Journal articles on the topic 'Data structure, segment tree, version management'

Semantic Web has recently gained traction with the use of Linked Open Data (LOD) on the Web. Although numerous state-of-the-art methodologies, standards, and technologies are applicable to the LOD cloud, many issues persist. Because the LOD cloud is based on graph-based resource description framework (RDF) triples and the SPARQL query language, we cannot directly adopt traditional techniques employed for database management systems or distributed computing systems. This paper addresses how the LOD cloud can be efficiently organized, retrieved, and evaluated. We propose a novel hybrid approach that combines the index and live exploration approaches for improved LOD join query performance. Using a two-step index structure combining a disk-based 3D R*-tree with the extended multidimensional histogram and flash memory-based k-d trees, we can efficiently discover interlinked data distributed across multiple resources. Because this method rapidly prunes numerous false hits, the performance of join query processing is remarkably improved. We also propose a hot-cold segment identification algorithm to identify regions of high interest. The proposed method is compared with existing popular methods on real RDF datasets. Results indicate that our method outperforms the existing methods because it can quickly obtain target results by reducing unnecessary data scanning and reduce the amount of main memory required to load filtering results.

Individual tree crown (ITC) segmentation is an approach to isolate individual tree from the background vegetation and delineate precisely the crown boundaries for forest management and inventory purposes. ITC detection and delineation have been commonly generated from canopy height model (CHM) derived from light detection and ranging (LiDAR) data. Existing ITC segmentation methods, however, are limited in their efficiency for characterizing closed canopies, especially in tropical forests, due to the overlapping structure and irregular shape of tree crowns. Furthermore, the potential of 3-dimensional (3D) LiDAR data is not fully realized by existing CHM-based methods. Thus, the aim of this study was to develop an efficient framework for ITC segmentation in tropical forests using LiDAR-derived CHM and 3D point cloud data in order to accurately estimate tree attributes such as the tree height, mean crown width and aboveground biomass (AGB). The proposed framework entails five major steps: (1) automatically identifying dominant tree crowns by implementing semi-variogram statistics and morphological analysis; (2) generating initial tree segments using a watershed algorithm based on mathematical morphology; (3) identifying “problematic” segments based on predetermined set of rules; (4) tuning the problematic segments using a modified distance-based algorithm (DBA); and (5) segmenting and counting the number of individual trees based on the 3D LiDAR point clouds within each of the identified segment. This approach was developed in a way such that the 3D LiDAR points were only examined on problematic segments identified for further evaluations. 209 reference trees with diameter at breast height (DBH) ≥ 10 cm were selected in the field in two study areas in order to validate ITC detection and delineation results of the proposed framework. We computed tree crown metrics (e.g., maximum crown height and mean crown width) to estimate aboveground biomass (AGB) at tree level using previously published allometric equations. Accuracy assessment was performed to calculate percentage of correctly detected trees, omission and commission errors. Our method correctly identified individual tree crowns with detection accuracy exceeding 80 percent at both forest sites. Also, our results showed high agreement (R2 > 0.64) in terms of AGB estimates using 3D LiDAR metrics and variables measured in the field, for both sites. The findings from our study demonstrate the efficacy of the proposed framework in delineating tree crowns, even in high canopy density areas such as tropical rainforests, where, usually the traditional algorithms are limited in their performances. Moreover, the high tree delineation accuracy in the two study areas emphasizes the potential robustness and transferability of our approach to other densely forested areas across the globe.

The high mountains stretch over 20.4% of Nepal’s land surface with diverse climatic conditions and associated vegetation types. An understanding of tree species and forest structural pattern variations across different climatic regions is crucial for mountain ecology. This study strived to carry out a comparative evaluation of species diversity, main stand variables, and canopy cover of forests with contrasting precipitation conditions in the Annapurna range. Firstly, climate data provided by CHELSA version 1.2, were used to identify distinct precipitation regimes. Lamjung and Mustang were selected as two contrasting precipitation regions, and have average annual precipitation of 2965 mm and 723 mm, respectively. Stratified random sampling was used to study 16 plots, each measuring 500 m2 and near the tree line at an elevation range of 3000 to 4000 m across different precipitation conditions. In total, 870 trees were identified and measured. Five hemispherical photos using a fisheye lens were taken in each plot for recording and analyzing canopy cover. Margalef’s index was used to measure species richness, while two diversity indices: the Shannon–Wiener Index and Simpson Index were used for species diversity. Dominant tree species in both study regions were identified through the Important Value Index (IVI). The Wilcoxon rank-sum test was employed to determine the differences in forest structure and composition variables between the two precipitation regimes. In total, 13 species were recorded with broadleaved species predominating in the high precipitation region and coniferous species in the low precipitation region. Higher species richness and species diversity were recorded in the low precipitation region, whereas the main stand variables: basal area and stem density were found to be higher in the high precipitation region. Overall, an inverse J-shaped diameter distribution was found in both precipitation regions signifying uneven-aged forest. A higher proportion of leaning and buttressed trees were recorded in the high precipitation region. However, similar forest canopy cover conditions (>90%) were observed in both study regions. The findings of this research provide a comprehensive narrative of tree species and forest structure across distinct precipitation regimes, which can be crucial to administrators and local people for the sustainable management of resources in this complex region.

Abstract. Since 70 % of global forests are managed and forests impact the global carbon cycle and the energy exchange with the overlying atmosphere, forest management has the potential to mitigate climate change. Yet, none of the land-surface models used in Earth system models, and therefore none of today's predictions of future climate, accounts for the interactions between climate and forest management. We addressed this gap in modelling capability by developing and parametrising a version of the ORCHIDEE land-surface model to simulate the biogeochemical and biophysical effects of forest management. The most significant changes between the new branch called ORCHIDEE-CAN (SVN r2290) and the trunk version of ORCHIDEE (SVN r2243) are the allometric-based allocation of carbon to leaf, root, wood, fruit and reserve pools; the transmittance, absorbance and reflectance of radiation within the canopy; and the vertical discretisation of the energy budget calculations. In addition, conceptual changes were introduced towards a better process representation for the interaction of radiation with snow, the hydraulic architecture of plants, the representation of forest management and a numerical solution for the photosynthesis formalism of Farquhar, von Caemmerer and Berry. For consistency reasons, these changes were extensively linked throughout the code. Parametrisation was revisited after introducing 12 new parameter sets that represent specific tree species or genera rather than a group of often distantly related or even unrelated species, as is the case in widely used plant functional types. Performance of the new model was compared against the trunk and validated against independent spatially explicit data for basal area, tree height, canopy structure, gross primary production (GPP), albedo and evapotranspiration over Europe. For all tested variables, ORCHIDEE-CAN outperformed the trunk regarding its ability to reproduce large-scale spatial patterns as well as their inter-annual variability over Europe. Depending on the data stream, ORCHIDEE-CAN had a 67 to 92 % chance to reproduce the spatial and temporal variability of the validation data.

Abstract. The mechanistic model GO+ describes the functioning and growth of managed forests based upon biophysical and biogeochemical processes. The biophysical and biogeochemical processes included are modelled using standard formulations of radiative transfer, convective heat exchange, evapotranspiration, photosynthesis, respiration, plant phenology, growth and mortality, biomass nutrient content, and soil carbon dynamics. The forest ecosystem is modelled as three layers, namely the tree overstorey, understorey and soil. The vegetation layers include stems, branches and foliage and are partitioned dynamically between sunlit and shaded fractions. The soil carbon submodel is an adaption of the Roth-C model to simulate the impact of forest operations. The model runs at an hourly time step. It represents a forest stand covering typically 1 ha and can be straightforwardly upscaled across gridded data at regional, country or continental levels. GO+ accounts for both the immediate and long-term impacts of forest operations on energy, water and carbon exchanges within the soil–vegetation–atmosphere continuum. It includes exhaustive and versatile descriptions of management operations (soil preparation, regeneration, vegetation control, selective thinning, clear-cutting, coppicing, etc.), thus permitting the effects of a wide variety of forest management strategies to be estimated: from close to nature to intensive. This paper examines the sensitivity of the model to its main parameters and estimates how errors in parameter values are propagated into the predicted values of its main output variables.The sensitivity analysis demonstrates an interaction between the sensitivity of variables, with the climate and soil hydraulic properties being dominant under dry conditions but the leaf biochemical properties being most influential with wet soil. The sensitivity profile of the model changes from short to long timescales due to the cumulative effects of the fluxes of carbon, energy and water on the stand growth and canopy structure. Apart from a few specific cases, the model simulations are close to the values of the observations of atmospheric exchanges, tree growth, and soil carbon and water stock changes monitored over Douglas fir, European beech and pine forests of different ages. We also illustrate the capacity of the GO+ model to simulate the provision of key ecosystem services, such as the long-term storage of carbon in biomass and soil under various management and climate scenarios.

Mulga is a distinctive woodland or shrub community with a wide distribution across the semi-arid zone of southern and central Australia. Mulga (Acacia aneura) is the dominant shrub and small tree, but other species of Acacia are common. Typical of Australian habitats in the arid zone, mulga has a core of resident bird species that is augmented by nomadic (opportunistic) species when conditions are favourable. This paper describes the foraging behaviour and habitat use of a mulga avifauna in the vicinity of Alice Springs during late winter, when many opportunistic species were present. Data were obtained for 24 species, of which 16 were confirmed as nesting. Many birds, regardless of their normal foraging habits, converged on a common food resource: a geometrid moth (Geometridae) that was abundant on mulga plants. Despite their use of a common food resource, species differed in their foraging behaviour, proportions of different substrates used, and foraging heights. Ground-foraging species dominated the avifauna, but in most respects the guild structure of the community was a scaled-down version of Eucalyptus forest avifaunas. Differences in guild structure between mulga and eucalypt forest are best explained by differences between the two habitats in the kinds of resources (e.g. foraging substrates, types of food) that are available.

Abstract. The ability to model morphological changes on complex, multi-landform coasts over decadal to centennial timescales is essential for sustainable coastal management worldwide. One approach involves coupling of landform-specific simulation models (e.g. cliffs, beaches, dunes and estuaries) that have been independently developed. An alternative, novel approach explored in this paper is to capture the essential characteristics of the landform-specific models using a common spatial representation within an appropriate software framework. This avoid the problems that result from the model-coupling approach due to between-model differences in the conceptualizations of geometries, volumes and locations of sediment. In the proposed framework, the Coastal Modelling Environment (CoastalME), change in coastal morphology is represented by means of dynamically linked raster and geometrical objects. A grid of raster cells provides the data structure for representing quasi-3-D spatial heterogeneity and sediment conservation. Other geometrical objects (lines, areas and volumes) that are consistent with, and derived from, the raster structure represent a library of coastal elements (e.g. shoreline, beach profiles and estuary volumes) as required by different landform-specific models. As a proof-of-concept, we illustrate the capabilities of an initial version of CoastalME by integrating a cliff–beach model and two wave propagation approaches. We verify that CoastalME can reproduce behaviours of the component landform-specific models. Additionally, the integration of these component models within the CoastalME framework reveals behaviours that emerge from the interaction of landforms, which have not previously been captured, such as the influence of the regional bathymetry on the local alongshore sediment-transport gradient and the effect on coastal change on an undefended coastal segment and on sediment bypassing of coastal structures.

