bluuebunny/crossref_metadata_2025 huggingface dataset:
Risk factors for potential drug-drug interactions in a general neurology ward
Authors: Kostic Marina , Zivkovic-Zaric Radica , Jankovic Slobodan
Published: October 2019

Bacground/Aim. Treatment of neurological diseases usually requires polypharmacy, and it is crucial to detect potential drug-drug interactions (DDIs) and recognize risk factors on time, as consequences of DDIs could be serious. The aim of the study was to analyze risk factors for the occurrence and the number of potential DDIs among patients in a general neurological ward. Methods. This study was conducted with 144 inpatients in a general-care neurological department of a tertiary care hospital. The effects of risk factors for potential DDIs were evaluated by multiple linear regression. The study had retrospective cohort de-sign. Frequencies of various types of potential DDIs (according to severity) were discovered by Medscape, Epocrates and Micromedex online interaction checkers. Results. The number of prescribed drugs, age of a patient, value of the Charlson comorbidity index and prescription of an antidepressant increase risk of potential DDIs in a general neurology ward. On the other hand, being paralyzed, number of prescribers for a single patient, being bedridden for at least one day of hospitalization decreased the number of potential DDIs per patient. Number of prescribed drugs per patient [odds ratio (OR) = 1.466 ? 0.250; p = 0.000) and age (OR = 1.027 ? 0.026; p = 0.041)] increased, and number of prescribers per patient (OR = 0.056 ? 0.028; p = 0.016), especially if the patients were paralyzed (OR = 0.214 ? 0.294; p = 0.007), decreased the risk of contraindicated, serious, ?use alternative? or major potential DDIs. Antidepressants increased the risk of absolute number of all monitor/modify potential DDIs (OR = 1.257 ? 0.726; p = 0.035). Conclusion. Frequency of potential DDIs among neurological patients is considerable and influenced to the largest extent by advanced age, comorbidities, total number of pre-scribed drugs per patient and concomitant use of antidepressants.
Significance of myeloid-derived suppressor cells (MDSCs) like CD14+B7-H4 cells frequency in blood and tumor microcirculation of lung cancer patients
Authors: Vukovic Jelena , Karlicic Vukojica , Ristic Sasa , Stanojevic Ivan , Nikolic Nevena , Stefik Debra , Jovic Milena , Abazovic Dzihan , Supic Gordana , Vojvodic Danilo , Pavlovic Milos
Published: October 2019

Background/Aim. Myeloid-derived suppressor cells (MDSCs) suppress immune responses via a series of inhibitory mechanisms, which ultimately could lead to tumor growth. B7-H4 expression is significantly associated with poor outcome and promotion of tumor cell proliferation, invasion and migration in patients with various cancers. Data concerning B7-H4 expression in lung cancers (LC), either on tumor or immunological cells, are still sporadic. The aim was to estimate and correlate the number of CD14+B7-H4+MDSCs in blood and lung tumor microcirculation with clinical stage, histology type of tumor, tumor node metastasis (TNM) stadium, nodal status and disease outspread. Methods. The study included 44 lung cancer patients (III and IV clinical stage) and 30 healthy controls. CD14+B7-H4+ MDSC number was estimated by flow cytometry in blood and tumor microcirculation samples of each patient. Results. CD14+B7-H4+ MDSCs number was significantly higher in patients? samples compared to controls. CD14+B7-H4+ MDSC number was significantly increased in tumor compared to blood sample of the same patient. Clinical stage III patients had the increased number of the CD14+B7-H4+ MDSC compared to stage IV, in both types of samples. According to histology, small cell lung cancer (SCLC) patients had the highest average CD14+B7-H4+ MDSCs number, significantly increased compared to patients with squamous and large cell LC histology type. Tumor size was directly associated with the number of the CD14+B7-H4+ MDSC, both in blood and tumor samples. Furthermore, nodal involvement was associated with the gradual increase of the CD14+B7-H4+ MDSC number, being the highest in the N3 group, again both in blood and tumor samples. Finally, we detected higher CD14+B7-H4+ MDSCs number in the samples of patients without metastases. Conclusion. CD14+B7-H4+ MDSCs n umber in L C patients is significantly associated with tumor histology type, lymph node involvement, disease extent degree and tumor size. Concerning their large number in LC tumor microenvironment together with immunosuppressive capacities, CD14+B7-H4+ MDSCs could represent important tumor promoting factor in LC pathophysiology.
PENERAPAN MODEL PEMBELAJARAN CONTEXTUAL TEACHING AND LEARNING, QUANTUM TEACHING TERHADAP MOTIVASI BERPRESTASI DAN HASIL BELAJAR IPS SISWA KELAS VII
Authors: Sari Astiti Ni Nyoman , Lasmawan I Wayan , Akhmad Haris Iyus
Published: October 2019

