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Search Results: 1 - 10 of 186481 matches for " Macedo Jefferson Luiz Vasconcello de "
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ANELAMENTO E áCIDO GIBERéLICO NA FRUTIFICA O DA UVA 'MARIA' SEM SEMENTES
Kalil Geovanita Paulino da Costa,Terra Maurilo Monteiro,Kalil Filho Antonio Nascimento,Macedo Jefferson Luiz Vasconcello de
Scientia Agricola , 1999,
Abstract: Este trabalho foi desenvolvido com o objetivo de avaliar a resposta do cultivar Maria (IAC 514-6) ao anelamento e à aplica o de ácido giberélico na concentra o de 200ppm, no início ou após o florescimento, para as características dos cachos, bagos e enga os. O experimento foi realizado em Jundiaí, SP, e o delineamento estatístico foi inteiramente casualizado, com doze tratamentos e cinco repeti es. N o foram detectados efeitos de época de anelamento ou de aplica o de ácido giberélico. Efeitos significativos do anelamento no tronco ou nos ramos e da aplica o do ácido giberélico ou de ambos os tratamentos foram detectados para as características estudadas. Os incrementos verificados para essas características foram semelhantes ao serem aplicados os fatores isoladamente ou em conjunto.
ANELAMENTO E áCIDO GIBERéLICO NA FRUTIFICA??O DA UVA 'MARIA' SEM SEMENTES
Kalil, Geovanita Paulino da Costa;Terra, Maurilo Monteiro;Kalil Filho, Antonio Nascimento;Macedo, Jefferson Luiz Vasconcello de;Pires, Erasmo José Paioli;
Scientia Agricola , 1999, DOI: 10.1590/S0103-90161999000200010
Abstract: this work was conducted to evaluate the response of grapevine cultivar maria (iac 514-6) to branches and trunk girdling at the beginning or after flowering, associated or not with gibberellic acid sprating (200ppm) on clusters, berries and raquis characteristics. the experiment was conducted at jundiaí, sp, brasil, in a complete randomized design, with 12 treatments and 5 replications. no effect of girdling time nor ga3 application were detected. significative effects of trunk or branche girdling and ga3 application or from both treatments together for all the characteristics evaluated of the berries, clusters and raquis were observed. the application of each treatment alone or in combination influenced grape quality in a similar manner.
Efeitos citotóxico, genotóxico e mutagênico da tintura de Matricaria chamomilla L. in vivo
Macedo Delarmelina,Juliana; Pimentel Batitucci,Maria do Carmo; de Oliveira Gon?alves,Jefferson Luiz;
Revista Cubana de Plantas Medicinales , 2012,
Abstract: introduction: matricaria chamomilla l. is one plant of asteraceae family, whose common name is white chamomille. its flowers have different substances with therapeutic properties for healing and prevention of various ailments, among them, gastrointestinal upset, inflammation, stress and hypertension. objectives: to in vivo evaluate the cytotoxic, genotoxic and mutagenic activity of matricaria chamomilla vegetal tincture, using the micronucleus assay in rodent bone marrow (n= 6/group) and the allium cepa l. test. methods: for the carrying out of micronucleaus assay, 6 experimental groups were formed and administered: cisplatin (positive control), 0.9 % saline solution (negative control), 64 % alcohol (solvent control drug), matricaria chamomilla tincture at 0,02 and 0,1 μl/g/d doses, equivalent to 20 and 100 drops daily, respectively, considering an adult (75 kg) and the above-clinical dose (400 μl/d). the animals were exposed to 5 days of treatment, and slaughtered on the sixth, with the exception of positive controls. as for the test in allium cepa, 5 experimental groups were determined, and administered distilled water (negative control), matricaria chamomilla in concentrations of 1 and 5 mg/ml and 64 % diluted alcohol in the same proportions as the tincture (solvent control drug 1 and 2). results: the results demonstrated that matricaria chamomilla tincture was neither mutagenic, genotoxic nor citotoxic at tested concentrations, with the exception of the above-clinical dose, which showed mutagenicity. conclusions: matricaria chamomile tincture when administered in concentrations proportional to those prescribed to humans, showed neither cytotoxicity nor mutagenicity in mice and just genotoxicity in allium cepa, paying attention to its careful use in high quantities.
