keyword
MENU ▼
Read by QxMD icon Read
search

radiation enteritis

keyword
https://www.readbyqxmd.com/read/28213304/photocatalytic-effects-of-titanium-dioxide-nanoparticles-on-aquatic-organisms-current-knowledge-and-suggestions-for-future-research
#1
REVIEW
Vena N Haynes, J Evan Ward, Brandon J Russell, Alexander G Agrios
Nanoparticles are entering natural systems through product usage, industrial waste and post-consumer material degradation. As the production of nanoparticles is expected to increase in the next decade, so too are predicted environmental loads. Engineered metal-oxide nanomaterials, such as titanium dioxide, are known for their photocatalytic capabilities. When these nanoparticles are exposed to ultraviolet radiation in the environment, however, they can produce radicals that are harmful to aquatic organisms...
February 9, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28168936/dosimetric-comparison-of-real-time-mri-guided-tri-cobalt-60-versus-linear-accelerator-based-stereotactic-body-radiation-therapy-lung-cancer-plans
#2
Andrzej P Wojcieszynski, Patrick M Hill, Stephen A Rosenberg, Craig R Hullett, Zacariah E Labby, Bhudatt Paliwal, Mark W Geurts, R Adam Bayliss, John E Bayouth, Paul M Harari, Michael F Bassetti, Andrew M Baschnagel
PURPOSE: Magnetic resonance imaging-guided radiation therapy has entered clinical practice at several major treatment centers. Treatment of early-stage non-small cell lung cancer with stereotactic body radiation therapy is one potential application of this modality, as some form of respiratory motion management is important to address. We hypothesize that magnetic resonance imaging-guided tri-cobalt-60 radiation therapy can be used to generate clinically acceptable stereotactic body radiation therapy treatment plans...
January 1, 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/28161894/mediator-of-dna-damage-checkpoint-protein-1-mdc1-as-a-prognostic-marker-for-patients-with-oral-squamous-cell-carcinoma
#3
Jigna Harshadbhai Dave, Hemangini Hasit Vora, Nandita Radhabinod Ghosh, Trupti Indravadan Trivedi
BACKGROUND: The mediator of DNA damage checkpoint protein 1 (MDC1) is involved in the regulation of cell cycle check points and recruitment of several repair proteins to the site of DNA double stranded breaks (DSBs). The present study aims to correlate the expression of MDC1 protein with clinicopathological parameters and to evaluate its prognostic significance in patients with oral squamous cell carcinoma (OSCC). METHODS: MDC1 protein expression was evaluated immunohistochemically from untreated 100 patients with OSCC using modified H-score method...
February 4, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28152911/benchmarks-of-quality-breast-care-over-10-years
#4
F Lee Tucker, Barbara Rabinowitz, Teresa Heckel, Jennifer S Gass
: 272 Background: In 2005, the National Quality Measures for Breast Centers (NQMBC) was initiated as a web-based program to capture breast center performance using process of care measurements. The program participant enters data verified by the breast center director or administrator which was randomly audited. As a center submits data, their results are immediately compared with other similar centers as well as with all submitting centers. METHODS: Of the 31 measures, we focus on six pertinent measures of quality breast care; time from diagnostic mammogram to needle biopsy, time from needle biopsy to initial breast cancer surgery, breast conservation rate, use of radiation therapy for breast conserving patients, use of endocrine therapy, and use of chemotherapy...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28152762/ro-ils-radiation-oncology-incident-learning-system-data-trends-2014-2015
#5
Eric C Ford, Nadine L Eads, Ksenija Kapetanovic, Cindy Tomlinson
: 59 Background: Incident learning is one of the most effective ways to improve quality care. To facilitate patient safety improvement at a national level, American Society for Radiation Oncology (ASTRO) and American Association of Physicists in Medicine (AAPM) launched RO-ILS: Radiation Oncology Incident Learning System in June 2014. RO-ILS mission is to facilitate safer and higher quality care through a shared learning environment that is secure and non-punitive. METHODS: To ensure the security and protection of data, ASTRO contracted with Clarity PSO, a federally-certified patient safety organization that operates under the auspices of the Patient Safety and Quality Improvement Act of 2005...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28133704/studies-on-the-formation-of-formaldehyde-during-2-ethylhexyl-4-dimethylamino-benzoate-demethylation-in-the-presence-of-reactive-oxygen-and-chlorine-species
#6
Waldemar Studziński, Alicja Gackowska, Maciej Przybyłek, Jerzy Gaca
In order to protect the skin from UV radiation, personal care products (PCPS) often contain chemical UV-filters. These compounds can enter the environment causing serious consequences on the water ecosystems. The aim of this study was to examine, the effect of different factors, such as UV light, the presence of NaOCl and H2O2 on the formaldehyde formation during popular UV filter, 2-ethylhexyl 4-(dimethylamino)benzoate (ODPABA) demethylation. The concentration of formaldehyde was determined by VIS spectrophotometry after derivatization...
