bluuebunny/crossref_metadata_2025_split huggingface dataset:
Efektivitas Model Problem Based Learning Bermetode Eksperimen dengan Media PAREPIA untuk Meningkatkan Pemahaman Konsep IPAS Materi Sistem Pernapasan Manusia
Authors: Lathifa Fadhilah Wirda , Fakhriyah Fina , Khamdun Khamdun 
Published: February 2025

Pemahaman terhadap suatu konsep sangat penting dalam membentuk pemikiran siswa. Namun, hal berbeda terjadi di kelas V SD Negeri 1 Gemiring Kidul, dimana rata-rata pemahaman konsep IPAS peserta didik tergolong rendah. Rendahnya pemahaman konsep IPAS tersebut didasarkan pada hasil tes studi pendahuluan dengan perolehan rata-rata sebesar 58,66. Selain permasalah tersebut, diperoleh permasalahan lain yaitu pelaksanaan pengajaran yang kurang variatif sehingga menyebabkan peserta didik bersikap pasif selama kegiatan belajar. Inovasi dalam pengajaran perlu diterapkan sebagai upaya meningkatkan pemahaman konsep IPAS peserta didik. Salah satu cara inovasi pengajaran yaitu pelaksanaan pengajaran menggunakan model Problem Based Learning (PBL) bermetode eksperimen dengan bantuan media PAREPIA (Papan Respirasi Manusia). Penelitian ini bertujuan untuk (1) menganalisis perbedaan rata-rata pretest dan posttest peserta didik, dan (2) menganalisis peningkatan pemahaman konsep IPAS peserta didik. Siswa kelas V di SD Negeri 1 Gemiring Kidul terdiri dari 23 siswa yang dipilih sebagai sampel penelitian ini. Penelitian kuantiatif pada penelitian ini menggunakan pre-eksperimental one group pretest-posttest design. Data yang digunakan peneliti diperoleh dari hasil observasi, wawancara, tes, dan dokumentasi dengan pengujian uji normalitas, Paired Sample T-Test, dan N-Gain. Hasil penelitian diperoleh rata-rata pretest sebesar 47,13 meningkat menjadi 87,78 pada rata-rata posttest dan hasil Sig. (2-tailed) 0,000 kurang dari 0,05. Peneliti juga memperoleh hasil uji N-Gain Score 0,7668 (tinggi) dan N-Gain Percent 76,68% (efektif). Diperoleh kesimpulan bahwa (1) rata-rata pretest dan posttest pemahaman konsep IPAS materi sistem pernapasan manusia memiliki perbedaan, dan (2) pemahaman konsep IPAS peserta didik meningkat.
Corrosion Mitigation with Chemical Injection in Welded Carbon Steel Pipe for Offshore Water Treatment Plant
Authors: Mgbemere Henry Ekene , Agunsoye Johnson Olumuyiwa , Ojemeni Kenechi Ijeoma , Izuegbu Obianuju Vivian 
Published: February 2025

In Floating, Production, Storage, and Offloading (FPSO) vessels, the steel pipes used for water treatment plants are susceptible to corrosion from dissolved oxygen and bacteria in seawater. Chemicals such as oxygen scavengers and biocides are used to combat this. However, using oxygen scavengers can lead to bacterial growth, which can cause a reduction in pipe diameter, increased water pressure, and potential leaks, particularly in the welded sections. Biocides are used to address bacterial growth. In this study, steel coupons were welded with a low-hydrogen electrode, and water from the Lagos lagoon was used to replicate seawater composition. The study employed two different media, agitated and non-agitated, to investigate the effect of water flow dynamics on corrosion rate. Chemical injections did not effectively mitigate corrosion in the tested conditions but sometimes increased it. The results revealed that general corrosion was observed in the samples when no chemical was injected into the system, with an average 0 mm/yr corrosion rate. The agitation of the media led to increased corrosion rates. For biocide injection, the rate increased from 1 mm/y to 2 mm/yr, while in oxygen scavenger solution, the rate increased from an average of 4 mm/yr to 8 mm/yr. Analysis of the cultured seawater parameters showed variations in salinity, total dissolved solids, oxidation-reduction potential, pH, temperature, specific gravity, and conductivity across different media. The pH of the solution generally increased with time, while the addition of an oxygen scavenger reduced the pH value from approx. 6.5 to 6.2. Agitation of the media and chemical injection increased the conductivity of the solution. Biocide introduction lowered the redox potential, while oxygen scavenger made the redox potential unstable. X-ray diffraction analysis of the steel surface exposed to the seawater indicated the presence of various compounds, suggesting ongoing corrosion processes and the existence of organic and inorganic contaminants. This research has the potential to significantly impact offshore water treatment, providing valuable insights into the challenges and potential solutions for corrosion mitigation in this critical area.
Control Environment and Operational Efficiency in SACCOs: a case study of Butuuro Peoples’ SACCO
Authors: Barigye Benson , Ocan Johnson , Akena Adyanga Francis 
Published: February 2025

