Uses and potentialities of digital narratives in the formation of geography teachers : an experience in the supervised internship

Orientador: Tânia Seneme do CantoDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de GeociênciasResumo: O trabalho consiste numa análise dos registros de alunos durante a experiência como estagiário docente na disciplina de Estágio Supervisionado da turma de Licenciatura em Geografia da Unicamp durante o ano de 2018. A proposta de pesquisa teve como um dos aspectos mais importantes compreender alguns recursos digitais como modalidades semióticas e ferramentas potencializadoras do ensino de Geografia, principalmente os da produção de narrativas digitais. Nesse período de estágio, foram coletados dados a partir das observações realizadas junto as atividades desenvolvidas na disciplina e, com isso conseguimos ter elementos para entender quais são os sentidos e as funções criadas e compartilhadas pelos sujeitos (Leitores Ubíquos) no ambiente virtual, bem como foi possível ter um olhar de como se dá a relação deles com as ferramentas e suportes digitais. Para isso utilizamos técnicas de investigação como pesquisador participante das aulas e atividades, consideramos os materiais produzidos pelos próprios sujeitos observados e os registros em um diário de análise, assim como questionário aos estudantes do curso. Desse modo, trabalho apresentou um mapeamento com relação as diferentes funções e significados que a população estudada elaborou para as ferramentas utilizadas e os tornou conhecidos a partir de uma análise do registro das práticas desses sujeitos em emergência no contexto da cibercultura. As narrativas digitais, foco principal da presente dissertação, publicadas no Blog da disciplina, trouxeram a possibilidade de os futuros professores registrarem suas experiências em sala de aula, refletindo sobre a temática e já elucidando sua forma de ver aquela realidade vivenciada por eles. Aliado a isso, o fato de todas as narrativas ficarem expostas no site e compartilhadas no grupo do Facebook criado da disciplina, proporcionou um compartilhamento e uma troca de ideias entre os colegas da disciplinaAbstract: This work is based on an analysis of the results collected for the development of the Master's Dissertation during an experience as a trainee teacher in the Supervised Internship discipline by the Graduation¿s Degree in Geography at Unicamp during 2018. One of the most important aspects of the research proposal was to understand some digital resources such as semiotic modalities and tools that enhance the teaching of Geography, especially those for the production of digital narratives. In this internship period, data were collected from the observation carried out together with the activities developed in the discipline and we were able to have a basis to understand how the senses and functions are created and shared by the subjects (Ubiquitous Readers) in the virtual environment are, as well as it was possible to have a look at their relation to tools and digital media. For this, we used investigation techniques as a researcher participating in classes and activities, we consider the materials produced by the observed subjects themselves and the records in an analysis diary, as well as a questionnaire to the students of the course. In this way, the work presented a mapping regarding to the different functions and meanings that the studied population developed for the tools used and made them known through an analysis of the record of the practices of these subjects in emergency in the context of cyberculture. The digital narratives, the focus of the present dissertation, published in the Discipline Blog, brought the possibility for future teachers to record their experiences in the classroom, reflecting on the theme and already elucidating their way of seeing that reality experienced by them. Allied to this, the fact that all narratives are exposed on the website and shared in the Facebook group created from the discipline, provided a sharing and an exchange of ideas between colleagues in the disciplineMestradoAnálise Ambiental e Dinâmica TerritorialMestre em Geografi

MÍDIAS LOCATIVAS E REALIDADE AUMENTADA: POTENCIALIDADES PARA O ENSINO GEOGRAFIA NA CIBERCULTURA

The emergence of new information and communication technologies reconfigures the human way of life, culture and relations with space. Locative media, which aggregate a specific informational content through access to GPS location, brings to the forefront new spatiality and potentialities, such as the use of augmented reality (RA) technology, which has been diffused and improved with games and applications launched each day, allowing the visualization of virtual elements in the real world, in real time, which is to promote new possibilities of interaction between these elements and users. This article will discuss the uses of augmented reality and its potential for Geography TeachingO surgimento de novas tecnologias de informação e comunicação ressignificam o modo de vida humano, a cultura e as relações com o espaço. As mídias locativas, que agregam a um local específico um determinado conteúdo informacional através do acesso à localização GPS, fazem emergir novas espacialidades e potencialidades, como com o uso tecnologia da realidade aumentada (RA), que tem sido difundida e aperfeiçoada com os jogos e aplicativos lançados a cada dia, permitindo a visualização de elementos virtuais no mundo real, em tempo real, o que passa a promover novas possibilidades de interação entre esses elementos e os usuários. Este artigo discorrerá sobre os usos da realidade aumentada e suas potencialidades para a Geografia e o ensin

