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OPTIMASI TANAH NAPA SEBAGAI ADSORBEN ION CU(II) Firdaus, Muhamad; Mawardi, Mawardi; Amrin, Amrin
Periodic Vol 2, No 2 (2013)
Publisher : Jurusan Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/p.v2i2.3032

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Has been done numerous studies to reduce levels of heavy metals in sewage waste products and many methods have been developed. Adsorption method with the right choice of adsorbent is a simple but quite effective method in removing heavy metals from wastewater. Napa soil contains high amount of silica and alumina which is 63.20% and 16.55%, the amount of silica and alumina in the soil napa almost the same with natural zeolite, so it can be used as an adsorbent. In this research, study has been conducted with the aim of determining the optimum condition of Copper(II) ion adsorption with Continuous system by napa soil adsorbent obtained from Aripan, Solok. In this research, was studied the effect of various parameters that affect the absorption capacity of the napa soil to adsorp Cu (II) ion, which is the pH of the solution, the initial concentration of the solution, the temperature of heating the adsorbent, adsorbent particle size, and the eluent flow rate. These results indicate that the optimum pH is 4, optimum initial concentration of the solution is 200 ppm, while optimum adsorbent heating temperature and optimum adsorbent particle size is 125°C  and 1700 mm respectively, and the optimum flow rate is 20 drops / min. Research data obtained was in accordance with the Langmuir adsorption isotherm curve when plotted C / m as a function of C then was obtained a linear curve which means adsorption of Cu (II) ion by Napa soil takes place chemically, adsorption affinity constant and maximum adsorption capacity was determined by using Langmuir adsorption isotherm equation which is 2.483 and 0.169 mg / g respectively.
Prevention of endothelial dysfunction in streptozotocin-induced diabetic rats by Sargassum echinocarpum extract Firdaus, Muhamad; Astawan, Made; Muchtadi, Deddy; Wresdiyati, Tutik; Waspadji, Sarwono; Karyono, Setyawati S.
Medical Journal of Indonesia Vol 19, No 1 (2010): February
Publisher : Faculty of Medicine Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (455.838 KB) | DOI: 10.13181/mji.v19i1.382

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Aim This study aimed to elicit the protective effect of Sargassum echinocarpum extract on endothelial dysfunction in thoracic aorta of streptozotocin-induced diabetic rats.Methods The animals were divided into 5 groups. The first was normal, the second was diabetic non treated animals. The third to fifth groups were the diabetic animals which given Sargassum echinocarpum extract (150; 300, and 450 mg kg-1 body weight, respectively) by oral gavage and extract treatment was given for 12 weeks. Diabetes was induced by single administration of streptozotocin (45 mg kg-1, i.p.), dissolved in freshly prepared 0.1 M citrate buffer, pH 4.5. Diabetes was confirmed ten days latter in streptozotocin induced animals showing blood glucose levels > 200 mg dL-1 (11.1 mmol L-1) as monitored in the blood from tail vein using glucometer. After the treatment period, the blood serum acquired was used for antioxidant enzymes assays and the thoracic aorta was used for vasorelaxation assay.Results There was a significant decrease in the activity of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-px) in diabetic rats (3.31 ± 0.12;67.17 ± 0.62;35.10 ± 0.83) comaped to control rats (9.97 ± 0.12;185.31 ± 0.23;116.38 ± 0.88). Administration of Sargassum extract increased the activity of SOD, CAT, and GSH-px. The diabetic rats exhibit endothelial dysfunction as shown by loss of vasodilatory response to acethylcholine (ACH). This was restored by administration of Sargassum extract.Conclusion Sargassum echinocarpum extract ameliorates oxidative stress and reverses the endothelial dysfunction associated with diabetes. This effect appears to be due to its antioxidant properties. (Med J Indones 2010; 19:32-5)Keywords: oxidative stress, sargassum echinocarpum, endothelium dependent relaxation, thoracic aorta
MEMASYARAKATKAN MATEMATIKA MELALUI PERAN KELUARGA Saputro, Marhadi; Firdaus, Muhamad; Darma, Yudi; Haryadi, Rahman; Hartono, Hartono; Ardiawan, Yadi; Susiaty, Utin Desy; Oktaviana, Dwi; Irvandi, Wandra
Transformasi: Jurnal Pengabdian Masyarakat Vol 14 No 2 (2018): Transformasi Desember
Publisher : LP2M Universitas Islam Negeri Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (290.337 KB) | DOI: 10.20414/transformasi.v14i2.577

