bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impact of Immediate Dentin Sealing Using Universal Adhesive under Simulated Pulp Pressure on Microtensile Bond Strength of Indirect Resin Composite Restorations and Dentin Permeability
Authors: Abo-Alazm Emad Abd Elfatah , Safy Rehab Khalil 
Published: November 2021

Abstract
Objective The aim of this study was to investigate the effect of immediate dentin sealing (IDS) technique using universal adhesive under simulated pulp pressure on microtensile bond strength (μTBS) of indirect resin composite restorations and dentin permeability.
Materials and Methods Fifty extracted caries-free human third molars were used for specimens' preparation. Each molar's occlusal table was abraded flat and their roots were separated under continuous water cooling. Forty specimens were used for microtensile bond strength test (μTBST) evaluation. The μTBST specimens were randomly assigned to two groups according to the dentin sealing time; Immediate dentin sealing (IDS) and delayed dentin sealing (DDS). Each group was further subdivided into two subgroups according to the adhesive system used for dentin sealing: iBOND self-etch adhesive and GLUMA Bond Universal. All specimens were exposed to simulated pulp pressure for 1 week then restored using computer-aided design/computer-aided manufacturing (CAD/CAM) resin composite blocks. The μTBS was evaluated for all tested subgroups after 24 hours and 6 months of water storage. The remaining 10 teeth were used for the preparation of dentin discs for dentin permeability evaluation. They were divided into two groups according to type of self-etch adhesive used. Fluid filtration rate was evaluated after etching, with smear layer and after adhesive application. Results obtained were statistically analyzed using Shapiro–Wilk test and Weibull analysis.
Results Statistically significant difference was recorded between µTBS mean values of both IDS and DDS techniques at 24 hours and after 6 months of water storage. GLUMA Bond Universal adhesive had significantly higher bond strength compared with iBond at both IDS and DDS techniques, but both adhesives showed a significant reduction in the Weibull characteristic strength after 6 months of water storage. Significant reduction in dentin permeability was recorded by both adhesives without any significant difference between them.
Conclusions The IDS technique using universal adhesive in self-etch mode is an effective strategy for improving the final bond strength of CAD/CAM resin composite restorations and reducing dentin permeability.
Osteoblastoma agressivo recorrente da coluna cervical tratado com sucesso com radioterapia
Authors: Anjos Gabriel Marques dos , Bassan Marcos Antonio Freiberger , Gössling Gustavo , Pereira Fernando de Souza , D'Avila Rui , Izetti Patrícia 
Published: November 2021

ResumoO osteoblastoma é uma doença benigna geralmente tratada com ressecção completa com intenção curativa e é responsável por 14% dos tumores ósseos benignos. Uma apresentação mais incomum refere-se a uma rápida apresentação em massa conhecida como osteoblastoma agressivo. Relatamos o caso de um jovem com inchaço cervical devido a uma massa progressiva no lado direito do pescoço com 3 meses de evolução. A biópsia incisional demonstrou osteoblastoma grau 3. Tentou-se uma ressecção cirúrgica radical, mas a ressecção completa não foi viável por causa da invasão cervical de C3 sem envolvimento espinal. Apesar da falta de dados robustos, a radioterapia modulada de intensidade foi realizada na região cervical ipsilateral em uma dose de 50 Gy em 25 frações até novembro de 2013. O paciente está sendo seguido regularmente sem evidências de recorrência desde então. O tratamento até agora bem-sucedido destaca a importância de uma abordagem multidisciplinar para o tratamento de pacientes com osteoblastoma agressivo.
Ethnic identity: peculiarities of interaction between family values and multi-ethnic student environment through the example of Dagestani students
Authors: Gasanova Saida 
Published: November 2021

