Journal articles on the topic 'Wind rose diagram'

The slender and flexible characteristics make Runyang Suspension Bridge (RSB) sensitive to the wind actions. In order to obtain reliable statistical wind characteristics and monitor the wind environment at the bridge site, two anemometers are included in the structural health monitoring system (SHMS) to collect extensive wind data. In this paper, the recorded real-time wind data are analyzed in detail to acquire the wind rose diagram, mean wind speed and direction, turbulence intensity, turbulence integral scale, and power spectral density (PSD). Three strong wind events including Typhoon Matsa, Typhoon Khanun and Northern wind are comparatively analyzed to show the inhomogeneous wind characteristics. And the measured wind characteristics are compared with the recommended values in current specification of China. The analytical results show that the wind speed and wind direction at RSB site are greatly influenced by the subtropical monsoon climate and typhoon climate. And the traditional known rules concerning turbulence intensity are not proper for strong winds, while the rules can be validated by long-term monitored data. Meanwhile, the recommended values of turbulence integral scale by current specification are suitable for long-term monitored wind, but the adaptability to strong wind is still defective. In addition, the measured along-wind spectra match generally well with the commonly used PSDs of turbulence. However, more researches are still needed to refine current PSDs of turbulence to perfectly satisfy with the measured spectrum. The conclusions can provide references for the wind-resistant analysis of RSB and structures in similar areas.

Neste estudo é analisada a relação entre distúrbio ondulatório de leste, formação de linha de instabilidade e volume de chuva no estado da Paraíba. O distúrbio atuou no período de 15 a 17 de julho de 2011. Sua propagação e chegada ao Nordeste do Brasil foram detectadas em diagrama tempo-longitude da componente meridional do vento no nível de 600 hPa. Sua atuação se caracterizou pelo desenvolvimento de convecção profunda linearmente organizada, numa estrutura de linha de instabilidade, na noite dos dias 15 e 16. Perfis termodinâmicos mostram um elevado teor de umidade na baixa troposfera, abaixo de uma inversão térmica de subsidência típica da área dos ventos alísios, antes da formação das primeiras células de convecção profunda. O desenvolvimento e organização da convecção profunda na noite do dia 15 ocasionou o umedecimento de toda a troposfera, uma condição que se manteve até o dia 17. Ventos com intensidade moderada do quadrante sudeste da rosa dos ventos, na baixa e média troposfera, precederam a formação de linha de instabilidade na noite do dia 15. Ventos fracos e com direção variável foram observados nos dias 16 e 17. Houve grandes volumes de chuva no leste da Paraíba. Nas duas maiores cidades do estado os totais pluviométricos foram elevados: 80 mm em João Pessoa no dia 16, e 110 mm em Campina Grande no dia 17. A B S T R A C T In this study the relationship between wavelike easterly disturbance, squall line formation, and precipitation on Paraíba state is analyzed. The disturbance influenced the state from 15 to 17 July 2011. Its propagation and arrival on Northeast Brazil were detected on a time-longitude diagram of the meridional wind component at the 600 hPa level. The disturbance was characterized by the development of linearly organized deep convection, a squall line structure, on the night of the 15th and 16th. Thermodynamic profiles highlighted high moisture content in the lower troposphere, underneath a subsidence inversion typical of the trade winds area, prior to the formation of the first deep convective cells. The deep convection development and organization on the night of the 15th led to the moistening of the entire troposphere, a condition that remained up to the 17th. Winds of moderate intensity on the southeast quadrant of the wind rose, in the low and middle troposphere, preceded the squall line formation on the night of the 15th. Weak winds with variable direction were observed on the 16th and 17th. Large rainfall amounts fell on eastern Paraíba. On the two largest cities of the state rainfall volumes were very high: 83 mm in João Pessoa on the 16th, and 110 mm in Campina Grande on the 17th. Key words: rainfall, extreme event, thermodynamic structure, Northeast Brazil.

Ammonia (NH3) is an important precursor for particulate secondary aerosol formation. This study was conducted to evaluate the applicability of a passive sampler (PAS) for estimating the NH3 emission from chemical fertilizer application (85 kg-N·ha−1) at field scale and to compare the results with a chamber system for the calculation of NH3 emission flux at lab scale. The application of chemical fertilizer increased the ambient NH3 concentration from 7.11 to 16.87 μg·m−3. Also, the ambient NH3 concentration measured by the PAS was found to be highly influenced by not only the chemical fertilizer application but also the weather (temperature and rainfall). Wind rose diagram data can be useful for understanding the distribution of ambient NH3 concentration. In the case of a chamber with few environmental variables, NH3 was emitted very quickly in the early stages and gradually decreased, whereas it was delayed at intervals of about one week at the site. It was found that daily temperature range, atmospheric disturbance by wind and rainfall, changes in soil moisture, and the presence of a flooded water table were the main influencing factors. The PAS data and the chamber system data were observed to have significant differences in spatial-temporal scale. In order to reduce the gap, it seems to be necessary to further develop a chamber system, in order to improve the precision of field analysis and to strengthen the connection between experimental results.

The paper presents the methodology and results of the sea state statistics development for the middle Adriatic Sea. The study is based on the World Waves Atlas containing data of sea states in the Adriatic Sea calibrated using different satellite missions and numerical wave model simulations during the period of past 23 years. Wave scatter diagram and wave rose at the location in the middle Adriatic Sea are derived from the data. The 3-parametric Weibull distribution and the log-normal distribution for significant wave height and peak spectral periods respectively, are fitted through the data in the World Waves Atlas. Based on available data, the relation between wind speed and wave height is established by regression analysis. Comparison of the relationship between the significant wave height and peak spectral period is performed between the data from the World Waves Atlas and the Tabain’s wave spectrum, frequently used for sea states in the Adriatic Sea. Finally, the most probable extreme sea states for different return periods are calculated and results are compared with another relevant study for the long-term prediction of sea states in the Adriatic Sea.

Autonomous land yachts can play a major role in the context of environmental monitoring, namely, in open, flat, windy regions, such as iced planes or sandy shorelines. This work addresses the design, modeling, and simulation of a land yacht probe equipped with a rigid free-rotating wing sail and tail flap. The wing was designed with a symmetrical airfoil and dimensions to provide the necessary thrust to displace the vehicle. Specifically, it proposes a novel design and simulation method for free rotating wing sail autonomous land yachts. The simulation relies on the Gazebo simulator together with the Robotic Operating System (ROS) middleware. It uses a modified Gazebo aerodynamics plugin to generate the lift and drag forces and the yawing moment, two newly created plugins, one to act as a wind sensor and the other to set the wing flap angular position, and the 3D model of the land yacht created with Fusion 360. The wing sail aligns automatically to the wind direction and can be set to any given angle of attack, stabilizing after a few seconds. Finally, the obtained polar diagram characterizes the expected sailing performance of the land yacht. The described method can be adopted to evaluate different wing sail configurations, as well as control techniques, for autonomous land yachts.

Abstract A 3D hydrodynamic model [Regional Ocean Model System (ROMS)] is used to investigate how axial wind influences stratification and to explore the associated longitudinal salt transport in partially mixed estuaries. The model is configured to represent a straight estuarine channel connecting to a shelf sea. The results confirm that wind straining of the along-channel salinity gradient exerts an important control on stratification. Two governing parameters are identified: the Wedderburn number (W) defined as the ratio of wind stress to axial baroclinic pressure gradient force, and the ratio of an entrainment depth to water depth (hs/H). Here W controls the effectiveness of wind straining, which promotes increases (decreases) in stratification during down-estuary (up-estuary) wind. The ratio hs/H determines the portion of the water column affected by direct wind mixing. While stratification is always reduced by up-estuary wind, stratification shows an increase-then-decrease transition when down-estuary wind stress increases. Such transition is a result of the competition between wind straining and direct wind mixing. A horizontal Richardson number modified to include wind straining/mixing is shown to reasonably represent the transition, and a regime diagram is proposed to classify the wind’s role on stratification. Mechanisms driving salt flux during axial wind events are also explored. At the onset and end of the wind events, barotropic adjustment drives strong transient salt fluxes. Net salt flux is controlled by the responses of subtidal shear dispersion to wind forcing. Moderate down-estuary winds enhance subtidal shear dispersion, whereas up-estuary winds always reduce it. Supporting observations from upper Chesapeake Bay are presented.

Abstract. Vector quantities, e.g., vector winds, play an extremely important role in climate systems. The energy and water exchanges between different regions are strongly dominated by wind, which in turn shapes the regional climate. Thus, how well climate models can simulate vector fields directly affects model performance in reproducing the nature of a regional climate. This paper devises a new diagram, termed the vector field evaluation (VFE) diagram, which is a generalized Taylor diagram and able to provide a concise evaluation of model performance in simulating vector fields. The diagram can measure how well two vector fields match each other in terms of three statistical variables, i.e., the vector similarity coefficient, root mean square length (RMSL), and root mean square vector difference (RMSVD). Similar to the Taylor diagram, the VFE diagram is especially useful for evaluating climate models. The pattern similarity of two vector fields is measured by a vector similarity coefficient (VSC) that is defined by the arithmetic mean of the inner product of normalized vector pairs. Examples are provided, showing that VSC can identify how close one vector field resembles another. Note that VSC can only describe the pattern similarity, and it does not reflect the systematic difference in the mean vector length between two vector fields. To measure the vector length, RMSL is included in the diagram. The third variable, RMSVD, is used to identify the magnitude of the overall difference between two vector fields. Examples show that the VFE diagram can clearly illustrate the extent to which the overall RMSVD is attributed to the systematic difference in RMSL and how much is due to the poor pattern similarity.

Context. Fast line-driven stellar winds play an important role in the evolution of planetary nebulae, even though they are relatively weak. Aims. We provide global (unified) hot star wind models of central stars of planetary nebulae. The models predict wind structure including the mass-loss rates, terminal velocities, and emergent fluxes from basic stellar parameters. Methods. We applied our wind code for parameters corresponding to evolutionary stages between the asymptotic giant branch and white dwarf phases for a star with a final mass of 0.569 M⊙. We study the influence of metallicity and wind inhomogeneities (clumping) on the wind properties. Results. Line-driven winds appear very early after the star leaves the asymptotic giant branch (at the latest for Teff ≈ 10 kK) and fade away at the white dwarf cooling track (below Teff = 105 kK). Their mass-loss rate mostly scales with the stellar luminosity and, consequently, the mass-loss rate only varies slightly during the transition from the red to the blue part of the Hertzsprung–Russell diagram. There are the following two exceptions to the monotonic behavior: a bistability jump at around 20 kK, where the mass-loss rate decreases by a factor of a few (during evolution) due to a change in iron ionization, and an additional maximum at about Teff = 40−50 kK. On the other hand, the terminal velocity increases from about a few hundreds of km s−1 to a few thousands of km s−1 during the transition as a result of stellar radius decrease. The wind terminal velocity also significantly increases at the bistability jump. Derived wind parameters reasonably agree with observations. The effect of clumping is stronger at the hot side of the bistability jump than at the cool side. Conclusions. Derived fits to wind parameters can be used in evolutionary models and in studies of planetary nebula formation. A predicted bistability jump in mass-loss rates can cause the appearance of an additional shell of planetary nebula.

Aims. Analyses of Galactic late O dwarfs (O8-O9.5V stars) raised the “weak wind problem”: spectroscopic mass-loss rates (Ṁ) are up to two orders of magnitude lower than the theoretical values. We investigated the stellar and wind properties of Galactic late O giants (O8-O9.5III stars). These stars have luminosities log (L⋆ ∕ L⊙) ~ 5.2, which is the critical value (onset of weak winds) proposed in the literature. Methods. We performed a spectroscopic analysis of nine O8-O9.5III stars in the ultraviolet (UV) and optical regions using the model atmosphere code CMFGEN. Results. Stellar luminosities were adopted using calibrations from the literature. Overall, our model spectral energy distributions agree well with the observed ones considering parallaxes from the latest Gaia data release (DR2). The effective temperature derived from the UV region agrees well with the ones from the optical. As expected, the analysis of the Hertzsprung–Russell (HR) diagram shows that our sample is more evolved than late O dwarfs. From the UV region, we found Ṁ ~ 10−8 − 10−9M⊙ yr−1 overall. This is lower by ~0.9 − 2.3 dex than predicted values based on the (global) conservation of energy in the wind. The mass-loss rates predicted from first principles, based on the moving reversing layer theory, agree better with our findings, but it fails to match the spectroscopic Ṁ for the most luminous OB stars. The region of log (L⋆ ∕ L⊙) ~ 5.2 is critical for both sets of predictions in comparison with the spectroscopic mass-loss rates. CMFGEN models with the predicted Ṁ (the former one) fail to reproduce the UV wind lines for all the stars of our sample. We reproduce the observed Hα profiles of four objects with our Ṁ derived from the UV. Hence, low Ṁ values (weak winds) are favored to fit the observations (UV + optical), but discrepancies between the UV and Hα diagnostics remain for some objects. Conclusions. Our results indicate weak winds beyond the O8-9.5V class, since the region of log (L⋆ ∕ L⊙) ~ 5.2 is indeed critical to the weak wind phenomenon. Since O8-O9.5III stars are more evolved than O8-9.5V, evolutionary effects do not seem to play a role in the onset of the weak wind phenomenon. These findings support that the Ṁ (for low luminosity O stars) in use in the majority of modern stellar evolution codes must be severely overestimated up to the end of the H-burning phase. Further investigations must evaluate the consequences of weak winds in terms of physical parameters for massive stars (e.g., angular momentum and CNO surface abundances).

