cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the residual finiteness of outer automorphisms of relatively hyperbolic groups
Creators: name: Metaftsis, V.
name: Sykiotis, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 20E05; 57A05; 20E07; 20E08; 57M60

description: We show that every virtually torsion-free subgroup of the outer automorphism group of a conjugacy separable hyperbolic group is residually finite. As a result, we are able to prove that the group of outer automorphisms of every finitely generated Fuchsian group and of every free-by-finite group is resudually finite. We also generalize the main result for relatively hyperbolic groups.
description: 12 pages, an addendum is added that generalizes the reults for relatively hyperbolic groups
Allocative Efficiency of Technically Inefficient Production Units
Creators: name: Bogetoft, Peter
name: Fare, Rolf
name: Bogetoft, Peter
name: Fare, Rolf
Publisher: name: Unknown
Year: 1999
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: technical efficiency
subject: allocative efficiency
subject: homethetic technologies
subject: slack consumption

description: We discuss how to measure allocative efficiency without presuming technical efficiency. This is relevant when it is easier to introduce reallocations than improvements of technical efficiency. We compare the approach to the traditional one of assuming technical efficiency before measuring allocative efficiency. In particular, we develop necessary and sufficient conditions on the technology to ensure consistent measures and we give dual organizational interpretations of the approaches.
Raising the regularity of generalized Abel equations in fractional Sobolev spaces with homogeneous boundary conditions
Creators: name: Li, Yulong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 45A05, 45E10, 45P05

description: The generalized (or coupled) Abel equations on the bounded interval have been well investigated in H$\ddot{\text{o}}$lderian spaces that admit integrable singularities at the endpoints and relatively inadequate in other functional spaces. In recent years, such operators have appeared in BVPs of fractional-order differential equations such as fractional diffusion equations that are usually studied in the frame of fractional Sobolev spaces for weak solution and numerical approximation; and their analysis plays the key role during the process of converting weak solutions to the true solutions. This article develops the mapping properties of generalized Abel operators $α{_aD_x^{-s}}+β{_xD_b^{-s}}$ in fractional Sobolev spaces, where $0
Organic Food and Farming: Between Market Subordination and Retailer Growth Prospects
Creators: name: Kledal, Paul Rye
name: Kledal, Paul Rye
Publisher: name: Unknown
Year: 2005
Subjects: subject: Industrial Organization
subject: Institutional and Behavioral Economics
subject: political economy
subject: institutional economics
subject: supply chain management
subject: organic food & farming
subject: farmers' treadmill
subject: retail bargain power

description: The paper is based on research conducted for DARCOF II (Danish Research Centre for Organic Farming, www.darcof.dk). The aim of the research project is to analyze the future development of the Danish organic food sector through focusing on two agro-commodities: vegetables and pork. Emphasis is placed on identification of economic forces within the supply chains. The main conclusions of the paper - being the results from the organic vegetable chain are that the rules and regulations, and the development of alternative transaction processes in organic food and farming have so far been founded on social counter reactions to the mechanisms of a free market economy that result in the marginalization of farmers, animals welfare and the environment. However, organic farming is also part of the same free market economy, and therefore will inevitably encounter some of the same problems currently facing conventional farmers - declining prices, concentration of production and shift in bargaining power to the retailers. Logically, this situation will lead eventually to increasing conflicts between organic values and their subordination to free market forces, i.e. conventionalization. In the same time retailers are in search for new products, and new ways of creating outlets that can enhance or boost their image in an increasing international competitive environment. The organic products have a well-respected brand of trust and quality, and thereby a very strong position to create new possibilities of gaining store space and growth among supermarkets and discounters. A report of the results is in printing.
Measurement of the orbital and superhump periods of the eclipsing cataclysmic variable SDSS J170213.26+322954.1
Creators: name: Boyd, David
name: Oksanen, Arto
name: Henden, Arne
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The orbital period of the eclipsing cataclysmic variable SDSS J170213.26+322954.1 has been measured as 0.10008215+/-0.00000001d using observations of eclipses during the first recorded superoutburst in October 2005 together with eclipses observed in quiescence in July 2003. This period puts the system in the centre of the period gap. Observation of superhumps during the October 2005 outburst with a period of 0.10496+/-0.00015d confirms this to be a UGSU-type system with a period excess of 4.9%.
