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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Indonesian Journal of Geography Katalogis JURNAL KIMIA SAINS DAN APLIKASI Proceedings of Annual International Conference Syiah Kuala University - Social Sciences Chapter Paduraksa: Jurnal Teknik Sipil Universitas Warmadewa Jurnal Sains dan Terapan Kimia Warta Rimba TECHNO COM TABULARASA Widyagogik : Jurnal Pendidikan dan Pembelajaran Sekolah Dasar INDONESIAN JOURNAL OF WETLANDS ENVIRONMENTAL MANAGEMENT LingTera Jurnal Pamator : Jurnal Ilmiah Universitas Trunojoyo Madura Jurnal Agritech POROS TEKNIK Jurnal Ilmiah Pangabdhi INFO-TEKNIK Jurnal Ilmiah Mahasiswa Pendidikan Guru Sekolah Dasar Jurnal Pendidikan Biologi Risâlah, Jurnal Pendidikan dan Studi Islam EnviroScienteae Jukung (Jurnal Teknik Lingkungan) PEDAGOGIA Jurnal Pendidikan Kimia (JPKim) Biosaintifika: Journal of Biology & Biology Education Al Qalam: Jurnal Ilmiah Keagamaan dan Kemasyarakatan Bioedukasi: Jurnal Pendidikan Biologi AKMEN Jurnal Ilmiah JURNAL PENDIDIKAN TAMBUSAI Academic Journal Perspective : Education, Language, and Literature Research and Innovation in Language Learning JURNAL DUNIA KESMAS JUPE : Jurnal Pendidikan Mandala Ruhama : Islamic Education Journal TROPICAL WETLAND JOURNAL Jurnal Ilmiah Membangun Desa dan Pertanian Viabel : Jurnal Ilmiah Ilmu-Ilmu Pertanian Jurnal Abdi Masyarakat Dinasti International Journal of Management Science Jurnal Kependidikan: Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran dan Pembelajaran JPP (Jurnal Pendidikan dan Pembelajaran) Abdimasku : Jurnal Pengabdian Masyarakat Jurnal Tarbiyah Al-Awlad
Articles

PENYISIHAN BAHAN ORGANIK ALAMI PADA DESALINASI AIR RAWA ASIN MENGGUNAKAN PROSES KOAGULASI-PERVAPORASI Rahma, Aulia; Elma, Muthia; Mahmud, Mahmud; Irawan, Chairul; Pratiwi, Amalia Enggar; Rampun, Erdina Lulu Atika
Jurnal Kimia Sains dan Aplikasi Vol 22, No 3 (2019): Volume 22 Issue 3 Year 2019
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3199.527 KB) | DOI: 10.14710/jksa.22.3.85-92

