bluuebunny/crossref_metadata_2025 huggingface dataset:
Multiplicity of weak solutions for a class of quasilinear elliptic Neumann problems using Variational methods
Authors: Ahmed Ahmed , Elemine Vall Mohamed Saad Bouh
Published: February 2025

The existence of infinitely many weak solutions for the strongly nonlinear elliptic equation of the
form
$$\left\{\begin{array}{ll}
-\mathrm{div}\Big( w_{1}(x)|\nabla u|^{p(x)-2}\nabla u\Big) + w_{0}(x){\mid u \mid}^{p(x)-2}u = f(x,u)+ g(x,u) \quad &\mbox{in} \quad \Omega, \\
\frac{\partial u}{\partial \gamma}=0\quad \textrm{on }\partial \Omega.
\end{array}\right.$$ is proved by applying a critical point variational principle obtained by B. Ricceri in weighted variable exponent Sobolev space $W^{1,p(\cdot)}(\Omega,w_{0},w_{1})$.
COMPARATIVE ANALYSIS OF MICROORGANISMS AROUND TEETH AND IMPLANTS IN HEALTH AND DISEASE
Authors:   Department of Periodontology, Faculty of Dental Medicine, Medical University - Sofia, Bulgaria., Maynalovska Hristina , Mlachkova Antoaneta ,   Department of Periodontology, Faculty of Dental Medicine, Medical University - Sofia, Bulgaria., Kotsilkov Kamen ,   Department of Periodontology, Faculty of Dental Medicine, Medical University - Sofia, Bulgaria.
Published: February 2025

Aim: Dental implants are a reliable solution for replacing missing teeth and restoring oral health. Despite their high survival rates, complications such as peri-implant mucositis and peri-implantitis remain common challenges. This underscores the importance of assessing implant success not only in terms of stability but also by preserving healthy peri-implant tissues. The review consolidates recent findings on the peri-implant microbiome and examine its relationship with the dental microbiome under both healthy and diseased conditions.
Methods: For the present review a search was conducted on PubMed, Google Scholar, and ScienceDirect.
Results: Modern microbial identification techniques have uncovered new species previously unknown or not considered in the context of periodontal infection. It is now understood that the peri-implant biofilm, both in health and disease, is not as similar to that on teeth as previously thought. The implant biofilm is directly influenced by the implant material, the implant-abutment connection, the implant surface, as well as the biofilm present in the patient’s mouth.
Conclusion: The submucosal microbiota of peri-implantitis lesions has not been extensively studied using culture-independent techniques and our understanding of the microbial profile associated with peri-implantitis remains incomplete.
Smokeless Tobacco Use is Associated with Worse Outcomes Following Open Tibia Fracture
Authors: Waters Timothy L , Winter Julianna E , Delvadia Bela P , Sherman William F , Lee Olivia C
Published: February 2025

Background

Smoking is a known risk factor for complications after open tibia fractures, but it is unclear if smokeless tobacco confers a similar risk.

Objective

The purpose of this study was to evaluate the rates of postoperative complications after surgical fixation of open tibia fractures in smokeless tobacco users as compared to matched tobacco naïve controls.

Methods

A retrospective cohort study was conducted using the national PearlDiver database. For patients who had a unilateral open tibia fracture, smokeless tobacco users (n=121) and tobacco-naïve controls (n=242) were matched at a 1:2 ratio. Rates of bone complications within 1 year were compared using multivariable logistic regression.

Results

Compared to controls, the smokeless tobacco user cohort demonstrated significantly higher rates of nonunion (OR: 3.42, 95% CI: 1.05 – 11.12), infection / inflammatory reaction of implant (OR: 12.45, 95% CI: 2.67 – 58.93), and osteomyelitis of the leg (OR: 6.15, 95% CI: 1.90 – 19.93) within 1 year of open tibia fracture. Compared to the most recent population figures, smokeless tobacco use was significantly under-reported in both males and females.

Conclusions

Smokeless tobacco use confers an increased risk of fracture nonunion, infection or inflammatory response to implant, and osteomyelitis of the leg in patients with open tibia fractures. Surgeons should consider this risk when counseling patients and deciding on treatment plans for patients with tibia fractures.
Recent advances in synthesis, characterization and energy storage performance of bio-engineered activated carbon for supercapacitors
Authors: Olakunle I Oresegun  , Oyinlola Rukayat Obanla  , Timothy Adewale ADEYI  , Mohammed Issa Abdul-Rahman  , Francis Mekunye  , Moses Antwi  , Olorunfemi Dolapo Abiodun
Published: February 2025

With the growing demand for sustainable, high-performance energy storage solutions, research into bio-engineered activated carbon as an affordable and environmentally friendly supercapacitor electrode material has gained momentum. This review critically examines recent advances in the synthesis, characterization, and energy storage capabilities of bio-derived activated carbon. Advanced characterization techniques have provided valuable insights into the structural, chemical, and morphological properties of these materials. The review emphasizes the role of micro/mesoporous structures and surface functionalities in enhancing specific capacitance, energy density, and cycling stability. However, challenges such as scalability, consistency, and conductivity remain. Emerging strategies to address these issues, including material functionalization, hybrid electrode systems, and sustainable production methods, are explored. The review also discusses the future potential of bio-engineered activated carbon in next-generation energy storage devices, particularly flexible and wearable supercapacitors, highlighting its transformative role in advancing sustainable energy technologies.
Theoretical framework for dynamic mechanical analysis in material selection for high-performance engineering applications
Authors: Enoch Oluwadunmininu Ogunnowo  , Elemele Ogu  , Peter Ifechukwude Egbumokei  , Ikiomoworio Nicholas Dienagha  , Wags Numoipiri Digitemie
Published: February 2025

