bluuebunny/crossref_metadata_2025 huggingface dataset:
Comparative Study of Numerical Methods for Predicting Crack Propagation in Reinforced Concrete Hollow Core Slabs
Authors: Sheikhnasiri Alireza
Published: April 2024

Hollow core slabs are commonly used in prefabricated building construction and are calculated and constructed using gravity loads. The dead loads of the structure are reduced by using this slab system. Different criteria, such as the initiation and propagation of cracks in the hollow core slab, are used to analyze these slabs. Fracture mechanics is the basis for studying crack propagation. The present study was conducted to analyze the propagation of cracks in hollow core slabs under common loading conditions using the finite element method and numerical modeling to analyze cracks in reinforced concrete members. This research is theoretically conducted using finite element software. This research takes into account the potential varieties of cracks in concrete slabs. Slabs should consider all three types of cracks, which are shear, flexural, and flexural-shear cracks obtained from the reference test. Two Contour integral and XFEM methods are used to analyze cracks in Abaqus software. To validate and control the modeling process, the laboratory results of the research of Ibrahim N. Najma, Raid A. Daudb, and Adel A. Al-Azzawi. December 2, 2019, has been used. The outcomes of this study showed that the probability of the formation of a flexural-shear crack in the slab is higher than in other crack forms.
Effect of Geometry and Size of Fiber Reinforced Plastic Deck Profile on Behavior of Bridges
Authors: Nazemideylami Ali
Published: April 2024

Due to the important role that bridges play in rescue operations after an earthquake, it is necessary that these structures have a higher level of protection against seismic attacks. Earthquake identifies the weak points of the structure and causes the most damage there. Bridges are very vulnerable to these attacks due to their low degree of uncertainty. All bridges built before 1971 were designed with the elastic design method (permissible  stress). In this method, the effects of plasticity, section cracking, and plastic deformation are not taken into account. The change of seismic locations based on the principles of elastic design is much less. It is because the structure experiences in a real earthquake, one of the consequences of which is the falling of the decks due to the loss of the support surface. The decision to strengthen the bridge was made when there were many bending and shear cracks on the king beams. The bridge was created. The use of FRP profiles can significantly prevent the damage caused by corrosion and is a good alternative to the traditional methods of strengthening the structure. In this study, a design for the deck of a steel bridge with I beams is presented. The shape of reinforcement using FRP fibers with vinyl ester resins has also been investigated, the effect of the geometry of FRP profiles has been investigated. The presented specifications are optimized to obtain a lasting shape and section, especially for the pultrusion process. FRP materials are light, resistant to corrosion and have high tensile strength. These materials come in different forms and range from multi-layer factory sheets to dry sheets that can be twisted on various structural forms before adding resin, is available. The durability and high tensile strength of FRP materials are among the advantages of these materials. The durability and long-term performance of FRP requires more research, which is ongoing and continues.
Implementation Of A Waste Bank Management Program In The South Tangerang City Area (Study In Benda Baru Subdistrict)
Authors: Susanto  , Riau Dwi Putranto , Budiati Ayuning
Published: April 2024

This research aims to analyze the implementation of the waste bank management program and the waste bank management model in Benda Baru Subdistrict, South Tangerang City. This research uses a qualitative approach, data collection techniques using observations, in-depth interviews, Focus Group Discussions (FGD) and documentation. The sampling technique used in this research was purposive sampling. The informants consisted of 5 groups of informants, namely the Environmental Service, Village Employees, Waste Bank Managers, Environmental Monitoring Institutions and the Community of Banda Baru Village, South Tangerang City. This research uses the Miles and Huberman Model Qualitative Data Analysis Technique where the implementation of the waste bank management program uses policy implementation theory from George C. Edwards III, namely four variables in public policy, namely Communication, Resources, attitudes (dispositions or attitudes) and bureaucratic structure and Van Horn Theory. The latest in this research is the collaboration between the use of information technology and public policy regarding waste bank management. Waste bank management model to implement a waste bank management program by including information technology elements in the information flow, sorting/sorting flow, bookkeeping flow and customer deposit distribution flow at the waste bank. Meanwhile, the model for implementing the waste bank management program in the flow of collecting or purchasing waste from local government waste banks requires establishing a Regional Owned Enterprise or regional company that specifically handles waste produced from waste banks. This has a massive impact on the green economy concept to improve community welfare.
The Urgency of Applying the Principles of Simple, Fast and Low Cost Justice in the Execution of Industrial Relations Court Decisions in Indonesia
Authors: Farida Ema , Suriaatmadja Toto Tohir , Sundary Rini Irianti
Published: April 2024