The study assessed the influence of control environment on the operational efficiency in SACCOs using a case study of Butuuro SACCO. The primary data collected from members of the Board, Supervisory Committee, Elders (who served on the Board and retired) and staff of the SACCO was collected using self-administered questionnaires framed on the Likert scale of 1 to 5. The sample of 54 respondents was selected using Yamane formula. Individual respondents in the study were selected using simple random sampling techniques. The reliability of data was achieved using the Cronbach Alpha which was established at 0.851 for the control environment and 0.704 for operational efficiency. Collected data was analyzed using inferential statistics with the aid of Statistical Package for Social Scientists (SPSS) version 20. The results revealed a significant positive relationship between control environment and operational efficiency (r=0.472, P=0.000), control environment explains 22% (R2 =0.22) of variance in operational efficiency, the beta value for control environment from the regression model was 0.472 at p< 0.03. The study concludes that control environment has a significant positive association with operational efficiency. The study recommends a strong and effective environment for improving the operational efficiency of SACCOs.
Quarry operations and soil health: Tracing metal pollution in Awi and Njagachan communities, Nigeria
Authors: Udiba Udiba Ugumanim , Modey Dorothy Kuka , Ama John , Amah Joseph Etim , Sam-Uket Nwuyi Okori , Emuru Edward Odey , Chukwubuike Confidence Ikenna 
Published: February 2025

<p align="justify">This study investigated the influence of quarry operations on soil health by evaluating the metal pollution status of soils around major quarry communities (Awi and Njagachan) in Akamkpa, Nigeria. Soil samples were subjected to wet digestion and quantified using an Atomic Absorption Spectrophotometer (Model AA-6800, Japan). The concentrations of lead (63.34–96.34 mg/kg), cadmium (4.29–7.40 mg/kg), mercury (2.34–3.76 mg/kg), arsenic (2.48–5.21 mg/kg), and selenium (1.22–2.75 mg/kg) were all below the U.S. Environmental Protection Agency (US-EPA), Dutch remediation levels, and other soil guidelines. However, significant spatial variation in metal levels across quarry sites points to anthropogenic influences, with quarries likely contributing to the elevated metal concentrations. Contamination factors indicated moderate contamination by lead, considerable contamination by cadmium, and very high contamination by mercury. The degree of contamination was high for all quarries except Ding Zing quarry, which showed a very high degree during the wet season. Ecological risk assessment revealed low potential risk from lead and arsenic, moderate to high risk from cadmium, and very high risk from mercury. Geo-accumulation indices suggested that soils were largely unpolluted by lead and arsenic but ranged from unpolluted to moderately polluted by cadmium and mercury. The study concludes that quarry activities contribute to elevated metal concentrations, posing varying levels of ecological risk. Continuous monitoring is strongly recommended to prevent potential long-term human and environmental health risks, with a focus on addressing mercury contamination. Regulatory measures should be enforced to mitigate further pollution. </p>
Relationship between human resource planning policies and employee performance: A case study in total Uganda limited
Authors: Khailey Abdikarim Hassan , Ibrahim Bashir Abdullahi 
Published: February 2025

