bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGHEMATAN BIAYA PEMBANGUNAN GEDUNG DIPO CENTER DENGAN MUTU BETON BERBEDA
Authors: Laurensius Evan , Waty Mega
Published: February 2025

Pembangunan gedung umum menggunakan beton bertulang, beton memiliki kekuatan yang beragam dari fc’35, fc’ 45, dll. Kuat tekan beton juga memiliki harga yang bervariasi semakin tinggi mutu nya semakin mahal harga nya. Sebelum melakukan pembangunan sangatlah penting untuk melakukan perhitungan RAB karena dengan ada nya RAB kita dapat mengetahui anggaran biaya yang akan di keluarkan dan metode pembangunan mana yang lebih efektif. Penelitian ini di lakukan dengan menggunakan metode analisis komparatif di mana penulis melakukan perbandingan harga pengecoran dengan menggunakan mutu beton tinggi dengan mutu beton berbeda harga yang di hasilkan akan menjadi bahan perbandingan pengecoran dengan beton mutu tinggi atau pengecoran dengan mutu berbeda yang lebih efektif. Penelitian ini di lakukan untuk mengetahui seberapa besar efesiensi biaya yang dapat di peroleh dengan penggunaan mutu beton berbeda. Efesiensi biaya yang didapatkan dengan menggunakan mutu beton berbeda sebesar ±9,82%.bila pembangunan menggunakan mutu beton berbeda. Didapatkan bahwa pengecoran dengan mutu beton tinggi adalah Rp 21.989.341.942,77. Jika pengecoran menggunakan mutu beton berbeda maka didapatkan harga sebesar Rp 19.829.336.609,91, maka penghematan biaya yang di dapatkan sebesar Rp2.160.005.332,86. Hasil analisis proyek akan lebih hemat dengan penggunaan mutu beton yang berbeda menghasilkan harga yang lebih murah.
ANALISIS PERBANDINGAN KINERJA SEISMIK STRUKTUR BANGUNAN ABC DENGAN VARIASI DIMENSI SHEAR WALL
Authors: Jonathan Jonathan , Untari Liucius Yenny , Wijaya Hendy
Published: February 2025

Indonesia is highly susceptible to earthquakes due to its location at the convergence of the Indo-Australian, Eurasian, and Pacific tectonic plates. This makes buildings in Indonesia particularly vulnerable to seismic damage. To enhance structural resilience, the use of shear walls has proven effective in strengthening buildings against earthquake forces. This study analyzes the seismic performance of the ABC building structure without shear walls and compares it to structures with three different shear wall configurations. These configurations vary in length and thickness but have similar moments of inertia. The shear walls are placed in identical positions across all models, ensuring that performance differences are solely due to geometric variations. Structures without shear walls serve as a baseline for comparison. The seismic load analysis uses the response spectrum method to evaluate key parameters such as behavior during natural vibration periods, percentage of seismic load received by the structure, lateral displacement, and inter-story drift. Findings indicate that the model with a 3-meter-long and 300 mm thick shear wall is the most effective, achieving the smallest reductions in natural vibration period and inter-story drift, thereby offering the best improvement in structural resilience.
ABSTRAK
Indonesia merupakan negara yang rawan gempa karena terletak di pertemuan tiga lempeng tektonik utama, yaitu Lempeng Indo-Australia, Eurasia, dan Pasifik. Posisi geografis ini menjadikan bangunan di Indonesia rentan terhadap kerusakan akibat gempa. Dalam upaya meningkatkan ketahanan struktur terhadap beban seismik, penggunaan shear wall telah terbukti efektif dalam memperkuat struktur dan meminimalkan kerusakan. Penelitian ini bertujuan untuk menganalisis dan membandingkan kinerja struktur seismik pada bangunan ABC tanpa shear wall dengan bangunan yang memiliki tiga variasi shear wall yang berbeda dalam dimensi panjang dan ketebalan tetapi memiliki nilai momen inersia yang serupa. Posisi shear wall pada ketiga model tetap seragam agar perbedaan kinerja disebabkan murni oleh variasi geometris. Analisis beban gempa pada bangunan menggunakan metode respon spektrum untuk mengevaluasi berbagai parameter kinerja struktur, yaitu periode getar alami, distribusi beban seismik yang diterima struktur, simpangan lateral tingkat, dan simpangan antar lantai tingkat. Berdasarkan hasil analisis pada tiga model shear wall, dapat disimpulkan bahwa pemodelan shear wall dengan panjang 3 meter dan tebal 300 mm merupakan yang pemodelan terbaik karena menghasilkan  penurunan nilai periode getar alami terbesar dan nilai simpangan antar lantai terkecil dibandingkan dengan struktur awal dan model shear wall lainnya.
ANALISIS PENGARUH KONDISI LINGKUNGAN TERHADAP MATERIAL BETON DAN KEKUATAN BETON PADA PROYEK KONSTRUKSI GERJEA SEBENAQ
Authors: Fredi Fredi , Sandjaya Arif
Published: February 2025

