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538 results for “mandible”
AN OPEN-SOURCE, THREE-DIMENSIONAL GROWTH MODEL OF THE MANDIBLE
<p>This repository contains all geometrical data and metadata belonging to the paper AN OPEN-SOURCE, THREE-DIMENSIONAL GROWTH MODEL OF THE MANDIBLE by the MAGIC Amsterdam research consortium. The following contents are uploaded:</p><p><strong>shapeVectors_original.csv</strong> | shape vectors of the original data<br><strong>shapeVectors_rescaled.csv</strong> | shape vectors of the rescaled data<br>678 x 62589 matrices where the rows are samples and the columns are shape vectors. The shape vectors are formatted<i> [x1, x2, x3, ..., y1, y2, y3, ..., z1, z2, z3, ...].</i></p><p><strong>PCA_coeff_original.csv</strong> | principal component coefficients of the original data<br><strong>PCA_coeff_rescaled.csv</strong> | principal component coefficients of the rescaled data<br>62589 x 677 matrices where each row of these matrices is a variable (x-, y-, or z-coordinate of a vertex) and each column is a principal component.</p><p><strong>PCA_score_original.csv</strong> | principal component scores of the original data<br><strong>PCA_score_rescaled.csv</strong> | principal component scores of the rescaled data<br>678 x 677 matrices where rows correspond to samples and columns correspond to principal components.</p><p><strong>PCA_latent_original.csv</strong> | principal component variances of the original data<br><strong>PCA_latent_rescaled.csv</strong> | principal component variances of the rescaled data<br>677 x 1 vectors where each element is an eigenvalue of a principal component.</p><p><strong>PCA_mu_original.csv</strong> | mean of the original data<br><strong>PCA_mu_rescaled.csv</strong> | mean of the rescaled data<br>1 x 62589 vectors that represent the average shape vector. All (centered) data can be reconstructed as follows: <i>shapeVectors = PCA_score * PCA_coeff' + PCA_mu.</i></p><p><strong>PCA_standardDeviations_original.csv</strong> | standard deviations of each sample for each principal component of the original data.<br><strong>PCA_standardDeviations_rescaled.csv</strong> | standard deviations of each sample for each principal component of the rescaled data.<br>677 x 678 matrices where the rows are principal components and the columns are samples. The standard deviations were calculated as follows: <i>PCA_standardDeviations = PCA_score' ./ sqrt(PCA_latent).</i></p><p><strong>metadata.csv</strong> | This matrix contains the age in years (first column) and biological sex (second column, 1 = male and 2 = female) for all samples (rows).</p><p><strong>connectivityList.csv</strong> | This matrix defines the mesh of the 3D model of the mandible. The vector in each row represents which vertices define a triangle. Indexing starts at 0, so for use in e.g. Matlab, add 1 to all elements.</p>
Figures 401-415. Mouthparts - mandibles. 401 in Morphology of Baridinae and related groups (Coleoptera, Curculionidae)
Figures 401-415. Mouthparts - mandibles. 401, Megabaris quadriguttata; 402, Conoproctus quadripustulatus; 403, Eugeraeus sp.; 404, Lepidobaris acnisti; 405, Phacelobarus singularis; 406, Cyrtepistomus castaneus, showing difference in incisor shape to that of Baridinae s. str.; 407, Derelomus basalis; 408, Cryptorhynchus lapathi; 409, Dryophthorus americanus, showing elongate molar region; 410, Bagous transversus, showing incisors and molar region; 411, Cholus rana, showing difference in incisor shape to that of Baridinae s. str.; 412, Cossonus impressifrons; 413, Curculio pardalis, showing difference in incisor shape and molar region to those of Baridinae s. str.; 414, Hylurgops planirostris; 415, Barycerus collaris.
Figures 416-431. Mouthparts - mandibles. 416 in Morphology of Baridinae and related groups (Coleoptera, Curculionidae)
Figures 416-431. Mouthparts - mandibles. 416, Testalthea sp.; 417, Rhytidoglymma aenescens; 418, Megalobaris viridana; 419, Barymerus binarius; 420, Trichodocerus sp.; 421, Coeliodes flavicaudis; 422, Mononychus vulpeculus; 423, Mecopus trilineatus; 424, Hypurus bertrandi; 425, Trigonocolus curvipes; 426, Cylindrocopturus adspersus; 427, Telephae oculata; 428, Balanogastris kolae; 429, Metialma signifera; 430, Cyllophorus fasciatus; 431, Arachnobas gazella.
