523 research outputs found
Positive Solutions For a Schr\"odinger-Bopp-Podolsky system in
No full textWe consider the following Schr ̈odinger-Bopp-Podolsky system in R3 −ε2∆u+V(x)u+φu=f(u)
−ε2∆φ + ε4∆2φ = 4πu2,
where ε > 0 with V : R3 → R, f : R → R satisfy suitable assumptions. By using variational methods, we prove that the number of positive solutions is estimated below by the Ljusternick-Schnirelmann category of M , the set of minima of the potential V
Carlos Correa Mascaro e Moysés Brejon: contribuições dos assistentes de cátedra de José Quirino Ribeiro para a administração escolar no Brasil
No full textA proposta do presente trabalho é realizar um estudo sobre a produção acadêmica e a atuação de Carlos Correa Mascaro e Moysés Brejon enquanto assistentes de cátedra de José Querino Ribeiro, no período entre 1953 e 1968, no intuito de contribuir com o resgate da construção teórica da Administração Escolar no Brasil. José Querino Ribeiro, um dos pioneiros nos estudos de Administração Escolar no país, foi catedrático de Administração Escolar e Educação Comparada da Faculdade de Filosofia, Ciências e Letras da Universidade de São Paulo (USP), tendo como primeiros assistentes Mascaro e Brejon. O interesse em realizar este estudo surgiu durante a comemoração do centenário de seu nascimento, realizada na USP pela Faculdade de Educação da mesma Universidade e pela Associação Nacional de Política e Administração da Educação (ANPAE). O estudo propõe-se a realizar uma pesquisa bibliográfica, cujos materiais são prioritariamente as obras de Mascaro e Brejon desenvolvidas no período em que eram assistentes de cátedra, sendo esta pesquisa complementada por entrevistas com os profissionais da educação que, à época, trabalharam com os referidos autores, no intuito de obter dados sobre o funcionamento da Cadeira e a atuação de seus membros. O estudo do material é realizado com base na Análise de Conteúdo (BARDIN, 1977). Mascaro é um dos pioneiros nos estudos sobre o financiamento e a municipalização do ensino no Brasil. Em sua tese de Doutorado, descrita pelo autor como uma tentativa de contribuição para a racionalização das despesas públicas com o ensino, o autor analisou a situação do ensino municipal do Estado de São Paulo, considerando a municipalização do ensino uma medida...The proposal of the present piece of work is to carry on a study on the academic production and acting of Carlos Correa Mascaro and Moysés Brejon as José Querino Ribeiro’s chair assistants, in the period between 1953 and 1968 in order to contribute to the rescue of the theoretical construction of School Administration in Brazil. José Querino Ribeiro, one of the pioneers in studies of school administration in the country, was Chair Professor of School Administration and Comparative Education Faculty at Faculdade de Filosofia, Ciências e Letras in the Universidade de São Paulo (USP), and his first assistants being Brejon and Mascaro. The interest in performing this study arose during the celebration of his hundredth birthday, held at USP by its School of Education together with Associação Nacional de Política e Administração da Educação (ANPAE). The study aimed at conducting a literature search, whose materials are primarily pieces of work by Mascaro and Brejon developed in the period they were assistants to the faculty, this research being complemented by interviews with education professionals who, at the time, worked with these authors in order to obtain data on the functioning of the Chair and the performance of its members. The study of the material is based on Content Analysis (BARDIN, 1977). Mascaro is a pioneer in studies on financing and decentralization of education in Brazil. In his doctoral dissertation, described by the author as an attempt to contribute to the rationalization of public expenditure on education, the author analyzed the situation of city education in the state of São Paulo, considering municipalization of education as a premature measure at that time. During his Post-Doctoral studies analyzed... (Complete abstract click electronic access below)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES
Thrips (Thysanoptera: Thripidae, Phlaeothripidae) damaging peach in Paranapanema, São Paulo State, Brazil.