This study aims to evaluate the impact of environmental conditions on concrete material quality by comparing materials treated specifically with materials affected by the surrounding environment of the project. The concrete used in this research has a 1:2:3 mix ratio, expected to produce concrete quality of K220-K300. Specifically treated materials, such as cleaned and dried sand and gravel, were compared with materials contaminated by mud and other substances from the project area. The tests included water content, silt content, slump, and compressive strength. Results indicated that contaminated materials had higher water and silt content, potentially reducing the workability and strength of the concrete. Concrete made from clean materials achieved higher compressive strength up to 28 days compared to concrete from contaminated materials, which had lower compressive strength. This study concludes that appropriate material selection and treatment in concrete production are essential to achieve optimal quality and durability.
Abstrak
Penelitian ini bertujuan untuk mengevaluasi pengaruh kondisi lingkungan terhadap kualitas material beton dengan membandingkan material yang diperlakukan secara khusus dengan material yang terpengaruh oleh lingkungan di sekitar proyek. Beton yang digunakan dalam penelitian ini memiliki campuran rasio 1:2:3 yang diharapkan menghasilkan mutu beton K220-K300. Material yang diperlakukan secara khusus, seperti pasir dan koral yang dibersihkan dan dijemur, dibandingkan dengan material yang terkontaminasi lumpur dan material lain dari sekitar proyek. Pengujian yang dilakukan meliputi uji kadar air, uji kadar lumpur, uji slump, dan uji kuat tekan. Hasil menunjukkan bahwa material yang terkontaminasi memiliki kadar air dan lumpur yang lebih tinggi, yang berpotensi menurunkan workability serta kekuatan beton. Beton yang dibuat dengan material bersih mencapai kuat tekan yang lebih tinggi hingga umur 28 hari dibandingkan dengan beton dari material terkontaminasi, yang memiliki kuat tekan lebih rendah. Kesimpulan dari penelitian ini menunjukkan bahwa pemilihan dan perlakuan material yang tepat dalam proses pembuatan beton sangat penting untuk mencapai kualitas dan daya tahan yang optimal.
PERBANDINGAN KEBUTUHAN BESI DAN BIAYA MENGGUNAKAN METODE BAR BENDING SCHEDULE (BBS) PADA PROYEK RENOVASI RUMAH TINGGAL
Authors: Wakano Vania Yori , Sandjaya Arif
Published: February 2025

In a construction project, good planning is needed to support the success of the project. One of them is project cost planning. Material is the biggest determinant with a percentage of 50-70% of project cost requirements. Therefore, it is necessary to plan for optimal and accurate material requirements, especially to reduce waste or waste due to the material. The bar bending schedule (BBS) method is an accurate method of calculating material requirements because it pays attention to the cut pattern and length according to the existing working drawings. In this study, a comparison is made of the results of existing calculations based on field data with the BBS method related to the quantity of iron material requirements and the remaining material which then refers to the amount of material costs. That way, it can be seen the amount of correction of the quantity of iron material using the BBS method. Based on the calculation results, it shows that the quantity of iron material is 14.31% less and the remaining material is 1.18% less than the previous calculation results based on field data with the remaining material. This affects the total cost of materials issued from the previous Rp.59,941,200 to Rp.55,987,870 which means it can reduce project costs by Rp.3,953,330.
Abstrak
Pada suatu proyek konstruksi perlu adanya perencanaan yang baik untuk menunnjang keberhasilan proyek tersebut. Salah satunya adalah perencanaan biaya proyek. Material menjadi penentu paling besar dengan persentase 50-70% dari kebutuhan biaya proyek. Oleh karena itu, perlu adanya perencanaan kebutuhan material yang optimal dan akurat, terlebih untuk mengurangi pemborosan atau waste akibat material tersbut. Metode bar bending schedule (BBS) merupakan metode perhitungan kebutuhan material yang akurat sebab memperhatikan pola potongan dan ukuran panajng sesuai dengan gambar kerja yang ada. Pada penelitian ini, dilakukan perbandingan akan hasil perhitungan yang sudah ada berdasarkan data lapangan dengan metode BBS terkait kuantitas kebutuhan material besi dan sisa material yang kemudian mengacu pada besarnya biaya material. Dengan begitu, dapat terlihat besarnya koreksi kuantitas material besi dengan menggunakan metode BBS. Berdasarkan hasil perhitungan, menunjukan bahwa kuantitas material besi 14,31% lebih sedikit dan sisa material 1,18% lebih sedikit dibandingkan dengan hasil perhitungan sebelumnya berdasarkan data lapangan dengan sisa material. Hal ini mempengaruhi biaya total material yang dikeluarkan dari yang sebelumnya Rp.59.941.200 menjadi Rp.55.987.870 yang berarti mampu mengurangi biaya proyek hingga Rp.3.953.330.
Implementation of Project Based Learning Based Local Wisdom to Enhance Students’ Critical Thinking in Higher Education
Authors: Sari Herlini Puspika , Ilhami Aldeva , Rasool Shahid
Published: February 2025

Islamic Religious Education (IRE) contributes to the realization of quality education in line with the Sustainable Development Goals. Optimizing the learning of prospective IRE teachers is crucial in producing superior human resources to create inclusive characters in the 21st century. This study aims to analyze the implementation of Project-Based Learning (PjBL) based on local wisdom on the critical thinking abilities of prospective IRE teachers. A triangulation mixed-method research design was used with the integration of quantitative and qualitative data to obtain comprehensive research results. The research subjects were students of the IRE study program at UIN Sultan Syarif Kasim Riau. Data collection was carried out through critical thinking ability tests and interviews of students' learning experiences. Data analysis techniques used descriptive and inferential statistical methods with the help of SPSS software to analyze quantitative data. Qualitative data analysis used the interactive model of Miles and Huberman, consisting of data collection, data reduction, data presentation, and conclusion drawing. The results showed a significant difference in the average critical thinking abilities of students between the experimental and control classes (p<0.00). The application of PjBL-based local wisdom in Islamic religious learning can improve students' critical thinking abilities. The integration of Riau Malay local culture in learning shows a positive response and becomes a learning innovation for prospective IRE teachers.
The Relevance of Ibn Sina’s Thoughts in Facing Education in the Artificial Intelligence Era
Authors: Rifqi Khairul Anam  , Abdelmajid Idris Mohammad Khalil
Published: February 2025

