bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Minat Masyarakat Menggunakan Media Sosial Menggunakan Algoritma C4.5 dan Metode Naïve Bayes
Authors: Panjaitan Nia Putri , Harahap Syaiful Zuhri , Ah Rahma Muti
Published: December 2024

The analysis of public interest using social media in data mining aims to understand user preferences and interests in various topics or products. By analyzing data from social media platforms, such as posts, comments, and interactions, researchers can identify significant interest patterns and trends, which can be used for more effective marketing strategies or product development that suits the public's desires. Common methods used in this analysis are the C4.5 and Naive Bayes algorithms. The C4.5 algorithm builds a decision tree that makes it easy to visualize and interpret the main factors that influence public interest. Meanwhile, Naive Bayes, with its probabilistic approach, classifies data based on existing features, providing fast and accurate predictions. Both methods are applied to process data from social media and produce in-depth insights into user preferences. The results of the analysis show that the prediction and classification of public interest have good accuracy, with the comparison result values showing very satisfactory performance. Both are able to identify and classify interests accurately, utilizing the advantages of each method to provide a better understanding of what is interesting to the public on social media.
Analisis Pola Pembelian Melalui Ponsel Menggunakan Algoritma Apriori dan Fp–Growth Pada Millenium Ponsel
Authors: Andriani Nur Putri , Harahap Syaiful Zuhri , Irmayanti Irmayanti
Published: December 2024

The purpose of this research is to understand the main factors that influence consumer decisions in purchasing the device. By exploring information about consumer preferences, needs, and behavior, this study seeks to identify purchasing trends and understand how aspects such as mobile phone features, price, and brand influence consumer choices. The main objective of this study is to provide in- depth insights to technology industry players so that they can develop more effective and relevant marketing and product strategies to meet dynamic market needs. To achieve this goal, this study uses the Apriori and FP-Growth methods, which are data mining algorithms that are effective in finding associations and patterns in transaction data. The Apriori method focuses on identifying the frequency of occurrence of itemsets and forming association rules based on support and confidence values, while FP- Growth uses a tree approach to store and extract frequently occurring patterns more efficiently. Both methods allow for in-depth analysis of mobile phone purchase data, so that complex patterns can be revealed more accurately and quickly. The results of this study indicate that there is a very clear mobile phone purchasing pattern among consumers, with confidence values reaching 90% for some association rules. For example, consumers who purchase phones with AMOLED displays tend to also choose large battery capacities from certain brands. These patterns indicate strong and consistent preferences across consumer groups, providing manufacturers with opportunities to target specific market segments with tailored product offerings. These findings not only provide valuable insights into consumer behavior but also help companies optimize their marketing strategies and increase their competitiveness in the technology industry.
Simulasi Kinerja Karyawan di Kantor Pertanahan Labuhanbatu Menggunakan Algoritma C4.5
Authors: Nasution Khodijah , Masrizal Masrizal , Harahap Syaiful Zuhri
Published: December 2024

Employee performance analysis using the C4.5 algorithm in data mining aims to identify and classify employees based on their performance. The analysis process includes several stages, namely data analysis, preprocessing, model design in data mining, and method evaluation. From 47 sample data analyzed, the results show that 40 employees have good characters, while 7 employees have bad characters. Good employee characters are characterized by punctuality and high discipline in carrying out their duties. Conversely, bad employee characters are characterized by unpunctuality and low discipline, which have a negative impact on productivity and efficiency in the workplace. The results of this classification help identify areas that require more attention and intervention to improve overall employee performance. Model evaluation is carried out using two widgets, namely Test and Score and Confusion Matrix. The evaluation results of these two widgets show perfect accuracy of 100%. Meanwhile, the Confusion Matrix widget shows that all predictions are in accordance with the actual data without any errors in classification. These results confirm that the C4.5 algorithm is very effective and accurate in classifying employee performance. The perfection of the evaluation results shows that the C4.5 algorithm is very suitable for use as a classification model in employee performance analysis. The 100% accuracy of both widgets indicates that this algorithm is not only able to predict correctly but also consistently in various evaluation tools.
LEGAL PROTECTION FOR FOREIGN WORKERS IN THE CASE OF UNILATERAL TERMINATION OF EMPLOYMENT BEFORE THE END OF THE EMPLOYMENT PERIOD
Authors: Lubis Desi Lestari , Abas Muhamad , Rahmatiar Yuniar , Targana Tatang
Published: December 2024

The state holds constitutional responsibility in the field of labor by providing legal protection to ensure legal certainty for individuals involved, particularly in the context of employing foreign labor. However, such protection applies only to foreign workers who meet the legal standing requirements in Indonesia. This research addresses the case of unilateral termination of employment against Stephane Baudoin by PT Origin Resort Lombok. Utilizing a normative juridical method, the findings indicate Baudoin's entitlement to legal recourse due to fulfilling the criteria of legal standing in labor matters. The appellate decision of the Supreme Court confirms PT Origin Resort Lombok's violation of the Job Creation Law. This study aims to contribute to the literature on the protection of foreign workers, focusing on industrial relations disputes and legal safeguards. Keywords: Foreign Workers, Industrial Relations Disputes, Legal Protection
Peran Media Sosial terhadap Pemasaran Rumah Sakit : Systematic Literatur Review
Authors: Hardiyanti Widya Rahma , Sulistiadi Wachyu
Published: December 2024

