bluuebunny/crossref_metadata_2025_split huggingface dataset:
PENGEMBANGAN MULTIMEDIA PEMBELAJARAN BERBASIS MOBILE LEARNING UNTUK MENINGKATKAN PEMAHAMAN KONSEP SISWA PADA MATA PELAJARAN GEOGRAFI KELAS XI DI SMA NEGERI 5 BANJARMASIN
Authors: Afriandy Muhammad , Mansur Hamsi , Dalu Zaudah Cyly Arrum 
Published: August 2024

Penelitian ini fokus pada kurangnya variasi dalam penggunaan media pembelajaran, keinginan siswa untuk pengalaman pembelajaran yang inovatif, dan kebutuhan untuk meningkatkan kemampuan pendidik dalam merancang media pembelajaran. Tujuan dari penelitian ini adalah mengembangkan multimedia pembelajaran yang menggunakan pendekatan mobile learning dan untuk mengevaluasi kelayakan multimedia pembelajaran berbasis mobile learning, serta dampaknya terhadap peningkatan pemahaman siswa dalam mata pelajaran geografi kelas XI di SMA Negeri 5 Banjarmasin. Jenis penelitian ini adalah penelitian dan pengembangan (Research and Development). Model yang digunakan pada penelitian ini adalah ADDIE , ada 5 tahapan dalam model ini diantaranya : analyze, design, development, implementation, evaluation. Teknik pengumpulan data yang digunakan observasi, angket, wawancara, tes dan dokumentasi merupakan teknik analisi data deskriptif kuantitatif menggunakan skala likert dan tes awal – tes akhir untuk melihat kelayakan multimedia pembelajaran berbasis mobile learning, respon siswa setelah penggunaan multimedia pembelajaran berbasis mobile learning dan pengaruh multimedia pembelajaran berbasis mobile learning terhadap pemahaman konsep siswa setelah penggunaan multimedia tersebut. Hasil penelitian menunjukkan bahwa multimedia pembelajaran berbasis mobile learning dianggap "Sangat Layak" dari segi media dan materi. Respons siswa terhadap multimedia ini positif baik dalam uji perorangan, uji kelompok kecil, maupun uji kelompok besar. Peningkatan pemahaman konsep siswa juga terlihat dari skor rata-rata tes awal yang mencapai 38,63 menjadi skor rata-rata tes akhir sebesar 83,63. Berdasarkan hasil ini, dapat disimpulkan bahwa multimedia pembelajaran berbasis mobile learning sangat layak digunakan dan mampu meningkatkan pemahaman konsep siswa.
PENGEMBANGAN VIDEO TUTORIAL UNTUK MENINGKATKAN KEMAMPUAN SISWA MEMBUAT POSTER PROMOSI MATA PELAJARAN DASAR DESIGN GRAFIS KELAS X MULTIMEDIA DI SMK MAESTRO ISLAMIC SCHOOL BANJARMASIN
Authors: Ramadhan Bangun , Utama Agus Hadi , Mastur Mastur 
Published: August 2024

Guru dituntut untuk selalu mengembangkan media yang bisa meningkatkan minat para siswa, dalam hal ini guru kurang memaksimalkan penggunaan media pembelajaran berbasis video kepada siswa, agar tujuan pembelajaran dapat tercapai salah satu usaha untuk mewujudkan hal tersebut adalah dengan mengembangkan video pembelajaran yang bisa menyampaikan semua informasi lebih menarik, informatif, dan terstruktur. Melalui pengembangan media video tutorial diharapkan dapat menjadi solusi permasalahan tersebut. Tujuan penelitian ini adalah (1) Mengembangkan media pembelajaran video tutorial mata pelajaran dasar design grafis cara membuat poster promosi di SMK Maestro Islamic School Banjarmasim, (2) Mengetahui kemampuan yang diperoleh siswa, setelah menggunakan media pembelajaran berbasis video tutorial cara membuat poster promosi pada mata pelajaran dasar designn grafis di SMK Maestro Islamic School Banjarmasin. Penelitian pengembangan media video tutorial ini merupakan jenis penelitian R&D dengan menggunakan 4D yaitu Define, Design, Development, dan Dissemination yang telah dimodifikasi menyesuaikan dengan keperluan.Berdasarkan hasil penilaian ahli media dapat diperoleh dari validator sebesar 96,06% dengan katergori “sangat layak”, hasil penilaian ahli materi dapat diperoleh dari validator sebesar 86,53% dengan kategori “sangat layak”, hasil kuesioner respon siswa dapat diperoleh sebesar 88,88% dengan katergori “sangat layak”, peningkatan hasil belajar siswa mendapat nilai gain sebesar 0,63 dengan kategori “sedang”. Dari hasil penelitian data disimpulkan bahwa video tutorial pembuatan poster promosi layak digunakan sebagai video pembelajaran bagi siswa.
ЕФЕКТИВНІСТЬ ЗАСТОСУВАННЯ ЕЛЕКТРОФЛОТАЦІЇ ДЛЯ ОЧИЩЕННЯ НАФТОВМІСНИХ ВОД
Authors: ВОЗНЮК Марта , ШАБЛІЙ Тетяна , ГОМЕЛЯ Микола 
Published: August 2024

