bluuebunny/crossref_metadata_2025_split huggingface dataset:
PENGARUH MODEL PEMBELAJARAN KONTEKSTUAL TERHADAP HASIL BELAJAR IPS DAN KESADARAN LINGKUNGAN SISWA KELAS VII SMP NEGERI 1 PETANG KABUPATEN BADUNG
Authors: Paramaweda I Dewa Gede , Sriartha I Putu , Kertih I Wayan 
Published: October 2019

Penelitian ini bertujuan untuk mengetahui pengaruh beberapa variabel yaitu (1) hasil belajar IPS dan kesadaran lingkungan siswa secara simultan, antara kelompok siswa yang mengikuti model pembelajaran kontekstual dan model pembelajaran konvensional, (2) hasil belajar IPS antara kelompok siswa yang mengikuti model pembelajaran kontekstual dan model pemebelajaran konvensional, (3) kesadaran lingkungan antara kelompok siswa yang mengikuti model pembelajaran kontekstual dan model pemebelajaran konvensional. Populasi dalam penelitian ini adalah seluruh siswa kelas VII SMP Negeri 1 Petang Kabupaten Badung tahun ajaran 2017/2018 yang berjumlah 190 orang. Sample dalam penelitian ini menggunakan teknik class random sampling, yang mengambil sampledua kelompok siswa yaitu kelas VII A sebagai kelas kontrol dan kelas VII C sebagai kelas eksperiment. penelitian ini mengikuti rancangan eksperimen the post test only control group design. Data dalam penelitian ini dikumpulkan dengan menggunakan test pada variabel hasil belajar IPS dan kuesioner pada variabel kesadaran lingkungan. Data dianalisis dengan teknik manova satu jalur. Hasil penelitian menunjukkan bahwa: (1) secara simultan terdapat perbedaan hasil belajar IPS dan kesadaran lingkungan antara siswa yang mengikuti model pembelajaran kontekstual dengan siswa yang mengikuti model pembelajaran konvensional, (2) terdapat perbedaan hasil belajar IPS yang signifikan antara siswa yang mengikuti model pembelajaran kontekstual dengan siswa yang mengikuti model pembelajaran konvensional, (3) terdapat perbedaan kesadaran lingkungan yang signifikan antara siswa yang mengikuti model pembelajaran kontekstual dengan siswa yang mengikuti model pembelajaran konvensional. Berdasarkan ketiga temuan tersebut dapat disimpulkan bahwa model pembelajaran kontekstual lebih baik dibandingkan model pembelajaran konvensional dalam peningkatan hasil belajar IPS dan kesadaran lingkungan siswa. Kata kunci: model pembelajaran kontekstual, hasil belajar IPS, kesadaran lingkungan.
PSEUDO-SLANT SUBMANIFOLD IN KENMOTSU SPACE FORMS
Authors: Dirik Suleyman , Atceken Mehmet , Yildirim Umit 
Published: October 2019

In this paper, we study geometry of the pseudo-slant submanifold of a Kenmotsu space form. Necessary and suffcient conditions are given for a submanifold to be a pseudo-slant submanifold in Kenmotsu manifolds. Finally, we give some results for totally umbilical pseudo-slant submanifold in a Kenmotsu manifold and Kenmotsu space form.
MATHEMATICAL ANALYSIS OF THE ROLE OF DETECTION RATE IN THE DYNAMICAL SPREAD OF HIV-TB CO-INFECTION
Authors: Adewale SUNDAY OLUMUYIWA , Olopade I.A , Mohammed I.T , Ajao S.O , Oyedemi O.T 
Published: October 2019

Human Immunodeficiency Virus (HIV) co-existing with Tuberculosis (TB) in individuals remains a major global health challenges, with an estimated 1.4 million patients worldwide. These two diseases are enormous public health burden, and unfortunately, not much has been done in terms of modeling the dynamics of HIV-TB co-infection at a population level. We formulated new fifteen (15) compartmental models to gain more insight into the effect of treatment and detection of infected undetected individuals on the dynamical spread of HIV- TB co-infection. Sub models of HIV and TB only were considered first, followed by the full HIV-TB co-infection model. Existence and uniqueness of HIV and TB only model were analyzed quantitatively, and we shown that HIV model only and TB only model have solutions, moreover, the solutions are unique. Stability of HIV model only, TB model only and full model of HIV-TB co-infection were analyzed for the existence of the disease free and endemic equilibrium points. Basic reproduction number () was analyzed, using next generation matrix method (NGM), and it has been shown that the disease free equilibrium point is locally asymptotically stable whenever and unstable whenever this threshold exceeds unity. i.e., Numerical simulation was carried out by maple software using differential transformation method, to show the effect of treatment and detection of infected undetected individuals on the dynamical spread of HIV-TB co-infection. Significantly, all the results obtained from this research show the importance of treatment and detection of infected undetected individuals on the dynamical spread of HIV-TB co-infection. Detection rate of infected undetected individuals reduce the spread of HIV-TB co-infections.
The Economic and Social Dilemmas of Management Focused on the Future of Retail Branches of Commercial Banks in Poland
Authors: Wanat Leszek , Klus Sylwia , Mikołajczak Elżbieta 
Published: October 2019

