Kuwait Journal of Science最新文献_第2页

Extraction and characterization of cellulose nanofibers from rice husk: Potential for electrospun PVA/CNF mat composites

IF 1.2 4区综合性期刊

Kuwait Journal of Science Pub Date : 2025-03-12 DOI: 10.1016/j.kjs.2025.100403

Mahyuni Harahap , Vivi Purwandari , Devi Andiani Zebua , Nurkholidah Daulay , Suhut Alexander Situmorang , Yurika Almanda Perangin Angin , Amanda Jiamin Ong , Jonathan Siow , Ronn Goei , Alfred ling Yoong Tok , Saharman Gea

{"title":"Extraction and characterization of cellulose nanofibers from rice husk: Potential for electrospun PVA/CNF mat composites","authors":"Mahyuni Harahap , Vivi Purwandari , Devi Andiani Zebua , Nurkholidah Daulay , Suhut Alexander Situmorang , Yurika Almanda Perangin Angin , Amanda Jiamin Ong , Jonathan Siow , Ronn Goei , Alfred ling Yoong Tok , Saharman Gea","doi":"10.1016/j.kjs.2025.100403","DOIUrl":"10.1016/j.kjs.2025.100403","url":null,"abstract":"<div><div>The current study examined the viability of synthesizing cellulose nanofibers (CNFs) from rice husk using acid hydrolysis 10 % HCl. The PVA polymer solution was enhanced with Triton x-100 as a surfactant and different amounts of CNF were introduced before the electrospinning procedure. The CNF extracted in this study had a diameter of 9.6 nm. It exhibited elongated, fibrous formations like a web, with a crystallinity level of 70 %. The negative charge from the CNF was introduced to augment the conductivity and viscosity of the rotating fluid. The Fourier transform infrared (FTIR) studies validated the interaction between PVA and CNFs throughout their mixing process. The use of CNF enhanced the thermal stability of the PVA nanofibrous composite. The PVA/CNF nanofibrous composite displayed smooth surfaces and potential for diverse medical applications, food packaging, and water purification.</div></div>","PeriodicalId":17848,"journal":{"name":"Kuwait Journal of Science","volume":"52 3","pages":"Article 100403"},"PeriodicalIF":1.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sedimentary and geochemical characterization of the sediments of the Boca Paila Lagoon system, Yucatan Peninsula, Mexico

IF 1.2 4区综合性期刊

Kuwait Journal of Science Pub Date : 2025-03-11 DOI: 10.1016/j.kjs.2025.100394

P. Guadarrama-Guzmán , S.B. Sujitha , M.P. Jonathan , P.D. Roy , Nagarajan Ramasamy , P.F. Rodríguez-Espinosa , Laura Arreola Mendoza , Lorena Elizabeth Campos Villegas

{"title":"Sedimentary and geochemical characterization of the sediments of the Boca Paila Lagoon system, Yucatan Peninsula, Mexico","authors":"P. Guadarrama-Guzmán , S.B. Sujitha , M.P. Jonathan , P.D. Roy , Nagarajan Ramasamy , P.F. Rodríguez-Espinosa , Laura Arreola Mendoza , Lorena Elizabeth Campos Villegas","doi":"10.1016/j.kjs.2025.100394","DOIUrl":"10.1016/j.kjs.2025.100394","url":null,"abstract":"<div><div>In this paper, we investigated the Boca Paila lagoon system that comprises the Campechen (CP), Boca Paila (BP) and San Martin (SM) lagoons along the eastern coast of the Yucatan Peninsula, Mexico to document the distribution and provenance of sediments. Henceforth, forty-one surface sediment samples were collected to analyze the geochemical, petrographical, carbonate content, magnetic susceptibility, and textural parameters. The average concentration of sand was found to be 88.26 % (BP), 81.64 % (CP), and 89.47 % (SM), depicting the fact that sand predominates in shallow water bodies with moderate to high energy environments. Petrography results revealed that the sediments majorly contained micritized bioclasts and calcite crystals formed from the recrystallization of carbonate mud or the direct precipitation of calcite in quiet water environment with minimal mud winnowing within the deposition basin. The major and trace element geochemistry revealed high concentrations of Ca (33.01 %), Mg (1.33 %), and Sr (3493.51 ppm) and the mineralogy was mainly composed of calcite and aragonite. In this study, trace element concentrations followed an order of (all values in ppm): Sr (3493.51) < Rb (13.12) < U (9.49) < Y (4.91) < Cd (2.5) and Mo (2.3). Likewise, elemental ratios (Ti/K, Sr/Ca, Fe/Ca, Ca/S) indicated the biogenic origin of the sediments with low inputs of terrigenous continental weathering. Although the sand grains are predominantly limestone, they are transported from shorter distances and are chemically less mature. This study enhances our comprehension of the lagoon system and offers crucial data for geochemical surveys in regions with similar geological features.</div></div>","PeriodicalId":17848,"journal":{"name":"Kuwait Journal of Science","volume":"52 3","pages":"Article 100394"},"PeriodicalIF":1.2,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Functionalized textile microplastics: A closer look at the issues, strategy, and legislation on the microplastic reduction

