bluuebunny/crossref_metadata_2025 huggingface dataset:
Improving Participation and Learning Result Through Make A Match Model of IPS Lessons
Authors: Syarifuddin Syarifuddin , Hasan Mas'ati Ruhing , Hasan Hamka
Published: October 2019

The purpose of this reseach is to increase the students’ participation and learning result of Class VIII.c SMP Negeri 23 Simbang on IPS subjects. This type of research was a classroom action research. Data collection techniques used students' participant observation sheets, evaluation of learning outcomes, documentation, and field notes. The research was hold in 2 cycles with the main subject was population. Each cycle included four stages: (i) planning (ii) implementation of action (iii) observation (iv) reflection. Data were analyzed by using qualitative and quantitative descriptive analysis. The result of the research shows that the students’ participations had increased classically from the beginning of the cycle I until the end of cycle II, ranging from 50% to 80.8% passed the the criteria of 75% as the high category that had been  established. While the students’ learning result classically also increased from 57.7% at the beginning of the first cycle to 84.6% at the end of cycle II,it means that the result has passed the classical learning completion that was defined by 80% as the high category. It can be concluded that the implementation of the Make a Match learning model can improve the students’ participation and learning result of class VIII.c SMP Negeri 23 Simbang on Social Studies subjects.Penelitian bertujuan untuk meningkatkan partisipasi dan hasil belajar peserta didik Kelas VIII.c SMP Negeri 23 Simbang pada mata pelajaran IPS. Jenis penelitian ini adalah penelitian tindakan kelas. Teknik pengumpulan data menggunakan lembar observasi partisipasi peserta didik, lembar evaluasi hasil belajar, dokumentasi, dan catatan lapangan. Pembelajaran dilaksanakan sebanyak 2 siklus dengan materi pokok kependudukan. Setiap siklus meliputi 4 tahap: (i) perencanaan (ii) pelaksanaan tindakan (iii) observasi (iv) refleksi. Data dianalisis dengan menggunakan analisis deskriptif kualitatif dan kuantitatif. Hasil  penelitian menunjukkan partisipasi peserta didik secara klasikal diawal siklus I sampai diakhir siklus II mengalami peningkatan, mulai dari angka 50% sampai dengan 80,8% melewati syarat keberhasilan yang ditetapkan yaitu 75% dengan kategori tinggi. Sedangkan hasil belajar  peserta didik secara klasikal juga mengalami peningkatan dari angka 57,7% diawal siklus I menjadi 84,6% diakhir siklus II, artinya sudah melewati syarat ketuntasan belajar klasikal yang ditetapkan yaitu 80% dengan kategori tinggi. Dapat disimpulkan bahwa penerapan model pembelajaran Make a Match dapat meningkatkan partisipasi dan hasil belajar peserta didik kelas VIII.c SMP Negeri 23 Simbang pada mata pelajaran IPS.
Evaluación del contenido de metales pesados en almendras de cacao (Theobroma cacao L) durante el proceso de beneficiado
Authors: Intriago Flor Frank Guillermo , Talledo Solórzano Maritza Viviana , Cuenca Nevárez Gerardo José , Macías Barberán José Ricardo , Álvarez Andrade José Ricardo , Menjívar Flores Juan Carlos
Published: October 2019

La presencia de metales pesados especialmente Cadmio (Cd+2) y Plomo (Pb+4) en cultivos de cacao (Theobroma cacao L.), es un problema tanto para agricultores y exportadores de cacao, como para los centros de acopio, en los estados de fresco, fermentado y secado. Se analizaron variables físico-químicas acorde a criterios de atributo de las almendras de cacao para lo cual se utilizó un DCA con cinco repeticiones, los metales Cd+2 y Pb+4 se determinaron por espectrometría de plasma de emisión óptica con ICP-OES. Las variables estudiadas se analizaron con un test de coeficientes estandarizados al 95% de intervalo de confianza y se obtuvo para la humedad 6,33 %; el pH 6,24; el porcentaje de acidez 1,17 %, la determinación del índice de semilla 1,32; la determinación del índice de mazorca 21,94; la determinación del número de almendras por mazorca 40,43; la determinación del peso de 100 almendras 136,34 y la determinación del porcentaje en testa 19,12 %. Los valores promedio de concentración de Cd+2 en las diferentes fases de post-cosecha de cacao fueron 0,89 mg.kg-1 para el mucílago, 0,73 mg.kg-1 para el fermentado y 0,95 mg.kg-1 para la almendra seca; así mismo los valores de concentración de Pb+4 fueron para el mucílago 0,38 mg.kg-1; para el fermentado 0,37 mg.kg-1 y para la almendra seca 0,60 mg.kg-1. Determinándose que estos valores se ubican por encima de los estipulados por el Reglamento (CE) Nº 1881/2006. La presente investigación tiene como objetivo evaluar el contenido de metales pesados Cd+2 y Pb+4 mediante espectrofotometría de emisión atómica con plasma inductivamente acoplado en almendras de cacao durante el proceso de beneficiado en la provincia de Manabí.
DETERMINATION OF THE LIMITS OF PUBLIC CONTROL IN THE RUSSIAN FEDERATION: CONSTITUTIONAL AND LEGAL ANALYSIS
Authors: Гончаров Виталий , Goncharov Vitaliy
Published: October 2019

This article is devoted to the study of one of the most important problems impeding the effective functioning of public control in the Russian Federation - the definition of its limits. In work the analysis of the limits of social control (spatial; time of implementation; the completeness of filling (according to his principles, purposes and tasks, forms, objects, and powers of the constituent entities and their amounts); the evaluation from the perspective of legality and legitimacy of the activity). The author has developed and justified measures to improve the current Russian legislation regulating the issues of public control. The article uses a number of methods of scientific research, in particular: analysis; synthesis; classification; comparison; formal-legal; method of legal modeling; analysis of theoretical and regulatory sources; legal; formal-logical.
TO THE QUESTION OF THE APPLICATION OF MATHEMATICAL METHODS IN LEGAL SCIENCE
Authors: Осипов Михаил , Osipov Mikhail
Published: October 2019

The problem of application of mathematical methods in legal science is one of the actual problems facing modern legal science. The urgency of this problem is connected with the recent appearance of a series of works devoted to the possibilities of applying mathematical methods in jurisprudence. The purpose of the study is to determine the possibilities of applying mathematical methods in legal science and to evaluate their possible scientific potential. The main objectives of the study include: identifying the specificity of the application of mathematical methods in legal science, determining the scientific potential of mathematical methods (identifying those patterns that can be identified using mathematical methods), determining the possible range of problems facing legal science solved with the help of mathematical methods.

