bluuebunny/crossref_metadata_2025 huggingface dataset:
Additive-manufactured synthetic bone model with biomimicking tunable mechanical properties for evaluation of medical implants
Authors: Yuk Ju Chan , Nam Kyoung Hyup , Park Suk Hee
Published: January 2024

Additive manufacturing has enabled the customization of biomedical systems, including transplantable medical devices, to achieve mechanical biocompatibility. For bone implants, patient-specific bone models must be used to evaluate the mechanical properties of implant compression and subsidence. This study proposes a methodology for designing and fabricating bone models to evaluate patient-specific bone implants. The method involves three-dimensional printing of infill-varied structure, with alternating high-low-high infill density regions, which undergo sequential deformation from the surficial region during compression with an implant. Based on this deformation behavior, the relationship between infill density parameters and mechanical properties was confirmed with the tunability of mechanical properties involving stiffness and failure load. The infill-varied design was applied to the inner structures of artificial vertebra models based on computed tomography scans for cadaver specimens. By tailoring the infill density conditions, the stiffness and failure load were approximated to those of the natural vertebrae. Furthermore, this infill-varied artificial vertebra could be used to evaluate additive-manufactured patient-specific implants. The patient-specific implant had greater resistance to subsidence than the commercial implant, suggesting the feasibility of a biomimicking bone model. The bone-mimetic infill-varied structure could be used to evaluate patient-specific manufactured implants and could be applied to other bone engineering structures with optimized biomechanical properties.
Urgensi Fatwa dan Sidang Isbat dalam Penentuan Awal Bulan Kamariah di Indonesia
Authors: Qulub Siti Tatmainul , Munif Ahmad
Published: January 2024

Tulisan ini bertujuan mengkaji urgensi fatwa dan sidang isbat dalam penentuan awal bulan Kamariah di Indonesia. MUI telah mengeluarkan Fatwa MUI Tahun 1981 dan Fatwa MUI No. 2 Tahun 2004 yang berisi tentang penetapan awal Ramadhan, Syawal dan Dzulhijjah dimana seluruh umat Islam di Indonesia wajib mentaati ketetapan Pemerintah yang dilakukan melalui sidang isbat. Namun, masih banyak yang tidak mentaati ketetapan Pemerintah tersebut. Penelitian ini menjawab dua rumusan masalah. Pertama, bagaimana urgensi dari Fatwa MUI dan Sidang Isbat dalam penetapan awal bulan Kamariah di Indonesia? Kedua, seberapa besar kontribusi dari Fatwa MUI dan Sidang Isbat dalam menyatukan awal bulan Kamariah di Indonesia? Metode deskriptif analitis dengan pendekatan fikih falak digunakan untuk menjawab kedua rumusan masalah tersebut. Penelitian ini menghasilkan dua temuan. Pertama, Urgensi dari Fatwa MUI dan Sidang Isbat adalah sebagai bentuk tanggung jawab ulama dan pemerintah kepada masyarakat Indonesia untuk menciptakan kebersamaan, memberikan kepastian pendapat, meminimalkan perbedaan dan konflik. Kedua, Fatwa MUI menjadi langkah dan pijakan awal bagi pemerintah untuk menetapkan kriteria awal bulan Kamariah (MABIMS dan Neo MABIMS). Sidang Isbat menjadi forum wadah untuk menghimpun berbagai informasi baik hasil hisab maupun laporan. Keduanya berkontribusi dalam upaya mewujudkan kemaslahatan yaitu kebersamaan waktu ibadah.
Analysis of safety factors in the calculation of strength by internal pressure of oil and gas field and main pipeline systems
Authors:   “Geotechnological Problems of Oil, Gas and Chemistry” SRI, Seyidli F.H. , Aslanov J.N. ,   “Geotechnological Problems of Oil, Gas and Chemistry” SRI
Published: January 2024

The article is devoted to the analysis of the safety factors used in the calculations for the internal pressure strength of oil and gas pipelines. A number of national, regional and international normative technical documents regulating the design of pipelines were considered. The safety factors provided in these documents in the calculation of the strength of pipelines are analyzed. For a comparative estimation, mathematical models were developed. As a result of the analyzes, the use of a safety factors for the yield strength of pipe material was recognized as more acceptable in calculating the strength of pipelines. The authors give recommendations on the choice of safety factors depending on the mode of operation and the type of transported hydrocarbon products. AzDTN2.2-9 is the only regulatory document in force in the territory of the Republic of Azerbaijan in this sphere. As this document does not meet modern criteria and is morally outdated, it was considered expedient to develop a new regulatory and technical act taking into account the suggestions made.
Methodological issues of sap system implementation and its trends in the new millennium
Authors:   SOCAR, Polukhov T.N. , Rahimli S.S. ,   Baku Higher Oil School, Israfilov R.R. ,   Azerbaijan Technical University
Published: January 2024

