In a recent paper, Hessen (Psychometrika 70(3):497-516, 2005) introduces the class of constant latent odds-ratios models as an extension of the Rasch model for which the sum score is still the sufficient statistic for ability. In this paper the relation between both the general and the general parametric constant latent odds-ratios model and the Rasch model is considered.

INTRODUCTION. .................................................................. 488 Description of Drosophila simulans. ................................................ 488 Distribution of Drosophila simulans ................................................ 491 Discovery of Drosophila simulans. ................................................. 491 Drosophila melanogaster 0 X D . simulans 61. ....

J. THE CONTEXT: A SHORT HISTORY OF AFFIRMATIVE ACTION POLICY AND LAW ...................................... ...... ........................ .. ..... .493 II. MISMATCH, EFFICIENCY, AND MERITOCRACy .................................... .497 III. RACE, ETHNICITY, AND MiSMATCH ............................. .. .... .............. ... .499 IV. METHODOLOGICAL CONSIDERATIONS ... .... ............ ..... ...

(1) Berkeley Sensor and Actuator Center – University of California, Berkeley. 497 Cory Hall, Berkeley, CA 94720-1774 (2) Department of Bioengineering – University of California, Berkeley. 459 Evans Hall, Berkeley, CA 94720-1762 (3) Department of Mechanical Engineering – University of California, Berkeley. Berkeley, CA 94720-1740, USA -Tel +1 510 642 9360, Fax +1 510 643 6637, Email liepmann@me....

The essential role played by progesterone in the maintenance of pregnancy is unequivocal; however, the effects of progesterone on the secretory patterns of placental and pituitary molecules during the gestation period are not well defined. The objective of this study was to describe pregnancy-associated glycoprotein (PAG) concentrations (measured by RIA-497 and RIA-Pool) in pregnant females wit...

This study was designed to establish possible factors affecting plasma pregnancy-associated glycoprotein (PAG) concentrations during early pregnancy in high producing dairy cows with live fetuses. Blood samples were obtained on days 35, 42, 49, 56 and 63 of gestation from 80 lactating cows in two herds carrying live fetuses. Radioimmunoassay systems were used to determine PAG (RIA-497 and RIA-7...

An association between epidermal growth factor receptor (EGFR) signaling pathway and response of cancer cells to ionizing radiation has been reported. Recently, a polymorphic variant in the EGFR gene that leads to an arginine-to-lysine substitution in the extracellular domain at codon 497 within subdomain IV of EGFR has been identified. The variant EGFR (HER-1 497K) may lead to attenuation in l...