Abstract

Kandungan bahan organik alami dalam air yang tinggi menyebabkan air rawa berwarna coklat dan tidak layak untuk digunakan. Selain itu, intrusi air laut yang terjadi saat pasang maksimum ke dalam aquifer rawa menyebabkan air rawa menjadi asin yang disebut sebagai air rawa asin. Koagulasi merupakan salah satu metode yang efektif digunakan untuk menyisihkan kandungan bahan organik. Namun, metode tersebut tidak mampu menyisihkan salinitas pada air rawa asin. Oleh karena itu, kombinasi proses koagulasi dan pervaporasi merupakan metode yang menjanjikan untuk digunakan dalam mereduksi baik parameter bahan organik (UV254) maupun salinitas (konduktivitas) pada air rawa asin. Tujuan dari penelitian ini adalah untuk menginvestigasi dosis optimum koagulan untuk menyisihkan UV254 pada proses koagulasi sebagai pra-perlakuan pervaporasi dan untuk menganalisis performa koagulasi-pervaporasi membran silika-pektin untuk mereduksi bahan organik dan salinitas air rawa asin. Koagulan yang digunakan pada proses koagulasi ini adalah aluminium sulfat dengan variasi dosis 10-60 mg L-1. Proses pervaporasi menggunakan membran yang terbuat dari silika-pektin pada suhu umpan operasi ~25°C (suhu ruang). Kondisi optimum pra-perlakuan koagulasi didapatkan pada dosis alum 30 mg L-1 dengan efisiensi penyisihan tertinggi sebesar 81,8% (UV254) dan 5,4% (konduktivitas). Kombinasi koagulasi-pervaporasi membran silika-pektin menunjukkan nilai rejeksi yang sangat tinggi yaitu 99,9% (NaCl) dan 88,8% (UV254). Selain itu pervaporasi membran silika-pektin menghasilkan water flux 17,7% lebih tinggi daripada water flux umpan air rawa asin tanpa pra-perlakuan koagulasi yaitu 5,4 kg.m-2.h-1. Kombinasi proses koagulasi dan pervaporasi membran silika-pektin dalam penelitian ini efektif untuk menyisihkan parameter UV254 dan NaCl air rawa asin hanya dengan operasi pada suhu ruang.
PENGARUH KONSENTRASI KITOSAN TERHADAP KARAKTER MEMBRAN KITOSAN Rohman, Taufiqur; Lili Utami, Umi Baroroh; Mahmud, Mahmud
Jurnal Sains dan Terapan Kimia Vol 3, No 1 (2009)
Publisher : Jurnal Sains dan Terapan Kimia

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Abstract

Telah dilakukan penelitian tentang pengaruh konsentrasi kitosan terhadap karaktermembran kitosan. Penelitian ini bertujuan untuk mengkaji pengaruh konsentrasi kitosanterhadap permeabilitas, permselektivitas, dan modulus Young. Penelitian juga bertujuanuntuk mengetahui nilai Molecular Weight Cut-Off (MWCO) dan morfologi membrankitosan. Pembuatan larutan cetak membran digunakan dua komponen yaitu kitosansebagai polimer, dan asam asetat sebagai pelarut. Sintesis membran kitosan dilakukandengan teknik inversi fasa, yaitu dengan proses rendam endap. Pada larutan dope,digunakan kitosan dengan variasi konsentrasi 2%, 3%, 4%, 5% dan 6% (b/b).Karakterisasi membran meliputi uji permeabilitas, permselektivitas, MWCO, modulusYoung, dan analisis morfologi dengan Scanning Electron Microscope (SEM). Hasilpenelitian menunjukkan bahwa permeabilitas tertinggi dimiliki membran dengankonsentrasi larutan cetak 2% (b/b), sedangkan permselektivitas tertinggi dengankonsentrasi larutan cetak 6% (b/b), untuk nilai Molecular Weight Cut-Off nya adalah 50%,dan modulus Young tertinggi diperoleh dengan konsentrasi larutan cetak 2% (b/b).Analisis morfologi membran menunjukkan bahwa konsentrasi larutan cetak 5% (b/b)merupakan komposisi terbaik menghasilkan struktur membran dengan perbesaran poriyang teratur.Kata kunci : membran kitosan, permeabilitas, permselektifitas, MWCO, morfologi
PENGEMBANGAN BUKU AJAR KIMIA SMA/MA KELAS XI SEMESTER II DALAM UPAYA MENINGKATKAN HASIL BELAJAR DAN MENUMBUHKEMBANGKAN KARAKTER SISWA Mahmud, Mahmud; Sudrajat, Ajat; Napitupulu, Shofia Rija
JURNAL PENDIDIKAN KIMIA (JPKim) Vol 7, No 1 (2015): April 2015
Publisher : JURNAL PENDIDIKAN KIMIA (JPKim)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpkim.v7i1.5502

