bluuebunny/crossref_metadata_2025 huggingface dataset:
Management of paracondylar process fracture in three horses
Authors: Parkinson Nicholas , Beldeanu Sabina , Tay M. C. Aaron , Daniel Carola , Dosi Miranda , Hahn Caroline , James Oliver , Townsend Neil B. , Liuti Tiziana , Schwarz Tobias
Published: May 2024

Background: Fractures of the paracondylar process of the
occipital bone may cause headshaking, neck pain and neurologic deficits.
The condition is being recognized more frequently with increasing
availability of computed tomography. However, to date only limited
information is available as to presentation, treatment, surgical
approach and outcome. Objectives: To describe the clinical
signs, imaging findings, treatment, surgical approach and outcome in
three horses diagnosed with paracondylar process fracture. Study
Design: Retrospective case series. Methods: Clinical records
and diagnostic images of affected cases were reviewed, with informed
owner consent. Results: Two cases with ventral fractures
presented with neck pain and stiffness, one of which had a primary
complaint of poor performance while the other also displayed headshaking
and other behavioural changes. A third case with a more dorsal fracture
presented with acute facial nerve paralysis. Diagnosis was by computed
tomography in all cases. Conservative management resulted in improvement
in all cases with available follow-up, although mild residual neurologic
deficits remained in one. Repeated recurrence of clinical signs after
prolonged periods of remission necessitated surgical removal in one
case, which was readily accomplished with the aid of ultrasound
guidance, and led to rapid resolution of clinical signs without
significant post-operative complications. The surgical approach is
described. Main Limitations: Limited follow-up was available
for some cases. Conclusions: Paracondylar process fracture
should be considered as a differential diagnosis for headshaking, neck
pain, poor performance and facial paresis, and is a justification for
performing computed tomography in such cases. A multi-disciplinary
approach is beneficial due to the potential for orthopaedic, neurologic,
ophthalmologic and behavioural clinical signs, with additional need for
expertise in diagnostic imaging and pain management. Surgical fragment
removal should be considered in cases that do not respond adequately to
conservative management.
Gravel replenishment downstream dams: insights from a flume experiment on morphological effects in a straight embanked channel
Authors: Deng Junjian , Brousse Guillaume , Jodeau Magali
Published: May 2024

Alternate gravel bars usually appear in embanked gravel-bed river
channels regulated by dams, causing safety risks to hydraulic structures
and modifying fluvial ecology. Managing bars remains challenging and
crucial for a river restoration project. Gravel replenishment is one
measure to mitigate sediment deficits caused by dam regulation, while
its efficiency in embanked rivers with bar morphology remains still
unclear. We conducted a laboratory experiment to investigate the
morphological effects of single high-flow stockpile replenishment after
a flood event in a straight embanked channel characterized by steady
hybrid bars. Results showed that erosion of the stockpile and sediment
wave propagation mainly occurred during the high-flow period. The
stockpile was laterally more eroded when the upstream sediment supply
was maintained, while the sediment wave propagated further when the
sediment supply was eliminated. Topographic and flow velocity data
showed bar migration and suppression triggered by the forcing of the
implemented stockpile during high flows regardless of upstream sediment
supply during the flood. After the flood, bar morphology reappeared with
maintained upstream sediment supply, while a single-thread incised
channel was observed without the upstream supply. These observations
suggest that sediment replenishment, combined with different upstream
dam release manipulations, can strongly modify the initial bar
morphology of an embanked river the efficiency of which also depends on
upstream dam operations during high flows. This experiment also
benefited from a detailed data acquisition plan and analysis, providing
a dataset suitable for constructing and calibrating a 2D numerical
morphodynamic model for future sediment replenishment design.
AI-Based Digital Rocks Augmentation and Assessment Metrics
Authors: Liu Lei , Chang Bernard , Prodanović Maša , Pyrcz Michael J
Published: May 2024

Reliable uncertainty model calculation in subsurface engineering from
pore- and grain-scale to field-scale relies on sufficient data, but
subsurface dataset acquisition remains a challenge, particularly in
domains where data collection is expensive or time-consuming, such as
Computed Topography (CT) imaging for digital rock images. While AI-based
data augmentation may assist the model training, it still requires many
training images as well as the quality assessment of generated data.
Yet, most data quantitative metrics flatten spatial data into vectors;
therefore, removing the essential spatial relationships within the data.
We evaluate topology-based metrics for quality assessment of AI-based
image augmentation, coupled with digital rocks augmentation practice
using the Single image Generative Adversarial Network (SinGAN) for
binarized (segmented) images. Compared to most traditional
dimensionality reduction methods that process images into a flattened
vector, we propose topological image analysis for dimensionality
reduction while preserving the essential geometric and topological
features of the high-dimensional data. To demonstrate our proposed
approach, we evaluate the generated images starting from four distinct
digital rock samples, sorted sandstone, synthetic sphere pack,
limestone, and poorly sorted sandstone, using Minkowski functionals,
image graph network-based measures, graph Laplacian-based measures,
local trend maps, and a homogeneity-heterogeneity classifier. Our
workflow suggests that AI-based digital rock augmentation, combined with
topological dimensionality reduction offers a powerful tool for enhanced
quality assessment and diagnostic of digital rock augmentation and
improved interpretation to support decision-making.
Filtered Ensemble-based Tangent Linear Model for the Operational EnVar Data Assimilation System
Authors: Yokota Sho , Carley Jacob , Liu Shun , Thomas Catherine , Kleist Daryl T.
Published: May 2024