This research investigates the impact of human dependence on AI in education and explores the relevance of Ibn Sina's philosophy as a framework for addressing this challenge. By analyzing scholarly literature on Ibn Sina's educational thought and AI in education, the study identifies key themes, such as the role of human reason, ethical considerations, and the potential impact of AI on learning. The findings suggest that Ibn Sina's emphasis on holistic development, including intellectual, ethical, and spiritual dimensions, offers valuable insights for contemporary education. The study concludes that by integrating Ibn Sina's principles with AI-driven education, educators can create learning environments that foster critical thinking, moral reasoning, and ethical decision-making, ensuring the holistic development of students in the digital age.
Perceptions of Postgraduate Trainee’s about Professional Behavior: A Qualitative Content Analysis
Authors:   Bolan Medical College, Quetta, Farasat Nabiha , Bazai Raz Muhammad , Ilyas Muhammad , Saeed Muhammad , Saeed Usama
Published: February 2025

OBJECTIVE: The current study explores the perceptions and experiences of PG trainees on medical professionalism. After taking IRB from Bolan University of Medical and Health Sciences, a semi-structured interview was conducted in April-May 2024 by two qualitative researchers. Data was audio-recorded, and feel notes were taken from PG trainees of the Physiatry, General Medicine, and Neurosurgery departments. The transcript prepared was coded, classified and similar codes were placed in subthemes. The sub-themes if represent similarities were merged. Thematic and content analysis was conducted. The methodology was according to the Consolidated Criteria for Reporting Qualitative Research (COREQ) checklist (Supplementary data). Informed consent was filled, and confidentiality and privacy were confirmed. PGs were asked to answer six questions related to professionalism. During content analysis male PG trainees were observed dominant (n=17/22, 77%), majority (n=18/22, 82%) were above the age of 30 years. Almost all (n=20/22, 95%) PG trainees realized the efficacy of teamwork, 85% accepted the successfulness of good communication skills, and 81% (18/22) recognized self-assessment assists in becoming a competent professional.

CONCLUSION: PG trainees recognized professionalism as a core component and base of postgraduate training. They believe that the use of mobile phones and social media at work is one of the roadblocks to professionalism. Moreover, the disrespectful behavior of patients can be managed by good communication skills.

KEYWORDS: Perceptions, PG trainees, medical professionalism, Qualitative Assessment.
In vitro assessment of cytotoxicity, antioxidant and anti-inflammatory activities of Zingiber zerumbet rhizome essential oil
Authors: Nayak Ananya , Gadnayak Ayushman , Jena Sudipta , Ray Asit , Sahoo Ambika
Published: February 2025

The present research deals with studying the phytoconstituents, antioxidant potential, cytotoxicity and anti-inflammatory activities of the Zingiber zerumbet rhizome essential oil (ZZEO). A total of 29 components were identified using GC-MS accounting for 94.68% of the total EO composition. The ZZEO was characterized by sesquiterpenes, comprising of 83.11% of the total composition with zerumbone (68.18%) and α-Humulene (11.72%) as the major compounds. The DPPH and FRAP assays of the rhizome essential oil showed IC50 values of 83.90±0.05 mg/ml and 1.98±0.04 mg/ml respectively. The in silico PASS prediction revealed that compounds more than 1% area, such as α-Pinene (0.853>0.005), camphor (0.701>0.015), β-caryophyllene (0.741> 0.011), spathulenol (0.769>0.009) and zerumbone (0.764>0.002) exhibited Pa>0.7 value, confirming ZZEO's anti-inflammatory potential.

The in vitro cytotoxic effect of the ZZEO was evaluated against RAW 264.7 murine-macrophage cell line by using MTT assay, which resulted in very little cytotoxicity (IC50=176.71 μg/ml). Furthermore, at a concentration of 100μg/mL, the rhizome essential oil demonstrated significant anti-inflammatory potential in LPS-activated RAW 264.7 macrophage cells by reducing nitric oxide (NO) production. The study results revealed that the ZZEO is a rich source of bioactive constituent, zerumbone, with potential anti-inflammatory activity, leading to further investigation for the development of anti-inflammatory drugs.
Ring-opening Polymerization of Unprotected Hydroxyproline N-Carboxyanhydride for the Facile Synthesis of Linear and Branched Poly-L-hydroxyproline
Authors: Wang Letian , Wang Wencan , Zhu Xinyi , Tang Chenming , Jing Xiaodong , He Yahui , Amengual Justin , Lin Yao , Yu Zhixiang , Lu Hua
Published: February 2025

