bluuebunny/crossref_metadata_2025 huggingface dataset:
Characterization of Lignocellulosic Biomass Samples in Omu-Aran Metropolis, Kwara State, Nigeria, as Potential Fuel for Pyrolysis Yields
Authors: Onokwai Anthony O , Okokpujie Imhade P , Ajisegiri Emmanuel S , Oki Makanjuola , Adeoyeb Adeyinka O , Akinlabi Esther T
Published: June 2022

This study deals with a preliminary investigation of biomass samples' physicochemical, structural composition, and thermal properties to aid the appropriate selection of biomass utilized for pyrolysis operation. The proximate, ultimate, structural composition and thermal analyses were conducted using seven lignocellulose biomass samples obtained in Ajase market, Ajasse Ipo, Kwara State, Nigeria, and Omu-Aran, Kwara State, Nigeria. Results showed that the average moisture contents (MC) ranged from 0.12 to 0.44%, and volatile matter (VM) ranged from 73.70 to 83.82%. Fixed carbon (FC) varied from 12.79 to 22.80%, and Ash contents varied between 01.20 to 5.52%. Similarly, the average carbon contents ranged from 45.11 to 50.00%. Hydrogen contents ranged from 5.38 to 6.15%, nitrogen contents varied between 0.20 to 1.24%, and oxygen contents from 43.79 to 48.51%. Also, sulphur contents varied between 0.01 to 0.19%, while the biomass species' average cellulose, hemicellulose, and lignin contents ranged from 28.34 to 45.80%, 25.83 to 34.01%, and 21.96 to 49.63% respectively. The high percentage of VM, C, H, HHV, ignitability index, cellulose, and hemicellulose content recorded in the biomass samples would enhance devolatilization reactivity, ignitability, and burn gases in the reactor, as well as a good production of hydrocarbons content during the pyrolysis process. Also, the low ash content would prevent harmful chemical deposits in the reactor during the pyrolysis process. It can be deduced that shea butter wood was best suited for biofuel generation, closely followed by sugarcane bagasse and palm kernel shell. At the same time, corn cobs possessed the least properties for the pyrolysis process.
The Community Role in the Implementation of Coronavirus Disease-19 Control Policies in Indonesia
Authors: Mujiati Mujiati , Sumiarsih Mimi , Pujianti Aryani
Published: June 2022

Background: The success of COVID-19 control in Indonesia comes to place with active community participation. Community's role in supporting the successful implementation of COVID-19 policy is critical to investigate. This study, therefore, aimed to determine community’s role in supporting the successful implementation of COVID-19 control policies.Method: This study is exploratory research with a cross-sectional approach. Seven Indonesian regencies as research locations were selected purposively. Quantitative data were collected from 2,010 positive-COVID-19 patients and their close contacts through a standardized self-administered questionnaire. In-depth interviews were employed with 79 health center officers. Content analysis was used to analyze the qualitative data, and descriptive analysis was for the quantitative data. Results: This study had a relatively balanced gender distribution. There were 26.9% at age of 6-19 years, and 80.9% were in close contact with COVID-19 patients. Most respondents were from primary health care centers, had a bachelor's degree, and had worked for less than five years. Their adherence to health protocols was lower than the group that was not exposed to COVID-19. Most respondents followed health protocols such as hygiene (92.9 %) and cough etiquette (91.5 %). However, COVID-19 quarantine compliance was still low (38.2%), and 90.8% of respondents mostly practiced self-isolation at home. COVID-19 control strategies in each region quite varied. A lack of public awareness and education, flexibility in policy implementation, and a poor reward and punishment system were barriers to COVID-19 control. The community's role in supporting COVID-19 control policies includes helping to communicate COVID-19 risks, assisting healthcare centers in monitoring COVID-19 self-isolation, providing and operating integrated isolation shelters for confirmed cases, and participating as a case tracer.
PENGARUH UKURAN PERUSAHAAN, LEVERAGE, DAN PROFITABILITAS TERHADAP NILAI PERUSAHAAN PAPAN UTAMA (Yang Terdaftar Dalam Bursa Efek Indonesia Tahun 2014-2018)
Authors: Virgantara Dika Zanuar
Published: June 2022

Maximizing firm value is the main goal of the firm. The high value of the firm indicates that the firm is able to maintain business continuity and can improve the welfare of shareholders. So that investors are interested in investing their capital in firm’s that have high firm value. Several previous studies have shown different results regarding the value of the company. Therefore this study was conducted to re-examine the theory of the firm value, and to determine the effect of company size, leverage, and profitability on the value of the main board companies listed on the Stock Exchange in the 2014-2018 period.This study uses a causal associative method with a quantitative approach, the data used are secondary data from the reports of the main board firms listed on the Indonesia Stock Exchange in the 2014-2018 period obtained by 107 firms with purposive sampling techniques and analyzed using eviews 10. Data testing techniques used is descriptive statistical analysis, classic assumption test, correlation test, regression test, coefficient of determination analysis, and hypothesis testingThe results of the analysis show that the firm size variable produces a tcount (1.222)  0.05) it means that the firm size partially has no effect on the firm value. Leverage variable produces a tcount (6,020)> ttable(1,974), and a significant value (0,00 <0.05), it means that leverage partially has a significant effect on the firm value. The profitability variable produces a tcount(12,965)> ttable(1,974), and a significant value (0,00 <0.05), it means that profitability has a partially significant effect on firm value. From testing all the independent variables simultaneously obtained fcount(61.079)> ftable(2.62), and the level of significance (0.00 <0.05). This shows simultaneously the variables of firm size, leverage, and profitability together affect  of the firm value main board contained on the Indonesia Stock Exchange period 2014-2018.
The Effect Of Brand Value, Brand Awareness, Brand Loyality On Brand Equity In Sharia Banking Industry
Authors: Endang Endang , Prapti NSS Rr Lulus , Ariefiantoro Teguh
Published: June 2022

