bluuebunny/crossref_metadata_2025_split huggingface dataset:
Vingt ans de prévisions macro-économiques : une évaluation sur données françaises
Authors: Borowski Didier , Bouthevillain Carine , Doz Catherine , Malgrange Pierre , Morin Pierre 
Published: July 2011

Vingt ans de prévisions macro-économiques : une évaluation sur données françaises,
par Didier Borowski, Carine Bouthevillain, Catherine Doz, Pierre Malgrange, Pierre Morin.

Cet article rend compte du degré de précision qu'ont pu atteindre les prévisions macro-économiques ces vingt dernières années. L'imprécision tient certes au degré d'incertitude que l'analyse des comportements sur le passé laisse toujours subsister. Elle est aussi à lier aux difficultés de la mesure des grandeurs de la comptabilité nationale. Elle résulte enfin de la complexité des situations que les économistes ont connues depuis plus de vingt ans. Il n'apparaît pas toutefois que l'imprécision des prévisions se soit accrue sur la période, où l'année 1975 a une place particulière. Quelques comparaisons indiquent que le degré de précision des prévisions pour la France se compare favorablement à celui obtenu pour d'autres pays.
Le modèle de lissage de la production par les stocks est-il valide en France ?
Authors: Dubois Eric 
Published: July 2011

¿Sigue siendo válido en Francia el modelo de suavizamiento de la producción por medio de las existencias ?
por Eric Dubois.

El modelo de suavizamiento de la producción por medio de las existencias, estudiado en una série de artículos desde que se publicó el artículo de Blinder (1986), no permite corroborar, por lo menos en los Estados Unidos, dos de sus consecuencias empíricas : la varianza de la producción excède la varianza de la demanda y la covarianza entre producción y demanda no es negativa. En este artículo se corroboran, en el caso de Francia, los resultados obtenidos con datos norteamericanos. Los resultados parecen deberse a la existencia de graves crisis de productividad. En caso de crisis de demanda, las existencias desempeñan su función de suavizantes de la producción.
Endettement, rentabilité, débouchés et investissement : une analyse sur données individuelles d'enquêtes et de comptes d'entreprises
Authors: Szpiro Daniel 
Published: July 2011

Endettement, rentabilité, débouchés et investissement : une analyse sur données individuelles d'enquêtes et de comptes d'entreprises,
par Daniel Szpiro.

L'enquête rapide de fin d'année de la Banque de France informe sur les contraintes ayant pesé sur l'investissement des entreprises depuis 1985. Un nombre important d'entre elles n'en ont pas subi. Pour les autres, les contraintes ont pesé surtout sur les débouchés ou l'endettement, peu sur la rentabilité ou le taux d'intérêt. Seules les contraintes de débouchés ou d'endettement affectent significativement la croissance de l'investissement. Acontrario, celles qui ont fait état de problèmes de rentabilité ou de taux d'intérêt ont accru leur investissement quasiment au même rythme que celles qui n'ont subi aucune contrainte. Les données comptables issues de la Centrale de bilans confirment l'existence des contraintes de débouchés et d'endettement et révèlent dans ce dernier cas une priorité accordée au maintien de la capacité productive de l'entreprise au détriment de la rémunération à court terme des actionnaires. Par contre, les taux d'intérêt n'auraient pas contraint directement l'investissement.
The evolutionary history of Mimosa (Leguminosae): Toward a phylogeny of the sensitive plants
Authors: Simon Marcelo F. , Grether Rosaura , de Queiroz Luciano P. , Särkinen Tiina E. , Dutra Valquíria F. , Hughes Colin E. 
Published: July 2011

