bluuebunny/crossref_metadata_2025 huggingface dataset:
Maintaining pronounced proton transportation of solid oxides prepared with a sintering additive
Authors: Mineev Alexey M. , Zvonareva Inna A. , Medvedev Dmitry A. , Shao Zongping
Published: June 2021

This work reports key findings allowing a dense proton-conducting ceramic to be produced with a CuO sintering additive. A selection of this additive in low amounts results in materials exhibiting full proton capability and high ionic conductivity.
Defect evolution of hierarchical SnO2 aggregates for boosting CO2 electrocatalytic reduction
Authors: Cao Xueying , Wulan Bari , Zhang Baohua , Tan Dongxing , Zhang Jintao
Published: June 2021

The defect evolution enables the regulation of oxygen vacancies and interfacial chemistry of hierarchical tin oxide aggregates for boosting CO2 electrocatalytic reduction.
Green quasi-solid-state planar asymmetric supercapacitors with high working voltage and extraordinary volumetric energy density
Authors: Peng Zhongyou , Huang Jun , He Qichang , Li Shulong , Tan Licheng , Chen Yiwang
Published: June 2021

The assembled 2.2 V planar Na0.55Mn2O4//VN/rGO ASC exhibits remarkable energy density and outstanding cycling stability, as well as integration capability.
An electrochemical biosensing platform for progesterone hormone detection using magnetic graphene oxide
Authors: Disha  , Kumari Poonam , Nayak Manoj K. , Kumar Parveen
Published: June 2021

A facile and label-free electrochemical approach based on magnetic graphene oxide nanomaterials with a large surface to volume ratio and less susceptible to aggregation proved promising in developing highly sensitive and selective sensing of progesterone.
Design of hybrid biocatalysts by controlled heteroaggregation of manganese oxide and sulfate latex particles to combat reactive oxygen species
Authors: Alsharif Nizar B. , Bere Katalin , Sáringer Szilárd , Samu Gergely F. , Takács Dóra , Hornok Viktória , Szilagyi Istvan
Published: June 2021

Antioxidant nanocomposites of advanced functional and colloidal features were developed by controlled heteroaggregation of manganese oxide and sulfate latex particles.
Poly(trimethylene carbonate) flexible intestinal anastomosis scaffolds to reduce the probability of intestinal fistula and obstruction
Authors: Ren Yuehan , Li Xujian , Wu Lei , Pan Luqi , Ji Zhixiao , Shi Changcan , Zhang Xiaodong
Published: June 2021

The tissue engineering scaffold of electrospun poly(trimethylene carbonate) (PTMC) has excellent biomimetic extracellular matrix properties, biocompatibility and biodegradability. This study reports the preparation of electrospun PTMC fibers loaded with triclosan (TCS) into an intestinal anastomosis scaffold, which can respond well to the complex biological environment during intestinal anastomosis repair and is beneficial to tissue healing.
In situ synthesis of fluorescent polydopamine polymer dots based on Fenton reaction for a multi-sensing platform
Authors: Li Quan , Zhang Taoyi , Chen Jing , Ji Wenxi , Wei Yun
Published: June 2021

In situ synthesis of fluorescent PDA–PDs based on the Fenton reaction for multi-sensing platforms and molecular logic gates.
An insight into the mechanism of antibacterial activity by magnesium oxide nanoparticles
Authors: Bhattacharya Proma , Dey Aishee , Neogi Sudarsan
Published: June 2021

Reactive oxygen species generation is the dominant mechanism behind the potent antibacterial activity of magnesium oxide nanoparticles.
When MoS2meets TiO2: facile synthesis strategies, hybrid nanostructures, synergistic properties, and photocatalytic applications
Authors: Wang Jinting , Fu Kun , Zhang Xiaoyuan , Yin Qunjiao , Wei Gang , Su Zhiqiang
Published: June 2021

TiO2/MoS2-based nanocomposites exhibit a wide range of applications in photocatalytic fields due to their synergistic effects.
Three-order fluorescence enhancement of perovskite nanocrystals using plasmonic Ag@SiO2 nanocomposites
Authors: Wang Nan , Wang Yue , Ding Nan , Wu Yanjie , Zi Lu , Liu Sen , Zhou Donglei , Zhu Jinyang , Bai Xue , Xu Wen , Song Hongwei
Published: June 2021

Using Ag@SiO2@CsPbCl1.5Br1.5 nanocomposite structure to achieve three orders of magnitude increase in the fluorescence intensity of CsPbCl1.5Br1.5.
Synthesis and electronic properties of nitrogen-doped π-extended polycyclic aromatic dicarboximides with multiple redox processes
Authors: Alonso-Navarro Matías J. , Harbuzaru Alexandra , Martínez-Fernández Marcos , Pérez Camero Paula , López Navarrete J. Teodomiro , Ramos M. Mar , Ponce Ortiz Rocío , Segura José L.
Published: June 2021

A series of novel nitrogen-doped polycyclic aromatic mono and dicarboximides, able to stabilize multiple redox processes, has been synthesized by an innovative procedure that avoids metal-based cross-coupling reactions.
SIn2Te/TeIn2Se: a type-II heterojunction as a water-splitting photocatalyst with high solar energy harvesting
Authors: Shan Peishun , Zhang Chunxiao , Zhou Mengshi , He Chaoyu , Ouyang Tao , Li Jin , Tang Chao , Zhong Jianxin
Published: June 2021

A type-II vdW heterojunction is used as a water-splitting photocatalyst with high solar energy harvesting and robust performance under an external field.
Recent advances and prospects in reduced graphene oxide-based photodetectors
Authors: Khan Mustaque A. , Kumar Ashok , Zhang Jun , Kumar Mahesh
Published: June 2021