Latar belakang: Pada era digital saat ini, media sosial telah menjadi bagian dalam kehidupan masyarakat global, termasuk di Indonesia. Lebih dari 170 juta pengguna aktif media sosial, Indonesia menempati posisi ketiga terbesar di dunia dalam hal jumlah pengguna. Platform seperti Instagram, Facebook, TikTok, dan Twitter menjadi saluran utama untuk berbagi informasi, termasuk informasi kesehatan. Rumah sakit di Indonesia semakin menyadari pentingnya memanfaatkan media sosial untuk memperluas jangkauan audiens, membangun citra positif, serta mempromosikan layanan kesehatan. Artikel ini bertujuan untuk mengkaji penggunaan media sosial dalam pemasaran rumah sakit di Indonesia.Metode penelitian: metode yang digunakan adalah metode PRISMA, terhadap artikel-artikel yang diterbitkan antara tahun 2022 hingga 2024. Pencarian artikel dilakukan melalui Google Scholar, dengan kata kunci "sosial media" dan "pemasaran rumah sakit".Hasil: sebanyak 6 artikel menunjukkan bahwa media sosial, terutama platform Instagram dan Facebook, memiliki peran penting dalam membangun hubungan dengan pasien dan meningkatkan visibilitas rumah sakit. Media sosial juga memungkinkan rumah sakit untuk melakukan segmentasi pasar yang lebih efektif berdasarkan data audiens, serta menciptakan brand image yang kuat.Kesimpulan: media sosial telah menjadi alat pemasaran yang efektif bagi rumah sakit di Indonesia. Penggunaan platform digital ini memungkinkan rumah sakit untuk mengembangkan strategi pemasaran yang lebih personal dan responsif, serta membangun reputasi yang positif di mata publik.
Beyond Infection: The Role of Stunting in Tuberculosis Susceptibility and Treatment Outcomes
Authors: Deddy Herman  , Delmi Sulastri
Published: December 2024

Background: Tuberculosis (TB) remains a major global health concern, particularly in developing countries. Stunting, a manifestation of chronic malnutrition, is prevalent in these regions and is increasingly recognized as a significant risk factor for TB. This systematic review aims to comprehensively analyze the impact of stunting on TB susceptibility and treatment outcomes.
Methods: A systematic search of PubMed and ScienceDirect databases was conducted for studies published in the last 10 years, focusing on the relationship between stunting and TB. The PRISMA guidelines were followed for article selection and data extraction.
Results: The review identified a significant association between stunting and increased TB risk. Stunted individuals exhibit impaired immune responses, making them more susceptible to TB infection. Moreover, stunting negatively affects TB treatment outcomes, including increased treatment duration, higher relapse rates, and greater mortality risk.
Conclusion: Stunting is a critical determinant of TB susceptibility and treatment outcomes. Addressing stunting through comprehensive nutritional interventions is crucial not only for reducing the burden of malnutrition but also for enhancing TB prevention and control efforts.
Faculty Community-Engaged Scholars Choosing to Come and Stay: Alignment Between Individual and Institutional Identities and Values
Authors: Ward Elaine , Janke Emily , Wrencher Erica , Goodner Hillary , Mitchell Tania , Hempill Michael
Published: December 2024

As institutions seek to recruit and retain community-engaged scholars, it is important to understand the experiences of faculty who arrive at their new institution and whether those experiences align with their initial perceptions about institutional commitments to and support for community-engaged scholarly work. Do institutional signals that express support for community-engaged scholarship influence faculty members’ choice to work at an institution? Once recruited, how do faculty experiences align with their initial expectations for community-engaged scholarship? This study examines 21 faculty members’ experiences at a single minority-serving university to understand their sense of alignment and the intersections between individual faculty and institutional commitments to equity-centered community engagement. Institutions that highly regard and reward faculty community engaged scholars provide conditions that foster full participation of faculty, students, and communities allowing them to flourish.
The Role of Boundary Spanners in Institutionalizing University–Community Engagement: Insights from a Hostile Setting
Authors: Wahyuni Andi Sri , Málovics György , Müllner András , Fehér Bori , Csernák Janka , Juhász Judit , Frigyik Márta , Matolay Réka , Szerencsés Rita , Bajmócy Zoltán
Published: December 2024

This study examines the role of boundary spanners in institutionalizing university–community engagement (UCE) in higher education institutions (HEIs). Employing autoethnography, we gathered data via reflexive texts and dialogues produced by nine boundary spanners from four UCE units in Hungary. We explore the functions of the boundary spanners in facilitating bottom-up UCE institutionalization processes in a hostile setting not only characterized by (1) transnational academic capitalism, but also (2) a general lack of knowledge of and institutional and/or policy support for UCE and (3) an illiberal political context. We highlight that, within such contexts, boundary spanners often need to undertake multifaceted roles: beyond establishing robust community contacts, they also navigate technical challenges and provide leadership. Also, certain expectations of transnational academic capitalism might also open up spaces for UCE institutionalization within illiberal political settings, although not without challenges and contradictions stemming from the core logic of transnational academic capitalism.
Implementasi standard preparation pada produk fix knife untuk mencegah komplain pelanggan pada produksi massal
Authors: Indra Setiawan  , Wafi Tri Maharani  , Rizki Choiri Fitrianto  , Tria Okta Nur Selfiana
Published: December 2024

