Showing 20 articles starting at article 121

< Previous 20 articles        Next 20 articles >

Categories: Chemistry: Organic Chemistry, Paleontology: General

Return to the site home page

Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography Paleontology: Climate Paleontology: Fossils Paleontology: General
Published

Ancient ocean slowdown warns of future climate chaos      (via sciencedaily.com)     Original source 

When it comes to the ocean's response to global warming, we're not in entirely uncharted waters. A new study shows that episodes of extreme heat in Earth's past caused the exchange of waters from the surface to the deep ocean to decline.

Chemistry: Biochemistry Chemistry: General Chemistry: Organic Chemistry
Published

'Synthetic' cell shown to follow chemical directions and change shape, a vital biological function      (via sciencedaily.com)     Original source 

In a feat aimed at understanding how cells move and creating new ways to shuttle drugs through the body, scientists say they have built a minimal synthetic cell that follows an external chemical cue and demonstrates a governing principle of biology called 'symmetry breaking.'

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Alternative Fuels Energy: Batteries Energy: Fossil Fuels Energy: Technology
Published

A 'liquid battery' advance      (via sciencedaily.com)     Original source 

A team aims to improve options for renewable energy storage through work on an emerging technology -- liquids for hydrogen storage.

Biology: General Biology: Marine Biology: Zoology Ecology: Sea Life Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils Paleontology: General
Published

No bones about it: 100-million-year-old bones reveal new species of pterosaur      (via sciencedaily.com)     Original source 

New research has identified 100-million-year-old fossilized bones discovered in western Queensland as belonging to a newly identified species of pterosaur, which was a formidable flying reptile that lived among the dinosaurs.

Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Molecular Chemistry: Biochemistry Chemistry: Organic Chemistry Computer Science: General Energy: Alternative Fuels Energy: Technology Offbeat: Computers and Math Offbeat: General Offbeat: Plants and Animals
Published

Algae offer real potential as a renewable electricity source      (via sciencedaily.com)     Original source 

The need to transition away from fossil fuels to more sustainable energy production is critical. That's why a team of researchers is looking at a potential power source that not only produces no carbon emissions but removes carbon as it works: algae.

Biology: Biochemistry Biology: Biotechnology Biology: Botany Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Chemistry: Biochemistry Chemistry: Organic Chemistry Ecology: Endangered Species
Published

Changes Upstream: RIPE team uses CRISPR/Cas9 to alter photosynthesis for the first time      (via sciencedaily.com)     Original source 

Scientists used CRISPR/Cas9 to increase gene expression in rice by changing its upstream regulatory DNA. While other studies have used the technology to knock out or decrease the expression of genes, this study, is an unbiased gene-editing approach to increase gene expression and downstream photosynthetic activity. The approach is more difficult than transgenic breeding, but could potentially preempt regulatory issues by changing DNA already within the plant, allowing the plants to get in the hands of farmers sooner.

Biology: Cell Biology Biology: Genetics Biology: Marine Biology: Molecular Chemistry: General Chemistry: Organic Chemistry Ecology: Extinction Ecology: Sea Life Environmental: Ecosystems Environmental: Water Geoscience: Geochemistry
Published

Scientists 'read' the messages in chemical clues left by coral reef inhabitants      (via sciencedaily.com)     Original source 

What species live in this coral reef, and are they healthy? Chemical clues emitted by marine organisms might hold that information. But in underwater environments, invisible compounds create a complex 'soup' that is hard for scientists to decipher. Now, researchers have demonstrated a way to extract and identify these indicator compounds in seawater. They found metabolites previously undetected on reefs, including three that may represent different reef organisms.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Engineering: Nanotechnology Physics: Optics
Published

Crystal engineering modifies 2D metal halide perovskites into 1D nanowires      (via sciencedaily.com)     Original source 

Engineers have created a patent-pending method that creates layered perovskite nanowires with exceptionally well-defined and flexible cavities that exhibit a wide range of unusual optical properties beyond conventional perovskites.

