There appears to be a stark gender difference when it comes to feeling remorse about sexual experiences, and researchers say evolution may be to blame. Men are more likely to regret not taking action on a potential liaison, and women are more remorseful for engaging in one-time liaisons, new research finds. Evolutionary pressures probably explain the gender difference in sexual regret, says Martie Haselton, a social psychology professor at the University of California, Los Angeles. “For men throughout evolutionary history, every missed opportunity to have sex with a new partner is potentially a missed reproduce opportunity—a costly loss from an evolutionary perspective.” Haselton says. “But for women, reproduction required much more investment in each offspring, including nine months of pregnancy and potentially two additional years of breastfeeding. “The consequences of casual sex were so much higher for women than for men, and this is likely to have shaped emotional reactions to sexual liaisons even today.”
“Jumping the shark is an idiom created by Jon Hein that was used to describe the moment in the evolution of a television show when it begins a decline in quality that is beyond recovery, which is usually a particular scene, episode, or aspect of a show in which the writers use some type of “gimmick” in a desperate attempt to keep viewers’ interest. Its name is taken from a scene from a fifth season episode of the sit-com Happy Days when the character Fonzie jumps over a shark on water-skis. In its initial usage, it referred to the point in a television program’s history when the program had outlived its freshness and viewers had begun to feel that the show’s writers were out of new ideas, often after great effort was made to revive interest in the show by the writers, producers, or network. The usage of “jump the shark” has subsequently broadened beyond television, indicating the moment when a brand, design, or creative effort’s evolution loses the essential qualities that initially defined its success and declines, ultimately, into irrelevance.”
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For those with humanistic and artistic life interests, our economic system has almost nothing to offer
“Crisis” and “decline” are the words of the day in discussions of the humanities. A primary stimulus for the concern is a startling factoid: only 8 percent of undergraduates major in humanities. But this figure is misleading. It does not include majors in closely related fields such as history, journalism and some of the social sciences. Nor does it take account of the many required and elective humanities courses students take outside their majors. Most important, the 8 percent includes only those with a serious academic interest in literature, music and art, not those devoted to producing the artistic works that humanists study..
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Behaviour can be affected by events in previous generations which have been passed on through a form of genetic memory, animal studies suggest.
Experiments showed that a traumatic event could affect the DNA in sperm and alter the brains and behaviour of subsequent generations.
A Nature Neuroscience study shows mice trained to avoid a smell passed their aversion on to their “grandchildren”.
Experts said the results were important for phobia and anxiety research.
The animals were trained to fear a smell similar to cherry blossom.
The team at the Emory University School of Medicine, in the US, then looked at what was happening inside the sperm.
They showed a section of DNA responsible for sensitivity to the cherry blossom scent was made more active in the mice’s sperm.
Both the mice’s offspring, and their offspring, were “extremely sensitive” to cherry blossom and would avoid the scent, despite never having experiencing it in their lives.
Changes in brain structure were also found.
"The experiences of a parent, even before conceiving, markedly influence both structure and function in the nervous system of subsequent generations," the report concluded.
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Amazon, the world’s largest online retailer, is testing unmanned drones to deliver goods to customers, Chief Executive Jeff Bezos says. The drones, called Octocopters, could deliver packages weighing up to 2.3kg to customers within 30 minutes of them placing the order, he said. However, he added that it could take up to five years for the service to start. The US Federal Aviation Administration is yet to approve the use of unmanned drones for civilian purposes. “I know this looks like science fiction, but it’s not,” Mr Bezos told CBS television’s 60 Minutes programme. “We can do half-hour delivery… and we can carry objects, we think, up to five pounds (2.3kg), which covers 86% of the items that we deliver.” (via BBC News - Amazon testing drones for deliveries)