Social Media and Young Adult\u27s Well-Being

Social media has become an integral part of young adult’s lives today. It has moved well beyond simple entertainment, and now can have a profound effect on many areas of functioning. The current study examines various aspects of well-being to see if there is a connection between social media use and global well-being. The participants for this study were 217 undergraduate students from Fort Hays State University. Participants completed a survey designed to measure overall well-being and broad aspects of overall well-being that included the Public Health Surveillance Well-Being Scale (PHS-WB), the Rosenberg Self-Esteem Scale (RSES), the Relationship Assessment Scale (RAS), and the Social Physique Anxiety Scale (SPAS). It was hypothesized that greater social media use would have a negative effect on one\u27s self report of well-being. Results did not indicate a significant relationship between social media use and the measure of overall well-being (PHS-WB) or the measure of relationship satisfaction (RAS). However, results did indicate that participants who used social media more had lower scores on the measure of self-esteem (RSES) and higher scores on the measure of social physique anxiety (SPAS). Further analysis also showed that the RSES, RAS, and SPAS had a significant relationship with the PHS-WB, implying that all three measure aspects of well-being. These results suggest that while social media use did not appear to have a significant relationship with overall well-being or relationship satisfaction, it did have a significant relationship with self-esteem and social physique anxiety. Results supported previous research that showed that social media has a complicated relationship with well-being, that can be influenced by a number of factors, including self-esteem. Results also supported research that showed that social media can have a negative effect on self-esteem and body satisfaction. However, these results were contradictory to research which showed that social media use can have a negative effect on relationship satisfaction

Explosive Nucleosynthesis in Helium Zones

We study by numerical integration the network of nuclear reactions that are expected to occur when the helium zones of a star are instantaneously heated and allowed to expand adiabatically. The dependence of the results on nuclear cross-sections, on the peak temperature, and on the time scale of the hydrodynamic expansion are discussed. Of particular interest is the result that the nucleus `4N, constituting about 2 percent by mass following the earlier operation of the CNO cycle, is substantially converted into 150, 15F, 15Ne, and 21Ne in ratios close to the solar abundances of 55N, 80, 55F, and 21Ne. It is very likely that these nuclei are synthesized in such zones. The nucleus 22Ne, on the other hand, is apparently not produced in the explosion in sufficient amounts relative to 21Ne, which indicates that 22Ne is probably synthesized in hydrostatic helium burning and survives the ejection

Heavy-Element Abundances from a Neutron Burst that Produces Xe-H

We examine quantitatively the suggestion that the heavy anomalous isotopes of Xe-HL found in meteoritic diamonds were produced by a short intense neutron burst and then implanted into the diamonds. Using a large nuclear reaction network we establish one (out of many) neutron irradiation histories that successfully reproduces the heavy isotopes of Xe-HL, and then evaluate what that same history would produce in every heavy element. This has become more relevant following recent measurement of anomalous Ba and Sr in those same diamond samples. Therefore we offer these calculations as a guide to the anomalies to be expected in all elements if this scenario is correct. We also discuss several other aspects of the problem, especially the established contradictions for Ba, the observed Kr pattern, the near normalcy of 129Xe, and some related astrophysical ideas. In particular we argue from p-process theory that the observed deficit of 78Kr in correlation with 124–126Xe excess implicates Type II supernovae as the diamond sources. However, our more complete astrophysical conclusions will be published elsewhere. This present work is offered as computational expectation for this class of models and as a guide to considerations that may accelerate the digestion of new experimental results in the diamonds

Identification of Influential Factors that Affect Students\u27 Behaviors in Traditional Classes Versus Technology-Mediated Learning (TML) Classes

Learning environments are rapidly changing from the traditional setting to include the use of multimedia technology in the classroom. In the past, researchers studied how the use of technology as a learning tool affects students’ learning and performance. There are, however, few studies that report students’ learning behavior in technology based learning environments. The purpose of this study is to find out whether or not there are any unique behaviors exhibited by students that are related to a different learning environment. In this study, two researchers observed two undergraduate elementary statistics classes (traditional class versus Technology-Mediated Learning (TML) class), and documented student behavioral differences between them. The data included quantitative and qualitative observations based on specific behavior categories. The results of the analysis lead to identification of six influential factors that affect students’ learning behaviors in different learning environments. Implications of res ts for both educators and administrators are discussed

The Closet and the Cul de Sac: Sex, Politics, and Suburbanization in Postwar California.

