Study casts doubt on 'Snowball Earth' theory
Remains of photosynthesizing microbes in prehistoric rocks suggest Earth was not ice-bound The study appears in the Sept. 29 Science Express. The lead author is Alison Olcott, a Ph.D. student of earth...Free-energy theory borne out in large-scale protein folding
In unprecedented new research, scientists at Rice University have combined theory and experiment for the first time to both predict theoretically and verify experimentally the protein-folding dynamics of a large, complex protein. "Researchers have succ...New evidence supports century-old theory of cancer spread
A Yale School of Medicine study in the December issue of Lancet Oncology challenges mainstream oncology researchers to consider tumor cell hybridization with white blood cells as a major reason that cancer metastasizes or spreads to other parts of the body. "Cancer cells exhibit a remarkable number of traits normally attributed to white blood cells known as macrophages, including the abili...Pitt professor's theory of evolution gets boost from cell research
An article by University of Pittsburgh Professor of Anthropology Jeffrey H. Schwartz and University of Salerno Professor of Biochemistry Bruno Maresca, published Jan. 30 in the New Anatomist journal, shows that the emerging understanding of cell structure lends strong support to Schwartz's theory of evolution, originally explained in his seminal work, Sudden Origins: Fossils, Genes, and the Emerg...Ernst Mayr's theory illustrated in genetic epidemiology studies
The late, famed evolutionary biologist Ernst Mayr's theory of genetic revolution , introduced in 1954, remains controversial to this day and has many detractors. Mayr believed that genes interacted with one another, and that this genetic interaction in turn led to an interaction of natural selection with genetic drift that could cause genetic revolution ?new directions of evolutionary ch...Neutral theory of molecular evolution
. Although the theory was received b...Marijuana 'gateway' theory strengthened by study of twins
A new study of 311 sets of same-sex twins in which only one twin had smoked marijuana before age 17 has bolstered the fiercely debated "gateway theory" that pot can lead to harder drugs. The study included 136 sets of identical twins who shared the same genetic makeup and all the participants were 30 years of age, on an average, when they were asked about their teenage drug use. The researchers f...Old theory of adaptation confirmed by new study
The adaptation theory that came up in 1971 argued that people react to good and bad events in their life, but they eventually return to a stable level of well-being. Researchers from Michigan State University, University of Illinois at Urbana-Champaign, France and England confirmed this theory based on a study conducted to evaluate the effects of marital transitions on life satisfaction. 24,000 i...New Information On Virus Goes Against The Age-Old Theory
A researcher from National Institute of Health (NIH) ad brought forward a new theory that challenges the age-old theory concerning virus and body’s immunity. NIH’s Polly Matzinger has developed the "danger model," suggesting // that the immune system is more concerned with damage detected on the basis of a biological cell’s death than with the introduction of foreign invaders, such as...Scientists breaking theory of cortex formation
Researchers from MIT and University of California are finding out a new theory on the formation of brain cortex through a rich array of signals which connect other brain regions forming a new processing network//. The cerebral cortex is a sheet of around 10 billion neurons divided into distinctly separate areas that process particular aspects of sensation, movement and cognition. To wha...