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Search Results: 1 - 10 of 405523 matches for " LILIAN M.; FERRA SALAZAR "
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Utilización del medio de cultivo UIT-A en la obtención de biomasa para la identificación bioquímica micobacteriana
MEDEROS CUERVO,LILIAN M.; FERRA SALAZAR,CARIDAD; VALDIVIA,JOSE A.;
Revista Cubana de Medicina Tropical , 1995,
Abstract: se compara el medio de cultivo sólido uit-a con el lowenstein jensen, para la obtención de biomasa en el montaje del test bioquímico de identificación de micobacterias "no tuberculosas" (mnt), con el objetivo de valorar la posibilidad de utilización como medio de cultivo para el montaje y análisis de dichas pruebas bioquímicas. los resultados obtenidos en los 2 medios de cultivo utilizados fueron iguales, por lo que se recomienda el uso del medio de cultivo uit-a fundamentalmente para aquellas cepas con crecimiento pobre o escaso.
Utilización del medio de cultivo UIT-A en la obtención de biomasa para la identificación bioquímica micobacteriana
LILIAN M. MEDEROS CUERVO,CARIDAD FERRA SALAZAR,JOSE A. VALDIVIA
Revista Cubana de Medicina Tropical , 1995,
Abstract: Se compara el medio de cultivo sólido UIT-A con el Lowenstein Jensen, para la obtención de biomasa en el montaje del test bioquímico de identificación de micobacterias "no tuberculosas" (MNT), con el objetivo de valorar la posibilidad de utilización como medio de cultivo para el montaje y análisis de dichas pruebas bioquímicas. Los resultados obtenidos en los 2 medios de cultivo utilizados fueron iguales, por lo que se recomienda el uso del medio de cultivo UIT-A fundamentalmente para aquellas cepas con crecimiento pobre o escaso.
Estudio de la susceptibilidad en cepas de Mycobacterium avium-intracellulare empleando el método de macrodilución en caldo
MEDEROS CUERVO,LILIAN M; FERRA SALAZAR,CARIDAD; JIMENEZ MISAS,CARLOS A; VALDIVIA ALVAREZ,. JOSE A;
Revista Cubana de Medicina Tropical , 1995,
Abstract: se utilizó el método de macrodilución en caldo para determinar la resistencia y/o sensibilidad de 10 cepas de micobacterias no tuberculosas (mnt) pertenecientes al complejo mycobacterium avium-intracellulare (mai), aisladas de pacientes sintomáticos respiratorios. las drogas empleadas fueron: isoniacida, ethambutol, rifampicina, estreptomicina, pirazinamida, gentamicina y amikacina. con respecto a la susceptibilidad de las cepas en estudio, encontramos la mayor sensibilidad frente a las drogas ethambutol, amikacina y gentamicina. se analizó la posibilidad de sustitución del medio de cultivo líquido middlebrook 7h9, por el medio de cultivo líquido uit-l. se logró la normalización del método y se obtuvo acortamiento en el tiempo de lectura al utilizar el medio uit-l.
Estudio taxométrico de especies del género Mycobacterium aisladas en Cuba
FERRA SALAZAR,CARIDAD; MEDEROS CUERVO,LILIAN M; FONSECA,MAGDALENA; VALDIVIA ALVAREZ,JOSE A;
Revista Cubana de Medicina Tropical , 1996,
Abstract: 40 straing of the mycobacterium genus corresponding to 12 species, which were subjected to 62 microbiological and biochemical tests, were studied. each one was considered as a character. as a result of the similitude coefficient and their grouping, 9 phenomes represented by: phenome i (mycobacterium fortitum), phenome ii (mai complex), phenome iii (mycobacterium phlei), phenome iv (mycobacterium triviale), phenome v (mycobacterium smegmatis), phenome vi (mycobacterium gordonae), phenome vii (mycobacterium szulgai), phenome viii (mai complex), and phenome ix (mycobacterium scrofulaceum), were obtained. the strain identification work was consistent with grouping from the phenotypic point of view.
