Impacto do racionamento nos resultados das empresas concessionárias do serviço público de distribuição de energia elétrica: um estudo nas empresas privadas da Região Nordeste

This work verifies the impact caused by the Emergencial Program of Reduction of Consumption of Electric Energy (energy-rationing program) in the results of the concessionary private companies of the public service of electric energy distribution localized in the Northeast Area. As the rationing invigorated from June 2001 to February 2002, its effects are diluted in the results presented by these companies in the second semester of 2001 and first quarter of 2002, with prominence for the last quarter of 2001, when the revenue of extraordinary tariff restore was instituted by the National Agency of Electric Energy (ANEEL), consequence of the so-called General Agreement of the Electric Sector made between the federal government and the companies of the electric sector. The structure of a generic electric sector and a historical review of the Brazilian electric sector from the time it was controlled by the private enterprises, including the State control period, about 1960, and returning to the control of the private enterprises in 1990, under a new regulation structure are presented. An explanation of the models of economic regulation that Brazil used for the electric sector is made, with prominence for the price cap that is the actual effective model. The process of tariff revision foreseen in the concession contracts signed by the federal government and the concessionary companies is presented, highlighting its two stages: the tariff rebalancing that defines the new price cap and the calculation of the factor X that establishes the efficiency goals for the companies. There is made a presentation of the Emergencial Program of Reduction of Consumption of Electric Energy and of the consequent General Agreement of the Electric Sector, which created the revenue of extraordinary tariff restore. A conceptual revision on reviews is presented, regarding to concepts, accomplishment and recognition. A brief review of the six companies that made part of the worked sample is also presented. Analyzing the quarters historical review and of amount of sold energy, it was possible to conclude that the energy-rationing altered the results of the studied companies significantly and that alteration was masked by the accounting process of the revenue of extraordinary tariff restore

Impacto da hipertensão arterial no remodelamento ventricular, em pacientes com estenose aórtica

FUNDAMENTO: A hipertrofia ventricular esquerda (HVE) é comum em pacientes com hipertensão arterial sistêmica (HAS) e estenose aórtica (EAo) e, com certa frequência, encontramos associação entre estas patologias. Mas, em tal situação, não está clara a importância de cada uma na HVE. OBJETIVO: 1 - Avaliar em pacientes portadores de EAo, submetidos previamente a estudo ecocardiográfico, a magnitude da HVE, nos casos de EAo isolada e associada à HAS; 2 - Avaliar o padrão de remodelamento geométrico nas duas situações. MÉTODOS: Estudo retrospectivo, observacional e transversal, incluindo 298 pacientes consecutivos, com EAo ao ecocardiograma. HVE foi considerada para massa miocárdica > 224g em homens e > 162g em mulheres. Os pacientes foram classificados como portadores de EAo leve (gradiente máximo < 30,0 mmHg), moderada (entre 30 e 50,0 mmHg) e grave (> 50,0 mmHg), além disso, foram separados em dois subgrupos: com e sem HAS. RESULTADOS: Nos três níveis de lesão aórtica, a massa ventricular esquerda foi maior na EAo associada à HAS do que na EAo isolada (EAo leve: 172 ± 45 vs 223 ± 73g, p < 0,0001; EAo moderada: 189 ± 77 vs 245 ± 81g, p = 0,0313; EAo grave: 200 ± 62 vs 252 ± 88g, p = 0,0372). Presença de HAS esteve associada a maior risco de HVE (OR = 2,1,IC95%:1,2-3,6; p = 0,012). Pacientes com EAo grave e HAS apresentaram predomínio de hipertrofia concêntrica, quando comparados com aqueles normotensos (p = 0,013). CONCLUSÃO: em pacientes com EAo, a presença de HAS foi um fator adicional de aumento da massa ventricular esquerda, interferindo também na geometria ventricular.

Impacto de herbicidas em isolados de Trichoderma spp.

O uso de microrganismos é uma alternativa para o controle de doenças em plantas. Todavia, é prudente verificar a interação desse com os demais métodos de controle empregados em determinada cultura. Dessa forma, objetivou-se avaliar a fungitoxicidade dos herbicidas sobre o crescimento e desenvolvimento dos isolados de Trichoderma spp. Utilizou-se o delineamento inteiramente casualizado, em esquema fatorial 6 x 6 x 4, com quatro repetições. O fator A correspondeu aos herbicidas pendimethalin, clomazone, carfentrazone-ethyl, oxadiazon, thiobencarb + propanil e byspiribac-sodium; o fator B, às doses dos herbicidas - 0, 25, 50, 75, 100 e 200% da dose recomendada; e o fator C, aos isolados de Trichoderma spp. AJAM 18, CE 66, TRI 01 e TRI 02. O ensaio foi realizado em condições in vitro; avaliaram-se o crescimento micelial radial (CMR) e a esporulação dos isolados após aplicação dos herbicidas. Observaram-se diferenças de sensibilidade dos isolados para o mesmo produto testado. O oxadiazon reduziu o CMR dos isolados AJAM 18 e TRI 01 em 66 e 35%, respectivamente. No entanto, reduziu apenas 16% do CMR do isolado TRI 02 e não alterou o CMR do isolado CE 66 mesmo em 200% da dose recomendada. Verificaram-se diferentes efeitos dos produtos em cada isolado. A mistura comercial de thiobencarb+propanil foi altamente tóxica aos isolados de Trichoderma spp., com reduções em torno de 85% no CMR e no número de esporos. Por outro lado, o byspiribac-sodium pouco afetou os isolados, apresentando reduções inferiores a 10% no CMR e na esporulação. O carfentrazone-ethyl e byspiribac-sodium demonstraram ser compatíveis com os isolados de Trichoderma spp. estudados.

