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Science News Archive September 2013 - Page 10


Page 10 of 32

The brain cannot be fooled by artificial sweeteners

A new study found that artificial sweeteners are less effective at reducing calorie intake because they don't provide the same energy reward as sugars. The brain prefers sugars over artificial sweeteners due to the release of dopamine, a chemical necessary for reward signalling.

SourceWiley·JournalThe Journal of Physiology·DateSep 22, 2013

Calming fear during sleep

A Northwestern University study found that fear memories can be reduced in people by exposing them to the memory over and over again while they slept. This breakthrough potentially offers a new way to enhance daytime treatment of phobias through exposure therapy with a nighttime component.

SourceNorthwestern University·JournalNature Neuroscience·DateSep 22, 2013

Creating electricity with caged atoms

A team of researchers at the Vienna University of Technology has created a new class of thermoelectric materials with exceptional properties. The material's unique crystal structure and trapped magnetic atoms create a high voltage when hot and cold objects are connected, making it more efficient than previous materials.

SourceVienna University of Technology·JournalNature Materials·DateSep 22, 2013

Why do you want to eat the baby?

Researchers discovered that mothers show increased activation in the dopaminergic system of the caudate nucleus when exposed to newborn odors, a key finding suggesting biological underpinnings for maternal functions. The study's results imply a neural response linked to maternal status.

SourceUniversity of Montreal·JournalFrontiers in Psychology·DateSep 22, 2013

A boost for cellular profiling

A new technique for single-cell analysis of gene expression, named Smart-seq2, has been developed to identify rare cell subpopulations in tumors. This method captures three to four times as many RNA molecules as current methods, allowing for a more granular analysis of how subtle differences contribute to biology and disease.

SourceLudwig Institute for Cancer Research·JournalNature Methods·DateSep 22, 2013

Smile!

A new nanotube surface could improve the success rate of dental implants by reducing infection and promoting bone growth. The technology, developed by Michigan Technological University researchers, uses titanium dioxide nanotubes to create a surface that can combat bacterial infections and promote healing.

SourceMichigan Technological University·JournalRSC Advances·DateSep 21, 2013

Lithosphere interprets earth

Recent studies published in Lithosphere explore the tectonic history of ancient mountain chains, including the Central Iberian Massif, Arctic Alaska, and the Wet Mountains of Colorado. These findings shed light on the deformation mechanisms and crustal-scale magmatism across these regions.

SourceGeological Society of America·JournalLithosphere·DateSep 20, 2013

Followers' actions affect organization's leadership capacity Wayne State researcher finds

A recent study published in The Review of Higher Education found that followers play a crucial role in shaping organizational leadership practices. Through grounded theory research, Dr. Michael Owens discovered that students' participation in program leadership is not just about receiving benefits but also about giving back to the orga...

Personality a key factor in health care use

Researchers found that certain personality characteristics, such as neuroticism and openness to experience, are correlated with increased use of expensive health care services like emergency room visits and nursing home stays. By understanding these patterns, healthcare providers can develop targeted interventions to reduce costs and i...

SourceUniversity of Rochester Medical Center·JournalMilbank Quarterly·DateSep 20, 2013

Stronger sexual impulses may explain why men cheat more than women, study reveals

A recent study suggests that men's stronger sexual impulses are a key factor in their higher rates of infidelity. Men experienced stronger impulses to pursue attractive partners, regardless of whether it was considered 'good' or 'bad', whereas women were more likely to exert self-control and resist these temptations.

SourceUniversity of Texas at Austin·JournalPersonality and Social Psychology Bulletin·DateSep 20, 2013

Gap closed in the genetic map of kingdom fungi

Researchers have closed the genetic map of the fungal kingdom by sequencing the genome of Pyronema confluens, a basal filamentous ascomycete. The study reveals key differences between this species and higher ascomycetes, shedding light on the evolution of mating type genes and light-activated processes.

SourceRuhr-University Bochum·JournalPLOS Genetics·DateSep 20, 2013

Microfluidic platform gives a clear look at a crucial step in cancer metastasis

Researchers developed a microfluidic device to study cancer cell extravasation, the process by which cells escape blood vessels. The device revealed that most arrested cells are trapped and eventually squeeze through, with their nuclei escaping even earlier than expected. Understanding this process can help identify therapies to preven...

SourceMassachusetts Institute of Technology·JournalIntegrative Biology·DateSep 20, 2013

Geoscience Workforce Currents #75 and #76

The American Geosciences Institute released two reports on the effects of a workshop for underrepresented minority individuals seeking careers in academia. The workshop exposed attendees to federal-level resources, professional societies' offerings, and leadership opportunities, leading to positive changes in their behavior.

Bold idea for 'big data'

Rice University researchers are developing a customized, energy-efficient optical network called BOLD to handle the growing amounts of data in various scientific fields. The new network will utilize optical switches with high capacity and low power consumption, enabling faster processing and analysis of large datasets.