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Search Results: 1 - 10 of 13473 matches for " Claudia Gomez "
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Learning Pharmacology in Mexico: A Survey of the Use and Views of Pharmacology Textbooks by Undergraduate Medical Students  [PDF]
Rosa Ventura-Martinez, Rebeca Aguirre-Hernandez, Jacinto Santiago-Mejia, Claudia Gomez, Rodolfo Rodriguez
Creative Education (CE) , 2014, DOI: 10.4236/ce.2014.51009

Background: To date, little is known about the view of medical students towards pharmacology textbooks. This study aimed to investigate the preferences of second-year medical students towards pharmacology textbooks, and to identify the factors involved in book selection. Methods: Second-year medical students of the Medical School at the National University of Mexico (classes of 2010, 2011, and 2012) were asked to select their preferred textbook for studying pharmacology and preparing for exams from a list of nine textbooks. They also completed a 19-item questionnaire to identify and evaluate the reasons for their preferences. Results: A total of 1323 students completed the questionnaire, representing 45.59% of all medical students enrolled in 2010-2012. The two textbooks most preferred by students were Goodman & Gilman (25.3%) and Rodriguez et al. (27.3%); preferences for the other books were Harvey & Champe (13.9%), Rang et al. (13.5%), or Katzung et al. (12.3%), and others (7.6%). The usefulness and the adequacy of content were deemed equally important by students when choosing a textbook. Conclusions: Goodman & Gilman, a well-known pharmacology textbook, and Rodriguez et al., a small-volume textbook, were preferred by these second-year medical students; their choices were based on relevant pharmacological information and adequacy of content.

Research on Plants for the Understanding of Diseases of Nuclear and Mitochondrial Origin
Claudia P. Spampinato,Diego F. Gomez-Casati
Journal of Biomedicine and Biotechnology , 2012, DOI: 10.1155/2012/836196
Abstract: Different model organisms, such as Escherichia coli, Saccharomyces cerevisiae, Caenorhabditis elegans, Drosophila melanogaster, mouse, cultured human cell lines, among others, were used to study the mechanisms of several human diseases. Since human genes and proteins have been structurally and functionally conserved in plant organisms, the use of plants, especially Arabidopsis thaliana, as a model system to relate molecular defects to clinical disorders has recently increased. Here, we briefly review our current knowledge of human diseases of nuclear and mitochondrial origin and summarize the experimental findings of plant homologs implicated in each process.
DYNA , 2011,
Abstract: rice husk and clay are materials commonly used in agricultural and industrial processes, for this reason the study of thermal decomposition kinetics in different environments is of scientific interest. in this work the kinetic parameters (activation energy, reaction order and preexponential factor) that characterize the rice husk and clay decomposition processes were calculated by using the thermogravimetric analysis technique (tga). in the testing, nitrogen and air atmospheres were used and the samples were subject to temperature ramps from room temperature to 800 oc , with a heat rate of 10 oc/min. in order to determine the kinetic parameters a method based in the linealized arrhenius?s equation was used. the solution was obtained with statgraphics plus 5.1 software. rice husk results showed kinetic parameters and lifetime lower to those for the clay, explained by its high durability and degradation resistance.
Pe?uela Gomez Sandra Milena,Brieva Rico Claudia Isabel
Revista de la Facultad de Medicina Veterinaria y de Zootecnia , 2007,
Abstract: La estomatitis en ofidios es una condición de frecuente diagnóstico en la clínica de animales silvestres. Se relaciona principalmente con eventos estresantes como deficiencias medioambientales, nutricionales o una enfermedad subyacente, las cuales terminan favoreciendo el crecimiento de gérmenes patógenos y, de esta forma, llevan a la muerte del animal. Los signos clínicos pueden pasar inadvertidos por un tiempo variable, por lo que se recomienda hacer revisiones periódicas a los ofidios en cautiverio. Debido a que es una entidad multifactorial, uno o varios agentes etiológicos se implican como causales y perpetuantes de la condición, por lo que es de gran importancia someter las muestras colectadas a análisis específicos, para así poder identificarlos y garantizar un mayor éxito en el momento de instaurar un tratamiento. En casos avanzados el pronóstico casi siempre es malo debido a la posibilidad de una diseminación hematógena, con sus efectos secundarios como neumonía y osteomielitis, o por continuidad, causando gastroenteritis. Por ello, la principal herramienta de combate frente a la entidad es minimizar la exposición de los ofidios a factores predisponentes o estresantes, que sin lugar a dudas ponen en peligro la vida del animal. Infectious stomatitis in ophidians is a frequent clinical condition in the management of wild animals in captivity. It is mainly associated with stress, environmental and nutritional deficiencies or with other diseases that increases the risk of growing pathogenic organisms, causing the death of the animal. Clinical signs could not be easy to detect and therefore it is recommended to carry out periodic monitoring of snakes in captivity. Due to the multi-factorial condition, one or several etiologic agents can cause or perpetuate the disease, being very important the continuous collection of mouth smear to perform specific analysis such as cultures and antibiograms, in order to guarantee a successful identification and treatment. In advanced cases, the prognosis is usually poor due to septicemia and secondary effects such as pneumonia and osteomielitis or gastroenteritis by single continuity through the digestive tract and; therefore the main resource against this disease is to minimize the exposition of the snake to predisposing factors or stress that could threaten their life.
