bluuebunny/crossref_metadata_2025 huggingface dataset:
NAVIGATION OF SOCIAL COMMUNICATION TRANSFORMATION OF MALAY TEENAGERS PETALANGAN RIAU IN THE DIGITAL ERA
Authors: Susanti Hevi , Salman Ali , Amalia Asrinda
Published: April 2024

Technological progress towards digitization is now accelerating. In the current era of digitalization, most people have embraced a new lifestyle that is inseparable from electronic devices. The advent of the digital age has brought about many beneficial changes that can be fully utilized. Nevertheless, the emergence of the digital era has brought many adverse effects, thus creating new challenges in human existence throughout this period. The advent of the digital era has brought issues in various fields, including political, business, socio-cultural, defense, security, and information technology aspects. One of the purposes of the study is to manalysis of the influence of digitization on the metamorphosis of Malay culture in Petalangan, Indonesia. The investigation was inspired by the fact that people in Penang mostly ignored their traditional customs, which led to the identification of further goals in this area. Investigation of the current study This study uses qualitative techniques. This study was conducted in Petalawan village, which is located in the busy Pelalawan area of Riau province. In this particular study, participants used snowball sampling along with sample methods to collect data by observing individuals and conducting interviews. The data collected was analyzed using a specially developed interactive model created by Huberman and Miles. The result of this study is an understanding of the social dynamics of the Malay population of Petalangan, especially obtained from the digitization process. The digitization process has facilitated the emergence of new cultural expressions among the Malay population of Petalangan. Local artists and musicians can use internet platforms to disseminate their work, create music or art that combines traditional and contemporary elements, or innovate in fresh digital art forms influenced by their cultural heritage.
REVIEW ON LEAKAGE DETECTION MODEL OF WATER DISTRIBUTION SYSTEM FOR NON-REVENUE WATER
Authors: Mohamad Na’in Nuramalina , Din Roshidi , Wan Abdullah Wan Aida Nadia , N. Mohd Farid Nik Fatinah
Published: April 2024

Efficient water distribution systems are essential for ensuring global access to clean water, yet the persistent challenge of Non-Revenue Water (NRW) poses a significant threat to the sustainability of water utilities. NRW, comprising losses from leaks, unauthorized consumption, and inaccurate metering, remains a critical concern with economic and environmental implications. The escalating global demand for water highlights the urgency of addressing Non-Revenue Water, with leakage being a substantial contributor to these losses. Leakage models are pivotal tools in understanding and quantifying the factors contributing to water losses. This review consolidates current knowledge on leakage models, offering insights into their applicability in reducing Non-Revenue Water. It aims to guide water engineers, policymakers, and researchers toward effective strategies for minimizing water losses, improving system efficiency, and promoting sustainable water management practices. This paper presents a comprehensive review of leakage models within water distribution systems, focusing on their role in mitigating Non-Revenue Water.
STUDENTS' PERCEPTIONS RELATED TO THE EFFECTIVENESS OF ONLINE LEARNING AND THE READINESS TO FACE PHYSICALLY PRACTICAL TESTS IN VOCATIONAL COLLEGE AT JOHOR
Authors: Alias Muhammad Syafiq , Mohd Ishar Mohamad Izzuan
Published: April 2024

All schools, including vocational colleges, have been closed due to the implementation of the Movement Control Order to curb the spread of the COVID-19 outbreak. Therefore, the method of implementation of teaching and learning (PdP) as well as the evaluation of practical work for the Roof Installation System subject has been changed. The Malaysian Ministry of Education has announced that the implementation of PdP must be conducted online while the practical test must be conducted face-to-face. Therefore, this study was carried out to identify the effectiveness of online practical learning on the level of students' readiness to face face-to-face practical tests. The study respondents consisted of 166 Semester three students of the Construction Technology program at six vocational colleges in the state of Johor. The research instrument consists of 54 items that measure four constructs, namely preparation for online practical learning, online practical learning, the level of effectiveness of online theoretical learning and the level of effectiveness of online practical learning. The data obtained was analyzed descriptively to obtain frequency, percentage, mean and standard deviation values. The findings of the study found that the majority of students are ready to face practical learning online. The level of effectiveness of online theoretical and practical learning is at a high level. An initiative that can be done to improve online practical learning is that teachers need to master the latest online applications and offsite modules for student use need to be produced.
NEEDS ANALYSIS OF BASIC MODULE CONTENT FOR PROBLEM-BASED LEARNING APPROACH
Authors: Ahmad Zuki Ros Eliana , Razali Noormawati , Mohd Sharani Dzafira , Razali Siti Nur Aiza
Published: April 2024

In research on module development, a needs analysis study is conducted to ensure that the module produced can meet the needs and specifications of users. This study was conducted to identify the content requirements of the problem-based learning approach module, in an effort to improve the level of teacher mastery related to the problem-based learning approach. In order to create a digital module that can meet the needs of teachers as users, a needs analysis was conducted on five school teachers in the Kubang Pasu district. Data collection was done through semi-structured interviews and purposive sampling techniques were used in sample selection. Qualitative data from the interviews were categorized and analyzed to identify themes and make sense of the data. Data analysis has identified four main themes which are: (1) Teacher knowledge related to problem-based learning approach, (2) Teacher skills related to problem-based learning approach, (3) Teacher attitude related to problem-based learning approach, and (4) Characteristics The module expected by the teacher is simple, easy to understand and includes a demonstration video of the implementation of the problem-based learning approach. The needs analysis shows that the basic digital module of the problem-based learning approach has the potential to be developed. Apart from the four main themes identified, the suggestions and specifications obtained from the interviews provided useful information for developing the module content. These findings will be used to design and develop module content in the next phase. This discovery is expected to help produce a digital teaching module that is able to give ideas to teachers to apply a problem-based learning approach in the teaching and learning process, and further ensure a positive impact on students.
ENHANCING STUDENT KNOWLEDGE, MOTIVATION AND PERCEIVED EFFECTIVENESS: AN ANALYSIS OF THE IMPACT OF DIGITAL TECHNOLOGY
Authors: Mohd Shahril Aslinda , Sabtu Nurul Faezah , Sudirman Norsyahirah , Othman Nur Zalikha
Published: April 2024

