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Search Results: 1 - 10 of 191894 matches for " Martins Dias de;Guimar?es "
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Bionomia de mosquitos (Diptera: Culicidae) em áreas da Mata Atlantica no município de Itaguaí, estado do Rio de janeiro, Brasil: I. Frequência intra, peri e extradomiciliar
Guimares, Anthony érico;Motta, Monique de Albuquerque;Arlé, Monique;Machado, Roberto Martins;Goncalves, Luciene Dias;
Memórias do Instituto Oswaldo Cruz , 1989, DOI: 10.1590/S0074-02761989000800044
Abstract: along 24 consecutive months, from january 1984 to december 1986, mosquito captures were performed in a rural area of said municipality. aiming to evaluate the comparative frequency of the mosquito species inside houses and in the immediate vicinity and far from houses, the captures were made in two types of domiciles - one permanently and the other only sporadically inhabited - as well as in surrounding woods. variations in temperature, relative humidity and rainfall were locally recorded. a tendency for domiciliation became evident by the presence of aedes scapularis in the human domiciles, mainly in those permantely inhabited. culex quinquefasciatus showed to be adapted to live with humans also in rural areas, in which, in some instances, insecticides had to be used to keep in under control. such observations, mainly in terms of ae. scapularis, reinforce the possibility of those mosquitoes, under favourable conditions, becoming carries of arboviroses to humans in rural environments.
Prepara??o de N-alquil derivados do 1-bromo-2,4-dinitrobenzeno e do 1-cloro-2-nitrobenzeno: Uma alternativa às aulas práticas de substitui??o nucleofílica aromática
Dias, Ayres Guimares;Pereira, Felipe Martins Alves;Soares, Renato de Oliveira;
Química Nova , 2008, DOI: 10.1590/S0100-40422008000700049
Abstract: preparation of the title compounds are described as an alternative nucleophilic aromatic substitution for practices in the graduate laboratory. the low toxicity and disponibility of the reagents make a suitable procedure approach to experiments regarding this aromatic reaction.
Compaction caused by mechanized operations in a Red- Yellow Latosol cultivated with coffee over time Compacta o causada pelas opera es mecanizadas em um Latossolo Vermelho-Amarelo cultivado com cafeeiros ao longo do tempo
Paula Cristina Caruana Martins,Moacir de Souza Dias Junior,Maria Luiza de Carvalho Andrade,Paulo Tácito Gontijo Guimares
Ciência e Agrotecnologia , 2012, DOI: 10.1590/s1413-70542012000400002
Abstract: The main source of soil structure degradation in coffee plantation is the machinery traffic because these operations may cause soil compaction affecting the crop development. This study aimed to generate the load-bearing capacity models for a Red-Yellow Latosol and to determine through the use of these models the soil susceptibility to compaction of the coffee plantation due to the implantation time and the compaction caused by the machinery traffic on the traffic lines located at the top and bottom of the ground. This study was carried out in the EPAMIG Experimental Farm, located at Três Pontas, MG, in coffee plantations (Coffee arabica L.) with 2, 7, 18 and 33 years of establishment. To obtain the load-bearing capacity models, 12 undisturbed soil samples were randomly collected in the 0-3 cm and 15-18 cm layers in the position between the rows for each establishment time of the coffee plantation. It was also randomly collected 10 undisturbed soil samples for each establishment time of the coffee plantations along the tractor traffic lines located at the top and bottom of the ground. These undisturbed soil samples were used in the uniaxial compression tests. The use of the load-bearing capacity models allow to identify the soil susceptibility to compaction due to the implementation time of the coffee plantation and the compaction caused by the machinery traffic on the traffic lines located at the top and bottom of the ground. The percentage of compacted soil samples increases with the establishment time in the layer of 15-18 cm. A principal fonte de degrada o da estrutura do solo na explora o cafeeira é o tráfego de máquinas, pois essas opera es podem causar compacta o do solo, afetando o desenvolvimento da cultura. Neste estudo, objetivou-se gerar os modelos de capacidade de suporte de carga para um Latossolo Vermelho-Amarelo e determinar por meio do uso desses modelos a suscetibilidade à compacta o do solo, pelo tempo de implanta o da lavoura cafeeira e os impactos causados pelo tráfego das opera es mecanizadas nas linhas de tráfego localizadas na parte de cima e de baixo do terreno. Este estudo foi realizado na Fazenda Experimental da EPAMIG, situada em Três Pontas, MG, em lavouras cafeeiras (Coffee arabica L.) com 2, 7, 18 e 33 anos de implanta o. Para a obten o dos modelos de capacidade de suporte de carga, 12 amostras indeformadas de solo foram coletadas aleatoriamente nas camadas 0-3 e 15-18 cm no centro das entrelinhas, para cada tempo de implanta o da lavoura cafeeira. Foram também coletadas aleatoriamente 10 amostras indeformadas pa
