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Search Results: 1 - 10 of 489112 matches for " Ricardo Keyson Paiva de;Silva Júnior "
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Síndrome de Peutz-Jeghers: relato de caso
Andrade, Aderivaldo Coelho de;Carvalho Júnior, Edílson;Dantas, Karoline da Silva;Sousa, Jocerlano Santos de;Morais, Ricardo Keyson Paiva de;
Revista do Colégio Brasileiro de Cirurgi?es , 2008, DOI: 10.1590/S0100-69912008000300015
Abstract: peutz-jeghers syndrome (pjs) is a dominant autosomal inherited disorder characterized by intestinal hamartomatous polyps in association with mucocutaneous melanocytic maculae. this syndrome is rare, and the frequency reaches from 1 in 60,000 to 1 in 300,000 people in the usa. the symptom presentations vary greatly in this disease. some patients require minor clinical treatment while others undergo many hospitalizations and surgical treatments. in addition, patients with pjs have an increased risk for developing a variety of malignant tumors. the aim of the present study was to report one case studied of peutz-jeghers syndrome.
Schwanoma de plexo braquial: relato de dois casos
Leal Filho, Manoel Baldoíno;Aguiar, Aline de Almeida Xavier;Almeida, Bruno Ribeiro de;Dantas, Karoline da Silva;Vieira, Marcelo Adriano da Cunha e Silva;Morais, Ricardo Keyson Paiva de;Silva Júnior, Raimundo Ger?nimo da;
Arquivos de Neuro-Psiquiatria , 2004, DOI: 10.1590/S0004-282X2004000100030
Abstract: schwannomas, neurinomas or neurilemmomas are benign peripheral nerve tumors. the literature report some cases associated with neurofibromatosis 2. we report two cases of cervical schwannoma originating from the brachial plexus unassociated with neurofibromatosis. a 31-year-old woman presented with a mass in the right supraclavicular region, irradiating pain and distal tingling to percussion (tinel's sign) for 6 months. and a 52-year-old woman presented with pain in the cervical region and right arm for one year. both the patients underwent to a microsurgery with total resection of the lesion. histology of the surgical specimen confirmed the diagnosis of schwannoma. postoperatively, the patients had a good recovery.
Forma tumoral de neurocisticercose: relato de caso
Leal Filho, Manoel Baldoino;De Castro, José Adail Fonseca;Vieira, Marcelo Adriano da Cunha e Silva;Xavier, Aline de Almeida;Almeida, Bruno Ribeiro de;Morais, Ricardo Keyson Paiva de;Dantas, Karoline da Silva;
Arquivos de Neuro-Psiquiatria , 2002, DOI: 10.1590/S0004-282X2002000500029
Abstract: the authors report a case of neurocysticercosis by giant cyst (3.9 x 3.4 cm), where there were clinical manifestations of increased intracranial pressure and characteristics of image in computed tomography of cranium of expansive process with mass effect in central nervous system (cns). they comment the possibility of the tumoral form of this disease having clinical and radiological presentation similar to other expansive processes of cns and stress the surgical procedure as a form of treatment and diagnostic confirmation.
Granuloma eosinofílico de coluna cervical: relato de caso
Leal Filho, Manoel Baldoino;Aguiar, Aline de Almeida Xavier;Almeida, Bruno Ribeiro de;Dantas, Karoline da Silva;Vieira, Marcelo Adriano da Cunha e Silva;Morais, Ricardo Keyson Paiva de;
Arquivos de Neuro-Psiquiatria , 2003, DOI: 10.1590/S0004-282X2003000100030
Abstract: eosinophilic granuloma (eg) is a benign condition of histocytes proliferation localized or multifocal. it is presents in the cervical spine in 1.5%-20% of the cases of eg. we report the case of a seven-year-old girl that presented with a one month history of cervical pain, persistent wryneck and vicious posture of the neck. a computerized tomography was performed and confirmed the presence of spreading lesion, ostheodestructive to the level of the left laminae of c2, with invasion of the spine and the muscular tissue. a laminectomy was underwent for removal of the lesion. the patient had a good post-operative recovery with improvement of the symptoms. chemotherapy with prednisone, vinblastine and ethoposide was administred. after six months, this protocol was repeated associaded to methotrexate.the patient improved and had no new symptoms in a follow-up of 36 months.