Abstract. Gravitational natural hazards such as snow avalanches, rockfalls, shallow landslides and volcanic activity represent a risk to mountain communities around the world. In particular, where documentary records about these processes are rare, decisions on risk management and land-use planning have to be based on a variety of other sources including vegetation, tree-ring data and natural hazard process models. We used a combination of these methods in order to evaluate dynamics of natural hazards with a focus on snow avalanches at Valle Las Trancas, in the Biobío region in Chile. Along this valley, natural hazards threaten not only the local human population, but also the numerous tourists attracted by outdoor recreational activities. Given the regional scarcity of documentary records, tree-ring methods were applied in order to reconstruct the local history of snow avalanches and debris flow events, which are the most important weather-related processes at respective tracks. A recent version of the model Rapid Mass MovementS (RAMMS), which includes influences of forest structure, was used to calculate different avalanche parameters such as runout distances and maximum pressures, taking into consideration the presence or absence of forest along the tracks as well as different modeled return periods. Our results show that local Nothofagus broadleaf forests contribute to a reduction of avalanche runout distances as well as impact pressure on present infrastructure, thus constituting a valuable ecosystem disaster risk reduction measure that can substitute or complement other traditional measures such as snow sheds.

The purpose of the work is the development of basic data structures, speed-efficient and memoryefficient algorithms for tracking changes in predefined decisions about sets of shortest paths on transport networks, notifications about which are received by autonomous coordinated transport agents with centralized or collective control. A characteristic feature of transport operations is the independence and asynchrony of the emergence of perturbations of optimal solutions, as well as the lack of global influence of individual perturbations on the set of all processes on the network. This clearly determines the feasibility of realizing the idea of reoptimizing existing solutions in real time as information is received about disturbances in the structure and parameters of the transport network, various restrictions on the use of existing shortest paths. In contrast to the classical problems of finding shortest paths on static or dynamic graphs, it is proposed to supplement the set of situations controlled by the observer by taking into account the associations of shortest path trees with agents that actually use such paths. This will improve the responsiveness of agent notification processes for timely switching to a new path. The space of search states is a dynamically generated bipartite sparse graph of the transport network, represented by a list of arcs. The basic algorithm for finding the shortest paths uses Dijkstra's scheme, but implements a bootstrapping method to generate the search result. The compactness of the representation of the observed forest of shortest paths is achieved by mapping individual trees of such a forest onto the projection of tree vertices in memory, where the position of each vertex corresponds to the distance from the tree root. The proposed version of the construction of the search procedure is based on the mechanisms existing in database management systems for creating different relational representations of the physical data model. This eliminates the need to solve technological problems of complexing heterogeneous models of dynamic transport networks, memory allocation. As a result, the specification of various rules for the logistics of transport operations is simplified, since such operations in terms of object-oriented models are easily determined by polymorphic classes of transitions between nodes of the transport network.

This paper is the first of two describing how soil macromorphological and chemical data can be combined with a minimum of hydrological data to distinguish between, and to quantify, past and present hydrological processes. These processes are relevant to both waterlogging and dryland salinity. The purpose of this first paper is to establish a methodological framework. It also describes the initial interpretation of the macromorphological features of the toposequence studied at Gatum on the Dundas Tablelands in western Victoria. A modified version of the soil feature–system–domain grouping method was used. Macromorphological data combined with only limited piezometric data showed that: (1) The soil feature–system–domain grouping method makes it possible to distinguish between the effects of past and present hydrological processes on soil macromorphology at Gatum. (2) Waterlogging of the surface horizons at Gatum is often caused by perching of soil water within the B-horizon (as opposed to on top of the B-horizon). Changes in soil structure and in colour of cutans and mottles can be an indicator of this first restricting layer. (3) It is likely that interpedal cracks and old tree root holes act as preferred paths for water to flow through this first restricting layer. (4) A second fresh perched water table can occur on top of the pallid zone. Where the pallid zone reaches close to the surface the two perched water tables may merge and cause a local increase in waterlogging, as indicated by local soil morphology. When this occurs, hillside seeps can occur quite high up on the slopes, even when there is no apparent irregularity in surface topography. (5) The permanent saline water table occurs on top of the bedrock and causes salting problems where it comes too close to the soil surface. Salting problems at the bottom of a slope are more severe where fresh perched water tables increase waterlogging On the basis of these findings the suitability of various management options to reduce waterlogging and salinisation is discussed. Further findings regarding restricting layers, flow paths through the soils, and relations between duration of saturation and soil morphological features, are discussed in a companion paper (by J. Brouwer and R. W. Fitzpatrick, pp. 927-946 in this issue).

AbstractForest resource management and ecological assessment have been recently supported by emerging technologies. Terrestrial laser scanning (TLS) is one that can be quickly and accurately used to obtain three-dimensional forest information, and create good representations of forest vertical structure. TLS data can be exploited for highly significant tasks, particularly the segmentation and information extraction for individual trees. However, the existing single-tree segmentation methods suffer from low segmentation accuracy and poor robustness, and hence do not lead to satisfactory results for natural forests in complex environments. In this paper, we propose a trunk-growth (TG) method for single-tree point-cloud segmentation, and apply this method to the natural forest scenes of Shangri-La City in Northwest Yunnan, China. First, the point normal vector and its Z-axis component are used as trunk-growth constraints. Then, the points surrounding the trunk are searched to account for regrowth. Finally, the nearest distributed branch and leaf points are used to complete the individual tree segmentation. The results show that the TG method can effectively segment individual trees with an average F-score of 0.96. The proposed method applies to many types of trees with various growth shapes, and can effectively identify shrubs and herbs in complex scenes of natural forests. The promising outcomes of the TG method demonstrate the key advantages of combining plant morphology theory and LiDAR technology for advancing and optimizing forestry systems.

