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EKSTRAK GETAH PEPAYA (Carica Papaya) DENGAN PENAMBAHAN Cu SEBAGAI DYE SENSITIZER SOLAR CELL (DSSC) Kurniawidi, Dian Wijaya; Alaa, Siti; Rahayu, Susi
Indonesian Physical Review Vol. 1 No. 1 (2018)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (485.082 KB) | DOI: 10.29303/ipr.v1i1.5

Abstract

Indonesia is a biodiversity country. Abundance of biological resources may encourage researchers to optimize its use. As an example papaya trees are utilized as raw material for thin films. Sap of papaya latex is doppinged with Cu. This composition is depositioned on top of FTO by spin coating method. The addition of Cu dopping aims to control the rate of crystallinity of the material. This research will add Cu between 10% and 50% solution. Based on FTIR test results, flavonoid compounds might be obtained with O-H group, some aromatic rings C = C and C = O, aliphatic compounds C-H and -CO. Flavonoid compounds are potentially utilized as dye for DSSC. The thickness of dye produced by doping Cu 10% is approximately (0.5-2) μm. Furthermore, dopping Cu from 20% to 40% can produce thickness around 10-50 nm. Meanwhile, the results of the XRD test show an effective Cu between 10% to 40%.
IDENTIFIKASI SIFAT FISIS KANDIDAT WAFER DARI LIMBAH TAHU SEBAGAI ALTERNATIF PAKAN TERNAK Rahayu, Susi; Nurhidayati, Nurhidayati; Kurniawidi, Dian Wijaya; Alaa, Siti
Indonesian Physical Review Vol. 4 No. 1 (2021)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v4i1.72

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Inovasi pembuatan pakan ternak dalam sediaan wafer perlu dilakukan untuk menjadi alternatif pakan saat musim kemarau. Limbah tahu merupakan salah satu bahan dasar yang dimanfaatkan sebagai bahan pembuatan wafer. Tujuan penelitian ini untuk mengidentifikasi perlakuan yang direkomendasikan dalam pembuatan kandidat wafer berdasarkan karakteristik fisis wafer. Kandidat wafer ditinjau berdasarkan warna, kadar air, densitas wafer, densitas partikel, dan porositas.  Proses pembuatan wafer dilakukan dengan proses pemadatan dan pemanasan. Sebelum serbuk limbah tahu dicetak, dipastikan dahulu kadar air pada serbuk limbah tahu sesuai dengan stadar SNI 3148:2:200. Suhu pemanasan serbuk limbah tahu yang direkomendasikan menggunakan suhu 100oC. Karakteristik serbuk limbah tahu yang dihasilkan yaitu serbuk berwarna putih, kadar air sebesar 14,1% dengan nilai densitas partikel serbuk limbah tahu(𝜌sa ) 0,189g/cm3 serta porositas (𝜙sa ) 0,216%. Sedangkan untuk proses pencetakan wafer, suhu pemanasan yang direkomendasikan yaitu 70oC. Kandidat wafer yang diperoleh menghasilkan warna putih, tahan hingga 4 minggu, kadar air 7,19%, densitas partikel (𝜌p ) 0,254 g/cm3, densitas wafer 1,10 g/cm3 dan porositas 𝜙w sebesar 3,47±0,0118%. 
FABRICATION OF CHITOSAN BIOPOLYMER FROM PEARL OYSTER SHELLS (Pinctada maxima) FOR MEDICAL APPLICATIONS Nurmaulida, Siti Ema; Alawiyah, Geby; rahayu, Susi; Taufik S, Ahmad; Hidayatullah, Kholik; Kurniawidi, Dian W.; Ali, Muhamad
Indonesian Physical Review Vol. 6 No. 2 (2023)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v6i2.227