This Research Aims To Analyze The Urgency Of Applying The Principles Of Simple, Fast And Low Cost Trials In The Execution Of Industrial Relations Court Decisions In Indonesia. The Research Specification Used By The Author In This Research Is Descriptive Analytical Research, Namely a Research Method That Aims To Get An Overview Of The Symptoms Being Studied At The Present Time And Then Relate Them To Legal Norms Or Statutory Regulations The data analysis used in this research is Qualitative Data Analysis. Analyzing the content of legal documents, court decisions, and related literature to identify themes, patterns, and trends relevant to the research questions. Research results prove that The application of the principles of simple, fast and low-cost justice in the execution of Industrial Relations Court (PHI) decisions in Indonesia has a very important urgency. Here are some reasons why this is so necessary: Protection of Labor Rights: Most of the cases submitted to PHI involve labor rights and worker welfare. Delays in executing decisions may result in workers not being able to immediately obtain their rights, such as delayed wages, leave rights, or other rights.
Analisis Tingkat Risiko Kredit Pada PT. BPR Yaspis Dana Prima Tentena
Authors: Mamase Anjelina , Taariwuan Silvany Annatje , Kawani Fredrik Bastian
Published: April 2024

This research was conducted at PT. BPR Yaspis Dana Prima Tentena. This study aims to determine the level of ktedit risk at PT. BPR Yaspis Dana Prima Tentena. This research was conducted using data collection techniques including observation, documentation and interview techniques. The analysis method used by the author is a quantitative method using Credit Riks Ratio analysis. Primary data sources with interviews and questions and answers, as well as secondary data through references and collectibility report data for 2017-20121 PT. BPR Yaspis Dana PrimaTentena is the source of data used by the author. Based on the results of the analysis, it was concluded that Non-Performing Loan (NPL) loans at PT. BPR Yaspis Dana Prima Tentena decreased from 2017-2020 and in 2021 increased by 5.0%, so this shows that PT BPR Yaspis Dana Prima Tentena's Non-Performing Loan is classified as moderate according to Bank Indonesia regulations.
A Comparative Study on X-Ray image Enhancement Based on Neutrosophic Set
Authors: N.Mostafa Nihal , Krishan Kumar Amit , Ali Yasir
Published: April 2024

Medical image noise, ambiguity, and fuzziness pose challenges to the medical image analysis process. To lessen these problems, fuzzy sets are utilized; however, they frequently ignore the pixel's spatial context. The neutrosophic set (NS) is employed in picture denoising to get over these restrictions. Neutronosophic theory, in particular the NS Bilateral filter, NS Wiener filter, NS Median filter, NS gaussian filter, and NS rank-ordered filter, is covered in this paper. The Lung-cancer dataset of X-Ray images is used to assess the performance of different denoising techniques. The effectiveness of NS-based denoising techniques over conventional techniques is demonstrated through comparisons with other approaches, demonstrating the NS's function in X-ray image denoising.
BASIC CONCEPTS OF THE GROUP APPROACH IN GUIDANCE AND COUNSELING
Authors: Habsy Bakhrudin All , Febiyanti Dela , Arsalan Fidelalika Inasa Putri , Maulana Hikmal , Arfianti Yunica Putri
Published: May 2024

This study was conducted to ascertain the prevalence of individuals experiencing difficulties and requiring the assistance of counselors. In education, the counselor-to-student ratio is 1:150, meaning that one counselor is responsible for providing services to 150 pupils. Guidance and Counseling is an institution that provides assistance and support to individuals in order to help them achieve specific goals and address problems, while also ensuring their continued spiritual well-being. One of the services provided in the field of guidance and counseling is the utilization of a group setting as a method. The group approach in Counseling advice involves multiple counselors, as well as co-counselors who assist in the group counseling advice process. A study was undertaken to identify the techniques that can be utilized in the implementation of group counseling advice, employing the research methodology. Retrieve all pertinent citations related to subjects that pertain to techniques applicable in the process of counseling guidance within a group context. The study yielded several facilities that can enhance the group counseling guidance process, including: (1) understanding group methodologies There are two types of group approaches. The deployment of group guidance and counseling can be divided into three stages. This research aims to provide valuable insights for counselors to enhance their effectiveness in delivering counseling guidance services.
APPLICATION OF ROLE PLAYING TECHNIQUES IN THE CONTEXT OF GROUP COACHING
Authors: All Habsy Bakhrudin , Valencya Natasalwa , Mayassary Zilfy Nurillah , Linsetyowati Nabita Cahya Camilla , Ramadhani Karina Putri
Published: May 2024

Group guidance the role-playing technique is one of the services that plays a role in preventing problems and difficulties for students in the scope of their personal, social, academic, and learning lives. Group guidance role-playing techniques can help learners develop their personal abilities and potential, make decisions, and choose a career in a dynamic group. This study aims to describe in depth the role-playing technique in the context of group guidance. This study employs a qualitative research design, drawing upon the literature study method. Accredited national and international journals provided books and articles as data sources. The results of the study include: (1) the concept and purpose of applying role playing techniques in the context of group guidance, (2) the stages of implementing group guidance role playing techniques, and (3) the advantages and disadvantages of role playing techniques in group guidance.
Análise dos desafios e oportunidades no uso do Power apps com programação low code no desenvolvimento de aplicações empresariais
Authors: Gabriel Gonçalves Ramos Rommel , Luis Mendonça Pedro , Ferreira de Souza Anderson , Fernando Moura Piantino Luiz
Published: April 2024

