Results 31 to 40 of about 13,016 (292)

Abnormal cortical development after premature birth shown by altered allometric scaling of brain growth. [PDF]

, 2006
BACKGROUND: We postulated that during ontogenesis cortical surface area and cerebral volume are related by a scaling law whose exponent gives a quantitative measure of cortical development.
Ajayi-Obe, M., Nadeem Saeed, Allsop, J. M., Boardman, J., Kennea, N, Morenike Ajayi-Obe, Dyet, L., Jaroslav Stark, Frances Cowan, Saeed Nadeem, Philip Duggan, Allsop Joanna M, Counsell, S. J.; id_orcid, Kennea, N., Ajayi-Obe Morenike, Stark, J., Edwards, AD, Cowan, F, Mary A Rutherford, Joanna M Allsop, Dyet Leigh, Counsell Serena J, Counsell, SJ, Stark, J, Kennea Nigel, Duggan Philip, Maalouf, E, Allsop, JM, Kapellou, O, Jo Hajnal, Leigh Dyet, Rutherford, M. A., Rutherford, MA, Duggan, P., Edwards, A. D.; id_orcid, Ajayi-Obe, M, Maalouf Elia, A David Edwards, Maalouf, E., Boardman James, Cowan, F., Hajnal, J.; id_orcid, Saeed, N, Dyet, L, James Boardman, Cowan Frances, Edwards A. David, Duggan, P, Rutherford Mary A, Hajnal Jo, Elia Maalouf, Olga Kapellou, Kapellou, O., Serena J Counsell, Saeed, N., Hajnal, J, Stark Jaroslav, Boardman, J, Nigel Kennea, Kapellou Olga   +59 more
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Biomass allometric models for Larix rupprechtii based on Kosak’s taper curve equations and nonlinear seemingly unrelated regression

Frontiers in Plant Science, 2023
The diameter at breast height (DBH) is the most important independent variable in biomass allometry models based on metabolic scaling theory (MST) or geometric theory. However, the fixed position DBH can be misleading in its use of universal scaling laws
Dongzhi Wang, Zhidong Zhang, Dongyan Zhang, Xuanrui Huang   +3 more
doaj   +1 more source

Scaling and allometry in the building geometries of Greater London [PDF]

, 2008
Many aggregate distributions of urban activities such as city sizes reveal scaling but hardly any work exists on the properties of spatial distributions within individual cities, notwithstanding considerable knowledge about their fractal structure.
D. Smith, Smith, D, Batty, M, Milton, R, R. Carvalho, Hudson-Smith, A, Carvalho, R, Steadman, P, A. Hudson-Smith, P. Steadman, M. Batty, R. Milton   +11 more
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Effects of climate, biotic factors, and phylogeny on allometric relationships: testing the metabolic scaling theory in plantations and natural forests across China

Forest Ecosystems, 2020
Background Metabolic scaling theory (MST) is still in debate because observed allometric exponents often deviate from MST predictions, and can change significantly depending on environment, phylogeny, and disturbance.
Han Sun, Xiangping Wang, Dayong Fan
doaj   +1 more source

A New General Allometric Biomass Model [PDF]

, 2011
To implement monitoring and assessment of national forest biomass, it is becoming the trend to develop generalized single-tree biomass models suitable for large scale forest biomass estimation.
Wei Sheng Zeng, Shou Zheng Tang
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Nutrient‐dependent allometric plasticity in a male‐diphenic mite

Ecology and Evolution, 2022
Male secondary sexual traits often scale allometrically with body size. These allometries can be variable within species and may shift depending on environmental conditions, such as food quality.
Flor T. Rhebergen, Kathryn A. Stewart, Isabel M. Smallegange   +2 more
doaj   +1 more source

Scaling Peak Oxygen Consumption for Body Size and Composition in People With a Fontan Circulation

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2022
Background Peak oxygen consumption (peak V̇O2$$ \dot{\mathrm{V}}{\mathrm{O}}_2 $$) is traditionally divided (“ratio‐scaled”) by body mass (BM) for clinical interpretation.
Curtis A. Wadey, Alan R. Barker, Graham Stuart, Derek L. Tran, Karina Laohachai, Julian Ayer, Rachael Cordina, Craig A. Williams   +7 more
doaj   +1 more source

Effect of temperature and glia in brain size enlargement and origin of allometric body-brain size scaling in vertebrates [PDF]

, 2014
Background: Brain signaling requires energy. The cost of maintaining and supporting energetically demanding neurons is the key constraint on brain size.
Feng, Jianfeng, Jianfeng Feng, Sachdev, Robert, Karbowski, Jan, Yu, Yuguo, Jan Karbowski, Yuguo Yu, Robert NS Sachdev   +7 more
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Ecological and evolutionary implications of allometric growth in stomach size of brachyuran crabs. [PDF]

PLoS ONE, 2018
Individual characteristics often scale allometrically with organismal body size and the form of this scaling can be influenced by ecological and evolutionary factors. Examining the specific form of this scaling can therefore yield important insights into
Blaine D Griffen, Zachary J Cannizzo, Mustafa R Gül   +2 more
doaj   +1 more source

Allometric scaling in biological and ecological systems [PDF]

, 2022
Several biological variables (such as lifespan, metabolic rate, biomass production rate) were observed to depend on body mass through a simple power law, a phenomenon known as allometric scaling.
Marcato, Davide
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