bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation of the learning curve for a board-certified veterinary surgeon performing laparoendoscopic single-site ovariectomy in dogs
Authors: Runge Jeffrey J. , Boston Raymond C. , Ross Sharona B. , Brown Dorothy C. 
Published: September 2014

Abstract
Objective—To define the learning curve and evaluate the outcome for a board-certified veterinary surgeon performing laparoendoscopic single-site (LESS) ovariectomy in dogs.
Design—Retrospective case review and learning curve evaluation with a skill acquisition model.
Animals—27 client-owned dogs.
Procedures—Between April 2011 and December 2012, 27 dogs underwent elective LESS ovariectomy performed by a single experienced board-certified laparoscopic surgeon by means of the same technique. Medical records for these patients were reviewed to determine whether a learning curve could be detected. A commercially available multitrocar port was inserted through a 15- to 20-mm incision at the umbilicus, and LESS ovariectomy was performed with articulating graspers, a bipolar vessel-sealing device, and a 30° telescope. Surgical performance of the surgeon was quantified with an exponential skill acquisition model, and how skill was gained with repetition of the same novel surgical procedure was examined.
Results—Median patient body weight was 20 kg (44 lb; range, 3.5 to 41 kg [7.7 to 90.2 lb]). Median surgical time was 35 minutes (range, 20 to 80 minutes). Median patient age was 314 days (range, 176 to 2,913 days). The skill acquisition model revealed that a comparable surgeon could reach 90% of optimal surgery performance after approximately 8 procedures (8.6, 95% confidence interval, 0.5 to 16.6 procedures). According to the model, with each surgery, surgical time would be expected to decrease by 27% (95% confidence interval, 2% to 52%). Complications were limited to minor hemorrhage due to a splenic laceration and a postoperative incisional infection. Follow-up information was available for all 27 cases. All owners were satisfied and indicated that they would pursue LESS ovariectomy again.
Conclusions and Clinical Relevance—The learning curve for LESS ovariectomy was short and definable. Short-term outcome was excellent. Results of this study suggested that an experienced laparoscopic surgeon may anticipate achieving proficiency with this technique after performing approximately 8 procedures.
Measurement Uncertainty Analysis of the Strain Gauge Based Stabilographic Platform
Authors: Walendziuk Wojciech 
Published: September 2014

Abstract
The present article describes constructing a stabilographic platform which records a standing patient’s deflection from their point of balance. The constructed device is composed of a toughen glass slab propped with 4 force sensors. Power transducers are connected to the measurement system based on a 24-bit ADC transducer which acquires slight body movements of a patient. The data is then transferred to the computer in real time and data analysis is conducted. The article explains the principle of operation as well as the algorithm of measurement uncertainty for the COP (Centre of Pressure) surface (x, y).
The Influence of Changes in the Geometry of the Tooth Surface of the Pinion Bevel Gear on the Kinematic Accuracy of Pair Mesh
Authors: Płocica Mieczysław , Pisula Jadwiga 
Published: September 2014

Abstract
The paper describes the possibilities of bevel gears kinematics design on the basis of the motion graph and improving modifications to cut the pinion teeth flanks. The result is the ability to increase the accuracy of the kinematic transmission. The issue of changing the geometry of the pinion gear is considered in respect of a gear intended for the use in aviation, which requires the cooperation of high quality meshing. The basic geometric features that have been modified include the profile angle, the angle of tooth line, crowning trans-verse and longitudinal and lateral surface twist angle of the tooth. The modification of each of the selected geometrical parameters has had a different effect on the chart of transmission. It has been shown that the effect of the intended changes in the geometry of the pinion may reduce the deviation of motion delays gear and an improve the gear transmission chart.
Some Differential Equations of Elasticity and their Lie Point Symmetry Generators
Authors: Bocko Jozef , Glodová Iveta , Lengvarský Pavol 
Published: September 2014

Abstract
The formal models of physical systems are typically written in terms of differential equations. A transformation of the variables in a differential equation forms a symmetry group if it leaves the differential equation invariant. Symmetries of differential equations are very important for understanding of their properties. It can be said that the theory of Lie group symmetries of differential equations is general systematic method for finding solutions of differential equations. Despite of this fact, the Lie group theory is relatively unknown in engineering community. The paper is devoted to some important questions concerning this theory and for several equations resulting from the theory of elasticity their Lie group infinitesimal generators are given.
The reduction rate of invasive Ascaris suum eggs number in slurry and humus layers of selected soil types
Authors: Olszewska H. , Skowron K. , Skowron K. , Kaczmarek A. 
Published: September 2014

