IMPLICATIONS AND PERSPECTIVES OF THE PRESENT ECONOMIC CRISIS

The financial crisis that hited the global economysince the summer of 2007 is without precedent inpost-war economic history. Although its size andextent are exceptional, the crisis has many featuresin common with similar financial-stress drivenrecession episodes in the past. The crisis is deep, being the result of a paradigm and a way to make public the policy which did not understand that markets functioning well are not equal to the lack of rules/ regulations and the decrease of the public interventions in economy can easily become unproductive. The order system was a political, historical and economic failure. But the markets can also fail and, that is why, the judgement by public action must not be eliminated. We are in full economic crisis, forcing us to analyze both the factors and the effects of the crisis, which spread immediately in this global world with serious economic and cultural interdependencies.financial crisis, growht, global recession, credit jam

Pedersen ideals of tensor products of nonunital C*-algebras

We show that positive elements of a Pedersen ideal of a tensor product can be approximated in a particularly strong sense by sums of tensor products of positive elements. This has a range of applications to the structure of tracial cones and related topics, such as the Cuntz-Pedersen space or the Cuntz semigroup. For example, we determine the cone of lower semicontinuous traces of a tensor product in terms of the traces of the tensor factors, in an arbitrary C*-tensor norm. We show that the positive elements of a Pedersen ideal are sometimes stable under Cuntz equivalence. We generalize a result of Pedersen's by showing that certain classes of completely positive maps take a Pedersen ideal into a Pedersen ideal. We provide theorems that in many cases compute the Cuntz semigroup of a tensor product.Comment: circulated as preprint 2017

The classification ofseparable simple C*-algebras which are inductive limits of continuous-trace C*-algebraswith spectrum homeomorphic to the closed interval [0,1]

A classification is given of certain separable nuclear C*-algebras not necessarily of real rank zero, namely, the class of separable simple C*-algebras which are inductive limits of continuous-trace C*-algebras whose building blocks have spectrum homeomorphic to the closed interval [0,1], or to a disjoint union of copies of this space. Also, the range of the invariant is calculated.Comment: 41 pages, 6figure

Order acceptance under uncertainty in batch process industries

XIV+140hlm.;24c

Human Health Risk Assessment Posed by PCB Exposure in Bucharest Area

AbstractPersistent Organic Pollutants (POPs) are a huge group of chemicals that have been linked to various adverse health effects in humans, independent on where they live. Polychlorinated biphenyls (PCBs) belong to the group of Persistent Organic Pollutants, being one of the most widespread environmental pollutants. Even exposure to low levels of PCBs conducts to various acute and chronic health effects.Substances like PCBs, which are accumulated at hazardous levels in living organisms, pose environmental and human-health risks. Our objective in this paper is to evaluate the risk for human health using GIUDITTA software. The model was applied to a case-study of 7polychlorinated biphenyls (PCB 28, PCB52, PCB 101, PCB 118, PCB 138, PCB 153, PCB 180) measured in an urban soil located in Bucharest.GIUDITTA is a Windows based software program, developed in Italy by Dames & Moore commissioned by and in cooperation with Milan Province and calculates the risk according to ASTM standard E2081-00 (Standard Guide for Risk-Based Corrective Action).The results of the risk assessment from this case-study could be a useful tool for urban planning and development

Accuracy in starphotometry

Abstract: Starphotometry, or stellar spectrophotometry, is a passive remote sensing method for retrieving the spectral optical depth of the atmosphere, and a night counterpart of sunphotometry. Despite all the technological advances, robust and accurate starphotometry remains a challenge that has limited its evolution. The general objective in this work is to inspire trust and interest in starphotometry by improving its reliability, its measurement accuracy and by identifying particular cases where it outperforms sunphotometry (which is in fact starphotometry with the star being our Sun). In order to achieve such an objective we need to better understand the detailed nature of specific starphotometry attributes: the different spectral classes of stars, the properties of weaker reference sources, the consequences of a larger telescope aperture, a smaller Field of View (FOV)