About: Hypothetical superparamagnetic magnetometer in a pigeon’s upper beak probably does not work

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We reanalysed the role of superparamagnetic magnetite clusters observed in a pigeon’s upper beak to decide if this matter can be a component of some sort of pigeon magnetometer for Earth orientation. We investigated the mutual interaction of the magnetite clusters induced by the geomagnetic field. The force sensitivity of the hypothetical magnetometer in a pigeon’s upper beak was estimated considering the previously presented threshold magnetic sensitivity of pigeons, measured in electrophysiological and behavioural investigations. The typical intercluster magnetic force seems to be 10-19 N well above the threshold magnetic sensitivity. To strengthen our results, we measured the magnetic susceptibility of superparamagnetic magnetite using a vibrating sample magnetometer. Finally we performed theoretical kinematic analysis of the motion of magnetite clusters in cell plasma. The results indicate that magnetite clusters, constituted by superparamagnetic nanoparticles and observed in a pigeon’s upper beak, may not be a component of a measuring system providing the magnetic map. We reanalysed the role of superparamagnetic magnetite clusters observed in a pigeon’s upper beak to decide if this matter can be a component of some sort of pigeon magnetometer for Earth orientation. We investigated the mutual interaction of the magnetite clusters induced by the geomagnetic field. The force sensitivity of the hypothetical magnetometer in a pigeon’s upper beak was estimated considering the previously presented threshold magnetic sensitivity of pigeons, measured in electrophysiological and behavioural investigations. The typical intercluster magnetic force seems to be 10-19 N well above the threshold magnetic sensitivity. To strengthen our results, we measured the magnetic susceptibility of superparamagnetic magnetite using a vibrating sample magnetometer. Finally we performed theoretical kinematic analysis of the motion of magnetite clusters in cell plasma. The results indicate that magnetite clusters, constituted by superparamagnetic nanoparticles and observed in a pigeon’s upper beak, may not be a component of a measuring system providing the magnetic map. (en)
Title	Hypothetical superparamagnetic magnetometer in a pigeon’s upper beak probably does not work Hypothetical superparamagnetic magnetometer in a pigeon’s upper beak probably does not work (en)
skos:prefLabel	Hypothetical superparamagnetic magnetometer in a pigeon’s upper beak probably does not work Hypothetical superparamagnetic magnetometer in a pigeon’s upper beak probably does not work (en)
skos:notation	RIV/61989100:27350/13:86087827!RIV14-MSM-27350___
http://linked.open...avai/predkladatel	Hornicko-geologická fakulta
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(ED1.1.00/02.0070), P(ED2.1.00/03.0082)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Jandačka, Petr Trojková, Jana Alexa, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola báňská - Technická univerzita Ostrava / Hornicko-geologická fakulta
http://linked.open...dnocenehoVysledku	78571
http://linked.open...ai/riv/idVysledku	RIV/61989100:27350/13:86087827
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	magnetoreception, superparamagnetic magnetite, biomineralization (en)
http://linked.open.../riv/klicoveSlovo	magnetoreception superparamagnetic magnetite biomineralization
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[D7338436B99B]
http://linked.open...i/riv/nazevZdroje	European Physical Journal E
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	IT4Innovations Centre of Excellence Institute of clean technologies for mining and utilization of raw materials for energy use
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	36
http://linked.open...iv/tvurceVysledku	Jandačka, Petr Pištora, Jaromír Trojková, Jana Alexa, Petr
http://linked.open...ain/vavai/riv/wos	000318182400009
issn	1292-8941
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1140/epje/i2013-13040-1
http://localhost/t...ganizacniJednotka	27350

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