Diana Roberts

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Few individuals have had the lasting impact on such a breadth of science as Charles Darwin. While his writings about time aboard the HMS Beagle, his study of the Galapagos islands (geology, fauna, and flora), and his theories on evolution are well known, less appreciated are his studies on plant growth responses to a variety of environmental stimuli. In(More)
The effect of aging was examined on cholinergically mediated contractions and acetylcholine (ACh) release in isolated colonic segments from Fischer (F344 x BN) F1 rats, 4-8 mo (postpubertal) and 22-28 mo (senescent) of age. This species demonstrates age-dependent slowing of colonic transit. Muscle tension response to electrical stimulation of cholinergic(More)
Immune cells display multiple cell surface receptors that integrate signals for survival, proliferation, migration, and degranulation. Here, immunogold labeling is used to map the plasma membrane distributions of two separate receptors, the N-formyl peptide receptor (FPR) and the high-affinity IgE receptor (FepsilonRI). We show that the FPR forms signaling(More)
INTRODUCTION Alaska Native colorectal cancer (CRC) incidence and mortality rates are the highest of any ethnic/racial group in the United States. CRC screening using guaiac-based fecal occult blood tests (gFOBT) are not recommended for Alaska Native people because of false-positive results associated with a high prevalence of Helicobacter pylori-associated(More)
  • Reynaldo Moreno Uclés, Pedro Sula, Reynaldo Moreno, Carmen Suyapa, Uclés de Moreno, Karen Suyapa +25 others
  • 2012
DEDICATION This thesis is dedicated to my parents Reynaldo Moreno and Carmen Suyapa Uclés de Moreno who provided their never-ending support, love, inspiration, encouragement to achieve my goals in life, and their efforts to provide me with the best preparation and education possible. Likewise, I extend this dedication to my sisters Karen Suyapa, and Gina(More)
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