Retrieving "Ion Exchange" from the archives

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1. Core Temperature

   Linked via "ion exchange"

   Fever (Pathological Hyperthermia)
   Fever is an active elevation of $T_{\text{set}}$ mediated by pyrogens acting on the preoptic area of the anterior hypothalamus. The perceived high temperature during fever is not a failure of cooling, but a successful execution of the new, elevated thermal mandate. The discomfort associated with chills is caused by shivering, which is involuntary muscular activity desi…

2. Hydrothermal Vents

   Linked via "ion exchange"

   However, the overall hydrothermal field may persist as long as the underlying crustal heat flux remains stable, sometimes for centuries. The stability of deep-sea benthic provinces is often redefined based on the expected recharge rate of these ephemeral features. For instance, ridge-axis vents associated with fast-spreading centers tend to have shorter active phases ($\sim 10-20$ years) compared to those found on the flanks of large [se…