Figures 368-384. Mouthparts - mandibles. 368 in Morphology of Baridinae and related groups (Coleoptera, Curculionidae)
Figures 368-384. Mouthparts - mandibles. 368, Geraeus penicillus; 369, Microcholus puncticollis; 370, Linogeraeus viduatus, showing incisor and molar region on a linear mandible and naturally detached apical half of incisor; 371, Ovanius minutus; 372, Plocamus echidna; 373, Plocamus calvisetis; 374, Oligolochus bracatus, showing deep lacerations and three incisors on an angled mandible; 375, Oligolochus ornatus; 376, Odontocorynus scutellumalbum, showing two incisors and molar region on a linear mandible; 377, Odontocorynus creperus; 378, Camelodes leachii, showing two incisors and molar region on a linear mandible; 379, Sibariops concinnus; 380, Torcus nigrinus; 381, Sibariops concurrens; 382, Madopterus talpa; 383, Parallelosomus amplitarsis, showing two incisors on an angled mandible; 384, Orchidophilus aterrimus, showing three incisors on an angled mandible.
Figures 353-367. Mouthparts - mandibles. 353 in Morphology of Baridinae and related groups (Coleoptera, Curculionidae)
Figures 353-367. Mouthparts - mandibles. 353, Zygobaris nitens; 354, Centrinus curvirostris; 355, Anthinobaris sp., showing three incisors on mandible; 356, Ovanius picipennis; 357, Peridinetus irroratus, showing angled incisors and molar region on an angled mandible; 358, Loboderes citriventris; 359, Antesis sparsa, showing incisor and molar region on a linear mandible; 360, Acentrinops brevicollis, showing lateral laceration on incisor; 361, Garnia sp., showing mandible bearing two incisors; 362, Pachygeraeus laevirostris, showing mandible with one incisor and a molar region; 363, Eisonyx crassipes, showing angled incisors and molar region on an angled mandible; 364, Dirabius calvus; 365, Eisonyx opacus; 366, Xystus arnoldi, showing incisor and molar region on a linear mandible and lateral laceration on incisor; 367, Buchananius sulcatus, showing three incisors on mandible.
Figure 50. Pegomya solennis, mandibles removed from a in Diverse mechanisms of feeding and movement in Cyclorrhaphan larvae (Diptera)
Figure 50. Pegomya solennis, mandibles removed from a puparium, ventral view, maximum length 0.1 mm.
Agonum rugicolle, head with labrum (la) and mandibles (mdb) from Assmann et al. 2021 doi: 10.3897/zookeys.1044.62615
<p>Apical part of head of Agonum rugicolle</p>
FIGURE 3. Bothriomyrmex paradoxus worker. a. Lateral view. b. Mandible. c. Petiole. d in A new species of the genus Bothriomyrmex Emery, 1869 (Hymenoptera: Formicidae: Dolichoderinae) from Costa Rica
FIGURE 3. Bothriomyrmex paradoxus worker. a. Lateral view. b. Mandible. c. Petiole. d. Mouthparts and anterior head capsule, ventral view. b, c, d not to scale.
Exaggerated mandibles are correlated with enhanced foraging efficacy in male Auckland tree wētā
<p class="MsoNormal">Sexual selection has driven the evolution of weaponry for males to fight rivals to gain access to females. Although weapons <span>are predicted to increase males' reproductive success, they are also expected to</span> incur costs and may impair functional activities, including foraging. Using feeding assays, we tested whether the enlarged mandibles of Auckland tree wētā (<em>Hemideina thoracica</em>) impact feeding activity (the total volume of biomass consumed, bite rate, and number of foraging visits) and foraging behaviour (time spent moving, feeding, or stationary). We predicted that increased mandible length in male wētā would hinder their feeding rates. However, we found that wētā with longer heads fed at a faster rate and spent less time foraging than wētā with smaller heads, regardless of sex. Contrary to expectations that weapons impede functional activities, our results demonstrate that exaggerated traits can improve feeding performance and may offer benefits other than increased mating success.</p>
Fig.ç20.A mblyops timorensis sp. nov., holotype, male (NSMT-Cr 21366). A, anterior part of body (dorsal); B, eyeplate (right, dorsal); C, eyeplate (le, lateral); D, antennular peduncle (right, dorsal); E, antenna (right, dorsal); F, antennal peduncle (le, lateral); G, mandible and mandibular palp (right); H, maxillule (right); I, maxilla (right). in The Genus Amblyops (Crustacea: Mysida: Mysidae: Erythropinae) from East Asia and Australia, with Descriptions of Ten New Species
Fig.ç20.A mblyops timorensis sp. nov., holotype, male (NSMT-Cr 21366). A, anterior part of body (dorsal); B, eyeplate (right, dorsal); C, eyeplate (le, lateral); D, antennular peduncle (right, dorsal); E, antenna (right, dorsal); F, antennal peduncle (le, lateral); G, mandible and mandibular palp (right); H, maxillule (right); I, maxilla (right).