description: Accepted for publication in Journal of the British Astronomical Association, 3 pages, 9 figures
Review and experimental verification of X-ray darkfield signal interpretations with respect to quantitative isotropic and anisotropic darkfield computed tomography
Creators: name: Graetz, Jonas
name: Balles, Andreas
name: Hanke, Randolf
name: Zabler, Simon
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Talbot(-Lau) interferometric X-ray darkfield imaging has, over the past decade, gained substantial interest for its ability to provide insights into a sample's microstructure below the imaging resolution by means of ultra small angle scattering effects. Quantitative interpretations of such images depend on models of the signal origination process that relate the observable image contrast to underlying physical processes. A review of such models is given here and their relation to the wave optical derivations by Yashiro et al. and Lynch et al. as well as to small angle X-ray scattering is discussed. Fresnel scaling is introduced to explain the characteristic distance dependence observed in cone beam geometries. Moreover, a model describing the anisotropic signals of fibrous objects is derived. The Yashiro-Lynch model is experimentally verified both in radiographic and tomographic imaging in a monochromatic synchrotron setting, considering both the effects of material and positional dependence of the resulting darkfield contrast. The effect of varying sample-detector distance on the darkfield signal is shown to be non-negligible for tomographic imaging, yet can be largely compensated for by symmetric acquisition trajectories. The derived orientation dependence of the darkfield contrast of fibrous materials both with respect to variations in autocorrelation width and scattering cross section is experimentally validated using carbon fiber reinforced rods.
description: Preprint of dissertation chapter to be submitted for publication
Improving Entrepreneurship in Farming: The Impact of a Training Programme in Dutch Dairy Farming
Creators: name: Bergevoet, Ron H.M.
name: Giesen, G.W.J.
name: Saatkamp, H.W.
name: Van Woerkum, C.M.J.
name: Huirne, Ruud B.M.
name: Bergevoet, Ron H.M.
name: Giesen, G.W.J.
name: Saatkamp, H.W.
name: Van Woerkum, C.M.J.
name: Huirne, Ruud B.M.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Teaching/Communication/Extension/Profession
subject: dairy farming
subject: entrepreneurship
subject: entrepreneurial competences
subject: training programme
subject: evaluation

description: Due to external and internal changes in dairy farming, entrepreneurial competencies are becoming increasingly important for dairy farmers. Investigating the possibility to improve these competencies by means of a training program is the main topic of the reported research. First the relations between the entrepreneurial competencies and farmer and farm characteristics were determined. To improve entrepreneurial competencies a training program was designed and executed. The influence of this training program on farm characteristics and entrepreneurial competencies was investigated by doing a case-control study. Two groups of Dutch dairy farmers were selected to participate in the case-control study. One group (n= 75) participated in the training program, which consisted of eight meetings. In these meetings groups of farmers discussed aspects related to entrepreneurial competencies. The second group (n=180) served as a control. The competencies of participating farmers in both groups were measured by means of a questionnaire at the start and at the end of the study. This research indicates that using the concept of competencies can give insight into entrepreneurial behaviour of farmers and provides a means to evaluate an intervention program aimed at development of a strategic plan by entrepreneurs. The described research method is a good way to identify a possible effect of an intervention. It also shows that entrepreneurial competencies have a positive relation with the farm size of dairy farmers in the Netherlands. The results of the case control study indicate that it is possible to improve entrepreneurial competencies of dairy farmers by means of developing and discussing the farmers' strategic plans in study groups. On average all participants benefited from the program, irrespective of farmer and farm characteristics or the level of competencies at the start of the program.
The hidden side of COVID-19 spread in Italy
Creators: name: Brugnano, Luigi
name: Iavernaro, Felice
name: Zanzottera, Paolo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences
subject: 92C60, 92D30

description: Background. The paper concerns the SARS-CoV2 (COVID-19) pandemic that, starting from the end of February 2020, began spreading along the Italian peninsula, by first attacking small communities in north regions, and then extending to the center and south of Italy, including the two main islands. Objective. The creation of a forecast model that manages to alert the decision-making bodies and, in particular, the healthcare system, to hinder the emergence of any other pandemic outbreaks, or the arrival of subsequent pandemic waves. Methods. A new mathematical model to describe the pandemic is given. The model includes the class of undiagnosed infected people, and has a multi-region extension, to cope with the in-time and in-space heterogeneity of the epidemic. Results. We obtain a robust and reliable tool for the forecast of the total and active cases, which can be also used to simulate different scenarios. Conclusions. We are able to address a number of issues, such as assessing the adoption of the lockdown in Italy, started from 11 March 2020, and how to employ a rapid screening test campaign for containing the epidemic.
