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TOKSISITAS AKUT EKSTRAK METANOL RUMPUT LAUT COKELAT Sargassum echinocarpum Muhamad Firdaus; Made Astawan; Deddy Muchtadi; Tutik Wresdiyati; Sarwono Waspadji; Setyawati S Karyono
Jurnal Pengolahan Hasil Perikanan Indonesia Vol 15 No 2 (2012): Jurnal Pengolahan Hasil Perikanan Indonesia
Publisher : Department of Aquatic Product Technology IPB University in collaboration with Masyarakat Pengolahan Hasil Perikanan Indonesia (MPHPI)

The aim of this study was to evaluate acute toxicity of methanol extract of Sargassum echinocarpum on male and female of mice (Mus musculus) strain BALB/c two month age. S. echinocarpum was obtained from Talango Island in April 2008. The powder of S. echinocarpum was macerated by methanol (1:3) at 4 °C for 3 x 24 hours, then concentrated, dried, and extracted. The extract was screened to observe the phytochemical compounds. For acute toxicity extracts was given orally and once on one hour before feeding. The dose treatments were 0; 625; 1250; 2500; and 5000 mg/kg body weight (BW). Parameters measured were phytochemical contain, body weight during the study, 50 percent of lethal doses, and histology score of liver and kidney. The phytochemical study showed that methanol extract of S. echinocarpum contained tannins, polyphenols, saponins, glycosides, and steroids. On 1250 mg/kg BW or more, methanol extract of S. echinocarpum inhibited the increasing of body weight on mice, but, until 5000 mg/kg BW, it did not cause mortality on mice. On 1250 mg/kg BW or more, methanol extracts caused necrosis on hepatocyt and tubulus.Key words: acute toxicity, methanol extract, Sargassum echinocarpum

Increasing The Quality Of Dry Seaweeds By Drum Washing Machine Muhamad Firdaus
Journal of Innovation and Applied Technology Vol 1, No 2 (2015)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Brawijaya

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.

Penerapan Model Pembelajaran Kooperatif Tipe Numbered Head Together (NHT) Ditinjau dari Aktivitas Belajar Siswa Kelas VIII SMP Muhamad Firdaus
Formatif: Jurnal Ilmiah Pendidikan MIPA Vol 6, No 2 (2016): Formatif: Jurnal Ilmiah Pendidikan MIPA
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/formatif.v6i2.942

The purpose of this study was to find out the results belejar junior high school students after application of cooperative learning model NHT the terms of the learning activities. Forms of research is quasy Experiment with the design of a 1x3 factorial design. The population in this study were all students of class VIII SMP Negeri 1, while the sample is a class VIII-D randomly selected using random cluster sampling technique. Data collection tool used is a test instrument that consists of four essay and activity questionnaire consisting of 23 questions. Based on analysis test, one way ANOVA with different cells obtained by (1) the learning outcomes of students with high activity category as well as students with moderate activity category. (2) the learning outcomes of students with moderate activity category better with students with low activity category. (3) the learning outcomes of students with high activity category better with students with low activity category. Keywords: Cooperative learning NHT type, learning activities

Pelatihan Pembuatan Media Pembelajaran Masa Pandemi Covid-19 di SMA Negeri 3 Sungai Kakap Muhamad Firdaus; Yudi Darma; Utin Desy Susiaty; Yadi Ardiawan; Abdillah Abdillah
GERVASI: Jurnal Pengabdian kepada Masyarakat Vol 6, No 3 (2022): GERVASI: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM IKIP PGRI Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31571/gervasi.v6i3.3949

Tujuan dari kegiatan pengabdian adalah untuk meningkatkan pengetahuan dan kemampuan guru dalam memilih dan menggunakan metode pembelajaran matematika secara online yang inovatif dan menyenangkan sehingga memudahkan siswa dalam belajar matematika. Kegiatan PKM dilaksanakan di SMA Negeri 3 Sungai Kakap Kabupaten Kubu Raya Kalimantan Barat dengan peserta berjumlah 22 orang dan pelaksana PKM adalah dosen prodi Pendidikan matematika IKIP PGRI Pontianak yang berjumlah 5 orang. Metode pelaksanaan kegiatan PKM ini dilakukan dengan mengadopsi langkah-langkah action research yaitu: perencanaan tindakan, observasi dan evaluasi, dan refleksi. Hasil PKM dapat disimpulkan yaitu meningkatnya pengembangan dan penggunaan media pembelajaran secara online, sehingga memudahkan dan menyenangkan siswa dalam belajar yang pada akhirnya dapat meningkatkan hasil belajar matematika.

