164 BC - Judah Maccabee, son of Mattathias of the Hasmonean dynasty, restores the Temple in Jerusalem. This event is commemorated in the Jewish faith each year by the festival of Hanukkah.
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In the News
More Arrests as Protesters Await Ferguson Grand Jury Decision
Russia Warns US Against Arms to Ukraine as Biden Due in Kiev
Egypt Arrests Brotherhood Leader as Crackdown Intensifies
Obama Unveils US Immigration Reform
A New Pathway to Reach Totally Carbon-Free Hydrogen Fuel
Russia Warns US Against Arms to Ukraine as Biden Due in Kiev
Egypt Arrests Brotherhood Leader as Crackdown Intensifies
Obama Unveils US Immigration Reform
A New Pathway to Reach Totally Carbon-Free Hydrogen Fuel
Quote of the Day
"In the long run of history, the censor and the inquisitor have always lost. The only sure weapon against bad ideas is better ideas". --Alfred Whitney Griswold
Song of the Day
Film of the Day
Director - Satyajit Ray
Starring - Soumitra Chatterjee, Sharmila Tagore
Wiki of the Day
A biofilm is any group of microorganisms in which cells stick to each other on a surface. These adherent cells are frequently embedded within a self-produced matrix of extracellular polymeric substance (EPS). Biofilm extracellular polymeric substance, which is also referred to as slime (although not everything described as slime is a biofilm), is a polymeric conglomeration generally composed of extracellular DNA, proteins, and polysaccharides. Biofilms may form on living or non-living surfaces and can be prevalent in natural, industrial and hospital settings.[2][3] The microbial cells growing in a biofilm are physiologically distinct from planktonic cells of the same organism, which, by contrast, are single-cells that may float or swim in a liquid medium.
Microbes form a biofilm in response to many factors, which may include cellular recognition of specific or non-specific attachment sites on a surface, nutritional cues, or in some cases, by exposure of planktonic cells to sub-inhibitory concentrations of antibiotics.[4][5] When a cell switches to the biofilm mode of growth, it undergoes a phenotypic shift in behavior in which large suites of genes are differentially regulated.[6]
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