Introduction This paper offers a survey of familiar popular music performers and songwriters who reference coffee in their work. It examines three areas of discourse: the psychoactive effects of caffeine, coffee and courtship rituals, and the politics of coffee consumption. I claim that coffee carries a cultural and musicological significance comparable to that of the chemical stimulants and consumer goods more readily associated with popular music. Songs about coffee may not be as potent as those featuring drugs and alcohol (Primack; Schapiro), or as common as those referencing commodities like clothes and cars (Englis; McCracken), but they do feature across a wide range of genres, some of which enjoy archetypal associations with this beverage. m.o.m.m.y. Needs c.o.f.f.e.e.: The Psychoactive Effect of Coffee The act of performing and listening to popular music involves psychological elements comparable to the overwhelming sensory experience of drug taking: altered perceptions, repetitive grooves, improvisation, self-expression, and psychological empathy—such as that between musician and audience (Curry). Most popular music genres are, as a result, culturally and sociologically identified with the consumption of at least one mind-altering substance (Lyttle; Primack; Schapiro). While the analysis of lyrics referring to this theme has hitherto focused on illegal drugs and alcoholic beverages (Cooper), coffee and its psychoactive ingredient caffeine have been almost entirely overlooked (Summer). The most recent study of drugs in popular music, for example, defined substance use as “tobacco, alcohol, marijuana, cocaine and other stimulants, heroin and other opiates, hallucinogens, inhalants, prescription drugs, over-the-counter drugs, and nonspecific substances” (Primack 172), thereby ignoring a chemical stimulant consumed by 90 per cent of adult Americans every day (Lovett). The wide availability of coffee and the comparatively mild effect of caffeine means that its consumption rarely causes harm. One researcher has described it as a ubiquitous and unobtrusive “generalised public activity […] ‘invisible’ to analysts seeking distinctive social events” (Cooper 92). Coffee may provide only a relatively mild “buzz”—but it is now accepted that caffeine is an addictive substance (Juliano) and, due to its universal legality, coffee is also the world’s most extensively traded and enthusiastically consumed psychoactive consumer product (Juliano 1). The musical genre of jazz has a longstanding relationship with marijuana and narcotics (Curry; Singer; Tolson; Winick). Unsurprisingly, given its Round Midnight connotations, jazz standards also celebrate the restorative impact of coffee. Exemplary compositions include Burke/Webster’s insomniac torch song Black Coffee, which provided hits for Sarah Vaughan (1949), Ella Fitzgerald (1953), and Peggy Lee (1960); and Frank Sinatra’s recordings of Hilliard/Dick’s The Coffee Song (1946, 1960), which satirised the coffee surplus in Brazil at a time when this nation enjoyed a near monopoly on production. Sinatra joked that this ubiquitous drink was that country’s only means of liquid refreshment, in a refrain that has since become a headline writer’s phrasal template: “There’s an Awful Lot of Coffee in Vietnam,” “An Awful Lot of Coffee in the Bin,” and “There’s an Awful Lot of Taxes in Brazil.” Ethnographer Aaron Fox has shown how country music gives expression to the lived social experience of blue-collar and agrarian workers (Real 29). Coffee’s role in energising working class America (Cooper) is featured in such recordings as Dolly Parton’s Nine To Five (1980), which describes her morning routine using a memorable “kitchen/cup of ambition” rhyme, and Don't Forget the Coffee Billy Joe (1973) by Tom T. Hall which laments the hardship of unemployment, hunger, cold, and lack of healthcare. Country music’s “tired truck driver” is the most enduring blue-collar trope celebrating coffee’s analeptic powers. Versions include Truck Drivin' Man by Buck Owens (1964), host of the country TV show Hee Haw and pioneer of the Bakersfield sound, and Driving My Life Away from pop-country crossover star Eddie Rabbitt (1980). Both feature characteristically gendered stereotypes of male truck drivers pushing on through the night with the help of a truck stop waitress who has fuelled them with caffeine. Johnny Cash’s A Cup of Coffee (1966), recorded at the nadir of his addiction to pills and alcohol, has an incoherent improvised lyric on this subject; while Jerry Reed even prescribed amphetamines to keep drivers awake in Caffein [sic], Nicotine, Benzedrine (And Wish Me Luck) (1980). Doye O’Dell’s Diesel Smoke, Dangerous Curves (1952) is the archetypal “truck drivin’ country” song and the most exciting track of its type. It subsequently became a hit for the doyen of the subgenre, Red Simpson (1966). An exhausted driver, having spent the night with a woman whose name he cannot now recall, is fighting fatigue and wrestling his hot-rod low-loader around hairpin mountain curves in an attempt to rendezvous with a pretty truck stop waitress. The song’s palpable energy comes from its frenetic guitar picking and the danger implicit in trailing a heavy load downhill while falling asleep at the wheel. Tommy Faile’s Phantom 309, a hit for Red Sovine (1967) that was later covered by Tom Waits (Big Joe and the Phantom 309, 1975), elevates the “tired truck driver” narrative to gothic literary form. Reflecting country music’s moral code of citizenship and its culture of performative storytelling (Fox, Real 23), it tells of a drenched and exhausted young hitchhiker picked up by Big Joe—the driver of a handsome eighteen-wheeler. On arriving at a truck stop, Joe drops the traveller off, giving him money for a restorative coffee. The diner falls silent as the hitchhiker orders up his “cup of mud”. Big Joe, it transpires, is a phantom trucker. After running off the road to avoid a school bus, his distinctive ghost rig now only reappears to rescue stranded travellers. Punk rock, a genre closely associated with recreational amphetamines (McNeil 76, 87), also features a number of caffeine-as-stimulant songs. Californian punk band, Descendents, identified caffeine as their drug of choice in two 1996 releases, Coffee Mug and Kids on Coffee. These songs describe chugging the drink with much the same relish and energy that others might pull at the neck of a beer bottle, and vividly compare the effects of the drug to the intense rush of speed. The host of “New Music News” (a segment of MTV’s 120 Minutes) references this correlation in 1986 while introducing the band’s video—in which they literally bounce off the walls: “You know, while everybody is cracking down on crack, what about that most respectable of toxic substances or stimulants, the good old cup of coffee? That is the preferred high, actually, of California’s own Descendents—it is also the subject of their brand new video” (“New Music News”). Descendents’s Sessions EP (1997) featured an overflowing cup of coffee on the sleeve, while punk’s caffeine-as-amphetamine trope is also promulgated by Hellbender (Caffeinated 1996), Lagwagon (Mr. Coffee 1997), and Regatta 69 (Addicted to Coffee 2005). Coffee in the Morning and Kisses in the Night: Coffee and Courtship Coffee as romantic metaphor in song corroborates the findings of early researchers who examined courtship rituals in popular music. Donald Horton’s 1957 study found that hit songs codified the socially constructed self-image and limited life expectations of young people during the 1950s by depicting conservative, idealised, and traditional relationship scenarios. He summarised these as initial courtship, honeymoon period, uncertainty, and parting (570-4). Eleven years after this landmark analysis, James Carey replicated Horton’s method. His results revealed that pop lyrics had become more realistic and less bound by convention during the 1960s. They incorporated a wider variety of discourse including the temporariness of romantic commitment, the importance of individual autonomy in relationships, more liberal attitudes, and increasingly unconventional courtship behaviours (725). Socially conservative coffee songs include Coffee in the Morning and Kisses in the Night by The Boswell Sisters (1933) in which the protagonist swears fidelity to her partner on condition that this desire is expressed strictly in the appropriate social context of marriage. It encapsulates the restrictions Horton identified on courtship discourse in popular song prior to the arrival of rock and roll. The Henderson/DeSylva/Brown composition You're the Cream in My Coffee, recorded by Annette Hanshaw (1928) and by Nat King Cole (1946), also celebrates the social ideal of monogamous devotion. The persistence of such idealised traditional themes continued into the 1960s. American pop singer Don Cherry had a hit with Then You Can Tell Me Goodbye (1962) that used coffee as a metaphor for undying and everlasting love. Otis Redding’s version of Butler/Thomas/Walker’s Cigarettes and Coffee (1966)—arguably soul music’s exemplary romantic coffee song—carries a similar message as a couple proclaim their devotion in a late night conversation over coffee. Like much of the Stax catalogue, Cigarettes and Coffee, has a distinctly “down home” feel and timbre. The lovers are simply content with each other; they don’t need “cream” or “sugar.” Horton found 1950s blues and R&B lyrics much more sexually explicit than pop songs (567). Dawson (1994) subsequently characterised black popular music as a distinct public sphere, and Squires (2002) argued that it displayed elements of what she defined as “enclave” and “counterpublic” traits. Lawson (2010) has argued that marginalised and/or subversive blues artists offered a form of countercultural resistance against prevailing social norms. Indeed, several blues and R&B coffee songs disregard established courtship ideals and associate the product with non-normative and even transgressive relationship circumstances—including infidelity, divorce, and domestic violence. Lightnin’ Hopkins’s Coffee Blues (1950) references child neglect and spousal abuse, while the narrative of Muddy Waters’s scorching Iodine in my Coffee (1952) tells of an attempted poisoning by his Waters’s partner. In 40 Cups of Coffee (1953) Ella Mae Morse is waiting for her husband to return home, fuelling her anger and anxiety with caffeine. This song does eventually comply with traditional courtship ideals: when her lover eventually returns home at five in the morning, he is greeted with a relieved kiss. In Keep That Coffee Hot (1955), Scatman Crothers supplies a counterpoint to Morse’s late-night-abandonment narrative, asking his partner to keep his favourite drink warm during his adulterous absence. Brook Benton’s Another Cup of Coffee (1964) expresses acute feelings of regret and loneliness after a failed relationship. More obliquely, in Coffee Blues (1966) Mississippi John Hurt sings affectionately about his favourite brand, a “lovin’ spoonful” of Maxwell House. In this, he bequeathed the moniker of folk-rock band The Lovin’ Spoonful, whose hits included Do You Believe in Magic (1965) and Summer in the City (1966). However, an alternative reading of Hurt’s lyric suggests that this particular phrase is a metaphorical device proclaiming the author’s sexual potency. Hurt’s “lovin’ spoonful” may actually be a portion of his seminal emission. In the 1950s, Horton identified country as particularly “doleful” (570), and coffee provides a common metaphor for failed romance in a genre dominated by “metanarratives of loss and desire” (Fox, Jukebox 54). Claude Gray’s I'll Have Another Cup of Coffee (Then I’ll Go) (1961) tells of a protagonist delivering child support payments according to his divorce lawyer’s instructions. The couple share late night coffee as their children sleep through the conversation. This song was subsequently recorded by seventeen-year-old Bob Marley (One Cup of Coffee, 1962) under the pseudonym Bobby Martell, a decade prior to his breakthrough as an international reggae star. Marley’s youngest son Damian has also performed the track while, interestingly in the context of this discussion, his older sibling Rohan co-founded Marley Coffee, an organic farm in the Jamaican Blue Mountains. Following Carey’s demonstration of mainstream pop’s increasingly realistic depiction of courtship behaviours during the 1960s, songwriters continued to draw on coffee as a metaphor for failed romance. In Carly Simon’s You’re So Vain (1972), she dreams of clouds in her coffee while contemplating an ostentatious ex-lover. Squeeze’s Black Coffee In Bed (1982) uses a coffee stain metaphor to describe the end of what appears to be yet another dead-end relationship for the protagonist. Sarah Harmer’s Coffee Stain (1998) expands on this device by reworking the familiar “lipstick on your collar” trope, while Sexsmith & Kerr’s duet Raindrops in my Coffee (2005) superimposes teardrops in coffee and raindrops on the pavement with compelling effect. Kate Bush’s Coffee Homeground (1978) provides the most extreme narrative of relationship breakdown: the true story of Cora Henrietta Crippin’s poisoning. Researchers who replicated Horton’s and Carey’s methodology in the late 1970s (Bridges; Denisoff) were surprised to find their results dominated by traditional courtship ideals. The new liberal values unearthed by Carey in the late 1960s simply failed to materialise in subsequent decades. In this context, it is interesting to observe how romantic coffee songs in contemporary soul and jazz continue to disavow the post-1960s trend towards realistic social narratives, adopting instead a conspicuously consumerist outlook accompanied by smooth musical timbres. This phenomenon possibly betrays the influence of contemporary coffee advertising. From the 1980s, television commercials have sought to establish coffee as a desirable high end product, enjoyed by bohemian lovers in a conspicuously up-market environment (Werder). All Saints’s Black Coffee (2000) and Lebrado’s Coffee (2006) identify strongly with the culture industry’s image of coffee as a luxurious beverage whose consumption signifies prominent social status. All Saints’s promotional video is set in a opulent location (although its visuals emphasise the lyric’s romantic disharmony), while Natalie Cole’s Coffee Time (2008) might have been itself written as a commercial. Busting Up a Starbucks: The Politics of Coffee Politics and coffee meet