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168,100 articles from ScienceDaily

Stem Cell Breakthrough: Mass-Production Of 'Embryonic' Stem Cells From A Human Hair

The first reports of the successful reprogramming of adult human cells back into so-called induced pluripotent stem cells, which by all appearances looked and acted liked embryonic stem cells created a media stir. But the process was woefully inefficient: only one out of 10,000 cells could be persuaded to turn back the clock. Now researchers successfully reprogram keratinocytes attached to a...

Where Hispanics Live In The US May Change Over Time

A study of residential patterns in America suggests that White and Black Hispanics born in the US are more likely to share neighborhoods with native non-Hispanic Whites and African Americans, compared to foreign-born Hispanics -- a pattern consistent with immigrant assimilation. Hispanics from Mexico in particular integrate consistently with all ethnic groups over...

Increased Retail Security With Smart Items

It is not uncommon for a few boxes of valuable goods to disappear from palettes on the way to retail outlets. That is why researchers in Germany are working on a new technical platform to safeguard such items. This involves using wireless ad-hoc sensor networks to create logistical information systems that allow them to be tracked along the entire distribution...

Formoterol For Asthma: Evidence Of Serious Adverse Effects

Asthma sufferers who regularly take the beta2-agonist formoterol are more likely to suffer non-fatal serious adverse events than those given placebos. A review carried out by Cochrane researchers showed a significantly increased risk for people who took the drug once or twice daily for at least 12 weeks.

Retail Display Fixtures Can Affect Consumer Perceptions Of Products

In virtually all stores, consumers view products on display fixtures that are presumed to be of little consequence. Yet, suppose that you were shopping for a set of trendy new coffee mugs and noticed some on a nearby table or shelf. Would your evaluation of just how trendy the mugs are change depending on the display fixture's surface material -- the piece of glass or wood beneath the product?...

Lack Of Vitamin D Linked To Parkinson's Disease

A majority of Parkinson's patients in a clinical study had insufficient levels of vitamin D, significantly more than Alzheimer's patients or healthy elderly people. The finding suggests that lack of vitamin D may contribute to the risk of developing Parkinson's.

Protein Shown To Play A Key Role In Normal Development Of Nervous System

A protein that enables nerve cells to communicate with each other plays a key role in controlling the developing nervous system. Research into how that protein helps precise connections to form among nerve cells may provide a basis for eventual treatments for patients who suffer injuries to their nervous system, including spinal cord...

Racial Disparities In Cardiovascular Health Linked To Birth Weight, Slavery, Researchers Suggest

Two new articles examine the theory of "fetal programming" and their effect on racial health disparities. The studies, published in American Journal of Human Biology, suggest that the higher rates of hypertension and cardiovascular disease present in African Americans may be a consequence of low birth weights, and that these low birth weights may be a result of social rather than genetic...

Human Brain Still Awake, Even During Deep Sleep

Sleep in humans is divided in two main phases: non-REM sleep, which occupies most of our early sleep night, and REM sleep, during which our dreams prevail. Non-REM sleep is usually considered as a compensatory 'resting' state for the brain, following the intense waking brain activity. Now, new research challenges previous brain imaging studies which showed that the brain was less active during...

ER Staffs: Gaps Exist In Hospital Preparedness For Dirty Bombs

Serious challenges remain in radioactivity readiness, according to a new study that finds emergency room doctors and nurses worry that hospitals are not adequately prepared to handle casualties from a radioactive 'dirty bomb.' Among the concerns is whether ER staffers, in a dirty bomb scenario, could protect themselves and give appropriate care, the study authors...

New Look At Mini-strokes

Like a burning fire, the brain is in constant need of oxygen, and when a blood vessel is blocked during a stroke, part of the brain becomes starved of oxygen and nutrients. When this happens, neurons in that part of the brain die off, leading to permanent loss of function in the parts of the body those neurons...

Better Beer: College Team Creating Anticancer Brew

College students often spend their free time thinking about beer, but a group of Rice University students are taking it to the next level. They're using genetic engineering to create beer that contains resveratrol, a chemical in wine that's been shown to reduce cancer and heart disease in lab animals.