This paper proposes an alternative approach for efficiency analysis when a set of DMUs uses interval scale variables in the productive process. To test the influence of these variables, we present a general approach of deriving DEA models to deal with the variables. We investigate a number of performance measures with unrestricted-in-sign interval and/or interval scale variables.

The use of amalgamation process to recover gold from mined ores by the small-scale gold miners in the Philippines and other developing countries produces and dispose of untreated wastewater to the receiving water bodies. In this study, a field-scale filter bed system was constructed to treat heavy metal metal-laden wastewater collected from small-scale gold mining site in Paracale, Camarines No...

Homogeneous turbulence and in scale-by-scale equilibrium, played a leading role the research of second half twentieth century, Jack Herring was an important contributor to these developments. The activity which has followed developments over past ten fifteen years concerns turbulence, is out equilibrium either because it non-stationary or non-homogeneous both. This paper short review recent pro...

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the available experiments and reports of executed projects in iranian research centers and universities show that the ability of know-how development of chemical and petrochemical synthesis as well as their required catalyst is existed in laboratory scale. although, know-how development in larger scale is possible, too but no certain scientific and classified method has been explained which is ...

In this paper we describe a novel integration of Hierarchy Theory and Linear Scale-Space for automatically visualizing, and modeling dominant landscape structures at multiple scales. Specifically, we describe 3D methods for modelling and visualizing landscape scale-domains by using scale-space events as critical domain thresholds. This novel approach provides the capacity to automatically defin...

Understanding scale is fundamental in science education, but scale comprehension is difficult. One reason difficulties may arise is a disconnect between the linear scale of magnitude and how scale information is cognitively represented. An intervention was designed to foster a linear representation of magnitude, based on the theory that people represent magnitude information in a hierarchically...

A matched samples design was employed to compare WAIS and WAIS-R IQ in UK subjects. The WAIS yielded significantly higher mean Full Scale, Verbal and Performance IQs. The mean differences were 7.5, 6.4 and 7.9 IQ points respectively. The WAIS and WAIS-R samples were broadly representative of the UK adult population in terms of age, sex and social class distribution, and therefore provide tentat...

DESCRIPTION. The Home & Community Social Behavior Scales (HCSBS) is a 64-item behavior rating scale that is completed by parents “and other home-based raters” of children and youth between ages 5 and 18. In contrast to the “highly clinical” nature of many child behavior rating instruments, the HCSBS is designed to emphasize “routine or commonly occurring social competencies and problems” (user’...