bluuebunny/crossref_metadata_2025 huggingface dataset:
Garlic in Traditional Indian Medicine (Ayurveda) for Health and Healing
Authors: Kumar Joshi Vinod , Joshi Apurva
Published: June 2021

Traditional Indian Medicine (TIM)- Ayurveda is a Sanskrit Language word, which signifies “true knowledge of life”. It is recognized as one of the oldest Traditional health care systems of the World by World Health Organization. In fact, it was a main stream health care system till the introduction of convention medicine in India. Plant, animal and mineral origin natural substances are used in Ayurveda for health and healing. Of them, Garlic is one of the plant origin substances. Garlic is known as Lasuna, which signifies, destroyer of diseases. The fresh plants of Garlic are used as edible food substance and also the dried cloves are on ripening to alleviate the disorders rationally in TIM. Garlic is recommended as physical strength promoting, intellect promoting and as aphrodisiac to maintain healthy state of life. Its properties like- unctuous, hot, pungent, heavy has been described to alleviates skin diseases, intra abdominal tumor, chronic rhinitis, hemicranias, epilepsy, fainting etc. Its continuous use causes internal hemorrhage. The medicated milk, medicated oil preparation are used orally as well topically. A number of pharmaceutical forms are seen in more than 3000 years old original scriptures of Ayurveda and also in later works as it was in use by successive generation in India. A comprehensive review on Garlic is highlighted here, including original references with scientific evidences.
High-Frequency Electromagnetic Interference Diagnostics
Authors: Zhang Ling , Feng Yuru , Fan Jun , Li Er-Ping
Published: June 2021

Electromagnetic interference (EMI) is becoming more troublesome in modern electronic systems due to the continuous increase of communication data rates. This chapter reviews some new methodologies for high-frequency EMI diagnostics in recent researches. Optical modules, as a typical type of gigahertz radiator, are studied in this chapter. First, the dominant radiation modules and EMI coupling paths in an explicit optical module are analyzed using simulation and measurement techniques. Correspondingly, practical mitigation approaches are proposed to suppress the radiation in real product applications. Moreover, an emission source microscopy (ESM) method, which can rapidly localize far-field radiators, is applied to diagnose multiple optical modules and identify the dominant sources. Finally, when numerous optical modules work simultaneously in a large network router, a formula based on statistical analysis can estimate the maximum far-field emission and the probability of passing electromagnetic compatibility (EMC) regulations. This chapter reviews a systematic procedure for EMI diagnostics at high frequencies, including EMI coupling path analysis and mitigation, emission source localization, and radiation estimation using statistical analysis.
Obstetric Markers as a Diagnostic Forensic Tool
Authors: Shetty Adithi , Suresh Kumar Shetty B.
Published: June 2021

The field of Forensic diagnostics is evolving very rapidly keeping in pace with the emerging technology in the various fields. Several biomarkers up to the molecular level have been discovered which aid in solving cases. Pregnancy diagnosis from traces of blood could aid in solving cases of finding a missing pregnant lady or illegal abortions. But the challenge posed could possibly be the minimal amount of blood obtained for diagnosis. Here comes in the role of RT PCR diagnosing mRNA which is pregnancy specific, i.e., for hPL and beta hCG. The additional advantage would be that a small quantity suffices. Even if the blood stain is dried and degraded, the detection rate is good. This could add weightage to the investigation as a vital clue or change the course of investigation. The other areas of application of obstetric biomarkers are sexual assault, maternal substance abuse and paternity testing.
Networking and Participatory Research Promoting Quality of Life and Well-Being in Portuguese-Speaking African Countries
Authors: Chitetele Soy Pinto Alister , Pinto de Moura Ana , Mário Miquitaio Augusto , Malomalo Bas’llele , Amaro da Costa Cristina , Queiroz Zuliani Daniela , Domingos da Costa Delfim , Cunha Beato Gabriel , Afonso da Graça Gaspar , C.F. Henriques Matias Imaculada , Sgarbi Santos Jaqueline , Pinto Caetano Leodinilde , Fernanda Galesi Pacheco Lilian , Abibo Buanango Maitu , Carvalho Miclay , Fernando Chimela Chume Pedro , Acosta Leyva Pedro , Silves Ferreira Vladmir , Rita Marques de Oliveira Maria
Published: June 2021

