bluuebunny/crossref_metadata_2025_split huggingface dataset:
Flame Retardancy Effects on Intumescent Coatings with Vinyl Acetate Copolymers
Authors: Chuang C.-S. , Fan Y.-J. , Sheen H.-J. 
Published: November 2019

AbstractThis research aimed to study the effects of fire combustion on materials coated with ethylene vinyl acetate and polyvinyl acetate copolymer emulsion resins with differing foam producing substance to dehydrating agent ratios. The flame retardancy of these materials was assessed by evaluating their heat release, CO and CO2 emissions. Experimental results indicate that intumescent paint formulations significantly enhance the flame retardancy of painted plywood, thus reducing peak heat release rate and extending the time to reach peak heat release rate. Moreover, a low amount of foam producing substance enhances the fire retardancy of plywood panels. Furthermore, binder resin containing vinyl acetate monomer in intumescent coatings can enhance fire performance. In addition, low foam producing substance content can form an ideal char layer, which significantly reduces CO and CO2 emissions. The mechanism to achieve more favorable fire performance was verified by carrying out thermogravimetric analysis, which demonstrated lower weight loss. The results of this study provide an improved understanding of the effects of intumescent coatings.
Enhancement of Injection Molding Consistency by Adjusting Velocity/Pressure Switching Time Based on Clamping Force
Authors: Chen J.-Y. , Liu C.-Y. , Huang M.-S. 
Published: November 2019

Abstract
The velocity/pressure (V/P) switching time, the transition from the filling phase to the holding phase during the injection molding cycle, plays a crucial role in ensuring the quality of the injection molding. Improper settings can lead to a variety of defects, including oversize/undersize, excessive residual stress, flash, warpage, and the like. There are currently many V/P switching methods to choose from. For example, when the injection time or the screw position reaches a prescribed value, that is, when a specified percentage of the cavity is filled with the molten resin, the switching time can be started. These traditional V/P switching methods should work well using precision injection molding machines to ensure accurate and repeatable motion control. However, the quality of shot-to-shot injection molding still varies with environmental changes, such as varying mold/melt temperatures. In this study, we propose a V/P switching adjustment method involving part weight or maximum clamping force increments. It was found that the weight of the injection molded part was highly correlated with the maximum clamping force increment and the V/P switching time. Experimental verification by considering various settings such as V/P switching time, injection speed and holding pressure show that the adjustment method is a feasible means of assuring quality consistency.
Peranan Psikologi Olahraga dalam Pencapaian Prestasi Atlet Senam Artistik Kabupaten Sijunjung
Authors: Handayani Sri Gusti 
Published: November 2019

The purpose of this study was to see the extent of the role of sports psychology in artistic gymnastics. This type of research is qualitative. Data were taken through observation and interviews using a Likert scale questionnaire given to athletes, and data analysis was carried out by descriptive analysis. The results showed that in the training of gymnastics in Sijunjung Regency, the psychological aspects of athletes which included emotion, intelligence, intelligence, tension, discipline, aggressiveness, self-confidence, motivation, were still in the less category, this was due to the lack of attention paid coach in fostering artistic gymnastics. Conclusion, the psychological aspect is very much needed in supporting the artistic gymnastics athlete's presentation
Keywords: Psychology, Artistic Gymnastics, Athlete Achievement
Pengaruh Latihan Shuttle-Run dan Zig-Zag Run terhadap Kelincahan Atlet Taekwondo
Authors: Malasari Citra Azhariat 
Published: November 2019

The purpose of this study was to determine the effectiveness of shuttle run and zig-zag run exercises in increasing the agility of taekwondo athletes. This study uses a quasi-experimental method with a pre-test and post-test design control group design. The results showed, (1) shuttle run training had a significant effect on increasing agility (thit = 61.42> ttab = 2.26); (2) ziq-zaq run exercises have a significant effect on increasing agility (thit = 169.06> ttab = 2.26); (3) ziq-zaq run exercises are more effective in increasing agility compared to shuttle run exercises (thit = 25.64> ttab = 2.26). In conclusion, training with the zig-zag run method is more effective in increasing the agility of taekwondo athletes.
Keywords: Shuttle-Run, Zig-Zag Run, Agility, Taekwondo.
Validitas Modul Bola Tangan Bagi Mahasiswa Pendidikan Jasmani Kesehatan dan Rekreasi STKIP PGRI Lubuklinggau
Authors: Popalri Popalri , Fikri Azizil 
Published: November 2019

