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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Walisongo Journal of Chemistry Jurnal Ilmiah Mandala Education (JIME) Hydrogen: Jurnal Kependidikan Kimia Abdi Masyarakat JPIn : Jurnal Pendidik Indonesia Hydrogen: Jurnal Kependidikan Kimia Bioscientist : Jurnal Ilmiah Biologi Lumbung Inovasi: Jurnal Pengabdian Kepada Masyarakat Empiricism Journal Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Bakti Sekawan : Jurnal Pengabdian Masyarakat Journal of Authentic Research INTAN CENDEKIA: JURNAL PENGABDIAN MASYARAKAT Sasambo: Jurnal Abdimas (Journal of Community Service)

Hulyadi, Hulyadi

Unknown Affiliation

Author-ID : 3664467

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Pengaruh Model Pembelajaran Problem Solving Dengan Pendekatan Saintifik Terhadap Keterampilan Proses Sains Dan Pemahaman Konsep Siswa Pada Materi Hidrolisis Garam Ilyana, Nia; Khaeruman, Khaeruman; Hulyadi, Hulyadi
Hydrogen: Jurnal Kependidikan Kimia Vol 3, No 1 (2015): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Rendahnya keterampilan proses sains pada mata pelajaran kimia berdampak pada rendahnya pemahaman konsep kimia siswa. Hidrolisis garam merupakan salah satu materi kimia yang dianggap sulit oleh siswa karena memiliki karakteristik yang abstrak sehingga membutuhkan kemampuan berpikir tinggi untuk memahaminya. Tujuan penelitian ini adalah untuk mengetahui pengaruh model pembelajaran problem solving dengan pendekatan saintifik terhadap keterampilan proses sains dan pemahaman konsep siswa pada materi hidrolisis garam. Jenis penelitian ini adalah quasi eksperimental dengan sampel sebanyak dua kelas, teknik pengambilan sampel dilakukan secara cluster random sampling. Instrumen penelitian yang digunakan terdiri dari lembar observasi keterampilan proses sains yang dianalisis secara deskriptif dan soal tes objektif beralasan yang dianalisis secara statistik. Hasil analisis keterampilan proses sains pada kelas eksperimen lebih tinggi dibandingkan kelas kontrol dengan rata-rata nilai 78,97 > 77,36. Sedangkan hasil analisis pemahaman konsep pada kelas eksperimen lebih tinggi dari kelas kontrol dengan rata-rata nilai masing-masing sebesar 79 dan 70. Berdasarkan hasil uji one way anova diperoleh F hitung sebesar 5,07 karena F hitung > F tabel (5,07 > 4,06) maka dapat disimpulkan bahwa model pembelajaran problem solving dengan pendekatan saintifik berpengaruh terhadap keterampilan proses sains dan pemahaman konsep siswa pada materi hidrolisis garam.

PENGARUH MODEL PEMBELAJARAN TAI DIPADUKAN DENGAN LT TERHADAP INTERAKSI SOSIAL DAN HASIL BELAJAR SISWA Izzatunnisa, Izzatunnisa; Nufida, Baiq Asma; Hulyadi, Hulyadi
Hydrogen: Jurnal Kependidikan Kimia Vol 4, No 1 (2016): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

This research target was toidentify the influence of Team Assisted Individualization (TAI) type of Cooperative Learning Model accompanied with LearningTogether (LT) to student social interaction andstudy result. This was quasi experimental with post-test only control group design. Research subject was 63 student of 10th grade who was divided onto 35 student of experiment group and 28 student of control group. Experiment group was learned by Team Assisted Individualization (TAI) accompanied with LearningTogether (LT) and control group by conventional expository model. There were instrument on this research: (1) treatment instrument consist of Syllabus, RPP (teaching plant), and LKS (work sheet); (2) evaluation instrument consist of RPP observation sheet, social interaction questionnaire, social interaction observation sheet, and achievement test. Data was collected by observation, questionnaire, and test technique. Data was analyzed by descriptive analysis and independent sample t-test through SPSS 16.0 for windows as hypothetic test. Based on questionnaire, student social interaction analysis result showed enhancement between before and after treatment, from 71.67 % to 75.76 %, and based on direct observation, 67.50 %, on good category. Student study result enhancement analysis result was showed by their classical complete study, form 8.57 % to 94.28%, and t-test of study result was divine significance value 0.000 (<0.05), so that Ho was denied and Ha was accepted. So, it was concluded that: (1) Team Assisted Individualization (TAI) type of Cooperative Learning Model accompanied with LearningTogether (LT) was influence to student social interaction; (2) Team Assisted Individualization (TAI) type of Cooperative Learning Model accompanied with LearningTogether (LT) was influence to student study result.

