bluuebunny/crossref_metadata_2025 huggingface dataset:
Virtual organizations
Authors:   Lviv Polytechnic National University, Litorovych O. , Maslakov S. ,   Lviv Polytechnic National University
Published: June 2021

Trends in the development of modern markets, such as the globalization, the growing importance of product quality, price and customer satisfaction, the increasing importance of sustainable relationships with consumers, the growing importance of the degree of application of new information and communication technologies and the COVID-19 pandemic have significantly influenced the development of new organizational forms of enterprise management. In this regard, the question of the impact of telecommuting on relationships and interpersonal networks within organizations has become relevant. The aim of the article is to analyze the factors influencing to the creation and development of virtual organizations, as well as to identify types of virtual organizations. The research also covers a review of the main foreign and domestic virtual organizations. The article considers the theoretical foundations, factors and they influencing on the formation of virtual organizations. The article analyzes the existing approaches to the definition of a virtual organization, highlights the main types of virtual structures, the main characteristics and advantages of a virtual organization, and also highlights the features characteristic of all types of virtual organizations. The features and main problems of managing virtual organizations are identified. Virtual organization is the newest and potentially promising form of network structures, appeared and became widespread in the last decade. A virtual organization can flexibly change its configuration, where the strategic advantage of such a system provides sustainability and survival in a market economy, the ability of participants to provide flexibility and integration of resources, and the ability to quickly create virtual teams and virtual environments. However, the virtual organization has the same capabilities and potential as a traditional organization, but the virtual organization has not such institutional and structural boundaries.
Digital marketing and social networks
Authors:   Lviv Polytechnic National University, Ugolkova Olena
Published: June 2021

The rapid development of digital communication technologies, the spread of Internet access to the population, the growing number of smartphones, increasing the number of social network users and other factors are the reason for the sharp growth of online operations and services in recent years. In 2020, the Covid-19 epidemic was added to this list of factors, creating an additional impetus for the growth of online business. This situation causes significant changes in the implementation of marketing activities by enterprises. Digital marketing is an important tool that allows companies to achieve their marketing goals, as well as influence a large number of people at a relatively low cost. More and more consumers are spending a significant amount of time on the Internet searching for information, products and services, communicating with other consumers about their experience and interaction with companies. The purpose of this article is to substantiate the theoretical and practical provisions of the use of digital marketing in the enterprise, to characterize the possibilities of using social networks as a tool of digital marketing, taking into account their features, limitations and advantages. The article substantiates that in modern conditions it is not enough to have only a website for the enterprise. Social networks play an increasingly important role not only in people’s lives, but also in business activities, which is an additional but important way to attract the attention of potential customers and promote trust. The most effective ways to use Facebook as a marketing tool are analyzed (direct advertising, social posting, detailed audience analysis, link sharing). It also describes a number of features that should be considered for forming a digital marketing strategy in 2021 and 2022. It is concluded that marketing in social networks can be a valuable tool that will help create an Internet brand awareness for the company, increase trust in it and develop the demand for goods and services.
Study of the Compressive Strength of Concrete Using Marble, Granite and Recycled Aggregates with Polypropylene Fiber
Authors: Sonwane Rajiv , Kushwaha Pushpendra Kumar , Thomas Jiji M
Published: June 2021

Marble Industry produces large amount of waste during mining and processing stages. This waste is dumped on to open land which creates a lot of environmental problems We get recycle aggregate from the old dumped structures and buildings. The main objective of this study was utilization of marble, granite and recycled aggregate waste with polypropylene fiber as a replacement for conventional natural coarse aggregates in concrete. Experimental investigations were carried out to examine the feasibility of use of marble, granite and recycled aggregates waste as coarse aggregates in concrete. Conventional natural coarse aggregates was fully replacement by marble in different percentages 0-60% , granite 0-30% and recycle aggregates 0-40% with polypropylene fiber less than 1% by weight. The concrete formulations were prepared with a constant water.
Penggunaan Google Form Sebagai Alat Evaluasi Pembelajaran Ujian Pendidikan Kesetaraan Paket C Secara Daring Di SPNF SKB Wilayah 1 Kota Padang
Authors: Nainggolan Lilis Swarni , Rohman Arif Nur
Published: June 2021

Penelitian ini bertujuan untuk melihat pemanfaatan google form dalam pelaksanaan evaluasi pembelajaran ujian pendidikan kesetaraan pada peserta didik paket C (setara SMA) tahun ajaran 2020/ 2021 di SPNF SKB Wilayah 1 Kota Padang. Metode yang digunakan dalam penelitian ini adalah kualitatif dengan pendekatan deskriptif. Dengan Teknik pengumpulan data berupa observasi dan studi dokumentasi dari subyek penelitian yaitu tutor/ pendidik yang mengampu mata pelajaran di kelas XII (dua belas) yang diujikan dalam UPK program paket C tahun 2021 di SPNF SKB Wilayah I Kota Padang. Hasil dari penelitian ini menunjukan bahwa pelaksanaan evaluasi program kesetaraan (ujian Pendidikan kesetaraan) di paket C yang diikuti oleh peserta didik kelas XII diketahui bahwa peserta didik yang melaksanakan UPK lebih banyak menggunakan metode daring (google form).
PDE boundary conditions that eliminate quantum weirdness: a mathematical game inspired by Kurt Gödel and Alan Turing
Authors: Boyd Jeffrey
Published: June 2021