Dynamic Mechanical Analysis (DMA) is a powerful technique for assessing the viscoelastic properties of materials, providing critical insights into their performance under various conditions. This study develops a theoretical framework for DMA in material selection for high-performance engineering applications. The framework integrates fundamental principles of DMA with practical considerations for selecting materials that meet the demanding requirements of advanced engineering fields, including aerospace, automotive, and electronics. Theoretical aspects of DMA, such as storage modulus, loss modulus, and damping ratio, are explored in detail, illustrating how these parameters correlate with material performance, durability, and stability under dynamic loading conditions. The framework emphasizes the importance of understanding the temperature, frequency, and strain rate dependence of material behavior in predicting their suitability for specific applications. The study also examines the role of DMA in identifying phase transitions, such as glass transition and crystallization, which are crucial for assessing material performance in environments with fluctuating thermal and mechanical stresses. Furthermore, the framework incorporates data from experimental DMA studies, applying these results to real-world engineering scenarios to demonstrate the utility of DMA in material selection. The theoretical framework proposes a multi-criteria decision-making (MCDM) approach for integrating DMA results with other material properties, such as strength, toughness, and fatigue resistance, to provide a holistic material selection process. Case studies are included to showcase the practical application of the framework in the selection of polymers, composites, and metals for high-performance engineering applications. By bridging the gap between DMA theory and material selection, this study contributes to the development of more efficient, reliable, and durable materials for critical engineering applications.
Effect of BMI, age, and gender on thyroid profile and the distribution of thyroid dysfunction in healthy Iraqi adults
Authors: Mayyada Bassim Rasul Aldbagh
Published: February 2025

This study aimed to investigate the relationship between thyroid hormone, body mass index, age and gender in an Iraqi population sample of 177 healthy individuals. Results: The study showed that the majority of participants were female (89.3%) compared to males (10.7%). A significant proportion of the total participants were found to be obese (57.1%). We also found that older adults had higher levels (p = 0.011) of thyroid-stimulating hormone (TSH) while there was no significant relationship between T4 (0.271) and T3 (0.537) and age. Women were found to have higher levels (p = 0.034) of thyroid-stimulating hormone (TSH) and lower levels of active thyroid hormones (T4 (p < 0.001) and T3 (p = 0.006)) compared to men. We also found that TSH levels were significantly and gradually increased in overweight and obese individuals compared to normal individuals, and the highest increase in TSH levels was found between the normal weight and obese groups (p < 0.001). While total T3 and total T4 were found to decrease gradually and significantly, the highest decrease in total T3 (p < 0.007) and total T4 (p < 0.011) levels was observed between the normal weight and obese groups. Our results also showed that BMI was the best predictor of thyroid hormone levels (p = 0.000) when using the ROC curve, with an area under the curve (AUC) of 0.805, followed by gender (p = 0.002) with an AUC value of 0.719. However, age did not appear to have any effect on the levels of the thyroid hormones under study (p = 0.063). Therefore, we focused on studying the relationship between obesity and hypothyroidism, where the association was positive with a value of 25.134, and individuals with hypothyroidism were more likely to be overweight (30.0%) or obese (70.0%). Conversely, individuals with hyperthyroidism were less likely to be obese (0.0%). Conclusion: These results suggest that factors such as obesity and gender play an important role in regulating thyroid function and emphasize the need for further studies to understand this relationship more deeply. These findings may help in developing better diagnostic and therapeutic strategies for thyroid disorders, especially in women and those with obesity. Regular thyroid screening is recommended for all individuals regardless of their health status, especially those with specific risk factors.
The Myth of Osiris in William Golding’s Lord of the Flies and the Inadequacy of Scientific Humanism
Authors: Soskic Radoje V.
Published: February 2025

This paper explores William Golding’s Lord of the Flies (1954) through the lens of the author’s profound interest in ancient Egypt and the Osiris myth, as articulated in his travelogue An Egyptian Journal. Golding’s fascination with Plutarch’s account of the Osiris myth provides insights into his understanding of the inherent flaws in human nature. Golding’s technical mastery in Lord of the Flies allows for multiple interpretations, with critics suggesting an Osirian reading that unveils the darker aspects of human nature. The menacing beast on the island, akin to Set in Egyptian mythology, serves as a symbolic representation of war and disharmony. Golding’s deliberate use of mythological elements, such as the snake-like beast and the association with Osiris and Set, provides a framework for understanding the descent into savagery on the island. The paper draws parallels between Osiris and Jack, noting shared traits and the thematic representation of conflict and power struggles. Further, it explores the characters of Ralph, Piggy, and Simon, relating them to aspects of Osiris’s nature and reflecting on the contemporary dissociation of sensibility. In conclusion, the paper delves into the religious vacuum of the modern world, drawing parallels between Golding’s critique and the perspectives of thinkers like T. S. Eliot, Martin Heidegger, George Steiner, and Friedrich Nietzsche. Golding’s portrayal of Piggy’s flaws serves as a commentary on the inadequacy of scientific humanism, highlighting the need for synthesising scientific and spiritual perspectives to address the complexities of human nature.
Aesop’s The Fox and the Grapes: A Socio-Linguistic and Sociological Study of Its English Adaptations
Authors: Andrews Punitha , S. S. Thakur
Published: February 2025

