Search results for "NET"
showing 10 items of 55461 documents
Inter‐individual variation of the urinary steroid profiles in Swedish and Norwegian athletes
2020
The steroidal module of the Athlete Biological Passport (ABP) aims to detect doping with endogenous steroids, e.g. testosterone (T), by longitudinally monitoring several biomarkers. These biomarkers are ratios combined of urinary concentrations of testosterone and metabolically related steroids. However, it is evident after five years of monitoring steroid passports, that there are large variations in the steroid ratios complicating its interpretation. In this study, we used over 11 000 urinary steroid profiles from Swedish and Norwegian athletes to determine both the inter‐ and intra‐individual variations of all steroids and ratios in the steroidal passport. Furthermore, we investigated if…
Regulation of type 1 fimbriae synthesis and biofilm formation by the transcriptional regulator LrhA of Escherichia coli
2005
Type 1 fimbriae ofEscherichia colifacilitate attachment to the host mucosa and promote biofilm formation on abiotic surfaces. The transcriptional regulator LrhA, which is known as a repressor of flagellar, motility and chemotaxis genes, regulates biofilm formation and expression of type 1 fimbriae. Whole-genome expression profiling revealed that inactivation oflrhAresults in an increased expression of structural components of type 1 fimbriae.In vitro, LrhA bound to the promoter regions of the twofimrecombinases (FimB and FimE) that catalyse the inversion of thefimApromoter, and to the invertible element itself. TranslationallacZfusions with these genes and quantification offimEtranscript le…
Usability aspects of Network Element Management Unit
2004
Lithic Management in the Chassey Culture Neolithic
2009
The integrated technological approach of the lithic industries in Southern France Chassey culture and neighbouring cultures is a way to highlight a complex organisation of space. The development of long distance diffusion networks of lithic products from western Provence creates interdependence between producing-exporting sites and receiving-consuming sites. The analysis of their functioning, from raw material sources until remote consuming sites, is undergone on various scales (from supra-regional to local), through lithic technology and use wear analysis.
Automatic evaluation of information provider reliability and expertise
2013
Published version of an article in the journal: World Wide Web. Also available from the publisher at: http://dx.doi.org/10.1007/s11280-013-0249-x Q&A social media have gained a lot of attention during the recent years. People rely on these sites to obtain information due to a number of advantages they offer as compared to conventional sources of knowledge (e.g., asynchronous and convenient access). However, for the same question one may find highly contradicting answers, causing an ambiguity with respect to the correct information. This can be attributed to the presence of unreliable and/or non-expert users. These two attributes (reliability and expertise) significantly affect the quality o…
Human conceptualisation processes as a perspective on the design and evaluation of user-interfaces
2013
Uskottavuusfunktion approksimointi gaussisella variaatiomenetelmällä Poisson-sekamallin ja -latentin muuttujamallin tapauksessa
2017
Tilastollisen mallin parametrit estimoidaan usein suurimman uskottavuuden menetelmällä. Havaitulla aineistolla ja voimassa olevan mallin vallitessa suurimman uskottavuuden estimointi valitsee malliparametreille arvot, jotka maksimoivat uskottavuusfunktion. Uskottavuusfunktion ollessa integraali yli latenttien eli havaitsemattomien muuttujien, ei uskottavuusfunktiota voida kuitenkaan kirjoittaa suljetussa muodossa. Tällöin uskottavuusfunktio voidaan approksimoida variaatiomenetelmällä. Variaatiomenetelmässä uskottavuusfunktiolle lasketaan alaraja, jota maksimoimalla saadaan approksimaatiot malliparametrien suurimman uskottavuuden estimaattoreille. Variaatiomenetelmä tuottaa malliparametrien …
Makrouutisten vaikutus valuuttakurssin volatiliteettiin
2004
Hurrikaanien pitkät jäljet
2022
Suomalainen media keskittyy hurrikaaneja koskevassa uutisoinnissaan listaamaan kulloinkin Yhdysvalloissa maihin iskeneen hurrikaanin kuolonuhrien ja taloudellisten tuhojen määrää. Tällainen uutisointi voi pahimmillaan irrottaa hurrikaanit niiden laajemmista yhteiskunnallisista vaikutuksista. nonPeerReviewed