bluuebunny/crossref_metadata_2025 huggingface dataset:
Characterization of High-Avidity Cytomegalovirus-Specific T Cells with Differential Tetramer Binding Coappearing after Allogeneic Stem Cell Transplantation
Authors: Ogonek Justyna , Verma Kriti , Schultze-Florey Christian , Varanasi Pavankumar , Luther Susanne , Schweier Patrick , Kühnau Wolfgang , Göhring Gudrun , Dammann Elke , Stadler Michael , Ganser Arnold , Koehl Ulrike , Koenecke Christian , Weissinger Eva M. , Hambach Lothar
Published: June 2017

CMV reactivation is a major complication after allogeneic stem cell transplantation (SCT). Immune reconstitution of CMV-specific CTLs (CMV-CTLs) is essential for virus control. During CMV-CTL monitoring using mutated HLA/CMV tetramers selectively detecting high-avidity T cells, we observed coappearance of CMV-CTLs with low (CMV tetlow CTLs) and high tetramer binding (CMV tethigh CTLs) in 53/115 CMV IgG+ patients stem cell transplanted from CMV IgG+ donors. However, the relevance of these coappearing differentially tetramer binding (“dual”) CMV-CTLs was unclear. In this study, we investigated the kinetics, properties, and clinical impact of coappearing CMV tetlow and tethigh CTLs after allogeneic SCT. Patients with dual CMV-CTLs had more CMV tethigh than tetlow CTLs. Chimerism analysis of isolated CMV tetlow and tethigh CTLs revealed their exclusive donor origin. CMV tetlow and tethigh CTLs had an identical effector memory CD45RA−CCR7− and CD45RA+CCR7− T cell distribution, equal differentiation, senescence, and exhaustion marker expression and were negative for regulatory CD8+ T cell markers. Isolated CMV tetlow and tethigh CTLs were equally sensitive to CMV peptides in IFN-γ release and cytotoxicity assays. However, CMV tethigh CTLs proliferated more in response to low CMV peptide concentrations than tetlow CTLs. TCR repertoire analysis revealed that CMV tetlow and tethigh CTLs use different TCRs. Finally, dual CMV-CTLs were not associated with CMV antigenemia. In conclusion, these data show for the first time, to our knowledge, that both CMV tetlow and tethigh CTLs are functional effector T cells differing by proliferation, numbers in peripheral blood, and probably by their precursors without increasing the CMV reactivation risk after allogeneic SCT.
Analysis of Hexagonal Grid Finite Difference Methods for Anisotropic Laplacian Related Equations
Authors: Lee Daniel
Published: June 2017

Hexagonal grids are valuable in two-dimensional applications involving Laplacian. The methods and analysis are investigated in current work in both linear and nonlinear problems related to anisotropic Laplacian. Ordinary and compact hexagonal grid finite difference methods are developed by elementary arguments, and then analyzed by perturbation for standard Laplacian. In the anisotropic case, analysis is done through reduction to the standard one by using Fourier vectors of mixed types. These hexagonal seven-point methods, with established theoretic stabilities and accuracies, are numerically confirmed in linear and semi-linear anisotropic Poisson problems, and can be applied also in time-dependent problems and in many applications in two-dimensional irregular domains.
Estimación de parámetros de estructura de nogales utilizando láser escáner terrestre
Authors: Estornell J. , Velázquez-Martí A. , Fernández-Sarría A. , López-Cortés I. , Martí-Gavilá J. , Salazar D.
Published: June 2017

Juglans regia L. (walnut) is a tree of significant economic importance, usually cultivated for its seed used in the food market, and for its wood used in the furniture industry. The aim of this work was to develop regression models to predict crown parameters for walnut trees using a terrestrial laser scanner. A set of 30 trees was selected and the total height, crown height and crown diameter were measured in the field. The trees were also measured by a laser scanner and algorithms were applied to compute the crown volume, crown diameter, total and crown height. Linear regression models were calculated to estimate walnut tree parameters from TLS data. Good results were obtained with values of R2 between 0.90 and 0.98. In addition, to analyze whether coarser point cloud densities might affect the results, the point clouds for all trees were subsampled using different point densities: points every 0.005 m, 0.01 m, 0.05 m, 0.1 m, 0.25 m, 0.5 m, 1 m, and 2 m. New regression models were calculated to estimate field parameters. For total height and crown volume good estimations were obtained from TLS parameters derived for all subsampled point cloud (0.005 m – 2 m).
Falar e mostrar para provar: uma contribuição teórica sobre a utilização dos gestos ostensivos wittgensteinianos como auxiliares na prova matemática
Authors: Oliveira Marcelo Sousa , Silveira Marisa Rosâni Abreu
Published: June 2017

http://dx.doi.org/10.5007/1982-5153.2016v9n2p271Este artigo, de natureza teórica, tem o objetivo de tratar da utilização de gestos ostensivos como auxiliares do professor no processo de mostrar provas matemáticas aos seus alunos. Para tanto, discorremos sobre alguns conceitos utilizados nas aulas de matemática, tais como o conceito de prova e de demonstração que são passíveis do uso de gestos ostensivos na busca do sentido de proposições matemáticas. Nossas análises estão apoiadas na filosofia de Ludwig Wittgenstein, em alguns textos de comentadores de sua filosofia e de alguns educadores matemáticos que a usam como fundamentação filosófica.
A detailed characterization of the Saharan dust collected during the Fennec Campaign in 2011: in situ ground-based and laboratory measurements
Authors: Rocha-Lima Adriana , Martins J. Vanderlei , Remer Lorraine A. , Todd Martin , Marsham John H. , Engelstaedter Sebastian , Ryder Claire L. , Cavazos-Guerra Carolina , Artaxo Paulo , Colarco Peter , Washington Richard
Published: June 2017