Fig.ç12.A mblyops paci cus sp. nov., A, E, F, H–J, holotype, male (NSMT-Cr 21355); B–D, G, one of paratypes, female (NSMT-Cr 21357). A, B, anterior part of body (dorsal); C, eyeplate (right, dorsal); D, antennular peduncle (right, dorsal); E, antenna (right, dorsal); F, apical part of antennal scale (right, dorsal); G, antenna (right, dorsal); H, mandible and mandibular palp (right), I, outer lobe of maxillule (right); J, maxilla (right). in The Genus Amblyops (Crustacea: Mysida: Mysidae: Erythropinae) from East Asia and Australia, with Descriptions of Ten New Species
Fig.ç12.A mblyops paci cus sp. nov., A, E, F, H–J, holotype, male (NSMT-Cr 21355); B–D, G, one of paratypes, female (NSMT-Cr 21357). A, B, anterior part of body (dorsal); C, eyeplate (right, dorsal); D, antennular peduncle (right, dorsal); E, antenna (right, dorsal); F, apical part of antennal scale (right, dorsal); G, antenna (right, dorsal); H, mandible and mandibular palp (right), I, outer lobe of maxillule (right); J, maxilla (right).
Fig.ç5.A mblyops izuensis sp. nov., holotype, male (NSMT-Cr 21348). A, eyeplate (le); B, antennular peduncle (le, dorsal); C, antenna (le, dorsal); D, antennal peduncle (le, dorsal); E, mandible and mandibular palp (le); F, maxillule (le); G, maxilla (le); H, rst thoracopod (le); I, second thoracopodal endopod (right); J, K, genital organ and sternal process. in The Genus Amblyops (Crustacea: Mysida: Mysidae: Erythropinae) from East Asia and Australia, with Descriptions of Ten New Species
Fig.ç5.A mblyops izuensis sp. nov., holotype, male (NSMT-Cr 21348). A, eyeplate (le); B, antennular peduncle (le, dorsal); C, antenna (le, dorsal); D, antennal peduncle (le, dorsal); E, mandible and mandibular palp (le); F, maxillule (le); G, maxilla (le); H, rst thoracopod (le); I, second thoracopodal endopod (right); J, K, genital organ and sternal process.
Fig.ç7.A mblyops kashimensis sp. nov., holotype, female (NSMT-Cr 21350). A, anterior part of body (dorsal); B, antenna (right, dorsal); C, antennal peduncle (right, lateral); D, mandible and mandibular palp (right); E, maxillule (right); F, maxilla (right); G, labrum (ventral); H, uropod and telson (dorsal); I, proximal part of uropodal endopod (right, ventral); J, posterior part of telson (dorsal). in The Genus Amblyops (Crustacea: Mysida: Mysidae: Erythropinae) from East Asia and Australia, with Descriptions of Ten New Species
Fig.ç7.A mblyops kashimensis sp. nov., holotype, female (NSMT-Cr 21350). A, anterior part of body (dorsal); B, antenna (right, dorsal); C, antennal peduncle (right, lateral); D, mandible and mandibular palp (right); E, maxillule (right); F, maxilla (right); G, labrum (ventral); H, uropod and telson (dorsal); I, proximal part of uropodal endopod (right, ventral); J, posterior part of telson (dorsal).
Fig.ç3.A mblyops australiensis sp. nov., holotype, male (NSMT-Cr 21346). A, anterior part of body (dorsal); B, eyeplate (right, dorsal); C, antennular peduncle (right, ventral); D, antenna (right, dorsal); E, antennal peduncle (right, lateral); F, mandible and mandibular palp (right); G, outer lobe of maxillule (right); H, maxilla (right); I, labrum (ventral). in The Genus Amblyops (Crustacea: Mysida: Mysidae: Erythropinae) from East Asia and Australia, with Descriptions of Ten New Species
Fig.ç3.A mblyops australiensis sp. nov., holotype, male (NSMT-Cr 21346). A, anterior part of body (dorsal); B, eyeplate (right, dorsal); C, antennular peduncle (right, ventral); D, antenna (right, dorsal); E, antennal peduncle (right, lateral); F, mandible and mandibular palp (right); G, outer lobe of maxillule (right); H, maxilla (right); I, labrum (ventral).
