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Scientific American Science News - Mon, 01/18/2038 - 10:14pm
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Categories: Science News

The moving Martian bow shock

Science News - 1 hour 23 min ago
Physicists throw new light on the interaction between the planet Mars and supersonic particles in the solar wind.
Categories: Science News

When given the chance to pay less, patients choose cheaper prescription drugs

Science News - 1 hour 33 min ago
As prescription drug spending continues to rise in the United States, along with prices for new and well-established drugs, insurers, employers and patients are searching for ways to cut costs. A new study found that a policy called reference pricing is effective at encouraging patients to spend significantly less on prescription drugs by choosing cheaper drugs over name brand options.
Categories: Science News

How cytoplasm 'feels' to a cell's components

Science News - 1 hour 33 min ago
In a study that may guide drug design, researchers find organelles encounter varying levels of resistance, depending on their size and speed, as they move through a cell's cytoplasm.
Categories: Science News

Hormonal tug-of-war helps plant roots navigate their journey through the soil

Science News - 1 hour 34 min ago
A sophisticated mechanism that allows plant roots to quickly respond to changes in soil conditions has been identified by an international research team.
Categories: Science News

Gravity, 'mechanical loading' are key to cartilage development

Science News - 1 hour 34 min ago
Mechanical loading is required for creating cartilage that is then turned to bone; however, little is known about cartilage development in the absence of gravity. Now, bioengineers have determined that microgravity may inhibit cartilage formation. Findings reveal that fracture healing for astronauts in space, as well as patients on bed rest here on Earth, could be compromised in the absence of mechanical loading.
Categories: Science News

miR-122 target sites in liver cancer: study links three genes to patient survival

Science News - 2 hours 2 min ago
A new study shows that a molecule that regulates liver-cell metabolism and suppresses liver-cancer development interacts with thousands of genes in liver cells, and that when levels of the molecule go down, such as during liver-cancer development, the activity of certain cancer-promoting genes goes up. The findings could one day help doctors better predict survival in liver cancer patients and help determine whether the molecule -- called microRNA-122 -- should be developed as an anticancer drug.
Categories: Science News

Speeding up chemical screening to prioritize toxicity testing

Science News - 2 hours 2 min ago
Researchers have developed a high-throughput technique that can determine if a chemical has the potential to activate key genes in seconds rather than the typical 24 hours or more. The technique can be used to prioritize chemicals for in-depth testing to determine their toxicity.
Categories: Science News

Microreactor made to study formation of methane hydrate

Science News - 2 hours 2 min ago
Researchers are using a novel means of studying how methane and water form methane hydrate that allows them to examine discrete steps in the process faster and more efficiently.
Categories: Science News

ShAPEing the future of magnesium car parts

Science News - 2 hours 2 min ago
A new process should make it more feasible for the auto industry to incorporate very lightweight magnesium alloys into structural components. The method has the potential to reduce cost by eliminating the need for rare-earth elements, while simultaneously improving the material's structural properties.
Categories: Science News

No microbes? No problem for caterpillars

Science News - 2 hours 2 min ago
Caterpillars have far less bacteria and fungi inhabiting their gut than other animals and the microbes that inside them seem to lack any identifiable role, aside from occasionally causing disease.
Categories: Science News

How humans and their gut microbes may respond to plant hormones

Science News - 2 hours 2 min ago
A bowl of salad contains more than vitamins and minerals. Plant matter also includes remnants of the hormones plants produce to control how they grow, age, and manage water intake. Recently, scientists have reported that our gut microbes and cells may respond to these hormones and even produce similar molecules of their own. Researchers now explore how plant hormones may influence human health.
Categories: Science News

Scientists find RNA with special role in nerve healing process

Science News - 2 hours 3 min ago
The discovery in lab mice that an 'anti-sense' RNA is expressed after nerve injury to regulate the repair of damage to the nerve's myelin coating could lead to a treatment that improves healing in people.
Categories: Science News

Serotonin may worsen tinnitus

Science News - 2 hours 3 min ago
Millions of people suffer from the constant sensation of ringing or buzzing in the ears known as tinnitus, creating constant irritation for some and severe anxiety for others. Research shows why a common antidepressant medication may worsen the condition.
Categories: Science News

The environment can become a noninvasive therapeutic approach to bolster white matter health

Science News - 2 hours 3 min ago
Those parents you overhear transforming trips to the grocery store into sensory adventures -- telling babies too young to babble that broccoli is GREEN, radishes are RED and tangerines are ORANGE -- are onto something. Being exposed to a complex and stimulating environment rich with new sights, sounds and a full vocabulary can play a powerful role in strengthening infants' developing brains.
Categories: Science News

Infection model developed for tickborne flaviviruses

Science News - 2 hours 3 min ago
Scientists have filled a research gap by developing a laboratory model to study ticks that transmit flaviviruses, such as Powassan virus. Powassan virus was implicated in the death of a New York man earlier this year. The unusual model involves culturing organs taken from Ixodes scapularis ticks and then infecting those organ cultures with flaviviruses.
Categories: Science News

Ancient Earth’s hot interior created 'graveyard' of continental slabs

Science News - 2 hours 42 min ago
Plate tectonics has shaped the Earth's surface for billions of years: Continents and oceanic crust have pushed and pulled on each other, continually rearranging the planet's façade. As two massive plates collide, one can give way and slide under the other in a process called subduction. The subducted slab then slips down through the Earth's viscous mantle, like a flat stone through a pool of honey.
Categories: Science News

Fish stress hormones linked to whether they take the bait

Science News - 2 hours 42 min ago
Take a fish out of water and its stress hormones will go up. Adrenaline and noradrenaline, the 'fight or flight' hormones, peak first, followed more gradually by cortisol. A new study finds that largemouth bass whose cortisol levels rise most after a brief bout of stress are inherently harder to catch by angling.
Categories: Science News

Opioid crisis in Staten Island affects all races, ages, and socioeconomic backgrounds

Science News - 3 hours 11 min ago
Contrary to media reports, the opioid epidemic on New York's Staten Island is not confined to affluent young white residents, and affects all neighborhoods, races, ages, and socioeconomic backgrounds.
Categories: Science News

A silent search for dark matter

Science News - 3 hours 11 min ago
Results from its first run indicate that XENON1T is the most sensitive dark matter detector on Earth. The sensitivity of the detector -- an underground sentinel awaiting a collision that would confirm a hypothesis - stems from both its size and its 'silence.'
Categories: Science News

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