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The q-derivative and applications to q-Szasz Mirakyan operators

Aral, Ali; Gupta, Vijay (Springer, 2006)

By using the properties of the q-derivative, we show that q-Szasz Mirakyan operators are convex, if the function involved is convex, generalizing well-known results for q = 1. We also show that q-derivatives of these ...

q-generalizations of the Picard and Gauss-Weierstrass singular integrals

Aral, Ali; Gat, Sorin G. (Mathematical Soc Rep China, 2008)

Introducing a higher order modulus of smoothness based on q-integers, in this paper first we obtain Jackson-type estimates in approximation by Jackson-type generalizations of the q-Picard and q-Gauss-Weierstrass singular ...

q-Voronovskaya type theorems for q-Baskakov operators

Ulusoy, Gulsum; Acar, Tuncer (Wiley, 2016)

In the present paper, we prove quantitative q-Voronovskaya type theorems for q-Baskakov operators in terms of weighted modulus of continuity. We also present a new form of Voronovskaya theorem, that is, q-Gruss-Voronovskaya ...

QT interval and dispersion differences between normal and prehypertensive patients: effects of autonomic and left ventricular functional and structural changes

Dogru, Mehmet Tolga; Gueneri, Mahmut; Tireli, Emine; Sahin, Oemer; Celik, Turgay; Iyisoy, Atila (Aves Yayincilik, 2009)

Objective: We aimed to investigate the effects of autonomic and left ventricular functional and structural changes on QT interval and dispersion differences between normal and prehypertensive patients. Methods: A total of ...

Quality of curing in relation to different light sources by measuring hardness, degree of conversion and depth of cure

Zorba, Y. Orcun; Bayindir, Y. Z.; Turgut, H.; Yildiz, M. (Maney Publishing, 2009)

This study was to determine the quality of curing of second generation light emitting diode (LED-II) compared to a first generation LED (LED-I) and conventional halogen (quartz tungsten halogen) light curing unity by ...

Quality of Life and Bronchial Hyper-Responsiveness in Subjects With Bronchiectasis: Validation of the Seattle Obstructive Lung Disease Questionnaire in Bronchiectasis

Bulcun, Emel; Arslan, Mesut; Ekici, Aydanur; Ekici, Mehmet (Daedalus Enterprises Inc, 2015)

BACKGROUND: Bronchiectasis can adversely affect quality of life. However, the tests examining quality of life in bronchiectasis are not sufficient. We examined the validity of a measure designed for COPD, the Seattle ...

Quality of life and metabolic disorders in patients with obstructive sleep apnea

Bulcun, Emel; Ekici, Aydanur; Ekici, Mehmet (Canadian Soc Clinical Investigation, 2012)

Purpose: Quality of life (QoL) may be poor in patients with sleep apnea depending on multifactorial reasons. In this observational study, we examined the factors determining QoL in patients with obstructive sleep apnea ...

Quality of life and oral health impact profile in Turkish dental patients

Sonmez, Seda; Top, Mehmet (Elsevier Sci Ltd, 2016)

Background: OHRQoL, oral health impact assessment and QoL in oral health have become central to dental and oral health research. Researchers studying oral health problems have used OHRQoL as an outcome measure to determine ...

Quality of life and related variables in patients with ankylosing spondylitis

Bodur, Hatice; Ataman, Sebnem; Rezvani, Aylin; Bugdayci, Derya Soy; Cevik, Remzi; Birtane, Murat; Gunendi, Zafer (Springer, 2011)

To evaluate quality of life (QoL) and related variables in patients with ankylosing spondylitis (AS), a chronic inflammatory disease of the spine. Nine-hundred and sixty-two patients with AS from the Turkish League Against ...

Quality of Work Life and Burnout in Healthcare Workers in Turkey

Saygili, Meltem; Avci, Keziban; Sonmez, Seda (SAGE PUBLICATIONS INDIA PVT LTD, 2020)

Quality of work life (QWL) is important to healthcare organisations that aim to increase patient and employee satisfaction and produce quality healthcare services. The literature lacks research investigating the relationship ...

Quantative computerized tomography assessment of lung density as a predictor of postoperative pulmonary morbidity in patients with lung cancer

Kaplan, Tevfik; Atac, Gokce Kaan; Gunal, Nesimi; Kocer, Bulent; Alhan, Aslihan; Cubuk, Sezai; Han, Serdar (Ame Publ Co, 2015)

Background: The aim of this study was to evaluate the pulmonary reserve of the patients via preoperative quantitative computerized tomography (CT) and to determine if these preoperative quantitative measurements could ...

Quantitative analysis of colonization with real-time PCR to identify the role of Oxalobacter formigenes in calcium oxalate urolithiasis

Batislam, Ertan; Yilmaz, Erdal; Yuvanc, Ercan; Kisa, Ozgul; Kisa, Ucler (Springer, 2012)

The objective of the study was to quantitatively measure the number of Oxalobacter formigenes (O. formigenes) colonizations in the gastrointestinal tract in calcium oxalate-forming patients with real-time polymerase chain ...

Quantitative estimates for bivariate Stancu operators

Bascanbaz-Tunca, Gulen; Erencin, Aysegul; Olgun, Ali (Wiley, 2019)

In this paper, we introduce Voronovskaja-type and Gruss-Voronovskaja- type theorems in quantitative mean with the help of the usual modulus of continuity for bivariate Stancu operators, which are different from a tensor ...

Quantitative Estimates For Jain-Kantorovich Operators

Deniz, Emre (2016)

By using given arbitrary sequences,property that limn 1nn 0and limn 1 n 0, we give a Kantorovichtype generalization of Jain operator based on the a Poisson disrtibition. Fristlywe give the quantitative Voronovskaya type ...

A Quantitative Performance Evaluation Model Based On a Job Satisfaction-Performance Matrix and Application in a Manufacturing Company

Aktepe, Adnan; Ersoz, Suleyman (Univ Cincinnati Industrial Engineering, 2012)

In this study, we propose a performance management model based on employee performance evaluations. Employees are clustered into 4 different groups according to a job satisfaction-performance model and strategic plans are ...