Wild cherry is one of the noble hardwood species that increase the biodiversity of our forests and at the same time it could increase the income for forest owners. The preconditions for achieving these goals are the high quality of stem and appropriate silvicultural management. This means that wild cherry should occupy the main crown layer in the stand. The height/frequency diagram depicts two groups of wild cherry trees in the stand belonging to dominant/codominant and suppressed tree classes. Height periodic increment (measured between the years 2001 and 2007) is significantly (<I>p</I> < 0.01) different in these two groups confirming that there is no transition chance for the trees from the suppressed group to become a part of the main crown layer and play the role of future crop tree. The same is true of the diameter/frequency diagram which also has a two-peak shape remaining also at the end of the surveyed period. Our result suggests that silvicultural care should be focused only on trees belonging to future crop trees.

Perkembangan peristiwa El-Nino Southern Oscillation (ENSO) menunjukkan peran penting bagi Madden-Julian Oscillation (MJO). Variasi angin permukaan (UWND) dan konveksi (OLR) intramusiman yang merupakan komponen dari variabilitas MJO sangat berinteraksi dengan komponen ENSO dalam skala waktu dan ruang. Penelitian ini menggunakan Diagram Hovmueller untuk melihat perambatan konveksi, analisis spektral untuk melihat frekuensi MJO, analisis spektral bilangan gelombang-frekuensi untuk melihat perambatan dan bilangan gelombang zonal, serta analisis spektral silang untuk melihat koherensi serta fase dari konveksi dan angin zonal dengan band-pass filter 20-100 hari. Secara keseluruhan, hasil analisis spektral menunjukkan MJO memiliki frekuensi 30-60 harian. Hasil analisis diagram Hovmueller ketika peristiwa El-Nino lemah (tahun 2004-2005) menjelaskan bahwa ada perambatan konveksi ke timur tetapi hanya terjadi pada awal tahun sangat cepat atau tidak beraturan dan kemudian hilang. Konveksi menunjukkan bilangan gelombang zonal 1 ketika bulan Mei-Okt dan bilangan zonal 1-4 ketika bulan Nov-Apr. Spektrum silang menunjukkan angin zonal mendahului konveksi 1/8 putaran yang berarti ada hubungan fisis antara UWND dan OLR dengan koherensi 0.65 di bilangan zonal 1-2. Ketika peristiwa El-Nino sangat kuat (tahun 1997-1998), diagram Hovmueller menunjukkan tidak adanya perambatan konveksi dari Samudera Hindia ke Pasifik bagian barat. Anomali dan perambatan konveksi sangat kuat pada awal tahun 1997 ketika fase normal dan melemah pada bulan Juli hingga hilang sama sekali seiring meningkatnya El-Nino. konveksi menunjukkan bulan Nov-Apr memiliki nilai spektral yang lebih kuat daripada bulan Mei-Okt. Koherensi menjukkan nilai yang tinggi pada bilangan zonal 1-2 dengan range 0.35-0.65, begitupula angin zonal juga mendahului konveksi sebesar 1/8 putaran. Perubahan signifikan pada MJO terlihat pada perambatan konveksi yang menghilang ketika semakin kuatnya El-Nino. melemahnya MJO, dan frekuensi dari MJO yang menjadi lebih tinggi. Kata Kunci : band-pass filter; Diagram Hovmueller; konveksi; spektrum silang; angin zonal The development of ENSO (El-Nino Southern Oscillation) events hows an important role for MJO (Madden Julian Oscillation). Variation of intraseasonal zonal wind and convection (OLR) are important components of MJO variability which interact with ENSO components in space-time scale. Before processing, data are filtered with Lanczos bandpass filter 20-100 days. This research using Hovmueller diagram to see the propagation of convection and zonal wind, spectral analysis to see MJO frequency, wavenumber-frequency spectra to see propagation of MJO and its zonal wavenumber, and cross-spectrum analysis to see coherence and phase lag between convection and zonal wind. Spectral analysis have shown that MJO have frequency of 30-60 days. During weak El-Nino event (1991-1992), Hovmueller diagram have discovered that there is eastward propagation of convection in the early years but occurs very quickly or irregularly and than dissipated. Convection have zonal wavenumber of 1 when May-Oct and zonal wavenumber of 1-4 when Nov-Apr. Cross-spectrum shows that zonal wind leads convection by 1/8 cycle with coherence 0.65 in zonal wavenumber 1-2. Hovmueller diagram have shown that there are no eastward propagation from Indian Ocean to Western Pacific during strong El-Nino event (1997-1998). Convection and propagation were very strong in early 1997 then weakened in July to disappear altogether as El-Nino strenghtened. Wavenumber-frequency spectra have shown that Nov-Apr convection has weaker value than May-Oct convection. Cross-spectrum shows large coherence in zonal wavenumber 1-2 with range of 0.35-0.65 and zonal wind leads convection by 1/8 cycle. Significant changes in MJO are seen in the disappearance of propagation of convection, weakening of MJO, and higher observed frecuency of MJO as El-Nino activity strengthened. Keywords : band-pass filter; Hovmueller diagram; convection; cross-spectrum; zonal wind

ABSTRACT Symbiotic stars are long-period interacting binaries where the compact object, most commonly a white dwarf, is embedded in the dense stellar wind of an evolved companion star. Ultraviolet and soft X-ray emission of the accretion disc and the nuclear-burning white dwarf plays a major role in shaping the ionization balance of the surrounding wind material, giving rise to the rich line emission. In this paper, we employ two-dimensional photoionization calculations based on the cloudy code to study the ionization state of the circumbinary material in symbiotic systems and to predict their emission-line spectra. Our simulations are parametrized via the orbital parameters of the binary and the wind mass-loss rate of the donor star, while the mass accretion rate, temperature and luminosity of the white dwarf are computed self-consistently. We explore the parameter space of symbiotic binaries and compute luminosities of various astrophysically important emission lines. The line ratios are compared with traditional diagnostic diagrams used to distinguish symbiotic binaries from other types of sources, and it is shown how the binary system parameters shape these diagrams. In the significant part of the parameter space, the wind material is nearly fully ionized, except for the ‘shadow’ behind the donor star, so the white dwarf emission is typically freely escaping the system.

Current observations of the S Dor/LBVs and candidates and the implications for their important role in massive star evolution are reviewed. Recent observations of the cool hypergiants are altering our ideas about their evolutionary state, their atmospheres and winds, and the possible mechanisms for their asymmetric high mass loss episodes which may involve surface activity and magnetic fields. Recent results for IRC+10420, ρ Cas and VY CMa are highlighted. S Dor/LBVs in eruption, and the cool hypergiants in their high mass loss phases with their optically thick winds are not what their apparent spectra and temperatures imply; they are then ‘impostors’ on the H-R diagram. The importance of the very most massive stars, like η Carinae and the ‘supernovae impostors’ are also discussed.

The incorporation of wind energy as a non-conventional energy source has received a lot of attention. The selection of wind turbine (WT) prototypes and their installation based on assessment and analysis is considered as a major problem. This paper focuses on addressing the aforementioned issues through a Weibull distribution technique based on five different methods. The accurate results are obtained by considering the real-time data of a particular site located in the coastal zone of Pakistan. Based on the computations, it is observed that the proposed site has most suitable wind characteristics, low turbulence intensity, wind shear exponent located in a safe region, adequate generation with the most adequate capacity factor and wind potential. The wind potential of the proposed site is explicitly evaluated with the support of wind rose diagrams at different heights. The energy generated by ten different prototypes will suggest the most optimum and implausible WT models. Correspondingly, the most capricious as well as optimal methods are also classified among the five Weibull parameters. Moreover, this study provides a meaningful course of action for the selection of a suitable site, WT prototype and parameters evaluation based on the real-time data for powering local communities.

AbstractMeteorological events affecting the evolution of temperature inversions or cold-air pools in the 1-km-diameter, high-altitude (~1300 m MSL) Grünloch basin in the eastern Alps are investigated using data from lines of temperature dataloggers running up the basin sidewalls, nearby weather stations, and weather charts. Nighttime cold-air-pool events observed from October 2001 to June 2002 are categorized into undisturbed inversion evolution, late buildups, early breakups, mixing events, layered erosion at the inversion top, temperature disturbances occurring in the lower or upper elevations of the pool, and inversion buildup caused by the temporary clearing of clouds. In addition, persistent multiday cold-air pools are sometimes seen. Analyses show that strong winds and cloud cover are the governing meteorological parameters that cause the inversion behavior to deviate from its undisturbed state, but wind direction can also play an important role in the life cycle of the cold-air pools, because it governs the interaction with steep or gentle slopes of the underlying topography. Undisturbed cold-air pools are unusual in the Grünloch basin. A schematic diagram illustrates the different types of cold-air-pool events.

Abstract Relapse acute lymphoblastic leukemia (ALL) is associated with chemotherapy resistance and poor prognosis. Persistent leukemia initiating cells with increased self-renewal capacity, clonal heterogeneity and selection of resistance-driving genetic alterations have been proposed as drivers of leukemia relapse. Gain of function mutations in the 5'-Nucleotidase, Cytosolic II (NT5C2) gene are selectively present in relapsed ALL and confer resistance to chemotherapy with 6-mercaptopurine (6-MP). Yet, the specific mechanisms mediating constitutive activation of NT5C2 remain unknown. Here we performed detailed genetic, enzymatic, structural and functional analyses of relapsed leukemia-associated NT5C2 mutant alleles uncovering previously unrecognized functional heterogeneity in their mechanisms of action. Specifically, detailed nucleotidase assays in the presence of increased concentration of allosteric activators across 10 relapse-associated NT5C2 mutant proteins and analyses of the crystal structures of 7 distinct mutant proteins and wild type NT5C2 in the presence and absence of allosteric factors defined three classes of NT5C2 mutants with distinct mechanisms of action. Class I NT5C2 mutations force an active configuration of the NT5C2 catalytic center in the absence of allosteric activator. In contrast, class II NT5C2 mutations disrupt a novel switch-off mechanism mediated by the dynamic mobilization of the tip region of the arm segment responsible for returning the enzyme to its basal inactive configuration following allosteric activation. Finally, increased allosteric response in the class III p.Gln523* truncating mutation results from loss of the C-terminal acidic tail of NT5C2, which functions as a lock stabilizing the enzyme in its inactive basal configuration. The proposed role of the arm domain region and the C-terminal segment were verified in enzymatic assays incubating wild type NT5C2 with antibodies recognizing these regulatory elements, which phenocopied the increased enzymatic activity and response to allosteric effector of NT5C2 mutations involving these domains. In all, these results identify distinct molecular mechanisms mediating NT5C2 regulation targeted by activating NT5C2 mutant alleles and serve as a framework for the functional annotation of clinically-relevant NT5C2 mutations in relapsed ALL. Finally, the prominent role of the allosteric binding site as critical mediator of the mechanisms mediating thhe increased nucleotidase activity of NT5C2 mutant proteins point to this region as a preferred target for the design of NT5C2 inhibitors for the reversal of chemotherapy resistance in relapsed ALL. Figure 1 Relapse associated NT5C2 mutations and crystal structure of basal and activated wild type human NT5C2. (a) Graphical representation of relapse associated mutations in B-ALL (black) and T-ALL (red).(b-d) In vitro nucleotidase assays assessing the enzymatic activity of (b)class I, (c) class II, and (d)class IIINT5C2 mutations in the presence of increased concentrations of ATP. (e) A Ribbon diagram of the basal structure of wild type NT5C2-X537, displaying the HAD domain (cyan) and its three extensions: N-terminal segment (orange), arm (pink), and C-terminal segment (marine). The mutation sites are depicted as red solid spheres for Cα of each mutated amino acid. The phosphate (yellow for phosphorus) and Mg ions (dark green) are depicted as stick models and solid spheres respectively. (f) A Ribbon diagram of the activated structure of the full-length wild type NT5C2, in which the allosteric helix A (αA) is shown in dark purple. (g,h) Ribbon and surface (for subunit B) depictions of basal and activated dimers of (g) NT5C2-X537 and the (h) full-length, respectively. (i,j) Ribbon diagrams of the basal (i) NT5C2-X537 and activated (j) full-length wild type tetramers, respectively. Figure 1 Figure 1. Disclosures No relevant conflicts of interest to declare.

