Results 61 to 70 of about 13,016 (292)

The morphology of the oval window in Paranthropus robustus compared to humans and other modern primates

The Anatomical Record, EarlyView.
Abstract The oval window (OW) is an opening connecting the inner and middle ear. Its area has been shown to consistently scale with body mass (BM) in primates, and has been used alongside semi‐circular canal (SCC) size to differentiate Homo sapiens and fossil hominins, including Paranthropus robustus.
Ruy Fernandez, José Braga
wiley   +1 more source

Allometric scaling of structural quantities with weight. [PDF]

, 2018
(a) Inner radius, (b) wall thickness, (c) area compliance, (d) axial force, at 100 mmHg and λz = 1.5. All data fit to a power law allometric scaling relationship with the coefficient of determination shown. All values are mean ± STD.
Tarek Shazly (489593), Mohamed A. Mohamed (2938488), John F. Eberth (4821837), David A. Prim (5620976), Brooks A. Lane (5620979), Mark A. Wierzbicki (5620985), Susan M. Lessner (441397), Kelley Poblete (5620982)   +7 more
core   +1 more source

Variation in parrot jaw musculature

The Anatomical Record, EarlyView.
Interspecific morphological differences in some superficial jaw muscles of parrots. Abstract Psittaciformes, the order encompassing parrots and their relatives, are highly diverse and generally known for having a strong beaks used for multiple behaviors. The muscles related to the masticatory apparatus should reflect this functional complexity; however,
Ana Carolina L. Faillace, Arin Berger, Marcelo Ismar S. Santana, Adam Hartstone‐Rose   +3 more
wiley   +1 more source

Benthic biomass size spectra in shelf and deep-sea sediments [PDF]

, 2014
The biomass distributions of marine benthic metazoans (meio- to macro-fauna, 1 µg–32 mg wet weight) across three contrasting sites were investigated to test the hypothesis that allometry can consistently explain observed trends in biomass spectra ...
Kaariainen, J.I., J. I. Kaariainen, Main, C.E., B. J. Bett, Anderson, T.R., C. E. Main, Bett, B.J., Marcinko, C.J., T. R. Anderson, A. Yool, Kelly-Gerreyn, B.A., B. A. Kelly-Gerreyn, Martin, A.P., Yool, A., A. P. Martin, C. J. Marcinko   +15 more
core   +1 more source

Comparative and functional anatomy of masticatory muscles and bite force in opossums (Didelphimorphia, Didelphidae)

The Anatomical Record, EarlyView.
We describe the functional anatomy of masticatory muscles in nine opossums, finding a generalized anatomical pattern with differences related to skull morphology. Variation in quantitative myological data and estimated bite force was mostly related to size, and the increase in bite force supports dietary diversification associated with size increase ...
Juann A. F. H. Abreu, Diego Astúa
wiley   +1 more source

Dynamic carbon allocation trade‐off: A robust approach to model tree biomass allometry

Methods in Ecology and Evolution
Forest above‐ground biomass (AGB) is often estimated by converting the observed tree size using allometric scaling between the dry weight and size of an organism. However, the variations in biomass allocation and scaling between tree crowns and stems due
Mingxia Yang, Xiaolu Zhou, Zelin Liu, Peng Li, Caixia Liu, Huabing Huang, Jiayi Tang, Cicheng Zhang, Ziying Zou, Binggeng Xie, Changhui Peng   +10 more
doaj   +1 more source

Adjusting bone mass for differences in projected bone area and other confounding variables: an allometric perspective. [PDF]

, 2002
The traditional method of assessing bone mineral density (BMD; given by bone mineral content [BMC] divided by projected bone area [Ap], BMD = BMC/Ap) has come under strong criticism by various authors. Their criticism being that the projected bone "area"
Roger L. Holder, Nevill, AM, Holder, Roger, Maffulli, Nicola, Lau, Joseph T. F., Warren T. K. Lee, Lee, WTK, Jack C. Y. Cheng, Nevill, Alan M., Alan M. Nevill, Lee, Warren T. K., Lau, JTF, Joseph T. F. Lau, Maffulli, N, Leung, Sophie S. S. F., Holder, Roger L., Cheng, Jack C. Y., Nicola Maffulli, Cheng, JCY, Leung, SSSF, Sophie S. S. F. Leung   +20 more
core   +1 more source

Functional models from limited data: A parametric and multimodal approach to anatomy and 3D kinematics of feeding in basking sharks (Cetorhinus maximus)

The Anatomical Record, EarlyView.
Abstract Basking sharks, Cetorhinus maximus (Gunnerus, Brugden [Squalus maximus], Det Kongelige Norske Videnskabers Selskabs Skrifter, 1765, vol. 3, pp. 33–49), feed by gaping their mouths and gill slits, greatly reorienting their cranial skeletons to filter food from water.
Tairan Li, Mike Schindler, Martha Paskin, Venkata A. Surapaneni, Elliott Scott, Sabine Hauert, Nicholas Payne, David E. Cade, Jeremy A. Goldbogen, Frederik H. Mollen, Daniel Baum, Sean Hanna, Mason N. Dean   +12 more
wiley   +1 more source

Decoupled scaling relationship between bamboo individual size and leaf morphological characteristics

BMC Plant Biology
Background The relationship between plant individual size and leaf morphology is a fascinating and active area of research in plant functional ecology. However, there is limited information on the scaling relationships between leaf morphology and height ...
Jun Sun, Yunqi He, Jinlong Li, Lina Yu, Baoshi Jin, Hongliang Gu, Dongliang Cheng   +6 more
doaj   +1 more source

Unraveling urban dynamics: Scaling laws of human mobility across the cityscape divide

Fundamental Research
The scaling laws of human mobility are one of the key theories of human geography. They also have important policy implications for urban-rural integration and regional economic growth.
Hongjian Zhao, Pengjun Zhao, Qiyang Liu, Mengzhu Zhang, Shixiong Jiang   +4 more
doaj   +1 more source