Article Per Year (5 Year)
p-Index From 2021 - 2026
2.87
P-Index
This Author published in this journals
All Journal BULETIN OSEANOGRAFI MARINA Jurnal Floratek Majalah Obat Tradisional EduChemia: Jurnal Kimia dan Pendidikan Aceh Journal of Animal Science Jurnal Dimensi PYTHAGORAS: Jurnal Program Studi Pendidikan Matematika Science and Technology Indonesia Omni-Akuatika BIOEDUSCIENCE Indonesian Journal of Pure and Applied Chemistry JMM (Jurnal Masyarakat Mandiri) Minda Baharu Jurnal Lemuru : Jurnal Ilmu Perikanan dan Kelautan Indonesia Jurnal Pembelajaran dan Biologi Nukleus Journal of halal product and research (JHPR) JCP (Jurnal Cahaya Pendidikan) Fakultas Keguruan dan Ilmu Pendidikan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Aceh Journal of Animal Science At Turots: Jurnal Pendidikan Islam
Ismarti, Ismarti
UNiversitas Riau Kepulauan
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Veterinary Other

Published : 29 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 29 Documents
Search

 1   2   3 
PERBANDINGAN MODEL PEMBELAJARAN TIPE MAKE A MATCH DENGAN NUMBERED HEAD TOGETHER TERHADAP HASIL BELAJAR MATEMATIKA SISWA KELAS VIII SMP NEGERI 34 BATAM TAHUN PELAJARAN 2013/2014 Ismarti, Ismarti; Gusfyana, Raja Rizsca
PYTHAGORAS : Jurnal Program Studi Pendidikan Matematika Vol 4, No 1 (2015): PYTHAGORAS: Jurnal Program Studi Pendidikan Matematika
Publisher : UNIVERSITAS RIAU KEPULAUAN, BATAM, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (257.383 KB) | DOI: 10.33373/pythagoras.v4i1.565

Abstract

Abstrak Fakta di lapangan menunjukkan bahwa pembelajaran matematika masih kurang memberikan kesempatan pada siswa untuk aktif dalam proses pembelajaran.  Hal ini berdampak pada hasil belajar siswa.  Upaya yang dilakukan untuk meningkatkan hasil belajar matematika adalah dengan variasi model pembelajaran.  Pada penelitian ini dibandingkan hasil belajar matematika siswa dengan menggunakan model pembelajaran kooperatif tipe Make a Match (MM) dan Numbered Head Together (NHT).Populasi dalam penelitian ini adalah seluruh siswa kelas VIII SMPN 34 Batam yang berjumlah 6 kelas dengan total 212 siswa. Dari populasi diambil 2 kelas yaitu VIIIb dengan 36 siswa sebagai kelas eksperimen 1 dan kelas VIIIe dengan 36 siswa sebagai kelas eksperimen 2.  Kelas eksperimen 1 menggunakan tipe Numbered Head Together dan kelas eksperimen 2 menggunakan tipe Make a Match.Dari hasil penelitian diperoleh nilai rata-rata kelas eksperimen 1 dengan tipe Numbered Head Together adalah 82,28 dan rata-rata kelas eksperimen 2 dengan tipe Make a Match adalah 80,78. Analisis data dengan uji t diperoleh thitung (0,5539)ttabel (1,994) menunjukkan tidak terdapat perbedaan signifikan dari hasil belajar matematika menggunakan model pembelajaran kooperatif tipe Make a Match (MM) dan Numbered Head Together (NHT). Kata kunci: make a match, numbered head together, pembelajaran kooperatif, hasil belajar matematika. Abstract The fact on the field show that learning math is very less to giving opportunity to the student to be active in the process. This case enhance outcomes of learning process. The effort to increase the outcomes of learning math is use variation of learning models.  This research is to compare the learning outcomes with cooperative learning models, Make a Match type and Numbered Head Together type.Population in this study were all eighth grade students of SMP Negeri 34 Batam from   six classes with 212 students. From the population is taken two classes, VIIIb with 36 students as 1st experimental class and VIII E with 36 students as 2ndexperimental class. The first experimental class used  Numbered Heads Together type while the second experimental class used the model of learning Make a Match.From this research, the average value of the 1st experimental class I with Numbered Head Together type is 82.28 and  average value of 2ndexperimental class with Make a Match type is 80.78. The result of analyse data using t test  obtained t result (0.5539) ttabel  (1.994) showed that there were no significant differences of the results using a math model of learning Make a Match type and Numbered Head Together type. Keyword : make a match, numbered head together, cooperative learning, mathematics learning outcomes
KANDUNGAN LOGAM BERAT Pb DAN Cd PADA SEDIMEN DAN KERANG DI PERAIRAN BATAM S, Ismarti; Amelia, Fitrah; Ramses, Ramses
JURNAL DIMENSI Vol 4, No 3 (2015): JURNAL DIMENSI
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (463.892 KB) | DOI: 10.33373/dms.v4i3.45