No full textObjetivando identificar as espécies de tripes associadas ao pessegueiro e as injúrias causadas, pomares das cultivares Aurora e Tropic Beauty foram monitorados semanalmente, de maio a agosto de 2005, no Distrito de Holambra II, em Paranapanema, SP. Flores e frutos de cada seis plantas por hectare foram amostrados pela técnica da batida. Foram identificadas Frankliniella occidentalis (Pergande), F. schultzei (Trybom), F. gardenia (Moulton), F. condei John, F. insularis (Franklin) e Thrips tabaci Lindeman em Thripidae, e, Haplothrips gowdeyi (Franklin) em Phlaeothripidae. F. occidentalis foi dominante compondo 55,7% do total de espécimes amostrado. Injúrias leves e severas foram registradas nos frutos. Seeking to identify thrips species associated to peach and the injuries they cause, plants of Aurora and Tropic Beauty cultivars were weekly monitored, from May to August of 2005, in Holambra II district, in Paranapanema, SP. Flowers and fruits from six plants per hectare were sampled by the hitting technique. Frankliniella occidentalis (Pergande), F. schultzei (Trybom), F. gardenia (Moulton), F. condei John, F. insularis (Franklin) and Thrips tabaci Lindeman, in Thripidae,and Haplothrips gowdeyi (Franklin), in Phlaeothripidae were identifi ed. F. occidentalis was dominant, comprising 55.7% of the total specimens sampled. Slight and severe injuries were registered in fruits.KEY WORDS: Rosaceae, thysanopteran, pest species, habitDisponível também no formato online
On the nature of rainfall intermittency as revealed by different metrics and sampling approaches
No full textA general consensus on the concept of rainfall intermittency has not yet been reached, and intermittency is often attributed to different aspects of rainfall variability, including the fragmentation of the rainfall support (i.e., the alternation of wet and dry intervals) and the strength of intensity fluctuations and bursts. To explore these different aspects, a systematic analysis of rainfall intermittency properties in the time domain is presented using high-resolution (1-min) data recorded by a network of 201 tipping-bucket gauges covering the entire island of Sardinia (Italy). Four techniques, including spectral and scale invariance analysis, and computation of clustering and intermittency exponents, are applied to quantify the contribution of the alternation of dry and wet intervals (i.e., the rainfall support fragmentation), and the fluctuations of intensity amplitudes, to the overall intermittency of the rainfall process. The presence of three ranges of scaling regimes between 1 min to ~ 45 days is first demonstrated. In accordance with past studies, these regimes can be associated with a range dominated by single storms, a regime typical of frontal systems, and a transition zone. The positions of the breaking points separating these regimes change with the applied technique, suggesting that different tools explain different aspects of rainfall variability. Results indicate that the intermittency properties of rainfall support are fairly similar across the island, while metrics related to rainfall intensity fluctuations are characterized by significant spatial variability, implying that the local climate has a significant effect on the amplitude of rainfall fluctuations and minimal influence on the process of rainfall occurrence. In addition, for each analysis tool, evidence is shown of spatial patterns of the scaling exponents computed in the range of frontal systems. These patterns resemble the main pluviometric regimes observed on the island and, thus, can be associated with the corresponding synoptic circulation patterns. Last but not least, we demonstrate how the methodology adopted to sample the rainfall signal from the records of the tipping instants can significantly affect the intermittency analysis, especially at smaller scales. The multifractal scale invariance analysis is the only tool that is insensitive to the sampling approach. Results of this work may be useful to improve the calibration of stochastic algorithms used to downscale coarse rainfall predictions of climate and weather forecasting models, as well as the parameterization of intensity-duration-frequency curves, adopted for land planning and design of civil infrastructures
Análise de “um lugar ao sol”, documentário de gabriel mascaro, à luz da semiótica tensiva
No full textBased on a tensive perspective of the French Semiotics, this paper aims at examining the enunciative strategies of “Um Lugar ao Sol”, documentary by Gabriel Mascaro. Internationally prized for his work, the author can be considered a shrewd enunciator since he overlaps and sews different content planes: he adds, to the basic narrative program -- consisted of euphoric content --, two other ones with dysphoric content, in order to build a counter-program. Thus, although, separately, those contents tend to have slowed tempo and a slow elã, when overlapped, they are toned and accelerated. In addition to this, “Um Lugar ao Sol” brings the perception of a subject accustomed to miscegenation, since the happening and the concessive sintax make part of its core.Sob a ótica tensiva da semiótica francesa, este artigo visa a analisar as estratégias enunciativas de “Um Lugar ao Sol”, documentário de Gabriel Mascaro. Premiado internacionalmente por sua obra, o autormostra-se um enunciador astuto ao sobrepor e costurar diferentes planos de conteúdo: intercala, ao programa narrativo de base -- constituído por relatos euforizantes de moradores de coberturas do Brasil --, outros dois de conteúdo disfórico, de modo a construir um contra-programa. Dessa forma, embora os conteúdos, separadamente, tendam a um andamento desacelerado e possuam o elã da lentidão, quando sobrepostos, são tonificados e acelerados, na medida em quese encontram amalgamados.Outrossim, “Um Lugar ao Sol” traz a percepção de um sujeito afeito à mestiçagem, uma vez que possui o acontecimento e a sintaxe concessiva em seu núcleo
