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Search Results: 1 - 10 of 225807 matches for " Julio C. Sosa "
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Tuberculosis congénita asociada con tuberculosis materna miliar diseminada
Sosa,Luis Miguel; Cala,Luz Libia; Mantilla,Julio César;
Biomédica , 2007,
Abstract: untreated tuberculosis during pregnancy presents a serious risk for transmission of disease to the newborn and can result in adverse perinatal and obstetrical outcomes. tuberculosis during pregnancy and congenital tuberculosis are infrequent conditions and are difficult to diagnose due the non-specificity of the symptoms. a case report is presented of a woman who had no children previously with disseminated miliary tuberculosis. tuberculosis symptoms appeared immediately after birth of the first child, with a clinical diagnosis on the second month after childbirth, whereupon the patient died. the son, a premature infant, showed disease symptoms from the first day, with primary pulmonary complex and persistent atelectasis due to bronchial obstruction. the obstruction was due to thoracic lymphadenitis and coinfection with cytomegalovirus. the infant received standard treatment and his condition improved.
Tuberculosis congénita asociada con tuberculosis materna miliar diseminada Congenital tuberculosis associated with maternal disseminated miliary tuberculosis
Luis Miguel Sosa,Luz Libia Cala,Julio César Mantilla
Biomédica , 2007,
Abstract: La tuberculosis sin tratamiento en mujeres gestantes es un riesgo definido para la transmisión de la enfermedad al recién nacido y para resultados adversos, obstétricos y perinatales. La tuberculosis en mujeres gestantes y la tuberculosis congénita son afecciones infrecuentes y de difícil diagnóstico por la falta de especificidad de las manifestaciones clínicas. Se presenta el caso de una mujer primigestante con tuberculosis miliar diseminada, con inicio de las manifestaciones en el puerperio inmediato, diagnóstico en el segundo mes del puerperio y desenlace fatal. Además, se presenta el caso de su hijo prematuro con manifestaciones desde el nacimiento, evidencia de complejo pulmonar primario, atelectasia persistente por obstrucción bronquial por las adenopatías e infección por citomegalovirus; recibió tratamiento estándar con mejoría. Untreated tuberculosis during pregnancy presents a serious risk for transmission of disease to the newborn and can result in adverse perinatal and obstetrical outcomes. Tuberculosis during pregnancy and congenital tuberculosis are infrequent conditions and are difficult to diagnose due the non-specificity of the symptoms. A case report is presented of a woman who had no children previously with disseminated miliary tuberculosis. Tuberculosis symptoms appeared immediately after birth of the first child, with a clinical diagnosis on the second month after childbirth, whereupon the patient died. The son, a premature infant, showed disease symptoms from the first day, with primary pulmonary complex and persistent atelectasis due to bronchial obstruction. The obstruction was due to thoracic lymphadenitis and coinfection with cytomegalovirus. The infant received standard treatment and his condition improved.
Competencias conductuales, estrés y calidad de vida en personas VIH+ 100% adherentes. Un análisis en función del estadio clínico de infección
Cázares Robles,óscar; Pi?a López,Julio Alfonso; Sánchez-Sosa,Juan José;
Avances en Psicología Latinoamericana , 2010,
Abstract: a cross-sectional study was carried out with the main objective to assess the effects of psychological variables on quality of life in terms on the clinical stage of the infection among 51 hiv+ persons, whom were 100% adherent. the physical health dimension yielded results as follows: in clinical stage a an effect of current behavioral competencies was observed (f [1, 13] = 13,372; p < 0,001); in stage b, effects included low stress-related factors with of tolerance to ambiguity and tolerance to frustration (f [2, 17] = 19,648; p < 0,001), and in stage c no effect was apparent. for the dimension of psychological health, results revealed: in clinical stage a, an effect of current behavioral competencies (f [1, 13] = 4,899; p < 0,05); in b, stage no effect was found, whereas in stage c low stress-related tolerance to ambiguity had an effect (f [1, 14] = 4,906; p < 0,05). the study suggests definitely effects of psychological variables on quality of life, including both physical and psychological dimensions, with differential role in function of the clinical stage of the infection. some implications are discussed for the development of intervention programs, aimed at improving adherence to medical treatment and quality of life among hiv+ persons.