description: 21 pages, 10 figures
Bias-free source-independent quantum random number generator
Creators: name: Zheng, Ziyong
name: Zhang, Yi-Chen
name: Huang, Min
name: Chen, Ziyang
name: Yu, Song
name: Guo, Hong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A bias-free source-independent quantum random number generator scheme based on the measurement of vacuum fluctuation is proposed to realize the effective elimination of system bias and common mode noise introduced by the local oscillator. Optimal parameter settings are derived to avoid the system recording two canonically conjugate quadratures simultaneously in each measurement. In particular, it provides a new approach to investigate the performance difference between measuring two quadratures of equal and unequal intensity. It is experimentally demonstrated that the system supports 4.2 Gbps bias-free source-independent random number generation, where its common mode rejection ratio reaches 61.17 dB. Furthermore, the scheme offers an all-optical method facilitating the integration of source-independent quantum random number generators into compact chips.
description: 8 pages, 6 figures
Simulation of phonon-assisted band-to-band tunneling in carbon nanotube field-effect transistors
Creators: name: Koswatta, Siyu
name: Lundstrom, Mark S.
name: Anantram, M. P.
name: Nikonov, Dmitri E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Electronic transport in a carbon nanotube (CNT) metal-oxide-semiconductor field effect transistor (MOSFET) is simulated using the non-equilibrium Green's functions method with the account of electron-phonon scattering. For MOSFETs, ambipolar conduction is explained via phonon-assisted band-to-band (Landau-Zener) tunneling. In comparison to the ballistic case, we show that the phonon scattering shifts the onset of ambipolar conduction to more positive gate voltage (thereby increasing the off current). It is found that the subthreshold swing in ambipolar conduction can be made as steep as 40mV/decade despite the effect of phonon scattering.
description: 13 pages, 4 figures
Segmentation of Consuming Markets of Beef
Creators: name: Lima Filho, Dario De Oliveira
name: Sproesser, Renato Luiz
name: Pereira, Susana Carla Farias
name: Novaes, Amilton Luiz
name: Figueiredo, Jeovan De Carvalho
name: Lima Filho, Dario De Oliveira
name: Sproesser, Renato Luiz
name: Pereira, Susana Carla Farias
name: Novaes, Amilton Luiz
name: Figueiredo, Jeovan De Carvalho
Publisher: name: Unknown
Year: 2005
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Institutional and Behavioral Economics
subject: segmentation
subject: meat
subject: Consumer behavior

description: One of the tasks most difficult in the planning of marketing has been the election of the market-target. Being thus, the market segmentation reveals of great importance. The objective of this study is to discuss a market segmentation model of meat consumers. For in such a way, a bibliographical research was conducted, adopting two basic conditions: (a) the proposals of segmentation of used consuming markets in excellent scientific studies can indicate insights for the presented theoretical construction; and (b) the excellent variable in the process of purchase of the consumers must be considered in the quarrel proposal. The following excellent variable had been identified, considering the purchase process: culture, motivation, perception, health, nutritional value, pecuniary acceptability, beliefs, intention, variable, attitude, style of life and preparation of the food. This allowed the identification of four segments of consumers: Guided by Meat Protein, Guided by Health, Indifferent and Sporadic. It is concluded, therefore, the product meat can not be considered as commodity, it exists other factors, beyond the price, that have great influence on the behavior of purchase of the consumer.
Geometric photon-drag effect and nonlinear shift current in centrosymmetric crystals
Creators: name: Shi, Li-kun
name: Zhang, Dong
name: Chang, Kai
name: Song, Justin C. W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The nonlinear shift current, also known as the bulk photovoltaic current generated by linearly polarized light, has long been known to be absent in crystals with inversion symmetry. Here we argue that a non-zero shift current in centrosymmetric crystals can be activated by a photon-drag effect. Photon-drag shift current proceeds from a `shift current dipole' (a geometric quantity characterizing interband transitions) and manifests a purely transverse response in centrosymmetric crystals. This transverse nature proceeds directly from the shift-vector's pseudovector nature under mirror operation and underscores its intrinsic geometric origin. Photon-drag shift current can greatly enhanced by coupling to polaritons and provides a new and sensitive tool to interrogate the subtle interband coherences of materials with inversion symmetry previously thought to be inaccessible via photocurrent probes.