Brand equity is one of the core aspects of marketing, all marketing strategies are basically the goal of building a solid brand. Brands have solid equity to succeed in gaining loyal customer marketing and financial benefits. When before deciding to become a customer or client, of course, consumers are inflated by many things that motivate them. Therefore it is very meaningful to analyze the key factors that motivate the use of brand equity and customer service at that time to look for correlations and obtain suitable conclusions. The object that is being studied is the customer of Islamic banking.. The purpose of this research is to identify the impact of brand value, Brand Awareness, Brand Loyality on Brand Equity at Bank Muamalat in Semarang. The research method used in this research is through a survey. Information is analyzed quantitatively and uses a causal research design. The method of taking illustrations used in this research is to use Non-Probability Sampling with purposive sampling method. All of the illustrative information obtained by distributing questionnaires is 100 respondents and will be processed using the SPSS 24 software feature
The role of cohorts in the understanding of the changes in fertility in Czechia since 1990
Authors: Kocourková Jiřina , Slabá Jitka , Šťastná Anna
Published: June 2022

This article presents a detailed analysis of the fertility changes in Czechia since 1990 using the cohort approach and contributes to the overall understanding of the fertility postponement process. Because the timing of childbearing since 1990 has changed significantly, particular attention is devoted to the differences in the timing of fertility between cohorts. Data from the Human Fertility Database was analyzed via both standard (based on age-specific fertility rates) and advanced methods (postponement and recuperation indicators, parity progression ratio). Four groups of cohorts with specific fertility patterns were identified: 1965–1970, 1971–1976, 1977–1982, and 1983–1990. These groups were impacted by the political, economic and social transformation of the 1990s, the financial crisis of 2008–2012 and other socio-economic changes during the study period in different ways. While the 1965–1970 cohort was associated with the rapid occurrence of postponement, it still reflected the early fertility pattern. The 1971–1976 cohort was associated with the most intensive degree of postponement, the 1977–1982 cohort can be linked to the onset of the deceleration of the postponement process, and the 1983–1990 cohort appears to be the first to stabilize their fertility at later ages.
Análisis bibliométrico y revision temática de estudios en consumo infantil de 1974 a 2019
Authors: Granados-León César , Sandoval-Escobar Marithza , Ortegón-Cortázar Leonardo
Published: June 2022

El papel de los niños como consumidores ha generado un gran interés en el marketing social, especialmente en los aspectos relacionados con la alimentación; sin embargo, hay campos como la regulación de la publicidad, el comportamiento digital y las actitudes de los niños hacia los productos, que hasta ahora no están completamente estudiados. Para apoyar las futuras investigaciones de la comunidad científica del marketing social sobre este tema, el presente estudio bibliométrico tuvo como objetivo investigar y describir las líneas y áreas de investigación en psicología, comportamiento y marketing social, en relación con el consumo infantil, para responder a la siguiente pregunta de investigación: ¿Cuáles son las publicaciones, autores y tendencias más importantes en la investigación sobre el consumo infantil en los últimos 45 años? Para ello, se analizaron 1375 artículos de 703 revistas con los paquetes Bibliometrix (R Studio), utilizando una metodología exploratoria y descriptiva, analizando 2588 palabras clave de autor y 1265 palabras clave adicionales con 2597 autores en la base de datos Scopus. Los indicadores cienciométricos muestran la existencia de cinco grupos temáticos relacionados con el consumo infantil. Se concluye que la producción científica sobre el consumo de niños y niñas debe abordar cuestiones de protección y regulación orientadas a la responsabilidad social, especialmente en las comunicaciones integradas de marketing y publicidad de las marcas alimentarias, con mayor y especial cuidado en el entorno digital, debido a la actual inmersión de la población infantil mundial y su creciente autonomía en la elección de contenidos, productos y marcas digitales.
Ecological Civilization Construction and Tourism Development: A Case Study of the Wuling Mountain Area in Western Hunan, China
Authors: Li Yangkuo , Chen Jia , Wei Xiaoqing , Tian Robert Guang
Published: June 2022

Ecological civilization construction is a new urban development concept, while tourism is a resource-saving and environment-friendly industry. The study of the coordinated development between ecological civilization construction and tourism is of great practical significance. Taking the Wuling Mountain area in western Hunan, China, as an example, the entropy weight method and TOPSIS method are used to score the ecological civilization construction system and the tourism industry. A coupling coordination degree model is constructed to analyze the relationship between ecological civilization construction and tourism development. The results show that the Wuling Mountain Region in western Hunan Province showed a lag in tourism development from 2017 to 2019. The coupling coordination degree between ecological civilization construction and the tourism industry is slightly imbalanced. A coordinated pattern of ecological environment construction and tourism development should be accelerated.
On ideals in group algebras: An uncertainty principle and the Schur product
Authors: Borello Martino , Willems Wolfgang , Zini Giovanni
Published: June 2022

