Missing data are likely to be a bigger problem for the behavioral scientist as the data gathering techniques continue to improve. In addition, as “Big Data” is encountered in a variety of different fields, such as medicine or management, analysis of parts of the data sets rather than the entire data set may be required for computational speed. This article used an artificial data design to test the adequacy of the multidimensional scaling procedure EXSCAL (EXtended Individual Differences SCALing) under the presence of varying amounts of missing data and error level in the data. Some performance measures were developed to assess how well the program recovers the stimulus coordinates, subject weights, and stimulus specificities. The measures were generally very good and suggest that EXSCAL handles missing data very well. Other factors such as presence of specificities, and amount of error were determined to be a greater influence on the performance of the program than the presence of missing data.

Today, industries high developments and technology increasing progress cause some problems like air pollution, job side effects and occupational diseases which force us to implement a HSE-MS management system in different projects. Implementation of this system is the need to spend money and time, for this reason, some managers are hesitating to implement it completely.\nThis paper seeks to measure the profitability of investment in HSE-MS system using the internal rate of return (IRR) method as one of the most attractive economic evaluation index. To this end, we should predict the values of project cash flow stream in terms of different time periods. So the calculation of these values as crisp numbers is so risky and the accuracy of final results will be ambiguous. Hence, this paper define the values of cash flow streams as fuzzy numbers and then calculate the profitability of the HSE-MS system implementation project using the IRR measure under fuzzy environment. \nThe mean value of IRR was equal to 22% by using the FIRR. Also considering the point that the minimum value of IRR based on the FIRR was 14% and 18%, respectively, and the fact that, these values are greater than the market rate (7%), the HSE-MS system implementation is an economic and advisable project.\nThe economic evaluation of the HSE-MS system is performed using the greater possibility index. Also a power plant is investigated as a case study. Based on the obtained results, the HSE-MS system implementation is strictly advisable because of its benefits.

The paper presents a case study to predict the survival rate of oral cancer patients. Two predictive models, Linear Regression (LR), which is a contemporary statistical model and Multilayer Perceptron (MLP), which is an artificial neural network model, are designed and developed. The data of 1025 patients who visited a tertiary care centre during June 2004 and June 2009 is collected in non-randomized way and is used to build models. Analytical comparison of the performance of both the model is carried out. The experimental result shows that the classification accuracy of MLP model for training data is 70.05% and validation data is 69.76%, whereas classification accuracy of LR model for training data is 60.10% and validation data is 61.27%. After comparing on various evaluation criteria , it is concluded that the MLP model is a better model for predicting the survival rate of oral cancer patients, in comparison to LR model.

Aluminum zinc oxide (AZO), as one of the most promising transparent conducting oxide (TCO) material, has now been widely used in thin film solar cells. In this study the optimization process of the DC magnetron sputtered AZO films was carried out at room temperature by studying it’s structural, optical, electrical and morphological properties at different deposition times (5, 10, 15, 20 and 25 min’s) for its use as a front contact for the cadmium telluride (CdTe) based thin film solar cell. The structural study suggests that the preferred orientation of grains along (002) plane having hexagonal structure of the grains. The optical and electrical properties suggest that the films show an average transmission of 70% and a resistivity of the order of 10-4Ωcm. The morphology analysis suggests the formation of packed grains having a homogeneous surface.

The purpose of the article is to highlight the importance of performance measurement for local\npublic institutions in Romania based on a sociological survey, involving a total of 168 local\ninstitutions from the North-West of Romania (survey covering the main local government within\nsix counties from north-west of Romania). The survey revealed several aspects regarding the low\nusage level of performance measurement in these institutions, a limited interest manifestation by the\nkey stakeholders (we impute leaders of public institutions from different hierarchical levels and \nexecutive civil servants). Finally performance measurement is still not regarded as a useful\nmanagerial tool in Romanian local public institutions, although performance measurement is a great\nopportunity for resources allocation, budget construction or motivating employees; local\ngovernment still does not take into account these aspects. Reasons for these aspects, practical\ncontribution of the research and future perspectives are also discussed.

ABSTRACT\n\n. Gastroesophageal reflux (GER) is the passage of gastric contents into the esophagus, and GERD is defined as symptoms or complications of GER. \nThe most common extraoral manifestation of GERD is tooth surface loss, a progressive, irreversible loss of dental hard tissues due to a chemical process not involving bacteria. Dentists are often the first health care personnel to diagnose dental erosion in patients with gastroesophageal reflux disease (GERD)\n Permanent incisors and first permanent molars of 210 patients having age 06 years and above were examined. Patients were asked to fill the questionnaire containing questions about previous history of gatroesophageal reflex disease. Community periodontal index & treatment need (CPITN) probe was run over labial, occlusal and lingual surfaces of incisors & molars, to check for loss of enamel surface. Out of 210 patients examined, 39 were (18.57%) having GERD. Out of 39 patients only 1(2.56%) patient has less than one third of the enamel surface involved. 13(33.3%) patients have teeth between one third and two third of the surface involved. 14(35.9%) patients have more than two third surface involved and in 6(15.4%) patients, assessment was not possible.\nGatroesophageal reflex disease (GERD) is an increasingly common and potentially serious condition, with various extraesophageal adverse health effects that dental practitioners should be aware of. Clinicians should also be aware of the predisposing risk factors for GERD and its classical esophageal and extraesophageal symptoms and signs. \nThis study declared the GERD patients are at higher risk of developing dental erosion compared to the healthy individuals in a sample of Pakistani population.