Penelitian ini adalah penelitian eksperimen semu, dengan rancangan post test only control group design, bertujuan untuk mengalisis perbedaan motivasi berprestasi dan hasil belajar IPS antara siswa yang mengikuti pembelajaran contextual teaching and learning dan quantum teaching siswa kelas VII, secara terpisah maupun simultan. Populasi dalam penelitian ini adalah semua siswa kelas VII. Setelah diadakan uji kesetaraan, diplih secara random 2 kelas sebagai sampel, 1 kelas menjadi kelas ekspeimen dan 1 kelas sebagai kelas kontrol.  Data dalam penelitian dikumpulkan dengan kuesioner dan tes hasil belajar IPS dan dianalisis dengan anava dan manova. Hasil analisis menunjukkan bahwa: (1) ada perbedaan motivasi berprestasi siswa antara yang mengikuti pembelajaran dengan model pembelajaran Contextual Teaching and Learning dan Quantum Teaching dengan Fhitung = 52,613 (p = 0,000 < 0,05), (2) ada perbedaan hasil belajar IPS siswa antara yang mengikuti pembelajaran dengan model pembelajaran Contextual Teaching and Learning dan Quantum Teaching dengan Fhitung = 30,384 (p = 0,000 < 0,05), dan (3) terdapat perbedaan motivasi berprestasi dan hasil belajar IPS siswa antara yang mengikuti pembelajaran dengan model pembelajaran Contextual Teaching and Learning dan Quantum Teaching dengan F- Wilks' Lambda= 48,307 (p = 0,000 < 0,05). Dengan demikian dapat disimpulkan bahwa model pembelajaran Contextual Teaching and Learning dan Quantum Teaching berpengaruh signifikan terhadap motivasi berprestasi dan hasil belajar siswa kelas VII.Kata kunci: model pembelajaran contextual teaching and learning dan quantum teaching, motivasi berprestasi, hasil belajar IPS
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.
Efektivitas Implementasi Kurikulum 2013 Mata Pelajaran PPKN Pada SMA Negeri di Kecamatan Busungbiu
Authors: Angga Supriana I Gd , Sukadi Sukadi , Suastika I Nengah
Published: October 2019

Penelitian ini bertujuan untuk menilai efektivitas implementasi kurikulum 2013 mata pelajaran PPKn pada SMA Negeri di Kecamatan Busungbiu. Jenis penelitian ini menggunakan pendekatan evaluasi dengan model CIPP. Tempat dalam penelitian ini adalah SMA Negeri di Kecamatan busungbiu yang melaksanakan kurikulum 2013, yaitu SMA Negeri 1 Busungbiu dan SMA Negeri 2 Busungbiu dan Sampel dalam penelitian ini adalah dua orang kepala sekolah dan dua orang guru PPKn SMA Negeri di Kecamatan Busungbiu. Berdasarkan instrumen evaluasi dari Kemendikbud, sampelsiswa diambil 5 orang dari masing-masing sekolah sehingga sampel siswaberjumlah 10 orang dengan menggunakan undian.Instrumen penelitian berupa kuisioner, lembar observasi dan dokumentasi. Analisis yang digunakan adalah Statistik Deskriptif. Hasil analisis menunjukkan bahwa efektivitas implementasi kurikulum 2013 mata pelajaran PPKn pada SMA Negeri di Kecamatan Busungbiu terkualifikasi efektif.Kata Kunci : Kurikulum 2013, Pelajaran PPKn.
The role of vascular reconstructions in surgery of tumors of the hepatopancreatobiliary zone
Authors: Katelnitskiy Igor I. , Katelnitskaya Oksana V.
Published: October 2019

