bluuebunny/crossref_metadata_2025 huggingface dataset:
Sinergisme aktivitas antibakteri ekstrak biji bengkuang (Pachyrhizus erosus L.) terhadap Pseudomonas aeruginosa berdasarkan bioautografi
Authors: Rahminiwati Min , Supardi Arviani Rahmawati , Siti Mahyuni
Published: December 2023

Ekstrak etanol 70% biji bengkuang (Pachyrhizus erosus L.) dilaporkan mempunyai aktivitas antibakteri terhadap Pseudomonas aeruginosa. Hasil uji fitokimia ekstrak tersebut mengidentifikasi keberadaan senyawa kimia golongan alkaloid, flavonoid, saponin, dan tannin. Akan tetapi, senyawa yang bertanggung jawab sebagai antibakteri terhadap P. aeruginosa belum diteliti. Aktivitas antibakteri terhadap P. aeruginosa dari senyawa kimia yang terdapat dalam ekstral etanol 70% biji bengkuang dikaji melalui konsentrasi bunuh minimum (KBM) ekstrak biji bengkuang konsentrasi 6, 10, 14, 18, 22, 26, 30, dan 34% pada media Nutrient Agar  cair dan padat, nilai lebar daya hambat (LDH) dengan metode Kirby Bauer, dan nilai retention factor (Rf) ekstrak dengan metode kromatografi lapis tipis (KLT)-bioautografi. Hasil penelitian menunjukkan bahwa ekstrak biji bengkuang memiliki nilai KBM sebesar 26% dan nilai LDH terbaik sebesar 5,68 mm terdapat pada ekstrak dengan konsentrasi 34%. Ekstrak dengan konsentrasi 34% yang menunjukkan aktivitas antibakteri terhadap P. aeruginosa memiliki nilai Rf 0,812, 0,750, 0,675, 0,625, dan 0,787 yang masing-masing teridentifikasi sebagai golongan flavonoid, tanin, kuinon, alkaloid, dan triterpenoid. Nilai LDH masing-masing senyawa tersebut lebih rendah dari nilai LDH ekstrak. Berdasarkan data nilai Rf, efek antibakteri ekstrak biji bengkuang terhadap P. aeruginosa kemungkinan sebagai hasil dari interaksi sinergisme antarsenyawa kimia yang terkandung di dalamnya.
Pengaruh Pelaksanaan Pekerjaan Timbunan terhadap Stabilitas Bendungan Urugan Selama Masa Konstruksi
Authors: Husni Mubarak Kurnia Zain Ahmad , Wikan Sadono Kresno , Prabandiyani Retno Wardani Sri
Published: December 2023

Abstrak: Pembangunan bendungan harus sesuai dengan tiga pilar Konsepsi Keamanan Bendungan, yaitu keamanan struktur, pemantauan, pemeliharaan, dan operasi, serta kesiapsiagaan tindak darurat. Keamanan bendungan salah satunya dapat ditinjau dari kestabilan lereng pada tubuh bendungan. Penelitian ini dilakukan untuk mengidentifikasi kondisi geologi dan geologi teknik, spesifikasi material timbunan dan analisis faktor keamanan lereng tubuh bendungan. Faktor keamanan yang dianalisis adalah selama pelaksanaan konstruksi bertahap timbunan dan saat konstruksi timbunan telah selesai tanpa beban gempa. Metode analisis stabilitas lereng yang digunakan menggunakan pemodelan dengan perangkat lunak Geostudio. Analisis stabilitas menggunakan bidang gelincir yang stabilitasnya dievaluasi dan dibagi menjadi beberapa irisan dan tegangan normal yang bekerja pada dasar setiap lapisan timbunan. Pada penelitian ini dilakukan pemodelan skenario kenaikan timbunan. Skenario yang dimodelkan sebanyak 10 lapisan dengan tiap lapisan setinggi 7 (tujuh) meter. Initial static stress masing-masing lapisan timbunan didapatkan dari Parent analysis. Hasil analisis pemodelan stabilitas lereng menunjukkan nilai FK cenderung menurun seiring bertambahnya ketinggian lapisan pekerjaan timbunan. Pada pekerjaan timbunan kondisi disipasi tekanan air pori yang dihasilkan saat akhir konstruksi tanpa waktu tunggu disipasi lebih besar dibandingkan dengan adanya waktu tunggu disipasi 7 hari. Perbedaan ketinggian timbunan dan kemiringan tanah dasar dapat mempengaruhi nilai faktor keamanan terutama pada timbunan yang tinggi dan kemiringan tanah dasar yang curam.

Kata kunci: pekerjaan timbunan, stabilitas lereng, faktor keamanan, bendungan urugan, Geostudio
Pengaruh Pembatasan Jenis Kendaraan Terhadap Kinerja Ruas Jalan
Authors: Sudibyo Tri
Published: December 2023

Kemacetan adalah gangguan lalu lintas yang jamak terjadi di kota-kota besar maupun kota berkembang di Indonesia. Terdapat berbagai macam skenario manajemen lalu lintas yang diterapkan untuk mengurangi masalah ini. Salah satu contoh manajemen lalu lintas yang banyak dipakai adalah pembatasan jenis kendaraan tertentu di wilayah, ruas jalan, atau jam tertentu, yang diharapkan dapat mengurangi potensi gangguan lalu lintas. Mengacu pada Manual Kapasitas Jalan Indonesia tahun 1997, kendaraan motor di Indonesia terbagi atas kendaraan berat (HV), ringan (mobil penumpang, LV) dan sepeda motor (MC). Di antara jenis kendaraan ini, kendaraan berat seperti truk dan bus sering menjadi sasaran dalam skenario pembatasan masuk di ruas jalan tertentu. Studi ini mencoba menggali keefektifan skenario ini dengan membandingkan kinerja ruas jalan tertentu melalui perubahan jenis kendaraan yang melintas melalui suatu konversi kendaraan. Upaya konversi untuk menyamakan besaran dampak tiap jenis kendaraan di dalam analisis transportasi dikenal dengan istilah ekuivalensi. Diantara jenis ekuivalensi yang paling umum dipakai adalah ekuivalensi mobil penumpang yang menjadikan setiap jenis kendaraan memiliki padanan dalam satuan mobil penumpang, smp atau pcu (passenger car unit). Analisis di studi ini dilakukan melalui pendekatan simulasi mikro, dimana variasi kendaraan dilakukan berdasarkan ekuivalensi mobil penumpang. Penilaian kinerja jalan dilakukan berdasarkan parameter kecepatan sesuai Peraturan Menteri Perhubungan RI no 96 Tahun 2015. Studi ini dibangun dengan 3 buah model: Model 1: kondisi asli, Model 2: transformasi HV ke LV, Model 3: transformasi HV ke MC, Model 4: penghilangan HV. Hasil penelitian menunjukkan penggantian HV ke LV maupun MC pada tingkat V/C yang sama dapat meningkatkan kecepatan lalu lintas. Lebih lanjut, penghapusan HV tanpa konversi ke kendaraan lain meningkatkan kinerja jalan secara keseluruhan.
Evaluasi Geometri Jalan Menggunakan Unmanned Aerial Vehicle (UAV) pada Jalan Lingkar Dramaga Bogor
Authors: Simanjorang Bernando Agung Saputra , Sutoyo Sutoyo , Mentari Sekar , Sudibyo Tri
Published: December 2023