Дана робота присвячена оцінці ефективності застосування електрофлотації із використанням алюмінієвого аноду для вилучення нафти з модельних воднонафтових розчинів різної мінералізації (сольового вмісту). Електрофлотаційна обробка воднонафтових емульсій забезпечує досить високий ступінь видалення нафти, що є на рівні 98,6–99,9 % з застосуванням алюмінієвого електроду при анодній щільності струму 1,65–7,39 А/дм2 для модельних солоних вод та 0,07–0,50 А/дм2 для модельних прісних нафтовмісних вод. Найкращі результати досягаються протягом перших 15 хвилин обробки водних нафтовмісних розчинів. Дослідження показує, що ефективність вилучення нафти з води залежить від її мінералізації (вмісту NaCl): в солоній воді процес очищення проходить ефективніше. Разом з тим, спостерігається зменшення концентрації хлорид-іонів та зростання рН середовища в оброблених електрофлотацією водах.
Hubungan Bayi Kecil Masa Kehamilan (KMK) dan Usia Kehamilan dengan Kejadian Stunting pada Bayi Usia 24-60 Bulan di RSUD Dr. Moewardi
Authors: Miftachuljannah Regita Ayu , Hidayah Dwi , Setyawan Sigit 
Published: August 2024

Pendahuluan: Stunting masih menjadi masalah kesehatan masyarakat yang menjadi perhatian di Indonesia. Bayi kecil masa kehamilan (KMK) dan usia kehamilan merupakan beberapa faktor risiko stunting namun hubungannya dengan kasus stunting pada bayi usia 24-60 bulan masih sedikit diteliti. Penelitian ini memiliki tujuan untuk mengetahui kaitan bayi kecil masa kehamilan (KMK) dan usia kehamilan dengan kejadian stunting pada bayi umur 24-60 bulan di Rumah Sakit Umum Daerah Dr. Moewardi.
Metode: Penelitian ini memakai desain studi analitik dan pendekatan case control dengan jumlah sampel sebanyak 60 anak berusia 24-60 bulan di RSUD Dr. Moewardi pada tahun 2022. Pengambilan sampel menggunakan metode purposive sampling. Data diambil dari rekam medis dan dilakukan analisis data menggunakan software SPSS dengan analisis bivariat (uji Chi-square) dan uji multivariat (uji regresi logistik).
Hasil: Dari hasil analisis statistik didapatkan bahwa ada hubungan yang signifikan antara bayi KMK dengan kejadian stunting (p = 0,018 dan OR 6.00), bayi KMK memiliki risiko 6 kali lebih tinggi terjadi stunting daripada bayi non KMK (sesuai masa kehamilan/SMK dan besar sesuai masa kehamilan/BMK). Usia kehamilan juga memiliki hubungan yang signifikan dengan stunting (p = 0,010 dan OR 4,07), usia preterm mempunyai risiko 4.07 kali lebih besar daripada bayi aterm.
Kesimpulan: Terdapat hubungan yang signifikan antara bayi kecil masa kehamilan dan usia kehamilan dengan kejadian stunting pada usia 24-60 bulan. Bayi kecil masa kehamilan memiliki pengaruh lebih kuat daripada usia kehamilan dalam kejadian stunting pada bayi usia 24-60 bulan.
Tujuan Pernikahan dalam Al-Quran dan Relevansinya dengan Fenomena Childfree (Perspektif Tafsir Maqāṣidī)
Authors: Fikriya Kinanthi , Tasrif Muh. 
Published: August 2024