Pengembangan Bahan Ajar Ikatan Kimia Model Inkuiri dengan Strategi Konflik Kognitif Terhadap Kemampuan Berpikir Kritis Fahrurrozi, Fahrurrozi; Hulyadi, Hulyadi; Pahriah, Pahriah
Hydrogen: Jurnal Kependidikan Kimia Vol 7, No 1 (2019): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Chemical bonding was one of the subjects considered difficult by students, because it had submicroscopic concept that learns about the formation of bonds an element that was quite difficult for students to understand. The development of teaching material in the form of teaching materials was seen as a solution to this problem. This study aimed to develop chemical bondinginquiry modelsteaching materials with conflict cognitive strategies towards critical thinking skills. This studywas development research with ADDIE (Analysis, Design, Development, Implementation, and Evaluation)model design. The development results were validated by three expert validators, one practitioner validator and ten IKIP Mataram students as students' limited test validators. Quantitative data from the results of feasibility validation and the results of the assessment of student attitudes toward critical thinking skills were analyzed by percentage formula and the results of effectiveness test data were calculated by N-gain. Qualitative data in the form of responses and suggestions for improvement from the validator was used as a consideration to make revisions to the instructional materials developed. In general, the validator's assessment of the results of the development obtained an average percentage of 83.80%, 85.71%, 88% and 85.71%. While the results of the analysis of effectiveness using the N-gain test obtained an average score of 0.6 with the medium category and analysis. This showed that the teaching materials developed were very feasible to proceed to a broader and more effective stage to foster critical thinking skills.

PENGEMBANGAN BAHAN AJAR KIMIA ORGANIK BERBANTUAN MEDIA KOMPUTASI TERHADAP KEMAMPUAN BERPIKIR KREATIF Hulyadi, Hulyadi; Khotimah, Khusnul
Hydrogen: Jurnal Kependidikan Kimia Vol 4, No 2 (2016): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

The results of observations and interviews on lecturers and students show that students tend to pay less attention when the lecturer explains the material. The interaction is also still impressed one way, only lecturers to students. It shows that students' interest toward organic chemistry learning is still low and considered difficult by them. Students are less directed in constructing their knowledge, resulting in many misconceptions and low student's thinking ability. This happens because the union has not multi-level chemical representation that includes the macroscopic, microscopic and symbolic levels in the learning process undertaken. This research was conducted on chemical education students at IKIP Mataram who took organic chemistry course II. This research was conducted from September to December 2016 consisting of preliminary research, product trial, data processing and preparation of research result report. This study aims to determine the feasibility and effectiveness of teaching materials with inquiry assisted approach Computational Chemistry program in improving students' creative thinking ability. This research uses R & D procedure which includes define, design and develop stage. The result of the research shows that the teaching materials developed meet the valid criteria, and effectiveness in improving the ability of creative thinking this can be seen from the result of the n-gain test which shows the improvement of students' creative thinking ability after learning using inquiry materials of computational media in organic chemistry.