• Premise of the study: Large genera provide remarkable opportunities to investigate patterns of morphological evolution and historical biogeography in plants. A molecular phylogeny of the species‐rich and morphologically and ecologically diverse genus Mimosa was generated to evaluate its infrageneric classification, reconstruct the evolution of a set of morphological characters, and establish the relationships of Old World species to the rest of the genus.• Methods: We used trnD‐trnT plastid sequences for 259 species of Mimosa (ca. 50% of the total) to reconstruct the phylogeny of the genus. Six morphological characters (petiolar nectary, inflorescence type, number of stamens, number of petals, pollen type, and seismonasty) were optimized onto the molecular tree.• Key results: Mimosa was recovered as a monophyletic clade nested within the Piptadenia group and includes the former members of Schrankia, corroborating transfer of that genus to Mimosa. Although we found good support for several infrageneric groups, only one section (Mimadenia) was recovered as monophyletic. All but one of the morphological characters analyzed showed high levels of homoplasy. High levels of geographic structure were found, with species from the same area tending to group together in the phylogeny. Old World species of Mimosa form a monophyletic clade deeply nested within New World groups, indicating recent (6–10 Ma) long‐distance dispersal.• Conclusions: Although based on a single plastid region, our results establish a preliminary phylogenetic framework for Mimosa that can be used to infer patterns of morphological evolution and relationships and which provides pointers toward a revised infrageneric classification.
Challenges and Strategies for Climate Change Adaptation Among Pacific Island Nations
Authors: Mahany Mollie J. , Keim Mark E. 
Published: July 2011

ABSTRACTFew regions of the world are at higher risk for environmental disasters than the Pacific Island countries and territories. During 2004 and 2005, the top public health leadership from 19 of 22 Pacific Island countries and territories convened 2 health summits with the goal of developing the world's first comprehensive regional strategy for sustainable disaster risk management as applied to public health emergencies. These summits followed on the objectives of the 1994 Barbados Plan of Action for the Sustainable Development of Small Island Developing States and those of the subsequent Yokohama Strategy and Plan of Action for a Safer World. The outputs of the 2004 and 2005 Pacific Health Summits for Sustainable Disaster Risk Management provide a detailed description of challenges and accomplishments of the Pacific Island health ministries, establish a Pacific plan of action based upon the principles of disaster risk management, and provide a locally derived, evidence-based approach for many climate change adaptation measures related to extreme weather events in the Pacific region. The declaration and outputs from these summits are offered here as a guide for developmental and humanitarian assistance in the region (and for other small-island developing states) and as a means for reducing the risk of adverse health effects resulting from climate change.(Disaster Med Public Health Preparedness. 2012;6:415-423)
Zinc Fixation for Flow Cytometry Analysis of Intracellular and Surface Epitopes, DNA Content, and Cell Proliferation
Authors: Christensen Rikke , Owens David M. , Thomsen Anette , Pedersen Søren , Jensen Uffe Birk 
Published: July 2011

AbstractZinc salt‐based fixation (ZBF) is a simple, cost‐effective, and nonhazardous fixation method for cell suspensions that preserves all cellular structures and enables flow cytometric analysis of both surface and intracellular proteins, DNA content profiles, and pulse‐labeling using the thymidine analog EdU in the same cell sample. ZBF performs equally well to formaldehyde in the preservation of surface epitope labeling and forward and side light scatter parameters, as measured by flow cytometry. DNA is maintained at high molecular weight, improving the quantification and allowing subsequent quantitative PCR analysis. Finally, ZBF treatment allows for long‐term storage of labeled cells with little change in these parameters. Curr. Protoc. Cytom. 57:7.40.1‐7.40.9. © 2011 by John Wiley & Sons, Inc.
Cognitive and emotional covariates of violence exposure among former prisoners: links to antisocial behavior and emotional distress and implications for theory
Authors: Boxer Paul , Schappell Ashley , Middlemass Keesha , Mercado Ignacio 
Published: July 2011

AbstractIn this study, formerly incarcerated men (N = 123) were assessed for their experiences with violence in the community as well as their current behavioral and mental health status (antisocial behavior and emotional distress). Participants also completed measures of two constructs theorized to moderate relations between exposure to violence and outcomes: cognitive beliefs supporting aggressive responding and negative emotional reactivity to witnessed violence. Data on key social‐demographic background factors affecting outcomes were also collected. Analyses showed that, after controlling the effects of background factors, relationships between experiences with violence in the community and behavioral/mental health were moderated by cognitive beliefs and emotional reactivity. At high levels of support for aggressive responding, significant positive links were observed between exposure to violence and antisocial behavior as well as emotional distress. At high levels of negative reactivity to violence, a significant positive link was observed between exposure to violence and emotional distress (but not antisocial behavior). Findings are discussed with respect to research and theory on the effects of exposure to violence in high‐risk adult populations. Aggr. Behav. 37:465–475, 2011. © 2011 Wiley‐Liss, Inc.
Preferring the One in the Middle: Further Evidence for the Centre‐stage Effect
Authors: Rodway Paul , Schepman Astrid , Lambert Jordana 
Published: July 2011