Salah satu tujuan pernikahan adalah hadirnya anak yang merupakan amanah dari Allah. Namun ada beberapa pasangan yang memutuskan untuk childfree atau tidak ingin memiliki anak. Oleh karenanya, pandangan al-Quran tentang tujuan pernikahan diperlukan untuk menjawab fenomena childfree. Penelitian ini akan menjawab mengenai bagaimana konsep saki>nah, mawaddah, dan rah}mah dalam tujuan pernikahan serta relevansinya dengan fenomena childfree. Penelitian ini merupakan penelitian pustaka dengan menggunakan perspektif tafsir maqāṣidī untuk mengungkap dimensi makna terdalam dari konsep tujuan pernikahan dalam Al-Quran. Sumber data yang digunakan dalam penelitian ini adalah Q.S. ar-Ru>m [30]: 21, Q.S. al-A’ra>f [7]: 189, Q.S. an-Nisa>’ [4]: 1, Q.S. an-Nah}l [16]: 72, Q.S. an-Nu>r [24]: 32 dan Q.S. al-Furqa>n [25]: 74. Hasil dari penelitian ini menjelaskan bahwa tujuan pernikahan dalam al-Quran meliputi, 1) Saki>nah merupakan konsep keluarga yang membawa ketenangan, ketentraman, kedamaian jiwa. 2) Mawaddah adalah perasaan cinta, ingin bersama, yang diekspresikan melalui sikap dan perilaku dengan pasangan yang menentramkan jiwanya. 3) Rah}mah adalah di mana hubungan antar sesama anggota keluarga tersebut saling menyayangi, mencintai sehingga kehidupan keluarga tersebut diliputi oleh rasa kasih sayang. 4) Tujuan pernikahan dalam al-Quran adalah memiliki keturunan. Maka, pilihan childfree dilarang dalam pernikahan demi terjaganya maqasid shari’ah berupa hifz} ad-din, hifz} al-nafs, hifz} al-nasl, dan hifz} al-ma>l.
Reduction of Thermal Loading on ACSR Transmission Lines by Optimization of Integrated Power System
Authors: Mishra Akanksha , Beera S. ChandraSekhar , D. Vijaya Laxmi , K. Therissa 
Published: August 2024

Abstract

Maximum utilization of the ACSR conductors, renewable and optimal utilization of the non-renewable resources for meeting the energy requirements is the norm of the present Industrial world. Availability of quality, undisrupted and reliable power at affordable prizes to the customers is the objective of the research. In this paper, a multi- objective optimal power flow of the power system in the presence of Interline Power Flow Controller is proposed for an integrated transmission system. The objective function includes minimization of power loss, negative security margin (NSM), voltage deviation, and negative social welfare (NSW). Lessening of loss and NSW ensures a drop in per-unit charge of energy leading to a greater customer satisfaction. The proposition has been applied on an IEEE 30 bus system. A 24-hour loading of the transmission system has been used to study the reliability of the proposed system. This gives an insight into the actual loading scenario of the power system. The Moth Flame Optimization Algorithm has been used for the optimization of objective function. The results obtained have been presented, compared and analysed in detail.
Assessing Tourist Infrastructure Using a Multi-Criteria Decision-Making Model: A Case Study of Ardabil Province's Impact on Regional Tourism Development
Authors: Khaliji Mohammad Ali , Ghalehteimouri Kamran Jafarpour 
Published: August 2024

Abstract

The tourism sector in Iran, specifically in Ardabil province, is facing challenges related to spatial organization, limited data, and methodological obstacles that hinder comprehensive development planning. Achieving balanced growth and addressing regional disparities by effectively ranking and equitably allocating tourism infrastructure is crucial for advancing tourism in the region. This study utilizes the TOPSIS model and a descriptive-analytic approach to evaluate tourism infrastructure in Ardabil province and promote sustainable zone development, despite data constraints and methodological complexities. The research highlights the importance of coordinating spatial organization and enhancing interactions among tourist destinations, despite challenges in data collection and methodology. Ranking tourism infrastructure across different regions within the province is essential for informed decision-making. Ardabil 0.672207538, Bilesavar 0.648904625, Khalkhal: 0.545977855, Pars Abad 0.579013247, Kosar 0.521208804, Sareyn 0.541886571, Meshkinshar 0.393576942, Moghan 0.367070217, Namin: 0.30225629, Nir 0.175678498. Ardabil and Sareyn are the top-ranked destinations based on the criteria used for town ranking. These findings emphasize the need for strategic interventions, investments, and the establishment of a more balanced and sustainable tourism industry in Ardabil province, despite limitations in data and methodology.
Forest Fragmentation Dynamics in the Direct Influence Area of Iguaçu National Park, Brazil
Authors: Munhoz Hudson Moggioni , Francisco Bruno Santos , Prudente Victor Hugo Rohden , Mercante Erivelto , Temponi Lívia Godinho 
Published: August 2024

