bluuebunny/crossref_metadata_2025_split huggingface dataset:
Characterizing ego-networks using motifs
Authors: CUNNINGHAM PÁDRAIG , HARRIGAN MARTIN , WU GUANGYU , O'CALLAGHAN DEREK 
Published: September 2013

AbstractWe assess the potential of network motif profiles to characterize ego-networks in much the same way that a bag-of-words strategy allows text documents to be compared in a vector space framework. This is potentially valuable as a generic strategy for comparing nodes in a network in terms of the network structure in which they are embedded. In this paper, we consider the computational challenges and model selection decisions involved in network motif profiling. We also present three case studies concerning the analysis of Wikipedia edit networks, YouTube spam campaigns, and peer-to-peer lending in the Prosper marketplace.
Effects of lutein and lycopene on carotid intima–media thickness in Chinese subjects with subclinical atherosclerosis: a randomised, double-blind, placebo-controlled trial
Authors: Zou Zhi-Yong , Xu Xian-Rong , Lin Xiao-Ming , Zhang Hua-Bin , Xiao Xin , Ouyang Li , Huang Yang-Mu , Wang Xun , Liu Ya-Qiong 
Published: September 2013

The aim of the present study was to evaluate the effects of lutein and lycopene supplementation on carotid artery intima–media thickness (CAIMT) in subjects with subclinical atherosclerosis. A total of 144 subjects aged 45–68 years were recruited from local communities. All the subjects were randomly assigned to receive 20 mg lutein/d (n 48), 20 mg lutein/d+20 mg lycopene/d (n 48) or placebo (n 48) for 12 months. CAIMT was measured using Doppler ultrasonography at baseline and after 12 months, and serum lutein and lycopene concentrations were determined using HPLC. Serum lutein concentrations increased significantly from 0·34 to 1·96 μmol/l in the lutein group (P< 0·001) and from 0·35 to 1·66 μmol/l in the combination group (P< 0·001). Similarly, serum lycopene concentrations increased significantly from 0·18 to 0·71 μmol/l in the combination group at month 12 (P< 0·001), whereas no significant change was observed in the placebo group. The mean values of CAIMT decreased significantly by 0·035 mm (P= 0·042) and 0·073 mm (P< 0·001) in the lutein and combination groups at month 12, respectively. The change in CAIMT was inversely associated with the increase in serum lutein concentrations (P< 0·05) in both the active treatment groups and with that in serum lycopene concentrations (β = − 0·342, P= 0·031) in the combination group. Lutein and lycopene supplementation significantly increased the serum concentrations of lutein and lycopene with a decrease in CAIMT being associated with both concentrations. In addition, the combination of lutein and lycopene supplementation was more effective than lutein alone for protection against the development of CAIMT in Chinese subjects with subclinical atherosclerosis, and further studies are needed to confirm whether synergistic effects of lutein and lycopene exist.
The Clown Within: Becoming White and Mapuche Ritual Clowns
Authors: Course Magnus 
Published: September 2013

AbstractThis essay takes the antics of ritual clowns,koyong, as an entry point into the ways in which rural Mapuche people in southern Chile come to understand and reflect upon the inevitability of urban migration and the “becoming white” which this migration is said to imply. Utilizing both my own ethnographic data and comparative data from elsewhere in the Americas, I explore the striking continuities in the associations of indigenous ritual clowns: associations with poverty, with uncontrolled bodily desires, with dual ritual performances, and perhaps most significantly, with white people. I suggest that the moral indictment of the “becoming white” instantiated by clowns in their ritual performances emerges from their identities as people who in everyday life are denigrated as “too Mapuche.” Thus, far from being yet another example of indigenous people's “agency” in mimetically co-opting the vitality of white others, I suggest that clowns are one of the means by which rural Mapuche people come to understand precisely their ownlackof agency in the face of Chilean colonialism
Urban Subalterns in the Arab Revolutions: Cairo and Damascus in Comparative Perspective
Authors: Ismail Salwa 
Published: September 2013