KARAKTERISASI ZEOLIT ALAM SELONG BELANAK LOMBOK SEBAGAI ADSORBEN DALAM PEMURNIAN ALKOHOL FERMENTASI Hulyadi, Hulyadi
Hydrogen: Jurnal Kependidikan Kimia Vol 5, No 1 (2017): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

NTB has a large zeolite potential with a zeolite content percentage of 190,405 tons. One area that has great potential is the Selong belanak Central Lombok precisely at coordinates 8o51'48.5 "S 116o10'62.0" E mull mullet. Utilization of zeolite Lombok area is only used as a mixture of animal feed because it has not done research on its potential. One potential zeolite is its ability as an absorbent. Alcohol fermentation has not been able to be an alternative as a solution to energy problems. Alcohol fermentation only produces alcohols of less than 30% purity. This is caused by acetic acid byproducts that make microbes in the fermentation process can not breed optimally. From these problems need to be performed zeolite characteristic for optimal utilization. The purpose of this research is to find out the characteristics of natural zeolite of Selong belanak Lombok as an adsorbent in purifying alcohol of fermentation. The method of this research is descriptive with data collecting technique performed by zeolite characterization including cation exchange capacity with Schollenberger method, surface area using methylene blue method, absorption using Iodometry titration method, zeolite water content using gravimetric method and alcohol concentration determined by specific gravity and instrument GC-MS. Based on the result of natural zeolite research, Selong belanak Lombok has characteristic with natural cation zeolite exchange capacity of Selong Belanaq Lombok for 14,0894 meq / 100 gram. The zeolite surface area is 16, 3537 m2 / gram. Absorption zeolite to iodium is relatively low at 2.9357%. water content obtained from natural zeolite Selong Belanaq Lombok is 7.74%. After use of various alcoholic distillate absorbent fermentation alcohol concentration was obtained 81.4%. Based on the findings of natural zeolite researchers mullet tubes need to be activated more optimally to produce alcohols with purity above 99%, as laden mixture material in gasoline.

The Development Of Chemistry Virtual Laboratory On Colloidal System To Improve Generic Science Skills Khaeruman, Khaeruman; Darmatasyah, Darmatasyah; Hulyadi, Hulyadi
Hydrogen: Jurnal Kependidikan Kimia Vol 5, No 2 (2017): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

This study animed to obtain the from and feasibility of teaching materialsinteractive multimedia based on virtual laboratory on colloidal systemconcept for SMA. The development model used in this study was 4D namelyDefine, Design,, Development, And Disseminate. But in this study only cameto Development stage. The velopment result was validated by 2 lecturers, 1teacher and 10 students in Ma Nurul Muhsinin. Based on the assessment oftwo lecturers as validatorn got the average (71,3%) with the appropriatecategory, the validation result from the subject teachers got percentage of(77,7%) with appropriate category, and the limited trial result by 10 studentsgot percentage of (80,8%) with decent category. So it can be concluded thatthe feasibility of interactive multimedia based on virtual laboratory oncolloidal system material for SMA/MA/SMK was feasible to use.

DEVELOPING INTERACTIVE FUNDAMENTAL CHEMISTRY MULTIMEDIA IN GROWING GENERIC SKILL FOR TEACHER TRAINING STUDENTS Khaeruman, Khaeruman; Hulyadi, Hulyadi
Hydrogen: Jurnal Kependidikan Kimia Vol 4, No 1 (2016): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Chemistry investigates interactions and reactions of particles as atom, ion, molecule, and their tendencies. Interactions occurred are so abstract that make them become difficult to be observed and documented. This becomes a problem in learning chemistry. It happens due to the separation of macroscopic and microscopic concepts. In fact, to be able to obtain the concept of chemistry as whole requires learning model which can integrate three aspects namely macroscopic, symbolic-conducted through practicum, and microscopic-conducted through modeling interactive media. This study aimed to developed interactive learning media for fundamental chemistry class. This study belongs to Educational Research and Development. In general, there were three steps conducted by the researcher namely analyzing, designing, and developing. Data obtained from this study was in the form of qualitative data consisted of suggestions and responses in likert scale. Validations result in interactive multimedia appearance showed that the average 85 was obtained-this was indicated as very good, in materials appropriateness the average 84 was obtained-this was indicated as good, and in programming appropriateness the average 85 was obtained-this was indicated as very good. The result in small group showed that interactive multimedia development was categorized as very good. This proven by the percentage appropriateness was 93.14%. Further, the researcher hopes that the product of this study can be useful in improving interest, motivation, and concept understanding of chemistry teacher training students so that they can relate learning material to real world in order to conduct meaningful learning.