Abstract. Millions of tons of mineral dust are lifted by the wind from arid surfaces and transported around the globe every year. The physical and chemical properties of the mineral dust are needed to better constrain remote sensing observations and are of fundamental importance for the understanding of dust atmospheric processes. Ground-based in situ measurements and in situ filter collection of Saharan dust were obtained during the Fennec campaign in the central Sahara in 2011. This paper presents results of the absorption and scattering coefficients, and hence, single scattering albedo (SSA), of the Saharan dust measured in real time during the last period of the campaign, and subsequent laboratory analysis of the dust samples collected in two supersites, SS1 and SS2, in Algeria and in Mauritania, respectively. The samples were taken to the laboratory where their size and aspect ratio distributions, mean chemical composition, spectral mass absorption efficiency and spectral imaginary refractive index were obtained from the ultraviolet (UV) to the near infrared (NIR) wavelengths. At SS1 in Algeria, the time series of the scattering coefficients during the period of the campaign show dust events exceeding 3500 Mm−1 and a relatively high mean SSA of 0.995 at 670 nm was observed at this site. The laboratory results show for the fine distributions in both sites a spectral dependence of the imaginary part of the refractive index Im(m) with a bow-like shape, with increased absorption in ultraviolet and also in the shortwave infrared. The same signature was not observed, however, in the mixed size distribution in Algeria. Im(m) was found to range from 0.011 to 0.001i for dust collected in Algeria and 0.008 to 0.002i for dust collected in Mauritania over the wavelength range of 350–2500 nm. Differences in the mean elemental composition of the dust collected in the supersites in Algeria and in Mauritania and between fine and mixed modes distributions were observed from EDXRF measurements, although those differences cannot be used to explain the optical properties variability between the samples. Finally, particles with low-density typically larger than 10 μm in diameter were found in some of the samples collected at the supersite in Mauritania, but these low-density particles were not observed in Algeria.
Pore water geochemistry along continental slopes north of the East Siberian Sea: inference of low methane concentrations
Authors: Miller Clint M. , Dickens Gerald R. , Jakobsson Martin , Johansson Carina , Koshurnikov Andrey , O'Regan Matt , Muschitiello Francesco , Stranne Christian , Mörth Carl-Magnus
Published: June 2017

Abstract. Continental slopes north of the East Siberian Sea potentially hold large amounts of methane (CH4) in sediments as gas hydrate and free gas. Although release of this CH4 to the ocean and atmosphere has become a topic of discussion, the region remains sparingly explored. Here we present pore water chemistry results from 32 sediment cores taken during Leg 2 of the 2014 joint Swedish–Russian–US Arctic Ocean Investigation of Climate–Cryosphere–Carbon Interactions (SWERUS-C3) expedition. The cores come from depth transects across the slope and rise extending between the Mendeleev and the Lomonosov ridges, north of Wrangel Island and the New Siberian Islands, respectively. Upward CH4 flux towards the seafloor, as inferred from profiles of dissolved sulfate (SO42−), alkalinity, and the δ13C of dissolved inorganic carbon (DIC), is negligible at all stations east of 143° E longitude. In the upper 8 m of these cores, downward SO42− flux never exceeds 6.2 mol m−2 kyr−1, the upward alkalinity flux never exceeds 6.8 mol m−2 kyr−1, and δ13C composition of DIC (δ13C-DIC) only moderately decreases with depth (−3.6 ‰ m−1 on average). Moreover, upon addition of Zn acetate to pore water samples, ZnS did not precipitate, indicating a lack of dissolved H2S. Phosphate, ammonium, and metal profiles reveal that metal oxide reduction by organic carbon dominates the geochemical environment and supports very low organic carbon turnover rates. A single core on the Lomonosov Ridge differs, as diffusive fluxes for SO42− and alkalinity were 13.9 and 11.3 mol m−2 kyr−1, respectively, the δ13C-DIC gradient was 5.6 ‰ m−1, and Mn2+ reduction terminated within 1.3 m of the seafloor. These are among the first pore water results generated from this vast climatically sensitive region, and they imply that abundant CH4, including gas hydrates, do not characterize the East Siberian Sea slope or rise along the investigated depth transects. This contradicts previous modeling and discussions, which due to the lack of data are almost entirely based on assumption.
Process-level improvements in CMIP5 models and their impact on
tropical variability, Southern Ocean and monsoons
Authors: Lauer Axel , Jones Colin , Eyring Veronika , Evaldsson Martin , Hagemann Stefan , Mäkelä Jarmo , Martin Gill , Roehrig Romain , Wang Shiyu
Published: June 2017

Abstract. The performance of improved versions of the four earth system models (ESMs) CNRM, EC-Earth, HadGEM, and MPI-ESM is assessed in comparison to their predecessor versions used in Phase 5 of the Coupled Model Intercomparison Project. The earth System Model Evaluation Tool (ESMValTool) is applied to evaluate selected climate phenomena in the models against observations. This is the first systematic application of the ESMValTool to assess and document the progress made during an extensive model development and improvement project. This study focuses on the South Asian (SAM) and West African (WAM) monsoons, the coupled equatorial climate, and Southern Ocean clouds and radiation, which are known to exhibit systematic biases in present-day ESMs. The analysis shows that the tropical precipitation in three out of four models is significantly improved. Two of three updated coupled models show an improved representation of tropical sea surface temperatures with one coupled model not exhibiting a double Inter-Tropical Convergence Zone. Simulated cloud amounts and cloud-radiation interactions are improved over the Southern Ocean. Improvements are also seen in the simulation of the SAM and WAM, although systematic biases remain in regional details and the timing of monsoon rainfall. Analysis of simulations with EC-Earth at different horizontal resolutions from T159 up to T1279 shows that the synoptic-scale variability of precipitation over the SAM and WAM regions improves with higher model resolution. The results suggest the reasonably good agreement of modeled and observed mean WAM and SAM rainfall in lower resolution models may be a result of unrealistic intensity distributions.
A 156 kyr smoothed history of the atmospheric greenhouse gases CO2, CH4, and N2O and their radiative forcing
Authors: Köhler Peter , Nehrbass-Ahles Christoph , Schmitt Jochen , Stocker Thomas F. , Fischer Hubertus
Published: June 2017

