The snakeboard is shown to possess two decoupling vector fields, and to be kinematically controllable. Accordingly, the problem of steering the snakeboard from a given configuration at rest to a desired configuration at rest is posed as a constrained static nonlinear inversion problem. An explicit algorithmic solution to the problem is provided, and its limitations are discussed. An ad hoc solu...

In mobile computing, the proxy-based software may access the proxy far from the visited network rather than the nearby proxy. Accordingly, the proxy-based software’s communication hardly gets advantages from the proxy and may suffer disturbances. We propose the Tapster as the transparent proxy redirector for mobile computing. The Tapster can automatically redirect applications’ requests to a ne...

The world of system development methods is changing as rigorous ‘off-the-shelf’ methods become more popular. The need for configuration of such methods in a structured way is increasing accordingly. In this paper, method configuration is considered as a particular kind of method engineering focusing on adaptation of a base method. We propose a method configuration process based on the concepts ...

Developing a configurator requires a deep understanding of the configurable product. The configuration logic must encompass the way product components may be combined and customized, as well as how the integrity of a configuration can be verified. When products evolve over time, the configurator must be adapted accordingly. Product Managers are intimately familiar with the features and capabili...

the aim of this case report was to describe the clinical management of an unusual dens invaginatus type 3. a case of dens invaginatus in a maxillary lateral incisor with a periapical lesion is reported. the patient presented with pain and localized swelling. despite the complex anatomy and diagnosis of dens invaginatus, non-surgical root canal treatment was performed successfully. key learning ...

background severe birth asphyxia (apgar < 7 at the 5th minute of birth) is recognized as a hearing loss risk factor by the joint committee on infant hearing (jcih). about half of the newborns with hearing loss do not indicate any sign and risk factor at birth. accordingly, the joint committee recommended performance of hearing screening test in 2000, especially for babies born with risk factors...

The question of how beaked whales are affected by naval sonar is important for the US Navy as information is required for accurate environmental assessments. A number of recent studies have reported behavioral responses of a small number of beaked whales to experimentally-presented sonar signals (Tyack et al., 2011; DeRuiter et al., 2013; Stimpert et al., 2014, Miller et al., 2015). These studi...

In complex human-machine systems, successful operations depend on an elaborate set of procedures provided to the human operator. These procedures specify a detailed step-by-step process for configuring the machine during normal, abnormal, and emergency situations. The adequacy of these procedures is vitally important for the safe and efficient operation of any complex system. In high-risk endea...