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Search Results: 1 - 10 of 181246 matches for " Samuel de Abreu;Veloso "
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Evolu??o da produtividade total dos fatores na economia brasileira com ênfase no capital humano - 1992-2007
Barbosa Filho, Fernando de Holanda;Pess?a, Samuel de Abreu;Veloso, Fernando A.;
Revista Brasileira de Economia , 2010, DOI: 10.1590/S0034-71402010000200002
Abstract: this paper investigates the evolution of total factor productivity (tfp) for the brazilian economy between 1992 and 2007, using a measure of human capital based on microeconomic data. one of the main contributions of this paper is to construct a specific measure of human capital that allows one to quantify both the evolution of the participation of the different levels of education and experience of the labor force in total hours worked and the variation of its productivity over time. the results show that tfp increased only 11.3% between 1992 and 2007 and accounted for about 22.9% of the growth rate of gdp in the period. another important result is that the human capital of the labor force in brazil was almost stationary during the period. this was due to the fact that the increase in the participation component of the labor force was compensated by the reduction in the productivity component. finally, it is shown that the increase in the supply of more educated workers explains the decline in human capital compensation. in particular, the lack of a better educated labor force does not appear to have imposed a restriction to economic growth, since its supply increased faster than the demand.
A carreira de professor estadual no Brasil: os casos de S o Paulo e Rio Grande do Sul State school teacher career in Brazil: the cases of S o Paulo and Rio Grande do Sul
Fernando de Holanda Barbosa Filho,Samuel de abreu pess?a
Revista de Administra??o Pública , 2011, DOI: 10.1590/s0034-76122011000400004
Abstract: O presente artigo, com base nas folhas de pagamentos dos professores das redes públicas estaduais do Rio Grande do Sul (RS) e de S o Paulo (SP), mostra que a remunera o dos professores das redes públicas destes estados n o está relacionada com o desempenho dos professores, sendo o tempo de servi o o fator determinante na evolu o da remunera o. O salário relativo médio de um professor da rede dos estados do Rio Grande do Sul e de S o Paulo, como fra o do PIB, é superior ao encontrado em outros países que s o considerados exemplos de bom desempenho escolar. Ou seja, n o há evidência de que o salário nestas redes esteja fora da nor-ma tomando como compara o os países da OECD. O artigo mostra, ainda, que o salário médio pago aos professores da ativa é inferior ao benefício médio concedido aos inativos e que estes apresentam um elevado custo na folha de pagamentos dos estados, superior aos 50% no Rio Grande do Sul e 35% em S o Paulo. Mais, as regras para aposentadoria dos professores no Brasil s o extremamente generosas quando comparadas com outros países do mundo. O artigo finaliza documentando a forte compress o salarial existente no magistério em compara o ao observado no mercado de trabalho gaúcho e paulista para os profissionais com curso superior. This paper establishes some stylized facts about the public educational system of two Brazilian states: Rio Grande do Sul (RS) and S o Paulo (SP). First, this paper shows that teachers' wages are not related with their productivity because wages are mainly affected by tenure. Second, teachers' average wage as fraction of GDP is higher than the one paid in other countries considered example of educational achievements, i.e., there is no evidence that the wages paid in Rio Grande do Sul and S o Paulo underpay its teachers, comparing with OCDE countries. Third, the average wage paid to teachers is inferior than the average benefit paid to retired teachers, and retirees represent a heavy burden on this states wage bill, above 50% at Rio Grande do Sul and 35% at S o Paulo. Moreover, the paper shows this states retirement rules are extremely generous comparing with other countries. Fourth, the public teachers' wage compression is stronger than the one observed in the job market for workers' with a college degree in both states.
Redesenhando o Mapa Eleitoral do Brasil: uma proposta de reforma política incremental
Amorim Neto, Octavio;Cortez, Bruno Freitas;Pessoa, Samuel de Abreu;
Opini?o Pública , 2011, DOI: 10.1590/S0104-62762011000100002
Abstract: this article presents a proposal for an incremental reform of the electoral system of the chamber of deputies. the incremental nature of the proposal rests on the assumption that this political system is a complex and delicate architecture, and therefore, abrupt and ambitious changes are more likely to make it worse than to improve it. the proposal advocated here maintains the current system of open-list proportional representation, but it changes two key variables of this electoral system, since it reduces its average district magnitude and establishes a proportional distribution of seats among parties that form electoral coalitions. the way the reform is operationalized leads to a redesign of the electoral map of the country, with smaller districts within 12 states. the article also presents the results of a simulation exercise based on data from the 2006 elections, whereby the party makeup of the chamber of deputies is recalculated according to the rules proposed here.
