oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 110 )

2018 ( 748 )

2017 ( 727 )

2016 ( 923 )

Custom range...

Search Results: 1 - 10 of 444607 matches for " Afranio C. de;Beltr?o "
All listed articles are free for downloading (OA Articles)
Page 1 /444607
Display every page Item
Cultivares, épocas de plantio e componentes da produ??o no consórcio de algod?o e amendoim
Araújo, Afranio C. de;Beltro, Napole?o E. de M.;Bruno, Genildo B.;Moraes, Martival dos S.;
Revista Brasileira de Engenharia Agrícola e Ambiental , 2006, DOI: 10.1590/S1415-43662006000200016
Abstract: the intercrops are practiced by small farmers aiming to favor not only the diet and the income of their families, but also to decrease the risks of production losses. it was aimed with this work to study the influence of cotton and peanut cultivars and relative planting times as intercroping, being verified the components of the production, vegetable productivity, as well as the quality of the products. the experiment was conducted in miss?o velha, ceará state, brazil, at cotton experimental field of embrapa in the agricultural year of 2002. inall 20 treatments were tested with 4 repetitions, in a randomized block with 2 x 2 x 4 + 2 + 2 factorial, the factors being two cultivars of cotton (brs 186 - precocious 3 and brs 201), two cultivars of peanut (l7 and br-1), four planting times (0; 7; 14 and 21 days) plus the isolated controls of the two cultivrs of cotton and peanut crops. the technological characteristics of the cotton fiber practically did not suffer influence of the intercroping, however, the yield of both cotton and peanut crops decrease as a function of cultivation system due to established competition between the two crops.
Indicadores agroecon?micos na avalia??o do consórcio algod?o herbáceo + amendoim
Araújo, Afranio César de;Beltro, Napole?o Esberard de Macêdo;Morais, Martival dos Santos;Araújo, Jussiara de Lima Oliveira;Cunha, Jorge Luiz Xavier Lins;Paix?o, Stênio Lopes;
Ciência e Agrotecnologia , 2008, DOI: 10.1590/S1413-70542008000500017
Abstract: one aimed with this work to study the influence of cotton and peanut cultivars and relative planting times as intercropping, being verified the relationships of competitiveness among the two cultures. the experiment was carried out in miss?o velha, ceará state, brazil, at cotton experimental field of embrapa in the agricultural year of 2002. twenty treatments were tested with 4 repetitions, in a randomized block with 2 x 2 x 4 + 2 + 2 factorial, the factors being two cultivars of cotton (brs 186 - precocious 3 and brs 201), two cultivars of peanut (l7 and br-1), four planting times (0; 7; 14 and 21 days) plus the isolated controls of the two cultivars of cotton and peanut crops. considering the results obtained for rude income, surrender liquid and rates of return, one considered that there was not economical advantage for the producer when the cotton was planted in intercrop with the peanut, since the referring values to the intercrop were smaller than the isolated cultivations.
AS CRIAN AS E A VIOLêNCIA NA ESCOLA: ESPELHOS DA SOCIEDADE. CHILDREN AND VIOLENCE IN SCHOOLS: MIRROR OF SOCIETY
Córdula, Eduardo Beltro de Lucena
Revista Eletr?nica de Educa??o , 2011,
Abstract: é notória nas escolas públicas na atualidade a quest o da violência e dos transtornos sociais que s o externalizados pelas crian as, reflexo de um convívio gerador de problemas, que perpassam pela sociedade, comunidade e pela família, onde se dá o início de sua forma o cidad , cabendo um esfor o em conjunto para solucionar tal problemática, em uma rede social protetora da infancia.It is evident in public schools nowadays the issue of violence and social unrest externalized by the children, a reflection of a living that is a generator of problems. These problems affect the society, the community and the family, in which the children start to be educated as citizens. Thus, a conjoint effort to solve this problem is needed, a social network for children protection.
Fitotoxicidade e seletividade do herbicida trifloxysulfuron sodium na mamona cultivar BRS Nordestina
Ferreira, Uilma C. de Q.;Queiroz, Wilton N. de;Beltro, Napole?o E. de M.;
Revista Brasileira de Engenharia Agrícola e Ambiental , 2009, DOI: 10.1590/S1415-43662009000700014
Abstract: the castor been (ricinus communis l.) is a rustic plant, heliophile, resistant to drought, belonging to the family of euforbiace. it is characterized by being sensitive to several herbicides and the competition imposed by harmful plants. this work had as objective to study the influence of different doses of the herbicide trifloxysulfuron-sodium in different states of development of the castor been, cultivar brs nordestina. the experiment was conducted during 2006, in a greenhouse of embrapa - cotton at campina grande, pb. the experimental design was totally randomized, with a factorial 4 x 4 + 1 design, consisting of four doses 5.0; 7.5; 10.0 and 12 g ha-1 of trifloxysulfuron sodium and four stages of the development of the plant (leaves cotyledon, two true leaves, two expanded leaves and four leaves) and an absolute control. in total 7 treatments were tested with four repetitions. the variables measured were growth reduction and dry matter of the castor been of the to cultivar brs nordestina. it was verified, for the variable growth reduction, reflected by the height and size of the plants, that there was a significant effect for doses and stages of the development and the interaction among them, and the youngest plants were more sensitive to the product. the herbicide that acts in the leaves and root, was phytotoxic to the castor been, cultivar brs nordestina, even in the lowest tested dose.
