oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

4 ( 1 )

2020 ( 1 )

2019 ( 132 )

2018 ( 209 )

Custom range...

Search Results: 1 - 10 of 82236 matches for " Marina Silva da Cunha "
All listed articles are free for downloading (OA Articles)
Page 1 /82236
Display every page Item
Os empregados da agricultura brasileira: diferenciais e determinantes salariais
Cunha, Marina Silva da;
Revista de Economia e Sociologia Rural , 2008, DOI: 10.1590/S0103-20032008000300002
Abstract: this work studies the wage differentials and determinants of the employees in brazilian agriculture, in period 1981-2005, on the basis of the information of the national research for sample of domiciles of the ibge. the methodology of heckman is used to correct bias of selection, common in wage equations gotten by least ordinary square, besides the decomposition of oaxaca-blinder, to analyze the wage differentials between 1981 and 2005. between wage determinants, had been analyzed: education, experience, region, weekly working time and formal work, besides some macroeconomic determinants. the results of the work suggest a reduction of the wage differentials, mainly in the end of the studied period, and that the variable education, age and formal work had contributed to reduce the wage differentials between 1981 and 2005; and on the other hand, the variable geographic region and weekly working time, had contributed to increase them. moreover, the macroeconomic variables included in the analysis were statistical significant in the explanation of the agricultural differentials.
TRANSFORMA ES RECENTES NO MERCADO DE TRABALHO PARANAENSE
Marina Silva da Cunha
Revista Paranaense de Desenvolvimento , 2008,
Abstract: Português Este artigo tem como objetivo analisar as mudan as no mercado de trabalho do Estado doParaná, com base nas informa es da Pesquisa Nacional por Amostra de Domicílios (PNAD)do IBGE, para o período de 1992 a 2006. Os resultados do trabalho apontam um crescimentoda popula o economicamente ativa acima do aumento da popula o total e da popula oem idade ativa, indicando, consequentemente, um aumento da oferta de trabalho. Apesar daredu o do desemprego na década atual, este caiu nas áreas urbanas e aumentou nas áreasrurais no período estudado, sugerindo a necessidade de maior aten o das políticas públicaspara os problemas sociais nessas localidades. Por fim, verifica-se um aumento dos postos detrabalho na indústria e no comércio e servi os, enquanto a agricultura vem perdendo postos,especialmente nas regi es n o-metropolitanas.English The objective of this work is to analyze the changes in the labor market of the State of Paraná,based on data provided by the National Sample Household Survey (PNAD), from IBGE, forthe period 1992-2006. The results of the study point towards an increase in the economicallyactive population, higher than the increase in total population and active age population.Consequently, suggest an increase of the labor supply. Despite of the unemployment decreasein the present decade, the rate fell in urban areas and increased in rural areas during theexamined period, suggesting the need for closer attention on public policies in these localities.Finally, the work indicates an increase in job openings in industry, commerce and servicesfields during the period, and a decrease in agricultural-related labor force occupation, particularlyin non-metropolitan areas.
Evolu??o da desigualdade na distribui??o dos salários no Brasil
Cunha, Marina Silva da;Vasconcelos, Marcos Roberto;
Economia Aplicada , 2012, DOI: 10.1590/S1413-80502012000100005
Abstract: the objective of this work is to investigate the evolution of the inequality in the wage distribution in the brazilian labor market. the decomposition of that inequality indicated that the educational heterogeneity explains significant part of the total inequality, and the reduction of the differences on wages among the educational levels was one of the main explanations for the fall of the inequality in the distribution of wages. on the other hand, the amplification of the formal labor market has been contributing to increase the salary inequality. finally, although fall is verified in the dispersion of the wages among the observed factors, the evidences point increase in the portion attributed to the non observed components.
Valores-trabalho e pre?os de produ??o em sistemas econ?micos sraffianos com terra homogênea
Hoffmann, Rodolfo;Cunha, Marina Silva da;
Revista Brasileira de Economia , 2001, DOI: 10.1590/S0034-71402001000100003
Abstract: this paper analyses the determination of labour values and surplus-value in a sraffian-marxist economic model with homogenous and scarce land. the determination of production prices, profit rate and land rent is also analysed. one of the conclusions is that positive surplus value is not a sufficient condition for positive profits.
Caracteriza o da agropecuária paranaense na década de 90
Marina Silva da Cunha,Claudia Aparecida Toniato Chilante
Revista Paranaense de Desenvolvimento , 2001,
Abstract: Este trabalho tem como objetivo realizar uma caracteriza o da agropecuária do Estado do Paraná, com base no Censo Agropecuário do IBGE de 1995/96. Para tanto, foram selecionados indicadores da estrutura fundiária, da capitaliza o e utiliza o de insumos, do uso da terra, da condi o do produtor e pessoal ocupado, relacionados por meio das análises fatorial e cluster. Esse instrumento de análise multivariada permite obter uma regionaliza o da estrutura agropecuária, detectando as similaridades entre os municípios definidos no Censo. Os resultados apontam para a existência de oito regi es homogêneas no Estado, n o necessariamente contínuas. The purpose of this paper is to make a picture of the agriculture and cattle breeding sectors in the state of Parana, based on data from the Agricultural Census (IBGE, 1995/96). To do so, we selected some variables (like land property structure, captalization and use of inputs, use of land, producer and hired conditions) and linked them by using factor and cluster analysis. This method of multivariate analysis allows getting a regionalization of the farming structure, showing similarities among the cities included in the Census. The results point out the existence of eight homogeneous regions in the state that are not necessarily continuous.
