Results from a study published on Jan. 2 in Science defy textbook science, showing for the first time that the building blocks of a protein, called amino acids, can be assembled without blueprints – DNA and an intermediate template called messenger RNA (mRNA). A team of researchers has observed a case in which another protein Read more about new role for proteins: assembling amino acids without DNA and RNA[…]
The researchers, from the Johns Hopkins University School of Medicine in Baltimore, analyzed published scientific papers to identify the number of stem cells, and the rate of stem-cell division, among 31 tissue types, though not for breast and prostate tissue, which they excluded from the analysis. Then they compared the total number of lifetime stem-cell Read more about Besides Lifestyle and Inherited Genes, Cancer Risk Also 66% Tied to Bad Luck[…]
America’s $400 billion Joint Strike Fighter, or F-35, is slated to join fighter squadrons next year—but missing software will render its 25mm cannon useless. The Pentagon’s newest stealth jet, the nearly $400 billion Joint Strike Fighter, won’t be able to fire its gun during operational missions until 2019, three to four years after it becomes Read more about F-35 Can’t Fire Its Gun Until 2019 – And even then hardly[…]
Current US law extends copyright for 70 years after the date of the author’s death, and corporate “works-for-hire” are copyrighted for 95 years after publication. But prior to the 1976 Copyright Act (which became effective in 1978), the maximum copyright term was 56 years—an initial term of 28 years, renewable for another 28 years. Under Read more about What Could Have Entered the Public Domain on January 1, 2015?[…]