68 research outputs found
The importance of pancreatic inflammation in endosonographic diagnostics of solid pancreatic masses
No full textEndosonography (EUS) is one of the main diagnostic tools for the differential diagnosis of pancreatic masses. The aim of our study was to describe the value of this technique in the work-up of solid pancreatic lesions, considering the influence of the morphological evidence of pancreatic inflammation in the diagnostic process
Faellung/Flockung. Erfahrungen aus Labor u. Praxis. Ausgew. Beitr. d. 1. u. 2. Karlsruher Flockungstage
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The advanced treatment of stormwater runoff from separate sewer systems by dissolved air flotation
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Prokaryotic and eukaryotic unicellular chronomics
No full textAn impeccable time series, published in 1930, consisting of hourly observations on colony advance in a fluid Culture of E. coli, was analyzed by a periodogram and power spectrum in 1961. While the original senior author had emphasized specifically periodicity with no estimate of period length, he welcomed further analyses. After consulting his technician. he knew of no environmental periodicity related to human schedules other than an hourly photography. A periodogram analysis in 1961 showed a 20.75-h period, It was emphasized that "(...). the circadian period disclosed is not of exactly 24-h length." Confirmations notwithstanding, a committee ruled out microbial circadian rhythms based on grounds that could have led to a different conclusion, namely first, the inability of some committee members to see (presumably by eyeballing) the rhythms in their own data, and second, what hardly follows. that there were-too many analyses" in the published papers. Our point in dealing with microbes and humans is that analyses are indispensable for quantification and for discovering a biologically novel spectrum of cyclicities. matching physical ones. The scope of circadian organization estimated in 1961 has become broader, including about 7-day. about half-yearly, about-yearly and ex-yearly and decadal periodisms, among others. Microbial circadians have become a field of their own with eyeballing, yet time-microscopy can quantify characteristics with their uncertainties and can assess broad chronomes (time structures) with features beyond circadians. As yet only suggestive differences between eukaryotes and prokaryotes further broaden the perspective and may lead to life's sites of origin and to new temporal aspects of life's development as a chronomic tree by eventual rhythm dating in ontogeny and phylogeny. (c) 2005 Elsevier SAS. All rights reserved.NIGMS NIH HHS [K06 GM013981, K06 GM013981-43, GM-13981
Appendix to 'Groups of units of orders in Q-algebras'
No full textIn the paper 'Groups of units of orders in Q-algebras' by A.L.S. Corner, the following result is proved: A finite group G is realisable as the group of units of an order in a Q-algebra if and only if G is a C2C4C6QDB-group and either (a) G has a direct factor of order 2, or (b) G admits a direct decomposition G=G0×G1×⋯×Gr, where G1,...,Gr are B-blocks and G0 is a C4QD-group which may be embedded as a subdirect product of copies of C4, Q, D in such a way that it contains the diagonal involution −1.
The author remarks that the final condition relating to the diagonal involution is not very pretty. He believes that it could be replaced by a more desirable requirement that there exists an element g0 of order 4 in G such that CG(g0) is a 2-group. In the appendix by Federico Menegazzo, the proof of the "more desirable'' requirement is provided
Maintaining the Own Responsibility
No full textThis chapter introduces an alternative concept against the dominating trend of a complete outsourcing of IT services, especially in small and medium-sized enterprises (SME). It argues that the undiscriminating adoption of this trend tends to reduce IT on a cost factor and neglects the importance of specific IT knowledge for the continuous improvement of business processes. Also, it neglects the importance of a “communication interface” between the IS users on the one hand and the software development and IT production on the other hand. In opposition to leading management trends, this chapter will present an approach that bases on an internal competence centre for IS and that demands a steady communication between the IT staff and the various departments. In this approach, only selected IT services are externalized and the continuing growth of specific IS knowledge is essential. This approach was developed since the end of the 1990s at the building society, with about 100 employees, in which the author is working.</jats:p
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