Word: ras
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Other substances in the works may be further from the market, but they are in some ways even more exciting. Several of them take aim at a growth-signaling protein made by a gene called RAS (for rat sarcoma, the cancer in which it was first discovered). In about 30% of cancers, the RAS protein is stuck in an "on" position, mindlessly ordering the cell to divide again and again. It plays a role in 90% of pancreatic cancers, 50% of colon cancers and 25% of lung cancers. Dr. Edward Scolnick discovered the RAS gene in rats while working...
Proctors and RAs...
...most obvious difference between the two systems is age: proctors range from the early 20s to around 30, while RAs are but a year or two older than most first-years. No matter which system a given university uses, administrators say that those few years can make all the difference in the world...
While proctors stress their responsibility is greater than that of RAs and that their age lends them more respect and authority, they are quick to point out they are not a Harvard University Police Department annex. And the Freshman Dean's Office (FDO), which is in charge of the selection, training and administration of the proctor program, also tells proctors to respect the privacy of students...
...instance, while RAs at Cornell are undergraduates, each hall of about 400 residents is supervised by an adult hall director, who typically has a masters degree in counseling, student development, higher education or a related field...