Agricultural modernization dynamics in the North of Paraná, 1970-95 Dinamica da moderniza o agropecuária no norte paranaense, 1970-85
Marina Silva da Cunha,Mauro Eduardo Del Grossi
Semina : Ciências Sociais e Humanas , 1993, DOI: 10.5433/
Abstract: This study analyses the dynamics of the agricultural modernization in the north of Paraná from 1970 to 1985. Thirty parameters of the modernization were selected, such as: land tenure distribution, use of the land and changes of products, use of technology and capitalization, conditions of the hired labor participation, connected with methods of multivariate analyses. The basic data were obtained from de Agricultural Census (IBGE) in the following years: 1970, 1980 and1985. The results evidence different regions with different degrees of modernization and the way this modernization is carried out among several groups of municipality. In general terms the modernization contributed to change the perennial crops for the annual ones, the pasture, the increase in the inequality of the land tenure distribution, and the growth of the hired labor participation. Este trabalho analisa a dinamica da moderniza o agropecuária do norte paranaense no período de 1970 à 1985. Para tanto foram selecionados trinta indicadores da moderniza o relacionados com: concentra o no acesso à terra, uso da terra e mudan as na pauta de produtos, uso de tecnologia e capitaliza o, e condi o da m o-de-obra; e relacionadas através de métodos de análise multivariada. A fonte de dados constituiu-se basicamente nos Censos Agropecuários do IBGE, dos anos de 1970, 1980 e 1985. Os resultados evidenciam que há nítidas diferen as internas quanto ao grau de incorpora o do processo de moderniza o, ou mesmo da maneira como se expressa essa moderniza o, nos vários grupos de municípios. De maneira geral, a moderniza o no norte paranaense levou à substitui o das lavouras permanentes pelas temporárias, pastagens e a aumentos da concentra o fundiária e da m o-de-obra assalariada.
Multigene Molecular Systematics Confirm Species Status of Morphologically Convergent Pagurus Hermit Crabs
Joana Matzen da Silva,Antonina dos Santos,Marina R. Cunha,Filipe O. Costa,Simon Creer,Gary R. Carvalho
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0028233
Abstract: In spite of contemporary morphological taxonomy appraisals, apparent high morphological similarity raises uncertainty about the species status of certain Pagurus hermit crabs. This is exemplified between two European species, Pagurus excavatus (Herbst, 1791) and Pagurus alatus (Fabricius 1775), whose species status is still difficult to resolve using morphological criteria alone.
Polimorfismos genéticos do fator de crescimento do endotélio vascular na pré-eclampsia
Cunha, Valquiria Maria de Paula;Grecco, Roseane Lopes da Silva;Paschoini, Marina Carvalho;Silva, Sueli Riul da;Ruiz, Mariangela Torreglosa;Balarin, Marly Aparecida Spadotto;
Revista Brasileira de Ginecologia e Obstetrícia , 2011, DOI: 10.1590/S0100-72032011000700007
Abstract: purpose: to identify genetic polymorphisms of endothelial growth factor (vegf), positions +936c/t and -2578c/a, in women with pre-eclampsia. methods: this was a cross-sectional study conducted on 80 women divided into two groups: pre-eclampsia and control. the sample was characterized using a pre-structured interview and data transcribed from the medical records. dna extraction, amplification of sequences by the polymerase chain reaction (pcr) with specific primers and polymorphism analysis of restriction fragment length polymorphism (rflp) were performed to identify polymorphisms. the statistical analysis was performedin a descriptive manner and using the test. the multiple logistic regression model was used to determine the effect of polymorphisms on pre-eclampsia. results:ahigher frequency of the t allele of thevegf +936c/t polymorphism was observedin patients with pre-eclampsia, but with no significant difference. the presence of allele a of the vegf -2578c/a was significantly higher in the control group. conclusions:no significant association was observed between vegf +936c/tpolymorphism andpre-eclampsia. for the vegf -2578c/a polymorphism a significant differencewas observed between thecontrol and pre-eclampsia group, with allele a being the most frequent in the control, suggesting the possibility that carriers of allele a have lower susceptibility to the development of pre-eclampsia.
Systematic and Evolutionary Insights Derived from mtDNA COI Barcode Diversity in the Decapoda (Crustacea: Malacostraca)
Joana Matzen da Silva,Simon Creer,Antonina dos Santos,Ana C. Costa,Marina R. Cunha,Filipe O. Costa,Gary R. Carvalho
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0019449
Abstract: Decapods are the most recognizable of all crustaceans and comprise a dominant group of benthic invertebrates of the continental shelf and slope, including many species of economic importance. Of the 17635 morphologically described Decapoda species, only 5.4% are represented by COI barcode region sequences. It therefore remains a challenge to compile regional databases that identify and analyse the extent and patterns of decapod diversity throughout the world.
Isolados 'como nós' ou isolados 'entre nós'?: a polêmica na Academia Nacional de Medicina sobre o isolamento compulsório dos doentes de lepra
Cunha, Vivian da Silva;
História, Ciências, Saúde-Manguinhos , 2010, DOI: 10.1590/S0104-59702010000400006
Abstract: given brazilian society's view of leprosy in the early twentieth century, patient segregation was considered the only way to protect the healthy. the policy enforced by the inspectorship for the prevention of leprosy and venereal diseases deemed isolation in leprosaria the preferred approach. belisário penna criticized the work of the inspectorship, arguing that the best way to isolate patients would be to create municipalities located a good distance from urban centers. in 1926, penna came head to head over the subject with eduardo rabello, the inspectorship's former chief. part of a broader debate on the best way to control leprosy, this controversy sheds light on the changes to leprosy policies introduced in the 1930s.
Page 1 /82236
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.