Natural community of butterflies is influenced by conditions of the habitat. Butterflies are member of insect that are active during the day and have bright colored pattern of wings. The study aimed to determine the butterfly community (Rhopalocera) in the Sultan Syarif Hasyim Forest Park Minas District, Siak Regency, Riau Province. This experiment used combination of two methods, namely direct…
Kampar River and Tapung River are the flood plain river ecosystem located in Riau Province. This research is a morphometric study (Belodontichtys dinema) which aims to know the difference of morphometric character of male and female in Mentulik and Bencah Kelubi. The method used in this research is survey method. The sample used amounted to 120 fishes consisting of 60 fishes, 30 males dan 30 fe…
Soursop plant (Annona muricata L.) is one of the plants in Indonesia that has many benefits. One of them as a medicinal plant. This ability is related to certain genes that encode certain proteins. Initial studies were conducted to isolate the housekeeping gene, glyceraldehyde-3-phosphate dehydrogenase (GAPDH), which can act as an internal control. The research procedure begins with the provisi…
This study was aimed at investigating the use of instructional media by pre-service English teachers during teaching practicum. This study was descriptive quantitative research. This research was conducted by spreading questionnaire to all students who take teaching practicum in 2018. There are 85 students that is given the questionnaire to be filled trough their email and sent it back to the r…
This study aims to identify the students’ acceptance level of the use of Google Classroom as a platform in Blended-learning and to compare the results between three departments of Language and Arts department in FKIP of Universitas Riau. Data of this survey research were collected through an online survey and analysed descriptively. The questionnaire in the survey used Technology Acceptance M…
This research aimed to determine the correlation between the motivation and speaking ability of the second year students of SMK Muhammadiyah 2 Pekanbaru. The sample of this research was all class of the second year students consisted of 37 students. The sample was chosen by using Proportional Sampling Techniques. The questionnaire and speaking test used to collect the data in this research. The…
this descriptive research was conducted in order to find out the taboo words in the hitman’s bodyguard movie. The data were collected using the sociolinguistic approach. The data were in the form of utterances, while the contexts of the data were the dialogues uttered by the characters in the movie. The sources of the data were the video of Hitman’s Bodyguard movie and its transcript. The d…
This research is aimed to find out the correlation between vocabulary knowledge and writing ability of the third year students of English Study Program FKIP Universitas Riau. The sample of this research was class 6B, consisting of 35 students. The data were collected using two kinds of test; namely, a vocabulary test and writing test. The result of this research showed the third year students o…
Apium graveolens L. is a plant belongs to Apiaceae family and has various benefits. Celery seeds have a low germination rate. Coconut water contains natural hormones that are used to increase plant germination. This study aims to determine the concentration and duration of soaking of celery seeds with coconut water in increasing the germination of celery seeds. The study used a factorial comple…
This research is aimed at exploring the correlation between interest in reading English texts and reading comprehension of the eleventh grade students of SMAN Binaan Khusus Kota Dumai. A correlational research design was used in this research. Two classes cosisting of 60 students were chosen by using cluster random sampling. There were two data obtained in this research: the percentage of stude…
The objective of this research is to find out the types of grammatical errors made by the tenth grade students of SMAN 12 Pekanbaru in the academic year 2018/2019 in writing recount texts. This research used a descriptive method. The participants of this research were 65 students of class X MIPA 3 and class X IPS 6 of SMAN 12 Pekanbaru. The students were selected to be the sample using cluster …
The research was aimed to investigate whether problem-based learning (PBL) method can affect students’ speaking ability. The research was conducted at the first year exact science students of SMA Negeri 8 Pekanbaru. The number of the students was 324 in 9 classes. Due to the large population, the cluster random sampling was used to determine the sample, then lottery taking is applied with the…
Titanium dioxide (TiO2) is a good photocatalyst and canapplied for the degradation of organic compounds. In order to increase the performance of TiO2, modification needswith other compounds, for example composite TiO2-SiO2. The purpose of this study is determine the functional groups that characterize by Fourier Transform Infrared (FTIR) and determinephase and crystalline size as well as that…
Biodegradable plastic is an environmental friendly plastic made from starch and cellulose. Starch and cellulose are extracted from cassava peel and peanut shell. The purpose of this research was to get the best formulation of cassava peel starch and peanut shell as cellulose on physical and mechanical properties of biodegradable plastics. This research was conducted experimentaly by using compl…
Composite TiO2-SiO2 is one of the widest used as photocatalysts, especially in the treatment of pollutants and wastes. The aim of this research is to synthesized composite TiO2-SiO2 by sol-gel method using the bagasse ash which has a high of SiO2 content, which is between 46-81%. Synthesis the composite was carried out by following the research methods of Yusefah and Amaria in 2014 using calcin…
The main objective of study was to examine the correlation between reading speed and reading comprehension in narrative texts of the second year students of SMA N 1 Mandah. To collect the data a reading speed test and a reading comprehension test were administered. The reading speed test was in a spoken form and the reading comprehension test was in the form of multiple choice questions. A clus…
The purpose of this study was to obtain the best ratio on quality and sensory nugget made from catfish and young jackfruit. The research method used a completely randomized design with four treatments and four replications. The treatments consisted of PN1 (70 meat of catfish: 30 young jackfruit), PN2 (60 meat of catfish: 40 young jackfruit), PN3 (50 meat of catfish: 50 young jackfruit), PN4 (40…
This research is aimed at developing English instructional tools (lesson plan and students’ worksheet) by applying inquiry-based learning as one of the learning model suggested in the 2013 curriculum and to find out the validity level of developing English lesson plan and students’ worksheet by applying inquiry-based learning in teaching recount texts for the first year students of SMA. Thi…
Composites are compiled at least by two different materials, each acting as a matrix and reinsforce (amplifier). In this research hydroxyapatite plays as a matrix whereas chitosan as reinforce. In this study, the composite HAp-chitosan is synthesized using Geloina coanxans as a source of kalisium using two types of solvent water and HNO3, (NH4)2HPO4 as a source of Fospat and is composited with …
Jackfruit seeds and durian seeds are agricultural waste containing high starch, which can be used as raw material for biodegradable plastic. The purpose of this research was to get the best formulation on the making of biodegradable plastic based on starch of jackfruit seed and starch of durian seed. This research was conducted experimentaly by using complete randomized design (CRD) which consi…