bluuebunny/crossref_metadata_2025_split huggingface dataset:
Managing Product Variety and Collocation in a Competitive Environment: An Empirical Investigation of Consumer Electronics Retailing
Authors: Ren Charlotte R. , Hu Ye , Hu Yu (Jeffrey) , Hausman Jerry 
Published: April 2011

Product variety is an important strategic tool that firms can use to attract customers and respond to competition. This study focuses on the retail industry and investigates how stores manage their product variety, contingent on the presence of competition and their actual distance from rivals. Using a unique data set that contains all Best Buy and Circuit City stores in the United States, the authors find that a store's product variety (i.e., number of stock-keeping units) increases if a rival store exists in its market but, in the presence of such competition, decreases when the rival store is collocated (within one mile of the focal store). Moreover, collocated rival stores tend to differentiate themselves by overlapping less in product range than do noncollocated rivals. This smaller and more differentiated product variety may be because of coordinated interactions between collocated stores. In summary, this paper presents evidence of both coordination and competition in retailers' use of product variety. This paper was accepted by Bruno Cassiman, business strategy.
Loss Aversion with a State-Dependent Reference Point
Authors: De Giorgi Enrico G. , Post Thierry 
Published: April 2011

This study investigates reference-dependent choice with a stochastic, state-dependent reference point. The optimal reference-dependent solution equals the optimal consumption solution (no loss aversion) if the reference point is selected fully endogenously. Given that loss aversion is widespread, we conclude that the reference point generally includes an important exogenously fixed component. We develop a choice model in which adjustment costs can cause stickiness relative to an initial, exogenous reference point. Using historical U.S. investment benchmark data, we show that this model is consistent with diversification across bonds and stocks for a wide range of evaluation horizons, despite the historically high-risk premium of stocks compared to bonds. This paper was accepted by Peter Wakker, decision analysis.
Preference Reversals for Ambiguity Aversion
Authors: Trautmann Stefan T. , Vieider Ferdinand M. , Wakker Peter P. 
Published: April 2011

This paper finds preference reversals in measurements of ambiguity aversion, even if psychological and informational circumstances are kept constant. The reversals are of a fundamentally different nature than the reversals found before because they cannot be explained by context-dependent weightings of attributes. We offer an explanation based on Sugden's random-reference theory, with different elicitation methods generating different random reference points. Then measurements of ambiguity aversion that use willingness to pay are confounded by loss aversion and hence overestimate ambiguity aversion. This paper was accepted by Teck Ho, decision analysis.
Rapidity distribution as a probe for elliptical flow at intermediate energies
Authors: Kumar Sanjeev , Kaur Varinderjit , Kumar Suneel 
Published: April 2011

Abstract
The interplay between spectator and participant matter in heavy-ion collisions is investigated within the isospin-dependent quantum molecular dynamics (IQMD) model in terms of the rapidity distribution of light charged particles. The effect of different types and sizes of rapidity distributions is studied in elliptical flow. The elliptical-flow patterns show the important role of nearby spectator matter on the participant zone. This role is further explained on the basis of the passing time of the spectator and the expansion time of the participant zone. The transition from in-plane to out-of-plane emission is observed only when the mid-rapidity region is included into the rapidity bin. Otherwise no transition occurs. The transition energy is found to be highly sensitive to the size of the rapidity bin, while it is only weakly dependent on the type of the rapidity distribution. These theoretical findings are found to be in agreement with experimental results.
Generation of the vorticity mode by sound in a Bingham plastic
Authors: Perelomova Anna , Wojda Pawel 
Published: April 2011

Abstract
This study investigates interaction between acoustic and non-acoustic modes, such as vorticity mode, in some class of a non-newtonian fluid called Bingham plastic. The instantaneous equations describing interaction between different modes are derived. The attention is paid to the nonlinear effects in the field of intense sound. The resulting equations which describe dynamics of both sound and the vorticity mode apply to both periodic and aperiodic sound of any waveform. They use only instantaneous quantities and do not imply averaging over the sound period. The theory is illustrated by an example of acoustic force of vorticity induced in the field of a Gaussian sound beam. Some unusual peculiarities in both sound and the vorticity induced in its field as compared to a newtonian fluid, are discovered.
A fluid generalization of membranes
Authors: Roberts Mark 
Published: April 2011

