This paper describes a novel design activity that was used to gather insights into security requirements for a mobile application for children. The general aim of the study was to understand how to design for security in an application for children rather than to specifically generate design solutions. To gather this information, a novel design activity, referred to here as Participatory Analog...

Recent results by Krähmer [Israel J. Math. 189 (2012), 237–266] on smoothness of Hopf–Galois extensions and by Liu [arXiv:1304.7117] on smoothness of generalized Weyl algebras are used to prove that the coordinate algebras of the noncommutative pillow orbifold [Internat. J. Math. 2 (1991), 139–166], quantum teardrops O(WPq(1, l)) [Comm. Math. Phys. 316 (2012), 151–170], quantum lens spaces O(Lq...

Improvements upon the Birkbeck bedload sampler (Reid et al., 1980) were implemented in the North Fork of Caspar Creek, a gravel-bedded stream draining 383 ha in northern coastal California. Bedload sediment falls through a slotted plate covering a .125-m steel box set within a formed concrete pit in the streambed. In the original Birkbeck design, a water-filled pressure pillow beneath the box r...

The combination of higher lead-free process temperatures, smaller print deposits, and temperature restraints on electrical components has created difficult challenges in optimizing the reflow process. Not only are the electronic components and the PWB at risk, but the ability to achieve a robust solder joint becomes difficult, especially if the PCB is thermally massive. In addition, the constan...

OBJECTIVE To evaluate the effect of caffeine on balance control of hemiparetic stroke patients, we investigated the difference in postural stability before and after drinking coffee by observing changes in stability index (SI) from posturography. METHODS Thirty patients with history of stroke and 15 age-matched healthy subjects participated in this study. Effect of group factor (of the contro...

A 37-year-old woman presented to the emergency department with 12 hours of gradually worsening left lower quadrant pain with anorexia, vomiting, and diarrhea. She also reported intermittent fever and chills. On exam, her initial vital signs were 102/68, pulse of 102, respirations 18, temperature of 97.5° F. She was mildly anxious secondary to pain. Abdominal exam revealed a soft abdomen with le...

[1] Volcanic mound fields identified on SeaMARC II and HMR1 12 kHz side-scan data from the southern East Pacific Rise (SEPR) occur near overlapping spreading centers (OSCs) and migration traces of OSCs. The volcanic mound fields appear as a distinctive hummocky seafloor fabric due to side-scan backscatter reflections from clusters of moundshaped reflectors. The lack of growth of the mound field...

BACKGROUND The sniffing position (neck flexion by head elevation and head extension) is commonly used for insertion of a laryngeal mask airway. However, the appropriate degrees of head elevation and head extension are unclear. In the present study, the success rate of ProSeal™ laryngeal mask airway (LMA ProSeal) insertion using two degrees of head elevation was evaluated. METHODS This prospec...

BACKGROUND Proximal femur fractures are one of the most common injuries necessitating operative treatment. The aim of this prospective study was to evaluate and compare the possible effects of the preoperative application of a skin traction device, with or without weights, on pain relief in patients with acute proximal femur fracture. MATERIALS AND METHODS This study included 108 pre-operativ...