IF 1.2 4区综合性期刊

Kuwait Journal of Science Pub Date : 2025-03-11 DOI: 10.1016/j.kjs.2025.100395

Aravin Prince Periyasamy

{"title":"Functionalized textile microplastics: A closer look at the issues, strategy, and legislation on the microplastic reduction","authors":"Aravin Prince Periyasamy","doi":"10.1016/j.kjs.2025.100395","DOIUrl":"10.1016/j.kjs.2025.100395","url":null,"abstract":"<div><div>The problem of microplastic pollution has become more prominent as a worldwide concern. This article provides a thorough analysis of the various routes by which microplastics originating from textiles are released into the environment, encompassing soil, air, and water. This review paper provides a succinct summary of the current use of hazardous and toxic substances (such as per polyfluoroalkyl substances (PFAS), chlorine, bromine, phosphorous, halogen-based chemicals, and various formaldehyde compounds), as well as dyes (which frequently contain heavy metals like lead, arsenic, chromium, nickel, copper, cadmium, mercury, and zinc), and nanomaterials in the textile production process. Additionally, the paper examines the role of the United Nations Environment Assembly (UNEA) and the development of its resolutions on marine plastic pollution to tackle the issue of reducing microplastics in textiles. Though there is a dearth of comprehensive coverage on this topic, this paper provides an overview of the legislative and regulatory measures implemented by different countries in response to the issue of microplastic generation and focuses on textile origin.</div></div>","PeriodicalId":17848,"journal":{"name":"Kuwait Journal of Science","volume":"52 3","pages":"Article 100395"},"PeriodicalIF":1.2,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143627810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Commutant properties of w-core inverses

IF 1.2 4区综合性期刊

Kuwait Journal of Science Pub Date : 2025-03-05 DOI: 10.1016/j.kjs.2025.100390

Chengcheng Wang , Huihui Zhu , Julio Benítez

引用次数: 0

Investigation of the bioactive constituents of Goniothalamus wightii: Antioxidant, anti-inflammation, antimicrobial, anticancer, and molecular docking studies

IF 1.2 4区综合性期刊

Kuwait Journal of Science Pub Date : 2025-03-04 DOI: 10.1016/j.kjs.2025.100392

Vino Palani , Balamuralikrishnan Balasubramanian , Santhosh Chinnaraj , Arunkumar Malaisamy , Viji Maluventhen , Vijaya Anand Arumugam , Wen-Chao Liu , Maruthupandian Arumugam