Effects of L-alanyl-glutamine upon the blood and kidney biochemical parameters in the rat hind limb model of ischemia/reperfusion
Alves, Marcos Antonio;Guimares, Sérgio Botelho;Dias, Daniel Aguiar;Vasconcelos, Paulo Roberto Cavalcante de;Coelho, Vicente de Paulo Martins;Vasconcelos, Paulo Roberto Leit?o de;
Acta Cirurgica Brasileira , 2005, DOI: 10.1590/S0102-86502005000600009
Abstract: purpose: to investigate the effects of l-alanyl-glutamine (ala-gln) intragastric administration upon blood and kidney metabolic parameters alterations in rats subjected to ischemia/reperfusion of hind limb. methods: forty-eight male rats were randomized in 2 groups offered via gavage either saline 2.0 ml (g-1) or ala-gln solution 0.75 mgkg-1(g-2) once a day at 7 am during 7 days. one-hour after the last gavage (day 7) all rats were submitted to ether anesthesia, laparotomy and clamping of the left iliac artery for 3 h. kidney and blood samples were collected at the end of ischemic period (3h) and at 1-3-6h during reperfusion period for metabolites (pyruvate, lactate, glucose and ketone bodies) enzymatic analysis. atp was also assayed in kidney samples. results: lactacemia and ketonemia were significantly increased in ala-gln treated rats during reperfusion. kidney pyruvate concentrations were significantly decreased and tissue lactate concentrations were significantly increased during reperfusion (1h and 3h) in g-2 rats compared with respective controls. glucose, atp and ketone bodies concentrations were significantly increased in the kidney in l-ala-gln treated rats at 3 hours after reperfusion as compared to respective controls. conclusions: unilateral hind limb ischemia in l-ala-gln pre-treated rats may induce increased lactacemia and increased kidney lactate concentrations, indicating increased glycolytic activity in renal medulla and in other peripheral tissues. higher ketonemia during reperfusion may reflect a possible increase in ketogenesis due to lower insulin plasma concentration hepatic signaling as a result of increased glucose oxidation in peripheral tissues, caused by the intra-gastric administration of glutamine dipeptide, suggesting also decreased insulin resistance.
Comparative study of suture and cyanoacrylates in skin closure of rats
Souza, Sandro Cilindro de;Oliveira, Washington Luiz de;Soares, Dario Fernando de Oliveira Santos;Briglia, Carlos Henrique;Athanázio, Paulo Roberto;Cerqueira, Martins Dias de;Guimares, Pedro Hamilton;Carreiro, Mário Castro;
Acta Cirurgica Brasileira , 2007, DOI: 10.1590/S0102-86502007000400013
Abstract: purpose: to compare the biocompatibility of ethyl-cyanoacrylate (eca) and octylcyanoacrylate (oca) wound closures to sutures in rat skin. methods: twenty-four male wistar rats were subjected to three incisions which were closed using eca, oca or sutures . rats were divided into four groups which received biopsies on the 3rd, 7th, 14th or 21st post-operative days. necrosis, inflammation, dermatitis, infection, dehiscence, cicatricial enlargement and costs were examined; the histopathology evaluated was epithelialization, deep openings, foreign substance reaction, residues of synthesis material, fibrosis, inflammation, dehiscence and necrosis. results: the tissue adhesives presented the largest dehiscence levels, and eca the lowest cost while the other measures were similar. regarding histopathology, deep openings were more common with oca and granulomas were most frequently obtained with eca. the two tissue adhesives produces less inflammation than the inicial suture from post-operative day 7, while eca and oca cause similar inflammatory reactions. eca did not differ significantly from oca and sutures on other measures. conclusion: eca was well tolerated in this study and did not induce necrosis, allergic reactions or infections, presenting several advantages in relation to oca and sutures, including lower costs and fewer complications.
