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Science News Archive 2023 - Page 371


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CityU scholars unify color systems using prime numbers

Researchers from City University of Hong Kong developed a unified colour system based on prime numbers, called C<sub>235</sub>, which can represent various colours more efficiently than existing systems like RGB and CMYK. The new colour system has potential applications in designing energy-saving LCD systems and colourizing DNA codons.

SourceCity University of Hong Kong·JournalLight Science & Applications·TypeComputational simulation/modeling·DateMar 2, 2023

Newly identified personalized immunotherapy combination treats an aggressive form of advanced prostate cancer

Researchers discovered a new personalized immunotherapy combination that treats aggressive forms of advanced prostate cancer. By blocking PD-1-expressing macrophages and Wnt/β-catenin pathway activation, the therapy significantly improves response rates in PTEN-deficient cancers.

SourceUniversity of Chicago Medical Center·JournalClinical Cancer Research·TypeExperimental study·DateMar 2, 2023

March issues of American Psychiatric Association journals cover advances in depression treatment, suicide risk screening, and mental health help seeking among Indigenous populations

The March issues of The American Journal of Psychiatry and Psychiatric Services focus on major depression treatment advances and suicide risk screening for Indigenous populations. Journalists can access the publications by emailing press@psych.org.

SourceAmerican Psychiatric Association·JournalAmerican Journal of Psychiatry·DateMar 2, 2023

Obesity puts people at higher risk of diabetes and hypertension than dyslipidemia, especially women

Research reveals obesity increases risk of diabetes and hypertension more significantly in women, with weight loss effective in reducing disease risk. However, merely losing weight is insufficient for reducing dyslipidemia in women, highlighting the need for lifestyle improvement guidance and treatment.

SourceKobe University·JournalScientific Reports·TypeData/statistical analysis·DateMar 2, 2023

Researchers provide proof of the helical coiling of condensed chromosomes

The study confirms the helical coiling of condensed metaphase chromosomes, a concept that has been debated for decades. Researchers used multiple experimental approaches to validate the existence of chromonema coiling in barley and propose a general mechanism for chromosome condensation.

SourceLeibniz Institute of Plant Genetics and Crop Plant Research·JournalNucleic Acids Research·DateMar 2, 2023

Skin samples reveal where southern right whales feed

Researchers analyzed chemical isotopes in 1002 skin samples to study the distribution of southern right whales and long-term environmental changes in the Southern Ocean. The study shows that the whales' foraging grounds have shifted, reflecting changing prey distributions, and that climate change has driven recent shifts.

SourceMacquarie University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateMar 2, 2023

New MIT Sloan research finds Americans are more receptive to counter-partisan messages than previously thought

Researchers found that Americans are more receptive to counter-partisan messages than previously thought, and party loyalty does not significantly distort their processing of evidence. The study used a survey of over 5,000 partisans to test the effect of persuasive messaging on their attitudes.

SourceMIT Sloan School of Management·JournalNature·TypeExperimental study·DateMar 2, 2023

Using radar to predict Alzheimer’s disease and fall accidents

Researchers at Chalmers University of Technology developed a method to predict fall accidents and cognitive illnesses like Alzheimer's disease using radar sensors that track walking patterns. The technology can help healthcare staff make more reliable risk assessments and tailor interventions for improved patient outcomes.

SourceChalmers University of Technology·JournalSensors·TypeData/statistical analysis·DateMar 2, 2023

Toothed whales catch food in the deep using vocal fry

A new study reveals that toothed whales have evolved an air-driven nasal sound production system that operates at different vocal registers. This innovation allows them to produce echolocation calls with remarkable efficiency and access the richest food niches in the deep ocean.

SourceUniversity of Southern Denmark·JournalScience·TypeObservational study·DateMar 2, 2023

How consciousness in animals could be researched

Consciousness in animals may be more nuanced than previously thought. Researchers at Ruhr-University Bochum suggest ten dimensions of consciousness that cannot be ranked. Strong indicators include complex perception and episodic memory, while weak indicators are simple sensory processing and categorization abilities.

SourceRuhr-University Bochum·JournalCognition·DateMar 2, 2023

“COVID rebound” is common, even in untreated patients

A Scripps Research and eMed study found that COVID-19 rebound cases are more common than previously reported, affecting up to 14.2% of Paxlovid-treated patients and 9.3% of untreated patients. Rebound is measured by positive test results or symptom recurrence after initial clearance.

SourceScripps Research Institute·JournalClinical Infectious Diseases·DateMar 2, 2023

How debit cards helped Indonesia’s poor get more food

A digital food voucher system in Indonesia has significantly increased the frequency with which poor households receive their full allocation of food, from 24% to 81%. The program's success was achieved by replacing traditional rice-bag delivery with digital card vouchers, allowing recipients to purchase food themselves.

