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Search results for “General Relativity”

1,000+ results for "General Relativity"

A third of licensed GPs in England not working in NHS general practice

A study by the BMJ Group found that one in three GPs with a license to practise in England are not working in NHS general practice. The number of patients for each full time equivalent GP has risen by 15% since 2015, while the number of patients for each full time equivalent NHS consultant fell by 18%. This imbalance threatens governme...

SourceBMJ Group·JournalThe BMJ·TypeObservational study·DateSep 17, 2025

An unprecedented view of merging black holes

Researchers have recorded a signal from a nearly identical black hole collision, confirming two important predictions about merging black holes. The study provides further evidence that the surface area of a merged black hole is never less than the sum of the initial black holes, supporting Stephen Hawking's theory.

SourceColumbia University·JournalPhysical Review Letters·TypeData/statistical analysis·DateSep 10, 2025

Ringing black hole confirms Einstein and Hawking’s predictions

A newly detected black hole merger has provided the clearest evidence yet of how black holes work, confirming fundamental predictions by Albert Einstein and Stephen Hawking. The observations reveal insights into the properties of black holes and the nature of space-time, hinting at how quantum physics and general relativity fit together.

SourceSimons Foundation·JournalPhysical Review Letters·DateSep 10, 2025

Clinical trial finds safe, effective treatment for children with severe post-Covid syndrome

Researchers at Mass General Brigham found larazotide effective in treating children with multisystem inflammatory syndrome in children (MIS-C), a rare but serious condition. The oral drug strengthened intestinal barriers to limit SARS-CoV-2 viral particle entry, resolving symptoms and improving recovery.

SourceMass General Brigham·JournalScience Translational Medicine·TypeRandomized controlled/clinical trial·DateJul 30, 2025

More staff addressing mental health in schools buffers toll of growing up in disadvantaged communities

A new study from Mass General Brigham found that greater access to mental health staff in schools can help lower risk of mental health conditions among students growing up in disadvantaged neighborhoods. Higher school mental health staffing ratios counteracted the effects of neighborhood deprivation on anxiety and depressive symptoms, ...

SourceMass General Brigham·JournalJournal of the American Academy of Child & Adolescent Psychiatry·DateJun 25, 2025

Demographics, risk factors and prevalence of chronic cough in Asian general adult population: a narrative review

Chronic cough is a common symptom in the Asian general adult population, related to risk factors such as age, allergy, smoking, and air pollution. The physical and psychological burden of chronic cough is notable, particularly among older patients or those with comorbidities.

SourceNational Center for Respiratory Medicine·JournalJournal of Thoracic Disease·TypeLiterature review·DateJun 19, 2025

Realization of a cold atom gyroscope in space

Researchers have developed a payload named China Space Station Atom Interferometer (CSSAI) to realize the space cold atom gyroscope measurements, achieving uncertainty of rotational measurement better than 3.0×10⁻⁵ rad/s and resolution of acceleration measurement better than 1.1×10⁻⁶ m/s².

SourceScience China Press·JournalNational Science Review·TypeExperimental study·DateMay 15, 2025

Universe decays faster than thought, but still takes a long time

The researchers calculated that the universe will decay via Hawking-like radiation in approximately 10^78 years. This time frame applies to white dwarf stars and neutron stellar black holes, both of which take the same amount of time to evaporate. The findings contradict previous estimates and shed new light on the theory of relativity.

SourceRadboud University Nijmegen·JournalJournal of Cosmology and Astroparticle Physics·DateMay 12, 2025

Mass General Brigham gene and cell therapy researchers present key findings from multiple innovative studies at ASGCT 2025

Researchers from Mass General Brigham presented key findings from multiple innovative studies on gene and cell therapy, focusing on rare diseases, brain cancer, and neurodegenerative disorders. The studies explored strategies to improve care delivery and accelerate translation from lab to clinic, with potential breakthroughs in treatin...

Discovery from Mass General Brigham researchers yields insights on preventing organ transplant rejection

A new study by Mass General Brigham researchers has identified a natural 'brake' within the innate immune system that can prevent organ transplant rejection. The discovery highlights a promising target for new therapies and offers hope for longer-lasting transplant success and reduced need for lifelong immunosuppression.

SourceMass General Brigham·JournalScience Translational Medicine·TypeObservational study·DateMay 7, 2025

Black holes: Beyond the singularity

Researchers explore alternative models of black holes without singularities, which could be distinguishable from standard black holes through subtle deviations in predictions. Observational tests using sophisticated instruments and different channels may reveal clues about internal structure.

SourceSissa Medialab·JournalJournal of Cosmology and Astroparticle Physics·TypeLiterature review·DateMay 6, 2025

A Snapshot of Relativistic Motion: Special relativity made visible

Researchers from Vienna University of Technology successfully reproduced the Terrell-Penrose effect using laser pulses and precision cameras, demonstrating the relativistic length contraction and its impact on perceived rotation. The experiment uses a novel technique inspired by art to recreate the effect in the laboratory.

