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Search Results: 1 - 10 of 170989 matches for " E.;Medeiros "
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Aprendizagem na convivência: o estágio curricular em enfermagem
Lauriana Medeiros e Costa
Revista Eletr?nica de Enfermagem , 2008,
Abstract: Trata-se de uma pesquisa analítica de cunho qualitativo, com o objetivo de analisar o processo de aprendizagem de estudantes do Curso de Enfermagem da UFRN em Estágio Curricular Supervisionado (ECS) na Estratégia de Saúde da Família (ESF), tendo como fio condutor a aprendizagem na convivência. Para isto, foi apresentado um resgate histórico desta atividade acadêmica no ensino de enfermagem, assim como foi discutida a relevancia da ESF como cenário da forma o profissional em saúde. Para a investiga o empírica, foram entrevistados dez estudantes do oitavo período do curso, que estagiavam em unidades de saúde da família do Distrito Sanitário Oeste de Natal/RN. O aporte referencial teve como pressuposto epistemológico as idéias do educador Humberto Maturana, o qual demonstrou que a aprendizagem na natureza e também entre seres humanos acontece dentro das rela es dialógicas de convivência, nas quais é essencial a aceita o do outro, a afetividade (o amor) e o diálogo, como estímulos à aprendizagem. As falas dos estudantes foram sendo incorporadas às categorias analíticas, definidas à priori. Ficou demonstrado que o estudante vivenciou uma aprendizagem significativa, estimulada por todos aqueles que compartilharam da convivência, a saber: enfermeiro/preceptor, docente/supervisor, equipe de saúde da família e comunidade. Neste processo, foram comuns vários sentimentos, como a alegria, a satisfa o, a autoconfian a, a afetividade, assim como, em um sentido oposto, a tristeza, a indigna o, a sensa o de impotência e o medo. O aprendizado do relacionamento interpessoal foi apresentado como o mais relevante da experiência acadêmica, dando conta, portanto, da importancia da afetividade no processo de aprendizagem, conforme assinala Maturana. Recomenda-se que o ensino de enfermagem continue priorizando as unidades de saúde da família como cenário educativo na Aten o Básica, observando-se a importancia de inserir os estudantes em ambientes acolhedores, de forma que a aprendizagem possa ser estimulada.
Estágio curricular supervisionado na Gradua??o em Enfermagem: revisitando a história
Costa, Lauriana Medeiros e;Germano, Raimunda Medeiros;
Revista Brasileira de Enfermagem , 2007, DOI: 10.1590/S0034-71672007000600016
Abstract: this literature review deals with curricular supervisioned traineeship in the nursing undergraduate program, whose objectives were to understand how the program is currently structured and to identify today's challenges, by tracing back its history and understanding the laws governing the program. issues of revista brasileira de enfermagem published between 1954 and 2006 were used as a main source. the study revealed that this academic activity has gone through several transformations since it was first structured in 1972, at a time when nursing was carried out from a biologicist and hospital-centered perspective. after 1994, it sought to have a structure based on the integrality and articulation between theory and practice, and teaching and service, with a view to the construction of the brazilian public health system - sus; a process that was enhanced in 2001 upon the implementation of the brazilian education guidelines.
The Shape of Color: Retinal Cones and Spectral Dispersion
John A Medeiros,Nancy E Medeiros
PeerJ , 2015, DOI: 10.7287/peerj.preprints.331v1
Abstract: Why are the retinal color receptors cone-shaped? This is not a trivial question: the cone shape is evidently a universal feature of the color receptors while the achromatic rod receptors are always rod-shaped. What might be behind this dichotomy has not previously been explored in any meaningful way. We suggest here that the cone shape is not an incidental feature, but actually integral to cone function. We describe a waveguide mode cut-off effect that can physically separate light into its spectral colors along the length of a small, tapered waveguide, i.e., a cone. This effect converts the spectrum of incident light into position-dependent information along a tapered fiber; long-wavelength red light is excluded from the cone first, and the shortest-wavelength, blue light last. The retinal cone optical dimensions are apparently ideally tuned to exhibit this spectral dispersion. Converting this length-correlated information into a readable color code can be accomplished through translation into a time-correlated code through the microsaccadic movements of the eye to synchronize the time-delayed electrical signal generated by photoabsorption events from different positions along the receptor. Such a time code explains the existence of subjective color effects such as that induced by Benham’s Top. Detecting color information through such a waveguide effect also explains the Stiles-Crawford Effect of the Second Kind (SC II) whereby the apparent color of monochromatic light depends on its angle of incidence at the retina. The long puzzling similarity of violet and purple is directly explained by excitation of second-order waveguide mode propagation for short-wavelength light in this model. This dynamic model of color vision also accounts for the breakdown of statically-established metameric color matches under dynamic presentation, a feature of color vision that contradicts the basic assumptions of the standard Young-Helmholtz trichromatic model. Further underscoring the utility of the our proposed model is that it explains the major features of common forms of color blindness as a consequence of “mistuning” of the cone parameters.
