منابع مشابه
Attention and scintillation
The scintillating grid is a recently discovered visual illusion, created by superimposing white discs on the intersections of orthogonal gray bars on a black background. Even though the entire display is stationary, observers perceive dark spots appearing and disappearing rapidly within some of the white discs. This scintillation effect is correlated with eye position and eye movements. Here we...
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The new Lcica RM 2165 automatic, heavy-duty microtome has an advanced step motor that permits an exact specimen feed and reproducible sectioning results. Features include 70 mm vertical stroke length, unique step trim function, and programmable specimen retraction. Technical features include a handwheel rocking sectioning mode; the motorized specimen feed can be linked to change the handwheel t...
متن کاملScintillation Proximity Assay on the TopCount Microplate Scintillation Counter
The TopCountTM Microplate Scintillation Counter quantitates radioisotopes by liquid scintillation counting in standard microplate formats. Assays that previously had to be transferred from microplates to vials or to non-standard formats for counting can now be quantitated directly in microplates. TopCount can count up to 12 samples simultaneously with performance comparable to that of discrete ...
متن کاملThe Scintillation Counter
The development of detectors for both counting and measuring the energy of particles and photons has played an important role in the evolution of nuclear physics. In this experiment, you will be introduced to one such detector the scintillation counter which is particularly suitable for detecting γ-ray photons. You will use it to observe the energy spectrum of γ-rays from several nuclei and stu...
متن کاملFluorescence response fimctions and scintillation pulse shapes
Expressions are derived for the fluorescence response functions of organic solution systems in which non-radiative energy transfer occurs and obeys either Stern-Volmer or Forster kinetics. Scintillation pulse shapes are evaluated for typical crystals, binary and temary liquid solutions, and binary plastic solutions. The scintillation decay time is inadequate to describe the time characteristics...
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ژورنال
عنوان ژورنال: Vision Research
سال: 2003
ISSN: 0042-6989
DOI: 10.1016/s0042-6989(03)00412-7