most palpably at the coffee shop. This conjunction has a well-documented history beginning with the establishment of coffee houses in Europe and the birth of the public sphere (Habermas; Love; Pincus). The first popular songs to reference coffee shops include Jaybird Coleman’s Coffee Grinder Blues (1930), which boasts of skills that precede the contemporary notion of a barista by four decades; and Let's Have Another Cup of Coffee (1932) from Irving Berlin’s depression-era musical Face The Music, where the protagonists decide to stay in a restaurant drinking coffee and eating pie until the economy improves. Coffee in a Cardboard Cup (1971) from the Broadway musical 70 Girls 70 is an unambiguous condemnation of consumerism, however, it was written, recorded and produced a generation before Starbucks’ aggressive expansion and rapid dominance of the coffee house market during the 1990s. The growth of this company caused significant criticism and protest against what seemed to be a ruthless homogenising force that sought to overwhelm local competition (Holt; Thomson). In response, Starbucks has sought to be defined as a more responsive and interactive brand that encourages “glocalisation” (de Larios; Thompson). Koller, however, has characterised glocalisation as the manipulative fabrication of an “imagined community”—whose heterogeneity is in fact maintained by the aesthetics and purchasing choices of consumers who make distinctive and conscious anti-brand statements (114). Neat Capitalism is a more useful concept here, one that intercedes between corporate ideology and postmodern cultural logic, where such notions as community relations and customer satisfaction are deliberately and perhaps somewhat cynically conflated with the goal of profit maximisation (Rojek). As the world’s largest chain of coffee houses with over 19,400 stores in March 2012 (Loxcel), Starbucks is an exemplar of this phenomenon. Their apparent commitment to environmental stewardship, community relations, and ethical sourcing is outlined in the company’s annual “Global Responsibility Report” (Vimac). It is also demonstrated in their engagement with charitable and environmental non-governmental organisations such as Fairtrade and Co-operative for Assistance and Relief Everywhere (CARE). By emphasising this, Starbucks are able to interpellate (that is, “call forth”, “summon”, or “hail” in Althusserian terms) those consumers who value environmental protection, social justice and ethical business practices (Rojek 117). Bob Dylan and Sheryl Crow provide interesting case studies of the persuasive cultural influence evoked by Neat Capitalism. Dylan’s 1962 song Talkin’ New York satirised his formative experiences as an impoverished performer in Greenwich Village’s coffee houses. In 1995, however, his decision to distribute the Bob Dylan: Live At The Gaslight 1962 CD exclusively via Starbucks generated significant media controversy. Prominent commentators expressed their disapproval (Wilson Harris) and HMV Canada withdrew Dylan’s product from their shelves (Lynskey). Despite this, the success of this and other projects resulted in the launch of Starbucks’s in-house record company, Hear Music, which released entirely new recordings from major artists such as Ray Charles, Paul McCartney, Joni Mitchell, Carly Simon and Elvis Costello—although the company has recently announced a restructuring of their involvement in this venture (O’Neil). Sheryl Crow disparaged her former life as a waitress in Coffee Shop (1995), a song recorded for her second album. “Yes, I was a waitress. I was a waitress not so long ago; then I won a Grammy” she affirmed in a YouTube clip of a live performance from the same year. More recently, however, Crow has become an avowed self-proclaimed “Starbucks groupie” (Tickle), releasing an Artist’s Choice (2003) compilation album exclusively via Hear Music and performing at the company’s 2010 Annual Shareholders’s Meeting. Songs voicing more unequivocal dissatisfaction with Starbucks’s particular variant of Neat Capitalism include Busting Up a Starbucks (Mike Doughty, 2005), and Starbucks Takes All My Money (KJ-52, 2008). The most successful of these is undoubtedly Ron Sexsmith’s Jazz at the Bookstore (2006). Sexsmith bemoans the irony of intense original blues artists such as Leadbelly being drowned out by the cacophony of coffee grinding machines while customers queue up to purchase expensive coffees whose names they can’t pronounce. In this, he juxtaposes the progressive patina of corporate culture against the circumstances of African-American labour conditions in the deep South, the shocking incongruity of which eventually cause the old bluesman to turn in his grave. Fredric Jameson may have good reason to lament the depthless a-historical pastiche of postmodern popular culture, but this is no “nostalgia film”: Sexsmith articulates an artfully framed set of subtle, sensitive, and carefully contextualised observations. Songs about coffee also intersect with politics via lyrics that play on the mid-brown colour of the beverage, by employing it as a metaphor for the sociological meta-narratives of acculturation and assimilation. First popularised in Israel Zangwill’s 1905 stage play, The Melting Pot, this term is more commonly associated with Americanisation rather than miscegenation in the United States—a nuanced distinction that British band Blue Mink failed to grasp with their memorable invocation of “coffee-coloured people” in Melting Pot (1969). Re-titled in the US as People Are Together (Mickey Murray, 1970) the song was considered too extreme for mainstream radio airplay (Thompson). Ike and Tina Turner’s Black Coffee (1972) provided a more accomplished articulation of coffee as a signifier of racial identity; first by associating it with the history of slavery and the post-Civil Rights discourse of African-American autonomy, then by celebrating its role as an energising force for African-American workers seeking economic self-determination. Anyone familiar with the re-casting of black popular music in an industry dominated by Caucasian interests and aesthetics (Cashmore; Garofalo) will be unsurprised to find British super-group Humble Pie’s (1973) version of this song more recognisable. Conclusion Coffee-flavoured popular songs celebrate the stimulant effects of caffeine, provide metaphors for courtship rituals, and offer critiques of Neat Capitalism. Harold Love and Guthrie Ramsey have each argued (from different perspectives) that the cultural micro-narratives of small social groups allow us to identify important “ethnographic truths” (Ramsey 22). Aesthetically satisfying and intellectually stimulating coffee songs are found where these micro-narratives intersect with the ethnographic truths of coffee culture. Examples include the unconventional courtship narratives of blues singers Muddy Waters and Mississippi John Hurt, the ritualised storytelling tradition of country performers Doye O’Dell and Tommy Faile, and historicised accounts of the Civil Rights struggle provided by Ron Sexsmith and Tina Turner. References Argenti, Paul. “Collaborating With Activists: How Starbucks Works With NGOs.” California Management Review 47.1 (2004): 91–116. Althusser, Louis. “Ideology and Ideological State Apparatuses.” Lenin and Philosophy and Other Essays. London: Monthly Review Press, 1971. Bridges, John, and R. Serge Denisoff. “Changing Courtship Patterns in the Popular Song: Horton and Carey revisited.” Popular Music and Society 10.3 (1986): 29–45. Carey, James. “Changing Courtship Patterns in the Popular Song.” The American Journal of Sociology 74.6 (1969): 720–31. Cashmere, Ellis. The Black Culture Industry. London: Routledge, 1997. “Coffee.” Theme Time Radio Hour hosted by Bob Dylan, XM Satellite Radio. 31 May 2006. Cooper, B. Lee, and William L. Schurk. “You’re the Cream in My Coffee: A Discography of Java Jive.” Popular Music and Society 23.2 (1999): 91–100. Crow, Sheryl. “Coffee Shop.” Beacon Theatre, New York City. 17 Mar. 1995. YouTube 1 Feb. 2012 ‹http://www.youtube.com/watch?v=j_-bDAjASQI ›. Curry, Andrew. “Drugs in Jazz and Rock Music.” Clinical Toxicology 1.2 (1968): 235–44. Dawson, Michael C. “A Black Counterpublic?: Economic Earthquakes, Racial Agenda(s) and Black Politics.” Public Culture 7.1 (1994): 195–223. de Larios, Margaret. “Alone, Together: The Social Culture of Music and the Coffee Shop.” URC Student Scholarship Paper 604 (2011). 1 Feb. 2012 ‹http://scholar.oxy.edu/urc_student/604›. Englis, Basil, Michael Solomon and Anna Olofsson. “Consumption Imagery in Music Television: A Bi-Cultural Perspective.” Journal of Advertising 22.4 (1993): 21–33. Fox, Aaron. Real Country: Music and Language in Working-Class Culture. Durham: Duke UP, 2004. Fox, Aaron. “The Jukebox of History: Narratives of Loss and Desire in the Discourse of Country Music.” Popular Music 11.1 (1992): 53–72. Garofalo, Reebee. “Culture Versus Commerce: The Marketing of Black Popular Music.” Public Culture 7.1 (1994): 275–87. Habermas, Jurgen. The Structural Transformation of the Public Sphere: An Inquiry Into a Category of Bourgeois Society. Cambridge: Polity Press, 1989. Hamilton, Andy. Aesthetics and Music. London: Continuum, 2007. Harris, Craig. “Starbucks Opens Hear Music Shop in Bellevue.” Seattle Post Intelligencer 23 Nov. 2006. 1 Feb. 2012 ‹http://www.seattlepi.com/business/article/Starbucks-opens-Hear-Music-shop-in-Bellevue-1220637.php›. Harris, John. “Lay Latte Lay.” The Guardian 1 Jul. 2005. 1 Feb. 2012 ‹http://www.guardian.co.uk/music/2005/jul/01/2?INTCMP=SRCH›. Holt, Douglas. “Why Do Brands Cause Trouble? A Dialectical Theory of Consumer Culture and Branding.” Journal of Consumer Research 29 (2002): 70–90. Horton, Donald. “The Dialogue of Courtship in Popular Songs.” American Journal of Sociology 62.6 (1957): 569–78. Jameson, Fredric. Postmodernism, or the Cultural Logic of Late Capitalism. Durham: Duke UP, 1991. Juliano, Laura, and Roland Griffiths. “A Critical Review of Caffeine Withdrawal: Empirical Validation of Symptoms and Signs, Incidence, Severity, and Associated Features.” Psychopharmacology 176 (2004): 1–29. Koller, Veronika. “‘The World’s Local Bank’: Glocalisation as a Strategy in Corporate Branding Discourse.” Social Semiotics 17.1 (2007): 111–31. Lawson, Rob A. Jim Crow’s Counterculture: The Blues and Black Southerners, 1890-1945 (Making the Modern South). Baton Rouge: Louisiana State UP, 2010. Love, Harold. “How Music Created A Public.” Criticism 46.2 (2004): 257–72. “Loxcel Starbucks Map”. Loxcel.com 1 Mar. 2012 ‹loxcel.com/sbux-faq.hmtl›. Lovett, Richard. “Coffee: The Demon Drink?” New Scientist 2518. 24 Sep. 2005. 1 Apr. 2012 ‹http://www.newscientist.com/article/mg18725181.700›. Lynskey, Dorian. “Stir It Up: Starbucks Has Changed the Music Industry with its Deals with Dylan and Alanis. What’s Next?”. The Guardian 6 Oct. 2005: 18. 1 Feb. 2012 ‹http://www.guardian.co.uk/music/2005/oct/06/popandrock.marketingandpr›. Lyttle, Thomas, and Michael Montagne. “Drugs, Music, and Ideology: A Social Pharmacological Interpretation of the Acid House Movement.” The International Journal of the Addictions 27.10 (1992): 1159–77. McCracken, Grant. “Culture and Consumption: A Theoretical Account of the Structure and Movement of the Cultural Meaning of Consumer Goods.” Journal of Consumer Research 13.1 (1986): 71–84. McNeil, Legs, and Gillian McCain. Please Kill Me: The Uncensored Oral History of Punk. London: Abacus, 1997. “New Music News” 120 Minutes MTV 28 Sep. 1986. 1 Feb. 2012 ‹http://www.youtube.com/watch?v=TnqjqXztc0o›. O’Neil, Valerie. “Starbucks Refines its Entertainment Strategy.” Starbucks Newsroom 24 Apr. 2008. 1 Feb. 2012 ‹http://news.starbucks.com/article_display.cfm?article_id=48›. Pincus, Steve. “‘Coffee Politicians Does Create’: Coffeehouses and Restoration Political Culture.” The Journal of Modern History 67 (1995): 807–34. Primack, Brian, Madeline Dalton, Mary Carroll, Aaron Agarwal, and Michael Fine. “Content Analysis of Tobacco, Alcohol, and Other Drugs in Popular Music.” Archives of Pediatrics & Adolescent Medicine 162.2 (2008): 169–75. 1 Feb. 2012 ‹http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3004676/›. Ramsey, Guthrie P. Race Music: Black Cultures from Bebop to Hip-Hop. Berkeley: U of California P, 2003. Rojek, Chris. Cultural Studies. Cambridge: Polity P, 2007. Rosenbaum, Jill, and Lorraine Prinsky. “Sex, Violence and Rock ‘N’ Roll: Youths’ Perceptions of Popular Music.” Popular Music and Society 11.2 (1987): 79–89. Shapiro, Harry. Waiting for the Man: The Story of Drugs and Popular Music. London: Quartet Books, 1988. Singer, Merrill, and Greg Mirhej. “High Notes: The Role of Drugs in the Making of Jazz.” Journal of Ethnicity in Substance Abuse 5.4 (2006):1–38. Squires, Catherine R. “Rethinking the Black Public Sphere: An Alternative Vocabulary for Multiple Public Spheres.” Communication Theory 12.4 (2002): 446–68. Thompson, Craig J., and Zeynep Arsel. “The Starbucks Brandscape and Consumers’ (Anticorporate) Experiences of Glocalization.” Journal of Consumer Research 31 (2004.): 631–42. Thompson, Erik. “Secret Stash Records Releases Forgotten Music in Stylish Packages: Meet Founders Cory Wong and Eric Foss.” CityPages 18 Jan. 2012. 1 Feb. 2012 ‹http://www.citypages.com/2012-01-18/music/secret-stash-records-releases-forgotten-music-in-stylish-packages/›.Tickle, Cindy. “Sheryl Crow Performs at Starbucks Annual Shareholders Meeting.” Examiner.com24 Mar. 2010. 1 Feb. 2012 ‹http://www.examiner.com/starbucks-in-national/sheryl-crow-performs-at-starbucks-annual-shareholders-meeting-photos›.Tolson, Gerald H., and Michael J. Cuyjet. “Jazz and Substance Abuse: Road to Creative Genius or Pathway to Premature Death?”. International Journal of Law and Psychiatry 30 (2007): 530–38. Varma, Vivek, and Ben Packard. “Starbucks Global Responsibility Report Goals and Progress 2011”. Starbucks Corporation 1 Apr. 2012 ‹http://assets.starbucks.com/assets/goals-progress-report-2011.pdf›. Werder, Olaf. “Brewing Romance The Romantic Fantasy Theme of the Taster’s Choice ‘Couple’ Advertising Campaign.” Critical Thinking About Sex, Love, And Romance In The Mass Media: Media Literacy Applications. Eds. Mary-Lou Galician and Debra L. Merskin. New Jersey: Taylor & Francis, 2009. 35–48. Wilson, Jeremy “Desolation Row: Dylan Signs With Starbucks.” The Guardian 29 Jun. 2005. 1 Feb. 2012 ‹http://www.guardian.co.uk/world/2005/jun/29/bobdylan.digitalmedia?INTCMP=SRCH›. Winick, Charles. “The Use of Drugs by Jazz Musicians.” Social Problems 7.3 (1959): 240–53.

