Showing 20 articles starting at article 581

< Previous 20 articles        Next 20 articles >

Categories: Biology: Biochemistry, Geoscience: Earthquakes

Return to the site home page

Geoscience: Earth Science Geoscience: Earthquakes Geoscience: Volcanoes
Published

Highly sensitive fiber optic gyroscope senses rotational ground motion around active volcano      (via sciencedaily.com)     Original source 

Researchers have built a prototype fiber optic gyroscope for high resolution, real-time monitoring of ground rotations caused by earthquakes in the active volcanic area of Campi Flegrei in Naples, Italy. A better understanding of the seismic activity in this highly populated area could improve risk assessment and might lead to improved early warning systems.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Genetics Ecology: Animals Ecology: Endangered Species Ecology: Extinction
Published

Genes provide hope for the survival of Arabia's last big cat      (via sciencedaily.com)     Original source 

The release of captive bred animals carefully selected for their genes can make a significant contribution to the successful recovery of the dwindling wild population and avert the prospect of extinction. Despite revealing extremely low levels of genetic diversity in the wild leopard population in Oman, the research team discovered higher levels of genetic diversity in captive leopards across the region. This important genetic resource has the potential for a major role in successful recovery of the Arabian leopard.

Biology: Biochemistry Biology: Botany Ecology: Endangered Species Ecology: Nature Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geography Geoscience: Severe Weather
Published

The impacts of climate change on food production      (via sciencedaily.com)     Original source 

A new study shows that climate change has led to decreased pollen production from plants and less pollen diversity than previously thought, which could have a significant impact on food production.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Microbiology Ecology: General Ecology: Nature Ecology: Research Environmental: General Geoscience: Environmental Issues
Published

Digging up good news for microbial studies      (via sciencedaily.com)     Original source 

Findings indicate that soil stored under refrigerated or air-dried conditions can still retain the needed information for understanding microbial community composition and structure for many years.

Biology: Biochemistry Biology: Zoology Ecology: Animals
Published

Meerkat chit-chat      (via sciencedaily.com)     Original source 

Researchers unravel the vocal interactions of meerkat groups and show they use two different types of interactions to stay in touch.

Anthropology: Cultures Biology: Biochemistry Biology: Biotechnology Biology: Evolutionary Biology: General Biology: Microbiology Biology: Zoology Ecology: Endangered Species Ecology: Extinction Ecology: Invasive Species Geoscience: Geography Paleontology: Fossils Paleontology: General
Published

Evolutionary history of extinct duck revealed      (via sciencedaily.com)     Original source 

The study's findings show mergansers arrived in the New Zealand region at least seven million years ago from the Northern Hemisphere, in a separate colonisation event to that which led to the Brazilian merganser.

Anthropology: General Biology: Biochemistry Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Paleontology: Early Mammals and Birds Paleontology: Fossils Paleontology: General
Published

Diverse headgear in hoofed mammals evolved from common ancestor      (via sciencedaily.com)     Original source 

From the small ossicones on a giraffe to the gigantic antlers of a male moose -- which can grow as wide as a car -- the headgear of ruminant hooved mammals is extremely diverse, and new research suggests that despite the physical differences, fundamental aspects of these bony adaptations likely evolved from a common ancestor.

Biology: Biochemistry Biology: Cell Biology Biology: Developmental Biology: Genetics Biology: Microbiology
Published

New mechanisms behind antibiotic resistance      (via sciencedaily.com)     Original source 

Two newly discovered mechanisms in bacteria have been identified that can contribute to the development of antibiotic resistance. Changing the number of copies of resistance genes in bacteria increases antibiotic resistance, and can do so very quickly. These two mechanisms, along with a third known mechanism, can occur independently of each other, even within the same bacterial cell.

Environmental: Ecosystems Geoscience: Earth Science Geoscience: Earthquakes Geoscience: Geography Geoscience: Geology Geoscience: Landslides Geoscience: Oceanography
Published

Subduction zone splay faults compound hazards of great earthquakes      (via sciencedaily.com)     Original source 

Groundbreaking research has provided new insight into the tectonic plate shifts that create some of the Earth's largest earthquakes and tsunamis.

Biology: Biochemistry Biology: General Biology: Marine Biology: Zoology Ecology: Sea Life
Published

After hundreds of years, study confirms Bermuda now home to cownose rays      (via sciencedaily.com)     Original source 

Using citizen science, photographs, on-water observations and the combination of morphological and genetic data, researchers have provided evidence that the Atlantic cownose ray has recently made a new home in Bermuda. Results show that after hundreds of years of natural history records, this is a novel migration of Atlantic cownose rays to Bermuda.

