bluuebunny/crossref_metadata_2025 huggingface dataset:
NEURAL NETWORK-ASSISTED CONTINUOUS EMBEDDING OF UNIVARIATE DATA STREAMS FOR TIME SERIES ANALYSIS
Authors: E. Koshel
Published: April 2024

Univariate time series analysis is a universal problem that arises in various science and engineering fields and the approaches and methods developed around this problem are diverse and numerous. These methods, however, often require the univariate data stream to be transformed into a sequence of higher-dimensional vectors (embeddings). In this article, we explore the existing embedding methods, examine their capabilities to perform in real-time, and propose a new approach that couples the classical methods with the neural network-based ones to yield results that are better in both accuracy and computational performance. Specifically, the Broomhead-King-inspired embedding algorithm implemented in a form of an autoencoder neural network is employed to produce unique and smooth representation of the input data fragments in the latent space.
Analysis of the influence of the cooling rate on the hardness of steel for railway rails of the pearlite and bainetic classes
Authors: O Babachenko , R. Podolskyi , G. Kononenko , O. Merkulov , O. Safronova , S. Dudchenko
Published: April 2024

The process of operating vehicles determines the interaction between the wheel and the rail. Traffic safety and the main technical and economic indicators of track manage-ment and rolling stock largely depend on the parameters of this process. The result is the effect arising from the rolling friction and especially from the friction of the wheel sliding on the rail during braking, relative to these changes there is a significant increase in the intensity of wear of the wheels of the rolling stock, which, in turn, can lead to catastro-phic results for the locomotive industry. Also, in the process of operation of the rail in most cases, defects are formed that have the character of a complicated state: its head is subject to wear, crumpling, cracking and buckling, contact fatigue damage can develop in the metal. In pearlite steels, the wear resistance is provided by the high carbon content and the small distance between the pearlite plates (achieved by the hardening process of the rail head), both of which increase hardness. Based on research in recent years, it is known that the strength of pearlite rail steels has reached its limit. In addition, a further increase in the carbon content will affect the impact strength and weldability of rail ma-terials. Therefore, there is an urgent need for other alternative materials. Bainite steel, which provides both high strength and excellent plasticity, is considered one of the most promising directions. It was established that the structure of the test steel at a cooling rate of 0.2˚С/s to 0.52˚С/s has a bainite structure with a small amount of martensite and residual austenite; with an increased cooling rate from 1.3˚C/s - martensite structure with residual austenite.
Analysis of swarm intelligence algorithms
Authors: A.I. Kupin , M.P. Kosei
Published: April 2024

This paper conducts a comprehensive review of swarm intelligence algorithms, highlighting the significant potential and development prospects of multi-agent systems and swarm intelligence. It underscores the ongoing research activity in this field and the continuous expansion of application areas. By examining various studies and publica-tions, the paper concludes the importance of integrating approaches from different scien-tific disciplines to tackle diverse and complex problems using swarm intelligence. Future research is aimed at providing a more detailed analysis and comparison of various swarm intelligence algorithms across different application domains, as well as exploring their integration with other artificial intelligence methods. This work points towards the growing relevance of swarm intelligence in solving real-world problems, showcasing its versatility and effectiveness across multiple sectors, including military, agriculture, search and rescue, and environmental monitoring.
Development of methods for forecasting the technological indicators of the work of a vibrating screen with elastic sives
Authors: D.O. Kononov , V. Yermokratiev , I.V. Pelikh
Published: April 2024

Screening is one of the main operations in the processing of loose material. In the process of operation, the structures of the sieving surfaces must have high in-dicators of the efficiency of the sieving process depending on the classification conditions and keep the sizes of the sieving holes (slots) constant as long as possible in order to min-imize the possibility of coarsening or crushing of the classified material of the calculated size. Currently, sieves made of non-metallic materials, in particular rubber or polyure-thane, which have high wear resistance, have become widely used. A new one has been developed at the Department of Mechanical Engineering of USТ. the construction of an elastic sieving surface, which has high performance indica-tors. On a vibrating screen with a developed elastic sieve, experimental studies were car-ried out and dependences of the screening efficiency on the operating parameters of the vibrating screen were obtained. Mathematical and computer models have been developed, which will allow, using the obtained experimental data, to predict screening efficiency depending on the operat-ing parameters of the vibrating screen. The multiple regression equation for determining screening efficiency was obtained: Y = -51,6593 + 1,598X1-2,5501X2 + 12329X3 (where X1 is the rotation frequency of the motor-vibrator shaft (frequency of vibration of the screening box), Hz; X2 is the amplitude of vibrations of the screening box, mm; X3 - feeding productivity, t/h). Gaussian process regression models give the smallest error. In particular, regres-sion with an exponential kernel function shows the best result. The results obtained by the regression method and machine learning were com-pared. Comparing the results, it can be concluded that the models obtained by the machine learning method give a more accurate result (δmax=5,3%), and when applying the mul-tiple regression equation, the error is 16,2%.
Radial growth of Pinus sylvestris L. under industrial pollution on the Kola Peninsula
Authors: Katyutin Pavel , Lyanguzova Irina
Published: April 2024

