Hydroxyapatite is a bioceramic acid which is widely used as a bone and tooth graft, catalyst and adsorbent. Hydroxyapatite is a calcium phosphate compound that can be synthesized from natural ingredients with calcium content such as coral reefs. Coral reefs are marine biota with a CaCO3 content of 98.8%. This study aims to synthesize hydroxyapatite through the formation of Precipitated Calcium …
Alstonia scholaris contains flavonoids, tannins, triterpenoids, resins and alkaloids. Alkaloid compounds, tannins and flavonoids of plant origin can inhibit weed growth. Alkaloid compounds, tannins and flavonoids work by suppressing the hormone auxin and the hormone gibberelin so that weed growth is inhibited. This study aims to determine the potential of Alstonia scholaris leaves in inhibiting…
This study aims to examine the effect of profitability, leverage, board size, and public ownership on the disclosure of Corporate Social Responsibility (CSR) in Mining Companies Listed on the Indonesia Stock Exchange in 2012-2016. The population used in this study is all listed companies or mining companies listed on the Stock Exchange in 2012-2016 totaling 37 companies. Based on the purposive …
Penicillium sp. LBKURCC34 is a fungus isolated from peat soil in primary forest, Giam Siak Kecil Bukit Batu Biosphere Reserve (GSKBB), Riau Province. This fungus has the potential to produce secondary metabolites that have antimicrobial activities. This study aims to compare the production of secondary metabolites from the growth media of Penicillium sp. LBKURCC34 with elisitor media (A inoculu…
This research was conducted on March-April 2018 in Teluk Pambang village of Bantan Subdistrict of Bengkalis District of Riau Province. The purpose of this study was to determined differences drift gillnet catches according of day to the operational. This resech used a survey method. The night catches bigger then day light catches in respectively total catches is 366 kg (77 fish) and 230,9 kg (5…
Budget Plan (RAB) is a planning of a building to be done or made to determine the amount of cubication or volume of the building and the amount of cost to be spent for the building. RAB can also to measure or know the ability of one's budget before building the building. In this RAB also has several parts, among others: Image Bastek, Unit Work. In this final report, the authors designed a house…
ABSTRACT This research was conducted at Kenegerian Teluk Beringin,, Gunung Toar Subdistrict Kuantan Singingi Regency. The purpose of this research is to find out how the profile of the Pangean Pencak Silat, as well as find out what efforts are being made to keep the Pencak Silat Pangean. Determination of the sample are purposive sampling because the author has set some criteria that will be …
The problem raised in this research is "Muscle Power of the PKDP Club Volleyball Player in Pekanbaru City?" offset the opponent's game and achieve maximum achievement going forward. The form of this study is (Experiment), with a population of club volleyball players at the town of Pekanbaru. The data in this study are all populations of 8 people. The instrument carried out in this study is Vert…
Domestic demand for petroleum is increasing while Indonesia's oil reserves are running low leading to high world oil prices. To overcome this it is necessary to develop alternative renewable energy derived from vegetable oil, one of which is biodiesel. Purposes of this research were to produce biodiesel from CPO with transesterification’s methode, having study the effect of different weight o…
Abstract: The problem in this research is the low of student’s ability to reach their target which is a leap of 4.30 meters. The purpose of the research is to determine whether there is a relationship of the speed 40 meters run and the explosive of power leg muscles to squat-style long jump results in male student of XI Social1 MAN 1 Muara Fajar Pekanbaru. The sampling is the overall populati…
This study focused on the efforts to uncover and analyze the influence of leadership on employee performance, work motivation on employee performance, and the leadership to work motivation directly through moderating variable; that was work motivation which can strengthen or weaken employee performance. The primary data was collected by using questionaires as a tool to prove the results. T…
Traffic problems that often happens in Pekanbaru is congestion, which are population growth and vihicles are not supported with traffic and infrastructure developments. Factor that cause this congestions is effect of side barriers that can reduce capacity of the roads Side obstacle factors are: pedestrians, vehicle stop / parking on the road, vehicle exit / entry road and slow vehicle. The stud…
The issues raised in this research is that the ability of the service under the womwn’s volleyball team MAN 1 Pekanbaru is still not good,this can be seen when the women’s team to service under a lot of balls that are still not over the net,and also the direction the ball is not maximized.this is caused by a lack of technical training services under the women’s volleyball team MAN 1 Pekan…
Background problem in this research is the low student learning outcomes IPA, with an average grade 62.50. Among students of 20 people only 9 students who completed reached KKM with classical completeness 45%. Given the importance of learning science, then one way to improve student achievement in elementary school is to select methods appropriate learning. One appropriate method is used is a m…
Rhizophora apiculata is the dominant mangrove species found in Pulau Cawan Regency Indragiri Hilir, Riau. The mangrove species has a significant role in carbon sequestration. This aim of this research was to determine of biomass, carbon stock and sequestration of CO2 in R. apiculata, as well as the analysis of soil organic carbon in each layer depth. This research was conducted in September-Nov…
This research was conducted in May 11th to June 24th 2017 in the Technical Implementation Unit (TIU) of Breeding Marine and Fisheries Faculty, University of Riau. The aim of this research was to investigate the effect of different density of (Ipomoea reptana) toward the growth performance and survival rate of (Pangasius hypopthalamus) using aquaponic system. This research was using 5 -7 cm of (…
In an effort to strengthen food security in Indonesia, the government set up a separate body to deal with the problem of food that Bulog. Bulog rice procurement allocation include Beras Miskin (Raskin), Cadangan Beras Pemerintah (CBP) and Operasi Pasar Murni (OPM). To meet the needs in the province of Riau and Riau Islands province, Bulog Regional Division Riau and Riau Islands should make the …
The involvement of children in crime who are in public life is awkward in society. There are many factors that could be behind someone committed a crime, such as: opposition and competition culture, differences in political ideology, density and composition of the population, differences in the distribution of cultural differences in wealth and income, the mentality unstable, as well as factors…
The problem of this research is base on observation which was found by the researcher while do test of long jump male students in SMK Farmasi Ikasari Pekanbaru. Students did not anexpected result (3.60m). This is because explosive power of leg muscle students grade X of SMK Farmasi Iksari Pekanbaru not good enough. Sampling used in this research is total sampling. Sample of this research is in…
Peoples Movement Maghrib Qur’an in Kampar regency in the last 3 years has been running. The availability of teaching staff and public participation in the Community Movement Maghrib assesses the factors of the evaluation of the Regional Regulation No. 2 of 2013 on the Community Movement Maghrib Qur’an. Interest Regional Regulation No. 2 of 2013 on the Community Movement Maghrib enable Musli…