bluuebunny/crossref_metadata_2025 huggingface dataset:
Núcleo de Estudos e Pesquisas em Saúde na formação de pesquisadores: Um relato de experiência
Authors: Laguna Gabriela Garcia de Carvalho , Fonseca Yago Soares , Maia Michele Cristina , Reis Anne Sulivan Lopes da Silva , Lima Karolina de Oliveira , Ramos Murilo Sousa , Amador Ana Mécia Ribeiro , Alves Ketely Oliveira , Chaves Murilo Alves , Borges Grasiely Faccin
Published: February 2025

A Saúde Coletiva estabelece diálogos entre saúde e sociedade, promovendo reflexões críticas sobre o processo saúde-doença e os determinantes sociais que o influenciam. Este estudo descreve a experiência de pesquisa em Saúde Coletiva do Núcleo de Estudos e Pesquisas em Saúde (NEPS), com base na avaliação do relatório anual do grupo e na aplicação de um questionário complementar de oito itens, abordando participação em projetos de pesquisa e extensão, produção de resumos e artigos, tempo de participação, titulação, interfaces na saúde coletiva, vantagens e desafios, atividades acadêmicas, qualidade na escrita e incentivo à docência. Ao final de 2022, 70% dos integrantes do NEPS estiveram envolvidos em projetos de pesquisa, enquanto 40% participaram de atividades de extensão. Observou-se que 87,5% produziram e apresentaram resumos, e 45,8% publicaram artigos e/ou capítulos de livros. Os relatos destacam o aprimoramento do percurso acadêmico, o estímulo à busca de evidências científicas e a motivação para a docência, evidenciando a relevância de grupos de pesquisa para a formação de profissionais de saúde e pesquisadores qualificados.
Pemanfaatan Articulate Storyline 3 Untuk Pengembangan Media Pembelajaran Interaktif Berbasis Mobile Learning
Authors: Mokodompit Cahyadi Rahmansya , Novian Dian , Kadim Ahmad Azhar , Koniyo Moh. Hidayat , Hadjaratie Lillyan , Muthia Muthia
Published: February 2025

Materi Analisis Data (AD) merupakan materi pelajaran Informatika di Kelas X. Berdasarkan hasil observasi pada kelas X SMK Negeri Model Gorontalo dengan jumlah siswa sebanyak 65 siswa yang terbagi ke dalam 4 program kejuruan yakni Teknik Jaringan Komputer (TJK), Agrobisnis Pengolahan Hasil Pangan (APHP), Agrobisnis Tanaman (ATA), dan Agrobisnis Ternak (AT) serta wawancara yang dilakukan dengan guru pengajar mata pelajaran Informatika Kelas X tanggal 14 - 15  November 2023, diperoleh masalah dimana siswa  masih kurang termotivasi dalam belajar serta kurang terlibat aktif dalam proses belajar mengajar yang mengakibatkan siswa masih mengalami kesulitan dalam memahami materi-materi yang disampaikan oleh guru sehingga berdampak pada kurang optimalnya proses belajar mengajar yang dibuktikan dengan total rata-rata hasil belajar siswa yang jika dirata-ratakan masih tergolong rendah yakni hanya 75,75. Selain itu permasalahan lain yang dihadapi adalah keterbatasan waktu yang dimiliki guru dalam menyampaikan materi ke pada siswa. Penilitian ini bertujuan untuk menghasilkan media pembelajaran interaktif  berbasis mobile learning yang dirancang menggunakan Articulate Storyline 3 dengan model pengembangan ADDIE (Analysis, Design, Development, Implementation, Evaluation) serta mengetahui kelayakan media pembelajaran yang dibuat berdasarkan hasil uji validitas. Hasil penelitian ini adalah media pembelajaran interaktif berbasis mobile learning dengan tingkat kelayakan berdasarkan hasil uji validasi ahli media dan materi yang mendapat nilai kelayakan rata-rata 97% dengan kategori “Sangat Layak” dan uji pengguna (siswa) mendapat nilai kelayakan 85,19% dengan kategori “Sangat Layak”. Kemudian untuk uji validitas dan reliabilitas untuk instrumen pengguna mendapatkan hasil yang valid dan sangat reliabel. Dengan demikian penggunaan media pembelajaran interaktif berbasis mobile leraning layak digunakan dalam proses belajar mengajar dikelas X SMK Negeri Model Gorontalo.
Pengembangan Media Pembelajaran Berbasis Game Pada Materi Konsep IP Address Di Smkn 1 Limboto
Authors: Dunggio Mahmud Septian , Mulyanto Arip , A. Hermila , Rohandi Manda , Olii Salahudin , Dangkua Eka Vickraien
Published: February 2025

Materi subnetting merupakan aspek yang sering kali dianggap rumit karena memerlukan ketelitian dalam perhitungan-perhitungannya, dan rendahnya pemahaman siswa terhadap konsep ini dapat menghambat kemampuan mereka dalam mengelola dan merancang jaringan komputer. Oleh karena itu, permasalahan ini dapat menghambat siswa ketika melakukan konfigurasi IP Address di komputer jaringan.Faktor lain yang menyebabkan siswa sulit dalam memahami materi IP address adalah kecenderungan penggunaan metode ceramah-praktek yang dilakukan oleh guru menggunakan media pembelajaran berbasis canva, dimana media berbasis canva kurang cocok untuk simulasi perhitungan seperti ip addressPenelitian ini memakai jenis peneltian Research and Development (RD). Research and Development (RD) merupakan jenis peneltian yang mengeluarkan suatu produk dan menguji keefektifan produk tersebut. Analisis kebutuhan digunakan untuk memungkinkan pembuatan produk tertentu, dan efektivitas produk tersebut diujikan untuk menguji efektivitas produk tersebut dengan tujuan bisa bermanfaat untuk masyarakat secara umum.Dari hasil penelitian yang dilakukan, menghasilkan media pembelajaran berbasis Game pada materi konsep IP Address. Hal ini dicapai dengan memanfaatkan Software Construct 2.Media pembelajaran yang dikembangkan berisi materi, games sederhana, serta kuis sebagai latihan soal. Media yang dikembangkan sesuai dengan model penelitian yang digunakan yaitu RD model 4D (Define, Design, Development and Disseminate). dapat ditarik kesimpulan yakni Media pembelajaran berbasis game pada materi konsep IP Address telah berhasil dikembangkan melalui metode Research and Development (RD) dengan model 4D (Define, Design, Develop, Disseminate). Proses pengembangan dimulai dari analisis kebutuhan, perancangan desain, pengembangan game, hingga penyebaran kepada pengguna akhir
Prototype Augmented Reality Sebagai Media Pembelajaran Sejarah Perkembangan Komputer di SMA Negeri 6 Gorontalo Utara
Authors: Hidayatullah Galih Sarwo , Novian Dian , Pakaya Jemmy A. , Suhada Sitti , Bouty Abdul Aziz , A. Hermila
Published: February 2025

