It is well known that ionizing radiation, when it hits living cells, causes a plethora of different damage types at different levels [...].
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| http://dx.doi.org/10.3390/ijms24043238 | DOI Listing |
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College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, China.
Cold stress (CS) is a significant natural hazard, and distinguishing between plant cold resistance and sensitivity is critical for cultivar breeding and the development of germplasm resources. This study used 205 tobacco (Nicotiana tabacum L.) varieties from around the world to investigate the changes in the chlorophyll a fluorescence (OJIP) transients, JIP-test parameters, and seedling growth caused by seven days of CS (5°C) treatment.
View Article and Find Full Text PDFBackground: Radiation therapy (RT) treats primary and metastatic brain tumors, with about one million Americans surviving beyond six months post-treatment. However, up to 90% of survivors experience RT-induced cognitive impairment. Emerging evidence links cognitive decline to RT-induced endothelial dysfunction in brain microvessels, yet studies of endothelial injury remain limited.
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Space Sciences Laboratory, University of California, Berkeley, 7 Gauss Way, Berkeley, 94720 CA USA.
We present an investigation into the effects of high-energy proton damage on charge trapping in germanium cross-strip detectors with the goal of accomplishing three important measurements. First, we calibrated and characterized the spectral resolution of a spare COSI-balloon detector in order to determine the effects of intrinsic trapping, finding that electron trapping due to impurities dominates over hole trapping in the undamaged detector. Second, we performed two rounds of proton irradiation of the detector in order to quantify, for the first time, the rate at which charge traps are produced by proton irradiation.
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