3,217 research outputs found
O curso de licenciatura em educação física da Universidade Federal de Santa Catarina: suas concepções de ensino e de educação física
No full textDissertação (mestrado) - Universidade Federal de Santa Maria. Centro de Educação Fisica e Desporto
Modeling Phytoplankton Blooms and Inorganic Carbon Responses to Sea‐Ice Variability in the West Antarctic Peninsula
No full text© The Author(s), 2021. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Schultz, C., Doney, S. C., Hauck, J., Kavanaugh, M. T., & Schofield, O. Modeling phytoplankton blooms and inorganic carbon responses to sea-ice variability in the West Antarctic Peninsula. Journal of Geophysical Research: Biogeosciences, 126(4), (2021): e2020JG006227, https://doi.org/10.1029/2020JG006227.The ocean coastal-shelf-slope ecosystem west of the Antarctic Peninsula (WAP) is a biologically productive region that could potentially act as a large sink of atmospheric carbon dioxide. The duration of the sea-ice season in the WAP shows large interannual variability. However, quantifying the mechanisms by which sea ice impacts biological productivity and surface dissolved inorganic carbon (DIC) remains a challenge due to the lack of data early in the phytoplankton growth season. In this study, we implemented a circulation, sea-ice, and biogeochemistry model (MITgcm-REcoM2) to study the effect of sea ice on phytoplankton blooms and surface DIC. Results were compared with satellite sea-ice and ocean color, and research ship surveys from the Palmer Long-Term Ecological Research (LTER) program. The simulations suggest that the annual sea-ice cycle has an important role in the seasonal DIC drawdown. In years of early sea-ice retreat, there is a longer growth season leading to larger seasonally integrated net primary production (NPP). Part of the biological uptake of DIC by phytoplankton, however, is counteracted by increased oceanic uptake of atmospheric CO2. Despite lower seasonal NPP, years of late sea-ice retreat show larger DIC drawdown, attributed to lower air-sea CO2 fluxes and increased dilution by sea-ice melt. The role of dissolved iron and iron limitation on WAP phytoplankton also remains a challenge due to the lack of data. The model results suggest sediments and glacial meltwater are the main sources in the coastal and shelf regions, with sediments being more influential in the northern coast.C. Schultz, S. C. Doney, M. T. Kavanaugh, and O. Schofield acknowledge support by the US National Science Foundation (Grant no. PLR-1440435), and C. Schultz and S. C. Doney acknowledge support from the University of Virginia. This research has also received funding from the Helmholtz Young Investigator Group Marine Carbon and Ecosystem Feedbacks in the Earth System (MarESys), Grant number VH-NG-1301
Women Characters in the Writings by Marusya Volvachivna, Maria Proskurivna and T tyana Sulyma
No full textThe article is devoted to the problem of women characters in the writings by Marusya Volvachivna, Maria Proskurivna and T tyana Sulyma. The author presented a classification of women characters in the texts studied and gave a general comparative analysis of them
Neo, post, hiper, trans, ¿fin? Lecturas recientes de literatura hispanoamericana
No full textMaria T. Ramos-Garcia is a contributing author, “De Ardiente paciencia a Il Postino: Política, marketing y globalización.”https://openprairie.sdstate.edu/mlgs_book/1006/thumbnail.jp
Morada de la palabra
No full textMaria T. Ramos-Garcia is a contributing author De la economía doméstica a la economía nacional: Lola Larrosa.https://openprairie.sdstate.edu/mlgs_book/1007/thumbnail.jp
Capturing coastal water clarity variability with Landsat 8
No full text© The Author(s), 2019. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Luis, K. M. A., Rheuban, J. E., Kavanaugh, M. T., Glover, D. M., Wei, J., Lee, Z., & Doney, S. C. Capturing coastal water clarity variability with Landsat 8. Marine Pollution Bulletin, 145, (2019): 96-104, doi: 10.1016/j.marpolbul.2019.04.078.Coastal water clarity varies at high temporal and spatial scales due to weather, climate, and human activity along coastlines. Systematic observations are crucial to assessing the impact of water clarity change on aquatic habitats. In this study, Secchi disk depths (ZSD) from Boston Harbor, Buzzards Bay, Cape Cod Bay, and Narragansett Bay water quality monitoring organizations were compiled to validate ZSD derived from Landsat 8 (L8) imagery, and to generate high spatial resolution ZSD maps. From 58 L8 images, acceptable agreement was found between in situ and L8 ZSD in Buzzards Bay (N = 42, RMSE = 0.96 m, MAPD = 28%), Cape Cod Bay (N = 11, RMSE = 0.62 m, MAPD = 10%), and Narragansett Bay (N = 8, RMSE = 0.59 m, MAPD = 26%). This work demonstrates the value of