Journal articles on the topic 'Mountain top removal'

The influence of leaf removal and decapitation (removal of apical bud and top two nodes) of determinate tomato (Lycopersicon esculentum Mill cv. Mountain Pride) plants on canopy development was investigated. Leaf removal and decapitation influenced subsequent leaf development and distribution, and early fruiting of greenhouse-grown tomato plants. `Removal of young axillary leaves increased the size of main (true) leaves in the middle and upper nodes, increased the number of nodes, and increased the number of early fruit produced. Removal of main leaves reduced axillary leaf development at nodes 5 and 9. Decapitation increased axillary leaf development in the middle and upper nodes and delayed early fruit production. These results suggest that cultural practices of tomatoes that remove leaves or apical buds to influence fruiting also affect canopy leaf development and distribution.

Karelia, like the entire Fennoscandian Shield, is a region with a low seismic activity. An example of the best-studied locality is a paleoseismic dislocation on Mount Vottovaara, which bears traces of disastrous Holocene geological events following the degradation of the last ice sheet. The evolution of the study area falls into three stages. At pre-Quaternary stage I, an uplifted block broken by numerous fractures and faults was formed. At glacial stage II, coarse clastic moraine was formed, the moving ice polished the crystalline basement surface and glacial scars were formed. At final deglaciation stages, the mountain top remained a nunatak. As Salpausselkä II marginal sediments retreated by about 70 km from the mountain, a postglacial stage in the region’s evolution, at which an earthquake occurred, began. It could have been triggered mainly by the consequences of the degradation of the Late Weischelian glaciations such as the rapid removal of the glacial load that contributed to the rejuvenation of various old faults. Changes in paleoecological conditions for the Mount Vottovaara area were reconstructed based on the results of lithological, palynological, diatom and radiocarbon studies of bottom sediments from a small lake on the mountain top. Vegetation dynamics from the Younger Dryas to the Subboreal period is presented. Small lake evolution stages were distinguished based on analysis of diatom complexes and the pollen and spores of aquatic and aquatic-subaquatic plants and Pediastrum algae. The data obtained show that minerogenic sediments were abruptly succeeded by organic in the late Preboreal-early Boreal period. The thickness of Boreal sediments and changes in the composition of diatom complexes and spore-and-pollen spectra suggest a depositional hiatus triggered by a strong earthquake which changed the water level of the pond and its basin structure. The earthquake is also indicated by numerous dismembered, displaced, thrown-away and shifted rock blocks and seismogravity downfalls. Deflation and other types of weathering are responsible for the formation of seide-shaped piles of blocks and boulders on the mountain top.

Abstract High-resolution idealized numerical simulations are used to examine the turbulent removal of cold-air pools commonly observed in mountain valleys and basins. A control simulation with winds aloft increasing from 0.5 to 20 m s−1 over 20 h combined with typical cold-air pool stratification illustrates the interplay over time of lowering of the top of the cold-air pool, spillover downstream of the valley from the upper reaches of the cold-air pool, wavelike undulations affecting the cold-air pool’s depth and stratification across the valley, and smaller temporal- and spatial-scale Kelvin–Helmholtz waves within the uppermost layers of the cold-air pool. The heat budget within the cold-air pool demonstrates the nearly compensating effects of vertical and horizontal advection combined with turbulent heating of the upper portion of the cold-air pool and cooling in the layers immediately above the cold-air pool. Sensitivities of turbulent mixing in cold-air pools to stratification and upstream terrain are examined. Although the characteristics of the turbulent mixing differ as the stratification and topography are modified, a bulk parameter [the cold-air pool Froude number (Fr)] characterizes the onset and amplification of turbulent mixing and the time of cold-air pool removal. When Fr > 1, Kelvin–Helmholtz waves and turbulent heat fluxes commence. Turbulent heat flux and wave activity increase until Fr = 2, after which the cold-air pool breaks down and is removed from the valley. The rate of cold-air pool removal is proportional to its strength; that is, a strong inversion generates larger heat fluxes once turbulent erosion is underway.

Abstract This study explores the sensitivity of clouds and precipitation to microphysical parameter perturbations using idealized simulations of moist, nearly neutral flow over a bell-shaped mountain. Numerous parameters are perturbed within the Morrison microphysics scheme. The parameters that most affect cloud and precipitation characteristics are the snow fall speed coefficient As, snow particle density ρs, rain accretion (WRA), and ice–cloud water collection efficiency (ECI). Surface precipitation rates are affected by As and ρs through changes to the precipitation efficiency caused by direct and indirect impacts on snow fall speed, respectively. WRA and ECI both affect the amount of cloud water removed, but the precipitation sensitivity differs. Large WRA results in increased precipitation efficiency and cloud water removal below the freezing level, indirectly decreasing cloud condensation rates; the net result is little precipitation sensitivity. Large ECI removes cloud water above the freezing level but with little influence on overall condensation rates. Two environmental experiments are performed to test the robustness of the results: 1) reduction of the wind speed profile by 30% (LowU) and 2) decreasing the surface potential temperature to induce a freezing level below the mountain top (LowFL). Parameter perturbations within LowU result in similar mechanisms acting on precipitation, but a much weaker sensitivity compared to the control. The LowFL case shows ρs is no longer a dominant parameter and As now induces changes to cloud condensation, since more of the cloud depth is present above the freezing level. In general, perturbations to microphysical parameters affect the location of peak precipitation, while the total amount of precipitation is more sensitive to environmental parameter perturbations.

AbstractMontane old-growth forests on the windward slopes of interior mountain ranges in British Columbia support high loadings of arboreal lichens. These lichens represent a major source of readily labile plant material and potentially play an important role in ecosystem nutrient dynamics. Given the role of winter storms in scouring lichens from within the canopy and the extended length of winter snowpack, from November through to May or even early June, in these ecosystems, the decomposition of lichen litterfall should be heavily influenced by placement within the snowpack. We have examined this factor by placing litter bags containing samples of the hair lichens, Alectoria sarmentosa and Bryoria spp., on top of the winter snowpack in the Cariboo Mountains. Samples were set out in early- (8 Nov.) mid- (16 Jan.) and late- (22 Mar.) winter and subsequently retrieved on spring snow-melt (22 May). Lichen samples that were buried in the lower snowpack all winter long (196 days) lost two-thirds of their original mass. In contrast lichens placed on the snowpack in mid- (127 days) or late-winter (61 days) lost only 6-15% of their total mass, far less than would be predicted on the basis of time in snowpack alone. Spot measurements showed that the snowpack environment effectively buffers litter samples from extreme winter conditions. All lichen samples placed within the snowpack showed much higher C/N ratios on removal, indicating rapid leaching of readily soluble cellular constituents in the snowpack environment. These findings indicate that the snowpack environment plays a major role in decomposition processes in these high-elevation forests and reinforces our view that lichens are a readily labile nutrient source within these ecosystems.

This paper describes the results of the first full-scale implementation of a two-stage vertical flow constructed wetland (CW) system developed to increase nitrogen removal. The full-scale system was constructed for the Bärenkogelhaus, which is located in Styria at the top of a mountain, 1,168 m above sea level. The Bärenkogelhaus has a restaurant with 70 seats, 16 rooms for overnight guests and is a popular site for day visits, especially during weekends and public holidays. The CW treatment system was designed for a hydraulic load of 2,500 L.d−1 with a specific surface area requirement of 2.7 m2 per person equivalent (PE). It was built in fall 2009 and started operation in April 2010 when the restaurant was re-opened. Samples were taken between July 2010 and June 2013 and were analysed in the laboratory of the Institute of Sanitary Engineering at BOKU University using standard methods. During 2010 the restaurant at Bärenkogelhaus was open 5 days a week whereas from 2011 the Bärenkogelhaus was open only on demand for events. This resulted in decreased organic loads of the system in the later period. In general, the measured effluent concentrations were low and the removal efficiencies high. During the whole period the ammonia nitrogen effluent concentration was below 1 mg/L even at effluent water temperatures below 3 °C. Investigations during high-load periods, i.e. events like weddings and festivals at weekends, with more than 100 visitors, showed a very robust treatment performance of the two-stage CW system. Effluent concentrations of chemical oxygen demand and NH4-N were not affected by these events with high hydraulic loads.

This study analyzes land-cover transitions in the headwaters of the Big Coal River in the Central Appalachian Region of the US, from 1976 to 2016, where surface mining was found as the major driver of landscape change. The land-change analysis combined Multi-Level Intensity Analysis for two-time intervals (1976–1996, 1996–2016) with Difference Components, to differentiate suspected misclassification errors from actual changes. Two land cover classifications were obtained with segmentation analysis and machine learning algorithms from historical high-resolution aerial images and ancillary data. Intensity Analysis allowed for the inspection of transitions across five land cover (LC) classes and measure the degree of non-stationarity of land change patterns. Results found surface mining-related classes and their transitions, including the effects of reclamation processes on areas mined before the enactment of the Surface Mining Control and Reclamation Act (SMCRA, 1977). Results included changes in settlement distribution, low vegetation, water bodies, and forest class transitions. The findings can be applied to infer similar land-change processes in the more extensive Appalachian region where Mountain Top Removal (MTR) operations are widespread. The overall method can be used to address similar problems and inform landscape managers with detailed data to support land use alternatives and conservation in regions that experienced intense changes and are characterized by anthropogenic disturbances and novel ecosystems.

We report a U–Pb monazite age of 23.0±0.2 Ma for the Shivling leucogranite, a tourmaline+muscovite±biotite leucogranite at the top of the High Himalayan slab in the Garhwal Himalaya, north India. The Shivling–Bhagirathi leucogranite is a viscous near-minimum melt, emplaced as a foliation parallel laccolith via a dyke network not far from its source region. Prograde heating occurred soon after the India–Asia collision at c. 50 Ma up to melting at 23 Ma and high temperatures (>550 °C) were maintained for at least 15 Ma after garnet growth. The leucogranite was emplaced at mid-crustal depths along the footwall of the Jhala fault, a large-scale low-angle normal fault, part of the South Tibetan Detachment system, above kyanite and sillimanite grade gneisses. The geometry of the leucogranite laccolith shows biaxial extension and boudinage both perpendicular (north-northeast–south-southwest) and parallel to the strike (west-northwest–east-southeast) of the mountain range. Unroofing occurred by underthrusting beneath the High Himalayan slab along the Main Central Thrust zone, progressively ‘jacking up’ the leucogranites, removal of material above by low-angle normal faulting, and erosion. Very rapid cooling at rates of 200–350 °C/Ma between 23–21 Ma immediately followed crystallization, as tectonic unroofing and erosion removed 24–28 km of overburden during this time. K–Ar muscovite ages are 22±1.0 Ma and fission track ages of zircons from >5000 m on the North Ridge of Shivling are 14.2±2.1 and 8.8±1.2 Ma and apatites are 3.5±0.79 and 2.61±0.23 Ma. Slow steady state cooling at rates of 20–30 °C/Ma from 20–1 Ma shows that maximum erosion rates and unroofing of the leucogranite occurred during the early Miocene. This timing coincides with initiation of low-angle, north-dipping normal faulting along the South Tibetan Detachment system.

Collisional mountain belts commonly develop intramontane basins from mechanical and isostatic subsidence during orogenic development. These frequently display a relict top surface, evidencing a change interval from basin infilling to erosion often via capture or overspill. Such surfaces provide markers that inform on orogenic growth patterns via climate and base level interplay. Here, we describe the top surface from the Sorbas Basin, a key intramontane basin within the Betic Cordillera (SE Spain). The surface is fragmentary comprising high elevation hilltops and discontinuous ridges developed onto the variably deformed final basin infill outcrop (Gochar Formation). We reconstruct surface configuration using DEM interpolation and apply 10Be/26Al cosmonuclides to assess surface formation timing. The surface is a degraded Early Pleistocene erosional pediment developed via autogenic switching of alluvial fan streams under stable dryland climate and base level conditions. Base-level lowering since the Middle Pleistocene focused headwards incision up interfan drainages, culminating in fan head capture and fan morphological preservation within the abandoned surface. Post abandonment erosion has lowered the basin surface by 31 m (average) and removed ~5.95 km3 of fill. Regional basin comparisons reveal a phase of Early Pleistocene surface formation, marking landscape stability following the most recent Pliocene-Early Pleistocene mountain building. Post-surface erosion rate quantification is low and in accordance with 10Be denudation rates typical of the low uplift Betic Cordillera.

<p>Picoplankton, both autotrophic (APP) and heterotrophic (HPP), ciliates and heterotrophic nanoflagellates (HNF) were counted and their biovolume measured monthly over a 3 year period in Lake Paione Superiore (LPS), a high mountain lake in the Italian alpine region. Analyses of organic carbon, particulate and dissolved, were performed at the same time. APP were negligible and picocyanobacteria almost absent. HPP showed seasonal variations, with low numbers in winter/spring and maxima of nearly 10⁶cell ml^-1 in August/September, corresponding to 60μg C l^-1. Free-living, non- pigmented flagellates showed a density range from 10⁴ l^-1to 10⁶ l^-1with a prevalence of cells &lt;3 μm. Their carbon ranged between 0.1-9 μg C l^-1. Ciliate numbers ranged from 0.02 to 11 10³ l^-1. For much of the year different species of <em>Urotricha</em> were found. Conversely, <em>Strombidium</em> appeared during the ice-free period and <em>Halteria</em> <em>grandinella</em> under the ice, indicating a strict dependence on temperature. Carbon in the microbial loop of LPS (near the bottom) was mainly confined to bacteria (73%), with 20% in HNF and only 7% in ciliates. Total organic carbon (TOC) concentration, measured after the removal of net plankton, ranged from 0.26 to 1.77 mgC l^-1with a prevalence of the dissolved form (87% av.). The average particulate organic carbon (POC) concentration was 0.24 mg C l^-1. All the components of the microbial loop showed a decline under the ice-cover. Bacterial carbon concentration was three times lower under the ice than in the ice-free season (7.9-24.4 μgC l^-1, respectively); protozoa carbon too declined under the ice-cover (3.1-5.8 μgC l^-1 for HNF and 0.4-1.7μgC l^-1 for ciliates in the ice-cover and ice-free periods, respectively). The drop in the microbial-loop carbon occurring in late summer may be related to the presence of a <em>Daphnia</em> population peak. At that moment, the structure of the microbial loop is transformed by a top-down control of <em>Daphnia</em>.</p>

Posttransplant root growth is critical for landscape plant establishment. The Horhizotron provides a way to easily measure root growth in a wide range of rhizosphere conditions. Mountain laurel (Kalmia latifolia L.) plants were removed from their containers and planted in Horhizotrons in a greenhouse in Auburn, Ala., and outdoors in Blacksburg, Va. Each Horhizotron contained four glass quadrants extending away from the root ball, and each quadrant within a Horhizotron was filled with a different substrate (treatment): 1) 100% pine bark (Pinus taeda L., PB), 2) 100% soil, 3) a mixture of 50 PB: 50 soil (by volume), or 4) 100% soil along the bottom of the quadrant to a depth of 10 cm (4 inches) and 100% PB layered 10 cm (4 inches) deep on top of the soil. Root growth along the glass panes of each quadrant was measured biweekly in Auburn and weekly in Blacksburg. Roots were longer in all treatments containing pine bark than in 100% soil. When pine bark was layered on top of soil, roots grew into the pine bark but did not grow into the soil. Results suggest that amending soil backfill with pine bark can increase posttransplant root growth of container-grown mountain laurel.