According to the point of view that has been dominating for many years, pancreatoduodenal resection was indicated only for localized tumors of the pancreas without involvement of the major vessels. In view of the prevalence of this pathology, many authors have recently pointed out the need to perform resection of a pancreatic tumor in a single bloc with the vessels involved, which gives a chance to increase the resectability in a larger number of patients.
Aim. Analysis of resectability of pancreatic tumors on the basis of the data of current clinical research. In recent decades many different surgical approaches have been improved which increases chances for successful and safe surgical intervention. The data of the analysis of literature on vascular reconstructions in surgery for tumors of the hepatopancreatobiliary zone showed that resections and reconstructions of the mesenteric portal venous segment permit to increase resectability of tumor and should correspond to the fundamental principles of surgical oncology. To date, in terms of the incidence of postoperative complications and mortality, no statistically significant differences were found between the group of patients in whom vascular resection was performed, and the group with a standard pancreatoduodenal resection. A thorough preoperative selection of patients along with the correct strategy of venous reconstruction is equally important for correct and successful resection of the blood vessels en bloc.
Ryazan genius of Russia (to the 170th anniversary of the birth of academician I.P. Pavlov and the 115th anniversary of the Nobel prize)
Authors: Zagrina Natal`ya A. , Lapkin Mikhail M. , Kozeevskaya Nadezhda A.
Published: October 2019

The article is devoted to the 170th anniversary of academician I. P. Pavlov (1849) and the 115th anniversary of the Nobel prize (1904). The authors reflected the main directions in the scientific work of the great scientist and emphasized the relevance of the results of his research for modern medicine in the field of physiology of blood circulation, of digestion and of higher nervous activity.
Geostrategic Management As An Efficiency-Increasing Tool Of Construction Industry Companies
Authors:   Federal University, Institute of Management, Economics and Finance, Saxon Max Leonidovich
Published: October 2019

The vast majority of domestic researchers acknowledge that the construction complex is iden-tified by territorial and sectoral characteristics, man-agement strategies. At the same time, due attention is not paid to geostrategic management in the con-struction industry as the basis of modern effective leadership by general and subcontracting construc-tion organizations. The author has set an objective to reveal geostrategic management from the point of view of using it as a conceptual base and a special tool aimed at improving the efficiency of construc-tion activities. The achievement of this goal is the disclosure of geostrategic management as an eco-nomic concept; substantiation of its necessity and demand in the modern construction industry; sys-tematization of the distinguis-hing features of geo-strategic management from those strategic in the construction industry; identification of problems that impede the development of the geostra-tegy of management in the domestic construction industry. The key modern trends and features of geostrate-gic management of the construction sector, re-flected in the global, regional and subregional spa-tial promotion, the presence of not only competi-tors, interdependent partners, but also a unified, modifiable positioning system, division of labor are presented. The novelty of the article is due to one of the first attempts to analyze geostrategic man-agement as an effective mechanism for the sustain-able functioning and improvement of Russian con-struction companies. The composition of this mechanism involves new forms of managerial func-tions, the dominance of a scenario-based approach to management, an immediate managerial response to changes in the environment (as opposed to a strict adherence to the previous strategy), fo-cusing on improving the organization’s manage-ment quality in the course of construction work, management focus on the principles of theory sin-gle economic space. The measures proposed by the author are aimed at increasing the level of geo-strategic management in construction, expanding the capabilities of construction enterprises in the new conditions of economic activity.
Military And Political Significance Of Venezuela For The Russian Strategic Outlook
Authors:   Krasnodar Higher Military Aviation School, Fedotov David Sergeyevich
Published: October 2019