Nuevos enfoques teóricos, evolución de las políticas regionales e impacto territorial de la globalización

Incluye Bibliografía

Las reformas laborales y su impacto en el funcionamiento del mercado de trabajo en Chile

Incluye Bibliografía

decifra-me ou te devoro: Uma análise das variáveis e fatores que influenciam o impacto da pesquisa científica desenvolvida na área de sustentabilidade no Brasil

The goal of this research is to analyze what are the key variables and factors that, in the perception of researchers in the field of sustainability in Brazil, may be influencing the impact research conducted by them. Therefore, we designed a data collection instrument with 14 variables, responded online by 89 researchers in the field of sustainability in Brazil. The results show that these researchers realize the impact of their research as a process influenced by four factors.

Impacto genético e ambiental na aptidão cardiorrespiratória, atividade física e metabolismo de glicose

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Provão: o impacto de sua implantação nos cursos superiores de Presidente Prudente - SP

Pós-graduação em Educação - FCT

Indicadores de impacto, visibilidade e colaboração para a produção científica da Pós-graduação brasileira: um estudo nos programas de excelência na área de Zootecnia

Pós-graduação em Ciência da Informação - FFC

O impacto do estágio nas crenças pedagógicas de professores de inglês em formação

Pós-graduação em Estudos Linguísticos - IBILCE

Impacto do padrão geométrico ventricular na remodelação cardíaca após o infarto do miocárdio

BACKGROUND: The relevance of left ventricular (LV) geometric pattern after myocardial infarction is not known. OBJECTIVES: To analyze the presence of different LV geometric patterns and teir impact as a predictor of remodeling in patients with myocardial infarction. METHODS: Patients with anterior acute myocardial infarction (n = 80) were divided according to the geometric pattern: normal (normal left ventricular mass index [LVMI] and normal relative wall thickness [RWT]), concentric remodeling (normal LVMI and increased RWT), concentric hypertrophy (increased LVMI and RWT) and eccentric hypertrophy (increased LVMI and normal RWT). After six months, echocardiographic assessment was repeated. RESULTS: Four patients died. Of the survivors, 41 showed remodeling (R +), whereas 39 did not (R-). Considering the geometric pattern, the cases were distributed as follows: 24 patients with normal pattern, 13 with concentric remodeling, 29 with concentric hypertrophy and 14 with eccentric hypertrophy. Patients who showed remodeling had larger infarction sizes analyzed by peak CPK (R + = 4,610 (1,688-7,970), R- = 1,442 (775-4247), p <0.001) and CK-MB (R + = 441 (246 - 666), R- = 183 (101-465), p <0.001), trend towards higher prevalence of concentric remodeling (R+ = 10, R- = 3, p = 0.08) and lower prevalence of eccentric hypertrophy (R + = 2 R- = 12, p = 0.006). In the multivariate regression analysis, infarction size was a predictor (OR = 1.01, p = 0.020) and eccentric hypertrophy was a protective factor (OR = 0.189, p = 0.046) of ventricular remodeling after coronary occlusion. CONCLUSION: The LV geometric pattern of can have an impact on the remodeling process in patients with myocardial infarction.

O impacto do Método Mãe Canguru no processo de aprendizagem de prematuros de baixo peso: Revisão da literatura

Technology advances and scientific studies in Neonatal Intensive Care Units (NICU) have contributed significantly to reduce mortality and morbidity of at-risk newborns (NB). However, they are more likely to present neurological and/or developmental psychomotor delay with neurological and sensory alterations. Therefore, proposals for neonatal intervention were developed with the aim of protecting the baby and offering appropriate incentives to minimize the effects of hospital intervention. To this end, programs of protective measures such as the Kangaroo Mother Care (KMC) were developed. Given the relevance of the issue described, this systematic review critically appraises articles from the national and international literature, published in recent years (from 2000 to 2011), that describe whether the KMC can be a protective factor for the development of writing in premature infants. The textual search was conducted using the Virtual Health Library (VHL), a website that covers publications worldwide, allowing access to articles from health science, including LILACS, IBECS, MEDLINE, Cochrane Library and SciELO, as database. The findings revealed that infants who participated in the KMC program showed improvements in their development and that factors such as low-birth-weight prematurity and learning disorders have close relationship with the onset of motor impairments and changes in psychomotor development. The findings showed no articles describing the KMC as a protective factor for the incidence of dysgraphia. Thus, we emphasize the importance of conducting further studies on these topics.

Produção científica dos Programas de Pós-Graduação de excelência no Brasil: colaboração internacional e impacto na área de Zootecnia

This research aimed to study the international scientific collaboration, through co-authorship, and the impact of full papers published in journals Qualis A1 and A2 of Graduate Programs in Animal Science of excellence (2007-2009). Through the indicators of production of graduate evaluation from CAPES, the research gathered the scientific production of three graduate programs, adding up to 125 articles. The citations received were gathered from the SCOPUS database and the impact of journals from the SCImago Journal & Country Rank. In order to investigate the correlation among the indicators analyzed, Pearson’s linear correlation coefficients were calculated. It was observed that the Impact Factor (IF) of the journal may influence the number of citations and that there is a weak trend for association of IFs with the number of coauthor countries. It was not observed a statistically significant correlation between the number of collaborating countries and citations received by the article.

Fatores associados com a regressão da hipertrofia esquerda em diálise e impacto com mortalidade cardiovascular

Pós-graduação em Fisiopatologia em Clínica Médica - FMB

Traços quantitativos e abundância de drosofilídeos como indicadores de impacto ambiental em fragmentos de floresta estacional semidecidual

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)