Levando química a praça: reações ao vivo e a cores. Propostas metodológicas para o ensino de química

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Charting a politics of hope through representation

Editor’s summary: Phillip Wadick comments ‘I have been forced to insert my body into the frame as I contemplate what facilitates safe bodies’.  His various representational forms support a position towards workplace health and safety research that offers alternatives to dominant structuralist and positivist paradigms that tend to objectify and commodify the body. His ‘wanderings and wonderings’ occur in a field where workers’ are so sceptical of the about ‘visibility politics’ around safety they expose themselves to bodily risks.  The disjunction between the ‘theoretical and impersonal bodies’ of dominant technical and medical discourses of workplace safety and the human encounters and social interactions affecting ’individual and personal bodies’ led him to disrupt ‘old certainties’ and fixed oppositions in favour of poststructuralist thinking and alternative forms of representing knowledge. Hope emerged where workers ‘found energy for change in the space between the arbitrary and unhelpful oppositions’.</h1

Charting a politics of hope through representation

Editor’s summary: Phillip Wadick comments ‘I have been forced to insert my body into the frame as I contemplate what facilitates safe bodies’.  His various representational forms support a position towards workplace health and safety research that offers alternatives to dominant structuralist and positivist paradigms that tend to objectify and commodify the body. His ‘wanderings and wonderings’ occur in a field where workers’ are so sceptical of the about ‘visibility politics’ around safety they expose themselves to bodily risks.  The disjunction between the ‘theoretical and impersonal bodies’ of dominant technical and medical discourses of workplace safety and the human encounters and social interactions affecting ’individual and personal bodies’ led him to disrupt ‘old certainties’ and fixed oppositions in favour of poststructuralist thinking and alternative forms of representing knowledge. Hope emerged where workers ‘found energy for change in the space between the arbitrary and unhelpful oppositions’

Constructing the safe workplace: the dance of subjectivity, power and agency in the performance of OHS

Previous research has demonstrated that working safely is often problematic and is subject to many competing pressures that workers must navigate. People want to be safe at work but they often prioritise other workplace imperatives over their own health and safety. The research described in this thesis focused on the relationships between power, subjectivity and agency in learning to work safely. The purpose of this study was to understand how workers learn to become effective OHS subjects by examining how they come to constitute themselves in relation to OHS. To achieve this, an interpretive, hermeneutic framework within poststructural theories of subject formation was used as a basis for the research methodology. It is influenced by Foucauldian and poststructural understandings of language, meaning, subjectivity, discourse and truth, and power/knowledge. Qualitative ethnographic methods were used for data collection such as interviews, participant observations, open ended questionnaires, field notes, document analysis and researcher reflections. A large portion of the data was produced through people‟s stories as they tried to make sense of their OHS experiences. Data analysis was informed by the poststructural concept of agency in which people are not freely agentic but think and act within the range of choices offered by particular discourses. The language used in speaking OHS into existence is couched in a vocabulary of compliance and conflict and workers often situate themselves within oppositional binaries. It became clear from the data that OHS subjectivity is constituted within competing pressures, and that individual agency is constrained by discourses that often privilege costs and production over worker health and safety, which are deeply embedded in the power relations at work. Workers often do not speak up about their health and safety concerns because of these power relations that threaten them with perceived negative consequences. A post modern emergent methodology enabled the conceptualising of new subjectivities and new knowledges, including alternative modes of representation such as poetry, creative writing, drama and cartoon. A politics of xii hope was developed by finding examples of where workers had disrupted historically produced binaries and found energy for change in the space between the arbitrary and unhelpful oppositions. It was suggested that learning to constitute proactive agentic OHS subjectivities is more likely in workplaces that ensure workers have adequate OHS knowledge and skills, provide ample opportunity to use this knowledge/skills, and kindle their desire to do so. Success is enhanced in workplaces where all the actors and stakeholders are acutely and reflexively aware of how power operates in all its micro locations

Constructing the safe workplace: the dance of subjectivity, power and agency in the performance of OHS

Previous research has demonstrated that working safely is often problematic and is subject to many competing pressures that workers must navigate. People want to be safe at work but they often prioritise other workplace imperatives over their own health and safety. The research described in this thesis focused on the relationships between power, subjectivity and agency in learning to work safely. The purpose of this study was to understand how workers learn to become effective OHS subjects by examining how they come to constitute themselves in relation to OHS. To achieve this, an interpretive, hermeneutic framework within poststructural theories of subject formation was used as a basis for the research methodology. It is influenced by Foucauldian and poststructural understandings of language, meaning, subjectivity, discourse and truth, and power/knowledge. Qualitative ethnographic methods were used for data collection such as interviews, participant observations, open ended questionnaires, field notes, document analysis and researcher reflections. A large portion of the data was produced through people‟s stories as they tried to make sense of their OHS experiences. Data analysis was informed by the poststructural concept of agency in which people are not freely agentic but think and act within the range of choices offered by particular discourses. The language used in speaking OHS into existence is couched in a vocabulary of compliance and conflict and workers often situate themselves within oppositional binaries. It became clear from the data that OHS subjectivity is constituted within competing pressures, and that individual agency is constrained by discourses that often privilege costs and production over worker health and safety, which are deeply embedded in the power relations at work. Workers often do not speak up about their health and safety concerns because of these power relations that threaten them with perceived negative consequences. A post modern emergent methodology enabled the conceptualising of new subjectivities and new knowledges, including alternative modes of representation such as poetry, creative writing, drama and cartoon. A politics of xii hope was developed by finding examples of where workers had disrupted historically produced binaries and found energy for change in the space between the arbitrary and unhelpful oppositions. It was suggested that learning to constitute proactive agentic OHS subjectivities is more likely in workplaces that ensure workers have adequate OHS knowledge and skills, provide ample opportunity to use this knowledge/skills, and kindle their desire to do so. Success is enhanced in workplaces where all the actors and stakeholders are acutely and reflexively aware of how power operates in all its micro locations

Rendimento e teor de metil-eugenol em óleo essencial das folhas de Ocimum micranthum Willd. em função de secagem em leito fixo.

Neste trabalho foram realizados ensaios experimentais em um secador de leito fixo com convecção forçada do ar com o objetivo de verificar a influência das variáveis do processo de secagem

1B122 O desafio do ensino sobre a fotossíntese na Educação de Jovens e Adultos

A fotossíntese é um processo pelo qual as plantas sintetizam seu próprio alimento e do qual dependem todos os seres heterótrofos do planeta. Por ser um assunto complexo, envolvendo conteúdo da Biologia, Física e Química, o ensino deste tema é um desafio para professores e estudantes. A pesquisa investigou o nível de conhecimento prévio de 17 estudantes do nível fundamental acerca do tema “Fotossíntese”, e uma intervenção com o uso de jogo didático. Os estudantes têm faixa etária de 25-45 anos e estudam na Educação de Jovens e Adultos (EJA) no turno noturno de uma escola pública no município de Benjamin Constant, Brasil. Os dados coletados mostram o profundo nível de desconhecimento dos estudantes sobre o tema “Fotossíntese”. Mesmo após a intervenção, a dificuldade de entendimento do tema persistiu, o que pode ser consequência de anos de ensino deficitário e evasão escolar