Search
Now showing items 1-10 of 308
Fate and transport of persistent tetracycline residues in the environment
(2007)
Tetracycline antibiotics from human and veterinary use can enter the environment through the land-application of sewage sludge and/or animal manure that are used as soil conditioners. There has been an increased concern ...
The study and analysis of heterogeneity correction algorithms used in the delivery of step and shoot and sliding window IMRT
(2007)
The accuracy of tissue heterogeneity dose correction algorithms for IMRT delivery using step and shoot and sliding window techniques is studied. A solid water phantom incorporating a lung equivalent heterogeneity layer was ...
Mass spectrometry of gas phase cluster ions between acid and water
(2007)
When an analyte seeded in a high pressure inert gas is expanded into a vacuum chamber, an intense beam of molecular clusters is formed. The consequential skimming and ionization of the cluster beam allows for the analysis ...
Vitamin C and collagen IV formation in fibroblasts
(2007)
Collagen IV (Col4) is a major component of vascular basement membranes (BM). Mice expressing mutated Col4 died shortly after birth with cerebral hemorrhage. Mice lacking the ubiquitous vitamin C (Asc) transporter SVCT2 ...
Liquid chromatography and capillary electrophoresis methodologies for the analysis of biological samples
(2007)
Separation techniques such as capillary electrophoresis and liquid chromatography have found application in the analysis of biological samples. In capillary electrophoresis charged species are separated based on their mass ...
Molecular mechanisms regulating DeltaNp63 expression and function during development and differentiation of mouse skin keratinocytes
(2007)
The skin is a multilayered stratified epithelium providing a protective barrier against dehydration and pathogenic insult. The transcription factor p63 plays an important role in the development of stratified epithelium ...
Bisphosphonates in the control of biomineralization: An in vitro study of apatite zeta potential and growth inhibition
(2007)
Over the last 30 years, bisphosphonates (BP) have been shown to be extremely effective in the treatment of bone diseases characterized by excessive bone resorption, such as osteoporosis. The structure of these nonhydrolyzable ...
New generation chemical and biochemical sensors
(2007)
Chemical and biochemical sensors have become a valuable tool for the detection and quantification of a multitude of analytes. The ideal sensor and sensor system should be portable, inexpensive, easily fabricated, stable, ...
Magnetism and magnetotransport of magnetic nanoparticle arrays
(2007)
As the size of particles scales down to nanometer regime, the physical properties are totally different from bulk counterparts. In magnetic materials, magnetic properties show strong size dependence, originating from finite ...
Enhancement of the low frequency sound absorption of porous materials by addition of a thin high flow-resistivity cover layer
(2007)
The general performance of a porous material against a rigid backing shows very good absorption qualities at high frequencies, but at lower frequencies, where the thickness becomes much less than a wavelength of sound, the ...