Abstract

The determination of metal content of lead (Pb) and cadmium (Cd) on sediments and shellfish samples from coastal waters’s of Batam. Samples was collected from 6 location grably. Sediments and shellfish samples obtained dried in an oven at a temperature of 80-105oC. The samples were dried crushed and made wet digestion with nitric acid. Pb and Cd levels were determined using spectrophotometry method at 228.72 nm resonance line Cd and Pb to 283.30 nm. The results showed that the levels of heavy metals Pb and Cd in sediments and shellfish samples varied. The highest levels of Pb and Cd found in sediments from Buluh Island, respectively 20.12 mg / kg for Pb and 0,24mg / kg for cadmium. Based on the value SQG, concentrations of Pb and Cd metal in sediments is still at the standards for sediments that have not been contaminated. Pb levels in the shells found at all sampling locations exceeded the specified threshold BPOM RI, whereas Cd metal levels are still below the threshold set BPOM RI, except in shellfish samples from Buluh Island.
MENINGKATKAN PENGUASAAN BILANGAN DENGAN MENTAL ARITMATIKA SEMPOA S, Ismarti
JURNAL DIMENSI Vol 1, No 2 (2012): JURNAL DIMENSI (JULI 2012)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (280.613 KB) | DOI: 10.33373/dms.v1i2.172

Abstract

Salah satu tujuan kurikulum terpenting dalam pembelajaran matematika pada tingkatan sekolah dasar baik di Indonesia maupun di negara-negara maju seperti Amerika Serikat, Inggris, dan  Australia adalah mengembangkan penguasaan anak mengenai bilangan (number sense). Penekanan  akan pentingnya penguasaan bilangan ini pada tingkatan sekolah dasar, tercantum dalam kurikulum  sekolah di Indonesia, Amerika Serikat, Inggris, maupun Australia.            Rendahnya   kemampuan   anak   dalam   penguasaan   bilangan,   khususnya  berhitung,  menjadi permasalahan yang serius dalam pembelajaran matematika di sekolah.  Mental aritmatika sempoa adalah suatu metode yang dapat menjadi solusi untuk meningkatkn penguasaan bilangan, khususnya berhitung.  Dengan mental aritmatika sempoa seorang anak mampu berhitung lebih cepat, mempunyai konsentrasi yang baik dan lebih kreatif sehingga dapat mencapai tingkat berfikir analisis dan logika berfikir yang benar.
Heavy Metals (Cu, Pb and Cd) in Water and Angel Fish (Chelmon rostractus) from Batam Coastal, Indonesia Ismarti Ismarti; Ramses Ramses; Suheryanto Suheryanto; Fitrah Amelia
Journal Omni-Akuatika Vol 13, No 1 (2017): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (870.424 KB) | DOI: 10.20884/1.oa.2017.13.1.77

