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CIRCADIANO [3 records]

Record 1 2020-02-12

English

Subject field(s)
  • Morphology and General Physiology
  • Animal Biology
  • Plant Biology
DEF

A periodic endogenous change occurring in all living organisms, operating independently of daily rhythmical changes in the environment but normally synchronized to the 24-hour light/dark cycle.

CONT

... circadian rhythms are widely held to be endogenous, or innate, to living systems, governed by shadowy physiological mechanisms known as biological clocks.

OBS

Such rhythms occur in the leaf, flower, and growth movements of plants and the changes in body temperature and fluctuations in hormone secretion in animals.

PHR

circadian rhythm high and low points

French

Domaine(s)
  • Morphologie et physiologie générale
  • Biologie animale
  • Biologie végétale
DEF

[Cycle biologique] dont la périodicité est voisine de 24 heures.

PHR

hauts et bas du rythme circadien

Spanish

Campo(s) temático(s)
  • Morfología y fisiología general
  • Biología animal
  • Biología vegetal
DEF

Cambio rítmico de naturaleza bioquímica o biofísica que ocurre en un organismo con periodicidad aproximada de veinticuatro horas.

Save record 1

Record 2 2017-12-22

English

Subject field(s)
  • Human Diseases - Various
  • Nervous System
  • Clinical Psychology
Universal entry(ies)
G47.2
classification system code, see observation
OBS

G47.2: code used in the International Statistical Classification of Diseases and Related Health Problems.

French

Domaine(s)
  • Maladies humaines diverses
  • Système nerveux
  • Psychologie clinique
Entrée(s) universelle(s)
G47.2
classification system code, see observation
OBS

G47.2 : code de la Classification statistique internationale des maladies et des problèmes de santé connexes.

Spanish

Campo(s) temático(s)
  • Enfermedades humanas varias
  • Sistema nervioso
  • Psicología clínica
Entrada(s) universal(es)
G47.2
classification system code, see observation
Save record 2

Record 3 2004-01-29

English

Subject field(s)
  • Biological Sciences
DEF

Designating physiological activity which occurs approximately every twenty-four hours, or the rhythm of such activity.

CONT

Circadian rhythms in animals, unlike plants, are almost always acquired.

CONT

Circadian activity and noise comparisons of two confined groups with or without reference to clock time.

CONT

Both measures revealed highly positive correlations between the mean circadian patterns of the two groups.

OBS

"Circadian" might be applied to all "24 hour" rhythms, whether or not their periods are different from 24 hours, longer or shorter, by a few minutes or hours.

French

Domaine(s)
  • Sciences biologiques
DEF

Se dit de tous les rythmes biologiques apparaissant dans un élevage en conditions constantes dont la périodicité est d'environ 24 h, sans tenir compte de la durée relative du jour et de la nuit.

OBS

Si l'on fait intervenir ce dernier facteur [de la durée relative du jour et de la nuit], on utilise le terme de «nycthéméral» [voir cette autre fiche dans TERMIUM].

CONT

Une approche autécologique met en évidence l'importance de certains facteurs abiotiques sur les activités non rythmiques et sur les activités circadiennes et circanniennes des animaux sauvages.

OBS

Si la période est inférieure à 20 h ou supérieure à 28 h, on parlera de rythme «ultradien» ou de rythme «infradien».

Spanish

Campo(s) temático(s)
  • Ciencias biológicas
DEF

[Dícese del] fenómeno biológico de duración de unas 24 horas.

Save record 3

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