Abstract
The aim of this study was to determine under laboratory conditions the percentage and rate of reduction in invasive Ascaris suum eggs, as well as the maximal time of invasiveness retaining by them in swine slurry and 3 soil types. A. suum eggs were introduced into perforated perlon bags which then were placed in samples of slurry and in humus layers of the soils: podsolic soil, black earth and browned black earth. The experiment was carried out for 44 weeks at 4 and 20 °C. Finally, at 4 °C a reduction in the number of invasive eggs from 41 % (the humus layer of podsolic soil) to 65 % (the humus layer of black earth) was observed. At 20 °C the fluctuations were smaller and the percentage of elimination ranged from 89 % (slurry) to 96 % (the humus layer of browned black earth).
Effectiveness of coproscopic concentration techniques
Authors: Taglioretti V. , Sardella N. , Fugassa M. 
Published: September 2014

Abstract
The aim of the present study was to compare the effectiveness of the concentration techniques of flotation-centrifugation with zinc chloride (FZn) (δ = 1.45) with the spontaneous sedimentation (SSed) and the sucrose flotation-centrifugation (FSuc) (δ = 1.2) to recuperate gastrointestinal parasites from camelid fecal samples. The technique with more positive results for the detection of Nematodirus sp., Trichuris sp., strongyle-type eggs and Eimeria macusaniensis oocysts was the FZn. For Trichuris sp. and Eimeria macusaniensis, the higher coverglass counts were detected by FZn procedure. No significant differences were registered among centrifugation flotation techniques for Nematodirus spp. Coverglass count for strongyle-type eggs was significantly higher for FSuc than FZn (p = 0.0005) or SSed (p = 0.0005), being also significantly higher for FZn than for SSed (p = 0.008). FZn is a sensitive technique that allows the recovery of parasite elements with high density and it exerts low osmotic pressure avoiding parasite deformation.
Diplostomum and Ornithodiplostomum scardinii (Diplostomidae, Digenea) species from naturally infected birds (Anatinae) in the Czech Republic and in Poland: morphological, morphometric and ecological features
Authors: Sitko J. , Rząd I. 
Published: September 2014

Abstract
The study aimed to describe morphological and morphometric characteristics of species representing the genera Diplostomum Nordmann, 1832 and Ornithodiplostomum Dubois, 1936, originating from naturally infected birds in the Czech Republic and in Poland, and to compare their species richness and the intensity of infection in their avian hosts. Diplostomum mergi Dubois, 1932, D. parviventosum Dubois, 1932, D. phoxini (Faust, 1918), D. pusillum (Dubois, 1928), and Ornithodiplostomum scardinii (Schulman, 1952) were found in the gossander (Mergus merganser). D. parviventosum was found in the velvet scoter (Melanitta fusca). D. pungitii Shigin, 1965 was found in the tufted duck (Aythya fuligula), common eider (Somateria mollissima), common goldeneye (Bucephala clangula), and in the long-tailed duck (Clangula hyemalis). D. spathaceum (Rudolphi, 1819) was found in the mallard (Anas platyrhynchos). Morphology and morphometry of those Diplostomum species from the Czech Republic and from Poland were not analyzed before. The morphological and morphometric description of the adult form of O. scardinii presented in this study has been the first such description of a specimen obtained from a naturally infected bird. The highest intensity of infection was observed in the gossander (D. pusillum and D. mergi). Study results provided new data on the occurrence of the Diplostomum and O. scardinii trematodes in the Czech Republic and in Poland.
First description of male Philometra thaiensis Moravec, Fiala et Dyková, 2004 (Nematoda: Philometridae) from the body cavity of the eyespot pufferfish Tetraodon biocellatus Tirant, and evolutionary relationships of this species with other dracunculoids as inferred from SSU rRNA gene sequences
Authors: Quiazon K. , Yoshinaga T. , Doi H. , Araki J. , Ogawa K. 
Published: September 2014

