Showing 20 articles starting at article 921

< Previous 20 articles        Next 20 articles >

Categories: Anthropology: General, Biology: Molecular

Return to the site home page

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

Researchers reveal an ancient mechanism for wound repair      (via sciencedaily.com)     Original source 

The study is the first to identify a damage response pathway that is distinct from but parallel to the classical pathway triggered by pathogens.

Anthropology: Cultures Anthropology: General
Published

Long distance voyaging among the Pacific Islands      (via sciencedaily.com)     Original source 

An international team of researchers has used geochemical fingerprinting to reconstruct long-distance voyages between central and western Pacific Islands during the last millennium A.D.

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

Researchers reveal a map to study novel form of cell-to-cell communication      (via sciencedaily.com)     Original source 

An international team of researchers lays the foundation to examine how extracellular RNA and its carrier proteins found in bodily fluids function in a healthy as well as a diseased setting, potentially providing a means to accurately implement early detection and monitor disease processes.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Microbiology Biology: Molecular Chemistry: Biochemistry Chemistry: General
Published

Synthetic biology meets fashion in engineered silk      (via sciencedaily.com)     Original source 

Engineers developed a method to create synthetic spider silk at high yields while retaining strength and toughness using mussel foot proteins.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Genetics Biology: Molecular Chemistry: Biochemistry Chemistry: Organic Chemistry Computer Science: General Engineering: Nanotechnology
Published

Reinforcement learning: From board games to protein design      (via sciencedaily.com)     Original source 

An AI strategy proven adept at board games like Chess and Go, reinforcement learning, has now been adapted for a powerful protein design program. The results show that reinforcement learning can do more than master board games. When trained to solve long-standing puzzles in protein science, the software excelled at creating useful molecules. In one experiment, proteins made with the new approach were found to be more effective at generating useful antibodies in mice than were previous methods. If this method is applied to the right research problems, it likely could accelerate progress in a variety of scientific fields.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Genetics Biology: Molecular Chemistry: Biochemistry Chemistry: Organic Chemistry Mathematics: Modeling Offbeat: Computers and Math Offbeat: General Offbeat: Plants and Animals
Published

AI system can generate novel proteins that meet structural design targets      (via sciencedaily.com)     Original source 

A new machine-learning system can generate protein designs with certain structural features, and which do not exist in nature. These proteins could be utilized to make materials that have similar mechanical properties to existing materials, like polymers, but which would have a much smaller carbon footprint.

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

Engineering the next generation of cell and gene therapies      (via sciencedaily.com)     Original source 

Investigators are developing a novel way to treat amyotrophic lateral sclerosis (ALS) and retinitis pigmentosa using engineered stem cells that may eventually lead to personalized treatments.

Anthropology: General
Published

Grambank shows the diversity of the world's languages      (via sciencedaily.com)     Original source 

What shapes the structure of languages? In a new study, an international team of researchers reports that grammatical structure is highly flexible across languages, shaped by common ancestry, constraints on cognition and usage, and language contact. The study used the Grambank database, which contains data on grammatical structures in over 2400 languages.

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

Simple addition to corn bran could boost grain's nutritional value 15-35%      (via sciencedaily.com)     Original source 

What if, by adding a couple of cell layers inside a corn kernel, the grain could become significantly richer in essential nutrients like iron, zinc, and protein? Such an improvement could benefit people who rely on corn for a large portion of their diet, as in many parts of the global south.

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

Study links 'stuck' stem cells to hair turning gray      (via sciencedaily.com)     Original source 

Certain stem cells have a unique ability to move between growth compartments in hair follicles, but get stuck as people age and so lose their ability to mature and maintain hair color, a new study shows.

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

Loops, flags and tension in DNA      (via sciencedaily.com)     Original source 

Two protein complexes carry the major responsibility for the spatial organization of chromosomes in our cell nuclei. DNA tension plays a surprising role in this. Nanoscientists now publish how they have visualized this.

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

New mechanism for DNA folding      (via sciencedaily.com)     Original source 

A hitherto unknown mechanism for DNA folding is described in a new study. The findings provide new insights into chromosomal processes that are vital to both normal development and to prevent disease.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular Chemistry: Biochemistry Chemistry: Organic Chemistry Engineering: Nanotechnology
Published

Novel nanocages for delivery of small interfering RNAs      (via sciencedaily.com)     Original source 

Small interfering RNAs (siRNAs) are novel therapeutics that can be used to treat a wide range of diseases. This has led to a growing demand for selective, efficient, and safe ways of delivering siRNA in cells. Now, in a cooperation between the Universities of Amsterdam and Leiden, researchers have developed dedicated molecular nanocages for siRNA delivery. In a paper just out in the Journal Chem they present nanocages that are easy to prepare and display tuneable siRNA delivery characteristics.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Genetics Biology: Molecular Biology: Zoology Geoscience: Geochemistry
Published

SpyLigation uses light to switch on proteins      (via sciencedaily.com)     Original source 

Scientists can now use light to activate protein functions both inside and outside of living cells. The new method, called light-activated SpyLigation, can turn on proteins that are normally off to allow researchers to study and control them in more detail. This technology has potential uses in tissue engineering, regenerative medicine, and understanding how the body works. The scientists applied their new method to control the glow of a green fluorescent protein derived from Japanese eel muscle.

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

Molecular 'Superpower' of antibiotic-resistant bacteria      (via sciencedaily.com)     Original source 

A species of ordinary gut bacteria that we all carry flourishes when the intestinal flora is knocked out by a course of antibiotics. Since the bacteria is naturally resistant to many antibiotics, it causes problems, particularly in healthcare settings. A study now shows how two molecular mechanisms can work together make the bacterium extra resistant.

Biology: Biochemistry Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Molecular Biology: Zoology
Published

Tracking a new path to octopus and squid sensing capabilities      (via sciencedaily.com)     Original source 

Research has traced the evolutionary adaptations of octopus and squid sensing capabilities. The researchers describe for the first time the structure of an octopus chemotactile receptor, which octopus arms use for taste-by-touch exploration of the seafloor.

Anthropology: General Archaeology: General
Published

Ancient DNA reveals the multiethnic structure of Mongolia's first nomadic empire      (via sciencedaily.com)     Original source 

The Xiongnu, contemporaries of Rome and Egypt, built their nomadic empire on the Mongolian steppe 2,000 years ago, emerging as Imperial China's greatest rival and even inspiring the construction of China's Great Wall. In a new study, researchers find that the Xiongnu were a multiethnic empire, with high genetic diversity found across the empire and even within individual extended elite families. At the fringes of the empire, women held the highest positions of power, and the highest genetic diversity was found among low-status male servants, giving clues to the process of empire building that gave rise to Asia's first nomadic imperial power.

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

How a virus causes chromosomal breakage, leading to cancer      (via sciencedaily.com)     Original source 

Researchers describe how the Epstein-Barr virus exploits genomic weaknesses to cause cancer while reducing the body's ability to suppress it.