{"title":"Investigation of the bioactive constituents of Goniothalamus wightii: Antioxidant, anti-inflammation, antimicrobial, anticancer, and molecular docking studies","authors":"Vino Palani , Balamuralikrishnan Balasubramanian , Santhosh Chinnaraj , Arunkumar Malaisamy , Viji Maluventhen , Vijaya Anand Arumugam , Wen-Chao Liu , Maruthupandian Arumugam","doi":"10.1016/j.kjs.2025.100392","DOIUrl":"10.1016/j.kjs.2025.100392","url":null,"abstract":"<div><div>The aim of the current study was to isolate and purify the bioactive metabolite compound using <em>Goniothalamus wightii</em> leaf extracts and evaluate the antioxidant, antibacterial, antibiofilm, and <em>in vitro</em> cytotoxic activities and their <em>in-silico</em> molecular docking studies. A novel compound of 6-[(E)-2-phenylethenyl]-5,6-dihydro-2H-pyran-2-one was purified by column chromatography and characterized by fourier transform infrared spectroscopy, liquid chromatography-mass spectrum, and types and numbers of nuclei in a molecule are examined by nuclear magnetic resonance. Antioxidant activities are evaluated by 2, 2-diphenyl-1-picyrl-hydrazyl, 2ʼ, -2ʼ azino bis-(3-ethylbenzothiazoline-6-sulphonic acid, and ferric reducing power assays. The antibacterial and antibiofilm activities of active bio compounds against human pathogens by agar well diffusion methods. Cytotoxic activities of the active compound were evaluated against breast and cervical cancer cell lines by cytotoxicity assay and acridine orange/ethidium bromide staining methods. Likewise, anti-inflammatory activities have more potent inhibitory effects on human red blood cell membrane stabilization and protein denaturation assays. Further, this compound was evaluated computationally using Schrödinger software. The antimicrobial, antioxidant, and anticancer protein markers were chosen based on their activity and properties. The discovered bioactive compound synergizes and may lead to new drugs shortly. This study concluded that the 6-[(E)-2-phenylethenyl]-5,6-dihydro-2H-pyran-2-one is a moral source isolated from the natural medicinal plant for therapeutic purposes.</div></div>","PeriodicalId":17848,"journal":{"name":"Kuwait Journal of Science","volume":"52 2","pages":"Article 100392"},"PeriodicalIF":1.2,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mapping landslide vulnerability using subsurface rock elastic parameters: A case study of Lebong Regency, Bengkulu

IF 1.2 4区综合性期刊

Kuwait Journal of Science Pub Date : 2025-03-04 DOI: 10.1016/j.kjs.2025.100393

Arif Ismul Hadi , M. Farid , Lindung Zalbuin Mase , Refrizon , Reni Mulyasari , Muhammad Afif Nabhan , Darmawan Ikhlas Fadli , Eli Putriani , Erlan Sumanjaya

{"title":"Mapping landslide vulnerability using subsurface rock elastic parameters: A case study of Lebong Regency, Bengkulu","authors":"Arif Ismul Hadi , M. Farid , Lindung Zalbuin Mase , Refrizon , Reni Mulyasari , Muhammad Afif Nabhan , Darmawan Ikhlas Fadli , Eli Putriani , Erlan Sumanjaya","doi":"10.1016/j.kjs.2025.100393","DOIUrl":"10.1016/j.kjs.2025.100393","url":null,"abstract":"<div><div>The Ketahun segment fault, a part of the Sumatran Fault that crosses through Lebong Regency in Bengkulu Province, Indonesia, has the potential to trigger on-land earthquakes, leading to landslides. Our research, conducted with utmost meticulousness, aims to map landslide potential using the Analytical Hierarchy Process (AHP). We thoroughly analyse various parameters, including rock elasticity, fault distance to measurement points, rainfall, slope and elevation, land cover, ground shear strain (GSS), the time-averaged shear wave velocity for the first 30 m depth (<em>V</em><sub><em>s30</em></sub>), peak ground acceleration (PGA), and modified Mercalli intensity (MMI). The data acquisition process involves the field survey and secondary data collection. The latter is conducted to support the analysis and input of field survey data. The field survey entailed collecting microtremor data using the Horizontal Spectral Ratio (HVSR) method. Subsequently, microtremor data recorded through the HVSR method were processed using win-MASW 5.2 HVSR software. Based on these results, we can identify areas with potential landslides based on rock elastic parameters. The landslide potential map, performed by overlaying these parameters using AHP statistical weighting, highlights the dominant influence of landslide potential stemming from the GSS value, distance of faults to the measurement points, slope gradient, and high rainfall in the study area. In regions exhibiting a high potential for landslides, it is imperative to exercise caution and prepare for disaster mitigation activities to mitigate the risk of such occurrences.</div></div>","PeriodicalId":17848,"journal":{"name":"Kuwait Journal of Science","volume":"52 2","pages":"Article 100393"},"PeriodicalIF":1.2,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of ZnO content on activated carbon/ZnO for enhanced acetaminophen removal under very low light intensity: Kinetics, operational variables, and radical trapping response