Este presente trabalho engloba uma metodologia qualitativa dos desafios e oportunidades no uso do Power Apps e da programação Low Code no desenvolvimento de aplicações empresariais. Tem por foco em seu objetivo geral, uma análise aprofundada e abrangente dos desafios e oportunidades associados ao uso dessas ferramentas, buscando fornecer uma avaliação detalhada, que contribuirá para o campo de estudos em desenvolvimento de software e tecnologia da informação. O público-alvo da pesquisa são profissionais que trabalham utilizando essas ferramentas. Os dados obtidos serão observados e verificados, e por fim, serão apresentadas conclusões e recomendações sobre o uso dessas ferramentas. Durante o contexto, serão introduzidos os problemas com o desenvolvimento tradicional de aplicações empresariais, bem como as vantagens trazidas pelo Low Code e o Power Apps. O intuito inicial é apresentar as lacunas que este trabalho de conclusão pretende fechar ao seu entorno, pois tem como justificativa a execução de respostas para o efetivo desenvolvimento dos usuários.
Pengaruh Daya Tarik Wisata, Media Sosial Dan Nilai Terhadap Minat Berkunjung Ke Desa Wisata Hutan Mangrove Kulon Progo Yogyakarta
Authors: Mony Ruslia , Prasetyo Heri
Published: April 2024

This research aims to determine the partial and simultaneous influence of tourist attractions, social media and values on tourists' interest in visiting the Kulon Progo Mangrove Forest Tourism Village. This research uses a quantitative type of research. The population in this study was the penjung mangrove forest tourism village of Kulon Progo. The sample in the study was 249 respondents. The sampling technique was taken using purposive sampling, a sample determination method based on the researcher's considerations which was then processed using SPSS. The data collection technique in this research uses a questionnaire. The instrument testing technique in this research uses validity and reliability. And the data analysis technique in this research uses classical assumptions, multiple linear regression, coefficient of determination and hypothesis testing. The results of this research are as follows. Partially, tourist attraction has a significant effect on tourists' interest in visiting the Kulon Progo tourist village, marked by a t-value of 4.984 which is greater than the t-table of 1.97.
Penerapan Metode Linear Regression pada Analisis Komentar Negatif Konser Coldplay di Indonesia
Authors: Subiksa Gde Brahupadhya , Ariawan Made Pasek Agus , Peling Ida Bagus Adisimakrisna
Published: April 2024

Komentar negatif terhadap kegiatan konser internasional dapat menimbulkan dampak yang cukup berarti pada pelaksanaan konser tersebut di masa yang akan datang. Dampak-dampak yang mungkin terjadi akibat komentar negatif mencakup menurunnya minat dari penonton, kesulitan dalam meraih dukungan sponsor dan mitra, pengaruh terhadap keputusan yang diambil oleh artis atau kelompok musik, serta pertimbangan dalam hal keamanan bagi penyelenggara, penonton, dan para artis atau grup tersebut. Analisis komentar negatif terhadap suatu konser internasional perlu dilakukan untuk strategi yang tepat dalam mengelola dan mengurangi dampak negatif yang mungkin timbul di masa depan. Keuntungan dari melakukan analisis terhadap dampak komentar negatif pada suatu konser internasional sangatlah beragam. Analisis tersebut mampu memengaruhi berbagai aspek terkait pelaksanaan acara dan persepsi masyarakat. Terdapat 72 komentar negatif yang telah diklasifikasikan dengan metode linier regresi. Berdasarkan hasil nilai dari komentar-komentar negatif tersebut, dapat dinyatakan bahwa beberapa kata yang menjadi pemicu suatu komentar dianggap sebagai negatif dalam konteks konser Coldplay di Indonesia adalah kata-kata seperti "penolakan," "hadang," "nggak," dan "tolak." Dari analisis yang dilakukan dalam penelitian ini, kata-kata tersebut muncul dengan frekuensi yang signifikan pada komentar-komentar yang terklasifikasikan sebagai negatif.
 
Negative comments on international concert events can have a significant impact on the future conduct of such concerts. Possible impacts of negative comments include decreased interest from the audience, difficulty in gaining sponsorship and partner support, influence on decisions made by the artist or musical group, and safety considerations for the organizers, audience, and the artist or group. An analysis of negative comments on an international concert is necessary for an appropriate strategy to manage and mitigate negative impacts that may arise in the future. The benefits of analyzing the impact of negative comments on an international concert are diverse. The analysis can influence various aspects related to the implementation of the event and public perception. 72 negative comments have been classified using the linear regression method. Based on the results of the value of these negative comments, it can be stated that some of the words that trigger a comment to be considered as negative in the context of Coldplay concerts in Indonesia are words such as "rejection," "hadang," "nope," and "tolak." From the analysis conducted in this study, these words appear with significant frequency in the comments classified as negative.
1 Instructional Design Based on Interaction for the Development of Communicative Competence
Authors:   Escuela Normal ", Cruz-Ramos María de los Milagros ,   Juan Enríquez”, Tlacotalpan, Veracruz, Mexico,   Universidad Veracruzana, Herrera-Díaz Luz Edith
Published: April 2024

