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Science News Archive 2023 - Page 378


Page 378 of 444

Researchers realize non-Hermitian exceptional points in degenerate optical cavity

Researchers constructed a non-Hermitian synthetic orbital angular momentum dimension in a degenerate optical cavity, detecting complex energy spectra and exceptional points. The study introduced a new method to investigate these features using wavefront angle–resolved band structure spectroscopy.

SourceUniversity of Science and Technology of China·JournalScience Advances·DateFeb 27, 2023

New York City’s open streets program during COVID pandemic has unintended consequences on noise complaints

A new study found that New York City's Open Streets program, which allocated more public spaces for physical activity and recreation, was associated with higher daily street and sidewalk noise complaints. The researchers also found that census tracts with more affluent populations had more Open Streets segments.

SourceColumbia University's Mailman School of Public Health·DateFeb 27, 2023

Hackers could try to take over a military aircraft; can a cyber shuffle stop them?

Researchers at Sandia National Laboratories and Purdue University have developed a technique called moving target defense to protect against hackers taking control of military jets. This approach involves shuffling network addresses to make it difficult for attackers to access critical systems.

SourceDOE/Sandia National Laboratories·JournalIEEE Transactions on Dependable and Secure Computing·DateFeb 27, 2023

Study identifies four distinct pain trajectories in nursing home residents

Researchers identified four distinct long-term pain trajectories in nursing home residents, shedding light on risk factors associated with persistent pain. The study highlights the need to improve pain assessment and evaluation, particularly among vulnerable populations like those with Alzheimer's disease.

SourceRegenstrief Institute·JournalJournal of the American Geriatrics Society·DateFeb 27, 2023

First study to show childhood obesity is linked to increased risk of four of the five newly proposed subtypes of adult-onset diabetes

A new study published in Diabetologia found that childhood obesity is associated with a higher risk of four out of the five recently proposed subtypes of adult-onset diabetes. The study used Mendelian randomization to investigate the link between childhood body size and the risk of different diabetes subtypes occurring in adults.

SourceDiabetologia·JournalDiabetologia·DateFeb 27, 2023

No frogs or toads left behind on Virginia Tech researchers’ watch

Virginia Tech researchers Traci DuBose and Meryl Mims studied 90 species of frogs and toads using publicly available data from the Global Biodiversity Information Facility. They found that approximately 11% of anuran species are sensitive to climate change but not currently listed as at-risk.

SourceVirginia Tech·JournalBiological Conservation·DateFeb 27, 2023

Researchers uncover new water monitoring technique

Researchers at Texas A&M University have created a new method to monitor flocculation and mixing in real-time, allowing for more precise control over the process. This technique reduces energy consumption by halving the workload and improving precision.

SourceTexas A&M University·JournalACS ES&T Engineering·DateFeb 27, 2023

Study shows one in 25 patients undergoing transesophageal echocardiography-guided transcatheter structural cardiac intervention suffered a major complication

A study analyzing over 12,000 patients found that transesophageal echocardiography-guided transcatheter structural cardiac interventions were associated with a major complication rate of 3.6%. The most frequently reported complication was gastrointestinal bleeding.

SourceUniversity of Alabama at Birmingham·JournalJournal of the American Society of Echocardiography·DateFeb 27, 2023

Artificial intelligence shows potential for solving global challenges

A study by MedUni Vienna's Center for Public Health used GPT-3 to analyze the potential of AI in addressing societal megatrends, including digitization, urbanization, and climate change. The findings suggest that AI can improve understanding of these complex issues and provide suggestions for solutions.

SourceMedical University of Vienna·JournalSystems·DateFeb 27, 2023

Study examines COVID-19 pandemic's effect on Black, Latina women's mental health

A study by University of Illinois researchers found that nearly one-third of Black and Latina women experienced depressive symptoms during the pandemic. Women who prayed reported different effects on depression rates among these two groups, highlighting the need for targeted coping strategies.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalJournal of Racial and Ethnic Health Disparities·TypeSurvey·DateFeb 27, 2023

Spiral pattern gives clue to how high-mass stars form

A team of astronomers discovered a spiral pattern in the disk around a high-mass protostar, indicating gravitational instability. The pattern revealed episodic growth bursts, a key aspect of high-mass star formation theory.

SourceNational Institutes of Natural Sciences·JournalNature Astronomy·TypeObservational study·DateFeb 27, 2023

Black women of childbearing age more likely to have high blood pressure, raising pregnancy risks

A new study found that Black women of childbearing age are twice as likely to have uncontrolled high blood pressure as their white peers, increasing their risk of heart-related complications during pregnancy. Food insecurity was also a significant issue among Black and Hispanic women, with one in four experiencing food insecurity.

SourceAmerican Heart Association·JournalJournal of the American Heart Association·DateFeb 27, 2023

New method for the detection of RNA viruses such as SARS-CoV-2

A new methodology detects RNA viruses like SARS-CoV-2 using polypurine hairpins that capture viral RNA and form a high-affinity triplex. The Triplex Enhanced Nucleic Acid Detection Assay (TENADA) is faster and more effective than the PCR test, providing results in under an hour.

