Deciphering the myriad ways in which proteins interact with each other to give rise to complex behaviors that define living systems is a significant challenge. Using perturbations of DNA, genetic analyses have provided many insights into the functions of proteins encoded by specific genes. However, it can be difficult to study essential genes using these approaches, and many biological processe...

There has been increasing interest in the normal blood pressures of isolated and unsophisticated communities in the last few years. In particular, several investigators have questioned whether the rise in blood pressure with increasing age which appears to be common to all "Western" peoples is universal for mankind, and they have suggested that this rise is due to the occurrence among Westerner...

Shortages of prescription generic drugs have recently made headlines in Canada and elsewhere. The causes and possible solutions for these shortages are still unclear. With the failure of "market forces," has the time come to establish a Crown corporation to ensure the supply of essential drugs?

概要 二 次的栓球 増多を きたす 明 らか な原因疾患が な く,著 明 な持続的栓球増 多 と血栓 お よび出血 傾 向を示す疾患 は,1920年Diguglielmoがpiastrinemiaと して報 告 したのを は じめ として,い ろいろな 名称 を冠 した本症 の報告 が散見 され る.著 者 らは,64才 の男子 で,本 症 と診断 され る1例 を 経験 し た.本 症例 は,両 側足趾 に次 々 と疼痛 ・壊死が出現 し,時 に,鼻 出血 ・歯 肉出血 をみ た.末 梢血 中の 栓球数は ほ とん ど常 に100万/mm3を 越 え,最 高238万/mm3に 達 し,軽 度 の貧血 と白血球増 多を伴つ た.骨 髄所見 では,骨 髄 巨核球が237/mm3と 増加 し,ま た,栓 球生成能 の亢進が示唆 された.し か し,赤 ・白血球系細胞 には異常 をみ な...

age by computing the essential matrix. Unlike the stereo vision case, this method gives a solution without any scale ambiguity, if used with a 3-D model and an image, instead of two images. Moreover, the attitude estimation is very robust even in the case of small optical fields. This measurement is fed into a recursive motion estimator, which gives the current and the predicted values and deri...