In large-scale immersive virtual reality (VR) environments, such as a CAVE, one of the most common problems is tracking the position of the user’s head while he or she is immersed in this environment to reflect perspective changes in the synthetic stereoscopic images. In this paper, the authors describe the theoretical foundations and engineering approach adopted in the development of an infrar...

OBJECTIVE To investigate the impact of obstructive sleep apnea syndrome (OSAS) on night-time secretion of brain natriuretic peptide (BNP) and antidiuretic hormone (ADH) in older men with nocturia accompanied by nocturnal polyuria. MATERIALS AND METHODS One hundred six men with nocturia aged ≥ 60 years underwent full-night polysomnography to determine whether they had OSAS. Blood count, standa...

Acknowledgements: This research was supported by a collaborative NSF grant #2015-0285-00. In within-study comparison (WSC) designs, treatment effects from a non-experimental design, such as an observational study or a regression-discontinuity design, are compared to results obtained from a well-designed randomized control trial (RCT) with the same target population. The goal of the WSC is to as...

Navier-Stokes-based methods have been used in computer graphics to simulate liquids, especially water. These physically based methods are computationally intensive, and require rendering the water surface at each step of the simulation process. The rendering of water surfaces requires knowing which 3D grid cells are crossed by the water’s surface, that is, tracking the surface across the cells ...

Object occlusion is a major handicap for efficient interaction with 3D virtual environments. The wellknown World in Miniature (WIM) metaphor partially solves this problem by providing an additional dynamic viewpoint through a hand-held miniature copy of the scene. However, letting the miniature show a replica of the whole scene makes the WIM metaphor suitable for only relatively simple scenes d...

Background: Oxytocin (OT) is a neuropeptide shown to attenuate inflammatory responses in both humans and animals, but the specific mechanism underlying these actions has not yet been identified. Preliminary research in humans suggests that monocytes (MOs) and macrophages (MPs) could be the target of anti-inflammatory actions of OT. Here, we present a series of ex vivo experiments in human MOs a...

A queuing model with limited waiting room (buffer), batch (burst)Poisson arrivals, and a synchronous single server (transmittion channel)with constant service time (constant transmission rate) is studied. Usingaverage burst length and traffic intensity as parameters, the relationshipsamong buffer size, overflow probabilities, and an approximation to theexpected queuing d...

Introduction and Motivation We present a new user-friendly interface for surface design. The goal is to overcome limitations associated with traditional methods: their dependence on freehand controling and their rigid mathematical structures. Our solution is motivated by the drafter’s tool called French curves, which are used as templates for tracing curves. Digital French curves are, for examp...

thought: categorization, problem-solving, andinduction. In Advances in the psychology of humanintelligence (ed. R. J. Sternberg), pp. 189–223. Hillsdale,NJ: Lawrence Erlbaum Associates. Niedenthal, P. M., Barsalou, L. W., Winkielman, P., Krauth-Gruber, S. & Ric, F. 2005 Embodiment in attitudes, socialperception, and emotion. Pers. Soc. Psychol. Rev. 9,184–211. (doi:10.12...

The concept of unreliable failure detector was introduced by Chandra and Toueg as a mechanism that provides information about process failures. This mechanism has been used to solve several agreement problems, like Consensus. In this paper, algorithms that implement failure detectors in partially synchronous systems are presented. First two simple algorithms of the weakest class to solve Consen...