This paper examines the linguistic and sociocultural evolution of Aesop’s The Fox and the Grapes through four significant English translations spanning the 15th to 20th centuries. Through comparative analysis of adaptations by William Caxton (1484), Samuel Croxall (1722), Thomas James (1848), and V.S. Vernon Jones (1912), the study reveals how translation choices reflect changing social contexts, educational priorities, and literary sensibilities. The analysis demonstrates how each translator’s linguistic and narrative strategies were shaped by factors including literacy rates, pedagogical philosophies, and cultural values of their respective eras. While Caxton’s medieval version emphasizes direct moral instruction, later adaptations show increasing sophistication in storytelling techniques and psychological depth, culminating in Vernon Jones’s nuanced early 20th-century interpretation. The study particularly focuses on the sociolinguistic aspects of translation, examining how vocabulary choices, syntactical structures, and narrative techniques evolved to meet the changing needs of their audiences. Furthermore, it explores the broader sociological implications of these adaptations, considering how they reflect and respond to contemporary social, political, and educational developments. This diachronic examination illuminates not only the fable’s remarkable adaptability but also the complex interplay between translation, social change, and literary evolution across centuries of English literary history.
Terror Narratives in Contemporary Literature: Analyzing Complexity, Conflicting Ideas, Challenges, and Suggesting Future Directions in Ian McEwan’s Saturday
Authors: Barki Soumaya , Bessedik Fatima Zahra
Published: February 2025

This study offers a distinct perspective on the portrayal of terror in Ian McEwan’s Saturday, focusing on the interplay between dominant neo-Orientalist and counter-narrative discourses. Neo-Orientalism refers to the contemporary revival of classical Orientalism, based on “good” vs. “evil” binary understandings. The research employs an interdisciplinary approach, integrating Edward Said’s discourse analysis of Orientalism with postmodern perspectives through close textual analysis. It investigates how being situated within both dominant and counter-narratives elucidates the moral and ethical dilemmas and contradictions inherent in the depiction of the “Other,” revealing the chaotic situation of the post-9/11 world characterized by uncertainty, anxiety, trauma, and helplessness, as well as the broader context of postmodern chaos. Through the examination of the influence of media on public perception and narrative framing, the study reveals how these elements shape McEwan’s depiction of the issue. In essence, this study calls for transmodern perspectives, promoting a cosmopolitan and interconnected understanding of terror that transcends cultural dualities and acknowledges the complex realities often eclipsed in postmodern narratives.
Responsabilidad contractual y extracontractual: la situación doctrinal en España.
Authors: Del Olmo García Pedro
Published: February 2025

Este trabajo pretende ofrecer una descripción clara del confuso debate doctrinal en España acerca de las relaciones entre responsabilidad contractual y responsabilidad extracontractual. Para ello, se toma como punto de partida la observación, destacada en Derecho comparado, de que la manera de plantear esas relaciones viene determinada por las características básicas del sistema de responsabilidad por daños extracontractuales existente en cada país. Esas mismas características determinan también la manera de identificar las áreas o zonas que son significativas para plantear correctamente el estudio de las relaciones entre ambos tipos de responsabilidad (las llamadas «zonas de solapamiento y zonas grises», frente a la llamada «zona mixta o fronteriza»). Esas dos ideas, permiten identificar en el debate español dos posiciones teóricas extremas o puras (la llamada regla non cumul de la tradición francesa y la regla de la opción, que se corresponde mejor con las características de los sistemas de tradición germánica), frente a las cuales, se pueden describir algunas posiciones intermedias. Esas posiciones intermedias combinan –de variadas formas– los elementos de las teorías extremas o puras. Entender esas extrañas combinaciones y atender al ámbito de aplicación de las reglas que se proponen creo que es lo permitirá explicar más claramente el oscuro debate doctrinal existente entre nosotros.
SENTENCIAS. A cargo de: Antonio CABANILLAS SÁNCHEZ; colaboran
Authors: Cabanillas Sánchez Antonio
Published: February 2025

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Discussion of the public interest in arthroscopy based on the Baidu index and its implications for nursing care
Authors: Deng Jia-Li , Yang Kai , Zhang Shuai , Wang Bin , Zhang Li , Zhao Xia
Published: February 2025

BACKGROUND

Despite the widespread application of big data in topic analysis, the public’s attention and nursing requirements for arthroscopy remain inadequate.

AIM

To understand netizens’ concerns and spatial distributions regarding arthroscopy and to provide customized nursing strategies.

METHODS

The Baidu index was employed to gather and analyze the search index, demand graph, keyword popularity, and regional distribution data for the keywords “arthroscopy,” “knee arthroscopy,” and “arthroscopy surgery” from 2018 to 2023.

RESULTS

A total of 254692 items of information were searched for these keywords, with 59.86% from mobile terminals. Netizens’ interest in arthroscopy showed a fluctuating pattern, which was consistent with fluctuations in the elasticity coefficient, and was primarily concentrated in the provinces of Guangdong, Jiangsu, and Shandong.

CONCLUSION

The Baidu index provides new avenues for exploring public demand for arthroscopy. Nursing personnel can utilize these data to develop more precise health education plans and guidance, enhancing the quality and satisfaction of patient care.
Novel association between chronic obstructive pulmonary disease and osteoporosis: A prospective cross-sectional study
Authors: Gao Rong , Zeng Jian-Kang , Yang Kai , Wang Ping , Zhou Sheng
Published: February 2025

BACKGROUND

Chronic obstructive pulmonary disease (COPD) is a progressive respiratory condition often associated with a high incidence of osteoporosis. Studies indicate that patients with COPD present with a significant decrease in bone mineral density (BMD), potentially related to inflammation and corticosteroid use.

AIM

To investigate the relationship between BMD and lung function, mainly the forced expiratory volume in the forced expiratory volume in 1 second (FEV1)/ forced vital capacity percentage (FVC%), in patients with COPD using quantitative computed tomography (QCT).

METHODS

This prospective cross-sectional study included 85 patients with COPD treated at Gansu Provincial People's Hospital. Exposure variables included lung function parameter (FEV1/FVC%), age, sex, body mass index, smoking status, tea-drinking habits, and physical activity. BMD was measured using QCT. Linear regression and generalized additive models were employed to analyze the relationship between exposure variables and BMD.

