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MENINGKATKAN PEMAHAMAN SISWA MENGGUNAKAN PENDEKATAN JELAJAH ALAM SEKITAR (JAS) DENGAN METODE EKSPERIMEN PADA MATERI LIMBAH Erwan, Erwan; Achyani, Achyani
Bioedukasi Jurnal Pendidikan Biologi Vol 5, No 1 (2014): Mei 2014
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

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

Abstract

Student understanding is  how a student is able to maintain, differentiated, assumed, explains, and What has been received. Understanding rather than merely thinking activities, but did experience the mind (experience life). The things to do  to achieve student understanding  is by ways student actively exploring learn directly.   Approach to natural roaming  around alternative in learning biology. In this approach, student are required actively exploring, learning envirotment as a source of biology, will be able to increase student’s understanding. Conclusions of this study, learning opproach to natural roaming  around with experimental methods can increase student’s understanding in SMA Muhammadiyah 2 Metro school year 2011/2012 of pre-PTK to the cycle 2 be 54% and suggestion that research can be used increase the student’s understanding.Kata Kunci: Jelajah Alam Sekitar, Aktivitas Belajar, Hasil Belajar
TAKHRIJ AL-FURU’ ALAL USUL PERIODE IJTIHAD DI MASA SHAHABAT DAN TABI’IN (Kajian Sosiologi - Antropologi Hukum Islam) Erwan, Erwan
JURIS (Jurnal Ilmiah Syariah) Vol 17, No 2 (2018)
Publisher : IAIN Batusangkar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (712.193 KB) | DOI: 10.31958/juris.v17i2.1165

Abstract

This research reveals the truth about the reality of Islamic law and its scope. This study was a library research.  The data were obtained through the library method, namely by collecting data and materials from books that are relevant to this discussion, by reading, studying, and analyzing all the sources.  Sociological-anthropological understanding means discussing the truth of a fact in depth. Law as something that is related to humans, then the relationship between humans and other human beings is in a life interaction. Because without the interaction of life there will be no law (ibi societas ibi ius, zoon politicon). Law serves to regulate relations between people. But not all human actions have their regulation. Only actions or behavior that are classified as legal actions.  Legal law relations consist of bonds between individuals and individuals and between individuals and communities. In its efforts to regulate, the law adapts to the interests of society well. As a collection of rules or principles, the law has a general and normative content, the legal principle aims to protect the interests of human beings as social beings. Therefore the law must be obeyed, must be carried out and maintained, but not violated. Humans are given the mind to think, then ijtihad is the deployment of the ability of the brain. The real fact shows that thisdynamics had existed during the Prophet's benediction and tabi'in.
SINTESIS DAN ANALISIS SIFAT FISIK DAN MEKANIK PAPAN KOMPOSIT DARI LIMBAH PELEPAH SAWIT DAN SABUT KELAPA Erwan, Erwan; Faryuni, Irfana Diah; Wahyuni, Dwiria
PRISMA FISIKA Vol 3, No 3 (2015)
Publisher : Jurusan Fisika, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (339.589 KB) | DOI: 10.26418/pf.v3i3.13893

Abstract

Telah dilakukan sintesis papan komposit dari pelepah sawit dan sabut kelapa menggunakan perekat urea formaldehide (UF), parafin dan katalis. Penelitian ini bertujuan untuk menganalisis sifat fisik dan mekanik pada papan komposit homogen dan berlapis. Variasi komposisi pelepah sawit : sabut kelapa adalah (100:0, 90:10, 80:20, 70:30, 60:40, 50:50, 40:60, 30:70, 20:80, 10:90, 0:100)% dengan nama sampel berturut-turut adalah A, B, C, D, E, F, G, H, I, J dan K. Penelitian diawali dengan pencampuran bahan dengan perekat, kemudian bahan dikempa dengan tekanan 30 kg/cm2 pada suhu 150°C selama 8 menit. Hasil uji sifat fisis dan mekanis papan komposit mengacu pada standar JIS A 5908-2003. Semua sampel memenuhi standar untuk kerapatan dan kadar air masing-masing dengan rentang nilai 650,2 - 765,3 kg/m3, dan 5,6 - 11,3 %. Empat sampel yang memenuhi standar untuk internal bonding yaitu sampel A, B, C, dan D dengan nilai pada rentang 14,8 x 104 N/m2 - 32,9 x 104 N/m2. Sedangkan untuk uji kuat pegang sekrup dan keteguhan patah, semua sampel memenuhi standar masing-masing rentang nilai 332,2 - 896,7 N, dan 1,03 x 107 - 2,02 x 107 N/m2. Hasil uji pengembangan tebal dan keteguhan elastisitas semua sampel tidak memenuhi standar yang telah ditetapkan.   Kata kunci : pelepah sawit, sabut kelapa, urea formaldehyde, dan papan komposit.
Unjuk Kinerja Alat Pasteurisasi pada Proses Pasteurisasi Madu: Studi Kasus PT Kembang Joyo Sriwijaya Wibowo, Sasongko Aji; Lastriyanto, Anang; Erwan, Erwan; Jaya, Firman; Batoro, Jati
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 2, No 2 (2021): April
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v2i2.10835