Abstract Post-transplant root growth is critical for landscape plant establishment. The Horhizotron™ provides a way to easily measure root growth in a wide range of rhizosphere conditions. Mountain laurel (Kalmia latifolia L.) plants were removed from their containers and planted in Horhizotrons in a greenhouse in Auburn, AL, and outdoors in Blacksburg, VA. Each Horhizotron contained four glass quadrants extending away from the root ball, and each quadrant within a Horhizotron was filled with a different substrate (treatment): 1) 100% pine bark (Pinus taeda L., PB), 2) 100% soil, 3) a mixture of 50:50 (by vol) PB:soil, or 4) 100% soil along the bottom of the quadrant to a depth of 10 cm (4 in) and 100% PB layered 10 cm (4 in) deep on top of the soil. Root growth along the glass panes of each quadrant was measured bi-weekly in Auburn and weekly in Blacksburg. In both locations, roots were longer in all treatments containing pine bark than in 100% soil. When pine bark was layered on top of soil, roots grew into the pine bark but did not grow into the soil. Results suggest that amending soil backfill with pine bark can increase post-transplant root growth of container-grown mountain laurel.

The Fukushima Daiichi nuclear power plant accident caused radioactive pollution by 131I, 134Cs and 137Cs. The surface of the ground was contaminated at a volume of 3 × 107 m3. The government has mandated that the top 5 cm of the contaminated soil be removed and stored, in this way, it is desirable to reduce its volume. Soil samples were collected from a mountain, a rice field and a vegetable field in northern Japan, and the silt was extracted from the muddy water by washing the soil. Next, the silt was sprayed with a solution of cesium carbonate (Cs2CO3). We determined the amounts of Al, Si, K and Cs in the silt particles using micro-particle-induced X-ray emission (micro-PIXE) analysis. The silt particles from a vegetable field, a rice field and a mountain were mainly formed from smectite or vermiculite, which absorbs Cs atoms. The measurements at multiple detection angles confirmed that Cs atoms were uniformly absorbed within silt particles less than [Formula: see text] in diameter. This resulted that the radioactive Cs atoms were adsorbed in silt particles within [Formula: see text] of the surface.

Abstract The Badwater turtleback, Copper Canyon turtleback, and Mormon Point turtleback are three anomalously smooth, ∼2-km-high basement structures in the Black Mountains of Death Valley, California. Their structural evolution is linked to the Cenozoic tectonic history of the region. To explore their evolution, we apply (U-Th)/He, Ar/Ar, and U-Pb analyses, with multi-domain diffusion modeling to 10 samples from the Badwater turtleback. The cooling history of the Badwater turtleback is used as a proxy for its exhumation history as it uplifted from warmer depths. We find slow (<2 °C/m.y.) cooling from ca. 32 to 6 Ma, followed by rapid (120–140 °C/m.y.) cooling from ca. 6 to 4.5 Ma, and finally moderate (30–120 °C/m.y.) cooling occurred from ca. 4.5 Ma until the present. When these data are added to previously published cooling paths of the Copper Canyon turtleback and Mormon Point turtleback, a northwest cooling pattern is broadly evident, consistent with a top-to-NW removal of the hanging wall along a detachment fault. We propose a six-phase tectonic history. Post-orogenic collapse and erosion dominated from ca. 32 to 16 Ma. At 16–14 Ma, a detachment fault formed with a breakaway south and east of the Black Mountains, with normal faults in the hanging wall. Moderate extension continued from 14 to 8 Ma causing exhumation of the turtlebacks through the brittle-ductile transition. Dextral transtension at 7–6 Ma produced a pull-apart basin across the Black Mountains with rapid extension. The locus of deformation transferred to the Panamint and Owens Valley fault systems from 4.5 to 3.5 Ma, slowing extension in the Black Mountains until present.

Based on the methods of remote identification and spatial fixation of glacial relief forms with their subsequent geomorphological analysis, the lower boundary of the chionosphere, the glacier feeding areas, boundaries and glacier parameters of the maximum phase of the Last Glacial Maximum glaciers (MIS 2) of the mountainous regions of Southern Baikal region were established and a paleogeographic map was constructed. The object of this study was the dynamics of exogenous processes during the development of the permafrost zone in the Southern Baikal region. The subject of the study is the glacial landforms of the Late Neopleistocene of the Khamar-Daban ridge. Glaciers were reconstructed using absolute marks of destructive and accumulative traces using topographic maps, aerial photographs and satellite images. Paleogeographic constructions were carried out using computer programs Google Earth Pro and SAS. Planet release. The final generalization of the primary material was carried out on a topographic basis on a scale of 1:500,000. The results obtained made it possible to establish the depression of the snow boundary at the maximum of the last cooling at 1300…1400 m in relation to the current climatic and to reveal the features of deformation of the lower border of the chionosphere. The reconstruction of the paleogeographic situation showed the spread of simple and complex (dendritic) types of mountain-valley glaciers, as well as mesh and mountain-glaciation glaciers in some parts of the mountain top. It was established that in the region of the maximum depression of the snowy border, some glaciers reached the coast of Lake Baikal, which could contribute to dilution of secondary aureoles and the displacement of placer mineral deposits. On the southern slope of the Khamar-Daban ridge, the snow boundary passed at an altitude of 1800…2200 m, and glaciation was limited to the development of only circus and circus-valley glaciers of small sizes, contributing to the formation of placers far removed from indigenous sources

Abstract The Betic-Rif arcuate mountain belt (southern Spain, northern Morocco) has been interpreted as a symmetrical collisional orogen, partly collapsed through convective removal of its lithospheric mantle root, or else as resulting of the African plate subduction beneath Iberia, with further extension due either to slab break-off or to slab retreat. In both cases, the Betic-Rif orogen would show little continuity with the western Alps. However, it can be recognized in this belt a composite orocline which includes a deformed, exotic terrane, i.e. the Alboran Terrane, thrust through oceanic/transitional crust-floored units onto two distinct plates, i.e. the Iberian and African plates. During the Jurassic-Early Cretaceous, the yet undeformed Alboran Terrane was part of a larger, Alkapeca microcontinent bounded by two arms of the Tethyan-African oceanic domain, alike the Sesia-Margna Austroalpine block further to the northeast. Blueschist- and eclogite-facies metamorphism affected the Alkapeka northern margin and adjacent oceanic crust during the Late Cretaceous-Eocene interval. This testifies the occurrence of a SE-dipping subduction zone which is regarded as the SW projection of the western Alps subduction zone. During the late Eocene-Oligocene, the Alkapeca-Iberia collision triggered back-thrust tectonics, then NW-dipping subduction of the African margin beneath the Alboran Terrane. This Maghrebian-Apenninic subduction resulted in the Mediterranean basin opening, and drifting of the deformed Alkapeca fragments through slab roll back process and back-arc extension, as reported in several publications. In the Gibraltar area, the western tip of the Apenninic-Maghrebian subduction merges with that of the Alpine-Betic subduction zone, and their Neogene roll back resulted in the Alboran Terrane collage astride the Azores-Gibraltar transpressive plate boundary. Therefore, the Betic-Rif belt appears as an asymmetrical, subduction/collision orogen formed through a protracted evolution straightfully related to the Alpine-Apenninic mountain building.

A new modification of a table-top laser-driven water-jet plasma X-ray source has been successfully implemented and commissioned at the Extreme Light Infrastructure (ELI) Beamlines user facility. In order to preserve the broadband nature of the source for spectroscopic experiments, a polycapillary lens was initially chosen as the focusing element. Generally, polycapillary X-ray optics have a narrow photon acceptance angle and small field of view, making alignment complicated and time-consuming. This contribution demonstrates a straightforward, reliable and reproducible procedure for aligning polycapillary focusing optics with broadband X-rays. The method involves a pre-alignment step where two X-ray slits are mounted orthogonally on opposite sides of a 3D-printed cylindrical polycapillary holder. This helps to precisely determine the optical axis of the X-ray beam. Subsequent mounting of the polycapillary in the pre-aligned holder with the slits removed allowed for immediate transmission of the X-ray photons through the optics and has provided a good starting point for fine alignment.

The comandra blister rust parasite (Cronartiumcomandrae Pk.) causes a serious canker disease of lodgepole pine (Pinuscontorta Dougl. ex Loud. ssp. latifolia (Engelm.) Critch.) in the central Rocky Mountains. The expansion, longevity, and distribution of comandra blister rust cankers were studied by annual monitoring, reconstructing canker histories, and random sampling. In saplings, infections occur throughout the lower 80% of the crown; and branch cankers expand toward the bole at 2.5 cm•year−1, regardless of temperature, age, position, tree size, vigor, or susceptibility to infection. The proportion of branch cankers that develop into stem cankers decreases logistically both with distance from infection site to bole and with time since infection. Fewer than 50% of branch cankers that are farther than 20 cm from the bole or more than 8 years old are expected to establish stem cankers. The proportion of branch cankers that become stem cankers decreases with distance more rapidly for comandra blister rust than for other stem rusts. The mean height of stem cankers increases with total tree height, but cankers are uncommon at the top of the crown and low on the trunk of larger trees. The number of years for a canker to girdle its host equals the diameter of the stem at the center of the canker measured in centimetres. Because girdling cankers develop infrequently, slowly, and predictably, potential losses from comandra blister rust can be reduced by timely and appropriate removal of damaged trees.

Apatite fission-track data from 16 sedimentary and crystalline rock samples indicate rapid regional Early Eocene denudation within the onshore Beaufort–Mackenzie region of northwestern Canada. Rocks exposed in the area of the Big Fish River, Northwest Territories, cooled rapidly from paleotemperatures of >80–110 °C to <6 0°C at ca. 56 ± 2 Ma, probably in response to kilometre-scale denudation associated with regional structuring. The data suggest the region experienced a geothermal gradient of ~28 °C/km prior to rapid cooling, with ~2.7 km of section having been removed from the top of the exposed section in the Moose Channel Formation and ~3.8 km from the top of the exposed Cuesta Creek Member. Farther to the west, rocks exposed in the headwaters of the Blow River in the Barn Mountains, Yukon Territories, were exposed to paleotemperatures above 110 °C in the Late Paleocene prior to rapid cooling from these elevated paleotemperatures due to kilometre-scale denudation at ca. 56 ± 2 Ma. Exposure of these samples at the surface today requires that a minimum of ~3.8 km of denudation occurred since they began cooling below ~110 °C. The apatite analyses indicate that rocks exposed in the northern Yukon and Northwest Territories experienced rapid cooling during the Early Eocene in response to kilometre-scale denudation, associated with early Tertiary folding and thrusting in the northern Cordillera. Early Eocene cooling–uplift ages for onshore sections are slightly older than the Middle Eocene ages previously documented for the adjacent offshore foldbelt and suggest that the deformation progressed toward the foreland of the foldbelt through time.

The study of single ion channel kinetics in cell electrophysiology has been made possible by the introduction of patch-clamp techniques. Recordings can be made from a patch of membrane either attached to the cell or excised into controlled solutions. Though this technique has been widely used for more than a decade, the structure of the membrane patch and its associated cytoplasmic elements are not known except for recent work done in this laboratory . We have improved this technique to visualize membrane patches using high voltage electron microscope and also identified one class of channels in the patch by immunocytochemistry.The procedure for preserving biological structure in a glass patch pipette is basically same as described earlier as “dry mounting technique” . Briefly, after making a patch, the pipette is removed from the bath and the tip is freeze-fixed in liquid propane. A slight negative pressure is applied to the pipette while freeze-fixing in order to stretch the shape of the patch. Once fixed, the tip is not exposed to temperatures higher than-126° C. A 0.5 cm bit of the pipette tip is broken off, stored in IN2, and then freeze dried between -126° to -80° C under high vaccum (10-6 Torr).