Carlos Correa Mascaro e Moysés Brejon: contribuições dos assistentes de cátedra de José Quirino Ribeiro para a administração escolar no Brasil
No full textA proposta do presente trabalho é realizar um estudo sobre a produção acadêmica e a atuação de Carlos Correa Mascaro e Moysés Brejon enquanto assistentes de cátedra de José Querino Ribeiro, no período entre 1953 e 1968, no intuito de contribuir com o resgate da construção teórica da Administração Escolar no Brasil. José Querino Ribeiro, um dos pioneiros nos estudos de Administração Escolar no país, foi catedrático de Administração Escolar e Educação Comparada da Faculdade de Filosofia, Ciências e Letras da Universidade de São Paulo (USP), tendo como primeiros assistentes Mascaro e Brejon. O interesse em realizar este estudo surgiu durante a comemoração do centenário de seu nascimento, realizada na USP pela Faculdade de Educação da mesma Universidade e pela Associação Nacional de Política e Administração da Educação (ANPAE). O estudo propõe-se a realizar uma pesquisa bibliográfica, cujos materiais são prioritariamente as obras de Mascaro e Brejon desenvolvidas no período em que eram assistentes de cátedra, sendo esta pesquisa complementada por entrevistas com os profissionais da educação que, à época, trabalharam com os referidos autores, no intuito de obter dados sobre o funcionamento da Cadeira e a atuação de seus membros. O estudo do material é realizado com base na Análise de Conteúdo (BARDIN, 1977). Mascaro é um dos pioneiros nos estudos sobre o financiamento e a municipalização do ensino no Brasil. Em sua tese de Doutorado, descrita pelo autor como uma tentativa de contribuição para a racionalização das despesas públicas com o ensino, o autor analisou a situação do ensino municipal do Estado de São Paulo, considerando a municipalização do ensino uma medida...The proposal of the present piece of work is to carry on a study on the academic production and acting of Carlos Correa Mascaro and Moysés Brejon as José Querino Ribeiro’s chair assistants, in the period between 1953 and 1968 in order to contribute to the rescue of the theoretical construction of School Administration in Brazil. José Querino Ribeiro, one of the pioneers in studies of school administration in the country, was Chair Professor of School Administration and Comparative Education Faculty at Faculdade de Filosofia, Ciências e Letras in the Universidade de São Paulo (USP), and his first assistants being Brejon and Mascaro. The interest in performing this study arose during the celebration of his hundredth birthday, held at USP by its School of Education together with Associação Nacional de Política e Administração da Educação (ANPAE). The study aimed at conducting a literature search, whose materials are primarily pieces of work by Mascaro and Brejon developed in the period they were assistants to the faculty, this research being complemented by interviews with education professionals who, at the time, worked with these authors in order to obtain data on the functioning of the Chair and the performance of its members. The study of the material is based on Content Analysis (BARDIN, 1977). Mascaro is a pioneer in studies on financing and decentralization of education in Brazil. In his doctoral dissertation, described by the author as an attempt to contribute to the rationalization of public expenditure on education, the author analyzed the situation of city education in the state of São Paulo, considering municipalization of education as a premature measure at that time. During his Post-Doctoral studies analyzed... (Complete abstract click electronic access below)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES
Carlos Correa Mascaro e Moysés Brejon: contribuições dos assistentes de cátedra de José Quirino Ribeiro para a administração escolar no Brasil