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[Bahasa]: Kegiatan pengabdian kepada masyarakat ini berupa penyuluhan dengan judul ?Memasyarakatkan Matematika Melalui Peran Keluarga?. Kegiatan ini dilaksanakan di Aula Desa Batu Ampar. Peserta kegiatan PKM ini adalah orang tua siswa yang berdomisili di desa Batu Ampar, yang berjumlah 30 orang. Tujuan dari kegiatan pengabdian adalah untuk: (1) memberikan penyuluhan kepada masyarakat Kecamatan Batu Ampar Kabupaten Kubu Raya tentang memotivasi dan menumbuhkan minat terhadap matematika; (2) mengetahui tanggapan masyarakat terhadap penyuluhan tentang memasyarakatkan matematika. Kegiatan pengabdian kepada masyarakat yang berupa penyuluhan Memasyarakatkan Matematika Melalui Peran Keluarga di Batu Ampar ini dapat disimpulkan yaitu: (1) kegiatan penyuluhan memberikan informasi dan motivasi kepada orang tua selaku keluarga yang mempunyai peran penting dalam melakukan pendampingan belajar anak di rumah sebagai upaya meningkatkan kualitas pembelajaran khususnya mata pelajaran matematika anak; (2) kegiatan pelatihan ini perlu diadakan kembali untuk daerah yang lain sehingga dapat menambah pengetahuan dan informasi yang akurat kepada keluarga betapa pentingnya peran mereka sebagai pendamping belajar anak. Kata kunci: Memasyaratkan, Matematika, Peran keluarga [English]: This community service program is in the form of counseling with the title "Socializing Mathematics through the Role of Families." This program was carried out in the Batu Ampar Village Hall. The participants are thirty parents of students who live in Batu Ampar village. The program aims to: (1) provide counseling to the people of Batu Ampar Subdistrict, Kubu Raya Regency about motivating and fostering interest in mathematics; (2) knowing the community's response to counseling about socializing mathematics. Community service activities in the form of counseling Socializing Mathematics through the Role of Families in Batu Ampar can be concluded, namely: (1) extension activities provide information and motivation to parents as families who have an important role in assisting child learning at home as an effort to improve the quality of learning especially children's mathematics subjects; (2) this training activity needs to be held again for other regions so that it can add accurate knowledge and information to the family how important their role is as a child learning companion. Keywords: socialize, mathematic, family role
EKSPLORASI ETNOMATEMATIKA ISLAMI PADA TRADISI MAKAN BESAPRAH Firdaus, Muhamad; Hodiyanto, Hodiyanto
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 8, No 3 (2019)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/ajpm.v8i3.2385