January 29, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28112195/neutron-radiation-tolerance-of-two-benchmark-thiophene-based-conjugated-polymers-the-importance-of-crystallinity-for-organic-avionics
#7
G M Paternò, V Robbiano, K J Fraser, C Frost, V García Sakai, F Cacialli
Aviation and space applications can benefit significantly from lightweight organic electronics, now spanning from displays to logics, because of the vital importance of minimising payload (size and mass). It is thus crucial to assess the damage caused to such materials by cosmic rays and neutrons, which pose a variety of hazards through atomic displacements following neutron-nucleus collisions. Here we report the first study of the neutron radiation tolerance of two poly(thiophene)s-based organic semiconductors: poly(3-hexylthiophene-2,5-diyl), P3HT, and the liquid-crystalline poly(2,5-bis (3-tetradecylthiophen-2-yl)thieno[3,2-b]thiophene), PBTTT...
January 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28103107/star-masses-and-star-planet-distances-for-earth-like-habitability
#8
David Waltham
This paper presents statistical estimates for the location and duration of habitable zones (HZs) around stars of different mass. The approach is based upon the assumption that Earth's location, and the Sun's mass, should not be highly atypical of inhabited planets. The results support climate-model-based estimates for the location of the Sun's HZ except models giving a present-day outer-edge beyond 1.64 AU. The statistical approach also demonstrates that there is a habitability issue for stars smaller than 0...
January 2017: Astrobiology
https://www.readbyqxmd.com/read/28048638/tu-d-201-04-veracity-of-data-elements-in-radiation-oncology-incident-learning-systems
#9
A Kapur, S Evans, D Brown, G Ezzell, D Hoopes, S Dieterich, K Kapetanovic, C Tomlinson
PURPOSE: Incident learning systems encompass volumes, varieties, values, and velocities of underlying data elements consistent with the V's of big data. Veracity, the 5th V however exists only if there is high inter-rater reliability (IRR) within the data elements. The purpose of this work was to assess IRR in the nationally deployed RO-ILS: Radiation Oncology-Incident Learning System (R) sponsored by the American Society for Radiation Oncology (ASTRO) and the American Association of Physicists in Medicine (AAPM)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047975/su-f-t-223-radiotherapy-incident-reporting-and-analysis-system-riras-early-experience
#10
R Kapoor, D Burkett, E Leidholdt, J Palta, M Hagan
BACKGROUND & PURPOSE: RIRAS is a web-based information system deployed on the Veterans Health Administration intranet in early 2014 to collect adverse events and good catch data; analyze the causes and contributing factors; and find ways to prevent future occurrences. MATERIAL AND METHODS: Incident learning consists of a feedback loop which starts with reporting an event, followed by analysis of contributing factors, and culminates in the development of a patient safety work product (PSWP) to prevent recurrence...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047744/we-a-201-01-memorial-introduction
#11
C Marshall
: Chris Marshall: Memorial Introduction Donald Edmonds Herbert Jr., or Don to his colleagues and friends, exemplified the "big tent" vision of medical physics, specializing in Applied Statistics and Dynamical Systems theory. He saw, more clearly than most, that "Making models is the difference between doing science and just fooling around [ref Woodworth, 2004]". Don developed an interest in chemistry at school by "reading a book" - a recurring theme in his story. He was awarded a Westinghouse Science scholarship and attended the Carnegie Institute of Technology (later Carnegie Mellon University) where his interest turned to physics and led to a BS in Physics after transfer to Northwestern University...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047624/su-g-jep3-07-real-time-image-guided-radiation-therapy-for-heterotopic-ossification-in-patients-after-hip-replacement
#12
A Le, S Jiang, R Timmerman, H Choy, A Pompos
PURPOSE: To demonstrate the feasibility of using CBCT in a real-time image guided radiation therapy (IGRT) for single fraction heterotopic ossification (HO) in patients after hip replacement. In this real-time procedure, all steps, from simulation, imaging, planning to treatment delivery, are performed at the treatment unit in one appointment time slot. This work promotes real-time treatment to create a paradigm shift in the single fraction radiation therapy. METHODS: An integrated real-time IGRT for HO was developed and tested for radiation treatment of heterotopic ossification for patient after hip replacement...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047091/we-a-201-02-modern-statistical-modeling
#13
A Niemierko
: Chris Marshall: Memorial Introduction Donald Edmonds Herbert Jr., or Don to his colleagues and friends, exemplified the "big tent" vision of medical physics, specializing in Applied Statistics and Dynamical Systems theory. He saw, more clearly than most, that "Making models is the difference between doing science and just fooling around [ref Woodworth, 2004]". Don developed an interest in chemistry at school by "reading a book" - a recurring theme in his story. He was awarded a Westinghouse Science scholarship and attended the Carnegie Institute of Technology (later Carnegie Mellon University) where his interest turned to physics and led to a BS in Physics after transfer to Northwestern University...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047030/su-g-iep3-05-effects-of-image-receptor-technology-and-dose-reduction-software-on-radiation-dose-estimates-for-fluoroscopically-guided-interventional-fgi-procedures
