background: surgical treatments for acromioclavicular (ac) joint dislocation present with some complications. the present study was designed to evaluate the double-button fixation system in the management of acute acromioclavicular joint dislocation. methods: this cross sectional study, done between february 2011 to june 2014, consisted of 28 patients who underwent surgical management by the do...

children who are operated for biliary atresia by the kasai procedure have approximately 30% chance of survival for 5 years. in an attempt to define the role of this operation for biliary atresia, the surgery records of the past 15 years were reviewed. the aim of this study was to assess the benefits achieved from this operation in infants with biliary atresia. this study was conducted in the de...

In the process of development of some technologies about Ubiquitous computing, the application of embedded intelligent devices is booming. Meanwhile, information security will face more serious threats than before. To improve the security of information terminal’s operation system, this paper analyzed the threats to system’s information security which comes from the abnormal operation by proces...

This extended abstract describes a mechanism to automatically incorporate safety requirements into operational speciications written in Z. For every individual operation the global (i.e. operation independent) safety invariants are transformed into a predicate which is used to extend the original precondition of the operation. The operation constructed this way shows the same behavior as the or...

In which it is proposed that a single mathematical operation – determining compositions of transformational mappings – underlies the common cortical neuroanatomy of brain areas responsible for vision, motor and thought. A biologically plausible mechanism that implements this mathematical operation is called the map-seeking circuit.

acetic acid has been applied as an efficient catalyst and a green solvent for the two–component condensation reaction consisting of benzaldehyde, 2-amino-benzamide. the advantages of this protocol was excellent yield, short reaction time, mild reaction conditions, higher availability, low costs, more environmentally friendly, lack of need for column chromatography and simple work-up procedure. ...

the reaction of ch₃nh₂ with o₂ on the singlet potential energy surfaces (pes) was carried out using the b3lyp, ccsd(t) and g3b3 theoretical approaches along with 6-311++g(3df,3pd) basis set. the suggested mechanism for the title reaction consists of one pre-reactive complex. from the pre-reactive complex, nine types of products, ch2nh+h2o2, ch3nh+ooh, nh2cho+h2o, ch2nho+h2o, nh3+hcooh, ch2nh+h2...

Delayed brain stem ischaemia following operation for spasmodic torticollis, is described. The mechanism for this catastrophe is considered and a hypothesis proposed which might allow its prediction and prevention. The overall results, the side and complications of this operation are summarised.

At present, the common operation mechanism of multiple classifier systems is the combination of classifier outputs. Recently, some researchers pointed out the potentialities of “dynamic classifier selection” as an alternative operation mechanism. However, such potentialities have been motivated so far by experimental results and qualitative arguments. This paper is aimed to provide a theoretica...

We introduce a new all-optical mechanism that can compress the bandwidth of light pulses to absolute zero, and bring them to a complete stop. The mechanism can be realized in a system consisting of a waveguide side coupled to tunable resonators, which generates a photonic band structure that represents a classical analogue of the electromagnetically induced transparency. The same system can als...