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All Journal Harmoni Sosial: Jurnal Pendidikan IPS Jurnal Pendidikan dan Pembelajaran Kimia (JPPK) JAWI : Journal of Southeast Asia Islamic Contemporary Issues KOVALEN: Jurnal Riset Kimia Jurnal Pendidikan Kimia FKIP Universitas Halu Oleo Akta Kimia Indonesia Chemistry Indonesian Journal of Chemical Research JURNAL PENDIDIKAN TAMBUSAI Khatulistiwa: Journal of Islamic Studies Hydrogen: Jurnal Kependidikan Kimia Jurnal Paris Langkis Sains: Jurnal Kimia & Pendidikan Kimia Jurnal Sains dan Kesehatan Jurnal Pendidikan Progresif
La Rudi
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Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Social Sciences

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Identifikasi dan Uji Aktivitas Antioksidan Senyawa Metabolit Sekunder Ekstrak Tanaman Cleome viscosa L: Identification and Antioxidants Activity Tests of Secondary Metabolite Compounds of Clome viscosa L. Plant Extracts Imran; Laily Nurliana; Muh. Natsir; Nohong; La Ode Abd Kadir; La Rudi; Ruslan; Thamrin Azis
KOVALEN: Jurnal Riset Kimia Vol. 9 No. 1 (2023): April Edition
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2023.v9.i1.16340

Abstract

Cleome viscosa L. has been used empirically by people on the island to treat diseases that have clinical symptoms such as malaria (fever, sweating, chills, and muscle aches). The purpose of this study was to determine the class of secondary metabolites and antioxidant activity. The extraction was carried out using the maceration method, while the fractionation was carried out using the separating funnel. The secondary metabolites found in the Cleome viscosa L. plant extract are alkaloids, flavonoids, steroids, terpenoids, tannins, and saponins. Antioxidant test conducted by DPPH method showed that the positive control of ascorbic acid and methanol extract obtained IC50 values of 3.86 ppm and 37.4 ppm, respectively.
Penentuan Kadar NPK (Nitrogen, Fosfor dan Kalium) dari Pelepah Aren (Arenga Pinnata M.) Hesti; Rahmanpiu; La Rudi
Sains: Jurnal Kimia dan Pendidikan Kimia Vol. 12 No. 1 (2023): EDISI JUNI 2023
Publisher : Jurusan Pendidikan Kimia FKIP Universitas Halu Oleo, Jl. HEA. Mokodompit Kampus Hijau Bumi Tridharma Andounohu Kendari, Gedung MIPA FKIP UHO Sulawesi Tenggara – Indonesia

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Abstract

Research has been carried out to determine the levels of NPK (Nitrogen, Phosphorus and Potassium) in the palm fronds (Arenga pinnata M.). Palm fronds can be used as a growing medium. One indicator of a material that can be used as a growing medium is the availability of nutrients. So the purpose of this study was to determine the feasibility of the palm midrib (Arenga pinnata M.) to be used as a growing medium. The method used to determine the levels of NPK (Nitrogen, Phosphorus and Potassium) used a different method. Determination of nitrogen content was determined using the Kjeldahl method, phosphorus using the UV-Vis Spectrophotometer method and potassium using the Atomic Absorption Spectrophotometer method. Based on the results of research conducted, on the palm fronds, the results obtained with nitrogen levels of 0.171%, Phosphorus of 1.826% and Potassium of 0.0022%. From the results of these studies that meet the requirements as a planting medium is Phosphorus so that the palm fronds can be recommended to be used as a planting medium.
Efektivitas Penerapan LKPD Berbasis Problem Based Learning terhadap Hasil Belajar Siswa Kelas X MIA pada Materi Hakikat Ilmu Kimia Sari Novi Delpia; Muhammad Alim Marhadi; La Rudi
Sains: Jurnal Kimia dan Pendidikan Kimia Vol. 12 No. 2 (2023): EDISI DESEMBER 2023
Publisher : Jurusan Pendidikan Kimia FKIP Universitas Halu Oleo, Jl. HEA. Mokodompit Kampus Hijau Bumi Tridharma Andounohu Kendari, Gedung MIPA FKIP UHO Sulawesi Tenggara – Indonesia

