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This paper addresses overload control issues for distributed control systems, i.e. multiprocessor systems, in telephone exchanges, signalling transfer points, service control points, home location registers, etc. Three different strategies for rejecting calls, due to severe overload conditions, are examined. The strategies differ in that they allow call rejection during different time epochs of th
Abstract is not available
Popular Abstract in Swedish Prostata cancer är en av de vanligast förekommande cancerformerna hos män i västvärlden och den vanligaste förekommande hos män i Sverige. Årligen diagnosticeras i Sverige ungefär 6000 fall och mer än 2000 avlider. Drygt 70% av alla som drabbas är äldre än 70 år medan endast ett fåtal är yngre än 50 år. Sjukdomen ter sig mycket olika hos olika patienter. En del som drabHuman glandular kallikrein 2 (hK2) is a predominantly prostate produced protein with many similarities to prostate-specific antigen (PSA). Just like for PSA elevated levels of hK2 can be found in men with protate cancer. We created an assay where hK2 in serum could reliably and with negligible cross-reactivity with PSA, be measured down to 0.030 ng/mL. The assay measured free hK2 and hK2 complexe
Gold nanoelectrodes with gaps of less than 10 nm were formed by conventional E-beam lithography on silicon substrates covered by Al2O3. Molecular films were deposited on the electrodes by Langmuir-Shaefer technique. The I-V curves of such systems show a suppressed conductance indicating a correlated electron tunnelling through the system. All measurements were made at room temperature.
Popular Abstract in Swedish Parkinsons sjukdom är en av de vanligaste neurologiska sjukdomarna i västvärlden. Vad som orsakar sjukdomen är fortfarande okänt men det betyder sannolikt att det är många faktorer som samverkar för att leda fram till sjukdomen. De mest framträdande symptomen i Parkinsons sjukdom är stelhet, oförmåga att initiera rörelser (s.k. akinesi), balanssvårigheter och tremor (daAnimal models of Parkinson’s disease and L-DOPA-induced dyskinesia are essential to explore pathophysiological hypotheses and to test new treatment options. There are many different animal models of Parkinson's disease, which differ greatly with respect to species, mechanisms of nigral cell death, and extent of dopamine-dependent motor deficits. My work has been performed in rats and mice with uni
No abstract but see Conclusion: In this article I have described a kind of relationship to the subject which may aptly be called a perspective while distinguishing it from other similar phenomena (such as “aspect”): it is a case in which an object is conceived as being constant, while the modes of access which a subject may have to it varies. I have also singled out some different kinds of perspe
uses a microporous membrane operated in cross-flow. The continuous phase is pumped along the membrane and sweeps away dispersed phase droplets forming from pore openings as shown in Figure 1. The key feature of the membrane emulsification process, which sets it apart from conventional emulsification technologies, is that the size distribution of the resulting droplets is primarily governed by the
Popular Abstract in Swedish Extracellulär matrix är namnet på det molekylära nätverk vilket finns mellan celler i flercelliga organismer. Det består av socker och proteiner organiserade i olika vävnadsspecifika nätverk. Två huvudformer finns, basalmembran och interstitiell extracellulär matrix. Basalmembran ligger som en tunn filt under epitel- och endotelceller, runt fettväv, muskler och periferaBasement membranes are sheet like structures underlying epithelial, endothelial, adipocytes, muscle and peripheral nerve cells. Laminins are an important family of basement membrane proteins implicated in various biological functions through their interactions with cell surface receptors. Laminins are trimers composed of a, b and g chains. Integrins, dystroglycan and other transmembrane glycoprote
In addition to three personal narratives by musicians from different continents, the author has invited scholars from diverse spezialisations and locations to comment on different sections of the book, opening up a critical dialogue with voices from different parts of the globe. Musical categorization, identity, values, aesthetic evaluation, creativity, curriculum, assessment and teacher education
