LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Back to previous search Search history
Advanced search

Your last searches

  1. AU="Bertha Rita Castillo Edua"
  2. AU="Hannah Danbury"
  3. AU="Elramly, Mohamed"
  4. AU="Louella, Michael"
  5. AU=Bolton Judy L
  6. AU="Riederer, Cordula"
  7. AU="Bao, Qi"
  8. AU="Tsang, Stephen H"
  9. AU="Isaranuwatchai, Wanrudee" AU="Isaranuwatchai, Wanrudee"
  10. AU="Goldring, Mary B"
  11. AU="Durrington, Charlotte"
  12. AU="Metka, M."
  13. AU="González Villarroel, Paula"
  14. AU="Gakuya, F."
  15. AU="Belloni-Fortina, Anna"
  16. AU="Teufel, Frank"

Search results

Result 1 - 5 of total 5

Search options

  1. Article ; Online: The experimental learning method for environmental education (Tamet) in students from the National University of Central Perú

    Rosa Haydeé Zárate Quiñones / Bertha Rita Castillo Edua

    Revista Cubana de Ciencias Forestales, Vol 4, Iss 1, Pp 18-

    2016  Volume 25

    Abstract: This research was conducted in order to apply the experimental method of learning for Sustainable Development in students of the Faculty of Forestry and Environmental Sciences of the National University of Central Peru. For its development we worked with ...

    Abstract This research was conducted in order to apply the experimental method of learning for Sustainable Development in students of the Faculty of Forestry and Environmental Sciences of the National University of Central Peru. For its development we worked with a sample of 1062 students and a quasi-experimental design was used. Were employed different methods of mathematical theoretical, empirical and statistical level that allowed data collection, analysis and interpretation of results. A test of knowledge in Environmental Education for Sustainable Development to students, a questionnaire of perception and opinion, as well as a questionnaire of teacher training was applied. The experimental method used allowed the development of knowledge, habits and environmental values for sustainable development in students, contributing to the protection and conservation of the environment.
    Keywords Educación ambiental ; Desarrollo sostenible ; Recursos naturales renovables ; Método de aprendizaje ; Environmental sciences ; GE1-350 ; Ecology ; QH540-549.5
    Subject code 370
    Language English
    Publishing date 2016-06-01T00:00:00Z
    Publisher Universidad de Pinar del Río "Hermanos Saíz Montes de Oca"
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  2. Article ; Online: Mathematic treatment for thinning selection in Pinus caribaea var. caribaea plantations in Pinar del Río, Cuba

    Bertha Rita Castillo Edua / Héctor Barrero Medel / Victor Ernesto Pérez León / Rosa Haydeé Zárate Quiñones

    Revista Cubana de Ciencias Forestales, Vol 3, Iss 2, Pp 163-

    2015  Volume 171

    Abstract: The present research was developed with the aim to optimize the forestry activity, maximizing the yield and quality of the Pinus caribaea var caribaea Barret and Golfari plantations at the Forestry unit of San Juan and Martinez, Pinar del Río. To ... ...

    Abstract The present research was developed with the aim to optimize the forestry activity, maximizing the yield and quality of the Pinus caribaea var caribaea Barret and Golfari plantations at the Forestry unit of San Juan and Martinez, Pinar del Río. To determine the stand that should receive the silvicultural treatment, was formulated a linear programming model with two constraints: the budget and fuel availability. Was used the Forest Ordination Project to achieve the problem solution. It contains the area information as well as the information about the economic resources. Additionally, the PLANINF software, serving as an automatic interface among the database, the software used to solve the problem, the production plans and the model parameters. The model allows to obtaining efficient solutions from the economic point of view and to identifying orderly which stand must receive the thinning, the type and the order in which it should be made. Also, the amount of resources needed to obtain the desired performance at the shift end is shown.
    Keywords Pinus ; raleo ; modelo de programación lineal ; optimización ; Environmental sciences ; GE1-350 ; Ecology ; QH540-549.5
    Language English
    Publishing date 2015-11-01T00:00:00Z
    Publisher Universidad de Pinar del Río "Hermanos Saíz Montes de Oca"
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  3. Article ; Online: Estimate of the dry branches biomass in plantations of Pinus maestrensis Bisse in the Granma province, Cuba

