Concept Of Frontier Research Articles

On Micro Pre Operators in Micro Topological Spaces

The basic objective of this research work is to introduce and investigate the properties of micro pre-frontier, micro pre-exterior, micro pre-border, micro pre-kernel using the concept of frontier, exterior, border and kernel.

Comparative Analysis on the Application of Markowitz Model and Index Model in Portfolios

This article presents a comparison between the Markowitz model and the index model, focusing on their applications in portfolio management. The Markowitz model, also known as the mean-variance model, revolutionized portfolio theory by introducing a quantitative method for balancing risk and return. This model constructs optimal portfolios that maximize expected return for a given level of risk or minimize risk for a given expected return, using a covariance matrix to assess relationships between asset returns. In contrast, index models popularized by William Sharpe offer a simplified approach focused on the relationship between individual asset returns and a common benchmark (usually a market portfolio). The article explores the theoretical foundations of the two models, highlighting their mathematical formulations and assumptions. It also discusses the computational methodologies involved in implementing these models and examines the challenges and advances in optimization techniques. It evaluates how these technological innovations have enhanced portfolio optimization, enabling the handling of larger datasets and more complex market dynamics. In addition to comparing these two models, the article delves deeper into the concepts of efficient frontier, inefficient frontier and minimum variance frontier. The efficient frontier is the portfolios that offer the highest expected return for target risk, while the inefficient frontier includes portfolios that do not offer the best return for the level of risk. Minimum variance frontier focuses on portfolios that minimize risk for target expected return, emphasizing the importance of risk management in investment decisions.

The Construction of Localized Teaching Model of Orff Music Teaching Method Based on Big Data Analysis

This paper discusses how Orff's music education system is combined with the localized teaching mode under the background of globalization, especially with the support of big data analysis to realize the innovation of music education. Orff's music education has attracted worldwide attention for its openness, diversity and innovation. In China, its localization practice aims to balance the international educational concept with the local cultural needs. The innovations of this paper are as follows: firstly, the big data analysis technology is integrated into the localized teaching mode, and the new mode of music teaching is analyzed; Secondly, advocate students' active participation, get rid of the shackles of traditional teaching and make music learning lively and interesting; Thirdly, from a new discipline perspective, combined with the frontier concept of national music education, this paper interprets Orff's localization theory and practice in order to push Orff's music education in China out of the dependent development mode.

Migration of Udmurts from the Udmurt Autonomous Soviet Socialist Republic to Kazakhstan in the 1960s

The article is devoted to the migration of Udmurts from the Udmurt Autonomous Soviet Socialist Republic to the Kazakh SSR in the 1960s. from the perspective of the frontier concept. The Udmurts are one of the Finno-Ugric peoples, who are also quite large. For a long time, the Udmurts lived relatively compactly, located mainly on the territory of several subjects. The largest part was in Udmurtia, where even in 1959 76.2% of all Udmurts of the Union lived. However, already in 1970 the share had dropped to 68.7%, which was undoubtedly caused by migration. One of the main flows of migrants went to the Kazakh SSR, where virgin lands were actively being developed during this period. In just one intercensus period (from 1959 to 1970), the number of Udmurts in Kazakhstan increased fourfold. Obviously, such an increase in such a short time was ensured by migration. The purpose of the study is to consider the migration of Udmurts from the Udmurt Autonomous Soviet Socialist Republic to Kazakhstan in the 1960s. The sources of the research were mainly statistical materials: population censuses and current accounting materials. Since 1960, mechanical movement materials began to be compiled also for rural areas, which makes it possible to obtain and use more complete information about migrations. Office documentation was also used.

Naming the abyss: The symbolic politics of the oceanic toponymic frontier

AbstractWith the recent, constantly growing interest in the critical geography of the oceans and critical toponymy, there is still plenty of space for theoretical, methodological and practical interconnections between these emerging subfields. Despite some sporadic examples of critical analysis of the names of the islands and seas, the ocean floor and the open ocean remain unexplored spaces in critical toponymic investigations. This paper aims to fill this gap by introducing the concept of the toponymic frontier, focusing on the spatial‐political dimension of the names of the natural submarine features (bathyonyms). Drawing on critical toponymy and critical geography of the oceans' theoretical literature and using the empirical database of more than 5000 bathyonyms and the secondary resources represented by the international media, official reports and governmental websites, this paper develops a base for a conceptual framework for analysing the marine place names as (geo)politically and political‐economically motivated symbolic elements of the oceanic voluminous realm. Finally, the paper paves the way for future debates related to the politics of place naming in the contested spaces of the hydrosphere and the generation of reinvigorated productive insights in critical toponymic studies.