Di perusahaan vendor  hanya mengandalkan beberapa dokumen untuk mempersiapkan produksi massal dari proyek yang sedang berjalan. Namun, dalam pelaksanaannya masih ditemukan komplain dari pelanggan. Perusahaan merancang standar yang akan ditetapkan untuk project baru sebelum dilakukan produksi massal. Standard preparation merupakan faktor penting dalam membuat new development produk fix knife untuk mencegah klaim dari pelanggan saat produksi massal. Tujuan penelitian ini adalah mengimplementasikan standard preparation pada fix knife. Metode yang digunakan adalah Production Part Approval Process (PPAP) yang dibuat oleh Automotive Industry Action Group (AIAG). Dokumen PPAP yang akan dibahas meliputi 15 dokumen. Pengontrolan rejection dilakukan pada setiap shift kerja. Dari pengontrolan yang dilakukan akan didapatkan hasil perbandingan antara produk Finish Good dan Not Good (NG). Berdasarkan hasil pengujian selama tiga bulan didapatkan rejection 4% dari dari target 5% dan total keseluruhan produksi sebesar 786 pcs dengan total reject sebanyak 31 pcs. Dengan demikian, metode PPAP berhasil diterapkan produksi massal fix knife sehingga tidak ada klaim dari pelanggan
Russian Utilization of Reflexive Control
Authors: Klarić Darijo , Mandić Josip
Published: December 2024

Russian utilization of reflexive control plays a pivotal role in advancing its foreign policy objectives. This strategic concept involves shaping an adversary's perception and decision-making processes to achieve desired outcomes without direct confrontation. The Russian government employs reflexive control across various domains, including intelligence, strategic communication, and diplomacy. The EU has recognized these manipulative methods and labelled them as Foreign Information Manipulation and Interference (FIMI). This paper endeavors to conduct an in-depth analysis of Kremlin's application of reflexive control to influence decision making processes in Serbia. The study closely examines how Russia successfully manipulated the information landscape to its benefit by understanding and shaping the internal dynamics of its partner and leveraging existing fault lines. By capitalizing on the internal tensions, Russia made Serbia permissive to the reflexive control manipulation and influenced the outcomes in a way that aligns with Kremlin’s own foreign policy objectives. This paper analysis contributes to a better understanding of the intricate dynamics between reflexive control strategies and their impact on the national and international political landscape.
Application of GIS Criminalistics Techniques in the Analysis of Urban Terrorism
Authors: M. Mitrović Ljubomir
Published: December 2024

A common myth about terrorist attacks is that they are random incidents that can occur anywhere in the world. While it is true that such attacks can happen globally, they usually exhibit discernible spatiotemporal patterns that could be analysed using criminalistics techniques, methods, and analytic tools. Numerous studies have shown that analysing the spatial and temporal patterns of terrorist attacks can uncover the modus operandi of terrorist organisations and shed light on their strategic objectives. By identifying the operational methods of specific terrorist groups, it becomes theoretically possible to create models that predict the spatiotemporal dispersion of their movements and actions. Such models can potentially indicate sites of future attacks, including bombings, arsons, assassinations, hijackings, abductions, sabotage, kidnappings, and more.The paper aims to examine and provide a concise explanation of why the application of criminalistic techniques is possible in the prediction of distinct aspects of urban terrorism.
The Influence Of Competence, Work Involvement And Work Ethic On Employee Performance In The Women's Empowerment Office, Child Protection, Population Control And Family Planning Of West Sulawesi Province
Authors: Amir  , Maryadi  , Idris Muhammad
Published: December 2024

This research aims to analyze the influence of competence, work involvement and work ethic on the performance of employees at the Women's Empowerment, Child Protection, Population Control and Family Planning Department of West Sulawesi Province. The research uses aquantitative approach, the data collection method uses a questionnaire with a sample size of 45 people. Data analysis uses multiple linear regression,hypothesis testing is carried out using partial, simultaneous and dominant tests (Beta test).
The research results show that 1) Competency has a positive and significant effect on employee performance, 2) Work involvement has a positive andsignificant effect on employee performance. 3) Work ethic has a positive and significant effect on employee performance, 4) Competence, workinvolvement and work ethic simultaneously have a positive and significant effect on employee performance. 5) The most dominant work involvementvariable influences employee performance at the Women's Empowerment, Child Protection, Population Control and Family Planning Services of WestSulawesi Province
Interplay between creeping fat and gut microbiota: A brand-new perspective on fecal microbiota transplantation in Crohn's disease
Authors: Wang Ying , Liu Jie
Published: December 2024

Inflammatory bowel disease, particularly Crohn's disease (CD), has been linked to modifications in mesenteric adipose tissue (MAT) and the phenomenon known as "creeping fat" (CrF). The presence of CrF is believed to serve as a predictor for early clinical recurrence following surgical intervention in patients with CD. Notably, the incorporation of the mesentery during ileocolic resection for CD has been correlated with a decrease in surgical recurrence, indicating the significant role of MAT in the pathogenesis of CD. While numerous studies have indicated that dysbiosis of the gut microbiota is a critical factor in the development of CD, the functional implications of translocated microbiota within the MAT of CD patients remain ambiguous. This manuscript commentary discusses a recent basic research conducted by Wu et al . In their study, intestinal bacteria from individuals were transplanted into CD model mice, revealing that fecal microbiota transplantation (FMT) from healthy donors alleviated CD symptoms, whereas FMT from CD patients exacerbated these symptoms. Importantly, FMT was found to affect intestinal permeability, barrier function, and the levels of proinflammatory factors and adipokines. Collectively, these findings suggest that targeting MAT and CrF may hold therapeutic potential for patients with CD. However, the study did not evaluate the composition of the intestinal microbiota of the donors or the subsequent alterations in the gut microbiota. Overall, the gut microbiota plays a crucial role in the histopathology of CD, and thus, targeting MAT and CrF may represent a promising avenue for treatment in this patient population.
Trends of alkaline phosphatase to prealbumin ratio in patients with hepatitis B linked to hepatocellular carcinoma development
Authors: Zhen Wen-Chong , Sun Jing , Bai Xue-Ting , Zhang Qian , Li Zi-Han , Zhang Yi-Xin , Xu Rong-Xuan , Wu Wei , Yao Zhi-Han , Pu Chun-Wen , Li Xiao-Feng
Published: December 2024

