The aim of this paper to draw attention to several aspects of the algebraic dependence in algebras. The article starts with discussions of the algebraic dependence problem in commutative algebras. Then the Burchnall-Chaundy construction for proving algebraic dependence and obtaining the corresponding algebraic curves for commuting differential operators in the Heisenberg algebra is reviewed. Next

The PHENIX experiment is one of the two large experiments at RHIC. It addresses most of the signals suggested from the Quark-Gluon Plasma. This paper focuses on the measurements of global observables and identified hadron spectra and particle ratios from the two first runs with Au+Au collisions at 130A GeV and 200A GeV. The energy density reached in the most central collisions is about 5 GeV/fm(3)

Popular Abstract in Swedish Det finns ett starkt samband mellan en förenings struktur och dess egenskaper. En detaljerad tredimensionell bild av en förenings struktur på molekylnivå är därför grundläggande information för att förstå dess reaktivitet, stabilitet och fysikaliska egenskaper. Röntgenkristallografi är ett utmärkt redskap för att ta reda på ett ämnes struktur i en kristall. En kristallsThis thesis focuses on i) the effect of packing on the molecular geometry ii) packing arrangements of neutral Pd(II) and Pt(II) complexes iii) the trans influence in Pt(II) complexes iv) the differences in bonding in corresponding Pd(II) and Pt(II) complexes and v) the geometry of Pd(II) complexes with potential catalytic properties. Detailed three-dimensional structural information at the atomic

The report is a brief introduction into the field of comparative genocide studies, written for the Swedish giovernment.

As road networks are becoming increasingly utilised, it is increasingly important to be able to accurately predict travel times for disseminating information among road users and to support traffic management decisions and planning. Over the past few years, a new way of making such predictions utilising the space-time autoregressive integrated moving average (STARIMA) model has been introduced. Th

I forskningen som presenteras här görs en empirisk undersökning av vetenskap och dess politiska gestaltning, i en analys av vad dessa begrepp betyder i olika sammanhang. Undersökningen är inriktad på en studie av formell och informell diskurs rörande universitet, utbildning och forskning. Den informella diskursen består av 202 skriftliga intervjuer, där elever och personal i båda länderna svarar pIn this research, science and its political appearance are studied through an empirical exploration of their representations in narrative expressions. The field of investigation is allocated to formal and informal discourse on university, education and research in Sweden and China. The analysed expressions were taken from 202 written reports, as students and personnel in both countries answered an

This study is concerned with an original traffic restoration strategy for wide-area communication networks called Elastic Rerouting (ER). ER aims at alleviating the tradeoff between the network cost and traffic restoration complexity observed in existing solutions. We present the strategy, provide a mathematical formulation for the ER related optimization problem, and discuss an approach to its re

This report reviews the literature and practical experience with assessing the safety performance of rural road locations using the traffic conflicts technique. It provides an overview of the development of conflict studies, which have overwhelmingly been applied at urban locations. It also discusses the current state of the art in the application of automated video analysis for the detection of c

This doctoral thesis has its theoretical origin in the notion that the information flow between management teams, financial analysts and investors is especially exposed to information asymmetry when knowledge-intense companies are concerned. Information asymmetry may aggravate agency problems and risk causing an impairment of the efficient allocation of capital on the stock market. Therefore, the