The ensemble-based tangent linear model (ETLM), which evolves the static
background error covariance (BEC) in time in the data assimilation
window, is beneficial for improving the analysis and avoids the need for
developing the tangent linear forecast model and its adjoint as in
four-dimensional variational data assimilation (4DVar). This study
proposes to apply the filtered ETLM (FETLM), which is composed of
ensemble perturbations at limited time slots and localized with a
quasi-Gaussian filter in the way that avoids calculation of the inverse
matrix. Tests with the Lorenz (1996) model showed that FETLM evolved the
static BEC as in 4DVar and improved the analysis. In experiments with
the FETLM implemented in the hourly-updated regional forecast system,
the Rapid Refresh Forecast System, the imbalance of the analysis was
mitigated due to the flow-dependent BEC. Moreover, the cross-variable
covariance in the FETLM made it possible to assimilate radar
reflectivity effectively even without hydrometeors as control variables.
Enhancing microwave oven performance and transformer quality through efficient high voltage transformer cooling
Authors: Outzguinrimt Hamid , Lahame Mouhcine , Bahani Boubker , Chrayagne Mohammed
Published: May 2024

This paper describes a method and device for effectively cooling a high voltage transformer inside a microwave oven, with the aim of swiftly removing heat generated during operation, hence improving both the microwave oven?s and the transformer?s performance and quality. The device incorporates corrugated tank surfaces, electrical connection-lines with protrusions, and epoxy to prevent cooling oil leakage. The transformer is inserted into a designated tank and sealed to separate the coil and core from the outside environment, allowing for better cooling and protection against electrical shock. Additionally, an oil is injected to absorb heat generated by the high temperature of the core and coil. The effectiveness of this method is validated through the finite element method and CFD techniques. Numerical analysis revealed a significant decrease in the maximum temperature rise of the transformer by around 44.2?C. This finding suggests that transformer oil cooling is a more effective method for controlling temperature rise in microwave ovens compared to traditional cooling methods.
Improving standard volar plate fixation in 3D-guided corrective osteotomy of the distal radius: evaluation of a shim instrument
Authors: Gryska Emilia , Libberecht Katleen , Stor Swinkels Charlotte , Axelsson Peter , Fredrikson Per , Björkman Anders
Published: May 2024

Standard volar plates often do not fit the surface of the malunited distal radius after osteotomy, necessitating an offset angle for accurate volar tilt correction. The correction can be achieved if the plate is held at the correct angle when the distal screws are locked. With the advantage of 3D surgical planning and patient-specific instruments, we developed a shim instrument to assist the surgeon in securing the plate at the intended angle when locking the distal screws, and evaluated radiological results. Five female patients aged 63–74 with dorsally angulated extra-articular malunions underwent surgery using 3D-printed guides and the shim instrument. The plate position, drilling guide alignment, screw placements, and distal radius correction on postoperative CTs were compared with the surgical plans. Errors were measured using an anatomical coordinate system, and standard 2D radiographic measures were extracted. Preoperative dorsal tilt ranged from 16° to 35°, and postoperative volar tilt from 1° to 11°. 3D analysis revealed mean absolute correction errors of 6.1° in volar tilt, 1.6° in radial inclination, and 0.6 mm in ulnar variance. The volar tilt error due to the shim instrument, indicated by the mean angle error of the distal screws to the plate, was 2.1° but varied across the five patients. Settling of the distal radius, due to tension during and after reduction, further contributed to a mean loss of 3.5° in volar tilt. The shim instrument helped with securing plates at the intended angle; however, further correction improvements should consider the tension between the fragments of osteoporotic bone.
Ablative laser propulsion, the propellants and measuring parameters: A brief review
Authors: Abbas Ayesha , Iqbal Syeda Tehreem , Jamil Yasir
Published: May 2024

Keeping in view the weightage of electric propulsion over chemical propulsion, materials from metals to polymers and liquid (water) have been tested as propellants in ablative laser propulsion. This emerging propulsion technique can be widely used for aerospace applications like debris removal in the range of cm, pointing micro and nano satellites, laser micro thrusters for spacecraft attitude, and orbit control. Laser propulsion can become a less expensive alternative to chemical propulsion. In this review, we compile the work done in ablative laser propulsion and different modes of propulsion along with the efficiency of different propellants. We summarize the optimized propulsive parameters with solid propellants and liquid propellants along with the efficiencies and theories of laser thrusters with optimized specific impulses. The article provides precise developments done in the field of ablative laser propulsion and deep insights into the analysis done between the different propellants used recently in ablative laser propulsion.
Elemental and Micromorphological Analysis of Ion Releasing Restorative Materials Subsequent to Finishing and Polishing Procedures: In Vitro Study
Authors: HA* Soliman
Published: May 2024

Purpose: The purpose of this study was to evaluate the surface morphology and composition of of two ion-releasing materials) submitted to finishing and polishing (F/P). Methodology: Disc-shaped specimens (10 mm × 2 mm) were made from both ion-releasing materials restorative materials Giomer (Beautifil II, Shofu Inc.), and Alkasite based material (Cention N, Ivoclar Vivadent, Schaan, Lichtenstein) submitted to F/P with [Super-Snap X-Treme Technique Kit, Shofu Inc. and Astropol, Ivoclar Vivadent, Schaan, Lichtenstein)]. Filler particles morphology and composition were examined by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX), respectively. Data were analysed by one-way analysis of variance and Tukey’s test (α = 0.05). Results: The smoothest surfaces were obtained for the control (unfinished) subgroups of all specimens. Regarding to F/P groups, Giomer specimens presented a relatively smooth surface after F/P with Super-Snap X-Treme Technique Kit. The EDX spectra showed no elemental transference from F/P tool to material surface by F/P procedures. Conclusion: The effect of F/P systems on surface roughness was dependent on the particle type and size of both F/P system and resin based restorative material.
The Development of Student Soft Skills through the Integration of PJBL STEAM Learning in The Organic Chemistry 1 Topic of Hydrocarbons
Authors: Handayani Dewi , Nurhamidah Nurhamidah
Published: May 2024