This research paper explores the influence of digital technology on learning outcomes within the Faculty of Hotel and Tourism Management, Universiti Teknologi Mara. Focused on assessing the effectiveness of digital technology in enhancing students' learning performance, the study examines into the relationships between digital technology and student motivation, knowledge development, and perceived effectiveness. Employing a survey questionnaire, distributed among 140 students enrolled in the Faculty of Hotel and Tourism Management, the research relies on SPSS analysis to examine the data. The findings revealed a significant relationship between digital technology utilization and student motivation, knowledge development and perceived effectiveness, affirming the positive impact on student learning outcomes. The study highlights the potential of digital tools in fostering motivation, knowledge acquisition, and perceived effectiveness in the academic context. The implications of these results suggest the need for continued exploration in this area. As a recommendation for future research, the paper proposes further studies to delve deeper into the multifaceted dynamics between digital technology and learning outcomes within the realm of hotel and tourism management education.
A REVIEW OF THE JOB SATISFACTION THEORY FOR VOCATIONAL COLLEGE EDUCATION PERSPECTIVE
Authors: Mohd Rokeman Nor Roselidyawaty , Che Kob Che Ghani , Mohd Yaacob Mohd Nasir
Published: April 2024

Job satisfaction signifies a positive attitude toward tasks performed, fostering
confidence and enthusiasm among individuals as they engage in their work.
The concept of job satisfaction has been explored through various theories
relevant to vocational teachers. This paper aims to formulate a comprehensive
theory of job satisfaction, integrating variations in work values and perceived
job characteristics as key explanatory factors. The study delves into the
intricate relationship between job satisfaction and specific work-related
elements. Through a literature review analysis, relevant theories are selected to
map out the theory of job satisfaction and to understand the interplay between
Maslow's Theory and Herzberg's Two-Factor Theory. The findings
demonstrate that both Maslow's theory and Herzberg's Two-Factor Theory
influence job satisfaction within the organizational work environment of
vocational colleges. Furthermore, the extent to which individuals can attain
perceived job rewards is contingent on their level of control over their
employment circumstances. Additionally, this paper examines previous
theories related to teacher job satisfaction, providing valuable insights to
teachers regarding the influencing factors that shape their control over
achieving job satisfaction within the context of Malaysian Technical and
Vocational Education and Training (TVET) institutions.
RESEARCH ON KEY INFLUENCING FACTORS OF DT OF SMEs IN CHINA
Authors: Zhang Yujie , Idris Sidah , Lily Jaratin
Published: April 2024

With the new round of technological revolution and industrial transformation is accelerating and leading various aspects of society toward digital transformation (DT). With the widespread application of digital technologies such as big data and cloud computing, the DT process of enterprises is constantly accelerating, and disruptive changes have occurred in product services, business processes, and so on. This article provides a systematic review of existing research on DT and identifies the influencing factors from the organizational level, management level, and environmental level based on the Strategic Change framework of Rajagoralan &Spertizer (1997). Subsequently, an integrated analysis framework was proposed that includes five configuration factors: digital transformation infrastructure, employee skills, management support, market uncertainty, and technology uncertainty. This article not only deepens the understanding of the causal complexity issues behind the success of SMEs’ DT but also provides some beneficial insights for the practice of SMEs’ DT.
THE INFLUENCE OF HOME ECONOMICS (ERT) AMONG MALE SECONDARY SCHOOL STUDENTS IN JOHOR BAHRU
Authors: Zulkafli Siti Saidatul Asma , Mohd Ishar Mohamad Izzuan , Janius Naldo
Published: April 2024

This study was conducted to look at the influence of Home Economics (ERT) among boys' Middle School students in Johor Bahru. This study is focused on three research objectives, namely the level of student interest, the level of student knowledge, and the factors that encourage students to participate in the ERT program. A total of 155 students in the 1st, 2nd, and 3rd grades of Sultan Abu Bakar College, Johor Bahru were selected to be respondents in this study. This study uses a questionnaire method to obtain information from the respondents. The questionnaire that was used contains four parts to answer all the objectives of this study. The data from the study was analysed using the Statistical Package for Social Science (SPSS) version 28.0. The results of the study show that the knowledge and interest in the field of ERT among the male students of Maktab Sultan Abu Bakar, Johor Bahru are at a high level. The motivation factor for male students' involvement in the field of ERT also shows that peer influence recorded the highest mean and parental influence showed the lowest mean number. The researcher hopes that the results of the study can be used to further enhance the involvement of male students in the field of ERT. At the end of this study, the researcher put forward some suggestions for other parties to conduct further research in the future.
DESIGN AND EXPERIMENTAL STUDY OF PEANUT PLANTER WITH HIGH-SPEED OPERATION AND CONTROLLABLE SOWING DEPTH
Authors: LI Moxian , CHANG Xueliang , HE Xiaoning , ZHANG Ning , LIU Wei , LIU Zhixin , DONG Tongtong , SHANG Shuqi , WANG Dongwei , ZOU Maomao , LI Yunkang , MA Zhenjia
Published: April 2024

