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Search Results: 1 - 10 of 199175 matches for " Katia N. Nchimi "
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Synthesis, Characterization and Antimicrobial Studies of Co(II), Ni(II), Cu(II) and Zn(II) Complexes of (E)-2-(4-Dimethylbenzydimino)-Glycylglycine, (Glygly-DAB) a Schiff Base Derived from 4-Dimethylaminobenzaldehyde and Glycylglycine  [PDF]
Maurice Kuate, Mariam Asseng Conde, Katia N. Nchimi, Awawou G. Paboudam, Sally-Judith E. Ntum, Peter T. Ndifon
International Journal of Organic Chemistry (IJOC) , 2018, DOI: 10.4236/ijoc.2018.83022
Abstract: A tridentate Schiff base ligand, (E)-2-(4-dimethylbenzydimino) glycylglycine (glygly-DAB), derived from the condensation of 4-Dimethylaminobenzaldehyde (DAB) and glycylglycine (glygly) together with its Co(II), Ni(II), Cu(II) and Zn(II) complexes have been synthesized and characterized using various physico-chemical methods including C,H,N elemental analysis, melting point determination, molar conductivity measurement, IR, 1H NMR and UV-Vis. The ligand and metal complexes were screened in vitro for antimicrobial and antifungal activities on four bacterial strains (Staphylococcus aureus, Escherichia coli, Salmonella thyphi and Pseudomonas aeruginosa) and two fungal strains (Candida albicans and Cryptococcus neoformans). glygly-DAB showed remarkable antifungal activities on all the fungal strains and antibacterial activities on one bacterial strain.
Rapid examination of microorganisms in ballast waters
Soto,Katia; Durán,René; Kuznar,Juan;
Revista de biología marina y oceanografía , 2005, DOI: 10.4067/S0718-19572005000100010
Abstract: se examinaron las comunidades microbianas del agua de lastre mediante microscopía de epifluorescencia. se realizaron análisis cualitativos y cuantitativos con el fin de probar si los perfiles microbianos encontrados en diferentes barcos estaban relacionados con sus itinerarios de viaje y/o el manejo de sus tanques de agua de lastre. las concentraciones de vlps ("virus-like particles") y bacterias presentaron diferencias evidentes en barcos que arribaron a un mismo puerto. estas diferencias son coherentes con los respectivos itinerarios de viaje. además, la extensión del tiempo de confinamiento del agua de lastre en un tanque determina que algunas formas bacterianas predominen progresivamente sobre otras. lo anterior permitiría, en principio, determinar si el agua de lastre ha sido renovada en mar abierto antes de arribar a puerto. los resultados presentados se restringen al examen del agua de lastre de unos pocos barcos. sin embargo, pensamos que una mayor investigación en esta área determinará que la microscopía de epifluorescencia será cada vez más útil para caracterizar microbiológicamente las aguas de lastre, contribuyendo así a develar su historia reciente
Carências e desejos: estudo sobre a op??o pela esteriliza??o entre mulheres residentes na Regi?o Sul do Município de S?o Paulo, em 1992
Pirotta, Katia C. M.;Schor, Néia;
Saúde e Sociedade , 1999, DOI: 10.1590/S0104-12901999000200003
Abstract: the present study aims at discussing the women's option for sterilization. 215 sterilized women residing in the southern area of the city of s?o paulo in 1992 where interviewed. the use of contraceptive methods before sterilization, the reasons of this choice and the satisfaction with sterilization were analysed. from among women that have used reversible methods before sterilization, 67% referred the pill. 67% of women referred problems with the precedent method as the reason for leaving its use. 91% affirmed they were satisfied with the irreversible method. 74% answered the sterilization brought no changes in their lives and 60% answered there was no modification in affective and sexual relationship. the analysis of the questions about the situation of woman after sterilization, yielded that the health problems attributed to reversible methods and the security in view of unwanted pregnancy are the main elements determining the satisfaction with the sterilization. the analysis undertaken in this study suggests the option for sterilization is related to the problems derived from the indiscriminate use of pill and lack of effective assistance to reproductive health, pointing to importance of implementing health programs in this field.
