bluuebunny/crossref_metadata_2025_split huggingface dataset:
Rhinological Status of Patients with Nasolacrimal Duct Obstruction
Authors: Yartsev Vasily D. , Atkova Eugenia L. , Rozmanov Eugeniy O. , Yartseva Nina D. 
Published: December 2021

Abstract
Introduction Studying the state of the nasal cavity and its sinuses and the morphometric parameters of the inferior nasal conchae, as well as a comparative analysis of obtained values in patients with primary (PANDO) and secondary acquired nasolacrimal duct obstruction (SALDO), is relevant.
Objective To study the rhinological status of patients with PANDO) and SALDO).
Methods The present study was based on the results of computed tomography (CT) dacryocystography in patients with PANDO (n = 45) and SALDO due to exposure to radioactive iodine (n = 14). The control group included CT images of paranasal sinuses in patients with no pathology (n = 49). Rhinological status according to the Newman and Lund-Mackay scales and volume of the inferior nasal conchae were assessed. Statistical processing included nonparametric statistics methods; χ2 Pearson test; and the Spearman rank correlation method.
Results The difference in values of the Newman and Lund-Mackay scales for the tested groups was significant. A significant difference in scores by the Newman scale was revealed when comparing the results of patients with SALDO and PANDO. Comparing the scores by the Lund-Mackay scale, a significant difference was found between the results of patients with SALDO and PANDO and between the results of patients with PANDO and the control group.
Conclusion It was demonstrated that the rhinological status of patients with PANDO was worse than that of patients with SALDO and of subjects in the control group. No connection was found between the volume of the inferior nasal conchae and the development of lacrimal duct obstruction.
Avaliação automatizada da infiltração e remoção celular em scaffolds descelularizados – Estudo experimental em coelhos
Authors: Santos Alex de Lima , Silva Camila Gonzaga da , Barreto Leticia Siqueira de Sá , Tamaoki Marcel Jun Sugawara , Almeida Fernando Gonçalves de , Faloppa Flavio 
Published: December 2021

Resumo
Objetivo Mensuração semiquantitativa e automatizada da remoção de material nuclear e da infiltração celular em scaffolds tendinosos descelularizados (STDs).
Método Foram utilizados 16 coelhos Nova Zelândia puros, sendo o tendão do músculo gastrocnêmio coletado bilateralmente de metade destes animais (16 tendões coletados); 4 foram mantidos como controle e 12 foram submetidos ao protocolo de descelularização (STD). Dos STDs, 8 foram utilizados como implante in vivo no modelo experimental de lesão do manguito rotador (LMR) e os restantes, assim como os controles, foram utilizados na avaliação semiquantitativa e automatizada da remoção de material nuclear. Os oito coelhos adicionais foram utilizados na confecção do modelo experimental de LMR e posterior avaliação da infiltração celular após 2 ou 8 semanas, dentro do STD.
Resultados A análise semiquantitativa e automatizada utilizada demonstrou uma remoção de 79% do material nuclear (p < 0,001 e poder > 99%) e uma diminuição de 88% (p < 0,001 e poder > 99%) na área ocupada por material nuclear após o protocolo de descelularização. Sobre a infiltração celular no STD, foi observado um aumento de 256% (p < 0,001 e poder > 99%) no número de células dentro do STD na comparação entre 2 e 8 semanas de pós-operatório.
Conclusão O método de mensuração semiquantitativo e automatizado proposto foi capaz de mensurar objetivamente a remoção de material nuclear e a infiltração celular no STD.
Using Nonscalp Hair in Scalp Hair Restoration—Theory and Execution
Authors: True Robert H. 
Published: December 2021

AbstractHarvesting of beard and body hair follicles for transplantation can be an effective form of treatment for appropriate patients. These patients may have had prior scalp transplantation and require repair but do not have sufficient scalp donor follicles remaining. Other patients will have these hairs mixed with scalp hairs to produce a greater density of hair on the bald scalp. Follicular unit excision (FUE) is preferred for body and beard follicle harvesting. Not all body hair is suitable for transplantation. Only hairs that are similar in appearance and behavior to scalp hair are suitable for transplantation to the scalp. The best nonscalp sources are the beard and anterior torso. Hairs from other body sites may be used for transplantation to the eyebrows. The standard techniques of FUE harvesting and anesthesia must be modified from those used in scalp harvesting to be safe and effective. With proper patient selection and technique, a significant cosmetic benefit can be achieved from these procedures.
Stroke-Like Migraine after Radiation Treatment Syndrome in Children with Cancer
Authors: Ahmed Qurratulain S. , Sadighi Zsila S. , Lucas John T. , Khan Raja B. 
Published: December 2021