Aiming at the traditional peanut planter seed and fertilizer sowing depth inconsistency caused by seed burning and injury, fertilizer waste and low seed emergence rate, the design of a peanut planter with high-speed operation and controllable seed and fertilizer sowing depth was performed. The laser sensor is added to detect the height of the ridge and the furrow opener position feedback, and the speed sensor detects the operating speed of the peanut planter. The mechanical analysis of the four-link rod clarifies the control principle, improves the PID algorithm of the integral term, designs the control strategy based on the operating speed of the planter, controls the electro-hydraulic system, and realizes the sowing and fertilizing depth adjustment of the furrow opener. Through the design of three-factor three-level orthogonal simulation test, it is concluded that the vehicle speed and height deviation value are significant factors affecting the sowing and application depth, and under the verification of the field test, it is obtained that when the sowing depth is 50 mm under the speed of 3 km/h, the dynamic sowing depth qualification rate is 96.26%, and the maximum coefficient of variation of the sowing depth is 2.58%, which improves the effect of the existing control of the sowing depth of the peanut by 6.05%, and reduces the variation of the sowing depth by 2.85%. The research has demonstrated superior performance compared to traditional mechanical adjustment in regulating the planting depth of peanuts, thereby achieving the intended design objective.
Práticas corporais, masculinidades e homoerotismo
Authors: Devide Fabiano
Published: April 2024

Este estudo estabelece um diálogo entre os campos da Educação Física e da Arte Contemporânea. Tem por objetivo analisar e interpretar as relações entre práticas corporais e masculinidades, a partir da análise da série de fotografia Beach Triptychs, de Alair Gomes, na qual as práticas corporais se destacam e emergem referências à Arte Clássica, à religião e ao homoerotismo. Partindo dos estudos das masculinidades, analisamos as fotografias através da intercessão entre obra, artista, contexto histórico e Arte Contemporânea, além de considerarmos as noções de série, intertextualidade, enquadramento e dos espaços. A referida série amplia o olhar sobre a corporeidade masculina que se transformava nas praias do Rio de Janeiro, a partir do processo de subjetivação produzido pelo artista, que registrou um corpo masculino em ação corporal, tanto expressando virilidade e força, quanto desejo, tatilidade, intimidade e homoerotismo, esgarçando limites da heteronormatividade compulsória.
Pelatihan Pengelolaan Situs Web dengan Sistem Manajemen Konten dan Panel Kontrol Secara Daring
Authors: Wandy Wandy , Bhakti Muhammad Agni Catur , Stephen Daniel , Halim Enrico , Arifin Jauharul , Andini Verrani Yusti , Faruq Zaidan Fadlurohman
Published: April 2024

Sebuah situs web telah dibangun, dikembangkan, dan diluncurkan dengan konfigurasi dasar pada bulan Februari 2021 lalu di atas sebuah platform Sistem Manajemen Konten dan Panel Kontrol pada layanan host jasa Penyedia Layanan Internet di Jakarta. Proses selanjutnya adalah memberikan pelatihan kepada Pengelola situs web untuk dapat mengembangkan situs web ini secara mandiri. Situasi pandemi Covid-19 yang masih melanda memaksa aktivitas pelatihan pengelolaan situs web dilakukan secara daring demi kebaikan bersama menggunakan aplikasi Zoom. Pelatihan berlangsung 11 kali dalam periode Maret hingga Juni 2021. Pengelola situs web saat ini belum memerlukan tim dengan banyak orang yang perlu dilibatkan. Besar tim dapat menyesuaikan konten dan struktur web seiring sejalan dengan pengembangan situs di kemudian hari. Buku panduan pengelolaan situs web juga telah disusun, baik peruntukan cetak maupun elektronik dengan format Portable Document Format yang diamankan dengan sandi untuk kalangan terbatas.
Smartphone Security Awareness Kepada Siswa Madrasah Aliyah Negeri (MAN) 3 Tangerang
Authors: Subektiningsih Subektiningsih , Wulandari Irma Rofni , Astuti Yuli Astuti , Hartanti Ninik Tri , Aziza Rifda Faticha Alfa , Indrayani Rini
Published: April 2024

Untuk mewujudkan kesadaran dalam penggunaan smartphone tersebut dan menyebarkan di berbagai lini, maka dilakukan webinar terhadap siswa Madrasah Aliyah Negeri 3 Tangerang. Madrasah Aliyah Negeri (MAN) 3 Tangerang merupakan salah satu sekolah unggulan yang beralamat di Jl. Raya Mauk km. 16 Buaranjati Kec. Sukadiri, Tangerang, Banten. Webinar tentang smartphone security awareness ini dilakukan secara daring menggunakan zoom meeting. Tujuan dari webinar ini untuk meningkatkan kesadaran para siswa akan pentingnya keamanan smartphone yang digunakan. Cara mengelola perizinan akses dari setiap aplikasi yang diinstal di dalam smartphone dan teknik-teknik yang dapat diterapkan untuk mendukung keamanan smartphone. Kegiatan pengabdian masyarakat berupa webinar dengan media zoom dan dihadiri antara 200 siswa MAN 3 Tangerang telah terlaksana dengan baik dan menghasilkan pemahaman yang baik. Hal ini dibuktikan karena meningkatnya hasil kuis yang diberikan saat sebelum dan setelah pemberian materi webinar. Meskipun jumlah responden mengalami penurunan saat pengisian kuis pasca webinar tetapi hasil dari jawaban yang tidak peduli dengan keamanan smartphone menurun dari kuis pra sebanyak 141 dan hasil pasca webinar menjadi 55, sehingga mengalami kenaikan kepedulian sekitar 60%.
Pengembangan Sistem Pembayaran Sekolah Berbasis Client-Server Java RMI Pada SMK Al-Manar
Authors: Nugroho Catur , Sunoto Noto , Abdullah Syahid , Irawan Bei Harira
Published: April 2024