Print No Border

As borders gradually open up once again, the consequences of the first two years of the COVID-19 pandemic are casting light on the renewed importance of regional and national borders. This is also true of European national borders – which had already been tested by the intensification of migratory flows and populist impulses – now in the process of becoming unwilling symbols of the restrictions ushered in by the pandemic. Closed for months, or at the very least made difficult to get through by health-related restrictions, the internal EU national borders that European peoples were coming to think of as a thing of the past were, quite suddenly, extremely concrete once again. This is a process that has been brought even more dramatically to the fore by the tragedy of the war in Ukraine. From the starting point of these premises, the Print no border project explored the border and frontier concepts via xylographic practice, juxtaposing, stratifying, and comparing the geographical representation of boundaries with images borrowed from nature and the man-made elements that boundaries cut through.

Cowboy professionalism: a cultural study of big-mountain tourism in the last frontier

ABSTRACT Geographical features and cultural traits influence the character of big-mountain tourism in Alaska. This research considers the intersectionality of wilderness and frontier concepts on tourism culture, examines guides’ and clients’ motivations for participation, and relates these influences to the larger phenomena of tourism generally and nature tourism specifically. The findings show that Alaska’s big-mountain tourism is globalized in its political and economic scope. Guides imagine themselves as pioneers on a last frontier of mountain pursuits, notions that relate well to images depicted of the region in literature and promoted by the tourism industry. Clients, on the other hand, come to Alaska because of its exceptional geography and unique mountain sporting culture, but are not as enamored with the mythos of the frontier.

Application of Big Data Technology in the Study of “UGS” Collaborative Training Mechanism for Musicology Majors in Colleges and Universities in the Context of Professional Accreditation

Abstract The traditional education model gradually reveals the corresponding problems and deficiencies in the face of the update of the concept of education frontier and the change of talent cultivation mode. In this paper, we first sorted out the relevant features of the big data and data mining process, mined out the specific needs and realistic development dilemmas of musicology professional certification, and explored the appropriate mechanisms and strategies of UGS collaborative education and training. Using big data Hadoop technology as the infrastructure, a platform for music discipline services is designed to support interoperability and sharing of music education resources among universities, governments, and primary and secondary schools. Specifically, semantic similarity calculation is performed with music resource domain ontology to improve the intelligent retrieval ability, and the recommendation method of user dynamic preference is introduced to provide more accurate music teaching resources for platform users. The effect of cultivating musicology majors in colleges and universities is analyzed in terms of emotional attitudes, knowledge, and skills through the collaborative cultivation mechanism. The accuracy of the semantic similarity intelligent search method based on domain ontology is above 50%, and the mean value of students’ satisfaction with the intelligently recommended music learning resources is 4.3 points. 83.42% of the teaching carried out based on the subject service platform indicated that it met their learning needs, and the overall performance of the students who carried out the platform teaching was 16 points higher than that of the traditional classes. By using big data technology, the UGS collaborative cultivation mechanism can be utilized as a tool to enhance the quality of talent cultivation for musicology majors.

A parallel data envelopment analysis and Malmquist productivity index model of virtual frontier for evaluating scientific and technological innovation efficiency at universities

As an important component of the national innovation system, universities have received widespread attention in recent years regarding their Scientific and Technological Innovation (STI) efficiency. This study considers a new perspective for viewing talent cultivation, scientific research, and social service as parallel subprocesses for universities to perform their functions. We also combine the concept of virtual frontiers to calculate the STI efficiency at universities, avoiding the situation where multiple Decision-making Units (DMUs) cannot distinguish their rankings due to their effectiveness. In addition, we use the virtual frontier method to calculate the Malmquist Productivity Index (MPI), which avoids the inability of DMU to distinguish the Technical Efficiency Change (TEC) due to continuous period effectiveness. Through empirical analysis, we show (1) Although there are significant differences in STI efficiency among universities, it has gradually increased overall, rising from 0.1623 in 2014 to 0.2433 in 2018; (2) The overall MPI of universities is not particularly ideal, with two periods having an MPI less than 1, and only 14 universities having an average MPI exceeding 1 in four periods; (3) The overall average value for TEC is 1.1342, with only one university having a mean value below 1. On the other hand, the overall average for Frontier Shift (FS) is 0.8775, and all universities have FS values below 1. Finally, based on the research results, several practical suggestions are provided.