AbstractStroke-like migraine attacks after radiation therapy (SMART) syndrome is a symptom complex of transient neurological deficits, headache, and abnormal cortical contrast enhancement on brain MRI. Pathophysiology is unclear, but exposure to cranial radiation (RT) is a sine qua non. We report five children with SMART syndrome treated with RT therapy for medulloblastoma (n = 3), atypical teratoid rhabdoid tumor (n = 1), and pleomorphic xanthoastrocytoma (n = 1). Median age at tumor diagnosis was 9.4 years (range 5.1–14.7). Median follow-up from cancer diagnosis was 3.1 years (range 1.4–12.9). All patients had 54 Gy focal RT treatment and medulloblastoma children had additional 36 Gy craniospinal irradiation. Median time from the end of RT to first transient neurological deficit was 1 year (range 0.7–12.1). The median follow-up since first SMART episode was 0.6 years (range 0.3–2.6). Presenting symptoms included the gradual development of unilateral weakness (n = 4), non-fluent dysphasia (n = 1), somnolence (n = 1), and headaches (n = 3). Neurological deficits resolved within 30 minutes to 10 days. Transient cortical enhancement on magnetic resonance imaging (MRI) was confirmed in two children and was absent in the other three. Two children had a single and three had multiple episodes over the next few months. Two children with protracted symptoms responded to 3 days treatment with high dose intravenous methylprednisolone. Symptoms ultimately resolved in all patients. SMART syndrome is a rare disorder characterized by slow evolution of neurological deficits with variable abnormal cortical contrast enhancement. The use of steroids may improve symptoms and speed resolution.
Observation of self-assembled InGaN/GaN superlattice structure grown on N-polar GaN by plasma-assisted molecular beam epitaxy
Authors: Khan K. , Diez S. , Sun Kai , Wurm C. , Mishra U. K. , Ahmadi E. 
Published: December 2021

In this paper, we report on the observation of self-assembled InGaN/(In)GaN superlattice (SL) structure in a nominal “InGaN” film grown on N-polar GaN substrate. 350 nm thick InGaN films were grown at different temperatures ranging from 600 to 690 °C. Structural characterization was conducted via atomic force microscopy, scanning transmission electron microscopy, high-resolution x-ray diffraction, and XRD reciprocal space map. A SL structure was unexpectedly observed on all samples. However, the In content in each layer varied depending on growth temperature. By increasing the substrate temperature to 670 °C, a periodic structure composed of 3 nm In0.26Ga0.74N and 3 nm of GaN with a surface roughness of ∼0.7 nm was achieved. This work establishes a method for the growth of InGaN films with high structural quality on N-polar GaN and opens a new pathway for the design and fabrication of various electronic and optoelectronic devices with enhanced performance.
Polymerized hybrid Hf-based hydroquinone/Al2O3 bilayer structure by molecular/atomic layer deposition for non-volatile resistive random access memory
Authors: Lei Jin , Ding Wen-Juan , Liu Chang , Wu Di , Li Wei-Min , Li Ai-Dong 
Published: December 2021

In this work, we fabricated the Pt/Hf-based hydroquinone (Hf-HQ)/Al2O3/TiN/Si bilayer hybrid memory by molecular layer deposition/atomic layer deposition. The hybrid memory units exhibit electroforming-free bipolar resistive switching (RS) characteristics with tiny fluctuation of operation voltages within 0.2 V, ON/OFF ratio above 102, and good endurance/retention properties. Meanwhile, the multi-state data storage capability is confirmed in hybrid devices. The RS mechanism based on conducting filaments has been proposed. The favorable linkage and rupture of the conducting filament prefer to occur at the interface of the hybrid Hf-HQ layer and Al2O3 layer, resulting in the brilliant performances. Furthermore, flexible hybrid memory devices fabricated on bendable mica show comparable RS behaviors to the Si-based ones at the bending radius of 7.5 mm, indicative of great potential in flexible multilevel resistive random access memory applications.
Platypus quercivorus
. [Distribution map].
Authors: CABI  , EPPO  
Published: December 2021