Although boundary condition problems in quantum mathematics (QM) are well known, no one ever used boundary conditions technology to abolish quantum weirdness. We employ boundary conditions to build a mathematical game that is fun to learn, and by using it you will discover that quantum weirdness evaporates and vanishes. Our clever game is so designed that you can solve the boundary condition problems for a single point if-and-only-if you also solve the “weirdness” problem for all of quantum mathematics. Our approach differs radically from Dirichlet, Neumann, Robin, or Wolfram Alpha. We define domain Ω in one-dimension, on which a partial differential equation (PDE) is defined. Point α on ∂Ω is the location of a boundary condition game that involves an off-center bi-directional wave solution called Æ, an “elementary wave.” Study of this unusual, complex wave is called the Theory of Elementary Waves (TEW). We are inspired by Kurt Gödel and Alan Turing who built mathematical games that demonstrated that axiomatization of all mathematics was impossible. In our machine quantum weirdness vanishes if understood from the perspective of a single point α, because that pinpoint teaches us that nature is organized differently than we expect.
Metallic Means : Beyond the Golden Ratio, New Mathematics and Geometry of all Metallic Ratios based upon Right Triangles, The Formation of the Triples of Metallic Means, And their Classical Correspondence with Pythagorean Triples and p≡1(mod 4) Primes, A
Authors: Rajput Dr. Chetansing
Published: June 2021

This paper brings together the newly discovered generalised geometry of all Metallic Means and the recently published mathematical formulae those provide the precise correlations between different Metallic Ratios. The paper also puts forward the concept of the “Triples of Metallic Means”. This work also introduces the close correspondence between Metallic Ratios and the Pythagorean Triples as well as Pythagorean Primes. Moreover, this work illustrates the intriguing relationship between Metallic Numbers and the Digits 3 6 9.
Real-Time Turkish Sign Language Recognition Using Cascade Voting Approach with Handcrafted Features
Authors: Karacı Abdulkadir , Akyol Kemal , Turut Mehmet Ugur
Published: June 2021

In this study, a machine learning-based system, which recognises the Turkish sign language person-independent in real-time, was developed. A leap motion sensor was used to obtain raw data from individuals. Then, handcraft features were extracted by using Euclidean distance on the raw data. Handcraft features include finger-to-finger, finger -to-palm, finger -to-wrist bone, palm-to-palm and wrist-to-wrist distances. LR, k-NN, RF, DNN, ANN single classifiers were trained using the handcraft features. Cascade voting approach was applied with two-step voting. The first voting was applied for each classifier’s final prediction. Then, the second voting, which voted the prediction of all classifiers at the final decision stage, was applied to improve the performance of the proposed system. The proposed system was tested in real-time by an individual whose hand data were not involved in the training dataset. According to the results, the proposed system presents 100 % value of accuracy in the classification of one hand letters. Besides, the recognition accuracy ratio of the system is 100 % on the two hands letters, except “J” and “H” letters. The recognition accuracy rates were 80 % and 90 %, respectively for “J” and “H” letters. Overall, the cascade voting approach presented a high average classification performance with 98.97 % value of accuracy. The proposed system enables Turkish sign language recognition with high accuracy rates in real time.
VP-RDF: An RDF Based Framework to Introduce the Viewpoint in the Description of Resources
Authors: Djama Ouahiba
Published: June 2021

The description of resources and their relationships is an essential task on the web. Generally, the web users do not share the same interests and viewpoints. Each user wants that the web provides data and information according to their interests and specialty. The existing query languages, which allow querying data on the web, cannot take into consideration the viewpoint of the user. We propose introducing the viewpoint in the description of the resources. The Resource Description Framework (RDF) represents a common framework to share data and describe resources. In this study, we aim at introducing the notion of the viewpoint in the RDF. Therefore, we propose a View-Point Resource Description Framework (VP-RDF) as an extension of RDF by adding new elements. The existing query languages (e.g., SPARQL) can query the VP-RDF graphs and provide the user with data and information according to their interests and specialty. Therefore, VP-RDF can be useful in intelligent systems on the web.
Solving Systems of Linear Equations Based on Approximation Solution Projection Analysis
Authors: Lavendels Jurijs
Published: June 2021

The paper considers an iterative method for solving systems of linear equations (SLE), which applies multiple displacement of the approximation solution point in the direction of the final solution, simultaneously reducing the entire residual of the system of equations. The method reduces the requirements for the matrix of SLE. The following SLE property is used: the point is located farther from the system solution result compared to the point projection onto the equation. Developing the approach, the main emphasis is made on reduction of requirements towards the matrix of the system of equations, allowing for higher volume of calculations.
Feature extraction and gait classification in hip replacement patients on the basis of kinematic waveform data
Authors: Dindorf Carlo , Teufl Wolfgang , Taetz Bertram , Becker Stephan , Bleser Gabriele , Fröhlich Michael
Published: June 2021

Study aim: To find out, without relying on gait-specific assumptions or prior knowledge, which parameters are most important for the description of asymmetrical gait in patients after total hip arthroplasty (THA).