Can China's carbon intensity constraint policies improve carbon emission performance? Evidence from regional carbon emissions

Carbon Intensity Constraint Policies (CICPs) are vital for addressing climate change challenges and advancing sustainable development. Since 2010, China has rolled out three five-year CICPs. However, there is limited understanding of their impact on carbon emission performance (CEP). Addressing this, this study pioneers the exploration of the CICP's impact on China's CEP. Drawing from government intervention and green paradox theories, this study highlights a concerning scenario: local governments achieve emission targets via excessive intervention. For deeper insights, this study melds the overall technology frontier concept with a non-radial, non-angle directional distance function, introducing a novel efficiency model rooted in the Data Envelopment Analysis (DEA) method. This offers a CEP measure across 30 Chinese provincial regions from 2002 to 2019. Using the quasi-difference-in-differences (quasi-DID) and moderated mediation models, this study ascertains the presence of the green paradox, uncovers its reasons, and suggests mitigation strategies. The results indicate that high government intervention diminishes CEP. This negative effect intensifies under greater regional fiscal pressure. Alarmingly, local authorities' eagerness to meet targets shows a counterproductive, inverted N-shaped trend regarding CICPs' time-based influence on regional CEP. Moreover, the impact varies based on regional economic development levels and stages. This study has ensured the robustness of the findings via parallel trend tests, parallel exclusion policies, a strengthened quasi-DID framework, and diverse control variable configurations. This study underscores the need for more balanced government intervention. It offers valuable policy insights, guiding China's upcoming CICP phase to realize the ambition of peaking carbon by 2030 and achieving carbon neutrality by 2060.

Фронтирность горных сообществ Северного Кавказа и проблемы развития туризма: вызовы и риски

The article analyzes the concept of frontier in relation to mountain communities, considers the attitude of local citizens to the development of tourism in the territory of their residence, in this context the reasoning about “risk societies” is given. As part of the present study, the concept of frontier is interpreted primarily as a natural boundary between mountainous and plain territories, which causes the emergence of certain value systems in them and creates symbolic discourses between different parts of the same entity. It is emphasized that in the Alaniya National Park it is necessary to plan, first of all, the development of ecotourism. However, this process is hampered by a number of problems, including: the lack of economic incentives for the industry development; the acute shortage of qualified specialists in the field of ecological tourism; insufficient infrastructure necessary for its development; seizure of land for individual construction, which leads to a violation of the ecological and socio-cultural balance in these areas. The necessity of taking into account these factors in the development of tourism development programs in the region is emphasized.

Provincial energy and environmental efficiency analysis of Chinese transportation industry with the fixed-sum carbon emission constraint

Measuring energy and environmental performance has become a significant public concern, owing to increasingly severe environmental pressures. The transportation industry plays an essential role in modern economic and social development and has caused many environmental problems due to its huge energy consumption and carbon emissions. This study examined the provincial energy and environmental efficiency (EEE) of the transportation industry in China, considering a newly announced dual-carbon policy target with a total fixed-sum (FS) constraint on carbon emissions. The transportation industry is modeled as a parallel production system with passenger transportation and freight transportation. Because both subsystems would inevitably generate carbon dioxides, a parallel transportation system is innovatively considered with a FS constraint of shared carbon emissions under the dual-carbon policy target. This study contributes to the literature by measuring the EEE of the Chinese transportation industry under the FS constraint of shared carbon emissions in a parallel system. To address this problem, we propose a novel parallel data envelopment analysis (DEA) approach that considers FS shared undesirable outputs (FSSUO) based on the generalized equilibrium efficient frontier (GEEF) concept. The GEEF was obtained by minimizing the total adjustment of carbon emissions and used to calculate the overall parallel transportation efficiency. Furthermore, we developed a decomposition framework to estimate the individual passenger transportation performance and freight transportation performance. To the best of our knowledge, this is the first attempt to study the fixed-sum outputs (FSO) in a parallel production system, whereas previous studies addressed FSO in either black-box or two-stage series production systems. Finally, we apply the proposed approach to empirically analyze the EEE of the Chinese transportation industry at the provincial level from 2015 to 2019 and provide valuable empirical findings and policy suggestions.

