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<![CDATA[Perbedaan Keterampilan Berpikir Kritis Siswa Melalui Penerapan Media Pembelajaran Laboratorium Virtual Pada Konsep Sistem Pernapasan Manusia Di SMA Negeri Unggul Sigli ]]>
<![CDATA[Teuku Musreza Fonna]]>;
<![CDATA[Adlim Adlim]]>;
<![CDATA[Muhammad Ali S]]>
<![CDATA[ Biotik Vol 1, No 2 (2013): Jurnal Biotik ]]>
Publisher : <![CDATA[Universitas Islam Negeri Ar-Raniry ]]>
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DOI: 10.22373/biotik.v1i2.223
<![CDATA[Penelitian ini bertujuan untuk mengetahui perbedaan keterampilan berpikir kritis siswa melalui pembelajaran konvensional dan penggunaan media laboratorium laboratorium virtual pada konsep sistem pernapasan manusia. Metode yang digunakan adalah metode eksperimen dengan rancangan pretest-postest control group design. Sampel penelitian adalah siswa kelas XI semester dua berjumlah 50 orang siswa SMA yaitu 25 orang kelas XI.A dan 25 orang kelas XI.B di SMA Negeri Unggul Sigli Kabupaten Pidie. Pembelajaran di kelas eksperimen dilakukan dengan menggunakan media (software) virtual lab, sedangkan kelas kontrol diterapkan pembelajaran konvensional dan masing-masing kelas digunakan model Pembelajaran Langsung. Efektifitas penerapan Laboratorium virtual terhadap keterampilan berpikir kritis dianalisis dengan menggunakan tes berupa uraian yang dilakukan dengan uji-t (Independent Samples t-Test). Hasil penelitian menunjukkan bahwa thit. 5,507 > ttab. 2,011. Dengan demikian, terdapat perbedaan yang signifikan penerapan pembelajaran dengan menggunakan media laboratorium virtual terhadap keterampilan berpikir kritis siswa pada konsep sistem pernapasan manusia. Kata Kunci: Keterampilan Berpikir Kritis, Laboratorium Virtual, dan Sistem Pernapasan Manusia This research aims to determine the differences in critical thinking skills of students who taking conventional learning and virtual labs on the concept of the human breathing system. The method used is an experimental method by design pretest-posttest control group design. The research population is high school students at class XI in the second semester of school time. Two classes with 25 students each were chosen purposively for experiment and control class. The experimental classed was taught by using learning media of virtual laboratory software, while the control class was taught with conventional learning and both classes were applied the Direct Instruction Model. Pretest and posttest on critical thinking skills and cognitive learning outcomes of the students in both classes were compared and analyzed by using a test; essay and multiple-choice performed with t-test (Independent Samples t-Test). The results showed that there was significant improvement of critical thinking skills (tcount 5, 507 > ttable 2,011) students that learned through media of virtual laboratory software. Thus, there is a significant difference in the application of virtual laboratory software on students' critical thinking skills on the concept of the human breathing system. Keywords: Critical Thinking Skills, Virtual Laboratory, and The Human Breathing System]]>
<![CDATA[Implementation of STEM-based Student Worksheet to Increase Student Entrepreneurial Innovation through the Development of Candied Nutmeg Products ]]>
<![CDATA[Dara Sasmita]]>;
<![CDATA[Muhammad Adlim]]>;
<![CDATA[Abdul Gani]]>;
<![CDATA[Muhammad Syukri]]>
<![CDATA[ Jurnal Penelitian Pendidikan IPA Vol. 7 No. 1 (2021): January ]]>
Publisher : <![CDATA[Postgraduate, University of Mataram ]]>
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DOI: 10.29303/jppipa.v7i1.551
<![CDATA[The research has been carried out to develop STEM based Student Worksheets to determine their effectiveness in increasing students' entrepreneurial innovation through the development of candied nutmeg products and the responses of teachers and students to Student Worksheet. The research was conducted using the research and development (R & D) method using the ADDIE model. The sample in this study were 34 students of class XI IPA 1, selected using random sampling technique. The research data were obtained from expert assessment sheets, Student Worksheet and questionnaires for teachers and students. The results of the STEM-based Student Worksheet feasibility test by the experts showed that the Student Worksheet eveloped was classified as very worthy, with an average percentage value of 94.17%. The percentage of Yes responses obtained from teachers and students was 100.00% and 92.06% in the very good category. Based on the results of the study, it can be concluded that the developed STEM based Student Worksheet can increase students' entrepreneurial innovation and can be used as an alternative teaching material in craft and entrepreneurship materials, and get positive responses from teachers and students.]]>
