bluuebunny/crossref_metadata_2025 huggingface dataset:
The effects of COVID-19 pandemic on the premature mortality in Serbia in 2020
Authors: Galjak Marko
Published: January 2022

Serbia is experiencing a massive number of deaths due to COVID-19. One way to express this mortality is by measuring the years of potential life lost to this disease. This paper looks at the cost of the pandemic in 2020 to premature deaths in Serbia. The final data on mortality in 2020 in Serbia provided by the Statistical Office of the Republic of Serbia is used to measure this loss. Premature mortality is examined through geographical, age, and sex dimensions. In total, 64.620 years of potential life were lost directly by COVID-19, i.e., 1019.14 years of potential life per 100 000 people younger than 75. Men lost 2.5 as many potential years of life then women did. Moreover, the region of eastern and Southern Serbia fared much worse than any other region. There is no clear pattern regarding the rural/urban divide, as some of the hardest-hit municipalities were rural and urban. The analysis was expanded to include the estimate of the economic cost of premature mortality due to the COVID-19. In 2020 more than $0.34 billion was lost to premature deaths, and by the end of 2021, this number will likely be well over $1 billion when the pandemic ends. The direct cost of premature deaths on future birth rates will not be pronounced as very few women younger than 50 died to affect future birth rates significantly.
The structure of relations between five-factor model and dimensions of motivation among junior karatekas
Authors: Ivanović Miroljub , Ivanović Uglješa
Published: January 2022

The aim of this study was to examine the latent structural relations between the main personality traits and dimensions of motivation among junior karatekas. Empirical research was conducted on a pertinent sample (N = 148) of karatekas from Valjevo, aged 15.18 on average (SD = 1.9). Three measuring instruments were used: the Big Five Inventory - BFI, the Sport Attitudes Inventory - SAI, and the Task and Ego Orientation in Sport Questionnaire - TEOSQ. The results of the Pearson's correlation coefficient have shown the significance level of p ≤ .05, and a significant number of bivariate linear correlations (of low or moderate intensity) between the manifested variables. Using the canonical correlation analysis, two significant canonical functions were extracted. The first unipolar pair of canonical factors in the personality traits section, with 44% of the explained variance, was maximally defined by Conscientiousness and Extraversion, and was defined to a lesser degree by the Openness/Intellect variable, as well as dimensions of motivation (motives to achieve power, motives to achieve success and orientation aimed towards the task). The second isolated bipolar pair of canonical factors in the personality traits domain, with 21% of the explained variance, was determined by the Neuroticism variable, and to a lesser degree by Agreeableness and Conscientiousness, as well as the motive to avoid failure and orientation aimed towards the goal. The obtained results have shown that the measuring instruments used in this research have satisfactory construct and convergent validities, as well as satisfactory reliability of internal consistency, and can therefore be used in personality assessment of Serbian adolescents. The results of this transversal research offer relevant empirical contribution and important implications to everyday sports practice and better understanding of the complex constructs mentioned in this research. In addition, this research contributes to sports psychology, which enables higher level of understanding of the functioning of an athlete's personality during adolescence.
Wrist injuries in gymnasts: Systematic review
Authors: Đorđević Dušan , Stanković Mima , Ilić Predrag
Published: January 2022

The aim of this research was to summarize the relevant literature on wrist injuries in gymnasts and to determine the prevalence of injuries based on a systematic review of previous research. In sports gymnastics, the upper extremities are the bearers of the whole body, which leads to consequences such as wrist injuries. The types of injuries are different, depending on its excessive use. The combination of a period of rapid growth and intensive training creates the conditions for gymnasts to be more prone to injuries, especially wrist injuries. Electronic search of papers was performed in databases: KoBSON, PubMed and Google Academic, and the studies were published in the period from 2010 to 2020, while a descriptive method was used to analyse the obtained data. Based on the database search, 14 studies met the criteria. Subjects who participated in questionnaires and experiments and different types of corrective treatment, sought to prevent further progression of the injury, and most subjects made major progress in suppressing or completely regressing their wrist injury. Raising awareness of the existence of this injury is of great importance in sport gymnastics, so early detection and prevention of injury is crucial.
Improving organic production by introducing biopreparations through yield analysis and soybean yield components
Authors: Vojnov Bojan , Šeremešić Srđan , Vasiljević Marjana , Manojlović Maja , Milešević Vladimir , Babec Brankica
Published: January 2022