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Abstract

This study aims to determine the description of student learning outcomes with the application of problem-based learning LKPD in class X MIA on the subject of the nature of chemistry, determine the effectiveness of problem-based learning LKPD in class X MIA on the subject of the nature of chemistry and student responses to the application of problem-based learning LKPD on the subject of the nature of chemistry. The subjects in this study were X MIA class students consisting of 18 students with 2 male students and 16 female students. The design in this study used a One-group Pretest Posttest Design research design. Data collection techniques were carried out by giving research instruments in the form of pretest and posttest questions and student response questionnaires. The results of this study indicate that the average initial test is 35.56% and the final test is 84.17%, the application of PBL-based LKPD is very effective in improving the learning outcomes of students in class X MIA SMAN 1 Anggaberi which is indicated by the average Ngain of 0.75. The overall percentage of student responses to the use of problem-based learning-based LKPD is 81.2% or in the very good category
Application of cooperative learning type Quick on the Draw on buffer solution material to improve learning outcomes of Class XI students Rudi, La; Widiyanto, Brian Tri; Saefuddin, Saefuddin; Esnawi, Esnawi
Jurnal Pendidikan dan Pembelajaran Kimia Vol 12, No 3 (2023): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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Abstract

This research aims to determine student learning outcomes, determine effectiveness and determine student responses to the quick on the draw type cooperative learning model on buffer solution material. The sample of this research was class XI MIPA 3 students using simple random sampling. The method used is quasi-experimental with a Randomized Control Group Pretest-Posttest Design. From the research results, it was found that the learning outcomes of students who were taught using the quick on the draw type cooperative learning model on buffer solution material were obtained on average 79.68 while the control class was 77.42 with completeness of learning outcomes based on the KKM score of 83.9% for the experimental and 61.74% for the control class. Based on the analysis of the N-gain value, it was found that the quick on the draw learning model was effective for use in buffer solution material, this was because the N-gain value for the experimental class reached the high category of 35% while the control class was 19%. The results of the analysis of student response questionnaires showed that 68% of students said they were very interested in the quick on the draw learning model because learning was more fun, and 87% of students were very motivated in learning. DOI: 10.23960/jppk.v12.i3.23.11 
Studi Variasi Konsentrasi NaOH dan H2SO4 Untuk Memurnikan Silika Dari Abu Sekam Padi Sebagai Adsorben Ion Logam Pb2+ dan Cu2+ Harimu, La; Rudi, La; Haetami, Aceng; Santoso, Giswa Ayu Pratiwi; ., Asriyanti
Indonesian Journal of Chemical Research Vol 6 No 2 (2019): Edisi Bulan Januari (Edition For January)
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2019.6-lah

Abstract

A study of variations in the concentration of NaOH and H2SO4 to purify silica from rice husk ash and its application as adsorbent of Pb2+ and Cu2+ Metal Ions. The NaOH concentrations used were 8%, 9%, 10%, 11%, 12% and 13% and H2SO4 concentrations were 5.4%, 8.16%, 10.88%, and 13.61%. The process of adsorption of Pb2+ and Cu2+ metal ions was carried out at pH (3, 4, 5, 6) and silica masses. The results showed the silica yield obtained in the form of white powder. The highest silica content at 12% NaOH concentration of 41.81% with a purity of 89.09% and H2SO4 concentration is 10.88% at 65.39% with a purity of 94.94% initial content 86.02%. The results of surface structure characterization using Scanning Electron Microscope (SEM) average size of particle diameter was 0.030 µm. Optimal adsorption process of Pb2+ and Cu2+ metal ions using silica from rice husk occurred at pH 6 and the adsorbent mass was 0.3 gram, the adsorption efficiency was 98% and 86.25% respectively with adsorption capacity of 0.96 mg/g for metal Pb2+ and 0.83 mg/g for Cu2+ metals.
ANALISIS PENGARUH TINGKAT KELAHIRAN DI DESA KARAE KECAMATAN SIOMPU KABUPATEN BUTON SELATAN Masdiana; Silvia; Arni Fauzia Rante; La Rudi; Mimil Azmil; Said Karamaullah; Risman, Kadar
Jurnal Paris Langkis Vol 5 No 1 (2024): Edisi Agustus 2024
Publisher : PPKn, Fakultas Keguruan dan Ilmu Pengetahuan Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/paris.v5i1.15532

