oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

4 ( 1 )

2019 ( 87 )

2018 ( 411 )

2017 ( 412 )

Custom range...

Search Results: 1 - 10 of 254526 matches for " Ana Isabel; Marín "
All listed articles are free for downloading (OA Articles)
Page 1 /254526
Display every page Item
Bioactive Low Molecular Weight Compounds in Two Traditional Spanish Products  [PDF]
María Luisa Timón, Emilio José Galea, Ana Isabel Andrés, María Jesús Petrón
Food and Nutrition Sciences (FNS) , 2013, DOI: 10.4236/fns.2013.49A2003
Abstract:

The aim of this work focuses on the study of low molecular weight (LMW) compounds with antioxidant and antihy-pertensive effect in Iberian ham and La Serena cheese, two traditional products in Spain, in comparison to cured ham and matured Ewe’s milk cheese. Proteolysis parameters were studied, LMW compounds were isolated and their antioxidant and antihypertensive activity was analyzed. Results showed that a more intense proteolysis, expressed as peptidic nitrogen (PN), in Iberian ham (p < 0.001), can cause higher antioxidant activity in this product for both DPPH radical scavenging (p < 0.001) and metal chelating effect (p < 0.001). However, a more intense proteolysis in La Serena cheese, expressed as non protein nitrogen (NPN) (p < 0.001) and PN (p < 0.001), did not promote higher antioxidant activity in this cheese. On the other hand, no differences were found for antihypertensive activity, expressed as angiotensin I-converting enzyme (ACE) inhibitory activity, in both type of hams or cheese.

