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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.
SIKAP MAHASISWA TERHADAP MATA KULIAH PANCASILA DI FKIP UNIVERSITAS RIAU supentri, supentri; Syamsurizal, Syamsurizal
Pelita Bangsa Pelestari Pancasila Vol 8, No 1 (2013)
Publisher : Pelita Bangsa Pelestari Pancasila

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Abstract

Penelitian ini bertujuan untuk mengetahui sikap mahasiswa terhadap mata kuliah Pancasiladi FKIP Universitas Riau. Mata kuliah pancasila merupakan mata kuliah yang wajibdiambil oleh setiap mahasiswa dan merupakan bagian dari mata kuliah pengembangankepribadian namun demikian sikap mahasiswa kurang menerima mata kuliah pancasilayang disebabkan oleh beberapa faktor yakni; materi yang diberikan, dosen yang mengajar,dan lingkungan belajar, yang dapat menyebabkan mahasiswa kurang antusias untukbelajar. Subjek penelitian ini adalah Mahasiswa FKIP Universitas Riau yang sudahmengambil mata kuliah Pancasila. Data dikumpulkan dengan menyebarkan angket,ditambah wawancara untuk memperkuat hasil angket. Setelah terkumpul data kemudiandikelompokan, selanjutnya dianalisa berdasarkan metode deskriftif kualitatif. Berdasarkanhasil analisis penelitian menunjukan bahwa 60% sikap mahasiswa terhadap mata kuliahPancasila adalah baik.
SURVEY KEPATUHAN WAJIB PAJAK PENGUSAHA UKM DI KOTAMADYA DEPOK Siambaton, Ernita; Ginting, Riskon; Syamsurizal, Syamsurizal
Ekonomi & Bisnis Vol 14, No 1 (2015): Jurnal Ekonomi dan Bisnis Vol 14 No 1 2015
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/eb.v14i1.752

Abstract

Abstrak Penelitian ini bertujuan untuk mengetahui kepatuhan pengusaha UKM membayar pajak di Kotamadya Depok. Kepatuhan tersebut dapat diukur dari seberapa banyak pengusaha UKM yang telah melakukan kewajiban untuk membayar pajak dalam satu tahun. Data saat ini menunjukkan pengusaha UKM masih rendah kepatuhannya untuk membayar pajak, oleh sebab itu pemerintah memberikan penyuluhan dan sosialisasi tentang pajak kepada UKM. Pemerintah melalui Peraturan Pemerintah No. 46 Tahun 2013 memberikan kemudahan kepada pelaku UKM dengan menyederhanakan administrasi pajak dengan hanya membayar pajak 1 % dari omzetnya setiap bulan sampai akhir tahun. Pemerintah menyadari bahwa pelaku UKM tidak begitu mengerti tentang laporan pajak dan laporan keuangan suatu usaha. Penelitian berusaha untuk melihat kendala apa yang dihadapi pelaku UKM untuk dapat meningkatkan kepatuhannya. Kata Kunci: Pajak, UKM, Kepatuhan, Penyuluhan dan Bayar.
Validitas Booklet pada Materi Bakteri untuk Peserta Didik Kelas X SMA Apriyeni, Olda; Syamsurizal, Syamsurizal; Alberida, Heffi; Rahmi, Yosi Laila
Jurnal Edutech Undiksha Vol 9, No 1 (2021)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jeu.v9i1.33805

Abstract

Teaching and learning activities are the most basic activities in the entire educational process. The success of learning itself depends on the use of the selected learning resources. Based on the results of the observation questionnaire learning sources in the form of textbooks, student worksheets (LKPD), PPT slides and modules are available and used in schools, but additional learning resources are still needed because the learning resources used have not been able to attract interest and increase student learning motivation . Based on this, a product was developed in the form of a booklet on material for class X SMA students that was valid and practical. The average result of the booklet validity value is 86.45% with very valid criteria with a description of 84.25% in the content feasibility aspect, 88.33% in the linguistic aspect, 86.11% in the presentation aspect, and 87.50% in the the graphic aspect. The conclusion of the research that has been done is the development of booklets on bacterial material for class X SMA students fulfills the very valid category and is very suitable for use as a learning resource.
The Analysis of the Teacher-Made Multiple-Choice Tests Quality for Natural Science Subject Putra, Erik Nanda; Syamsurizal, Syamsurizal; Lufri, Lufri; Zulyusri, Zulyusri
Journal of Education Research and Evaluation Vol 5, No 3 (2021)
Publisher : LPPM Undiksha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jere.v5i3.33219

