oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Search Results: 1 - 10 of 733 matches for " Air Lisboa Froes "
All listed articles are free for downloading (OA Articles)
Page 1 /733
Display every page Item
Winter Oilseed Crops after Soybeans as Tools for Weed Management in Brazilian Savannah Cropping Systems  [PDF]
Germani Concenco, Cesar Jose da Silva, Michely Tomazi, Rodolpho Freire Marques, Sabrina Alves dos Santos, Maxwell Eliezer dos Santos Alves, Waggner Gomes Palharini, Air Lisboa Froes, Denise Nascimento Fabris
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.515242
Abstract:

We aimed with this study to evaluate the potential of oilseed crops planted following soybean, in terms of their ability to inhibit the occurrence of weed species under Brazilian Savannah cropping systems. The long-term experiment was installed in 2010 at Dourados, MS, Brazil, and in completely randomized blocks design with five replications with 12 × 24 m plot size. For three consecutive years (2010/11, 2011/12 and 2012/13), soybeans were planted in all the area by October/November being harvested in February/March, when previously marked plots were planted in April with: (1) radish (Raphanus sativus); (2) rapeseed (Brassica napus); (3) crambe (Crambe abyssinica); (4) winter fallow-no plantation after soybeans. In all years the same crop was repeated at the same plots, with no crop rotation. Phytosociological characterization of weed species was carried out in winter (after oilseeds harvest), pre-planting and post-emergence of soybean for the three years. Relative abundance, frequency and dominance, as well as the importance value for each species, was obtained. Areas were also intra-characterized by the coefficients of Simpson, Shannon-Weiner and Shannon-Weiner’s Evenness Proportion, and areas were compared for species dissimilarity with Jaccard’s presence-only coefficient, by multivariate cluster analysis. Oilseed crops definitely contribute for sustainable weed management as a cultural tool. The most important oilseed crop weeds in the Savannah-like region of Brazil were Amaranthus hybridus, Richardia brasiliensis, Lepidium virginicum, Leonotis nepetifolia and Hybanthus parviflorus

QUAIS AS VANTAGENS E DESVANTAGENS DO TELETRABALHO E DAS ORGANIZA ES VIRTUAIS NA ERA DA INFORMA O?
Air Rabelo
Revista de Administra??o FACES Journal , 2000,
Abstract:
QUAIS AS VANTAGENS E DESVANTAGENS DO TELETRABALHO E DAS ORGANIZA ES VIRTUAIS NA ERA DA INFORMA O?
Air Rabelo
Revista de Administra??o FACES Journal , 2000,
Abstract:
ADVANCED SYNTHESIS OF LIGHT METALS
FH Froes,
F.H.
,Froes

