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All Journal Lembaran Ilmu Kependidikan Jurnal Tapis : Jurnal Teropong Aspirasi Politik Islam Jurnal Pendidikan Fisika FKIP UM Metro Biology, Medicine, & Natural Product Chemistry Jurnal Pendidikan Kimia Universitas Riau Al-Adyan: Jurnal Studi Lintas Agama Unnes Science Education Journal JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Titian Ilmu: Jurnal Ilmiah Multi Sciences CIRCUIT: Jurnal Ilmiah Pendidikan Teknik Elektro Seminar Nasional Pendidikan IPA JMPM: Jurnal Matematika dan Pendidikan Matematika Indonesian Journal of Science and Mathematics Education Jurnal Inotera Media Ilmiah Teknik Sipil Care : Jurnal Ilmiah Ilmu Kesehatan Eksakta : Berkala Ilmiah Bidang MIPA Jurnal Inovasi Pendidikan JPGMI (Jurnal Pendidikan Guru Madrasah Ibtidaiyah Al-Multazam) Pascal: Journal of Physics and Science Learning Jurnal Riset Biologi dan Aplikasinya Jurnal Pengabdian kepada Masyarakat Nusantara Jurnal JEETech Jurnal Keperawatan Muhammadiyah Bengkulu Jurnal Interprof Entalpi Pendidikan Kimia Jurnal Riset dan Inovasi Pembelajaran Journal of Health Community Service Al-Kawakib AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Jurnal Hukum Sehasen J-Innovation Journal of Educational Sciences Al Huwiyah: Journal of Woman and Children Studies Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan Jurnal Tekstil: Jurnal Keilmuan dan Aplikasi Bidang Tekstil dan Manajemen lndustri Greenation International Journal of Engineering Science Biodik: Jurnal Ilmiah Pendidikan Biologi Greenation International Journal of Engineering Science U-Teach: Journal of Young Physics Education Teacher Jurnal Pengabdian Cendikia Nusantara JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Jurnal Indonesia Mengabdi Balance: Jurnal Ekonomi
Effendi Effendi
Program Studi Pendidikan Kimia FKIP Universitas Sriwijaya
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Development of Steam-Pjbl Integrated LKPD on Acid and Based Materials For Class XI SMA Putri, Shella Dewanti; Effendi, Effendi
Journal of Educational Sciences Vol 7. No. 2. April 2023
Publisher : FKIP-Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jes.7.2.p.148-159

Abstract

This study aims to develop teaching materials in the form of Student Activity Sheets (LKPD) which are integrated in Science, Technology, Engineering, Arts and Mathematics – Project-Based Learning (STEAM-PjBL) on Acids and Bases material and are used to determine the level of validity and practicality of the LKPD that is used. developed. This research is a research (R&D) with a 4-D development model. This 4-D model has four stages, namely the stages of define, design, develop and disseminate. However, the dissemination stage was not carried out. This study used instruments in the form of content and construct validation questionnaires, teacher and student response questionnaires. This LKPD was validated by five experts consisting of a Chemistry lecturer (FMIPA UNP) and a chemistry teacher. The validation data obtained were analyzed using the v Aiken scale, while the practicality data were analyzed using a comparison of students' scores with students' maximum scores. Based on the validation questionnaire that has been analyzed, it can be concluded that the LKPD developed is valid with a v value of 0.86 with a very valid category. While the practicality of teachers and students obtained NP values of 0.85 and 0.89 with very practical categories.
Development of Steam-Pjbl Integrated LKPD on Molecule Shape Materials for Class X Senior High School Pratiwi, Fefiola Isra; Effendi, Effendi
Journal of Educational Sciences Vol 7. No. 2. April 2023
Publisher : FKIP-Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jes.7.2.p.213-223