Organic agriculture as a system of sustainable agricultural production today is essential part in the development of value chains of products that have high nutritional value and environmental characteristics. Soybean is an important source of protein and oil, both for food and feed and belongs to one of the most important field crops. Continuous work on improving cultivation technology in organic systems of agricultural production is of great importance for expanding sustainable farming systems. Limited mineral nutrition in organic production has resulted in a large number of studies that were aimed primarily at increasing yields, as well as the quality of the final product, where the application of foliar fertilizers and fertilizers generally occupies an important place. The research aimed to present the possibility and importance of the application of fertilizers in organic soybean production. Three preparations (Italpollina NPK 4:4:4, Biofor soja, Wuxal ascofol) on soybean variety NS Kaća were tested. The analysis of the obtained results showed that the weight of 1000 grains differed statistically significantly between treatments, while fertilization reacted positively to the soybean grain yield in relation to the control variant, but no statistical significance was determined. The highest yield was determined on the treatment with Biofor soja (4.3 t ha-1 ).The results obtained after one year of research can serve as a guideline for improving the technology of soybean cultivation in organic production, but it is necessary to conduct further research on the application of different foliar fertilizers at different stages of growth, as well as in different doses.
Theoretical Modeling of Ring Propulsor in Steady Flow
Authors: Mishkevich Victor
Published: January 2022

The ring propulsor concept employs a permanent magnet motor located in a nozzle, and a ring fastened to the propeller tips. Blades are driven by the rotating ring which plays role of the electric motor rotor. This kind of shaftless propulsor, sometimes called Ring Propeller or Integrated Motor-Propulsor, can be used in submersibles and off-shore underwater equipment. Several designs were developed and tested by AEG-Telefunken/Jastram Forschung (Germany), Harbor Branch Oceanographic Institution (USA), and others. In this work, theoretical models of the ring propulsor are developed The lifting line model is hosed on the classic moderately loaded propeller lifting line model. This model is modified in order to take into account new boundary conditions for the radial circulation distribution and nozzle surface effect on the induction factors. The lifting surface model also includes new features, such as radial, axial, and angular non-uniformity of the flow induced by a nozzle. Both models employ corrections on fluid viscosity in lift and drag force components. In performance prediction, special attention should be paid to the losses in a gap between rotating parts and the stationary nozzle. These losses are estimated based on the Taylor's formula. The axisymmetric propulsive nozzle is simulated as a thick lifting body. The nozzle-propeller interaction is taken into account by the iteration technique. Numerical simulations are performed to demonstrate typical circulation distributions, as well as induced velocities.
Stern Bearings, Background and Characteristics
Authors: Reed F. Everett
Published: January 2022

Because existing ships cover a range of stern bearing designs, the paper starts with a brief history of the development of stern bearings and an evaluation of existing designs. It then discusses the relative energy losses in different types of bearings and some interesting experiences. Next consideration is given to alignment and how oil lubricated bearings handle balanced loads and moment loads. The paper concludes with considerations of procedures for minimizing the problems of oil lubricated bearings working in water and a suggested process for eliminating intermediate struts.
Prediction of Unsteady Performance of Surface-Piercing Propellers
Authors: Young Yin Lu , Kinnas Spyros A.
Published: January 2022

A 9-D low-order boundary element method, PROPCAV, has been developed in the past for the prediction of unsteady sheet cavitation on fully submerged propellers subjected to non axisymmetric inflows. The objective of this research is to extend PROPCAV to predict the performance of surface-piercing, or partially submerged, propellers. The current scheme applies a linearized free-surface boundary condition along with an infinite Froude number assumption. The method is capable of modeling the unsteady flow and blade forces through the stages of entry to and exit from the free. surface. The convergence of the predictions with grid and timestep parameters is studied. Preliminary forces predicted by PROPCAV are in reasonable agreement with experimental measurements.
The Development of the Propeller Design for the World's Largest Reefer Container Ships
Authors: Meyne K. J. , Praefke E. , Koop K. H.
Published: January 2022

At the end of the year 1999, the German shipyard HDW (Howaldtswerke Deutsche Werft) delivered a series of two open-top reefer container vessels of 2 million cu-ft each to the renowned fruit shipping company Dole Fresh Fruit. The vessels entered service at the end of 1999 and were then the largest of their kind. HSVA (the Hamburg Ship Model Basin) has conducted the model tests in advance. The propellers have been manufactured by the German company MMG (Mecklenburger MetallgujB). The article describes the propeller design specification (with special emphasis on low vibration levels in the accommodation areas), propeller design considerations, and test results (powering performance, cavitation performance, and vibration excitation) with three different model propellers. The authors also present the full-scale sea trial results as far as they are available.
A Coupled Viscous/Potential-Flow Method for the Prediction of Propulsor-Induced Maneuvering Forces
Authors: Warren C. L. , Taylor T. E. , Kerwin J. E.
Published: January 2022

A technique for the analysis of propulsor-induced maneuvering forces on the surface and underwater vehicles has been developed. The method is capable of modeling general propulsors but is especially suited to complex integrated propulsors and their highly contracting stern flows. Integrated propulsors exhibit strong interactions of the blade-rows, duct, and vehicle stern. The method described herein is a robust means to analyze propulsor-induced maneuvering forces, including those arising from complex propulsors.