In this paper, we investigate some properties of ideals in group algebras of finite groups over fields.
First, we highlight an important link between their dimension, their minimal Hamming distance and the group order.
This is a generalized version of an uncertainty principle shown in 1992 by Meshulam.
Secondly, we introduce the notion of the Schur product of ideals in group algebras and investigate the module structure and the dimension of the Schur square.
We give a structural result on ideals that coincide with their Schur square, and we provide conditions for an ideal to be such that its Schur square has the projective cover of the trivial module as a direct summand.
This has particularly interesting consequences for group algebras of 𝑝-groups over fields of characteristic 𝑝.
The Drivers of the Nutritional Quality and Carbon Footprint of School Menus in the Paris Area
Authors: Chiaverina Pierre , Raynaud Emmanuel , Fillâtre Marie , Nicklaus Sophie , Bellassen Valentin
Published: June 2022

Public school food procurement has been identified as a key lever in the transition towards sustainable food systems. In this study, we assess the nutritional quality and the carbon footprint of 2020 school menus served in 101 municipalities in the inner suburbs of Paris. In this sample, school canteens menus meet an average 8.2/15 (min = 4, max = 14) adequacy score to the regulatory nutritional quality frequency criteria and their carbon footprint averages at 1.9 (min = 1.2, max = 2.6) kgCO2e/day. The nutritional and environmental qualities of canteen menus were not correlated with each other. In-house canteens have a significantly higher nutritional quality – 0.7 more points – and so do larger canteens. The carbon footprint significantly decreases with an increasing education level of the population and, for in-house canteens, it also decreases by 0.16 kgCO2e/day with a ten-fold increase in canteen size and by 0.0035 kgCO2e/day per percent of left-wing vote, breaking even with delegated canteens above 3500 enrolled children and 53% of left-wing vote respectively. The frequency of certified food (mean = 18%, min = 0%, max = 51%), a cornerstone of the 2018 national law aiming at more sustainable institutional catering, has no impact on our indicators of nutritional quality and carbon footprint. The substantial variations between canteens in both nutritional and environmental qualities suggests that there is room for improvement on both ends.
Preferences for the Farmer-Owned Label: Evidence from Cheese Consumers in the United States
Authors: Grashuis Jasper
Published: June 2022

Driven by external developments like industry consolidation and price volatility, organized farm producers seek opportunities to generate rent in the value-added segment of the agri-food industry. Given inherent constraints with cost efficiency and product quality, farm producer organizations (FPOs) may use branding to pursue differentiation. An opportunity is facilitated by the farmer-owned label, which constitutes an ownership signal to consumers. However, empirical evidence of the economic viability of the farmer-owned label is limited. Following a choice experiment with 296 cheese consumers in the United States, we specify a random parameter logit model and find a positive willingness-to-pay for the farmer-owned label which is in excess of private and corporate brands in the same product category. In the final model, the mean willingness-to-pay is estimated at $1.74. While the farmer-owned label is proven to be economically viable in a competitive product category, consumer preferences are heterogeneous. Also, there is no compatibility between the farmer-owned label and indicators of family ownership and product origin.
Persistent Reflection, Artistic Conception: A Review of One Second
Authors: Hu Ke
Published: June 2022

The uniqueness of One Second (Yimiaozhong, 2020) lies in its two-fold expression: it first tells the story of a father at an exceptional point in history who breaks out of jail to look for, then view a clip of his daughter. Second, through the form of cinema, it reflects on the relationship between the movie and audience, exploring the particularities of film to convey the auteur’s sentimentality for the medium. This is a simple but innovative film with rich connotations, diverse in its intentions.
The topology of crystalline matter
Authors: Hoffmann Frank
Published: June 2022

In this chapter an overview is given in which way framework-like crystalline compounds can be regarded as nets, how a net is derived out of a particular crystal structure, what nets actually are, how they can be appropriately described, what the characteristics of nets are, and how this topological approach helps to categorize framework compounds. Finally the term reticular chemistry is explained and a number of examples are given how the topology-guided approach opens up new possibilities to intentionally develop new framework structures on a rational basis.
From bond strength to charge distribution: modern developments of the empirical analysis of crystal structures
Authors: Nespolo Massimo
Published: June 2022

A brief review of the empirical analysis of chemical-bond topology in crystal structures is presented, from the pioneering work of Pauling to the most recent development represented by the Charge Distribution analysis. The strengths and limitations of the various methods are briefly discussed.
Chemical constituents of Desmodium triflorum and their antifungal activity against various phytopathogenic fungi
Authors: Nguyen-Ngoc Hieu , Nguyen-Thi-Thu Trang , Vo-Thi Kieu-Anh , Nguyen-Huu Tung , Tran-Dai Lam , Vu Hoang Dinh , Nghiem Duc Trong , Le Dang Quang
Published: June 2022