BACKGROUND

Chronic hepatitis B often progresses silently toward hepatocellular carcinoma (HCC), a leading cause of mortality worldwide. Early detection of HCC is crucial, yet challenging.

AIM

To investigate the role of dynamic changes in alkaline phosphatase to prealbumin ratio (APR) in hepatitis B progression to HCC.

METHODS

Data from 4843 patients with hepatitis B (January 2015 to January 2024) were analyzed. HCC incidence rates in males and females were compared using the log-rank test. Data were evaluated using Kaplan–Meier analysis. The Linear Mixed-Effects Model was applied to track the fluctuation of APR levels over time. Furthermore, Joint Modeling of Longitudinal and Survival data was employed to investigate the temporal relationship between APR and HCC risk.

RESULTS

The incidence of HCC was higher in males. To ensure the model’s normality assumption, this study applied a logarithmic transformation to APR, yielding ratio. Ratio levels were higher in females (t = 5.26, P < 0.01). A 1-unit increase in ratio correlated with a 2.005-fold higher risk of HCC in males (95%CI: 1.653-2.431) and a 2.273-fold higher risk in females (95%CI: 1.620-3.190).

CONCLUSION

Males are more prone to HCC, while females have higher APR levels. Despite no baseline APR link, rising APR indicates a higher HCC risk.
La representación del Mal de los dibujantes españoles en los cómics de Star Wars
Authors: Moreno Serrano Fernando Ángel
Published: December 2024

Resulta complicado analizar los universos transmediales, tanto en conjunto como respecto a obras concretas. Una metodología adecuada podría partir de la exploración del desarrollo fractal de un único tema a través de obras concretas.
La actual generación de dibujantes españoles en los cómics Marvel domina los principales títulos del universo transmedial de Star Wars. Si bien estos artistas no comparten estilos ni inquietudes, aportan maneras muy diferentes de representar el Mal. El análisis temático transmedial puede construirse entonces desde propuestas sobre el Mal como las de Hannah Arendt, María Pía Lara, Susan Sontag, Ana Carrasco-Conde o Martha Nussbaum, para descubrir que las representaciones gráficas aportan ideologemas novedosos y polémicos que sortean las restricciones propias del mercado. Así, a través de su dibujo encontramos desarrollos socio-político-económicos sobre el Mal que tienen que ver con la relación Individuo-Estado en un entorno transmedial.
Trauma infantil, exilio y violencia de Estado en Persépolis, de Marjane Satrapi
Authors: Rosales García Cristina
Published: December 2024

Este artículo tiene como objetivo analizar las transformaciones sociales y políticas que surgen a raíz de la Revolución Islámica presentes en la novela gráfica Persépolis, de Marjane Satrapi, que de una forma u otra legitiman violencias específicas contra la mujer. En línea con lo anterior, se intentará demostrar cómo afectan estos cambios a la configuración identitaria de la protagonista, sobre todo en las primeras etapas vitales, es decir, durante su infancia y adolescencia. Para ello, se tendrá en cuenta la experiencia individual e intransferible de la autora, que solo se entiende desde su condición de mujer migrante.
Plastik Sanatlar Alanında Seramik ve Cam Üzerine Yaklaşımlar 8
Authors: Bozkurt Emel , Savaş Fulya , Biçici Çetinkaya Pınar , Sert İrem , Güngör Memduha Candan , Karacalar Şule , Gürgöze Hüseyin , Yılmazer Yunis , Akkalan Yunus Emre , Çalışkan Güneş Pınar , Aksakal Agâh Barış Can , Yalçın Burhan , Arda Ergün , Yavaş Yeşim
Published: December 2024

Seramik Astarlarının Yüzeylere Uygulanmasında Monotip Baskı Yönteminin Kullanımı ve Kağıt Yardımı ile Astar Transfer Örneği
Emel BOZKURT
Geleneksel Çanakkale Seramiklerinde Motifler
Fulya SAVAŞ
Bone Chına (Kemik Porselen) Tarihi ve Üretimi
Pınar BİÇİCİ ÇETİNKAYA
Öz Benlik ve Hayvan Temalı Seramik Heykel Yorumlamaları
İrem SERT
Memduha Candan GÜNGÖR
Tüketim Kültürü İçinde Metropol Kentleşmenin Sanatla İlişkisi
Şule KARACALAR
Mata Ortiz Çömlek Mata Ortiz Çömlekçiliği
Hüseyin GÜRGÖZE
Seramik Şekillendirme Yöntemlerinde Torna
Yunis YILMAZER
Fosfor Etkili Seramik Sırları
Yunus Emre AKKALAN
 Pınar ÇALIŞKAN GÜNEŞ
Geri Dönüşüm Camların Kullanıma Örnek Bir Girişim: Rero Glass
Agâh Barış Can AKSAKAL
"Zamanda Yolculuk’’: Çini ve Seramik Sembollerin Kültürel Anlamları
Burhan YALÇIN
Çanakkale, Gelibolu Özel Yetenekli Çocukların Sepet Fırın Yapımı ve Pişirim Uygulamaları
Ergün ARDA Yeşim YAVAŞ
Prácticas Pre Profesionales Universitarias en Empresas Públicas y Privadas: Caso de Estudio Facultad de Ciencias e Ingeniería de UNEMI
Authors: Lima Pilozo Kevin Javier , Jara Avila Roxana Stephania
Published: December 2024