PurposeThe purpose of this paper is to evaluate the role of corporate social responsibility (CSR) on small and medium-size enterprises’ (SMEs') performance by exploring the role of mediating variables such as brand trust (BT) and brand loyalty (BL) in the context of an emerging market.Design/methodology/approachBased on a extend literature review on CSR, BT and BL studies, the authors evaluate the impact of those construct on SMEs’ performance in an emerging market. The paper follows a quantitative approach. In total, 247 responses were collected from 300 samples. The Smart Partial Least Squares SEM (version) was used to analyze the data of the SMEs of Vietnam in the year 2020.FindingsThe findings revealed significant and positive relationships among the variables in the model, such as CSR and firm performance (FP), CSR and BT, CSR and BL, as well as the mediating effect of BT and BL between CSR and firm performance.Research limitations/implicationsFirst, the sample was composed of small business from different segments, thus the respondents' perspective about CSR can differ according the impact of the business on society. Therefore, future studies could address businesses from a single segment to get a deeper understanding of their knowledge and involvement with CSR. Second, a cross-cultural study in emerging countries can be a rich venue for future research. Third, this study was developed through a quantitative approach; thus, the future research can apply qualitative approach or mixed methods to extend the study findings.Practical implicationsManagerial level of firm should prioritize noneconomic-related CSR; however, those will ultimately drive financial indicators of FP. The result is reasonable because firm simultaneously keeps committed with its stakeholders by delivering the committed qualification, transparency in operation and consistency in communication, environment respect, employee development and social welfare integrated directly into business activities. Those will result in creating love, trust and admiration from stakeholder, customers for brand and firms will get their engagement and support in many ways. This implication suggests that firm should incorporate CSR strategy into their core business activities and practice properly toward its stakeholders.Social implicationsThis study contributes to the CSR literature in emerging context by shedding light on the roles of CSR in FP with the mediation roles of BT and BL. Most CSR studies focused on Western context as developed economy, thus less attention has been paid for emerging economy. While there is increasing interest CSR in Vietnam, traditional culture and its distinctive economic and political structure has had a great influence on CSR in Vietnam. Thus, this study is important and meaningful for business practitioners, investors, shareholders and policymakers toward sustainable development for firms and Vietnam as a whole.Originality/valueTo the best of the authors’ knowledge, this is the first study that explores the mediating role of BT and BL between CSR and FP for SMEs. The findings of this study may be of great implications to entrepreneurs, top management with respect to strategic perspectives to drive their businesses and to improve their FP in a sustainable direction in contexts of emerging markets. In addition, this finding may be of great interest to motive SMEs' managers to engage with CSR actions where those businesses are situated during and after the COVID-19 pandemic. By that understanding, Government may consider for policy reforms/innovation/groundbreaking to leverage businesses to promote their strengths toward sustainable development in the new economic settings. The findings of this study may be of significant contribution to SMEs in Vietnam and in others in emerging economies.

