335 research outputs found

    As línguas na educação para o desenvolvimento sutentável no 1º CEB

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    Mestrado em Educação Pré-escolar e Ensino do 1º Ciclo do Ensino BásicoEste estudo, elaborado a partir de um projeto de intervenção com uma turma do 1.º CEB, teve como principais objetivos compreender o desenvolvimento da competência plurilingue através de uma Educação para o Desenvolvimento Sustentável (EDS), assim como analisar de que forma uma EDS desenvolve a SDLC (Sensibilização à Diversidade Linguística e Cultural). Desta forma, pretendemos dar resposta às seguintes questões de investigação: “Como desenvolver a Sensibilização à Diversidade Linguística através da dimensão ambiental do DS?” e “Qual o contributo de uma educação para o Desenvolvimento Sustentável para o desenvolvimento da competência plurilingue?”. Sendo este um estudo do tipo investigação-ação foram recolhidos dados através de notas de campo, das transcrições das vidogravações das sessões realizadas, de produções dos alunos e dos inquéritos por questionário inicial e final realizados à turma. Na análise de dados, a técnica privilegiada foi a análise de conteúdo. Assim, a análise de dados permitiu concluir que os alunos desenvolveram consciência do seu papel enquanto cidadãos, no que diz respeito à promoção e respeito pela diversidade linguistica, cultural e ambiental. Tudo isto fez com que tomassem consciência da importância do seu papel para a criação de um mundo melhor. Com este relatório podemos também concluir que através da educação em e pelas línguas, é possível contribuir para a compreensão e para uma Educação para o DS. E que estas duas temáticas podem ser abordadas transversal e articuladamente, contribuindo assim, desde cedo, para a construção de um futuro sustentável.This study, drawn from an intervention project with a 1st grade class, had as main objective to understand the development of plurilingual competence through Education for Sustainable Development (SD), as well as to analyze how SD influences the Awareness of Linguistic and Cultural Diversity. Thus, we intend to answer the following research questions: "How to develop awareness of linguistic diversity through the environmental dimension of the SD?" and "What is the contribution of education for Sustainable Development for the development of plurilingual competence?". Since this is na action research study, data were collected through field notes, transcripts of recordings from the sessions, materials produced by the students and the initial and final questionnaires. In data analysis, the preferred technique was content analysis. Hence, data analysis concluded that the students developed awareness of their role as citizens, with regard to the promotion and respect for linguistic, cultural and environmental diversity. All this meant that they better understood the importance of their role in creating a better world. With this report we can also conclude that through (language) education, you can contribute to the understanding and the Education for SD and that these two issues can be addressed in an articulated way, thus contributing to creating a sustainable future

    DIRETRIZES DA AMERICAN HEART ASSOCIATION PARA RESSUSCITAÇÃO CARDIOPULMONAR: CONHECIMENTO DE SOCORRISTAS

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    Objetivo: descrever o conhecimento dos profissionais socorristas sobre o protocolo da American Heart Association para ressuscitação cardiopulmonar. Método: estudo descritivo, com abordagem quantitativa, realizado com 40 socorristas de um Serviço de Atendimento Móvel de Urgência. Os dados foram coletados por meio de entrevista estruturada, utilizando-se um formulário construído com base nas recomendações da American Heart Association para ressuscitação cardiopulmonar. Resultados: 70% dos entrevistados conhecem a sequência das manobras de ressuscitação cardíaca, 40% não conhecem a frequência e profundidade das compressões torácicas, 55% não sabem a técnica de identificação de parada cardiorrespiratória e 52,5% não sabem o número de ventilações a serem aplicadas durante um atendimento ao paciente em parada cardíaca com via aérea avançada. Conclusão: o conhecimento dos socorristas, a despeito das novas diretrizes da American Heart Association para ressuscitação cardiopulmonar, não está atualizado conforme preconiza a entidade, demonstrando, assim, que essas diretrizes ainda não foram implantadas na prática. Descritores: American Heart Association. Parada cardíaca. Reanimação cardiopulmonar. Conhecimento

    Bilateral compensatory postural adjustments to a unilateral perturbation in subjects with chronic ankle instability

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    To evaluate the magnitude of bilateral compensatory postural adjustments in response to a unilateral sudden inversion perturbation in subjects with chronic ankle instability. Methods: 24 athletes with chronic ankle instability (14 with functional ankle instability, 10 with mechanical ankle instability) and twenty controls participated in this study. The bilateral electromyography of ankle muscles was collected during a unilateral sudden ankle inversion to assess the magnitude of subcortical and voluntary compensatory postural adjustments in both the perturbed and the contralateral limb (support limb). In the support position, compared to the control group, the group with functional ankle instability presented decreased compensatory postural adjustments of the tibialis anterior in both the injured and the uninjured limbs in the support position and of the soleus in the uninjured limb. In the side of the perturbation, participants with functional ankle instability presented decreased soleus compensatory postural adjustments in the uninjured limb when compared to the control group. Increased values of soleus and peroneal brevis compensatory postural adjustments were observed in the group with mechanical instability when compared to the control group and to the group with functional ankle instability. Subjects with functional ankle instability present bilateral impairment of compensatory postural adjustments of the tibialis anterior in a support position and of the soleus of the uninjured limb regardless of the position. Subjects with mechanical instability present bilateral increase of these adjustments in the peroneal brevis regardless of the position and in the soleus muscle in the side of the perturbation.info:eu-repo/semantics/publishedVersio