Abstract

The landscape in the Gonçalves Dias river sub-basin is composed of the eastern portion of Iguaçu National Park and the agricultural matrix, inserted within its direct influence area. The sub-basin covers a priority area for biodiversity conservation and restoration in Paraná, as well as encompassing a strategic area for the formation of ecological corridors. We assessed the temporal dynamics of forest fragments in the eastern direct influence area of Iguaçu National Park and identified the predominant factors for the current landscape configuration. We used Geoprocessing techniques for the automatic delimitation of the sub-basin and Remote Sensing for the spatiotemporal analysis of Landsat images at 15-year intervals (1986, 2001, and 2016) to determine the history of land use and land cover changes. We obtained metrics and indices of the fragments composing the landscape of the agricultural matrix in 2016. Our spatiotemporal analysis revealed that the agricultural matrix was already fragmented in 1986 and that there was an increase in native forest cover during the analyzed period. We identified physical constraints for the implementation of agricultural activities, which were related to the native forest cover rate and its distribution. Of the 204 forest fragments identified in the landscape, 90% have an area below 50 ha. The fragmented landscape in the direct influence area of Iguaçu National Park was the result of the historical process of predominantly agricultural land use, guided by the few physical constraints of the relief.
Climate policy portfolios that accelerate emission reductions
Authors: Wilson Charlie , Arvanitopoulos Theodoros , Schaub Simon , Jordan Andrew , Tosun Jale , Vasilakos Nicholas 
Published: August 2024

Abstract

The corpus of national climate policies continues to grow, but to what effect? Using data on 2,782 policy instruments in 43 OECD countries and major emerging economies over the period 2000–2019 we show that national climate policy portfolios that specialise on certain instrument types and sectors are associated with faster reductions in fossil CO2 emission intensity. Supported by exemplar country case studies, we also provide quantitative evidence that the effectiveness of climate policy is amplified by the presence of long-term emission reduction targets and governmental bodies including dedicated ministries and intergovernmental organisations. Over the study period, the cumulative CO2 emissions avoided by adopting all portfolios amounted to 15.9 GtCO2 of which half was in the emerging economies. Our findings identify what type of climate policy portfolios are best at accelerating emission reductions in line with Paris Agreement goals.
Halide perovskite and polymer composite film for bright light emitting devices
Authors: Cheng Maoding , Robinson Brooke , Shah Manoj , Mondragon Araceli Herrera , Rodriguez Roberto Gonzalez , Cui Jingbiao , Lin Yuankun , Kaul Anupama B. , Watanabe Fumiya , Wangila Grant , Mortazavi Mansour , Yan Chao , Guo Zhanhu , Jiang Qinglong 
Published: August 2024

Abstract

Stability is the primary hindrance for the application of halide perovskite material in light emitting device, solar cell and other devices. In this work, halide perovskite and polymer composite film has been prepared for stable and bright light emitting devices. Pure-phase Cs4PbBr6 crystals have been synthesized, their photoluminescence (PL) properties and fluorescence lifetimes were investigated. The Cs4PbBr6 crystals exhibited high uniformity but underwent rapid photodegradation under light irradiation. To address this issue, we prepared bright light emitting devices using Cs4PbBr6 crystals and polyethylene oxide (PEO) as the emission layer. The aim was to improve the optical and physical properties of halide perovskites, such as photodegradation and stability. PEO, with its excellent film-forming ability, created a uniform and dense film on the halide perovskite surface, filling microscopic defects and providing a protective barrier. FTIR, morphology, and PL analyses confirmed the protective role of the halide perovskite and polymer composite film. The composite film light emitting devices demonstrated improved stability and higher PL brightness, with a peak brightness approaching 3×108 cd/m2, which was approximately 75% higher than the pure halide perovskite devices.
Green synthesis of boric acid modified bismuth based non-toxic perovskite quantum dots for highly sensitive detection of oxytetracycline
Authors: Liu Jiali , Li Chen , Zhang Shen , Wei Xiao , Gao Yue , Wang Fei , Yan Mengwei , Wang Jiaqi , Zhang Yuhui 
Published: August 2024