Analisis Kemampuan Literasi Numerasi Matematis Siswa pada Materi Matriks Ditinjau dari Self-Efficacy Ambarwati, Estira Dewi; Utin Desy Susiaty; Muhamad Firdaus
Indo-MathEdu Intellectuals Journal Vol. 4 No. 3 (2023): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v4i3.449

The aim of this research is to determine students' mathematical numeracy literacy skills in matrix material in terms of the self-efficacy of class XI IPA 3 SMA Negeri 1 Simpang Hilir, totaling 28 students. Of the 28 students, they will be categorized based on each student's abilities. This research began by providing a self-efficacy questionnaire, a test of numeracy literacy skills, and interviews to categorize students' ability levels. After this, it was continued with analyzing and categorizing based on self-efficacy and level of numeracy literacy skills to determine the research subjects who would be interviewed by selecting 9 subjects. The results of the research concluded that students who have high self-efficacy meet 3 indicators, namely using various kinds of numbers and symbols related to basic mathematics to solve problems in various contexts of daily life, analyzing information displayed in various forms (graphs, tables, sections, diagrams, and so on), and interpret the results of the analysis to predict and make decisions. Students who have moderate self-efficacy meet 2 indicators, namely using various kinds of numbers and symbols related to basic mathematics to solve problems in various contexts of daily life, analyzing information displayed in various forms (graphs, tables, sections, diagrams, etc). Students who have low self-efficacy only meet 1 indicator, namely using a wide variety of numbers and symbols related to basic mathematics to solve problems in various contexts of daily life.

Implementasi Kebijakan Penuntasan Buta Aksara Al-Qur’an Di Kecamatan Meral Barat Kabupaten Karimun Muhamad Firdaus; Agus Hendrayady; Okparizan Okparizan
Perkara : Jurnal Ilmu Hukum dan Politik Vol 1 No 3 (2023): September : Jurnal Ilmu Hukum dan Politik
Publisher : Universitas Sains dan Teknologi Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51903/perkara.v1i3.1313

The Al-Qur'an Literacy Completion Policy is a policy that aims to change people's attitudes or behavior. There are still many obstacles to the implementation of the Al-Qur'an illiteracy eradication policy, therefore the support from related parties is needed. The purpose of this study was to find out the implementation of the district head's decree no 123 A of 2006. The informants in the study were parties involved in implementing the Al-Qur'an illiteracy policy, teachers and the community as parents of the Santri in Meral Barat District. Data analysis techniques in this study using triangulation techniques. The results of this study are seen from the dimensions of the content of the policy, the formation of this policy on the basis of meeting the needs of the community and the local government's concern for changing people's behavior and making people good at reading, understanding and practicing the contents of the Al-Qur'an. This policy is considered appropriate to be implemented in Karimun which is cultured with Malay. Human resources and infrastructure then influence the implementation of this policy. From the analysis of the environmental dimensions of the policy, the program implementers are trying to overcome every obstacle, even though it is not yet optimal, such as diverting study hours for Santri as needed and making other religious programs. So, the characteristics of the BMPG-TPQ of West Meral District is an institution under the supervision of the BMPG-TPQ of Karimun Regency which handles the management of TPQ in Karimun Regency.

HAMBATAN SISWA DALAM MENYELESAIKAN SOAL MATERI SISTEM PERSAMAAN LINEAR DUA VARIABEL (SPLDV) BERDASARKAN KEMAMPUAN PEMECAHAN MASALAH PADA SISWA KELAS VIII SMP NEGERI 1 SUNGAI KAKAP Winda Winarti; Muhamad Firdaus; Hartono Hartono
Student Scientific Creativity Journal Vol. 1 No. 1 (2023): Januari: Student Scientific Creativity Journal
Publisher : Pusat Riset dan Inovasi Nasional

This study aims to describe students' learning barriers in solving SPLDV questions based on problem solving abilities. This research uses descriptive qualitative research, and the sampling technique uses purposive sampling technique. This research was conducted at Sungai Kakap 1 Public Middle School, the data used were the results of researchers to clarify students' obstacles in answering questions based on problem-solving abilities with data sources, namely class VIII students of SMP 1 Sungai Kakap. Data collection techniques used measurement techniques, direct communication techniques and indirect communication techniques with data collection tools in the form of test questions, interview guides and documentation. The data analysis techniques used are data reduction, data presentation, and drawing conclusions. In this study it was concluded that the students' barriers in the high group were wrong in determining the formula and wrong in the concept of completion, the students' barriers in the medium group were wrong in determining the formula, discrepancies in using the formula to answer a problem and did not re-examine the answers, and student barriers in the low group were unable to determine the formula and solve the problem on the question then also did not re-check the answer after completing the given question.

