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Search Results: 1 - 10 of 141606 matches for " Valéria Rodrigues;Leit?o-Lima "
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Mistura de sementes de Brachiaria brizantha com fertilizante NPK
Lima, Eduardo do Valle;Tavares, José Cláudio de Sousa;Azevedo, Valéria Rodrigues;Leito-Lima, Patrícia da Silva;
Ciência Rural , 2010, DOI: 10.1590/S0103-84782010005000003
Abstract: information is contradictory as to the time brachiaria brizantha seeds can remain mixed with the npk fertilizer without causing poorly formed stands. therefore, the objective of this research was to study the effect of contact times of npk granular fertilizer (04-14-08 rate) with seeds of this forage on physiological quality (germination and vigor). a completely randomized design with four replicates was employed. an analysis of variance was conducted and the means were compared by tukey test at 5%. polynomial regression analyses were also performed, and equations were fitted. a significant effect was observed in all variables. the water content and electric conductivity of seeds increased as contact time with the fertilizer increased, while decreases were observed in germination percentage, first count, emergence, and emergence velocity index. a linear behavior was observed for the variables. consequently, seeds can be mixed with npk fertilizer as long as seeding is performed immediately afterwards, thus reducing damages to the physiological quality of the forage seeds (germination and vigor). in practice, it is recommended that b. brizantha seeds should be mixed with npk at quantities that can be seeded within 12 hours from mixing, at most.
Superfosfato triplo como via de distribui??o de sementes de Brachiaria brizantha para renova??o de pastagens na Amaz?nia
Lima, Eduardo do Valle;Tavares, José Cláudio de Sousa;Silva, Eliane Carvalho;Leito-Lima, Patrícia da Silva;
Revista Brasileira de Zootecnia , 2009, DOI: 10.1590/S1516-35982009000500003
Abstract: this study aimed to determine the effect of 10 contact times of a granular triple superphosphate chemical fertilizer with brachiaria brizantha, cv. marandu seeds on seed physiological quality (germination and vigor). contact times were: 0, 3, 6, 12, 24, 36, 48, 72, 96, and 120 hours. a completely randomized experimental design was used, with four replicates, under both laboratory and nursery conditions. in all variables studied, a significant effect of the treatments employed was observed: as contact time with the fertilizer increased, the phosphoric acid residue from the fertilizer probably had a direct and negative effect on germination and vigor, as observed by germination, first count, water content, electric conductivity, emergence, and emergence velocity index results. therefore, in order to obtain an adequate population of plants, the forage seeds can be mixed with the triple superphosphate since seeding is performed immediately, reducing physiological quality losses.
Efeitos da perda rápida de peso em atletas de combate Efectos de la perda rápida de peso em atletas de combate Effects of rapid weight loss in combat athletes
Leandro de Loren?o-Lima,Sandro Massao Hirabara
Revista Brasileira de Ciências do Esporte , 2013,
Abstract: Em esportes de combate, a estratégia de perda rápida de peso é frequentemente utilizada com o propósito de obter vantagens sobre o oponente. Nesse processo, a redu o de peso é extremamente acentuada com curta dura o, o que pode provocar uma série de desordens fisiológicas, psicológicas e também quanto ao desempenho esportivo. Sendo assim, a presente revis o teve como objetivo compilar os principais achados quanto aos efeitos adversos devido à perda rápida de peso, tendo em vista o embasamento científico aos profissionais envolvidos com atletas de combate. Os estudos demonstram um grande número de atletas que se engajam em programas com tal propósito, repetindo inúmeras vezes ao longo da vida. Entretanto, os potenciais riscos à saúde causados por tal prática usualmente n o s o levados em considera o. Com base nos estudos apresentados, a perda rápida de peso deve ser avaliada cuidadosamente por educadores físicos, médicos, nutricionistas e demais