Abstract

This study aims to determine the quality of the questions quantitatively (reliability, discriminating power, difficulty level, and distractor effectiveness). This research is descriptive research. The population in this study were all student answer sheets in the Middle Semester II Science Assessment Exam class VIII SMP Negeri 2 Koto XI Tarusan Academic Year 2020/2021. The sampling technique used total sampling with a sample size of 107 student answer sheets. Data were analyzed using ANATES ver. 4.0.2 program. Based on the research results obtained: 1) reliability of 0.50 with sufficient criteria; 2) the distinguishing power of the bad and good categories which dominates, namely 30% while 25% is moderate and 7.5% is very good; 3) the level of difficulty obtained by the criteria was medium with 62.5%, while the easy questions were 15%, the difficult questions were 12.5% and the very difficult questions were 2.5%; 4) the effectiveness of the distractor, there were 35 items or 87.5% of the effectiveness of the distractor which was functioning properly. Meanwhile, for 5 items, the quality of the distractor does not function or has very poor effectiveness. Thus, it can be concluded that these questions have met the criteria for good questions, but some questions need to be revised.
PEMAHAMAN KARYAWAN BTM AT-TAQWA TERHADAP TARJIH MUHAMMADIYAH ASPEK IBADAH Syamsurizal, Syamsurizal; Rosdialena, Rosdialena; Marlius, Yoni
Menara Ilmu Vol 15, No 1 (2021): VOL. XV NO.1 APRIL 2021
Publisher : LPPM Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/mi.v15i1.2496

Abstract

This study aims to reveal how the understanding of BTM at-Taqwa employees to the results of muhammadiyah tarjih verdicts, especially in the aspect of worship, is important to do considering all human resources working in muhammadiyah business charities are required to practice Islamic teachings, especially those in accordance with the decision of muhammadiyah tarjih results. The research was conducted at BTM at-Taqwa Muhammadiyah Padang City, the approach used is qualitative, data collection techniques using observation, interview and documentation. The results of this study prove that btm at-Taqwa Muhammadiyah employees do not have a strong understanding of the verdict of Tarjih Muhammadiyah, especially in the aspect of worship, this conclusion is based on the low practice of BTM at-Taqwa employees to pray in accordance with the results of tarjih verdicts. The cause of the low understanding of employees to the understanding of tarjih is due to the lack of coaching in the form of studies, no regulations that support in writing, the absence of leadership control, and the absence of cadre training such as baitul Arqam, and Darul Arqam.
Analisis Butir Soal Biologi Kelas VIII Madrasah Tsanawiyah Negeri 6 Kerinci Menggunakan Program Komputer Anates 4.0 For Windows Fietri, Winda Ayu; -, Lufri -; -, Syamsurizal -; -, Zulyusri -
Jurnal Pendidikan Biologi undiksha Vol 8, No 2 (2021)
Publisher : Undiksha

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Abstract

This study aims to see the quality of the items of Biology class VIII Madrasah Tsanawiyah Negeri 6 Kerinci about the respiration system using the Anates version 4. This research uses a quantitative descriptive approach and data analysis techniques are carried out by using a test technique in the form of questions about the respiration system in question. item in multiple choice form. The population in this study were all students of class VIII Kerinci as many as 40 students. The sampling technique used was simple random sampling. Data analysis used Anates version 4 computer program for windows. The results showed that the level of validity of the questions was 0.43; the reliability level of the questions is high, namely 0.61; sufficient distinguishing power, namely 36%; medium difficulty level, namely 88%; and the quality of the outwit is 100% excellent.
Analysis of Implementation Psychomotor Assessment of Virus Material in SMA/MA/SMK: Urgency of Assessing the Implementation of Healthy Behavior during the COVID-19 Pandemic Ferdyan, Rhavy; Syamsurizal, Syamsurizal; Lufri, Lufri; Zulyusri, Zulyusri
Journal of Biology Education Vol 10 No 1 (2021): April 2021
Publisher : FMIPA UNNES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbe.v10i1.45382