Efeitos citotóxico, genotóxico e mutagênico da tintura de Matricaria chamomilla L. in vivo Efectos citotóxico, genotóxico y mutagénico in vivo de la tintura de Matricaria chamomilla L. The cytotoxic, genotoxic and mutagenic effects of Matricaria chamomilla L. tincture in vivo
Juliana Macedo Delarmelina,Maria do Carmo Pimentel Batitucci,Jefferson Luiz de Oliveira Gon?alves
Revista Cubana de Plantas Medicinales , 2012,
Abstract: Introdu o: Matricaria chamomilla L. é uma planta pertencente à família Asteraceae cujo nome popular é camomila branca. Suas flores possuem diversas substancias com propriedades terapêuticas para cura e preven o de diversos males, dentre eles, desconforto gastrointestinal, inflama es, estresse e hipertens o. Objetivos: avaliar a atividade citotóxica, genotóxica e mutagênica in vivo da tintura vegetal de Matricaria chamomilla utilizando o ensaio de micronúcleo em medula óssea de roedores, n= 6/grupo e o teste em Allium cepa L. Métodos: para a realiza o do ensaio de micronúcleo foram determinados 6 grupos experimentais, os quais foram administrados: cisplatina (controle positivo), solu o salina 0,9 % (controle negativo), álcool etílico 64 % (controle solvente da droga), tintura de Matricaria chamomilla 0,02 e 0,1 μL/g/d proporcionais a 20 e 100 gotas diárias, respectivamente, considerando-se um indivíduo adulto de 75 kg, e dosagem supra-clínica (400 μL/d). Os animais foram expostos a 5 d de tratamento e sacrificados no sexto, com exce o do controle positivo. Para a realiza o do teste em Allium cepa foram determinados 5 grupos experimentais, os quais foram administrados: água destilada (controle negativo), tintura de Matricaria chamomilla nas concentra es de 1 e 5 mg/mL e álcool 64 % diluído nas mesmas propor es que a tintura (controle solvente da droga 1 e 2). Resultados: os resultados demonstraram que a tintura de Matricaria chamomilla n o foi mutagênica, genotóxica e citotóxica nas concentra es testadas, com exce o da dosagem supra-clínica, que apresentou mutagenicidade. Conclus es: a tintura de Matricaria chamomilla quando administrada em dosagens proporcionais às preconizadas para humanos, n o demonstrou citotoxicidade e mutagenicidade para camundongos e genotoxicidade em Allium cepa, chamando aten o para seu uso sob cautela em elevadas quantidades. Introducción: Matricaria chamomilla L. es una planta perteneciente a la familia Asteraceae, cuyo nombre popular es camomila blanca. Sus flores poseen diversas sustancias con propiedades terapéuticas para la cura y prevención de diversos males, entre ellos, malestar gastrointestinal, inflamaciones, estrés e hipertensión. Objetivos: evaluar la actividad citotóxica, genotóxica y mutagénica in vivo de la tintura vegetal de Matricaria chamomilla utilizando el ensayo de micronúcleo en médula ósea de roedores, n= 6/grupo y la prueba en cepa Allium L. Métodos: para la realización del ensayo de micronúcleo fueron determinados grupos experimentales, a los cuales se les administró: cisplatina (control posit
Estudo anat mico da linha semicircular
Jefferson Lessa Soares de Macedo
Revista Brasileira de Cirurgia Plástica , 2010, DOI: 10.1590/s1983-51752010000400031
Abstract:
Bacterial and fungal colonization of burn wounds
Macedo, Jefferson Lessa Soares de;Santos, Jo?o Barberino;
Memórias do Instituto Oswaldo Cruz , 2005, DOI: 10.1590/S0074-02762005000500014
Abstract: a prospective study of fungal and bacterial flora of burn wounds was carried out from february 2004 to february 2005 at the burns unit of hospital regional da asa norte, brasília, brazil. during the period of the study, 203 patients were treated at the burns unit. wound swab cultures were assessed at weekly intervals for four weeks. three hundred and fifty four sampling procedures (surface swabs) were performed from the burn wounds. the study revealed that bacterial colonization reached 86.6% within the first week. although the gram-negative organisms, as a group, were more predominant, staphylococcus aureus (28.4%) was the most prevalent organism in the first week. it was however surpassed by pseudomonas aeruginosa form third week onwards. for s. aureus and p. aeruginosa vancomycin and polymyxin were found to be the most effective drugs. most of the isolates showed high level resistance to antimicrobial agents. fungi were found to colonize the burn wound late during the second week postburn, with a peak incidence during the third and fourth weeks. species identification of fungi revealed that candida tropicalis was the most predominant, followed by candida parapsilosis. it is crucial for every burn institution to determine the specific pattern of burn wound microbial colonization, the time-related changes in the dominant flora, and the antimicrobial sensitivity profiles. this would enable early treatment of imminent septic episodes with proper empirical systemic antibiotics, without waiting for culture results, thus improving the overall infection-related morbidity and mortality.