This review analytically summarizes the advances in reduced graphene oxide (rGO)-based photodetectors. It provides an overview of photodetection mechanisms and different kinds of rGO-based photodetectors.
Unraveling the crucial role of spacer ligands in tuning the contact properties of metal–2D perovskite interfaces
Authors: Xu Zhuo , Chen Ming , Liu Shengzhong Frank
Published: June 2021

The spacer ligand acts as a buffer layer and plays a crucial role in modulating the contact properties of metal–2D perovskite interfaces.
Thenil and furil-imidazole-based efficient ionic green emitters with high color purity for non-doped light-emitting electrochemical cells
Authors: Puthanveedu Archana , Shanmugasundaram Kanagaraj , Yoon Sunghyun , Choe Youngson
Published: June 2021

Future artificial lighting devices ought to be efficient, economical, environmentally benign and free of rare metals like iridium.
Thin-film transistors for emerging neuromorphic electronics: fundamentals, materials, and pattern recognition
Authors: Wang Conglin , Li Yuanzhe , Wang Yucong , Xu Xiangdong , Fu Mingyang , Liu Yuyu , Lin Zongqiong , Ling Haifeng , Gkoupidenis Paschalis , Yi Mingdong , Xie Linghai , Yan Feng , Huang Wei
Published: June 2021

This review paper provides an overview of the recent successful simulation of pattern recognition with TFT-based artificial synapses from device- to system-level.
Synthesis, crystal chemistry, and optical properties of two methylammonium silver halides: CH3NH3AgBr2 and CH3NH3Ag2I3
Authors: Gray Matthew B. , Holzapfel Noah P. , Liu Tianyu , da Cruz Pinha Barbosa Victor , Harvey Nicholas P. , Woodward Patrick M.
Published: June 2021

The ternary silver halides CH3NH3AgBr2 and CH3NH3Ag2I3 are low-dimensional, wide band gap semiconductors made up of edge-sharing silver halide tetrahedra.
The fabrication of a photo-carrier transfer channel for a near infrared up-conversion coupled photocathode via a sandwich-like nanostructure
Authors: Chen Xi , Bu Yuyu , Li Huan , Wang Xiao , Ao Jin-Ping
Published: June 2021

A novel NaYF4:Er3+–Yb3+/AZO/Cu2O sandwich-like photocathode is fabricated in this work to improve the photocarrier transfer process and reduce interface defects.
Wavelength-dependent multicolor photochromism and fluorescence switching based on an AIE-active skeleton by regulating the conjugation of the photoactive unit
Authors: Zhou Shasha , Guo Sidan , Liu Weidong , Ding Riqing , Sun Huili , Chen Jianrong , Qian Zhaosheng , Feng Hui
Published: June 2021

We proposed a general design strategy to achieve multicolor photochromic systems with dual-signaling color and fluorescence modes using a group of colorful photochromic compounds based on an AIE-active molecular skeleton.
A cage boron allotrope with high superconductivity at ambient pressure
Authors: Liang Yiwei , Xu Meiling , Qu Ziyang , Lin Shuyi , Hao Jian , Li Yinwei
Published: June 2021

A unique B16 cage structure exhibits a Tc of 43 K, the highest value among all elemental superconductors at ambient pressure.
Plasmon-assisted spin transition in gold nanostar@spin crossover heterostructures
Authors: Sanchis-Gual Roger , Torres-Cavanillas Ramón , Coronado-Puchau Marc , Giménez-Marqués Mónica , Coronado Eugenio
Published: June 2021

The spin transition of a Au nanostar and a SCO heterostructure has been induced by irradiating with low-intensity NIR light.
Efficient carrier transport for 368 nm ultraviolet LEDs with a p-AlInGaN/AlGaN short-period superlattice electron blocking layer
Authors: He Longfei , Zhang Kang , Wu Hualong , He Chenguang , Zhao Wei , Wang Qiao , Li Shuti , Chen Zhitao
Published: June 2021

Efficient carrier transport for 368 nm ultraviolet LEDs with a p-AlInGaN/AlGaN short-period superlattice electron blocking layer.
LMBD1 protein participates in cell mitosis by regulating microtubule assembly
Authors: Sun Chiao-Yin , Chang Shin C. , Wang Hsiu-Po , Lee Yu-Jung , Pan Kuei-Hsiang , Lin Chieh-Liang , Hsieh Yu-Ting , Ta Yng-Cun , Chen Yau-Hung , Chang Ming-Fu
Published: June 2021

LMBD1 was previously demonstrated to regulate the endocytosis of insulin receptor on the cell surface and to mediate the export of cobalamin from the lysosomes to the cytosol, but little is known about its function in mitosis. In this study, interactome analysis data indicate that LMBD1 is involved in cytoskeleton regulation. Both immunoprecipitation and GST pulldown assays demonstrated the association of LMBD1 with tubulin. Immunofluorescence staining also showed the colocalization of LMBD1 with microtubule in both interphase and mitotic cells. LMBD1 specifically accelerates microtubule assembly dynamics in vitro and antagonizes the microtubule-disruptive effect of vinblastine. In addition, LMBRD1-knockdown impairs mitotic spindle formation, inhibits tubulin polymerization, and diminishes the mitosis-associated tubulin acetylation. The reduced acetylation can be reversed by ectopic expression of LMBD1 protein. These results suggest that LMBD1 protein stabilizes microtubule intermediates. Furthermore, embryonic fibroblasts derived from Lmbrd1 heterozygous knockout mice showed abnormality in microtubule formation, mitosis, and cell growth. Taken together, LMBD1 plays a pivotal role in regulating microtubule assembly that is essential for the process of cell mitosis.
Interactions between cardiology and oncology drugs in precision cardio-oncology
Authors: Kamaraju Sailaja , Mohan Meera , Zaharova Svetlana , Wallace Brianna , McGraw Joseph , Lokken James , Tierney John , Weil Elizabeth , Fatunde Olubadewa , Brown Sherry-Ann
Published: June 2021