Aspects of particle production in isospin asymmetric matter
Creators: name: Ferini, G.
name: Colonna, M.
name: Gaitanos, T.
name: Di Toro, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The production/absorption rate of particles in compressed and heated asymmetric matter is studied using a Relativistic Mean Field (RMF) transport model with an isospin dependent collision term. Just from energy conservation in the elementary production/absorption processes we expect to see a strong dependence of the yields on the basic Lorentz structure of the isovector effective interaction, due to isospin effects on the scalar and vector self-energies of the hadrons. This will be particularly evident for the ratio of the rates of particles produced with different charges: results are shown for π(+)/π(-), K(+)/K(0) yields. In order to simplify the analysis we perform RMF cascade simulations in a box with periodic boundary conditions. In this way we can better pin down all such fine relativistic effects in particle production, that could likely show up even in realistic heavy ion collisions. In particular, K(+,0) production is expected to be directly related to the high density behaviour of the symmetry energy, since kaons are produced very early during the high density stage of the collision and their mean free path is rather large. We show that the K(+)/K(0) ratio reflects important isospin contributions on the production rates just because of the large sensitivity around the threshold. The results are very promising for the possibility of a direct link between particle production data in exotic Heavy Ion Collisions and the isospin dependent part of the Equation of State at high baryon densities.
description: 26 pages, 8 figures; Nucl.Phys. A, accepted
Consumers Willingness to Pay to Avoid Transgenic Products
Creators: name: Ribeiro, Francis Lee
name: De Noronha, Jose Ferreira
name: Noronha, Cassia Maria Silva
name: Ribeiro, Francis Lee
name: De Noronha, Jose Ferreira
name: Noronha, Cassia Maria Silva
Publisher: name: Unknown
Year: 2005
Subjects: subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: Transgenic
subject: Contingent Valuation
subject: measure of Well-being

description: The debate on transgenic, which is embebed in asymmetrical information, has as a focal point, the risks and uncertainties to them associated. Many are the concerns and questions about the risks for the human health and the environment. Considering the interests of the productive sector in the transgenic technology, the matter sets itself in terms of how fast it wants to be settled taking into consideration the incapability of establishing certainties about the damages or benefits within the process. With the recent liberation by the Brazilian government for its production the sector starts showing segmentation. Therefore, this issue reflects in the market itself. The question is: are the consumers willing to buy transgenic? As an attempt to answer this question, this paper used a Contingent Valuation procedure, with an exploratory character, estimating consumer willingness to pay (WTP) to avoid the consumption of transgenic. This variable (WTP) was measured as a monetary estimate benefits.
Language and the value of intellectual inquiry : themes in the Noctes Atticae of Aulus Gellius
Creators: name: Reid, Shelley Annette
Publisher: name: University of British Columbia
Year: 2009

description: Aulus Gellius composed his miscellany, the Noctes Atticae (Attic Nights), in the mid-second century A D as a means of educating, entertaining and intellectually stimulating his fellow Romans. His work was part of a strong miscellany tradition in the Hellenistic and Roman worlds. Gellius is frequently dismissed as a dilettante who collected his material without discrimination or forethought, and it is assumed that his work lacks any thematic structure. While it is true that the Noctes Atticae comprises a considerable variety of topics, it is possible to trace particular themes in the Noctes Atticae, such as Gellius' fascination with language and his belief in the value of intellectual pursuits. Gellius' interest in language is expressed through his inquiries into discrete words, including the archaic vocabulary of early Latin writers, but he also gave consideration to the social aspects of language, especially the issue of the determination of language usage. The high value which he placed on intellectual inquiry and research is a persistent theme in the Noctes Atticae; Gellius was passionate in his belief that the truly educated man never forsook his intellectual curiosity.
Random walks on complex networks with inhomogeneous impact
Creators: name: Eisler, Zoltan
name: Kertesz, Janos
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: In many complex systems, for the activity f(i) of the constituents or nodes i, a power-law relationship was discovered between the standard deviation sigma(i) and the average strength of the activity: sigma(i) ~ ^alpha; universal values alpha = 1/2 or 1 were found, however, with exceptions. With the help of an impact variable we introduce a random walk model where the activity is the product of the number of visitors at a node and their impact. If the impact depends strongly on the node connectivity and the properties of the carrying network are broadly distributed (like in a scale free network) we find both analytically and numerically non-universal alpha values. The exponent always crosses over to the universal value of 1 if the external drive dominates.
description: 4 pages, 3 figures, revised text
Kaehler Corrections for the Volume Modulus of Flux Compactifications
Creators: name: von Gersdorff, Gero
name: Hebecker, Arthur
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: No-scale models arise in many compactifications of string theory and supergravity, the most prominent recent example being type IIB flux compactifications. Focussing on the case where the no-scale field is a single unstabilized volume modulus (radion), we analyse the general form of supergravity loop corrections that affect the no-scale structure of the Kaehler potential. These corrections contribute to the 4d scalar potential of the radion in a way that is similar to the Casimir effect. We discuss the interplay of this loop effect with string-theoretic alpha' corrections and its possible role in the stabilization of the radion.