A??o da fluoxetina sobre a dor aguda em ratos submetidos à constri??o do nervo ciático
Salinas, Luis Eduardo Guimares;Martins, Marcos Francisco Dias;Santos, Adriana Aparecida de Souza dos;Pires, Oscar César;Constantino, Elton;Posso, Irimar de Paula;Pelógia, Naira Correia Cusma;
Revista Dor , 2012, DOI: 10.1590/S1806-00132012000100011
Abstract: background and objectives: selective serotonin reuptake inhibitors, such as fluoxetine, have been suggested as alternative to tricyclic antidepressants to treat chronic pain, due to the lower incidence of side effects. this study aimed at observing the effects of serotonin on acute pain modulation, by the administration of fluoxetine through the formalin test in rats previously submitted to sciatic nerve constriction. method: we used 24 male wistar rats, with mean weight of 300 g and distributed in 5 groups: 1. control untreated; 2. sciatic nerve constriction; 3. sciatic nerve constriction and treated with 5 mg.kg-1.day oral fluoxetine for 15 days; 4. sciatic nerve constriction treated with 5 mg.kg-1 oral reserpine every 72 hours and with 5 mg.kg-1.day oral fluoxetine for 15 days; 5. sciatic nerve constriction treated with 5 mg.kg-1 oral reserpine every 72 hours for 15 days. all animals were submitted to modified formalin test after treatment. results: response in the phase i, intermediate and phase ii formalin test was not changed by sciatic nerve constriction. treatment with reserpine or fluoxetine has not interfered with first and intermediate formalin test phases in the groups submitted to sciatic nerve constriction. the number of flinches in the second formalin test phase has increased in animals treated with fluoxetine and has decreased in animals treated with reserpine. there has been decrease in the number of flinches in animals treated with the association reserpina and fluoxetine as compared to animals treated with fluoxetine alone. conclusion: fluoxetine has increased painful sensation after acute stimulation in rats submitted to sciatic nerve constriction, showing the algogenic action of the drug in this experimental model.
Leptin and insulin in the seminal plasma of zebu bulls in peripuberty
Souza, Fernando Andrade;Martins, Jorge André Matias;Vale Filho, Vicente Ribeiro do;Andrade, Venício José de;Ferreira, Marcos Brand?o Dias;Emerick, Lucas Luz;Pinto, Pablo Fabricio Bruno;Leite, Ticiano Guimares;
Revista Brasileira de Zootecnia , 2012, DOI: 10.1590/S1516-35982012000400013
Abstract: in order to determine the profile of leptin and insulin values in seminal plasma and their correlations with sperm patterns during the peripuberty, a total of 16 crossbred gyr dairy bulls were monitored from 60 days before to 60 days after puberty, separated into two groups, early and regular, according to the onset of puberty. hormone values were determined by radioimmunoassay after gel filtration in fast performance liquid chromatography and semen patterns, according to the brazilian college of animal reproduction. insulin concentrations in seminal plasma did not differ between groups, nor between the ages, with the pooling of the data showing average of 35.15±16.93, 36.60±26.21, 26.82±09.81, and 43.56±31.71 32.24±16.71 u/ml for the pubertal period of -60, -30, 0, +30 and +60 days, respectively. these values were not correlated with sperm parameters, but differed in the group of animals with the highest percentage of major defects (31.08±18.58 u/ml) compared with those with lower percentage of these sperm defects (40.01±25.37 u/ml). leptin was not correlated with sperm parameters and did not differ between groups or stage of sexual development, with concentrations of 23.10±10.43, 24.35±9.42, 22.41±9.90, 23.76±9.69 and 24.99±11.42 ng/ml for the periods of puberty aforementioned, respectively, after being grouped. these results demonstrated the binding of insulin to the structural quality of the sperm cell, and this hormone is indicated in andrologycal evaluation of future breeding soundness.
