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All Journal ISTORIA INFORMASI Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Harmoni Sosial: Jurnal Pendidikan IPS Diakronika Jantra Journal of Social Studies (JSS) Unri Conference Series: Community Engagement Media Didaktika

Aman aman

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Author-ID : 481409

Arts Humanities Education Engineering Languange, Linguistic, Communication & Media Library & Information Science Mathematics Social Sciences Other

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KIPRAH AMIR SYARIFFUDIN DALAM POLITIK DAN PEMERINTAHAN SAMPAI TAHUN 1948 Aman Aman; Zulkarnain Zulkarnain; Wahyu Ragil
ISTORIA: Jurnal Pendidikan dan Sejarah Vol 11, No 1 (2015): ISTORIA Edisi Maret 2015, Vol. 11, No.1
Publisher : Universitas Negeri Yogyakarta

Penelitian ini bertujuan untuk mengetahui kiprah politik Amir Syariffudin pada pemerintahan dan setelah berakhirnya pemerintahanya 1945-1948. Metode yang digunakan peneliti dalam penulisan sejarah ini adalah metode penelitian menurut Kuntowijoyo. Adapun tahapan penelitian sejarah menurut Kuntowijoyo mempunyai lima tahap yaitu pemilihan topik, heuristik, verifikasi, interpretasi, dan penulisan. Hasil penelitian menunjukkan bahwa Amir Syariffudin memiliki peran yang sangat besar bagi Republik Indonesia. Ia memiliki andil yang besar dalam dinamika pemerintahan Republik Indonesia. Sebagai seorang nasionalis, ia pernah menduduki berbagai jabatan penting. Adapun jabatan penting tersebut antara lain: sebagai menteri penerangan, menteri keamanan, perdana menteri, dan wakil Indonesia dalam Perjanjian Renville. Kata Kunci: Amir Syariffudin, peran, politik, dan pemerintahan.

DI SEPUTAR SEJARAH DAN PENDIDIKAN SEJARAH Aman aman
Informasi Vol 37, No 1 (2011): INFORMASI
Publisher : Universitas Negeri Yogyakarta

Sejarah adalah sebuah proses interaksi tanpa henti antara sejarawan dan fakta-faktanya, dan dialog yang tak berujung antara masa lampau, masa sekarang, dan masa yang akan dating. Sejarah merupakan suatu diakronisme yang tidak pernah selesai selama manusia masih menyejarah. Sejarah tidak pernah final, mati, dan tertutup, melainkan berkesinambungan. Oleh karena itu, sejarawan dan sejarah merupakan kesatuan yang utuh untuk menjadikan sejarah bernuansa. Sejarawan tanpa fakta tidak dapat berbuat apa-apa, dan fakta tanpa sejarawan juga tidak akan pernah hidup. Kaitannya dengan pendidikan, sejarah tidak akan berguna tanpa dijadikan pendidikan. Karena sejarah merekam kesadaran dari masa silam, merangsang perbuatan nyata pada masa kini, dan membangkitkan apresiasi untuk masa depan. Hanya melalui upaya memproyeksikan peristiwa masa lampau ke masa kini baru akan dapat berbicara tentang makna edukatif sejarah yang sesungguhnya. Dalam kemasakinianlah masa lampau itu benar-benar masa lampau yang penuh makna, the meaningful of past, dan bukan masa lampau yang mati dan final, the final and dead of past. Oleh karena itu, urgensi dari pendidikan sejarah tidak diragukan lagi. Karena Collingwood pun mengatakan “...knowing your self means knowing that you can do; and since nobody knows what he can do until he tries, the only clue to what man can do is what man has done. The value of history then, is that it teachs us what man has done and then what man”. Kata kunci: sejarah, pembelajaran sejarah, dan pendidikan.