IF 1.2 4区综合性期刊

Kuwait Journal of Science Pub Date : 2025-03-03 DOI: 10.1016/j.kjs.2025.100391

Nurul Izzati Izhar , Zul Adlan Mohd Hir , Hartini Ahmad Rafaie , Shaari Daud

{"title":"Influence of ZnO content on activated carbon/ZnO for enhanced acetaminophen removal under very low light intensity: Kinetics, operational variables, and radical trapping response","authors":"Nurul Izzati Izhar , Zul Adlan Mohd Hir , Hartini Ahmad Rafaie , Shaari Daud","doi":"10.1016/j.kjs.2025.100391","DOIUrl":"10.1016/j.kjs.2025.100391","url":null,"abstract":"<div><div>The activated carbon-supported ZnO (AC/ZnO) photocatalyst was prepared using a simple mixing approach with varying ZnO mass ratio. The photoactivity was tested against acetaminophen (ACE) in an aqueous solution, assisted by low UVC light intensity (7 W). Characterization analyses revealed that the AC/ZnO particles mainly exhibited irregular shapes with uniform distributions and high crystallinity, and the primary oxidation state in the structure is Zn<sup>2+</sup> with standard chemical state difference of 23 eV. The band gap of the AC/ZnO composite photocatalysts decreased when AC was integrated with ZnO. Among the composite photocatalysts, higher separation efficiency was observed comparatively with a low ZnO content. Interestingly, the fabrication of AC onto ZnO appeared to contribute to a significant enhancement in photoactivity of pristine ZnO. The photodegradation of ACE by AC/ZnO (0.05:1.5) followed pseudo-first order kinetics and almost complete removal of ACE was achieved under normal conditions. The photo-induced charge carrier's excellent separation efficiency, as demonstrated by the band gap and photoluminescence spectra, was associated with the optimized activities beneath UVC irradiation<strong>.</strong> The best photocatalyst can be recycled up to five times towards ACE degradation without any regeneration step or severe deactivation.</div></div>","PeriodicalId":17848,"journal":{"name":"Kuwait Journal of Science","volume":"52 2","pages":"Article 100391"},"PeriodicalIF":1.2,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Detection of sea urchins (Diadema setosum) colony distribution on UAV imagery data using fuzzy logic approach

IF 1.2 4区综合性期刊

Kuwait Journal of Science Pub Date : 2025-02-24 DOI: 10.1016/j.kjs.2025.100389

Ayub Sugara , Yenni P. Sari , Muhamad S. Sangadji , Aninda W. Rudiastuti , Teguh A. Pianto , Vincentius P. Siregar , Syamsul B. Agus , Dewayany Sutrisno

