Berdasarkan hasil wawancara di sekolah, larutan penyangga merupakan salah satu materi kimia yang dianggap sulit oleh peserta didik. Dalam proses pembelajaran, guru di SMAN 1 Tualang sudah pernah menggunakan modul dalam bentuk PDF sebagai bahan ajar, sedangkan guru di SMAN 2 Tualang hanya menggunakan buku paket pinjaman dari perpustakaan sebagai bahan ajar. Bahan ajar yang digunakan masih belum …
ABSTRACT Domestic demand for calcium chloride continues to increase every year. Calcium chloride is a chemical substances needed by industries such as the pulp, cement and food preservative industries. Calcium carbonate can be processed into calcium chloride through the acidification process. The main raw materials used in the manufacture of calcium chloride by acidification process are calciu…
ABSTRACT Cadmium (Cd) is a heavy metal that is commonly found in aquatic environments and has a high level of toxicity. Adsorption is the adsorption process of a substance on the surface of another substance due to the molecular attraction that occurs between the adsorbate and the adsorbent. One of the adsorbents that can be used to remove Cd metal is POFA-based zeolite. This study aims to ana…
ABSTRACT In this Era, the waste food give harmful impacts to the environment. This one of the problems of the world community. In fact, many people produce a lot of waste from their leftover food. The cause of this case is the people’s habits in throwing away leftover food. In contrast, there are still many people who are unable to sufficient their food needs. This problem is the background …
Indonesia is a potential market for skin solution products, especially cosmetics which are shown on television screens every day, or printed in various mass media and with a population of more than 270 million people, making Indonesia a promising market for cosmetic companies. One of the cosmetic products is the Maybelline brand. Maybeline products are starting to enter the Indonesian mark…
ABSTRACT Bagasse and sago bark are biomass waste that can be used as an alternative energy source in the form of charcoal briquettes. The purpose of this study was to obtain the best ratio bagasse and sago bark to produce quality charcoal briquettes made from bagasse and sago bark based on SNI No. 01-6235-2000. The study was conducted experimentally using a Completely Randomized Design (CRD) c…
This research is motivated by a phenomenon that arises based on observations made at the Smart State Senior High School in Riau Province that there are 50% of Smart State Senior High School students in Riau Province who are not yet independent. This can be seen from the students in carrying out their duties and obligations in the dormitory must be ordered by the hostel supervisor first, the…
Abstract This study aims to determine the effect and optimal doses of thyroxine on the growth and survival of nilem. The test fish used came from Payakumbuh City, West Sumatra. The research was carried out at the Aquaculture Technology Laboratory, Faculty of Fisheries and Marine Affairs, Riau University, Pekanbaru, from April–May 2022. The method used in this study was a completely randomize…
ABSTRACT This study aims to determine how the influence of Gross Regional Domestic Product (GDRP) and Direct Expenditure on Effect Of Revenue (PAD) in the city of Dumai in 2011-2020. Analysis of the data in this study using multiple linear regression method. Hypothesis test using partial test (t test) and simultaneously (F test). The data used in this study is the data of GDRP and Direct E…
ABSTRACT The availability of adequate of halal products is a major problem to meet consumer needs, especially the State of Indonesia which has a composition of society that is dominated by the Muslim population, Pekanbaru City, currently has 84.54% Muslim population. The purpose of this study was to determine whether public perception, public interest, and community income simultaneously and pa…
ABSTRACT This study aims to examine and analyze Clarity of Budget Goals, Budget Evaluation, Organizational Commitment, Decentralization, and Leadership Style on the performance of the local government OPD Kampar Regency. The population in this study were local government officials at the Kampar Regency OPD with a total sample of 72 people taken by purposive sampling method. The data analysis t…
ABSTRACT This study was conducted on April-May 2022 at Fish Hatchery and Breeding Laboratory, Faculty of Fisheries and Marine, University of Riau, Pekanbaru. The purpose of this study was determine the effect of immersion eggs with different doses of Ananas comosus Linn on hatchability, growth, and survival of Asian Redtail Catfish larvae. This study used a Completely Randomized Design (CRD) w…
Often students when studying history feel bored and monotonous because it is not uncommon for history teachers to still use the lecture learning method. The lecture method can be interpreted as a way of presenting lessons through oral narratives or direct explanations to a group of students. But along with the development of increasingly advanced technology as well as education which must a…
This research is motivated by the lack of utilization of available learning resources and students do not have involvement in finding and formulating their own information as teaching material, thus making students less active and tend to be passive. The purpose of this study was to determine student learning outcomes before being given treatment and after being given treatment and to find …
The study aims to find out the misconceptions of students on thermochemical material from the results of a limited trial using four diagnostic test in class XI MIPA SMA Negeri 1 Gunung Toar which was carried out in the odd semester of the 2022/2023 academic year and data collection was carried out from July to by August 2022 at SMA Negeri 1 Gunung Toar. The population in this study were all stu…
ABSTRACT Okra is africa origin tropical plant and widely cultivated in various tropic and subtropic countries. Purpose of this study to determine effect of potassium on okra growth and productivity at several shading levels, and obtain the best level of pottasium in okra culvatio on Riau Province. The study was conducted in the Horticulture UPT Agriculture Faculty, Univesity of Riau, on March-…
This study aims to find out and analyze the influence of Organizational Culture and Commitment on Performance through Job Satisfaction of Civil Servants at Educational Office, Dumai. The method used in this study is quantitative. The types and sources of data are primary data obtained from the results of empirical research through the distribution of questionnaires to employees who were th…
The Question Student Have method is a learning strategy used to get student participation through writing in the form of a question. The problem in this research is is there any influence from the use of the Question Student Have method on student learning outcomes in the history subject of class X IPS 1 SMAN 1 Lubuk Alung? The purpose of this study was to determine the effect of using the …
ABSTRACT Introduction: The help seeking behavior can be caused by academic stress felt by final-year students. Academic stress has a negative impact and can cause anxiety, hopelessness, loss of self-confidence, and even mental disorders. Final-year students have the possibility and opportunity to engage in help-seeking behavior for resolve their academic stress. This study aim to know the rela…
ABSTRACT IMPLEMENTATION OF DEVELOPMENT IN BANJAR NAN TIGO VILLAGE INUMAN DISTRICT KUANTAN SINGINGI REGENCY 2019-2020 Oleh : Sutrianika Email : [email protected] Dosen Pembimbing : Dr. Auradian Marta, S.IP., MA. Jurusan Ilmu Pemerintahan Fakultas Ilmu Sosial Dan Ilmu Politik Universitas Riau Kampus Bina Widya KM. 12,5, Simpang Baru, Kec. Tampan, Kota Pekanbaru, Riau 28293 Telp/Fax…