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Search Results: 1 - 10 of 185568 matches for " Gladys Ferreira de; "
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Plantas invasoras em sistemas agroflorestais com cupua?uzeiro no município de Presidente Figueiredo (Amazonas, Brasil)
Sousa, Gladys Ferreira de;Oliveira, Luiz Antonio de;Silva, José Ferreira da;
Acta Amazonica , 2003, DOI: 10.1590/S0044-59672003000300002
Abstract: the increase of weed infestation on agricultural systems cause damages to the crops, decreasing plant productivity by the direct competition or by alelopathy. this work have undertaken a survey and phytosociological analysis of some aspects of weed species that occur in agroforestry systems with cupuassu. the treatments consisted of three crops arrangements (cassava+fruit trees; annuals crops+fruit trees; passion fruit+fruit trees), and three fertilizer management (npk+om, with phosphorus and phosphorus+leguminous). three harvests of weed plants were accomplished, being six samples of 0,25 m2 per plot. the identification of the species of the weed plants were carried out in the laboratory. the 55 weed species identified were distributed in 23 botanical families, being 43 of dicotyledonous species, 11 of monocotyledonous, and one of pteridophyta. the families poaceae (monocotyledonous) and asteraceae (dicotyledonous) were the most frequent and with large number of individuals. the most frequent species and with large number of plants per m2 were paspalum conjugatum p.j. bergius (area a) and homolepis aturensis (kunth) chase (area b) of the poaceae family; ageratum conyzoides l. of the asteraceae family, presented the largest density. the similarity coefficients varied among the areas studied, being the largest indexes observed in the treatments that received fertilizers with organic matter (npk+om), particularly in the system cassava+fruit trees. the agricultural practices and the soil and crops management systems, had a great influence to the flora composition and in the weed plants communities size in each local area. the number of monocotyledonous was smaller in the treatment with npk+om than in the other treatments.
Microbial biomass and soil chemical properties under different land use systems in northeastern Pará
Lopes, Elessandra Laura Nogueira;Fernandes, Antonio Rodrigues;Lourdes Pinheiro Ruivo, Maria de;Cattanio, José Henrique;Souza, Gladys Ferreira de;
Revista Brasileira de Ciência do Solo , 2011, DOI: 10.1590/S0100-06832011000400006
Abstract: the increase in agricultural production in the brazilian amazon region is mostly a result of the agricultural frontier expansion, into areas previously influenced by humans or of native vegetation. at the same time, burning is still used to clear areas in small-scale agricultural systems, leading to a loss of the soil productive capacity shortly after, forcing the opening of new areas. this study had the objective of evaluating the effect of soil preparation methods that involve plant residue shredding, left on the surface or incorporated to the soil, with or without chemical fertilization, on the soil chemical and biological properties. the experiment was conducted in 1995, in an experimental field of yellow latosol (oxisol) of the embrapa amaz?nia oriental, northeastern pará (brazil). the experiment was arranged in randomized blocks, in a 2x6 factorial design, with two management systems and six treatments evaluated twice. the management systems consisted of rice (oriza sativa), followed by cowpea (vigna unguiculata) with manioc (manihot esculenta). in the first system the crops were planted in two consecutive cycles, followed by a three-year fallow period (natural regrowth); the second system consisted of one cultivation cycle and was left fallow for three years. the following treatments were applied to the secondary forest vegetation: slash and burn, fertilized with npk (q+npk); slash and burn, without fertilizer npk (q-npk); cutting and shredding, leaving the residues on the soil surface, fertilized with npk (c+npk); cutting and shredding, leaving residues on the soil surface, without fertilizer (c-npk); cutting and shredding, with residue incorporation and fertilized with npk (i+npk); cutting and shredding, with residue incorporation and without npk fertilizer (i-npk). the soil was sampled in the rainier season (april 2006) and in the drier season (september 2006), in the 0-0.1 m layer. from each plot, 10 simple samples were collected in order to generate a co
Tejido precolombino, inicio de la actividad femenina.
Gladys Tavera de Téllez
Historia Crítica , 1994,
Planejamento e aspectos ambientais envolvidos na disposi??o final de lodos das esta??es de tratamento de água da Regi?o Metropolitana de S?o Paulo
Januário, Gladys Fernandes;Ferreira Filho, Sidney Seckler;
Engenharia Sanitaria e Ambiental , 2007, DOI: 10.1590/S1413-41522007000200002
Abstract: the disposal of sludge produced by water treatment plants in an environmentally safe manner is one more challenge to be faced by the sanitation companies and has been given more attention in brazil and in the metropolitan area of sao paulo (masp). the purpose of this work is to present the existing alternatives for use and final disposal of sludge produced by the water treatment plants (wtp) of the masp. in this respect, several techniques for use and disposal of sludge performed in brazil and worldwide have been investigated, and their technical and environmental conditions. the amount of sludge generated in the masp and the existence of or the forecast to establish sludge thickening and dewatering systems have been evaluated and based on this information alternatives have been identified for use and disposal which are technically and environmentally feasible for sludge produced by the wtp in the masp.
An Ongoing Epidemic of Birth Defects  [PDF]
Gladys Cossio, Alberto Bissot, Mireya de Rivas, Luis Morales, Paul Gallardo, David Ellis, Judith Hal
Pharmacology & Pharmacy (PP) , 2013, DOI: 10.4236/pp.2013.43045

