oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 19 )

2018 ( 18 )

2017 ( 11 )

2016 ( 22 )

Custom range...

Search Results: 1 - 10 of 12337 matches for " Carmen;Estrada "
All listed articles are free for downloading (OA Articles)
Page 1 /12337
Display every page Item
Selectivity in feeding preferences and ranging patterns in spider monkeys Ateles geoffroyi yucatanensis of northeastern Yucatan peninsula, Mexico
Carmen SCHERBAUM, Alejandro ESTRADA
Current Zoology , 2013,
Abstract: The spider monkey, a fruit specialist and important seed dispersal agent in the Neotropics, is an endangered primate due to habitat loss, hunting and the pet trade. Spider monkeys have been the subject of a few studies in Central and South Ame-rica, but little is known about the diet and ranging for this primate in southern Mexico. Here we report the results of a six-month long study (October 2010 to March 2011) of the feeding preferences and ranging patterns of the Yucatan spider monkey Ateles geoffroyi yucatanensis living in the “Ya′ax′che” reserve by the Caribbean coast in northeast Yucatan peninsula. Focal animal and scan sampling as well as GPS tracking were used to document spider monkey feeding behavior, location of food trees and ranging in the reserve. The spider monkeys used 36 species of plants (94% trees; n = 432) and six non tree morphospecies as a source of food. Six tree species accounted for ≥80% of total feeding time and for 74% of all trees used. Fruits accounted for 59% of total feeding time, followed by leaves (35%), palm piths (5%) and other plant parts (1%). Total range used by the monkeys was estimated at 43% of semievergreen rainforest habitat available (ca 40ha). Range use was not random with segments showing light, moderate and heavy use; the use of different areas of their range varied monthly and was closely linked to the spatial dispersion of the trees used for food [Current Zoology 59 (1): 125–134, 2013].
GESTIóN DEL CONOCIMIENTO EN RELACIóN CON LAS TIC PARA LA FORMACIóN PERMANENTE DE LOS DOCENTES DEL INSTITUTO UNIVERSITARIO DE TECNOLOGíA "TOMAS LANDER"
M.Sc. Carmen Blanco Estrada
CONHISREMI , 2008,
Abstract:
Acupuntura y sus técnicas en el asma bronquial
Veitía Estrada,María del Carmen; Pentón Valdivia,Miguel ángel; Palmero Estrada,Malvila;
Revista Cubana de Enfermer?-a , 2002,
Abstract: a descriptive study was made and the use of acupuncture and its techniques to treat patients with bronchial asthma in the municipality of fomento, las villas, from january to december, 1998 was analyzed. the sample was composed of 200 patients divided into different age groups. the relationship between bronchial asthma and some biosocial factors as age, sex and occupation was among the studied aspects. the evolution of patients with acupuncture, auriculotherapy, moxibustion, ventouse, etc. was analyzed. in our study, it was demonstrated the usefulness of theses simple and economic procedures for the control and good evolution of the patient with bronchial asthma, which contributes to reaffirm the real objectives and premises of directive 26, and encourages the use of acupuncture and its techniques in our municipality to promote the development of our medicine. a good evolution was observed with all the techniques.
Acupuntura y sus técnicas en el asma bronquial
María del Carmen Veitía Estrada,Miguel ángel Pentón Valdivia,Malvila Palmero Estrada
Revista Cubana de Enfermer?-a , 2002,
Abstract: Se realizó un estudio descriptivo y analizó el tratamiento con acupuntura y sus técnicas a pacientes con asma bronquial en el municipio de Fomento, Las Villas, en el período de enero a diciembre de 1998, con un total de 200 pacientes pertenecientes a diferentes grupos etáreos, los que constituyeron el 100 % de nuestra muestra. Se estudiaron algunos aspectos como la relación existente entre el asma bronquial y algunos factores biopsicosociales como: edad, sexo, ocupación. Se analizó la evolución con la acupuntura, auriculoterapia, moxibustión, ventosa, etc. En nuestro estudio se demostró la gran utilidad de estos sencillos y económicos procederes para el control y buena evolución del paciente con asma bronquial, lo cual contribuye a reafirmar los verdaderos objetivos y premisas de la Directiva 26, y de esta forma estimular el uso de la acupuntura y sus técnicas en nuestro municipio, para contribuir a un mejor desarrollo de nuestra medicina. Se concluyó que se obtuvo una buena evolución con todas las técnicas empleadas. A descriptive study was made and the use of acupuncture and its techniques to treat patients with bronchial asthma in the municipality of Fomento, Las Villas, from January to December, 1998 was analyzed. The sample was composed of 200 patients divided into different age groups. The relationship between bronchial asthma and some biosocial factors as age, sex and occupation was among the studied aspects. The evolution of patients with acupuncture, auriculotherapy, moxibustion, ventouse, etc. was analyzed. In our study, it was demonstrated the usefulness of theses simple and economic procedures for the control and good evolution of the patient with bronchial asthma, which contributes to reaffirm the real objectives and premises of Directive 26, and encourages the use of acupuncture and its techniques in our municipality to promote the development of our medicine. A good evolution was observed with all the techniques.