profissionais da área da saúde, considerando os vários efeitos adversos que essa prática pode resultar. é importante ressaltar que a preserva o da integridade e do bem-estar dos atletas envolvidos pode ser fator determinante na decis o de um combate. En los deportes de combate, la estrategia de rápida pérdida de peso es a menudo utilizada para el fin de obtener ventajas sobre su oponente. Lo proceso de reducción de peso es muy fuerte con una corta duración, que puede causar una variedad de trastornos fisiológicos, psicológicos, así como para el desempe o deportivo. Por lo tanto, esta revisión pretende recopilar las principales conclusiones sobre los efectos adversos debido a la pérdida rápida de peso, en vista de la base científica para los profesionales que trabajam com atletas de combate. Varios estudios muestran un gran número de atletas que participan en los programas para ese fin, repitiendo varias veces por toda la vida. Sin embargo, los riesgos potenciales para la salud causados por esta práctica no se suele tener en cuenta. Sobre la base de los estudios presentados, la pérdida rápida de peso debe ser evaluado cuidadosamente por los educadores físicos, médicos, nutricionistas y otros profesionales de la salud, teniendo en cuenta los efectos adversos diferentes que esto puede resultar. Es importante destacar que la preservación de la integridad y el bienestar de los atletas que participan pueden ser un factor determinante en la decisión de un concurso. In combat sports, the rapid weight loss is a strategy often used for the purpose of gaining an advantage over the opponent. In this process, the weight re
Campo elétrico pulsado
Binoti, Mirella Lima;Ramos, Afonso Mota;Teixeira, Luciano José Quint?o;Stringheta, Paulo Cesar;Minim, Valéria Rodrigues de Paula;Pirozi, M?nica Ribeiro;
Ciência Rural , 2012, DOI: 10.1590/S0103-84782012005000025
Abstract: pulsed electric fields of high intensity (hipef) is a non-thermal food conservation to replace traditional thermal pasteurization. compared to thermal processing, the hipef as well as being effective in removing microorganisms and inactivate enzymes also minimize the loss of flavor, color, texture, nutrients and labile components of food. the aim of this work was to gather bibliographic data current hipef on the subject, covering: experimental setup, effects of dielectric breakdown of food, effect on microorganisms, enzymes and constituents of food. the data found in the literature indicate treatment of hipef as a promising alternative for food conservation and it could be used as a single technology or in addition to thermal processing.
Occurrence of Nontuberculous Mycobacterial Pulmonary Infection in an Endemic Area of Tuberculosis
Ana Roberta Fusco da Costa ,Joseph O. Falkinham III,Maria Luiza Lopes,Adriana Rodrigues Barretto,Jo?o Soares Felicio,Lúcia Helena Messias Sales,Jeann Ricardo da Costa Bahia,Emilyn Costa Concei??o,Karla Valéria Batista Lima
PLOS Neglected Tropical Diseases , 2013, DOI: 10.1371/journal.pntd.0002340
Abstract: The majority of investigations of the epidemiology of nontuberculous mycobacteria (NTM) have focused on highly developed nations with a low prevalence of tuberculosis. In contrast, the Para state of north Brazil represents an area of high tuberculosis prevalence and increasing NTM incidence. Toward the goal of understanding the dynamics of infection by all Mycobacterium species, we report patient characteristics and the identification of NTM strains isolated from sputum samples from patients that were residents of Para, a state in the Amazon region, Northern of Brazil, over the period January 2010 through December 2011 (2 years). The 29 NTM patients comprised 13.5% of positive mycobacterial cultures over the 2-year period. A major risk factor for NTM pulmonary disease was previous tuberculosis (76%). Further, the average age of NTM patients (52 years) was significantly higher than that of tuberculosis patients (39 years) and more were female (72.4% vs. 37.4%). Unlike other Brazilian states, NTM pulmonary patients in Para were infected with a different spectrum of mycobacteria; primarily the rapidly growing Mycobacterium massiliense and Mycobacterium simiae complex.