Penggunaan media pembelajaran dalam mata pelajaran informatika masih sangat minim, guru cenderung mengandalkan metode konvensional yang bersifat monoton. Hal ini mengakibatkan siswa menjadi pasif dan kesulitan dalam memahami materi, hal ini nampak pada penyajian materi sejarah perkembangan komputer. Penelitian ini bertujuan untuk mengembangkan media pembelajaran berbasis augmented reality dalam materi ajar sejarah perkembangan komputer di SMA Negeri 6 Gorontalo Utara, serta menilai validitas dan respon pengguna terhadap media tersebut. Penelitian ini menerapkan metode Research and Development (RD) dengan memanfaatkan desain model pengembangan 4D yang meliputi tahap Define, Design, Develop, dan Disseminate. Hasil penelitian ini diperoleh dari pengujian kelayakan media oleh ahli media, yang menilai media tersebut sebagai “Sangat Layak” dengan kelayakan sebesar 85%. Pengujian oleh ahli materi juga menilai media tersebut sebagai “Sangat Layak” dengan kelayakan sebesar 85%. Selain itu, hasil uji respon pengguna (yang dilakukan dengan siswa) dinilai sebagai “Sangat Layak” dengan kelayakan sebesar 90%. Hasil penelitian menunjukkan bahwa media pembelajaran berbasis augmented reality pada materi ajar sejarah perkembangan komputer di SMA Negeri 6 Gorontalo Utara telah terbukti valid dan layak untuk digunakan sebagai sarana pembelajaran.
Pengembangan Media Pembelajaran Interaktif Mata Pelajaran Bahasa Inggris Menggunakakn Aplikasi Adobe Animate Kelas VII Di SMP Negeri 3 Gorontalo
Authors: Latief Mukhlisulfatih , Lahinta Agus , H Haeriani
Published: February 2025

This study aims to develop interactive learning media for English subjects for grade VIII students at SMP Negeri 3 Gorontalo using the Adobe Animate application. The research method used is Research and Development (RD) with the ADDIE development model, which includes the stages of Analysis, Design, Development, Implementation, and Evaluation. The Analysis stage involves observation and interviews to identify the needs and problems faced by students and teachers in learning English. At the Design stage, learning media are designed by considering aspects of interactivity and ease of use. The Development stage produces interactive learning media products which are then tested through alpha and beta tests to obtain feedback from experts and users. Implementation was carried out in grade VIII of SMP Negeri 3 Gorontalo to test the effectiveness of the media in increasing student motivation and learning outcomes. The results of the study showed that interactive learning media based on Adobe Animate was effective in improving students' understanding of English comic dialogue material, as well as increasing students' motivation and interest in learning. This media also helps teachers in delivering material in a more interesting and interactive way. Thus, the development of this interactive learning media is expected to be an innovative solution in learning English at the junior high school level.
Rekonstruksi Laporan Keuangan Lembaga Amil Zakat (LAZ) Saku Yatim Berdasarkan PSAK 109
Authors: Yuliyantika Rinda , Shulthoni Moch. , Mulyono Resha Dwi Ayu Pangesti
Published: February 2025

Penelitian ini bertujuan untuk merekonstruksi laporan keuangan Lembaga Amil Zakat (LAZ) Saku Yatim berdasarkan PSAK 109 di Kabupaten Lumajang. Laporan keuangan di Lembaga Amil Zakat (LAZ) Saku Yatim Kabupaten Lumajang belum sesuai dengan PSAK 109. Metode yang digunakan dalam penelitian ini adalah metode kualitatif dengan menggunakan studi kasus yang ada di Lembaga Amil Zakat (LAZ) Saku Yatim, karena laporan keuangannya tidak sesuai dengan PSAK 109. Penelitian ini menggunakan data primer dan sekunder. Data primer dalam penelitian ini diperoleh dengan cara melakukan wawancara dan observasi kepada pihak Lembaga Amil Zakat Saku Yatim. Data sekunder diperoleh dari transaksi keuangan di Lembaga Amil Zakat Saku Yatim. Teknik pengumpulan data dalam penelitian ini adalah dengan cara observasi, wawancara, dan dokumentasi. Teknik analisis data dalam penelitian ini dengan cara berpedoman pada PSAK 109. Hasil dari penelitian ini menunjukkan bahwa laporan keuangan yang ada di Lembaga Amil Zakat (LAZ) Saku Yatim Kabupaten Lumajang belum sesuai dengan PSAK 109. Rekonstruksi laporan keuangan Lembaga Amil Zakat (LAZ) Saku Yatim Kabupaten Lumajang sesuai dengan tujuan dari penelitian yang mengacu pada PSAK 109 berupa laporan posisi keuangan (neraca), laporan perubahan dana, laporan arus kas, dan catatan atas laporan keuangan.
Analisis Pengendalian Internal Penerimaan dan Pengeluaran Kas Studi Kasus Pada PT. Pegadaian Cabang Blangpidie
Authors: Muliyani Muliyani , Alfi Della
Published: February 2025

