The Experts below are selected from a list of 232608 Experts worldwide ranked by ideXlab platform
D. G. Lindburg - One of the best experts on this subject based on the ideXlab platform.
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morphometric data for adult lion tailed macaques macaca silenus
American Journal of Physical Anthropology, 1991Co-Authors: N. C. Harvey, A. S. Clarke, D. G. LindburgAbstract:Basic morphometric data were collected from 22 adult lion-tailed macaques (M. silenus) of both sexes. M. silenus is a rare primate species from which adequate morphometric data have not heretofore been available for comparative purposes. Data collected include measures of gross body size (weight; crown-rump and rump-heel length), and for males, measures of secondary sexual characteristics (canine tooth and testes size). Degree of sexual dimorphism was marked, with males significantly larger and heavier than females. The three body size measures were correlated for males but not for females. There was substantial variation among individual males in secondary sex characteristics measurements. The data indicate than lion-tailed macaque Morphometrics are consonant with the general pattern of positive allometry for body size and sexual dimorphism characteristic of the primate order.
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Morphometric data for adult lion‐tailed macaques (Macaca silenus)
American journal of physical anthropology, 1991Co-Authors: N. C. Harvey, A. S. Clarke, D. G. LindburgAbstract:Basic morphometric data were collected from 22 adult lion-tailed macaques (M. silenus) of both sexes. M. silenus is a rare primate species from which adequate morphometric data have not heretofore been available for comparative purposes. Data collected include measures of gross body size (weight; crown-rump and rump-heel length), and for males, measures of secondary sexual characteristics (canine tooth and testes size). Degree of sexual dimorphism was marked, with males significantly larger and heavier than females. The three body size measures were correlated for males but not for females. There was substantial variation among individual males in secondary sex characteristics measurements. The data indicate than lion-tailed macaque Morphometrics are consonant with the general pattern of positive allometry for body size and sexual dimorphism characteristic of the primate order.
Concha Bielza - One of the best experts on this subject based on the ideXlab platform.
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Comparing basal dendrite branches in human and mouse hippocampal CA1 pyramidal neurons with Bayesian networks.
Scientific Reports, 2020Co-Authors: Bojan Mihaljević, Pedro Larrañaga, Ruth Benavides-piccione, Javier Defelipe, Concha BielzaAbstract:Pyramidal neurons are the most common cell type in the cerebral cortex. Understanding how they differ between species is a key challenge in neuroscience. A recent study provided a unique set of human and mouse pyramidal neurons of the CA1 region of the hippocampus, and used it to compare the morphology of apical and basal dendritic branches of the two species. The study found inter-species differences in the magnitude of the Morphometrics and similarities regarding their variation with respect to morphological determinants such as branch type and branch order. We use the same data set to perform additional comparisons of basal dendrites. In order to isolate the heterogeneity due to intrinsic differences between species from the heterogeneity due to differences in morphological determinants, we fit multivariate models over the Morphometrics and the determinants. In particular, we use conditional linear Gaussian Bayesian networks, which provide a concise graphical representation of the independencies and correlations among the variables. We also extend the previous study by considering additional Morphometrics and by formally testing whether a morphometric increases or decreases with the distance from the soma. This study introduces a multivariate methodology for inter-species comparison of morphology.
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Comparing basal dendrite branches in human and mouse hippocampal CA1 pyramidal neurons with Bayesian networks
2020Co-Authors: Bojan Mihaljevic, Pedro Larrañaga, Ruth Benavides-piccione, Javier Defelipe, Concha BielzaAbstract:Pyramidal neurons are the most common cell type in the cerebral cortex. Understanding how they differ between species is a key challenge in neuroscience. A recent study provided a unique set of human and mouse pyramidal neurons of the CA1 region of the hippocampus, and used it to compare the morphology of apical and basal dendritic branches of the two species. The study found inter-species differences in the magnitude of the Morphometrics and similarities regarding their variation with respect to morphological determinants such as branch type and branch order. We use the same data set to perform additional comparisons of basal dendrites. In order to isolate the heterogeneity due to intrinsic differences between species from the heterogeneity due to differences in morphological determinants, we fit multivariate models over the Morphometrics and the determinants. In particular, we use conditional linear Gaussian Bayesian networks, which provide a concise graphical representation of the independencies and correlations among the variables. We also extend the previous study by considering additional Morphometrics and by formally testing test whether a morphometric increases or decreases with the distance from the soma. This study introduces a multivariate methodology for inter-species comparison of morphology.
N. C. Harvey - One of the best experts on this subject based on the ideXlab platform.
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morphometric data for adult lion tailed macaques macaca silenus
American Journal of Physical Anthropology, 1991Co-Authors: N. C. Harvey, A. S. Clarke, D. G. LindburgAbstract:Basic morphometric data were collected from 22 adult lion-tailed macaques (M. silenus) of both sexes. M. silenus is a rare primate species from which adequate morphometric data have not heretofore been available for comparative purposes. Data collected include measures of gross body size (weight; crown-rump and rump-heel length), and for males, measures of secondary sexual characteristics (canine tooth and testes size). Degree of sexual dimorphism was marked, with males significantly larger and heavier than females. The three body size measures were correlated for males but not for females. There was substantial variation among individual males in secondary sex characteristics measurements. The data indicate than lion-tailed macaque Morphometrics are consonant with the general pattern of positive allometry for body size and sexual dimorphism characteristic of the primate order.
