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Science News Archive April 2022 - Page 10


Page 10 of 37

Controlling heat flow in a solid by switching crystal structure dimensionality

Scientists have created a material that can reversibly switch between high and low thermal conductivity by changing its crystal structure dimensionality, opening up new possibilities for thermal management. The material's ability to alter its thermal conductivity allows for more efficient heat flow control.

SourceTokyo Institute of Technology·JournalAdvanced Electronic Materials·TypeExperimental study·DateApr 25, 2022

Membrane bioreactor performs better than the conventional activated sludge process in techno-economy

A study of 20 full-scale WWTPs found MBR performed better than CAS in terms of energy consumption and environmental benefits, with increased marginal environmental benefit and average net profit. The techno-economic feasibility of retrofitting from CAS to MBR is confirmed, especially under strict effluent standards.

SourceHigher Education Press·JournalFrontiers of Environmental Science & Engineering·TypeSystematic review·DateApr 25, 2022

US study in over 850,000 patients hospitalized with COVID-19 underscores need for improvement in therapeutic approaches for critically ill

A large nationwide study of 853,219 COVID-19 patients found that all-cause mortality rates remained unchanged at 16%, while survival improved for most levels of disease severity. However, ICU use and mortality rate increased for critically ill patients on invasive mechanical ventilation or ECMO.

A friend, not foe: Parasite in gastrointestinal system found to promote health

A study discovered that a common gut parasite, Blastocystis ST4, has beneficial properties by stabilizing the bacteria ecosystem and promoting quicker recovery from inflammation. The parasite may potentially be translated into probiotics to treat inflammation in patients.

SourceNational University of Singapore, Yong Loo Lin School of Medicine·JournalCellular and Molecular Life Sciences·TypeExperimental study·DateApr 24, 2022

Pregnant women with COVID-19 face greater risk of hospitalisation and ICU admission, strengthening case for vaccination

A new study suggests that pregnant women are five times more likely to be hospitalized and six times more likely to require intensive care treatment compared to non-pregnant women. Vaccination can significantly reduce this risk, with healthy pregnant women being over five times more likely to be hospitalized without vaccination.

Researchers reveal mechanism of oxygen activation on Barium-containing perovskite materials

A research team revealed the mechanism of oxygen activation on Barium-containing perovskite materials. The study discovered that BaO/BaO2 nanoparticles precipitated on the surface of Ba-containing materials under high-temperature oxygen-rich conditions had ultra-high activity for oxygen activation.

SourceDalian Institute of Chemical Physics, Chinese Academy Sciences·JournalScience Advances·TypeCommentary/editorial·DateApr 23, 2022

Population-wide study of COVID-19 vaccination shows that mix-and-match approach to booster vaccination offers the best protection

A population-wide study in Chile shows that a mix-and-match approach to booster vaccination provides the best protection against COVID-19. The study found that heterologous booster vaccines, such as Pfizer-BioNTech or Astra Zeneca, were more effective than using the same vaccine for all three doses.

Danish study finds superbug C. difficile can jump between pigs and humans, providing evidence of zoonotic spread

A Danish study found that the superbug C. difficile can be transmitted from pigs to humans, suggesting a link between animal agriculture and human infections. The study identified multiple antibiotic-resistant genes shared between pig and human isolates, highlighting the potential for zoonotic spread of antimicrobial resistance.

UK study of more than 2,000 patients after hospitalization with COVID-19 shows only around 1 in 4 feel fully recovered after one year

A UK study of over 2,000 COVID-19 patients found that only around 25% feel fully recovered after one year. Women and obese individuals are more likely to experience lower recovery rates. The study highlights the need for effective interventions to address long-term symptoms and improve patient care.

SourceEuropean Society of Clinical Microbiology and Infectious Diseases·JournalThe Lancet Respiratory Medicine·DateApr 23, 2022

Predicting the optical read-out of a qubit from first principles

The study uses many-body perturbation theory to predict the optical properties of negatively charged boron vacancies in hBN, showing that phonons are largely responsible for luminescence. The results suggest that this defect can be used as a nanoscale thermometer with high temperature sensitivity.

SourceNational Centre of Competence in Research (NCCR) MARVEL·JournalPhysical Review Letters·TypeComputational simulation/modeling·DateApr 23, 2022

Baby-OSCAR trial evaluates if selective early treatment of PDA reduces death or BPD at 36 weeks in extreme preterm babies

Researchers found no evidence that early selective treatment with ibuprofen reduces death or moderate to severe bronchopulmonary dysplasia in extreme preterm infants. However, treatment reduced the risk of an open patent ductus arteriosus and surgical treatment for a symptomatic PDA.