Tujuan penelitian ini adalah untuk mengetahui bagaimana Sistem Pengendalian Intern Terhadap Penerimaan dan Pengeluaran Kas pada PT. Pegadaian Cabang Blangpidie. Penelitian ini menggunakan metode penelitian kualitatif dan teknik pengumpulan data dengan teknik wawancara dan dokumentasi. penelitian ini menggunakan teknik pengumpulan data dengan cara wawancara dengan mewawancarai beberapa pegawai.  PT. Pegadaian Cabang Blangpidie memerlukan adanya suatu pengendalian guna tercapainya tujuan perusahaan secara menyeluruh. Pengendalian ini bersifat preventif dan pengendalian represif, hal ini diperlukan agar tidak terjadi masalah dalam pengelolaan kas. Hasil penelitian ini menunjukkan pengendalian intern pada sistem akuntansi penerimaan dan pengeluaran kas PT. Pegadaian Cabang Blangpidie sudah cukup baik, tetapi masih ada beberapa kelemahan seperti kurangnya loket, keterlambatan pada pembuatan laporan keuangan dan belum adanya system informasi manajemen sehingga dalam efisiensi waktu belum tercapai. Untuk meningkatkan pengendalian intern beberapa saran yang dapat diterapkan yaitu, penegasan terhadap otoritas dan tugas fungsi setiap karyawan, pelatihan kerja bagi karyawan yang rangkap jabatan dan pemanfaatan teknologi mutakhir secara maksimal.
Pengaruh Lokasi Dan Produk Terhadap Pendapatan Agen BRILink Pada Kabupaten Gorontalo
Authors: Polapa Marsyandah Irwan , Bokiu Zulkifli , Lukum Amir
Published: February 2025

Penelitian ini bertujuan untuk mengetahui pengaruh lokasi dan produk terhadap pendapatan agen BRILink pada Kabupaten Gorontalo. Metode penelitian yang digunakan adalah metode kuantitatif. Jenis data yang digunakan adalah data primer berupa kuesioner yang dibagikan langsung kepada agen BRILink Kabupaten Gorontalo. Metode pengambilan sampel menggunakan metode Proportionate Stratified Random Sampling diperoleh 82 sampel. Teknik analisis data dalam penelitian ini menggunakan uji statistik deskriptif, uji validitas dan reliabilitas, uji asumsi klasik, dan uji hipotesis dengan menggunakan analisis regresi linier berganda. Hasil penelitian ini menunjukkan bahwa 1) Lokasi berpengaruh positif dan signifikan terhadap pendapatan agen BRILink pada Kabupaten Gorontalo. 2) Produk berpengaruh positif dan signifikan terhadap pendapatan agen BRILink pada Kabupaten Gorontalo. 3) Secara simultan lokasi dan produk berpengaruh positif terhadap pendapatan agen BRILink pada Kabupaten Gorontalo.
Pengaruh Harga dan Jam Kerja Terhadap Pendapatan
Authors: Baga Novianti , Bokiu Zulkifli , Husain Siti Pratiwi
Published: February 2025

Penelitian ini bertujuan untuk mengetahui pengaruh harga dan jam kerja terhadap pendapatan rumah makan di Kabupaten Gorontalo. Metode penelitian yang digunakan adalah kuantitatif deskriptif. Sampel dalam penelitian ini sebanyak 50 data yang ditentukan berdasarkan simple random sampling. Jenis data yang digunakan adalah data primer yang diperoleh dari hasil penyebaran kusioner kepada pemilik rumah makan di Kabupaten Gorontalo. Teknik analisis data yang digunakan dalam penelitian ini adalah analisis regresi linier berganda. Hasil penelitian menunjukkan secara parsial harga dan jam kerja berpengaruh positif dan signifikan terhadap pendapatan rumah makan di Kabupaten Gorontalo. Secara simultan harga dan jam kerja berpengaruh signifikan terhadap pendapatan rumah makan di Kabupaten Gorontalo. Hasil ini dibuktikan dengan koefisien determinasi sebesar 44%.
Sistem Akuntansi Untuk Menunjang Pengelolaan UMKM
Authors: Mantali Merlin , Amaliah Tri Handayani , Mahmud Muliyani
Published: February 2025

Penelitian ini bertujuan untuk mengetahui informasi sistem akuntansi pada Toko Retail Rilan Star. Metode penelitian yang digunakan adalah metode penelitian deskriptif kualitatif. Jenis data yang digunakan adalah data primer yaitu data berdasarkan hasil observasi, wawancara dan dokumentasi. Hasil penelitian menunjukan bahwa sistem informasi yang dimiliki Toko Retail Rilan Star  belum sepenuhnya terintegrasi, terdapat kelemahan pada segi pencatatan yang masih belum bagus dimana dilakukan secara manual dan belum tersusun rapih. Terdapat perbedaan dalam bagian-bagian sistem informasi akuntansi antara pengembangan sistem lama dan baru, bagian tersebut meliputi: People, Procedure, Data, dan Infrastruktur informasi teknologi.
Pengaruh Tingkat Pendidikan, Kesadaran Wajib Pajak dan Kualitas Pelayanan Fiskus Terhadap Kepatuhan Wajib Pajak Membayar PBB-P2
Authors: Tapathfeto Jasintha Dessy , Nafi Sulche Ifone , Seliamang Yunelci Martha
Published: February 2025

