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Chemistry
Results 841 - 860 of 3956.
Chemistry - Innovation - 20.01.2023
Researchers unravel the complex reaction pathways in zero carbon fuel synthesis
Researchers have used isotopes of carbon to trace how carbon dioxide emissions could be converted into low-carbon fuels and chemicals. The result could help the chemical industry, which is the third largest subsector in terms of direct CO2 emissions, recycle its own waste using current manufacturing processes.
Physics - Chemistry - 20.01.2023

Researchers at the University of Bonn confirm validity of a central theorem of physics for Bose-Einstein condensates Physicists at the University of Bonn have experimentally proven that an important theorem of statistical physics applies to so-called "Bose-Einstein condensates." Their results now make it possible to measure certain properties of the quantum "superparticles" and deduce system characteristics that would otherwise be difficult to observe.
Chemistry - Health - 19.01.2023

Science + Technology In producing lissodendoric acid A, the team used a method they say may help accelerate the process of drug discovery Science + Technology In producing lissodendoric acid A, the team used a method they say may help accelerate the process of drug discovery -Recreating natural molecules in the laboratory as part of the search for potential new drugs for disease can be difficult, costly and slow.
Chemistry - Life Sciences - 18.01.2023
Stefan Rüdiger appointed as Professor of Protein Chemistry of Disease
Utrecht University has appointed Stefan Rüdiger as Professor of Protein Chemistry of Disease. Chemist Rüdiger and his group aim to tackle diseases that are caused by protein misfolding, such as Alzheimer's disease and Huntington's disease. They focus on how chaperones, proteins that aid other proteins to fold into their proper shape, control protein quality.
Physics - Chemistry - 18.01.2023

Simpler and much more efficient than ever before: A new technology for producing X-ray laser pulses has been developed at TU Wien. The X-rays used to examine a broken leg in hospital are easy to produce. In industry, however, X-ray radiation of a completely different kind is needed - namely, X-ray laser pulses that are as short and high-energy as possible.
Environment - Chemistry - 18.01.2023

Long-term measurements in the urban area of Innsbruck, Austria, show that the fraction of ozone near the surface tends to be overestimated in atmospheric models. Consequently, a fundamental assumption for air quality forecasting has to be reinterpreted for urban areas. Measurements by an international team led by atmospheric scientist Thomas Karl of the University of Innsbruck also show that direct nitrogen dioxide emissions are overestimated.
Life Sciences - Chemistry - 18.01.2023

How did life on Earth first emerge? And how was it able to prosper and evolve? researchers are involved in the quest to find answers to these fundamental questions. Since time immemorial, humanity has pondered the question of how life on Earth first began. Ancient cultures declared the creation of the world and the origin of life to be the work of gods and other divine beings.
Chemistry - Physics - 18.01.2023
New ’chain mail’ material is tough and flexible
The individual building blocks of a catenane are polyhedral molecules - a type of adamantane - that link arms to form a 2D mesh or 3D network that is sturdy but flexible. University of California, Berkeley, chemists have created a new type of material from millions of identical, interlocking molecules that for the first time allows the synthesis of extensive 2D or 3D structures that are flexible, strong and resilient, like the chain mail that protected medieval knights.
Chemistry - Materials Science - 17.01.2023

Despite their huge potential, the way perovskite solar cells respond to external stimuli - such as heat or moisture - has a considerable impact on their stability. Researchers at EPFL have identified the cause of degradation and developed a technique to improve stability, bringing us closer to widespread adoption of these cost-effective and efficient solar cells.
Physics - Chemistry - 17.01.2023
Do Electrons Spin?
Deep inside all matter in the universe, electrons are buzzing around and behaving as if they are twirling around on their axes like spinning tops. These "spinning" electrons are fundamental to quantum physics and play a central role in our understanding of atoms and molecules. Other subatomic particles spin, too, and the study of spin has technical applications in the fields of chemistry, physics, medicine, and computer electronics.
Physics - Chemistry - 16.01.2023

"Suppose you knew everything there was to know about a water molecule - the chemical formula, the bond angle, etc.," says experimental physicist Joseph Thywissen . "You might know everything about the molecule, but still not know there are waves on the ocean - much less how to surf them," he says.
Life Sciences - Chemistry - 13.01.2023

