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Search Results: 1 - 10 of 621770 matches for " Chohfi L.M.B. "
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Estudo anat mico do músculo levantador do lábio superior
Ferreira L.M.,Minami E.,Pereira M.D.,Chohfi L.M.B.
Revista da Associa??o Médica Brasileira , 1997,
Abstract: Os autores descrevem as características anat micas do músculo levantador do lábio superior por meio de disseca es em cadáveres. OBJETIVO. Contribuir ao estudo dos músculos da mímica, estudando os seus detalhes anat micos e suas rela es, ajudando na realiza o de retalhos da face. MéTODOS. Foram dissecadas 20 pe as de cadáveres, verificando-se suas inser es, comprimento, largura, espessura, rela es, inerva o e irriga o. RESULTADOS. Em todos os casos, o músculo levantador do lábio superior apresentou inser o proximal na margem inferior da órbita e inser o distal de dois tipos: por meio de fibras laterais sobrepondo-se superficialmente ao músculo orbicular do lábio e de fibras profundas interdigitando-se, formando parte do embricamento do canto da boca (70%); e mediante fibras sobrepondo-se superficialmente ao músculo orbicular do lábio (30%). A média do comprimento foi de 24,66mm e a média da espessura, de 3,57mm. A largura em nível da inser o distal foi, em média, de 11,2mm, enquanto que em nível da inser o proximal foi, em média, de 15,96mm. Relaciona-se anteriormente ao músculo levantador do angulo da boca, posteriormente à por o distal do músculo zigomático menor (90%) e posteriormente à por o média do músculo zigomático menor (10%). A inerva o é feita pelo ramo inferior do nervo zigomático (n. facial) e nervo infra-orbital (n. trigêmeo). Ramos da artéria angular irrigam a por o inferior do músculo e a artéria infra-orbital nutre a por o superior deste músculo.
Estudo anat?mico do músculo levantador do lábio superior
Ferreira, L.M.;Minami, E.;Pereira, M.D.;Chohfi, L.M.B.;Andrews, J. de M.;
Revista da Associa??o Médica Brasileira , 1997, DOI: 10.1590/S0104-42301997000300003
Abstract: the authors describe the anatomical characteristics of the levator labii superioris muscle by dissection in cadavers. purpose. we describe the characteristics of these muscle, the details and relations, hopefully contributing to the study of muscle of the face. methods. twenty faces of cadavers were dissected. the following features were studied: origin, insertion, length, width, thickness, relations, innervation and blood supply. results. in all cases the muscle originated from the inferior orbital margin. two insertions were observed: via lateral fibers, superficial to the orbicularis oris muscle and via deep fibers thar form part of the raphe at the corner of the mouth (70%); via superficial fibers to the orbicularis oris muscle (30%). the average of the length was 24.66mm and the average of the thickness was 3.57mm. the width at its insertion was 11,2 mm, and at the origin was 15.96mm. the levator labii superioris muscle was found to be anterior to the levator anguli oris; it was posterior to the distal portion of the zygomaticus minor (90%) and posterior to the mid portion of the zygomaticus minor (10%). the innervation was from the inferior branch of the zygomatic nerve (facial nerve) and from the infraorbital nerve (trigeminal nerve). the inferior portion of the muscle is supplied by branches of the angular artery and the superior part from branches of the infraorbital artery.
Association of acanthosis nigricans with race and metabolic disturbances in obese women
Araújo, L.M.B.;Porto, M.V.;Netto, E.M.;Ursich, M.J.;
Brazilian Journal of Medical and Biological Research , 2002, DOI: 10.1590/S0100-879X2002000100008
Abstract: acanthosis nigricans (an) has been recognized as a marker of insulin resistance and diabetes mellitus. we have compared frequency of race and metabolic disturbances in obese women with several degrees of an (an group, n = 190) to a group without an (non-an group, n = 61) from a mixed racial population. the groups were similar regarding age and body mass index. all patients (except the diabetic patients) underwent an oral glucose tolerance test (75 g). the racial distribution of this population was 35.1% white, 37.8% mulatto and 27.1% black and the frequency of an was 62.5, 82.1 and 83.8%, respectively, higher in black versus white (p = 0.003) and mulatto versus white (p = 0.002) women. the frequencies of diabetes mellitus and impaired glucose tolerance were 5.8 and 12.6% in the an group and 1.6 and 8.2% in the non-an group, respectively (p>0.05). fasting glucose, ? cell function determined by the homeostasis model of assessment (homa), fasting insulin and insulin area under the curve were similar for the an and non-an groups. a higher homa insulin resistance was observed in the an group compared to the non-an group (p = 0.02) and in the subgroup of highest degree of an compared to those with other degrees. the mean lipid levels and the frequency of dyslipidemia were similar for the two groups. an was strongly associated with the black or mulatto rather than the white race, even after taking into account the effect of age, body mass index and homa insulin resistance.