Penelitian ini bertujuan untuk mendapatkan bukti empiris pengaruh Tingkat Pendidikan, Kesadaran wajib pajak dan kualitas pelayanan fiskus yang dapat mempengaruhi kepatuhan wajib pajak untuk membayar PBB-P2. Penelitian ini dilakukan di Desa Naibonat Kabupaten Kupang. Pengumpulan data dilakukan dengan observasi dan pembagian kuesioner. Dalam penelitian ini sumber data yang digunakan yaitu data primer dan data sekunder. Instrumen penelitian yang digunakan menggunakan skala Model analisis yaitu analisis linear berganda dengan program aplikasi SPSS V.25 Hasil menunjukan tingkat Pendidikan tidak berpengaruh signifikan terhadap kepatuhan wajib pajak dalam membayar PPB-P2, sedangkan kesadaran wajib pajak dan kualitas pelayanan fiskus berpengaruh positif dan siginikan terhadap kepatuhan wajib pajak dalam membayar PBB-P2. Hasil penelitian ini berimplikasi tingkat Pendidikan pada teori kepatuhan yaitu kepatuhan wajib pajak dalam membayar pajak tidak hanya karena tingkat Pendidikan yang semakin tinggi, tetapi harus ada kesadaran dari wajib pajak dan pelayanan fiskus yang baik dalam mempengaruhi kepatuhan wajib pajak, sehingga bagi pemerintah daerah harus bisa memanfaatkan sampai pemerintahan terkecil yaitu pemerintah desa dalam pemungutan PBB-P2.
Analisis Kinerja Keuangan Sebelum dan Setelah Kebijakan Refocusing dan Realokasi Anggaran Pada Pemerintah Kota Gorontalo
Authors: Anwar Bernito Muslim , Amaliah Tri Handayani , Mahdalena Mahdalena
Published: February 2025

Tujuan dari penelitian ini adalah untuk melihat dampak dari kebijakan refocusing dan realokasi anggaran sebagai penanganan Covid-19 pada kinerja keuangan pemerintah kota Gorontalo. Metode penelitian yang digunakan adalah kuantitatif deskriptif serta dalam penelitian menggunakan rasio kemandirian keuangan daerah, rasio efektivutas PAD, rasio belanja modal dan rasio pertumbuhan PAD. Hasil penelitian menunjukkan bahwa rasio kemandirian keuangan, rasio efektivitas dan rasio pertumbuhan pendapatan asli daerah tidak terdapat perbedaan kinerja sebelum dan setelah refocusing dan realokasi anggaran pada pemerintah kota Gorontalo serta tidak terdapat perbedaan yang signifikan sebelum dan setelah kebijakan refocusing dan realokasi anggaran yang artiannya bahwa pada saat pandemi pemerintah kota Gorontalo terus berupaya menjaga kinerja keuangan daerah.
Mobile Robot Navigation with Obstacles Avoidance by Witch of Agnesi Algorithm with Minimum Power
Authors: A. Issa Bayadir , D. Almukhtar Hayder , Q.  Thabit Qabeela , T. Rashid Mofeed
Published: February 2025

Obstacle avoidance in mobile robot path planning represents an exciting field of robotics systems. There are numerous algorithms available, each with its own set of features. In this paper a Witch of Agnesi curve algorithm is proposed to prevent a collision by the mobile robot's orientation beyond the obstacles which represents an important problem in path planning, further, to achieve a minimum arrival time by following the shortest path which leads to minimizing power loss. The proposed approach considers the mobile robot's platform equipped with the LIDAR 360o sensor to detect obstacle positions in any environment of the mobile robot. Obstacles detected in the sensing range of the mobile robot are dealt with by using the Witch of Agnesi curve algorithm, this establishes the obstacle's apparent vertices' virtual minimum bounding circle with minimum error. Several Scenarios are implemented and considered based on the identification of obstacles in the mobile robot environment. The proposed system has been simulated by the V-REP platform by designing several scenarios that emulate the behavior of the robot during the path planning model. The simulation and experimental results show the optimal performance of the mobile robot during navigation is obtained as compared to the other methods with minimum power loss and also with minimum error. It's given 96.3 percent in terms of the average of the total path while the Bezier algorithm gave 94.67 percent. While in experimental results the proposed algorithm gave 93.45 and the Bezier algorithm gave 92.19 percent.
Analisis Risiko Ergonomi dan Prevalensi Musculoskeletal Disorders (MSDs) pada Pekerja Kasir Menggunakan CMDQ dan REBA
Authors: Handayani Sri Dewi , Suharyanto Suharyanto
Published: February 2025

Work-related musculoskeletal disorders (MSDs) are one of the leading causes of sick leave and disability in many countries. Cashier jobs have a high risk of MSDs due to static work postures and repetitive movements. Several studies have identified ergonomic risk factors in cashier workers but studies using CMDQ and REBA in analyzing the risk of MSDs in workers are still limited. This study aims to evaluate the prevalence and risk factors causing MSDs in cashier workers and identify the relationship of individual and occupational factors to MSDs complaints. This study involved 114 self-service cashier workers aged 18-55 years. Data were collected through the completion of demographic questionnaires, CMDQ forms and work posture analysis using REBA. REBA results show that 1.8% of workers have low risk, 77.2% of workers have work postures with moderate risk levels, 18.4% of workers have high risk, and 2.6% have very high risk so that further investigation and changes to posture are needed. Results from the CMDQ showed that the highest prevalence of pain was in the right leg (86.8%), left leg (84.2%), and lower back (76.3%). Significant risk factors included age (p = 2.781 x 10-8), length of service (p = 6.66 x 10-11), body mass index (p = 1.47 x 10-7), gender (p = 0.005), and work posture measured using REBA (p = 2.2 x 10-16). Kendall-Tau test also showed a positive relationship between these variables and MSDs complaints. This study shows that cashier workers with high work posture risk have a greater prevalence of MSDs. Multiple linear regression tests showed that the dominant factors causing MSDs complaints in cashier workers were posture and workstation height. Ergonomic recommendations are needed to reduce the risk of MSDs, especially for workers with high risk levels.
Identifikasi Waste pada detail Aktivitas Pekerjaan Pembesian
Authors: Dwini Teras Angelina , Rachmawati Farida
Published: February 2025