    Hector Barrero-Medel / Wilmer Toirac Arguelle / José Antonio Bravo Iglesias / Alberto Vidal Corona / Arlety Ajete Hernández / Bertha Rita Castillo Edua

    Revista Cubana de Ciencias Forestales, Vol 3, Iss 1, Pp 13-

    2015  Volume 21

    Abstract: This study aimed to estimate the biomass of dry branches of Pinus plantations maestrensis Bisse inGranma province. To which 138 trees were felled types selected from the execution of a simple random sample of 40 stands; which were pruned and defoliated, ... ...

    Abstract This study aimed to estimate the biomass of dry branches of Pinus plantations maestrensis Bisse inGranma province. To which 138 trees were felled types selected from the execution of a simple random sample of 40 stands; which were pruned and defoliated, carrying out weighing separately biomass branches of each of the same, determined from the moisture content of representative samples of the branches taken at random and dried in stove at 105 ° C until bring to constant weight, and then convert the values to dry weight. To estimate biomass of dry branches four regression models, where the model presented better goodness of fit was logarithmic, with coefficient of determination and adjusted coefficient of determination of 94.4 and 94.3%, highly significant parameters were evaluated (P 0.001) and lower index value Furnival.
    Keywords Pinus maestrensis Bisse ; biomasa de ramas seca ; modelos de regresión ; Environmental sciences ; GE1-350 ; Ecology ; QH540-549.5
    Subject code 519
    Language English
    Publishing date 2015-06-01T00:00:00Z
    Publisher Universidad de Pinar del Río "Hermanos Saíz Montes de Oca"
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  4. Article ; Online: Factores socio-epidemiológicos asociados a los accidentes en el anciano en San Juan y Martínez Socio-epidemiological factors associated with different kinds of accidents in the elderly. San Juan y Martinez municipality

    Olga Lidia Benítez Pozo / Bertha Rita Castillo Edua / Marielvis Calero Benítez / Ileana Rosa Hernández Pérez / José Jesús Arencibia Sánchez

    Revista de Ciencias Médicas de Pinar del Río, Vol 17, Iss 2, Pp 26-

    2013  Volume 36

    Abstract: Introducción: el estudio de la problemática del anciano constituye un elemento de primordial importancia y aparece como un factor decisivo en las investigaciones médicas. Esto se debe al incremento de la población mayor de 65 años, calculada en más de ... ...

