Search Results for: scan
Was an automatic slide feeder used?
No, scanning TMAs required manual monitoring.
How long does the scanner take to scan in a whole slide?
Usually under an hour, but it depends on how many discs are on the specimen.
Why did my firewall just log an attempt to access my device right after I visited the World Community Grid website?
Some users have noticed, via their software firewall, that trace-route scans occur after communicating with the World Community Grid server. These are in fact normal and not someone trying to break into your machine. These are used to measure which of several paths through the Internet give the best communication performance to your machine. The servers are located in a massive hosting center, which regularly optimizes traffic between users and the servers by shifting communications among several Internet providers, depending on the destination and trace-route measurements.
Why is TB hard to treat?
TB diagnosis and treatment are very complex. Diagnosis is long, with several tests usually needed to diagnose active TB, including chest X-rays, sputum samples, microscopy and culture, CT scans and biopsies. Treatment is also long, with regimens consisting of six to nine months or more of multidrug therapy. Patients can also fall ill with what is known as latent TB infection (LTBI), which means that they are infected with TB but they don’t manifest the clinical symptoms of the disease. It is estimated that one third of the world’s population has LTBI and although they don’t have active TB they may develop it in the future. The available diagnostic tools for LTBI have serious limitations in terms of both accuracy and effectiveness, thus leaving many cases undiagnosed.
Mycobacteria are naturally resistant to antibiotics due to being surrounded by a waxy coat of lipids, called mycolic acids. This waxy coat protects the bacterium and makes it impermeable to most antibiotics. This means that even after the lengthy process of diagnosis, it is still very difficult to establish which combination of antibiotics might be successful against the bacterium.