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All Journal Mitra Sains Natural Science: Journal of Science and Technology Jurnal MEKANIKAL Jurnal INSANIA Rekayasa Mesin GARIS Jurnal Mahasiswa Jurusan Arsitektur Jurnal Rekayasa Mesin Unnes Science Education Journal Union: Jurnal Ilmiah Pendidikan Matematika Jurnal CoreIT Journal of Innovative Science Education Jutis (Jurnal Teknik Informatika) Jurnal Kepariwisataan: Destinasi, Hospitalitas dan Perjalanan Community Empowerment Journal Peqguruang: Conference Series JUSTIN (Jurnal Sistem dan Teknologi Informasi)
Muhammad Irsyad
STAIN Purwokerto.
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Public Health Social Sciences Other

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Learning Cycle 7e Model - Based Multiple Representation to Reduce Misconseption of The Student on Heat Theme Irsyad, Muhammad; Linuwih, Suharto; Wiyanto, Wiyanto
Journal of Innovative Science Education Vol 7 No 1 (2018)
Publisher : Postgraduate, Universitas Negeri Semarang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (225.124 KB) | DOI: 10.15294/jise.v7i1.22529

Abstract

Students' success is determined by the conceptual that has been owned by the students while studying certain theme. New concepts will be elusive if the relevant concepts have not been owned by the students. Based on the observation and interview in SMP Negeri 1 Doro indicated that the heat concept is one of the elusive concept in science learning by the students. This study aims to: (1) describe the misconception experienced by students on the heat theme using a diagnostic test that is three-tier multiple choice, (2) determine the implementation of learning cycle 7E model-based multiple representation on the heat theme, (3) determine the effectiveness of the application of the learning cycle 7E model-based multiple representation in reducing misconceptions students on the heat theme. This study used a mixed method research with concurrent triangulation strategy. The identification results of students misconceptions on the heat theme obtained by average percentage of students' conceptions in the category Know the Concept (TK) is 43.44%. The average percentage of students' conceptions in the category Don’t Know the Concepts (TTK) is 15.31%. The average percentage of all misconceptions (MK) experienced by students in heat theme is 41.26%. Sub heat themes that most experienced misconceptions are ice melt events, boiling water events, heat calculations in the chart, the specific heat of water and oil, the absorption and release of heat, and the relationship of the specific heat with temperature changes. The implementation of learning cycle 7E model-based multiple representation obtained by the average percentage of 84.67% with the criteria very well. Learning cycle 7E model-based multiple representation became effective in reducing students misconceptions on the heat theme due to the decrease percentage of students misconceptions in the experimental class 18.72% is higher than the control class which only 9.68%. The analysis calculation result of the Equal Variance Assumed against independent sample of t test  towards the decrease of misconceptions level indicate significance (2-tailed) of 0.003 < 0.05, which means that there are differences in average reduction of misconceptions in the experimental class and control class.            Students' success is determined by the conceptual that has been owned by the students while studying certain material. New concepts will be elusive if the relevant concepts have not been owned by the students. Based on the observation and interview in SMP Negeri 1 Doro indicated that the heat concept is one of the elusive concept in science learning by the students. This study aims to: (1) describe the misconception experienced by students on the heat material using a diagnostic test that is three-tier multiple choice,(2) determine the implementation of learning cycle 7E model-based multiple representation on the heat material, (3) determine the effectiveness of the application of the learning cycle 7E model-based multiple representation in reducing misconceptions students on the heat material. This study used a mixed method research with concurrent triangulation strategy. The identification results of students misconceptions on the heat material obtained by average percentage of students' conceptions in the category Know the Concept (TK) is 43.44%. The average percentage of students' conceptions in the category Don’t Know the Concepts (TTK) is 15.31%. The average percentage of all misconceptions (MK) experienced by students in heat material is 41.26%. Sub heat materials that most experienced misconceptions are ice melt events, boiling water events, heat calculations in the chart, the specific heat of water and oil, the absorption and release of heat, and the relationship of the specific heat with temperature changes. The implementation of learning cycle 7E model-based multiple representation obtained by the average percentage of 84.67% with the criteria very well. Learning cycle 7E model-based multiple representation became effective in reducing students misconceptions on the heat material due to the decrease percentage of students misconceptions in the experimental class 18.72% is higher than the control class which only 9.68%. The analysis calculation result of the Equal Variance Assumed against independent sample of t test  towards the decrease of misconceptions level indicate significance (2-tailed) of 0.003 <0.05, which means that there are differences in average reduction of misconceptions in the experimental class and control class.
PRODUKSI ANTOSIANIN TERSALUT MALTODEKSTRIN DARI KELOPAK BUNGA ROSELLA (HIBISCUS SABDARIFFA, L.) DAN APLIKASINYA DALAM PENGOLAHAN PANGAN FUNGSIONAL Irsyad, Muhammad
Mitra Sains Vol 5, No 1 (2017)
Publisher : Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (525.106 KB)

