Texas Christian University

About: Texas Christian University is a education organization based out in Fort Worth, Texas, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 3245 authors who have published 8258 publications receiving 282216 citations. The organization is also known as: TCU & Texas Christian University, TCU.

Trends in Socioeconomic Achievement among Immigrant and Native-Born Asian-Americans, 1960–1976*

Abstract: The first waves of Asian immigration to the United States were halted by exclusionary and racist legislation in the late nineteenth and early twentieth centuries. With the reforms of the 1965 Immigration Act, there has been a resurgence of immigration from Asia. This study analyzes changes in the socioeconomic composition of immigrant and native-born Asian-Americans (Japanese, Chinese, and Filipinos) from 1960 to 1976. The educational levels of all Asian groups, immigrant and native-born, have equaled or exceeded those of whites in recent years. Asians are more likely to be found in professional occupations than are whites, although there is also a concentration of immigrant Chinese and Filipinos in service occupations and the retailtrade sector. Native-born Asian-Americans have reached parity with whites in terms of average earnings, though immigrant Asians remain far behind. The findings are discussed in light of the changing structural conditions and opportunities of Asians in American society.

Enhancement of fracture toughness in nanostructured diamond-SiC composites

Abstract: We synthesized diamond–SiC nanocomposites with superhardness and greatly enhanced fracture toughness through a synthetic approach based on high-energy ball milling to form amorphous Si precursors followed by rapid reactive sintering at high pressure (P) and high temperature (T). We show how the simultaneous P–T application allows for better control of the reactive sintering of a nanocrystalline SiC matrix in which diamond crystals are embedded. The measured fracture toughness KIC of the synthesized composites has been enhanced greatly, as much as 50% from 8.2 to 12.0 MPa m1/2, as the crystal size of the SiC matrix decreases from 10 μm to 20 nm. Our result contradicts a commonly held belief of an inverse correlation between hardness and fracture toughness. We demonstrate the importance of nanostructure for the enhancement of mechanical properties of the composite materials.

Relationships between psychological climate and a vie model for work motivation1

Abstract: The present study examined relationships between psychological climate and components of a valence-instrumentality-expectancy model. Data were obtained from 504 managerial employees of a large health care company. A principal component analysis of responses to 35 composites representing perceptions of the job, leadership, workgroup, and organization yielded six psychological climate components. Similar analyses were conducted separately for 20 valence items and 20 instrumentality items. Considerable similarity was found among the instrumentality and valence components, with one component in each area representing intrinsic outcomes, one component representing organizationally-mediated extrinsic outcomes, one representing negative or neutral outcomes, and one representing leader and workgroup-mediated extrinsic outcomes. Relationships among psychological climate and valence-instrumentality-expectancy components were significant and supported several hypotheses proposed in the literature.