Results 101 to 110 of about 6,389,740 (364)

Evaluation of the dose reduction effect of crystalline lens exposure in cone‐beam computed tomography with bismuth eye shield for image‐guided radiation therapy: An anthropomorphic phantom study

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract This study aimed to evaluate the dose‐exposure reduction effect of a crystalline lens with a bismuth eye shield using cone‐beam computed tomography (CBCT) for head image‐guided radiation therapy. The ocular surface dose of the head phantom (THRA‐1) is defined as a crystalline lens exposure dose and is measured using a radiophotoluminescence ...
Tatsuya Yoshida, Koji Sasaki, Yoshiyuki Kawasaki, Tomoki Hayakawa, Toshiyuki Kawadai, Takako Shibasaki   +5 more
wiley   +1 more source

Stereotactic radiotherapy for metastatic brain tumors: A comparative analysis of dose distributions among VMAT, Helical TomoTherapy, CyberKnife, Gamma Knife, and ZAP‐X

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract This study evaluates various radiotherapy techniques for treating metastatic brain tumor (BT), focusing on non‐coplanar volumetric modulated arc radiotherapy (NC‐VMAT), coplanar VMAT (C‐VMAT), Helical TomoTherapy (HT), CyberKnife (CK), Gamma Knife (GK), and ZAP‐X.
Toshihiro Suzuki, Masahide Saito, Ryutaro Nomura, Hikaru Nemoto, Naoto Yanagisawa, Ryuma Sawada, Zennosuke Mochizuki, Naoki Sano, Hiroshi Onishi, Hiroshi Takahashi   +9 more
wiley   +1 more source

Meta-Analysis of High-Risk Sexual Behavior in Persons Aware and Unaware They are Infected With HIV in the United States: Implications for HIV Prevention Programs

Journal of Acquired Immune Deficiency Syndromes, 2005
Objectives:To compare the prevalence of high-risk sexual behaviors in HIV+ persons aware of their serostatus with that in HIV+ persons unaware of their status in the United States and to discuss implications for HIV prevention programs.
G. Marks, N. Crepaz, Senterfitt Jw, Janssen Rs   +3 more
semanticscholar   +1 more source

An extension to the OVH concept for knowledge‐based dose volume histogram prediction in lung tumor volumetric‐modulated arc therapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Volumetric‐modulated arc therapy (VMAT) treatment planning allows a compromise between a sufficient coverage of the planning target volume (PTV) and a simultaneous sparing of organs‐at‐risk (OARs). Particularly in the case of lung tumors, deciding whether it is possible or worth spending more time on further improvements of a treatment
Johann Brand, Juliane Szkitsak, Oliver J. Ott, Christoph Bert, Stefan Speer   +4 more
wiley   +1 more source

Sexual Function and Sexual Behavior in Women with Breast Cancer Having Sexual Distress, Zanjan, Iran [PDF]

Preventive Care in Nursing and Midwifery Journal, 2017
Background: Sexual relationships of women with breast cancer are affected by diagnostic and therapeutic procedures. Objectives: The aim of this study was to assess sexual function and sexual behavior in women with breast cancer having sexual distress in
Esmkhani M, Kharaghani R, Merghaty Khoie E, Faghihzadeh S, Shakibazadeh E   +4 more
doaj  

Unwanted Advances in Higher Education: Uncovering Sexual Harassment Experiences in Academia with Text Mining [PDF]

arXiv, 2019
Sexual harassment in academia is often a hidden problem because victims are usually reluctant to report their experiences. Recently, a web survey was developed to provide an opportunity to share thousands of sexual harassment experiences in academia. Using an efficient approach, this study collected and investigated more than 2,000 sexual harassment ...
arxiv  

The Benefit of Sex in Noisy Evolutionary Search [PDF]

arXiv, 2015
The benefit of sexual recombination is one of the most fundamental questions both in population genetics and evolutionary computation. It is widely believed that recombination helps solving difficult optimization problems. We present the first result, which rigorously proves that it is beneficial to use sexual recombination in an uncertain environment ...
arxiv  

Teen Dating Violence (Physical and Sexual) Among US High School Students: Findings From the 2013 National Youth Risk Behavior Survey.

JAMA pediatrics, 2015
IMPORTANCE National estimates of teen dating violence (TDV) reveal high rates of victimization among high school populations. The Centers for Disease Control and Prevention's national Youth Risk Behavior Survey has provided often-cited estimates of ...
K. Vagi, Emily O'Malley Olsen, Kathleen C. Basile, Alana M. Vivolo-Kantor   +3 more
semanticscholar   +1 more source

Heightened activity in social reward networks is associated with adolescents’ risky sexual behaviors

Developmental Cognitive Neuroscience, 2017
Adolescent sexual risk behavior can lead to serious health consequences, yet few investigations have addressed its neurodevelopmental mechanisms. Social neurocircuitry is postulated to underlie the development of risky sexual behavior, and response to ...
Kristen L. Eckstrand, Sophia Choukas-Bradley, Arpita Mohanty, Marissa Cross, Nicholas B. Allen, Jennifer S. Silk, Neil P. Jones, Erika E. Forbes   +7 more
doaj  

Prevalence of sexual dysfunctions and associated risk factors in Poland

Archives of Medical Science, 2019
Introduction Many biological, psychological and sociocultural factors influence the prevalence of sexual dysfunctions and sexual behavior. The purpose of the study was to evaluate the prevalence of sexual dysfunctions and sexual behaviors.
Zbigniew Lew-Starowicz, Kamila Czajkowska   +1 more
doaj   +1 more source