This research aims to improve students' soft skills in facing the 21st century, making learning more interesting and enjoyable so that the quality of human resources becomes better. This study explores how integrating Project-Based Learning (PjBL) with the STEAM (Science, Technology, Engineering, Art, and Mathematics) approach can improve students' soft skills in Organic Chemistry 1, specifically focusing on the topic of hydrocarbons. The research subjects were students taking Organic Chemistry 1 courses in the odd semester of the 2022/2023 academic year. This type of research is qualitative research with data collection techniques in the form of interviews, field observations, and reflective journals. The STEAM approach, encompassing Science, Technology, Engineering, Art, and Mathematics, is implemented through a six-stage learning process, namely providing essential questions, making a project plan, preparing a project schedule, monitoring students and project progress, assessing/testing results, and providing student experience. The research results show that students like project learning using the STEAM approach with an average questionnaire response result of 89.14% with very good criteria. 36% of students experienced problems when making project planning assignments in finding interesting ideas related to organic chemistry 1 material using the STEAM approach. The integration of STEAM in project-based learning can develop students' soft skills.
Development of E-Worksheet Based on Flipped-Guided Inquiry Learning (FGIL) in Thermochemistry for Phase F
Authors: Defista Chesa , Aznam Nurfina
Published: May 2024

Thermochemistry has abstract and mathematical material which makes it difficult for students to understand this material. Students are required to discuss this material in depth so teaching materials are needed that support student learning flexibly. Thus, the research purpose is to develop a thermochemistry e-worksheet based on FGIL for high school students in phase F. The research type is R&D with the ADDIE model which is limited to the Development stage. Content validity was carried out with four validators and practicality was obtained from 36 phases F high school students. The research instruments were validation sheets and student response questionnaires. The validity value is determined by Aiken's V test, if the V value is > 0.40 then an aspect is declared valid. The research findings demonstrated that the average assessment on the material aspect was 0.92 (very valid); the media aspect 0.96 (very valid); and the language aspect was 0.83 (very valid), while the average percentage of student responses was 96% (very practical). So, it can be said that the developed thermochemistry e-worksheet based on FGIL is valid and practical to use.
Transformando el aprendizaje de Metodología de Investigación: una revisión sistemática de gamificación y otras estrategias de aprendizaje
Authors: González Calleros Claudia Blanca , Torres Gastelú Carlos Arturo
Published: May 2024

La Metodología de Investigación es una asignatura importante, aunque desafiante para muchos estudiantes universitarios. Por tanto, en esta investigación se realizó una revisión sistemática de la literatura de los últimos cinco años que sirvió para seleccionar veintiséis estudios que cumplían con los criterios establecidos de calidad metodológica y práctica. Esta revisión evidenció una percepción generalizada negativa hacia esta materia. De hecho, a pesar de su relevancia, parece que la enseñanza en este ámbito aún no ha alcanzado la efectividad deseada. No obstante, se observa un enfoque prometedor con la implementación de estrategias de aprendizaje activo, como la gamificación, las clases invertidas y el aprendizaje colaborativo, las cuales buscan hacer que dicho proceso resulte más atractivo y participativo. El estudio, por ende, subraya la importancia de proporcionar una formación integral que abarque aspectos tecnológicos, pedagógicos y curriculares. Además, destaca la necesidad de reformar las políticas institucionales para fomentar una sólida competencia en investigación. Por último, se plantea la necesidad de una transformación completa en la manera de abordar la enseñanza de la metodología de investigación, incorporando la gamificación y estrategias didácticas con el fin de mejorar la calidad del proceso de aprendizaje.
Evaluación de propiedades fisicoquímicas de composta como producto de un dispositivo inteligente de degradación biológica
Authors: Garcia Dávila Jorge , Santacruz Juárez Ericka , Sánchez Minutti Lilia , Ortega Sánchez Eric , Tellez Girón Jabel Dinorín
Published: May 2024

Uno de los desafíos que debe enfrentar la sociedad actual tiene que ver con la acumulación, gestión, tratamiento y disposición final de desechos orgánicos e inorgánicos. Por eso, en el panorama contemporáneo se requiere de la implementación de técnicas destinadas a mitigar esta problemática con el fin de promover la mejora del entorno ambiental. En cuanto al tratamiento de residuos de origen orgánico, se pueden mencionar estrategias como el proceso de compostaje, un método que propicia la transformación de la materia orgánica mediante la descomposición aeróbica, lo cual genera un producto final estabilizado. Este producto, al ser integrado al suelo, enriquece sus propiedades físicas y químicas, las cuales pueden haberse visto mermadas debido a actividades agrícolas. Explicado lo anterior, el objetivo del presente estudio fue evaluar la calidad de los productos resultantes del compostaje (composta y lixiviados) obtenidos en el seno de un prototipo de compostero, el cual se nutre de desechos orgánicos provenientes de la cocina, así como de componentes orgánicos ligeros. Además, se vale de un coadyuvante microbiano y procesos mecánicos para reducir el tiempo de compostaje hasta en 600 % en comparación con los métodos convencionales, sin menoscabo de la calidad del producto final, según los parámetros de calidad vigentes. En conclusión, los resultados evidencian que el abono orgánico obtenido mediante este procedimiento presenta una humedad del 73 %, ligeramente superior a la estipulada, y carece de una concentración elevada de metales pesados que supere los límites permitidos. Además, se confirma que la relación C/N alcanza un valor de 6.5, lo cual lo convierte en un aditivo orgánico idóneo para mejorar las condiciones de los suelos agrícolas.
The Dehumanising Mood in Early Nigerian Creative Writing: A Hallmark of Modern Literature
Authors: Orkusa Ayila
Published: May 2024

