BACKGROUND Treatment of acute complete acromioclavicular (AC) dislocation is still controversial. Both non-surgical and surgical methods have been reported with similar results. In addition, once surgical treatment is chosen, a satisfactory surgical technique has not been developed yet. METHODS Sixty consecutive patients who sustained 60 acute complete AC dislocations were treated using corac...

INTRODUCTION. In Time-of-flight (TOF) angiography, fresh blood inflowing spins provide bright intravascular signal while static tissue signal suppression is obtained in the steady state with TR<<T1. At 1.5 and 3T, stronger background suppression is achieved with magnetization transfer (MT), and venous contribution is attenuated with saturation RF pulses. Ramp shaped RF pulses (TONE) can be used...

Current theorizing and evidence suggest that parenting stress might be greater among parents from both low and high socioeconomic positions (SEP) compared with those from intermediate levels because of material hardship among parents of low SEP and employment demands among parents of high SEP. However, little is known about how this socioeconomic variation in stress relates to the support that ...

This study examines how parents of family and nonfamily abducted children cope with stress due to the disappearance of their child. The results show that all parents experience distress, regardless of whether it was a family or nonfamily abduction. Associated with parental distress are factors such as prior family stress, age of the child, recovery status of the child, and measures of social su...

R ules for describing certain simple cellular aut omata in a uni ver se of dense-packed sp heres are presented an d explored . Speclfically investigated are oscilla tors and other stable forms for a rule int roduced in [2] as a. candidate for 2. game of Life. T he "signature" of a form is defined , and t he signature s are given for all known smaUer forms for the above ru le . Rates of growth a...

In this paper, we propose a new approach to live location sharing among a group of friends that does not rely on a central server as a hub for exchanging locations messages, but is done in a peer-topeer manner by pushing selective location updates via XMPP messages. That is, only those contacts speci cally authorized by users will be noti ed of location changes via push messages, but no third-p...

Dedicated to our friends Beresford and Velvel on the occasion of their sixtieth birthdays. ABSTRACT We show that a certain matrix norm ratio studied by Parlett has a supremum that is O(p n) when the chosen norm is the Frobenius norm, while it is O(log n) for the 2-norm. This ratio arises in Parlett's analysis of the Cholesky decomposition of an n by n matrix.

By adopting recent advances in music creation technologies, such as digital audio workstations and singing voice synthesizers, people can now create songs in their personal computers. Computers can also assist in creating lyrics or generating them automatically, although this aspect has been less thoroughly researched and is limited to rhyme and meter. This study focuses on the structural relat...