Abstract

A new distribution map is provided for
Platypus quercivorus
(Murayama). Coleoptera: Platypodidae. Hosts: Wide host range but especially
Quercus
spp. and other Fagaceae. Information is given on the geographical distribution in Asia (India, West Bengal, Indonesia, Java, Japan, Honshu, Hokkaido, Kyushu, Ryukyu Islands, Shikoku, Laos, Taiwan, Thailand and Vietnam).
Production of unknown neutron-rich transuranium isotopes 245–249Np, 248–251Pu, 248–254Am, and 252–254Cm in multinucleon transfer reactions
Authors: Li Jingjing , Zhang Gen , Zhang Xinrui , Zhang Yuhai , Liu Zhong , Zhang Feng-Shou 
Published: December 2021

Abstract
The production cross sections of unknown neutron-rich transuranium isotopes of elements Np, Pu, Am and Cm are investigated in multinucleon transfer (MNT) reactions based on the dinuclear system model with GEMINI code. The influence of the incident energy on the production of neutron-rich transuranium nuclei in actinide–actinide collisions is studied. The calculation results show that the final isotopic production cross sections are larger at 1.06–1.10 V
cont than at other energies. Considering the high fissility of transuranium nuclides, 1.06 V
cont is chosen as the optimal incident energy. The N/Z ratio equilibration mechanism in the nucleon transfer process is also studied in this work. The larger difference of N/Z ratio between projectile and target corresponds to larger neutron diffusion during the nucleon exchange process. The 238U beam with high N/Z ratio and neutron-rich actinide targets are good selections to produce neutron-rich transuranium nuclides. The production cross sections of unknown neutron-rich transuranium isotopes 245–249Np, 248–251Pu, 248–254Am, and 252–254Cm are predicted in 238U-induced actinide-based (249Bk, 249Cf, and 252Cf) MNT reactions. It is found that a large number of these unknown neutron-rich transuranium nuclei could be generated at the level of nb to μb in the reactions 238U + 249Bk and 238U + 252Cf. Our research indicates that the reaction 238U + 249Bk is a suitable projectile-target combination in the current experimental conditions and the reaction 238U + 252Cf could be a promising candidate to produce unknown neutron-rich transuranium nuclides in case that the 252Cf target were to be achieved in the future.
Precise Positions of Triton in 2010–2014 based on Gaia-DR2
Authors: Zhang Huiyan , Yu Yong , Yan Dan , Tang Kai , Qiao Rongchuan 
Published: December 2021

Abstract
With unique orbital and physical characteristics, Triton is a very important target because it may contain information of the origin and evolution of the solar system. Besides space explorations, ground-based observations over long time also play a key role on research of Triton. High-precision positions of Triton obtained from ground telescopes are of great significance for studying its orbital evolution and the physical properties of Neptune. As a long-term observational target, Triton has been observed by the 1.56 m telescope of Shanghai Astronomical Observatory since 1996. In this paper, based on our AAPPDI software and with Gaia DR2 as the reference catalog, 604 positions of Triton during 2010–2014 are calculated, with standard errors of 19–88 mas. A comparison between our results and the ephemeris (DE431+nep096) is also given.
Variational approach for recovering viscoelasticity from MRE data
Authors: Jiang Yu , Nakamura Gen , Shirota Kenji 
Published: December 2021

Abstract
This paper deals with an inverse problem for recovering the viscoelasticity of a living body from MRE (Magnetic Resonance Elastography) data. Based on a viscoelastic partial differential equation whose solution can approximately simulate MRE data, the inverse problem is transformed to a least square variational problem. This is to search for viscoelastic coefficients of this equation such that the solution to a boundary value problem of this equation fits approximately to MRE data with respect to the least square cost function. By computing the Gateaux derivatives of the cost function, we minimize the cost function by the projected gradient method is proposed for recovering the unknown coefficients. The reconstruction results based on simulated data and real experimental data are presented and discussed.
Sensitivity analysis and practical identifiability of the mathematical model for partial differential equations
Authors: Krivorotko O , Andornaya D 
Published: December 2021

