Social and Behavioral Sciences Commons^™

Dopamine D1 Receptor Activity In The Basolateral Amygdala Is Important For Mediating Fear, Reward And Safety Discrimination Learning, Ka Ho Ng

Open Access Theses

Post traumatic stress disorder (PTSD) patients frequently show impairment in safety learning (Jovanovic, Kazama, Bachevalier, & Davis, 2012). Since the amygdala is known to be critical for emotional processing(Wassum & Izquierdo, 2015) and dopamine signaling in the amygdala is important for mediating both fear and reward learning, current experiments examined the role of dopamine signaling in the BLA in mediating both safety learning and reward seeking. We manipulated dopamine D1 receptor activity with a D1 receptor agonist (SKF 38393) or D1 receptor antagonist (SCH23390) either systemically or infused directly into the BLA 20 minutes prior to training rats in a …

The Labor Market Consequences Of Endogenous Low-Skill Migration With A Market-Based Immigration Policy, German A. Marquez Alcala

Open Access Theses

The undocumented migration of Mexican nationals to the U.S. is largely influenced by labor demand in low-skill sectors. The legal migration channels available to Mexican nationals with little education are based on family petitions and subject to visa quotas which are dwarfed by the demand for entry to the United States; visa approval can take upwards of 20 years for a Mexican national with little education and few resources. Thus, undocumented immigration is a more responsive unskilled labor distribution mechanism than the existing quota-based immigration policy. However, the restrictive legal migration channels and increased costs of undocumented migration are stifling …

Mergers And Acquisitions In Food And Agribusiness: Returns, Drivers, And Long Run Performance, Josiah M. Ringelberg

Open Access Theses

Food and agribusiness in the U.S is a dynamic and ever changing business. The industry has seen booms and busts, considerable consolidation, and continued globalization in the past few decades. Businesses operating within its sectors have had to demonstrate flexibility and adaptability as the industry’s landscape consolidates at the consumer, supplier, and producer level. One strategy companies have used to grow and position themselves throughout years of industry consolidation has been merger and acquisition (M&A) transactions.

During the eleven years from 1985 and 1995, the food industry was listed in the top 10 M&A most active industries ten times. It …