Spinal cord injury: epidemiologycal study of 386 cases with emphasis on those patients admitted more than four hours after the trauma
Leal-Filho, Manoel Baldoino;Borges, Guilherme;Almeida, Bruno Ribeiro de;Aguiar, Aline de Almeida Xavier;Vieira, Marcelo Adriano da Cunha e Silva;Dantas, Karoline da Silva;Morais, Ricardo Keyson Paiva de;Santos, Carlos Rogério Nogueira dos;Mendes, Sumihara de Sousa;Pinheiro, Luciana Maria;
Arquivos de Neuro-Psiquiatria , 2008, DOI: 10.1590/S0004-282X2008000300016
Abstract: we studied 386 cases of spinal cord injury to analyze the follow up of the patients admitted most of the time more than four hours, the majority of the injuries happening far from the attending health service and first specialized care received long after the accident. this is a clinical study based on data collected during hospitalization of the patients, operated or not, in a brazilian public health service. the lesion mainly seen was fracture and dislocation, isolated or on multiple levels, and the most important clinical complications were due to respiratory failure and hypotension, especially because 73.8% were from outside and they were admitted more then four hours after the trauma. the mortality rate was 11.9%, but just 2.1% had undergone a surgery. the complications resulted in major risk of death when the trauma was at the cervical level and the patients were over 50 years old, especially when admitted more than four hours after the trauma. we emphasize the importance of the first health care concerning the clinical treatment, aiming to reduce the mortality rate.
Competências empreendedoras do dirigente de empresa de base tecnológica: um caso empresarial de sucesso.
Sérgio C. Benício de Mello,Francisco Ricardo Bezerra Fonsêca,Fernando Gomes de Paiva Júnior
Revista de Administra??o Mackenzie , 2007,
Abstract: No cenário contemporaneo brasileiro de negócios, a compreens o dos comportamentos relacionados às competências empreendedoras pode auxiliar o dirigente de empresa de base tecnológica no entendimento de atributos geradores de valor, na intera o com grupos internos e externos às suas organiza es. A competência pode ser concebida como uma característica que engloba diferentes tra os de personalidade, habilidades e conhecimentos. Este estudo de natureza qualitativa foi realizada com base em narrativas e entrevistas relacionadas às a es do empreendedor Miguel Abuhab – o empreendedor de alta tecnologia de 2003. Os resultados demonstraram a prevalência das competências conceituais e de vis o de mercado. O empreendedor de sucesso é alguém com agu ada intui o, que aprende continuamente, tem criatividade e facilidade de avaliar riscos em meio a cenários obscuros e de incerteza, que vislumbra as oportunidades de negócio sob outros horizontes e que dá vaz o ao (re)inventar-se, bem como ao seu empreendimento.
Suscetibilidade a dano pelo frio em abacaxi 'pérola' tratado com 1-metilciclopropeno
Dantas Júnior, Ovídio Ricardo;Silva, Silvanda de Melo;Alves, Ricardo Elesb?o;Silva, Ebenézer de Oliveira;
Revista Brasileira de Fruticultura , 2009, DOI: 10.1590/S0100-29452009000100020
Abstract: this work evaluated the effect of 1-methylcyclopropene (1-mcp) on susceptibility to chilling injury (ci) in 'perola' pineapple, harvested at the commercial maturity from santa rita municipality, paraíba state, northeast brazil. fruits were treated at room temperature with 1-mcp (0, 300, 600, and 1200 ppb) for a 12-hour period and stored: a) during 42 days at 10oc, evaluated each 7 days and, when transferred to room conditions (25oc and 65±5% r.h.), followed 21, 28, 35, and 42 days, and were also evaluated after 7 days; b) during 32 days at 7oc, evaluated at 8-day intervals, transferred to room conditions followed 8, 16, 24, and 32 days, and evaluated after 7 days. for pineapple kept at 10oc it was not observed 1-mcp effect of retarding the loss of fruit quality. for fruits stored at 7oc, 1-mcp minimized the incidence of ci when pineapples were transferred to room conditions.