Spread across the planet each human being, individually or in community, aspires for well-being and quality of life, according to the ideal of each one. However, we all believe that there are always ways to live better. For many people the measurement of a better life translates into the guarantee of social rights, the right to basic services, good land, seed and sufficient nutritious food for their community members. The Mechanism to Facilitate the Participation of Universities in the Food and Nutrition Security Council of the Community of Portuguese Speaking Countries is a cooperative academic network fomented by the Community of Portuguese Speaking Countries (CPLP) with support from the Food and Agriculture Organization of the United Nations. This mechanism works with teaching, research and extension in the CPLP Food and Nutrition Security Strategy. The pillars of CPLP Strategy are the strengthening of the governance of public policies on Food and Nutrition Security at all levels of government, social protection based on guaranteeing access to food and family farming with a strategy to increase the availability of good quality food, promoting social and environmental sustainability. CPLP University Mechanism has provided training processes for technicians who work in public policies for Food and Nutrition Security and has contributed to the strengthening of postgraduate programs in Portuguese-speaking African countries. As consequence, it has favored participatory research and mixed methods as a theoretical methodological approach. Therefore, it seeks to focus on the territories of Food and Nutrition Security practices to transform reality, as recommended by CPLP Strategy, however, with the autonomous assumptions of the collaborative network. This chapter presents how local researchers perceive the results of a process of inducing an academic network to transform the local reality and promote Food and Nutrition Security in the context of the CPLP.
Selected Aspects of Sports: Recreational Activity of German School Students
Authors: Sawicki Zygmunt
Published: June 2021

This work focuses on empirical research regarding the sports-recreational activities of school students living in the Alpine region of Germany. The main objective of the work is to examine the conditions of participation in sports activities depending on such criteria as: forms, intensity, motives, manners, places and possibilities for practicing sports, including the gender of the participants and their environmental conditions (large city, small town). 387 persons at the age of 18 (M = 18.48 ± 0.31 years) from technical colleges and high schools in Bavaria were surveyed. The following research tools were used in the study: - a scale of attitudes aimed at examining the motives for undertaking sports-recreational activity by the examined school students, - a questionnaire regarding attitudes and behavior towards free time sports-recreational activity. The collected material was subjected to mathematical and statistical analysis using the ROC method (Receiver Operating Characteristic). Own research has shown a high level of sport-recreational activity related mainly to such aspects as the frequency of practicing sports, the number of sports disciplines practiced and different places for practicing sports.
Integrating Resilience in Time-based Dependency Analysis: A Large-Scale Case Study for Urban Critical Infrastructures
Authors: Rosato Vittorio , Di Pietro Antonio , Kotzanikolaou Panayiotis , Stergiopoulos George , Smedile Giulio
Published: June 2021

As critical systems shall withstand different types of perturbations affecting their functionalities and their service level, resilience is a very important requirement. Especially in an urban critical infrastructures where the occurrence of natural events may influence the state of other dependent infrastructures from various different sectors, the overall resilience of such infrastructures against large scale failures is even more important. When a perturbation occurs in a system, the quality (level) of the service provided by the affected system will be reduced and a recovery phase will be triggered to restore the system to its normal operation level. According to the implemented recovery controls, the restoration phase may follow a different growth model. This paper extends a previous time-based dependency risk analysis methodology by integrating and assessing the effect of recovery controls. The main goal is to dynamically assess the evolution of recovery over time, in order to identify how the expected recovery plans will eventually affect the overall risk of the critical paths. The proposed recovery-aware time-based dependency analysis methodology was integrated into the CIPCast Decision Support System that enables risk forecast due to natural events to identify vulnerable and disrupted assets (e.g., electric substations, telecommunication components) and measure the expected risk paths. Thus, CIPCast can be valuable to Critical Infrastructure Operators and other Emergency Managers involved in a crisis assessment to evaluate the effect of natural and anthropic threats affecting critical assets and plan proper countermeasures to reduce the overall risk of degradation of services. The proposed methodology is evaluated in a real scenario, which utilizes several infrastructures and Points of Interest of the city of Rome.
Virtual Interviewing for Residency/Fellowship during the COVID-19 Pandemic
Authors: Petrochko Jameson , Panting-Crespo Jeffrey , Smith Christopher , Minor Megan , Stankewicz Holly , McGinley Thomas , Harrison Meredith , Bendas Erin , P. Stawicki Stanislaw
Published: June 2021

Virtual interviewing for graduate medical education (GME) had been experimented with on a small scale in the late 2000s and early 2010s, but it became a necessity for the 2020–2021 match season as a result of the COVID-19 pandemic. We will briefly discuss the history of virtual interviewing and the published literature on virtual interviewing in GME. Based on the literature and recommendations from various organizations, we address preparation for virtual interviews including special considerations for programs and fellowships. We discuss the pros and cons of virtual interviewing both in order to better understand the current situation and to make informed choices moving forward regarding continuation of virtual interviewing versus returning to in-person interviewing.
Modulations in Oxidative Stress of Erythrocytes during Bacterial and Viral Infections
Authors: Rajashekaraiah Vani , Hsieh Carl , Pallavi Masannagari
Published: June 2021

