12 research outputs found
O papel do ensino de geografia no fortalecimento da educação do campo e na (re)construção do território camponês local
No full textTese (doutorado)—Universidade de Brasília, Instituto de Ciências Humanas, Departamento de Geografia, Programa de Pós-Graduação em Geografia, 2018.Esta tese se propõe a analisar o papel do Ensino de Geografia desenvolvido na Escola Família Agrícola de Natalândia – EFAN, Minas Gerais, no fortalecimento da Educação do Campo e na (re)construção do território camponês local. Nossa suposição é a de que o Ensino de Geografia contribui para a formação dos sujeitos e auxilia no fortalecimento da sua identidade e do seu território. Assim, esta investigação, de base qualitativa, foi realizada por meio de: análise documental; entrevista semiestruturada com o monitor da disciplina de Geografia, o coordenador pedagógico, a supervisora do Ensino Médio e duas lideranças da comunidade; roda de conversa com os alunos do 3º ano do Ensino Médio, e construção do diário de campo. Além disso, participamos, em outros momentos, de eventos e espaços de formação durante dois anos de vivências com os sujeitos locais. Na investigação, abordamos os seguintes temas/autores: questão agrária brasileira, em Alentejano (2014) e Oliveira (2001, 2012); o campesinato e o conceito de Camponês, em Fernandes (2009, 2013); Território, em Haesbaert (2016); o movimento da Educação do Campo, a partir de Caldart e Molina (2011), Caldart et al (2012), Caldart (2015), Freitas (2010) e Molina (2012); e a construção de um arcabouço teórico sobre o Ensino de Geografia em Escolas do Campo, a partir de Callai (2001, 2005), Cavalcanti (2010, 2012), Castellar (2015) e Leite (2002, 2012). Os resultados evidenciaram como se deu a apropriação e construção do território camponês local e a materialização da EFAN enquanto um território educativo. Além disso, ficou evidente, também, a importância do Ensino de Geografia desenvolvido na escola para a formação dos sujeitos, o resgate e valorização da sua identidade e o fortalecimento do território camponês local, embora pudesse ser potencializada caso não houvesse negligência em relação a alguns dos conceitos e conteúdos fundamentais da ciência geográfica. Por fim, em conjunto com a equipe pedagógica, foram definidos os conteúdos fundamentais para cada ano de formação do Ensino Médio, considerados necessários para uma aproximação da Geografia com a Educação do Campo, especificamente para o contexto da EFAN. Concluímos que o Ensino de Geografia, quando entendido enquanto uma construção realizada em conjunto com os sujeitos, através de processos que prezem pela autonomia, empoderamento e valorização das especificidades e dos sujeitos locais, tem papel fundamental no fortalecimento e na construção da Educação do Campo, e contribui, principalmente, para a materialização de processos que valorizem os tempos e espaços do campo e dos sujeitos camponeses. Na Geografia, em especial, essa significação potencializa o trabalho com seus temas e conteúdos; por um lado, auxilia no processo de fortalecimento da cultura e da identidade do camponês, e, por outro, na reconstrução e/ou ressignificação dos conhecimentos geográficos a partir da realidade dos sujeitos, algo tão caro à ciência geográfica.This thesis proposes to analyze the role of Geography Teaching as it is developed at the Escola Família Agrícola de Natalândia - EFAN, Minas Gerais, in the strengthening of the Educação do Campo and in the (re)construction of the local peasant territory. We believe that Geography Teaching contributes to the subjects‟ formation and enhances the strengthening of their identity and territory. This qualitative research was carried out through documentary analysis; semi-structured interviews with the Geography Monitor, the pedagogical coordinator, the High School supervisor and two community leaders; conversation with students of EFAN‟s High School and field diary. In addition, the author has participated in events and formation spaces during the two years of experiences with local subjects. The following themes and authors were approached: the Brazilian agrarian question, in Alentejano (2014) and Oliveira (2001; 2012); the peasantry and the Peasant concept, in Fernandes (2009, 2013); Territory in Haesbaert (2016); the Educação do Campo movement, in Caldart and Molina (2011), Caldart et al (2012), Caldart (2015), Freitas (2010) and Molina (2012); the construction of a theoretical framework on the Teaching of Geography in Escolas do Campo, from Callai (2001, 2005), Cavalcanti (2010, 2012), Castellar (2015) and Leite (2002, 2012). The results showed how the appropriation and construction of the local peasant territory and the materialization of the EFAN as an educational territory took place. In addition, the importance of Geography Teaching for the subjects‟ formation, the rescue and valorization of their identity and the strengthening of the local peasant territory was made evident, although it