In the course of finding new antifungal natural compounds against plant pathogens, the methanol extract of Desmodium triflorum was investigated phytochemically. From n-butanol-soluble fraction, seven compounds (1–7) were isolated and structurally elucidated. Of which, six compounds belong to flavone 6- or 8-C-glycoside class (1–6). Three major compounds (1–3) exhibited moderate in vitro antifungal activity against Sclerotium rolfsii, Fusarium oxysporum f. sp. cubense, and Phytophthora palmivora. Compound 1 (IC50 = 162.1 μg/mL) was most active against S. rolfsii in a dose-dependent manner. At 300 μg/mL, compounds 1 and 2 significantly inhibited P. palmivora, whereas compound 3 lacked effectiveness. In addition, the nanoemulsion of the methanol extract with a droplet size of 12.2 nm displayed an excellent inhibition against S. rolfsii and P. palmivora compared with the normal extract. The presence of 1 (0.846%) and 2 (0.759%) in the methanol extract may attribute to the antifungal activity of D. triflorum. These results proved the potential of D. triflorum and its C-glycoside flavonoids against phytopathogenic fungi for the first time. Besides, an enhancement in the effectiveness of nanoemulsion containing D. triflorum extract against the fungi was confirmed. The structural characteristics of 1 and 2 could be considered to develop new fungicidal substances in the future.
Archeologický a památkový potenciál zaniklého osídlení v pohraničí. Komparativní studie vývoje sídelních struktur po roce 1945
Authors: Bureš Michal , Tišerová Renata
Published: June 2022

The topic of the presented paper finds itself on the border of archaeology, historiography and heritage studies. We compare the circumstances of the complete or partial extinction of settlements in the former Czechoslovak borderland after 1945 in connection with the events that followed the end of World War II. The comparison concerns two areas that lie at opposite e nds of today‘s Czech Republic. The comparison is based on three North Bohemian settlements: Hohenwald (High, Vysoký), Hoffnungstahl (Valley of Hope, Údolí Naděje) and Strickerhäuser (Clearings, Mýtiny) located near the border with Poland. We compare them with villages in the Gratzener Berglands (Novohradské Mountains, Novohradské hory) in the very south of Bohemia near the border with Austria.
„Sbírka Waldes“ v letech 1946–1977. Cesta sbírkového fondu Waldesova muzea knoflíků a spínadel z pražských Vršovic do Muzea skla a bižuterie v Jablonci nad Nisou
Authors: Hrušková Kateřina
Published: June 2022

The study captures the fate of the original collection of the Waldes Museum of Buttons and Fasteners between 1946 and 1977, in the period from its closure to full inclusion in the collection of the Museum of Glass and Jewelery in Jablonec nad Nisou. The Waldes Museum existed between 1916 and 1946 in Pražské Vršovice as a private museum institution founded by the industrialist and collector Jindřich Waldes as part of the company Waldes & Co. The text focuses on the fate of the part of the collection whic h has been managed by the Museum of Glass and Jewellery in Jablonec nad Nisou since 1973, and wh ich has been stored as a UPM deposit for a long time, especially at Jemniště Castle. The Museum of Glass a nd Jewellery has included in its collection the funds of many museum institutions and parts of private collections. This „Vršovice collection“ has a very complex destiny, which definitely deserves attention. The main goal of the study is to answer the question why this ensem ble became a part of the Jablonec Museum. Its second goal attempts to point out in this particula r case how difficult it was to deal meaningfully with confiscated collections. The study was created on the basis of an analysis of many archi val materials, selected articles in periodicals or promotional publications. The history of the above-mentioned ensemble for the period between 1946 and 1977 has not yet been elaborated.
Lady Hester Stanhope, a Monumental Arch, and Multiple Readings of a Triumph at Palmyra
Authors: Yegül Fikret
Published: June 2022

On 27 March 1813, Lady Hester Stanhope, the granddaughter of Lord Chatham, rode a black stallion into Palmyra, the famed ancient caravan city. She was the first Western woman ever to do so, and she was met by a welcoming party: tribal horsemen firing guns, cheering crowds, dancing girls in diaphanous costumes holding Dionysiac thyrsi, and bards singing her praises. The procession led down the long colonnaded avenue to the Monumental Arch, under which Hester was crowned as queen. A wondrous and frenzied desert pageant, the choreographed spectacle evoked memories of Roman triumphs with Dionysiac overtones. In Lady Hester Stanhope, a Monumental Arch, and Multiple Readings of a Triumph at Palmyra, Fikret Yegül examines the relationship between ancient Roman spectacles and the dynamic show put on by the Bedouin desert village of Tadmor in honor of an English lady who escaped her aristocratic privileges to embrace what to her appeared to be the enchanted life of an exotic culture. His essay explores how that special event linked the past to the present with its complex layers of significance concretized by an extraordinary arch and informed by the exuberant imagination of Lady Hester, as well as memories of Palmyra’s warrior queen, Zenobia, who challenged the Romans. Simultaneously, the juxtaposition of a Bedouin village with the famous arch reveals further contradictions and inconsistencies inherent in the re-created “triumph” and shines new light on recent violent efforts to obliterate the monument and the city.
Black Community Building: New Deal Programmatic Advocacy at Atlanta’s University Homes
Authors: Crawford Christina E.
Published: June 2022