Pengaruh Pendekatan Simple Explicit Animation (SEA) Terhadap Kemampuan Berpikir Logika Mahasiswa Pada Matakuliah Kimia Organik Hulyadi, Hulyadi; Dewi, Citra Ayu
Hydrogen: Jurnal Kependidikan Kimia Vol 3, No 1 (2015): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

Karakteristik matakuliah kimia organik banyak mengandung konsep abstrak yang berimpilikasi pada rendahnya motivasi, minat belajar mahasiswa, dan dosen pengampu matakuliah seringkali kesulitan dalam menguraikan konsep pada tataran mikroskopis yaitu proses perpindahan elektron dalam sebuah reaksi senyawa organik. Berdasarkan fakta tersebut maka diperlukan suatu pendekatan pembelajaran yang tepat untuk mengajarkan materi mekanisme reaksi organik. Salah satu pendekatan yang efektif untuk diterapkan adalah pendekatan pembelajaran SEA (Simple Explicit Animation). Pembelajaran SEA memiliki media animasi yang mampu memvisualisasikan konsep abstrak yang tidak dapat diamati indera penglihatan secara langsung. Tujuan penelitian ini adalah untuk mengetahui pengaruh pendekatan pembelajaran SEA terhadap kemampuan berpikir logika mahasiswa pada matakuliah kimia organik. Jenis penelitian yang digunakan adalah penelitian eksperimen semu. Adapun desain penelitian yang digunakan adalah posttest only control group design. Dalam rancangan penelitian ini, tehnik pengambilan sampel yang digunakan adalah tehnik purposive sampling, sehingga diperoleh sampel sebanyak dua kelompok yaitu satu kelompok dengan eksperimen dan satu dengan kelompok kontrol. Pada penelitian ini instrumen penelitian yang digunakan adalah tes kemampuan berpikir logika melalui soal essay. Berdasarkan hasil uji coba insrumen, diperoleh validitas soal sebesar 0,80 dengan kategori tingkat validitas tinggi sedangkan reliabelitas soal sebesar 0,86 dengan kategori reliabelitas sangat tinggi. Hasil penelitian yang telah dilakukan dapat disimpulkan bahwa terdapat pengaruh kemampuan berpikir logika mahasiswa yang diajar menggunakan pendekatan SEA dibandingkan pembelajaran konvensional. Skor kemampuan berpikir logika mahasiswa lebih tinggi yang diajar menggunakan pendekatan SEA dibandingkan pembelajaran konvensional.

PERBANDINGAN VOLUME DAN MASSA NUTRIEN OPTIMUM PADA KARAKTERISTIK KIMIA NATA DE LERI DARI LIMBAH AIR CUCIAN BERAS Wahab, Hasmawati; Ahmadi, Ahmadi; Hulyadi, Hulyadi
Hydrogen: Jurnal Kependidikan Kimia Vol 4, No 1 (2016): Hydrogen: Jurnal Kependidikan Kimia
Publisher : IKIP Mataram

In the processing of rice into the rice used is rice that has been whased away, while the rice water thrown away because it was considered important that the rice water that is not used will be waste, it is necessary alternative in their utilization. The alternative is to make a food product by a fermentation process using bacteria Acetobacterxylinum called nata de leri. It is caused rice water contain nutrients such as carbohydrates, protein, and vitamin B1 or thiamine. This study aimed to compare the volume and optimum mass of nutrients at chemical characteristicts of nata de leri generated. This type of research was Pre-Experimental by varying nutrient source used was suger as a carbon source and tofu waste water as a source of nitrogen. In this research, was adding four variations of nutrient source that has been 100:25 (g/mL), 125:50 (g/mL), 150:75 (g/mL), 175:100 (g/mL). Furthermore, the analisisproksimat include moisture content, ash content, fat content, protein content, and carbohydrate content. Best treatment combination was obtained on the addition of nutrient source 125:50 (g/mL) which generate 78,7217% moisture content, ash content of 1,0707%, fat content of 0,5636%, protein content of 0,4776% and the carbohydrate content 19,1893%.