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Tujuan dalam penelitian adalah untuk mendiskripsikan alat-alat yang digunakan maupun aktivitas yang dilakukan dalam tradisi makan besaprah pada upacara pernikahan melayu di Kecamatan Sambas. Metode yang digunakan dalam penelitian ini adalah penelitian kualitatif berupa etnografi. Teknik pengumpulan data yang digunakan adalah observasi, wawancara, dan dokumentasi sehingga alat pengumpul data yang digunakan adalah lembar observasi, lembar wawancara, dan dokumen. Pemeriksaan keabsahan dalam penelitian ini menggunakan teknik triangulasi sumber. Berdasarkan hasil penelitian dan pembahasan dapat diambil kesimpulan bahwa: (1) Alat yang digunakan dalam makan besaprah adalah: alas saprah, batel, pinggan saprah, piring laok, pinggan nase?, cawan, baki ae?, baki laok, sarbet dan berkaitan dengan konsep bangun datar, bangun ruang, pola bilangan, dan geometri. (2) Adapun aktivitas yang dilakukan dalam makan besaprah yaitu aktivitas persiapan sebelum makan besaprah yang dilakukan Melayu Sambas ada empat, yaitu merancap, bekaot, nyiapkan sajian saprahan, besurong.  AbstractThe purpose of this research is to describe the tools used and the activities carried out in the tradition of eating besaprah at the Malay wedding ceremony in Sambas District. The method used in this research is qualitative research in the form of ethnography. Data collection techniques used were observation, interviews, and documentation so that the data collection tools used were observation sheets, interview sheets, and documents. The validity check in this study uses the source triangulation technique. Based on the results of research and discussion, it can be concluded that: (1) The tools used in eating besaprah are alas saprah, batel, pinggan saprah, piring laok, pinggan nase?, cawan, baki ae?, baki laok, sarbet and are related to the concept geometry and number patterns. (2) As for the activities carried out in eating besaprah, there are four preparatory activities before eating besaprah by Sambas Melayu: merancap, bekaot, nyiapkan sajian saprahan, besurong.
KEMAMPUAN PENALARAN MATEMATIS DAN MOTIVASI MAHASISWA CALON GURU MELALUI MODEL RECIPROCAL TEACHING Firdaus, Muhamad; Darma, Yudi; Haryadi, Rahman
Jurnal Edukasi Matematika dan Sains Vol 2, No 1 (2014)
Publisher : IKIP PGRI MADIUN

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

Abstract

This study aims to determine the effectiveness of each category of learning, motivation, and its interaction with mathematical reasoning ability. Form of quasi-experimental research is the 2 x 3 factorial design of this study population are student teachers in mathematics education courses STKIP PGRI Pontianak. Sampling was done by cluster random sampling technique. The instrument used to collect the data is motivation questionnaire, and mathematical reasoning ability test conducted by first corresponding item analysis procedures. Based on the hypothesis testing using a two-way ANOVA different cells and further testing, research concluded that: mathematical reasoning ability of the student in the learning model of reciprocal teaching better than conventional learning, both in general and by category level of motivation; And mathematical reasoning abilities of students with high motivation better than mathematical reasoning abilities of students with low motivation, and mathematical reasoning skills of students with high motivation as well as being motivated, and the same thing also in the medium and low motivation, both in general and by category learning. Keywords: Reciprocal Teaching, Motivation, Mathematical Reasoning Ability
Effects of brown algae extract to function of aorta endothelium cell in diabetic rats Firdaus, Muhamad; Astawan, Made; Muchtadi, Deddy; Wresdiyati, Tutik; Waspadji, Sarwono; K., Setyawati S.
INDONESIAN JOURNAL OF PHARMACY Vol 21 No 3, 2010
Publisher : Faculty of Pharmacy Universitas Gadjah Mada, Yogyakarta, Skip Utara, 55281, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (212.495 KB) | DOI: 10.14499/indonesianjpharm0iss0pp151-157