Abstract

Fish play an important role in human nutrition and therefore need to be carefully and routinely monitored to ensure that there are no high levels of heavy metals being transferred to human through their consumption. This study has been carried out to determine level of heavy metals (Cu, Pb, and Cd) in water and angel fish, Chelmon rostractus collected from coast of Batam. We report levels of Cu, Cd and Pb in water and angel fish from Coast Batam using Atomic Absorption Spectroscopy (AAS). Level of heavy metals obtained in water and fishes were fluctuative. Cu was obtained in both, water and fish muscles. Level of Cu in fishes muscle still under the permissible limit, but it was exceeded permissible limit for water. Cd not detected in water, but it was obtained in fish muscles. Level of Cd in fishes from Tanjung Pinggir site was exceeded permissible limit. High level of Pb was found in water and fish muscles. Level of Pb in water and fish muscles were exceeded permissible limit. It is indicated that the coast Batam has contaminated with Cu, Pb and Cd. Key words: heavy metals, angel fish, marine pollution, Batam coastal
DISSIPASI β-SIFLUTRIN PADA LAHAN KANGKUNG (Ipomoea reptans) Ismarti Ismarti
Jurnal Floratek Vol 12, No 1 (2017): April 2017
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (656.854 KB)

Abstract

b-cyfluthrin has been in agricultural use in the recent years for controlling Lepidopteran pest affecting leafy vegetables crops. The extensive use of synthetic pyrethroids like b-cyfluthrin has resulted in wide spread environmental contamination. A study on residue dynamic of b-cyfluthrin applied to kangkong-land has been conducted. Buldock 25 EC with maximum recommended dose was used. The analysis was performed on kangkong land while land without kangkong used as control. Extraction was carried out with the soxhlet method, while the cleaning up process was carried out with carbon-and-florisil-double-layered column. High resolution gas chromatography with Electron Capture Detector (ECD) was used to determine the concentration. On  kangkong-land with 14,52% organic matter, sorption of b-cyfluthrin was observed. Residue of b-cyfluhtrin on soil increased to 16th days. The dissipation rate on land without kangkong and kangkong-land are fast with dissipation rate 2,5 x 10-1 day-1  and 5,76 x10-1 day-1respectively. Organic matter play an important role in the dissipation rate of b-cyfluthrin residue in the tropical farmland of Indonesia.
Biokonsentrasi Faktor Logam Berat pada Kerang dari Perairan Batam, Kepulauan Riau, Indonesia Fitrah Amelia; Ismarti Ismarti; Ramses Ramses; Rozirwan Rozirwan
EduChemia (Jurnal Kimia dan Pendidikan) Vol 4, No 2 (2019)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (211.68 KB) | DOI: 10.30870/educhemia.v4i2.5529

Abstract

Penelitian ini bertujuan untuk menentukan tingkat bioakumulasi logam berat pada kerang yang berada di perairan barat pulau batam. Batam merupakan daerah yang memiliki potensi besar terhadap pencemaran logam berat, karena tingginya aktifitas yang ada di perairan. Penelitian ini dilakukan di lima lokasi sampling. Sampel dalam penelitian ini adalah kerang dengan spesies Anadara sp., Perna viridis dan Crassostrea gigas. Logam berat yang diteliti yaitu logam kadmium (Cd), timbal (Pb) dan tembaga (Cu). Analisa logam berat dilakukan menggunakan Atomic Absorption Spectroscopy (AAS). Berdasarkan hasil perhitungan diperoleh faktor biokonsentrasi (BCF) logam berat pada spesies Anadara sp., Perna viridis dan Crassostrea gigas.  Biokonsentrasi logam dalam medium air secara berturut-turut teramati bahwa Pb > Cu > Cd, dengan kategori BCF Pb dan Cu tergolong tinggi, serta Cd tidak terdeteksi.  Sedangkan untuk spesies Anadara sp. dalam medium sedimen diperoleh biokonsentrasi logam berat Cu > Cd > Pb dengan kategori BCF rendah untuk semua logam. Selanjutnya, untuk spesies Perna Viridis dan Crassostrea gigas diperoleh biokonsentrasi logam Cd > Pb > Cu, dengan kategori BCF-nya juga tergolong rendah.
Length-weight relationships and condition factors of four dominant fish caught by coral bubu trap on the west coast of Batam Island, Indonesia Ramses Ramses; Ismarti Ismarti; Fauziah Syamsi
Aceh Journal of Animal Science Vol 5, No 1 (2020): July 2020
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/ajas.5.1.14902