Waste frequently occurs in construction projects, encompassing both material and non-material waste. This study aims to analyze the waste generated during rebar work, specifically focusing on the detailed activities of measuring and cutting rebar, using the Value Stream Mapping (VSM) approach. The research was conducted at a rebar fabrication facility for a 14-story high-rise building project in Surabaya. VSM was employed to visualize work processes by identifying specific activities in rebar operations, allowing for precise identification of waste. Primary data were collected through direct field observations, while secondary data were obtained from project documents.The findings revealed 11 detailed activities in the measuring process and another 11 in the cutting process. Among these activities, the largest types of waste identified were waiting (10 points), unnecessary motion (6 points), and defects (3 points), totaling 22 waste-related activities. Identifying waste-generating activities and their types in construction work facilitates improved work process efficiency, reduced operational costs, and optimized resource utilization. Furthermore, this also supports enhanced productivity, better work quality, and environmental sustainability by minimizing construction waste.
Captura de adultos de broca del caf� en trampas con atrayentes
Authors: Bustillo-Pardey �lex Enrique , Jim�nez Quintero Mauricio
Published: February 2025

Evaluaciones recientes en Colombia muestran que estas nuevas trampas, con este difusor capturan m�s brocas que aquellas convencionales que se ven�an evaluando, multiplic�ndose las capturas hasta 200 veces.
Penyuluhan Pembuatan Susu Daun Kelor Pada Ibu Rumah Tangga Desa Jatisari Sebagai Upaya Pencegahan Stunting
Authors: Fuzani Sri Dinasyah Ratna , Kaseka Novio Dofany Atrisca Sevena
Published: February 2025

Stunting menjadi masalah gizi serius yang menarik perhatian global, khususnya di negara-negara berkembang. Di Indonesia, prevalensi stunting masih tinggi, terutama di Kabupaten Malang. Penelitian ini bertujuan untuk memberikan edukasi kepada masyarakat, khususnya ibu rumah tangga di Desa Jatisari, tentang pemanfaatan daun kelor (Moringa oleifera) sebagai nutrisi pencegah stunting. Metode yang digunakan meliputi penyuluhan dan pendampingan langsung dalam pembuatan susu kelor. Hasilnya menunjukkan peningkatan pengetahuan dan keterampilan ibu rumah tangga dalam memproduksi susu kelor, serta kemampuan untuk memasarkan produk secara online. Inisiatif ini tidak hanya meningkatkan gizi anak, tetapi juga kesejahteraan ekonomi masyarakat.
Pelatihan Dan Pengenalan Kepada Siswa Sma Negeri Surabaya Barat Tentang Pengolahan Sampah Plastik Menjadi Bahan Bakar Minyak Menggunakan Sistem Pirolisis Kapasitas 10 Liter
Authors: Gunawan Mochamad Syahrul , Muharom Muharom , Siswadi Siswadi , Riyadi Slamet , Nugroho Wahyu , Muchid Mochammad
Published: February 2025

Dengan rendahnya tingkat daur ulang saat ini dan peningkatan produksi plastik secara eksponensial, terjadi peningkatan pemborosan bahan plastik, sehingga diperlukan teknologi baru untuk pemurnian limbah. Saat ini di surabaya, hanya sekitar 14% limbah plastik yang didaur ulang, yang sebagian besar dicapai melalui daur ulang mekanis. Metode daur ulang kimia seperti pirolisis dapat meningkatkan tingkat daur ulang ini secara signifikan, karena dapat memanfaatkan campuran limbah plastik tidak seperti daur ulang mekanis. Pirolisis menawarkan alternatif yang ramah lingkungan untuk insinerasi dan penimbunan sampah yang tidak efisien. Saat ini, tantangan utama untuk pirolisis limbah plastik adalah tidak tersedianya dan kualitas bahan baku yang tidak konsisten, pemilahan yang tidak efisien dan karenanya mahal, tidak adanya pasar yang menyatakan kurangnya produk standar, dan peraturan yang tidak jelas seputar pengelolaan limbah plastik. Solusi yang mungkin dapat mencakup kerja sama yang erat antara penyedia bahan baku dan konverter untuk memastikan kuantitas dan kualitas bahan baku yang stabil. Tujuan kegiatan ini untuk melaksanakan pelatihan dan pengenalan bagi siswa SMA Wachid Hasyim 5 Surabaya tentang proses kondensasi pada pengolahan limbah plastik menjadi bahan bakar minyak menggunakan sistem pirolisis dengan kapasitas 10 liter.
The Hottest Neptunes Orbit Metal-rich Stars
Authors: Vissapragada Shreyas , Behmard Aida
Published: February 2025

The Neptune desert is no longer empty. A handful of close-in planets with masses between those of Neptune and Saturn have now been discovered, and their puzzling properties have inspired a number of interesting theories on the formation and evolution of desert-dwellers. While some studies suggest that Neptune desert planets form and evolve similarly to longer-period Neptunes, others argue that they are products of rare collisions between smaller planets, or that they are the exposed interiors of giant planets (i.e., “hot Jupiters gone wrong”). These origin stories make different predictions for the metallicities of Neptune desert host stars. In this paper, we use the homogeneous catalog of stellar metallicities from Gaia Data Release 3 to investigate the origins of Neptune desert dwellers. We find that planets in the Neptune desert orbit stars that are significantly more metal rich than the hosts of longer-period Neptunes (p = 0.0016) and smaller planets (p = 0.00014). In contrast, Neptune desert host star metallicities are statistically indistinguishable from those of hot Jupiter host stars (p = 0.55). Therefore, we find it relatively unlikely that Neptune desert planets formed and evolved similarly to longer-period Neptunes, or that they resulted from collisions between smaller planets, at least without another metallicity-selective process involved. A more straightforward explanation for this result is that planets in the desert truly are the exposed interiors of larger planets. Atmospheric spectroscopy of Neptune desert worlds may therefore provide a rare glimpse into the interiors of giant exoplanets.
Impact of Annually Variable Dust Activity on the Recession of the Martian South Polar Seasonal Cap
Authors: Li Zhibin , Liu Jianjun , Tian Renhao , Chen Zhaopeng , Zhang Qing , Zhang Jingjing , Yan Wei , Fu Qiang , Liu Shaoran , Ma Nannan
Published: February 2025