SourceUniversity of Barcelona·JournalInternational Journal of Molecular Sciences·TypeExperimental study·DateFeb 27, 2023

Plugging immune cell leakage from tumors could improve skin cancer treatment

Researchers found that combining a chemical blocker of immune cell exit with immunotherapy stopped melanoma tumor enlargement in over half of mice tested. The study showed that T cells circulate out of tumors, reshaping scientific views of tumor immunology.

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalNature Immunology·TypeExperimental study·DateFeb 27, 2023

Post-COVID syndrome visible in DNA

Researchers found epigenetic changes in post-COVID patients, including genes associated with taste and smell, as well as cell metabolism. These findings may lead to the development of new diagnostic tools for this and similar diseases.

SourceLinköping University·JournalClinical Epigenetics·TypeExperimental study·DateFeb 27, 2023

Rare insect found at Arkansas Walmart sets historic record, prompts mystery

A giant lacewing with a wingspan of roughly 50 millimeters was discovered in Fayetteville, Arkansas, setting a historic record for its appearance in the region. The insect's reappearance suggests there may be relic populations yet to be discovered, and its presence has sparked debate about the impact of human activities on biodiversity.

SourcePenn State·JournalProceedings of the Entomological Society of Washington·TypeObservational study·DateFeb 27, 2023

Don’t be like Darth Vader – study shows negative emotions spark success... but there’s a price

A study by University of Essex found that negative emotions such as anxiety and anger can fuel success, but are linked to poor health and lack of strategic thinking. Positive perceptions and feelings of control, on the other hand, lead to enjoyment of learning and desire for success.

SourceUniversity of Essex·JournalJournal of Personality and Social Psychology·TypeExperimental study·DateFeb 27, 2023

New link between fatal muscle wasting disease gene and cancer discovered

A study published in Cancers found that the DMD gene has a role in oncology, with reduced dystrophin expression associated with advanced stage cancer and reduced survival. The discovery expands our understanding of the gene's significance beyond Duchenne muscular dystrophy.

SourceUniversity of Portsmouth·JournalCancers·TypeMeta-analysis·DateFeb 27, 2023

Cells avoid multitasking

Researchers at the University of Groningen discovered that cells separate essential biochemical reactions into different time periods. This separation explains metabolic oscillations leading up to cell division and has implications for our understanding of cellular physiology, cancer, and aging.

SourceUniversity of Groningen·JournalNature Metabolism·TypeExperimental study·DateFeb 27, 2023

Nanosatellite shows the way to RNA medicine of the future

Scientists at Aarhus University and Berkeley Laboratory developed a method called RNA origami to design artificial RNA nanostructures. The technique allowed for the discovery of rules and mechanisms for RNA folding that will make it possible to build more ideal RNA particles for use in RNA-based medicine.

SourceAarhus University·JournalNature Nanotechnology·TypeExperimental study·DateFeb 27, 2023

HIV: Third case in the world of probable cure after a bone marrow transplant

After a stem cell transplant from a donor with the CCR5-delta 32 mutation, a man was able to stop his antiretroviral treatment without viral resurgence. Four years later, no HIV virus could be detected in his body, indicating probable cure. This case joins two previous reported cases and offers further proof that HIV can be cured.

SourceInstitut Pasteur·JournalNature Medicine·DateFeb 26, 2023

Black people less likely to receive dementia-related medications

A preliminary study by the American Academy of Neurology found that Black people with dementia are receiving dementia-related medications less often than white people. The study revealed significant disparities in access to treatments, with Black patients receiving fewer prescription types compared to their white counterparts.

SourceAmerican Academy of Neurology·DateFeb 26, 2023

Who are the first ancestors of present-day fish?

A new study by Institut Pasteur reveals that the 'bony-tongues' and 'eels' are genetically linked, shedding light on the evolutionary history of teleost fishes. The researchers sequenced genomes of several species and reconstructed relationships between different fish groups.

SourceInstitut Pasteur·JournalScience·DateFeb 26, 2023

Lower frequency of vegetable and fruit intake linked to higher risk of death regardless of chronic kidney disease (CKD) status

A new study found that a lower frequency of vegetable and fruit intake was associated with a higher risk of death in patients with and without chronic kidney disease (CKD), regardless of their CKD stage. Higher fruit and vegetable intake is generally linked to lower mortality risk in the general population.

SourceNiigata University·JournalJournal of Renal Nutrition·DateFeb 26, 2023

How the brain’s recycling system breaks down in Parkinson’s Disease

Researchers identified a gene linked to Parkinson's Disease also contributes to cell debris buildup in the brain. Autophagy disruption leads to toxic waste accumulation and neuron death, hallmarks of the disease. The discovery could pave the way for new, more effective treatments by targeting autophagy.

SourceUniversity of Queensland·JournalNeuron·TypeExperimental study·DateFeb 26, 2023

New hydrogel stem cell treatment repairs injured brain tissue in mice

Researchers have developed a new 'hybrid' hydrogel that safely delivers stem cells to damaged brain tissue, repairing injuries in mice. The breakthrough solves a long-standing challenge and paves the way for potential treatments beyond the brain.