Ionospheric Weddell Sea anomaly is an inversion of diurnal variation of the electron density in the ionosphere over Antarctic Peninsula, Weddell Sea, and neighbor territories observed during Antarctic summer. This paper aims at analyzing the reaction of the ionosphere during the Weddell Sea anomaly to changes in solar and geomagnetic activity as deduced from the data of vertical sounding of the ionosphere conducted at the Akademik Vernadsky station. The aim is achieved by comparing the monthly median values of the critical frequencies of the ionosphere (foF2) during Weddell Sea anomaly for the years of high and low solar activity; as well as by comparison of median December height-time diagrams (HT-diagrams) of foF2 calculated separately for the time intervals characterized by low or high levels of F10.7 and K indices for the period from 2007 till 2016. It was experimentally demonstrated that the Weddell Sea anomaly depends on the levels of solar ultraviolet flux and local K indices. The biggest nighttime maximum of ionization corresponds to low K indices and high values of F10.7. The most accurate inversion of diurnal variation of electron density in the F region is observed under the low values of K index and low F10.7 flux. The growth of geomagnetic activity decreases the nighttime ionization under both low and high levels of F10.7 fluxes and leads to a blur of the night maximum. Visible virtual heights of maximums increase together with F10.7 independently of the K index level. Blurring of the night maximum can be explained by destruction of the field of thermospheric winds supporting the nighttime anomaly, and/or by increasing role of plasma drifts in comparison with wind impact. The growth of visible virtual height of the nighttime maximum with increasing solar F10.7 flux could be explained by the gain of equatorward thermospheric wind with increasing solar ultraviolet flux that leads to growth of plasma upwelling effect. The Doppler frequency shift of the signals reflected from the ionosphere during nighttime in presence of the Weddell Sea anomaly is close to zero which could be explained by a stable F2 layer formed as a result of dynamic equilibrium between photochemical processes and upward plasma transport.

Abstract Helicopter-borne observations of the impact of turbulent mixing and cloud microphysical properties in shallow trade wind cumuli are presented. The measurements were collected during the Cloud, Aerosol, Radiation and Turbulence in the Trade Wind Regime over Barbados (CARRIBA) project. Basic meteorological parameters (3D wind vector, air temperature, and relative humidity), cloud condensation nuclei concentrations, and cloud microphysical parameters (droplet number, size distribution, and liquid water content) are measured by the Airborne Cloud Turbulence Observation System (ACTOS), which is fixed by a 160-m-long rope underneath a helicopter flying with a true airspeed of approximately 20 m s−1. Clouds at different evolutionary stages were sampled. A total of 300 clouds are classified into actively growing, decelerated, and dissolving clouds. The mixing process of these cloud categories is investigated by correlating the cloud droplet number concentration and cubed droplet mean volume diameter. A significant tendency to more inhomogeneous mixing with increasing cloud lifetime is observed. Furthermore, the mixing process and its effects on droplet number concentration, droplet size, and cloud liquid water content are statistically evaluated. It is found that, in dissolving clouds, liquid water content and droplet number concentration are decreased by about 50% compared to actively growing clouds. Conversely, the droplet size remains almost constant, which can be attributed to the existence of a humid shell around the cloud that prevents cloud droplets from rapid evaporation after entrainment of premoistened air. Moreover, signs of secondary activation are found, which results in a more difficult interpretation of observed mixing diagrams.

Abstract In this paper, a basic-state flow that has a linear, weak meridional shear is used as a mean flow condition to see if the blocking activity is related to the state of the zonal mean flow based upon the envelope soliton theory proposed in Part I. It is found that an isolated coherent structure similar to a dipole block can arise from the resonant interaction between preexisting planetary- and synoptic-scale waves, but its asymmetry, intensity, and persistence depend strongly upon the horizontal shear of the basic-state flow prior to block onset. The cyclonic shear of the basic-state flow not only plays an important role in preventing the eastward spread of block energy, but also provides a strong diffluent flow as a precursor of block flow. In such an environment, a high amplitude dipole anomaly is maintained and the deformed synoptic-scale eddies tend to deflect northward. But the anticyclonic shear of a basic-state flow plays a reverse role, which causes deformed eddies to deflect southward. It is also found that positive westerly wind anomalies at both high and low latitudes and negative anomalies at middle latitudes are maintained by synoptic-scale eddies through the self-interaction of block. In this case, the zonal mean westerly wind is accelerated at high and low latitudes, and decelerated at middle latitudes. Only for a basic state with cyclonic shear is the meridional profile of the zonal mean wind during the onset of a dipole block in agreement with observations. In addition, it can be shown by computing scatter diagrams of potential vorticity against streamfunction in different sheared environments that an eddy-induced isolated block can exhibit a local free-mode characteristic. Two approximately linear functional relationships between potential vorticity and streamfunction are found to be probably attributed to synoptic eddies.

AbstractIf R is a Dedekind domain, then div splits i.e.; the maximal divisible submodule of every R-module M is a direct summand of M. We investigate the status of this result for some finite-dimensional hereditary algebras. We use a torsion theory which permits the existence of torsion-free divisible modules for such algebras. Using this torsion theory we prove that the algebras obtained from extended Coxeter- Dynkin diagrams are the only such hereditary algebras for which div splits. The field of rational functions plays an essential role. The paper concludes with a new type of infinite-dimensional indecomposable module over a finite-dimensional wild hereditary algebra.

In the last few decades, piezoelectric (PZT) materials have played a vital role in the aerospace industry because of their energy harvesting capability. PZT energy harvesters (PEH) absorb the energy from an operational environment and can transform it into useful energy to drive nano/micro-electronic components. In this research work, a PEH based on the flag-flutter mechanism is presented. This mechanism is based on fluid-structure interaction (FSI). The flag is subjected to the axial airflow in the subsonic wind tunnel. The performance evaluation of the harvester and aeroelastic analysis is investigated numerically and experimentally. A novel solution is presented to extract energy from Limit Cycle Oscillations (LCOs) phenomenon by means of PZT transduction. The PZT patch absorbs the flow-induced structural vibrations and transforms it into electrical energy. Furthermore, the optimal resistance and length of the flag is predicted to maximize the energy harvesting. Different configurations of flag i.e., with Aluminium (Al) patch and PZT patch for flutter mode vibration mode are studied numerically and experimentally. The bifurcation diagram is constructed for the experimental campaign for the flutter instability of a cantilevered flag in subsonic wind-tunnel. Moreover, the flutter boundary conditions are analysed for reduced critical velocity and frequency. The designed PZT energy harvester via flag-flutter mechanism is suitable for energy harvesting in aerospace engineering applications to drive wireless sensors. The maximum output power that can be generated from the designed harvester is 6.72 mW and the optimal resistance is predicted to be 0.33 MΩ.

AbstractAnisotropy of magnetic susceptibility (AMS) is a frequently applied method in sedimentology, especially in the determination of the orientation of transport processes. We present an analysis of magnetic fabric (MF) studies on loess. New aspects of fabric development reveal: i) The deposition of the aeolian sediments was controlled by gravity, low-energy transport and local geomorphology, hence no clarified wind direction can be defined. ii) The influence of phyllosilicates is also significant among the magnetic components. iii) While the primary MF is relatively well-defined, the secondary MF is influenced by several processes. The analysis of stereoplots combined with the q—β diagram and photostatistics showed encouraging results during the characterization of various secondary MF such as redeposited MF and pedogenic fabric. iv) Changes in processes from aeolian to water-lain deposition and the increasing transportation energy were reflected by the connection between AMS and observed micro-scale sedimentary features. v) A relationship was obvious between the degree of pedogenesis and the transformation of sedimentary MF into a vertical MF typical for paleosols. vi) The significant role of very fine grained magnetite on the formation of inverse MF could not be excluded.

Context. We have been seeing mounting evidence that the stellar initial mass function (IMF) might extend far beyond the canonical Mi ∼ 100 M⊙ limit, but the impact of such a hypothesis on the chemical enrichment of galaxies is yet to be clarified. Aims. We aim to address this question by analysing the observed abundances of thin- and thick-disc stars in the Milky Way with chemical evolution models that account for the contribution of very massive stars dying as pair instability supernovae. Methods. We built new sets of chemical yields from massive and very massive stars up to Mi ∼ 350 M⊙ by combining the wind ejecta extracted from our hydrostatic stellar evolution models with explosion ejecta from the literature. Using a simple chemical evolution code, we analysed the effects of adopting different yield tables by comparing predictions against observations of stars in the solar vicinity. Results. After several tests, we set our focus on the [O/Fe] ratio that best separates the chemical patterns of the two Milky Way components. We find that with a standard IMF, truncated at Mi ∼ 100 M⊙, we can reproduce various observational constraints for thin-disc stars; however, the same IMF fails to account for the [O/Fe] ratios of thick-disc stars. The best results are obtained by extending the IMF up to Mi = 350 M⊙, while including the chemical ejecta of very massive stars in the form of winds and pair instability supernova (PISN) explosions. Conclusions. Our study indicates that PISN may have played a significant role in shaping the chemical evolution of the thick disc of the Milky Way. Including their chemical yields makes it easier to reproduce not only the level of the α-enhancement, but also the observed slope of thick-disc stars in the [O/Fe] vs. [Fe/H] diagram. The bottom line is that the contribution of very massive stars to the chemical enrichment of galaxies is potentially quite important and should not be neglected in models of chemical evolution.

The barrier to pollination and pollinator assemblage were investigated in Knema attenuata, a dioecious tree species endemic to the Western Ghats of India. It occupies an intermediate canopy stratum of the low and mid-elevation wet evergreen forests. In order to observe floral display, insect foraging and fruit development, four populations of K. attenuata were selected. The population diagram of each population was constructed by marking one female tree as the centre and male trees available at different radii from the female tree. Direct observations and swap net trapping were used to sample insects in the canopy during the flowering season of 2016 and 2017. Knema attenuata exhibited generalised pollination through diverse insects: thysanopterans (thrips), coleopterans (beetles), halictid bees, and dipterans (syrphid and phorid flies), where thrips played the major role. On analysing the floral display, it was found that the male flowers provided no rewards and thus attracted less pollinators than the female flowers. Among the four populations studied, three showed more than 70% fruit setting and the rate of abscission in flowers and young fruits were negligible. One population was without fruit setting and trials on artificial pollination resulted in fruit setting. A very low frequency of seed germination was observed in natural conditions which was enhanced by a seed germinator.

The objective of this paper is to give a rigorous analysis of a stochastic spatial model of producer-consumer systems that has been recently introduced by Kang and the author to understand the role of space in ecological communities in which individuals compete for resources. Each point of the square lattice is occupied by an individual which is characterized by one of two possible types, and updates its type in continuous time at rate 1. Each individual being thought of as a producer and consumer of resources, the new type at each update is chosen at random from a certain interaction neighborhood according to probabilities proportional to the ability of the neighbors to consume the resource produced by the individual to be updated. In addition to giving a complete qualitative picture of the phase diagram of the spatial model, our results indicate that the nonspatial deterministic mean-field approximation of the stochastic process fails to describe the behavior of the system in the presence of local interactions. In particular, we prove that, in the parameter region where the nonspatial model displays bistability, there is a dominant type that wins regardless of its initial density in the spatial model, and that the inclusion of space also translates into a significant reduction of the parameter region where both types coexist.

The objective of this paper is to give a rigorous analysis of a stochastic spatial model of producer-consumer systems that has been recently introduced by Kang and the author to understand the role of space in ecological communities in which individuals compete for resources. Each point of the square lattice is occupied by an individual which is characterized by one of two possible types, and updates its type in continuous time at rate 1. Each individual being thought of as a producer and consumer of resources, the new type at each update is chosen at random from a certain interaction neighborhood according to probabilities proportional to the ability of the neighbors to consume the resource produced by the individual to be updated. In addition to giving a complete qualitative picture of the phase diagram of the spatial model, our results indicate that the nonspatial deterministic mean-field approximation of the stochastic process fails to describe the behavior of the system in the presence of local interactions. In particular, we prove that, in the parameter region where the nonspatial model displays bistability, there is a dominant type that wins regardless of its initial density in the spatial model, and that the inclusion of space also translates into a significant reduction of the parameter region where both types coexist.

