966 resultados para Competent authority
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Presenta las actividades de cooperacion tecnica entre los paises en desarrollo, realizadas por el CDCC en lo que se refiere al campo de la informacion y a los sectores agricola, social, educacion, transporte y comunicaciones, comercio internacional y finanzas, energia y recursos naturales.
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We evaluated the ability of dogs naturally infected with Leishmania (Leishmania) infantum chagasi to transfer the parasite to the vector and the factors associated with transmission. Thirty-eight infected dogs were confirmed to be infected by direct observation of Leishmania in lymph node smears. Dogs were grouped according to external clinical signs and laboratory data into symptomatic (n= 24) and asymptomatic (n= 14) animals. All dogs were sedated and submitted to xenodiagnosis with F1-laboratory-reared Lutzomyia longipalpis. After blood digestion, sand flies were dissected and examined for the presence of promastigotes. Following canine euthanasia, fragments of skin, lymph nodes, and spleen were collected and processed using immunohistochemistry to evaluate tissue parasitism. Specific antibodies were detected using an enzyme-linked immunosorbent assay. Antibody levels were found to be higher in symptomatic dogs compared to asymptomatic dogs (p= 0.0396). Both groups presented amastigotes in lymph nodes, while skin parasitism was observed in only 58.3% of symptomatic and in 35.7% of asymptomatic dogs. Parasites were visualized in the spleens of 66.7% and 71.4% of symptomatic and asymptomatic dogs, respectively. Parasite load varied from mild to intense, and was not significantly different between groups. All asymptomatic dogs except for one (93%) were competent to transmit Leishmania to the vector, including eight (61.5%) without skin parasitism. Sixteen symptomatic animals (67%) infected sand flies; six (37.5%) showed no amastigotes in the skin. Skin parasitism was not crucial for the ability to infect Lutzomyia longipalpis but the presence of Leishmania in lymph nodes was significantly related to a positive xenodiagnosis. Additionally, a higher proportion of infected vectors that fed on asymptomatic dogs was observed (p= 0.0494). Clinical severity was inversely correlated with the infection rate of sand flies (p= 0.027) and was directly correlated with antibody levels (p= 0.0379). Age and gender did not influence the transmissibility. Our data show that asymptomatic dogs are highly infective and competent for establishing sand fly infection, indicating their role in maintaining L. (L.) infantum chagasi cycle as well as their involvement in VL spreading in endemic areas. © 2013 Elsevier B.V.
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Contiene la asistencia, organización de los trabajos y resumen de los debates de la reunión convocada con el propósito de analizar fórmulas para el fortalecimiento de la capacidad negociadora de los grupos latinoamericanos en foros internacionales relacionados con el desarrollo de los recursos marinos.
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Breve reseña del archivo de autoridad de autores institucionales del Sistema de Información para el Caribe en Materia de Planificación Económica y Social.
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Contiene la lista de autores institucionales del Centro de Documentación de CEPAL, Puerto España.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Introduction: Authority records interchange requires establishing and using metadata standards, such as MARC 21 Format for Authority Data, format used by several cataloging agencies, and Metadata Authority Description Schema (MADS), that has received little attention and it is a little widespread standard among agencies. Purpose: Presenting an introductory study about Metadata Authority Description Schema (MADS). Methodology: Descriptive and exploratory bibliographic research. Results: The paper address the MADS creation context, its goals and its structure and key issues related to conversion of records from MARC 21 to MADS. Conclusions: The study concludes that, despite its limitations, MADS might be used to create simple authority records in Web environment and beyond libraries context.
