Sintesis Dan Uji Antibakteri Senyawa (E)-1-(2-klorofenil)-3-ptolilprop- 2-en-1-on

Halogen substituted analogoues compounds chalcone, (E)-1-(2-chlorophenyl)-3-p-tolylprop-2-en-1-on, were synthesized from 4-isopropyl benzaldehyde as aldehydes with 2-chloroacetophenone as ketones by using aldol condensation reaction. The compound resulted rendement with value of 60,08% and characterized by using UV, IR, MS, and 1HNMR. Test of antibacterial activity using agar diffusion method showed that the compound (E)-1-(2-chlorophenyl)-3-p-tolylprop-2-en-1-on potentialas an antibacteria

Developing Biochemical Teaching Material Based on Research Results of Amino Acid Compound Identification of Seaweed (Dictyota Patens) in the Segara Beach Sanur

This study aims to identify the content of amino acids in seaweed (Dictyota patens) in Segara Sanur Beach which then developing teaching materials based on the results obtained. The method used to test the amino acids was HPLC, meanwhile the data collection has been done by employing questionnaires. The normality test was measured by using normality test, besides the homogeneity test and Paired Sample Test were also used to analyze the homogeneity and significant difference of the data gained. The development of teaching materials has been conducted through several stages namely: needs analysis, design of teaching materials, development of teaching materials, validation of teaching materials by experts, and experiments of teaching materials. The amino acid contents were done by using HPLC. The amino acids contained (% w/w) in the seaweed are aspartic acid (0.36), glutamate acid (0.57), serine (0.20), histidine (0.06), glycine (0.25), threonine (0.17), arginine (0.59), alanine (0.08), tyrosine (0.02), methionine (0.12), valine (0.22), phenylalanine (0.14), Isoleucine (0.16), leucine (0.33) and lysine (0.93). While in the development of teaching materials there is an increase in student learning outcomes by 0.28 with good criteria and there is a significant difference in students learning outcomes between the experimental class and control. Student response is 82.07% which means very strong toward the use of teaching materials

Analisis Motivasi Belajar Biologi Siswa Kelas VIII Mts Sejahtera Bersama Rambah Samo Tahun Pembelajaran 2014/2015

Study about analysis of student motivation learning on biology class VIII Student of MTs Sejahtera BersamaRambah Samo Prosperity Learning on Year 2014/2015 has been conducted in December 2014 to January 2015with a descriptive qualitative method. Sample was collected by using total sampling technique. Results showedthat the analysis of the eight indicators in this study showed an average percentage of 73% with the high categor

Uji Kandungan Metabolit Sekunder Tumbuhan Obat yang Terdapat di Kecamatan Rambah Samo Kabupaten Rokan Hulu

This research was conducted from October 2016 to January 2017 in the Rambah Samo subdistrict Rokan Hulu district. The purpose of this study was to determine the content of secondary metabolites of medicinal plants found in the Rambah Samo district. This research used experimental method with reference of “Harborne”. The results showed that the leaves of Cassia alata identified contain flavonoids, alkaloids, saponins, tannins and phenolics, while the leaves of Gynura procumbens compound identified containing flavonoids, steroids, saponins, tannins and phenolics, and also leaves of Pluchea indica identified containing flavonoids, steroids, tannins and phenolics

Studi Etnobotani Tumbuhan Obat Di Kecamatan Rambah Samo Kabupaten Rokan Hulu

Purpose of this study as to determine the species of plants used as traditional medicine, parts used and the efficacy of the plants by district community Rambah Samo. This study was conducted from November 2014 until January 2015. This study is qualitative with interview and survey technique. The result found 21 family from 38 species of plants are used as traditional medicine. Parts used in the form of leaves, rhizomes, roots, whole plant, stem, fruit and sap. How to use is by boiling, drops and engulfed. The most commonly treated diseases are blood sugar disease and cough

Analisis Kompetensi Pedagogik Guru Dalam Pembelajaran IPA Terpadu SMP Kelas IX Se Kecamatan Pagaran Tapah Darussalam Kabupaten Rokan Hulu Tahun Pembelajaran 2014/2015

The aims of this study was to know the ability of teachers in the implementation of learning pedagogical Integrated Science is Junior High Class IX se District of Pagaran Tapah Darussalam Rokan Hulu Learning Year 2014/2015. This research is a descriptive study. Samples taken from the entire population of 5 teacher. The sampling technique in this paper is saturated sample is a sampling technique when all the population is used as a sample. Result showed the ability of teacher in junior class IX District of Pagaran Tapah Darussalam Rokan Hulu is good perfomed with ability pedagogical value 81.86

Jenis – Jenis Ikan Salai Yang Di Perdagangkan Di Pasar Dalu-dalu Kabupaten Rokan Hulu Provinsi Riau

Smoked fish is one of the pontential of superior products that are processed through pengasapan Indonesia and drying. This research has been carried out by the method of survey in December 2014 Market Dalu-dalu Kabupaten Rokan Hulu Riau Province. The resesrch aims is to spesies fish that arbitrage in Market Dalu-dalu. Fish that serve smoked fish traded found 10 types of fresh fish, namely: Barau ( Hampala macrolepidota), Baung (Mystus nemerus), gabus (Channa striata), lele jumbo (clarias gariepi ofnus), lele lokal (Claris batrachus), mas (Cyprinus carpio), motan (Thynnichthys polylepis), paten (Pangasius pangasius), selais (Ompok hypophthalmus), and tapah (Wallago leeri)

Jenis-jenis Burung (Aves) Yang Diperdagangkan Di Kawasan Kampung Padang Kabupaten Rokan Hulu

Study about species of bird wich are traded in Rokan Hulu regency especially in Kampung Padang has been done in December 2014 with survey method. Samples were found than identified and described by using the reference guide book. Result showed 3 order, 11 families and 19 species of birds wich are traded in Rokan Hulu regency especially in Kampung Padang. The most traded is Passeriformes