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All Journal Jurnal Sain Veteriner JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Penelitian Pendidikan IPA (JPPIPA) Journal of Education Technology Jurnal Agrohut
Wa Nirmala
Universitas Darussalam Ambon
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Social Sciences Veterinary

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POTENSI ANTIBAKTERI EKSTRAK ALGA HIJAU Halimeda makroloba Decaisne DARI PERAIRAN DESA HUTUMURI KOTA AMBON Sriyati Sampulawa; Wa Nirmala
Jurnal Sain Veteriner Vol 39, No 2 (2021): Agustus
Publisher : Fakultas Kedokteran Hewan Universitas Gadjah Mada bekerjasama dengan PB PDHI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jsv.59980

Abstract

Perkembangan penggunaan obat-obatan tradisional  untuk membantu meningkatkan kesehatan masyarakat sudah cukup meluas, salah satu tumbuhan yang sering digunakan dalam bidang kesehatan yaitu alga hijau, penggunaan alga hijau karena memiliki senyawa metabolit sekunder yang efektif dalam menghambat pertumbuhan bakteri, namun isolasi senyawa aktif dari alga hijau yang efektif  dalam menghambat pertumbuhan bakteri masih jarang dilakukan, salah satunya Halimeda makroloba Decaisne sehingga perlu dilakukuan isolasi dan identifikasi senyawa yang aktif dalam menghambat pertumbuhan bakteri. Untuk mengetahui potensi antibakteri ekstrak alga hijau Halimeda makroloba Decaisne dari perairan Desa Hutumuri Kota Ambon dapat dilakukan melalui beberapa tahapan yaitu proses pengambilan sampel, proses ekstraksi, proses uji fitokimia uji daya hambat bakteri. Berdasarkan hasil penelitian uji fitokimia menunjukan bahwa ekstrak alga hijau Halimeda makroloba Decaisne kandungan senyawa Alkoloid, Flavonoid, Terpenoid, Fenolik, dan saponin yang berperan dalam menghambat pertumbuhan bakteri Escherichia coli dan Staphylococcus aureus. Kemampuan ekstrak alga hijau Halimeda makroloba Decaisne dalam menghambat pertumbuhan bakteri Escherichia coli pada konsentrasi 10%, 20%, 40%, 60% dan 80%, dan Kemampuan ekstrak dalam menghambat bakteri Staphylococcus aureus pada konsentrasi 60% dan 80%.
Online Learning During the Covid-19 Pandemic: Preservice Teacher’s Perception Agus Muliadi; Saiful Prayogi; Farida Bahalwan; Wa Nirmala; Ni Nyoman Sri Putu Verawati
Jurnal Penelitian Pendidikan IPA Vol. 7 No. 3 (2021): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v7i3.787

Abstract

This study aims to explore preservice teacher’s perception of online learning during the Covid-19 pandemic. This study is a descriptive-exploratory research where respondents are 107 preservice teachers from four study programs that provide preservice teacher’s education, namely Mathematics Education, Biology Education, Physics Education, and Chemistry Education in the Mandalika University of Education–Indonesia. An instrument in the form of a questionnaire was used with a Likert scale and has been validated (expert validation). The research data were analyzed descriptively and statistically using the analysis of variance (ANOVA) test. The study results show that the preservice teacher’s perception of online learning modes during the Covid-19 pandemic is “quite” category, and there is no significant difference in preservice teachers' perceptions of online learning during the Covid-19 pandemic. Descriptions of the results of further studies are presented in this article
Inovasi Sabun Aromaterapi dari Daun Cengkeh Sebagai Media Booklet berbasis Android pada Pembelajaran Kimia Terapan Mala Nirmala; Kartini Rahman Nisa; Fauzia Hulopi
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 2 (2022): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i2.1167