Material and methods: The gait of 22 patients after THA was recorded using an optical motion capture system. The waveform data of the marker positions, velocities, and accelerations, as well as joint and segment angles, were used as initial features. The random forest (RF) and minimum-redundancy maximum-relevance (mRMR) algorithms were chosen for feature selection. The results were compared with those obtained from the use of different dimensionality reduction methods.

Results: Hip movement in the sagittal plane, knee kinematics in the frontal and sagittal planes, marker position data of the anterior and posterior superior iliac spine, and acceleration data for markers placed at the proximal end of the fibula are highly important for classification (accuracy: 91.09%). With feature selection, better results were obtained compared to dimensionality reduction.

Conclusion: The proposed approaches can be used to identify and individually address abnormal gait patterns during the rehabilitation process via waveform data. The results indicate that position and acceleration data also provide significant information for this task.
Critical Success Factors of New Product Development: Evidence from Select Cases
Authors: Dwivedi Rajeev , Karim Fatma Jaffar , Starešinić Berislava
Published: June 2021

Background: The unique, yet complex, new product development (NPD) process represents one of firms’ most significant operations that impose high weightage onto its profitability margins and market reputation.

Objectives: The object of the research is to identify critical success factors (CSFs) of a new product development in Dubai firms.

Methods/Approach: The paper uses literature as a basis for identifying critical success factors for a new product development, which is supported by a semi-structured interview of senior management-level executives in Dubai.

Results: To pinpoint a set of the most influential CSFs, 12 factors for the NPD process are highlighted, based on their reoccurrence patterns in the literature and semi-structured interviews. Impact levels of 12 CSFs on the NPD process are expressed through a presentation from the highest to the lowest recurrent factor.

Conclusions: Each CSF’s role in driving the NPD process to success has also been justified using real-time evidence, depicted throughout 4 case studies from different industries.
Differences in Slovenian NUTS 3 Regions and Functional Regions by Gender
Authors: Drobne Samo
Published: June 2021

Background: Regions at the level of NUTS 3, which is a system used in the EU for various analyses and statistical reports, can be defined as functional regions in terms of labour markets, education areas, and supply markets.

Objectives: This study analyses the functional regions of Slovenia, differentiated by gender, and their correspondence with the statistical regions at the level of NUTS 3.

Methods/Approach: Functional regions are analysed as labour market areas, which are modelled according to the CURDS method, and evaluated using the fuzzy set approach.

Results: The analysis of functional regions resulted in ten regions for male commuters and fourteen regions for female commuters. Only four of the twelve functional regions for commuters relate to the corresponding statistical regions. Functional region Ljubljana is much larger than the corresponding statistical region, mainly at the expense of neighbouring regions. In recent decades, two new functional regions have been created which are becoming candidates for inclusion in the system of NUTS 3 regions.

Conclusions: A detailed analysis showed that functional region Velenje is becoming an important local labour market and should be included in the system of NUTS 3 regions of Slovenia, while the Central Sava Statistical Region should be removed from it.
The Effect of External Knowledge Sources on Organizational Innovation in Small and Medium Enterprises in Germany
Authors: Basit Shoaib Abdul
Published: June 2021

Background: Firms increasingly depend on external actors for the process of generating innovation. Interaction with these actors might occur through an official collaboration agreement or via external actors as the source of information.

Objectives: Although open innovation has received more attention, still less is known about its effect on organizational innovation. To fill this gap, this study investigates the impact of various external knowledge sources on the willingness of small and mediumsized enterprises to introduce organizational innovation.

Methods/Approach: To achieve the proposed objective, the German Community Innovation Survey conducted in 2017 is used for the econometric analysis.

Results: Different external sources of knowledge are relevant for the introduction of organizational innovation in small firms (customers in the private sector, competitors, conferences, and crowdsourcing) compared to medium-sized firms (customers in the private sector and industry associations).

Conclusions: External knowledge sources are more important for small firms compared to medium firms, and those small firms are more likely to use various sets of external knowledge.
Gender Disparity in Students’ Choices of Information Technology Majors
Authors: Zhang Yu , Gros Tristen , Mao En
Published: June 2021

Background: The gender disparity in the Information Technology (IT) field has persisted over the years. In 2018, only 27.2% of IT workers were women. Once hired, women face more challenges, and they are leaving the field twice as fast as men are. The misconception that women are weak in tech is one of the root causes of gender disparity issues in IT.

Objectives: We examine the gender disparity in students’ choices of IT majors, as well as the decision process of Computer Information Systems (CIS) graduates.