Since the beginning of the 21st century in many countries, including Russia (Kola Peninsula), there has been a sharp decrease in the volume of atmospheric emissions from industrial enterprises, which made it possible to trace the reaction of plants to the reduction of aerotechnogenic load. In some regions, very slow recovery of some components of disturbed terrestrial ecosystems has begun; therefore, the urgent task of this study was to reveal the response of radial growth of Scots pine (Pinus sylvestris L.) stem wood to reduced atmospheric emissions of pollutants from the “Severonickel” Combine (Murmansk Region). At the sample plots, established in lichen-green-moss pine forests, 60-65 (background areas), 30 (buffer zone) and 10 (impact zone) km away from the pollution source, stem wood cores (20-50 pieces) were taken from weakened and severely weakened Scots pine trees at a height of 1.3 m from the ground surface using a Pressler drill. At the same time, average samples of the upper organogenic horizon of Al-Fe-humus podzols were taken from each sample plot to assess the level of habitat contamination by heavy metals (Ni, Cu, Co), the content of acid-soluble forms of which was determined by atomic absorption spectrometry. The width of annual rings of each core was measured on a semi-automatic device LINTAB 6, cross-dated and the synchrony index was calculated. It was found that the current level of heavy metal pollution of habitats remains high (buffer zone, the anthropogenic load index varies 7-18 rel. units) and very high (impact zone, the average anthropogenic load index is over 140 rel. units). The most pronounced response of Scots pine radial growth to the reduction of aerotechnogenic load is manifested in the impact zone, where for the period 2000-2019 the width of annual rings increased 2-3 times in relation to the period 1980-1999, and is now comparable or even exceeds the background values. Thus, with further reduction of atmospheric emissions by the “Severonickel” Combine, it is possible to restore the productivity of Scots pine trunk wood in the polluted area.
Geolocation mobile application for delivery of agrochemical packages
Authors: Ochoa-Ornelas Raquel
Published: April 2024

In recent years, the agricultural sector has boosted crop
production and, consequently, the consumption of
agrochemicals. This creates a serious problem, since it
compromises the environment, and increases the levels of
risks to the health of the population when the containers
are exposed. The project proposes to implement a mobile
application to promote the recovery of empty
phytosanitary containers, offering options to locate safe
collection points. It also includes digital receipt inquiries
that cover deliveries. The application was developed
according to the iterative and incremental life cycle using
the Unified Modeling Language (UML). Coding was done
in Android Studio, with access to a MySQL database
installed on a Web server with PHP implementing the
Volley library. The Google Maps API was also integrated
with location options and access routes. This initiative
attempts to reduce damage to the environment and impacts
on health, promoting social commitment.
Estudio de viabilidad de SYCL como modelo de programación unificado para sistemas heterogéneos basados en GPUs en bioinformática
Authors:   , Costanzo Manuel
Published: April 2024

Por un lado, la computación de alto rendimiento (HPC) requiere de modelos de programación que aprovechen el paralelismo masivo de arquitecturas heterogéneas modernas como las plataformas CPU-GPU. Sin embargo, modelos de programación como CUDA y OpenCL presentan limitaciones en portabilidad y productividad. SYCL surge como alternativa prometedora al unificar la programación en C++ y abstraer las particularidades del hardware. Por otro lado, la bioinformática y la biología computacional representan dos campos que han estado explotando las GPUs durante más de dos décadas, y muchas de sus implementaciones se basan en CUDA, lo que impone limitaciones significativas en cuanto a la portabilidad en una amplia gama de arquitecturas heterogéneas. Es por lo que esta tesis doctoral propone evaluar la viabilidad de SYCL como modelo de programación paralelo unificado, portable y eficiente para sistemas heterogéneos con GPUs, específicamente en bioinformática. Considerando que el alineamiento de secuencias biológicas representa una operación fundamental con amplias aplicaciones en diversas áreas de la biología y la medicina, se seleccionó la suite SW\# como caso de estudio por su relevancia y por estar desarrollado en CUDA. Mediante la herramienta SYCLomatic se migró completamente el código de SW\# de CUDA a SYCL. Este proceso involucró la ejecución de la herramienta, modificación del código generado, corrección de errores, verificación funcional, optimizaciones y estandarización SYCL. Posteriormente, se realizaron múltiples experimentos en un amplio conjunto de GPUs y CPUs de diferentes tipos y fabricantes para evaluar la portabilidad de rendimiento del código migrado en contextos individuales, tanto de GPU como de CPU, multi-GPU y CPU+GPU, en un entorno híbrido. Los resultados de esta tesis muestran, en primer lugar, que la herramienta SYCLomatic resulta efectiva y útil para la migración automática, aunque no pueda considerarse una solución final. En segundo lugar, las pruebas realizadas revelan que SYCL presenta una eficiencia comparable a la de CUDA en las GPUs NVIDIA y ofrece una amplia portabilidad funcional con una aceptable portabilidad de rendimiento a GPUs y CPUs de otros fabricantes. En conclusión, SYCL se posiciona como una alternativa viable como modelo unificado de programación heterogénea, portable y eficiente, estableciendo un precedente importante para futuros desarrollos en el área.
Perspective Optical and Electronic Interconnects of Integrated Circuit Elements
Authors: Lazarouk S. K. , Bondarenko V. P. , Borisenko V. E. , Gaponenko N. V. , Gorokh G. G. , Leshok A. A. , Migas D. B. , Chubenko E. B.
Published: April 2024

