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opencc-by-4.0May 2021View details →

Refined Mass and Geometric Measurements of the High-Mass PSR J0740+6620: Probability Density Functions and their Credible Intervals

This Zenodo entry contains files for data used by Fonseca et al. (2021), The Astrophysical Journal Letters, 915, L12, which presents an analysis of radio-timing data for PSR J0740+6620 observed with the Green Bank Telescope and the Canadian Hydrogen Intensity Mapping Experiment telescope. See the attached README for a description of the attached data products and their use.

opencc-by-4.0Jul 2021View details →

Experimental and numerical study of the effect of model geometric distortion on laboratory modelling of urban flooding

The supporting datasets includes:  (1) All the figures in the manuscript in .fig format (in case possible) - Figures in main text - Figure in Support Information (2) Datasets for generating the main outcomes of the manuscript - two files that explain detailed data content in three structure - 3 sub-repositories which contains the results for the three models - one repository contains the data for Figure 8

dryad40/100

Comparative analysis of a geometric and an adhesive righting strategy against toppling in inclined hexapedal locomotion

Animals are known to exhibit different walking behaviors in hilly habitats. For instance, cats, rats, squirrels, tree frogs, desert iguana, stick insects and desert ants were observed to lower their body height in traversing slopes, whereas mound-dwelling iguanas and wood ants tend to maintain constant walking kinematics regardless of the slope. This paper aims to understand and classify these distinct behaviors into two different strategies against toppling for climbing animals by looking into two factors, (i) the torque of the center of gravity (CoG) with respect to the critical tipping axis, and (ii) the torques of the legs, which have the potential to counterbalance the CoG-torque. Our comparative locomotion analysis on level locomotion and inclined locomotion exhibited that primarily only one of the proposed two strategies was chosen for each of our sample species, despite the fact that a combined strategy could have reduced the animal's risk to topple over even more. We found that desert ants of Cataglyphis fortis maintained their upright posture primarily through the adjustment of their CoG-torque (geometric strategy), and wood ants of the Formica rufa species group controlled their posture primarily by exerting leg-torques (adhesive strategy). We further provide hints that the geometric strategy employed by Cataglyphis could increase the risk for slipping on slopes since the leg-impulse substrate angle of Cataglyphis' hind legs were lower compared to Formica's. In contrast, the adhesion strategy employed by Formica's front legs not only decreased the risk for toppling. It also explained the steeper leg-impulse substrate angle of Formica's hind legs which should relate to more bending of the tarsal structures and therefore to more microscopic contact points potentially reducing the risk for hind leg slipping.

opencc-zeroJul 2021View details →

opencc-by-4.0Aug 2021View details →

Data for: High-order geometric integrators for representation-free Ehrenfest dynamics

Data for publication: S. Choi and J. Vaníček, High-order geometric integrators for representation-free Ehrenfest dynamics,<a href="https://aip.scitation.org/doi/10.1063/5.0061878"> J. Chem. Phys. 155, 124104 (2021)</a>. Contains the data for reproducing the figures in the above-mentioned publication.

Figure 2. 2D in The Woodcock's head: Resolving a morphological oddity using geometric morphometrics

Figure 2. 2D landmarks used in this study following Klingenberg and Marugán-Lobón (2013). Skull scheme modified from Thompson (1942). Abbreviation: BK—beak; O—orbit; B—braincase.

Figure 1 in The Woodcock's head: Resolving a morphological oddity using geometric morphometrics

Figure 1. Different ways in which the skull of the woodcock has been oriented to interpret its anatomy in lateral view. A. As it leans over a table (modified from, Cobb, 1959). Notice how the ear (E) lies nearly anterior to the eye (orbits), and how the latter seem to orient as to direct sight relatively backwards. B. As the bird is flying, as suggested in (and modified from) Thompson (1942). Notice that Thompson argued that the cranial floor (CF) in this posture is horizontal, yet no bone is alluded as to demarcate de basis cranii [sic]. C. As the bird is in alert, as measured by Duijm (1951) in a zoo. Notice that in such head posture of alert the lateral semicircular canal (LSC) in the woodcock is tilted approximately13° (i.e., it is not horizontal when the woodcock is in alert). Interestingly, if the skull is rotated those 13°, head posture matches Thompson's flight orientation.

Figure 3. Geometric morphometrics results. A in The Woodcock's head: Resolving a morphological oddity using geometric morphometrics

Figure 3. Geometric morphometrics results. A. Procrustes residuals (shape data) of the 160 superimposed configurations. The configuration of the woodcock is plotted inside to show how its skull shape maps compared to the rest of birds. B. Isolated average configuration (grey, left) and woodcock (black, right). C. Average and woodcock superimposed to show that the largest difference is in the position of the facial skeleton compared to the neurocranium. D. Same as C yet using the Thin Plate Spline deformation to further stress the craniofacial differences between the woodcock and the average. Notice how craniofacial differences are due to the "rotation" of the face and the neurocranium. E. Thin plate spline deformation of the woodcock compared to the rest of the sample within morphospace (summary of shape variance of Fig. 3A using Relative Warps Analysis, i.e., PCA). Black/thick arrow points to woodcock, Thin arrow points to Snipe, whose skull shape is definitely similar to that of the woodcock.

