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Science News for August 19, 2015


Don't I know that guy?

Johns Hopkins University researchers identified the hippocampus region responsible for distinguishing between familiar and new memories. This finding validates theories about memory processing and may help explain memory impairments in diseases like Alzheimer's, potentially preserving people's memories as they age.

SourceJohns Hopkins University·JournalNeuron·DateAug 19, 2015

Computer models show significant tsunami strength for Ventura and Oxnard, California

Researchers used computer models to simulate a tsunami generated by an earthquake in the Ventura basin, finding that it could inundate parts of the regional coastline several kilometers inland. The study highlights the potential for significant tsunami hazards in the area and emphasizes the need for full hazard assessments.

SourceUniversity of California - Riverside·JournalGeophysical Research Letters·DateAug 19, 2015

Research reveals link between age and opinions about video games

A study of 109 clinicians found that older participants are more likely to believe playing video games leads to violent behavior, highlighting a generational effect. The researchers suggest that parents can help bridge this gap by engaging with their children and trying out the games themselves.

SourceElsevier·JournalComputers in Human Behavior·DateAug 19, 2015

Stem cells derived from amniotic membrane can benefit retinal diseases when transplanted

Researchers successfully transplanted mesenchymal stromal cells (MSCs) derived from human amniotic membranes into laboratory mice with oxygen-induced retinopathy, demonstrating the potential of MSCs to suppress causes of diabetic retinopathy and macular degeneration. The study found that AMSCs secrete growth factors that inhibit angiog...

NIH scientists and colleagues successfully test MERS vaccine in monkeys and camels

Researchers at the NIH have successfully tested an experimental MERS vaccine in monkeys and camels, demonstrating broad protection against different strains of the virus. The vaccine uses a synthetic DNA sequence that combines elements of SARS and MERS-CoV proteins, inducing protective immunity in non-human primates.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalScience Translational Medicine·DateAug 19, 2015

Social media is transforming emergency communications -- Ben-Gurion U. study

A study by Ben-Gurion University researchers highlights the importance of social media in emergency situations. The public is often the first to adopt social media platforms during emergencies, creating a self-regulating environment where users can correct misinformation and share relevant information.

SourceAmerican Associates, Ben-Gurion University of the Negev·JournalInternational Journal of Information Management·DateAug 19, 2015

Earliest baboon found at Malapa

A fossil monkey specimen representing the earliest baboon ever found has been discovered in South Africa, dated between 2-2.36 million years ago. The partial skull confirms earlier suggestions that the fossil baboon species is closely related to modern baboons and may be the earliest known members of the Papio hamadryas species.

SourceUniversity of the Witwatersrand·JournalPLOS ONE·DateAug 19, 2015

The pronoun I is becoming obsolete

Recent studies have shown that thinking of plants and animals as autonomous individuals is a serious over-simplification. Microbiologists propose the concept of holobionts, which consists of visible hosts plus millions of invisible microbes that significantly affect development, diseases, behavior, and social interactions.

SourceVanderbilt University·JournalPLOS Biology·DateAug 19, 2015

Study finds racial disparity between what black and white borrowers pay for home mortgages

A study by Florida Atlantic University finds that black borrowers, especially low-income black women, pay significantly higher interest rates on home mortgages compared to their white counterparts. The rate difference can be substantial, resulting in additional monthly mortgage payments and lost wealth over time.

SourceFlorida Atlantic University·JournalThe Journal of Real Estate Finance and Economics·DateAug 19, 2015

How clean is your spinach?

Engineers at the University of California, Riverside discovered that nearly 15% of baby spinach leaf surface area may reach concentrations as low as 1000 times that of bleach disinfectant, allowing bacteria to survive and spread. The study highlights the limitations of current disinfection methods in reducing cross-contamination.

Mystery of exploding stars yields to astrophysicists

The causes of stellar explosions known as Type Ia supernovae have been debated for decades. Recent studies suggest that either one or two white dwarfs can trigger these events, shedding light on the evolution of galaxies and dark energy. Understanding this phenomenon will inform our study of the universe's expansion.

SourceThe Kavli Foundation·JournalNature·DateAug 19, 2015

New clues to the genetic origins of obesity

A study led by Beth Israel Deaconess Medical Center and MIT reveals a genetic circuit controlling fat storage versus burning. The research identifies two key genes, IRX3 and IRX5, which are under the control of the FTO gene variant associated with obesity. Manipulating this pathway may offer a new treatment approach for obesity.

SourceBeth Israel Deaconess Medical Center·JournalNew England Journal of Medicine·DateAug 19, 2015

Forgotten sex signals

A recent study found that signaling to one another can be lost in populations, particularly if receiving the signal is not crucial for mating. This loss of signals can happen rapidly and may lead to extinction or hybridization with other species.

SourceMichigan State University·JournalEcology and Evolution·DateAug 19, 2015

Introducing the single-cell maze runner

Researchers discovered single-cell organisms can somersault and bend their bodies to navigate confined spaces, exhibiting unique behaviors such as meandering wanderings and ballistic swimming traits. This finding has significant implications for the study of microfluidics and its applications in various engineering and scientific fields.

SourceVirginia Tech·JournalScientific Reports·DateAug 19, 2015

Bats wake up and smell the coffee

A team of researchers found that several bat species are struggling in fragmented landscapes, but also discovered that shade-grown coffee plantations offer a lifeline for biodiversity. These plantations keep native forest canopies while promoting wildlife-friendly agriculture.

SourceUniversity of Leeds·JournalBiological Conservation·DateAug 19, 2015

Data mining DNA for polycystic ovary syndrome genes

Researchers identified two new genetic susceptibility regions specific to European women with PCOS, including a region containing the FSH gene, which plays an essential role in ovarian function. The study provides crucial insights into the disorder's biological pathways, paving the way for new treatments and disease prevention approaches.

SourceNorthwestern University·JournalNature Communications·DateAug 19, 2015

Helium anomaly preceded Mount Ontake eruption

Researchers found a significant increase in helium-3 to helium-4 ratio at the hot spring closest to the volcano prior to the 2014 eruption. This suggests that helium anomalies are associated with phreatic eruptions, potentially offering valuable insights for long-term risk management and disaster mitigation.

SourceUniversity of Tokyo·JournalScientific Reports·DateAug 19, 2015