Vanderbilt University

About: Vanderbilt University is a education organization based out in Nashville, Tennessee, United States. It is known for research contribution in the topics: Population & Cancer. The organization has 45066 authors who have published 106528 publications receiving 5435039 citations. The organization is also known as: Vandy.

Calculating the sample size required for developing a clinical prediction model.

Abstract: Clinical prediction models aim to predict outcomes in individuals, to inform diagnosis or prognosis in healthcare. Hundreds of prediction models are published in the medical literature each year, yet many are developed using a dataset that is too small for the total number of participants or outcome events. This leads to inaccurate predictions and consequently incorrect healthcare decisions for some individuals. In this article, the authors provide guidance on how to calculate the sample size required to develop a clinical prediction model.

Sensor network-based countersniper system

Abstract: An ad-hoc wireless sensor network-based system is presented that detects and accurately locates shooters even in urban environments. The system consists of a large number of cheap sensors communicating through an ad-hoc wireless network, thus it is capable of tolerating multiple sensor failures, provides good coverage and high accuracy, and is capable of overcoming multipath effects. The performance of the proposed system is superior to that of centralized countersniper systems in such challenging environment as dense urban terrain. In this paper, in addition to the overall system architecture, the acoustic signal detection, the most important middleware services and the unique sensor fusion algorithm are also presented. The system performance is analyzed using real measurement data obtained at a US Army MOUT (Military Operations in Urban Terrain) facility.

Recent developments and current controversies in the sociology of religion

Abstract: The sociology of religion is experiencing a period of substantial organizational and intellectual growth. Recent theoretical and empirical papers on the sociology of religion appearing in top journals in sociology have generated both interest and controversy. We begin with a selective overview of research on religious beliefs and commitments. Second, we investigate the influence of religion on politics, the family, health and well-being, and on free space and social capital. Finally, we review rational choice theories in the sociology of religion and the controversies surrounding applications of these perspectives.

Newborn Screening: Toward a Uniform Screening Panel and System—Executive Summary

Abstract: The Maternal and Child Health Bureau commissioned the American College of Medical Genetics to outline a process of standardization of outcomes and guidelines for state newborn screening programs and to define responsibilities for collecting and evaluating outcome data, including a recommended uniform panel of conditions to include in state newborn screening programs. The expert panel identified 29 conditions for which screening should be mandated. An additional 25 conditions were identified because they are part of the differential diagnosis of a condition in the core panel, they are clinically significant and revealed with screening technology but lack an efficacious treatment, or they represent incidental findings for which there is potential clinical significance. The process of identification is described, and recommendations are provided.

Estimation of a non-neutral stochastic frontier production function

Abstract: This article proposed a hybrid of a stochastic frontier regression The proposed model and estimation differ from the conventional model of Aigner, Lovell, and Schmidt The model combines a stochastic frontier regression and a truncated regression to estimate the production frontier with non-neutral shifting of the average production function The truncated regression identifies the sources of efficiency The article presents empirical evidence of non-neutral effects of the firm's characteristics—the age of the firms, the export ratio, and the R&D expenditure—on the frontier production function and production efficiency in the Taiwan's electronics industry