Tag: "compaction" at biology news
5 OHSU faculty members singled out for honors
...ytoskeletal and membrane dynamics during embryonic compaction
when dividing cells start to organize and function as epithelia. Teaching: William Hersh, M.D., professor and chair of the department of medical informatics and clinical epidemiology (DMICE) in the School of Medicine. Hersh has been a pioneer and ...
UCLA researchers reprogram normal tissue cells into embryonic stem cells
...histones, which serve as a kind of scaffolding for compaction
of the long DNA molecule. Histones dont merely package DNA. Chemical tags on histones determine which genes are expressed or shut off in the DNA. In the reprogrammed cells, the location of the chemical tags along the DNA chromosomes were identical to...
Single molecular 'mark' seen as pivotal for genome compaction in spores and sperm
...t the molecule "marks" the chromatin just prior to compaction
and that its presence is mandatory for successful ...e, suggesting that the mechanisms governing genome compaction
are evolutionarily ancient, highly conserved in species whose lineages diverged long ago. A report o...
Forest service researchers test Chinese tallow tree for use in building materials
...es, with the woods relatively low density and high compaction
ratio adding to its potential. We have heard anecdotally that buyers prefer brightly colored panels, so the light color of Chinese tallow tree might also work to its advantage, said Groom, who emphasized that the studies were preliminary, and that ...
Rise in sea level, loss of wet lands may account for unstable ground in Mississippi Delta
...by Tulane's Torbjrn Trnqvist suggests instead that compaction
of the shallowest and most-recently formed delta sediments is the main cause of subsidence in that area. "Our research could have major implications for rebuilding plans that are currently being debated," said Tornqvist. "Over the long term, compr...
Rangeland repair enters phase 2
...said, have been severely damaged by training. Soil compaction
has reduced desirable plant species' ability to ge...il and crop sciences will study the amount of soil compaction
and the impact of vegetation in recovery. Management practices such as soil ripping deep plowing of...
News tips from the Journal of Neuroscience
...fold forms tetramers in trans that allow for the compaction
of myelin layers. Although mutations in myelin protein zero [ MPZ ], P0 ) are well-known causes of neuropathy, the clinical phenotypes vary widely, in contrast to the mild abnormalities caused by heterozygous loss of function. Thus Wrabetz et al. ...
Logging may hinder forest regeneration, increase fire risk
...hat the use of heavy equipment, log skidding, soil compaction
and burial of seedlings by excess woody debris took a heavy toll on naturally regenerated seedlings, which in this case began taking root almost immediately after the fire. The logging of dead, burned trees might add more debris than logging of green...
Rare chalk grassland takes 50 years to recover from military use
...h the crushing and cutting of vegetation, and soil compaction
effects decrease soil microporosity and rainfall infiltration capacity, altering nutrient availability and restricting root growth." Covering 38,000 hectares, Salisbury Plain Training Area is the largest military training area in the UK, and the only...
Study in Royal Society journal on how relationship status influences sex ratios
...e-coupling and time-reversal invariance Additional compaction
of SI cardinalities is observed via mappings based on (Lie) "group measures over isomorphic algebra(s)", e.g. for [AX]n NMR total SI-cardinalities. Conventional Jucy recoupling and Weyl/Corio NMR SI/xDj(U)(SU2)/ theory is now seen as being restricted...