Slate

Slate is a fine-grained metamorphic rock valued for its durability, low porosity, and ability to split into thin, relatively flat sheets, making it important in construction engineering. It forms when shale or other clay-rich sedimentary rock undergoes low-grade metamorphism, causing minerals such as mica and chlorite to realign and produce a pronounced slaty cleavage. Engineers use slate for roofing, flooring, wall cladding, paving, and architectural features because it combines weather resistance with natural texture and dimensional stability. Material selection requires evaluating thickness, strength, water absorption, freeze-thaw performance, surface finish, and the orientation of cleavage to ensure safe, long-lasting designs.

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Research

JoVE EoE - Cancers of the Nervous System

Repetitive Tumor Challenge Assay: An In Vitro Culture Assay to Evaluate Chimeric Antigen Receptor (CAR) T Cells for Repetitive Tumor Killing Potential

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2025

In this video, we demonstrate the repetitive tumor challenge assay to evaluate the CAR T cells’ repetitive tumor killing potential during high tumor cell loads. Further, the CAR T cells can be analyzed using flow cytometry to determine the different subpopulations of CAR T cells in the sample.

Education

JoVE Science Education - Environmental Sciences

Making a Geologic Cross Section

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2023

Source: Laboratory of Alan Lester - University of Colorado Boulder Geologic maps were first made and utilized in Europe, in the mid-to-late 18th century. Ever since, they have been an important part of geological investigations all around the world that strive to understand rock distributions on the surface of the earth, in the subsurface, and their modification through time. A modern geologic map is a data-rich representation of rocks and rock-structures in a two-dimensional plan view. The...

Mouse Short- and Long-term Locomotor Activity Analyzed by Video Tracking Software

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Cited by 27 •

2013

Locomotor activity (LMA) is a simple and easily performed measurement of behavior in mice. Coupling of video tracking software (VTS) and LMA allows for the improvement of specificity and sensitivity, especially when compared with the manual, line crossing method of LMA analysis. Additionally VTS allows long-term tracking of mouse LMA.

Direct Imaging of ER Calcium with Targeted-Esterase Induced Dye Loading (TED)

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Cited by 60 •

2013

Targeted-esterase induced dye loading (TED) supports the analysis of intracellular calcium store dynamics by fluorescence imaging. The method bases on targeting of a recombinant Carboxylesterase to the endoplasmic reticulum (ER), where it improves the local unmasking of synthetic low-affinity Ca2+ indicator dyes in the ER lumen.

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