Volume 8 Issue 10 - May 22, 2009
Articles Digest

Research Express@NCKU May 22 ~ May 28, 2009

RSS

Electrospinning of Polyacrylonitrile Solutions at Elevated Temperatures
Chi Wang

Electrospinning is a powerful technique to prepare polymer nano-fibers. A solution delivery system, a pendent drop with Taylor-cone meniscus, high electric field and a grounded collector, are involved in the electrospinning processes. The prerequisite for fiber formation is the presence of sufficient chain-entanglement density in the working solution to develop a deformable network, ...

read more ...

Pregnane X receptor polymorphism affects CYP3A4 induction via a ligand-dependent interaction with steroid receptor coactivator-1
Jin-ding Huang

Drugs are metabolized by cytochrome P450, a large enzyme family.  The most important Cytochrome P450 in human is CYP3A4.  The metabolism by CYP3A4 increases along the use of some drugs, for example refampicin.  This is called drug induction.  Drug induction seems to be an important defense mechanism of human body, but causes therapeutic failure in disease.

The nuclear receptor PXR is an ...


read more ...

Observation of Retardation Effect via Current Noise
Yueh-Nan Chen

The question on the speed of light had long been an important issue for both scientists and philosophers. Kepler and Descartes thought that the speed of light is infinite, while Galileo thought its speed is finite. Of course, we now all know that the speed of light is roughly equal to 3×108 m/s. But, in experiment, how the light speed is measured? The first attempt was made by ...

read more ...

Skeleton Extraction by Mesh Contraction
Tong-Yee Lee

Curve-skeleton is a very useful 1D structure to abstract the geometry and topology of a 3D object. Extraction of curve-skeletons is a fundamental problem in computer graphics, visualization, image processing and computer vision. There many useful applications including virtual colonoscopies, collision detection, computer animation, surface reconstruction and shape matching etc. ...

read more ...

Induction of autophagy by Concanavalin A and its application in anti-tumor therapy
Huan-Yao Lei

Liver cancer is the fifth most important cancer worldwide, and is the second cancer mortality in Taiwan. The major causes for hepatocellular carcinomas (HCC) are infection of hepatitis B, and C virus. The chronic active hepatitis is recognized as the major risk factor for HCC, and is accompanied by liver cell necrosis, inflammation, cytokine abnormal synthesis and fibrosis. ...

read more ...
  Font Normal   Font Enlarge

Go to archive
Copyright National Cheng Kung University