One of the main tasks of structural biology is comparing the structure of proteins. Comparisons of protein structure can determine their functional similarities. Multigraph alignment is a useful tool for identifying functional similarities based on structural analysis. This article proposes a new algorithm for aligning protein binding sites called ACOTS-MGA. This algorithm is based on the memetic scheme. It uses the ACO method to construct a set of solutions, then selects the best solution for implementing Tabu Search to improve the solution quality. Experimental results have shown that ACOTS-MGA outperforms state-of-the-art algorithms while producing alignments of better quality.KeywordsMultiple Graph Alignment, Tabu Search, Ant Colony Optimization, local search, memetic algorithm, SMMAS pheromone update rule, protein active sitesReferencesE. Todd, C. A. Orengo, and J. M. Thornton, “Evolution of function in protein superfamilies, from a structural perspective,” J. Mol. Biol., vol. 307, no. 4, pp. 1113–1143, Apr. 2001.S. F. Altschul et al., “Gapped BLAST and PSI-BLAST: a new generation of protein database search programs,” Nucleic Acids Res., vol. 25, pp. 3389–3402, 1997.R. C. Edgar, “MUSCLE: multiple sequence alignment with high accuracy and high throughput,” Nucleic Acids Res., vol. 32, no. 5, pp. 1792–1797, Mar. 2004.J. D. Thompson, D. G. Higgins, and T. J. Gibson, “CLUSTAL W: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalties and weight matrix choice,” Nucleic Acids Res., vol. 22, no. 22, pp. 4673–4680, Nov. 1994.M. Larkin, G. Blackshields, N. Brown, … R. C.-, and undefined 2007, “Clustal W and Clustal X version 2.0,” academic.oup.com.C. Notredame, D. G. Higgins, and J. Heringa, “T-coffee: a novel method for fast and accurate multiple sequence alignment,” J. Mol. Biol., vol. 302, no. 1, pp. 205–217, Sep. 2000.K. Sjolander, “Phylogenomic inference of protein molecular function: advances and challenges,” Bioinformatics, vol. 20, no. 2, pp. 170–179, Jan. 2004.T. Fober, M. Mernberger, G. Klebe, and E. Hüllermeier, “Evolutionary construction of multiple graph alignments for the structural analysis of biomolecules,” Bioinformatics, vol. 25, no. 16, pp. 2110–2117, 2009.M. Mernberger, G. Klebe, and E. Hullermeier, “SEGA: Semiglobal Graph Alignment for Structure-Based Protein Comparison,” IEEE/ACM Trans. Comput. Biol. Bioinforma., vol. 8, no. 5, pp. 1330–1343, Sep. 2011.D. Shasha, J. T. L. Wang, and R. Giugno, “Algorithmics and applications of tree and graph searching,” in Proceedings of the twenty-first ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems - PODS ’02, 2002, p. 39.R. V. Spriggs, P. J. Artymiuk, and P. Willett, “Searching for Patterns of Amino Acids in 3D Protein Structures,” J. Chem. Inf. Comput. Sci., vol. 43, no. 2, pp. 412–421, Mar. 2003.D. Conte, P. Foggia, C. Sansone, And M. Vento, “Thirty years of graph matching in pattern recognition,” Int. J. Pattern Recognit. Artif. Intell., vol. 18, no. 3, pp. 265–298, May 2004.K. Kinoshita and H. Nakamura, “Identification of the ligand binding sites on the molecular surface of proteins,” Protein Sci., vol. 14, no. 3, pp. 711–718, Mar. 2005.O. Kuchaiev and N. Pržulj, “Integrative network alignment reveals large regions of global network similarity in yeast and human,” Bioinformatics, vol. 27, 2011.Xifeng Yan, Feida Zhu, Jiawei Han, and P. S. Yu, “Searching Substructures with Superimposed Distance,” in 22nd International Conference on Data Engineering (ICDE’06), 2006, pp. 88–88.X. Yan, P. S. Yu, and J. Han, “Substructure similarity search in graph databases,” in Proceedings of the 2005 ACM SIGMOD international conference on Management of data - SIGMOD ’05, 2005, p. 766.S. Zhang, M. Hu, and J. Yang, “TreePi: A Novel Graph Indexing Method,” in 2007 IEEE 23rd International Conference on Data Engineering, 2007, pp. 966–975.A. E. Aladag and C. Erten, “SPINAL: scalable protein interaction network alignment,” Bioinformatics, vol. 29, pp. 917–924, 2013.S. Schmitt, D. Kuhn, and G. Klebe, “A New Method to Detect Related Function Among Proteins Independent of Sequence and Fold Homology,” J. Mol. Biol., vol. 323, no. 2, pp. 387–406, Oct. 2002.M. Hendlich, A. Bergner, J. Günther, and G. Klebe, “Relibase: Design and Development of a Database for Comprehensive Analysis of Protein–Ligand Interactions,” J. Mol. Biol., vol. 326, no. 2, pp. 607–620, Feb. 2003.N. Weskamp, E. Hüllermeier, D. Kuhn, and G. Klebe, “Multiple graph alignment for the structural analysis of protein active sites,” IEEE/ACM Trans. Comput. Biol. Bioinforma., vol. 4, no. 2, pp. 310–320, 2007.T. N. Ha, D. D. Dong, and H. X. Huan, “An efficient ant colony optimization algorithm for Multiple Graph Alignment,” in 2013 International Conference on Computing, Management and Telecommunications (ComManTel), 2013, pp. 386–391. F. Neri, Handbook of memetic algorithms, vol. 379. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011.M. Gong, Z. Peng, L. Ma, and J. Huang, “Global Biological Network Alignment by Using Efficient Memetic Algorithm,” IEEE/ACM Trans. Comput. Biol. Bioinforma., vol. 13, no. 6, pp. 1117–1129, Nov. 2016.J. M. Caldonazzo Garbelini, A. Y. Kashiwabara, and D. S. Sanches, “Sequence motif finder using memetic algorithm,” BMC Bioinformatics, vol. 19, 2018. L. Correa, B. Borguesan, C. Farfan, M. Inostroza-Ponta, and M. Dorn, “A Memetic Algorithm for 3-D Protein Structure Prediction Problem,” IEEE/ACM Trans. Comput. Biol. Bioinforma., pp. 1–1, 2016.H. Tran Ngoc, D. Do Duc, and H. Hoang Xuan, “A novel ant based algorithm for multiple graph alignment,” in 2014 International Conference on Advanced Technologies for Communications (ATC 2014), 2014, pp. 181–186. H. X. Huan, N. Linh-Trung, H.-T. Huynh, and others, “Solving the Traveling Salesman Problem with Ant Colony Optimization: A Revisit and New Efficient Algorithms,” REV J. Electron. Commun., vol. 2, no. 3–4, 2013. D. Do Duc, H. Q. Dinh, and H. Hoang Xuan, “On the Pheromone Update Rules of Ant Colony Optimization Approaches for the Job Shop Scheduling Problem,” 2008, pp. 153-160.