Respostas auditivas evocadas de latência média: um estudo de padroniza??o
Almeida, Francisco Sales de;Pialarissi, Paulo Roberto;Paiva Júnior, Luiz Eduardo Ferreira;Almeida, Maria Aparecida Oliveira;Silva, André;
Revista Brasileira de Otorrinolaringologia , 2006, DOI: 10.1590/S0034-72992006000200013
Abstract: the presence of auditory middle latency evoked responses allows us to make an evaluation of the peripheral and central auditory system integrity , as well as the nucleus and auditory ways existing until the level of the thalamus-cortical region and primary auditory cortex. aim: our objective is to evaluate the presence or not of this numerous peaks, as well as, their latencies and intervals and extend to make a standardizing study. way of study: contemporary study of coorte with transversal cut and the outline was quantitative, descriptive e non experimental. material and method: studying several peaks, positives and negatives, caused by the middle latency auditory potentials, in a population of young adults individuals, ranging from 18 to 30 years old, from both genders, with normal hearing. it was used a monoauricular resonant stimulation and a capitation, separately, in both cerebral hemispheres, with surface electrodes. results: in this research was verified that the analyzed crossings did not present statistically significant results and it was stipulated a pattern from the obtained results. based on the non-statistical difference found we can affirm that to the po waves was obtained respectively an average and standard deviation of 12,09 and 1,84; for na 17,91 and 2,60; for pa 29,41 and 5,66; for nb 41,43 and 8,89; to for 51,44 ms e 12,63 and finally to the interval na-pa 11,52 and 4,99. conclusion: 1- the presence of the defluxions po, na, and pa was verified in all the registers, whereas the defluxions nb and pb were absent in only 06 registers. 2- by having these registers, we evaluated that the inveiglement of these defluxions can be used as a reliable method to detect the average latency of the auditory potentials, by electrical generated activities, possibly in sites located in the thalamus-cortical area, evoked by sonorous stimulation. from that point, we establish a pattern of responses for young ones with normal hearing, helping us with future studies
Growth and Visual Symptoms of Nutrients Deficiency in Mangosteens (Garcinia mangostana L.)  [PDF]
Ismael de Jesus Matos Viégas, Ricardo Augusto Martins Cordeiro, Gabriela Mour?o de Almeida, Diocléa Almeida Seabra Silva, Bianca Cavalcante da Silva, Ricardo Shigueru Okumura, Mário Lopes da Silva Júnior, Sávia Poliana da Silva, Joze Melisa Nunes de Freitas
American Journal of Plant Sciences (AJPS) , 2018, DOI: 10.4236/ajps.2018.95078
Abstract: The aims of study were to evaluate growth and characterize the visual symptoms of macronutrient and micronutrient deficiencies in mangosteens. The seedlings were cultivated in nutritive solution containing all required macronutrient and micronutrients and in solutions with omission of N, P, K, Ca, Mg, S, B, Cu, Fe, Mn, and Zn, using the missing element technique. The experimental design was completely randomized with five replicates and twelve treatments. Symptoms of nutrient deficiency were accompanied by photographic records and described from beginning until complete definition, in which the plants were collected. Growth was evaluated through of dry mass production and nutrient contents. Nutrients omissions resulted in morphological alterations, characteristic symptoms of nutritional deficiency, promoted the reduction in dry mass production in plant, in which the Fe was most limiting, followed by N, and S. Macronutrients and micronutrients contents, without deficiencies (complete treatment) and deficient in mangosteen leaves were respectively: N (16.4 and 12.5 g kg-1); P (1.1 and 0.2 g kg-1); K (10.2 and 8.1 g kg-1); Ca (6.7 and 1.9 g kg
Organogênese em capítulos florais e avalia??o de características anat?micas da folha de Gerbera jamesonii Adlam
Rezende, Rodrigo Kelson Silva;Paiva, Luciano Vilela;Paiva, Renato;Chalfun Júnior, Ant?nio;Torga, Paula Pereira;Castro, Evaristo Mauro de;
Ciência e Agrotecnologia , 2008, DOI: 10.1590/S1413-70542008000300018
Abstract: the objective was to determine a micropropagation protocol for indirect organogenesis and to compare the anatomical characteristics of leaves of gerbera (gerbera jamesonii adlam) obtained in vitro with the leaves maintained in vivo conditions. capitulum explants of gerbera were taken as an initial source of explants to induce callus and regeneration. the obtained shoots were rootted in vitro and after 30 days seedlings were acclimatized.thus, anatomical studies of leaves originating from of the in vivo and in vitro cultivation were taken. on average it was obtained 3,2 shoots and 6,6 leaves from the induction of callus in capitulum explants of gerbera. the formation of roots was observed in the presence and absence of naa, obtaining 100% of rooting. the supplementation of naa to the medium promoted a linear increase in the number of roots and in the mean length of roots. seedlings from the in vitro cultivation showed rate of 100% of survival in the acclimatization. the foliar structures developed in vivo showed adaxial epidermis, palisade parenchyma, spongy parenchyma and abaxial epidermis thicker than in the in vitro cultivation. the vascular system in leaves produced in vivo is more developed than in vitro.
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