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Chitosan is one of the biopolymers that has recently been developed in the medical field. Chitosan is biocompatible, biodegradable, and non-toxic, so it is safe for the human body. This study aimed to identify the characteristics of chitosan isolated from pearl oyster shells. Chitosan is obtained through three stages: deproteination, demineralization, and deacetylation. Characterization of chitosan is done physically and chemically including organoleptic test, yield calculation in each step of isolation, FTIR, and XRD. Isolated chitosan identified deacetylation degree and functional group with FTIR. While the crystal structure was determined using XRD. The results showed that chitosan powder has a beige color with a final yield of 7,06%. The characterization of FTIR shows that synthesized pearl oyster shells have successfully formed chitosan compounds with a deacetylation degree of 81,50%. Another characteristic is the crystal structure obtained; chitosan has orthorhombic unit cells with a degree of chitosan crystallinity of 36,94%. Based on the result, chitosan has met several standards in medical applications as a biomaterial.
Efektivitas Komik Sebagai Media Pembelajaran Matematika Shomad, Moh Abdul; Rahayu, Susi
Journal of Technology, Mathematics and Social Science Vol. 2 No. 2 (2022): Desember 2022
Publisher : IKIP PGRI Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30734/j'thoms.v2i2.2952

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Abstract: The purpose of this study was to determine the effectiveness of using comics as a learning medium in mathematics. This research method is the SLR (Systematic Literature Review) method. This method includes identifying, reviewing, evaluating and interpreting all available research in the form of journals, articles and others. Based on the results of the study, it was found that comics were an interesting, simple, and easy-to-understand learning medium for students so as to facilitate the teaching and learning process and increase learning motivation and improve student learning outcomes.Keywords:comik: Learning media: Mathematics
A Development of a Coarse Particle Concentration Measurement System Using a Crystal-Based Sensor and a Dust Sensor for Air Quality Measurement Budianto, Arif; Rahayu, Susi; Mardiana, Laili; Ridho Illahi, Ramadian; Juniarti, Rosita
Jurnal Pendidikan Fisika dan Teknologi (JPFT) Vol 10 No 1 (2024): January-June
Publisher : Department of Physics Education, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpft.v10i1.6692

Abstract

QCM or quartz crystal microbalance is a non static crystal that can be used as a mass sensor. As a piezoelectric crystal, a QCM generates an electrical signal with a specific frequency. The frequency change can be utilized as a frequency counter in a mass measurement system. This study aims to develop a coarse particle sensor system using a QCM and an oscillator circuit. In line with this, this study uses an oscillator circuit and a QCM for a sensor development. Thus, the frequency measurement of the QCM contains an oscillator and a signal conditioner connected to a microcontroller. For this purpose, an Arduino Nano was used as the signal processing, while a QCM was used as a coarse particle sensor and compared to a digital dust sensor (Winsen ZH03). The sensor system was evaluated using a fixed-type crystal connected to an oscillator: 2.5 MHz - 7.2 MHz. Arduino Nano processed the frequency signal generated by the developed oscillator. The results show that the sensor system has a stable output signal compared to the comparator. There is a linear correlation between the frequency measured by the system and the oscilloscope (99.73%). It can be concluded that the sensor system can measure coarse particle concentrations from 32-620 ug/cm3 (frequencies from 2 MHz to 7.2 MHz) with a response time of 1 second. The system has an accuracy of 99% and a resolution of 1 Hz.
Aplikasi Senyawa Antosianin dari Daun Jati (Tectona Grandis) Sebagai Pigmen Warna Alami pada Kain Katun Rahayu, Susi; sasabila, sasabila; Wirawan, Rahadi; Kurniawidi, Dian W
Kappa Journal Vol 7 No 1 (2023): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i1.7877

