Articles tagged with Radiation
A new study found that the majority of veterans with low-risk prostate cancer pursued active surveillance in 2024, up from 27% in 2005. The study followed over 73,000 veterans and showed similar survival outcomes for surveillance compared to treatment.
Researchers warn of the scale of radiation risks to passengers, crew and onboard systems during extreme space weather events. The study proposes a new atmospheric radiation scale to help support more informed decision-making in aviation.
Researchers suggest that extreme space weather may have far worse effects on Earth's technology than previously thought. The study, published in Nature, found a direct relationship between solar wind strength and electric currents in the upper atmosphere, indicating no upper limit to Earth's response.
Scientists developed a device that controls heat radiation direction and switches this effect on and off, enabling 'heat programming' like microchip data. The new material exhibits different responses depending on light direction, improving efficiency compared to previous devices.
Researchers at the University of Waterloo developed a flexible polymer shield that provides radiation protection without the health and ergonomic risks associated with lead. The new material weighs almost 90% less than traditional aprons while maintaining excellent X-ray shielding.
The University of Liverpool has signed a Memorandum of Understanding with Mirion Technologies to expand collaboration in nuclear science, radiation protection and related strategic technologies. The partnership aims to strengthen education in radiation detection and measurement, as well as jointly pursue funding opportunities for large...
A study by the Alliance Foundation Trials shows that combining immunotherapy and chemotherapy before surgery can help more patients with locally advanced non-small cell lung cancer undergo complete cancer resection, improving their long-term health. The treatment also led to high rates of lymph node clearance and successful surgical re...
Researchers at University Hospitals Cleveland Medical Center have introduced a new, non-invasive treatment option for patients with refractory ventricular tachycardia, a life-threatening heart condition. The therapy uses precision-targeted radiation to neutralize damaged heart tissue and is offered at select centers worldwide.
Researchers propose a novel THz metasurface-enabled platform for integrated sensing and imaging, overcoming limitations of slow sequential data acquisition. The system achieves 100% binary image reconstruction with nanosecond-scale accuracy, enabling real-time applications in security, semiconductor, and pharmaceutical sectors.
Researchers found that maternal anxiety about radiation exposure during the Fukushima nuclear accident was linked to increased rates of preterm births, lower birth weights, and severe birth outcomes. Socioeconomic factors, such as education level and income, played a role in mitigating these effects.
A new clinical trial will investigate whether adding the oral medication vorasidenib to standard chemotherapy improves progression-free survival for people with newly-diagnosed, grade 3 IDH-mutant astrocytoma. The study aims to recruit 400 individuals with this type of brain cancer and evaluate the safety and side-effect profile of the...
Researchers have developed a new framework to detect possible damage in concealed cold-formed steel construction framing materials, utilizing ground-penetrating radar and artificial intelligence. The technology allows for rapid detection of damage, enabling inspectors to verify only flagged spots without removing walls or cladding.
The study reveals marked variation in radiation dose to patients from diagnostic testing, particularly affecting low- and middle-income countries. Standardized protocols and updated equipment are urgently needed to reduce global radiation exposure and improve the quality of CAD diagnosis.
A new study by Mass General Brigham highlights the efficacy of proton therapy in achieving excellent tumor control rates while minimizing side effects compared to traditional radiotherapy. Proton therapy limits radiation exposure to healthy tissue, potentially preserving cognition and hormone function.
A recent study published in Journal of Geophysical Research: Atmospheres confirms that lunar observations can accurately capture Earth's outgoing radiation, revealing its global radiation fingerprint. The research team used spherical harmonic functions to filter out local weather noise and extract planet-scale dominant signals.
A low-cost, portable dosimetry system using radiochromic film and a smartphone can provide immediate on-site readings for radiation exposure. The system is practical for personal preparedness in mass-casualty events and costs less than USD$70.
A case report describes a woman with radiation-induced cellular changes in her Pap smear that mimicked cancer recurrence. The study emphasizes the importance of recognizing these changes to prevent misdiagnosis and unnecessary medical procedures.
Researchers developed a comprehensive model of luminous black hole accretion, including radiation flows and interactions with surrounding gas. Their simulations reproduce consistent behaviors across various black hole systems, providing insight into extreme nonlinear processes.
A study published in JAMA Oncology found that shorter courses of androgen deprivation therapy can effectively control prostate cancer without increasing risks. The ideal duration of ADT depends on cancer risk, allowing for more personalized treatment plans.
A study from Bielefeld University reveals that the solar system is moving more than three times faster than predicted by current models. This deviation was detected using data from radio galaxies, which emit strong radio waves and can penetrate dust and gas.