I examined variation in community structure, species richness, biomass and abundance of Coprini dung beetles from 45 trapping sites in meadows, 35-year-old secondary forests and primary forests in tropical, high-elevation karst ecosystems of Puluong Nature Reserve, Thanh Hoa Province. My main aim was to explore community response to the influence of land use change. By comparing the structure and community attributes of the beetles between 35-year-old secondary forests and primary forests, I expected to give indications on the conservation value of the old secondary forests for beetle conservation. Community structure significantly differed among land-use types. Species richness, abundance and biomass were significantly higher in forest habitats than in meadows. The cover of ground vegetation, soil clay content and tree diameter are important factors structuring Coprini communities in karst ecosystems of Pu Luong. The secondary forests, after 35 years of regrowth showed similarities in species richness, abundance and biomass to primary forests. This gives hope for the recovery of Coprini communities during forest succession.
 Keywords: Coprini, dung beetles, karst ecosystems, land use change, Pu Luong.
 References:
 [1] I. Hanski, Y. Cambefort, Dung beetle ecology, Princeton University Press, Princeton, 1991.[2] C.H. Scholtz, A.L.V. Davis, U. Kryger, Evolutionary biology and conservation of dung beetles, Pensoft Publisher, Bulgaria, 2009.[3] E. Nichols, S. Spector, J. Louzada, T. Larsen, S. Amezquita, M.E. Favila et al., Ecological functions and ecosystem services provided by Scarabaeinae dung beetles, Biol. Conserv. 141 (2008) 1461-1474. https://doi.org/10.1016/j.biocon.2008.04.011.[4] H.K. Gibbsa, A.S. Rueschb, F. Achardc, M.K. Claytond, P. Holmgrene, N. Ramankuttyf, J.A. Foleyg, Tropical forests were the primary sources of new agricultural land in the 1980s and 1990s, Proc Natl Acad Sci USA 107 (2010) 16732-16737. https://doi.org/10.1073/pnas.0910275107.[5] L.D. Audino, J. Louzada, L. Comita, Dung beetles as indicators of tropical forest restoration success: is it possible to recover species and functional diversity? Biol. Conserv. 169 (2014) 248-257. https://doi.org/10.1016/j.biocon.2013.11.023.[6] W. Beiroz, E.M. Slade, J. Barlow, J.M. Silveira, J. Louzada, E. Sayer, Dung beetle community dynamics in undisturbed tropical forests: implications for ecological evaluations of land-use change, Insect Conservation and Diversity 10 (2017) 94-106. https://doi.org/10.1111/icad.12206.[7] S. Boonrotpong, S. Sotthibandhu, C. Pholpunthin, Species composition of dung beetles in the primary and secondary forests at Ton Nga Chang Wildlife Sanctuary, ScienceAsia 30 (2004) 59-65. https: // doi.org/10.2306/scienceasia1513-1874.2004.30.059.[8] S. Boonrotpong, S. Sotthibandhu, C. Satasook, Species turnover and diel flight activity of species of dung beetles, Onthophagus, in the tropical lowland forest of peninsular Thailand, Journal of Insect Science 12 (77) (2012). https://doi.org/10. 1673/031.012.7701.[9] A.J. Davis, J.D. Holloway, H. Huijbregts, J. Krikken, A.H. Kirk-Spriggs, S.L. Sutton, Dung beetles as indicators of change in the forests of northern Borneo, Journal of Applied Ecology 38 (2001) 593-616. https://doi.org/10.1046/j.1365-2664.2001.00619.x.[10] K. Frank, M. Hülsmann, T. Assmann, T. Schmitt, N. Blüthgen, Land use affects dung beetle communities and their ecosystem service in forests and grasslands, Agriculture, Ecosystems & Environment 243 (2017) 114-122.[11] T.A. Gardner, M.I.M. Hernández, J. Barlow, C.A. Peres, Understanding the biodiversity consequences of habitat change: the value of secondary and plantation forests for neotropical dung beetles, Journal of Applied Ecology 45 (2008) 883-893. https://doi.org/10.1111/j.1365-2664. 2008.01454.x.[12] L. Hayes, D.J. Mann, A.L. Monastyrskii, O.T. Lewis, Rapid assessments of tropical dung beetle and butterfly assemblages: contrasting trends along a forest disturbance gradient, Insect Conservation and Diversity 2 (2009) 194-203. https://doi.org/ 10.1111/j.1752-4598.2009.00058.x.[13] I. Quintero, T. Roslin, Rapid recovery of dung beetle communities following habitat fragmentation in central Amazonia, Ecology 12 (2005) 3303-3311. https://doi.org/10.1890/04-1960.[14] Shahabuddin, C.H. Schulze, T. Tscharntke, Changes of dung beetle communities from rainforests towards agroforestry systems and annual cultures in Sulawesi (Indonesia), Biodiversity and Conservation 14 (2005) 863-877. https://doi.org/10.1007/s10531-004-0654-7.[15] K. Vulinec, Dung beetle communities and seed dispersal in primary forest and disturbed land in Amazonia, Biotropica 34 (2002) 297-309. https:// doi.org/10.1111/j.1744-7429.2002.tb00541.x.[16] K. Vulinec, J.E. Lambert, D.J. Mellow, Primate and dung beetle communities in secondary growth rain forests: implications for conservation of seed dispersal systems, International Journal of Primatology 27 (2006) 855-879. https://doi.org/10. 1007/s10764-006-9027-2.[17] E. Nichols, T. Larsen, S. Spector, A.L. Davis, F. Escobar, M. Favila, K. Vulinec, Global dung beetle response to tropical forest modification and fragmentation: a quantitative literature review and meta-analysis, Biological Conservation 137 (2007) 1-19. https://doi.org/10.1016/j.biocon.2007.01.023.[18] R. Clements, N.S. Sodhi, M. Schilthuizen, K.L.Ng. Peter, Limestone karsts of Southeast Asia: imperiled arks of biodiversity, BioScience 56 (2006) 733-742. https://doi.org/10.1641/0006-3568(2006)56[733:LKOSAI]2.0.CO;2.[19] M. Schilthuizen, T.S. Liew, B.B. Elahan, I. Lackman-Ancrenaz, Effects of karst forest degradation on pulmonate and prosobranch land snail communities in Sabah, Malaysian Borneo, Conservation Biology 19 (2005) 949-954. https://doi.org/10.1111/j.1523-1739.2005.00209.x.[20] C. Costa, V.H.F. Oliveira, R. Maciel, W. Beiroz, V. Korasaki, J. Louzada, Variegated tropical landscapes conserve diverse dung beetle communities, PeerJ 5 (2017). https://doi.org/10. 7717/peerj.3125.[21] R.P. Salomão, D. González-Tokmana, W. Dáttilo, J.C. López-Acosta, M.E. Favila, Landscape structure and composition define the body condition of dung beetles (Coleoptera: Scarabaeinae) in a fragmented tropical rainforest, Ecol. Indic. 88 (2018) 144-151. https://doi.org/ 10.1016/j.ecolind.2018.01.033.[22] R.C. Campos, M.I.M. Hernández, Dung beetle assemblages (Coleoptera, Scarabaeinae) in Atlantic forest fragments in southern Brazil, Revista Brasileira de Entomologia 57 (2013) 47-54.[23] E. Nichols, Fear begets function in the ‘brown’ world of detrital food webs, Journal of Animal Ecology 82(4) (2013) 717-720. https://doi.org/ 10.1111/1365-2656.12099.[24] Tixier, J.M.G. Bloor, J.-P. Lumaret, Species-specific effects of dung beetle abundance on dung removal and leaf litter decomposition, Acta Oecologica 69 (2015) 31-34. https://doi.org/10. 1016/j.actao.2015.08.003.[25] P.M. Farias, L. Arellano, M.I.M. Hernández, S.L. Ortiz, Response of the copro- necrophagous beetle (Coleoptera: Scarabaeinae) assemblage to a range of soil characteristics and livestock management in a tropical landscape, Journal of Insect Conservation 19 (2015) 947-960. https://doi.org/10.1007/s 108 41-015-9812-3.[26] D.C. Osberg, B.M. Doube, S.A. Hanrahan, Habitat specificity in African dung beetles: the effect of soil type on the survival ofdung beetle immatures (Coleoptera: Scarabaeidae), Tropical Zoology 7 (1994) 1-10. https://doi.org/10.1080/03946975. 1994.10539236.[27] E. Andresen, S. Laurance, Possible indirect effects of mammal hunting on dung beetle assemblages in Panama, Biotropica 39 (2006) 141-146. https://doi.org/10.1111/j.1744-7429.2006.00239.x.[28] H. Enari, S. Koike, H. Sakamaki, Influences of different large mammalian fauna on dung beetle diversity in beech forests, Journal of Insect Science 13(54)(2013).https://doi.org/10.1673/031.013. 5401.[29] A. Estrada, D.A. Anzuras, R. Coastes-Estrada, Tropical forest fragmentation, howler monkeys (Alouatta palliata) and dung beetles at Los Tuxtlas, Mexico, American Journal of Primatology 48 (1999) 353-362.[30] C.A. Harvey, J. Gonzalez, E. Somarriba, Dung beetle and terrestrial mammal diversity in forests, indigenous agroforestry systems and plantain monocultures in Talamanca, Costa Rica, Biodiversity and Conservation 15 (2006) 555-585. https://doi.org/10.1007/s10531-005-2088-2.[31] K.V. Nguyễn, T.H. Nguyễn, K.L. Phan, T.H. Nguyễn, Bản đồ sinh khí hậu Việt Nam, Nhà xuất bản Đại học Quốc gia, Hà Nội, 2000.[32] E.J. Sterling, M.M. Hurley, M.D. Le, Vietnam–a natural history, Yale University Press, New Haven, CT, 2006.[33] T. Do, Characteristics of karst ecosystems of Vietnam and their vulnerability to human impact, Acta Geologica Sinica 75 (2001) 325-329.[34] V.T. Thái, Thảm thực vật rừng Việt Nam, Nhà xuất bản Khoa học và kỹ thuật, Hà Nội, 1978. [35] P.G.d. Silva, M.I.M. Hernández, Spatial patterns of movement of dung beetle species in a tropical forest suggest a new trap spacing for dung beetle biodiversity studies. PloS ONE 10 (5) (e0126112) (2015). https://doi.org/10.1371/journal.pone.0126112.[36] V.B. Bui, K. Dumack, M. Bonkowski, Two new species and one new record for the genus Copris (Coleoptera: Scarabaeidae: Scarabaeinae) from Vietnam with a key to Vietnamese species, European Journal of Entomology 115 (2018) 167-191. https://doi.org/10.14411/eje.2018.016.[37] V.B. Bui, M. Bonkowski, Synapsis puluongensis sp. nov. and new data on the poorly known species Synapsis horaki (Coleoptera: Scarabaeidae) from Vietnam with a key to Vietnamese species. Acta Entomologica Musei Nationalis Pragae 58 (2018) 407-418. https://doi.org/10.2478/aemnp-2018-0032.[38] O.N. Kabakov, A. Napolov, Fauna and ecology of Lamellicornia of subfamily Scarabaeinae of Vietnam and some parts of adjacent countries: South China, Laos, and Thailand, Latvijas Entomologs 37 (1999) 58-96.[39] J.E. Brower, J.H. Zar, C.N. Von-Ende, Field and laboratory methods for general ecology, 4th ed. Boston, WCB. McGraw-Hill, 1998.[40] R Core Team, R: A Language and Environment for Statistical Computing. https://www.R-project.org/ (accessed 15 May 2017).[41] J. Oksanen, F.G. Blanchet, M. Friendly, R. Kindt, P. Legendre, D. McGlinn et al., Vegan: Community Ecology Package, R package version 2.4–5 (2017). https://cran.r-project.org/web/packages/vegan.[42] R. Clements, P.K.L. Nga, X.X. Lub, S. Ambu, M. Schilthuizen, C.J.A. Bradshaw, Using biogeographical patterns of endemic land snails to improve conservation planning for limestone karsts, Biological Conservation 141 (2751e2764) (2008). https://doi.org/10.1016/j.biocon.2008.08.011.[43] P.K.L. Ng, D. Guinot, T.M. Iliffe, Revision of the anchialine varunine crabs of the genus Orcovita Ng & Tomascik, 1994 (Crustacea: Decapoda: Brachyura: Grapsidae), with descriptions of four new species, Raffles Bulletin of Zoology 44 (1996) 109-134.[44] P.K.L. Ng, Cancrocaeca xenomorpha, new genus and species, a blind troglobitic freshwater hymenosomatid (Crustacea: Decapoda: Brachyura) from Sulawesi, Indonesia, Raffles Bulletin of Zoology 39 (1991) 59-73.[45] V. Balthasar, Monographie der Scarabaeidae und Aphodiidae der Palaearktischen und Orientalischen Region. Coleoptera: Lamellicornia. Band 1. Allgemeiner Teil, Systematischer Teil: 1. Scarabaeinae, 2. Coprinae (Pinotini, Coprini). Verlag der Tschechoslowakischen Akademie der Wissenschaften, Prag, 1963.[46] Y. Hanboonsong, K. Masumoto, T. Ochi, Dung beetles (Coleoptera, Scarabaeidae) of Thailand. Part 5. Genera Copris and Microcopris (Coprini), Elytra 31 (2003) 103-124.[47] D. Král, J. Rejsek, Synapsis naxiorum sp. n. from Yunnan (Coleoptera: Scarabaeidae), Acta Societatis Zoologicae Bohemicae 64 (2000) 267-270.[48] D. Král, Distribution and taxonomy of some Synapsis species, with description of S. strnadi sp. n. from Vietnam (Coleoptera: Scarabaeidae), Acta Societatis Zoologicae Bohemicae 66 (2002) 279-289.[49] T. Ochi, M. Kon, Notes on the coprophagous scarab beetles (Coleoptera, Scarabaeidae) from Southeast Asia (IV). A new horned species of Microcopris from Vietnam and a new subspecies of Copris erratus from Peleng off Sulawesi, Kogane 5 (2004) 25-30.[50] T. Ochi, M. Kon, H.T. Pham, Five new taxa of Copris (Coleoptera: Scarabaeidae) from Vietnam and Laos, Giornale Italiano di Entomologia 15 (64) (2019) 435-446.[51] T. Ochi, M. Kon, H.T. Pham, Two new species of Copris (Copris) (Coleoptera: Scarabaeidae) and a new subspecies of Phelotrupes (Sinogeotrupes) strnadi Král, Malý & Schneider (Coleoptera: Geotrupidae) from Vietnam, Giornale Italiano di Entomologia 15 (63) (2018) 159-168.[52] J. Zídek, S. Pokorný, Review of Synapsis Bates (Scarabaeidae: Scarabaeinae: Coprini), with description of a new species, Insecta Mundi 142 (2010) 1-21.[53] H.F. Howden, V.G. Nealis, Observations on height of perching in some tropical dung beetles (Scarabaeidae), Biotropica 10 (1978) 43-46. https://doi.org/10.1111/j.1752-4598.2009.00058.x.[54] T.H. Larsen, A. Lopera, A. Forsyth, Understanding trait-dependent community disassembly: Dung beetles, density functions, and forest fragmentation, Conservation Biology 22 (2008) 1288-1298. https://doi.org/10.1111/j.1523-1739.2008.00969.x.[55] S.B. Peck, A. Forsyth, Composition, structure, and competitive behaviour in a guild of Ecuadorian rain forest dung beetles (Coleoptera; Scarabaeidae), Canadian Journal of Zoology 60(7) (1982) 1624-1634. https://doi.org/10.1139/z82-213.