RESULTS

Linear regression analysis revealed a significant positive relationship between BMD and FEV1/FVC% (β = 0.1, 95% confidence interval [CI]: 0.1-0.1; P < 0.0001). Non-linear analysis identified a unique BMD breakpoint of 128.08 mg/cm³. Before the breakpoint, BMD was significantly positively correlated with FEV1/FVC% (β = 0.245; P = 0.0019); while after the breakpoint, the relationship was negative and showed no statistical significance (β = -0.136; P = 0.0753). This finding underscores the critical role of BMD in COPD management and highlights the importance of individualized clinical interventions in improvement of lung function and overall health status in patients.

CONCLUSION

There is a complex non-linear relationship between BMD and lung function in patients with COPD, highlighting the importance of monitoring change in bone density during the management of COPD.
The impact of positive psychology on language teachers in higher education
Authors: Lo Noble , Punzalan Christopher
Published: February 2025

This study investigates how Positive Psychology (PP) techniques might enhance the well-being of English language teachers working in East Asian higher education settings. Positive psychology programs to support teacher well-being have been rolled out across many institutions, but evaluation of their impact is lacking. Online focus groups were conducted with 86 English language teachers (70% female) from institutions in China, Hong Kong, Japan, South Korea, and Thailand. Participants had completed at least one hour of training on mindfulness and gratitude practices, and two core PP interventions designed to improve resilience and emotional well-being. The focus groups were facilitated by a trained qualitative researcher with expertise in Positive Psychology, who encouraged participants to reflect on their experiences with PP techniques and their perceptions of the strategies most beneficial to their personal and professional growth. Thematic analysis of the data revealed several key themes, including the role of PP in fostering resilience, improving stress management, and enhancing professional relationships. Teachers highlighted gratitude and mindfulness practices as effective in maintaining a sense of purpose and creating positive classroom environments. The findings underscore the potential of PP interventions to significantly enhance teacher well-being in higher education settings. These results are discussed in relation to their implications for designing culturally relevant and institutionally tailored PP programs to better support educators.
Pemberian Makanan Tambahan dan Edukasi Pemanfaatan Tanaman Obat Tradisional Dalam Upaya Meningkatkan Status Gizi Anak Guna Mencegah Stunting di Kota Kupang
Authors: Pua Upa Muhamad Satria Mandala , Kapitan Lely A.V. , Wanti Wanti , Irfan Irfan
Published: February 2025

Stunting merupakan masalah gizi yang disebabkan oleh kekurangan asupan gizi dalam jangka panjang, yang menyebabkan gagal tumbuh pada anak balita. Indonesia memiliki prevalensi stunting tertinggi di Asia Tenggara, mencapai 37,2%, dan pemerintah menargetkan penurunan angka stunting menjadi 14% pada tahun 2024, dengan upaya konvergensi lintas sektoral di berbagai sektor. Tujuan dari kegiatan pengabdian masyarakat ini adalah untuk memberikan bantuan kepada keluarga yang membutuhkan penanganan kesehatan anak penderita stunting dan gizi kurang. Metode yang digunakan adalah pemberian PMT selama 90 hari kepada anak asuh dan penyuluhan mengenai pemanfaatan tanaman obat tradisional kepada orang tua anak yang berisiko mengalami stunting. Hasil dari kegiatan ini menunjukkan adanya peningkatan signifikan pada perkembangan anak, yang tercermin dari kenaikan berat badan, tinggi badan, dan lingkar lengan atas. Selain itu, terdapat peningkatan pengetahuan orang tua mengenai pemanfaatan tanaman obat tradisional dalam penanganan stunting. Kesimpulannya, pemberian PMT dan edukasi mengenai tanaman obat tradisional terbukti efektif dalam meningkatkan status gizi anak dan mengurangi risiko stunting. Kami menyarankan agar kegiatan serupa dapat diperluas ke wilayah lain dan dilakukan secara berkelanjutan untuk mencapai target penurunan prevalensi stunting yang lebih rendah di masa mendatang.
Evaluasi Status Kesuburan Tanah pada Lahan Tanaman Nilam di Desa Karya Mulya Kecamatan Kulisusu Barat Kabupaten Buton Utara
Authors: Azza Radi Khairul , Ginting Sahta , Resman Resman , Darwis Darwis , Alam Syamsu , Namriah Namriah
Published: February 2025

Kesuburan tanah adalah kemampuan tanah untuk menyediakan unsur hara dalam jumlah berimbang untuk pertumbuhan dan produksi tanaman. Tanah yang diusahakan untuk bidang pertanian memiliki tingkat kesuburan yang berbeda-beda. Pengelolaan tanah yang tepat merupakan faktor penting dalam menentukan pertumbuhan dan hasil tanaman yang diusahakan. Penelitian ini bertujuan untuk mengevaluasi status kesuburan tanah dan merekomendasikan arahan pemupukan untuk tanaman nilam di Desa Karya Mulya, Kulisusu Barat, Buton Utara. Penelitian ini dilaksanakan pada bulan Desember 2022 sampai dengan Februari 2023. Metode yang digunakan dalam penelitian ini yaitu metode survei bebas berdasarkan lokasi pertanaman nilam. Pengambilan sampel dilakukan pada kedalaman 0-20 cm. Sampel yang diambil dianalisis di laboratorium untuk menilai pH, C-organik, P-tersedia, K-tersedia, KTK, dan KB. Hasil Penelitian menunjukkan bahwa pH tergolong agak masam dengan nilai 6,1-6,3, C-organik rendah sampai sedang dengan nilai 1,04-1,58%, P-tersedia rendah dengan nilai 5,98-7,59 ppm, K-tersedia rendah sampai dengan sedang dengan nilai 0,29-0,42 me 100 g⁻¹, KTK sedang dan tinggi dengan nilai 19,74-25,23 me 100 g⁻¹, KB rendah sampai dengan sedang dengan nilai 38,68-43,61%. Berdasarkan hasil penilaian sifat-sifat kimia tanah maka dapat disimpulkan bahwa tingkat kesuburan tanah di lokasi penelitian termasuk rendah. Diperlukan upaya pemupukan untuk meningkatkan kesuburan tanah pertanaman nilam dengan memperhatikan aspek tepat dalam pemupukan
The Impact of the Indonesian Dialect in Londo Kampung's Video on Language Attitudes: A Sociolinguistic Study
Authors: Asroriyah Atik Muhimatun , Rohmah Nazma Ishmaranti , Suwarni Titi , Nabila Zulfa
Published: February 2025