Among the research methods used in writing this article are: general scientific methods: analysis, synthesis, induction, deduction, abstraction, generalization; special methods: formally - legal and comparative - legal approach.

In the course of the study it was concluded that the use of mathematical methods in legal science is possible when analyzing both the quantitative and qualitative aspects of legal phenomena. Moreover, if the quantitative aspect of legal phenomena can be investigated using the methods of mathematical statistics and classical mathematical methods, then the qualitative aspect of legal phenomena can be investigated using binary matrices. The study also showed the possibility of using binary matrices and classical mathematical methods in analyzing the effectiveness of legal regulation.
CORRELATION OF ECONOMIC SECURITY AND NATIONAL SECURITY: THEORETICAL ASPECT
Authors: Пенькова Ангелина , Pen'kova Angelina , Кухарев Юрий , Kuharev uriy , Малогорская Инесса , Malogorskay Inessa , Котельникова Лилия , Kotelnikova Liliy
Published: October 2019

Relevance of the topic. The most important part of the overall national security system is economic security, which affects almost all aspects of the life of the state, society and economy. There is a close relationship between economic security and the system of national public interests. Consideration of the designated topic as the most important unit in the system of national security is primarily due to the fact that the economy is the basis of the life of society, the state, the individual, the sustainable development of the country as a whole.

Purpose: to Consider approaches to the concepts of "national security" and "economic security" and to determine the place of economic security within the framework of national security.

Objectives: to explain the concept of "economic security" and national security", to consider the relationship between these definitions, to study the "Strategy of economic security of the Russian Federation."

Methodology. Empirical and theoretical methods of knowledge of the surrounding economic reality. Methods of scientific abstraction, ascent from abstract to concrete, economic analysis and synthesis, inductive and deductive methods were used in the work.

Results. The strategy of economic security of the Russian Federation until 2030 is considered. For any country, the most important component of national security is economic security.

In the works of domestic scientists, the term "national security" and "economic security" are often removed from the category of "security". The variety of interpretations of this term can be explained by the fact that the category of "security" is defined ambiguously, allows for different interpretations.

Summary. In modern conditions, the relationship of economic security within the framework of national security has not lost its relevance, while their importance increases due to the aggravation of contradictions, as well as in connection with the crisis phenomena in the world economy.
BEKLENEN YAŞAM SÜRESİNİN BELİRLEYİCİLERİ: JAPONYA ÖRNEĞİ ÜZERİNE EKONOMETRİK BİR İNCELEME / The Determinants Of Life Expectancy: An Econometric Analysis For Japan
Authors: SEY Nurbay , AYDIN Bayram
Published: October 2019

Bu çalışmada, dünyada en yüksek yaşam beklentisine sahip ülke olan Japonya örneği özelinde sigara tüketimi, alkol tüketimi ve obezitenin beklenen yaşam süresi üzerindeki etkileri araştırılmıştır. İlgili literatür incelendiğinde konuyla alakalı bazı çalışmaların yapıldığı görülmektedir. Ancak, yapılan çalışmalar yeterli düzeyde olmadığı tespit edilmiş ve değişkenlerin yaşam süresi üzerinde hangi boyutlarda bir etki yarattıkları sayısal olarak ortaya konmamıştır. Bu çalışmada, 1980-2016 dönemindeki yıllık veriler ile değişkenler arasındaki uzun dönemli ilişkinin tespiti için ARDL sınır testi yaklaşımı kullanılmıştır. Elde edilen bulgulara göre, beklenen yaşam süresi ile sigara tüketimi, alkol tüketimi ve obezite arasında uzun dönemli eşbütünleşme ilişkisi vardır. Sigara tüketimi, alkol tüketimi ve obezitenin beklenen yaşam süresi üzerinde negatif bir etkiye sahip olduğu istatistiksel olarak saptanmıştır. Ayrıca yapılan analizde beklenen yaşam süresini negatif etkileyen en önemli unsurun obezite olduğu sonucuna ulaşılmıştır. Sigara tüketimi ve alkol tüketiminin de beklenen yaşam süresini önemli ölçüde olumsuz etkileyen unsurlar olduğu anlaşılmaktadır.
MUHASEBE MESLEK MENSUPLARININ YARATICI MUHASEBE ALGI DÜZEYLERİNİN TESPİTİ: ÇORUM İLİ UYGULAMASI / Determination Of Creative Accounting Perception Levels Of Accounting Professionals: Çorum Province Application
Authors: AKDOĞAN Habib , SÜKLÜM Nurcan
Published: October 2019