The heart of the maneuvering force prediction is a three-dimensional, unsteady lifting surface method for the calculation of blade forces on both rotors and stators. The lifting surface method includes features that are important for the modeling of complex propulsors.

Temporally-varying forces are computed for a blade-row rotating in a spatially-varying flow field. The spatially-varying flowfield around a maneuvering vehicle is obtained by coupling the unsteady lifting-surface method with a three-dimensional, time-averaged Reynolds Averaged Navier-Stokes viscous flow solver. The coupled technique allows the designer to compute maneuvering forces while accounting for effective wake issues and propulsor-hull interactions. Issues important to the coupling of a potential-flow method and a three-dimensional viscous flow solver are discussed.

Verification of the method has been performed on a variety of geometries and vehicles. Two examples are shown. Preliminary results show that the method is able to compute propulsor-induced maneuvering forces for such vehicles. The results suggest that this maneuvering force prediction method has great potential for the propulsor designer.
The Development of a New Standard for the Vibration of Ship Propulsion Systems
Authors: Antonides Gary P. , Feldman Samuel
Published: January 2022

The U.S. Coast Guard has traditionally used the methodology and criteria in MIL-STD-167-2A and its predecessors for acceptance testing of new ship propulsion systems. The original standard was written in 1954, with geared turbine drives in mind. It has been changed somewhat over the years but has not kept up with the development of new types of propulsion systems. The Coast Guard tasked John J. McMullen Associates, Inc. to propose a new standard with updated requirements for conventional propulsion systems, and to include requirements in the new standard for nonconventional propulsion systems such as thrusters, cycloidal propellers, and water-jets. For conventional systems, a review of existing criteria from the U.S. and other countries was performed. In the case of thrusters, water jets and cycloidal propellers, there are no U.S. or international standards covering these systems, so several manufacturers were requested to famish any relevant data and their recommendations. A draft of this standard was distributed widely to industry and government to get comments and suggestions. This report explains the rationale behind the proposed criteria.
A Hydrodynamic Design Procedure for Multi-Stage Blade-Row Propulsors Using Generalized Linear Model of the Vortex Wake
Authors: Achkinadze Alexander S. , Krasihiikov Vladimir L. , Stepanov Ivan E.
Published: January 2022

This paper presents the hydrodynamic design procedure for multi-stage blade-row marine propulsors using the original authors' model of the vortex wake. The special attention is paid to optimization algorithms that solve the problems about optimum spanwise circulation distribution and optimum chord length and thickness of the blade sections for wake-adapted propellers. A developed method allows the design of the podded propulsors and captures the potential part of the blade rows I pod "effective" velocity field. The contra-rotating propellers, rotor wane wheel device, and notional AZIPOD with tandem propellers are considered to illustrate the design procedure.
Numerical Modeling of Podded Propulsors and Rudder Cavitation
Authors: Kinnas Spyros A. , Natarajan Shreenaath , Lee Hanseong , Kakar Karan , Gupta Apurva
Published: January 2022

Various computational methods that have been developed in the past are combined in this paper to predict: (a) the performance of podded propulsors, and (b) the sheet cavitation on a rudder which is subject to the flow of an upstream propeller. An 3-D Euler-based finite volume method (GBFLOW-3D) is used to predict the flow around a pod with a strut, and is coupled with MPUF-3A, a lifting surface vortex-lattice method, which is applied to the propeller(s) of the pod. The propellers are modeled via body forces in GB FLOW. The 3-D effective wake for each of the propellers of the pod is evaluated by subtracting from the total inflow (determined in GBFLOW-3D) the velocities induced by the same propeller ( determined in MPUF-3A). Several iterations between GBFLOW-3D and MPUF-3A are performed until convergence is reached. The three-way interaction among the pod/strut and the two propellers is fully accounted for at the end of the iterative process. The inflow to the rudder is determined by applying GBFLOW-3DIMPUF-3A on the propeller upstream. Once the propeller-induced flow to the rudder is evaluated, PROPCAV (a potential-based boundary element method), is used to predict the cavitation patterns on the rudder. The effects of the hull are considered by using the image model in PROPCAV. Several validation studies with other methods, some analytical solutions, and experiments are presented.
Advanced Technology of Propeller Shaft Stern Tube Seal
Authors: Yamajo Seiji , Matsuoka Iwao
Published: January 2022

