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Science News for July 14, 2015


Nonmagnetic elements form unique magnet

Researchers created the material by combining titanium and gold, resulting in an unusual magnetic property. The discovery of TiAu has significant implications for understanding magnetism and its applications, particularly in studying phase transitions at absolute zero.

SourceRice University·JournalNature Communications·DateJul 14, 2015

Rice U research sheds light on Amazon vs. Wal-Mart competition

Researchers at Rice University found that consistent superior e-service quality is key to winning the e-commerce battle between Amazon and Wal-Mart. The study identified four core dimensions of e-service quality, including website design, fulfilment, customer service, and security/privacy, which strongly impact overall e-service quality.

SourceRice University·JournalJournal of Retailing·DateJul 14, 2015

This is your brain on fried eggs

High-fat feeding, especially saturated fats, can cause impairments in critical motivation brain pathways, according to a new study published in Neuropsychopharmacology. The research found that rats fed with palm oil had blunted dopamine function, leading the brain to compensate by heightening reward-seeking behavior.

SourceUniversity of Montreal·JournalNeuropsychopharmacology·DateJul 14, 2015

How the lung repairs its wounds

A novel mass spectrometry technique has enabled scientists to quantify and profile dynamic changes in lung tissue composition during regeneration. The study reveals the importance of extracellular matrix proteins in activating stem cells, offering a new avenue for treating chronic lung diseases like pulmonary fibrosis.

Mass map shines light on dark matter

Researchers developed a new map of dark matter distribution using DES data, providing valuable tool for cosmology to answer questions about dark energy and dark matter. The mass map allows scientists to check their work and verify the relationship between galaxy distribution and dark matter density.

SourceDOE/Argonne National Laboratory·JournalPhysical Review Letters·DateJul 14, 2015

Researchers discover way to assess future literacy challenges

A new study published in PLOS Biology has discovered a way to assess future literacy challenges in children. The research centers on the child's ability to decipher speech in a chaotic, noisy environment, and found that preliterate children with brain inefficiencies are more likely to struggle with reading and language development.

SourcePLOS·JournalPLOS Biology·DateJul 14, 2015

Traditional Chinese exercises may help patients with COPD

Patients with COPD in remission showed improved lung function and quality of life after practicing Liuzijue qigong (LQG) for 6 months. The exercise program, combining meditation and walking, demonstrated marked benefits in mental health as well.

SourceWiley·JournalJournal of the American Geriatrics Society·DateJul 14, 2015

Am I fat? Many of today's adolescents don't think so

A new study published in the American Journal of Preventive Medicine found that increasing numbers of overweight adolescents do not consider themselves overweight. This misperception is linked to a decline in willingness to make weight-related behavioral changes, despite being at risk for obesity.

SourceElsevier Health Sciences·JournalAmerican Journal of Preventive Medicine·DateJul 14, 2015

Should doctors recommend homeopathy?

Peter Fisher argues that homeopathy is misunderstood and that some reviews have omitted key evidence, while Edzard Ernst claims that most independent systematic reviews have failed to show homeopathy's effectiveness due to methodological flaws.

SourceBMJ Group·JournalThe BMJ·DateJul 14, 2015

Few states require HPV vaccine

The human papillomavirus (HPV) vaccine is currently required in only two US states, with vaccination coverage substantially below the Healthy People 2020 target. A recent study found that HPV vaccination rates are lower than those for other adolescent vaccines, such as hepatitis B and meningococcal conjugate vaccines.

SourceJAMA Network·JournalJAMA·DateJul 14, 2015

Scientific curiosity and preparedness for emerging pathogen outbreaks

The article highlights Stanley Perlman's career journey from studying mouse viruses to researching human coronaviruses like SARS and MERS. His work demonstrates the importance of basic research in understanding virus interactions with the immune system, which can inform strategies for preventing or treating diseases.

SourcePLOS·JournalPLOS Pathogens·DateJul 14, 2015

Could dissolvable microneedles replace injected vaccines?

A new vaccine patch made of dissolvable material has been shown to be effective in protecting against flu infection, with an immune reaction equal to or stronger than traditional needle-delivered vaccines. The patch is easy to use without medical personnel, making it ideal for developing countries.

SourceElsevier·JournalBiomaterials·DateJul 14, 2015

Ebola vaccine trial begins in Senegal

A clinical trial testing an Ebola vaccine developed on a new cell line is underway in Senegal, aiming to provide a rapid response to outbreaks. The trial uses two vaccines, ChAd3-EBO Z and MVA-EBO Z, which have shown excellent safety profiles and promise for low-cost mass production.

Smart cornfields of the future

Researchers aim to improve crop productivity by optimizing photosynthetic efficiency, a process that has plateaued due to its inefficiency. Designs include smart canopies with layered plants and tailored light-absorbing pigments to minimize light saturation and maximize energy use.

SourceWashington University in St. Louis·JournalProceedings of the National Academy of Sciences·DateJul 14, 2015

Dads' parenting of children with autism improves moms' mental health

Research suggests that fathers who read to their infants with autism and take active roles in caregiving activities can reduce mothers' depression and stress. The study found that when fathers engage in literacy and responsive caregiving activities, mothers report fewer depressive symptoms and improved well-being.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalMaternal and Child Health Journal·DateJul 14, 2015

Spray application of respiratory cells holds promise for tissue engineering

A new study demonstrates the ability to apply a thin coating of viable respiratory epithelial cells to tissue engineered constructs using a commercially available spray device, providing a promising approach for repairing or replacing challenging structures like trachea or bronchi. The effects of air pressure and nozzle diameter on cel...

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalBioResearch Open Access·DateJul 14, 2015

Law governing anomalous heat conduction revealed

Researchers have discovered a new law governing anomalous heat conduction, which scales up with temperature in a power law manner. This finding challenges previous exponential scaling predictions and provides insights into the thermal transport of electrons.

SourceSpringer·JournalThe European Physical Journal B·DateJul 14, 2015

Constant change

The determination of fundamental constants is becoming increasingly accurate, according to a review paper published this week. This will aid in the redefinition of standard scientific units, including the kilogram and the Kelvin, by 2018.

SourceAmerican Institute of Physics·JournalJournal of Physical and Chemical Reference Data·DateJul 14, 2015