AIDS research: who should hold the purse strings?

Who should hold the keys to your DNA?

Research Report Heart Strings and Purse Strings Carryover Effects of Emotions on Economic Decisions

We examined the impact of specific emotions on the endowment effect, the tendency for selling prices to exceed buying or “choice” prices for the same object. As predicted by appraisaltendency theory, disgust induced by a prior, irrelevant situation carried over to normatively unrelated economic decisions, reducing selling and choice prices and eliminating the endowment effect. Sadness also carr...

Who should provide research initiative and support?

The study of low dose environmental exposure is a major concern for epidemiologists. The problem is a special example of a common source epidemic with either single or continuous exposure. Usually the most common source investigations begin with an epidemic, cluster of cases. However, environmental studies often start with an exposure that is considered to be potentially hazardous and a search ...

Crawling Cells Can Close Wounds without Purse Strings or Signaling

When a gash or gouge is made in a confluent layer of epithelial cells, the cells move to fill in the "wound." In some cases, such as in wounded embryonic chick wing buds, the movement of the cells is driven by cortical actin contraction (i.e., a purse string mechanism). In adult tissue, though, cells apparently crawl to close wounds. At the single cell level, this crawling is driven by the dyna...

Who should direct WHO?

ast week, member states of the World Health Organization (WHO) advanced another step in the nearly 1-year rigorous process of selecting its next director-general. Candidates for the position presented their vision of international health work and the role of this global health body. Having worked at WHO in a number of capacities in the area of infectious diseases, I know well that international...