Methods/Approach: We use the United States public universities’ student data from 2010 to 2018. Both the Pooled and the Satterthwaite t-test are used to investigate the gender disparity issue among the students.

Results: Our results support our hypothesis that female students are statistically less likely to choose CIS than their male peers are. An additional analysis of students’ grades in CIS courses shows that female students perform equally well as male students do. We did not find any evidence that it takes longer for female students to get the CIS degree; however, female students did change their majors more often.

Conclusions: Female students tend to avoid IT majors; they often think they may not do well in the courses; however, such an assumption is not true. Our findings provide strategies for university and high school administration to be more proactive in developing recruiting strategies to attract and retain female CIS students.
The Effect of Auditor Rotation on the Relationship between Financial Manipulation and Auditor’s Opinion
Authors: Filipović Ivica , Šušak Toni , Lijić Andrea
Published: June 2021

Background: Since external auditors possess the expertise necessary for detecting manipulations in financial statements, they should also take into account earnings management that could lead to it. In that context, auditor’s independence, which can be affected by auditor’s rotation, is of utmost importance.

Objectives: This paper aims to examine the moderating effect of auditor rotation on the relationship between the extent of financial manipulation and the type of auditor’s opinion for companies listed on the Zagreb Stock Exchange in the Republic of Croatia.

Methods/Approach: A panel analysis with logistic regression is conducted to test the research hypothesis. The sample consists of 210 observations during the three years from 2015 to 2017.

Results: Results show a significant positive relationship between auditor rotation in a current financial year and auditor’s opinion. Furthermore, there is a negative, but the statistically insignificant moderating effect of auditor rotation in a current financial year on the relationship between financial manipulation and auditor’s opinion, as well as the statistically insignificant moderating effect of auditor rotation frequency over five years on the relationship between financial manipulation and auditor’s opinion.

Conclusions: It is not likely that auditors take earnings management into account when generating their opinion on financial statements, and auditor rotation is not proven to be an adequate stimulus in that context.
Freelancing in Croatia: Differences among Regions, Company Sizes, Industries and Markets
Authors: Žunac Ana Globočnik , Zlatić Sanja , Buntak Krešimir
Published: June 2021

Background: Freelancers have a significant impact on economic growth due to their specific skills that are nowadays often used as complements to the regular full-time workforce of a company, not as their competition.

Objectives: The study aims to investigate employers’ attitudes towards the employment of freelancers in Croatia, taking into account the place of establishment, the operational market, the size, and the industry of the organization hiring freelancers.

Methods/Approach: Differences among organizations according to their attitudes towards freelancers are analyzed by multiple 2xc Fisher’s exact tests with the Monte Carlo Simulation, and binomial logistic regression analysis.

Results: Significant differences are found in terms of the operational market and the industry in which the company operates. Besides, the binomial logistic regression analysis identified the following independent constructs as significant predictors of hiring freelancers: the region of the company’s seat, company size, and area of operation.

Conclusions: The national legislation should complement the developmental policies to encourage employment and especially self-employment of freelancers.
Familiarity with Mission and Vision: Impact on Organizational Commitment and Job Satisfaction
Authors: Dobrinić Dunja , Fabac Robert
Published: June 2021

Background: The relationship between organizational mission and vision statements, organizational commitment, and job satisfaction has been discussed vastly in previous research, both in the domain of public sector organizations and in profit organizations.

Objectives: The goal is to investigate if there are differences in organizational commitment and job satisfaction between employees who are familiar with the mission and vision of their organization, compared to those who are not familiar with them.

Methods/Approach: A survey research has been conducted on a sample of 114 employees in private and public sector organizations in the Republic of Croatia. Data were analysed using a t-test to determine the differences between two groups of respondents, i.e. those who are familiar with the visions and mission of their organisation, and those who are not.

Results: There are differences in job satisfaction levels between employees who are familiar with the mission and vision of the organization in which they are employed and those who are not. Furthermore, differences are particularly evident in the group of public sector employees.

Conclusions: The presence of awareness of the organizational mission and vision among employees has a positive effect on their job satisfaction. This is possibly an indicator of the organization’s culture, which fosters positive values embedded in the organizational vision and mission.
Enterprise Digital Divide: Website e-Commerce Functionalities among European Union Enterprises
Authors: Jaković Božidar , Ćurlin Tamara , Miloloža Ivan
Published: June 2021

Background: Information and communication technologies (ICTs) gained prevalent organizational and structural value in the modern economy. E-commerce is one of the sectors directly influenced by technological change. However, not all countries have the same opportunities to develop e-commerce growth; there are significant discrepancies in ICT utilization worldwide, known as the digital divide.

Objectives: The purpose of this paper is to explore the level of difference among European countries regarding the e-commerce functionalities in their enterprises using a cluster analysis.

Methods/Approach: To accomplish the paper goal, the k-means cluster analysis was conducted on the Eurostat data from 2019. Enterprises from 28 European countries were taken into consideration. The Kruskal-Wallis test is used to explore if the differences among clusters regarding the digital development, measured by the Digital Economy and Society Index are significant.

