3D bone replica based on porous Hydroxyapatite (HA) is a candidate bone implant material that has similarities to the original bone. One technique for fabricated porous HA is the starch consolidation method. The objective of this study was to determine the effect of starch addition and starch types on porous HA. The study was conducted by mixed HA as much as 20 grams with the amount of starch 8…
This study aims to determite the effctivennes The Application Of The Problem Based Learning Model Combined With Numbered Head Together (Nht) Towards Student Learning Outcomes On The Subject Of Class Hydrocarbons XI MIA MAN 2 Pekanbaru . This type of research is an experimental study using design cluster randoming sampling by using research design randomized control group Pretest-posttest. The…
This research is supposed to produce valid and practice Student Activities Sheet with magazine view based on critical thinking on the subject of hydrocarbon. This type of research was development research used 3 steps of 4D model by Thiagarajaan those are defined, design, and development. Student Activities Sheet is validated by 3 lecturer from Chemistry Education of Riau University. Practicali…
Microalgae cultivation is influenced by several factors, including nutrition on the media, light, and CO2. In this research, peat water is used as a cultivation medium, the presence of nutrients contained in peat water has the potential to be used as a microalgae cultivation medium. Therefore, this research has the aim of determining the effect of photoperiods and adding different amounts of KN…
This research explains the cause of U.S. foreign policy changes to Cuba during the reign of Donald Trump in 2017-2019. U.S. foreign policy against Cuba during the reign of Donald Trump is deemed to have made the U.S.-Cuba relationship worse. This is because U.S. foreign policy against Cuba during the Obama administration will be revamped by Donald Trump. This research used Behavioralis persp…
The research about Attention, Relevance, Confidence, Satisfaction (ARCS) learning model has been done in SMAN 7 Pekanbaru. The purpose of study is to improve learning motivation of learners on the subject of rate of reaction in class XI science 1 SMAN 7 Pekanbaru. The type of research is classroom action research which is done collaboratively where the researcher and the chemistry teacher work …
Greases are used between rubbing metal surfaces to reduce friction. The utilized base oil could be vegetable oir or mineral oil. The objective of this research are to produce grease from waste cooking oil and to study the LiOH-NaOH ratio and base oil effect to grease characteristics. Grease-making methods comprised base oil (waste cooking oil) preparation, saponification to made thickening agen…
The research about the Argument Driven Inquiry (ADI), model has been conducted in MAN 3 Pekanbaru. The purpose of this research is to determine wheterthe application of ADI learning can improve achievement and the influence of application of ADI learning model in class XI MIA MAN 3 Pekanbaru on the subject improve category N-Gain, Research on the application of learning model ADI has been done …
The research about Attention, Relevance, Confidence, Satisfaction (ARCS) learning model has been done in SMAN 7 Pekanbaru. The purpose of study is to improve learning motivation of learners on the subject of rate of reaction in class XI science 1 SMAN 7 Pekanbaru. The type of research is classroom action research which is done collaboratively where the researcher and the chemistry teacher work …
Research purposes: 1) Develop an interactive e-module based on 3D Pageflip Professional on chemical equilibrium material for class XI for high school / MA level which is valid according to aspects of validation; 2) Knowing the user's response to e-modules that are made. The background of the study is due to the lack of students' interest in reading, so we need a teaching material in the form of…
The purpose of this research is to: 1) develop Student Activities Worksheet in the form of magazine based on critical thinking on reaction rate material that is feasibility of content, critical thinking, language, presentment and graphics; 2) know users response of LKPD. The procedure development research using 4-D development model (Define, Design, Develop, Disseminate), But this stage is only…
This study aims to determine the cost of production facilities, labor wages, and other expenses in one year to obtain the feasibility rate of rice farming in the Bunga Raya District. This research was conducted in 5 villages in Bunga Raya sub-district which have a fairly advanced farmer group. Sampling used random sampling concept. The data collected in this study are primary and secondary …
This study aims to produce an essay test instrument for critical thinking skills on chemical bonding material and to know the validity, reliability, distinguishing features, and the difficulty level of the test instrument. The research method uses the ADDIE model with five stages namely analyze, design, develop, implementation, & evaluation. In this research formative evaluation is done, meanin…
In 2017 the City of Youth and Sports Agency in Pekanbaru organized entrepreneurship training activities for young people, which was attended by 25 young people. The reason for the low number of participants is the lack of socialization from the organizers of activities and the lack of funds allocated for activities. As a series, it does not stop with training activities and apprenticeship activ…
Magnetic stirrer tool is one of the supporting laboratory instruments used to stir a sample so that the sample can be mixed into homogeneous. The Stirring System uses a magnetic field rotation mounted on a DC motor to rotate the stir bar soaked in a solution so that the material does not stick to the pedestal between the drive shaft. The purpose of this study is to be able to design a magnetic …
The authority of the Pekanbaru city government in handling social problems is in the form of handling homeless people and beggars as stated in Pekanbaru City Regulation Number 12 of 2008 concerning Social Order. Pekanbaru City Government through the regional government organizations related to the Pekanbaru City Social Service and coordinating with the Civil Service Police Unit has a role in ha…
Corporate Social Responsibility (CSR) is a concept or action taken by the company as a sense of corporate responsibility towards the social and the environment around the company is located. The company that is the object of the author's research is PT. Development of Investment Responsibility (PIR) of Indragiri Hulu District, Peranap District. Which local communities have not felt the benefits…
Coaching is an effort, action and activity carried out in an efficient manner to obtain better result, While the (UPPKS) program is a program formed by the government aimed at women who participate in family planning with various stages of a prosperious family that is prioritized to those who are less able to meet the needs in their families.so that they are given coaching to carry out business…
Roller Grinding at Atox Coal Mill is equipment used to refine coal (raw coal). Atox mill there are three roller grinding. The movement of the grinding roller comes from the movement of the table below it. The lubrication system on the roller grinding is classified as an external lubrication system. Roller grinding in the atox vertical mill is equipment that uses large heavy duty type bearings. …
Hoisting system on overhead traveling crane capacity of 55 tons in the crusher area of PT. Cement Baturaja is designed for material handling processes, especially if it is needed in the event of equipment disruption or trouble in the area and also during factory shutdown. The main components of the hoisting mechanism consist of wire rope, pulley, drum, hook, lifting motor and mechanical brake. …