Abstract
The problem of leadership and human resource management in commercial banks is a challenge to the growing dominance of e-commerce businesses. Scientific discussions are invariably focused on pro-competitive activities, however, the economic efficiency of which is not always sufficient. In this paper the authors attempt to identify economic and social factors leading to the future and development of retail branches of commercial banks in Poland. The research was carried out by the means of a diagnostic survey in retail branches of selected commercial banks.
Lean Concept in Metal Enterprises - Verification of Benefits
Authors: Daroń Marta , Górska Monika 
Published: October 2019

Abstract
In this paper there were presented some issues connected with Lean concept in improving of production processes. The research was conducted on the example of production enterprises that function in metal industry. The enterprises for the research were chosen purposefully, because of two reasons - the possibility to obtain information on the researched area and the assumption that these enterprises use the lean concept instruments. The questionnaire was the research tool. The goal of the research was to examine, what are the most expected advantages from implementing of lean concept methods, and what were the real advantages, that occurred in production system of researched enterprises. The authors presented the quantitative results of the study and carried out an analysis of the response in the form of a matrix. The developed matrix extended the knowledge about the distribution of observed benefits. It enables to indicate which advantages occurred in the enterprises expecting and not expecting some benefits.
Interpretive Structural Modeling of Identified Success Factors to Lean Implementation in SMEs
Authors: Shrimali Arvind Kumar 
Published: October 2019

Abstract
Lean practices are implemented in manufacturing enterprises to find hidden waste and attain continuous improvement. Various enterprises have experienced benefits owing to the Lean implementation. Following the use of appropriate lean instruments and techniques, there are many factors that affect successful lean implementation process. Researchers have identified a large number of these success factors to implementation of Lean. Understanding these enablers and the interactions between them can be crucial to the success of lean implementation. Interpretive Structural Modeling (ISM) is one of the established methodologies to bring forward the interrelationships among parameters of an issue or a problem. The purpose of this paper is to create the hierarchy of the various success factors to Lean Implementation according to their importance using the approach of ISM to facilitate Small and Medium enterprises (SMEs) across India.
Industry 4.0 as a Response to Contemporary Strategic Challengespaper
Authors: Puto Agnieszka 
Published: October 2019

Abstract
The world economy is on the verge of technological revolution which is profoundly changing the way of the operation of enterprises. The signpost of the transformation of the world industry is the vision of Industry 4.0, which is a response to contemporary challenges and gives grounds for creating significant competitive advantages of modern enterprises. In the paper, the author attempts to respond to the question concerning what Industry 4.0 is, what opportunities it provides and what challenges it poses. The objective of the paper will be to describe the case study of the enterprise predisposing to the implementation of revolutionary changes associated with the concept of Industry 4.0.
Maintaining the Appropriate Level of Quality in the Aspect of Machinery and Equipment Safety in Food Industry
Authors: Kielesińska Agata , Pristavka Miroslav 
Published: October 2019

Abstract
In the paper, the problem and importance of maintaining an appropriate level of quality in relation to labor protection in the light of EU and national legal standards have been presented. Maintenance of machines and, consequently, stability in the field of process quality is identified on the basis of specific management requirements according the machinery safety in food industry, also with respect to the sphere of their construction, production, distribution, and in particular exploitation. The food industry on global markets is characterized by a large variety of consumers. Therefore, both needs and requirements can have a very wide range, also with regard to quality criteria, care for the natural environment, development of technologies as well as new products introduction. Trends defining dynamics and competition in the food industry include a large number of factors, that require effective management, e.g.: quality ingredients of foodstuffs, preparation of products, maximum product safety as a measure of quality, application of modern production technologies (fast filling and packaging installations). Care for the safety of machinery and equipment used in industry and food processing is a guarantee of manufacturing products of the highest nutritional quality for consumers. With regard to ensuring the safety and quality of food products, in the paper the general principles in risk assessment and the technical measures to improve the safety of machines during their use have been presented.
Personnel Function Audit as a Quality-Promoting Tool in Human Resource Management in a Local Government Unit
Authors: Przewoźna-Krzemińska Agata 
Published: October 2019