Recent advances in treatment have transformed the management of cancer. Despite these advances, cardiovascular disease remains a leading cause of death in cancer survivors. Cardio-oncology has recently evolved as a subspecialty to prevent, diagnose, and manage cardiovascular side effects of antineoplastic therapy. An emphasis on optimal management of comorbidities and close attention to drug interactions are important in cardio-oncologic care. With interdisciplinary collaboration among oncologists, cardiologists, and pharmacists, there is potential to prevent and reduce drug-related toxicities of treatments. The cytochrome P450 (CYP450) family of enzymes and the P-glycoprotein (P-g) transporter play a crucial role in drug metabolism and drug resistance. Here we discuss the role of CYP450 and P-g in drug interactions in the field of cardio-oncology, provide an overview of the cardiotoxicity of a spectrum of cancer agents, highlight the role of precision medicine, and encourage a multidisciplinary treatment approach for patients with cancer.
A priority tree based coordination method for intelligent and connected vehicles at unsignalized intersections
Authors: Dongxin Lv , Qiqige Wuniri , Wenbo Chu , Huilong Yu , Xiaoping Du
Published: June 2021

Intelligent and connected vehicles are believed to be the future solution to traffic management, especially in highly challenging areas such as intersections. In this paper, a priority tree based coordination method is proposed for intelligent and connected vehicles at unsignalized intersections. First, a dynamic scheduling method is used to generate the crossing order of the vehicles, considering the conflicting relationship, waiting time, and arrival time of the vehicles. Then a conflict resolution method is presented to handle the spatial and temporal conflicts among the vehicles inside the intersection. And the simulation results show that the method can generate collision‐free traffic flows as well as improving the traffic performance.
A bidirectional hybrid switched inductor converter with wide voltage conversion range
Authors: Hulea Dan , Cornea Octavian , Muntean Nicolae , Fahimi Babak
Published: June 2021

A bidirectional hybrid switched inductor converter (BHSI) is proposed in this paper. The converter uses an inductor switching cell in order to achieve a wide voltage conversion range, smaller passive components, and lower stress on the active devices. Apart from these advantages, the introduction of the additional inductor in the switching cell does not increase the complexity of the control structure, as is usually the case with other topologies with multiple components. The BHSI is compared, in terms of inductor/capacitor energies and total device stress, to other state‐of‐the‐art topologies and its advantages are highlighted. Two 3 kW prototypes were built, using Si‐MOSFETs and GaN‐FETs, in order to analyse their performances from the efficiency point of view, and to validate the theoretical findings. The stability analysis of the converter is performed and tested in a supercapacitor storage application, resulting in a good operation in both charge and discharge modes.
Manometric Tubular Springs Oscillatory Processes Modeling with Consideration of its Viscoelastic Properties
Authors: Safarov Ismoil , Теshaev Мuhsin , Axmedov Sharifboy , Rayimov Doniyor , Homidov Farhod
Published: June 2021

This article is dedicated to the operation and management of systems of machine-building and aviation enterprises, systems of production, transport, storage of oil and gas, issues of control of technological processes are of great importance. Control of technological processes is carried out by monitoring the pressure and other parameters. These measuring instruments must have high reliability and the necessary accuracy. In this connection, there is a sharp increase in interest in determining the dynamic parameters of the elements of measuring devices. The main elements of such devices are monomeric tubular springs (Bourdon tubes). The paper considers the natural and forced steady-state oscillations of a thin curved rod interacting with a liquid. Based on the principle of possible displacements, a resolving system of partial differential equations and the corresponding boundary conditions are obtained. The problem is solved numerically by the Godunov orthogonal run method, and the Muller method and the Eigen frequencies found are compared with the experimental results. As a result, for a given axial perturbation, it was possible to select such an effect, in the orthogonal direction, that the amplitude of the longitudinal vibrations of the rod at the first resonance decreased by 20 times. The described vibration damping effect is due to the interrelation of transverse and longitudinal vibrations and is fundamentally impossible in the case of a straight rod.
Simulation of non-isothermal free turbulent gas jets in the process of energy exchange
Authors: Hamdamov Muzaffar , Mirzoyev Akmal , Buriev Eshmurod , Tashpulatov Nosirbek
Published: June 2021

This article proposes a numerical method for solving the propagation and combustion of a jet of a gas mixture in an axisymmetric satellite air stream. To model the process, the dimensionless equations of the turbulent boundary layer of reacting gases in the Mises coordinates are used. A two-layer four-point nonlinear boundary separation scheme was used to solve the problem in the Mises coordinates, and a second-order along the longitudinal coordinate was given. The iterative process was used because of the nonlinearity of the storage and displacement equations of substations. Individual results of the numerical experiment are presented.
Possibilities of using lianas for greening automobile roads
Authors: Radkevich Marina , Pulatova Tojinur , Shipilova Kamila , Pochuzhevsky Oleg , Gapirov Abdusamin , Turakulov Murat
Published: June 2021

