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Papers by Boy Baunsele

Research paper thumbnail of Efektivitas Model Pembelajaran Diskusi Kelas Strategi Beach Ball Terhadap Hasil Belajar IPA Peserta Didik

Jurnal PTK dan Pendidikan

The cause of the low student learning outcomes is the learning process in the classroom which is ... more The cause of the low student learning outcomes is the learning process in the classroom which is still teachercentered. The learning model that can increase student activity in class is the Beach Ball strategy class discussion model. The purpose of this study was to determine the effectiveness of the Beach Ball strategy class discussion model on science learning outcomes for Grade VIII students on the subject of the human digestive system at SMPN 2 Kupang Tengah. The design used in this research is nonequivalent control group design. The results showed that the average student learning outcomes in the experimental class obtained a pretest score of 41.86 which increased to 80.31 after being given a posttest. Whereas in the control class the pretest score was 45.47 which increased to 74.11 after being given the posttest. Based on the results of the one-way Anacova test, a probability value (sig) of 0.000 is lower than the set value of 0.05. This shows that Ha (Beach Ball strategy class discussion model is effective on student learning outcomes) is accepted and H0 the Beach Ball strategy class discussion model is not effective on student learning outcomes) is rejected. Based on the results of data analysis, it can be concluded that the Beach Ball strategy class discussion model is effective on the learning outcomes of class VIII students at SMPN 2 Kupang Tengah.

Research paper thumbnail of Phytochemical Content of Fresh Purple Sweet Potato (Ipomea batatas L.) Extract As Acid-Base Titration Indicator

JURNAL SAINS NATURAL

Research has been carried out to examine the extraction and application of purple sweet potato tu... more Research has been carried out to examine the extraction and application of purple sweet potato tuber extract as an indicator of acid-base titration. Purple sweet potato tuber extract was obtained by extracting fresh tubers using ethanol 95% medical grade (PSPTE-95%) and ethanol 96% analytical grade (PSPTE-96%). Three variations of the maceration stage extracted samples. The extract was used for a phytochemical test and applied as an indicator for acid-base titration. Based on the research conducted, the rendement extract was extracted by ethanol 95% medical grade (PSPTE-95%) for the three stages of maceration are 4.34%, 4.76%, and 5.64%, the rendement extract was extracted by ethanol 96% analysis grade (PSPTE-96%) for the three stages of maceration are 7.09%, 12.16%, and 20.43%. PSPTE-95% and PSPTE-96% contain flavonoids, tannins, alkaloids, and saponins. PSPTE-95% and PSPTE-96% can be applied as indicators for titration of HCl solution with NaOH solution and HCl solution with NH4OH...

Research paper thumbnail of Penguatan Literasi bagi Siswa-Siswi SDK Kristus Raja Baun Kabupaten Kupang-NTT pada Masa Pandemi Covid-19

Jurnal Mandala Pengabdian Masyarakat

Pandemi Covid-19 menyebabkan perubahan dari semua segi kehidupan, temasuk bidang pendidikan. Pemb... more Pandemi Covid-19 menyebabkan perubahan dari semua segi kehidupan, temasuk bidang pendidikan. Pembelajaran online yang ditawarkan mengharuskan pembelajaran tanpa adanya interaksi langsung antara guru dan siswa di Sekolah Dasar Katolik (SDK) Kristus Raja Baun. Hal ini menyebabkan banyak siswa yang kesulitan dalam hal membaca. Pendampingan dan peningkatan budaya literasi yang dilaksanakan oleh mahasiswa Universitas Katolik Widya Mandira menjadi salah satu solusi untuk membantu anak-anak SDK Kristus Raja Baun. Setelah melalui pendampingan di sekolah maupun Grup Belajar Sore (GBS), diperoleh hasil pengakuan dari guru dan orang tua bahwa terjadi perubahan kebiasaan dari para siswa di rumah dan disekolah. Para siswa cenderung untuk mencari lebih banyak sumber bacaan untuk dibaca. Hasil lain yang diperoleh yaitu para siswa semangat untuk menceritakan kembali cerita yang mereka baca serta interaksi positif dari para siswa selama pembelajaran. Peran guru, orang tua dan masyarakat sangat di...

Research paper thumbnail of Penyesuaian Anggaran Dasar dan Anggaran Rumah Tangga Bumdes Ina Huk Berdasarkan Peraturan Pemerintah Nomor 11 Tahun 2021 dan Peraturan Menteri Desa Pembangunan Daerah Tertinggal dan Transmigrasi Nomor 3 Tahun 2021

Jurnal Kreativitas Pengabdian Kepada Masyarakat (PKM)

ABSTRAK Badan Usaha Milik Desa (BUMDes) sebelumnya didefinisikan hanya sebagai badan usaha. Namun... more ABSTRAK Badan Usaha Milik Desa (BUMDes) sebelumnya didefinisikan hanya sebagai badan usaha. Namun setelah Undang-Undang Cipta Kerja disahkan, BUMDes merupakan badan usaha yang berbadan hukum. Konsekuensinya ada beberapa perubahan regulasi dan kelengkapan dokumen yang dituntut untuk pengurusan badan hukum BUMDes. Salah satunya yakni penyesuaian Anggaran Dasar (AD)/ Anggaran Rumah Tangga (ART) BUMDes. AD/ART BUMDes merupakan rujukan peraturan dasar dan turunan dalam pengelolaan BUMDes. Tantangan dalam penyusunan AD/ART yakni tidak semua warga desa, bahkan Pemerintah Desa dan Pengurus BUMDes paham proses penyusunan, substansi AD/ART, serta struktur dalam AD/ART. Karena itu, pelatihan penyusunan AD/ART sesuai regulasi baru dibutuhkan untuk memperbaiki, sekaligus menyepakati poin substansial dalam isi AD/ART BUMDes. Kegiatan ini dilakukan di LPPM Universitas Katolik Widya Mandira yang melibatkan 15 orang peserta dari perwakilan pengurus BUMDes Ina Huk, pemerintah desa, BPD, pelaku usaha,...