Association of acanthosis nigricans with race and metabolic disturbances in obese women
Araújo L.M.B.,Porto M.V.,Netto E.M.,Ursich M.J.
Brazilian Journal of Medical and Biological Research , 2002,
Abstract: Acanthosis nigricans (AN) has been recognized as a marker of insulin resistance and diabetes mellitus. We have compared frequency of race and metabolic disturbances in obese women with several degrees of AN (AN group, N = 190) to a group without AN (non-AN group, N = 61) from a mixed racial population. The groups were similar regarding age and body mass index. All patients (except the diabetic patients) underwent an oral glucose tolerance test (75 g). The racial distribution of this population was 35.1% white, 37.8% mulatto and 27.1% black and the frequency of AN was 62.5, 82.1 and 83.8%, respectively, higher in black versus white (P = 0.003) and mulatto versus white (P = 0.002) women. The frequencies of diabetes mellitus and impaired glucose tolerance were 5.8 and 12.6% in the AN group and 1.6 and 8.2% in the non-AN group, respectively (P>0.05). Fasting glucose, cell function determined by the homeostasis model of assessment (HOMA), fasting insulin and insulin area under the curve were similar for the AN and non-AN groups. A higher HOMA insulin resistance was observed in the AN group compared to the non-AN group (P = 0.02) and in the subgroup of highest degree of AN compared to those with other degrees. The mean lipid levels and the frequency of dyslipidemia were similar for the two groups. AN was strongly associated with the black or mulatto rather than the white race, even after taking into account the effect of age, body mass index and HOMA insulin resistance.
Anestesia epidural com lidocaína isolada e associada ao fentanil para realiza??o de ováriossalpingo-histerectomia em cadelas
Cassu, R.N.;Stevanin, H.;Kanashiro, C.;Menezes, L.M.B.;Laposy, C.B.;
Arquivo Brasileiro de Medicina Veterinária e Zootecnia , 2008, DOI: 10.1590/S0102-09352008000400008
Abstract: the effects of lidocaine or lidocaine associated with fentanyl for epidural anesthesia in dogs were studied. eighteen adult healthy bitches were sedated with acepromazine, with subsequent propofol anesthetic induction for the accomplishment of lumbosacral puncture. the animals were alloted in two groups and received: 8.5mg/kg lidocaine (gl group) or 5μg/kg fentanyl associated with 6.5mg/kg (glf group). heart and respiratory rates, systolic arterial blood pressure, blood gas variables, plasmatic concentration of cortisol, need of complementary doses of propofol for surgery, rectal temperature, and onset and duration of anesthesic block were measured. mild alterations in the cardiorespiratory, blood gas variables and plasmatic concentration of cortisol were observed after the epidural anesthesia in both groups. there was no statistical significance in the onset and duration of anesthesic block. complementary doses of propofol were necessary in 40% and 75% of the dogs in glf and gl, respectively. the anesthesic protocols inhibited the elevation of the plasmatic concentration of cortisol, causing minimal cardiopulmonary alterations in the animals. besides, the addition of fentanyl showed best results compared to the local anesthesic isolatedly.
Biscoitos tipo "cookie" e "snack" enriquecidos, respectivamente com caseína obtida por coagula o enzimática e caseinato de sódio
Krüger C.C.H.,Comassetto M.C.G.,Candido L.M.B.,Baldini V.L.S.
