Search results for "LABOR"
showing 10 items of 3876 documents
Recurrent intraoral HSV-1 infection : a retrospective study of 58 immunocompetent patients from Eastern Europe
2010
Objectives. To revise the clinical features of the recurrent intraoral herpetic infection (RIOH) with respect to precipitating factors, demographic, clinical features and outcome. Study design. Fifty-eight, unrelated Caucasian, immunocompetent patients with positive laboratory test for intraoral Herpes simplex virus infection were studied. Results. The mean age in the women?s group (n=42) was 41.23 years (± 21.73) and in the men?s group was 32.25 years (± 15.68). Possible trigger factors were identified in 9 cases (15.5%). General symptoms were noted in 20 cases (34.48%). Most of patients in this study presented multiple lesions. 14 patients had vermillion lesions associated with intraoral …
Experimental Sentinel-2 LAI estimation using parametric, non-parametric and physical retrieval methods – A comparison
2015
Abstract Given the forthcoming availability of Sentinel-2 (S2) images, this paper provides a systematic comparison of retrieval accuracy and processing speed of a multitude of parametric, non-parametric and physically-based retrieval methods using simulated S2 data. An experimental field dataset (SPARC), collected at the agricultural site of Barrax (Spain), was used to evaluate different retrieval methods on their ability to estimate leaf area index (LAI). With regard to parametric methods, all possible band combinations for several two-band and three-band index formulations and a linear regression fitting function have been evaluated. From a set of over ten thousand indices evaluated, the …
Estimating the Best Reference Homography for Planar Mosaics From Videos
2015
This paper proposes a novel strategy to find the best reference homography in mosaics from video sequences. The reference homography globally minimizes the distortions induced on each image frame by the mosaic homography itself. This method is designed for planar mosaics on which a bad choice of the first reference image frame can lead to severe distortions after concatenating several successive homographies. This often happens in the case of underwater mosaics with non-flat seabed and no georeferential information available. Given a video sequence of an almost planar surface, sub-mosaics with low distortions of temporally close image frames are computed and successively merged according to…
Implications for dark matter direct detection in the presence of LIGO-motivated primordial black holes
2019
We discuss formation of dark matter (DM) mini-halos around primordial black holes (PBHs) and its implication on DM direct detection experiments, including axion searches. Motivated by LIGO observations, we consider $f_{\textrm{DM}} \simeq 0.01$ as the fraction of DM in PBHs with masses $10 M_{\odot} - 70 M_{\odot}$. In this case, we expect the presence of dressed PBHs after Milky Way halo formation with mini-halo masses peaked around $M_{\textrm{halo}} \sim (50-55) M_{\textrm{PBH}}$. We analyze the effect of tidal forces acting on dressed PBHs within the Milky Way galaxy. In the solar neighborhood, the mini-halos are resistant against tidal disruption from the mean-field potential of the ga…
Constraints on Cosmic Strings Using Data from the Third Advanced LIGO–Virgo Observing Run
2021
We search for gravitational-wave signals produced by cosmic strings in the Advanced LIGO and Virgo full O3 data set. Search results are presented for gravitational waves produced by cosmic string loop features such as cusps, kinks and, for the first time, kink-kink collisions.cA template-based search for short-duration transient signals does not yield a detection. We also use the stochastic gravitational-wave background energy density upper limits derived from the O3 data to constrain the cosmic string tension, $G\mu$, as a function of the number of kinks, or the number of cusps, for two cosmic string loop distribution models.cAdditionally, we develop and test a third model which interpolat…
Expansión de la temporalidad y erosión de la relación de empleo estándar en España: ¿La irrupción de un nuevo paradigma de relación de empleo?
2018
Desde la década de los ochenta el mercado de trabajo español ha venido caracterizado por la persistencia de unas tasas muy altas de temporalidad hasta convertirse este en un problema crónico de la sociedad española, que, además, no ha tenido -en cuanto a magnitud- parangón en el resto de países de la UE. Las diferentes fórmulas de contratación temporal creadas e incentivadas por la vía normativa en un proceso de “reforma laboral permanente” se han convertido, en conjunción con otros factores entre los que destaca la utilización empresarial de los contratos temporales en el límite de la legislación, cuando no en claro fraude de ley, en una efectiva vía para la segmentación laboral y una clar…
Renovación metodológica de teorías de la comunicación ante el EEES
2012
La implantación del Espacio Europeo de Educación Superior, impulsado en 1999, ha transformado la oferta de títulos de las universidades españolas durante los últimos años. Sin embargo, el nuevo catálogo de grados también debe ir acompañado de una actualización de las estrategias docentes. La renovación metodológica de las materias de carácter más teórico supone un reto que es necesario afrontar con la incorporación de propuestas de aprendizaje colaborativo y con el uso de nuevas tecnologías. En este artículo se analiza el diseño, la aplicación y los resultados que dio el desarrollo de la asignatura de Teorías de la Comunicación según un modelo orientado al aprendizaje de los estudiantes, co…
Análisis de un modelo de tutorización de TFG en el Espacio Europeo de Educación Superior: una aplicación en el Grado de Relaciones Laborales y Recurs…
2016
The aim of this research paper is to present a new tutoring model for the Final Degree Project (FDP ), related to the university reform process. The experimentation process of this model was carried out in the Degree of Labour Relations and Human Resources at the University of Valencia.The consistency of the supporting process offered by the professor to the student, and the main innovations introduced in higher education by the convergence of "Bologna Process" will be analysed.The two main points of the new educational scenario, that is to say the change in the teacher's role and their relationship with the student are both taken into account in the model design. Furthermore, the pillars o…
Sharing Perspectives in Virtual Interaction: Review of Methods of Analysis
2003
The aim of this paper is to describe the methodological solutions made in the studies that are part of the SHAPE research project. The SHAPE project investigates the quality and nature of virtual interaction in a higher education context. The study aims to find out variables that mediate the process of collaboration, particularly the emerging processes of sharing and constructing perspectives in virtual interaction. For conducting these studies we have developed various methods and models of analysis in order to gain better understanding of the process of collaboration in virtual interaction. In this paper, we will make a review of some of the SHAPE analysis methods used in the series of ou…
Scripted Collaboration and Group‐Based Variations in a Higher Education CSCL Context
2009
Scripting student activities is one way to make Computer‐Supported Collaborative Learning more efficient. This case study examines how scripting guided student group activities and also how different groups interpreted the script; what kinds of roles students adopted and what kinds of differences there were between the groups in terms of their activities. Seven small groups of higher education students participated in the study. According to the findings, scripting enhanced collaboration and ensured that all groups were able to complete the task, but despite the script the groups' activities varied during the task and the script could not guarantee any “high‐level” participation by all stud…