bluuebunny/crossref_metadata_2025_split huggingface dataset:
La valorisation du fonds photographique Hans Steiner (1907-1962) : les enjeux d'un partenariat institutionnel, scientifique et médiatique
Authors: Kaenel Philippe , Vallotton François 
Published: November 2012

Résumé Le photoreporter Hans Steiner (1907-1962) a récemment fait l’objet d’une exposition itinérante et d’une publication de référence, issues d’un partenariat entre l’Université de Lausanne et le Musée de l’Elysée (Lausanne) qui possède plus de 100 000 œuvres de Steiner (tirages d’époque, négatifs, diapositives ainsi que 7 500 planches cartonnées thématiques...). Le tout a été mis en ligne et complété par le dépouillement de plus d’un millier de reportages dans la presse illustrée helvétique. Ce corpus numérisé contribue à la relecture et à la « réimagination » de l’histoire sociale, politique et culturelle de la Suisse entre 1930 et 1960. Il permet de suivre le parcours de la photographie, du négatif à l’imprimé. Le terme de « redécouverte » a été associé avec récurrence à ce projet de valorisation de l’œuvre photographique de Steiner. Mais comment juger de la « valeur » d’un photographe très présent en son temps et « oublié » par l’historiographie ? Comment opérer une révision sans tomber dans le révisionnisme ? Tout travail de recherche académique produit une plus-value, surtout lorsqu’il est associé à une plateforme muséale et électronique...
Identification of Lineage Relationships and Novel Markers of Blood and Skin Human Dendritic Cells
Authors: Harman Andrew N. , Bye Chris R. , Nasr Najla , Sandgren Kerrie J. , Kim Min , Mercier Sarah K. , Botting Rachel A. , Lewin Sharon R. , Cunningham Anthony L. , Cameron Paul U. 
Published: November 2012

Abstract
The lineage relationships and fate of human dendritic cells (DCs) have significance for a number of diseases including HIV where both blood and tissue DCs may be infected. We used gene expression profiling of human monocyte and DC subpopulations sorted directly from blood and skin to define the lineage relationships. We also compared these with monocyte-derived DCs (MDDCs) and MUTZ3 Langerhans cells (LCs) to investigate their relevance as model skin DCs. Hierarchical clustering analysis showed that myeloid DCs clustered according to anatomical origin rather than putative lineage. Plasmacytoid DCs formed the most discrete cluster, but ex vivo myeloid cells formed separate clusters of cells both in blood and in skin. Separate and specific DC populations could be determined within skin, and the proportion of CD14+ dermal DCs (DDCs) was reduced and CD1a+ DDCs increased during culture, suggesting conversion to CD1a+-expressing cells in situ. This is consistent with origin of the CD1a+ DDCs from a local precursor rather than directly from circulating blood DCs or monocyte precursors. Consistent with their use as model skin DCs, the in vitro–derived MDDC and MUTZ3 LC populations grouped within the skin DC cluster. MDDCs clustered most closely to CD14+ DDCs; furthermore, common unique patterns of C-type lectin receptor expression were identified between these two cell types. MUTZ3 LCs, however, did not cluster closely with ex vivo–derived LCs. We identified differential expression of novel genes in monocyte and DC subsets including genes related to DC surface receptors (including C-type lectin receptors, TLRs, and galectins).
Simulation of Wave-Flow-Cavitation Interaction Using a Compressible Homogenous Flow Method
Authors: Zheng J. G. , Khoo B. C. , Hu Z. M. 
Published: November 2012

AbstractA numerical method based on a homogeneous single-phase flow model is presented to simulate the interaction between pressure wave and flow cavitation. To account for compressibility effects of liquid water, cavitating flow is assumed to be compressible and governed by time-dependent Euler equations with proper equation of state (EOS). The isentropic one-fluid formulation is employed to model the cavitation inception and evolution, while pure liquid phase is modeled by Tait equation of state. Because of large stiffness of Tait EOS and great variation of sound speed in flow field, some of conventional compressible gasdynamics solvers are unstable and even not applicable when extended to calculation of flow cavitation. To overcome the difficulties, a Godunov-type, cell-centered finite volume method is generalized to numerically integrate the governing equations on triangular mesh. The boundary is treated specially to ensure stability of the approach. The method proves to be stable, robust, accurate, time-efficient and oscillation-free.Novel numerical experiments are designed to investigate unsteady dynamics of the cavitating flow impacted by pressure wave, which is of great interest in engineering applications but has not been studied systematically so far. Numerical simulation indicates that cavity over cylinder can be induced to collapse if the object is accelerated suddenly and extremely high pressure pulse results almost instantaneously. This, however, may be avoided by changing the traveling speed smoothly. The accompanying huge pressure increase may damage underwater devices. However, cavity formed at relatively high upstream speed may be less distorted or affected by shock wave and can recover fully from the initial deformation. It is observed that the cavitating flow starting from a higher freestream velocity is more stable and more resilient with respect to perturbation than the flow with lower background speed. These findings may shed some light on how to control cavitation development to avoid possible damage to operating devices.
Small Flows, Compliance Costs and Trade Preferences: The Case of EU Imports from African LDCs
Authors: Nilsson Lars , Dotter Caroline 
Published: November 2012