<![CDATA[A RANDOMIZED CONTROLLED TRIAL ON THE ISLAMIC-BASED PROGRAM USING FAMILY APPROACHES IN PREVENTING ADOLESCENTS’ SMOKING BEHAVIOR IN INDONESIA: A STUDY PROTOCOL ]]>
<![CDATA[Fithria Fithria]]>;
<![CDATA[Muhammad Adlim]]>;
<![CDATA[Syarifah Rauzatul Jannah]]>;
<![CDATA[Teuku Tahlil]]>
<![CDATA[ Belitung Nursing Journal Vol. 6 No. 4 (2020): July - August ]]>
Publisher : <![CDATA[Belitung Raya Foundation, Indonesia ]]>
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DOI: 10.33546/bnj.1112
<![CDATA[Background: Smoking is a significant problem especially among Indonesian adolescents. A number of smoking prevention programs have been developed and implemented, but most of them do not work significantly for the Indonesian adolescents who are mostly Muslim. Objective: The aim of this article is to outline a study protocol for measuring the effects of Islamic-based program using family approaches on the prevention of adolescents’ smoking behavior. Methods: The study will use a cluster randomized controlled trial conducted in three junior high schools, in Aceh Province, Indonesia. A total of 150 students will be involved in this study, where each school will be represented by 50 students. Each school group will be given the respective treatments. The first group will receive health-based intervention program, the second group will receive Islamic-based intervention program, and the last group will act as a control group receiving no intervention. The outcomes include the knowledge about smoking, attitudes toward smoking, smoking intention and smoking behavior of the adolescents. All outcomes will be measured using validated questionnaires. Discussion: If the Islamic-based intervention using family approach is effective, then this approach could be implemented not only in Indonesia but also in other countries with the same social characteristics. Trial registration: Australian New Zealand Clinical Trial Registry, ACTRN 12620000465954]]>
<![CDATA[PREPARATION OF CHITOSAN-GOLD NANOPARTICLES: PART 2. THE ROLE OF CHITOSAN ]]>
<![CDATA[Adlim Adlim]]>;
<![CDATA[Mohamad Abu Bakar]]>
<![CDATA[ Indonesian Journal of Chemistry Vol 8, No 3 (2008) ]]>
Publisher : <![CDATA[Universitas Gadjah Mada ]]>
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DOI: 10.22146/ijc.21585
<![CDATA[Colloidal gold nanoparticles prepared by employing chitosan as the stabilizer in solvent of methanol-acetic acid solution were stable for months without precipitation. The mole ratio of chitosan-gold ions of 5:1 - 30:1 gave dispersed and fine gold particles in range of 9.4-10.4 nm. Gold reduction in chitosan matrix was faster at higher chitosan concentration, and molar ratio of chi : Au, from 5:1 to 40:1. Higher acidity of acetic acid (pH 2-6) led to faster reduction of gold ions. The intensity of gold metal colloid plasmon band increased at higher concentration of acetic acid. Chitosan functioned both as a stabilizer and a reducing agent for gold ions. Gold colloidal particles immobilized on chitosan coated TiO2 as the solid support gave more dispersed and smaller particles (4.6 nm) compared with gold particles supported on TiO2 without chitosan coating.]]>
<![CDATA[PREPARATION OF CHITOSAN-GOLD NANOPARTICLES: PART 1 (OF 2). EFFECT OF REDUCING TECHNIQUE ]]>
<![CDATA[Adlim Adlim]]>;
<![CDATA[Mohamad Abu Bakar]]>
<![CDATA[ Indonesian Journal of Chemistry Vol 8, No 2 (2008) ]]>
Publisher : <![CDATA[Universitas Gadjah Mada ]]>
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DOI: 10.22146/ijc.21621
<![CDATA[Chitosan-stabilized gold nanoparticles were synthesized in aqueous formic acid, citric, or acetic acid with and without chitosan as the stabilizer. Refluxing in methanol, addition of hydrazine or sodium borohydride, photo-irradiation were employed as the reducing agents & reduction technique of gold ions. Dispersed particles of chitosan-stabilized gold were obtained in aqueous acetic acid-methanol solution. The chitosan-stabilized gold colloids (chi-Au) were dispersed and the particle size were in range of 9-30 nm, some of which were crystalline with various shapes. Chi-Au prepared with hydrazine as the reducing agent resulted in large and aggregated particles. The finest and dispersed chi-Au particles were obtained if NaBH4 was used as the reducing agent and the diameters could be controlled within 2.2-2.3 nm.]]>