The paper outlines the details concerning historical perspective and recent developments to meet a requirement that lube oil and seawater leakage must be prevented under any circumstances. Using a compressed air chamber, the lube oil in the stern tube is completely separated from seawater by providing a controlled "buffer zone" between lip-type sealing rings. A constant quantity of compressed air supplied from within the ship passes through the air chamber and is spouted into the sea. An air control unit automatically detects any change of draft level and adjusts the pressures to maintain the optimum pressure on each sealing ring. The key mechanism to detect the draft change correctly and to adjust the pressure balance is explained. Specific design and project applications for the stern tube air seal on ocean-going and other marine vessels using line shaft propulsion and pod propulsion are explained.
Propulsion Shaftline Bearing and Gear Teeth Failure Investigation on the "C" Class British Columbia Ferries
Authors: Cowper Bruce , Kolomojcev Alex , Ng K.S. , Stewart Greg
Published: January 2022

British Columbia Ferry Services Inc. operates five "C" class passenger-car ferries that were delivered in 1976 (3 ships) and 1981 (2 ships). The vessels have a service speed of 19.0 knots, are 457 ft. long, and have a gross tonnage of 6,550 tons. They have a capacity of about 360 cars and 1,500 passengers. Their route varies from Vancouver-Vancouver Island-Sunshine Coast, with up to 9 round trips per day. The vessels have a double-ended single screw propeller configuration. Each of the controllable pitch propellers are driven by one or two diesel engines rated at 5,930 HP, through single reduction gearboxes. The two gearboxes are connected via quill shafts that are concentric with the pinion shafts. The pinion shafts are engaged via clutches at the end of each of the quill shafts. This arrangement enables one or both of the diesel engines to drive either one or both of the propellers. In 1998 a catastrophic failure occurred to the bull wheel on one vessel. The bull gear teeth broke off taking out both pinions. In 1999 the bull gear on another vessel was replaced as a result of fractured gear teeth, found during an inspection. In addition, a number of failures have occurred to both the lineshaft and pinion shaft bearings. An investigation was conducted to determine the source of the failures and the most prudent and economical course of action. To accomplish these objectives a review of the system design and maintenance/failure history was conducted, as well as theoretical modeling and alignment and vibration measurements. It was found that the failures occurred due to misalignment. A realignment program has been undertaken, with the first realignment completed in February 2002. This paper describes the failure investigation and the results of the realignment work conducted.
Experimental Analysis of the Propeller Rudder Interaction
Authors: Felli M. , Guj G. , Di Felice F. , Aloisio G.
Published: January 2022

In the present study an experimental analysis of the propeller-rudder interaction has been performed in a cavitation tunnel. The experiments simulated the condition of a rudder operation aft of a propeller but without the influence of the hull. The activity has been performed through dynamometric measurements, LDV phase sampling techniques and flow visualizations with an high speed camera.
Study of Puller Podded Propulsors with Tapered Hub Propellers in Straight Course and Azimuthing Conditions
Authors: Islam Mohammed Fakhrul , Veitch Brian , Bose Neil , Liu Pengfei
Published: January 2022

This paper presents the results of an experimental study on the effects of propeller hub angle and azimuth conditions on the propulsive characteristics of puller podded propulsors in open water conditions. The propulsive performance of two model puller-podded units with different propeller hub geometry was measured using a custom-designed pod dynamometer in a towing tank. The podded units were tested to measure the thrust and torque of the propeller and the forces on the whole unit in three orthogonal directions. The tests were conducted for a range of advance coefficients from 0 to 1.2, combined with the range of static azimuth angles from +20° to -20° with a 10° increment. The dynamometer system consisted of a six-component global dynamometer and a three-component pod dynamometer. The variation in the propulsive pe1formance due to the changes in hub geometry was examined first, followed by a study on the effect of azimuth conditions on the forces and moments on the propulsor. The force and moment measurements are presented as functions of advance coefficient and azimuth angle. The results showed that for the range of azimuth angles tested, the thrust and torque of the propeller and the forces on the whole unit in three orthogonal directions are functions of the azimuth angle for puller propulsors.
Anti-singing Edge Effect on Propeller Open Characteristics
Authors: Hasuike Nobuhiro , Yamasaki Shosaburo
Published: January 2022

Generally, the propeller is applied with an anti-singing trailing edge for the prevention of irregular noise resulted from Karman vortices generated from the trailing edge of the propeller. It is well known that the anti-singing trailing edge exercises a greater effect on propeller open characteristics (POC in short) and propeller shaft speed, the effect of which is to be taken into account when propeller pitch is decided accordingly. On the other hand, in the propeller open test (POT in short), the finished accuracy of the trailing and leading edges greatly influences test results; however, it is difficult to attain higher accuracy on the very thin trailing edges of the propeller model. As a result, the effect of the anti-singing trailing edge is studied experientially in spite of a greater effect of the anti-singing trailing edge upon the POC.

