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Full-Text Articles in Biological and Physical Anthropology
An Investigation Into Peak Limb Compliance In College Sprinters, Lilian Sahibdeen
An Investigation Into Peak Limb Compliance In College Sprinters, Lilian Sahibdeen
Anthropology
During running, the limb acts as a mechanical spring where it compresses and recoils to release elastic potential energy with each ground contact. Maintaining maximal running speed is particularly important during sprinting. Individuals with stiffer limb springs are more efficient because of this. Limb stiffness can be calculated using Hooke’s law (k=F/ ΔL), where k is the spring constant, F is the peak ground reaction force, and ΔL is the change in hip height between the initiation of limb contact and the middle stance phase. Many factors contribute to limb stiffness and this study examines how stiffness variers with contact …
Error Rates In Sex Determination Of Human Skeletal Remains, Vanessa Slone
Error Rates In Sex Determination Of Human Skeletal Remains, Vanessa Slone
Anthropology
The possible fallibility of forensic methods has been under scrutiny for over a decade. Left out of the initial reviews were methods within forensic anthropology. A literature review was conducted to examine modern methods in determining the biological sex of human skeleton remains and their associated error rates in making a correct determination. Results showed no significant correlation between the number of traits being considered the subsequent error rate in determining sex. The skull was shown to be the least accurate in determining biological sex with the pelvis showing the lowest rate of error. Finally, between regression line-based methods and …
Hippocampal Extracellular Potassium Levels And Formation Of Spatial Memory In Response To Retrodialysis Insulin Administration, Gabrielle Shames
Hippocampal Extracellular Potassium Levels And Formation Of Spatial Memory In Response To Retrodialysis Insulin Administration, Gabrielle Shames
Anthropology
Insulin is the most common treatment for hyperglycemia, such as that caused by type 1 or type 2 diabetes mellitus. Insulin causes cellular uptake and storage of glucose to maintain homeostasis and also plays important roles in other systems; an important example is regulation of potassium. In the periphery, insulin administration has been shown to increase the cellular uptake of potassium via Na+/K+ ATPase, leading to hypokalemia. Research in our lab and others has shown that insulin is a key regulator of cognitive function and local metabolism within the hippocampus. To date, however, no studies have examined whether insulin acts …
Rack1 Facilitates Efficient Translation Of Viral And Cellular Iress, Natasha Permaul
Rack1 Facilitates Efficient Translation Of Viral And Cellular Iress, Natasha Permaul
Anthropology
Ribosomes, the cellular machinery that translates mRNA sequences into protein sequences, are surprisingly heterogeneous molecules. More and more ribosomal proteins have been shown to facilitate translation of mRNA subsets. These mRNA subsets include mRNAs that can initiate translation using non-canonical pathways, for example using an internal ribosome entry site (IRES). IRESs are RNA structures that facilitate translation with fewer translation initiation factors than are required for canonical cap-dependent translation initiation. The ribosomal protein Receptor for Activated C Kinase 1 (RACK1) has been previously shown to be required for translation of the hepatitis C virus (HCV) IRES, but not required for …