Abstract

AbstractThis study aims to develop of chemistry textbooks that used in Eleventh Grade of Senior high school of second semester based on 2013 curriculum to improve students’ achievement and develop students’ character. The samples of this study are SMAN 1 Lubuk Pakam, SMAN 2 Lubuk Pakam, Nusantara Senior High School, MAN Lubuk Pakam. The sample treatment is divided into two, experimental class and control class. The Data collection is done with objective tests, observation sheets during the learning process is done as well as a questionnaire to measure the evolving character at the end of learning. Data were analyzed using SPSS 19 with significance level 0.05. To determine difference in students’ achievement and students’ character by using Cooperative problem Based Learning. The effectiveness score of textbooks quality was 84.37 and KTSP textbook was 74.41. In addition, this research improves students’ achievement and character such as responsibility, creative, communicative and psychomotor. The students’gain achievement of the experiment class was 74.92 and the control class was 67.11. The effectiveness score of communicative character in experiments class was 78,08 and the controll class was 74.26, the creative character in experiment class was 78.28 and the controll class was 75.12, and the responsibility character in experiment class was 79.51 and the controll class was 75.30. The results of this study of indicate that the chemistry textbook was develop in this study can to to improve students’ Achievement and develop students’ character.Kata Kunci : Buku Ajar Kimia, Cooperative Problem Based Learning, Hasil Belajar, Tanggung Jawab, Kreativitas, Komunikatif, Psikomotorik
THE EFFECTIVENESS OF MINI RESEARCH APPLICATION ON CONTEXTUAL LEARNING BASED FOR STUDENTS’ ATTITUDE AT MICROBIOLOGY SUBJECT Hasruddin, Hasruddin; Harahap, Fauziyah; Mahmud, Mahmud
Proceedings of AICS - Social Sciences Vol 7 (2017): 7th AIC in conjuction ICMR 2017 Universitas Syiah Kuala October 2017
Publisher : Proceedings of AICS - Social Sciences

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Abstract

The objective of this study was to find out the effect of mini research application on contextual learning based for students? attitude at microbiology subject in State University of Medan. A quasi experimental research with pretest-posttest control group design was used in this study. The population of this study was 6th semester students of biology department and 2 classes chosen as the sample by applying cluster random sampling technique. Experimental class was using mini research application on contextual learning based while control class was using direct learning. The instrument used to obtain the data of students? attitude was description questionnaire. The data were analysed by using Mann-Whitney U-Test with used Statistical Package for Social Science (SPSS) 22. The score of attitude were significantly from two classes, that U =78.64, n1 = 35, n2 = 34, p = 0.05, and z = 6.327 1.96 means the null hypothesis was rejected, suggesting that there is an effect of mini research application on contextual learning based for students? attitude. Therefore, it can be stated that mini research application on contextual learning based as a more effective for students? attitude in State University of Medan
PURWARUPA PEMBELAJARAN MANDIRI SISTEM APLIKASI AKUNTANSI UMKM BERBASIS WEB DALAM PEMBERDAYAAN USAHA MASYARAKAT JAWA TENGAH Lestiawan, Heru; Mahmud, Mahmud
Techno.Com Vol 14, No 1 (2015): Februari 2015 (Hal. 1-78)
Publisher : LPPM Universitas Dian Nuswantoro

