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Science News for January 4, 2018


Touchy nanotubes work better when clean

Scientists at Rice and Swansea universities discovered that removing contaminants from carbon nanotubes enhances their conductivity. Vacuum annealing at high temperatures reduced surface contamination, allowing accurate resistance measurements. This breakthrough could lead to more consistent results in nanoscale devices.

SourceRice University·JournalNano Letters·DateJan 4, 2018

Newly published report outlines roadmap for modernizing inhalation toxicity testing

A new report recommends steps toward achieving global regulatory acceptance of non-animal testing approaches for acute inhalation toxicity. The report highlights the need for more efficient and human-relevant methods that don't use animals, with working groups formed to gather reference data and conduct testing.

Accessing your own genomic data is a civil right but requires strategies to manage safety

The Genetic Information Nondiscrimination Act (GINA) created an individual access right to genomic data, but its implementation has been marred by controversy and conflicting regulations. Bioethicists and safety regulators have raised concerns about the misuse of genetic data, while lawmakers argue that GINA solves a non-existent problem.

SourceCell Press·JournalAmerican Journal of Human Genetics·DateJan 4, 2018

Danforth Center uncovers a genetic mechanism that could enhance yield in cereal crops

Researchers at the Donald Danforth Plant Science Center have discovered a genetic mechanism that controls developmental traits related to grain production in cereals. The study found that precise regulation of plant hormones, specifically brassinosteroids, can modulate growth and differentiation of unique inflorescence morphology.

SourceDonald Danforth Plant Science Center·JournalThe Plant Cell·DateJan 4, 2018

Tumor suppressor gene variants identified as cancer 'double whammy' for leukemia patients

Researchers found that germline variations in the tumor suppressor gene TP53 predispose children to develop leukemia and increase their chances of developing a second cancer. The variants are associated with reduced gene activity and were five times more frequent in pediatric ALL patients than those without the disease.

SourceSt. Jude Children's Research Hospital·JournalJournal of Clinical Oncology·DateJan 4, 2018

People who sleep less than 8 hours a night more likely to suffer from depression, anxiety

Regular sleep disruptions associated with difficulty disengaging attention from negative information, leading to intrusive thoughts and increased risk of depression and anxiety. Researchers found that inadequate sleep contributes to the persistence of negative thoughts, making it harder for individuals to ignore them.

SourceBinghamton University·JournalJournal of Behavior Therapy and Experimental Psychiatry·DateJan 4, 2018

Autoimmune reaction successfully halted in early stage islet autoimmunity

Researchers at Helmholtz Munich successfully halted an autoimmune reaction in the early stages of islet autoimmunity, a key step in developing potential treatments for type 1 diabetes. The study reveals that inhibiting the miRNA181a/NFAT5 axis can increase Treg formation and reduce immune activation.

When is the right time to start infants on solid foods?

A recent study published in the Journal of the Academy of Nutrition and Dietetics found that over half of US infants are introduced to complementary foods before six months, while 16.3% are introduced before four months. This deviation from current recommendations may lead to nutrient deficiencies, allergies, and poorer diets later in ...

SourceElsevier·JournalJournal of the Academy of Nutrition and Dietetics·DateJan 4, 2018

Aversion to holes driven by disgust, not fear, study finds

A new study published in PeerJ found that individuals with trypophobia exhibit a physiological response more associated with disgust than fear. The researchers used eye-tracking technology to measure pupil size and found that images of clusters of holes elicited greater constriction of the pupils, a response linked to feelings of disgust.

SourceEmory Health Sciences·JournalPeerJ·DateJan 4, 2018

Pretty in pink and boisterous in blue?

A recent study published in Springer's journal Sex Roles found that preschoolers' ideas about what is appropriate for their gender can be easily influenced by colour labels. The researchers, Sui Ping Yeung and Wang Ivy Wong, recruited 129 Chinese children aged 5-7 from two kindergartens in Hong Kong and showed them cards and toys in di...

SourceSpringer·JournalSex Roles·DateJan 4, 2018

Tick exosomes may aid transmission of viruses to vertebrates

Exosomes from tick cells can transmit viral proteins and genetic material to vertebrate host cells, enabling the spread of brain-infecting viruses. This discovery suggests that tick-borne Flaviviridae viruses may use exosomes to drive transmission and dissemination within the vertebrate host.

SourcePLOS·JournalPLOS Pathogens·DateJan 4, 2018

A look into the fourth dimension

Researchers from ETH Zurich, USA, Germany, Italy, and Israel create a four-dimensional physical phenomenon in two dimensions using the quantum Hall effect. The team, led by Oded Zilberberg, demonstrates a virtual fourth dimension through topological pumping, enabling the observation of four-dimensional quantum Hall effect characteristics.

SourceETH Zurich·JournalNature·DateJan 4, 2018

Bonobos prefer jerks

A Duke University study found that bonobos are more attracted to jerk-like behavior than helpful actions, challenging the idea that humans have a unique preference for kindness. The researchers observed bonobos preferring individuals who hinder others over those who help, suggesting that having powerful allies may be key to their socia...

SourceDuke University·JournalCurrent Biology·DateJan 4, 2018

Unlike people, bonobos don't 'look for the helpers'

A study on bonobos reveals they consistently prefer hinderers over helpers, unlike human infants who naturally favor helpers. This finding suggests that the motivation to cooperate may be uniquely human and could have evolved after our species diverged from other apes.

SourceCell Press·JournalCurrent Biology·DateJan 4, 2018