Abstract. Continuous records of the atmospheric greenhouse gases (GHGs) CO2, CH4, and N2O are necessary input data for transient climate simulations, and their associated radiative forcing represents important components in analyses of climate sensitivity and feedbacks. Since the available data from ice cores are discontinuous and partly ambiguous, a well-documented decision process during data compilation followed by some interpolating post-processing is necessary to obtain those desired time series. Here, we document our best possible data compilation of published ice core records and recent measurements on firn air and atmospheric samples spanning the interval from the penultimate glacial maximum ( ∼  156 kyr BP) to the beginning of the year 2016 CE. We use the most recent age scales for the ice core data and apply a smoothing spline method to translate the discrete and irregularly spaced data points into continuous time series. These splines are then used to compute the radiative forcing for each GHG using well-established, simple formulations. We compile only a Southern Hemisphere record of CH4 and discuss how much larger a Northern Hemisphere or global CH4 record might have been due to its interpolar difference. The uncertainties of the individual data points are considered in the spline procedure. Based on the given data resolution, time-dependent cutoff periods of the spline, defining the degree of smoothing, are prescribed, ranging from 5000 years for the less resolved older parts of the records to 4 years for the densely sampled recent years. The computed splines seamlessly describe the GHG evolution on orbital and millennial timescales for glacial and glacial–interglacial variations and on centennial and decadal timescales for anthropogenic times. Data connected with this paper, including raw data and final splines, are available at doi:10.1594/PANGAEA.871273.
SHORT COMMUNICATION: Massive Erosion in Monsoonal Central India Linked to Late Holocene Landcover Degradation
Authors: Giosan Liviu , Ponton Camilo , Usman Muhammed , Blusztajn Jerzy , Fuller Dorian , Galy Valier , Haghipour Negar , Johnson Joel E. , McIntyre Cameron , Wacker Lucas , Eglinton Timothy
Published: June 2017

Abstract. Soil erosion plays a crucial role in transferring sediment and carbon from land to sea, yet little is known about the rhythm and rates of soil erosion prior to the most recent few centuries. Here we reconstruct a Holocene erosional history from central India, as integrated by the Godavari River in a sediment core from the Bay of Bengal. We quantify terrigenous fluxes, fingerprint sources for the lithogenic fraction and assess the age of the exported terrigenous carbon. Taken together, our data show that the monsoon decline in the late Holocene, later exacerbated by the Neolithic adoption and Iron Age extensification of agriculture on the Deccan Plateau, significantly increased soil erosion and the age of exported organic carbon. Despite a constantly elevated sea level since the middle Holocene, this erosion acceleration led to rapid continental margin growth. We conclude that in monsoon conditions, aridity boosts rather than supresses sediment and carbon export acting as a veritable monsoon erosional pump modulated by landcover conditions.
Modular System for Shelves and Coasts (MOSSCO v1.0) – a flexible
and multi-component framework for coupled coastal ocean
ecosystem modelling
Authors: Lemmen Carsten , Hofmeister Richard , Klingbeil Knut , Nasermoaddeli M. Hassan , Kerimoglu Onur , Burchard Hans , Kösters Frank , Wirtz Kai W.
Published: June 2017

Abstract. Shelf and coastal sea processes extend from the atmosphere through the water column and into the sea bed. These processes are driven by physical, chemical, and biological interactions at local scales, and they are influenced by transport and cross strong spatial gradients. The linkages between domains and many different processes are not adequately described in current model systems. Their limited integration level in part reflects lacking modularity and flexibility; this shortcoming hinders the exchange of data and model components and has historically imposed supremacy of specific physical driver models. We here present the Modular System for Shelves and Coasts (MOSSCO, http://www.mossco.de), a novel domain and process coupling system tailored – but not limited – to the coupling challenges of and applications in the coastal ocean. MOSSCO builds on the existing coupling technology Earth System Modeling Framework and on the Framework for Aquatic Biogeochemical Models, thereby creating a unique level of modularity in both domain and process coupling; the new framework adds rich metadata, flexible scheduling, configurations that allow several tens of models to be coupled, and tested setups for coastal coupled applications. That way, MOSSCO addresses the technology needs of a growing marine coastal Earth System community that encompasses very different disciplines, numerical tools, and research questions.
Explaining the convector effect in canopy turbulence by means of large-eddy simulation
Authors: Banerjee Tirtha , De Roo Frederik , Mauder Matthias
Published: June 2017

Abstract. Semi-arid forests are found to sustain a massive sensible heat flux in spite of having a low surface to air temperature difference by lowering the aerodynamic resistance to heat transfer (rH) – a property called the canopy convector effect (CCE). In this work large-eddy simulations are used to demonstrate that the CCE appears more generally in canopy turbulence. It is indeed a generic feature of canopy turbulence: rH of a canopy is found to reduce with increasing unstable stratification, which effectively increases the aerodynamic roughness for the same physical roughness of the canopy. This relation offers a sufficient condition to construct a general description of the CCE. In addition, we review existing parameterizations for rH from the evapotranspiration literature and test to what extent they are able to capture the CCE, thereby exploring the possibility of an improved parameterization.
Optimal heavy tail estimation, Part I: Order selection
Authors: Mudelsee Manfred , Bermejo Miguel A.
Published: June 2017

