As a contribution to the ongoing discussion of trajectories of spinless particles in spaces with torsion we show that the geometry of such spaces can be induced by embedding their curves in a euclidean space without torsion. Technically speaking, we define the tangent (velocity) space of the embedded space imposing non-holonomic constraints upon the tangent space of the embedding space. Paralle...

Using the Annual Demographic Files of the March Current Population Survey, we estimate the effects of welfare policies, labor market conditions, and the Earned Income Tax Credit on the probability of employment for black and white single mothers, and we investigate the extent to which changes in these macro-level factors account for racial differences in employment growth over this period. Comp...

© Blackwell Verlag GmbH • www.blackwell.de • 1610-0379/2006/0401-0049 JDDG | 1 ̇2006 (Band 4) Introduction Historical background and nomenclature In his third book of “Epidimion” Hippocrates of Kos (460–377 BC) described a disease with symptoms comparable to the cardinal symptoms of Adamantiades-Behçet disease (ABD): “Many patients had aphthous ulcerations in the mouth. There were numerous purul...

PURPOSE The aim of this study was to compare surgical treatment options for young patients with glenohumeral arthritis. METHODS A systematic review of the English-language literature was conducted by searching PubMed, EMBASE, and Scopus with the following term: "(shoulder OR glenohumeral) AND (arthritis OR osteoarthritis) AND (young OR younger)." Studies that reported clinical or radiological...

BACKGROUND: Functional decline threatens independent living and is common among individuals diagnosed with cancer, especially those who are elderly. The purpose of this study was to explore whether dietary and exercise practices are associated with physical function status among older cancer survivors. METHODS: Mailed surveys were used to ascertain data on physical function, dietary fat, fruit ...

PURPOSE Chemotherapy-induced nausea and vomiting (CINV) are major adverse effects of cancer chemotherapy. We compared the impact of acute (during the first 24 hours postchemotherapy) and delayed (days 2 through 5 postchemotherapy) CINV on patients' quality of life (QoL) after highly or moderately emetogenic chemotherapy (HEC and MEC, respectively). PATIENTS AND METHODS This prospective, multi...

Identifying populations of organizations has been a signiWcant methodological challenge for scholars interested in examining various organizational dynamics. A common solution has been to rely upon a prior list or database of organizations. One such database on voluntary national organizations is the Encyclopedia of Associations (EA), a standard tool for sociologists and political scientists in...

This paper discusses the effects of asset price volatility on loan and aggregate output in a utility-based approach. In a real dynamic economy with heterogeneous agents, the creditdebt relationship is endogenously determined, given that borrowers are more productive but subject to collateral constraints. Resource allocation among borrowers and lenders affects the aggregate output as well as ass...

This article draws upon theories of the life course and child development to examine how structural changes in the family and parenting practices affect child behavior problems in middle childhood. Our analysis improves upon prior research by simultaneously examining the effects of poverty, single-motherhood, welfare, and kin co-residence, distinguishing between early and current exposure to ch...