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Search Results: 1 - 10 of 9150 matches for " Mercedes Gutiérrez "
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Reproducción y desarrollo larval del sapo enano Melanophryniscus stelzneri stelzneri (Weyemberg, 1875) (Anura: Bufonidae)
Bustos Singer, Rodrigo,Gutiérrez, Mercedes
Cuadernos de Herpetología , 1997,
Abstract: Se estudiaron varios aspectos de la reproducción y desarrollo larval de Melanophryniscus stelzneri stelzneri: condiciones ambientales en las que ocurre la reproducción, conductas pre y postreproductivas de los adultos, puesta, desarrollo embrionario, comportamiento larval, y metamorfosis. Se realizó también una descripción anatómica de la larva. La mayor parte de las conductas observadas son corrientes en anuros argentinos. La larva es típicamente peque a y de tipo léntico-bentónica. Su fórmula dentaria mas común es 2 / 3. El tiempo de metamorfosis está afectada por la disponibilidad de agua, un paulatino descenso en el nivel de agua la acelera. Many aspects about the reproduction of Melanophryniscus stelzneri stelzneri were estudied: environmental conditions in which reproduction occurs, pre and postreproductive adult behaviour, oviposition, larval developement, tadpole habits and metamorphosis. An anatomic description of the larva was also realized. Most of the observed behaviours are usual in argentinian anurans. The tadpole is tiny and typically lentic- bentonic. The most conmon queratodontic formula is 2 / 3. The time of metamorphosis is affected by water availability. A decreasing level of water accelerates the development.
The Iron Age settlement of Cerro de la Mesa (Alcolea de Tajo, Toledo). First Results
Ortega Blanco, José,del Valle Gutiérrez, Mercedes
Trabajos de Prehistoria , 2004,
Abstract: A general description of the rescue work in the site of Cerro de la Mesa is presented. The work documented a stratigraphy that covered at least all of the Iron Age. The site has a large wall typologically related with Andalusian and Levantine sites. There is a ritual area with orientalising items. Some domestic structures and a metallurgical workshop related with iron metallurgy were also documented from a later phase. Se presentan los resultados de los trabajos realizados en este yacimiento, cuya estratigrafía abarca, al menos toda la Edad del Hierro. Se ha excavado en extensión una potente muralla que recuerda modelos andaluces y levantinos. Se ha documentado una ocupación con materiales orientalizantes en un ambiente que puede considerarse sacro. De la fase posterior se han excavado varias estructuras domésticas, así como un conjunto que se relaciona con el trabajo del metal, tal vez una forja.
Gestante con pénfigo foliáceo endémico y producto libre de enfermedad: Caso clínico Endemic pemphigus foliaceus in a pregnant woman: Report of one case
Carlos Galarza,Ericson L Gutiérrez,Willy Ramos,Mercedes Tello
Revista médica de Chile , 2009,
Abstract: Endemic pemphigus foliaceus (EPF) in an autoinmune skin disease present in areas of the Amazonia. We report a 36 year-old woman who presented EPF at 17 weeks of pregnancy. At 29 weeks, she started antimicrobial treatment and steroids. At the moment of delivery, the disease was in remission and cutaneous lesions were not seen in the neonate. Indirect immunofluorescence titers of total IgG in the mother and in the neonate were negative. Sixteen months later, IgG titers in the offspring were 1/20 and remained negative in the mother, who was on low doses of oral corticosteroids (Rev Méd Chile 2009; 137: 1205-8).
Comunicación química en la boa arco iris Epicrates cenchria alvarezi (Serpentes, Boidae)
Briguera, Verónica,Chiaraviglio, Margarita,Gutiérrez, Mercedes
Cuadernos de Herpetología , 1994,
Abstract: In snakes there are two possible pheromonal sources: skin and cloacal glands. In this work, we tested both secretions in adults of Epicrates cenchria alvarezi as messages transmitters, trying to explain the role that plays this information in the social context of this species. Both secretions have shown to have pheromonal function. Conespecific odors elicited more tongue extrusions than other stimuli did. These results suggest that the snake is capable of discriminating conspecifics based on chemical cues alone.
Estado nutricional de preescolares de Ciudad de La Habana entre 1972 y 1993
Esquivel,Mercedes; Romero,Juana M.; Berdasco,Antonio; Gutiérrez,José A.; Jiménez,Juana M.; Posada,Estrella; Ruben,Mercedes;
Revista Panamericana de Salud Pública , 1997, DOI: 10.1590/S1020-49891997000500003
Abstract: two anthropometric surveys of children and adolescents have been carried out in cuba with national samples. a third study done in the province of ciudad de la habana provided information on the physical characteristics of the population in that area and a baseline for the periodic evaluation of its nutritional status. this article compares the weight and height results obtained in these surveys for children 0 to 5 years old who lived in this province with the international reference standards proposed by who. the results show that, despite the economic difficulties the country has faced, the prevalence of malnutrition is low. in 1993, the prevalence of low height-for-age was 3.1%; that of low weight-for-height, 0.4%; and that of low weight-for-age, 1.5%. overweight was the most common type of malnutrition, with a prevalence of 5.2%. between 1972 and 1993, the prevalence of chronic malnutrition fell 32.6%, acute malnutrition was reduced by 69.2%; malnutrition of all types decreased by 44.4%; and overweight fell 48.5%.