This study aims to develop a handball module for valid Physical Health and Recreation Education STKIP PGRI Lubuklinggau students. This study uses a research and development research and development (R&D) approach, in which this research develops teaching material products in the form of handball game modules, for this research is only limited to the development stage at the validation stage. Validity test in this stage is a theoretical validity that is validation carried out by experts in their field consisting of three validators. Validation includes language validation, material / content validation and media / design validation. The results of the developed handball module meet the validity criteria with a language validity value of 94%, media / design validity of 90% and a content / material validity value of 94% which can be interpreted to be very valid. In conclusion, the handball module is very valid to be used in the learning process of students.
Keywords: Module, Handball
PENGARUH GOOD CORPORATE GOVERNANCE DAN VOLUNTARY DISCLOSURE TERHADAP BIAYA HUTANG (COST OF DEBT) PADA PERUSAHAAN PERBANKAN YANG TERDAFTAR DI BURSA EFEK INDONESIA
Authors: Samhudi Akhmad 
Published: November 2019

This research aims to examines variables influencing cost of debt in banking companies listed in Indonesian Stock Exchange. Independent variables are Good Corporate Governance (independent commissioner, managerial ownership, institutional ownership, and audit quality) and voluntary disclosure.There are 19 banking companies which taken as samples during period 2013 to 2015. Analysis method in this research is multiple regression analysis which used SPSS program 16.0 version. Simultaneously testing used F-test and partially testing used t-test.The result shows that partially, independent variables which significantly influencing cost of debt are audit quality and voluntary disclosure with each significant value 0.003 and 0.049 (less than 0.05). Simultaneously, independent commissioner, managerial ownership, institutional ownership, audit quality and voluntary disclosure significantly influencing cost of debt in banking companies listed in Indonesia Stock Exchange with significant value 0.000 (below from 0.05). Adjusted R2 value 0,305 shows that 30,5% variation of companies cost of debt can be explained by independent commissioner, managerial ownership, institutional ownership, audit quality and voluntary disclosure and the explained by variables which not used in this research. Keywords: Good Corporate Governance, Voluntary Disclosure, Cost of Debt
PERANAN JUST IN TIME METHOD UNTUK PENINGKATAN PRODUKSI PERUSAHAAN
Authors: Willem Willem 
Published: November 2019

Market competition that is not only in national scope, transportation and communication tool progress have encouraged global competition. Technology advance plays an importance role in short goods circulation and increasing various types of produced goods. This research aims to determine (1). Any non value Added activities leading to non value added costs in the company (2). The extent of benefits and roles of Just In Time (JIT) Method in eliminating all non value activities or sources (3). To provide description on the importance of Just In Time application for the company in order to improve efficiency and productivity. This research used descriptive method, namely the research giving description on certain activity or project systematically, factually and appropriately and there are also some necessary analyses to overcome any faced problems and to find out any alternatives that can be used to anticipate various developments to be adjusted with the theory. Results of the research conclude that (1). Success in reducing or making efficient production cost can be seen in sale by savings (2). The figure is obtained from comparison of cost of goods before the JIT production system implementation with the cost of goods after the JIT production system implementation. (3) by reducing cost of goods, it is expected that the company can reduce its cost of sale, with the aim to add product competitiveness in the market and the company will obtain increased level of profits. (4) it can be seen that before the implementation of JIT production system, the company profit has increased after the implementation of JIT production system. Keywords: Just In Time Method, Company Production Increase
ANALISIS TEGANGAN PROPELLER KAPAL PENANGKAP IKAN DI KOTA DUMAI MENGGUNAKAN FINITE ELEMENT ANALYSIS
Authors: Yaqin Rizqi Ilmal , Siahaan Juniawan Preston , Pranoto Sigiet Haryo 
Published: November 2019