SourceMassachusetts Institute of Technology·JournalAmerican Economic Review·DateMar 2, 2023

Security vulnerabilities detected in drones made by DJI

Researchers detected 16 security vulnerabilities in DJI drones, including the ability to change serial numbers, override tracking mechanisms, and crash flying drones mid-air. The DJI Mini 2, Air 2, and Mavic 3 models were found to have four severe flaws.

SourceRuhr-University Bochum·DateMar 2, 2023

How gut microbes help mend damaged muscles

Researchers found that gut microbes drive the production of regulatory T cells, which act as immune healers that repair muscle injury. These cells were previously thought to be only produced in the gut, but now it's clear they also play a role in healing damaged livers.

SourceHarvard Medical School·JournalImmunity·TypeExperimental study·DateMar 2, 2023

Insights into the evolution of the sense of fairness

Researchers have found that long-tailed macaques reject inferior rewards more frequently when provided by a human than an automatic feeder, indicating social disappointment. This behavioral pattern is consistent with frustration towards the experimenter's decision, rather than a comparison of rewards with conspecifics.

SourceDeutsches Primatenzentrum (DPZ)/German Primate Center·JournalRoyal Society Open Science·TypeExperimental study·DateMar 2, 2023

AI predicts cancer patient survival by reading doctor's notes

A new AI model developed at the University of British Columbia accurately predicts cancer patient survival using natural language processing to analyze oncologist notes. The model shows over 80% accuracy in predicting six-month, 36-month and 60-month survival rates.

SourceUniversity of British Columbia·JournalJAMA Network Open·TypeComputational simulation/modeling·DateMar 2, 2023

AI improving digestive cancer diagnosis, but data-sharing obstacles remain

The use of AI is improving diagnostic accuracy for digestive cancers, but challenges in data sharing and standardization hinder its widespread application. Researchers surveyed recent applications of AI to these deadly cancers, finding that AI can automate complex processes and detect patterns not visible to humans.

SourceHealth Data Science·JournalHealth Data Science·DateMar 2, 2023

Physicians should screen youth for cyberbullying, social media use

Primary care physicians recommend screening adolescents and young adults for cyberbullying and social media misuse, citing the need for timely intervention due to underreported incidents. Screening tools like R-OBVQ, CBVS, CABS, and MARC can help identify potential risks.

SourceFlorida Atlantic University·JournalPrimary Care Clinics in Office Practice·TypeCommentary/editorial·DateMar 2, 2023

Machine learning to identify cancer type-specific driver mutations for the development of new drug targets and treatment strategies

A POSTECH research team developed a machine learning model that accurately predicts cancer type-specific driver mutations, shedding light on distinct pathological mechanisms across various tumors. The model's performance outperformed current leading methods of detection, with better accuracy and sensitivity.

SourcePohang University of Science & Technology (POSTECH)·JournalBriefings in Bioinformatics·DateMar 2, 2023

Study suggests EHR-focused interventions can significantly reduce unnecessary urine cultures among hospital patients

A study published in AJIC found that EHR-focused interventions reduced unnecessary urine culture orders by 20.9% and 21.6% among patients with indwelling catheters. The interventions included changing the electronic medical record ordering screen to require an indication for the culture.

SourceAssociation for Professionals in Infection Control·JournalAmerican Journal of Infection Control·TypeObservational study·DateMar 2, 2023

Grasshopping robots made possible with new, improved latch control

Researchers at Carnegie Mellon University have developed a latch control system that enables grasshopping robots to perform efficiently on soft substrates. The team discovered that the latch can not only regulate energy output but also mediate energy transfer between the robot and its environment, leading to improved jump performance.

SourceCollege of Engineering, Carnegie Mellon University·JournalJournal of The Royal Society Interface·DateMar 2, 2023

Wildfires in 2021 emitted a record-breaking amount of carbon dioxide

A UC Irvine-led study found that boreal forest fires in North America and Eurasia released nearly half a gigaton of carbon dioxide in 2021, surpassing annual mean emissions between 2000 and 2020. The increased emissions are linked to climate drivers such as warming temperatures and droughts.

SourceUniversity of California - Irvine·JournalScience·DateMar 2, 2023

Think you're good at math? PSU study shows it may be because you had equitable math teachers

A PSU study found that high school students who perceive their math teacher as equitable are more likely to develop a positive math identity. This effect is strongest in racially diverse schools, where students may be more aware of racial biases and stereotypes about math. Equitable teaching can help counteract these biases and promote...