SummaryThe location of an item influences a person's preference for that item, but it is unclear whether there is a preference for items located on the right or in the centre. In replication of the centre‐stage effect, it was found that when participants were presented with a line of five pictures, they preferred pictures in the centre rather than at either end. This applies when the line of pictures was arranged horizontally or vertically and when participants selected from five pairs of identical socks arranged vertically. The results support the centre‐stage explanation of location‐based preference rather than the hemispheric difference or body‐specific accounts. Implications of the effects of location on consumer choices and preference decisions are discussed. Copyright © 2011 John Wiley & Sons, Ltd.
Social factors influencing natal dispersal in male white‐faced capuchins (Cebus capucinus)
Authors: Jack Katharine M. , Sheller Claire , Fedigan Linda M. 
Published: July 2011

AbstractWhite‐faced capuchin males disperse from their natal group at around 4.5 years of age, but there is much variation in dispersal timing: our youngest confirmed disperser was 19 months and the oldest 11 years old. In this study, we investigate possible factors influencing dispersal decisions in this species. Between 1983 and 2010, 64 males were born into three study groups in Santa Rosa National Park, Area de Conservación Guanacaste, and Costa Rica. As of August 2010, 21 died or were presumed dead (<14 months), 13 remained natal residents, and 30 were presumed dispersers. We used backward logistic regression to identify proximate factors that predict the occurrence of male natal dispersal. The occurrence of a takeover (significant positive association) and group size (nonsignificant negative association) were included in the model. Male age, number of maternal brothers, and number of adult males were not significant predictors of natal dispersal. The resultant model correctly classified 97% of dispersed and 89% of resident natal males, for an overall success rate of 95%. The occurrence of a group takeover was the strongest predictor of male dispersal, with natal males being 18.7 times more likely to disperse in the context of a group takeover than during peaceful times. A linear regression model showed that the tenure length of a male's probable father influences the age of natal dispersal, explaining 15% of the observed variation in age. However, when our oldest disperser was removed (an outlier) this effect disappeared. Collectively, these results indicate that group instability, as evidenced by the occurrence of a takeover, shorter tenure length of a natal male's father, and smaller group size, triggers natal dispersal in this species while the converse leads to a delay. These data add to our growing evidence of the enormous impact that takeovers have on the behavioral ecology of this species. Am. J. Primatol. 74:359–365, 2012. © 2011 Wiley Periodicals, Inc.
Technical note: A landmark‐based approach to the study of the ear ossicles using ultra‐high‐resolution X‐ray computed tomography data
Authors: Schmidt Jodi L. , Cole Theodore M. , Silcox Mary T. 
Published: July 2011

AbstractPrevious study of the ear ossicles in Primates has demonstrated that they vary on both functional and phylogenetic bases. Such studies have generally employed two‐dimensional linear measurements rather than three‐dimensional data. The availability of Ultra‐ high‐resolution X‐ray computed tomography (UhrCT) has made it possible to accurately image the ossicles so that broadly accepted methodologies for acquiring and studying morphometric data can be applied. Using UhrCT data also allows for the ossicular chain to be studied in anatomical position, so that it is possible to consider the spatial and size relationships of all three bones. One issue impeding the morphometric study of the ear ossicles is a lack of broadly recognized landmarks. Distinguishing landmarks on the ossicles is difficult in part because there are only two areas of articulation in the ossicular chain, one of which (the malleus/incus articulation) has a complex three‐dimensional form. A measurement error study is presented demonstrating that a suite of 16 landmarks can be precisely located on reconstructions of the ossicles from UhrCT data. Estimates of measurement error showed that most landmarks were highly replicable, with an average CV for associated interlandmark distances of less than 3%. The positions of these landmarks are chosen to reflect not only the overall shape of the bones in the chain and their relative positions, but also functional parameters. This study should provide a basis for further examination of the smallest bones in the body in three dimensions. Am J Phys Anthropol, 2011. © 2011 Wiley‐Liss, Inc.
Gold‐α‐Oxocarbenoide in der katalysierten Übertragung von Sauerstoffatomen auf Alkine
Authors: Xiao Jian , Li Xingwei 
Published: July 2011

