{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:36:17Z","timestamp":1760243777682,"version":"build-2065373602"},"reference-count":25,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2011,1,14]],"date-time":"2011-01-14T00:00:00Z","timestamp":1294963200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Entropy"],"abstract":"<jats:p>In employing MaxEnt, a crucial role is assigned to the reciprocity relations that relate the quantifier to be extremized (Shannon\u2019s entropy S), the Lagrange multipliers that arise during the variational process, and the expectation values that constitute the a priori input information. We review here just how these ingredients relate to each other when the information quantifier S is replaced by Fisher\u2019s information measure I. The connection of these proceedings with thermodynamics constitute our physical background.<\/jats:p>","DOI":"10.3390\/e13010184","type":"journal-article","created":{"date-parts":[[2011,1,14]],"date-time":"2011-01-14T11:31:47Z","timestamp":1295004707000},"page":"184-194","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Extreme Fisher Information, Non-Equilibrium Thermodynamics and Reciprocity Relations"],"prefix":"10.3390","volume":"13","author":[{"given":"Silvana","family":"Flego","sequence":"first","affiliation":[{"name":"Instituto de Fisica (IFLP), Universidad Nacional de La Plata, C.C. 727, 1900 La Plata, Argentina"},{"name":"Departamento de Ciencias Basicas, Universidad Nacional de La Plata, Fac. de Ingenieria, 1900 La Plata, Argentina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Felipe","family":"Olivares","sequence":"additional","affiliation":[{"name":"Departamento de Fisica, Universidad Nacional de La Plata, Fac. 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