Abstract

Production of anthocyanin maltodextrin coating from roselle?s petals (Hibiscus Sabdariffa,L.) and application in processing functional food has been investigated. The objective?s of research were : (1) To find out extract ratio of roselle?s petals to maltodextrin which is produce anthocyanin maltodekstrin coating which has a high degree of purity and stability. (2)  To find out the concentration of anthocyanin maltodextrin coaty in seaweed syrup which was produced syrup with organoleptic properties. Design of this research used one factor complete random design and group random design one factor complete random design to applied in handling influence of anthocyanin dark extract ratio of  roselle?s petals to maltodextrin (v/b) (1:1; 2:1; 3:1; 4:1; and 5:1) and group random design applied in organoleptic test of functional seaweed syrup which added by various concentration of coated anthocyanin maltodextrin about (g/100 mL) (0.125; 0.25; 0.375;  0.5 and 0.625) anthocyanin and tested by 30 untrained panelist. Total analysis of coated anthocyanin maltodextrin conducted every 1 week for 8 weeks starting at week 0 using spektrofotometer UV-VIS method at 535 nm wavelength. The result of the influence of  coated anthocyanin maltodextrin ratio showed anthocyanin number (highest), degree of purity (highest), and the smallest decrease in retention during storage was ratio 5:1 (v/b), then  with this ratio 5:1 conducted prediction of shelf life or expiration period using kinetics reaction model, so that expiration period of coated anthocyanin maltodextrin is 28 weeks. For the best organoleptik quality of functional seaweed syrup consistently is application of coated anthocyanin maltodekstrin with anthocyanin concentration is 0,625 g/100 mL.
TRANSLOKASI MERKURI (HG) PADA DAUN TANAMAN BAYAM DURI (AMARANTHUS SPINOSUS L) DARI TANAH TERCEMAR Irsyad, Muhammad; Sikanna, Rismawaty; Musafira, Musafira
Natural Science: Journal of Science and Technology Vol 3, No 1 (2014): Volume 3 Number 1 (March 2014)
Publisher : Univ. Tadulako

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Abstract

Research about mercury translocation (Hg) into the leaf of Amaranthus Spinosus L from polluted soil has been carried out. The research aim was to know influences of  remediation time on the abilty of  mercury absorptions , knowing the concentration of mercury distribution in the leaf of A. spinosus L and abilty of A. spinosus L as hyperacumulator plant to the mercury. Remediation times used 14 days, 21 days and  42 days. The consentration of Mercury on the growth medium were 25 ppm, 50 ppm, 75 ppm, and 100 ppm. The result showed  that the time of maximum absorptions were at remediation times of  14 days by mercury acumulation of 70.6901 mg/kg DM (Dry Measure). This value indicated that A. spinosus L. is hyperacumulator to the mercury and it have a potential as phytoremediator on the area that contaminated by mercury.
PENGARUH ALIRAN DUA FASA GAS-CAIR TERHADAP FLUKTUASI GAYA PADA DINDING PIPA HORIZONTAL Irsyad, Muhammad
Jurnal MEKANIKAL Vol 3, No 1 (2012)
Publisher : Jurnal MEKANIKAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (287.452 KB)

Abstract

One of the causes damage to the pipeline is vibration caused by fluctuation in the flow. Two-phase flow of liquid - gas at high pressure will provide a fluctuating impact load. Fluctuations in stream flow patterns are shown by the form. It is necessary to note the fluctuation force on a straight pipe wall in accordance with the flow pattern is formed. This study uses two-phase flow by varying the flow of air and water. Variations of water flow are 5,10,15, 20, 25, 30 and 35 lpm. While the variations of air flow used are 3, 5, 10, 15, 20, 25, 30, 35, 40, 45, and 50 lpm. The sensor used a strain gauge type GFCA 3-50 to read the strain in the pipe. The results indicate that the greatest force at the time of the bubble flow pattern  is 0.143 N and its value is relatively stable. While the slug flow pattern shows the force generated more fluctuations than the other flow patterns.
Guru Dituntut, Guru Menuntut Irsyad, Muhammad
INSANIA : Jurnal Pemikiran Alternatif Kependidikan Vol 13 No 2 (2008)
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan IAIN Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2079.866 KB) | DOI: 10.24090/insania.v13i2.293

Abstract

: the emergence of Act number 14, 2005 (Undang-Undang Nomor 14 tahun 2005) actually mean answer question about teacher problems. Until now, teacher always demanded to have professional skill and competency. However, on the other side, the consequence accepted did not equal with effort exertion for teacher profession. Teacher and lecturer act try to answer several problems about right and obligation of teacher and lecturer, even its implementation still far from what is teacher hoping and demanded.
Eksplorasi Etnomatematika pada Candi Asu Irsyad, Muhammad; Sujadi, A.A.; Setiana, Dafid Slamet
UNION: Jurnal Ilmiah Pendidikan Matematika Vol 8 No 1 (2020)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (395.819 KB) | DOI: 10.30738/union.v8i1.7609

