2,926 articles mezi dny 1.12.2022 a 31.12.2022

A sustainable path for energy-demanding photochemistry

Many photochemical processes rely on UV light from inefficient or toxic light sources that the LED technology cannot replace for technical reasons. An international team of scientists led by Professor Christoph Kerzig of Johannes Gutenberg University Mainz (JGU) in Germany and Professor Nobuhiro Yanai of Kyushu University in Japan has now developed the first molecular system for the conversion of...

‘Citizen rewilders’ invited to buy shares in Scottish Highlands projects

Firm restoring nature on two estates hopes to give ordinary investors 5% annual return over 10 yearsOrdinary people are being invited to invest in projects to rewild the Scottish Highlands by a company that is restoring nature on two estates and seeking to expand its rewilding portfolio.“Citizen rewilders” can invest a minimum of £50 and up to £200,000 in £10 shares in Highlands Rewilding,...

New and more detailed map of antimicrobial resistance

During the COVID-19 pandemic, the world has become aware of the value of using sewage analyses to monitor disease development in an area. However, at DTU National Food Institute, a group of researchers has been using sewage monitoring from throughout the world since 2016 as an effective and inexpensive tool for monitoring infectious diseases and antimicrobial resistance.

Whispering gallery modes with fractional optical angular momentum in photonic crystal micro-rings

Whispering gallery modes, a type of wave that can travel around concave surfaces, have proved to be promising for the development of new technologies, particularly in photonics. Due to geometrical limitations, in circularly symmetric optical microresonators (i.e., micrometer-scale structures that can confine light) these modes exhibit integer quantized angular momentum values. While numerous...

How could climate change alter our diets?

As climate change alters rainfall and temperatures, and provokes heat waves and droughts, the quality and quantity of crops suffer. Such changes to yields could significantly jeopardize food security for the world's growing population.

New theory explains magnetic trends in high-temperature superconductors

In just about any situation in which electricity is being used, whether it is lighting a bedroom at night, keeping frozen food cold, or powering a car that is taking a commuter to work, some of that electrical energy is lost as heat. This is called resistance. Materials with lower resistance are better at conducting electricity while materials with higher resistance are worse at it.

A targeted approach to reducing the health impacts of crop residue burning in India

To clear the way for planting wheat in November, a farmer in Punjab, India, sets aflame the leftover straw, or stubble, of a harvested rice paddy crop in October. The burning residue fills the air with carbon monoxide, ozone, and fine particulate matter (PM2.5) that will make it harder to breathe for days afterward and for miles around. It's a scene that's replicated on about 2 million farms in...

Flowers show their true colors

A plant common to Japan, Causonis japonica, is the first to show a newly discovered trait. Its flowers can change color depending on the stage of its maturation cycle, and then change back to its original color. Although many flowers have been shown to change color depending on their maturation phase, Causonis japonica is the only known example of bidirectional color change. The pigments involved...

Integrated platform promises to accelerate drug discovery process

Many successful drugs have their origins in natural sources such as plants, fungi, and bacteria, but screening natural products to identify potential drugs remains a difficult undertaking. A new approach using molecular biology, analytical chemistry, and bioinformatics to integrate information from different screening platforms addresses some of the biggest challenges in natural products drug...

Hubble Views a Cloud-Filled, Starry Scene

Portal origin URL: Hubble Views a Cloud-Filled, Starry ScenePortal origin nid: 484145Published: Thursday, December 1, 2022 - 08:00Featured (stick to top of list): noPortal text teaser: Bright, blue-white stars of the open cluster BSDL 2757 pierce through the rusty-red tones of gas and dust clouds in this NASA Hubble Space Telescope image.Portal image: Bright....