Suspended dust is a vital component of Martian climatic system and its temporal-spatial variation can influence the recession of the South Polar Seasonal Cap (SPSC). However, dust activity varies across different stages and years, affecting the SPSC recession process differently. Continuous observations of SPSC/South Polar Residual Cap (SPRC) across several Martian years, alongside segmented analyses of annual dust activity, will provide new insights into the climate conditions of Martian south polar region. Here, we performed a combined analysis on the extents of SPSC from MY28-MY31 and MY36, together with the concurrent Martian atmospheric optical thickness, to assess the influence of dust activity at various recession time steps. Results show that dust activity peaks in both spring and summer can impact the SPSC/SPRC recession. The recession process is accelerated if the dust activity peak occurs earlier. If the timing of the peak dust activity is identical, the intensity of the dust activity influences the recession. Specific regions, such as the “Cryptic Region” and the Mountains of Mitchel, respond uniquely to dust activity. Higher dust intensity slows the recession of the Cryptic Region, while the SPSC in the Mountains of Mitchel area shows variability in recession timing based on local dust activity intensity. This research provides observational constraints that enhance our understanding of Martian atmospheric circulation and can potentially aid the future development of polar dust activity models.
Multi-observatory Study of Young Stellar Energetic Flares (MORYSEF): No Evidence for Abnormally Strong Stellar Magnetic Fields after Powerful X-Ray Flares
Authors: Getman Konstantin V. , Kochukhov Oleg , Ninan Joe P. , Feigelson Eric D. , Airapetian Vladimir S. , Waggoner Abygail R. , Cleeves L. Ilsedore , Forbrich Jan , Dzib Sergio A. , Law Charles J. , Rab Christian , Krolikowski Daniel M.
Published: February 2025

We explore the empirical power-law relationship between X-ray luminosity (L
X) and total surface magnetic flux (Φ), established across solar magnetic elements, time- and disk-averaged emission from the Sun, older active stars, and pre-main-sequence (PMS) stars. Previous models of large PMS X-ray flares, lacking direct magnetic field measurements, showed discrepancies from this baseline law, which MHD simulations attribute to unusually strong magnetic fields during flares. To test this, we used nearly simultaneous Chandra X-ray and HET-HPF near-infrared observations of four young Orion stars, measuring surface magnetic fields during or just after powerful PMS X-ray flares. We also modeled these PMS X-ray flares, incorporating their measured magnetic field strengths. Our findings reveal magnetic field strengths at the stellar surface typical of nonflaring PMS stars, ruling out the need for abnormally strong fields during flares. Both PMS and solar flares deviate from the L
X–Φ law, with PMS flares exhibiting a more pronounced deviation, primarily due to their much larger active regions on the surface and larger flaring loop volumes above the surface compared to their solar counterparts. These deviations likely stem from the fact that powerful flares are driven by magnetic reconnection, while baseline X-ray emission may involve less efficient mechanisms like Alfvén wave heating. Our results also indicate a preference for dipolar magnetic loops in PMS flares, consistent with Zeeman–Doppler imaging of fully convective stars. This requirement for giant dipolar loops aligns with MHD predictions of strong dipoles supported by polar magnetic surface active regions in fast-rotating, fully convective stars.
Relativistic Binary Precession: Impact on Eccentric Massive Binary Black Hole Accretion and Hydrodynamics
Authors: DeLaurentiis Stanislav , Haiman Zoltán , Westernacher-Schneider John Ryan , Krauth Luke Major , Davelaar Jordy , Zrake Jonathan , MacFadyen Andrew
Published: February 2025

Recent hydrodynamical simulations have shown that circumbinary gas disks drive the orbits of massive binary black holes (BHs) to become eccentric, even when general relativistic (GR) corrections to the orbit are significant. Here, we study the GR apsidal precession of eccentric equal-mass massive binary BHs in circumbinary disks via two-dimensional hydrodynamical simulations. We perform a suite of simulations comparing precessing and nonprecessing binaries across a range of eccentricities, semimajor axes, and precession rates. We find that the GR precession of the binary's semimajor axis can introduce a dominant modulation in the binary's accretion rate and the corresponding high-energy electromagnetic light curves. We discuss the conditions under which this occurs and its detailed characteristics and mechanism. Finally, we discuss the potential to observe these precession signatures in electromagnetic- and gravitational-wave observations, as well as the precession signal's unique importance as a potential tool to constrain the mass, eccentricity, and semimajor axis of binary merger events.
Black Hole Supernovae, Their Equation of State Dependence, and Ejecta Composition
Authors: Eggenberger Andersen Oliver , O’Connor Evan , Andresen Haakon , da Silva Schneider André , Couch Sean M.
Published: February 2025

Recent literature on core-collapse supernovae suggests that a black hole (BH) can form within ∼1 s of shock revival, while still culminating in a successful supernova. We refer to these as BH supernovae, as they are distinct from other BH formation channels in both timescale and impact on the explosion. We simulate these events self-consistently from core collapse until 20–50 days after collapse using three axisymmetric models of a 60 M
⊙ zero-age main-sequence progenitor star and investigate how the composition of the ejecta is impacted by the BH formation. We employ Skyrme-type equations of state (EOSs) and vary the uncertain nucleonic effective mass, which affects the pressure inside the proto–neutron star through the thermal part of the EOS. This results in different BH formation times and explosion energies at BH formation, yielding final explosion energies between 0.06 and 0.72 × 1051 erg with 21.8–23.3 M
⊙ of ejecta, of which 0–0.018 M
⊙ is 56Ni. Compared to expectations from 1D simulations, we find more nuanced EOS dependences of the explosion dynamics, the mass of the BH remnant, and the elemental composition of the ejecta. We investigate why the explosions survive despite the massive overburden and link the shape of the diagnostic energy curve and character of the ejecta evolution to the progenitor structure.
Long-term Evolution of Sco X-1: Implications for the Current Spin Frequency and Ellipticity of the Neutron Star
Authors: Kar Abhijnan , Ojha Pulkit , Bhattacharyya Sudip
Published: February 2025