UJI AKTIVITAS ANTIMIKROBA DAUN SIRSAK (ANNONA MURICATA L.) TERHADAP BACILLUS SUBTILLIS DAN ESCHERICIA COLI Fibonacci, Anita; Hulyadi, Hulyadi
Walisongo Journal of Chemistry Vol 1, No 1 (2018): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Tujuan penelitian ini adalah untuk mengetahui aktivitas antimkroba dari ekstrak daun sirsak terhadap Bacillus subtilis dan Esherichia coli. Ekstrak daun sirsak diperoleh dengan cara ekstraksi menggunakan metode Soxhletasi dengan pelarut n-heksana dan metanol. Subjek dalam penelitian ini adalah ekstrak daun sirsak. Ekstraksi dilakukan dengan metode soxletasi dengan 8 sirkulasi. Identifikasi senyawa antimikroba menggunakan metode cakram/ paper disc. Dari hasil penelitian ekstraksi daun sirsak tersebut membuktikan bahwa ekstrak daun sirsak mempunyai aktivitas antimikroba terhadap Bacillus subtillis dan Eschericia coli.

Co-Authors - Khaeruman Abd. Rasyid Syamsuri Ade Sukma Hamdani Agus Muliadi AHMADI Ahmadi Ahmadi Ahmadi Ahmadi Ali Imran Ali Imran Anita Fibonacci Anita Fibonacci Asy’ari, Muhammad Azmi, Irham Baiq Asma Nufida Baiq Asma Nufida Baiq Mirawati Bayani, Faizul Bilad, Muhammad Roil Bimaharyanto, Deden Eka Citra Ayu Dewi Dahlia Rosma Indah Darmatasyah Darmatasyah Darmatasyah, Darmatasyah Delila Idsa Amara Raymanda Devi Yuliana, Devi Endang Sudiana Fahrurrozi Fahrurrozi Faizul Bayani Faizul Bayani Fitriani, Herdiyana Gargazi Gargazi Hamdani, Ade Sukma Hasmawati Wahab Helmi Rahmawati Hendrawani Hendrawani Hendrawani Hendrawani Hendrawani Hendrawani Hendrawani, Hendrawani Huaida, Nurul Hunaepi, Hunaepi Husnul Hatimah Husnul Hatimah Husnul Hatimah, Husnul Ida Wahyuni Ilyana, Nia Intan Dwi Hastuti Irma Utu Nganji Istin Fitriana Aziza Izzatunnisa Izzatunnisa Izzatunnisa Izzatunnisa, Izzatunnisa Jamilul Mujaddid Jupriadi, Lalu KETUT SUKARMA . Khaeruman Khusnul Khotimah khusnul khotimah M. Muhali Masiah Masiah Mirawati, Baiq Muhali Muhali Muhali Muhamad Zaenudin Muhammad Asy'ari Muhammad Fuaddunazmi Muhammad Roil Bilad Muhammad Sabri Ni Nyoman Sri Putu Verawati Nia Ilyana Pahriah Pahriah Pahriah PAHRIAH, PAHRIAH Putri, Yuli Anggraini Rahayu, Lale Budi Hutami Rahayu, Supiani Rosmayanti, Baiq Subagio Subagio, Subagio Suryati Suryati Sutarto Sutarto Taufik Samsuri Wahab, Hasmawati Wiwik Handayani Yuli Anggraini Putri Yuliana, Depi Yusran Khery Yusran Khery, Yusran Yusril Anwar Zul Anwar

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