The main goals of this paper are to provide formal characterizations of comovement that are useful empirically in health economics applications and to demonstrate the utility of some of these measures via applications to volume-outcome question using data from the 2005 Nationwide Inpatient Sample. Specifically, the paper focuses on the concepts of quadrant dependence and association and their o...

This study explores the influence of partner-specific absorptive capacity as a self-reinforcing mechanism in the context of the theory of path dependence. For this purpose, theoretical foundations of path dependence and absorptive capacity are reviewed. Following, a path model of partner-specific absorptive capacity for business-to-business relationships is developed. While this paper concentra...

with an occurrence of 7%, appendicitis is one of the most common abdominal emergencies requiring surgery. since the variation in positions and length of the appendix may produce varying symptoms and signs which mimic other diseases, having knowledge of the variations in the position of the appendix is of significant importance. here, we present a 77-year-old man with acute appendicitis presenti...

OBJECTIVE To identify key factors for predicting positive cone margin and appropriate cone length. METHODS We retrospectively reviewed the margin status of patients who received conization with high grade cervical intraepithelial neoplasia, along with other factors such as patient age, parity, preoperative cytology, size of disease, type of transformation zone, and cone length from patient re...

The aim of this paper is to investigate results on almost sure convergence weighted sums coordinatewise pairwise negatively quadrant dependent random variables taking values in Hilbert spaces. As an application, the degenerate von Mises-statistics investigated.
 Keywords: Negative dependence, spaces, Weighted sums, Strong laws large numbers. 

BACKGROUND The upper outer quadrant (UOQ) of the breast is the most frequent site for incidence of breast cancer, but the reported disproportionate incidence in this quadrant appears to rise with year of publication. MATERIALS AND METHODS In order to determine whether this increasing incidence in the UOQ is an artifact of different study populations or is chronological, data have been analyse...

In this article, we described the equations of motion a rigid solid by matrix formulation. The matrices contained in our movement description are homogeneous to same unit. Inertial characteristics met 4x4 positive definite symmetric called "tensor generalized Poinsot." This consists 3x3 "inertia tensor Poinsot", coordinates center mass multiplied total body and body. formulated as gender skew m...

Dependence Measures in Bivariate Gamma Frailty Models Bivariate duration data frequently arise in economics, biostatistics and other areas. In “bivariate frailty models”, dependence between the frailties (i.e., unobserved determinants) induces dependence between the durations. Using notions of quadrant dependence, we study restrictions that this imposes on the implied dependence of the duration...

The angle property of positive real (rational) functionsZ(S), namely, that (arg S/ 2 / arg Z(S) 1 in the right half of thes-plane, can be demonstrated very simply by an examination of theimaginary parts of the functions In (s/Z(s)) and In (sZ(s)), i.e.,arg ST arg Z(S). In particular, on a contour enclosing the entire first Manuscript received June 30. 1972; revised August IO: 19...