Implementasi Kebijakan Penuntasan Buta Aksara Al-Qur’an Di Kecamatan Meral Barat Kabupaten Karimun Muhamad Firdaus; Agus Hendrayady; Okparizan Okparizan
Perkara : Jurnal Ilmu Hukum dan Politik Vol. 1 No. 3 (2023): September : Perkara: Jurnal Ilmu Hukum Dan Politik
Publisher : Universitas Sains dan Teknologi Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51903/perkara.v1i3.1313

The Al-Qur'an Literacy Completion Policy is a policy that aims to change people's attitudes or behavior. There are still many obstacles to the implementation of the Al-Qur'an illiteracy eradication policy, therefore the support from related parties is needed. The purpose of this study was to find out the implementation of the district head's decree no 123 A of 2006. The informants in the study were parties involved in implementing the Al-Qur'an illiteracy policy, teachers and the community as parents of the Santri in Meral Barat District. Data analysis techniques in this study using triangulation techniques. The results of this study are seen from the dimensions of the content of the policy, the formation of this policy on the basis of meeting the needs of the community and the local government's concern for changing people's behavior and making people good at reading, understanding and practicing the contents of the Al-Qur'an. This policy is considered appropriate to be implemented in Karimun which is cultured with Malay. Human resources and infrastructure then influence the implementation of this policy. From the analysis of the environmental dimensions of the policy, the program implementers are trying to overcome every obstacle, even though it is not yet optimal, such as diverting study hours for Santri as needed and making other religious programs. So, the characteristics of the BMPG-TPQ of West Meral District is an institution under the supervision of the BMPG-TPQ of Karimun Regency which handles the management of TPQ in Karimun Regency.

PENGEMBANGAN GAME EDUKASI MATEMATIKA BERBASIS ANDROID MENGGUNAKAN SOFWARE CONSTRUCT 2 TERHADAP KEMAMPUAN PEMAHAMAN MATEMATIS Rosa Yuliana; Muhamad Firdaus; Dwi Oktaviana
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 1 No. 1 (2022): April : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Lembaga Pengembangan Kinerja Dosen

The research method used in this research is Research and Development. The subjects in this study consisted of validation subjects consisting of material and media validators and test subjects consisting of 23 grade VII junior high school students. The research was conducted at SMP Negeri 10 Sungai Kakap. The instruments used in the study consisted of expert validation sheets, respondent questionnaires, and tests of mathematical understanding abilities. The purpose of this study was to determine the process of developing an Android-based math educational game using software construct 2 on mathematical abilities. The results of the study are as follows: The level of feasibility of an Android-based math education game using software construct 2 on the ability to understand the results obtained is 88.66% with very feasible criteria. The level of attractiveness of an Android-based math education game using software construct 2 on the ability to understand the results obtained is 88.19% with very interesting criteria. Improved mathematical understanding skills after the application of Android-based math education games. There is an increase From the calculation results obtained tcount> ttable = 8.85987> 1.71714, thus Ho is rejected Ha accepted.

Pengembangan Media Truth Or Dare Math Berbasis Strategi Heuristik Terhadap Kemampuan Pemecahan Masalah dalam Materi Peluang pada Siswa Kelas VIII SMP Negeri 1 Parindu Norita Esra Yanti Sinaga; Iwit Prihatin; Muhamad Firdaus
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 1 No. 2 (2022): Oktober : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v1i2.576

Penelitian ini bertujuan untuk menghasilkan media pembelajaran Truth Or Dare Math berbasis strategi heuristik dalam materi peluang pada siswa kelas VIII SMP Negeri 1 Parindu yang mencapai tingkat kevalidan, kepraktisan, dan keefektifan. Penelitian ini menggunakan model rancangan pengembangan 4D, yang terdiri atas define (pendefinisian), design (perancangan), development (pengembangan), dan disseminate (penyebaran). Subjek dalam penelitian ini adalah siswa kelas VIII-1 SMP Negeri 1 Parindu sebanyak 30 orang siswa. Instrumen yang digunakan dalam penelitian ini adalah lembar validasi, angket, dan soal Posttest. Berdasarkan hasil penelitian pengembangan truth or dare math berbasis strategi heuristic terhadap kemampuan pemecahan masalah dalam materi peluang pada siswa kelas VIII SMP Negeri 1 Parindu tergolong valid, praktis, dan efektif untuk digunakan.

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