The Chapman-Richards Distribution and its Relationship to the Generalized Beta
Background The Chapman-Richards distribution is developed as a special case of the equilibrium solution to the McKendrick-Von Foerster equation. The Chapman-Richards distribution incorporates the vital rate assumptions of the Chapman-Richards growth ...
Jeffrey H. Gove +2 more
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Take my breath away: Defining the oxygen saturation threshold for fish cortisol stress response. [PDF]
Abstract Human activities are affecting the number, size and severity of hypoxic zones in aquatic ecosystems. As oxygen is one of the most important abiotic factors affecting fish biology, exposure to low levels of dissolved oxygen may lead to a reduction in fitness.
Alfonso S +4 more
europepmc +2 more sources
Effect of foot immersion and neck cooling on renal, intestinal, immune and inflammatory markers in older adults exposed to extreme heat. [PDF]
Abstract Older adults with reduced thermoregulatory capabilities are increasingly at risk of heat‐related pathophysiological outcomes (e.g., acute kidney injury, heatstroke) due to increasingly frequent, prolonged and intense heatwaves. Foot immersion and neck cooling have been proposed as practical, non‐electrical cooling strategies for protecting ...
McCarthy T +7 more
europepmc +2 more sources
Forest carbon sequestration on the west coast, USA: Role of species, productivity, and stockability. [PDF]
Forest ecosystems store large amounts of carbon and can be important sources, or sinks, of the atmospheric carbon dioxide that is contributing to global warming.
Paul J Chisholm, Andrew N Gray
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A Systematic Review and Meta-Analysis of Biological Sex Differences in Sleep Spindles and Slow Wave Activity in Adults With and Without Insomnia. [PDF]
ABSTRACT Mounting evidence shows sex‐based differences in sleep experiences and outcomes, including the prevalence of insomnia disorder. However, the impact of biological sex on brain oscillations during sleep remains poorly understood, especially in the context of insomnia disorder. This is a notable gap, given that neurophysiological aspects of sleep
Walsh NA +5 more
europepmc +2 more sources
Nonlinear split-plot design modeling and analysis of rice varieties yield
In this research, a class of nonlinear split plot design models where the mean function of the split-plot model is not linearizable is presented. This was done by fitting intrinsically nonlinear split-plot design (INSPD) models using the Chapman-Richards
I.J. David, O.E. Asiribo, H.G. Dikko
doaj +1 more source
To study the deformation characteristics of crushed gangue under different water content conditions, the confined compaction test of crushed gangue was carried out under five different water content conditions by using a universal material testing ...
Pengfei Liang +4 more
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Composition of live, dead and downed trees in Järvselja old-growth forest
The study area is in the Järvselja Training and Experimental Forest Centre, Estonia. The conservation of Järvselja old-growth forest started in 1924 when the area was excluded from all management activities and left to natural development.
Kangur Ahto +16 more
doaj +1 more source
Verification of three-parameter models of dependence of height on the diameter at breast height for birch stands of the European part of Russia [PDF]
Of great importance when conducting forestry operations and scientific research is the accuracy of determining the height of trees. The height of trees in a particular area is usually calculated using models, where it is a function of diameter at breast ...
A. V. Lebedev, V. V. Kuzmichev
doaj +1 more source
To model dynamic systems in various situations results in an ordinary differential equation of the form dydt=g(y,t,θ), where g denotes a function and θ stands for a parameter or vector of unknown parameters that require estimation from observations.
Óscar Cornejo +3 more
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