This is the 17996th most frequent Russian word.
фиксируют
"Fixируют" means "they fix, record, or capture."
In this sentence, 'фиксируют' refers to the act of scientifically recording or noting observations, emphasizing objectivity and accuracy of data collection.
Учёные фиксируют изменения в климате.
Scientists are recording changes in the climate.
'Фиксируют' here is used to denote catching or detecting movement through technical means, such as cameras or sensors.
Камеры фиксируют движение на дороге.
The cameras capture movement on the road.
In this context, 'фиксируют' expresses the action of noting down or logging personal feelings or experiences, associating the verb with personal reflection and documentation.