Garuda - Garba Rujukan Digital

Aktivitas Antikanker Pektin Kulit Buah Kakao Terhadap Jumlah Sel Goblet Kolon Rizki, Kinanthi P; Rochmah, Wahyu W; Cempaka, Nandan G; Hartono, Sugi; Fajrin, Fifteen A
Indonesian Journal of Pharmaceutical Science and Technology Vol 2, No 3 (2015)
Publisher : Indonesian Journal of Pharmaceutical Science and Technology

Jumlah penderita kanker kolon yang tinggi mendorong penelitian akan pengobatan yang lebih efektif dan mengurangi efek samping dari pengobatan masa kini, salah satunya adalah dengan pengobatan secara herbal. Kulit buah kakao (Theobroma cacao) memiliki kandungan pektin yang diketahui dapat menekan pertumbuhan sel kanker. Penelitian ini bertujuan untuk mengetahui potensi aktivitas antikanker kolon dari pektin kulit buah kakao (Theobroma cacao) pada tikus yang diinduksi dengan 7,12-dimethylbenzen(Î±)anthrasena (DMBA) dengan dosis 20 mg/kgBB. Tikus dikelompokkan menjadi empat kelompok yaitu kelompok I kontrol negatif, kelompok II pektin dosis 8 mg/kgBB, kelompok III pektin dosis12 mg/kgBB, dan kelompok IV pektin dosis 16 mg/kgBB. Hasil penelitian menunjukkan dosis uji tertinggi, yaitu 16 mg/kgBB memberikan aktivitas terbaik dalam memulihkan kembali sel goblet yang rusak akibat induksi dari senyawa karsinogen. Dengan demikian dapat disimpulkan bahwa pektin kulit buah kakao (Theobroma cacao) memiliki potensi aktivitas antikanker kolon pada dosis uji.Kata kunci: DMBA, kulit buah kakao, pektin, sel goblet.Kata kunci: DMBA, kulit buah kakao, pektin, sel goblet

Population Density on Types of Waste Disposal in Malang City Lirofiatillah, Lirofiatillah; Lestari, Rina Fiji; Hartono, Sugi; Sueb, Sueb
El-Hayah : Jurnal Biologi Vol 7, No 1 (2018): EL-HAYAH (VOL 7, NO 1 September 2018)
Publisher : Department of Biology Science and Technology Faculty UIN Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/elha.v7i1.7243

The population growth in Indonesia experiencing a very high development, causing population density. This study aims to know about environmental conditions, the density of population and waste disposal in Malang city and effect between population density and types of landfills. The method was an observational study using observation, questionnaire and closed interview guidelines. The results of this study were (1) the environmental conditions categorized good, (2) the average population density is 175,814 people per square km, (3) 63.33% respondents road throw domestic waste and not processed. (4) the population density variable does not influence the type of waste disposal.

DEDUCTIVE OR INDUCTIVE? PROSPECTIVE TEACHERSâ€™ PREFERENCE OF PROOF METHOD ON AN INTERMEDIATE PROOF TASK Siswono, Tatag Yuli Eko; Hartono, Sugi; Kohar, Ahmad Wachidul
Journal on Mathematics Education Vol 11, No 3 (2020)
Publisher : Department of Doctoral Program on Mathematics Education, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jme.11.3.11846.417-438

The emerging of formal mathematical proof is an essential component in advanced undergraduate mathematics courses. Several colleges have transformed mathematics courses by facilitating undergraduate students to understand formal mathematical language and axiomatic structure. Nevertheless, college students face difficulties when they transition to proof construction in mathematics courses. Therefore, this descriptive-explorative study explores prospective teachers' mathematical proof in the second semester of their studies. There were 240 pre-service mathematics teachers at a state university in Surabaya, Indonesia, determined using the conventional method. Their responses were analyzed using a combination of Miyazaki and Moore methods. This method classified reasoning types (i.e., deductive and inductive) and types of difficulties experienced during the proving. The results conveyed that 62.5% of prospective teachers tended to prefer deductive reasoning, while the rest used inductive reasoning. Only 15.83% of the responses were identified as correct answers, while the other answers included errors on a proof construction. Another result portrayed that most prospective teachers (27.5%) experienced difficulties in using definitions for constructing proofs. This study suggested that the analytical framework of the Miyazaki-Moore method can be employed as a tool to help teachers identify students' proof reasoning types and difficulties in constructing the mathematical proof.

The Effect of Learning Style on Academic Achievement of Prospective Teachers in Mathematics Education Kurniawan, Agus Prasetyo; Hartono, Sugi
Journal of Mathematical Pedagogy (JoMP) Vol. 2 No. 1: December 2020
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jomp.v2n1.p26-31

This study aims to determine the effect of learning styles on academic achievement of prospective teachers in mathematics education. The method used in this research is descriptive analytic with cross sectional approach. The subjects in this study were 66 students of 5th semester mathematics education teacher candidates at the State Islamic University of Sunan Ampel Surabaya, Indonesia. Data were collected by two methods, namely the questionnaire method or questionnaire through the Visual Auditory and Kinesthetic (VAK) test to collect student learning style data and the documentation method to collect student academic achievement data which was carried out by using the chi square test to see the relationship between learning styles and academic achievement. The results showed that the most student learning styles were visual learning styles (54.5%), then auditory learning styles (24.2%) and finally kinesthetic learning styles (13.6%). Furthermore, there were some students who chose more than one learning style, namely visual-auditory (3.1%), visual-kinesthetic (3.1%), and auditory-kinesthetic (1.5%). After performing the statistical test, namely the chi square test, it is obtained that X2 count = 4.497 is greater than X2 table = 3.9403 at a significant level of 0.05. This shows that there is a relationship between learning styles and academic achievement of prospective mathematics education teacher students. Keywords: learning style, academic achievement, prospective teachers, mathematics education