SourcePortland State University·JournalSociology of Education·TypeSurvey·DateMar 2, 2023

AI offers ‘paradigm shift’ in Stanford study of brain injury

Researchers at Stanford University have developed a novel AI-powered approach to analyzing traumatic brain injury, using artificial intelligence to identify the most accurate model of mechanical stress on the brain. This breakthrough could lead to better understanding of when concussions lead to lasting brain damage and inspire new pro...

SourceStanford University School of Engineering·JournalActa Biomaterialia·TypeComputational simulation/modeling·DateMar 2, 2023

Dynamic carbon-nitrogen coupling under global change

The study reveals that nitrogen input stimulates plant primary productivity but decreases microbial activities, while carbon input increases nitrogen fixation and mineralization. This dynamic adjustment of carbon and nitrogen cycles has important implications for modeling ecosystem carbon sequestration under global change.

SourceScience China Press·JournalScience China Life Sciences·DateMar 2, 2023

Ecological improvement of freshwater ecosystems benefits fish and people

A groundbreaking study found that creating shallow water zones enhances fish populations, while coarse wood bundles have positive effects in selected lakes. The approach has stronger long-term effects than narrow species-focused conservation actions.

SourceLeibniz Institute of Freshwater Ecology and Inland Fisheries·JournalScience·TypeExperimental study·DateMar 2, 2023

Existing chest scans offer new opportunities for predicting surgical risks

Researchers found that patients with greater buildup of fatty plaque deposits in the heart's three largest blood vessels had higher chances of developing serious health issues following surgery. This study suggests using existing chest scans to estimate patients' risk of heart attack or death during major surgeries.

SourceNYU Langone Health / NYU Grossman School of Medicine·DateMar 2, 2023

“You throw up, then you cough, then you feel better or die”

A Swedish study of children's drawings during the COVID-19 pandemic found that young children drew detailed images of illness, death, and cancelled activities. The researchers also discovered a high level of health literacy among the children, showing they understood the virus's characteristics and symptoms.

SourceUppsala University·JournalActa Paediatrica·TypeObservational study·DateMar 2, 2023

Most detailed geological model reveals Earth’s past 100 million years

A detailed and dynamic model of the Earth's surface over the past 100 million years provides a high-resolution understanding of its creation and sediment flow to oceans. The model will help scientists predict future changes and understand ocean chemistry.

SourceUniversity of Sydney·JournalScience·TypeComputational simulation/modeling·DateMar 2, 2023

Resistance training improves sleep quality and reduces inflammation in older people with sarcopenia

A recent study found that resistance training significantly improved muscle strength and reduced inflammation in older adults with sarcopenia. The research, conducted by Brazilian researchers, also showed that physical exercise can improve sleep quality and reduce chronic inflammation.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalInternational Journal of Environmental Research and Public Health·DateMar 2, 2023

Pregnant patients with anxiety have altered immune systems

A study published in Brain, Behavior and Immunity found that pregnant women with anxiety have higher levels of cytotoxic T cells and different immune marker activity compared to those without anxiety. This suggests a biological link between anxiety and the immune system during pregnancy and postpartum.

SourceWeill Cornell Medicine·JournalBrain Behavior and Immunity·DateMar 2, 2023

Human norovirus GII.4 exploits unexpected entry mechanism to cause gastroenteritis

Researchers at Baylor College of Medicine discovered that human norovirus GII.4 invades gastrointestinal cells via an unexpected mechanism involving interactions between viral and human cell surface proteins. The findings provide insight into the viral infection process and highlight unique pathways for developing effective therapeutics.

SourceBaylor College of Medicine·JournalNature Communications·TypeExperimental study·DateMar 2, 2023

Earlier take-off could lead to fewer bumblebees and less pollination

A warmer climate is causing bumblebee queens to emerge earlier, potentially disrupting the timing of plant-pollinator interactions. This can lead to reduced biodiversity and lower pollination rates, as some species may not have enough food during their flight period.

SourceLund University·JournalBiodiversity and Conservation·DateMar 2, 2023

UPF research advances the way for the brain to be able to control devices in real time

Researchers at UPF's Center for Brain and Cognition have made significant contributions to advancing brain-computer interface technology. By analyzing the synchronization of alpha band levels between brain regions, they were able to identify lateralized patterns that can be used to control devices in real-time.

SourceUniversitat Pompeu Fabra - Barcelona·JournaleNeuro·TypeObservational study·DateMar 2, 2023

High-flow nasal cannula usage outside of intensive care associated with longer hospital stays, higher costs

A study by Le Bonheur Hospital found that high-flow nasal cannula (HFNC) treatment for mild to moderate bronchiolitis is associated with longer hospital stays and higher costs. HFNC usage outside intensive care units resulted in increased resource utilization for pediatric bronchiolitis patients.

SourceLe Bonheur Children's Hospital·JournalHospital Pediatrics·TypeData/statistical analysis·DateMar 2, 2023