bluuebunny/crossref_metadata_2025_split huggingface dataset:
Making Merit: The Indian Institutes of Technology and the Social Life of Caste
Authors: Subramanian Ajantha 
Published: March 2015

AbstractThe politics of meritocracy at the Indian Institutes of Technology illuminates the social life of caste in contemporary India. I argue that the IIT graduate's status depends on the transformation of privilege into merit, or the conversion of caste capital into modern capital. Analysis of this process calls for a relational approach to merit. My ethnographic research on the southeastern state of Tamilnadu, and on IIT Madras located in the state capital of Chennai, illuminates claims to merit, not simply as the transformation of capital but also as responses to subaltern assertion. Analyzing meritocracy in relation to subaltern politics allows us to see the contextual specificity of such claims: at one moment, they are articulated through the disavowal of caste, at another, through caste affiliation. This marking and unmarking of caste suggests a rethinking of meritocracy, typically assumed to be a modernist ideal that disclaims social embeddedness and disdains the particularisms of caste and race. I show instead that claims to collective belonging and to merit are eminently commensurable, and become more so when subaltern assertion forces privilege into the foreground. Rather than the progressive erasure of ascribed identities in favor of putatively universal ones, we are witnessing the re-articulation of caste as an explicit basis for merit and the generation of newly consolidated forms of upper-casteness.
The “Criminal Tribe” in India before the British
Authors: Piliavsky Anastasia 
Published: March 2015

AbstractThis paper challenges the broad consensus in current historiography that holds the Indian stereotype of criminal tribe to be a myth of colonial making. Drawing on a selection of precolonial descriptions of robber castes—ancient legal texts and folktales; Jain, Buddhist and Brahmanic narratives; Mughal sources; and Early Modern European travel accounts—I show that the idea of castes of congenital robbers was not a British import, but instead a label of much older vintage on the subcontinent. Enjoying pride of place in the postcolonial critics' pageant of “colonial stereotypes,” the case of criminal tribes is representative and it bears on broader questions about colonial knowledge and its relation to power. The study contributes to the literature that challenges the still widespread tendency to view colonial social categories, and indeed the bulk of colonial knowledge, as the imaginative residue of imperial politics. I argue that while colonialusesof the idea of a criminal tribe comprises a lurid history of violence against communities branded as born criminals in British law, the stereotype itself has indigenous roots. The case is representative and it bears on larger problems of method and analysis in “post-Orientalist” historiography.
Nationality Medicines in China: Institutional Rationality and Healing Charisma
Authors: Lai Lili , Farquhar Judith 
Published: March 2015

AbstractThis article describes emergent Chinese regimes of knowledge about “minority nationality medicines.” We adopt Weberian terms of rational and charismatic authority to better understand ethnic healing as it is developing among minorities in southwestern China. In the course of uneven development among diverse ethnic groups over recent decades, modern information regimes and institutional models have started to transform the many forms of healing and heritage that can be found “on the ground” in minority areas. We delineate a shifting border between official (or rational) and wild (or charismatic) forms of medicine, and argue that every healing situation results from a dynamic and sometimes destructive relation between these forms of authority. We draw from research conducted among seven minority nationalities scattered in five provinces in China's south and southwest. After an overview of relevant scholarly work that circulates nationally, we discuss views and practices of three healers belonging to Zhuang, Tujia, and Yao groups, respectively. Ultimately we suggest that all healing, including that taking place in biomedical clinics, relies on some contact with “the wild,” and forges a relationship between rationality and charisma.
Low temperature photoionized Ne plasmas induced by laser-plasma EUV sources
Authors: Bartnik A. , Fiedorowicz H. , Fok T. , Jarocki R. , Szczurek M. , Wachulak P. 
Published: March 2015

