scholarly journals Operational approach to open dynamics and quantifying initial correlations

2012 ◽  
Vol 2 (1) ◽  
Author(s):  
Kavan Modi
1983 ◽  
Vol 22 (02) ◽  
pp. 77-82 ◽  
Author(s):  
M. P. Mi ◽  
J. T. Kagawa ◽  
M. E. Earle

An operational approach to computerized record linkage has been developed based on the concept of probability of chance match in two groups of records brought together for comparison. Tolerance levels can be readily derived from these records for decision-making in accepting or rejecting a linked pair. This approach is especially suitable for iteration when linked pairs are removed in successive cycles. An application of linkage for death clearance of the 1942 resident population of 437,967 registered in Hawaii during a 38-year period from 1942 to 1979 is presented. The reliability of linkage and rate of failure were analyzed.


Author(s):  
Klaus Morawetz

The method of the equation of motion is used to derive the Martin–Schwinger hierarchy for the nonequilibrium Green’s functions. The formal closure of the hierarchy is reached by using the selfenergy which provides a recipe for how to construct selfenergies from approximations of the two-particle Green’s function. The Langreth–Wilkins rules for a diagrammatic technique are shown to be equivalent to the weakening of initial correlations. The quantum transport equations are derived in the general form of Kadanoff and Baym equations. The information contained in the Green’s function is discussed. In equilibrium this leads to the Matsubara diagrammatic technique.


Land ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 797
Author(s):  
Malcolm Childress ◽  
Selina Carter ◽  
Edgard Barki

This paper aims to analyze the financial and operational approach to land regularization and financing used in Brazil by an innovative private social enterprise in order to demonstrate that the approach widens the concept fit-for-purpose land regularization to include fit-for-purpose land financing, with relevance for wider efforts in informal settlement regularization and upgrading. In this approach, the enterprise acts as a coordinator and broker to organize the residents of informal settlements to regularize their settlements by negotiating buyouts of the underlying private owners at discounted values, handling titling and registration of the occupants, and coordinating with municipal governments to provide infrastructure. The analysis of parcel-level repayment and price data provides evidence of the sustainability of the business model and increase of property values of the regularized parcels. The results presented from the enterprise’s own repayment data demonstrate that under (non-pandemic) historical conditions residents are largely able to pay an affordable monthly payment over 7–10 years to the enterprise for the service to purchase the plots and maintain the enterprise. In operation since 2001, the enterprise has regularized over 20,000 parcels in more than 30 settlements, primarily in the cities of Sao Paolo and Curitiba in Brazil. The approach suggests that it could be widely replicable and add to the set of options for regularizing informal settlements, especially when purchase of private land is required.


1991 ◽  
Vol 173 (6) ◽  
pp. 1305-1310 ◽  
Author(s):  
M Gadina ◽  
R Bertini ◽  
M Mengozzi ◽  
M Zandalasini ◽  
A Mantovani ◽  
...  

The present study was designed to define the potential of chlorpromazine (CPZ) as a protective agent against lipopolysaccharide (LPS) toxicity in comparison with glucocorticoids, and to obtain initial correlations with its effects on the levels of tumor necrosis factor (TNF), a pivotal mediator of endotoxic shock. It was found that CPZ protects mice, normal or adrenalectomized, and guinea pigs against lethality of LPS, and inhibited TNF serum levels, like dexamethasone (DEX), a well-known inhibitor of TNF synthesis. CPZ protected against LPS lethality when administered 30 minutes (min) before, simultaneously, or up to 10 min after LPS and was ineffective when given 30 min after LPS, paralleling the inhibitory effect on TNF production. In another experimental model, where mice were sensitized to LPS toxicity by actinomycin D, CPZ significantly inhibited LPS lethality and hepatotoxicity, whereas under these conditions DEX was inactive. These experiments indicate that CPZ has a protective action in both glucocorticoid-sensitive and -resistant models of endotoxic shock.


1969 ◽  
Vol 37 (2) ◽  
pp. 178-189 ◽  
Author(s):  
James L. Anderson ◽  
Ronald Gautreau

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