National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Circadian rhythms in human life - elaboration of the topic with elements of the flipped classroom teaching method
Křivohlavá, Tereza ; Mourek, Jan (advisor) ; Manková, Denisa (referee)
The thesis deals with an alternative teaching method called the flipped classroom, which was applied in the practical part to the topic of the biology of circadian rhythms. In the flipped classroom method, the phases of teaching are switched. Study material is created for the students and presented to them for home study before the class. In the actual teaching, there is then more time for clarifying ambiguities or consolidating material, which is the main advantage of the flipped classroom. Circadian rhythms are biorhythms repeating with a period of approximately 24 hours. The circadian system is controlled by the central circadian clock in the suprachiasmatic nuclei of the hypothalamus. These circadian clocks are synchronized by environmental stimuli, predominantly light. In the case of irregular artificial lighting, the body's circadian clock desynchronizes and disturbances in mood, cognitive performance, or physical health can occur. In the frame of the practical part of the thesis, a video was created to introduce students to the topic of circadian rhythms. In addition, worksheet assignments were created to practice and deepen students' knowledge of biological rhythms, as well as the design of an entire teaching unit with flipped classroom elements. Everything was tested on 4 groups of the...
Impact of light on cognition and mood
Křivohlavá, Tereza ; Bendová, Zdeňka (advisor) ; Růžička, Jiří (referee)
Circadian rhythms are cyclically repeating biorhythms with an approximate period of 24 hours. The main circadian pacemaker located in the suprachiasmatic nuclei in the hypothalamus controls the correct timing of physiological processes and behaviors and works to synchronize the whole body into a single period. The circadian clock works correctly if the period and phase are adjusted daily by environmental stimuli consistent with the solar cycle. The alternation of light and dark is the primary synchronizer of circadian rhythms and one that people mostly do not adhere nowadays. At nighttime they are usually exposed to strong lights while during the daytime they spend many hours in a dark room without receiving enough (sun)light. This disruption of biological and environmental clocks causes the desynchronization of the organism and the periodic misalignment of physiological or mental processes in the body. Long lasting desynchronization could have a serious impact on the human body, including emotions and cognitive functions.

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