In 2016 and 2017, the Utah Geological Survey partnered with the U.S. Bureau of Land Management to conduct a paleontological inventory of the Morrison Formation south and west of Blanding, Utah, along the eastern margin of the Bears Ears National Monument. The Morrison in this region is critical to understanding Upper Jurassic stratigraphy across the Colorado Plateau because it is the type area for the Bluff Sandstone, Recapture, Westwater Canyon, and Brushy Basin Members of the Morrison Formation, which are the basis for nomenclature in New Mexico and Arizona as well. Researchers have disagreed about nomenclature and correlation of these units, which transition northward in the study area into the Tidwell, Salt Wash, and Brushy Basin Members. Numerous vertebrate localities make inclusion of the Bluff Sandstone and Recapture Members in the Middle Jurassic San Rafael Group, as suggested by some previous workers, unlikely. The Salt Wash Member does not separate the Bluff Sandstone and Recapture Members at Recapture Wash, but sandstone lenses of Salt Wash facies occur higher in northern Recapture exposures. Northward, along the outcrop belt east of Comb Ridge, the Bluff-Recapture interval thins, interlenses, and pinches out into the Tidwell and lower Salt Wash, with the main lower sandstone interval of the Westwater Canyon merging northward into the upper Salt Wash Member. The partly covered, 1938 type section of the Brushy Basin Member is identified along Elk Mountain Road at the southern end of Brushy Basin. We describe a detailed, accessible Morrison Formation reference section about 11.2 km (7 mi) to the south along Butler Wash. There, 81.68 m (268 ft) of Brushy Basin Member is well exposed along a road between the top of the Westwater Canyon Member and the base of the Lower Cretaceous Burro Canyon Formation. We informally call the upper sandstone bed(s) of the Westwater Canyon Member that cap mesas and benches in the region “No-Mans Island beds.” Smectitic mudstones between the No-Mans Island beds and the main sandstone body of the Westwater Canyon suggest that the Salt Wash-Brushy Basin contact to the north may be somewhat older than the base of the Brushy Basin Member as originally defined in its type area. Determining whether the No-Mans Island beds pinch out to the north or are removed by erosion below the regional basal Brushy Basin paleosol requires further research. Several significant fossil vertebrate and plant sites have been documented in the Brushy Basin type area. Newly identified volcanic ashes provided zircons for U-Pb ages of 150.67 ± 0.32 Ma from near the top of the Brushy Basin Member and of 153.7 ± 2.1 Ma and 153.8 ± 2.2 Ma for two zircons in lower part of Recapture Member. At the top of the Brushy Basin Member, ferruginous paleosols commonly overlying conglomeratic sandstone are speculated to be of Early Cretaceous age (detrital zircon age pending) and are assigned herein to the Yellow Cat Member of the Burro Canyon Formation. These iron-rich paleosols suggest wetter climatic conditions during the Jurassic-Cretaceous transition in the Blanding basin.

Abstract The Lower Cretaceous Cadomin Formation in the Western Canada Sedimentary Basin is a thin, regionally extensive, conglomeratic fluvial deposit that accumulated over many million years on the sub-Cretaceous unconformity. Based on a dataset of approximately 50 cores and 750 wireline well logs from west-central Alberta, detailed isopach mapping of the overlying deposits reveals the presence of a complex, terraced paleo-topography on the top of the Cadomin Formation, consisting of six terrace levels in the study area. These terraces flank a series of north–south valleys that feed into a larger east–west valley to the north of the study area. This larger valley is also bordered by terraces that step downward to the north. The gradients of the north–south valley thalwegs are steeper than the flanking terraces, indicating that each terrace is diachronous and was most likely formed by the headward migration of knickpoints generated by episodic incision of the trunk valley. This paleo-topography formed during a prolonged period of falling base level caused by unroofing of the adjacent orogen. Thus, the Cadomin Formation represents a falling-stage systems tract. The deposits underlying each terrace consist mainly of channel-thalweg and braid-bar deposits. Preservation of full channel-bar successions in many terraces is consistent with terrace abandonment as incision resumed following a period of mild aggradation. Terrace abandonment is also indicated by the presence of a capping layer of wind-blown silt. Pedogenic alteration of this loessite is greatest on the highest terraces and extends to considerable depths, indicating the existence of a significant hiatus at the top of the Cadomin Formation. This surface, which lies above falling-stage deposits, should be used as the sequence boundary, if the sequence boundary is thought to coincide with the time of lowest base level. This surface, although its formation was diachronous, represents a real landscape surface, unlike the composite erosion surface beneath the Cadomin Formation (i.e., the sub-Cretaceous unconformity). The alternation of incision and aggradation that generated the terraces was probably the result of allogenic fluctuations in sediment supply caused by climate cycles, as was the case for analogous Quaternary terrace staircases. Downstepping alluvial terraces are a viable mechanism for the progradation of alluvial gravels long distances from a mountain belt during periods of basin uplift, and may explain the relatively thin, but areally extensive, alluvial sandstone and conglomerate sheets that are common at major unconformities in the stratigraphic record. We suggest that signs of subtle terracing may have been overlooked in similar sheet-like alluvial deposits elsewhere, although they can be removed by erosion during shoreline transgression or by later fluvial-channel migration. In the case of the Cadomin Formation, the exceptional preservation of the terraces is likely due to a combination of the difficulty of eroding the conglomerate and indurated loessite cap, and of the low-energy nature of floodplain sedimentation in the overlying Gething Formation.

The discontinuous density gradient with Percoll® is routinely used for sperm selection before IVF in bovine in vitro embryo production. However, few studies have been addressed to investigate the use of this colloid in single layer centrifugation (SLC) before sperm freezing. Therefore, this study aimed to verify the effect of SLC with Percoll Plus® (PP; GE Healthcare, Uppsala, Sweden) before freezing on plasma membrane stability (PMS) and lipid peroxidation (LP) of frozen–thawed bull semen. Three Nellore bulls housed at the Artificial Insemination Station were used. The ejaculates, 6 of each bull, were collected by artificial vagina. On the day of each collection, semen was first assessed for sperm motility, concentration, and morphology. Then, the ejaculates were pooled and ~1 billion spermatozoa either diluted [D; 1:2 (v/v)] in freezing extender (without glycerol) or undiluted (UN) was placed on top of a 9-mL column of PP at concentrations of 70% or 90%, resulting in the 70D, 70UD, 90D, and 90UD treatment groups. After centrifugation at 839 × g for 13 min, except for the control group, the supernatant was removed and the pellet of spermatozoa was resuspended in freezing extender (plus glycerol) to a final concentration of 50 × 106 spermatozoa mL−1. Then, 0.5-mL straws were filled, cooled, and frozen. Sperm samples of each group and different days of collection were thawed in a water bath at 37°C for 30 s and diluted at 5 × 106 spermatozoa mL−1 in TALP-polyvinyl alcohol (PVA) plus Hoechst 342 (Sigma Co., St. Louis, MO, USA). Then, samples were stained for PMS with the association of MitoSoxRed (Molecular Probes Inc., Eugene, OR, USA) and YO-PRO-1 (Thermo Fisher Scientific, Hampton, NH, USA) and with C11-BODYPY (Thermo Fisher Scientific) for LP. The sperm samples were analysed by flow cytometer (BD LSR, Fortessa, Becton Dickinson, Mountain View, CA, USA), with the data analysed through use of BD FACSDIVATM software (version 6.1). Analysis of variance and Tukey’s test were used for statistical analysis with P < 0.05 taken as significant. A lower percentage of cells displaying no destabilised membrane was found in 70D (27.6 ± 5.6) compared with the control group (43.1 ± 3.0), but no difference was observed among control group, 70UD (37.2 ± 5.1), 90UD (42.2 ± 7.5), and 90D (32.3 ± 6.5). There was a tendency (P = 0.08) for a higher proportion (P < 0.05) of cells showing LP in control group (48.2 ± 5.7), 70D (48.3 ± 8.5), and 90D (44.43 ± 7.3) compared with the undiluted groups. Thus, spermatozoa selection using SLC with Percoll Plus® did not enhance membrane stability, but sperm LP might be diminished by using SLC with lesser dilution or concentration. It is suggested that lower generation of reactive oxygen species occurred when SLC with PP was used, indicating a possible protective effect on membrane phospholipids. Further studies, including anion superoxide, hydrogen peroxide, and mitochondrial membrane potential could elucidate these findings. This research was supported by FAPESP (grant #2015/20986-3), Tairana AI Station and Master Fertility, Brazil.

These slides are intended to help students develop a justice-based lens for analysis of the relationship between energy and society. In particular, they explore the concepts of environmental justice and climate justice, drawing on the case of the No Dakota Access Pipeline movement by the Standing Rock Sioux and their allies. These slides were created by a sociologist to serve as an introductory set of slides for an environmental studies course on energy and society. They would also be well suited for a class period dedicated to themes of environmental justice and climate justice, especially for how these relate to energy extraction. To illuminate the social justice implications of energy extraction and resulting climate change, the slides include brief examples from the Biloxi-Chitimacha-Choctaw Tribe, who are climate refugees from Louisiana; women resisting mountain top removal coal mining in Appalachia; and Nez Perce experiences losing traditional food sources because of climate change. These slides include an 8-minute video on Standing Rock and 15-minute discussion-based activity.

Abstract Recent studies show that several tree species are spreading to higher latitudes and elevations due to climate change. European beech, presently dominating from the colline to the subalpine vegetation belt, is already present in upper montane subalpine forests and has a high potential to further advance to higher elevations in European mountain forests, where the temperature is predicted to further increase in the near future. Although essential for adaptive silviculture, it remains unknown whether the upward shift of beech could be assisted when it is mixed with Norway spruce or silver fir compared with mono-specific stands, as the species interactions under such conditions are hardly known. In this study, we posed the general hypotheses that the growth depending on age of European beech in mountain forests was similar in mono-specific and mixed-species stands and remained stable over time and space in the last two centuries. The scrutiny of these hypotheses was based on increment coring of 1240 dominant beech trees in 45 plots in mono-specific stands of beech and in 46 mixed mountain forests. We found that (i) on average, mean tree diameter increased linearly with age. The age trend was linear in both forest types, but the slope of the age–growth relationship was higher in mono-specific than in mixed mountain forests. (ii) Beech growth in mono-specific stands was stronger reduced with increasing elevation than that in mixed-species stands. (iii) Beech growth in mono-specific stands was on average higher than beech growth in mixed stands. However, at elevations > 1200 m, growth of beech in mixed stands was higher than that in mono-specific stands. Differences in the growth patterns among elevation zones are less pronounced now than in the past, in both mono-specific and mixed stands. As the higher and longer persisting growth rates extend the flexibility of suitable ages or size for tree harvest and removal, the longer-lasting growth may be of special relevance for multi-aged silviculture concepts. On top of their function for structure and habitat improvement, the remaining old trees may grow more in mass and value than assumed so far.

The last few decades have been a time of growing interest and concern about our environment. The extinction of plant and animal species, the pollution of our water supply and the depletion of critical resources have generated a new consciousness about our biosphere. The liturgy of the church must seriously engage with the ecological perspective, and the entire life, worship and praxis of the church should include an ecological dimension and vision. Two very powerful elements in enhancing worshippers� ecological consciousness are praise or doxology and the important counterpart of doxology, namely song and prayer of lament as well as confession of guilt. This means that believers celebrate the inalienable beauty and dignity of all living kind and bear witness to God�s manifold creation. Believers are also to bear witness to creation�s groaning as the ground suffers from deforestation, mountain-top removal, toxic dumping and rising temperatures. Comfort and new possibilities for rectifying the ecological crisis may develop from grief and lament. The liturgical witness will be that God�s newness will break the cycles of self-destruction and make new life possible.

To the memory of Nicholas John (Nick) Archibald (1951−2014), master of cratonic geology. Cratons, defined by their resistance to deformation, are guardians of crustal and lithospheric material over billion-year time scales. Archean and Proterozoic rocks can be found in many places on earth, but not all of them represent cratonic areas. Some of these old terrains, inappropriately termed “cratons” by some, have been parts of mobile belts and have experienced widespread deformations in response to mantle-plume-generated thermal weakening, uplift and consequent extension and/or various plate boundary deformations well into the Phanerozoic. It is a common misconception that cratons consist only of metamorphosed crystalline rocks at their surface, as shown by the indiscriminate designation of them by many as “shields.” Our compilation shows that this conviction is not completely true. Some recent models argue that craton formation results from crustal thickening caused by shortening and subsequent removal of the upper crust by erosion. This process would expose a high-grade metamorphic crust at the surface, but greenschist-grade metamorphic rocks and even unmetamorphosed supracrustal sedimentary rocks are widespread on some cratonic surfaces today, showing that craton formation does not require total removal of the upper crust. Instead, the granulitization of the roots of arcs may have been responsible for weighing down the collided and thickened pieces and keeping their top surfaces usually near sea level. In this study, we review the nature and origin of cratons on four well-studied examples. The Superior Province (the Canadian Shield), the Barberton Mountain (Kaapvaal province, South Africa), and the Yilgarn province (Western Australia) show the diversity of rocks with different origin and metamorphic degree at their surface. These fairly extensive examples are chosen because they are typical. It would have been impractical to review the entire extant cratonic surfaces on earth today. We chose the inappropriately named North China “Craton” to discuss the requirements to be classified as a craton.

AbstractIn this study we describe how the river morphology of seven High Tatras streams has been influenced in different ways by a severe windstorm that occurred in November 2004. A control site situated in an undisturbed area is compared with six sites in windstorm damaged areas. In 2009–2010 River Habitat Survey (RHS) was used to assess the character of 500 m lengths of stream and to derive associated morphological indices (HQA, HMS sensu Raven 1998, RHS indices sensu Vaughan 2010). Large amounts of large woody debris in the channel influenced the streams despite most of it having been removed after the windstorm. Streams situated in deforested valley slopes were probably more affected by erosion; they had higher amounts of transported inorganic matter and also depositional bar features. Some changes in land-use had occurred with streams situated on the south-east side of the High Tatras having a more uniform banktop vegetation structure than the other streams. Distinct secondary succession of bank top vegetation was observed along windstorm influenced streams. The highest percentage of shrubs occurred where impacted streams remained untouched. Morphologically, the streams most affected by windstorm are those situated in deforested steep valley slopes that are affected by erosion and siltation.

Trauma is a common phenomenon in South Africa, with a large proportion of patients suffering from penetrating chest injuries. Occasionally atypical penetrating thoracic injuries require surgical intervention with special considerations. We describe the management of a 15-year-old boy who presented to our trauma unit with a large diameter branch penetrating his left chest above the left clavicle and with the tip lodged in the mediastinum between the great vessels. Pulsatile movement of the foreign body was clearly visible and required careful consideration for the optimal approach and possible complications that may arise. The tract and location of the foreign body made the approach and management of this patient unique and a valuable learning opportunity. A high lateral thoracotomy was done, and the object removed under direct vision. It yielded excellent exposure and proved to be a good alternative approach for certain atypical cases. The boy made a full recovery with no long-term complications.