Abstract

This study aims to produce STEAM-PjBL (Science, Technology, Engineering, Art and Mathematics-Project Based Learning) integrated LKPD on the material of Molecular Forms and determine the level of validity and practicality of the resulting LKPD. This research is a Research and Development (R&D) research using a 4-D model which consists of four steps: define, design, develop, disseminate. This research is limited to the design stage. The research instrument is a validity sheet and a practical sheet. The LKPD was validated by 6 validators consisting of 3 chemistry lecturers from FMIPA UNP and 3 chemistry teachers at SMA N 14 Padang. The LKPD was tested by 3 chemistry teachers and 30 students in class XI MIPA 5 SMA N 14 Padang. The validity data used the Aiken's v Scale and the practical data used a comparison of the students' scores with the maximum scores of students. The average Aiken's v scale is 0.89 with a very valid category. While the practicality of teachers and students obtained NP values of 0.90 and 0.87 with very practical categories.
Dimensi Partisi Graf Thorn dari Graf Kincir ?Wd?_2^m untuk m=1,2,3 Zayendra, Siska -; Mardhaningsih, Auli; Yulianti, Lyra; Effendi, Effendi
JMPM: Jurnal Matematika dan Pendidikan Matematika Vol 4 No 1: March - August 2019
Publisher : Prodi Pendidikan Matematika Universitas Pesantren Tinggi Darul Ulum Jombang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26594/jmpm.v4i1.1434

Abstract

Misalkan G = (V, E)  adalah  suatu  graf terhubung.  Himpunan  titik  V(G) dipartisi  menjadi  beberapa  partisi,  dan  ? = {S1, S2, ..., Sk } sebagai  himpunan yang berisikan  k-partisi  tersebut.  Misalkan  v ? V (G),  representasi  v terhadap ? didefinisikan sebagai r(v|?)  = (d(v, S1), .., d(v, Sk )).  ? disebut  partisi  penye- lesaian jika setiap  titik  di G mempunyai  representasi  yang berbeda  terhadap ?. Kardinalitas yang minimum dari partisi  penyelesaian disebut  dimensi partisi  dari G, ditulis pd(G). Thorn  dari graf G, dengan parameter l1, l2, . . . , ln diperoleh dengan menambahkan daun sebanyak li ke titik vi  dari graf G, untuk  i ? {1, . . . , n}, dengan  li  ? 1.  Graf  thorn  dari  graf G dinotasikan  dengan  T h(G, l1, l2 , . . . , ln ). Pada  jurnal ini ditentukan dimensi partisi  graf thorn  dari graf kincir W d2m   untuk m = 1, 2, 3, dinotasikan  dengan T h(W d2m , l0 , l1, . . . , l2m ), untuk  i = 0, 1, 2, .., 2m.Kata kunci: Dimensi partisi,  graf thorn, graf kincir
Efforts to Optimize Injector Performance for The Combustion Process in The Diesel Generator on The Mt. Gas Patra 3 Ardhika K, Wildan; Alamsyah, Jaya; Effendi, Effendi; Mangatur Tampubolon, Brenhard
Greenation International Journal of Engineering Science Vol. 1 No. 3 (2023): (GIJES) Greenation International Journal of Engineering Science (September 2023
Publisher : Greenation Research & Yayasan Global Resarch National

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v1i3.53

Abstract

The injector is a component that functions to atomize fuel in the combustion process, the performance of this injector is very influential on whether or not the combustion process is complete in a diesel generator. The combustion process is very important so that the diesel generator gets optimal performance so that it can properly supply the electricity needs on board. The research method used is descriptive qualitative using data analysis techniques using fishbone diagrams and using data collection techniques through interviews, observation and documentation studies. The indications that appear about the not optimal fogging is the high temperature of the exhaust gas, the exhaust gas is black in color and detonation appears. After analysis, several causes were found, one of which was a lack of pressure on the injector.
Efforts to Optimize Injector Performance for The Combustion Process in The Diesel Generator on The Mt. Gas Patra 3 Ardhika K, Wildan; Alamsyah, Jaya; Effendi, Effendi; Mangatur Tampubolon, Brenhard
Greenation International Journal of Engineering Science Vol. 1 No. 3 (2023): (GIJES) Greenation International Journal of Engineering Science (September 2023
Publisher : Greenation Research & Yayasan Global Resarch National