A hybrid modular multilevel converter with reduced full-bridge submodules

A hybrid modular multilevel converter (MMC) with reduced full-bridge (FB) submodules (SMs) is proposed, where a high voltage rating half-bridge (HB) based MMC is connected in series with a low voltage rating FB-MMC in parallel with a fault breaking circuit on its DC side. Unlike conventional hybrid MMCs with mixed HB and FB SMs, the proposed topology uses the DC capacitor in the fault breaking circuit to block DC faults, while the FB-MMC only commutates the fault current from the FB-MMC to the fault breaking circuit. Thus, the proposed converter only requires around 10%-20% FB SMs, leading to reduced capital cost and losses compared to typical hybrid MMC. The optimal ratio of the FB-MMC and HB-MMC is assessed and comparative studies show superiority of the proposed topology over other alternatives. A case study with 10% FB SMs demonstrates the validity of the proposed hybrid MMC for DC fault blocking and post-fault system restart

Estudo higroscópico da polpa em pó do fruto da pitaya (Hylocereus costaricencis) em diferentes concentrações de maltodextrina

Pitaya is a nutritious fruit with low caloric value and high antioxidant power due to the presence of betalains, nitrogenous and water-soluble pigments similar to anthocyanins and flavonoids, with different chemical structures. This article presents a systematic Pitaya pulp powder dye study regarding its hygroscopic behavior. The experiments were conducted by adding maltodextrin in the proportions of 10, 20, 30, 40, 50 and 100%. The different percentages allowed a progressive incremental number of solids in Pitaya dye and a more thorough pure powder dye analysis. The bleaching process was carried out in all samples and, subsequently, the samples were lyophilized for 48 hours to increase stability through the reduction of water activity. This is done to minimize enzymatic chemical reactions, which occur during material storage, and to augment product lifespan. Therefore, by the construction of adsorption and moisture desorption isotherms at 25 °C in different concentrations of maltodextrin, the hygroscopicity of Pitaya dye was analyzed as well as the applicability of mathematical models in the prediction of product isotherms. The obtained isotherms were sigmoidal, classified as type II and the GAB model was proved more suitable to be used in the prediction of dye sorption isotherms.Neste trabalho estudou-se o corante da polpa de pitaya em pó e seu comportamento higroscópico. A pitaya é um fruto nutritivo com baixo valor calórico e alto poder antioxidante devido à presença de betalaínas, pigmentos nitrogenados e hidrossolúveis semelhantes ao grupo das antocianinas e flavonóides, com estruturas químicas diferentes. Os experimentos foram realizados adicionando maltodextrina no corante de pitaya nas proporções de 10, 20, 30, 40, 50 e 100%, visando aumentar a quantidade de sólidos no corante e analisando-se também o corante em pó puro. Em todas as amostras foi realizado o processo de branqueamento e, em seguida, a liofilização por 48 horas, aumentando, assim, a estabilidade por meio da redução da atividade de água, de modo a minimizar reações químicas enzimáticas que ocorrem durante a armazenagem do material, contribuindo para o acréscimo da vida útil do produto. Portanto, por meio da construção de isotermas de adsorção e dessorção de umidade a 25 °C em diferentes concentrações de maltodextrina analisou-se a higroscopicidade do corante de pitaya, assim como, a aplicabilidade de modelos matemáticos na predição das isotermas do produto. As isotermas obtidas foram sigmoidais, classificadas como do tipo II e o modelo de GAB mostrou-se mais adequado para ser utilizado na predição das isotermas de sorção do corante

A Pitaya (hylocereus costaricencis) pulp powder hygroscopic study in different maltodextrin concentrations