AbstractIn this work, two laser-produced plasma (LPP) sources – extreme ultraviolet (EUV) and a LPP soft X-ray (SXR) source were used to create Ne photoionized plasmas. A radiation beam was focused onto a gas stream, injected into a vacuum chamber synchronously with the radiation pulse. EUV radiation spanned a wide spectral range with pronounced maximum centered at λ≈11 nm, while in case of the SXR source spectral maximum was at λ≈1.4 nm. Emission spectra of photoionized plasmas created this way were measured in a wide spectral range λ = 10–100 nm. The dominating spectral lines originated from singly charged ions (Ne II) and neutral atoms (Ne I). For the highest radiation fluence, spectral lines originating from Ne III and even Ne IV species were detected. Differences between the experimental spectra, obtained for all irradiation conditions, were analyzed. They were attributed either to different fluence or spectral distribution of driving photons.
Suppression of stimulated rotational Raman scattering over long air paths via controlling the polarization state
Authors: Feng B. , Fan X.M. , Lu Z.W. , Lin D.Y. , Yang F. , Wang Y.L. 
Published: March 2015

AbstractStimulated rotational Raman scattering (SRRS) limits the effective transmission distances of the high-energy and high-power laser pulses in laser–fusion systems and other applications. A simple and practical method of suppressing SRRS process by controlling the polarization direction of Stokes light is proposed. For a narrowband, linearly polarized, flat-topped laser pulse of 351 nm with intensity of 2 GW/cm2 and width of 3 ns, the SRRS threshold distance in air is lengthened to 30.0 m from 16.2 m easily using the method. Simulation results demonstrate that the method is also applicable for broadband laser.
Global path-following control of underactuated ships under deterministic and stochastic sea loads
Authors: Do K. D. 
Published: March 2015

SUMMARYThis paper presents a new method to design global path-following controllers for underactuated ships under both deterministic and stochastic sea loads. The path-following errors are first interpreted in a moving frame attached to the path. These errors are then to be stabilized at the origin by a design of controllers based on backstepping and Lyapunov's direct methods. Weak and strong nonlinear Lyapunov functions are introduced to overcome difficulties caused by underactuation and Hessian terms induced by stochastic differentiation rule, and to guarantee boundedness of the sway velocity. Potential projection functions are introduced to design update laws that provide bounded estimates of the mean values and covariances of the disturbances. Simulations are included to illustrate the effectiveness of the proposed approach.
An FMRI-Compatible Symbol Search Task
Authors: Liebel Spencer W. , Clark Uraina S. , Xu Xiaomeng , Riskin-Jones Hannah H. , Hawkshead Brittany E. , Schwarz Nicolette F. , Labbe Donald , Jerskey Beth A. , Sweet Lawrence H. 
Published: March 2015

AbstractOur objective was to determine whether a Symbol Search paradigm developed for functional magnetic resonance imaging (FMRI) is a reliable and valid measure of cognitive processing speed (CPS) in healthy older adults. As all older adults are expected to experience cognitive declines due to aging, and CPS is one of the domains most affected by age, establishing a reliable and valid measure of CPS that can be administered inside an MR scanner may prove invaluable in future clinical and research settings. We evaluated the reliability and construct validity of a newly developed FMRI Symbol Search task by comparing participants’ performance in and outside of the scanner and to the widely used and standardized Symbol Search subtest of the Wechsler Adult Intelligence Scale (WAIS). A brief battery of neuropsychological measures was also administered to assess the convergent and discriminant validity of the FMRI Symbol Search task. The FMRI Symbol Search task demonstrated high test–retest reliability when compared to performance on the same task administered out of the scanner (r=.791; p<.001). The criterion validity of the new task was supported, as it exhibited a strong positive correlation with the WAIS Symbol Search (r=.717; p<.001). Predicted convergent and discriminant validity patterns of the FMRI Symbol Search task were also observed. The FMRI Symbol Search task is a reliable and valid measure of CPS in healthy older adults and exhibits expected sensitivity to the effects of age on CPS performance. (JINS, 2015, 22, 1–8)
Predictors of personal, perceived and self-stigma towards anxiety and depression
Authors: Busby Grant J. , Bruce C. P. , Batterham P. J. 
Published: March 2015