Oxidative stress (OS) occurs when the generation of free radicals and reactive oxygen species (ROS) overwhelms the antioxidant capacity. OS causes storage lesions which can be defined as a series of biochemical and biomechanical changes. Erythrocytes are constantly exposed to OS due to the presence of ROS, which are countered by the endogenous antioxidant system. Various irreversible changes that occur include fragmentation and aggregation of proteins and lipids. The changes in proteins, lipids and antioxidant capacity are used as OS biomarkers to assess the efficacy of the erythrocytes, post oxidative insult. Aging of erythrocytes is also associated with the changes in its physical, biochemical and physiological properties and OS causes its rapid aging. Bacterial and viral infections also cause OS which alters the erythrocytes’ antioxidant capacity. These modulations in its microenvironment are both beneficial in terms of protection against invading microorganisms as well as harmful to the erythrocytes, causing damage to surrounding cells and tissues. Thus, OS biomarkers can be used to gain insights into the effects of bacterial and viral infections on the erythrocyte microenvironment.
Adsorption of Heavy Metals from Industrial Wastewater Using Nanoparticles from Agro Wastes
Authors: Taofeek Popoola Lekan , Shehu Grema Alhaji
Published: June 2021

Effluents from essential industries have been characterized with heavy metals which are non-biodegradable in nature and also detrimental to health when accumulated in body tissues over long exposure. Adsorption was proved as the best efficient process amongst others to remove these heavy metals from industrial wastewater due to its excellent features. Activated carbons from nanoparticles of agricultural wastes such as pods, shells, husks, peels, shafts and many prepared via calcination process at high temperature can be used as active adsorbent for the industrial wastewater treatment involving heavy metals removal. This chapter discusses heavy metals in industrial wastewater effluents and potential agro wastes from which nanoparticles of activated carbon for industrial wastewater purification could be generated. The transformation of agro wastes nanoparticles into activated carbons via calcination and their applications for heavy metals removal from industrial wastewater via adsorption were examined. Various characterization techniques to study the effects of calcination on structural, morphological and textural properties of activated carbon prepared from agro waste nanoparticles were also discussed. Various isotherm, kinetics, mechanistic and thermodynamics models to investigate the adsorptive nature of the process were presented. Error functions and algorithms for both the linear and non-linear isotherm models regression to affirm their fitness for prediction were presented. Lastly, proposed adsorption mechanisms of heavy metals removal from industrial wastewater using activated carbons from nanoparticles of agro wastes were presented.
The Reform in Government Expenditure and the Standard of Living in Bahrain
Authors: Alaali Fatema
Published: June 2021

The drop of oil prices since the second half of 2014 have affected the credit risk and liquidity situation in Bahrain. Therefore, Bahrain have implemented substantial economic diversification in the economic structure including manufacturing, refining, tourism, trade and finance. With the recognition of the importance of governments expenditure restructuring, Bahrain government introduced number of initiatives such as streamlining government expenditure, increasing revenues, and redirecting government subsidies towards eligible citizens. Understanding the relationship between revenues, government spending and economic growth is an essential perception in evaluating the efficiency of government’s strategy in managing its resources and the impact on the standard of living in any country. This chapter examines the relationship between total government expenditure as well as sectoral government spending (specifically education and health sectors), oil revenues and the economic growth of Bahrain using time series data over the period 1989–2015. To achieve this aim, the vector error correction model (VECM) is employed. In order to ensure the sustainability of resources and maintain economic growth, Bahrain should continue managing its expenditure, by cutting down expenses on certain sectors through privatization, and increasing spending on health and education sectors.
Special Cases in Cataract Surgery
Authors: Deng Minghui , Chen Song , Wang Xiaogang
Published: June 2021

During phacoemulsification for cataracts, the surgeon may encounter various challenges and should therefore be trained to handle them. This chapter will share an example of clinical cases encountered by the author in clinical practice, which mainly includes the successful implantation of a trifocal intraocular lens in the capsular bag after posterior capsular tear during posterior polar cataract surgery as well as cataract surgery design after corneal refractive surgery, shrinkage, and treatment of capsular opening in patients with retinitis pigmentosa after cataract surgery to provide a reference for clinicians.
Nitrogen in Flowers
Authors: Ruamrungsri Soraya , Panjama Kanokwan , Ohyama Takuji , Inkham Chaiartid
Published: June 2021