Roosevelt Hall was constructed in 1937 to support University Homes in Atlanta, Georgia, the first housing project for African Americans fully funded by the federal government. The building was envisioned by faculty of the adjacent historically Black colleges and universities of the Atlanta University Center, including W. E. B. Du Bois, as a community building to build community, a space where the public housing residents could cultivate the skills they needed to engage in the collective fight for enfranchisement in Jim Crow Georgia. As Christina E. Crawford describes in Black Community Building: New Deal Programmatic Advocacy at Atlanta’s University Homes, Roosevelt Hall’s history demonstrates the transformative impact of local pressure on architecture. The story begins with the planning of University Homes, moves through a discussion of extant political activism on Atlanta’s West Side that affected the project’s development, and ends with the remodeling of the building’s upper floor, within a year of its completion, from a conventional cellular office configuration to a modern open plan appropriate for social, economic, and political education. Public housing projects overseen by federal authorities during the New Deal were not monolithic propositions—they offered opportunities for intervention in siting, sponsorship, and programming that Atlanta’s Black reformers exploited.
Management Technologies of Business Modelling in IT Startup Marketing
Authors:   Odessa I.I.Mechnikov National University, Chaikovska Maryna , Bielienkaia Elina ,   Odessa I.I.Mechnikov National University
Published: June 2022

The article is devoted to the main problematic issues of the relationship between management technologies, business modeling and marketing planning of IT startups. Modern approaches to classification, tasks, templates and elements of building business models are analyzed. Current issues and opportunities of management and marketing in the startup industry are considered. It is proposed to use business modeling tools in the chain of stages of an effective management process for startups to reduce risks. The role of IT startup business model management in marketing planning is determined. The advantages for entrepreneurs and investors of adequate application of business models in order to understand how the business idea will be implemented and assess the profitability of the project are described. The role of marketing planning in the management of IT startups with the help of business modeling management technologies is analyzed on the example of the Ukrainian startup project "Monobank". The principles of integration and convergence of management and marketing of IT-startups in solving the problem of attracting investment and bringing an innovative product or service to market are formulated.
The Impact of Health on Per Capita GDP in Indonesia
Authors: Sari Vita Kartika , Cahyadin Malik
Published: June 2022

The purpose of this study was to estimate the influence of health on per capita GDP in Indonesia in 1986-2018. Health was proxied by three variables including health expenditure, infant mortality rate and life expectancy. The variables expressed a significant indicator to assess health level in a country. Furthermore, the estimation was carried out in the short-run and long-run based on the ARDL-ECM model. The results showed that the feasible ARDL model was ARDL (2, 0, 0, 0). In long-run, per capita GDP was significantly influenced by health expenditure, infant mortality rate and life expectancy. This expressed significant implication of the health level for increasing the economic performance and welfare in Indonesia. Meanwhile, in short-run, it was only influenced by infant mortality rate and (ECT (-1)). Further, Cusum and CusumQ tests showed the empirical model was stable. The policy implication directs that the government can improve the quality of public health, increase health expenditure as a fiscal stimulus, and support increasing public income.
Willingness To Pay Organic Agricultural Products: Contingent Valuation Methods Approach
Authors: Dwp Sucihatiningsih , Amelia Dhea Rizky , Pratama Bayu Rizky , Adzim Fauzul
Published: June 2022

The objective of this study is to analyze the value of Willingness to Pay (WTP) of eco-friendly agricultural products and the factors that influence it. The analytical method used was the contingent valuation method (CVM) and logistic regression analysis. The results show that the total number of WTP in West Java is IDR 620,000, meaning that there will be an additional value of eco-friendly agricultural products by 620,000 for each sale. Then, the total number of WTP in Central Java is IDR 580,000 and then the total number of WTP in East Java is IDR 532,000. Based on the results of the logistic regression estimation, it shows that the variables that have a significant effect on the willingness to pay for eco-friendly agricultural products in West Java include gender, education, marital status, number of family dependents, income, and concern for the environment. Based on the results of the logistic regression estimation, it shows that the variables that have a significant effect on the willingness to pay for eco-friendly agricultural products in Central Java include age, education, number of family dependents, income, and price. Based on the results of the logistic regression estimation, it shows that the variables that have a significant effect on the willingness to pay for eco-friendly agricultural products in East Java include gender, education, marital status, number of family dependents, price, and concern for the environment.
Determinants of Premium and Penalty of Worker Income in Indonesia
Authors: Yunisvita Yunisvita , Teguh Muhammad , Chodijah Rosmiati , Kurniawan Arika , Rahma Sitti Fildzah
Published: June 2022

The worker may be paid more than the worker with whom he is associated or may receive a penalty. This study provides (1) proportion of workers into the following categories: self employed; paid workers; formal workers and informal workers, (2) determinants of segmented workers' income premiums and penalties. Using micro data from the results of the National Labor Force Survey (Sakernas) in February 2020, this study measures the proportion of workers' income and uses a multiple regression model to analyze the determinants of segmented workers' income premiums and penalties in Indonesia. Our findings show that the proportion of income premium and penalty is almost the same, when workers are divided into formal, informal and self-employed, which is predominantly occupied by workers receiving income penalties. A larger proportion of income premiums are received by paid workers or labourers. Years of schooling and the square of years of schooling show a significant effect on the income premium of self-employed and the opposite results on the income penalty. The same thing was found in formal workers. Age, age squared, gender, area of residence show a significant effect on the income penalty of self-employed and income premium of formal workers.
Offensive Difference Styles and Technical Situational Variables Between European and South American Elite Football Leagues
Authors: Izquierdo José María , Redondo Juan Carlos
Published: June 2022

