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Synthesis and Photoluminescence Properties of Alkylbromoporphyrin Ari Yustisia Akbar; Tania Avianda Gusman
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 6, No 3 (2021): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v6i3.56927

The usage of porphyrin as a light-harvesting chromophore is considered as one of the keys to obtaining low-cost and high-efficiency dye-sensitized solar cell (DSSC). In this paper, a novel porphyrin, 5,10,15-tris(nitrophenyl)-20-(p-(11-bromo)dodecoxyphenyl))porphyrin, having a long alkyl chain and three nitro groups was synthesized. The nitro groups serve as anchoring groups to TiO2 surfaces and long alkyl chain prevents unwanted dye aggregation. The porphyrin was synthesized by condensation of p-(12-Bromododecoxy)benzaldehyde and pyrrole in propionic acid according to an adaptation of the general Rothemund method [1]. p-(12-Bromododecoxy)benzaldehyde was synthesized by nucleophilic substitution reaction between 4-hydroxybenzaldehyde and 1,12-dibromododecane in acetone. The reaction products were analyzed by 1H-NMR and mass spectroscopy. The absorption and fluorescence spectra of the porphyrin were also recorded. As results, the absorption spectrum of the porphyrin consists of a strong Soret and four weak Q-band. Compared to 5,10,15-tris(nitrophenyl)-20-(p-(11-bromo)dodecoxyphenyl))porphyrin spectrum, there is no wavelength shifting because of the incorporation of the alkyl chain. The fluorescence spectrum of the porphyrin shows two characteristic emission bands and the intensity ratio of those emission bands is always constant when irradiated by different excitation wavelength related to Soret and Q-band.

Assistance in Making Natural Hand Sanitizer from Lemongrass Stems and Leaves in Kepuh Village, Palimanan District, Cirebon Regency Dewiantika Azizah; Indah Karina Yulina; Tania Avianda Gusman; Mutiara Dwi Cahyani; Dewi Nurdiyanti; Banu Kisworo
ABDIMAS: Jurnal Pengabdian Masyarakat Vol. 5 No. 2 (2022): ABDIMAS UMTAS: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Universitas Muhammadiyah Tasikmalaya

The COVID-19 pandemic left many casualties. The virus attacks the human immune system, which has an impact on physical health, such as: (a) pneumonia, (b) respiratory failure, and (c) death. Hands are one of the parts of the human body that are susceptible to viruses and are the easiest medium for spreading them. Therefore, as a preventive measure to prevent the spread of the virus, hands must always be clean and sterile, which is done by using a hand sanitizer, so that the cleaning process is more effective and efficient. The purpose of this community service activity is to provide awareness to the community to prevent the spread of the virus through the habit of hand sterilization. The target of the service is the residents of the village of Kepuh with the stages of activity, namely preparation, implementation, and evaluation. Preparations were carried out by conducting a preliminary survey to see conditions in the field and obtaining permits for routine mosque activities. Implementation is carried out by cleaning, spraying, and washing mukena. Evaluation of activities is carried out for each stage by collecting and concluding data from each stage of activity. The results of the activity are the washing of mukena, and the cleanliness of the mosque, as well as disinfecting the entire inside and outside of the mosque. The organizers of the activity are lecturers and students and are assisted by the mosque's cleaning staff.

Sosialisasi Sekolah Alam Di SD Negeri Cibunut Kabupaten Majalengka Dengan Model Pembelajaran STEM Pasca Pandemic Covid-19 Arif Nurudin; Tania Avianda Gusman; Susanti Susanti
Humanism : Jurnal Pengabdian Masyarakat Vol 3, No 3 (2022): Desember
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/hm.v3i3.16089