SourceVienna University of Technology·JournalCommunications Physics·TypeExperimental study·DateMay 5, 2025

New research from Mass General Brigham guides treatment regimen for aggressive blood cancer

Researchers at Mass General Brigham found that patients with relapsed/refractory mature T- and NK-cell lymphomas had improved survival rates when treated with small molecule inhibitors as second-line therapy, followed by epigenetic modifiers as third-line therapy. The study, published in the British Journal of Haematolog, also showed t...

SourceMass General Brigham·JournalBritish Journal of Haematology·TypeObservational study·DateMay 1, 2025

Mass General Brigham researchers reveal 17 modifiable risk factors shared by stroke, dementia, and late-life depression

Mass General Brigham researchers have identified 17 modifiable risk factors shared by stroke, dementia, and late-life depression. Modifying any one of these risk factors can reduce the risk of all three conditions, providing an opportunity to simultaneously reduce the burden of age-related brain diseases.

SourceMass General Brigham·JournalJournal of Neurology Neurosurgery & Psychiatry·TypeLiterature review·DateApr 3, 2025

A new path to understanding black holes

Physicists have discovered a new theoretical framework called supermazes that redefine the concept of black holes, providing a more universal picture of their microstructure. Supermazes are based on string theory and offer a detailed portrait of the microscopic structure of brane black holes.

SourceUniversity of Southern California·JournalJournal of High Energy Physics·TypeComputational simulation/modeling·DateApr 2, 2025

Howard University physicist revisits the computational limits of life and Schrödinger’s essential question in the era of quantum computing

A study by Philip Kurian and colleagues reveals a revised upper bound on carbon-based life's computational capacity, connecting it to the universe's information-processing limit. The discovery of quantum superradiance in cytoskeletal filaments enables eukaryotic organisms to process information through tryptophan networks.

SourceHoward University·JournalScience Advances·TypeSurvey·DateMar 28, 2025

Deep in the Mediterranean, in search of quantum gravity

A study published in JCAP has established upper limits on the strength of quantum gravity effects on neutrino oscillations, providing valuable insights into the long-sought theory. The results show no signs of decoherence, a phenomenon that could be a key indicator of quantum gravity's presence.

SourceSissa Medialab·JournalJournal of Cosmology and Astroparticle Physics·TypeExperimental study·DateMar 20, 2025

Black holes: not endings, but beginnings? New research could revolutionize our understanding of the universe

Researchers propose a revolutionary link between time and dark energy, suggesting that the mysterious force driving the universe's expansion may be used to measure time. The study could pave the way for groundbreaking new fundamental theories and breakthroughs in our understanding of the universe.

SourceUniversity of Sheffield·JournalPhysical Review Letters·TypeObservational study·DateMar 12, 2025

What can theoretical physics teach us about knitting?

Researchers develop a predictive model of knitting using mathematical techniques from general relativity, allowing for the creation of self-folding and shape-morphing textiles. This breakthrough enables fabrics with precise properties and opens doors to new design applications in soft robotics and medical materials.

SourceUniversity of Pennsylvania·JournalProceedings of the National Academy of Sciences·TypeComputational simulation/modeling·DateFeb 26, 2025

Primordial naked singularities: Nature’s quantum gravity laboratories pervading the universe?

Researchers suggest that gravitational collapse in the early universe could give rise to incredibly dense point-like objects, namely visible or naked singularities. This ultra-strong gravity condition provides a unique opportunity to probe new fundamental aspects of physics, including quantum gravity. The possibility of PNaSs accountin...

SourceTata Institute of Fundamental Research·JournalJournal of Cosmology and Astroparticle Physics·DateJan 9, 2025

Cancer-preventing topical immunotherapy trains the immune system to fight precancers

A new study by Mass General Brigham researchers reveals that a novel immunotherapy can eliminate precancerous spots and prevent skin cancer through the activation of specific immune cells. The therapy successfully cleared over 95% of facial lesions and showed long-term efficacy, with benefits lasting up to five years after treatment.

SourceMass General Brigham·JournalJournal of Clinical Investigation·TypeRandomized controlled/clinical trial·DateJan 2, 2025

Physicists ‘bootstrap’ validity of string theory

A team of physicists has validated string theory by developing an innovative mathematical method that points to its inevitability. This breakthrough uses the bootstrap principle to show that string theory is the only consistent answer for scattering amplitudes, bringing researchers closer to understanding the universe.

SourceNew York University·JournalPhysical Review Letters·TypeComputational simulation/modeling·DateDec 17, 2024

Particle that only has mass when moving in one direction observed for first time

Researchers at Penn State and Columbia University have observed a type of quasiparticle called a semi-Dirac fermion that has mass when moving in one direction but not in the other. The discovery, made using a technique called magneto-optical spectroscopy, could lead to advances in emerging technologies such as batteries and sensors.

SourcePenn State·JournalPhysical Review X·TypeExperimental study·DateDec 10, 2024

Research team demonstrated nonlinear compton scattering with a multi-petawatt laser, mimicking astrophysical phenomena and producing ultra-bright gamma rays

A team of researchers successfully demonstrated nonlinear Compton scattering using a multi-petawatt laser, producing ultra-bright gamma rays. The achievement offers new insights into high-energy electron-photon interactions without traditional particle accelerators.

SourceInstitute for Basic Science·JournalNature Photonics·TypeExperimental study·DateNov 25, 2024