Abstract

Biology is a subject that bridges students' knowledge about this pandemic period, where this subject must present knowledge about viruses. In fact, the curriculum designs material that is very detailed and thoroughly discusses viruses found at the SMA / MA / SMK level, but the very minimum requires teachers to evaluate psychomorphic learning related to the application of healthy living habits and preventive efforts to campaign against viruses. Through this article, it will be explained how important psychomotor assessment of this virus is, where the condition of students must first have the competence and do real practicum in preventing virus diseases, especially COVID-19. This article is the result of observations on the implementation of psychomotor assessment, literature review, and documentation studies that give rise to ideas on the importance of psychomotor assessment of virus material in students. Virus material is very important to be presented in biology learning with consideration of a very wide coverage of material (virology), contextual material, the material as a design for health education indicators, and as an indicator design with epidemic response education.
Efektifitas Pembelajaran Daring dan Tingkat Ketercapaian Mutu pada Masa Pandemi Covid-19 di Universitas Jambi Fortunasari, Fortunasari; Syamsurizal, Syamsurizal; Adrefiza, Adrefiza; Kurniawan, Dedy
Lembaran Ilmu Kependidikan Vol 50, No 1 (2021): April
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/lik.v50i1.29336

Abstract

Dalam masa pandemi Covid-19 penyelenggaran pembelajaran daring telah berjalan pada semester genap tahun akademik 2019/2020. Penelitian ini bertujuan untuk memonitor efektifitas  pembelajaran daring di Universitas Jambi dan dampaknya terhadap pencapaian standar mutu Unja. Metode penelitian yang dilakukan melalui survey deskriptif dan evaluatif dimana populasinya adalah seluruh dosen dan mahasiswa yang terdaftar pada semester genap tahun akademik 2019/2020. Hasil penelitian menunjukkan sebanyak 403 dosen menganggap 72% telah berjalan dengan baik dari aspek teknologi(75%), pedagogi(67%), etika(79%), dukungan fasilitas(68%), evaluasi(67%) dan desain interface(68%) sedangkan dari sisi mahasiswa sebanyak 7806 orang memperlihatkan 70% pembelajaran daring  telah berjalan efektif bila ditinjau dari aspek praktikalitas(65%),interaktifitas (62%),sumber belajar lain (74%), berkolaborasi (68%), keotentikan (73%) dan kontrol belajar (80%). Kemudian dampaknya terhadap pencapaian standar mutu Unversitas Jambi pada kompetensi lulusan termasuk kategori kompeten dalam literasi data (67%), teknologi(80%) dan humanistik (69%). Selain itu efektifitas pemenuhan standar isi sudah sesuai CPL (79%), pencapaian standar proses kategori baik (40%)  dan ketercapaian CPL(70%) .Kata Kunci: daring, covid-19,efektifitas, dampak, standar