Abstract
In a certain sense a perfect fluid is a generalization of a point particle. This leads to the question as to what is the corresponding generalization for extended objects. Here the lagrangian formulation of a perfect fluid is much generalized by replacing the product of the co-moving vector which is a first fundamental form by higher dimensional first fundamental forms; this has as a particular example a fluid which is a classical generalization of a membrane; however there is as yet no indication of any relationship between their quantum theories.
The antioxidant properties of polypore mushroom Daedaleopsis confragosa
Authors: Vidović Senka , Zeković Zoran , Mujić Ibrahim , Lepojević Žika , Radojković Marija , Živković Jelena 
Published: April 2011

Abstract
Daedaleopsis confragosa belong to a large and remarkable group of mushrooms called polypores. This type of mushroom could be easily said to be quite unexplored and unused when it comes to its antioxidant properties. Thus, in order to evaluate its antioxidant activity, the investigation had to include the total phenolics and flavonoide content, the content of Selenium, the content of Zinc, the scavenging capacity on DPPH· and OH· radicals, reducing power and capacity to remove lipid peroxidation. The investigated mushroom extract contained 54.17 mg GAE/g of total phenols and 48.46 mg CE/g of total flavonoides. Zinc and Selenium were detected and quantified by using inductively coupled plasma mass spectroscopy. The scavenging activity of the radicals was found to exhibit 50% of the inhibition value (IC50 value) at the extract concentration of 0.015±0.007 mg/ml for the investigated D. confragosa extract. By using electron paramagnetic resonant spectroscopy it was found that the investigated extract does not have a significant role in the prevention of lipid peroxidation. It was effective in scavenging on ·OH radical, RI was 56±2%.
Effects of microwaves on the puffing pattern of D. melanogaster
Authors: Shakina Lyubov , Pasiuga Vladimir , Dumin Olexandr , Shckorbatov Yuriy 
Published: April 2011

Abstract
The influence of electromagnetic field exposure on puffing pattern of salivary gland polythene chromosomes, viability and fertility of Drosophila melanogaster of the wild type Canton-S line was studied. Experimental conditions: Electromagnetic field characteristics: frequency — 36.64 GHz, power density — 0.4 W/m2, exposure time −10 seconds. Electromagnetic field exposure was conducted on the egg stage. Results: in larvae developed from the exposed eggs 3 of 8 chromosomal puffs tested (71CE, 82EF, and 83E) had significantly smaller dimensions than these in control at the prepupal stage. Viability of Drosophila estimated by the number of adult flies hatched from exposed eggs decreased, while the number of dominant lethal mutations increased. Conclusion: the exposure to a low-level microwave irradiation suppressed puffing activity at ecdysone-inducible loci of Drosophila polythene chromosomes, increased frequency of dominant lethal mutations and decreased Drosophila viability but did not influence Drosophila fertility.
Health and physical education: a new global statement of consensus (from a Polish perspective)
Authors: Edginton Christopher , Chin Ming-kai , Bronikowski Michał 
Published: April 2011

Health and physical education: a new global statement of consensus (from a Polish perspective)
Physical education has found itself in a difficult position; increasingly more voices are questioning its legitimisation on school curricula. There is an obvious need for performance standards and ways to measure the impact of physical education. Linking the benefits and outcomes of physical education to 21st Century core learning areas such as critical thinking, problem solving, the ability to operate with agility and adaptability, the ability to analyse information, communicate effectively and the ability to act innovatively, will be essential. One of the ways of enhancing its social value (and recognition) might be including and relaying more on health education. This paper draws some lines of direction for the pedagogy of these both subjects in the 21st Century referring to the Global Forum on Physical Education Pedagogy 2010 (GoFPEP 2010) and presenting its Statement of Consensus.
Philosophical notion of nature and the debate of Moral aspects of new technologie
Authors: Liana Zbigniew 
Published: April 2011