Abstract

The essential oil content of cloves can be used as a base for aromatherapy soap. The manufacturing process is an example of implementing applied chemistry in everyday life that utilizes local Maluku wisdom. The purpose of this study was to create an aromatherapy soap innovation from clove leaves as a valid android-based booklet media in applied chemistry learning. This research was conducted by making aromatherapy soap from clove leaves and testing the quality of the soap and then making an android-based booklet with materials for making aromatherapy soap to support applied chemistry learning. The android-based booklet media that was created was validated by experts and then analyzed using the content validity coefficient formula according to Gregory. The results showed that aromatherapy soap from clove leaves met the quality standards of hand-washing liquid soap. And the best treatment of aromatherapy soap is at a concentration of 15% with a pH of 6.98, free alkali of 0.02%, and total plate count of 6.00 x 100. The results of the content validity analysis obtained information that the android-based booklet media in applied chemistry learning has met the criteria valid where the overall content validity coefficient is 75%. The resulting android-based booklet media can make it easier for students to learn applied chemistry online and offline
The Effectiveness of Discovery-Based Virtual Laboratory Learning to Improve Student Science Process Skills W. Nirmala; S. Darmawati
Journal of Education Technology Vol. 5 No. 1 (2021): February
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jet.v5i1.33368

Abstract

The inadequate condition of the laboratory, facilities, and infrastructure is the main obstacle to the lack of practicum activities. The purpose of this study was to examine the effectiveness of discovery-based virtual laboratory learning in improving science process skills of students. This type of research is a one-group-pretest-postest design research. Population and sample taken were students who took Basic Chemistry II course. The data collection method was carried out in a documentary manner and data analysis was in the form of calculating the percentage increase in science process skills and the criteria for the effectiveness of N-Gain. The results obtained were discovery-based virtual laboratory learning that succeeded in improving students' science process skills. Science process skills with high criteria increased by 91% and in the moderate category by 9%. Based on the N-Gain calculation, discovery-based virtual laboratory learning obtained an average percentage of effectiveness of 66% so it can be concluded that discovery-based virtual laboratory learning is quite effective in improving student science process skills. Through discovery-based virtual laboratory learning, student science process skills are more easily developed so that learning becomes more meaningful.
Inovasi TAMPAYANG sebagai Alat Pemurnian Air Laut di Desa Pulau Ay Kecamatan Banda Kabupaten Maluku Tengah Farida Bahalwan; Wa Nirmala; Kasliyanto Kasliyanto
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 6 (2022): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i6.1898

Abstract

Pulau Ay is an island located west of the Banda Islands, Central Maluku Regency, Maluku Province. Nearly 85% of the soil structure on Ay Island is filled with coral reefs, so it is very difficult to get clean water and the people of Ay Island only rely on rainwater to get clean water. The purpose of this research is to innovate to purify seawater into drinking water in the village of Pulau Ay and test the quality of the water produced. This research was conducted by designing a seawater purification device called Tampayang (Ay Island's drinking water station) consisting of a water storage barrel, a simple filter, a seawater distillation apparatus and a reverse osmosis (RO) membrane machine. The water produced from the purification of seawater is then analyzed in a laboratory according to Indonesian national standard and the regulation of the Minister of Health of 2010 concerning drinking water quality requirements. The results showed that the Tampayang tool produces 2 types of water, namely clean water and drinking water. After being tested both types of water meet the water quality requirements for consumption based on physical, chemical and biological parameters. The clean water and drinking water produced can be useful and consumed by the people of Ay Island as a solution to seawater utilization
IMPLEMENTASI MEDIA PEMBELAJARAN LABORATORIUM VIRTUAL DALAM MENDUKUNG PROGRAM MERDEKA BELAJAR PADA SEKOLAH-SEKOLAH DI KECAMATAN SALAHUTU KABUPATEN MALUKU TENGAH Wa Nirmala; Farida Bahalwan; Sriyati Sampulawa; Siti Darmawati; Asmi Ode; Rizky Fatmalasari L; Kasliyanto Kasliyanto; Abdullah Derlean; Pebrywati Watimury
JURNAL PENGABDIAN KEPADA MASYARAKAT Vol 29, No 2 (2023): APRIL-JUNI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpkm.v29i2.37694

