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Search Results: 1 - 10 of 200064 matches for " Magali Justina Gómez;Andrade "
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Estudo da frequência dos alelos de HLA-DRB1 em pacientes brasileiros com artrite reumatoide
Usnayo, Magali Justina Gómez;Andrade, Luis Eduardo Coelho;Alarcon, Renata Triguenho;Oliveira, Juliana Cardoso;Silva, Gustavo Milson Fabrício;Bendet, Izidro;Burlingame, Rufus;Porto, Luis Cristóv?o;Pinheiro, Geraldo da Rocha Castelar;
Revista Brasileira de Reumatologia , 2011, DOI: 10.1590/S0482-50042011000500007
Abstract: the hla-drb1 alleles encoding an amino acid sequence (qkraa/qrraa/rrraa) at position 70 74 of the third hypervariable region of the β1 chain of the hla-drb1 gene, called shared epitope (se), are associated with increased susceptibility to and severity of rheumatoid arthritis (ra) in different populations. objective: to determine the frequency of hla-drb1 alleles in brazilian patients with ra and their association with rheumatoid factor (rf) and anti-citrullinated peptide antibodies (acpa). methods: four hundred and twelve patients with ra (acr 1987) and 215 controls were included. hla-drb1 typing was performed by use of polymerase chain reaction (pcr) with specific primers and hybridization with sequence-specific oligonucleotide probe (ssop). acpa was measured by use of the elisa technique and rf by nephelometry. the statistical analysis comprised the chi-square and student t tests and logistic regression. results: hla-drb1*04:01, *04:04, *04:05 alleles were associated with ra (p < 0.05); despite the wide confidence interval, it is worth noting the association between the drb1*09:01 allele and ra (p < 0.05). hla-drb1 se+ alleles were observed in 62.8% of the patients and in 31.1% of controls (or 3.62; p < 0.001) and were associated with acpa (or 2.03; p < 0.001). drb1-deraa alleles showed a protective effect against ra (or 0.42; p < 0.001). conclusion: in a sample of brazilian patients with ra, most of whom of mixed heritage, hla-drb1 se+ alleles were associated with susceptibility to disease and presence of acpa.
Corrosion of bare and galvanized steel in gypsum
Gómez, Mercedes,Andrade, Carmen
Materiales de Construccion , 1988,
Abstract: Gypsum is a relatively low-cost building material much abounding in our country. When it is put in contact with steel, it may produce high corrosion rates due to its pH value (close to 7). This work reports the results obtained in studying the corrosion rates of bare and galvanized steel in contact with gypsum and plaster, as well as the influence curing thermal treatment applied to gypsum, enviromental relative humidity and addition of compounds with different natures and purposes may have in such process. In-situ observations, as well as the measurement of the Polarization Resistance and the weight loss have been used as measurement technics. From the results obtained it has been possible to deduce that galvanized steel has better behaviour in dry enviroments than bare steel in the same conditions and moist atmosphere induces proportionally more corrosion in galvanized steel than in bare one. Additions to gypsum do not modified these conclusions, though it may be pointed out that addition of nitrites or lime improves the behaviour of bare steel, while galvanized behaviour is not modified. The addition of lime is not recommended because phenomena of dilated along time expansion may take place. El yeso es un material de construcción de relativo bajo coste y que, además, es muy abundante en nuestro país. Debido a su pH cercano a la neutralidad, cuando entra en contacto con el acero, este puede corroerse a elevadas velocidades. En esta comunicación se presentan los resultados de un estudio sobre la velocidad de corrosión del acero desnudo y galvanizado en contacto con yeso y escayola y la influencia que tienen: el tratamiento térmico del curado del yeso, la humedad relativa ambiental y la adición de aditivos de diversa naturaleza y finalidad. Como técnicas de medida se han utilizado la medida de la Resistencia de Polarización y de la pérdida de peso, así como observaciones visuales. De los resultados se puede deducir que en ambientes secos el acero galvanizado se comporta siempre mejor que el acero desnudo y que la humedad ambiental afecta en proporción más a la corrosión del galvanizado que a la del desnudo. Los aditivos para el yeso utilizados no modifican estas conclusiones, en cambio tanto los nitritos como la cal mejoran el comportamiento del acero desnudo, mientras que no modifican el del galvanizado. La adición de cal no se recomienda debido a fenómenos de expansión dilatada en el tiempo.