The paper deals with the methodological issues of the implementation of SAP ERP system. First of all, in the context of the project management, the major phases of the SAP projects and the measures necessary for each of them have been classified in the logical sequence for the goal-oriented management of the work of all section of an enterprise. As a result, the road map has been presented in the form of a table. Furthermore, the experience gained on the implementation of SAP ERP systems in the foreign and local enterprises was studied, and the pros and cons of existing strategies of the implementation in this sphere were interpreted as well. Considering the fact that the organization of ERP system in the country’s economy is in the initial stage, the metodical offers on the development of a corporative system of management for Azerbaijani enterprises are presented. Theoretical and practical value of the article lies in the fact that it may be widely used in experience during the implementation of SAP ERP system, as well as while shifting to HANA.
Combined method of impact on layered-heterogeneousn formation based on in-situ steam generation
Authors:   Institute of Oil and Gas of Azerbaijan Republic, Mamalov E.N. , Abileva S.Zh. ,   Kazakh National Research Technical University named after K.I.Satpaef, Moldabayeva G.Zh. ,   Kazakh National Research Technical University named after K.I.Satpaef
Published: January 2024

This article discusses the combined method of influencing a layered-heterogeneous reservoir. In-situ steam generation (IPSG) is used as the main method, which in turn can be considered a combined technology of hot water injection and in-situ combustion. In order to improve the efficiency of the IPSG, it is proposed to inject a slug of an alkali solution (NaOH). The main mechanism in the application of IPSG is thermal interference between layers of different permeability. The use of alkali allows us to use its positive properties. The use of alkali allows us to use its positive properties. Such as lowering the surface tension at the boundary of the oil solution of alkali, the formation of an emulsion. The formation of an emulsion in a high-permeability layer contributed to an increase in the pressure drop in it and, accordingly, changed the direction of the fluid flow. Most of the injected water-air mixture began to flow into the low-permeability layer. Thus, the effectiveness of the impact on the formation was increased. The effect of alkali solution concentration on oil displacement from a layered-heterogeneous reservoir is estimated. The proposed technology made it possible to increase the coverage of the layered formation by the process and, accordingly, increase the oil recovery factor. Experiments were carried out for two oils with different viscosities: 86 mPa.s and 510 mPa.s.
About the method of calculation of strength and durability of steel technological pipelines of high pressure
Authors:   OGPİ “Oil&gas”, Nagizade A.R.
Published: January 2024

The article provides information on the methodology for calculating the strength and stability of a pipeline operating under conditions of high pressures and temperatures, taking into account the working pressure. According to the steel grade, the wall thickness of the selected linear section element was determined based on the initially specified resistances. Also, using modern software, a constructive model of the pipeline was built and its strength resistance from the action of specified loads was calculated. According to the results of the analysis, the suitability or unsuitability of the pipeline can be determined.
Comparative assessment of the qualities of commercial and synthetic transformer oils
Authors:   Institute of Petrochemical Processes of Azerbaijan Republic, Hasanova R.Z. , Logmanova S.B. ,   Institute of Petrochemical Processes of Azerbaijan Republic, Ibragimova M.J. ,   Institute of Petrochemical Processes of Azerbaijan Republic, Kafarova N.F. ,   Institute of Petrochemical Processes of Azerbaijan Republic
Published: January 2024

Petroleum transformer oils previously produced in the USSR met the requirements of ГОСТ 982-80. Balakhany oil and Dossor low-paraffin oil of the Emben field were the raw materials for obtaining transformer oil. The composition of transformer oils is taken into account when choosing raw materials and their regeneration. Т-1500у – transformer oil of improved quality, is used in electrical equipment up to 500 kV and up to 750 kV. ГК oil is a hydrocracking transformer oil, used in voltages up to 1150 kV, contains ionol. Тсп is oil from West Siberian oils, used up to 220 kV. This oil is of relatively low quality, characterized by a high sulfur content, low oxidation stability, and high dielectric loss tg. In the Institute of Petrochemical Processes, research has been carried out on the selective purification of transformer oil distillate from Balakhany oil using a new highly effective solvent – ionic liquid (IL) – a quaternary ammonium salt of formic acid and a number of amines – morpholine, aniline or di-, triethylamines. The optimal conditions for the selective purification of the distillate have been developed. Due to the shortage of high-quality transformer oils, as well as the high cost, in recent years, oils have been imported from Sweden and Austria. An ionic liquid as a solvent is highly selective and selective. The analysis of the extract from selective purification showed that it does not contain naphthene-paraffins, the content of aromatic hydrocarbons in the extract is 65 %, and when purified with furfural it is 40.8 %. The ionic liquid is environmentally friendly.
Esophageal intramural pseudodiverticulosis
Authors: Shintaku Masako
Published: January 2024

Esophageal intramural pseudodiverticulosis (EIPD) is a disease of unknown pathogenesis characterized by usually systemic, cystic dilatation of the excretory ducts of esophageal submucosal glands. In this article, I review the epidemiology, clinical manifestations, endoscopic findings, esophagographic findings, and histopathology of EIPD. I also discuss the etiology and possible pathogenesis of EIPD based on my experiences with this disease and a review of the literature. EIPD usually presents with dysphagia in middle-aged individuals. It is often complicated with secondary infections, most commonly candidiasis. On esophagography, EIPD is delineated as small, multiple, flask-shaped outward projections within the esophageal wall. In recent years, EIPD has been mainly diagnosed by endoscopic findings of multiple, localized, small mucosal depressions. The orifices of the “pseudodiverticula” periodically open and close, and excrete mucus onto the mucosal surface. On histopathological examination, the luminal surface of dilated ducts in EIPD is covered by multilayered, hyperplastic epithelial cells, but myoepithelial cells in the glandular acini are well preserved. Treatment of EIPD is usually symptomatic therapy, and prevention of the infectious complications is important. The etiology and pathogenesis of EIPD are largely unknown, but functional abnormalities of autonomic nerve fibers innervating the esophageal glands likely play an important role, since the structures of the glands are basically preserved in this disease.
Dialectics of Adopting Traditional Values by Children in the Conditions of Neo-Globalization
Authors:   Financial University under the Government of the Russian Federation, Makhamatov Tair M. , Mamatov Mamadzhan A. ,   Fergana State University
Published: January 2024