Biology: Biochemistry Biology: General Biology: Zoology Paleontology: Fossils Paleontology: General
Published

Tiny roundworms carve out unique parasitic niche inside pseudoscorpion's protective covering      (via sciencedaily.com)     Original source 

In a parasitic first, a Baltic amber specimen has revealed that millions of years ago tiny worms known as nematodes were living inside of and feeding on the outer protective layer of pseudoscorpions.

Biology: Marine Biology: Zoology Ecology: Animals Ecology: Sea Life Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils Paleontology: General
Published

Fishy mystery of marine reptile solved      (via sciencedaily.com)     Original source 

The identity of a prehistoric marine reptile has finally been revealed after experts discovered that some of its remains actually belonged to fish.

Chemistry: Biochemistry Chemistry: Organic Chemistry
Published

New method of DNA testing: Expanding scientific innovation      (via sciencedaily.com)     Original source 

A team of researchers has developed a new method for target DNA sequence amplification, testing and analysis.

Chemistry: General Chemistry: Organic Chemistry Energy: Batteries Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Electrified charcoal 'sponge' can soak up CO2 directly from the air      (via sciencedaily.com)     Original source 

Researchers have developed a low-cost, energy-efficient method for making materials that can capture carbon dioxide directly from the air. Researchers used a method similar to charging a battery to instead charge activated charcoal, which is often used in household water filters.

Anthropology: General Biology: Biochemistry Biology: Evolutionary Biology: General Biology: Marine Ecology: Sea Life Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils Paleontology: General
Published

'Missing' early sea sponges discovered      (via sciencedaily.com)     Original source 

Geobiologists reported a 550 million-year-old sea sponge that had been missing from the fossil record. The discovery sheds new light on a conundrum that has stumped zoologists and paleontologists for years.

Biology: Marine Biology: Zoology Ecology: Sea Life Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils Paleontology: General
Published

Gigantic Jurassic pterosaur fossil unearthed in Oxfordshire, UK      (via sciencedaily.com)     Original source 

A team of palaeontologists has discovered a fossil of a gigantic flying reptile from the Jurassic period with an estimated wingspan of more than three metres -- making it one of the largest pterosaurs ever found from that era.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Genetics Biology: Molecular Chemistry: Biochemistry Chemistry: Organic Chemistry Environmental: General
Published

Paving the way for hydrogen from algae enzymes      (via sciencedaily.com)     Original source 

Under certain conditions, some algae are able to produce hydrogen -- a much sought-after green energy source. Its production takes place in the unique catalytic center of the unicellular algae and is only possible if certain cofactors of the relevant proteins are present. Researchers have identified how such a cofactor, the so-called hydrogen cluster, is assembled. Specifically, they describe the previously unexplained role of the enzyme HydF, which is involved in the final steps of assembly.

Biology: Evolutionary Biology: Marine Ecology: Nature Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: General
Published

An unlikely hero in evolution: Worms      (via sciencedaily.com)     Original source 

One of Earth's most consequential bursts of biodiversity -- a 30-million-year period of explosive evolutionary changes spawning innumerable new species -- may have the most modest of creatures to thank for the vital stage in life's history: worms.

Biology: General Biology: Zoology Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils Paleontology: General
Published

'Ugly' fossil places extinct saber-toothed cat on Texas coast      (via sciencedaily.com)     Original source 

This fossil looks like a lumpy, rounded rock with a couple of exposed teeth that are a little worse for wear, having been submerged and tumbled along the floor of the Gulf of Mexico for thousands of years before washing up on a beach. But when it was X-rayed a doctoral student saw there was more to the fossil that met the eye: a hidden canine tooth that had not yet erupted from the jaw bone. It was just what researchers needed to identify the fossil as belonging to a Homotherium, a genus of large cat that roamed much of the Earth for millions of years.