Escuelas

EurekAlert!

Subscribe to canal de noticias EurekAlert! EurekAlert!
The premier online source for science news since 1996. A service of the American Association for the Advancement of Science.
Actualizado: hace 1 hora 27 mins

How a tetrahedral substance can be more symmetrical than a spherical atom: A new type of symmetry

Jue, 09/13/2018 - 22:00
Scientists at Tokyo Institute of Technology have theoretically demonstrated that special tetrahedron nanostructures composed of certain metals have a higher degree of symmetry than the geometrical symmetry of spherical atoms. Nanomaterials with unique and unprecedented electrical and magnetic properties arising from this symmetry will be developed and used for next-generation electronic devices.

World speed record for polymer simulations shattered by over a hundred-fold

Jue, 09/13/2018 - 22:00
By analogy to linear polymers, which reptate with a random walk embedded in a 3D network, we show that star polymers relax by a random walk in a 5D network.

Viruses under the microscope

Jue, 09/13/2018 - 22:00
Human herpesviruses such as HHV-6 can remain dormant in cells for many years without being noticed. When reactivated, they can cause serious clinical conditions. Researchers from Würzburg have now found a way of differentiating between active and inactive viruses.

An innovative procedure improves the control of liquid intake during haemodyalisis

Jue, 09/13/2018 - 22:00
The lecturer and researcher in the Department of Health Sciences of the Public University of Navarre (NUP/UPNA) Mark Beyebach has conducted a pilot study to demonstrate the positive impact of solution-focussed communication by nurses towards their patients on haemodyalisis, so that the patients manage to reduce their liquid intake and thus contribute towards the satisfactory course of their treatment.

Organic farming methods favors pollinators

Jue, 09/13/2018 - 22:00
Pollinating insects are endangered globally, with a particularly steep decline over the last 40 years. An extensive 3-year study from Lund University in Sweden has found that organic farming methods can contribute to halting the pollinator decline. This beneficial effect is due to both the absence of insecticides and a higher provision of flower resources.

Sniffing out error in detection dog data

Jue, 09/13/2018 - 22:00
New research finds three alternative answers beyond errors in handler or dog training that can explain why dogs trained to identify scat for conservation purposes sometimes collect non-target scats.

Hate speech-detecting AIs are fools for 'love'

Jue, 09/13/2018 - 22:00
Hateful text and comments are an ever-increasing problem in online environments, yet addressing the rampant issue relies on being able to identify toxic content. A new study by the Aalto University Secure Systems research group has discovered weaknesses in many machine learning detectors currently used to recognize and keep hate speech at bay.

Geologists reveal ancient connection between England and France

Jue, 09/13/2018 - 22:00
The British mainland was formed from the collision of not two, but three ancient continental land masses, according to new research published in Nature Communications.

TAVR associated with shorter hospital stay, compared to SAVR

Jue, 09/13/2018 - 22:00
Patients who underwent TAVR had a significantly shorter length of stay and were significantly less likely to be transferred to a skilling nursing facility compared to patients who underwent SAVR, a new study finds.

Probiotic use may reduce antibiotic prescriptions, researchers say

Jue, 09/13/2018 - 22:00
The use of probiotics is linked to reduced need for antibiotic treatment in infants and children, according to a review of studies that probed the benefits of probiotics, co-led by a Georgetown investigator.

We have more than enough calories, but what about other nutrients?

Jue, 09/13/2018 - 22:00
A new study is the first to quantitatively map the flow of energy, protein, fat, essential amino acids and micronutrients from 'field-to-fork' at a global level and identify hotspots where nutrients are lost. The study shows that while we produce far more nutrients than is required for the global population, inefficiencies in the supply chain leave many people nutrient deficient.

New method promises fewer side effects from cancer drugs

Jue, 09/13/2018 - 22:00
A recent achievement in the field of protein research allows for better tailored pharmaceuticals with fewer side effects. The method was developed by two University of Copenhagen researchers.

Research on aid tackling modern slavery, forced labor, human trafficking, child labor

Jue, 09/13/2018 - 22:00
A new report released today offers detailed and robust analysis about countries' development spending commitments to achieve target 8.7 of the UN Sustainable Development Goals (end forced labour, modern slavery, human trafficking and child labour). The report, which analyses and visualises how official development assistance was committed, on what, and by whom, is a product of Delta 8.7, a project of the UNU Centre for Policy Research.

Scientists reveal drumming helps schoolchildren diagnosed with autism

Jue, 09/13/2018 - 22:00
Children diagnosed with autism perform better in school if they participate in two 30-minute drumming sessions a week, according to a new scientific study.

Inhaled steroids may increase risk of nontuberculous mycobacteria lung infections

Jue, 09/13/2018 - 22:00
Patients using inhaled steroids to control asthma and other breathing problems may be at greater risk for developing nontuberculous mycobacteria (NTM) lung infections, according to new research published online in the Annals of the American Thoracic Society.

Children who develop ALL may have dysregulated immune function at birth

Jue, 09/13/2018 - 22:00
Neonatal concentrations of eight detectable inflammatory markers were significantly different in children later diagnosed with B-cell precursor acute lymphoblastic leukemia (ALL) compared with controls.

New study shows eczema in African-Americans is more difficult to treat

Jue, 09/13/2018 - 22:00
A new study suggests that African-Americans may face a greater struggle to find effective therapies for atopic dermatitis than European-Americans. The study used molecular profiling to study the skin of both groups.

Páginas