AbstractThis paper investigates the role of urban subalterns both as participatory agents in the Arab revolutions and as mediating forces against revolutionary action. It argues that during revolutionary periods the positioning of subalterns as a political force should be understood in relation to their socio-spatial location in the urban political configuration. Looking at the protest movements in Cairo and Damascus, the paper examines the differentiated locations of subaltern actors in each to demonstrate how their positioning in relation to state and government has shaped their engagement in the revolutions. In Cairo, the mobilization of subaltern forces was anchored in spatialized forms of everyday interaction between popular forces and agents of government. These interactions were formative of urban subjectivities that entered into the making of “the people” as the subject of the Revolution. In Damascus, the configuration of the urban space and the Syrian regime's modes of control made it difficult for subaltern forces to mobilize on the same scale as in Cairo or to form a unified opposition. The regime instrumentalized socio-spatial fragmentation among subalterns, in effect turning some segments, as buffers for the regime, against others. In analytical terms, the paper underscores the common conceptual ground between the categories of “urban popular forces” and “urban subalterns.” This ground covers their socio-spatial positionality, their bases of action, and the factors shaping their political subjectivities.
Culture, Nature, and History: The Case of Ancient Sexuality
Authors: Harper Kyle 
Published: September 2013

AbstractThis article analyzes the configuration of biology, anthropology, and history over the last generation by taking the sub-field of the “history of sexuality” as a case study. The history of sexuality developed at a particularly important site of engagement with neighboring disciplines. I argue that the concepts of nature and culture that came to prevail among historians of sexuality were deeply influenced by the debate between a particular strand of evolutionary biology, namely sociobiology, and its critics, who were committed to cultural hermeneutics. This debate encouraged a formulation of nature and culture which is effectively dualist and which remains present within the sub-field. By focusing the analysis on the study ofancient(classical Mediterranean) sexuality, I seek detailed insights into the reception of this debate within a specific domain of historical investigation, one whose stakes have been particularly high because of the intervention of Michel Foucault. The article closes by arguing that biologists and anthropologists in the last two decades have advanced the study of culture as a part of nature, and that historians have much to gain by engaging with more recent models. The institution of monogamy is highlighted as an emerging theme of investigation that can only be approached with the unified insights of history, anthropology, and biology.
Market Reaction to Corporate Press Releases
Authors: Neuhierl Andreas , Scherbina Anna , Schlusche Bernd 
Published: September 2013

AbstractWe classify a unique and comprehensive data set of corporate press releases into topics and study the market reaction to various types of news. While confirming prior findings regarding strong stock price responses to financial news, we also document significant reactions to news about corporate strategy, customers and partners, products and services, management changes, and legal developments. Consistent with regulators' expectations, the level of informational asymmetry in the market declines following most types of press releases. At the same time, return volatility frequently increases in the post-announcement period, which we show can be attributed to higher levels of valuation uncertainty.
Algorithmic Trading and the Market for Liquidity
Authors: Hendershott Terrence , Riordan Ryan 
Published: September 2013

AbstractWe examine the role of algorithmic traders (ATs) in liquidity supply and demand in the 30 Deutscher Aktien Index stocks on the Deutsche Boerse in Jan. 2008. ATs represent 52% of market order volume and 64% of nonmarketable limit order volume. ATs more actively monitor market liquidity than human traders. ATs consume liquidity when it is cheap (i.e., when the bid-ask quotes are narrow) and supply liquidity when it is expensive. When spreads are narrow ATs are less likely to submit new orders, less likely to cancel their orders, and more likely to initiate trades. ATs react more quickly to events and even more so when spreads are wide.
British Business and the Uncertainties of Early Independence in Indonesia
Authors: Lindblad J. Thomas 
Published: September 2013