The recent results of the investigations performed in the research units of the Department of Micro- and Nanoelectronics of Belarusian State University of Informatics and Radioelectronics in the ﬁeld of the development of perspective optical and electronic intra-chip and inter-chip interconnections of silicon integrated circuits are summarized. Examples of the use of nanostructured materials for the proposed light sources and detectors (Si) as well as light guides (Al2O3/TiO2) integrated with monocrystalline silicon are presented. The strategy of an application of inter-chip interposers for optical and electronic connections in bulk (2.5D and 3D) packages of integrated circuits was promoted and tested. Novel materials and structures promising for light sources, optically transparent electrical conductors and protectors against microwave electromagnetic radiation are demonstrated.
Electromagnetic Safety of 4G/5G Mobile Communications
Authors: Mordachev V. I. , Svistunou A. S. , Sinkevich E. V.
Published: April 2024

An analysis is performed for electromagnetic safety of equipment of 4G/5G mobile communications for population and technical facilities of critical infrastructure: railway signaling and telecommunications equipment, medical short-range equipment, medical electrical equipment, and electrical equipment for measurement, control and laboratory use. It was established that radiations of 4G/5G systems are potentially dangerous for functioning of critical infrastructure equipment and the population. Recommendations aimed at reducing the danger of mobile communications for critical infrastructure objects and for population are given.
DESIGN AND EXPERIMENTAL STUDY OF HORIZONTAL-SHAFT ROLLER-TYPE COTTON STALK PULLER BASED ON RESPONSE SURFACE METHOD
Authors: XUE Dangqin , GAO Zhouming , ZHANG Jiaxi
Published: April 2024

In this paper, a new horizontal-shaft roller-type cotton stalk puller was designed to address the problems of weak research on cotton stalk pulling and harvesting machines, poor agronomic adaptability, and insufficient research. First, the physical and mechanical properties of cotton stalk were experimentally studied, the cotton stalk pulling force test was conducted and the moisture content and the bending characteristics of cotton stalk were evaluated. The test results showed that cotton stalk pulling force was positively correlated with the cotton stalk diameter and the bending characteristics were positively correlated with the moisture content but were not evidently influenced by the diameter. Second, with the missed pulling rate and pull-off rate as the evaluation indexes and three independent variables, namely, forward speed, linear speed of stalk pulling rod, and rotation speed of stalk pulling roller, as the influencing factors, a 3D response surface model was established. On this basis, the lack-of-fit term P (p = 0.3650) > 0.05 of the evaluation index—missed pulling rate P1—was acquired, and the P value of pull-off rate P2 was always smaller than 0.0001. Finally, the results demonstrated that the influence of various factors on the missed pulling rate of cotton stalk is significant and followed the order forward speed > linear speed of stalk pulling rod > rotation speed of stalk pulling roller; the significance level regarding the influence on the pull-off rate followed the order rotation speed of stalk pulling roller > linear speed of stalk pulling rod > forward speed. Through the parameter optimization analysis, the optimal parameter combination was obtained which coincide with the model optimization and prediction result. The proposed method provides a basis and experimental reference for studying cotton stalk harvesting machineries.
Sword and the Red Hat
Authors: Shemesh Abraham Ofir
Published: April 2024

The Jewish sources that describe the non-medical dress and accessories of physicians are few. The current article focuses on the attire of Jewish physicians in the Ottoman Empire in the 16th-19th centuries. Two major issues regarding clothing items worn by Ottoman Jewish physicians are conspicuous in the halakhic historical literature: the hat worn by physicians and the practice of carrying a sword. Written testimonies and illustrations indicate that unlike other Jewish men who wore a yellow hat, Jewish physicians wore a red or blue hat, colors considered more prestigious. The elongated hat they wore was, however, shaped differently than that of Muslim physicians such that they could be discerned from their colleagues.
Ownership of Market Investments: Behavioural Finance Through a Benthamite Lens
Authors: Ahluwalia Rupali , Kaur Tarvinder
Published: April 2024

People will attribute greater value to things when they have established ownership of them and this applies to stock market investments. The objective of this research is to critically examine behavioral finance. The nature of behavioral finance is the subject of the research question. Argument seeks to sustain the proposition that behavioral finance can be critically explained through the lens of Bentham's theory of utilitarianism. The research's argument is constructed from library research, drawing new and extended syntheses from the available scholarship, using the lens of Bentham's pleasure pain conceptions. Abalance of pleasure and pain determines future actions, with market efficiency not conforming to human desires. Companies tend to determine their future expectations based entirely on past data, representing pleasure in positive forecasts, and risk aversion being the opposing pole of Bentham's utilitarian thesis. Impersonating others' way of behaving is normal during seasons of market inconsistencies, recommending that joy in group conduct will out-weigh scientific choices.
Electronic Word-of-Mouth (e-WOM) and Its Impact on Customer Trust and Buying Decisions In Social Commerce
Authors: G. Kanimozhi , C Sengottuvel.
Published: April 2024

In the contemporary digital landscape, the widespread adoption of online shopping can be attributed to its transactional convenience and efficient delivery systems. The pervasive utilization of social media platforms such as Facebook, Twitter, and Instagram provide valuable insights into customer engagement behaviors within these domains. As the realm of social commerce continues to expand, the phenomenon of electronic word-of-mouth (e-WOM) has emerged as a critical factor influencing consumer purchasing decisions. The evolution of social media has empowered online users to effortlessly create and share reviews and recommendations, extending to brand endorsements through e-WOM, thereby minimizing both physical and psychological purchase barriers. This study adopts an empirical approach, employing a survey-based methodology involving 252 respondents selected through purposive sampling techniques. The participant pool, consisting of individuals aged 18 and above, encompasses active users of Facebook, Snapchat, and Instagram. This research aims to contribute to the existing literature by investigating electronic word-of-mouth (e-WoM) and its impact on customer trust and buying decisions in social commerce. The findings reveal that consumer trust serves as a mediating factor between e-WOM and the consumer's intention to make purchases on social media platforms.
Perbedaan Jenis Persalinan SC dan Normal dengan Proses Involusi Uteri Pada Masa Nifas Hari ke-7
Authors: Ruliati Ruliati , Yuliatin Yuliatin , Shofiyah Siti
Published: April 2024