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v1i3.53

Abstract

The injector is a component that functions to atomize fuel in the combustion process, the performance of this injector is very influential on whether or not the combustion process is complete in a diesel generator. The combustion process is very important so that the diesel generator gets optimal performance so that it can properly supply the electricity needs on board. The research method used is descriptive qualitative using data analysis techniques using fishbone diagrams and using data collection techniques through interviews, observation and documentation studies. The indications that appear about the not optimal fogging is the high temperature of the exhaust gas, the exhaust gas is black in color and detonation appears. After analysis, several causes were found, one of which was a lack of pressure on the injector.
Pengunaan LKPD Berbasis Digital untuk Meningkatkan Hasil Belajar IPAS Siswa SD Sari, Diah Kartika; Hartono, Hartono; Effendi, Effendi; Ad'hiya, Eka; Sari, Rika Puspita
Jurnal Riset dan Inovasi Pembelajaran Vol. 5 No. 1 (2025): Januari-April 2025
Publisher : Education and Talent Development Center Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/jrip.v5i1.2399

Abstract

Guru yang profesional adalah guru yang senantiasa meningkatkan kompetensinya secara terus-menerus, selalu kreatif, inovatif, serta menganalisis kelebihan dan kekurangan yang telah dilakukan dalam proses belajar mengajar yaitu melalui Penelitian Tindakan Kelas (PTK). Tujuan penelitian ini adalah untuk mengetahui peningkatan hasil belajar IPAS siswa SD Negeri 24 Palembang dengan pembelajaran mennggunakan LKPD berbasis digital. Penelitian ini merupakan penelitian tindakan kelas (PTK). Subyek pada penelitian ini adalah siswa kelas V Sekolah Dasar Negeri 24 Palembang. Keberhasilan dalam penelitian ini apabila hasil belajar peserta didik dalam suatu kelas mencapai ketuntasan klasikal ≥ 75% dari jumlah keseluruhan peserta didik dalam kelas dan dengan mencapai KKM dengan nilai ≥75. Berdasarkan hasil dan pembahasan terlihat bahwa terdapat peningkatan persentase siswa yang tuntas (KKM≥75) dari mulai prasiklus (43%), siklus 1 (71%), dan siklus 2 (89%). Penelitian ini telah memenuhi indikator keberhasilan karena sebanyak 89% (≥75%) siswa tuntas. Dengan demikian dapat disimpulkan bahwa penggunakan Lembar Kerja Peserta Didik (LKPD) berbasis digital dapat meningkatkan hasil belajar siswa kelas V SDN 24 Palembang pada mata pelajaran IPAS.
Utilization of Dry Cocoa Pod Husks as an Antioxidant-Rich Herbal Drink Fitri, Ernarisa; Effendi, Effendi; Azra, Azmi
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 22 No. 2 (2021): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (596.871 KB) | DOI: 10.24036/eksakta/vol22-iss2/262

Abstract

Cocoa (Theobroma cacao L) production in Indonesian has increased every year, therefore more cocoa pod husks are produced. Currently, the use of cocoa pod husks is still very limited, even most farmers only dump the pods and turn them into plantation waste which will later become new problems in the plantation environment, such as causing bad smell and spreading diseases to healthy cocoa. Even if there is use of cocoa pods, at this point it is only used for animal feed and compost. In fact, cacao pod husks contain flavonoids and phenolic compounds which have high levels of antioxidant activity which are very beneficial fot the health. Based on the results of the sample analysis test using the FTIR and XRF instrument, there are functional groups that contain antioxidants and based on the XRF test, the pods of cocoa also contain several minerals, including 60,69% potassium and 24,56 calcium. Antioxidants can prevent the activity of free radicals which are the main causes of degenerative diseases. Therefore, cacao pod husks are very useful for making herbal drinks by drying and pounding them into a homogeneous powder product.
Enhancement of Knowledge and Internalization of Culture Through Employee Training at RS Islam Surabaya Budhi Setianto; Adriansyah, Agus Aan; Lukiyono, Yauwan Tobing; Karmila, Hartatik Nila; Effendi, Effendi; Sa’adah, Nikmatus
Journal of Health Community Service Vol. 5 No. 1 (2025): Journal of Health Community Service: 2025 January
Publisher : UNUSA Press