We aimed to compare teams’ attack styles in Europe and South America elite football in the two most valued domestic leagues in both continents (Spanish La Liga & English Premier League in Europe, and Argentinian Superliga & Brazilian Série A in South America). For this purpose, we used a sample of 84 teams and 3,780 cases in 1,214 games. Using an observational tool, we analyzed performance indicators (goals, shots, dribbles, and passes) and attack situations. Effect size (ES) and non-clinical magnitude-based inference (MBI) were used to evaluate uncertainty. Results revealed that European teams scored more goals per game related to fast (ES = 0.35; likely MBI) and positional attack (ES = 0.36; likely MBI). In addition, teams from the European leagues spent more time playing in the opposition third zone of the pitch, performed a higher number of assists (ES = 0.38; likely MBI) and through-ball assists (ES = 0.46; likely MBI) than South American ones. Finally, South American teams made higher numbers of shots out of the box (ES = 1.52, almost certain MBI) and off-target shots (ES = 1.08; almost certain MBI), and they also spent more time playing in the middle third zone (ES = 1.65; almost certain MBI). No differences were identified in set-pieces goals, length passing, and aerial duels. These findings may provide information regarding attack style proﬁles from each continent league. Also, it could be highly beneficial for coaches to be able to continuously design the specific training situations of the offensive process.
¿Influye la pandemia del COVID-19 en las redes sociales de eventos no competitivos en edad escolar y adulta? Estudio de caso
Authors: Gamonales José M. , León Kiko , Muñoz-Jiménez Jesús
Published: June 2022

Las redes sociales son herramientas para mejorar los eventos deportivos. Por ello, el objetivo principal del presente estudio fue analizar los datos estadísticos de participación e impacto de los medios sociales (Facebook, Twitter e Instagram), del evento deportivo “Gimnastrada de Extremadura”, y conocer la influencia de la situación de emergencia y confinamiento provocada por la crisis de la COVID-19 en los mismos para la edición prevista del año 2020. Se analizaron los datos de participación e interacción en las redes sociales, entre los periodos 2016-2017, 2017-2018, 2018-2019 y 2019-2020. Siempre se utilizó la misma estrategia de marketing en todos los medios por internet. Se realizó un análisis descriptivo y exploratorio de los datos. Los resultados mostraron que el número de participantes ha aumentado significativamente, así como los seguidores desde la utilización de las redes sociales, siendo las mujeres las principales participantes y seguidoras. La red social Facebook es el medio utilizado principalmente por los usuarios para conocer y difundir la Gimnastrada de Extremadura en edad escolar y adulta. Por tanto, los resultados evidencian la importancia de conocer las interacciones de seguidores en los medios sociales, con la finalidad de planificar nuevas estrategias de marketing online. Además, a pesar de aplazarse el evento previsto para marzo de 2020, como consecuencia de la pandemia COVID-19, los datos estadísticos de las redes sociales del evento van aumentando cada año. Siendo, el momento de publicación del cartel o suspensión del evento, los instantes que reciben el mayor número de interacciones en las redes sociales.
Vocational Interests of Students in an International Network Learning Environment
Authors: Pantoja Antonio , Berrios Aguayo Beatriz
Published: June 2022

Despite the fact that vocational interests constitute one of the main variables that influence decision-making, their study does not begin until ages that could require late hours, such as Secondary Education. In order to alleviate this deficit, a longitudinal study was carried out, whose main objective was to analyse to what extent a networked learning environment contributes to a better behaviour of primary school students towards their vocational interests. An educational program was developed and implemented based on the international R&D e-Cultures Project. Spain, Portugal and several Latin American countries participated in the research. The evaluation of the program was carried out using a quasi-experimental pretest-posttest design in which an ad hoc questionnaire was applied to collect the data. The results showed a stronger career decision in boys (as opposed to girls). On the other hand, vocational interests were less related to the country of residence. It is concluded that vocational guidance, working collaboratively in a networked learning environment with an intercultural perspective, enhances the decision-making process and definition of professional goals, contributing to the teaching of science in primary school students.
Dynamic analysis of a Leslie–Gower-type predator–prey system with the fear effect and ratio-dependent Holling III functional response
Authors: Chen Hongyu , Zhang Chunrui
Published: June 2022

In this paper, we extend a Leslie–Gower-type predator–prey system with ratio-dependent Holling III functional response considering the cost of antipredator defence due to fear. We study the impact of the fear effect on the model, and we find that many interesting dynamical properties of the model can occur when the fear effect is present. Firstly, the relationship between the fear coefficient K and the positive equilibrium point is introduced. Meanwhile, the existence of the Turing instability, the Hopf bifurcation, and the Turing–Hopf bifurcation are analyzed by some key bifurcation parameters. Next, a normal form for the Turing–Hopf bifurcation is calculated. Finally, numerical simulations are carried out to corroborate our theoretical results.
ACETONE-BUTYL FERMENTATION PECULIARITIES OF THE BUTANOL STRAINS -PRODUCER
Authors:   SE ", Tigunova O. O. ,   Institute of Food Biotechnology and Genomics of the National Academy of Sciences of Ukraine",   , Kyiv
Published: June 2022

