Agitator Trucks

Agitator trucks are specialized vehicles that transport and continuously mix fresh concrete, helping preserve its uniformity and workability between a batching plant and a construction site. A rotating drum uses angled internal blades to tumble the concrete, preventing segregation and premature setting while the truck travels; drum speed and rotation direction can be adjusted for mixing or discharge. In engineering, these trucks support the reliable placement of concrete for foundations, bridges, roads, buildings, and other large structures. Their mobile mixing capacity improves material consistency, reduces handling steps, and helps coordinate concrete delivery with demanding construction schedules.

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Research

JoVE Journal - Biology

Capturing Cytoskeleton-Based Agitation of the Mouse Oocyte Nucleus Across Spatial Scales

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Cited by 2 •

2024

This protocol provides an experimental framework to document the physical impact of the cytoskeleton on nuclear shape and the internal membrane-less organelles in the mouse oocyte system. The framework can be adapted for use in other cell types and contexts.

Education

JoVE Science Education - Psychology

Multiple Object Tracking

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2023

Source: Laboratory of Jonathan Flombaum—Johns Hopkins University In a staggeringly complex and engaging world, it is crucial to selectively process some stimuli at the expense of others. Experimental psychologists call this ability attention. Specifically, visual attention refers to the ability to selectively process aspects of a visual scene. Many paradigms used to study visual attention involve brief, punctuated, and repeated trials. However, everyday situations often place sustained demands...

Research

JoVE Journal - Medicine
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Eye Tracking Young Children with Autism

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Cited by 92 •

2012

Eye tracking has long been used to study gaze patterns in typically-developing individuals, but recent technological advancements have made its use with clinical populations, including autism, more feasible. While eye-tracking young children with autism can offer insight into early symptom manifestations, it involves methodological challenges. Suggestions for best practices are provided.

Eye Tracking in Cognitive Experiments

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2023

Eye tracking as the name suggests involves tracking of eye-movements. It is a non-invasive, sensitive tool that quantifies and measures eye-movements to describe an individuals' cognitive state. An eye-movement between two fixation points is called a saccade, which is one of the fastest motor movements in our body. By observing the profiles of these eye movements, scientists can better understand neural deficits in patients with cognitive impairments. In this video, we will first look at an...

C. elegans Tracking and Behavioral Measurement

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Cited by 13 •

2012

We have developed a video-rate tracking microscope system that can record and quantify C. elegans behavior at high resolution and high speeds. We have also developed computational methods to reduce the dimensionality of the worm images to a fundamental set of measurements that completely describe the shape of the worm.

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