Muhasebe, işletme faaliyetleri ile ilgili bilgi üreten ve bilgiyi kullanıcılarına sunan bir sistemdir. Bu süreçte üretilen bilgilerin, tarafsız, zamanlı ve gerçeğe uygun olması bilgi kullanıcıları açısından önemlidir. Ayrıca bağımsız denetimden geçmiş olması da bilginin niteliğini belirlemektedir. Ancak zaman zaman bu bilgiler olduğundan farklı sunulabilmektedir. Bu bilgilerin gerçeğe uygun bir şekilde üretilip sunulmasında muhasebe meslek mensuplarının büyük bir payı bulunmaktadır. Çalışmanın amacı, Çorum ilinde faaliyet gösteren muhasebe meslek mensuplarının yaratıcı muhasebe uygulamaları hakkındaki algı düzeylerinin tespit edilmesidir. Bu amaçla anket çalışması yapılmış ve elde edilen veriler SPSS 20.0 paket programı aracılığı ile analiz edilmiştir. Çalışmada Frekans Analizi ve ankete katılan meslek mensuplarının yaratıcı muhasebe algıları ile demografik özellikleri arasında anlamlı bir fark olup olmadığının test edilmesi için Bağımsız İki Örnek T-Testi, Tek Yönlü Varyans Analizi ve Kruskal-Wallis Testi yapılmıştır. Çalışma sonucunda katılımcıların cinsiyet ve faaliyet yeri değişkeni ile yaratıcı muhasebe algıları arasında anlamlı bir fark bulunmuştur.
ENDÜSTRİ 4.0’IN MUHASEBE MESLEĞİNE OLASI ETKİLERİ / Possible Effects Of Industry 4.0 On The Accounting Profession
Authors: TUTAR Salih
Published: October 2019

2011 yılında Almanya’nın açıklamış olduğu Endüstri 4.0 ile yeni bir döneme
geçilmiştir. Endüstri 4.0 ile üretim zincirindeki tüm halkaların birbiriyle
entegre olan, sürekli etkileşim ve iletişim içinde bulunan, sensörler
aracılığıyla ortamı algılayabilen, veri toplayan ve analiz ederek ihtiyaçları
belirleyen robotlarla üretimin gerçekleştirilmesi sonucunda daha kaliteli,
hızlı, esnek ve daha düşük maliyetli üretimin gerçekleştirilmesi tasarlanmaktadır.
Ürün geliştirme aşamasında;  tasarımdan gerekli malzeme kullanımına,
pazarlamadan sevkiyata birçok süreçte daha şeffaf ve birbirine bağlı bir sistem
kurulacaktır. Endüstri 4.0’ın piyasaların ve sektörlerin birçok alanını
etkilemesi beklenmektedir. Bu alanlardan biri olan muhasebe mesleğini de
etkileyeceği/değiştireceği ortadadır. Bu sebeple bu çalışmada kavramsal açıdan
Endüstri 4.0 ve getirdiği yenilikler incelenmiş, günümüz muhasebecilik
mesleğine olası etkilerinin neler olabileceğine ilişkin tespitler yapılmıştır.  Muhasebe bilgi sisteminde ve faaliyetlerinde yaşanan değişimlerle süreç
daha hızlı, daha şeffaf, anlık olarak erişilebilir ve daha verimli hale
gelmektedir.
ELEKTRİK TÜKETİMİNİN SÜRDÜRÜLEBİLİR KALKINMAYA ETKİSİ: TÜRKİYE ÜZERİNDE AMPİRİK VE DAVRANIŞSAL BİR İNCELEME / The Effect Of Electricity Consumption On Sustainable Development: An Empirical And Behavioural Investigation On Turkey
Authors: ÇINAR Mehmet , YETKİN Fikret , BEKTAŞ Selahattin
Published: October 2019

Sürdürülebilir kalkınma, gelecek nesillerin ihtiyaçlarını karşılama olanaklarını ellerinden almadan; şimdiki neslin ihtiyaçlarının karşılanabildiği gelişme süreci olarak tanımlanmaktadır. Dolayısıyla ülkede büyüme kavramının yanı sıra kalkınma kavramının da ne kadar önemli olduğu ifade edilmektedir. Bu çalışmanın amacı, elektrik tüketimini diğer çalışmalardan farklı olarak büyüme endeksiyle değil kalkınma endeksiyle olan ilişkisi belirtilmek istenmiştir. Çalışmada, 1970-2017 yılları arası İnsani Kalkınma Endeksi ile kişi başı elektrik tüketim miktarı verileri kullanılmıştır. Türkiye’de kalkınma ile elektrik tüketimi arasındaki ilişki yapısını ortaya konması amaçlanmıştır. Kalkınma değişkeninin durağan, elektrik tüketimin ise durağan-dışı olmasından ötürü ARDL sınır testi ve Toda-Yamamoto nedensellik sınamaları kullanılmıştır. Yapılan Veri, Model ve Ampirik analizinden elde edilen sonuçlara göre; kalkınma ile elektrik tüketimi arasında uzun dönemli bir ilişki olduğu yönündedir. Bu ilişkinin yönünü belirlemek amacıyla kullanılan Toda-Yamamoto nedensellik sınaması, elektrik tüketiminden kalkınmaya doğru bir nedensellik olduğunu göstermektedir.
Değer ve Değerleme Hakkında Kavramsal ve Kuramsal Bir Çalışma
Authors: GÖZEN Mustafa
Published: October 2019

