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Photoaffinity Labeling Study for Identification of the Target Protein of Antimalarial Isoquercitrin Syamsurizal Syamsurizal; Satoru Tamura; Mohammad Mostaqul Huq; Masafumi Kaneko; Nobutoshi Murakami
Jurnal Matematika & Sains Vol 12, No 2 (2007)
Publisher : Institut Teknologi Bandung

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Abstract

Isoquercitrin (1), a flavonol monoglycoside showed a strong antimalarial activity. In order to identify the target protein in Plasmodium falciparum, a photoreactive isoquercitrin analog, 2-[2-[2-(biotinylaminoethoxy) ethoxy]-4-[3-(trifluoromethyl)-3H-diazirin-3-yl] benzoic acid isoquercitrinyl ester (2) has been synthesized which closely mimics the action of 1. Photoaffinity labeling of 2 revealed the apparent molecular mass of ca 70 kDa on the uninfected erythrocyte membrane.
Sintesis Turunan Eusiderin A dan Evaluasi Aktifitas Antimakan terhadap Hama Tanaman, Epilachna sparsa Syamsurizal Syamsurizal; Afrida Afrida
Jurnal Matematika & Sains Vol 14, No 1 (2009)
Publisher : Institut Teknologi Bandung

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Abstract

Eusiderin A(1) which isolated from bulian wood (Eusideroxylon zwagery) was converted into five congeners (2- 6) which designed on account of the clogP smaller than 1. The structures of these five compounds were determined based on their spectroscopic data including 1H- NMR, 1H-1H-COSY, and NOESY spectra and mass spectra. The antifeedant activity and the brine shrimp lethality test against Artemia salina were evaluated to demostrate that 2, 3 and 6 increased significantly the antifeedant activity than eusiderin A, while the compounds(2-6) were classified as non toxic.
The Effect of Problem Based Learning (PBL) Models Containing Science Literacy On Student’s Learning Competencies In Digestive System Human Material at Junior High School 29 Padang Yanti Srinita Utami; Moralita Chatri; Relsas Yogica; Syamsurizal Syamsurizal
ATRIUM PENDIDIKAN BIOLOGI Vol 4, No 1 (2019): Atrium Pendidikan Biologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/apb.v4i1.4819

Abstract

This research is based on the problems that exist at junior high school 29 padang, namely the learning model that is less varied, students' learning competencies are still low. Efforts that can be done are applying the learning model problem based learning (PBL) with scientific literacy in the digestive system material at 29 Padang Junior High School. The purpose of this study was to determine the effect of the application of the learning model that Problem Based Learning (PBL)contained scientific literacy to the learning competencies of Grade VIII students of 29 SMP Negeri Padang. This research is an experimental research with randomized control group posttest only design. The study population is the students of class VIII Junior high school 29 padang 2018/2019 academic year which spread into nine classes. Sampling research using simple random sampling. The results were selected class VIII.3 as experimental class and class VIII.4 as a control class.The hypothesis in this study was tested using the t-test. The results of the study using the t-test it can be concluded that the competency of students' knowledge of the value of tcount3,34> ttable 1.67, in the competency attitude the value of tcount4.26> ttable 1.67, and the competence of value skills tcount 4.21> ttable 1.67. This shows that the hypothesis is accepted. So, it can be concluded that the application of PBL models with scientific literacy can improve the competency of knowledge, attitudes, and skills of class VIII students of junior high school 29 Padang. Keywords: Problem Based Learning, Sains Literation, Learning Competency 
The Effect of Teams Games Tournament (TGT) Models Containing Science Literacy on Students’ Learning Competencies in Ecology Material at Junior High School 10 Padang Winda Tri Wahyuni; Rahmadhani Fitri; Ganda Hijrah Selaras; Syamsurizal Syamsurizal
ATRIUM PENDIDIKAN BIOLOGI Vol 4, No 3 (2019): Atrium Pendidikan Biologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/apb.v4i3.6162

Abstract

This research is based on the problems that exist at senior high school 10 Padang, namely the learning model that is less varied, students' learning competencies are still low. Efforts that can be done are applying the learning model Teams Games Tournament (TGT) with scientific literacy in the  Ecology material at senior high school 10 Padang. The purpose of this study was to determine the effect of the application of the learning model that Teams Games Tournamen (TGT) contained scientific literacy to the learning competencies of Grade X students of senior high school 10 Padang. This research is an experimental research with randomized control group posttest only design. The study population is the students of Grade X senior high school 10 Padang 2018/ 2019 academic year which spread into eight classes. Sampling research using simple random sampling. The results were selected class X.8 as experimental class and class X.5 as a control class. The hypothesis in this study was tested using the t-test. The results of the study using the t-test it can be concluded that the competency of students' knowledge of the value of tcount 3.34> ttable 1.67, in the competency attitude the value of tcount 2.15> ttable 1.67, the competency attitudes tcount 5.26> ttable 1.67, and the competence of value skills tcount 1.95> ttable 1.67. This shows that the hypothesis is accepted. So, it can be concluded that the application of TGT models with scientific literacy can improve the competency of knowledge, attitudes, and skills of class X students of senior high school 10 Padang.
The Effect of Learning Model Two Stay Two Stray Containing Science Literacy on Learners Competencies at Junior High School 25 Padang Yosi Safritry; Moralita Chatri; Relsas Yogica; Syamsurizal Syamsurizal
ATRIUM PENDIDIKAN BIOLOGI Vol 4, No 1 (2019): Atrium Pendidikan Biologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/apb.v4i1.5533