During a survey of pathogenic oomycetes in Nanjing, China from June 2019 to October 2020, at least ten adjacent Rhododendron pulchrum plants at a Jiangjun Mountain scenic spot showed symptoms of blight, and crown and root discoloration . Symptomatic root tissues collected from three 6-year-old plants were rinsed with water, cut into 10-mm pieces, surface sterilized with 70% ethanol for 1 min, and plated onto 10% clarified V8 PARP agar (cV8A-PARP) containing pimaricin (20 mg/liter), ampicillin (125 mg/liter), rifampicin (10 mg/liter), and pentachloronitrobenzene (20 mg/liter). Four Pythium-like isolates were recovered after three days of incubation at 26°C, and purified using hyphal-tipping. Ten agar plugs (2×2 mm2) of each isolate were grown in 10 mL of 10% clarified V8 juice (cV8) in a 10 cm plate at 26°C for 3 days to produce mycelial mats, and then the cV8 was replaced with sterile water. To stimulate sporangial production, three to five drops of soil extract solution were added to each plate. Sporangia were terminal, ovoid to globose, and the size is 24 to 45.6 (mean 34.7) (n=10.8) in length x 23.6 to 36.0 (mean 29.8) (n=6.2) in width. Gametangia were not observed in cV8A or liquid media after 30 days. For colony morphology, the isolates were sub-cultured onto three solid microbial media (cV8A-PARP, potato dextrose agar, corn meal agar) . All isolates had identical morphological features in the three media. Complete ITS and partial LSU and cox2 gene regions were amplified using primer pairs ITS1/ITS4, NL1/NL4, and FM58/FM66 , respectively. The ITS, LSU, and cox2 sequences of isolate PC-dj1 (GenBank Acc. No. MW205746, MW208002, MW208003) were 100.00% (936/936 nt), 100.00% (772/772 nt), and 99.64% (554/556 nt) identical to those of JX985743, MT042003, and GU133521, respectively. We built a maximum-likelihood tree of Phytopythium species using the concatenated dataset (ITS, LSU, cox2) to observe interspecific differences. Based on the morphological characters and sequences, isolate PC-djl was identified as Phytopythium litorale . As the four isolates (PC-dj1, PC-dj2, PC-dj3 and PC-dj4) tested had identical morphological characters and molecular marker sequences, the pathogenicity of the representative isolate, PC-dj1, was tested using two inoculation methods on ten one-year-old R. pulchrum plants. For the first inoculation method, plants were removed from the pot, and their roots were rinsed with tap water to remove the soil. Each of these plants was placed in a glass flask containing 250 mL of sterile water and 10 blocks (10 x 10 mm2) of mycelial mats harvested from a three-day-old culture of P. litorale, while the other plant was placed in sterile water as a control, and incubated at 26°C. After three days, symptoms including crown rot, root rot and blight was observed on the inoculated plants whereas the control remained asymptomatic. For the second inoculation method, ten plants were dug up to expose the root ball. Ten three-day-old cV8A plugs (5×5 mm2) from a PC-dj1 culture or sterile cV8A plugs were evenly insert into the root ball of a plant before it was planted back into the original pots. Both plants were maintained in a growth chamber set at 26°C with a 12/12 h light/dark cycle and irrigated as needed. After 14 to 21 days, the inoculated plant had symptoms resembling those in the field , while the control plant remained asymptomatic. Each inoculation method was repeated at triplicate and the outcomes were identical. Phytopythium isolates with morphological features and sequences identical to those of PC-dj1 were recovered from rotted crown and root tissues of all inoculated plants. Previously, P. litorale was found causing diseases of apple and Platanus orientalis in Turkey, fruit rot and seedling damping-off of yellow squash in southern Georgia, USA. This is the first report of this species causing crown and root rot on R. pulchrum, an important ornamental plant species in China. Additional surveys are ongoing to determine the distribution of P. litorale in the city of Nanjing.

