The enigma of bronze age tin

The origin of the tin used in the Bronze Age has long been one of the greatest enigmas in archaeological research. Now researchers have solved part of the puzzle. They were able to proof that tin ingots found at archaeological sites in Israel, Turkey, and Greece do not come from Central Asia, as previously assumed, but from tin deposits in Europe.

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Few people with peanut allergy tolerate peanut after stopping oral immunotherapy

Studies have shown that peanut oral immunotherapy (OIT) — ingesting small, controlled amounts of peanut protein — can desensitize adults and children and prevent allergic reactions, but the optimal duration and dose is unknown. In a study that followed participants after successful OIT, discontinuing OIT or continuing OIT at a reduced dose led to a decline in its protective effects. The study also found that blood tests administered before OIT could predict the success of therapy.

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How new loops in DNA packaging help us make diverse antibodies

It's long been known that our immune cells mix and match bits of genetic code to make new kinds of antibodies to fight newly encountered threats. But how these different gene segments come together has been a mystery. A study provides the answer, showing how the classic process of V(D)J recombination makes use of chromatin looping to gather the segments to be spliced.

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'Communities that Care' prevention system helps to protect youth

Students in Pennsylvania school districts that participated in Communities that Care (CTC) coalitions were significantly less likely to use alcohol or marijuana, or to engage in delinquent behavior than those in non-CTC districts, according to a recent study.

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Slower growth in working memory linked to teen driving crashes

Research into why adolescent drivers are involved in motor vehicle crashes, the leading cause of injury and death among 16- to 19-year-olds in the United States, has often focused on driving experience and skills. But a new study suggests that development of the adolescent brain — in particular, working memory — may play a critical role in whether a teenager is more likely to crash.

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Addressing serious illness with a serious question to clinicians

A question: 'Would you be surprised if this patient died in the next month?' — posed to elicit a clinician's overall impression of a patient — produced a strong correlation. If a clinician answered that they would not be surprised, the patient was twice as likely to die in the next month.

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Tiny bubbles in our body could fight cancer better than chemo

Healthy cells in our body release nano-sized bubbles that transfer genetic material such as DNA and RNA to other cells. It's your DNA that stores the important information necessary for RNA to produce proteins and make sure they act accordingly. These bubbly extracellular vesicles could become mini treatment transporters, carrying a combination of therapeutic drugs and genes that target cancer cells and kill them, according to new research from Michigan State University and Stanford University.

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