Research paper thumbnail of Pelatihan Laporan Keuangan: Kinerja BUMDes di Desa Tunbaun

I-Com: Indonesian Community Journal

Organisasi yang menggunakan anggaran harus menyediakan pelaporan keuangan secara transparan dan a... more Organisasi yang menggunakan anggaran harus menyediakan pelaporan keuangan secara transparan dan akuntabel kepada pemangku kepentingan utama. Pendirian usaha desa meningkatkan roda perekonomian dalam desa. Usaha desa harus membangun sistem agar saling menguntungkan antar unit bisnis. Tujuan dari Pengabdian Kepada Masyarakat (PKM) ini adalah membuat para pengurus dan pengelola BUMDes menjadi profesional dalam hal mengelola laporan keuangan. Metode kegiatan pengabdian masyarakat berupa ceramah, diskusi, tanya jawab, dan latihan terkait pengelolaan keuangan BUMDes. Peserta pelatihan BUMDes tentang pengelolaan keuangan meliputi kepala desa, lembaga desa, dewan penasihat desa dan pengurus BUMDes di desa Tunbaun. Peserta berperan aktif dalam mengikuti pelatihan ini, minat peserta dalam mempelajari laporan keuangan sangat tinggi. Hasil evaluasi menunjukkan dari aspek materi, ketepatan waktu dan pemateri serta diskusi sudah sesua dengan kebutuhan peserta. Sebagai tindak lanjut keberlanjutan ...

Research paper thumbnail of Perbandingan Hasil Belajar Peserta Didik Dengan Menerapkan Model Pembelajaran Free Discovery Dan Guided Discovery Pada Materi Hukum-Hukum Dasar Kimia Kelas X Ipa

Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia

Penelitian ini dilakukan untuk mengetahui hasil belajar dan ada tidaknya perbedaan hasil belajar ... more Penelitian ini dilakukan untuk mengetahui hasil belajar dan ada tidaknya perbedaan hasil belajar peserta didik kelas X IPA 1 dan X IPA 2 pada materi hukum-hukum dasar kimia jika menggunakan model pembelajaran yang berbeda pada tiap kelas yaitu model pembelajaran Free Discovery dan Guided Discovery. Jenis penelitian ini adalah deskriptif dan komparatif. Sampel dalam penelitian ini adalah kelas X IPA 1 dan X IPA 2,Teknik pengumpulan data yakni observasi dan tes. Teknik analisis data yang digunakan yakni analisis deskriptif dan statistik, penelitian ini dilaksanakan di SMA Negeri 1 Rote Timur. Hasil analisis diperoleh: Hasil belajar peserta didik kelas X IPA 1 dengan menerapkan model pembelajaran Free Discovery tuntas dengan nilai akhir yang diperoleh yaitu 85,78, hasil belajar peserta didik kelas X IPA 2 dengan menerapkan model pembelajaran Guided Discovery tuntas dengan nilai akhir yang diperoleh yaitu 88,18, tidak terdapat perbedaan hasil belajar peserta didik dengan menerapkan mode...

Research paper thumbnail of The Penggunaan Sabut Kelapa Teraktivasi NaOH sebagai Adsorben Metilen Biru

Kovalen: jurnal riset kimia, Apr 21, 2023

Research paper thumbnail of Aplication of Turmeric Rhizome Pigmen as Acid-Base Titration Indicator

Sains Natural, Oct 31, 2022

Content from this work may be used under the terms of the a Creative Commons Attribution-ShareAli... more Content from this work may be used under the terms of the a Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0

Research paper thumbnail of Penguatan Kapasitas Pengelolaan BUMDes Di Desa Pariti, Kecamatan Sulamu Kabupaten Kupang-NTT

Bakti Cendana

Badan Usaha Milik Desa (BUMDes) merupakan suatu badan usaha berbadan hukum, yang bertujuan untuk ... more Badan Usaha Milik Desa (BUMDes) merupakan suatu badan usaha berbadan hukum, yang bertujuan untuk dapat meningkatkan perekonomian desa khususnya untuk peningkatan kesejahteraan masyarakat. Kegiatan penguatan kapasitas pengelolaan BUMDes dan sharing pengalaman pengelolaannya dalam kegiatan pengabdian pada masyarakat ini, bertujuan untuk dapat memberikan pengetahuan dan pengalaman baru bagi masyarakat. Kegiatan ini dilaksanakan di Desa Pariti, Kecamatan Sulamu, Kabupaten Kupang. Kegiatan ini diikuti oleh 20 oang peserta diantaranya Pemerintah Desa, pengurus BUMDes Gempar dan tokoh masyarakat. Metode pelaksanaan berupa sosialisasi melalui ceramah dan diskusi, sharing pengalaman dengan Kepala Desa Hadakewa serta hasil tes kemampuan (pre test dan post test). Kesimpulan dari hasil kegiatan ini yaitu terdapat peningkatan kemampuan terhadap substansi dan sistem tata kelola BUMDes. Kedepannya kegiatan ini dapat dilanjutkan dengan menghadirkan narasumber-narasumber yang telah sukses mengelola ...