With this research based on the POT using 400 mm diameter model propellers in the two different conditions, without (case-A) and with (case-BJ the application of anti-singing trailing edge, the POC prediction was made through several calculations by means of potential flow theory (lifting surface, source and quasi-continuous vortex lattice method (SQCM in short), surface panel method) and generally applicable CFD.

Although the calculation results by the potential flow theory overestimated the values of differences of thrust and torque between case-A and case-B respectively, the CFD calculation result showed a closer agreement with the POT results.

Finally, a reasonable agreement was verified between the CFD calculation result and the sea trial results with the full-scale vessel.
Alignment of Direct-Coupled Large 2-Stroke Marine Propulsion Engines
Authors: Bergande Jochen
Published: January 2022

Market demands and development trends of the past 10 years have lead to an increase of the ship hull bending and simultaneously lowered the flexibility of the propulsion shafts. Optimum large bearing distances and pre-compensation of influences affecting alignment need to be considered for the alignment layout of the propulsion shaft line. Calculations using advanced 3D FE based crankshaft models with elastic bearings and clearance are utilised to evaluate alignment measurement result.
Measuring John Ericsson's USS Monitor Propeller to Micron Accuracies using Laser and White Light Scanning Techniques
Authors: Hand Steven D. , Schindelholz Eric , Clark James F. , Mongon William J.
Published: January 2022

The USS Monitor, designed by inventor John Ericsson, was recovered by NOAA in 1998, conserved over the next eight years, and is now on display at The Mariners' Museum in Newport News, Virginia, where it was scanned in place. This presentation and the technical paper describes the scanning and processing of data for the recovered propeller. Two different measurement technologies were employed to meet the goal of high accuracy and high resolution. A coherent laser radar system was used to scan the overall propeller at millimeter resolutions for documenting overall size; a structured white light scanner was employed to scan at micron resolutions to capture details such as surface cracks and graffiti etched on the blades. The scanned point clouds were then merged to generate an accurate model for dimensional and hydrodynamic analysis. This presentation provides detail and highlights of the scanning and data analysis activity.
Improved Algorithms for the Design/Analysis of Multi-Component Complex Propulsors
Authors: Kerwin Justin E. , Michael Thad J. , Neely Stephen K.
Published: January 2022

This paper describes several new approaches to the solution of the hydrodynamic design/analysis problem for a wide class of propulsors including ducted, podded, waterjets (and even conventional open propellers). This work builds on the concept of the coupled axisymmetric j/ow/lifting surface representation of the total flow field initially developed in the Marine Hydrodynamics Laboratory at MIT starting in the early 1990's.
An Environmentally Compatible Lubricant for Sterntube Shafting and Bearing Systems
Authors: Sada Hiroyuki , Yamajo Seiji , Hawkins David W. , Kawazoe Tsuyoshi
Published: January 2022

Medium and large merchant vessels use oil-lubricated shafting and bearings in the sterntube. Oil leakage from the sterntube is a serious environmental issue in these vessels. In this paper a newly developed, environmentally compatible lubricant for such sterntube systems is outlined. Properties required for a sterntube lubricant and a suitable base fluid are discussed Environmental properties, viscosity, corrosion prevention, water contamination lubrication and seal compatibility of the new lubricant are described.
O teatro de objetos e a sociedade de consumo
Authors: Castro Kely Elias de , D'Ávila Flávia
Published: January 2022

Neste artigo apresentamos uma série de reflexões, escritas a quatro mãos, que abordam a inserção do objeto real nas artes cênicas, como um fenômeno do desenvolvimento da sociedade de consumo e de outros fatores históricos que ocorreram ao longo do século XX. A maior ênfase é dada ao teatro de objetos, movimento que se desenvolveu entre as décadas de 1970 e 1980. Nele, observa-se a transgressão de conceitos tradicionais do teatro de animação, além do mero funcionalismo dos objetos, transformando-os em metáforas da própria condição humana e questionando sua condição de mercadoria na sociedade capitalista.
Resolving Not to Make New Year’s Resolutions
Authors: Faiman, PhD, MSN, APRN-BC, AOCN®, FAAN Beth
Published: January 2022

Recently, a colleague and I aimed to discuss something other than the surge in the number of COVID-19 cases that have affected the country. Advanced practitioners (APs) across the nation are facing unpredictable and stressful situations such as critically short staffing and decision-making challenges that surround patient safety. These concerns have reemerged as the number of patients and health-care providers diagnosed with COVID-19 continues to climb. My colleague and I discussed how we long for the day when we can enjoy even a brief pause in the seemingly unrelenting chaos.
Uterine Leiomyosarcoma
Authors: L. Byar, MSN, APN, BC, BMTCN Katherine , Fredericks, MD, MPH Tricia
Published: January 2022