Competencias conductuales, estrés y calidad de vida en personas VIH+ 100% adherentes. Un análisis en función del estadio clínico de infección
Oscar Cázares Robles,Julio Alfonso Pi?a López,Juan José Sánchez-Sosa
Avances en Psicología Latinoamericana , 2010,
Abstract: A cross-sectional study was carried out with themain objective to assess the effects of psychologicalvariables on quality of life in terms on the clinicalstage of the infection among 51 HIV+ persons,whom were 100% adherent. The physical health dimensionyielded results as follows: in clinical stageA an effect of current behavioral competencies wasobserved (F [1, 13] = 13,372; p < 0,001); in stage B,effects included low stress-related factors with oftolerance to ambiguity and tolerance to frustration(F [2, 17] = 19,648; p < 0,001), and in stage C noeffect was apparent. For the dimension of psychologicalhealth, results revealed: in clinical stage A,an effect of current behavioral competencies (F[1, 13] = 4,899; p < 0,05); in B, stage no effect wasfound, whereas in stage C low stress-related toleranceto ambiguity had an effect (F [1, 14] = 4,906;p < 0,05). The study suggests defi nitely effects ofpsychological variables on quality of life, includingboth physical and psychological dimensions, withdifferential role in function of the clinical stage ofthe infection. Some implications are discussed forthe development of intervention programs, aimedat improving adherence to medical treatment andquality of life among HIV+ persons.
Real-time Optical-flow Computation for Motion Estimation under Varying Illumination Conditions
Julio C. Sosa,Roberto Rodríguez,Víctor H. García Ortega,Rubén Hernández
International Journal of Reconfigurable and Embedded Systems (IJRES) , 2012, DOI: 10.11591/ijres.v1i1.413
Abstract: The optical flow approach has emerged as a major technique for estimating object motion in image sequences. However, the obtained results by most optical flow techniques are poor because they are strongly affected by large illumination changes and by motion discontinuities. On the other hand, there have been two thrusts in the development of optical flow algorithms. One has emphasized higher accuracy; the other faster implementation. These two thrusts have been independently pursed, without addressing the accuracy vs. efficiency trade-offs. The optical flow computation requires high computing resources and is highly affected by changes in the illumination conditions in most of the existing techniques. In this paper, a new strategy for image sequence processing is proposed. The data reduction achieved with this strategy allows a faster optical flow computation. In addition, the proposed architecture is a hardware custom implementation in EP1S60F1020 FPGA showing the achieved performance.
Study of Electromagnetic Fields on Cellular Systems Study of Electromagnetic Fields on Cellular Systems
Julio César Hernández-Pavón,Modesto Sosa,Teodoro Córdova,Gloria Barbosa-Sabanero
Acta Universitaria , 2012,
Abstract: Durante las últimas décadas, el interés por explicar el efecto de la radiación no ionizante, como es el caso de los campos electromagnéticos (CEM) sobre sistemas celulares ha aumentado considerablemente. En este artículo se describe la interacción que existe entre los CEM y sistemas biológicos. Se discute el efecto de la estimulación electromagnética a diferentes frecuencias e intensidades en cultivos celulares. Resultados preliminares al estimular células de neuroblastomas SK-NSH con campos electromagnéticos de extra baja frecuencia (CEM-EBF), CEM que van del rango de 3 a 30 Hz, indican que se induce un estrés celularque se refleja en variaciones en la expresión de proteínas respecto al grupo de células no estimuladas. En particular, la expresión de las proteínas muestra que los CEM-EBF producen cambios en las proteínas presentes en condiciones normales o basales en las células, es decir, aparecen nuevas proteínas o existe un aumento en la cantidad de ellas. In the last decades the interest to study the effect of non-ionizing radiation, such as the electromagnetic fields (EMF) on cellular systems has increased. In this article the interaction between EMF and biological systems is described. An analysis of the effect of the electromagnetic stimulation at different frequencies and intensities on cell cultures is performed. Preliminary results show that the stimulation with extremely low frequency electromagnetic fields (ELF-EMF), EMF from 3 to 30 Hz, on the cellular line of neuroblastomaSK-NSH induces cellular stress. This is reflected by a variation in the proteins expression in comparison with the group of cells no stimulated. In particular, the proteins expression shows that the ELF-EMF produce changes in the current proteins in normal or basal conditionsin the cells, that is, new proteins appear or there is evidence of an increasing in theamount of them.
