The purpose of the present study was to investigate the suitability of bioabsorbable drawn selfreinforced polyglycolide (SR-PGA) and poly-L/DL-lactide 70:30 (SR-PLA70) implants in experimental and clinical fixations of cancellous bone osteotomies, arthrodeses and fractures. The study consists of a set of two experimental and two clinical studies, including 109 experimental animals and 87 patien...

Using parallel three-dimensional molecular dynamics simulations of line-like coupled pancake vortices, we consider the e€ect of inter-layer coupling strength and pinning correlation on the magnetization curves of anisotropic super-conductors. Columnar pins produce the largest critical current and are insensitive to layer interaction strength. Point pins are increasingly e€ective at pinning the ...

1.. 1 J ‘ #{163} commercial party related directly or indirectly to the subject of this culiuren 5 iractures. article. In our case, the Steinmann pins provided stable fixation and also facilitated reduction by improving control of the fracture segments containing the pins. The operative exposure and periosteal stripping were minimal and pin removal was easy, although requiring a second general ...

Background: Analyzing differential-gene-expression data in the context of protein-interaction networks (PINs) yields information on the functional cellular status. PINs can be formally represented as graphs, and approximating PINs as undirected graphs allows the network properties to be characterized using well-established graph measures. This paper outlines features of PINs derived from 29 stu...

This study examined the effects of norepinephrine (NE) and phentolamine on the electrical activities of pain-excited neurons (PENs) and pain-inhibited neurons (PINs) in the nucleus accumbens (NAc) of Wistar rats. Trains of electric pulses applied to the right sciatic nerve were used to provide noxious stimulation, and the discharges of PENs and PINs were recorded using a glass microelectrode. O...

The author presents a simplified technique for midline screw-plate fixation in fusion procedures after anterior cervical discectomy, in which the plate is introduced over the Caspar distractor pins. The Uniplate system used, with a single screw in each vertebral body, minimizes bone damage to the vertebral body as the screws can be fixed in the holes previously used for the Caspar distractor pi...

Consider (with apologies to Adam Smith) an efficient pin producer selling half her production in the convertible currency market (where buyers are picky) and the rest in the domestic market to inefficient, financially shaky (state-owned) enterprises. The pins are similar but not identical, with only good pins sold in the convertible currency market and both good and bad pins in the domestic mar...

The properties of certain networks are determined by hidden variables that are not explicitly measured. The conditional probability (propagator) that a vertex with a given value of the hidden variable is connected to k other vertices determines all measurable properties. We study hidden variable models and find an averaging approximation that enables us to obtain a general analytical result for...

The humeri of eleven feline cadavers were dissected and safe anatomical areas for placing external skeletal fixator pins were determined. Relevant measurements taken of the humeral condyle enabled a determination of a safe pin diameter range of 1.5 to 2.2 mm for transcondylar pins. Further anatomical measurements allowed recommendations to be made to angle pins in the distal humerus in a distol...

BACKGROUND Whether percutaneous pinning or plate fixation is more appropriate for metacarpal fractures is still open to debate. Our study purpose was to review the current literature in an attempt to determine the optimal treatment modality for metacarpal fractures on the basis of functional outcomes, radiographic outcome and rates of complications. METHODS We selected Pubmed, Cochrane librar...