AbstractPrevious work has shown that a significant number of preference eligible goods are imported into the EU from developing countries at relatively small values and that the rate of preference utilisation of these imports are low and in many cases zero. This fact is unobserved in the aggregate figures because large flows have high utilisation rates, thereby pushing up the average preference utilisation rate. This paper examines this phenomenon further by using monthly data on EU imports from African LDCs at the lowest level of (publicly) available aggregation thereby coming close to transaction level data. It identifies the average value of preference eligible imports, utilising and not utilising preferences, by country and product category and test their empirical relevance for explaining the African LDCs’ preference utilisation rates.
Qu’est-ce qu’un « délit d’opinion » ?
Authors: Hochmann Thomas 
Published: November 2012

L’hostilité envers les « délits d’opinion » est un lieu commun du discours juridique français en matière de liberté d’expression. Une analyse des écrits doctrinaux montre que les auteurs, s’ils se dispensent en général d’une définition explicite, entendent désigner de la sorte les restrictions de la liberté d’expression qui définissent les propos visés essentiellement par leur signification, et indépendamment de leurs possibles conséquences.
L’interdiction des délits d’opinion constitue-t-elle une exigence juridique ou simplement un argument de philosophie politique ? Les régimes de la liberté d’expression en vigueur en Allemagne et aux États-Unis, beaucoup plus élaborés que le système français, permettent d’éclairer toutes les subtilités d’une telle exigence. Les délits d’opinion sont interdits, selon des modalités différentes, en Allemagne et aux États-Unis, mais pas en France. Ainsi, l’incrimination du négationnisme, si elle constitue un « délit d’opinion » dont il est possible de débattre du bien-fondé politique, ne pose pas à cet égard un problème de constitutionnalité en droit français.
La Fête-Dieu dans trois quotidiens québécois (1910-1970)
Authors: Bernier-Cormier Marie-Eve 
Published: November 2012

Cet article décrit la couverture journalistique de la Fête-Dieu dans trois quotidiens québécois entre 1910 et 1970. Malgré des différences marquées dans le traitement de cette célébration par les quotidiens étudiés, leur examen a permis de démontrer que dès 1945, les journaux ont accordé de moins en moins d’importance à ce moment important du calendrier liturgique catholique. Peut-on dès lors parler d’un autre signe de l’effritement de la pratique religieuse avant 1960 ?
Les écoles privées juives à Montréal (1874-1939) : des instances de reproduction identitaire et de production sociale ?
Authors: Croteau Jean-Philippe 
Published: November 2012

Entre les années 1880 et 1930, une importante vague migratoire juive, originaire d’Europe de l’Est, transforme le tissu social de la métropole québécoise. Ces immigrants, qui ont une forte appartenance identitaire, ne tardent pas à mettre sur pied des établissements scolaires privés, porteurs de projets éducatifs qui reflètent les divers horizons culturels, religieux, sociaux et idéologiques auxquels ils appartiennent. Cet article vise à présenter le processus de formation du milieu scolaire juif à Montréal, entre 1874 et 1939, examiné à la fois sous l’angle de la volonté politique des dirigeants communautaires et des aspirations sociales de la population juive. Nous montrons que ce réseau d’écoles privées a participé à la création d’un espace identitaire juif à Montréal en permettant d’assurer la continuité d’une judéité qui prenait ses racines dans l’« Ancien Monde » que les immigrants avaient quitté tout en l’adaptant à la réalité montréalaise et nord-américaine.
Sphingolipid Trafficking and Purification in Chlamydia trachomatis–Infected Cells
Authors: Moore Elizabeth R. 
Published: November 2012