This research aims to investigate the relationship between personnel performance and HR planning procedures. Qualitative and quantitative research methods were adopted using secondary and primary sources. A descriptive research design was used. A total of 141 branch employees were targeted but 104 were sampled randomly. A survey questionnaire and interview guides were used to collect data and the Statistical Package for Social Sciences and content analysis were used for analysis. The presentation was in tables and prose form. The findings were that surveys and interviews yield results in the same format because dissemination of HR policies is important to employee effectiveness. It was established that employee performance is an avenue for increasing performance. Total Uganda and other organizations employing human resource planning can employ HR planning to enable them to arrive at the performance. Similarly, employee performance is a way to improve performance. The study contributes to the literature by evaluating the human resource planning policies affecting employee performance at Total Uganda Limited. This study holds significant practical implications for organizations, particularly those navigating dynamic and competitive environments like Total Uganda Limited. Therefore, organizations like Total Uganda Limited should prioritize and promote workforce planning.
PENGARUH PENGGUNAAN ALAT PERMAINAN MONOPOLI TERHADAP KEMAMPUAN KOGNITIF ANAK USIA DINI DI RA SHAZIA PALEMBANG
Authors: Wahyuni Gusti , Puspita Sari Jaya Melinda , Ahmad Syarwani 
Published: February 2025

Permasalahan diatas maka rumusan masalah dalam penelitian ini adalah apakah ada pengaruh dalam penggunaan alat permainan monopoli terhadap perkembangan kognitif anak usia 5-6 Tahun di RA Shazia Palembang? Tujuan penelitian ini adalah untuk mengetahui pengaruh dalam Penggunaan Alat Permainan Monopoli terhadap perkembangan kognitif anak usia 5-6 tahun di RA Shazia Palembang. Penelitian ini dilakukan di salah satu lembaga pendidikan formal yaitu RA Shazia Palembang, penelitian dilaksanakan selama 3 bulan. Dalam penelitian ini metode yang digunakan adalah metode eksperimen dengan jenis penelitian kuasi eksperimen, terdapat 2 kelas disini yaitu kelas experimen dan kontrol. Jumlah sample yang menjadi objek penelitian adalah 35 siswa. Kelas B2 sebagai kelas ekperimen dan kelas B1 Sebagai kelas kontrol. Metode pengambilan data menggunakan tehnik obsevasi, anekdot, dan dokumentasi. Sedangkan untuk proses analisa data, peneliti menggunakan uji t. Pada penelitian ini diperoleh hasil t hitung sebesar 3,00 dimana nilai t tabel sebesar 2.02 pada taraf signifikansi 0,05 dan dengan uji satu pihak. Karena nilai t yang diperoleh lebih besar dari nilai t tabel 3.00>2.02, maka hipotesis nol (Ho) ditolak dan alternatif (Ha) diterima. Artinya terdapat peningkatan kemampuan berhitung anak usia dini dengan menggunakan metode monopoli di RA Shazia Palembang
PENERAPAN MODEL PEMBELAJARAN TWO STAY TWO STRAY PADA PEMBELAJARAN IPA SISWA KELAS V SD NEGERI 11 SALING
Authors: Safitri Dini , Lokaria Eka , Raflesia Citra 
Published: February 2025

Penelitian ini bertujuan untuk meningkatkan hasil belajar siswa Sekolah Dasar (SD) kelas V dalam pembelajaran IPA melalui penerapan model Two Stay Two Stray. Penelitian ini menggunakan metode pembelajaraan kuantitatif. Subjek penelitian adalah siswa kelas V sekolah dasar (SD). Pengumpulan data menggunakan metode pembelajaraan. Data yang diperoleh Hasil penelitian menunjukkan sebagai berikut: penerapan model Two Stay Two Stray dalam pembelajaran IPA dengan materi suhu dan kalor dapat meningkatkan hasil belajar siswa dalam pembelajaran IPA yaitu dalam bagian pre-test rata-rata sebesar 43,1sedangkan post-test rata-rata sebesar 81,76, terbukti bahwa penerapan model Two Stay Two Stray dapat meningkatkan hasil belajar siswa sekolah dasar Negeri 11 saling yang berjumlah 24 siswa setelah penerapan Two Stay Two Stray yakni jumlah siswa yang mencapai KKM sebanyak 20 siswa (100%).
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE STUDENT TEAM ACHIEVEMENT DIVISION (STAD) TERHADAP HASIL BELAJAR IPS SISWA KELAS V SD NEGERI 1 LUBUK NGIN
Authors: Mayang Sari Vionita , Lokaria Eka , Yuneti Armi 
Published: February 2025