Neste trabalho estudou-se o corante da polpa de pitaya em pó e seu comportamento higroscópico. A pitaya é um fruto nutritivo com baixo valor calórico e alto poder antioxidante devido à presença de betalaínas, pigmentos nitrogenados e hidrossolúveis semelhantes ao grupo das antocianinas e flavonóides, com estruturas químicas diferentes. Os experimentos foram realizados adicionando maltodextrina no corante de pitaya nas proporções de 10, 20, 30, 40, 50 e 100%, visando aumentar a quantidade de sólidos no corante e analisando-se também o corante em pó puro. Em todas as amostras foi realizado o processo de branqueamento e, em seguida, a liofilização por 48 horas, aumentando, assim, a estabilidade por meio da redução da atividade de água, de modo a minimizar reações químicas enzimáticas que ocorrem durante a armazenagem do material, contribuindo para o acréscimo da vida útil do produto. Portanto, por meio da construção de isotermas de adsorção e dessorção de umidade a 25 °C em diferentes concentrações de maltodextrina analisou-se a higroscopicidade do corante de pitaya, assim como, a aplicabilidade de modelos matemáticos na predição das isotermas do produto. As isotermas obtidas foram sigmoidais, classificadas como do tipo II e o modelo de GAB mostrou-se mais adequado para ser utilizado na predição das isotermas de sorção do corante.Pitaya is a nutritious fruit with low caloric value and high antioxidant power due to the presence of betalains, nitrogenous and water-soluble pigments similar to anthocyanins and flavonoids, with different chemical structures. This article presents a systematic Pitaya pulp powder dye study regarding its hygroscopic behavior. The experiments were conducted by adding maltodextrin in the proportions of 10, 20, 30, 40, 50 and 100%. The different percentages allowed a progressive incremental number of solids in Pitaya dye and a more thorough pure powder dye analysis. The bleaching process was carried out in all samples and, subsequently, the samples were lyophilized for 48 hours to increase stability through the reduction of water activity. This is done to minimize enzymatic chemical reactions, which occur during material storage, and to augment product lifespan. Therefore, by the construction of adsorption and moisture desorption isotherms at 25 °C in different concentrations of maltodextrin, the hygroscopicity of Pitaya dye was analyzed as well as the applicability of mathematical models in the prediction of product isotherms. The obtained isotherms were sigmoidal, classified as type II and the GAB model was proved more suitable to be used in the prediction of dye sorption isotherms.Facultad de Ciencias Agrarias y Forestale

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

ATLANTIC-PRIMATES: a dataset of communities and occurrences of primates in the Atlantic Forests of South America

Primates play an important role in ecosystem functioning and offer critical insights into human evolution, biology, behavior, and emerging infectious diseases. There are 26 primate species in the Atlantic Forests of South America, 19 of them endemic. We compiled a dataset of 5,472 georeferenced locations of 26 native and 1 introduced primate species, as hybrids in the genera Callithrix and Alouatta. The dataset includes 700 primate communities, 8,121 single species occurrences and 714 estimates of primate population sizes, covering most natural forest types of the tropical and subtropical Atlantic Forest of Brazil, Paraguay and Argentina and some other biomes. On average, primate communities of the Atlantic Forest harbor 2 ± 1 species (range = 1–6). However, about 40% of primate communities contain only one species. Alouatta guariba (N = 2,188 records) and Sapajus nigritus (N = 1,127) were the species with the most records. Callicebus barbarabrownae (N = 35), Leontopithecus caissara (N = 38), and Sapajus libidinosus (N = 41) were the species with the least records. Recorded primate densities varied from 0.004 individuals/km 2 (Alouatta guariba at Fragmento do Bugre, Paraná, Brazil) to 400 individuals/km 2 (Alouatta caraya in Santiago, Rio Grande do Sul, Brazil). Our dataset reflects disparity between the numerous primate census conducted in the Atlantic Forest, in contrast to the scarcity of estimates of population sizes and densities. With these data, researchers can develop different macroecological and regional level studies, focusing on communities, populations, species co-occurrence and distribution patterns. Moreover, the data can also be used to assess the consequences of fragmentation, defaunation, and disease outbreaks on different ecological processes, such as trophic cascades, species invasion or extinction, and community dynamics. There are no copyright restrictions. Please cite this Data Paper when the data are used in publications. We also request that researchers and teachers inform us of how they are using the data. © 2018 by the The Authors. Ecology © 2018 The Ecological Society of Americ

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost