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Diversity of progeny from a single colony of Salmonella typhimurium after 19 months in sealed agar stabs
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
Recent studies at the Cancer Research Center revealed numerous mutations in Salmonella typhimurium that had been sealed in agar stab vials and stored for over forty years. The bacteria that were conserved in over 20,000 vials were all progeny...
Storing hydrogen, by enhancing diamond powder properties with CaF2 and KF for use in fuel cells
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
. In an effort to develop a better hydrogen storage system for fuel cells technology this research investigates the use of 99% pure diamond powder for storing hydrogen. Mixing this powder with a calcium fluoride and potassium fluoride compound in its solid form...
Host-guest complexes to molecular encapsulation of hydrogen
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
applications of this host-guest system could be the purification and storage of hydrogen for use in fuel cell. The nanoscale systems are a leading development strategy in many research areas. General advantages are the ability of saving time, space, costs...
Does genetics play a role in feeding behavior of gray tree frogs?
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
found that offspring of long-calling males have a performance advantage over the offspring of short-calling males. This research focuses on the feeding habits of H. versicolor tadpoles in an attempt to understand the contribution of paternal genetic...
Progress in the synthesis of a Technetium-labeled complex as a potential Sigma receptor binding ligand
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
this subtype. Non-invasive imaging of the sigma receptor in vivo would lead to a better understanding of the role that sigma receptors play in health and disease. Technetium-99m (Tc-99m) is the most commonly employed imaging radionuclide. This research project...
Molecular free volume and viscosity changes in non-Newtonian fluids probed with molecular rotors
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
rotors, a sensitivity towards fluid flow (Haidekker MA et al, Sensor Lett. 2005; 3: 42-8), was exploited to observe shear-thinning behavior by probing flow velocity in a tube. Under application of sufficiently high shear rates to cause shear thinning...
The relation of childhood depressive symptoms to behavior during a speech task
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
This study examined the relation of child depressive symptoms to their observed behaviors during a speech performance task. Previous work (Mavers & Bell, 2005) has demonstrated that children's anxiety was related to several observed difficulties...
Reduction of rhenium (V) oxo Schiff Base Complexes with triphenyl phosphine ligands
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
One approach to the treatment of cancer is to direct beta-emitting radionuclide to the cancer site where the radiation destroys the cancer cells. This can be achieved by coordinating the radioisotope in a very stable environment and linking it to a...
Parameter estimation and data reduction for cellular biophysical analysis
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
Accurate estimation of cellular permeability parameters are an important part of designing and developing optimized cryopreservation protocols. Electronic Particle Counters measure cell volume by detecting changes in ...
L-NAME treatment in pigs
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
Nω-nitro-L-arginine-methyl-ester (L-NAME) inhibits the enzyme nitric oxide synthase (NOS) which generates the physiologic messenger gas, nitric oxide (NO). In addition to its role as a vasodilator NO inhibits inflammation ...
Epithelial-mesenchymal transition of brain tumor cells is differentially regulated in response to dexamethasone
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
In the epithelial-mesenchymal transition of tumors, the loss of cohesivity and the migratory capability of cells determine the invasiveness and therefore the malignancy of the cancer. Understanding these biophysical ...
Membrane permeability of Bovine Ooctyes to Propylene Glycol and the application to the improvement of Cryopreservation
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
In this study, the goal was to determine the permeability parameters of bovine oocytes for water (Lp) and Propylene Glycol (PPG) at temperatures of 30, 20, 10, and 5°C. By determining permeability parameters, we can model ...
Analysis of PDGF-AB and -BB in serum of intact and ovariectomized (OVX) pigs
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
Previous studies in our group demonstrated that terminal microvascular networks in dura mater of ovariectomized (OVX) pigs undergo significant remodeling characterized by a decrease in microvessel density, capillary ...
A century later another surprise: A non-visual behavioral function of the white gene
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
Discovery of the white mutation in Drosophila melanogaster has broadly influenced our understanding of the mechanisms of inheritance. We recently discovered a role of the white gene in memory formation. Thus, the white ...
Construction of a knockout targeting vector to generate an Interleukin-13 Receptor α1 deficient Balb/c mouse
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
A recent publication from our lab has provided evidence for the involvement of the α1 chain of the Interleukin-13 cytokine receptor (IL-13Rα1) in the development of the neonatal immune system. Specifically, we have shown ...
Characterizing polymerization dynamics using fluorescent molecular rotors and magnetoelastic sensors
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
The dynamics of polymerization are critical in many medical applications; for instance, polymers used to fill aneurysms must be timed accurately. Two distinct methods were examined for their ability to probe the polymerization ...
Aβ toxicity to SHSY-5Y human neuroblastoma cells
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
Alzheimer's disease (AD) is a progressive neurodegenerative disorder that results in the loss of memory, language deterioration, confusion, restlessness, and eventually destroyed cognition. It is characterized by an ...
The effect of caloric restriction on the mitotic rates of mice
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
Caloric restriction has been shown to cause a number of biological changes in animals including the retardation of the aging process. Calorically- restricted animals show an average increase in life span of 30 - 50 %. In ...
Effect of clearcutting on the habitat within the clearcut and the surrounding forest and its relationship to the presence of wood thrush (Hylocichla mustelina) in the Current River Conservation Area
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
Wood thrush were one of the few species of forest birds that increased in density on sites that received even-aged management as part of the Missouri Ozark Forest Ecosystem Project (MOFEP). One hypothesis is that this may ...
Evaluation of the efficacy of test products to ameliorate the toxic effects of aflatoxin present in broiler chick diets
(University of Missouri--Columbia. Office of Undergraduate Research, 2005)
An in vivo study was conducted to evaluate the efficacy of several adsorbent test products to ameliorate the toxic effects of aflatoxin B1 (AFB1) in chicks. Ninety day-old straight run chicks were purchased from a commercial ...