This chapter explores the literature and research on nitrogen in flowers. An overview of nitrogen deficiency symptoms in some flowers, i.e., Curcuma alismatifolia (ornamental curcuma), Tagetes erecta (marigold), Zinnia violacea (zinnia), and Gomphrena globose (gomphrena) were presented. Additionally, nitrogen uptake, translocation, and application in some flowers, i.e., ornamental curcuma, narcissus, orchids, and rose, were discussed in this chapter. Nitrogen affects the life cycle of flower, including vegetative and reproductive phases. Flower size, stem length, number of flowers per plant, and color were reduced by nitrogen deficiency. Therefore, the optimum level of nitrogen supply in each growth stage is important for flower crop production.
The Role of AI in Cervical Cancer Screening
Authors: Turic Bojana , Sun Xiaorong , Wang Jian , Pang Baochang
Published: June 2021

In the last few years internet-based technologies played an important role in reinventing various medical procedures and facilitating quick access to medical services and care, particularly in the remote areas of China. The use of artificial intelligence and cloud computing in clinical laboratory setting for slide analysis contributed to standardized cytology and pathology diagnosis but more importantly slide analysis with artificial intelligence has a huge potential to compensate for a country wide lack of pathologists and systematic quality control. While well-established automated slide scanning is already in use, we added intelligent algorithms located in a secure cloud for the better slide readings, and mobile phone microscopes to capture those regions of Hubei province where laboratory infrastructure is supported by high-speed internet and 5G networks. These technological advances allowed us to bring an important pathology expertise across the large areas of China.
The Many Faces of Negative Symptoms in Schizophrenia
Authors: Fadgyas Stanculete Mihaela , Capatina Octavia
Published: June 2021

Negative symptoms are relatively frequent across schizophrenia spectrum disorders diagnostic categories and they represent deficits in different domains such as emotional, volitional and experiential. Even though negative symptoms have long been recognized as a core feature of schizophrenia, their definition has been changing over time. Different conceptualization classified this category of symptoms as primary or secondary, persistent or transient. At the current moment there are five agreed upon domains of the concept of negative symptoms, which are separated into two dimensions—experience (anhedonia, avolition, asociality) and expression (blunted affect, alogia). Multiple mechanistic pathways have been proposed and investigated for each dimension and for each domain. The current chapter attempts to address recent advances in the literature regarding the concepts, definitions and classifications of negative symptoms and their etiological model.
Monsters in the dark: systematics and biogeography of the stygobitic genus Godzillius (Crustacea: Remipedia) from the Lucayan Archipelago
Authors: Ballou Lauren , Iliffe Thomas M. , Kakuk Brian , Gonzalez Brett C. , Osborn Karen J. , Worsaae Katrine , Meland Kenneth , Broad Kenneth , Bracken-Grissom Heather , Olesen Jørgen
Published: June 2021

Remipedia is a stygobitic group commonly associated with coastal anchialine caves. This class consists of 12 genera, ten of which are found within the Lucayan Archipelago. Herein, we describe a new species within the genus Godzillius from Conch Sound Blue Hole, North Andros Island, Bahamas. Godzillius louriei sp. nov. is the third known remipede observed from a subseafloor marine cave, and the first from the Godzilliidae. Remipedes dwell within notoriously difficult to access cave habitats and thus integrative and comprehensive systematic studies at family or genus level are often absent in the literature. In this study, all species of Godzillius are compared using morphological and molecular approaches. Specifically, the feeding appendages of G. louriei sp. nov., G. fuchsi Gonzalez, Singpiel & Schlagner, 2013 and G. robustus Schram, Yager & Emerson, 1986 were examined using scanning electron microscopy (SEM). Species of Godzillius are identified based on the spines of maxilla 1 segment 4 and by the denticles on the lacinia mobilis of the left mandible. A molecular phylogeny using the mitochondrial 16S rRNA and nuclear histone 3 genes recovered G. louriei sp. nov. within the Godzillius clade and 16S genetic distances revealed a 13–15% difference between species of Godzillius.
Situações-problema mediadoras de articulações CTS no Ensino de Ciências
Authors: Santana Elisangela Barreto , Valente José Alexandre Da Silva , Freitas Nadia Magalhães da Silva
Published: June 2021

In the present work, we focus on evaluating the potential use of problem situations as a didactic and pedagogical strategy to the insertion of the STS approach in the context of the final years of elementary school. It is an action research, developed during a continuous formation of science teachers, in the format of a study collective. Together with the teachers, we developed four projects with students from sixth to ninth grade, totaling over 1500 students. We resorted to discursive textual analysis for the apprehension of pertinent aspects to the STS approach, which allowed us to realize that the proposal proved to be subject to discussions and articulations about science, technology and/or society; favored the process of appropriation of scientific knowledge, ie, it provided scientific literacy and led to awareness and/or decision making, that is, provided the exercise of citizenship.
Estrategias de comunicación para la divulgación de la I+D+i
Authors: Rodriguez Eva , Estellés María Teresa , Ortiz Javier , Mateu Anna , Pérez Beatriz
Published: June 2021