Abstract

One of the important components in aquatic ecosystems is fish diversity, which is a key factor in determining its functionality. The coral reef fish is one of the aquatic biotas susceptible to pollutants. Besides being able to influence the composition of fish diversity, it also has an impact on its biological factors, such as its length-weight and conditions. This study aims to examine the relationship of length-weight and condition factors of four dominant fishes caught, which are ecologically and economically important, namely Lates calcarifer, Parachaetodon ocellatus, Stephanolepis cirrhifer, and Chelmon rostractus.These fish species were dominantly caught using  bubu trap. The results of the length-weight relationship were b3 of all species, with an exponent value of 2.247 for the L. calcarifer; 1.932 for P. ocellatus; 2.74 for S. cirrhifer and 2.84 for C. rostractus. Fulton’s (K) condition factor for L. carifer ranged from 15.55-21.06 (average: 17.95), for P.ocellatus ranging from 27.30-35.59 (average: 30.38), for S. cirrhifer ranged from 17.58-27.23 (average: 21.29), and for C. rostractus ranging from 21.86-30.95 (average: 24.24). While the relative weight (Wr) condition factor average value of L. calcarifer is 102.53, P. ocellatus is 100.88, S. cirrhifer is 101.72, and C. rostractus is 101.11.  It is concluded that the fish had an allometrict growth pattern, and condition factor values indicate good aquatic environmental conditions and a balance between prey and predatorKeywords: Length-Weight; Growth Pattern; Condition Factors
STUDI KANDUNGAN LOGAM BERAT PADA TUMBUHAN DARI PERAIRAN BATAM, KEPULAUAN RIAU STUDY OF HEAVY METALS CONTENT IN PLANTS FROM COAST BATAM, RIAU ISLANDS Ismarti Ismarti; Ramses Ramses; Fitrah Amelia; Suheryanto Suheryanto
JURNAL DIMENSI Vol 6, No 1 (2017): JURNAL DIMENSI (MARET 2017)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (549.286 KB) | DOI: 10.33373/dms.v6i1.543

Abstract

Studi ini bertujuan menentukan kadar logam tembaga (Cu), kadmium (Cd) dan timbal (Pb) pada berbagai jenis tumbuhan di perairan Batam. Sampel tumbuhan yang dianalisis meliputi lamun, makro alga dan mangrove yang diambil dari enam lokasi sepanjang perairan barat pulau Batam. Penentuan kadar logam Cu, Cd dan Pb mengacu pada metode SNI dengan menggunakan Spektrometri Serapan Atom. Hasil penelitian menunjukkan bahwa kadar logam berat Cu, Cd dan Pb pada sampel di semua lokasi bervariasi dan telah melebihi baku mutu yang ditetapkan di Indonesia (Cu dan Pb 0,008 mg/kg dan Cd 0,001 mg/kg). Rata-rata kadar logam Cu dan Pb tertinggi ditemukan pada sampel dari area Pelabuhan Sekupang yaitu 23,94 mg/kg dan 11,24 mg/kg. Rata-rata kadar logam Cd tertinggi yaitu 0,49 mg/kg ditemukan di area Pelabuhan Sagulung. Berdasarkan hasil penelitian ini, disimpulkan bahwa perairan pulau Batam telah tercemar logam Cu, Pb dan Cd.Kata kunci: pencemaran laut, logam berat, metode AAS, pulau BatamAbstractThis study is aim to determine level of heavy metals copper (Cu), cadmium (Cd) and lead (Pb) in various sample of plants that collected from coast Batam have been done. Sample of plants are seagrass, macro algae and mangrove from six locations along west Batam island. Determination of heavy metals Cu, Cd and Pb refer to SNI method using Atomic Absorption Spectrophotometric. The result of analysis show that concentrations of Cu, Cd and Pb in all locations was exceed Indonesia regulation (Cu and Pb 0,008 mg/kg, Cd 0,001 mg/kg). The highest average concentrations of Cu and Pb found at samples from Sekupang Port are 23,94 mg/kg and 11,24 mg/kg respectively. The highest average concentrations of Cd are 0,49 mg/kg found at Sagulung’s samples. Based on these result, it was concluded that coastal water of Batam Island have been contaminated with metals Cu, Pb and Cd.Keywords: marine pollution, heavy metals, AAS method, Batam island
Rapid detection of pork and pig derivatives based on volatile compounds aroma using electronic nose Ismarti Ismarti
Journal of halal product and research (JPHR) Vol. 4 No. 2 (2021): Journal of Halal Product and Research (JHPR)
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jhpr.vol.4-issue.2.59-64