Este artículo analiza y compara la experiencia de prácticas preprofesionales en la formación de estudiantes de la Facultad de Ciencias e Ingeniería de la Universidad Estatal de Milagro (UNEMI), específicamente en las carreras de Software (modalidad presencial) y Tecnología de la Información (modalidad en línea). El estudio se centra en la contribución de estas prácticas al desarrollo de competencias y la preparación laboral de los estudiantes, quienes aplican sus conocimientos teóricos en entornos empresariales reales, tanto en el sector público como en el privado. Para esta investigación se ha empleado una metodología mixta que combina el análisis de los procesos internos de gestión de prácticas preprofesionales en UNEMI con evaluaciones de satisfacción y competencia profesional. Se recoge información de estudiantes que completan sus prácticas en el período académico actual, permitiéndole obtener una visión detallada de los beneficios y desafíos que enfrentan en función de su modalidad de estudio. Los resultados de este análisis aportan recomendaciones para optimizar la gestión de prácticas, mejorar la alineación con las expectativas del mercado laboral y enriquecer.
Effects of Newtonian Heating on MHD Jeffrey Hybrid Nanofluid Flow via Porous Medium
Authors: Noranuar Wan Nura’in Nabilah , Mohd Zin Nor Athirah , Mohamad Ahmad Qushairi , Lim Yeou Jiann , Kamis Nur Ilyana , Wan Azmi Wan Faezah , Khan Ilyas
Published: December 2024

In recent years, hybrid nanoparticles have gained significant attention for their ability to enhance thermal conductivity in various fluid systems, making them effective heat transport catalysts. Despite advancements in thermal fluid technology, a gap remains in understanding how hybrid nanoparticles interact within non-Newtonian Jeffrey fluid systems, particularly under complex boundary conditions like Newtonian heating. The present study aims to shed light on the effect of hybrid nanoparticles (alumina and copper) incorporated into a Jeffrey fluid model on flow and heat transport, considering them as heat transport catalyst and subject to Newtonian heating to optimize thermal efficiency. An exponentially accelerated plate is used to induce the fluid flow, taking into account the effects of porosity, MHD, and thermal radiation. The examined fluid exhibits an unsteady one-dimensional flow, formulated by deriving partial differential equations, which are subsequently transformed into ordinary differential equations using suitable non-dimensional variables and the Laplace transformation. This research distinguishes itself by presenting a novel mathematical model for MHD Jeffrey hybrid nanofluid, accounting for porosity and Newtonian heating effects. The inverse of Laplace is used to generate the exact solutions for velocity and temperature profiles, which is not explored in existing literature. Graphical representations are generated using Mathcad, depicting the velocity and temperature distributions. A comparison with prior study from the literature demonstrates strong agreement between our findings and theirs. The findings indicate that the velocity and temperature profiles of the hybrid nanofluid are higher with Newtonian heating than without it. Additionally, an increase in the Grashof number, radiation, acceleration, and porosity parameters also leads to an enhanced velocity profile.
Application of the Phase Field Approach for Crack Propagation in Viscoelastic Solid Materials under Thermal Stress: A Case Study of Solder Fracturing
Authors: Alfat Sayahdin , Barata La Ode Ahmad , Rachman Aditya , Eso Rosliana , Arman Arman , Nurgiantoro Nurgiantoro , Rende Ali Mulya
Published: December 2024

To date, solder has been a crucial component for interconnecting circuit boards (PCBs) and electronic components in the electronics industry. However, solder faces certain challenges, such as cracking due to thermal changes. This paper investigates solder cracking under thermal expansion. We employ a phase field model to study crack propagation under thermal stress in a square domain and in solder with a fillet shape. The model is based on those proposed by Takaishi-Kimura and Alfat, where the stress and strain tensors are modified to account for variations in the temperature field. In this study, we consider the solder material to be viscoelastic, while the other materials are treated as homogeneous and isotropic. A numerical example is computed using the adaptive mesh finite element method, with the code implemented in FreeFEM software. The results of this study are in good agreement with previous numerical and experimental findings.
PENINGKATAN KEMAMPUAAN MENGENAL ANGKA MELALUI PENGGUNAAN MEDIA BALOK ANGKA PADA ANAK USIA DINI
Authors: Pango Kristalana , Janul Felomena Sari
Published: December 2024