Researchers found that heat transfer values increase dramatically at distances less than ten nanometres, exceeding theoretical predictions by a factor of one hundred. This phenomenon challenges current understanding of heat transfer in the nanometre range.
A study found that stereotactic body radiotherapy (SBRT) after prostate surgery is safe and effective in preventing cancer recurrence, with low side effects and manageable treatment. The results suggest SBRT may be a faster and simpler option for men at risk of recurrent prostate cancer.
Researchers investigated the luminescence characteristics of Eu-doped CaF₂ crystals under alpha and X-ray irradiation. They found that the ratio of Eu²⁺-induced emission to Eu³⁺-induced emission varies depending on the radiation type, with differences in light color potentially used to identify radiation types.
Researchers developed a genomic model to tailor radiation doses to individual patients with HPV-positive throat cancer. The study found that higher scores on the Genomic Adjusted Radiation Dose (GARD) model were associated with improved survival outcomes, even when patients received the same radiation dose.
A study published in The New England Journal of Medicine found that nearly 4 million children and adolescents were at higher risk of developing blood cancers due to radiation exposure from medical imaging. The researchers estimated that up to 10% of pediatric blood and bone marrow cancers may be attributable to radiation exposure.
Researchers developed a device that uses Rosaceae plants' infrared radiation characteristics to create adaptive camouflage for various wavelengths. The device achieves simulated plant-like infrared camouflage and ultra-low emissivity infrared stealth.
Researchers at UC San Diego School of Medicine have developed a novel approach to enhance the effectiveness of immunotherapy treatments for head and neck squamous cell carcinomas (HNSCC). Delivering radiation therapy that preserves tumor-draining lymph nodes followed by immunotherapy resulted in a complete and durable tumor response in...
A novel deep learning approach estimates TOA shortwave radiation using DSCOVR/EPIC satellite images, overcoming traditional challenges and improving accuracy. The method is validated against established CERES data products with a high correlation rate.
Researchers at National Institutes for Quantum Science and Technology developed a technique to decompose polytetrafluoroethylene (PTFE) into gaseous products using electron beam irradiation. This process reduces energy required by 50% compared to traditional methods, making large-scale recycling of fluoropolymers more viable.
Researchers used an experimental technique called annealing to rescue a damaged camera on NASA's Juno spacecraft, offering lessons for other space systems that experience high radiation.
A team of researchers are studying the reproductive traits of Japanese tree frogs living in Fukushima Prefecture, Japan, to understand how radiation affects their survival. Their findings suggest that radiation can disrupt genetic pathways associated with sperm motility, potentially altering reproductive success.
The BABAR-ERI satellite will measure outgoing broadband radiation with low uncertainty and high spatial resolution, helping unlock new scientific discoveries about clouds and energy flow. The instrument's novel detector arrays and pushbroom imager will provide flexible observing strategies and easier access to space.
Researchers have made the most sensitive direct measurement yet of the 12C(12C,a0)23Na reaction down to an excitation energy of 2.22 MeV using a HOPG target and intense carbon beam. The results represent the highest sensitivity achieved for this channel, with a thick-target yield on the order of 10−17 per incident carbon ion.
Researchers developed stable MXene-coated contact lenses providing enhanced protection against electromagnetic radiation. The lenses exhibited a rapid temperature rise when exposed to microwave heating, indicating strong EMR absorption and dissipation.
Researchers review clinical and scientific advances combining radiation therapy with immunotherapy to strengthen the immune response and improve disease control. The approach may offer new treatment options for patients facing hard-to-treat forms of bladder cancer.
A new framework for assessing traumatic brain injuries (TBI) will provide more accurate diagnoses and treatments, leading to better patient outcomes. The framework incorporates clinical symptoms, biomarkers, imaging scans, and modifiers to determine the severity of injury and predict recovery.
The University of Texas at Arlington's nursing and physics team has developed a system to study alpha radiation, improving the effectiveness of radiation therapy. The team's research was recognized with the Best in Physics award at the American Association of Physicists in Medicine's annual meeting.
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.
Researchers developed an intelligent autonomous robot capable of automating hospital disinfection processes through dual disinfection system, increasing efficiency and precision. The robot's performance was validated through real-world testing, reducing the risk of infection in hospitals.
A research team from the University of South China has developed a novel algorithm to optimize radiation-shielding design in nuclear reactors. The algorithm, based on a reference-point-selection strategy, efficiently solves many-objective optimization problems and provides optimized shielding solutions for new types of reactors.
