Beobachtung des Planeten (152)

Internetzensur: Methoden und deren Beobachtung

ZUSAMMENFASSUNG In der vorliegenden Arbeit geht es um Internetzensur im Sinne von Internetausfällen, wie sie auf Anordnung von den Regierungen in Ägypten und Libyen zu Beginn des Jahres 2011 im Zusammenhang mit den dort auftretenden Revolutionen passierten. Im Referenzpaper [1] wurden diese durch BGP-Routenaktualisierungen und unangeforderten Datenverkehr (Internet Background Radiation) in Dark...

Verteilte Beobachtung von Ereignissen im Nexus-Lokationsdienst

The goal of the Nexus Event Service is to detect state change in services including the distributed Nexus Location Service. So far only state change on an isolated location service node can be detected. This work presents a model for distributed observation of events tailored to Nexus. With this model state change in a distributed set of location service nodes can be detected.

IT-gestützte Marktforschung - Möglichkeiten einer internationalen webbasierten Markt-beobachtung und -analyse des Marktes für energie-effizientes Bauen

Dmd053017 141..152

Ticlopidine is a first-generation thienopyridine antiplatelet drug that prevents adenosine 59-diphosphate (ADP)-induced platelet aggregation. We identified the enzymes responsible for the two-step metabolic bioactivation of ticlopidine in human liver microsomes and plasma. Formation of 2-oxo-ticlopidine, an intermediate metabolite, was NADPH dependent and cytochrome P450 (CYP) 1A2, 2B6, 2C19, a...

Op-molb140259 144..152

Protein tyrosine phosphorylation is a key regulatory modification in metazoans, and the corresponding kinase enzymes have diversified dramatically. This diversification is correlated with a genome-wide reduction in protein tyrosine content, and it was recently suggested that this reduction was driven by selection to avoid promiscuous phosphorylation that might be deleterious. We tested three pr...