The environmental problems of the road transport system in Tashkent are analyzed in the article. Particulate air pollution is one of the most serious problems. To reduce dust pollution in the air, it is proposed to create protective screens along highways from lianas. It was proposed to form screens from fragrant honeysuckle (Lonícera caprifólium) and ivy (Hedera helix), which are evergreen in the conditions of Tashkent. The study of the dust-absorbing capacity of the leaves of these plants showed that ivy leaves are the most dust-absorbing, capable of holding up to 1.64 mg of dust per 1 cm2 of the surface.
Improving the optimal composition of heat-insulating structural aerated concrete based on industrial waste
Authors: Shaumarov Said , Kandakhorov Sanjar , Abduraimov Umarali
Published: June 2021

This article presents the results of experimental research, which characterizes the parameters and properties of the porous structure of aerated concrete based on industrial waste. Structurally optimal parameters representing the physical-mechanical, thermal-technical properties of aerated concrete-based exterior wall structures have been identified. The test results were carried out in research laboratories using aerated block constructions with an optimal composition of high porosity and improved technological solutions of autoclaved aerated concrete.
Vibrations of a Girder on Rigid Supports of Finite Mass Interacting With Soil under Seismic Loads
Authors: Berdibaev Mars , Mardonov Batir , Khurramov Asror
Published: June 2021

Transverse vibrations of a single-span girder bridge are considered in the article; the pile part of the bridge interacts with the surrounding soil under seismic action. We assume that the strain of the structure does not go beyond the elastic limit, and the vibrations are linear. The bridge supports are assumed to be immersed in soil and interact with a rigid body under the impact of unsteady dynamic influences. We consider the case when the right and left supports have equal masses and interact with the surrounding soil. Here the symmetry condition is applied, so it is sufficient to consider the equation for the right half of the girder. The problems are solved by the analytical Fourier method under given boundary conditions. The results obtained are analyzed and presented in the form of the distribution of displacements and stresses over the time and length of the bridge structures.
The use of ice to cool the concrete mix in the construction of massive structures
Authors: Aniskin Nikolay , Chuc Nguyen Trong , Kiet Bui Anh
Published: June 2021

This article proposes a formula to determine the required amount of ice to partially replace the water in the concrete mix to control the initial temperature of the concrete mix and reduce possible cracking. The formula was created based on the principle of energy balance in the heat transfer process. At the same time, the obtained results were compared with the other methods. Besides, an example of the calculation for a concrete block during the construction was performed. The maximum temperature and temperature difference in mass concrete obtained depend significantly on the initial temperature of the concrete mixture. The research results and the proposed techniques can be used in the practical design of mass concrete structures.
Features of the joint work of structures and pile foundations on loess foundations
Authors: Buzrukov Zakiryo , Yakubjanov Ilkhom , Umataliev Mukhtorzhon
Published: June 2021

This paper presents the results of using frame structures in industrial construction with pile foundations under dynamic influences. In the course of the study, a set of formulas were derived to determine the amplitude-frequency characteristics of the system "flat frame-grillage-group of piles" at different levels of action of loads excited from the seismic platform, and natural frequencies were calculated, bending moments, shear forces at the points of fixation of the system elements were determined. The results of calculations and analysis make it possible to obtain the dynamic characteristics of a flat frame on pile foundations, which are necessary for subsequent calculations.
Modification of dispersion systems and its motion in cylindrical pipes
Authors: Rakhimov Kudrat , Babaev Askar , Chorshanbiev Umar , Obidjonov Axror
Published: June 2021

This paper analyzes the dependence of properties of turbid flow on the dispersion composition and concentration of solid particles. The article presents the features of the transfer of river suspended solids and water in the pressure stations, that is, the effect on the distribution of kinematic and dynamic parameters of the flow of suspended particles of hydraulic transport.
Formation of an air jet by a fan installation with pneumatic disk sprayer
Authors: Afanasiy Lee , Utepov Burkhan , Allaniyazov Satniyaz
Published: June 2021

The article presents the theoretical background, in particular, the developed mathematical models describing the technological processes of air-jet formation and the influence of the wind wheel on changes in the axial velocities of the air jet, as well as the range of the air jet by a fan installation with a pneumatic disk sprayer. Theoretical studies show that the smooth variation of the axial velocity air flow fan installations and prevent the transfer of the isothermal jet of the circular cross-section of the air flow into the annular, possibly with applications on disk atomizer additional fairing and, to reduce the impact of Pavlovskogo spray on the variation of the axial velocity of the air flow and range of the fan system must be applied wind wheel with the highest energy efficiency of the air flow.
The spraying process simulation of the low-volume sprayer working body
Authors: Afanasiy Li , Utepov Burkhan , Allaniyazov Satniyaz
Published: June 2021

The article presents the developed mathematical models that describe the process of spraying the working body of a low-volume sprayer. Theoretical studies show that with an increase in the supply of working fluid to the atomizing disc, the rotational speed of the pneumatic disc atomizer decreases, and in order to ensure the effect of the air flow on the droplet formation process, the radius of the disc should be larger than the radius of the base of the cone-shaped fairing, but less than its maximum critical value and for obtaining a monodisperse spray with the main droplet diameter d = 80 … 120 μm, at an axial air flow velocity of the fan installation U = 40 … 60 m/s, the parameters of the disk the sprayer and the propeller are linked together when the following values: disk radius r = 65 … 85 mm, the number of radial channels on the disk nр = 2 … 6 pcs, the width of the radial channel bр = 3 … 4 mm, and to obtain a high-quality air-droplet flow, the initial velocity of the main drops discharged from the periphery of the spraying disc must be less than the speed of the air flow and, at the same time, the rotational speed of the pneumatic disc sprayer is recommended to be used in the range of ω = 60… 200 s-1.
Issues of assessment of the surface area effect on irrigated water consumption
Authors: Atajanov Adiljan , Khudaev Ibrahim , Usmanov Nail , Babajanov Laziz
Published: June 2021

