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It is well known that dielectrics with the reconstruction of zone structure (Pb1-xSnxTe, for example) have two-dimensional layers with a specific electron properties. A corresponding relativistic model has been discussed, in particular, by B.A. Volkov and O.A. Pankratov (1985). The general nature of the effect under consideration can be demonstrated by in a simple model setting, and the aim here i
The Sanfilippo syndrome type B is a lysosomal storage disorder caused by deficiency of alpha-N-acetylglucosaminidase; it is characterized by profound mental deterioration in childhood and death in the second decade. For understanding the molecular genetics of the disease and for future development of DNA-based therapy, we have cloned the cDNA and gene encoding alpha-N-acetylglucosaminidase. Clonin
Semmelweis’s work predates the discovery of the power of randomization in medicine by almost a century. Although Semmelweis would not have consciously used a randomized controlled trial (RCT), some features of his material—the allocation of patients to the first and second clinics—did involve what was in fact a randomization, though this was not realised at the time. This article begins by explain
Abstract in UndeterminedOver the last decade a great deal of research attention has been paid to the Internet as a potential vehicle for civic and/or political engagement among young people. Many of these analyses have been looking (or perhaps hoping) for a simple cause-and-effect relationship. Young people seem uninterested in traditional forms of politics, but they are very interested in Interne
Self-tuning control of the dissolved oxygen concentration has been tested in full scale at the Käppala Sewage Works at Lidingö, Sweden. The controller has been shown to be robust during varying operating conditions. It also gives the potential for the estimation of interesting variables, such as the oxygen uptake rate. A number of water quality variables have been examined. Interesting couplings b
Packaging affects the logistical and environmental efficiency of supply chains. The purpose is to increase knowledge of the current state, trade-offs and improvement potential of packaging logistics in supply chain practice. The research is based on 22 cases, each of which consists of supply chain mapping and structured interviews with three supply chain actors (manufacturer, distributor and retai
The article presents and analyses the editorial ideals and practices of the Enlightenment press with regard to their participatory elements. The decline of these ideals and practices, during the era of the establishment of the modern press in the 1820s, 1830s and 1840s, is discussed with regard to its advocates’ self-legitimating ambitions. These professional efforts were carried out in various wa
Fashion's universal nature does not preclude strong variations in its significance from society to society. As a stratification variable, fashion's importance increases in step with economic growth. Simmel sees the ‘need for distinction’ and the ‘need for union’ as preconditions for fashion, with certain societies lacking the necessary motivation. Variations in fashion's importance have also been
During the last 15 years questions concerning gender, technology and knowledge, have become increasingly recognized as central to the field of the sociology of technology. Nonetheless, critical questions remain unanswered. These issues are addressed here through investigations of the relationship between gender, work, knowledge and technology. This thesis is composed of an introduction and four in
Härmed ansöker Institutionen för arkeologi och antikens historia tillstånd till en provundersökning av en mesolitisk boplatsläm Härmed ansöker Institutionen för arkeologi och antikens historia om tillstånd för en undersökning av en mesolitisk boplatslämning benämnd Viss mosse 2 inom fastigheten Råby 28:3, Svensköp socken, Hörby kommun, Skåne län. Inledning Sedan några år bedriver Econova Garden AB
https://www.ark.lu.se/media/utbildning/dokument/kurser/ARKA12/20131/Viss_mosse_anskan_2013.pdf - 2026-07-10