Abstract
A sensitivity-based identifiability analysis of mathematical model for partial differential equations is carried out using an orthogonal method and an eigenvalue method. These methods are used to study the properties of the sensitivity matrix and the effects of changes in the model coefficients on the simulation results. Practical identifiability is investigated to determine whether the coefficients can be reconstructed with noisy experimental data. The analysis is performed using correlation matrix method with allowance for Gaussian noise in the measurements. The results of numerical calculations to obtain identifiable sets of parameters for the mathematical model arising in social networks are presented and discussed.
Practical identifiability of mathematical models of biomedical processes
Authors: Kabanikhin Sergey , Bektemesov Maktagali , Krivorotko Olga , Bektemessov Zholaman 
Published: December 2021

Abstract
The paper is devoted to a numerical study of the uniqueness and stability of problems of determining the parameters of dynamical systems arising in pharmacokinetics, immunology, epidemiology, sociology, etc. by incomplete measurements of certain states of the system at fixed time. Significance of parameters difficult to measure is very high in many areas, as their definition will allow physicians and doctors to make an effective treatment plan and to select the optimal set of medicines. Due to the fact that the problems under consideration are ill-posed, it is necessary to investigate the degree of ill-posedness before its numerical solution. One of the most effective ways is to study the practical identifiability of systems of nonlinear ordinary differential equations that will allow us to establish a set of identifiable parameters for further numerical solution of inverse problems. The paper presents methods for investigating practical identifiability: the Monte Carlo method, the matrix correlation method, the confidence intervals method and the sensitivity based method. There is presented two mathematical models of the pharmacokinetics of the C-peptide and mathematical model of the spread of the COVID — 19 epidemic. The identifiability investigation will allow us to construct a regularized unique solution of the inverse problem.
Discretization of equations Gelfand-Levitan-Krein and regularization algorithms
Authors: Maktagali Bektemessov , Laura Temirbekova 
Published: December 2021

Abstract
The paper considers the initial-boundary-value inverse problem of acoustics for onedimensional and multidimensional cases. The inverse problems are to reconstruct the coefficients using one-dimensional and multidimensional analogues of the Gelfand-Levitan-Krein integral equations. It is known that such equations are linear integral Fredholm equations of the first kind, which are ill-posed. The aim of the work is to find a numerical solution of the Gelfand-Levitan-Krein equation using iterative regularizing algorithms. Using the specifics of these equations (the kernel of the equation depends on the difference of arguments) it is possible to create highly efficient iterative regularizing algorithms. The implemented algorithms can be successfully applied in solving such problems as reconstruction of blurred and defocused images, inverse problem of gravimetric, linear programming problem with inaccurately given matrix of constraints, inverse problem of Geophysics, inverse problems of computed tomography, etc. The main results of the work are the discretization of the one-dimensional and multidimensional Gelfand-Levitan-Krein equation and the construction of iterative regularization algorithms.
Inverse, ill-posed problems, essentially different solutions and explicit formulas for solutions
Authors: Demidov A.S. 
Published: December 2021

Abstract
A request for an inverse problem, as well as for an incorrect problem produces tens of millions of answers in the Internet. In the past few decades, hundreds of international conferences on these topics have been held annually. Problems of this kind are quite involved, and their numerical analysis requires the development of special methods and numerical algorithms. Explicit formulas provide the main tool for testing these methods and numerical algorithms. The Cauchy problem for an elliptic equation is a classical ill-posed problem, which serves as a model for many inverse and incorrect problems. In the present paper we give a numerically realizable explicit formula for solving the Cauchy problem in a two-dimensional domain for a general second-order linear elliptic equation with analytic coefficients and the Cauchy analytic data on the analytic boundary.
Controlling effort, catch and biomass in models of the global marine fisheries
Authors: Ryzhenkov Alexander V. 
Published: December 2021