Pengaruh Parameter Rasio Liquid-Solid, Suhu Dan Lama Perawatan Terhadap Kuat Tekan Paving Blok Geopolimer Thomson Simanjuntak; Aman Aman; Ahmad Fadli
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Fly ash as a substitute for cement shows potential waste utilization. The objective of the research is to find the optimum parameter to produce geopolymer. Use of fly ash type F from Paiton Probolingo power plant, fine aggregate of sand,NaOH 14M and Na2SiO3 solution. The liquid activator/solid (fly ash) ratio varies 0.3; 0.5 and 0.7 and treatment temperature variations from room temperature (30), 60, 80 and 100 oC and curing time of 3, 7, 14 and 28 days. The modulus activator ratio of Na2SiO3 / NaOH is 2 and the ratio of fly ash to aggregate is 1: 3. Compressive strength obtained 314.20 kg/cm2 at optimum ratio of liquid/solid 0.5 and curing at 80 oC and 28 days.Keywords: Fly ash; Geopolymer; Paving block; Compressive Strength; Modulus.

Pengaruh Jumlah Penambahan Graphene Nanosheets (GNSs) Dan Gliserol Terhadap Sifat Mekanis Coating Komposit Berbasis Polyvinyl Alcohol (PVA) Abdul Rasyid Amrin; Amun Amri; Aman Aman
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Polyvinyl alcohol (PVA) based conductive coatings composite wih the addition of graphene nanosheets (GNSs) have been successfully synthesized. Composites were synthesized using the solution mixing method and were tested their conductive properties, mechanical properties (tensile strength, elongation at break, and young modulus), morphology, and functional group analysis. The results showed that the addition of graphene increased the electrical conductivity, tensile strength, and Young modulus, but decreased elongation at break composite coating. Addition of glycerol increased elongation at break, but decreased the electrical conductivity, tensile strength, and Young modulus. The highest electrical conductivity was 1.11 x 10-3 s/m obtained by adding 3% graphene, the highest tensile strength was 25,894 MPa obtained by adding 3% graphene, the highest elongation was 250.862% obtained by adding 2%wt glycerol, and the highest modulus young was 18,496 MPa obtained by adding 3% graphene. Based on the results of the study, the PVA-based conductive composite coating with the addition of graphene nanosheets has a good perspective to develop further. Keywords: coating composite, glycerol, graphene, PVA

Pengaruh Suhu Sintering Pada Pembuatan Prototipe Replika Tulang Berbasis Hidroksiapatit Dengan Metode Starch Consolidation Adi Mulyadi Putra; Aman Aman; Ahmad Fadli
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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3D bone replica based on porous Hydroxyapatite (HA) is a candidate bone implant material that has similarities to the original bone. Starch consolidation is one of the methods for making HA scaffold The purpose of this research are to determine the effect of sintering temperature on porous HA characteristics. This research was conducted by mixing 20 grams of HA with 8 grams of sago starch and 25 ml of distilled water to form slurry. The slurry formed was then stirred at 400 rpm. The mixture was then put into a mold. Then the mixture in the mold was heated to 100oC for 60 minutes. After that, the green bodies are removed from the mould and dried in an oven at 80°C for 24 hours and 110°C for 8 hours. The dried sample is then put into the furnace. Combustion is carried out at a temperature of 600˚C and ended with sintering at a temperature of 1250˚C with the increasing rate of sintering temperature at 2°C/minute and holding time for 1 hour. The higher the sintering temperature causing the density, shrinkage and bending stress to be greather. Sintered bodies show density in the range of 2.52-2,56 gr/cm3, shrinkage 35.87–39.47% and bending stress 4,026.49 MPa. Keywords: bending stress; bone replica; hydroxypatite; sintering

