Early treatment with the experimental antiviral drug remdesivir significantly reduced clinical disease and damage to the lungs of rhesus macaques infected with SARS-CoV-2, the coronavirus that causes COVID-19, according to National Institutes of Health scientists.

For millennia, metallurgists have been meticulously tweaking the ingredients of steel to enhance its properties. As a result, several variants of steel exist today; but one type, called martensitic steel, stands out from its steel cousins as stronger and more cost-effective to produce. Hence, martensitic steels naturally lend themselves to applications in the aerospace, automotive and defense...

Data privacy laws require encryption and, in some cases, transforming the original data to 'protected data' before it's released to external parties.

Researchers have synthesized nanoparticles that can be induced by a change in pH to release a deadly dose of ionized iron within cells. This mechanism could potentially open up new approaches to the targeted elimination of malignant tumors.

Scientists have theorized that organometallic halide perovskites -- a class of light harvesting 'wonder' materials for applications in solar cells and quantum electronics -- are so promising due to an unseen yet highly controversial mechanism called the Rashba effect. Scientists have now experimentally proven the existence of the effect in bulk perovskites.

A recent study shows that less than one-third of the world's population could currently meet their demand for food produced in their local vicinity.

Diseases with a genetic cause could be treated by supplying a correct version of the faulty gene. However, in practice, delivering new genetic material to human cells is difficult. A promising method for the delivery of such genes involves the use of DNA/lipid complexes (lipoplexes). Scientists have now used advanced simulations to investigate how these lipoplexes deliver DNA fragments into cells....

The point when human embryonic stem cells irreversibly commit to becoming specialized has been identified by researchers.

What do you get when you cross a novel approach to water harvesting with a light fog? The answer: a lot more water than you expected.

mRNAs program the synthesis of proteins in cells, and their functional lifetimes are dynamically regulated. Researchers have now shown why blueprints that are more difficult to decipher have shorter lifetimes than others.

Once a cancer patient's tumors develop resistance to chemotherapy, the prognosis can be poor. However, inhibiting a key gene involved in multidrug resistance, MDR1, has not improved outcomes. A new study offers a reason, revealing unintended downstream effects on immune system cells.

Inspired by how human bone and colorful coral reefs adjust mineral deposits in response to their surrounding environments, researchers have created a self-adapting material that can change its stiffness in response to the applied force. This advancement can someday open the doors for materials that can self-reinforce to prepare for increased force or stop further damage.

In the world of allergy diagnostics, the familiar blood samples and unpleasant skin prick procedures for testing allergen tolerance may soon be a thing of the past. A team of researchers has demonstrated that sufficient quantities of allergy antibodies for a diagnosis can be effectively measured in nasal secretions.

So far, it has been difficult to analyze the functions of lipid molecules in living cells. Researchers have now developed chemical tools that can be activated by light and used to influence lipid concentration in living cells. This approach could enable medical doctors to work with biochemists to identify what molecules within a cell do.

A new study estimating the size of the Samoan population using contemporary genomic data found that the founding population remained low for the first 1,500 years of human settlement, contributing to understanding the evolutionary context of the recent rise in obesity and related diseases.

A new report on the emergence of agriculture in highland Papua New Guinea shows advancements often associated with a later Neolithic period occurred about 1,000 years' earlier than previously thought.

In the first study of its kind, researchers provide evidence that an alternative imaging technique could someday replace current methods that require potentially harmful radiation.

The archaeological record is littered with feces, a potential goldmine for insights into ancient health and diet, parasite evolution, and the ecology and evolution of the microbiome. The main problem for researchers is determining whose feces is under examination.