AbstractThis study focused on the issue of ethnic identity of students as a process of interaction between the family upbringing values and multi-ethnic university environment on the example of Daghestani students of Moscow universities. The central study objective was to determine the effect of family values on the formation of national identity in students, as well as to identify whether there are any statistical differences in these terms between males and females. A total study sample included 214 Daghestani students from 15 Moscow universities distributed into two groups: experimental one (composed of Dagestanis) and control (multi-ethnic group). The research participants were asked to specify their national identity and assess the use of their mother tongue as an identifier. The null hypothesis of this study suggested that there are no significant differences between the assessments of Dagestani males and females towards traditional family values and no significant differences in ethnic identification between students of the experimental and control groups. The groups were compared based on the results of Pearson’s chi-squared test and Pearson’s correlation coefficient calculation. As a consequence, the null hypothesis was confirmed only for the students of the 4th and 5th study years. The practical value of the collected findings resides in their possibility to be used to address psychological problems in multi-ethnic student groups and create optimal conditions for personal development and ethnic identification of students.
From speech to language
Authors: Chen Helen Kai-Yun , Tseng Chiu-yu 
Published: November 2021

AbstractThis study proposes a novel exploration of perceived prosodic highlights in continuous speech, focusing on the alternative function of indexing and projecting information content deployment in the speech context. Given the assumption that prosodic highlight allocation directly reflects the interlocutors’ information content deployment, this study foregrounds perception-based prominences for indexing both the key information (KEY) and the projector (PJR) that projects the deployment of key/focal information. Two information content planning units (PJR plus its respective projection PJN, and KEY) prompted by prosodic highlights were established, based on quantitative analyses and discriminative acoustic features. Additional analyses confirm a generalheavy-to-lightinformation distribution across both units, showcasing that the relative projection trajectory size in the PJR-PJN unit is positively correlated to its position within discourse-prosodic units. Current results, therefore, directly substantiate the cognitive explanation of prosodic projection in speech, as evidence beyond syntactic relationships are drawn and prosodic projection is shown to involve perceived prosodic highlight allocation and information deployment in a fixed pattern. Explorations of prosody-prompted projection shed light on a more comprehensive account of the mechanism behind information planning, hence facilitating a deeper understanding of the composition of context prosody and the derivation of linguistic invariants from speech.
A modified multiplexed vortex helico-conical petal-like zone plate
Authors: Xia Tian , Cheng Shubo , Xie Wenke , Tao Shaohua 
Published: November 2021

Abstract
A modified multiplexed vortex helico-conical petal-like zone plate (MMVHPZP) is proposed to generate a polygon-like beam or light-arm beam with an adjustable opening. The MMVHPZP consists of the modified helico-conical petal-like zone plate (MHPZP) with the topological charge l and exponent n, and the multiplexed vortex spiral phase plate (MVSPP) with the inner topological charge l
1 and outer topological charge l
2. Moreover, when l
1 is equal or unequal to l
2, the MMVHPZP has the adjustable polygon-like beam or light-arm beam, respectively. In addition, when n is small or large, the number of arms is equal to the absolute difference between l
1 and l
2 or the sum of one and the absolute difference between l
1 and l
2, respectively. Furthermore, for the different l
1 or l
2, the opening is constant. With the increase of the n or l, the opening is larger. When l
1 is greater or less than l
2, the rotation direction of arms is the anticlockwise or clockwise direction, respectively.
Photometric and Spectroscopic Analysis of LBV Candidate J004341.84+411112.0 in M31
Authors: Sarkisyan A. , Sholukhova O. , Fabrika S. , Valeev A. , Valcheva A. , Nedialkov P. , Tatarnikov A. 
Published: November 2021

Abstract
We study Luminous Blue Variable (LBV) candidate J004341.84+411112.0 in the Andromeda galaxy. We present optical spectra of the object obtained with the 6 m telescope of BTA SAO RAS. The candidate shows typical LBV features in its spectra: broad and strong hydrogen lines and the He i lines with P Cygni profiles. Its remarkable spectral resemblance to the well known LBV P Cygni suggests a common nature of the objects and supports LBV classification of J004341.84+411112.0. We estimate the temperature, reddening, radius and luminosity of the star using its spectral energy distribution. Obtained bolometric luminosity of the candidate (M
bol = −10.41 ± 0.12 mag) is quite similar to those of known LBV stars in the Andromeda galaxy. We analyzed a ten year light curve of the object in R filter. The candidate demonstrates photometric variations of the order of 0.4 mag, with an overall brightness increasing trend ΔR > 0.1 mag. Therewith, the corresponding color variations of the object are fully consistent with LBV behavior when a star become cooler and brighter in the optical spectral range with a nearly constant bolometric luminosity. LBV-type variability of the object, similarity of its spectrum and estimated luminosity to those of known LBVs allow us to classify J004341.84+411112.0 as an LBV.
Effect of the lattice mismatch on the efficiency of the GaAs nanowire/Si substrate solar cell
Authors: Alekseev P A , Sharov V A , Borodin B R , Dunaevskiy M S , Reznik R R , Cirlin G E 
Published: November 2021

