In the early 1950s, experiments by two teams of researchers, Salvador Luria working with Mary Human and Joe Bertani working with Jean Weigle, showed that some strains of bacteria were more resistant ...

Restriction factors are cell-intrinsic genes expressed by the host that limit virus replication. Restriction factors are characterized by the rapid evolution of their coding sequences (under positive ...

Calorie restriction—in which people give up food for a whole day or drastically slash their caloric intake for a spell—is an unpleasant-sounding eating pattern. Yet a growing body of science suggests ...

Scientists first observed the biological phenomenon of restriction and modification in the 1950s, but they did not identify and isolate restriction enzymes until the late 1960s. 3 In 1970, Hamilton ...

Forget about super-sizing, a restricted-calorie diet may add health, youthfulness, and longevity to your life. 7 min read Looking to tack a few years on to the end of your life, or enjoy your golden ...

New research from Murdoch University's School of Allied Health and Health Futures Institute has found that wearing blood flow ...

Self-blame is one of the strongest psychological engines of eating disorders. Guilt, rather than appearance goals, often shapes symptoms and recovery.

There are multiple ways a thermostatic expansion valve (TXV) can become restricted. Remember that a TXV becoming partially restricted will have the same symptoms as a restriction anywhere in the ...

Refrigerant circuit restrictions can be common things like a plugged filter drier or a restricted metering device. They can also be more difficult to diagnose and exotic issues like a kinked liquid ...