SourcePediatric Academic Societies·TypeRandomized controlled/clinical trial·DateApr 22, 2022

Using satellite data to improve a model’s interpretation of albedo improves snowfall simulations on the Tibetan Plateau

Researchers used satellite spectral albedo data to develop a scheme that optimizes albedo parameters at the local level, significantly reducing model albedo overestimation and improving snowfall simulations. This improves the accuracy of water cycle modeling on the Tibetan Plateau.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAdvances in Atmospheric Sciences·DateApr 22, 2022

Making 3D printing truly 3D

A group of researchers from Harvard University developed a novel technique to print entire volumes without support structures, eliminating the limitations of traditional layer-by-layer approach. By using an upconversion process and nano capsules, they create self-supporting resin that hardens in three dimensions.

SourceHarvard University·JournalNature·TypeExperimental study·DateApr 22, 2022

Federal research funding has positive ‘ripple effects’

A new study by Ohio State University researchers found that federal research funding has a positive 'ripple effect', stimulating investigations in new areas and providing unexpected benefits. The study showed that funding mostly goes to hiring people who work on the projects, leading to an increase in productivity and quality of research.

SourceOhio State University·JournalScience Advances·TypeData/statistical analysis·DateApr 22, 2022

Topological synchronization of chaotic systems

Physicists discovered that chaotic systems can synchronize due to the emergence of stable fractal structures. As systems are coupled, these fractals assimilate, causing synchronization. Strong coupling leads to complete synchronization through the 'Zipper Effect', where dominant fractals become identical.

SourceBar-Ilan University·JournalScientific Reports·DateApr 22, 2022

Breakthrough in estimating fossil fuel CO2 emissions

A team of scientists from the University of East Anglia has developed a new method to estimate regional fossil fuel CO2 emissions more accurately and in near real-time. Using atmospheric measurements of O2 and CO2, they can detect changes in emissions with higher frequency and provide valuable insights for climate change policies.

SourceUniversity of East Anglia·JournalScience Advances·TypeData/statistical analysis·DateApr 22, 2022

Research shows how people perceive gender through speech

A study by New York University researchers found that people perceive gender through speech, particularly when using binary terms like 'female' and 'male', which are more distinct from 'feminine' and 'masculine'. The study used a rating scale to assess listeners' perceptions of speakers' genders.

SourceNew York University·JournalJournal of Speech Language and Hearing Research·TypeExperimental study·DateApr 22, 2022

A calorie-reduced diet can not only delay the development of diabetes, but also has a positive effect on the immune system

A recent study published in Microbiome found that a calorie-reduced diet can alter the gut microbiome, improving metabolism and delaying immune senescence. Researchers used a low-calorie diet to investigate its effects on the gut microbiome and its impact on metabolism and the immune system.

SourceDeutsches Zentrum fuer Diabetesforschung DZD·JournalMicrobiome·TypeRandomized controlled/clinical trial·DateApr 22, 2022

Obsession with failure and hunt for perfection linked to burnout, sports study uncovers

A University of Essex-led study found that athletes who fixate on their mistakes and strive for perfection are at risk of psychological difficulty. The research suggests that perfectionistic concerns can lead to athlete burnout, causing them to view achievements as inadequate and create a self-fulfilling performance prophecy.

SourceUniversity of Essex·JournalJournal of Clinical Sport Psychology·TypeSurvey·DateApr 22, 2022

Some cases of long COVID-19 may be caused by an abnormally suppressed immune system, UCLA-led research suggests

A UCLA-led team found that an abnormally suppressed immune system, not a persistently hyperactive one, may be to blame for some cases of long COVID-19. The study suggests boosting immunity in those individuals could be a treatment option.

SourceUniversity of California - Los Angeles Health Sciences·JournalClinical Infectious Diseases·TypeRandomized controlled/clinical trial·DateApr 22, 2022

Why is there no Uber for live music?

A study by Cornell University researchers found that live music platforms face difficulties in valuing intangible qualities, managing complex tasks, and achieving economies of scale. This is due to the industry's fragmented nature, with different types of gigs requiring unique expectations from clients.

SourceCornell University·JournalNew Technology Work and Employment·DateApr 22, 2022

Understanding arteriosclerosis: How blood vessels restructure under pressure

High blood pressure can cause long-lasting changes in the structure of vascular smooth muscle cells, stiffening arterial walls and increasing the risk of cerebrovascular disease. Researchers found that a signaling pathway triggered by E–T coupling is involved in this process, leading to inflammation and vascular remodeling.

SourceNagoya City University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateApr 22, 2022

Pushing the boundaries of space exploration with X-ray polarimetry

The Imaging X-ray Polarimetry Explorer (IXPE) mission enables new measurements of cosmic X-ray sources, such as pulsars, black holes, and neutron stars. With its state-of-the-art telescopes and detectors, IXPE will provide high-quality polarization data of various sources, including supernova remnants, active galaxies, and blazars.

SourceSPIE--International Society for Optics and Photonics·JournalJournal of Astronomical Telescopes Instruments and Systems·DateApr 22, 2022