Poly-L-hydroxyproline (PHyp) represents an important model for comprehending polyproline II helix and a key step toward mimicking collagen, the most abundant protein for animals, and holds immense potential for broad biomedical applications. The synthesis of PHyp, however, involves inefficient protection-deprotection steps and has been restricted to relatively low molecular weight (MW) and linear topology. Here, we report the first ring-opening polymerization (ROP) of unprotected hydroxyproline N-carboxyanhydrides (Hyp-NCA) for the facile one-step synthesis of PHyp with tunable linear or branching topologies. Employing an innovative water-assisted ultrafast polymerization technique, the research achieves the synthesis of linear PHyp with MW up to 11.0 kDa, featuring adjustable terminal groups and narrow dispersity. The study further introduces a tertiary amine-triggered one-pot polymerization method in DMSO, which leads to the facile preparation of branched PHyp (B-PHyp) within 2 h with MW up to 438 kDa, ~40 times higher than previous record of PHyp. Experimental and computational studies collectively uncovered novel details about the initiation, branching, and propagation steps of the reaction, providing fresh insights into the general mechanism regarding the ROP of NCA. Facile post-polymerization modification of B-PHyp affords injectable hydrogels with a critical gelization concentration as low as 1.0%. The polymers, characterized by their distinctive collagen-like polyproline type II (PPII) helices, offer significant prospects in drug delivery, wound healing, and other biomedical applications.
Overview on Building Blocks and Applications of Efficient and Robust Extended Tight Binding
Authors: Katbashev Abylay , Stahn Marcel , Rose Thomas , Alizadeh Vahideh , Friede Marvin , Plett Christoph , Steinbach Pit , Ehlert Sebastian
Published: February 2025

The extended tight binding (xTB) family of methods opened many new possibilities in the field of computational chemistry. Within just five years, the GFN2-xTB parametrization for all elements up to Z=86 enabled more than a thousand applications, which were previously not feasible with other electronic structure methods. The xTB methods provide a robust and efficient way to apply quantum mechanics based approaches for obtaining molecular and solid state geometries, computing free energy corrections or describing non-covalent interactions and found applicability for many more targets. A crucial contribution to the success of the xTB methods is the availability within many simulation packages and frameworks, supported by the open source development of its program library and packages. We present a comprehensive summary of the applications and capabilities of xTB methods in different fields of chemistry. Moreover, we consider the main software packages for xTB calculations, covering their current ecosystem, novel features and usage by the scientific community.
Multi-objective Bayesian optimization for experimental design in copolymerization and revealing chemical mechanism of Pareto fronts
Authors: Yamada Hiromu , Takasuka Shogo , Oikawa Shunto , Harashima Yosuke , Takayama Tomoaki , Nag Aniruddha , Wakiuchi Araki , Ando Tsuyoshi , Sugawara Tetsunori , Hatanaka Miho , Miyao Tomoyuki , Matsubara Takamitsu , Ohnishi Yu-ya , Ajiro Hiroharu , Fujii Mikiya
Published: February 2025

The chemical properties of copolymers are strongly influenced by a number of intrinsic characteristics such as their molecular weight and their monomer composition ratio. Identifying the optimal conditions for the copolymerization process that results in a synthesized copolymer with the desired characteristics is a major challenge. Optimization of the copolymerization process has traditionally been based on trial-and-error approaches by humans relying on em-pirical rules. Thus, the design space that can be explored experimentally is severely limited under time and economic constraints. In addition, solving problems such as nonuniformity of both temperature and the concentration of chemi-cals in the reaction field is also challenging. In this study, we established multi-objective Bayesian optimization and flow copolymerization systems to explore optimal copolymerization conditions for synthesizing copolymers that sim-ultaneously exhibit multiple target characteristics. Finally, we visualized Pareto fronts representing trade-offs be-tween polymer characteristics and employed quantum chemical calculations to reveal chemical origins of Pareto fronts.
Synthesis of aniline from dinitrogen and benzene mediated by supported sodium on magnesium oxide
Authors: Zhang Shixiong , Cai Yongli , Wen Hong , Liu Liang , Yu Lei , Wei Junnian , Guo Jianping , Xi Zhenfeng , Chen Ping
Published: February 2025

The activation and transformation of small molecules such as dinitrogen (N2) and benzene has been a long-sought-after objective in synthetic chemistry. However, it remains a formidable challenge due to the chemical inertness of the highly robust N≡N and aryl C-H bonds. On the other hand, one of the significant challenges in C-N bond formation is the competitive adsorption and activation of N2 and benzene. Here we report the sodium supported on magnesium oxide (Na/MgO) nanoparticles possess reactive sites for the activation of both N2 and benzene, leading to C-N bond formation and providing the anilines with high selectivity on further protonation. The interplay of sodium, magnesium, and hydride species at the interface of Na and MgO plays a key role in N2 reduction and hydrogenation to NHx species, which then deprotonate the aryl C-H bond resulting in the formation of sodium anilide on MgO. The subsequent protonation of sodium anilide produces aniline with a high selectivity (>90%). This work demonstrates a strategy for the transformation of N2 and simple arenes into organic nitrogen-containing compounds via a solid surface-mediated process.
Nature and mimetics: The PPII secondary structure in protein functionality and assembly of higher order structures
Authors: Seco Francisco , Amador Sandro , Conzuelo Felipe , Baptista Ana C. , Morgado Leonor , Pina Ana S.
Published: February 2025

