6,685 articles mezi dny 1.10.2020 a 31.10.2020

BAME groups hit hard again as Covid second wave grips UK nations

As cases surge, figures show the demographics of those most seriously affected by coronavirus remain the same Coronavirus – latest updatesSee all our coronavirus coverageOne of the earliest signs that black, Asian and minority ethnic (BAME) people were being disproportionately harmed by the coronavirus pandemic came when the Intensive Care National Audit and Research Centre (ICNAR) published...

Antibacterial prodrug by targeting intracellular metabolite

National University of Singapore researchers have developed an approach to selectively target pathogenic bacteria by harnessing an intracellular metabolite known as formate, abundant in these bacteria, as a new antimicrobial strategy. Formate is an essential metabolite needed for growth in certain pathogenic strains but is only found in low amounts in mammalian cells.

Support film makes cryo-electron microscopy sharper

A trio of researchers at MRC Laboratory of Molecular Biology has developed a support film for creating sharper images in cryo-electron microscopy. In their paper published in the journal Science, Katerina Naydenova, Peipei Jia and Christopher Russo describe the factors that lead to blurring due to sample movement. They also describe the support film they developed to correct the problem. Micah...

Replacing functional groups with a gold electrode to control reactivity of a molecule

A team of researchers affiliated with several institutions in the Republic of Korea has found that it is possible to replace chemical functional groups with a gold electrode to control the reactivity of a molecule. In their paper published in the journal Science, the group describes attaching target molecules to a gold electrode to change the properties of immobilized molecules and how their...

Rise of online right-wing extremism mapped in landmark study

Researchers from Macquarie and Victoria Universities have published the first study mapping the online activity of right-wing extremists in New South Wales. Their study has revealed a network of highly active, social, and complex communities that is difficult to monitor for potential offline violence and is highly successful in radicalizing at-risk individuals and introducing hateful and extreme...

Managers must listen to workers of all ages on COVID-19 safety

The workplace is full of psychological hazards, including abusive supervisors and mistreatment from customers. But there are also physical hazards like falls from heights, working with faulty equipment and exposure to harsh environments—all outlined in Canada's Occupational Health and Safety Regulations.

The Colorado river's water supply is predictable owing to long-term ocean memory

A team of scientists at Utah State University has developed a new tool to forecast drought and water flow in the Colorado River several years in advance. Although the river's headwaters are in landlocked Wyoming and Colorado, water levels are linked to sea surface temperatures in parts of the Pacific and Atlantic oceans and the water's long-term ocean memory.

Pfizer's breast cancer drug Ibrance fails late-stage study

The latest development comes after an independent data monitoring committee said in May a similar trial comparing Ibrance plus an endocrine therapy to a standalone endocrine therapy to treat early-stage breast cancer was unlikely to meet the main goal. Ibrance is already approved in the United States to treat certain adult patients with advanced breast cancer which has spread to other parts of...

UK R rate edges down to 1.2-1.5 but government scientists cautious

The UK's reproduction "R" number of COVID-19 has edged down to 1.2-1.5 from 1.3-1.6, government scientists said on Friday, adding there was still widespread growth of the epidemic across the country. The daily infection growth rate was between +4% to +9%, compared to +5% to +9% a week...

Large study shows 45,000 new daily COVID infections in England

There are as many as 45,000 new COVID infections in England each day, the largest study on prevalence of the coronavirus in the population said on Friday, adding that a resurgence in the north of the country could be replicated elsewhere in weeks. Prime Minister Boris Johnson is battling to avert a second wave of COVID-19 with local lockdowns, but the study suggests that the number of daily...

Factbox: What is the World Food Programme, and what does it do?

The United Nations' World Food Programme (WFP), which won the Nobel Peace Prize on Friday for its efforts to combat hunger and promote peace, was founded in 1961 at the request of U.S. President Dwight Eisenhower. * The WFP began as an experiment to see if the United Nations system could deliver food aid. * It gained permanent status in 1965 and calls itself the world's largest humanitarian...

Cell wall degrading enzyme is integral for plant parasitism and cross-species grafting

Using the model Orobanchaceae parasitic plant Phtheirospermum japonicum, scientists from Nagoya University and other research institutes from Japan have discerned the molecular mechanisms underlying plant parasitism and cross-species grafting, pinpointing enzyme β-1,4-glucanase (GH9B3) as an important contributor to both phenomena. Targeting this enzyme may help control plant parasitism in crops....

Astronomers produce largest 3-D catalog of galaxies

A team of astronomers at the University of Hawaiʻi at Mānoa Institute for Astronomy (IfA) has produced the world's largest three-dimensional astronomical imaging catalog of stars, galaxies and quasars. The team used data from UH's Panoramic Survey Telescope and Rapid Response System or Pan-STARRS1 (PS1) on Haleakalā. The PS1 3π survey is the world's largest deep multi-color optical survey,...

Development of cost-efficient electrocatalyst for hydrogen production

The key to promoting the hydrogen economy represented by hydrogen vehicles is to produce hydrogen for electricity generation at an affordable price. Hydrogen production methods include capturing by-product hydrogen, reforming fossil fuel, and electrolyzing water. Water electrolysis in particular is an eco-friendly method of producing hydrogen, in which the use of a catalyst is the most important...

Proglacial lakes are accelerating glacier ice loss

Meltwater lakes that form at glacier margins cause ice to recede much further and faster compared to glaciers that terminate on land, according to a new study. But the effects of these glacial lakes are not represented in current ice loss models, warn the study authors.

Britain must nurture its scientific expertise to help save the world from climate crisis | Martin Rees

Clean energy and sustainable food supplies will be the planet’s most pressing issues over the next 30 years“Experts” have had a raised profile during the Covid-19 pandemic, standing – albeit somewhat embarrassed – alongside Boris Johnson during his press conferences. In coping with health-related matters, scientific advice is crucial. We will also need optimally applied science in...