In this study, water extract of nettle (Urtica dioica L.) (WEN) was studied for antioxidant, antimicrobial, antiulcer and analgesic properties. The antioxidant properties of WEN were evaluated using different antioxidant tests, including reducing power, free radical scavenging, superoxide anion radical scavenging, hydrogen peroxide scavenging, and metal chelating activities. WEN had powerful an...

Anne Chao and Liza Levina reflect on an “extraordinarily brilliant student”.

In the last few decades, heat exchanger networks have been widely adopted to recover thermal energy. Recently, mass exchanger networks have gained attention for recovering useful materials. By analogy, another class of exchanger networks, termed work exchanger networks (WEN’s), is conceivable for recovering mechanical energy. In the present work, the concept of the WEN is introduced. The WEN co...

References: [1] Wen Shen, On the Shape of Avalanches, J. Math. Anal. Appl., 339(2008), 828-838. [2] Debora Amadori and Wen Shen, Global Existence of large BV solutions for a Model of Granular Flow, To appear in Communications in Partial Differential Equations. [3] Debora Amadori and Wen Shen, The Slow Erosion Limit for a Model of Granular Flow, preprint 2008. Available online: www.math.psu.edu/...

Amyotrophic lateral sclerosis (ALS) is an adult-onset neurodegenerative disease characterized by the selective loss of motor neurons. There is no effective treatment or drug against ALS, and the precise mechanisms leading to the selective loss of motor neurons are still unknown. We investigated the effect of a Chinese prescription, Wen-Pi-Tang, on the ALS model mouse SOD1(G93A). Although the or...