British private investors were not inclined to view the leaders of newly independent Indonesia with much confidence. In 1949, when the transfer of sovereignty from the Netherlands to the Republic of Indonesia was imminent, the chairman of the United Serdang (Sumatra) Rubber Plantations disclosed the following opinion to the firm's shareholders at a gathering in London's Great Tower Street: “The Republican leaders are mainly ambitious men, whose records are well known, striving for personal aggrandizement. The measure of their interest in the welfare of the country is to be gauged by their policy of wanton destruction of life and physical assets, such as estate factories and ancillary buildings, which are essential for the restoration of the economy of the country once the political problem has been settled.” This article is about how a British enterprise dealt with the significant uncertainties prevailing in the business environment of Indonesia during the early independence period, in particular the 1950s.The economic situation in newly independent Indonesia was a peculiar one. As a major exporter of primary products in high demand such as oil and rubber, prospects were generally bright for the Indonesian economy during and after the Korean War. Just as under colonialism, a modern, large-scale sector accounting for almost 25 per cent of GDP (gross domestic product) was still dominated by Dutch firms and British and American multinationals. Eight large Dutch trading companies handled 60 per cent of consumer goods imports. Nevertheless, the business climate had changed dramatically for foreign firms operating in Indonesia. The 1950s saw a gradual shift away from moderate policy-makers towards an increasingly vocal economic nationalism. The former were acutely aware of the country's dependence on foreign capital and know-how, whereas the latter relentlessly pushed for full decolonisation, that is not only in political but in economic terms. Nationalist sentiments gained the upper hand during the first cabinet of Ali Sastroamidjojo (July 1953–July 1955), culminating with the takeover of virtually all remaining Dutch-owned enterprises in Indonesia from December 1957 onwards, eventually followed by formal nationalisation in 1959. Although economic nationalism in the 1950s primarily targeted Dutch enterprises, British foreign firms were affected as well. At a later stage, in the context of the Indonesian military confrontation with Malaysia (1963–6), they were also seized, albeit not nationalised.
Sovereign Justice in Precolonial Maritime Asia: The Case of the Mayor's Court of Bombay, 1726–1798
Authors: Sood Gagan D. S. 
Published: September 2013

From the beginning of the nineteenth century, remarkable developments in the realm of law were witnessed throughout the world. They expressed and paved the way for a new type of dispensation. For those parts of Asia and the Middle East with a substantial European presence, the legitimate rules, principles, and procedures for resolving disputes were progressively assimilated into systems of state-sanctioned legal pluralism. The process—at once gradual, charged, and punctuated—coincided with the initial consolidation of European imperial dominance and the emergence of Europe's modern global empires.Though these changes in the realm of law date from the nineteenth century, the European presence there had long preceded them. This was perhaps most notable in maritime Asia. The Europeans in this region tended to cluster in their factories or in certain quarters of the towns and cities dotting the Indian Ocean rim. Notwithstanding differences between, say, a Mocha and an Aceh in size, location, and form of government, all these settlements had one quality in common: each was able to profit from the traffic conducted along the coast or across the high seas. As for the sovereign justice on offer, the dispensation that governed it in early modern times was far removed from its later analogue. This stemmed in large part from the rationale and basis for the European presence. In particular, Europeans could not dominate maritime Asia's provincial and imperial powers, especially those located inland, and the great majority of those arriving from western Europe intended to return as soon as possible; despite some involvement in racketeering and other forms of surplus extraction—famously in attempts to introduce and enforce a system of passports in maritime transport and travel—their interests were mainly commercial, oriented towards trade and shipping; the indigenous populations remained on the whole large and resilient; and many of the skills and techniques vested in livelihoods long associated with the region retained their primacy. As a result, the only realistic option for Europeans in maritime Asia was to reconcile themselves to the prevailing order. And this they did, with most of the region's fundamentals, not least in the realm of law, continuing to develop along what were essentially indigenous lines.
Converting nuclear energy into the energy of coherent optical radiation
Authors: Batyrbekov Erlan 
Published: September 2013