Abstract
With progressive globalization, changes in the business environment and growing competition, modern companies have been facing challenges and the need for anticipating changes and new threats in the market. Consequently, enterprises operating in a situation of uncertainty are forced to analyze everything that is happening both outside and inside the organization in detail. Managers should pay attention to the atmosphere in the enterprise, communication, cooperation, motivation, etc. The ability of the organization to utilize and manage human resources rationally in order to improve the effectiveness and quality of work is critical. New challenges in the organization, diversity of activities, implementation of new or appropriate rebuilding of old methods (functions) can be ensured by their audit, especially HR audit, whose task is to examine all issues related to the implementation of the personnel function. The aim of this paper is to discuss an audit of personnel functions conducted in a local government unit and to present guidelines, effects and results aimed at improving work and its quality. The paper has a theoretical and empirical character.
The Impact of the Melting and Pouring Process on the Quality of the Biggest Rocking Bell Called Vox Patris
Authors: Bartocha Dariusz , Baron Czesław 
Published: October 2019

Abstract
The paper describes the process of melting, metalworking and pouring the form of the world's largest 55-ton rocking bell called Vox Patris. The project was carried out by Pracownia Ludwisarska of Jan Felczyński from Przemyśl in cooperation with Rduch Bells & Clocks from Czernica and Metalodlew SA from Kraków. Comprehensive scientific and technical support of the project was provided by the Department of Foundry of the Silesian University of Technology. The bell is made of bronze, which is an alloy of copper and tin with a content of tin at the level of 20%. The foundry, where the melting and pouring process took place, had two 14 ton electric furnaces, 15 ton transport pouring ladle and a 60 ton collection ladle. Therefore, it was necessary to determine the minimum temperature of the pouring and the conditions for holding the liquid metal so that the metal from the first cast would not solidify before accumulating its total amount (four melts) (Bartocha and Baron, 2015; Bartocha and Baron, 2016). The study presents the tests of alloy properties and a series of computer simulations. Thanks to them the maximum and minimum permissible temperature of metal overheating has been determined (Bartocha, 2017). The final stage of the cast was the mold pouring process. The filling system was responsible for the correct performance of this process. This system comprised a tank (collector) under a doublestopper 60-ton main ladle, an eleven-meter tapping spout, an infusion tank and a downgate. The task of the gating system is uniform and continuous supply of liquid metal to the mold until it is completely filled. The unusual layout, that was used, required checking many factors. Various configurations of the system parameters have been tested based on the series of computer simulations (Czochlarski and Bukowski, 1935; Ignaszak, 1999).
Determination of Accuracy and Reliability of Portable Hardness Testers
Authors: Vaško Alan , Sovík Ján , Krynke Marek 
Published: October 2019

Abstract
The paper is focused on determination of the accuracy and reliability of static and dynamic (portable) hardness testers. The paper deals with the measurement of hardness of calibration hardness plates by 4 different methods (Brinell, Vickers, Rockwell and Leeb) with using 5 different hardness testers (3 static and 2 portable). The hardness values measured by the different hardness testers were compared to the reference hardness listed in the calibration hardness plates and consequently, the accuracy of these measurements was evaluated. The aim of the work has been to determine the accuracy and reliability of portable hardness testers in comparison with static hardness testers.
Quality Improvement of a Safety Valve with the Use of Numerical and Experimental Studies
Authors: Filo Grzegorz , Domagała Mariusz , Lempa Paweł , Fabiś-Domagała Joanna , Kwiatkowski Dominik , Momeni Hassan 
Published: October 2019

Abstract
This article presents results of numerical modelling, simulation and test bench experiments of a hydraulic direct-acting relief valve was used as a safety valve. The analyzed safety valve was placed in a system consisting of a fixed-speed pump, a control valve, a hydraulic cylinder as an actuator and a second pressure valve in the load line used as a payload generator for the cylinder. In the first step mathematical model of the system was formulated in the form of a system of ordinary differential equations. Next, simulation model was created in Matlab/Simulink. Simulations were carried out for different values of the actuator payload. The obtained results include time series of pressure, flow rate and displacement of the actuator piston. In order to confirm simulation results, a test bench was built and series of experiments were carried out. High compliance of simulation and laboratory results was obtained. It was confirmed that the proposed solution with the relief valve used as a safety valve fulfills its task of protecting the hydraulic system from excessive pressure increase.
Quality Improvement of a Gear Transmission by Means of Genetic Algorithm
Authors: Lempa Paweł , Lisowski Edward , Masui Fumito , Filo Grzegorz , Ptaszynski Michal , Domagała Mariusz , Fabiś-Domagała Joanna 
Published: October 2019