Değer ve değerleme, her iki kavram da eski çağlardan itibaren
üzerinde tartışılan ve haklarında farklı yaklaşımların geliştirildiği kavramlar
olmuştur. Bu makalede farklı disiplinlerin değer ve değerleme kavramına bakışı
incelenmiştir. Psikoloji disiplini değeri sadece bir inanç olarak ele almaktadır.
Felsefe değer kavramını, değerlemesi yapılacak nesneye ve değerlemeyi yapacak
özneye bağlı olarak değişen, mutlak olmayan bir kavram olarak ele almaktadır.
Sosyoloji değer konusunu nesnel bakış açısından incelemekte ve sosyologlar
tarafından değerin belli bir toplumun tercih ettiği eylem ve davranış normlarına
bağlı olduğu ifade edilmektedir. Ekonomi disiplininde değerin açıklanmasında,
emek, fayda ve kıtlık kavramları kullanılmıştır. Modern ekonomi açısından ise
değer artık tercihler ve kayıtsızlık eğrileri kapsamında ele alınmaktadır.
Finans disiplininde değer kavramı zaman boyutunda bugün yerine geleceğe
odaklanılarak açıklanmaya çalışılmaktadır. Finans disiplininde şirketin
değerlemesi gerçekte onun değerinin ya varlıklar bazında ya da geliri bazında
değerlemesi olarak ele alınmaktadır. Günümüzde değerleme işi öğrenilmesi ve
uzmanlaşılması gereken bir disiplin haline gelmiştir. Bu bakımdan değerleme her
zaman gündemde olan ve etkin yönetilmesi gereken bir kavram olmaktadır.
Growth of Tin Oxide Thin Film by Aluminum and Fluorine Doping Using Spin Coating Sol-Gel Techniques
Authors: Susilawati Susilawati , Doyan Aris , Muliyadi Lalu , Hakim Syamsul
Published: October 2019

Abstract: The growth of tin oxide thin film by Aluminum doping and Fluorine has been carried out with the sol-gel spin coating technique. The growth aims to determine the quality of the thin layer formed based on variations in doping aluminum and fluorine. The basic ingredients used were SnCl2.2H2O, while the doping materials used were Al (Aluminium) and F (Fluorine) with variations in dopant concentrations (0, 5, 10, 15, 20 and 25)%. The growth of a thin layer using measured glass (10x10x 3) mm as a substrate. The growth of thin films includes substrate preparation, sol-gel making, thin film making, and heating processes. The growth of thin layer was dripped on a glass substrate with sol-gel spin coating technique at 1 M sol concentration and treated with maturation for 24 hours. The next step is making a thin layer using a spin coater at a speed of 2000 rpm for 3 minutes. After that, the substrate is heated in an oven at 100°C for 60 minutes. The results showed that the transparency level of the tin oxide layer increases with increasing amounts of doping Aluminum and fluorine. Key words: Aluminum, Fluorine, Sol-gel, Spin Coating, Thin Film, Tin Oxide
Pengaruh Perubahan Diameter Lubang Saluran Keluar Jetmain dari 2,5 mm menjadi 2,8 mm pada Karburator terhadap Kinerja Mesin Bensin Empat Langkah Satu Silinder pada Sepeda Motor
Authors: Wardoyo Wardoyo , Sukendro Andi Putro
Published: October 2019

This study aimed to compare the influence of the hole diameter of the outlet of the main jet from 2.5 mm to 2.8 mm on the carburetor to the engine performance and fuel consumption.The test is performed with the brand gasoline motor honda tiger type GL 200 R  four-stroke single cylinder. The materials studied were the main jet. Tests performed with standard conditions in without making any changes. Testing machine at the ready on a dynamometers test bed. Then do the testing phase and retrieval of data that is torque and fuel consumption. Torque (Nm) play a modified jet yield increase of 2.2% from the main jet standard. Power (kW) jet modification produces a maximum power of around 2.2% of the main jet standard. The rate of fuel consumption (mf) on the main jet modification is greater than the main jet standard. Fuel consumption (sfc) on the main jet modification will further increase the standard of the main jet. Calorific fuel (Qi) in the main jet modification is greater than the main jet standard. Jet played modifications that do not significantly change the main jet standard.
Pengaruh Paduan Serbuk Fe12% pada Aluminium terhadap Porositas dan Struktur Mikro dengan Metode Gravity Casting
Authors: Sumpena Sumpena
Published: October 2019

The purpose of this research is to know the effect of Fe12% powder alloy on aluminum to porosity and micro structure by gravity casting method. Metal Matrix Composite (MMC) is an engineering material formed from the combination of two or more materials to obtain new materials with better properties. Making of composite material with aluminum matrix or metal matrix composite (MMC) can be done by casting method. The composite forming elements are called boosters (fibers or particles) and binders (matrices). In the process of casting metal can occur porosity In the casting process with sand molds usually occur porosity, causing the mechanical properties of casting objects decreased. Porosity is caused by bubbles of gas, gas released by the core when exposed to metal liquid heat, resulting in pores or perforated defects.The process of smelting was carried out at the metal foundry laboratory of Mechanical Engineering UP 45 Yogyakarta. The smelting process uses a krusible furnace with coke fuel, on which it is placed kowi to place aluminum and iron powder to be melted. Aluminum and 12% iron powder are weighed in accordance with the volume of the pattern, so that the melt does not suffer from metal deficiency. Observation of porosity is done by looking visually on each side of the outer part of the casting object. Observation of microstructure using optical microscope is done by taking three samples of specimen castings that have been in the preparation of polishing machine and etching. The effect of Fe 12% alloys on porosity is the average porosity occurring on specimens A, B and C of 2,766 gr / cm3. The effect of Fe 12% alloys on micro structure is the spreading of Fe, Si and Mg elements evenly, but for the C specimens of Fe and Si bersenyawa, while the Al and Mg elements are separate.
Analisis Sifat Fisik dan Mekanik Sambungan Las Oxy-Acetylene pada Pelat Baja Karbon Rendah dengan Variabel Nyala Torch Karburasi
Authors: Wisnujati Andika , Nurhuda Ahmad
Published: October 2019

Oxy-acetylene welding is widely used in small workshops for car body repair, automobile and motorcycle exhaust, and other improvements using a maximum temperature of 3000oC that can not be done through another process. The purpose of this study was to analyze the effect of torque oxyacetylene flame carburizing on the physical-mechanical properties of low carbon steel plate welding joints. The method employed by using a low carbon steel plate 2 (two) pairs in a butt weld immension of 300 mm x 75 mm x 1 mm. After welding with oxy-acetylene in torch carburizing flame, the specimens were examined through physical observation including microstructure and echanical properties. Micro hardness vickers (VHN) was used to evaluate the harness and tensile properties was determine using the universal testing machine. In the microstructure testing, there is a pearlite and ferrite whose become different dimensions as it is affected by the heat and air pressure of the weld. The result of tensile strength specimen A 174,6 N/mm2 and specimen B 157,65 N/mm2. While the vickers test obtained the highest hardness that is 152.5 VHN in the welding area.
Pengaruh Variasi Temperatur Hardening dan Tempering Paduan AlMgSi-Fe12% Hasil Pengecoran terhadap Kekerasan
Authors: Sumpena Sumpena , Wardoyo Wardoyo
Published: October 2019