Propeller merupakan salah satu komponen pada kapal penangkap ikan yang memiliki fungsi untuk menggerakan kapal. Efisiensi dari propeller kapal sangat berpengaruh langsung terhadap mesin utama penggerak pada kapal penangkap ikan. Beberapa kondisi, propeller kapal dirancang untuk menyerap daya seminimal mungkin dan memberikan efisiensi gerak kapal semaksimal mungkin. Gaya rotasi propeller kapal akan menciptakan gaya dorong kapal. Gaya yang bekerja pada propeller kapal terjadi karena adanya gaya dari dorongan dan gaya centrifugal serta torsi dari propeller kapal pada setiap blade yang disebabkan revolusi di sekitar sumbu putar propeller kapal. Oleh karena itu, perhitungan tegangan yang dihasilkan dari gaya-gaya pada propeller kapal sangat sulit di perhitungkan secara akurat. Finite Element Analysis (FEA) telah menjadi solusi untuk memprediksi dari suatu kekuatan material yang tidak dapat ditunjukkan dalam teoritis dan memungkinkan desainer untuk melihat semua gaya secara teoritis yang terjadi pada model. Penelitian ini menggunakan material paduan tembaga yang memiliki number of element sebesar 406674 dan jumlah nodes 640321. Hasil yang didapatkan yaitu tegangan maksimu Von Mises yaitu sebesar . Sedangkan nilai regangan maksimum yaitu sebesar 0,2448 dan nilai displacement maksimum sebesar 133 mm. Nilai safety factor pada penelitian ini sangat rendah yaitu 0. Sehingga geometri desain model propeller sangat rawan terjadi kegagalan atau deformasi saat diaplikasikan.
Optimization of methodology of education, self- education and level knowledge control of pharmacists-interns for «Krok 3. Pharmacy»
Authors: Hrynkiv Ya. O. , Revyatskyy I. Yu. , Zaliska O. M. 
Published: November 2019

Since 2017 exam «Krok 3. Pharmacy» (pilot in 2017–2018) has been included to the system of licensed integrated exams for pharmacists-interns specialty «General Pharmacy». Which introduced some adjustments to the educational process at the postgraduate stage of education. The task was to review the existing methods of education, self-education and level knowledge control of pharmacists-interns to «Krok 3. Pharmacy» at the Department of organization and economics of pharmacy, drug technology and pharmacoeconomics FPE of Danylo Halytskyy Lviv National Medical University and determined possible directions for their optimization. The objects of the research were the processes of education, self-education and level knowledge control of pharmacists-interns for the exam «Krok 3. Pharmacy»; the results of conducted pre-tests pharmacists-interns for 2017–2019; the results of anonymous survey of students pharmacy faculty and pharmacists-interns on possible areas of optimization of the above processes. It was used methods of statistical processing of the results of an anonymous questionnaire the Google form and the results of pre-tests to «Krok 3. Pharmacy» for pharmacists-interns 2017–2019 learning years.
It was found that a significant majority of pharmacists-interns begin preparation for «Krok 3. Pharmacy» 1–3 months before the date of exam. Questions on clinical pharmacy and pharmaceutical technology are easier, pharmaceutical analysis of drugs and special training are the most difficult. It was confirmed that, there is no a direct relationship between the complexity of studying questions and the pre-test results of subjects.
57% of respondents consider that pre-testing should be conducted only online; 25% – only on paper; 18% – by two methods: on paper and online.
It was determined promising areas for further optimization preparation of the pharmacists-interns were determined on the basis of the obtained results: education period; formation of blocks of test tasks for the «MISA» system and paper by the quantity of questions and by subjects; use computer information technologies for self-education for «Krok 3. Pharmacy».
Synthesis and antiexudative activityof pyrolin derivatives 2 - ((4-amino-5- (furan-2-yl)-1,2,4-triazol-4H-3-il)-sulfanil)-N-acetamides
Authors: Chalenko N. M. , Bezugly P. A. , Sirova A. O. , Chekman I. S. , Demchenko A.M. 
Published: November 2019