“Journalists have to begin a new type of journalism, sometimes being the guide on the side of the civic conversation as well as the filter and gatekeeper.” (Kolodzy 218) “In many respects, citizen journalism is simply public journalism removed from the journalism profession.” (Barlow 181) 1. Citizen Journalism — The Latest Innovation? New Media theorists such as Dan Gillmor, Henry Jenkins, Jay Rosen and Jeff Howe have recently touted Citizen Journalism (CJ) as the latest innovation in 21st century journalism. “Participatory journalism” and “user-driven journalism” are other terms to describe CJ, which its proponents argue is a disruptive innovation (Christensen) to the agenda-setting media institutions, news values and “objective” reportage. In this essay I offer a “contrarian” view, informed by two perspectives: (1) a three-stage model of theory-building (Carlile & Christensen) to evaluate the claims made about CJ; and (2) self-reflexive research insights (Etherington) from editing the US-based news site Disinformation between November 1999 and February 2008. New media theories can potentially create “cognitive dissonance” (Festinger) when their explanations of CJ practices are compared with what actually happens (Feyerabend). First I summarise Carlile & Christensen’s model and the dangers of “bad theory” (Ghoshal). Next I consider several problems in new media theories about CJ: the notion of ‘citizen’, new media populism, parallels in event-driven and civic journalism, and mergers and acquisitions. Two ‘self-reflexive’ issues are considered: ‘pro-ams’ or ‘professional amateurs’ as a challenge to professional journalists, and CJ’s deployment in new media operations and production environments. Finally, some exploratory questions are offered for future researchers. 2. An Evaluative Framework for New Media Theories on Citizen Journalism Paul Carlile and Clayton M. Christensen’s model offers one framework with which to evaluate new media theories on CJ. This framework is used below to highlight select issues and gaps in CJ’s current frameworks and theories. Carlile & Christensen suggest that robust theory-building emerges via three stages: Descriptive, Categorisation and Normative (Carlile & Christensen). There are three sub-stages in Descriptive theory-building; namely, the observation of phenomena, inductive classification into schemas and taxonomies, and correlative relationships to develop models (Carlile & Christensen 2-5). Once causation is established, Normative theory evolves through deductive logic which is subject to Kuhnian paradigm shifts and Popperian falsifiability (Carlile & Christensen 6). Its proponents situate CJ as a Categorisation or new journalism agenda that poses a Normative challenged and Kuhnian paradigm shift to traditional journalism. Existing CJ theories jump from the Descriptive phase of observations like “smart mobs” in Japanese youth subcultures (Rheingold) to make broad claims for Categorisation such as that IndyMedia, blogs and wiki publishing systems as new media alternatives to traditional media. CJ theories then underpin normative beliefs, values and worldviews. Correlative relationships are also used to differentiate CJ from the demand side of microeconomic analysis, from the top-down editorial models of traditional media outlets, and to adopt a vanguard stance. To support this, CJ proponents cite research on emergent collective behaviour such as the “wisdom of crowds” hypothesis (Surowiecki) or peer-to-peer network “swarms” (Pesce) to provide scientific justification for their Normative theories. However, further evaluative research is needed for three reasons: the emergent collective behaviour hypothesis may not actually inform CJ practices, existing theories may have “correlation not cause” errors, and the link may be due to citation network effects between CJ theorists. Collectively, this research base also frames CJ as an “ought to” Categorisation and then proceeds to Normative theory-building (Carlile & Christensen 7). However, I argue below that this Categorisation may be premature: its observations and correlative relationships might reinforce a ‘weak’ Normative theory with limited generalisation. CJ proponents seem to imply that it can be applied anywhere and under any condition—a “statement of causality” that almost makes it a fad (Carlile & Christensen 8). CJ that relies on Classification and Normative claims will be problematic without a strong grounding in Descriptive observation. To understand what’s potentially at stake for CJ’s future consider the consider the parallel debate about curricula renewal for the Masters of Business Administration in the wake of high-profile corporate collapses such as Enron, Worldcom, HIH and OneTel. The MBA evolved as a sociological and institutional construct to justify management as a profession that is codified, differentiated and has entry barriers (Khurana). This process might partly explain the pushback that some media professionals have to CJ as one alternative. MBA programs faced criticism if they had student cohorts with little business know-how or experiential learning (Mintzberg). Enron’s collapse illustrated the ethical dilemmas and unintended consequences that occurred when “bad theories” were implemented (Ghoshal). Professional journalists are aware of this: MBA-educated managers challenged the “craft” tradition in the early 1980s (Underwood). This meant that journalism’s ‘self-image’ (Morgan; Smith) is intertwined with managerial anxieties about media conglomerates in highly competitive markets. Ironically, as noted below, Citizen Journalists who adopt a vanguard position vis-a-vis media professionals step into a more complex game with other players. However, current theories have a naïve idealism about CJ’s promise of normative social change in the face of Machiavellian agency in business, the media and politics. 3. Citizen Who? Who is the “citizen” in CJ? What is their self-awareness as a political agent? CJ proponents who use the ‘self-image’ of ‘citizen’ draw on observations from the participatory vision of open source software, peer-to-peer networks, and case studies such as Howard Dean’s 2004 bid for the Democrat Party nominee in the US Presidential election campaign (Trippi). Recent theorists note Alexander Hamilton’s tradition of civic activism (Barlow 178) which links contemporary bloggers with the Federalist Papers and early newspaper pamphlets. One unsurfaced assumption in these observations and correlations is that most bloggers will adopt a coherent political philosophy as informed citizens: a variation on Lockean utilitarianism, Rawlsian liberalism or Nader consumer activism. To date there is little discussion about how political philosophy could deepen CJ’s ‘self-image’: how to critically evaluate sources, audit and investigation processes, or strategies to deal with elites, deterrence and power. For example, although bloggers kept Valerie Plame’s ‘outing’ as a covert intelligence operative highly visible in the issues-attention cycle, it was agenda-setting media like The New York Times who the Bush Administration targeted to silence (Pearlstine). To be viable, CJ needs to evolve beyond a new media populism, perhaps into a constructivist model of agency, norms and social change (Finnemore). 4. Citizen Journalism as New Media Populism Several “precursor trends” foreshadowed CJ notably the mid-1990s interest in “cool-hunting” by new media analysts and subculture marketeers (Gibson; Gladwell). Whilst this audience focus waned with the 1995-2000 dotcom bubble it resurfaced in CJ and publisher Tim O’Reilly’s Web 2.0 vision. Thus, CJ might be viewed as new media populism that has flourished with the Web 2.0 boom. Yet if the boom becomes a macroeconomic bubble (Gross; Spar) then CJ could be written off as a “silver bullet” that ultimately failed to deliver on its promises (Brooks, Jr.). The reputations of uncritical proponents who adopted a “true believer” stance would also be damaged (Hoffer). This risk is evident if CJ is compared with a parallel trend that shares its audience focus and populist view: day traders and technical analysts who speculate on financial markets. This parallel trend provides an alternative discipline in which the populism surfaced in an earlier form (Carlile & Christensen 12). Fidelity’s Peter Lynch argues that stock pickers can use their Main Street knowledge to beat Wall Street by exploiting information asymmetries (Lynch & Rothchild). Yet Lynch’s examples came from the mid-1970s to early 1980s when indexed mutual fund strategies worked, before deregulation and macroeconomic volatility. A change in the Web 2.0 boom might similarly trigger a reconsideration of Citizen Journalism. Hedge fund maven Victor Niederhoffer contends that investors who rely on technical analysis are practicing a Comtean religion (Niederhoffer & Kenner 72-74) instead of Efficient Market Hypothesis traders who use statistical arbitrage to deal with ‘random walks’ or Behavioural Finance experts who build on Amos Tversky and Daniel Kahneman’s Prospect Theory (Kahneman & Tversky). Niederhoffer’s deeper point is that technical analysts’ belief that the “trend is your friend” is no match for the other schools, despite a mini-publishing industry and computer trading systems. There are also ontological and epistemological differences between the schools. Similarly, CJ proponents who adopt a ‘Professional Amateur’ or ‘Pro-Am’ stance (Leadbeater & Miller) may face a similar gulf when making comparisons with professional journalists and the production environments in media organisations. CJ also thrives as new media populism because of institutional vested interests. When media conglomerates cut back on cadetships and internships CJ might fill the market demand as one alternative. New media programs at New York University and others can use CJ to differentiate themselves from “hyperlocal” competitors (Christensen; Slywotzky; Christensen, Curtis & Horn). This transforms CJ from new media populism to new media institution. 5. Parallels: Event-driven & Civic Journalism For new media programs, CJ builds on two earlier traditions: the Event-driven journalism of crises like the 1991 Gulf War (Wark) and the Civic Journalism school that emerged in the 1960s social upheavals. Civic Journalism’s awareness of minorities and social issues provides the character ethic and political philosophy for many Citizen Journalists. Jay Rosen and others suggest that CJ is the next-generation heir to Civic Journalism, tracing a thread from the 1968 Chicago Democratic Convention to IndyMedia’s coverage of the 1999 “Battle in Seattle” (Rosen). Rosen’s observation could yield an interesting historiography or genealogy. Events such as the Southeast Asian tsunami on 26 December 2004 or Al Qaeda’s London bombings on 7 July 2005 are cited as examples of CJ as event-driven journalism and “pro-am collaboration” (Kolodzy 229-230). Having covered these events and Al Qaeda’s attacks on 11th September 2001, I have a slightly different view: this was more a variation on “first responder” status and handicam video footage that journalists have sourced for the past three decades when covering major disasters. This different view means that the “salience of categories” used to justify CJ and “pro-am collaboration” these events does not completely hold. Furthermore, when Citizen Journalism proponents tout Flickr and Wikipedia as models of real-time media they are building on a broader phenomenon that includes CNN’s Gulf War coverage and Bloomberg’s dominance of financial news (Loomis). 6. The Mergers & Acquisitions Scenario CJ proponents often express anxieties about the resilience of their outlets in the face of predatory venture capital firms who initiate Mergers & Acquisitions (M&A) activities. Ironically, these venture capital firms have core competencies and expertise in the event-driven infrastructure and real-time media that CJ aspires to. Sequoia Capital and other venture capital firms have evaluative frameworks that likely surpass Carlile & Christensen in sophistication, and they exploit parallels, information asymmetries and market populism. Furthermore, although venture capital firms such as Union Street Ventures have funded Web 2.0 firms, they are absent from the explanations of some theorists, whose examples of Citizen Journalism and Web 2.0 success may be the result of survivorship bias. Thus, the venture capital market remains an untapped data source for researchers who want to evaluate the impact of CJ outlets and institutions. The M&A scenario further problematises CJ in several ways. First, CJ is framed as “oppositional” to traditional media, yet this may be used as a stratagem in a game theory framework with multiple stakeholders. Drexel Burnham Lambert’s financier Michael Milken used market populism to sell ‘high-yield’ or ‘junk’ bonds to investors whilst disrupting the Wall Street establishment in the late 1980s (Curtis) and CJ could fulfil a similar tactical purpose. Second, the M&A goal of some Web 2.0 firms could undermine the participatory goals of a site’s community if post-merger integration fails. Jason Calacanis’s sale of Weblogs, Inc to America Online in 2005 and MSNBC’s acquisition of Newsvine on 5 October 2007 (Newsvine) might be success stories. However, this raises issues of digital “property rights” if you contribute to a community that is then sold in an M&A transaction—an outcome closer to business process outsourcing. Third, media “buzz” can create an unrealistic vision when a CJ site fails to grow beyond its start-up phase. Backfence.com’s demise as a “hyperlocal” initiative (Caverly) is one cautionary event that recalls the 2000 dotcom crash. The M&A scenarios outlined above are market dystopias for CJ purists. The major lesson for CJ proponents is to include other market players in hypotheses about causation and correlation factors. 