La fertilización nitrogenada en el rendimiento del girasol en México
Luis Enrique Escalante-Estrada,Yolanda Isabel Escalante-Estrada,Carmen Linzaga-Elizalde
Agronomía Costarricense , 2007,
Abstract: Con el fin de evaluar el efecto de la fertilización nitrogenada aplicada al suelo sobre el rendimiento del girasol, se realizó la presente investigación en el campo del CEP-CSAEGRO. Se utilizó la línea 58 de girasol. Los niveles de N evaluados fueron: 0, 40, 80 y 120 kg ha-1, aplicados a los 9 días después de la siembra, con sulfato de amonio (20,5% N). El análisis de varianza indicó que el N aplicado aumentó el rendimiento en semilla, el diámetro del capítulo, el peso del capítulo sin semilla, el peso de 100 semillas, la altura de la planta, la eficiencia del N, y la rentabilidad económica, ya que se presentaron diferencias estadísticas significativas entre sus medias. Los valores más altos de las variables se obtuvieron cuando se aplicó 120 kg de N ha-1.
Densidad de siembra del girasol forrajero
Luis Enrique Escalante-Estrada,Yolanda Isabel Escalante-Estrada,Carmen Linzaga-Elizalde
Agronomía Costarricense , 2008,
Abstract: Con el objetivo de promover el girasol como un cultivo forrajero, se evaluó el efecto de 4 densidades de siembra (75.000, 100.000, 125.000 y 150.000 plantas.ha-1) en el rendimiento de forraje para consumo de ganado. Las evaluaciones fueron realizadas al inicio de la floración. Se utilizó un dise o de bloques completos al azar. El análisis de varianza mostró que la densidad de siembra modifica significativamente (p≤0,05) el rendimiento del girasol. Con 75.000 plantas. ha-1 se obtuvo los valores más altos, por planta, en diámetro del tallo (1,2 cm), peso seco de la hoja (30,3 g), peso seco del tallo (50,7 g), y peso seco total de la planta (98,4 g), también la relación hoja: tallo siempre fue >0,7. Con la densidad de 150.000 plantas.ha-1 se logró los valores más altos, por hectárea, en altura de la planta (102,3 cm), peso seco de la hoja (3,3 t.ha-1), peso seco del tallo (4,8 t.ha-1), y peso seco total de la planta (9,5 t.ha-1). Así, la densidad de siembra más alta afectó negativamente la biomasa por planta, pero positivamente la biomasa por hectárea
Comportamiento de los estudiantes en función a sus hábitos de estudio
Escalante Estrada, Luis Enrique,Escalante Estrada, Yolanda Isabel,Lizanga Elizalde, Carmen,Merlos Escobedo, María Eugenia
Revista Electrónica Actualidades Investigativas en Educación , 2008,
Abstract: Resumen: Cuando se estudia por horas y no se percibe el rendimiento de ese esfuerzo, se olvida lo que se aprende, se prepara bien para realizar un examen y a la hora de presentarlo, se comprueba que no es así. En muchas ocasiones ocurre esta situación porque no se sabe cómo estudiar, no se tienen buenos hábitos de estudio o no se aplican las técnicas adecuadas. En esta investigación, se evaluaron los hábitos de estudio de los estudiantes de la carrera de Ingeniero Agrónomo Zootecnista del Centro de Estudios Profesionales del Colegio Superior Agropecuario del Estado de Guerrero, México. Los valores de los hábitos de estudio se obtuvieron del promedio de la suma de sus cuatro variables que son: estrategias de higiene, condición de materiales, estrategias de estudio y capacidad de estudio. Los resultados de los hábitos de estudio y de sus variables, fueron evaluados con valores de cero a diez, teniendo que valores menores de seis se consideraron reprobatorios. Los hábitos de estudio de los estudiantes, tuvieron valores mínimos aprobatorios que fueron de 6.15 a 6.95. La variable estrategias de higiene tuvo el menor valor (6.40), mientras que la variable estrategias de estudio fue el mayor valor (6.79). Las variables condición de materiales y capacidad de estudio tuvieron valores de 6.72 y 6.67 respectivamente. El aprendizaje del estudiante depende de su capacidad intelectual, de su estado emocional y de sus hábitos de estudio.Abstract: When one studies per hours and the yield of that effort is not perceived, it forgets what it is learned, thinks that it is arrived well prepared at an examination and at the time of presenting/displaying it, it is verified that is not thus. In many occasions it happens this situation because it is not known like studying, does not have good habits of study or it is not known to make use of the suitable techniques. In this investigation the habits of study of the students of the Race of Engineer Zootecnista Agronomo of Centro de Estudios Profesionales of Colegio Superior Agropecuario del Estado de Guerrero, Mexico were evaluated. The values of the study habits were obtained from the average of the sum of their four variables that are: strategies of hygiene, condition of materials, strategies of study and capacity of study. The results of the habits of study and its variables were evaluated with values from zero to ten, having smaller values of six considered reprobated. The habits of study of the students had approving minimum values that went from 6.15 to 6.95. Variable strategies of hygiene had the smaller value (6.40), wher
Ethnobotany in the Cumbres de Monterrey National Park, Nuevo León, México
Eduardo Estrada, José A Villarreal, César Cantú, Ismael Cabral, Laura Scott, Carmen Yen
Journal of Ethnobiology and Ethnomedicine , 2007, DOI: 10.1186/1746-4269-3-8
