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Animal Sciences Commons

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Articles 1 - 4 of 4

Full-Text Articles in Animal Sciences

Ubiquitin Dependent Proteolysis In The Frozen Wood Frog, Michael Ulrich, Ken Storey, Frank Van Breukelen Aug 2010

Ubiquitin Dependent Proteolysis In The Frozen Wood Frog, Michael Ulrich, Ken Storey, Frank Van Breukelen

Undergraduate Research Opportunities Program (UROP)

Wood frogs (Rana sylvatica) freeze during the winter. One might presume that homeostatic processes like protein synthesis and degradation cease during freezing. However, few data are available. In collaboration with Dr. Ken Storey (Carelton University, Canada), we are investigating the primary mode of proteolysis in wood frogs representing different points of the freeze-thaw cycle.


The Effects Of The Ground Reaction Force On The Muscle-Tendon Systems About Guinea Pig Joints, Theresa Schill, Kevin Mailland, David V. Lee Aug 2010

The Effects Of The Ground Reaction Force On The Muscle-Tendon Systems About Guinea Pig Joints, Theresa Schill, Kevin Mailland, David V. Lee

Undergraduate Research Opportunities Program (UROP)

Each limb of the limb joints of a quadruped is used differently during locomotion, and it is necessary to recognize the mechanical role each plays. The effects of the ground reaction force on the ankle, knee, and hip joints of Hartley albino guinea pigs were studied in uphill, downhill, and level situations to determine the spring-like capacity of the muscle-tendon systems that act about the limb joints.


Impact Of Historical Climate Change On The Genetic Structure Of The Great Basin Pocket Mouse, Perognathus Parvus, Ashwitha Francis, Mallory E. Eckstut, Brett R. Riddle Aug 2010

Impact Of Historical Climate Change On The Genetic Structure Of The Great Basin Pocket Mouse, Perognathus Parvus, Ashwitha Francis, Mallory E. Eckstut, Brett R. Riddle

Undergraduate Research Opportunities Program (UROP)

The dynamics of genetic patterns, such as genetic differentiation within and between populations and the geographic distribution of genetic lineages, are often influenced by historical events (such as climatic changes) that have substantially impacted regional biodiversity (the study of phylogeography; Avise, 20001). The magnitude of genetic differentiation among populations is often increased if suitable habitat is reduced, because there is restricted migration among populations. When migration is restricted, the populations may become genetically differentiated from conspecific populations and, over time, may become independent lineages that follow distinctive evolutionary trajectories (Stebbins, 19523; Nevo & Beiles, 19892; Thomas et al., 19984). In …


3d Micro-Mr And Micro-Ct Models For Determining In-Vivo Function In The Guinea Pig Knee Model Of Osteoarthritis (Oa), Kristoffer W. Dean Aug 2010

3d Micro-Mr And Micro-Ct Models For Determining In-Vivo Function In The Guinea Pig Knee Model Of Osteoarthritis (Oa), Kristoffer W. Dean

Undergraduate Research Opportunities Program (UROP)

Osteoarthritis (OA) is a debilitating disease that affects an estimated 27 million adults in the United States. OA causes damage to cartilage in the joints resulting in bones that rub together. This creates pain, swelling, loss of motion of the joint, and bone spurs. As the number of adults above 65 grows (an estimated 72 million people by 2030) even more people will be at high risk for OA. It is the most common type of arthritis by far yet very little is known about it including relationships between joint structure and function. In 2004, the NIH created the Osteoarthritis …