Results 71 to 80 of about 1,124,464 (249)

Image analyses of collagen types and thickness in oral sub mucous fibrosis stained with picrosirius red under polarizing microscope

Journal of Orofacial Sciences, 2013
Context: Oral submucous fibrosis (OSF) is a potentially malignant oral disorder leading to increased fibrosis in the sub-epithelial layer. The collagen in the condition has been a subject of intense scrutiny in an attempt to understand the pathogenesis ...
Venkatesh V Kamath, Krishnanand Satelur, Y Komali, Shruthi S Krishnamurthy   +3 more
doaj   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

Advanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite, Lilia Huynh, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin   +5 more
wiley   +1 more source

Effects Of Pamidronate On Dental Enamel Formation Assessed By Light Microscopy, Energy-dispersive X-ray Analysis, Scanning Electron Microscopy, And Microhardness Testing

, 2017
The aim of the present work was to investigate birefringence and morphology of the secretory-stage enamel organic extracellular matrix (EOECM), and structural and mechanical properties of mature enamel of upper incisors from adult rats that had been ...
Renan F.; Line, Ana P.; do Espirito Santo, Pablo de M.; Toralles, Soares, Maria das G. F.; Santos, Sergio R. P.; Pinto, Maria Betania P.; do Espirito Santo, Alexandre R.   +7 more
core   +1 more source

Observation of an anomalous SmA-SmC-SmA phase sequence in a bent-core liquid crystal derived from 4-cyanoresorcinol

Physical Review Research, 2020
The physical properties and the phase transitions of a smectic liquid crystal material built from achiral bent-core molecules are investigated by electro-optics, polarizing microscopy, birefringence, and spontaneous polarization.
Yu. P. Panarin, S. P. Sreenilayam, V. Swaminathan, C. Tschierske, J. K. Vij   +4 more
doaj   +1 more source

Analysis of the distribution of microfractures and micropores within granitic rock using simultaneous polarization–fluorescence microscopy

Heliyon, 2020
The analysis of the distribution of microfractures and micropores is important to accurately characterise mass transfer within a rock body. In this paper, a new ‘simultaneous polarization–fluorescence microscopy’ method is presented, which can be used to
Takashi Yuguchi, Akane Usami, Masayuki Ishibashi   +2 more
doaj   +1 more source

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

Polarizing Microscope

, 1880
This polarizing petrographic microscope was built by Nachet of Paris in 1880. It is equipped with eye pieces, objectives, wave-length plates, and features for observing interference figures.
Nachet (Paris)
core  

Novel oligocarbosilazanes bearing promesogenic end groups

eXPRESS Polymer Letters, 2009
A series of novel oligomers with promesogenic groups on both termini were prepared by a hydrosilylation reaction between well-defined telechelic oligocarbosilazanes end-fitted with vinylsilane (SiVi) groups and promesogenic compounds containing one ...
doaj   +1 more source

Interpretation of petrographic anisotropy in ornamental granites based on P wave velocity measurements

Materiales de Construccion, 2020
The existence of a possible anisotropy, determined by the orientation of any mineral or by micro­crack network in granite rock, isn´t easily detected by the naked eye.
L. Calleja, V. G. Ruiz de Argandoña, N. Sánchez-Delgado, A. Setién   +3 more
doaj   +1 more source

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

Advanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa, Milan Buttberg, Ke Ran, Rana Walied Ahmad, Dennis Braun, Lukas Völkel, Jimin Lee, Sofía Cruces, Bart Macco, Bárbara Canto, Holger Lerch, Thorsten Wahlbrink, Holger Kalisch, Michael Heuken, Andrei Vescan, Joachim Mayer, Zhenxing Wang, Ilia Valov, Stephan Menzel, Max C. Lemme   +19 more
wiley   +1 more source