Results 41 to 50 of about 14,844 (154)

双曲型法向圆弧齿轮的设计与运动仿真

Jixie chuandong, 2014
Hyperboloidal-type normal circular-arc gear is a novel technology in which the circular-arc tooth profile is developed into the gear pair with crossed axis.Based on the transmission theory and the mismatch theory,the design method of hyperboloidal-type ...
张小萍, 蔡雄, 杨文祥, 陈厚军
doaj  

A Brazilian anuran (Hylodes magalhaesi: Leptodactylidae) infected by Batrachochytrium dendrobatidis: a conservation concern [PDF]

, 2006
Several studies have associated the chytrid fungus Batrachochytrium dendrobatidis with anuran population declines worldwide. To date, the fungus has been found in Africa, the Americas, Australia, and Europe.
Britto, Fábio B., Carnaval, Ana Carolina O. Q., Haddad, Célio Fernando Baptista, Toledo, Luis Felipe   +3 more
core  

Three-year clinical performance of two indirect composite inlays compared to direct composite restorations [PDF]

, 2013
Objective: Despite the incremental build-up of resin composite restorations, their polymerization shrinkage during curing presents a serious problem.
Demirbuga, Sezer, Erdem, Vildan, Ozakar Ilday, Nurcan, Seven, Nilgun, Yildiz, Mehmet, Zorba, Yahya Orçun   +5 more
core   +1 more source

Virtual brain endocasts of the palaeanodont Metacheiromys marshi and the neurosensory evolution of early Pholidotamorpha

Journal of Anatomy, EarlyView.
We describe the endocranial anatomy of Metacheiromys marshi. Decrease in olfaction and eye movement control occurred through time in Pholidotamorpha and is likely linked to fossorial adaptations. The development of the orbital gyrus might be related to the evolution of myrmecophagy and the emergence of a protrusile tongue in early Pholidotamorpha ...
Eduard Cabasés Bru, Raquel Moya‐Costa, John R. Wible, Stephen L. Brusatte, Ornella C. Bertrand   +4 more
wiley   +1 more source

Perfluorocarbon Enhanced Glasgow Oxygen Level Dependent (GOLD) magnetic resonance metabolic imaging identifies the penumbra following acute ischemic stroke [PDF]

, 2018
The ability to identify metabolically active and potentially salvageable ischaemic penumbra is crucial for improving treatment decisions in acute stroke patients.
Brennan, David, Deuchar, Graeme A., Holmes, William M., Macrae, I. Mhairi, Santosh, Celestine, Shaw, Martin   +5 more
core   +1 more source

Stem Cells From Dental Pulp, Periodontal Tissues, and Other Oral Sources: Biological Concepts and Regenerative Potential

Journal of Periodontal Research, EarlyView.
A graphical abstract recapping the different sources of dental, periodontal, and other oral‐derived mesenchymal stromal cells (MSCs) and their regenerative mechanisms and potentials. The review's article findings bridge fundamental biological science with translational advances, highlighting the significance of MSCs in craniofacial regenerative ...
Karim M. Fawzy El‐Sayed, Sara El Moshy, Israa Ahmed Radwan, Dina Rady, Aiah A. El‐Rashidy, Marwa M. S. Abbass, Christof E. Dörfer   +6 more
wiley   +1 more source

Modeling the growth of stylolites in sedimentary rocks [PDF]

, 2012
[1] Stylolites are ubiquitous pressure solution seams found in sedimentary rocks. Their morphology is shown to follow two self-affine regimes. Analyzing the scaling properties of their height over their average direction shows that (1) at small scale ...
Aharonov, Alexandra Rolland, André, Angheluta, Angheluta, Angheluta, Asaro, Barabási, Bathurst, Baud, Benedicto, Benson, Bonnetier, Brouste, Bushinskiy, Buxton, Cox, Cox, Daniel Koehn, De Giudici, Den Brok, Den Brok, Dunnington, Dysthe, Dysthe, Ebner, Ebner, Ebner, Ebner, Edwards, Fabricius, Fletcher, François Renard, Gonzalez, Gratier, Gratier, Gratier, Gratier, Grinfeld, Gunzburger, Heald, Iijima, Jean Schmittbuhl, Jean-Pierre Gratier, Karcz, Kassner, Katsman, Katsman, Katsman, Koehn, Koehn, Koehn, Koehn, Lind, Misbah, Mollema, Nathalie Conil, Park, Patrick Baud, Railsback, Renard, Renard, Renard, Renaud Toussaint, Rispoli, Roux, Rutter, Rutter, Schmittbuhl, Schmittbuhl, Schutjens, Simonsen, Stockdale, Stockdale, Stockdale, Stutzer, Tanguy, Tembe, Wileveau, Wright, Young, Zhou   +81 more
core   +4 more sources

Soft Tissue Substitutes: Current Biomaterials and Indications at Teeth and Implant Sites

Journal of Periodontal Research, EarlyView.
This manuscript provides an updated overview of the current evidence on soft tissue graft substitutes for teeth and dental implants. When appropriately indicated, these biomaterials offer a reliable, less invasive alternative to autogenous grafts, effectively improving root coverage, keratinized mucosa width, and soft tissue thickness with reduced ...
Lorenzo Tavelli, Daniel Thoma, Maria Elisa Galarraga‐Vinueza, Mario Romandini, Shayan Barootchi   +4 more
wiley   +1 more source

Partial-volume Bayesian classification of material mixtures in MR volume data using voxel histograms [PDF]

, 1997
The authors present a new algorithm for identifying the distribution of different material types in volumetric datasets such as those produced with magnetic resonance imaging (MRI) or computed tomography (CT).
Barr, Alan H., Fleischer, Kurt W., Laidlaw, David H.   +2 more
core   +6 more sources

Bone Grafts: Everything You Need to Know

Journal of Periodontal Research, EarlyView.
This review classifies bone grafts (autograft, allograft, xenograft, synthetic) by source and osteogenic/inductive/conductive potential, linking material properties and mechanisms to clinical indications in periodontal and dental regeneration. Key challenges—limited osteoinduction, poor vascularisation, unbalanced resorption, handling difficulties, and
Håvard Jostein Haugen, Javier Sanz, Giuseppe Perale, Augustine Mark Saiz, Mario Romandini, Maryam Rahmati   +5 more
wiley   +1 more source