Un modelo psicológico en los comportamientos de adhesión terapéutica en personas con VIH
Sánchez-Sosa, Juan José;Cázares Robles, óscar;Pi?a López, Julio Alfonso;Dávila Tapia, Mariana;
Salud mental , 2009,
Abstract: introduction hiv infection is a disease that demands a consistent and efficient practice of adherence behaviors related to antiretroviral treatment. however, research findings in the last few years have shown that psychological and social variables (e.g., depression, stress, low motivation, as well as little or no social support) interfere with the practice of those behaviors. this facilitates the clinical progression of the disease, and reduces the quality of life and survival time in people living with hiv. the intersection area between psychology and health involves widely diverse theoretical models, including self-regulation, health beliefs, and the one linking information-motivation-behavior. such models have sought to account for the way in which the addressed variables affect adherence behavior. while analyzing psychological factors, these models usually emphasize either cognitive concepts or adopt a more traditional stance such as relating adherence behavior to personality, motivation, behavioral skills and stress management. although this diversity seems inclusive, it fails to integrate explanations on therapeutic adherence under a more comprehensive theoretical umbrella. thus, the present study was conducted within the scope of an interactive-functional model which attempts to articulate the interaction of sets of biological and psychological variables along four phases. the first involves psychological processes and results variables; the second comprises the diagnostic of hiv infection and later development of other opportunistic diseases; the third contains two types of behavior: therapeutic adherence and disease-related behaviors; the fourth involves conventional biological indicators and health outcomes. this model contrasts with others not only in the sense of proposing an inter-behavioral approach derived from kantor's work, including articulated behavioral and personality theories, but it also proposes an interactive and functional emphasis on anal
Papel del receptor 1 de transferrina en la captación del hierro y su relación con la deficiencia gestacional de hierro y la preeclampsia Function of Receptor 1 in uptaking transferrin and its relation to iron deficiency and iron gestational preeclampsia
Alejandra María Gómez-Gutiérrez,Beatriz Elena Parra-Sosa,Julio César Bueno-Sánchez
Revista Cubana de Obstetricia y Ginecolog?-a , 2013,
Abstract: La anemia ferropénica gestacional afecta al 48 % de las mujeres y se asocia con efectos deletéreos para la madre y el feto. Para la captación del hierro de la gestante es necesaria la expresión en el sincitiotrofoblasto de la glicoproteína receptor 1 de transferrina (TfR1). En ensayos celulares, en modelos animales y en humanos la deprivación de hierro se ha asociado a un aumento en la transcripción y expresión del TfR1, que se ha explicado como un mecanismo compensatorio para la captación del hierro a favor del feto. De otra parte, en alteraciones de la gestación como la preeclampsia se espera un aumento en la expresión del TfR1 placentario, sin embargo se ha evidenciado una reducción de este. Este evento se ha explicado como una regulación de tipo transcripcional relacionada con el factor de transcripción inducible por la hipoxia. El objetivo fue revisar evidencia que soporte que en la reducción de la expresión del TfR1 en preeclampsia, estén implicados cambios en la glicosilación como una modificación postraduccional relacionada con el adecuado plegamiento, maduración y exportación del receptor a la membrana celular. La base de datos Pubmed fue consultada para identificar los artículos más relevantes. Los descriptores usados fueron metabolismo de hierro, anemia, placenta, receptor de transferrrina, preeclampsia, glicosilación. Se propone una regulación postranscripcional relacionada con la glicosilación que explica como, pese al aumento en la expresión del RNA mensajero del TfR1 inducido por la hipoxia en la placenta preeclámptica, se genera una reducción en su expresión. Iron deficiency gestational anemia affects 48 % of women and it is associated with deleterious effects for the mother and her fetus. For mother iron uptake, the