Cara melakukan pembayaran sekolah dengan berbasis client-server menjadikan alternatif dalam pengembangan sistem. SMK Almanar Islamic School merupakan sekolah kejuruan dalam kegiatan pembayaran dilakukan dengan cara langsung ke bagian administrasi, dalam mengamati cara ini siswa tidak secara langsung mengetahui tagihanya hingga diperlukan integrasi sistem dengan mengunakan dua atau lebih komputer agar dapat digunakan untuk menyajikan laporan pembayaran. analisa serta perancangan pengembangan aplikasi pembayaran dengan melakukan penyelesaian dengan aplikasi berbasis client-server. Aplikasi dikembangkan melalui RMI (Remote Method Invocation) sehingga memudahkan sistem melakukan integrasi data dari dua atau lebih penguna komputer terhubung dalam koneksi jaringan lokal. Bahasa pemrograman Java fasilitas interface dengan layanan MRI. Dengan dukungan fitur data MySQL sehingga memudahkan penyajian laporan.
Edukasi Kesehatan pada Ibu Mengenai Pentingnya Cuci Tangan Menggunakan Sabun Ketika Akan Berinteraksi dengan Bayi
Authors: Handayani Rini , Ramadhania Ramadhania , Anggara Taufik Rendi
Published: April 2024

Bayi adalah kelompok umur yang rentan untuk tertular penyakit menular. Salah satu cara penularan yang sering terjadi adalah melalui tangan atau saat berinteraksi dengan orang lain. Sebelumnya, belum pernah dilaksanakan edukasi kesehatan mengenai pentingnya cuci tangan menggunakan sabun Ketika akan berinteraksi dengan bayi di Desa Padang Kedeper. Tujuan kegiatan ini adalah untuk meningkatkan pengetahuan ibu mengenai pentingnya cuci tangan menggunakan sabun Ketika akan berinteraksi dengan bayi melalui edukasi kesehatan. Kegiatan ini dilakukan dengan menggunakan media poster sebagai media promosi kesehatan. Sasaran kegiatan adalah 20 ibu yang berdomisili di Desa Padang Kedeper. Tim akan mendatangi rumah ibu kemudian memberikan edukasi kesehatan. Hasil analisis menunjukkan ada perbedaan tingkat pengetahuan ibu sebelum dan setelah mendapatkan edukasi kesehatan
BINARY CHITOSAN/QUATERNIZED CHITOSAN VIA ELECTROSPINNING. MORPHOLOGY AND ANTIMICROBIAL ACTIVITY
Authors:   “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania, ANISIEI ALEXANDRU , ANDREICA BIANCA-IUSTINA ,   “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania, ROSCA IRINA ,   “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy, Iasi, Romania
Published: April 2024

The paper reports about binary chitosan/quaternized chitosan nanofibers obtained by direct electrospinning of their solution, without using co-spinning polymers. Both quaternary salts, N,N,N-trimethyl chitosan chloride and N-(2-hydroxyl) propyl-3-trimethyl ammonium chitosan chloride, were used in the electrospinning process and provided nanofibers with a mean diameter lower than 100 nm. A morphological evaluation of the nanofibers prepared with quaternized chitosan and chitosan of different molecular weights indicated that chitosan of lower molecular weight yielded fibers of higher diameter, due to the necessity to increase the concentration of the electrospinning solution in order to reach chain entanglement. Polarized light microscopy suggested that the fibers were semicrystalline in nature, in line with the ability of the macromolecular chains to align in an electrical field. Furthermore, the investigation of the antimicrobial and antifungal activities against relevant gram-positive and gram-negative bacteria, as well as yeast strains, revealed the strong effects of the nanofibers, improved by the presence of quaternary chitosan and the lower diameter of the fibers.
SURFACE FUNCTIONALIZATION OF KENAF FIBERS WITH
LAUROYL CHLORIDE: EFFECTS OF ALKALINE
PRETREATMENT METHOD
Authors:   Faculty of New Technologies and Aerospace Engineering, Shahid Beheshti University, Tehran, Iran, EBRAHIMI PAYLO , KOOSHA MOJTABA ,   Faculty of New Technologies and Aerospace Engineering, Shahid Beheshti University, Tehran, Iran, HAMEDI SEPIDEH ,   Faculty of New Technologies and Aerospace Engineering, Shahid Beheshti University, Tehran, Iran, VATANKHAH ELHAM ,   Faculty of New Technologies and Aerospace Engineering, Shahid Beheshti University, Tehran, Iran, SHIDPOUR REZA ,   Babol Noshirvani University of Technology, Babol, Mazandaran, Iran
Published: April 2024

Surface functionalization of cellulose fibers is the current focus of research seeking to develop composite materials for various applications. One reason is the low compatibility of natural cellulose-based fibers with thermoplastic matrices for the production of wood-plastic composites. In this research, kenaf fibers (KF) were esterified with lauroyl chloride. Before the esterification reaction, two alkaline pretreatment methods were used: Bain-Marie at low temperature, and at high temperature and pressure in the digester. SEM results showed a smoother surface morphology after esterification. ATR-FTIR results confirmed the substitution of hydroxyl groups of cellulose with lauroylate functional groups. Increasing the carbon content in EDX spectroscopy further supported the successful esterification of kenaf fibers, which is in accordance with ATR-FTIR findings. Based on ATR-FTIR and EDX results, the Bain-Marie pretreatment
method was more effective for the esterification reaction. According to the XRD results, the crystallinity index of the
fibers slightly increased after esterification reaction. However, the fibers pretreated in the digester had a higher
crystallinity index, which was related to efficient removal of amorphous regions due to higher temperature and pressure
used in the digester process. This research showed that alkaline pretreatment in Bain-Marie was more effective for the
surface functionalization of cellulose fibers than the digester process. These results can be applied in future research
works for esterification of cellulose fibers.
SYNTHESIS AND CHARACTERIZATION
OF LOW-COST PLASTICIZED POLYMERIC MEMBRANES FOR SEPARATION OF BIVALENT CATIONS
Authors:   Laboratory of Electrochemistry-Corrosion, Metallurgy and Mineral Chemistry, Faculty of Chemistry, University of Sciences and Technology Houari Boumediene (USTHB), PO Box 32, El Alia Bab Ezzouar 16111, Algiers, Algeria, MESROUK SAMIR , SADI FATMA ,   Laboratory of Electrochemistry-Corrosion, Metallurgy and Mineral Chemistry, Faculty of Chemistry, University of Sciences and Technology Houari Boumediene (USTHB), PO Box 32, El Alia Bab Ezzouar 16111, Algiers, Algeria
Published: April 2024