Di Indonesia umumnya evaluasi geometri jalan dilakukan dengan cara konvensional seperti menggunakan theodolite atau total station. Kegiatan evaluasi merupakan bagian dari monitoring untuk memantau setiap perubahan kondisi jalan baik profil, kepadatan kendaraan dan lalu lintas. Penelitian ini bertujuan untuk melakukan evaluasi kondisi eksisting geometri jalan menggunakan UAV serta menganalisis ketelitian fotogrametri. Lokasi yang diambil dalam penelitian ini bertempat di Jalan Lingkar Dramaga. Kegiatan dilakukan dengan pengambilan foto udara menggunakan UAV bereferensi Titik Kontrol Bantu BIG pada beberapa Ground Control Point (GCP). Evaluasi dilakukan terhadap alinyemen horizontal dan alinyemen vertikal jalan. Evaluasi ini dilakukan setelah dilakukan proses orthophoto terhadap hasil foto udara. Alinyemen horizontal yang dievaluasi berupa sudut belokan, radius belokan, panjang belokan, dan sisipan antar dua tikungan. Evaluasi alinyemen vertikal berupa panjang lengkung dan kelandaian jalan. Hasil uji akurasi berdasarkan kondisi eksisting jalan sebesar 99.2% untuk orthophoto tanpa koreksi dan 99.6% untuk orthophoto terkoreksi ground control point.  Berdasarkan hasil evaluasi terhadap kondisi eksisting jalan, alinyemen horizontal jalan telah memenuhi SNI T-14-2004 sedangkan pada alinyemen vertikal terdapat nilai kelandaian yang melebihi pada segmen A1-A2 sehingga dilakukan rekomendasi perbaikan berupa penambahan elevasi sebesar 0.50 m pada STA 0+390 berupa penambahan lapisan perkerasan.
Analisis Sebaran Konsentrasi PM2,5 Menggunakan Model AERMOD di Jalur Protokol Kota Bogor
Authors: Iriani Levina , Pribadi Andik
Published: December 2023

Sektor transportasi dapat berkontribusi besar terhadap peningkatan konsentrasi partikulat di udara perkotaan, seperti yang terjadi di Kota Bogor. Berdasarkan hal itu, penelitian ini dilakukan untuk mengetahui tingkat konsentrasi partikulat PM2,5 dan sebarannya dari sumber lalu lintas di beberapa jalur protokol Kota Bogor. Analisis konsentrasi PM2,5 dan sebarannya dilakukan dengan menggunakan pemodelan AERMOD. Data primer yang digunakan adalah konsentrasi PM2,5 di lapangan dan volume lalu lintas. Sedangakan data sekunder yang digunakan adalah data meteorologi, data terrain, serta data yang diasumsikan terkait karakteristik sumber emisi. Pengukuran konsentrasi PM2,5 dilakukan secara langsung di lapangan untuk menguji validasi nilai konsentrasi hasil pemodelan AERMOD. Nilai konsentrasi PM2,5 hasil pemodelan memiliki nilai tertinggi sebesar 85,5 µg/m3 dan nilai terendah sebesar 5,6 µg/m3. Sedangkan nilai tertinggi pada pengukuran yaitu sebesar 53,68 µg/m3 dan nilai konsentrasi terendah sebesar 23,75 µg/m3. Perbandingan antara konsentrasi PM2,5 di lapangan dengan hasil pemodelan diperoleh nilai R2 pada hari Senin yaitu sebesar 0,7022, hari Kamis sebesar 0,5956, hari Sabtu 0,712, dan hari Minggu sebesar 0,7963. Nilai konsentrasi PM2,5 di udara ambien tidak hanya dipengaruhi oleh volume lalu lintas, beberapa faktor lain yang dapat memengaruhi nilai konsentrasi PM2,5 di lapangan yaitu kondisi meteorologis di titik lokasi, seperti suhu, kelembaban dan kecepatan angin.
Seçilmiş Domatesler Arasında Genetik İlişkiler ve Bazı Patojenlere Karşı Dayanım Düzeylerinin Belirlenmesi
Authors: KIYMACI Gülbanu , UNCU Ayşe Özgür , TÜRKMEN Önder
Published: December 2023

Amaç: Günümüzde, çevre dostu üretim tekniklerinin geliştirilmesi, verim ve kalitenin arttırılması ve yetiştiricilerin daha az maaliyetle üretim yapabilmeleri için hastalık ve zararlılara karşı direnç genlerini içeren hibrit çeşitler geliştirmek zorunluluk haline gelmiştir. Çalışma kapsamında agromorfolojik özellikleri bakımından ebeveyn olmaya uygun bir domates genotip koleksiyonu içinde genetik benzerlik ilişkilerinin ortaya konması ve bu genotiplerin Meloidogyne incognita, Tomato Mosaic Virus, Verticillium wilt, Tomato Spotted Wilt Virus, Tomato Yellow Leaf CurlingVirus Fusarium oxysporum f. sp. lycopersici patojenlerine karşı dayanıklılık seviyelerinin belirlenmesi amaçlanmıştır.

