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Search Results: 1 - 10 of 12101 matches for " Fernanda; Serra Ortega "
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Carcinoma de las células basales en el ni?o: Presentación de un caso
Moredo Romo,Edelisa; Pastrana Fundora,Fernanda; Serra Ortega,Alain; Pérez Pi?eiro,Tania;
Revista Cubana de Pediatr?-a , 2005,
Abstract: se presenta el caso de un escolar de seis a?os de edad, del sexo masculino y raza negra, que desarrolló un carcinoma de las células basales de la piel de la cara sin antecedente previo de lesión cutánea, exposición exagerada al sol ni otros agentes carcinógenos conocidos. por la rareza de esta neoplasia en la edad pediátrica y de su aparición en la raza negra, por el interés despertado hacia este caso en nuestro servicio y sobre la base de que su incidencia muestra una tendencia creciente y de que este tipo de tumor se ha convertido en un problema de salud pública mayor; se decide realizar una revisión amplia del tema y presentar este caso.
Carcinoma de las células basales en el ni o: Presentación de un caso Basal cell carcinoma in the child: A case report
Edelisa Moredo Romo,Fernanda Pastrana Fundora,Alain Serra Ortega,Tania Pérez Pi?eiro
Revista Cubana de Pediatr?-a , 2005,
Abstract: Se presenta el caso de un escolar de seis a os de edad, del sexo masculino y raza negra, que desarrolló un carcinoma de las células basales de la piel de la cara sin antecedente previo de lesión cutánea, exposición exagerada al sol ni otros agentes carcinógenos conocidos. Por la rareza de esta neoplasia en la edad pediátrica y de su aparición en la raza negra, por el interés despertado hacia este caso en nuestro servicio y sobre la base de que su incidencia muestra una tendencia creciente y de que este tipo de tumor se ha convertido en un problema de salud pública mayor; se decide realizar una revisión amplia del tema y presentar este caso.
Visual illusion due to the interaction of flickering and acoustic vibrotactile signals
Ruggero Micheletto,Maria Fernanda Avila-Ortega
Quantitative Biology , 2012,
Abstract: We studied the influence of mechanical vibrotactile signals in the acoustic range to the visual perception of flickering images. These images are shown on a CRT screen intermittent at about 75 Hz, without external perturbations are perceived as constant and stable. However, if presented together with a controlled acoustical vibration an illusion is perceived. The images appears to float out of the screen, while the rest of the room is still perceived normally. The acoustical signal given to the subjects were of very low frequency (below 100Hz) and low amplitude (almost inaudible). The stimuli were transmitted through direct contact to the subject's chin with the use of a plastic stick connected to a speaker. The nature of the illusion is described and a basic theoretical model is given.
Alimenta??o complementar e estado nutricional de crian?as menores de dois anos atendidas no Programa Saúde da Família em Acrelandia, Acre, Amaz?nia Ocidental Brasileira
Garcia, Mariana Tarricone;Granado, Fernanda Serra;Cardoso, Marly Augusto;
Cadernos de Saúde Pública , 2011, DOI: 10.1590/S0102-311X2011000200012
Abstract: our objective was to investigate nutritional status and complementary feeding practices in children from 6 to 24 months of age living in the western brazilian amazon. a cross-sectional study was conducted within an urban area of acrelandia, acre state. a total of 164 children were studied. prevalence rates for stunting and anemia were 12% and 40%, respectively, and overall prevalence of iron deficiency was 85%. vitamin a and b12 serum levels were below normal thresholds in 15% and 12% of children, respectively. low intake was observed for the following nutrients (% of children): folic acid (33%), vitamin c (40%), vitamin a (42%), zinc (46%), and iron (71%). iron bioavailability in the diet was approximately 8%. very low dietary intakes of fruits, vegetables, and meats were observed, in contrast with excessive consumption of cow's milk and porridge.