Penelitian ini bertujuan untuk membuktikan adanya peningkatan kemampuan mengenal angka pada anak usia 5-6 tahun melalui penggunaan media balok angka di TK Ade Irma Mataloko, Kecamatan Golewa, Kabupaten Ngada. Penelitian ini menggunakan pendekatan kuantitatif dengan desain deskriptif. Data dikumpulkan untuk mengevaluasi kemampuan mengenal angka sebelum dan sesudah penggunaan media balok angka. Hasil penelitian menunjukkan adanya peningkatan signifikan dalam kemampuan mengenal angka pada anak usia 5-6 tahun setelah penggunaan media balok angka. Sebelum menggunakan media balok angka, skor rata-rata kemampuan mengenal angka tergolong sangat rendah. Namun, setelah intervensi dengan media balok angka, skor rata-rata menunjukkan hasil yang sangat bagus. Peningkatan ini mengindikasikan bahwa media balok angka efektif dalam membantu anak mengenal angka secara lebih baik. Dengan demikian, media ini dapat dijadikan alternatif alat pembelajaran yang inovatif untuk meningkatkan kemampuan kognitif anak, khususnya dalam mengenal angka.
Recomendaciones para el mes de Octubre
Authors:   Centro Nacional de Investigaciones de Café
Published: December 2024

Inicia el fenómeno El Niño de intensidad fuerte La intensidad y frecuencia de las lluvias durante el mes de octubre no compensará el déficit de precipitación acumulado y el impacto de El Niño durante el cierre de la época seca de 2016 (marzo-abril). Depende ahora de los esfuerzos interinstitucionales y de agricultores para planificar y enfrentar los impactos en el territorio colombiano.
Recomendaciones para el mes de Diciembre
Authors:   Centro Nacional de Investigaciones de Café
Published: December 2024

El evento de El Niño indica condiciones de verano acentuado entre diciembre de 2015 y enero de 2016.
Recomendaciones para el mes de Agosto
Authors:   Centro Nacional de Investigaciones de Café
Published: December 2024

El mes de agosto continua con una condición de neutralidad, según el monitoreo y seguimiento a la dinámica de la cuenca ecuatorial del océano Pacífico.
Recomendaciones para el mes de Febrero
Authors:   Centro Nacional de Investigaciones de Café
Published: December 2024

Con base en los análisis realizados por el IDEAM y las proyecciones de modelos internacionales, se estima que en el transcurso del mes de febrero las precipitaciones en el área cafetera presenten un comportamiento entre normal y ligeramente por encima de sus valores climatológicos en Antioquia y Nariño.
Effect of Ice Massage to Abdomen on Blood Glucose Level and Cardiovascular Function in Healthy Individuals: A Single-group Pre-test and Post-test Experimental Study
Authors: Mooventhan A. , Nivethitha L. , Yogapriya C. , Kahlilsubramanian K. , Manavalan N.
Published: December 2024

Background: Ice massage is commonly employed in the management of non-communicable diseases like hypertension and diabetes. However, there is a paucity of evidence regarding abdominal ice massage on blood glucose level (BGL) and cardiovascular function either in healthy or pathological conditions. Thus, this study was conducted to assess the effects of ice massage to the abdomen on BGL and cardiovascular functions in healthy individuals.
Materials and methods: In our single-group pre-test and post-test experimental study, 50 healthy (27 females and 23 males) volunteers aged 24.72 ± 5.48 years were recruited. All the subjects underwent only one session of ice massage to the abdomen for 20 min. Random BGL and cardiovascular functions such as systolic blood pressure (SBP), diastolic blood pressure (DBP), pulse rate (PR), pulse pressure, mean arterial pressure (MAP), rate pressure product (RPP), and double product (Do-P) were assessed before, immediately after, and 20 min after the intervention.
Results: The study showed a significant reduction in PR, RPP, and Do-P in the post-test assessments, whereas in the follow-up assessment (i.e., 20 min after the intervention), a significant reduction was found in random blood glucose, SBP, DBP, PR, MAP, RPP, and Do-P compared to the pre-test assessments. No adverse effects were reported by any of the participants during and after the intervention.
Conclusion: Twenty minutes of ice massage to the abdomen improves cardiovascular function immediately after the intervention, whereas after 20 min of intervention, it reduces BGL in addition to improving cardiovascular function in healthy individuals. However, longterm randomized controlled trials in patients with diabetes are recommended with a larger sample size to warrant the clinical efficacy of this study.
Effects of Massage on Self-regulatory Difficulties, Tactile and Oral Abnormalities, and Parenting Stress in Children with Autism Spectrum Disorder (ASD): A Systematic Review and Meta-analysis
Authors: Fadlalmola Hammad Ali , Hassabelrasool Abedelwahed Huda , Ibrahim Hamid Hawa , Balla Ali Anwar , Abd Alrahim Algadi Halima , Jadalla Farg Somia , Mohamed Ahmed Ali Nasreldeen , Abdelrahman Elbashir Ashraf , Hassan Mohammed Maria , Salah Mohmmed Suhair , Ali Mousa Salwa , Ahmed  Gaafar Dali , Ahmed Eltyeb Amna
Published: December 2024