In the 1990s, misoprostol (synthetic prostaglandin E1 analogue) was found to be an effective abortive agent when taken orally and became widely used in Latin America as a means to terminate unwanted pregnancies. A variety of congenital anomalies have been observed among the children of women who ingested misoprostol, but failed to terminate their pregnancy. We report here eight years of experience in Panama with the detection and follow-up of the malformations seen in infants associated with the use of misoprostol prostaglandin during the first trimester of pregnancy. During the period between April 1995 and March 2003, we identified 63 infants at the Panama’s Children’s Hospital who were exposed to misoprostol while in the womb and who were born with malformations. These infants were evaluated by a team of neonatologists, geneticists, cardiologists, ophthalmologists, and radiologists.

Auto-incompatibilidade em Miconia ciliata (L.C.Rich.) DC. (Miconieae - Melastomataceae)
Melo, Gladys Flavia de;Machado, Isabel Cristina;
Acta Botanica Brasilica , 1998, DOI: 10.1590/S0102-33061998000200002
Abstract: miconia ciliata is a shrub whith flowers over a period of 11 months. the flowers are hermaphrodite with diurnal anthesis. probably miconia ciliata exhibits gametophytic incompatibility - pollen tube growth's interrupted in the style. bees of the family halictidae were observed to use the vibration technique to extract pollen (buzz pollination). only few flowers per inflorescence open each day. which probably induces the effective pollinators to visit a larger number of inflorescence in each individual plant, promoting cross pollination. reproductive success in miconia ciliata is favoured by the high frequency of pollinators visits, high p/o ration and high pollen fertility.
Interpretación económica de los problemas lineales, primal y dual
Beltrán de Rodríguez Gladys
Revista Colombiana de Estadística , 1980,
An Approach for Personalized Social Matching Systems by Using Ant Colony  [PDF]
Luziane Ferreira de Mendon?a
Social Networking (SN) , 2014, DOI: 10.4236/sn.2014.32013

Personalized social matching systems can be seen as recommender systems that recommend people to others in the social networks, with desirable skills/characteristics. In this work, an algorithm based on Ant Colony is proposed to solve the optimization problem of clustering/matching people in a social network specifically designed for this purpose; during this process, their personal characteristics and preferences (and the degree of importance thereof) are taken into account. The numerical results indicate that the proposed algorithm can successfully perform clustering with a variable number of individuals.

Anatomia foliar de Richterago Kuntze (Mutisieae, Asteraceae)
Melo-de-Pinna, Gladys Flávia de A.;
Acta Botanica Brasilica , 2004, DOI: 10.1590/S0102-33062004000300017
Abstract: leaf anatomy of richterago species revealed rather variability concerning mesophyll organization and stomata arrangement. as a character of taxonomic value, only non-glandular thricomes were used to compare r. arenaria and r. lanata,r. conduplicata and r. radiata, whose leaves are morphologically similar. anatomical xeromorphic characters, e.g. the bundles sheath extensions and terminal tracheids were observed in all species. the waterside species (r. polymorpha e r. riparia) showed hydathodes in the leaves, which represent the first record in mutisieae.
Continuing Education for Professional Development in Higher Education Teaching  [PDF]
Jacques de Lima Ferreira, Gisele Rietow Bertotti
Creative Education (CE) , 2016, DOI: 10.4236/ce.2016.710148
Abstract: This paper presents a qualitative research of the case study type that was held with professionals from various fields of knowledge (law, nursing, administration, education, accounting, medicine, physical therapy, journalism, economics, engineering, etc.), undergraduates who participated in a continuing education course, specifically, a specialization in continuing education to work in higher education in a community institution. The research problem that guided the research was: What are the contributions, implications and impacts of continuing education for teaching in higher education from the perceptions of professionals from various fields of knowledge? The research aimed to analyze the professionals’ repercussions of the process of continuing education for the practice of teaching in higher education. The research involved three classes of specialization of the following years: 2013, with 25 students; 2014 with 22 students and 2015 with 23 students, totaling 70 subjects investigated. Data were collected from a questionnaire with open and closed questions which has enabled content analysis from the perspective of Bardin (2011) with the help of Atlas Ti software. The results showed that the participation in the continuing education course contributed to teaching in higher education through the possibility of obtaining pedagogical knowledge and practical application of these, which culminated in a reflection on pedagogical practice, impacting directly on the professional work of these teachers, who only felt the lack of a more detailed work with the education of the distance mode.
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