    Abstract Introducción: el estudio de la problemática del anciano constituye un elemento de primordial importancia y aparece como un factor decisivo en las investigaciones médicas. Esto se debe al incremento de la población mayor de 65 años, calculada en más de 290 millones de personas con un aumento creciente en las últimas décadas. Objetivo: identificar los factores socio-epidemiológicos asociados a los accidentes en el anciano en el municipio San Juan y Martínez durante el año 2011. Material y método: se realizó una investigación descriptiva y transversal, el universo estuvo constituido por 615 ancianos que sufrieron algún tipo de accidentes registrados en hojas de cargo y la muestra de 300 ancianos, seleccionados por el método aleatorio estratificado. Se utilizaron como métodos la encuesta y la observación científica lo que permitió obtener una información variada y directa. Resultados: se obtuvo un predominio del sexo masculino, con edades comprendidas entre 71 y 75 años, las enfermedades asociadas que predominaron en el hombre fueron las del sistema osteomioarticular y en las mujeres la hipertensión arterial. La alteración intrínseca más frecuente fue la ingestión de medicamentos con un 90.2 % y el factor extrínseco los desniveles del piso con el 70.3 %. Conclusiones: entre los factores socio-epidemiológicos asociados a los accidentes en el an ciano predominan las enfermedades del sistema osteomioarticular, así como la ingestión de medicamentos y las barreras arquitectónicas (desniveles del piso). Introduction: the study of the problem of the elderly constitutes an essential element and it appears as a crucial factor in medical investigations, because of the increase of population older than 65 years old, calculated in more than 290 millions of people which is on the increase during the last decades. Objective: to identify the socio-epidemiological factors associated with different kinds of accidents in the elderly in San Juan y Martinez municipality during 2011. Material and method: a descriptive and ...
    Keywords Epidemiologia ; Accidentes ; Ancianos ; Epidemiology ; Accidents ; Aged ; Medicine ; R ; Medicine (General) ; R5-920
    Language Spanish
    Publishing date 2013-04-01T00:00:00Z
    Publisher ECIMED
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  5. Article ; Online: Incidencia de la blenorragia en los jóvenes de 15 a 25 años de edad en San Juan y Martínez Incidence of Blennorrhagia on young people from 15 to 25 years old in San Juan y Martinez municipality

    Maricela Goitizolo Pérez / Bertha Rita Castillo Edua / Geisell Martínez Torres / Yabel Herrera Ledesma / Ivo Lázaro Martín Duque

    Revista de Ciencias Médicas de Pinar del Río, Vol 16, Iss 5, Pp 25-

    2012  Volume 34

    Abstract: Introducción: la blenorragia comúnmente es vista como un cambio en el ecosistema vaginal donde se observan diplococos arriñonados intra y extracelulares, una descarga de secreción purulenta de color verdoso; esta secreción se mantiene en el nicho vaginal, ...

    Abstract Introducción: la blenorragia comúnmente es vista como un cambio en el ecosistema vaginal donde se observan diplococos arriñonados intra y extracelulares, una descarga de secreción purulenta de color verdoso; esta secreción se mantiene en el nicho vaginal, o sea, asintomático mientras que en el sexo masculino hay ardor dolor y secreción al orinar 72 horas después de haberse relacionado con el agente causal. Objetivo: determinar los factores que favorecen la alta incidencia de blenorragia. Material y método: se realizó una investigación descriptiva longitudinal y prospectiva en el área urbana del municipio San Juan y Martínez en el período comprendido de enero del 2009 a diciembre de 2010, a los jóvenes de 15 a 24 años de edad. Resultados: se demostró que el sexo femenino asiste más a la consulta con un (54.6%) por presentar flujo vaginal mientras que el masculino con (45.4%) presenta síntomas de flujo uretal. El mayor porciento de afección se presenta en los que no se encuentran en centros de estudios ni de trabajo, lo que demuestra que a menor nivel ocupacional mayor es el nivel de afección de esta enfermedad en las jóvenes. Conclusiones: entre los factores que favorecen la alta incidencia de blenorragia, existió un predominio de mujeres con un bajo nivel de escolaridad, desocupadas y con inestabilidad de pareja sexual, un temprano comienzo de relaciones sexuales, y que no utilizan métodos de protección para evitar las infecciones de transmisión sexual. Introduction: Blennorrhagia is commonly seen as a change in vaginal microbiome where intra and extra-cellular kidney-shape diplococci are observed, a purulent greenish discharge is maintained in the vaginal niche, which courses asymptomatically in women, while in men symptoms and signs of burning sensation during urination, pain and secretion after 72 hours of contact with the causal agent are observed. Objective: to determine the factors favoring the high incidence of blennorrhagia. Material and method: a descriptive, longitudinal and prospective research was ...
    Keywords Gonorrea ; Enfermedades de transmisióln sexual ; Medicine ; R ; Medicine (General) ; R5-920
    Language Spanish
    Publishing date 2012-10-01T00:00:00Z
    Publisher ECIMED
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top