Sco X-1 is the brightest observed extrasolar X-ray source, which is a neutron star (NS) low-mass X-ray binary (LMXB) and is thought to have a strong potential for continuous gravitational waves (CW) detection due to its high accretion rate and relative proximity. Here, we compute the long-term evolution of its parameters, particularly the NS spin frequency (ν) and the surface magnetic field (B), to probe its nature and its potential for CW detection. We find that Sco X-1 is an unusually young (∼7 × 106 yr) LMXB and constrain the current NS mass to ∼1.4–1.6 M
⊙. Our computations reveal a rapid B decay, with the maximum current value of ∼1.8 × 108 G, which can be useful to constrain the decay models. Note that the maximum current ν value is ∼550 Hz, implying that, unlike what is generally believed, a CW emission is not required to explain the current source properties. However, ν will exceed an observed cutoff frequency of ∼730 Hz, and perhaps even the NS breakup frequency, in the future without a CW emission. The minimum NS mass quadrupole moment (Q) to avoid this is ∼(2–3) × 1037 g cm2, corresponding to a CW strain of ∼10−26. Our estimation of current ν values can improve the CW search sensitivity.
Evaluating the Depth–Age Hypothesis for the Evolution of the Lunar Regolith
Authors: Bart Gwendolyn D.
Published: February 2025

Lunar regolith is the fractured rock layer covering most of the lunar surface. This rock is fractured into regolith primarily by repeated meteorite impacts over eons. The depth of the regolith is determined by the maximum depth reworked by impactors. Older surfaces are expected to have thicker regoliths because they have been exposed to longer periods of bombardment than younger surfaces—a concept I refer to as the Depth–Age Hypothesis. To test the hypothesis, I compare published, measured regolith depths on mare basalts with published, measured surface ages of those mare. If the Depth–Age Hypothesis is correct, older mare surfaces should have thicker regoliths than younger surfaces. Contrary to the hypothesis, published data show that both younger and older lunar surfaces have median regolith depths ranging from about 3 to 9 m. Possible reasons for this finding include variations among measurement methods, reporting regolith depths with too great precision, and the inherent variability of the lunar regolith.
Recolonisation or invasion? First insights into the origin of the newly established beaver populations in Bulgaria via eDNA
Authors: Bobeva Anelia , Nikova Polina , Borissov Simeon , Koshev Yordan , Todorov Vladimir , Dimitrova Blagovesta , Ignatov Milen , Rolečková Barbora , Kachamakova Maria
Published: February 2025

After a series of reintroductions (including unofficial releases) and natural recolonizations during the last decades, the Eurasian beaver (Castor fiber) is returning throughout Europe. However, it is hard to distinguish the species from its American relative, Castor canadensis, that has also been successfully introduced and is thriving in some parts of the continent as an invasive species. In this context, it is important to obtain genetic information for the newly recorded populations, in order to take appropriate management actions. The current paper presents results of the first genetic assay of five recently established beaver populations along the Danube River and two of its tributaries in Northern Bulgaria. The non-invasive method of eDNA sampling was applied. We found that all populations belong to Castor fiber and are of the haplotypes from the refugial populations in Norway and France. We hypothesise that they naturally spread from Romania, where reintroductions have been done using individuals from Bavaria, which were in turn translocated from Scandinavia, France, Russia and Poland.
DNA metabarcoding study of the diet and feeding preferences of the Grey Plover (Pluvialis squatarola) during migration on the SW Black Sea coast, Bulgaria
Authors: Vassileva Liliana , Lozanova Lyudmila Lozanova , Marinov Martin , Neov Boyko , Moriniere Jerome , Simov Nikolay , Nikolov Boris , Klayn Stefania
Published: February 2025

We studied the diet composition and feeding preferences of the Grey Plover (Pluvialis squatarola) at its migration stopover at Pomorie Lake on the South-Western Black Sea coast, Bulgaria, through DNA metabarcoding of faeces.

Faecal samples were collected in autumn 2020 and spring 2021, preserved in 95% ethanol, and stored at -20ºC until DNA extraction and metabarcoding. Two molecular markers were initially targeted - ITS2 for plant identification, and CO1 for animal identification; however, the subsequent analyses focused on the dominant animal prey identified by CO1. Concurrently, coastal habitats where the birds were observed to feed, such as the surf zone and the sandy supralittoral shore, were also sampled to determine prey availability.

The Grey Plover had a broad diet spectrum, with 332 prey taxa in total identified by metabarcoding, belonging to 7 phyla, 14 classes, 24 orders, 78 families and 119 genera. The birds consumed both terrestrial and marine taxa, suggesting that multiple coastal habitats are used for foraging. Terrestrial arthropods, particularly insects, predominated in the diet, while mytilid bivalves were the most represented marine taxon.

The results suggest that at the studied migration stopover site at the SW Black Sea, the Grey Plover was a generalist feeder, which agrees with previous studies from different areas. Most birds fed on insects (Diptera, Lepidoptera, Hymenoptera); a few individuals also specialised on marine molluscs, arachnids and polychaetes. The most abundant potential prey in the environ­ment were not the most frequently consumed, possibly because the sampling methods were not suitable for the full spectrum of available prey (particularly the flying insects).

We found limited seasonal variation in Grey Plover diet composition and preferences, with the proportions of some prey taxa differing slightly between seasons, probably due to seasonal variations in their abundance and activity in coastal habitats.

Our results contribute to the knowledge of Grey Plover diet, prey choice and habitat use in a little-studied region on the Black Sea-Mediterranean Flyway. The new information could contribute towards designing effective conservation measures to preserve habitat quality at stopover sites for this wader and others with similar ecology, ensuring migration success at a time when migratory bird populations are increasingly threatened by habitat loss and degradation.

The results are presented and analysed in detail in Vassileva et al. (2024).

