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2024

Новости за 18.04.2024

International experts issue renewed call for Global Plastics Treaty to be grounded in robust science

Phys.org 

A letter from members of the Scientists' Coalition for an Effective Plastics Treaty has been published in the journal Science days before the fourth session of the Intergovernmental Negotiating Committee (INC-4) begins in Ottawa, Canada. With some discussions to focus on the mandate for—and then the designation and development of—a science body that will set goals and assessment criteria, the scientists say such a body should incorporate "a robust conflict of interest policy" to ensure unbiased,... Читать дальше...

Novel material supercharges innovation in electrostatic energy storage

Phys.org 

Electrostatic capacitors play a crucial role in modern electronics. They enable ultrafast charging and discharging, providing energy storage and power for devices ranging from smartphones, laptops and routers to medical devices, automotive electronics and industrial equipment. However, the ferroelectric materials used in capacitors have significant energy loss due to their material properties, making it difficult to provide high energy storage capability.

A third of China's urban population at risk of city sinking, new satellite data shows

Phys.org 

Land subsidence is overlooked as a hazard in cities, according to scientists from the University of East Anglia (UEA) and Virginia Tech. Writing in the journal Science, Prof Robert Nicholls of the Tyndall Center for Climate Change Research at UEA and Prof Manoochehr Shirzaei of Virginia Tech and United Nations University for Water, Environment and Health, Ontario, highlight the importance of a new research paper analyzing satellite data that accurately and consistently maps land movement across China.

CEOs' human concern translates into higher stock price, says study

Phys.org 

Compassionate leadership has tangible benefits: CEOs' expressions of empathy correlate with positive stock performance, a study led by the University of Zurich shows. The researchers analyzed data from conference calls between CEOs and financial analysts during the COVID-19 pandemic. The paper is published in the journal Academy of Management Discoveries.

Scientists explore the strategies of defects and nanostructure fabrication for promoting piezocatalytic activity

Phys.org 

As an important chemical raw material, hydrogen peroxide (H2O2) is widely applied in various aspects of industry and life. The industrial anthraquinone method for H2O2 production has the serious flaws, such as high pollution and energy consumption. By using ubiquitous mechanical energy, piezocatalytic H2O2 evolution has been proven as a promising strategy, but its progress is hindered by unsatisfied energy conversion efficiency.



The effects of climate variability on children's migration and childcare practices in sub-Saharan Africa

Phys.org 

Shifting weather caused by climate change, especially drought and heat, is linked to a rise in the number of children being raised outside of their biological parents' households in sub-Saharan Africa, according to a study led by researchers at Penn State. The findings highlight the effects climate change may have on children and social support systems, researchers said, a question that has received relatively little attention from researchers and the policy community.

Why being humble can make you a better leader

Phys.org 

When we consider how leaders get to the top, we might think of somebody like Jordan Belfort, the millionaire stockbroker portrayed by Leonardo DiCaprio in the Wolf of Wall Street. And humility is probably not the word that comes to mind.

Polystyrene microplastics shown to enhance invasion of exotic submerged macrophytes

Phys.org 

Submerged macrophyte invasions and microplastic pollution are major challenges in the context of global change and pose a serious threat to aquatic environments. The presence of microplastics in aquatic ecosystems alters plant function, sediment microbial community structure and ecosystem multifunctionality, but how microplastic pollution affects exotic submerged macrophyte invasions and the mechanisms by which environmental and biological factors play a role are not clear.

Social media for sex education: South African teens explain how it would help them

Phys.org 

Most teenagers dread talking about sex with their parents. Their parents feel the same way. In some societies it's considered taboo to even broach the subject. And, even where sexuality education is taught at schools, research has shown that effective communication between young people and teachers is hindered because of age differences and, in some places, because of the societal taboos.

Analysis shows lone actors more likely to commit terrorist acts than US extremist groups

Phys.org 

Extremist groups like the Ku Klux Klan and the Proud Boys have long been an ugly undercurrent of American culture. But despite these groups' hateful rhetoric, their ranks have largely refrained from committing violent acts over the past three decades, according to research conducted by Andrew Vitek, associate teaching professor of political science and director of the Department of Political Science's counterterrorism option at Penn State.

Estimating uncertainty in atomic spectroscopy

Phys.org 

If you repeat a measurement with the same or different instruments, you'll get slightly different numbers each time. Estimating the uncertainties associated with these numbers turns them into an informative result.

Asbestos in playground mulch—how to avoid a repeat of this circular economy scandal

Phys.org 

Asbestos has been found in mulch used for playgrounds, schools, parks and gardens across Sydney and Melbourne. Local communities naturally fear for the health of their loved ones. Exposure to asbestos is a serious health risk—depending on its intensity, frequency and duration—as it may lead to chronic lung diseases.

Why the kookaburra's iconic laugh is at risk of being silenced

Phys.org 

Once, while teaching a class of environmental science students in China's Hebei University of Science and Technology, I asked who knew what a laughing kookaburra was. There were many blank faces. Then I tilted my head, much like a kookaburra does, and opened my mouth: "kok-kak-KAK-KAK-KAK-KOK-KAK-KOK-kook-kook-kok, kok, kok." I became the "bushman's alarm clock".





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