Current Radiation News and Events

Current Radiation News and Events, Radiation News Articles.
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Better bundled: new principle for generating X-rays
X-rays are usually difficult to direct and guide. X-ray physicists at the University of Göttingen have developed a new method with which the X-rays can be emitted more precisely in one direction. To do this, the scientists use a structure of thin layers of materials with different densities of electrons to simultaneously deflect and focus the generated beams. The results of the study were published in the journal Science Advances. (2021-01-25)

Study finds shorter radiation regimen safe, effective for men with advanced prostate cancer
UCLA researchers found shortening a traditional 45-day course of radiation to a five-day course delivered in larger doses is safe and as effective as conventional radiation for men with high-risk forms of prostate cancer. (2021-01-25)

How does incident solar radiation affect urban canyons?
Toyohashi University of Technology proposed a numerical bead model to predict the upward-to-downward reflection ratio of glass bead retro-reflective (RR) material purposed for urban heat island (UHI) mitigation and reducing energy consumption. These results will contribute to existing research on the absorption or reflection of solar radiation to improve urban thermal and lighting conditions, and to reduce building energy consumption. (2021-01-25)

University of Cincinnati research unveils possible new combo therapy for head and neck cancer
Researchers at the University of Cincinnati have tested a new combination therapy in animal models to see if they could find a way to make an already effective treatment even better. Since they're using a Food and Drug Administration-approved drug to do it, this could help people sooner than later. (2021-01-22)

Sunbathing after menopause may be harmful
UV-radiation can affect hormone levels of postmenopausal women negatively and this may contribute to several health issues, according to new research from Kai Triebner, University of Bergen, and colleagues. (2021-01-20)

Dartmouth researchers pilot FLASH radiotherapy beam development for treatment of cancer
A team of researchers led by Dartmouth's and Dartmouth-Hitchcock's Norris Cotton Cancer Center has produced a 'FLASH' ultra-high-dose rate radiation therapy beam, demonstrating that such a beam can be achieved reversibly on a clinical linear accelerator and delivered to the patient treatment site. FLASH beam radiotherapy improves patient safety by protecting normal tissues from excess damage while still having the same treatment effect on tumor tissues. (2021-01-19)

5G doesn't cause COVID-19, but the rumor it does spread like a virus
Research team investigated how COVID-19 misinformation proliferated using the same epidemiological techniques for modeling disease transmission. (2021-01-19)

New hard disk write head analytical technology can increase hard disk capacities
Using synchrotron radiation at SPring-8 - a large-scale synchrotron radiation facility - Tohoku University, Toshiba Corporation, and the Japan Synchrotron Radiation Research Institute (JASRI) have successfully imaged the magnetization dynamics of a hard disk drive (HDD) write head for the first time, with a precision of one ten-billionth of a second. The method makes possible precise analysis of write head operations, accelerating the development of the next-generation write heads and further increasing HDD capacity. (2021-01-07)

Inverted fluorescence
Fluorescence usually entails the conversion of light at shorter wavelengths to light at longer wavelengths. Scientists have now discovered a chromophore system that goes the other way around. When excited by visible light, the fluorescent dyes emit light in the ultraviolet region. According to the study published in the journal Angewandte Chemie, such light upconversion systems could boost the light-dependent reactions for which efficiency is important, such as solar-powered water splitting. (2020-12-18)

For college students, skin cancer risk remains high in winter months
New research finds college students could be just as at risk for developing skin cancer in the dead of winter as they are in the middle of summer. (2020-12-17)

Change in global precipitation patterns as a result of climate change
The Earth's climate system is largely determined by the differences in temperature between the tropics and the poles. Global warming is likely to cause global atmospheric circulation to change and progressively revert to a situation similar to that of 5,000 to 10,000 years ago. This is the conclusion of a study published in Nature Communications. (2020-12-17)

A first-in-human clinical trial shows microbubbles augments radiation in liver cancer patients
Bursting gas-filled microbubbles using ultrasound waves sensitizes tumors to targeted radiation, reducing tumor growth and improving overall survival after treatment. (2020-12-15)

Everything you want to know about sunscreen
From safety and effectiveness to who should use sunscreen and how to apply it, Canadian dermatologists review the latest evidence and guidelines on use of sunscreen. The review, published in CMAJ (Canadian Medical Association Journal), recommends that everyone older than six months of age should use sunscreen to protect against skin cancer (2020-12-14)

Gene could help predict response to cervical cancer treatment
UCLA researchers have identified a potential diagnostic marker that could help predict how likely someone with cervical cancer is to respond to the standard treatment of chemotherapy and radiation. (2020-12-11)