Abstract. The tail probability, P, of the distribution of a variable is important for risk analysis of extremes. Many variables in complex geophysical systems show heavy tails, where P decreases with the value, x, of a variable as a power law with characteristic exponent, α. Accurate estimation of α on the basis of data is currently hindered by the problem of the selection of the order, that is, the number of largest x-values to utilize for the estimation. This paper presents a new, widely applicable, data-adaptive order selector, which is based on computer simulations and brute force search. It is the first in a set of papers on optimal heavy tail estimation. The new selector outperforms competitors in a Monte Carlo experiment, where simulated data are generated from stable distributions and AR(1) serial dependence. We calculate error bars for the estimated α by means of simulations. We illustrate the method on an artificial time series. We apply it to an observed, hydrological time series from the river Elbe and find an estimated characteristic exponent of 1.48 ± 0.13. This result indicates finite mean but infinite variance of the statistical distribution of river runoff.
Demonstration and uncertainty analysis of synchronised scanning lidar measurements of 2-D velocity fields in a boundary-layer wind tunnel
Authors: van Dooren Marijn Floris , Campagnolo Filippo , Sjöholm Mikael , Angelou Nikolas , Mikkelsen Torben , Kühn Martin
Published: June 2017

Abstract. This paper combines the research methodologies of scaled wind turbine model experiments in wind tunnels with short-range WindScanner lidar measurement technology. The wind tunnel at the Politecnico di Milano was equipped with three wind turbine models and two short-range WindScanner lidars to demonstrate the benefits of synchronised scanning lidars in such experimental surroundings for the first time. The dual-lidar system can provide fully synchronised trajectory scans with sampling timescales ranging from seconds to minutes. First, staring mode measurements were compared to hot-wire probe measurements commonly used in wind tunnels. This yielded goodness of fit coefficients of 0.969 and 0.902 for the 1 Hz averaged u and v components of the wind speed, respectively, validating the 2-D measurement capability of the lidar scanners. Subsequently, the measurement of wake profiles on a line as well as wake area scans were executed to illustrate the applicability of lidar scanning to the measurement of small-scale wind flow effects. An extensive uncertainty analysis was executed to assess the accuracy of the method. The downsides of lidar with respect to the hot-wire probes are the larger measurement probe volume, which compromises the ability to measure turbulence, and the possible loss of a small part of the measurements due to hard target beam reflection. In contrast, the benefits are the high flexibility in conducting both point measurements and area scanning and the fact that remote sensing techniques do not disturb the flow during measuring. The research campaign revealed a high potential for using short-range synchronised scanning lidars to measure the flow around wind turbines in a wind tunnel and increased the knowledge about the corresponding uncertainties.
SKIRTINGŲ PROFILIŲ SVEIKATOS PRIEŽIŪROS SPECIALISTŲ
POŽIŪRIS Į KINEZITERAPIJĄ
Authors: Ašmontaitė Evelina , Radžiūnienė Margarita
Published: June 2017

Tyrimo tikslas – ištirti skirtingų profilių sveikatos
priežiūros specialistų požiūrį į kineziterapiją. Tyrimo
klausimas: kokia skirtingų profilių sveikatos
priežiūros specialistų nuomonė apie kineziterapiją ?
Tyrimo metodika. Darbe taikytas kokybinis tyrimo
metodas. Tyrimo duomenims rinkti pasirinktas
buvo individualaus interviu metodas. Atliekant interviu
tyrimo dalyviams buvo pateiktas klausimynas,
sudarytas iš 16 klausimų.
Tiriamieji. Tyrime dalyvavo 20 tiriamųjų – 5 fizinės
medicinos ir reabilitacijos gydytojai, 5 šeimos
gydytojai, 5 odontologai ir 5 ortopedai – traumatologai.
Tyrime dalyvavo sveikatos priežiūros specialistai,
savanoriškai sutikę atsakyti į pateiktus klausimus.
Išvados. Tyrime dalyvavusių sveikatos priežiūros
specialistų nuomonė buvo vieninga: kineziterapija
yra gydymas judesiu. Kineziterapeuto veiklą skirtingi
sveikatos priežiūros specialistai įvardija ne
vienodai: atlieka mankštą, kurią paskiria fizinės
medicinos ir reabilitacijos gydytojas ar kineziterapeutas,
ištiria ir įvertina pacientą ir pats sudaro individualią
programą bei ją koreguoja gydymo procese,
nustato kineziterapijos diagnozę ar stebi paciento
atliekamus pratimus, konsultuoja sveikos gyvensenos
klausimais. Apklausti sveikatos priežiūros
specialistai įvardija akivaizdų neatitikimą tarp
gerai dirbančių ir ruošiamų kineziterapeutų skaičių
– gerų specialistų didelis trūkumas. Ne mažai apklaustų
sveikatos priežiūros specialistų kineziterapeuto
atliekamą darbą įvardijo kaip pagalbinę gydymo
priemonę.
Crise, poesia e política
Authors: Pilati Alexandre
Published: June 2017

O artigo discute a função política da poesia em relação à crise do capitalismo contemporâneo. São apresentadas hipóteses sobre a forma específica como o lirismo é capaz de captar a dinâmica da História e de criar possibilidades de resistência ao mundo reificado.
Almada Negreiros, le peintre de la vie moderne, ou o artista de Olhos de Gigante
Authors: Tocco Valeria
Published: June 2017

