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Showing posts with label PhysOrg. Show all posts
Showing posts with label PhysOrg. Show all posts

Sunday, March 04, 2012

Upper class people more likely to cheat: study


In two field studies on driving behavior, upper-class motorists were found to be four times more likely than the other drivers to cut off other vehicles at a busy four-way intersection and three times more likely to cut off a pedestrian waiting to enter a crosswalk. Another study found that upper-class participants presented with scenarios of unscrupulous behavior were more likely than the individuals in the other socio-economic classes to report replicating this type of behavior themselves.

Participants in the fourth study were assigned tasks in a laboratory where a jar of candy, reserved for visiting children, was on hand, and were invited to take a candy or two. Upper-class participants helped themselves to twice as much candy as did their counterparts in other classes.

In the fifth study, participants each were assigned the role of an employer negotiating a salary with a job candidate seeking long-term employment. Among other things, they were told that the job would soon be eliminated, and that they were free to convey that information to the candidate. Upper-class participants were more likely to deceive job candidates by withholding this information, the study found.

In the sixth study, participants played a computerized dice game, with each player getting five rolls of the dice and then reporting his or her scores. The player with the highest score would receive a cash prize. The players did not know that the game was rigged so that each player would receive no more than 12 points for the five rolls. Upper-class participants were more likely to report higher scores than would be possible, indicating a higher rate of cheating, according to the study.
From Physorg.com. Here

Sunday, November 13, 2011

Protein love triangle key to crowning bees queens?


A honey bee becomes a royal queen or a common worker as a result of the food she receives as a larva. While it has been well established that royal jelly is the diet that makes bees queens, the molecular path from food to queen is still in dispute. However, scientists at Arizona State University, led by Adam Dolezal and Gro Amdam, have helped reconcile some of the conflicts about bee development and the role of insulin pathways and partner proteins. Their article "IIS and TOR nutrient-signaling pathways act via juvenile hormone to influence honey bee cast fate" has been published in the December issue of the Journal of Experimental Biology.

Central to the dispute within the scientific community about "who would be queen" has been a ground-breaking study published in the journal Nature by Japanese scientist Masaki Kamakura in 2011. He found that a single protein in royal jelly, called royalactin, activated queen development in larval bees through interaction with an epidermal growth factor receptor (EGFR). Kamakura's work suggested that insulin signals do not play a role in queen development, despite previous studies suggesting otherwise, including work pioneered with the insulin receptor protein by Amdam's group.
From PhysOrg. Here

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