Which types of clay minerals fix cesium ions effectively? the "cavity-charge matching effect".

How can radioactive Cs+ ions be removed from aqueous solution? From this perspective, the adsorption of Cs+ was investigated by using five types of clay minerals possessing different charge exchange capacities. The fixation ability for Cs+ depended on the charge exchange capacity of the clay minerals. Phlogopite and vermiculite, where the number of charges is almost equal to half the number of siloxane ditrigonal cavities in the structure, exhibited a strong Cs+ fixation ability among these clay minerals.

Spinal cord herniation into pseudomeningocele after traumatic nerve root avulsion: case report and review of the literature.

We present an extremely rare case of traumatic spinal cord herniation due to a brachial plexus avulsion injury and provide a review of the literature of spinal cord herniation. Spinal cord herniation is an uncommon condition that can occur spontaneously or as a result of surgery or trauma. This condition often presents with symptoms and signs as Brown-Séquard syndrome.

[Epidural hematoma after an epidural block in a patient with no coagulopathy].

We report a case of epidural hematoma after a single epidural block. The patient was a 67-year-old woman with sciatica and osteoarthritis of the spine. She had no coagulopathy.