Recently, polymer inclusion membranes (PIMs) have surfaced as a viable solution for selective transport and metallic ions separation. The efficiency of such membranes is subject to a number of factors, including the preparation method and relevant physico-chemical characteristics. In this paper, an improvement of a novel category of PIMs for performing ions separation is reported. The membranes were prepared using a mixture of two polymers: cellulose triacetate (CTA) and poly(methyl methacrylate) (PMMA), three different carriers, Aliquat 336 (basic), di-(2-ethylhexyl) phosphoric acid (D2EHPA) (acid) and tributyl phosphate (TBP) (neutral) and plasticized by dioctyle phthalate (DOP). All synthesized membranes were characterized using Fourier Transform Infrared (FTIR) spectroscopy, Thermogravimetric Analysis (TGA) and Scanning Electron Microscopy (SEM). A study of the transport of Co(II), Cu(II), Ni(II) and Pb(II) species using the synthesized membranes was conducted. Our results indicate that facilitated transport through PIMs is an effective way of solving the permanent problem of membrane stability.
CHEMICALLY CROSSLINKED CELLULOSE-BASED HYDROGEL PREPARED FROM RICE STRAW FOR THE REMOVAL OF AQUEOUS HEXAVALENT CHROMIUM ION FROM WASTEWATER
Authors:   Faculty of Environmental Sciences, University of Science, Vietnam National University Ho Chi Minh City, Campus 1, 227 Nguyen Van Cu Std., Ward 4, District 5, Ho Chi Minh City, Vietnam, TRUONG TRANG THI CAM , BAM VO VAN ,   Faculty of Environmental Sciences, University of Science, Vietnam National University Ho Chi Minh City, Campus 1, 227 Nguyen Van Cu Std., Ward 4, District 5, Ho Chi Minh City, Vietnam, LE THI ANH PHUONG ,   Department of Science of Technology, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan, PHAN NGAN THI THU ,   Department of Science of Technology, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan, KOBAYASHI TAKAOMI ,   Department of Science of Technology, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan, NGA DUONG THI THUY ,   Ho Chi Minh City University of Natural Resources and Environment, 236B Le Van Sy Street, Tan Binh District, Ho Chi Minh City 70000, Vietnam, NGUYEN KHOA DANG ,   Faculty of Environment, Van Lang University, Ho Chi Minh City 70000, Vietnam
Published: April 2024

Then, this purified cellulose was co-polymerized by the addition of acrylic acid and ammonium persulfate in the presence of N,N-methylenebisacrylamide as crosslinker to form a cellulose-based hydrogel for the removal of hexavalent chromium (Cr(VI)) from wastewater. Here, the impact of various parameters, such as pH, contact time, material dosage, and initial solution concentration, on the adsorption capacity of the hydrogel for Cr(VI) ions is systematically investigated. The experimental findings revealed that the highest adsorption capacity for the treatment of Cr(VI)-containing water reached 1.1 mg Cr(VI)/g at pH 1, contact time of 120 min, and the initial concentration in the aqueous solution of 10 mg/L for an applied adsorbent dosage of 0.2 g. In addition, the equilibrium adsorption data agreed well with the Langmuir isotherm and the maximum adsorption amount was 4.14 mg Cr(VI)/g. Additionally, this material demonstrated good reusability, supporting the notion that it can be efficiently regenerated for multiple uses, a crucial factor for its practical application towards reducing the environmental impact and increasing its economic value.
Sosialisasi Perpajakan: Membangun Jembatan antara Kesadaran dan Pengetahuan Pajak Menuju Kepatuhan Pajak Bumi dan Bangunan
Authors: Ismau Daymiliana Astrivani , Safriliana Retna , Parawiyati Parawiyati
Published: April 2024

Data on the realization of Land and Building Tax revenue in Niukbaun Village has not met the target set by the Regional Revenue Agency Office of Kupang Regency from 2019 to 2022. This research aims to evaluate the role of tax socialization as a moderator of the relationship between tax awareness and knowledge and taxpayer compliance. In this research the author used a research design with a quantitative approach. The location of this research was carried out in Niukbaun Village, West Amarasi District, Kupang Regency, East Nusa Tenggara. Respondents in the research were all people who paid PBB in Niukbaun Village, West Amarasi District, Kupang Regency, totaling 1,373 taxpayers. Data processing uses SPSS. The research results show that the tax socialization variable moderates tax awareness on tax compliance and tax knowledge on tax compliance. The implications of this empirical evidence indicate that the tax socialization program carried out is able to encourage tax compliance so that this program can be implemented continuously.
Asociación entre la administración de hierro durante el embarazo y el tamaño del niño al nacer en población peruana
Authors: Guevara-Tirado Alberto , Mendoza-Merino Marisol , Sivincha Quispe Mariella R.
Published: April 2024

