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Search Results: 1 - 10 of 300074 matches for " José B. Membre?o "
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Microflora en semillas de frijol
José B. Membreo,Mildred Zapata,James Beaver,Rusty Smith
Agronomía Mesoamericana , 2001,
Abstract: Microflora en semillas de frijol (Phaseolus vulgaris L.). Se estudió la microflora bacteriana presente en semillas de frijol y su relación con Xanthomonas campestris pv. phaseoli (Xcp), en 118 genotipos procedentes de VIDAC-98, INTA- Nicaragua, TARS-USDA e Isabela-P.R. Se utilizaron cinco métodos de aislamiento: semilla desinfectada con hipoclorito de sodio, semilla en caldo nutritivo refrigerada por una hora, dispersión de 0,1 ml de suspensión de semillas en medio sólido, siembra líquida de 1 ml de suspensión y semilla en caldo nutritivo, agitado y refrigerado por 24 horas. Se aislaron 104 colonias amarillas de 41 genotipos. Treinta y seis colonias fueron KOH positivo (Gram negativo), 68 negativo (Gram positivo) y 34 hidrolizaron almidón. Las colonias de pigmentación amarilla resultaron no patogénicas bajo condiciones de invernadero. Estas se identificaron con el sistema BIOLOG como: Pantoea agglomerans (25), Xanthomonas campestris (2), Enterobacter agglomerans (2), Sphingomonas paucimobilis (2), Pseudomonas fluorescens y Flavimonas oryzihabitans. En adición, los genotipos portaron colonias con pigmentación distinta a la amarilla. En las pruebas de antagonismo se identificaron colonias con actividad de deoxyribonucleasa y de antibiosis a Xcp. De éstas, 15 colonias inhibieron a Xcp significativamente. Se identificaron los hongos Rhizoctonia solani, Penicillium spp., Fusarium spp., Aspergillus flavus, Rhizopus nigricans y Macrophomina phaseolina en un 52,9 % del total de genotipos evaluados
Knowledge Attitude and Practices Related on Prevention of Mosquito Borne Diseases and Sanitation Conditions in a Salvadoran Urban Community  [PDF]
Roberto Mejía, Alexandre Ribó, Edgar Quinteros, Alejandro López, Paola Villegas, Xavier F. Vela, Ada Ruth Membreo
Occupational Diseases and Environmental Medicine (ODEM) , 2016, DOI: 10.4236/odem.2016.44010
Abstract: Introduction: In El Salvador Mosquito Borne Diseases (MBDs) is a serious public health problem due to produce morbidity and mortality. They produce a high economic loss, which contributes to the collapse of the public health system. Over the years, the Salvadoran public health system has invested large amounts of resources to minimize the problem through campaigns against MBDs. Despite this, the population is still affected by diseases such as dengue, and more recently chikungunya and zika outbreaks. The aim of this study is to evaluate sanitation conditions variables and identify knowledge, attitudes, practices related to the prevention of MBDs. Methods: A cross-sectional survey about sanitation conditions and knowledge, attitudes and practices on prevention of MBDs of inhabitant’s ≥ 15 years from an urban community of a municipality with the highest number of cases reported in 2015. Results: Majority of respondents (98.2%) had direct supply of drinking water; however 96.4% of respondents were agreed that they had an inconsistent water supply. Regarding MBDs prevention respondents showed high acceptable knowledge (76.8%), high favorable attitude (92.1%) and an acceptable implementation of practices toward prevention reproduction of mosquitoes (58.5%) and a poor implementation of practices to prevent mosquito bites (38.3%). Conclusions: The findings revealed high acceptable knowledge about MBDs and a high favorable attitude regarding to prevent them, but also revealed a scarce implementation of prevention practices. The generalized storage of water on non-covered barrels because the inconsistent water supplies, can be source of proliferation of mosquitoes and therefore increases the risk of transmission of MBDs. High population density of the community can magnify this risk. It is necessary to enhance education to promote better implementation of practices using the most common media together with the local health workers.