Relato de experiência: o uso de simula??es no processo de ensino-aprendizagem em medicina
Varga, Cássia Regina Rodrigues;Almeida, Volia de Carvalho;Germano, Carla Maria Ramos;Melo, Débora Gusm?o;Chachá, Silvana Gama Florêncio;Souto, Bernardino Geraldo Alves;Fontanella, Bruno José Barcellos;Lima, Valéria Vernaschi;
Revista Brasileira de Educa??o Médica , 2009, DOI: 10.1590/S0100-55022009000200018
Abstract: this article reports on a two-year experience with professional practice simulations (pps) as a teaching/learning process in the undergraduate medical course at the federal university in sao carlos, brazil. this medical school's pedagogical approach is based on the constructivist conception of learning and the premise that learning is not reproducing reality, but being capable of elaborating a personal representation of reality and its contents. from this perspective, after experiencing simulated situations, students are encouraged to re-signify their previous scope of information, building new significant knowledge. in this educational unit (pps), students interact with simulated patients and have the opportunity to learn by doing and analyzing their mistakes. while students reflect on their errors, they can identify the gaps in their knowledge and cognitively substantiate their skills. teachers interact with students as evaluators, facilitators, or consultants. this pedagogical strategy can be a powerful tool for developing clinical skills.
Effects of acute creatine supplementation on iron homeostasis and uric acid-based antioxidant capacity of plasma after wingate test
Marcelo P Barros, Douglas Ganini, Leandro Loren?o-Lima, Chrislaine O Soares, Benedito Pereira, Etelvino JH Bechara, Leonardo R Silveira, Rui Curi, Tacito P Souza-Junior
Journal of the International Society of Sports Nutrition , 2012, DOI: 10.1186/1550-2783-9-25
Abstract: Maximum anaerobic power was improved by acute creatine supplementation (10.5?%), but it was accompanied by a 2.4-fold increase in pro-oxidant free iron ions in the plasma. However, potential iron-driven oxidative insult was adequately counterbalanced by proportional increases in antioxidant ferric-reducing activity in plasma (FRAP), leading to unaltered lipid peroxidation levels. Interestingly, the FRAP index, found to be highly dependent on uric acid levels in the placebo group, also had an additional contribution from other circulating metabolites in creatine-fed subjects.Our data suggest that acute creatine supplementation improved the anaerobic performance of athletes and limited short-term oxidative insults, since creatine-induced iron overload was efficiently circumvented by acquired FRAP capacity attributed to: overproduction of uric acid in energy-depleted muscles (as an end-product of purine metabolism and a powerful iron chelating agent) and inherent antioxidant activity of creatine.
Progressive muscular dystrophy: Duchenne type. Controversies of the kinesitherapy treatment
Leito, Ana Valéria de Araujo;Duro, Luiz Alves;Penque, Glória Maria Cardoso de Andrade;
Sao Paulo Medical Journal , 1995, DOI: 10.1590/S1516-31801995000500007
Abstract: the authors carried out a study of children with progressive muscular dystrophy of duchenne type (dmd), giving special attention to physiatrical follow-up, having in mind that the practice of exercises has been debated very much in the specialized literature. the goal of this study is to try to settle the limits for the utilization of kinesitherapy which should be applied only in specific situations, such as: after skeletal muscular trauma or when the respiratory system is at risk. in this situation the physiatrical procedure would be to restrict physical activity, with early use of wheelchairs and the exclusion of the use of orthoses for orthostatism. dmd, at present, has been considered a result of duplication (60%), deletion (5 to 6%) or point mutations at gen xp21 (zatz, 1994), that codifies a protein called dystrophin ( hoffman et al., 1987). dystrophin is a cytoskeletal sarcolemmic protein that constitutes about .002% of the total protein of the muscle, present in skeletal fibers concentrated in muscle tendinous joints, which supplies mechanical reinforcement to the surface of the membrane during stretching and shortening physical activity. this protein is absent in dmd cases, wherefore, the sarcolemma undergoes a segmentary necrosis losing its contractile property during eccentric and concentric physical activity. the importance of physiatrical follow-up for dmd patients is to avoid deformities and tendon shortening, to ameliorate the patient's quality of life, to provide respiratory assistance and general couseling to members of the patient's family. the objective of this study is to try to clarify the risks and possibilities of kinesitherapy applied to dmd cases.