Rendimiento reproductivo de hembras de Cryphiops caementarius (Crustacea: Palaemonidae) mantenidas con alimento natural Reproductive Performance of female of Cryphiops caementarius (Crustacea: Palaemonidae) maintained with natural food
Magali Bazán,Silvia Gámez,Walter Eduardo Reyes
Revista Peruana de Biología , 2011,
Abstract: El objetivo del presente trabajo fue determinar el rendimiento reproductivo de hembras de C. caementarius mantenidas con alimento natural. Se empleó 24 hembras inmaduras (5,2 cm y 2,0 g), acondicionadas en ocho acuarios (45 L) y alimentadas durante dos meses de acuerdo a cada tratamiento, con pota (Dosidicus sp.), almeja (Semele solida), poliqueto (Pseudonereis sp.) y con alimento balanceado. El rendimiento reproductivo de las hembras fue mejorado cuando se alimentó con poliqueto y pota, lográndose la maduración entre 16 y 18 días con alta fecundidad (2627 y 1377 huevos g-1) y fertilidad (2566 y 1364 larvas g-1, respectivamente). The aim was to determine the reproductive performance of females of C. caementarius maintained with natural food. Twenty four females inmature were used (5,2 cm and 2,0 g), conditioned in eight aquarium (50 l) and fed during two months according to each treatment, with giant squid (Dosidicus sp), clam (Semele solid), polychaete (Pseudonereis sp.) and with balanced. The reproductive performance of females was improved when fed with polychaete and giant squid, achieving maturation between 16 to 18 days with higher fecundity (2627 and 1378 eggs g-1) and fertility (2566 and 1364 larvae g-1, respectively).
Photodynamic Therapy as Palliative Therapy for Invasive Syringoid Eccrine Carcinoma of the Auricle: A Case Report  [PDF]
Claudia Gutiérrez Gómez, Anail Alvarez, Ana Lilia Ruelas, Ixchel Landgrave, Alfonso Vallarta, Laura Andrade
Journal of Cancer Therapy (JCT) , 2013, DOI: 10.4236/jct.2013.46125
Abstract:

Recurrent eccrine syringomatous carcinoma is an extremely rare adnexal tumor predominantly found in the head and neck region. We present a case of a 75-year-old woman with a 7-year history of recurrent syringoid eccrine carcinoma in the scalp and auricle. She had undergone five previous oncologic resections and declined further oncologic ablation of the auricle, including temporal bone and external ear canal resection. We performed five sessions of palliative photodynamic therapy using topical aminolevulinic acid HCL 20% (ALA) and between 25 and 33 pulses of Intense Pulsed Light (Quantum) with an intensity of 30 Joules. The ALA incubation time was 3 hours, while the time between each session was 4 weeks. This treatment helped to control ulceration, pain, and swelling. We saw the patient 1 month after the last treatment, by that time she moved and we lost contact.

Salud Laboral. Investigaciones realizadas en Colombia
Verónica Andrade Jaramillo,Ingrid Carolina Gómez
Pensamiento Psicológico , 2008,
Abstract: El presente documento muestra los resultados de una revisión documental realizada con 34 artículos (19 empíricos, 15 teóricos), relativos al tema salud laboral, llevados a cabo en Colombia y publicados, la mayoría, en revistascientíficas colombianas a partir de los a os 90. Tiene como objetivos dar cuenta de manera general sobre las temáticas relacionadas con la salud laboral, que se han investigado en los últimos a os en Colombia, y evidenciar la relevancia que tiene, dentro del estudio de este tema, la investigación e intervención desde las Ciencias Sociales y de la Salud. Se encontró que existe un desarrollo lento, respecto a otros países, en investigaciones sobre el tema, pero que refleja la influencia de las nuevas tendencias del trabajo en la temática. Se concluye que debe promoverse la realización de una investigación que contemple metodologías mixtas y de corte longitudinal para una mayor comprensión de los fenómenos, así como fortalecer la conexión entre la academia y las organizaciones a fin de realizar investigaciones que den soluciones a problemáticas específicas de la relación salud-trabajo.
Estudio mecánico e hidrodinámico de un reactor de gasificación de lecho fluidizado.