Pandemik Covid-19 memberikan dampak bagi pendidikan dasar di Indonesia. Pendidikan dasar adalah suatu pendidikan untuk mengembangkan kualitas manusia melalui pendidikan yang terarah, terencana, dan berkesinambungan. Masyarakat menyekolahkan anak mereka di sekolah dasar agar anak tersebut dapat memiliki kepribadian yang baik melalui penguasaan akademik, spiritual, dan emosional yang cerdas. Proses pembentukan ini dapat dilakukan secara sistematis dan bertahap yang disesuaikan dengan daya individual peserta didik. Mengingat hal ini, sekolah dasar memiliki peranan penting dalam proses pembelajaran. Tujuan dari kegiatan pengabdian ini yaitu meningkatkan kemampuan literasi sains dengan menggunakan pendekatan pembelajaran STEM untuk mempersiapkan peserta didik dalam mengikuti pendidikan lanjutan. Hasil yang diperoleh dari kegiatan pengabdian ini adalah pengembangan dan implementasi pendekatan STEM dan kurikulum sains dalam pelaksanaan belajar mengajar di sekolah alam paska pandemik COVID-19. Disimpulkan bahwa pendekatan pembelajaran STEM akan membentuk karakter peserta didik karena STEM menuntut pola pikir peserta didik menjadi pemecah masalah, inventor, inovator, melek teknologi, membangun kemandirian, berpikir logis dan kritis serta mampu menghubungkan ilmu yang diperolehnya dengan kehidupan sehari-hari.Kata Kunci: Covid-19, Sains, Sekolah Alam, STEM.

Desain dan Uji Validitas e-Modul Perkuliahan Kimia Fisika Berbasis Problem Based Learning Mutiara Dwi Cahyani; Tania Avianda Gusman
Orbital: Jurnal Pendidikan Kimia Vol 7 No 1 (2023): Orbital: Jurnal Pendidikan Kimia
Publisher : Chemistry Education Department of Education and Teaching Faculty

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/ojpk.v7i1.17499

The rapid development of technology requires education to participate in the use of technology as an innovation in learning. The purpose of this research is to develop and test a surface tension e-module based on Problem Based Learning in the Chemistry Physics course. The research method used in this study is Research and Design using the ADDIE development model which is limited to the analysis, design and development stages. The instrument used to determine the feasibility of the e-module is a questionnaire to test the validity of media experts and material experts. Respondents for testing the validity of media experts and material experts were educators in university and high schools. The feasibility level of the e-module is based on the validation of material experts by 80% which states that the quality of the material in the e-module is feasible from the material aspect and is based on problem based learning, the validation of media experts is 86.7% which states that the quality of the display on the e-module is very decent from the aspect of the media. This shows that the surface tension e-module based on problem based learning is feasible to use and implement in the learning process for university and high school levels.

Pelatihan Pembuatan Minuman Teh Herbal dari Limbah Kulit Bawang Merah sebagai Minuman Jamu Tradisional Tania Avianda Gusman; Sintha Prima Widowati Gunawan; Zakiyyah; Arif Nurudin; Dewiantika Azizah; Susanti
Jurnal SOLMA Vol. 12 No. 1 (2023)
Publisher : Universitas Muhammadiyah Prof. DR. Hamka (UHAMKA Press)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/solma.v12i1.11311

Background: Bawang merah merupakan salah satu jenis sayuran yang manfaatnya banyak digunakan oleh masyarakat Indonesia. Bawang merah mempunyai kandungan sulfur compound seperti Allyl Propyl Disulphida (APDS) dan flavonoid seperti quercetin yang dipercaya bisa mengurangi resiko kanker, penyakit jantung dan kencing manis. Kulit bagian luar bawang yang mengering dan kerap berwarna kecoklatan kaya serat dan flavonoid serta antibakteria terhadap Stapylococcus aureus dan E.coli. Bawang merah memiliki senyawa aktif sehingga dapat dimanfaatkan sebagai teh herbal dan salah satu metode penanganan terhadap limbah organik dikarenakan limbahnya menimbulkan pencemaran lingkungan berupa aroma yang tidak sedap. Tujuan dari pengabdian untuk mengetahui pengolahan limbah kulit bawang merah menjadi teh herbal serta identifikasi tingkat kesukaan masyarakat terhadap teh herbal dari limbah kulit bawang merah sebagai minuman jamu tradisional. Metode: Diujicobakan kepada 20 orang responden yang berasal dari sekelompok ibu-ibu PKK Desa Cibunut Kecamatan Argapura Kabupaten Majalengka, dengan menggunakan pemilihan sederhana terhadap limbah kulit bawang yang masih dapat digunakan sebagai raw material untuk pembuatan teh herbal. Hasil: Hasil metode survei kelayakan menunjukkan hasil yang baik bahwa teh herbal ini disukai dan untuk diterima dilingkungan masyarakat. Keberlanjutan program ini yaitu produk ini akan tetap melanjutkan produksi di setiap tahunnya yang dipegang oleh kelompok ibu-ibu PKK Desa Cibunut. Kesimpulan: Limbah kulit bawang merah dapat dimanfaatkan sebagai minuman jamu tradisional.

