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Search Results: 1 - 10 of 95914 matches for " Ludmila Maria Guimar?es Pereira "
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Comparative Study of Endothelial Function and Uterine Artery Doppler Velocimetry between Pregnant Women with or without Preeclampsia Development
Augusto Henriques Fulgêncio Brand?o,Ludmila Maria Guimares Pereira,Alessandra Cristina de Oliveira Gon?alves,Zilma Silveira Nogueira Reis,Henrique Vítor Leite,Ant?nio Carlos Vieira Cabral
Journal of Pregnancy , 2012, DOI: 10.1155/2012/909315
Abstract: Background. Poor placentation and systemic endothelial dysfunction have been identified as main events in Preeclampsia (PE). The relationship and chronology of these phenomena are important if we are to understand the pathophysiological mechanisms underlying this major clinical problem. Objectives. To compare the evolution of placentation and endothelial function in normotensive and preeclamptic pregnancies. Patients and methods. In a prospective cohort study, 59 pregnant women with a high risk of developing PE were subjected to flow-mediated dilation (FMD) and to Doppler velocimetry of uterine arteries in order to obtain their Pulsatility Index (UtA-PI). The variations in the FMD and UtA-PI values, between 16+0 and 19+6 and 24+0 and 27+6 weeks of gestation, were compared, taking PE development into consideration. Results. Nine patients developed PE and the other 50 women remained normotensive. At 16+0 to 19+6 weeks of pregnancy, patients that developed PE presented higher values of UtA-PI than the normotensive group, but there was no difference in FMD results between them. At 24+0 to 27+6 weeks, the patients that developed PE presented higher values of UtA-PI and lower values of FMD than the women that remained normotensive. Conclusions. These results corroborate the evidence that endothelial injury is secondary to poor placentation. 1. Introduction Preeclampsia (PE) is a multisystemic disorder that accounts for a large number of maternal deaths in developed and developing countries worldwide [1–3]. Although its etiology remains unclear, several events in PE physiopathology are well studied and can be evaluated using biochemical or biophysical methods. In order to prevent PE complications, there are many early detection markers, which include maternal demographics, past medical, obstetric, family history, and some current pregnancy characteristics [4–6]. Maternal factors and history alone can be used as a PE risk stratification method. Elevated body mass index, maternal age extremes and Afro-American ethnicity are associated with a higher risk of PE [7]. Some diseases such as diabetes and chronic hypertension also significantly increase the risk [8]. The patients that present these conditions are the ones who will most benefit from a satisfactory and specific level of care, once the risk of developing PE in this groups rises threefold, reaching a PE prevalence of 45% [3]. Preeclampsia is essentially an endothelial disease [9, 10]. Progressive endothelial dysfunction leads to arterial hypertension, glomerular lesion, hepatic failure, and cerebral edema
LINFADENITE CASEOSA EM REBANHOS OVINOS NO ESTADO DE MINAS GERAIS, BRASIL: PREVALêNCIA E INFORMA ES DE MANEJO
Alessandro de Sá Guimares,Núbia Seyffert,Aurora Maria Guimares Gouveia,Andrey Pereira Lage
Ciência Animal Brasileira , 2009,
Abstract:
Hipoventila??o relacionada ao sono
Togeiro, Sonia Maria Guimares Pereira;Fontes, Francisco Hora;
Jornal Brasileiro de Pneumologia , 2010, DOI: 10.1590/S1806-37132010001400013
Abstract: sleep hypoventilation is seen in patients with neuromuscular disease, as well as in those with obesity hypoventilation syndrome (ohs), which is defined as the combination of obesity, chronic hypercapnia, and hypoxemia during wakefulness that is aggravated during sleep. in 90% of cases, ohs is accompanied by obstructive sleep apnea. the diagnosis of ohs is based on hypoventilation and pulmonary hypertension that cannot be explained by alterations in pulmonary function. the mortality of patients with ohs is greater than is that of obese patients without hypoventilation. the principal neuromuscular diseases associated with ohs are the muscular dystrophies. the progression to chronic respiratory failure results from respiratory muscle weakness and impaired airway secretion clearance, causing atelectasis and pneumonia. with a decrease of greater than 50% in respiratory muscle strength, there is a reduction in vc. cough peak flow < 160 l/min is associated with impaired airway secretion clearance, and values near 270 l/min indicate the need for assisted cough techniques. obstructive sleep apnea usually worsens sleep hypoventilation. noninvasive ventilation during sleep can improve survival, symptoms, and hypoventilation during wakefulness, as well as being able to improve pulmonary function in patients with neuromuscular disease. patients with ohs can require oxygen therapy.
Métodos diagnósticos nos distúrbios do sono
Togeiro, S?nia Maria Guimares Pereira;Smith, Anna Karla;
Revista Brasileira de Psiquiatria , 2005, DOI: 10.1590/S1516-44462005000500003
Abstract: the aim of this manuscript is to describe the procedures, recommendations, findings and value of the diagnostic methods used in sleep disorders including questionnaires, actigraph, polysomnography and multiple sleep latency test. specific questionnaires including evaluation of sleep quality , hyper somnolence, respiratory sleep disorders and sleep-wake rhythm are in general, used as a screening for the sleep disorders and indication of sleep studies. polysomnogram and multiple sleep latency test are considered the gold standard methods for the diagnosis of majority of sleep disorders and narcolepsy respectively. criteria for these disorders are reported bellow.