Individual increase in inbreeding allows estimating effective sizes from pedigrees
Juan Gutiérrez, Isabel Cervantes, Antonio Molina, Mercedes Valera, Félix Goyache
Genetics Selection Evolution , 2008, DOI: 10.1186/1297-9686-40-4-359
Abstract: (To access the full article, please see PDF)
Determinación de la actividad celulolítica del suelo proveniente de cultivos de Stevia rebaudiana Bertoni
Gutiérrez R.,Viviana; Pinzón E.,ángela; Casas,Jaime; Martínez,María Mercedes;
Agronomía Colombiana , 2008,
Abstract: in this study celullolytic activity was determined in soil using a fluorogenic technique, which utilizes 4-methylumbelliferil b-glucose (muf) as substrate, and was compared with the quantitative technique of somogyi nelson (sn). sediment control was handled as a positive method of muf, as this technique was standardized previously in this matrix. soil sampling was done in puerto lópez, meta, in stevia rebaudiana bertoni crops using a simple random sampling. sediments were collected in la conejera wetland located in suba, bogotá. three treatments were done to both matrixes: t1: matrix (control); t2: matrix + crude enzymatic extract (2.34 uc); t3: matrix + streptomyces sp (59x103 spores/ml). to obtain the crude enzymatic extract used in t2 an isolation of the celulloytic microogranisms was done with greater activity in carboximethylcellulose (cmc 1%) from soil samples for its subsequent fermentation and extraction of enzyme extract. incubation of the matrix in three treatments was done at room temperature during 60 days where tests were performed every 15 days in order to analyze enzymatic activity by the established methods (muf and sn). humidity was maintained at 4.6%. no evidence of differential effects in the enzymatic activity with any of the treatments was found. also, there was no statistical correlation between the methods (<16%). thus, we propose the fluorogenic technique as a viable and reliable methodology to determinate cellulolytic activity because of its high specificity, faster assembly as well as its easy manipulation, precision and repeatability. nevertheless the sn technique has not been ruled out for future studies.
ACTITUD DEL PROFESIONAL DE ENFERMERíA ANTE LA MUERTE DE PACIENTES
Maza Cabrera,Maritza; Zavala Gutiérrez,Mercedes; Merino Escobar,José M;
Ciencia y enfermería , 2009, DOI: 10.4067/S0717-95532009000100006
Abstract: the purpose of this correlated descriptive study was to assess attitudes of nursing professionals towards the death of patients, related to conditional factors and preparation instances in this área. the sample was made up of 157 professional nurses from guillermo grant benavente hospital in concepción, and las higueras hospital intalcahuano. this study was supported by attitude and death concepts. to collect information, an instrument with 3 scales of measure -ment was used. the first scale used to measure biosocial demographic points, was taken from tejada, and adapted by the researchers (1). the second scale, used to measure attitude toward death, was created by urrutia, mentioned in tejada (1). the third scale, the questionnaire of attitude toward death (cam), was templer's adaptation (2). principal results show that age, undergraduate preparation in the subject, age at first contact with death and years of professional experience, have influence in nursing professionals' attitude toward the death of patients. this permits creating an optimal statistic model of predictable factors in the nursing professionals attitude toward the death of patients. it concludes that it is very important that there is an adequate physical space in hospitals for the attention of dying patients, as well as instances of psycho-emotional support for professionals that frequently face the death of patients. it is also very relevant to get better undergraduate preparation during professional development, to reaffirm a positive attitude, that will be demonstrated in better attention, and decrease of fears and anxiety.
Violencia sexual en jóvenes de 10 a 19 a?os. Cali, 2001-2006
Restrepo-Gutiérrez,Ana C.; Salcedo-Cifuentes,Mercedes; Bermúdez-Escobar,Amparo;
Revista de Salud Pública , 2009, DOI: 10.1590/S0124-00642009000600005
Abstract: objective characterising sexual violence reported by youngsters aged 10 to 19 in cali between 2001 and 2006. components and methods young people aged 10 to 19 who had been referred to a forensic clinic by a competent authority between 2001 and 2006 were defined as being presumed victims of sexual crimes. variables of time, place and personsubjected to sexual crime committed by a family member (intrafamily), an acquaintance or unknown public individual (extrafamily) were compared. there were 661 cases of presumed victims of sexual abuse from both sexes in the age-range being studied. the information was taken from the forensic clinic's patient records. chi square and relative risk were used in the statistical analysis of the data so collected concerning frequency for presumed sexual victims aged 10 to 19 and analysing the relationships between variables. results 83 % of the cases in the study were female, 78 % were students and more than 50 % were 15 year-old minors. the aggressors were known in 78 % of the cases. a significant association was found between involvement with the aggressor and the place where the incident occurred with a victim's age. conclusions the characteristics of sexual violence occurring in adolescents were constant and comparable with historical studies where family dynamics and organisation made such scene opportune for this type of violent act to be perpetrated.
Factores sociodemográficos y de salud asociados a la institucionalización de personas dependientes
Ayuso Gutiérrez,Mercedes; Pozo Rubio,Raúl del; Escribano Sotos,Francisco;
Revista Espa?ola de Salud Pública , 2010, DOI: 10.1590/S1135-57272010000600009
Abstract: background: the analysis of the effect that different variables have in the probability that dependent people are institutionalized is a topic scantily studied in spain. the aim of the work is to analyze as certain socio-demographic and health factors can influence probability of dependent person living in a residence. methods: a cross-section study has been conducted from a representative sample of the dependent population in cuenca (spain) in february, 2009. we have obtained information for people with level ii and iii of dependence. a binary logit regression model has been estimated to identify those factors related to the institutionalization of dependent people. results: people with ages between 65-74 years old are six times more likely to be institutionalized than younger people (<65 years old); this probability increases sixteen times for those individuals with ages equal or higher than 95 years. the probability of institutionalization of people who live in an urban area is three times the probability of people who live in a rural area. people who need pharmacological, psychotherapy or rehabilitation treatments have between two and four times more probability of being institutionalized that those who do not need those. conclusions: age, marital status, place of residence, cardiovascular and musculoskeletal diseases and four times of medical treatment are the principal variables associated with the institutionalization of dependent people.
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