Radial Distribution Function
Radial Distribution Function - Related Videos
01:22
Cholinesterases: Distribution and Function
0 Views •
2023
Cholinesterases are a group of serine hydrolase enzymes that play a crucial role in the breakdown of choline esters. The two primary types of cholinesterases are acetylcholinesterases (AChEs) and butyrylcholinesterase (BuChEs), which differ in their distribution, function, and substrate specificity. AChEs, also known as true cholinesterases, specifically hydrolyze acetylcholine, while BuChEs, often referred to as pseudocholinesterases, can hydrolyze various choline esters, including...
10:01
Radial Mobility and Cytotoxic Function of Retroviral Replicating Vector Transduced, Non-adherent Alloresponsive T Lymphocytes
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We describe a protocol to monitor radial mobility of non-adherent immune cells in vitro using a cell sedimentation manifold/slide apparatus. Cell migration is tracked on monolayers of tumor cells or on extracellular matrix proteins. Examination by light and fluorescence microscopy allows for observation of cell mobility and cytotoxic functionality.
02:39
Evaluating Motor Impairment in C. elegans Models Using the Radial Locomotion Assay
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2025
This video demonstrates the use of a radial locomotion assay to evaluate motor dysfunction in C. elegans expressing either wild-type or ALS-mutant human TDP-43 protein. Worms with varying levels of wild-type or mutant TDP-43 expression are allowed to crawl, and their movement is measured by the radial distance traveled from the central point on the assay plate. The assay distinguishes between mild, moderate, and severe motor impairments based on the distance traveled by the different C. elegans...
01:23
Radial System Protection
0 Views •
2024
Radial systems employ time-delay overcurrent relays to reduce load interruptions. When a fault occurs, the nearest breaker opens first, while upstream breakers remain closed due to longer delay settings. This approach ensures minimal disruption to the rest of the system. In a radial system with a fault downstream of the third breaker, ideally, only the third breaker will open, isolating the fault and interrupting the load connected beyond it. The second breaker has a longer delay setting,...
08:09
Use of an Eight-arm Radial Water Maze to Assess Working and Reference Memory Following Neonatal Brain Injury
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Cited by 61 •
2013
The eight-arm radial water maze is designed to evaluate reference and working memory performance simultaneously by requiring subjects to use extra-maze cues to locate escape platforms and remedies the limitations observed in land based radial arm maze designs.
FAQs
Peak positions identify distances at which neighboring particles are preferentially found relative to a reference particle. In a chemical system, these distances can indicate recurring local arrangements and distinguish closely packed coordination shells. Comparing peak locations across systems helps researchers assess how molecular organization changes with composition or intermolecular interactions.
The area associated with a peak provides information about the population of particles within a coordination shell around the reference particle. A larger area indicates more neighbors contributing within that distance range, whereas separate peaks can mark successive shells. This interpretation connects the RDF to local coordination and short-range structural organization.
The function compares observed particle separations with those expected for an ideal uniform distribution, allowing structural preferences to be distinguished from simple geometric abundance. Deviations from that reference indicate local ordering or exclusion at particular distances. This normalization makes RDFs useful for comparing microscopic organization among different molecular or condensed-phase systems.
An RDF is obtained by examining separations between a selected reference particle and surrounding particles, organizing those separations by distance, and expressing their relative occurrence through g(r). The resulting distance-dependent pattern is then interpreted through peak positions and areas. In molecular dynamics simulations, this workflow converts sampled microscopic configurations into a description of local structure.
For solvation analysis, the distance pattern around a reference species reveals how surrounding particles are organized in its local environment. Peak locations can identify preferred solvent or neighbor distances, while peak areas indicate the population of corresponding coordination shells. These structural results help interpret how molecular surroundings relate to intermolecular interactions.
RDF analysis summarizes the spatial arrangements sampled during a molecular dynamics simulation and links those microscopic patterns to local order. Researchers can use the positions and areas of RDF peaks to examine neighbor distances and coordination shells, then relate the observed structure to intermolecular interactions or broader material properties.