The Effect of STEM Integrated Problem-Based Learning Model on Students' Critical Thinking Skills on Electrolyte and Non-Electrolyte Solution Materials Tania Avianda Gusman; Novitasari Novitasari; Indah Karina Yulina
Jurnal Penelitian Pendidikan IPA Vol 9 No 10 (2023): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i10.5163

This study aims to study the effect of problem-based learning integrated STEM and non-STEM learning models in improving critical thinking skills and their differences of learning process. The method used is a quasi-experimental design with a pretest-posttest non-equivalent control design. The population of all students in class X science with non-probability sampling was 36 students each. The instruments used were observation sheets, description questions, and questionnaires. The results showed that the average percentage of STEM-integrated problem-based learning implementation was 96.00% and 93.00% without STEM, both of which showed very good results. The average critical thinking ability of students in the STEM integrated problem-based learning class is 71% and 59% without STEM, this is shown by the average value of the STEM integrated problem-based learning classes is greater than without STEM. The linear regression test using STEM integrated problem-based learning has a positive effect on critical thinking skills 2.251, t-count > t-table (3.756 > 2.032), Ho is rejected Ha is accepted, and without STEM there is no effect on critical thinking skills, with a t-count <t-table (2.016 < 2.032). The results showed that the STEM-integrated problem-based learning model had a positive effect on students' critical thinking skills on electrolyte and non-electrolyte solution materials.

The Application of Think Talk Write (TTW) Learning Model to Improve Students' Communication Skills Dewiantika Antika Azizah; Indah Karina Yulina; Siti Fatonah; Tania Avianda Gusman
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.v8i6.2331

Communication skills are one of the mandatory skills that students must master for the development of the 21st century. The use of innovative learning models can also help students to understand the concept of material. The purpose of this study was to improve the communication skills of class X SMK students on the material of the atomic structure and the periodic table of elements by using the Think Talk Write (TTW) learning model. The research subjects used were students of class X Pharmacy in the academic year 2022/2023. Research data used on communication skills through observation sheets and study documentation and for learning outcomes used through description tests for pretest and posttest. The data analysis used was quantitative with a quasi-experimental design research type. The results showed that there was an increase in communication skills through observation sheets with an average value of 80.96 in the high category and documentation studies with an average value of 73.21 including the high category. The use of the Discovery Learning model showed that the students' communication skills had increased with an average score of 76.44 on the observation sheet in the high category and the study of documentation with an average value of 70.12 was included in the high category. The conclusion was that the application of the Think Talk Write (TTW) learning model was more effective than the application of the Discovery Learning model, so the researchers recommend to use this learning model to help improve students' communication skills

Pelatihan Pembuatan Minuman Teh Herbal dari Limbah Kulit Bawang Merah sebagai Minuman Jamu Tradisional Tania Avianda Gusman; Sintha Prima Widowati Gunawan; Zakiyyah; Arif Nurudin; Dewiantika Azizah; Susanti
Jurnal SOLMA Vol. 12 No. 1 (2023)
Publisher : Universitas Muhammadiyah Prof. DR. Hamka (UHAMKA Press)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/solma.v12i1.11311