description: 8 pages, references added
Variational Bounds for the Generalized Random Energy Model
Creators: name: Giardina', Cristian
name: Starr, Shannon
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We compute the pressure of the random energy model (REM) and generalized random energy model(GREM) by establishing variational upper and lower bounds. For the upper bound, we generalize Guerra's ``broken replica symmetry bounds",and identify the random probability cascade as the appropriate random overlap structure for the model. For the REM the lower bound is obtained, in the high temperature regime using Talagrand's concentration of measure inequality, and in the low temperature regime using convexity and the high temperature formula. The lower bound for the GREM follows from the lower bound for the REM by induction. While the argument for the lower bound is fairly standard, our proof of the upper bound is new.
description: 24 pages
Neutrino Cooling of Primordial Hot Regions
Creators: name: Belotsky, K. M.
name: Rubin, S. G.
name: Elkasemy, M. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The effect of neutrino cooling of possible primary regions filled by the hot matter is discussed. Such regions could contain the primordial density inhomogeneities of different origin and survive up to modern epoch. We show that the final temperature of such region is $\sim 10\, {\rm keV}$ provided that the initial temperature is within the interval $10\, {\rm keV} ... 100\, {\rm MeV}$. The cooling is realized due to the nuclear reactions containing $n-p$ transition. The lower limit $10\, {\rm keV}$ is accounted for by suppression of the reactions rates because of threshold effect and $n$, $e^{\pm}$ density diminishment.
description: 9 pages, 2 figures
Particle-hole symmetric Luttinger liquids in a quantum Hall circuit
Creators: name: Roddaro, Stefano
name: Pellegrini, Vittorio
name: Beltram, Fabio
name: Pfeiffer, Loren N.
name: West, Ken W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report current transmission data through a split-gate constriction fabricated onto a two-dimensional electron system in the integer quantum Hall (QH) regime. Split-gate biasing drives inter-edge backscattering and is shown to lead to suppressed or enhanced transmission, in marked contrast with the expected linear Fermi-liquid behavior. This evolution is described in terms of particle-hole symmetry and allows us to conclude that an unexpected class of gate-controlled particle-hole-symmetric chiral Luttinger Liquids (CLLs) can exist at the edges of our QH circuit. These results highlight the role of particle-hole symmetry on the properties of CLL edge states.
description: 4 pages, 4 figures
Queensland Dairy Accounting Scheme 2004 Results and Analysis
Creators: name: Murphy, Ray
name: Busby, Graeme
name: Murphy, Ray
name: Busby, Graeme
Publisher: name: Unknown
Year: 2005
Subjects: subject: Agricultural Finance
subject: Livestock Production/Industries
subject: Benchmarking
subject: diary business analysis
subject: comparative analysis

description: This paper provides an overview of the operation of the Queensland Dairy Accounting Scheme (QDAS) and the results and analysis of the 2003-04 data. QDAS is a voluntary scheme providing dairy farmers with an analysis of their dairy business. Key indictors measure performance and the results are then compared against benchmarks and personal targets. Analysis of data has shown that the profit drivers on the most profitable farms in QDAS, are production per cow, herd size, use of homegrown feeds and use of nitrogen fertiliser.
Impact of Particle Arrays on Phase Separation Composition Patterns
Creators: name: Ghosh, Supriyo
name: Mukherjee, Arnab
name: Arroyave, Raymundo
name: Douglas, Jack F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We examine the symmetry-breaking effect of fixed constellations of particles on the surface-directed spinodal decomposition of binary blends in the presence of particles whose surfaces have a preferential affinity for one of the components. Our phase-field simulations indicate that the phase separation morphology in the presence of particle arrays can be tuned to have a continuous, droplet, lamellar, or hybrid morphology depending on the interparticle spacing, blend composition, and time. In particular, when the interparticle spacing is large compared to the spinodal wavelength, a transient target pattern composed of alternate rings of preferred and non-preferred phases emerge at early times, tending to adopt the symmetry of the particle configuration. We reveal that such target patterns stabilize for certain characteristic length, time, and composition scales characteristic of the pure phase separating mixture. To illustrate the general range of phenomena exhibited by mixture-particle systems, we simulate the effects of single-particle, multi-particle, and cluster-particle systems having multiple geometrical configurations of the particle characteristic of pattern substrates on phase separation. Our simulations show that tailoring the particle configuration, or substrate pattern configuration, a relative fluid-particle composition should allow the desirable control of the phase separation morphology as in block copolymer materials, but where the scales accessible to this approach of organizing phase-separated fluids usually are significantly larger. Limited experiments confirm the trends observed in our simulations, which should provide some guidance in engineering patterned blend and other mixtures of technological interest.
