Vortex in a relativistic perfect isentropic fluid and Nambu Goto dynamics

By a weak deformation of the cylindrical symmetry of the potential vortex in a relativistic perfect isentropic fluid, we study the possible dynamics of the central line of this vortex. In "stiff" material the Nanbu-Goto equations are obtainedComment: 11 pages, Accepted for publication in Physical Review

Cultural Connectedness as Personal Wellness in First Nations Youth

Adolescent development involves changes in self-concept and identification with different groups or cultural norms. Many First Nations adolescents have additional difficulties due to disconnections with family, schooling and cultural background, as a legacy of colonisation and social marginalisation. The present study used data from the First Nations Regional Longitudinal Health Survey, Youth, Phase 2 to test the hypothesis that connectedness to social and cultural factors would predict lower rates of reported depression in First Nations youth, using a logistic regression analysis. The findings indicated that connectedness to family and school, as well as having a sense of control over one\u27s life did predict wellness. However, spiritual balance, and the rating of local communities as having strengths in the areas of First Nations language use and availability of traditional, cultural events predicted greater instances of depression. These findings are discussed in relation to previous research, and recommendations for further investigation are made

Job and Career Resources: Not Just for Public Libraries

This article examines the process of creating, from idea to implementation, a career resource center at the Georgia College and State University Library and Instructional Technology Center. This resource center consists of a collection of the latest sources of information on strategies for successful career matching and job searching, in addition to a computer with bookmarked websites for easy navigation of selected helpful websites and informative articles

The Origin of the Magellanic Stream

SHORTENED ABSTRACT: We present numerical investigations designed to critically test models of the origin of the Magellanic Stream. The most developed model is the tidal model which fails to reproduce several of its characteristic properties. We suggest an alternative model for the origin of the Stream which can explain all of its observed features and dynamics, as well as provide a strong constraint on the distribution of gas within the halo of the Milky Way. We propose that the Stream consists of material which was ram-pressure stripped from the Magellanic System during its last passage through an extended ionized disk of the Galaxy. This collision took place some 500 million years ago at a galacto-centric distance of about 65 kpc, and swept $\sim 20$\% of the least bound HI into the Stream. The gas with the lowest column density lost the most orbital angular momentum, and is presently at the tip of the Stream, having fallen to a distance of $\sim 20$ kpc from the Milky Way attaining a negative velocity of 200 \kms. To prevent the stripped material from leading the Magellanic Clouds and attaining too large an infall velocity, we postulate the existence of an extended dilute halo of diffuse ionized gas surrounding the Milky Way. If the halo gas is at the virial temperature of the potential well of the Milky Way, its thermal emission would contribute $\sim$ 40\% of the observed diffuse background radiation in the 0.5-1.0 keV (M) band, consistent with recent ROSAT measurements as well as pulsar dispersion measures. Ram pressure strippingComment: 20 pages in TeX format. Please request hardcopy of plots, tables and text from B

Ben A. Davis, Jr. to Dr. Silver, 9 February 1961

Professional correspondenc

The Return of a Judicial Artifact?: How the Supreme Court Could Examine the Question of the Nondelegation Doctrine’s Place in Future Cases

Undergraduate Textual or Investigativ