Eficiencia de uso de n-p-k en una asociación de maíz (zea mays l.) Y quinchoncho (cajanus cajan l. Millspaugh) con o sin fertilización
Quiroz,Ana Isabel; Marín,Douglas;
Bioagro , 2007,
Abstract: abstract an experiment was conducted in quíbor valley, lara state, venezuela, to evaluate the use efficiency of the elements n, p and k in plants of maize and pigeonpea sewed as monocrops or intercrops. plants were grown without fertilizer application, or under 120 kg·ha-1 of nitrogen and 30 kg·ha-1 of phosphorus. it was measured the absorption of nutrients during plant vegetative growth, flowering and fruit maturation, along with the efficiency of absorption and conversion in absolute terms during the maturation stage, using a randomized block design with five replications. the results showed a higher absorption of n and k in intercropping corn in comparison with sole crop. in pigeonpea, there was a higher accumulation of n and p in the sole crop plot, and the intercropping was more affected independently of the fertilizer application. efficiency of absolute conversion had opposed tendencies when it was compared to the absorption, therefore corn in monocrop was superior to the intercrop. in pigeonpea opposite result was observed. the land equivalent ratio (ler) for n-pk, based on their absorption and conversion efficiencies, indicated advantages of intercropping over the sole crop regardless of the fertilizer application
Rendimiento en granos y eficiencia de una asociación maíz (zea mays) y quinchoncho (cajanus cajan) con o sin fertilización
Quiroz,Ana Isabel; Marín,Douglas;
Bioagro , 2003,
Abstract: grain yield and efficiency of a maize-pigeon pea intercropping system were compared in an additive experiment with 62.500 plants/ha sole cropped maize (ceniap pb8), 50.000 plants/ha sole cropped pigeonpea (icpl 87119) and 112.500 plants/ha in intercropping plots. two fertilization levels were applied. maize was planted 20 days after pigeonpea. grain yields of maize were 6938 and 7665 kg/ha in not fertilized and fertilized monoculture plots, and 7030 and 7507 kg/ha in not fertilized and fertilized intercropped plots, respectively. no statistical differences were found in pigeonpea, with grain yields of 3437 and 3464 kg/ha in not fertilized and fertilized sole cropped plots, and 3064 and 3277 kg/ha in not fertilized and fertilized intercropped plots. efficiency indexes land equivalent ratio (ler), area-time equivalency ratio (ater) and area-harvest equivalency ratio (aher) showed advantages of intercropping in relation to monocultures.
Eficiencia de uso de n-p-k en una asociación de maíz (zea mays l.) Y quinchoncho (cajanus cajan l. Millspaugh) con o sin fertilización Use efficiency of N-P-K intercropping system of corn Zea mays L. and pigeonpea Cajanus cajan L. Millspaugh with or without fertilization
Ana Isabel Quiroz,Douglas Marín
Bioagro , 2007,
Abstract: RESUMEN La práctica del monocultivo representa una de las principales causas de los desequilibrios en el ambiente y en el suelo en la depresión de Quíbor, en el estado Lara, Venezuela. Con el objeto de ofrecer alternativas de producción se estudió la eficiencia de uso de N, P y K en plantas de maíz y quinchoncho, conducidas como monocultivo o en asociación, sin fertilización o con aplicación de 120 kg·ha-1 N y 30 kg·ha-1 P, en un ensayo tipo aditivo en bloques al azar con cinco repeticiones. Se determinó la acumulación de estos elementos en las etapas de desarrollo vegetativo, floración y maduración de frutos así como la eficiencia de absorción y conversión en términos absolutos para la etapa de maduración. Se encontró una mayor absorción de N y K en el maíz asociado en comparación con el monocultivo. El quinchoncho mostró una mayor acumulación de N y P en el monocultivo, y el asociado resultó desfavorecido independientemente de la aplicación de fertilizante. La eficiencia de conversión absoluta presentó tendencias opuestas a la absorción, siendo superior para el maíz monocultivo respecto al asociado, mientras que en el quinchoncho ocurrió lo contrario, el asociado tuvo una mejor eficiencia de conversión absoluta para la elaboración de granos. Los valores de la relación de equivalencia de la tierra (RET) por elemento, calculados con base en las eficiencias de absorción y conversión de N, P y K, indicaron ventajas de las asociaciones sobre los monocultivos, independientemente de la aplicación de fertilizante ABSTRACT An experiment was conducted in Quíbor Valley, Lara State, Venezuela, to evaluate the use efficiency of the elements N, P and K in plants of maize and pigeonpea sewed as monocrops or intercrops. Plants were grown without fertilizer application, or under 120 kg·ha-1 of nitrogen and 30 kg·ha-1 of phosphorus. It was measured the absorption of nutrients during plant vegetative growth, flowering and fruit maturation, along with the efficiency of absorption and conversion in absolute terms during the maturation stage, using a randomized block design with five replications. The results showed a higher absorption of N and K in intercropping corn in comparison with sole crop. In pigeonpea, there was a higher accumulation of N and P in the sole crop plot, and the intercropping was more affected independently of the fertilizer application. Efficiency of absolute conversion had opposed tendencies when it was compared to the absorption, therefore corn in monocrop was superior to the intercrop. In pigeonpea opposite result was observed. The land equivalent
Rendimiento en granos y eficiencia de una asociación maíz (zea mays) y quinchoncho (cajanus cajan) con o sin fertilización Grain yield and efficiency of a maize-pigeon pea intercropping system with and without fertilization
Ana Isabel Quiroz,Douglas Marín
Bioagro , 2003,
Abstract: Con la finalidad de determinar el rendimiento en granos y la eficiencia de una asociación maíz (CENIAP PB8) y quinchoncho (var. ICPL 87119) se estableció un experimento aditivo con 62.500 plantas/ha del cereal y 50.000 p/ha de la leguminosa, con siembra escalonada y dos niveles de fertilización. El maíz no fue afectado por la competencia con la leguminosa a pesar del retardo de 20 días en su siembra y produjo 6938 y 7665 kg/ha en parcelas de monocultivo no fertilizadas y fertilizadas, respectivamente, mientras que en las asociadas los valores correspondientes fueron 7030 y 7507 kg/ha. Tampoco hubo diferencias significativas en el rendimiento de la leguminosa asociada, aunque el ciclo en este último caso se prolongó por 18 días. El quinchoncho rindió 3437 y 3464 kg/ha en monocultivo no fertilizado y fertilizado, respectivamente, en tanto que en las parcelas asociadas los valores fueron 3064 y 3277 kg/ha. No se detectó efecto significativo por la aplicación del fertilizante. La eficiencia de uso de los recursos por la asociación se estimó mediante los índices de relación de equivalencia de la tierra (RET), relación de equivalencia de área y tiempo (REAT) y la relación de equivalencia de área