Search results for "LABOR"
showing 10 items of 3876 documents
Liderazgo femenino y felicidad en el trabajo: el papel mediador del intercambio líder-colaborador
2018
Objetivo: el objetivo de este artículo es examinar el papel del liderazgo femenino en la felicidad en el trabajo de sus colaboradores. Además, se analiza el papel mediador de la relación entre el líder y el colaborador, entendida como el intercambio líder-colaborador (LMX). Método: se ha utilizado la encuesta como método de investigación; se analizaron datos cuantitativos a nivel individual a través de modelos de ecuaciones estructurales. La muestra está compuesta por 292 empleados no directivos del sector hotelero español, para los que se analiza su percepción individual acerca de las variables objeto de estudio. Resultados: los resultados revelan que el liderazgo femenino ejerce un papel …
A Specialized Architecture for Color Image Edge Detection Based on Clifford Algebra
2013
Edge detection of color images is usually performed by applying the traditional techniques for gray-scale images to the three color channels separately. However, human visual perception does not differentiate colors and processes the image as a whole. Recently, new methods have been proposed that treat RGB color triples as vectors and color images as vector fields. In these approaches, edge detection is obtained extending the classical pattern matching and convolution techniques to vector fields. This paper proposes a hardware implementation of an edge detection method for color images that exploits the definition of geometric product of vectors given in the Clifford algebra framework to ex…
Hypervisor memory acquisition for ARM
2021
Abstract Cyber forensics use memory acquisition in advanced forensics and malware analysis. We propose a hypervisor based memory acquisition tool. Our implementation extends the volatility memory forensics framework by reducing the processor's consumption, solves the in-coherency problem in the memory snapshots and mitigates the pressure of the acquisition on the network and the disk. We provide benchmarks and evaluation.
Fast, Reliable Head Tracking Under Varying Illumination
2003
An improved technique for 3D head tracking under varying illumination conditions is proposed. The head is modeled as a texture mapped cylinder. Tracking is formulated as an image registration problem in the cylinder's texture map image. To solve the registration problem in the presence of lighting variation and head motion, the residual error of registration is modeled as a linear combination of texture warping templates and orthogonal illumination templates. Fast and stable on-line tracking is then achieved via regularized weighted least squares minimization of the registration error. The regularization term tends to limit potential ambiguities that arise in the warping and illumination te…
Head Tracking via Robust Registration in Texture Map Images.
1998
A novel method for 3D head tracking in the presence of large head rotations and facial expression changes is described. Tracking is formulated in terms of color image registration in the texture map of a 3D surface model. Model appearance is recursively updated via image mosaicking in the texture map as the head orientation varies. The resulting dynamic texture map provides a stabilized view of the face that can be used as input to many existing 2D techniques for face recognition, facial expressions analysis, lip reading, and eye tracking. Parameters are estimated via a robust minimization procedure; this provides robustness to occlusions, wrinkles, shadows and specular highlights. The syst…
Intersectoral partnerships and competencies for mental health promotion: a Delphi-based qualitative study in Finland.
2021
Summary The importance of intersectoral collaboration and partnership working in mental health promotion, together with the requisite competencies for effective collaboration, is widely acknowledged. This Delphi-based qualitative study examined how intersectoral collaboration and partnership work are constructed and adopted in mental health promotion practice. Descriptive data from a Delphi panel of mental health promotion practitioners working in the health sector (n = 32) were used as a data source. Thematic analysis was used to analyze the data. Applying the theory of collaborative advantage, eight themes of collaboration advantage and the related competencies were identified: management…
Análisis del proceso de internacionalización de la investigación española en ciencia y tecnología (1980-2007)
2012
The process of scientific internationalization in Spain is based on an analysis of the growth of scientific publications and the evolution of international collaboration in Spanish scientific papers indexed in the Science Citation Index-Expanded database between 1980 and 2007. The article examines science policies in Spain together with the investments in economic and human resources devoted to research, and their effects on the internationalization process. Scholarly research in Spain has become increasingly international over the last three decades. The main features of this process have been a linear growth of productivity in terms of the number of papers published per year; a progressiv…
Ligase Chain Reaction (LCR®) assay for semi-quantitative detection of HBV DNA in mononuclear leukocytes of patients with chronic hepatitis B
1996
Summary. A ligase chain reaction (LCR®)-based approach to detect hepatitis B virus (HBV) DNA in peripheral blood mononuclear cells (PBMC) is described. Using this new amplification technique, we determined semi-quantitatively the amount of a short HBV S-gene fragment in PBMC lysates of 25 patients with different forms of chronic hepatitis (group A (n= 8), hepatitis B s antigen (HBsAg)+/hepatitis B e antigen (HBeAg)+; group B (n= 9), HBsAg+/HBeAg-; group C (n= 8), HBsAg-/HBeAg-). The LCR results were compared with the findings obtained with polymerase chain reaction (PCR) amplification of three distinct HBV gene regions (preS1/2, S and C) and related to the serological profiles of the patien…
Immunohistochemical Study as a Tool in Differential Diagnosis of Pediatric Malignant Rhabdoid Tumor
2010
Malignant rhabdoid tumors (MRTs) are aggressive childhood neoplasms, occurring mainly in the kidney and brain. We describe 2 unusual cases of extrarenal and noncranial location (liver and soft tissue with dissemination) mimicking hepatoblastoma, neuroblastoma or Ewing sarcoma. Both cases revealed a polyphenotypic profile, combined with cytokeratin, vimentin, and CD99 expression. INI1/BAF-47 showed negative protein nuclear expression in both cases, suggesting a diagnosis of MRT. An extensive immunohistochemical panel was performed to exclude pediatric tumors reminiscent of MRT. The genetic studies failed to detected MYCN amplification, 11q23 deletion, and EWS break-apart positivity. No alter…
Mutual learning: exploring collaboration, knowledge and roles in the development of recovery-oriented services. A hermeneutic-phenomenological study
2021
ABSTRACT Purpose The concept of recovery is commonly described as multifaceted and contested in the field of mental health and substance abuse. The aim of this study is to explore how understandings of recovery and recovery orientation of services are developed through daily practices and collaboration between service users and professionals. Methods Eight pairs of participants were interviewed together, in accordance with the dyadic interview method. The dyads/pairs consisted of service users and professional helpers. A collaborative hermeneutic-phenomenological analysis was used to analyse data. Results Data were analysed into three overarching and entangled themes, exploring how recovery…