could be enhanced if there were no negligence of some fundamental concepts and contents of geographic science. Finally, we propose basic contents for each year of High School education specifically for the EFAN context, which were developed with the school‟s pedagogical team. The conclusion is that Geography Teaching, when understood as a construction carried out in conjunction with the subjects, through processes that cherish autonomy, empowerment and valorization of local specificities and subjects, plays a fundamental role in the strengthening and construction of the Educação do Campo, and contributes to the materialization of processes that value the peasant subjects. For the geographic science, on one hand, this understanding helps in the process of strengthening the culture and the identity of the peasant, and, on the other hand, it allows the reconstruction and re-signification of the geographical knowledge from the reality of the subjects.Instituto de Ciências Humanas (ICH)Departamento de Geografia (ICH GEA)Programa de Pós-Graduação em Geografi
ANALYSIS OF PRODUCT PLACEMENT AS A GLOBAL MARKETING STRATEGY OF SUBWAY SANDWICH IN DRAMA MY ROOMMATE IS GUMIHO
No full textSubway is a fast food restaurant from America that uses a franchise concept. This study aims to determine the Product Placement used by Subway Sandwich as a global marketing strategy in the Korean drama My Roommate is Gumiho. In this study, the author uses a qualitative method in social phenomena by collecting data from news, journals, articles, dramas, and books to find evidence that follows product placement and global marketing strategies. However, this study focuses on analyzing Korean dramas and news articles. The findings of this study will produce a division of product placement dimensions contained in the drama My Roommate is Gumiho. The result of this study is product placement carried out by Subway in the parts contained in the drama My Roommate, which means international audiences can increasingly recognize Subway products
Implementación de la metodología del plan de negocios en mipyme “Zona Green”
No full textThrough the present analysis in the Micro-enterprise called "Green Zone" the methods for the implementation of the business plan were analyzed as: the mission and the vision giving a greater purpose of the business and its administration. Likewise, other analyzes are applied to detect which are the current clients to improve the organization and to measure the result in the business. A financial analysis was also established to discover how this business works and offers an improvement in a way that facilitates the business process. Applying a SWOT analysis were discovered the several of which one of the most prominent were the strengths of the companies stands out the location of the business. All previously confirmed information has been cited in order to grant credit to the author and support the credibility of the document, whose purpose is to improve the business.A través del presente análisis en la Micro empresa llamada “Zona Green” se analizaron diferentes aspectos para la implementación del plan de negocios tales como: misión y visión, dando a conocer el principal propósito del negocio y su administración. Asimismo, se aplicaron otros análisis para detectar cuales son los actuales consumidores para mejorar la organización y medir los resultado en el negocio. También se estableció un análisis financiero para descubrir la manera en que trabaja este negocio y ofrecer una mejora de manera que facilite el proceso del negocio. Aplicando un análisis FODA se descubrieron varios aspectos de los cuales uno de los más destacados fueron las Fortalezas de las cuales sobresale la ubicación del negocio. Se ha citado toda la información previamente confirmada con el fin de otorgar crédito al autor y apoyando la credibilidad del documento, cuyo fin es la mejora del negocio
Optimum neural tuning curves for information efficiency with rate coding and finite-time window
No full textAn important question for neural encoding is what kind of neural systems can convey more information with less energy within a finite time coding window. This paper first proposes a finite-time neural encoding system, where the neurons in the system respond to a stimulus by a sequence of spikes that is assumed to be Poisson process and the external stimuli obey normal distribution. A method for calculating the mutual information of the finite-time neural encoding system is proposed and the definition of information efficiency is introduced. The values of the mutual information and the information efficiency obtained by using Logistic function are compared with those obtained by using other functions and it is found that Logistic function is the best one. It is further found that the parameter representing the steepness of the Logistic function has close relationship with full entropy, and that the parameter representing the translation of the function associates with the energy consumption and noise entropy tightly. The optimum parameter combinations for Logistic function to maximize the information efficiency are calculated when the stimuli and the properties of the encoding system are varied respectively. Some explanations for the results are given. The model and the method we proposed could be useful to study neural encoding system, and the optimum neural tuning curves obtained in this paper might exhibit some characteristics of a real neural system