金属学报(英文版) , 1996,
Abstract: The synthesis, processing and mechanical properties of the light metals, aluminum,magnesium and titanium Produced by advanced techniques are reviewed. Synthesis techniques to be addressed will include rapid solidification, spray deposition, mechanical alloying, plasma Processing and vapor deposition.
Toxicity of herbicides on Escherichia coli growth
Botelho, RG;Froes, CM;Santos, JB;
Brazilian Journal of Biology , 2012, DOI: 10.1590/S1519-69842012000100016
Abstract: agriculture uses a huge variety and quantity of chemicals. if, on one hand, the goal is to increase productivity, on the other hand these products contaminate aquatic environments. among these products, herbicides deserve greater attention in relation to contamination of aquatic environments due to their extensive use to weed control. this study was carried out because the effects of these molecules on aquatic microorganisms such as escherichia coli, is still unclear. using microdilution plate assays, escherichia coli were exposed to various commercial formulations of herbicides widely used in brazil. the herbicide paraquat was the only one able to prevent the growth of escherichia coli and is characterized as bacteriostatic.
WILS, O. , Wirtschaftseliten und Reform in Jordanien. Zur Relevanz von Unternehmer-Bürokraten-Netzwerken in Entwicklungsprozessen (élites économiques et réforme en Jordanie. De l'importance des réseaux d'entrepreneurs et de bureaucrates dans le processus de développement), Hamburg, Deutsches Orient Institut, 2003, 283 p. , 17 tableaux, 16 schémas.
Fran?oise de Bel-Air
Revue des Mondes Musulmans et de la Méditerranée , 2004,
Abstract: L'économie politique, discipline dont se réclame Oliver Wils, met ici en relief les dynamiques politiques à l' uvre dans la conception et dans l'instauration de réformes économiques. Particulièrement développée par les universitaires allemands (P. Pawelka, C. Schmid entre autres), elle permet utilement de rompre avec l'abondance des analyses stato-centrées comme avec l'économisme dominant les travaux des institutions internationales sur le Moyen-Orient. Cet ouvrage, version publiée de la thès...
El-AbedOroub, Unprotected: Palestinians in Egypt since 1948, Washington, DC, Institute for Palestine Studies / Ottawa: International Development Research Centre, 2009, 253 p.
Fran?oise de Bel-Air
Revue des Mondes Musulmans et de la Méditerranée , 2010,
Abstract: L’ouvrage proposé par Oroub El-Abed sur les Palestiniens d’égypte comble un manque : cette communauté n’avait, en effet, encore jamais fait l’objet d’une étude scientifique de grande ampleur telle que celle entreprise par l’auteur sous les auspices du programme Forced Migration and Refugee Studies de l’Université américaine au Caire. L’ambition initiale de Oroub El-Abed et de son équipe était de réaliser une enquête de terrain portant sur un échantillon de 300 ménages répartis dans 15 gouvern...
Caso para diagnóstico
Froes, Giselle Carvalho;Pereira, Luciana Baptista;Rocha, Vanessa Barreto;
Anais Brasileiros de Dermatologia , 2009, DOI: 10.1590/S0365-05962009000400017
Abstract: dyschromatosis symetrica hereditaria (reticulate acropigmentation of dohi) is a rare autosomal dominant disease. it starts as hyperpigmented and hypopigmented macules in reticular pattern on the extremities. we present a case of a 13-year old boy that showed hyper and hypopigmented macules distributed on the dorsal aspects of the extremities, freckle-like pigmented macules on the face and periorbital atrophic linear lesions. differentiation with others reticulate pigmentation manifestations is necessary.
Educa??o à distancia no ensino do diagnóstico por imagem em medicina veterinária: relato de experiência
Oliveira, Mauro Eduardo Soares de;Zanatta, Rosana;Froes, Tilde Rodrigues;
Ciência Rural , 2010, DOI: 10.1590/S0103-84782010005000111
Abstract: this study aims to report an experience of offering a course distance learning of small animal abdominal imaging diagnostic (radiology and ultrasonography). the purpose is to offer elements for a reflection on a conception distance education, as an efficient modality of education, aiming at enabling a teaching with quality to a determined clientele. authors believe that distance learning is an adequate pedagogic tool to qualify veterinarians who have no access to traditional graduate studies, geographically disperse, who are unable to escape from the routine of their personal and professional lives; distance learning is an effective and possible pedagogical strategy, confirmed in the current case with final certification of 70% on average participators.
Efeitos genotóxicos em profissionais expostos aos anestésicos inalatórios
Chinelato, Ana Regina;Froes, Nívea Dulce Tedeschi Conforti;
Revista Brasileira de Anestesiologia , 2002, DOI: 10.1590/S0034-70942002000100010
Abstract: background and objectives: this study compared physicians exposed to anesthetics to non-exposed individuals, aiming at investigating chromosomal changes, the possible interference of inhalational anesthetics on cell kinetics and the genotoxic risk associated to occupational exposure. methods: peripheral blood lymphocytes were temporarily cultured to obtain metaphases needed for the analysis of chromosomal aberrations and sister chromatid exchanges. results: cytogenetic analysis has shown an increased frequency in chromosomal aberrations per cell in the exposed group as compared to controls, confirming the clastogenic effect of such compounds. anesthetic gases, however, had no inducing effects on sister chromatid exchanges. the comparison between proliferation and mitotic indices has also shown no significant differences between exposed and control groups. conclusions: our data suggest that anesthesiologists may represent a group at risk among exposed people, and that working conditions should be improved.
Page 1 /733
Display every page Item


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