This paper describes a research project aimed at analyzing students’ Communicative Competence in a virtual English course which was modified according to principles of the RASE (Resources, Activities, Support and Evaluation) techno pedagogical model and the communicative approach to language teaching (CLT). The study is based on a convergent mixed methods design, with control and experimental groups. From the quantitative perspective, it employed a repeated measures design in three moments, demonstrating that the experimental group showed improvements due to the modifications to the instructional design. From the qualitative perspective, the communicative acts in four critical incidents were observed during synchronous sessions, showing that the modifications to the instructional design benefited the students’ formal assessments of their communicative competence, as well as their performance in other interactions in which different micro and macro lang uage skills became more complex
The Implementation of MALL for Idiom Learning Attainment during the COVID-19 Pandemic: The Case of Iranian EFL Learners
Authors:   Farhangiyan University, Urmia, West Azarbaijan, Iran, Soleimani Maryam , Aghazadeh Zahrah ,   Ministry of Education, Salmas, West Azarbaijan, Iran
Published: April 2024

The present investigation examines the impact of Mobile-Assisted Language Learning (MALL) on the enhancement of EFL learners’ idiom learning through WhatsApp during the COVID-19 pandemic. Three complete classes with 60 intermediate female learners (20 per class) were selected and randomly assigned into two experimental and one control group in WhatsApp. Data collection tools included Preliminary English Test (PET) and a researcher-designed idiom test used as pre-and post-tests. In the intervention, the first treatment group included contextualized MALL. In other words, the teachers provided the students with idiomatic expressions in context. The second treatment group included decontextualized MALL, idiomatic expressions merely with their meanings were presented to the students through WhatsApp. In the control group, the researchers taught the idioms through translation. This procedure lasted for 20 sessions. The findings of a paired-samples t-test and one-way ANOVA indicated that the contextualized MALL group surpassed the rest in both immediate and delayed post-tests. The implications regarding the efficacy of MALL and online teaching in developing EFL learners’ idiom learning, and retention are discussed
An Investigation into Iranian English Language Learners’ Investment in Imagined Communities
Authors:   Sadjad University, Mashhad, Iran, Soltanian Nahid , Ghapanchi Zargham ,   Ferdowsi University of Mashhad, Iran
Published: April 2024

Unlike communities of practice, previous studies on imagined communities of practice are scarce, yet enlightening. The present research was conducted in an English as a foreign language (EFL) context in order to provide more insight into how language learners perceive their imagined communities (ICs). It was based on Norton’s (2000; 2001) conceptualization of ICs which connected the notions of imagination and imagined community to second language (L2) learning and classroom practice. To this end, 945 male and female EFL learners from different cities in Iran belonging to different age groups and language proficiency levels were recruited for this study. The instrument for data collection was a validated 57-item questionnaire. The findings of the study showed that the participants possessed a moderate level of investment in their ICs. Moreover, t-test results indicated that there was a significant difference between male and female learners in the extent of investment in their ICs. Furthermore, the significant differences in the extent of investment in ICs were shown between teenagers and adults and between learners in low proficiency (LP) and high proficiency (HP) groups. These findings contribute to more in-depth understanding of language learners' ICs in an EFL context. Pedagogical implications of the study are discussed and some suggestions are made for future research.
Evaluating Iranian L2 Teachers’ Assessment Literacy for L2 Pragmatics by Applying the CEFR’s Pragmatic Competence Model: Possible Sociocultural-Informed Solutions
Authors:   Ilam University, Ilam, Ilam, Iran, Kamalvand Ajad , Mohammadi Mohammad Javad
Published: April 2024

Nearly all multidimensional models of communication competence have pragmatic competence at their core. Proper assessment of second language (L2) pragmatics makes many demands on L2 teachers, both in terms of understanding the construct and in language test development. Therefore, being assessment literate helps teachers in developing effective tests geared toward educational outcomes. Despite the importance of assessment literacy (AL) for pragmatics, the field is still under-researched. Mindful of this fact and the significance of pragmatics in L2 learning and assessment, this study adopted the Common European Framework of Reference (CEFR) model of pragmatic competence to examine Iranian L2 teachers’ AL for L2 pragmatics and linked the results to the Sociocultural Theory (SCT) for formulating theoryinformed answers to the problems in the teachers’ assessment of L2 pragmatics. Group interviews were run with 67 participants and then qualitative and quantitative content analyses were performed. The paper discusses the identified problems in the assessment of L2 pragmatics and offers recommendations for raising L2 teachers’ AL for L2 pragmatics.
Impact of Sudden Expansion Structure Length on Shock Wave Dynamics and Autoignition in High-Pressure Hydrogen Releases
Authors: Gu Xin , Pan Xuhai
Published: April 2024

This study investigates the effects of expansion structure length on shock wave behavior, specifically focusing on pressure dynamics, and subsequent autoignition in high-pressure hydrogen systems. Using configurations EPT1 and EPT2, along with a direct pipe (SP1) as a control, we analyze how different expansion lengths influence pressure profiles, shock wave attenuation, and ignition phenomena.
Study on the Effect of Bifurcation Position on Spontaneous Ignition and Shock Wave Propagation Characteristics in High-pressure Hydrogen Leakage Tubes
Authors: Cheng Qi , Hua Min
Published: April 2024

