Corrosion is the deterioration of metal by chemical attack or reaction with its environment. It is a constant and continuous problem, often difficult to eliminate completely. One of the method of inhibiting corrosion process is use corrosion inhibitors. Guava leaf extract contains tannins which can be used as inhibitor. AISI 4140 steel is an alloy of nickel and chromium steel. The purpose of th…
This nal project discusses an application of the homotopy analysis method to solve a nonlinear Fredholm integral equation of a second kind in the form Urysohn. Then the method is applied to three examples. The results show that the convergence of the homotopy analysis method to the exact solutions is very fast. Keywords: Homotopy analysis method, nonlinear Fredholm integral equation, Ury…
This research intent to increase IPA studying result student by applying kooperatif learning model type Jigsaw on student class IV SDN 007 Pedamaran. This research up on its low usufructs student studying class IV SDN 007 Pedamaran. Initially just 11 student that reaches KKM of 25 students. One of its low cause usufructs this IPA studying at because karean in processes more teacher learning a …
This thesis is submitted in order to qualify holds a Bachelor of Sociology. With the title"Social Capital Traders Vegetables In The Market Dewi Sartika Duri". Issues discussed in this thesis is How the social capital Merchants Vegetables and how the mutual relationship with the merchant traders, merchants with farmers and traders with the agent in the Market Dewi Sartika Duri. Subjects in this …
This research aims to determine how high the increased gross motor skill of ability children aged 5-6 years in kindergarten PERMATA BUNDA Kotogasib city Siak regency using Performance Throw and Catch of Ballmethod. This research is a classroom action research conducted in 2 cycles. Data collection tool using in this study is in the form of sheets and documentation for writen about the activity …
The minimal existing of residences in the city of Pekanbaru is causing the rental price or the selling price of a residential area continues to rise. With the difference of economic ability in each individual, not all the people who are migrants in Pekanbaru city get a place to live. Dense economic growth in downtown Pekanbaru, causing the amount of empty land becomes reduced. Pekanbaru need an…
This Research is a contemporer study which analyzes about the efforts of NGO network International POPs Elimination Network (IPEN) in action to resolve the complexity of exposure to mercury in artisanal small-scale gold mining (ASGM) and health sector in Indonesia. Mercury is a well-known toxic that is damage for environment and acute health-effects. Mercury widely used and extent in artisanal …
Based on observations by the author at the time of fifth grade students of SDN 020 Padang Mutung Kampar District Kampar Regency doing the long jump some students jump results do not reach the target set (3.5 m), this problem arises presumably because the student's ability to run also not the maximum so as to help boost the long jump did not exist resulting in long jump results students are not …
Study was conducted in February 2016 at Terapung Market Tembilahan District Indragiri Hilir Province Riau. This study was aimed to analyzed levels of income of traders retailers and influence capital, the quantity of fish sold and experience on the income of traders retailer fresh sea fish in Terapung Market Tembilahan. Methods used in research was survey by the number of respondents about 13 p…
The purpose of this action research is to determine how the application of Cooperative Learning Model TPS (think pair share) can Improve Student Motivation Economy Class XI IPS SMA Negeri 1 Rantau Kopar I Rokan Hilir. This research is a class act consisting of two cycles, with four sessions each cycle includes planning, implementation, observation and reflection. The results of the study in the…
This study aims at drafting material about resilience needed for high school students in terms of the clarity of the material , the material systematics , image support , renewal of the material , and completeness of the materials and support vidio / game . Before the researchers gave the material to the students , the researchers first demonstrated the results of his material to the supervisor…
The hybrid air conditioning systems can improve the energy efficiency by recovering waste heat of condenser that can be useful for various purposes.There are many experimental studies about this system which aimed to investigate and improve the performance. This experimental study aims to invesigate the performance of hybrid air conditioning machine using different diameters which are 1/4″ an…
This research to determine to learn the function of lactat acid bacteria (LAB) in food. This research did among march until may 2016. Result from this research to make desaign course such as student worksheet (LKS) in biology SMA. This research did by 2 phases, field research and desaign course learning. Experiment mode used in this research. Making yoghurt mango started by pasteuritation procc…
Forest as a profit of international development have a real benefit for the life of Indonesia, as benefit ecology, cultural social as well as economy, in equal and dynamic. That is why forest must be administered, managed, protected and used sustainable for prosperity of human being. Forest destruction as referred to constitution involved illegal logging and/or forest use unauthorized which is …
This research intend to verifying Brexit announcement effects to the abnormal return dan trading volume activity. Beside it, this research also intend to find the significant difference between before and after the event. Variables used in this research is the abnormal return and trading volume activity. This sample is determined by using census method. In this research, there are 41 samples li…
This research is aim at observing the influence of workload, supervising and Transformational leadership on the employees purpose of this study looked at the effects of Workload Monitoring and transformational leadership on employee performance at PT. Alpha Scorpii in Pekanbaru. There are three variables that influenced the employees performance (Y); workload (X1), supervising (X2), transformat…
This research aims to determine the differences in mathematics learning outcomes of students who were taught using Cooperative Learning Approach Structural models Numbered Heads Together (NHT) with mathematics learning outcomes of students who were taught using conventional learning models. Forms of research is the study Quasi-Experimental Design with design Posttest-Only Design With Nonequival…
The problems that occurred in the fifth grade students of SD Negeri 05 Piece Small Siak District of Bengkalis is low learning achievement of students in math in the first half. Some of the factors that lead students to master difficult subjects Changing common fraction into a decimal, among others, came and teachers less than the maximum in the use of instructional media other causes originate …
HEMOGLOBIN CRYSTALS IN BLOODSTAINS EXPOSED SOLID ANTISEPTIC BATH SOAP USING TEICHMANN TEST AND TAKAYAMA By MUTIA UMARA In the criminals like murder, torture, and rape usually found bloodstains, blood, sperm, saliva, and hair at the criminals scene. In the some forensic examination of blood are confirmatory test (Teichmann test and Takayama test) that can confirm if suspected object were bloo…