Abstract

Kain tenun dari desa Sade merupakan salah satu produk tenun yang masih memegang teguh warisan leluhur dalam proses pembuatannya. Mulai dari proses pemintalan benang, sizing benang, hingga proses pewarnaan benang masih memanfaatkan metode tradisional dan bahan alami. Penggunaan serbuk pewarna alami sebagai pewarna kain katun dapat meningkatkan kualitas benang. Salah satu caranya melalui modifikasi ukuran partikel serbuk pigmen warna. Sehingga perlu dilakukan penelitian untuk mengidentifikasi pengaruh penambahan filler maltodiekstrin terhadap karakteristik serbuk senyawa antosianin. Adapun tujuan lain yaitu untuk mengidentifikasi pengaruh penambahan filler maltodiekstrin terhadap karakteristik warna kain. Pembuatan senyawa antosianin menggunakan metode maserasi dan evaporasi. Dimana karakteristik serbuk yang diperoleh diukur kadar air nya dengan pengujian proximate. Sedangkan pengukuran indeks polidispersitas dan ukuran partikel menggunakan particle size analizer  (PSA). Untuk karakteristik warna menggunakan software berbasis android  yaitu analisis nama warna dengan colorpedia, nilai ∆E dan RGB dengan color tool dan  color grab. Hasil identifikasi karakteristik serbuk menunjukkan bahwa penambahan filler mempengaruhi kadar air, ukuran, dan indeks polidispersitas serbuk senyawa antosianin. Serbuk dengan penambahan filler 15% menghasilkan kadar air terendah 10,39 %, ukuran terkecil 521,9 nm, dan indeks polidispersi terkecil 0,429. Selain itu, karakteristik warna yang dihasilkan dari penambahan filler memiliki warna dasar yang tidak jauh berbeda yaitu merah kecokelatan. Namun, hal yang berbeda adalah tingkat kelunturannya. Dari nilai ∆E, penambahan filler 15% menghasilkan kelunturan yang paling rendah. Sehingga, serbuk senyawa antosianin hasil ekstraksi dapat diaplikasikan sebagai pewarna pada kain katun. penambahan filler maltodiekstrin 15% direkomendasikan sebagai alternatif pembuatan serbuk pewarna yang diaplikasin pada kain katun.
PEMANFAATAN DAUN JATI DAN DAUN MANGGA SEBAGAI SUMBER PEWARNA ALAMI UNTUK KAIN PADA PENGRAJIN TENUN LOMBOK BERBASIS GREEN TEKNOLOGI Kurniawidi, Dian W.; Ardianto, Teguh; Alaa', Siti; Alhadi, Kasnawi; Dewi, Diah L.; S., RR. Delima; Rahayu, Susi
Jurnal Abdi Insani Vol 11 No 1 (2024): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v11i1.1372

Abstract

The Mandalika Central Lombok Special Economic Zone (SEZ) is one of the world-class national priority tourist destinations. However, until now there has been no branding of the village's superior woven products that can contribute significantly to the Mandalika SEZ. So it is important to carry out this service activity, to give birth to entrepreneurial pioneer weaving craftsmen towards "LOMBOK WEANING, LOCAL GOING GLOBAL". To achieve this goal, the craftsmen group experienced several problems (1) limited insight into the importance of developing weaving for the tourism sector towards international tourism and (2) the dyeing process was still using conventional methods which took a long time and was impractical. This problem arose due to a lack of human resources owned by the village, even though the natural resource potential it has really supports the songket weaving industrial center. Therefore, the role of academics is really needed to innovate to provide solutions to problems based on green technology. The solutions to the problems that will be offered are (1) activities to open people's insight into the importance of the tourism sector (2) dissemination of green synthesis technology using a modified steam extraction method to produce natural dye powder accompanied by students of the material characterization method course (3 credits). So that both solutions can be delivered appropriately, a systematic flow of activities needs to be carried out consisting of (a) socialization, training, (c) mentoring, and (d) monitoring and evaluation. A series of activities have been carried out, it is hoped that the craftsmen's skills will increase so that they are able to independently produce coloring powder from various existing local natural resources and be able to compete internationally. In addition, different types of leaves will produce different color pigments. Differences in dyeing processes and techniques will produce cotton threads with different qualities. In general, natural dyes always produce soft colors.
Inovasi edukasi kesehatan yang efektif dan interaktif menggunakan teknologi Play on Demand dan Broadcast (PODCAST) Akhyar, Halil; Fajriyah, Putri Arifatul; Wirawan, Rahadi; Ali, Muhamad; Hudha, Lalu Sahrul; Alaydrus, Alfina Taurida; Mardiana, Laili; Rahayu, Susi
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 8, No 2 (2024): June
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v8i2.24669