The paper examines military and political signifi-cance of Venezuela for development of strategic interests of the Russian Federation in the region and defines priorities of strategic confrontation with the USA on the setting of the current relations between the Russian Federation and Venezuela, that under H. Chavez and his successor has become a consistent ally and an economic partner of Russia in Latin America. The strategic significance of Venezuela is attributable to the key location of the state in the region. During the research, the author used general scientific methods of the comparative and statistical analysis of structure and dynamics. Possible scenar-ios of geopolitical confrontation of Russia and the USA for asserting their ascendancy in South Ameri-ca were analyzed. From this analysis it is possible to conclude that Russia’s presence in Venezuela is determined by economic interests in the oil-extracting industry and strategic proximity of the territory of the state to the USA borders. According to the author, reevaluation of the existing paradigm of the “donation receiving economy of Venezuela” and reorientation of support of the political regime of N. Maduro that has outlived its usefulness may become the new approaches to development of Russia-Venezuela relations
J. Gorostiaga, M. Palamidessi, C. Suasnábar y N. Isola (coords.) (2018) “Investigación y política educativa en la Argentina post-2000” ISBN 978-987-06-0880-6
Authors: Miño Chiappino Jessica Sheila
Published: October 2019

Revisión del libro Investigación y política educativa en la Argentina post-2000 por J. Gorostiaga, M. Palamidessi, C. Suasnábar y N. Isola
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.
Peristaltic Transport of Couple Stress fluids In a Uniform and Non-Uniform Annulus
Authors: Kasaeipoor Abbas , S.K Asha
Published: October 2019

The aim of the present investigation is to study the peristaltic transport through the gap between coaxial tubes, where the outer tube is non uniform and the inner tube is rigid. The necessary theoretical results such as viscosity, pressure gradient and friction force on the inner and outer tubes have been obtained in terms of couple stress parameter. Out of these theoretical results the numerical solution of pressure gradient, outer friction, inert friction and flow rate are shown graphically for the better understanding of the problem.
Deterministic EOQ models for non linear time induced demand and different holding cost functions
Authors: Aneja Surbhi , Tripathi R P , Singh D
Published: October 2019

This paper presents an Economic order quantity (EOQ) model for deteriorating items. The demand rate is non-linear function of time. In this paper two models have been derived for different holding costs (i) The holding cost is linear function of the on hand inventory level. (ii). A non-linear function of time for which the item is kept in the stock. Optimization is done for both the models and numerical examples are presented to check the feasibility of the optimal solutions. Sensitivity analysis is also presented with respect to the various parameters used in the numerical example.
An Alternative Formulae for the Net Present Value (NPV)
Authors: Reza Habibi
Published: October 2019

An alternative formulae is derived for NPV. First, the equivalence of NPV formulae and the value of a special portfolio is shown and weights of special portfolio is derived by minimizing the variance of portfolio.
Exact Moments of order Statistics from The exponentiated Lomax distribution
Authors: Rashwan Nasr Ibrahim
Published: October 2019

In this paper, order statistics from the exponentiated Lomax distribution (ELD) are obtained. Exact form for the single, product and Triple moment of order statistics from ELD are derived. Measures of skewness and kurtosis of the probability density function of the rth order statistic are presented. Some recurrence relations for the single and product moments of order statistics from ELD are established. Also, the percentage points of single order statistics from ELD are computed.
HPM for Solving the Time-fractional Coupled Burgers Equations
Authors: Abu Alnaja Khadijah
Published: October 2019

In this paper, the homotopy perturbation method is implemented to derive the explicit approximate solutions for the time-fractional coupled Burger's equations. The including fractional derivative is in the Caputo sense. Special attention is given to prove the convergence of the method. The results are compared with those obtained by the exact at special cases of the fractional derivatives. The results reveal that the proposed method is very effective and simple.
Fractional power series method for solving fractional differemtial equation
Authors: Cui Runqing , Hu Yue
Published: October 2019

we use fractional power series method (FPSM) to solve some linear or nonlinear fractional differential equations . Compared to the other method, the FPSM is more simple, derect and effective.
The First Triangular Representation of The Symmetric Groups over a field K of characteristic pdivides (n-2)
Authors: Al-Aamily Eyad M.A , M.Al-Butaihi Ali Abdulsahib , Ta,ai Abid Ali HAl
Published: October 2019

In this paper we will study the new type of triangular representations of the symmetric groups which is called the first triangular representations of the symmetric groups over a field K of characteristic pdivides(n-2).
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