Leiomyosarcoma (LMS) is the most common soft tissue sarcoma in adults and can occur in any part of the body. Uterine leiomyosarcoma (uLMS) is the most common location for LMS, making up 2% to 5% of all uterine malignancies. It is an aggressive tumor that is challenging to treat because of its resistance to standard therapy. The majority of patients (60%) are diagnosed with early-stage disease. However, regardless of the stage, uLMS has a poor prognosis. Surgical resection is the cornerstone of treatment for patients with localized LMS independent of the site of origin. Adjuvant chemotherapy for early-stage disease remains controversial as multiple clinical trials have failed to demonstrate benefit on overall survival. Progress has been made in therapy for advanced and recurrent disease. This case study will highlight the current and emerging data regarding novel therapies for women with uLMS.
Belantamab Mafodotin-blmf: A Novel Antibody-Drug Conjugate for Treatment of Patients With Relapsed/Refractory Multiple Myeloma
Authors: Behren Ketchum, PharmD Emily , Clarke, PharmD, BCOP Andrea , B. Clemmons, PharmD, BCOP Amber
Published: January 2022

Multiple myeloma (MM) is a hematologic malignancy characterized by proliferation of plasma cells with or without production of monoclonal immunoglobulins. Management of patients with MM begins with induction therapy, typically a proteasome inhibitor (PI) with dexamethasone and an immunomodulator (IMID), followed by autologous hematopoietic stem cell transplantation in eligible patients. Although various treatments are available, MM is considered incurable, and patients with progression after multiple treatment lines, including CD38 monoclonal antibodies, have a median overall survival of 8.6 months. Belantamab mafodotin-blmf (Blenrep) is a first-in-class antibody-drug conjugate directed against B-cell maturation antigen (BCMA) that obtained U.S. Food and Drug Administration accelerated approval in August 2020 for patients with multiply relapsed/refractory MM. This article provides information on the mechanism of action, efficacy, safety, monitoring, and current place in therapy for belantamab mafodotin-blmf.
“Social fabric” of the city in the mirror of architecture
Authors: Mukhamedzhanova Nuriya Mansurovna
Published: January 2022

The relevance of the selected topic is determined by the fact that the city first and foremost is the center of culture and civilization, which characterizes the development of the surrounding territory and the entire country; secondly, it is the most vivid manifestation of social challenges that modern society is faced to solve. The goal of this research lies in tracing interrelation between the social problems of modern society and the architectural environment of the city. The subject of this article is the modern urban residential development, which is the center of people’s everyday life, as well as forms their attitude towards the city and the country overall. The theoretical framework is comprised of the basic provisions of urban studies presented by the Western and Russian authors: F. Braudel, A. Gutnov, G. Simmel, L. Wirth, R. Park, G. Revzin, F. Urban, C. Ellard, and others. The author proves that the development of capitalist relations in the XX century posed a problem of large-scale housing development, which had to meet the two key requirements: a) be affordable for the consumer; b) be profitable for the property developer. Industrialization, unification and typification of construction became the way to solve this task – the modern urban neighborhood units, slums of industrial and postindustrial era, in which there is neither past nor future alongside social hierarchy and local community united by common goals and values. Having assessed this phenomenon, the author proves that living in such environment aggravates the social, spiritual, and psychological problems of citizens, described by the classics of urban studies. Therefore, the main conflict of modern city is the clash between the economic efficiency of housing development and the aesthetic requirements for the organization of residential environment. This conflict goes beyond the framework of architecture due to the fact that the principles of industrialization, unification, and typification are now universal to all spheres of social life, including culture.
The impact of personality traits of Chelyabinsk residents upon the perception of information on environmental situation
Authors: Smirnova Irina Gennad'evna , Dobrynina Iana Sergeevna
Published: January 2022

The object of this research is the residents of Chelyabinsk, while the subject is the anxiety in perception of environmental information. Chelyabinsk was selected as a typical metropolis with the established industrial image, where the existing environmental situation differs from the average in the country. Attention is turned to the problem of environmental anxiety characteristic for people living in large cities. Analysis is conducted on the peculiarities of collective perception of information on environmental problems by urban residents, as well as environmental anxiety that occurs as a response to the environment and related information. It is noted that this problem falls not only under the scope of ecology, but also ecological consciousness of the population and image of the city. The novelty of this research lies in revealing personality traits that contribute or impede the development of anxiety in perception of information by residents of the city. Within the framework of this study, the author developed the projective test for assessing the situational anxiety. For determining personal anxiety and other accentuations, the article employs Smishek's “characterological questionnaire, as well as self-actualization test (SAT). This article is first to provide summary results of all three tests. Several groups of city residents with different response to environmental information are revealed, among which are the groups with personal and situational anxiety. The groups are described in terms of accentuations and personality traits.
On the adaptation of foreign students
Authors: Avakova Ol'ga Viktorovna
Published: January 2022

