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Science News Archive March 2016 - Page 24


Page 24 of 41

Newly discovered dinosaur reveals how T. rex became king of the Cretaceous

A newly discovered dinosaur, Timurlengia euotica, lived about 90 million years ago and fills a 20 million-year gap in the fossil record of tyrannosaurs. The species had developed keen senses and cognitive abilities, including low-frequency hearing, which positioned it to take advantage of opportunities to reach the top of its food chain.

SourceSmithsonian·JournalProceedings of the National Academy of Sciences·DateMar 14, 2016

Researchers develop new lens for terahertz radiation

A new type of lens for focusing terahertz radiation has been developed by Brown University researchers, performing as well or better than existing lenses. The device uses an array of stacked metal plates to focus terahertz waves, allowing for improved transmission and versatility in different wavelengths.

SourceBrown University·JournalScientific Reports·DateMar 14, 2016

Nature versus nurture

Research by UCSB psychologist John Protzko found that environmental interventions can temporarily boost general intelligence in low-birth-weight children. The effects, however, diminish over time, a phenomenon known as the 'fadeout effect'. This suggests that underlying cognitive abilities may not be the primary drivers of intelligence.

New drug hope for mesothelioma

Researchers have discovered a new drug, HRX9, that targets the HOX gene family and induces apoptosis in mesothelioma cells. The study found that treatment with HRX9 resulted in complete loss of tumor blood vessels and widespread cancer cell death, offering new hope for patients.

SourceUniversity of Bradford·JournalBMC Cancer·DateMar 14, 2016

Many cancer survivors experience financial burdens

A study analyzing US cancer survivor data reveals nearly 29% face financial burden due to cancer diagnosis and treatment. Cancer survivors with financial problems experience lower physical and mental health-related quality of life, higher risk of depressed mood and psychological distress.

SourceWiley·JournalCancer·DateMar 14, 2016

No dramatic shifts in BMI for overweight girls a year after receiving fitness assessment

A new study by NYU and Columbia University found that being classified as overweight in school fitness reports does not lead to short-term changes in body mass index for female students. The researchers analyzed data from over 3 million public school students and found a small increase in BMI among those newly identified as overweight.

SourceNew York University·JournalProceedings of the National Academy of Sciences·DateMar 14, 2016

Pigeon foot feather genes identified

Researchers discovered two genes, Pitx1 and Tbx5, responsible for developing feathered feet in pigeons. The study suggests that these genes may have played a role in the evolution of feathers in dinosaurs and early birds. The findings provide insight into how skin regions can be controlled to produce scales or feathers.

Global shift in farmed fish feed may impact nutritional benefits ascribed to seafood

A new analysis from the Johns Hopkins Bloomberg School of Public Health suggests that the increasing use of plant-based feeds in farmed fish may change the levels of healthy fatty acids in these fish. This shift has large implications for dietary recommendations, as farmed fish are a significant source of omega-3 fatty acids.

SourceJohns Hopkins Bloomberg School of Public Health·JournalEnvironment International·DateMar 14, 2016

New method detects multiple diseases via DNA released from dying cells into blood

A new method detects multiple diseases via methylation patterns of circulating DNA from dying cells, identifying cell death in specific tissues and offering a minimally-invasive window for monitoring and diagnosis. The approach has vast possibilities for diagnostic medicine and can be adapted to identify cfDNA derived from any cell type.

SourceThe Hebrew University of Jerusalem·JournalProceedings of the National Academy of Sciences·DateMar 14, 2016

How the brain detects short sounds

University of Utah researchers discovered how certain brain cells compute sound length and detect short sounds. The study found that for a frog brain cell to recognize a short sound, it is inhibited from firing while the sound occurs, then excited into firing when the sound ends.

SourceUniversity of Utah·JournalProceedings of the National Academy of Sciences·DateMar 14, 2016

Experimentation and largest-ever quantum simulation of a disordered system explain quantum many-particle problem

Physicists have successfully simulated a disordered quantum system on the largest supercomputers, providing new insights into the many-particle problem. The researchers used controlled experiments and computer simulations to study the behavior of materials such as high-temperature superconductors.

Lizards keep their cool

Researchers developed a new computerized method to reconstruct lizard habitats and track temperature management. The study found lizards deliberately choose habitats with optimal temperatures, adjusting behavior to avoid heat shock.

SourceJames Cook University·JournalThe American Naturalist·DateMar 14, 2016

Research will help policymakers plan for sea level rise

A new study forecasts that a 6-foot sea level rise will expose over 13 million American homes to flooding and other hazards, with Florida facing the greatest risk. The research provides policymakers with detailed information to develop practical adaptation strategies for protecting land threatened by frequent and repeated inundation.

SourceUniversity of Georgia·JournalNature Climate Change·DateMar 14, 2016

If you want to quit smoking, do it now

A study published in Annals of Internal Medicine found that quitting smoking abruptly is more likely to lead to long-term success than gradual reduction. After assessing 697 smokers for four weeks and six months, the research revealed a 25% higher quit rate for those who stopped all at once.

SourceUniversity of Oxford·JournalAnnals of Internal Medicine·DateMar 14, 2016

Fish and insects guide design for future contact lenses

Researchers designed a contact lens that adjusts its focus using a bioinspired retina structure, inspired by the elephant nose fish's ability to spot predators. The lens is powered by a small solar cell and can capture images under low-light conditions, offering a potential solution for people with presbyopia.

SourceNIH/National Eye Institute·JournalProceedings of the National Academy of Sciences·DateMar 14, 2016

Which neuron is more mature? Single cell transcriptome knows!

Researchers have identified 39 generic biomarkers for human neuronal maturation using single cell transcriptome profiling. The study found that certain genes are consistently elevated when neurons mature, highlighting the importance of calcium signaling, mitochondrial function, and ubiquitination-related processes.

SourceSpringer·JournalProtein & Cell·DateMar 14, 2016