Results 21 to 30 of about 80,615 (281)

Bilaterally Asymmetric Helical Myofibrils in Ascidian Tadpole Larvae

Frontiers in Cell and Developmental Biology, 2021
The locomotor system is highly bilateral at the macroscopic level. Homochirality of biological molecules is fully compatible with the bilateral body. However, whether and how single-handed cells contribute to the bilateral locomotor system is obscure ...
Koichi Matsuo, Ryota Tamura, Kohji Hotta, Mayu Okada, Akihisa Takeuchi, Yanlin Wu, Koh Hashimoto, Hidekazu Takano, Atsushi Momose, Atsuo Nishino   +9 more
doaj   +1 more source

Radial or bilateral? The molecular basis of floral symmetry. [PDF]

, 2020
In the plant kingdom, the flower is one of the most relevant evolutionary novelties. Floral symmetry has evolved multiple times from the ancestral condition of radial to bilateral symmetry.
ACETO, SERENA, LUCIBELLI, FRANCESCA, VALOROSO, MARIA CARMEN   +2 more
core   +1 more source

Floral symmetry affects bumblebee approach consistency in artificial flowers

Journal of Pollination Ecology, 2016
Bilateral symmetry has evolved from radial symmetry in several floral lineages, and multiple hypotheses have been proposed to account for the success of this floral plan.
Brett Matthew Culbert, Jessica Forrest
doaj   +1 more source

A Step-by-Step Guide for Geometric Morphometrics of Floral Symmetry

Frontiers in Plant Science, 2018
This paper provides a step-by-step guide for the morphological analysis of corolla and the decomposition of corolla shape variation into its symmetric and asymmetric components.
Yoland Savriama
doaj   +1 more source

Tree Size Influences Leaf Shape but Does Not Affect the Proportional Relationship Between Leaf Area and the Product of Length and Width

Frontiers in Plant Science, 2022
The Montgomery equation predicts leaf area as the product of leaf length and width multiplied by a correction factor. It has been demonstrated to apply to a variety of leaf shapes.
Jianzhong Ma, Jianzhong Ma, Karl J. Niklas, Leyi Liu, Zhendong Fang, Yirong Li, Peijian Shi   +6 more
doaj   +1 more source

A Retrospective Study of Roots and Root Canal Morphology in Mandibular Premolars using Cone Beam Computed Tomography in Delhi-NCR [PDF]

Journal of Clinical and Diagnostic Research, 2021
Introduction: The anatomical heterogeneity of mandibular premolars has always been considered an enigma and it makes them potentially prone to high rates of endodontic failure.
SNEH MISHRA, SONALI TANEJA, VIDHI KIRAN BHALLA, AKSHAY RATHORE   +3 more
doaj   +1 more source

Evaluation of roots and root canals’ morphology of maxillary premolars in a Syrian subpopulation using cone-beam computed tomography

Saudi Endodontic Journal, 2023
Introduction: The morphology of the roots is variable and complex; hence, a better understanding of the root canal systems is important to provide optimal endodontic treatment. The aim of this study was to investigate the number of roots, and root canals’
Safa Allawi, Ahmad A Madarati, Mouhammad Al-Tayyan   +2 more
doaj   +1 more source

Concussion Disrupts Normal Brain White Matter Microstructural Symmetry

Frontiers in Neurology, 2020
Injuries and illnesses can alter the normal bilateral symmetry of the brain, and determining the extent of this disruption may be useful in characterizing the pathology.
Jun Maruta, Jun Maruta, Jun Maruta, Jacob M. Mallott, Gary Sulioti, Gary Sulioti, Jamshid Ghajar, Jamshid Ghajar, Eva M. Palacios, Pratik Mukherjee, Pratik Mukherjee   +10 more
doaj   +1 more source

Symmetries in Images on Ancient Seals [PDF]

, 2009
We discuss the presence of symmetries in images engraved on ancient seals, in particular on stamp seals. Used to stamp decorations, to secure the containers from tampering and for owner's identification, we can find seals that can be dated from Neolithic
Sparavigna, Amelia Carolina
core   +1 more source

Vertical stiffness asymmetries during drop jumping are related to ankle stiffness asymmetries [PDF]

, 2016
Asymmetry in vertical stiffness has been associated with increased injury incidence and impaired performance. The determinants of vertical stiffness asymmetry have not been previously investigated.
Alexander, Arampatzis, Bailey, Bailey, Bazyler, Beck, Bell, Benjanuvatra, Blazevich, Butler, Cohen, Comyns, Dempster, Farley, Farley, Farley, Flanagan, Flanagan, Hart, Hobara, Hobara, Hopkins, Horita, Joseph, Kawakami, Kim, Kuitunen, Lloyd, Maloney, Marshall, McMahon, Moir, Newton, Padua, Pearson, Pruyn, Pruyn, Read, Sugiyama, Wang, Watsford, Wilson, Winter, Young, Zifchock   +44 more
core   +2 more sources