The early Nigerian creative writings are recognised as modern literature not simply for the time of their production but among other prevailing characteristics is the recurring mood. Several of Nigerian literatureis laced with the dehumanising mood and a systematic reading of certain works here has not proved the contrary.In this paper we follow a synchronic study of mood on some selected works to substantiate this hypothesis (that there is dominant dehumanising mood) in certain texts of Nigerian literature. Narratives in the texts under study capture timehues of Nigerian cultures and circumnavigate around issues that create dehumanising mood. However, dehumanising feeling itself is one of the major quirks of modernism. This work therefore discusses how the texts consistently narrate oppositions and hostilities that sustain dehumanising mood through narrators and some characters who speak for themselves. Although the texts bequeath a fecund legacy of cultural assertion that later corresponds to the global avowal of black dignity/integrity – negritude, dehumanising mood remains constant and marks those works out as modern literature. Thus, attention will be given to some works of Elechi Amadi’sThe Great Pond, The Slave and Flora Nwapa’s Efuru.The argument is sustained under these sections: modernism/modern literature;source of dehumanising mood in the The Great Pond, The Slave and Efuru; stigmatisation and rejection of conventional truth; and the conclusion.
Ocena atrakcyjności inwestycji w akcje spółek giełdowych
Authors: Nowotnik Karolina
Published: May 2024

W artykule omówiono problematykę oceny atrakcyjności inwestowania w akcje spółek giełdowych. Przedstawiono charakterystykę wybranych spółek sektora żywności. Została dokonana analiza wskaźnikowa jako narzędzie analizy fundamentalnej 10 wybranych przedsiębiorstw, analiza rynkowa z uwzględnieniem ryzyka oraz ocena za pomocą taksonomicznej miary atrakcyjności inwestowania. Analiza ta została przeprowadzona na podstawie sprawozdań finansowych spółek w roku 2018.
Wpływ pandemii COVID-19 na gospodarkę polską we wczesnej fazie kryzysu
Authors: Sobczyk Nina , Sobczyk Nina
Published: May 2024

Pandemia COVID-19 zakłóciła funkcjonowanie wielu gospodarek. Wywołała zarówno szok podażowy jak i popytowy, co spowodowało powstanie kryzysu gospodarczego. Dlatego też UE skupiła się na problemach gospodarczych swego ugrupowania i rozpoczęła politykę przeciwdziałania gospodarczym skutkom pandemii. Celem artykułu jest zbadanie wpływu pandemii na funkcjonowanie gospodarki polskiej ze szczególnym uwzględnieniem branży transportowej. Gospodarki wszystkich krajów Unii Europejskiej odnotowały wzrost bezrobocia, inflacji, spadek PKB i ograniczenie handlu międzynarodowego. W gospodarce polskiej także nastąpiło pogorszenie warunków funkcjonowania przedsiębiorstw między innymi w branży transportowej.
Understanding the Dynamics of Unemployment and Poverty in the Tomini Bay Area
Authors: Dai Sri Indriyani S. , Hasan Sherina , Setiawan Widy
Published: May 2024

This study aims to analyze the effect of education level, gini ratio and labor force participation rate on unemployment, as well as the effect of unemployment on poverty in the Tomini Bay region. The data used in the study is secondary data in the form of 10 regencies/cities in the Tomini Bay area, for the 2018-2022 period, sourced from the Indonesian Central Bureau of Statistics. The novelty of this study is trying to trace the relationship between educational and economic aspects to the phenomenon of poverty in the Tomini Bay Region, as a regional economic power. The future impact of this study is the mapping of the actual condition of poverty and the availability of more evidence-based policy recommendations in reducing unemployment and poverty in the Tomini Bay Area.  This study used descriptive quantitative methods. With an approach (Simultaneous equation regression model) using the Indirect Least Square (ILS) regression technique with Fixed Effect Model (FEM). The results of  this study show that the level of education and the labor force participation rate have a negative and significant effect on unemployment. In contrast to the Gini ratio which actually has a positive and significant effect on unemployment. On the other hand, unemployment shows a positive and significant influence on poverty. The implication of the research is the need for a truly massive policy to strengthen the education dimension, to accelerate the increase in human capital and the importance of a sustainable program to increase employment opportunities from the government so as to reduce unemployment and poverty.
İLKOKUL ÖĞRENCİLERİNİN ÇARPMA İŞLEMİ ÖZ-YETERLİK DÜZEYLERİNİN İNCELENMESİ
Authors: Yontürk Selin , Yılmaz Ferat
Published: May 2024

Bu araştırmada, çarpma işlemi konusuna özgü bir öz yeterlilik ölçeği geliştirilerek ilkokul öğrencilerinin çarpma işlemi öz-yeterlik düzeylerinin çeşitli değişkenler açısından incelenmesi amaçlanmıştır. Araştırma, nicel araştırma yöntemlerinden tarama ve nedensel karşılaştırma modelleri ile yürütülmüştür. Araştırmaya, Diyarbakır ilinin dört merkez ilçesinde bulunan toplam 747 ilkokul 4.sınıf öğrencisi katılmıştır. Araştırmanın verileri, Kişisel Bilgi Formu (KBF) ve araştırmacılar tarafından geliştirilen İlkokul Öğrencileri İçin Çarpma İşlemi Öz-Yeterlik Ölçeği (ÇİÖÖ) ile toplanmıştır. Elde edilen verilerin analizinde, Tek Yönlü Varyans Analizi ve Bağımsız Gruplar için t testi kullanılmıştır. Araştırma sonuçları, ilkokul öğrencilerinin çarpma işlemi öz-yeterlilik düzeylerinin güç boyutunda orta, büyüklük boyutu, genellik boyutu ve toplam puan açısından yüksek olduğunu göstermiştir. Bununla birlikte, ilkokul öğrencilerinin çarpma işlemi öz-yeterlilik düzeylerinin değişkenler açısından çeşitli boyutlarda anlamlı farklılık gösterdiği sonucuna ulaşılmıştır.
LİDERLIK STİLLERİ İLE PSİKOLOJİK DAYANIKLILIK VE PSİKOLOJİK İYI OLUŞ ARASINDAKI İLİŞKİNİN İNCELENMESİ
Authors: Yalçın Elif , Yalçın Sinan , Köroğlu Mustafa
Published: May 2024