Materyal ve Yöntem: Çalışmada, genotipler arası akrabalık ilişkilerin belirlenmesi ve adı geçen patojenlere karşı dayanımlarının belirlenmesi amaçlanmıştır. Çalışmanın arazi aşaması Antalya'da bulunan SELKO şirketine ait olan AR-Ge serasında, moleküler çalışmalar ise Necmettin Erbakan Üniversitesi Fen Fakültesi Moleküler Biyoloji ve Genetik Laboratuvarında yürütülmüştür.

Araştırma Bulguları: Çalışmamızda 92 adet domates genotipinde toplam 137 adet SSR alleli elde edilmiştir. Çalışmada kullanılan SSR markörlerinin ortalama PIC değeri 0.49’dur. En yüksek PIC değeri olan markörün 0.496 değeri ile LE15 olduğu belirlenmiştir. Domates genotipleri arasındaki genetik çeşitlilik unweighted Neigbor-joining (NJ) yöntemi kullanılarak belirlenmiş ve dendrogramı oluşturulmuştur. Genetik çeşitlilik analizi sonucu çalışmaya dahil genotiplerin altı gruba ayrıldığı belirlenmiştir. Genotiplerin gruplara sayıca dağılımı A grubunda 14, B grubunda 13, C grubunda 17, D grubunda 17, E grubunda 13, F grubunda ise 17 genotip şeklinde gerçekleşmiştir.

Uzaklık matrisi ve oluşturulan dendrogramı arasında, yüksek düzeyde korelasyon görülmektedir (r = 0.91). Ortalama benzemezlik değeri, 0,38 olarak belirlenmiştir.

Sonuç: ESTSSR allel verileri ile gerçekleştirilen çeşitlilik analizi sonucunda oluşturulan NJ dendrogramı, genotiplerinin dört ana küme oluşturduğu ve genotiplerin altı grupta toplandığı belirlenmiştir. Ortalama benzemezlik değeri 0,38 olarak belirlenmiştir. Domates tarımında verimliliği olumsuz yönde etkileyen birçok abiyotik stres faktörü mevcuttur. Verimlilik için hastalık ve zararlılara karşı dayanıklılık alellerinesahip genotiplerin varlığı oldukça önemlidir. Çalışma sonucunda Meloidogyne incognita, Tomato Mosaic Virus, Verticillium wilt, Tomato Spotted Wilt Virus, Tomato Yellow Leaf Curling Virus, Fusarium oxysporum f. sp. patojenlerin tümüne birden 1,5,11, 26, 28, 40,53, 63, 66, 70, 79, 87 ve 88 nolu genotipler dayanıklı bulunmuştur.
Türkiye'de Bireylerin Sigara Tüketim Olasılığını Belirleyen Faktörlerin Analizi: Rasgele-Etki Sıralı Probit Modeli
Authors: URAK Faruk
Published: December 2023

Amaç: Bu çalışma, ailelerin veya aile bireylerinin sosyo-demografik ve ekonomik özellikleri ile sigara tüketme olasılığı arasındaki ilişkiyi anlamayı amaçlamıştır.

Materyal ve Yöntem: Analizde, Türkiye İstatistik Kurumu (TÜİK) tarafından oluşturulan 2019 Türkiye Sağlık Araştırmasından (TSA) elde edilen 8166 hane ve 17000 bireyin verisi kullanılmıştır. Öncelikle ailelerin veya bireylerin sigara içmelerini etkileyen faktörler belirlenmiş, daha sonra bu faktörlerin marjinal etkileri rasgele-etki sıralı probit modeli kullanılarak hesaplanmış ve yorumlanmıştır.

Araştırma Bulguları: Araştırmada aile üyeleri veya ailelerden, düşük eğitime sahip olanların, erkeklerin, fiziksel güç gerektiren mesleklerde çalışanların ile orta ve yüksek gelire sahip olanların sigara tüketimine daha fazla yatkın oldukları tespit edilmiştir. Günlük yürüyüş pratiği, sigara tüketimini sınırlamaya yönelik olumlu bir etki taşımakla birlikte, günde bir veya daha fazla paket sigara tüketme olasılığını 2.83 puan düşürme eğilimi sergilemektedir.

Sonuç: Karar vericiler, tüm paydaşlarla işbirliği içinde, ekonomik seviyeleri, eğitim düzeyleri, coğrafi bölgeler ve sosyoekonomik durumları fark etmeksizin tüm bireyleri hedefleyen özel bir sigara kontrolü stratejisi oluşturabilirler.
OCUPE AS RUÍNAS: ENSAIO SOBRE A EDUCAÇÃO EM DIREITOS HUMANOS NAS OCUPAÇÕES ESTUDANTIS EM 2015/2016
Authors: NASCIMENTO Vânia Virgens Almeida , BORGES Scarlett Giovana , SILVA Rodrigo Manoel Dias da
Published: December 2023

Nesse ensaio, analisamos as ocupações estudantis das escolas públicas no Brasil, entre 2015 e 2016, em relação ao seu potencial transformador do cotidiano escolar. A Educação em Direitos Humanos é evidenciada, nesse contexto, como vivência e reflexão acerca dos ideais democráticos de cidadania e de justiça social, proposta na ressurgência da práxis educativa. Consideramos que as ocupações estudantis, em sua capacidade comunicativa, colocaram em pauta e em prática a Educação em Direitos Humanos, tomando a escola e a mídia como ruína de seu próprio processo institucional.
PENERAPAN KOLAM KARANTINA IKAN HIAS BERBASIS TEKNOLOGI RAMAH LINGKUNGAN DI POKDAKAN MAKMUR REJEKI KABUPATEN TULUNGAGUNG
Authors: Yanuhar Uun , Musa Muhammad , Evanuarini Herly , Wuragil Dyah Kinasih , Suryanto Heru , Sumsanto Muhammad , Caesar Nico Rahman
Published: December 2023