Este e-book es el fruto de una serie de talleres centrados en la promoción de la innovación realizados gracias a la iniciativa, el impulso y la dirección de la Fundació Parc Cientific Universitat de València (FPCUV). El conjunto de estas actividades se enmarca en el programa COMUNICA-INNOVA[ción] 2020, promovido por la FPCUV y financiado por la Conselleria d’Innovació, Universitats, Ciència i Societat Digital de la Generalitat Valenciana. Este programa persigue un doble objetivo. Por una parte, el establecimiento de una comunicación directa del personal investigador y emprendedor del Parc Científic con profesionales de la información, especialmente científica y económica; y, por otra, la adquisición por parte de los participantes en el taller de aquellas destrezas comunicativas relevantes para una difusión eficaz de su I+D+i. Todos los talleres se plantearon como muy prácticos y, por ello, se estableció un máximo de 20 participantes con el propósito de favorecer el diálogo con los ponentes
Landmarked buildings in the urban environment and Khabarovsk’s experience of their preservation
Authors: Baklyskii Pavel Vladimirovich , Baklyskaia Larisa Evgen'evna
Published: June 2021

The subject of this research is the problem of preservation of historical heritage aggravated to rapid urbanization, which is characteristic to many developing cities. Special attention is given to the existing trends of total destruction of historical and cultural monuments in the conditions of dense urban fabric. The relevance is defined by the dynamically increasing process of degradation, and at times, full destruction of environmental objects that are listed as state protected. The theoretical framework of this research is comprised of the system-environmental approach, which views the urban environment surrounding the landmarked object as a system that is in direct interaction with it. The novelty consists in practical application of theoretical provisions of the system-environmental approach to the specific conditions of Khabarovsk. Having explored over two dozen of landmarked buildings of the city, the authors reveal the contradiction between legislation intended for legal regulation of the protection and use of architectural heritage and the actual city practice of exploitation of historical buildings by the new owners of the landmarks. The study was conducted in cooperation and on behalf of Khabarovsk Regional Center for the Protection of Historical and Cultural Monuments. The results are used in practical activity of the center and in development of its strategic goals.
The use of parametric methods for delineating the morphology of urban fabric on the example of Vasileostrovsky District of Saint Petersburg
Authors: Lymar Varvara , Karpov Alexander , Krasnova Olga
Published: June 2021

This article provides the results of continuous zoning of Vasileostrovsky District of Saint Petersburg using the methods that are based on the systems of interconnected quantitative parameters, such as floor area ratio and building density coefficient. These include Spacmatrix (description of building density) and MXI (functional classification). The aforementioned methods are convenient for determination of the morphological types of buildings and differentiation of the zones of implementation of various urban planning policies; however, in Russia they are not widespread, and are used mainly for selecting the alternatives of urban planning solutions for a separate land plot or block. The continuous zoning patterns for the large diversified urban development are published for the first time. Comparison of the acquired patterns with the results obtained using historical and genetic analysis of the morphological development sites, as well as with the functional zoning of the draft Master Plan of Saint Petersburg from 2021 through 2048 demonstrated that the parametric methods allow a more accurate delineation of boundaries of morphological districts and describe the morphotypes of development. The article discusses the factors of the detected discrepancies and the limitations of methods used in creation of planning documents; as well as the requirements for the quality of the base data, sequence of implementation of Spacmatrix and MXI methods, and their alignment with the traditional methods for determination of the morphological types of development.
The peculiarities of urban planning in the Iraqi cities Al-Kūt, Amarah and Najaf
Authors: Аль Савафи Мохаммед Хасан
Published: June 2021