Araştırmada liderlik stilleri ile öğretmenlerin psikolojik iyi oluş ve psikolojik dayanıklılıkları arasındaki ilişki incelenmiştir. Araştırmada nicel desende ve ilişkisel tarama modelinde tasarlanmıştır. Araştırmanın örneklemini 2022-2023 yılında Mersin İl Milli Eğitim Müdürlüğünde görev yapan tesadüfi örnekleme yöntemi ile seçilen 344 öğretmen oluşturmuştur. Araştırma verileri betimsel istatistikler, t testi, ANOVA, korelasyon analizi ve regresyon analizi ile analiz edilmiştir. Araştırmadan elde edilen sonuçlara göre, öğretmenler okul yöneticilerinin daha çok demokratik lider olarak görmektedirler. Araştırma sonuçlarına göre öğretmenlerin psikolojik sağlamlık düzeyleri orta, psikolojik iyi oluş düzeyleri ise yüksek düzeyde çıkmıştır. Araştırma sonuçlarına göre öğretmenlerin cinsiyet değişkenine göre demokratik liderlik, psikolojik iyi oluş ve psikolojik sağlamlığa ilişkin görüşleri farklılaşmaktadır. Görev yapılan okul kademesine göre ise psikolojik iyi oluşa ilişkin algıları anlamlı bir farklılık göstermektedir. Araştırma sonuçlarına göre demokratik liderlik ile psikolojik iyi oluş ve psikolojik sağlamlık arasında pozitif yönde düşük düzeyde anlamlı bir ilişki olduğu sonucuna ulaşılmıştır. Ayrıca psikolojik iyi oluş ile psikolojik sağlamlık arasında orta düzeyde pozitif yönlü anlamlı bir ilişki söz konusudur. Araştırma sonuçlarına göre öğretmenlerin psikolojik iyi oluş ve psikolojik sağlamlıkları üzerinde sadece demokratik liderliğin anlamlı bir yordayıcı olduğu sonucuna ulaşılmıştır.
Trzy pokolenia w dwie dekady – polscy migranci
Authors: Lesińska Magdalena , Pszczółkowska Dominika
Published: May 2024

Prawie 20 lat po wejściu Polski do Unii Europejskiej Polacy nadal emigrują. Jest to już jednak inna migracja niż ta, którą obserwowaliśmy po 1 maja 2004 roku.
Ogromna siła nanocząstek
Authors: Paczesny Jan , Osial Magdalena
Published: May 2024

Srebro i herbata w skali nano mogą niszczyć mikroorganizmy oporne na leczenie.
Satelitarne spojrzenie na Bałtyk
Authors: Ostrowska Mirosława
Published: May 2024

Ozjawiskach zachodzących w morzach i oceanach oraz wykorzystaniu satelitów do badania tych zjawisk opowiada dr hab. Mirosława Ostrowska, prof. IO PAN, wiceprezeska PAN.
Człowiek umrze, statki ostaną...
Authors: Radomski Mikołaj
Published: May 2024

To zwięzła odpowiedź udzielona przez Mieczysława Waszczuka z Áurea na pytanie, dlaczego w jego miasteczku utworzono muzeum. A „statki” to nic innego jak naczynia do zmywania i jednocześnie przykład archaizmu charakterystycznego dla polszczyzny, którą posługuje się spora grupa potomków polskich emigrantów w Brazylii.
RANCANGAN TAMPILAN HOLOGRAFIK MUSEUM MENGGUNAKAN TEKNOLOGI 3D HOLOGRAM : STUDI KASUS PEMBANGUNAN IKN TAHAP I
Authors: Yendra Sasferi , Ngabito Olivia Febrianty , M Fulkha Tajri
Published: May 2024

Hasil dari penelitian ini salah satu bentuk Teknik interaksi yang menjadi alat penting dalam desain pameran untuk meningkatkan partisipasi pengunjung melalui visual yang menarik. Target khusus ialah hadirnya display system menggunakan alat 3D holografik LED dengan sudut pandang 360 derajat,.  untuk virtual artefak 3D dikemas dengan menggunakan metode kipas LED hologram yang dapat menvisualisasikan sebuah produk atau material melalui rotasi cahaya lampu LED, yang dihasilkan dari kumpulan kisi cahaya dan melalui proses di sebuah software (Perangkat Lunak) yang dapat di akses PC maupun iOS, serta terkoneksi langsung pada kipas LED dengan teknologi wifi. Melelui software ini, pengguna dapat menampilkan konten yang akan ditampilkan pada alat hologram. Setiap LED pada setiap sisi kipas akan segera membuat kisi cahaya sesuai dengan konten yang di unggah. Kemudian, setiap titik- titik dari kisi tersebut berubah menjadi video/ gambar yang terlihat melalui rotasi LED, sehingga terlihat efek holografik di udara. Setiap materi atau konten kreatif yang akan diputar, disimpan di ruang penyimpanan alat melalui jalur dan metode tranmisi yang berbeda-beda. Museum selayaknya menjadi ruang yang interaktif dan muncul dalam berbagai aliran dengan menggabungkan karya seni collaborasi dengan digital adalah masalah yang patut dipertimbangkan saat ini.
VIDEO ANIMASI PEMBUATAN KAIN PERCA UNTUK TUNA WICARA DENGAN TEKNIK SINGLE SHOT MEDIUM CLOSE UP
Authors: Kabelen Nicholaus Wayong
Published: May 2024