    Potential predation and fecundity of Amblyseius aerialis fed two-spotted spider mite

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    The mites of the Phytoseiidae family stand out for the biological control of pest mites. The species Amblyseius aerialis (Muma, 1955) is a generalist mite, which can contribute to the natural regulation of pest mites. The objective of this study was to evaluate the potential for predation and fecundity of A. aerialis on the different phases of Tetranychus urticae (Koch, 1836) (Acari: Tetranychidae). A female of A. aerialis was confined on dish (3.0 cm in diameter) of jack bean leaves, Canavalia ensiformis (L.) DC. The discs were left in petri dish with water. Each T. urticae phase was offered individually to A. aerialis at densities: 2, 5, 10, 15, 20 and 30 mites / arena. The number of prey consumed and eggs laid by A. aerialis were evaluated every 24 hours for seven days, with removal of laid eggs by phytoseiid and dead prey and replacement of prey in the initial amount. The data were submitted to analysis of variance and the means were compared by Tukey test, applying the factorial (4x6). It was observed that with the increase of the density of T. urticae offered there was an increase in the predation of A. aerialis. When offered the nymph and adult the average number of eggs per day was higher, differing from egg and larva. Thus, A. aerialis can be a biological control agent of the T. urticae, reducing the population of the pest and maintaining its fecundity in all phases and densities offered.The mites of the Phytoseiidae family stand out for the biological control of pest mites. The species Amblyseius aerialis (Muma, 1955) is a generalist mite, which can contribute to the natural regulation of pest mites. The objective of this study was to evaluate the potential for predation and fecundity of A. aerialis on the different phases of Tetranychus urticae (Koch, 1836) (Acari: Tetranychidae). A female of A. aerialis was confined on dish (3.0 cm in diameter) of jack bean leaves, Canavalia ensiformis (L.) DC. The discs were left in petri dish with water. Each T. urticae phase was offered individually to A. aerialis at densities: 2, 5, 10, 15, 20 and 30 mites / arena. The number of prey consumed and eggs laid by A. aerialis were evaluated every 24 hours for seven days, with removal of laid eggs by phytoseiid and dead prey and replacement of prey in the initial amount. The data were submitted to analysis of variance and the means were compared by Tukey test, applying the factorial (4x6). It was observed that with the increase of the density of T. urticae offered there was an increase in the predation of A. aerialis. When offered the nymph and adult the average number of eggs per day was higher, differing from egg and larva. Thus, A. aerialis can be a biological control agent of the T. urticae, reducing the population of the pest and maintaining its fecundity in all phases and densities offered

    THE TEACHING PROFESSIONALISM AND PEDAGOGICAL PRACTICE: REFLECTIONS ON BUSINESS ADMINISTRATION COURSES IN PUBLIC UNIVERSITIES

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    To analyze the constitution of the teaching professionalism and the contribution of the teachers' pedagogical practice in the development of competences and abilities of the students of the Administration course of the Public Universities of Piauí. The instrument is a questionnaire developed in the Google Docs platform, with a five-point Likert scale and a semi-structured interview script. Descriptive statistics were used for quantitative data and content analysis for qualitative data. Fifty-one professors from business administration courses at public universities in the state of Piauí participated. The results pointed out that teachers' professionalism is influenced by their established relationships, even before they enter the profession, and carries aspects of their biography, their social and psychological universe. They believe that their professionalism is related to the construction of competencies and the development of skills for their teaching activities, leading to the deduction that, by being aware of their own abilities and competencies, they know of the need to improve and/or develop them. With this, they carry out a more cautious and conscious teaching practice, contributing to an effective training of their students in order to contribute to the development of their skills and abilities

    Perfil do professor de sociologia do ensino médio da rede pública estadual de Picos-PI / Profile of the professor of sociology of high school of the state public network of Picos-PI

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    O presente artigo faz parte de um projeto de pesquisa que busca dar continuidade aos estudos realizados no doutorado na Universidade Federal do Rio Grande do Norte (2012). O fato de o professor de Sociologia do Ensino Médio ser um objeto pouco estudado faz oportuna a realização de mais pesquisas. O objetivo geral da pesquisa é conhecer o processo histórico relativo à institucionalização da Sociologia no Ensino Médio, o saber-fazer e as condições de trabalho dos professores de Sociologia das escolas públicas estaduais da cidade de Picos-PI. Realizamos, nos meses de maio e junho de 2013, visitas à 9ª Gerência Regional de Educação de Picos – PI às escolas e aplicamos um questionário junto aos professores de Sociologia que aceitaram o convite para fazerem parte da pesquisa. O trabalho de campo foi realizado pela pesquisadora e uma aluna bolsista do curso de Pedagogia. O resultado do questionário possibilitou-nos traçar o perfil de tais professores, apresentando novas perspectivas de análise na área do ensino da Sociologia na educação básica. 