DYNA , 2011,
Abstract: La cáscara de arroz y la arcilla son materiales comúnmente usados en procesos agrícolas e industriales, por lo cual es de interés científico el estudio de la cinética de sus descomposiciones térmicas en diferentes atmósferas. En este trabajo se estimaron los parámetros cinéticos (energía de activación, orden de reacción y factor preexponencial) y el tiempo de vida que caracterizan el proceso de descomposición de la cáscara de arroz y la arcilla, mediante el uso de la técnica de análisis termogravimétrico (TGA). Se usaron en ambos casos atmósferas de nitrógeno y aire exponiendo las muestras a un programa de temperatura controlada en un rango de temperatura ambiente hasta 800 oC, con velocidad de calentamiento de 10 oC/min. Para la determinación de los parámetros cinéticos se utilizó un método basado en la linealización de la ecuación de Arrhenius, cuya solución se obtuvo por medio del software StatGraphics Plus 5.1. Los resultados obtenidos en el caso de la cáscara de arroz, presentan parámetros cinéticos y tiempos de vida inferiores a los mostrados por la arcilla, indicando para esta última altadurabilidad y resistencia a la degradación.
Parasitosis intestinales en una población pediátrica de la ciudad de Rosario, Santa Fe, Argentina
Indelman,Paula; Echenique,Claudia; Bertorini,Griselda; Racca,Liliana; Gomez,Carlos; Luque,Alicia; Magaró,Hortensia María;
Acta bioqu?-mica cl?-nica latinoamericana , 2011,
Abstract: faeces from 112 children patients (51 girls and 61 boys) ranging from 4 months old to 16 years old were studied. these patients were assisted in ten public health care centres in rosario. the aim of this work was: to determine the incidence of enteric parasites in children, and to evaluate and compare parasite prevalence in the following periods: 1983/1984, 1990/1991, 1992/1993 and 2007/2008. forty-one per cent of the samples showed protozoa and helmints. a decrease in the percentage of polyparasitized patients and an increase in the monoparasitized ones was observed when compared to previous years. blastocystis hominis was found to increase in 2007/2008 while giardia lamblia remained unaltered in the four periods studied. the occurrence of entamoeba coli was found to decrease in the 1992/1993 period while ascaris lumbricoides increased with time. these were the most common parasites found in the population studied. enteric parasites decreased in children. the occurrence of parasites could be due to different socio-environmental factors: malnutrition, climate changes, and an increase both in temperature and humidity. however, a decrease in the levels of parasitosis was observed, which could be due to public health environmental policies, prevention campaigns and deparasitization from the different health care centres of the city.
Acompanhamento a longo prazo de pacientes com indica??o de desfibrilador implantável como preven??o primária de morte súbita
Hadid, Claudio;Avellana, Patricia;Di Toro, Darío;Gomez, Claudia Fernández;Visser, Miguel;Prieto, Noemí;
Arquivos Brasileiros de Cardiologia , 2008, DOI: 10.1590/S0066-782X2008000500006
Abstract: background: recent madit ii and scd-heft trials have led to an expansion of indications for use of prophylactic implantable cardioverter defibrillator (icd) in patients with severe left-ventricular impairment. this therapy has not been fully adopted in our health care system, mainly due to its high cost. objective: to assess total mortality of scd-heft-like patients from our daily practice who are under stable, optimal medical treatment and who have not received an icd; and to compare it to that of the placebo arm of the scd-heft trial. methods: scd-heft-like patients identified from office medical records were included in our study. total mortality was assessed by telephone contact. statistical analysis was performed by student's t-test, mann-whitney test or c2 test, depending on the type of variable. cumulative mortality rates were calculated according to the kaplan-meier method. results: our study comprised 102 patients (seventy-four of which were men) with a median age of 64 years, and an overall median ejection fraction of 25%. we found no differences between our patients and scd-heft patients across these 3 variables. over a 19.6-month follow-up period, 21 patients died (20.6%) vs. 28.8% of the scd-heft patients. this difference was not statistically significant (p = 0.08). conclusion: scd-heft-like patients from our practice had no difference in mortality rate than patients enrolled in the placebo arm of the scd-heft trial. these results suggest that the scd-heft population is representative of our patients.