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

Abstract

The addition of employees at the Surabaya Islamic Hospital means that they don't know each other, the difference in generations is one of the clashing problems related to communication. If this problem is left unchecked, it is possible that conflicts will often occur, and teamwork will not be formed in accordance with the organization's expectations. Objectives: community service is to organize cultural internalization workshops and routine exercise programs aimed at creating a pleasant work atmosphere. The informal happy atmosphere aims to foster good teamwork between employees. The implementation method is to provide workshops to increase employee culture internalization and exercise. Based on the results of this workshop, there was an increase in knowledge of 14.2%. There is a significant difference between the Pre Test and Post Test based on the results of the Paired Sample T-Test with an Apha of 5%.
The Inhibitory Effect of East Indonesia Endemic Plant Itchy Leaves on Staphylococcus epidermidis as a Normal Skin Flora Malawat, Siti Rabida Nurhasanah; Warella, Juen Carla; Bandjar, Fitri Kadarsih; Effendi, Effendi
Jurnal Riset Biologi dan Aplikasinya Vol. 7 No. 1 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrba.v7n1.p66-76

Abstract

Itchy leaf (Laportea decumana) is one of the plants endemic to Eastern Indonesia. People usually use itchy leaves as an alternative treatment for pain and soreness by rubbing it on the surface of the body. Itchy leaves are very useful because they contain abundant secondary metabolites. The application of itchy leaves by rubbing can certainly affect normal skin flora such as Staphylococcus epidermidis, leading to health problems. This study aimed to investigate the effect of methanol extract of itchy leaves on the normal skin flora of S. epidermidis. This test was conducted using the disk diffusion method. The results of this study showed that all concentrations of itchy leaf extract inhibited the growth of S. epidermidis. The highest inhibitory activity was observed at 50% concentration (23.00 ± 7.20), categorized as very strong, followed by 100% concentration (15.00 ± 2.90), 25% (18.00 ± 11.3), 12.5 (13.40 ± 3.51), and 6.25 (10.40 ± 3.10), all categorized as strong. These findings indicate that the prolonged use of itchy leaves may affect the growth of normal flora, resulting in health problems. On the other hand, itchy leaves have the potential to be developed as an antibacterial agent in the future.
Pengaruh Penggunaan Collector di Mesin Speed Frame terhadap Ketidakrataan Benang Ne 30 yang Dihasilkan Harianto, Dedy; Sugiyarto, Sugiyarto; Effendi, Effendi
Jurnal Tekstil Vol 5 No 2 (2022): Vol 5 No 2 Desember 2022
Publisher : Akademi Komunitas Industri Tekstil Dan Produk Tekstil Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59432/jute.v5i2.39

