Results 101 to 110 of about 1,101,867 (409)

Horizontal saddle-supported storage vessels: A parametric study of plastic collapse loads [PDF]

open access: yes, 2003
Previous work by the present authors compared various theoretical methods with simple experiments for the plastic collapse load on end supported vessels loaded centrally by rigid saddles.
Chan, G.C.M.   +3 more
core   +1 more source

Electrically‐Driven 2D Semiconductor Microcavity Laser

open access: yesAdvanced Materials, EarlyView.
The first electrically‐driven 2D semiconductor microcavity laser is achieved at room temperature under AC voltage driving conditions. The demonstration of the compact 2D TMDC laser establishes a new area of research to assist with the implementation of diverse 2D material‐based practical photonic devices and integrated circuits in the future.
Zheng‐Zhe Chen   +8 more
wiley   +1 more source

An evaluation of mesiodentes: A retrospective study with cone-beam computed tomography [PDF]

open access: yes, 2018
Background: The mesiodens, located in the palatal midline between the two maxillary central incisors, is the most common type of supernumerary tooth. The aim of this study was to evaluate the distribution of mesiodentes according to shape, position, and ...
Akay, Gülsün   +2 more
core   +2 more sources

An Anti‐Myd88 Peptide Synergistically Enhances the Anti‐Inflammatory Effects of Extracellular Vesicles from Naïve Umbilical Cord MSC or HEK293F CD24 Overexpressing Cells

open access: yesAdvanced Materials Interfaces, EarlyView.
This study confirms that extracellular vesicles (EVs) derived from mesenchymal stem cells (MSCs) or HEK293F cells overexpressing CD24 have anti‐inflammatory effects in macrophages and monocytes. Further loading either of these EVs with an anti‐Myd88 peptide synergistically enhanced the anti‐inflammatory effects of the EVs.
Burçin İrem Abas   +6 more
wiley   +1 more source

Efficacy of Periodontal Stem Cell Transplantation in the Treatment of Advanced Periodontitis

open access: yesCell Transplantation, 2011
Periodontitis is the most common cause for tooth loss in adults and advanced types affect 10–15% of adults worldwide. The attempts to save tooth and regenerate the periodontal apparatus including cementum, periodontal ligament, and alveolar bone reach to
Joo-Young Park   +2 more
doaj   +1 more source

Parathyroid hormone receptor signalling in osterix-expressing mesenchymal progenitors is essential for tooth root formation

open access: yesNature Communications, 2016
Dental root formation is a dynamic process in which mesenchymal cells migrate toward the site of the future root, differentiate and secrete dentin and cementum. However, the identities of dental mesenchymal progenitors are largely unknown.
W. Ono   +4 more
semanticscholar   +1 more source

Ultrasound‐Powered, Battery‐Free Implants via Triboelectric Energy Harvesting

open access: yesAdvanced Materials Technologies, EarlyView.
Ultrasound‐driven triboelectric nanogenerators (US‐TENGs) present a promising approach to battery‐free implants by combining body‐safe ultrasound with the material and structural versatility of TENGs. This review categorizes current US‐TENG research into long‐term and transient short‐term applications and discusses key challenges in materials, device ...
Youngwook Chung   +5 more
wiley   +1 more source

A comparison of the precision of three-dimensional images acquired by 2 digital intraoral scanners: effects of tooth irregularity and scanning direction

open access: yesThe Korean Journal of Orthodontics, 2016
Objective The purpose of this study was to compare the precision of three-dimensional (3D) images acquired using iTero® (Align Technology Inc., San Jose, CA, USA) and Trios® (3Shape Dental Systems, Copenhagen, Denmark) digital intraoral scanners, and to ...
Ji-Won Anh   +4 more
semanticscholar   +1 more source

Bringing Competition to Urban Water Supply [PDF]

open access: yes
This paper proposes a market-based reform that would introduce competition into the provision of urban water. This proposal calls for a decoupling of infrastructure control and ownership of water whereby the property rights to water would be transferred ...
Hugh Sibly, Richard Tooth
core   +1 more source

Toward Wireless Implantable Robotic Systems Driven by Magnetic Field for Personalized Therapy

open access: yesAdvanced Robotics Research, EarlyView.
Robotic materials are playing an increasingly vital role in enabling sensing and actuation at small scales. This perspective highlights recent advances in magnetic materials and magnetically actuated devices for wireless sensing, actuation, and energy harvesting toward implantable robotic systems for closed‐loop therapy.
Yusheng Wang, Ruijian Ge, Xiaoguang Dong
wiley   +1 more source

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