The purpose of this research is to know the effect of Heat Treatment Hardening-Tempering Alloy AlMgSi–Fe12% foundry result to hardness and toughness. The test was carried out on raw material and material test specimen after obtaining Hardening heat treatment at 600℃ and quenching with SAE 20 oil medium. While Tempering variation at temperature 200℃, temperature 250℃ and temperature 300℃ with detention time for 15 min at each temperature, each heat treatment. Hardness testing method is done by standard micro Vickers test method with 100 gf loading. The result of raw material testing for hardness value is 60,92 VHN. Test results after heat treatment process at temperature 200℃ cause hardness value increased by 63,50 VHN. At temperature 250℃ cause hardness value decreased to 59,94 VHN. At temperature 300℃ cause hardness value increase to 76,98 VHN
Studi Eksperimental Pengaruh Variasi Sudut Kemiringan terhadap Temperatur Onset Termoakustik Generator Gelombang Berdiri dengan Panjang Resonator 780 mm
Authors: Anugrah Rinasa Agistya
Published: October 2019

Onset temperature is one of the most important parameters in thermoacoustic generator to be researched. In that application, onset temperature can representated how many the performance of this device, if seen by input energy, used the system of the thermoacoustic generator. Decreasing onset temperature so decreases the energy that used to generate acoustic energy in thermoacoustic generator. In this researched would be done research of variation of tilted angles -90º, 0º, dan 90º with constant 780 mm of resonator length. The method used two thermocouples installed between the stack side to measure temperature of HHX and CHX, and the ΔT called onset temperature. It would be found the effective tilted angle that used, so the performance is on the best value represented by the least onset temperature. The result is when the tilted angle decrease so the onset temperature became decreased too. In this research, if seen by the input energy, the best performance of thermoacoustic generator is on -90º of tilted angle.
Desain Model Fuzzy Control UAV Berbasis Matlab/Simulink pada Arduino Flight Controller
Authors: Malik Muchamad , Burhanuddin Aan
Published: October 2019

Quadrocopter is an aerial vehicle platform that has become very popular among researchers from the past because it has advantages compared to conventional helicopters. The quadrocopter design is very simple and unique but seen from an unstable aerodynamic standpoint. From existing research, researchers have proposed many control system designs for quadrocopter. In this study, the author presents a fuzzy logic controller for quadrocopter. The method in this research is by designing hardware. After that the design for fuzzy controllers. Then the designed fuzzy controller is tested in the Hardware In Loop (HIL) setting. The experimental results and validation of the controller application functions are considered satisfactory and it is concluded that it is possible to stabilize quadrocopter with fuzzy logic controller.
Desain Pencacah Serabut Kelapa dengan Penggerak Motor Listrik
Authors: Priono Handoko , Ilyas Muhammad Yusri , Nugroho Aditya Riska , Setyawan Dimas , Maulidiyah Laili , Anugrah Rinasa Agistya
Published: October 2019

Diesel Motor is a type of piston combustion motor commonly called Ignition Compression Engine Combustion Engine. The use of coconut fiber chopper machines using diesel drive engines in the market has not been able to increase consumer comfort and efficiency. Because of this issue that emits CO2 and NOx also causes air pollution and noise emissions, it tends to be relatively large and also requires intensive care that requires a lot of space and costs. This will renew the surrounding environment and allow user comfort and efficiency when running the machine. Therefore, it is necessary to have an efficient and optimal coconut fiber chopping machine by reducing noise so that it is not noisy and pollution-free. The coconut fiber enumerator with an electric motor drive is an enumerator of coconut fibers with an electric motor as a solution for making household products and agricultural fertilizers to increase comfort and efficiency for consumers so as to increase economic value in the community. This research method begins with making a tool consisting of a study of literature, measuring each component of the tool consisting of a frame, eye drive, motor drive, filter and pulley and designing the design model. Trial on a no-load blade shaft rotation of 450 rpm. At the time of enumeration, the shaft rotation is reduced to around 350-400 rpm and the linear velocity of the V-Belt is 3.9 m / s. From the coconut fiber chopper with an electric motor drive it causes low vibration, does not cause pollution nor is it efficient.
Model Delone dan McLean Untuk Menguji Kesuksesan Aplikasi Mobile Penerimaan Mahasiswa Baru
Authors: Agustina Nani , Sutinah Entin
Published: October 2019

