Parton Energy Loss in Two-Stream Plasma System

The energy loss of a fast parton scattering elastically in a weakly coupled quark-gluon plasma is formulated as an initial value problem. The approach is designed to study an unstable plasma, but it also reproduces the well known result of energy loss in an equilibrium plasma. A two-stream system, which is unstable due to longitudinal chromoelectric modes, is discussed here some detail. In particular, a strong time and directional dependence of the energy loss is demonstrated.Comment: 6 pages; presented by K. Deja at the conference Strangeness in Quark Matter, Cracow, Poland, September 18-24, 201

Energy loss in unstable QGP - problem of the upper cut-off

The energy loss of a highly energetic parton in a weakly coupled quark-gluon plasma is studied as an initial value problem. An extremely prolate plasma, where the momentum distribution is infinitely elongated along one direction, is considered. The energy loss is strongly time and direction dependent and its magnitude can much exceed the equilibrium value. It is logarithmically ultraviolet divergent. We argue that a good approximation to the energy loss can be obtained if this divergence is cut off with the parton energy.Comment: 6 pages, presented by St. Mrowczynski at International Conference on New Frontiers in Physics, Kolymbari, Crete, Greece, August 28 - September 5, 201

Differential sequential patterns supporting insulin therapy of new-onset type 1 diabetes

Background: In spite of numerous research efforts on supporting the therapy of diabetes mellitus, the subject still involves challenges and creates active interest among researchers. In this paper, a decision support tool is presented for setting insulin therapy in new-onset type 1 diabetes. Methods: The concept of differential sequential patterns (DSPs) is introduced with the aim of representing deviations in the patient's blood glucose level (BGL) and the amount of insulin injections administered. The decision support tool is created using data mining algorithms for discovering sequential patterns. Results: By using the DSPs, it is possible to support the physician's decisionmaking concerning changing the treatment (i.e., whether to increase or decrease the insulin dosage). The other contributions of the paper are an algorithm for generating DSPs and a new method for evaluating nocturnal glycaemia. The proposed qualitative evaluation of nocturnal glycaemia improves the generalization capabilities of the DSPs. Conclusions: The usefulness of the proposed approach was evident in the results of experiments in which juvenile diabetic patients actual data were used. It was confirmed that the proposed DSPs can be used to guide the therapy of numerous juvenile patients with type 1 diabetes

Databrokering (databrokerage) : information culture perspective

Rynek informacji w społeczeństwie sieciowym stanowi bardzo zróżnicowaną i szeroką gałąź gospodarki. Działalność biznesowa oparta o informację przybiera wiele form, od małych i średnich przedsiębiorstw do dużych medialnych korporacji oraz firm, które budują swój kapitał w oparciu o transfer informacji zawierających dane osobowe. Zróżnicowanie aktywności biznesowych wiązanych z informacją stanowi wskaźniki kształtującej się kultury informacyjnej w skali globalnej i lokalnej. Opracowanie prezentuje obraz rynku danych osobowych jako odzwierciedlenie problemów, które dotyka kategoria kultury informacyjnej. Celem artykułu jest charakterystyka databrokeringu, w której przedstawiony zostanie w sposób przeglądowy koncepcja takiej działalności oraz analiza podstawowych regulacji prawnych kształtujących tę działalność. Dla uwidocznienia różnorodności runku informacji w skali globalnej i lokalnej kultury informacyjnej zostało dokonane porównanie dwóch skrajnych przedstawicieli tego rynku - databrokerów i infobrokerów.Information market in network society is an divergent and wide branch of global economic. Business activities based on the information takes many forms, from small and medium-sized enterprises to the giant media corporations and companies which build their capital based on personal data information trafficking. This diversity in business activity related to information is also the determinant of the emerging information culture on local and global scale. The paper presents the image of databrokerage market on international and Polish scale, mainly in the field of information culture. The purpose of this article is to characterize information and data industry, conduct a coherent presentation of the databrokerage concept and analyze basic regulations that shape that business. It was deliberately pointed out that the diversity of companies in the information market is a fact which creates a broad spectrum to growth in the information industry for many information specialists. According to this thesis it was conducted a comparison of the characteristics of two extremes cases of market representatives