Abstract

Learning from home (BDR) conditions make students more exposed to gadgets. This phenomenon is a challenge for teachers to further upgrade their competence in the use of technology. Today's learning requires teachers to develop and apply technology in conducting learning to motivate students. The solution that can be offered from partner problems is to increase the ability to use technology for teachers in junior and senior high schools in Salahutu District, Central Maluku Regency. One of the technologies that can be used in science learning in junior high and high school is a virtual laboratory. The method of activity is in the form of training and assistance in making a virtual laboratory which includes several stages, namely: the preparation stage, the team coaching stage, the training and mentoring stage, the closing stage. Based on the results of the satisfaction questionnaires that were distributed to participants during the evaluation, it was found that the average participants of the training and mentoring activities were able to operate macromedia flash software and create simple Virtual Laboratory applications so that Partner Schools still expect further activities to design IT-based learning media that innovative and can be used in online and offline learning.
Pengaruh pemberian larutan tembaga terhadap pertumbuhan tanaman bunga matahari (Helianthus annuus L.) Asmi Ode; Fauzia Hulopi; Pebrywati Watimury; Sriyati Sampulawa; Farida Bahalwan; Wa Nirmala; Abdullah Derlean
Jurnal Agrohut Vol 14 No 2 (2023): Agrohut
Publisher : Fakultas Pertanian Universitas Darussalam Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51135/agh.v14i2.262

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian larutan tembaga terhadap pertumbuhan tanaman bunga matahari (H. annuus L.). Penelitian ini dilakukan dengan menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari 4 konsentrasi perlakuan logam Cu yaitu P0: 0 mg/L, P1: 100 mg/L, P2: 200 mg/L dan P3: 500 mg/L, dengan 5 ulangan untuk setiap perlakuan sehingga didapatkan 20 sampel tanaman. Penelitian ini dilakukan dengan merendam biji bunga matahari kultivar dalam wadah berisi air hangat selama semalam kemudian ditanam pada polybag. Tanaman dipelihara secara intensif hingga berumur 2 minggu setelah tanam dan dilakukan aplikasi Cu. Logam Cu yang digunakan berupa garam CuSO4.5H2O. Pemberian larutan Cu dilakukan setelah tanaman mengalami aklimatisasi selama 1 minggu (tanaman berumur ± 5 minggu). Cu yang diaplikasikan berupa garam CuSO4.5H2O yang mengandung kurang lebih 25% ion Cu. Garam tersebut dilarutkan dalam aquades sebanyak 1L sesuai konsentrasi dan diberikan 4 kali dalam jangka waktu 2 minggu hingga larutan Cu habis. Larutan Cu sebanyak 250 ml disiramkan ke tanah disekitar tanaman secara hati-hati agar tidak kontak langsung dengan batang tanaman. Pada perlakuan kontrol tidak dilakukan penyiraman garam CuSO4.5H2O. Setelah pemberian Cu, dilakukan pengamatan dan pengukuran parameter pertumbuhan. Parameter pertumbuhan terdiri dari tinggi tanaman, jumlah daun, dan panjang akar tanaman. Data hasil pengamatan disajikan dalam bentuk gambar dan pengukuran akan dianalisis menggunakan analisis sidik ragam (ANAVA) dan diuji lanjut dengan DMRT (Duncan Multiple Range Test) dengan tingkat kepercayaan 95%. Hasil penelitian menunjukkan bahwa pemberian larutan Cu berpengaruh terhadap pertumbuhan tanaman bunga matahari. Semakin tinggi konsentrasi Cu mengakibatkan terhambatnya tinggi tanaman, penurunan jumlah daun, dan terhambatnya pemanjangan akar tanaman.
Co-Authors Abdullah Derlean Agus Muliadi Asmi Ode Farida Bahalwan Fauzia Hulopi Kasliyanto Ni Nyoman Sri Putu Verawati Nisa, Kartini Rahman Prayogi, Saiful Rizky Fatmalasari. L S. Darmawati Siti Darmawati Sriyati Sampulawa Watimury, Pebrywati