Bradley Haynes and Stark Michael, Physiology and Developmental Biology Introduction Both Wnt signaling and neural crest cells (NCCs) have a well-established role in the development of facial bones and cartilage. Wnt signaling is known to be required for neural crest cell formation; however, Wnt expression originating from the neural crest after their specification by Wnt1 […]
Search Results for: role
The Role of Subtelomeric Silencing in Aging
Mark Roth and Jonathan Alder, PhD PDBio Introduction Telomeres, located at the ends of chromosomes, are repetitive DNA sequences composed of TTAGGG repeated thousands of times. Each time a cell copies its DNA a small amount of telomeric DNA is lost due to the end replication problem. Because of this, telomeres are eventually lost. New […]
Role of Reactive Oxygen Species in Methamphetamine Modulation of Dopamine Release in the Nucleus Accumbens
Tyler Ekins and Scott Steffensen, Psychology Introduction Methamphetamine (METH) abuse is a problem that continues to cause much harm across the United States. The cost of METH use in 2005 alone was estimated to be 23.4 billion dollars (Nicosia et al., 2009). Other societal costs of METH abuse include suicide attempts, premature death, increased health […]
The Role of First Language Accent on German Vowel Perception
Erik Arnold and Laura Catharine Smith, Germanic and Slavic Languages Introduction The role of accent in second language (L2) production and perception has been acknowledged by researchers, but generally only in the sense of limiting their subjects to a specific dialect region to avoid any dialect influence on their results. Some studies have, however, investigated […]
Unfulfilled Expectations: The Role of Translation in the Influence and Reception of João Guimarães Rosa in the United States
Cai Olsen and Dr. James R. Krause, Department of Spanish and Portuguese Introduction João Guimarães Rosa (1908-1967) was a contemporary Brazilian author whose works were translated into a number of languages and sold throughout the world. Known for writing the great novel Grande Sertão: Veredas, Rosa was well-received in nearly all of the countries where […]
Religion’s Role in Parent to Child Political Socialization
Madison Dayton Daines and Quin Monson, Department of Political Science Introduction I believe that the religion a person was socialized in has lingering affects on his or her political values. Parents play the most prominent role in the political direction of their children both early in life and up through young adulthood (Niemi and Jennings […]
Role of ROS (reactive oxygen species) on cocaine-induced DA release in the NAc
Jacqueline Solomon and Dr. Scott Steffensen, College of Family, Home, and Social Science Introduction: Cocaine as a stimulant drug causes Dopamine (DA), a neurotransmitter, to be released in the Accumbens Nucleus (NAc). It accomplishes this by its well-known actions on the DA transporter (DAT). When the DAT is blocked, more DA stays in the synaptic […]
The Role of α6 Nicotinic Acetylcholine Receptors on Dopamine Release
Michaela Squire and Dr. Scott Steffensen, Psychology Introduction With today’s society’s alcohol abuse, there has been a large economic burden of several hundred billion dollars annually. In addition, 80% of those who are dependent on alcohol are also smokers, and the use of nicotine has remained relatively high in those who use alcohol, displaying the […]
Understanding the Role of Estrogen in the Mucosal Immune Response
Youna Choi and Dr. Eric Wilson, Microbiology and Molecualr Biology Introduction Most antigens (foreign substances) enter an organism via mucosal surfaces. Thus, understanding the mechanisms involved in immune protection at these surfaces is of paramount importance. Immune responses are highly dependent on homing mechanisms responsible for directing lymphocyte (white blood cell) migration and accumulation at […]
The Role of Endocannabinoid Receptor GPR55 on Learning and Memory
Bradley Prince and Jeffery Edwards, PDBIO Each year millions of people are affected by Alzheimer’s disease, one of the most common forms of dementia. Extensive research has shown that Alzheimer’s affects the hippocampus, the part of the brain principally responsible for learning and memory. The mechanisms responsible for learning and memory are just beginning to […]
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