Abstract

The research problems at SMPN 25 Padang namely learning activities carried out have little opportunity to be active in communicating fellow students, the learning interest of students is lacking, there is no learning model charged with scientific literacy, it is not yet known the effect of learning models containing literacy on students' learning competencies. The purpose of the study was to determine the effect of student learning competencies through the learning model of two stay two stray with scientific literacy at SMP 25 Padang. This type of research is experimental research with the design of the static group comparison design. The population of this study were all VII grade students of SMP 25 Padang. Sampling using a porposive sampling technique. Assessing the results of the two-class learning comparison, namely in class VII.4 as the experimental class, used the learning model of two stay two stray with scientific literacy, while class VII.2 as the control class. Based on the results of the students' competency knowledge research, the value of tcount was 3,92> ttable 1,67, the attitude competency was 81% for the experimental class, 72% for the control class and in the skills competency tcount 4,20> ttable 1,67. This shows that the hypothesis is accepted. The conclusion of the study is that the application of the learning model of two stay two stray with scientific literacy has a positive effect on the competency of knowledge, attitudes and skills ofjunior high school 25 PadangPadang. 
The Influence of Thinking Aloud Pair Problem Solving (TAPPS) Learning Model Charged Science Literacy on Students Learning Competencies in the Material of Human Reproductive System at SMAN 1 Enam Lingkung Intan Maghvira; Relsas Yogica; Ganda Hijrah Selaras; Syamsurizal Syamsurizal
ATRIUM PENDIDIKAN BIOLOGI Vol 4, No 3 (2019): Atrium Pendidikan Biologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/apb.v4i3.6165

Abstract

The Problem of the research at SMAN 1 Enam Lingkung was that the Biology learning process is less varied and teacher-centered, students were unable to solve problems in learning, low learning competencies of students from aspects of knowledge, attitudes, and skills,and low science literacy abilities of students. The purpose of this study was to determine the effect of applying thinking aloud pair problem solving learning model with science literacy on students learning competencies in human reproductive system material at SMAN 1 Enam Lingkung.This type of research is an experiment with a randomized control group post-only only design. The population was all class XI of SMAN 1 Enam Lingkung which were registered in the 2018/2019.Sampling was done using cluster random sampling, and the chosen sample was the XI MIPA 2 class as the experimental class, and the XI MIPA 1 class as the control class. The instruments used were in the form of posttest questions for knowledge competency, observation sheets for attitude and skill competencies. Based on the results of the knowledge competency research, the tcount was 5.14> ttable 1.67, the competency attitude was tcount of 15.12> ttable 1.67, and in the competency of skills tcount was 9.45> t table 1.67. This is an aceppted hypothesis. It was concluded that the model thinking aloud pair problems solving with sains literacy improve the competencies of knewledge, attitude, and skills in the material of the human reproductive system at SMAN 1 Enam Lingkung.
The Influence of the Cooperative Learning Model PQ4R Type Containing Science Literacy on Students Learning Competencies of Ecosystem Material at SMA Negeri 1 Baso Ayu Lestari; Rahmawati Darussyamsu; Siska Farma; Syamsurizal Syamsurizal
ATRIUM PENDIDIKAN BIOLOGI Vol 4, No 4 (2019): Atrium Pendidikan Biologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/apb.v4i4.7199

Abstract

Problems of the research that exist at SMA Negeri 1 Baso, student learning competencies were still low. The effort that can be done was to apply the cooperative learning model with the PQ4R type with science literacy content of  SMA Negeri 1 Baso. The purpose of this research was to study student learning through a cooperative model of PQ4R type with science literacy content at SMA Negeri 1 Baso. This type of research was  experimental research with randomized posttest control group design. The population in this study were all students of class X MIPA SMA 1 Baso registered in 2018/2019. Sampling was done using the Simple purposive Sampling technique, which was chosen as the research samples were class X MIPA 1 as the experimental class and X MIPA 3 as the control class. The instrument used consisted of posttest questions for knowledge competency, observation sheets for students attitudes and skills. The assessment hypothesis using the t-test, can prove the knowledge competency tcount 4.09> ttable1.67, competency assessment value 86% with very good categories for experimemt class  and 58% with enough categories for control class. Competency of skill value tcount 3.55> ttable 1.67. This was an accepted hypothesis. Thus, It was concluded that the cooperative model of PQ4R type with science literacy content improve the competency of knowledge, attitude, and skill of class X MIPA students of SMA Negeri 1 Baso.
The Influence of the Cooperative Learning Model Think Pair Share Type Containing Science Literacy on Students Learning Competencies at SMA Negeri 1 Baso Eka Charisma Maulidia; Rahmadhani Fitri; Sa'diatul Fuadiyah; Syamsurizal Syamsurizal
ATRIUM PENDIDIKAN BIOLOGI Vol 4, No 4 (2019): Atrium Pendidikan Biologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/apb.v4i4.7174

