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Science News Archive 2024 - Page 420


Page 420 of 484

A new chapter for all-attosecond spectroscopy

A team of researchers from the Max Born Institute has demonstrated a new approach to all-attosecond pump-probe spectroscopy using a compact intense attosecond source. This enables the investigation of extremely fast electron dynamics in the attosecond regime, which is not accessible by current attosecond techniques.

SourceMax Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI)·JournalScience Advances·TypeExperimental study·DateFeb 22, 2024

Fewer nurses linked to delayed care and serious outcomes in emergency departments

A new review of research evidence suggests that having fewer nurses on shift in emergency departments is associated with longer waits, patients leaving without being seen, and a higher number of cardiac arrests. This is linked to increased pressure on the healthcare system due to increasing demand and complex health problems.

SourceUniversity of Southampton·JournalInternational Journal of Nursing·DateFeb 22, 2024

New method for marking neurotransmitter receptors expressed in the living animal brain

Researchers have developed a new method to label naïve neurotransmitter receptor proteins in living animal brains without genetic manipulation. This technique, known as ligand-directed acylimidazole chemistry (LDAI chemistry), uses pulse-chase analysis to track the movement and fate of proteins in real-time.

SourceJapan Science and Technology Agency·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateFeb 22, 2024

Elenagen, a novel DNA immunotherapy for the deadliest form of ovarian cancer, delays disease progression

Researchers created Elenagen, a novel DNA immunotherapy for deadly ovarian cancer, which significantly enhances standard chemotherapy and provides clinical benefits. The study shows that Elenagen delays disease progression in patients with stage III and IV platinum-resistant ovarian cancer.

SourceCureLab Oncology Inc.·JournalFrontiers in Oncology·TypeRandomized controlled/clinical trial·DateFeb 22, 2024

Killer instinct drove evolution of mammals’ predatory ancestors

Researchers found that a significant shift in synapsid jaw function occurred roughly 270 million years ago, linked to a change in predatory behavior with important implications for the evolution of our earliest ancestors. As herbivores grew larger and faster, carnivores adapted to become bigger and better predators to survive.

SourceUniversity of Bristol·JournalCommunications Biology·TypeComputational simulation/modeling·DateFeb 22, 2024

Triboelectric nanogenerators for scientific instruments and devices

Triboelectric nanogenerators (TENGs) are used in various applications, including self-powered sensors, blue energy instruments, high voltage sources, micro/nano-energy devices, and liquid-solid interface probes. TENGs offer unique advantages such as generating self-powered signals without additional energy supply systems.

SourceAdvanced Devices & Instrumentation·JournalAdvanced Devices & Instrumentation·TypeNews article·DateFeb 22, 2024

Moffitt study highlights urgent need to address impact of extreme weather events on cancer survivorship

A recent study from the H. Lee Moffitt Cancer Center highlights the significant gaps in understanding and addressing the effects of hurricanes and extreme weather events on biological, psychosocial, and clinical outcomes among cancer survivors. The research reveals that these events can disrupt cancer care, exacerbate stress levels, an...

SourceH. Lee Moffitt Cancer Center & Research Institute·JournalCancer Epidemiology Biomarkers & Prevention·TypeSystematic review·DateFeb 22, 2024

Climate change linked to rise in mental distress among teens, according to Drexel study

A recent Drexel University study found that high school students who experienced climate disasters had a 20% higher odds of developing mental distress. The research also discovered that the impact of climate change on mental health is strongest in the two years immediately following a disaster, with effects gradually weakening over time.

SourceDrexel University·JournalPreventive Medicine Reports·TypeSurvey·DateFeb 22, 2024

Physical fitness in adolescence linked to less atherosclerosis in middle age

A Swedish study of over 9,000 men found that those who were physically fit in adolescence had a lower risk of atherosclerosis nearly 40 years later. The researchers used advanced imaging technology to examine plaques in the coronary arteries and found associations with both good cardiorespiratory fitness and muscle strength in youth.

SourceLinköping University·JournalBritish Journal of Sports Medicine·TypeObservational study·DateFeb 22, 2024

Strategic grazing could boost conservation of ‘near-threatened’ sage-grouse

A University of Nevada, Reno study links strategic grazing to increased food supply for the greater sage-grouse, a keystone species in the Great Basin region. The research found that targeted grazing can boost insect populations and flowering plant growth, benefiting the species' reproductive phase.

