Search results for "K-L"
showing 10 items of 76 documents
Interventions for improving psychological detachment from work: A meta-analysis.
2021
Psychological detachment from work during off-job time is crucial to sustaining employee health and well-being. However, this can be difficult to achieve, particularly when job stress is high and recovery is most needed. Boosting detachment from work is therefore of interest to many employees and organizations, and over the last decade numerous interventions have been developed and evaluated. The aim of this meta-analysis was to review and statistically synthesize the state of research on interventions designed to improve detachment both at work and outside of it. After a systematic search (covering the period 1998-2020) of the published and unpublished literature, 30 studies with 34 interv…
Linear and cyclic radio k-labelings of trees
2007
International audience; Motivated by problems in radio channel assignments, we consider radio k-labelings of graphs. For a connected graph G and an integer k ≥ 1, a linear radio k-labeling of G is an assignment f of nonnegative integers to the vertices of G such that |f(x)−f(y)| ≥ k+1−dG(x,y), for any two distinct vertices x and y, where dG(x,y) is the distance between x and y in G. A cyclic k-labeling of G is defined analogously by using the cyclic metric on the labels. In both cases, we are interested in minimizing the span of the labeling. The linear (cyclic, respectively) radio k-labeling number of G is the minimum span of a linear (cyclic, respectively) radio k-labeling of G. In this p…
Boundary communication: how smartphone use after hours is associated with work-life conflict and organizational identification
2020
This study investigates how boundary communication mediates the effects of smartphone use for work after hours on work-life conflict and organizational identification. It draws upon boundary theory, work-family border theory, and a structurational view of organizational identification. The research site was a large Scandinavian company operating in the telecommunications industry, with 367 employees responding to a survey at two time periods. In contrast to many studies, the use of information and communication technologies (here, smartphones) for after-hours work was not associated with work-life conflict, but was positively associated with organizational identification. However, communica…
Latvijas Vēstures Institūta Žurnāls. 2021, Nr. 2 (114)
2021
LU Latvijas vēstures institūta LU ilgtermiņu saistību iepildei 2020.-2022. g. ("Latvijas Vēstures Institūta Žurnāls")
Sistema RANK/RANK-L en el cáncer de endometrio: relación con factores pronósticos
2017
RESUMEN TESIS DOCTORAL ANA CASTRO PÉREZ SISTEMA RANK/RANK-L EN EL CÁNCER DE ENDOMETRIO: RELACIÓN CON FACTORES PRONÓSTICOS Las proteínas de Sistema RANK/RANK-L pertenecen a la superfamilia de los factores de necrosis tisular (TNF). Entre ellas ese encuentran RANK, RANK-L y OPG (receptor activator of nuclear factor- kB, receptor activator of nuclear factor-kB ligand y osteoprotegerina respectivamente). Son proteínas involucradas en múltiples procesos como: fenómenos de resorción ósea, el sistema inmune y la inflamación crónica, la proliferación y desarrollo mamarios, tumores mamarios y la aparición de metástasis óseas distintos tumores. Existen varios trabajos que estudian la expresión de las…
Check-list of Italian Birds, updated to the end of 2014
2015
We provide a check-list of Italian birds with major emphasis on the phenological categorization of each taxon, following the approach and updating the results of an analogous list previously published (Brichetti & Massa, 1998). In this list we based on the IOC World Bird List (Gill & Donsker, 2015) for nomenclature, species sequence and higher level taxonomy (from genus to order). This compilation takes into account the decisions made by the Italian Ornithological Commission (COI) and includes 548 species, recorded in Italy until the end of 2014.
Genetic Algorithm Optimized Grid-based RF Fingerprint Positioning in Heterogeneous Small Cell Networks
2015
In this paper we propose a novel optimization algorithm for grid-based RF fingerprinting to improve user equipment (UE) positioning accuracy. For this purpose we have used Multi-objective Genetic Algorithm (MOGA) which enables autonomous calibration of gridcell layout (GCL) for better UE positioning as compared to that of the conventional fingerprinting approach. Performance evaluations were carried out using two different training data-sets consisting of Minimization of Drive Testing measurements obtained from a dynamic system simulation in a heterogeneous LTE small cell environment. The robustness of the proposed method has been tested analyzing positioning results from two different area…
Reduced reference 3D mesh quality assessment based on statistical models
2015
International audience; During their geometry processing and transmission 3D meshes are subject to various visual processing operations like compression, watermarking, remeshing, noise addition and so forth. In this context it is indispensable to evaluate the quality of the distorted mesh, we talk here about the mesh visual quality (MVQ) assessment. Several works have tried to evaluate the MVQ using simple geometric measures, However this metrics do not correlate well with the subjective score since they fail to reflect the perceived quality. In this paper we propose a new objective metric to evaluate the visual quality between a mesh with a perfect quality called reference mesh and its dis…
Gli Ortotteri di Sicilia: check-list commentata.
2011
Biogeographia I./qO'I.A)O'O( - 2011 (Pubblicato il 23 dicembre 2011) La Biogeografia della Sicilia Gli Ortotteri di Sicilia: check—list commentata BRUNO MASSA Dipartimerzto DEMETRA (Sezione Entomologizz, Acarologia, Zoologia) Ea’. 4, Vle della Scienze, 90128 Palermo e—maz'[: brzmo. mam: @um'pzz. it Key words: grasshoppers, annotated check-list, endemisms, species richness, Sicily SUMMARY The author analyses all the bibliographic references on Sicilian Orthoptera and many unpublished data, with which he carries out an annotated check—list of species so Far known in the island. On the whole, 127 species of Or- thoptera are currently known in Sicily (including small islands surr…
Radio Labelings of Distance Graphs
2013
A radio $k$-labeling of a connected graph $G$ is an assignment $c$ of non negative integers to the vertices of $G$ such that $$|c(x) - c(y)| \geq k+1 - d(x,y),$$ for any two vertices $x$ and $y$, $x\ne y$, where $d(x,y)$ is the distance between $x$ and $y$ in $G$. In this paper, we study radio labelings of distance graphs, i.e., graphs with the set $\Z$ of integers as vertex set and in which two distinct vertices $i, j \in \Z$ are adjacent if and only if $|i - j| \in D$.