Browsing by Subject "radiation"
Now showing items 1-20 of 26
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(2013-04-08)Over 95% of imports entering the United States from outside North America arrive via cargo containers by sea at 329 ports of entry. The current layered approach for the detection only scans 5% of cargo bound for the United ...
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(2019-01-11)When it comes to saving lives after a destructive and catastrophic crisis, urban search and res-cue (USAR) dogs are an essential emergency response component, where each dog can perform the equivalent work of 20 to 30 ...
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(2012-02-14)Surface downward far-infrared (far-IR) spectra were collected from NASA’s Far-Infrared Spectroscopy of the Troposphere (FIRST) instrument from August to October 2009 at an altitude of 5.4 km near the summit of Cerro Toco, ...
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(2018-05-06)As the focus shifts to potential Lunar and Mars missions, there are many aspects of the space environment that are still unknown, one of those being radiation exposure. There are many radiation studies examining the effects ...
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(2013-05-06)Three collimators were designed and built with mouse irradiation in mind. They were made to have a shapeable aperture that could deliver strange or complex dose shapes to spots on the animals. Current collimators are ...
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(2013-11-25)Microbial dysbiosis and toll-like receptor (TLR) signaling play a role in colonic injury and inflammation. Ulcerative colitis and radiation are known to alter microbiota, and diets containing polyphenols impact bacterial ...
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(Texas A&M University, 2006-10-30)The ability of ionizing radiation to enhance colon carcinogenesis and the role of diet in this process has not been documented. We hypothesized that radiation would enhance the formation of aberrant crypt foci, ACF, known ...
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(Texas A&M University, 2006-08-16)Colon cancer is one of the most commonly diagnosed cancers in the US, yet small intestine cancer is a rare event. While there are many similarities between these two tissues, inherent differences such as redox status, may ...
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(2013-04-19)Astronauts in space flight missions are exposed to increased iron (Fe) stores and galactic cosmic radiation, both of which independently induce oxidative stress. Oxidative stress can result in protein, lipid, and DNA ...
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(2018-06-08)Spaceflight exerts multiple environmental pressures upon astronauts causing both short and long-term physiological adaptations that may be debilitating and interfere with the ability for crewmembers to optimally function ...
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(2009-05-15)The threat of a Radiological Dispersal Device (RDD) detonation arouses the concern of contaminated victims of all ages. The purpose of this study was to investigate the dose to a uniformly contaminated five-year old male. ...
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(2012-07-16)Liquefied Natural Gas (LNG) is a commonly used flammable fuel that has safety concerns associated with vapor dispersion and radiation emitted from pool fires. The main objective of this effort is to advance the knowledge ...
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(Texas A&M University, 2007-04-25)Recent events have underscored the need for the United States government to provide streamlined emergency response procedures and subsequent dose estimations for personnel responding to incidents involving radioactive ...
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(2013-05-03)The objectives of this thesis are to produce radioactive antibody-conjugated gold nanoparticles to improve the efficacy of targeted radionuclide therapy for the treatment of cancer, and to demonstrate that this product can ...
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(2009-05-15)A major limiting factor for long-term, deep-space missions is the radiation dose to astronauts. Because the dose to the astronauts is a mixed field of low- and high-LET radiation, there is a need to understand the effects ...
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(2012-07-11)Atmospheric opacity, otherwise known as optical depth, is the measurement of the amount of radiation reaching the surface through the atmosphere. The spatial and temporal patterns in optical depth tell us about the aerosol ...
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(2014-08-04)The dramatically increasing demand for energy stimulates scientists all over the world to consider the possible ways to meet future energy needs. The application of atomic energy has been demonstrated to be a reliable, ...
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(2016-05-04)During human spaceflight missions, controlled variation of atmospheric pressure and oxygen concentration from a sea-level based normal to hyperoxic levels may occur as part of operational procedure. This activity is of ...
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(2012-10-19)Detector arrays are required for many applications in health and defense. Whether searching for contraband or controlling radioactive spread after an event, a "passive" data collection strategy is a key component. This ...
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(2020-06-23)Radiation portal monitors (RPMs) are employed worldwide at border crossings and other entry points as a method to detect the illegal transportation of radioactive material. Scintillating detectors composed of polyvinyl ...