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Pulse-by-pulse treatment planning and its application to generic observations of ultra-high dose rate (FLASH) radiotherapy with photons and protons.
Phys Med Biol
January 2025
Joint Department of Physics, The Royal Marsden NHS Foundation Trust, Downs Road, Sutton, London, SM2 5PT, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND.
The exact temporal characteristics of beam delivery affect the efficacy and outcome of ultra-high dose rate (UHDR or "FLASH") radiotherapy, mainly due to the influence of the beam pulse structure on mean dose rate. Single beams may also be delivered in separate treatment sessions to elevate mean dose rate. This paper therefore describes a model for pulse-by-pulse treatment planning and demonstrates its application by making some generic observations of the characteristics of FLASH radiotherapy with photons and protons.
View Article and Find Full Text PDFSteam Generator Maintenance Robot Design and Obstacle Avoidance Path Planning.
Sensors (Basel)
January 2025
College of Resource Environmental and Safety Engineering, University of South China, Hengyang 421001, China.
To solve the issue of inconvenient and dangerous manual operation during the installation and removal of the main pipe plugging plate in the steam generator in nuclear power plants, a ten-degree-of-freedom plugging robot was designed in the present study that includes a collaborative robotic arm coupled with a servo electric cylinder. By establishing a joint coordinate system for the robot model, a D-H parameter model for the plate plugging robot was established, and the forward and inverse kinematics were solved. The volume level approximate convex decomposition algorithm was used to fit the steam generator model with a convex packet, and an experimental simulation platform was constructed.
View Article and Find Full Text PDFNew Zealand Early Learning Service Menus Do Not Meet Health New Zealand Guidelines for Providing Healthy Menus and Reducing Food-Related Choking in Children.
Health Promot J Austr
January 2025
School of Sport, Exercise and Nutrition, Massey University, Auckland, New Zealand.
Objective: To assess alignment of food and drinks served to New Zealand (NZ) children in early learning services (ELS) with the Health NZ (formerly known as Ministry of Health) Healthy Food and Drink (HFD) and Reducing Food Related Choking (choking) guidance.
Methods: Menus (271) collected remotely from 148 ELS from November 2020-March 2021 were analysed for their nutritional quality based on a 'traffic light' classification of 'green' (most nutritious), 'amber' (moderately nutritious) and 'red' (least nutritious) based on the guidance.
Results: Overall, 2.
Human papillomavirus (HPV) vaccination among males is poorly understood. We systematically reviewed individual socioeconomic/health-related characteristics associated with HPV vaccine initiation and vaccination series completion among males in the United States. We searched for literature up to August 1, 2023, and pooled appropriate multivariable-adjusted results using an inverse variance random effects model, with results expressed as odds ratios.
View Article and Find Full Text PDFGeographic distribution and demographic factors associated with use of a long-acting reversible contraceptive (LARC) in Ethiopia.
Geospat Health
January 2025
College for Public Health and Social Justice, Saint Louis University, Missouri.
Background: Increasing access to and utilization of long-acting reversible contraceptives (LARC) can prevent unintended pregnancies and reduce unmet need for family planning in Ethiopia However, LARC uptake lags behind less effective contraceptive methods. This study aimed to analyze the geographical distribution and demographic factors associated to LARC uptake.
Methods: The 2019 Performance Monitoring For Action Ethiopia (PMA Ethiopia) survey data was used.
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