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Abstract

Permasalahan mendasar dari pengelola UMKM adalah lemahnya pengetahuan tentang akuntansi dan pembuatan format laporan keuangan yang akuntabel. Selain itu salah satu kendala pelayanan di Balai Pelatihan Koperasi dan UMKM propinsi Jawa Tengah adalah waktu diklat yang membutuhkan waktu selama satu minggu sedangkan pelaku UMKM harus meninggalkan usahanya dan ini akan berdampak pada proses usahanya. Tujuan penelitian ini adalah merancang bangun purwarupa pembelajaran mandiri sistem aplikasi akuntansi UMKM berbasis web yang mendukung UMKM untuk meningkatkan usaha dan menghasilkan laporan keuangan yang memenuhi standar akuntansi yang dipersyaratkan oleh lembaga keuangan. Pembelajaran Mandiri Sistem Aplikasi Akuntansi berisi pembelajaran akuntansi dan aplikasi akuntansi UMKM yang dapat menyusun laporan keuangan yang akuntabel yang dapat dipelajari berbasis web sehingga dapat diakses kapanpun dalam rangka peningkatan usaha masyarakat Jawa Tengah. Hasil penelitian adalah dibangunnya software purwarupa  pembelajaran mandiri sistem aplikasi akuntansi berbasis web bagi UMKM. Software  pembelajaran mandiri sistem aplikasi akuntansi berbasis web ini, diharapkan memberikan kemudahan UMKM dalam mengelola berbagai sumber daya keuangan di UMKM yang bersangkutan, untuk lebih efektif, efisien, selain itu mempermudah pengendalian dan pembinaan terhadap UMKM Provinsi Jawa Tengah. Kata kunci: UMKM, aplikasi, akuntansi
SCENARIOS OF LAND-USE CHANGE IN PROTECTED FOREST OF WOSI RENDANI MANOKWARI DISTRICT, WEST PAPUA, INDONESIA Mahmud, Mahmud; Wahyudi, Wahyudi; Budirianto, Heru Joko; Nugroho, Bambang
Jurnal Manajemen Hutan Tropika Vol. 23 No. 1 (2017)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Protected forests have drawn international attention.  This research aims to determine scenarios of land-use change in Protected Forest of Wosi Rendani (PFWR).  The study was conducted using land evaluation approach to land unit, determination and alternative land use change, based on the potential and the level of threat for PFWR.  The results showed that PFWR should remain as a protected forest although the total score of forest modeling was 130. This forest serves to protect soil, water, and danger from floods and landslides. This region has springs, caves, and waterfalls, which can be further developed into eco-tourism and environmental services. As a city forest, PFWR makes Manokwari's weather cooler, enhances the quality of air, reduces environmental pollution, and adds catchment areas. As a community forest, PFWR has forest plants, agricultural crops and fruits, in which people are only allowed to take flowers, fruits, and seeds they have planted. As a buffer zone, PFWR serves as a buffer to reduce population pressures on the forest area or village surrounding the area with high interaction by integrating conservation and economic interests of the surrounding community. As cultivation and settlement, PFWR has three settlements, namely Soribo, Kentestar, and Ipingoisi, 4 settlements outside PFWR namely Tanah Merah Indah, Ajoi, Buton, Mako Brimob, as well as plots of land owned by developers such as Bank Arfindo, Lumintu, Irman Jaya, and Suntari. The final scenario of the land use change in PFWR depends on the policy of local and central government.
THE STUDENTS’ PERCEPTION OF THE EFFECTIVENESS OF ENGLISH AND ARABIC TEACHING AND LEARNING AT THE LANGUAGE AND CULTURE CENTER OF STATE INSTITUTE FOR ISLAMIC STUDIES SHEKH NURJATI CIREBON Mahmud, Mahmud; Wiedarti, Pangesti
LingTera Vol 1, No 2: Oktober 2014
Publisher : LingTera

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (325.435 KB)

Abstract

This study aimed to explore the effectiveness of English and Arabic teaching and learning the Language and Culture Center (LCC) at the State Institute for Islamic Studies Shekh Nurjati Cirebon (SIIS SNJ) based on the students’ perception. The study is to find out students’ opinion toward English and Arabic teaching and learning process and provide beneficial information for the teaching system in the LCC. This study used descriptive survey approach. The subjects were the students of English and Arabic intensive program. The data were collected through the questionnaire The results of the study are as follows. First, the teaching quality indicator is categorized as fairly effective. Second, the generic skills indicator is categorized as less effective. Third, students’ motivation indica-tor is categorized as less effective. Fourth, learning resources is categorized as not effective. Fifth, the assessment appropriateness is categorized as fairly effective. Sixth, the students’ workload is catego-rized as less effective. Seventh, the curriculum content is categorized as less effective. Keywords: students’ perception, teaching and learning, effectiveness.
SIFAT FISIK TANAH DI BAWAH TEGAKAN MANGROVE DI DESA TUMPAPA KECAMATAN BALINGGI KABUPATEN PARIGI MOUTONG Mahmud, Mahmud; Wardah, Wardah; Toknok, Bau
Warta Rimba Vol 2, No 1 (2014)
Publisher : Warta Rimba