Evaluation of the Use of Gamma Radiation for Reduction of Aflatoxin B1 in Corn (Zea mays) Used in the Production of Feed for Broiler Chickens  [PDF]
Marco Sinche Serra, Marco Burbano Pulles, Freddy Torres Mayanquer, Martin Campos Vallejo, Marcelo Ibarra Rosero, Jorge Mina Ortega, Luis Nu?ez Naranjo
Journal of Agricultural Chemistry and Environment (JACEN) , 2018, DOI: 10.4236/jacen.2018.71003
Abstract: Corn is one of the main grasses used to produce human or animal food. One of the main problems with the use of corn is the presence of mycotoxins, where aflatoxin B1 is one of the most harmful for human and animal health. Chemical methods such as the addition of antifungals and sequestrants are used to control this contaminant in food; however, these methods can leave dangerous residues. The aim of this research was to evaluate the effectiveness of irradiation with gamma rays on corn for the control of aflatoxin B1. For this purpose, three treatments were compared: treatment 1, application of gamma radiation, treatment 2, application of antifungal and treatment 3, combination of gamma radiation and application of antifungal. Corn without exposure to any control of aflatoxin was used as a witness group. Irradiation doses of 2, 6 and 10 kGy were tested, and the dose of 6 kGy was selected as the best since it lowered aflatoxin B1 more effectively. The corn analyzed in this study was stored during 45 days at 23°C, and every 15 days. We determined the concentration of aflatoxin B1, presence or absence of pathogenic microorganisms and insects, and we evaluated the physicochemical characteristics of the grain. Then, the treatments were compared and treatment 1, only irradiation
Asociación patomorfológica y morfométrica de la lesión aterosclerótica en siete diferentes sectores arteriales
Serra Ortega,Alain; Fernández-Britto Rodríguez,José; Campos,R;
Revista Cubana de Investigaciones Biom??dicas , 2008,
Abstract: four hundred and sixty necropsies of patients from "carlos j. finlay" hospital performed between 1999 and 2003 were investigated. eighteen arteries from the following seven vascular arteries were analyzed: willis circle, considered as only one artery, the three epicardial coronaries (right, anterior descending and left circumflex) , the aorta (thoracic and abdominal); the two renal, the iliac and the phemoral. an atherometric system was used for the pathomorphological and morphometric study. the arteries were dissected, fixed and coloured. a qualitative and quantitative analysis was made for the statistical study by canonical correlation. among the most important results there were observed very strong correlations between the adipose stria, the fibrous plaque and the severe plaque in the analyses of all among all the investigated arteries, with a few exceptions. all these results strongly suggest that atherosclerosis is a process of systemic distribution
Tumor odontógeno adenomatoide en región mandibular Adenomatoid odontogenic tumor in mandibular region
Ernesto Sánchez Cabrales,Dadonim Vila Morales,ángel Mario Felipe Garmendia,Alain Serra Ortega
Revista Cubana de Estomatolog?-a , 2010,
Abstract: El tumor odontogénico adenomatoide es un tumor poco frecuente derivado del epitelio odontontogénico, que contiene estructuras canaliculares con modificaciones inductivas de intensidad variable en el tejido conjuntivo. Es una lesión de crecimiento lento y poco invasiva pero que se puede asemejar a otras lesiones odontógenas de mayor agresividad como el quiste dentígero y el ameloblastoma entre otros. Su localización clásica (área de caninos superiores) nos orienta al diagnóstico y su patrón histológico ductiforme es muy propio de este tumor. Otros tumores que se encuentran dentro de este grupo son el fibroma ameloblástico, el odontoameloblastoma, el quiste odontógeno calcificante y los odontomas compuesto y complejo. Este grupo de lesiones puede o no tener formaciones de tejido duro dental dentro de ellos. Por esta razón, se presenta un paciente con este tipo de tumor, al que se le realizó estudio histopatológico, se revisó la literatura acerca de este tumor odontogénico benigno y sus características clínicas, radiográficas, tratamiento, así como los diagnósticos diferenciales que se deben tener en cuenta. The adenomatoid odontogenic tumor is an uncommon neoplasm derivative of the odontogenic epithelium containing canalicular structures with inductor modifications of variable intensity in the conjunctival tissue. It is a slow growth lesion and no much invasive but that may to be similar to other odontogenic lesions more aggressive including the dentigerous cyst and the ameloblastoma among others. Its classical location (upper canine area) guides us to diagnosis and its duct histological pattern is very typical of this tumor. Other tumors included in this group are the ameloblastic fibroma, the ameloblastic odontoma, the calcified odontogenic cyst and composed and complex odontomas. This group of lesions may or not to have formations of hard tissue inside. Thus, authors present the case of a patient presenting with this type of tumor making a histopathology study, a literature review on this benign odontogenic tumor and its clinical radiographic features, treatment, as well as the differential diagnoses to be into account.