Biology: Biochemistry Biology: Biotechnology Biology: Botany Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Genetics Biology: Molecular Ecology: Endangered Species Ecology: Nature Environmental: General
Published

Modern plant enzyme partners with surprisingly ancient protein      (via sciencedaily.com)     Original source 

Scientists have discovered that a protein responsible for the synthesis of a key plant material evolved much earlier than suspected. This new research explored the origin and evolution of the biochemical machinery that builds lignin, a structural component of plant cell walls with significant impacts on the clean energy industry.

Biology: Biochemistry Biology: Cell Biology Biology: Developmental Biology: General Biology: Microbiology
Published

Chronic wasting disease unlikely to move from animals to people      (via sciencedaily.com)     Original source 

A new study of prion diseases, using a human cerebral organoid model, suggests there is a substantial species barrier preventing transmission of chronic wasting disease (CWD) from cervids -- deer, elk and moose -- to people. The findings are consistent with decades of similar research in animal models.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Genetics Biology: Molecular
Published

Sweet taste receptor affects how glucose is handled metabolically by humans      (via sciencedaily.com)     Original source 

The sweet-taste receptor might be the first stop in a metabolic surveillance system for sugar. The receptor is also expressed in certain intestinal cells, where it may facilitate glucose absorption and assimilation, as part of this system. A team found that stimulation and inhibition of the sweet receptor helps regulate glucose metabolism in humans and may have implications for managing such metabolic disorders as diabetes.

Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: General Biology: Genetics Biology: Molecular Ecology: Endangered Species
Published

Scientists discover mechanism of sugar signaling in plants      (via sciencedaily.com)     Original source 

A paper describes how the moving parts of a particular plant protein control whether plants can grow and make energy-intensive products such as oil -- or instead put in place a series of steps to conserve precious resources. The study focuses specifically on how the molecular machinery is regulated by a molecule that rises and falls with the level of sugar -- plants' main energy source.

Anthropology: General Archaeology: General Biology: Biochemistry
Published

Pagan-Christian trade networks supplied horses from overseas for the last horse sacrifices in Europe      (via sciencedaily.com)     Original source 

Horses crossed the Baltic Sea in ships during the Late Viking Age and were sacrificed for funeral rituals. Studies on the remains of horses found at ancient burial sites in Russia and Lithuania show that they were brought overseas from Scandinavia utilizing expansive trade networks connecting the Viking world with the Byzantine and Arab Empires. Up to now, researchers had believed sacrificial horses were always locally-sourced stallions. But these results reveal horses from modern Sweden or Finland traveled up to 1,500 km across the Baltic Sea. The findings also show that the sex of the horse was not necessarily a factor in them being chosen for sacrifice, with genetic analysis showing one in three were mares.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Genetics Biology: Marine Biology: Microbiology Ecology: Sea Life Environmental: Ecosystems Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography
Published

Zombie cells in the sea: Viruses keep the most common marine bacteria in check      (via sciencedaily.com)     Original source 

Marine microbes control the flux of matter and energy essential for life in the oceans. Among them, the bacterial group SAR11 accounts for about a third of all the bacteria found in surface ocean waters. A study now reveals that at times nearly 20% of SAR11 cells are infected by viruses, significantly reducing total cell numbers. The viruses can also transform these once thriving bacteria into zombies, a phenomenon observed for the first time and widespread in the oceans.

Biology: Biochemistry Biology: Biotechnology Biology: Botany Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Molecular
Published

Plants restrict use of 'Tipp-Ex proteins'      (via sciencedaily.com)     Original source 

Plants have special corrective molecules at their disposal that can make retrospective modifications to copies of genes. However, it would appear that these 'Tipp-Ex proteins' do not have permission to work in all areas of the cell, only being used in chloroplasts and mitochondria. A study has now explained why this is the case. It suggests that the correction mechanism would otherwise modify copies that have nothing wrong with them, with fatal consequences for the cell.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Fruit fly wing research offers window into birth defects      (via sciencedaily.com)     Original source 

If fruit fly wings do not develop into the right shape, the flies will die. Researchers have learned how fly embryo cells develop as they need to, opening a window into human development and possible treatments for birth defects.