The bifunctional formalism: an alternative treatment of density functionals

The bifunctional formalism presents an alternative how to obtain the functional value from its functional derivative by exploiting homogeneous density scaling. In the bifunctional formalism the density dependence of the functional derivative is suppressed. Consequently, those derivatives have to be treated as formal functional derivatives. For a pointwise correspondence between the true and the formal functional derivative, the bifunctional expression yields the same value as the density functional. Within the bifunctional formalism the functional value can directly be obtained from its derivative (while the functional itself remains unknown). Since functional derivatives are up to a constant uniquely defined, this approach allows for a pointwise comparison between approximate potentials and reference potentials. This aspect is especially important in the field of orbital-free density functional theory, where the burden is to approximate the kinetic energy. Since in the bifunctional approach the potential is approximated directly, full control is given over the latter, and consequently over the final electron densities obtained from variational procedure. Besides the bifunctional formalism itself another concept is introduced, dividing the total non-interacting kinetic energy into a known functional part and a remainder, called Pauli kinetic energy. Only the remainder requires further approximations. For practical purposes sufficiently accurate Pauli potentials for application on atoms, molecular and solid-state systems are presented.

Investigation of The Sufficiency of Antalya Parks

Urban green spaces are areas established to meet the recreational needs of urban people. Although green spaces vary from country to country and region in terms of plan and design features, they were basically created to allow people to meet with nature. Parks are the basic components of urban landscapes that provide environmental and social functional value. Urban parks, in particular, provide spaces for outdoor physical activities. In order to take advantage of the opportunities of activities in the parks, users must have convenient access to these resources. One of the most important aspects for researching the use and potential benefits of urban green spaces is the assessment of their geographic accessibility. The widespread use of smart city systems and the gradual expansion of their usage areas increase the importance of spatial analysis. Spatial analyses are used in today’s urban management in the processes of determining social needs, identifying current problems, and putting forward solutions. When spatial analyses are used together with GIS, the field of application develops even more, and it supports local governments in responding to the changing demands of the society for a better life. In the study, the adequacy and accessibility of 160 city parks in Konyaaltı District of Antalya Province were examined. In terms of the adequacy of the parks, the area value of 10 m2 per person determined with the Construction Plan numbered 3194 was taken as basis. In terms of accessibility, distance values of 200, 400, 800, 1,200 meters were examined. Neighborhood boundaries and population information were obtained from the relevant units, and Arc-GIS software was used in the analysis. It was determined that the parks in Konyaaltı district were insufficient in terms of adequacy and accessibility. Finally, suggestions were made in terms of increasing the adequacy of the parks and ensuring accessibility.

A Preliminary Exploration of the Functional Value Assessment of Ecosystem Services in Aral City

Using the principles and methods of eco-economics as the research object, Aral City comprehensively expounds the ecological service functions such as ecosystem regulation of climate, carbon sequestration, soil conservation, water conservation and purification environment, and evaluates its economic value.The total value of the estimated 2021 is 1303.65 million yuan. At the same time, the importance of ecological service functions of urban ecosystems, from large to small, is to sequester carbon and release oxygen, purify the environment, maintain soil, conserd water sources, regulate the climate. The ecosystem service function which needs to be paid attention to in the concept of ecological construction and restoration of the next stage of ecological construction in Aral City.

ТЕОРЕТИЧНІ ПІДХОДИ ДО ВИВЧЕННЯ СТАВЛЕННЯ ДО МОВИ

This article focuses on the analysis of the scientific literature on investigating language attitude, theoretical approaches to the language attitude analyzed, the core paradigms of investigation connected to studying and distinguishing of language attitude presented, as well as the importance of data gathered regarding language attitudes and the specific nature of the language attitude studies in Ukraine that are analyzed. Studying language attitudes is popular, as the language which is investigated has numerous sociocultural functions, and knowledge of language attitudes helps to achieve success in language policy planning. Moreover, influences on linguistic personality and language attitudes allow evaluation not only of the loyalty to a particular language, but also the functional value of each of these. Language attitude is an instrument which allows successful language policy to be constructed, and also informs about the language identification of speaker, as well as about language status and prestige.

Impact of The Advancement of Functional Value on Digital Media for Students in the Industrial Era 4.0

The problem of the functional value advancement on digital media resulted in increased competitiveness in the face of the current industrial era 4.0. Prospective professionals are also required to have knowledge and abilities that can compete in the current industrial era 4.0. The new chapter of industry 4.0 also has a significant impact, especially in work. One of them is the number of abilities or skills that must be owned by the community, especially students, to get a job. However, many students find it challenging to find work in today's digital and industrial age. They also have minimal experience and knowledge in utilizing digital media. The purpose of this research is to find out more about the reasons for utilizing the advancement of the functional value of digital media along with the impact and results of the advancement of the functional value of digital media for students in facing the current industrial era 4.0. The authors used questionnaires, observations, and online literature studies to obtain the data needed and used them as references by comparing, analyzing, and matching before completing the study. The study used Miles and Huberman qualitative data analysis. The data obtained will be analyzed descriptively qualitatively. The results showed that in the research sample, namely students of the Faculty of Cultural Sciences batch 2020 Universitas Airlangga, the advancement of the functional value of digital media had had a positive impact and results. Both in increasing the skills needed in the competition of the industrial era 4.0 and obtaining information and opportunities for students to participate in internships, volunteers, and others that support the improvement of experience.

