International Journal of Membrane Science and Technology最新文献

{"title":"Development of Research Competences in University Professors: A Bibliographic Review","authors":"Manuel Antonio Cardoza Sernaqué, Montenegro Camacho Luis, Mercedes Alejandrina Collazos Alarcon, Víctor Alejandro García Farías, Omar Bellido Valdiviezo, Jairo Jaime Turriate Chávez","doi":"10.15379/ijmst.v10i3.1790","DOIUrl":"https://doi.org/10.15379/ijmst.v10i3.1790","url":null,"abstract":"The research aimed to analyze the contribution of scientific publications regarding the study of the development of research skills in university professors. The bibliographic review and documentary analysis of scientific articles published in different scientific databases were used as a study method. For the theoretical approach regarding the definition, importance and classification of research competences in university professors, the contributions of researchers who have published scientific articles in different databases were used; and for the study of background, the articles published in the Scopus database between 2018 and 2022 were used as a source of information. It was concluded that there are different studies that address the importance of developing their research skills in university teachers, which are associated with the improvement of their professional profile, teaching conditions in the training of professionals and their contribution to increasing the scientific production of universities through the formulation of scientific research and technological development projects and the publication of scientific articles in academic databases.","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":"190 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132602234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Resilience of Urban Poor Community to COVID-19 Disaster in Panjang, Bandar Lampung, Indonesia","authors":"Dewi Ayu Hidayati, Yulianto, Bambang Utoyo, Mohammad Muhassin","doi":"10.15379/ijmst.v10i3.1788","DOIUrl":"https://doi.org/10.15379/ijmst.v10i3.1788","url":null,"abstract":"This study aims to explore the resilience capacity of the urban poor in Panjang subdistrict, Bandar Lampung Indonesia in dealing with the COVID-19 disaster in terms of preparedness, adaptation and mitigation capacities. This is a kind of descriptive qualitative research employing in-depth interviews and observation as data collecting techniques. The data analysis comprised data reduction, data presentation, and drawing conclusions. The findings indicated that community resilience to COVID-19 was marked by the capacity for preparedness, adaptation and mitigation involving various components of society, such as civil servants, community leaders, religious leaders, youth leaders and the COVID-19 task force. These components serve as a role model for the urban poor and have a major influence on their efforts to survive during a pandemic. The findings of this research highly emphasize the importance of collaboration between elements of society to increase their resilience capacity in dealing with the COVID-19 disaster and make a real contribution to achieving health development during a pandemic.","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115217496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Innovation in Content Design and Construction Path of University Physical Education Teaching Based on Mathematical Model Evaluation","authors":"Chuanzhong Wu, J. Xie, Yuchao Cao, Li Xu, Cheng Li","doi":"10.15379/ijmst.v10i3.1784","DOIUrl":"https://doi.org/10.15379/ijmst.v10i3.1784","url":null,"abstract":"Physical education is an indispensable educational content for cultivating qualified talents. Implementing the educational concept of \"cultivating morality and cultivating talents\" in college physical education classrooms, combining skill teaching with physical exercise, improving students' cognitive level of sports and health, integrating ideological and political teaching content into public physical education courses, emphasizing student process evaluation, using new technological means, and increasing the assessment of students' extracurricular physical exercise. Relying on student sports club activities, Sunshine Sports Alliance, sports team training and competition activities, strengthen the construction of the \"second classroom\", investigate students' learning attitude and moral quality, pay attention to path innovation, use research and mathematical evaluation analysis methods, calculate the elements and weights of the cultivation of teaching ability of college physical education, and try to establish the teaching content structure and evaluation system of public physical education.  ","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122656065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effect of Absorbed Dose and Chemical Composition On the Ionic Conductivity of 1-Vinylimidazole-Grafted PVDF Membranes Made Via Y-Ray Induced Grafting","authors":"A. Lepit, M. Mustaffa, N. Jaafar, N. A. Aini","doi":"10.15379/ijmst.v10i2.3243","DOIUrl":"https://doi.org/10.15379/ijmst.v10i2.3243","url":null,"abstract":"The effect of ?-ray on the copolymerization of 1-Vinylimidazole (VIm) onto polyvinyl fluoride (PVDF) is dependent on the absorbed dose, various solvents, and Iron concentration (II). Using radiation-induced grafting techniques, develop an alternative proton-exchange membrane (PEM) based on PVDF as the primary polymer and VIm as the monomer. Gravimetric analysis, FTIR, and conductivity investigation were utilized to characterize the physico-chemical properties of the grafting membrane. PEM, also known as PVDF-g-P1VIm, was synthesized and functionalized by sulfuric acid doping. The proportion of dose absorbed, the degree of grafting (DG), the ion exchange capacity (IEC), and water uptake (WU) all correlate with the membrane grafting performance. The C-H bonds exhibited decreased intensity and the peak location moved considerably in FTIR, indicating PVDF-VIm grafting. DG and IEC influence the ionic conductivity of the grafting PEM. The grafted membranes proved to have humidity dependent on proton conductivity with a range of 0.136 mScm-1 (room temperature) and 3.02 mScm-1 (373 K) containing IEC levels of 0.065 and 0.107 meq./g, respectively. PVDF-g-P1VIm