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Journal Bearings01:23

Journal Bearings

Journal bearings are mechanical components that support and provide lateral stability to rotating shafts and axles. They are crucial in reducing friction, wear, and vibration in machinery such as engines, turbines, and pumps. The principle behind journal bearings is forming a thin lubricant film between the bearing surface and the rotating shaft, which minimizes direct contact and reduces frictional forces.
To better understand the concept of journal bearings, consider a rope winch with dry or...
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Transcriptomic Analysis of Human Retinal Surgical Specimens Using jouRNAl10:32

Transcriptomic Analysis of Human Retinal Surgical Specimens Using jouRNAl

We used retinal samples from retinectomy for a transcriptomic analysis of retinal detachment. We developed a procedure that allows RNA conservation between the surgical blocks and the laboratory. We standardized a protocol to purify RNA by cesium chloride ultracentrifugation to assure that the purified RNAs are suitable for microarray...
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Design Example: Alignment of a Road Line Using GIS01:17

Design Example: Alignment of a Road Line Using GIS

The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
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A Mouse Model of the Cornea Pocket Assay for Angiogenesis Study06:13

A Mouse Model of the Cornea Pocket Assay for Angiogenesis Study

The cornea is unique in that it lacks vascular tissues. However, robust blood vessel growth and survival can be induced in the cornea by potent angiogenic factors. Therefore, the cornea can provide with us a valuable tool for angiogenic studies. This protocol demonstrates how to perform the mouse model of cornea pocket assay and how to assess the angiogenesis induced by angiogenic factors using this...
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A Hemocyte Disturbance Assay to Assess Hemocyte Re-Adhesion to Hematopoietic Pockets02:19

A Hemocyte Disturbance Assay to Assess Hemocyte Re-Adhesion to Hematopoietic Pockets

This video demonstrates the hemocyte disturbance assay, evaluating hemocyte re-adhesion in Drosophila larvae's hematopoietic pockets. Mechanical disturbance releases resident hemocytes, elevating circulating hemocyte counts. Post-recovery, re-adherence of resident hemocytes is confirmed, illustrating...
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Sustainable Development01:43

Sustainable Development

As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
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