Manual de educa o infantil de 0 a 3 anos: uma abordagem reflexiva
Guimares Daniela de Oliveira,Leite Maria Isabel Ferraz Pereira
Educa??o & Sociedade , 2001,
Abstract:
A method to account small areas (soil profiles) using GIS/ Método para quantificar pequenas áreas (perfil do solo) utilizando SIG
Osvaldo Coelho Pereira Neto,Maria de Fátima Guimares
Semina : Ciências Agrárias , 2005,
Abstract: Geographic Information System – GIS is a technology developed to generate and to analyze spatial information on several thematic areas. This work provides a method to generate and to quantify small extension areas, like morphological homogeneous units (MHU) of a soil cultural profile, using the software Arcview8. The MHU were easily identified and their areas quantified by depth level. O Sistema de Informa o Geográfica - SIG é uma tecnologia que muito auxilia a confec o e análise de mapas do espa o físico-territorial e ambiental. Este trabalho visa propor um método para quantificar áreas de tamanho pequeno, como as unidades morfologicamente homogêneas (UMH) de um perfil cultural do solo, utilizando o programa computacional Arcview8. As UMH′s foram facilmente identificadas e suas áreas quantificadas por profundidade.
Decomposition of the interaction of common black bean group genotypes with the environment  [PDF]
Paula Pereira Torga, Patrícia Guimares Santos Melo, Helton Santos Pereira, Luis Cláudio de Faria, Maria José Del Peloso, Leonardo Cunha Melo
Agricultural Sciences (AS) , 2013, DOI: 10.4236/as.2013.412092
Abstract:

The purpose of this paper was to assess which environmental factor(s) (location, sowing season or years) in the common black bean genotypes interaction was more expressive and to verify the existence of genotypes with broad and/or specific adaptations to sowing season. Data of grain yield of thirteen genotypes were tested in twelve trials of value of cultivation and use during 2003 and 2004 in the south-central region of Brazil. Analyses of variance were performed with the decomposition of genotypes × environments interaction, which allowed a partial isolation of factors, and subsequently, eight trials were used which allowed a complete isolation of factors. The most important interactions were genotypes × years (R2 = 2.5%) and genotypes × locations (R2 = 1.9%), while genotypes × sowing seasons was the least important (R2 = 1.4%). Thus, it is more important to evaluate the genotypes in different locations and years than at different seasons. Most genotypes showed wide adaptation, but some lines showed strong specific adaptation.

Reliability of the interpretation of coronary angiography by the simple visual method
Guimares Jorge Augusto Nunes,Victor Edgar Guimares,Leite Maria do Rosário de Britto,Gomes José Maria Pereira
Arquivos Brasileiros de Cardiologia , 2000,
Abstract: OBJECTIVE: Evaluation of inter and intraobserver reproducibility of by the visual method interpretation of cineangiogram in a clinically based context. METHODS: Five interventional cardiologists analyzed 11 segments of 8 coronary cineangiograms at a two month apart sessions. The percent luminal reduction by the lesions were analyzed by two different classifications: in one (A) the lesions were graded in 0% = absent, 1-50% = mild, 51 - 69 = moderate, and > or = 70% = severe; the other classification (B) was a dichotomic one : <70% = nonsignificant and > or = 70%=significant lesions. The agreement were measured by the kappa (k) index. RESULTS: Interobserver agreement was moderate for classification A (1st measurement, k = 0.36 -- 0.63, k m = 0.49; 2nd measurement, k = 0.39-0.68, k m = 0.52) and good for classification B (1st measurement, k = 0.55-0.73, k m = 0.63; 2nd measurement, k = 0.37-0.82, k m = 0.61). Intraobserver levels of agreement were k = 0.57-0.95 for classification A and 0.62-1.0 for classification B. CONCLUSION: The higher level of reproducibility obtained by adopting the dichotomous criteria usually considered for ischemic limits demonstrates that in the present clinical context, the reliability of the simple visual method is adequate for the identification of patients with clinically significant lesions and candidates for myocardial revascularization procedures.