Abstract

Macro and microvascular disease are currently the principal causes of morbidity and mortality in diabetes mellitus patients. Loss of the modulatory role of  the  endothelium  may  be  a  critical and  initiating factor  in  the  development of diabetic  vascular  disease.  Polyphenol is known behave protective active compound to function endothelium cell.  Polyphenol that contained in brown algae was phlorotannin.  The  aim  of  the  present  study  was  to  investigate  the effects  of  S.  echinocarpum extract  on  endothelial  dysfunction  in  aorta  of streptozotocin  diabetic  rats.  This experiment was conducted by complete randomized design in 2 months old of male albino Sprague Dawley strain of rats, 125-150 grams body weight. The rats divided in fivegroups, each group consist of  6  rats.  First  group:  normal  which  is  given  1  mL  of  extract  vehicle  orally; second  group:  diabetic  rats  which  is  given  1  mL  of  extract  vehicle  orally;  third group:  diabetic  rats  which  is  treated  extract  150  mg/kg  BW  dose  orally;  fourth group: diabetic rats which is treated extract 300 mg/kg BW dose orally; and fifth group: diabetic rats which is treated extract 450 mg/kg BW orally. Diabetic rats prepared by injection of 45 mg/kg  streptozotocin  intraperitoneally.  Extract was given to diabetic rats during 90 days.  The  result  showed  that  brown  algae extract  rearrange  endothelium  cell  function  of  diabetic  rats  by  increasing relaxation,  releasing  of  EDRF  and  decreasing  of  MDA.  Based on these observations,  it  was  concluded  that  S.  echinocarpum extract  recovers  the endothelial  dysfunction  associated  with  diabetes.  This effect appears to be  due to its antioxidant properties.Key words: diabetes, EDRF, endothelial dysfunction, MDA, S. Echinocarpum
PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE STUDENT TEAMS ACHIEVEMENT DIVISION (STAD) TERHADAP HASIL BELAJAR SISWA SMP Firdaus, Muhamad
Jurnal Pendidikan Informatika dan Sains Vol 5, No 1 (2016): Jurnal Pendidikan Informatika dan Sains
Publisher : IKIP PGRI Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (235.534 KB)

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh pembelajarankooperatif tipe Student Teams Achievement Division (STAD) terhadap hasil belajar siswa pada materi operasi hitung bentuk aljabar Kelas VII SMP Negeri 1Kendawangan Kabupaten Ketapang, Metode penelitian adalah eksperimen, bentuk penelitian pre-eksperimen dan rancangan penelitian one group pretest postest design. Populasi penelitian ini semua siswa kelas VII SMP Negeri 1 Kendawangan yang terdiri dari 5 kelas. Sampel yang digunakan adalah kelas VIIB. Teknik pengumpulan data pada penelitian ini adalah teknik pengukuran dengan alat pengumpul data berupa tes hasil belajar. Berdasarkan hasil analisis data, dapat disimpulkan: (1) Hasil belajar siswa pada materi operasi hitung bentuk aljabar sebelum diterapkan model pembelajaran kooperatif tipe Student Teams Achievement Division (STAD) tergolong kurang; (2) Hasil belajar siswa pada materi operasi hitung bentuk aljabar setelah diterapkan model pembelajaran kooperatif tipe Student Team Achievement Division (STAD) tergolong baik; (3) Terdapat pengaruh penerapan model pembelajaran kooperatif tipe Student Teams Achievement Division (STAD) terhadap hasil belajar siswa pada materi operasi hitung bentuk aljabar kelas VII SMP Negeri 1 Kendawangan Kabupaten Ketapang.Kata Kunci: STAD, Hasil Belajar
XML Compression System on Smartcard Case Study of Medical Record Data Habib, Ahmad; Firdaus, Muhamad; Syarifuddin, Muhammad
Journal of Telematics and Informatics Vol 6, No 2: June 2018
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (250.116 KB) | DOI: 10.12928/jti.v6i2.

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In the medical service at the practice site as well as in the standard hospital, the physician keeps a record of the patient's information in a file known as the medical record. The drawback to this file is the availability of unreliable data. Where a patient's medical record should be searched one by one in a particular file. In this research, we will create a medical record application system with XML compression feature with tag method (firstchild,sibling)* data combined with Bzip2 method on ACOS smartcard storage media. The results obtained are, the ratio of file size written on smartcard media is smaller than the files that are not compressed. The average ratio ranges from 14.04% with sampling data from 500 - 31000 bytes. Average reading time is 5.71 seconds, and the writing process is about 11.69 seconds.
Increasing The Quality Of Dry Seaweeds By Drum Washing Machine Firdaus, Muhamad
Journal of Innovation and Applied Technology Vol 1, No 2 (2015)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (408.393 KB) | DOI: 10.21776/ub.jiat.2015.001.02.4

