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All Journal Indonesian Journal of Cancer Chemoprevention Jurnal Kimia Riset Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Pengabdian Pada Masyarakat Bubungan Tinggi: Jurnal Pengabdian Masyarakat
Ulfa, Maria
Chemical Education Study Program, Faculty Of Teacher Training And Education, Sebelas Maret University, Jl. Ir. Sutami 36A, Surakarta 57126, Central Java Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, Universitas Gadjah Mada, S
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Education Engineering Materials Science & Nanotechnology Medicine & Pharmacology Physics Social Sciences Other

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Korelasi hasil karakterisasi XRD, N2 adsorpsi-desorpsi dan TEM pada Karbon Mesopori dari Gelatin Tulang Sapi Maria Ulfa
Jurnal Kimia Riset Vol. 1 No. 2 (2016): Desember
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (532.886 KB) | DOI: 10.20473/jkr.v1i2.3088

Abstract

Abstrak Artikel  ini mengkaji hubungan hasil karakterisasi dengan kualitas  karbon mesopori.  Kualitas struktur karbon mesopori teramati dengan jelas baik pada TEM, SAXRD dan nitrogen adsorpsi-desorpsi meskipun karbon mesopori. Dari hasil SAXRD, TEM dan nitrogen adsorpsi-desorpsi, karbon mesopori hasil sintesis memiliki luas permukaan spesifik dari 756 m2/g, total volume pori 0,999 cm3/g, rasio mesopori dari 81%, diameter pori rata-rata 5,2 nm dan  distribusi ukuran pori 4,06 dengan geometri mirip susunan tabung dengan formasi heksagonal. Langkah pengolahan data FFT dan program scion image serta penggunaan origin mampu secara detil dijelaskan untuk mendeteksi kualitas keteraturan struktur karbon mesopori hasil sintesis. Kata kunci : karakterisasi, TEM, XRD, N2-adsorpsi desoprsi, karbon mesopori
The Effect of Co-Administration of Telang Leaves Ethanolic Extract Towards Fluoxetin’s Sedative Effect on Male Balb/C Mice Based on Sleeping Duration Parameter Anif Nur Artanti; Maria Ulfah
Indonesian Journal of Cancer Chemoprevention Vol 6, No 1 (2015)
Publisher : Indonesian Society for Cancer Chemoprevention

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14499/indonesianjcanchemoprev6iss1pp7-11

Abstract

One of Telang plant’s advantages is its activity as sedative agent. Previous studies indicate that Telang plant has anticonvulsant activity on mice at certain dose. This study was conducted to find out the sedative effect of Telang plant, particularly its leaf, when being co-administered with fluoxetin. Phytochemical analysis was carried out qualitatively on Telang ethanolic extract leaves (TEE) to find out the content of chemical compound first.This study was an experimental research with post-test only control group design, employing male balb/c mice. The effect of Telang ethanolic extract co-administration with fluoxetin was observed. The parameter being used in the study was the duration of sleep. Analysis was done by comparing mice sleeping duration prior to administration of fluoxetin alone and in combination with Telang ethanolic extract. The data was then analyzed using SPSS 17.0 for Windows.The results showed that TEE contained tannin, saponin, and flavonoid compounds, and co-administration of TEE and fluoxetin at various doses could provide sedative effect on mice. The co-administration of 400 mg/kgBW extract and 15 mg/kgBW fluoxetin could provide the mean sleeping duration 43 minutes longer than positive control.Keywords:  telang leaves ethanol extract, fluoxetin, sleeping duration
Secondary School Science Teacher Response to Minimum Competency Assessment: Challenges and Opportunities Sri Yamtinah; Budi Utami; Mohammad Masykuri; Bakti Mulyani; Maria Ulfa; Ari Syahidul Shidiq
Jurnal Penelitian Pendidikan IPA Vol 8 No 1 (2022): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i1.1075

Abstract

Teachers have an essential role in preparing students for Minimum Competency Assessment (MCA) or Asesmen Kompetensi Minimum (AKM). It takes preparation, readiness, and a good teacher's perception of the AKM so that the implementation of this program goes well. This study aims to analyze teachers' perceptions in secondary schools related to the opportunities and challenges of implementing AKM. A total of 66 secondary school science teachers participated as respondents in this study. Respondents in this study were randomly selected based on their willingness to fill out a given survey. The data collection instruments were six open-ended questions. This instrument is distributed online using Google Forms. The data obtained were then analyzed qualitatively and quantitatively. The results of this study reveal that the majority of science teachers have the perception that AKM policy is appropriate and suitable for implementation. However, the availability of supporting facilities and ICT literacy of students and teachers is considered a challenge that must be met. On the other hand, AKM and National Assessment (NA) are considered opportunities to improve the quality of education both nationally and locally in schools. This research is expected to reference the perception of science teachers about the challenges and opportunities for implementing AKM policies in junior high schools
Hand Sanitizer dari Daun Mangga sebagai Upaya Menekan Penyebaran Pandemi Covid-19 di Wilayah Jebres dan Polokarto Maria Ulfa; Ida Setiarini; Ika Uswatun Hasanah; Kusumandari Kusumandari; Teguh Endah Saraswati
Jurnal Pengabdian Pada Masyarakat Vol 6 No 4 (2021)
Publisher : Universitas Mathla'ul Anwar Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30653/002.202164.900