<![CDATA[PREPARATIONS AND APPLICATION OF METAL NANOPARTICLES ]]>
<![CDATA[Adlim Adlim]]>
<![CDATA[ Indonesian Journal of Chemistry Vol 6, No 1 (2006) ]]>
Publisher : <![CDATA[Universitas Gadjah Mada ]]>
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DOI: 10.22146/ijc.21785
<![CDATA[Terminology of metal nanoparticles, the uniqueness properties in terms of the surface atom, the quantum dot, and the magnetism are described. The further elaboration was on the synthesis of nanoparticles. Applications of metal nanoparticles in electronic, ceramic medical and catalysis were overviewed. The bibliography includes 81 references with 99% are journal articles.]]>
<![CDATA[Immobilization of Sulfur from Different Precursors on Mini Rice-Husk-Ash Pellet Coated Chitosan Film and the Application for Mercury Vapor Uptake ]]>
<![CDATA[Muhammad Adlim]]>;
<![CDATA[Fitri Zarlaida]]>;
<![CDATA[Ibnu Khaldun]]>;
<![CDATA[Rizka Dewi]]>;
<![CDATA[Sofyatuddin Karina]]>;
<![CDATA[Ahmad Fairuz Omar]]>
<![CDATA[ Indonesian Journal of Chemistry Vol 19, No 2 (2019) ]]>
Publisher : <![CDATA[Universitas Gadjah Mada ]]>
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DOI: 10.22146/ijc.34552
<![CDATA[Stabilizing elemental mercury using elemental sulfur has been a laboratory standard method but the studies in gas system are still growing. This study aims to explore the effect of different type immobilized sulfurs toward the mercury vapor uptake in a mini gas reactor. Sulfur powder, sulfur dissolved in carbon disulfide and colloidal sulfur from sodium thiosulfate-hydrochloric acid were immobilized on mini rice-husk-ash pellets that were previously coated with chitosan film. The average thinness of chitosan film was 58 µm covered the each pellet surface with dimension of 3 mm Ø x 4 mm. The trends of the mercury uptake and the rate of absorption were described as follow; Pellet-Scolloid > Pellet-SCS2 > Pellet-Spowder. The mean percentages of mercury uptake after 1 h running at 70oC were 99.36; 89.09 and 75.00 respectively. The reverse trends were observed for the size of S-particle aggregation and the amount of S found on the pellet surface. ]]>
<![CDATA[Simple Preparations and Characterizations of Activated-Carbon- Clothes from Palm-Kernel-Shell for Ammonia Vapor Adsorption and Skim-Latex-Odor Removal ]]>
<![CDATA[Muhammad Adlim]]>;
<![CDATA[Ratu Fazlia Inda Rahmayani]]>;
<![CDATA[Fitri Zarlaida]]>;
<![CDATA[Latifah Hanum]]>;
<![CDATA[Maily Rizki]]>;
<![CDATA[Nurul Ummi Manatillah]]>;
<![CDATA[Omar Muktaridha]]>
<![CDATA[ Indonesian Journal of Chemistry Vol 21, No 4 (2021) ]]>
Publisher : <![CDATA[Universitas Gadjah Mada ]]>
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DOI: 10.22146/ijc.63570
<![CDATA[This study explored a simple preparation and characterization of the activated carbon and cloth from the palm kernel shell and compared it to the commercial-water-filter-carbon specification. A new pyrolysis chamber that is easily scaled up using the palm kernel shell itself as a heat source was tested. Two different steps were compared: the alkaline activation process performed before or after the carbonation process in the palm-kernel-shell carbon preparation. The palm-kernel-shell activated carbons prepared with the current method fulfilled the standard quality of activated charcoal except for the ash content. The sequencing step of the preparation affected the adsorption capacity. Instead of the reverse sequence, the soaking palm kernel shells in NaOH before the carbonation process lead to a higher adsorption capacity. The carbon particle stability on the cloth surface was affected by both the adhesive concentration and its size. The ammonia adsorption capacity of activated carbon cloth (ACC) was between 1–4 mg ammonia per g stuck carbon. The preparation and the carbon type source on ACC affected the adsorption capacity. The ACC absorbed and lessened the skim latex odor vapor, nearly odorless depending on the ACC area and the volume of odor vapor.]]>
<![CDATA[Uji Aktivitas Antioksidan Ekstrak Buah Srikaya (Annona Squamosa L.) Muda dan Matang dengan Metode FRAP (Ferric Reducing Antioxidant Power) ]]>
<![CDATA[Haekal Wahyudi]]>;
<![CDATA[Adlim]]>;
<![CDATA[M. Nasir]]>
<![CDATA[ Al-Kimia Vol 10 No 1 (2022): JUNI ]]>
Publisher : <![CDATA[Study Program of Chemistry - Alauddin State Islamic University of Makassar ]]>