Penelitian ini bertujuan untuk untuk untuk mengetahui ketuntasan hasil belajar siswa kelas V setelah diterapkan metode STAD di SD Negeri 1 Lubuk Ngin.. Desain penelitian berbentuk eksperiment kategori pre-test and post-test group. Penelitian dilakukan di SD Negeri 1 Lubuk Ngin dengan populasi dan sampel yaitu siswa kelas V. Teknik pengumpulan data dilakukan dengan teknik tes yang terdiri dari 15 soal pilihan ganda. Data yang terkumpul kemudian dianalisis menggunakan uji-Z. Berdasarkan hasil penelitian diperoleh hasil nilai rata-rata, nilai rat-rata pada pre-test 44,65 meningkat menjadi 83,48 pada pos-test dimana hasil meningkat sebesar 38,83. Sedangkan pada perhitungan uji-t diperoleh bawah zhitung = 6,32 > ztabel = 1,64 sehingga terbukti bahwa Ha diterima dan Ho di tolak. Sehingga dapat disimpulkan bahwa hasil belajar IPS siswa kelas V SD Negeri 1 Lubuk Ngin setelah diterapkan model STAD signifikan tuntas.
PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) BERBANTUAN SMART BOARD TERHADAP HASIL BELAJAR MATEMATIKA SISWA KELAS III SD NEGERI 17 KOTA LUBUKLINGGAU
Authors: Putri Tarisa , Mandasari Novianti , Maharani Tidi 
Published: February 2025

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran Problem Based Learning (PBL) Berbantuan Smart Board terhadap hasil belajar matematika siswa kelas III SD Negeri 17 Lubuklinggau tahun 2023/2024. Metode yang digunakan dalam penelitian ini adalah metode true eksperimen dengan desain penelitian pretest-posttest countrol group design. Populasi yang digunakan adalah seluruh kelas III SD Negeri 17 Lubuklinggau. Teknik pengambilan sampel menggunakan simple random sampling, dan sampel dalam penelitian ini sebanyak 2 kelas yaitu kelas III.A dengan jumlah 28 siswa dan kelas III.B dengan jumlah 29 siswa. Hasil penelitian ini menunjukkan bahwa hasil tes yang diberikan sebelum pembelajaran dengan menggunakan model problem based learning (PBL) berbantuan smart board menunjukkan bahwa nilai rata-rata pada eksperimen sebesar 36,03 sedangkan hasil tes sebelum pembelajaran pada kelas kontrol menunjukkan nilai rata-rata sebesar 41,75. Kemudian untuk hasil tes yang diberikan setelah pembelajaran menunjukkan bahwa nilai rata-rata pada kelas eksperimen sebesar 78,20 sedangkan pada kelas kontrol nilai rata-ratanya sebesar 68,46. Sedangkan hasil perhtiungan uji-t test polled varians diperoleh sebesar 10,04 dan dibandingkan dengan nilai sebesar 2,00 dengan taraf signifikansi 5%. Dari hasil tersebut menunjukkan bahwa sehingga diterima dan ditolak. Hal ini menunjukkan bahwa ada pengaruh model pembelajaran problem based learning (PBL) berbantuan smart board terhadap hasl belajar matematika siswa kelas III SD Negeri 17 Lubuklinggau tahun pelajaran 2023/2024.
PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING BERBANTUAN MEDIA VIDEO INTERAKTIF TERHADAP HASIL BELAJAR IPA KELAS V SD NEGERI 46 KOTA LUBUKLINGGAU
Authors: Rima Astari Ninik , Krisnawati Yuni , Sujarwo  
Published: February 2025