Background: The Centers for Disease Control and Prevention stated that about 1 in every 44 children between the ages of 4 and 8 years old had been identified with autism spectrum disorder (ASD). Complementary interventions such as massage are crucial for the improvement of the health outcomes of ASD patients, such as abnormal sensory response; Autism Behavior Checklist; parenting stress, self-regulatory difficulties, social, language, and communication abilities; tactile or oral abnormalities; Vineland daily living skills; Vineland socialization; Childhood Autism Rating Scale; Preschool Language Scale 5th Edition (PLS-5) auditory communica-tion; and PLS-5 expressive communication.
Purpose: We aim to systematically investigate the effects of different types of massage on self-regulatory difficulties, tactile and oral abnormalities, and parenting stress in children with ASD.
Methods: PubMed, Cochrane Library, Scopus, and Web of Science were scoured from their inception through November 15, 2022. Research comparing massage efficacy in children with ASD to other methods or a control group was included. For randomized controlled trials (RCTs), we utilized the Cochrane risk of bias tool; and for cohort studies, we used the tool developed by the National Institutes of Health. Meta-analysis was carried out with Review Manager 5.4. For our continuous data, we calculated the mean difference (MD) and 95% confidence interval (95% CI).
Results: We included 10 studies with a total number of 485 children with autism. Our analysis showed a significant decrease in the massage group regarding self-regulatory difficulties (MD = −9.15; 95% CI (−13.69 to −4.60), p < 0.0001). Also, the massage group showed a significant decrease in tactile or oral abnormalities compared with the control group (MD = −4.83; 95% CI (−7.86 to −1.80), p  =  0.002). Moreover, parenting stress significantly decreased in the massage group compared to the control group (MD = −4.31; 95% CI (−7.02 to −1.61), p = 0.002).
Conclusion: Qigong and traditional Thai massage improved self-regulatory difficulties and decreased tactile or oral abnormalities in children with autism. Moreover, they decreased parenting stress. However, we need more RCTs with larger sample sizes with high quality to assess the different types of massage effects on autistic children and produce more valid results. So, Qigong and traditional Thai massage could be used as a complement to educational and training interventions in children with autism.
The dynamic ambivalence of adolescence in Emmanuel Dongala’s
Johnny chien méchant
(2002) and Tierno Monénembo’s
L’Aîné des orphelins
(2000)
Authors: Mackenzie Kate
Published: December 2024

In
Johnny chien méchant
(2002) by Emmanuel Dongala and
L’Aîné des orphelins
(2000) by Tierno Monénembo, the figure of the adolescent narrator-protagonist serves to depict personal and social crisis in (post-)conflict environments in Central Africa. This article explores how the authors portray the dynamic ambivalence of adolescence in interaction with a world in flux, both through the subjective accounts of their narrator-protagonists and through narrative form. Dongala uses the device of twin narratives – ostensibly of victim and perpetrator – to depict contrasting paths through violent conflict, and to show the turmoil of each adolescent protagonist from within and without. Monénembo’s teenage narrator gives a disjointed account, moving back and forth between recollections of innocent, stable, pre-pubescent childhood and brash, volatile adolescence, separated by the extreme rupture of the 1994 genocide against the Tutsi in Rwanda. The agency of the adolescent is manifest in a dynamic interaction of self-formation, resistance, and engagement with the world – an interaction intensified by the context of conflict and the ambiguous power of the peer group, violence, and the sexed body. The unreliable first-person narrative voice serves both to shape and to undermine adolescent identity and to deny the reader a stable point of view. In their unsettling and ambivalent conclusions, both novels challenge the linear conception of the child in formation progressing towards ‘fully formed’ adulthood. Rather, adolescence emerges as symbol and embodiment of creative/destructive flux, holding out the fragile possibility of renewal.
UNCOVER: A NIRSpec Census of Lensed Galaxies at z = 8.50–13.08 Probing a High-AGN Fraction and Ionized Bubbles in the Shadow
Authors: Fujimoto Seiji , Wang Bingjie , Weaver John R. , Kokorev Vasily , Atek Hakim , Bezanson Rachel , Labbe Ivo , Brammer Gabriel , Greene Jenny E. , Chemerynska Iryna , Dayal Pratika , de Graaff Anna , Furtak Lukas J. , Oesch Pascal A. , Setton David J. , Price Sedona H. , Miller Tim B. , Williams Christina C. , Whitaker Katherine E. , Zitrin Adi , Cutler Sam E. , Leja Joel , Pan Richard , Coe Dan , van Dokkum Pieter , Feldmann Robert , Fudamoto Yoshinobu , Goulding Andy D. , Khullar Gourav , Marchesini Danilo , Maseda Michael , Nanayakkara Themiya , Nelson Erica J. , Smit Renske , Stefanon Mauro , Weibel Andrea
Published: December 2024

We present JWST NIRSpec prism spectroscopy of lensed galaxies at z ≳ 9 found behind the massive galaxy cluster Abell 2744 in the UNCOVER Cycle 1 Treasury Program. We confirm the redshift via emission lines and/or the Lyα break for 10 galaxies at z = 8.50–13.08 down to M

V
= −17.3. We achieve a 100% confirmation rate for z > 9 candidates reported in H. Atek et al. Using six sources with multiple line detections, we find that offsets in redshift estimates between the lines and the Lyα break alone can be ±0.2, raising caution in designing future follow-up spectroscopy for the break-only sources with the Atacama Large Millimeter/submillimeter Array. With spec-z-confirmed sources in UNCOVER and the literature, we derive lower limits on the rest-frame ultraviolet (UV) luminosity function (LF) at z ≃ 9–12 and find that these lower limits agree with recent photometric measurements. We identify at least two unambiguous and several possible active galactic nucleus (AGN) systems based on X-ray, broad Hβ, high ionization lines, and excess in the UV LF. This requires the AGN LFs at z ≃ 9–10 to be comparable or even higher than the X-ray AGN LF estimated at z ∼ 6 and suggests a plausible cause of the high abundance of z > 9 galaxies claimed in the recent photometric measurements is AGNs. One UV-luminous source is confirmed at the same redshift as a broad-line AGN at z = 8.50 with a physical separation of 380 kpc in the source plane. These two sources show emission blueward of Lyα, indicating a giant ionized bubble enclosing them with a radius of 7.69 ± 0.18 pMpc. Our results imply that AGNs have a nonnegligible contribution to cosmic reionization.
Cosmic Censorship in Sgr A* and M87*: Observationally Excluding Naked Singularities
Authors: Broderick Avery E. , Salehi Kiana
Published: December 2024