Abstract
Finding male philometrid nematodes is essential for taxonomic identification among congeneric species. In this study, male Philometra thaiensis Moravec, Fiala et Dyková, 2004 were collected and described for the first time, from the body cavity of the freshwater fish (eyespot pufferfish) Tetraodon biocellatus Tirant (Tetraodontiformes, Tetraodontidae), and conspecific females were redescribed based on the additional morphological biometrics examined. Molecular examination was carried out on the small subunit 18S rRNA, revealing the evolutionary relationships of P. thaiensis and reported philometrid species (Philometra and Philometroides) from Japan with other dracunculoids deposited in the GenBank. Based on the molecular data, there are some genera (Philometra, Philometroides, Clavinema, and Margolisianum [genus inquirendum]) requiring further morphological re-evaluation that should be supported with molecular data.
Influence of composition of the near-surface graded-gap layer on the admittance of metal-insulator-semiconductor structures based on graded-gap MBE n-Hg1−xCdxTe in wide temperature range
Authors: Voitsekhovskii A. , Nesmelov S. , Dzyadukh S. 
Published: September 2014

AbstractInfluence of the CdTe content in a near-surface graded-gap layer on the admittance of MIS-structures fabricated on the basis of heteroepitaxial Hg1−xCdxTe (x = 0.22–0.23 and 0.31–0.32) films grown by molecular beam epitaxy was investigated in a wide temperature range. It is shown that a temperature drop from 77 K to 8 K results in a decrease of hysteresis of the capacitance-voltage (C-V) characteristics and a decrease of frequencies which corresponds to a high-frequency behaviour of C-V characteristics of MIS-structures based on n-HgCdTe (x = 0.22–0.23) with and without graded-gap layersand also for MIS-structures based on n-HgCdTe (x = 0.31–0.32). Temperature dependences of the resistance of the epitaxial film bulk and differential resistance of the space-charge region (SCR) in strong inversion mode were studied. The experimental results can be explained by the fact that for MIS-structures based on n-HgCdTe (x = 0.22–0.23) with the graded-gap layers and for MIS-structures based on n-HgCdTe (x = 0.31–0.32), the differential resistance of SCR is limited by Shockley-Read generation at 25–77 K. Differential resistance of SCR for MIS-structures based on n-HgCdTe (x = 0.22–0.23) without the graded-gap layers is limited by tunnelling through deep levels at 8–77 K.
Wannier-Stark effect and electron-phonon interaction in macroporous silicon structures with SiO2 nanocoatings
Authors: Karachevtseva L. , Goltviansky Yu. , Kolesnyk O. , Lytvynenko O. , Stronska O. 
Published: September 2014

AbstractWe investigated the contribution of electron-phonon interaction to the broadening parameter Γ of the Wannier-Stark ladder levels in oxidized macroporous silicon structures with different concentration of Si-O-Si states (TO and LO phonons). The obtained value of the Wannier-Stark ladder parameter Γ is much less than the djacent level energy evaluated from giant oscillations of resonance electron scattering on the surface states. We determined the influence of broadening on the oscillation amplitude in IR absorption spectra as interaction of the surface multi-phonon polaritons with scattered electrons. This interaction transforms the resonance electron scattering in samples with low concentration of Si-O-Si states into ordinary scattering on ionized impurities for samples with high concentration of Si-O-Si states. The transformation takes place at the scattering lifetime coinciding with the period of electron oscillations in the surface electric field.
Argent russe, cérémonies tadjikes : faire et défaire les liens
Authors: Cleuziou Juliette 
Published: September 2014

Depuis la fin de la guerre civile au Tadjikistan (1992-1997), on observe une augmentation concomitante des flux migratoires des hommes vers la Russie et des dépenses pour les mariages. Cet article s’interroge sur le rôle des remises de fonds dans la négociation (maintien, rupture) des liens de parenté et des logiques de distribution et de circulation de biens à l’occasion des rituels des cycles de vie (mariages notamment), qui permettent à « ceux qui restent » de s’inscrire dans des réseaux de solidarité et d’entraide.
Poules aux œufs d'or, petits patrons ou pigeons ? Usages et mésusages de l'argent des émigrés de retour du Golfe au Caire
Authors: Gruntz Lucile 
Published: September 2014