Depressive symptoms and associated psychosocial factors among adolescent survivors 30 months after 2008 Wenchuan earthquake: A follow-up study
No full textAbstractPurpose: This study longitudinally investigated the changes of depressive symptoms among adolescent survivors over two years and a half after the 2008 Wenchuan earthquake in China, as well as the predictive effects of demographic characteristics, earthquake exposure, negative life events, social support and dispositional resilience on the risk of depressive symptoms at two time points after the earthquake.Methods: Participants were 1573 adolescent survivors (720 males and 853 females, mean age at initial survey =15 ± 1.26), whose depressive symptoms were assessed at 6 months (T6m) and 30 months (T30m) post-earthquake. Data on demographics, earthquake exposure and dispositional resilience were collected at T6m. Negative life events and social support were measured at T6m and 24 months (T24m) post-earthquake.Results: The prevalence rates of probable depression, 27.5% at T6m and 27.2% at T30m, maintained relatively stable over time. Female gender was related with higher risk of depressive symptoms at both T6m and T30m, while being only-child could only predict higher risk of depressive symptoms at T30m. Negative life events and social support at T6m, as well as earthquake exposure, were concurrently associated with increased risk of depressive symptoms at T6m, but not associated with the risk of depressive symptoms at T30m, while negative life events and social support at T24m could predict depressive symptoms at T30m, all of which suggested that these variables may have strong but short-term effect on adolescents’ depressive symptoms post-earthquake. Besides, dispositional resilience was evidenced as a relatively stable negative predictor for depressive symptoms.Conclusions: These findings could inform mental health professionals regarding how to screen adolescent survivors at high risk for depression, so as to provide them with timely and appropriate mental health services based on the identified risk and protective factors for depressive symptoms
Age-related changes in brain structural covariance networks
No full textPrevious neuroimaging studies have suggested that cerebral changes over normal aging are not simply characterized by regional alterations, but rather by the reorganization of cortical connectivity patterns. The investigation of structural covariance networks (SCNs) using voxel-based morphometry is an advanced approach to examining the pattern of covariance in gray matter volumes among different regions of the human cortex. To date, how the organization of critical SCNs change during normal aging remains largely unknown. In this study, we used an SCN mapping approach to investigate eight large-scale networks in 240 healthy participants aged 18–89 years. These participants were subdivided into young (18–23 years), middle aged (30–58 years), and older (61–89 years) subjects. Eight seed regions were chosen from widely reported functional intrinsic connectivity networks. The voxels showing significant positive associations with these seed regions were used to describe the topological organization of an SCN. All of these networks exhibited non-linear patterns in their spatial extent that were associated with normal aging. These networks, except the primary motor network, had a distributed topology in young participants, a sharply localized topology in middle aged participants, and were relatively stable in older participants. The structural covariance derived using the primary motor cortex was limited to the ipsilateral motor regions in the young and older participants, but included contralateral homologous regions in the middle aged participants. In addition, there were significant between-group differences in the structural networks associated with language-related speech and semantics processing, executive control, and the default-mode network. Taken together, the results of this study demonstrate age-related changes in the topological organization of SCNs, and provide insights into normal aging of the human brain
Analysis of Genetic Variation and Diversity of Rice Stripe Virus Populations through High-throughput Sequencing