SourceUniversity of Nevada, Reno·JournalJournal of Environmental Management·TypeObservational study·DateFeb 22, 2024

AI-driven method helps improve quality assurance for wind turbines

Researchers have developed an AI-driven method to detect possible anomalies beneath the surface of wind turbine blades using patented radar technology. The non-destructive approach supports agile data acquisition and analysis, enabling faster detection of manufacturing defects and improved overall quality assurance.

SourceEcole Polytechnique Fédérale de Lausanne·JournalMechanical Systems and Signal Processing·TypeComputational simulation/modeling·DateFeb 22, 2024

Chronic stress spreads cancer … here’s how

A recent study by Cold Spring Harbor Laboratory researchers reveals that chronic stress can increase cancer's ability to spread. By mimicking chronic stress in mice with cancer, the team discovered that stress causes neutrophils to form sticky web-like structures called NETs, making body tissues more susceptible to metastasis.

SourceCold Spring Harbor Laboratory·JournalCancer Cell·DateFeb 22, 2024

Zinc discovery holds promise for people with cystic fibrosis

Researchers at University of Queensland have discovered a zinc pathway defect in immune cells of people with cystic fibrosis, leading to increased susceptibility to bacterial infections. The team identified a potential solution by restoring the macrophages' ability to kill bacteria with a zinc transport protein.

SourceUniversity of Queensland·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateFeb 22, 2024

Study finds black children in UK at four times greater risk of complications following emergency appendicitis surgery compared with white children

A UK study published in Anaesthesia found that black children are at a significantly higher risk of postoperative complications following emergency appendicitis surgery, with a four-fold greater risk compared to white children. The study also identified other risk factors for complications, including pre-existing medical conditions and...

SourceAAGBI·JournalAnaesthesia·DateFeb 22, 2024

Releasing “brakes” in the brain

A team of researchers used deep brain stimulation to localize disrupted neural pathways in patients with Parkinson's disease, dystonia, OCD, and Tourette's syndrome. The study identified specific brain circuits associated with each disorder, revealing overlapping malfunctions that suggest a complex network of brain dysfunctions.

SourceCharité - Universitätsmedizin Berlin·JournalNature Neuroscience·TypeComputational simulation/modeling·DateFeb 22, 2024

Treating newly-diagnosed Crohn’s patients with advanced therapy leads to dramatic improvements in outcomes

A large-scale clinical trial has shown that offering early advanced therapy to newly-diagnosed Crohn's patients can drastically improve outcomes, including reducing the need for urgent abdominal surgery. The 'top-down' treatment strategy, which involves providing infliximab as soon as possible after diagnosis, resulted in significantly...

SourceUniversity of Cambridge·JournalThe Lancet Gastroenterology & Hepatology·TypeRandomized controlled/clinical trial·DateFeb 22, 2024

Whole breast ultrafractionation radiotherapy after breast-conserving surgery in early breast cancer had no severe toxicities and did not affect patient-reported outcome

A single-center study found that ultrahypofractionated whole breast irradiation after breast-conserving surgery had no severe toxicities and did not affect patient-reported outcomes. Most patients (83.9%) were diagnosed with pathological stage I disease, and cosmetic effects showed no obvious differences before and after treatment.

SourceHigher Education Press·JournalMalignancy Spectrum·TypeRandomized controlled/clinical trial·DateFeb 22, 2024

Brightest and fastest-growing: astronomers identify record-breaking quasar

The discovery of J0529-4351 reveals the most luminous object in the known Universe, with a mass of 17 billion Suns and an accretion disc seven light-years in diameter. The quasar's brightness surpasses that of 500 trillion Suns, providing valuable insights into supermassive black holes and their role in shaping the early Universe.

SourceESO·JournalNature Astronomy·DateFeb 22, 2024

Study shows how local fishers respond to climate challenges

Local fishers in Mexico's Gulf of California respond to climate challenges through self-governance and organizational structures, with cooperative fishing organizations adopting conservation measures for specific high-value species. The study reveals tradeoffs between specialization and adaptability, suggesting that social structures c...

SourceDuke University·JournalGlobal Environmental Change·TypeObservational study·DateFeb 22, 2024