Kawasaki disease (KD) is an acute vasculitis of young children that can be complicated by coronary artery abnormalities. Recent findings suggest that a superantigen(s) may play an important role in stimulating the immune activation associated with the disease, although the origin of this superantigen(s) is unclear. Staphylococcus aureus, isolated from the rectum or pharynx of patients with KD, ...

In this paper, a three-layer GaAs photoconductive semiconductor switch (GaAs PCSS) is designed to withstand high voltage from 20 35 kV. The maximum avalanche gain and minimum on-state resistance of PCSS are 1385 0.58 Ω, respectively, which the highest values reported date. Finally, influence bias on stability analyzed. evaluated calculated. results show that jitter at voltages 30 kV 164.3 ps 10...

كچ ي هد فده و هقباس : هاگشناد تلاسر و مسج تملاس ءاقترا و نيصصختم تيبرت اه يم هعماج ناور دشاب . تسد يارب يباـي تلاسر نيا هب و دمآراك ،ملاس ،قيلا يناصصختم دنناوتب ات ،دنشاب ملاس دياب دوخ نانكراك ،لااو هعماج هب تبسن لوئسم دنيامن تيبرت . نيا زا تيولوا زا نانآ يناور تملاس تيعضو يسررب ور يم يتاقيقحت ياه دشاب . نيـيعت فده اب حرط نيا نا نانمس يكشزپ مولع هاگشناد نانكراك يناور تملاس تيعضو ديدرگ ماج ....

K-Ar dating and 3He/4He 40Ar/36Ar analyses were conducted on samples of hydrothermal quartz from the Thongkai-Ok Au deposit in Vangtat orogenic belt southern Laos to study presence excess argon better understand origin ore-forming fluids. The age two separates yielded apparent dates 1040 1385 Ma. These ages are significantly older than estimated mineralization (~200 Ma) other regional geologic ...

May 2000, Vol. 5, No. 5 1360 1385/00/$ – see front matter © 2000 Elsevier Science Ltd. All rights reserved. PII: S1360-1385(00)01597-1 In plants, the control of cell fate is a central issue during embryo development, meristem function and the transition from vegetative to reproductive phases. The regulation of cell fate requires a balance of cell proliferation, differentiation, intercellular co...