Penelitian ini bertujuan untuk mengetahui ketuntasan secara signifikan hasil belajar IPA Kelas V SD Negeri 46 Lubuklinggau setelah diterapkan model Problem Based Learning berbantu media video interaktif. Metode penelitian yang digunakan dalam penelitian ini dilaksanakan tanpa adanya kelas pembanding hanya satu kelas (pre-eksperimental). Populasi dalam penelitian ini adalah seluruh siswa kelas VA dan VB SD Negeri 46 Lubuklinggau tahun ajaran 2023/2024. Pemilihan sampel dilakukan dengan teknik simple random sampling. Sampel dalam penelitian ini yaitu seluruh siswa kelas VB yang diambil secara acak. Pengumpulan data dilakukan dengan teknik tes berbentuk uraian. Data yang terkumpul dianalisis menggunakan uji-t pada taraf signifikan α = 0,05. Rata-rata hasil belajar siswa sebesar 81,01 dan persentase jumlah siswa yang tuntas mencapai 90,48%. diterima dan ditolak. Berdasarkan hasil analisis data dapat disimpulkan bahwa hasil belajar IPA kelas V SD Negeri 46 Lubuklinggau setelah diterapkan model Problem Based Learning berbantu media video interaktif secara signifikan tuntas.
70 jaar Statuut voor het Koninkrijk der Nederlanden
Authors: van der Kooi M.J. 
Published: February 2025

70 jaar Statuut voor het Koninkrijk der Nederlanden. Verslag van het symposium van de Nederlandse Vereniging voor Rechtsvergelijking van 8 mei 2024
Het is inmiddels 70 jaar geleden sinds het Statuut voor het Koninkrijk der Nederlanden in het leven werd geroepen. Op 8 mei 2024 kwamen experts bijeen om met elkaar te spreken over de huidige staat van het Koninkrijk. Als student was ik daarbij aanwezig en in dit verslag heb ik de discussie neergeschreven. Het blijkt dat het Statuut breed gesteund wordt, maar dat er misschien ook verandering nodig is. De toekomst van ons Koninkrijk wordt ten dele bepaald door de toekomst van het Statuut. Een discussie daarover is dus fundamenteel.
Maatwerk of eenduidigheid
Authors: Bosker Jacqueline 
Published: February 2025

Made to measure or uniformity. (Un)equal treatment in probation.
In order to support desistance from crime and rehabilitation into society, the probation service has to adapt its service to the individual problems and strengths of offenders. As a result, offenders who have committed similar crimes but differ in the problems related to their offending behavior are approached differently. However, equal treatment of offenders by the probation service is important if their problems are comparable. In this article the results are described of a study about the level of agreement between probation officers about intervention plans. In addition, it was studied whether the use of an instrument for structured decision making improves agreement about these plans.
Enkel een band?
Authors: Legters Ellen , Attinger Marelle 
Published: February 2025

Nothing but an ankle monitor
This article analyses the legal framework of electronic monitoring (EM) in the Dutch penal system in light of the requirements for a justified interference on article 8 of the ECHR. Recommendation CM/REC (2014)4 of the Committee of Ministers of the Council of Europe regarding EM is also addressed, as it elaborates on Article 8 ECHR in this context. Additionally, the article considers the methods and practical application of EM, addressing the different technologies (RFID and GPS) used in EM.
A MEDICAÇÃO QUE APAZIGUA E A FAMÍLIA QUE CUIDA: REPRESENTAÇÕES SOCIAIS DE PROFISSIONAIS SOBRE USUÁRIOS COM ESQUIZOFRENIA
Authors: Da Silva Geane Correa , Rocha Jucimere Fagundes Durães , Ribeiro Victória Silva Midlej , Pereira Samantha Souza da Costa , Bento Mariana Viana , Fonseca Bárbara Soares , Martins Jayne Duarte , Sampaio Cristina Andrade 
Published: February 2025