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With the “social turn” of language in the past decade within English studies, ethnographic and teacher research methods increasingly have acquired legitimacy as a means of studying student literacy. And with this legitimacy, graduate students specializing in literacy and composition studies increasingly are being encouraged to use ethnographic and teacher research methods to study student literacy within classrooms. Yet few of the narratives produced from these studies discuss the problems that frequently arise when participant observers enter the classroom. Recently, some researchers have begun to interrogate the extent to which ethnographic and teacher research methods are able to construct and disseminate knowledge in empowering ways (Anderson & Irvine, 1993; Bishop, 1993; Fine, 1994; Fleischer. 1994; McLaren, 1992). While ethnographic and teacher research methods have oftentimes been touted as being more democratic and nonhierarchical than quantitative methods—-which oftentimes erase individuals lived experiences with numbers and statistical formulas—-researchers are just beginning to probe the ways that ethnographic and teacher research models can also be silencing, unreflective, and oppressive. Those who have begun to question the ethics of conducting, writing about, and disseminating knowledge in education have coined the term “critical” research, a rather vague and loose term that proposes a position of reflexivity and self-critique for all research methods, not just ethnography or teacher research. Drawing upon theories of feminist consciousness-raising, liberatory praxis, and community-action research, theories of critical research aim to involve researchers and participants in a highly participatory framework for constructing knowledge, an inquiry that seeks to question, disrupt, or intervene in the conditions under study for some socially transformative end. While critical research methods are always contingent upon the context being studied, in general they are undergirded by principles of non-hierarchical relations, participatory collaboration, problem-posing, dialogic inquiry, and multiple and multi-voiced interpretations. In distinguishing between critical and traditional ethnographic processes, for instance, Peter McLaren says that critical ethnography asks questions such as “[u]nder what conditions and to what ends do we. as educational researchers, enter into relations of cooperation. mutuality, and reciprocity with those who we research?” (p. 78) and “what social effects do you want your evaluations and understandings to have?” (p. 83). In»the same vein, Michelle Fine suggests that critical researchers must move beyond notions of the etic/emic dichotomy of researcher positionality in order to “probe how we are in relation with the contexts we study and with our informants, understanding that we are all multiple in those relations” (p. 72). Researchers in composition and literacy stud¬ies who endorse critical research methods, then, aim to enact some sort of positive transformative change in keeping with the needs and interests of the participants with whom they work.
Self-mentioning: Authority, authorship or self-promotion in 17thC prefaces to manuals on obstetrics?
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Con questo mio lavoro di tesi ho voluto esplorare il fenomeno del maltrattamento e dell’abuso sui minori delineandone, sulla base della letteratura scientifica nazionale ed internazionale, gli aspetti clinici, epidemiologici ed i fattori di rischio. Un breve excursus giuridico illustrerà, poi, gli articoli di legge relativi alla tutela dei minori; in particolare, ci si soffermerà ad illustrare quegli articoli che normano i doveri dei sanitari nei confronti dell’autorità giudiziaria nel caso si sospetti un abuso su minori. La conoscenza della semeiotica dell’abuso, il suo riconoscimento all’interno di una diagnostica differenziale clinico-forense, la corretta repertazione e la consapevolezza che, un approccio autenticamente tutelante verso la vittima, deve sempre realizzarsi all’interno di una cornice giuridica fanno si che, il ruolo della medicina legale, competente in tutti questi ambiti, diventi senza ombra di dubbio “primum inter pares” all’interno dei team multidisciplinari ed interistituzionali che si occupano di minori vitti. Il gruppo scientifico in cui sono stata inserita e con cui si è proceduto alla redazione del manuale è il Gruppo di lavoro per l’abuso e il maltrattamento dell’infanzia coordinato dalla dott.ssa Maria Rosa Giolito ed ha coinvolto professionisti italiani afferenti a tre differenti aree sanitarie: quella ginecologica, quella medico-legale e quella pediatrica. Il testo elaborato è stato immaginato come un aiuto ai professionisti medici che si trovano a valutare un soggetto prepubere con sospetto di abuso sessuale. Non costituisce una linea-guida per la diagnosi di abuso sessuale, ma definisce alcuni requisiti essenziali e diffonde alcune conoscenze per evitare errori che possano ripercuotersi negativamente sulla valutazione clinica e sull’eventuale conseguente iter giudiziario.