BACKGROUND AND PURPOSE Real-time tomographic reflection is a novel technique that uses a geometrically fixed arrangement of a conventional ultrasound transducer, a transducer-incorporated monitor, and a half-silvered mirror. This device, dubbed the Sonic Flashlight, generates a virtual anatomically scaled image, obviating the need for a separate monitor. It may therefore facilitate invasive pro...

Most randomised-controlled trials of acupuncture use penetrating sham acupuncture as control intervention. Sham acupuncture is described as acupuncture at points which are not known as acupuncture points. Because of physiological changes due to skin penetration sham acupuncture should not be defined as placebo control. In 1998 a new placebo needle was introduced by Streitberger. This placebo ne...

BACKGROUND AND OBJECTIVES Ultrasound-guided cervical periradicular steroid injection (US-CPSI) is an attractive alternate to conventional C-arm guided transforaminal epidural injection for treatment of cervical radicular pain. We compared the technical differences and clinical outcomes between these two techniques. METHODS Following ultrasound-guided needle placement, the extent of contrast m...

According to literature, penetration pricing is the dominant pricing strategy for network effect markets. In this paper we show that diffusion of products in a network effect market does not only vary with the set of pricing strategies chosen by competing vendors but also strongly depends on the topological structure of the customers' network. This stresses the inappropriateness of classical "i...

To diagnose the vulnerabilities of target system using a remote penetration test approach needs to avoid the modification of the security configuration of the target network. So the carrier of test codes needs to hide from the IDS filter out of our penetrating test codes. Hence, we proposed a polymorphic carrier which carries encrypted test codes and diversified decrypters, and, the proposed ca...

Africa needs access to the powerful information and communication tools of the internet in order to obtain the resources and efficiency essential for its sustainable development. Unfortunately, in 2014, the data from internetlivestats.com showed only 9.8% of African populations have access to the internet. This relative low internet penetration rate signals a problem that may threaten the econo...