Physicians don't always recognize patients' radiation therapy side effects
Physicians did not recognize side effects from radiation therapy in more than half of breast cancer patients who reported a significant symptom, a new study finds. (2020-12-09)

Omitting radiation therapy after breast-conserving surgery may not impact 10-year survival rates for older patients with HR-positive breast cancer
Older patients with hormone receptor-positive breast cancer who did not receive radiation therapy after breast-conserving surgery had higher rates of local recurrence but similar 10-year survival rates when compared to patients who received postoperative radiation therapy, according to updated 10-year data from the PRIME II study, presented at the 2020 San Antonio Breast Cancer Symposium. (2020-12-09)

Cervical cancer survival may improve by targeting senescent "zombie" cells
How well women with cervical cancer respond to treatment and survive correlates with the level of 10 proteins in their blood that also are associated with a ''zombie'' cell state called senescence, Medical College of Georgia scientists report. (2020-12-07)

Aluminium alloy research could benefit manned space missions
Manned space missions in spacecraft made of aluminium that is light yet resistant to radiation could be a step nearer following research involving a world-leading facility at the University of Huddersfield. (2020-12-07)

Warbler coloration shaped by evolution via distinct paths
Two genes that are important for the diverse colors and patterns of warbler plumage have evolved through two very different processes, according to a new study led by Penn State researchers. These evolutionary processes could help explain the rapid evolution of these songbirds into so many unique species. (2020-11-30)

Safe ultraviolet light could be used to sterilise high-risk COVID-19 environments
Research at Cranfield University is paving the way for a new solution to kill aerosolised COVID-19 in enclosed environments such as hospitals and long-term care facilities. Computational modelling has shown that low dose far-ultraviolet C (UVC) lighting can be used to disinfect in-room air, increasing disinfection rates by 50-85% compared to a room's ventilation alone. (2020-11-26)

Space travel can adversely impact energy production in a cell
Studies of both mice and humans who have traveled into space reveal that critical parts of a cell's energy production machinery, the mitochondria, can be made dysfunctional due to changes in gravity, radiation exposure and other factors. These findings are part of an extensive research effort across many scientific disciplines to look at the health effects of travel into space. (2020-11-25)

Scientists propose to make a laser scalpel with a 'curved' blade
Scientists from Tomsk Polytechnic University and Saratov State University teamed up with colleagues from Taiwan and proposed to make a laser 'blade' for a medical scalpel with a specified curved shape using a photonic 'hook'. (2020-11-20)

Cichlid fishes from African Lake Tanganyika shed light on how organismal diversity arises
Lake Tanganyika in Africa is a true hotspot of organismal diversity. Approximately 240 species of cichlid fishes have evolved in this lake in less than 10 million years. A research team from the University of Basel has investigated this phenomenon of ''explosive speciation'' and provides new insights into the origins of biological diversity, as they report in the journal Nature. (2020-11-18)

UV light may be a greater risk for melanoma than suspected
Studies conducted in yeast show that exposure to ultraviolet light (UV) induces new types of DNA damage that may cause the deadliest form of skin cancer, malignant melanoma. While melanoma has been associated with UV light, this study directly links UV exposure to the atypical mutations known to spread the disease. The results also indicate that UV light can induce a more diverse spectrum of mutations than previously suspected. (2020-11-17)

Diagnostic imaging may increase risk of testicular cancer
Early and repeated exposures to diagnostic imaging, such as X-rays and CT scans, may increase the risk of testicular cancer. (2020-11-11)

Is proton therapy the silver bullet for children with brain cancer?
How safe is proton therapy for children with brain cancer compared to the conventional x-ray radiation delivered post-surgery? (2020-11-11)

3D printed stents that treat inflammation
POSTECH Professor Dong-Woo Cho's research team develops bioink-loaded esophageal stents for treating radiation esophagitis. (2020-11-10)

Perspectives of tumor treatment: Researchers investigate combination of carbon ion and immunotherapy
It is still a glance into the future: The combination of carbon ion and immune therapy could become an effective tool in the fight against cancer. Promising results for the potential benefit of this treatment combination have now been published in the journal ''International Journal of Radiation Oncology, Biology, Physics'' of the American Society for Therapeutic Radiation Oncology. The authors are an international team, led by the Biophysics Department at the GSI Helmholtzzentrum für Schwerionenforschung. (2020-11-09)

