Results 81 to 90 of about 56,019 (269)

The elusive scleral cartilages: Comparative anatomy and development in teleosts and avians

The Anatomical Record, EarlyView., 2023
Abstract The sclera of all vertebrate eyes is comprised of connective tissue, with some organisms developing cartilage within this tissue. A review of the cartilages that have been described in the vertebrate sclera and their anatomical relationships is discussed together with their potential homology.
Tamara A. Franz‐Odendaal
wiley   +1 more source

A comparative evaluation of five obturation techniques in the management of simulated internal resorptive cavities: An ex vivo study

Journal of Pharmacy and Bioallied Sciences, 2019
Background: Root resorption is the loss of dental hard tissues as a result of clastic activities. It might be broadly classified into external or internal resorption by the location of the resorption in relation to the root surface.
Mathew J Elenjikal, Abhilash A Latheef, Mohammed A M Kader, Sivadas Ganapathy, Ahmed B Mohamed, Shan S Sainudeen, Anshad M Abdulla, Shahabe S Saquib   +7 more
doaj   +1 more source

Locking in Color: Stable RGB Perovskite Nanocrystal Films via UV Cross‐Linking

Advanced Optical Materials, EarlyView.
Combining block copolymer stabilized lead halide nanocrystals with a UV light‐based cross‐linking procedure yields ultra‐stable nanocrystal thin films, which are resistant to dissolution by organic solvents and impervious to interlayer ion exchange. This allows for the fabrication of stacked layer RGB all‐perovskite white light‐emitting phosphors with ...
Patrick Ganswindt, Isabella Tepfenhart, Andreas Singldinger, Anna Abfalterer, Laura Spies, Ekaterina Kostyurina, Mareike Stadler, Bert Nickel, Alexander S. Urban   +8 more
wiley   +1 more source

Cone Beam Computed Tomography (CBCT) Aid in the Management of Apical Root Resorption of Impacted Maxillary Canines and Physiologically Erupted Maxillary Canines after Orthodontic Treatment

Applied Sciences
The aim of this study is to evaluate the effects of orthodontic traction, by means of light and controlled forces, on root length in impacted maxillary canines and physiologically erupted maxillary canines. Disinclusion of impacted maxillary canines is a
Edoardo Bianco, Luca Mirabelli, Michele Basilicata, Giovanni Bruno, Alberto De Stefani, Linda Du, Marcello Maddalone   +6 more
doaj   +1 more source

Sharp Curvature of Premolar Resulting in External Apical Root Resorption of the Neighbouring Molar

Case Reports in Dentistry, 2011
This case report describes an external apical root resorption resulted from the unusual root morphology of the neighbouring tooth. A 28-year-old female was referred to the department of endodontics with a complaint of intense pain in her maxillary second
Özgür İlke Atasoy Ulusoy
doaj   +1 more source

Suppressed Stokes Shifts and Hot Luminescence from Quantum Dots within Plasmonic Nanocavities

Advanced Optical Materials, EarlyView.
This study demonstrates the suppression of the Stokes shift in lead sulfide quantum dots through integration with plasmonic nanocavities. By enhancing spontaneous emission and altering exciton relaxation pathways, this approach enables direct band‐edge emission with improved radiative efficiency, highlighting the powerful role of nanophotonic ...
Junyang Huang, Shu Hu, Adam Roach, Angus Crookes, Niclas S. Mueller, Junzhi Ye, Lukas A. Jakob, Yuling Xiong, Shijie Zhu, Akshay Rao, Angela Demetriadou, Liangfeng Sun, Jeremy J. Baumberg   +12 more
wiley   +1 more source

Morphometric evaluation of external root resorption of mandibular second molar teeth adjacent to the impacted third molars in CBCT imaging of Tehran\'s population between 2011-2014

Majallah-i Dānishgāh-i ’Ulūm-i Pizishkī-i Shahīd Ṣadūqī Yazd, 2017
Introduction: Presence of external root resorption in second molars associated with impacted mandibular third molars was not rare. The neglect of this issue may leads to penetration of the pulp and loss of the second molars.
Fatemeh Ezoddini Ardakani, Yaser Safi, Golshan Jamali   +2 more
doaj  

Rootless existence: A case report of internal resorption

Journal of International Clinical Dental Research Organization, 2018
Internal resorption is a relatively rare resorption of dentine, which starts in the pulpal cavity either in the pulpal chamber or in the root canal and destroys surrounding dental hard tissues. The initiating factor in internal root resorption is thought
Shrikant Subhash Dusane, Kanchan Rajesh Raikwar, Bhushan Ramdas Bhagat, Rajendra Kumar Suryavanshi   +3 more
doaj   +1 more source

Enhancing Amplified Spontaneous Emission in Perovskite Thin Films by Thickness Regulation: Insights into Carrier Distribution and Optical Confinement

Advanced Optical Materials, EarlyView.
This study reveals the critical influence of film thickness and excitation wavelength on the ASE threshold in metal halide perovskites. By optimizing these factors, the ASE threshold is significantly reduced, providing key insights into optical confinement and carrier distribution for advancing electrically pumped perovskite lasers.
Yulin Mao, Hao Gu, Yueyang Wang, Gang Wang, Bingzhe Wang, Guoxing Sun, Wei Huang, Guichuan Xing   +7 more
wiley   +1 more source

Drawing a Rooted Tree as a Rooted $y-$Monotone Minimum Spanning Tree [PDF]

arXiv, 2018
Given a rooted point set $P$, the rooted $y-$Monotone Minimum Spanning Tree (rooted $y-$MMST) of $P$ is the spanning geometric graph of $P$ in which all the vertices are connected to the root by some $y-$monotone path and the sum of the Euclidean lengths of its edges is the minimum. We show that the maximum degree of a rooted $y-$MMST is not bounded by
arxiv