L’émigration de retour des monarchies du Conseil de coopération du Golfe et l’argent envoyé au pays par les émigrés suscitent des attentes contradictoires au Caire. Pour leurs défenseurs, les émigrés et leurs économies doivent permettre d’amoindrir les coûts sociaux liés aux politiques libérales mises en œuvre depuis les années 1970 ; pour leurs pourfendeurs, ils sont des vecteurs de déréliction morale et politique. Afin de se distancier des discours politiquement situés sur les usages des économies des émigrés, l’article analyse comment les trajectoires individuelles s’articulent aux configurations de pouvoir entre le Golfe et Le Caire. À travers les investissements urbains et les styles de vie de 45 ménages d’émigrés de retour rencontrés au Caire entre 2006 et 2011, j’analyse comment l’argent des émigrés participe à la production de la ville et à la réinvention des conflictualités sociales en son sein.
Quand l'argent de la migration change la donne : développement agricole et dynamique foncière dans une localité de la province andine de l'Azuay (Équateur)
Authors: Rebaï Nasser 
Published: September 2014

Dans la paroisse Octavio Cordero Palacios, située dans la province andine de l’Azuay en Équateur, l’argent de la migration a entraîné de profonds changements ces dernières années, comme en témoignent les investissements agricoles réalisés par plusieurs anciens migrants après leur retour dans la localité. Si ce phénomène a déjà été observé dans d’autres régions des Suds, l’expérience équatorienne se distingue toutefois par le fait que ces anciens migrants se présentent dorénavant comme les acteurs centraux des recompositions foncières locales, allant jusqu’à provoquer d’importants conflits. Au-delà de la seule dimension économique, l’argent de la migration n’engendrerait-il pas une nouvelle forme de pouvoir ?
La microassurance des familles transnationales : une fausse bonne idée
Authors: Sulmont Annabelle 
Published: September 2014

Au Mexique et en Amérique Latine, les migrants et leurs familles constituent depuis quelques années une niche de marché attractive pour les institutions microfinancières qui n’arrivent toutefois pas à associer remises et microcrédits productifs. L’introduction récente d’une micro-assurance leur étant spécifiquement destinée marque une nouvelle tentative qui, bien qu’accompagnée d’un changement de paradigme substituant le mot vulnérabilité à l’expression « migration et développement », semble aussi infructueuse que les précédentes. Cette microassurance qui prévoit le rapatriement du corps du migrant décédé ainsi qu’une indemnisation apparentée à une remise mensuelle, pourtant sophistiquée et peu coûteuse, ne se vend pas. Il apparaît qu’elle ne parvient pas à répondre aux nécessités financières de ce public multisitué et aux ressources limitées. Pour lui, les remises, loin de constituer ce revenu supplémentaire fantasmé, s’intègrent à une gestion sophistiquée des risques.
Composition du conseil d'administration et rémunérations incitatives des dirigeants
Authors: Idi Cheffou Abdoulkarim 
Published: September 2014

La place des rémunérations incitatives dans l’alignement des intérêts des dirigeants sur ceux des actionnaires a largement été débattue dans la littérature. Le but de cette recherche est d’analyser le lien entre la composition du conseil d’administration des sociétés et les rémunérations incitatives au profit des dirigeants. Sur la base des données sur les rémunérations des dirigeants de 93 entreprises françaises cotées de 20 02 à 2011, les résultats de cette étude montrent un niveau élevé de la proportion des rémunérations incitatives dans la rémunération totale du dirigeant dans trois situations : lorsque la gouvernance de l’entreprise est caractérisée par le cumul du rôle du Directeur Général et celui de la présidence du conseil d’administration, si le conseil d’administration est de taille élevée et quand le pourcentage des administrateurs indépendants qui siègent dans le conseil d’administration est important. Ces résultats pourraient signifier que la présence des administrateurs indépendants au sein des conseils aide les entreprises à choisir un design de la rémunération des dirigeants qui va dans le sens de la réduction des conflits d’agence.
Politique de rémunération incitative du dirigeant et divulgation d'informations RSE
Authors: Dardour Ali , Husser Jocelyn 
Published: September 2014