Abstract
The starting point is the reduced model of global marine fisheries designated by W-3. The main variables of an ordinary differential equation are: the stock of bioresource, its net natural increase, as well as the catch value, which linearly depends on exogenous effort and nonlinearly on available biomass. In W-4, the effort became endogenous as a result of its positive feedback from biomass.
In both models, there are values of control parameters in the catch equations, in which the value of the latter can be maintained for a long time at the maximum stable level, with the exception of transition sections. The principle of necessary precaution is fulfilled for small fish stocks more reliably in W-4 than in W-3, thanks to the transformation of the saddle into an unstable node with a common stable node.
For these one-dimensional models, the author proposed an original generalization - the R-1 model of two nonlinear ordinary differential equations. In the latter effort, a new phase variable appears, subordinated to proportional control and derivative regulation. Biomass serves as a “prey”, and the effort appears as a “predator”.
For two key control parameters, areas of change were identified for which the target stationary state is a locally asymptotically stable node or focus in R-1. A policy has been proposed for the restoration of depleted fish stocks and a transition to a long-term maximum sustainable harvest has been determined.
Optimization over a wide time frame (from 40 to 400 years) allows us to calculate the values of the selected control parameters for which the integral catch volume in R-1 is higher than in W-4 for the same initial values of stock, effort and catch. Social constraints from below on the magnitude of the effort, as well as the desired nature of the transition to the target stationary state, are taken into account. The danger of biomass collapse is overcome, unlike previous models.
VIII-th International Young Scientists Conference on Information Technologies, Telecommunications and Control Systems
Authors: Kruglov Artem , Aksenov Konstantin 
Published: December 2021

The VIII-th International Young Scientists Conference on Information Technologies, Telecommunications and Control Systems (ITTCS) will be held from 16th to 17th of December, 2021, at the Innopolis University.
The Conference agenda will work as a competence platform, providing facilities for efficient communication to boost the IT science and engineering knowledge of young scientists and help them in their professional development. Young scientists will be given a unique chance not only to improve their presentation skills and public speaking abilities but to gain an experience of scientific publication.
The importance of the project lies in the need to create conditions for the growth of recognition of a young scientist in world scientific circles and an increase in interest in his work, an increase in the level of scientific publications of students, postgraduate students and young scientists, and an increase in their quality. The exchange of experience in the field of professional interests with colleagues from foreign and Russian universities and scientific organizations will improve the qualifications of researchers and establish promising scientific contacts among young scientists.
List of Programm Committee, General Chair are available in this pdf.
Mathematical modeling and optimization of traffic flows
Authors: Kasatkina E V , Vavilova D D 
Published: December 2021

Abstract
The article presents a mathematical model for optimizing traffic flows in an urban environment based on a stochastic approach. It allows to optimize traffic flows using a genetic algorithm by changing the phases of traffic lights operation. An exponential law of distribution of the generation of cars at the input points of the transport network has been established. The relationship between the intensity of servicing the traffic flow and the time of the green signal of the traffic light is revealed. Practical calculations have confirmed the applicability of the optimization model in traffic management.
Quantization noise in low bit quantization and iterative adaptation to quantization noise in quantizable neural networks
Authors: Chudakov D , Goncharenko A , Alyamkin S , Densidov A 
Published: December 2021

Abstract
Quantization is one of the most popular and widely used methods of speeding up a neural network. At the moment, the standard is 8-bit uniform quantization. Nevertheless, the use of uniform low-bit quantization (4- and 6-bit quantization) has significant advantages in speed and resource requirements for inference. We present our quantization algorithm that offers advantages when using uniform low-bit quantization. It is faster than quantization-aware training from scratch and more accurate than methods aimed only at selecting thresholds and reducing noise from quantization. We also investigated quantization noise in neural networks for low-bit quantization and concluded that quantization noise is not always a good metric for quantization quality.
Creation and implementation of a set of game strategies based on training neural networks with reinforcement learning
Authors: Kozlov D S , Polovikova O N 
Published: December 2021

Abstract
The study explores the problems of reinforcement learning and finding non-obvious play strategies using reinforcement learning. Two approaches to agent training (blind and pattern-based) are considered and implemented. The advantage of the self-learning approach with reinforcement using patterns as applied to a specific game (tic-tac-toe five in a row) is shown. Recorded and analyzed the use of unusual strategies by an agent using a pattern-based approach.