Hydrogen safety issues constrain the development and diffusion of hydrogen energy technologies. The current research on tube types in high-pressure hydrogen storage and transportation links is insufficient. In this paper, the spontaneous combustion law and the propagation characteristics of the shock wave in the tube after accidental leakage of high-pressure hydrogen in a bifurcated tube with a blocking structure are investigated by experimental means. By changing the relative position of the bifurcation structure, it is found that moving the bifurcation position upstream can effectively reduce the intensity of the shock wave at the nozzle of the tube, the propagation velocity of the shock wave inside the tube and the critical ignition pressure. There are three ignition possibilities in the bifurcated tube with blocking structure, and quenching can be realized in the tube under lower pressure.
The Construction of the Curriculum System of Transportation Engineering Electromechanical Professional Group Based on Guizhou's Transportation Characteristics
Authors: Shi Zhongzhen , Xu Zhenjun
Published: April 2024

The professional group of traffic engineering electromechanics has the same professional basic platform courses with the core of engineering machinery application technology, the construction of traffic engineering electromechanical related equipment and facilities as the service object, and the realization of intelligent transportation electromechanical engineering as the goal to realize the cross-border integration of technical skills of the professional courses.Under the guidance of the curriculum concept of "wide caliber + thick foundation", it meets the needs of students' personality development and professional cross-border integration.It has formed a curriculum system in which the foundation of majors is connected, the core courses are separated and the extension courses are extended, cross-boundary, integrated and inter-selected.
Pengaruh Perekonomian Keluarga Terhadap Kesehatan Mental Mahasiswa
Authors: Siti khadijah  , Ariu Lahesi  , Ridhona  , Eka Wulandari
Published: April 2024

Penelitian ini menganalisis hubungan ekonomi keluarga terhadap kesehatan mental mahasiswa, dimana dalam konteks ini banyak keluarga yang menghadapi tantangan ekonomi. Melalui survei dan analisis data, penelitian ini menunjukkan adanya korelasi yang signifikan antara tekanan ekonomi keluarga, tingkat stres dan gangguan kesehatan mental pada mahasiswa. Komunikasi yang terbuka dan mencari sumber pendapatan tambahan diidentifikasi sebagai faktor mitigasi yang efektif. Temuan ini menegaskan perlunya pendekatan yang komprehensif untuk mendukung kesehatan mental mahasiswa, yang mempertimbangkan konteks ekonomi keluarga sebagai bagian penting dari perencanaan dukungan kesehatan mental di institusi pendidikan tinggi. Penelitian ini memberikan kontribusi penting untuk lebih memahami kompleksitas hubungan antara kondisi ekonomi keluarga dan kesehatan mental mahasiswa.
Unravelling the Interplay of Servant Leadership, Cognitive Trust, and Employee Wellbeing: A Cae of An Emerging Economy
Authors: Qureshi Erum , Shehri Firdous Ahmed , Malik Alia , Saif Osman Bin
Published: April 2024

This study examines the relationship between servant leadership, cognitive-based trust, and employee wellbeing in Pakistan's healthcare sector. Grounded in existing research, our study explains the theoretical underpinnings of servant leadership, cognitive-based trust, and employee wellbeing. Servant leadership prioritizes followers' needs, fostering positive outcomes such as organizational citizenship behavior and job engagement. Cognitive-based trust, rooted in transparent communication and shared values, is fundamental to healthy leader-follower relationships and organizational commitment. Employee wellbeing, encompassing physical and psychological dimensions, is crucial for organizational success. In Pakistan's healthcare sector, marked by its complexity and the need for positive work environments, this study investigates how servant leadership and cognitive-based trust impact employee wellbeing. Four hypotheses are formulated: (1) Servant leadership positively correlates with overall employee wellbeing, (2) Servant leadership positively influences cognitive-based trust development, (3) Higher levels of cognitive-based trust correlate with enhanced wellbeing, and (4) Servant leadership's positive influence on wellbeing is mediated by cognitive-based trust. Through empirical testing, this research aims to deepen understanding of leadership, trust, and wellbeing dynamics in healthcare, providing insights for organizational practices. By elucidating these relationships, the study seeks to contribute to the creation of flourishing and sustainable workplaces in Pakistan's healthcare sector.
Electrical Test and Relay Protection Analysis of Power Transformer
Authors: Liang Beibei
Published: April 2024

In this paper, the electrical test and relay protection of power transformer are deeply analyzed. Firstly, the purpose, classification and common methods of electrical test are expounded, and the processing methods of test results are discussed. Then, the basic principle, device classification and configuration method of relay protection are discussed. Furthermore, the relationship between electrical test and relay protection is analyzed, and their application and significance in power transformer protection are discussed. This paper aims to provide theoretical support for improving the operation safety and reliability of power transformers.
Well-to-Wheel Greenhouse Gas Emissions from Flying Cars: A Focus on Air Shuttles
Authors: Xiong Yansen
Published: April 2024