Abstract

Penelitian ini dilakukan untuk mengeksplorasi unsur-unsur matematika (etnomatematika) pada Candi Asu. Metode yang digunakan dalam penelitian ini adalah metode kualitatif dengan pendekatan etnografi. Data-data yang dipakai adalah data yang diperoleh melalui studi literatur, observasi, wawancara dan dokumentasi. Studi literatur dan wawancara digunakan untuk mengetahui aspek budaya yang terdapat di Candi Asu. Observasi digunakan untuk mengetahui aspek matematis pada Candi Asu. Dokumentasi sendiri digunakan untuk mendukung data-data yang telah diperoleh baik data wawancara maupun observasi. Hasil dari penelitian ini adalah terdapat unsur-unsur matematika (etnomatematika) pada Candi Asu, yaitu konsep persegi panjang, trapesium, pencerminan, dan geometri ruang.
Kondisi Potensi Wisata di Ekowisata Sungai Mudal Kabupaten Kulon Progo Irsyad, Muhammad
Jurnal Kepariwisataan: Destinasi, Hospitalitas dan Perjalanan Vol. 4 No. 1 (2020)
Publisher : Sekolah Tinggi Pariwisata Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34013/jk.v4i1.36

Abstract

This article basically has three objectives, knowing the tourism potential on Mudal River Ecotourism, knowing the stages and factors that influence tourism development and recommending tourism development efforts. To achieve these objectives the method used is descriptive qualitative by analyzing the data using weighting and scoring. The results of the study indicate that the existing tourism potential is amenity, accessibility, attractions and institutional support. The four potentials are in the 3rd phase including consolidation. The development effort that can be taken is to maximize land use without damaging the environment by taking into account the number of tourists; organize public transportation; planning management in the future; expand market segmentation and product diversification; improve the quality of human resources; actively involve local communities, align policy with the community and control the environment.
Strategi Mencapai Penghidupan Berkelanjutan Pada Sektor Pariwisata Suku Tengger di Taman Nasional Bromo Tengger Semeru Irsyad, Muhammad; Irwan, Siti Nurul Rofiqo; Budiani, Sri Rahayu
Jurnal Kepariwisataan: Destinasi, Hospitalitas dan Perjalanan Vol. 4 No. 1 (2020)
Publisher : Sekolah Tinggi Pariwisata Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34013/jk.v4i1.38

Abstract

Sustainable livelihood is a concept achieved through strategies for utilizing livelihood assets natural, human, social, physical, and financial (DFID, 2001; Scoones, 2009; and Ellis, 2000). The Tengger tribe of Ngadas Village in Bromo Tengger Semeru National Park area (TNBTS) earns income from the agriculture and tourism sectors. Vulnerability due to natural disasters, trend changes in tourist arrivals, and climate change affect the five livelihood assets and livelihood strategies. The objective of this study is to analyze the five livelihood assets owned and to identify livelihood strategies. The descriptive qualitative method is used to assess five livelihoods by weighting and scaling. Livelihood strategies are analyzed by using interactive analysis method with primary and secondary data obtained. The results reveal that natural asset provides the highest value of financial asset, supported by social asset and physical asset. Human asset has the lowest value compared to other assets. The consolidation strategy is the dominant strategy done by dividing works between family members, hiring laborers, and using financial reserves. Other strategies are also carried out through opening a tourism business, planting new agricultural crops, maintaining the environment and culture from damaging external influences.
Karakteristik Perpindahan Panas Alat Penukar Kalor Tipe Staggered Fins Berisi Material Fasa Berubah dari Minyak Kelapa pada Proses Pembekuan Irsyad, Muhammad; Amrizal, Amrizal; Yulian, Aji Muhammad; Susila, M. Dyan
Jurnal Rekayasa Mesin Vol 11, No 2 (2020)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2020.011.02.3