This article explores the key factors and stages of children’s obtaining traditional values of family and society. The main objective of the research was to substantiate the thesis that the foundation, degree and quality of perception and assimilation of traditional values by a child are initially determined by the spiritual and material values prevailing in the family, as well as by the culture and psychology of the adults’ attitude towards children. It is known that both Russian and Uzbek families are heterogenous due to their belonging to a particular social stratum or class, since each family is influenced by the dynamics of not only society, but also of a particular stratum. The authors argue that a child’s set of values is formed through the prism of the existence emerging in his/her soul and determined by the contradictions in the process of socialization. In order for a child to better assimilate positive values, this existence needs to be softened. In fulfilling this task, a significant role is played by the educational qualities of parents and grandparents and their ability to establish trusting relationships, through which, according to C. Jung, the older generation would be able to gently and unobtrusively gain the child’s respect, admiration and love. Trying to win authority by giving presents or money will only damage the spiritual world of a child. The article concludes that to form a child’s set of values and turn him/her into a worthy person, it is important for the close relatives to show by example industry, discipline, independence, honesty and responsibility. The authors adhere to the positions of C. Jung and L.S. Vygotsky according to which school, being a subsequent stage of socialization, should be considered not only as an educational institution, but also as a logical step in the process of adopting traditional values by a child. In addition, it is argued that we need to develop courses for young parents where they would learn about the culture of family life and the psychology of child education.
National Forum of Russian Historians: Current State, Topical Issues and Prospects of Historical Education and Science in Russia
Authors:   Northern (Arctic) Federal University named after M.V. Lomonosov, Goldin Vladislav I.
Published: January 2024

This article dwells on the Second National Forum of History Teachers which took place in Tobolsk in October 2023. The paper covers the forum’s main results as well as the work of its sections and plenary session and characterizes the key reports and speeches by scholars and university teachers, leaders of the Ministry of Science and Higher Education of the Russian Federation, State Duma, Russian Academy of Sciences, Russian Academy of Education, Russian Historical Society and other organizations. In addition, the article analyses the forum’s significance for the development of historical science and higher education in Russia, as well as the agenda of the next forum scheduled to be held in 2024.
Effectiveness of Myofascial Release Technique Versus Cupping Therapy on Pain and Range of Motion in College Going Students with Trapezitis
Authors: Firdosh F. Shekh  , Rushikesh Joshi  , Devanshi M. Mehta
Published: January 2024

Background: Trapezitis is one of the common inflammatory conditions seen among college going students dueto prolonged poor posture stressful neck movement. Students with Trapezitis usually complaints of pain anddifficulty in activities of daily living. Myofascial release technique can be defined as a soft tissue mobilizationtechnique that reduce trapezius spasm and ultimately pain is reduced. Cupping is ancient medical technique it is general utilise a glass cup to create suction over a painful area.Need of study: There are few literatures or research work available on this. No comparison is done on abovetechniques. So, this study was done to compare both the techniques.Objective: To compare the Myofascial Release Technique and Cupping therapy on pain intensity and neck disabilityindex in Trapezitis among college going students.Methodology: A total of 50 students with Trapezitis meeting the inclusion and exclusion criteria were allocated into two groups of 25 each. Group A (MFR) and Group B (Cupping) to receive 6 sessions of MFR and cupping therapy Pre and Post intervention scores of Visual analogue Scale (VAS), Cervical ROM (CROM) and Neck disability index (NDI) were measured.Results: Data was analysed by SPSS21, t-test were applied. Statistically significant improvements were observed in both groups but more pronounced in Group B. VAS (t = 6.3257) P<0.0001. NDI (t = 9.0547) P<0.0001Conclusion: The results suggested that cupping therapy showed better results than myofascial release in relieving Trapezitis in college going students.
Análisis de la forma de la concha de Anadara tuberculosa como indicador de contaminación en manglares.
Authors: Sánchez Aldás Ana , Rodríguez -Grimón René , Moreno Juan , Chollet-Villalpando Jorge Guillermo
Published: January 2024