This study investigates the influence of the Indonesian dialect used in Londo Kampung’s videos on viewers’ language attitudes, highlighting the interaction between local dialects and English in digital media. The urgency of this research lies in understanding how local linguistic identities adapt and persist in English-dominated communication contexts, an issue increasingly relevant in the globalized era. Using a qualitative research design, this study analyzes linguistic features in selected videos through Howard Giles’s Communication Accommodation Theory, focusing on how vocabulary and pronunciation are tailored to diverse audiences. The analysis reveals a pattern of convergence, where speakers adjust their language to align with interlocutors, fostering mutual understanding and enhancing audience engagement. These findings contribute to sociolinguistics by demonstrating how local dialects can thrive in global contexts while influencing perceptions of identity and language attitudes. Furthermore, this study provides a foundation for future research on multilingual interactions in digital media and the preservation of local languages in the face of globalization
Exploring the Integration of Artificial Intelligence in English Language Teaching: Trends, Challenges, and Pedagogical Implications
Authors: Wafa Zaenul , Sulistyaningsih Eka Fanti
Published: February 2025

The integration of Artificial Intelligence (AI) in English Language Teaching (ELT) has significantly transformed teaching methodologies and enhanced learning experiences. This study explores AI’s role in ELT, focusing on current trends, challenges, and pedagogical implications through a systematic literature review. The data sources used was academic journal, book references and international journals. While the data collection method comprised document analysis and the data analysis technique employed Miles & Huberman Model 1994. The key findings reveal that AI promotes adaptive and interactive learning environments, motivating students and reducing language learning anxiety. However, challenges remain, including ethical concerns such as data privacy, potential over-reliance on AI, and its inability to replicate human emotional understanding and creativity. Furthermore, the study highlights the need for teacher professional development to ensure the effective and ethical use of AI in classrooms. AI’s pedagogical implications include fostering personalized learning experiences, enhancing learning outcomes, and enabling efficient assessments. Although AI offers numerous benefits, its integration in ELT should be balanced, considering the ethical and emotional aspects of education
Penerapan Metode Field trip untuk Meningkatkan Keterampilan Menulis Cerpen Peserta Didik kelas VII SMP PKBM Darul Hikam
Authors: Malik Ilham , Zuhdi Rasyid
Published: February 2025

Kemampuan menulis salah satu keterampilan yang sangat di butuhkan oleh para siswa kalas VII pada bidang pelajaran Bahasa Indonesia. Salah satu pelajaran Bahasa Indonesia yaitu menulis cerita pendek. Adapun salah satu cara untuk meningkatkan kemampuan menulis cerita pendek yakni dengan melalui metode-metode, salah satu metode yang dapat kita gunakan yaitu meted field trip. Dalam penelitian ini, kunjungan lapangan dilakukan dalam dua siklus dengan empat tahap masing-masing, yaitu (1) perencanaan aktivitas; (2) pelaksanaan aktivitas; (3) observasi aktivitas; dan (4) refleksi aktivitas. Setiap siswa kelas VII PKBM Darul Hikam SMP di Kuwarasan Kebumen adalah subjek penelitian. Dengan bantuan guru bahasa Indonesia, penelitian ini dilakukan. Teknik wawancara, dokumentasi, observasi, dan evaluasi atau tes adalah metode pengumpulan data yang digunakan. Hipotesis tindakan, “Dalam pembelajaran Bahasa dan Sastra Indonesia, jika metode perjalanan penelitian digunakan, kegiatan belajar siswa kelas VII PKBM Darul Hikam Kuwarasan Kebumen SMP akan meningkat”, dapat diterima berdasarkan hasil analisis penelitian. Metode kunjungan lapangan bisa meningkatkan hasil belajar siswa selain meningkatkan aktivitas belajar siswa
Sistem Rekomendasi Makanan Kucing Menggunakan Metode Content-Based Filtering
Authors: Kumarahadi Brigitta Melati , Kumarahadi Yovita Kinanti , Ridhwanullah Dziky
Published: February 2025

