Results 111 to 120 of about 25,698 (308)

Study on the Shape Memory Performance of 4D‐Printed Auxetic Cellular Structures with Energy Absorption Application

Macromolecular Materials and Engineering, EarlyView.
4D‐printed auxetic cellular structures made from PETG demonstrate almost complete recovery of shape and mechanical properties after repeated loading. Two strategies successfully addressed the low shape‐fixity issue, the primary limitation of cold programming.
Mehdi Shadman, Hamed Ahmadi, Davood Rahmatabadi, Morteza Seidi   +3 more
wiley   +1 more source

Lions as Bone Accumulators? Exploring Multi‐Predator Contributions to the Olduvai Carnivore Site (OCS) (Tanzania) Through AI and Metric Analyses

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT Lions (Panthera leo) are apex predators with a well‐documented influence on ecological dynamics, yet their potential role as bone‐accumulating agents remains poorly understood and often debated. Previous taphonomic studies have largely attributed bone accumulations in African savannah ecosystems to other carnivores, such as spotted hyenas ...
Blanca Jiménez‐García, Enrique Baquedano, Manuel Domínguez‐Rodrigo   +2 more
wiley   +1 more source

Abrasion of Tooth Enamel by Removable Partial Denture Clasps.

Nihon Hotetsu Shika Gakkai Zasshi, 1993
The purpose of this study was to investigate the abrasion of tooth enamel by removable partial denture clasps. In vivo, replica of abutment tooth of removable partial denture was observed by SEM. In vivo, abrasion test of extracted tooth by experimental clasp made by 12% Au-Pd-Ag alloy was carried out.
Kenn Kashima, Makoto Sakai, Mutsuo Yamauchi, Tooru Nagasawa   +3 more
openaire   +2 more sources

Dental composites: a comprehensive review on formulation, properties and recent developments

Polymer International, EarlyView.
Dental composites are essential in modern restorative dentistry; this review covers their development, composition, key properties and recent advances, highlighting new technologies for optimizing materials and improving clinical outcomes. Abstract Dental composites have evolved considerably since their introduction, becoming the cornerstone of modern ...
Rayenne Latoui, Djallel Bouzid, Olivier Boyron   +2 more
wiley   +1 more source

Avaliação de hábitos de higiene bucal, hábitos alimentares e pH salivar em pacientes com ausência e presença de lesões cervicais não cariosas

Revista de Odontologia da UNESP
OBJETIVO: Avaliar hábitos de higiene bucal, hábitos alimentares e pH salivar em pacientes com ausência e presença de lesões cervicais não cariosas. MÉTODO: Por meio de um estudo transversal, foram avaliados 88 pacientes, de ambos os sexos, feminino (63,6%
Viviane Maria Gonçalves de Figueiredo, Rosenês Lima dos Santos, André Ulisses Dantas Batista   +2 more
doaj  

Pop-Cola Acids and Tooth Erosion: An In Vitro, In Vivo, Electron-Microscopic, and Clinical Report

International Journal of Dentistry, 2010
Introduction. Manufactured Colas are consumed universally as soft drinks. Evidence about the acid contents of Cola-beverages and its effects on teeth is rare. Aim.
Amirfirooz Borjian, Claudia C. F. Ferrari, Antoni Anouf, Louis Z. G. Touyz   +3 more
doaj   +1 more source

Resource reallocation across successive systemic innovations: How Rolls‐Royce shaped the evolution of the turbojet, turboprop, and turbofan

Strategic Management Journal, EarlyView.
Abstract Research Summary Despite the importance of resource reallocation in shaping a variety of strategic outcomes, strategy scholars have paid only limited attention to the processes by which firms reallocate their resources across successive systemic innovations.
Gino Cattani, Mariano Mastrogiorgio, Giuseppe Carignani   +2 more
wiley   +1 more source

Altering Occlusal Vertical Dimension Provisionally with Base Metal Onlays: A Clinical Report [PDF]

, 2008
This article presents a method for altering occlusal vertical dimension (OVD) to restore dentitions with limited restorative space due to loss of tooth structure.
Kuracina, Jennifer, Monaco, Jr., Edward A., Prasad, Soni   +2 more
core   +1 more source

Quantitative micro‐XRF combined with X‐ray imaging reveals correlations between Zn concentration and dentin tubule porosity across entire teeth

VIEW, EarlyView.
The combination of calibrated micro‐CT and quantitative micro‐XRF measurement facilitates the correlation of density and composition in the 3D macro‐structure of teeth. Zn concentration in dentin increases by a factor of 10 toward the pulp. Incidentally, the overall density decreases, showing an association between Zn and the dentin tissue porosity ...
Ioanna Mantouvalou, Leona Johanna Bauer, Vinh‐Binh Truong, Yannick Wagener, Frank Förste, Oleksandra Marushchenko, Stephan Werner, Franco Lizzi, Frank Wieder, Timo Wolff, Birgit Kanngießer, Paul Zaslansky   +11 more
wiley   +1 more source

Feeding Management of African Rhinos (Ceratotherium simum, Diceros bicornis) in European Zoos

Zoo Biology, EarlyView.
The average estimated diets (in % dry matter) of white rhinos (C. simum) and black rhinos (D. bicornis) in European zoos differ in the proportion of (pelleted) compound feed and other non‐forage items. The reason for this difference is elusive but possibly related to creating more complicated diets for browsers. ABSTRACT White rhinos (WR, Ceratotherium
Gila Sauspeter, Marcus Clauss, Sylvia Ortmann, Andrew J. Abraham, Rebecca Biddle, Lars Versteege, Marcin Przybyło   +6 more
wiley   +1 more source