From an industry perspective, antivirus and antispam scanning are virtually inseparable, and MessageLabs is among many companies jockeying to position themselves as full-service contractors, offering to filter, scan, scrub and archive both incoming and outgoing mail.
The conditions of the survey – CuKα, 30 mА, 30 kV, Ni-filter, scanning step 2θ 0.05°, 1 deg/min.
But they also knew that, to filters scanning for telltale spam words in the text of e-mail messages, a picture of the words "Hot Stox!!" is significantly different from the words themselves.
Mr Smith also noted that it was unsurprising that the method used to create these filters – scanning sites for the use of sex-related keywords – flagged up false-positives, but that the ISPs can now put more energy into creating a strong 'white list' of approved sites.
However, the facility to repeat and filter scans (so-called 'scan sequence approach'; [see 50]) allows unwanted objects (such as passing people) to be systematically removed from the image data allowing scanning to be undertaken in busy periods when necessary.
Before we analyzed the surface of the filter by scanning electron microscopy (EVO LS 10, Carl Zeiss, Oberkochen, Germany), the filter was sputter-coated with a 3 nm layer of gold (SCD 050, Bal-Tec, Scotia, USA).
The morphology of samples was studied by powder X-ray diffraction (XRD) (DRON-4-07, LOMO, Russia, Cu Kα radiation, Ni filter) and scanning electron microscopy (SEM) (JSM 6100, JEOL, Japan).
We find it to be 6 (DNA) to 10 (amino acids) times faster when calculating the same number of scores on random sequences, and we recommend it as a preliminary filter when scanning large databases.
CSC 7: Email and Web Browser Protections was a new addition to version 6.0 of the CSC; its sub-controls involve disabling unnecessary plugins, add-ons and scripting languages in all web browsers and clients, logging URL requests, maintaining network based URL filters, scanning and blocking email attachments with malicious code, among others.
As a readout for the voltage drop, we engineered cysteine residues along the selectivity filter and scanned the sensitivity of their modification rates by Ag+ to the transmembrane potential.
