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395 results for “Homogenization”
FIGURE 3 in Population structuration and chromosomal features homogeneity in Parodon nasus (Characiformes: Parodontidae): A comparison between Lower and Upper Paraná River representatives
FIGURE 3 | Karyotypes of the four populations of Parodon nasus submitted to fluorescence in situ hybridization using 18S rDNA (green signal) and 5S rDNA (red signal) probes. Chromosomes with signals for the pPh2004 probe were highlighted in boxes. A. Cuiabá River; B. Mogi-Guaçu River; C. Passa Cinco River; D. Paiol Grande stream. Scale bar = 10µm.
FIGURE 1 in Population structuration and chromosomal features homogeneity in Parodon nasus (Characiformes: Parodontidae): A comparison between Lower and Upper Paraná River representatives
FIGURE 1 | A. Adult specimen of Parodon nasus. B. Partial map of the South America showing the La Plata basin, the principal rivers of the basin, and the collection sites of the P. nasus species analyzed.
FIGURE 2 in Population structuration and chromosomal features homogeneity in Parodon nasus (Characiformes: Parodontidae): A comparison between Lower and Upper Paraná River representatives
FIGURE 2 | Karyotypes of the four populations of Parodon nasus submitted to the C-banding procedure. A. Cuiabá River; B. Mogi-Guaçu River; C. Passa Cinco River; D. Paiol Grande stream. Scale bar = 10µm.
Figure 7 in Taxonomic notes on the Asian frogs of the tribe Paini (Ranidae, Dicroglossinae): 1. Morphology and synonymy of Chaparana aenea (Smith, 1922), with proposal of a new statistical method for testing homogeneity of small samples
Figure 7. Chaparana aenea (Smith, 1922), MNHN 1999.5821, topotype of Rana (Chaparana) fansipani Bourret, 1939, adult male from Fan Si Pan, Vietnam: ventral view of chest and throat showing shape of patch of nuptial spines.
Figure 6 in Taxonomic notes on the Asian frogs of the tribe Paini (Ranidae, Dicroglossinae): 1. Morphology and synonymy of Chaparana aenea (Smith, 1922), with proposal of a new statistical method for testing homogeneity of small samples
Figure 6. Plots of factors 1 and 2 of principal component analysis based on varimax rotated coefficients for logtransposed characters (25 measurements) for four adult specimens of Chaparana aenea (Smith, 1922) (see Table II) and six adult specimens of Chaparana unculuanus (Liu, Hu and Yang, 1960) (see Table IV).
Figure 3 in Taxonomic notes on the Asian frogs of the tribe Paini (Ranidae, Dicroglossinae): 1. Morphology and synonymy of Chaparana aenea (Smith, 1922), with proposal of a new statistical method for testing homogeneity of small samples
Figure 3. Chaparana aenea (Smith, 1922). (a–c) MNHN 1989.0712, non-breeding adult male from Doi Inthanon, Chiangmai Province, Thailand: (a) whole body in dorsal view; (b) whole body in ventral view; (c) head in right lateral view. (d–f) MNHN 1948.0139, holotype of Rana (Chaparana) fansipani Bourret, 1939, juvenile male from Fan Si Pan, Vietnam: (d) whole body in dorsal view; (e) whole body in ventral view; (f) head in right lateral view.
Figure 4 in Taxonomic notes on the Asian frogs of the tribe Paini (Ranidae, Dicroglossinae): 1. Morphology and synonymy of Chaparana aenea (Smith, 1922), with proposal of a new statistical method for testing homogeneity of small samples
Figure 4. (a–c) Chaparana aenea (Smith, 1922), MNHN 1999.5818, topotype of Rana (Chaparana) fansipani Bourret, 1939, adult male from Fan Si Pan, Vietnam: (a) whole body in dorsal view; (b) whole body in ventral view; (c) head in right lateral view. (d–f) Chaparana unculuanus (Liu, Hu and Yang, 1960), MNHN 2001.0280, adult female from Jingdong Xian, Yunnan, China: (d) whole body in dorsal view; (e) whole body in ventral view; (f) head in right lateral view.
Figure 1 in Taxonomic notes on the Asian frogs of the tribe Paini (Ranidae, Dicroglossinae): 1. Morphology and synonymy of Chaparana aenea (Smith, 1922), with proposal of a new statistical method for testing homogeneity of small samples
Figure 1. Chaparana aenea (Smith, 1922). (a–c) BMNH 1947.2.2.31 (ex BMNH 1922.7.4.4, ex MAS 5821), holotype of Rana aenea Smith, 1922, juvenile female from Doi Chang, Thailand: (a) whole body in dorsal view; (b) whole body in ventral view; (c) head in right lateral view. (d–f) MNHN 1999.5821, topotype of Rana (Chaparana) fansipani Bourret, 1939, adult male from Fan Si Pan, Vietnam: (d) whole body in dorsal view; (e) whole body in ventral view; (f) head in right lateral view.
