Multi Position Scan
Multi Position Scan - Related Videos
02:28
Leaky Scanning
0 Views •
2020
During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA. Marilyn Kozak discovered that the sequence RCCAUGG (where R stands for...
07:35
The Multi-group Experiment
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2023
Source: Laboratories of Gary Lewandowski, Dave Strohmetz, and Natalie Ciarocco—Monmouth University A multi-group design is an experimental design that has 3 or more conditions/groups of the same independent variable. This video demonstrates a multi-group experiment that examines how different interethnic ideologies (multiculturalism and color-blind) influence feelings about diversity and actions toward and out-group member. In providing an overview of how a researcher conducts a multi-group...
02:32
Position-effect Variegation
0 Views •
2020
In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.
12:03
Differential Scanning Calorimetry
0 Views •
2023
Source: Danielle N. Beatty and Taylor D. Sparks, Department of Materials Science and Engineering, The University of Utah, Salt Lake City, UT Differential scanning calorimetry (DSC) is an important measurement to characterize thermal properties of materials. DSC is used primarily to calculate the amount of heat stored in a material as it heats up (heat capacity) as well as the heat absorbed or released during chemical reactions or phase changes. However, measurement of this heat can also lead to...
07:19
Clock Scan Protocol for Image Analysis: ImageJ Plugins
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Cited by 16 •
2017
This paper describes two novel ImageJ plugins for 'Clock Scan' image analysis. These plugins expand the functionality of the original visual basic 6 program and, most importantly, make the program available to a large research community by bundling it with the ImageJ free image analysis software package.
FAQs
The defining control point is the set of predefined positions: each location is revisited according to the scan plan rather than chosen opportunistically during imaging. Keeping acquisition settings consistent across positions makes measurements more comparable, while expanded spatial coverage reduces the chance that conclusions reflect only one local region. This is especially valuable when biological features vary within a specimen.
Consistent acquisition settings provide a common basis for comparing images or measurements from different locations. If regions are recorded under changing conditions, observed differences may be harder to interpret because they could reflect acquisition changes rather than biology. Applying the same settings across the selected positions supports more dependable comparisons of cell or tissue features within the scanned sample.
The recorded locations can be reviewed individually or treated as a combined dataset, depending on the research question. Individual review preserves information about regional differences, whereas combined analysis supports assessment across the larger sampled area. This flexibility allows investigators to compare regions, quantify biological features, and evaluate spatial variation without limiting interpretation to one field of view.
A typical workflow begins by selecting multiple locations within the biological sample, followed by establishing consistent acquisition settings for every position. The microscope stage or optical system then moves between the selected locations and records each one. After acquisition, the separate images or measurements can be reviewed independently or brought together for downstream comparison and analysis.
Multi Position Scan is useful when a specimen contains spatially heterogeneous features or extends beyond a single field of view. It can be applied to cell cultures, tissue sections, and other biological samples where regional comparisons matter. Recording several predefined locations helps researchers examine broader sample areas while retaining access to measurements from each individual region.
Multiple scanned positions provide a basis for comparing regions within a sample, quantifying biological features, and monitoring changes across samples. In microscopy and high-content imaging studies, this broader spatial coverage can reveal patterns that a single location might not represent. The approach therefore connects local image measurements with a more comprehensive view of sample variation.