Los manglares son ecosistemas altamente productivos y esenciales para numerosas especies. Sin embargo, han sufrido importantes pérdidas debido a la ocupación de espacios con fines industriales, tales como la acuicultura y agricultura. El objetivo fue determinar si la variación en la forma de la concha de Anadara tuberculosa está relacionada con la concentración de Cd y Pb en el tejido blando. Se recolectaron ejemplares en tres localidades de manglar del Ecuador continental. La localidad Esmeraldas se utilizó como sitio control debido a su bajo índice de contaminación en contraste con los sitios Guayas y El Oro, dos provincias con antecedentes de contaminación por metales pesados. Utilizamos coordenadas cartesianas y métodos de morfometría geométrica para analizar la variación y variabilidad de la forma de la valva derecha de A. tuberculosa. El análisis de variables canónicas indicó diferencias significativas entre las tres localidades, con la máxima variación de la forma ubicada en la porción derecha de la concha. Las concentraciónes de Cd y Pb en tejido no superaron el límite máximo permitido, sin embargo, Guayas registró la mayor concentración de Cd, acercándose al límite. En términos de variabilidad Esmeraldas presentó el mayor valor de disparidad morfológica. Sin embargo, las comparaciones pareadas de los valores de disparidad del sitio control con respecto a las localidades con altos índices de Cd no fueron significativas. Esmeraldas mostró la forma más disímbola en términos de disparidad parcial. Estos resultados indican la posibilidad de que la concentración de metales pesados produce variación en la forma de la valva de A. tuberculosa que es útil para distinguir entre los sitios de estudio. Los resultados enfatizan la necesidad de vigilar los niveles de Cd en las poblaciones de A. tuberculosa en las provincias de Guayas y El Oro con el propósito de conservar el ecosistema de manglar.
Improving preclinical to clinical translation of cognitive function for aging-related disorders: the utility of comprehensive touchscreen testing batteries in common marmosets
Authors: Murai Takeshi , Bailey Lauren , Schultz Laura , Mongeau Lauren , DeSana Andrew , Silva Afonso C. , Roberts Angela C. , Sukoff Rizzo Stacey J.
Published: January 2024

Concerns about poor animal to human translation have come increasingly to the fore, in particular with regards to cognitive improvements in rodent models, which have failed to translate to meaningful clinical benefit in humans. This problem has been widely acknowledged, most recently in the field of Alzheimer’s disease, although this issue pervades the spectrum of central nervous system (CNS) disorders, including neurodevelopmental, neuropsychiatric, and neurodegenerative diseases. Consequently, recent efforts have focused on improving preclinical to clinical translation by incorporating more clinically analogous outcome measures of cognition, such as touchscreen-based assays, which can be employed across species, and have great potential to minimize the translational gap. For aging-related research, it also is important to incorporate model systems that facilitate the study of the long prodromal phase in which cognitive decline begins to emerge and which is a major limitation of short-lived species, such as laboratory rodents. We posit that to improve translation of cognitive function and dysfunction, nonhuman primate models, which have conserved anatomical and functional organization of the primate brain, are necessary to move the field of translational research forward and to bridge the translational gaps. The present studies describe the establishment of a comprehensive battery of touchscreen-based tasks that capture a spectrum of domains sensitive to detecting aging-related cognitive decline, which will provide the greatest benefit through longitudinal evaluation throughout the prolonged lifespan of the marmoset.
The impact of problem domain on Bayesian inferences: A systematic investigation
Authors: Pighin Stefania , Filimon Flavia , Tentori Katya
Published: January 2024

Sparse (and occasionally contradictory) evidence exists regarding the impact of domain on probabilistic updating, some of which suggests that Bayesian word problems with medical content may be especially challenging. The present research aims to address this gap in knowledge through three pre-registered online studies, which involved a total of 2,238 participants. Bayesian word problems were related to one of three domains: medical, daily-life, and abstract. In the first two cases, problems presented realistic content and plausible numerical information, while in the latter, problems contained explicitly imaginary elements. Problems across domains were matched in terms of all relevant statistical values and, as much as possible, wording. Studies 1 and 2 utilized the same set of problems, but different response elicitation methods (i.e., an open-ended and a multiple-choice question, respectively). Study 3 involved a larger number of participants per condition and a smaller set of problems to more thoroughly investigate the magnitude of differences between the domains. There was a generally low rate of correct responses (17.2%, 17.4%, and 14.3% in Studies 1, 2, and 3, respectively), consistent with accuracy levels commonly observed in the literature for this specific task with online samples. Nonetheless, a small but significant difference between domains was observed: participants’ accuracy did not differ between medical and daily-life problems, while it was significantly higher in corresponding abstract problems. These results suggest that medical problems are not inherently more difficult to solve, but rather that performance is improved with abstract problems for which participants cannot draw from their background knowledge.
A hybrid approach to dynamic cognitive psychometrics
Authors: Tanis Charlotte C. , Heathcote Andrew , Zrubka Mark , Matzke Dora
Published: January 2024

