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MENINGKATKAN KEMAMPUAN MEMBACA MEMINDAI MELALUI MODEL COOPERATIVE INTEGRATED READING AND COMPOSITION (CIRC) SISWA KELAS IX MTs NEGERI 1 PALEMBANG Nasir, Muhamad; Irzawati, Irzawati
RIPTEKSI KEPENDIDIKAN PGRI RIPTEKSI KEPENDIDIKAN AGUSTUS 2013
Publisher : RIPTEKSI KEPENDIDIKAN PGRI

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Abstract

AbstrakTulisan ini berawal dari penelitian di semester kelas IX siswa MTs Negeri 1  Palembang, pada mata pelajaran Bahasa dan Sastra Indonesia dengan model CIRC. Tujuan penelitian yang hendak dicapai adalah memberikan hasil optimal terhadap kemampuan siswa dalam membaca memindai. Model CIRC  diharapkan dapat memberi pencerahan bagi siswa upaya menangkap makna yang terkandung dalam    sebuah teks bacaan/wacana. Dari hasil penelitian menunjukkan bahwa setelah diterapkannya CIRC maka kemampuan siswa membaca memindai meningkat. Perolehan rerata hasil yang dicapai siswa adalah  71,7 yang berkemampuan cukup baik hingga sangat baik dan telah memenuhi KKM 70 yang dipersyaratkan. Kata Kunci: membaca, memindai, model, pengajaran, siswa
The Development of Gender Based-Teaching Material: Press and Journalistic Skills Tahrun, Tahrun; Nasir, Muhamad; Houtman, Houtman
Jurnal Dosen Universitas PGRI Palembang PROSIDING SEMINAR NASIONAL PENDIDIKAN PGRI 2017
Publisher : Jurnal Dosen Universitas PGRI Palembang

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Abstract

This article presents conceptual design of gender based-teaching material for teaching “Press and Journalistic Skill” to the students of Language and literature education department. This conceptual design is the result of the first year research finding of the two years scheduled. The teaching material developed was in the form of textbook. This teaching material was designed to improve students’ skill in press and journalism. To develop this instructional material, the writers used Research and Development method. The result of the research showed that the content of the textbook of press and journalism covers d the scope of communication, the nature, process and components of communication, mass communication and press/jurnalism, jurnalist, mass media, news, the ethics of journalism, and the press law. This textbook is ended with references.  Key words: teaching material, gender, press, journalistic
SINTESIS DAN KARAKTERISASI NANOKOMPOSIT KONDUKTIF NANOFIBER Nasir, Muhamad
Jurnal Kimia Terapan Indonesia (Indonesian Journal of Applied Chemistry) Vol 15, No 1 (2013)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jkti.v15i1.105

Abstract

Conductive composite polyanilinelPVDF nanofiberhas been synthesized by using co-axial electro spinning.Morphology and diameter of nanofiber was influenced byPVDF polymer concentration and the type of solvent. Beadednanofiberwas formed at lower polymer concentration. On thecontrary, free beaded nanofiber was formed at higherpolymer concentration. Result of FTIR analysis showed thatPVDF crystal structure was dominant by p-phase crystalstructure. Conductive composite nanofiber has potentialapplication in sensor, actuator and airfilter.Keywords: Conductive composite nanofiber, co-axialelectrospinning, polyaniline/pvdf compositenanofiber
Adsorpsi Cu2+ Menggunakan Nanofiber Polisulfon-FeOOH Yang Disintesis Dengan Metode Elektrospinning Adam, Dini Hariyati; Suyani, Hamzar; Nasir, Muhamad; Safni, Safni; Nugraha, Willy Cahya
Jurnal Litbang Industri Vol 3, No 2 (2013)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1725.154 KB) | DOI: 10.24960/jli.v3i2.629.101-108

