Maintaining rigor in research is critical; however, this need must be balanced by the necessity of conducting studies in populations where inherent barriers exist relative to key issues such as recruitment, attrition, sampling, sample size, assessment techniques, psychometric rigor, the identification of mediators and moderators and the practical relevance of the research question itself. Ultim...

To study behavioral or psychiatric phenotypes, multiple indices of the behavior or disorder are often collected that are thought to best reflect the phenotype. Combining these items into a single score (e.g. a sum score) is a simple and practical approach for modeling such data, but this simplicity can come at a cost in longitudinal studies, where the relevance of individual items often changes...

Industry is rapidly embracing distributed systems. Although there are many advantages to distribution, such systems are certainly more difficult to understand and thus more vulnerable to errors. Unfortunately, insufficient thought is being given to how to ensure the reliability of such systems. Whereas dynamic testing approaches provide increased confidence in the reliability of sequential syst...

Given a graph G, the NP-hard Maximum Planar Subgraph problem (MPS) asks for a planar subgraph of G with the maximum number of edges. There are several heuristic, approximative, and exact algorithms to tackle the problem, but—to the best of our knowledge— they have never been compared competitively in practice. We report on an exploratory study on the relative merits of the diverse approaches, f...

Byzantine Fault Tolerant (BFT) systems are considered to be state of the art with regards to providing reliability in distributed systems. Despite over a decade of research, however, BFT systems are rarely used in practice. In this paper, we describe our experience, from an application developer’s perspective, trying to leverage the publicly available, highlystudied and extended “PBFT” middlewa...

We recommend a novel method for multiple-input multiple-output (MIMO) radar with colocated antennas which we call phased-MIMO radar. The core of the projected method is to panel the broadcast array into a number of sub arrays that are permissible to overlie. Then, each subarray is worn to articulately put on the air a waveform which is orthogonal to the waveforms transmitted by additional subar...

Array sections describe the set of array elements that are either read or written by program statements. An important aspect in such analyses is to formulate a method for describing these sections. Various factors influence the choice of a particular method: factors such as precision, efficiency and practicality. Precise analysis can render high quality solutions and is therefore desirable. But...

In the digital era, rapid development of science and technology provides convenience in teaching learning; media is needed to provide practicality supporting learning. Augmented Reality a practical solution as learning medium visualizing material when process, especially physics, requires more visualization for concepts displayed. Objective: This research analyzes augmented reality physics Meth...