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Search Results: 1 - 10 of 254288 matches for " José D; "
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Testing for Deterministic Components in Vector Seasonal Time Series  [PDF]
José Luis Gallego, Carlos Díaz
Open Journal of Statistics (OJS) , 2011, DOI: 10.4236/ojs.2011.13017
Abstract: Certain locally optimal tests for deterministic components in vector time series have associated sampling distributions determined by a linear combination of Beta variates. Such distributions are nonstandard and must be tabulated by Monte Carlo simulation. In this paper, we provide closed form expressions for the mean and variance of several multivariate test statistics, moments that can be used to approximate unknown distributions. In particular, we find that the two-moment Inverse Gaussian approximation provides a simple and fast method to compute accurate quantiles and p-values in small and asymptotic samples. To illustrate the scope of this approximation we review some standard tests for deterministic trends and/or seasonal patterns in VARIMA and structural time series models.
Research into Mercury Exposure and Health Education in Subsistence Fish-Eating Communities of the Amazon Basin: Potential Effects on Public Health Policy
José G. Dórea
International Journal of Environmental Research and Public Health , 2010, DOI: 10.3390/ijerph7093467
Abstract: The neurotoxic effects of fish-methylmercury (meHg) consumed regularly are considered hazardous to fetuses and newborn infants; as a result fish consumption advisories are an important asset to control meHg exposure in affluent societies. These concerns are now part of health promotion programs for Amazon subsistence villagers. While urban dwellers in affluent societies can choose an alternative nutritious diet, traditional and subsistence communities are caught up in controversial issues and lifestyle changes with unintended health consequences. Traditional fish-eating populations of industrialized and non-industrialized regions may be exposed to different neurotoxic substances: man-made pollutants and environmentally occurring meHg. Additionally, in non-industrialized countries, pregnant women and infants are still being immunized with thimerosal-containing vaccines (TCVs) which degrade to ethylmercury (etHg). Therefore, the complexity involving fish-meHg associated with wild-fish choices and Hg exposure derived from TCVs is difficult to disentangle and evaluate: are villagers able to distinguish exposure to differently hazardous chemical forms of Hg (inorganic, fish-meHg, and injected etHg)? Is it possible that instead of helping to prevent a plausible (unperceived) fish-meHg associated neurocognitive delay we may inadvertently arouse panic surrounding Hg exposure and disrupt subsistence fish-eating habits (necessary for survival) and life-saving vaccination programs (required by public health authorities)? These questions characterize the incompleteness of information related on the various chemical forms of Hg exposure and the need to convey messages that do not disrupt nutritional balance and disease prevention policies directed at Amazonian subsistence communities.
La serpiente en el arte rupestre de Nocui, norte semiárido de Chile
Castelleti D,José;
Estudios atacame?os , 2008, DOI: 10.4067/S0718-10432008000200005
Abstract: rock art research recently conducted at the pastures of nocui (region of coquimbo, chile) reveals the remarkable technical and iconographic development archieved in engravings during early ceramics period (ca. 2000 bp) and until the blossoming of diaguita culture (1000-1536 ad). this suggest that rupestrian expressions played a primary rol in the process of appropriation of the local territory, as carried out through a seasonal hunting and grazing economic strategies. we propose that the high symbolic value attributed in this way to specific locations became sacralized through time, making certaim places essential to the construction of local identity and the promotion of its cosmovision.
Analysis by Fourier transform infrared spectroscopy of Johnstonia (Corystospermales, Corystospermaceae) cuticles and compressions from the Triassic of Cacheuta, Mendoza, Argentina
D`angelo,José Alejandro;
Ameghiniana , 2006,
Abstract: spectroscopic information (functional groups and semi-quantitative data) of corystosperm cuticles and compressions from the triassic of cacheuta, mendoza, argentina, is reported for the first time. fossil leaves of johnstonia spp. (corystospermales, corystospermaceae) were analyzed by fourier transform infrared spectroscopy (ft-ir) in an attempt to identify spectroscopic patterns that would characterize these taxa. infrared spectra obtained from cuticles and compressions of johnstonia spp. showed a relatively rich aliphatic structure as well as hydroxyl, carbonyl and some other oxygen-containing functional groups. semi-quantitative data derived from ft-ir spectra were statistically analyzed using one-way analysis of variance test (anova). in the three taxa studied herein, one-way anova revealed significant differences between cuticles and their corresponding compressions regarding the ch2/ch3 ratio (p < 0.05). considering the ft-ir-derived ratios ch2/ch3, al/ox, ox1/ox2 and c-h/c=o, there were not significant differences (p > 0.05) between abaxial and adaxial surfaces in the cuticular samples of johnstonia coriacea var. coriacea (johnston) walkom here studied. infrared-derived ratios here considered (ch2/ch3, al/ox and ar/al) in compression samples did not differ significantly from one taxon to the other (p > 0.05). however, cuticular specimens of johnstonia spp. showed statistical differences (p < 0.05) among the taxa studied, considering ch2/ch3, ox1/ox2 and c-h/c=o ratios. although these results are suggestive of the likely application of ft-ir technique to the chemotaxonomic study of the corystospermaceae, more data are needed before obtaining definitive conclusions.
