ESTIMATING THE EFFECT OF HOUSEHOLD AGE-SEX COMPOSITION ON FOOD EXPENDITURES

Food Consumption/Nutrition/Food Safety,

SPLINE FUNCTIONS: AN ALTERNATIVE TO ESTIMATING INCOME-EXPENDITURE RELATIONSHIPS FOR BEEF

Demand and Price Analysis,

HOUSEHOLD FLUID MILK EXPENDITURE PATTERNS IN THE SOUTH AND UNITED STATES

Food Consumption/Nutrition/Food Safety,

A PROBABILISTIC APPROACH TO ESTIMATING AGGREGATE REGIONAL DEMAND FOR BROILER MEAT

Demand and Price Analysis,

The Neural Encoding of Cocaine-Induced Devaluation in The Ventral Pallidum

Cocaine experience affects motivation structures such as the nucleus accumbens (NAc) and its major output target, the ventral pallidum (VP). Previous studies demonstrated that both NAc activity and hedonic responses change reliably as a taste cue comes to predict cocaine availability. Here we extended this investigation to examine drug-experience induced changes in hedonic encoding in the VP. VP activity was first characterized in adult male Sprague–Dawley rats in response to intraoral infusions of palatable saccharin and unpalatable quinine solutions. Next, rats received 7 daily pairings of saccharin that predicted either a cocaine (20 mg/kg, ip) or saline injection. Finally, the responses to saccharin and quinine were again assessed. Of 109 units recorded in 11 rats that received saccharin–cocaine pairings, 71% of responsive units significantly reduced firing rate during saccharin infusions and 64% increased firing rate during quinine exposure. However, as saccharin came to predict cocaine, and elicited aversive taste reactivity, VP responses changed to resemble quinine. After conditioning, 70% of saccharin-responsive units increased firing rate. Most units that encoded the palatable taste (predominantly reduced firing rate) were located in the anterior VP, while most units that were responsive to aversive tastes were located in the posterior VP. This study reveals an anatomical complexity to the nature of hedonic encoding in the VP

Using ColorThink and Online Teaching

The author taught many years of color reproduction-related courses to college students in print media and graphic communication programs. He used to think that hands-on lab assignment was only possible in-person in laboratory settings. His recent online teaching experiences proved him wrong. This document describes a lab assignment, Using ColorThink, in an online course, administered by Wuhan University, in the summer of 2020. Due to the coronavirus pandemic, no one was on campus. All eleven students were spread out across many provinces in China. As an adjunct instructor, located in North America, the author was able to connect with his students via Zoom for synchronous communication and relied on WeChat and email for asynchronous communication

MODELING THE EFFECTS OF THE FOOD STAMP PROGRAM ON PARTICIPATING HOUSEHOLDS' PURCHASES: AN EMPIRICAL APPLICATION

Food Security and Poverty,

Direct determination of the ambipolar diffusion length in strained InxGa1−xAs/InP quantum wells by cathodoluminescence

The ambipolar diffusion length is measured in strained InxGa1−xAs/InP quantum wells for several mole fractions in the interval 0.3<x<0.8 by cathodoluminescence. The ambipolar diffusion length is found to have a significantly higher value in the lower indium mole fraction samples corresponding to tensile-strained wells. This longer diffusion length for the tensile samples is consistent with results of carrier lifetime experiments by M. C. Wang, K. Kash, C. E. Zah, R. Bhat, and S. L. Chuang [Appl. Phys. Lett. 62, 166 (1993)]