The continuous research of new effective drugs is associated with a significant number of diseases, pathological conditions. Conventional treatment with existing drugs could be ineffective, or addictive, and have a large number of side effects. Therefore, the aim of modern pharmacy is to minimize the toxicity of drugs and create new modern domestic medicine that would be more effective in relation to their activity and relatively non-toxic.
Derivatives of 1,2,4-triazol have considerable synthetic, pharmacological potential. That’s why study of the synthetic methods of the new structures obtain, its physical, physico-chemical, biological properties may become the basic for their spector of the synthesized derivatives and biological activity widening.
The aim of the work: choice on the investigation ground in silico the basic structures 1,2,4-triazol-3-thione and the special purpose synthesis of the new potential biological active compounds, definition its structure and physic-chemical properties mark of antiexudative activity. The synthesis of pyroline derivatives of 2-((4-amino-5-(furan-2-il)-1,2,4-triazol-4H-3-il)-sulfanyl)-N-acetamides was accomplished by stages.
The article describes the synthesis of new pyrolin derivatives 2-((4-amino-5(furan-2-yl)-1,2,4-triazol-4H-3-il)-sulfanyl)-N-acetamide. Acetamides were obtained by alkylation of 2-((4-amino-5(furan-2-yl)-1,2,4-triazol-3-thione N-aryl-substituted α-chloroacetamides in the presence of KOH. Using Paal-Knorr condensation of the amino group at 4th position of the triazole ring modified into pyrolium fragment. Physical and chemical characteristics, chemical structure and anti-exudative activity of the obtained compounds were established.
Anti-exudative activity of compounds was investigated in the experiments on the white rats in the doses 10 mg/kg comparately with reference drug-diclophenac natrium in formalin edema modulation. The paw size was measured by pletismography before drugs introduction. For the first time 24 compounds have been synthesized: 4 pyroline derivatives 2-((4-amino-5-(furan-2-il)-1,2,4-triazol-4H-3-il)-sulfanyl)-N-acetamides. In 91% of the new synthesized derivatives the antiexudative properties have been found, 5 compounds (10.9, 10.10, 10.15, 10.21, 10.1) by anti-exudative activity have exceeded the reference drug. It is considered that the investigations of these compounds by presence or absence analgesics activities are perspective.
Determinan Kejadian Penyakit Demam Berdarah Dengue (DBD) di Wilayah Kerja Puskesmas Medan Johor
Authors: Sinaga Pariono , Hartono Hartono 
Published: November 2019

Penyakit demam berdarah dengue merupakan salah satu penyakit tular vektor yang menyerang masyarakat perkotaan (aedes aegypti) dan masyarakat pedesaan (aedes albopictus). Salah satu daerah endemis DBD di Kota Medan adalah wilayah kerja Puskesmas Medan Johor dimana setiap tahunnya di wilayah tersebut selalu ditemukan kasus baru DBD dan jumlah kasus DBD selalu meningkat pada akhir tahun karena musim penghujan. Jenis penelitian yang digunakan dalam penelitian ini adalah survei analitik dengan menggunakan pendekatan case control. Populasi penelitian ini adalah seluruh keluarga yang bertempat tinggal di wilayah kerja puskesmas medan johor yaitu sebanyak 20.968 KK. Sampel dalam penelitian ini dibagi dua kelompok yaitu kelompok kasus dan kelompok kontrol. Teknik pengambilan sampel dalam penelitian ini adalah total population untuk kelompok kasus yaitu sebanyak 20 responden dan purposive sampling untuk kelompok kontrol sebanyak 20 orang dengan perbandingan 1:1. Hasil penelitian ini menggunakan uji statistik chi-square dengan tingkat kepercayaan 95%. Hasil penelitian menunjukkan bahwa ada hubungan pelaksanaan pemberantasan sarang nyamuk (PSN), menggantung pakaian dan tidur siang/sore dengan kejadian DBD dengan masing – masing p-value < dari α (0,027<0,05), (0,022<0,05), (0,027<0,05). tidak ada hubungan kasa pada ventilasi, menggunakan obat/anti nyamuk dan menggunakan kelambu dengan kejadian DBD dengan masing – masing p-value > dari α (0,197>0,05), (0,311>0,05), (0,053>0,05). Kesimpulannya adalah ada hubungan pemberantasan sarang nyamuk (PSN), menggantung pakaian dan tidur siang/sore dengan kejadian DBD. Disarankan kepada masyarkat untuk selalu aktif melakakukan tindakan – tindakan pencegahan penyakit DBD.
Student Perceptions of Blended Assessment Approach in The Bachelor of Education Degrees in Mathematics And Science Through Open Distance And E–Learning (Odel)
Authors: Matorevhu Alois 
Published: November 2019