Abstract

The development of food processing technology has increased the number and types of food products to meet human needs. The quality of a food product is not only seen from nutritional value and safety, but also from halalness aspect. For the purposes of quality control and halal authentication, the existence of a food testing method that is fast, accurate and easy to handling is needed. The application of electronic nose for various volatile compound detection purposes has been widely reported. This paper discusses electronic nose applications for quality control and halal testing purposes on food products. Furthermore, it also discussed the advantages and disadvantages of testing with an electronic nose. Based on the discussion, the electronic nose is a portable detection tool that is user friendly, fast and accurate for the identification and detection of food products based on the presence of the aroma of volatile compounds in the material. The advantages of this electronic nose have the potential to be used as an alternative rapid detection instrument in food testing, especially in authenticating pork and pig derivative.
ANALISIS RESIDU BETA SIFLUTRIN PADA TANAMAN KANGKUNG (Ipomoea reptans) Ismarti Ismarti
CAHAYA PENDIDIKAN Vol 1, No 1 (2015): JCP (Jurnal Cahaya Pendidikan) Fakultas Keguruan dan Ilmu Pendidikan
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (195.102 KB) | DOI: 10.33373/chypend.v1i1.385

Abstract

Kesehatan individu tidak dapat dipisahkan dari kesehatan lingkungan. Pestisida yang diaplikasikan pada tanaman pangan dan sayuran dapat tertinggal pada tanaman, jatuh ke tanah dan menjadi sumber polutan di lingkungan.  Dalam studi ini dilakukan analisis residu insektisida piretroid dengan bahan aktif beta siflutrin yang diaplikasikan pada tanaman kangkung.  Insektisida yang digunakan adalah Buldock 25EC dengan dosis anjuran maksimum.  Pengambilan residu beta siflutrin dilakukan dengan metode ekstraksi menggunakan pelarut diklorometana dan petroleum eter (1:1) dan proses clean up dengan kolom berlapis karbon dan florisil.  Penetapan kadar dilakukan dengan kromatografi gas resolusi tinggi dengan detektor  ECD (Electron Capture Detector).Laju sorpsi pada tanaman kangkung lebih besar dari pada laju dissipasi mengindikasikan terjadinya akumulasi residu pestisida pada tanaman kangkung.  Akumulasi beta siflutrin terjadi hingga hari ke-15 dan selanjutnya beta siflutrin mengalami dissipasi dengan konstanta laju 3,3 x 10-2 hari-1.  DT50 beta siflutrin pada kangkung ditemukan cukup besar, yaitu 21,005 hari.Kata kunci: residu beta siflutrin, Bulldock 2EC, kangkung
Co-Authors Agus Sulistyo Daniel Marpaung, Carlos Bettran Devi Novianti Devi Novianti, Devi Dian Mayasari Dian Prasasti Dian Prasasti Dinata, Rifal Dody Dwi Handoko Ella Puspita Ramdhania Fauziah Syamsi Fauziah Syamsi Fety Andriani Fitrah Amelia Fitrah Amelia Fitrah Amelia Fitrah Amelia Fitrah Amelia Fitrah Amelia Hamzah M. Salleh Hasibuan, Nirma Adeseprianah Hermansah Hermansah Hermansah Hermansah, Hermansah Jaya Dwi Putra, Jaya Dwi Khoirotunnisa Siregar Kuwat Triyana Lani Puspita Mawaddah, Dina Muslih Anwar Muslih Anwar Nina Salamah Noor Faizul Hadry Nordin Nurhaty Purnama Sari Nurrulhidayah A. Fadzillah Qoriaturrosyidah, Fitri Raja Rizsca Gusfyana, Raja Rizsca Ramses Firdaus, Ramses Ramses Ramses Ramses Ramses Rozirwan . Simanjuntak, Friska Yanti Suheyanto Suheryanto Sulistyo, Agus Suryo Hartanto Yarsi Efendi Yesi Gusmania Yesi Gusmania, Yesi Yudhi Hanggara