Ibu nifas post SC masih ditemukan masalah diantaranya keterlambatan penurunan tinggi fundus uteri. ibu nifas post SC hari ketiga dengan TFU masih satu jari dibawah pusat, padahal seharusnya sudah tiga jari dibawah pusat. Tujuan penelitian untuk untuk mengetahui perbedaan cara persalinan SC dan spontan dengan proses involusi uteri masa nifas hari ke 7 di Puskesmas Gondang kabupaten Bojonegoro. Desain penelitian ini menggunakan metode analitik. Pendekatan yang digunakan cross sectional. Populasi sebanyak 30 ibu nifas dan sampel sebanyak 11 ibu nifas post SC dan 19 ibu nifas normal dengan teknik pengambilan sampel secara jenuh. Variabel independen cara persalinan SC dan normal dan variabel dependen proses involusi uteri pada masa nifas hari ke 7 Penelitian ini dilakukan di Puskesmas Gondang Kabupaten Bojonegoro, dilaksanakan bulan Februari – Juli 2020. Data dikumpulkan dengan menggunakan instrumen penelitian kuesioner, pengolahan data dengan editing, coding, transfering, dan tabulating dan uji statistik menggunakan T-test. Hasil penelitian diperoleh persalinan SC sebanyak 11 responden (36%), persalinan spontan sebanyak 19 responden (64%), proses involusi normal sebanyak 21 responden (70%), proses involusi kurang normal 9 responden (30%), Dari hasil uji independent t-test didapatkan bahwa nilai Sig. (2-tailed) sebesar 0,00 < 0,05, maka sebagaimana dasar pengambilan keputusan dalam uji independent t-tes dapat disimpulkan bahwa H0 ditolak dan H1 diterima, artinya ada perbedaan yang signifikan antara proses persalinan sc dan spontan dengan proses involusi uteri masa nifas hari ke 7. Berdasarkan hasil penelitian ini ibu post SC dimotivasi melakukan mobilisasi secara dini.
Pengaruh Baby Massage terhadap Sleep Quality Anak Usia 1-5 Tahun
Authors: Yanti Entin Srihadi , Nurahmawati Dhewi , Wulaningtyas Eko Sri , Bale Emirensiana
Published: April 2024

Baby massage, pijat bayi, merupakan rangkaian pijatan dengan teknik tertentu yang dapat diberikan pada bayi dan anak-anak. Pijat bayi dapat digunakan dalam kegiatan pemijatan yang dilakukan pada anak usia balita. Hal ini karena Teknik yang digunakan masih sama antara pijatan pada bayi dan anak-anak. Perbedaan yang mendasar pada pijat anak adalah tekanan yang sedikit lebih kuat dibanding pada bayi yang berupa usahapan lembut. Konteks manfaat pijat bayi pada anak balita masih belum banyak diketahui sehingga perlu dilakukan penelitian lebih lanjut. Tujuan penelitian untuk mengetahui pengaruh pijat bayi terhadap kualitas tidur dan daya tahan tubuh anak usia 1-5 tahun. Penelitian ini menggunakan metode diskriptif dengan sampel sebanyak 50 balita. Data diambil menggunakan pre dan post-test pada ibu balita menggunakan formular online. Hasil penelitian menunjukkan bahwa 84% balita yang mengikuti kegiatan baby massage mengalami peningkatan kulitas tidur. Berdasarkan penelitian ini dapat disimpulkan bahwa pijat bayi masih efektif untuk membantu meningkatkan kualitas tidur anak balita.
Efektifitas Baby Swim dalam Perkembangan Motorik Kasar Bayi Usia 9 Bulan
Authors: Mildiana Yana Eka , Sulistyawati Henny
Published: April 2024