Over the recent years, internationalization of the educational process draws heightened interests to foreign students, which in turn, entails a surge of research dedicated to the problems of their adaptation. The goal of this article lies in analyzing the cross-cultural adaptation of foreign students from non-CIS states who study in Russia. The subject of this article is the targeted work of the academic staff on the adaptation of foreign students. Methodological framework is comprised of the following approaches: individual, personality-oriented, activity-oriented, humanistic, and cross-cultural, which takes into account the ethnic and cultural-specific peculiarities of foreign students. The relevance of this topic is justified by the globalization trends of international educational space, as well as strategic tasks of the Russian higher education – stimulate the export of educational services, attract foreign students, and promote the integration of foreign specialists in the Russian job market. The scientific novelty lies in determination of the factors that either contribute to or obstruct the adaptation of foreign students in the Russian universities, as well as the agents of adaptation. On the example of Moscow State University of Technology "STANKIN", the author analyzes the peculiarities of adaptation process, as well as the factors that improve the living and learning conditions of foreign citizens in the new sociocultural environment, increase the level of multicultural interaction within the framework of the educational institution. It is established that the adaptation of foreign students depends on the psychophysiological, educational-cognitive, sociocultural and casual factors, which are closely interrelated. The problems faced by foreign students are associated with submerging to a new sociocultural and educational environment of the university; therefore, the process of their adaptation should be organized, targeted, and integrated.
V. V. Zenkovsky on the pages of the “Russian School Abroad”
Authors: Kirzhaeva Vera Petrovna , Marinichenko Alla Ivanovna , Vishlenkova Svetlana Gennad'evna
Published: January 2022

The subject of this research is the creative activity of the prominent Russian pedagogue, psychologist, philosopher, figure of the socio-pedagogical movement, and active participant in religious life of the white émigré V. V. Zenkovsky (1881–1962) in the leading educational journal “Russian School Abroad”, which was issued in Prague from 1923 to 1931. The goal is to examine the array of publications of the scholar, including articles published under pseudonyms, for determining their scientific and socio-pedagogical significance in the context of pedagogical life and pedagogical discussions of the 1920s – 1930s. Of special importance is the possibility of reconstructing the scientific dialogue between V. V. Zenkovsky and S. I. Gessen. The scientific novelty of this research lies in the sequential analysis of the entirety of texts published by the scholar in the journal “Russian School Abroad”, genre diversity of these publications (from problematic articles to informative notes), determination of problematic areas and specificity of the pedagogical discourse of V. V. Zenkovsky, who greatly contributed to modern pedagogy and psychology, theory and practice of school education, as well as actively participated in socio-pedagogical movement, coordinated the school work of Russian émigré in Europe and outside it. The article introduces the little-known and hard-to-access publications of V. V. Zenkovsky, namely his peer reviews of the Soviet psychological-pedagogical literature, and comments about Zenkovsky himself.
General concept for detecting intrusions of unknown type based on neural networks
Authors: Simavoryan Simon Zhorzhevich , Simonyan Arsen Rafikovich , Popov Georgii Aleksandrovich , Ulitina Elena Ivanovna
Published: January 2022

This article is dedicated to the problem of detecting intrusions of unknown type based on neural networks that bypass the system of information security in automated data processing systems and are not recognized as spiteful. Development of the means, methods and measures for detecting or preventing such hidden attacks is of particular relevance. Methodological research on the development of procedure for detecting intrusions are based on the achievements of systemic analysis, systemic-conceptual approach towards protection of information in automated data processing systems and achievements of the theory of neural systems in the area of ensuring information security. The object of this research is the intrusions of unknown type in automated data processing systems. The subject is the neural networks, namely neural networks of direct action. The main result lies in the development of neural network of direct action in form of the diagram of neural network links for detecting intrusions. For solving this task, the author developed: 1) The system of input indicators of the neural system;                2) Scales for the assessment of values of the formed indicators; 3)  General procedure for detecting intrusions based on neural networks, the essence of which consists in implementation of the following sequence of actions: a) formation of the list of all the main parties to the process of detection of intrusion; b) formation of the set of parameters that characterize each of them; c) formation of the set of numerical characteristics for each parameter using the assessment scales of the formed indicators; d) analysis of the parameters of the configuration of neural network The developed procedure may serve as the basic in further practical developments of the concept of detecting intrusions of unknown types based on neural networks.
Research on the localization of lotus patterns from the perspective of the philosophy of design
Authors: Wan Jinbo
Published: January 2022