This article focuses on improving water-saving technologies for efficient use of water resources, the development and recommendation of modern irrigation methods, and assessing the impact of surface area on irrigation water consumption.
The influence of production conditions on the electrophysical parameters of piezoceramics for different applications
Authors: Akhmedov Abduraxman , Sauchuk Galina , Yurkevich Natallia , Khudoyberganov Sardorbek , Bazarov Mahammatyakub , Karshiev Karimberdi
Published: June 2021

The conditions for the preparation of ceramic piezomaterials with low temperatures of synthesis and sintering have been studied. It is obtained that the materials based on the double system0.2Pb(Nb2/3Zn1/3)O3-0.8Pb(Zr0.5Ti0.5)O3, alloyed with gallium and manganese ions and the triple system 0.41Pb(Ni1/3Nb2/3)O3-0.23PbZrO3-0.36PbTiO3, alloyed with zinc and copper ions can be used in multilayer devices. It is shown that the lead-free ceramic material of the composition. (Na0.5Bi0.5)0.91Сd0.09TiO3can be used in sensors and actuators.
Effective and rational use of irrigation water in the conditions of the republic of Karakalpakstan
Authors: Kurbanbaev S , Karimova O , Turlibaev Zakir , Baymuratov Rashid
Published: June 2021

The lack of water that has been repeated in recent years dictates the requirements of a strict regime of water conservation and economical use of water. Understanding the need for strict water conservation and the fight against unproductive water losses must be started with the producers of agricultural products, i.e., from farms, as rational water use and water conservation at the field level could save a significant amount of irrigation water. The article reflects the current state of water use in irrigated agriculture in the Republic of Karakalpakstan. The main, inter-farm, and intra-farm canals have been studied in detail, and the mode and efficiency of their work have been assessed. The obtained results of the conducted field research works on irrigation technologies are presented. Suggestions on the choice of water-saving irrigation technologies are given, as well as recommendations on the effective use of irrigation water in the non-growing season.
Construction of closed horizontal drainage on irrigated lands and determination of its parameters
Authors: Vafoev Safo , Dauletov Nuzamadin , Turdibekov Ilkhomjon , Vafoev Rustam , Vafoeva Ozoda
Published: June 2021

The article describes the construction technology of closed horizontal drainage in irrigated areas, presents the results of theoretical studies to determine the depth of drainage, the width of the drainage trench, the diameter of the drainage pipe, the thickness of the filter material, the distance between the drains and the drainage module. According to the results of theoretical studies, the average drainage depth is 1.5 m, the width of the drainage trench is 0.3 m, the diameter of the drainage pipe is 0.1 m, the thickness of the filtration material is 0.1 m. The distance between the drains is 150 m with the drainage module 0.1 l/s, the distance between drains is 180 m with a drain module of 0.12 l/s, and the distance between drains is 210 m with a drain module of 0.14 l/s.
Investigation of the frequency characteristics of composite iron powders with insulating oxide coatings
Authors: Berdiev Usan , Vecher Alexander , Khasanov Fozil
Published: June 2021

This article discusses methods for studying the frequency characteristics of composite iron powders with insulating oxide coatings. The main dependences of hysteresis losses on induction for a full cycle at a frequency of magnetization reversal for various cross-sections of iron powders, sharply differing in the shape of the hysteresis curve and the values of the main magnetic characteristics, are studied, and also frequency dependences in the range of 50 Hz - 1 MHz of the figure of merit and inductance for samples based on composites are considered from powder Hoganes ASC100.29 after annealing in air, in water vapor and hydrogen at a temperature of 400 ° С for two hours. Based on the analysis of the dependencies, it can be explained by the fact that a material with a thin layer has a lower electrical resistivity, which means that the total electromagnetic losses will also be greater due to an increase in the contribution of losses to eddy currents. At the same time, the magnetic permeability at a frequency of 1 kHz differs by 30 units, and with an increase in the frequency to 1 MHz, it decreases by 10-15% for both materials. This makes it possible to use iron-based soft magnetic materials for electrical engineering.
Location measurement of an object using radio networks for Industry 4.0 applications
Authors: Fedotov Alexander , Badenko Vladimir , Kuptsov Vladimir , Ivanov Sergei , Struchkov Igor
Published: June 2021

Indoor positioning methods using radio networks are investigated. Time Difference of Arrival (TDOA) method is studied deeply, and the main problems are revealed. Application of ultra-wide band (UWB) radio technology to TDOA method is discussed, and limitations to UWB receiver and transmitter are revealed. These results are of great importance for the organization of unmanned moving devices management in the paradigm of fully autonomous Fabric of the Future in Industry 4.0.
Préceptes et engagements ayant trait aux recherches interdisciplinaires
Authors: Verlaet Lise , Mary Julien
Published: June 2021

Dans le cadre du programme de recherche Numerev, dont la finalité pratique vise à offrir aux communautés de chercheurs un portail de ressources numériques en libre accès ainsi qu’un outil de gestion des connaissances, nous avons rapidement été confrontés à des problématiques liées à des incompréhensions disciplinaires, tant du point de vue du vocable employé que des pratiques info-communicationnelles utilisées. Ce faisant, il nous est apparu opportun de mobiliser les chercheurs œuvrant dans des projets interdisciplinaires afin de mettre en commun, comparer et débattre des projets, méthodologies et expérimentations déployées dans cette visée.
Fallbericht: Chronischer unterer Rückenschmerz durch Störherdgeschehen an einem Weisheitszahn
Authors: Stör Wolfram
Published: June 2021

