BACKGROUND Cutting and piercing injuries are among the leading causes of unintentional injury morbidity in developed countries. In New Zealand, cutting and piercing are second only to falls as the most frequent cause of unintentional home injuries resulting in admissions to hospital among people aged 20 to 64 years. Alcohol intake is known to be associated with many other types of injury. We us...

This study investigated the effects of seawater on cavitation noise using a water jet test, a two-dimensional wing test, and a three-dimensional wing test. A model propeller cavitation test was conducted in a cavitation tunnel using seawater, in order to determine the effects of propeller cavitation more precisely. In the cavitation tests, measured propeller performance for both cavitation nois...

A technique integrating multishot periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) and parallel imaging is presented for diffusion echo-planar imaging (EPI) at high spatial resolution. The method combines the advantages of parallel imaging to achieve accelerated sampling along the phase-encoding direction, and PROPELLER acquisition to further decrease the...

Intraoral piercing has increased in popularity in the last few years. This type of jewelry has been associated with periodontal and muco-gingival defects such as attachment loss and gingival recession. This case report described a 25-year-old female presented to the clinic of Periodontics at Witten/Herdecke University in Witten, Germany, with a tongue stud placed through the mid-dorsum of her t...

BACKGROUND Little is known about the prevalence and consequences of body art application. OBJECTIVE Our aim was to provide US tattooing and body piercing prevalence, societal distribution, and medical and social consequence data. METHODS Random digit dialing technology was used to obtain a national probability sample of 253 women and 247 men who were 18 to 50 years of age. RESULTS Of our ...

We have carried out a series of extended unbiased molecular dynamics (MD) simulations (up to 10 μs long, ∼162 μs in total) complemented by replica-exchange with the collective variable tempering (RECT) approach for several human telomeric DNA G-quadruplex (GQ) topologies with TTA propeller loops. We used different AMBER DNA force-field variants and also processed simulations by Markov State Mod...

A blade element momentum theory propeller model is coupled with a commercial RANS solver. This allows the fully appended self propulsion of the autonomous underwater vehicle Autosub 3 to be considered. The quasi-steady propeller model has been developed to allow for circumferential and radial variations in axial and tangential inflow. The non-uniform inflow is due to control surface deflections...

BACKGROUND AND AIMS Perforator flaps increasingly find acceptance and use in hand reconstructive surgery. A propeller flap is an island flap that moves from one orientation to another by rotating around its vascular pedicle. It is now possible to design propeller flaps based on a single perforator, so-called "perforator-based propeller flaps," but they are more prone to vascular impairment when...

Between October, 2003, and August, 2009, 13 patients were admitted to our hospital for management of propeller related injuries. These injuries ranged in severity from superficial lacerations that did not require closure to severe, devastating injuries with limb loss (Table 1). No patients died of propeller injuries after reaching the hospital during the period of this study. Five of the injuri...

Proteases have a variety of strategies for selecting substrates in order to prevent uncontrolled protein degradation. A recent crystal structure determination of prolyl oligopeptidase has suggested a way for substrate selection involving an unclosed seven-bladed beta-propeller domain. We have engineered a disulfide bond between the first and seventh blades of the propeller, which resulted in th...