Flying cars are becoming a key technology in future transportation, because of their ability to travel fast and to reduce traffic jams. Air shuttles are an important application scenario of flying cars. They can carry 19 passengers, playing a similar role as medium on-road buses. However, it is still unclear which has a better performance on carbon emissions, air shuttles or road buses. Based on the analysis of the flying car’s flying process, lifecycle greenhouse gas emissions from flying cars which are used as air shuttles are calculated and further compared with on-road bus emissions. For thorough consideration, improvements in battery specific energy are considered, and different propulsion systems for buses are also calculated. The results show that at the current battery technology level (200 Wh/kg specific energy), air shuttles have much more emissions than all kinds of road buses. But if the battery technology progresses to the level of 2030 (400 Wh/kg specific energy as predicted), air shuttles will have a lower emission than fuel cell buses within the range of 250 km, and will be competitive with battery electric bus that carries an equal number of passengers.
Structural Optimization and Process Scheme of Large-span Gantry Crossbeam based on Response Surface
Authors: Zhang Jiahu , Xu Yun , Ye Shuai , Chen Ting , Fang Hao
Published: April 2024

A comprehensive design method for large-span gantry beams, combining process techniques and structural optimization, is proposed to address significant deflection deformation issues caused by their own gravity and the gravity of front attachments. Selecting the beam section type, finite element static analysis is performed using ANSYS Workbench for both cast and welded gantry beams. The maximum static deformation values of the beams for both process schemes are compared to determine the process scheme for the large-span beam. Subsequently, multiple structural dimensions of the welded gantry beam are parameterized, and sensitivity analysis is conducted to determine the degree of influence of each parameter on the optimization objective. Parameters with relatively small effects on the corresponding objectives are eliminated. A response surface multi-objective genetic algorithm optimization based on Box-Behnken design experimental design method is employed to minimize deflection deformation and reduce weight. The response surface model is fitted with expressions, and variance and significance analyses are conducted to validate the model's reliability. The optimal Pareto solutions are determined based on the response surface model using a multi-objective genetic algorithm. A comparison between the beams before and after optimization shows a reduction of 0.052 in maximum static deformation of the welded beam, representing an 8.3% decrease. Additionally, the mass decreases by 1710 kg, indicating a 14.63% reduction, demonstrating significant optimization effects.
Research and Characteristic Analysis of A New Type of Dual Winding Electromagnetic Brake
Authors: Liu Tongliang , Sun Shida
Published: April 2024

Taking the electromagnetic brake as the research object, a new structure of double-winding electromagnetic brake is proposed in view of the serious temperature rise phenomenon of traditional single-winding electromagnetic brake, the high requirement of insulation level and the obvious decrease of electromagnetic force. The equivalent magnetic circuit method is used to analyze and calculate the magnetic field, and the simulation model of the new brake is constructed, and the influence of different parameters on the braking characteristics of the double-winding electromagnetic brake is analyzed by the single-variable method, and the influence curves of each parameter on the electromagnetic force and response time are obtained. At the same time, the magnetic-thermal coupling analysis of the double-winding electromagnetic brake is carried out, and the results show that the total ampere-turns and power of the double-winding electromagnetic brake decreases by 15.3% in the same proportion, the rated electromagnetic force decreases by 22.9%, the release time grows by 23.7%, and the closure time is shortened by 14.6%.
Research on the Evolution of Ancient Women's Wedding Attire
Authors: Cai Yiming , Liu Anding
Published: May 2024

Through the vast expanse of ancient China, a realm renowned for its ceremonial customs, the rites and attire of marriage ceremonies have traversed a protracted journey of inheritance and refinement since the Zhou dynasty, persisting through the epochs of Qin, Han, Sui, Tang, and Song, exemplifying an enduring reverence irrespective of societal strata. Addressing the perennial shifts in bridal attire across eras, this study leverages visual data from ancient women's wedding garments, employing methodologies of image interpretation, textual analysis, and design reconstruction to delineate their typologies, developmental patterns, and causal factors. The findings reveal: 1. Traditional Chinese bridal attire for women in antiquity can be broadly categorized into several forms, including plain robes with scarlet linings, intricately adorned ceremonial robes with hairpins, phoenix crowns paired with colorful veils, and embroidered dresses with red foundations. 2. The evolution of bridal attire styles across generations is intricately entwined with the ceremonial practices, structural ideologies, intellectual expressions, and social hierarchies prevalent in feudal societies, with pronounced correlations particularly during the Tang and Song periods. 3. The evolutionary changes in bridal attire primarily manifest in variations in garment structures, color palettes, designs, materials, and accessories. 4. The evolutionary trajectory of bridal attire encapsulates the crystallization of millennia-old Chinese cultural heritage, replete with profound cultural nuances and symbolic significances, concurrently serving as a guiding beacon for contemporary bridal attire development.
Prevalence of Hypothyroidism and Hyperthyroidism in Women of Reproductive Ages in Kabul
Authors:   Department of Chemistry and Biochemistry, Khatam Al-Nabieen University, Kabul, Afghanistan., Rezayee Hossain , Alipour Adamkhan ,   Department of Chemistry and Biochemistry, Khatam Al-Nabieen University, Kabul, Afghanistan., Alizada Hadi ,   Department of Biochemistry, Maihan Asri medical laboratory, Kabul, Afghanistan., Hussaini Dawood ,   Department of Biology and Microbiology, Khatam Al-Nabieen University, Kabul, Afghanistan.
Published: April 2024

