Results 51 to 60 of about 1,240,084 (305)

Evolutionary cycles of light

, 1982
The mysteries of reflected and refracted solar light phenomena integrated with geometry and the technology of the 20th century are the major focus of the work in this thesis. It is concerned with the metaphysical and personal aspects of universal cyclic solar light used in ancient ritual and medieval theology, integrated with the contemporary external ...
Anderson, Loraine Lundquist, author, Berland, John C., advisor, Wassell, Harold J., committee member, Getty, Nilda C., committee member, Henre, James, committee member, Cantrell, Carol H., committee member   +5 more
openaire   +1 more source

Shedding light on manganese cycling in the early oceans [PDF]

Proceedings of the National Academy of Sciences, 2020
Agreement is often in short supply within the community of researchers asking questions about Earth’s earliest history. One exception, however, is the near-consensus view that oxygen (O2) was mostly absent from the atmosphere and oceans before about 2.4 to 2.3 Ga—the so-called Great Oxidation Event (GOE).
Timothy W. Lyons, Charles W. Diamond, Kurt O. Konhauser   +2 more
openaire   +2 more sources

Behavioral alterations induced by absence of circadian light rhythm: effects of constant light or constant dark on depression-like behaviors and locomotor activity in rats

Bioscience Journal, 2015
Affective disorders have been linked to abnormal biological rhythms. Depression- and anxiety-related behaviors can be altered following changes of daily periods of environmental light.
Macelo Tadeu Marin, Túlio Teixeira Araújo, Marina Monteiro Figueiredo Rezende, Renata Ribeiro-Barbosa   +3 more
doaj   +3 more sources

Towards single-cycle attosecond light from accelerators [PDF]

, 2019
The Free-Electron Laser (FEL) is a cutting-edge, accelerator-based instrument that has the potential to provide simultaneous access to the spatial and temporal resolution of the atomic world. In a FEL, ultra-short electron bunches from an accelerator are
Dunning, David, Thompson, Neil, McNeil, Brian W. J., Goryashko, Vitaliy, Shamuilov, Georgii, Salén, Peter   +5 more
core  

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

TadGAN-Based Daily Color Temperature Cycle Generation Corresponding to Irregular Changes of Natural Light

Sensors, 2022
This study to develop lighting is advanced for reproducing natural light color temperature beneficial to humans. Methods were introduced to provide daily color temperature cycles through formulas based on the measured natural light characteristics or ...
Seung-Taek Oh, Deog-Hyeon Ga, Jae-Hyun Lim   +2 more
doaj   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

FEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Sleep deprivation in bright and dim light: antidepressant effects on major depressive disorder [PDF]

, 1990
Twenty-three patients with a major depressive disorder were deprived of a night’s sleep twice weekly, one week staying up in the dimly lit living room of the ward (< 60 lux), and one week in a brightly lit room (> 2000 lux).
Bouhuys, A.L., Beersma, D.G.M., Hoofdakker, R.H. van den,, Hoofdakker, R.H. van den, Bouhuys, A.L.,, Burg, W. van den, Beersma, D.G.M.,, Burg, W. van den,   +7 more
core   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Lighting Patterns Regulate Flowering and Improve the Energy Use Efficiency of Calendula Cultivated in Plant Factories with Artificial Lighting

Agriculture
Calendula is an edible flower with highly beneficial bioactive compounds for human health. Environmental factors such as light influence flower yield and quality.
Maitree Munyanont, Na Lu, Dannisa Fathiya Rachma, Thanit Ruangsangaram, Michiko Takagaki   +4 more
doaj   +1 more source