Body

New evidence of ancient rock art across Southeast Asia

Latest research on the oldest surviving rock art of Southeast Asia shows that the region's first people, hunter-gatherers who arrived over 50,000 years ago, brought with them a rich art practice.

Published this week in the archaeological journal Antiquity, the research shows that these earliest people skilfully produced paintings of animals in rock shelters from southwest China to Indonesia. Besides these countries, early sites were also recorded in Thailand, Cambodia and Malaysia.

Toolkit for ocean health

The ocean is undergoing global changes at a remarkable pace and we must change with it to attain our best possible future ocean, warns the head of The University of Western Australia's Oceans Institute.

One of the global leaders in ocean science, Professor Carlos Duarte has shared his insights on the future of the world's oceans in a paper published in the international open-access journal Frontiers in Marine Science.

In the paper Professor Duarte explains the grand challenge researchers face in addressing global change and the future state of the ocean.

Hydrothermal settlers

The deep ocean seems so remote that it is difficult to imagine any sort of human-generated change making an impact on deep-sea life. It is even more difficult to collect or examine evidence from the deep ocean to determine what those impacts might be. Enter the barnacle; a hard, sessile creature that looks like a tiny volcano and attaches to rocks, boat bottoms, and other hard substrates, where it filters ocean water to feed on tiny organisms. The barnacle holds clues about how climate change is affecting the deep ocean.

Bioengineering study finds two-cell mouse embryos already talking about their future

Bioengineers at the University of California, San Diego have discovered that mouse embryos are contemplating their cellular fates in the earliest stages after fertilization when the embryo has only two to four cells, a discovery that could upend the scientific consensus about when embryonic cells begin differentiating into cell types. Their research, which used single-cell RNA sequencing to look at every gene in the mouse genome, was published recently in the journal Genome Research.

Study unlocks basis of key immune protein's two-faced role

A Brigham and Women's Hospital-led team has identified a long sought-after partner for a key immune protein, called TIM-3, that helps explain its two-faced role in the immune system -- sometimes dampening it, other times stimulating it. This newly identified partner not only sheds light on the inner workings of the immune system in diseases such as HIV, autoimmunity, and cancer, but also provides a critical path toward the development of novel treatments that target TIM-3.

Protecting the rainforest through agriculture and forestry

Conservationists are always looking for ways to halt the pace of deforestation in tropical rainforests. One approach involves recultivating abandoned agricultural land. An international team* investigating this concept has just published its findings in Nature Communications. Working in the mountainous regions of Ecuador, the researchers found afforestation and intense pasturing to be particularly effective, clearly increasing the environmental and economic value of abandoned farmlands.

Precise measurements of microbial ecosystems

The Luxembourg Centre for Systems Biomedicine (LCSB) has succeeded for the first time in describing the complex relationships within an ecosystem in unprecedented detail. For their work, carried out in collaboration with US and Luxembourg partners, their model ecosystem was a "biological wastewater treatment plant". In it live numerous species of bacteria which are involved in the wastewater purification process.

Endangered hammerhead shark found migrating into unprotected waters

The precise movements of a young hammerhead shark have been tracked for the first time and are published in the open access journal Animal Biotelemetry. The study, which ran over a 10-month period, reveals important gaps in current efforts to protect these endangered sharks and suggests key locations that should be protected to help the survival of the species.

Female color perception affects evolution of male plumage in birds

The expression of a gene involved in female birds' color vision is linked to the evolution of colorful plumage in males, reports a new study from the University of Chicago. The findings, published Nov. 26 in the Proceedings of the Royal Society B, confirm the essential role of female color perception in mate selection and sexual dimorphism.

Sweet-smelling breath to help diabetes diagnosis in children

The potential to quickly diagnose children with type 1 diabetes before the onset of serious illness could be achieved using a simple, non-invasive breath test, according to new research published today.

In one of the most comprehensive breath-based studies of children with type 1 diabetes performed to date, a team of researchers from Oxford, UK have linked a sweet-smelling chemical marker in the breath with a build-up of potentially harmful chemicals in the blood that accumulate when insulin levels are low.

A warming world may spell bad news for honey bees

Researchers have found that the spread of an exotic honey bee parasite -now found worldwide - is linked not only to its superior competitive ability, but also to climate, according to a new study published in the journal Proceedings of the Royal Society B.

New study examines the effect of timing of folic acid supplementation during pregnancy

Taking folic acid before conception significantly reduces the risk of small for gestational age (SGA) at birth, suggests a new study published today (26 November) in BJOG: An International Journal of Obstetrics and Gynaecology (BJOG).

This UK population-based study and systematic review assessed the effect of timing of folic acid supplementation during pregnancy on the risk of the baby being SGA at birth, defined as birth weight less than the 10th centile or in the lowest 10% of babies born.

Reported link between early life exposure to paracetamol and asthma 'overstated'

Respiratory infections are likely to have an influential role, the findings suggest. And the evidence is simply not strong enough to warrant changes to current guidance on the use of this medicine, say the researchers.

The use of paracetamol during pregnancy and/or a child's early life has been implicated in the development of childhood asthma, prompting concerns to be raised about the drug's continued use during these periods.

The Lancet: Most comprehensive global study to date shows wide gulf in cancer survival between countries

The most comprehensive international comparison of cancer survival to date, covering countries that are home to two-thirds of the world's population, shows extremely wide differences in survival between countries.

The CONCORD-2 study, published in The Lancet, reports 5-year survival estimates for 25.7 million cancer patients diagnosed with one of 10 common cancers [1] and 75 000 children diagnosed with acute lymphoblastic leukaemia between 1995 and 2009, using individual patient data from 279 cancer registries in 67 countries [2].

The Lancet Oncology: Overweight and obesity linked to nearly 500,000 new cancers in 2012

Excess body weight causes around 481 000 new cancer cases a year in adults--or 3.6% of cancers worldwide--new estimates published in The Lancet Oncology suggest. The burden is far higher in more developed countries, with almost two-thirds (64%) of these obesity-related cancers occurring in North America and Europe.