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh tingkat pendidikan, usia kawin pertama, pendapatan keluarga, dan jam kerja terhadap fertilitas pasangan usia subur di Desa Karae, Kecamatan Siompu, Kabupaten Buton Selatan. Penelitian ini menggunakan metode kuantitatif dengan pendekatan regresi linier berganda untuk mengevaluasi pengaruh simultan dan parsial dari variabel-variabel independen terhadap variabel dependen. Data yang digunakan merupakan data primer yang diolah menggunakan SPSS versi 2024.Hasil penelitian menunjukkan bahwa secara simultan, variabel tingkat pendidikan, usia kawin pertama, pendapatan keluarga, dan jam kerja memiliki pengaruh signifikan terhadap fertilitas dengan nilai F sebesar 4.219 dan signifikansi 0.004. Namun, secara parsial, hanya variabel jam kerja yang memiliki pengaruh signifikan terhadap fertilitas, dengan koefisien regresi sebesar -0.743 dan nilai signifikansi 0.012. Variabel tingkat pendidikan, usia kawin pertama, dan pendapatan keluarga tidak menunjukkan pengaruh signifikan secara individual, dengan nilai signifikansi masing-masing sebesar 0.438, 0.547, dan 0.796. Koefisien determinasi (R²) sebesar 0.172 menunjukkan bahwa 17.2% variasi dalam fertilitas dapat dijelaskan oleh variabel-variabel independen yang diteliti, sementara 82.8% variasi dijelaskan oleh faktor-faktor lain di luar model. Kesimpulan dari penelitian ini adalah bahwa meskipun variabel-variabel independen secara bersama-sama mempengaruhi fertilitas, hanya variabel jam kerja yang memiliki pengaruh signifikan secara parsial. Hasil ini mengindikasikan perlunya mempertimbangkan faktor-faktor lain yang mungkin mempengaruhi fertilitas selain variabel-variabel yang diteliti dalam penelitian ini.
Development of Interactive Learning Media Based on a 2-Dimensional Virtual Laboratory on Electrochemical Materials Joko, Neneng Andriani; Rudi, La; Arsyad, Muhammad
Hydrogen: Jurnal Kependidikan Kimia Vol 13, No 1 (2025): February 2025
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v13i1.14853

Abstract

This study aims to analyze the feasibility of interactive learning media based on a 2D virtual laboratory for electrochemistry material and to examine students' responses to its use. The media was designed as a solution to address the limitations of laboratory equipment and materials often encountered in schools. The research method employed was Research and Development (R&D) using the ADDIE development model (Analysis, Design, Development, Implementation, Evaluation). The media’s validity was analyzed using Aiken’s V content validity, involving three expert validators. The results of the analysis indicated a validity score of 0.86, which falls into the high category, demonstrating that the media is feasible for use. Student responses to the media were also analyzed, yielding an overall quality percentage of 75.98%, classified as good. Based on these findings, the learning media is considered effective and applicable in the teaching and learning process for electrochemistry materials to enhance students' conceptual understanding and practical skills.
Maritime Character Learning Traditions in the Wakatobi Communities Rudi, La; Hanum, Farida; Wahyono, Sugeng B
JURNAL JAWI Vol 7 No 1 (2024): Islam and Maritime Culture
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/00202372144000

Abstract

One of the paradigms for looking at character or personality is culture. This paradigm sees character not only influenced by culture but shaped by culture itself. This affirms that the character of society is dynamic, it will always differ depending on the cultural context that forms it. This article aims to elaborate on the tradition of character learning in maritime society. The source of the data is the result of ethnographic studies in Wakatobi Regency. Data collection was carried out by depth interviews, participant observation, and literature review. The results showed that the distinctive character of marine communities that are tough, hardworking, unyielding, honest, responsible, and friendly to nature, is not formed naturally. Nautical character is shaped by a cultural environment full of challenges and risks, however life in the sea is related to matters of life and death. There are four stages of character learning tradition in nautical society, namely: character learning through prospective sailors, chefs, mustards, and masters. The four stages are an interrelated process, which shows the importance of character building in maritime culture.
Peningkatan Literasi Jurnalistik pada Mahasiswa STKIP pelita Nusantara Buton melalui Pelatihan Penulisan Berita (Buton Pos Kota Baubau) Karim, Karim; Rizal, Rizal; Hanisu, Hanisu; Setiawan, Wa Ode Nining; Darmawansyah, Tely; Rudi, La
Jurnal Pendidikan Tambusai Vol. 9 No. 2 (2025): Agustus
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v9i2.31102