This article follows the stages of urban planning in the Iraqi cities Al-Kūt, Amarah and Najaf. These large cities have emerged as populated localities in different historical periods. This has played a certain role in formation of the urban landscape. The author determines the stages of urban development of these cities. Depending on the period of establishment of the populated locality, the author distinguished from six (Najaf) to three (Al-Kūt and Amarah) stages of formation of the functional planning structure. The historical periods of Iraq impacted the formation of urban planning periodization and models of the ongoing urban processes. The article reviews the models of urban processes proposed by Western scholars, and their influence upon the formation of new characteristics of Iraqi urbanism in the modern landscape of the listed cities. The Iraqi cities have certain similarity in functional planning structure; however, each city has own peculiarities that define its uniqueness. The uniqueness of cities is determined by a number of characteristics: the hierarchy of urban structure, architectural image of the city, social harmony through the organization of residential environment, transport and pedestrian accessibility, recreation and tourism sites, human resources, and level of environmental pollution. As a result  of studying Al-Kūt, Amarah and Najaf, it is revealed that Najaf plays a special religious role among Shiite Muslims; it also features archaeological sites attractive for tourists, such as the ancient mosques and churches. Al-Kūt and Amarah also have a rich history, although they have emerged in a later period. Urbanization of Iraq is particularly specific with regards to residential developments in the new urban districts. It manifests in the construction of residential areas by the type of professional activity (for example, a district for teachers, workers, police, etc.)
The study and concept of technology (a perspective from methodology and culturology)
Authors: Rozin Vadim Markovich
Published: June 2021

  This article raises the question about the nature of technology, namely whether there is universal technology that evolves and develops in culture, or there are different technologies that are interrelated in genesis. The author examines the pros and cons, as well as other problems, the solution of which sheds light on the nature of technology. The conclusion is made that the invariant characteristics of technology (technology as an artifact; synergy of natural effects and human activity; social body of a person; conceptualization; factors of sociality) do not represent the ontology of technology, but rather the methodology. In order to solve the dilemma, the author analyzed the two current states of technology ‒ engineering and technology. Technology is defines as an activity on creating technical products and as a technical environment that is essential for human life. It is claimed that the technology is a result of the activity turn and turn, which was later associated with management, including research and rational restructuring of the activity by specialists trained for solving such tasks. Ultimately, the author inclines towards the thesis of multiple technologies. The article discussses the Internet as a new type of technology.  
The history of development of Chinese oil painting in the period from 1900 to 1949
Authors: цао тиншу
Published: June 2021

After the defeat in the Opium War of 1840, the Chinese Qing Government realized the advanced nature of Western technologies and culture and proceeded with comprehensive examination of the Western experience. The study of the Western painting by the Chinese artists became an important part of this process. The period from 1900 to 1949 was a pivotal stage in the history of development of the Chinese painting associated with the advent of the Chinese oil painting. This article analyzes the development trends in Chinese painting by means of comparison the corresponding historical documents that resemble the five cultural phenomena emerged in this period; as well as generalizes the stages of studying the Western painting in China during this historical period. The author also analyzes the contribution and impact of the Chinese students upon the development of Chinese oil painting, changes in the painting styles, as well as integration of the Chinese artistic experience in the Western oil painting. The peculiarities of the major associations of Chinese artists of this period are reviewed. The development trends of Chinese oil painting include five aspects. The study of Western painting in China was not an approval of the Western oil painting tradition, but rather a way to improve the outdated Chinese tradition as well as build up its international status. This is precisely why the Chinese government set an implicit goal to popularize the Western art of painting in China. The political reforms that took place in China of that time were an important factor, which contributed to cultural changes. The development of painting became one of the key factors in the development of Chinese culture and art.
Political science of law within the system of legal research (articulation of the problem)
Authors: Kuzmin Igor Aleksandrovich
Published: June 2021

Theoretical and empirical data indicate that along with the philosophy and sociology of law, it is necessary to acknowledge the value and applicability of toolset of the political science of law. It is substantiated that determination of the scientific status of political science of law as an element of general theoretical science of law or an independent science at the initial stage of “testing” its methodological perspectives is not an end in itself. Based on the analysis of sociopolitical practice, national and foreign conceptual ideas, as well as provisions of the effective legislation of the Russian Federation and specifics of its application, the author concludes on the infiltration of politics into the structure of state-legal reality on a deeper level. For increasing the accuracy of the acquired results, the author employs dialectical approach and main logical methods (analysis, synthesis, deduction, extrapolation, etc.), as well as referred to the basic general theoretical principles of jurisprudence, considering the peculiarities of political science knowledge. The author also expresses his opinion on the need for further research in the area of application of political science of law, as well as the prospects and desirable results of its implementation in legal research.
Mathematical model and algorithm for solving the problem of planning the operation of multiphase systems with heterogeneous resources and time limits
Authors: Selishchev Ivan Alekseevich , Oleinikova Svetlana Aleksandrovna
Published: June 2021

