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Science News Archive October 2021 - Page 7


Page 7 of 40

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

U-M Apple Watch Study provides an unprecedented look at the health status of a diverse patient population

The MIPACT study analyzed data from thousands of participants, revealing differences in heart rate, blood pressure, and activity levels by age, race, ethnicity, and clinical conditions. The study's findings have significant implications for clinicians, providing a more complete picture of daily life and resulting health.

SourceMichigan Medicine - University of Michigan·JournalThe Lancet Digital Health·DateOct 26, 2021

Using overpasses as shelter from tornado?

Researchers from the University of Rhode Island studied the interaction between tornado-strength winds and highway overpasses, finding no evidence of wind acceleration under an overpass. The study, published in Physics of Fluids, suggests that using an overpass as a shelter during a tornado may not be safer than other options.

SourceAmerican Institute of Physics·JournalPhysics of Fluids·TypeExperimental study·DateOct 26, 2021

Comparison of a 5 F microtube-irrigated ablation catheter and a general ablation catheter in the treatment of resistant hypertension with renal denervation

A new study published in Cardiovascular Innovations and Applications found that a microtube-irrigated ablation catheter was more effective than a general ablation catheter in reducing blood pressure in patients with resistant hypertension. The study, which followed 60 patients for 12 months, also showed that the microtube-irrigated cat...

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

Long-term immune response to Sputnik-V COVID vaccine

A study published in International Journal of Molecular Sciences found that the Sputnik-V COVID vaccine elicits both robust antibody and T-cell responses. The research suggests that long-term immunity is possible, supporting the effectiveness of the vaccine against local virus variants.

SourceKazan Federal University·JournalInternational Journal of Molecular Sciences·TypeObservational study·DateOct 26, 2021

Scientists find a way to stabilize a promising material for solar panels

Researchers from KTH Royal Institute of Technology have developed a synthetic alloy that increases perovskite cells' durability while preserving energy conversion performance. The new material can survive for several minutes completely immersed in water, retaining its efficiency for over 100 days after manufacturing.

SourceKTH, Royal Institute of Technology·JournalCommunications Materials·TypeExperimental study·DateOct 26, 2021

Fossil dental exams reveal how tusks first evolved and why they are unique only to mammals

Researchers shed light on the evolution of mammalian tusks by tracing them back to ancient mammal relatives called dicynodonts. Dicynodonts had protruding tusks in their upper jaws, but they were not always true tusks – instead, some had enamel-coated teeth that did not fit the definition.

SourceHarvard University, Department of Organismic and Evolutionary Biology·JournalProceedings of the Royal Society B Biological Sciences·DateOct 26, 2021

Women politicians drive spending on education and healthcare -- to a point

Research by University of Colorado Boulder found that women's representation in national legislatures drives spending on education and healthcare. Spending increases sharply when women occupy 15-35% of seats, but levels off beyond 40%. The study suggests critical mass theory is not dead.

SourceUniversity of Colorado at Boulder·JournalPolitical Science Research and Methods·TypeData/statistical analysis·DateOct 26, 2021

Large-scale study of bacterial spot of tomato illuminates the pathogen’s diversity throughout Florida during a production season

A large-scale study characterized 585 strains of the Xanthomonas perforans bacterium in Florida commercial tomato fields, finding associations between farms and transplant facilities as key points of pathogen spread. This research provides insights into the diversity of the pathogen population and potential control strategies for farmers.

SourceAmerican Phytopathological Society·TypeExperimental study·DateOct 26, 2021