{"title":"Detection of sea urchins (Diadema setosum) colony distribution on UAV imagery data using fuzzy logic approach","authors":"Ayub Sugara , Yenni P. Sari , Muhamad S. Sangadji , Aninda W. Rudiastuti , Teguh A. Pianto , Vincentius P. Siregar , Syamsul B. Agus , Dewayany Sutrisno","doi":"10.1016/j.kjs.2025.100389","DOIUrl":"10.1016/j.kjs.2025.100389","url":null,"abstract":"<div><div>Unmanned aerial vehicle (UAV) technology has been widely used to identify the spatial distribution of marine and coastal resources. <em>Diadema setosum</em> plays a crucial role in controlling algae populations in coral reef ecosystems, which would otherwise compete with corals for sunlight. <em>Diadema setosum</em> lives in colonies and generally exists in shallow water areas such as coral, seagrass, and sand. Due to its ecological importance in controlling algae and its economic value as a high-nutrient food source, monitoring and managing the distribution and abundance of Diadema setosum is crucial for sustaining coastal ecosystems. This study aimed to assess the ability of UAV imagery to detect the spatial distribution of <em>Diadema setosum</em> colonies using a simple index ratio approach and fuzzy logic. The study was conducted on the southwest coast of Lancang Island, Seribu Islands, Indonesia, from May 3 to 12, 2018. The results showed that the red-green ratio index (RGRI) band combination from the UAV image was better at detecting <em>Diadema setosum</em> colonies than the green-blue ratio index (GBRI) was. The range of index values for <em>Diadema setosum</em> obtained from GBRI and RGRI transformations were 0.717887–1.989796 and 0.510457–1.183333, respectively. The combination of fuzzy logic and the RGRI band index demonstrated strong performance in detecting the distribution of <em>Diadema setosum</em> colonies, achieving an overall classification accuracy exceeding 90%.</div></div>","PeriodicalId":17848,"journal":{"name":"Kuwait Journal of Science","volume":"52 2","pages":"Article 100389"},"PeriodicalIF":1.2,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143563062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Drone-assisted climate-smart agriculture (DACSA): A spatially-based outcome prediction model as an initial approach to track yield changes in shallot planting areas

IF 1.2 4区综合性期刊

Kuwait Journal of Science Pub Date : 2025-02-21 DOI: 10.1016/j.kjs.2025.100388

Gunawan S. Prabowo , Andreas P. Adi , Ari S. Budiyanta , Adi Wirawan , Abdul Aziz , Fuad S. Pranoto , Try Kusuma , Angga Septiawan , Danartomo , Bambang H. Trisasongko

{"title":"Drone-assisted climate-smart agriculture (DACSA): A spatially-based outcome prediction model as an initial approach to track yield changes in shallot planting areas","authors":"Gunawan S. Prabowo , Andreas P. Adi , Ari S. Budiyanta , Adi Wirawan , Abdul Aziz , Fuad S. Pranoto , Try Kusuma , Angga Septiawan , Danartomo , Bambang H. Trisasongko","doi":"10.1016/j.kjs.2025.100388","DOIUrl":"10.1016/j.kjs.2025.100388","url":null,"abstract":"<div><div>The challenge of meeting the world's food demands while protecting the environment is an urgent concern. Leveraging Technology 4.0, precision agriculture management emerges as a promising solution to enhance efficiency and effectiveness. With this goal in mind, a research project was undertaken to develop a spatial model capable of providing real-time notifications on changes in plant yield and location. This map would enable farmers to monitor their fields more precisely and with greater detail. The research commenced by conducting direct soil measurements and capturing crop spectra using drones equipped with multispectral cameras. The collected data was then mosaicked, processed, and combined with crop yield data to create a set of samples. Machine learning algorithms were employed to make predictions, and the yield projections were integrated into spatial maps. These maps can be utilized for navigation and to track areas anticipated to experience yield changes. The result is a spatial map model that serves as a tracking and navigation system, empowering farmers to monitor crop yield changes effectively. This research is an integral part of the development of the Drone-Assisted Climate-Smart Agriculture (DACSA) system, which employs drones for tasks such as obtaining multispectral image data from onion plants, mapping, spraying, and fertilizing. Leveraging the input data spectrum, this spatial navigation map model is expected to contribute to the gradual implementation of precision agriculture, ensuring sustained productivity, and enabling the localization of crop issues in specific areas.</div></div>","PeriodicalId":17848,"journal":{"name":"Kuwait Journal of Science","volume":"52 2","pages":"Article 100388"},"PeriodicalIF":1.2,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A versatile family of distributions: Log-linear regression model and applications to real data

IF 1.2 4区综合性期刊

Kuwait Journal of Science Pub Date : 2025-02-12 DOI: 10.1016/j.kjs.2025.100385

Mustapha Muhammad , Badamasi Abba , Isyaku Muhammad , Hassan S. Bakouch , Jinsen Xiao

引用次数: 0