The polyproline II helix is more common as a secondary structure than previously thought. Its significance extends to mediating various protein-protein interactions, both structurally and functionally, in natural systems. This structure is associated with the formation of supramolecular assemblies, which have been investigated for biomimetic applications. We present three examples of utilizing polyproline II helices: structurally in collagen and biomolecular condensates, and functionally in the creation of hyperactive antifreeze proteins. Additionally, we thoroughly discuss the detection limits of these helices using a range of current biophysical methods and artificial intelligence-based models.
REVIEW OF THE APPLICATION OF BIDIRECTIONAL BLADES IN HORIZONTAL AXIS TIDAL TURBINES
Authors: Wang Zihang
Published: February 2025

Currently, there are three main approaches to solving the problem of bidirectional power generation from ocean currents: utilizing variable pitch mechanisms, passive yaw systems and specially designed bidirectional rotors. Bidirectional rotors can directly harness bidirectional ocean currents. Although the performance of bidirectional blades is inferior to that of unidirectional blades, their simple structure, low cost, and high reliability confer unique advantages in certain scenarios. Numerous research team are dedicated to improving blade design and manufacturing processes to enhance their efficiency and performance. This article reviews their contributions and points out that bidirectional blades have unique applications in certain marine energy sectors and will become an important component of renewable energy technology.
TRACTOR OPERATED PLASTIC MULCH LAYING IMPLEMENT FOR VEGETABLE CULTIVATION AS PART OF CLIMATE SMART TECHNOLOGY
Authors: Lham Pem , Norbu Kinga , Phuntsho Ugyen , Tshomo Dorji
Published: February 2025

For the sustainable production of food and vegetables, the growing environment is crucial in determining the quality and yield of the crops. Mulching have a positive environmental affects such as improved soil parameters, regulate temperature of soil and plant roots, reduce weed growth and enhance nutrients of the crop. Laying of mulch plastic manually is time consuming which involves a lot of labour and also is a very tedious job. A mulch laying implement which is attached to 34hp tractor power source was developed, tested and evaluated to access its performance and efficiency in terms of soil covering, air pockets and plastic injuries at three different speeds of 1km/h, 1.4km/h and 2.02km/h. The result indicated that although the uncovered mulch film rose with increasing speed the mulching efficiency is almost same for all the three calibrated forward speeds and there were no significant difference between the mean of the percent uncovered film statistically. No torn mulch plastic and air pocket was observed except a 3.42% of torn mulch plastic at forward speed of 1km/h which led to a mulching efficiency of 89.54, 89.80 and 89.44% and an effective field capacity of 0. 2.2 acres/day, 2.5 acres/day and 2.7 acres/day at 1, 1.4 and 2.02 km/h forward speeds respectively, considering 7 working hours a day.
PRESENT STATUS AND PROBLEM CONFRONTATION OF FARM MECHANIZATION IN BANGLADESH
Authors: Salam Md. Darus , Oyshy Jannatul Mursaleen , Ahmed Mohahammad Bashir , Islam Md. Matiul
Published: February 2025

Mechanization is an important tool for profitable and competitive agriculture. Proper selection and utilization of machinery effortlessly would boost and optimize farm production. The study aimed to quantify the present status and problem confrontation of villages named Shovna, Khornia, and Tipna villages under Dumuria Upazila of Khulna district and Ashurkhai, Brommotor, Bakdokra villages under Saidpur Upazila of Nilphamari about farm mechanization and to explore the relationship between the selected characteristics of the respondents and their problems associated with farm mechanization. A validated and structured interview schedule was used to collect data from 150 farmers’ during December 2020. The farmers’ of the study area used 25 mechanized implements/ machinery at different stages of cultivation to a different extent. The farmers of the study area highly used sprayers (for controlling insect-pests and diseases) to the highest extent while they used moisture meter at the least extent. Besides those, the respondents used some farm machinery (such as diesel pumps, tractors, and power tillers). About three-fourths (75.33%) of the respondents belonged to the medium machinery use category, whereas about one-fourth (24.67%) of them belonged to the low use category. None of them belonged to the high-use category. The majority (51.3 %t) of the respondents belonged to the high problem confrontation category; on the other hand, about two-fifths (38.0%) and one-tenth (10.7%) of them confronted medium and very high problems respectively. Among nine selected characteristics of the farmers’ age, family size, and training experience showed a negative significant relationship with their problem confrontation while educational qualification had a significant positive relationship with problem confrontation of the farmers.
TRUNCATION EFFECTS OF OPTICAL PERFORMANCE FOR DIFFERENT SOLAR GEOMETRICAL- CONCENTRATORS
Authors: Saleh Imhamed M. , Khalifa Khalifa , Bughazem Mohamed , Diryag Ali k.
Published: February 2025