Pembuatan Geopolimer Ringan Berbasis Fly Ash Batubara Dengan Penambahan Styrofoam Nurwulandari Saputri; Amun Amri; Aman Aman
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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This study aims to make coal fly ash based light geopolymers with the addition of styrofoam as a lightweight aggregate. The light geopolymers was prepared by mixing the coal fly ash and high concentration of alkaline activator solution, with styrofoam. The mixture was then molded and formed to the geopolymers mortar and cured at temperature of 25℃ for 28 days. The results indicated that the addition of styrofoam decreased the compressive strength and density of geopolymer mortar. The highest compressive strength was obtained from sample with the addition of 1.5% -wt styrofoam and the size of 1 > x ≤ 5 mm styrofoam, which 8.8 MPa. The mechanical properties of geopolymer mortar were affected by the amount of styrofoam added and the size distribution of styrofoam in the geopolymer matrix. Keywords : alkali activators, geopolymer, styrofoam

Pengaruh Penambahan Grafena Dan Waktu Kalsinasi Terhadap Karakteristik Batu Bata Puji Rahmawati Dwi Sukma; Amun Amri; Aman Aman
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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This study aims to produce bricks with the addition of few layers graphene (FLG) and to study the effects of graphene addition and calcination time to the characteristics of the bricks produced. The brick-graphene composites synthesis was started from the manufacture of FLG using the turbulence-assisted shear exfoliation (TASE) method. The graphene was then added to the prepared clay, and formed size 5x5x5 cm3 and dried at room temperature for a week. Then the bricks were calcined with variations of 1-5 hours, and the addition of graphene 5-15%wt in furnace at temperature of 800ºC. The mechanical properties of bricks were obtained from compressive strength and porosity tests. With the addition of graphene and the length of time calcination increased the compressive strength and decreases the porosity in bricks. The results showed that the highest compressive strength (6 MPa) was exhibited by sample with the addition of 15% wt graphene and 5 hours calcination time. The lowest porosity (8%) was showed by sample with the addition of 15% wt graphene and 5-hours calcination time. The structure and morphology of graphene were characterized with the fourier transform infrared spectrophotometer (FTIR) and scanning electron microscopy (SEM), while the crystal size of graphene was probed using the diffraction x-ray (X-RD). The XRD test showed the crystal size FLG of 25.5nm, while the SEM results show that graphene was evenly diffused.Keywords : additives, graphene, clay, compressive strength, porosity

Pirolisis Biomassa Pelepah Sawit Menjadi Bio - Oil Dengan Katalis Natural Zeolit Dealuminated (NZA) Rajib Azri; Syaiful Bahri; Aman Aman
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Petroleum as a primary energy source at this time, increasingly limited supply. Beside the population growth will lead to the increasing need for petroleum. To overcome these problems needed alternative energy sources that can be updated is one of the bio-oil. Bio-oil produced by pyrolysis process using biomass with warming, in the absence of oxygen. The purpose of this study was to determine the effect of variations in the catalyst on the yield of bio-oil produced, knowing the value of density, viscosity, acid number and flash point of bio-oil as well as knowing the chemical components of the bio-oil by GC-MS method. Pyrolysis uses palm frond as much as 50 grams along with 500 ml silinap with NZA catalysts variation of 0%, 1%, 2%, 3%, and 4% w / w with a stirring speed of 300 rpm and a temperature of 320 º C for 120 minutes. In this penelitiam largest yield obtained on the catalyst NZA 3% variation of 44.4%. Characteristics of physical properties obtained are: density of 0.996 g / ml, 11.733 cSt viscosity, acid number 79.34 g NaOH / g sample, as well as the flash point 58 º C. The results of GC-MS analysis, the dominant chemical components in bio-oil are acetic acid (40.90%); methanol (9.60%); methyl ester (2.30%); phenol (32.88%); 2-furancarboxaldehyde (8.98%).Keywords : Bio-oil, Pyrolysis, NZA, Palm Frond

PENINGKATAN HASIL BELAJAR IPS MELALUI IMPLEMENTASI CTL METODE GI BERBANTUAN MEDIA SMP NEGERI 6 RAHA Jamrut Jamrut; Aman Aman
Harmoni Sosial: Jurnal Pendidikan IPS Vol 1, No 2 (2014): September
Publisher : Program Pascasarjana Universitas Negeri Yogyakarta