A exposição Almada Negreiros, artista prismático oferece uma síntese sobre os eixos da interpretação do Modernismo que o artista português desenvolve na sua longa carreira plástica e literária, que abrange grande parte do séc. XX. Este breve texto visa realçar o papel de Almada Negreiros na peculiar eclinação portuguesa das poéticas do Modernismo, ao lado dos mais estudados e consagrados poetas: Fernando Pessoa e Mário de Sá-Carneiro.
Demanda y oferta de educación superior: Integración total de la cadena de valor y las cadenas de suministro
Authors: Ortega Jiménez César H. , Eguía Salinas Ignacio
Published: June 2017

Para la demanda y oferta de educación superior (ES), se propone un modelo sistémico que integra una cadena de valor y dos de suministro de ES de Honduras, que incluye los insumos/entradas de ES (ej. graduados de educación media), el proceso de ES, las salidas/resultados de la ES. Para ello, se toman todos los actores de lo que podría ser considerado como un sistema de valor y de suministro de ES (proveedores de insumos, ofertantes/universidades y demandantes/ beneficiarios de resultados) para entender como sus interrelaciones contribuye al éxito de las operaciones de las tres funciones fundamentales de ES: docencia, investigación y vinculación con la sociedad. Así pues, la perspectiva holística considera tanto a una cadena de suministro de docencia (transferencia de conocimiento a estudiantes para convertirse en profesionales como parte del capital intelectual de ES), como a una cadena de suministro de investigación/proyecto (producción de conocimiento), así como una cadena de valor de la vinculación con la sociedad, que realimente el valor percibido de los resultados de ES (profesionales e investigación) entregados a sus demandantes. Así pues, dicha integración muestra no sólo el valor añadido por el proceso de la ES a ambos suministros (docencia e investigación), sino también la productividad de ambos, mejorando continuamente el flujo bidireccional ES-sociedad (Oferta y Demanda de ES). Todo ello como fundamento para investigaciones futuras, en un proyecto de ES en marcha, que permitan la articulación eficiente y eficaz entre proveedor de insumos, ofertante de ES y demandante de ES, guiada por la demanda (valor suplido al demandante) desde un modelo de un sistema de valor y de suministro con integración total (una ES articulada no sólo hacia adelante por la demanda, sino también hacia atrás por la oferta).
La percepción de los eslabones de la cadena de valor y suministro de la educación superior: Vista desde los Actores vinculados
Authors: Díaz Reyes Margarita Elizabeth
Published: June 2017

Se realizó una consulta a las instituciones vinculadas a la educación superior y la demanda de profesionales universitarios: i.- Universidades públicas y privadas, ii.- Instituciones gubernamentales central y descentralizadas, iii.- Instituciones privadas gremiales o productivas, todas ellas vinculadas a los eslabones que conforman “La cadena de valor y suministro de la educación superior”.Los eslabones de la cadena de valor identificaron fueron: i.- Proveedores de insumos: Graduados de secundaria, familia, gobierno y organizaciones privadas, escuelas del profesorado, colegios; 2: Educación Superior: Universidades, centros de investigación; 3: Demandante Intermedio: profesionales, cooperantes, resultados de investigación; 4: Demandante Final: Sociedad, empleadores. Todos estos eslabones vinculados en una dinámica funcional de relaciones de oferta y demanda de profesionales universitarios desde su formación hasta su ubicación dentro del mercado laboral.Se buscó determinar las vinculaciones existentes entre las instituciones a las que ellas representaban y el resto de las instituciones dentro de la cadena, de manera de ver las interacciones y de como generan insumos al siguiente eslabón de la misma. Lo cual se tornó aun más interesante porque dependiendo de posición del eslabón dentro de la cadena, si ofrece mas insumos que lo que demanda, o si por otro lado, ejerce mas demanda de los profesionales que salen de las universidades, absolutamente todas las instituciones concluyeron interesantes observaciones de como están las universidades del país actualmente y en que aspectos se debería mejorar ofrecer mejores profesionales universitarios.
Constructos teóricos para la gestión de operaciones del sistema integrado de valor y de suministro de educación superior (SIVSES)
Authors: Ortega J. César H. , Eguía Salina Ignacio , Arita León Jorge A.
Published: June 2017

La presente investigación considera los fundamentos teóricos establecidos en la literatura por el modelo del Sistema Integrado de Valor y de Suministro de Educación Superior (SIVSES). Dicho modelo propone articular y balancear la demanda y la oferta de Educación Superior (ES), por medio de la integración total entre la cadena de valor de la vinculación de ES-demanda de ES, que permita medir el valor percibido por los demandantes de los profesionales de ES y de resultados de investigación de ES, y el valor añadido en sus insumos (ej. estudiantes y propuestas de investigación), durante los procesos de ambas cadenas de suministro de ES (docencia e investigación). Así pues, tomando el modelo teórico del SIVSES (como un mejor y más completo marco de referencia que modelos anteriores en la literatura), se plantean algunos elementos para su gestión de operaciones. Por tanto, este estudio exploratorio provee un marco conceptual importante para operativizar la teoría holística del SIVSES, su provisión de insumos, su oferta y su demanda, como paso previo al estudio empírico posterior que permita testear la teoría de tal modelo.
Oscilaciones macroeconómicas de Honduras y Costa Rica en relación a las economías de los países desarrollados
Authors: Acevedo Mario Roberto
Published: June 2017