Results: The investigation confirmed that there are significant differences among European countries regarding the development of e-commerce. However, a similar level of e-commerce is not related to economic and digital development.

Conclusions: Since the relationship between economic development and e-commerce development in European countries is not linear, country-level policies are likely to be significant factors driving e-commerce development, which leads to the need for further investigation of this issue.
The Proportion for Splitting Data into Training and Test Set for the Bootstrap in Classification Problems
Authors: Vrigazova Borislava
Published: June 2021

Background: The bootstrap can be alternative to cross-validation as a training/test set splitting method since it minimizes the computing time in classification problems in comparison to the tenfold cross-validation.

Objectives: Тhis research investigates what proportion should be used to split the dataset into the training and the testing set so that the bootstrap might be competitive in terms of accuracy to other resampling methods.

Methods/Approach: Different train/test split proportions are used with the following resampling methods: the bootstrap, the leave-one-out cross-validation, the tenfold cross-validation, and the random repeated train/test split to test their performance on several classification methods. The classification methods used include the logistic regression, the decision tree, and the k-nearest neighbours.

Results: The findings suggest that using a different structure of the test set (e.g. 30/70, 20/80) can further optimize the performance of the bootstrap when applied to the logistic regression and the decision tree. For the k-nearest neighbour, the tenfold cross-validation with a 70/30 train/test splitting ratio is recommended.

Conclusions: Depending on the characteristics and the preliminary transformations of the variables, the bootstrap can improve the accuracy of the classification problem.
The Kantian ethical perspective seen from the existential philosophy of Søren Kierkegaard’s Victor Eremita
Authors: Martín José García , Rojas Arturo Morales , Králik Roman
Published: June 2021

This article compares two groundings of ethics: the ethical postulates of Immanuel Kant with the existential thinking of S. Kierkegaard. To achieve this goal, first, it proposes highlighting the fundamental ideas of Kantian ethics; then, secondly, highlighting Kierkegaard’s ethical stance; and finally, contrasting both approaches to identify differences and similarities. Conclusively, we can say that the pure Kantian ethical formality of duty for duty’s sake necessarily dispenses with existential and concrete content; it is an ethics that is grounded in itself, that refers to itself, to the rational nature of the human being and its universality. In contrast, Kierkegaardian ethics is a Christian ethics, it is the ethics of love for one’s neighbour and, above all, for God; it is a relational and existential ethics of the single individual.
Leibniz’s and Herder’s philosophy of optimism
Authors: Gluchman Vasil
Published: June 2021

The author studies Leibniz’s views of vindicating God for the existence of evil in the world, as well as the idea of the best of all possible worlds, including the past and present criticism. Following Leibniz, he opted for the presentation of Herder’s philosophy of history as one of the most significant forms of philosophical optimism that influenced the first half of the 19th century, including contemporary debates on and critiques of the topic. He defines Herder’s concept as the philosophy of historical progress, which also significantly influenced Slovak philosophy of the given period. The main goal of the article is to present Leibniz’s and Herder’s views as a starting point for the Slovak philosophy of optimism and historical progress of the 18th century and the first half of the 19th century.
Good life and good death in the Socratic literature of the fourth century BCE
Authors: Suvák Vladislav
Published: June 2021

The paper outlines several forms of ethical attitude to good life and good death in the Socratic literature of the fourth century BCE. A model for the Socratic discussions could be found in Herodotus’ story about the meeting between Croesus and Solon. Within their conversation, Solon shows the king of Lydia that death is a place from which the life of each man can be seen as the completed whole. In his Phaedo, Plato depicts Socrates’ last day before his death in a similar spirit, as the completion of his beautiful life. However, there is no consensus regarding opinions on death among the Socratics. The final part of the paper outlines various meanings of death in the writings of the first generation of the Socratic authors, which arise from different attitudes that the individual philosophers hold regarding the soul as well as other topics. This part puts the principal emphasis on Aristippus, who is considered as the most controversial figure of the Socratic movement. Aristippus makes an interesting opposite to Plato concerning death, since he associates the philosopher’s endeavour for a good life solely with that which is here and now.
Aligning Corporate Social Responsibility with the United Nations’ Sustainability Goals: Trickier than it Seems?
Authors: Thörnqvist Christer , Kilstam Jonna
Published: June 2021

This article explores the profound mismatch between the United Nations 2030 Agenda for Sustainable Development and fundamentals for Corporate Social Responsibility (CSR). The common survival of human life, society, and the global order as we know it, and the need for companies to make profit is not easy. The intractability of the problem is often underestimated in public as well as scientific debate. This article discusses the problem and possible ways to cope with it through ‘social entrepreneurship’ illustrated here by a study of nine firms in Sweden. The study draws on an amalgamation of Schumpeterian theory about “creative destruction” and the concept of “Emerging Davids vs. Greening Goliaths.”
Churn prepaid customers classified by HyperOpt techniques
Authors: Dumitrache Andreea , Melian Denisa , Bălăcian Delia , Nastu Alexandra , Stancu Stelian
Published: June 2021