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It had been done a research about adsorption of Cu2+ using polysulfone-FeOOH nanofiber prepared by elektrospinning method. Polysulfone-FeOOH nanofiber was synthesized by dissolving polysulfone pellets in 30 mL dimethylacetamide (DMAc). The effects of process conditions such as concentration, distance between the nozzle and collector, voltage and flow rate on the morphology and diameter of nanofibers were investigated. The optimum conditions of polysulfone nanofiber synthesizing was obtained with concentration 25%, distance 12 cm, voltage 25 kV, and flow rate  0.05 mL/min with average diameters of fibers was 762.927 nm. Polysulfone nanofiber was coated with FeOOH to increase the adsorbtion capacity of Cu2+. The results showed that optimum condition for removal of Cu2+ used polysulfone-FeOOH nanofiber was obtained in 2 hours contact time, pH 6, adsorbent dosage 25 mg, and concentration of Cu2+ 10 mg/L with adsorbstion capacity was 9.79 mg/g, while for polysulfone nanofiber the adsorption capacity was 8.34 mg/g. The adsorbtion pattern of Cu2+ by the both of adsorbent followed the Freundlich isotherm pattern.ABSTRAK Penelitian mengenai pemisahan ion Cu2+menggunakan nanofiber polisulfon-FeOOH yang disintesis dengan metode elektrospinning telah dilakukan. Nanofiber polisulfon P-3500 disintesis dengan cara melarutkan pelet polisulfon ke dalam 30 mL dimethylacetamide (DMAc). Pengaruh kondisi seperti konsentrasi, jarak nozzle dengan kolektor, tegangan dan laju alir terhadap morfologi dan diameter serat dipelajari. Kondisi optimum pembuatan nanofiber polisulfon diperoleh dengan konsentrasi 23 %, jarak 12 cm, tegangan 25 kV, dan laju alir 0,05 mL/min dengan ukuran diameter serat rata-rata 762,927 nm. Nanofiber yang terbentuk dilapisi dengan FeOOH untuk meningkatkan kapasitas penyerapannya terhadap ion Cu2+. Dari hasil penelitian didapatkan kondisi optimum untuk pemisahan ion Cu2+ menggunakan nanofiber polisulfon-FeOOH yaitu waktu kontak 2 jam, pH 6, bobot adsorben 25 mg, dan konsentrasi Cu2+10 mg/L dengan kapasitas penyerapan 9,79 mg/g, sedangkan untuk nanofiber polisulfon kapasitas penyerapan 8,34 mg/g. Pola penyerapan Cu2+ untuk kedua jenis adsorben lebih sesuai dengan pola isoterm Freundlich 
SIFAT DAYA SERAP AIR DAN STABILITAS PENYERAPAN AIR HIDROGEL POLIMER KOMPOSIT Nasir, Muhamad
Jurnal Kimia Terapan Indonesia (Indonesian Journal of Applied Chemistry) Vol 12, No 2 (2010)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3052.108 KB) | DOI: 10.14203/jkti.v12i2.217

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Hydrogel polymer composite has been synthesized by using 10L scale reactor with batch systems. Hydrogel was synthesized by radical polymerization of a mixture of carboxy methyl cellulose, acrylic acid and methylene bis acrylamide as crosslinker. Hydrogel polymer composite was prepared by adding bentonite to polymer hydrogel. Swelling ratio which indicates of water absorption of hydrogel polymer composite was 60 g / g with a standard deviation of 6.2 %. Durability and stability tests for water absorption of hydrogel polymer composite for 15 days showed the swelling ratio is almost constant and hydrogel is quite stable and not broken down quickly. Effect of temperature and salt solution on water absorption as follow; the water absorption at higher temperatures lower than room temperature and the water absorption from the salt solution is lower than the water absorption of pure water. These results show the hydrogel polymer composite is sensitive to temperature and salt solution.Keyword: hydrogel polymer composite, water absorption,hydrogel stability.
WEB NEWS DOCUMENTS CLUSTERING IN INDONESIAN LANGUAGE USING SINGULAR VALUE DECOMPOSITION-PRINCIPAL COMPONENT ANALYSIS (SVDPCA) AND ANT ALGORITHMS Fadllullah, Arif; Kamudi, Dasrit Debora; Nasir, Muhamad; Arifin, Agus Zainal; Purwitasari, Diana
Jurnal Ilmu Komputer dan Informasi Vol 9, No 1 (2016): Jurnal Ilmu Komputer dan Informasi (Journal of Computer Science and Information)
Publisher : Faculty of Computer Science - Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21609/jiki.v9i1.362

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Ant-based document clustering is a cluster method of measuring text documents similarity based on the shortest path between nodes (trial phase) and determines the optimal clusters of sequence document similarity (dividing phase). The processing time of trial phase Ant algorithms to make document vectors is very long because of high dimensional Document-Term Matrix (DTM). In this paper, we proposed a document clustering method for optimizing dimension reduction using Singular Value Decomposition-Principal Component Analysis (SVDPCA) and Ant algorithms. SVDPCA reduces size of the DTM dimensions by converting freq-term of conventional DTM to score-pc of Document-PC Matrix (DPCM). Ant algorithms creates documents clustering using the vector space model based on the dimension reduction result of DPCM. The experimental results on 506 news documents in Indonesian language demonstrated that the proposed method worked well to optimize dimension reduction up to 99.7%. We could speed up execution time efficiently of the trial phase and maintain the best F-measure achieved from experiments was 0.88 (88%).
AplikasiMarawis Digital Menggunakan Sensor Leap Motion Fernando, Redondo; Supria, Supria; Nasir, Muhamad
INOVTEK Polbeng - Seri Informatika Vol 2, No 2 (2017)
Publisher : P3M Politeknik Negeri Bengkalis