La estabilidad económica de las potencias mundiales no ha logrado ser sostenible en el tiempo debido a los sucesos políticos, económicos y a los efectos que lleva consigo la globalización. Dicha inestabilidad provoca un efecto multiplicador para aquellos países cuya economía gira en torno a las grandes potencias. En este sentido, se plantea un estudio de los ciclos económicos de Alemania, Estados Unidos y Hong Kong que permita conocer los puntos de giro, la similitud y tendencias de las oscilaciones, periodos, rangos y desfases, desviaciones, así como las asimetrías que puedan existir entre estas economías para crear un análisis reflexivo de la dependencia y correlación de economías subdesarrolladas como las de Honduras y Costa Rica hacia los países en mención. Para ello, se toma como base las variaciones del Producto Interno Bruto (PIB), PIB per cápita, superávit o déficit de efectivo, Deuda Externa y la Inversión Extranjera Directa para un periodo de tiempo de diez y nueve años.
Mental Health and Academic Success of First-Year College Students
Authors: Wyatt Tammy Jordan , Oswalt Sara B , Ochoa Yesenia
Published: June 2017

The prevalence and severity of mental health issues are increasing among college students, and such issues pose a threat to health and academic performance. Responses from 66,159 undergraduate students about mental health and academics from the American College Health Association-National College Health Assessment II were examined using regression analyses. Differences in mental health diagnoses were found by classification with first-year students reporting higher rates of self-injury and seriously considering suicide. Upperclassmen reported higher rates of academic impact from mental health factors. Findings indicate one’s first-year of college as the prime time to promote awareness of and strategies to prevent mental health issues or negative academic effects; implications for first-year experience programs are discussed.
VvWRKY13 enhances ABA biosynthesis in Vitis vinifera
Authors: Hao JIe , Ma Qian , Hou Lixia , Zhao Fanggui , Xin Liu
Published: June 2017

Abscisic acid (ABA) plays critical roles in plant growth and development as well as in plants’ responses to abiotic stresses. We previously isolated VvWRKY13, a novel transcription factor, from Vitis vinifera (grapevine), and here we present evidence that VvWRKY13 may regulate ABA biosynthesis in plants. When VvWRKY13 was ectopically expressed in Arabidopsis, the transgenic lines showed delayed seed germination, smaller stomatal aperture size, and several other phenotypic changes, indicating elevated ABA levels in these plants. Sequence analysis of several genes that are involved in grapevine ABA synthetic pathway identified WRKY-specific binding elements (W-box or W-like box) in the promoter regions. Indeed, transient overexpression of VvWRKY13 in grapevine leaves significantly increased the transcript levels of ABA synthetic pathway genes. Taken together, we conclude that VvWRKY13 may promote ABA production by activating genes in the ABA synthetic pathway.
ANALYSIS OF EXERCISE INTENSITY AND THE LEVEL OF THE BODY’S ADAPTATION TO HIGH ALTITUDE CONDITIONS WHILE TREKKING IN THE HIMALAYA MOUNTAINS
Authors: Jakubik Katarzyna , Magiera Artur , Tomik Rajmund
Published: June 2017

Aim. The authors submitting this article considering that hiking at high altitudes is a form of active sport tourism, which enjoys growing popularity among tourists worldwide, assumed that the practice of trekking at altitudes above 2,500 meters (above sea level) is equivalent to activity of high intensity and carries a risk of high-altitude diseases. Basic procedures. The authors claim that despite the rapid progress of medical science, the problem of the economy of oxygen at high altitudes is not clearly understood. It is still the subject of many discussions and theoretical considerations. Main findings. The analysis were conducted in Nepal, in the Himalaya Mountains, during a trekking expedition to the Mount Everest Base Camp, in October 2015. The study group consisted of 10 people (5 women and 5 men). The study used specialized measurement equipment- a heart rate monitor (sport-testers). Results. During the studies, data from heart rate monitors from the six days of trekking were collected. The presented data demonstrate the influence of height above sea level on the average heart rate in the study group. Conclusions. On balance, the average heart rate in the study group decreases in direct proportion to the increase in altitude. The final analysis shows that the correct process of acclimatization is the most important factor in this research.
POLISH RESEARCHERS’ THEORETICAL AND EMPIRICAL APPROACH TO DISABILITY: FROM THE PERSPECTIVE OF DISABILITY STUDIES
Authors: Głodkowska Joanna , Pągowska Marta
Published: June 2017

The article presents Polish researchers' scientific approaches to the phenomenon of disability in a historical perspective and in view of modern interdisciplinary theoretical and empirical studies. Humanistic and social approaches to disability create a new, interdisciplinary cognitive space. Researchers highlight the strengths, potential and developmental power of people with disabilities more and more clearly. From this perspective, disability is not perceived as an individual problem only. It is becoming apparent that it is necessary to carry out detailed and multidimensional empirical investigations that take into consideration the social, cultural and political context of how people with disabilities live. The article looks at Polish researchers' achievements that fit in with the trend dating from the second half of the 20th century - Disability Studies. The authors review and analyze paradigms of disability to show positivist and humanistic research orientations, methodological pluralism and an interdisciplinary approach to the phenomenon of disability.
WIELOWYMIAROWA SKALA AKCEPTACJI UTRATY SPRAWNOŚCI (WSAUS)
– POLSKA ADAPTACJA MULTIDIMENSIONAL ACCEPTANCE OF LOSS SCALE
JAMESA M. FERRINA, FONGA CHANA, JULIE CHRONISTER I CHIY CHIU
Authors: Byra Stanisława
Published: June 2017