Agress?o e vitima??o entre adolescentes, em contexto escolar: Um estudo empírico
Martins,Maria José D.;
Análise Psicológica , 2005,
Abstract: this study presents data that allowed knowing the frequency of several types of bullying (aggression and victimization) - physical, verbal and indirect or relational - that occurred between adolescents who attend the middle and secondary schools of a city in the southeast of portugal. the study compares the frequency and types of bullying, obtained through a self-report, and related them with sex, three levels of education and three socio-economic levels. the results of this study are also compared with the results from other european studies about this theme.
Condutas agressivas na adolescência: Factores de risco e de protec??o
Martins,Maria José D.;
Análise Psicológica , 2005,
Abstract: this article presents several theoretical approaches to explain the fact that adolescence is the period of life where more risks are taken, concerning to health, life and problems with the legal system. we emphasize jessor approach, because it delineate risk and protector factors in the individual and in his environment, we describe with some detail those factors and related them with the findings that several researches from different authors had revealed in the last years. we conclude that jessor approach is very pertinent to understand, predict and prevent the emergence of aggressive conduct in adolescents.
Substratos utilizados para a cria??o de dípteros caliptratos no jardim zoológico do Rio de Janeiro (Rio-Zoo)
D'Almeida, José Mario;
Memórias do Instituto Oswaldo Cruz , 1989, DOI: 10.1590/S0074-02761989000200016
Abstract: in rio-zoo 7,377 callyptrate flies, belonging to 4 families and 22 species were bred, from august 1987 to april 1988. the substrate media used were: banana, shrimp, mouse carcas, dog faeces, human faeces, bovine liver, squid, papaya, fish, crab and tomato. the frequency of the bred species are as follows: fannia sp. (subgroup pusio), atherigona orientalis, chrysomyia megacephala, phaenicia eximia, paraphrissopoda chrysostoma, ophyra genescens, synthesiomyia nudiseta, ophyra chalcogaster, oxysarcodexia fluminensis and hemilucilia segmentaria. data concerning the development of the larvae in captive animal faeces is presented. the most prevalent species were fannia sp., sarcophagula occidua, ophyra chalcogaster, ravinia belforti and phaenicia eximia.
Calyptrate diptera (Muscidae and Anthomyidae) of the state of Rio de Janeiro: I. Synanthropy
D'Almeida, José Mario;
Memórias do Instituto Oswaldo Cruz , 1992, DOI: 10.1590/S0074-02761992000300008
Abstract: the synanthropy of muscidae and anthomyidae was studied in three ecologically distinct areas of the metropolitan region of rio de janeiro. using baits such row fish, decomposing bovine liver, fresh human faeces and mashed banana it was found that synthesiomyia nudiseta, atherigona orientalis, and musca domestica are highly synanthropic in contrast with neomuscina pictipenis, phaonantho devia and morellia maculipenis found exclusively in the forest.
Substratos utilizados para a cria??o de dípteros caliptratos em uma área urbana do Município do Rio de Janeiro
D'Almeida, José Mario;
Memórias do Instituto Oswaldo Cruz , 1988, DOI: 10.1590/S0074-02761988000200009
Abstract: in an urban area of municipality of rio de janeiro were bred 10,988 calliptrate flies belonging to 4 families and 22 species. breeding was effectuated in four steps during the years of 1986 and 1987. it were used as larvae substrate; fish, liver, mouse carcas, human and dog faeces, shrimp, crab, banana, mango, papaya and tomato. the species bred with frequency were: fannia sp 9sub grouppusio), atherigona orientalis, phaenicia eximia, paraphrissopoda chrysostoma, chrysomyia megacephala, ophyra solitaria, musca domestica, sarcophagula occidua, morellia flavicornis e sarcodexia innota.
Dípteros caliptrados (Muscidae e Anthomyiidae) da regi?o metropolitana do Rio de Janeiro, RJ: II. Atratividade e freqüência sazonal
d'Almeida, José Mario;
Revista Brasileira de Zoologia , 1991, DOI: 10.1590/S0101-81751991000100002
Abstract: nine thousand, six hundred and ninety-one flies of the family muscidae (47 species) and anthomyiidae (2 species) were captured. flies were collected in three ecologically distinct areas (urban, rural and forest) within the metropolitan region of the city of rio de janeiro using as baits decomposing fish, bovine liver, fresh human faeces and mashed banana with sugar. fish attracted the highest number of flies all over the year. large number of flies were always collected in the summer and spring but reduced in the winter. among several species of flies, atherigona orientalis schiner, 1868, musca domestica linnaeus, 1758 and synthesiomya nudiseta (wulp, 1883) were always frequent.
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