Abstract

In recent years, perovskite quantum dots (PQDs) have successfully attracted widespread attention due to their excellent optical properties. However, the instability and toxicity problems of perovskite quantum dots are the main obstacles limiting their applications. In this work, bismuth-based perovskite quantum dots were synthesized by a ligand-assisted reprecipitation method, based on which a novel boric acid-functionalized bismuth-based non-toxic perovskite quantum dots fluorescent sensor (Cs3Bi2Br9-APBA) that can be stabilized in the ethanol phase was prepared by a boron affinity technique, and a fluorescent sensor (Cs3Bi2Br9-APBA) based on the covalent binding interaction between Cs3Bi2Br9-APBA and oxytetracycline (OTC) was developed. A highly selective and sensitive method for the detection of OTC was developed to solve the problem of poor stability and toxicity of perovskite quantum dots application. Under the optimal conditions, the fluorescence intensity of the synthesized Cs3Bi2Br9-APBA quantum dots was linear with the concentration range of 0.1 ~ 18 µM OTC, and the detection limit can reach 0.0802 µM. The fluorescence detection mechanism was explored and analyzed by spectral overlap analysis, suppression efficiency study of observed and corrected fluorescence, and fluorescence lifetime decay curve fitting, the mechanism of OTC detection by Cs3Bi2Br9-APBA was identified as the inner filter effect (IFE). In addition, the sensor successfully realized the quantitative detection of trace OTC in the environment, and our study provides a new idea for the preparation of green perovskite materials with high stability and selectivity.
Estimation on Characteristic Strength Values of Unidirectional Engineered Bamboo Laminates and Cross-laminated Bamboo Panels
Authors: Wang Rui , Li Zhi , Wu Yao , Xia Mingkang , Wang Qian 
Published: August 2024

Abstract

Strength values of commercial-available thick-strip engineered bamboo boards with three batches of different standard thicknesses, 20, 30, and 40mm, used for glued laminated bamboo (glubam) structures, were obtained through tests. Experimental methods based on the geometrical characteristics of engineered bamboo panels are proposed in this research. The strength values of structural used engineered bamboo panels under various loading conditions were reported in terms of tension, compression, bending, and shear. The average stress-displacement curves of panels with different thicknesses are given and compared in this study. The k-sample Anderson-Darling (ADK) test was used to statistically analyze the thickness effect on the three batches of strength values, and test results indicated that three groups of data were drawn from different populations, the thickness has a significant effect on the material properties of bamboo panels. Based on the original test data obtained in this way, strength values and the corresponding coefficient of variance (COV) are calculated and compared. The probability plots of the strength values are given. The probability plots of the strength values indicate that the distribution of the strength values can be described as a normal distribution variable with a 75% level of accuracy. Based on such test information obtained through different small specimen numbers, ranging from 5 to 60, the characteristic strength values of the structure used bamboo panels are estimated according to the design-by-test approach. The compression performance and corresponding characteristic bearing capacity of cross-laminated-bamboo (CLB) based on the engineered bamboo boards are also studied in this research.
Does the thoracic fluid content reflect lung water and cardiac preload?
Authors: ROSALBA Daniela , SHI Rui , BRUSCAGNIN Chiara , LAI Christopher , FOUQUE Gaëlle , HAGRY Julien , VASCHETTO Rosanna , TEBOUL Jean-Louis , MONNET Xavier 
Published: August 2024

Abstract

Background: Whether the thoracic fluid content (TFC) estimated by bioimpedance actually reflects the thoracic water content and tracks its changes has not been tested yet. We compared TFC changes induced by volume expansion with those of well-established markers of cardiac preload including the global end-diastolic volume indexed (GEDVI) estimated by transpulmonary thermodilution (TPTD) and central venous pressure (CVP). We assessed the relationship between TFC and extravascular lung water indexed (EVLWI) estimated by TPTD in patients with acute respiratory distress syndrome (ARDS).
Methods: In 42 patients with a TPTD device (PiCCO2), we measured GEDVI, EVLWI and CVP before and after a 500-mL fluid bolus (Fluid group). In 23 patients with ARDS, we measured the day-to-day changes in TFC and EVLWI (ARDS group).
Results: In the Fluid group (42 measurements), TFC increased significantly during fluid infusion. There was no correlation between the fluid-induced changes in GEDVI or CVP and the fluid-induced changes in TFC (p=0.71 and p=0.09, respectively). In the ARDS group, 124 measurements were performed, representing 101 changes between timepoints. There was no correlation between the percent changes in GEDVI, EVLWI, the sum of GEDVI+EVLWI and the percent changes in TFC (p=0.52, 0.40 and 0.55, respectively). Considering all 208 pairs of measurements performed, there was no correlation between the absolute values of GEDVI, EVLWI and the sum of GEDVI+EVLWI and those of TFC (p=0.33, 0.04 and 0.39, respectively). Considering all pairs of measurements performed, the percentage of error of cardiac index measured by bioreactance compared to TPTD was 131%.
Conclusions: In critically ill patients, TFC measured by bioimpedance does not follow the changes induced by a fluid bolus of well-known markers of cardiac preload. It also does not follow the changes in EVLWI observed in patients with ARDS. It is determined neither by GEDVI, nor by EVLWI or the sum of the two.