Results 91 to 100 of about 65,220 (299)

Influência do tipo de substrato dental e da espessura oclusal de coroas totais de cerâmica na sua resistência à compressão: um estudo, in vitro [PDF]

, 2004
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde. Programa de Pós-Graduação em OdontologiaAtravés deste estudo, in vitro, avaliou-se a influência do tipo de substrato dental e da espessura oclusal de coroas ...
Barros, Beatriz Álvares Cabral de
core  

Tailoring Structure–Property Relationships in π‐Conjugated Heterocyclic Poly(arylene alkylene) Anion‐Exchange Membranes for High‐Performance Water Electrolysis

Advanced Science, EarlyView.
From passive to active ion transport: π‐conjugated heterocycles reconfigure the hydration environment and microphase morphology of p‐terphenyl‐based anion‐exchange membranes, enabling fast hydroxide transport and high‐performance water electrolysis. ABSTRACT Anion‐exchange membrane water electrolysis (AEMWE) is a promising technology for sustainable ...
Qian Wang, Riyang Huang, Wenzhe Zhao, Si Chen, Yunpeng Guo, Yang Wu, Yun Zhao, Patric Jannasch, Jingshuai Yang   +8 more
wiley   +1 more source

Case Report: Endodontic management of a fused maxillary lateral incisor and canine with split

Frontiers in Dental Medicine
BackgroundDental fusion, characterized by the joining of two neighboring tooth germs during odontogenesis, is an uncommon condition affecting approximately 0.1% of the permanent dentition.
Alen Romel, Adithya Kashyap K, S. Vidhyadhara Shetty, K. Harish Shetty, Nikhil Harikrishnan   +4 more
doaj   +1 more source

Plant Metabolites Screening Identifies 7‐epi‐10‐Deacetyltaxol Inhibiting Cell Division by Interfering With the Cell Cycle and Microtubule Organization

Advanced Science, EarlyView.
In this study, an efficient screening system is developed for plant metabolites to find a compound, 7‐epi‐10‐deacetyltaxol, inhibits tissue elongation. It suppresses plant growth through brassinosteroid and microtubule pathways. It is later applied to animal cells and human tumor organoids, resulting in similar cell division suppression. These findings
Yan‐Jie Zhang, Yu‐Xuan Bai, Geng G. Tian, Bin Zhang, Ding‐Yi Lu, Qing‐Ping Yao, Wen‐Hao Tian, Xiao‐Na Wei, Jing‐Ting Yang, Ze‐Yu Xiong, Yi Lu, Yu‐Tong Jiang, Chun‐Hui Cai, Yu‐Ming Lu, Xian‐Qing Jia, Li‐Li Jing, Bao‐Jun Yang, Ying‐Xin Qi, Xin‐Xin Han, Ji Wu, Wen‐Hui Lin   +20 more
wiley   +1 more source

Syntheses, X‐ray Crystal Structures, and Raman Spectra of Self‐Assembled XeO3 Chain and Network Complexes of Polytopic sp2‐ and sp3‐Nitrogen Bases

Angewandte Chemie, EarlyView.
Supramolecular 1‐D, 2‐D, and 3‐D networks comprised of ‐(‐O═Xe(O2)‐‐)‐∞ and ‐(‐Xe(O2)O‐‐‐HO(H)‐‐)‐∞ chains coordinated to polytopic N‐base ligands were synthesized and structurally characterized by X‐ray crystallography. Their Xe‐‐‐N and Xe‐‐‐O bonds are characteristic of σ–hole bonds in which the nucleophilic Lewis base sites of the N‐ligands, H2O ...
James T. Goettel, Hélène P. A. Mercier, Gary J. Schrobilgen   +2 more
wiley   +2 more sources

An Innovative Tray Device to Measure Taper and Relative Parallelism of Abutment Teeth for Fixed Dental Prosthesis

RUHS Journal of Health Sciences
Various methods available to determine parallelism of abutment teeth are either unreliable, require costly instruments, or involve additional complex steps.
Shefali Singla, Lalit Kumar, Charnpreet Singh, Shrishti Bhardwaj, Komalpreet Kaur
doaj   +1 more source

Crowns, coronets, and tiaras : a study of head ornamentation in metals

, 2002
Crowns, coronets and tiaras are rings or circles (full or partial), usually metallic, plain or decorated, worn on the head to show honor, authority or distinction.
Owens, Susan K.
core  

Ether‐Based Electrolytes and the Solvation Structure in Sodium Ion Batteries

Advanced Energy Materials, EarlyView.
Ether electrolytes enable high‐performance sodium‐ion batteries through their unique physicochemical properties, particularly distinctive solvation structures and co‐intercalation behavior. However, the localized solvation structure and its dynamic evolution during electrochemical processes remain a “black box”.
Jiaxin Ding, John T. S. Irvine
wiley   +1 more source

Deprotonation and Alkylation of Weakly Acidic C(sp3)─H Bonds Through In Situ Generation of a Strong Hydride Base From 1,1,3,3‐Tetramethyldisiloxane and Potassium tert‐Butoxide

Angewandte Chemie, EarlyView.
The use of 1,1,3,3‐tetramethyldisiloxane (TMDSO) and potassium tert‐butoxide enables direct alkylation of weakly acidic carbon–hydrogen bonds with alkyl halides. Experimental and computational studies support the formation of a substrate‐associated hydride‐like base, providing a single‐step alternative to the classical deprotonation and electrophile ...
Piers St. Onge, Brandon White, Han Yao, Travis Dudding, Stephen G. Newman   +4 more
wiley   +2 more sources

Crowns as Retracts

, 2022
Abstract We characterize finite, connected posets $P$ having a crown as retract. We define a multigraph $\mathfrak{F}(P)$ whose vertices are the so-called improper 4-crowns contained in the extremal points of $P$ , and we show that $P$ contains a 4-crown as retract iff there exists a graph homomorphism of a certain type from $\mathfrak{F}(P ...
openaire   +2 more sources