Ikan mas koki (Carassius auratus) menjadi salah satu ikan hias paling diminati saat ini. Permintaan pasar yang terus meningkat untuk ikan mas koki sebagai hewan peliharaan dan objek dekoratif telah mendorong pertumbuhan industri budidaya ikan mas koki (Carassius auratus). Namun, para pembudidaya ikan masih mengalami kesulitan dalam mengontrol kesehatan ikan dan kualitas air nya. Lingkungan perairan merupakan suatu hal yang sangat berperan penting dalam pertumbuhan ikan mas koki (Carassius auratus). Oleh karena itu, manajemen lingkungan dan kesehatan ikan sangat diperlukan dalam melakukan bubidaya ikan mas koki (Carassius auratus). Setelah Tim PKM menganalisa permasalahan yang terjadi, maka kegiatan yang dilakukan untuk mengatasi permasalahan tersebut adalah penerapan Recirculating Aquaculture System (RAS) dengan teknologi ramah lingkungan pada kolam budidaya ikan mas koki (Carassius auratus). Pada progam PKM ini akan menggunakan Filtrasi air terdiri dari filter mekanis, filter biologi, filter kimia dan sinar UV. Hasil dari kegiatan pengabdian masyarakat PKM terhadap mitra adalah Pengetahuannya meningkat, keterampilannya meningkat, kapasitas produksi meningkat dan keuntungannya meningkat.
KARAKTERISITIK AUDITOR DAN KECURANGAN LAPORAN KEUANGAN
Authors: Tantri Irga Ayudias , Chariri Anis
Published: December 2023

Penelitian ini bertujuan untuk mengetahui pengaruh variabel spesialisasi industri auditor, audit tenure, audit fee dan ukuran Kantor Akuntan Publik (KAP) terhadap kecurangan laporan keuangan perusahaan pertambangan dan kontruksi yang terdaftar di Bursa Efek Indonesia (BEI) periode 2017-2021. Variabel dependen pada penelitian ini diukur menggunakan Beneish M-score. Teknik sampling yang digunakan adalah purposive sampling dan diperoleh sebanyak 59 perusahaan dengan total 295 data. Alat analisis yang digunakan adalah analisis regresi logistik. Hasil pengujian menunjukkan variabel independen yaitu spesialisasi industri auditor, audit tenure, dan audit fee tidak berpengaruh terhadap kecurangan laporan keuangan sementara ukuran KAP berpengaruh terhadap kecurangan laporan keuangan.
MODEL VOUSINAD DAN KECURANGAN LAPORAN KEUANGAN: BUKTI DARI PERUSAHAAN PERBANKAN DI INDONESIA
Authors: Sadda Yusran , Januarti Indira
Published: December 2023

Penelitian ini bertujuan menguji pengaruh elemen model Vousinas dalam mendeteksi kecurangan laporan keuangan di sektor perbankan tahun 2018-2022. Model F-Score digunakan untuk mendeteksi kecurangan yang terjadi pada laporan keuangan. Penelitian ini menggunakan pendekatan kuantitatif dengan memanfaatkan data skunder pada laporan tahunan perusahaan perbankan. Teknik penggunaan sampel yang digunakan yaitu teknik purposive sampling dengan jumlah akhir sampel yang terpilih yaitu 175 sampel. Hasil penelitian menunjukkan bahwa kebutuhan keuangan pribadi (elemen tekanan) dan keahlian keuangan direksi (elemen kemampuan) berpengaruh positif dan signifikan terhadap kecurangan laporan keuangan, sedangkan keahlian keuangan komite audit (elemen peluang) berpengaruh negatif dan signifikan terhadap kecurangan laporan keuangan. Adapun proksi lain seperti target keuangan, tekanan eksternal, stabilitas keuangan, pergantian akuntan publik, remunerasi direksi, dan transaksi pihak berelasi tidak berpengaruh terhadap kecurangan laporan keuangan. Penelitian ini menyimpulkan bahwa kebutuhan keuangan pribadi yang tinggi dan besarnya rasio jumlah direksi yang memiliki keahlian keuangan dapat meningkatkan risiko terjadinya tindakan curang pada laporan keuangan. Selain itu penelitian ini juga menunjukkan semakin tinggi rasio anggota komite audit yang memiliki keahlian keuangan, maka semakin rendah kemungkinan perusahaan melakukan tindakan curang.
PERAN TATA KELOLA PERUSAHAAN YANG BAIK DALAM MEMODERASI TEKANAN PEMANGKU KEPENTINGAN YANG KOMPREHENSIF TERHADAP KUALITAS LAPORAN KEBERLANJUTAN
Authors: Muanifah Suciati , Holiawati  , Suripto
Published: December 2023

Sustainability reporting serves as a means to communicate a company's performance across environmental, social, and governance aspects, vital for stakeholders. This study investigates how corporate governance influences the relationship between stakeholder pressures and sustainability report quality among Indonesia Stock Exchange-listed firms from 2019 to 2021. Using quantitative methods and data analysis in Microsoft Excel and Eviews 9, the research analyzed 49 samples from 864 companies. The results suggest that stakeholder pressures collectively impact sustainability report quality. However, the effectiveness of Board of Commissioners' supervision in Good Corporate Governance (GCG) does not moderate this relationship in the Consumer-Oriented Industry, whereas it does moderate the relationship in the Environmentally Sensitive Industry. In summary, the Consumer-Oriented Industry has a limited impact on sustainability report quality, while the Environmentally Sensitive Industry has a significant impact.
Influence of Health Promotion of Peer Tutors on Clean and Healthy Living Behavior in Schools
Authors: Lestari Yunita , Attamimi Has’ad Rahman , Setianigsih Fitri
Published: December 2023