Abstract
The effect of the crystal lattice mismatch between single p-GaAs nanowire grown on p-Si substrate on the solar cell efficiency is studied. The study is performed by measuring the I-V curves under red (wavelength=650 nm) laser illumination. The measurement of the single nanowire was done by conductive atomic force microscopy (C-AFM). The measured curve was reproduced by numerical simulations accounting piezoresistance and piezoelectric effects. The analysis demonstrated the presence of the tensile (2%) zinc blend insert at the interface between nanowire and substrate induced by crystal lattices mismatch. Strained insert at the interface changes the polarity of the photogenerated current and increases the efficiency by 2 times.
Enhancement of second harmonic generation in a layered MoS2 nanoresonator
Authors: Antropov I.M. , Popkova A.A. , Tselikov G.I. , Volkov V.S. , Bessonov V.O. , Fedyanin A.A. 
Published: November 2021

Abstract
Molybdenum disulfide (MoS2) is a layered material with a high refractive index in the visible and infrared spectral range. In this work, we theoretically and experimentally demonstrate Mie-resonant MoS2 nanodisks. We show enhanced second harmonic generation from MoS2 nanodisk resonators due to the overlap of Mie-type resonances at the fundamental wavelength with the C-exciton resonance at the second-harmonic wavelength.
Polarization degeneracy of TE and TM eigenmodes for dielectric metasurface in the microwave
Authors: Asadulina Syuzanna , Bogdanov Andrey , Glybovski Stanislav , Yermakov Oleh 
Published: November 2021

Abstract
We analyze the TE-TM polarization degeneracy of the guided modes of a dielectric metasurface in the microwave frequency range. We find the optimum metasurface design and investigate the dependence of the degeneracy degree on the propagation direction. Finally, we simulate the possible microwave experiment demonstrating the extraction of isofrequency contours for this metasurface. The results obtained could be useful for flat photonic devices with the function of polarization control.
Large-scale ReRAM device based on HKUST-1 thin film
Authors: Bachinin Semyon V. , Rzhevskiy Sergey S. , Milichko Valentin A. 
Published: November 2021

Abstract
The humanity creates more and more information every day. This aspect collides on a big problem – storage and processing. We can separate this problem on two tasks – choose some technologies which can satisfy modern requirement and searching new perspective material suitable for creating data-storage device. Herein, we demonstrate a concept of solving this problem by matching ReRAM – technology and metal-organic frameworks. We have achieved significant results and created a large-scale device with remarkable characteristics on/off ration.
Fabrication of Au and Ag – Coated AFM Probes for Tip-Enhanced Raman Spectroscopy
Authors: Basalaeva L S , Kurus N N , Rodyakina E E , Anikin K V , Milekhin A G 
Published: November 2021

Abstract
In this work, approaches for fabrication metal coated probes for Tip Enhanced Raman Spectroscopy (TERS) are considered. It was proposed to use optical characterization of probes to achieve the effective TERS of semiconductor nanoobjects. The shape and size of the metal cluster at the tip apex determines the position of the localized surface plasmon resonance, the electromagnetic field enhancement and, thus, TERS performance. The possibility of optimizing the characteristics of the probes for TERS studies of nanoobjects has been investigated.
Altering the distribution of excited-state lifetimes in aminated GFP chromophores by Ag nanohole arrays
Authors: Aslopovsky VR , Shakhov AM , Astafiev AA , Bochenkov VE 
Published: November 2021