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DOI: 10.24252/al-kimia.v10i1.27391
<![CDATA[The antioxidant activity test of young and ripe Srikaya fruit extract (Annona Squamosa L.) had been carried out by using the FRAP (Ferric Reducing Antioxidant Power) method. This study aims to determine the antioxidant activity of young and ripe srikaya fruit extract using the FRAP method by using qualitative and quantitative method. The research method used was FRAP (Ferric Reducing Antioxidant Power) which was based on a reduction reaction in an acid state towards a yellow Fe3+ (Potassium hexacyanoferat(III)) complex compound to become a bluish-green Fe2+ complex compound due to electron donors from antioxidant compounds. The result of the qualitative analysis of the antioxidant activity of young and ripe srikaya fruit extract was a change in color in the sample extracts of young and ripe Srikaya fruit due to the reduction reaction in an acid state towards the yellow-colored Fe3+ (Potassium hexacyanoferat(III)) complex compound to become a bluish-green Fe2+ complex compound. due to electron donor of antioxidant compounds. Quantitatively, the average antioxidant activity of samples of young and ripe srikaya fruit extract was respectively 7,448 mgAAE/g extract and 9,351 mgAAE/g extract. The result indicated that the antioxidant activity of ripe srikaya fruit was greater than that of young fruit. Based on the results of the analysis parameter testing the t-test, it can be concluded that there is a significant difference in the antioxidant activity of the young and ripe srikaya fruit extract (Annona squamosa L.). The antioxidant activity test of young and ripe Srikaya fruit extract (Annona Squamosa L.) had been carried out by using the FRAP (Ferric Reducing Antioxidant Power) method. This study aims to determine the antioxidant activity of young and ripe srikaya fruit extract using the FRAP method by using qualitative and quantitative method. The research method used was FRAP (Ferric Reducing Antioxidant Power) which was based on a reduction reaction in an acid state towards a yellow Fe3+ (Potassium hexacyanoferat(III)) complex compound to become a bluish-green Fe2+ complex compound due to electron donors from antioxidant compounds. The result of the qualitative analysis of the antioxidant activity of young and ripe srikaya fruit extract was a change in color in the sample extracts of young and ripe Srikaya fruit due to the reduction reaction in an acid state towards the yellow-colored Fe3+ (Potassium hexacyanoferat(III)) complex compound to become a bluish-green Fe2+ complex compound. due to electron donor of antioxidant compounds. Quantitatively, the average antioxidant activity of samples of young and ripe srikaya fruit extract using the FRAP method was respectively 7,448 mgAAE/g extract and 9,351 mgAAE/g extract. The result indicated that the antioxidant activity of ripe srikaya fruit was greater than that of young fruit. Based on the results of the analysis parameter testing the t-test, it can be concluded that there is a significant difference in the antioxidant activity of the young and ripe srikaya fruit extract (Annona squamosa L.).]]>
<![CDATA[DEVELOPING NUTMEG OIL DISTILLATION VIDEO AS AN ALTERNATIVE LEARNING MATERIAL FOR CRAFT AND ENTERPRENEUR SUBJECT MATTER IN SMAN 1 PASIE RAJA ]]>
<![CDATA[Nayu Tisa]]>;
<![CDATA[M Adlim]]>;
<![CDATA[Ibnu Khaldun]]>
<![CDATA[ Chimica Didactica Acta Vol 10, No 1: June 2022 ]]>
Publisher : <![CDATA[FKIP USK ]]>
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DOI: 10.24815/jcd.v10i1.22684
<![CDATA[The purpose of this study was to develop a video of nutmeg oil distillation as an alternative material for craft and entrepreneurship subjects for class XI SMA N 1 Pasie Raja. This study is research and development (RD) with the ADDIE model developed by Dick and Carry (1996). The videos that have been successfully made have gone through the ADDIE stage, namely validation by media experts and material experts with an average score of 88.9% and 88.5%, respectively, so that the material and media aspects are categorized as very good. The learning video is applied in the classroom by showing it; teachers and students gave positive responses of 100% and 88.14%, both of which were categorized as very good. The score of students' understanding of the learning video media obtained an average percentage of 79.47% and was categorized as good. Video learning of nutmeg oil refining is appropriate to be used as a medium of learning in the subjects of crafts and entrepreneurship.]]>