The imaging of Sagittarius A* (Sgr A*) and the supermassive black hole at the center of Messier 87 (M87*) by the Event Horizon Telescope constrains the location and nature of emission from these objects. Coupled with flux limits from the near-infrared through the ultraviolet, the attendant size constraints provide strong evidence for the absence of an accretion-powered photosphere, and therefore for the existence of an event horizon about an astrophysical black hole. Here, we demonstrate that a broad class of naked singularities exhibit inner turning points for time-like geodesics, and therefore may generically be excluded, regardless of the nature and unknown physical impact of the singularity itself, subject to the single weak assumption that its nongravitational impact is localized to its immediate vicinity. While we restrict our attention to static, spherically symmetric spacetimes, we are nevertheless able to exclude or constrain a large number of commonly invoked naked singularity spacetimes in this way.
The Effects of Turbulent Electrical Resistivity on the Response of the Solar Atmosphere to Flare Energy Input. I. Results of Radiative Hydrodynamic Simulations
Authors: Emslie A. Gordon , Allred Joel C. , Alaoui Meriem
Published: December 2024

A number of works have considered the role of turbulence in energy release and transport in solar flares, and in particular, on the transport of energy by thermal conduction. Here, we point out that for physical consistency, the effects of turbulence on the electrical conductivity, and hence on the ohmic heating by the return current that neutralizes the current in injected electron beams, must also be considered. Using radiative hydrodynamic simulations, in conjunction with thermal and electrical conductivities modified from their collisional values by turbulent processes, we model the heating rate along a flare loop. We derive the resulting temperature, pressure, velocity, and density profiles, and use them to calculate quantities such as the differential emission measure (DEM) and the emitted X-ray spectrum. For high levels of turbulence, the combination of high electrical resistivity and low thermal conductivity acts to create and sustain a region of very large temperature near the loop apex, creating a large overpressure that acts to suppress the upward evaporation of chromospheric material. Further, the associated large temperature gradients result in a reduction of the DEM at temperatures from 105 K to 107 K. The hard X-ray spectrum at high energies is reduced due to a lower electron flux reaching the chromosphere, but at low energies, it is enhanced due to thermal emission from the very hot coronal plasma. We assess the extent to which these results can be used to constrain the nature and role of turbulent motions in the flare volume.
Iraqi Militia’s January 2024 Attacks on US Military Bases: Insights from 'Unrestricted Warfare' Theory
Authors: Banáš Filip
Published: December 2024

This study examines the January 2024 attacks by Shi’a Iraqi militias on US military bases in Jordan through the lens of the 'Unrestricted Warfare' theory, highlighting the volatile dynamics of US-Iranian relations and Iran’s influence over its affiliated militias. It explores the militias’ operational behaviors, contextualized within Middle Eastern geopolitics and the broader implications of hybrid warfare strategies. Employing David Kilcullen's theoretical framework, the article underscores how varying boundaries of warfare exacerbates regional tensions, risking escalation into broader conflict. The findings emphasize the need for a nuanced understanding of Iranian-militia relations and their implications for US foreign policy in preventing all-out war.
Good practices for the industrial cultivation of the cyanobacterium Arthrospira platensis under a greenhouse in a temperate zone (northern Italy)
Authors: Pistocchi Rossella , Guerrini Franca , Vanucci Silvana , Montalbetti Lorenzo , Simonazzi Mara , Mazzotti Matilde , Abbondanzi Federica , Emiliani Guido , Pezzolesi Laura
Published: December 2024

Arthrospira, Spirulina, and Limnospira are cyanobacteria widely known as food supplements or additives and cultivated worldwide under the commercial name of spirulina. Many studies have been focused on the improvement of operational conditions for optimizing cell growth and harvesting. At present, greater attention is paid to obtaining a good-quality, possibly food-grade, product that can be added to different food formulations and to reducing the environmental impact by saving water and avoiding or minimizing the release of mineral salts in the environment. A few studies have addressed these aspects although, in most cases, through laboratory experiments or pilot plants. This study focused on the effects of medium recycling, monitored at each harvesting step, and nutrient replenishment on Arthrospira platensis growth, biomass, biochemical composition, and extracellular polysaccharide (EPS) production, in a production plant located in a temperate zone (northeastern Italy). Four out of the seven largest ponds (11,000 L each) of the plant were followed for a three-month semi-continuous cultivation, which included the period with the highest biomass productivity. Recycling the culture medium after biomass harvest effectively allowed the best nutritional status of the cells. Biomass productivity increased from June to August 2023 (mean values: 0.029 and 0.038 g L-1 d-1 at 25–26 °C and 27–29 °C, respectively). Protein, polysaccharides, and C-phycocyanin contents were 62, 22, and 12%, respectively, while EPS was < 7 mg L-1. The biochemical composition did not vary during the cultivation period, differently from previous studies performed with small culture volumes and for a short time.