membranes exhibit potential in the field of PEM membranes for use in hydrogen fuel cells or water treatment.","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":"161 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139347505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Degradation of Kapok Fiber-Reinforced Polyester Composites with Calcium Carbonate Filler in Seawater","authors":"Lalu Nata Suprayadi, Jauhar Fajrin B","doi":"10.15379/ijmst.v10i2.3235","DOIUrl":"https://doi.org/10.15379/ijmst.v10i2.3235","url":null,"abstract":"This research investigates the development of polyester composites reinforced with kapok fiber and CaCO3 filler to reduce environmental impact. Natural fibers, valued for their lightweight, fire resistance, cost-effectiveness, and biodegradability, are commonly used in composites. However, synthetic fibers, despite their superior mechanical properties, raise environmental concerns. The study focuses on the composites' performance, stability, and endurance in harsh conditions. Kapok fibers were manually extracted, and CaCO3 powder was sieved to 80 mesh. Composite samples were created with varying volume fractions of CaCO3 powder and kapok fibers, using polyester as the matrix. Tensile and bending tests, according to ASTM D3039 and ASTM D790 standards, were conducted on these samples. Additionally, water absorption was assessed gravimetrically, and mechanical strength degradation was studied via immersion in artificial seawater at different temperatures. Results indicated that water absorption increased with higher fiber volume fractions in the composite, primarily due to the water-absorbing capabilities of natural fibers and CaCO3 particles, surpassing that of polyester resin. Increased immersion temperatures accelerated water diffusion, impacting interactions between water molecules, polymer chains, and natural fibers. Furthermore, an increase in the CaCO3 filler volume fraction negatively affected the mechanical strength of kapok polyester-fiber composites. This was attributed to the agglomeration of CaCO3 powder, disrupting the polyester resin's viscosity and damaging the bond between kapok fiber and the matrix. The composites exhibited their highest tensile strength with 10% CaCO3 filler before immersion, but this strength decreased following exposure to high temperatures.","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139347264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effect of Speaking Anxiety on EFL Saudi Learners' Performance","authors":"Alia Sa’ad Eldin Abusahyon, Retaj Ali Almukhales, Shatha Saeed Makhashen, Renad Ebraheem AlHarthi","doi":"10.15379/ijmst.v10i3.3233","DOIUrl":"https://doi.org/10.15379/ijmst.v10i3.3233","url":null,"abstract":"Anxiety plays a significant role in students' oral performance and achievement in EFL speaking classes. This study applied a mixed-method approach using a questionnaire and semi-structured interviews in order to investigate tertiary level students' English language anxiety at Najran University. It also examines its main causes. In addition, it explores the effects of anxiety on students' performance in EFL classrooms and the role of gender differences on the level anxiety. The study reveals that the main factors that contribute to EFL speaking anxiety among Saudi EFL students are fear of negative evaluation, fear of interaction, fear of perception of others and lack of confidence, respectively. The study also found that female students were more anxious compared to male students in EFL speaking classrooms. In addition, it showed a negative connection between FLA and students' performance in speaking classes in that high-level anxiety students experience poor speaking performance. The study implicates the role of speaking teachers in reducing the anxiety among students.","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":"103 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139347767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Degradation of Polyester Composite Reinforced E-Glass Fiber with Calcium Carbonate Filler in Seawater","authors":"Mohamad Nasir, J. Fajrin","doi":"10.15379/ijmst.v10i2.3240","DOIUrl":"https://doi.org/10.15379/ijmst.v10i2.3240","url":null,"abstract":"This research is concerned with composite materials that use CaCO3 as a reinforcing material in construction, especially subsea panels and buildings. Composite materials are solids composed of two or more materials that have their own properties and improve their properties when combined. In this experiment, glass fiber and CaCO3 were mixed in a certain composition and tested to evaluate the water absorption and mechanical strength of the composite. The results show that increasing temperature can increase water absorption, while the addition of CaCO3 has a significant effect on water absorption due to its hydrophilic properties. Water absorption in polyester composites is influenced by aging temperature and Calcium Carbonate powder filler, affecting tensile and bending strength. As aging temperature increases, mechanical strength decreases, composite having the highest tensile strength. Bending tests show debonding and splitting fault patterns due to glass fiber arrangement. With a deeper understanding of how CaCO3 affects composite materials under various conditions, this research can provide valuable insights for developing more durable composite materials suitable for construction applications, especially in corrosive environments such as subsea buildings.In this research, it proposes theoretically model to controlling on half-wave voltage of modulator, in which it uses studying the factor of effective of refractive index difference, this using analysis distribution of refractive index for LN material before and after voltage is applied (i.e., with and without applied voltage), and uses analysis a factor of propagation constant difference ??, before and after voltage is applied where it depends on the wavelength, these leads to it controls on the half-wave voltage V? using a reduction half-wave voltage up to 1V. Also, it achieves an excellent solution for solve the fundamental optical mode with effective factor is neff. Finally, the modulator with an effect effective refractive index difference have lower applied voltage