975 resultados para 2-Epoxy-3-(p-nitrophenoxy) propane


Relevância:

100.00% 100.00%

Publicador:

Resumo:

O presente relatório é fruto da Prática de Ensino Supervisionada, realizada no ano letivo 2014/2015 na Escola Básica 2, 3 com Ensino Secundário Cunha Rivara, no âmbito do Mestrado em Ensino do Português no 3.º Ciclo do Ensino Básico e Ensino Secundário e de Espanhol nos Ensinos Básico e Secundário, sob a orientação do Professor Doutor António Ricardo Mira. Esta fase prática do mestrado assume-se como momento charneira na formação de futuros professores, porquanto representa o espaço ideal para aferir e testar métodos e técnicas aplicáveis aos processos de ensino/aprendizagem. Nesse sentido, e partindo do pressuposto de que o aluno deve ser o ator principal ao longo deste processo, este relatório assume uma função descritiva, mas, em simultâneo, outra dimensão, tão ou mais importante, no domínio da reflexão e da interiorização de práticas pedagógico-didáticas e de comportamentos relacionais, assumidos durante este processo. Assim, desenvolve-se em cinco componentes, que se complementam: preparação científica, pedagógica e didática; planificação e condução de aulas e avaliação de aprendizagens; análise da prática de ensino; participação na escola e desenvolvimento profissional; ABSTRACT: This report is the result of Supervised Teaching Practice, held in the school year 2014/2015 at the Basic and Secondary School 2, 3 “Cunha Rivara”, within the Master degree: “Teaching Portuguese in the 3rd cycle of Basic Education and Secondary Education and Spanish in basic and secondary education”, under the guidance of Professor Ricardo Antonio Mira. This practice of master stage is assumed as a key moment in the training of future teachers, because it is the ideal place and moment to measure and test methods and techniques applicable to teaching / learning processes. Accordingly, and assuming that the student must be the main actor throughout this process, this report takes a descriptive function, but at the same time, another dimension, equally important in the field of reflection and practices internalization, pedagogical-didactic and relational behaviors made during this process. Thus it develops into five components, which complement each other: scientific, pedagogical and didactic preparation; planning and conducting classes and learning evaluation; analysis of the teaching practice; participation in school and professional development.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

O presente projeto de investigação tem como objetivo analisar as alterações na Educação Especial ao longo dos tempos e as implicações destas alterações no que diz respeito aos alunos com Perturbação de Hiperatividade e Défice de Atenção, Assim são apresentadas e desenvolvidas teoricamente noções básicas sobre a evolução da Educação Especial até à atualidade, descrita sucintamente o que é a Perturbação de Hiperatividade e Défice de Atenção, quais as suas causas e consequências, tal como os modos de diagnóstico e de tratamento atualmente disponíveis. Para além disso, e já numa vertente mais prática, esta investigação tem também como objetivo comparar dois estudos relativos ao apoio escolar de alunos com Perturbação de Hiperatividade e Défice de Atenção, as consequências das suas dificuldades e quais as estratégias postas em prática em sala de aula pelos professores, estudos esses realizados com alunos sinalizados ao abrigo de dois Decretos-Lei distintos. Em suma, após revisão da literatura apropriada, primeiramente pretende-se analisar as estratégias utilizadas em sala de aula, a posição dos professores de alunos com PHDA e também concluir quais as alterações provocadas nas escolas pelo Decreto-Lei 3/2008. Neste sentido são ainda analisadas as possíveis implicações na elegibilidade de alunos com PHDA para apoio de Educação Especial e as consequências no processo de ensino de alunos com PHDA, no que diz respeito às estratégias a usar em sala de aula e aos objetivos de ensino.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Este estudo tem como objetivo principal conhecer os hábitos, conceções e práticas de leitura dos alunos dos 2º e 3º ciclos do ensino básico, assim como dos seus professores, encarregados de educação e assistentes operacionais, da EB1,2,3/JI/S Padre Maurício de Freitas, ilha das Flores, arquipélago dos Açores. O enquadramento teórico deste estudo está organizado em três partes: a primeira aborda a leitura como uma competência basilar para aceder ao conhecimento; a segunda incide sobre a formação dos leitores e mediadores nessa construção; a terceira apresenta conceções de alunos, professores, pais e assistentes operacionais sobre a leitura. Tendo em conta a natureza do estudo, enveredámos por um paradigma de investigação interpretativo, numa abordagem mista, recorrendo a dados qualitativos e quantitativos. Realizámos, testámos, reformulámos e aplicámos quatro questionários, destinados a cada grupo participante neste estudo. Os resultados do estudo mostram que o gosto pela leitura é transversal a todos os participantes no estudo, embora a prática da leitura seja pouco sistemática. Durante a infância, a maioria dos alunos teve contacto com atividades de promoção de leitura, desenvolvidas pelos pais, embora de forma pouco constante. As conceções que apresentam nem sempre são coincidentes com as práticas, sugerindo mais um desejo do que uma prática efetiva. A maior parte dos participantes vê a leitura como um ato de prazer e associa-a à aprendizagem e ao conhecimento. O estudo revela também que a generalidade dos inquiridos está convicto de que os hábitos de leitura afetam o desempenho/sucesso escolar. Os professores promovem, sobretudo, a leitura funcional e analítica, mais frequentemente na disciplina de Português. A biblioteca da escola é vista, pelos alunos, essencialmente, como um espaço para passar o tempo, o que é, de certa forma, corroborado pelos professores destacados na biblioteca. A generalidade dos participantes aponta várias atividades para dinamizar este espaço; contudo, são os Assistentes Operacionais que mostram maior disponibilidade para se envolver em atividades de promoção da leitura.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Dissertação de Mestrado, Ciências da Linguagem, Faculdade de Ciências Humanas e Sociais, Universidade do Algarve, 2015