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan collector di Mesin Speed Frame tipe JWF 1415 terhadap kualitas benang (U%) Ne 30 dari roving 100% rayon yang dihasilkan. Metodologi penelitian yang dilakukan adalah eksperimental, dimulai dengan melakukan studi pendahuluan kemudian dilanjutkan dengan mengumpulkan referensi dan dasar teori dari berbagai buku penunjang mengenai kualitas benang. Dari referensi kemudian dibuat perumusan masalah mengenai pengaruh penggunaan collector pada mesin speed frame terhadap kualitas benang Ne 30 dari roving 100% rayon. Langkah selanjutnya adalah melakukan pengujian nomor benang (Ne) dan pengujian ketidakrataan benang. Dari penelitian yang dilakukan dapat disimpulkan bahwa bahwa Ne benang menggunakan material roving dengan collector lebih bagus dibandingkan Ne benang yang dihasilkan dari roving yang tidak menggunakan collector yaitu untuk spindel nomor 257 adalah 30,39 dan 33,50; serta untuk spindel nomor 258 adalah 30,32 dan 33,19. Ketidakrataan benang (U%) dari material roving dengan collector lebih bagus dibandingkan material yang dihasilkan dari roving yang tidak menggunakan collector yaitu 9,15 dan 10,36
Co-Authors Abd. Rasyid Syamsuri Afriyani, Sicilia Agus Aan Adriansyah Agustina, Nika Rosa Aidil Fitri, Aidil Alamsyah, Jaya Alimatu Fatmawati Alqhorina, Vivi Anisatur Rofiqah, Siti Araska, Wahyu Arazka, Wahyu Ardhika K, Wildan Arini Rosa Sinensis Arlana, Terry Arlis, Angga Putra Astalini Astalini Azhar Affandi Azra, Azmi Badi’ah, Siti Badruzaman Badruzaman, Badruzaman Baehaqi Bandjar, Fitri Kadarsih Budhi Setianto Dedy Harianto Diah Kartika Sari Dwi Agus Kurniawan Dwi Andriani, Dwi Dwina Archenita Eka Ad’hiya Ekasari, Febri Eldiswari, Zikra Ernawati Ernawati Fakhruddin Fakhruddin Fakhruddin Fatmir Edwar Firdaus, T Fitri, Ernarisa Fitria Wijayanti, Fitria Fitriady Ginanda, Hendra Gusnita, Riza Haikal, M. Agil Hartono Hartono Haryani, Maefa Eka Hijra, Reza Husein, Anggun Lestary Husni, Alya Miftahul IDA RAHMAWATI Indra Irawan Indriati, Bela Iwan Sidharta Karmila, Hartatiek Nila Karmila, Hartatik Nila Khanifah, Yani Kiki Muhamad Hakiki Listiana, Devi Lukman Murdiansyah, Lukman M. Ilyas Fadilla Malawat, Siti Rabida Nurhasanah Mangatur Tampubolon, Brenhard Mardhaningsih, Auli Mardhaningsih, Auli Masykuroh, Siti Melda Yunita Muhammad Afwan Romdloni Muhammad Hatta Mujiono Mujiono Mulyani, Putri Mursilah, Mursilah Musofa, Ade Mustofa, M.Iqbal Muzakki, Haris Nadiah, Nur Nahumarury, Salmin Safril Neswati Neswati Nidayati, Yura Nikmatus Sa’adah Ningsih, Dwi Putri Sulistiya Nugraha, Aadi Nurfalina, Yuliana Nuryana, Nila Oktaviaroza, Oktaviaroza Oktrison, Oktrison Oni Guspari Pohan, Rini Permatasari Pratiwi, Fefiola Isra Prices, Afrizal Putra Priscylio, Ghery Puspitahati, Riski Putri Putra, Roni Tri Putri, Shella Dewanti Qurotul Aini Raberta, Yulpa Rachman, Fuad Abd Rachman, Fuad Abdur Rahmat Hidayat Rahmi Susanti Raimon Raimon, Raimon Rika Puspita Sari Rinaldo, Rinaldo Rohmah, M Safwan Safwan, Safwan Sayuti, Kesuma Sekta, Masri Juang Sholikahah, Ainun Ummi Sinensis, AR Sri Enggar Kencana Dewi Subriadi, Fejri Sugiyarto Sugiyarto Sumaryanti Sumaryanti Sunandar, Dwi Sunandar, Dwi Susantri, Mery Syafira, Annisa Syiam Sholekhah, Eka Thoha Firdaus Vernando, Vero Gusri Wahid Gunarto, Wahid Warella, Juen Carla Widayanti Widayanti Winda Fitria Yulianti, Lyra Yusi, Suryani Zakwansyah Zakwansyah, Zakwansyah Zayendra, Siska - Zayendra, Siska -