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Science News Archive 2021 - Page 79


Page 79 of 510

Researchers film fundamental life process

Researchers at the University of Bonn have successfully filmed the nuclear export of protein-building machines, or ribosomes, from the nucleus to the rest of the cell. The study provides new insights into this complex process, which is crucial for understanding how cells produce proteins.

SourceUniversity of Bonn·JournalNature Communications·TypeExperimental study·DateOct 27, 2021

Gastric cells—Plant substance from wine influences acid secretion via a bitter receptor

A study by Veronika Somoza's team found that gallic acid stimulates gastric cells to secrete acid via the bitter receptor TAS2R4. The plant substance affects acid secretion regardless of whether it is added to water or red wine. This discovery provides new insights into the functions of bitter receptors in food ingredients.

SourceLeibniz-Institut für Lebensmittel-Systembiologie an der TU München·JournalJournal of Agricultural and Food Chemistry·TypeExperimental study·DateOct 27, 2021

Hazardous levels of alcohol consumption identified in African hunter-gatherer group

Researchers found that 44.3% of the Mbendjele BaYaka population had hazardous alcohol consumption, associated with mental and physical health harms like high blood pressure and increased diarrhoea rates. The study emphasizes the need for community involvement and socioeconomic changes to address the underlying drivers of poor health.

SourceUniversity of Cambridge·JournalPLOS ONE·TypeObservational study·DateOct 27, 2021

Cells move by controlling the stiffness of their neighbours

Researchers discovered cells can regulate neighboring cell stiffness to facilitate movement, a finding that could aid in understanding developmental disorders and cancer metastasis. This novel mechanism may provide a strategy for slowing or preventing cancer spread by altering tissue stiffness.

SourceeLife·JournaleLife·TypeExperimental study·DateOct 26, 2021

Citizen scientists’ contributions a boon to snowpack modeling, OSU research shows

Researchers from Oregon State University have found that citizen scientist contributions significantly improve snowpack modeling, particularly in high mountain environments. The study leverages data collected by thousands of citizen scientists through the NASA-funded Community Snow Observations project.

SourceOregon State University·JournalHydrology and Earth System Sciences·TypeComputational simulation/modeling·DateOct 26, 2021

The fate of vegetable and endogenous indoles in our body

A recent study has identified the superior antitumor efficacy of LTr1 over commercialized compound DIM, revealing new insights into the metabolism of indole-3-carbinol. The research team discovered that LTr1 is formed through the Michael addition of 3-methyleneindolium to DIM in the upper gastrointestinal tract.

SourceScience China Press·JournalNational Science Review·DateOct 26, 2021

Fibroblasts could serve as new key to enhancing personalized treatment for lung cancer patients

A new study identifies three functional subtypes of cancer-associated fibroblasts (CAF) in lung cancer, which correspond to patients' treatment responses. These subtypes have distinct biological functions and therapeutic implications, suggesting that CAFs could serve as a key to enhancing personalized treatment for lung cancer patients.

SourceMassachusetts General Hospital·JournalCancer Cell·TypeExperimental study·DateOct 26, 2021

Fossil dental exams reveal how tusks first evolved

A new study reveals that tusks originated from ancient mammals before the dinosaurs, with dicynodonts being their closest living relatives. The researchers defined what makes a tusk and found that some dicynodont teeth are indeed tusks, while others have large teeth.

SourceField Museum·JournalProceedings of the Royal Society B Biological Sciences·DateOct 26, 2021

SMART researchers discover new way to generate light through use of pre-existing defects in semiconductor materials

SMART researchers have discovered a practical method to overcome current challenges in the manufacture of indium gallium nitride (InGaN) LEDs with considerably higher indium concentration. The new approach uses intrinsic defects in semiconducting materials to form quantum dots that emit long-wavelength light.

