A major challenge in process improvement is to understand process innovation and improvement efficiency and use. How do we know that process innovations and improvements give organizational benefits? We need a mechanism for measuring. In this paper, we report from a longitudinal action research study at the telecom company Ericsson where a measurement mechanism was designed and successfully use...

Cost efficiency measures the cost of resource by output production. While conventional cost efficiency models set targets separately for each DMU, There are cases where the Central decision making is seeking the above targets, and at the same tries to obtain the target of Min cost efficiency for the total consumption. in this paper we consider that there is a centralized decision maker (DM). In...

Objective Polyethylenimine (PEI), a readily available synthetic polycation which has high transfection efficiency owing to its buffering capacity was introduced for transfection a few years ago. But it has been reported that PEI is cytotoxic in many cell lines. In this study, in order to enhance the transfection efficiency of 10 kDa PEI and reduce its toxicity, hydrophobic residues were grafte...

The author studies the optimization of measurement for n copies of pure states. The asymptotic efficiency of the optimal measurement is calculated in the large deviation sense.

This article deals with efficiency improvement and how to identify appropriate benchmarks for inefficient firms to imitate. We argue that the most relevant benchmark is the most similar efficient firm. Having interpreted similarity in terms of input endowments, the problem reduces to find the closest reference firm on the efficient subset of the isoquant. To such an end, we introduce the concep...

This paper compares three different models of efficiency measurement on the basis of multiple inputs and outputs. Various data envelopment models are compared with principle component analysis and with a naïve model that derives a single efficiency score for every unit by averaging all possible output-input ratios. The data set for this comparison consists of multiple, media-specific brand adve...

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objective polyethylenimine (pei), a readily available synthetic polycation which has high transfection efficiency owing to its buffering capacity was introduced for transfection a few years ago. but it has been reported that pei is cytotoxic in many cell lines. in this study, in order to enhance the transfection efficiency of 10 kda pei and reduce its toxicity, hydrophobic residues were grafted...