ScienceDaily: Most Popular News


Cancer: Immunotherapies without side effects?

Posted: 03 Jul 2021 09:05 AM PDT

Immunotherapy has revolutionized the field of cancer treatment. However, inflammatory reactions in healthy tissues frequently trigger side effects that can be serious. Scientists have succeeded in establishing the differences between deleterious immune reactions and those targeting tumor cells that are sought after. It appears that while the immune mechanisms are similar, the cell populations involved are different. This work makes it possible to envisage targeted and less dangerous treatments for cancer patients.

Solar hydrogen for Antarctica: Advantages of thermally coupled approach

Posted: 02 Jul 2021 12:43 PM PDT

Their conclusion: in extremely cold regions, it can be considerably more efficient to attach the PV modules directly to the electrolyser, i.e. to thermally couple them. This is because the waste heat from the PV modules increases the efficiency of electrolysis in this environment. The results of this study are also relevant for other cold regions on Earth, such as Alaska, Canada, and high mountain regions, for example. In these places, solar hydrogen could replace fossil fuels such as oil and petrol.

Air pollution during pregnancy may affect growth of newborn babies

Posted: 02 Jul 2021 12:43 PM PDT

Maternal exposure to air pollution during pregnancy has often been linked to adverse effects on the health of the newborn. However, there are very few studies on the subject. A study has just concluded that the stages most sensitive to air pollution are the early and late months of pregnancy.

New insights into the assembly of photosynthetic membranes

Posted: 02 Jul 2021 12:43 PM PDT

An international study has elucidated the structure of a protein that is required for the assembly and stability of photosynthetic membranes.

Neurobiology: How mice see the world

Posted: 02 Jul 2021 12:43 PM PDT

Researchers have developed an open-source camera system that images natural habitats as they appear to rodents.

Smart technology is not making us dumber

Posted: 02 Jul 2021 12:43 PM PDT

There is no scientific evidence that shows that smartphones and digital technology harm our biological cognitive abilities.

Why does Mercury have such a big iron core? Magnetism!

Posted: 02 Jul 2021 12:43 PM PDT

A new study disputes the prevailing hypothesis on why Mercury has a big core relative to its mantle. For decades, scientists argued that hit-and-run collisions blew away much of Mercury's rocky mantle and left the big, dense, metal core inside. But new research reveals that collisions are not to blame -- instead, the density, mass and iron content of a rocky planet's core is influenced by its distance from the sun's magnetic field.

After routing de Soto, Chickasaws repurposed Spanish objects for everyday use

Posted: 02 Jul 2021 12:43 PM PDT

Archaeologists have unearthed a rare trove of more than 80 metal objects in Mississippi thought to be from Hernando de Soto's 16th-century expedition through the Southeast. Many of the objects were repurposed by the resident Chickasaws as household tools and ornaments, an unusual practice at a time when European goods in North America were few and often reserved for leaders.

A globally important microbial process hidden on marine particles

Posted: 02 Jul 2021 12:43 PM PDT

Nitrogen is essential for all life on Earth. In the global oceans however, this element is scarce, and nitrogen availability is therefore critical for the growth of marine life. Some bacteria found in marine waters can convert nitrogen gas (N2) to ammonia (known as N2 fixation), and thereby supply the marine food web with nitrogen.

Insect-sized robot navigates mazes with the agility of a cheetah

Posted: 02 Jul 2021 12:42 PM PDT

Engineers have created an insect-scale robot that can swerve and pivot with the agility of a cheetah, giving it the ability to traverse complex terrain and quickly avoid unexpected obstacles. Small, robust robots like these could be ideal for conducting search and rescue operations or investigating other hazardous situations, such as scoping out potential gas leaks.

Solving a long-standing mystery about the desert's rock art canvas

Posted: 02 Jul 2021 12:42 PM PDT

Petroglyphs are carved in a material called rock varnish, the origins of which have been debated for years. Now, scientists argue it's the result of bacteria and an adaptation that protects them from the desert sun's harsh rays.

Researchers explore how children learn language

Posted: 02 Jul 2021 08:45 AM PDT

New research pinpoints how young children quickly learn language, opening new paths to leverage for machine learning.

Is global plastic pollution nearing an irreversible tipping point?

Posted: 01 Jul 2021 11:09 AM PDT

Current rates of plastic emissions globally may trigger effects that we will not be able to reverse, argues a new study. According to the authors, plastic pollution is a global threat, and actions to drastically reduce emissions of plastic to the environment are 'the rational policy response.'