Dynamic cognitive psychometrics measures mental capacities based on the way behavior unfolds over time. It does so using models of psychological processes whose validity is grounded in research from experimental psychology and the neurosciences. However, these models can sometimes have undesirable measurement properties. We propose a “hybrid” modeling approach that achieves good measurement by blending process-based and descriptive components. We demonstrate the utility of this approach in the stop-signal paradigm, in which participants make a series of speeded choices, but occasionally are required to withhold their response when a “stop signal” occurs. The stop-signal paradigm is widely used to measure response inhibition based on a modeling framework that assumes a race between processes triggered by the choice and the stop stimuli. However, the key index of inhibition, the latency of the stop process (i.e., stop-signal reaction time), is not directly observable, and is poorly estimated when the choice and the stop runners are both modeled by psychologically realistic evidence-accumulation processes. We show that using a descriptive account of the stop process, while retaining a realistic account of the choice process, simultaneously enables good measurement of both stop-signal reaction time and the psychological factors that determine choice behavior. We show that this approach, when combined with hierarchical Bayesian estimation, is effective even in a complex choice task that requires participants to perform only a relatively modest number of test trials.
Hospitalization of elderly people due to COVID-19 in the State of Paraná, Brazil: analysis of associated factors
Authors: Derin Vanessa Neckel , Pesce Giovanna Brichi , Höring Carla Franciele , Moura Débora Regina de Oliveira , Vissoci João Ricardo Nickenig , Facchini Luiz Augusto , Salci Maria Aparecida , Carreira Lígia
Published: January 2024

Abstract

Objective

To analyze the prevalence and factors associated with hospitalization of elderly people with COVID-19 in the State of Paraná, PR, Brazil.
Methods

A cross-sectional study linked to the cohort “Longitudinal Monitoring of adults and elderly people who were discharged from hospital admission due to COVID-19”, was carried out using information contained in the compulsory notification forms of the Notifiable Diseases Information System. Analyzes were carried out using relative and absolute frequencies, applying the chi-square test adopted in the logistic regression model. The study population included people aged 60 years or over and residing in the State of Paraná, who were hospitalized for COVID-19 from March 2020 to September 2021.
Results

A higher hospitalization prevalence was identified among elderly people with eight years of education or more. Individuals not vaccinated against COVID-19 had a greater chance of hospitalization. Males had a greater chance of admission to the Intensive Care Unit compared to females. Cardiovascular diseases, lung disease, and obesity have increased the prevalence of the severe form of the disease.

Conclusion

Factors such as education and non-adherence to vaccination against COVID-19 can increase the risk of hospitalization due to the disease. Elderly people of the male sex have a greater chance of hospitalization in the ICU compared to the female sex. Furthermore, not using antivirals can contribute to worsening health status.
Cybersecurity Awareness among Secondary School Students Post Covid-19 Pandemic
Authors: Masita Jalil  , Noraida Hj. Ali  , Farizah Yunus  , Fakhrul Adli Mohd Zaki  , Lee Hwee Hsiung  , Mohammed Amin Almaayah
Published: January 2024

The COVID-19 pandemic has significantly transformed the landscape of education delivery, leading to a surge in online teaching and learning methods, and consequently, increased Internet usage among students. These circumstances have created an environment that make them vulnerable to cybercrime due to the lack of cybersecurity awareness. This paper proposes a cyber-awareness program aimed at increasing students' knowledge of cybersecurity and their ability to manage the risk of cyber threats. The methodology employed consists of four phases: Initiation and Planning, Development of Modules, Implementation, and Evaluation. The results of descriptive and statistical analyses show an increase in participants' awareness of cyber security threats and risks following their participation in the program. In conclusion, this program has successfully achieved its objectives of enhancing cyber security awareness and promoting safe internet usage among participants. These findings suggest that similar programs can be utilized to increase cybersecurity awareness and promote safe internet usage among the students.
The Mismatch of Present and Required Future Workforce Skills of Manufacturing Industry
Authors: Noor Nazihah Mohd Noor  , Shazaitul Azreen Rodzalan  , Maisarah Mohamed Saat  , Nor Hazana Abdullah  , Aniza Othman  , Harcharanjit Singh  , Natrah Mohd Emran
Published: January 2024

Manufacturing is one of the vital industries in Malaysia that contributes to the national Gross Domestic Product (GDP) and provides employment for society. The manufacturing sector involves the use of various technologies in order to produce output. However, technological advancement has affected the manufacturing sector mainly in terms of skills demanded. Furthermore, studies focusing on skills demanded in the future from the manufacturing industry perspective regarding Industry 4.0 remain scarce. Therefore, this study aims to identify the present and future skills and determine the differences in the skills demanded. This paper intends to determine mismatch encountered concerning skills demanded by the industry due to the rise of Industry 4.0. The method used in this study was the review of literature on the skills demanded in the manufacturing industry obtained from journal articles, magazines, books and online news that were closely related to the keywords and research area. This paper emphasised the impact of the skills demanded by the manufacturing industry and the skills needed in the future for manufacturing in Malaysia. Most research has discussed the skills set based on the employers and universities’ perspectives. The findings of the study found that there is a differences and mismatch between the present and future skills demanded by manufacturing industry. Therefore, the future studies required to conduct the study related to the future workforce skills in order to provide clear sight of the future workforce skills in the specific industries.
Drone Edu Challenge IR 4.0: Expanding Skills Sets of Malaysian STEM Talent Pool
Authors: J. Pusppanathan  , Maizatul Nadwa Che Aziz  , Izwyn Zulkapri  , Fatin Aliah Phang  , Nina Diana Nawi  , Dayana Farzeeha Ali  , Ruzimi Mohamed  , Wan Mohd Farhan Wan Fuaad  , Fauzan Khairi Che Harun  , Erni Yulianti
Published: January 2024