No full textA proposta do presente trabalho é realizar um estudo sobre a produção acadêmica e a atuação de Carlos Correa Mascaro e Moysés Brejon enquanto assistentes de cátedra de José Querino Ribeiro, no período entre 1953 e 1968, no intuito de contribuir com o resgate da construção teórica da Administração Escolar no Brasil. José Querino Ribeiro, um dos pioneiros nos estudos de Administração Escolar no país, foi catedrático de Administração Escolar e Educação Comparada da Faculdade de Filosofia, Ciências e Letras da Universidade de São Paulo (USP), tendo como primeiros assistentes Mascaro e Brejon. O interesse em realizar este estudo surgiu durante a comemoração do centenário de seu nascimento, realizada na USP pela Faculdade de Educação da mesma Universidade e pela Associação Nacional de Política e Administração da Educação (ANPAE). O estudo propõe-se a realizar uma pesquisa bibliográfica, cujos materiais são prioritariamente as obras de Mascaro e Brejon desenvolvidas no período em que eram assistentes de cátedra, sendo esta pesquisa complementada por entrevistas com os profissionais da educação que, à época, trabalharam com os referidos autores, no intuito de obter dados sobre o funcionamento da Cadeira e a atuação de seus membros. O estudo do material é realizado com base na Análise de Conteúdo (BARDIN, 1977). Mascaro é um dos pioneiros nos estudos sobre o financiamento e a municipalização do ensino no Brasil. Em sua tese de Doutorado, descrita pelo autor como uma tentativa de contribuição para a racionalização das despesas públicas com o ensino, o autor analisou a situação do ensino municipal do Estado de São Paulo, considerando a municipalização do ensino uma medida...The proposal of the present piece of work is to carry on a study on the academic production and acting of Carlos Correa Mascaro and Moysés Brejon as José Querino Ribeiro’s chair assistants, in the period between 1953 and 1968 in order to contribute to the rescue of the theoretical construction of School Administration in Brazil. José Querino Ribeiro, one of the pioneers in studies of school administration in the country, was Chair Professor of School Administration and Comparative Education Faculty at Faculdade de Filosofia, Ciências e Letras in the Universidade de São Paulo (USP), and his first assistants being Brejon and Mascaro. The interest in performing this study arose during the celebration of his hundredth birthday, held at USP by its School of Education together with Associação Nacional de Política e Administração da Educação (ANPAE). The study aimed at conducting a literature search, whose materials are primarily pieces of work by Mascaro and Brejon developed in the period they were assistants to the faculty, this research being complemented by interviews with education professionals who, at the time, worked with these authors in order to obtain data on the functioning of the Chair and the performance of its members. The study of the material is based on Content Analysis (BARDIN, 1977). Mascaro is a pioneer in studies on financing and decentralization of education in Brazil. In his doctoral dissertation, described by the author as an attempt to contribute to the rationalization of public expenditure on education, the author analyzed the situation of city education in the state of São Paulo, considering municipalization of education as a premature measure at that time. During his Post-Doctoral studies analyzed... (Complete abstract click electronic access below)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES
Adult complex regional pain syndrome type I: A narrative review
No full textComplex regional pain syndrome type I (CRPS I) is a multifactorial painful disorder with a complex pathogenesis. Both peripheral and central mechanisms are involved. Acute CRPS I is considered to be an exaggerated inflammatory disorder; however, over time, because of altered function of the sympathetic nervous system and maladaptive neuroplasticity, CRPS I evolves into a neurological disorder. This review thoroughly describes the pathophysiological aspects of CRPS I and summarizes the potential therapeutic options. The mechanisms and targets of the treatment are different in the early and late stages of the disease. This current review builds on a previous review by this author group by deepening the role of the peripheral classic and neuronal inflammatory component in the acute stage of this painful disorder. Level of evidence: Not applicable
A Tricycle Model to Accurately Control an Autonomous Racecar with Locked Differential
No full textIn this paper, we present a novel formulation to
model the effects of a locked differential on the lateral dynamics
of an autonomous open-wheel race car. The model is used in a
Model Predictive Controller in which we included a micro-steps
discretization approach to accurately linearize the dynamics
and produce a prediction suitable for real-time implementation.
The stability analysis of the model is presented, as well as a brief
description of the overall planning and control scheme which
includes an offline trajectory generation pipeline, a nonlinear local
speed profile planner, and a low-level longitudinal controller.
An improvement of the lateral path tracking is demonstrated
in preliminary experimental results that have been produced on
a Dallara AV-21during the first Indy Autonomous Challenge
event on the Monza F1 racetrack. Final adjustments and tuning
have been performed in a high-fidelity simulator demonstrating
the effectiveness of the solution when performing close to the
tirelimits
Utilità del Retinal Thickness Analizer (R.T.A.) quale tecnica innovativa in oftalmologia medico-legale per l'individuazione precoce delle alterazioni neuroftalmologiche subcliniche da glaucoma.
No full textUtilità del Retinal Thickness Analizer (R.T.A.) quale tecnica innovativa in oftalmologia medico-legale per l'individuazione precoce delle alterazioni neuroftalmologiche subcliniche da glaucoma
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