29 research outputs found
Compromiso organizacional y satisfacción laboral: un estudio exploratorio en unidades de salud familiar portuguesas
Explorou-se a relação entre compromisso organizacional e satisfação laboral
nos colaboradores de unidades de saúde familiar. Participaram seis unidades
de saúde familiar do norte de Portugal e 105 profissionais (médico, enfermeiros
e secretários clÃnicos). Utilizaram-se as adaptações portuguesas da Escala
do Compromisso Organizacional de Meyer & Allen (1997) e do Questionário
de Satisfação com o Trabalho (Spector, 1985). Os resultados sugerem
associação positiva entre compromisso organizacional e satisfação laboral. Os
profissionais estão moderadamente satisfeitos e comprometidos com as unidades
de saúde familiar, sendo a natureza do trabalho, a relação com os colegas e
a comunicação os aspectos mais satisfatórios, e as recompensas o mais insatisfatório.
A componente afetiva do compromisso evidencia-se, salientando o envolvimento
e a identificação dos profissionais com o projeto unidades de saúde
familiar. O modelo de regressão linear revelou-se significativo, o compromisso
organizacional explica 22,7% da variância da satisfação com o trabalho.
Para esta amostra, o compromisso organizacional prediz a satisfação com
o trabalho.This study explored the relationship between organizational commitment and job satisfaction among workers in family health units. Six family health units in the North of Portugal participated, including 105 health professionals (physicians, nurses, and clinical secretaries). The study used the Portuguese adaptations of the Organizational Commitment Scale by Meyer & Allen (1997) and the Job Satisfaction Survey (Spector, 1985). The results suggest a positive association between organizational commitment and job satisfaction. The professionals are moderately satisfied and committed to the family health units; the most satisfactory aspects are the nature of the work, relationship to coworkers, and communication, while pay is the most unsatisfactory. The affective component of the commitment appears, highlighting the professionals' involvement in (and identification with) the family health units project. The linear regression model proved significant, and organizational commitment explains 22.7% of the variance in job satisfaction. For this sample, organizational commitment predicts job satisfaction.Instituto Nacional de Saúde Dr Ricardo Jorgeinfo:eu-repo/semantics/publishedVersio
Qualidade de vida de estudantes de medicina da UERJ por meio do Whoqol-bref: uma abordagem multivariada
Spatial distribution of Schistosoma mansoni infection before and after chemotherapy with two praziquantel doses in a community of Pernambuco, Brazil
Interplay of ribosomal DNA Loci in nucleolar dominance: dominant NORs are up-regulated by chromatin dynamics in the wheat-rye system
Background: Chromatin organizational and topological plasticity, and its functions in gene expression regulation, have
been strongly revealed by the analysis of nucleolar dominance in hybrids and polyploids where one parental set of
ribosomal RNA (rDNA) genes that are clustered in nucleolar organizing regions (NORs), is rendered silent by epigenetic
pathways and heterochromatization. However, information on the behaviour of dominant NORs is very sparse and needed
for an integrative knowledge of differential gene transcription levels and chromatin specific domain interactions.
Methodology/Principal Findings: Using molecular and cytological approaches in a wheat-rye addition line (wheat genome
plus the rye nucleolar chromosome pair 1R), we investigated transcriptional activity and chromatin topology of the wheat
dominant NORs in a nucleolar dominance situation. Herein we report dominant NORs up-regulation in the addition line
through quantitative real-time PCR and silver-staining technique. Accompanying this modification in wheat rDNA
trascription level, we also disclose that perinucleolar knobs of ribosomal chromatin are almost transcriptionally silent due to
the residual detection of BrUTP incorporation in these domains, contrary to the marked labelling of intranucleolar
condensed rDNA. Further, by comparative confocal analysis of nuclei probed to wheat and rye NORs, we found that in the
wheat-rye addition line there is a significant decrease in the number of wheat-origin perinucleolar rDNA knobs,
corresponding to a diminution of the rDNA heterochromatic fraction of the dominant (wheat) NORs.
Conclusions/Significance: We demonstrate that inter-specific interactions leading to wheat-origin NOR dominance results not
only on the silencing of rye origin NOR loci, but dominant NORs are alsomodified in their transcriptional activity and interphase
organization. The results show a cross-talk between wheat and rye NORs, mediated by ribosomal chromatin dynamics,
revealing a conceptual shift from differential amphiplasty to ‘mutual amphiplasty’ in the nucleolar dominance process.This work was supported by the Fundação para a Ciência e Tecnologia (projects POCI/BIA-BDE/57575/2004 to M.S. and POCI/BIA-BCM/59389/2004 to N.N.
An approach to the immunophenotypic features of circulating CD4+NKG2D+ T cells in invasive cervical carcinoma
Global assessment of marine plastic exposure risk for oceanic birds
Plastic pollution is distributed patchily around the world’s oceans. Likewise, marine organisms that are vulnerable to plastic ingestion or entanglement have uneven distributions. Understanding where wildlife encounters plastic is crucial for targeting research and mitigation. Oceanic seabirds, particularly petrels, frequently ingest plastic, are highly threatened, and cover vast distances during foraging and migration. However, the spatial overlap between petrels and plastics is poorly understood. Here we combine marine plastic density estimates with individual movement data for 7137 birds of 77 petrel species to estimate relative exposure risk. We identify high exposure risk areas in the Mediterranean and Black seas, and the northeast Pacific, northwest Pacific, South Atlantic and southwest Indian oceans. Plastic exposure risk varies greatly among species and populations, and between breeding and non-breeding seasons. Exposure risk is disproportionately high for Threatened species. Outside the Mediterranean and Black seas, exposure risk is highest in the high seas and Exclusive Economic Zones (EEZs) of the USA, Japan, and the UK. Birds generally had higher plastic exposure risk outside the EEZ of the country where they breed. We identify conservation and research priorities, and highlight that international collaboration is key to addressing the impacts of marine plastic on wide-ranging species