منابع مشابه
IDSA update from the city of brotherly love.
Data from a major new trial called START II (Selection of Thymidine Analog Therapy), was presented at this year's Infectious Diseases Society of America (IDSA) conference. One trial compared d4T/ddI/IDV combination therapy with AZT/3TC/IDV in treatment-naive individuals. A second trial, CNA 3003, compared triple NRTI therapy with AZT/3TC/abacavir to dual therapy with AZT/3TC; patients who added...
متن کاملIn the Quest for Love, Costs vs. Benefits
IS love for sale? Maybe not quite as directly as sex is, but economists believe that the quest for a romantic partner obeys essentially the same cost-benefit logic that governs every other market. Economists may seem soulless, unlikely guides to affairs of the heart. But " Dollars and Sex, " a delightful book by Marina Adshade, an economist at the University of British Columbia, may convince yo...
متن کاملMating Opportunities in Sangalopsis veliterna Females: Costs and Benefits
In nature, females of several animal taxa exhibit considerable variation in their mating system, and this variation involves different balances of costs (e.g., energetic, reproductive) and benefits (e.g., increased net reproductive rate of the female, increased longevity). Many studies have focused on discovering the potential advantages and disadvantages that females could have when increasing...
متن کاملGenetic benefits enhance the reproductive success of polyandrous females.
Although it is generally accepted that females can gain material benefits by mating with more than one male, the proposal that polyandry provides genetic benefits remains controversial, largely because direct experimental support is lacking. Here, we report the results of a study testing for genetic benefits to polyandry in the pseudoscorpion Cordylochernes scorpioides. In an experiment that co...
متن کاملLove makes smell blind: mating suppresses pheromone attraction in Drosophila females via Or65a olfactory neurons
In Drosophila, the male sex pheromone cis-vaccenyl acetate (cVA) elicits aggregation and courtship, through the odorant receptor Or67d. Long-lasting exposure to cVA suppresses male courtship, via a second channel, Or65a. In females, the role of Or65a has not been studied. We show that, shortly after mating, Drosophila females are no longer attracted to cVA and that activation of olfactory senso...
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ژورنال
عنوان ژورنال: Nature
سال: 2014
ISSN: 0028-0836,1476-4687
DOI: 10.1038/nature12853