Showing 20 articles starting at article 501

< Previous 20 articles        Next 20 articles >

Categories: Biology: Cell Biology, Offbeat: General

Return to the site home page

     (via sciencedaily.com)     Original source 

A team of researchers has shown for the first time that fasting can reprogram the metabolism of natural killer cells, helping them to survive in the harsh environment in and around tumors, while also improving their cancer-fighting ability.

     (via sciencedaily.com)     Original source 

New research has found that sharks retained high levels of functional diversity for most of the last 66 million years, before steadily declining over the last 10 million years to its lowest value in the present day.

     (via sciencedaily.com)     Original source 

The amount of infectious H5N1 influenza viruses in raw milk rapidly declined with heat treatment in laboratory research. However, small, detectable amounts of infectious virus remained in raw milk samples with high virus levels when treated at 72 degrees Celsius (161.6 degrees Fahrenheit) for 15 seconds -- one of the standard pasteurization methods used by the dairy industry. The authors of the study stress, however, that their findings reflect experimental conditions in a laboratory setting and are not identical to large-scale industrial pasteurization processes for raw milk.

     (via sciencedaily.com)     Original source 

Climate change is making it more difficult to raise cattle -- growth and reproduction are affected by heat -- so it's critical to breed cattle better adapted to a hotter and longer summer. A new study shows it's possible to identify the genes within breeds of cattle that would lead to the sweatiest, heat-tolerant offspring.

     (via sciencedaily.com)     Original source 

Researchers have experimentally generated high-density relativistic electron-positron pair-plasma beams by producing two to three orders of magnitude more pairs than previously reported.

     (via sciencedaily.com)     Original source 

With their 'T-REX' method, researchers developed a glassy, amber-like polymer that can be used for long-term storage of DNA, such as entire human genomes or digital files such as photos.

     (via sciencedaily.com)     Original source 

The new study provides unambiguous evidence that the inner core began to decrease its speed around 2010, moving slower than the Earth's surface.

     (via sciencedaily.com)     Original source 

An analysis of reviews of translational biomedical research reveals that just 5% of therapies tested in animals reach regulatory approval for human use. The umbrella review summarizes other systematic reviews and provides high level evidence that while the rate of translation to human studies is 50%, there is steep drop off before final approval.

     (via sciencedaily.com)     Original source 

Some species of tardigrades are highly and unusually resilient to various extreme conditions fatal to most other forms of life. The genetic basis for these exceptional abilities remains elusive. Researchers have now successfully edited genes using the CRISPR technique in a highly resilient tardigrade species previously impossible to study with genome-editing tools. The successful delivery of CRISPR to an asexual tardigrade species directly produces gene-edited offspring. The design and editing of specific tardigrade genes allow researchers to investigate which are responsible for tardigrade resilience and how such resilience can work.

     (via sciencedaily.com)     Original source 

Paleontologists have identified a new genus of fossil goby, revealing evolutionary secrets of a lineage that stretches back millions of years.

     (via sciencedaily.com)     Original source 

Climate change has many widespread and complicated effects on the well-being of people and the planet, and a new study has now added a surprising one to the list. After analyzing the language used in seven million parliamentary speeches around the world, it shows that high temperatures lead to a significant and immediate reduction in politicians' language complexity.

     (via sciencedaily.com)     Original source 

The small footprint and dim light of white dwarfs, remnants of stars that have burned through their fuel, may make excellent backdrops for studying planets with enough water to harbor life. The trick is spotting the shadow of a planet against a former star that has withered to a fraction of its size and finding that it's a planet that has kept its water oceans for billions of years even after riding out the star's explosive and violent final throes. A new study of the dynamics of white dwarf systems suggests that, in theory, some watery planets may indeed thread the celestial needles necessary to await discovery and closer scrutiny.

     (via sciencedaily.com)     Original source 

This study discovered mini-Neptunes around four red dwarfs using observations from a global network of ground-based telescopes and the TESS space telescope. These four mini-Neptunes are close to their parent stars, and the three of them are likely to be in eccentric orbits.

     (via sciencedaily.com)     Original source 

Researchers have engineered nanosized cubes that spontaneously form a two-dimensional checkerboard pattern when dropped on the surface of water. The work presents a simple approach to create complex nanostructures through a technique called self-assembly.

     (via sciencedaily.com)     Original source 

Researchers used supercomputers to create nearly 4 million simulated images depicting the cosmos.

     (via sciencedaily.com)     Original source 

Engineers have developed microscopic robots, known as microrobots, capable of swimming through the lungs to deliver cancer-fighting medication directly to metastatic tumors. This approach has shown promise in mice, where it inhibited the growth and spread of tumors that had metastasized to the lungs, thereby boosting survival rates compared to control treatments.

     (via sciencedaily.com)     Original source 

An air-filled sac within the birds' lungs is believed to increase the force the birds use to power flight muscles while soaring.

     (via sciencedaily.com)     Original source 

Significant progress has been made in the development of a small device, about the size of a vitamin pill, that can be swallowed and passed through the gastrointestinal tract to sample and help identify the full inventory of microbiome bacteria in an individual.

     (via sciencedaily.com)     Original source 

Scientists have discovered a previously unknown link between two key pathways that regulate the immune system in mammals -- a finding that impacts our understanding of chronic inflammatory bowel diseases (IBD). This family of disorders severely impacts the health and quality of life of more than 2 million people in the United States.

     (via sciencedaily.com)     Original source 

Scientists have for the first time observed how atoms in magnesium oxide morph and melt under ultra-harsh conditions, providing new insights into this key mineral within Earth's mantle that is known to influence planet formation.