Introduction: The association of sex steroids with cancer cell proliferation has been reported in recent studies; however, the findings are still controversial. The present study aimed to determine the cytotoxic effects of progesterone and testosterone on colon cancer (SW480) cells and to evaluate the expression levels of Bcl-2 and Bax genes in SW480 cells. Materials and Methods: The SW480 cell line was divided into a control group (untreated) and groups treated with 125, 250, 500, and 1000 μg/mL of testosterone and progesterone. Cell viability was quantified by the MTT assay. qRT-PCR was performed to evaluate gene expression levels. Flow cytometry was used to assess the apoptosis in cancer cells. Data were analyzed using the student's t-test and ANOVA. Results: The expression level of the Bax gene significantly decreased in SW480 cells exposed to a cytotoxic dose of progesterone. Moreover, the expression level of the Bax gene significantly increased in the SW480 cells exposed to a cytotoxic dose of testosterone. Conclusion: The results of the present study showed that testosterone might affect the apoptosis of colon cancer cells at low concentrations. Studies have shown that progesterone can induce tumor cell death in cancer cells. Accordingly, the clinical use of testosterone and progesterone therapy for cancer treatment is highly controversial.
Assessing the Efficacy of Blepharoplasty in Afghan people residing in Kabul
Authors:   Department of Plastic and Burn surgery, Esteqlal Hospital, Kabul Afghanistan, Azimi Habibullah
Published: April 2024

Introduction: Blepharoplasty, a surgical intervention designed to restore youthfulness to the eyelids, has achieved global recognition. Nevertheless, there is a dearth of research regarding its effectiveness within specific ethnic groups, including the Afghan population residing in Kabul. This investigation sought to evaluate the efficacy of blepharoplasty in this distinctive demographic. Materials and Methods: Experienced plastic surgeons specialize in performing all the blepharoplasty procedures. The surgical approach included removing excess skin and fat from the eyelids and making necessary adjustments to enhance both eyelid symmetry and functionality. Prior to the surgery, pre-operative evaluations were carried out to evaluate patients' concerns and expectations. Results: In the study, a total of 163 patients were examined, with 129 (79.14%) being Hazara patients and 34 (29.85%) belonging to other ethnicities. Among the participants, 93 (57.06%) were females and 41 (25.15%) were males. In the Hazara ethnic group specifically, blepharoplasty combined with an eyebrow lift yielded excellent results due to the genetic positioning of low and near eyelid eyebrows. Among the Hazara ethnic females, 90 (55.21%) who underwent blepharoplasty with eyebrow lift had excellent results, while 7 (4.29%) had good results with only blepharoplasty. Discussion: These findings emphasize the importance of considering ethnic variations and anatomical characteristics when planning and performing blepharoplasty procedures. The genetic positioning of the eyebrows in the Hazara ethnic group necessitates a comprehensive approach that addresses both the upper eyelids and the eyebrows to achieve optimal outcomes. On the other hand, for non-Hazara ethnic individuals, focusing solely on blepharoplasty may still yield satisfactory results.
Integrating molecular docking and molecular dynamics simulation approaches for investigation of the affinity and interactions of the piperine with Class D β-Lactamase
Authors:   Medical Sciences Research Center, Ghalib University, Kabul, Afghanistan, Rasuly Mohammad Fahim , Mosawi Sayed Hussain ,   Medical Sciences Research Center, Ghalib University, Kabul, Afghanistan, Nazir Sabihullah ,   Medical Sciences Research Center, Ghalib University, Kabul, Afghanistan, Habibzada Zameer ,   Medical Sciences Research Center, Ghalib University, Kabul, Afghanistan
Published: April 2024

Introduction: The study explores the potential of piperine, a natural compound with diverse medicinal effects, as a potential inhibitor targeting OXA-10 class D β-lactamase enzymes, as a potential solution to the drug resistance caused by β-lactamase-producing organisms, which contributes to millions of deaths and morbidity cases worldwide each year. Materials and Methods: Through the utilization of molecular approaches such as molecular docking and molecular dynamics simulation, this study investigated the binding sites and binding energy of class D β-lactamase in the presence of piperine. These analyses were conducted using Autodock 4.2.2 software and the GROMACS 2019.6 program, applying the AMBER99SB force field. Results: Molecular docking findings and interactional analysis studies of molecular dynamics simulations indicated suitable hydrogen bonds and van der Waals interactions of piperine with OXA-10. These findings suggest that targeting β-lactamase using piperine as an inhibitor analog could provide a good pathway to deal with multi-drug resistance. Conclusion: By applying calculation-based methodology, including molecular docking and molecular dynamics simulation, this study suggested that piperine, renowned for its various medicinal properties, can serve as an inhibitor or has the potential to act as an inhibitor targeting the OXA-10 class D β-lactamase enzyme.
Laboratory assays accepted for biological activity disorder, physiological disability, and tissue damage due to the effect of perfluorooctanoic acid contamination.
Authors:   Research and Technology Center, Khatam-Al Nabieen University, Kabul, Afghanistan, Nowroozi Mahdi , Noori Muhammad Younis ,   Medical Sciences Research Center, Ghalib University, Kabul, Afghanistan, Mosawi Sayed Hussain ,   Medical Sciences Research Center, Ghalib University, Kabul, Afghanistan
Published: April 2024