Abstract

Indonesia, located in the tropics, has a dependency on air conditioners to obtain the thermal comfort of the room. This phenomenon resulted in the electricity consumption of the building increased significantly. On the other hand, Indonesia has the potential for cold air at night that is in the range of the thermal comfort temperature of the room or lower. The potential for cold air can be exploited by using Phase Change Material (PCM). Coconut oils are commodities that are widely produced in Indonesia. These materials have good potential to be developed as PCM because they have high latent heat and the temperature of phase change matches the temperature of the cold air at night. This research used a staggered fins type heat exchanger with a total of 39 pieces, mounted zig zag with the number of lines was 11. Fins were made of hollow aluminium with a size of 1x0.5 inches with a height of 150 mm. The PCMs used were coconut oil with a mass of 1.5 kg. The temperature and velocity of entering cold air were 20oC, 1 m/s, 2 m/s and 3 m/s. This study aims to determine the ability of PCM to release thermal so that it undergoes phase changes. The results showed that low cold airflow velocity resulted in subcooling while at 3 m/s, subcooling did not occur. The most considerable cooling rate occurred at 3 m/s that was 0.16oC/min. The percentage of solid mass formed after 60 minutes for each velocity was 37.8%, 58%, and 76.2%. The most considerable amount of heat absorbed by air was 167.7 kJ. Based on this, coconut oils are very potential to be developed by observing the temperature and velocity of the enter cold air.
PENGEMBANGAN ASESMEN AUTENTIK PADA MATERI INTERAKSI MAKHLUK HIDUP DENGAN LINGKUNGAN UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS SISWA Irsyad, Muhammad; Sukaesih, Sri
Unnes Science Education Journal Vol 4 No 2 (2015): July 2015
Publisher : Department of Integrated Science, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang in Collaboration with Perkumpulan Pendidikan IPA Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/usej.v4i2.7940

Abstract

Implementasi kurikulum 2013 pada pembelajaran IPA mengharuskan agar pembelajaran IPA menerapkan penilaian yang komprehensif dan berimbang. Berdasarkan hasil observasi dan wawancara di SMP Negeri 2 Kendal, didapatkan bahwa penilaian yang digunakan guru masih mengacu pada tingkatan kognitif rendah dengan menggunakan paper and pencil test, sedangkan aspek afektif dan psikomotorik belum terlaksana. Penelitian ini bertujuan untuk mendeskripsikan kelayakan asesmen autentik pada materi interaksi makhluk hidup dengan lingkungan dan mendeskripsikan keefektifan asesmen autentik dalam meningkatkan kemampuan berpikir kritis siswa. Penelitian ini menggunakan metode Research and Development (R&D). Asesmen autentik dinyatakan sangat layak dengan rerata persentase skor oleh validator asesmen sebesar 91,18% dan validator bahasa sebesar 89,71%. Hasil tanggapan siswa mengenai keterbacaan asesmen autentik diperoleh rerata skor 86% dengan kriteria sangat baik. Uji n-gain digunakan untuk mengetahui efektivitas asesmen autentik dalam meningkatkan kemampuan berpikir kritis siswa. Jumlah siswa yang mencapai n-gain dengan kriteria sedang dan tinggi sebanyak 27 siswa dari 30 siswa dengan persentase 90%. Hal tersebut menunjukkan bahwa penggunaan asesmen autentik efektif untuk meningkatkan kemampuan berpikir kritis siswa. Hasil tanggapan guru terhadap penggunaan asesmen autentik memperoleh rerata persentase 91,25% dengan kriteria sangat praktis. Curriculum implementation in 2013 on science learning requires that learning science implement a comprehensive and balanced assessment. Initial observation result on SMPN 2 Kendal shows that teachers use assessment still refers to the cognitive levels low by using a paper and pencil test, whereas affective and psychomotor aspects have not been implemented. This researches to determine the feasibility of authentic assessment in interaction of living organism with the environment theme and determine the effectivity of authentic assessment to improve student’s critical thinking skills. This research used Research and Development (R&D) method. Authentic assessment is stated very decent with the mean percentage substance validator score of 91.18% and language validator of 89.71%. The results of student’s responses on authentic assessment obtain a mean score of 86% with a very well criteria. N-gain test is used to determine the effectiveness of authentic assessment to improve student’s critical thinking skills. Students who achieve n-gain medium and high criteria is 27 students of 30 students with a percentage of  90%. It shows that the use of authentic assessment is effective to improve student’s critical thinking skills. The results of teacher’s responses on authentic assessment obtain a mean score of 91.25% with a very practical criteria.
Co-Authors Akhmad Qashlim, Akhmad Amrizal Amrizal Amrul Amrul Aulia, Weko Indira Romanti Dafid Slamet Setiana, Dafid Slamet Denik Agustito erman Balo, Asri Andrias H Fitria Sulistyowati Haryanto Haryanto istiqomah istiqomah Iwan Iskandar M. Dyan Susila Muhammad Fikry Musafira Musafira Niky Fetra, Niky Pratiwi, Trya Ayu Rahmad Kurniawan Rahmad Kurniawan Salsabillah, Angelia E. Siti Nurul Rofiqo Irwan Sri Rahayu Budiani Sri Sukaesih Suharto Linuwih Sujadi, A.A. Sukisno Sukisno, Sukisno Suwanto Sanjaya Syarli, Syarli Wiyanto - Yani, Susmi Syahfrida Yulian, Aji Muhammad Yuliani, Rika Yusra, Yusra