Reconstru??o de couro cabeludo após mordedura canina
Macedo, Jefferson Lessa Soares de;Rosa, Simone Correa;
Revista do Colégio Brasileiro de Cirurgi?es , 2004, DOI: 10.1590/S0100-69912004000100006
Abstract: background: evaluation of the management of immediate scalp reconstruction after dog bites. methods: there were 55 victims of dog bites on the head seen on the emergency room of the plastic surgery unit, hospital regional da asa norte (hran, brasília, df, brazil) from january, 1999 through december, 2001. results: nine (16.4%) patients had extense injuries on the scalp. from these patients, seven (77.8%) were less than ten years old. the treatment was suture of the lesion of most cases (77,8%). the other cases (22.2%) were treated with graft of the scalp. there was no infection on this series of cases. conclusions: the results indicate that immediate closure of dog bite injuries to the scalp is safe, either by direct suturing or scap grafting.
Predictive factors of mortality in burn patients
Macedo, Jefferson Lessa Soares de;Santos, Jo?o Barberino;
Revista do Instituto de Medicina Tropical de S?o Paulo , 2007, DOI: 10.1590/S0036-46652007000600006
Abstract: burn mortality statistics may be misleading unless they account properly for the many factors that can influence outcome. such estimates are useful for patients and others making medical and financial decisions concerning their care. this study aimed to define the clinical, microbiological and laboratorial predictors of mortality with a view to focus on better burn care. data were collected using independent variables, which were analyzed sequentially and cumulatively, employing univariate statistics and a pooled, cross-sectional, multivariate logistic regression to establish which variables better predict the probability of mortality. survivors and non-survivors among burn patients were compared to define the predictive factors of mortality. mortality rate was 5.0%. higher age, larger burn area, presence of fungi in the wound, shorter length of stay and the presence of multi-resistant bacteria in the wound significantly predicted increased mortality. the authors conclude that those patients who are most apt to die are those with age > 50 years, with limited skin donor sites and those with multi-resistant bacteria and fungi in the wound.
Fechamento primário das mordeduras na face
Macedo, Jefferson Lessa Soares de;Silva, Adilson Alves da;
Revista do Colégio Brasileiro de Cirurgi?es , 2000, DOI: 10.1590/S0100-69912000000500006
Abstract: mammalian bite wounds represent a common type of injury usually seen in the emergency room, constituting approximately 1% of visits to emergency departments. the aim of this study was to evaluate the management of the bites injuries to the face presenting to department of plastic surgery, regional hospital of north wing, brasília, brazil, from january to december, 1999. there were 42 patients, with a mean age of 17 years, ranging between 1 and 50 years: 29 (69,0%) patients were males. dog bites were responsible for 71,4% of all bite wounds, following by human bites (26,2%). the mean duration of injury before presentation was 16 hours. the ear was the most common site of injury (40,0%), followed by the lips. surgical treatment consisted of primary closure, either by direct suturing (66,7%), local flap (28,6%) or skin grafting (4,7%). there was no infection in this study. the results indicate that immediate closure of bite injuries is safe, even with older injuries.
Sepsis in burned patients
Macedo, Jefferson Lessa S. de;Rosa, Simone C.;Castro, Cleudson;
Revista da Sociedade Brasileira de Medicina Tropical , 2003, DOI: 10.1590/S0037-86822003000600001
Abstract: a prospective study was conducted from june 2001 to may 2002 at the burns unit of hospital regional da asa norte, brasília, brazil. during the period of the study, 252 patients were treated at the burns unit, 49 (19.4%) developed clinically and microbiologically proven sepsis. twenty-six (53.1%) were males and 23 (46.9%) females with a mean age of 22 years (range one to 89 years) and mean burned body surface area of 37.7 ± 18.4% (range 7 to 84%). forty-three patients had flame burns, five a scald and one an electric burn. these 49 patients had a total of 62 septic episodes. forty (81.6%) patients had only one and nine (18.4%) had up to three episodes of sepsis. thirty (61.2%) patients had their first septicemic episode either earlier or by one week postburn. out of 62 septic episodes, 58 were due to bacteria and four due to candida sp. the most common bacteria isolated from blood culture were staphylococcus aureus, coagulase-negative staphylococcus, acinetobacter baumannii, enterobacter cloacae and klebsiella pneumoniae. eleven (18.9%) episodes were due to oxacillin resistant staphylococcus aureus. acinetobacter baumannii was sensitive to ampicillin/sulbactam in 71.4% and to imipenem in 85.7% of the cases. the primary foci of sepsis were the burn wound in 15 ( 24.2% ) episodes. the most common clinical findings of sepsis in these patients were fever, dyspnea, hypotension and oliguria. the most common laboratory findings of these patients were anemia, leukocytosis, hypoalbuminemia and thrombocytopenia. twelve (24.5%) patients died. the appropriate knowledge of clinical, epidemiological, laboratorial and microbiological aspects of sepsis in burned patients permits an adequate diagnosis and treatment of this complication.
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