Figure 2 in Shell geometric morphometrics in Biomphalaria glabrata (Mollusca: Planorbidae) uninfected and infected with Schistosoma mansoni

Figure 2. Principal component analysis diagram of the first two principal components (within percentage explained variance contribution) from 60 Biomphalaria glabrata specimens, uninfected (black dots) and infected with Schistosoma mansoni (gray dots). Ellipse encloses 90% of data for each group.

Figure 1 in Shell geometric morphometrics in Biomphalaria glabrata (Mollusca: Planorbidae) uninfected and infected with Schistosoma mansoni

Figure 1. Shell of Biomphalaria glabrata showing the landmarks (LM1–LM12) disposition. White landmarks correspond to type I and II landmarks, while the gray to semilandmarks.

Figure 3 in Shell geometric morphometrics in Biomphalaria glabrata (Mollusca: Planorbidae) uninfected and infected with Schistosoma mansoni

Figure 3. Grid deformation showing differences in the Principal Component 1 (PC1) between the mean configuration of Biomphalaria glabrata uninfected and infected with Schistosome mansoni.

Figure 5. A in Geometric morphometric and molecular evidence suggest a new fruit fly species in Bactrocera (Zeugodacus) tau complex (Diptera: Tephritidae)

Figure 5. A Bayesian phylogenetic tree (COI sequence, 580 bp) generated with the generalized time reversible model. Labels at branch ends are species and group names. Numbers at nodes represent the posterior possibilities that supported by sequences.

Figure 3 in Geometric morphometric and molecular evidence suggest a new fruit fly species in Bactrocera (Zeugodacus) tau complex (Diptera: Tephritidae)

Figure 3. Discrimination of wing shape in four groups projected by CVs. Each polygon defines the outermost individuals in each group. A. Male. B. Female.

Figure 4 in Geometric morphometric and molecular evidence suggest a new fruit fly species in Bactrocera (Zeugodacus) tau complex (Diptera: Tephritidae)

Figure 4. Gr.I and Gr.II discrimination by aculeus outlines. A distribution of samples on the best CV–x axis, in which the y axis shows the number of individuals in each interval. An inset displays a superimposition of aculeus shapes.

Figure 1 in Geometric morphometric and molecular evidence suggest a new fruit fly species in Bactrocera (Zeugodacus) tau complex (Diptera: Tephritidae)

Figure 1. Criteria of sample classification. A. A medial vitta of Gr.I, characterized by a plain yellow band with posterior expansion. B. A medial vitta pattern of Gr.II, characterized by a yellow band inserted with a black strip in presutural region, and posteriorly constricted. Scale bar = 1 mm.

Figure 2 in Geometric morphometric and molecular evidence suggest a new fruit fly species in Bactrocera (Zeugodacus) tau complex (Diptera: Tephritidae)

Figure 2. Landmark design for wing and aculeus GM analyses. A. Type 1 landmarks on wing venation labeled with downward arrows and numbers indicating locations in geometric analysis. B. A trilobed aculeus. C. A yellow line representing the alignment of pseudolandmarks along an outline of aculeus tip, from one lateral apex to another lateral. Scale bars: A = 1 mm; B = 50 μm.

Figure 2 in Geometric morphometric analysis of Eysarcoris guttiger, E. annamita and E. ventralis (Hemiptera: Pentatomidae)

Figure 2. Boxplot of the centroid sizes of the four Eysarcoris species. A. Fore wing. B. Hind wing. C. Pygophore.

Figure 3 in Further geometric morphometric analysis on the genus Eysarcoris (Hemiptera: Pentatomidae) from China

Figure 3. Canonical variate analysis (CVA) based on the shape variables of different characters showing 90% confidence ellipses of population means. A. Forewing, B. Hindwing. C. Pygophore. D. Head. E. Pronotum. F. Scutellum.

Figure 2 in Further geometric morphometric analysis on the genus Eysarcoris (Hemiptera: Pentatomidae) from China

Figure 2. Comparisons of CS variables among species of Eysarcoris. A. Forewing, B. Hindwing. C. Pygophore. D. Head. E. Pronotum. F. Scutellum.

Figure 1 in Further geometric morphometric analysis on the genus Eysarcoris (Hemiptera: Pentatomidae) from China

Figure 1. Curves selection of three characters, resampled into 30, 100 and 50 semi-landmarks respectively. A. Head, outline curved of the tylus and jugum. B. Pronotum, outline curved. C. Scutellum, outline curved.

Figure 4. Phenetic tree with 25 in A web based tool to merge geometric morphometric data from multiple characters

Figure 4. Phenetic tree with 25 dung beetles based on Procrustes distances, which are computed from the merged geometric morphometric data from characters of the epipharynx, right mandible, pronotum, elytra, hind wing, and metendosternite in lateral and dorsal view (totally 649 landmarks). Abbreviations for the tribe names: AT—Ateuchini, CO—Coprini, DE—Deltochilini, GY— Gymnopleurini, ON—Oniticellini, OP—Onthophagini, OT—Onitini, SC—Scarabaeini, SI—Sisyphini.