Publications by authors named "Thomas R Stevenson"

Background: Presently, dental hygiene education is primarily divided into classroom lectures, simulation labs, and clinical experiences. Although the recent surge of curriculum renovation in dental and medical schools centres around enhancing student engagement and active learning, classroom teaching remains teacher-focussed, involving students mainly as passive learners. H5P is an open platform for creating and sharing interactive HTML5 learning content.

View Article and Find Full Text PDF

Lynx is an x-ray telescope, one of four large satellite mission concepts currently being studied by NASA to be a flagship mission. One of Lynx's three instruments is an imaging spectrometer called the Lynx x-ray microcalorimeter (LXM), an x-ray microcalorimeter behind an x-ray optic with an angular resolution of 0.5 arc sec and ∼2 m of area at 1 keV.

View Article and Find Full Text PDF

In a scenario involving a nuclear detonation during war or a terrorist attack, acute radiation exposure combined with thermal and blast effects results in severe skin injury. Although the cutaneous injury in such a scenario may not be lethal, it may lead to inflammation, delayed wound healing and loss of the skin barrier, resulting in an increased risk of infection. In this study, we tested the potential use of timolol, a beta-adrenergic receptor antagonist, to improve epidermal wound closure after combined burn and radiation injury using an ex vivo human skin culture model.

View Article and Find Full Text PDF

Introduction: Plastic surgeons endure years of training yet remain poorly equipped to negotiate first employment contracts. Our aims were to evaluate typical plastic surgeon employment contracts and assess contract comprehensiveness. We sought elements that should be included to better preserve varied interests.

View Article and Find Full Text PDF

Background: Deep inferior epigastric artery perforator (DIEP) flap breast reconstruction requires complex microsurgical skills. Herein, we examine whether DIEP flap breast reconstruction can be performed safely without microsurgical fellowship training.

Methods: A total of 28 patients and 34 DIEP flaps were included in the study.

View Article and Find Full Text PDF

High-sensitivity receiver systems with near-ideal polarization sensitivity are highly desirable for development of millimeter and submillimeter radio astronomy. Multimoded bolometers provide a unique solution to achieve such sensitivity, for which hundreds of single-mode sensors would otherwise be required. The primary concern in employing such multimoded sensors for polarimetery is the control of the polarization systematics.

View Article and Find Full Text PDF

High-performance, integrated spectrometers operating in the far-infrared and submillimeter ranges promise to be powerful tools for the exploration of the epochs of reionization and initial galaxy formation. These devices, using high-efficiency superconducting transmission lines, can achieve the performance of a meter-scale grating spectrometer in an instrument implemented on a 4 inch silicon wafer. Such a device, when combined with a cryogenic telescope in space, provides an enabling capability for studies of the early universe.

View Article and Find Full Text PDF

Introduction: The aim of this pilot study was to investigate the effect of long-term bisphosphonate drug use (bone burden) on orthodontic tooth movement in a rat model.

Methods: Sprague Dawley rats were used for orthodontic protraction of the maxillary first molars with nickel-titanium coil springs and temporary anchorage devices as anchorage. Four groups of 5 rats each were included in the study; the first 2 groups were dosed with alendronate or a vehicle during concurrent orthodontic tooth movement.

View Article and Find Full Text PDF

"Pixie-ear" deformity is a postrhytidectomy sequela in which the ear lobe is pulled inferiorly. This deformity may be attributed to excessive skin excision inferior to the earlobe, direct suturing of the facial flap to lobule skin, or excessive scarring. When there is increased tension on the earlobe, the otobasion inferius (cephalic attachment point of lobe) migrates from a posterior cephalic position to an anterior caudal position.

View Article and Find Full Text PDF

Although human exposure to low-dose ionizing radiation can occur through a variety of sources, including natural, medical, occupational and accidental, the true risks of low-dose ionizing radiation are still poorly understood in humans. Here, the global transcriptional responses of human skin after ex vivo exposure to low (0.05 Gy) and high (5 Gy) doses of X rays and of time in culture (0 Gy) at 0, 2, 8 and 30 h postirradiation were analyzed and compared.

View Article and Find Full Text PDF

As the technique of autologous fat grafting is being refined and perfected, its clinical applications are expanding. The use of autologous fat grafting for primary breast augmentation is controversial due to a lack of clarity regarding its safety and efficacy. Most notably, concerns about interference with the detection of breast cancer have been raised, but these have not been clearly addressed in the literature.

View Article and Find Full Text PDF

Background: Health care disparities have been documented in rural populations. The authors hypothesized that breast cancer patients in urban counties would have higher rates of postmastectomy breast reconstruction relative to patients in surrounding near-metro and rural counties.

Methods: The authors used the Surveillance, Epidemiology, and End Results database to identify patients diagnosed with breast cancer and treated with mastectomy in the greater Sacramento area between 2000 and 2006.

View Article and Find Full Text PDF

We report nine cases in which the neuro-veno-adipo-fascial (NVAF) flap was used to perform reconstruction of foot wounds over a 7-year period. Complications occurred in five (56%) patients. One patient suffered total loss of the flap and four experienced partial loss of the NVAF flap.

View Article and Find Full Text PDF

Background: Integrated plastic surgery residency training is growing in popularity, bringing new challenges to program directors and applicants. The purpose of this study was to identify characteristics of successful applicants and to obtain feedback from applicants to improve the integrated plastic surgery residency training application and interview process.

Methods: An anonymous survey assessing applicant academic qualifications, number of interviews offered and attended, and opinions about the application and interview process was distributed electronically to the 2006 integrated plastic surgery residency training applicant class.

View Article and Find Full Text PDF

Learning Objectives: After studying this article, the participant should be able to: 1. Understand the evaluation of a patient with a lower extremity wound. 2.

View Article and Find Full Text PDF

Background: The purpose of this study was to determine whether seroma formation following abdominoplasty is associated with simultaneous liposuction of the flanks and to stratify the risk of developing seromas according to body mass index.

Methods: A retrospective review was conducted of 118 consecutive patients who underwent abdominoplasty with or without flank liposuction from 1992 to 2002. Patients in the abdominoplasty with flank liposuction category were further substratified according to the use of conventional versus ultrasound-assisted liposuction.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessionap0r00hpgncchql178g5gtq27n2rnfs6): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once