Asociación patomorfológica y morfométrica de la lesión aterosclerótica en siete diferentes sectores arteriales Pathomorphological and morphometric association of the atherosclerotic lesion in seven different arterial sectors
Alain Serra Ortega,José Fernández-Britto Rodríguez,R Campos
Revista Cubana de Investigaciones Biom??dicas , 2008,
Abstract: Se investigaron 460 necropsias de pacientes procedentes del Hospital Docente "Dr. Carlos J. Finlay", realizadas entre 1999 y 2003. Se analizaron 18 arterias procedentes de los siete sectores vasculares siguientes: el polígono de Willis, considerado como una sola arteria, las tres coronarias epicárdicas (derecha, descendente anterior y circunfleja izquierda), la aorta (torácica y abdominal), las renales, las ilíacas y las femorales. Para el estudio patomorfológico y morfométrico se utilizó el sistema aterométrico. Las arterias se disecaron, se fijaron, se colorearon y se les realizaron los análisis cualitativo y cuantitativo para el estudio estadístico mediante la correlación canónica. Entre los resultados más relevantes se observaron muy fuertes correlaciones entre la estría adiposa, la placa fibrosa y la placa grave en los análisis entre todas las arterias investigadas, con algunas excepciones. El conjunto de estos resultados sugiere que la aterosclerosis es un proceso de distribución sistémica Four hundred and sixty necropsies of patients from "Carlos J. Finlay" Hospital performed between 1999 and 2003 were investigated. Eighteen arteries from the following seven vascular arteries were analyzed: Willis circle, considered as only one artery, the three epicardial coronaries (right, anterior descending and left circumflex) , the aorta (thoracic and abdominal); the two renal, the iliac and the phemoral. An atherometric system was used for the pathomorphological and morphometric study. The arteries were dissected, fixed and coloured. A qualitative and quantitative analysis was made for the statistical study by canonical correlation. Among the most important results there were observed very strong correlations between the adipose stria, the fibrous plaque and the severe plaque in the analyses of all among all the investigated arteries, with a few exceptions. All these results strongly suggest that atherosclerosis is a process of systemic distribution
The effect of methylphenidate on oppositional defiant disorder comorbid with attention deficit/hyperactivity disorder
Serra-Pinheiro, Maria Antonia;Mattos, Paulo;Souza, Isabella;Pastura, Giuseppe;Gomes, Fernanda;
Arquivos de Neuro-Psiquiatria , 2004, DOI: 10.1590/S0004-282X2004000300005
Abstract: objective: to assess the effect of methylphenidate on the diagnosis of oppositional-defiant disorder (odd) comorbid with attention-deficit hyperactivity disorder (adhd). method: we conducted an open-label study in which 10 children and adolescents with a dual diagnosis of odd and adhd were assessed for their odd symptoms and treated with methylphenidate. at least one month after adhd symptoms were under control, odd symptoms were reevaluated with the parent form of the children interview for psychiatric syndromes (p-chips). results: nine of the 10 patients no longer fulfilled diagnostic criteria for odd after they were treated with methylphenidate for adhd. conclusion: methylphenidate seems to be an effective treatment for odd, as well as for adhd itself. the implications for the treatment of patients with odd not comorbid with adhd needs further investigation.
The third sector strategy: a bibliometric and correlation analysis on the topic academic approach Estratégia no terceiro setor: uma análise bibliométrica e de correla o sobre a abordagem acadêmica do tema
Bernardo Paraiso de Campos Serra,Fernanda Cruz Figueiredo,Martinho Isnard Ribeiro de Almeida
Revista Eletr?nica de Estratégia e Negócios , 2013,
Abstract: The purpose of this article is to know related to the academic field of strategy-focused organizations in the Third Sector. It was used for this purpose the research method called bibliometric analysis and subsequently a correlation analysis. With the main keywords related to the topic, the survey achieved a return of 105 works in the database Web of Science - ISI Web Of Knowledge. Thus, it was possible to identify the most referenced authors in the field, the most relevant publications and the mainstream media as well as developing a correlation graphic showing the relationship between the work, identifying the trends of studies on the subject. Starting from the bibliometric analysis and correlation, the main contribution of this work is to illustrate the current state of the art on the theme and its gaps. The paper concludes that the theme of the strategy for the Third Sector is a broad field for future research, and that scholars can deepen the question of the peculiarities of these organizations to develop a more specific theme. It is suggested that further research be done also in other databases to corroborate the results obtained. O propósito do presente artigo é conhecer a produ o acadêmica relacionada ao campo da estratégia com foco em organiza es do Terceiro Setor. Utilizou-se para este fim o método de pesquisa denominado análise bibliométrica e posteriormente uma análise de correla o. Com as principais palavras-chave relacionadas ao tema, a pesquisa obteve retorno de 105 trabalhos na base de dados Web of Science – ISI Web Of Knowledge. Com isso, foi possível identificar os autores mais referenciados no assunto, as publica es mais relevantes e os principais periódicos, além de construir um gráfico de correla o que mostra as rela es entre os trabalhos, identificando tendências dos estudos sobre o tema. Partindo da análise bibliométrica e de correla o, a principal contribui o do trabalho é ilustrar o atual estado da arte sobre o tema e suas lacunas. O trabalho conclui que o tema da estratégia para o Terceiro Setor constitui um amplo campo para futuras pesquisas, e que estudiosos podem aprofundar na quest o das peculiaridades dessas organiza es para desenvolver uma abordagem mais específica do tema. Sugere-se que sejam feitas também pesquisas complementares em outras bases de dados para corroborar os resultados obtidos.
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