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Time-lapse photography

Many experimental techniques now provide details of dynamical events on short timescales. Time-dependent theory, such as END, offer the capabilities to obtain information about the details of the transition from initial-to-final states in reactive processes. The assumptions of time-dependent perturbation theory coupled with Fermi s Golden Rule, namely, that there are well-defined (unperturbed) initial and final states and that these are occupied for times, which are long compared to the transition time, no longer necessarily apply. Therefore, truly dynamical methods become very appealing and the results from such theoretical methods can be shown as movies or time lapse photography. [Pg.236]

Fig. 1.86 Stills from a scanning electron microscope study by time-lapse photography of iron oxidation showing the results of the crack-heal mechanism. Left, Immsl/tm right, 1 mm 0-5 /tm (courtesy Central Electricity Research Laboratories)... Fig. 1.86 Stills from a scanning electron microscope study by time-lapse photography of iron oxidation showing the results of the crack-heal mechanism. Left, Immsl/tm right, 1 mm 0-5 /tm (courtesy Central Electricity Research Laboratories)...
Just as myosins are able to move along microfilaments, there are motor proteins that move along microtubules. Microtubules, like microfilaments, are polar polymeric assemblies, but unlike actin-myosin interactions, microtubule-based motors exist that move along microtubules in either direction. A constant traffic of vesicles and organelles is visible in cultured cells especially using time-lapse photography. The larger part of this movement takes place on micrombules and is stimulated by phorbol ester (an activator of protein kinase C), and over-expression of N-J aj oncoprotein (Alexandrova et al., 1993). [Pg.99]

Programmable digital cameras. Such equipment also can be used for surveillance purposes and have the capability of time-lapse photography in order to monitor slow processes. [Pg.298]

Time-lapse photography has been used to follow the course of the suspension polymerization of vinyl chloride. This study showed that the spherical droplets of monomer burst under the action of the shearing force of the agitator to produce deformed and irregular resin particles. Without agitation, on the other hand, opaque spots appear in the spherical monomer droplets that increase in size as the polymerization proceeds [91]. [Pg.379]

More detailed information on turning rates and movements can be obtained by providing a surface on the petri dish that will record and retain the larval tracks. Jones and Coaker (1977) utilized a thin layer of agar coated with talc over which larvae of the carrot fly, Psila rosae, crawled. Larval tracks were evident in the talc field, and permanent records of larval movement were made by photographing the plates. Time-lapse photography also has been used to provide a permanent track of movement in relatively small arenas (Bell Tobin 1981), and more modem video equipment provides greater flexibility for such recording. [Pg.224]

Cell cultivation on polylysine-coated surfaces. Most commonly used Drosophila cell lines adhere only loosely to the substrate. For some purposes (e.g., time-lapse photography and cytological examination of living cells), it is desirable to fix the growing cells more firmly to the substrate. This can be accomplished by treating the substrate with polylysine, with no obvious effect on the growth of the cells (see Protocol 20.3). [Pg.378]


See other pages where Time-lapse photography is mentioned: [Pg.127]    [Pg.52]    [Pg.425]    [Pg.269]    [Pg.232]    [Pg.52]    [Pg.2205]    [Pg.425]    [Pg.2268]    [Pg.198]    [Pg.95]    [Pg.147]    [Pg.257]    [Pg.58]    [Pg.157]    [Pg.499]    [Pg.326]    [Pg.326]    [Pg.16]    [Pg.73]    [Pg.79]    [Pg.823]    [Pg.10]    [Pg.338]    [Pg.171]    [Pg.308]    [Pg.1465]    [Pg.13]    [Pg.154]    [Pg.493]    [Pg.103]    [Pg.595]    [Pg.50]   
See also in sourсe #XX -- [ Pg.308 ]

See also in sourсe #XX -- [ Pg.224 ]




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