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Abstract

Intisari - Marawis adalah salah satu jenis "band tepuk” dengan perkusi sebagai alat musik utamanya. Musik  ini  merupakan  kolaborasi  antara  kesenian Timur  Tengah dan Betawi,  dan  memiliki  unsur keagamaan yang kental. Itu tercermin dari berbagai lirik lagu yang dibawakan yang merupakan pujian dan kecintaan kepada Sang Pencipta. Pada saat ini memainkan alat musik marawis masih dengan cara manual dengan cara memukul alat musik marawis tersebut dengan sekuat mungkin dan membutuhkan banyak tenaga, dan lama kelamaan tangan akan terasa sakit. Untuk mengatasi masalah tersebut maka di usulkan Aplikasi Marawis Digital Menggunakan Sensor Leap Motion. Aplikasi dibuat dengan Leap Motion  untuk  mendeteksi  titik-titk  koordinat  tangan  pengguna.  Untuk  menghasilkan  dua  suara marawis yang berbeda maka di buat mapping area untuk menentukan suara 1 dan suara 2. Aplikasi ini dapat menjadi alternative untuk memainkan alat musik marawis. Dari hasil uji coba yang dilakukan menunjukkan bahwa aplikasi ini mampu menggantikan penggunaan tenaga manusia ke teknik digital. Kata Kunci : Leap Motion, Aplikasi Desktop, Marawis
SINTESIS DAN KARAKTERISASI NANOFIBER KOMPOSIT Zn-PVDF KOPOLIMER Sari, Yelfira; Nasir, Muhamad; Risdian, Chandra; Syukri, Syukri
Jurnal Kimia Terapan Indonesia (Indonesian Journal of Applied Chemistry) Vol 16, No 1 (2014)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1669.821 KB) | DOI: 10.14203/jkti.v16i1.1

Abstract

Sintesis nanofiber komposit Zn-PVDF kopolimer dengan metoda elektrospinning telah berhasil dilakukan. Proses pembuatan nanofiber komposit serta  morfologi yang terbentuk dipengaruhi oleh penambahan Zn-asetat dengan perubahan diameter rata-rata serat dari 357,13 nm menjadi 777,24 nm. Analisis FTIR menunjukkan bahwa struktur kristal nanofiber komposit Zn-PVDF kopolimer didominasi oleh strukturβ-phase, dengan bilangan gelombang 1190,08 cm-1 dan 487,99 cm-1 untuk struktur α-phase dan 1404,18 cm-1; 1280,73 cm-1; 1074,35 cm-1; 881,47 cm-1; dan 840,96 cm-1 untuk struktur β-phase.Kata kunci :nanofiber komposit, Zn-PVDF kopolimer komposit, elektrospinning,kristal struktur, morfologi, diameter fiber The fabrication of Zn-PVDF copolymer nanofiber composite has been investigated in this research study by using electrospinning method. Fabrication and morphology of nanofiber composite is influenced by the addition of Zn-acetate. The average diameter of nanofiber composites increase with an addition of Zn-acetate, from 357,13 to 777,24nm. FTIRanalysisshowedthat thecrystalstructure ofPVDFnanofiberis dominatedby β-phase , thewave number 1190,08 cm-1 and 487,99 cm-1 for α-phase structure and 1404,18cm-1; 1280,73cm-1; 1074,35cm-1; 881,47cm-1and840,96cm-1 for β-phase structure respectively.Key words : nanofiber composite, Zn-PVDF copolymer composite, electrospinning, crystal structure,  morphology, fiber diameter
SINTESIS DAN KARAKTERISASI PERAK NANOPARTIKELBAKTERIAL SELULOSA BIONANOFIBER NANOKOMPOSIT Nasir, Muhamad; Risdian, Chandra; Syarifuddin, Lilis
Jurnal Kimia Terapan Indonesia (Indonesian Journal of Applied Chemistry) Vol 14, No 1 (2012)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3343.416 KB) | DOI: 10.14203/jkti.v14i1.119

Abstract

Silver nanoparticle-bacterial cellulose bionanofiber nanocomposite (nano Ag-BSB) has been synthesized by using trisodium nitrate as reducing agent. The arrangement offiber in nano Ag-BSB nanocomposite has random shape after 26 confirmed by scanning electron microscopy (SEM)analysis. Nano Ag-BSB nanocomposite has average 64.1 nm in nanofiber diameter. Fourier infra red spectroscopy and X-ray diffraction analysis showed crystal structure in Ag-BSB nanocomposite is cellulose type L Crystalinity of BSB and Ag-BSB are 94 % and 89 %, respectively.This result showed that presence of silver nanoparticles in BSB decreased crystalinity of BSB. Ag-BSB nanocomposite has good performance in inhibitingE-Coli growth.Keywords: Silver nanoparticle; nanocomposite, bacterial cellulose bionanofibet; silver nanoparticlebacterial cellulose bionanofiber nanocomposit
Study of Humic Acid Adsorption Equilibrium on Dual Nanofiber PMMA/PVDF Zulfikar, Muhammad Ali; Bahri, Afdal; Nasir, Muhamad
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 3, No 1 (2018): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v3i1.11918

Abstract

The main objective of this study is to investigate the isotherm sorption of humic acid (HA) from aqueous solution onto dual nanofiber PMMA/PVDF. Batch adsorption experiments were carried out using HA solution as an adsorbate under variety of concentration in the range of 50-200 mg/L. The experimental data were analyzed by the Langmuir, Freundlich and Sips models of adsorption. The experimental results indicate that, the adsorption capacity of HA adsorption increases with an increase in the HA concentrations. The adsorption of HA onto dual nanofiber PMMA/PVDF agrees well with the Langmuir isotherm models with the maximum adsorption capacity was found to be 137.40 mg g-1 at concentration of 100 mg L-1.