Kucing adalah hewan peliharaan yang populer karena tingkah laku dan bentuk fisiknya yang menggemaskan. Kucing dipelihara dengan membutuhkan perhatian khusus, termasuk dalam hal pemberian makanan. Pemberian makanan yang sesuai dengan kebutuhan kucing penting untuk pertumbuhan optimal dan pencegahan dari masalah kesehatan. Sistem rekomendasi makanan kucing adalah solusi yang tepat bagi pemilik kucing untuk memilih makanan yang sesuai dengan kebutuhan hewan peliharaan mereka. Sistem rekomendasi merupakan sistem yang dirancang untuk membantu pengguna mendapatkan rekomendasi item yang relevan dan bermanfaat. Content based filtering merupakan sistem rekomendasi yang memberikan saran berdasarkan preferensi pengguna terhadap beberapa item, antara lain usia, varian, merk, rasa, ukuran, dan harga. Data yang digunakan yaitu data produk makanan kucing dengan merk whiskas, cat choize, Me-O, dan royal canin yang ada di Pet Shop Colomadu. Nilai rekomendasi dihitung berdasarkan nilai cosine similarity antara dua item. Dilakukan dua pengujian sistem, yaitu pengujian fungsionalitas (blackbox) dan pengujian validitas. Pengujian fungsionalitas dilakukan dengan memastikan fungsi sistem berjalan dengan baik dan pengujian validas dilakukan dengan cara membandingkan antara hasil rekomendasi yang dihitung secara manual dengan rekomendasi yang dihasilkan sistem. Hasil pengujian fungsionalitas menunjukkan sistem dapat berfungsi dengan baik. Hasil pengujian validitas menunjukkan sistem valid dan dapat digunakan dengan tepat. Hal tersebut dapat disimpulkan bahwa sistem rekomendasi makanan kucing dengan menggunakan metode content-based filtering dapat digunakan untuk merekomendasikan makanan kucing yang tepat.
Tuning PID Control using GEO Algorithm for Dual Axis Sun Tracker System
Authors: Fiddina Qori' Afiata , Pramujati Windya Harieska , Buana Arya Sula Cakra
Published: February 2025

Solar energy utilizes sunlight to produce electricity via photovoltaic (PV) panels, which act as a medium for capturing solar energy. PV panels are widely used for efficiency, cost-effectiveness, and scalability. Common challenges in solar energy capture include geographical location, weather conditions, and fluctuations in the direction of incoming sunlight. So, a control system is important. In countries with adequate sunlight, photovoltaic (PV) panels are designed with control systems that track the movement of the sunlight. Given the continuous motion and changing position of the sun, the development of advanced dual-axis solar trackers with intelligent control systems remains an ongoing area of research. Control methods used by sun tracker system is Proportional-Integral-Derivative (PID) with auto-tuning. For increase performance PID control is important to optimize PID at sun tracker sytem dual axis, simulated by MATLAB Simulink. GEO algorithm is optimization method using metaheuristic. GEO is founded on the intelligent adjustments on attack propensity and cruise propensity that golden eagles perform while searching for prey and hunting. In this study, the GEO algorithm will be used to optimize PID with a dual-axis solar tracker simulated by MATLAB Simulink. This research compares three model designs: uncontrolled, PID control using auto-tuning, and PID using GEO tuning (PID-GEO). The result of the simulation, we get comparison performance from three model designs is PID-GEO has the fastest settling time, smallest overshoot and undershoot of all model designs. Where the overshoot horizontal axis is 11. 372% and the undershoot is 0%, that also at the vertical axis, the overshoot is 11. 559% and undershoot is 0%. It can be concluded that PID-GEO has the best performance compared to PID auto-tuning and uncontrolled. So, this research concludes that GEO can be used to optimize PID control
Perbandingan Pengujian Kandungan Aspal: Metode Centrifuge vs Reflux
Authors: Fitri Insira insani , Zebua Delfi Kurnia , Febiola Ollga
Published: February 2025

Penelitian ini bertujuan untuk membandingkan hasil pengujian kadar aspal menggunakan Metode Centrifuge dan Metode Reflux pada campuran Asphalt Concrete-Binder Course (AC-BC). Penelitian dilakukan secara eksperimental dengan mengambil sampel dari Asphalt Mixing Plant (AMP) di Kabupaten Kerinci. Hasil pengujian menunjukkan bahwa Metode Reflux menghasilkan kadar aspal rata-rata sebesar 6,059%, lebih akurat dan mendekati kadar aspal asli dibandingkan Metode Centrifuge dengan rata-rata 5,986%. Perbedaan ini disebabkan oleh tingkat presisi alat dan proses pengujian. Meskipun Metode Centrifuge lebih cepat, hasilnya kurang konsisten dibandingkan Metode Reflux. Faktor seperti human error dan kondisi alat juga memengaruhi hasil pengujian. Metode Reflux direkomendasikan untuk pengujian yang memerlukan akurasi tinggi, meskipun memerlukan waktu lebih lama dan potensi risiko lebih besar. Penelitian ini diharapkan menjadi referensi bagi pengendalian mutu campuran beraspal di laboratorium maupun lapangan
Peran Pendidik PAUD dalam Pembentukan Karakter Anak Usia Dini di Era Teknologi Digital
Authors: Erita Sukma , Witalia Witalia , Ramadanti Tifa
Published: February 2025

Penelitian ini bertujuan untuk menganalisis peran pendidik dalam pembentukan karakter anak usia dini di era teknologi digital di Kota Tenggarong. Pendekatan dilakukan dengan kualitatif deskriptif, data diperoleh melalui wawancara mendalam dan observasi terhadap pendidik PAUD yang berperan dalam pembentukan karakter anak usia dini di era teknologi digital. Hasil penelitian menunjukkan bahwa pendidik dapat mengoptimalkan penggunaan teknologi digital yang diarahkan secara positif untuk mendukung pembentukan karakter anak. Sementara itu, pendidik PAUD juga memiliki tanggung jawab terhadap pembentukan karakter anak usia dini diantaranya menjadi model teladan, memberikan pengawasan dan bimbingan, serta mengintegrasikan nilai-nilai karakter dalam pembelajaran. Selain itu, terdapat beberapa jenis pembentukan karakter pada anak usia dini, diantaranya karakter religius, disiplin dan tanggung jawab, sosial dan kepedulian, kemandirian dan kreativitas, serta etika digital. Kolaborasi dengan orang tua juga menjadi elemen penting dalam membentuk karakter anak usia dini. Dengan demikian, artikel ini juga bertujuan untuk mengidentifikasi dan mengeksplorasi peran yang dapat dilakukan untuk membangun karakter anak melalui pemanfaatan teknologi digital. Sejalan dengan perkembangan teknologi, selain tantangan, juga terdapat peluang antara lain membangun lingkungan belajar yang mendukung dengan memanfaatkan teknologi secara kreatif. Penelitian ini menyimpulkan bahwa pendidik memiliki peran kunci dalam membentuk karakter anak usia dini, terutama dalam menghadapi tantangan era teknologi digital. Implikasi dari temuan ini menegaskan pentingnya menciptakan lingkungan belajar yang mendukung dan integrasi nilai karakter dalam pendidikan sebagai langkah strategis untuk memastikan anak-anak berkembang dengan baik secara moral, etika, dan sosial
Artificial Intelligence: A Marvelous Creation at the Service of a Passion for Ignorance
Authors: S Zabalza
Published: February 2025