Thermodynamics using p4-improved staggered fermion action on QCDOC
Creators: name: Jung, Chulwoo
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present an exploratory study of the thermodynamics of $N_f=3$ QCD with an improved staggered fermions using the QCDOC supercomputer. We use a p4 action with MILC-style smeared links (Fat 7). Some details of the implementation of the p4 action on QCDOC are discussed and performance benchmarks are given. We show preliminary results for the quark mass dependence of the pseudo-critical temperature $T_c$ from several lattice volumes . We also make a comparison between p4fat7 and the old p4 action.
description: 6 pages, presented at the XXIIIrd International Symposium on Lattice Field Theory, 25-30 July 2005, Trinity College, Dublin, Ireland
Additional file 3 of “Like a ticking time bomb”: the persistence of trauma in the HIV diagnosis experience among black men who have sex with men in New York City
Creators: name: Mgbako, Ofole
name: Benoit, Ellen
name: Nishanth S. Iyengar
name: Kuhner, Christopher
name: Brinker, Dustin
name: Duncan, Dustin T.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 3. COREQ Checklist. Checklist of COREQ guideline items included for this qualitative study.
Sarin and Air Permeation Through a Nanoporous Graphene
Creators: name: Maria, Marco A.
name: Fonseca, Alexandre F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Sarin gas is a dangerous chemical warfare agent (CWA). It is a nerve agent capable of bringing a person to death in about 15 minutes. A lethal concentration of sarin molecules in air is about 30 mg/m3. Experimental research on this gas requires very careful safety protocols for handling and storage. Therefore, theoretical and computational studies on sarin gas are very welcome and might provide important safe guides towards the management of this lethal substance. In this work, we investigated the interactions between sarin, air and nanoporous graphene, using tools of classical molecular dynamics simulations. Aiming to cast some light in the possible sarin selective filtration by graphene, we designed a bipartite simulation box with a porous graphene nanosheet placed at the middle. Sarin and air molecules were initially placed only on one side of the box so as to create an initial pressure towards the passage of both to the other side. The box dimensions were chosen so that the hole in the graphene was the only possible way through which sarin and air molecules can get to the other side of the box. The number of molecules that passed through the hole in graphene was monitored during 10 ns of simulation and the results for different temperatures were compared. The results show that, as far as the size of the holes are small, van der Waals forces between graphene and the molecules play a significant role on keeping sarin near graphene, at room temperature.
description: Submitted version of the published paper
Additional file 7 of Implementation and evaluation of a care bundle for prevention of non-ventilator-associated hospital-acquired pneumonia (nvHAP) – a mixed-methods study protocol for a hybrid type 2 effectiveness-implementation trial
Creators: name: Wolfensberger, Aline
name: Clack, Lauren
name: Von Felten Stefanie
name: Kusejko, Katharina
name: Hesse, Mirjam Faes
name: Jakob, Werner
name: Saleschus, Dirk
name: Marie-Theres Meier
name: Kouyos, Roger
name: Held, Leonhard
name: Sax, Hugo
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 7. Addendum: Early study termination.
Taking Stock: An Approach to Engaging the Australian Dairy Industry in Farm Business Management
Creators: name: Murphy, Chris
name: Paine, Mark
name: Murphy, Chris
name: Paine, Mark
Publisher: name: Unknown
Year: 2005
Subjects: Livestock Production/Industries

description: This paper describes the development and achievements of a farm management service available to all dairy farmers in Australia. Dairy businesses in Australia came under severe pressure between the years 2002 and 2004 when three events coincided: a prolonged drought; deregulation which removed protection on milk prices; a downturn in the global commodity price for milk. Taking Stock was developed as a farm management service to help businesses respond to these pressures. Significant development challenges were encountered to ensure services reached 9,500 farmers who were scattered across 7,682,300 square kilometres using vastly different production systems to farm under temperate, sub-tropical or Mediterranean climate zones. These businesses were receiving varying degrees of support from a variety of organisations in the service sector. We ask the question, to what extent can a program like Taking Stock build industry confidence and enable an industry to develop a more inquisitive business culture? We conclude that progress can be made as a whole of industry towards building confidence and to improve the level of inquiry among farmers if seven development factors are addressed by the program.