Artykuł prezentuje polską adaptację narzędzia Multidimensional Acceptance of Loss Scale. Skala ta służy do diagnozowania akceptacji niepełnosprawności, zgodnie z jej rozumieniem zawartym w teorii akceptacji straty Beatrice Wright. W artykule zawarto informacje związane z opracowaniem polskiej wersji językowej skali oraz sprawdzaniem jej właściwości psychometrycznych. Badania walidacyjne przeprowadzono w grupie osób z nabytą niepełnosprawnością ruchową: uszkodzeniem rdzenia kręgowego oraz po amputacji kończyny dolnej. Uzyskane dane wskazują na satysfakcjonującą rzetelność, stabilność i trafność prezentowanego narzędzia.
ZABURZENIA PRAKSJI U DZIECI ZE SPEKTRUM AUTYZMU W ŚWIETLE TEORII INTEGRACJI SENSORYCZNEJ
Authors: Białas-Paluch Katarzyna
Published: June 2017

Artykuł koncentruje się wokół problematyki dyspraksji w spektrum zaburzeń autystycznych. W pierwszej części omówiono pojęcie dyspraksji, która jest różnie definiowana i rozumiana, oraz przedstawiono ją w odniesieniu do obowiązującej taksonomii zaburzeń integracji sensorycznej. W kolejnych  przedstawione zostały zaburzenia przetwarzania sensorycznego, w tym planowania motorycznego u dzieci z ASD, jak również jego sensoryczne podłoże. W końcowej części dokonano przeglądu badań nad praksją w zaburzeniach ze spektrum autyzmu. Analiza literatury wskazuje, że zaburzenia przetwarzania sensorycznego, jak również planowania motorycznego, mogą współwystępować z autyzmem. Głównym celem artykułu jest próba ukazania, w jakim wymiarze teoria integracji sensorycznej bierze udział w wyjaśnianiu przebiegu (zaburzonych) procesów motorycznych u osób z autyzmem.
SKUTECZNE NARZĘDZIE CZY UTRAPIENIE? PRACOWNICY Z WARSZAWSKICH OŚRODKÓW POMOCY SPOŁECZNEJ O ZALETACH I WADACH KONTRAKTU SOCJALNEGO
Authors: Mikołajczyk Marta
Published: June 2017

Artykuł oparty jest na wynikach projektu badawczego finansowanego ze środków własnych „Skuteczne narzędzie czy utrapienie? Kontrakty socjalne w opinii pracowników z warszawskich ośrodków pomocy społecznej”, zrealizowanego w 2015 r. w 16 instytucjach. Przedstawia stanowiska 64 respondentów na temat zalet i wad narzędzia, w tym dostrzeganych efektów i ograniczeń. Zaprezentowane dane mają charakter ilościowy i jakościowy. Z ich analizy wynika, że choć pracownicy dostrzegają szereg mocnych stron kontraktów, uznają je za czasochłonne i wymagające specjalnego przygotowania, np. w zakresie sporządzania diagnozy czy motywowania.
Experimental-numerical test of open
section composite columns stability
subjected to axial compression
Authors: Różyło P.
Published: June 2017

Purpose: The aim of the work was to analyse the critical state of thin-walled composite
profiles with top-hat cross section under axial compression.
Design/methodology/approach: The purpose of the work was achieved by using
known approximation methods in experimental and finite element methods for numerical
simulations. The scope of work included an analysis of the behavior of thin-walled composite
structures in critical state with respect to numerical studies verified experimentally.
Findings: In the presented work were determined the values of critical loads related to the
loss of stability of the structures by using well-known approximation methods and computer
simulations (FEM analysis).
Research limitations/implications: The research presented in the paper is about the
potential possibility of determining the values of critical loads equivalent to loss of stability
of thin-walled composite structures and the future possibility of analyzing limit states related
to loss of load capacity.
Practical implications: The practical approach in the actual application of the described
specimen and methodology of study is related to the necessity of carrying out of strength
analyzes, allowing for a precise assessment of the loads upon which the loss of stability
(bifurcation) occurs.
Originality/value: The originality of the research is closely associated with used the thinwalled
composite profile with top-hat cross-section, which is commonly used in the fuselage
of passenger airplane. The methodology of simultaneous confrontation of the obtained
results of critical loads by using approximation methods and using the linear eigenvalue
solution in numerical analysis demonstrates the originality of the research character.
Presented results and the methodology are intended for researchers, who are concerned
with the topic of loss of stability of thin-walled composite structures.
Comparative Evaluation of Veriflow®Listeria Species to USDA Culture-Based Method for the Detection of Listeria spp. in Food and Environmental Samples
Authors: Joelsson Adam C , Terkhorn Shawn P , Brown Ashley S , Puri Amrita , Pascal Benjamin J , Gaudioso Zara E , Siciliano Nicholas A
Published: June 2017

Veriflow®Listeria species (Veriflow LS) is a molecular-based assay for the presumptive detection of Listeria spp. from environmental surfaces (stainless steel, sealed concrete, plastic, and ceramic tile) and ready-to-eat (RTE) food matrixes (hot dogs and deli meat). The assay utilizes a PCRdetection method coupled with a rapid, visual, flow-based assay that develops in 3 min post-PCR amplification and requires only a 24 h enrichment for maximum sensitivity. The Veriflow LS system eliminates the need for sample purification, gel electrophoresis, or fluorophore-based detection of target amplification and does not require complex data analysis. This Performance Tested MethodSM validation study demonstrated the ability of the Veriflow LS assayto detect low levels of artificially inoculated Listeria spp. in six distinct environmental and food matrixes. In each unpaired reference comparison study, probability of detection analysis indicated that there was no significant difference between the Veriflow LS method and the U.S. Department of Agriculture Food Safety and Inspection Service Microbiology Laboratory Guide Chapter 8.08 reference method. Fifty-one strains of various Listeria spp. were detected in the inclusivity study, and 35 nonspecific organisms went undetected in the exclusivity study. The study results show that the Veriflow LS is a sensitive, selective, and robust assay for the presumptive detection of Listeria spp. sampled from environmental surfaces (stainless steel, sealed concrete, plastic, and ceramic tile) and RTE food matrixes (hot dogs and delimeat).
Lois et normes : les enseignements de l’économie comportementale
Authors: Fluet Claude , Galbiati Roberto
Published: June 2017