Dieser Fallbericht zeigt, wie durch einfache Testung mit Procain-Injektion ein entfernt vom eigentlichen Krankheitsgeschehen liegender Störherd entdeckt werden kann und wie die anschließende chirurgische Sanierung des Herdes zu vollständiger Heilung der Anlass gebenden Krankheit führen kann.
The Role of the Medial Olivocochlear Reflex in Acceptable Noise Level in Adults
Authors: Jamos Abdullah M. , Hosier Blair , Davis Shelby , Franklin Thomas C.
Published: June 2021

Abstract Background The acceptable noise level (ANL) is a measurement used to quantify how much noise a person is willing to accept while listening to speech. ANL has been used to predict success with hearing aid use. However, physiological correlates of the
ANL are poorly understood. One potential physiological correlate is the medial olivocochlear reflex (MOCR), which decreases the output of the cochlea and is thereby expected to increase noise tolerance. Purpose This study investigates the relationship between contralateral
activation of the MOCR and tolerance of background noise. Research Design This study recruited 22 young adult participants with normal hearing. ANL was measured using the Arizona Travelogue recording under headphones presented at the most comfortable level (MCL) with and without
multitalker babble noise. The MOCR strength was evaluated in all participants by measuring the cochlear microphonic (CM) with and without 40 dB sound pressure level contralateral broadband noise (CBBN). Data Analysis The CM observed in response to a 500-Hz tone was measured
with and without CBBN, and changes in response to fast Fourier transform amplitude at 500 Hz were used as an indicator of the MOCR effect. The ANL was calculated by subtracting the maximum acceptable background noise level from the MCL. Participants were divided into two groups based
on their ANL: low-ANL (ANL < 7 dB) and moderate-ANL (ANL ≥ 7 dB). An independent samples t-test was used to compare CM enhancement between low-ANL and moderate-ANL groups. Additionally, Pearson's correlation was used to investigate the relationship
between the ANL and the MOCR effect on the CM. Results The results indicated that presentation of CBBN increased the CM amplitude, consistent with eliciting the MOCR. Participants in the low-ANL group had significantly larger CM enhancement than moderate-ANL participants. The
results further revealed a significant correlation between the ANL and the MOCR effect on the CM. Conclusion This study suggests that a stronger MOCR, as assessed using CM enhancement, is associated with greater noise tolerance. This research provides a possible objective measure
to predict background tolerance in patients and adds to our understanding about the MOCR function in humans.
Accuracy of an Automated Hearing Aid Fitting Using Real Ear Measures Embedded in a Manufacturer Fitting Software
Authors: Brockmeyer Alison , Voss Adam , Wick Cameron C. , Durakovic Nedim , Valente Michael
Published: June 2021

Abstract Background Hearing aid fitting guidelines recommend real ear measures (REM) to verify hearing aid performance. Unfortunately, approximately 70 to 80% of clinicians do not use REM, but instead download manufacturer first-fit. Studies report differences
in performance between first-fit and programmed-fit with greatest differences in the higher frequencies. Recently, hearing aid and real ear analyzer (REA) manufacturers allow REA communication with hearing aid software feature to automatically program hearing aids to target. Little research
is available reporting the accuracy of this feature. Purpose The aim of the study is to examine whether differences exist at 50, 65, and 80 dB SPL between two ReSound first-fit formulae (Audiogram+ and NAL-NL2) using ReSound AutoREM and Aurical NAL-NL2 Research
Design The study design is of repeated measure type. Study Sample The study sample includes 48 ears. Data Collection and Analysis For the two fitting formulae, AutoREM real ear insertion gain (REIG) was measured at 50, 65, and 80 dB SPL and compared
with measures from Aurical NAL-NL2. Results Mean AutoREM REIG for ReSound NAL-NL2 was 3 to 8 dB below Aurical NAL-NL2 for 50 dB SPL, within 1 to 3 dB for 65 dB SPL and 1 to 5 dB above for 80 dB SPL. Mean AutoREM REIG for
Audiogram + was 1 to 12 dB below Aurical NAL-NL2 for 50 dB SPL, within 2 to 5 dB for 65 dB SPL and 1 to 7 dB above NAL-NL2 for 80 dB SPL. Conclusion Relative to the Aurical NAL-NL2, AutoREM REIG50
for Audiogram + and ReSound NAL-NL2 was lower. Relative to the Aurical NAL-NL2, AutoREM REIG65 for Audiogram + was higher at 1,000 Hz and lower at 4,000 to 6,000 Hz and for ReSound NAL-NL2 it was lower at 500 Hz and 4,000 Hz
and higher at 3,000 Hz. Relative to the Aurical NAL-NL2, AutoREM REIG80 for Audiogram + was higher at 500 to 3,000 Hz and 6,000 Hz and ReSound NAL-NL2 was higher at 500 to 6,000 Hz. Because of wide intersubject variability clinicians should
continue to use REM as a “check and balance” when using AutoREM.
Safety and Efficacy of Implantation of the Bonebridge Active Transcutaneous Bone-Conduction Device Using Implant Lifts
Authors: Brkic Faris F. , Riss Dominik , Arnoldner Christoph , Liepins Rudolfs , Gstöttner Wolfgang , Baumgartner Wolf-Dieter , Vyskocil Erich
Published: June 2021