Research paper thumbnail of Pelatihan Keuangan Bumdes: Penyusunan Proposal Usaha di Kecamatan Kupang Barat

Jurnal Kreativitas Pengabdian kepada Masyarakat, Nov 1, 2022

Badan Usaha Milik Desa (BUMDes) dikategorikan menjadi usaha desa yang berpotensial untuk dikemban... more Badan Usaha Milik Desa (BUMDes) dikategorikan menjadi usaha desa yang berpotensial untuk dikembangkan menjadi penggerak ekonomi desa. Sosialisasi cara menyusun proposal usaha pada kegiatan pelatihan bagi BUMDes dalam rangka kegiatan pengabdian masyarakat berniat untuk menambah pengetahuan dan keterampilan penyusunan proposal usaha. Kegiatan dilaksanakan di Kecamatan Kupang barat pada dua desa yaitu Desa Tablolong dan Desa Oenaek, pesertanya terdiri dari pengurus Badan Usaha Milik Desa (BUMDes), pemerintah desa, Badan Pengawas Desa, tokoh masyarakat, Unit Mikro Kecil Menengah (UMKM), dan kelompok anak muda berjumlah 20 orang. Metode yang digunakan adalah penyampaian materi berupa ceramah, diskusi dan simulasi. Kesimpulan dari hasil kegiatan menunjukkan kegiatan sosialisasi mendorong pengurus BUMDes dan menambah pengetahuan serta keterampilan menyusun proposal usaha. Kegiatan ini kedepannya dapat dilanjutkan dengan pelatihan dan bimbingan teknis dalam penyusunan proposal usaha

Research paper thumbnail of Kinetic Study of Blue Methylene Adsorption Using Coconut Husk Base Activated

Indo. J. Chem. Res.

Blue methylene is a cationic dye. It is usually as in various industries. The waste of blue methy... more Blue methylene is a cationic dye. It is usually as in various industries. The waste of blue methylene can reduce the environmental balance, especially for aquatic biota, by inhibiting the penetration of sunlight into the water. The experiment used the most natural ingredients and methods to minimize the existence of the dye. In this research, coconut husk was activated with NaOH solution and then used for blue methylene adsorption. The coconut husk started aims to reduce the pollution of the adsorbent to increase the adsorption capacity. The study result showed the optimum adsorption of blue methylene at pH 7 for 75 minutes of adsorption with the capacity adsorption of 1.41 mg g-1. The development of the kinetic study described the adsorption process according to a second-order pseudo reaction kinetic model with the constant adsorption rate of 2.54 x 10-4 g mg-1 minute-1.

Research paper thumbnail of Improving the pedagogic competence of Pandhega Jaya Christian High School teachers through making learning videos

Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang

The development of technology today has had a very significant impact in the world of education, ... more The development of technology today has had a very significant impact in the world of education, one of which is the creation of innovative learning media so that it can be a solution for teachers in creating a more interesting learning atmosphere. In line with this, teachers must be able to adapt, one of which is increasing their competence, especially pedagogic competence. The objectives of this activity are 1) to improve teacher learning and creativity in preparing media; and 2) solving problems faced by teachers in making learning videos; and 3) introducing software/applications that are easy to use in making learning videos. This service activity was carried out at Pandhega Jaya Christian High School as a partner school. The method of service used is in the form of training. The stages of training activities include: preparation, implementation, monitoring and evaluation. The result of this activity is an increase in the ability of teachers to use technology-based media. This c...

Research paper thumbnail of Phytochemical Screening and TLC Profiling of Combination Extracts of Avocado (Persea americana Mill.) and Papaya (Carica papaya) Leaves from Timor Island

Indo. J. Chem. Res.

Traditionally in the village of Alor, East Nusa Tenggara Province, a combination of avocado and p... more Traditionally in the village of Alor, East Nusa Tenggara Province, a combination of avocado and papaya leaves is often used to treat malaria. To be able to be developed as an ingredient in traditional medicine, it is necessary to conduct preliminary research to determine the content of secondary metabolites contained in the combination of avocado and papaya leaves. This study aims to determine the secondary metabolites contained in avocado and papaya leaves through phytochemical screening and Thin Layer Chromatography (TLC) analysis. Extraction was carried out using methanol solvent by maceration, and the extract yield was 91.4%. Testing the content of secondary metabolites in avocado and papaya leaf extracts was carried out by phytochemical screening. Furthermore, the TLC test was carried out to confirm the presence of a positive group of compounds on phytochemical screening, and to determine the chromatographic profile of the extract. After being tested by phytochemical and TLC an...

Research paper thumbnail of Pembelajaran Quantum Teaching Terhadap Hasil Belajar Siswa Kelas VII SMP Katolik Sint Aloysius Niki-Niki Kabupaten Timor Tengah Selatan

EduMatSains : Jurnal Pendidikan, Matematika dan Sains

This study aims to determine the effect of the Quantum Teaching model on the learning outcomes of... more This study aims to determine the effect of the Quantum Teaching model on the learning outcomes of seventh grade students of Sint Aloysius Niki-Niki Catholic Middle School. This type of research is quantitative research with a quasi-experimental method and the research design used is the Nonrandomized Control group Pretest-Posttest Design. The population in this study were all seventh grade students of Sint Aloysius Niki-Niki Catholic Middle School. The data analysis technique used descriptive analysis and inferential analysis. The results showed that the post test score in the experimental class that applied the Quantum Teaching model was higher, namely 86.37 compared to the control class who applied the conventional learning model, namely 69.13. Anacova test results show the calculated F value is 0,000 or less than 0.05. This shows that H0 which states that there is no effect of the Quantum Teaching model on the learning outcomes of seventh grade students of Sint Aloysius Niki-Niki...

Research paper thumbnail of Pendampingan Guru Dalam Mengimplementasikan Perangkat Pembelajaran IPA SMP Tahap Research Lesson dan Lesson Discussion Dalam Sistim LSLC

Kegiatan Program Kemitraan Masyarakat (PKM) ini dilakukan di SMPK Sint Vianney yang beralamat di ... more Kegiatan Program Kemitraan Masyarakat (PKM) ini dilakukan di SMPK Sint Vianney yang beralamat di JLN. I Gusti Ngurah Rai, Kelurahan Kampung Baru, Kecamatan Kota Soe Kabupaten TTS, Provinsi NTT, dan merupakan kelanjutan dari kegiatan PKM yang berjudul “Pemberdayaan guru dalam pengembangan perangkat pembelajaran IPA SMP pada tahap Lesson Plan dalam sistim LSLC”. PKM ini dilakukan dengan tujuan untuk mengatasi masalah di sekolah mitra berupa implementasi proses pembelajaran di kelas yang selama ini dilakukan secara individu oleh guru sehingga masalah dalam proses pembelajaran belum teridentifikasi dengan baik, dan solusinya belum didiskusikan dan diselesaikan secara bersama. Hal yang dilakukan dalam PKM ini adalah mendampingi guru IPA di sekolah mitra untuk mengimplementasikan perangkat pembelajaran yang memenuhi standar proses, dan instrumen penilaian aspek pengetahuan berorientasi kemampuan berpikir tingkat tinggi/hight order thingking (HOT), serta instrumen penilaian aspek keteram...

