Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

2019 ( 16 )

2018 ( 10 )

2017 ( 12 )

2016 ( 27 )

Custom range...

Search Results: 1 - 10 of 7347 matches for " Martha; Salazar Schettino "
All listed articles are free for downloading (OA Articles)
Page 1 /7347
Display every page Item
Comportamiento biológico de Triatoma pallidipennis (Hemiptera: Reduviidae) en el estado de Morelos, México
Bautista,Norma; Rojas,Gloria; De Haro,Irene; Bucio,Martha; Salazar Schettino,Paz María;
Boletín chileno de parasitología , 2001, DOI: 10.4067/S0365-94022001000200004
Abstract: t. pallidipennis was found naturally infected in localities of domestic, peridomestic and wild areas in the state of morelos, méxico. in agreement with the triatomines high potentiality like vectors of t. cruzi, protozoan that causes chagas' disease and the knowledge of these bugs in méxico, the aim of the present research was to collect triatomines for assessment of t. cruzi infection, to characterize and compare life cycles, identification of feeding preferences and observe indexes of experimental infectivity. seven isolates of t. cruzi were obtained, from differents localities which curves of parasites showed different behaviors. histopathological study, carried out by counting of amastigotes nests, which affected the gastrocnemius muscle and heard was observed. the life cycles of t. pallidipennis was completed in 131 days. the feeding preferences were rats, cats and pigs.
First Case of Natural Infection in Pigs: Review of Trypanosoma cruzi Reservoirs in Mexico
Salazar-Schettino Paz María,Bucio Martha Irene,Cabrera Margarita,Bautista Jacobo
Memórias do Instituto Oswaldo Cruz , 1997,
Abstract: An epidemiological research project was performed in the State of Morelos including collection of samples for blood smears and culture, serological tests, and xenodiagnoses from a total of 76 domestic and peridomestic mammals. Two strains of Trypanosoma cruzi were isolated by haemocultures; one from a pig (Sus scrofa), the first case of natural infection reported in Mexico, and the other from a dog (Canis familiaris). This study summarizes current information in Mexico concerning confirmed reservoirs of T. cruzi
Insecticide and community interventions to control Triatoma dimidiata in localities of the State of Veracruz, Mexico
Wastavino, Gloria Rojas;Cabrera-Bravo, Margarita;García De La Torre, Guadalupe;Vences-Blanco, Mauro;Ruiz Hernández, Adela;Bucio Torres, Martha;Guevara Gómez, Yolanda;Mesa, Alejandro;Salazar Schettino, Paz María;
Memórias do Instituto Oswaldo Cruz , 2004, DOI: 10.1590/S0074-02762004000400015
Abstract: three different interventions to control triatoma dimidiata in the state of veracruz were implemented: x-1 = whole dwelling spraying, x-2 = middle wall spraying, x-3 = household cleaning. cyfluthrin was sprayed 3 times with 8 month intervals. after each spraying, insects were collected and sent to the laboratory to be recorded and to determine genus and species of the adult triatomine bugs, and nymphs were counted. trypanosoma cruzi presence was determined. with x-1, the infestation, colonization, and natural infection indexes were reduced to 0% in the 3 localities, with respect to t0. with x-2, the infestation index was reduced to 10% at t3 in 3 localities; the colonization index was reduced to 0% in only 1 locality at t3, and the natural infection index was reduced to 0% at t3. with x-3 the 3 indexes were not effectively reduced but they decreased with respect to the baseline study. insecticide application to the whole dwelling is a more efficient intervention than its application to only the lower half of the walls and to the cleaning of houses.
Evaluación de la función y sincronía de la contracción ventricular en pacientes con enfermedad de Chagas en estadio de latencia
Nivardo Sobrino, Ayax;Jiménez-ángeles, Luis;Bialostozky, David;Vázquez, Clara;Martínez, Irma;Salazar-Schettino, Paz Maria;Bucio-Torres, Martha;Ruiz-Hernández, Adela;Cabrera-Bravo, Margarita;
Archivos de cardiología de México , 2009,
Abstract: objective: to compare the left ventricular function and the ventricular synchrony in patients with chagas disease in latency stage respect to a control group. methods: we analyze a prospective, comparative, transversal and non randomized study of the left ventricular function (lvf) and the ventricular contraction synchronicity (vcs) in 36 subjects with positive serology for chagas disease (18 males and 18 females), with mean of 15 ± 5 years old. the findings were compared with respect to 23 control volunteers (11 males and 12 females) with mean of 28 ± 5 years old. lvf and vcs were evaluated using equilibrium radionuclide angiography images (erna). the comparison of both chagas and control populations was carried out by t student test for independent samples, considering a statistically significant value of p < 0.05. results: the parameters of the ventricular function and the ventricular synchronicity in subjects with positive serology for chagas disease were not statistically different with respect to the parameters of the control group. however, although they have a homogeneous contraction, the mean time of contraction for the right and the left ventricle is statistically smaller with respect to the control group. conclusions: in clinically incipient stages of chagas disease we do not found abnormalities in the ventricular function and the ventricular synchronicity. it's necessary to consider the follow up of the studied populations using indices for the identification of abnormalities of the autonomic nervous system.
