Browsing by Author "Sari, Maya"

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    OPTIMASI KONDISI PROSES (KECEPATAN PENGADUKAN DAN TEMPERATUR) ADSORPSI LOGAM Fe DENGAN ZEOLIT 4A
    (2012-10-24) Sari, Maya; Zahrina Ida; Zultiniar
    Iron is one of the heavy metals that are harmful if the measure exceeds the threshold. Degradation of water quality caused by the existence of which the iron content that already exists on the ground because of the layers of soil through which the water contains certain chemical elements, one of them is iron. The methods to reduce the concentration of dissolved metals, particularly heavy metals are growing rapidly at the moment is adsorption, because not only easy to do but also quite high effectiveness and cost required is quite low. The adsorbent used is zeolite 4A synthesized from a mixture of silica and alumina with a volume ratio of 60/40, stirring the reactants need 3 hours and heating the gel need 8 hours. This research aims to study the effect of stirring speed and temperature the adsorption of metal Fe with zeolite 4A using Response Surface Method approach-Central Composite Design and obtain optimum conditions for the absorption of Fe metal with zeolite 4A. stirring Rapid is done by variation of 300 to 600 rpm and the temperature variation of 30 to 60 c. Ion concentration of Fe (II) sulfate was analyzed using AAS. The results obtained showed that zeolite 4A able to adsorb up to 97.439% Fe and obtained optimum conditions for stirring Rapid 1230 rpm and a temperature of 87 c.
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    Penerapan Metode Demonstrasi Untuk Meningkatkan Kemampuan Gerak Dasar Tari Kipas Siswa Kelas IV SDN 26 Pekanbaru
    (2013-06-25) Sari, Maya
    Based on the results of interviews with researchers doing art teacher in the fourth grade at Public Elementary School 26 Pekanbaru, known to dance the basic motor skills of students is still low. The low ability of basic dance movements Elementary School fourth grade students Negeri 26 Pekanbaru is due to teachers' teaching methods are still conventional, so that students are less keen to follow suit. This study aims to improve the basic motion dance fan Class IV students of SDN 26 Pekanbaru. This study was conducted in November-December 2012 with a number of 32 students. 15 male students and 17 female students. Based on the results of the research data showed teachers' increased activity of the average first cycle was 72.5% (excellent) and the average cycle II was 95.0% (excellent) increased by 22.5%. Student activity increased on average in the first cycle was 78.3 (excellent) and the average of the second cycle was 90.2 (excellent) increased by 11.9. Ability students obtained through tests the ability of students has increased which can be seen from the class average on the basis of the average score of the students in the first cycle increased 58.85 to 65.93. Increase in the average value of the base score to the first cycle is equal to 7.1. The average cycle I increased 65.93 to 80.62 in the second cycle. Increase in the average value of the first cycle to the second cycle at 15 Thus through demonstration method can improve the ability of the basic motion dance fan fourth grade students at SDN 26 Pekanbaru.
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    Pengaruh Penerapan Metode Discovery Terhadap Keterampilan Proses Sains Pada Anak Usia 5-6 Tahun Di TK Al-Latif Desa Tarai Bangun Kecamatan Tambang Kabupaten Kampar Pekanbaru
    (2013-06-26) Sari, Maya
    The science process skill is a necessity skill development to childhood the purposes in order that they have skill to solve the problems are faced by them, so the children can solve it and have skill in solving the problems. The survey has been done to 14 children in 5 – 6 years old in the Kindergarten Al – Latif. The purpose of this research is to know the influencing of discovery method to science process skill in child at 5 – 6 years old in the kindergarten Al – Latif Tarai Bangun village Tambang Regency of Kampar. This research is quantitative research by using experiment approach. The collecting data instrument of this research is observation sheet. Data analyze by using experiment technique and significant test (t test) the result of this research show that there is influence of discovery method to the child’s science process skill getting increase that before the child use the discovery method their science process skill in low or 100 % then significant increasing by using discovery method in high category become 64%. The research result significance t test get the score t table in believe level 5 % (dk=n-2=14-2=12) so t table = 2.179 so t count > t table so Ho = is refused by Hα is acceptable. It means in this research there is significant influencing between the child’s science process skill before and after using discovery method in the class B kindergarten Al – Latif Tarai Bangun village Tambang Regency of Kampar.
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    PERBANDINGAN MORFOLOGI JENIS PAKU DARI FAMILI ASPLENIACEAE DI KECAMATAN HULU KUANTAN, KABUPATEN KUANTAN SINGINGI, PROVINSI RIAU
    (wahyu sari yeni, 2019-08-15) Sari, Maya; Sofiyanti, Nery
    Hulu Kuantan Subdistrict, Kuantan Singingi Regency, is one of the distribution area of ferns in Riau Province. The purpose of this study was to compare morphological characters of Aspleniaceae species from Hulu Kuantan Subdistrict, Kuantan Singingi Regency, Riau Province. The research was conducted from September to December 2018. Samples were collected using exploration method, and prepared for herbarium specimens in Botanical Laboratory, Biology Department, Faculty of Mathematics and Natural Sciences, Universitas Riau. The morphological characters of species were documented, characterized, and descriptively analized. Two species from Aspleniaceae identified from the study sites were Asplenium nidus and Asplenium longissimum. The main morphological characters that differed these two species were habitat, leaf size and structure, and sorus position.