Bahasa isyarat merupakan alat terpenting bagi  penyandang disabilitas pendengaran dan bicara untuk berkomunikasi dengan orang di sekitarnya. Namun keberadaan bahasa isyarat kurang dipahami oleh masyarakat umum sehingga seringkali membatasi kebebasan bergerak para penyandang tunarungu dan tuna wicara. Anda memerlukan pendamping yang mampu menerjemahkan informasi di sekitar Anda, seperti  ahli bahasa isyarat. Diperlukan inovasi-inovasi baru, khususnya di bidang teknologi, untuk membantu penyandang disabilitas pendengaran dan bicara berkomunikasi lebih nyaman dengan lingkungan sekitarnya. Secara khusus, penelitian ini memperkenalkan konsep pembuatan video animasi dalam bahasa isyarat, yang mengubah gerakan tubuh para  ahli menjadi  animasi 3D. Dalam ilmu videografi berbagai macam angle serta sudut pengembilan angle sangat diperlukan, namun seorang animator harus bisa menganalisa serta menentukan shot apa saja yang paling efektif dalam penerapann Bahasa isyarat agar menciptakan pergerakan animasi yang bisa diterima runa wicara.
Studi Keindahan Karya Arsitektur (Studi Kasus Terhadap Arsitektur Rumoh Aceh dan Museum Tsunami Aceh)
Authors: Azzahra Fatimah , Sahriyadi Sahriyadi
Published: May 2024

Ada dua mahakarya arsitektur di Aceh yakni, Rumoh Aceh dan Museum Tsunami Aceh. Rumoh Aceh keberadaannya mulai sulit ditemukan dan Museum Tsunami keberadannya semakin eksis. Muncul keinginan untuk memperjelas kedua karya tersebut dari sisi keindahan arsitektur yang  bertujuan sebagai identifikasi unsur keindahan bentuk dan ekspresi.Rumusan permasalahan adalah identifikasi keindahan bentuk dan keindahan ekspresi terhadap kedua bangunan yang bertujuan menemu-kenali dan menambah wawasan arsitektur sebagai wacana preservasi dan konservasi bangunan heritage. Penelitian ini menggunakan jenis penelitian kualitatif studi kasus dengan teknik analisis deskriptif.Hasil penelitian pada unsur keindahan bentuk kedua bangunan pada dasarnya sama yakni setiap unsur tersebut ditemukan. Namun, yang membedakan adalah konsep dan jenis bangunan tersebut seperti; histori, fungsi, bentuk, dan dimensi sehingga dalam hal ini kedua bangunan mempunyai nilai lebih dan kurang. Secara visual Museum Tsunami tampak indah dengan architecture combined metaphor-nya dan Rumoh Aceh tampak unik dan menarik dengan segala makna pada setiap elemen arsitekturnya. Pada keindahan ekspresi sangat jelas bahwa Museum Tsunami mampu mengekspresikan kondisi bencana gempa bumi dan tsunami dengan analogi metapora pada wujud bangunan sehingga terkesan sangat menarik sedangkan Rumoh Aceh dengan nuansa alaminya belum mampu memberikan keindahan ekspresi yang terlalu jauh.Diharapkan hasil penelitian ini bukan sebagai wacana justifikasi atau bahkan membandingkan kedua mahakarya tersebut. Tetapi harapan utama dalam penelitian ini adalah sebagai wadah pemahaman ilmu arsitektur berkelanjutan. Ada pribahasa “tak kenal maka tak sayang” yang dalam konteks ini adalah memberikan hal terkecil dalam pemahaman dan pengetahuan khususnya Arsitektur Tradisional Aceh agar mampu bertahan dalam himpitan karya – karya besar arsitektur pasca modern.
PREFERENSI MASYARAKAT TERHADAP KARAKTERISTIK HUNIAN PERTAMA
Authors: Pali Richard Elisa Fernando , Nurdini Allis
Published: May 2024