Good afternoon. I am deeply grateful for the invitation to this
event. I would like to explore the topic of artificial intelligence by first
addressing a fundamental question: What is intelligence? Moreover,
I aim to examine how the concept of intelligence might be
understood from a psychoanalytic perspective.
If we define intelligence as the ability to sol
Perovskite Thin Films Solar Cells: The Gas Quenching Method
Authors: Azhar Maria , Yalcinkaya Yenal , Cuzzupè Daniele T. , Abebe Temitmie Yekitwork , Haider Muhammad Irfan , Schmidt-Mende Lukas
Published: February 2025

Review
Perovskite Thin Films Solar Cells: The Gas Quenching Method

Maria Azhar, Yenal Yalcinkaya, Daniele T. Cuzzupè, Yekitwork Abebe Temitmie, Muhammad Irfan Haider and Lukas Schmidt-Mende *

Department of Physics, University of Konstanz, 78457 Konstanz, Germany
* Correspondence: lukas.schmidt-mende@uni-konstanz.de

Received: 18 November 2024; Revised: 6 January 2025; Accepted: 6 February 2025; Published: 10 February 2025

Abstract: Perovskite solar cells (PSCs) are emerging as a promising technology for next-generation solar energy due to their high efficiency and cost-effectiveness. A critical step in the production of PSCs is the deposition of the perovskite absorber layer, the quality of which has a direct impact on the performance of device. Traditionally, quenching with an antisolvent is the main technique for the crystallization of perovskite film. However, gas quenching, an alternative approach in which pressurized gases (typically N2) are used to supersaturate the perovskite precursor solution, has shown significant advantages. In contrast to quenching with antisolvents, gas quenching is more environmentally friendly, reduces chemical consumption, improves reproducibility, and offers better scalability for large-scale production. This review examines recent advances in gas quenching to produce high-quality perovskite films and compares the results with those achieved with antisolvent quenching. We highlight the performance benefits, environmental impact, and commercial scalability of gas quenching, and emphasize its potential to become the preferred method for industrial PSC production.
Contribuições de resíduos orgânicos para o estabelecimento de Stylosanthes capitata em solo degradado
Authors: Fuzeto Isabela Marega Rigolin , Maltoni Katia Luciene , Cassiolato Ana Maria Rodrigues
Published: February 2025

Resíduos orgânicos podem melhorar a fertilidade de solos degradados e auxiliar no restabelecimento da vegetação. Este trabalho foi estruturado para avaliar a contribuição de resíduos no condicionamento químico de um solo degradado e no estabelecimento do Stylosanthes capitata. O experimento foi conduzido em condição de cultivo protegido, em delineamento experimental inteiramente casualizado, em esquema fatorial 4 x 4 x 2, com 3 repetições por tratamento e 2 plantas por repetição (vasos com 10 kg de solo). Os resíduos, macrófitas aquáticas (MAC) e lodo de esgoto (LOD) foram adicionados ao solo nas doses 0, 10, 20 e 30 t ha-1. A cinza do bagaço da cana-de-açúcar (CZA) foi incorporada ao solo nas doses 0 e 20 t ha-1, dez dias antes do LOD, da MAC e das sementes de S. capitata. Transcorridos 120 dias da semeadura, o solo foi analisado para fertilidade e as plantas para altura, massa fresca e seca da parte aérea e do sistema radicular e volume de raízes. Os resíduos CZA, LOD e MAC elevaram pH, teores de matéria orgânica, fósforo e cálcio, facilitando o estabelecimento da planta, com destaque para a dose de 20 t ha-1 para LOD e MAC. Assim, pode-se recomendar o uso destes resíduos tanto como condicionantes químicos do solo como facilitadores no estabelecimento do S. capitata.
Clinical Outcome of Lower Trapezius Muscle Transfer in Birth Brachial Plexus Palsy
Authors: Zargarbashi Ramin , Milan Nesa , Rabiee Hamid , Baghbani Salar , Ebrahimian Mazaher , Wague Aboubacar , Elhassan Bassem
Published: February 2025

Background:

Birth brachial plexus palsy (BBPP) can severely impair shoulder function by restricting external rotation and abduction, often leading to posterior subluxation or dislocation. Progressive shoulder dysplasia, a secondary condition of BBPP, further exacerbates functional disability by limiting shoulder function. Several techniques have been developed to address these challenges, including microsurgery, muscle transfer, and bony procedures. Recent reports on lower trapezius muscle transfer to the infraspinatus footprint demonstrate promising results in restoring shoulder biomechanics in adults. In this study, we aimed to treat patients younger than 7 years with BBPP through lower trapezius muscle transfer without allograft support.