Abstract

This research was based on the problems that exist in SMA Negeri 1 Baso, students learning competencies are still low. The efforts that can be made were applying the learning model Think Pair Share with science literacy on reproduction system material at SMA Negeri 1 Baso. The purpose of this research was to determine the increase in the students competencies  through the model Think Pair Share with science literacy in the material of reproduction system in SMA Negeri 1 Baso. This type of research is experimental research with a randomized control group posttest only design. The population in this study were all class XI MIPA SMA Negeri 1 Baso registered in the 2018/2019. Sampling was done using Purposive Sampling technique, which was chosen as the sample of the research was class XI MIPA 2 as the experimental class and  XI MIPA 3 as the control class. The instruments used were in the form of questions posttest for knowledge competency, observation sheets for students attitudes and skills. The hypothesis was tested using the t-test, can be concluded that the competence of learners knowledge (2.1>1.67), competency assessment value (6.17>1.67) and competency skills value (2.9>1.67). This was an accepted hypothesis. It was concluded that the cooperative model of Think Pair Share type with literacy improve the competency of knowledge, attitude, and skill of class XI MIPA students of SMA Negeri 1 Baso.
Analyzed Quality Question of Final Exam Whole Semester on Biology Course Class XI IPA SMA Negeri District South of Solok Selatan Academic Year 2015/2016 Ayunda Friatma; Syamsurizal Syamsurizal; Helendra Helendra
Bioeducation Journal Vol 1 No 2 (2017): Bioeducation Journal
Publisher : Universitas Negeri Padang Address: Biology Education Study Program Faculty Mathematics and Natural Science (FMIPA) Jl. Prof. Dr. Hamka Air Tawar Barat, Padang-West Sumatera-Indonesia Telp. +62751-7057420 - Fax.+62751-7058772 - Ph. +6281363229286

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bioedu.v1i2.43

Abstract

Researcher conducted a study with the aim to determine the quality of items in terms of analysis: 1) the validity of the content and empirical, 2) reliability, 3) level of difficulty, 4) distinguishing features, and 5) the function of detractors. This research is a descriptive study. The sample was a set of second semester final exam subjects biology grade XI IPA SMAof the school year 2015/2016 in the south region district solok. Quantitative analysis was performed by using Anates, while for the qualitative analysis carried out by the study table. Based on the results of data analysis, the result for the review of aspects: 1) the validity of the content, about 7.5% did not meet the material aspect, 40% of questions that do not meet aspects of construction, and 77.5% did not meet aspects of language problems, and validity empirically, 52.5% are invalid matter, 2) reliability, the test has a value of 0.67 belong to the category enough, 3) the level of difficulty, 5% classified as very easy matter, 22.5% easy, 40% about the medium, 17 , 5% about the difficult, and 15% about the very difficult, 4) different power, 15% of matter which is classified as very bad, 15% about the relatively ugly, 30% about enough, and 40% items good, 5) function options, for options that are not qualified humbug is 75% and the quality is 25%. It can be concluded that the end of the semester exam subjects biology grade XI of the school year 2015/2016 in the south region district solok not meet both criteria.
The Improvement of Attitude Competence’s Students With Implementation of Learning Community Strategy Through Inquiry Learning Model On Structure and Fuction of Plant Tissue Material Class VIII in SMPN 12 Padang Ivo Novidsa; Syamsurizal Syamsurizal; Rahmawati Darussyamsu
Bioeducation Journal Vol 1 No 2 (2017): Bioeducation Journal
Publisher : Universitas Negeri Padang Address: Biology Education Study Program Faculty Mathematics and Natural Science (FMIPA) Jl. Prof. Dr. Hamka Air Tawar Barat, Padang-West Sumatera-Indonesia Telp. +62751-7057420 - Fax.+62751-7058772 - Ph. +6281363229286

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bioedu.v1i2.46

Abstract

The learning process will be more meaningful by doing together to form a community, it will be improve the achievement of the competence of students. Strategies that can create a learning process together is a Learning Community (LC) strategy. LC strategy can be applied through learning models, especially learning models that require joint discussion and problem solving. One such learning model is the inquiry learning model. The purpose of this study is to see the effect of the implementation of the LC strategy through the inquiry learning model to the achievement of the attitude competence of students. This research conducted at SMPN 12 padang class VIII about the structure and function of plant tissue materials. This research is a experimental research with Non-Randomized Control Group Post test Only Design. The population of this research is all students of class VIII SMPN 12 Padang. The sample in this research is all students of class VIII.2 and VIII.3 SMPN 12 Padang. Data of this research obtained by used observation method and analyzed by used statistic t-test. The result showed that eksperimental class and control class have different achievement of the attiude competence with t calculate is 3,98 and t table is 1,67 with α 0,05. It showed that t calculate > t table, so it concluded that LC strategy through inqury learning model can improved the achievement of the attitude competence of students.