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Abstract

Mangrove forest grows on transition of land and sea area which plants community grow on salty tolerance. Naturally properties of mangrove soil can be a standard on asessing its potency and productivity. The aim of this research was to investigate the physical properties of mangrove forest soil.The usage of  this research are to enrich knowledge about physical properties of mangrove forest soil and may be as an input on mangrove forest development. This research was conducted in mangrove forest of Tumpapa Village Balinggi District, Parigi Moutong Regency, as long as three months (September up to December 2013) by using descriptive method. Descriptive research is research that intends to create a description of situations or events in the field. The placement of sampling plots purposive sampling methode with one plot in each of mangrove forest zonation. Collected soil samples were analyzed of soil textures, colours, and permeabilities. This research results shown that the soil of zone that anytime flooded has dusty-clayey clay texture, upper layer has gray colour, bottom layer has black colour, and slow permeability; the soil of zone with moderate tide flooded has dusty clay texture, upper layer has black colour, bottom layer has brown colour, and moderate permeability; the soil of zone with high tide flooded has dusty clay texture, upper layer has brown colour, and moderate permeability; and soil of transition area has clay texture, upper layer has brown colour, sub layer has black colour, bottom layer has gray colour,and slow permeability. Keywords : Mangrove forest, physical soil properties, zonation
CUSTOMARY RIGHT COMPENSATION AND FOREST VILLAGES DEVELOPMENT PROGRAMS OF MANGROVE COMPANY AT BINTUNI BAY PAPUA BARAT Wahyudi, Wahyudi; Tokede, Max Jondudago; Mardiyadi, Zulfikar; Tampang, Ana; Mahmud, Mahmud
Jurnal Manajemen Hutan Tropika Vol. 20 No. 3 (2014)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3600.369 KB) | DOI: 10.7226/jtfm.20.3.187

Abstract

Mangrove at Bintuni bay offers various services to indigenous communities from ecology, social, and economic. Mangrove also could be harvested accordingly to optimize contributions to indigenous communities welfares. This paper highlights implementation of customary right compensation (CRC), and Forest Villages Development programs (FVDP) of mangrove company at Bintuni Bay, Papua Barat. Company reports and documents related to CRC and FVDP from 1988 to June 2013 were reviewed and analyzed. Field works were conducted to examine the implementation of both programs at four villages of two districts. Sustained mangrove harvest for chipwood production in Bintuni bay for more than 25 years is the most outstanding achievement of mangrove utilization and management in Indonesia. Huge amount of expenditure have been spent out, and given to indigenous communities through the CRC and FVDP programs, respectively. These cover from economic, social, and environmental related programs, manufactured public facilities, scholarships, and others. However, the indigenous communities are remained poor, and failed of being self-sufficient community. It clearly impresses that the main goals to improve the welfare, prosperity of indigenous people are considerable failed. It is presumably that social culture systems, and subsistence agriculture practices contribute to the failing these programs. Mostly, forest communities in Papua are practicing subsistence agriculture, hunting, heavily relying on their surrounding natural resources, and spending all their cash or money instantly for consumption, not for saving, investments or even productive activities. Therefore, several program could be initiated to improve in achieving the CRC and FVDP missions, such as building capacity, providing counselors and strengthen local community governance, which could accelerate of being self-reliant community.
KONTRIBUSI PEMBELAJARAN PKN DALAM NATION CHARACTER BUILDING PADA SISWA KELAS V SDIT NURUL ISLAM SIDOARJO Anggraini, Erlina; Mahmud, Mahmud
Widyagogik Vol 7, No 1 (2019): WIDYAGOGIK
Publisher : Program Studi Pendidikan Guru Sekolah Dasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2077.505 KB) | DOI: 10.21107/widyagogik.v7i1.6258