Penelitian ini bertujuan untuk (1) mengimplementasikan CTL dengan metode GI berbantuan media, (2) meningkatkan hasil belajar IPS. Subjek penelitian adalah 30 siswa kelas VIII-1 SMP Neg 6 Raha tahun pelajaran 2013/2014.Teknik pengumpulan data yang digunakan adalah observasi, tes, dan dokumentasi. Analisis data yang digunakan adalah deskriptif komparatif dengan nilai rata-rata untuk membandingkan kemajuan antar siklus. Hasil penelitian ini menunjukan bahwa implementasi CTL dengan metode GI berbantuan media meningkatan hasil belajar kognitif. Pada siklus I sebesar 69,33 atau mengalami ketuntasan belajar sebesar 60%, menjadi 78,86 atau mengalami ketuntasan belajar sebesar 90% pada siklus II.Kata Kunci : CTL, group investigation, media pembelajaran, hasil belajar

PENINGKATAN AKTIVITAS DAN HASIL BELAJAR IPS MELALUI IMPLEMENTASI STRATEGI PETA KONSEP DI SMP MUHAMMADIYAH 3 DEPOK Wiwik Hendriani; Aman Aman
Harmoni Sosial: Jurnal Pendidikan IPS Vol 1, No 1 (2014): March
Publisher : Program Pascasarjana Universitas Negeri Yogyakarta

Tujuan penelitian ini adalah untuk 1) mendiskripsikan implementasi strategi peta konsep untuk meningkatkan aktivitas dan hasil belajar IPS peserta didik, 2) meningkatkan aktivitas dan hasil belajar IPS peserta didik melalui implementasi strategi peta konsep, dan 3) mengetahui kendala-kendala dan cara mengatasi kendala yang dihadapi dalam meningkatkan aktivitas dan hasil belajar peserta didik dalam pembelajaran IPS . Penelitian tindakan kelas ini diimplementasikan pada peserta didik kelas VIII D SMP Muhammadiyah 3 Depok Sleman karena terindikasi bahwa aktivitas dan hasil belajar peserta didik pada pembelajaran IPS masih rendah. Teknik pengumpulan data yang digunakan berupa observasi, wawancara, tes dan dokumentasi. Aktivitas peserta didik mengalami peningkatan yaitu dari rerata keseluruhan 3,39 atau senilai 67,8 pada siklus I menjadi 3,48 yaitu senilai 70 pada siklus II yaitu klasifikasi cukup menjadi baik. Hasil belajar peserta didik yang mencapai nilai KKM pada siklus I sebanyak 14 orang yaitu sekitar 43,75 % dan meningkat pada siklus II menjadi 28 orang dengan persentase 85%. Kendala-kendala yang dihadapi ini adalah masih lemahnya manajemen waktu dari peneliti dalam proses pembelajaran serta penilaian terhadap aktivitas peserta didik karena terbatasnya pengamatan terhadap mereka dan kadang bersifat subjekif. Upaya mengatasi kendala yang dihadapi dengan pengalokasian waktu yang ketat dalam proses pembelajaran dan penilaian aktivitas peserta didik dapat dilakukan dengan penilaian antar mereka.Kata kunci: aktivitas, hasil belajar, strategi peta konsep

Co-Authors Abdul Rasyid Amrin Adelina Samosir Adi Mulyadi Putra Ahmad Fadli Ajat Sudrajat Amun Amri Ari Aditia Sukma Arrazaq, Naufal Raffi Jamrut Jamrut Kholid Irsani Lia Yuliana Nurwulandari Saputri Puji Rahmawati Dwi Sukma Rajib Azri Saefur Rochmat SYAIFUL BAHRI Thomson Simanjuntak Wahyu Ragil Wiwik Hendriani Zulkarnain Zulkarnain

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