Abstract Dematin is a critical component of the membrane junctional complex in red blood cells. It tethers the spectrin cytoskeleton proteins to the membrane and its genetic deletion in mice causes dissociation of the spectrin, actin and β-adducin from the membrane resulting in the collapse of the red blood cells (RBCs). As dematin lacks a transmembrane domain, it is still unclear how this critical component of the junctional complex is anchored to the RBC membrane. Our previous studies have shown that the multi-transmembrane glucose transporter-1 (GLUT1) interacts with dematin and β-adducin in human RBCs, suggesting a potential role for GLUT1 in recruiting dematin to the membrane. However, as mouse RBCs do not express a GLUT1 homologue, an equivalent membrane receptor for dematin and/or adducin in mice remains to be determined. Using multiple in vitro and in vivo biochemical assays, here we demonstrate that the ubiquitously expressed plasma membrane Na+/H+ exchanger, NHE1 (Slc9a1), is one of the receptors for dematin and β-adducin in mature mouse red blood cells. NHE1 directly interacts with the core domain of dematin. Moreover, the dematin headpiece domain mutant S381E, which binds to the core domain with a higher affinity than the wild type, abolished the biochemical interaction between dematin and NHE1. This observation suggests that NHE1 and dematin headpiece domain compete for the same binding site(s) on the core domain. Furthermore, this finding highlights a molecular mechanism whereby an intermolecular switch of dematin regulates its interaction with NHE1 by phosphorylation. Dematin and β-adducin directly interact with NHE1 at its membrane-proximal cytoplasmic domain, which in turn regulates NHE1 activity in response to growth factor stimuli and intracellular pH alterations. Accordingly,we observed an increased cellular sodium content in erythrocytes of dematin headpiece and adducin double knockout mice (DAKO), suggesting a higher NHE1 activity in DAKO erythrocytes. Unlike GLUT1, NHE1 is expressed in both mouse and human RBCs. Thus, our results provide a novel mechanism for linking NHE1 to membrane skeleton and multiple cell signaling pathways through dematin and adducin (Figure 1). Since NHE1 is one of the major regulators of intracellular pH and hypertonic stress, our findings raise the possibility that the dematin-adducin-NHE1 complex may modulate these functions in RBCs as well as in other cell types with broad impact on the regulation of the actin cytoskeleton and cell migration. Figure 1 Dematin and adducin link erythrocyte junctional complex to membrane via multiple receptors. A, WT RBC cytoskeleton. B, Mutant (DAKO) RBC cytoskeleton. Images show a grossly deranged membrane skeleton in DAKO as compared to wild type. Red arrows show enlarged pores and yellow arrows indicate the presence of aggregates. Bars correspond to 0.2 µM. C, Schematic diagram of dematin, adducin, and NHE1 linking the complex to multiple signaling pathways. D, Proposed new model of the erythrocyte junctional complex. Figure 1. Dematin and adducin link erythrocyte junctional complex to membrane via multiple receptors. A, WT RBC cytoskeleton. B, Mutant (DAKO) RBC cytoskeleton. Images show a grossly deranged membrane skeleton in DAKO as compared to wild type. Red arrows show enlarged pores and yellow arrows indicate the presence of aggregates. Bars correspond to 0.2 µM. C, Schematic diagram of dematin, adducin, and NHE1 linking the complex to multiple signaling pathways. D, Proposed new model of the erythrocyte junctional complex. Disclosures No relevant conflicts of interest to declare.

ABSTRACT The Humphreys–Davidson (HD) limit empirically defines a region of high luminosities (log10(L/L⊙) ≳ 5.5) and low effective temperatures ($T_{\rm eff} \lesssim 20 \, {\rm kK}$) on the Hertzsprung–Russell diagram in which hardly any supergiant stars are observed. Attempts to explain this limit through instabilities arising in near- or super-Eddington winds have been largely unsuccessful. Using modern stellar evolution, we aim to re-examine the HD limit, investigating the impact of enhanced mixing on massive stars. We construct grids of stellar evolution models appropriate for the Small Magellanic Cloud (SMC) and Large Magellanic Cloud (LMC), as well as for the Galaxy, spanning various initial rotation rates and convective overshooting parameters. Significantly enhanced mixing apparently steers stellar evolution tracks away from the region of the HD limit. To quantify the excess of overluminous stars in stellar evolution simulations, we generate synthetic populations of massive stars and make detailed comparisons with catalogues of cool ($T_\mathrm{eff} \le 12.5\, \mathrm{kK}$) and luminous (log10(L/L⊙) ≥ 4.7) stars in the SMC and LMC. We find that adjustments to the mixing parameters can lead to agreement between the observed and simulated red supergiant populations, but for hotter supergiants the simulations always overpredict the number of very luminous (log10(L/L⊙) ≥ 5.4) stars compared to observations. The excess of luminous supergiants decreases for enhanced mixing, possibly hinting at an important role mixing has in explaining the HD limit. Still, the HD limit remains unexplained for hotter supergiants.

Purpose. Investigation of the conditions peculiarities of occurrence and rupture deformations of sandstones in outcrops along the right bank of the river Kazenny Torets in the field of the mine “Capital”. Methodology. In this work there were used: traditional structural-geological methods of field research; methods of field tectonophysical research; computer programs “Fabric-8” and “Win-Tensor” for processing field data, building of the stretch rose-diagrams of rupture deformations and reconstructing paleostress fields. Results. The conditions of occurrence of sandstones and their changes in space have been investigated. The systems of tectonic fractures, their mineral filling and influence on the material composition of the sedimentary rocks have been studied. Special tectonophysical studies have been carried out to determine the signs of paleostress fields of different kinematic types and ages.Reconstruction of paleostress fields was carried out using the elements of beding of cracks, grooves and slip lines on their slide mirrors. Several systems of rupture dislocations have been identified based on the results of studies in the hanging wing of the Glubokoyarsky fault. Systems of cracks have been identified, which facilitated the migration of deep-seated solutions with iron compounds. Such solutions changed the composition of sandstones in the wings of ruptured dislocations and formed zones of rock saturation with iron hydroxides up to 10 cm thick. Scientific novelty. For the first time in the outcrops on the day surface in sandstones of the hanging wing of the Glubokoyarsk fault, systems of tectonic fault dislocations of higher orders have been established. The repeated tectonic activation of the Glubokoyarsk normal fault in fields of paleostresses of different kinematic types has been established. The influence of ruptured dislocations on the formation of accumulations of iron hydroxides in rocks has been studied. Practical significance. The features of the conditions of occurrence of sandstones and the system of faulting dislocations in the hanging wing of the Glubokoyarsky fault have been established, which make it possible to predict the structural-geological, tectonic and tectonophysical conditions near fault dislocations, which is important for planning and carrying out mining operations in mine fields. Key words: sandstones, fault, tectonic cracks, iron hydroxides, reconstruction, paleostress field.

Purpose. Investigation of the conditions peculiarities of occurrence and rupture deformations of sandstones in outcrops along the right bank of the river Kazenny Torets in the field of the mine “Capital”. Methodology. In this work there were used: traditional structural-geological methods of field research; methods of field tectonophysical research; computer programs “Fabric-8” and “Win-Tensor” for processing field data, building of the stretch rose-diagrams of rupture deformations and reconstructing paleostress fields. Results. The conditions of occurrence of sandstones and their changes in space have been investigated. The systems of tectonic fractures, their mineral filling and influence on the material composition of the sedimentary rocks have been studied. Special tectonophysical studies have been carried out to determine the signs of paleostress fields of different kinematic types and ages.Reconstruction of paleostress fields was carried out using the elements of beding of cracks, grooves and slip lines on their slide mirrors. Several systems of rupture dislocations have been identified based on the results of studies in the hanging wing of the Glubokoyarsky fault. Systems of cracks have been identified, which facilitated the migration of deep-seated solutions with iron compounds. Such solutions changed the composition of sandstones in the wings of ruptured dislocations and formed zones of rock saturation with iron hydroxides up to 10 cm thick. Scientific novelty. For the first time in the outcrops on the day surface in sandstones of the hanging wing of the Glubokoyarsk fault, systems of tectonic fault dislocations of higher orders have been established. The repeated tectonic activation of the Glubokoyarsk normal fault in fields of paleostresses of different kinematic types has been established. The influence of ruptured dislocations on the formation of accumulations of iron hydroxides in rocks has been studied. Practical significance. The features of the conditions of occurrence of sandstones and the system of faulting dislocations in the hanging wing of the Glubokoyarsky fault have been established, which make it possible to predict the structural-geological, tectonic and tectonophysical conditions near fault dislocations, which is important for planning and carrying out mining operations in mine fields. Key words: sandstones, fault, tectonic cracks, iron hydroxides, reconstruction, paleostress field.

Context. The disk-outflow connection is thought to play a key role in extracting excess angular momentum from a forming protostar. HH30 is a rare and beautiful example of a pre-main sequence star exhibiting a flared edge-on disk, an optical jet, and a CO molecular outflow, making this object a case study for the disk-jet-outflow paradigm. Aims. We aim to clarify the origin of the small-scale molecular outflow of HH30 and its link and impact on the accretion disk. Methods. We present ALMA 0.25″ angular resolution observations of the circumstellar disk and outflow around the T Tauri star HH30 in the dust continuum at 1.33 mm and of the molecular line transitions of 12CO(2–1) and 13CO(2–1). We performed a disk subtraction from the 12CO emission, from which we analysed the outflow properties in detail in the altitudes z ≲ 250 au. We fit the transverse position-velocity diagrams across the 12CO outflow to derive the ring positions and projected velocity components (including rotation). We use the results of these fits to discuss the origin of the CO outflow. Results. The 1.3 mm continuum emission shows a remarkable elongated morphology along PA = 31.2∘ ± 0.1∘ that has a constant brightness out to a radius of r = 75 au. The emission is marginally resolved in the transverse direction, implying an intrinsic vertical width ≤24 au and an inclination to the line-of-sight i ≥ 84.8∘. The 13CO emission is compatible with emission from a disk in Keplerian rotation, in agreement with the previous findings. The monopolar outflow, detected in 12CO, arises from the north-eastern face of the disk from a disk radius r ≤ 22 au and extends up to 5″ (or 700 au) above the disk plane. We derive a lower limit to the total mass of the CO cavity/outflow of 1.7 × 10−5 M⊙. The CO cavity morphology is that of a hollow cone with semi-opening angle ∼35∘. The derived kinematics are consistent with gas flowing along the conical surface with constant velocity of 9.3 ± 0.7 km s−1. We detect small rotation signatures (Vϕ sin i ∈ [0.1; 0.5] km s−1) in the same sense as the underlying circumstellar disk. From these rotation signatures we infer an average specific angular momentum of the outflow of 38 ± 15 au km s−1 at altitudes z ≤ 250 au. We also report the detection of small amplitude wiggling (1.2∘) of the CO axis around an average inclination to the line of sight of i = 91∘. Conclusions. The derived morphology and kinematics of the CO cavity are compatible with expectations from a slow disk wind, originating either through photo-evaporation or magneto-centrifugal processes. Under the steady assumption, we derive launching radii in the range 0.5–7 au. In that scenario, we confirm the large minimum mass flux of 9 × 10−8 M⊙ yr−1 for the CO wind. The wind would therefore extract a significant amount of the accreted mass flux through the disk and would likely play a crucial role in the disk evolution. If the CO flow originates from a steady-state disk wind, our ALMA observations rule out the 18 au binary orbital scenario previously proposed to account for the wiggling of the optical jet and favour instead a precession scenario in which the CO flow originates from a circumbinary disk around a close (separation ≤ 3.5 au) binary. Alternatively, the CO outflow could also trace the walls of a stationary cavity created by the propagation of multiple bow shocks. Detailed numerical simulations are under way to fully test the entrainment hypothesis.

THE PURPOSE. Perform a review of information sources on the state of small-capacity thermal power in Russia when the unit capacity of steam turbine, gas turbine and gas piston units is less than 25 MW. Evaluate the information sources of the authors of publications that provide statistics for small-scale energy facilities. Make an assessment of the state of small-scale energy in Russia based on a specific list of objects maintained by the authors over the past 25 years. Consider the manufacturers and characteristics of different types of aggregates, as well as the schemes for integrating aggregates into the thermal schemes of existing sources. METHODS. Statistical indicators of small-scale energy facilities presented in tabular form in Excel are determined based on the built-in functions of this program. RESULTS. The production and characteristics of modern units based on steam turbines are considered. Practical schemes for integrating counter-pressure steam turbo generators into the thermal schemes of existing heat sources are presented. Russian and foreign manufacturers and characteristics of electric units based on gas turbines and internal combustion engines operating on the Otto cycle are considered. Thermal diagrams of gas-turbine and gas-piston units producing both electric and thermal energy are given. A statistical analysis of the list of small-scale cogeneration and power plants of simple cycle compiled by the authors is performed. The number of stations of different types, their distribution by total capacity, regions, industries, and years of commissioning are determined. CONCLUSION. It is shown that gas-turbine and gas-piston installations with a total capacity of up to 80% play a decisive role in the structure of small thermal energy. Quantitative indicators - the total number of stations of small-scale power facilities is about 1500 units and the total electric capacity is more than 18 GW allow us to get an idea of the significant role of small-scale heat power in Russia. Quantitative indicators for solar and wind power plants in the country are also considered.