Le corps du (trans)genre : entre abstraction et réalisation

ObjectivesThis article is concerned with the current challenges to psychoanalysis that gender and gender discordance represent. Indeed, although the term gender is increasingly used, it remains a concept that is more difficult to define and circumscribe than it first appears. MethodIn order to shed light on these issues, the important shift from the transsexual syndrome paradigm to the transgender health paradigm will be discussed. This presentation will then be supported by two clinical vignettes: that of Claudia, whose transition is part of a transsexual journey, and that of Rose, whose transition seems to be more akin to a transgender journey. ResultsClaudia's and Rose's stories allow us to illustrate a different way of apprehending the difference of the sexes: for Claudia, an abstraction that follows the contours of a difference of the sexes considered as binary, and, for Rose, a conception of gender as fluid. DiscussionFollowing these reflections, it is suggested that we return to the concept of gender in order to better define and conceptualize it, particularly in its clinical and theoretical encounter with psychoanalysis. ConclusionGender is thus considered as a frontier concept, referring to a third social body at the crossroads of personal and subjective feeling and the socio-political. In reference to narratology, gender is defined as a personal and/or collective construction aiming to give coherence to the difference of the sexes and supported by a realization through perception. Gender can be thought of as an aide to the binding of sexual excitation associated with questions relating to the anatomical difference of the sexes from a psychoanalytical point of view, which concerns both the analysand and the psychoanalyst.

Exploring the growth value equity valuation model with data visualization

The Growth Value Model (GVM) proposed theoretical closed form formulas consisting of Return on Equity (ROE) and the Price-to-Book value ratio (P/B) for fair stock prices and expected rates of return. Although regression analysis can be employed to verify these theoretical closed form formulas, they cannot be explored by classical quintile or decile sorting approaches with intuition due to the essence of multi-factors and dynamical processes. This article uses visualization techniques to help intuitively explore GVM. The discerning findings and contributions of this paper is that we put forward the concept of the smart frontier, which can be regarded as the reasonable lower limit of P/B at a specific ROE by exploring fair P/B with ROE-P/B 2D dynamical process visualization. The coefficients in the formula can be determined by the quantile regression analysis with market data. The moving paths of the ROE and P/B in the current quarter and the subsequent quarters show that the portfolios at the lower right of the curve approaches this curve and stagnates here after the portfolios are formed. Furthermore, exploring expected rates of return with ROE-P/B-Return 3D dynamical process visualization, the results show that the data outside of the lower right edge of the “smart frontier” has positive quarterly return rates not only in the t + 1 quarter but also in the t + 2 quarter. The farther away the data in the t quarter is from the “smart frontier”, the larger the return rates in the t + 1 and t + 2 quarter.

К вопросу о циркулярных миграциях в городе Кизляр в контексте социально-экономической политики Российской империи на кордонных участках Левого Крыла Кавказской кордонной Линии в первой половине XIX века

Importance. A number of issues of circular and pendulum migrations in the city of Kizlyar during the Caucasian War as a part of the multi-vector Caucasian policy are developed. Materials and Methods. The theoretical basis of the research is the concept of frontier, which allows considering the fortresses along the Caucasian Line as zones of economic communication. The system approach allowed considering a set of strategies for the development of fortress towns along the Caucasian Cordon Line as components of Caucasian policy, based on various methods of policy implementation and having feedback. Results and Discussion. The socio-economic policy of the local administration is analyzed in the context of the Caucasian policy in general and the Caucasian War in particular. The economic frontier contributed to the influx of a large number of highlanders-itinerant-workers, which necessitated the regulation of migration processes and the formation of a trustee body over the highlanders. The development of capitalist relations, which were conditioned by the rapid pace of market development and, as a consequence, the increase in demand for the production sector, required an increase in the number of able-bodied population. Conclusion. Despite the limited competence, the trustee over the highlanders fulfilled the function of involving the highlanders in the socio-economic space of the empire, as well as taking into account the migration processes in the city, prevented the actions of non-peaceful highlanders, aimed at ruining the city and undermining the economic activity of Kizlyar as a key link in the provision supply of fortifications in the Eastern Caucasus, internal trade of the gavernorates of the empire, as well as prevented the sale of strategically important in the conditions of war goods to the mountains.

Liminality, border zones, and fractured identities: a postcolonial study of N. Scott Momaday’s Three Plays

ABSTRACT This research work scrutinises the liminality, borders, and the concept of frontier in the lives of Native American dislocated people, the deterioration of their culture in the process of the westward expansion of America, and the ruthless experience of their detachment from roots through N. Scott Momaday’s Three Plays (2007). The study uses the postcolonial lens of liminality and Communitas given by Van Gennep and expanded by Victor Turner, and it is further facilitated by Mary Louise Pratt’s study of contact zones, what Anderson calls imagined communities, and Louis Owens’ concept of frontier, which he defines as multicultural space, but becomes a static space in terms of Natives, and what Homi K. Bhabha recalls as third space in spatial terms and hybrid in terms of identity. The ever-changing construction of ‘Others’ in Harriet Bradley’s words is called polarised or fractured identities, the concepts which were used to define and redefine Native people. This research unfolds Native Americans’ social and communal setup where cultural memories of the past are faded away. Finally, it concludes that by providing marginalised spaces through liminality and border zones, Native Americans’ identities are shattered, and they are limited to non-human objects.

