A long standing goal of reproductive physiologists was to develop a hormonal synchronization program that could overcome the problems and limitations associated with visual detection of estrus in dairy cattle. This goal was realized in 1995 with the publication of a hormonal synchronization protocol that combined GnRH and PGF2α to control ovarian physiology and is now commonly referred to as th...

Semiclassical quantization is very useful to understand the global behaviour of eigenfunctions and energy spectra of quantum systems, since it allows us to obtain analytic expressions. The leading semiclassical approximation (torus quantization) is just the first term of a certain h̄–expansion, which is called WKB (Maslov and Fedoriuk 1981). A systematic study of the accuracy of semiclassical ap...

of the Thesis Evaluation, Implementation, and Extension of Primitive Optimality Theory by Daniel Matthew Albro Master of Arts in Linguistics University of California, Los Angeles, 1997 Professor Edward P. Stabler, Chair Eisner's (1997a) Primitive Optimality Theory is a simple formal model of a subset of Optimality Theory (Prince and Smolensky 1993). The work presented here implements this model...

In this paper we investigate the structure of the equilibrium state of three{dimensional catalytic super-Brownian motion where the catalyst is itself a classical super-Brownian motion. We show that the reactant has an in nite local biodiversity or genetic abundance. This contrasts the nite local biodiversity of the equilibrium of classical super-Brownian motion. Another question we address is t...

We propose an estimation procedure for (semiparametric) panel data censored regression models in which the error terms may be subject to general forms of non-stationarity, thus permitting heteroscedasticity over time. The proposed estimator exploits a weak structural form imposed on the individual speciic eeect. This is in contrast to the estimators introduced in Honor e(1992) where the individ...

Article: Focus groups, originally called focused interviews, have been used as a data collection method since World War II and are commonly used in social science research. Krueger (1994) describes a focus group as "a carefully planned discussion designed to obtain perceptions on a defined area of interest in a permissive, nonthreatening environment" (p. 6). Guided by a skilled interviewer, par...

Supply chain management is an increasingly important organizational concern, and proper management of supplier relationships constitutes one essential element of supply chain success (Fawcett and Fawcett, 1995; Giunipero and Brand, 1996). Buying firms faced with problems of deficient supplier performance and/or capabilities can implement a wide range of supplier development practices in order t...

The present research investigated 9.5-month-old infants' use of spatial and featural information when determining the locations of object boundaries. Infants were shown displays for which spatial information (the relative positions of the boxes) and featural information (the colours and patterns of the boxes) led to either the same or different interpretations of the display. Infants' interpret...

This study examined differences between 3 matched samples of White (n = 2,306) and African American (n = 2,306), White (n = 1,176) and Hispanic (n = 1,176), and White (n = 466) and Asian (n = 466) children on the Naglieri Nonverbal Ability Test (NNAT; J. A. Naglieri, 1997a). The groups were selected from 22,620 children included in the NNAT standardization sample and matched on geographic regio...

We present the results from a multi-wavelength study of the mixed H+He composition DAO white dwarf RE J0720-318. A detailed analysis of UV and EUV spectroscopic data with state-of-the-art non-LTE photospheric models demonstrates that the observed opacity to EUV radiation probably results from a more complex structure than a simple H+He, chemically layered atmosphere. Instead, EUV photometry and...