Objetivo: Evaluar la asociación entre el haber recibido hierro durante la gestación y el tamaño del niño al nacer en la población peruana. Materiales y métodos: Estudio descriptivo, retrospectivo y transversal basado en información obtenida de la base de datos del instituto nacional de estadística e informática (INEI), referente a la encuesta demográfica y se salud familiar (ENDES) del año 2021 que incluyo una muestra bietápica, probabilística, estratificada e independiente diseñada para ser representativa a nivel nacional. Las variables consideradas fueron si la paciente recibió o no algún suplemento de hierro durante el embarazo y el tamaño del niño al nacer. Para el análisis de asociación se realizó la prueba Chi-cuadrado de Pearson por medio del software SPSS statistics 25. Resultados: 51.10% de gestantes que tomaron suplementos de hierro tuvieron niños con peso normal, 46.50% de gestantes que nunca tomaron suplementos de hierro tuvieron niños con peso normal. Las madres en cuya gestación no consumieron suplementos de hierro hubo más recién nacidos con tamaño pequeño (23.70%) y muy pequeño (4.40%) que en quienes si tomaron suplementos de hierro (19.10% y 2.70%) estas variables se asociaron significativamente (p valor de=0.000 a un nivel de significancia de p <0.05). Conclusión: El tamaño del recién nacido durante el parto se relaciona con el consumo de hierro en mujeres de la población peruana.
Calculation of the interaction between an overlapping spherical lens and a pin-type second optical element for spherical lens microtracking concentrator photovoltaic with a wide angle of incidence
Authors: Nakatani Masakazu
Published: April 2024

Concentrator photovoltaics (CPV) can efficiently convert light into electricity; however, conventional CPVs require large and heavy tracking systems. Microtracking CPVs (MTCPVs) can solve this significant problem. Most MTCPV systems have a limited angle of incidence (AOI). If diffuse light was used, MTCPV required traveling light from top to bottom. In this study, a spherical-lens-based microtracking CPV (SMTCPV) with a pin-type second optical element (SOE) was developed. In SMTCPV, the light travel light from above to below. Pin-type SOEs were inserted between the spherical lenses, thus increasing the acceptable wide AOI. Optical analysis and calculations of the interaction between overlapping spherical lenses and pin-type SOEs were performed. An optical efficiency of 59% was maintained at any angle when the gap was considered. The maximum AOI was 64.7° in the direction of adjacent spherical lenses and 90° in the gap direction.
Association of rs9939609 FTO Gene Polymorphism as a Risk Factor of Obesity in Adults
Authors: Pratamawati Tiar Masykuroh , Sadji Angel Angriani Elma Budai , Brajadenta Gara Samara , Nauphar Donny
Published: April 2024

Background: The cause of obesity is an imbalance between the number of calories taken and the amount burned. Obesity is a complex disease. The FTO rs9939609 gene polymorphism is one of the genetic factors that contribute to obesity in addition to environmental factors. Numerous researches have suggested a connection between the prevalence of obesity and the FTO rs9939609 gene polymorphism
Aims: The purpose of this study is to ascertain how the FTO rs9939609 gene polymorphism relates to the prevalence of adult obesity.
Methods: At the Biomolecular and Genetics Laboratory of the UGJ Faculty of Medicine, an analytical observational study using a case-control design was carried out with 84 participants, 42 subjects in case group, and 42 subjects in control groups. Data were collected utilizing DNA from blood collection, PCR-RFLP for genotyping, and 2.5% electrophoretic gel for visualization. Chi-square was used for data analysis.
Results: Findings showed that there is no link between the FTO rs9939609 polymorphism and the prevalence of obesity (p>0.05, OR=0.710).
Conclusion: In the Indonesian population, the FTO rs9939609 gene polymorphism is not associated with an increased risk of obesity.
Pumpkins (Cucurbita spp.) diversity and their associated microbiota
Authors: AYDI BEN ABDALLAH Rania , Chikh-Rouhou Hela , Jabnoun-Khiareddine Hayfa , Daami-Remadi Mejda
Published: April 2024

Root-associated microbiota play a key role in plant growth, resilience, and health. In this study, the microbial community structure in the rhizosphere of 12 pumpkins accessions belonging to three Cucurbita species i.e. C. pepo, C. maxima, and C. moschata, was monitored using the soil dilution plating technique on specific media. All accessions tested were also screened for their production and yield parameters. Based on Principal Component Analysis (PCA), 4 accessions of C. maxima (namely C5, C23, C14.2 and C6.2) were characterized by the greatest average fruit weight and yield, the highest actinomycetes, bacterial, Trichoderma spp. and Aspergillus spp. communities, and the lowest total fungal population in their rhizosphere. Positive correlations were noted between fruit fresh weight, culturable bacteria and Trichoderma spp. populations in the rhizopshere of pumpkins accessions. Negative correlations were noted between fruit weight and yield parameters and the total culturable fungal populations. The current study clearly demonstrated that the rhizosphere soil microbial communities have been shaped by Cucurbita species and accessions. Based on the significant links observed between soil microbiota and yield parameters, future pumpkin breeding programs could be focused on the selection of accessions that are quite able to exploit these associated beneficial microbial communities.
Daily Experiences of Married Women Regarding Domestic Violence in the Commune of Matete, Democratic Republic of Congo
Authors: Dimbu Honorine Kiala , Bukasa Augustin Kadiata , Kalungwishi Michaelle Mambwe , Novi Nene Kabyahura , Kankolongo Aline Mulunda , Christine Tshilembi Beya , Ntumba Rose Mujinga , Brigitte Mena Nkanshama , Astrid Kabanga Kashala , Kalenga Jean-Paul Kasombo
Published: April 2024

