Results 61 to 70 of about 5,142,406 (244)

Tracheal chambers as a key innovation for high‐frequency emission in bat echolocation

The Anatomical Record, EarlyView.
Abstract Key innovations are pivotal for biodiversity and facilitating evolutionary success, enabling organisms' adaptation to various ecological niches through the diversification of phenotypic traits. In mammals, notable adaptations include evolving hypsodonty for grazing on grasses and, for bats, evolving echolocation and wing acquisition.
Nicolas L. M. Brualla, Laura A. B. Wilson, Khizar Hayat, Michael Doube, Vuong Tan Tu, Thongchai Ngamprasertwong, Thanakul Wannaprasert, Daisuke Koyabu   +7 more
wiley   +1 more source

Osteology of the pectoral girdle and forelimb of Siriusgnathus niemeyerorum, a Late Triassic traversodontid cynodont from Brazil

The Anatomical Record, EarlyView.
Abstract Traversodontids are non‐mammaliaform cynodonts, herbivorous to omnivorous, that lived during the Triassic. In the Late Triassic, some members of this group increased in body size relative to other cynodont lineages and evolved postcranial adaptations associated with locomotion.
Jhonata H. A. Martins, Leonardo Kerber
wiley   +1 more source

The Development and Experimental Validation of a Real-Time Coupled Gear Wear Prediction Model Considering Initial Surface Topography, Dynamics, and Thermal Deformation

Machines
Errors affect the actual meshing process of gears, alter the actual wear pattern of the tooth profile, and may even impact the overall service life of machinery.
Jingqi Zhang, Jianxing Zhou, Quanwei Cui, Ning Dong, Hong Jiang, Zhong Fang   +5 more
doaj   +1 more source

A proposed system for screening tooth wear

, 2010
This paper presents a useful and convenient way to record the severity of tooth wear for patients seen in primary care. The index developed in collaboration with colleagues in Europe because there is widespread belief that tooth wear and in particular ...
Bartlett, D., D. Bartlett
core   +1 more source

Clinical monitoring of tooth wear progression in patients over a period of one year using CAD/CAM [PDF]

, 2016
Objective: To clinically monitor the progression of tooth wear over a period of one year in a cohort of referred tooth wear patients through the use of a CAD/CAD scanner and a standardised scanning/ assessment methodology.
Whitters, John, Khaled Ahmed, Pierce, SG, MacLeod, Charles N, Xiangyang Ju, Ju, Xiangyang, Pierce, S Gareth, Whitters, CJ, Ju, X, Colin Murray, Ahmed, Khaled E., Pierce, S. Gareth, Murray, Colin A, S Pierce, MacLeod, Charles N., Ahmed, KEFAMS, John Whitters, Charles MacLeod, Murray, Colin A., MacLeod, CN, Murray, CA, Ahmed, Khaled E   +21 more
core   +1 more source

Variable grouping patterns in primates: A test of the better competitor hypothesis in male Verreaux's sifaka (Propithecus verreauxi)

The Anatomical Record, EarlyView.
Abstract Intraspecific variation in social organization (IVSO) within primate populations can arise due to male mating competition. Verreaux's sifaka (Propithecus verreauxi) populations exhibit both single‐male and multi‐male groups, providing an opportunity to examine the relationship between male competitive ability and social organization.
Lemeng Li, Stacey R. Tecot, Rebecca J. Lewis   +2 more
wiley   +1 more source

Comparison of the effect of monolithic and layered zirconia on natural teeth wear: An in vitro study

The Journal of Indian Prosthodontic Society, 2018
Aim: The aim of this study is to compare wear of the natural teeth against monolithic zirconia and layered zirconia with different surface finishing procedures such as unpolished unglazed, polished unglazed, and polished glazed.
Yamini Gundugollu, Ravi Shankar Yalavarthy, M Hari Krishna, Srinivas Kalluri, Shameen Kumar Pydi, Satyendra Kumar Tedlapu   +5 more
doaj   +1 more source

Geometric model of height of microroughness on machined surface taking into account wear of face mill teeth

, 2013
The present paper describes a geometric model of the height of microroughness on the machined flat surface after the face milling with the account of wear of tools.
Pimenov D.Y.
core   +1 more source

Postnatal craniomandibular growth in Harbor seals (Phoca vitulina vitulina)

The Anatomical Record, EarlyView.
Postnatal ontogeny in Harbor seals (Phoca vitulina vitulina). Cranium and mandible grow rapidly until 5 years of age, followed by a deceleration and finally a stagnation. Abstract As secondarily aquatic carnivores, seals display several phenotypic differences compared to their terrestrial relatives.
Elisabeth Steinbach, Julia Schaar, Christine Böhmer   +2 more
wiley   +1 more source

Research on the Wear Characteristics of the Hook Teeth of Cotton Pickers

, 2022
As a key core component of cotton pickers, the spindle is prone to wear of the hook teeth. This research explores the wear characteristics of the spindle hook teeth of cotton pickers under different working areas.
Jia Li, Yanqing Gu, Xintian Du, Hongwen Zhang, Haiyang Li, Hongbiao Wang, Yichen Tao, Xiuqing Fu   +7 more
core   +1 more source