The aim of this review was to generalize and analyze the features of acetone-butyl fermentation as a type of butyric acid fermentation in the process of obtaining butanol as an alternative biofuel. Methods. The methods of analysis and generalization of analytical information and literature sources were used in the review. The results were obtained using the following methods such as microbiological (morphological properties of strains), chromatographic (determination of solvent concentration), spectrophotometric (determination of bacterial concentration), and molecular genetic (phylogenetic analysis of strains). Results. The process of acetone-butyl fermentation was analyzed, the main producer strains were considered, the features of the relationship between alcohol formation and sporulation were described, the possibility of butanol obtaining from synthesis gas was shown, and the features of the industrial production of butanol were considered. Conclusions. The features of the mechanism of acetone-butyl fermentation (the relationships between alcohol formation and sporulation, the duration of the acid-forming and alcohol-forming stages during batch fermentation depending on the change in the concentration of H2, CO, partial pressure, organic acids and mineral additives) and obtaining an enrichment culture during the production of butanol as an alternative fuel were shown. The possibility of using synthesis gas as a substrate for reducing atmospheric emissions during the fermentation process was shown. The direction of increasing the productivity of butanol-producing strains to create a competitive industrial biofuel technology was proposed.
The Effect of Dow Jones Islamic Market World Index, Foreign Exchange, Foreign Investment and Domestic Investment with the Intervening Composite Stock Price Index on the Indonesian Sharia Stock Index
Authors: Halim Sofyan
Published: June 2022

Abstract. The purpose of this research is to know the effect of the DJIMWI, Forex, Foreign Investment, Domestic Investment on the Indonesian Sharia Stock Index (ISSI) with the intervening of JCI in the research period. Through regression analysis, this study concludes that the DJIWMI and the foreign exchange variables have significant positive effect on the JCI. However, the JCI is not significantly affected by the foreign investment but is influenced by domestic investment. Furthermore, it shows that DJIMWI and domestic investment have a significant positive effect on ISSI. The pathway analysis shows that there is a significant effect between the JCI variables on the ISSI. DJIMWI through the JCI has a significant influence on ISSI. Meanwhile, the foreign exchange variable through the JCI has a significant influence on the ISSI variable. On the other hand, the variable of foreign investment through the JCI has no significant effect on ISSI; however, domestic investment through the JCI has a significant influence on ISSI. The limitations of the study are factors outside the research model, which are 25.88% and 53.47% of the dependent variable of JCI and ISSI.Keywords: Dow Jones Islamic Market World Index, Foreign Investment, Domestic Investment, Indonesian Sharia Stock Price Index, Composite Stock Price Index, Foreign Exchange Rate Abstrak. Tujuan dari Penelitian ini untuk mengetahui pengaruh dari variable Dow Jones Islamic Market World Index (DJIMWI), valuta asing, investasi asing, investasi domestik terhadap Indeks Saham Syariah Indonesia dengan intervening variabel IHSG pada periode yang dikaji. Melalui analisis regresi, penelitian ini menyimpulkan bahwa DJIWMI dan valuta asing berpengaruh positif secara signifikan terhadap IHSG. Namun demikian, IHSG tidak terpengaruh secara signifikan oleh investasi asing, tetapi dipengaruhi oleh investasi domestik. Selanjutnya, studi ini menunjukkan bahwa DJIMWI dan investasi domestik berpengaruh positif secara signifikan terhadap ISSI. Hasil uji melalui analisis pathway menunjukkan adanya pengaruh signifikan antara variabel IHSG pada ISSI. DJIMWI dan valuta sing melalui IHSG memiliki pengaruh signifikan terhadap ISSI. Di sisi lain, investasi asing melalui IHSG tidak berpengaruh signifikan terhadap ISSI; namun investasi domestik melalui IHSG memiliki pengaruh signifikan terhadap ISSI. Keterbatasan penelitian ada pada faktor di luar model penelitian sebesar 25,88% dan 53,47% dari variable dependen IHSG dan ISSI.Keywords: Dow Jones Islamic Market World Index, Investasi Asing, Investasi Domestik, Indeks Saham Syariah Indonesian, Indeks Harga Saham Gabungan, Valuta Asing
Why do Asnaf Entrepreneurs Become Successful? The Role of Intention, Opportunity, and Resources
Authors: Bahri Efri Syamsul , Ali Juhary , Aslam Mohd Mizan Mohammad
Published: June 2022