Clean and healthy living behavior in schools is an effort to empower students, teachers and the school community to know, want, and be able to practice PHBS and play an active role in creating a healthy school. PHBS must be instilled from an early age so that it can be carried over into adulthood. Elementary school children are still relatively young, so they need help from people in their immediate environment, namely parents, teachers and friends. The research aims to determine the influence of peer tutors' health promotion on clean and healthy living behavior (PHBS) in schools. This research uses bivariate analysis to determine the influence of peer tutor health promotion on clean and healthy living behavior (PHBS) in schools using a dichotomous quantitative comparative test with Mc Nemar Test analysis. The results of this research were that the number of students who experienced a change in PHBS behavior from "Not Good" to "Good" was 33 (91.7%) people and no students experienced a change in PHBS behavior from "Good" to "Not Good". Furthermore, of all the students in the sample there were 3 (8.3%) students whose PHBS behavior did not change or remained "Good" behavior.
Effects of Pineapple Fruit Extracts (Ananas comosus) on the Quality of Chemical and Microbiological-Rabbitfish (Siganus spp.) Sauce Products
Authors: Mahrus Mahrus , Al Idrus Agil , Syukur Abdul , Zulkifli Lalu
Published: December 2023

The present work aims to study the effect of pineapple fruit extracts on the quality of Chemical and microbiological - rabbitfish sauce products. Utilizing pineapple extract can speed up the fermentation process because pineapple extract contains bromelain enzymes that will break down rabbitfish’s protein, carbohydrate, and fat molecules into simpler molecules. The research method applied involved experimental laboratory procedures. This study used a completely randomized design. The variables observed were protein, water content, acidity (pH), total microbe, total lactic acid bacteria, Escherichia coli, Staphylococcus, and taste values. The pineapple extracts and fermentation length affected sauce product quality significantly. Pineapple extracts of 15% and 12-day fermentations produced the best sauce quality, consisting of 14.18% protein content, 73.55% moisture content, and a pH of 5.26. Besides, other parameters observed were total microbes 7.8 x 104 CFU/g, total lactic acid bacteria 1, 0 x 102 CFU/g, E. coli, and Staphylococcus sp. (negative), taste value was 3.46, but consumers did not like it so much. However, these results have met the Indonesian National Standards for the product and are safe for human consumption.
Stunting Allevation in Kalibaru Subdistrict, North Jakarta trough the Implementation of Integrated Urban Farming and Rainwater Harvesting System
Authors: Anisa Risma , Rusni Nur Khafifah , Mustafa Annisa Fitri , Hasibuan Hayati Sari , Sodri Ahyahudin , Tumuyu Sri Setiawati , Huwaina Analissa , Habib Muhammad Hasnan
Published: December 2023

Stunting remains a serious public health problem in urban areas. A contributing factor to the high prevalence of stunting in the region is the limited availability of clean water and nutrient-rich foods. In addition, this sub-district is at risk of experiencing a clean water crisis in the future. This study aims to analyze the effectiveness of the integration of rainwater harvesting (RWH) and urban farming to overcome stunting, access to clean water, and food supply in Kalibaru District, North Jakarta. The method used is a social experiment through three processes: community education, RWH installation, and urban agricultural system development. For each process, data collection was carried out through field observations and surveys of 39 respondents. Community knowledge was measured before and after the process through questionnaires, and the results of the integration of RWH and urban farming systems were described. The results showed an increase in public knowledge about the benefits of RWH integration and urban farming. RWH has helped alleviate the problem of clean water availability effectively and economically. Meanwhile, urban agriculture has given communities better access to nutrient-rich foods, which in turn can help reduce the problem of stunting.
Test the Antioxidant Effectiveness of Oyster Mushroom (Pleurotus ostreatus) Ethyl Acetate Fraction Cream Formula using FRAP (Ferric Reducing Antioxidant Power) and ABTS (2,2'-azino-bis (3-3) ethylbenzothiazoline-6-sulphonic acid) Methods)
Authors: Nadjamuddin Mirfaidah , Auliah Nielma , Mulyadin  , Tajuddin Zakiah , Andriawan Riki
Published: December 2023

molecules due to chemical reactions and metabolic events in the body. Phenolic compounds work to reduce the reaction of increasing the oxidation number, and are able to reduce highly reactive free radicals, lipid peroxidation processes, and metal oxides that can be obtained from oyster mushrooms. This study aims to make an antioxidant cream preparation and measure the IC50 value by conducting an antioxidant test of the ethyl acetate fraction of oyster mushroom (Pleurotus ostreotus) cream using FRAP (ferric reducing antioxidant power) and ABTS (2.2'-azino-bis (3-3) ethylbenzothiazoline-6-sulphonic acid) methods. Oyster mushrooms go through a liquid-liquid partition process and are made into cream preparations with a concentration of 2%, 4%, and 6% formulas, then the antioxidant activity is seen. Based on the measurement results of the three cream formulas, the IC50 value using the FRAP method was 110.12 in the medium category and the IC50 value with ABTS method was 84.61 in the strong category.

 

Keywords: antioxidants; free radicals; oyster mushroom; frap; abts.
Pengembangan LKPD Berbasis SETS (Science, Environment, Technology and Society) Pada Pokok Bahasan Kesetimbangan Ion dan pH Larutan Penyangga Kelas XI SMA/MA Sederajat
Authors: Putri Amelia Fatika , Herdini Herdini , Linda Roza
Published: December 2023

This research aims to produce an LKPD based SETS on a valid ion balance and pH of buffer solutions for class XI SMA/MA and knows user’s response. This research is development research (R&D) that adapts the 4-D development model. The data collection instruments used in the form of validation sheets and user response questionnaires. The research results showed that the percentage of appropriateness of content, SETS characteristics, language and presentation was 91.66%; 97.91% ; 89.58% and 91.67%. with valid criteria. One-on-one trials were carried out on 3 students with different abilities to get comments that were used to improve the LKPD. The results of teacher and student responses were respectively 97.17% and 84.34% with very good criteria.
Influence of Inquiry Training Learning Model Based Design Thinking on Creative Thinking Skills of Indonesia Students: Systematic Literature Review and Meta-analysis
Authors: Suprapto Yuyun , Asmawati Asmawati , Rahman Abdul , Utomo Wasito , Santosa Tomi Apra
Published: December 2023

