Results 71 to 80 of about 806,968 (339)

The Impact Of Spike-Frequency Adaptation On Balanced Network Dynamics [PDF]

, 2018
A dynamic balance between strong excitatory and inhibitory neuronal inputs is hypothesized to play a pivotal role in information processing in the brain.
Barranca, Victor J., Huang, Han, , \u2719, Li, Sida, , \u2718   +2 more
core   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Effects of an exercise program on physiological variables and 6 Minute walk test in obesity

Retos: Nuevas Tendencias en Educación Física, Deportes y Recreación
Introduction: Obesity represents a clinical and public health challenge that requires comprehensive, evidence-based strategies. Objective: To describe changes in aerobic capacity and physiological variables in adults with grade II and III obesity ...
Alejandro Segura Ordoñez, Sebastian Yara Muñoz, Nathali Carvajal, David Alexander Lemos Martínez, José Guillermo Ortega, Mildrey Mosquera   +5 more
doaj   +1 more source

Photochemical, Anatomical, and Growth Changes in Cassava Cultivars after Application of Post-Emergent Herbicides

Agriculture, 2022
Plants develop a series of adaptive mechanisms capable of tolerating the action of herbicides; however, little is known about the physiological mechanisms developed by cassava.
Jania Claudia Camilo dos Santos, Renato Nunes Costa, Dayane Mércia Ribeiro Silva, Dougllas Ferreira da Rocha, Lennon Klédson dos Santos Silva, Rudieli Machado da Silva, Marcelo de Almeida Silva, Jessé Marques da Silva Júnior Pavão, José Vieira Silva   +8 more
doaj   +1 more source

Photosynthesis under far‐red light—evolutionary adaptations and bioengineering of light‐harvesting complexes

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, Edoardo Andrea Cutolo, Daniele Montepietra, Claudia Battarra, Roberto Caferri, Stefano Capaldi, Zeno Guardini, Luca Dall'Osto, Roberto Bassi   +8 more
wiley   +1 more source

Combined physical activity in the prevention of cardiovascular diseases: from physiological to molecular adaptation mechanisms

Клиническая практика
Physical activity is recognized as the most important non-medicinal tool for the prevention of cardiovascular diseases, however, the highest efficiency is demonstrated by the programs combining various types of physical load.
Abduragim R. Magomedov, Polina V. Rykova, Bogdan A. Anokhin, Arthur Kh. Melikian, Minas A. Agaronyan, Arina G. Sarkisyan, Ekaterina S. Shimko, Ayshat Yu. Yusupova, Elvina R. Irgalieva, Eset M. Bokova, Rashid S. Mokaev, Darya V. Leonova, Adil Sh. Kendzhametov   +12 more
doaj   +1 more source

A reinforcement learning theory for homeostatic regulation [PDF]

, 2011
Reinforcement learning models address animal’s behavioral adaptation to its changing “external” environment, and are based on the assumption that Pavlovian, habitual and goal-directed responses seek to maximize reward acquisition.
Gutkin, B. S., Keramati, M.
core  

Short-term heat acclimation is effective and may be enhanced rather than impaired by dehydration [PDF]

, 2014
Most heat acclimation data are from regimes longer than 1 week, and acclimation advice is to prevent dehydration. Objectives: We hypothesized that (i) short-term (5-day) heat acclimation would substantially improve physiological strain and exercise ...
Armstrong, Armstrong, Ashenden, Bergeron, Borg, Brandenberger, Brandenberger, Brengelmann, Buono, Buono, Burge, Casa, Casa, Cheung, Convertino, Convertino, Costill, Cotter, Creasy, Dill, Engell, Epstein, Fellman, Fleming, Fortney, Francesconi, Gabai, Gagge, Garrett, Garrett, Garrett, Gisolfi, Gonzalez-Alonso, Gore, Goulet, Graichen, Greenleaf, Harrison, Harrison, Hopkins, Hopper, Horowitz, Horowitz, Hurwitz, Joyner, Judelson, Kay, Kee-Bum, Kenefick, Lorenzo, Maresh, Marshall, McClung, McConell, Merry, Morris, Moseley, Nadel, Nagashima, Nielsen, Njemini, Noakes, Nose, Oehler, Okazaki, Okazaki, Patterson, Patterson, Patterson, Racinais, Ramanathan, Sawka, Sawka, Sawka, Sawka, Schwimmer, Scoon, Senay, Shido, Shvartz, Strydom, Tetievsky, Turk, Wall, Weller, Witney, Wyndham   +86 more
core   +1 more source

Mitochondrial fatty acid oxidation is stimulated by red light irradiation

FEBS Letters, EarlyView.
Light at different wavelengths has distinct effects on keratinocyte viability and metabolism. UVA light abrogates metabolic fluxes. Blue and green light have no effect on metabolic fluxes, while red light enhanced oxidative phosphorylation by promoting fatty acid oxidation. Keratinocytes are the primary constituents of sunlight‐exposed epidermis.
Manuel Alejandro Herrera, Camille C. Caldeira da Silva, Maiza Von Denz, Mauricio S. Baptista, Alicia J. Kowaltowski   +4 more
wiley   +1 more source

The role of fibroblast growth factors in cell and cancer metabolism

FEBS Letters, EarlyView.
Fibroblast growth factor (FGF) signaling regulates crucial signaling cascades that promote cell proliferation, survival, and metabolism. Therefore, FGFs and their receptors are often dysregulated in human diseases, including cancer, to sustain proliferation and rewire metabolism.
Jessica Price, Chiara Francavilla
wiley   +1 more source