Tumor masculinizante de ovario (a propósito de un caso)
Toribio- Membreo,Iván; Gutiérrez- Miranda,María Raquel; Mora- Calderón,Angie;
Acta Médica Costarricense , 2004,
Abstract: we report here the case of a 63 years old female with 6 years history of alopecia, hirsutism, deepening voice and clitorimegaly. she had high levels of testosterone (263 ng/dl) and a transvaginal ultrasound showed a solid lesion in the left ovary. the management consisted of abdominal histerectomy and bilateral oophorectomy. the biopsy reported a benign steroidogenic leydig cell tumor. the patient did well with partial improvement of her manifestations, when was seen 4 months later
Perforación uterina y de colon por T de cobre
Toribio- Membreo,Iván; Gutiérrez- Miranda,María Raquel;
Acta Médica Costarricense , 2005,
Abstract: we report the case of 36 years old female, with uterine and sigmoid colon perforation caused by a tcu placed 14 years previously. she was asymptomatic. the management required an abdominal histerectomy and repair of the sigmoid colon, she also needed a temporary transverse colostomy with final satisfactory outcome. uterine perforation by intrauterine devices, is an infrequent complication, in 15% of the cases it is associated with perforation of other internal organs, primarily the intestine.
Perforación uterina y de colon por T de cobre
Iván Toribio- Membreo,María Raquel Gutiérrez- Miranda
Acta Médica Costarricense , 2005,
Abstract: Se reporta el caso de una paciente de 36 a os, con perforación uterina y del colon sigmoides con una Tcu colocada 14 a os atrás, y que evolucionó en forma asintomática. El manejo requirió de histerectomía abdominal, con reparación de colon sigmoides y colostomía transversa temporal con evolución final satisfactoria. La perforación uterina por dispositivos intrauterinos (DIU), constituye una complicación poco frecuente, y puede acompa arse de perforación de otras vísceras en el 15%, de los casos principalmente del intestino. We report the case of 36 years old female, with uterine and sigmoid colon perforation caused by a Tcu placed 14 years previously. She was asymptomatic. The management required an abdominal histerectomy and repair of the sigmoid colon, she also needed a temporary transverse colostomy with final satisfactory outcome. Uterine perforation by intrauterine devices, is an infrequent complication, in 15% of the cases it is associated with perforation of other internal organs, primarily the intestine.
Tumor masculinizante de ovario (a propósito de un caso)
Iván Toribio- Membreo,María Raquel Gutiérrez- Miranda,Angie Mora- Calderón
Acta Médica Costarricense , 2004,
Abstract: Se reporta el caso de una paciente de 63 a os, con 6 a os de evolución de alopecia, hirsutismo, voz ronca y clitorimegalia. Se le encontraron niveles altos de testosterona (263 ng/dl), el ultrasonido transvaginal demostró una lesión sólida en el ovario izquierdo. El manejo consistió en histerectomía abdominal y salpingooforectomía bilateral. La biopsia indicó un tumor benigno esteroidogénico tipo células de Leydig. La paciente evolucionó satisfactoriamente, con mejoría parcial de sus manifestaciones en el control postoperatorio de 4 meses We report here the case of a 63 years old female with 6 years history of alopecia, hirsutism, deepening voice and clitorimegaly. She had high levels of testosterone (263 ng/dl) and a transvaginal ultrasound showed a solid lesion in the left ovary. The management consisted of abdominal histerectomy and bilateral oophorectomy. The biopsy reported a benign steroidogenic Leydig cell tumor. The patient did well with partial improvement of her manifestations, when was seen 4 months later
Algumas sugest es para o controle dos mosquitos do gênero aedes no Brasil
Oliveira Sebasti?o José de,Arag?o Mário B.