AbstractChlamydia trachomatis is an obligate intracellular human pathogen, which lacks a system that allows genetic manipulation. Therefore, chlamydial researchers must manipulate the host cell to better understand chlamydial biology. Host‐derived lipid acquisition is critical for chlamydial survival within the host. Hence, the ability to track and purify sphingolipids in/from chlamydial infected cells has become an integral part of pivotal studies in chlamydial biology. This unit outlines protocols that provide details about labeling eukaryotic cells with exogenous lipids to examine Golgi‐derived lipid trafficking to the chlamydial inclusion and then performing imaging studies or lipid extractions for quantification. Details are provided to allow these protocols to be applied to subconfluent, polarized, or siRNA knockdown cells. In addition, one will find important experimental design considerations and techniques. These methods are powerful tools to aid in the understanding of mechanisms, which allow C. trachomatis to manipulate and usurp host cell trafficking pathways. Curr. Protoc. Microbiol. 27:11A.2.1‐11A.2.19. © 2012 by John Wiley & Sons, Inc.
Factors for Pain in Patients With Different Grades of Knee Osteoarthritis
Authors: Schiphof Dieuwke , Kerkhof Hanneke J. M. , Damen Jurgen , de Klerk Bianca M. , Hofman Albert , Koes Bart W. , van Meurs Joyce B. J. , Bierma‐Zeinstra Sita M. A. 
Published: November 2012

AbstractObjectiveDiscordance between having pain and radiologic osteoarthritis (OA) is a well‐established fact. It is suggested that this particularly applies to the less severe grades of OA. However, some people with a Kellgren/Lawrence (K/L) grade of 3 or 4 for OA are without pain. This study aimed to identify factors and differences in the factors associated with pain in persons with different grades of knee OA.MethodsWe stratified the knees of more than 5,000 participants of a population‐based cohort study, the Rotterdam Study, based on the grade of knee OA. Multivariate generalized estimating equation analysis was used to analyze the association with knee pain. We tested several factors not directly related to structural damage of the knee.ResultsAs expected, an increasing percentage of participants did not report pain with decreasing severity of knee OA: 25.8% for K/L grade 3 or 4 and 84.5% for no knee OA. Being a woman, having widespread pain, reporting general health symptoms, familial OA, and morning stiffness are factors for knee pain, but not specific for a particular grade of radiographic knee OA. Depression and hip OA showed significant interactions with the grade of OA being a factor for knee pain in knees without OA (K/L grade 0), but not in knees with OA. In addition, increasing age is protective for reporting pain in general.ConclusionSeveral factors are associated with knee pain, but are not specific for a grade of radiographic knee OA. Two factors were associated with knee pain in the knee without signs of OA.
A Universal Scheme for Patterning of Oxides via Thermal Nanoimprint Lithography
Authors: Dinachali Saman Safari , Saifullah Mohammad S. M. , Ganesan Ramakrishnan , Thian Eng San , He Chaobin 
Published: November 2012

AbstractDirect patterning of oxides using thermal nanoimprint lithography is performed using either the sol‐gel or methacrylate route. The sol‐gel method results in resists with long shelf‐life, but with high surface energy and a considerable amount of solvent that affects the quality of imprinting. The methacrylate route, which is limited to certain oxides, produces polymerizable resists, leading to low surface energy, but suffers from the shorter shelf‐life of precursors. By combining the benignant elements from both these routes, a universal method of direct thermal nanoimprinting of oxides is demonstrated using precursors produced by reacting an alkoxide with a polymerizable chelating agent such as 2‐(methacryloyloxy)ethyl acetoacetate (MAEAA). MAEAA possesses β‐ketoester, which results in the formation of environmentally stable, chelated alkoxide with long shelf‐life, and methacrylate groups, which provide a reactive monomer pendant for in situ copolymerization with a cross‐linker during imprinting. Polymerization leads to trapping of cations, lowering of surface energy, strengthening of imprints, which enables easy and clean demolding over 1 cm × 2 cm patterned area with ≈100% yield. Heat‐treatment of imprints gives amorphous/crystalline oxide patterns. This alliance between two routes enables the successful imprinting of numerous oxides including Al2O3, Ga2O3, In2O3, Y2O3, B2O3, TiO2, SnO2, ZrO2, GeO2, HfO2, Nb2O5, Ta2O5, V2O5, and WO3.
Combined factor IX and protein C deficiency in a child: Thrombogenic effects of two factor IX concentrates
Authors: Negrier Claude , Vial Jean , Vinciguerra Christine , Berruyer Micheline , Dechavanne Marc 
Published: November 2012