As Industrial Revolution 4.0 (4IR) arrived, there is a pressing need to prepare the new generation with skills and knowledge to face the challenges in this era. Programming is the fundamental skills and knowledge that should be introduced and mastered by the youngsters’ generation. There is a wide range of educational programs to develop the skills and knowledge among university students, but less effort is given to help school children to learn these skills. Therefore, Drone Edu Challenge IR 4.0 was designed as an educational program to introduce drones to all secondary schools in Malaysia through a competition at the national level. The participants were provided with webinars, online resources, and facilitators to guide them in learning drones and programming under the safe environment at home due to the pandemic COVID-19 lockdown. Despite the challenges of the lockdown, the participants were able to connect socially and get motivated throughout this program because this educational program was designed to be social, interactive, contextual, fun, and relevant to the students through gamification and tournament. To understand the effectiveness of this educational program, interviews were conducted, and the result showed that the participants have achieved more than what the program was designed for. After undergoing the program, some participants are now the drone and programming experts the schools have identified. They lead and teach their peers to learn programming. They show interest and talent to master STEM knowledge and skills. Therefore, more similar educational programs related to technology of 4IR should be organised to develop the Malaysian STEM talent pool.
Intelligence Shopee Product Comparison (i-SPC) and Visualization of Product Information via Naïve Bayes Adaptation
Authors: Khyrina Airin Fariza Abu Samah  , Nurul Syuhada’ Abd Raub  , Lala Septem Riza  , Hana Fakhira Almarzuki  , Nurazian Mior Dahalan  , Ahmad Firdaus Ahmad Fadzil
Published: January 2024

Electronic Commerce (E-Commerce) is a type of commerce that takes place online. The most used platform based on frequently visited in Malaysia is Shopee. According to a questionnaire survey of 102 respondents, 95.1% agreed that manually comparing Shopee product information takes time. Manual analyzing a group of similar products is notoriously complicated, and finding informative reviews for product purchases is becoming increasingly challenging. This study aims to obtain Shopee information from the real-time Shopee website. Hence, Intelligence Shopee Product Comparison (i-SPC), aims to design a web-based application system that compares Shopee product information from different shops using the Naïve Bayes algorithm. The user can copy and paste the chosen Shopee product link to a maximum of ten links for comparison. The i-SPC displays the information based on seven focused factors and categorizes whether the pasted link is “recommended” or “not recommended”. The visualization result uses a bar chart to show four types of information: shop rating, product price, followers, and chat response. Testing phases have proven that the classifier accomplished all the research’s objectives and successfully classified Shopee product information with 87.50% accuracy, which is considered “good”. All test cases for the functionality test proved that the i-SPC successfully solved the problem. Therefore, it can conclude that i-SPC overcame the problem and improved the product comparison process.
The Optimization of Vacuum-Bagging Processing in Oven Cure for Tensile Strength in Composite Laminate
Authors: Nur Hafzareen Md Hanafiah  , Abdul Rahim Othman  , Mark Ovinis
Published: January 2024

The implementation of autoclaves has been limited due to high production costs and an excess of residual stress. These drawbacks have led to the exploration and development of an alternative method known as out-of-autoclave (OoA) manufacturing process. This research study was proposed to enhance the production of high tensile strength in composite laminate by optimizing the vacuum-bagging-only (VBO) pre-forming process. The impacts of both individual and combined pre-forming parameters in VBO-oven cure processing were measured for traditional low-cost glass/epoxy composite material with respect to the tensile strength of the cured laminates. Twenty composite panels were produced according to specified parameter combinations using central composite design in a fractional factorial approach for creating a response surface model. The study examined three variables, namely the duration of vacuum debulking, the number of sides with edge breather, and the weight of the intensifier. Two laminates were manufactured without additional processing parameters using both the oven (baseline) and autoclave methods for validation purpose. Subsequently, a tensile test was carried out following ASTM D 3039. The interaction among the combined parameters was examined using analysis of variance (ANOVA). The laminates exhibited the lowest tensile strength when the intensifier was not present, while the highest tensile strength was recorded when edge breather, debulk, and intensifier were applied at varying levels. An ideal processing configuration of 30 minute-debulk, each side of edge breather and 1kg-intensifier had resulted in the production of laminate with the highest tensile strength, measuring 407.44 MPa. This value was roughly 17.2% higher than that of the baseline laminate and 3.77% higher than the autoclave laminate.
Novel Algorithm for Baseline Detection of Offline Arabic Handwritten Text Recognition
Authors: Ahmad Mustafa Ali Al Masri  , Muhammad Suzuri Hitam  , Wan Nural Jawahir Hj Wan Yussof  , Atallah Al-Shatnawi
Published: January 2024

The baseline detection is one of the challenging tasks in the pre-processing stage of an online Arabic handwritten text recognition. The challenges include text skewness, touching letters or words, short words, sub-words, ligatures, isolated characters, small descenders, and diacritics. This paper presents a novel automated algorithm for baseline detection that is able to overcome the previously mentioned challenges. The proposed baseline algorithm mainly used a skeletonizing algorithm to estimate the baseline for each sub-word that appear in the image separately. The proposed algorithm had been tested using the benchmark handwritten Arabic database, i.e., IFN/ENIT database. The experimental results showed that it is able to reduce the average error between the actual baseline and the resulting baseline to 3.39 pixels for all sub-words and achieved an average of 3.6% in the ratio between the error pixels and the image height. In addition, the proposed algorithm shows that it is superior as compared to four others benchmarked baseline detection algorithms. It is anticipated that this algorithm will be able to be applied for many Arabic offline handwritten applications in the future.
Significant Effect of Vacuum Bagging Processing on Inter-Laminar Shear Strength and Voids of Composite in Oven Cure
Authors: Nur Hafzareen Md Hanafiah  , Abdul Rahim Othman  , Mark Ovinis
Published: January 2024