An Investigation of Cross-Country Income Differences
Pedro Cavalcanti Ferreira,Joao Victor Issler,Samuel de Abreu Pessoa
Revista de Análisis Económico (RAE) , 2005,
Abstract: This paper investigates the nature of income inequality across nations. Several exercises, such as variance decompositions, simulations and counter-factual analyses are performed. We find that, although total factor productivity has a leading role in explaining the dispersion of output per worker, countries grew in the past –and, consequently, are poor in the present– for different reasons. Even after correcting for productivity differences, some nations remain poor mostly because of low schooling of the labor force and other because they impose too many distortions to capital accumulation. Policy recommendations have to take country differences into account, or else they have a high chance of being either wrong or ineffective.
Germination of Seeds of Interspecific Hybrid Caiaué × Oil Palm Submitted to the Mechanical Depulping  [PDF]
Thaís Moura Maquiné, Alex Queiroz Cysne, Wanderlei Ant?nio Alves de Lima, Samuel Campos Abreu, Márcia Green, Sara de Almeida Rios
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.520313
Abstract: Oil palm seeds respond well to protocols of dormancy break, however, the seeds of interspecific hybrid (HIE) (caiaué × oil palm) have lower germination rates. The mechanical depulping can affect the potential of germination of seeds, therefore the objective of this study was to evaluate the mechanical depulping on the seed germination, vigor and viability of embryos HIE BRS Manicoré. A randomized block design with five treatments, based on the depulping time and on the percentage of mesocarp on the seed with four replications was used. The percentage of seed germination, the germination speed index (GSI), the percentage of fungi and abnormal seeds and vigor and viability of embryos were evaluated. There was no statistical difference (p < 0.05) between treatments for all variables. The average of germination at 35 days was 45.34% and embryos showed high to medium vigor by the tetrazolium test. The mechanical depulping do not affect the seed germination, nor the viability and vigor of embryos HIE BRS Manicoré. It is recommended that the fruits of HIE BRS Manicoré remain in depulper machine for 40 minutes to completely remove the mesocarp residue.
AVALIA O DE INSETICIDAS PIRETRóIDES NO CONTROLE DA TRA A DAS CRUCíFERAS (Plutella xylostella L. 1758) EM REPOLHO CHEMICAL CONTROL OF THE DIAMONDBACK MOTH (Plutella xylostella L. 1758) IN CABBAGE USING PIRETROIDS INSECTICIDES
Ant?nio Lopes da Silva,Valquíria Rocha Santos Veloso,Jo?o Carlos Tardivo,Cláudio Dias de Abreu
Pesquisa Agropecuária Tropical , 2007, DOI: 10.5216/pat.v23i1.2624
Abstract: Realizou-se um experimento de campo no município de Goianápolis - Goiás, visando ao controle químico da tra a Plutella xylostella (L. 1758) em repolho, com os produtos piretróides cypermetrina (Arrivo 200 CE) nas dosagens de 3,2 e 6,0g i.a, por ha; permetrina (pounce 384 CE) nas dosagens de 16,5 e 33,4g i.a./ha; deltametrina (decis 25 CE) na dosagem de 2,0g i.a/ha e testemunha. O delineamento experimental foi de blocos ao acaso com 4 repeti es. Os produtos foram aplicados com pulverizador costal comum, dotados de bico D3, gastando-se 300 litros de calda/ha. As pulveriza es foram realizadas semanalmente até a colheita. A primeira pulveriza o foi feita 19 dias após transplantio das mudas para o campo. Pelos resultados obtidos, concluiu-se que a cypermetrina foi eficiente no controle da praga na dosagem de 30 ml/100 litros de água (6,0g i.a/ha) com 89% de eficiência, enquanto a permetrina e a deltametrina foram eficientes em todas as dosagens testadas. A trial to control the diamondback moth P. xylostella in cabbage, was carried out in Goianápolis, State of Goiás, Brazil. The treatments and dosage of the products per ha were: cypermethrin (3.2 and 6.0 g a.i.), permethrin (16.5 and 33.4g a.i.) deltamethrin (2.0g a.i.) and untreated check. The applications of treatment were made by the week until the harvest. The results showed that cypermethrin was efficient to control the pest at dosage of the 6.0g a.i. per ha. The permethrin and deltamethrin were efficient in all dosages tested.
Um estudo sobre os diferenciais de remunera??o entre os professores das redes pública e privada de ensino
Barbosa Filho, Fernando de Holanda;Pess?a, Samuel de Abreu;Afonso, Luís Eduardo;
Estudos Econ?micos (S?o Paulo) , 2009, DOI: 10.1590/S0101-41612009000300006
Abstract: this paper studies the earnings differentials between public and private professors in the different levels of education. in most of the cases, there is a positive differential in favor of the private sector. this conclusion changes when we compute the present value of the work contract (pvwc). the pvwc considers all the income received during the workers life span. here, we compute the present value of the wages received in the working life with the retirement benefits. the results show that the pvcw is higher in the public sector than in the private sector. we compute the internal rate of return (irr) of the retirement system. we conclude that different retirement rules between the two sectors have a huge impact in the professors′ life earnings with a public irr higher than the private one. we also conclude that public teachers do not receive lower earnings than their private counterparts.