AbstractWe have recently described an unusual situation which involved a combination of a factor IX and a protein C deficiency in a young child who presented, according to the bleeding tendency, as a hemophilia B patient in this particular hemophiliac, baseline prothrombin fragment F1+2 levels were unexpectedly elevated and increased after an injection of a very high purity factor IX concentrate. This observation raised a question regarding the substitution schedule in the case of repeated injections of factor IX, since the thrombotic tendency has been a major concern with some factor IX concentrates. We monitored factor IX, prothrombin fragment F1+2 and D‐dimer plasma levels before and during the 6 hr following the injection of an immunopurified factor IX concentrate. The results showed an increase in the F1+2 levels after the factor IX injection, but an increase lower than previously observed with an ion‐exchange chromatography‐purified concentrate. Furthermore the F1+2 level returned to baseline value 6 hr after administration. This factor IX concentrate seems to be best for use in the patient where repeated injections are involved (as employed during surgery). Moreover, the data point out the advantage of a monoclonal antibody‐purified factor IX concentrate over less purified concentrates in a specific situation, with regard to the thrombogenic risk.
Spectrum of β‐thalassemia mutations in Calabria: Implications for prenatal diagnosis
Authors: Magro Saverio , Santilli Emanuele , Mancuso Rita , Puzzonia Pasquale , Consarino Caterina , Morgione Sergio , Galati Maria Concetta , Fersini Giuseppina , Madonna Giovanna , Brancati Carmela , Vadalà Pasquale , Molica Stefano 
Published: November 2012

AbstractUsing a combination of oligonucleotide probes and restriction endonuclease enzymes, we characterize β‐thalassemic mutations in 91 homozygous patients and 86 unrelated carriers. Overall, 268 β‐thalassemic genes were obtained. Eleven β‐globin mutations were identified, confirming the wide molecular heterogeneity of β‐thalassemia in Calabria. Information from the present study represents the mainstay for the development of a program of early prenatal diagnosis by direct detection of mutations in Calabria.
Synthesis of star polymer poly(ethylene glycol)3–poly(N,N‐dimethyl acrylamide) and its application in protein resistance and separation
Authors: Xing Jinxing , Tan Lin , Cao Fuhu , Wang Yanmei 
Published: November 2012

AbstractA star polymer composed of three poly(ethylene glycol) (PEG) arms and one poly(N,N‐dimethyl acrylamide) (PDMA) arm (PEG3–PDMA) was synthesized by amidation and atom‐transfer radical polymerization. The structure of PEG3–PDMA was confirmed by 1H‐NMR and gel permeation chromatography results. The surface adsorption and protein‐resistance behaviors of the star polymer PEG3–PDMA, diblock copolymer PEG–PDMA, and homopolymer PEG were investigated by a quartz crystal microbalance with dissipation. The results indicate that the PEG3–PDMA coating could reduce protein adsorption to 13% at least, more effectively than the PEG–PDMA coating; this indicated that the protein‐resistance properties depended on the PEG chain density and surface coverage. If PEG3–PDMA were to be used as the physical coating in capillary zone electrophoresis, it could yield a well‐suppressed eletroosmotic flow with greater stability and separate proteins with a lower relative standard deviration (RSD) of protein migration time and a higher separation efficiency than a bare fused‐silica capillary in a broad pH range. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
Poly (diallyldimethylammoniumchloride)/sodium‐montmorillonite composite; structure, and adsorption properties
Authors: Gunister Ebru , Bozkurt Ayse Muge , Catalgil‐Giz Huceste 
Published: November 2012

AbstractA cationic polyelectrolyte, poly (diallyldimethylammoniumchloride) (PDADMAC) and a smectite‐type layered silicate (sodium activated montmorillonite clay (Sodium‐Montmorillonite, NaMt)), intercalated composites (PDADMAC/NaMt) were prepared. Basal spacings (d001) of NaMt in composites were measured by X‐Ray diffraction analysis (XRD). Ultrasonic addition of low molecular weight PDADMAC into the NaMt structure (at very low concentration and very low PDADMAC(g)/NaMt(g) ratios) resulted in good adsorbing properties both for positively and negatively charged dyes. The adsorption kinetics of the prepared composites both for negatively charged [remazol black (RB)] and positively charged [methylene blue (MB)] reactive dyes were investigated. The RB adsorption efficiency of the positively charged composite is approximately three times that of the pure NaMt while its MB adsorption efficiency is as good as that of pure NaMt. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
Fluorescent polymer with CdTe quantum dots and 1,8‐naphthahmide fluorescent polymer: Synthesis, characterization, and FRET
Authors: Huang Weiyun , Li Lichao , Hui Guodong , Chen Deben , Zhong Anyong 
Published: November 2012