Crescimento de mudas micropropagadas da bananeira cv. Nanic o, em diferentes substratos e fontes de fertilizante = Growth of micropropagated cavendish banana seedlings in different substrates and fertilizer sources
Edson Shigueaki Nomura,Juliana Domingues Lima,Valéria Augusta Garcia,Domingos Sávio Rodrigues
Acta Scientiarum : Agronomy , 2008,
Abstract: Com objetivo de avaliar o efeito de diferentes substratos combinados a fontes de fertilizantes no crescimento de mudas de bananeira micropropagadas cv. Nanic o (Musa spp. AAA), foi instalado um experimento em blocos casualizados, no esquema fatorial 5 x 3,com quatro repeti es. Os substratos utilizados foram: S1 - Terra de subsolo + casca de arroz carbonizada + Rendmax Floreira ; S2 - Terra de subsolo + casca de arroz carbonizada + Organifol ; S3 - Terra de subsolo + casca de arroz carbonizada + Organifol 9% SiO; S4 - Technes Vivatto ; S5 - Areia grossa + casca de arroz carbonizada+ Rendmax Floreira . As fontes de fertilizantes foram: SA - sem adubo; LL - adubo de libera o lenta - Osmocote 3M 14-14-14 (5,0 kg m-3) misturado ao substrato; e LN - adubo de libera o normal, 14-14-14 (7,5 g muda-1) aplicado em cobertura. Foram determinados a altura, o diametro do colo, o número de folhas, a área foliar e a matéria seca das plantas. Com base nas diferen as de crescimento, recomenda-se a utiliza o dos substratos S1, S2, S3 e S4, com adi o de fertilizante 14-14-14, com libera o lenta (5,0 kg m-3) ou normal (7,5 g muda-1) de nutrientes. With the objective of evaluating the effect of different substrates combined with fertilizers in the growth of micropropagated seedlings of Cavendish banana (Musa spp. AAA), an experiment was conducted in a randomized block design, in a 5 x 3 factorial scheme, with four repetitions. The substrates used were: S1 – subsoil land + carbonized rice hull + Rendmax Floreira ; S2 - subsoil land + carbonizedrice hull + Organifol ; S3 - subsoil land + carbonized rice hull + Organifol 9% SiO; S4 - Technes Vivatto ; S5 - thick sand + carbonized rice hull + Rendmax Floreira . The fertilizer sources were: SA – without fertilizer; LL – slow-release fertilizer - Osmocote 3M 14-14-14 (5.0 kg m-3) mixed in the substrate; and LN – normal-release fertilizer, 14-14-14 (7.5 g seedling-1) applied in covering. The height, collar diameter, leaf number, leaf area anddry matter were determined. Based on the differences of growth, substrates S1, S2, S3 and S4 can be used with fertilizer 14-14-14, with slow (5.0 kg m-3) or normal (7.5 g seedling-1) release of nutrients.
Uso da geoestatística para avaliar a capta??o automática dos níveis de press?o sonora em instala??es de creche para suínos
Borges, Giselle;Miranda, Kesia O. da S.;Rodrigues, Valéria C.;Risi, Natalia;
Engenharia Agrícola , 2010, DOI: 10.1590/S0100-69162010000300002
Abstract: the objective of this work was to study the influence of decibelimeters distribution in the automatic acquisition of sound pressure levels in pig nursery facilities. the experiment was conducted in a nursering room of a commercial swine's facility situated in the city of monte mor, state of s?o paulo, brazil. the room was divided in ten identical quadrants and the geometrical center of each quadrant was installed the decibelimeters. geostatistics was used to evaluate the spatial dependence among the decibelimeters and to predict sound pressure levels in the places that they were not installed. data were analyzed by the correlation among decibelimeters and through geostatistics, being possible to affirm that there was no spatial dependence between recording points of the sound pressure levels. through interpolation of registration points using kriging process, was possible to predict sound pressure levels in places with no decibelimeters inside the facility. it was verified homogeneity in the sound pressure levels propagation inside the facility, concluding that to the evaluated environment, the use of only one equipment to the automatic registration of sound pressure levels is enough.
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