Masa bayi merupakan tahapan dimana pertumbuhan dan perkembangan yang sangat cepat dan penting dimulai dari bayi lahir hingga berusia 1 tahun. Perkembangan membutuhkan stimulasi, karena perkembangan merupakan kemampuan dari fungsi dan struktur tubuh. Baby swim adalah salah satu kegiatan yang dapat digunakan untuk menstimulus pertumbuhan dan perkembangan bayi. Penelitian ini bertujuan untuk mengetahui efektifitas baby swim dalam peningkatan perkembangan motorik kasar bayi usia 9 bulan sampai 9 bulan 15 hari di Griya Sehat Mombykids Sambong Jombang. Jenis Penelitian ini adalah Quasi eksperimen dengan pendekatan non randomized pre and post test with control group design. Sampel dalam penelitian ini adalah bayi yang berusia 9 bulan sampai 9 bulan 15 hari sejumlah 18 bayi. Teknik pengambilan sampel menggunakan total sampling. Instrumen dalam penelitian ini menggunakan KPSP perkembangan bayi. Pengolahan data dilakukan dengan menggunakan univariat dan bivariat dengan uji chi square untuk mendapatkan nilai odds ratio. Hasil penelitian menunjukkan pengaruh baby swim terhadap perkembangan motorik kasar bayi dihitung dengan menggunakan rumus nilai odds ratio dengan hasil 9 kali lebih besar untuk meningkatkan kemampuan berdiri menyangga berat badannya saat diangkat ketiaknya, 12 kali lebih besar untuk meningkatkan kemampuan duduk tanpa sandaran. Kesimpulan dari penelitian ini adalah terdapat pengaruh yang signifikan pemberian baby swim dalam meningkatkan motorik kasar bayi yaitu meningkatkan 12 kali dalam kemampuan duduk tanpa sandaran dan 9 kali dalam meningkatkan kemampuan berdiri menyangga berat badannya saat diangkat ketiaknya. Ibu diharapkan bisa melakukan stimulasi ketika sedang melakukan perawatan sehari-hari serta bidan sebaiknya memberikan penyuluhan tentang manfaat stimulasi baby swim pada bayi.
Gambaran Tingkat Kecemasan terjadinya Kehamilan yang Tidak Diinginkan/KTD pada Pasangan Usia Subur Unmeet
Authors: Permatasari Ratna Dewi , Isro'aini Any
Published: April 2024

Penyebab terjadinya ledakan penduduk, unwanted prengnancies (kehamilan  yang  tidak  diinginkan) pada wanita usia subur salah satunya yaitu pasangan usia subur yang unmet need, dimana pasangan usia subur dan aktif secara seksual namun tidak menggunakan metode kontrasepsi,  sedangkan  mereka  menyatakan  tidak  ingin  punya  anak  lagi  atau  ingin  menunda  anak berikutnya  sehingga ini  dapat menjadi  salah  satu  yang memicu  terjadinya  aborsi  tidak  aman serta terjadinya  gangguan  fisik  akibat  tindakan  abortus  yang  tidak  aman. Penelitian  deskriptif  dengan pendekatan  observasional  ini  bertujuan  untuk mengetahui  gambaran  tingkat kecemasan  terjadinya kehamilan tidak diinginkan terhadap pasangan usia  subur yang unmet need di PMB Ratna Kandangan Kediri Tahun  2023. Populasi  penelitian  ini  adalah  PUS yang  tidak  menggunakan metode  KB  tetapi  tidak  ingin  memiliki  anak  dan  sampelnya  berjumlah  30  PUS yang  diambil menggunakan  teknik accidental  sampling.  Hasil  penelitian  menunjukkan sebagian  besar  responden PUS unmet need  dengan usia >35 tahun (53,3%), tidak ingin menggunakan alat kontrasepsi karena tidak ada dukungan suami (33,3%) dan sebagian besar  PUS  mengalami  tingkat  kecemasan  tentang  kehamilan  yang  tidak  diinginkan  dengan  kategori sedang sebanyak 11 responden (36.6%), oleh karena itu perlu untuk dilakukan penelitian lebih lanjut terkait penyebab tingginya umneet need dari segi kebijakan yang diambil oleh Pemerintah yang terintegrasi dengan program KB yang sudah berjalan dan adanya peningkatan kesadaran masayarakat untuk ber KB.
Developing model of the “Kita Bersaudara” to prevent bullying among primary school students
Authors: Mukminin Amiril , Bundu Patta , Anshari Anshari
Published: April 2024

Purpose: The Ministry of Women's Empowerment and Child Protection (KPPPA) explained that three out of four children experienced bullying and reported that the perpetrators were their peers. Furthermore, they noted that two out of three children aged 13-17 years had experienced bullying. This fact is also reinforced by data collected by KPAI over five years; 34,908 bullying incidents occurred, 2,473 of which occurred at school. This indicates that bullying occurs massively in the school environment. Bullying is a damaging factor in children's growth and development; often, the background for bullying is due to students' lack of understanding of it and the lack of friendly relations between them. This research aims to develop a model in the “Kita Bersaudara,” which teachers can use to prevent bullying among students. This research adapts Borg and Gall's research and development, with the main research subjects being students.

Methods: Data were collected using observation methods, interviews, and assessment sheets from experts to determine the validity, practicality, and effectiveness of this model.

Result: This development model research shows that (1) teachers need a model based on friendship or brotherhood to educate students about bullying. (2) Assessment of the feasibility of our model showed a very high validity category, with an average value of 3.65 from the score. The maximum is 4.00, and practicality is considered very practical with an average score of 4.61, out of a maximum score of 5.00. (3) There is a significant difference in the number of bullying cases at the Primary School of Insan Cendekia Madani before and after model of the “Kita Bersaudara” was implemented.
TOOTH BRUSHING SONG AN EFFORT TO IMPROVE THE TOOTH BRUSHING SKILLS AND DENTAL HYGIENE STATUS OF PRESCHOOL CHILDREN
Authors: Purnama Tedi , Sasongko Bimo Gigih , Ngatemi Ngatemi
Published: April 2024