Tratamento de pneumonia em pacientes hospitalizados 3/4 resultado de um estudo clínico multicêntrico utilizando uma cefalosporina de quarta gera??o (cefepima)
Medeiros, E. A. S. de;
Revista da Associa??o Médica Brasileira , 1999, DOI: 10.1590/S0104-42301999000100002
Abstract: objective: to evaluate efficacy and safety of cefepime in severe pneumonia of hospitalized patients. design and patients: a prospective, multicenter, open trial was performed with 148 patients (62 patients with nosocomial pneumonia; 34 with community-acquired pneumonia and 52 undefined forms). cefepime was intravenously administered (1,000 to 2,000mg every 12 hours), and doses were adjusted for renal function. the efficacy endpoint was clinical response at 48 hours after completion of therapy. results: the mean age was 56.4 ± 20,31 years. the most common bacterias isolated from patients with nosocomial pneumonia were: 5 (8.06%) pseudomonas aeruginosa; 7 (11.29%) pseudomonas sp.; 6 (9.68%) klebsiella sp.; 3 (4.84%) e.coli; 2 (3.23%) acinetobacter baumannii; 3 (4.84%) staphylococcus aureus; 3 (4.84%) streptococcus pneumoniae; 5 (8.06%) others. the most common isolates from patients with community-acquired pneumonia were: 2 (5.88%) streptococcus pneumoniae; 1 (2.94%) s. aureus; 2 (5.88%) p. aeruginosa and 2 (5.88%) k. pneumoniae. clinical efficacy was demonstrated in 137/148 (92.56%) of the cases since improvement was obtained in 20.27% and healing in 72.29%. failure of the treatment was observed in 10 patients (6.75%) and one patient the evaluation was not possible. adverse events were reported for 5/148 patients (3.38%). conclusion: our data suggest that cefepime was safe and effective for treatment of severe pneumonia in hospitalized patients.
Tratamento de pneumonia em pacientes hospitalizados resultado de um estudo clínico multicêntrico utilizando uma cefalosporina de quarta gera o (cefepima)
Medeiros E. A. S. de
Revista da Associa??o Médica Brasileira , 1999,
Abstract: OBJETIVO: Avaliar a eficácia e a seguran a da cefepima no tratamento de pneumonia grave em pacientes hospitalizados. CASUíSTICA E MéTODOS: Realizamos um estudo perspectivo, multicêntrico, n o comparativo envolvendo 148 pacientes (62 com pneumonia hospitalar, 34 com pneumonia comunitária e 52 formas indefinidas). A cefepima foi administrada por via intravenosa (1.000 a 2.000mg cada 12 horas), sendo que as doses também foram ajustadas para a fun o renal. A resposta clínica foi avaliada 48 horas após o término da terapêutica com cefepima. RESULTADOS: A média de idade foi de 56,4 ± 20,31 anos. As bactérias mais comuns isoladas nos pacientes com pneumonia hospitalar foram: 5 Pseudomonas aeruginosa (8,06%); 7 Pseudomonas sp. (11,29%); 6 Klebsiella sp. (9,68%); 3 E. coli (4,84%); 2 Acinetobacter baumannii (3,23%); 3 Staphylococcus aureus (4,84%); 3 Streptococcus pneumoniae (4,84%); 5 outras (8,06%). Os mais comuns isolados nos pacientes com pneumonia adquirida na comunidade foram: 2 Streptococcus pneumoniae (5,88%); 1 S. aureus (2,94%); 2 P. aeruginosa (5,88%) e 2 K. pneumoniae (5,88%). A eficácia clínica foi observada em 137/148 dos casos (92,56%) sendo que a resolu o parcial foi obtida em 20,27% e cura em 72,29%. Falha de tratamento foi encontrado em 10 pacientes (6,75%) e um caso n o foi avaliado. Eventos adversos foram observados em 5/148 pacientes (3,38%). CONCLUS O: Nosso estudo sugere que a cefepima é seguro e efetivo no tratamento de pneumonia grave em pacientes hospitalizados.