Abstract
Fluorescence of the modified GFP chromophore diethyl-ABDI-BF2 dispersed in PMMA matrix is studied on top of glass, continuous and perforated optically thin silver films. In polymer, the fluorescence decay kinetics becomes non-exponential and can be described by the distribution of rate constants. The results demonstrate shortening of the excited state lifetime in the presence of silver and broadening of the lifetime distribution caused by the nanoholes.
Mechanical scanning probe lithography of nanophotonic devices based on multilayer TMDCs
Authors: Borodin B R , Benimetskiy F A , Davydov V Yu , Eliseyev I A , Lepeshov S I , Bogdanov A A , Alekseev P A 
Published: November 2021

Abstract
In this work, we demonstrate the possibility of using mechanical Scanning probe lithography (m-SPL) for fabricating nanophotonic devices based on multilayered transition metal dichalcogenides (TMDCs). By m-SPM, we created a nanophotonic resonator from a 70-nm thick MoSe2 flake transferred on Si/Au substrate. The optical properties of the created structure were investigated by measuring microphotoluminescence. The resonator exhibits four resonance PL peaks shifted in the long-wavelength area from the flake PL peak. Thus, here we demonstrate that m-SPL is a high-precision lithography method suitable for creating nanophotonic devices based on multilayered TMDCs.
On the link between mean square-radii and high-order toroidal moments
Authors: Borovkov Dmitrii , Valero Adrià Canós 
Published: November 2021

Abstract
Multipole expansions of the source play an important role in a broad range of disciplines in modern physics, ranging from the description of exotic states of matter to the design of nanoantennas in photonics. Within the context of the latter, toroidal multipoles, a third group of multipoles complementing the well-known electric and magnetic ones, have been widely investigated since they lead to the formation of non-radiating sources. In the last years, however, the photonics community has brought to light the existence of a fourth type of multipoles that is commonly overlooked. Currently, different groups have provided different mathematical expressions to describe such sources, and they have been coined with different names; on the one hand mean-square radii, and on the other hand, as high order toroidal moments. Despite their clear physical similarity, a formal relation between the two has not yet been established. While explicit formulas for both types have been derived, they are not expressed in the same basis, and therefore it is not possible to draw a clear physical connection between them. In this contribution, we will bridge this gap and rigorously derive the connection between the two representations, taking as an example the cases of the nth order mean square radius of the electric dipole and the nth order electric toroidal dipole. Our results conclusively show that both types of representations are exactly equivalent up to a prefactor.
Directional luminescence of the diamond NV center via Bloch surface waves in one-dimensional photonic crystals
Authors: Bragina A A , Safronov K R , Bessonov V O , Fedyanin A A 
Published: November 2021

Abstract
In this work, we numerically study the luminescence of nanodiamonds with NV centres embedded in a polymer layer on the surface of one-dimensional photonic crystal. The interaction of NV center spontaneous emission with the Bloch surface wave (BSW) is demonstrated. The presence of a photonic crystal leads to a change in the angular distribution of the emitter radiation due to the coupling of luminescence to BSW. We show that the best coupling efficiency of 71% is observed when NV centres are located in the close proximity to the BSW field maximum.
Extracting Dielectric Permittivity with a Cross-Like Stripline
Authors: Burtsev Vladimir , Vosheva Tatyana , Filonov Dmitry 
Published: November 2021

Abstract
Parametric retrieval of electromagnetic properties is important for both new materials characterization and an accurate design of devices. While quite a few techniques have been developed over the years, precise mapping of high-permittivity samples remain challenging. Here we advance a so-called micro-strip technique, where transmission coefficients of a waveguide system with an analyte on top are used to extract electromagnetic parameters of the later. Our cross-like strip line configuration has a split ring resonator on one edge and an open circuit termination on another. This design allows performing a simultaneous test of cylindrical and rectangular samples. Our new post-processing scheme was tested on a water-filled container and showed 96.3% accuracy, assessed by comparing our results with tabulated data.
Exceptional points of all-dielectric nanoresonators
Authors: Valero Adrià Canós 
Published: November 2021