A Rede de Atenção Psicossocial é constituída por um agrupamento de serviços criados no âmbito do Sistema Único de Saúde com vistas à produção do cuidado em liberdade para pessoas que se encontram em sofrimento psíquico. Este estudo buscou compreender as representações sociais dos profissionais da Rede de Atenção Psicossocial sobre os usuários com esquizofrenia. Trata-se de uma pesquisa de campo, qualitativa desenvolvida no norte do estado de Minas Gerais, Brasil norteada pelo arcabouço teórico-metodológico da Teoria das Representações Sociais do Psicólogo Social Serge Moscovici, a partir da abordagem estrutural de Jean-Claude Abric. Os resultados direcionaram para duas temáticas importantes no contexto da saúde mental: a medicação como aliada no cuidado ampliado e a família como centro de cuidado. Desse modo, das relações estabelecidas na produção do cuidado em saúde mental emerge a necessidade de políticas que favoreçam o fortalecimento de artifícios assistenciais, dentre eles o compartilhamento do cuidado entre profissionais e familiares.
Pelayanan Berbasis Online Pada Aplikasi Sistem Informasi Manajemen Pelayanan (SIMPEL) Di Dinas Penanaman Modal Dan Pelayanan Terpadu Satu Pintu Provinsi Riau
Authors: Akhwany Aidillia , Fikri Rijalul 
Published: February 2025

Online-Based Services on the Service Management Information System (SIMPEL) Application at the Riau Province Investment and One-Stop Integrated Services Office experienced problems, namely openness in the follow-up process where the public often does not receive clear information, indicating a lack of coordination. between field units, there are indications of technical problems with online services.
The purpose of this study is to find out online-based services on the service management information system application (SIMPEL) at the Riau Province Investment and One-Stop Integrated Services Office.
The research method used was a qualitative descriptive research. The data collection techniques use library research and field studies consisting of observation, interviews and documentation. The data analysis techniques used are data reduction, data display and verification. Based on the research results, it was concluded that the implementation of online-based licensing services in general has not run optimally considering that the online-based licensing service program is an innovation program that has just been implemented at DPMPTSP. Efforts made to face obstacles include optimizing systems and information, effective communication, ongoing evaluation, close collaboration with the IT Team and periodic evaluation and adjustments. Maximize service delivery both in terms of process and service output and the Department must be able to accommodate complaints from each applicant and improve service performance at the Riau Province One-Stop Integrated Services and Investment Service.
Pemeliharaan Lobster Pasir (Panulirus Homarus) Menggunakan Keramba Jaring Dasar Di Perairan Selat Bali
Authors: Ulkhaq Mohammad Faizal , Efendi Irzal 
Published: February 2025

Lobster pasir (Panulirus homarus) merupakan salah satu komoditas laut yang memiliki nilai permintaan yang tinggi dan menjadi komoditas ekspor ke Singapura, Hongkong, Cina, Jepang, Thailand, Malaysia, Vietnam dan Korea. Namun, sebagian besar lobster pasir yang diekspor masih berasal dari hasil tangkapan alam yang produktivitasnya semakin menurun. Oleh karena itu, peran usaha budidaya lobster pasir sangat diperlukan sebagai upaya untuk memenuhi permintaan lobster yang tinggi serta menjaga populasi lobster pasir di alam. Teknologi budidaya lobster pasir dapat dilakukan dalam keramba jaring apung, keramba jaring tancap maupun keramba jaring dasar/tenggelam. Sistem keramba jaring dasar/tenggelam (submersible cage) dianggap paling baik karena dapat menghindarkan organisme budidaya dari predator, fluktuasi suhu permukaan serta bahan polutan permukaan seperti sampah dan tumpahan minyak. Tujuan dalam penelitian ini yaitu untuk mengevaluasi sistem budidaya lobster pasir yang menggunakan keramba jaring dasar, terutama di Perairan Selat Bali. Penelitian ini dilaksanakan mulai 9 Agustus – 9 Oktober 2021 di Unit Percontohan Budidaya Lobster Sistem Keramba Jaring Dasar, Kelompok Pembudidaya Ikan (Pokdakan) ”PESONA BAHARI” Banyuwangi, Jawa Timur. Metode yang digunakan dalam penelitian ini yaitu deskriptif eksploratif dan komparatif melalui pengumpulan data primer dan sekunder. Parameter yang diamati meliputi laju pertumbuhan spesifik, rasio konversi pakan dan sintasan. Data yang diperoleh selanjutnya dianalisa secara deskriptif dalam bentuk tabel. Hasil penelitian menunjukkan bahwa sistem budidaya lobster pasir dengan keramba jaring dasar berbentuk bulat di Perairan Selat Bali menunjukkan nilai SGR, FCR dan SR yang lebih tinggi dibandingkan bentuk persegi.