Chernobyl Lava

Chernobyl lava is a glassy, rock-like form of corium, the radioactive material produced when nuclear fuel and reactor components melt during a severe reactor accident. At Unit 4, extreme heat fused uranium-containing fuel with zirconium, concrete, sand, and other structural materials; the molten mixture flowed into lower rooms and cooled into chemically heterogeneous silicate masses such as the well-known Elephant’s Foot. Its mineral composition, corrosion, radionuclide distribution, and interaction with air and water help scientists assess long-term radioactivity, material stability, and environmental release. Studying Chernobyl lava also informs radioactive-waste management, reactor decommissioning, and strategies for future severe-accident response.

Chernobyl Lava - Related Videos

Research

JoVE Journal - Neuroscience

Visualization of Larval Segmental Nerves in 3rd Instar Drosophila Larval Preparations

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Cited by 13 •

2010

Drosophila melanogaster larvae provide an ideal model system to investigate the mechanisms of axonal transport within larval segmental nerves. Using this procedure, 3rd instar larvae carrying various mutations can be compared to wild type larvae.

Education

JoVE Science Education - Environmental Sciences

Igneous Volcanic Rock

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2023

Source: Laboratory of Alan Lester - University of Colorado Boulder Igneous rocks are the products of cooling and crystallization of magma. Volcanic rocks are a particular variety of igneous rock, forming as a consequence of magma breaching the surface, then cooling and crystallizing in the subaerial environment. Magma is molten rock that typically ranges in temperature from approximately 800 °C to 1,200 °C (Figure 1). Magma itself is produced within the Earth via three primary melting...

Optogenetic Activation of Zebrafish Somatosensory Neurons using ChEF-tdTomato

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Cited by 6 •

2013

Optogenetic techniques have made it possible to study the contribution of specific neurons to behavior. We describe a method in larval zebrafish for activating single somatosensory neurons expressing a channelrhodopsin variant (ChEF) with a diode-pumped solid state (DPSS) laser and recording the elicited behaviors with a high-speed video camera.

Research

JoVE Journal - Biology
Free Sample

In vivo Imaging of Intact Drosophila Larvae at Sub-cellular Resolution

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Cited by 21 •

2010

This protocol describes a reliable method for anesthetization and imaging of intact Drosophila melanogaster larvae. We have utilized the volatile anesthetic desflurane to allow for repetitive imaging at sub-cellular resolution and re-identification of structures for up to a few days1.

Morphological Analysis of Drosophila Larval Peripheral Sensory Neuron Dendrites and Axons Using Genetic Mosaics

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Cited by 16 •

2011

The dendritic arborization sensory neurons of the Drosophila larval peripheral nervous system are useful models to elucidate both general and neuron class-specific mechanisms of neuron differentiation. We present a practical guide to generate and analyze dendritic arborization neuron genetic mosaics.

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