merging in situ ZSD with high spatial resolution remote sensing estimates for improved coastal water quality monitoring.This work was supported by the John D. and Catherine T. MacArthur Foundation (grant 14-106159-000-CFP) and by the National Science Foundation grant DGE 1249946, Integrative Graduate Education and Research Traineeship (IGERT): Coasts and Communities – Natural and Human Systems in Urbanizing Environments. Lastly, we are indebted to the Massachusetts Water Resources Authority, Buzzards Bay Coalition, Provincetown Center for Coastal Studies, Narragansett Bay Commission, and the numerous citizen scientists responsible for collecting the in situ measurements used in this study. Comments and suggestions from our anonymous reviewer were greatly appreciated
Violence against women addressed in Carolina Maria de Jesus's work "Quarto de Despego"
No full textThis article aims to present the violence against women highlighted in the work Quarto de despejo: diary of a favelada by Carolina Maria de Jesus. The theme was chosen based on the researcher's professional experience, as she witnessed violence against women and the emotional and physical damage resulting from this type of aggression. In order to achieve the objective of this study, a bibliographic research of a qualitative nature was carried out, since it is a literary analysis, using the phenomenological approach as a method of approach. The theoretical foundation was based on the vision of Vera Teixeira de Aguiar, Maria da Glória Bordini, Regina Zilberman, Thomas Bonnici and Mikhail Bakhtin. As a result, it was observed that violence against women was perceived in the work in question in different ways, therefore writing is a form of self-defense for the author. With her critical, reflective and, at the same time, poetic vision, Carolina gave voice to the marginalized, opening up the social neglect. Important issues that should always receive a special look and never be left aside, were denounced by her through her marginal literature.Este artigo tem por objetivo apresentar a violência contra a mulher destacada na obra Quarto de despejo: diário de uma favelada de Carolina Maria de Jesus. A escolha da temática se deu pela experiência profissional da pesquisadora por presenciar in loco a violência contra a mulher e os prejuízos emocionais e físicos advindos deste tipo agressão. Para se alcançar o objetivo deste estudo, foi realizada uma pesquisa bibliográfica de natureza qualitativa, pois se trata de uma análise literária, utilizando como método de abordagem o fenomenológico. A fundamentação teórica foi baseada na visão de Vera Teixeira de Aguiar, Maria da Glória Bordini, Regina Zilberman, Thomas Bonnici e Mikhail Bakhtin. Como resultado, observou-se que a violência contra a mulher foi percebida na obra em questão de diversas formas, sendo, pois a escrita uma forma de autodefesa para a autora. Com sua visão crítica, reflexiva e, ao mesmo, tempo poética, Carolina deu voz aos marginalizados, escancarando o descaso social. Questões importantes que sempre devem receber um olhar especial e jamais serem deixadas de lado, foram denunciadas por ela através da sua literatura marginal
Hierarchical and dynamic seascapes: a quantitative framework for scaling pelagic biogeochemistry and ecology
No full textComparative analyses of oceanic ecosystems require an objective framework to define coherent study regions and scale the patterns and processes observed within them. We applied the hierarchical patch mosaic paradigm of landscape ecology to the study of the seasonal variability of the North Pacific to facilitate comparative analysis between pelagic ecosystems and provide spatiotemporal context for Eulerian time-series studies. Using 13-year climatologies of sea surface temperature (SST), photosyn- thetically active radiation (PAR), and chlorophyll a (chl-a), we classified seascapes in environmental space that were monthly-resolved, dynamic and nested in space and time. To test the assumption that seascapes represent coherent regions with unique biogeochemical function and to determine the hierarchical scale that best characterized variance in biogeochemical parameters, independent data sets were analyzed across seascapes using analysis of variance (ANOVA), nested-ANOVA and multiple linear regression (MLR) analyses. We also compared the classification efficiency (as defined by the ANOVA F-statistic) of resultant dynamic seascapes to a commonly-used static classification system. Variance of nutrients and net primary productivity (NPP) were well characterized in the first two levels of hierarchy of eight seascapes nested within three superseascapes (R2 = 0.5?0.7). Dynamic boundaries at this level resulted in a nearly 2-fold increase in classification efficiency over static boundaries. MLR