Abstract

AbstrakSaat ini, promosi media untuk meningkatkan kesadaran masyarakat akan pola hidup sehat menjadi tantangan tersendiri di pemerintah daerah, seperti Dinas Kesehatan (Dinkes) di Provinsi Susa Tenggara Barat. Organisasi ini masih menerapkan ukuran konvensional dalam melakukan program promosi, seperti Radio, Surat Kabar, Flyer, dan lain-lain. Hal ini belum bisa menjangkau seluruh responden, terutama generasi muda yang seharusnya mengakses media sosial. Tujuan dilakukannya konten podcast adalah untuk memperluas jangkauan responden remaja melalui penerbitan video edukasi kesehatan di YouTube. Adapun metode yang digunakan dalam pelaksanaan pengabdian yaitu pendekatan participatory rural appraisal, serta pendekatan persuasive dan edukatif. Kegiatan dibagi dalam 3 tahapan penting yaitu persiapan, pembuatan konten, dan evaluasi. Hasil kegiatan pengabdian menunjukkan bahwa pembuatan konten youtube edukasi Kesehatan melalui podcast telah berhasil dilakukan dan dapat diakses pada https://www.youtube.com/@dinaskesehatanprovinsintb3184/videos. Berdasarkan hasil diskusi, program diberi nama SENIN SEHAT sesuai arahan pemerintah provinsi NTB kepada seluruh Organisasi Perangkat Daerah (OPD) terkait. Program telah menghasilkan Sembilan episode diantaranya hubungan komunikasi dan kesehtan, pemberian makanan pendamping air susu ibu, waspada kasus demam berdarah, dll. Oleh karena itu, podcast ini menjadi salah satu inovasi untuk melakukan edukasi secara efektif dan interaktif kepada masyarakat. Kata kunci: media informasi; senin sehat; teknologi informasi; teknologi komunikasi Abstract Recently, the media promotion to enhance citizens' awareness of healthy lifestyles has become a challenge in the local government, such as the West Susa Tenggara Province health department. The organization still applies conventional measurements to promote programs such as radio, newspapers, and flyers. The previous approach could only reach some respondents, especially young people who are supposed to access social media. The aim of establishing podcast content is to expand the reach of teenage respondents through publishing health education videos on YouTube. The methods used in implementing the service are the participatory rural appraisal approach and the persuasive and educational approach. Activities are divided into three critical stages: preparation, content creation, and evaluation. The results showed that creating health education YouTube content through podcasts was successfully carried out and can be accessed at https://www.youtube.com/@dinaskesehatanprovinsintb3184/videos. Based on the discussion, the program was named SENIN SEHAT according to the direction of the NTB provincial government. The program has produced nine episodes, including communication and health relations, providing complementary foods with breast milk, alerting for dengue fever cases, etc. Therefore, this podcast is an innovation that offers effective and interactive education to the public. Keywords: information media; healthy monday; information technology; communication technology.
KEPEMIMPINAN KEPALA SEKOLAH DALAM MENGELOLA KESEJAHTERAAN MENTAL DAN MENGATASI BURNOUT PADA GURU GENERASI MILENIAL Rahayu, Susi; Sumardjoko, Bambang; Lahir, Sri
JP3 (Jurnal Pendidikan dan Profesi Pendidik) Vol 11, No 2 (2025): JP3 (Jurnal Pendidikan dan Profesi Pendidik)
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jp3.v11i2.25242