Background: The prevalence of dental caries in preschool children is higher than in elementary school children. Apart from dental caries, preschool children generally have poor dental hygiene status, this is because preschool children do not yet have the independence to brush their teeth. Promotive and preventive measures must be emphasized because curative measures require more complex treatment and greater costs. Promotive efforts are carried out through dental and oral health education, especially the formation of dental health behavior. One effort is to modify the method of providing oral health education by using music and songs. Objective: This study aims to analyze the effectiveness of tooth brushing songs in improving preschool children's tooth brushing skills and dental hygiene status. Method: This research used a pre-experimental design with a pretest and posttest with control group design. This research was carried out on pre-school children at Pertiwi VI Kindergarten, Pondok Labu Village, South Jakarta. The sampling technique was purposive sampling of 33 respondents. The instruments used to measure teeth brushing skills were observation sheets and the PHP-M index to measure dental hygiene status. The data was tested using paired sample t-test analysis, namely a pre-post design. Results: The tooth brushing song was effective in improving tooth brushing skills (p<0.001) and effective in improving the dental and oral hygiene status of preschool children (p<0.001). Conclusion: The tooth brushing song is effective in improving preschool children's tooth brushing skills and dental hygiene status.
THE RELATIONSHIP BETWEEN MOTHER'S ORAL HEALTH LITERACY AND ORAL HEALTH-RELATED QUALITY OF LIFE (OHQOL) OF TODDLERS
Authors: Yani Ristya Widi Endah , Kiswaluyo Kiswaluyo , Dwiatmoko Surartono
Published: April 2024

Background. Mother's Oral Health Literacy is the key to change in children's oral health. The relationship between health literacy and health outcomes has been widely published, but evidence of the impact of oral health literacy remains under-researched. The purpose of the study was to analyze the effect of mother's oral health literacy on the oral health-related quality of life (OHRQOL) of toddlers. Methods. Analytical observational research with a cross-sectional approach in the Silo II Health Center work area for toddlers aged 36-60 months (1027 toddlers). Samples were taken by cluster random sampling of as many as 95 toddlers. The variables of this study were Mother's Oral Health Literacy with the HeLD Index measuring instrument and Oral Health-Related Quality of Life with the Ecohis index measuring instrument. The data were analyzed with descriptive statistics and the Spearman Correlation test. Results. Mother's Oral Health Literacy average of 64.68 ± 33.37 (moderate category). The average Oral Health Related Quality of Life is 29.55 ± 14.97 (moderate category). There is a relationship between Mother's Oral Health Literacy and Oral Health-Related Quality of Life (p-value=0.000). Conclusion. There is a relationship between Mother's Oral Health Literacy and Oral Health-Related Quality of Life.
Dimensionality Reduction by Machine Learning for Cost-Effective Data Analysis
Authors: Asaduzzaman Abu , Uddin Md R , Sibai Fadi N
Published: April 2024

Processing large amount of data with many input features is always time
consuming and expensive. In machine learning (ML), the number of input
features play a crucial role in determining the performance of the ML
models. Studies show that ML has potential for dimensionality reduction.
This work proposes a methodology to reduce the number of input features
using ML to facilitate cost-effective data analysis. Two different data
sets for water quality prediction from Kaggle are used to run the ML
models. First, we use Recursive Feature Elimination with
Cross-Validation (RFECV), Permutation Importance (PI), and Random Forest
(RF) models to find the impact of input features on predicting water
quality. Second, we conduct experiments applying seven ML models: RF,
Decision Tree (DT), Logistic Regression (LR), K-Nearest Neighbors (KNN),
Gaussian Naïve Bayes (GNB), Support Vector Machine (SVM), and Deep
Neural Network (DNN) to explore water quality using the original and
reduced datasets. Third, we evaluate the impact of the optimized data
features on computations and cost to test water quality. Experimental
results show that reducing the number of features from nine to five for
Dataset 1 helps reduce computations by up to 59% and cost up to 65%.
Similarly, reducing the number of features from 20 to 16 for Dataset 2
helps reduce computations by up to 20% and cost up to 14%. This study
may help mitigate the curse of dimensionality, via improving the
performance of ML models by enhancing data generalization.
Importance of the Immature Platelet Fraction in the Etiological Diagnosis of Thrombocytopenia
Authors: Meskini Mohammed Ali , Bazi Kenza El , Yahyaoui Hicham , Ameur Mohamed Ait , Chakour Mohamed
Published: April 2024

Thrombocytopenia is defined as a platelet count of less than 150 G/L in the blood. It can be of central or peripheral origin. Newly-formed immature platelets are called reticulated platelets (RP) and are expressed as the immature platelet fraction or IPF. This automated hematological parameter enables us to distinguish between peripheral and central thrombocytopenia in a simple, quick, easily reproducible and non-invasive way. In the present study, our aim was to evaluate the clinical utility of the IPF and its ability to differentiate between central and peripheral thrombocytopenia. In this prospective study, we collected 50 cases of thrombocytopenia in our series. The IPF and all other CBC parameters were measured using the Sysmex XN-1500 analyser. Based on the clinical context and myelogram findings, the subjects in our study were separated into a central thrombocytopenia group and a peripheral thrombocytopenia group. We then assessed variations in IPF between the two groups. The mean IPF in the peripheral thrombocytopenia group was significantly higher than that in the central thrombocytopenia group (15.71 ± 12.02% vs. 5.51 ± 3.04%; p<0.001) and this difference persisted regardless of platelet count. We also established a sensitivity and specificity ROC curve, which showed that the IPF had excellent diagnostic value for differentiating between central and peripheral thrombocytopenia, with an area under the curve of 0.914. We also defined a discriminative cut-off value of 8.5% with a sensitivity of 77.8% and a specificity of 86.4% for defining the origin of thrombocytopenia. Thus, an IPF value above 8.5% points to peripheral thrombocytopenia with increased platelet regeneration. In conclusion, the results of our study have enabled us to formulate recommendations for improving the diagnostic strategy for thrombocytopenia using the immature platelet fraction or IPF.
Tethered Cord Syndrome in Association with Chiari Type II Malformation: A Case Report
Authors: Hebbezni A. , Kirami S. , Diani A. , Benzalim, M. , Alj S.
Published: April 2024