Penerimaan Mahasiswa Baru (PMB) merupakan kegiatan wajib  setiap tahun yang  dilakukan oleh setiap Perguruan Tinggi, baik Pergurauan Tinggi Negeri maupun Perguruan Timggi Swasta. Segala informasi tentang kententuan pendaftaran, mengikuti ujian saringan, jadwal orientasi akademik serta bukti pendaftaran mahasiswa baru, kegiatan-kegiatan tersebut dilakukan dalam sebuah aplikasi berbasis mobile dengan nama mobile aplikasi PMB BSI. Aplikasi tersebut diterapkan dalam proses penerimaan mahasiswa baru pada periode 2017/2018. Perlunya pengukuran atas kesuksesan penerapan aplikasi tersebut seberapa efektif manfaatnya dalam menunjang pengolahan data pada proses penerimaan mahasiswa baru, maka dari itu penulis mencoba menggukur kesuksesan dari pengunaan aplikasi tersebut  dengan metode Delone and McLean, menggunakan enam variable diantaranya Informasi Quality, Service Quality, System Quality, Actual Use, Use Safisfaction, Net Benefit (Individual Impact), dimana dari variable-variabel tersebut terdapat 25 indikator yang digunakan dalam pertanyaan. Berdasarkan hasil uji coba, diketahui bahwa aplikasi berbasis mobile PMB dilakukan dengan mahasiswa baru fakultas Ekonomi dan Bisnis yang terdiri dari 133 populasi, selanjutnya diambil 100 responden untuk diambil sebagai sample penelitan. Dalam penelitian ini penghitungan validitas semua variable semuanya valid dikarenakan semuanya lebih besar dari r tabel = 0,195. Selanjutnya untuk perhitungan reliabelitas sebanyak 0,917, sehingga dengan kondisi seperti ini maka aplikasi mobile PMB sudah dapat dipercaya dalam tingkat sistem dan informasi.
Fuzzy Analytical Hierarchy Process (FAHP) Ekspansi Untuk Inovasi Kerangka Pengukuran Kinerja
Authors: Sari Indah Purnama , Mawengkang Herman , Efendi Syahril
Published: October 2019

Inovasi adalah prioritas atau langkah yang sangat utama bagi sebagian besar perusahaan. Kebutuhan inovasi semakin meningkat terbukti didunia perusahaan saat ini, dan tujuan inovasi adalah untuk menciptakan nilai bisnis pada suatu perusahaan. Terutama perusahaan-perusahaan barat diindonesia khususnya dalam menghadapi persaingan yang tinggi karena terus menerus globalisasi. Tentu hal ini membawa fokus untuk membuat inovasi lebih komperehensif agar dapat secara efektif mengelola dan memperbaikinya. Kebutuhan akan inovasi menjadi semakin jelas diindonesia saat ini. Fuzzy Analytic Hierarchy Process (FAHP) Ekspansi adalah teknik terstruktur untuk mengatur dan menganalisis keputusan yang kompleks. Penelitian ini memberikan pedoman umum untuk mengevaluasi hubungan antara kriteria dengan menggunakan Fuzzy Analytical Hierarchy Process (FAHP)
Implementasi Darurat Keamanan dan Kesehatan Berbasis Mobile di Desa Waru Barat Pamekasan
Authors: Syahroni Abd. Wahab , Ubaidi Ubaidi
Published: October 2019

Penelitian ini membahas tentang pemberian informasi keamanan dan kesehatan warga kepada aparat desa secara digital menggunakan smartphone android di desa waru barat, kabupaten pamekasan, madura, jawa timur. Penerapan aplikasi ini akan memberikan respon yang cepat oleh aparat desa terhadap laporan tindakan kejahatan dan kesehatan yang dialami oleh warga. Pengembangan aplikasi dalam penelitian ini menggunakan metode prototyping. Beberapa langkah dalam pengembangan aplikasi menggunakan metode prototyping antara lain initial requirement, design prototyping, protototype, client evaluation, review and updating, development, test dan maintain. Fitur yang terdapat dalam aplikasi ini antara lain laporan darurat keamanan dan laporan darurat kesehatan. Ketika warga menekan tombol darurat keamanan maka aplikasi akan mengirim data GPS warga melalui bantuan Application  Programming  Interface  (API)  di  Google Maps ke server aplikasi yang terdapat di balai desa, aparat desa akan mengkonfirmasi laporan dan akan meneruskan kepada petugas keamanan. Petugas keamanan akan menuju ke lokasi yang diberikan. Demikin juga dengan laporan kesehatan, ketika warga menekan tombol darurat kesehatan, maka aplikasi akan mengirim data GPS warga ke server aplikasi yang terdapat di balai desa, aparat desa akan mengkonfirmasi laporan dan akan meneruskan kepada petugas kesehatan. Petugas kesehatan akan menuju ke lokasi yang diberikan. Aplikasi ini telah di uji coba di desa waru barat. Dari hasil ujicoba menggunakan metode blackbox dapat disimpulkan bahwa semua fungsionalitas sistem sudah dapat berjalan dengan baik. Sedangkan hasil survei menggunakan skala likert terhadap 100 warga mengenai kepuasan terhadap penggunaan aplikasi ini adalah setuju, ditunjukan dengan nilai indeks kepuasan bernilai 70,8%
HUBUNGAN SELF-EFFICACY DAN SIKAP POSITIF TERHADAP PRESTASI AKADEMIK SISWA SMK NEGERI 1 SIPIROK
Authors: Siregar Yulia Anita , Sukatno Sukatno
Published: October 2019

Self-efficacy is a person's feelings, ways of thinking, self-motivation, and desire to have something, while a positive attitude means in the learning process students have a tendency to accept or reject a concept or idea, if not in accordance with his mind. Students can think and be positive if if a learning can provide real benefits for life. While the academic achievement is the result of behavioral changes that include the cognitive domain, affective domain and psychomotor domain which is a measure of student success after being given treatment or learning. This research was conducted at SMK Negeri 1 Sipirok. This study uses descriptive research method with correlational approach with the aim to know whether there is a significant relationship between self-efficacy and positive attitude toward student academic achievement. Based on the research that has been done, the research results found that there is a significant relationship between self-efficacy and positive attitude of students to the academic achievement in SMK Negeri 1 Sipirok Tapanuli Selatan but the relationship is not showing increase or decrease so it can be said academic achievement is not important enough in pushing self-efficacy and positive attitude of students.
MENINGKATKAN KEMAMPUAN GURU KELAS DALAM MENCAPAI HASIL BELAJAR MATEMATIKA MELALUI MODEL QUANTUM TEACHING DI SD NEGERI 026408 BINJAI
Authors: Pasaribu Mida Mawarni
Published: October 2019