Current computed tomography (CT) imaging may lead to up to 103,000 future cancers over a patient's lifetime. If practices persist, CT-associated cancer could account for 5% of all new diagnoses annually.
Scientists successfully fermented miso on the International Space Station, discovering differences in bacterial communities and flavor profiles compared to Earth-made miso. The study's findings suggest that food fermentation can thrive in space, opening up new possibilities for astronaut well-being and performance.
The University of Texas at Arlington has been awarded a $1.5 million grant from the National Science Foundation to train scientists in space physics and data science. The grant will also enable UTA to create a specialization in space physics for students pursuing a Bachelor of Science in physics.
Researchers developed an aspirin-containing hydrogel that mimics the nutrient-rich fluid between cells, accelerating healing of radiation-induced skin injuries in animal models. The new salve could provide rapid wound healing for humans with minimal side effects.
A team from City University of Hong Kong has designed a compact hybrid transmission and scanning electron microscope that can operate at room temperature, offering high-resolution imaging capabilities without cryogenic temperatures. The new system reduces radiation damage to samples and provides improved image contrast using pulse elec...
Researchers at the University of Plymouth have discovered that administering a HDAC6 inhibitor prior to radiotherapy can inhibit cellular growth and increase cell death in meningioma samples. This promising approach could lead to improved treatment outcomes for malignant meningioma patients.
A study by the University of Gothenburg found that women with triple-negative breast cancer and high immune cell levels have a lower relapse risk after surgery. This suggests that these patients may not need chemotherapy, despite having faster-growing tumors and higher relapse rates than other breast cancers.
Researchers at UNC-Chapel Hill have found that tardigrades can increase DNA repair genes' production in response to radiation, making them more resilient to damage. This discovery could lead to new ideas on protecting other animals and microorganisms from damaging radiation.
Researchers at MIT and LBNL created a simplified array of four pixels in tetromino shapes to detect radiation direction, achieving accuracy comparable to large expensive systems. The design reduces engineering costs while improving performance for handling multiple radiation sources.
Two new Review articles explore AI's application in early cancer detection, highlighting its potential to enhance diagnostic accuracy and improve treatment selection. The articles emphasize the need for a robust, multi-disciplinary approach to integrate AI into medicine.
A Northwestern University study found ChatGPT's responses to radiation oncology patient questions were on par or exceeded professional society answers. The AI technology aims to empower patients before and after seeing physicians, while also reducing clinician burnout.
A new AI tool can predict which breast cancer patients are at risk of chronic arm swelling after surgery and radiotherapy. The tool, developed by international researchers, uses machine learning algorithms to analyze patient data and provides easily understandable explanations for doctors and patients.
The Juno spacecraft has directly measured charged oxygen and hydrogen molecules from Europa's atmosphere, providing key constraints on the potential oxygenation of its subsurface ocean. The findings suggest that oxygen is continuously produced in the surface ice shell, with an estimated 12 kg per second, which could support habitability.
Researchers at the University of Rochester Medical Center find that microglia can trigger cognitive deficits after radiation exposure, potentially targeting them for therapy development. Mice studies showed that blocking a specific pathway in microglia prevented cognitive decline, offering hope for improving patients' quality of life.
A recent study explores the complex links between surface temperature and outgoing longwave radiation, uncovering hidden mechanisms shaping Earth's climate. The research reveals that vertical convective energy transport acts as an atmospheric mixer, suppressing nonlinearity between OLR and surface temperature.
Researchers at Brigham and Women's Hospital have developed an AI algorithm to measure muscle development in children using MRI scans. The tool provides a standardized growth chart, allowing clinicians to track muscle mass and detect signs of sarcopenia or low lean muscle mass, enabling early intervention to prevent negative effects.
A multinational study of almost one million individuals found a strong association between exposure to radiation from CT scans in young people and an increased risk of blood cancers. The study confirms that the benefits of computed tomography outweigh the risks, but emphasizes the need for strict radiological protection measures, parti...
Researchers have proposed using quasiparticles to create ultra-bright light sources, mimicking the properties of particles moving faster than light. These potential light sources could revolutionize fields like non-destructive imaging, computer chip manufacturing, and scientific research.
Researchers found persistent inflammation in intestines of patients 20 years post-radiotherapy, even with targeted treatments. This could lead to chronic symptoms like tenesmus and frequent diarrhea.
The UK and Japan partnership aims to develop new technologies for detecting and processing radioactive waste. Researchers will focus on improving inspection technologies using hyperspectral imaging and exploring calcined clays as natural resources to engineer 'geopolymer binders'.