The height of a solar concentrator significantly influences the performance of a 3-D solar concentrator. Truncated concentrators offer a higher acceptance angle, making them suitable for capturing sunlight from varying sun inclinations. To improve understanding of the geometrical-optical performance of six different concentrators, this paper examines truncation of the aperture may affect optical performance for the top 20% of ideal concentrators. Although using truncated concentrators may result in lower concentration ratios, they compensate with high optical efficiency and exceptional performance across a wide range of solar angle. These configurations include the Elliptical Parabolic Concentrator (EPC), Circular Parabolic Concentrator (CCPC), Square Parabolic Concentrator (SPC), Elliptical Hyperboloid Concentrator (EHC), Circular Hyperboloid Concentrator (CHC), and Square Hyperboloid Concentrator (SHC). This study compares commonly used optical elements with newer concentrator designs based on their optical performance. A detailed analysis utilizing ray tracing techniques identifies key parameters that influence the overall performance of these concentrators. For instance, the CCPC achieves 92% acceptance at ±10º, while the Square Parabolic Concentrator (SPC) accepts approximately 77% at ±15º. The Elliptical Parabolic Concentrator (EPC) reaches about 29% at ±30º. Similarly, for hyperboloid profiles, some light ray’s incident on the aperture area of each Circular Hyperboloid Concentrator (CHC) also reach the receiver for incidence angles between ±15º. However, the angular acceptance varies above ±15º due to differences in the reflector surface geometry. For example, the CHC attains 27% acceptance at ±15º, while the Square Hyperboloid Concentrator (SHC) achieves about 39% at the same angle. The Elliptical Hyperboloid Concentrator (EHC) reaches approximately 30% at ±30º.
Štatistický prieskum o prevencií závažných havárií (ZH) v členských štátoch EÚ v rokoch 2000-2023
Authors:   University of Žilina, Hollá Katarína , Kočkár Samuel ,   University of Žilina
Published: February 2025

The article provides a statistical analysis of serious industrial accidents (SIAs) in European Union Member States between 2000 and 2023, with a particular focus on the general chemicals manufacturing sector, which recorded the highest
number of SIAs. Utilizing data from the eMARS database, the study examined 124 accident reports from this high-risk sector, accounting for 10.4% of all recorded incidents. The findings revealed that toxic spills were the predominant physical consequence, with primary causes identified as technical equipment failures, improper working practices, and organizational deficiencies. Furthermore, the study underscores the impact of the SEVESO III Directive, implemented in 2015, in significantly reducing accident occurrences, particularly in recent years. These results highlight the ongoing need to enhance safety measures and risk management strategies in industrial operations.
Bezpečnosť zdravotníckych zariadení
Authors:   University of Žilina, Zelenák Michal , Kyselák Jan ,   University of Žilina
Published: February 2025

The healthcare industry is changing daily. One of the top security issues affecting hospitals today is workplace violence. People rarely act violently without warning. Often, there are indicators that may be overlooked, remain unreported, or, even when reported, are not adequately evaluated and addressed. Healthcare facilities must have policies and procedures that require reporting of threatening or unusual behaviours. Having preventive policies and procedures in place is the first step in mitigating violence and providing a safe and secure hospital. The authors describe how to manage staff more efficiently and implement strategic plans to help acquire resources within a restricted revenue environment. Processes to manage emergent events, provide risk assessments, and evaluate and understand technology.
Model ALRISK BOZP pre posudzovanie a riadenie pracovných rizík a jeho verifikácia v podnikoch. Verifikácia modelu ALRISK v praxi
Authors:   University of Žilina, Kuricová Alena , Hollá Katarína ,   University of Žilina, Kočkár Samuel ,   University of Žilina, Boudebs Mihaela ,   University of Žilina
Published: February 2025

The article focuses on the field of Occupational Safety and Health (hereinafter referred to as OSH), with an emphasis on risk assessment and management in enterprises. Occupational safety and health is a field in which procedures and applications are continuously evolving and changing based on legal regulations, new directives, and guidelines. In this way, relevant organizations strive to ensure continuous progress and provide up-to-date information to ensure safety and prevent workplace injuries. This area is considered extremely important by several authors, as it deals with various factors that affect employees' health. In enterprises, risks are encountered daily. Risks are present in various areas of operation. Through risk assessment, we can identify, analyze, evaluate, and mitigate risks. From the risk assessment, we can determine whether the risks are acceptable and subsequently propose appropriate measures to reduce their level of risk. Proper risk management in a company enables us to effectively monitor risks, inform employees about residual risks, provide information on the progress of risk reduction in enterprises, and communicate and consult on problems and potential risks in the workplace. The aim of the article is to highlight the ALrisk model as a systematic process for risk assessment and management, designed to be applicable to any job position. Another goal is to clarify the foundations of the ALrisk model and emphasize research as the main basis for the proposed model.
Strategi Guru Akidah Akhlak dalam Menghadapi Tantangan Perilaku Sosial Peserta Didik pada Abad 21 di Madrasah
Authors: Fitriyah Farihatil , Zakariyah Zakariyah , Dwijo Al Qudus Nofiandri Eko Sucipto
Published: February 2025