Paratesticular leiomyosarcoma treated by enucleation
Lopes, Roberto I.;Leite, Katia R.;Lopes, Roberto N.;
International braz j urol , 2006, DOI: 10.1590/S1677-55382006000100011
Abstract: spermatic cord leiomyosarcomas are rare tumors and standard treatment consists of radical orchiectomy and high cord ligation. we report a case of a paratesticular leiomyosarcoma successfully treated by enucleation. a 22-year-old man presented with a 6-months history of inguinal pain. physical examination revealed a right paratesticular nodule about 0.5 cm in diameter. inguinal exploration and nodule biopsy were performed. it was thought to be a benign epididymal nodule on a quick section and the tumor was enucleated and sent for paraffin section. histology and immunohistochemistry were compatible with leiomyosarcoma. the patient was advised to undergo radical orchiectomy with high cord ligation. however, he refused surgery. an alternative approach with clinical, biochemical and radiological follow-up was adopted. the patient has been followed up for thirteen years and shows no evidence of disease.
La legitimación de la Ciencia social en las bases de datos científicas más importantes para América Latina
Morales Gaitán, Katia Andrea;Aguado López, Eduardo;
Latinoamérica. Revista de estudios Latinoamericanos , 2010,
Abstract: we analyze, from the point of view of the sociology of science three constituent axes of its field. the first level rescues the epistemology of the social scientific production. the second focuses on the construction of the legitimacy on scientists through their publications. finally, we refer throught the most important indicators for latin-america, generated in the scientific databases. concluding that the use of technologies of information and communication are channels that legitimize the results of research and productivity in the scientific communities.
Comercializando fantasias: a representa??o social da prostitui??o, dilemas da profiss?o e a constru??o da cidadania
Guimar?es, Katia;Merchán-Hamann, Edgar;
Revista Estudos Feministas , 2005, DOI: 10.1590/S0104-026X2005000300004
Abstract: this article presents facts, perceptions and social representations on the daily life of female commercial sex workers (fcsw). we evaluated 8 educational intervention programs on std/aids addressed to fcsw in cities of southern, south-eastern and north-eastern brazilian regions. in those places, we conducted in-depth interviews and focal groups. results indicate that the representation of a woman who sells her body is resignified as the performance of erotic fantasies. possibilities of greater autonomy are hampered by discrimination and psychological tension. client and police-driven violence were remarkable. condom use plays a relevant role in sex negotiation but it is neglected when relationships involve affection or as a result of competition. we conclude, from the perspective of autonomy, that fcsw's autonomy is limited by social class, economical crisis and stigma, leading to discrimination, violence and std/hiv contagion risk.
La legitimación de la Ciencia social en las bases de datos científicas más importantes para América Latina
Katia Andrea Morales Gaitán,Eduardo Aguado López
Latinoamérica. Revista de estudios Latinoamericanos , 2010,
Abstract: Se analizan desde la Sociología de la ciencia tres ejes de su campo. El primero, rescata la epistemología de la producción científica social. El segundo, trata la construcción de la legitimidad de los científicos a través de sus publicaciones. El tercero, refiere el estudio de los indicadores más importantes para América Latina generados por la Cienciometría. Se concluye que la incorporación de las Tecnologías de Información y Comunicación son canales a través de los cuales se legitiman los resultados de investigación, productividad y visibilidad entre las comunidades científicas.
Paratesticular leiomyosarcoma treated by enucleation
Lopes Roberto I.,Leite Katia R.,Lopes Roberto N.
International braz j urol , 2006,
Abstract: Spermatic cord leiomyosarcomas are rare tumors and standard treatment consists of radical orchiectomy and high cord ligation. We report a case of a paratesticular leiomyosarcoma successfully treated by enucleation. A 22-year-old man presented with a 6-months history of inguinal pain. Physical examination revealed a right paratesticular nodule about 0.5 cm in diameter. Inguinal exploration and nodule biopsy were performed. It was thought to be a benign epididymal nodule on a quick section and the tumor was enucleated and sent for paraffin section. Histology and immunohistochemistry were compatible with leiomyosarcoma. The patient was advised to undergo radical orchiectomy with high cord ligation. However, he refused surgery. An alternative approach with clinical, biochemical and radiological follow-up was adopted. The patient has been followed up for thirteen years and shows no evidence of disease.
Changes in the Ichthyoplankton along the Peruvian Coast during El Ni o Events
Patricia Ayón Dejo,Katia Aronés Flores
Investigaciones Marinas , 2002,
Abstract:
Effects of El Ni o 1997-1998 on Copepod Community Structure at San José Coastal Station (Peru)
Katia Aronés Flores,Patricia Ayón Dejo
Investigaciones Marinas , 2002,
Abstract:
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