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Videos de Conceptos Relacionados

Imaging <em>Mycobacterium tuberculosis</em> in Mice with Reporter Enzyme Fluorescence 10:06

7.8K

We describe the optical imaging of mice infected with Mycobacterium tuberculosis (M. tuberculosis) using reporter enzyme fluorescence (REF). This protocol facilitates the sensitive and specific detection of M. tuberculosis in pre-clinical animal models for pathogenesis, therapeutics and vaccine...

The Attentional Blink 08:52

17.0K

Source: Laboratory of Jonathan Flombaum—Johns Hopkins University
In order for recognition of a certain stimulus to take place, visual attention needs to be directed towards said stimulus. To the earliest parts of the visual system, objects are not objects, they are collections of visual features-lines, corners, changes in texture, color, and light. Attention is the resource that is necessary for later processing in order to recognize what a given bundle of features adds up to. This makes...

Separation and Fractionation of Culture Filtrate Proteins (CFPs) from <em>Mycobacterium tuberculosis</em> 08:48

554

This protocol describes the culturing, harvesting, and concentration of secreted proteins of Mycobacterium tuberculosis. Culture filtrate proteins (CFPs) are quantified, separated into 20 fractions by isoelectric focusing, and further resolved into 30 fractions using a preparative SDS-PAGE and an electroelution system.

An Experimental Model to Study Tuberculosis-Malaria Coinfection upon Natural Transmission of <i>Mycobacterium tuberculosis</i> and <i>Plasmodium berghei</i> 09:02

20.2K

Tuberculosis and malaria are two of the most prevalent infections in humans and major causes of morbidity and mortality in impoverished populations in the tropics. We established an experimental model system to study outcome of malaria-tuberculosis coinfection in mice after challenge with both pathogens via their natural route of...

The MODS method for diagnosis of tuberculosis and multidrug resistant tuberculosis 23:06

19.6K

The microscopic-observation drug-susceptibility (MODS) assay is a low-cost, low-tech tool for high-performance detection of tuberculosis (TB) and multidrug-resistant tuberculosis (MDRTB). This video describes the MODS liquid media culture...

Measurement of Neurophysiological Signals of Ignoring and Attending Processes in Attention Control 09:37

9.5K

Attention control comprises enhancement of target signals and attenuation of distractor signals. We describe an approach to measure separately but concurrently, the neurophysiology of attending and ignoring in sustained intermodal attention, utilizing a passive control condition during which neither process is continuously engaged.