Text-fig. 30. Scanning electron microscope (SEM) images of anther and pollen of Kempia longicolpites; Catefica locality, Portugal. a) Transverse section through an anther showing the four pollen sacs with in situ pollen; b) Pollen in situ from anther in (a) showing very long colpus and loosely attached reticulum; c) Detail of reticulum showing smooth muri supported by short, scattered columellae; d) Pollen grain from anther in (a) enlarged showing colpus extended beyond the equator and loosely attached reticulum; e) Detail of pollen wall showing thick, homogeneous foot layer, columellae and reticulate tectum; note remains of granular endexine (arrows) in the apertural region of the grain; f) Internal view of reticulum showing the short columellae adhering to the muri detached from the foot layer. Specimen, Catefica 49-S101208 (a–f). Scale bars = 100 Μm (a), 20 Μm (b), 6 Μm (d), 3 Μm (c, e, f). in The Early Cretaceous Mesofossil Flora Of Catefica, Portugal: Angiosperms
Text-fig. 30. Scanning electron microscope (SEM) images of anther and pollen of Kempia longicolpites; Catefica locality, Portugal. a) Transverse section through an anther showing the four pollen sacs with in situ pollen; b) Pollen in situ from anther in (a) showing very long colpus and loosely attached reticulum; c) Detail of reticulum showing smooth muri supported by short, scattered columellae; d) Pollen grain from anther in (a) enlarged showing colpus extended beyond the equator and loosely attached reticulum; e) Detail of pollen wall showing thick, homogeneous foot layer, columellae and reticulate tectum; note remains of granular endexine (arrows) in the apertural region of the grain; f) Internal view of reticulum showing the short columellae adhering to the muri detached from the foot layer. Specimen, Catefica 49-S101208 (a–f). Scale bars = 100 Μm (a), 20 Μm (b), 6 Μm (d), 3 Μm (c, e, f).
Supplementary codes and datasets for "Efficient numerical method for reliable upper and lower bounds on homogenized parameters"
<p>This repository supports L. Gaynutdinova, M. Ladecký, A. Nekvinda, I. Pultarová, and J. Zeman, <em>Efficient numerical method for reliable upper and lower bounds on homogenized parameters</em> (first announced as the arXiv preprint <a href="http://arxiv.org/abs/2208.09940">2208.09940</a>).</p> <p>In particular, it contains MATLAB source files for reproducing the results presented in Examples 1 and 2 of the manuscript for discretizations with <span class="math-tex">\(N_1 = N_2 = N_3 = 6, 12, 24\)</span>. For other parameters, the code needs to be modified manually.</p> <p>The most recent version of the codes is available in the <a href="https://gitlab.com/ul_bounds_homog_CTU/3d-fem-homogenized-parameters">GitLab repository</a>.</p>
Theory-guided development of homogeneous catalysts for the reduction of CO2 to formate, formaldehyde, and methanol derivatives
<p>The stepwise catalytic reduction of carbon dioxide (CO<sub>2</sub>) to formic acid, formaldehyde, and methanol opens non-fossil pathways to important platform chemicals. The present article aims at identifying molecular control parameters to steer the selectivity to the three distinct reduction levels using organometallic catalysts of earth-abundant first-row metals. A linear scaling relationship was developed to map the intrinsic reactivity of 3d transition metal pincer complexes to their activity and selectivity in CO<sub>2</sub> hydrosilylation. The hydride affinity of the catalysts was used as a descriptor to predict activity/selectivity trends in a composite volcano picture, and the outstanding properties of cobalt complexes bearing bis(phosphino)triazine PNP-type pincer ligands to reach the three reduction levels selectively under different reaction conditions could thus be rationalized. The implications of the composite volcano picture were successfully experimentally validated with selected catalysts, and the challenging intermediate level of formaldehyde could be accessed in over 80% yield with the cobalt complex <strong>6</strong>. The results underpin the potential of tandem computational-experimental approaches to propel catalyst design for CO<sub>2</sub>-based chemical transformations.</p>
OFF files of Near-miss Bi-Homogenous Symmetric Polyhedral Cages
<p>Near-miss Bi-Homogenous Symmetric Polyhedral Cages#</p> <p>List of all off files for the bi-homogeneous-symmetric-1-2 p-cages with<br> a deformation not exceeding 10%.</p>
Data from: Are tree plantations promoting homogenization of mammal assemblages between regions with contrasting environments?
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Temperature-driven homogenization of an ant community over 60 years in a montane ecosystem
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Data from: Homogeneous selection and stochasticity overrule heterogeneous selection across biotic taxa and ecosystems
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Data from: Thermal homogenization of boreal communities in response to climate warming
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Standardized nuclear markers improve and homogenize species delimitation in Metazoa
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Data from: Homogenization of populations in the wildflower Texas bluebonnet (Lupinus texensis)
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Scripts and data sets associated with: On testing homogeneity of the evolutionary process using alignments of homologous sequences
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Phenotypic homogenization and potential fitness constraints following non-native introgression in an endemic sportfish
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