SourceUniversity of Melbourne·JournalNature Communications·TypeExperimental study·DateFeb 26, 2023

Being flexible is key to protecting mental wellbeing in people with chronic pain

A new study found that chronic pain's biggest threat to mental wellbeing isn't intensity, but how it interferes with daily activities. Researchers discovered that people with chronic pain who maintain flexible goals and adapt to obstacles tend to have better mental wellbeing.

SourceEdith Cowan University·JournalInternational Journal of Environmental Research and Public Health·TypeSurvey·DateFeb 26, 2023

BasePairPuzzle: A new way to teach students about nucleobase pairing

BasePairPuzzle is a new DNA molecular model that accurately represents intermolecular interactions, including hydrogen bonds. Students can visualize and experience the sensation of molecules interacting with each other using this innovative 3D-printed model.

SourceSophia University·JournalJournal of Chemical Education·TypeExperimental study·DateFeb 26, 2023

Let's get wasted and apply some deep thinking to rubbish

Researchers are developing a deep learning model to predict where waste is accumulating in cities and how often public bins should be cleared. This can help councils optimise their waste management services, schedule bin clearances and relocate rarely used bins.

SourceUniversity of South Australia·JournalInternational Journal of Environmental Research and Public Health·TypeData/statistical analysis·DateFeb 26, 2023

New treatment for COVID-19 is made from plants

Researchers at Arizona State University describe an innovative therapy using transient expression in tobacco plants to produce a monoclonal antibody against SARS-CoV-2. This class 4 mAb provides key advantages over existing treatments, including mutation resistance and universal protection against emerging variants.

SourceArizona State University·JournalPlant Biotechnology Journal·TypeExperimental study·DateFeb 25, 2023

The price of cancer

The study estimates the global economic cost of cancers to fall around $25.2 trillion in international dollars by 2050, accounting for 0.55% of global GDP. Lung cancer is identified as the type with the highest economic burden, followed by colon and rectum cancer, breast cancer, liver cancer, and leukemia.

SourceInternational Institute for Applied Systems Analysis·JournalJournal of the American Medical Association·DateFeb 24, 2023

Palliative care doesn’t improve psychological distress

A Rutgers study found no statistically significant improvements in patient or caregiver anxiety, depression, or psychological distress in palliative care interventions. The researchers identified conceptual and methodological problems in the literature, including excluding patients with existing mental health conditions from studies.

SourceRutgers University·JournalJournal of Pain and Symptom Management·TypeMeta-analysis·DateFeb 24, 2023

Mitigating heat impacts for cooler cities

Dr. Yuliya Dzyuban's research focuses on mitigating heat impacts in cities using smart urban design, thermal perceptions, and decision support systems. Her work aims to create a digital twin called DUCT that combines human perceptions, health, and microclimate data to design more comfortable cities.

SourceSingapore Management University·DateFeb 24, 2023

A simpler way to track the spread of infectious diseases

Researchers at Instituto Gulbenkian de Ciencia developed a computational method to simplify the analysis of social contacts, revealing that communities are organized around a small backbone. This approach preserves community structure and is more effective than existing methods in understanding how diseases spread.

SourceInstituto Gulbenkian de Ciencia·JournalPLOS Computational Biology·DateFeb 24, 2023

A new epigenetic brain defense against recurrence of opioid use

Researchers discovered HDAC5 plays a critical role in limiting heroin-associated memories and drug-seeking behavior. By regulating gene expression, HDAC5 opposes powerful drug cues that trigger relapse.

SourceMedical University of South Carolina·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateFeb 24, 2023

Reaching like an octopus: A biology-inspired model opens the door to soft robot control

A multidisciplinary team developed a physiologically accurate model of octopus arm muscles, providing insight into biological and design challenges. The model enables energy-shaping control, simplifying arm control design and enabling life-like motion in soft robots.

SourceUniversity of Illinois Grainger College of Engineering·JournalProceedings of the Royal Society A Mathematical Physical and Engineering Sciences·DateFeb 24, 2023

Could a naturally occurring amino acid lead us to a cure for COVID-19?

Researchers have found that the naturally occurring amino acid ALA can reduce the expression of ACE2 on cell membranes, potentially lowering SARS-CoV-2's infectious capabilities. The study also reveals an underlying mechanism involving the production of heme, which is boosted by co-administering ALA with an iron source.

SourceTokyo Institute of Technology·JournalPLOS ONE·TypeExperimental study·DateFeb 24, 2023

The far-reaching consequences of child abuse

A new study published by researchers at Charité - Universitätsmedizin Berlin found a significant link between early childhood trauma experienced by mothers and various health problems in their children. The research analyzed data from over 4,300 American mothers and their children, revealing that children of mothers with adverse experi...

SourceCharité - Universitätsmedizin Berlin·JournalThe Lancet Public Health·DateFeb 24, 2023