The object of this research is the modern service and production systems, the specific functioning of which lies in a set of sequential and parallel operations with a random duration. A fundamental peculiarity of such systems is the stochastic nature of the duration of a single operation, which depends not only on the external random factors, but also on the choice of resources, and namely on the operator. This substantiates the parallel solution of the task on making a schedule of mutually dependent operations and the task on assigning the operators. In the conditions of resource and time limits, this task is NP difficult and requires the development of algorithms for developing the solution that is close to optimal in the limited time. For the development of mathematical and algorithmic software to solve this task, the author used the critical path method and PERT method, incident wave method, and methods for solving the assignment tasks. As a result, the author acquired a mathematical model that considers the stochastic nature of the duration of a single operation, which depends not only on random factors, but also on the operators. Based on such model, is formulated the optimization task that allows finding the launch time and the corresponding operators to gain the most profit. Based on the analysis of existing approaches and the specificity of the task at hand, the author proposes the algorithm for solving the task founded on successive refinement of the time characteristics of operations.
The images of foreigners in I. S. Shmelyov’s stories of the earlier period in the context of the theme of childhood
Authors: Skoropadskaya Anna Aleksandrovna
Published: June 2021

The subject of this research is the images of foreigners in I. S. Shmelyov’s stories of the earlier period “On the Seashore” and "Hassan and His Jeddi". The stories mark a neo-realistic period in the writer’s creative path, oriented towards depicting the social and everyday realities contemporary to the writer. The goal of this article lies in classification of the characters in the context of the theme of childhood. The belonging of the Turk Hassan and the Greek Dimitraki to a different ethnic and confessional culture, on the one hand allows conducting stylistic experiments to create a speech portrait of the Russian-speaking foreigner, while on the other hand figuratively indicates the diversity and unity of the universe. The novelty of this research consists in referring to the previously undeciphered and unpublished draft materials of the stories. The relevance of the selected topic is substantiated by the need for a more in-depth analysis of I. S. Shmelyov’s works of the earlier period, as namely them lay the foundation for the artistic philosophy and development of his writing style. Based on the comparative method and textual analysis, the article reveals the similar features of the foreign characters, which testifies to the fact that Shmelyov sought for the particular traits. The connection of foreign characters with the world of childhood (blood relationship or spiritual closeness with the child-character, retained childishness of perception of the world) resembles in their images the features of the chactachers of a righteous man and mentor, which were most fully described in Shmelyov’s works of the mature period.
Modern Orthodox sermon: categorical-textual aspect
Authors: Itskovich Tatiana Viktorovna
Published: June 2021

Examination of functionality of the genres of religious functional style is a relevant direction of modern linguistic research, which is substantiated by the change of social situation in Russia at the turn of the XX – XXI centuries, and thus, the growing role of religion as a form of public consciousness and a type of human activity. Sermon is a genre that functions in the Russian language, which makes it understandable and influential. The author applies the categorical-textual method, which gives an objective perspective and determines the characterological features of the genre, perceived as a type of similar texts with a standard way of explicating text categories; it also allows identifying the signs of invariant and outlining the transformative trends in the genre of sermon, substantiated by the new communication channels. The sermons delivered during liturgy belong to the core of the genre and feature predominant reverent tone, thematic duality: mandatory spiritual theme, with explication of situational and sacred themes, and reduced explication of profane theme; classical compositional structure, where the main theme is accompanied by spiritual interpretation, comprising a compositional complex, while the situational theme serves for creation of a circular plot. Sermons delivered outside liturgy are attributed to the mediated distant communication, which employs modern media channels: television or Internet, which substantiated a way of explication of textual categories that differs from the invariant. Non-liturgical sermons are classified as periphery of the genre and characterized by prevalence of the preaching, and at times aggressive tone, implementation of profane theme in the text, and reduced role of sacred and spiritual themes. Compositionally, non-liturgical sermons are noted for optional introduction and conclusion, with situational theme, which is explained by usage of modern communication channels. The categorical-textual method allows observing the transformation of the genre of sermon from the core towards the periphery.
Geo-acoustic inversion using polynomial chaos expansion
Authors: Li Feng-Hua , Wang Han-Zhuo ,   State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China,   School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
Published: June 2021

