1,467 research outputs found

    Air quality indices from ERTS-1 MSS information

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    Comparison between ground based atmospheric turbidity network measurements and the average scene grayness from MSS Channel 4 data is in progress. Correlation between these two sources is promising. If continued correlation occurs for other ERTS-1 overflight dates and ground test sites, a new operational use of ERTS-1 useful to Federal, state, and international organizations will become available

    Altered Cell-surface Receptor Levels Result from Fructose Advanced Glycation End Product-Induced Inflammation

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    Objective: As a result of the heightened reactivity fructose demonstrates compared to glucose and our current knowledge of glucose advanced glycation end-products, the aim of this research was to further elucidate the proinflammatory pathways involved in the response to fru-AGE exposure, including the effects of fru-AGEs on cell-surface receptor expression. We hypothesized that once microglia were activated in response to fru-AGE exposure, there would be an increase in the expression of RAGE and TLR4 to facilitate the proinflammatory cascade

    Investigation of environmental indices from the Earth Resources Technology Satellite

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    The author has identified the following significant results. Land use change, water quality, and air quality indices have been calculated from analysis of ERTS-1 multispectral scanning imagery and computer compatible tapes. Specifications have been developed and discussed for an ERTS-1 environmental monitoring system which help to serve the information needs of environmental managers at the Federal, state, regional, and local level. General conclusions of the investigation are that ERTS-1 data is very useful in land use mapping and updating to 10-15 categories, and can provide an overall measure of air and water turbidity; however, more and better ground truth and possibly additional spacecraft sensors will be required if specific air and water pollutants are to be quantified from satellite data

    Gender differences in identities and their socio-structural correlates: how gendered lives shape parental and work identities

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    This study draws on identity theory to explore parental and work identities. It examined gender differences in identities, as well as the moderating role of gender in the effects of individuals’ socio-structural characteristics. A sample of 148 couples with young children completed extensive questionnaires. As hypothesized, couples’ paid work strategy moderated gender differences in the salience and centrality of parental and work identities. Whereas significant differences in identities were found between stay-at-home mothers and their breadwinning husbands, no differences were found among dual-earner couples. Moreover, men’s work identity centrality increased when they had more and younger children, whereas women’s work identity centrality decreased. Finally, men’s parental identity centrality increased with their income, whereas women’s parental identity centrality decreased the more they earned. These findings attest to the importance of examining differences within as well as between genders, by taking into account the interactive effects of gender with other socio-structural characteristics

    The differential effects of fructose and glucose on advanced glycation end-product formation and cellular damage in vitro

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    The protective mechanisms of microglia cells help to maintain central nervous system (CNS) homeostasis and function.1 Microglia are innate immune cells that constantly survey their surrounding CNS microenvironment for pathogens, damaged cells, and inflammatory molecules. Sugars from our diet, including glucose and fructose, combine with endogenous proteins non-enzymatically and form advanced glycation-end products (AGEs).2 AGEs are shown to produce reactive oxygen species, leading to inflammation and cellular damage that may be mediated by microglia.3 Fructose consumption has become increasingly prevalent within the American diet, as it is a lower cost sweetener.4 Microglia become activated and phagocytic in the presence of high levels of glucose, but the effects of fructose are not yet fully understood.3 The reactivity of fructose within the body and it’s long-term health implications remain unclear

    Ultraviolet observations of LMC nova 1988

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    The IUE obtained ultraviolet spectra of a nova in an external galaxy. The spectral features do not seem unusual for a nova at maximum but it is hoped to be able to follow it for a long enough time to be able to study the high ionization lines that appear when the density drops to lower values (the nebular stage). A high dispersion spectrum was also obtained to assist in the line identification and to study the line of sight to the LMC 1 deg of arc away from SN 1987A

    Observations and simulations of nova Vul 1984 no. 2: A nova with ejecta rich in oxygen, neon, and magnesium

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    Nova Vul 1984 no. 2 was observed with IUE from Dec. 1984 through Nov. 1987. The spectra are characterized by strong lines from Mg, Ne, C, Si, O, N, and other elements. Data obtained in the ultraviolet, infrared, and optical show that this nova is ejecting material rich in oxygen, neon, and magnesium

    Optical and ultraviolet observations of nova Vul 1987

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    The outburst for a nova discovered in Nov. 1987 and followed since then is summarized. Although it was possible to observe it with the IUE at maximum, its ultraviolet energy faded rapidly, and after the first 2 weeks it was impossible to observe it at IUE wavelengths. It is observed to form a thick dust shell and is in the nebular stage

    Observations of classical novae in outburst

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    The IUE obtained ultraviolet data on novae in outburst. The characteristics of every one of the outbursts are different. Optical and infrared data on many of the same novae were also obtained. Three members of the carbon-oxygen class of novae are presented

    Abjection and alterity in the imagining of transgender in physical education and sport: a pedagogical approach in higher education

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    In physical education (PE) and sports there is little theoretical and empirical knowledge about transgender people, and particularly, on how they are and can be imagined within this context. In this paper, we present and analyze a pedagogical activity based on the reading and discussion of a fictional representation of a transgender person within a group of undergraduate students of Sport Sciences. Our theoretical frame situates abjection and alterity as opposing concepts on a continuum. Results show several ways in which a transgender person is imagined by students, as well as constraints and possibilities for the pedagogical proposal to promote moral imagining of transgender. Students situated in abjection justify their rejection of transgender persons, bringing up compassion (such as pity), genitalization, symbolic violence and stigmatization of transgender persons. The realm between abjection and alterity is characterized by tolerance of different normalities, as well as linguistic constraints hindering the acceptance of transgender people. In alterity, students acknowledge their limited ability to totally imagine what it is like to be transgender, and also, their will to encounter transgender persons face-to-face. Although results of this experience should not be interpreted in a prescriptive way, they show different ways to imagine transgender people in the domain of PE and sports, as well as the importance of considering the ethics of alterity as a means to advance in the moral imagining of transgender persons and, in general, of the distant Other
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