The telecommunications industry is representative when it comes to a country’s economy. In this industry, the customer plays a very important role in maintaining a stable income. The churn customer is one of the most important concerns for large companies. This increased attention is due to its direct effect on the revenues of large companies in the telecommunications industry, companies being in a constant search to develop ways to predict this type of customer. The aim of our paper is to identify potential customers at risk of churn using modern data mining techniques, often used in the business world. From the nine techniques tested, we choose as the churn prediction model, the technique with the highest performance. The effectiveness of the model is tested and evaluated by the f1-score. The model developed in the paper uses machine learning techniques on the Python platform, exploring a wide range of algorithms from logistic regression and the method of balancing the analyzed data set (Balanced Random Forest) to supervised learning methods (K-Nearest Neighbors, Naive Bayes) and optimization packages (Ligh GBM, CATBoost, ADABoost, RUSBoost, Stochastic Gradient Descent). The techniques analyzed in this paper cover a diverse range of methods that are compared in terms of performance. RUSBoost proves to be the best churn prediction model for telecom customers in this study. RUSBoost has the lowest loss function of all the tested techniques.
Optimal Location of Distribution Site Based on Distance
Authors: Kubáňová Jaroslava , Kubasáková Iveta
Published: June 2021

For most companies, successful business operation is based on the location at the right place, in the right region, on the right plot. New investments in land, buildings and material handling equipment are carried out for the longer term. As the global business environment in which a company needs to decide on location is becoming more uncertain every day, it is of huge importance to make a thoughtful and ‘future-proof’ decision on the location for a new distribution site. Allocation can also be defined as a process that results in finding a position for a warehouse, company, production, people, things, and activities in a specific area. A newly built distribution site is impossible to be moved in a short period of time, so the decision on where to build a distribution site, warehouse, or manufacturing plant is of vital and strategic importance.
Bio-economic production potentiality of Solanum lycopersicum under smart agroforestry practice
Authors: Amin Md. Hafiz All , Akter Most. Mottakina , Biswas Arup Kumar , Parvej Md. Masud Rana , Rayhan Sarkar Mohammad
Published: June 2021

Food security and maximum land use system are the priorities of crop production technique in the present global food growing environment. The tomato-Albizia lebbck agroforestry is an effective smart production approach. The aim of this research is to find out the appropriate combination of organic mulch leads the tomato Albizia lebbck agroforestry production as compared to sole cropping technique for growth, yield, and quality that brings health hygiene for fresh and cooked consumption. The experiment was laid out following two factors split plot design with three (3) replications. Tomato in open field (T0) and tomato under Albizia lebbeck woodlot agroforestry system (T1) were arranged in main plots. Conversely, the usage of organic mulches was set in sub-plots viz. M0= No mulch, M1= Ash mulch, M2= Saw dust mulch, and M3= Water hyacinth mulch. The results indicated the highest yield (32.65 t/ha) was found in water hyacinth mulch (M3) and the lowest yield (21.37 t/ha) was detected in M0 without mulch (control). The treatment M3 (water hyacinth mulch) gave the maximum sugar-acid ratio (12.04%) and minimum sugar-acid ratio (9.42%) was found in control (no mulch). Furthermore, the result showed the production potentiality was the highest yield (29.41 t ha-1) was found in tomato- Albizia lebbeck agroforestry (T1) and the lowest yield (25.95 t ha-1) was recorded in sole cropping of tomato (T0). The maximum sugar-acid ratio (11.37%) was found in tomato- Albizia lebbeck agroforestry (T1) and the minimum sugar-acid ratio (10.31%) was found in sole cropping of tomato (T0). On the other, the combined effect tomato- Albizia lebbeck agroforestry with water hyacinth mulch gave the highest yield (35.01 while, the lowest yield (22.47 t ha-1) was observed in sole cropping of tomato without mulch. The research finding also revealed the maximum benefit-cost ratio (4.94) was found from the tomato- Albizia lebbeck agroforestry which was 20 % higher than tomato was grown in sole cropping. Finally, the tomato- Albizia lebbeck agroforestry production in association with organic hyacinth mulch can be an effective production approach for maximum return in terms of yield, quality and money.
Analysis of volatile compounds from three species of Atractylodes by Gas Chromatography-Mass Spectrometry
Authors: Piao Jin , Lim Soon Sung , Kim Haeng Hoon , Lee Sook Young , Park Sang Un
Published: June 2021