Abstract: An ethnobotanical study in the Cumbres de Monterrey National Park (CMNP), Nuevo Leon, Mexico was conducted. In spite of the large area (1,773.7 km2), heterogeneous physiography, contrasting plant communities and high species diversity of the CMNP, very little was previously known about its useful plants. Based on 95 interviews with inhabitants of the region who were 35 years old or older, we recorded ethnobotanical data of 240 species (comprising 170 genera and 69 botanical families), and 146 different uses. Most of the cited uses (98) were found to be medicinal ones.Ninety five inhabitants 35 years old and oldest were interviewed to know what are the main plant uses in the Cumbres de Monterrey National Park.Two hundred and forty species, 170 genera, and 69 families of useful plants and 146 different uses were recorded. We found most of the uses to be medicinal (98), while the rest (48) represent various purposes. Herbaceous plants are the most used, followed by shrubs and trees.Northeastern Mexico presents a high diversity of plant associations, including a variety of scrubland types (Tamaulipan, xerophyllous, rosetophyllous and piedmont communities) [1][2][3], chaparral [4], mixed pine-oak forest [3][5], conifer forest [3][6][7][8], halophytic grasslands [9], and alpine meadows [7][10]. Many of these plant communities are currently under threat because of frequent forest fires, deforestation, conversion of natural vegetation into cattle pastures, croplands and fruit orchards, and extensive clearing for human settlements. One of the most significant physiographic units in northeastern Mexico is the Sierra Madre Oriental because of is role in moisture catchment and watershed management, and because it sustains extensive conifer and oak forests, which are the main forest resources of the region. The high plant diversity and scenic beauty of these mountains have merited the establishment of a number of natural protected areas, such as El Cielo Biosphere Reserve, Cumbr
Estrategia de Intervención para mejorar la calidad del servicio estomatológico de urgencias
Estrada Verdeja,Viviana; Hidalgo,Carmen Rosa; Expósito Martín,Idelbys; Martín Zaldivar,Ledia;
Revista Archivo M??dico de Camag??ey , 2010,
Abstract: background: the health national program contemplates uninterrupted benefit of the emergency odontological services. the distinctive characteristics of its attention require its quality control. objective: to improve the quality of the emergency odontological service at ignacio agramonte polyclinic. methods: an educational intervention in the emergency odontological service at ignacio agramonte polyclinic was performed from january to july 2008. the universe was constituted by 184 patients older than 12 years and 62 lenders of health, it was conformed a probabilistic sample of 92 patients according to the prevalence, the statistical program epidat was used. data according to quality indicators of structure, process and result, were obtained by means of three instruments: guide of structured information, interviews to lenders of health and patients. the quality of the service was evaluated before and three months after the intervention. data were processed by means of statistical system spss version 10.1 and descriptive and inferential statistics. results: the indicator of process improved from bad to good in the second evaluation. before the intervention the bad quality of the service prevailed, and then the biggest frequency was presented in the regular category. conclusions: before the intervention bad quality was diagnosed in the three indicators of study, but then it persisted just in structure. the quality of the service varied from bad to regular after the intervention, to persist difficulties in the structure.
Evaluación de la uniformidad del riego por goteo en condiciones de casas de cultivo en explotación
Cun González,Reinaldo; Puig Estrada,Omar; Morales Gómez,Carlos; Duarte Díaz,Carmen;
Revista Ciencias T??cnicas Agropecuarias , 2011,
Abstract: there are 673 greenhouses in cuba, their dimensions ranges between (12 m x45 m y 20 m x 40 m) and they belong to 24 modules spread along 13 provinces with a production of (200 t·ha-1 y 300 t·ha-1 ) vegetables mearly. in this units drip irrigation is used. to obtain good quality harvestings is important that the systems perform with a high uniformity. the research was developed with the main objective of determining the irrigation uniformity through the calculation of the uniformity coefficient (cu) of the system working with one lateral on the furrow and with two lateral of dripper on the bed under production conditions. the study was carried out in the module of greenhouses ¨las guásimas¨, located in arroyo naranjo municipality in havana province to 23° 00'; 33,12 north latitude and 82° 17'; 42,57 longitude west, to 92 m on the sea level. the results demonstrated emitters work with good uniformity in the rates (> 80%), but outside of the value recommended by the manufacturer (2 l·h-1) for both situations. the general cu of the systems was excellent and good (> 80 and> 90%). we conclude that it was higher the coefficient of uniformity of the rate and the system in general when a lateral by furrow instead of two. the irrigation systems in these productive units operate with higher pressures to those stated by the project, that′s why the rate of the originators is superior to those outlined by the maker.
Page 1 /12337
Display every page Item


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