Research paper thumbnail of Pemberdayaan Guru Dalam Pengembangan Perangkat Pembelajaran Ipa SMP Tahap Lesson Plan Dalam Sistim LSLC

Jurnal Pengabdian UntukMu NegeRI, 2019

This PKM is conducted at Sint Vianney Middle School which is located at JLN. I Gusti Ngurah Rai, ... more This PKM is conducted at Sint Vianney Middle School which is located at JLN. I Gusti Ngurah Rai, Kampung Baru Village, Soe City District, TTS Regency, NTT Province. The resulting target is an increase in the ability of teachers to design learning devices that meet the standards of the learning process, improvement in the ability of teachers to develop assessment instruments for aspects of knowledge (KI 3) that include high order thinking skills (High Order Thingking Skill / HOT), skills (KI 4 ), and optimizing the use of practical tools and materials in schools and the surrounding environment in the process of developing learning tools. Activities that have been carried out to achieve the above PKM targets consist of a lesson plan phase in the Lesson Study Learning Community (LSLC) system, namely:1. Planning the PKM activity schedule with the team leader, members and teachers in the school.2. Seminar on the implementation of the LSLC system, development of learning tools, and ...

Research paper thumbnail of Pengembangan Video Pembelajaran Berbasis Praktikum Dalam Pembelajaran Daring Materi Titrasi Asam Basa Kelas XI SMAN 5 Pocoranaka

Media video pembelajaran merupakan media yang cocok untuk berbagai macam pembelajaran baik di ke... more Media video pembelajaran merupakan media yang cocok untuk berbagai macam pembelajaran baik di kelas maupun di luar kelas. Dengan penggunaan media video pembelajaran berbasis praktikum ini peserta didik akan dipermudah dalam memahami materi, karena video pembelajaran ini dapat diputar berulang-ulang sesuai dengan keinginan siswa. Tujuan penelitian ini adalah untuk (1) Mengetahui validitas media video pembelajaran berbasis praktikum materi Titrasi Asam Basa dalam pembelajaran daring kelas XI SMAN 5 Pocoranaka (2) Mengetahui perolehan hasil belajar siswa kelas XI SMAN 5 Pocoranaka dalam pembelajaran daring materi Titrasi Asam Basa dengan menggunakan media video pembelajaran berbasis praktikum (3) Mengetahui respon siswa kelas XI SMAN 5 Pocoranaka dalam pembelajaran daring yang menggunakan media video pembelajaran berbasis praktikum materi Titrasi Asam Basa. Jenis penelitian ini adalah penelitian pengembangan (research and development). Model pengembangan yang digunakan adalah...

Research paper thumbnail of SINTESIS NANOFIBER POLIVINIL ALKOHOL/KITOSAN/IOTA?KARAGINAN SEBAGAI ADSORBEN Pb(II) DAN Cu(II)SYNTHESIS OF POLYVINYL ALCOHOL/CHITOSAN/IOTA?CARRAGEENAN NANOFIBER FOR THE ADSORBENTOF Pb(II) AND Cu(II)

Universitas Gadjah Mada, 2016

Research paper thumbnail of Langmuir and Freundlich Equation Test on Methylene Blue Adsorption by Using Coconut Fiber Biosorbent

Methylene blue is a cationic dye often used for various industries. Methylene blue waste harms aq... more Methylene blue is a cationic dye often used for various industries. Methylene blue waste harms aquatic biota. Most ways have been done to reduce the methylene blue pollution that includes photocatalytic, electrochemical, and adsorption. This study aimed to reduce the impact of methylene blue pollution on the aquatic environment and to test the adsorption isothermal for methylene blue adsorption using coconut fiber. The abundant coconut fiber waste around the Kupang city was taken and prepared to be used as an adsorbent. The characterization results showed that the active groups in cellulose were clearly described on the FTIR spectra which showed the presence of O-H vibrations at 3296.35 cm-1 , CO vibrations were seen at 1267.23 and 1060.85 cm-1 , at wavelengths 1608.63 cm-1 and 817.72 cm-1 there is a vibration from the C=C bond, while the C-H vibration appears at a wavelength of 2939.52 cm-1. The results of this research analysis showed that the adsorption of methylene blue according to the Langmuir isotherm indicated by the value of the equation of the straight line R 2 being one and the direction of the curve depicting occurring the effective adsorption. The maximum adsorption capacity was 4.467 mg g-1 with the percentage of methylene blue adsorbed at 99.3%. Adsorption occurs chemically with an energy of 27.29 kJmol-1 so it can be determined that the adsorption occurs with a monolayer mechanism.

Research paper thumbnail of Identification of Phytochemical Extract of a Combination of Young Coconut Water, Ginger and Turmeric

Indo. J. Chem. Res.

Turmeric is a tropical plant that is widely found on the Asian continent which is extensively use... more Turmeric is a tropical plant that is widely found on the Asian continent which is extensively used as a food coloring agent and fragrance. Ginger is a spice plant that it often found in South Asia which is widely has spread throughout the world. Coconut is an annual plant, has a hard stem and is generally not branched (monopodial), has fibrous roots, and contain water that is clear and tastes sweet, young coconut water has benefits such as antibacterial, beauty treatment, as an isotonic agent, and carry out the urination. This research was conducted to obtain information about the physicochemical properties and secondary metabolites contents of the coconut water, ginger and turmeric combination extract. The research method was carried out by mixing the mashed turmeric and ginger with the young coconut water and then macerated. The resulting extract was then tested for physicochemical properties (solubility) and identified groups of secondary metabolites (flavonoids, tannins, saponin...

