Results 71 to 80 of about 762,583 (213)

Aerobic evaluation in soccer.

open access: yesRevista Brasileira de Cineantropometria e Desempenho Humano, 2011
Physical assessments are fundamental for the control and improvement of the performance of soccer players. In this respect, field and laboratory tests are commonly used to evaluate physical fitness in this sports modality.
Juliano Fernandes Da Silva   +2 more
doaj   +1 more source

Influence of irrigation conditions in the germination of plasma treated Nasturtium seeds [PDF]

open access: yes, 2018
Plasma treatments had emerged as a useful technique to improve seed germination. In this work we investigate the influence of different irrigation conditions and plasma treatments on the germination of nasturtium seeds.
Espinós Manzorro, Juan Pedro   +5 more
core   +1 more source

New horizons for aerobic fitness normalization in children: Breaking the paradigm

open access: yesRevista Brasileira de Cineantropometria e Desempenho Humano, 2014
Traditional methods to normalize aerobic fitness (VO2max) have been considered inadequate for not properly adjusting the effects of body size in children, adolescents and adults.
Giovani dos Santos Cunha   +2 more
doaj   +1 more source

Studies on electrochemical formation and reduction of oxide films on noble and transition metals Interim report [PDF]

open access: yes
Surface oxidation of Pt electrodes in pure solutions and resolution of various stages of oxygen uptake by Pt ...
Kozlowska, H. A., Sharp, W.
core   +1 more source

Nitrification amplifies the decreasing trends of atmospheric oxygen and implies a larger land carbon uptake [PDF]

open access: yes, 2007
[1] Atmospheric O-2 trend measurements are used to partition global oceanic and land biotic carbon sinks on a multiannual basis. The underlying principle is that a terrestrial uptake or release of CO2 is accompanied by an opposite flux of O-2.
Bopp, L   +4 more
core   +2 more sources

A model of heart rate kinetics in response to exercise

open access: yes, 2008
We present a mathematical model, in the form of two coupled ordinary differential equations, for the heart rate kinetics in response to exercise. Our heart rate model is an adaptation of the model of oxygen uptake kinetics of Stirling: a physiological ...
Refoyo Román, Ignacio   +3 more
core   +1 more source

Metabolic Changes Following Perinatal Asphyxia: Role of Astrocytes and Their Interaction with Neurons [PDF]

open access: yes, 2016
Perinatal Asphyxia (PA) represents an important cause of severe neurological deficits including delayed mental and motor development, epilepsy, major cognitive deficits and blindness.
Barreto, George E.   +5 more
core   +1 more source

Effects of verbal encouragement on performance of the multistage 20 m shuttle run

open access: yesActa Scientiarum. Health Sciences, 2015
Exertion tests for predicting maximal oxygen uptake (VO2) intend to estimate the person maximum performance. Some articles mention the verbal encouragement in their protocol to reach it, while others do not.
José Marinho Dias Neto   +5 more
doaj   +1 more source

Improving control of duponchelia fovealis (Lepidoptera: Pyralidae) by rooting media related strategies [PDF]

open access: yes, 2009
Soil-dwelling predatory mites can be very effective as biological control agents against larvae of the lepidopteral pest Duponchelia fovealis. Some growing media were reported to have natural high level and stable populations of predatory mite.
Blok, C., Messelink, G.J.
core   +2 more sources

Dynamic regulation of erythropoiesis: A computer model of general applicability [PDF]

open access: yes
A mathematical model for the control of erythropoiesis was developed based on the balance between oxygen supply and demand at a renal oxygen detector which controls erythropoietin release and red cell production.
Leonard, J. I.
core   +1 more source

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