Creative Thinking Ability of Visual-Dominant and Visual-Kinesthetic Students in Solving Statistics Problems Fadlilah, Chusnul; Karim, Karim; Hartono, Sugi
Journal of Mathematical Pedagogy (JoMP) Vol. 2 No. 2: July 2021
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jomp.v2n2.p40-51

Creative thinking ability is a personal ability to carry out mental activities to produce an innovative new product. This study aims to analyze the level of creative thinking ability (LCT) of students with visual-dominant and visual-kinesthetic learning styles in solving statistics problems. Participants of this qualitative research are two junior high school students in 8th grade. The participant selection using purposive sampling technique, namely subjects who have a visual-dominant and visual-kinesthetic learning style. The instrument consisted of a learning styles questionnaire, the statistical problem-solving test, and task-based interviews. The indicators used to assess creative thinking products include fluency, flexibility, and originality. The data collected to be analyzed using the data source triangulation technique (reducing, presenting, verifying, and conclusions). The results showed that students who had a visual-dominant learning style met the indicators of fluency and originality. So, he was categorized at LCT 3 (creative). Meanwhile, students who have a visual-kinesthetic learning style only meet fluency indicators, so he was categorized at LCT 1 (almost not creative).

Deductive or inductive? Prospective teachers’ preference of proof method on an intermediate proof task Siswono, Tatag Yuli Eko; Hartono, Sugi; Kohar, Ahmad Wachidul
Journal on Mathematics Education Vol. 11 No. 3 (2020): Journal on Mathematics Education
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar

The emerging of formal mathematical proof is an essential component in advanced undergraduate mathematics courses. Several colleges have transformed mathematics courses by facilitating undergraduate students to understand formal mathematical language and axiomatic structure. Nevertheless, college students face difficulties when they transition to proof construction in mathematics courses. Therefore, this descriptive-explorative study explores prospective teachers' mathematical proof in the second semester of their studies. There were 240 pre-service mathematics teachers at a state university in Surabaya, Indonesia, determined using the conventional method. Their responses were analyzed using a combination of Miyazaki and Moore methods. This method classified reasoning types (i.e., deductive and inductive) and types of difficulties experienced during the proving. The results conveyed that 62.5% of prospective teachers tended to prefer deductive reasoning, while the rest used inductive reasoning. Only 15.83% of the responses were identified as correct answers, while the other answers included errors on a proof construction. Another result portrayed that most prospective teachers (27.5%) experienced difficulties in using definitions for constructing proofs. This study suggested that the analytical framework of the Miyazaki-Moore method can be employed as a tool to help teachers identify students' proof reasoning types and difficulties in constructing the mathematical proof.

Perancangan Pembelajaran Pengajuan dan Pemecahan Masalah Matematika Bagi Guru SMP Kabupaten Magetan Siswono, Tatag Yuli Eko; Rahaju, Endah Budi; Ismail, Ismail; Hartono, Sugi; Indarasati, Nanda Ayu
Aksiologiya: Jurnal Pengabdian Kepada Masyarakat Vol 6 No 4 (2022): November
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/aks.v6i4.6619

Pengajuan dan pemecahan masalah merupakan pemicu keterampilan berpikir kritis maupun berpikir kreatif yang sesuai dengan tujuan kurikulum saat ini. Â Kedua konsep tersebut perlu diimplementasikan dalam pembelajaran, sehingga para guru perlu dibekali keterampilan merancang pembelajaran tersebut sekaligus memahami konsep masalah, pemecahan dan pengajuan masalah. Untuk mencapai tujuan tersebut, diperlukan program pelatihan guru untuk memantapkan pemahaman guru tentang pemahaman konten dan desain pembelajaran berbasis pengajuan dan pemecahan masalah matematika. Guru yang terlibat adalah 22 guru SMP yang ditugaskan oleh Dinas Pendidikan Kabupaten Magetan. Metode pelaksanaan terdiri dari tahap persiapan dengan melakukan koordinasi dengan mitra dan tim pelatih untuk merancang instrumen dan materi pelatihan. Tahap pelaksanaan terdiri dari kegiatan tatap muka dan kegiatan mandiri dengan diawali pemberian angket untuk analisis awal (pra-tes), pemberian materi pelatihan, praktik penyusunan soal, presentasi, dan kegiatan mandiri merancang perangkat pembelajaran.Â Tahap selanjutnya evaluasi dan tindak lanjut dilakukan dengan pemberian angket akhir pelatihan (pasca-tes) dan angket refleksi kegiatan. Hasil pelatihan menunjukkan 81,8% guru mampu memahami konsep dan mendesain pembelajaran berbasis pengajuan dan pemecahan masalah. Hasil evaluasi kegiatan guru menunjukkan 95,45% guru cenderung mengatakan baik dan menyarankan kegiatan perlu ditindaklanjuti.

Title

Found 7 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 7 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 7 Documents
Search