Tethered cord syndrome (TCS) is a rare but potentially debilitating condition that occurs when the spinal cord is abnormally attached to the surrounding tissue. TCS can be associated with Chiari type II malformation (CM-II), a condition where the cerebellar tonsils protrude into the spinal canal. Here we present the case of a 20-year-old female with a history of spinal lipoma and neurogenic bladder who was found to have TCS and CM-II on MRI. The patient underwent surgical untethering with good postoperative outcome.
Recurrence of an Aggressive Angiomyxoma of the Pelvis: Case Report
Authors: Outaghyame S. , Kirami S. , Ahmanna C. , Zouita I. , Basraoui D. , Jalal H.
Published: April 2024

Aggressive angiomyxoma is a rare, slow-growing mesenchymal tumor of vulvo-perineal and pelvic topography in women of reproductive age. We report the case of a 33-year-old female patient in the genitally active period who underwent surgery for pelvic pathology and presented with chronic pelvic pain with a sensation of heaviness, evolving in a context of apyrexia and preservation of general condition. The anatomopathological diagnosis was aggressive pelvic angiomyxoma associated with a recurrence of her disease. The diagnosis of aggressive angiomyxoma should be made in a genitally active woman presenting with a slow-growing mass of the pelvis and perineum. Preoperative diagnosis using MRI will alter the patient's surgical management and prognosis.
A Rare Case of Eccrine Hidrocystoma of The Eyelid: Case Report and Literature Review
Authors: Jaifi Abdelghafour , Fatihi Meriem El , OPANGO Alban Déo Christian , Fettal Fadoua , Yachkouri Hamza El , Aziz Zakaria , Mansouri Nadia
Published: April 2024

Eccrine hidrocystomas, is a rare cystic lesion of unknown origin linked to sweat retention, First described in 1893 and often present as small, translucent cysts, they derive from eccrine glands. While usually on the face, atypical locations are possible and can be single or multiple. Histology is crucial for diagnosis, revealing retention cysts involving intact eccrine glands. Differential diagnoses encompass various palpebral cystic tumors. Surgical treatment is recommended for significant lesions, while innovative approaches, including carbon dioxide laser and trichloroacetic acid injection, prove effective for smaller ones. Despite the potential for dyschromic sequelae, botulinum toxin type a injections offer lasting efficacy. No risk of malignant transformation is reported, but recurrence is possible.
Pediatric Infratemporal Fossa Meningioma: Uncommon Presentation, Diagnostic Challenges, and Surgical Strategies
Authors: Yafi Moahmed , Rochd Sara , Benhoummad Othmane , Lakhdar Youssef , Rochdi Youssef , Raji Abdelaziz
Published: April 2024

Meningiomas, common tumors of the central nervous system, rarely manifest in extracranial locations, and their occurrence in children is exceptionally rare. This paper presents a comprehensive case study of a 10-year-old female patient diagnosed with an infratemporal fossa meningioma. Immunohistochemistry played a pivotal role in confirming the diagnosis, while CT scans and MRI aided in assessing tumor extension and planning the surgical approach. The tumor was successfully excised using a trans-mandibular osteotomy approach. A thorough literature review highlighted the scarcity of extracranial meningioma cases, particularly in children, and revealed four hypotheses explaining their unusual extracranial localization. Surgical excision remains the primary treatment, with radiation therapy considered for partial removal cases. The diagnostic challenges posed by the paucity of symptoms and the pivotal role of histological confirmation were discussed. This case underscores the importance of immunohistochemistry for diagnosis and initiates the management process for extracranial meningiomas, shedding light on their atypical clinical presentations and etiopathology.
Exosome Therapy in Combination with Photodynamic Therapy for Severe and large-scale Injuries and Resisted Wound Treatment: Case Series
Authors: Ghanbarzadeh Aref , Mehran Yasaman Zandi , Weber Michael , Weber Hans Michael , Najafi Alireza , Rahbar Nahid , Mehran Fatemeh Zandi , Fallah Sarina
Published: April 2024

Background: There are many scientific studies today showing the role of PDT in wound healing. Also, one of the last progressive methods for healing purposes is applying exosomes. Objectives: We investigated the healing process of sever and large-scale injuries and resisting wounds following riboflavin-mediated photodynamic therapy (PDT) that can easily disinfect the wound region in cellular and sub-cellular levels. On the other side, exosomes are one of the most rapid growing methods for regenerative purposes. Materials and Methods: Five subjects with large surface wounds and injuries were treated with PDT (laser irradiation 375 nm and 447 nm, 10 J/cm2, 100 mW) in combination with autologous exosome derived from adipose tissue. Major changes in the wound area have been illustrated. After PDT, 10 billion (in 5ml volume) of adipose derived exosome were applied on a wound trans-dermally. Results: All cases had clinical improvement in the wound area after two weeks without surgery. Conclusion: PDT in combination with exosome therapy can be applied on a large scale and resistant infected wounds as a complementary medicine.
Ogilvie Syndrome Induced by Antidepressant: A Case Report
Authors: Hadadia O. , Haida M. , Lairani F. , Nacir O. , Errami A. Ait , Oubaha S. , Samlani Z. , Krati K.
Published: April 2024