Ciência e Tecnologia de Alimentos , 2003,
Abstract: O objetivo do presente trabalho foi a formula o e a caracteriza o química, nutricional e sensorial de dois tipos de biscoito, tipo "cookie" e "snack", utilizando para o enriquecimento protéico a caseína obtida por coagula o enzimática para o "cookie" e caseinato de sódio para o "snack". O biscoito tipo "cookie" apresentou teores mais elevados de umidade, proteína e fibra total que o do tipo "snack", que foi mais rico em gordura e sal. Com rela o aos minerais essenciais, o biscoito tipo "cookie" apresentou-se mais rico em minerais que o "snack", exceto pelo fósforo e pelo sódio com teores mais elevados no "snack". O perfil de aminoácidos essenciais foi mais adequado no tipo "cookie" que no "snack". Conseqüentemente, os índices de valor protéico, exceto a digestibilidade verdadeira, foram superiores para os biscoitos do tipo "cookie". A aceitabilidade dos dois tipos de biscoito foi testada em atletas dos dois sexos com rela o aos atributos: aceita o global, cor da superfície, odor, sabor, crocancia e dureza. A aceita o dos produtos foi de 98% para os "snacks" e 81% para os "cookies". Os "cookies" tiveram o mesmo nível de aceita o pelos homens e pelas mulheres, já os "snacks" foram mais bem aceitos pelos homens (52,7% dos homens gostaram muito, contra apenas 37,8% das mulheres). A análise microbiológica dos dois tipos de biscoito mostrou perfil microbiológico aceitável, com base na Portaria 451 da Secretaria de Vigilancia Sanitária.
The immunomodulator glatiramer acetate influences spinal motoneuron plasticity during the course of multiple sclerosis in an animal model
Marques, K.B.;Scorisa, J.M.;Zanon, R.;Freria, C.M.;Santos, L.M.B.;Damasceno, B.P.;Oliveira, A.L.R.;
Brazilian Journal of Medical and Biological Research , 2009, DOI: 10.1590/S0100-879X2009000200006
Abstract: the immunomodulador glatiramer acetate (ga) has been shown to significantly reduce the severity of symptoms during the course of multiple sclerosis and in its animal model - experimental autoimmune encephalomyelitis (eae). since ga may influence the response of non-neuronal cells in the spinal cord, it is possible that, to some extent, this drug affects the synaptic changes induced during the exacerbation of eae. in the present study, we investigated whether ga has a positive influence on the loss of inputs to the motoneurons during the course of eae in rats. lewis rats were subjected to eae associated with ga or placebo treatment. the animals were sacrificed after 15 days of treatment and the spinal cords processed for immunohistochemical analysis and transmission electron microscopy. a correlation between the synaptic changes and glial activation was obtained by performing labeling of synaptophysin and glial fibrillary acidic protein using immunohistochemical analysis. ultrastructural analysis of the terminals apposed to alpha motoneurons was also performed by electron transmission microscopy. interestingly, although the ga treatment preserved synaptophysin labeling, it did not significantly reduce the glial reaction, indicating that inflammatory activity was still present. also, ultrastructural analysis showed that ga treatment significantly prevented retraction of both f and s type terminals compared to placebo. the present results indicate that the immunomodulator ga has an influence on the stability of nerve terminals in the spinal cord, which in turn may contribute to its neuroprotective effects during the course of multiple sclerosis.
Effect of surgical treatment on the cellular immune response of gastric cancer patients
Barbieri, C.;Fujisawa, M.M.;Yasuda, C.L.;Metze, I.L.;Oliveira, E.C.;Santos, L.M.B.;Lopes, L.R.;Andreollo, N.A.;
Brazilian Journal of Medical and Biological Research , 2003, DOI: 10.1590/S0100-879X2003000300008
Abstract: patients with gastric cancer have a variety of immunological abnormalities. in the present study the lymphocytes and their subsets were determined in the peripheral blood of patients with gastric cancer (n = 41) both before and after surgical treatment. the percent of helper/inducer cd4 t cells (43.6 ± 8.9) was not different after tumor resection (43.6 ± 8.2). the percent of the cytotoxic cd8+ t cell population decreased significantly, whether patients were treated surgically (27.2 ± 5.8%, n = 20) or not (27.3 ± 7.3%, n = 20) compared to individuals with inflammatory disease (30.9 ± 7.5%) or to healthy individuals (33.2 ± 7.6%). the cd4/cd8 ratio consequently increased in the group of cancer patients. the peripheral blood lymphocytes of gastric cancer patients showed reduced responsiveness to mitogens. the defective blastogenic response of the lymphocytes was not associated with the production of transforming growth factor beta (tgf-?) since the patients with cancer had reduced production of tgf-?1 (269 ± 239 pg/ml, n = 20) in comparison to the normal individuals (884 ± 175 pg/ml, n = 20). these results indicate that the immune response of gastric cancer patients was not significantly modified by surgical treatment when evaluated four weeks after surgery and that the immunosuppression observed was not due to an increase in tgf-?1 production by peripheral leukocytes.