syncytiotrophoblast expression of glycoprotein transferrin receptor 1 (TfR1) is required. In cellular trails, in animal models and in humans, iron deprivation has been associated with an increase in TfR1 transcription and expression, which has been explained as a compensatory mechanism for the fetus iron uptake. On the other hand, pregnancy alterations such as preeclampsia are expected to increase in the expression of placental TfR1; however, a reduction of it has shown. This event has been explained as a type transcriptional regulatory factor related to the hypoxia-inducible transcription. Our objective was to review evidence to support that in the reduction of TfR1 preeclampsia expression, changes in glycosylation are involved as a posttranslational modification regarding the appropriate folding, maturation and receptor ex
Un modelo psicológico en los comportamientos de adhesión terapéutica en personas con VIH
Juan José Sánchez-Sosa,óscar Cázares Robles,Julio Alfonso Pi?a López,Mariana Dávila Tapia
Salud mental , 2009,
Abstract: La infección por VIH es un padecimiento que demanda la práctica consistente y eficiente de los comportamientos de adhesión al tratamiento antirretroviral en sí y a otras actividades de apoyo al mismo. Sin embargo, en a os recientes se ha identificado una diversidad de variables psicológicas y sociales (i.e., depresión, estrés, bajos niveles de motivación y carencia de apoyo social, principalmente) que dificultan la práctica de esos comportamientos, favoreciendo así el progreso clínico de la enfermedad y una reducción en la calidad y tiempo de sobrevida en las personas con VIH. En el subcampo de conocimiento conocido como psicología y salud existen diversos modelos teóricos con los que se ha buscado dar cuenta de cómo es que esas variables influyen sobre los comportamientos de adhesión; destacan, principalmente, el autorregulatorio, el de creencias en salud y el de informaciónmotivación- habilidades conductuales. En general, se trata de modelos que, o bien privilegian el análisis de lo psicológico a partir de conceptos de naturaleza cognoscitiva, o bien carecen de análisis de fenómenos como los de estrés y personalidad, así como de los comportamientos asociados a la enfermedad...
Asociación entre los niveles de estrés y depresión y la adhesión al tratamiento en personas seropositivas al VIH en Hermosillo, México
Pi?a López,Julio Alfonso; Dávila Tapia,Mariana; Sánchez-Sosa,Juan José; Togawa,Carlos; Cázares Robles,óscar;
Revista Panamericana de Salud Pública , 2008, DOI: 10.1590/S1020-49892008000600002
Abstract: objectives: to evaluate the association between variables related to stress, reasons, and depression, and adherence to treatment in hiv-positive individuals, and to analyze the robustness according to a theoretical psychology model. methods: this was a cross-sectional study of 25 female and 39 male hiv-positive participants receiving services at the outpatient center for prevention and treatment of hiv/aids and sexually-transmitted diseases (centro ambulatorio para la prevención y atención del vih/sida e infecciones de transmisión sexual) in hermosillo, sonora, mexico. the psychological variables, the degree of treatment adherence, stress-related circumstances, and the severity of depression were examined. rates were calculated for the key variables associated with stress, reasons, and depression. the associations among variables were determined by multiple regression. results: during the month preceding the study, 65.6% of the 64 participants reported having faithfully followed the prescribed treatment, while 34.4% had failed, in some way, to follow the treatment (ˉ2 = 6.250; p = 0.012). regression analysis found that there was only one combination, an intermediate level of stress linked to tolerance of uncertainty and low levels of depression, that was significantly associated (f [3.58] = 3.298; p = 0.027) with adherence to treatment; the combination of these two variables explained 38.2% of the total variance found. conclusions: the combination of stress levels with tolerance of uncertainty and depression could be used as a predictor for true compliance with prescribed treatment plans. these results should be taken into account when designing intervention and treatment-adherence campaigns in hiv-positive individuals.
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