The purpose of this study is to determine the influence of the design thinking-based inquiry training learning model on the creative thinking skills of students in Indonesia.  This type of research is a type of systematic literature review (SLR) research and meta-analysis.  The sources in this study analyzed 13 studies obtained through the databases of Google Scholar, Education Resources Information Center (ERIC), Wiley, PLoL ONE, Taylor of Francis, and IEEE published from 2019-2023. Analyze data with the help of JSAP applications. The results concluded that the summary effect size value (rE = 0.84; p < 0.001) high effect size category. This finding shows that the inquiry training learning model based on design thinking has a high positive effect on the creative thinking ability of students in Indonesia
Does the Guided Inquiry Model Improve Student's Problem Solving Thinking Ability? Meta-Analysis
Authors: Widodo Joko , Judijanto Loso , Halim Abdul , Rachman Azhariah , Sutarto Sutarto , Santosa Tomi Apra
Published: December 2023

The purpose of this study was to investigate the effectiveness of guided inquiry models to improve students' problem-solving abilities. This type of research is a meta-analysis.  The inclusion criteria in research are publications from reputable international journals and proceedings; Research must be experimented with guided inquiry learning models and conventional control class models; Research obtained from google scholar database; Hindawi, ScienceDirect, ERIC and IEEE; research related to guided inquiry and problem solving models; The study was published in 2013-2023 and the study had a sample size (N), mean value and standard deviation (SD). The results of the analysis of 18 studies suggest that there is a significant influence of guided inquiry models on problem-solving ability (Z = 9.29; p < 0.001; 95 % Confidence Interval [0.581; 1.245]. Effect size criteria are high with (rRE= 0.849]. This finding explains that the guided inquiry model has a significant effect on students' problem-solving abilities
Effectiveness of the Flipped Classroom Model on the Problem-Solving Abilities of Science Education Students: A Meta-analysis Study
Authors: Santosa Tomi Apra , Ilahi Dian Purnama , Utami Lisa , Festiyed Festiyed , Desnita Desnita , Asrizal Asrizal , Diliarosta Skunda , Yerimadesi Yerimadesi , Arsih Fitri
Published: December 2023

A concise the purpose of the study was to determine the effectiveness of the flipped classroom model on the problem solving skills of science education students. A total of 950 studies were analyzed obtained from six databases consisting of ScienceDirect, Education Resources Information Center (ERIC), Wiley Journal, Springer; ProQuest and IEEE aim to get relevant articles published in 2020-2023.  From the analyzed studies, 21 studies were selected for meta-analysis.  Data analysis with JSAP software.  The results showed that the flipped classroom model provides high effectiveness on the problem solving skills of science education students (rRE = 0.97; 95 % CI [0.840; 1.111]; p < 0.001). This finding provides information for teachers to apply the flipped classroom model to improve students' problem solving skills in learning
Effectiveness of Ethno-STEM Based Chimistry to Improve Students Critical Thinking Skills
Authors: Hiqmah Noor , Rienovita Ellina , Al-Latief Imam Shofwan , Sholehuddin Sholehuddin , Santosa Tomi Apra
Published: December 2023

Ethno-STEM based chemistry learning has a significant impact on students' knowledge and competencies. However, ethno-STEM based chemistry learning experiences many problems in its application and several issues that need to be clarified. This research aims to determine the effectiveness of ethno-STEM based chemistry learning in improving students' critical thinking skills. This type of research is meta-analysis. This meta-analysis synthesizes 19 articles consisting of 1021 participants published in 2018-2023. The research results show that ethno-STEM based chemistry learning has a big influence on students' critical thinking skills (Hedges'g = 0.915; p < 0.001). Research can provide important information in ethno-STEM-based chemistry learning in schools.
Massive Open Online Courses (MOOCs) as Catalysts of Change in Education During Unprecedented Times: A Narrative Review
Authors: Rulinawaty Rulinawaty , Priyanto Agus , Kuncoro Setyo , Rahmawaty Dwi , Wijaya Andi
Published: December 2023

This article delves into the significance of Massive Open Online Courses (MOOCs) in education, particularly during the COVID-19 pandemic. MOOCs, accessible to all at no cost, have emerged as a vital solution for remote learning challenges. They offer flexibility, accessibility, and adaptability, enabling uninterrupted learning from home. MOOCs hold several advantages. They empower self-directed learning by accommodating varying schedules. Interaction and collaboration thrive through discussion forums and shared projects, fostering social learning. Lifelong learning is promoted through continuous skill enhancement. Digital literacy is honed, vital in a digital world. MOOCs facilitate affordable distance learning without relocation. They grant access to prestigious universities and offer certificates for career advancement. While transformative, MOOCs can't fully replace traditional education due to challenges like limited direct interaction. They should complement existing systems. In Indonesia, MOOCs can improve education accessibility, especially in remote areas. Yet, equitable quality and widespread internet access remain crucial concerns.
Effect of Internet Self-Efficacy on the Adherence of Middle Adulthood M-health Users with Online Trust Behavior as a Mediator Variable
Authors: Nawangsih Endah , Tambunan Siti Marliah , Putri Dian Kemala
Published: December 2023

Adherence to treatment regimens is a significant challenge faced by patients with chronic illnesses and healthy individuals, including through m-Health—a new model of remote health delivery via mobile phones. Middle-aged adults often need more internet skills, especially concerning internet self-efficacy and online trust behavior in health services. This study aims to elucidate the relationship between internet self-efficacy and adherence to medical advice among middle-aged m-Health users, mediated by online trust behavior. A cross-sectional study was conducted from 4 July to 4 September 2022, involving 214 respondents selected through convenient sampling from various cities and regencies in Indonesia. Data were collected using online forms distributed to the participants. The statistical analysis employed a structural equation model (SEM) with the LISREL version 8.7. The results showed a chi-square value of 438.61, df=187, p=0.00000, RMSEA=0.079, NFI=0.93, NNFI=0.95, CFI=0.95, and IFI=0.95. These findings indicate that online trust behavior successfully mediates the relationship between internet self-efficacy and adherence. However, internet self-efficacy does not directly affect adherence. This means that adherence will increase when trust in health services.
Is Resilience Knowledge Related to the Mental Health of First-Year Medical Students?
Authors: Romadhona Nurul , Fitriyana Susan , Prasetia Ayu , Ibnusantosa Raden Ganang , Nurhayati Eka , Respati Titik
Published: December 2023