ABSTRAK. Hunian memiliki peran penting bagi manusia. Fungsi hunian yang terus berkembang sejalan dengan zaman membuat hunian bukan hanya sebagai tempat bernaung dan tempat berlindung. Namun, dalam menentukan hunian yang sesuai dengan keinginan merupakan hal yang tidak mudah karena banyak faktor yang perlu dipertimbangkan. Anggaran yang dikeluarkan oleh seseorang untuk memiliki hunian tidak sedikit. Perbedaan pengalaman antara masyarakat yang baru ingin memiliki hunian pertama kali dengan masyarakat yang telah memiliki hunian sebelumnya, mempengaruhi preferensi. Tujuan dari penelitian ini adalah untuk mengetahui preferensi masyarakat terhadap karakteristik hunian yang ingin dimiliki pertama kali, sehingga dapat membantu memudahkan masyarakat yang kurang pengalaman dalam memilih hunian agar sesuai dengan kriteria yang diinginkan. Penelitian ini juga diharapkan dapat menjadi wawasan baru untuk perencanaan hunian bagi pengembang perumahan maupun real estate. Penelitian ini menggunakan pendekatan kualitatif. Data dikumpulkan melalui kuesioner daring yang berisi pertanyaan terbuka yang dibagikan melalui media sosial. Data teks yang terkumpul dianalisis dengan analisis isi. Dari penelitian tersebut ditemukan empat aspek yang menjadi preferensi masyarakat dalam menentukan pilihan terhadap karakter hunian yang ingin dimiliki pertama kali yaitu desain, konfigurasi ruang, ramah lingkungan serta keamanan & kenyamanan. Kata kunci: preferensi, karakteristik hunian, hunian pertama ABSTRACT. Housing has an essential role for humans. The function of housing that continues to develop in line with the times has made housing not only a place of shelter. However, determining the right place to live is difficult because many factors need to be considered. The budget spent by someone to own a residence is large. Differences in experience between people who want to have a home for the first time and people who have had a place before affect preferences. This research aims to find people’s priorities for the characteristics of the dwelling they want to own for the first time to help make it easier for people with less experience to choose a house to match the desired criteria. This research is also expected to be a new insight into residential planning for housing developers and real estate. This research uses a qualitative approach. Data was collected through an online questionnaire containing open-ended questions shared via social media. The text data collected were analyzed using content analysis. This research found four aspects that become public preferences in determining the choice of the residential character they want to have for the first time: design, space configuration, environmental friendliness, and safety & comfort. Keywords: preferences, house characteristics, first house
Hayao Miyazaki’s Pastoral Nostalgia:
Authors: Egger Abigail
Published: May 2024

In the post-war years, rapid industrialization in the name of economic recovery resulted in several Japanese environmental crises. A number of these crises were high profile and reported by new agencies and environmental activists on a national and international level. As a result, Japanese culture and media has been influenced by images of pollutions' effect on the body and developed into robust Japanese environmental movements and policies. This essay builds on the environmental analysis of Hayao Miyazaki's films, but offers a counter perspective arguing that the body horror of Princess Mononoke and Spirited Away is more representative of Japanese pastoral nostalgia (which suggests a feeling of cultural loss and a rejection of a possible return human-nature harmony) rather than pure environmentalism.
Sistem Rekomendasi Pembelian Smartphone berbasis Algoritma K-Means dan Singular Value Decomposition
Authors: Zuhdiansyah Ivan , Luthfiarta Ardytha
Published: May 2024

Perkembangan teknologi informasi yang pesat, memberi dampak pada ketesedian informasi yang berlimpah. Hal ini menjadikan suatu masalah yang disebut kelebihan informasi, menyebabkan pengguna internet sulit memahami dan membuat keptusan. E-commerce merupakan salah satu yang terdampak dari kelebihan informasi, dengan banyaknya produk dan pengguna baik dari penjual maupun pembeli yang ada. Sistem rekomendasi adalah bagian penting dari e-commerce yang menjadi salah satu cara menangani kelebihan informasi, dengan memberikan rekomendasi produk kepada pembeli agar membantu menentukan pilihan. Dalam sistem rekomendasi memiliki permasalahan scalability, dimana banyaknya produk yang tersedia membuatnya menjadi tidak efektif dan efisien dalam memberikan rekomendasi kepada pembeli. Maka, penelitian ini mengusulkan metode sistem rekomendasi yang dikombinasikan teknik clustering. Menggunakan algoritma K-Means untuk mengelompokkan produk, kemudian algoritma Singular Value Decomposition (SVD) untuk membuat rekomendasi di dalam cluster yang terbentuk. Hasil keluaran model yaitu, rekomendasi produk dan prediksi rating yang diberikan pembeli dari produk yang direkomendasikan. Evaluasi model mendapatkan nilai dbi sebesar 0,703 untuk clustering, nilai rata-rata terbaik MAE 0.8150 dan RMSE 1.1781 untuk rekomendasi yang dihasilkan. Kesimpulan yang didapat bahwa metode ini dapat menangani masalah scalability dan memberikan rekomendasi yang akurat dengan nilai evaluasi yang lebih baik dibandingkan penelitian sebelumnya.
REVIEW OF TOP ENERGY TRANSITION INNOVATORS IMPACTING RENEWABLE ENERGY DEVELOPMENT
Authors:   Chernihiv Polytechnic National University, Hlushko Oleksandr , Lysenko Nataliia ,   Chernihiv Polytechnic National University, Novyk Kateryna ,   Chernihiv Polytechnic National University, Stala Robert ,   AGH University of Krakow, Waradzyn Zbigniew ,   AGH University of Krakow, Stepenko Serhii ,   Chernihiv Polytechnic National University
Published: May 2024

The list of TOP 100 energy transition innovators draws on Reuters Events’ expertise as the world’s leading provider of cleantech events. The main purpose of this review is to analyze the presented innovators and their main contributions towards energy transition as well as to emphasize those cases which are specifically dedicated to the renewable energy development, including solar systems, components and appropriate services. The main emerging trends shown and discussed in the review include Digital solutions, Decarbonization, Wind power, Just transition, Collaboration and partnerships, Hydrogen, Carbon capture, Novel technology, Green finance and Energy storage
Enhanced Randomized Harris Hawk Optimization of PI controller for power flow control in the microgrid with the PV-wind-battery system
Authors: Pavan Gollapudi , Ramesh Babu A.
Published: May 2024

