Generating synthetic computed tomography for radiotherapy: SynthRAD2023 challenge report.

Radiation therapy plays a crucial role in cancer treatment, necessitating precise delivery of radiation to tumors while sparing healthy tissues over multiple days. Computed tomography (CT) is integral for treatment planning, offering electron density data crucial for accurate dose calculations. However, accurately representing patient anatomy is challenging, especially in adaptive radiotherapy, where CT is not acquired daily.

Nonlinear Effects in Black Hole Ringdown.

We report evidence for nonlinear modes in the ringdown stage of the gravitational waveform produced by the merger of two comparable-mass black holes. We consider both the coalescence of black hole binaries in quasicircular orbits and high-energy, head-on black hole collisions. The presence of nonlinear modes in the numerical simulations confirms that general-relativistic nonlinearities are important and must be considered in gravitational-wave data analysis.

Ghost Instabilities in Self-Interacting Vector Fields: The Problem with Proca Fields.

Massive vector fields feature in several areas of particle physics, e.g., as carriers of weak interactions, dark matter candidates, or an effective description of photons in a plasma.

Noise-induced hearing injury and comorbidities among postdeployment U.S. Army soldiers: April 2003-June 2009.

Purpose: To evaluate noise-induced hearing injury (NIHI) and blast-related comorbidities among U.S. Army soldiers in an effort to understand the morbidity burden and future health service requirements for wounded war fighters returning from the Central Command Area of Responsibility, predominantly from Iraq and Afghanistan deployments.

Epidemiology of hearing impairment and noise-induced hearing injury among U.S. military personnel, 2003-2005.

Introduction: Rates of noise-induced hearing injury (NIHI) among U.S. active duty military have not been previously described using available military medical surveillance data.

Attrition of U.S. military enlistees with waivers for hearing deficiency, 1995-2004.

Background: Hearing deficiency is the condition for which accession medical waivers are most commonly granted. The retention of individuals entering service with a waiver for hearing deficiency has not been previously studied.

Methods: Military retention among new enlistees with a medical waiver for hearing deficiency was compared with that among a matched comparison group of fully qualified enlistees.

A comparison of the military entrance processing station screening audiogram with the Defense Occupational and Environmental Health Readiness System reference audiogram at Fort Sill, Oklahoma, in 2000.

Background: The Department of Defense Hearing Conservation Program requires that a reference audiogram be performed at initial entry training (IET), before noise exposure. In the Army, only Fort Sill, home of the field artillery, and Fort Benning, home of the infantry, are in compliance. All military applicants receive a screening audiogram at a military entrance processing station (MEPS) to qualify for service.

Postdeployment hearing loss in U.S. Army soldiers seen at audiology clinics from April 1, 2003, through March 31, 2004.

Purpose: U.S. Army soldiers face unique noise exposures in the current deployed setting.

Wanted: a national standard for early hearing detection and intervention outcomes data.

The Joint Committee on Infant Hearing (JCIH, 2000) has presented principles and guidelines for universal newborn hearing screening and early hearing detection and intervention (EHDI). The guidelines describe the need for a national data set for early hearing detection and intervention. The guidelines fail to provide the specific constructs for such a data set.