Abstract

One of the post-harvest honey processing processes is the pasteurization process. Pasteurization is the initial stage of honey processing before evaporation. The high demand for honey in Indonesia requires that honey producing companies must use pasteurization tools with large capacities and do not damage the honey content. Honey will be damaged if the pasteurization temperature is more than 70oC. In addition, the pasteurization process is also still a problem in the honey industry. Therefore it is necessary to make pasteurization tools with automatic and fast temperature control in the pasteurization process. The purpose of this study was to observe the rate of heat penetration into pasteurized honey material and the amount of honey weight pasteurized, then also measured changes in water content, viscosity, degree Brix, and density of density. From the results of measurements of heat penetration rates in pasteurization and conventional pasteurization devices, the difference in time duration on stoves 1, 2, and 3 to increase the initial temperature of 35 oC to 65oC respectively were 45, 45, and 42 minutes with a total of 101 honey, 22 kg while in conventional equipment takes 50 minutes to heat honey as much as 46,780 kg. Gas consumption on stove 1 was 0.291 g/(kgoC), stove 2 was 0.281 g/(kgoC), stove 3 was 0.285 g / (kgoC), whereas gas consumption on conventional stove was 0.272 g/(kgoC). The results of measurements of water content, viscosity, Brix, and density of density before and after pasteurization were as follows 21.99%, 4.835 poise, 63 obrix, 1.356 kg/m3, and 19.82%, 5.453 poise, 64 obrix, 1.358 kg/m3.
CEO’S GENDER AND EARNINGS MANAGEMENT Debbianita, Debbianita; Prayogo, Enny; Agustina, Lidya; Erwan, Erwan

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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (74.747 KB) | DOI: 10.31955/mea.v5i2.1077

Abstract

The aim of this study is to see how the gender of CEO affects earnings management in manufacturing companies that were listed on Indonesia Stock Exchange in 2018. Explanatory analysis was used in this study, and judgment sampling method was used to determine the sample size. The research hypothesis was checked with SPSS version 20 and the result shows that The gender of the CEO has no effect on earnings management.
Analisis Kepuasan Pelanggan Terhadap Keputusan Pembelian Beras Berlabel Erwan, Erwan; Untari, Untari; Widyantari, Ineke Nursih
MuJAgri: Musamus Journal of Agribusiness Vol 3 No 2 (2021): MuJAgri: Musamus Journal of Agribusiness
Publisher : Musamus University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/mujagri.v3i2.3766

Abstract

This research aims to : 1) know the influence of simultaneous (shared) between the variable of customer satisfaction toward the purchasing decisions, 2) know whether the customer satisfaction are the variables that influence the purchase decision of partially, 3) know the variable of customer satisfaction dominated of the rice purchases labeled. This research was conducted in Toko Dua departement store for five months, from May to September 2013. Analysis used are Linear Regression Multiple, accidental sampling method based on the total sample are 66 respondents.The results showed that the results of the test simultaneous (F) indicating that Fcount (2,824) > Ftable (2,37); so it is concluded the variable of costumer satisfaction simultaneously and significant to affect of the decision to buy. Partial assay results test (t) indicating that variable, among five namely the quality of the product the prices of emotional factors and charges; that significantly affect customers in a decision to buy rice labeled is variable fee; it showed that t count (2,698) > t table (1,669). The results of the test determinan (R) indicating that variable of customer satisfaction having value domination 19,1 % of the decision of the purchase, the remaining 80,9 % influenced by other factors outside of a operation variable. Keywords: customer satisfaction, purchasing decisions, labeled
Moisture Reduction of Honey in Dehumidification and Evaporation Processes Lastriyanto, Anang; Wibowo, Sasongko Aji; Erwan, Erwan; Jaya, Firman; Batoro, Jati; Masyithoh, Dewi; Lamerkabel, JSA
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 4, No 2 (2020)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v4i22020p153

Abstract

The high water content of honey can lead to fermentation and accelerate the deterioration of honey. One way to prevent fermentation in honey is to reduce the water content of honey. There are several ways to reduce the water content of honey, namely through a dehumidifier and evaporation. This study aimed to examine the relationship of reduced water content towards time in between dehumidifier and evaporation processes. The research method uses an exponential equation model to determine the value of the constant (K). The constant value (K) is used to predict the rate of reduction in moisture content between the dehumidifier and evaporation processes. The results showed that the water content value after the dehumidifier and evaporation process had met the International Standard (SI) with a moisture content value of less than 19 %. The initial moisture content of honey before processing was 21.335 %, then after going through the process, the moisture content of honey in the dehumidifier and evaporation processes were 16.397 % and 14.625 %, respectively. The processing time required for decreasing the water content of honey in between dehumidification and evaporation processes also shows a very significantly difference; In the dehumidifier process, the process takes 720 min. While in the evaporation process, it is 50 min. The exponential equation to determine the constant value of K (1/min.) for the dehumidifier is y = 21.262e-0.00037x with the value of regression R2 = 0.9943. While the exponential equation formula to determine the constant value of K (1/min.) in the evaporation process is y = 21.961e-0.007x with the regression value represent R2 = 0.9262
Tempat Persarangan Lebah Hutan (Apis dorsata F.) di Pulau Sermata Lamerkabel, Jacobus S. A.; Masauna, Esther D; Utuwaly, Imas D; Jaya, Firman; Lastriyanto, Anang; Yunus, Mochammad; Batoro, Jati; Erwan, Erwan; Masyithoh, Dewi; Ustadi, Ustadi
JURNAL PERTANIAN KEPULAUAN Vol 8 No 1 (2024): Jurnal Pertanian Kepulauan
Publisher : Fakultas Pertanian, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jpk.2024.8.1.1