Research paper thumbnail of Efektivitas Model Pembelajaran Diskusi Kelas Strategi Beach Ball Terhadap Hasil Belajar IPA Peserta Didik

Jurnal PTK dan Pendidikan

The cause of the low student learning outcomes is the learning process in the classroom which is ... more The cause of the low student learning outcomes is the learning process in the classroom which is still teachercentered. The learning model that can increase student activity in class is the Beach Ball strategy class discussion model. The purpose of this study was to determine the effectiveness of the Beach Ball strategy class discussion model on science learning outcomes for Grade VIII students on the subject of the human digestive system at SMPN 2 Kupang Tengah. The design used in this research is nonequivalent control group design. The results showed that the average student learning outcomes in the experimental class obtained a pretest score of 41.86 which increased to 80.31 after being given a posttest. Whereas in the control class the pretest score was 45.47 which increased to 74.11 after being given the posttest. Based on the results of the one-way Anacova test, a probability value (sig) of 0.000 is lower than the set value of 0.05. This shows that Ha (Beach Ball strategy class discussion model is effective on student learning outcomes) is accepted and H0 the Beach Ball strategy class discussion model is not effective on student learning outcomes) is rejected. Based on the results of data analysis, it can be concluded that the Beach Ball strategy class discussion model is effective on the learning outcomes of class VIII students at SMPN 2 Kupang Tengah.

Research paper thumbnail of Phytochemical Content of Fresh Purple Sweet Potato (Ipomea batatas L.) Extract As Acid-Base Titration Indicator

JURNAL SAINS NATURAL

Research has been carried out to examine the extraction and application of purple sweet potato tu... more Research has been carried out to examine the extraction and application of purple sweet potato tuber extract as an indicator of acid-base titration. Purple sweet potato tuber extract was obtained by extracting fresh tubers using ethanol 95% medical grade (PSPTE-95%) and ethanol 96% analytical grade (PSPTE-96%). Three variations of the maceration stage extracted samples. The extract was used for a phytochemical test and applied as an indicator for acid-base titration. Based on the research conducted, the rendement extract was extracted by ethanol 95% medical grade (PSPTE-95%) for the three stages of maceration are 4.34%, 4.76%, and 5.64%, the rendement extract was extracted by ethanol 96% analysis grade (PSPTE-96%) for the three stages of maceration are 7.09%, 12.16%, and 20.43%. PSPTE-95% and PSPTE-96% contain flavonoids, tannins, alkaloids, and saponins. PSPTE-95% and PSPTE-96% can be applied as indicators for titration of HCl solution with NaOH solution and HCl solution with NH4OH...

Research paper thumbnail of Penguatan Literasi bagi Siswa-Siswi SDK Kristus Raja Baun Kabupaten Kupang-NTT pada Masa Pandemi Covid-19

Jurnal Mandala Pengabdian Masyarakat

Pandemi Covid-19 menyebabkan perubahan dari semua segi kehidupan, temasuk bidang pendidikan. Pemb... more Pandemi Covid-19 menyebabkan perubahan dari semua segi kehidupan, temasuk bidang pendidikan. Pembelajaran online yang ditawarkan mengharuskan pembelajaran tanpa adanya interaksi langsung antara guru dan siswa di Sekolah Dasar Katolik (SDK) Kristus Raja Baun. Hal ini menyebabkan banyak siswa yang kesulitan dalam hal membaca. Pendampingan dan peningkatan budaya literasi yang dilaksanakan oleh mahasiswa Universitas Katolik Widya Mandira menjadi salah satu solusi untuk membantu anak-anak SDK Kristus Raja Baun. Setelah melalui pendampingan di sekolah maupun Grup Belajar Sore (GBS), diperoleh hasil pengakuan dari guru dan orang tua bahwa terjadi perubahan kebiasaan dari para siswa di rumah dan disekolah. Para siswa cenderung untuk mencari lebih banyak sumber bacaan untuk dibaca. Hasil lain yang diperoleh yaitu para siswa semangat untuk menceritakan kembali cerita yang mereka baca serta interaksi positif dari para siswa selama pembelajaran. Peran guru, orang tua dan masyarakat sangat di...

Research paper thumbnail of Penyesuaian Anggaran Dasar dan Anggaran Rumah Tangga Bumdes Ina Huk Berdasarkan Peraturan Pemerintah Nomor 11 Tahun 2021 dan Peraturan Menteri Desa Pembangunan Daerah Tertinggal dan Transmigrasi Nomor 3 Tahun 2021

Jurnal Kreativitas Pengabdian Kepada Masyarakat (PKM)

ABSTRAK Badan Usaha Milik Desa (BUMDes) sebelumnya didefinisikan hanya sebagai badan usaha. Namun... more ABSTRAK Badan Usaha Milik Desa (BUMDes) sebelumnya didefinisikan hanya sebagai badan usaha. Namun setelah Undang-Undang Cipta Kerja disahkan, BUMDes merupakan badan usaha yang berbadan hukum. Konsekuensinya ada beberapa perubahan regulasi dan kelengkapan dokumen yang dituntut untuk pengurusan badan hukum BUMDes. Salah satunya yakni penyesuaian Anggaran Dasar (AD)/ Anggaran Rumah Tangga (ART) BUMDes. AD/ART BUMDes merupakan rujukan peraturan dasar dan turunan dalam pengelolaan BUMDes. Tantangan dalam penyusunan AD/ART yakni tidak semua warga desa, bahkan Pemerintah Desa dan Pengurus BUMDes paham proses penyusunan, substansi AD/ART, serta struktur dalam AD/ART. Karena itu, pelatihan penyusunan AD/ART sesuai regulasi baru dibutuhkan untuk memperbaiki, sekaligus menyepakati poin substansial dalam isi AD/ART BUMDes. Kegiatan ini dilakukan di LPPM Universitas Katolik Widya Mandira yang melibatkan 15 orang peserta dari perwakilan pengurus BUMDes Ina Huk, pemerintah desa, BPD, pelaku usaha,...