Art design is a visual form and spiritual bearer of culture that ensures universal language for communication between civilizations of the world. Competitiveness of the nation is not only a reflection of its economic power, but what is more important, recognition of its culture. Chinese patterns were used throughout the development of Chinese nation and imparted with spiritual connotations, forming a unique Chinese “culture of ornaments”, which is also an artistic sublimation of Chinese national culture. Lotus pattern is one of the earliest traditional ornaments that emerged in China. Throughout its entire history, it turned into a visual symbol that represents commemoration and aesthetic value of the Chinese traditional culture, having a distinct shape and meaning. This article analyzes the peculiarities of localization of the Ancient Chinese lotus pattern, as well as the question of “folk aesthetics” as the major driving force for the consistent development of the means of creating such images. The author examines the main determinants of the Chinese philosophy of design, highlighting such key factors as the artistic consciousness of the Chinese people, “botanical principle” in visual art, aesthetic perception of symmetry and balance in the image, as well as the peculiarities of historical milestones in the development of Chinese floral ornament. The author summarizes the considered aspects with regards to integration of the traditional and modern design.
Luminescence measurement of band gap
Authors: Shi Kai-Ju , Li Rui , Li Chang-Fu , Wang Cheng-Xin , Xu Xian-Gang , Ji Zi-Wu ,   Institute of Novel Semiconductors, School of Microelectronics, Shandong University, Ji’nan 250100, China,   Shandong Inspur Huaguang Optoelectronics Co., Ltd., Weifang 261061, China
Published: January 2022

Optical band gap or band gap is an important characteristic parameter of semiconductor materials. In this study, several representative InGaN/GaN multiple quantum well structures are taken as the research objects, and the test conditions that need to be met for the luminescence measurement of the optical band gap of the InGaN well layer at a certain target temperature are discussed in depth. Since the InGaN well layer is a multi-element alloy and is subjected to stress from the GaN barrier layer, there exist not only impurity/defect-related non-radiation centers in the well layer, but also localized potential fluctuation induced by composition fluctuation and quantum confinement Stark effect (QCSE) induced by polarization field. Therefore, in order to obtain a more accurate optical band gap of the InGaN well layer, we propose the following test conditions that the luminescence measurement should meet at least, that is, the influence of the non-radiation centers, the localized centers and the QCSE on the emission process at the target temperature must be eliminated. Although these test conditions need to be further improved, it is expected that this test method can provide valuable guidance or ideas for measuring the semiconductor optical band gap.
Topological properties of non-isotropic two-dimensional SSH model
Authors: Guo Si-Jia , Li Yu-Zeng , Li Tian-Zi , Fan Xi-Ying , Qiu Chun-Yin ,   School of Physics and Technology, Wuhan University, Wuhan 430072, China
Published: January 2022

The one-dimensional (1D) Su-Schrieffer-Heeger (SSH) chain is a model that has been widely studied in the field of topological physics. The two-dimensional (2D) SSH model is a 2D extension of the 1D SSH chain and has many unique physical properties. It is a higher-order topological insulator (HOTI), in which corner states with bound states in the continuum (BIC) properties will arise between the second energy band and the third energy band. There are two different topological phases in the isotropic 2D SSH model, and a topological phase transition will happen when the intracell coupling strength is equal to the intercell coupling strength.

In this paper, we first break the isotropy of the isotropic 2D SSH model, defining the ratio of the x-directional coupling strength to the y-directional coupling strength as α and the ratio of the intercell coupling strength to the intracell coupling strength as β, which represent the strength of the topological property and anisotropy respectively. We use α and β to calibrate all possible models, classify them as three different types of phases, and draw their phase diagrams.Then we argue when the energy gap between the second energy band and the third energy band emerges over the entire Brillouin zone.

Meanwhile, we use a method to calculate the spatial distribution of polarization when the model is half-filled, and it is shown that there is 1/2 polarization localized at the edges in the direction with larger intracell coupling, but no edge polarization in the other direction. The edge polarization excites the edge dipole moment, giving rise to a topological edge state in the energy gap. At the same time, when the model has an entire open boundary, the dipole moment directs the charge to accumulate on the corners, which can be observed from the local charge density distribution. This type of fractional charge is a filling anomaly and formed spontaneously by the lattice to maintain electrical neutrality and rotational symmetry simultaneously. This fractional charge induces the aforementioned corner state. And by its nature of filling anomaly, this corner state is better localized and robust. It will not couple with the bulk state as long as the rotational symmetry or chirality of the model is not broken.

Finally, we construct an acoustic resonant cavity model: a rectangular shaped resonant cavity is used to simulate individual lattice points and the coupling strength between the lattice points is controlled by varying the diameter of the conduit between the resonant cavities. According to the Comsol calculation results, we can see that the topological properties of the anisotropic two-dimensional SSH model are well simulated by this model.