7. ‘Pro-Ams’ & Professional Journalism’s Crisis CJ emerged during a period when Professional Journalism faced a major crisis of ‘self-image’. The Demos report The Pro-Am Revolution (Leadbeater & Miller) popularised the notion of ‘professional amateurs’ which some CJ theorists adopt to strengthen their categorisation. In turn, this triggers a response from cultural theorists who fear bloggers are new media’s barbarians (Keen). I concede Leadbeater and Miller have identified an important category. However, how some CJ theorists then generalise from ‘Pro-Ams’ illustrates the danger of ‘weak’ theory referred to above. Leadbeater and Miller’s categorisation does not really include a counter-view on the strengths of professionals, as illustrated in humanistic consulting (Block), professional service firms (Maister; Maister, Green & Galford), and software development (McConnell). The signs of professionalism these authors mention include a commitment to learning and communal verification, mastery of a discipline and domain application, awareness of methodology creation, participation in mentoring, and cultivation of ethical awareness. Two key differences are discernment and quality of attention, as illustrated in how the legendary Hollywood film editor Walter Murch used Apple’s Final Cut Pro software to edit the 2003 film Cold Mountain (Koppelman). ‘Pro-Ams’ might not aspire to these criteria but Citizen Journalists shouldn’t throw out these standards, either. Doing so would be making the same mistake of overconfidence that technical analysts make against statistical arbitrageurs. Key processes—fact-checking, sub-editing and editorial decision-making—are invisible to the end-user, even if traceable in a blog or wiki publishing system, because of the judgments involved. One post-mortem insight from Assignment Zero was that these processes were vital to create the climate of authenticity and trust to sustain a Citizen Journalist community (Howe). CJ’s trouble with “objectivity” might also overlook some complexities, including the similarity of many bloggers to “noise traders” in financial markets and to op-ed columnists. Methodologies and reportage practices have evolved to deal with the objections that CJ proponents raise, from New Journalism’s radical subjectivity and creative non-fiction techniques (Wolfe & Johnson) to Precision Journalism that used descriptive statistics (Meyer). Finally, journalism frameworks could be updated with current research on how phenomenological awareness shapes our judgments and perceptions (Thompson). 8. Strategic Execution For me, one of CJ’s major weaknesses as a new media theory is its lack of “rich description” (Geertz) about the strategic execution of projects. As Disinfo.com site editor I encountered situations ranging from ‘denial of service’ attacks and spam to site migration, publishing systems that go offline, and ensuring an editorial consistency. Yet the messiness of these processes is missing from CJ theories and accounts. Theories that included this detail as “second-order interactions” (Carlile & Christensen 13) would offer a richer view of CJ. Many CJ and Web 2.0 projects fall into the categories of mini-projects, demonstration prototypes and start-ups, even when using a programming language such as Ajax or Ruby on Rails. Whilst the “bootstrap” process is a benefit, more longitudinal analysis and testing needs to occur, to ensure these projects are scalable and sustainable. For example, South Korea’s OhmyNews is cited as an exemplar that started with “727 citizen reporters and 4 editors” and now has “38,000 citizen reporters” and “a dozen editors” (Kolodzy 231). How does OhmyNews’s mix of hard and soft news change over time? Or, how does OhmyNews deal with a complex issue that might require major resources, such as security negotiations between North and South Korea? Such examples could do with further research. We need to go beyond “the vision thing” and look at the messiness of execution for deeper observations and counterintuitive correlations, to build new descriptive theories. 9. Future Research This essay argues that CJ needs re-evaluation. Its immediate legacy might be to splinter ‘journalism’ into micro-trends: Washington University’s Steve Boriss proclaims “citizen journalism is dead. Expert journalism is the future.” (Boriss; Mensching). The half-lives of such micro-trends demand new categorisations, which in turn prematurely feeds the theory-building cycle. Instead, future researchers could reinvigorate 21st century journalism if they ask deeper questions and return to the observation stage of building descriptive theories. In closing, below are some possible questions that future researchers might explore: Where are the “rich descriptions” of journalistic experience—“citizen”, “convergent”, “digital”, “Pro-Am” or otherwise in new media? How could practice-based approaches inform this research instead of relying on espoused theories-in-use? What new methodologies could be developed for CJ implementation? What role can the “heroic” individual reporter or editor have in “the swarm”? Do the claims about OhmyNews and other sites stand up to longitudinal observation? Are the theories used to justify Citizen Journalism’s normative stance (Rheingold; Surowiecki; Pesce) truly robust generalisations for strategic execution or do they reflect the biases of their creators? How could developers tap the conceptual dimensions of information technology innovation (Shasha) to create the next Facebook, MySpace or Wikipedia? References Argyris, Chris, and Donald Schon. Theory in Practice. San Francisco: Jossey-Bass Publishers, 1976. Barlow, Aaron. The Rise of the Blogosphere. Westport, CN: Praeger Publishers, 2007. Block, Peter. Flawless Consulting. 2nd ed. San Francisco, CA: Jossey-Bass/Pfeiffer, 2000. Boriss, Steve. “Citizen Journalism Is Dead. Expert Journalism Is the Future.” The Future of News. 28 Nov. 2007. 20 Feb. 2008 http://thefutureofnews.com/2007/11/28/citizen-journalism-is-dead- expert-journalism-is-the-future/>. Brooks, Jr., Frederick P. The Mythical Man-Month: Essays on Software Engineering. Rev. ed. Reading, MA: Addison-Wesley Publishing Company, 1995. Campbell, Vincent. Information Age Journalism: Journalism in an International Context. New York: Arnold, 2004. Carlile, Paul R., and Clayton M. Christensen. “The Cycles of Building Theory in Management Research.” Innosight working paper draft 6. 6 Jan. 2005. 19 Feb. 2008 http://www.innosight.com/documents/Theory%20Building.pdf>. Caverly, Doug. “Hyperlocal News Site Takes A Hit.” WebProNews.com 6 July 2007. 19 Feb. 2008 http://www.webpronews.com/topnews/2007/07/06/hyperlocal-news- sites-take-a-hit>. Chenoweth, Neil. Virtual Murdoch: Reality Wars on the Information Superhighway. Sydney: Random House Australia, 2001. Christensen, Clayton M. The Innovator’s Dilemma: When New Technologies Cause Great Firms to Fail. Boston, MA: Harvard Business School Press, 1997. Christensen, Clayton M., Curtis Johnson, and Michael Horn. Disrupting Class: How Disruptive Innovation Will Change the Way the World Learns. New York: McGraw-Hill, 2008. Curtis, Adam. The Mayfair Set. London: British Broadcasting Corporation, 1999. Etherington, Kim. Becoming a Reflexive Researcher: Using Ourselves in Research. London: Jessica Kingsley Publishers, 2004. Festinger, Leon. A Theory of Cognitive Dissonance. Stanford, CA: Stanford University Press, 1962. Feyerabend, Paul. Against Method. 3rd ed. London: Verso, 1993. Finnemore, Martha. National Interests in International Society. Ithaca, NY: Cornell University Press, 1996. Geertz, Clifford. The Interpretation of Cultures. New York: Basic Books, 1973. Ghoshal, Sumantra. “Bad Management Theories Are Destroying Good Management Practices.” Academy of Management Learning & Education 4.1 (2005): 75-91. Gibson, William. Pattern Recognition. London: Viking, 2003. Gladwell, Malcolm. “The Cool-Hunt.” The New Yorker Magazine 17 March 1997. 20 Feb. 2008 http://www.gladwell.com/1997/1997_03_17_a_cool.htm>. Gross, Daniel. Pop! Why Bubbles Are Great for the Economy. New York: Collins, 2007. Hoffer, Eric. The True Believer. New York: Harper, 1951. Howe, Jeff. “Did Assignment Zero Fail? A Look Back, and Lessons Learned.” Wired News 16 July 2007. 19 Feb. 2008 http://www.wired.com/techbiz/media/news/2007/07/assignment_ zero_final?currentPage=all>. Kahneman, Daniel, and Amos Tversky. Choices, Values and Frames. Cambridge: Cambridge UP, 2000. Keen, Andrew. The Cult of the Amateur. New York: Doubleday Currency, 2007. Khurana, Rakesh. From Higher Aims to Hired Hands. Princeton, NJ: Princeton UP, 2007. Kolodzy, Janet. Convergence Journalism: Writing and Reporting across the News Media. Oxford: Rowman & Littlefield, 2006. Koppelman, Charles. Behind the Seen: How Walter Murch Edited Cold Mountain Using Apple’s Final Cut Pro and What This Means for Cinema. Upper Saddle River, NJ: New Rider, 2004. Leadbeater, Charles, and Paul Miller. “The Pro-Am Revolution”. London: Demos, 24 Nov. 2004. 19 Feb. 2008 http://www.demos.co.uk/publications/proameconomy>. Loomis, Carol J. “Bloomberg’s Money Machine.” Fortune 5 April 2007. 20 Feb. 2008 http://money.cnn.com/magazines/fortune/fortune_archive/2007/04/16/ 8404302/index.htm>. Lynch, Peter, and John Rothchild. Beating the Street. Rev. ed. New York: Simon & Schuster, 1994. Maister, David. True Professionalism. New York: The Free Press, 1997. Maister, David, Charles H. Green, and Robert M. Galford. The Trusted Advisor. New York: The Free Press, 2004. Mensching, Leah McBride. “Citizen Journalism on Its Way Out?” SFN Blog, 30 Nov. 2007. 20 Feb. 2008 http://www.sfnblog.com/index.php/2007/11/30/940-citizen-journalism- on-its-way-out>. Meyer, Philip. Precision Journalism. 4th ed. Lanham, MD: Rowman & Littlefield, 2002. McConnell, Steve. Professional Software Development. Boston, MA: Addison-Wesley, 2004. Mintzberg, Henry. Managers Not MBAs. San Francisco, CA: Berrett-Koehler, 2004. Morgan, Gareth. Images of Organisation. Rev. ed. Thousand Oaks, CA: Sage, 2006. Newsvine. “Msnbc.com Acquires Newsvine.” 7 Oct. 2007. 20 Feb. 2008 http://blog.newsvine.com/_news/2007/10/07/1008889-msnbccom- acquires-newsvine>. Niederhoffer, Victor, and Laurel Kenner. Practical Speculation. New York: John Wiley & Sons, 2003. Pearlstine, Norman. Off the Record: The Press, the Government, and the War over Anonymous Sources. New York: Farrar, Straus & Giroux, 2007. Pesce, Mark D. “Mob Rules (The Law of Fives).” The Human Network 28 Sep. 2007. 20 Feb. 2008 http://blog.futurestreetconsulting.com/?p=39>. Rheingold, Howard. Smart Mobs: The Next Social Revolution. Cambridge MA: Basic Books, 2002. Rosen, Jay. What Are Journalists For? Princeton NJ: Yale UP, 2001. Shasha, Dennis Elliott. Out of Their Minds: The Lives and Discoveries of 15 Great Computer Scientists. New York: Copernicus, 1995. Slywotzky, Adrian. Value Migration: How to Think Several Moves Ahead of the Competition. Boston, MA: Harvard Business School Press, 1996. Smith, Steve. “The Self-Image of a Discipline: The Genealogy of International Relations Theory.” Eds. Steve Smith and Ken Booth. International Relations Theory Today. Cambridge, UK: Polity Press, 1995. 1-37. Spar, Debora L. Ruling the Waves: Cycles of Discovery, Chaos and Wealth from the Compass to the Internet. New York: Harcourt, 2001. Surowiecki, James. The Wisdom of Crowds. New York: Doubleday, 2004. Thompson, Evan. Mind in Life: Biology, Phenomenology, and the Sciences of Mind. Cambridge, MA: Belknap Press, 2007. Trippi, Joe. The Revolution Will Not Be Televised. New York: ReganBooks, 2004. Underwood, Doug. When MBA’s Rule the Newsroom. New York: Columbia University Press, 1993. Wark, McKenzie. Virtual Geography: Living with Global Media Events. Bloomington IN: Indiana UP, 1994. Wolfe, Tom, and E.W. Johnson. The New Journalism. New York: Harper & Row, 1973. Citation reference for this article MLA Style Burns, Alex. "Select Issues with New Media Theories of Citizen Journalism." M/C Journal 10.6/11.1 (2008). echo date('d M. Y'); ?> <http://journal.media-culture.org.au/0804/10-burns.php>. APA Style Burns, A. (Apr. 2008) "Select Issues with New Media Theories of Citizen Journalism," M/C Journal, 10(6)/11(1). Retrieved echo date('d M. Y'); ?> from <http://journal.media-culture.org.au/0804/10-burns.php>.

