Dam System Monitoring
Dam System Monitoring - Related Videos
05:20
Drosophila Activity Monitor (DAM): A Method to Measure Locomotor Activity in Flies
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2023
This video describes the Drosophila activity monitor (DAM) system used to track locomotor activity. Researchers use activity data collected from the DAM to study circadian rhythms in fruit flies. The featured protocol clip shows how to load flies in the device and record activity data for circadian experiments.
01:21
Design Example: Creating a Hydraulic Model of a Dam Spillway
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2025
Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation. Through this controlled setup, researchers can closely examine how water flows over the spillway, supporting a detailed analysis of its performance. A fundamental principle behind these models is using...
09:30
Measurement of Larval Activity in the Drosophila Activity Monitor
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Cited by 10 •
2015
This report describes a method for measuring Drosophila larval activity using the TriKinetics Drosophila Activity Monitor. The device employs infrared beams to detect movements of up to 16 individual animals. Data can be analyzed to represent motion parameters including rates and the positions of the animals within the assay chambers.
02:05
Self-Presentation: Self-Monitoring and Self-Handicapping
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2020
People can go to great lengths to protect their self-image and present themselves in ways that they want others to see them. Sociologist Erving Goffman presented the idea that a person is like an actor on a stage. Calling his theory dramaturgy, Goffman believed that we use “impression management” to present ourselves to others as we hope to be perceived. Each situation is a new scene, and individuals perform different roles depending on who is present (Goffman, 1959). Think about the way you...
01:23
Holter Monitor: 24-Hour Monitoring
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2025
Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...
FAQs
Each interruption of the infrared beam marks a movement event at a recorded time point. By accumulating these events continuously, the system generates an activity profile for each individual fly rather than relying on a single observation. The resulting time-based record allows researchers to examine changes in locomotion and sleep-wake patterns across extended recordings.
Temporal patterns are central to interpreting DAM measurements. Repeated movement records can show when activity rises or falls and help characterize circadian rhythms and sleep-wake organization. This matters because neuroscience experiments can then relate altered behavioral timing to genetic or environmental changes, or to experimental treatments.
Behavioral output provides a whole-animal readout of changes that may originate at molecular or cellular levels. By comparing activity and sleep-wake profiles across experimental groups, neuroscience researchers can investigate how those changes relate to locomotion, circadian organization, or sleep regulation. This links mechanistic findings with observable behavior in the intact animal.
A basic workflow places individual flies in narrow recording tubes positioned so movement interrupts an infrared beam. The system then logs interruptions continuously for the duration of the experiment, preserving a separate behavioral record for each subject. Running many animals in parallel supports quantitative comparison across subjects and experimental conditions.
The method is especially useful when researchers need behavioral measurements across many flies or over long periods. It can support studies of circadian rhythms, sleep regulation, genetic changes, environmental influences, and responses to experimental treatments. These applications make it possible to assess behavioral consequences while maintaining a quantitative record for each animal.
Results are interpreted as time-resolved activity profiles rather than as isolated movement counts. Researchers can examine locomotor activity alongside sleep-wake patterns and compare how these measures vary after a genetic or environmental manipulation or treatment. This approach helps identify whole-animal phenotypes associated with altered neural mechanisms.