Research paper thumbnail of Pelatihan Laporan Keuangan: Kinerja BUMDes di Desa Tunbaun

I-Com: Indonesian Community Journal

Organisasi yang menggunakan anggaran harus menyediakan pelaporan keuangan secara transparan dan a... more Organisasi yang menggunakan anggaran harus menyediakan pelaporan keuangan secara transparan dan akuntabel kepada pemangku kepentingan utama. Pendirian usaha desa meningkatkan roda perekonomian dalam desa. Usaha desa harus membangun sistem agar saling menguntungkan antar unit bisnis. Tujuan dari Pengabdian Kepada Masyarakat (PKM) ini adalah membuat para pengurus dan pengelola BUMDes menjadi profesional dalam hal mengelola laporan keuangan. Metode kegiatan pengabdian masyarakat berupa ceramah, diskusi, tanya jawab, dan latihan terkait pengelolaan keuangan BUMDes. Peserta pelatihan BUMDes tentang pengelolaan keuangan meliputi kepala desa, lembaga desa, dewan penasihat desa dan pengurus BUMDes di desa Tunbaun. Peserta berperan aktif dalam mengikuti pelatihan ini, minat peserta dalam mempelajari laporan keuangan sangat tinggi. Hasil evaluasi menunjukkan dari aspek materi, ketepatan waktu dan pemateri serta diskusi sudah sesua dengan kebutuhan peserta. Sebagai tindak lanjut keberlanjutan ...

Research paper thumbnail of Perbandingan Hasil Belajar Peserta Didik Dengan Menerapkan Model Pembelajaran Free Discovery Dan Guided Discovery Pada Materi Hukum-Hukum Dasar Kimia Kelas X Ipa

Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia

Penelitian ini dilakukan untuk mengetahui hasil belajar dan ada tidaknya perbedaan hasil belajar ... more Penelitian ini dilakukan untuk mengetahui hasil belajar dan ada tidaknya perbedaan hasil belajar peserta didik kelas X IPA 1 dan X IPA 2 pada materi hukum-hukum dasar kimia jika menggunakan model pembelajaran yang berbeda pada tiap kelas yaitu model pembelajaran Free Discovery dan Guided Discovery. Jenis penelitian ini adalah deskriptif dan komparatif. Sampel dalam penelitian ini adalah kelas X IPA 1 dan X IPA 2,Teknik pengumpulan data yakni observasi dan tes. Teknik analisis data yang digunakan yakni analisis deskriptif dan statistik, penelitian ini dilaksanakan di SMA Negeri 1 Rote Timur. Hasil analisis diperoleh: Hasil belajar peserta didik kelas X IPA 1 dengan menerapkan model pembelajaran Free Discovery tuntas dengan nilai akhir yang diperoleh yaitu 85,78, hasil belajar peserta didik kelas X IPA 2 dengan menerapkan model pembelajaran Guided Discovery tuntas dengan nilai akhir yang diperoleh yaitu 88,18, tidak terdapat perbedaan hasil belajar peserta didik dengan menerapkan mode...

Research paper thumbnail of The Penggunaan Sabut Kelapa Teraktivasi NaOH sebagai Adsorben Metilen Biru

Kovalen: jurnal riset kimia, Apr 21, 2023

Research paper thumbnail of Aplication of Turmeric Rhizome Pigmen as Acid-Base Titration Indicator

Sains Natural, Oct 31, 2022

Content from this work may be used under the terms of the a Creative Commons Attribution-ShareAli... more Content from this work may be used under the terms of the a Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0

Research paper thumbnail of Penguatan Kapasitas Pengelolaan BUMDes Di Desa Pariti, Kecamatan Sulamu Kabupaten Kupang-NTT

Bakti Cendana

Badan Usaha Milik Desa (BUMDes) merupakan suatu badan usaha berbadan hukum, yang bertujuan untuk ... more Badan Usaha Milik Desa (BUMDes) merupakan suatu badan usaha berbadan hukum, yang bertujuan untuk dapat meningkatkan perekonomian desa khususnya untuk peningkatan kesejahteraan masyarakat. Kegiatan penguatan kapasitas pengelolaan BUMDes dan sharing pengalaman pengelolaannya dalam kegiatan pengabdian pada masyarakat ini, bertujuan untuk dapat memberikan pengetahuan dan pengalaman baru bagi masyarakat. Kegiatan ini dilaksanakan di Desa Pariti, Kecamatan Sulamu, Kabupaten Kupang. Kegiatan ini diikuti oleh 20 oang peserta diantaranya Pemerintah Desa, pengurus BUMDes Gempar dan tokoh masyarakat. Metode pelaksanaan berupa sosialisasi melalui ceramah dan diskusi, sharing pengalaman dengan Kepala Desa Hadakewa serta hasil tes kemampuan (pre test dan post test). Kesimpulan dari hasil kegiatan ini yaitu terdapat peningkatan kemampuan terhadap substansi dan sistem tata kelola BUMDes. Kedepannya kegiatan ini dapat dilanjutkan dengan menghadirkan narasumber-narasumber yang telah sukses mengelola ...