The many demands faced by first-year medical students can impact mental health. For students to function well, resilience is needed. This study aimed to determine the relationship between resilience knowledge and the mental health of first-year medical students. This quantitative study was conducted at the Faculty of Medicine, Universitas Islam Bandung, in October 2022. Respondents were 92 students in the first 2022/2023 academic year—data collection method was by distributing two Google Forms links. The first contains a pre-test regarding resilience knowledge, while the second includes the self-reporting questionnaire-29 (SRQ-29). Univariate analysis used distribution assumptions, frequency distribution (median, mean, standard deviation), and proportion distribution (percentage, 95% CI). Bivariate analysis used the ttest, Wilcoxon test, and chi-square test. Most respondents were female, 59% (95% CI=52.62, 72.37). The majority of respondents were 18 years old. The highest order of mental health screening was post-traumatic stress disordersymptoms at 59% (95% CI=48.27, 68.39), mental-emotional disorder (anxiety and depression) symptoms at 37% (95% CI=27.62, 47.37), and psychotic symptoms at 27% (95% CI 18.98, 37.28). No respondents experienced symptoms of narcotic or psychotropic drugs. Respondents who indicated mental health disorders were more significant than those who did not, namely 60% (95% CI=49.35, 69.39). There was no relationship between resilience knowledge and mental health (p=0.75). Respondent's understanding of resilience was good, but more indicated mental health disorders.
Soil-Transmitted Helminth Eggs Contamination on Fresh Vegetables in Medan Indonesia
Authors: Nurfadly Nurfadly , Zahara Iqrina Widia , Nasution Aisyah Khoiriyah
Published: December 2023

Indonesian people habitually consume fresh vegetables as companions to other foods. We can find soil-transmitted helminths (STH) eggs in fresh vegetables that are not washed clean. This study determines whether there was STH egg contamination in fresh vegetables in several stalls selling fried chicken in Medan. This study was a descriptive study with a cross-sectional design. Research samples were four types of fresh vegetables: lemon basil (Ocimum africanum), lettuce (Lactuca sativa), cucumber (Cucumis sativus), and cabbage (Brassica oleracea var. capitata) collected from 88 fried chicken stalls in Medan in January 2019. All samples were examined by the sedimentation method to ensure STH egg contamination at the Parasitology Laboratory of the Faculty of Medicine Universitas Muhammadiyah Sumatera Utara. The types of fresh vegetables that were most contaminated by STH eggs were lemon basil leaves (Ocimum africanum), and the most abundant STH eggs found were Ascaris lumbricoideseggs. In conclusion, there is egg contamination in fresh vegetables in several stalls selling fried chicken in Medan.
Effect of Gratitude, Forgiveness, and Social Support on Retiree Well-being with Self-efficacy as a Mediator Variable
Authors: Qodariah Siti , Ancok Djamaluddin , Wulan Ratna , Dewi Mahargyantari Purwani
Published: December 2023

Many psychological problems arise when facing retirement due to unpreparedness during this period. Unpreparedness is commonly triggered by their fears of being unable to meet primary and secondary needs. Physical issues such as retirement health are essential, but paying attention to psychological problems is also necessary. Research on the well-being of retirees needs to be done to see what factors influence both internally and externally. This study aims to test the retirement well-being model in terms of such aspects as gratitude, forgiveness, and social support mediated by self-efficacy. This study used the structure equation model (SEM) approach with a sample of 220 retirees aged at least 55 through a convenience sampling technique. The data was collected in Bandung and its surroundings for six months, from August 2019 to March 2020, through well-being, gratitude, forgiveness, social support, and self-efficacy scales. The results of the research model tested have a good fit with empirical data and meet the goodness of fit requirements. There is a direct influence of gratitude, social support, and self-efficacy on well-being. There is an indirect effect of social support on well-being through self-efficacy. The value of the indirect effect is smaller than the direct effect, meaning that self-efficacy is not a good mediator variable for social support for well-being. In conclusion, most retirees experience well-being due to social support from their environment and their gratitude and self-efficacy. The well-being of retirees can be increased by appreciation, having social support from the environment, and having confidence in one's ability to deal with problems.
Relationship between Self-Management Behavior on the Severity of Artery Coronary Disease
Authors: Marlina Marlina , Sari Muliya , Fithria Fithria , Amni Rahmalia
Published: December 2023

Coronary artery disease (CAD) is a non-communicable disease that is the main cause of death and loss of disability-adjusted life years (DALYs) globally. Patients can experience various complications that affect the severity of the disease. Various factors, especially self-management behavior, can influence the severity of CAD patients. This study aimed to determine the relationship between self-management behavior and the severity of CAD in Dr. Zainoel Abidin Regional General Hospital Banda Aceh. This study used a cross-sectional design from March 28 to May 19, 2023. The sample consisted of 221 CHD patients who had undergone coronary angiography, were selected using purposive sampling, and met the inclusion and exclusion criteria. Data was collected through guided interviews using the self-management scale (CSMS) and syntax score. Data were analyzed descriptively and inferentially. Data analysis showed a significant relationship between self-management behavior and the severity of CAD. Daily life management (p=0.000, OR=5.334), disease management (p=0.000, OR=2.633), and emotional management (p=0.000, OR=2.047) were associated with the severity of CAD. Logistic regression indicated that daily life management was the most dominant factor associated with the severity of CAD (OR=5.334). Good daily life, disease, and emotional management can help reduce the risk of complications and improve the prognosis of CAD patients. Self-management behavior, particularly daily life management, is significantly related to the severity of CAD in Dr. Zainoel Abidin Regional General Hospital patients.
A Study on Work-Life Balance In Working Women of TNAU
Authors:   iniya.v050599@gmail.com, V Iniya
Published: December 2023