Abstract

HAND SANITIZER FROM MANGO LEAVES AS AN EFFORT TO SUPPRESS THE SPREAD OF THE COVID-19 PANDEMIC IN THE JEBRES AND POLOKARTO REGIONS. Covid-19 is an international pandemic that still has many victims. The UNS Campus area is a vulnerable area because apart from being public, there are also many residents who live around the campus which can be a medium for spreading the virus. The implementation of the health protocol, one of which is washing hands with running water or using a hand sanitizer, is one of the preventive measures to prevent the spread of the virus. Synthetic hand sanitizers have a lot of impact, especially for people who are sensitive to chemicals such as alcohol or synthetic disinfectants. On the other hand, the use of hand sanitizers has an important position to suppress the spread of the virus because it has the power to deactivate proteins from the Covid-19 spike section. Therefore, a breakthrough is needed to make natural hand sanitizers that are cheaper and have long-term sustainability. One of the natural ingredients that have a high antibacterial content is mango leaves. Various studies have stated that the tannin content of mango leaves is around 1.0 mg/g capable of deactivating bacteria and viruses. Unfortunately, so far, mango leaves are not used much except as fertilizer and more is wasted as garbage. In addition, the long pandemic period has caused the community not to have large reserves of hand sanitizers for their daily needs. Therefore, in this community service, training on the manufacture of hand sanitizers was carried out in the area around the UNS campus to provide skills to the community in procuring hand sanitizers independently from the plants around them as well as providing stock of natural hand sanitizers for people who are sensitive to chemicals.
Penguatan Kemampuan Guru-Guru Kimia SMA di Surakarta dalam Menyiapkan Instrumen AKM Literasi Membaca dan Numerasi berbasis Sains Kimia Ari Syahidul Shidiq; Sri Yamtinah; Mohammad Masykuri; Maria Ulfa; Bakti Mulyani
Bubungan Tinggi: Jurnal Pengabdian Masyarakat Vol 4, No 4 (2022)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/btjpm.v4i4.6158

Abstract

Asesmen Kompetensi Minimum (AKM) merupakan bagian dari Asesmen Nasional yang merepresentasikan survey pengetahuan siswa dan kualitas Pendidikan Nasional. Pada AKM diukur kompetensi berpikir atau bernalar siswa ketika membaca teks (literasi) dan menghadapi persoalan yang membutuhkan pengetahuan matematika (numerasi). Selama ini guru-guru biasa menyusun instrumen tes yang berorientasi pada penguasaan materi, dan belum terbiasa untuk mengembangkan instrumen yang berorientasi pada literasi membaca dan numerasi. Terlebih, pada guru-guru Kimia yang dianggap memiliki kontribusi kecil pada keterampilan literasi dan numerasi. Oleh karena itu, pengabdian ini bertujuan untuk melakukan penguatan kemampuan guru-guru kimia SMA di Kota Surakarta dalam menyiapkan instrumen AKM literasi membaca dan numerasi berbasis sains kimia.  Kegiatan pengabdian akan dilakukan melalui pelatihan dengan bentuk penyuluhan, focus group discussion (FGD) dan pendampingan menyusun butir-butir soal instrumen literasi membaca dan numerasi berbasis konteks sains kimia. Sebanyak 33 orang guru kimia dari Surakarta berpartisipasi aktif sebagai peserta pelatihan. Berdasarkan hasil evaluasi terhadap program pengabdian yang dilakukan, sebanyak 63.6% peserta sangat setuju, dan 36.4% peserta setuju bahwa kegiatan yang dilakukan sangat sesuai dengan kebutuhan mereka. Selain itu, sebanyak 72.7% peserta sangat setuju, dan 27.3% setuju bahwa kegiatan pengabdian ini dapat meningkatkan pengetahuan dan keterampilan mereka untuk mengembangkan instrumen literasi membaca dan numerasi berbasis sains kimia. Hasil ini diharapkan dapat menjadi acuan bagi para guru kimia dan bidang lainnya untuk dapat mengembangkan instrumen AKM berbasis konteks materi pelajaran
Strengthening ASEAN STEAM Collaboration: Empowering Chemistry Teachers through Training on Developing STEAM-Based Assessment Instruments Sri Yamtinah; Bakti Mulyani; Mohammad Masykuri; Maria Ulfa; Ari Syahidul Shidiq
Bubungan Tinggi: Jurnal Pengabdian Masyarakat Vol 6, No 4 (2024)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/btjpm.v6i4.11686