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Morphometric data for adult lion‐tailed macaques (Macaca silenus)
American journal of physical anthropology, 1991Co-Authors: N. C. Harvey, A. S. Clarke, D. G. LindburgAbstract:Basic morphometric data were collected from 22 adult lion-tailed macaques (M. silenus) of both sexes. M. silenus is a rare primate species from which adequate morphometric data have not heretofore been available for comparative purposes. Data collected include measures of gross body size (weight; crown-rump and rump-heel length), and for males, measures of secondary sexual characteristics (canine tooth and testes size). Degree of sexual dimorphism was marked, with males significantly larger and heavier than females. The three body size measures were correlated for males but not for females. There was substantial variation among individual males in secondary sex characteristics measurements. The data indicate than lion-tailed macaque Morphometrics are consonant with the general pattern of positive allometry for body size and sexual dimorphism characteristic of the primate order.
Marianne Haapea - One of the best experts on this subject based on the ideXlab platform.
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quantifying subresolution 3d morphology of bone with clinical computed tomography
Annals of Biomedical Engineering, 2020Co-Authors: Sakari S Karhula, Mikko A J Finnila, Santeri J O Rytky, D M Cooper, Jerome Thevenot, Maarit Valkealahti, Kenneth P H Pritzker, Marianne HaapeaAbstract:The aim of this study was to quantify sub-resolution trabecular bone Morphometrics, which are also related to osteoarthritis (OA), from clinical resolution cone beam computed tomography (CBCT). Samples (n = 53) were harvested from human tibiae (N = 4) and femora (N = 7). Grey-level co-occurrence matrix (GLCM) texture and histogram-based parameters were calculated from CBCT imaged trabecular bone data, and compared with the morphometric parameters quantified from micro-computed tomography. As a reference for OA severity, histological sections were subjected to OARSI histopathological grading. GLCM and histogram parameters were correlated to bone Morphometrics and OARSI individually. Furthermore, a statistical model of combined GLCM/histogram parameters was generated to estimate the bone Morphometrics. Several individual histogram and GLCM parameters had strong associations with various bone Morphometrics (|r| > 0.7). The most prominent correlation was observed between the histogram mean and bone volume fraction (r = 0.907). The statistical model combining GLCM and histogram-parameters resulted in even better association with bone volume fraction determined from CBCT data (adjusted R2 change = 0.047). Histopathology showed mainly moderate associations with bone Morphometrics (|r| > 0.4). In conclusion, we demonstrated that GLCM- and histogram-based parameters from CBCT imaged trabecular bone (ex vivo) are associated with sub-resolution Morphometrics. Our results suggest that sub-resolution Morphometrics can be estimated from clinical CBCT images, associations becoming even stronger when combining histogram and GLCM-based parameters.
A. S. Clarke - One of the best experts on this subject based on the ideXlab platform.
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morphometric data for adult lion tailed macaques macaca silenus
American Journal of Physical Anthropology, 1991Co-Authors: N. C. Harvey, A. S. Clarke, D. G. LindburgAbstract:Basic morphometric data were collected from 22 adult lion-tailed macaques (M. silenus) of both sexes. M. silenus is a rare primate species from which adequate morphometric data have not heretofore been available for comparative purposes. Data collected include measures of gross body size (weight; crown-rump and rump-heel length), and for males, measures of secondary sexual characteristics (canine tooth and testes size). Degree of sexual dimorphism was marked, with males significantly larger and heavier than females. The three body size measures were correlated for males but not for females. There was substantial variation among individual males in secondary sex characteristics measurements. The data indicate than lion-tailed macaque Morphometrics are consonant with the general pattern of positive allometry for body size and sexual dimorphism characteristic of the primate order.
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Morphometric data for adult lion‐tailed macaques (Macaca silenus)
American journal of physical anthropology, 1991Co-Authors: N. C. Harvey, A. S. Clarke, D. G. LindburgAbstract:Basic morphometric data were collected from 22 adult lion-tailed macaques (M. silenus) of both sexes. M. silenus is a rare primate species from which adequate morphometric data have not heretofore been available for comparative purposes. Data collected include measures of gross body size (weight; crown-rump and rump-heel length), and for males, measures of secondary sexual characteristics (canine tooth and testes size). Degree of sexual dimorphism was marked, with males significantly larger and heavier than females. The three body size measures were correlated for males but not for females. There was substantial variation among individual males in secondary sex characteristics measurements. The data indicate than lion-tailed macaque Morphometrics are consonant with the general pattern of positive allometry for body size and sexual dimorphism characteristic of the primate order.