No full textPlant RNA viruses often generate diverse populations in their host plants through error-prone replication and recombination. Recent studies on the genetic diversity of plant RNA viruses in various host plants have provided valuable information about RNA virus evolution and emergence of new diseases caused by RNA viruses. We analyzed and compared the genetic diversity of Rice stripe virus (RSV) populations in Oryza sativa (a natural host of RSV) and compared it with that of the RSV populations generated in an infection of Nicotiana benthamiana, an experimental host of RSV, using the high-throughput sequencing technology. From infected O. sativa and N. benthamiana plants, a total of 341 and 1675 site substitutions were identified in the RSV genome, respectively, and the average substitution ratio in these sites was 1.47 % and 7.05 %, respectively, indicating that the RSV populations from infected N. benthamiana plant are more diverse than those from infected O. sativa plant. Our result gives a direct evidence that virus might allow higher genetic diversity for host adaptation
Proteomic analysis and candidate allergenic proteins in Populus deltoides CL. ‘2KEN8’ mature pollen
No full textProteomic analysis was used to generate a map of Populus deltoides CL. ‘2KEN8’ mature pollen proteins. By applying 2-D electrophoresis, we resolved 403 protein spots from mature pollen. Using the matrix-assisted laser desorption/ionization time time-of-flight/time-of-flight tandem mass spectrometry method, we identified 178 distinct proteins from 218 protein spots expressed in mature pollen. Moreover, out of these, 28 proteins were identified as putative allergens. The expression patterns of these putative allergen genes indicate that several of these genes are highly expressed in pollen. In addition, the members of profilin allergen family were analyzed and their expression patterns were compared with their homologous genes in Arabidopsis and rice. Knowledge of these identified allergens has the potential to improve specific diagnosis and allergen immunotherapy treatment for patients with poplar pollen allergy
Cultural influences on social feedback processing of character traits
No full textCultural differences are generally explained by how people see themselves in relation to social interaction partners. While Western culture emphasizes independence, East Asian culture emphasizes interdependence. Despite this focus on social interactions, it remains elusive how people from different cultures process feedback on their own (and on others') character traits. Here, participants of either German or Chinese origin engaged in a face-to-face interaction. Consequently, they updated their self- and other-ratings of 80 character traits (e.g., polite, pedantic) after receiving feedback from their interaction partners. To exclude potential confounds, we obtained data from German and Chinese participants in Berlin (functional magnetic resonance imaging) and in Beijing (behavior). We tested cultural influences on social conformity, positivity biases, and self-related neural activity. First, Chinese conformed more to social feedback than Germans (i.e., Chinese updated their trait ratings more). Second, regardless of culture, participants processed self- and other-related feedback in a positively biased way (i.e., they updated more toward desirable than toward undesirable feedback). Third, changes in self-related medial prefrontal cortex activity were greater in Germans than in Chinese during feedback processing. By investigating conformity, positivity biases, and self-related activity in relation to feedback obtained in a real-life interaction, we provide an essential step towards a unifying framework for understanding the diversity of human culture
Suppression of HIV replication by CD8+regulatory T-cells in elite controllers
No full textWe previously demonstrated in the Chinese macaque model that an oral vaccine made of inactivated SIV and lactobacillus plantarum induced CD8+regulatory T-cells which suppressed the activation of SIV+CD4+T-cells, prevented SIV replication and protected macaques from SIV challenges.Here ,we sought whether a similar population of CD8+T-regs would induce the suppression of HIV replication in elite controllers (ECs), a small population (3‰) of HIV-infected patients with undetectable HIV replication. For that purpose, we investigated the in vitro antiviral activity of fresh CD8+T-cells on HIV-infected CD4+T-cells taken from 10 ECs. The 10 ECs had a classical genomic profile: all of them carried the KIR3DL1 gene and nine carried at least one allele of HLA-B:Bw4-80Ile ( i.e. with an isoleucine residue at position 80). In the nine HLA-B:Bw4-80Ile positive patients, we demonstrated a strong viral suppression byKIR3DL1-expressing CD8+T-cells that required cell-to-cell contact to switch off the activation signals in infected CD4+T-cells. KIR3DL1-expressing CD8+T-cells withdrawal and KIR3DL1 neutralization by a specific anti-KIR antibody inhibited the suppression of viral replication. Our findings provide the first evidence for an instrumental role of KIR-expressing CD8+ regulatory T- cells in the natural control of HIV-1 infection
