Uso de artigos científicos em uma disciplina de Físico-Química

This paper describes the use of primary chemistry literature in a fifth-semester physical chemistry course for undergraduate chemistry students. The main goal is to expose students to the primary literature of physical chemistry, demonstrating how they can benefit from using it. The assignment addresses issues in chemical education such as scientific writing, relating lecture material to the real world, and conducting literature searches. The student evaluation of this assignment, consisting of two surveys and one focus group, showed its usefulness. The details of the evaluation instruments and their results are provided. Out of 45 students enrolled in the course, 30 (67%) students completed the assignment.

Individual Differences in Music Reward Experiences

Music is one of the most pleasant human experiences, even though it has no direct biological advantage. However little is known about individual differences in how people experience reward in music-related activities. The goal of the present study was to describe the main facets of music experience that could explain the variance observed in how people experience reward associated with music. To this end we developed the Barcelona Music Reward Questionnaire (BMRQ), which was administrated to three large samples. Our results showed that the musical reward experience can be decomposed into five reliable factors: Musical Seeking, Emotion Evocation, Mood Regulation, Social Reward, and Sensory-Motor. These factors were correlated with socio-demographic factors and measures of general sensitivity to reward and hedonic experience. We propose that the five-factor structure of musical reward experience might be very relevant in the study of psychological and neural bases of emotion and pleasure associated to music.

De disciplina morali veterum Hyperboreorum

Invocatio D.D.

De disciplina morali veterum Hyperboreorum

Invocatio: D.D.

Montagem de uma disciplina experimental: contribuição para a química geral

The purpose of this paper is to present a classification criterion for general chemistry experiments departing from a survey of 35 years of the experimental general chemistry discipline at the Chemistry Institute - UNICAMP. It is shown that by considering the most remarkable characteristics of an experiment and classifying it under Conceptual, Fundamental, Methodological or Quantitative criterion, teachers could better develop the discipline plan and prevent a subject superposition. Taking into account the system Fe3+/SCN- , the article also exemplify how is possible to modify an experimental approach and to conceive other procedures with different didactic purposes.

Abordagem teórico-experimental da teoria do campo cristalino na disciplina de síntese inorgânica

We describe herein the synthesis and characterization of the complexes KNiF3, [Ni(en)3]I2, [Ni(en)3]Cl2, [Ni(acac)2(H2O)2], [Ni(en)2(H2O)2]Cl2 and [Ni(NH3)6](BF4)2 (en = ethylenediamine, acac- = acetylacetonate) performed in the inorganic synthesis major course at the Chemistry Institute of UFRGS (Universidade Federal do Rio Grande do Sul). The compounds were characterized by infrared and electronic spectroscopy and the electrolytic conductivity was measured. The parameters 10Dq and B were obtained from the electronic spectra and the nefelauxetic and spectrochemical series were determined. The obtained spectrochemical series was F- < acac- < NH3 < en and the nefeulaxetic series was en < NH3 < acac- < F-.

Resolução do ibuprofeno: um projeto para disciplina de química orgânica experimental

A practical and didactic sequence of experiments was proposed to illustrate the stereochemistry concept, optically active compounds, resolution of racemates, and use of the NMR technique, including 2D-COSY for identification of organic compounds, on a laboratory course for undergraduate students. The sequence was: extractions of racemic ibuprofen and chiral naproxen from commercial tablets; syntheses of diastereoisomeric amides reacting chiral (S)-(-)-α-methylbenzylamine with (±)-ibuprofen; separation and determination of absolute configuration of amides by ¹H NMR spectroscopy and GC analysis, and hydrolysis of amides to obtain (+)- and (-)-ibuprofen.

Preparação de derivados do lapachol em meio ácido e em meio básico: uma proposta de experimentos para a disciplina de Química Orgânica Experimental

In this educational paper we describe the extraction of lapachol from its natural source according to acid-base concepts in organic chemistry and the use of its derivatives β-lapachone and hydroxy-hydrolapachol to exemplify intramolecular cyclization, carbocation stability, Michael addition reaction and chromatography. The experiments were performed during three different undergraduate organic chemistry laboratory classes using low cost material, while avoiding color reagents for TLC visualization, as well as small-scale column chromatography to isolate the mixture of lapachol and β-lapachone.

O tempo de pega em gelatinas comerciais: uma experiência da disciplina de quimiometria para estudantes de graduação em Química

The aim of this paper is to describe a chemometrics experiment for undergraduate chemistry students using basic concepts of experimental design to determine setting-time of commercial gelatins.

Metodologia de ensino jigsaw em disciplina de química medicinal

In this paper, we describe an educational experience involving the use of the jigsaw method on the Medicinal Chemistry course at the University of São Paulo, Brazil. The goal of this proposal was to investigate acceptance and contributions of the method to undergraduate chemistry teaching. Feedback on the jigsaw method collected from the focus groups and questionnaires showed that participants generally acknowledged the advantages of the jigsaw method in helping them learn the Medicinal Chemistry subject. Suggestions for improving the jigsaw method were also received from participants.