AbstractReaktive Gold‐α‐Oxocarbenoide können als Zwischenstufen in der goldkatalysierten Funktionalisierung von Alkinen auftreten. Derartige Zwischenstufen lassen sich anhand einer inter‐ und intramolekularen Oxidation von Alkinen mit nukleophilen, Sauerstoff übertragenden Gruppen wie Amin‐N‐oxiden, Pyridin‐N‐oxiden, N‐Oxiden einer Schiffschen Base (Nitronen), Nitroverbindungen, Sulfoxiden und Epoxiden synthetisieren. Diese Sauerstoffübertragungsprozesse erfolgen als goldvermittelte Additions‐Eliminierungs‐Reaktionen. In katalytischen Prozessen werden α‐Oxocarbenoide von Iminen und Arenen sowie von wandernden Hydriden und Alkylgruppen angegriffen. Diese Reaktionssequenzen führen zu Produkten mit neuen Molekülstrukturen. Der einfache Aufbau von C‐E‐Einfachbindungen (E=C, N, S oder O) ist ein direkter Weg zu wertvollen Verbindungen aus leicht zugänglichen Ausgangsmaterialien.
Interactions of β‐lactoglobulin with serotonin and arachidonyl serotonin
Authors: Taheri‐Kafrani Asghar , Choiset Yvan , Faizullin Dzhigangir A. , Zuev Yuri F. , Bezuglov Vladimir V. , Chobert Jean‐Marc , Bordbar Abdol‐Khalegh , Haertlé Thomas 
Published: July 2011

Abstractβ‐Lactoglobulin (β‐LG) is a lipocalin, which is the major whey protein of cow's milk and the milk of other mammals. However, it is absent from human milk. The biological function of β‐LG is not clear, but its potential role in carrying fatty acids through the digestive tract has been suggested. β‐LG has been found in complexes with lipids such as butyric and oleic acids and has a high affinity for a wide variety of compounds. Serotonin (5‐hydroxytryptamine, 5‐HT), an important compound found in animals and plants, has various functions, including the regulation of mood, appetite, sleep, muscle contraction, and some cognitive functions such as memory and learning. In this study, the interaction of serotonin and one of its derivatives, arachidonyl serotonin (AA‐5HT), with β‐LG was investigated using circular dichroism (CD) and fluorescence intensity measurements. These two ligands interact with β‐LG forming equimolar complexes. The binding constant for the serotonin/β‐LG interaction is between 105 and 106 M−1, whereas for the AA‐5HT/β‐LG complex it is between 104 and 105 M−1 as determined by measurements of either protein or ligand fluorescence. The observed binding affinities were higher in hydroethanolic media (25% EtOH). The interactions between serotonin/β‐LG and AA‐5HT/β‐LG may compete with self‐association (micellization) of both the ligand and the protein. According to far‐ and near‐UV CD results, these ligands have no apparent influence on β‐LG secondary structure, however they partially destabilize its tertiary structure. Their binding by β‐LG may be one of the peripheral mechanisms of the regulation of the content of serotonin and its derivatives in the bowel of milk‐fed animals. © 2011 Wiley Periodicals, Inc. Biopolymers 95: 871–880, 2011.
Application of ring‐closing metathesis to Grb2 SH3 domain‐binding peptides
Authors: Liu Fa , Giubellino Alessio , Simister Philip C. , Qian Wenjian , Giano Michael C. , Feller Stephan M. , Bottaro Donald P. , Burke Terrence R. 
Published: July 2011