Cette recherche examine l’effet de l’engagement des sociétés cotées dans la divulgation d’informations concernant la responsabilité sociale des entreprises (RSE) sur la rémunération de leurs dirigeants. L’étude empirique menée a porté sur un échantillon composé des sociétés cotées au SBF 120. Elle présente l’originalité d’étudier la rémunération des dirigeants à partir de quatre mesures : le niveau de la rémunération incitative, la part de la rémunération incitative, la part de la rémunération incitative à court terme et la part de la rémunération incitative à long terme. Le niveau de la rémunération incitative du dirigeant est associé positivement aux scores de divulgation RSE, environnemental et de gouvernance. La part de la rémunération incitative des dirigeants, quant à elle, est seulement associée positivement au score de divulgation environnemental. De plus, lorsque la rémunération incitative est décomposée en part à court terme et part à long terme, l’étude montre que seule cette dernière composante est associée positivement au score environnemental. Une explication possible à ces résultats réside dans le fait que le score environnemental lève une asymétrie d’information sur un facteur de risque élevé pour les investisseurs.
Les nouveaux formats alimentaires de proximité : regards croisés des distributeurs et des consommateurs
Authors: Gahinet Marie-Christine 
Published: September 2014

Les groupes de distribution alimentaire ont majoritairement développé de nouveaux concepts de proximité au cours de ces dernières années. A quelle dimension de la proximité répondent ces nouveaux concepts ? Quelles sont les véritables attentes des consommateurs qui fréquentent ces formats de magasins ? A travers une approche qualitative basée sur la réalisation de 22 entretiens, à la fois auprès d’experts de la distribution et auprès de consommateurs, il apparaît que la recherche de gain de temps est un élément crucial de la fréquentation de ces magasins. Si les distributeurs ont bien pris en compte certaines attentes notamment en termes de gain de temps de trajet et de visite, ils ont parfois minoré d’autres aspects comme le gain de temps sur la préparation des achats et la notion de plaisir.
Ordre scolaire et ordre économique
Authors: Rozier Sabine 
Published: September 2014

Cet article analyse les conditions d’appropriation et d’usage d’une innovation pédagogique (la « mini-entreprise ») ayant vocation à développer les compétences entrepreneuriales des élèves en milieu scolaire. À rebours des analyses d’inspiration foucaldienne, appréhendant ce type de pédagogie comme un instrument de production d’un nouvel éthos ajusté aux exigences d’un monde valorisant la concurrence interindividuelle, l’article montre, en s’appuyant sur une enquête menée dans des établissements scolaires, que ces projets, surtout destinés aux élèves de milieux populaires et de classes moyennes, sont avant tout mobilisés au service des finalités de l’institution scolaire, et tendent moins à acclimater les élèves à des réflexes de pensée et d’action entrepreneuriaux, qu’à les familiariser avec les places que leur assigne le système scolaire et, partant, avec celles que leur réserve le système productif.
Swept-Source OCT Angiography of the Retinal Vasculature Using Intensity Differentiation-based Optical Microangiography Algorithms
Authors: Huang Yanping , Zhang Qinqin , Thorell Mariana R. , An Lin , Durbin Mary K. , Laron Michal , Sharma Utkarsh , Gregori Giovanni , Rosenfeld Philip J. , Wang Ruikang K. 
Published: September 2014

BACKGROUND AND OBJECTIVE:
To demonstrate the feasibility of using a 1,050-nm swept-source optical coherence tomography (SS-OCT) system to achieve noninvasive retinal vasculature imaging in human eyes.

MATERIALS AND METHODS:
Volumetric data sets were acquired using a 1-µm SS-OCT prototype that operated at a 100-kHz A-line rate. A scanning protocol designed to allow for motion contrast processing, referred to as OCT angiography or optical microangiography (OMAG), was used to scan an approximately 3 × 3–mm area in the central macular region of the retina within approximately 4.5 seconds. An intensity differentiation-based OMAG algorithm was used to extract three-dimensional retinal functional microvasculature information.

RESULTS:
Intensity signal differentiation generated capillary-level resolution en face OMAG images of the retina. The parafoveal capillaries were clearly visible, thereby allowing visualization of the foveal avascular zone in healthy subjects.

CONCLUSION:
The capability of OMAG to produce retinal vascular images was demonstrated using the 1-µm SS-OCT prototype. This technique has potential clinical value for studying retinal vasculature abnormalities.

[
Ophthalmic Surg Lasers Imaging Retina.
2014;45:382–389.]