AbstractIn this paper, we reported a new method to fabricate CdTe quantum dots (CdTe QDs), which were synthesized in aqueous solution using thioglycolic acid and L‐phenylalanine (L‐Phe) as costabilizing agent. Then, they were transferred into organic phase with the assistance of cetyltrimethylammonium bromide (CTAB) for further utilization. Finally, we use toluene diisocyanate as a bridge between CdTe QDs and polyacrylate (CPA), whose side chain has hydroxyl group, to synthesize a fluorescent composite polymer CdTe‐CPA. In addition, we synthesized an organic substance 4‐[2,4‐di(tert‐butyl)]phenoxy‐N‐(2‐hydroxyethyl)‐1,8‐naphthalimide (N), and obtained 1,8‐naphthahmide fluorescent polymer N‐CPA in the same way as it did on CdTe‐CPA. The resulting materials were characterized by Fourier transform infrared spectroscopy (FT‐IR), gel permeation chromatography (GPC), differential scanning calorimetry (DSC), transmission electron microscope (TEM), and photoluminescence (PL). Then, we studied the fluorescence resonance energy transfer (FRET) between CdTe‐CPA and N‐CPA. The data obtained from absorption and fluorescence emission spectral indicated that the FRET from N‐CPA to CdTe‐CPA could be efficiently triggered in the solution of chloroform. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
Acetone‐Induced Graphene Oxide Film Formation at the Water–Air Interface
Authors: Wei Li , Chen Fuming , Wang Hong , Zeng Tingying Helen , Wang Qiusheng , Chen Yuan 
Published: November 2012

AbstractGraphene oxide (GO) is an amphiphilic soft material, which can accumulate at the water–air interface. However, GO sheets diffuse slowly in the aqueous phase because of their large size. It is still challenging to form high quality GO films in a controllable and simple way. In this study, we showed that GO sheets can quickly migrate to the water–air interface and form thin films when a suitable amount of acetone is directly mixed with a GO aqueous dispersion. The film formation rate and surface coverage of GO sheets depend on the volume of acetone added, GO dispersion concentration, and formation time. Among several organic solvents, acetone has its advantage for GO film formation owing to its three properties: a nonsolvent to GO aqueous dispersions, miscible with a GO aqueous dispersion, and fast evaporation. Furthermore, we have found that the film formation also is governed by the size of GO sheets and their oxygen content. Although smaller GO sheets could migrate to the water–air interface faster, the overlapping of small GO sheets and the increase in contact resistance is not desirable. A higher oxygen content in GO sheets could also result in smaller GO sheets. Multilayer GO films can be obtained through layer‐by‐layer dip‐coating. These findings open opportunities in developing simple scalable GO film fabrication processes.
Age‐dependent magnetosensitivity of heart muscle ouabain receptors
Authors: Narinyan Lilia Yu , Ayrapetyan Gayane S. , Ayrapetyan Sinerik N. 
Published: November 2012

AbstractIn our previous work we have shown that the age‐dependent decrease in the magnetosensitivity of heart muscle hydration is accompanied by a dysfunction of the Na+/K+ pump. The reciprocal relation between the Na+/K+ pump and Na+/Ca2+ exchange in development was suggested as a possible pathway for the age‐dependent decrease in the magnetosensitivity of heart muscle hydration (water content). Because high and low affinity ouabain receptors in cell membranes are involved in Na+/Ca2+ exchange and Na+/K+ pump functions, respectively, the effect of a 0.2 T static magnetic field (SMF) on dose‐dependent, ouabain‐induced hydration and [3H]‐ouabain binding with heart muscle tissues in young, adult and older rats was studied. Three populations of receptors in membranes with high (10−11–10−9 M), middle (10−9–10−7 M) and low (10−7–10−4 M) affinity to [3H]‐ouabain were distinguished, which had specific dose‐dependent [3H]‐ouabain binding kinetics and effects on muscle hydration. The magnetosensitivity of [3H]‐ouabain binding kinetics with high affinity receptors was prominent in all the three age groups of animals, while with low affinity receptors it was more expressed only in the young group of animals. All three types of receptors that caused modulations of muscle hydration were age dependent and magnetosensitive. Based on the obtained data we came to the conclusion that heart muscle hydration in young animals is more magnetosensitive due to the intense expression of high affinity ouabain receptors, which declines with aging. Bioelectromagnetics 34:312–322, 2013. © 2012 Wiley Periodicals, Inc.