Data Analysis

... history can incor-porate information on how the risk or hazard of the event varies by age ... individ-uals subjected to right-hand censoring-those in-dividuals who do not experience the event ... Because the onset of sexual activity and drug use were recorded in the NLSY as having ...

Featured in Reuters-USE_THIS "Family lifestyle equals genes in obesity risk" December 10, 2008 The Intergenerational Correlation in Weight: How Genetic Resemblance Reveals the Social Role of Families Molly A. Martin "What we do as a family -- our family lifestyles -- matters ...

This study derives a new interpretation for Fuzzy Kohonen Neural Network in parameter m. Derivation of new algorithm is accomplished by adaptive m. The learning rate in each iteration is effected by updating m ascending or descending. This yields automatic control to distribution of learning rate in the neighborhood of all data nodes at each iteration. This experiment evaluates the

This study derives a new interpretation for Fuzzy Kohonen Neural Network in parameter m. Derivation of new algorithm is accomplished by adaptive m. The learning rate in each iteration is effected by updating m ascending or descending. This yields automatic control to distribution of learning rate in the neighborhood of all data nodes at each iteration. This experiment evaluates the

Seismic data analysis of the Qasbat-Tadla Basin allows the deciphering of the main tectonic and sedimentary events that characterised the Hercynian orogen and its role in the basin's structural development. The global tectono-sedimentary framework involves structural evolution of an orogenic foreland basin and was the source of rising geotherms in an epizonal metamorphic environment. The complementary effects of these parameters

We aimed at identifying a suitable data analysis approach to investigate potential patterns in the current medical coding in obstetrics and perinatal care. We processed the data reported for 2006 in DRG files from three Romanian university clinics of obstetrics-gynaecology and found substantial differences in the coding practices. Based on the evidence we found with a poor usage of the coding instruments, we concluded that using objective methods and quantifiable measures in analyzing the medical coding could help putting things into the right perspective and bring support for the need for formal education of medical record administrators and coders where such programmes do not exist, e.g. in Romania.

The demand for millimeter accuracy in Global Positioning System (GPS) applications (receiver and precise point positioning) has raised a considerable interest in studying second order ionospheric delays. Unlike first order, second order ionospheric delays are functions of both, the Total Electron Content (TEC), and the geomagnetic field along the integrated signal path between the transmitter (GPS) and the receiver. The standard method of computing second order ionospheric delays makes use of ionosphere (IRI-2007) and magnetic field models (IGRF-10). We propose a different approach in estimating second order ionospheric delays, based solely on dual frequency GPS raw ionospheric excess phase delays. Specifically, our goal is twofold: (1) compute TEC free from second order ionospheric errors and (2) calculate geomagnetic field values along the integrated signal path between a GPS transmitter and a receiver. We apply our method to near-real time observational data provided by the Const...

... John T. McDevitt, Stanton Ching, Melani Sullivan, and Royce W. Murray* Kenan Laboratories, University of North Carolina Chapel Hill, North Carolina 27599-3290 Received February 17, 1989 ... (3) (a) McDevitt, J. T.; Longmire, M.; Gollmar, R.; Jernigan, JC; Dalton, EF; McCarley ...