up to 10V, and with an effective propagation constant difference the operating voltage is from value of 20V.","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":"104 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139347421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Competitive Framework for Mineral Beneficiation and Value Addition in Zimbabwe","authors":"John Laisani, Francis Amponsah Dacosta, Antoine F Mulaba-Bafubiandi","doi":"10.15379/ijmst.v10i2.3234","DOIUrl":"https://doi.org/10.15379/ijmst.v10i2.3234","url":null,"abstract":"The development of mineral beneficiation and value addition has the potential to drive sustainable socioeconomic development in Zimbabwe. However, the country has been facing challenges in fully leveraging its mineral resources endowment for economic growth. This paper aims to address this issue by presenting a comprehensive framework for mineral beneficiation and value addition in Zimbabwe. The framework was developed using a mixed-methods approach that involved a literature review, stakeholder consultations, and data analysis. The objectives of the framework are to enhance mineral beneficiation and value addition, promote sustainable socioeconomic development, and create economic opportunities for local communities. The framework comprises a set of strategies and policies aimed at addressing the challenges facing the mineral sector, including inadequate infrastructure, limited technological capacity, and inadequate financing. The framework also emphasizes the need for stakeholder collaboration, human capacity building, and the adoption of environmentally sustainable practices. The paper concludes by highlighting the potential benefits of the framework, including increased employment, foreign exchange earnings, and overall economic growth, and calls for its adoption by policymakers and stakeholders in Zimbabwe.","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":"56 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139347444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Parents Role in Providing Health Care for Their Children (Analytical Study of Smoking Parents and Children)","authors":"Laith Alosoufe, Feda’a Al_Shatnawi, Hayat Abu-Shaika, Suad S. Jakalat","doi":"10.15379/ijmst.v10i2.3242","DOIUrl":"https://doi.org/10.15379/ijmst.v10i2.3242","url":null,"abstract":"The health consequences of smoking are well-known, and yet, children continue to smoke, placing their health and well-being at risk. Parents of smoking children play a crucial role in facilitating healthcare for their children and promoting healthy habits. However, caring for smoking children can be challenging, and parents who smoke face several unique challenges when providing healthcare for their children. This study aimed to explore the challenges faced by parents of smoking children when providing healthcare for their children and to identify potential intervention strategies that can facilitate better healthcare provision. A qualitative research design was used, and semi-structured interviews were conducted with 15 parents who had smoking children. Thematic analysis was performed to identify common patterns and themes in the data. The study found that parents face several challenges when caring for their smoking children, including difficulty in communicating with their children about smoking, worry about the negative health effects of smoking, difficulty in accessing healthcare services, inadequate parental education, and limited availability of family-friendly work environments. Parents highlighted the need for multi-pronged approaches to address these challenges, including parental education programs, health promotion campaigns, policy advocacy, and the use of technology. Parental education programs can empower parents by providing them with knowledge and skills to manage and prevent smoking in their children. Health promotion campaigns can reinforce the benefits of healthy habits and promote a smoke-free environment. Policy advocacy can facilitate changes in policies and regulations to improve healthcare access and support family-friendly work environments. The use of technology, such as telemedicine, can provide parents with access to healthcare services from the comfort of their homes. In conclusion, caring for smoking children can be challenging for parents who smoke. This study highlights the need to develop tailored intervention strategies to address the challenges faced by parents and to improve healthcare provision for smoking children. The recommended intervention strategies can help parents to better manage and prevent smoking in their children and promote healthy habits, leading to improved health outcomes for smoking children. Further research is needed to evaluate the effectiveness of these intervention strategies in improving healthcare provision for smoking children.","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":"126 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139347810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring ChatGPT and Higher Education Practice in Indonesia","authors":"Yusuf, Hudaya, W. J. Abdu","doi":"10.15379/ijmst.v10i3.1777","DOIUrl":"https://doi.org/10.15379/ijmst.v10i3.1777","url":null,"abstract":"The rapid advancement of artificial intelligence (AI) technologies has brought about disruptive changes in various industries, including higher education. Among these transformative technologies, ChatGPT has emerged as a powerful tool that has captured the attention and enthusiasm of students in higher education institutions. While students embrace this AI-based tool, educators find themselves in a state of unease, unsure of how to navigate the uncharted territory of integrating such technologies into their teaching practices. In Indonesia, a country that has witnessed previous technological disruptions in higher education, the introduction of AI technologies, particularly ChatGPT, has placed practitioners in a dilemma regarding the best course of action. This concept note proposes a research study to explore the possibility of the proper use of AI technologies, such as ChatGPT, in higher education practice in Indonesia.  ","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128438158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}