Estudio taxométrico de especies del género Mycobacterium aisladas en Cuba
CARIDAD FERRA SALAZAR,LILIAN M MEDEROS CUERVO,MAGDALENA FONSECA,JOSE A VALDIVIA ALVAREZ
Revista Cubana de Medicina Tropical , 1996,
Abstract: Se estudiaron 40 cepas del género Mycobacterium correspondientes a 12 especies las cuales fueron sometidas a 62 pruebas microbiológicas y bioquímicas, consideradas cada una como un carácter. Como resultado de los coeficientes de similitud y su agrupación se obtuvieron 9 fenones, representados por: Fenón I (Mycobacteriu fortuitum), Fenón II (Complejo MAI), Fenón III (Mycobacterium phlei), Fenón IV (Mycobacterium triviale), Fenón V (Mycobacterium smegmatis), Fenón VI (Mycobacterium gordonae), Fenón VII (Mycobacterium szulgai), Fenón VIII (Complejo MAI) y Fenón IX (Mycobacterium scrofulaceum). El trabajo de identificación de las cepas fue coherente con la agrupación desde el punto de vista fenético. 40 straing of the Mycobacterium genus corresponding to 12 species, which were subjected to 62 microbiological and biochemical tests, were studied. Each one was considered as a character. As a result of the similitude coefficient and their grouping, 9 phenomes represented by: Phenome I (Mycobacterium fortitum), Phenome II (MAI Complex), Phenome III (Mycobacterium phlei), Phenome IV (Mycobacterium triviale), Phenome V (Mycobacterium smegmatis), Phenome VI (Mycobacterium gordonae), Phenome VII (Mycobacterium szulgai), Phenome VIII (MAI Complex), and Phenome IX (Mycobacterium scrofulaceum), were obtained. The strain identification work was consistent with grouping from the phenotypic point of view.
Estudio de la susceptibilidad en cepas de Mycobacterium avium-intracellulare empleando el método de macrodilución en caldo
LILIAN M MEDEROS CUERVO,CARIDAD FERRA SALAZAR,CARLOS A JIMENEZ MISAS,. JOSE A VALDIVIA ALVAREZ
Revista Cubana de Medicina Tropical , 1995,
Abstract: Se utilizó el método de macrodilución en caldo para determinar la resistencia y/o sensibilidad de 10 cepas de micobacterias no tuberculosas (MNT) pertenecientes al Complejo Mycobacterium avium-intracellulare (MAI), aisladas de pacientes sintomáticos respiratorios. Las drogas empleadas fueron: isoniacida, ethambutol, rifampicina, estreptomicina, pirazinamida, gentamicina y amikacina. Con respecto a la susceptibilidad de las cepas en estudio, encontramos la mayor sensibilidad frente a las drogas ethambutol, amikacina y gentamicina. Se analizó la posibilidad de sustitución del medio de cultivo líquido Middlebrook 7H9, por el medio de cultivo líquido UIT-L. Se logró la normalización del método y se obtuvo acortamiento en el tiempo de lectura al utilizar el medio UIT-L.
Papel de los polimorfismos -238 y -308 del promotor del factor de necrosis tumoral alfa en la patogenia y respuesta al tratamiento anti- factor de necrosis tumoral alfa en artritis reumatoide
Llanos M,Carolina; Soto S,Lilian; Sabugo S,Francisca; Bastías Ch,M José; Salazar A,Lorena; Aguillón G,Juan C; Cuchacovich T,Miguel;
Revista médica de Chile , 2005, DOI: 10.4067/S0034-98872005000900014
Abstract: rheumatoid arthritis (ra) is a systemic autoimmune disease that affects 0.8% of the world population, it affects the synovial membrane of joints and the clinical presentation encompasses a wide spectrum, ranging from a mild to a severe and erosive disease that causes joint and cartilage destruction which finally provokes irreversible structural damage and patient disability. in the last years, there have been important advances in the pathogenesis of this disease, the efforts have been concentrated on pro-inflammatory cytokines such as tumor necrosis factor alpha (tnfa). this protein guides numerous events in the synovial and systemic inflammatory process and is encoded in the major histocompability complex (mhc), one of the most polymorphic of the genome. polymorphisms affecting the tnfa gene and its regulatory regions are associated with ra prevalence and course. there is a possible association between these polymorphisms and the clinical response to the use of monoclonal antibodies anti-tnfa. the possibility that the determination of genotypes -238 and -308 may have prognostic and therapeutic consequences is debated nowadays (rev méd chile 2005; 133: 1089-95).