EFFECT OF BORN SEASON ON FREQUENCE OF CALVES SEROPOSITIVE FOR Anaplasma marginale AND Babesia bovis IN REGION SOUTHERN OF THE MINAS GERAIS STATE, BRAZIL EFEITO DA ESTA O DE NASCIMENTO SOBRE A FREQUêNCIA DE BEZERRAS SOROPOSITIVAS PARA Anaplasma marginale E Babesia bovis NA REGI O SUL DE MINAS GERAIS, BRASIL
Míriam Andrade Pereira,Antonio Marcos Guimares,Christiane Maria Barcellos Magalh?es Rocha
Ciência Animal Brasileira , 2009,
Abstract: The objective of this study was to determine the frequency of natural infections by Anaplasma marginale and Babesia bovis in female dairy calves been in the dry (April the August) and rainy seasons (September the March), in two dairy farms (Limeira and Bocaina) located in the Lavras municipality, Southern Region of the Minas Gerais State, Brazil. Were performed blood smears and serology by mean of the test of indirect fluorescent antibody test (IFAT). In the determination of the primary infection was observed a average of 60.8 days of age for A. marginale. In the Limeira farm there was no significant influence of birth season on the average of age in calves infected for A. marginale (p>0.05). For the Bocaina farm the average of age for of the primary infection for A. marginale was higher in the calves born in the dry season (p<0.05). The calves submitted the IFAT, in these two farms, presented 93.7% and 96.7% of specific anti-A. marginale and anti-B. bovis antibodies, respectively. The high frequency of dairy calves seropositive allowed the characterization the two farms as enzootic stability high for A. marginale and B. bovis, with risk low of outbreaks of anaplasmosis and babesiosis, independently of born season of calves. KEY WORDS: Anaplasmosis, babesiosis, cattle, indirect fluorescent antibody test. O objetivo deste estudo foi determinar a frequência de infec es naturais por Anaplasma marginale e Babesia bovis em bezerras leiteiras nascidas nas esta es seca (abril a agosto) ou chuvosa (setembro a mar o), em duas fazendas (Limeira e Bocaina) localizadas no município de Lavras, regi o Sul de Minas Gerais. Desenvolveram-se esfrega os sanguíneos e sorologia por meio da rea o de imunofluorescência indireta (RIFI). O período médio global da primoinfec o para A. marginale, determinado por meio de esfrega os sanguíneos, foi de 60,8 dias de idade. Na fazenda Limeira, a média de idade das bezerras infectadas por A. marginale n o sofreu influência da esta o de nascimento (p>0,05). Na fazenda Bocaina, a média de idade da primoinfec o para A. marginale foi maior para as bezerras nascidas no período seco (p<0,05). Para as bezerras submetidas à RIFI nas fazendas Limeira e Bocaina a frequência média global de animais reagentes para A. marginale e B. bovis, em ambas as esta es de nascimento, foi 93,7% e 96,7%, respectivamente. A alta frequência de bezerras soropositivas caracteriza as duas propriedades leiteiras como de elevada estabilidade enzoótica para A. marginale e B. bovis, com baixo risco de ocorrer surtos de anaplasmose ou babesiose, independentement
Semen quality and concentration of soluble proteins in the seminal plasma of Alpine bucks Semen quality and concentration of soluble proteins in the seminal plasma of Alpine bucks
Leonardo Franco Martins,Maria Cristina Baracat-Pereira,José Domingos Guimares,Simone Eliza Facione Guimares
Revista Brasileira de Saúde e Produ??o Animal , 2010,
Abstract: It was aimed to study the in vitro seminal quality analyzed by complementary tests and to compare them with physical, morphological and biochemical aspects of male goat semen of the Alpine breed. This experiment took place at the Federal University of Vi osa, situated at 20o45’ S latitude and 42o51’ W longitude, Southwest of Brazil. It was done during the summer months of January and February, and three adult male goats of the Alpine breed were used in intensive conditions. The semen was collected by artificial vagina method. In all semen samples (45 ejaculates), after the physical and morphological analysis, the hiposmotic test was done. In 24 ejaculates, it were done thermo-resistance test, and in 21 ejaculates it were determined the concentration of total soluble proteins in seminal plasma. The male goats presented difference in the semen physical and morphological aspects, in the hiposmotic test and thermo-resistance test, but they did not presented difference in total soluble proteins concentration in seminal plasma. Results of the slow thermo-resistance test and hiposmotic test were positively correlated (r = 0.60). It was concluded, according to our results, that the concentration of total soluble proteins in seminal plasma can not be used as a parameter to predict the seminal quality of Alpine bucks. It was aimed to study the in vitro seminal quality analyzed by complementary tests and to compare them with physical, morphological and biochemical aspects of male goat semen of the Alpine breed. This experiment took place at the Federal University of Vi osa, situated at 20o45’ S latitude and 42o51’ W longitude, Southwest of Brazil. It was done during the summer months of January and February, and three adult male goats of the Alpine breed were used in intensive conditions. The semen was collected by artificial vagina method. In all semen samples (45 ejaculates), after the physical and morphological analysis, the hiposmotic test was done. In 24 ejaculates, it were done thermo-resistance test, and in 21 ejaculates it were determined the concentration of total soluble proteins in seminal plasma. The male goats presented difference in the semen physical and morphological aspects, in the hiposmotic test and thermo-resistance test, but they did not presented difference in total soluble proteins concentration in seminal plasma. Results of the slow thermo-resistance test and hiposmotic test were positively correlated (r = 0.60). It was concluded, according to our results, that the concentration of total soluble proteins in seminal plasma can not be used as
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