Blended assessment approach (BAA) comprising closed book test (CBT) and open book test (OBT) assessment strategies is being used in the Bachelor of Education Degrees in Mathematics and Science ODeL programme offered by a University M in Zimbabwe. Adherents to BAA identify compensating for weaknesses of one strategy by another, as its major strength. Research studies reveal that if assessment strategies are aligned to assessment objectives the gap between the intended and achieved curricula is reduced. This study was conducted to explore how BAA enhanced congruency between the BED Mathematics and Science ODeL intended and achieved curricula based on the perceptions of in– service teachers in the programme. Interviews, focus group discussions (FDGs) and document analysis were used to gather data. Qualitative data analysis techniques were used, since they were consistent with the objectives of the study. Findings reveal that giving a compulsory OPT after the CBT ensured that learners concentrated both on areas they had challenges, as well as consolidating what they got correct in the CBT. This tended to broaden and deepen frontiers of knowledge of the in–service teachers in their respective subject areas (Mathematics, Physics, Biology and Chemistry). All the in–service teachers in the study concurred that the learner–centred nature of the BAA approach was effective in achieving curriculum objectives. They (in–service teachers) could not hide their support for the BAA by showing their preparedness to immediately implement it in teaching and learning at their schools. Further studies on the use of formative (continuous) assessment strategies like presentations, question setting, group projects and exhibitions by learners are recommended, to improve the blend of assessment strategies in the BAA.
The Effect of Problem Based Learning Models Using Macromedia Flash and Motivation against Student Learning Outcomes on Environmental Pollution Materials
Authors: Mahdalena Tiara Arwira , Suyanti Retno Dwi , Saragi Daulat 
Published: November 2019

This study aims to determine: 1) whether the learning outcomes of students taught with problem-based learning models using macromedia flash are better than students taught with direct learning models, 2) whether the learning outcomes of students who have high motivation are better than students who have low motivation,3) is there an interaction between the two learning models with the level of motivation in influencing student learning outcomes. This research is a quasi experimental study. The population in this study were all grade VII students of MTs Lab. UINSU Medan Academic Year 2018/2019 which consists of three classes. Samples were selected by cluster random sampling of two classes. . The instrument used was a student learning motivation questionnaire and student learning outcomes test. Data obtained from the research instrument were then analyzed using two-way anova in the SPSS 14.0 for Windows program. The results showed that: Student learning outcomes taught by the problem-based learning model were better than students taught by the direct learning model (sig. = 0.027 <0.05), Student learning outcomes that were highly motivated were better than students who were motivated low (sig. = 0,000 <0.05), There is an interaction between the two learning models with the level of motivation in influencing student learning outcomes (sig. = 0.018 <0.05).
Rezim Baru Monarki Thailand: Antara Darurat Militer Dan Kesejahteraan Sosial Di Wilayah Selatan
Authors: A. Kusuma Bayu Mitra , Octastefani Theresia 
Published: November 2019

Muslim communities in Southern Thailand have experienced in discrimination among in economic, social, and politics. This condition has even occurred in the last seven decades under King Bhumibol Adulyadej, who was known to be wise king. Basically, King Bhumibol as the head of state always stated that social welfare approace is the best way to solve the problem, but almost every Thai Prime Minister as the head of government unfortunately always uses a militaristic approach that triggers social resistance. Since King Bhumibol died, Thailand has faced with the potential crisis for two reasons. First, Maha Vajiralongkorn as a successor, he is considered have different charisma with his father because he is very glamorous and have controversial lifestyle. Secondly, the absence of King Bhumibol, who has been a counterweight to the state made the Thai military more often coups. This conditions give impact to Muslim communities in the South who always live with uncertainty condition with two possibilities. First, Muslim communities have a better life under the new monarchy regime with social welfare and humanity approaches. Secondly, the condition of the Muslim communities will remains stagnant under the controversial king with continued by martial law.