Abstract Background Implant lifts were recently introduced to facilitate implantation of the Bonebridge and to reduce the risk of uncovering the sigmoid sinus and/or dura. Purpose The current study analyzed medical, technical, and audiological
outcomes of implantation with the Bonebridge implant using lifts. Research Design This was a retrospective study on all consecutive patients implanted with a bone-conduction hearing implant at a tertiary medical referral center between March 2012 and October 2018. Outcome measures
were complications, explantations, and revisions and the mean time of implant use. Audiological results were assessed as well. Outcomes were evaluated for devices implanted with BCI Lifts and compared with those implanted without lifts. Results In the study period, 13 out of
a total of 54 implantations were conducted using one or two 1- to 4-mm BCI Lifts. During the follow-up period, two complications occurred and both in patients implanted without lifts (2/41; 4.9%). All patients in the lifts group were using the implant at the end of observation period. No statistically
significant difference was observed in functional hearing gain or word-recognition improvement at 65 dB between two groups. Conclusions The use of BCI Lifts in Bonebridge implantations was not associated with adverse events during the observation period. The clinical
follow-up revealed no complications in implantations requiring lifts. Furthermore, the functional hearing gain and the word-recognition improvement did not differ from those of devices implanted without lifts. Data indicate safety and efficacy for Bonebridge implantations using lifts.
Hearing Health Care Utilization Following Automated Hearing Screening
Authors: Folmer Robert L. , Saunders Gabrielle H. , Vachhani Jay J. , Margolis Robert H. , Saly George , Yueh Bevan , McArdle Rachel A. , Feth Lawrence L. , Roup Christina M. , Feeney M. Patrick
Published: June 2021

Abstract Background The study examined follow-up rates for pursuing hearing health care (HHC) 6 to 8 months after participants self-administered one of three hearing screening methods: an automated method for testing of auditory sensitivity (AMTAS), a four-frequency
pure-tone screener (FFS), or a digits-in-noise test (DIN), with and without the presentation of a 2-minute educational video about hearing. Purpose The study aims to determine if the type of self-administered hearing screening method (with or without an educational video) affects
HHC follow-up rates. Research Design The study is a randomized controlled trial of three automated hearing screening methods, plus control group, with and without an educational video. The control group completed questionnaires and provided follow-up data but did not undergo
a hearing screening test. Study Sample The study sample includes 1,665 participants (mean age 50.8 years; 935 males) at two VA Medical Centers and at university and community centers in Portland, OR; Bay Pines, FL; Minneapolis, MN; Mauston, WI; and Columbus, OH. Data
Collection and Analysis HHC follow-up data at 6 to 8 months were obtained by contacting participants by phone or mail. Screening methods and participant characteristics were compared in relation to the probability of participants pursuing HHC during the follow-up period. Results The
2-minute educational video did not have a significant effect on HHC follow-up rates. When all participants who provided follow-up data are considered (n = 1012), the FFS was the only test that resulted in a significantly greater percentage of HHC follow-up (24.6%)
compared with the control group (16.8%); p = 0.03. However, for participants who failed a hearing screening (n = 467), follow-up results for all screening methods were significantly greater than for controls. The FFS resulted in a greater probability
for HHC follow-up overall than the other two screening methods. Moreover, veterans had higher follow-up rates for all screening methods than non-veterans. Conclusion The FFS resulted in a greater HHC follow-up rate compared with the other screening methods. This self-administered
test may be more motivational for HHC follow-up because participants who fail the screening are aware of sounds they could not hear which does not occur with adaptive assessments like AMTAS or the DIN test. It is likely that access to and reduced personal cost of audiological services for
veterans contributed to higher HHC follow-up rates in this group compared with non-veteran participants.
SLC2A1 and Its Related Epileptic Phenotypes
Authors: Patanè Francesca , Pasquetti Elisa , Sullo Federica , Tosto Monica , Romano Catia , Salafia Stefania , Falsaperla Raffaele
Published: June 2021

Glucose transporter type 1 deficiency syndrome (GLUT1DS) is caused by heterozygous, mostly de novo, mutations in SLC2A1 gene encoding the glucose transporter GLUT1, the most relevant energy transporter in the blood–brain barrier. GLUT1DS includes a broad spectrum of neurologic disturbances, from severe encephalopathy with developmental delay, to epilepsy, movement disorders, acquired microcephaly and atypical mild forms. For diagnosis, lumbar puncture and genetic analysis are necessary and complementary; an immediate response to ketogenic diet supports the diagnosis in case of high suspicion of disease and negative exams. The ketogenic diet is the first-line treatment and should be established at the initial stages of disease.
Motivational Interviewing for Hearing Aid Use: A Systematic Meta-Analysis on Its Potential for Adult Patients with Hearing Loss
Authors: Liu Alice Q. , Wu Bella , Nunez Desmond A.
Published: June 2021

Abstract Purpose The aim of the study is to conduct a meta-analysis examining the impact of motivational interviewing (MI) on hearing aid (HA) use compared with standard care. Research Design The research design is a systematic review and meta-analysis.
Cochrane ENT, Central, Medline, Web of Science, ICTRP, and ClinicalTrials.gov electronic databases were searched. Inclusion criteria consisted of randomized controlled trials (RCTs) published between 1988 and 2018 that compared MI to standard care. Study Sample The study sample
consists of four RCTs, investigating a total of 176 patients. Data Collection and Analysis RevMan 5.3 and a random effect model were used for analysis. Results The standardized mean difference in data-logged hours of HA use was not statistically significant
(0.34 [95% confidence interval or CI: −0.10, 0.78; p = 0.13]). The mean difference for user-reported outcomes on the International Outcome Inventory—Hearing Aids of 0.41 [CI: −1.00, 1.82; p = 0.57] was also not significant. Conclusion There
is no current evidence that MI significantly improves HA use or user-reported outcomes. However, there were limited studies included in this review and further research is indicated.
“God save us always from the innocent and the good”: American versus European Exceptionalism in Graham Greene’s The Quiet American
Authors: Griffin Thomas Ross
Published: June 2021