Abstract
In the recent years, all-dielectric nanophotonics has been showing promising potential for biotechnology, with important progress in the development of efficient all-optical, all-dielectric nanosensing devices overcoming the ohmic losses inherently present in their plasmonic counterparts. In the quest to achieve single molecule sensitivities, a judicious design of the optical response of the nanoantennas is required. Here, we approach this problem from the perspective of non-Hermitian physics and investigate the interaction of two finite nanorods supporting Mie resonances, with the aim of maximizing the frequency detuning induced by a perturbation of the structure. We develop a simple semi-analytical technique to efficiently investigate the coupled system, and we find that Coulomb interactions, together with mutual interference induced by breaking the dimer symmetry, can effectively bring the structure towards a non-Hermitian singularity, an exceptional point, that can potentially increase the sensitivity. The results of this work are expected to lead to novel developments in all-optical single molecule detection, and merge for the first time all-dielectric nanophotonics with exceptional point physics.
Optical Heating Controlled With a Thermoplasmonic Metasurface
Authors: Chernykh E A , Filippov A N , Alekseev A M , Makhiboroda M A , Kharintsev S S 
Published: November 2021

Abstract
We develop a photothermal technology to control optical heating of polymer and liquid crystal films through a refractory titanium nitride (TiN) metasurface. The metasurface represents an array of identical square-shaped TiN nanoantennas on a Si substrate. Upon CW laser illumination, a TiN nanoantenna experiences anomalous Joule heating at a plasmon resonance. A temperature rise provides a unique opportunity for locally probing phase transitions. In the case of heterogeneous PMMA thin films or polymeric blends, a controlled optical heating is needed to probe the glass transition temperature (Tg) of their constituents. Here, we model a controlled thermal response originating from the TiN nanoantenna under CW laser illumination by using FDTD/FEM methods.
Pump-probe spectroscopy in gold-garnet magnetoplasmonic metasurfaces
Authors: Dolgova T V , Kiryanov M A , Nurgalieva P K , Ostanin G S , Musorin A I , Uchida H , Inoue M , Fedyanin A A 
Published: November 2021

Abstract
Ultrafast modulation of optical response is realized in a multi-resonant magnetoplasmonic metasurface under resonant femtosecond pump. A saturation of resonant probe transient transmission is shown at dielectric quazi-waveguide mode.
Functional Photonic Elements Based on Liquid Crystal Metasurfaces
Authors: Gorkunov Maxim V. , Kasyanova Irina V. , Artemov Vladimir V. , Geivandov Artur R. , Simdyankin Ivan V. , Mamonova Alena V. , Ezhov Alexander A. , Palto Serguei P. 
Published: November 2021

Abstract
We study versatile soft-matter metasurfaces based on self-assembling of nematic liquid crystal on polymer alignment layers processed with a focused ion beam. Digital control of the beam path allows imprinting patterns that induce different complex distributions of the refractive index within several micrometer thick liquid crystal layers. We optimize them to implement various optical functionalities, such as broadband anomalous refraction, wide-aperture focusing, and beam splitting in tens of channels.
Structure and properties of the low-energy deposited TiO2 thin films: results of the molecular dynamics simulation
Authors: Grigoriev F.V. , Sulimov V.B. , Tikhonravov A.V. 
Published: November 2021

Abstract
The classical molecular dynamics simulation of the low-energy glancing angle deposition of titanium dioxide films is performed. The deposition angle varies from 60° to 80°. It is found that the film structure consists of parallel slanted columns which lead to the anisotropy of films properties. The difference between the main components of the refractive index tensor is about 0.14, which is close to the values obtained for high-energy titanium dioxide films and larger than 0.03 obtained earlier for silicon dioxide films.
Realizing Spin-Conserved and Spin-Encrypted Hologram using Multipolar-modulated Meta-platform
Authors: Khaliq Hafiz Saad , Kim Inki , Riaz Kashif , Naeem Taimoor , Zubair Muhammad , Rho Junsuk , Mehmood Muhammad Qasim 
Published: November 2021

Abstract
The chiro-optical effects complemented with polarization conservation and wavefront shaping finds potential applications in advanced imaging, sorting and detection of enantiomers and quantum optics. Here, a unique design strategy proposed to manifest enormous chiro-optical effects using achiral structures (instead of conventional chiral antennas). The basic building block of the meta-platform contains a pair of achiral structures. The underlying mechanism behind the giant chiro-optical effects is explained by numerically calculating the multipolar resonances of scattering power. The designed diatomic meta-platform achieves absolute control over spin and wavefront of incident light to demonstrate the polarization-conserved and -encrypted meta-holograms.