The making of an oil frontier: Territorialisation dynamics in Uganda's emerging oil industry

Extractive industries are operating in an increasingly complex global context with concerns about human rights, environmental protection, and transparency high on the agenda. To establish a new oil project, oil companies must navigate a landscape of competing territorialisation processes, where the state and extractive companies put in place measures to recognise community rights, conduct ESIAs and provide local benefits. Indigenous groups, social movements and NGOs may challenge these efforts by demanding greater rights protection and benefits, or by resisting extractive industry projects. Drawing on the post frontier concept, this article explores territorialising and counter territorialising dynamics in Uganda during the pre-oil stages of the industry. We find that the drivers and agents of competing territorialisation processes change over time as the industry develops. This is due to the changing role and priorities of oil multinational companies (MNCs) over time, constraints on Ugandan civil society, and tension between the interests of the state to push through oil infrastructure projects and the pressure on oil MNCs to uphold international standards of human rights. We find that the Ugandan post frontier is emerging through a negotiated process, however, not one that is locally responsive and based on consensus but driven more by the changing priorities of oil MNCs and the need to mitigate risk.

The max-reward and min-penalty frontier: A benchmark for research of supply and demand mismatches

The traditional production-oriented frontier in data envelopment analysis is defective in dealing with supply and demand mismatches, where the emphasis is placed on mismatches between input and supply as well as output and demand, instead of simply how input is used to produce output. Previous techniques to evaluate demand effectiveness and supply-demand effectiveness limited the value ranges of penalty parameters and thus failed to consider some extreme situations. To fill this gap, we abandon the traditional concept of frontier and map production units into a new type of frontier. Supply and demand mismatches can increase production costs but can also bring extra revenues in some situations; these outcomes are called penalty and reward, respectively. We map the production possibility set onto a dataset of input and output penalties, namely, the reward/penalty possibility set. A new frontier, called the max-reward and min-penalty frontier, is provided as the benchmark to evaluate decision-making units’ performance in supply management and demand fulfilment and accordingly define reward-penalty effectiveness. Much further research can be done based on this new frontier.

Concepts, models, and indicator systems for urban safety resilience: A literature review and an exploration in China

Safety resilient city is a frontier concept of urban safety development and a hot topic in the field of urban safety research. In this paper, the relevant research results of domestic and foreign scholars are reviewed from the perspectives of concepts and models, the evaluation indicator system of urban safety resilience is compared in terms of risk types, evaluation objects, evaluation dimensions and quantitative methods, and the development of international standards for resilient cities is discussed. Based on the literature review, the connotation of the triangular theoretical model of urban safety resilience is explained, and an urban safety resilience evaluation index system applicable to Chinese cities is proposed, which provides support for the development of the national standard “Guide for safety resilient city evaluation” (GB/T 40947-2021). It is applied to six representative cities as examples for evaluation to explore the direction of Chinese urban safety resilience improvement. The pathway for improving the safety resilience of Chinese cities is discussed.

The Way to Invest: Trading Strategies Based on ARIMA and Investor Personality

In the field of financial investment, accurate prediction of financial market values can increase investor profits. Investor personality affects specific portfolio solutions, which keeps them symmetrical in the process of investment competition. However, information is often asymmetric in financial markets, and this information bias often results in different future returns for investors. Nowadays, machine learning algorithms are widely used in the field of financial investment. Many advanced machine learning algorithms can effectively predict future market changes and provide a scientific basis for investor decisions. The purpose of this paper is to study the problem of optimal matching of financial investment by using machine learning algorithms combined with finance and to reduce the impact of information asymmetry for investors effectively. Moreover, based on the model results, we study the effects of different investor personalities on factors such as expected investment returns and the number of transactions. Based on the time-series characteristics of price data, through multi-model comparison, we select the ARIMA model combined with particle swarm algorithm to determine the optimal prediction model and introduce the concepts of mean-variance model, Sharpe ratio, and efficient frontier to find the balance point of risk and return. In this study, we use gold and bitcoin price data from 2016–2021 to develop optimal investment strategies and study the impact of investor behavior on trading strategies.