BackgroundStigma towards individuals experiencing a mental illness is associated with a range of negative psychological, social and financial outcomes. Factors associated with stigma remain unclear; the relationship between stigma and various personal factors may depend on both the type of disorder being stigmatised and what type of stigma is assessed. Different forms of stigma include personal stigma (negative attitudes towards others), perceived stigma (perceived attitudes of others) and self-stigma (self-attribution of others’ negative attitudes).MethodThree hundred and fifty university students and members of the general public completed an online survey assessing contact with and knowledge of both depression and anxiety, age, gender, current depression and anxiety symptoms, and personal, perceived and self-stigma for both depression and anxiety.ResultsGreater contact with, and knowledge of that illness predicted lower personal stigma for both anxiety and depression. Participants with greater levels of current depression symptomatology and females, reported higher perceived stigma towards depression. Males reported higher personal stigma for anxiety. For both anxiety and depression, higher current symptomatology was associated with greater levels of self-stigma towards the illness.ConclusionsFindings confirm the role of contact and knowledge in personal stigma for both disorders, consistent with previous findings. This finding also supports evidence that interventions addressing these factors are associated with a decline in personal stigma. However, lack of relationship between contact with, and knowledge of a mental illness and perceived and self-stigma for either depression or anxiety suggests that these factors may not play a major role in perceived or self-stigma. The identification of symptomatology as a key factor associated with self-stigma for both anxiety and depression is significant, and has implications for community-wide interventions aiming to increase help-seeking behaviour, as well as individual treatment strategies for clinicians. Further research should examine whether these relationships hold for groups with clinically diagnosed depression and anxiety disorders.
Aquatic heterotrophic bacteria have highly flexible phosphorus content and biomass stoichiometry
Authors: Godwin Casey M , Cotner James B 
Published: March 2015

Abstract
Bacteria are central to the cycling of carbon (C), nitrogen (N) and phosphorus (P) in every ecosystem, yet our understanding of how tightly these cycles are coupled to bacterial biomass composition is based upon data from only a few species. Bacteria are commonly assumed to have high P content, low biomass C:P and N:P ratios, and inflexible stoichiometry. Here, we show that bacterial assemblages from lakes exhibit unprecedented flexibility in their P content (3% to less than 0.01% of dry mass) and stoichiometry (C:N:P of 28: 7: 1 to more than 8500: 1200: 1). The flexibility in C:P and N:P stoichiometry was greater than any species or assemblage, including terrestrial and aquatic autotrophs, and suggests a highly dynamic role for bacteria in coupling multiple element cycles.
Rearrangement of 1D Conducting Nanomaterials towards Highly Electrically Conducting Nanocomposite Fibres for Electronic Textiles
Authors: Han Joong Tark , Choi Sua , Jang Jeong In , Seol Seung Kwon , Woo Jong Seok , Jeong Hee Jin , Jeong Seung Yol , Baeg Kang-Jun , Lee Geon-Woong 
Published: March 2015

AbstractNanocarbon-based conducting fibres have been produced using solution- or dry-spinning techniques. Highly conductive polymer-composite fibres containing large amounts of conducting nanomaterials have not been produced without dispersants, however, because of the severe aggregation of conducting materials in high-concentration colloidal solutions. Here we show that highly conductive (electrical conductivity ~1.5 × 105 S m−1) polymer-composite fibres containing carbon nanotubes and silver nanowires can be fabricated via a conventional solution-spinning process without any other treatment. Spinning dopes were fabricated by a simple mixing of a polyvinyl alcohol solution in dimethylsulfoxide with a paste of long multi-walled carbon nanotubes dispersed in organic solvents, assisted by quadruple hydrogen-bonding networks and an aqueous silver nanowire dispersion. The high electrical conductivity of the fibre was achieved by rearrangement of silver nanowires towards the fibre skin during coagulation because of the selective favourable interaction between the silver nanowires and coagulation solvents. The prepared conducting fibres provide applications in electronic textiles such as a textile interconnector of light emitting diodes, flexible textile heaters and touch gloves for capacitive touch sensors.
Synergy between intention recognition and commitments in cooperation dilemmas
Authors: Han The Anh , Santos Francisco C. , Lenaerts Tom , Pereira Luís Moniz 
Published: March 2015