Introduction: Domestic violence can take several forms: physical, sexual, psychological or economic. It occurs between partners or former partners in an intimate relationship, regardless of whether the perpetrator shares or has shared the same home as the victim. The aim was to understand the daily experience of married women in the city and province of Kinshasa, whether they experience violence within couples. Methods: This study falls into the field of public health, more precisely it deals with the protection of women's rights. It is a qualitative study, approached in its phenomenological approach. The target population is made up of married women attending the Matete New Alliance Hospital Center whose sample size is 11. It was determined after collecting the data, the redundancy of which was observed at the 10th head of household. Results: the marriage of a violent partner represents a stumbling block for women and an obstacle to women's emancipation; In their union sexual violence, physical violence or torture, deprivation of financial means (financial violence); They encountered consequences such as gastritis, tension disorders, neurosis. As for coping strategies in the face of violence: the women interviewed resort to spiritual support by relying on God, dialogue with their partner, entertainment and asking friends for advice. As for expectations, women want the Congolese State to create schools for the re-education of husbands and for educators (parents and churches) to give advice to young people before marriage. Conclusion: It is important for the Congolese State, families, schools and churches to establish/reinforce the notion of initiating men to good behavior in marriage.
ANALISIS KUAT TEKAN MUTU BETON K225 MENGGUNAKAN LIMBAH PECAHAN BETON DAN SIKA TILEFIX-200TA
Authors: Mulyadi Asri , Suanto Pengki , Hermantoni Hermantoni
Published: April 2024

Beton adalah campuran dari agregat halus dan agregat kasar (pasir, kerikil, batu pecah, atau jenis agregat lain) dengan semen yang dipersatukan oleh air dalam perbandingan tertentu dicampur bersama-sama sampai campuran menjadi homogen dan bersifat plastis sehingga mudah untuk dikerjakan. Salah satu bahan yang dapat digunakan sebagai bahan pengganti penyusun beton adalah Sika Tilefix-200TA serta menggunakan kembali limbah pecahan beton untuk penggunaan beton baru, menjadi alternatif bahan beton yang menguntungkan, karena agregat yang digunakan adalah agregat yang telah dibuang. Dengan pertimbangan tersebut, maka dilakukan penelitian mengenai kuat tekan mutu beton K225 menggunakan limbah pecahan beton dan Sika Tilefix-200TA. Penelitian ini bertujanUntuk mengetahui pengaruh kuat tekan beton pada masing-masing variasi pengganti semen dan koral pada campuran beton yang menghasilkan kuat tekan optimum dan agregat halus (pasir) dari sungai musi, sedangkan agregat kasar dari lahat. Pada penelitian ini benda uji dicetak dengan menggunakan kubus baja ukuran 15cm x 15cm x 15cm, masing-masing umur yaitu 7 hari, 14 hari, 21 hari dan 28 hari dengan pengujian kuat tekan beton. Pada campuran beton K.225 tersebut dibuat campuran pengganti semen yang berfariasi yaitu dengan campuran limbah pecahan beton dan SIKA TILEFIX-200TA 0% (normal), campuran limbah pecahan beton dan SIKA TILEFIX-200TA 10%, campuran limbah pecahan beton dan SIKA TILEFIX-200TA 20% dan campuran limbah pecahan beton dan SIKA TILEFIX-200TA 30% dari berat koral dan semen. Beton yang mencapai umur 28 hari karena pada umur ini menurut PBI 1974, kekuatan beton telah mencapai 100%. Dari evaluasi hasil uji kuat tekan yaitu pada beton normal dengan umur 28 hari didapat kuat tekan beton sebesar 223,43 kg/cm2, pada campuran pengganti semen 10% dengan umur 28 hari didapat kuat tekan beton sebesar 200,78 kg/cm2, pada campuran pengganti 20% dengan umur 28 hari didapat kuat tekan beton sebesar 175,12 kg/cm2 dan campuran pengganti semen 30% dengan dengan umur 28 hari didapat kuat tekan beton sebesar 157,00 kg/cm2. Dari hasil evaluasi kuat tekan beton yang menggunakan limbah pecahan beton dan Sika Tilefix-200TA pengganti sebesar 10%, 20% dan 30% tidak mempunyai kuat tekan yang melebihi dari beton normal.
PENGARUH PENGGUNAAN BATA RINGAN DAN BATA MERAH TERHADAP BANGUNAN BERTINGKAT 2 LANTAI
Authors: Sutama Adji , Irawan Teddy
Published: April 2024

Pemilihan material konstruksi pada sebuah proyek bangunan sangat penting karena memiliki dampak besar terhadap kinerja dan keberlanjutan struktural bangunan tersebut. Keputusan ini merupakan bagian dari keputusan strategis dalam desain bangunan, di mana pemilihan material seperti bata ringan dan bata merah menjadi aspek yang sangat vital. Pilihan tersebut tidak hanya memengaruhi karakteristik mekanis, termal, dan akustik bangunan bertingkat, tetapi juga berdampak pada kemampuan bangunan dalam menahan beban, berinteraksi dengan suhu sekitar, dan meredam suara. Pentingnya pemilihan material konstruksi ini menunjukkan bahwa keputusan teknis ini tidak hanya bersifat praktis, tetapi juga berperan dalam mencapai tujuan desain dan fungsionalitas bangunan secara menyeluruh. Tujuan penelitian ini adalah untuk membandingkan berat bangunan, gaya dalam, dan luas tulangan yang timbul dari penggunaan bata ringan (sebagai model A) dan bata merah (sebagai model B) terhadap bangunan bertingkat dua lantai dengan menggunakan bantuan program SAP2000 versi 14. Berat bata ringan dan bata merah masing-masing yang digunakan sebesar 57,5 kg/m2 dan 250 kg/m2. Hasil penelitian menunjukkan bahwa penggunaan bata ringan menghasilkan pengurangan nilai gaya dalam yang sangat signifikan dengan penurunan nilai momen sebesar 35,8%, gaya aksial sebesar 23,7%, dan berat bangunan sebesar 30,6% jika dibandingkan dengan bata merah. Luas tulangan yang dihasilkan oleh bata ringan relatif lebih kecil, sehingga penggunaan bata ringan memiliki dampak positif pada kinerja struktural dan efisiensi bangunan.
Analisa Kuat Tekan Beton K 300 Dengan Penambahan SikaCim Concrete
Authors: Trisnawati Ice , Hidayat Wahyu Handoyono , Ismail Ayu , Korizon Korizon
Published: April 2024