Ogilvie’s Syndrome is a rare entity in which the colon becomes massively dilated without apparent mechanical obstruction. Patients on antidepressant drugs commonly complain of dryness of the mouth, tremors, blurring of vision and constipation, which are attributed to the anticholinergic action of the drugs. We report a case of a 39-year-old female case of gastrointestinal complication (pseudo-intestinal obstruction), which are considered rare according to a review of the literature.
Unusual Unveiling: Hodgkin's Lymphoma Manifesting as Chylous Ascites
Authors: Ibtissam Bounouar , Chama El Manjra , Oussama Nacir , Ezzahra Lairani Fatima , Adil Ait Errami , Sophia Oubaha , Zouhour Samlani , Khadija Krati
Published: April 2024

Chylous ascites, an infrequent manifestation of ascites characterized by a triglyceride-rich milky fluid, is associated with lymphatic system disruption resulting from obstruction or post-traumatic injury. It is an unusual complication of lymphomas, which nonetheless represent the primary cause in adults in developed countries, often due to abdominal lymphatic obstruction. We present the case of a 71-year-old woman who presented with abdominal distension attributed to chylous ascites, ultimately revealing non-Hodgkin lymphoma. Palpable peripheral lymph nodes and enlarged lombo-aortic lymph nodes on abdominal CT scans indicated the diagnosis of stage IV centrofollicular non-Hodgkin lymphoma (Ann Arbor classification). The chylous ascites resolved with chemotherapy treatment.
Osteoid Osteoma of the Talus: Case Report
Authors: Ezzaky F. , Ramzi M. , Hosni S. , Dendane A. , Amrani A. , Alami Z. El , Madhi T. El
Published: April 2024

Osteoid osteomas are benign bone-forming tumors that typically occur in children (particularly adolescents). They have a characteristic lucent nidus <1.5 or 2 cm and surrounding osteosclerotic reaction, which classically causes night pain that is relieved by the use of the location of osteoid osteoma in the ankle is rare. We report the case of a young boy who had an osteoid osteoma of the talus.
Holistic Evaluation of Short-Term Education Abroad Interventions: A Preliminary Case Study
Authors: Fedewa Kevin
Published: April 2024

This preliminary case study used qualitative methods to analyze the experiences of eight short-term education abroad participants prior to, during, and shortly after a two-week program in Taipei. Interpretive analysis of reflection papers, focus group interviews, mobile app assignments, and a post-program evaluation survey revealed that students experienced an increase in language skills and cultural knowledge as well as personal growth. Students attributed these gains to interactions, reflections, and classroom/coursework engagement. The study uses a constructivist and Experiential Learning framework to add to ongoing research on affordances and limitations of short-term education abroad. Implications of the study for future research, program design, and stage-by-stage interventions in short-term education abroad contexts are also discussed.   Abstract in Chinese 這項初步案例研究運用了定性研究方法，分析了八位參與為期兩周台北項目的短期留學生在項目之前、項目期間和項目結束後的經歷。透過學生所寫的學習心得、焦點小組訪談、學生完成的移動應用任務以及項目後的評估調查，解釋性分析顯示學生在語言技能、文化知識以及個人成長方面都有所提升。學生歸因這些成果於與當地人的互動、反思以及課堂/課程的參與。該研究運用建構主義和經驗學習框架，以擴充對短期留學的可行性和局限性的研究。最後，本研究對短期留學的未來研究以及短期留學項目的階段性設計也提出了建議。
Student-Faculty Partnerships as Intercultural Encounters: Co-constructing the Pathways to Global Learning
Authors: Choplin Olivia , Ford Emily
Published: April 2024

It is widely recognized that learning interventions that help student sojourners prepare for and process their study abroad experiences can increase those students’ learning gains. What if, however, students express skepticism or resistance to those learning interventions? This article offers a case study of a student-faculty partnership in re-designing and implementing a pre-, during-, and post-study abroad course sequence offered to world languages majors and minors at a relatively small private comprehensive university. We demonstrate that the student-faculty partnership led to increased buy-in from students and thus also to increased learning on their part. In proposing that student-faculty partnerships in course design can also be imagined as intercultural encounters, we argue that they can bring a unique richness and productive dialogue to designing powerful interventions for student learning abroad.
Abstract in French
Il est bien reconnu que les interventions d’apprentissage qui aident les étudiants en séjour à se préparer et à gérer leurs expériences d’études à l’étranger peuvent accroître les acquis de ces étudiants. Que se passe-t-il cependant si les élèves expriment du scepticisme ou de la résistance à l’égard de ces interventions d’apprentissage ? Cet article propose une étude de cas d'un partenariat étudiant-professeur visant à repenser et à mettre en œuvre une séquence de cours avant, pendant et après le semestre à l'étranger offerte aux étudiants spécialistes ou mineurs en langues dans une université privée polyvalente aux Etats-Unis. Nous démontrons que le partenariat étudiant-professeur a conduit à une adhésion accrue des étudiants et donc également à un apprentissage accru de leur part. En proposant que les partenariats étudiants-professeurs dans la conception des cours puissent également être imaginés comme des rencontres interculturelles, nous soutenons qu’ils peuvent apporter une richesse unique et un dialogue productif à la conception d’interventions puissantes pour l’apprentissage des étudiants à l’étranger.