Autoclave had been constrained to longer time consumption, higher production costs and excessive residual stress. The challenges regarding with out-of-autoclave (OOA) cure involved the need to devise the techniques in preserving high quality of composite product during service life. The current work was proposed to quantify the impact and influence of pre-forming parameter variations in vacuum-bagging-only with oven curing (VBO-oven cure) of OOA manufacturing composite processing on the inter-laminar shear strength (ILSS) of low-cost conventional composite laminates. The relationship of ILSS and void quality characteristics was also investigated. Series of conventional lower-cost glass/epoxy aerospace-grade material was fabricated using 16 different processing routes in conventional oven. Burn-off and ILSS test was conducted based on ASTM standard to compute the ILSS and void content of cured laminates. Scanning electron microscopy (SEM) analysis was performed on the post-test ILSS coupons to evaluate the relationship between void characteristics and ILSS. Results indicated that mould release type and intensifier contributed highest effects towards ILSS of approximately 31.3% and 27.6%, respectively. The assessment of ILSS-void relationship was further carried out and it was found that void geometry has a greater influence towards ILSS than the void content of composite laminate. The combination of these factors in processing routes yielded the lowest ILSS and void content at 24.85 MPa and 5.74%, respectively. These concluded that an optimized manufacturing technique could be expanded from the optimum settings of these processing parameters.
PENGABDIAN KEPADA MASYARAKAT MELALUI KULIAH KERJA MAHASISWA (KKM) DI DESA KARANGPAPAK: UPAYA MENINGKATKAN KETERAMPILAN MAHASISWA DAN PENGEMBANGAN UMKM LOKAL
Authors: Santi Legianti Sutandi
Published: January 2024

Student Work Lecture (KKM) is a concrete manifestation of the duties of lecturers and students in carrying out the Tri Dharma of Higher Education, namely the aspect of service. Through community service activities in Karangpapak village, there is a synergy between universities and the community as a form of knowledge democracy. The purpose of this service is to provide opportunities for students to apply the knowledge they have learned on campus, as well as to improve social, communication and collaboration skills. KKM is also useful for helping the community in overcoming various problems they face, such as in the fields of education, health, economy, environment, and others. The service is carried out through activities: design training workshops, digital marketing seminars, local umkm development, and teaching KKM. The results of the service provide an illustration of rising enthusiasm and increasing public understanding, especially in the field of branding and developing SMEs using online media. Thus, KKM can be an effective and meaningful learning tool for students and the community.
PERAN MAHASISWA DALAM MENINGKATKAN KESADARAN PENTINGNYA PENDIDIKAN DAN KETERAMPILAN DI KALANGAN MASYARAKAT DAN GENERASI MUDA DI DESA WANAJAYA KECAMATAN CISOLOK KABUPATEN SUKABUMI
Authors: Cepta Hery  , Hidayat Ahmad
Published: January 2024

Program kegiatan Kuliah Kerja Mahasiswa (KKM) merupakan perwujudan dari salah satu Tri Dharma Perguruan Tinggi yaitu pengabdian kepada masyarakat. Pelaksanaan kegiatan KKM yang diselenggarakan oleh STISIP Widyapuri Mandiri Sukabumi di Kecamatan Cisolok merupakan salah satu bentuk implementasi pengabdian kepada masyarakat tersebut. Kegiatan KKM bertujuan untuk memberikan pengalaman kerja nyata bagi para mahasiswa dalam satu kelompok yang terintegrasi antar jurusan program studi yang diharapkan dapat membentuk kepekaan jiwa sosial, sikap mandiri, kerjasama dan bertanggungjawab. Program kegiatan yang dilaksanakan dalam bentuk sosialisasi dan seminar yang menitik beratkan kepada kesadaran masyarakat terhadap pentingnya pendidikan dan motivasi belajar serta memiliki keterampilan guna meningkatkan kompetensi individu dalam menggali potensi yang ada di desa tempat tinggalnya untuk meningkatkan perekonomian dan kesejahteraan. Terlaksananya kegiatan KKM dengan baik dan lancar tidak terlepas dari kerjasama berbagai pihak khususnya aparat desa dan masyarakat serta pihak sekolah yang berpartisipasi aktif di dalam pelaksanaan kegiatan KKM. Diharapkan pelaksanaan program-program KKM tersebut dapat memberikan manfaat serta dampak positif bagi masyarakat dalam hal kesadaran pentingnya
Analisis Penguasaan Kosakata (Vocabulary) Bahasa Inggris Anak Usia Dini
Authors: Sudarma Tri Feridiyana , Novitasari Yesi , Reswita Reswita
Published: January 2024