Tujuan penelitian ini adalah untuk mengetahui strategi yang digunakan oleh guru Akidah Akhlak dalam menghadapi tantangan perilaku sosial peserta didik pada abad 21 di MAN Sumenep. Penelitian ini menggunakan metode penelitian kualitatif dengan jenis penelitian kualitatif deskriptif. Teknik pengumpulan data yang digunakan melalui observasi, wawancara dan dokumentasi. Sumber data yang digunakan adalah data primer dan data sekunder. Analisis data yang dilakukan adalah dengan kondensasi data, penyajian data, dan penarikan kesimpulan. Masalah yang ditemukan di MAN Sumenep adalah merosotnya perilaku sosial peserta didik salah satunya karena kemajuan teknologi yang memberi dampak banyak hal terhadap peserta didik di antaranya, mereka cendrung kurang peduli terhadap lingkungan, mulai terbawa oleh suasana kehidupan yang individualis, menurunnya daya saing antar peserta didik, lemah dalam menentukan komunitas pertemanan dan merosotnya nilai-nilai akhlak di kalangan mereka. Untuk mengatasi masalah tersebut, guru Akidah Akhlak menerapkan strategi dengan menanamkan pentingnya belajar sebagai bekal di masa depan, mengajak peserta didik untuk peduli terhadap lingkungan, menggalakkan adab dan budi pekerti, mengaitkan materi Aqidah Akhlak dengan kehidupan nyata (kontekstual), memahami pola pikir peserta didik, menjadikan diri sebagai contoh atau teladan bagi peserta didik, dan berkolaborasi dengan wali murid.
The purpose of this study was to determine the strategies used by Akidah Akhlak teachers in facing the challenges of students’ social behavior in the 21st century at MAN Sumenep. This research uses qualitative research methods with descriptive qualitative research types. Data collection techniques used through observation, interviews, and documentation. The data sources used are primary data and secondary data. Data analysis is done by condensing data, presenting data, and drawing conclusions. The problem found in MAN Sumenep is the decline of social behavior of students one of which is due to technological advances that impact many things on students including, they tend to care less about the environment, began to be carried away by the atmosphere of individualist life, decreased competitiveness among students, weak in determining the community of friends and the decline of moral values among them. To overcome these problems, Akidah Akhlak teachers apply strategies by instilling the importance of learning as a provision for the future, inviting students to care for the environment, promoting adab and manners, linking Aqidah Akhlak material with real life (contextual), understanding the mindset of students, making themselves as examples or role models for students, and collaborating with student guardians.
Differential Privacy-Enabled TextCNN for MOOCs Fake Review Detection
Authors: Chen Caiyun
Published: February 2025

The rapid development and widespread adoption of massive open online courses (MOOCs) have indeed had a significant impact on China’s education curriculum. However, the problem of fake reviews and ratings on the platform has seriously affected the authenticity of course evaluations and user trust, requiring effective anomaly detection techniques for screening. The textual characteristics of MOOCs reviews, such as varying lengths and diverse emotional tendencies, have brought complexity to text analysis. Traditional rule-based analysis methods are often inadequate in dealing with such unstructured data. We propose a Differential Privacy-Enabled Text Convolutional Neural Network (DP-TextCNN) framework, aiming to achieve high-precision identification of outliers in MOOCs course reviews and ratings while protecting user privacy. This framework leverages the advantages of Convolutional Neural Networks (CNN) in text feature extraction and combines differential privacy techniques. It balances data privacy protection with model performance by introducing controlled random noise during the data preprocessing stage. By embedding differential privacy into the model training process, we ensure the privacy security of the framework when handling sensitive data, while maintaining a high recognition accuracy. Experimental results indicate that the DP-TextCNN framework achieves an exceptional accuracy of over 95% in identifying fake reviews on the dataset, this outcome not only verifies the applicability of differential privacy techniques in TextCNN but also underscores its potential in handling sensitive educational data. Additionally, we analyze the specific impact of differential privacy parameters on framework performance, offering theoretical support and empirical analysis to strike an optimal balance between privacy protection and framework efficiency.
Research on Bearing Fault Diagnosis Method based on Deep Learning
Authors: Zheng Ting
Published: February 2025

Bearing is an indispensable key component in mechanical equipment, and its working state is directly related to the stability and safety of the whole equipment. In recent years, with the rapid development of artificial intelligence technology, especially the breakthrough of deep learning technology, it provides a new idea for bearing fault diagnosis. Deep learning can automatically learn features from a large amount of data, has a strong nonlinear modeling ability, and can effectively solve the problems existing in traditional methods. Aiming at the key problems in bearing fault diagnosis, this paper studies the fault diagnosis method based on deep learning, which not only provides a new solution for bearing fault diagnosis but also provides a reference for the application of deep learning in other mechanical fault diagnosis fields.
Agricultural IoT Security Risk Assessment Method Based on Random Forest
Authors: Liu Xinzhe
Published: February 2025

The agricultural Internet of Things (IoT) system is a critical component of modern smart agriculture, and its security risk assessment methods have garnered increasing attention from the industry. Current agricultural IoT security risk assessment methods primarily rely on expert judgment, introducing subjective factors that reduce the credibility of the assessment results. To address this issue, this study constructed a dataset for agricultural IoT security risk assessment based on real-world security reports. A PCARF algorithm, built on random forest principles, was proposed, incorporating ensemble learning strategies to enhance prediction accuracy. Compared to the second-best model, the proposed model demonstrated a 2.7% increase in accuracy, a 3.4% improvement in recall rate, a 3.1% rise in Area Under the Curve ( AUC), and a 7.9% boost in Matthews Correlation Coefficient (MCC). Extensive comparative experiments showed that the proposed model outperforms others in prediction accuracy and robustness.
The Evolution of Traffic Lights: A Comprehensive Analysis of Traffic Management Systems in Shanghai
Authors: Guo Zhichen Eden
Published: February 2025

