نتایج جستجو برای: midline dose

تعداد نتایج: 320901  

 ABSTRACTBackground: Monte Carlo simulation has been used by many researchers to calculate organ and effective dose of patients arising from conventional X-ray examinations. In this study the radiation transport code, MCNP-4C, has been used to perform Monte Carlo simulations to estimate radiation dose delivered to different organs in conventional X-ray examinations.Material and Methods: In this...

2011
Evangelia Peponi Christoph Glanzmann Bettina Willi Gerhard Huber Gabriela Studer

BACKGROUND To evaluate the objective and subjective long term swallowing function, and to relate dysphagia to the radiation dose delivered to the critical anatomical structures in head and neck cancer patients treated with intensity modulated radiation therapy (IMRT, +/- chemotherapy), using a midline protection contour (below hyoid, ~level of vertebra 2/3). METHODS 82 patients with stage III...

Journal: :Development 2006
Torsten Bossing Andrea H Brand

The Drosophila ventral midline has proven to be a useful model for understanding the function of central organizers during neurogenesis. The midline is similar to the vertebrate floor plate, in that it plays an essential role in cell fate determination in the lateral CNS and also, later, in axon pathfinding. Despite the importance of the midline, the specification of midline cell fates is still...

2002
Jason S. Lewis Judith M. Connett Joel R. Garbow Thomas L. Buettner Yasuhisa Fujibayashi James W. Fleshman Michael J. Welch

Laparoscopic colectomy for curable colon cancer may result in the development of abdominal wall implants because of disseminated disease and the favorable environment of the wound site for cell implantation. Injection of disaggregated human GW39 colon cancer cells into the hamster peritoneum represents a model of tumor spillage that may occur during dissection, manipulation, resection, and extr...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2010
Swati Banerjee Kevin Blauth Kimberly Peters Stephen L Rogers Alan S Fanning Manzoor A Bhat

Slit/Roundabout (Robo) signaling controls midline repulsive axon guidance. However, proteins that interact with Slit/Robo at the cell surface remain largely uncharacterized. Here, we report that the Drosophila transmembrane septate junction-specific protein Neurexin IV (Nrx IV) functions in midline repulsive axon guidance. Nrx IV is expressed in the neurons of the developing ventral nerve cord,...

Journal: :Asian Journal of Medical Sciences 2023

Background: Uterine stimulants are medications used to induce/augment labor, induce abortion, and prevent postpartum hemorrhage. Currently, available drugs carrying adverse effects, hence the present study is designed effect of Carica papaya raw fruits extract in comparison with oxytocin using vitro rat uterus preparations. Aims Objectives: Primary secondary aims were evaluate uterine stimulant...

Ahmad Enhesari, Fatemeh Karami Robati, Maedeh Jafari, Saeedeh Parvaresh, Seyed Ali Moafi,

Background: Vesicoureteral reflux (urinary reflux) is one of the most common congenital anomalies in children. This study aimed to compare the ureteral opening distance from the midline in children with vesicoureteral reflux (VUR) and healthy children Methods: This cross-sectional study was performed on the children with pyelonephritis who were referred to Afzalipour Hospital in Kerman, Iran f...

2015
Daniel W. Bailey Iris Z. Wang Tara Lakeman Lee D. Hales Anurag K. Singh Matthew B. Podgorsak

This study compares lung dose distributions for two common techniques of total body photon irradiation (TBI) at extended source-to-surface distance calculated with, and without, tissue density correction (TDC). Lung dose correction factors as a function of lateral thorax separation are approximated for bilateral opposed TBI (supine), similar to those published for anteroposterior-posteroanterio...

Journal: :Development 1997
T V Menne K Lüer G M Technau C Klämbt

Cells located at the midline of the developing central nervous system perform a number of conserved functions during the establishment of the lateral CNS. The midline cells of the Drosophila CNS were previously shown to be required for correct pattern formation in the ventral ectoderm and for the induction of specific mesodermal cells. Here we investigated whether the midline cells are required...

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