Philosophical notion of nature and the debate of Moral aspects of new technologie
The paper deals with the problem of a language or terminology that would be appropriate for the interdisciplinary debate about moral issues related with the recent developments of science and technologies. In particular it deals with the appropriate terminology for the articulation of the idea (or intuitions) of normativity of nature. The evidence of historical changes undergone by the notion of nature is used to warrant the thesis, that the traditional notion of natural law, being originally in the Middle Ages only a variant of the notion of law of nature, has lost its original capacity to convey in the interdisciplinary context of dialogue of theology (or religion) with empirical sciences the idea of normative and moral aspects of nature created by God. On the other side it is shown, that this intellectual and emotional alienation of the concept of natural law from the contemporary culture does not need to lead to the disavowal of the idea of normativity of nature. The intuition of normativity is still present in the common experience of nature, what has changed is only the way of its articulation. Today a good candidate for these purposes seems to be the language of ecological values of nature, environmental equilibrium etc. It could provide a stable (and common) to some extent ground, based on the quite common experience of the value of nature, for interdisciplinary debates, where participants endorse different axiological perspectives. Finally, it is discussed, how this ecological (or similar) terminology of normativity of nature fits the fundamental contemporary epistemological idea: the intrinsically hypothetical, probable and conditioned character of every kind of an a posteriori knowledge.
The Political Meaning of the Right and the Privatization of the Good
Authors: Andryszczak Piotr 
Published: April 2011

The Political Meaning of the Right and the Privatization of the GoodIn today's philosophical and political world we come across an influential current within liberalism called procedural. It faces the problem of building a just society by proposing a formula: the priority of the right over the good. It can be easily found in Rawls's A Theory of Justice which starts from the original position which means that individuals, behind the veil of ignorance, do not know anything about their social location, talents and their own conceptions of the good. Because of such ignorance they would constitute the just society. It would be regulated by two principles of justice, chosen behind the veil of ignorance and reflecting the priority of the right over the good. Nevertheless Rawls understood that this conception could be accepted only by Liberals because it represents an example of a comprehensive doctrine. Therefore he reinterpreted his conception and presented it as political in his Political Liberalism. It has three features: it is worked out for the basic structure of a constitutional democratic regime; it does not depend for its justification on any particular comprehensive doctrine; and, it is formulated in terms of two fundamental ideas implicit in the public culture of a democratic society (the ideas of society as a fair system of cooperation, and of persons viewed as free and equal). Due to this reinterpretation, the justification of his principles of justice proceeds from what is held in common and leads to an agreement based on "an overlapping consensus of reasonable comprehensive doctrines". In this way the good becomes something strictly private and completely absent in the public sphere. Such position is obviously very controversial but a critical approach to it will be a subject of another paper.
Fidelity - a Gift of Gods and a Merit of People Christian reflection of the story of Philemon and Baucis from Ovid's Metamorphoses (VIII, 611-724)
Authors: Polehla Petr 
Published: April 2011

Fidelity - a Gift of Gods and a Merit of People Christian reflection of the story of Philemon and Baucis from Ovid's Metamorphoses (VIII, 611-724)
The article attempts at the Christian reflection of the story of Philemon and Baucis from Ovid's Metamorphoses. This Roman poet composed works that were often copied, imitated, translated, and allegorized by Christian authors not only during the Middle Ages. This kind of tradition shows that a pre-Christian work of literature can serve for a Christian reflection of a certain topic. How this story can be useful for our Christian perfection of virtue, especially fidelity, is the main topic of this article.
John Paul II. and his Relation to Islam
Authors: Poliaková Mária 
Published: April 2011

John Paul II. and his Relation to Islam
At the centre of Popes agenda is faith. John Paul II is not a man with faith, his identity is faith. What defines a human being is faith. It is a judgement, a position a stand that you take with respect to everything. The most tireless moral voice of a secular age, he reinded humankind of the worth of individuals in modern world. In his years as Pope, John Paul achieved more in building ties and understanding between Catholics and Muslims than any other leader in Catholic Church history. He travelled to Casablanca signalling to the Christian world the need to confront with Islam.
Recognizing Domestic Workers, Regulating Domestic Work: Conceptual, Measurement, and Regulatory Challenges
Authors: Chen Martha Alter 
Published: April 2011