Abstract

Guru menghadapi tantangan besar untuk mempertahankan kualitas pendidikan karena fenomena kelelahan dan penurunan kesejahteraan mental, terutama pada generasi milenial, yang menghadapi tekanan yang berbeda karena tuntutan kerja yang tinggi, adaptasi ke dunia digital, dan mencari cara untuk menemukan keseimbangan antara hidup dan pekerjaan. Penelitian ini bertujuan untuk mengeksplorasi dan menganalisis secara mendalam peran dan strategi kepemimpinan kepala sekolah dalam mengelola kesejahteraan mental serta mengatasi burnout pada guru generasi milenial. Dengan menggunakan pendekatan kualitatif dan desain studi kasus, data dikumpulkan melalui wawancara mendalam dengan para kepala sekolah dan guru milenial, observasi terhadap budaya kerja, serta analisis dokumen terkait kebijakan sekolah. Hasil penelitian menunjukkan bahwa kepemimpinan yang efektif dalam isu ini bercirikan tiga strategi utama yaitu kepemimpinan peran kepala sekolah dalam meningkatkan kesejahteraan mental guru milenial yang diwujudkan melalui penciptaan keamanan psikologis, praktik kepemimpinan yang empatik, dan pemberian otonomi. Strategi yang efektif untuk mengatasi burnout meliputi deteksi dini melalui observasi informal, intervensi suportif melalui coaching, dan pengurangan beban kerja administratif secara konkret. Implementasi kepemimpinan yang fokus pada kesejahteraan didukung oleh visi pemimpin dan kolaborasi tim manajemen, namun terhambat oleh resistensi kultur kerja lama dan tekanan birokrasi eksternal. Disimpulkan bahwa peran kepala sekolah tidak lagi terbatas pada kepemimpinan instruksional, melainkan harus berkembang menjadi kepemimpinan yang humanis dan suportif. Kepala sekolah yang berhasil mengelola kesejahteraan mental guru milenial adalah mereka yang mampu bertindak sebagai fasilitator, mentor, dan penjaga utama budaya kerja yang sehat.
Identifikasi Hubungan Antara Salinitas dan EC (Electrical Conductivity) Untuk Pengembangan Mitigasi Pengukuran Numerik-in Situ di Area Estuari: Mitigasi Kebencanaan Kualitas Air di Muara Kerandangan Budianto, Arif; Alaydrus, Alfina Taurida; Rahayu, Susi; Andini, Mira; Anggriani, Ni Ketut; Fajarica, Shinta Desiyana
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 11 No. 3 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v11i3.946