Research paper thumbnail of Pelatihan Keuangan Bumdes: Penyusunan Proposal Usaha di Kecamatan Kupang Barat

Jurnal Kreativitas Pengabdian kepada Masyarakat, Nov 1, 2022

Badan Usaha Milik Desa (BUMDes) dikategorikan menjadi usaha desa yang berpotensial untuk dikemban... more Badan Usaha Milik Desa (BUMDes) dikategorikan menjadi usaha desa yang berpotensial untuk dikembangkan menjadi penggerak ekonomi desa. Sosialisasi cara menyusun proposal usaha pada kegiatan pelatihan bagi BUMDes dalam rangka kegiatan pengabdian masyarakat berniat untuk menambah pengetahuan dan keterampilan penyusunan proposal usaha. Kegiatan dilaksanakan di Kecamatan Kupang barat pada dua desa yaitu Desa Tablolong dan Desa Oenaek, pesertanya terdiri dari pengurus Badan Usaha Milik Desa (BUMDes), pemerintah desa, Badan Pengawas Desa, tokoh masyarakat, Unit Mikro Kecil Menengah (UMKM), dan kelompok anak muda berjumlah 20 orang. Metode yang digunakan adalah penyampaian materi berupa ceramah, diskusi dan simulasi. Kesimpulan dari hasil kegiatan menunjukkan kegiatan sosialisasi mendorong pengurus BUMDes dan menambah pengetahuan serta keterampilan menyusun proposal usaha. Kegiatan ini kedepannya dapat dilanjutkan dengan pelatihan dan bimbingan teknis dalam penyusunan proposal usaha

Research paper thumbnail of Kinetic Study of Blue Methylene Adsorption Using Coconut Husk Base Activated

Indo. J. Chem. Res.

Blue methylene is a cationic dye. It is usually as in various industries. The waste of blue methy... more Blue methylene is a cationic dye. It is usually as in various industries. The waste of blue methylene can reduce the environmental balance, especially for aquatic biota, by inhibiting the penetration of sunlight into the water. The experiment used the most natural ingredients and methods to minimize the existence of the dye. In this research, coconut husk was activated with NaOH solution and then used for blue methylene adsorption. The coconut husk started aims to reduce the pollution of the adsorbent to increase the adsorption capacity. The study result showed the optimum adsorption of blue methylene at pH 7 for 75 minutes of adsorption with the capacity adsorption of 1.41 mg g-1. The development of the kinetic study described the adsorption process according to a second-order pseudo reaction kinetic model with the constant adsorption rate of 2.54 x 10-4 g mg-1 minute-1.

Research paper thumbnail of Improving the pedagogic competence of Pandhega Jaya Christian High School teachers through making learning videos

Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang

The development of technology today has had a very significant impact in the world of education, ... more The development of technology today has had a very significant impact in the world of education, one of which is the creation of innovative learning media so that it can be a solution for teachers in creating a more interesting learning atmosphere. In line with this, teachers must be able to adapt, one of which is increasing their competence, especially pedagogic competence. The objectives of this activity are 1) to improve teacher learning and creativity in preparing media; and 2) solving problems faced by teachers in making learning videos; and 3) introducing software/applications that are easy to use in making learning videos. This service activity was carried out at Pandhega Jaya Christian High School as a partner school. The method of service used is in the form of training. The stages of training activities include: preparation, implementation, monitoring and evaluation. The result of this activity is an increase in the ability of teachers to use technology-based media. This c...

Research paper thumbnail of Phytochemical Screening and TLC Profiling of Combination Extracts of Avocado (Persea americana Mill.) and Papaya (Carica papaya) Leaves from Timor Island

Indo. J. Chem. Res.

Traditionally in the village of Alor, East Nusa Tenggara Province, a combination of avocado and p... more Traditionally in the village of Alor, East Nusa Tenggara Province, a combination of avocado and papaya leaves is often used to treat malaria. To be able to be developed as an ingredient in traditional medicine, it is necessary to conduct preliminary research to determine the content of secondary metabolites contained in the combination of avocado and papaya leaves. This study aims to determine the secondary metabolites contained in avocado and papaya leaves through phytochemical screening and Thin Layer Chromatography (TLC) analysis. Extraction was carried out using methanol solvent by maceration, and the extract yield was 91.4%. Testing the content of secondary metabolites in avocado and papaya leaf extracts was carried out by phytochemical screening. Furthermore, the TLC test was carried out to confirm the presence of a positive group of compounds on phytochemical screening, and to determine the chromatographic profile of the extract. After being tested by phytochemical and TLC an...

Research paper thumbnail of Pembelajaran Quantum Teaching Terhadap Hasil Belajar Siswa Kelas VII SMP Katolik Sint Aloysius Niki-Niki Kabupaten Timor Tengah Selatan

EduMatSains : Jurnal Pendidikan, Matematika dan Sains

This study aims to determine the effect of the Quantum Teaching model on the learning outcomes of... more This study aims to determine the effect of the Quantum Teaching model on the learning outcomes of seventh grade students of Sint Aloysius Niki-Niki Catholic Middle School. This type of research is quantitative research with a quasi-experimental method and the research design used is the Nonrandomized Control group Pretest-Posttest Design. The population in this study were all seventh grade students of Sint Aloysius Niki-Niki Catholic Middle School. The data analysis technique used descriptive analysis and inferential analysis. The results showed that the post test score in the experimental class that applied the Quantum Teaching model was higher, namely 86.37 compared to the control class who applied the conventional learning model, namely 69.13. Anacova test results show the calculated F value is 0,000 or less than 0.05. This shows that H0 which states that there is no effect of the Quantum Teaching model on the learning outcomes of seventh grade students of Sint Aloysius Niki-Niki...

Research paper thumbnail of Pendampingan Guru Dalam Mengimplementasikan Perangkat Pembelajaran IPA SMP Tahap Research Lesson dan Lesson Discussion Dalam Sistim LSLC

Kegiatan Program Kemitraan Masyarakat (PKM) ini dilakukan di SMPK Sint Vianney yang beralamat di ... more Kegiatan Program Kemitraan Masyarakat (PKM) ini dilakukan di SMPK Sint Vianney yang beralamat di JLN. I Gusti Ngurah Rai, Kelurahan Kampung Baru, Kecamatan Kota Soe Kabupaten TTS, Provinsi NTT, dan merupakan kelanjutan dari kegiatan PKM yang berjudul “Pemberdayaan guru dalam pengembangan perangkat pembelajaran IPA SMP pada tahap Lesson Plan dalam sistim LSLC”. PKM ini dilakukan dengan tujuan untuk mengatasi masalah di sekolah mitra berupa implementasi proses pembelajaran di kelas yang selama ini dilakukan secara individu oleh guru sehingga masalah dalam proses pembelajaran belum teridentifikasi dengan baik, dan solusinya belum didiskusikan dan diselesaikan secara bersama. Hal yang dilakukan dalam PKM ini adalah mendampingi guru IPA di sekolah mitra untuk mengimplementasikan perangkat pembelajaran yang memenuhi standar proses, dan instrumen penilaian aspek pengetahuan berorientasi kemampuan berpikir tingkat tinggi/hight order thingking (HOT), serta instrumen penilaian aspek keteram...