In the historical context, women were predominantly confined to domestic roles or limited employment options. However, contemporary advancements have enabled more women to pursue higher education and establish careers, ushering in new challenges. Modern working women, particularly those who are married and mothers, face the intricate task of balancing professional responsibilities with family obligations. This study investigated the challenges encountered by married working women, specifically affiliated with Tamil Nadu Agricultural University in Coimbatore. Employing an Ex post facto research design, the study explored the profile characteristics and work-life balance of 60 participants through interviews and a comprehensive questionnaire. The findings revealed that a significant proportion of working women experienced challenges in achieving work-life balance, impacting their overall quality of life. Professional challenges, including long working hours and inadequate support, contribute to the struggle, leading to stress, health issues and strained personal relationships. The study underscored the need for a holistic understanding of these challenges and advocates for comprehensive strategies, acknowledging the intricate interplay between work and personal life. The findings contributed valuable insights for organizations and policymakers aiming to support the well-being and work-life balance of contemporary working women.
Keyhole Welding with Hybrid Plasma-Free Arc Source
Authors:   American Welding Society, LIU ZUMING , LIU FEI , QIU JIAYU
Published: December 2023

Improving the keyhole welding process window is challenging work because the force and thermal state in the weld pool are hard to control. A hybrid plasma-free arc source was developed based on a plasma arc torch, sided tungsten was added close to the constraint orifice to form a free arc, and hybrid arcs formed after the free arc was fully absorbed into the constraint arc. In such a one-anode, twocathode hybrid arc system, the added free arc acts in an assistant role to adjust arc heat output without influencing the arc pressure peak, and the constraint arc acts as the guiding arc to control the arc pressure and slightly incline to the free arc side. Bead-on welding experiments were done to test keyhole welding process behavior with the hybrid arc source, including arc column, keyhole state, weld surface performance, and melting state in the weld pool. Results showed that (1) the hybrid arc can enlarge the stable keyhole welding process window in aspects of welding current and welding speed, and a more-obvious improving effect is obtained with the leading-sided tungsten; (2) the hybrid arc with the rear-sided tungsten has a smooth front weld surface; (3) the increased heat will enlarge the weld cross-section area with no obvious influence to the backside weld width; and (4) the leading keyhole wall is related to the outer tungsten position. The research gives a new method for improving keyhole welding stability.
Effectiveness of family support program on children with developmental delays
Authors: Nitin Bindlish  , Ishani Chakravorty  , Khilly Marwah  , Tanushree Dwivedi  , Rhythm Makkar
Published: December 2023

The aim of this retrospective study was to assess the effectiveness of the Family Support program (FSP) on children with Developmental delays in two phases. As part of Phase 1, the Developmental progress of 3 groups was investigated at 3, 6 and 9 months post the intervention. In phase 2 the effect of ages in the treatment progression (3 to 6, and 7 to 12) was studied. Sample included 101 participants in total. Significant progress was observed across all developmental stages at all 3 intervals. Age analysis found positive significant results for ages 3 to 6 and in 7 to 12, was insignificant only in the cognitive domain. Study highlights the efficacy of FSP, and illustrates significant developmental gains in children with developmental delays.
Effect of antifungal botanical extracts on seed-borne fungi prevalence and germination of Terminalia ivorensis seeds in Ghana
Authors: Prince Cobbinah  , John Doffour  , Cosmas S. Abengmeneng  , Ammal Abukari  , Latif Iddrisu Nasare
Published: December 2023

The use of synthetic fungicides for the management of seed-borne pathogens are detrimental to human health and the environment. In view of this research was conducted to assess the effect of antifungal botanical extracts (garlic, neem and Senna alata) on seed-borne fungi prevalence and seed germination of Terminalia ivorensis seeds. Two major seed-borne fungi of two genera namely Aspergillus niger and Colletotrichum sp. were isolated from the seeds. There was a hundred percent incidence of seed-borne fungi infection of Terminalia ivorensis seeds. Aspergillus niger was predominant with an incidence of 91.7% while Colletotrichum sp. had an incidence of 8.3%. There were significant differences between treatments with respect to total seed-borne fungi prevalence. Seeds treated with Senna alata aqueous extract showed the highest 100.0% prevalence of total seed-borne fungi followed by seeds treated with neem (75.0%) whilst seeds treated with aqueous garlic extract recorded the least (8.3%) total seed-borne fungi prevalence. The highest (100.0%) prevalence of Aspergillus niger was recorded by seeds treated with Senna alata whilst the least (8.3%) recorded in seeds treated with garlic. Colletotrichum sp. was only prevalent on seed treated with Mancozeb 80% WP at 8.3%. Significant variations were observed between treatments regarding germination percentages of Terminalia ivorensis seeds. Seeds treated with garlic extract recorded the highest (50.0%) germination percentage whilst the lowest (21.7%) recorded by Senna alata. Treating forest tree seeds with garlic extract before sowing could inhibit the growth of fungal pathogens and therefore improve germination.
Comparative numerical and experimental studies of the tensile strengths of concrete incorporating recycled and natural aggregates
Authors: Arba Achyle Télesphore OUEDRAOGO  , Etienne MALBILA  , Nicolas KAGAMBEGA  , David Y. K TOGUYENI
Published: December 2023

The aim of this study is to carry out a comparative numerical and experimental analysis of the tensile strengths of concrete. To do this, a physical and mechanical characterization of the aggregates was carried out, followed by the formulation of current concretes. Tensile strength characterization tests and a theoretical numerical study according to BAEL 91 revised 99 and Eurocode 2 of the concrete samples were carried out. The analysis of tensile strengths shows that at 7 days of age the average tensile strengths calculated according to Eurocode 2 are higher than those experimental and BAEL 91 revised 99. At 28 days of age, the experimental results are higher than the theoretical results obtained, except for the average tensile strengths of BR2 (2.25 MPa) and BC1 (2.23 MPa) of Eurocode 2, which are slightly higher than those obtained experimentally (BR2=2.08 MPa ; BC1=2.09 MPa). Furthermore, the relationship established between the theoretical and experimental results shows at 7 days of age that the average tensile strengths according to BAEL 91 revised 99 are closer to those experimental with respectively a correlation coefficient and the standard error equal to 0.502 and 0.1687. At 28 days of age those of Eurocode 2 are closer to the experimental values with respectively a correlation coefficient and the standard error equal to 0.9206 and 0.0813. From these analyses, it can be seen that Eurocode 2 provides a better prediction of the mechanical tensile behaviour of concrete based on recycled and/or natural aggregates.