Basma ezzat

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Developing an Input Oriented Data Envelopment Analysis Model with Fuzzy Uncertainty in Variables

Creative Business and Social Innovations for a Sustainable Future, 2019

Data Envelopment Analysis (DEA) technique is considered one of the most appropriate tool for asse... more Data Envelopment Analysis (DEA) technique is considered one of the most appropriate tool for assessing performance through calculating the technical efficiencies of a collection of related comparable organizations in transforming inputs into outputs. The conventional DEA methods require accurate measurement of both the inputs and outputs. However, the observed values of the input and output data in real-world problems are sometimes imprecise or vague, i.e. fuzzy. Imprecise evaluations may be the result of unquantifiable, incomplete and non-obtainable information. From the literature of fuzzy DEA applications, most if not all developed models considered all input and output variables as fuzzy, through adopting either the traditional DEA model or the output version of the model, and solved using the α-level approach. Accordingly, the main aim of this paper is to develop a Fuzzy Input Oriented DEA Model that considers a mix of both fuzzy and deterministic output and/or input variables ...

Oral health knowledge of periodontal disease among final year non-dental students of IIUM Kuantan Campus

IIUM Medical Journal Malaysia, 2016

Introduction: To determine the levels of oral health knowledge of periodontal disease and its det... more Introduction: To determine the levels of oral health knowledge of periodontal disease and its determinants among final year non-dental students of IIUM Kuantan Campus. Methods: A cross-sectional study was conducted among 284 final year non-dental students from five different kulliyyah using a validated structured questionnaire. The questionnaire consisted of items to assess participants’ demographic and socioeconomic variables, dental health education, periodontal disease knowledge, and oral hygiene practice. The relationship between levels of knowledge with the socioeconomic background, oral hygiene practice, and dental health education were analyzed using Chi-square Test and One-way ANOVA. Statistical analysis was based on probability values of less than 0.05 (p<0.05). Results: 70.4% (200/284) of the participants were female and 29.6% (84/284) were male with mean age 23.5. Limited knowledge was seen more in non-medical students than medical students significantly (p<0.05) in...

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