    Neuronal deletion of GSK3beta increases microtubule speed in the growth cone and enhances axon regeneration via CRMP-2 and independently of MAP1B and CLASP2

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    BACKGROUND: In the adult central nervous system, axonal regeneration is abortive. Regulators of microtubule dynamics have emerged as attractive targets to promote axonal growth following injury as microtubule organization is pivotal for growth cone formation. In this study, we used conditioned neurons with high regenerative capacity to further dissect cytoskeletal mechanisms that might be involved in the gain of intrinsic axon growth capacity. RESULTS: Following a phospho-site broad signaling pathway screen, we found that in conditioned neurons with high regenerative capacity, decreased glycogen synthase kinase 3β (GSK3β) activity and increased microtubule growth speed in the growth cone were present. To investigate the importance of GSK3β regulation during axonal regeneration in vivo, we used three genetic mouse models with high, intermediate or no GSK3β activity in neurons. Following spinal cord injury, reduced GSK3β levels or complete neuronal deletion of GSK3β led to increased growth cone microtubule growth speed and promoted axon regeneration. While several microtubule-interacting proteins are GSK3β substrates, phospho-mimetic collapsin response mediator protein 2 (T/D-CRMP-2) was sufficient to decrease microtubule growth speed and neurite outgrowth of conditioned neurons and of GSK3β-depleted neurons, prevailing over the effect of decreased levels of phosphorylated microtubule-associated protein 1B (MAP1B) and through a mechanism unrelated to decreased levels of phosphorylated cytoplasmic linker associated protein 2 (CLASP2). In addition, phospho-resistant T/A-CRMP-2 counteracted the inhibitory myelin effect on neurite growth, further supporting the GSK3β-CRMP-2 relevance during axon regeneration. CONCLUSIONS: Our work shows that increased microtubule growth speed in the growth cone is present in conditions of increased axonal growth, and is achieved following inactivation of the GSK3β-CRMP-2 pathway, enhancing axon regeneration through the glial scar. In this context, our results support that a precise control of microtubule dynamics, specifically in the growth cone, is required to optimize axon regrowth

    Study of reproductive toxicity of Combretum leprosum Mart and Eicher in female Wistar rats

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    Most plants culturally used in Brazil for medicine do not have pre-clinical studies of reproductive toxicity, therefore risks of using such products on the reproductive system are unknown. The aim of the study was to evaluate possible reproductive toxicity of ethanolic extract of Combretum leprosum Mart and Eicher (EECL) in female Wistar rats. The animals, weighing between 180 to 250 g, were maintained in controlled environmental conditions of temperature, humidity, light/dark cycle of 12/12 h, water ad libitum and fed with commercial diet for rats. To verify the estrogenic activity of EECL, four groups of ovariectomized rats were used: saline + corn oil; saline + estradiol; EECL (500 mg/kg) + corn oil; EECL (500 mg/kg) + estradiol. To study the reproductive toxicity during the fecundation and implantation phases of the embryos and also during the organogenesis phase, two groups were used for each experiment, saline and EECL (500 mg/Kg). No estrogenic or anti-estrogenic activities were observed in the EECL. The ingestion of EECL did not cause modification in the number of implantation sites, which indicates a lack of toxicity during this phase. The EECL administered orally in the dose of 500 mg/kg did not produce adverse effects on the reproductive system of the female rats.Keywords: Estrogenic activity, organogenesis, teratogensAfrican Journal of Biotechnology Vol. 12(16), pp. 2105-210

    Promotion of the quality of life of workers in a higher education institution: a scope review

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    The present study aimed to map the evidence to provide an overview of actions implemented/executed and scales used in public higher education institutions to promote worker health. A scoping review based on the PCC (Population, Concept, and Context) mnemonic was conducted in PubMed, CINAHL, Scopus and Virtual Health Library (VHL). Population included workers from a higher education institution, the concept referred to studies focusing on the assessment of quality of life and health promotion actions and the context to higher education institutions. Electronic searches were held on December 2019. A qualitative synthesis of the data extracted from included studies (i.e. author, year, study design, sample, country, aims, action implemented/performed, thematic focus, evaluation) was performed. Electronic searches retrieved 3,330 articles that were screened by tittles and abstracts. Of these, 34 studies were fully appraised, of which four reported that actions implemented/executed related to sedentariness, posture and stress. The studies show 49 scales were identified to measuring at least one quality of life item. Through this scoping review the available evidence to provide an overview of actions implemented/executed and scales used in public higher education institutions to promote worker health. Future studies should consider more rigorous designs and objective measures to measure the quality of life of these professionals, and develop target interventions based on factors associated with the work. It is also necessary to evaluate whether the strategies work
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