Surprising protein behavior could improve our understanding of aging E. coli proteins lacking the ability to reassemble themselves could one day help scientists rethink studies of the human brain Researchers have discovered a surprising anomaly in the behavior of how proteins form, upending long-held assumptions about the way cells produce these crucial molecules and potentially leading to a better understanding of aging and neurodegenerative diseases in humans.
Chemistry - Physics - 11.01.2023
A big step toward ’green’ ammonia and a ’greener’ fertilizer
A chemical plant that produces ammonia, most of which goes into making fertilizer. Industrial production of ammonia, primarily for synthetic fertilizer - the fuel for last century's Green Revolution - is one of the world's largest chemical markets, but also one of the most energy intensive. Globally, the Haber-Bosch process for making ammonia uses about 1% of all fossil fuels and produces 1% of all carbon dioxide emissions, making it a major contributor to climate change.
Materials Science - Chemistry - 10.01.2023
Customized Electrolyte Additives Boost Battery Cell Performance
Phosphazene-Based Electrolyte Additives Stabilize Silicon-Based Lithium-Ion Batteries Silicon (Si) is considered a promising anode material in next-generation lithium-ion batteries (LIB). Its practical application has so far been hindered by challenges such as capacity losses during battery operation.
Computer Science - Chemistry - 08.01.2023

Stefanie Jegelka seeks to understand how machine-learning models behave, to help researchers build more robust models for applications in biology, computer vision, optimization, and more. When deep learning models are deployed in the real world, perhaps to detect financial fraud from credit card activity or identify cancer in medical images, they are often able to outperform humans.
Life Sciences - Chemistry - 05.01.2023

Study by a team of researchers from Freiburg and Kyoto investigates formation of beta-barrel membrane proteins that make up the pores Mitochondria are considered to be the power plants of cells and are essential for human metabolism. Dysfunction in 40 percent of mitochondrial proteins are associated with human diseases, which is why mitochondria also play an important role in medical research.
Chemistry - Physics - 04.01.2023

EPFL chemical engineers have invented a solar-powered artificial leaf, built on a novel electrode which is transparent and porous, capable of harvesting water from the air for conversion into hydrogen fuel. The semiconductor-based technology is scalable and easy to prepare. A device that can harvest water from the air and provide hydrogen fuel-entirely powered by solar energy-has been a dream for researchers for decades.
Physics - Chemistry - 04.01.2023
Cheap, sustainable hydrogen through solar power
Withstanding high temperatures and the light of 160 suns, a new catalyst is 10 times more efficient than previous sun-powered water-splitting devices of its kind Study: Solar-to-hydrogen efficiency of >9% in photocatalytic water splitting (DOI: 10.1038/s41586'022 -05399-1) A new kind of solar panel, developed at the University of Michigan, has achieved 9% efficiency in converting water into hydrogen and oxygen-mimicking a crucial step in natural photosynthesis.
Chemistry - Computer Science - 03.01.2023

Researchers have developed a modular system for the simple and inexpensive production of security inks. It is based on polymers and could also be used in solar power plants and screens in the future. Novel fluorescent dyes developed by researchers are relatively simple and inexpensive to produce. The dyes are polymers with a modular structure.
Environment - Chemistry - 29.12.2022
Old Christmas trees could be saved from landfill to make renewable fuels
Seven million Christmas trees end up in landfill in the UK each year, releasing an estimated 100,000 tonnes of harmful greenhouse gases into the atmosphere New research has found a more efficient, simplified process for using pine needles to produce formic acid, for use in hydrogen fuel cells, as a food preservative and in agricultural and industrial manufacturing Pine needles collected after Christmas and processed in this way could be used to
Environment - Mar 25
UCalgary expedition, with NASA, Canadian and European space agencies, sets out to better understand state of Arctic ice
UCalgary expedition, with NASA, Canadian and European space agencies, sets out to better understand state of Arctic ice

Social Sciences - Today
Young people's wellbeing is improving in Greater Manchester, major survey finds
Young people's wellbeing is improving in Greater Manchester, major survey finds
Environment - Today
Australia's environment is improving but climate change is 'accelerating' damage to ecosystems and wildlife
Australia's environment is improving but climate change is 'accelerating' damage to ecosystems and wildlife

Psychology - Mar 23
The grief myth: it doesn't come in stages or follow a checklist - like love, it endures
The grief myth: it doesn't come in stages or follow a checklist - like love, it endures
History & Archeology - Mar 23
The UV has played a part in the discovery of a 3,500-year-old loom that sheds light on key aspects of the Bronze Age textile revolution
The UV has played a part in the discovery of a 3,500-year-old loom that sheds light on key aspects of the Bronze Age textile revolution

Innovation - Mar 23
The University of Valencia launches ClioViz, an open digital platform for accessing cultural heritage data
The University of Valencia launches ClioViz, an open digital platform for accessing cultural heritage data

Social Sciences - Mar 23
Study links higher concentration of pokie machines to increase in family and domestic violence
Study links higher concentration of pokie machines to increase in family and domestic violence

Health - Mar 23
Screening blitz could achieve cervical cancer elimination among Indigenous communities within a generation
Screening blitz could achieve cervical cancer elimination among Indigenous communities within a generation

Computer Science - Mar 20
New computer chip material inspired by the human brain could slash AI energy use
New computer chip material inspired by the human brain could slash AI energy use