Pull Off test to evaluate the compressive strength of concrete: an alternative to Brazilian standard techniques
Pereira, E.;Medeiros, M. H. F. de;
Revista IBRACON de Estruturas e Materiais , 2012, DOI: 10.1590/S1983-41952012000600003
Abstract: to estimate the compressive strength of concrete is necessary in many reinforced concrete structures inspection works. in brazil, the standard tests for this purpose are: compressive test in drilled cores, rebound hammer test and ultrasonic test. in the united states and europe are also regulated other techniques. the aim of this paper is to analyze the use of pull off test as an inspection tool of concrete and also disclose the possibility of use of complementary techniques to the standard ones in brazil. the results show that the pull off test results in high correlation (r2> 0.93) with the compressive strength, measured in cylindrical and prismatic specimens. the rebound hammer test did not show satisfactory correlation (r2?0.6) for the case of cylindrical specimens. the ultrasonic test showed high correlation (r2> 0.98), but behaves differently with the shape changing of the specimens.
Sobre a possibilidade de corre??o de deficiências minerais no arroz (Oryza sativa L. cv. IAC 47 E IAC 435)
Medeiros, A.A.;Malavolta, E.;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1980, DOI: 10.1590/S0071-12761980000100025
Abstract: plants were grown in nutrient solution under conditions of deficiency of n, p, k, s, b, cu or zn till the stage of tillering. an attempt was then made to ascertain the extent of correction of the deficiencies by supplying the element lacking in the substrate either in the nutrient solution or through foliar application, the results of the corrective tratments are presented in table 15 in which yield data are given as percentage of those obtained with the non deficient plants.
Eficiência comparada da aplica??o radicular e foliar de macro e micronutrientes para a corre??o de deficiências minerais no arroz (Oryza sativa L.)
Medeiros, A.A.;Malavolta, E.;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1980, DOI: 10.1590/S0071-12761980000100021
Abstract: rice plants cultivars iac 47 (upland) an iac 435 (lowland) were grown in nutrient solution either under low levels of n, p, k or s, or in the absence of b, cu or zn. at the tillering stage the deficient element was supplied via nutrient solution or through leaf feeding. yield data and leaf analyses allowed for the following general conclusions to be drawn: (1) the deficiency of a given element affected differently grain production in the two varieties; (2) for a given nutrient the same nutritional status, i.e., "normal" or "deficient" could be defined by different leaf levels; (3) additional yield (due to corrective measures) divided by quantity of element applied was higher in the case of foliar feeding of macronutrients; the opposite took place in the case of micronutrients.
Nota sobre o cultivo do arroz (Oryza sativa L.), cv. IAC 47 e IAC 435 em solu??o nutritiva
Medeiros, A.A.;Malavolta, E.;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1980, DOI: 10.1590/S0071-12761980000100023
Abstract: in a preliminary trial, a comparison was made of two nutrient solutions, hoagland & arnon (1950) number 2, and karim & vlamis (1962), both in the presence and in the absence of forced aeration. plants grown during 40 days (till the middle of the tillering stage) showed a higher dry matter yield as well as a higher n content when receiving the first solution, which contains both nitrate and ammonium n, when compared with the latter whose nitrogen is only in the no-3form. aeration was not necessary for maximum growth in either case.
Exigências nutricionais do arroz (Oryza sativa L., cv. IAC 47 e IAC 435)
Medeiros, A.A.;Malavolta, E.;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1980, DOI: 10.1590/S0071-12761980000100026
Abstract: analysing the various organs of plants grown in nutrient solution until full maturity, an estimate was obtained of the mineral requirements of both cultivars, which in shown in table 4. differences found among cultivars were due primarily to yield level rather than to contents of elements per unity of dry matter.
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