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AbstractJabon area, Sidoarjo district is one of shoreline area that it have about 40 percentage of this is ponds. These used farming of agarophyte seaweeds, i.e. alga producing agar-agar, such as Gracilaria sp. Postharvest activity of this by farmer comprise of plucking, bringing, drying, and packaging produce quality of dry seaweeds lower than Indonesia National Standard and cause cheap price. The purpose of this study was to obtain increasing quality of dry agarophyte seaweeds by drum type of washing machine. The method of this activity was Participatory Rural Appraisal involving enlightenment, demonstration, and partnership in using of drum washing machine to group of farmer and seaweed cultivator on Tegalsari village, Jabon area, Sidoarjo district. The result showed that partner followed enthusiastically the enlightenment, demonstration, and partnership. The quality of dry seaweeds that washed by drum machine was rise and included in product criteria of Indonesia National Standard. The yield of dry seaweeds increased to 17.5% and the gel strength of agar-agar was higher six times and also the selling price expanded to 42% or Rp 2,500.- each kilograms. The conclusion is using drum washing machine able to increase the quality and selling price of dry seaweeds and move the increasing of prosperity of seaweed farmer and dry seaweeds cultivators.Keywords: drum washing machine, Gracilariasp, postharvest, quality, selling price. 
POTENSI EKONOMI DAN ARAHAN PENGEMBANGAN PEREKONOMIAN WILAYAH DI DESA-DESA PENYANGGA TAMAN NASIONAL UJUNG KULON Mulyawan, Tb Iwan; Barus, Baba; Firdaus, Muhamad
Jurnal Ilmu Tanah dan Lingkungan Vol 17 No 1 (2015): Jurnal Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (711.635 KB) | DOI: 10.29244/jitl.17.1.25-32

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Kecamatan Sumur dan Kecamatan Cimanggu merupakan wilayah penyangga Taman Nasional Ujung Kulon (TNUK). Berdasarkan RTRW Kabupaten Pandeglang 2013, kedua wilayah tersebut diperuntukkan sebagai pusat pengembangan perdagangan dan jasa. Pada kenyataannya masih terkendala dengan keterbatasan infrastruktur. Kondisi ini menjadi permasalahan utama dari rencana pengembangan wilayah yang telah ditetapkan. Penelitian ini bertujuan: (1) Menganalisis hierarki wilayah berdasarkan aksesibilitas dan jumlah fasilitas per desa; (2) Menganalisis sektor unggulan yang mendukung pengembangan wilayah; (3) Menyusun arahan program pengembangan perekonomian di Kecamatan Sumur dan Kecamatan Cimanggu. Hasil penelitian menunjukkan bahwa analisis skalogram mengindikasikan beberapa desa penyangga TNUK, yaitu terdapat dua belas yang termasuk hierarki III. Dari desa-desa yang termasuk hierarki III terdapat lima desa yang memiliki penduduk prasejahtera tinggi (79.9% - 87.8%). Selanjutnya terdapat enam desa yang termasuk hierarki II, sedangkan satu desa berada pada Hierarki I. Sektor unggulan di Kecamatan Sumur adalah pertanian, peternakan, perikanan dan pariwisata. Sektor unggulan di Kecamatan Cimanggu adalah pertanian, peternakan, dan perkebunan. Adapun arahan pengembangan wilayah di Kecamatan Sumur adalah perikanan dan pariwisata, program penerapan teknologi perikanan, pembangunan pelabuhan/darmaga, pembangunan kantor lembaga keuangan, sarana, dan prasarana wisata, sedangkan arahan pengembangan di Kecamatan Cimanggu adalah pertanian dan perkebunan, program penerapan teknologi pertanian. Kata kunci: Pengembangan wilayah, hierarki wilayah, Pandeglang, potensi wilayah penyangga TNUK