Patients and methods:

Between 2014 and 2018, 15 patients with BBPP and impaired shoulder external rotation and/or abduction (mean age, 22 months; range: 10 to 41 months) underwent lower trapezius muscle transfer surgery at our institution. A glenoid osteotomy was performed in patients without concentric joints, followed by the transfer of the lower trapezius muscle to the footprint of the infraspinatus. Patients were followed for an average of 25 months (range: 14 to 46 months). Outcomes assessed included shoulder external rotation, shoulder abduction, hand-to-mouth, hand-to-back, hand-to-neck, and Mallet scores.

Results:

Significant improvements were observed in hand-to-mouth, hand-to-neck, global shoulder abduction, global shoulder external rotation, and total Mallet scores (P < 0.01). A nonsignificant decrease in hand-to-back was noted (P > 0.05). Both shoulder external rotation and abduction increased significantly (P < 0.01). No complications were reported after the muscle transfer procedure.

Discussion:

Lower trapezius muscle transfer to the infraspinatus footprint markedly improves shoulder external rotation and abduction in children younger than 7 years without adverse effects on daily activities. This procedure is an effective treatment option for patients who present outside the optimal window for nerve transfer.

Level of evidence:

Level IV; Case Series; Treatment Study.
Associated Coalitions of Tarsal Bones: Review of the Literature and Presentation of a Classification
Authors: Vosoughi Amir Reza , Matz Jacob , Rammelt Stefan
Published: February 2025

Associated coalitions of tarsal bones, either unilateral or bilateral, may be classified to developmental or syndromic types. There are no specific patterns for osseous or nonosseous configurations of associated tarsal coalitions. Associated developmental tarsal coalitions can be categorized into dual, threefold, massive, and total tarsal coalitions according to the number and sites of the involved joints. Dual coalitions are more common than other types. Among dual tarsal coalitions, the most frequent combination is talocalcaneal (TC) and calcaneonavicular coalitions, also referred to as double coalition, followed by combination of TC and talonavicular coalitions. The most frequent threefold coalition is the triple coalition, defined as concomitant TC, calcaneonavicular, and talonavicular coalitions. Massive tarsal coalition is defined as a nonsyndromic abnormality with involvement of more than three intertarsal joints or occurrence of a concomitant coalition outside the intertarsal joints, that is, tarsometatarsal joints and/or between metatarsal bases. Total tarsal coalition is the synostosis between all tarsal bones. Syndromic multiple tarsal coalition is a part of a hereditary complex skeletal malformation such as different phocomelia, craniosynostosis, and tarsal-carpal coalition syndromes. This literature review discusses associated coalitions, focusing on anatomical classification, workup, and treatment.
Integrasi Anger Management dalam Meningkatkan Kedisiplinan Santri: Solusi terhadap Tantangan Kedisiplinan
Authors: Agus Abu Hasan , Denis M. Kholilurrohman
Published: February 2025

Penelitian ini mengeksplorasi konsep implemtasi anger manajemen dalam pesantren sebagai solusi untuk mengatasi tantangan emosi negativ. Menggunakan pendekatan kualitatif studi kasus di Pesantren Nurul Jadid asrama daerah syekh Nawawi al-bantani, penelitian ini menyoroti bagaiman penerapan manajemen amarah sebagai landasan utama untukl mencapai kondusifitas lingkungan yang baik dan kedisiplinan. Penelitian ini menggunakan metode kualitatif dengan jenis studi kasus. Studi kasus yang dilakukan dalam penelitian ini bersifat mendalam, berfokus pada perkembangan santri dari perspektif manajemen amarah, yang melibatkan individu, kelompok, organisasi, atau program kegiatan dalam waktu tertentu. Hasil penelitian ini memberikan wawan mendalam tentang manajemen amarah terhadap kedisiplinan santri di pondok pesantren nurul jadid dengan beberapa tahapannya, emungkinkan mereka untuk melanjutkan estafet kedisiplinan di Pondok Pesantren Nurul Jadid secara efektif dan berkelanjutan.
Antibacterial Efficacy of Pure Aloe Vera, Methanol Extract and Gentamicin Against Pathogenic Bacteria
Authors: Keerio Rizwan Ali , Bughio Shamsuddin , Buriro Rehana , Bilawal Muhammad , Jamali Muneer Ahmed , Tariq Mansoor , Jamali Imdadullah , Jamali Nawab Ali , Jamali Fahadullah
Published: February 2025

The Aloe vera plant has been utilized for thousands of years for traditional medicinal reasons, including the prevention of bacterial development. Objectives: To investigate the antibacterial effectiveness of pure Aloe vera and its methanol extract, comparing their efficacy to that of the commonly used antibiotic gentamicin. Methods: 50 broiler meat samples were collected from the butcher markets of Tandojam. Isolation and identification of the microorganisms, the minimum inhibitory concentration (MIC) was done on 96 well plates. For this purpose, similar concentrations of pure Aloe vera, its methanol extract and gentamicin were to evaluate their minimum inhibitory concentration against Staphylococcus aureus and Escherichia coli. The minimum inhibitory concentration was tested based on the transparency and turbidity of the medium. Results: Out of 50 meat samples identified 19 (38%) were found positive for Staphylococcus aureus and 24 (48%) were positive for Escherichia coli. The mean susceptibility value of Staphylococcus aureus was noticed at 10, and 20µg/µl for pure Aloe vera, 20, 10, 5µg/µl for methanol extract and 20, 10, 5, 2.5, 1.25µg/µl for gentamicin. While the mean concentration at which Escherichia coli growth inhabited was 20 µg/µl and 20, 10 µg/µl, and 20, 10, 5, 2.5, 1.25, 0.625, 0.312 µg/µl for pure Aloe vera, its methanol extract and gentamicin, respectively. Conclusions: It was concluded that all treatments i.e., pure Aloe vera, its methanol extract, and gentamicin inhibited the growth of isolated bacterial organisms, but the methanol extract stopped the growth of isolated organisms at lowered concentration in comparison to pure aloe vera.