In order to improve the computational efficiency of algorithms while exploring the method to overcome the ambiguity problems in underwater geo-acoustic inversion, we use the data of transmission losses at the broadband sound frequencies and multiple propagating distances with the matrix of polynomial chaos expansion coefficients of transmission losses to invert the speed (c), attenuation (α) of compression sound wave and the density ratio of seabed to seawater (ρ) in their prior searching intervals. When approximating the transmission loss with the polynomial chaos expansion, the expansion coefficients are the functions of parameters including sound frequency, source and hydrophone’s position while the polynomial bases are functions of the above geo-acoustic parameters which are uniformly distributed in their respective intervals. The expansion coefficients are calculated by embedding the orthogonal polynomial bases into the acoustic wide-angle parabolic equation model. After that, the coefficients are deduced using the Galerkin projection and least angel regression. Under the situations of low sound frequency, short or medium sound propagation distance and short or medium length of intervals of geo-acoustic parameters, the polynomial chaos expansion can approximate the transmission losses accurately with the relatively error less than 1%. In the simulation case, with the high signal to noise ratio and the low errors of relative distances between source and receivers, the geo-acoustic parameters can be inverted accurately when the appropriate truncated powers are chosen. And the time cost is reduced by at least an order of magnitude compared with that of traversal grids searching procedure.
Reconfigurable linear polarization conversion based on spatial-order kirigami metasurfaces
Authors: Wang Ming-Zhao , Wang Shao-Jie , Xu He-Xiu ,   Air and Missile Defense College, Air Force Engineering University, Xi’an 710051, China
Published: June 2021

With the development of intelligent technology, it is essential to develop polarization-conversion devices with adaptable electromagnetic (EM) performance for practical applications. Up to now, most of attempts have relied on PIN diodes and varactor diodes for electrical tuning, typically featuring simplicity and timelineness. However, the shortcomings are also notable, such as less degrees of freedom (DoFs), more complex circuits and more expensive. In view of this, here we propose a kind of spatial-order metasurface for reconfigurable polarization conversion based on kirigami concept. By adjusting the folding angle β, the interaction between neighboring dipoles can be progressively changed and thus the operation frequency of polarization conversion can be shifted. Such a mechanical reconfigurable strategy brings about more DoFs for tuning and is cheaper and extraordinary convenient in practice. To verify the feasibility of our concept, a proof-of-concept spatial-order kirigami metasurface is proposed for the dual-band reconfigurable linear polarization conversion based on asymmetric chiral split ring resonators (SRRs). Experimental results show that the linear polarization operates at 5 and 5.8 GHz when folding angle is β = 10°, these frequencies are shifted to 5.8 and 7.2 GHz when β = 45°: a tuning range is expanded by 18.5%. In addition, the Poisson’s ratio and relative density of proposed kirigami metasurface as a function of β are also theoretically analyzed. The results show that the Poisson’s ratio increases with the value of β increasing. The relative density can be reduced to 1.5% of its unfolded planar counterpart. Our spatial-order kirigami metasurface strategy paves the way for implementing the reconfigurable linear polarization conversion and multifunctional devices.
Magnetic field sensing performance of centimeter-scale resonator with optimized structure
Authors: Yu Chang-Qiu , Ma Shi-Chang , Chen Zhi-Yuan , Xiang Chen-Chen , Li Hai , Zhou Tie-Jun ,   Information Engineering School, Hangzhou Dianzi University, Hangzhou 310018, China
Published: June 2021

Applications of magnetometers are affected mainly by their sensitivities and detection bandwidths. Till now, the applications of the centimeter-scale optomechanical magnetometer have been still limited by those two factors. In order to improve its sensing performance in a low frequency regime of the alternating current (AC) magnetic field sensor based on centimeter-scale whispering gallery mode resonator, we design a new centimeter-scale crystalline whispering gallery mode resonator which has different relative distributions of the magnetostrictive material (Terfenol-D) and the optical material (CaF2) from the unoptimized centimeter-scale whispering gallery mode resonator. Experimental results show that this new resonator is able to detect the AC magnetic field ranging from 6 Hz to 1 MHz, and a peak sensitivity of 530 pT·Hz–1/2 at 123.8 kHz is achieved without DC bias field in a magnetically unshielded non-cryogenic environment. On condition that the optical quality factor is at the same level of 108 and there is no DC bias magnetic field, the best sensitivity of the optimized resonator is 11 times higher than that of the unoptimized resonator, and the corresponding detection frequency band is expanded by 1.67 times, switching from the frequency band of 10 Hz–600 kHz to 6 Hz–1 MHz. Besides, the device only needs 100 μW light intensity to operate, which offers us a low optical power consumption magnetometer. Within the detection frequency band, the proposed magnetometer can detect both a single frequency alternating magnetic field signal and an alternating magnetic field signal covering a certain frequency range. It can detect 50 or 60 Hz alternating magnetic field signal generated by current in the wire so that the working status of the power system can be monitored. If the sensing performance is further improved, it may be able to detect the magnetic field signal at frequency in a range of 1 kHz–10 MHz generated by the partial discharge current and the extremely low frequency human body magnetic field signal located in a frequency band of [10 mHz–1 kHz]. Further improvement in sensing performance is possible through optimizing the system noise and the magnetic field response capability of the device, which might allow the device to possess the applications in the fields of power system fault monitoring and medical diagnosis.