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168,132 articles from ScienceDaily

New Insights Into Teenagers And Anxiety Disorders

Can scientists predict who will develop anxiety disorders years in advance? One UCLA professor of psychology thinks so, and is four years into an eight-year study, evaluating 650 students who were 16-years-old at the study's start, to learn risk factors for the development of anxiety and depression -- the most comprehensive study of its...

Later Treatment Of Acute Stroke Suggested By New Study

The time span in which treatment should be given for acute ischaemic stroke -- i.e. stroke caused by a clot or other obstruction to the blood supply -- can be lengthened. This according to a new study, the results of which can bring about more effective and safer treatments for stroke sufferers.

Protective Pathway In Stressed Cells Not So Helpful When It Comes To Prions

Scientists have discovered that an important cellular quality control mechanism may actually be toxic to some brain cells during prion infection. The research proposes a new general mechanism of cellular dysfunction that can contribute to the devastating and widespread neuronal death characteristic of slowly progressing neurodegenerative...

Earth Structure: Lowermost Mantle Has Materials With Unexpected Properties

Materials deep inside Earth have unexpected atomic properties that might force earth scientists to revise their models of Earth's internal processes. Recreating in the lab materials they believe exist in the lowermost mantle 2,900 kilometers below Earth's surface, researchers say the materials exhibit unexpected atomic properties that might influence how heat is transferred within Earth's mantle,...

Mice Missing 'Fear' Gene Slow To Protect Offspring

First, he discovered a gene that controls innate fear in animals. Now Rutgers geneticist Gleb Shumyatsky has shown that the same gene promotes "helicopter mom" behavior in mice. The gene, known as stathmin or oncoprotein 18, motivates female animals to protect newborn pups and interact cautiously with unknown peers. Shumyatsky's newest finding could enhance our understanding of human anxiety,...

Why Some Primates, But Not Humans, Can Live With Immunodeficiency Viruses And Not Progress To AIDS

Some primate species, including sooty mangabeys, harbor simian immunodeficiency viruses but remain healthy, unlike rhesus macaques. The immune systems of sooty mangabeys become significantly less activated during SIV infection than the immune systems of macaques. The less vigorous immune response to SIV in mangabeys may be an effective evolutionary response to a virus that resists clearance by...

Is Re-emerging Superbug The Next MRSA?

Physicians are issuing a warning that Clostridium difficile, a virulent strain of an intestinal bacteria, is currently plaguing hospitals and now rivals the superbug Methicillin-resistant staphylococcus aureus as a top disease threat to humans. The little-known bacteria appears to be the next emerging disease threat, killing 1,000s in the United...

Don't Throw The Candy Out: Temptation Leads To Moderation

Banishing tempting goodies may not be the best way to keep from eating them. Tempting foods can actually increase willpower, according to new research. Although it seems counterintuitive, consumers show more self-control after they've spent some time in the presence of a treat.

Potential New Drug For Cocaine Addiction And Overdose

Chemists are reporting development of what they term the most powerful substance ever discovered for eliminating cocaine from the body, an advance that could lead to the world's first effective medicine for fighting overdoses and addictions of the illicit drug.