Trigonometric parallax observations made with the Hubble Space Telescope’s Fine Guidance Sensor #3 (HST FGS) of seven Hyades Cluster members in six fields of view have been analyzed along with their proper motions to determine the distance to the cluster. Knowledge of the Cluster’s convergent point and mean proper motion are critical to the derivation of the distance to the center of the cluste...

We consider the k most vital edges (nodes) and min edge (node) blocker versions of the 1-median and 1-center location problems. Given a weighted connected graph with distances on edges and weights on nodes, the k most vital edges (nodes) 1-median (respectively 1-center) problem consists of finding a subset of k edges (nodes) whose removal from the graph leads to an optimal solution for the 1-me...

Scientific reports should be orderly, clear, and unambiguous. Clarity is even more important for health technology assessments (HTAs), which aim at supplying reliable and up-to-date evidence on the effectiveness, safety, and cost of healthcare interventions. Increasingly assessments also provide information about the effects of technologies on organization of care, as well as relevant legal, so...

We construct a flexible (non immersed) suspension with a hexagonal equator in Euclidean 3-space and study its properties related to the Strong Bellows Conjecture which reads as follows: if an immersed polyhedron P in Euclidean 3-space is obtained from another immersed polyhedron Q by a continuous flex then P and Q are scissors congruent. §

Magnetotactic bacteria are present in fresh water and marine sediments of Fortaleza, Brazil, situated close to the geomagnetic equator. Both South-seeking and North-seeking bacteria are present in roughly equal numbers in the same samples. This observation is consistent with the hypothesis that the vertical component of the geomagnetic field selects the predominant polarity type among magnetota...

Introduction Developing a flexible and generic record and reuse mechanism for mixed reality experiences is a complex and challenging task. In this position paper we break the problem down into a number of sub-problems, expressed as requirements and associated technical approaches and challenges. In particular, we: • Identify requirements for a generic record and replay facility within the Equat...

The k-means is one of the most popular and widely used clustering algorithm, however, it is limited to only numeric data. The k-prototypes algorithm is one of the famous algorithms for dealing with both numeric and categorical data. However, there have been no studies to accelerate k-prototypes algorithm. In this paper, we propose a new fast k-prototypes algorithm that gives the same answer as ...

About 85% of all U.S. universities and colleges offer distance education courses, up from 62% since 1998 (National Governors’ Association, 2001). Also since 1998, distance education enrollments in credit-bearing courses have more than doubled, from about 1,364,000 to over 2,870,000 in 2001. (National Center for Education Statistics, 1997; 2003). By 2004, it is expected that distance learners wi...

Vertex k-center problem introduces the notion to recognize k locations as centers in a given network of n connected nodes holding the condition of triangle inequality. This paper presents an efficient algorithm that provides a better solution for vertex k-center problem. Anticipatory Bound Selection Procedure (ABSP) is deployed to find the initial threshold distance (or radius) and eradicating ...