Additional file 1 of “Like a ticking time bomb”: the persistence of trauma in the HIV diagnosis experience among black men who have sex with men in New York City
Creators: name: Mgbako, Ofole
name: Benoit, Ellen
name: Nishanth S. Iyengar
name: Kuhner, Christopher
name: Brinker, Dustin
name: Duncan, Dustin T.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. CDUHR HIV Positive Black Men Who Have Sex with Men (MSM) Questionnaire. Quantitative survey capturing basic demographic information including age, race/ethnicity, sexual orientation, level of education, income, housing, employment, history of incarceration and health insurance status.
Natural Resource Abundance and Human Capital Accumulation
Creators: name: Stijns, Jean-Philippe C.
name: Stijns, Jean-Philippe C.
Publisher: name: Unknown
Year: 2001
Subjects: Labor and Human Capital
Resource /Energy Economics and Policy

description: This study examines indicators of human capital accumulation together with data for natural resource abundance and rents in a panel of 102 countries running from 1970 to 1999. Mineral wealth makes a positive and marked difference on human capital accumulation. Matching on observables reveals that cross-country results are not driven by a third factor such as overall economic development. Political stability does seem to affect both human capital accumulation and subsoil wealth, but not enough to overturn my conclusions. Instrumentation reveals that reverse causality running from education to natural resources does not drive the results. Estimation of a panel VAR indicates that, over the three decades, a $1 shock to resource rent generates five cents of extra educational expenditure per year. These results are consistent with Hirschman's conjecture that enclave economies have weaker production leakages but stronger government revenue linkages than other activities. The "wealth channel" identified in this paper implies that caution should be exerted when discouraging countries from exploiting their mineral wealth, especially for countries where human capital is scarce.
Which Road To Liberalisation? A First Assessment of the EuroMed Association Agreements
Creators: name: Dell'Aquila, Crescenzo
name: Kuiper, Marijke H.
name: Dell'Aquila, Crescenzo
name: Kuiper, Marijke H.
Publisher: name: Unknown
Year: 2003
Subjects: International Relations/Trade

description: Since the Barcelona Conference (1995), the EMP represents an attempt of the EU to re-launch its global Mediterranean policy towards the twelve Mediterranean Partnership Countries (MPCs). Besides improving the limited results of the Mediterranean agreements concluded in the 1970s, the renewed effort is aimed at counterbalancing EU engagement in East European recovery and integration. The broad aims of the Barcelona Process are to promote political stability in this turbulent area, establish a free-trade area by 2010 and promote social and cultural interactions. These, in turn, imply a number of themes, common to all the agreements with MPCs: the institutionalisation of political dialogue and programmes for improving the respect for human rights and democracy; economic cooperation in a wide range of sectors; the definition of provisions relating to intellectual property, services, public procurement, competition rules, state aids and monopolies; and cooperation relating to social affairs and migration. The prime instruments for achieving these objectives are the Euro-Mediterranean Association Agreements (EMAAs) and a financial support programme (MEDA). The aims of this study are to provide a broad assessment of the EMAAs and to identify key issues for analysis relating to the EMAAs, with particular reference to the agricultural sector. Much research has been done on the impact of the EMAAs, by institutes participating in ENARPRI, as well as by other research networks (FEMISE and MDF) and individual institutes. This paper combines the insights of these studies with current economic and trade data related to the implementation of EMAAs and agriculture.
Structure and evolution of online social relationships: Heterogeneity in warm discussions
Creators: name: Goh, K. -I.
name: Eom, Y. -H.
name: Jeong, H.
name: Kahng, B.
name: Kim, D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: With the advancement in the information age, people are using electronic media more frequently for communications, and social relationships are also increasingly resorting to online channels. While extensive studies on traditional social networks have been carried out, little has been done on online social network. Here we analyze the structure and evolution of online social relationships by examining the temporal records of a bulletin board system (BBS) in a university. The BBS dataset comprises of 1,908 boards, in which a total of 7,446 students participate. An edge is assigned to each dialogue between two students, and it is defined as the appearance of the name of a student in the from- and to-field in each message. This yields a weighted network between the communicating students with an unambiguous group association of individuals. In contrast to a typical community network, where intracommunities (intercommunities) are strongly (weakly) tied, the BBS network contains hub members who participate in many boards simultaneously but are strongly tied, that is, they have a large degree and betweenness centrality and provide communication channels between communities. On the other hand, intracommunities are rather homogeneously and weakly connected. Such a structure, which has never been empirically characterized in the past, might provide a new perspective on social opinion formation in this digital era.
description: 7 pages, 7 figures, 2 tables
Additional file 2 of “Like a ticking time bomb”: the persistence of trauma in the HIV diagnosis experience among black men who have sex with men in New York City
Creators: name: Mgbako, Ofole
name: Benoit, Ellen
name: Nishanth S. Iyengar
name: Kuhner, Christopher
name: Brinker, Dustin
name: Duncan, Dustin T.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2. Personal Interview Question Guide. Interview guide organized by the HIV care continuum and included in-depth questions about the diagnosis experience, barriers to linkage to and retention in care, barriers to medication initiation and adherence, and the role of racial, sexual and cultural identity in HIV care.
