Новости за 18.04.2022

Nanuk, the Inuktitut word for polar bear, is an iconic animal, capturing public imaginations and starring in international marketing campaigns. As nanuk has increasingly been used as the poster species for climate change, it has also become separated in the popular imagination from the peoples and communities of the North.

It's easy to feel pessimistic when scientists around the world are warning that climate change has advanced so far, it's now inevitable that societies will either transform themselves or be transformed. But as two of the authors of a recent international climate report, we also see reason for optimism.

As COVID-19 restrictions recede across much of the world, students have navigated changes in modes of learning (from virtual to in-person) and social protocols (for example, no masks).

NASA's Space Launch System (SLS) has been having some problems getting tested since it rolled out onto launch pad 39B last month. These tests, called wet dress rehearsals, are used to find any problems with loading the propellant and verify that all of the rocket's systems are able to handle it being exposed to cryogenics.

Before being accidentally introduced to the New World by the 16th century slave trade, the yellow fever mosquito was a species native only to Africa. Highly adaptable, it has since become an invasive species in North America, but researchers at The Ohio State University may have found a way to squash the pesky population in its juvenile stages.

An analysis of more than 70,000 fossils indicates that mollusk communities were incredibly resilient to major climatic shifts during the last ice age.

Understanding how a crop will grow in various places is key to getting more farmers to grow it. Rye is a cereal grain grown in parts of Europe, and although not a commonly grown crop in other regions, its characteristics make it a valuable option for farmers.

Above Santa Barbara County, the Surface Biology and Geology High-Frequency Time Series, or SHIFT, campaign collects data to understand land and aquatic ecosystems.

Scientists at the Ural Federal University (UrFU) with colleagues from the Arabian Peninsula have improved the radiation protection properties of glass, in particular borate glasses (boron oxide-based glass). They introduced special additives into the basic composition of the glass—heavy metal oxides. This significantly increased the density of the material without affecting its transparency. A description of the experiments and the results of the study was published in the journal Progress in Nuclear Energy.

A free youth development program serving Black children and teens living in a low-income segregated community demonstrated positive long-term educational and financial outcomes in its alumni, according to a study from Ann & Robert H. Lurie Children's Hospital of Chicago published in the journal BMC Public Health.

Employment can bring positive outcomes for people with autism spectrum disorder (ASD), but new analysis says more long-term support is needed to help individuals reach their full potential.

With high biodiversity and rich farmland, San Diego County is exploring ways to put the region's land to use to cut carbon emissions.

West African cuisine is known for its distinct ingredients and flavors, often including a diverse range of plant foods. A traditional meal comprises a starchy staple cooked in a pot, served with a sauce prepared from vegetables, fish or meat. It is often accompanied by pulses. Today, these starchy staples include root crops such as yams, cassava, sorghum, pearl millet and maize.

Zimbabwe is the largest tobacco producer in Africa and in 2018, the crop accounted for about 10% of the country's gross domestic product. Zimbabwe's hopes to become an upper middle-income economy by 2030, therefore, depend quite heavily on the tobacco sector.

Nearly 70 years ago—in its 1954 Brown v. Board decision—the Supreme Court framed racial segregation as the cause of educational inequality. It did not, however, challenge the lengths to which states went to ensure the unequal funding of Black schools.

Companies can go bankrupt due to poor business models, more successful competitors, or a decline in their target consumers. But as glacier retreat and droughts lead to lower river flows, hydroelectric power companies like Alto Maipo SpA ("Alto Maipo") are adding climate change to the list of culprits.

The accuracy of statistics on religious affiliations in sub-Saharan Africa is questionable. This makes it difficult to assess religious trends.

With over 4 feet of annual precipitation in the Northeast United States, drought is not often considered a major factor affecting the region's forests. But warming temperatures cause forests to dry out quicker between rains. Seedlings are especially vulnerable because their nascent root systems can't access moisture deeper in the soil, according to a University of Maine-led study.

Vaccines can be made over 25% more effective by adding left-handed chiral gold nanoparticles as adjuvants, according to a study by an international collaboration in which Brazilian researchers took part. An article reporting the results is published in Nature.

As the COVID-19 pandemic has shown, infectious diseases are a serious threat worldwide, and new strategies are needed to combat them. In recent years, nanotechnology-based antiviral agents have generated promising results. A review in Small Structures summarizes the recent advances in nanomaterial-based antiviral strategies, mainly including antiviral nanodrugs, drug nanocarriers, and nanovaccines.

Skipping ahead in a line is rude, but sometimes it's acceptable. Especially for salt.

With a third year of drought shrinking the creeks that cascade down the eastern Sierra Nevada, the level of Mono Lake has fallen so low it has triggered a 72% reduction in the amount of water Los Angeles can divert from area streams this year.

The image dazzles from a computer screen in the corner of the room: six beams of red-orange light bursting from a luminous Milky Way star.

Surveys on Michigan's lakes and streams are underway in parts of the state, all part of the state's annual effort to collect data to best manage fishery resources.

Scientists at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) have recorded the first North American case of a harmful phytoplasma disease known for its threat to fruit, vegetable and ornamental crops in South America and the Middle East.