The full CO1 dataset is available in BOLD (https://doi.org/10.5883/DS-PLUVS).
Some notes on the digitisation workflow at the LWS herbarium
Authors: Novikov Andriy , Nachychko Viktor
Published: February 2025

The digitisation workflow currently applied at the herbarium of the State Museum of Natural History of the NAS of Ukraine (LWS) differs from other similar by cascade ('object-to-data-to-image') multilevel organisation. Its application is predicted by the need to preselect specimens by taxon and region, as well as by batched digitisation, which occurs with significant interruptions. Focusing on certain taxonomic groups from specific regions allows us to digitise specimens that could be more valuable for scientific processing. At the same time, the herbarium benefits from such a digitisation model by revising the existing collection classification and keeping the initial ID system. Represented digitisation workflow can be easily reproduced in any herbarium with a limited budget. Provided schemas and notes will help maintain the digitisation, choose appropriate equipment and materials, and pay attention to critical aspects.
Feeding ecology of the invasive Cynoscion regalis on the Portuguese coast: Insights from a molecular approach
Authors: Corona Luana , Castilho Rita , Simões Joana , Francisco Sara , Pereira Ana M , Veríssimo Ana , Robalo Joana
Published: February 2025

Invasive species can profoundly disrupt native ecosystems, as their self-sustaining populations alter niche occupation, increase competition, and exert predation pressure on indigenous species. Predation by invasive species, particularly on vulnerable life stages such as larvae and juveniles, can lead to population declines, loss of genetic diversity, disruption of food webs, extinction of keystone species, impaired ecosystem services, and delayed recovery of indigenous populations. Cynoscion regalis (Bloch and Schneider, 1801), commonly known as the weakfish, is a sciaenid species native to the eastern coast of North America, where it acts as a generalist predator. Since 2009, its presence has also been documented in European waters, prompting concerns about its potential impact on local fish communities. This study presents the first molecular analysis of the feeding ecology of C. regalis outside its native range. Using molecular barcoding of prey items coupled with metabarcoding of gastric fluids, this research provides insights into the weakfish’s diet in Portuguese waters (southwestern Europe) beyond those obtained in studies relying solely on visual stomach content identification. This underscores the value of molecular techniques in dietary analysis. Findings reveal that C. regalis exhibits cannibalistic tendencies, with conspecifics forming a substantial part of its diet. Other dietary species include Atherina presbyter, Diplodus annularis, Dicentrarchus punctatus, Engraulis encrasicolus, Sardina pilchardus, and Spondyliosoma cantharus. In addition, other prey were identified at the family level as Sparidae and Scorpaenidae. The presence of these species, many of which are common in estuarine habitats, particularly during juvenile stages, supports the establishment of weakfish populations in nursery areas, potentially resulting in adverse ecological impacts. This study contributes to understanding the dynamics of invasive species, highlighting the ecological interactions and disturbances they may cause. Effective monitoring and management of weakfish populations outside their native range are critical to mitigating potential ecological consequences.Parte superior do formulário
Diversification outbreaks and dynamics of Asian leaf-litter frogs, genus Leptobrachella (Anura, Megophryidae), with the description of a new species from Guizhou Province, China
Authors: Luo Tao , Zhao Zi-Fa , Wang Zhong-Lian , Lan Chang-Ting , Xiao Ming-Yuan , Deng Huai-Qing , Xiao Ning , Zhou Jiang
Published: February 2025

The uplift of the Qinghai-Tibet Plateau and the Indochina extrusion are two of the most prominent consequences of the India–Asia collision. These two geologic events greatly altered topography and drainage patterns that, in turn, affected the regional climate, the landscape and the evolution of biodiversity. Despite this, little is known about how orogeny and climate affect the evolution of biodiversity, especially the dynamics of diversification, including origins, peaks and endings. Here, we performed phylogenetic and biogeographic analyses of Leptobrachella distributed in Southeast Asia and southern China, based on mitochondrial 16S ribosomal RNA. The results revealed that Leptobrachella may be roughly divided into Clade I from south of the Indo-Burma and Clade II from central and northern Indo-Burma and southern China. We then investigated the diversification of Leptobrachella over time through biogeographic meta-analyses. We showed that the speciation of Leptobrachella was dominated by in situ diversification that was most likely associated with the uplift of the Qinghai–Tibet Plateau, the Indochina extrusion and the intensification of the Asian monsoon and that diversification may have been less influenced by temperature. In situ diversification experienced three small accelerated phases and one decelerated phase initiated at ~ 32 Ma, with a sharp increase at ~ 15 Ma, a peak at ~ 8.7 Ma and a gradual decline after ~ 6 Ma and the peaks of diversification were asynchronous in Southeast Asia and southern China. Our results suggest a three-phase scenario for the diversification of Leptobrachella, with periods of acceleration and deceleration at every stage, a pattern consistent with the Indochina extrusion, the uplift of the Qinghai–Tibet Plateau and the intensification of the Asian monsoon since the Oligocene. This study highlights how biogeographic meta-analyses can be utilised to estimate diversification history in taxa lacking sufficient molecular markers to quantify the impact of orogeny and climatic shifts on diversification processes. In addition, we also identified four undescribed species and described one new species, Leptobrachella xishuiensissp. nov., from Xishui County, Guizhou Province, China.
Le diagnostic global d’entrée dans la certification des comptes publics locaux
Authors: Vught Thierry
Published: February 2025

Cet article rappelle le contexte dans lequel prend place l’expérimentation de la certification des comptes publics locaux, son calendrier et ses étapes successives, les enseignements provisoires qui peuvent en être tirés, la méthode qui a été suivie, pour la conduire, puis il insiste sur les sujets qui sont examinés dans ce cadre.
Les aspects financiers des contrats de la commande publique et la prévention des risques des collectivités publiques
Authors: Vincent-Legoux Marie-Caroline
Published: February 2025

La prévention des risques des collectivités publiques peut guider le choix des clauses financières des contrats de la commande publique et cet objectif doit être maintenu pendant la durée de l’exécution des contrats.