Abstract

The dynamic nature of estuarine waters necessitates new and accurate methodological approaches for determining salt content or salinity. This can be achieved through direct and real-time measurement of instantaneous and daily EC (Electrical Conductivity) levels in estuaries using EC sensors. On the other hand, similar real-time research has been limited, especially for studies of a continuous real-time nature. Therefore, this study aims to identify the relationship between EC and salinity in an estuary, using the area around the Batulayar estuary, West Lombok Regency, as a case study, employing a direct measurement model continuously for one full day. Measurements were conducted over 5 days during different lunar phases, using direct data acquisition and a numerical linearity approach via data analysis plug-ins. The identification results demonstrate a relationship between EC and salinity. At minimum values, salinity decreases as EC decreases. This reduction follows a quadratic pattern, with an obtained coefficient of determination (R²) of 0.8684 (y = 87397x² – 11173x + 2004.8). This characteristic is also supported by other measured parameters, such as TDS (Total Dissolved Solids), which exhibits a linear relationship with EC. The relationship characteristic between TDS and EC is considerably stronger, as indicated by a linear equation (R² > 0.90).
Co-Authors ABDUL GANI Abdul Gani abdurrouf Abdurrouf Afiatul Hafifah Agista, Wida Puteri Agus Saputra Agus Wahid H Ahmad Risandi F. Ahmad Taufik Ahmad Taufik S Ahmad Taufik S Alaa', Siti Alaa, Siti Alaa, Siti Alawiyah, Geby Alaydrus, Alfina T. Alaydrus, M. Mukaddam Alaydrus, Mukaddam Alda Berlian Alfina Alaydrus Alfina Taurida Alaydrus Alhadi, Kasnawi Alimuddin Alimuddin Amrul Ikhsan Andini, Mira Anggie Dwi P. Anggriani, Ni Ketut Ansyori, Maz Isa Anto Wahyu Prastyo, Andri Arif Budianto Arif Budianto Arif Budianto Arif Budianto Arzyl Akbar Aulia Safitri Destrianingtyas Awanda Oktri P.M B. Hilda Nida Alistiqlal Baiq Niswatul Khair Baiq R. S. Yusuf Bakti Sukrisna Bambang Sumardjoko Cahyawati, Triyana Dyah Christopher Yudha Erlangga Deasy Mariyani Desti Olga Safitri Destrianingtyas, Aulia Safitri Dewi Handayani Dewi, Diah L. Diah L. Dewi Dian W Kurniawidi Dian W. Kurniawidi Dian W. Kurniawidi Dian Wijaya Kurniawidi Dian Wijaya Kurniawidi Dian Wijaya Kurniawidi Djoko H Santjojo Djoko H. Santjojo Dodi Mariadi Dyah Purnaning Eka Rahmawati Eka Rahmawati Enggar Juwanda K. Ervina Sandra Dewi Eva Nurhaliza Eva Nurhaliza Fadli Robiandi Fajarica, Shinta Desiyana Fajriah, Baiq Nurul Fajriyah, Putri Arifatul Fidya, Karina Alma Fitri Bimantoro Habib Ridwansyah Hadi, Kasnawi Al Halil Akhyar Hamidi, M. Zaenuddin Hamidi, Mohammad Zaenuddin Handayana, I Gusti Ngurah Yudi Handayana, I Gusti Ngurah Yudi Hasanah, Khofizzatul Hendrawan Hidayatullah, Kholik Hiden - Hiden Huan Ahmad T. Hurnah Hurnah Hurnah Hurnah, Hurnah I G N Yudi Handayana I Wayan Sudiarta Ichsan, Andi Chairil Intan Utami Intan Utami Isa A.A, Maz Iwan Sumarlan Juniarti, Rosita Kasnawi Al Hadi Khusnul Khotimah Kormil Saputra Kurniawan Yuniarto Kurniawidi, Dian W Kurniawidi, Dian W. Kurniawidi, Dian Wijaya Lahir, Sri Laili Mardiana Lalu A Didik Lalu A Didik Lalu A. Didik Lalu Sahrul Hudha Legi Aprila Lily Maysari Angraini Liza Umitasari M. Mukaddam Alaydrus Mammi Dwi R. Marlina, Resti Marzuki Marzuki Marzuki Marzuki Masruroh Masruroh Maulana, Sutan Fajri Maz Isya A.A Mira Andini Moh. Bahtiar Muh. Alfaris Muhamad Ali Muhamad Ali Muhamad Ali Muhamad Amin Muhamad Amin Muhammad Fajrin Mustafid, Azhar Nadila Rahmawati Nafsiatil Afro', Maulina Nurfadilah Nurfadilah Nurfadilah Nurhidayati Nurhidayati Nurlaili Nurlaili Nurliah Buhari Nurmaulida, Siti Ema NURUL QOMARIYAH Oktri P, Awanda Pranahita, Dewa Dwi Purnaning, Dyah Putraji, L.M. Guguh Raisa, Daeva Ramadian Ridho Illahi Ramaditia Dwiyansaputra Reza Alfian Rohani Sayuti Rubi'ah, Siti S., RR. Delima sasabila, sasabila Septiani, Nonik Setyawan P Sakti Setyawan P. Sakti Shomad, Moh Abdul Sinta Devi Hariyanti Siti Alaa Siti Alaa Siti Alaa` Siti Alaa’ Siti Rubi’ah Sri Mulyani Suhayat Minardi Suhayat Minardi Syamsuddin Syamsuddin Syamsuddin Syamsuddin Syamsuddin Teguh Ardianto, Teguh Thathit Suprayogi Venessa Agusta Gogali Wahana, Lidia Wahyudi, Sopian Ari Wardi, Palaivia Harman Wijaya Kurniawidi, Dian Wirawan, Rahadi Wirawan, Rahadi Zahrah Ramadlan Mubarokah Zubaidi, Ariyan