Petroleum Patent Used Such Monitoring Technological Like Innovation Process of Drilling Fluids with Xanthan Gum —World Panorama  [PDF]
Marco Antonio Martins de Oliveira, Cheila Gon?alves Mothé, Leandra Guimares de Oliveira
Engineering (ENG) , 2015, DOI: 10.4236/eng.2015.77036
Abstract: This paper aims to discuss the importance of patenting and publishing as an instrument of incentive to technological innovation in the petroleum chemistry area. The present study has examined the publications and the patent applications published from 1974 to 2014. A technological monitoring methodology for patents in drilling fluid with xanthan gum has been compared using profiles of patent application in the world, with emphasis on Industrial Property Databases available on the internet (INPI-Br, Derwent, Espacenet, Patent Scope and USPTO) with intention to assess the main inventors, applications, applications’ countries, the IPC classification, years of application and category of claims as well as discuss the importance of patents as a means of encouraging technological innovation of xanthan gum. The United States and China stand out both in relation to the publication of papers as well as in the amount of patent filing in scientific publications with the theme drilling fluid with additive xanthan gum classified by the authors’ country of origin. It is observed that Brazil and the US lead the ranking with 15 publications (about 23.1% of the total). Among the 72 institutions obtained as a result, both Petrobras SA and Universidade Federal do Rio de Janeiro, in Brazil, lead the world ranking, with 6 publications each; in relation to the areas of knowledge, it is observed that engineering stands out in the publication of papers and the areas of chemistry, engineering, energy fuels and polymer science are noticeable in numbers of patent applications. The analysis of patent filings in the periods proposed features a significant percentage associated with the classification C09K.
Excesso de peso e adiposidade central em adultos de Teresina-PI
Holanda, Lorena Guimares Martins;Martins, Maria do Carmo de Carvalho e;Souza Filho, Manoel Dias de;Carvalho, Cecília Maria Resende Gon?alves de;Assis, Regina Célia de;Leal, Lívia Maria Moura;Mesquita, Lorena Patrícia Leal;Costa, Emanuella Machado;
Revista da Associa??o Médica Brasileira , 2011, DOI: 10.1590/S0104-42302011000100016
Abstract: objective: to determine prevalence of overweight and abdominal fat in adult population in the urban area of teresina-pi. methods: cross-sectional study with probabilistic sample by conglomerates. the study evaluated 464 adults, 20 to 59 years of age living in the urban area of teresina-pi. nutritional status was classified by the body mass index (bmi) and abdominal fat accumulation was estimated according to waist circumference. the significance level was set at 5% (p<0.05). results: prevalence of overweight and obesity according to nutritional status based on bmi was, respectively, 30.0% and 7.7%. there was an increase in the proportion of overweight and obesity among men with progressively higher family income. highest rates of obesity were found among individuals 50 to 59 years of age with stable marriages and nonsmokers. no association was found between individual or family income and presence of abdominal fat in the population. conclusion: prevalence of overweight in the study population follows the brazilian trend. proportions of overweight and obesity were higher among men and increased with age. women and married persons showed a greater tendency for abdominal obesity.
Psychosocial Factors Involved in Absenteeism—A Qualitative Analysis in a Brazilian Context  [PDF]
Alessandro Vinicius de Paula, Ximena Christina de Carvalho Oliveira, Ana Alice Vilas Boas, Júlia de Moura Martins Guimares
Psychology (PSYCH) , 2014, DOI: 10.4236/psych.2014.58092
Abstract:

Work is a fundamental activity for human beings not only because it provides the benefit of a wage but also because it allows the subject to draw primitive anxieties that are evoked only in the frame of human-work relations. In Brazilian context, removed workers are often victims of prejudice beyond the organization space, triggering feelings of weakness and uselessness. The absence from work may also jeopardize both physical and mental health. Thus, this study aims to understand the psychosocial factors (social support, affect, coping skills and perception of future and health status) involved in absenteeism and the process of withdrawing work and its consequences on people’s lives. A qualitative approach was chosen for gathering and analyzing data. Four workers from different professional categories participated in this qualitative study. It was observed that stop working brought serious implications for the lives of investigated subjects, who reported feelings of estrangement, fear, emptiness, depression, helplessness and dependence. The most frequent difficulties in relation to absenteeism refer to the part of the tie break of social and financial issues. The main strategy for dealing with problems arising from job withdraws was to seek social support from friends and family. Regarding plans and the prospective, they experienced a critical period (immobilization), requiring a process of (re)adapting to the new situation ahead. Given the above, it is noteworthy to understand that the consequences of absenteeism or temporary withdrawing of labor become a necessary measure to preserve physical and mental health; a task open to interventions of work and organizational psychology.

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