This study aims to find out how to do the coaching ability of teachers to improve student learning outcomes Elementary School Mathematics 026 408 by using model study of Quantum Teaching. This research is a school action. The approach used in this study is a qualitative approach to the type of action research school. The subjects were 026 408 primary school teachers Binjai with number 6 teachers. Data from this study were collected through test results and the results of observation. Results lesson using Quantum Teaching methods result: On average Pre cycle learning outcomes in class was 55.00 so do the implementation of the first cycle with the average value obtained was 65.00, an increase of 10.00 and from the first cycle the second cycle to 65.00 into 90.00 is also an increase of 25.00. Thus in accordance with the criteria established that the model of Quantum Teaching can improve the learning outcomes of teachers on the subject of the rectangle.
METODE BUZZ GROUP DISERTAI MEDIA KELERENG SEBAGAI UPAYA MENINGKATKAN HASIL BELAJAR MATEMATIKA SISWA KELAS I SD NEGERI 023898 BINJAI UTARA
Authors: Sufriati Sufriati
Published: October 2019

This study aims to find out how to improve the results of mathematics learning on the subject of summing in integers through Buzz Group method along with media Kelereng on the students of class I SD Negeri 020580 Binjai. And how the creativity and ability of teachers in implementing learning in the classroom. The result of this research concludes that the result of student learning in learning through Buzz Group method is On cycle I the good categorization value reaches only 20%. That means that a small part of the first cycle is more increased than before the improvement of learning. Nevertheless, the less categorized students are still in the most process that is 40% and the categorized is as much as 40% that finally in the second cycle the number of students who are categorized moderate and less should decrease. In cycle II, good categorized value is much more and melngalami significant achievement increase that reaches 80%. then the students who get the category is 20%. After the main problems in the improvement of learning on the cycle I and II implemented, the authors were satisfied with the increase in student value on the implementation of improvement learning in cycle II seen in the moderate category decreased and the absence of students who got less value
PENGARUH PENERAPAN MODEL PEMBELAJARAN AUDITORY INTELLECTUALLY REPETITION (AIR) TERHADAP KEMAMPUAN KOMUNIKASI MATEMATIKA SISWA DI KELAS VIII SMP NEGERI 1 PASIR PENYU
Authors: Mustika Helma , Kinanti Nuri
Published: October 2019

Abstract. This research is based on the students' mathematical communication ability at SMP Negeri 1 Pasir Penyu which is still low. To overcome the problem is applied learning model Auditory Intellectually Repetition (AIR). This study aims to determine the ability of students' mathematical communication using the learning model of Auditory Intellectually Repetition (AIR). This research type is quasi experiment research. The research design used was randomized subjects posttest only control group design. The sampling technique used is cluster random sampling. After the sample was taken randomly, the students selected VIII.6 class as experimental class and students of class VIII.5 as the control class. The instrument in this research is a test of students' mathematical communication skill. The data analysis technique used Independent Samples T-Test (t-test) test. Based on hypothesis test results obtained that tcount = 5,065> ttable = 2.002 with (df = 60) and a real level of 5%. Reject H0 if thitung value is ttable. So it can be concluded that the mathematical communication skills of students using the learning model of Auditory Intellectually Repetition (AIR) is better than the students' mathematical communication skills using conventional learning model. Keywords: Auditory Intellectually Repetition (AIR), mathematical communication.
PENGGUNAAN MODEL PEMBELAJARAN TIME TOKEN TERHADAP PEMAHAMAN KONSEP MATEMATIKA SISWA KELAS VIII SMP
Authors: Junedi Beni , Anggiani Novita
Published: October 2019

Abstract. This research was motivated by the understanding of mathematical concepts class VIII SMPN 3 Pasir Penyu still low. This study aims to determine student’s understanding of mathematical concepts using time token learning model is better than the students understanding of mathematical concepts using convensional learning in class VIII SMPN 3 Pasir Penyu. This study design was randomized control group only design. This study population was students all class VIII, the sample is class VIII3 and VIII4. Data were analyzed using test-t, analysis result obtained tcount > ttable is 2.995 > 2.002, it can be concluded that the understanding of the mathematical concepts of student with the use of time token learning model better than an understanding of the mathematical concepts of students with the use of convensional learning in class SMPN 3 Pasir Penyu.Keywords: Time token, understanding of mathematical concepts.
PENERAPAN MODEL PEMBELAJARAN INKUIRI BERBASIS KONSEP JUAL BELI TERHADAP RESPON SISWA PADA MATA PELAJARAN STATISTIKA
Authors: Fitriani Fitriani
Published: October 2019

Abstract. Learning is the process of interaction between students and their environment so that there is a change in behavior towards a better direction. So that in generating a positive response it is necessary to improve the learning model. This research was conducted at the fifth grade IT FAZA AZKIA Elementary School, Kelurahan Hutaraja, Kabupaten Tapanuli Selatan, Provinsi Sumatera Utara. Research uses classroom action research. The study aims to determine how students respond to the use of inquiry-based learning models based on the concept of buying and selling on statistical material. This research resulted in the response of students in the first cycle still not achieving a minimum score of 80%. While the response of students in cycle second the entire response of students has reached a minimum value of 80%. So that the response of students has been positive and this has increased from cycle I to cycle II.Keywords: Student Response, Inquiry Learning Model, Buying and Selling Concept
PENINGKATAN KEMAMPUAN PEMAHAMAN KONSEP MELALUI METODE PENEMUAN TERBIMBING BERBANTUAN SOFTWARE AUTOGRAPH PADA MATA KULIAH KALKULUS PEUBAH BANYAK DI FKIP UMSU
Authors: Batubara Ismail Hanif
Published: October 2019