Abstract

STEAM (Science, Technology, Engineering, Art, and Mathematics) is a learning approach that encourages students to think broadly about real-world problems. However, the limited knowledge of chemistry teachers about the STEAM-based learning and assessment process causes this approach to be rarely implemented. This service aims to train teachers' skills to develop STEAM-based assessment instruments. The workshop method is used with implementation stages including preparation, implementation, evaluation, and reporting. This activity was carried out in a hybrid manner, with presentations by lecturers from Universiti Sains Malaysia and Sebelas Maret University. Participants in this activity were 68 chemistry teachers from various regions of Indonesia. Test instruments totaling 15 questions in the pretest and posttest, as well as questionnaire instruments totaling 18 questions, were used to evaluate the results of this training. As a result, participants' knowledge and skills about STEAM learning increased after the training. In addition, as many as 44% of participants are very interested in implementing STEAM in the chemistry learning process in schools. As evaluation materials, participants gave suggestions to increase the explanation time and provide more examples of STEAM-based instruments.
Chemistry Textbook Analysis Based on Science Literacy Yuli Iswanti; Maria Ulfa; Sulistyo Saputro; Sri Yamtinah; Mohammad Masykuri; Bakti Mulyani; Ari Syahidul Shidiq; Agung Nugroho Catur Saputro
Jurnal Penelitian Pendidikan IPA Vol 10 No 6 (2024): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i6.4630

Abstract

This research is included in the type of qualitative descriptive research that is used to analyzing the content of science literacy in chemistry textbooks for class XI SMA Negeri in Surakarta. The book that was selected using the purposive sampling technique is textbook chemistry used by public high schools in Surakarta. The science literacy category consists of four categories, which is science as a body of knowledge, science as a way of investigation, science as a way of thinking, and the interaction of science, technology, and society. Category fulfillment results in science literacy in book A has a ratio of the first category: second category: third category: the fourth category is 5:2:3:0. The ratio in book B is 6:2:2:0, the ratio in books C and D are 7:1:1:0, and the ratio in book E is 7:0:2:0. From the results of the study, it can be concluded that book A is closest to the ideal standard of the ratio of science literacy categories according to Wilkinson (1999) which is 4:2:2:2.
Pembelajaran Berdiferensiasi: Analisis Literasi Kimia pada Materi Ikatan Kimia melalui Pendekatan Culturally Responsive Teaching Terintegrasi Etnokimia Salma Fauzia Wardani; Sri Yamtinah; Bakti Mulyani; Endang Susilowati; Maria Ulfa; Mohammad Masykuri; Ari Syahidul Shidiq
Jurnal Penelitian Pendidikan IPA Vol 10 No 4 (2024): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i4.6167

Abstract

This study aims to obtain information and analyze the chemical literacy profile of class X students of one of public high school in Surakarta on chemical bonding material after carrying out differentiation learning with Culturally Responsive Teaching integrated with ethnochemistry. This research used descriptive qualitative approach with post-test only design. The research was conducted on 36 students of class X at one of public high school in Surakarta during 2 meetings. The results of the study showed that the literacy level of students after learning was carried out there were 25% of students classified as high, 56% classified as medium, and 19% classified as low. Based on the results of the analysis on each indicator of chemical literacy, students showed very good levels on all indicators, namely content, context, high-level learning skills, and affective. Therefore, the level of chemical literacy of students is classified as good after learning is differentiated with Culturally Responsive Teaching integrated with ethnochemistry because learning becomes contextual, meaningful, and in accordance with student learning readiness.
Co-Authors Agung Nugroho Catur Saputro Anif Nur Artanti Annisa Nur Khasanah Ari Syahidul Shidiq Bakti Mulyani Bakti Mulyani Bayu Antrakusuma Budi Utami Dyah Puspitasari Endang Susilowati Endang Susilowati Farhah Nayla Fawzia Icha Kurnia Wati Ida Setiarini Iip Izul Falah Ika Uswatun Hasanah Indriana Kartini Isma Aziz Fakhrudin Kusumandari, Kusumandari Meida Wulan Sari Mohammad Masykuri Salma Fauzia Wardani Sri Yamtinah Sulistyo Saputro Teguh Endah Saraswati Wega Trisunaryanti Yuli Iswanti