A total of 99 different volatile compounds were detected through Gas Chromatography-Mass Spectrometry (GC-MS) from three species of Atractylodes, namely Atractylodes lancea, Atractylodes japonica, and Atractylodes chinensis. Thirteen-volatile flavor compounds i.e., acid, alcohol, aldehyde, alkane, alkene, alkyne, ester, ketone, monoterpene, oxygenated monoterpene, sesquiterpene, oxygenated sesquiterpene, and oxygenated triterpenoid detected from different species of Atractylodes. It was observed that all the species contained 38 common compounds, while A. lancea contained 7 unique compounds, A. japonica has 4 unique compounds, and A. chinensis hold 6 compounds not detected in the other extracts. In addition, essential oils from A. lancea and A. japonica possessed 11 compounds in common, and A. lancea and A. chinensis possessed 19 compounds in common. The remaining 14 compounds were detected only in A. japonica and A. chinensis. The total content of all components in the species was comparable, with 82.528%, 81.766%, and 81.799% of volatile components being detected for A. lancea, A. japonica, and A. chinensis, respectively. Curzerene was found to be the most predominant compound in both A. lancea (14.1%) and A. chinensis (16.7%), while murolan-3,9(11)-diene-10-peroxy was found predominantly in A. japonica (16.8%). The present study suggests that the identified volatile compounds may possess important biological properties, and could be suitable for application in both oriental medicines and the pharmaceutical industry.
Some nutritional properties of Taiwan Napier grass leaves (Pennisetum purpureum) harvested at different time
Authors: Malahubban Masnindah , Jalil Nur Zahirah Abd , Zakry Fitri Ab Aziz , Kamaludeen Juriah , Hassan Mohammad Nasir , Saupi Noorasmah
Published: June 2021

The effect of different harvesting time on Napier grass's nutrient composition (Pennisetum purpureum) leaves was investigated. Taiwan Napier grass grown under field conditions were harvested at day-15, 30, 45, 60, 75, and 90 after planting. The leaves samples subjected for analyses on dry matter, moisture, ash, crude fibre, crude fat, crude protein and acid detergent fibre, and the data expressed as a percentage. The present study found that the different harvesting time had changed all nutrients composition, except, crude protein where no variation in crude protein during any harvesting time observed. The present study recommends harvesting time for Taiwan Napier grass between 45 and 60 days after planting was the best. This finding is useful as baseline data that provides information on Taiwan Napier's nutritional composition grown at a particular cropping site. It helps plan and strategy for new planting activity, especially when determining the best time for harvesting.
Penyuluhan Hukum Pemungutan Pajak Penghasilan (PPh) Usaha Mikro Kecil dan Menengah di Kecamatan Semarang Selatan
Authors: Purnawan Amin , Khisni Akhmad , Adillah Siti Ummu
Published: June 2021

Pengabdian masyarakat berupa penyuluhan hukum pelaksanaan pemungutan pajak penghasilan UMKM di Kota Semarang ini penting, karena diharapkan dapat meningkatkan pengetahuan dan kesadaran hukum pajak para pelaku UMKM. Aspek perpajakan yang memperhatikan kepentingan dunia usaha (business friendly) perlu dijadikan paradigma baru. Dengan adanya globalisasi dan kebijakan perubahan struktural, UMKM semakin diperlukan. Peran negara adalah menyediakan kerangka regulasi yang efektif beserta mekanisme pengawasan dan penegakan.  Latar belakang pengabdian masyarakat ini didasarkan pada kenyataan tentang tingkat ketaatan Usaha Mikro, Kecil, dan Menengah  (UMKM) dalam memenuhi kewajiban perpajakan masih sangat rendah. Kontribusi UMKM terhadap penerimaan pajak sangat kecil, yaitu kurang lebih 0.5% dari total penerimaan pajak. UMKM merupakan sektor ekonomi yang mempunyai peran cukup besar dalam perekenomian nasional. Berdasarkan data Produksi Domestik Bruto (PDB) tahun 2017, UMKM mempunyai kontribusi kurang lebih 57% total PDB. Namun demikian apabila dibandingkan dengan kontribusi UMKM terhadap penerimaan pajak, terdapat miss-match. Kegiatan pengabdian masyarakat bekerja sama dengan Kecamatan Semarang Selatan Kota Semarang. Mitra memiliki peran yang cukup kuat dalam menggerakkan pelaku UMKM di wilayahnya. Solusi yang ditawarkan adalah pembentukan kelompok kader sadar pajak sebagai model dan memberikan sosialisasi dan pendampingan pembayaran pajak penghasilan bagi pelaku UMKM. Solusi hasil yang disepakati, yaitu meningkatnya pengetahuan dan pemahaman tentang pembayaran pajak penghasilan UMKM., serta kemauan untuk membayar kewajiban pajak UMKM. Luaran yang dihasilkan, yaitu kader sadar pajak UMKM, dapat melakukan sosialisasi dan pendampingan untuk menjadi wajib pajak UMKM yang patuh dan sukarela.
STEREOTIP KEHIDUPAN WARIA DALAM NOVEL RUMAH ILALANG KARYA STEBBY JULIONATAN
Authors: Sugiarto Agus Syaiputra , Andalas Eggy Fajar
Published: June 2021

