نتایج جستجو برای: aggregate

تعداد نتایج: 45166  

2009
Michel GRABISCH Jean-Luc MARICHAL Radko MESIAR

The two-parts state-of-art overview of aggregation theory summarizes the essential information concerning aggregation issues. Overview of aggregation properties is given, including the basic classification of aggregation functions. In this first part, the stress is put on means, i.e., averaging aggregation functions, both with fixed arity (n-ary means) and with open arity (extended means).

2007
Gianmarco I. P. Ottaviano

We develop a monopolistically competitive model of trade with firm heterogeneity in terms of productivity differences and endogenous differences in the 'toughness' of competition across markets in terms of the number and average productivity of competing firms. We analyze how these features vary across markets of different size that are not perfectly integrated through trade; we then study the ...

Journal: :iranian endodontic journal 0
hamid reza yavari department of endodontics, dental school, tabriz university of medical sciences, tabriz/ iranian center for endodontic research, tehran, iran shahriar shahi department of endodontics, dental school, tabriz university of medical sciences, tabriz/ iranian center for endodontic research, tehran, iran saeed rahimi department of endodontics, dental school, tabriz university of medical sciences, tabriz/ iranian center for endodontic research, tehran, iran sahar shakouie department of endodontics, dental school, tabriz university of medical sciences, tabriz/ iranian center for endodontic research, tehran, iran leila roshangar department of histology, medical school, tabriz university of medical sciences, tabriz, iran mehran mesgari abassi member of drug applied research center, tabriz university of medical sciences, tabriz, iran

introduction: the purpose of this study was to compare the histocompatibility of white (wmta) and gray (gmta) mineral trioxide aggregate mixed with 0.12% chlorhexidine (chx) and distilled water (dw) in subcutaneous connective tissues of rats. materials and methods: the freshly mixed wmta and gmta with chx or dw were inserted in polyethylene tubes and implanted into dorsal subcutaneous connectiv...

Journal: :iranian endodontic journal 0
zahed mohammadi department of endodontics, dental school, shahid sadoughi university of medical sciences, yazd, iran. [email protected] abbas ali khademi department of endodontics, dental school, esfahan university of medical sciences, esfahan, iran fatemeh ezoddini ardakani department of oral and maxillofacial radiology, dental school, shahid sadoughi university of medical sciences, yazd, iran

introduction: candida albicans (ca) is by far the most common yeast of oral infections, including endodontic infections. the aim of this study was to evaluate and compare the antifungal effect of white-colored mineral trioxide aggregate (wmta) and portland cement (pc) using a tube-dilution test. materials and methods: wmta and pc were tested freshly mixed and after 24 h. the experiment was perf...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
مهدی رنجپور mahdi ranjpoor dental school, shahid beheshti university of medical sciences, tehran–iran ([email protected])دانشکده دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی قاسم انصاری ghassem ansari dental school & dental research center, shahid beheshti university of medical sciences, tehran–iran.دانشکده دندانپزشکی و مرکز تحقیقات دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی.

background and aim: formocresol (fc) is yet, the most common medication used for pulpotomy of primary teeth. however, its potential hazards including toxicity, mutagenicity and even some degrees of carcinogenicity are the remaining sources of concern to clinicians. this investigation was aimed at comparing the clinical success level of mta (case) treated pulps of primary teeth to that of formoc...

Journal: :journal of dentistry, tehran university of medical sciences 0
h. neamatollahi a. tajik

statement of problem: pulpotomy is the most common pulp treatment of primary molars. formocresol pulpotomy has enjoyed long-term clinical use and success, but concerns over its toxicity and mutagenicity have prompted research into other pulpotomy techniques. purpose: the aim of the present study was to compare the relative success of formocresol, ferric sulfate and mta pulpotomy methods in prim...

2016
L. Pravin Kumar Ramesh Krishnan

Range-aggregate queries are to apply a certain aggregate function on all tuples within given query ranges. Existing approaches to range-aggregate queries are insufficient to quickly provide accurate results in big data environments. In this paper, we propose FastRAQ a fast approach to range-aggregate queries in big data environments. FastRAQ approach on the Linux platform, and evaluate its perf...

2001
Paolo Ciaccia Matteo Golfarelli Stefano Rizzi

Accurately estimating the cardinality of aggregate views is crucial for logical and physical design of data warehouses. While the warehouse is under development and data are not available yet, the approaches based on accessing data cannot be adopted. This paper proposes an approach to estimate the cardinality of views based on a-priori information derived from the application domain. We face th...

This study analyzes the effect of Aggregate Measurement of supportive policies on Urban Households’ Food Security Index in Iran by applying Auto Regressive Distributed Lag (ARDL) for the period 1982 – 2012. In order to achieve this goal, Aggregate Households’ Food Security Index (AHFSI), Aggregate Measurement of Support (AMS), Inflation Rate and virtual variables for the targeted subsidy law pe...

Journal: :Inf. Sci. 2011
Erich-Peter Klement Maddalena Manzi Radko Mesiar

Article history: Received 12 May 2010 Received in revised form 6 March 2011 Accepted 26 May 2011 Available online 7 June 2011

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