Pinning Procedure

The pinning procedure is a behavioral assay in which one animal physically restrains another, providing a measurable indicator of social interaction, aggression, or dominance. During the procedure, an observer or recording system documents events in which the subject is pressed against a surface and unable to move freely, typically measuring pinning frequency, duration, and context under controlled testing conditions. These behavioral measures help researchers assess social hierarchy, defensive responses, and the effects of genetic, environmental, or pharmacological manipulations. The procedure is especially useful in studies of animal behavior and neurobiology because it converts complex social encounters into quantifiable outcomes.

Pinning Procedure - Related Videos

Education

JoVE Core - Mechanical Engineering

Euler's Formula for Pin-Ended Columns

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2024

In structural engineering, the stability of columns under compressive axial loads is a critical consideration, described as buckling. A typical example involves a column PQ, which is pin-connected at both ends and subjected to a centric axial load F applied at one end, with a reaction force of F' = -F at the other end. Here, it is crucial to understand that when an applied load exceeds the critical load, buckling occurs as the system becomes unstable. To calculate the critical load, envision...

Research

JoVE Journal - Biology

Transverse Fracture of the Mouse Femur with Stabilizing Pin

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Cited by 3 •

2021

This protocol describes a method to perform fractures on adult mice and monitor the healing process.

Research

JoVE Journal - Bioengineering
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Reconfigurable Microfluidic Channel with Pin-discretized Sidewalls

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2018

A microfluidic channel with deformable sidewalls offers flow control, particle handling, channel dimension customization and other reconfigurations while in use. We describe a method for fabricating a microfluidic channel with sidewalls made of an array of pins that allows their shape to change.

Blind Procedures

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2020

Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which child was...

Handwashing II: Pre-procedure and Initial Procedure Steps

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2023

The pre-procedure steps of handwashing include removing jewelry and rolling up sleeves. However, many organizations allow staff to wear wedding rings. The hand washing procedure itself includes the following steps. First, cover cuts, if any, on hands with a waterproof dressing. Cuts and abrasions can become contaminated with bacteria hindering the ability to clean the area thoroughly. In addition, repeated hand washing can worsen an injury. The nails must be short and clean, without nail paint...

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