2 The single-particle retarded Green function and its spectral function 4 2.1 Retarded, advanced, “greater”, and “lesser” single-particle Green functions . 4 2.2 The meaning of 〈· · ·〉 and the time dependence . . . . . . . . . . . . . . . . . 5 2.3 Some other forms of the Green functions . . . . . . . . . . . . . . . . . . . . 6 2.3.1 Transformations to other bases . . . . . . . . . . . . . . ....

2 The single-particle retarded Green function and its spectral function 4 2.1 Retarded, advanced, “greater”, and “lesser” single-particle Green functions . 4 2.2 The meaning of 〈· · ·〉 and the time dependence . . . . . . . . . . . . . . . . . 5 2.3 Some other forms of the Green functions . . . . . . . . . . . . . . . . . . . . 6 2.3.1 Transformations to other bases . . . . . . . . . . . . . . ....

2 The single-particle retarded Green function and its spectral function 4 2.1 Retarded, advanced, “greater”, and “lesser” single-particle Green functions . 4 2.2 The meaning of 〈· · ·〉 and the time dependence . . . . . . . . . . . . . . . . . 5 2.3 Some other forms of the Green functions . . . . . . . . . . . . . . . . . . . . 6 2.3.1 Transformations to other bases . . . . . . . . . . . . . . ....

In contrast to pulmonary, cardiovascular, renal and neurological function, liver function is not easily monitored in the critically ill. Traditionally, the degree of liver dysfunction is assessed by using biochemical tests transaminases, bilirubin, albumin and prothrombin time. These are static tests, they only assess the presence of hepatobiliary injury and tend to respond late to damage. More...

In this paper, to cope with the stochastic dynamic (or multi-period) problem, two new quadratic assignment-based mathematical models corresponding to the dynamic and static approaches are developed. The product demands are presumed to be dependent uncertain variables with normal distribution having known expectation, variance, and covariance that change from one period to the next one, randomly...

background: by decreasing oxidative stress and whereby decreasing insulin resistance, it may be possible to decrease complications of diabetes mellitus (dm). green tea and sour tea contain phytochemicals which have anti-oxidative function. the aim of this study is to compare the effect of sour and green tea consumption on insulin resistance and oxidative stress in dm. methods: this study is a r...

Background & objectives: Malachite green color has been extensively used in aquaculture industry around the world. The drainage of colored wastewater containing malachite green to aquatic ecosystems has created very serious risks for human health and the environment. The purpose of this study was to investigate the removal of green malachite from aqueous solutions using photocatalysis of titani...

Abstract This paper analyzes the implications of investors’ short-term oriented asset holding and portfolio decisions (or short-termism), its consequences on green investments. We adopt a dynamic model, which contrary to conventional static mean-variance models, allows us study optimal portfolios for different decision horizons. Our baseline model contains two assets, one with fluctuating retur...

The aim of Green Cloud Computing is to achieve a balance between resource consumption and quality of service. In order to achieve this objective and to maintain the flexibility of the Cloud, dynamic provisioning and allocation strategies are needed to manage the internal settings of the Cloud, addressing oscillatory peaks of workload. In this context, we propose strategies to optimize the use o...