Results 31 to 40 of about 726,001 (302)
Digestive and locomotor capacity show opposing responses to changing food availability in an ambush predatory fish [PDF]
, 2018 Metabolic rates vary widely within species, but little is known about how variation in the “floor” (i.e. standard metabolic rate in ectotherms; SMR) and “ceiling” (maximum metabolic rate; MMR) for an individual's aerobic scope (AS) are linked with the ...
Ali +67 more
core +1 more source
Cortical cell size regulates root metabolic cost
The Plant Journal, 2023 AbstractIt has been hypothesized that vacuolar occupancy in mature root cortical parenchyma cells regulates root metabolic cost and thereby plant fitness under conditions of drought, suboptimal nutrient availability, and soil mechanical impedance. However, the mechanistic role of vacuoles in reducing root metabolic cost was unproven.
Jagdeep Singh Sidhu, Jonathan P. Lynch
openaire +2 more sources
Oxidative Stress Is a Potential Cost of Synchronous Nesting in Olive Ridley Sea Turtles
Antioxidants, 2022 Olive ridley sea turtles, Lepidochelys olivacea, exhibit a polymorphic reproductive behavior, nesting solitarily or in mass aggregations termed “arribadas”, where thousands of individuals nest synchronously.
B. Gabriela Arango +8 more
doaj +1 more source
A physical model of cell metabolism [PDF]
, 2018 Cell metabolism is characterized by three fundamental energy demands: to sustain cell maintenance, to trigger aerobic fermentation and to achieve maximum metabolic rate.
Fernandez-de-Cossio-Diaz, Jorge +1 more
core +2 more sources
Mechanical work performed by individual limbs of transfemoral amputees during step-to-step transitions: Effect of walking velocity [PDF]
, 2014 The greater metabolic demand during the gait of people with a transfemoral amputation limits their autonomy and walking velocity. Major modifications of the kinematic and kinetic patterns of transfemoral amputee gait quantified using gait analysis may ...
BONNET, Xavier +4 more
core +5 more sources
The cost of efficiency in energy metabolism [PDF]
Proceedings of the National Academy of Sciences, 2013 In a universe being dragged into disorder by the second law of thermodynamics, living cells must expend energy to maintain their complex organization. In addition to providing a carbon source for biosynthesis, the classical Embden–Meyerhof–Parnas (EMP) and Entner-Doudoroff (ED) pathways help to satisfy this energetic demand by generating ATP during ...
Arion I, Stettner, Daniel, Segrè
openaire +2 more sources
ToxinsPlants store chemical defenses that act as toxins against herbivores, such as toxic isothiocyanates (ITCs) in Brassica plants, hydrolyzed from glucosinolate (GLS) precursors.
Suman Chakraborty, Stefan Schuster
doaj +1 more source
Energy cost differences between marathon runners and soccer players: Constant versus shuttle running
Frontiers in Physiology, 2023 Purpose: In the last decades, the energy cost assessment provided new insight on shuttle or constant running as training modalities. No study, though, quantified the benefit of constant/shuttle running in soccer-players and runners. Therefore, the aim of
Johnny Padulo +10 more
doaj +1 more source
Biomechanical mechanisms underlying exosuit-induced improvements in walking economy after stroke [PDF]
, 2018 Stroke-induced hemiparetic gait is characteristically asymmetric and metabolically expensive. Weakness and impaired control of the paretic ankle contribute to reduced forward propulsion and ground clearance—walking subtasks critical for safe and ...
Awad, L.N. +7 more
core +1 more source
Development and Testing of a Novel Arm Cranking-Powered Watercraft
Frontiers in Physiology, 2017 There is a lack of human-powered watercrafts for people with lower-body disabilities. The purpose of this study was therefore to develop a watercraft for disabled people and investigate the metabolic cost and efficiency when pedaling.
Thomas Fuglsang +6 more
doaj +1 more source