Perkembangan industri beton di Indonesia sangatlah maju dan berkembang. semakin meningkatnya pembangunan di suatu negara maka penggunaan material konstruksi menjadi semakin meningkat. SikaCim Concrete additive adalah obat beton/admixture high range water reducing yang diformulasikan khusus untuk industri beton. Water reducing dan superplasticizer yang sangat efektif untuk mempercepat proses pengerasan dengan karakteristik workability tinggi pada beton. Penelitian-penelitian telah banyak dilakukan untuk memperoleh suatu penemuan alternatif penggunaan konstruksi karena beton merupakan unsur yang sangat penting, mengingat fungsinya sebagai salah satu pembentuk struktur yang paling banyak digunakan oleh masyarakat. Beton adalah material konstruksi yang pada saat ini sudah sangat umum digunakan. Pentingnya peranan konstruksi beton menuntut suatu kualitas beton yang memadai. Salah satu faktor yang harus dijaga untuk mencapai tujuan pengelolaan tersebut adalah penggunaan material konstruksi yang baik. Karena struktur beton praktis selalu ada disetiap infrastruktur di Indonesia, maka penelitian untuk menemukan kualitas beton yang lebih baik dan lebih tepat sesuai dengan kebutuhan harus selalu dilakukan. Tujuan penelitian ini adalah untuk mengetetahui kuat tekan beton dengan penambahan SikaCim Concrete pada mutu beton K 300. Metode yang digunakan dalam penelitian adalah SNI 63- 2834-2000 tata cara pembuatan campuran beton normal. Kesimpulan dari hasil pengujian didapat nilai kuat tekan beton normal (BN) umur 28 hari sebesar 301,38 kg/cm2 lebih besar dari kuat tekan beton rencana yaitu 300 kg/cm2 dan nilai kuat tekan beton terbesar dengan penambahan SikaCim Concrete sebesar 2,0% (BSC.2,0) umur 28 hari sebesar 329,33 kg/cm2.
ANALISIS KINERJA BIAYA DAN WAKTU PROYEK PEMBANGUNAN SALURAN KANTOR PEMDA – EXIT TOL KEBOMAS GRESIK DENGAN MENGGUNAKAN METODE EARNED VALUE
Authors: Gupita Princes Annastacia Ocha , Firdaus Andrian Yusuf
Published: April 2024

One of the supplementary structures rod ways that statisfies a technical need for road infrastructure is the drainage channel. The construction of the canal in this project was carried out from 01 July 2020 to 12 December 2020. With a contract value of Rp.4,339,944,950.06 and was carried out by the Contractor CV.Batu Mas. This project shows quite high progress, reaching 40.73% of project construction realization in the 11th week, while the planned progress of the project only reached 19.15% in that week. But time and money management are necessarry for the implementation circumstances in any project. Before using this control measure, the project’s performance must be known.The Earned Value method is one way to find out the Project Result Value. Combining schedule, cost, and job performance is the way to do this method.The performance in the project is influenced by several things. One of these things is used by means of a SWOT analysis. SWOT analysis is useful for knowing what variables affect project performance.
FACTORS PERSUADING THE SAMBALPURI WEAVING COMMUNITY TO WORK FOR A MASTER WEAVER: A CASE STUDY OF SUBARNAPUR DISTRICT, ODISHA
Authors: Rakesh Meher  , Himanchal Naik  , Tanmaya Nag
Published: April 2024

The country was recently hit by COVID-19, which left the informal handloom workers completely stranded, with the lockdown imposed putting lakhs of handloom weavers lives and livelihoods at risk. In this context, the current study aims to investigate the impact of pandemics and lockdown on the income level of the Sambalpuri weaving community. The field research is being conducted in ten villages in Odishas Subarnapur district. It is found that as there are no cooperative societies, weavers are reliant on master weavers, who pay meagre wages and find it difficult to feed their families and attend to medical emergencies. Using Henry Garrett Ranking and Kendall coefficient of Concordance, we attempt to investigate the dominance factor that forced them to work under the master weavers control. The most significant reasons, according to the findings, are a lack of working capital and loans obtained from the informal sector.
KEYWORDS: Handloom, Garrett Ranking and Kendalls Concordance, Income.
Subject classification codes: C14, E26
ANCIENT EGYPTIAN METAL ARTIFACTS: LASTING FOR THOUSANDS OF YEARS AGAINST CORROSION
Authors:   Physical Chemistry Department, National Research Centre, Egypt, 33 El Bohouth St., Dokki, Giza, Egypt-P.O.12622, EL-MELIGI Amin A.
Published: April 2024

Metals were used to make artifacts and medical tools in ancient times. This review article focuses on the gold and silver metal artifacts of the ancient Egyptian and their protection against corrosion. There is no doubt that Egypt is an open museum because the ancient Egyptians planted the monuments everywhere in the deserts. There are many types of artifacts, such as statues, jewelries, furniture, weapons, paints, etc. They have used different types of materials to make all these monuments, such as marbles, wood, stones, metals. They have used different types of metals, such as gold, silver, iron, and copper. The museums in Egypt accommodate huge number of metals artifacts. Ancient Egyptian produced fine and gorgeous artifacts, especially rings, bracelets, and necklaces. The artifacts were created to be resistant to degradation and corrosion over a long period of time. They have used different ways of protection, such as paints, alloying, chemicals etc.