“Journalists have to begin a new type of journalism, sometimes being the guide on the side of the civic conversation as well as the filter and gatekeeper.” (Kolodzy 218) “In many respects, citizen journalism is simply public journalism removed from the journalism profession.” (Barlow 181) 1. Citizen Journalism — The Latest Innovation? New Media theorists such as Dan Gillmor, Henry Jenkins, Jay Rosen and Jeff Howe have recently touted Citizen Journalism (CJ) as the latest innovation in 21st century journalism. “Participatory journalism” and “user-driven journalism” are other terms to describe CJ, which its proponents argue is a disruptive innovation (Christensen) to the agenda-setting media institutions, news values and “objective” reportage. In this essay I offer a “contrarian” view, informed by two perspectives: (1) a three-stage model of theory-building (Carlile & Christensen) to evaluate the claims made about CJ; and (2) self-reflexive research insights (Etherington) from editing the US-based news site Disinformation between November 1999 and February 2008. New media theories can potentially create “cognitive dissonance” (Festinger) when their explanations of CJ practices are compared with what actually happens (Feyerabend). First I summarise Carlile & Christensen’s model and the dangers of “bad theory” (Ghoshal). Next I consider several problems in new media theories about CJ: the notion of ‘citizen’, new media populism, parallels in event-driven and civic journalism, and mergers and acquisitions. Two ‘self-reflexive’ issues are considered: ‘pro-ams’ or ‘professional amateurs’ as a challenge to professional journalists, and CJ’s deployment in new media operations and production environments. Finally, some exploratory questions are offered for future researchers. 2. An Evaluative Framework for New Media Theories on Citizen Journalism Paul Carlile and Clayton M. Christensen’s model offers one framework with which to evaluate new media theories on CJ. This framework is used below to highlight select issues and gaps in CJ’s current frameworks and theories. Carlile & Christensen suggest that robust theory-building emerges via three stages: Descriptive, Categorisation and Normative (Carlile & Christensen). There are three sub-stages in Descriptive theory-building; namely, the observation of phenomena, inductive classification into schemas and taxonomies, and correlative relationships to develop models (Carlile & Christensen 2-5). Once causation is established, Normative theory evolves through deductive logic which is subject to Kuhnian paradigm shifts and Popperian falsifiability (Carlile & Christensen 6). Its proponents situate CJ as a Categorisation or new journalism agenda that poses a Normative challenged and Kuhnian paradigm shift to traditional journalism. Existing CJ theories jump from the Descriptive phase of observations like “smart mobs” in Japanese youth subcultures (Rheingold) to make broad claims for Categorisation such as that IndyMedia, blogs and wiki publishing systems as new media alternatives to traditional media. CJ theories then underpin normative beliefs, values and worldviews. Correlative relationships are also used to differentiate CJ from the demand side of microeconomic analysis, from the top-down editorial models of traditional media outlets, and to adopt a vanguard stance. To support this, CJ proponents cite research on emergent collective behaviour such as the “wisdom of crowds” hypothesis (Surowiecki) or peer-to-peer network “swarms” (Pesce) to provide scientific justification for their Normative theories. However, further evaluative research is needed for three reasons: the emergent collective behaviour hypothesis may not actually inform CJ practices, existing theories may have “correlation not cause” errors, and the link may be due to citation network effects between CJ theorists. Collectively, this research base also frames CJ as an “ought to” Categorisation and then proceeds to Normative theory-building (Carlile & Christensen 7). However, I argue below that this Categorisation may be premature: its observations and correlative relationships might reinforce a ‘weak’ Normative theory with limited generalisation. CJ proponents seem to imply that it can be applied anywhere and under any condition—a “statement of causality” that almost makes it a fad (Carlile & Christensen 8). CJ that relies on Classification and Normative claims will be problematic without a strong grounding in Descriptive observation. To understand what’s potentially at stake for CJ’s future consider the consider the parallel debate about curricula renewal for the Masters of Business Administration in the wake of high-profile corporate collapses such as Enron, Worldcom, HIH and OneTel. The MBA evolved as a sociological and institutional construct to justify management as a profession that is codified, differentiated and has entry barriers (Khurana). This process might partly explain the pushback that some media professionals have to CJ as one alternative. MBA programs faced criticism if they had student cohorts with little business know-how or experiential learning (Mintzberg). Enron’s collapse illustrated the ethical dilemmas and unintended consequences that occurred when “bad theories” were implemented (Ghoshal). Professional journalists are aware of this: MBA-educated managers challenged the “craft” tradition in the early 1980s (Underwood). This meant that journalism’s ‘self-image’ (Morgan; Smith) is intertwined with managerial anxieties about media conglomerates in highly competitive markets. Ironically, as noted below, Citizen Journalists who adopt a vanguard position vis-a-vis media professionals step into a more complex game with other players. However, current theories have a naïve idealism about CJ’s promise of normative social change in the face of Machiavellian agency in business, the media and politics. 3. Citizen Who? Who is the “citizen” in CJ? What is their self-awareness as a political agent? CJ proponents who use the ‘self-image’ of ‘citizen’ draw on observations from the participatory vision of open source software, peer-to-peer networks, and case studies such as Howard Dean’s 2004 bid for the Democrat Party nominee in the US Presidential election campaign (Trippi). Recent theorists note Alexander Hamilton’s tradition of civic activism (Barlow 178) which links contemporary bloggers with the Federalist Papers and early newspaper pamphlets. One unsurfaced assumption in these observations and correlations is that most bloggers will adopt a coherent political philosophy as informed citizens: a variation on Lockean utilitarianism, Rawlsian liberalism or Nader consumer activism. To date there is little discussion about how political philosophy could deepen CJ’s ‘self-image’: how to critically evaluate sources, audit and investigation processes, or strategies to deal with elites, deterrence and power. For example, although bloggers kept Valerie Plame’s ‘outing’ as a covert intelligence operative highly visible in the issues-attention cycle, it was agenda-setting media like The New York Times who the Bush Administration targeted to silence (Pearlstine). To be viable, CJ needs to evolve beyond a new media populism, perhaps into a constructivist model of agency, norms and social change (Finnemore). 4. Citizen Journalism as New Media Populism Several “precursor trends” foreshadowed CJ notably the mid-1990s interest in “cool-hunting” by new media analysts and subculture marketeers (Gibson; Gladwell). Whilst this audience focus waned with the 1995-2000 dotcom bubble it resurfaced in CJ and publisher Tim O’Reilly’s Web 2.0 vision. Thus, CJ might be viewed as new media populism that has flourished with the Web 2.0 boom. Yet if the boom becomes a macroeconomic bubble (Gross; Spar) then CJ could be written off as a “silver bullet” that ultimately failed to deliver on its promises (Brooks, Jr.). The reputations of uncritical proponents who adopted a “true believer” stance would also be damaged (Hoffer). This risk is evident if CJ is compared with a parallel trend that shares its audience focus and populist view: day traders and technical analysts who speculate on financial markets. This parallel trend provides an alternative discipline in which the populism surfaced in an earlier form (Carlile & Christensen 12). Fidelity’s Peter Lynch argues that stock pickers can use their Main Street knowledge to beat Wall Street by exploiting information asymmetries (Lynch & Rothchild). Yet Lynch’s examples came from the mid-1970s to early 1980s when indexed mutual fund strategies worked, before deregulation and macroeconomic volatility. A change in the Web 2.0 boom might similarly trigger a reconsideration of Citizen Journalism. Hedge fund maven Victor Niederhoffer contends that investors who rely on technical analysis are practicing a Comtean religion (Niederhoffer & Kenner 72-74) instead of Efficient Market Hypothesis traders who use statistical arbitrage to deal with ‘random walks’ or Behavioural Finance experts who build on Amos Tversky and Daniel Kahneman’s Prospect Theory (Kahneman & Tversky). Niederhoffer’s deeper point is that technical analysts’ belief that the “trend is your friend” is no match for the other schools, despite a mini-publishing industry and computer trading systems. There are also ontological and epistemological differences between the schools. Similarly, CJ proponents who adopt a ‘Professional Amateur’ or ‘Pro-Am’ stance (Leadbeater & Miller) may face a similar gulf when making comparisons with professional journalists and the production environments in media organisations. CJ also thrives as new media populism because of institutional vested interests. When media conglomerates cut back on cadetships and internships CJ might fill the market demand as one alternative. New media programs at New York University and others can use CJ to differentiate themselves from “hyperlocal” competitors (Christensen; Slywotzky; Christensen, Curtis & Horn). This transforms CJ from new media populism to new media institution. 5. Parallels: Event-driven & Civic Journalism For new media programs, CJ builds on two earlier traditions: the Event-driven journalism of crises like the 1991 Gulf War (Wark) and the Civic Journalism school that emerged in the 1960s social upheavals. Civic Journalism’s awareness of minorities and social issues provides the character ethic and political philosophy for many Citizen Journalists. Jay Rosen and others suggest that CJ is the next-generation heir to Civic Journalism, tracing a thread from the 1968 Chicago Democratic Convention to IndyMedia’s coverage of the 1999 “Battle in Seattle” (Rosen). Rosen’s observation could yield an interesting historiography or genealogy. Events such as the Southeast Asian tsunami on 26 December 2004 or Al Qaeda’s London bombings on 7 July 2005 are cited as examples of CJ as event-driven journalism and “pro-am collaboration” (Kolodzy 229-230). Having covered these events and Al Qaeda’s attacks on 11th September 2001, I have a slightly different view: this was more a variation on “first responder” status and handicam video footage that journalists have sourced for the past three decades when covering major disasters. This different view means that the “salience of categories” used to justify CJ and “pro-am collaboration” these events does not completely hold. Furthermore, when Citizen Journalism proponents tout Flickr and Wikipedia as models of real-time media they are building on a broader phenomenon that includes CNN’s Gulf War coverage and Bloomberg’s dominance of financial news (Loomis). 6. The Mergers & Acquisitions Scenario CJ proponents often express anxieties about the resilience of their outlets in the face of predatory venture capital firms who initiate Mergers & Acquisitions (M&A) activities. Ironically, these venture capital firms have core competencies and expertise in the event-driven infrastructure and real-time media that CJ aspires to. Sequoia Capital and other venture capital firms have evaluative frameworks that likely surpass Carlile & Christensen in sophistication, and they exploit parallels, information asymmetries and market populism. Furthermore, although venture capital firms such as Union Street Ventures have funded Web 2.0 firms, they are absent from the explanations of some theorists, whose examples of Citizen Journalism and Web 2.0 success may be the result of survivorship bias. Thus, the venture capital market remains an untapped data source for researchers who want to evaluate the impact of CJ outlets and institutions. The M&A scenario further problematises CJ in several ways. First, CJ is framed as “oppositional” to traditional media, yet this may be used as a stratagem in a game theory framework with multiple stakeholders. Drexel Burnham Lambert’s financier Michael Milken used market populism to sell ‘high-yield’ or ‘junk’ bonds to investors whilst disrupting the Wall Street establishment in the late 1980s (Curtis) and CJ could fulfil a similar tactical purpose. Second, the M&A goal of some Web 2.0 firms could undermine the participatory goals of a site’s community if post-merger integration fails. Jason Calacanis’s sale of Weblogs, Inc to America Online in 2005 and MSNBC’s acquisition of Newsvine on 5 October 2007 (Newsvine) might be success stories. However, this raises issues of digital “property rights” if you contribute to a community that is then sold in an M&A transaction—an outcome closer to business process outsourcing. Third, media “buzz” can create an unrealistic vision when a CJ site fails to grow beyond its start-up phase. Backfence.com’s demise as a “hyperlocal” initiative (Caverly) is one cautionary event that recalls the 2000 dotcom crash. The M&A scenarios outlined above are market dystopias for CJ purists. The major lesson for CJ proponents is to include other market players in hypotheses about causation and correlation factors. 7. ‘Pro-Ams’ & Professional Journalism’s Crisis CJ emerged during a period when Professional Journalism faced a major crisis of ‘self-image’. The Demos report The Pro-Am Revolution (Leadbeater & Miller) popularised the notion of ‘professional amateurs’ which some CJ theorists adopt to strengthen their categorisation. In turn, this triggers a response from cultural theorists who fear bloggers are new media’s barbarians (Keen). I concede Leadbeater and Miller have identified an important category. However, how some CJ theorists then generalise from ‘Pro-Ams’ illustrates the danger of ‘weak’ theory referred to above. Leadbeater and Miller’s categorisation does not really include a counter-view on the strengths of professionals, as illustrated in humanistic consulting (Block), professional service firms (Maister; Maister, Green & Galford), and software development (McConnell). The signs of professionalism these authors mention include a commitment to learning and communal verification, mastery of a discipline and domain application, awareness of methodology creation, participation in mentoring, and cultivation of ethical awareness. Two key differences are discernment and quality of attention, as illustrated in how the legendary Hollywood film editor Walter Murch used Apple’s Final Cut Pro software to edit the 2003 film Cold Mountain (Koppelman). ‘Pro-Ams’ might not aspire to these criteria but Citizen Journalists shouldn’t throw out these standards, either. Doing so would be making the same mistake of overconfidence that technical analysts make against statistical arbitrageurs. Key processes—fact-checking, sub-editing and editorial decision-making—are invisible to the end-user, even if traceable in a blog or wiki publishing system, because of the judgments involved. One post-mortem insight from Assignment Zero was that these processes were vital to create the climate of authenticity and trust to sustain a Citizen Journalist community (Howe). CJ’s trouble with “objectivity” might also overlook some complexities, including the similarity of many bloggers to “noise traders” in financial markets and to op-ed columnists. Methodologies and reportage practices have evolved to deal with the objections that CJ proponents raise, from New Journalism’s radical subjectivity and creative non-fiction techniques (Wolfe & Johnson) to Precision Journalism that used descriptive statistics (Meyer). Finally, journalism frameworks could be updated with current research on how phenomenological awareness shapes our judgments and perceptions (Thompson). 8. Strategic Execution For me, one of CJ’s major weaknesses as a new media theory is its lack of “rich description” (Geertz) about the strategic execution of projects. As Disinfo.com site editor I encountered situations ranging from ‘denial of service’ attacks and spam to site migration, publishing systems that go offline, and ensuring an editorial consistency. Yet the messiness of these processes is missing from CJ theories and accounts. Theories that included this detail as “second-order interactions” (Carlile & Christensen 13) would offer a richer view of CJ. Many CJ and Web 2.0 projects fall into the categories of mini-projects, demonstration prototypes and start-ups, even when using a programming language such as Ajax or Ruby on Rails. Whilst the “bootstrap” process is a benefit, more longitudinal analysis and testing needs to occur, to ensure these projects are scalable and sustainable. For example, South Korea’s OhmyNews is cited as an exemplar that started with “727 citizen reporters and 4 editors” and now has “38,000 citizen reporters” and “a dozen editors” (Kolodzy 231). How does OhmyNews’s mix of hard and soft news change over time? Or, how does OhmyNews deal with a complex issue that might require major resources, such as security negotiations between North and South Korea? Such examples could do with further research. We need to go beyond “the vision thing” and look at the messiness of execution for deeper observations and counterintuitive correlations, to build new descriptive theories. 9. Future Research This essay argues that CJ needs re-evaluation. Its immediate legacy might be to splinter ‘journalism’ into micro-trends: Washington University’s Steve Boriss proclaims “citizen journalism is dead. Expert journalism is the future.” (Boriss; Mensching). The half-lives of such micro-trends demand new categorisations, which in turn prematurely feeds the theory-building cycle. Instead, future researchers could reinvigorate 21st century journalism if they ask deeper questions and return to the observation stage of building descriptive theories. In closing, below are some possible questions that future researchers might explore: Where are the “rich descriptions” of journalistic experience—“citizen”, “convergent”, “digital”, “Pro-Am” or otherwise in new media?How could practice-based approaches inform this research instead of relying on espoused theories-in-use?What new methodologies could be developed for CJ implementation?What role can the “heroic” individual reporter or editor have in “the swarm”?Do the claims about OhmyNews and other sites stand up to longitudinal observation?Are the theories used to justify Citizen Journalism’s normative stance (Rheingold; Surowiecki; Pesce) truly robust generalisations for strategic execution or do they reflect the biases of their creators?How could developers tap the conceptual dimensions of information technology innovation (Shasha) to create the next Facebook, MySpace or Wikipedia? References Argyris, Chris, and Donald Schon. Theory in Practice. San Francisco: Jossey-Bass Publishers, 1976. Barlow, Aaron. The Rise of the Blogosphere. Westport, CN: Praeger Publishers, 2007. Block, Peter. Flawless Consulting. 2nd ed. San Francisco, CA: Jossey-Bass/Pfeiffer, 2000. Boriss, Steve. “Citizen Journalism Is Dead. Expert Journalism Is the Future.” The Future of News. 28 Nov. 2007. 20 Feb. 2008 < http://thefutureofnews.com/2007/11/28/citizen-journalism-is-dead- expert-journalism-is-the-future/ >. Brooks, Jr., Frederick P. The Mythical Man-Month: Essays on Software Engineering. Rev. ed. Reading, MA: Addison-Wesley Publishing Company, 1995. Campbell, Vincent. Information Age Journalism: Journalism in an International Context. New York: Arnold, 2004. Carlile, Paul R., and Clayton M. Christensen. “The Cycles of Building Theory in Management Research.” Innosight working paper draft 6. 6 Jan. 2005. 19 Feb. 2008 < http://www.innosight.com/documents/Theory%20Building.pdf >. Caverly, Doug. “Hyperlocal News Site Takes A Hit.” WebProNews.com 6 July 2007. 19 Feb. 2008 < http://www.webpronews.com/topnews/2007/07/06/hyperlocal-news- sites-take-a-hit >. Chenoweth, Neil. Virtual Murdoch: Reality Wars on the Information Superhighway. Sydney: Random House Australia, 2001. Christensen, Clayton M. The Innovator’s Dilemma: When New Technologies Cause Great Firms to Fail. Boston, MA: Harvard Business School Press, 1997. Christensen, Clayton M., Curtis Johnson, and Michael Horn. Disrupting Class: How Disruptive Innovation Will Change the Way the World Learns. New York: McGraw-Hill, 2008. Curtis, Adam. The Mayfair Set. London: British Broadcasting Corporation, 1999. Etherington, Kim. Becoming a Reflexive Researcher: Using Ourselves in Research. London: Jessica Kingsley Publishers, 2004. Festinger, Leon. A Theory of Cognitive Dissonance. Stanford, CA: Stanford University Press, 1962. Feyerabend, Paul. Against Method. 3rd ed. London: Verso, 1993. Finnemore, Martha. National Interests in International Society. Ithaca, NY: Cornell University Press, 1996. Geertz, Clifford. The Interpretation of Cultures. New York: Basic Books, 1973. Ghoshal, Sumantra. “Bad Management Theories Are Destroying Good Management Practices.” Academy of Management Learning & Education 4.1 (2005): 75-91. Gibson, William. Pattern Recognition. London: Viking, 2003. Gladwell, Malcolm. “The Cool-Hunt.” The New Yorker Magazine 17 March 1997. 20 Feb. 2008 < http://www.gladwell.com/1997/1997_03_17_a_cool.htm >. Gross, Daniel. Pop! Why Bubbles Are Great for the Economy. New York: Collins, 2007. Hoffer, Eric. The True Believer. New York: Harper, 1951. Howe, Jeff. “Did Assignment Zero Fail? A Look Back, and Lessons Learned.” Wired News 16 July 2007. 19 Feb. 2008 < http://www.wired.com/techbiz/media/news/2007/07/assignment_ zero_final?currentPage=all >. Kahneman, Daniel, and Amos Tversky. Choices, Values and Frames. Cambridge: Cambridge UP, 2000. Keen, Andrew. The Cult of the Amateur. New York: Doubleday Currency, 2007. Khurana, Rakesh. From Higher Aims to Hired Hands. Princeton, NJ: Princeton UP, 2007. Kolodzy, Janet. Convergence Journalism: Writing and Reporting across the News Media. Oxford: Rowman & Littlefield, 2006. Koppelman, Charles. Behind the Seen: How Walter Murch Edited Cold Mountain Using Apple’s Final Cut Pro and What This Means for Cinema. Upper Saddle River, NJ: New Rider, 2004. Leadbeater, Charles, and Paul Miller. “The Pro-Am Revolution”. London: Demos, 24 Nov. 2004. 19 Feb. 2008 < http://www.demos.co.uk/publications/proameconomy >. Loomis, Carol J. “Bloomberg’s Money Machine.” Fortune 5 April 2007. 20 Feb. 2008 < http://money.cnn.com/magazines/fortune/fortune_archive/2007/04/16/ 8404302/index.htm >. Lynch, Peter, and John Rothchild. Beating the Street. Rev. ed. New York: Simon & Schuster, 1994. Maister, David. True Professionalism. New York: The Free Press, 1997. Maister, David, Charles H. Green, and Robert M. Galford. The Trusted Advisor. New York: The Free Press, 2004. Mensching, Leah McBride. “Citizen Journalism on Its Way Out?” SFN Blog, 30 Nov. 2007. 20 Feb. 2008 < http://www.sfnblog.com/index.php/2007/11/30/940-citizen-journalism- on-its-way-out >. Meyer, Philip. Precision Journalism. 4th ed. Lanham, MD: Rowman & Littlefield, 2002. McConnell, Steve. Professional Software Development. Boston, MA: Addison-Wesley, 2004. Mintzberg, Henry. Managers Not MBAs. San Francisco, CA: Berrett-Koehler, 2004. Morgan, Gareth. Images of Organisation. Rev. ed. Thousand Oaks, CA: Sage, 2006. Newsvine. “Msnbc.com Acquires Newsvine.” 7 Oct. 2007. 20 Feb. 2008 < http://blog.newsvine.com/_news/2007/10/07/1008889-msnbccom- acquires-newsvine >. Niederhoffer, Victor, and Laurel Kenner. Practical Speculation. New York: John Wiley & Sons, 2003. Pearlstine, Norman. Off the Record: The Press, the Government, and the War over Anonymous Sources. New York: Farrar, Straus & Giroux, 2007. Pesce, Mark D. “Mob Rules (The Law of Fives).” The Human Network 28 Sep. 2007. 20 Feb. 2008 < http://blog.futurestreetconsulting.com/?p=39 >. Rheingold, Howard. Smart Mobs: The Next Social Revolution. Cambridge MA: Basic Books, 2002. Rosen, Jay. What Are Journalists For? Princeton NJ: Yale UP, 2001. Shasha, Dennis Elliott. Out of Their Minds: The Lives and Discoveries of 15 Great Computer Scientists. New York: Copernicus, 1995. Slywotzky, Adrian. Value Migration: How to Think Several Moves Ahead of the Competition. Boston, MA: Harvard Business School Press, 1996. Smith, Steve. “The Self-Image of a Discipline: The Genealogy of International Relations Theory.” Eds. Steve Smith and Ken Booth. International Relations Theory Today. Cambridge, UK: Polity Press, 1995. 1-37. Spar, Debora L. Ruling the Waves: Cycles of Discovery, Chaos and Wealth from the Compass to the Internet. New York: Harcourt, 2001. Surowiecki, James. The Wisdom of Crowds. New York: Doubleday, 2004. Thompson, Evan. Mind in Life: Biology, Phenomenology, and the Sciences of Mind. Cambridge, MA: Belknap Press, 2007. Trippi, Joe. The Revolution Will Not Be Televised. New York: ReganBooks, 2004. Underwood, Doug. When MBA’s Rule the Newsroom. New York: Columbia University Press, 1993. Wark, McKenzie. Virtual Geography: Living with Global Media Events. Bloomington IN: Indiana UP, 1994. Wolfe, Tom, and E.W. Johnson. The New Journalism. New York: Harper & Row, 1973.

