Latest Science News -- ScienceDaily
Our oceans are suffering, but we can rebuild marine life
Thu, 02 Apr 2020 10:08:58 EDT
It's not too late to rescue global marine life, according to a study outlining the steps needed for marine ecosystems to recover from damage by 2050. The study found many components of marine ecosystems could be rebuilt if we try harder to address the causes of their decline.
Discovery of life in solid rock deep beneath sea may inspire new search for life on Mars
Thu, 02 Apr 2020 08:05:06 EDT
Newly discovered single-celled creatures living deep beneath the seafloor have provided clues about how to find life on Mars. These bacteria were discovered living in tiny cracks inside volcanic rocks after researchers perfected a new method cutting rocks into ultrathin slices to study under a microscope. Researchers estimate that the rock cracks are home to a community of bacteria as dense as that of the human gut, about 10 billion bacterial cells per cubic centimeter.
Understanding how the protein tau moves between neurons yields insight into possible treatments for neurodegenerative diseases
Wed, 01 Apr 2020 15:53:48 EDT
In the fight against neurodegenerative diseases such as frontotemporal dementia, Alzheimer's and Chronic Traumatic Encephalopathy, the tau protein is a major culprit. Found abundantly in our brain cells, tau is normally a team player -- it maintains structure and stability within neurons, and it helps with transport of nutrients from one part of the cell to another.
New CT scoring criteria for timely diagnosis, treatment of coronavirus disease (COVID-19)
Wed, 01 Apr 2020 15:08:33 EDT
Updated CT scoring criteria that considers lobe involvement, as well as changes in CT findings (i.e., ground-glass opacity, crazy-paving pattern, and consolidation), could quantitatively and accurately evaluate the progression of coronavirus disease (COVID-19) pneumonia, according to a new article.
Homo naledi juvenile remains offers clues to how our ancestors grew up
Wed, 01 Apr 2020 15:08:27 EDT
A partial skeleton of Homo naledi represents a rare case of an immature individual, shedding light on the evolution of growth and development in human ancestry, according to a study.
Modern humans, Neanderthals share a tangled genetic history, study affirms
Wed, 01 Apr 2020 15:08:21 EDT
A new study reinforces the concept that Neanderthal DNA has been woven into the modern human genome on multiple occasions as our ancestors met Neanderthals time and again in different parts of the world.
Global nuclear medicine community shares COVID-19 strategies and experiences
Wed, 01 Apr 2020 15:08:15 EDT
In an effort to provide safer working environments for nuclear medicine professionals and their patients, clinics across five continents have shared their approaches to containing the spread of COVID-19. This compilation of strategies, experiences and precautions is intended to support nuclear medicine clinics as they make decisions regarding patient care.
Fish have diverse, distinct gut microbiomes
Wed, 01 Apr 2020 13:08:42 EDT
The rich biodiversity of coral reefs even extends to microbial communities within fish, according to new research. The study reports that several important grazing fish on Caribbean coral reefs each harbor a distinct microbial community within their guts, revealing a new perspective on reef ecology.
Understanding brain tumors in children
Wed, 01 Apr 2020 13:08:29 EDT
The causes of 40% of all cases of certain medulloblastomas -- dangerous brain tumors affecting children -- are hereditary. A genetic defect that occurs in 15% of these children plays a key role by destabilizing the production of proteins. The researchers suspect that protein metabolism defects could be a previously underestimated cause of other types of cancer.
Scientists see energy gap modulations in a cuprate superconductor
Wed, 01 Apr 2020 13:08:27 EDT
Scientists studying high-Tc superconductors have definitive evidence for the existence of a state of matter known as a pair density wave -- first predicted by theorists some 50 years ago. Their results show that this phase coexists with superconductivity in a well-known bismuth-based copper-oxide superconductor.
Traces of ancient rainforest in Antarctica point to a warmer prehistoric world
Wed, 01 Apr 2020 13:08:25 EDT
Researchers have found evidence of rainforests near the South Pole 90 million years ago, suggesting the climate was exceptionally warm at the time.
How dopamine drives brain activity
Wed, 01 Apr 2020 13:08:23 EDT
Using a specialized magnetic resonance imaging (MRI) sensor that can track dopamine levels, neuroscientists have discovered how dopamine released deep within the brain influences distant brain regions.
Blocking the iron transport could stop tuberculosis
Wed, 01 Apr 2020 13:08:14 EDT
The bacteria that cause tuberculosis need iron to survive. Researchers have now solved the first detailed structure of the transport protein responsible for the iron supply. When the iron transport into the bacteria is inhibited, the pathogen can no longer grow. This opens novel ways to develop targeted tuberculosis drugs.
Elephant welfare can be assessed using two indicators
Wed, 01 Apr 2020 13:08:13 EDT
In two new studies, scientists have investigated how to measure stress in semi-captive working elephants. The studies suggest that both physiological and behavioral approaches can be used to reliably assess the well-being of semi-captive Asian elephants.
About the distribution of biodiversity on our planet
Wed, 01 Apr 2020 13:08:09 EDT
Large open-water fish predators such as tunas or sharks hunt for prey more intensively in the temperate zone than near the equator. With this result, a study is challenging a long-standing explanation for the distribution of biodiversity on our planet.
Spina bifida surgery before birth restores brain structure
Wed, 01 Apr 2020 13:08:07 EDT
Surgery performed on a fetus in the womb to repair defects from spina bifida triggers the body's ability to restore normal brain structure, new research has discovered.
Models explain changes in cooking meat
Wed, 01 Apr 2020 13:08:05 EDT
Mathematicians show that by modelling meat as a fluid-saturated matrix of elastic proteins, which are deformed as the fluid moves, cooking behaviors can be simulated more precisely.
Stable perovskite LEDs one step closer
Wed, 01 Apr 2020 13:08:00 EDT
Researchers have developed a perovskite light-emitting diode (LED) with both high efficiency and long operational stability.
Surprising hearing talents in cormorants
Wed, 01 Apr 2020 13:07:54 EDT
The great cormorant has more sensitive hearing under water than in air. This new knowledge may help protect vulnerable bird species.
Plant disease primarily spreads via roadsides
Wed, 01 Apr 2020 11:17:06 EDT
A precise statistical analysis reveals that on the Ă…land Islands a powdery mildew fungus that is a common parasite of the ribwort plantain primarily spreads via roadsides because traffic raises the spores found on roadsides efficiently into the air.