Uso adequado de casa-de-vegeta??o e de telados na experimenta??o agrícola
Beltro, Napole?o E. de M.;Fideles Filho, José;Figueirêdo, Ivana C. de M.;
Revista Brasileira de Engenharia Agrícola e Ambiental , 2002, DOI: 10.1590/S1415-43662002000300029
Abstract: this paper reviews the main factors affecting the use of greenhouses in agricultural experimentation. the effects of water quality, air temperature and solar irradiance are discussed along with size, placement and color of pots/recipients and use of water in irrigation. green screen should be avoided in greenhouses as they reflect the green light while absorbing the photosynthetically active red light. all the pots/recipients must be of the same color and size.
Rock paintings of mammals at Central, Bahia, Brazil
Beltro, Maria da Concei??o de M.C.;Locks, Martha;
Revista Brasileira de Zoologia , 1993, DOI: 10.1590/S0101-81751993000400018
Abstract: rock paintings of mammals have been studied in five of the 243 localities contained within the 270,000 km2 archeological region of central, bahia. from features of external morphology, it was possible to recognize 11 mammals represented in the paintings: for five, to attribute the species; another five, the genera; and, for one, merely the family. this study aims to underline the importance of prehistoric man's contribution, by way of these rock paintings, to our knowledge of the mammals depicted, both taxonomically and in terms of their distribution within the bounds of the project in the state of bahia.
Análisis comparativo del estado nutricional de vitamina D y de los hábitos de exposición solar de las participantes espa?olas (adolescentes y de edad avanzada) del Estudio de los Cinco Países (Proyecto OPTIFORD)
Rodríguez Sangrador,M.; Beltrán de Miguel,B.; Cuadrado Vives,C.; Moreiras Tuni,O.;
Nutrición Hospitalaria , 2011,
Abstract: introduction: vitamin d deficiency is known to be very common in adolescent girls and elderly women. aim: to analyze vitamin d status, vitamin d intake and solar exposure of spanish participants in the five countries study of optiford project. methods: questionnaires approved and validated of lifestyle and food consumption frequency applied. the biochemical analysis of 25-hidroxivitamin d and pth and the evaluation of the solar exposure (dosymeter uv viospor) were carried out. results: the average solar exposure of adolescent girls (1,519 j/m2) was double than elderly women (740 j/m2). the vitamin d status of adolescent girls in summer and winter was better than elderly women. conclusions: solar exposure habits are different between the two age groups. this fact, jointly to the lower body's capacity to synthesize vitamin d through exposure to the sun in the elderly, may justify the worse vitamin d status in this age group.
Influencia de la exposición solar y la dieta en el estado nutricional de vitamina D en adolescentes espa?olas: estudio de los cinco países (Proyecto OPTIFORD)
Rodríguez Sangrador,M.; Beltrán de Miguel,B.; Cuadrado Vives,C.; Moreiras Tuny,O.;
Nutrición Hospitalaria , 2010,
Abstract: introduction: vitamin d defficiency is a big public health concern, especially among women. for this reason, "the five countries study" was set up whithin the optiford project. this study aims at knowing the vitamin d status in adolescent and older women in five european countries according to their different dietary and behavioral habits. objectives: to analyze the relative contribution of sun exposure and the diet to the vitamin d status among 47 spanish adolescents participating in "the five countries study". methods: validated and standardized questionnaires (health, lifestyle, sun exposure, and frequency of food consumption), biochemical analysis (25-hydroxyvitamin d (s-25-ohd) and parathormone), and assessment of sun exposure (uv dosimeter). results: serum levels of s-25-ohd were higher durign the summertime than in winter (61.55 ± 12.85 nmol/l and 45.81 ± 9.29 nmol/l, respectively). fourtyfive percent of the sample had a worsening of their vitamin status in the winter, as compared with the summer (p < 0.0001). during the summer, vitamin d insufficiency (s-25-ohd ≤ 50 nmol/l) affected 17% of the population, going up to 63% in the winter. sixtysix percent of the sample did not reach the ir of vitamin d (5 g/day), being the fish the main dietary source of vitamin d. conclusions: only 34% of the participants had an adequate vitamin d status. both adequate sun exposure and vitamin d dietary intake are recommended in order to correct defficient and insufficient situations.
Análisis comparativo del estado nutricional de vitamina D y de los hábitos de exposición solar de las participantes espa olas (adolescentes y de edad avanzada) del Estudio de los Cinco Países (Proyecto OPTIFORD) Comparative analysis of vitamin D status and solar exposition habits in adolescent and elderly Spanish women. The five countries study (OPTIFORD Project)