Proposi??o de um método de análise coletiva dos acidentes de trabalho no hospital
Osório, Claudia;Machado, Jorge Mesquita Huet;Minayo-Gomez, Carlos;
Cadernos de Saúde Pública , 2005, DOI: 10.1590/S0102-311X2005000200018
Abstract: the article presents a method for the analysis of work-related accidents in hospitals, with the double aim of analyzing accidents in light of actual work activity and enhancing the vitality of the various professions that comprise hospital work. this process involves both research and intervention, combining knowledge output with training of health professionals, fostering expanded participation by workers in managing their daily work. the method consists of stimulating workers to recreate the situation in which a given accident occurred, shifting themselves to the position of observers of their own work. in the first stage of analysis, workers are asked to show the work analyst how the accident occurred; in the second stage, the work accident victim and analyst jointly record the described series of events in a diagram; in the third, the resulting record is re-discussed and further elaborated; in the fourth, the work accident victim and analyst evaluate and implement measures aimed to prevent the accident from recurring. the article concludes by discussing the method's possibilities and limitations in the hospital setting.
barbosa barbosa helber de jesús,Andrade Fonseca. Jenny Patricia,Gomez Acevedo Claudia Marcela,Castellanos Leonardo
Acta Biológica Colombiana , 2010,
Abstract: La investigación se desarrolló con el fin de implementar una metodología que permitiera la realización de ensayos de interacciones alelopáticas entre corales y esponjas, minimizando la interacción física provocada por el uso de dispositivos que producen roce y efecto abrasivo sobre los pólipos del coral. Se llevó a cabo un estudio de preformulación utilizando polímeros con características mucoadhesivas sobre mucus que recubre los pólipos de coral, con el fin de obtener un gel, incorporando en las formulaciones un extracto de la esponja Cliona delitrix. Se caracterizaron propiedades reológicas como extensibilidad y adherencia, así como la capacidad mucoadhesiva de las formulaciones propuestas. Estas mostraron una buena estabilidad física frente a las condiciones del medio marino tanto in vitro como in situ. De igual manera, se dise ó un dispositivo que facilitó la aplicación del gel sobre la superficie de los corales por parte de los buzos en el arrecife coralino. Finalmente se estudió el comportamiento de liberación al medio acuoso simulado del gel con el extracto de la esponja objeto de estudio
Evaluation of the Fungicidal Activity of Leaves Powders and Extracts of Fifteen Mexican Plants Against Fusarium oxysporum f.sp. gadioli (Massey) Snyder and Hansen
Claudia Garduno Pizana,Laura Leticia Barrera Necha,Ma. Yolanda Rios Gomez
Plant Pathology Journal , 2010,
Abstract: Fusarium oxysporum f. sp. gladioli represent one of the problems of greater importance in the culture of gladiolus. The resistance of this fungus to the fungicides has stimulated the search of new alternatives control measures. The natural plant extracts used in the study were safer to the environment and effective in the control of the plant pathogen tested. The present paper describes the in vitro fungicidal or fungistatic effect of powders (20 mg mL-1) and of aqueou, methanol and hexane extracts (5%) of 15 plant species on the development of F. oxysporum f. sp. gladioli on artificial growth media and volatile compound identification. Twelve plant species showed antifungal activity. The hexane extract of Chenopodium ambrosioides (by its fungicidal activity), the methanol extract with Spondias purpurea and Psidium guajava, as well as the aqueous extract of L. esculenta and Guazuma ulmifolia inhibited the mycelia growth with a percentage superior to 50%. Also, the powders of Byrsonima crassifolia diminished the percentage germination and sporulation of the pathogen. All the species presented antifungal activity in form of methanol extract. The 80% of the plant powders increased the rate of mycelial growth of the fungus. By chromatography of gases and spectrometry of masses, 90 volatile compounds in the powders and extracts were identified that showed activity on the fungus. The majority of the compounds were fatty acids (18.8%), monoterpenes (4.2%), sesquiterpenes (23.6%) and phenolic compound (6.3%). The high chemical diversity of the analyzed plant species, differentially affected the development of the fungus, either for the individual compounds or for synergism of some of them.
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