Comment on ``The linear instability of magnetic Taylor-Couette flow with Hall effect''
Creators: name: Rheinhardt, M.
name: Geppert, U.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the paper we comment on (Rüdiger & Shalybkov, Phys. Rev. E. 69, 016303 (2004) (RS)), the instability of the Taylor--Couette flow interacting with a homogeneous background field subject to Hall effect is studied. We correct a falsely generalizing interpretation of results presented there which could be taken to disprove the existence of the Hall--drift induced magnetic instability described in Rheinhardt and Geppert, Phys. Rev. Lett. 88, 101103. It is shown that in contrast to what is suggested by RS, no additional shear flow is necessary to enable such an instability with a non--potential magnetic background field, whereas for a curl--free one it is. In the latter case, the instabilities found in RS in situations where neither a hydrodynamic nor a magneto--rotational instability exists are demonstrated to be most likely magnetic instead of magnetohydrodynamic. Further, some minor inaccuracies are clarified.
description: 3 pages, 1 figure; accepted by Physical Review E
Searching for proto-brown dwarfs: Extending near IR spectroscopy of protostars below the hydrogen burning limit
Creators: name: Covey, Kevin R.
name: Greene, Thomas P.
name: Doppmann, Greg W.
name: Lada, Charles J.
name: Wilking, Bruce A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent observations of nearby star forming regions have offered evidence that young brown dwarfs undergo a period of mass accretion analogous to the T Tauri phase observed in young stars. Brown dwarf analogs to stellar protostars, however, have yet to be definitively observed. These young, accreting objects would shed light on the nature of the dominant brown dwarf formation process, as well as provide ideal laboratories to investigate the dependence of the accretion mechanism on protostellar mass. Recent near infrared surveys have identified candidate proto-brown dwarfs and characterized low mass protostars in nearby star forming regions. These techniques allow near infrared spectra to diagnose the effective temperature, accretion luminosity, magnetic field strength and rotation velocity of young low mass stars across the stellar/substellar boundary. The lowest mass proto-brown dwarfs (M < 40 M_Jup), however, will prove challenging to observe given current near IR observational capabilities.
description: 6 pages, 4 figures. Submitted to Astronomical Notes for the special issue containing the proceedings of the "Ultra low-mass star formation and evolution" workshop
Inductive Link Prediction for Nodes Having Only Attribute Information
Creators: name: Hao, Yu
name: Cao, Xin
name: Fang, Yixiang
name: Xie, Xike
name: Wang, Sibo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Social and Information Networks (cs.SI)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Predicting the link between two nodes is a fundamental problem for graph data analytics. In attributed graphs, both the structure and attribute information can be utilized for link prediction. Most existing studies focus on transductive link prediction where both nodes are already in the graph. However, many real-world applications require inductive prediction for new nodes having only attribute information. It is more challenging since the new nodes do not have structure information and cannot be seen during the model training. To solve this problem, we propose a model called DEAL, which consists of three components: two node embedding encoders and one alignment mechanism. The two encoders aim to output the attribute-oriented node embedding and the structure-oriented node embedding, and the alignment mechanism aligns the two types of embeddings to build the connections between the attributes and links. Our model DEAL is versatile in the sense that it works for both inductive and transductive link prediction. Extensive experiments on several benchmark datasets show that our proposed model significantly outperforms existing inductive link prediction methods, and also outperforms the state-of-the-art methods on transductive link prediction.
description: IJCAI2020
Modelling droplets on superhydrophobic surfaces: equilibrium states and transitions
Creators: name: Dupuis, A.
name: Yeomans, J. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present a lattice Boltzmann solution of the equations of motion describing the spreading of droplets on topologically patterned substrates. We apply it to model superhydrophobic behaviour on surfaces covered by an array of micron-scale posts. We find that the patterning results in a substantial increase in contact angle, from $110^o$ to $156^o$. The dynamics of the transition from drops suspended on top of the posts to drops collapsed in the grooves is described.
description: 17 pages, 6 figures. Accepted for publication in Langmuir