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Nowadays, composite resins are the direct restorative materials more important in dental clinical performance, due to their versatility and aesthetic excellence. Bis-GMA (2,2-bis[4(2-hydroxy-3-metacryloxypropoxy)phenil]propane) is the base monomer more frequently used in restorative composite resins. However, this monomer presents some disadvantages, such as high viscosity and two aromatic rings in its structure that can promote allergic reactions to the humans. In this work, the main purpose was to synthesize new monomers from glycidyl methacrylate to use in dental restorative materials. Structural characterization of the monomers was carried out through FTIR and NMR 1H, and eight composites were produced from the new monomers, by addition of silane-treated alumino silicate particles (inorganic filler) and a photocuring system (camphorquinone and ethyl 4-dimethylaminebenzoate). The composites were analyzed by environmental scanning electronic microscopy and the water sorption and solubility, compressive strength and elastic modulus were determined. A commercial composite resin [Z100 (3M)] was used to comparison effect. The new composites presented general characteristics similar to the commercial ones; however, they didn t present the properties expected. This behavior was attributed to the lower degree of monomer reaction and to the granulometry and size distribution of the mineral filler in the polymeric matrix

Relevância:

100.00% 100.00%

Publicador:

Resumo:

This publication is volume 2, issue 3 of the University of South Carolina Publications. Series III. Biology. on taxonomic studies of the flora and fauna of South Carolina.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

