نتایج جستجو برای: 3 dimensionalfilm dosimetry tps heterogeneity

تعداد نتایج: 1901498  

2010
Monique van Prooijen Thilakshan Kanesalingam Mohammad K. Islam Robert K. Heaton

The impact of the treatment couch on a radiotherapy plan is rarely fully assessed during the treatment planning process. Incorporating a couch model into the treatment planning system (TPS) enables the planner to avoid or dosimetrically evaluate beam-couch intersections. In this work, we demonstrate how existing TPS tools can be used to establish this capability and assess the accuracy and effe...

Journal: :Journal of Physics: Conference Series 2008

ژورنال: :مجله دانشکده دندانپزشکی مشهد 0
ناصر ناصر سرگلزایی naser sargolzaie assistant professor, dept of periodontics, school of dentistry and dental research center of mashhad university of medical sciences, mashhad, iranاستادیار گروه پریودانتیکس دانشکده دندانپزشکی و مرکز تحقیقات دندانپزشکی دانشگاه علوم پزشکی مشهد حبیب ا... حبیب ا... قنبری habibollah ghanbary associate professor, dept of periodontics, school of dentistry and dental research center of mashhad university of medical sciences, mashhad, iranدانشیار گروه پریودانتیکس دانشکده دندانپزشکی و مرکز تحقیقات دندانپزشکی دانشگاه علوم پزشکی مشهدسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) یاسر یاسر محمدزاده رضایی yaser mohammadzadeh rezaee dentistدندانپزشکسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences)

مقدمه: ایمپلنت های دندانی که جهت درمان بیماران بی دندان به طور چشمگیری مورد استفاده قرار می گیرد، اجسام خارجی هستند که در تماس مستقیم با استخوان می باشد و بخاطر داشتن این خصوصیت، اجزاء ساختاری آن باید به گونه ای باشد که کاربرد آن فاقد زیان برای بافت های اطراف آن باشد.  از جمله اجزاء ساختاری می توان به خصوصیت سطحی ایمپلنت ها اشاره نمود. هدف از این مطالعه بررسی تاثیر دو نوع خصوصیت سطحی ایمپلنت tp...

2018
Tingting Jin Yulin Gao Kanglai He Feng Ge

Trehalose is the major blood sugar in insects. Physiological significance of this compound has been extensively reported. Trehalose-6-phosphate synthase (TPS) is an important enzyme in the trehalose biosynthesis pathway. Full-length cDNAs of TPS (Of tps) and its alternative splicing isoform (Of tps_isoformI) were cloned from the Asian corn borer (ACB), Ostrinia furnacalis (Guenée; Lepidoptera: ...

2012
Baozhou Sun Dharanipathy Rangaraj Sunita Boddu Murty Goddu Deshan Yang Geethpriya Palaniswaamy Sridhar Yaddanapudi Omar Wooten Sasa Mutic

Experimental methods are commonly used for patient-specific IMRT delivery verification. There are a variety of IMRT QA techniques which have been proposed and clinically used with a common understanding that not one single method can detect all possible errors. The aim of this work was to compare the efficiency and effectiveness of independent dose calculation followed by machine log file analy...

Journal: :American heart journal 2002
Armin Arbab-Zadeh Valmik Bhargava Robert J Russo Craig S Levin Shirish K Jani Jennifer Lucisano Paul S Teirstein

BACKGROUND The Scripps Trial was a randomized study of intracoronary artery radiation therapy with iridium 192 used to treat restenotic vessels. We used the intravascular ultrasound data from the Scripps Trial to investigate whether a lumen-centered gamma or beta radiation source would reduce radiation dose heterogeneity compared with the noncentered source position used. METHODS Analysis inc...

2017
Zhiwei Zhang Zhenhong Gao Yuan Wang Yahong Yuan Jing Dong Tianli Yue

Forchlorfenuron (1-(2-chloro-4-pyridyl)-3-phenylurea, FCF) is a plant growth regulator, being extensively used for increasing kiwifruit size. The toxicological properties of its may persist in their transformation products (TPs) or even higher toxicity than FCF. TPs elucidation of FCF in postharvest kiwifruit (Actinidia chinensis, Chinese gooseberry) by the liquid chromatography ionization hybr...

Journal: :BIO web of conferences 2021

An assessment of the efficacy preparations (Kornevin, SP; Albit, TPS; Epin-extra) in production planting material Northern white cedar by vegetative propagation with wood cuttings under conditions Central Black Earth Region Russian Federation is given on example Orel region. All studied had a significant effect rooting process cuttings. The obtained and analyzed data phenological observations s...

2015
Ching-Yu Lee Meng-Huang Wu Yen-Yao Li Chin-Chang Cheng Chu-Hsiang Hsu Tsung-Jen Huang Robert Wen-Wei Hsu Federico Canavese.

Transpedicular screw (TPS) fixation in unstable thoracic and lumbar (TL) spine fractures remains technically difficult because of destroyed anatomical landmarks, unstable gross segments, and discrepancies in anatomic orientation using conventional anatomic landmarks, fluoroscopic guidance, or computed tomography (CT)-based navigation. In this study, we evaluated the safety and accuracy of TPS p...

2017
Wenhua Zhu Siwen Chen Ronggui Chen Zhiqing Peng Jun Wan Benyan Wu

BACKGROUND Nonalcoholic steatohepatitis (NASH) is a progressive form of nonalcoholic fatty liver disease, for which there is currently no safe and effective drug for therapy. In this study, we explored the effects of taurine, tea polyphenols (TPs), or a combination thereof, on NASH rats. METHODS Rats were divided into a normal group, a high-fat diet induced model group and a treatment group (...

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