A teoria de pearson para a disciplina de química orgânica: um exercício prático e teórico aplicado em sala de aula

We report a didactic experience in teaching Pearson's theory (HSAB) to graduate students in organic chemistry. This approach was based on teaching students how to use computer programs to calculate frontier orbitals (HOMO-LUMO). The suggested level of calculation was a semi-empiric PM3, proving to be efficient for obtaining robust and fast numerical results that can be performed easily in the classroom. We described a practical computational exercise and asked students to compare these numerical data with qualitative analysis using valence bond theory. A comprehensive solution of this exercise is presented, aiming to support teachers in their lessons.

BLOGS NO ENSINO DE QUÍMICA: ANÁLISE DE COMENTÁRIOS PUBLICADOS EM DISCIPLINA DE COMUNICAÇÃO CIENTÍFICA

Blogs and other technology tools are commonly used in our society. Although we are familiar with the use of technology for social interaction, its application in the classroom environment is still not fully appreciated by the teaching community as a useful learning tool. This paper sheds light on this use by presenting the analysis of the comments posted on a blog used by undergraduate chemistry students for a scientific communication undergraduate course. On the course, students used the blog to ask questions and discuss assignments. All the comments were monitored by the professor and her teaching assistant, who also posted their comments. We analyzed the content of these comments using the model proposed by Henri and adapted by McKenzie and Murphy. The results show a predominance of administrative comments, followed by course content comments. The findings also indicated that this tool complements classroom discussions, supports the participation of students who would otherwise not take part, and allows a continuous learning process for all the students. We concluded that the use of blogs improved the classroom experience and supported the instructional classroom activities.

Instalação da disciplina de Atenção Básica em Saúde na Faculdade de Medicina da Universidade de São Paulo (2003-2006)

INTRODUÇÃO: A disciplina de Atenção Básica em Saúde constitui um programa interdepartamental na Faculdade de Medicina da USP, apoiada por três Unidades Básicas de Saúde com o Programa de Saúde da Família. Este estudo avalia sua instalação. MÉTODOS: Questionários de avaliação de ambiente, Delphi e de auto-avaliação com escala de capacidades. Resultados:Cento e sessenta e dois primeiranistas em 2004 (93%), 142 em 2005 (81%) e 129 terceiranistas (74%) responderam. Orientar a utilização dos serviços de saúde, visitar famílias, promover saúde, oferecer suporte e identificar situações de risco, entre primeiranistas, e "consulta médica com adultos" e "reunião de grupo com pacientes", com alunos do terceiro, alcançaram o nível "fiz o procedimento com ajuda de alguém". Capacidades adquiridas: realidade social e de saúde, trabalho do agente comunitário, entendimento do Programa de Saúde da Família, Atenção Primária e Sistema de Saúde. As percepções de ambiente diferiram entre os locais ou equipes. DISCUSSÃO: As avaliações sugerem razoável conhecimento e capacitação para o trabalho dos agentes comunitários. O vocabulário dos alunos incorporou SUS, PSF e Atenção Básica. CONCLUSÃO: A disciplina alcançou avaliação positiva no seguimento de pessoas, famílias e comunidades.

Implantação de uma nova disciplina à luz das diretrizes curriculares no curso de graduação em medicina da Universidade do Estado do Rio de Janeiro

Este estudo teve por objetivo realizar, com base numa pesquisa qualiquantitativa, a primeira análise do processo de implantação da Disciplina de Medicina Integral I (DMI I): "Conceitos e Práticas em Medicina: Introdução à Promoção e à Educação em Saúde". Elaborada com base nas Diretrizes Curriculares que regem o ensino médico, essa disciplina foi integrada à grade curricular da Faculdade de Ciências Médicas da Universidade do Estado do Rio de Janeiro em 2002. O estudo foi sistematizado a partir de um corte transversal no segundo semestre letivo de 2004 com a participação de 75 estudantes (80% do total de estudantes do primeiro ano de medicina). Os dados foram coletados em dois momentos do curso: inicial (pré-avaliação) e final (pós-avaliação). As questões abordadas nas avaliações consideraram as seguintes temáticas, todas presentes no curso: a crise atual da medicina e estratégias para sua superação; o papel do médico e os fatores influentes no processo de saúde-adoecimento. A média da pontuação na pré-avaliação foi de 3,7 e, na realizada ao final do curso, de 7,8. Na aplicação do teste "t-Student" para dados pareados, encontrou-se o índice p < 0,05. A análise comparativa dos dados pré e pós possibilita averiguar que o conteúdo programático trabalhado na DMI I foi apreendido pelos estudantes em níveis satisfatórios, sinalizando indicadores adequados para a análise de uma nova disciplina no processo de reformulação curricular.