Expansión urbana, protección ambiental y actores sociales en la Ciudad de México
Martha Schteingart,Clara Salazar
Estudios Demográficos y Urbanos , 2003,
Fernando CARRILLO FLóREZ. Constitucionalizar la Democracia Social. El Proceso Constituyente de 1991 y América Latina . Bogotá: Editorial Temis, 2011, 384 pp. ISBN: 978-958-35-0846-2.
América Latina Hoy , 2012,
Respetamos a la persona que tiene una orientación sexual diferente?
Salazar de Jiménez Martha
Avances en Enfermería , 1992,
Abstract: En este artículo se describen las observaciones realizadas en el trabajo con distintos grupos de la comunidad, sobre el tema de la homosexualidad. Conviene aclarar que con el término homosexualidad se hace referencia tanto al hombre como a la mujer, esto por cuanto dicho término procede del griego ''homo'' que significa "mismo" "igual" no de la palabra latina ''homo'' que significa hombre. En los talleres que se realizan sobre sexualidad humana, el tema de homosexualidad es casi siempre solicitado por los participantes, pero el grupo en que más se registra esta necesidad es en el de los maestros. Al iniciar la discusión la sola mención de la palabra produce reacción y no propiamente de aceptación, en el lenguaje no verbal de los participantes se perciben gestos de desagrado, o el chiste un poco mordaz que luego se traduce en palabras y expresiones más concretas que muestran lo que esa comunicación ha tratado de transmitir.
Spreading Newtonian Philosophy with Instruments: The Case of Atwood’s Machine  [PDF]
Salvatore Esposito, Edvige Schettino
Advances in Historical Studies (AHS) , 2014, DOI: 10.4236/ahs.2014.31007
Abstract: We study how the paradigm of Newton’s science, based on the organization of scientific knowledge as a series of mathematical laws, was definitively accepted in science courses—in the last decades of the XVIII century, in England as well as in the Continent—by means of the “universal” dynamical machine invented by George Atwood in late 1770s just for this purpose. The spreading of such machine, occurring well before the appearance of Atwood’s treatise where he described the novel machine and the experiments to be performed with it, is a quite interesting historical case, which we consider in some detail. In particular, we focus on the “improvement” introduced by the Italian Giuseppe Saverio Poli and the subsequent “simplifications” of the machine, underlying the ongoing change of perspective after the definitive success of Newtonianism. The case studied here allows recognizing the relevant role played by a properly devised instrument in the acceptance of a new paradigm by nonerudite scholars, in addition to the traditional ways involving erudite scientists, and thus the complementary role of machine philosophy with respect to mathematical, philosophical or even physical reasoning.
Tres especies de triatominos y su importancia como vectores de Trypanosoma Cruzi en México
Salazar Schettino,Paz M.; de Haro Arteaga,Irene; Cabrera Bravo,Margarita;
Medicina (Buenos Aires) , 2005,
Abstract: observations made in the field and in the laboratory on three vectors of trypanosoma cruzi: triatoma barberi, t. pallidipennis and t. dimidiata are here presented. results are compared in relation with their ecotopes, vectorial capacity, biological characteristic, entomological indexes and capture places. in relation with their ecotopos t. barberi has preference for the interior of the human home, in walls, directly in contact with beds; t. pallidipennis, when it is inside the houses, prefers floors and among clothes, although their main ecotope is wild; t. dimidiata has localization in floors, specially under the beds, in the angle between wall and floor; t. barberi and t. dimidiata are attracted by the light. the cycles of life were of 523, 171 and 510 days, respectively for triatoma barberi, t. pallidipennis and t. dimidiata. the vectorial capacity was determined according to the time taken in defecating during or after its sucking blood: t. barberi defecates during its feeding, while t. pallidipennis and t. dimidiata make it from 10 to 20 and of 20 to 30 minutes after starting the process, respectively. the indexes of natural infection were of 56.6 for t.barberi, 29 for t.pallidipennis and 15.6 for t. dimidiata, the metacyclogenics indexes that indicate percentages of metacyclics trypomastigotes in later intestine of vectors was in t. barberi 76.6, t. pallidipennis 15 and t. dimidiata 26, with what it can be concluded that the first species is the best transmitter of t. cruzi in mexico.
Cuticular hydrocarbons of Chagas disease vectors in Mexico
Juárez, M Patricia;Carlson, David A;Salazar Schettino, Paz María;Mijailovsky, Sergio;Rojas, Gloria;
Memórias do Instituto Oswaldo Cruz , 2002, DOI: 10.1590/S0074-02762002000600012
Abstract: capillary gas-liquid chromatography was used to analyse the cuticular hydrocarbons of three triatomine species, triatoma dimidiata, t. barberi and dipetalogaster maxima, domestic vectors of chagas disease in mexico. mixtures of saturated hydrocarbons of straight and methyl-branched chains were characteristic of the three species, but quantitatively different. major methylbranched components mostly corresponded to different saturated isomers of monomethyl, dimethyl and trimethyl branched hydrocarbons ranging from 29 to 39 carbon backbones. sex-dependant, quantitative differences in certain hydrocarbons were apparent in t. dimidiata.
Page 1 /7347
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.