Abstract. The purpose of this study was to find out: (1) Is the improvement in students' understanding of mathematical concepts given guided discovery method assisted by software Autograph higher than students who were given guided discovery method learning without Autograph software, (2) Is there an interaction between learning with students' initial mathematical ability to increase the ability to understand student mathematical concepts. This research is a quasi-experimental study. The population of this study is that all classes in the fourth semester mathematics education study program are approximately 184 people. Randomly, two classes were selected from six classes. The experimental class was treated with a guided discovery method assisted by autograph and control class given a guided discovery method without the help of autograph. The instrument used is a description test. Data analysis was performed by analysis of two-way variance (ANAVA). The results showed (1) Increased ability to understand mathematical concepts of groups of students who obtained guided discovery method learning using Autograph software higher than the group of students who received learning through guided discovery methods without software autograph. (2) There is no interaction between the learning model and the initial ability of students to increase the ability to understand students' mathematical concepts.Keywords: ability of concept understanding, Guided Discovery Method, Autograph Software.
PENERAPAN MODEL PEMBELAJARAN CIRCUIT LEARNING TERHADAP KEMAMPUAN KOMUNIKASI MATEMATIS SISWA KELAS X SMA N 1 PASIR PENYU
Authors: Fitri Ramadhani , Agusfitriani Agusfitriani
Published: October 2019

Abstract. This study aims to determine students' mathematical communication skills using the Circuit Learning learning model. This research is a Quasi Experiment study with the design of the Randomized Subjects Posstest Only Control Group Design. The study population was all students of class X SMA N 1 Pasir Penyu. The sampling technique uses random sampling. The instrument used was a mathematical communication ability test in the form of a description. Data were analyzed statistically by the Independent Samples T-Test. Based on the results of the t test, tcount in the rejection area of H0 can be concluded that the mathematical communication skills of students taught with the circuit learning learning model are better than conventional learning.Keywords: Mathematical Communication, Circuit Learning.
RESPON SISWA TERHADAP PEMBELAJARAN MATEMATIKA REALISTIK DENGAN KONTEKS BUDAYA BATAK TOBA
Authors: Simanjuntak Sinta Dameria , Imelda Imelda
Published: October 2019

Abstract. The problem examined in this study is how students respond to realistik mathematics education that uses the context of Toba Batak culture in teaching and learning activities. The aim of the researcher to analyze students' responses to realistik mathematics education using the context of the Toba Batak culture is to find out whether the responses given by students are positive or negative. Student responses are said to be positive if students feel happy about the components of learning used, the learning component used is new, students are interested in carrying out the same learning in later learning and students are interested in the learning components used. The research results obtained are students giving positive responses to realistik mathematics education using the context of Toba Batak culture. In other words, students happy with the components of learning, the learning component used is new, students are interested in carrying out the same learning in later learning and students are interested in the learning components used.Keywords: RME, Responses, Toba Batak Culture
PENGGUNAAN STRATEGI PEMBELAJARAN AKTIF EVERYONE IS A TEACHER HERE (ETH) TERHADAP KEMAMPUAN PEMAHAMAN KONSEP MATEMATIKA SISWA KELAS VII
Authors: Ningsih Sri Yunita , Gustimalasari Gustimalasari
Published: October 2019

Abstract. This research has been made to know skill of student’s concept by using active learning strategy everyone is teacher here (ETH). Beside that this study aims to measure student’s concept understanding with statistical test between Experimental Class (Active Learning Strategy Everyone Is Teacher Here) and control class (Conventional Learning ). The population was seventh grade of SMPN 3 Lirik consist 94 students in three classes. Sample was took randomly, experiment class ( VII.2 ) and control class ( VII.I ) This research was experiment, the form of this research was Quasi Experimental Design with randomized subject posttest only control group design. based on statistic data processing has been retrieved - t hitung -3,159 smaller than - t table was -2,000 and based on t test has been retrieved -thitung < -t table so Ho rejected and Ha received. So that the writer conclude that skill of math student’s concept understanding by using active learning Strategy Everyone Is Teacher Here (ETH) is better than conventional concept understanding.Keywords: Everyone Is A Teacher Here, Concept Understanding
PENERAPAN STRATEGI PEMBELAJARAN INTERAKTIF DENGAN TEKNIK PEMBELAJARAN KOLABORATIF SEND-A-PROBLEM TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA KELAS IX SMP
Authors: Junedi Beni , Juliana Juliana
Published: October 2019

Abstract. Mathematical problem solving is a process that includes understanding problems, planning problem solving, solving problems and checking again. Writing this article aims to determine the mathematical problem solving abilities of students by applying interactive learning strategies with collaborative learning techniques a-problem and conventional learning. This study was a quasi-experimental study with a randomized subject design posttest only control group design. Data collection techniques in the form of essay tests by testing hypotheses using the t-test. The results of the hypothesis test concluded that mathematical problem solving ability with the application of interactive learning strategies with collaborative learning technique is a problem better than conventional learning.Keywords: Interactive Learning, Collaborative Techniques Send-a-Problem, Mathematical Problem Solving Ability
UPAYA PENINGKATAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA MELALUI PENERAPAN MODEL PEMBELAJARAN KEPALA BERNOMOR STRUKTUR
Authors: Mustika Helma , Riska Devi Mei
Published: October 2019

Abstract. This study aims to improve students' mathematical problem-solving abilities by applying the learning model with head numbered structure. This type of research is the Class Action Research (CAR). Data collection techniques used were tests and observations. The instruments used were the problem-solving ability test, observation sheet and data analysis techniques using the problem-solving indicator values. Based on the results of the problem-solving ability test that on indicator 1 that fulfills the completeness of learning in the first cycle 63%, and the second cycle 78%. Indicator 2 in cycle I 59%, and cycle 2 70%. Indicator 3 in cycle I as 52% and cycle II is 67%. Indicator 4 in cycle I 48%, and cycle II 63%. So it can be concluded that the students' mathematical problem-solving abilities increase through the application of the learning model with head numbered structure. Key words: Head Number Structure, Problem Solving