Research paper thumbnail of Pemberdayaan Guru Dalam Pengembangan Perangkat Pembelajaran Ipa SMP Tahap Lesson Plan Dalam Sistim LSLC

Jurnal Pengabdian UntukMu NegeRI, 2019

This PKM is conducted at Sint Vianney Middle School which is located at JLN. I Gusti Ngurah Rai, ... more This PKM is conducted at Sint Vianney Middle School which is located at JLN. I Gusti Ngurah Rai, Kampung Baru Village, Soe City District, TTS Regency, NTT Province. The resulting target is an increase in the ability of teachers to design learning devices that meet the standards of the learning process, improvement in the ability of teachers to develop assessment instruments for aspects of knowledge (KI 3) that include high order thinking skills (High Order Thingking Skill / HOT), skills (KI 4 ), and optimizing the use of practical tools and materials in schools and the surrounding environment in the process of developing learning tools. Activities that have been carried out to achieve the above PKM targets consist of a lesson plan phase in the Lesson Study Learning Community (LSLC) system, namely:1. Planning the PKM activity schedule with the team leader, members and teachers in the school.2. Seminar on the implementation of the LSLC system, development of learning tools, and ...

Research paper thumbnail of Pengembangan Video Pembelajaran Berbasis Praktikum Dalam Pembelajaran Daring Materi Titrasi Asam Basa Kelas XI SMAN 5 Pocoranaka

Media video pembelajaran merupakan media yang cocok untuk berbagai macam pembelajaran baik di ke... more Media video pembelajaran merupakan media yang cocok untuk berbagai macam pembelajaran baik di kelas maupun di luar kelas. Dengan penggunaan media video pembelajaran berbasis praktikum ini peserta didik akan dipermudah dalam memahami materi, karena video pembelajaran ini dapat diputar berulang-ulang sesuai dengan keinginan siswa. Tujuan penelitian ini adalah untuk (1) Mengetahui validitas media video pembelajaran berbasis praktikum materi Titrasi Asam Basa dalam pembelajaran daring kelas XI SMAN 5 Pocoranaka (2) Mengetahui perolehan hasil belajar siswa kelas XI SMAN 5 Pocoranaka dalam pembelajaran daring materi Titrasi Asam Basa dengan menggunakan media video pembelajaran berbasis praktikum (3) Mengetahui respon siswa kelas XI SMAN 5 Pocoranaka dalam pembelajaran daring yang menggunakan media video pembelajaran berbasis praktikum materi Titrasi Asam Basa. Jenis penelitian ini adalah penelitian pengembangan (research and development). Model pengembangan yang digunakan adalah...

Research paper thumbnail of SINTESIS NANOFIBER POLIVINIL ALKOHOL/KITOSAN/IOTA?KARAGINAN SEBAGAI ADSORBEN Pb(II) DAN Cu(II)SYNTHESIS OF POLYVINYL ALCOHOL/CHITOSAN/IOTA?CARRAGEENAN NANOFIBER FOR THE ADSORBENTOF Pb(II) AND Cu(II)

Universitas Gadjah Mada, 2016

Research paper thumbnail of Langmuir and Freundlich Equation Test on Methylene Blue Adsorption by Using Coconut Fiber Biosorbent

Methylene blue is a cationic dye often used for various industries. Methylene blue waste harms aq... more Methylene blue is a cationic dye often used for various industries. Methylene blue waste harms aquatic biota. Most ways have been done to reduce the methylene blue pollution that includes photocatalytic, electrochemical, and adsorption. This study aimed to reduce the impact of methylene blue pollution on the aquatic environment and to test the adsorption isothermal for methylene blue adsorption using coconut fiber. The abundant coconut fiber waste around the Kupang city was taken and prepared to be used as an adsorbent. The characterization results showed that the active groups in cellulose were clearly described on the FTIR spectra which showed the presence of O-H vibrations at 3296.35 cm-1 , CO vibrations were seen at 1267.23 and 1060.85 cm-1 , at wavelengths 1608.63 cm-1 and 817.72 cm-1 there is a vibration from the C=C bond, while the C-H vibration appears at a wavelength of 2939.52 cm-1. The results of this research analysis showed that the adsorption of methylene blue according to the Langmuir isotherm indicated by the value of the equation of the straight line R 2 being one and the direction of the curve depicting occurring the effective adsorption. The maximum adsorption capacity was 4.467 mg g-1 with the percentage of methylene blue adsorbed at 99.3%. Adsorption occurs chemically with an energy of 27.29 kJmol-1 so it can be determined that the adsorption occurs with a monolayer mechanism.

Research paper thumbnail of Identification of Phytochemical Extract of a Combination of Young Coconut Water, Ginger and Turmeric

Indo. J. Chem. Res.

Turmeric is a tropical plant that is widely found on the Asian continent which is extensively use... more Turmeric is a tropical plant that is widely found on the Asian continent which is extensively used as a food coloring agent and fragrance. Ginger is a spice plant that it often found in South Asia which is widely has spread throughout the world. Coconut is an annual plant, has a hard stem and is generally not branched (monopodial), has fibrous roots, and contain water that is clear and tastes sweet, young coconut water has benefits such as antibacterial, beauty treatment, as an isotonic agent, and carry out the urination. This research was conducted to obtain information about the physicochemical properties and secondary metabolites contents of the coconut water, ginger and turmeric combination extract. The research method was carried out by mixing the mashed turmeric and ginger with the young coconut water and then macerated. The resulting extract was then tested for physicochemical properties (solubility) and identified groups of secondary metabolites (flavonoids, tannins, saponin...