Le présent article examine, sous l'angle du concept, de la mesure et de la règlementation, les défis associés à la promotion du travail décent pour les travailleuses domestiques. Après une brève présentation de la réalité du travail domestique qui résume les récentes estimations de son importance et de ses caractéristiques, l'article traite de certains défis conceptuels que pose la promotion du travail décent pour les travailleuses domestiques, y compris le fait qu'on ne peut caser le « travail domestique » dans aucune théorie sur les causes de l'informalité. L'article porte aussi sur la difficulté de recueillir, de compiler et de comparer des statistiques concernant les travailleuses domestiques et aborde les obstacles à la réglementation de cette main-d'œuvre, y compris le paradoxe selon lequel de nombreux économistes cherchent à réglementer les entreprises informelles, mais déréglementent le marché du travail. L'article offre en conclusion des exemples prometteurs d'initiatives actuelles pour améliorer la voix représentative (grâce à l'organisation), la visibilité officielle (grâce à de meilleures statistiques) et la reconnaissance juridique des travailleuses domestiques (grâce à des lois et à des poursuites juridiques pour faire respecter leurs droits).
Global Care Chains, Employment Agencies, and the Conundrum of Jurisdiction: Decent Work for Domestic Workers in Canada
Authors: Fudge Judy 
Published: April 2011

Les travailleuses domestiques migrantes transfrontalières qui résident et travaillent dans des foyers canadiens traversent de nombreux champs de compétence—entre les différents pays, les différents domaines de droit et les différents paliers de gouvernement dans un pays. À cause de cette « transgression », il est difficile de régir ces travailleuses de façon à leur procurer du travail décent. L'objectif du présent article est double : d'abord, il explique comment la circulation des travailleuses migrantes transfrontalières dans des champs de compétence superposés les rend vulnérables à l'exploitation et ensuite, en mettant en évidence le rôle de l'intermédiaire transfrontalier—le courtier ou l'agence d'emploi qui fait traverser les frontières aux travailleures pour qu'elles vivent et travaillent dans des familles canadiennes—il démontre comment il est possible de régler certains de ces problèmes liés aux champs de compétence. L'article commence par une discussion des concepts clés—réseau mondial de soins et compétence—qui servent à analyser le Programme canadien d'aides familiaux résidants et la réglementation des agences de placement en Colombie-Britannique, pour illustrer comment les dilemmes liés aux domaines de compétence rendent difficile l'accès au travail décent pour les travailleuses domestiques. L'article suggère à la fin certaines façons de régler ces dilemmes et, en s'inspirant de modèles canadiens, ébauche des techniques pour réglementer les agences en essayant de promouvoir le travail décent pour les travailleuses domestiques migrantes.
Bringing Together or Drifting Apart? Targeting Care Work as “Work Like No Other”
Authors: Mundlak Guy , Shamir Hila 
Published: April 2011

L'article décrit la précarité et autres conséquences inattendues que peut entraîner le traitement d'exception du travail domestique en tant que « travail à nul autre pareil », en examinant la controverse causée par le paiement des heures supplémentaires pour les aides familiales résidantes en Israël. Bien que la jurisprudence des tribunaux du travail d'Israël offre un continuum de solutions à la problématique du paiement des heures supplémentaires pour cette catégorie de main-d'œuvre, la manière dont la Cour suprême d'Israël interprète actuellement la loi nationale dénie à ce groupe de travailleuses le droit de se faire payer les heures supplémentaires en raison de la nature unique des caractéristiques de ce travail. Le fait que les travailleuses domestiques soient exclues de la loi nationale, en ce qui a trait au paiement des heures supplémentaires, donne plusieurs raisons de se méfier également du traitement d'exception qu'on réserve au travail domestique à l'échelle internationale. Les racines idéologiques du traitement d'exception à l'échelle nationale—définies dans l'article comme une forme de hantise de la marchandisation—associées à l'intérêt économique pour le travail domestique à bon marché—ont servi à consacrer la médiocrité des conditions de travail dans le secteur du travail domestique au lieu de les combattre. De plus, l'expérience d'autres programmes de protection gouvernementale, comme les mesures d'adaptation pour la main-d'œuvre de groupes vulnérables ainsi que les avantages de l'aide sociale, a démontré que le traitement d'exception et la réglementation résiduelle tendent à avoir l'effet contraire et à entraîner des conséquences imprévues et non voulues, y compris de nuire aux groupes mêmes qu'ils devaient protéger. En s'inspirant de l'étude de cas israélienne, l'article suggère que le traitement d'exception réservé aux travailleuses domestiques risque de refléter leurs désavantages fondamentaux et de les consolider, par la suite, sur les plans de l'expression, de l'économie et des institutions.
Study on Creep Behavior of PP/CaCO3 Molded by Vibration Injection Molding at Different Vibration Frequency and Vibration Pressure
Authors: Lu Y. , Peng H. , Shen K. , Yan Z. 
Published: April 2011