ABSTRAK: Penelitian ini bertujuan mengetahui Stereotip yang melekat pada kehidupan waria dalam novel Rumah Ilalang karya Stebby Julionatan. Stereotip yang dimaksud adalah gambaran atau cerminan kehidupan waria yang terjadi pada lingkungan masyarakat dalam karya sastra. Jenis penelitian ini adalah penelitian deskriptif-kualitatif dengan pendekatan Sosiologi Sastra. Sumber penelitian ini berasal dari novel Rumah Ilalang karya Stebby Julionatan. Data penelitian ini berupa kutipan, kalimat, dan paragraf yang berupa gambaran atau cerminan kehidupan waria. Teknik pengumpulan data dilakukan dengan metode membaca Novel dan mengidentifikasikan konteks permasalahan yang akan diteliti. Teknik analisis data menggunakan model Miles dan Humberman melalui langkah-langkah (1) penyeleksian data, (2) pemaparan data, dan (3) penarikan kesimpulan. Hasil memperlihatkan waria direpresentasikan dalam tiga aspek, yaitu (1) tidak beragama, (2) tidak memiliki pekerjaan yang tetap, (3) tidak diterima dengan baik oleh masyarakat.KATA KUNCI: novel rumah ilalang; stereotip; waria STEREOTYPES OF TRANSVESTITE LIFE IN RUMAH ILALANG BY STEBBY JULIONATAN ABSTRACT: This study aims to determine the stereotypes inherent in transvestite life in the Rumah Ilalang by Stebby Julionatan. This stereotype is a picture or reflection of transvestite life that occurs in the community environment in literary works in the form of novels. This type of research is descriptive-qualitative research with a sociological approach to literature. The source of this research is Rumah Ilalang by Stebby Julionatan. This research datas are the form of quotes, sentences, and paragraphs in the form of a picture or reflection of the life of transvestites. Data collection techniques are done by reading novels and identifying the context of the problem to be studied. The data analysis technique used in this study is the data analysis design presented by Miles and Humberman through the steps (1) selecting data, (2) disclosing data, and (3) drawing conclusions. The result show transgenders were represented in three aspects, namely (1) not having religion, (2) not having a permanent job, (3) not being well received by the community.KEYWORDS: rumah ilalang novels; stereotypes; transvestite
PENGGUNAAN MEDIA KADO ILMU DALAM MENINGKATKAN KEMAMPUAN MENULIS CERPEN PADA PESERTA DIDIK
Authors: Weleng Maria , Owon Robertus Adi Soerjono , Bura Bernadus
Published: June 2021

ABSTRAK: Penelitian ini bertujuan untuk mengangkat masalah mengenai penggunaan media kado ilmu dalam meningkatkan kemampuan menulis cerpen pada peserta didik. Penelitian ini merupakan salah satu jenis penelitian tindakan Kelas (PTK). Penelitian ini menggunakan metode deskriptif kualitataif yaitu pengumpulan data berupa data yang ditemukan pada saat melakukan penelitian dengan menggunakan media kadoilmu pada pesertadidik. Teknik yang dipakai dalam penelitian ini yaitu teknik non tes berupa observasi (pengamatan) terhadap peserta didik dan pendidik, dan teknik tes berupa hasil pekerjaan peserta didik yang di lakukan untuk mengetahui presentase ketuntasan hasilbelajar peserta didik. Teknik analisis data yaitu data hasil pekerjaan peserta didik yang dianalisis dengan cara membaca, memeriksa, dan menilai. Sehingga berdasarkan hasil penelitian tersebut disimpulkan bahwa pembelajaran dengan menggunakan media kado ilmu dapat meningkatkan kemampuan peserta didik dalam menuli scerpen, yakni dengan adanya ketuntasan belajar peserta didik pada siklus 1 yang tuntas 8 orang atau 28,57%, yang tidak tuntas 20 orang atau 71,43% sedangkan pada siklus II jumlahpeserta didik yang tuntasmeningkat menjadi 27 orang atau 96,42%, dengan 1 orang atau 4,00% yang menunjukan tidak tuntas.KATA KUNCI: Media Kadoilmu,Cerpen,Pesertadidik.  THE USE OF SCIENTIFIC MEDIA MEDIA IN IMPROVING THE WRITING ABILITY OF STUDENTS IN EDUCATION ABSTRACT: This study aims to raise the issue of the use of science gift media in improving short story writing skills in students. This research is one type of Classroom Action Research (CAR). This research uses descriptive qualitative method that is data collection in the form of data found at the time of conducting research using gift items on students. The techniques used in this study are non-test techniques in the form of observations (observers) of students and educators, and test techniques in the form of student work done to determine the percentage of completeness of student learning outcomes. Data analysis technique is the data of students' work which is analyzed by reading, checking, and assessing. So based on the results of the study it was concluded that learning by using science gift media can improve the ability of students in writing scerpenes, namely by completing the learning of students in cycle 1 which is complete 8 people or 28.57%, which is not completed 20 people or 71, 43% while in the second cycle the number of students who completed completed increased to 27 people or 96.42%, with 1 person or 4.00% who showed incomplete.KEYWORDS: Kadoilmu Media, Short Stories, Islamic Education Participants