#14
Z Merritt, J Dave, D Eschelman, C Gonsalves
PURPOSE: To investigate the effects of image receptor technology and dose reduction software on radiation dose estimates for most frequently performed fluoroscopically-guided interventional (FGI) procedures at a tertiary health care center. METHODS: IRB approval was obtained for retrospective analysis of FGI procedures performed in the interventional radiology suites between January-2011 and December-2015. This included procedures performed using image-intensifier (II) based systems which were subsequently replaced, flat-panel-detector (FPD) based systems which were later upgraded with ClarityIQ dose reduction software (Philips Healthcare) and relatively new FPD system already equipped with ClarityIQ...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046987/su-f-p-10-a-web-based-radiation-safety-relational-database-module-for-regulatory-compliance
#15
C Rosen, B Ramsay, S Konerth, D Roller, A Ramsay
PURPOSE: Maintaining compliance with Radioactive Materials Licenses is inherently a time-consuming task requiring focus and attention to detail. Staff tasked with these responsibilities, such as the Radiation Safety Officer and associated personnel must retain disparate records for eventual placement into one or more annual reports. Entering results and records in a relational database using a web browser as the interface, and storing that data in a cloud-based storage site, removes procedural barriers...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046765/su-f-t-49-dosimetry-parameters-and-tps-commissioning-for-the-civasheet-directional-pd-103-brachytherapy-source
#16
M J Rivard
PURPOSE: The CivaSheet is a new LDR Pd-103 brachytherapy device offering directional-radiation for preferentially irradiating malignancies with healthy-tissue sparing. Observations are presented on dosimetric characterization, TPS commissioning, and evaluation of the dosesuperposition- principle for summing individual elements comprising a planar CivaSheet METHODS: The CivaSheet comprises individual sources (CivaDots, 0.05cm thick and 0.25cm diam.) inside a flexible bioabsorbable substrate with a 0...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046561/we-a-201-00-anne-and-donald-herbert-distinguished-lectureship-on-modern-statistical-modeling
#17
Joseph Deasy
: Chris Marshall: Memorial Introduction Donald Edmonds Herbert Jr., or Don to his colleagues and friends, exemplified the "big tent" vision of medical physics, specializing in Applied Statistics and Dynamical Systems theory. He saw, more clearly than most, that "Making models is the difference between doing science and just fooling around [ref Woodworth, 2004]". Don developed an interest in chemistry at school by "reading a book" - a recurring theme in his story. He was awarded a Westinghouse Science scholarship and attended the Carnegie Institute of Technology (later Carnegie Mellon University) where his interest turned to physics and led to a BS in Physics after transfer to Northwestern University...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28043267/-investigation-of-emergency-capacities-for-occupational-hazard-accidents-in-silicon-solar-cell-producing-enterprises
#18
D D Yang, J N Xu, B L Zhu
Objective: To investigate and analyze the influential factors of occupational hazard acci-dents, emergency facilities and emergency management in Silicon solar cell producing enterprises, then to pro-vide scientific strategies. Methods: The methods of occupationally healthy field investigating, inspecting of ven-tilation effectiveness, setup of emergency program and wearing chemical suit were used. Results: The mainly occupational hazard accidents factors in the process of Silicon solar cell producing included poisoning chemi-cals, high temperature, onizing radiation and some workplaces...
November 20, 2016: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28039011/a-directional-103-pd-brachytherapy-device-dosimetric-characterization-and-practical-aspects-for-clinical-use
#19
Mark J Rivard
PURPOSE: A brachytherapy (BT) device has been developed with shielding to provide directional BT for preferentially irradiating malignancies while sparing healthy tissues. The CivaSheet is a flexible low-dose-rate BT device containing CivaDots with (103)Pd shielded by a thin Au disk. This is the first report of a clinical dosimetric characterization of the CivaSheet device. METHODS AND MATERIALS: Radiation dose distributions near a CivaDot were estimated using the MCNP6 radiation transport code...
December 27, 2016: Brachytherapy
https://www.readbyqxmd.com/read/28024718/patterns-of-dysphagia-and-acute-toxicities-in-patients-with-head-and-neck-cancer-undergoing-helical-imrt%C3%A2-concurrent-chemotherapy
#20
Laura B Moroney, Jennifer Helios, Elizabeth C Ward, Jane Crombie, Leesa F Wockner, Clare L Burns, Ann-Louise Spurgin, Claire Blake, Lizbeth Kenny, Brett G M Hughes
BACKGROUND: There is limited prospective data reporting the extent of treatment related toxicities associated with helical Intensity Modulated Radiotherapy (H-IMRT) for head and neck cancer (HNC). The study aim was to investigate severity, peak incidence and recovery patterns of dysphagia and related toxicities in patients undergoing H-IMRT±chemotherapy to examine when patients are experiencing symptoms requiring supportive clinical care. METHODS: Prospective study of 212 patients undergoing H-IMRT...
January 2017: Oral Oncology
keyword
keyword
57293
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"