SourceSingapore-MIT Alliance for Research and Technology (SMART)·JournalACS Photonics·TypeExperimental study·DateOct 26, 2021

Enhanced touch screens could help you ‘feel’ objects

Texas A&M researchers are advancing technology to give touch devices the ability to mimic physical objects, enriching virtual environments and reducing audiovisual overload. The goal is to create predictive models for designing devices with maximum haptic effect and minimum sensitivity to users and environmental variations.

SourceTexas A&M University·JournalAdvanced Materials·TypeNews article·DateOct 26, 2021

Singapore study introduces new strategy to treat advanced liver cancer

A Singapore clinical trial has introduced a new way to treat advanced hepatocellular carcinoma by combining nivolumab, an immunotherapy drug, with yttrium-90 resin microspheres radioembolisation. The study shows promising results in treating intermediate and advanced HCC, with an overall response rate of 30.6%.

SourceSingHealth·JournalThe Lancet·TypeRandomized controlled/clinical trial·DateOct 26, 2021

The secret of ultralight but stiff sandwich nanotubes

Researchers from the University of Groningen and Lawrence Livermore National Laboratory created ultra-lightweight yet extremely stiff porous materials by stacking carbon tubes with a strutted tube-in-tube structure. This innovative design enables new applications in micro-electromechanical systems and other small devices.

SourceUniversity of Groningen·JournalNature Materials·DateOct 26, 2021

Radiofrequency ablation of typical atrial flutter combined with atrial tachycardia

A new case study describes successful radiofrequency ablation of typical atrial flutter combined with atrial tachycardia in a 63-year-old patient with pulmonary heart disease. The procedure was performed using the carto3 system, but initial results were inconsistent until remapping confirmed focal atrial tachycardia location.

SourceCompuscript Ltd·JournalCardiovascular Innovations and Applications·DateOct 26, 2021

Total androgen suppression with dose-escalated radiotherapy does not improve overall survival in men with intermediate-risk prostate cancer: Results highlight need for biomarker studies

The NRG-RTOG 0815 trial found that adding androgen suppression to dose-escalated radiotherapy did not improve overall survival, but reduced rates of biochemical failure and distant metastases. Future studies are needed to identify subsets of patients who may benefit from this intervention.

New study reveals heart patients ‘orphaned’ following aortic dissection repair despite ongoing risk of complications and death

Patients who survive aortic dissection repair are at risk for complications and death due to inadequate post-surgical follow-up care. A new study found that only 14% of patients received guideline-recommended imaging surveillance, leaving them vulnerable to a lifetime of sustained risk.

SourceUniversity Health Network·JournalJournal of the American College of Cardiology·TypeData/statistical analysis·DateOct 26, 2021

New X-ray technology: Dark-field X-ray technology improves diagnosis of pulmonary ailments

Researchers at Technical University of Munich have developed a new X-ray method for respiratory diagnostics using dark-field chest imaging, allowing for early detection and treatment follow-up of respiratory ailments. The technology reduces radiation dose by a factor of fifty compared to traditional computed tomography.

SourceTechnical University of Munich (TUM)·JournalThe Lancet Digital Health·TypeExperimental study·DateOct 26, 2021

Scientists discover phenomenon of ultra-long spin relaxation in 2D Van Der Waals magnetic materials

Researchers discovered ultra-long spin relaxation behavior in 2D van der Waals magnetic materials using an all-optical technique. The study reveals the key role of dimensionality and thermal diffusion anisotropy in spin dynamics, providing a research basis for high-frequency devices.

SourceHefei Institutes of Physical Science, Chinese Academy of Sciences·Journal2D Materials·TypeExperimental study·DateOct 26, 2021

Adult stem cells transform faster with two lasers

Scientists from the University of Johannesburg found that shining two lasers on adult stem cells accelerates their transformation into different types of cells. The consecutive irradiation increases proliferation and differentiation under laboratory conditions, paving the way for potential therapies to repair damaged tissues.

SourceUniversity of Johannesburg·JournalBiochimie·TypeExperimental study·DateOct 26, 2021