This paper comprehensively analyzes the evolution of traffic light systems in Shanghai, highlighting the technological advancements and their impact on traffic management and safety. Starting from the historical context of the first traffic light in London in 1868 to the modern automated systems, the study explores the complexity and adaptability of traffic lights in Shanghai. Through field surveys and interviews with traffic engineers, the paper debunks common misconceptions about traffic light operation, revealing a sophisticated network that responds to real-time traffic dynamics using software like the Sydney Coordinated Adaptive Traffic System (SCATS) 6. The study also discusses the importance of pedestrian safety, suggesting future enhancements such as Global Positioning System (GPS) based emergency systems and accommodations for color-blind individuals. The paper further delves into the potential of Artificial Intelligence (AI) and Vehicle-to-Infrastructure (V21) technology in revolutionizing traffic light systems, emphasizing their role in improving traffic flow and safety. The findings underscore Shanghai’s progressive approach to traffic management, showcasing the city’s commitment to optimizing traffic control solutions for the benefit of both vehicles and pedestrians.
Neuroeducación y aprendizaje lúdico: evidencias sobre el impacto del juego en el desarrollo cognitivo. Revisión sistemática
Authors: Hernández Mite Kelly Deysi , Guerrero Ávila Zoila Eugenia , Ruiz Jácome Elizeth Cristina , Godoy Cazar Dennys Tammy
Published: February 2025

El presente artículo tiene como objetivo analizar las evidencias científicas sobre el impacto del aprendizaje lúdico en el desarrollo cognitivo desde el enfoque de la neuroeducación. Se realizó una revisión sistemática siguiendo las directrices PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses). La búsqueda se llevó a cabo en bases de datos como PubMed, Scopus y Web of Science, utilizando términos relacionados con "neuroeducación", "aprendizaje lúdico" y "desarrollo cognitivo". Se incluyeron estudios publicados entre 2010 y 2024 en inglés y español, obteniendo un total de 18 artículos que cumplieron con los criterios de inclusión. Los resultados destacan que el aprendizaje lúdico estimula áreas cerebrales asociadas con la memoria, la atención y las funciones ejecutivas, facilitando procesos como la resolución de problemas y el pensamiento crítico. Además, el juego promueve conexiones neuronales en edades tempranas y mejora la regulación emocional. Las metodologías más efectivas incluyen el aprendizaje basado en juegos y actividades interactivas en contextos educativos. En conclusión, el aprendizaje lúdico constituye una herramienta esencial para optimizar el desarrollo cognitivo, especialmente en la infancia. Las evidencias respaldan la implementación de estrategias basadas en el juego en entornos educativos para potenciar habilidades cognitivas y socioemocionales. Se sugiere realizar investigaciones futuras que integren enfoques interdisciplinarios para fortalecer estas conclusiones.
Prevalencia de enfermedades sistémicas en pacientes atendidos en las clínicas odontológicas de la Universidad de Guayaquil
Authors: Ortega Rodríguez Danais Anniemari , Suasnabas Pacheco Erika Jazmín , Segura Cueva Kareelend Andreina , Carrasco Cachinelli Carlos Guillermo
Published: February 2025

El objetivo de este estudio fue determinar la prevalencia de enfermedades sistémicas en pacientes atendidos en las clínicas odontológicas de la Universidad de Guayaquil. Se utilizó una metodología epidemiológica de tipo descriptiva, transversal y observacional. La muestra incluyó pacientes atendidos durante un periodo determinado, registrando sus enfermedades sistémicas mediante fichas clínicas, garantizando la confidencialidad de la información. Los datos recolectados se analizaron en Microsoft Excel y mediante el software estadístico SPSS, relacionándolos con variables como sexo, edad y nivel académico. Los resultados mostraron que un 37,7% de los pacientes presentaron alguna enfermedad sistémica. La hipersensibilidad fue la condición más frecuente con 10,7%, seguida por hipertensión arterial (6,3%), enfermedades gástricas (4,1%) e hipotiroidismo (4,1%). Se observaron diferencias significativas en la prevalencia de algunas enfermedades en función del género, la edad y el nivel académico. En conclusión, la prevalencia de enfermedades sistémicas en pacientes odontológicos es considerable, lo que resalta la importancia de realizar valoraciones médicas integrales. Estos resultados permiten reforzar el conocimiento de estudiantes y profesionales de odontología, fomentando la implementación de protocolos adecuados para evitar complicaciones durante los tratamientos y mejorar la calidad de vida de los pacientes.
Evaluación y tratamiento emergente de lesiones en codo y el antebrazo en pacientes pediátricos
Authors: García Villacis Zully Alexandra , Rosas Cervantes Zahira Diana , Calderón Mera Miguel Alfredo , Zambrano Zambrano Jissett Annabelle
Published: February 2025

Las fracturas de codo en los pacientes pediátricos, representan una de las lesiones más frecuentes y difíciles de manejar, teniendo como propósito primordial, tratar de mantener la más mínima cantidad de los fragmentos y lograr así una cinética adecuada de la extremidad afectada. Para llevar a cabo esta revisión bibliográfica, se realizó una búsqueda exhaustiva en bases de datos científicas como PubMed, Scopus y Cochrane, utilizando términos MeSH y palabras clave relevantes como "lesiones de codo", "lesiones de antebrazo", "pacientes pediátricos", "evaluación", "tratamiento emergente" y combinaciones de estos. Se establecieron criterios de inclusión y exclusión para seleccionar los estudios, considerando el tipo de estudio (ensayos clínicos, estudios observacionales, revisiones sistemáticas), la población (pacientes pediátricos), la intervención (evaluación y tratamiento inicial) y el idioma (artículos publicados en español). La evaluación y el tratamiento de las lesiones en codo y antebrazo en niños requieren un enfoque multidisciplinario y personalizado. La colaboración entre pediatras, traumatólogos y otros profesionales de la salud es esencial para garantizar la mejor atención a estos pacientes. La investigación continua en este campo es necesaria para desarrollar nuevas estrategias de diagnóstico y tratamiento que mejoren los resultados a largo plazo.