Results 1 to 10 of about 592,917 (413)

Genome-wide association analysis reveals 6 copy number variations associated with the number of cervical vertebrae in Pekin ducks [PDF]

Frontiers in Cell and Developmental Biology, 2022
As a critical developmental stage in vertebrates, the vertebral column formation process is under strict control; however, we observed variations in the number of cervical vertebrae in duck populations in our previous study. Here, we further explored the
Yaxi Xu, Yaxi Xu, Jian Hu, Wenlei Fan, Hehe Liu, Yunsheng Zhang, Zhanbao Guo, Wei Huang, Xiaolin Liu, Shuisheng Hou   +9 more
doaj   +3 more sources

Hounsfield Unit for Assessing Bone Mineral Density Distribution Within Cervical Vertebrae and Its Correlation With the Intervertebral Disc Degeneration [PDF]

Frontiers in Endocrinology, 2022
Study DesignRetrospective radiological analysis.ObjectiveTo assess bone mineral mass distribution within cervical vertebrae based on Hounsfield unit (HU) measurement, and explore its correlation with intervertebral disc degeneration.MethodThree hundred ...
Xiao Liang, Qingtao Liu, Jiaxin Xu, Wenyuan Ding, Wenyuan Ding, Hui Wang   +5 more
doaj   +3 more sources

Fully automated determination of the cervical vertebrae maturation stages using deep learning with directional filters. [PDF]

PLoS One, 2022
Introduction We aim to apply deep learning to achieve fully automated detection and classification of the Cervical Vertebrae Maturation (CVM) stages. We propose an innovative custom-designed deep Convolutional Neural Network (CNN) with a built-in set of ...
Atici SF, Ansari R, Allareddy V, Suhaym O, Cetin AE, Elnagar MH.   +5 more
europepmc   +2 more sources

Why sauropods had long necks; and why giraffes have short necks [PDF]

PeerJ 1:e36 (2013), 2012
The necks of the sauropod dinosaurs reached 15 m in length: six times longer than that of the world record giraffe and five times longer than those of all other terrestrial animals.
Taylor, Michael P., Wedel, Mathew J.
core   +4 more sources

Breaking evolutionary and pleiotropic constraints in mammals: On sloths, manatees and homeotic mutations [PDF]

EvoDevo, 2011
Background Mammals as a rule have seven cervical vertebrae, except for sloths and manatees. Bateson proposed that the change in the number of cervical vertebrae in sloths is due to homeotic transformations. A recent hypothesis proposes that the number of
Varela-Lasheras Irma, Bakker Alexander J, van der Mije Steven D, Metz Johan AJ, van Alphen Joris, Galis Frietson   +5 more
doaj   +5 more sources

Joint Vertebrae Identification and Localization in Spinal CT Images by Combining Short- and Long-Range Contextual Information [PDF]

IEEE Transactions on Medical Imaging, 2018
Automatic vertebrae identification and localization from arbitrary CT images is challenging. Vertebrae usually share similar morphological appearance. Because of pathology and the arbitrary field-of-view of CT scans, one can hardly rely on the existence of some anchor vertebrae or parametric methods to model the appearance and shape.
Haofu Liao, Jiebo Luo
exaly   +2 more sources

Evaluation of Radiological and Anatomical Features of Cervical Vertebrae in Adult Persian Cat [PDF]

Veterinary Medicine and Science
Background Radiographic studies of Persian cat's cervical vertebrae can provide us with valuable information used in identifying its anatomical features, investigating various species of Persian cats and evaluating their cervical pathologies.
Peghah Derakhshi, Siamak Alizadeh, Mohammadreza Hosseinchi   +2 more
doaj   +2 more sources

The reliability of a modified three-stage cervical vertebrae maturation method for estimating skeletal growth in males and females [PDF]

BMC Oral Health
Background Reliability of the six-stage cervical vertebrae maturation method to evaluate skeletal growth was evaluated on the combined male and female samples and revealed diverse results.
Tatiana Sella Tunis, Maha Masarwa, Tamar Finkelstein, Osnat Grinstein Koren, Lazar Kats, Yifat Manor, Nir Shpack, Shoshana Reiter   +7 more
doaj   +2 more sources

The effect of intervertebral cartilage on neutral posture and range of motion in the necks of sauropod dinosaurs [PDF]

, 2013
The necks of sauropod dinosaurs were a key factor in their evolution. The habitual posture and range of motion of these necks has been controversial, and computer-aided studies have argued for an obligatory sub-horizontal pose.
A Christian, BD Hultgren, CL Emerson, CM Holliday, CW Gilmore, D Schwarz, E Frey, EC McKenzie, G Dzemski, GS Paul, H Mallison, H Mallison, J Martin, JB Hatcher, JS McIntosh, K Carpenter, K Glass, K Stevens, KA Stevens, KE Whitwell, M Papageorges, Mathew J. Wedel, MF Bonnan, Michael P. Taylor, MJ Cobley, MJ Wedel, MJ Wedel, MJ Wedel, MJ Wedel, MJ Wedel, MP Taylor, MP Taylor, MP Taylor, NPH Hudson, OC Marsh, P Upchurch, PC Wagner, Peter Dodson, PM Sander, PP Vidal, RC Da Costa, RE Levitski, W Graf, W Janensch, WD Matthew, WM McKee   +45 more
core   +20 more sources

Posterior First and Second Cervical Vertebrae Fusion by Screw Fixation Technique using the Modern Pre-fabricated Template Method on Cadaver Samples [PDF]

Malaysian Orthopaedic Journal, 2021
INTRODUCTION: C1 lateral mass and C2 pedicular screws insertion are used for C1-C2 posterior fusion. Fluoroscopy Guided technique is routinely used for screw placement but it is associated with risk of injury to spinal cord and vertebral artery.
Athari M, Golbakhsh MR, Mirbolook A, Athari M, Ahmadi A, Komlakh K, Azarhomayoun A, Paydarniya P   +7 more
doaj   +1 more source