Abstract A satellite data analysis is performed to explore the Madden–Julian oscillation (MJO) focusing on the potential roles of the equatorial Rossby (ER) and Kelvin waves. Measurements from the Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR) and Visible/Infrared Scanner (VIRS) are analyzed in the frequency–wavenumber domain to identify and ultimately filter primary low-frequency modes in the Tropics. The space–time spectrum of deep-storm fraction estimated by PR and VIRS exhibits notable Kelvin wave signals at wavenumbers 5–8, a distinct MJO peak at wavenumbers 1–7 and periods of about 40 days, and a signal corresponding to the ER wave. These modes are separately filtered to study the individual modes and possible relationship among them in the time–longitude space. In 10 cases analyzed here, an MJO event is often collocated with a group of consecutive Kelvin waves as well as an intruding ER wave accompanied with the occasional onset of a stationary convective phase. The spatial and temporal relationship between the MJO and Kelvin wave is clearly visible in a lag composite diagram, while the ubiquity of the ER wave leads to a less pronounced relation between the MJO and ER wave. A case study based on the Geostationary Meteorological Satellite (GMS) imagery together with associated dynamic field captures the substructure of the planetary-scale waves. A cross-correlation analysis confirms the MJO-related cycle that involves surface and atmospheric parameters such as sea surface temperature, water vapor, low clouds, shallow convection, and near-surface wind as proposed in past studies. The findings suggest the possibility that a sequence of convective events coupled with the linear waves may play a critical role in MJO propagation. An intraseasonal radiative–hydrological cycle inherent in the local thermodynamic conditions could be also a potential factor responsible for the MJO by loosely modulating the envelope of the entire propagation system.

Context. Carbon stars have been, and still are, extensively studied. Given their complex internal structure and their peculiar chemical composition, they are living laboratories in which we can test stellar structure and evolution theories of evolved stars. Furthermore, they are the most relevant dust manufacturers, thus playing a crucial role in the evolution of galaxies. Aims. We aim to study the dust mineralogy of the circumstellar envelope of carbon stars in the Large Magellanic Cloud (LMC) to achieve a better understanding of the dust formation process in the outflow of these objects. We intend to investigate the expected distribution of carbon stars in the observational planes built with the filters of the Mid-Infrared Instrument (MIRI) mounted onboard the James Webb Space Telescope (JWST) to select the best planes allowing an exhaustive characterisation of the stars. Methods. We compared the synthetic spectral energy distributions, obtained by modelling asymptotic giant branch stars and the dust formation process in the wind, with the spectra of carbon stars in the LMC, taken with the Infrared Spectrograph onboard the Spitzer Space Telescope. From the detailed comparison between synthetic modelling and observation we characterise the individual sources and derive the detailed mineralogy of the dust in the circumstellar envelope. Results. The sample of stars considered here is composed of stars of diverse mass, formation epoch, degree of obscuration, and metallicity. We find that precipitation of MgS on SiC seeds is common to all non-metal-poor carbon stars. Solid carbon is the dominant dust component, with percentages above 80% in all cases; a percentage between 10% and 20% of carbon dust is under the form of graphite, the remaining being amorphous carbon. Regarding the observational planes based on the MIRI filters, the colour-magnitude ([F770W]–[F1800W], [F1800W]) plane allows the best understanding of the degree of obscuration of the stars, while the ([F1800W]–[F2550W], [F1800W]) diagram allows better discrimination among stars of different metallicities.

Abstract Histone methyltransferases (HMTs) are important epigenetic regulators of gene transcription and have been found disrupted at the genomic level in a spectrum of human tumors including hematological malignancies. In CLL, recurring genomic lesions targeting chromatin modifiers are emerging in the literature (Puente 2015, Nature) but their biological and clinical significance remain uncertain. We studied 802 CLL patients, divided into a discovery [n=261, sampled pre-treatment] and two validation cohorts [n=541, 431 pre-treatment and 110 ultra-high risk], using high-resolution SNP-arrays [n=572, Affymetrix SNP6.0 and HumanOmniS-8] and high-throughput re-sequencing [n=320, Haloplex and TruSeq] to identify genomic lesions targeting HMT genes. In our discovery cohort, we identified nine novel regions of copy-number changes; the prime finding was a recurrent deletion of chromosome 3p in 4% of patients between genomic positions 47.12-47.36Mb. This region included SETD2, KIF9 and KLHL18 (Fig 1A), with SETD2 being the most significantly under-expressed gene (p=0.001) in 3p-deleted [n=6] versus non-deleted cases [n=8]. Further validation in two independent cohorts showed that SETD2 deletions were enriched in ultra high-risk CLL and associated with loss of TP53 (p=0.003), genomic complexity (in TP53 wild-type cases, p=0.01) and chromothripsis. Next, we screened for somatic mutations in SETD2 using targeted re-sequencing and identified non-synonymous mutations in four (4.5%) discovery cases (p.D99G, p.W1306X, p.Q1545K, p.E1955Q), and 7/231 (3%) in the pre-treatment validation cases (p.A50T, p.P167L, p.E670K, p.M1742L, p.M1889T (x2), p.I2295M) (Fig 1B). Mutations were somatic in all samples tested [n=5]. To study the clonal nature of the SETD2 deletions, we assigned each genomic CNA with a relative copy-number by normalizing CNA intensity values from array features, and could infer that the 3p deletion was in the dominant clonal population in 14/21 cases with data available for analysis. Employing either the ABSOLUTE algorithm for our discovery cohort or manually correcting for tumor sample purity and local copy-number changes in our validation cohort, we observed that 10/11 SETD2 mutations exhibited a clonal cell fraction. These data strongly imply that SETD2 aberrations represent early clonal events in the pathobiology of CLL. Next, we extended our gene expression analysis to include additional wild-type, deleted, and mutated patients, showing reduced expression both in deleted and mutant cases (p=0.035), thus confirming haplo-insufficiency also for the SETD2-mutant cases. W e reviewed the DNA methylation status of the SETD2 gene body and promoter regions (15 & 9 CpG probes, respectively) from published data, and found no correlation between SETD2 methylation and RNA expression, suggesting that DNA methylation does not play a substantial role in regulating SETD2 expression in CLL. Finally, we analyzed the impact of SETD2 lesions on treatment-free survival (TFS) and overall survival (OS). For TFS and OS, we observed a significantly worse outcome (TFS: 44 vs. 105 months; p=0.004, OS: 85 vs. 199 months; p=0.002) in SETD2 deleted cases that were wild-type for TP53/ATM, compared to cases wild type for TP53/ATM/SETD2 (Fig 1D). Mutant SETD2 cases (wild-type for TP53/ATM) and those wild-type for TP53/ATM/SETD2 exhibited median TFS of 74 and 106 months respectively, differences that did not reach significance (p=0.1). Whilst these data suggest that SETD2 lesions may be clinically relevant, further investigations in larger materials are warranted to understand their full impact on survival. In conclusion, we report for the first time somatic deletions and mutations in SETD2, a gene found disrupted invarious human solid and hematological tumors, in ~7% of CLL patients requiring treatment. These are likely to be early clonal events and associate with TP53 dysfunction, genomic complexity and chromothripsis, with deletions enriched in ultra high-risk CLL. Figure 1. SETD2 lesions. A. SNP6.0 data for the del(3p) cases. B. Schematic diagram highlighting the prevalence and positioning of SETD2 mutations. C. Clonal cell fraction data for SETD2 and other gene mutations. D. Treatment-free survival (TFS). Figure 1. SETD2 lesions. A. SNP6.0 data for the del(3p) cases. B. Schematic diagram highlighting the prevalence and positioning of SETD2 mutations. C. Clonal cell fraction data for SETD2 and other gene mutations. D. Treatment-free survival (TFS). Disclosures Tausch: Gilead: Other: Travel support. Steele:Portola Pharmaceuticals: Other: Travel bursary to ASH 2015; Janssen: Other: Travel bursary to EHA 2015. Hillmen:Janssen: Consultancy, Honoraria, Research Funding; GSK: Consultancy, Honoraria, Research Funding; Novartis: Honoraria, Research Funding; Roche: Consultancy, Honoraria, Research Funding; Celgene: Research Funding; Gilead: Consultancy, Honoraria, Research Funding; AbbVie: Consultancy, Honoraria, Research Funding. Dyer:Gilead: Research Funding; Roche Pharmaceuticals: Speakers Bureau; ONO Pharmaceuticals: Research Funding. Stilgenbauer:AbbVie, Amgen, Boehringer-Ingelheim, Celgene, Genentech, Genzyme, Gilead, GSK, Janssen, Mundipharma, Novartis, Pharmacyclics, Roche: Consultancy, Honoraria, Research Funding. Schuh:Acerta Pharma BV: Research Funding. Strefford:Roche: Research Funding.

Ten years of Oregon Seed Certification Service (OSCS) preharvest field inspections converted from a nonspatial database to a geographic information system (GIS) were analyzed for patterns in spatial distribution of occurrence and severity of the 36 most common weeds of grass seed crops. This was done under the assumptions that those patterns would be primarily consequences of interactions among farming practices, soil properties, and biological traits of the weeds, and that improved understanding of the interactions would benefit the grass seed industry. Kriging, Ripley's K-function, and both Moran's I spatial autocorrelation and Getis-Ord General G high/low clustering using the multiple fixed distance band option all produced roughly similar classifications of weeds possessing strongest and weakest spatial clustering patterns. When Moran's I and General G analyses of maximum weed severity observed within individual fields over the life of stands were conducted using the inverse distance weighting option, however, results were highly sensitive to the presence of a small number of overlapping fields in the 10-yr record. Addition of any offset in the range from 6 to 6,437 m to measured distances between field centroids in inverse distance weighting matrices removed this sensitivity, and produced results closely matching those for the multiple fixed distance band method. Clustering was significant for maximum severity within fields over the 10-yr period for all 43 weeds and in 78% of single-year analyses. The remaining 22% of single-year cases showed random rather than dispersed distribution patterns. In decreasing order, weeds with strongest inverse-distance spatial autocorrelation were German velvetgrass, field bindweed, roughstalk bluegrass, annual bluegrass, orchardgrass, common velvetgrass, Italian ryegrass,Agrostisspp., and perennial ryegrass. Of these nine weeds, distance for peak spatial autocorrelation ranged from 2 km forAgrostisspp. to 34 km for common velvetgrass. Weeds with stronger spatial autocorrelation had greater range between distance of peak spatial autocorrelation and maximum range of significance. Z-scores for General G high/low clustering were substantially lower than corresponding values for Moran's I spatial autocorrelation, although the same two weeds (German velvetgrass and field bindweed) showed strongest clustering using both measures. Simultaneous patterns in Moran's I and General G implied that management practices relatively ineffective in controlling weeds usually played a greater role in causing weeds to cluster than highly effective practices, although both types of practices impacted Italian ryegrass distribution. Distance of peak high/low clustering among perennial weeds was smallest (1 to 3 km) for Canada thistle, field bindweed,Agrostisspp., and western wildcucumber, likely indicating that these weeds occurred in patchy infestations extending across neighboring fields. Although both wild carrot and field bindweed doubled in average severity over the period from 1994 to 2003, wild carrot was the only weed clearly undergoing an increase in spatial autocorrelation. Soil chemical and physical properties and dummy variables for soil type and crop explained small but significant portions of total variance in redundancy and canonical correspondence analysis of weed occurrence and severity. Fitch-Morgoliash tree diagrams and Redundancy Analysis (RDA) and Canonical Correspondence Analysis (CCA) ordinations revealed substantial differences among soil types in weed occurrence and severity. Gi∗ local hot-spot clustering combined with feature class to raster conversion protected grower expectations of confidentiality while describing dominant spatial features of weed distribution patterns in maps released to the public.

AbstractBased on wind speed, direction and power data, an assessment method of wind energy potential using finite mixture statistical distributions is proposed. Considering the correlation existing and the effect between wind speed and direction, the angular-linear modeling approach is adopted to construct the joint probability density function of wind speed and direction. For modeling the distribution of wind power density and estimating model parameters of null or low wind speed and multimodal wind speed data, based on expectation–maximization algorithm, a two-component three-parameter Weibull mixture distribution is chosen as wind speed model, and a von Mises mixture distribution with nine components and six components are selected as the models of wind direction and the correlation circular variable between wind speed and direction, respectively. A comprehensive technique of model selection, which includes Akaike information criterion, Bayesian information criterion, the coefficient of determination R2 and root mean squared error, is used to select the optimal model in all candidate models. The proposed method is applied to averaged 10-min field monitoring wind data and compared with the other estimation methods and judged by the values of R2 and root mean squared error, histogram plot and wind rose diagram. The results show that the proposed method is effective and the area under study is not suitable for wide wind turbine applications, and the estimated wind energy potential would be inaccuracy without considering the influence of wind direction.

Electrical energy crisis related to the increasing population in an area will increase the electrical energy customers. Besides diminishing reserves of fossil energy that is required of alternative energy from renewable energy sources. The problem is in incorporating a potential source of renewable energy with a generator needs power generation hybrid, the hybrid system with a generator as backup energy utilization is less than optimal because when there was a deficit power generator takes over all of the power wasted in renewable energy generation. The purpose of study is to produce a hybrid system design between the generation of solar energy, wind energy and generator as support (support) when the power deficit in energy of renewable generator. Research Method in the design of hybrid system is a design block diagram consisting of solar panels, wind turbines, inverters, and generator. At this stage it has produced research outputs in the form of models of hybrid renewable energy generation systems and generators, then make a circuit simulation and measurement. The results of this research is a hybrid system that works adaptive- connected the generator to the system when the power deficit or increase the load to provide power support on renewable energy generation. This hybrid system with a capacity of 3.5 kW less power than the previous system with the composition generator 5.7 kW 2.2 kW of renewable energy consists of a 1 kW solar panels, wind turbines 1.3 kW and 1.3 kW generator voltage at 310V DC bus coupling, the voltage on the bus coupling AC 220V / 50 Hz, total load current at 16A. The percentage utilization of renewable energy rose from 11.73% to 24,94% and generator utilization fell from 24.50% to 16.74%.