y cosecha (REAC), que evidenciaron ventajas significativas de las parcelas asociadas respecto a los monocultivos de referencia. Grain yield and efficiency of a maize-pigeon pea intercropping system were compared in an additive experiment with 62.500 plants/ha sole cropped maize (CENIAP PB8), 50.000 plants/ha sole cropped pigeonpea (ICPL 87119) and 112.500 plants/ha in intercropping plots. Two fertilization levels were applied. Maize was planted 20 days after pigeonpea. Grain yields of maize were 6938 and 7665 kg/ha in not fertilized and fertilized monoculture plots, and 7030 and 7507 kg/ha in not fertilized and fertilized intercropped plots, respectively. No statistical differences were found in pigeonpea, with grain yields of 3437 and 3464 kg/ha in not fertilized and fertilized sole cropped plots, and 3064 and 3277 kg/ha in not fertilized and fertilized intercropped plots. Efficiency indexes land equivalent ratio (LER), area-time equivalency ratio (ATER) and area-harvest equivalency ratio (AHER) showed advantages of intercropping in relation to monocultures.
Review of informal care. Discovering the primary caregiver
María Pilar Catalán Edo,Ana Isabel Garrote Mata
NURE Investigación , 2012,
Abstract: Introduction. The concept of informal care is complex and multidimensional. Caring involves tasks, relationships, feelings and costs. Women socialization as family welfare providers become them into “health agents” but not “health subjects”. Method. A cross-sectional study regarding the informal care situation during the last decade was performed. The profile of the caregiver and how this role had influenced in his the quality of life was analyzed. Several searches were performed at the following electronic databases: Cochrane Plus, Pubmed, OSM, ODS, RISG, IMSERSO, using the following terms: Gender identity, caregivers, inequality, and home care services. 40 articles were included. Results. The primary caregiver profile is a middle-aged woman, housewife, with low education level and ties of kinship with the person who is cared. It is the daughter who mostly takes this role, followed by the spouse. They perceive that their life is conditioned by this task. Care activity has important health implications for people who perform it, pointing out the negative impact on psychological health, which causes stress and anxiety and overload. Social support is directly related to psychological welfare, and it affects positively to their quality of life. Caring causes positive effects on the caregiver but they are rarely studied. Discussion. The landscape of care in the last ten years has changed a little. Formal services’ is minority. Studies focused exclusively on female caregivers generate biased information.
éxito empresarial y género en turismo rural
Diéguez Castrillón,María Isabel; Canto,Ana Gueimonde; Cantorna,Ana I. Sinde;
Revista Encontros Científicos - Tourism & Management Studies , 2010,
Abstract: the purpose of this paper is to analyse the relationship between business success and gender in the field of rural tourism in galicia (spain), employing financial (or economic) and non-financial elements as factors for success. the small size of the field for research allows control of structural factors (industry, location and company size), employed by the existing literature to explain the relationship between business success and gender. the paper provides new knowledge about this relationship in a rural environment, with specific industry characteristics related to diversification, small size and owner motivation. the findings suggest the existence of a significant relationship between gender and success, measuring success with both subjective measures (related to profit orientation) and objective measures, related to employment. the perception of success appears to be higher for women, with significant gender differences.
La incidencia de las características empresariales y del sector oferta en la difusión del diesel y del acero en el sector pesquero gallego
Ana I. Sinde Cantorna,María Isabel Diéguez Catrillón,Ana Gueimonde Canto
Revista Galega de Economía , 2007,
Abstract: El objetivo de este trabajo es el de formular un modelo que recoja los factores que determinan la adopción de nuevas tecnologías en el sector pesquero. Para estimar dicho modelo usamos datos de corte transversal obtenidos a partir de las listas oficiales de buques para el período 1931-1961. Estimamos un modelo de regresión logística para establecer qué características empresariales efectos de rango y del sector oferta implican una mayor probabilidad de adopción. Los principales resultados obtenidos el tama o y la experiencia previa de la empresa proveedora inciden de forma significativa en la probabilidad de adopción, lo que pone de manifesto la importancia de incluir en los modelos no sólo al sector demandante sino también al oferente.
CONDICIONES MOTIVACIONALES Y DESARROLLO DE CARRERA
MARíN FERNáNDEZ,ANA CRISTINA; VELASCO DE LLOREDA,MARíA ISABEL;
Estudios Gerenciales , 2005,
Abstract: this paper presents the findings of a research study conducted within the frame of the professional development program at icesi university . this program allowed systemizing and reviewing information about motivational profiles gathered from 1997 to 2004 on a biannual basis. this study profited a great deal from the vast experience of the program with regard to the placement of students in the job market, personalized follow-up interns, and constant relation with companies. the work motivation survey (wms) enabled us to determine the motivational profile of interns at icesi university and the specific characteristics of each profile for each academic program. this raises the students awareness of opportunities associated with the knowledge of trends and characteristics of motivational profiles in different disciplines with respect to human talent management in organizations. the conclusions provide an example that shows the university?s experience of this institutional educational project as a generator of motivational factors. it also proposes a series of actions that should be taken in time to react to the expectations and needs for professional developments.
HISTORIAS DE APRENDIZAJE: UNA HERRAMIENTA PARA EL DESARROLLO ORGANIZACIONAL
MARíN FERNáNDEZ,ANA CRISTINA; VELASCO DE LLOREDA,MARíA ISABEL;
Estudios Gerenciales , 2001,
Abstract: el presente artículo parte de una reflexión acerca de la importancia del aprendizaje al interior de las organizaciones en función de su desarrollo organizacional. presenta una rese?a de la metodología de historias de aprendizaje desarrollada por los profesores art kleiner y george roth, en el center for organizational learning y el reflection learning associates de mit, como una herramienta de tipo administrativo, utilizada para promover el aprendizaje y el desarrollo organizacional.
Page 1 /254526
Display every page Item


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