E-governance using mobile applications: A case study of India during the COVID-19 pandemic

Healthcare initiatives backed by electronic-governance (e-governance) principles have contributed well to the extant literature and practice. Governments and healthcare systems across the world were taken aback by the swamping impact of the COVID-19 pandemic. However, they reacted quickly by developing contact-tracing mobile applications (apps) for creating awareness, providing information about various healthcare initiatives, and helping citizens to use the required information in case of emergency. The major challenge was to develop such e-governance interventions in a short time and ensure their quick adoption among the masses. Hence, it is worthwhile to investigate the factors leading to the adoption of such e-governance initiatives, especially in the context of a widespread pandemic situation. The present study is an attempt to analyze the factors driving the intention to use contact tracing mobile apps launched by governments globally during the COVID-19 pandemic. We have conducted the study in the context of India, where the government launched a community-driven contact tracing mobile app for its citizens during the COVID-19 pandemic in April 2020. The study adopted an empirical approach to test how epistemic value, convenience value, conditional value, functional value, and privacy concerns influenced the intention to use this approach. The study found that intention to use such an app was positively influenced by functional value, which in turn was positively influenced by convenience and conditional values. It suggests that the convenience of using the app, perceived seriousness of the pandemic (i.e., conditional value), and utilitarian benefits (i.e., functional value) of the contact-tracing mobile app enhanced its acceptance. However, its novelty (i.e., epistemic value) and privacy concerns are not significant predictors of intention to use. The study recommends that the government should place more emphasis on improving the functional value which is driven by convenience and context-specific features to push the use of an e-governance initiative during the crisis.

Cañihua (Chenopodium pallidicaule Aellen) a promising superfood in food industry: a review

Purpose The purpose of this paper is to divulge the current knowledge about the nutritional and functional characteristics of Cañihua (Chenopodium pallidicaule Aellen), in addition to its potential applications in the food industry since research studies related to it are still limited compared to other cereals of greater diffusion. Design/methodology/approach The scientific information was collected from Web of Science, Scopus and Google Scholar databases, using keywords such as nutrition value of Chenopodium pallidicaule, amaranth and pseudocereals. Consistent information was selected according to its relevance, year of publication and accuracy with the topic. A total of 49 research papers were selected. Findings Cañihua is a grain with high nutritional potential, considered a superfood because it has a high protein quality, a balanced composition of essential amino acids and unsaturated fatty acids, with a high concentration of linoleic and oleic acid. Besides, it has a good level of bioactive compounds with high antioxidant capacity. However, its production and consumption are limited outside its area of origin, although its cultivation is possible under harsh conditions. Originality/value This paper, through a systematic bibliographic review, highlights the potential of cañihua to be considered in the development of food products with high nutritional and functional value. The information compiled will help researchers and professionals become aware of the importance of this grain and join forces in its processing and enhancement of its attributes.

Pengaruh Consumption Value dalam meningkatkan purchase intention layanan online food delivery pada Clay Craft Restaurant di Renaissance Bali Uluwatu Resort & Spa

Purchase Intention mengacu pada kemungkinan konsumen untuk membeli produk. Salah satu aspek yang mempengaruhi purchase intention adalah sejauh mana consumption value mendorongnya. Penelitian ini dilakukan untuk mengetahui pengaruh consumption value (functional value, social value, conditional value dan epistemic value) dalam meningkatkan purchase intention layanan online food delivery saat pandemi COVID-19 pada Clay Craft Restaurant di Renaissance Bali Uluwatu Resort & Spa. Teknik pengumpulan data yang digunakan dalam penelitian ini adalah kuesioner, wawancara, studi dokumentasi dan observasi. Responden dalam penelitian ini berjumlah 100 responden dengan menggunakan purposive sampling. Teknik analisa data dalam penelitian ini adalah regresi linear berganda, Uji t, Uji F, uji koefisien determinasi dan sumbangan efektif. Hasil dari penelitian ini menunjukkan bahwa consumption value (functional value, social value, conditional value dan epistemic value) secara simultan berpengaruh signifikan terhadap Purchase Intention. Berdasarkan hasil uji koefisien determinasi menunjukan bahwa Variabel pembentuk Consumption Value (Functional Value, Social Value, Conditional Value dan Epistemic Value) memiliki kontribusi sebesar 61,9% dalam mempengaruhi Purchase Intention, sedangkan sisanya 38,1% dipengaruhi oleh variabel lainnya yang tidak diteliti dalam penelitian ini.Kata Kunci: consumption value, purchase intention, online food delivery

Optimization of the enzymatic synthesis of fructo-oligosaccharides using fructosyltransferase from aspergillus aculeatus

The obvious benefits of employing prebiotics as functional components in many food and feed products have resulted in higher demand for their industrial production, necessitating the development of more efficient and cost-effective manufacturing procedures. As a result, the goal of this study was to synthesize confirmed prebiotics, namely fructo-oligosaccharides (FOS), using sucrose as a substrate, since it allows the synthesis of oligosaccharides with lower polymerization degree, and consequently, a more pronounced prebiotic effect. Due to its availability, low market price, and high stability under industrial conditions, a commercial enzymatic mixture, Pectinex® Ultra SP-L, is used as a source of enzyme – fructosyltransferase (FTase). By optimizing reaction conditions such as pH, temperature, enzyme and substrate concentrations, as well as the duration of the process, the composition of the FOS mixture can be adjusted to fit the potential applications. It was found that by performing the reaction in an aqueous medium (pH 7), at a temperature of 50 °C using an enzyme concentration of 1% (v/v) and any sucrose concentration in the range of 200-700 g/L, it was possible to achieve maximum FOS yield of 60% of total carbohydrates within a 24 h. The produced syrup with a high content of FOS can be further used as an adequate food additive, or else, optimized proceses should be used for transformation of various food products (such as juices, jams, fillings, candies, cakes, etc.) in which sucrose dominates, creating products with lower caloric and higher functional value.