Air conditioning in cars cuts out more than 80 percent of germs, fungal spores and particles from outside air, providing a boon for people with respiratory problems or allergies, German scientists say.
Cell & Microbiology
May 17, 2009
0
0
(Phys.org)—It's strange to think that there was a time when molecular cell biology was considered by professionals of other scientific specialties as disreputable or laughable. But the motivation for much cellular biology ...
Early in mammalian embryonic development, long before the organism's ultimate form has taken shape, a precious subset of its cells are set aside for future use in creating offspring. This task bestows on that subset of cells ...
Molecular & Computational biology
Nov 22, 2019
0
70
The transition from colonies of individual cells to multicellular organisms can be achieved relatively rapidly, within one million generations, according to a new mathematical model, published June 10 in the open-access journal ...
Evolution
Jun 10, 2010
45
1
Building on previous efforts to create a platform for the extended study of primate embryos in cell culture, two new reports from the State Key Laboratory of Primate Biomedical Research, Kunming University of Science and ...
Life begins with an egg and a sperm: that much is clear. But how do these "germ cells" form, and how do they pass genetic traits from one generation to the next?
Cell & Microbiology
Sep 16, 2015
6
12
(PhysOrg.com) -- Germs in food, bioterrorism, drug-resistant bacteria and viruses—these are the problems of our time that make early detection of pathogens particularly important. Whereas conventional methods are either ...
Analytical Chemistry
Apr 7, 2011
0
0
(Phys.org)—Raising the temperature is one easy way to get chemical reactions to speed up. This temperature dependence can be accurately described by a simple exponential relation known as the Arrhenius equation. A commonly ...
Scientists have shown how the precursors of egg and sperm cells – the cells that are key to the preservation of a species – arise in the early embryo by studying pig embryos alongside human stem cells.
Cell & Microbiology
Jun 8, 2017
0
12
Ribosomal DNA (rDNA) sequences are essential parts of many species' genomes. The highly repetitive nature of these DNA sequences makes them susceptible to shrinkage over time—and if they shrink too much, cells die. If rDNA ...
Cell & Microbiology
Jun 1, 2023
0
55