Introduction: Polyfluorooctanoic acid (PFOA) is a member of the polyfluoroalkyl substances (PFAS) family that is widely used in various industries due to its unique chemical and physical properties, including high stability in harsh environmental and biological conditions. However, the widespread distribution of PFOA in nature, such as in air, water, food, and farms, has raised concerns about its potential health effects on humans and other organisms. PFOA has been linked to various diseases and organ dysfunction, primarily attributed to its detrimental impact on essential cellular components such as DNA, RNA, and epigenetic factors, which are critical for proper cell function and development. To better understand the dosage levels and exposure durations that can lead to adverse effects, laboratory experiments, as well as in vivo and in vitro studies, are being conducted to ensure that PFOA does not pose any negative impacts on the environment, human health, and organs. Furthermore, efforts are being made to address this issue by exploring alternative chemical materials or degradation methods to mitigate the presence of PFOA. Therefore, the aim of this research is to gather information from various articles that investigate the doses and mechanisms of PFOA's negative impact on health and organ function. This compilation of information will serve as a valuable resource for researchers studying PFOA and provide a comprehensive reference for those seeking general knowledge on PFOA-related topics in the context of health diseases and the medical field.
Evaluasi dampak penerapan sistem aplikasi Eraterang dalam peningkatan pelayanan publik di Kantor Pengadilan Negeri Gunungsitoli
Authors: Sandroto Wirni , Waruwu Sukaaro , Waruwu Eliyunus , Zebua Emanuel
Published: April 2024

Tujuan penelitian ini adalah untuk mengevaluasi efektivitas aplikasi Eraterang dalam meningkatkan efisiensi proses administrasi di Kantor Pengadilan Negeri Gunungsitoli, serta mengidentifikasi dampak penerapannya terhadap kualitas pelayanan publik. Penelitian ini menggunakan metode kualitatif dengan wawancara semi terstruktur kepada tujuh informan yang melibatkan para pemangku kebijakan dan pengguna aplikasi. Hasil dari penelitian menunjukkan bahwa aplikasi Eraterang telah membawa perubahan signifikan dalam memudahkan proses pengurusan surat keterangan, yang mencakup pendaftaran, pengisian formulir, unggah dokumen, pembayaran, dan penyerahan permohonan secara online. Aplikasi ini juga telah meningkatkan keamanan data pengguna. Namun, kendala teknis seperti koneksi internet yang tidak stabil dan kurangnya pemahaman penggunaan aplikasi masih menjadi tantangan. Berdasarkan evaluasi, direkomendasikan peningkatan infrastruktur teknologi informasi, pelatihan pengguna, dan pengembangan fitur aplikasi untuk memaksimalkan manfaatnya. Kesimpulan dari studi ini menunjukkan bahwa walaupun aplikasi Eraterang efektif dalam meningkatkan efisiensi proses administratif, perlu ada peningkatan pada aspek teknis dan sosialisasi untuk mendukung keberhasilan implementasi aplikasi dalam jangka panjang.
GENDER AND SUBALTERNITY IN ARUNDHATI ROY’S THE GOD OF SMALL THINGS
Authors: Al-Quaderi Golam Gaus
Published: April 2024

Arundhati Roy’s The God of Small Things is a novel which deals with subalternities of different kinds. Among them is the question of gender, caste and class concluding that gender is not the primary determinant of subalternity in Roy’s novel. While many of the characters are gendered this is not the primary cause. It is society and multiple power structutures simultaneously which determine the fate of the characters’ domineering roles and not their birth, essentialistically determined. It is in something else that we must find the primary cause for domination according to Roy. The dominated subalterns suffer because they are on the wrong end of the structure. So, it is the overarching power structure which is like a grid and not like a simple horizontal structure that we cannot say that Roy is a simple feminist.
ECONOMIC COOPERATION ORGANIZATION (ECO) AS A REGIONAL ORGANIZATION: ROLE, HURDLES AND PROSPECTS
Authors: Islam AKM Iftekharul
Published: April 2024

In world politics, regionalism and regional organization have become important elements. Regional organizations, as opposed to international organizations, are created by independent states based on their geopolitical, geographical proximity, economic, or political ties in order to promote socio-economic development and regional integrity. Using a qualitative methodology and secondary data sources, this research attempts to shed light on the fundamental justifications for the creation of Economic Cooperation Organization (ECO) as a regional organization; its economic and socio-cultural practices; interstate rivalry among its members; divisions, and difficulties; ECO’s role and prospects in the current political unpredictability of the world; solutions to current problems and techniques for fostering regionalism in ECO, and the organization’s prospects for the future. Additionally, it assesses ECO’s regional integration considering integration theory and shows whether ECO has been effective in fostering regional cohesion. In light of this, this paper contends that the ECO region has not received enough attention from the vast majority of academics despite having enormous human and natural resource potential and it also implies that in the long run, the ECO region might provide the EU, ASEAN, and other developing countries with a steady supply of energy markets that in turn can play a positive role for the development of the region. The ECO region may also represent a sizable market for the export of technology and equipment by a number of sophisticated economies. The paper concludes the BRI project and the Indo-Pacific Strategy have greatly raised the ECO’s geostrategic significance.