Abstract
The article deals with the issue of quality improvement of a gear transmission by optimizing its geometry with the use of genetic algorithms. The optimization method is focused on increasing productivity and efficiency of the pump and reducing its pulsation. The best results are tested on mathematical model and automatically modelled in 3D be means of PTC Creo Software. The developed solution proved to be an effective tool in the search for better results, which greatly improved parameters of pump especially reduced flow pulsation.
Machine Learning Versus Human-Developed Algorithms in Image Analysis of Microstructures
Authors: Piwowarczyk Adam , Wojnar Leszek 
Published: October 2019

Abstract
Automatic image analysis is nowadays a standard method in quality control of metallic materials, especially in grain size, graphite shape and non-metallic content evaluation. Automatically prepared solutions, based on machine learning, constitute an effective and sufficiently precise tool for classification. Human-developed algorithms, on the other hand, require much more experience in preparation, but allow better control of factors affecting the final result. Both attempts were described and compared.
Corrosion Effect of 65% Nitrate Acid on X4CrNi1812 at 333 K
Authors: Lipiński Tomasz , Karpisz Dariusz 
Published: October 2019

Abstract
Austenitic stainless steels are often used for a materials in the construction of machines and equipment for agricultural and for industrial construction. One of the most important factors constructional material is corrosion resistance. Equipment with austenitic stainless steel can be easy join by quickly welding at a not to high construction price, but one with the serious problem in aggressive environment is their corrosion resistance.
A few corrosion processes in crevices and awkward corners can be avoided at the design stage (low roughness parameters, round-section and other). But still the construction material is exposed to corrosion. These steels often come into contact with an aggressive environment based on nitric acid.
The main aim of this research is to investigate corrosion resistance in different time (48, 96, 144, 192, 240, 288, 336 hours). For this used weight loss of test samples and its profile roughness. The research was conducted on austenitic stainless steel in grade in Nitrate acid at 333 K.
Corrosion tests confirmed that the research this steel in 65% nitrate acid as a corrosive environments is characterized through proportionate to time corrosion process whose measure may be surface roughness. In industrial practice roughness parameters for all the research times can be used for determine the stage and size of steel corrosion.
Evaluation of the Possibility of Using Methane from CNG by Potential Motor Vehicle Users
Authors: Górniak Adam , Midor Katarzyna , Jan Kaźmierczak 
Published: October 2019

Abstract
Today’s world is facing the necessity of reducing air pollution. One of the alternatives is to limit pollution related to road transport by using CNG fuel.
The European Union is imposing increasingly strict requirements regarding the cleanness of car fumes, and the Polish government is endeavouring to take actions aimed at reducing the pollution related to car use by planning the development of transport electromobility. In this article, the authors want to draw attention to methane as an alternative to traditional fuels.
The article presents the results of a survey conducted among drivers, which regarded their readiness to use CNG-powered cars. The results indicate that while respondents appreciate the ecological value of this fuel, they are also worried about safety, which is contradicted by the analysis of CNG advantages and disadvantages.
Preliminary Study of Time Banking Participation
Authors: Sasananan Montalee , Channarong Khanothai , Kingnakhonthong Sasikanda 
Published: October 2019

Abstract
Thailand will be entering full-scale aging society in 2021, when 20 % of population will be over sixty years old. This will cause significant societal changes, and it is very important that the country is prepared to deal with problems that may arise from aging society. Unfortunately substantial number of senior citizens are financially unprepared for retirement due to low financial literacy. An effective social welfare system is needed, which will require a large amount of financial support. An interesting approach to delivering social welfare is co-production which is a practice that involves public services and communities in the mutual deliveries of welfares. Time banking is an engagement practice which each member agrees to give and take credits for service. Time credits can be earned by providing services to those in need. Such system is a kind of co-production which can help build community relationship and complement social welfare system. Time banking can be applied to all generations, and it is especially suitable for aging society. This paper explores the interests in joining time banking among people living in Bangkok and vicinity. It investigates the respondents’ lifestyles, interests in joining time bank, and possible matching of interests. The results reveal existing gaps and may be used in further study for establishing time banking system.
Marine tetrodotoxin as a risk for human health
Authors: Madejska Anna , Michalski Mirosław , Osek Jacek 
Published: October 2019

Abstract
Tetrodotoxin (TTX) is a toxin mainly occurring naturally in contaminated puffer fish, which are a culinary delicacy in Japan. It is also detected in various marine organisms like globefish, starfish, sunfish, stars, frogs, crabs, snails, Australian blue-ringed octopuses, and bivalve molluscs. TTX is produced by marine bacteria that are consumed mainly by fish of the Tetraodontidae family and other aquatic animals. TTX poisoning through consuming marine snails has recently begun to occur over a wider geographical extent through Taiwan, China, and Europe. This neurotoxin causes food intoxication and poses an acute risk to public health. The aim of this review is to present the most recent information about TTX and its analogues with particular regard to toxicity, methods of analysis, and risk to humans of exposure.