Abstract
Vibration injection molding technology has achieved some good properties, such as high impact strength and high tensile strength. Although many researchers have proved that the short-time mechanical properties of the polymer could be improved by vibration-injection molding technology, the long-time mechanical properties, such as the creep behavior, have not been paid enough attention. In this paper, the creep behavior of the calcium carbonate filled polypropylene (PP/CaCO3) prepared at various vibration conditions has been observed. The influences of the vibration pressure and the frequency on the mechanical properties and creep behavior were investigated via creep test and tensile test. Firstly, the tensile fracture strain reached the maximum (11%) at 0.72 Hz. Moreover, with the increasing vibration pressure amplitude, the tensile fracture strain would decrease. The changing tendency of tensile strength is basically contrary with the change of the tensile fracture strain. Secondly, when the vibration frequency reaches the 0.72 Hz, the tensile creep is larger than that of other frequencies samples at 50 MPa; meanwhile, the tensile creep of these PP/CaCO3 parts, which has been prepared at 0.48 Hz, decreases with the increasing vibration pressure amplitude. Finally, the dynamic mechanics analysis (DMA) and the wide-angle X-ray diffraction (WAXD) were adopted to analyze the reason of the creep behavior change. The different macromolecular chains mobility caused the different creep behavior.
Donor CD8 T Cells and IFN-γ Are Critical for Sex-Based Differences in Donor CD4 T Cell Engraftment and Lupus-Like Phenotype in Short-Term Chronic Graft-Versus-Host Disease Mice
Authors: Foster Anthony D. , Soloviova Kateryna , Puliaeva Irina , Puliaiev Maksym , Puliaev Roman , Finkelman Fred , Via Charles S. 
Published: April 2011

Abstract
The transfer of unfractionated DBA/2J (DBA) splenocytes into B6D2F1 (DBA→F1) mice results in greater donor CD4 T cell engraftment in females at day 14 that persists long-term and mediates greater female lupus-like renal disease. Although donor CD8 T cells have no demonstrated role in lupus pathogenesis in this model, we recently observed that depletion of donor CD8 T cells prior to transfer eliminates sex-based differences in renal disease long-term. In this study, we demonstrate that greater day 14 female donor CD4 engraftment is also critically dependent on donor CD8 T cells. Male DBA→F1 mice exhibit stronger CD8-dependent day 8–10 graft-versus-host (GVH) and counter-regulatory host-versus-graft (HVG) responses, followed by stronger homeostatic contraction (days 10–12). The weaker day 10–12 GVH and HVG in females are followed by persistent donor T cell activation and increasing proliferation, expansion, and cytokine production from days 12 to 14. Lastly, greater female day 14 donor T cell engraftment, activation, and cytokine production were lost with in vivo IFN-γ neutralization from days 6 to 14. We conclude the following: 1) donor CD8 T cells enhance day 10 proliferation of donor CD4 T cells in both sexes; and 2) a weaker GVH/HVG in females allows prolonged survival of donor CD4 and CD8 T cells, allowing persistent activation. These results support the novel conclusion that sex-based differences in suboptimal donor CD8 CTL activation are critical for shaping sex-based differences in donor CD4 T cell engraftment at 2 wk and lupus-like disease long-term.