analyses revealed differential forcing on pCO2 across seascapes and hierarchical levels and a 33% reduction in mean model error with increased partitioning (from 18.5 latm to 12.0 latm pCO2). Importantly, the empirical influence of seasonality was minor across seascapes at all hierarchi- cal levels, suggesting that seascape partitioning minimizes the effect of non-hydrographic variables. As part of the emerging field of pelagic seascape ecology, this effort provides an improved means of monitoring and comparing oceanographic biophysical dynamics and an objective, quantitative basis by which to scale data from local experiments and observations to regional and global biogeochemical cycles.Fil: Kavanaugh, Maria T.. Woods Hole Oceanographic Institution. Department of Marine Chemistry and Geochemistry; Estados Unidos. Oregon State University. College of Earth, Ocean, and Atmospheric Sciences; Estados UnidosFil: Hales, Burke. Oregon State University. College of Earth, Ocean, and Atmospheric Sciences; Estados UnidosFil: Saraceno, Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; ArgentinaFil: Spitz, Yvette H.. Oregon State University. College of Earth, Ocean, and Atmospheric Sciences; Estados UnidosFil: White, Angelicque E.. Oregon State University. College of Earth, Ocean, and Atmospheric Sciences; Estados UnidosFil: Letelier, Ricardo M.. Oregon State University. College of Earth, Ocean, and Atmospheric Sciences; Estados Unido
Introduction: Rethinking Freedom of Expression and Media Freedom
No full textFROM THE INTRODUCTION: Freedom of expression is an essential part of democracy, and free speech goes hand in hand with a free media. Thomas Jefferson, the principal author of the American Declaration of Independence, wrote in 1816: “Where the press is free and every man able to read, all is safe” (Jefferson 1816/1900). And as emphasized in the UK’s Leveson report earlier this decade, “With these rights, however, come responsibilities to the public interest: to respect the truth, to obey the law and to uphold the rights and liberties of individuals. In short, to honour the very principles proclaimed and articulated by the industry itself ” (Leveson 2012:4). Although the principle of free speech could be said to remain largely the same over time, the conditions for free speech and free media do not; they are certainly not the same as when Jefferson made his statement. Today the conditions are more democratic overall and the level of state censorship is lower (at least in parts of the world), concerns about state surveillance notwithstanding. However, the market pressure on media financing models and market-driven ideas that suggest the state should not ‘interfere’ in the media ecology makes journalism more vulnerable and less independent from commercial interests. It is these changing conditions of state and market that this book explores. We seek to make it at least a little more difficult to discuss free speech without addressing such contemporary conditions. //From a Nordic perspective, the theme is highly topical because it coincides with the 250 th anniversary of the world’s oldest constitutional protection for a free press and free speech, the Swedish Press Act of 1766, passed 50 years before Jefferson made his statement, quoted above.The overall aim of this book is to focus on challenges from the market to free speech and how free speech can be protected, promoted and developed in a time when the lines between journalism and advertising are blurred. Its scope covers both structural and individual levels. It analyses tensions between what can be called democracy-driven and market-driven freedom of expression ..
Hades as the ruler of the Damned in the mosaic complex on the west wall of Basilica Santa Maria Assunta in Torcello, Italy
No full textThe aim of this article is to show the figure of the ancient god Hades as an important part of Byzantine symbolic representations of the Last Judgement, using the example of the mosaic from the west wall of Basilica Santa Maria Assunta in Torcello, Italy. The article is divided into three main parts. The first part briefly introduces the mosaic complex from Torcello, providing a description of the place, the Basilica, and the mosaic. In the second part, the author focuses on the fragment of the mosaic presenting the figure of Hades in hell. In an effort to show the iconographical and cultural continuity between ancient and early medieval representations, the author compares this figure to its ancient prototype. The last part of the article portrays the development of the motif of the Last Judgment by looking at other chosen representations. In conclusion, the author proposes a possible meaning of the presence of Hades in the mosaic of Torcello
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