This essay argues that by challenging the rectitude of American intervention in Vietnam, The Quiet American is the means by which Greene criticises the American exceptionalism of the post-World War 2 era. It shows how the nation’s exceptionalism is built upon a fantasy of American idealism that masks the true intentions hidden behind America’s crusade against Communism. It proposes also that Greene uses his novel to highlight the existence of a European exceptionalism as potent as its transatlantic equivalent, and one much overlooked in contemporary discourse on Vietnam. The crux of Greene’s critique is located in Alden Pyle. Propped up by what Said describes as “structures of attitude and reference”, the article argues that Pyle’s rhetoric and actions demonstrate the blind commitment to American exceptionalism that Greene challenges in the text. The essay uses Donald Pease’s concept of the State of Exception to draw a parallel between the British journalist Thomas Fowler and Pyle to argue that in orchestrating the assassination of the latter, Fowler adopts the moral purpose that had prompted much of the American aid worker’s actions throughout the novel. It argues that this European version of exceptionalism comes from what Greene believed to be the suitability of European powers to oversee change in Vietnam, one that America was ill-equipped to handle. The essay ends by suggesting that The Quiet American was not so much what Diana Trilling described as “Mr Greene’s affront to America”, but an attempt to defend Europe amidst the onset of American dominance.
Extending and assessing composite electronic structure methods to the solid state
Authors: Doná L. , Brandenburg J. G. , Civalleri B.
Published: June 2021

A hierarchy of simplified Hartree-Fock (HF), density functional theory (DFT) methods, and their combinations has been recently proposed for the fast electronic structure computation of large systems. The covered methods are a minimal basis set Hartree–Fock (HF-3c), a small basis set global hybrid functional (PBEh-3c), and its screened exchange variant (HSE-3c), all augmented with semiclassical correction potentials. Here, we extend their applicability to inorganic covalent and ionic solids as well as layered materials. The new methods have been dubbed HFsol-3c, PBEsol0-3c, and HSEsol-3c, respectively, to indicate their parent functional as well as the correction potentials. They have been implemented in the CRYSTAL code to enable routine application for molecular as well as solid materials. We validate the new methods on diverse sets of solid state benchmarks that cover more than 90 solids ranging from covalent, ionic, semi-ionic, layered, and molecular crystals. While we focus on structural and energetic properties, we also test bandgaps, vibrational frequencies, elastic constants, and dielectric and piezoelectric tensors. HSEsol-3c appears to be most promising with mean absolute error for cohesive energies and unit cell volumes of molecular crystals of 1.5 kcal/mol and 2.8%, respectively. Lattice parameters of inorganic solids deviate by 3% from the references, and vibrational frequencies of α-quartz have standard deviations of 10 cm−1. Overall, this shows an accuracy competitive to converged basis set dispersion corrected DFT with a substantial increase in computational efficiency.
Long chain fatty acid affects excited state branching in
bilirubin-human serum protein Complex
Authors: Liu Yang-yi , Pan Hai-feng , Xu Jian-hua , Chen Jin-quan
Published: June 2021

After binding to human serum albumin, bilirubin could undergo photoisomerization and photo-induced cyclization process. The latter process would result the formation of a product, named as lumirubin. These photo induced behaviors are the fundamental of clinical therapy for neonatal jaundice. Previous studies have reported that the addition of long chain fatty acids is beneficial to the generation of lumirubin, yet no kinetic study has revealed the mechanism behind. In this study, how palmitic acid affects the photochemical reaction process of bilirubin in Human serum albumin (HSA) is studied by using femtosecond transient absorption and fluorescence up-conversion techniques. With the addition of palmitic acid, the excited population of bilirubin prefers to return to its hot ground state (S0) through a 4 ps decay channel rather than the intrinsic ultrafast decay pathways (<1 ps). This effect prompts the Z-Z to E-Z isomerization at the S0 state and then further increases the production yield of lumirubin. This is the first time to characterize the promoting effect of long chain fatty acid in the process of phototherapy with femtosecond time resolution spectroscopy and the results can provide useful information to benefit the relevant clinical study.
Laser-induced fluorescence spectroscopy of uranium monofluoride
Authors: Bai Xi-lin , Wang You-long , Steimle Timothy C.
Published: June 2021

The laser-induced fluorescence excitation spectra of uranium monofluoride have been recorded in the range of 17000-19000 cm−1 using two-dimensional spectroscopy. High resolution dispersed fluorescence spectra and time-resolved fluorescence spectroscopy were also recorded. Three rotationally resolved bands were intensively analyzed, and all bands were found to be derived from the ground state X(1)4.5 with a rotational constant of 0.23421 cm−1. The low-lying electronic states were observed near 435 and 651 cm−1 in the dispersed fluorescence spectra, which were assigned as Ω′ = 3.5 and 2.5, respectively. The vibrational constants for the X(1)4.5 and X(1)3.5 states were calculated. The branching ratios of the dispersed fluorescence spectra for the [18.62]3.5, [17.72]4.5, and [17.65]4.5 states were reported. Radiative lifetime of 332(9) ns, 825(49) ns, and 433(15) ns for the [18.62]3.5, [17.72]4.5, and [17.65]4.5 states were obtained by fitting the time-resolved fluorescence spectroscopy, respectively. Transition dipole moments were performed using the branching ratios and the radiative lifetimes.