In-cylinder air flow structure makes significant impacts on fuel spray dispersion, fuel mixture formation, and flame propagation in spark ignition direct injection (SIDI) engines. While flow vortices can be observed during the early stage of intake stroke, it is very difficult to clearly identify their transient characteristics because these vortices are of multiple length scales with very different swirl motion strength. In this study, a high-speed time-resolved two-dimensional (2D) particle image velocimetry (PIV) is applied to record the flow structure of in-cylinder flow field along a swirl plane at 30 mm below the injector tip. First, a discretized method using flow field velocity vectors is presented to identify the location, strength, and rotating direction of vortices at different crank angles. The transients of vortex formation and dissipation processes are revealed by tracing the location and motion of the vortex center during the intake and compression strokes. In addition, an analysis method known as the wind-rose diagram, which is implemented for meteorological application, has been adopted to show the velocity direction distributions of 100 consecutive cycles. Results show that there exists more than one vortex center during early intake stroke and their fluctuations between each cycle can be clearly visualized. In summary, this approach provides an effective way to identify the vortex structure and to track the motion of vortex center for both large-scale and small-scale vortices.

AbstractA global Hovmöller diagram of column water vapor (CWV) at 30°N from daily ERA-Interim reanalysis data shows seasonally migrating North Pacific/Atlantic quasi-stationary atmospheric rivers (QSARs) located in the Eastern Pacific/Atlantic in winter and propagate to the Western Pacific/Atlantic in summer. Simplified general circulation model (GCM) experiments produce QSAR-like features if the boundary conditions include (1) the sea surface temperature contrast from the tropical warm pool-cold tongue and (2) topographic contrast similar to the Tibetan plateau. Simulated QSARs form downstream of topographic contrast during winter and coincide with it in summer. Two models of baroclinic instability demonstrate that QSARs coincide with the location where the most unstable mode phase speed equals that of the upper-level zonal winds. A consistent interpretation is that the waves become quasi-stationary at this location and break. The location of quasistationarity migrates from the Eastern Pacific/Atlantic in the winter, when upper-level winds are strong and extended over the basin, to the Western Pacific/Atlantic when winds are weak and contracted. Low-level wind convergence and moist static energy coincide with QSARs, and since the former two are essential ingredients to monsoon formation, this implies an important role for QSARs in monsoon onset. This connection opens a new window into the dynamics of subtropical monsoon extensions.

In this study, wind speed and direction data provided by Meteoblue AG-Switzerland as hourly time-series for 16 years from 2000 to 2015 for selected three cities in Gaza Strip, are used directly to evaluate the wind energy in the three selected sites which are geographically presenting the entire Strip. Jabalia is located in the North of Gaza Strip, Deir-albalah in the Middle and Rafah in the South. The wind rose diagrams have been depicted by using WRPLOT view 7.0.0 (wind rose plots for meteorological data from Lake Environmental, 2011). The statistical analysis of the data shows that; Rafah city is the first candidate to establish a wind farm in the entire Palestinian territory. The reason that, Rafah has the highest wind energy potential than the other sites. The second reason is that Rafah is located on the border crossing to Egypt, which facilitates the transfer of machinery, experts, and reduces transport and communication expanses. In addition to low population density, which increases the economic feasibility of utilizing wind energy at this location for remote area applications. The analysis has been done for a large types of wind turbines types. Gamesa G128-4.5 WT, which is manufactured for classes I and II wind speeds with low cut-in speed, was selected for our project. The estimated annual energy is 15,962 MWh/turbine, with an average utility factor of 40.4%; to cover the shortage of 200 MW we need to 110 WTs. The required area for the wind farm is estimated to be 43 km2.

The Role of Science in Developing Enhanced Oil & Gas Resources, Being Environmentally Sound, & Protecting Water Use • Global transformation with fossil fuel as primary source which have an effect on GDP, export/import changes, and global effects on pricing • History of evolution of oil and gas production in the United States • Global development: European Community, India, China, Brazil, Chile, Argentina and Mexico all have proven reserves • All time high extraction of tight natural gas and oil being environmentally sound and protecting domestic water supplies • Hydraulic fracking below potable water supplies • Drilling Diagrams – Vertical and Horizontal, Proper Casing  Record pace of pipeline construction to supply refineries & terminal ports  Pronounced effect on GDP • Natural gas treatment, delivery, from source to energy deficient countries exported as LNG • Cost subsidies and economic pricing of oil and gas extraction, hydro power, coal, nuclear, wind, and solar. Cost of power by region • There are no “Dry Holes” and more attributes of highly advanced geological technology

Floating fish cages provide the main production utilities for salmon farming. However, despite their pivotal role in production safety as well as in protection of the environment, there is still much room for improvement in relation to verified structural design procedures and computerized tools for structural analysis. To a large extent, they can be regarded as not being in accordance with the state-of-the-art of structural analysis and design for more traditional types of marine structures. In this paper, a study of fatigue design for floating fish farms is presented. This study is based on a structure that is being applied by the Norwegian fish farming industry today. The floater is made of steel cylinders that are configured as a square. The formulation for the wave loading is based on a combination of potential theory and horizontal drag forces on the floater. Horizontal and vertical drag forces on the netpen are also accounted for. A fatigue design procedure for floating fish farms in steel is suggested. The procedure is based on a time domain analysis of the structure in irregular waves. For each seastate, 1/2 h (real time) analysis is performed and the stress history for an assumed critical location is computed. Based on the stress histories, the fatigue damage is estimated by application of rain flow counting and a given SN curve. The scatter diagram for the seastates at a given location is generated from the associated wind speed distribution.

AbstractThe high Atlantic surface salinity has sometimes been interpreted as a signature of the Atlantic Meridional Overturning Circulation and an associated salt advection feedback. Here, the role of oceanic and atmospheric processes for creating the surface salinity difference between the Atlantic and Indo–Pacific is examined using observations and a conceptual model. In each basin, zonally averaged data are represented in diagrams relating net evaporation (Ẽ) and surface salinity (S). The data-pair curves in the Ẽ – S plane share common features in both basins. However, the slopes of the curves are generally smaller in the Atlantic than in the Indo–Pacific, indicating a weaker sensitivity of the Atlantic surface salinity to net evaporation variations. To interpret these observations, a conceptual advective-diffusive model of the upper-ocean salinity is constructed. Notably, the Ẽ – S relations can be qualitatively reproduced with only meridional diffusive salt transport. In this limit, the inter-basin difference in salinity is caused by the spatial structure of net evaporation, which in the Indo–Pacific oceans contains lower meridional wavenumbers that are weakly damped by the diffusive transport. The observed Atlantic Ẽ – S relationship at the surface reveals no clear influence of northward advection associated with the meridional overturning circulation; however a signature of northward advection emerges in the relationship when the salinity is vertically averaged over the upper kilometer. The results indicate that the zonal-mean near-surface salinity is shaped primarily by the spatial pattern of net evaporation and the diffusive meridional salt transport due to wind-driven gyres and mesoscale ocean eddies, rather than by salt advection within the meridional overturning circulation.

In the half-century since Shannon invented information theory… engineers have come up with brilliant ways of boiling redundancy out of information… This lets it be transmitted twice as fast (Bill Gates: 33). Shannon’s Code Puts an End to Noise The digital machine is often presented as the perfect medium for the efficient transmission of coded messages: an ever-improving machine, in which coded information travels near to the-speed-of-light. Integrated into a global network of communication, transmission is assumed to be friction-free – everything and everybody are just a click away. Indeed, the old problem of signal interference is subdued by the magnum opus of communication engineering – Shannon’s noiseless channel – a cure for the undesirable uncertainties of message sending (Shannon and Weaver 19). For that reason alone, the digitally enhanced fidelity of Shannon’s digital code, not only heralds a new age of communication, but also marks the end of the problem of noise. In effect, his mathematical theory of communication, establishes a highly effective coding mechanism that travels from sender to receiver, overcoming geographic constraint and the deafening raw of the analogue milieu. This makes the theory itself the substratum of the digital communication utopia, since Shannon’s conquest of noise has solved the reliability problem of code, allowing us to focus on the rapidity and fecundity of our messages. However, despite the ingenuity of the noiseless channel, its subsequent rapid expansion into a vast network of machines means that both senders and receivers pay a price for Shannon’s brilliance. The speed and boundless reproducibility of digital code outperforms our physical capacity to observe it. In this way, transmission works behind the scenes, becoming increasingly independent of the human gaze. Even so, we are assured that we will not be overwhelmed by code; a new digital order has purportedly emerged. As follows, network innovators provide us with robotic codes that work benevolently on our behalf, exploring a seemingly random universe of connection. These intelligent codes search the tangled webs that constitute digital communication networks, autonomously in step with our fleeting transactions and data desires. We can sleep safely at night… this is The Road Ahead. But of course, as we now know, the ideal system for perpetual communication has also turned out to be the perfect medium for the codes designed to destroy it (Gordon). Instead of efficiently taking care of our transmission needs, the flow of code has been interrupted by the relational interactions of a machinic assemblage (Deleuze and Guattari). This is a vast assemblage populated by both human and non-human actors. Its evolution has not followed a predictable path determined by the innovations of the science of code, but instead responds to the complex interactions and interconnectedness of the network environment. In this way, the binary switches of the robotic code have occasionally flipped over from true to false – from the munificent to the malevolent function. The interruption seems to be relatively new, but the human-computer assemblage has a long history of the production of what I term liar codes. They follow on from Gödel and Turing’s realisation of the incompleteness and undecidability of self-referential systems of logic in the 1930s. In the following decades, von Neumann’s ideas on self-reproducing code provided early programmers with the means to play coded games of life. Thirty years later and researchers discovered how unstable a network would become when a similarly coded evolutive got out of control (Shoch and Hupp, Cohen). By 1990, the digital worm had turned. Morris’s code famously ‘crashed’ the Internet. The liar code had escaped the research lab and entered the wild world of the network. Nevertheless, despite what appears to be the uncontrollable evolution of code, it is the assemblage itself that makes a difference. Many liar codes have since followed on from the games, experiments and accidents of the early human-computer assemblage. Some are simply mischievous pranks designed to take up space by making copies of themselves, while others conceal a deeper, sinister pre-programmed function of data piracy (Bey 401-434) and viral hijack. The former spread out across a network, spewing out fairly innocuous alerts, whereas the latter steel passwords, gaining access to safe places, capturing navigation tools, and redirecting our attention to the dark side of the global village. In addition to the deluge of spam, viruses and worms, liar code arrives hidden in Trojan programs. Like Russian dolls, code slips into email inboxes. Simple viral sentences repeatedly trick us into opening these programs and spreading the infection. By saying “I love you” code becomes a recursive deceiver, concealing the true intentions of the virus writer, while ensuring that the victim plays a crucial role in the propagation of the liar. Noise Is Dead – Long Live the New Noise! More recently Liar codes have been cunningly understood as contemporary instances of cultural noise – the other of order (Parikka). However, this does not mean that a solution can be found in the universality of Shannon’s linear diagram – this is an altogether different engineering problem. In principle, Shannon’s noise was more readily apprehended. It existed primarily at a technical level (signal noise), a problem solved by the incorporation of noise into a technical code (redundancy). Contrariwise, liar codes go beyond the signal/noise ratio of the content of a message. They are environmental absurdities and anomalies that resonate outside the technical layer into the cultural milieu of the human-computer assemblage. The new noise is produced by the hissing background distortion of the network, which relentlessly drives communication to a far-from-equilibrial state. Along these lines, the production of what appears to be a surplus of code is subject to the behaviour and functioning of a vast and vulnerable topology of human and non-human machinic interaction. Is the Solution to Be Found in a Clash of Codes? In an attempt to banish the network pirates and their growing phylum of liar codes there has been a mobilisation of antivirus technologies. Netizens have been drafted in to operate the malware blockers, set up firewalls or dig the electronic trenches. But these desperate tactics appeal only to those who believe that they can reverse the drift towards instability, and return a sense of order to the network. In reality, evidence of the effectiveness of these counter measures is negligible. Despite efforts to lower the frequency of attacks, the liar code keeps seeping in. Indeed, the disorder from which the new noise emerges is quite unlike the high entropic problem encountered by Shannon. Like this, digital anomalies are not simply undesirable, random distortions, repaired by coded negentropy. On the contrary, the liar is a calculated act of violence, but this is an action that emerges from a collective, war-like assemblage. Therefore, significantly, it is not the code, but the relational interactions that evolve. For this reason, it is not simply the liar codes that threaten the stability of transmission, but the opening-up of a networked medium that captures messages, turning them into an expression of the unknown of order. Code no longer conveys a message through a channel. Not at all, it is the assemblage itself that anarchically converts the message into an altogether different form of expression. The liar is a rhizome, not a root!! (See figure 1.) A Network Diagram of Senders, Receivers and Deceivers Rhizomatic liar code introduces an anarchic scrambling of the communication model. Ad nauseam, antivirus researchers bemoan the problem of the liar code, but their code-determined defence system has seemingly failed to tell apart the senders, receivers and deceivers. Their tactics cannot sidestep the Gödelian paradox. Interestingly, current research into complex network topologies, particularly the Internet and the Web (Barabási), appears to not only support this gloomy conclusion, but confirms that the problem extends beyond code to the dynamic formation of the network itself. In this way, complex network theory may help us to understand how the human-computer assemblage comes together in the production of viral anomalies. Indeed, the digital network is not, as we may think, a random universe of free arbitrary association. It does not conform to the principles leading to inevitable equilibrium (an averaging out of connectivity). It is instead, an increasingly auto-organised and undemocratic tangle of nodes and links in which a few highly connected aristocratic clusters form alongside many isolated regions. In this far-from-random milieu, the flow of code is not determined by the linear transmission of messages between senders and receivers, or for that matter is it guided by an algorithmic evolutive. On the contrary, while aristocratic networks provide a robust means of holding an assemblage together, their topological behaviour also makes them highly susceptible to viral epidemics. Liar codes easily spread through clusters formed out of preferential linkage, and a desire for exclusive, network alliances between humans and non-humans. From a remote location, a single viral code can promiscuously infect a highly connected population of nodes (Pastor-Satorras & Vespignani). This is the perfect environment for the actions of deceivers and their liar codes. On reflection, a revised diagram of transmission, which tackles head on the viral anomalies of the human-computer assemblage, would perhaps be unworkable. This is consistent with the problem of liar codes, and the resulting collapse of trustworthy transmission. The diagram would ideally need to factor in the anarchic, scrambled lines of communication (see figure 1), as well as the complex topological relations between node and link. Such a diagram would also need to trace significant topological behaviours and functions alongside the malfunctions of codes, coders and the sharing of codes over a network. It is this significant topological intensity of the human-computer assemblage that shifts the contemporary debate on noise away from Shannon’s model towards a complex, non-linear and relational interaction. In this sense, the diagram moves closer to the rhizomatic notion of a network (Deleuze and Guattari 9-10). Not so much a model of transmission, rather a model of viral transduction. References Barabási, Albert-László. Linked: The New Science of Networks. Cambridge, Mass: Perseus, 2002. Bey, Hakim in Ludlow, Peter (ed). Crypto Anarchy, Cyberstates and Pirate Utopias. Cambridge, Mass: MIT, 2001. Cohen, F. “Computer Viruses: Theory and Experiments.” Computers & Security 6 (1987): 22-35. Deleuze, Gilles, and Felix Guattari. A Thousand Plateaus: Capitalism and Schizophrenia. Trans. by Brian Massumi. London: The Athlone Press, 1987. Deleuze, Gilles, and Felix Guattari. Anti-Oedipus. London: The Athlone Press, 1984. Gates, Bill. The Road Ahead. London: Penguin, 1995/1996. Gordon, Sarah. “Technologically Enabled Crime: Shifting Paradigms for the Year 2000.” Computers and Security 1995. (5 Dec. 2005) http://www.research.ibm.com/antivirus/SciPapers/Gordon/Crime.html>. Latour, Bruno. Science in Action: How to Follow Scientists and Engineers through Society. Harvard University Press, 1988. Parikka, Jussi. “Viral Noise and the (Dis)Order of the Digital Culture.” M/C Journal 7.6 (2005). 5 Dec. 2005 http://journal.media-culture.org.au/0501/05-parikka.php>. Shannon, Claude, and Warren Weaver. The Mathematical Theory of Communication. University of Illinois Press, 1949/1998. Shoch, John F, and Jon A Hupp. “The ‘Worm’ Programs – Early Experience with a Distributed Computation.” Communications of the ACM 25.3 (March 1982): 172–180. 5 Dec. 2005. Pastor-Satorras, Romualdo, and Alessandro Vespignani. “Epidemic Spreading in Scale-Free Networks.” Physical Review Letters 86 (2001). Von Neumann, John, and Arthur Burks. Theory of Self-Reproducing Automata. University of Illinois Press, 1966. Citation reference for this article MLA Style Sampson, Tony. "Senders, Receivers and Deceivers: How Liar Codes Put Noise Back on the Diagram of Transmission." M/C Journal 9.1 (2006). echo date('d M. Y'); ?> <http://journal.media-culture.org.au/0603/03-sampson.php>. APA Style Sampson, T. (Mar. 2006) "Senders, Receivers and Deceivers: How Liar Codes Put Noise Back on the Diagram of Transmission," M/C Journal, 9(1). Retrieved echo date('d M. Y'); ?> from <http://journal.media-culture.org.au/0603/03-sampson.php>.