M. Rodríguez Sangrador,B. Beltrán de Miguel,C. Cuadrado Vives,O. Moreiras Tuni
Nutrición Hospitalaria , 2011,
Abstract: Introducción: Mujeres adolescentes y de edad avanzada son importantes grupos de riesgo de sufrir déficit de vitamina D. Objetivo: Analizar las diferencias en la ingesta y estatus bioquímico de vitamina D, y en los hábitos de exposición solar de las participantes espa olas -adolescentes y mujeres de edad avanzada- del Estudio de los Cinco Países (Proyecto Optiford). Métodos: Se aplicaron cuestionarios homologados y validados (estilo de vida, frecuencia de consumo de alimentos, etc), análisis bioquímico de 25-hidroxivitamina D y PTH, y evaluación de la exposición solar (dosímetro UV VioSpor). Resultados: La exposición solar media de las adolescentes (1.519 J/m2) duplicó la de las mayores (740 J/m2). Las adolescentes presentaron un mejor estatus de vitamina D (61,55 nmol/l en verano y 45,81 nmol/l en invierno) que las ancianas (40,32 nmol/l en verano y 30,08 nmol/l en invierno) (p < 0,0001). Conclusiones: Los hábitos de exposición solar difieren significativamente entre adolescentes y mujeres de edad. Este hecho, junto con la menor aptitud para la síntesis cutánea de vitamina D en las segundas, puede justificar el peor estatus en esta vitamina. Introduction: Vitamin D deficiency is known to be very common in adolescent girls and elderly women. Aim: To analyze vitamin D status, vitamin D intake and solar exposure of Spanish participants in The Five Countries Study of Optiford Project. Methods: Questionnaires approved and validated of lifestyle and food consumption frequency applied. The biochemical analysis of 25-hidroxivitamin D and PTH and the evaluation of the solar exposure (dosymeter UV VioSpor) were carried out. Results: The average solar exposure of adolescent girls (1,519 J/m2) was double than elderly women (740 J/m2). The vitamin D status of adolescent girls in summer and winter was better than elderly women. Conclusions: Solar exposure habits are different between the two age groups. This fact, jointly to the lower body's capacity to synthesize Vitamin D through exposure to the sun in the elderly, may justify the worse vitamin D status in this age group.
Influencia de la exposición solar y la dieta en el estado nutricional de vitamina D en adolescentes espa olas: estudio de los cinco países (Proyecto OPTIFORD) Influence of sun exposure and diet to the nutritional status of vitamin D in adolescent Spanish women: the five countries study (OPTIFORD Project)
M. Rodríguez Sangrador,B. Beltrán de Miguel,C. Cuadrado Vives,O. Moreiras Tuny
Nutrición Hospitalaria , 2010,
Abstract: Introducción: La deficiencia de vitamina D representa un serio problema de salud pública, especialmente entre las mujeres. Por ello se puso en marcha el "Estudio de los Cinco Países", dentro del proyecto europeo OPTIFORD. Este estudio tiene como objeto conocer el estatus de vitamina D en mujeres adolescentes y de edad avanzada de cinco países europeos en función de sus distintos hábitos alimentarios y conductuales. Objetivos: Analizar la contribución relativa de la exposición solar y la dieta al estatus de vitamina D de las 47 adolescentes espa olas participantes en el "Estudio delos Cinco Países". Métodos: Cuestionarios homologados y validados (salud, estilo de vida, exposición solar y frecuencia de consumo de alimentos), análisis bioquímico (25 hidroxivitamina D -S-25-OHD- y parathormona) y evaluación de la exposición solar (dosímetro UV). Resultados: Los niveles séricos de S-25-OHD fueron más altos en verano que en invierno (61,55 ± 12,85 nmol/l y 45,81± 9,29 nmol/l, respectivamente). El 45% de la muestra empeoró su estatus vitamínico del verano al invierno (p < 0,0001). En el verano la insuficiencia de vitamina D (S-25-OHD ≤ 50 nmol/l) afectó al 17% de la población mientras aumentando hasta el 63% en invierno. El 66% de la muestra no alcanzó las IR de vitamina D (5 μg/día), siendo la principal fuente dietética de vitamina D el pescado. Conclusiones: únicamente el 34% de las participantes presentaron un estatus adecuado de vitamina D. Se recomienda una adecuada exposición solar e ingesta dietética de esta vitamina para corregir la situación de deficiencia e insuficiencia. Introduction: Vitamin D defficiency is a big public health concern, especially among women. For this reason, "The Five Countries Study" was set up whithin the OPTIFORD project. This study aims at knowing the vitamin D status in adolescent and older women in five European countries according to their different dietary and behavioral habits. Objectives: To analyze the relative contribution of sun exposure and the diet to the vitamin D status among 47 Spanish adolescents participating in "The Five Countries Study". Methods: Validated and standardized questionnaires (health, lifestyle, sun exposure, and frequency of food consumption), biochemical analysis (25-hydroxyvitamin D (S-25-OHD) and parathormone), and assessment of sun exposure (UV dosimeter). Results: Serum levels of S-25-OHD were higher durign the summertime than in winter (61.55 ± 12.85 nmol/l and 45.81 ± 9.29 nmol/l, respectively). Fourtyfive percent of the sample had a worsening of their vitamin status in the winter, as com
Page 1 /444607
Display every page Item


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