Biscoitos tipo "cookie" e "snack" enriquecidos, respectivamente com caseína obtida por coagula??o enzimática e caseinato de sódio
Krüger, C.C.H.;Comassetto, M.C.G.;Candido, L.M.B.;Baldini, V.L.S.;Santtucci, M.C.;Sgarbieri, V.C.;
Ciência e Tecnologia de Alimentos , 2003, DOI: 10.1590/S0101-20612003000100017
Abstract: the objective of the present work was the formulation and characterization, chemical, nutritional and sensorial, of two types of biscuits, cookie and snack, using rennet casein and sodium caseinate for cookies and snacks enrichment, respectively. the cookie type biscuit presented higher contents of moisture, protein, and total fiber than the snack type which was richer in fat and salt. as to essential minerals the cookies were richer than the snacks, except for sodium and phosphorous which were higher in the snacks. the amino acid profile was more adequate in the cookie than in the snack type. except for true digestibility the protein value indexes were higher for the cookies. acceptability of the two types of biscuits was tested for athlets of both sexes related to overall acceptability, surface color, odor, taste, crispness and hardness. acceptability rated 98% for the snacks and 81% for the cookies. cookies and snacks had the same acceptability for both men and women but the snacks had higher acceptability by men (52.7%) against 37.8% by the women. microbiological analysis revealed an acceptable profile for both types of biscuit.
Research on the Effect of High Power Microwave on Low Noise Amplifier and Limiter Based on the Injection Method  [PDF]
D. Chen, L.M. Xu, B.S. Zhang, H.G. Ma
Journal of Electromagnetic Analysis and Applications (JEMAA) , 2010, DOI: 10.4236/jemaa.2010.22016
Abstract: The reliability of electronic device is threatened in high power microwave (HPM) environment. In accordance with the situation that the emulation is ineffective in evaluating the accuracy and precision of the HPM effect to electronic device, the experimental method is used to resolve the problem. Low Noise Amplifier (LNA) and Limiter are selected as the objects for the experiments, the structural characteristic of the front-end of radar receiver is described, the phenomena and criterion are elaborated and analyzed using injection method due to its ability to get an accurate threshold avoiding the complex coupling, the basic principle of injection experiment is demonstrated, and the method and process of effect experiment about Low Noise Amplifier and Limiter are also explained. The experimental system is established, and the system is composed of low power microwave source such as TWT, test equipment for obtaining the effect parameters, and some of auxiliary equipments as camera, optical microscope or electron microscopy, attenuator, detector, and directional coupler etc. The microwave delivered from source is adjusted to the power infused by attenuator, and pour in the decanting point of effecter via directional coupler, then the couple signal created by directional coupler is input to the recording instrument after detecting by detector, finally the power of effecter is obtained. The value of power, which damages the effecter in the microwave pulse environment, is classified at the index of sensitivity, and the threshold is obtained by power diagnose and wave test. Some regular understandings of the HPM effect to electronic device are obtained based on the results of the experiments. It turns out that the index of electronic device is influenced significantly by the energy via front door coupling, the MOSFET made up of GaAs is the most wearing part to HPM in LNA, the damage threshold of LNA is about 40dBm under single pulse while in repetitive pulse the value is from 33.3dBm to 43.9dBm according to different wave band. The damage threshold of Limiter is about 56dBm to80dBm.
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