AbstractThis paper is devoted to the question of the conversion of nuclear energy into the energy of coherent optical radiation. The two possible ways to convert nuclear energy into laser radiation are discussed: direct and combined nuclear pumping. The concept of using laser gas active media capable of working with both direct and combined nuclear pumping is considered. The results of an investigation by Kazakh scientists on nuclear pumped lasers active media on bound–bound atomic transitions are presented.
Active Cognitive Reserve Influences the Regional Atrophy to Cognition Link in Multiple Sclerosis
Authors: Booth Adam J. , Rodgers Jonathan D. , Schwartz Carolyn E. , Quaranto Brian R. , Weinstock-Guttman Bianca , Zivadinov Robert , Benedict Ralph H.B. 
Published: September 2013

AbstractRecent research indicates that cognitive reserve mitigates the clinical expression of neuropsychological impairment in multiple sclerosis (MS). This literature primarily uses premorbid intelligence and lifetime experiences as indicators. However, changes in current recreational activities may also contribute to the maintenance of neural function despite brain atrophy. We examined the moderation effects of current changes in recreational activity on the relationship between brain atrophy and information processing speed in 57 relapsing-remitting MS patients. Current enrichment was assessed using the Recreation and Pastimes subscale from the Sickness Impact Profile. In patients reporting current declines in recreational activities, brain atrophy was negatively associated with cognition, but there was no such association in participants reporting stable participation. The MRI metric-by-recreational activity interaction was significant in separate hierarchical regression analyses conducted using third ventricle width, neocortical volume, T2 lesion volume, and thalamic volume as brain measures. Results suggest that recreational activities protect against brain atrophy's detrimental influence on cognition. (JINS, 2013, 19, 1–6)
Examining local-level factors shaping school nutrition policy implementation in Ontario, Canada
Authors: Vine Michelle M , Elliott Susan J 
Published: September 2013

AbstractObjectiveIncreasing numbers of overweight and obese youth draw attention to the school as an important setting for targeted nutrition interventions, given that it is where they spend a majority of their waking time. The objective of the present study was to explore local-level factors shaping the implementation of a school nutrition policy.DesignIn-depth, semi-structured interviews were conducted in person or via the telephone (a maximum of 60 min). An interview guide was informed by the Analysis Grid for Environments Linked to Obesity (ANGELO) framework, research objectives and literature. Key themes centred on policy implementation, including facilitators and barriers (i.e. resources, capacity), user satisfaction (i.e. students) and communication strategies.SettingSecondary schools in Ontario, Canada.SubjectsTwenty-two participants from local agencies supporting school nutrition programming (n8) and secondary-school principals, vice principals and teachers (n14) from nine schools across three Ontario school boards.ResultsResults are organized according to environments outlined in the ANGELO framework. The cost of healthy food for sale, revenue loss (economic), proximity of schools to off-site food outlets (physical), the restrictive nature of policy, the role of key stakeholders (political), the role of stigma and school culture (sociocultural) act as local-level barriers to policy implementation.ConclusionsGaps in policy implementation include the high cost of food for sale and subsequent revenue generation, the close proximity of internal and external food environments, the need for consultation and communication between stakeholders, and strategies to reduce stigma and improve the school nutrition culture.
Bacterial diversity associated with the tunic of the model chordate Ciona intestinalis
Authors: Blasiak Leah C , Zinder Stephen H , Buckley Daniel H , Hill Russell T 
Published: September 2013

Abstract
The sea squirt Ciona intestinalis is a well-studied model organism in developmental biology, yet little is known about its associated bacterial community. In this study, a combination of 454 pyrosequencing of 16S ribosomal RNA genes, catalyzed reporter deposition-fluorescence in situ hybridization and bacterial culture were used to characterize the bacteria living inside and on the exterior coating, or tunic, of C. intestinalis adults. The 454 sequencing data set demonstrated that the tunic bacterial community structure is different from that of the surrounding seawater. The observed tunic bacterial consortium contained a shared community of &lt;10 abundant bacterial phylotypes across three individuals. Culture experiments yielded four bacterial strains that were also dominant groups in the 454 sequencing data set, including novel representatives of the classes Alphaproteobacteria and Flavobacteria. The relatively simple bacterial community and availability of dominant community members in culture make C. intestinalis a promising system in which to investigate functional interactions between host-associated microbiota and the development of host innate immunity.
Unique role for translation initiation factor 3 in the light color regulation of photosynthetic gene expression
Authors: Gutu Andrian , Nesbit April D. , Alverson Andrew J. , Palmer Jeffrey D. , Kehoe David M. 
Published: September 2013