Fig.ç14.A mblyops sagamiensis sp. nov., holotype, female (NSMT-Cr 21361). A, anterior part of body (dorsal); B, eyeplate (le, dorsal); C, eyeplate (le, lateral); D, antenna (le, dorsal); E, antennal peduncle (le, lateral); F, mandible and mandibular palp (le); G, maxillule (le); H, maxilla (right); I, labrum (ventral); J, rst thoracopodal endopod (le). in The Genus Amblyops (Crustacea: Mysida: Mysidae: Erythropinae) from East Asia and Australia, with Descriptions of Ten New Species
Fig.ç14.A mblyops sagamiensis sp. nov., holotype, female (NSMT-Cr 21361). A, anterior part of body (dorsal); B, eyeplate (le, dorsal); C, eyeplate (le, lateral); D, antenna (le, dorsal); E, antennal peduncle (le, lateral); F, mandible and mandibular palp (le); G, maxillule (le); H, maxilla (right); I, labrum (ventral); J, rst thoracopodal endopod (le).
Fig.ç2.A, Caligus latigenitalis Shiino, 1954, male (KMNH IvR 500, 510), habitus, dorsal view; B–F. Caligus longiramus sp. nov., holotype, female (KMNH IvR 500, 511): B, habitus, dorsal view; C, caudal rami, dorsal view; D, antennule, ventral view; E, antenna, postantennal process, and maxillule, ventral view; F, mandible. Scale bars: 1 mm (A, B); 0.1 mm (C–F). in Occurrence of Caligid Copepods (Crustacea) in Plankton Samples Collected from Japan and Ŋailand, with the Description of a New Species
Fig.ç2.A, Caligus latigenitalis Shiino, 1954, male (KMNH IvR 500, 510), habitus, dorsal view; B–F. Caligus longiramus sp. nov., holotype, female (KMNH IvR 500, 511): B, habitus, dorsal view; C, caudal rami, dorsal view; D, antennule, ventral view; E, antenna, postantennal process, and maxillule, ventral view; F, mandible. Scale bars: 1 mm (A, B); 0.1 mm (C–F).
Quantitative results of the analysis of novel ossicle particles used in mandible bone regeneration
<p>Dataset corresponding to the results of the characterization analysis of novel holothurian ossicle biomaterials. These biomaterials were evaluated at three levels:</p> <p>1) Ex vivo analysis to determine thr potential cytotoxic effects of these biomaterials on human fibroblasts using LIVE/DEAD and quantification of DNA released to the medium.</p> <p>2) In vivo analysis to determine the potential systemic effects of these biomaterials grafted subcutaneously in laboratory rats.</p> <p>3) Histochemical and immunohistochemical analysis to determine the potential effects of these biomaterials on mandible bone regeneration.</p> <p>These results correspond to the publication entitled "<span>EVALUATION OF HOLOTHURIAN OSSICLES AS A BIOLOGICAL BIOMATERIAL FOR MANDIBULAR BONE REGENERATION</span>".</p>
Fig. 2 in Functional And Phylogenetic Aspect In Modularity Of Palearctic Mustelids (Carnivora, Mustelidae) Mandible
Fig. 2. Distribution of mustelid specimens in the scatterplot of the allometric shape component (Regression Score 1) vs log10-transformed mandible length. Mandible shape changes associated with allometry are shown for zero (average shape, grey outline), minimal and maximal values of the regression scores (with magniFIcation factor 1). Masseteric fossa (landmark 12) is linked with landmarks 6, 8, 13 for the ease of visualization. Species are abbreviated: E. lutris = E; G. gulo = G; M. meles = M; L. lutra = L; Martes: M. martes = 1; M. foina = 2; M. zibellina = 3; M. flavigula = 4; Mustela: M. eversmani = e; M. putorius = p; M. lutreola = l; M. sibirica = s; M. erminea = r; M. nivalis = n.
Fig. 3 in Functional And Phylogenetic Aspect In Modularity Of Palearctic Mustelids (Carnivora, Mustelidae) Mandible
Fig. 3. Distribution of mustelid specimens in the scatterplot of PLS1 (A): variation within mandibular corpus (Block 1) presented at x-axis, and variation within ramus (Block 2) is at y-axis. Mandible shape changes associated with standard (B and C) and evolutionary (D and E) PLS1 are shown with black outline for extreme values of PLS1 scores. The reference shape is shown as grey outline. MagniFIcation scale factor is 1.5. Species are abbreviated as in FIg. 2.
Fig. 1 in Functional And Phylogenetic Aspect In Modularity Of Palearctic Mustelids (Carnivora, Mustelidae) Mandible
Fig. 1. The position of landmarks on a mandible outline of Mustela lutreola. A — scheme of landmarks from Romaniuk (2018); the picture of mandible is adapted from Novikov (1956). And the subdivisions into two (B) and three modules (C) with the lowest RV coefficients.
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