I have decided to launch a campaign against the skyscraper, that hideous, mediocre form of architecture…. Today we only have an empty version of it, only competing in height.— Rem Koolhaas, “Kool Enough for Beijing?”Figure 1: The CCTV Headquarters—A Courtyard in the Air. Cher Coad, 2020.Introduction: An Anomaly within an Anomaly Construction of Beijing’s China Central Television Headquarters (henceforth CCTV Headquarters) began in 2004 and the building was officially completed in 2012. It is a project by the Office for Metropolitan Architecture (OMA) headed by Rem Koolhaas (1944-), who has been called “the coolest, hippest, and most cutting-edge architect on the planet”(“Rem Koolhaas Biography”). The CCTV Headquarters is a distinctive feature of downtown Beijing and is heavily associated in the Western world with 21st-century China. It is often used as the backdrop for reports from the China correspondent for the Australian Broadcasting Corporation (ABC), Bill Birtles. The construction of the CCTV Headquarters, however, was very much an international enterprise. Koolhaas himself is Dutch, and the building was one of the first projects the OMA did outside of America after 9/11. As Koolhaas describes it: we had incredible emphasis on New York for five years, and America for five years, and what we decided to do after September 11 when we realized that, you know, things were going to be different in America: [was] to also orient ourselves eastwards [Koolhaas goes on to describe two projects: the Hermitage Museum, St. Petersburg, Russia and the CCTV Headquarters]. (Rem Koolhaas Interview) Problematically, Koolhaas claims that the building we created for CCTV could never have been conceived by the Chinese and could never have been built by Europeans. It is a hybrid by definition. It was also a partnership, not a foreign imposition…. There was a huge Chinese component from the very beginning. We tried to do a building that conveys that it has emerged from the local situation. (Fraioli 117) Our article reinterprets this reading. We suggest that the OMA’s “incredible emphasis” on America—home of the world’s first skyscraper: the Home Insurance Building built in 1885 in Chicago, Illinois—pivotally spills over into its engagement with China. The emergence of the CCTV Headquarters “from the local situation”, such as it is, is more in spite of Koolhaas’s stated “hybrid” approach than because of it, for what’s missing from his analysis of the CCTV Headquarters’ provenance is the siheyuan or classical Chinese courtyard house. We will argue that the CCTV Headquarters is an anomaly within an anomaly in contemporary Beijing’s urban landscape, to the extent that it turns the typologies of both the (vertical, American) skyscraper and the (horizontal, Chinese) siheyuan on a 90 degree angle. The important point to make here, however, is that these two anomalous elements of the building are not of the same order. While the anomalous re-configuration of the skyscraper typology is clearly part of Koolhaas’s architectural manifesto, it is against his architectural intentionality that the CCTV Headquarters sustains the typology of the siheyuan. This bespeaks the persistent and perhaps functional presence of traditional Chinese architecture and urbanism in the building. Koolhaas’s building contains both starkly evident and more secretive anomalies. Ironically then, there is a certain truth in Koolhaas’s words, beneath the critique we made of it above as an example of American-dominated, homogenising globalisation. And the significance of the CCTV Headquarters’ hybridity as both skyscraper and siheyuan can be elaborated through Daniel M. Abramson’s thesis that a consideration of unbuilt architecture has the potential to re-open architecture to its historical conditions. Roberto Schwarz argues that “forms are the abstract of specific social relationships” (53). Drawing on Schwarz’s work and Abramson’s, we conclude that the historical presence—as secretive anomaly—of the siheyuan in the CCTV Headquarters suggests that the building’s formal debt to the siheyuan (more so than to the American skyscraper) may continue to unsettle the “specific social relationship” of Chinese to Western society (Schwarz 53). The site of this unsettlement, we suggest, is data. The CCTV Headquarters might well be the most data-rich site in all of China—it is, after all, a monumental television station. Suggestively, this wealth of airborne data is literally enclosed within the aerial “courtyard”, with its classical Chinese form, of the CCTV Headquarters. This could hardly be irrelevant in the context of the geo-politics of globalised data. The “form of data”, to coin a phrase, radiates through all the social consequences of data flow and usage, and here the form of data is entwined with a form always already saturated with social consequence. The secretive architectural anomaly of Koolhaas’s building is thus a heterotopic space within the broader Western engagement with China, so much of which relates to flows and captures of data. The Ubiquitous Siheyuan or Classical Chinese Courtyard House According to Ying Liu and Adenrele Awotona, “the courtyard house, a residential compound with buildings surrounding a courtyard on four (or sometimes three) sides, has been representative of housing patterns for over one thousand years in China” (248). Liu and Awotona state that “courtyard house patterns could be found in many parts of China, but the most typical forms are those located in the Old City in Beijing, the capital of China for over eight hundred years” (252). In their reading, the siheyuan is a peculiarly elastic architectural typology, whose influence is present as much in the Forbidden City as in the humble family home (252). Prima facie then, it is not surprising that it has also secreted itself within the architectural form of Koolhaas’s creation. It is important to note, however, that while the “most typical forms” of the siheyuan are indeed still to be found in Beijing, the courtyard house is an increasingly uncommon sight in the Chinese capital. An article in the China Daily from 2004 refers to the “few remaining siheyuan” (“Kool Enough for Beijing?”). That said, all is not lost for the siheyuan. Liu and Awotona discuss how the classical form of the courtyard house has been modified to more effectively house current residents in the older parts of Beijing while protecting “the horizontal planning feature of traditional Beijing” (254). “Basic design principles” (255) of the siheyuan have supported “a transition from the traditional single-household courtyard housing form to a contemporary multi-household courtyard housing form” (254). In this process, approaches of “urban renewal [involving] demolition” and “preservation, renovation and rebuilding” have been taken (255). Donia Zhang extends the work of Liu and Awotona in the elaboration of her thesis that “Chinese-Americans interested in building Chinese-style courtyard houses in America are keen to learn about their architectural heritage” (47). Zhang’s article concludes with an illustration that shows how the siheyuan may be merged with the typical American suburban dwelling (66). The final thing to emphasise about the siheyuan is what Liu and Awotona describe as its “special introverted quality” (249). The form is saturated with social consequence by virtue of its philosophical undergirding. The coincidence of philosophies of Daoism (including feng-shui) and Confucianism in the architecture and spatiality of the classical Chinese courtyard house makes it an exceedingly odd anomaly of passivity and power (250-51). The courtyard itself has a highly charged role in the management of family, social and cultural life, which, we suggest, survives its transposition into novel architectural environments. Figure 2: The CCTV Headquarters—Looking Up at “The Overhang”. Cher Coad, 2020. The CCTV Headquarters: A New Type of Skyscraper? Rem Koolhaas is not the only architect to interrogate the standard skyscraper typology. In his essay from 1999, “The Architecture of the Future”, Norman Foster argues that “the world’s increasing ecological crisis” (278) is in part a function of “unchecked urban sprawl” (279). A new type of skyscraper, he suggests, might at least ameliorate the sprawl of our cities: the Millennium Tower that we have proposed in Tokyo takes a traditional horizontal city quarter—housing, shops, restaurants, cinemas, museums, sporting facilities, green spaces and public transport networks—and turns it on its side to create a super-tall building with a multiplicity of uses … . It would create a virtually self-sufficient, fully self-sustaining community in the sky. (279) Koolhaas follows suit, arguing that “the actual point of the skyscraper—to increase worker density—has been lost. Skyscrapers are now only momentary points of high density spaced so far apart that they don’t actually increase density at all” (“Kool Enough for Beijing?”). Foster’s solution to urban sprawl is to make the horizontal (an urban segment) vertical; Koolhaas’s is to make the vertical horizontal: “we’ve [OMA] come up with two types: a very low-rise series of buildings, or a single, condensed hyperbuilding. What we’re doing with CCTV is a prototype of the hyperbuilding” (“Kool Enough for Beijing?”). Interestingly, the “low-rise” type mentioned here brings to mind the siheyuan—textual evidence, perhaps, that the siheyuan is always already a silent fellow traveller of the CCTV Headquarters project. The CCTV Headquarters is, even at over 200 metres tall itself, an anomaly of horizontalism amidst Beijing’s pervasive skyscraper verticality. As Paul Goldberger reports, “some Beijingers have taken to calling it Big Shorts”, which again evokes horizontality. This is its most obvious anomaly, and a somewhat melancholy reminder of “the horizontal planning feature of traditional Beijing” now mutilated by skyscrapers (Liu and Awotona 254). In the same gesture, however, with which it lays the skyscraper on its side, Koolhaas’s creation raises into the air the shape of the courtyard of a classical Chinese house. To our knowledge, no one has noticed this before, let alone written about it. It is, to be sure, a genuine courtyard shape—not merely an archway or a bridge with unoccupied space between. Pure building entirely surrounds the vertical courtyard shape formed in the air. Most images of the building provide an orientation that maximises the size of its vertical courtyard. To this extent, the (secret) courtyard shape of the building is hidden in plain sight. It is possible, however, to make the courtyard narrow to a mere slit of space, and finally to nothing, by circumnavigating the building. Certain perspectives on the building can even make it look like a more-or-less ordinary skyscraper. But, as a quick google-image search reveals, such views are rare. What seems to make the building special to people is precisely that part of it that is not building. Furthermore, anyone approaching the CCTV Headquarters with the intention of locating a courtyard typology within its form will be disappointed unless they look to its vertical plane. There is no hint of a courtyard at the base of the building. Figure 3: The CCTV Headquarters—View from “The Overhang”. Cher Coad, 2020.Figure 4: The CCTV Headquarters—Looking through the Floor of “The Overhang”. Cher Coad, 2020.Visiting the CCTV Headquarters: A “Special Introverted Quality?” In January 2020, we visited the CCTV Headquarters, ostensibly as audience members for a recording of a science spectacular show. Towards the end of the recording, we were granted a quick tour of the building. It is rare for foreigners to gain access to the sections of the building we visited. Taking the lift about 40 floors up, we arrived at the cantilever level—known informally as “the overhang”. Glass discs in the floor allow one to walk out over nothingness, looking down on ant-like pedestrians. Looking down like this was also to peer into the vacant “courtyard” of the building—into a structure “turned or pushed inward on itself”, which is the anatomical definition of “introverted” (Oxford Languages Dictionary). Workers in the building evinced no great affection for it, and certainly nothing of our wide-eyed wonder. Somebody said, “it’s just a place to work”. One of this article’s authors, Patrick West, seemed to feel the overhang almost imperceptibly vibrating beneath him. (Still, he has also experienced this sensation in conventional skyscrapers.) We were told the rumour that the building has started to tilt over dangerously. Being high in the air, but also high on the air, with nothing but air beneath us, felt edgy—somehow special—our own little world. Koolhaas promotes the CCTV Headquarters as (in paraphrase) “its own city, its own community” (“Kool Enough for Beijing?”). This resonated with us on our visit. Conventional skyscrapers fracture any sense of community through their segregated floor-upon-floor verticality; there is never enough room for a little patch of horizontal urbanism to unroll. Within “the overhang”, the CCTV Headquarters felt unlike a standard skyscraper, as if we were in an urban space magically levitated from the streets below. Sure, we had been told by one of the building’s inhabitants that it was “just a place to work”—but compared to the bleak sterility of most skyscraper work places, it wasn’t that sterile. The phrase Liu and Awotona use of the siheyuan comes to mind here, as we recall our experience; somehow, we had been inside a different type of building, one with its own “special introverted quality” (249). Special, that is, in the sense of containing just so much of horizontal urbanism as allows the building to retain its introverted quality as “its own city” (“Kool Enough for Beijing?”). Figure 5: The CCTV Headquarters—View from “The Overhang”. Cher Coad, 2020.Figure 6: The CCTV Headquarters—Inside “The Overhang”. Cher Coad, 2020. Unbuilt Architecture: The Visionary and the Contingent Within the present that it constitutes, built architecture is surrounded by unbuilt architecture at two interfaces: where the past ends; where the future begins. The soupy mix of urbanism continually spawns myriad architectural possibilities, and any given skyscraper is haunted by all the skyscrapers it might have been. History and the past hang heavily from them. Meanwhile, architectural programme or ambition—such as it is—pulls in the other direction: towards an idealised (if not impossible to practically realise) future. Along these lines, Koolhaas and the OMA are plainly a future-directed, as well as self-aware, architectural unit: at OMA we try to build in the greatest possible tolerance and the least amount of rigidity in terms of embodying one particular moment. We want our buildings to evolve. A building has at least two lives—the one imagined by its maker and the life it lives afterward—and they are never the same. (Fraioli 115) Koolhaas makes the same point even more starkly with regard to the CCTV Headquarters project through his use of the word “prototype”: “what we’re doing with CCTV is a prototype of the hyperbuilding” (“Kool Enough for Beijing?”). At the same time, however, as the presence of the siheyuan within the architecture of the CCTV Headquarters shows, the work of the OMA cannot escape from the superabundance of history, within which, as Roberto Schwarz claims, “forms are the abstract of specific social relationships” (53). Supporting our contentions here, Daniel M. Abramson notes that unbuilt architecture implies two sub-categories … the visionary unbuilt, and the contingent … . Visionary schemes invite a forward glance, down one true, vanguard path to a reformed society and discipline. The contingent unbuilts, conversely, invite a backward glance, along multiple routes history might have gone, each with its own likelihood and validity; no privileged truths. (Abramson)Introducing Abramson’s theory to the example of the CCTV Headquarters, the “visionary unbuilt” lines up with Koolhaas’ thesis that the building is a future-directed “prototype”. while the clearest candidate for the “contingent unbuilt”, we suggest, is the siheyuan. Why? Firstly, the siheyuan is hidden in plain sight, within the framing architecture of the CCTV Headquarters; secondly, it is ubiquitous in Beijing urbanism—little wonder then that it turns up, unannounced, in this Beijing building; thirdly, and related to the second point, the two buildings share a “special introverted quality” (Liu and Awotona 249). “The contingent”, in this case, is the anomaly nestled within the much more blatant “visionary” (or futuristic) anomaly—the hyperbuilding to come—of the Beijing-embedded CCTV Headquarters. Koolhaas’s building’s most fascinating anomaly relates, not to any forecast of the future, but to the subtle persistence of the past—its muted quotation of the ancient siheyuan form. Our article is, in part, a response to Abramson’s invitation to “pursue … the consequences of the unbuilt … [and thus] to open architectural history more fully to history”. We have supplemented Abramson’s idea with Schwarz’s suggestion that “forms are the abstract of specific social relationships” (53). The anomaly of the siheyuan—alongside that of the hyperbuilding—within the CCTV headquarters, opens the building up (paraphrasing Abramson) to a fuller analysis of its historical positioning within Western and Eastern flows of globalisation (or better, as we are about to suggest, of glocalisation). In parallel, its form (paraphrasing Schwarz) abstracts and re-presents this history’s specific social relationships. Figure 7: The CCTV Headquarters—A Courtyard of Data. Cher Coad, 2020.Conclusion: A Courtyard of Data and Tensions of Glocalisation Koolhaas proposes that the CCTV Headquarters was “a partnership, not a foreign imposition” and that the building “emerged from the local situation” (Fraioli 117). To us, this smacks of Pollyanna globalisation. The CCTV Headquarters is, we suggest, more accurately read as an imposition of the American skyscraper typology, albeit in anomalous form. (One might even argue that the building’s horizontal deviation from the vertical norm reinforces that norm.) Still, amidst a thicket of conventionally vertical skyscrapers, the building’s horizontalism does have the anomalous effect of recalling “the horizontal planning feature of traditional Beijing” (Liu and Awotona 254). Buried within its horizontalism, however, lies a more secretive anomaly in the form of a vertical siheyuan. This anomaly, we contend, motivates a terminological shift from “globalisation” to “glocalisation”, for the latter term better captures the notion of a lack of reconciliation between the “global” and the “local” in the building. Koolhaas’s visionary architectural programme explicitly advances anomaly. The CCTV Headquarters radically reworks the skyscraper typology as the prototype of a hyperbuilding defined by horizontalism. Certainly, such horizontalism recalls the horizontal plane of pre-skyscraper Beijing and, if faintly, that plane’s ubiquitous feature: the classical courtyard house. Simultaneously, however, the siheyuan has a direct if secretive presence within the morphology of the CCTV Headquarters, even as any suggestion of a vertical courtyard is strikingly absent from Koolhaas’s vanguard manifesto. To this extent, the hyperbuilding fits within Abramson’s category of “the visionary unbuilt”, while the siheyuan aligns with Abramson’s “contingent unbuilt” descriptor. The latter is the “might have been” that, largely under the pressure of its ubiquity as Beijing vernacular architecture, “very nearly is”. Drawing on Schwarz’s idea that “forms are the abstract of specific social relationships”, we propose that the siheyuan, as anomalous form of the CCTV Headquarters, is a heterotopic space within the hybrid global harmony (to paraphrase Koolhaas) purportedly represented by the building (53). In this space thus formed collides the built-up historical and philosophical social intensity of the classical Chinese courtyard house and the intensities of data flows and captures that help constitute the predominantly capitalist and neo-liberalist “social relationship” of China and the Western world—the world of the skyscraper (Schwarz). Within the siheyuan of the CCTV Headquarters, globalised data is literally enveloped by Daoism and Confucianism; it is saturated with the social consequence of local place. The term “glocalisation” is, we suggest, to be preferred here to “globalisation”, because of how it better reflects such vernacular interruptions to the hegemony of globalised space. Forms delineate social relationships, and data, which both forms and is formed by social relationships, may be formed by architecture as much as anything else within social space. Attention to the unbuilt architectural forms (vanguard and contingent) contained within the CCTV Headquarters reveals layers of anomaly that might, ultimately, point to another form of architecture entirely, in which glocal tensions are not only recognised, but resolved. Here, Abramson’s historical project intersects, in the final analysis, with a worldwide politics. Figure 8: The CCTV Headquarters—A Sound Stage in Action. Cher Coad, 2020. References Abramson, Daniel M. “Stakes of the Unbuilt.” Aggregate Architectural History Collaborative. 20 July 2020. <http://we-aggregate.org/piece/stakes-of-the-unbuilt>.Foster, N. “The Architecture of the Future.” The Architecture Reader: Essential Writings from Vitruvius to the Present. Ed. A. Krista Sykes. New York: George Braziller, 2007: 276-79. Fraioli, Paul. “The Invention and Reinvention of the City: An Interview with Rem Koolhaas.” Journal of International Affairs 65.2 (Spring/Summer 2012): 113-19. Goldberger, Paul. “Forbidden Cities: Beijing’s Great New Architecture Is a Mixed Blessing for the City.” The New Yorker—The Sky Line. 23 June 2008. <https://www.newyorker.com/magazine/2008/06/30/forbidden-cities>.“Kool Enough for Beijing?” China Daily. 2 March 2004. <https://www.chinadaily.com.cn/english/doc/2004-03/02/content_310800.htm>. Liu, Ying, and Adenrele Awotona. “The Traditional Courtyard House in China: Its Formation and Transition.” Evolving Environmental Ideals—Changing Way of Life, Values and Design Practices: IAPS 14 Conference Proceedings. IAPS. Stockholm, Sweden: Royal Institute of Technology, 1996: 248-60. <https://iaps.architexturez.net/system/files/pdf/1202bm1029.content.pdf>.Oxford Languages Dictionary. “Rem Koolhaas Biography.” Encyclopedia of World Biography. 20 July 2020. <https://www.notablebiographies.com/news/Ge-La/Koolhaas-Rem.html>. “Rem Koolhaas Interview.” Manufacturing Intellect. Canadian Broadcasting Corporation. 2003. <https://www.youtube.com/watch?v=oW187PwSjY0>.Schwarz, Roberto. Misplaced Ideas: Essays on Brazilian Culture. New York: Verso, 1992. Zhang, Donia. “Classical Courtyard Houses of Beijing: Architecture as Cultural Artifact.” Space and Communication 1.1 (Dec. 2015): 47-68.