Cadernos de Saúde Pública , 1995,
Abstract:
Influence of Organoclay Structure on Nanostructured Materials Based on Eva  [PDF]
Gisele C. V. Iulianelli, Pedro José Oliveira Sebasti?o, Maria Inês B. Tavares, Fernanda Abbate dos Santos
Materials Sciences and Applications (MSA) , 2015, DOI: 10.4236/msa.2015.610088
Abstract: This article reports the preparation of a series of EVA nanocomposites employing solution casting methods using different types of organo-modified montmorillonite clay. The effect of the organoclay type on the structural organization and thermal behavior of EVA nanostructured materials were systematically investigated. Regarding thermal behavior, the thermogravimetric analysis showed that the nanocomposites presented a slight decrease in thermal degradation temperature compared to EVA, while differential scanning calorimetry, in general, did not show a significant change in the thermal transition temperatures such as glass transition, melting temperature and crystallization temperature of the nanocomposites, regardless of the type and proportion of organoclay in the systems. With respect to structural aspect, the X-ray diffractograms showed that all systems presented a heterogeneous distribution of the nanoparticles, containing part intercalated. Nuclear magnetic resonance relaxometry data provided complementary information for the X-ray results, showing that the EVA systems containing 5 wt% of both studied organoclays presented a mixture of intercalated and exfoliated structures, evidencing that there was a surface interaction between polymer chains and clay lamellae.
Rearing the Predator Brontocoris tabidus (Heteroptera: Pentatomidae) with Tenebrio molitor (Coleoptera: Tenebrionidae) Pupa on Eucalyptus grandis in the Field  [PDF]
José C. Zanuncio, Ana M. R. M. Ferreira, Wagner S. Tavares, Jorge B. Torres, José E. Serr?o, Teresinha V. Zanuncio
American Journal of Plant Sciences (AJPS) , 2011, DOI: 10.4236/ajps.2011.23052
Abstract: The use of natural enemies represents an important strategy in programs of Integrated Pest Management (IPM). Asopinae predators are reared with alternative prey, but supplementary plant may enhance the fecundity and longevity of their females. The objective of this research was to evaluate the development and reproduction of the predator Brontocoris tabidus Signoret, 1852 (Heteroptera: Pentatomidae) fed with Tenebrio molitor L., 1785 (Coleoptera: Tenebrionidae) pupae in a Eucalyptus grandis Hill ex Maiden (Myrtaceae) plant in the field. The duration and survival of the nymphal stage of B. tabidus were 32.07 ± 8.95 days and 77.00 ± 0.42%, respectively with 15.55 ± 8.19 egg masses, 603.00 ± 379.20 eggs and 387.45 ± 291.40 nymphs per female of this predator while longevity of its males and females was 119.80 ± 32.80 and 160.20 ± 42.13 days, respectively. Better results with E. grandis plant in the field and the fact that B. tabidus will be adapted at release time show that this predator should be reared in these conditions.
Taxonomic revision of thorny catfish genus Hassar (Siluriformes: Doradidae)
Birindelli, José L. O.;Fayal, Danielle F.;Wosiacki, Wolmar B.;
Neotropical Ichthyology , 2011, DOI: 10.1590/S1679-62252011000300006
Abstract: the genus hassar (doradidae) is diagnosed by a single exclusive feature: basioccipital with ventral ring-like arch surrounding aorta; and by the combination of several non-exclusive characters, including dark blotch in distal half of anterior branched rays of dorsal fin, and anteriormost postinfranuchal scutes reduced in size. three nominal species are recognized and redescribed in hassar: h. orestis from the orinoco, essequibo and amazonas basins, excluding tocantins and middle to upper xingu drainages; h. wilderi from tocantins; and h. affinis from northeastern brazil, including turia?u, pindaré-mearim, itapecuru and parnaíba drainages. the nominal hemidoras notospilus and hassar ucayalensis are recognized as junior synonyms of hassar orestis; hassar woodi is considered a junior synonym of h. affinis; hassar iheringi is recognized as a junior synonym of h. wilderi, and its type locality as originally reported is considered incorrect. a fourth new species, hassar gabiru, is described from middle to upper xingu river basin. hassar is considered to be the sister taxon of anduzedoras + leptodoras. a detailed anatomical description and discussion of the phylogenetic relationships of hassar among fimbriate-barbel doradids are provided.
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