Co-Authors -, Maison -, Zulyusri - Abdiel Reihan Afja, Oktavia Dewi Afrida Afrida Agam, Cindy Felia Akrom, Akrom Alvito Daffa Gustyo Amanda, Putri Aminuyati Andrianto Andrianto Andrianto Andrianto ANDRINI, ROZI Anggrama, Shalsa Anggriyani, Ria Anita Wulandari Anwar Mustofa Apriyeni, Olda Apriyoza, Wandra Ardi Ardi Arie Gusman Asrial Asyura, Maury Attifah, Yusni Ayu Lestari Ayunda Friatma Bambang Hariyadi Chandra, Yanita Ella Nilla Darul Ilmi Deani Nabila Faiza Dedy Kurniawan Dela Setia Cahyani Desminar, Desminar Dewi Stalastiana Dewi, Fatria Dwi Ardianti Dwi Kurnia Hayati Effiyaldi, Effiyaldi Eka - Sastrawati Eka Charisma Maulidia EKA SARI Elfira, Ida Elisma Elisma Epinur Epinur Ernita Siambaton Ernita Siambaton, Ernita Erwin Permana Erwin Permana Fadilah, Nailatul FAJRINA, SUCI Famita Wijayanti Farida Ariani Ferdyan, Rhavy Fidela, Wita Fietri, Winda Ayu Fina Indah Putri Fira Farizka Firdaus, Windra Fitri Suarni fitri, irsadul Fitria, Anif Fitria, Rahmayani Fitrianingsih Fitrianingsih Forendra, Salsabila Fortunasari, Fortunasari Fransiska, Sherli Fuadiyah, Sa’diatul Fuadiyah, Sa’diatul Gusti, Utari Akhir Halim, Syaflin Hamizar, Hamizar harfarici, Rici Gusti Hary Soedarto Harjono Haryanto Haryanto Heffi Alberida Helendra . Helendra Helendra Helmi, Lika Akana Hikmawati Hikmawati Hubbal Khair Husna Mayasari Ifnu Saputra Intan Maghvira Ismawati Sitorus Ivo Novidsa Jefri Marzal Junaidi, Listya Devi Kamid Kamid Kevin Prayoga Khairunisa, Madona Latifa, Anisa Lativa, Veren Lendriadi, Lendriadi Lufri Lufri Lutviani, Metya Margo Purnomo Marlius, Yoni Masafumi Kaneko Meksi Andari Putri Melayu, Melani Arma Mochammad Imron Awalludin Mohammad Mostaqul Huq Moralita Chatri Muhamad Athalah Ramadhan Muhammad - Rusdi Muhammad Rafiq Muhammad Syukri Nabilah, Adzra Nadila, Andieni Delia Nadila2 Delia Nasrullah Djamil Nasution, Indriani Ngaliman, Ngaliman Nisyah, Yulinarti Choinirul Nobutoshi Murakami Nora Afnita Novi Yanti Novi Yanti Novita Sari Dewi Nur Hasanah Nur'aini, Nur'aini Nurnasrina Nurnasrina Oktaviani, Featy Pinta Murni Purwitasari, Maria Evy Puspa Dwi Pratiwi Putra, Erik Nanda Putri Septi Nofriands Rahil Khalisoh Rahmadhani Fitri Rahmat Murbojono Rahmawati Darussyamsu Rahmiyati Rahmiyati, Rahmiyati Ramadhani, Syifa Zalina Ratna Wardani Rayandra Asyhar Relsas Yogica, Relsas Ria Anggriyani Riana, Puspa Cantika Riskon Ginting Rismawati, Viona Rizka Sakinah Rizky Alfiani Fadilah Rosdialena Rukun Santoso Sa'diatul Fuadiyah Salsabila Mukhtar Saputra, Edriagus Sara, Nenni Sari, Eza Permata Satoru Tamura Selaras, Ganda Hijrah Sepriadi, Ilham Septian, Agil Siregar, Lukman Hakim Siska Farma Sitti - Aminah Sri Isnaeni Achmad Sri Yanti Suari, Muhammad Rayhan Subagiyo Subagiyo Suci Fariah Sumiarti Sumiarti Supentri Sutikno Aminah Sutrisno, Sutrisno Syaflin Halim Tengku Sungky Diraputra Timma Dormauli Siallagan Tri Murnilawati Uce Lestari Uce Lestari Vina Septiani Wandi, Joni Indra Winda Ayu Fietri Winda Tri Wahyuni Yanti Srinita Utami Yanti, Elma Rida Yosi Laila Rahmi Yosi Safritry Yudistira, Olla Krisliani Yuliawati Yusrialis Yusrialis Yustika Trisna Zafit, Vernika Zahra, Raudahtul Zein, Muhammad Zubaidi Zubaidi Zulbasri, Muhammad Zulyusri - - Zulyusri Zulyusri