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

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

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

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

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.
Sustainability of a Small Firm – the Entrepreneurial Perspective
Authors: Tomski Piotr , Manzoor Faiza
Published: October 2019

The objective of the paper is to analyze the perception of sustainable performance of entrepreneurs being owners-managers of small businesses. The research tool was the questionnaire.
Personnel Function Audit as a Quality-Promoting Tool in Human Resource Management in a Local Government Unit
Authors: Przewoźna-Krzemińska Agata
Published: October 2019

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

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

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

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

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

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

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

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

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

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.
Efektivitas Penggunaan Modul Berbasis Differentiated Instruction untuk Meningkatkan Kemampuan Pemahaman Konsep Matematika Mahasiswa
Authors: Harmini Triana
Published: October 2019

Teaching material is an essential component of learning. Teaching materials for Calculus courses, especially for the Department of Informatics, remains limited and orients towards a collection of materials and questions that cannot overcome the differences in student characteristics. Therefore, in the form of learning modules that can accommodate variations in student characteristics is a crucial need in teaching material. In this study, the learning module based differentiated instruction was compiled by taking into account the different characteristics of student ability levels. This study aimed to determine the effectiveness of Calculus learning by using learning modules based on differentiated instruction to students' conceptual understanding of the material of qualities and inequalities of absolute value. This research was experimental research and the subjects were the Informatics Engineering students of the University of Darussalam Gontor, enrolled in the first semester in the academic year 2018-2019. The research instrument was tests of conceptual understanding consisting of short-answer problems given at the beginning and the end of learning. The design of this study used One-Group Pretest-Postest Design and data analysis involved a Wilcoxon test due to the small number of subjects (25 people). The results of the analysis showed that the use of the learning modules based on differentiated instruction effectively enhanced the mathematical conceptual understanding of students.
Hukuman Tindak Pidana Pornografi dalam Hukum Pidana Islam
Authors: Firdaus Said , Din Mohd. , Jauhari Iman
Published: October 2019

Tujuan penelitian ini adalah untuk menelaah aturan hukum serta alasan mengapa bentuk dan kriteria tindak pidana pornografi dalam hukum pidana Islam, penerapan sanksi tindak pidana pornografi menurut Undang-Undang Nomor 44 Tahun 2008 dan Hukum Islam, dan dampak positif dan negatif tindak pidana pornografi. Pornografi dilarang menurut hukum nasional. Penelitian ini adalah penelitian hukum yuridis normatif, dengan mengkaji peraturan perundang-undangan, dengan melihat hukum dari aspek normatif. Data yang digunakan dalam penelitian ini adalah bahan hukum. Hasil penelitian menunjukan bahwa bentuk dan kriteria dalam hukum pidana Islam yang dapat dikategorikan sebagai tindak pidana pornografi adanya bentuk tingkah laku, sifat melawan hukum, kesalahan, akibat konstitutif, keadaan menyertai, syarat tambahan untuk dapatnya dituntut pidana, dan syarat tambahan untuk dapat dipidana. Penerapan sanksi tindak pidana dalam hukum Islam hukuman bagi pelaku tindak pidana pornografi bisa dihukum dengan hukuman zina, ta’zir, dan qisas. The Pornographic Criminal Sanctions In Islamic Crime This research aims to examine the rule of law, the forms and criteria of pornography in Islamic criminal law, the pornographic criminal sanctions in accordance with Law No. 44 Year 2008 and Islamic Law, as well as positive and negative impact of pornography. Based on National law Pornography is prohibited. This is a normative juridical research, not only by studying the laws and regulations but also by looking at the law from the normative aspect. The data used in this reasearch is legal material. The results show that the forms and criteria in Islamic criminal law that categorized as pornographic crimes were forms of behavior, unlawful act, misconduct, constitutive consequences, certain circumstances, additional conditions for criminal prosecution, and additional conditions for punishment. The application of criminal sanctions in Islamic law penalties for those who commit pornography can be punished by Adultery, Ta'zir, and Qisas.
Reformulasi Sanksi Pidana Pencemaran Nama Baik Melalui Media Online
Authors: Fadli Rahmat , Din Mohd. , Mujibussalim Mujibussalim
Published: October 2019