A bimonthly literary magazine edited by Zhou Shoujuan 周瘦鵑, featuring fiction, topical articles, and entertainment features, published from September 1921 through November 1925.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Background: There is a growing trend for individuals to seek health information from online sources. Alcohol and other drug (AOD) use is a significant health problem worldwide, but access and use of AOD websites is poorly understood. ----- ----- Objective: To investigate content and functionality preferences for AOD and other health websites. Methods: An anonymous online survey examined general Internet and AOD-specific usage and search behaviors, valued features of AOD and health-related websites (general and interactive website features), indicators of website trustworthiness, valued AOD website tools or functions, and treatment modality preferences. ----- ----- Results: Surveys were obtained from 1214 drug (n = 766) and alcohol website users (n = 448) (mean age 26.2 years, range 16-70). There were no significant differences between alcohol and drug groups on demographic variables, Internet usage, indicators of website trustworthiness, or on preferences for AOD website functionality. A robust website design/navigation, open access, and validated content provision were highly valued by both groups. While attractiveness and pictures or graphics were also valued, high-cost features (videos, animations, games) were minority preferences. Almost half of respondents in both groups were unable to readily access the information they sought. Alcohol website users placed greater importance on several AOD website tools and functions than did those accessing other drug websites: online screening tools (χ²2 = 15.8, P < .001, n = 985); prevention programs (χ²2 = 27.5, P < .001, n = 981); tracking functions (χ²2 = 11.5, P = .003, n = 983); self help treatment programs (χ²2 = 8.3, P = .02, n = 984); downloadable fact sheets for friends (χ²2 = 11.6, P = .003, n = 981); or family (χ²2 = 12.7, P = .002, n = 983). The most preferred online treatment option for both the user groups was an Internet site with email therapist support. Explorations of demographic differences were also performed. While gender did not affect survey responses, younger respondents were more likely to value interactive and social networking features, whereas downloading of credible information was most highly valued by older respondents. ----- ----- Conclusions: Significant deficiencies in the provision of accessible information on AOD websites were identified, an important problem since information seeking was the most common reason for accessing these websites, and, therefore, may be a key avenue for engaging website users in behaviour change. The few differences between AOD website users suggested that both types of websites may have similar features, although alcohol website users may more readily be engaged in screening, prevention and self-help programs, tracking change, and may value fact sheets more highly. While the sociodemographic differences require replication and clarification, these differences support the notion that the design and features of AOD websites should target specific audiences to have maximal impact.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

The purpose of the present study was to examine the influence of 3 different high-intensity interval training regimens on the first and second ventilatory thresholds (VT1 and VT2), anaerobic capacity (ANC), and plasma volume (PV) in well-trained endurance cyclists. Before and after 2 and 4 weeks of training, 38 well-trained cyclists (VO2peak = 64.5 +/- 5.2 ml[middle dot]kg-1[middle dot]min-1) performed (a) a progressive cycle test to measure VO2peak, peak power output (PPO), VT1, and VT2; (b) a time to exhaustion test (Tmax) at their VO2peak power output (Pmax); and (c) a 40-km time-trial (TT40). Subjects were assigned to 1 of 4 training groups (group 1: n = 8, 8 3 60% Tmax at Pmax, 1:2 work-recovery ratio; group 2: n = 9, 8 x 60% Tmax at Pmax, recovery at 65% maximum heart rate; group 3: n = 10, 12 x 30 seconds at 175% PPO, 4.5-minute recovery; control group: n = 11). The TT40 performance, VO2peak, VT1,VT2, and ANC were all significantly increased in groups 1, 2, and 3 (p < 0.05) but not in the control group. However, PV did not change in response to the 4-week training program. Changes in TT40 performance were modestly related to the changes in VO2peak, VT1, VT2, and ANC (r = 0.41, 0.34, 0.42, and 0.40, respectively; all p < 0.05). In conclusion, the improvements in TT40 performance were related to significant increases in VO2peak, VT1,VT2, and ANC but were not accompanied by significant changes in PV. Thus, peripheral adaptations rather than central adaptations are likely responsible for the improved performances witnessed in well-trained endurance athletes following various forms of high-intensity interval training programs.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

OBJECTIVE To determine whether a microsatellite polymorphism located towards the 3' end of the low density lipoprotein receptor gene (LDLR) is associated with obesity. DESIGN A cross-sectional case-control study. SUBJECTS One hundred and seven obese individuals, defined as a body mass index (BMI) ≤ 26 kg/m2, and 163 lean individuals, defined as a BMI < 26 kg/m2. MEASUREMENTS BMI, blood pressure, serum lipids, alleles of LDLR microsatellite (106 bp, 108 bp and 112 bp). RESULTS There was a significant association between variants of the LDLR microsatellite and obesity, in the overall tested population, due to a contributing effect in females (χ2 = 12.3, P = 0.002), but not in males (χ2 = 0.3, P = 0.87). In females, individuals with the 106 bp allele were more likely to be lean, while individuals with the 112 bp and/or 108 bp alleles tended to be obese. CONCLUSIONS These results suggest that in females, LDLR may play a role in the development of obesity.