AbstractMolecular processes depending on protein–protein interactions can use consensus recognition sequences that possess defined secondary structures. Left‐handed polyproline II (PPII) helices are a class of secondary structure commonly involved with cellular signal transduction. However, unlike α‐helices, for which a substantial body of work exists regarding applications of ring‐closing metathesis (RCM), there are few reports on the stabilization of PPII helices by RCM methodologies. The current study examined the effects of RCM macrocyclization on left‐handed PPII helices involved with the SH3 domain‐mediated binding of Sos1–Grb2. Starting with the Sos1‐derived peptide “Ac‐V1‐P2‐P3‐P4‐V5‐P6‐P7‐R8‐R9‐R10‐amide,” RCM macrocyclizations were conducted using alkenyl chains of varying lengths originating from the pyrrolidine rings of the Pro4 and Pro7 residues. The resulting macrocyclic peptides showed increased helicity as indicated by circular dichroism and enhanced abilities to block Grb2–Sos1 interactions in cell lysate pull‐down assays. The synthetic approach may be useful in RCM macrocyclizations, where maintenance of proline integrity at both ring junctures is desired. © 2011 Wiley Periodicals, Inc. Biopolymers (Pept Sci) 96: 780–788, 2011.
Three‐dimensional structure and mimetic‐membrane association of consensus 11‐amino‐acid motif from soybean lea3 protein
Authors: Xue Rong , Liu Yun , Zheng Yizhi , Wu Yijie , Li Xiaojing , Pei Fengkui , Ni Jiazuan 
Published: July 2011

AbstractThe occurrence of a highly conserved 11‐mer repeating motif in the primary sequence is a major characteristic of group 3 late embryogenesis abundant (LEA3) proteins, which are strongly associated with abiotic stress tolerance of the plants. In this study, the three‐dimensional structure, mimetic membrane association, and salt effect for consensus 11‐mer motif from soybean PM2 protein (LEA3) were investigated in sodium dodecyl sulfate (SDS) micelles by NMR techniques. It was shown that the 11‐mer motif was disordered in aqueous solution, but adopted an α‐helix in SDS micelles. NMR diffusion measurements demonstrated that the 11‐mer motif was associated with SDS micelles. Paramagnetic quenching NMR experiments further revealed the orientation of the 11‐mer motif with respect to the mimetic membrane: the ordered N‐terminal segment was inserted into the mimetic membrane, and the disordered C‐terminal segment was exposed to water. In addition, salt addition could not change the secondary structure of the 11‐mer motif, but might slightly alter the relative spatial position of some N‐terminal residue atoms. These results implied that the 11‐mer motif would take an important role in structural plasticity and membrane stabilization for LEA3 proteins. © 2011 Wiley Periodicals, Inc. Biopolymers (Pept Sci) 98: 59–66, 2012.
Hydrodynamic deformation and removal of Staphylococcus epidermidis biofilms treated with urea, chlorhexidine, iron chloride, or DispersinB
Authors: Brindle Eric R. , Miller David A. , Stewart Philip S. 
Published: July 2011

AbstractThe force‐deflection and removal characteristics of bacterial biofilm were measured by two different techniques before and after chemical, or enzymatic, treatment. The first technique involved time lapse imaging of a biofilm grown in a capillary flow cell and subjected to a brief shear stress challenge imparted through increased fluid flow. Biofilm removal was determined by calculating the reduction in biofilm area from quantitative analysis of transmission images. The second technique was based on micro‐indentation using an atomic force microscope. In both cases, biofilms formed by Staphylococcus epidermidis were exposed to buffer (untreated control), urea, chlorhexidine, iron chloride, or DispersinB. In control experiments, the biofilm exhibited force‐deflection responses that were similar before and after the same treatment. The biofilm structure was stable during the post‐treatment shear challenge (1% loss). Biofilms treated with chlorhexidine became less deformable after treatment and no increase in biomass removal was seen during the post‐treatment shear challenge (2% loss). In contrast, biofilms treated with urea or DispersinB became more deformable and exhibited significant biofilm loss during the post‐treatment flow challenge (71% and 40%, respectively). During the treatment soak phase, biofilms exposed to urea swelled. Biofilms exposed to iron chloride showed little difference from the control other than slight contraction during the treatment soak. These observations suggest the following interpretations: (1) chemical or enzymatic treatments, including those that are not frankly antimicrobial, can alter the cohesion of bacterial biofilm; (2) biocidal treatments (e.g., chlorhexidine) do not necessarily weaken the biofilm; and (3) biofilm removal following treatment with agents that make the biofilm more deformable (e.g., urea, DispersinB) depend on interaction between the moving fluid and the biofilm structure. Measurements such as those reported here open the door to development of new technologies for controlling detrimental biofilms by targeting biofilm cohesion rather than killing microorganisms. Biotechnol. Bioeng. 2011;108: 2968–2977. © 2011 Wiley Periodicals, Inc.