Tunable THz radiation from 3D topological insulator
Wu's research group has been investigating a three-dimensional topological insulator of bismuth telluride (Bi2Te3) as a promising basis for an effective THz system. They recently systematically investigated THz radiation from Bi2Te3 nanofilms driven by femtosecond laser pulses. (2020-11-02)

A versatile photodetector assisted by photovoltaic and bolometric effects
A versatile photodetector based on MoTe2/VO2 heterostructure integrates photovoltaic and bolometric effects. The photodetector can realize three different functional modes including p-n junction, bolometer and Schottky junction, satisfying the demand of ultrasensitive and ultrabroad spectrum response, showing great potential in advanced photodetector. (2020-11-01)

Microbes in the gut could be protective against hazardous radiation exposure
A study by scientists at UNC Lineberger Comprehensive Cancer Center and colleagues showed that mice exposed to potentially lethal levels of total body radiation were protected from radiation damage if they had specific types of bacteria in their gut. They demonstrated that the bacteria mitigated radiation exposure and enhanced the recovery of blood cell production as well as repair of the gastrointestinal tract. (2020-10-30)

Sexual health often overlooked in cancer survivorship care, especially for female patients
A new study points to a need for oncologists to ask their patients about sexual health after chemotherapy, radiation and other cancer treatments. In a survey of nearly 400 cancer survivors, 87% said they experienced sexual side effects, but most also said their oncologist had not formally asked about them. Female patients were especially unlikely to be asked about sexual dysfunction. Findings will be presented at the American Society for Radiation Oncology (ASTRO) Annual Meeting. (2020-10-30)

Towards next-generation molecule-based magnets
Magnets are to be found everywhere in our daily lives, whether in satellites, telephones or on fridge doors. However, they are made up of heavy inorganic materials whose component elements are, in some cases, of limited availability. Now, researchers from the CNRS, the University of Bordeaux and the ESRF (European Synchrotron Radiation Facility in Grenoble) have developed a new lightweight molecule-based magnet, produced at low temperatures, and exhibiting unprecedented magnetic properties. (2020-10-29)

Direct observation of a single electron's butterfly-shaped distribution in titanium oxide
A research team led by Nagoya University has observed the smeared-out spatial distribution of a single valence electron at the centre of a titanium oxide molecule, using synchrotron X-ray diffraction and a new Fourier synthesis method also developed by the team. The method can determine the orbital states in materials regardless of their physical properties and without the need for difficult experiments or analytical techniques. The work was published recently in Physical Review Research. (2020-10-28)

Validation of ERCC1/2 signature as radiosensitivity biomarker for tumor & normal tissues in NSCLC
A genetic analysis of non-small cell lung cancer (NSCLC) patients on the phase III NRG Oncology RTOG 0617 clinical trial assessing radiation dose discovered that high dose radiation therapy is associated with shorter survival times among patients with a radiation-sensitive genotype in DNA repair pathway. These findings were presented at the virtual edition of the American Society for Radiation Oncology's (ASTRO) Annual Meeting in October 2020. (2020-10-28)

Cancer treatment without side effects?
Treating cancer without debilitating side effects has long been the holy grail of oncologists, and researchers at the University of California, Irvine and Switzerland's Lausanne University Hospital may have found it. (2020-10-27)

Penn Study supports use of radiation before CAR therapy for multiple myeloma
Administering radiation therapy to multiple myeloma patients waiting for CAR T cells to be manufactured was found to be safe and undisruptive to CAR T therapy. (2020-10-26)

MFS Is a strong surrogate endpoint for OS for men receiving salvage RT for recurrent prostate cancer
An analysis of the phase III NRG Oncology clinical trial RTOG 9601 on men receiving salvage radiotherapy (SRT) following prostatectomy for recurrent prostate cancer indicated that, while biochemical failure (BF) was not a strong surrogate endpoint to determine overall survival (OS), metastasis-free survival (MFS) was in this patient population. (2020-10-26)

Group trial bolsters case for stereotactic radiation for tumors that travel to the lungs
A new study, conducted across 13 medical centers in Australia and New Zealand, strengthens the case for radiation therapy as a treatment for cancer that has begun to spread throughout the body. Findings of the SAFRON II trial (NCT01965223) will be presented today at the American Society for Radiation Oncology (ASTRO) Annual Meeting. (2020-10-26)

Treating spinal mets with fewer, higher doses of radiation reduces pain more effectively
A new study shows using fewer and higher doses of high-precision radiation therapy is a more effective approach for treating painful spinal tumors than conventional radiation therapy. Findings from the Canadian phase II/III trial (NCT02512965) will be presented today at the American Society for Radiation Oncology (ASTRO) Annual Meeting. (2020-10-26)

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