AbstractCommitments have been shown to promote cooperation if, on the one hand, they can be sufficiently enforced and on the other hand, the cost of arranging them is justified with respect to the benefits of cooperation. When either of these constraints is not met it leads to the prevalence of commitment free-riders, such as those who commit only when someone else pays to arrange the commitments. Here, we show how intention recognition may circumvent such weakness of costly commitments. We describe an evolutionary model, in the context of the one-shot Prisoner's Dilemma, showing that if players first predict the intentions of their co-player and propose a commitment only when they are not confident enough about their prediction, the chances of reaching mutual cooperation are largely enhanced. We find that an advantageous synergy between intention recognition and costly commitments depends strongly on the confidence and accuracy of intention recognition. In general, we observe an intermediate level of confidence threshold leading to the highest evolutionary advantage, showing that neither unconditional use of commitment nor intention recognition can perform optimally. Rather, our results show that arranging commitments is not always desirable, but that they may be also unavoidable depending on the strength of the dilemma.
Clustered Distribution of Natural Product Leads of Drugs in the Chemical Space as Influenced by the Privileged Target-Sites
Authors: Tao Lin , Zhu Feng , Qin Chu , Zhang Cheng , Chen Shangying , Zhang Peng , Zhang Cunlong , Tan Chunyan , Gao Chunmei , Chen Zhe , Jiang Yuyang , Chen Yu Zong 
Published: March 2015

AbstractSome natural product leads of drugs (NPLDs) have been found to congregate in the chemical space. The extent, detailed patterns and mechanisms of this congregation phenomenon have not been fully investigated and their usefulness for NPLD discovery needs to be more extensively tested. In this work, we generated and evaluated the distribution patterns of 442 NPLDs of 749 pre-2013 approved and 263 clinical trial small molecule drugs in the chemical space represented by the molecular scaffold and fingerprint trees of 137,836 non-redundant natural products. In the molecular scaffold trees, 62.7% approved and 37.4% clinical trial NPLDs congregate in 62 drug-productive scaffolds/scaffold-branches. In the molecular fingerprint tree, 82.5% approved and 63.0% clinical trial NPLDs are clustered in 60 drug-productive clusters (DCs) partly due to their preferential binding to 45 privileged target-site classes. The distribution patterns of the NPLDs are distinguished from those of the bioactive natural products. 11.7% of the NPLDs in these DCs have remote-similarity relationship with the nearest NPLD in their own DC. The majority of the new NPLDs emerge from preexisting DCs. The usefulness of the derived knowledge for NPLD discovery was demonstrated by the recognition of the new NPLDs of 2013–2014 approved drugs.
Highly efficient entanglement swapping and teleportation at telecom wavelength
Authors: Jin Rui-Bo , Takeoka Masahiro , Takagi Utako , Shimizu Ryosuke , Sasaki Masahide 
Published: March 2015

AbstractEntanglement swapping at telecom wavelengths is at the heart of quantum networking in optical fiber infrastructures. Although entanglement swapping has been demonstrated experimentally so far using various types of entangled photon sources both in near-infrared and telecom wavelength regions, the rate of swapping operation has been too low to be applied to practical quantum protocols, due to limited efficiency of entangled photon sources and photon detectors. Here we demonstrate drastic improvement of the efficiency at telecom wavelength by using two ultra-bright entangled photon sources and four highly efficient superconducting nanowire single photon detectors. We have attained a four-fold coincidence count rate of 108 counts per second, which is three orders higher than the previous experiments at telecom wavelengths. A raw (net) visibility in a Hong-Ou-Mandel interference between the two independent entangled sources was 73.3 ± 1.0% (85.1 ± 0.8%). We performed the teleportation and entanglement swapping and obtained a fidelity of 76.3% in the swapping test. Our results on the coincidence count rates are comparable with the ones ever recorded in teleportation/swapping and multi-photon entanglement generation experiments at around 800 nm wavelengths. Our setup opens the way to practical implementation of device-independent quantum key distribution and its distance extension by the entanglement swapping as well as multi-photon entangled state generation in telecom band infrastructures with both space and fiber links.
In vitro γ-ray-induced inflammatory response is dominated by culturing conditions rather than radiation exposures
Authors: Babini G. , Morini J. , Baiocco G. , Mariotti L. , Ottolenghi A. 
Published: March 2015