Penelitian ini  bertujuan untuk memahami penguasaan kosakata bahasa Inggris anak kelompok B TK Ihsan Kids. Metode penelitian yang digunakan adalah deskriptif kuantitatif. Sampel penelitian ini adalah siswa Kelas B TK Ihsan Kids. Teknik pengambilan sampelnya mengadopsi teknik sampling populasi. Jumlah responden dalam penelitian ini adalah 28 siswa. Penelitian ini menggunakan kuesioner untuk mengumpulkan data, rata-rata hasil penelitian adalah 2,84% Analisis penguasaan kosakata bahasa Inggris anak kelompok B TK Ihsan Kids di Pekanbaru berada pada tingkat tinggi. Di antara indikator nilai kosakata bahasa Inggris anak usia dini dapat disimpulkan dari indikator yang nilainya lebih tinggi mencapai tingkat akhir
An Automatic Approach for Grouping Sunspots and Calculating Relative Sunspot Number on SDO/HMI Continuum Images
Authors: Zhao Cui , Yang Shangbin , Wang Tingmei , Zhao Haiyan , Liu Shiyuan , He Fangyuan , Hu Zhengkun
Published: January 2024

The relative sunspot number is one of the major parameters for the study of long-term solar activity. The automatic calculation of the relative sunspot number is more stable and accurate as compared to manual methods. In this paper, we propose an algorithm that can detect sunspots, and divide them into groups to automatically calculate the relative sunspot number. Mathematical morphology was adopted to detect sunspots then group them. The data set used were the continuum images from SDO/HMI. The process was carried out on the overall HMI data available on the timespan from 2022 January to 2023 May with a time cadence of one day. The experimental results indicated that the method achieved high accuracy of 85.3%. It was well fitted with the international relative sunspot number provided by Solar Influences Data Analysis Center (CC = 0.91). We calculated the conversion factor K value of SDO/HMI for calculating the relative sunspots number (K = 1.03).
Transition from Small-scale to Large-scale Dynamo in a Supernova-driven, Multiphase Medium
Authors: Gent Frederick A. , Mac Low Mordecai-Mark , Korpi-Lagg Maarit J.
Published: January 2024

Magnetic fields are now widely recognized as critical at many scales to galactic dynamics and structure, including multiphase pressure balance, dust processing, and star formation. Using imposed magnetic fields cannot reliably model the interstellar medium's (ISM) dynamical structure nor phase interactions. Dynamos must be modeled. ISM models exist of turbulent magnetic fields using small-scale dynamo (SSD). Others model the large-scale dynamo (LSD) organizing magnetic fields at the scale of the disk or spiral arms. Separately, neither can fully describe the galactic magnetic field dynamics nor topology. We model the LSD and SSD together at a sufficient resolution to use the low explicit Lagrangian resistivity required. The galactic SSD saturates within 20 Myr. We show that the SSD is quite insensitive to the presence of an LSD and is even stronger in the presence of a large-scale shear flow. The LSD grows more slowly in the presence of SSD, saturating after 5 Gyr versus 1–2 Gyr in studies where the SSD is weak or absent. The LSD primarily grows in warm gas in the galactic midplane. Saturation of the LSD occurs due to α-quenching near the midplane as the growing mean-field produces a magnetic α that opposes the kinetic α. The magnetic energy in our models of the LSD shows a slightly sublinear response to increasing resolution, indicating that we are converging toward the physical solution at 1 pc resolution. Clustering supernovae in OB associations increases the growth rates for both the SSD and the LSD, compared to a horizontally uniform supernova distribution.
Probing the Dipole of the Diffuse Gamma-Ray Background
Authors: Kashlinsky A. , Atrio-Barandela F. , Shrader C. S.
Published: January 2024

We measured the dipole of the diffuse γ-ray background (DGB), identifying a highly significant time-independent signal coincidental with that of the Pierre Auger UHECR. The DGB dipole is determined from flux maps in narrow energy bands constructed from 13 yr of observations by the Large Area Telescope (LAT) of the Fermi satellite. The γ-ray maps were clipped iteratively of sources and foregrounds similar to that done for the cosmic infrared background. The clipped narrow energy band maps were then assembled into one broad energy map out to the given energy starting at E = 2.74 GeV, where the LAT beam falls below the sky’s pixel resolution. Next we consider cuts in Galactic latitude and longitude to probe residual foreground contaminations from the Galactic plane and center. In the broad energy range 2.74 < E ≤ 115.5 GeV, the measured dipoles are stable with respect to the various Galactic cuts, consistent with an extragalactic origin. The γ-ray sky’s dipole/monopole ratio is much greater than that expected from the DGB clustering component and the Compton–Getting effect origin with reasonable velocities. At ≃(6.5–7)% it is similar to the Pierre Auger UHECRs with E
UHECR ≥ 8 EeV, pointing to a common origin of the two dipoles. However, the DGB flux associated with the found DGB dipole reaches parity with that of the UHECR around E
UHECR ≤ 1 EeV, perhaps arguing for a non-cascading mechanism if the DGB dipole were to come from the higher-energy UHECRs. The signal-to-noise ratio of the DGB dipole is largest in the 5–30 GeV range, possibly suggesting the γ-photons at these energies are the ones related to cosmic rays.