“MDCM, Inc. (B): Strategic IT Portfolio Management” examines the steps involved in developing a portfolio of IT projects aligned with a company's strategic objectives. Specifically, the case describes a situation where a firm has launched a transformation strategy but has yet to develop a complementary IT strategy. Students must select the optimal portfolio of projects aligned with the strategic objectives and define the global project execution strategy. The projects have both risks and dependencies. U.S.-based MDCM, Inc. specializes in medical device contract manufacturing and assembly. For the past five years, MDCM had grown by making more than twenty acquisitions of companies based outside the United States. This growth strategy enabled MDCM to better match its services to its customers, who had become larger and more global. In MDCM (A), the CIO of MDCM needed to determine the company's IT strategy and objectives. In doing so, he needed to ensure that they were properly aligned with the company's overall strategy and the new organization developed under an initiative called Horizon 2000. In a lecture prior to the cases, students should be introduced to the framework of IT portfolio management and how it can help focus IT efforts. In MDCM (B), the CIO has performed an audit of MDCM's IT and found twelve projects that are potential investment candidates for the next three years. The challenge for the IT Portfolio Management team is to identify the priority and appropriate sequence of investments to be made. The case assumes that students have knowledge of corporate IT. More specifically, the case is targeted for those who are or plan to become executives who would manage IT strategy and IT investment decisions either directly or in an oversight role. This case is the second in a series; the first is the case “MDCM, Inc. (A): IT Strategy Synchronization.”For this case, students create a portfolio management process and apply it to the IT project portfolio of a global manufacturing company. Students will learn how to balance risk and return of projects and short-term vs. long-term wins. They also create an activity network diagram, stressing the importance of understanding global resource constraints and execution timing. Students also learn the nuances of portfolio selection, e.g., outsourcing decision making and build vs. buy for a global firm.