Nous discutons de quelques développements récents en économie expérimentale sur la relation entre la loi et les normes sociales dans la détermination des comportements. Dans l’approche traditionnelle de l’analyse économique du droit, l’effectivité des lois repose uniquement sur le système répressif mis en oeuvre pour les faire respecter. De nombreuses expériences de laboratoires montrent cependant que les obligations légales influencent aussi les comportements par un effet sur les anticipations, ce qui permet la coordination sur de « bons équilibres » par le jeu des préférences sociales, ainsi que par un effet direct sur les préférences elles-mêmes. Ces résultats ont des conséquences importantes pour l’analyse économique des politiques légales et réglementaires.
Engagement et incitations : comportements économiques sous serment
Authors: Jacquemet Nicolas , Joule Robert-Vincent , Luchini Stéphane , Malézieux Antoine
Published: June 2017

Sous l’impulsion, notamment, de l’essor de l’économie expérimentale, la littérature récente a mis en évidence un large éventail de situations dans lesquelles les incitations monétaires échouent à orienter les comportements dans le sens désiré. Ce constat conduit à rechercher des mécanismes institutionnels alternatifs, capables de se substituer aux incitations monétaires. Cet article propose une revue des travaux s’inspirant de la psychologie sociale de l’engagement afin de développer des mécanismes non monétaires susceptibles d’affecter les comportements. Ces travaux étudient une procédure d’engagement particulière : un serment à dire la vérité. Cette procédure a été appliquée avec succès (1) au problème du biais hypothétique dans la révélation des préférences pour les biens non marchands, (2) aux défauts de coordination, et (3) à la propension à dire la vérité. Pris ensemble, ces travaux confirment la capacité de mécanismes d’engagement à guider l’élaboration d’institutions non monétaires capables d’orienter efficacement les comportements économiques.
LES DÉTERMINANTS DU TRAVAIL AUTONOME AU QUÉBEC ET AU CANADA (1993-2010)
Authors: FONSECA Raquel , LORD Simon
Published: June 2017

Cet article analyse les déterminants du travail autonome au Québec et dans le reste du Canada en se concentrant sur les contraintes de liquidité, l’âge et le chômage agrégé. Nous utilisons les données en panel de l’Enquête sur la dynamique du travail et du revenu (EDTR) couvrant la période 1993-2010. Les résultats principaux tirés du modèle avec effets aléatoires sont les suivants : l’effet positif des revenus de placement sur la probabilité d’être travailleur autonome confirme la présence de contraintes financières; être plus âgé accroît la probabilité de choisir le travail autonome, suggérant que ce type d’emploi peut être un tremplin vers la retraite; un chômage élevé diminue la probabilité d’être à son compte ce qui suggère que les facteurs de pull dominent sur les facteurs de push.
Going Off, Growing Strong: A program to enhance individual youth and community resilience in the face of change in Nain, Nunatsiavut
Authors: Hirsch Rachel , Furgal Chris , Hackett Christina , Sheldon Tom , Bell Trevor , Angnatok Dorothy , Winters Katie , Pamak Carla
Published: June 2017

Dispossession from social and ecological support systems is a major concern for many Indigenous communities. In response to community health challenges in these settings a number of initiatives such as youth mentorship programs have shown some value in enhancing adaptive capacity. The pilotGoing Off, Growing Strongprogram provides opportunities for at-risk youth to engage in community- and land-based activities and build relationships with positive adult role models in Nain, Nunatsiavut (Labrador, Canada). This paper offers an interpretive description drawing from autobiographical accounts of the development of this innovative program. A collaboratively developed conceptual framework, based on the literature, is used to present and explain program operator’s experiences and rationale for program development. The emergent goals ofGoing Off, Growing Strongare to strengthen individual youth and collective community resilience through intergenerational exchange of land, social, and cultural skills and knowledge by drawing on social supports, such as a community freezer and experienced harvesters. We found that the process of collaborating over time with multiple stakeholders in creating this conceptual framework was an important one for solidifying the goals ofGoing Off, Growing Strongand creating context-specific, meaningful evaluation outcomes to enable future measurement of impacts on the community.
Inuit involvement in developing a participatory action research project on youth, violence prevention, and health promotion
Authors: Morris Marika
Published: June 2017

This article describes the process of developing an academic and community participatory action research partnership on Inuit youth and violence prevention through social media. Pauktuutit Inuit Women of Canada chose the topic, defined the research goals, co-developed the first draft of the project and its methodology, established and chaired an Inuit advisory committee, spearheaded consultations with other Inuit organizations to refine the methodology, and co-facilitated a focus group. The “action” part of the project involved using the research results to develop with Inuit youth an outreach strategy to prevent violence and promote health via social media. The article discusses the research process, which was guided byInuit Qaujimajatuqangit(traditional values) and which used a methodology redesigned by Inuit, including youth and elders. The result was a violence prevention focus group for Inuit aged 18 to 25, co-led by the Mamisarvik Healing Centre, and an online survey of social media use among Inuit aged 18 to 25. This participatory action research process is presented as a potential model for academic-community partnerships.