Abstract

Penelitian ini bertujuan untuk mengetahui kontribusi pembelajaran PKn dalam nation character building pada siswa kelas V SDIT Nurul Islam. Pada penelitian ini pendekatan yang digunakan yaitu kuantitatif dengan analisis deskriptif. Teknik analisis data yang digunakan yaitu menggunakan analisis korelasi prodact momen dan determinasi. Hasil analisis menunjukkan bahwa pembelajaran PKn yang dilakukan oleh guru kelas V SDIT Nurul Islam memperoleh persentase sebesar 85,47 persen dengan kategori baik. Nation character building yang dimiliki oleh siswa kelas V SDIT Nurul Islam memperoleh persentase sebesar 91,22 persen dengan kategori kuat. Hasil korelasi diperoleh rhitung=0,655 dengan hubungan positif kategori kuat. Uji signifikansi diperoleh thitung=5,347 ttabel= 2,014 diyatakan bahwa ada hubungan yang singnifikan antara pembelajaran PKn dalam nation character building. Hasil determinasi sebesar 42,902 persen Dapat dikatakan bahwa terdapat kontribusi  antara pembelajaran PKn dengan nation character building pada siswa.
Co-Authors Abdul Ghofur Ahmad Kurnain, Ahmad Ajat Sudrajat Akhbar Akhbar AKHMAD RIZALI Ambar Kusumandari Ana Tampang Ayi Darmana, Ayi Badaruddin Mu’min, Badaruddin Bambang Nugroho Banin, Ahmad Bau Toknok Buana, Tjandra Budiana, Haris Budirianto, Heru Joko Chairul Abdi Chairul Irawan Danang Biyatmoko, Danang Darnius, Said Deni Darmawan Dewi Rosalinda, Dewi Eddiyanto Eddiyanto, Eddiyanto Ekasari, Fitri Elsa, Yumia Emmy Sri Mahreda Erlina Anggraini, Erlina Eva Rizka Octiana, Eva Rizka Farah Diena, Nurin Nisa Farich, Ahcmad Fauziyah Harahap Ferry Sobatnu, Ferry Fikri, Miftahul Fitriani, Fathma Forina, Nora Forina, Nora Gunawan Gunawan Hasbiyallah, Hasbiyallah Hasmin Hasmin, Hasmin HasruddiN HasruddiN Hendri Hermawan Adinugraha Henry, Henry Heru Joko Heru Lestiawan Herwati Nani, Herwati Iis Siti Jahro Isram, Mohamad Jamilah Jamilah Jaufillaili, Jaufillaili Lilik Damayanti, Lilik Lilis Suryani M Iqbal Mardianto Mardianto Masyithah, Husuwatul Max Jondudago Tokede Mijani Rahman, Mijani Mila Sartika, Mila Mohammad Edy Nurtamam, Mohammad Edy Mujtahidin, Mujtahidin Mulyadi Mulyadi Mustalifah, Fitri Ria Muthia Elma Napitupulu, Shofia Rija Nunuk Supriyatno Nur baity Nuraeni, Anita Nurin Nisa Farah Diena Pangesti Wiedarti Pratiwi, Amalia Enggar Prayatni Soewondo Rahma, Aulia Rahmah, Dhiyaur Rahmansyah, Wanda Raissa Rosadi, Raissa Ramlan Silaban, Ramlan Rampun, Erdina L.A Rampun, Erdina Lulu Atika Randis Randis, Randis Rd. Indah Nirtha, Rd. Indah Rony Riduan, Rony Rosida, Putri Rusdiansyah, Achmad Sahid Susanto Setiarini, Asri Shofia Lubis, Shofia Sinaga, Grace Eunike Siregar, Erni Juliani Sudarmadji Sudarmadji Suprihanto Notodarmojo Taufiqur Rohman Tri Padmi UMAN SUHERMAN, UMAN Umi Baroroh Lili Utami Wahyudi Wahyudi Wardah Wardah Wunawarsih, Ima Astuty Zainuddin Muchtar ZulfahmiHb, ZulfahmiHb Zulfikar Mardiyadi