Penelitian ini bertujuan untuk mengkaji perlindungan hukum terhadap korban pencemaran nama baik melalui media online dan menjelaskan pemenuhan restitusi yang seharusnya diterima korban pencemaran nama baik melalui media online. Pencemaran nama baik merupakan perbuatan melawan hukum, dikarenakan telah menyerang kehormatan atau nama baik seseorang. Rumusan tindak pidana pencemaran nama baik melalui media online diatur dalam Pasal 27 ayat (3) Undang-Undang Infomasi dan Transaksi Elektronik. Sanksi pidananya diatur dalam Pasal 45 ayat (3) Undang-Undang ini. Dalam Undang-Undang ini belum diatur sanksi pidana yang berbentuk restitusi, sehingga kurang melindungi korban pencemaran nama baik melalui media online. Metode penelitian ini adalah yuridis normatif dengan menggunakan bahan hukum primer, sekunder, dan tersier, Berdasarkan hasil penelitian ditemukan bahwa ancaman pidana pada Pasal 45 ayat (3) Undang-Undang Infomasi dan Transaksi Elektronik belum memenuhi rasa keadilan dan memberi manfaat kepada korban. Karena pada pasal ini belum mengatur sanksi pidana yang bersifat ganti rugi terhadap korban. Reformulation of  Criminal Sanctions on Defamation Through Online Media This study aims to examine the legal protection of victims of defamation through online media and explain the fulfillment of restitution that should be received by victims. Defamation is an act against the law, because it has attacked someone's honor or reputation. The formulation of criminal defamation through online media is regulated in Article 27 paragraph (3) of the Information and Electronic Transactions Law. The criminal sanctions are regulated in Article 45 paragraph (3). This law has not yet regulated criminal sanctions in the form of restitution, so it does not protect victims of defamation through online media. The research method is a normative juridical by using primary, secondary, and tertiary legal materials. The results found that the criminal threat in Article 45 paragraph (3) of the Law on Information and Electronic Transaction had not fulfilled a sense of justice and benefited for victims. It is because this article does not yet regulate criminal sanctions that are compensation for the victim.
Penyalahgunaan Keadaan dalam Bentuk Perjanjian Baku
Authors: Yunus Ahyuni
Published: October 2019

Penelitian ini mengkaji tentang permasalahan penyalahgunaan keadaan dalam suatu proses yang berkaitan dengan terjadinya perjanjian. Permasalahan yang timbul adalah kondisi salah satu pihak yang lemah secara sosial dan ekonomi pra pelaksanaan perjanjian, dimana pihak lemah ini dimanfaatkan oleh pihak lainnya untuk mendapatkan keuntungan melalui perjanjian tersebut. Hasil kajian menunjukkan bahwa kondisi yang lemah secara sosial dan ekonomi tersebut, maka pihak ini tidak memiliki kebebasan kehendak dalam membuat perjanjian. Kehendak bebasnya tidak penuh akibat kondisi sosial ekonominya dan kondisi lainnya dalam proses perjanjian. Kehendak bebas para pihak dalam suatu perjanjian sesungguhnya telah menyangkut asas hukum perjanjian, yakni asas kebebasan berkontrak yang memerlukan adanya kehendak bebas para pihak yang melaksanakan perjanjian. Tanpa kehendak bebas bagi para pihak yang melakukan perjanjian, maka tentunya perjanjian yang dibuat tersebut, sama halnya perjanjian yang dibuat tersebut tidak memenuhi syarat sahnya perjanjian yaitu terutama syarat adanya kesepakatan para pihak. Misuse of Other Party Condition in Standard Contract This study examines the misuse of conditions in agreement process. The condition of one party that is socially and economically weak in the pre-implementation of the agreement results in the party being utilized by the other party to benefit through the agreement. The results indicate that socially and economically weak conditions result in the party not having free will in making agreements due to their socio-economic and other conditions. The free will of the parties in an agreement actually involves the principle of agreement, namely the principle of freedom of contract which requires the free will of the parties to carry out the agreement. Without the free will of the parties, the same agreement does not meet the legal requirements of the agreement, especially the conditions for the agreement of the parties.