Microgrids, characterized by their ability to work individually or in combination with the main power system, play a pivotal role in addressing the growing demand for reliable and sustainable energy solutions. This work concentrates on the integration of sustainable energy sources, specifically photovoltaic (PV), and wind generation and a battery storage system within a microgrid framework. Additionally, a power flow control strategy is implemented to enhance the dynamic behaviour and stability of the microgrid. The proportional-integral (PI) controller is a fundamental component in regulating the microgrid’s power flow, ensuring optimal performance under varying operating conditions. However, tuning the PI controller parameters is a difficult task because of the dynamic and nonlinear nature of renewable energy sources. In this work, the application of the Enhanced Randomized Harris Hawk Optimization (ERHHO) to fine-tune the PI controller is proposed, using the algorithm’s ability to mimic the hunting behaviour of hawks in finding optimal solutions. The PV-Wind-Battery microgrid system is modelled, and the proposed algorithm is employed to optimize the PI controller parameters for efficient energy management. The ERHHO algorithm’s exploration-exploitation balance is harnessed to navigate the complex solution space and converge to optimal PI controller settings, thereby enhancing the microgrid’s stability and performance. The study evaluates the effectiveness of the proposed ERHHO-based PI controller tuning through comprehensive simulations. Performance metrics such as transient response, overshoot, settling time, and steady-state error are analysed to validate the robustness and efficiency of the proposed method. Compared to its nearest optimization algorithm, with the proposed algorithm rise time is reduced by 50%, overshoot is reduced by 75%, settling time is reduced by 66%, and finally, a percentage of reduction of steady-state error is 45%. The outcomes of this research contribute to the advancement of microgrid control strategies, offering a novel approach to PI controller tuning in the context of diverse renewable energy sources. The integration of the Harris Hawk Optimization algorithm provides a promising avenue for enhancing the operational efficiency and reliability of microgrids, paving the way for sustainable and resilient energy systems in the aspect of growing energy landscapes.
STUDENTS' CREATIVE THINKING ABILITY PROFILE IN MATHEMATICS LESSONS OF RIAU PROVINCE
Authors: Fadilla Jihan , Ainirohmah Nailu , Marwaziah Nirmala , Hafizah Nur , Hayu Sri Rah , Andrian Dedek
Published: May 2024

This study aims to describe students' creative thinking skills in mathematics. The type of research used in this research is descriptive research. The population in this study were junior high school level students in Bengkalis Regency, Riau while the sample was 59 students in the Bathin Solapan District and 50 students from the Bandar Laksamana sub-district. The sampling technique in this study was simple random sampling. The data collection technique in this study was a survey using a questionnaire instrument. Before the instrument is used, the instrument in the form of a questionnaire is validated in terms of content and construct. In terms of content, validity analysis uses the Aiken formula and CFA First Order, while construct validity uses CFA Second Order. Data analysis in this study used descriptive statistics. The results obtained from the analysis of students' creative thinking abilities in mathematics at the junior high school level show that the indicators of Elaboration, Flexibility, Originality, and Fluency in students' creative thinking abilities, obtain a good category percentage of 22.02% and a bad category of 77.98% .
IMPROVING MATHEMATICS LEARNING OUTCOMES THROUGH THE IMPLEMENTATION OF PROBLEM-BASED LEARNING APPROACH IN SDN 147 PEKANBARU
Authors: Fajar Hamzah
Published: May 2024

Students' low interest in learning creates challenges in the learning process, where a lack of motivation can hinder understanding of the material and reduce students' active participation in teaching and learning activities. Therefore, it is essential to identify strategies that can increase students' interest in learning so that they are more involved and enthusiastic in participating in learning. This research aims to overcome the low learning outcomes of the Theme 1 Subtheme "My Daily Tasks at School" by applying the PBL (Problem-Based Learning) learning model in class II at SDN 147 Pekanbaru. The research method used is Classroom Action Research with four main stages: planning, action implementation, observation, and reflection, carried out in 2 cycles, each consisting of 2 meetings. Data collection techniques include observation, tests, documentation, and quantitative and qualitative data processing. The research results show that applying the PBL model has improved student learning outcomes. In the pre-cycle, only eight students, or 31%, achieved completeness, then this increased to 18 students, or the equivalent of 69% in cycle I, and in cycle II, it reached 26 students or 100% completion
THE INFLUENCE OF BPI PROGRAM ACTIVITY AND DISCIPLINE WORSHIP STUDENT ACHIEVEMENT AT RIAU JUNIOR HIGH SCHOOL
Authors: Irma Suryani  , Risnawati Risnawati  , Nasir Za’ba
Published: May 2024

The purpose of this study is to find the influence of BPI activeness and worship discipline on learning achievement in Islamic Religious Education lessons. The survey method was used in this study. The number of samples studied was 30 students of the Integrated Islamic Junior High School in Kampar. The results of the research obtained are as follows: BPI activeness and worship discipline have a significant influence on PAI learning achievement. The test results obtained that the value of F = 6.821 and Sig. 0.004 < 0.05. There is no significant effect of BPI activeness on PAI Learning Achievement. The results showed that tilapia t = 0.615 and Sig. = 0.544 > 0.05. There is a significant influence of Worship Discipline on PAI Learning Achievement. The test results obtained the results that the value of t = 2.596 and Sig. 0.015 < 0.05.
The Historical Stages of the Discussion about the Status of Prisoners of War at the International Conferences of the 19th Century
Authors: Serebryakova Svetlana G.
Published: May 2024

Nowadays the study of the formation and development of the legal status of prisoners of war is a task of current importance for historians. Present-day events demonstrate that moral treatment of prisoners of war is one of the developmental quotients of the whole society. The chronological frames of the paper are determined by the fact that it was in the 19th century that the fundamentals of the unifi ed legislation related to prisoners of war were created. The purpose of the work is to analyse the stages of formation of the legal status of prisoners of war within the framework of conventions and declarations adopted in the 19th century at the international conferences held in Geneva, Saint Petersburg, Brussels and The Hague. Finally, the author draws a conclusion about the international legal status of the prisoners of war at the end of the 19th century.