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Neutron-rich nucleus shapeshifts between a rugby ball and a discus

EurekAlert! - Jue, 06/22/2017 - 22:00
Researchers have shown that there are two coexisting, competing quantum shapes at low energy in 98Kr, never before seen for neutron-rich Kr isotopes. The team also showed that these isotopes experience a gentle onset of deformation with added neutrons, in sharp contrast with neighboring isotopes of rubidium, strontium, and zirconium, which change shapes suddenly at neutron number 60. This study marks a decisive step towards an understanding of the limits of this quantum phase transition region, and was published in Physical Review Letters.

How the climate can rapidly change at tipping points

EurekAlert! - Jue, 06/22/2017 - 22:00
During the last glacial period, within only a few decades the influence of atmospheric CO2 on the North Atlantic circulation resulted in temperature increases of up to 10 degrees Celsius in Greenland -- as indicated by new climate calculations from researchers at the Alfred Wegener Institute and the University of Cardiff.

NUS study: Plants sacrifice 'daughters' to survive chilly weather

EurekAlert! - Jue, 06/22/2017 - 22:00
A new study by a team of plant biologists from the National University of Singapore found that some plants may selectively kill part of their roots to survive under cold weather conditions.

New research reveals impact of seismic surveys on zooplankton

EurekAlert! - Jue, 06/22/2017 - 22:00
Marine seismic surveys used in petroleum exploration could cause a two to three-fold increase in mortality of adult and larval zooplankton, new research published in leading science journal Nature Ecology and Evolution has found. Scientists from IMAS and the Centre for Marine Science and Technology (CMST) at Curtin University studied the impact of commercial seismic surveys on zooplankton populations by carrying out tests using seismic air guns in the ocean off Southern Tasmania.

Protein mingling under blue light

EurekAlert! - Jue, 06/22/2017 - 22:00
IBS scientists developed a new faster and more efficient optogenetic tool to manipulate protein clusters under blue light.

Existing drugs could benefit patients with bone cancer, genetic study suggests

EurekAlert! - Jue, 06/22/2017 - 22:00
A subgroup of patients with osteosarcoma -- a form of bone cancer -- could be helped by an existing drug, suggest scientists from the Wellcome Trust Sanger Institute and their collaborators. In the largest genetic sequencing study of osteosarcoma to date, scientists discovered that 10 percent of patients with a genetic mutation in particular growth factor signalling genes may benefit from existing drugs, known as IGF1R inhibitors.

Don't leave baby boomers behind when designing wearable technology

EurekAlert! - Jue, 06/22/2017 - 22:00
Accounting for age-related cognitive and physical challenges can increase adoption rates for older users who need help managing their health.

Dietary and lifestyle recommendations for patients at risk of macular degeneration

EurekAlert! - Jue, 06/22/2017 - 22:00
Age-related macular degeneration (AMD) is a major cause of severe visual impairment in older populations and is characterized by progressive destruction of the retinal pigment epithelial cells and photoreceptors due to low-grade inflammation, ischemia and oxidative stress. Studies show evidence that carotenoids and antioxidants derived either from the diet or from supplements may significantly reduce the risk of visual loss in these patients.

Putting others first can cost lives in emergencies

EurekAlert! - Jue, 06/22/2017 - 22:00
Selfless heroism isn't the best strategy in life-and-death disaster situations involving groups of people, a new study from the University of Waterloo suggests.

Solar System survey casts doubt on mysterious 'Planet Nine'

Nature News - Jue, 06/22/2017 - 13:29

Orbits of four newfound objects show no signs of gravitational pull from proposed giant planet.

Nature News doi: 10.1038/nature.2017.22177

US court grants Elsevier millions in damages from Sci-Hub

Nature News - Jue, 06/22/2017 - 13:29

Some doubt that the publishing giant will see any money from the pirate site.

Nature News doi: 10.1038/nature.2017.22196

News at a glance

ScienceNOW Daily News Feed - Jue, 06/22/2017 - 11:20

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