Qardhawi's opinion on the 2009 zakah disbursement model related to the empowerment of productive aṣnāf has encouraged the development of productive zakah in poverty alleviation. This study aims to examine the effect of intentions, opportunities, and resources on successful aṣnāf entrepreneurs. The method used is the mono method, namely quantitative research. Data was obtained through a survey using purposive sampling. Primary data were examined using the PLS-SEM method and the SmartPLS application. This study found that the intention and opportunity factors had a positive and significant effect on the success of aṣnāf entrepreneurs. Meanwhile, resources have a negative impact on the success of aṣnāf entrepreneurs. This is evidence that the zakah resources given to aṣnāf entrepreneurs must be optimized so that they can have a significant impact. This finding provides recommendations to zakah management entities and policy makers to be able to increase the contribution of zakah funds in poverty alleviation through the aṣnāf entrepreneurial program.  AbstrakPendapat Qardhawi tentang model pencairan zakat tahun 2009 terkait pemberdayaan aṣnāf produktif telah mendorong berkembangnya zakat produktif dalam pengentasan kemiskinan. Penelitian ini bertujuan menguji pengaruh niat, peluang, dan sumber daya terhadap pengusaha aṣnāf yang sukses. Metode yang digunakan ialah metode mono yaitu penelitian kuantitatif. Data diperoleh melalui survei dengan menggunakan purposive sampling. Data primer diperiksa menggunakan metode PLS-SEM dan aplikasi SmartPLS. Penelitian ini menemukan bahwa faktor niat dan peluang berpengaruh positif dan signifikan terhadap keberhasilan wirausaha aṣnāf. Sementara itu, sumber daya berdampak negatif terhadap keberhasilan pengusaha aṣnāf. Hal ini menjadi bukti bahwa sumber daya zakat yang diberikan kepada pengusaha aṣnāf harus dioptimalkan agar mampu memberikan pengaruh signifikan. Temuan ini memberikan rekomendasi kepada entitas pengelola zakat dan pengambil kebijakan agar mampu meningkatkan kontribusi dana zakat dalam pengentasan kemiskinan melalui program wirausaha aṣnāf.
Sharia Financial Institutions Compliance Towards Islamic Principles in Performing Intermediation Functions
Authors: Usman Mizaj Iskandar
Published: June 2022

This study aims to determine the factors of non-compliance with Islamic principles in Islamic Financial Institutions (IFIs). This article argues that IFIs must comply with Islamic principles based on the DSN-MUI fatwa, even though in the Indonesian legal hierarchy, DSN-MUI fatwas are not binding. IFIs show ambiguity in complying with Islamic principles when carrying out their intermediation function. Several other factors also cause IFIs' lack of compliance with sharia principles. These include the lack of applicability of the DSN-MUI fatwas, the conflict of interest of the Sharia Supervisory Board (SSBs), and competency issues among SSBs members. To address these issues, it is necessary to strengthen the regulations that make DSN-MUI an authoritative institution in establishing the sharia principles and the fatwas methodology. Thus, the fatwas are more applicable and avoid ambiguity. Furthermore, SSBs need re-structurization to be independent internal supervisory agencies. AbstrakPenelitian bertujuan mengetahui faktor-faktor ketidakpatuhan lembaga keuangan syariah (LKS) pada prinsip-prinsip Islam. Artikel ini menyebutkan LKS harus mematuhi prinsip-prinsip Islam sesuai fatwa DSN-MUI, walaupun dalam hierarki hukum Indonesia, DSN-MUI bukanlah sebuah lembaga otoritatif yang menerbitkan hukum mengikat. LKS tampak ambigu dalam mematuhi prinsip-prinsip Islam saat menjalankan fungsi intermediasinya. Ketidakpatuhan LKS kepada prinsip-prinsip syariah juga disebabkan oleh beberapa faktor lain, seperti: tidak aplikatifnya fatwa DSN-MUI; munculnya konflik kepentingan DPS; dan masalah kompetensi anggota DPS. Untuk mengatasi masalah-masalah tersebut, perlu adanya perbaikan regulasi yang menjadikan DSN-MUI sebagai lembaga otoritatif, agar fatwa yang dikeluarkan lebih aplikatif dan tidak menimbulkan multi tafsir. Sementara dari sisi DPS, perlu adanya regulasi merestrukturisasi organisasi DPS dengan menepatkannya sebagai lembaga pengawas internal yang independen.
Clinical Evidence and Proposed Mechanisms of Sodium–Glucose Cotransporter 2 Inhibitors in Heart Failure with Preserved Ejection Fraction: A Class Effect?
Authors: Deschaine Brent , Verma Sahil , Rayatzadeh Hussein
Published: June 2022

Effective treatment for heart failure with preserved ejection fraction (HFpEF) is an unmet need in cardiovascular medicine. The pathophysiological drivers of HFpEF are complex, differing depending on phenotype, making a one-size-fits-all treatment approach unlikely. Remarkably, sodium–glucose cotransporter 2 inhibitors (SGLT2is) may be the first drug class to improve cardiovascular outcomes in HFpEF. Randomised controlled trials suggest a benefit in mortality, and demonstrate decreased hospitalisations and improvement in functional status. Limitations in trials exist, either due to small sample sizes, differing results between trials or decreased efficacy at higher ejection fractions. SGLT2is may provide a class effect by targeting various pathophysiological HFpEF mechanisms. Inhibition of SGLT2 and Na+/H+ exchanger 3 in the kidney promotes glycosuria, osmotic diuresis and natriuresis. The glucose deprivation activates sirtuins – protecting against oxidation and beneficially regulating metabolism. SGLT2is reduce excess epicardial adipose tissue and its deleterious adipokines. Na+/H+ exchanger 1 inhibition in the heart and lungs reduces sodium-induced calcium overload and pulmonary hypertension, respectively.