If Continental social theory emerges from a climate of intensely cold winters and short mild summers, how does Australia (or any nation defined by its large masses of aridity) function as an environment in which to produce critical theory and new knowledge? Climate and weather are intrinsic to ambience, but what impact might they have on the conditions of producing academic work? How is ambience relevant to thinking and writing and research? Is there an ambient epistemology? This paper argues that the ambient is an unacknowledged factor in the production of critical thinking, and draws on examples of academics locating their writing conditions as part of their thinking. This means paying attention to the embodied work of thinking, and so I locate myself in order to explore what it might mean to acknowledge the conditions of intellectual work. Consequently I dwell on the impact of heat and light as qualities specific to where I work, but (following Bolt) I also argue that they are terms that are historically associated with new knowledge. Language, then, is already a factor in shaping the way we can think through such conditions, and the narratives available to write about them. Working these conditions into critical narratives may involve mobilising fictional tropes, and may not always be ambient, but they are potent in the academic imaginary and impact the ways in which we can think through location. Present Tense As I sit in Perth right now in a balmy 27 degrees Celsius with the local afternoon sea-breeze (fondly known as the Fremantle Doctor) clearing the stuffiness and humidity of the day, environmental conditions are near perfect for the end of summer. I barely notice them. Not long ago though, it was over 40 degrees for three days in a row. These were the three days I had set aside to complete an academic paper, the last days available before the university opened and normal work would resume. I’d arranged to have the place to myself, but I hadn’t arranged for cooling technologies. As I immersed myself in photocopies and textbooks the intellectual challenges and excitement were my preoccupation. It was hot, but I was almost unreceptive to recognising the discomforts of the weather until sweat began to drip onto pages and keyboards. A break in the afternoon for a swim at the local beach was an opportunity to clarify and see the bigger picture, and as the temperature began to slide into the evening cool it was easier to stay up late working and then sleep in late. I began to work around the weather. What impact does this have on thinking and writing? I remember it as a haze. The paper though, still seems clear and reasoned. My regimen might be read as working despite the weather, but I wonder if the intensity of the heat extends thinking in different directions—to go places where I wouldn’t have imagined in an ambiently cooled office (if I had one). The conditions of the production of knowledge are often assumed to be static, stable and uninteresting. Even if your work is located in exciting Other places, the ‘writing up’ is expected to happen ‘back home’, after the extra-ordinary places of fieldwork. It can be written in the present tense, for a more immediate reading experience, but the writing cannot always happen at the same time as the events being described, so readers accept the use of present tense as a figment of grammar that cannot accommodate the act of writing. When a writer becomes aware of their surroundings and articulates those conditions into their narrative, the reader is lifted out of the narrative into a metaframe; out of the body of writing and into the extra-diegetic. In her essay “Me and My Shadow” (1987), Jane Tompkins writes as if ‘we’ the reader are in the present with her as she makes connections between books, experiences, memories, feelings, and she also provides us with a writing scene in which to imagine her in the continuous present: It is a beautiful day here in North Carolina. The first day that is both cool and sunny all summer. After a terrible summer, first drought, then heat-wave, then torrential rain, trees down, flooding. Now, finally, beautiful weather. A tree outside my window just brushed by red, with one fully red leaf. (This is what I want you to see. A person sitting in stockinged feet looking out of her window – a floor to ceiling rectangle filled with green, with one red leaf. The season poised, sunny and chill, ready to rush down the incline into autumn. But perfect, and still. Not going yet.) (128)This is a strategy, part of the aesthetics and politics of Tompkins’s paper which argues for the way the personal functions in intellectual thinking and writing even when we don’t recognise or acknowledge it. A little earlier she characterises herself as vulnerable because of the personal/professional nexus: I don’t know how to enter the debate [over epistemology] without leaving everything else behind – the birds outside my window, my grief over Janice, just myself as a person sitting here in stockinged feet, a little bit chilly because the windows are open, and thinking about going to the bathroom. But not going yet. (126)The deferral of autumn and going to the bathroom is linked through the final phrase, “not going yet”. This is a kind of refrain that draws attention to the aesthetic architecture of locating the self, and yet the reference to an impending toilet trip raised many eyebrows. Nancy Millar comments that “these passages invoke that moment in writing when everything comes together in a fraction of poise; that fragile moment the writing in turn attempts to capture; and that going to the bathroom precisely, will end” (6). It spoils the moment. The aesthetic green scene with one red leaf is ruptured by the impending toilet scene. Or perhaps it is the intimacy of bodily function that disrupts the ambient. And yet the moment is fictional anyway. There must surely always be some fiction involved when writing about the scene of writing, as writing usually takes more than one take. Gina Mercer takes advantage of this fictional function in a review of a collection of women’s poetry. Noting the striking discursive differences between the editor’s introduction and the poetry collected in the volume, she suggestively accounts for this by imagining the conditions under which the editor might have been working: I suddenly begin to imagine that she wrote the introduction sitting at her desk in twin-set and pearls, her feet constricted by court shoes – but that the selection took place at home with her lying on a large beautifully-linened bed bestrewn by a cat and the poems… (4)These imaginary conditions, Mercer implies, impact on the ways we do our intellectual work, or perhaps different kinds of work require different conditions. Mercer not only imagines the editor at work, but also suggests her own preferred workspace when she mentions that “the other issue I’ve been pondering as I lay on my bed in a sarong (yes it’s hot here already) reading this anthology, has been the question of who reads love poetry these days?” (4). Placing herself as reader (of an anthology of love poetry) on the bed in a sarong in a hot climate partially accounts for the production of the thinking around this review, but probably doesn’t include the writing process. Mercer’s review is written in epistolary form, signaling an engagement with ‘the personal’, and yet that awareness of form and setting performs a doubling function in which scenes are set and imagination is engaged and yet their veracity doesn’t seem important, and may even be part of the fiction of form. It’s the idea of working leisurely that gains traction in this review. Despite the capacity for fiction, I want to believe that Jane Tompkins was writing in her study in North Carolina next to a full-length window looking out onto a tree. I’m willing to suspend my disbelief and imagine her writing in this place and time. Scenes of Writing Physical conditions are often part of mythologising a writer. Sylvia Plath wrote the extraordinary collection of poems that became Ariel during the 1962/63 London winter, reputed to have been the coldest for over a hundred years (Gifford 15). The cold weather is given a significant narrative role in the intensity of her writing and her emotional desperation during that period. Sigmund Freud’s writing desk was populated with figurines from his collection of antiquities looking down on his writing, a scene carefully replicated in the Freud Museum in London and reproduced in postcards as a potent staging of association between mythology, writing and psychoanalysis (see Burke 2006). Writer’s retreats at the former residences of writers (like Varuna at the former home of Eleanor Dark in the Blue Mountains, and the Katherine Susannah Pritchard Centre in the hills outside of Perth) memorialise the material conditions in which writers wrote. So too do pilgrimages to the homes of famous writers and the tourism they produce in which we may gaze in wonder at the ordinary places of such extraordinary writing. The ambience of location is one facet of the conditions of writing. When I was a doctoral student reading Continental feminist philosophy, I used anything at hand to transport myself into their world. I wrote my dissertation mostly in Townsville in tropical Queensland (and partly in Cairns, even more tropical), where winter is blue skies and mid-twenties in temperature but summers are subject to frequent build-ups in pressure systems, high humidity, no breeze and some cyclones. There was no doubt that studying habits were affected by the weather for a student, if not for all the academics who live there. Workplaces were icily air-conditioned (is this ambient?) but outside was redolent with steamy tropical evenings, hot humid days, torrential downpours. When the weather breaks there is release in blood pressure accompanying barometer pressure. I was reading contemporary Australian literature alongside French feminist theories of subjectivity and their relation through écriture féminine. The European philosophical and psychoanalytic tradition and its exquisitely radical anti-logical writing of Irigaray, Cixous and Kristeva seemed alien to my tropical environs but perversely seductive. In order to get ‘inside’ the theoretical arguments, my strategy was to interpolate myself into their imagined world of writing, to emulate their imagined conditions. Whenever my friend went on a trip, I caretook her 1940s unit that sat on a bluff and looked out over the Coral Sea, all whitewashed and thick stone, and transformed it into a French salon for my intellectual productivity. I played Edith Piaf and Grace Jones, went to the grocer at the bottom of the hill every day for fresh food and the French patisserie for baguettes and croissants. I’d have coffee brewing frequently, and ate copious amounts of camembert and chocolate. The Townsville flat was a Parisian salon with French philosophers conversing in my head and between the piles of book lying on the table. These binges of writing were extraordinarily productive. It may have been because of the imagined Francophile habitus (as Bourdieu understands it); or it may have been because I prepared for the anticipated period of time writing in a privileged space. There was something about adopting the fictional romance of Parisian culture though that appealed to the juxtaposition of doing French theory in Townsville. It intensified the difference but interpolated me into an intellectual imaginary. Derrida’s essay, “Freud and the Scene of Writing”, promises to shed light on Freud’s conditions of writing, and yet it is concerned moreover with the metaphoric or rather intellectual ‘scene’ of Freudian ideas that form the groundwork of Derrida’s own corpus. Scenic, or staged, like Tompkins’s framed window of leaves, it looks upon the past as a ‘moment’ of intellectual ferment in language. Peggy Kamuf suggests that the translation of this piece of Derrida’s writing works to cover over the corporeal banishment from the scene of writing, in a move that privileges the written trace. In commenting, Kamuf translates Derrida herself: ‘to put outside and below [metre dehors et en bas] the body of the written trace [le corps de la trace écrite].’ Notice also the latter phrase, which says not the trace of the body but the body of the trace. The trace, what Derrida but before him also Freud has called trace or Spur, is or has a body. (23)This body, however, is excised, removed from the philosophical and psychoanalytic imaginary Kamuf argues. Australian philosopher Elizabeth Grosz contends that the body is “understood in terms that attempt to minimize or ignore altogether its formative role in the production of philosophical values – truth, knowledge, justice” (Volatile 4): Philosophy has always considered itself a discipline concerned primarily or exclusively with ideas, concepts, reason, judgment – that is, with terms clearly framed by the concept of mind, terms which marginalize or exclude considerations of the body. As soon as knowledge is seen as purely conceptual, its relation to bodies, the corporeality of both knowers and texts, and the ways these materialities interact, must become obscure. (Volatile 4)In the production of knowledge then, the corporeal knowing writing body can be expected to interact with place, with the ambience or otherwise in which we work. “Writing is a physical effort,” notes Cixous, and “this is not said often enough” (40). The Tense Present Conditions have changed here in Perth since the last draft. A late summer high pressure system is sitting in the Great Australian Bite pushing hot air across the desert and an equally insistent ridge of low pressure sits off the Indian Ocean, so the two systems are working against each other, keeping the weather hot, still, tense, taut against the competing forces. It has been nudging forty degrees for a week. The air conditioning at work has overloaded and has been set to priority cooling; offices are the lowest priority. A fan blasts its way across to me, thrumming as it waves its head from one side to the other as if tut-tutting. I’m not consumed with intellectual curiosity the way I was in the previous heatwave; I’m feeling tired, and wondering if I should just give up on this paper. It will wait for another time and journal. There’s a tension with chronology here, with what’s happening in the present, but then Rachel Blau DuPlessis argues that the act of placing ideas into language inevitably produces that tension: Chronology is time depicted as travelling (more or less) in a (more or less) forward direction. Yet one can hardly write a single sentence straight; it all rebounds. Even its most innocent first words – A, The, I, She, It – teem with heteroglossias. (16)“Sentences structure” DuPlessis points out, and grammar necessitates development, chronological linearity, which affects the possibilities for narrative. “Cause and effect affect” DuPlessis notes (16), as do Cixous and Irigaray before her. Nevertheless we must press on. And so I leave work and go for a swim, bring my core body temperature down, and order a pot of tea from the beach café while I read Barbara Bolt in the bright afternoon light. Bolt is a landscape painter who has spent some time in Kalgoorlie, a mining town 800km east of Perth, and notes the ways light is used as a metaphor for visual illumination, for enlightening, and yet in Kalgoorlie light is a glare which, far from illuminating, blinds. In Kalgoorlie the light is dangerous to the body, causing cancers and cataracts but also making it difficult to see because of its sheer intensity. Bolt makes an argument for the Australian light rupturing European thinking about light: Visual practice may be inconceivable without a consideration of light, but, I will argue, it is equally ‘inconceivable’ to practice under European notions of light in the ‘glare’ of the Australian sun. Too much light on matter sheds no light on the matter. (204)Bolt frequently equates the European notions of visual art practice that, she claims, Australians still operate under, with concomitant concepts of European philosophy, aesthetics and, I want to add, epistemology. She is particularly adept at noting the material impact of Australian conditions on the body, arguing that, the ‘glare’ takes apart the Enlightenment triangulation of light, knowledge, and form. In fact, light becomes implicated bodily, in the facts of the matter. My pterygiums and sun-beaten skin, my mother and father’s melanomas, and the incidence of glaucoma implicate the sun in a very different set of processes. From my optic, light can no longer be postulated as the catalyst that joins objects while itself remaining unbent and unimplicated … (206).If new understandings of light are generated in Australian conditions of working, surely heat is capable of refiguring dominant European notions as well. Heat is commonly associated with emotions and erotics, even through ideas: heated debate, hot topics and burning issues imply the very latest and most provocative discussions, sizzling and mercurial. Heat has a material affect on corporeality also: dehydrating, disorienting, dizzying and burning. Fuzzy logic and bent horizons may emerge. Studies show that students learn best in ambient temperatures (Pilman; Graetz), but I want to argue that thought and writing can bend in other dimensions with heat. Tensions build in blood pressure alongside isometric bars. Emotional and intellectual intensities merge. Embodiment meets epistemology. This is not a new idea; feminist philosophers like Donna Haraway have been emphasizing the importance of situated knowledge and partial perspective for decades as a methodology that challenges universalism and creates a more ethical form of objectivity. In 1987 Haraway was arguing for politics and epistemologies of location, positioning, and situating, where partiality and not universality is the condition of being heard to make rational knowledge claims. These are claims on people’s lives. I am arguing for the view from a body, always a complex contradictory structuring and structured body versus the view from above, from nowhere, from simplicity. (Haraway 588)Working in intellectual conditions when the specificities of ambience is ignored, is also, I suggest, to work in a privileged space, in which there are no distractions like the weather. It is also to work ‘from nowhere, from simplicity’ in Haraway’s words. It is to write from within the pure imaginary space of the intellect. But to write in, and from, weather conditions no matter what they might be is to acknowledge the affect of being-in-the-world, to recognise an ontological debt that is embodied and through which we think. I want to make a claim for the radical conditions under which writing can occur outside of the ambient, as I sit here sweating over theory again. Drawing attention to the corporeal conditions of the scene of writing is a way of situating knowledge and partial perspective: if I were in Hobart where snow still lies on Mount Wellington I may well have a different perspective, but the metaphors of ice and cold also need transforming into productive and generative conditions of particularised knowledge. To acknowledge the location of knowledge production suggests more of the forces at work in particular thinking, as a bibliography indicates the shelf of books that have inflected the written product. This becomes a relation of immanence rather than transcendence between the subject and thought, whereby thinking can be understood as an act, an activity, or even activism of an agent. This is proposed by Elizabeth Grosz in her later work where she yokes together the “jagged edges” (Time 165) of Deleuze and Irigaray’s work in order to reconsider the “future of thought”. She calls for a revision of meaning, as Bolt does, but this time in regard to thought itself—and the task of philosophy—asking whether it is possible to develop an understanding of thought that refuses to see thought as passivity, reflection, contemplation, or representation, and instead stresses its activity, how and what it performs […] can we deromanticize the construction of knowledges and discourses to see them as labor, production, doing? (Time 158)If writing is to be understood as a form of activism it seems fitting to conclude here with one final image: of Gloria Anzaldua’s computer, at which she invites us to imagine her writing her book Borderlands/La Frontera: The New Mestiza (1987), a radical Chicana vision for postcolonial theory. Like Grosz, Anzaldua is intent on undoing the mind/body split and the language through which the labour of thinking can be articulated. This is where she writes her manifesto: I sit here before my computer, Amiguita, my altar on top of the monitor with the Virgen de Coatalopeuh candle and copal incense burning. My companion, a wooden serpent staff with feathers, is to my right while I ponder the ways metaphor and symbol concretize the spirit and etherealize the body. (75) References Anzaldua, Gloria. Borderlands/La Frontera: The New Mestiza. San Francisco: Aunt Lute Books, 1987. Bolt, Barbara. “Shedding Light for the Matter.” Hypatia 15.2 (2000): 202-216. Bourdieu, Pierre. The Logic of Practice. Cambridge: Polity, 1990. [1980 Les Edition de Minuit] Burke, Janine. The Gods of Freud: Sigmund Freud’s Art Collection. Milsons Point: Knopf, 2006. Cixous, Hélène, and Mireille Calle-Gruber. Rootprints: Memory and Life Writing. London: Routledge, 1997. [1994 Photos de Racine]. Derrida, Jacques, and Jeffrey Mehlman. "Freud and the Scene of Writing." Yale French Studies 48 (1972): 74-117. DuPlessis, Rachel Blau. Blue Studios: Poetry and Its Cultural Work. Tuscaloosa: Alabama UP, 2006. Gifford, Terry. Ted Hughes. Abingdon: Routledge, 2009. Graetz, Ken A. “The Psychology of Learning Environments.” Educause Review 41.6 (2006): 60-75. Grosz, Elizabeth. Volatile Bodies: Towards a Corporeal Feminism. St Leonards: Allen & Unwin, 1994. Grosz, Elizabeth. Time Travels: Feminism, Nature, Power. St Leonards: Allen & Unwin, 2005. Haraway, Donna. “Situated Knowledges: The Science Question in Feminism and the Privilege of Partial Perspective.” Feminist Studies 14.3 (1988): 575-99. Kamuf, Peggy. “Outside in Analysis.” Mosaic 42.4 (2009): 19-34. Mercer, Gina. “The Days of Love Are Lettered.” Review of The Oxford Book of Australian Love Poems, ed. Jennifer Strauss. LiNQ 22.1 (1995): 135-40. Miller, Nancy K. Getting Personal: Feminist Occasions and Other Autobiographical Acts. New York: Routledge, 1991. Pilman, Mary S. “The Effects of Air Temperature Variance on Memory Ability.” Loyola University Clearinghouse, 2001. ‹http://clearinghouse.missouriwestern.edu/manuscripts/306.php›. Tompkins, Jane. “Me and My Shadow.” New Literary History 19.1 (1987): 169-78.