Results 101 to 110 of about 33,418 (233)

Topographic aspects of photic driving in the electroencephalogram of children and adolescents

open access: yesBrazilian Journal of Medical and Biological Research, 2004
The electroencephalogram amplitude spectra at 11 fixed frequencies of intermittent photic stimulation of 3 to 24 Hz were combined into driving "profiles" for 14 scalp points in 8 male and 7 female normal subjects aged 9 to 17 years.
Lazarev V.V.   +3 more
doaj  

Communications Biophysics [PDF]

open access: yes, 1965
Contains a summary of research publications and reports on four research projects.National Science Foundation (Grant GP-2495)National Institutes of Health (Grant MH-04737-04)National Aeronautics and Space Administration (Grant NsG ...
Barlow, J. S.   +6 more
core  

Targeting Circadian Rhythm for the Regulation of Skin Collagen Metabolism

open access: yesJournal of Cosmetic Dermatology, Volume 25, Issue 1, January 2026.
ABSTRACT Background Collagen is essential for maintaining skin structure and function, and the circadian rhythm is known to regulate a wide range of physiological processes. Aims To investigate whether collagen metabolism in human skin fibroblasts exhibits circadian regulation, and to evaluate whether the time‐coordinated application of baicalin at ...
Cheng Wang   +14 more
wiley   +1 more source

Bioelectric signal analysis and measurement [PDF]

open access: yes
Nonstationary time series techniques are used to analyze EEG signals for the estimation of alertness. A time varying order is extracted in sequential time series measurement of these data and strategies are devised for obtaining optimal representation of
Lai, D. C.
core   +1 more source

Flicker-light induced visual phenomena: Frequency dependence and specificity of whole percepts and percept features [PDF]

open access: yes, 2011
Flickering light induces visual hallucinations in human observers. Despite a long history of the phenomenon, little is known about the dependence of flicker-induced subjective impressions on the flicker frequency.
Allefeld, C.   +3 more
core   +1 more source

Preliminary trial of photic stimulation for premenstrual syndrome

open access: yesJournal of Obstetrics and Gynaecology, 1997
In an open study 17 women with confirmed, severe and long-standing premenstrual syndrome used photic stimulation with a flickering red light, every day for up to four menstrual cycles. At the end of treatment prospectively recorded median luteal symptom scores were reduced by 76% (95% confidence interval 54-93, P < 0.001), with clinically and ...
D J, Anderson, N J, Legg, D A, Ridout
openaire   +2 more sources

Communications Biophysics [PDF]

open access: yes, 1962
Contains research objectives and reports on four research projects.National Science Foundation (Grant G-16526)National Science Foundation (Grant G-7364)National Institutes of Health (Grant MP-4737)U.S.
Barlow, J. S.   +4 more
core  

Video-game epilepsy: a European study. [PDF]

open access: yes, 1999
Epilepsia. 1999;40 Suppl 4:70-4. Video-game epilepsy: a European study. Kasteleijn-Nolst Trenité DG, da Silva AM, Ricci S, Binnie CD, Rubboli G, Tassinari CA, Segers JP. Stichting Epilepsie Instellingen Nederland, Heemstede, The Netherlands.
BINNIE, C.D.   +6 more
core   +1 more source

Determination of water quality in lakes by biological indices [PDF]

open access: yes, 1980
Some problems of evaluation of water quality by biological indices which can be applied in the practice of ecological monitoring on water bodies are considered in this report.
Nikolaev, I.I.
core  

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