Características da clientela atendida por crise hipertensiva na emergência de um hospital municipal de Fortaleza, Estado do Ceará = Characteristics of the clientele assisted for hypertensive crisis in the emergency of a municipal hospital in Fortaleza, Ceará State
Ione Cavalcante Lacerda,Samuel Diógenes Gomes Veloso,Ana Célia Caetano de Souza,Thereza Maria Magalh?es Moreira
Acta Scientiarum : Health Sciences , 2010,
Abstract: Objetivou-se descrever as características da clientela com crise hipertensiva. A pesquisa, quantitativa, descritiva e documental foi realizada em um hospital municipal de Fortaleza, Estado do Ceará em 2006. Na análise de 790 fichas de atendimento, observamos que 48,2% dos pacientes que apresentavam crise hipertensiva, encontravam-se na faixa etária de 40 a 59 anos e a maioria dos indivíduos era de casados (57,5%). Os principais sintomas encontrados foram cefaleia (35,7%) e dor precordial (12.3%) e, em 36,8% das fichas, n o houve registro de sinais e sintomas. As medica es mais prescritas foram o captopril (90,6%) e furosemida (53%). Conclui-se que a crise hipertensiva acomete muitos adultos, a maioria casados e que geralmente v o à emergência para fazer avalia o clínica de algum sinal/sintoma. Ressalta-se a necessidade de se alertar os profissionais de saúde quanto à importancia do registro para conhecimento e compreens o das características dessa clientela para o controle e a preven o da crise hipertensiva. The objective was to describe the characteristics of the clientele with hypertensive crisis. The research, which was quantitative, descriptive and documentary, was conducted at a municipal hospital in Fortaleza, Ceará Estate in 2006. In the analysis of 790 patient files, we found that 48.2% of patients presenting hypertensive crisis were in the age group between 40 and 59 years old. Most of the individuals were married (57.5%). The main symptoms were headache (35.7%) and chest pain (12.3%), and in 36.8% of files there was no record of signs and symptoms. The most prescribed medications were captopril (90.6%) and furosemide (53%). We conclude that hypertensive crisis affects many adults, most married and who usually go to the emergency room for clinical evaluation of a sign/symptom. We emphasize the need to alert health professionals about the importance of records for knowledge and understanding of the characteristics of that clientele, to control and prevent hypertensive crisis.
Job-related affective well-being scale (Jaws): evidences of factor validity and reliability / Escala de bem-estar afetivo no trabalho (Jaws): evidências de validade fatorial e consistência interna
Valdiney Veloso Gouveia,Patrícia Nunes da Fonsêca,Samuel Lincoln Bezerra Lins,Aline Vieira de Lima
Psicologia: Reflex?o e Crítica , 2008,
Abstract: This study aimed at adapting a measure of job-related affective well-being for the Brazilian milieu. Specifically, it was proposed to know evidences of factor validity and reliability of the Job-Related Affective Well-Being Scale (JAWS), assessing if its scores are influenced by participants' gender and age. The participants were 298 individuals employed in small or middle shopping malls in the city of Jo o Pessoa, PB; most of them were female (76.8%), with a mean age of 26 years old (SD = 6.87). A main component analysis (with promax rotation) was performed, revealing two components that jointly accounted for 48.1% of the total variance. They were named as positive affect (α = .94; 14 items) and negative affect (α = .87; 13 items). A general factor of affective well-being was also identified (α = .95; 27 items). Participants' scores on these factors were not influenced by their gender or age. These findings are discussed based on literature that describes the psychometric parameters of the JAWS as well as the correlation of affects with demographic variables.
Escala de bem-estar afetivo no trabalho (Jaws): evidências de validade fatorial e consistência interna
Gouveia, Valdiney Veloso;Fonsêca, Patrícia Nunes da;Lins, Samuel Lincoln Bezerra;Lima, Aline Vieira de;Gouveia, Rildésia S. V.;
Psicologia: Reflex?o e Crítica , 2008, DOI: 10.1590/S0102-79722008000300015
Abstract: this study aimed at adapting a measure of job-related affective well-being for the brazilian milieu. specifically, it was proposed to know evidences of factor validity and reliability of the job-related affective well-being scale (jaws), assessing if its scores are influenced by participants' gender and age. the participants were 298 individuals employed in small or middle shopping malls in the city of jo?o pessoa, pb; most of them were female (76.8%), with a mean age of 26 years old (sd = 6.87). a main component analysis (with promax rotation) was performed, revealing two components that jointly accounted for 48.1% of the total variance. they were named as positive affect (α = .94; 14 items) and negative affect (α = .87; 13 items). a general factor of affective well-being was also identified (α = .95; 27 items). participants' scores on these factors were not influenced by their gender or age. these findings are discussed based on literature that describes the psychometric parameters of the jaws as well as the correlation of affects with demographic variables.
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