Abstract

Tujuan kegiatan PkM ini adalah untuk meningkatkan pemahaman dan keterampilan menulis jurnalistik terhadap mahasiswa pendidikan STKIP Pelita Nusantara Buton melalui pelatihan penulisan berita. Melalui pelatihan ini, siswa diharapkan mendapatkan pengalaman praktis dan pemahaman yang lebih mendalam tentang prinsip-prinsip jurnalistik. Selain itu, kegiatan ini juga bertujuan untuk menginspirasi mahasiswa dalam mengeksplorasi potensi karier di bidang jurnalistik dan bidang terkait. Metodologi yang digunakan meliputi tahap persiapan, inti, dan akhir. Tahap persiapan meliputi survei, perolehan izin, dan pelaksanaan wawancara. Tahap inti terdiri dari pra-tes, penyampaian materi, diskusi, dan pasca-tes. Tahap akhir meliputi evaluasi dan presentasi hasil. Hasilnya menunjukkan peningkatan yang signifikan dalam pemahaman dan keterampilan mahasiswa dalam menulis berita. Skor pasca-tes menunjukkan peningkatan pemahaman yang substansial, dengan sebagian besar mahasiswa mencapai skor di atas 90&%, yang mencerminkan tingkat pemahaman dan penerapan yang tinggi terhadap prinsip-prinsip jurnalistik yang diajarkan.
Character Building Tradition in Maritime Shipping (Study at the Sailing Community in Binongko-Wakatobi Island) Rudi, La; Hanum, Farida; B. Wahyono, Sugeng
Khatulistiwa Vol 11, No 1 (2021)
Publisher : The Pontianak State Institute of Islamic Studies

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24260/khatulistiwa.v11i1.2124

Abstract

This study aimed to describe the tradition of character building in maritime shipping. The source of the data was the result of ethnographic studies on the sailor community on Binongko Island, Wakatobi Regency. The main instrument in research was researchers, data collection was done through in-depth interviews, participant observation, and document analysis. The results of the study indicated that in the maritime shipping of sailors Binongko-Wakatobi is known for four stages of the character building tradition, namely; (1) providing moral knowledge through prospective sailors; (2) moral inspiration through the role of a koki, (3) moral actions played by sawi; and (4) role models played by juragan. The four stages were interrelated cycles that showed the value of the character's urgency both in maritime shipping. In addition, it is known that the typical character of Binongko sailors who are generally tough, patient, hardworking, unyielding, honest, simple, responsible, and friendly to nature, were formed through the tradition of maritime shipping. Character building interactions occur in oceanic spaces, a means of character building is a traditional boat, while the learning media are marine objects such as; waves, wind and coral.
Co-Authors ., Asriyanti Abd. Rasyid Syamsuri Abraham Rahman Aceng Haetami, Aceng Arham, Laode Arman Arman Arni Fauzia Rante Arwien, Rizki Trisnawaty Asria Asria Azmil, Mimil B. Wahyono, Sugeng Darmawansyah, Tely Esnawi, Esnawi Fahyuddin Fahyuddin, Fahyuddin Farida Hanum Fitriyanti Fitriyanti Hanisu, Hanisu Hesti Husain Haikal I Gusti Bagus Wiksuana Imran Joko, Neneng Andriani Karim Karim, Karim La Harimu La Ode Abd Kadir Laily Nurliana Marhadi, M. Alim Marhadi, Muh Alim Marhadi, Muh. Ali Masdiana Masdiana Mimil Azmil Muh. Natsir Muhammad Alim Marhadi Muhammad Arsyad Muhammad Arsyad Muhammad Rivai Muna Erna Wati Murlia, Sitti Murlia, Sitti Musta, Rustam Nohong Nurdin, Widhi Mulya Nurmiati, Euis Nurpila, Nurpila Rahman, Abraham Rahmanpiu Rante, Arni Fauziah Risman, Kadar Rizal Rizal Ruslan Saefuddin Saefuddin Said Karamaullah Santoso, Giswa Ayu Pratiwi Sari Novi Delpia Setiawan, Wa Ode Nining Setiyawan, Wa Ode Nining Shuid, Ahmad Naqib bin Silvia Solly Aryza THAMRIN AZIS Wahyono, Sugeng B Widiyanto, Brian Tri