Relevance of Epistemological Pluralism for Resource Management Policies  [PDF]
Mónica Gómez Salazar
Open Journal of Philosophy (OJPP) , 2015, DOI: 10.4236/ojpp.2015.56039
Abstract: The common believe of a single successful form of knowing the reality is misleading. A brief analysis of many human activities reveals a pluralistic perspective of several coexisting conceptual schemes that underlie the form in which women and men know and constitute the world in which we live. Here, I will discuss the necessity of taking seriously this pluralistic perspective when developing conceptual frameworks of human activities. As an example of great interest and importance, I will consider the case of resource management that has to contemplate the conservation and the response of ecosystems to human activities that may lead to irreversible damage. Ecosystems’ activity occurs over a wide range of space and time scales and, hence, policies and proposals of solutions to ecological problems should avoid narrow and monochromatic approaches. Specifically, the Pemon perspective of fire is a good example to show that for more robust and flexible resource management we need the knowledge and experience of different cultural and disciplinary groups.
Nuevas armas inmunológicas para la medicina del siglo XXI: Terapia biológica basada en el uso de anticuerpos monoclonales de última generación
Aguillón G,Juan C; Contreras L,Juan; Dotte G,Andrés; Cruzat C,Andrea; Catalán M,Diego; Salazar A,Lorena; Molina S,María Carmen; Guerrero P,Julia; López N,Mercedes; Soto S,Lilian; Salazar-Onfray,Flavio; Cuchacovich T,Miguel;
Revista médica de Chile , 2003, DOI: 10.4067/S0034-98872003001200013
Abstract: the fusion of a murine b cell and a myeloma cell generates a hybridoma that produces monoclonal antibody (mab). these murine mab induce the hama (human anti-mouse antibodies) response. murine mab have been modified by genetic engineering, producing molecules with a higher proportion of human protein. at present, chimeric, humanized and fully human mab are available. mab block interactions between target molecules and their ligands or trigger the lyses of mab-coated tumor cells. numerous mab have been developed using the recombinant dna technology and several are available in the market. trastuzumab, against her2/neu, is useful in breast cancer; rituximab, against cd20 in b lymphocytes is useful in lymphoma; alemtuzumab, against cd52 is used in lymphoma and leukemia; daclizumab and basiliximab block the il-2 receptor interaction and reduce acute rejection in kidney transplantion; abciximab, an antagonist of gpiib/iiia platelet receptor, is used in patients undergoing acute coronary syndromes. in autoimmunity diseases, blocking tumor necrosis factor by infliximab and adalimumab has demonstrated excellent results. thus, infliximab is useful in the treatment of rheumatoid arthritis (ra), crohn's disease and ulcerative colitis while adalimumab is the first fully human mab available for ra. infliximab and adalimumab reduce signs and symptoms in ra and they also interfere with progression of joint damage. finally, the direct benefits of antagonist treatment can occur at the expense of a major adverse effect in some other biological function (rev méd chile 2003; 131: 1445-53).
Activity coefficients of potassium chloride in aqueous solutions of potassium chloride and potassium phthalate
Marques,A.; Ferra,M.I.A.; Bandeira,M.H.;
Portugaliae Electrochimica Acta , 2006,
Abstract: mean activity coefficients of potassium chloride were determined in aqueous solutions of potassium chloride and potassium phthalate, in the temperature range 10-50 oc and ionic strength range 0.05-4 mol kg-1, from potentiometric measurements on a galvanic cell without liquid junction. by processing the results using the pitzer model, interaction parameters for potassium phthalate were calculated as well as their temperature dependence.
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