AbstractThe inflammatory pathway has a pivotal role in regulating the fate and functions of cells after a wide range of stimuli, including ionizing radiation. However, the molecular mechanisms governing such responses have not been completely elucidated yet. In particular, the complex activation dynamics of the Nuclear transcription Factor kB (NF-kB), the key molecule governing the inflammatory pathway, still lacks a complete characterization. In this work we focused on the activation dynamics of the NF-kB (subunit p65) pathway following different stimuli. Quantitative measurements of NF-kB were performed and results interpreted within a systems theory approach, based on the negative feedback loop feature of this pathway. Time-series data of nuclear NF-kB concentration showed no evidence of γ-ray induced activation of the pathway for doses up to 5Gy but highlighted important transient effects of common environmental stress (e.g. CO2, temperature) and laboratory procedures, e.g. replacing the culture medium, which dominate the in vitro inflammatory response.
Revealing sub-μm and μm-scale textures in H2O ice at megabar pressures by time-domain Brillouin scattering
Authors: Nikitin Sergey M. , Chigarev Nikolay , Tournat Vincent , Bulou Alain , Gasteau Damien , Castagnede Bernard , Zerr Andreas , Gusev Vitalyi E. 
Published: March 2015

AbstractThe time-domain Brillouin scattering technique, also known as picosecond ultrasonic interferometry, allows monitoring of the propagation of coherent acoustic pulses, having lengths ranging from nanometres to fractions of a micrometre, in samples with dimension of less than a micrometre to tens of micrometres. In this study, we applied this technique to depth-profiling of a polycrystalline aggregate of ice compressed in a diamond anvil cell to megabar pressures. The method allowed examination of the characteristic dimensions of ice texturing in the direction normal to the diamond anvil surfaces with sub-micrometre spatial resolution via time-resolved measurements of the propagation velocity of the acoustic pulses travelling in the compressed sample. The achieved imaging of ice in depth and in one of the lateral directions indicates the feasibility of three-dimensional imaging and quantitative characterisation of the acoustical, optical and acousto-optical properties of transparent polycrystalline aggregates in a diamond anvil cell with tens of nanometres in-depth resolution and a lateral spatial resolution controlled by pump laser pulses focusing, which could approach hundreds of nanometres.
Extreme wettability of nanostructured glass fabricated by non-lithographic, anisotropic etching
Authors: Yu Eusun , Kim Seul-Cham , Lee Heon Ju , Oh Kyu Hwan , Moon Myoung-Woon 
Published: March 2015

AbstractFunctional glass surfaces with the properties of superhydrophobicity/or superhydrohydrophilicity, anti-condensation or low reflectance require nano- or micro-scale roughness, which is difficult to fabricate directly on glass surfaces. Here, we report a novel non-lithographic method for the fabrication of nanostructures on glass; this method introduces a sacrificial SiO2 layer for anisotropic plasma etching. The first step was to form nanopillars on SiO2 layer-coated glass by using preferential CF4 plasma etching. With continuous plasma etching, the SiO2 pillars become etch-resistant masks on the glass; thus, the glass regions covered by the SiO2 pillars are etched slowly and the regions with no SiO2 pillars are etched rapidly, resulting in nanopatterned glass. The glass surface that is etched with CF4 plasma becomes superhydrophilic because of its high surface energy, as well as its nano-scale roughness and high aspect ratio. Upon applying a subsequent hydrophobic coating to the nanostructured glass, a superhydrophobic surface was achieved. The light transmission of the glass was relatively unaffected by the nanostructures, whereas the reflectance was significantly reduced by the increase in nanopattern roughness on the glass.