Significance
The regulation of photosynthesis is important, yet poorly understood. Our work reveals a previously undescribed form of photosynthesis gene regulation in cyanobacteria that apparently also controls gene expression in plants, including commercially important crops. This finding may provide a unique approach to modifying the environmental responses and developmental programs of agriculturally important species. In addition, translation is a key biological process, and many of its important features and regulation remain to be described. Initiation is the rate-limiting step of translation, making it a critical point for regulation. Our finding that translation initiation factor 3 families exist with common roles in initiation and individual roles in regulating gene expression provides additional insights into the translation mechanism and its regulation.
Glucagon-like peptide 1 receptor induced suppression of food intake, and body weight is mediated by central IL-1 and IL-6
Authors: Shirazi Rozita , Palsdottir Vilborg , Collander Jim , Anesten Fredrik , Vogel Heike , Langlet Fanny , Jaschke Alexander , Schürmann Annette , Prévot Vincent , Shao Ruijin , Jansson John-Olov , Skibicka Karolina Patrycja 
Published: September 2013

Significance
There is a growing interest in the gut- and hindbrain-produced hormone glucagon-like peptide 1 (GLP-1), and GLP-1–targeting drugs are in clinical trials for treatment of obesity, and already in the clinic for treatment of type 2 diabetes. Therefore, the implications of information arising from our study are clinically relevant and considerable. GLP-1 receptor stimulation decreases feeding and body weight likely via the CNS, effects of unquestioned scientific and clinical importance, considering the alarming rates of obesity. Despite this, there is scarce information about the mediators and mechanisms behind the effects of GLP-1. In this study, we found surprising evidence that two cytokines, interleukin-6 and interleukin-1, mediate antiobesity effects of GLP-1 receptor stimulation at the level of the CNS.
Lack of association between postactivation potentiation and subsequent jump performance
Authors: Pearson Stephen John , Hussain Syed Robiul 
Published: September 2013

AbstractPostactivation potentiation (PAP) is a strategy that has been used to acutely enhance the performance of explosive activities. Although, isometric maximal voluntary contractions (MVCs) have previously been shown to enhance subsequent explosive performance, no information currently exists regarding (1) the optimal variables (intensity/volume) of a MVC that best elicits a PAP response, and (2) the utilisation of evoked isometric twitch contractions in combination with performance measures to directly ascertain the presence of PAP following a MVC, and its relationship to performance. Thus, the purpose of this study was to (1) investigate the influence of isometric contraction duration on the PAP response, and (2) to determine the relationship between PAP, indicated as potentiation of muscle twitch force and subsequent jump performance following different‐duration MVCs. Eight males (age: 21 ± 0.99) were assessed using performance measures [countermovement jumps] and evoked twitch contractions, before and 4 minutes after three different conditioning contractions (CCs), (1) a 3‐second MVC (MVC3), (2) a 5‐second MVC (MVC5) and (3) a 7‐second MVC (MVC7). Following all CCs, peak twitch torque of the knee extensor muscles was found to increase (MVC3, + 3.9%; MVC5, + 9.6%; MVC7, + 5.2%), although not significantly (P > 0.05). No significant increases in jump height, jump power, rate of force development or takeoff velocity were observed following any of the CCs (P > 0.05). There was also a lack of association between the changes in PAP (twitch torque) and jump height following all CCs (MVC3, r = 0.25; MVC5, r = 0.28; MVC7, r = −0.47). These data indicate that PAP as assessed via twitch contractions is not associated with performance measures subsequent to single‐set isometric CCs of varying durations.