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Science News for April 14, 2020


Electrospun manuka honey nanofibrous wound dressings

Researchers at Shinshu University developed electrospun manuka honey nanofibrous wound dressings with antimicrobial properties. The composite mats demonstrated effectiveness against Gram-positive and Gram-negative bacterial strains, promoting wound healing and tissue regeneration.

SourceShinshu University·JournalInternational Journal of Biological Macromolecules·DateApr 14, 2020

Mindful yoga reduces testosterone by 29% in women with polycystic ovary syndrome

A study published in The Journal of the American Osteopathic Association found that mindful yoga significantly reduced testosterone levels and improved symptoms of depression and anxiety in women with Polycystic Ovary Syndrome. The practice also showed promise in reducing androgen levels, including DHEA.

SourceAmerican Osteopathic Association·JournalThe Journal of the American Osteopathic Association·DateApr 14, 2020

Study reveals unique physical, chemical properties of cicada wings

A new study reveals that cicada wings are coated in a stew of hydrocarbons, fatty acids, and oxygen-containing molecules, which contribute to their ability to repel water and kill microbes. The ratio of surface chemicals differs between two cicada species, and altering the surface chemicals changes the nanopillar structure.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalAdvanced Materials Interfaces·DateApr 14, 2020

Soybean Innovation Lab provides knowledge that assists soybean production in Africa

The Soybean Innovation Lab helps alleviate hunger and boost local economies in Sub-Saharan Africa by providing research-based solutions to farmers. Studies found that smallholder farmers face significant challenges adopting soybeans as a commercial crop, requiring guidance and support from larger systems.

SourceUniversity of Illinois College of Agricultural, Consumer and Environmental Sciences·JournalInternational Food and Agribusiness Management Review·DateApr 14, 2020

Study points to evidence of stray dogs as possible origin of SARS-CoV-2 pandemic

A University of Ottawa researcher suggests that stray dogs and their intestines may have originated the current SARS-CoV-2 pandemic. The study found that coronaviruses in dog intestines have a similar genetic signature to SARS-CoV-2, with low levels of CpG dinucleotides that evade human antiviral defenses.

Flamingos form firm friendships

A five-year study reveals that flamingos consistently spend time with specific close 'friends', forming complex social bonds, including 'married' couples and same-sex friendships. Flamingos' long-lasting friendships are stable over years, suggesting they play a crucial role in survival.

SourceUniversity of Exeter·JournalBehavioural Processes·DateApr 14, 2020

New study indicates exercise can help prevent liver cancer

A new study found that exercise can prevent the development of liver cancer in obese mice with fatty liver disease. The research suggests that voluntary exercise exerts its protective effects via molecular signaling pathways, including tumor suppressor gene p53 and stress-activated protein kinase JNK1.

SourceElsevier·JournalJournal of Hepatology·DateApr 14, 2020

Self-isolation or keep calm and carry on -- the plant cell's dilemma

Plant cells must balance trade-offs between communication, resource exchange, and protection against pathogens like fungi and bacteria. Researchers discovered that chitin perception in plasmodesmata triggers specific signaling pathways that allow cells to isolate themselves, regulating vital processes independently of immune responses.

SourceJohn Innes Centre·JournalProceedings of the National Academy of Sciences·DateApr 14, 2020

Soot may only be half the problem when it comes to cookstoves

Research reveals that organic carbon particles in cookstove emissions are equally potent agents of atmospheric warming as black carbon, with potential health risks from high molecular weight polycyclic aromatic hydrocarbons. The study's findings have significant implications for regional climate change and Paris Agreement targets.

SourceWashington University in St. Louis·JournalEnvironmental Science & Technology Letters·DateApr 14, 2020

The power of light

Researchers at University of California - Santa Barbara develop ultraviolet LEDs that can decontaminate surfaces, floors, and HVAC systems. The technology has the potential to sanitize personal protective equipment, medical settings, and public spaces without causing burns or eye damage.

How cells recognize uninvited guests

A research team at the University of Bonn has discovered that the TLR8 immune sensor plays a crucial role in defending human cells against bacteria and other pathogens. The enzymes RNaseT2 and RNase2 break down bacterial RNA into characteristic fragments, allowing TLR8 to recognize and respond to the invasion.

SourceUniversity of Bonn·JournalImmunity·DateApr 14, 2020

Scoring system empowers surgery departments to prioritize medically necessary operations

A new scoring system, Medically Necessary Time-Sensitive (MeNTS) Prioritization, helps surgeons prioritize medically necessary operations. The system assesses the risk of viral transmission to healthcare professionals and utilization of scarce hospital resources. It guides decision-making for surgeries during the COVID-19 pandemic.

SourceAmerican College of Surgeons·JournalJournal of the American College of Surgeons·DateApr 14, 2020

Public policies that target crime reduction around parks can directly benefit communities

A University of Illinois study finds that reducing crime near public parks can unlock significant environmental value, with estimated gains of almost $7 billion in Chicago, Philadelphia, and New York. This highlights the importance of safety in unlocking park amenities for communities, particularly in high-crime neighborhoods.