Results 71 to 80 of about 1,354,268 (327)
Frontiers in Neurology, 2012 Solar radiation and ambient temperature have acted as selective physical forces among populations and thereby guided species distributions in the globe.
Timo ePartonen, Timo ePartonen
doaj +1 more source
FEBS Letters, EarlyView.Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer +7 more
wiley +1 more source
Time-Domain Evaluation Method for Clock Frequency Stability Based on Precise Point Positioning
IEEE Access, 2019 The Global Navigation Satellite System (GNSS) and GNSS receivers can be used to measure the time-frequency errors of receiver clocks so as to evaluate their frequency stability. The calculation of receiver clock error by single point positioning (SPP) is
Yang Lei +4 more
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Circadian clock protein BMAL1 regulates IL-1β in macrophages via NRF2
Proceedings of the National Academy of Sciences of the United States of America, 2018 Significance The molecular clock provides an anticipatory mechanism, allowing organisms to prepare and respond to daily changes in the external environment.
James O. Early +17 more
semanticscholar +1 more source
Organoids in pediatric cancer research
FEBS Letters, EarlyView.Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley +1 more source
Circadian Control of Inflammasome Pathways: Implications for Circadian Medicine
Frontiers in Immunology, 2020 The innate immune system senses “non-self” molecules derived from pathogens (PAMPs) as well as endogenous damage-associated molecular patterns (DAMPs) and promotes sterile inflammation that is necessary for injury resolution, tissue repair/regeneration ...
Benoit Pourcet, Hélène Duez
doaj +1 more source
Synchronization tracking in pulse position modulation receiver [PDF]
, 1987 A clock pulse generator for decoding pulse position modulation in an optical communication receiver is synchronized by a delay tracking loop which multiplies impulses of a data pulse by the square wave clock pulses from the generator to produce positive ...
Vilnrotter, Victor A.
core +1 more source
FEBS Letters, EarlyView.Phototrophs evolved light‐harvesting systems adapted for efficient photon capture in habitats enriched in far‐red radiation. A subset of eukaryotic pigment‐binding proteins can absorb far‐red photons via low‐energy chlorophyll states known as red forms.
Antonello Amelii +8 more
wiley +1 more source
Autobiografia, 2021 The author briefly justifies the concept of chronopoetics. He refers to Lec’s aphorism, to Aleksander Wat’s poetry and his autobiographical prose. Chronopoetics exposes the clock as an object presented in literature and as a carrier of philosophical ...
JERZY MADEJSKI
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Time in the theory of relativity: on natural clocks, proper time, the clock hypothesis, and all that [PDF]
, 2017 When addressing the notion of proper time in the theory of relativity, it is usually taken for granted that the time read by an accelerated clock is given by the Minkowski proper time.
Valente, Mario Bacelar
core