Abstract

The aim of the study was to determine the nesting sites of Apis dorsata (F) forest bees. the method used in this research was a descriptive survey. The results showed that trees and rock cliffs are nesting sites for forest bees on the island of Sermata. The Banyan tree is a tree that is preferred as a nesting place for forest bees (4 trees) in addition to Mango trees (2 trees), Salawaku (2 trees) , Kemiri (1 tree) , and Parna (1 tree). The height of the nesting places of forest bee colonies on trees and rock cliffs from the ground is at an altitude of 2.82 m to 27.40 m. The mango tree is the lowest forest bee nesting tree, while the highest is found in the banyan tree (20.51 m) and rock cliff 27.40 m. The habitat for the most forest bee colonies was 95 colonies in the range > 0-100 masl and 20 colonies in the range > 100-200 masl. The number of forest bee nests found in the locations of the villages of Regoha, Rotnama, Lelang, and Elo was 115 colony nests.
Pengaruh Dosis Inokulum dan Lama Fermentasi Eceng Gondok dengan Neurospora Crassa Sebagai Bahan Pakan Sumber Energi Maslami, Vebera; Purnamasari, Dwi Kusuma; Wiryawan, K. G.; Erwan, Erwan; Syamsuhaidi, Syamsuhaidi; Noersidiq, Azhary; Fahrullah, Fahrullah; Hidayah, Hidayatul
Jurnal Peternakan Indonesia (Indonesian Journal of Animal Science) Vol 26, No 3 (2024): Jurnal Peternakan Indonesia
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpi.26.3.138-146.2024

Abstract

Eceng gondok (Eichhornia crassipes) adalah tanaman air yang melimpah namun sering dianggap sebagai gulma dan potensi sebagai pakan alternatif untuk unggas karena kandungan nutrisinya yang baik.Namun, tingginya kandungan serat kasar menjadi kendala utama dalam pemanfaatannya. Penelitian ini bertujuan untuk mengetahui pengaruh variasi dosis inokulum dan lama inkubasi terhadap kandungan energi, bahan organik (BO) dan pH eceng gondok yang difermentasi menggunakan Neurospora crassa. Penelitian ini menggunakan rancangan acak lengkap pola faktorial dengan variasi dosis inokulum (1%, 2%, 3%) dan lama inkubasi (5 dan 7 hari). Hasil penelitian menunjukkan bahwa fermentasi eceng gondok pada dosis 1% dan lama fermentasi 7 hari  dapat menurunkan kandungan serat kasar. Kesimpulan dari penelitan ini adalah dosis inokulum 1% dengan lama fermentasi 5 hari dapat menurunkan kandungan  serat kasar 23,57%, dengan kandungan energi 3753,38 Kkal/kg, kandungan bahan organik 89,77% dan pH 7,47.
Sosialisasi Game Edukasi Virtual Quiz Berbasis Mediapipe untuk Sekolah Dasar Nur Budiman, Saiful; Sri Lestanti; Erwan, Erwan
Kontibusi: Jurnal Kontribusi Kepada Masyarakat Vol 4 No 1 (2024): July, Science Contribution to Society Journal
Publisher : Universitas Islam Balitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/scs.v4i1.3685

Abstract

Virtual educational game quiz using Mediapipe is one of the innovative and exciting learning methods for 3rd grade elementary schoolchildren at SDN Wonorejo Talun Blitar. This game was created with the aim to help improve children's understanding and knowledge in a variety of subjects in an interactive and fun way. In this game, children will be asked to answer the questions given through video and voice displays using Mediapipe technology. They can answer questions by moving their bodies or showing answers through specific gestures. This will provide a more interactive and educational learning experience for children, so that they can more easily understand the lesson submitted. Besides, virtual educational quiz games can also help improve children's concentration and focus in learning. With a fun and exciting way of playing, children will be more motivated to learn and follow every question well. They will also learn to collaborate and communicate with their friends in search of the right answers. Through these games, children are expected to be able to learn more effectively and efficiently, as well as improve their academic scores at school. They will also become more skilled in using technology and understand lesson concepts better. Thus, a virtual educational quiz game using Mediapipe can be one of the effective and innovative learning methods for 3rd grade elementary schoolchildren at SDN Wonorejo Talun Blitar. For the outdoors proposed by the executive team are publications of scientific journals and virtual games quizzes.