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Science News Archive August 2015 - Page 21


Page 21 of 32

Fetal ECG readings offer no advantage over heart rate monitoring during labor

A new study by the National Institutes of Health found no significant differences in birth complications between fetal ECG monitoring and traditional heart rate monitoring during labor. Infants in ECG-monitored groups were slightly more likely to have low Apgar scores, but overall outcomes remained unchanged.

Evolution peaks on tropical mountain

Research on Mount Kinabalu in Malaysian Borneo found that most endemic species are younger than the mountain itself and have evolved to adapt to cooler conditions. The study revealed two groups of unique species, with some originating from far-away areas and others evolving from local species.

Genetic analysis supports elevating Cape Parrot to new species

A recent study published in PLOS ONE suggests that the Cape Parrot should be classified as a distinct species due to its genetically distinct markers. The research analyzed DNA samples from five Poicephalus species and found that the Cape Parrot shares common ancestry with other subspecies only at around 2 million years ago.

SourcePLOS·JournalPLOS ONE·DateAug 12, 2015

Flexible, biodegradable device can generate power from touch (video)

Scientists have developed a biodegradable nanogenerator made with DNA that can capture and convert everyday motion into electrical power. The flexible device has been successfully tested, lighting up multiple LEDs with gentle tapping, and offers a promising solution for reducing e-waste and increasing portable electronics' battery life.

SourceAmerican Chemical Society·JournalACS Applied Materials & Interfaces·DateAug 12, 2015

Can stem cells cause and cure cancer?

A recent study by Fen Wang and Wallace McKeehan reveals that errors in FGF transmission can activate dormant stem cells, leading to cancer. The research supports the existing theory that cancer is a stem cell disease and holds promise for future cancer therapies.

SourceTexas A&M University·JournalJournal of Biological Chemistry·DateAug 12, 2015

Better estimates of worldwide mercury pollution

A new study provides more accurate estimates of worldwide mercury pollution, revealing Asia produces over double the previous estimated amount. The research uses a top-down approach combining measured air concentrations with a global simulation to calculate mercury emissions, improving estimates and refining pollution-control strategies.

SourceMassachusetts Institute of Technology·JournalAtmospheric Chemistry and Physics·DateAug 12, 2015

Pelvic pain may be common among reproductive-age women, NIH study finds

Researchers found that nearly 30% of reproductive-age women experienced chronic or cyclic pelvic pain, with endometriosis women reporting higher levels of pain. Physicians may want to ask patients about pain during routine visits, and women should inform their doctors about any pain they're experiencing.

Quantum computing advance locates neutral atoms

Researchers at Penn State have developed a method for addressing individual neutral atoms using laser light, enabling the creation of quantum computers. The technique allows for precise control over qubits and enables quantum computing applications such as factoring large numbers used in secure codes.

SourcePenn State·JournalPhysical Review Letters·DateAug 12, 2015

Concern over claims about how technology affects young brains

Despite claims by Susan Greenfield that intense internet use harms adolescent brains, experts warn that there is currently no evidence to support these claims. Research suggests that social networking sites can enhance friendships and relationships, while computer games do not lead to impulsiveness or aggression.

SourceBMJ Group·JournalThe BMJ·DateAug 12, 2015

Antidepressant drug trials criteria not generalizable

Most antidepressant efficacy studies (AETs) now exclude a significant proportion of depressed patients, including those with comorbid psychiatric disorders and low rating scale scores. This trend suggests that AETs may be even less generalizable than previously thought, limiting their applicability to real-world populations.

SourceLifespan·JournalMayo Clinic Proceedings·DateAug 12, 2015

How lipids are flipped

Researchers from ETH Zurich have determined the structure of a flippase, PglK, that flips lipid-linked oligosaccharides, revealing a novel mechanism. The discovery sheds light on fundamental biological processes and may lead to therapeutic approaches for diseases associated with glycosylation disorders.

SourceETH Zurich·JournalNature·DateAug 12, 2015

This week from AGU: Natural arches, Italian earthquake, Canadian rivers & research papers

Scientists have found a way to detect internal damage in Utah's natural arches that could lead to their collapse. A study also reveals how a 16th-century Italian earthquake changed the course of the Po River over thousands of years. Researchers explore the effects of smaller rivers from Canada's Arctic islands on the North Atlantic.

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateAug 12, 2015