W. Rosales,M. D. Andrade,A. Gámez,L. Rojas
Revista de Ingeniería Mecánica , 2008,
Abstract: Se realizó una simulación mediante Elementos Finitos y CFD de un prototipo de gasificador experimental a partir de una geometría propuesta. Se abordan aspectos termomecánicos, al calcularse las deformaciones originadas en el equipo, producto de su peso, en las condiciones de emplazamiento y la carga térmica a la que se somete. También se considera el flujo multifásico gas-sólido presente en el lecho fluidizado, se determina el rango de presiones y velocidades de trabajo del dispositivo, y se estudia la evolución del flujo. Para ello se utiliza el modelo de fuerza de arrastre y presión de sólido de Gidaspow, así como los criterios de velocidad mínima de fluidización de Wen & Yu y Kunii & Levenspiel.A Finite Element and CFD simulations were conducted to a prototype of experimental gasifier, starting from a proposed geometry. Thermomechanic aspects are briefed, calculating the reactor deformation, due to its weight and the thermic load. The gas-solid multiphase flow, present on the fluidized bed was also considered, the working range for the pressure and velocity fields were determined and the flow evolution was studied. The drag force and solid pressure models by Gidaspow, and the minimum fluidization velocity criteria, by Wen & Yu and Kunii & Levenspiel were used.
Sobre la convergencia del método de conjunto activo que controla la inercia para programación cuadrática.
Gómez Suárez, M. A.,Pedreira Andrade, L. P.
Rect@ , 1997,
Abstract:
Servicios y programas de la atención primaria en el proceso docente de higiene y epidemiología
Magali Caraballoso Hernández,Héctor Gómez de Haz,Isora Ramos Valle,Ana Teresa Fari?as Reinoso
Revista Cubana de Salud Pública , 2000,
Abstract: Se describe la estrategia metodológica que se sigue en el Programa de la residencia de Higiene y Epidemiología para garantizar la adquisición de conocimientos y habilidades que le permitan realizar evaluaciones de los programas y servicios. Se indican los contenidos correspondientes a cada curso y las formas de ense anza utilizadas. Se citan evaluaciones realizadas y se se ala que no sólo desarrolla habilidades en los estudiantes, sino también en el personal de servicio, ya que estos participan en todo el proceso de investigación. The methodological strategy used in the Program of Residency of Hygiene and Epidemiology to guarantee the acquisition of knowledge and skills that allow to carry out evaluations of the programs and services is described here. The contents coresponding to each course and the ways to teach them are also approached. Some of the evaluations performed are mentioned and it is stressed that they not only lead to the development of abilities among students, but also in the service staff, since they take part in the whole process of investigation.
Conditions for Singularity of Twist Grain Boundaries between Arbitrary 2-D Lattices  [PDF]
David Romeu, Jose L. Aragón, Gerardo Aragón-González, Marco A. Rodríguez-Andrade, Alfredo Gómez
Crystal Structure Theory and Applications (CSTA) , 2012, DOI: 10.4236/csta.2012.13010
Abstract:

We have shown that the expression =2tan-1/ derived by Ranganathan to calculate the angles at which there exists a CSL for rotational interfaces in the cubic system can also be applied to general (oblique) two-dimensional lattices provided that the quantities 2 and /cos() are rational numbers, with =|b|/|a| and is the angle between the basis vectors a and b. In contrast with Ranganathan’s results, N; given by N=tan2() needs no longer be an integer. Specifically, vectors a and b must have the form a=(1,0); b=(r,tan)

Comparative study of ozonized olive oil and ozonized sunflower oil
Díaz, Maritza F.;Hernández, Rebeca;Martínez, Goitybell;Vidal, Genny;Gómez, Magali;Fernández, Harold;Garcés, Rafael;
Journal of the Brazilian Chemical Society , 2006, DOI: 10.1590/S0103-50532006000200026
Abstract: in this study the ozonized olive and sunflower oils are chemical and microbiologically compared. these oils were introduced into a reactor with bubbling ozone gas in a water bath at room temperature until they were solidified. the peroxide, acidity and iodine values along with antimicrobial activity were determined. ozonization effects on the fatty acid composition of these oils were analyzed using gas-liquid chromatographic technique. an increase in peroxidation and acidity values was observed in both oils but they were higher in ozonized sunflower oil. iodine value was zero in ozonized olive oil whereas in ozonized sunflower was 8.8 g iodine per 100 g. the antimicrobial activity was similar for both ozonized oils except for minimum bactericidal concentrations of pseudomona aeruginosa. composition of fatty acids in both ozonized oils showed gradual decrease in unsaturated fatty acids (c18:1, c18:2) with gradual increase in ozone doses.
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