“The Closet and the Cul de Sac” connects the history of state-sponsored repression after World War II to the outbreak of the “culture wars” over gay rights in the United States in the 1970s. Using the San Francisco Bay Area as a case study, it explores the ways in which heterosexual norms shaped public policies in the 1940s. It then analyzes how Gay Liberation and the Religious Right grew out of postwar patterns in metropolitan development and how in the late twentieth century most straight voters have struggled to stake out an ideological middle-ground between the two social movements. Most histories of the culture wars begin with the sexual revolution of the 1960s and 1970s, when gay activists and social conservatives first confronted one another at the national level. Beginning my analysis in the postwar period, however, draws attention to the ways in which public policies shaped Americans’ perceptions of legitimate and illicit sexuality. Beginning in the 1940s, public authorities across the country adopted policies that both celebrated straight relationships and penalized queer ones. These included classroom-based sex education, criminal penalties for homosexual acts, and employment discrimination. At the same time, federal housing officials gave married couples preferential treatment in the mortgage market, and private developers built new suburbs specifically for straight families. Their actions pooled millions of newly married couples in new communities outside older cities, and, inadvertently, concentrated queer residents in urban centers. Underscoring postwar government policies reveals two important truths about American sexual politics since the 1970s. First, the Religious Right and Gay Liberation owe at least part of their origins to contradictions in state-sponsored metropolitan development. When gay rights activists in cities like San Francisco arose to challenge repressive policies in the 1970s, social conservatives in churches from the “family-friendly” suburbs arose to challenge them. Second, although most straight voters never joined the Religious Right, many of them nevertheless benefited from government-supported privileges like homeownership. Integrating the state into an analysis of the culture wars, therefore, implicates most straight Americans who avoided the strident rhetoric of social conservatives but who nevertheless objected to homosexuality.Ph.D.HistoryUniversity of Michigan, Horace H. Rackham School of Graduate Studieshttp://deepblue.lib.umich.edu/bitstream/2027.42/78777/1/howardcl_1.pd

Light echoes

The first light echo - scattered light from a stellar outburst arriving at the Earth months or years after the direct light from the event - was detected more than 100 years ago, around Nova Persei 1901. Renewed interest in light echoes has come from the spectacular echo around V838 Monocerotis, and from discoveries of light echoes from historical and prehistorical supernovæ in the Milky Way and Large Magellanic Cloud as well as from the 19 th-century Great Eruption of η Carinae. A related technique is reverberation mapping of active galactic nuclei. This report of a workshop on Light Echoes gives an introduction to light echoes, and summarizes presentations on discoveries of light echoes from historical and prehistorical events, light and shadow echoes around R CrB stars, and reverberation mapping. © 2012 International Astronomical Union

Thermonuclear Origin of Rare Neutron-Rich Isotopes

Many rare neutron-rich isotopes in the range 16\u3c~Z≲34 can be synthesized from seed nuclei exposed to explosive carbon burning. This process, which involves no new astrophysical parameters, can solve most of the outstanding problems in the thermonuclear synthesis of elements in the range Z≲34

Nucelosynthesis of Rare Nuclei from Seed Nuclei in Explosive Carbon Burning

We demonstrate that a Population I concentration of primordial heavy seed nuclei, when present in the carbon- and oxygewrich core of the presupernova star and exposed to the temperature and free nucleon densities of explosive carbon burning, is efficiently transmuted into the rare species 365, 40K, 43Ar, 43Ca, 46Ca, 48Ca, 405c, 45Ti, 0Ti, 50V, 62Ni, 64Ni, 68Zn, 70Zn, and 76Ge in approximately their solar-system abundance ratios. If the temperature is high enough (T0 2.1) that at least 10 percent of the Fe and Ni seed nuclei undergo (p, ) reactions during the explosion, the nuclei 60Cu, 63Zn, 71Ga, 73Ce, and perhaps 75As can also be synthesized. These nuclei comprise virtually all of the relatively rare neutron-rich nuclei in the range 36 \u3c A \u3c 76 except 04Cr and 50Fe. We emphasize the dependence of the results upon the rates of important nuclear reactions, most of which are unknown. The temperature, density, and timescale of the carbon explosion all have a strong influence on the results as well. We therefore regard this paper as an exploratory survey of a very difficult problem that will give increasing information about nucleosynthesis as nuclear facts and models of nuclear explosions become more secure