Background: Bawang merah merupakan salah satu jenis sayuran yang manfaatnya banyak digunakan oleh masyarakat Indonesia. Bawang merah mempunyai kandungan sulfur compound seperti Allyl Propyl Disulphida (APDS) dan flavonoid seperti quercetin yang dipercaya bisa mengurangi resiko kanker, penyakit jantung dan kencing manis. Kulit bagian luar bawang yang mengering dan kerap berwarna kecoklatan kaya serat dan flavonoid serta antibakteria terhadap Stapylococcus aureus dan E.coli. Bawang merah memiliki senyawa aktif sehingga dapat dimanfaatkan sebagai teh herbal dan salah satu metode penanganan terhadap limbah organik dikarenakan limbahnya menimbulkan pencemaran lingkungan berupa aroma yang tidak sedap. Tujuan dari pengabdian untuk mengetahui pengolahan limbah kulit bawang merah menjadi teh herbal serta identifikasi tingkat kesukaan masyarakat terhadap teh herbal dari limbah kulit bawang merah sebagai minuman jamu tradisional. Metode: Diujicobakan kepada 20 orang responden yang berasal dari sekelompok ibu-ibu PKK Desa Cibunut Kecamatan Argapura Kabupaten Majalengka, dengan menggunakan pemilihan sederhana terhadap limbah kulit bawang yang masih dapat digunakan sebagai raw material untuk pembuatan teh herbal. Hasil: Hasil metode survei kelayakan menunjukkan hasil yang baik bahwa teh herbal ini disukai dan untuk diterima dilingkungan masyarakat. Keberlanjutan program ini yaitu produk ini akan tetap melanjutkan produksi di setiap tahunnya yang dipegang oleh kelompok ibu-ibu PKK Desa Cibunut. Kesimpulan: Limbah kulit bawang merah dapat dimanfaatkan sebagai minuman jamu tradisional.

Pengolahan Rumput Laut Sebagai Bahan Baku Makanan dan Minuman untuk Meningkatkan UMKM di Kepulauan Pari Tania Avianda Gusman; Gufron Amirullah; Anisa Mutiara
Jurnal SOLMA Vol. 12 No. 3 (2023)
Publisher : Universitas Muhammadiyah Prof. DR. Hamka (UHAMKA Press)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/solma.v12i3.13257

Background: Pulau Pari terkenal dengan budidaya rumput laut. Namun pengolahan rumput laut masih terbatas dan belum memberikan ciri khas dari daerah tersebut. Tujuannya untuk melatih kemampuan dan meningkatkan pendapatan UMKM dan Ibu-Ibu Pulau Pari dengan memanfaatkan hasil rumput laut sebagai bahan baku utama untuk berbagai macam produk makanan dan minuman. Metode: Pelaksanaan egiataan ini, meliputi: (1) Sosialisasi, (2) pelaksanaan pelatihan (pada tahap ini mitra melihat demonstrasi pengolahan atau percontohan dari produk olahan rumput laut seperti: ice cream, rumput laut, nugget rumput laut, puding rumput laut dan es agar-agar rumput laut, teknik pengemasan), (3) Evaluasi berupa wawancara kepada responden. Hasil: Produk olahan rumput laut diantaranya ice cream, nugget, puding dan Es agar-agar rumput laut. Kesimpulan: Respon positif mitra untuk melanjutkan produksi olahan rumput laut untuk dipasarkan.

LEARNING STRATEGIES WHILE PLAYING AS A LEARNING METHOD FOR CHILDREN OF KAMPUNG BARU GUIDANCE STUDIO Dewi Nurdiyanti; Tania Nurlia Hermawati; Tania Avianda Gusman; Indah Karina Yulina; Arif Nurudin; Muhammad Nana Trisolvena; johan; arie susetio utami; Norman Bastian; Desy Lusiana; Mutiara Dwi Cahyani
Jurnal Abdisci Vol 1 No 7 (2024): Vol 1 No 7 Tahun 2024
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/abdisci.v1i7.263

Learning is developing knowledge, skills, and attitudes interactively. Learning while playing by children can provide opportunities to explore, practice, and get a variety of concepts. Learning while playing is fun and can attract and motivate children to achieve learning goals optimally. Learning activities while playing are carried out with a feeling of pleasure, without coercion, but have a method that is expected to create results that promote good development for children. Play activities are one of the stimulus factors in children's intelligence

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