IntroductionThis essay considers three design projects as microprotests. Reflecting on the ways design practice can generate spaces, sites and methods of protest, we use the concept of microprotest to consider how we, as designers ourselves, can protest by scaling down, focussing, slowing down and paying attention to the edges of our practice. Design microprotest is a form of design activism that is always collaborative, takes place within a community, and involves careful translation of a political conversation. While microprotest can manifest in any design discipline, in this essay we focus on visual communication design. In particular we consider the deep, reflexive practice of listening as the foundation of microprotests in visual communication design.While small in scale and fleeting in duration, these projects express rich and deep political engagements through conversations that create and maintain safe spaces. While many design theorists (Julier; Fuad-Luke; Clarke; Irwin et al.) have done important work to contextualise activist design as a broad movement with overlapping branches (social design, community design, eco-design, participatory design, critical design, and transition design etc.), the scope of our study takes ‘micro’ as a starting point. We focus on the kind of activism that takes shape in moments of careful design; these are moments when designers move politically, rather than necessarily within political movements. These microprotests respond to community needs through design more than they articulate a broad activist design movement. As such, the impacts of these microprotests often go unnoticed outside of the communities within which they take place. We propose, and test in this essay, a mode of analysis for design microprotests that takes design activism as a starting point but pays more attention to community and translation than designers and their global reach.In his analysis of design activism, Julier proposes “four possible conceptual tactics for the activist designer that are also to be found in particular qualities in the mainstream design culture and economy” (Julier, Introduction 149). We use two of these tactics to begin exploring a selection of attributes common to design microprotests: temporality – which describes the way that speed, slowness, progress and incompletion are dealt with; and territorialisation – which describes the scale at which responsibility and impact is conceived (227). In each of three projects to which we apply these tactics, one of us had a role as a visual communicator. As such, the research is framed by the knowledge creating paradigm described by Jonas as “research through design”.We also draw on other conceptualisations of design activism, and the rich design literature that has emerged in recent times to challenge the colonial legacies of design studies (Schultz; Tristan et al.; Escobar). Some analyses of design activism already focus on the micro or the minor. For example, in their design of social change within organisations as an experimental and iterative process, Lensjkold, Olander and Hasse refer to Deleuze and Guattari’s minoritarian: “minor design activism is ‘a position in co-design engagements that strives to continuously maintain experimentation” (67). Like minor activism, design microprotests are linked to the continuous mobilisation of actors and networks in processes of collective experimentation. However microprotests do not necessarily focus on organisational change. Rather, they create new (and often tiny) spaces of protest within which new voices can be heard and different kinds of listening can be done.In the first of our three cases, we discuss a representation of transdisciplinary listening. This piece of visual communication is a design microprotest in itself. This section helps to frame what we mean by a safe space by paying attention to the listening mode of communication. In the next sections we explore temporality and territorialisation through the design microprotests Just Spaces which documents the collective imagining of safe places for LBPQ (Lesbian, Bisexual, Pansexual, and Queer) women and non-binary identities through a series of graphic objects and Conversation Piece, a book written, designed and published over three days as a proposition for a collective future. A Representation of Transdisciplinary ListeningThe design artefact we present in this section is a representation of listening and can be understood as a microprotest emerging from a collective experiment that materialises firstly as a visual document asking questions of the visual communication discipline and its role in a research collaboration and also as a mirror for the interdisciplinary team to reflexively develop transdisciplinary perspectives on the risks associated with the release of environmental flows in the upper reaches of Hawkesbury Nepean River in NSW, Australia. This research project was funded through a Challenge Grant Scheme to encourage transdisciplinarity within the University. The project team worked with the Hawkesbury Nepean Catchment Management Authority in response to the question: What are the risks to maximising the benefits expected from increased environmental flows? Listening and visual communication design practice are inescapably linked. Renown American graphic designer and activist Sheila de Bretteville describes a consciousness and a commitment to listening as an openness, rather than antagonism and argument. Fiumara describes listening as nascent or an emerging skill and points to listening as the antithesis of the Western culture of saying and expression.For a visual communication designer there is a very specific listening that can be described as visual hearing. This practice materialises the act of hearing through a visualisation of the information or knowledge that is shared. This act of visual hearing is a performative process tracing the actors’ perspectives. This tracing is used as content, which is then translated into a transcultural representation constituted by the designerly act of perceiving multiple perspectives. The interpretation contributes to a shared project of transdisciplinary understanding.This transrepresentation (Fig. 1) is a manifestation of a small interaction among a research team comprised of a water engineer, sustainable governance researcher, water resource management researcher, environmental economist and a designer. This visualisation is a materialisation of a structured conversation in response to the question What are the risks to maximising the benefits expected from increased environmental flows? It represents a small contribution that provides an opportunity for reflexivity and documents a moment in time in response to a significant challenge. In this translation of a conversation as a visual representation, a design microprotest is made against reduction, simplification, antagonism and argument. This may seem intangible, but as a protest through design, “it involves the development of artifacts that exist in real time and space, it is situated within everyday contexts and processes of social and economic life” (Julier 226). This representation locates conversation in a visual order that responds to particular categorisations of the political, the institutional, the socio-economic and the physical in a transdisciplinary process that focusses on multiple perspectives.Figure 1: Transrepresentation of responses by an interdisciplinary research team to the question: What are the risks to maximising the benefits expected from increased environmental flows in the Upper Hawkesbury Nepean River? (2006) Just Spaces: Translating Safe SpacesListening is the foundation of design microprotest. Just Spaces emerged out of a collaborative listening project It’s OK! An Anthology of LBPQ (Lesbian, Bisexual, Pansexual and Queer) Women’s and Non-Binary Identities’ Stories and Advice. By visually communicating the way a community practices supportive listening (both in a physical form as a book and as an online resource), It’s OK! opens conversations about how LBPQ women and non-binary identities can imagine and help facilitate safe spaces. These conversations led to thinking about the effects of breaches of safe spaces on young LBPQ women and non-binary identities. In her book The Cultural Politics of Emotion, Sara Ahmed presents Queer Feelings as a new way of thinking about Queer bodies and the way they use and impress upon space. She makes an argument for creating and imagining new ways of creating and navigating public and private spaces. As a design microprotest, Just Spaces opens up Queer ways of navigating space through a process Ahmed describes as “the ‘non-fitting’ or discomfort .... an opening up which can be difficult and exciting” (Ahmed 154). Just Spaces is a series of workshops, translated into a graphic design object, and presented at an exhibition in the stairwell of the library at the University of Technology Sydney. It protests the requirement of navigating heteronormative environments by suggesting ‘Queer’ ways of being in and designing in space. The work offers solutions, suggestions, and new ways of doing and making by offering design methods as tools of microprotest to its participants. For instance, Just Spaces provides a framework for sensitive translation, through the introduction of a structure that helps build personas based on the game Dungeons and Dragons (a game popular among certain LGBTQIA+ communities in Sydney). Figure 2: Exhibition: Just Spaces, held at UTS Library from 5 to 27 April 2018. By focussing the design process on deep listening and rendering voices into visual translations, these workshops responded to Linda Tuhiwai Smith’s idea of the “outsider within”, articulating the way research should be navigated in vulnerable groups that have a history of being exploited as part of research. Through reciprocity and generosity, trust was generated in the design process which included a shared dinner; opening up participant-controlled safe spaces.To open up and explore ideas of discomfort and safety, two workshops were designed to provide safe and sensitive spaces for the group of seven LBPQ participants and collaborators. Design methods such as drawing, group imagining and futuring using a central prototype as a prompt drew out discussions of safe spaces. The prototype itself was a small folded house (representative of shelter) printed with a number of questions, such as:Our spaces are often unsafe. We take that as a given. But where do these breaches of safety take place? How was your safe space breached in those spaces?The workshops resulted in tangible objects, made by the participants, but these could not be made public because of privacy implications. So the next step was to use visual communication design to create sensitive and honest visual translations of the conversations. The translations trace images from the participants’ words, sketches and notes. For example, handwritten notes are transcribed and reproduced with a font chosen by the designer based on the tone of the comment and by considering how design can retain the essence of person as well as their anonymity. The translations focus on the micro: the micro breaches of safety; the interactions that take place between participants and their environment; and the everyday denigrating experiences that LBPQ women and non-binary identities go through on an ongoing basis. This translation process requires precise skills, sensitivity, care and deep knowledge of context. These skills operate at the smallest of scales through minute observation and detailed work. This micro-ness translates to the potential for truthfulness and care within the community, as it establishes a precedent through the translations for others to use and adapt for their own communities.The production of the work for exhibition also occurred on a micro level, using a Risograph, a screenprinting photocopier often found in schools, community groups and activist spaces. The machine (ME9350) used for this project is collectively owned by a co-op of Sydney creatives called Rizzeria. Each translation was printed only five times on butter paper. Butter paper is a sensitive surface but difficult to work with making the process slow and painstaking and with a lot of care.All aspects of this process and project are small: the pieced-together translations made by assembling segments of conversations; zines that can be kept in a pocket and read intimately; the group of participants; and the workshop and exhibition spaces. These small spaces of safety and their translations make possible conversations but also enable other safe spaces that move and intervene as design microprotests. Figure 3: Piecing the translations together. Figure 4: Pulling the translation off the drum; this was done every print making the process slow and requiring gentleness. This project was and is about slowing down, listening and visually translating in order to generate and imagine safe spaces. In this slowness, as Julier describes “...the activist is working in a more open-ended way that goes beyond the materialization of the design” (229). It creates methods for listening and collaboratively generating ways to navigate spaces that are fraught with micro conflict. As an act of territorialisation, it created tiny and important spaces as a design microprotest. Conversation Piece: A Fast and Slow BookConversation Piece is an experiment in collective self-publishing. It was made over three days by Frontyard, an activist space in Marrickville, NSW, involved in community “futuring”. Futuring for Frontyard is intended to empower people with tools to imagine and enact preferred futures, in contrast to what design theorist Tony Fry describes as “defuturing”, the systematic destruction of possible futures by design. Materialised as a book, Conversation Piece is also an act of collective futuring. It is a carefully designed process for producing dialogues between unlikely parties using an image archive as a starting point. Conversation Piece was designed with the book sprint format as a starting point. Founded by software designer Adam Hyde, book sprints are a method of collectively generating a book in just a few days then publishing it. Book sprints are related to the programming sprints common in agile software development or Scrum, which are often used to make FLOSS (Free and Open Source Software) manuals. Frontyard had used these techniques in a previous project to develop the Non Cash Arts Asset Platform.Conversation Piece was also modeled on two participatory books made during sprints that focussed on articulating alternative futures. Collaborative Futures was made during Transmediale in 2009, and Futurish: Thinking Out Loud about Futures (2015).The design for Conversation Piece began when Frontyard was invited to participate in the Hobiennale in 2017, a free festival emerging from the “national climate of uncertainty within the arts, influenced by changes to the structure of major arts organisations and diminishing funding opportunities.” The Hobiennale was the first Biennale held in Hobart, Tasmania, but rather than producing a standard large art survey, it focussed on artist-run spaces and initiatives, emergant practices, and marginalised voices in the arts. Frontyard is not an artist collective and does not work for commissions. Rather, the response to the invitation was based on how much energy there was in the group to contribute to Hobiennale. At Frontyard one of the ways collective and individual energy is accounted for is using spoon theory, a disability metaphor used to describe the planning that many people have to do to conserve and ration energy reserves in their daily lives (Miserandino). As outlined in the glossary of Conversation Piece, spoon theory is:A way of accounting for our emotional or physical energy and therefore our ability to participate in activities. Spoon theory can be used to collaborate with care and avoid guilt and burn out. Usually spoon theory is applied at an individual level, but it can also be used by organisations. For example, Hobiennale had enough spoons to participate in the Hobiennale so we decided to give it a go. (180)To make to book, Frontyard invited visitors to Hobiennale to participate in a series of open conversations that began with the photographic archive of the organisation over the two years of its existence. During a prototyping session, Frontyard designed nine diagrams that propositioned ways to begin conversations by combining images in different ways. Figure 5: Diagram 9. Conversation Piece: p.32-33One of the purposes of the diagrams, and the book itself, was to bring attention to the micro dynamics of conversation over time, and to create a safe space to explore the implications of these. While the production process and the book itself is micro (ten copies were printed and immediately given away), the decisions made in regards to licensing (a creative commons license is used), distribution (via the Internet Archive) and content generation (through participatory design processes) the project’s commitment to open design processes (Van Abel, Evers, Klaassen and Troxler) mean its impact is unpredictable. Counter-logical to the conventional copyright of books, open design borrows its definition - and at times its technologies and here its methods - from open source software design, to advocate the production of design objects based on fluid and shared circulation of design information. The tension between the abundance produced by an open approach to making, and the attention to the detail of relationships produced by slowing down and scaling down communication processes is made apparent in Conversation Piece:We challenge ourselves at Frontyard to keep bureaucratic processes as minimal an open as possible. We don’t have an application or acquittal process: we prefer to meet people over a cup of tea. A conversation is a way to work through questions. (7)As well as focussing on the micro dynamics of conversations, this projects protests the authority of archives. It works to dismantle the hierarchies of art and publishing through the design of an open, transparent, participatory publishing process. It offers a range of propositions about alternative economies, the agency of people working together at small scales, and the many possible futures in the collective imaginaries of people rethinking time, outcomes, results and progress.The contributors to the book are those in conversation – a complex networks of actors that are relationally configured and themselves in constant change, so as Julier explains “the object is subject to constant transformations, either literally or in its meaning. The designer is working within this instability.” (230) This is true of all design, but in this design microprotest, Frontyard works within this instability in order to redirect it. The book functions as a series of propositions about temporality and territorialisation, and focussing on micro interventions rather than radical political movements. In one section, two Frontyard residents offer a story of migration that also serves as a recipe for purslane soup, a traditional Portuguese dish (Rodriguez and Brison). Another lifts all the images of hand gestures from the Frontyard digital image archive and represents them in a photo essay. Figure 6: Talking to Rocks. Conversation Piece: p.143ConclusionThis article is an invitation to momentarily suspend the framing of design activism as a global movement in order to slow down the analysis of design protests and start paying attention to the brief moments and small spaces of protest that energise social change in design practice. We offered three examples of design microprotests, opening with a representation of transdisciplinary listening in order to frame design as a way if interpreting and listening as well as generating and producing. The two following projects we describe are collective acts of translation: small, momentary conversations designed into graphic forms that can be shared, reproduced, analysed, and remixed. Such protests have their limitations. Beyond the artefacts, the outcomes generated by design microprotests are difficult to identify. While they push and pull at the temporality and territorialisation of design, they operate at a small scale. How design microprotests connect to global networks of protest is an important question yet to be explored. The design practices of transdisciplinary listening, Queer Feelings and translations, and collaborative book sprinting, identified in these design microprotests change the thoughts and feelings of those who participate in ways that are impossible to measure in real time, and sometimes cannot be measured at all. Yet these practices are important now, as they shift the way designers design, and the way others understand what is designed. By identifying the common attributes of design microprotests, we can begin to understand the way necessary political conversations emerge in design practice, for instance about safe spaces, transdisciplinarity, and archives. Taking a research through design approach these can be understood over time, rather than just in the moment, and in specific territories that belong to community. They can be reconfigured into different conversations that change our world for the better. References Ahmed, Sara. “Queer Feelings.” The Cultural Politics of Emotion. Edinburgh: Edinburgh UP, 2004. 143-167.Clarke, Alison J. "'Actions Speak Louder': Victor Papanek and the Legacy of Design Activism." Design and Culture 5.2 (2013): 151-168.De Bretteville, Sheila L. Design beyond Design: Critical Reflection and the Practice of Visual Communication. Ed. Jan van Toorn. Maastricht: Jan van Eyck Akademie Editions, 1998. 115-127.Evers, L., et al. Open Design Now: Why Design Cannot Remain Exclusive. Amsterdam: BIS Publishers, 2011.Escobar, Arturo. Designs for the Pluriverse: Radical Interdependence, Autonomy, and the Making of Worlds. Duke UP, 2018.Fiumara, G.C. The Other Side of Language: A Philosophy of Listening. London: Routledge, 1995.Fuad-Luke, Alastair. Design Activism: Beautiful Strangeness for a Sustainable World. London: Routledge, 2013.Frontyard Projects. 2018. Conversation Piece. Marrickville: Frontyard Projects. Fry, Tony. A New Design Philosophy: An Introduction to Defuturing. Sydney: UNSW P, 1999.Hanna, Julian, Alkan Chipperfield, Peter von Stackelberg, Trevor Haldenby, Nik Gaffney, Maja Kuzmanovic, Tim Boykett, Tina Auer, Marta Peirano, and Istvan Szakats. Futurish: Thinking Out Loud about Futures. Linz: Times Up, 2014. Irwin, Terry, Gideon Kossoff, and Cameron Tonkinwise. "Transition Design Provocation." Design Philosophy Papers 13.1 (2015): 3-11.Julier, Guy. "From Design Culture to Design Activism." Design and Culture 5.2 (2013): 215-236.Julier, Guy. "Introduction: Material Preference and Design Activism." Design and Culture 5.2 (2013): 145-150.Jonas, W. “Exploring the Swampy Ground.” Mapping Design Research. Eds. S. Grand and W. Jonas. Basel: Birkhauser, 2012. 11-41.Kagan, S. Art and Sustainability. Bielefeld: Transcript, 2011.Lenskjold, Tau Ulv, Sissel Olander, and Joachim Halse. “Minor Design Activism: Prompting Change from Within.” Design Issues 31.4 (2015): 67–78. doi:10.1162/DESI_a_00352.Max-Neef, M.A. "Foundations of Transdisciplinarity." Ecological Economics 53.53 (2005): 5-16.Miserandino, C. "The Spoon Theory." <http://www.butyoudontlooksick.com>.Nicolescu, B. "Methodology of Transdisciplinarity – Levels of Reality, Logic of the Included Middle and Complexity." Transdisciplinary Journal of Engineering and Science 1.1 (2010): 19-38.Palmer, C., J. Gothe, C. Mitchell, K. Sweetapple, S. McLaughlin, G. Hose, M. Lowe, H. Goodall, T. Green, D. Sharma, S. Fane, K. Brew, and P. Jones. “Finding Integration Pathways: Developing a Transdisciplinary (TD) Approach for the Upper Nepean Catchment.” Proceedings of the 5th Australian Stream Management Conference: Australian Rivers: Making a Difference. Thurgoona, NSW: Charles Sturt University, 2008.Rodriguez and Brison. "Purslane Soup." Conversation Piece. Eds. Frontyard Projects. Marrickville: Frontyard Projects, 2018. 34-41.Schultz, Tristan, et al. "What Is at Stake with Decolonizing Design? A Roundtable." Design and Culture 10.1 (2018): 81-101.Smith, Linda Tuhiwai. Decolonising Methodologies: Research and Indigenous Peoples. New York: ZED Books, 1998. Van Abel, Bas, et al. Open Design Now: Why Design Cannot Remain Exclusive. Bis Publishers, 2014.Wing Sue, Derald. Microaggressions in Everyday Life: Race, Gender, and Sexual Orientation. London: John Wiley & Sons, 2010. XV-XX.