Introduction Patent statistics have frequently been used as both technological and economic indicators, however, in order to fully utilize patent data in economic analyses, we must link patents to economic activity at a level of industry or product. Many previous pieces of research showed the effectiveness of patents citation index (PCI), containing annual citation information, on economic indi...

The Pickands estimator for the extreme value index is generalized in a way that includes all of its previously known variants. A detailed study of the asymptotic behavior of the estimators in the family serves to determine its optimally performing members. These are given by simple, explicit formulas, have the same asymptotic variance as the maximum likelihood estimator in the generalized Paret...

OBJECTIVE To evaluate the prognostic value of left atrial volume index (LAVi) in the clinical course of hemodialysis (HD) patients, compared with previously established echocardiographic and clinical parameters. METHODS Echocardiograms were obtained from 118 hemodialysis patients, who were then followed for 19 +/- 8 months. Study endpoint was a composite of all-cause mortality and nonfatal ca...

We describe a new no-reference blur index for still images based on a singular value curve (SVC). The algorithm is composed of two steps. First, the singular value decomposition is performed on the image to be blur-assessed. Then an image blur index is constructed from the singular value curve. Experimental results obtained on four simulated blur databases and on the Real Blur Image Database sh...

The myocardial performance index represents an easy and reproducible parameter of both systolic and diastolic left ventricular function for the risk stratification of patients following acute myocardial infarction.

In numerous motor tasks, muscles around a joint act coactively to generate opposite torques. A variety of indexes based on electromyography signals have been presented in the literature to quantify muscle coactivation. However, it is not known how to estimate it reliably using such indexes. The goal of this study was to test the reliability of the estimation of muscle coactivation using electro...

in this study, the satisfaction index of new product attribute in terms of development strategy, which includes a number of options for development using kano questionnaire, in the automotive industry was calculated, and according to the relationship between satisfaction and loyalty, instead of loyalty index, we was used satisfaction kano index . then using customer purchase records data within...

We construct a catch per unit effort (CPUE) index for minke whales caught in the E-areas of north-eastern Atlantic, adjusted for boat efficiency and spatial effects. The index is interpreted as an unsmoothed relative index of abundance, also including variation in catch conditions due to weather, migration and local clustering of minke whales. Norwegian minke whaling was interrupted from 1984 t...

OBJECTIVE To find out the predictive value of the ΣΔST/ΔHR index for restenosis after percutaneous coronary intervention (PCI). METHOD Subjects of this research were patients who participated in a cardiac rehabilitation (CR) program as six to eight weeks of a hospital-based program after receiving PCI to treat acute coronary syndrome (ACS). The patients received coronary angiography (CAG) at ...

The Morisita index is widely used to evaluate the spatial distribution patterns of species in a native forest. Thus, by analysing the spatial behaviour of individuals in some special cases, this study obtained and then discussed the critical values for the application of the Morisita index. In the aggregate classification, importance was given to the way the equation was used and on the meaning...