To insure a proper and meaningful productivity assessment of DMUs with different production technologies, this article develops a difference-based profit metafrontier Luenberger productivity indicator. Adopting the proposed model, we empirically measure the profit inefficiency and examine the...

The overuse of norfloxacin (NOR) has attracted wide attention because of the persistence and bio-accumulate in ecosystems and the negative impacts on human health. To solve the environmental issue, BiOI/TiO 2 p-n heterojunctions were developed and decorated with a porous metal organic framework...

In urban China, gender gaps in employment and earnings have steadily increased since the 1990s. Such gender gaps are important because pension rights and amounts are based on labor force participation and wages. However, as this study demonstrates, despite the rise in gender differences in the...

To insure a proper and meaningful productivity assessment of DMUs with different production technologies, this article develops a difference-based profit metafrontier Luenberger productivity indicator. Adopting the proposed model, we empirically measure the profit inefficiency and examine the...

This research develops a new group-based profit difference model for comparing profit performance at the group level with heterogeneous production technology and currencies. The proposed model can fully measure component effects that contribute to cross-group profit variation and also explicitly...

BackgroundAs a crucial component of solar radiation, the association between exposure to ultraviolet (UV) radiation and acne remains unclear.ObjectivesTo investigate the association of previous exposure to ultraviolet radiation at different wavelengths or doses with acne in college...

Herein, MOF-derived magnetic CoFe2O4 with oxygen vacancy was successfully synthesized to activate peroxymonosulfate for the effective degradation of emerging organic contaminants. The introduction of oxygen vacancy not only increased the specific surface area of CoFe2O4, but also reduce the...

This paper summarizes studies of carbon (C) mitigation potential and costs of about 40 forestry options in seven developing countries. Each study uses the same methodological approach - Comprehensive Mitigation Assessment Process (COMAP) - to estimate the above parameters between 2000 and 2030....

In this study multi-fidelity surrogate modelling for combining data sets of wind tunnel experiments and computations is examined, dealing with different types of errors. Co- kriging regression is constructed with the low-fidelity sample data of the computations and the high-fidelity data of the...

The financial crises of the 1990s triggered many changes to the design of the international financial system. We use the formulation of the new Basle capital accord for banks (B-II) to illustrate that, while much affected, developing countries have had very little influence on this so-called new...