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Front Cover: Potassium Carbonate as a Low-Cost and Highly Active Solid Base Catalyst for Low-Temperature Methanolysis of Polycarbonate (ChemSusChem 2/2025)

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ChemSusChem 2025年第2期18卷

作者： Tzu-Ming Lin Philip Anggo Krisbiantoro Miyu Sato Yu-Chia Chang Eduardo C. Atayde Dr. Weisheng Liao Prof. Yuichi Kamiya Dr. Ryoichi Otomo Prof. Kevin C.-W. Wu Department of Chemical Engineering National Taiwan University Taipei 10617 Taiwan Molecular Science and Technology Program Taiwan International Graduate Program Academia Sinica Taipei 11529 Taiwan International Graduate Program of Molecular Science and Technology National Taiwan University Taipei 10617 Taiwan Graduate School of Environmental Science Hokkaido University Nishi 5 Kita 10 Kita-ku Sapporo 060-0810 Japan Department of Chemistry National Tsing Hua University Hsinchu 30013 Taiwan Faculty of Environmental Earth Science Hokkaido University Nishi 5 Kita 10 Kita-ku Sapporo Japan Department of Chemical Engineering and Materials Science Yuan Ze University Chung-Li Taoyuan Taiwan Department of Chemical Engineering Chung Yuan Christian University Taoyuan City 320 Taiwan

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Long-term performance: strength and metal encapsulation in alkali-activated iron ore tailings

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environmental science and Pollution Research 2024年第34期31卷 47071-47083页

作者： Levandoski, William Mateus Kubiaki Ferrazzo, Suéllen Tonatto Piovesan, Maria Alice Bruschi, Giovani Jordi Consoli, Nilo Cesar Korf, Eduardo Pavan Graduate Program in Environmental Science and Technology Universidade Federal da Fronteira Sul RS Erechim99700-970 Brazil Graduate Program in Civil Engineering Universidade Federal Do Rio Grande Do Sul RS Porto Alegre90035-190 Brazil Undergraduate Program in Environmental and Sanitary Engineering Universidade Federal da Fronteira Sul RS Erechim99700-970 Brazil

Understanding the strength behavior and leaching characteristics of mining tailings stabilized with alkali-activated cements in the short, medium, and long term is crucial for the feasibility of material applications. In this context, this study assessed the stabilization/solidification of iron ore tailings (IOT) using alkali-activated binder (AAB) composed of sugarcane bagasse ash and eggshell lime at curing times of 7, 28, 60, 90, 180, and 365 days. Additionally, leaching tests were conducted, along with the examination of possible changes in the chemical and mineralogical composition resulting from exposure to acidic environments. Tests included unconfined compression strength (UCS), leaching, X-ray diffraction, and Fourier-transform infrared spectroscopy for the IOT-AAB mixtures. The highest increase in UCS was observed between 7 and 60 days, reaching 6.47 MPa, with minimal variation thereafter. The AAB-bonded IOT exhibited no metal toxicity over time. Elements Ba, Mn, Pb, and Zn present in IOT and ash were encapsulated in the cemented matrix, with complete encapsulation of all metals observed from 90 days of curing time. The mineralogy of the stabilized/solidified tailings showed no changes resulting from leaching tests. Characteristic bands associated with the presence of N-A-S–H gel were identified in both pre-leaching and post-leaching samples for all curing times analyzed. Exposure to acidic environments altered bands related to carbonate bonds formed in the IOT-AAB mixture. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

关键词： Lime

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Solid waste management in the paper industry 5

Solid waste management in the paper industry

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5th International Conference on Energy, environmental and Information System, ICENIS 2020

作者： Devichi Wibowo, Isabella Purwanto, P. Suherman, S. Master Program of Environmental Science Post-Graduate Studies Universitas Diponegoro Semarang Indonesia Department of Chemical Engineering Faculty of Engineering Universitas Diponegoro Semarang Indonesia

The industry developed rapidly since the Industrial Revolution in the 18th century. The side effect of industrial development was a large amount of non-hazardous waste and hazardous waste. All of this waste must be managed properly so that environmental sustainability is maintained and does not cause harm or problems to the community. A review will be conducted from various research journals in various countries and the types of waste also vary, namely plastic, pulp and paper industry waste, and other solid waste. A comparison of solid waste management will be carried on to reduce the generation of waste in the environment. © The Authors, published by EDP sciences, 2020.

关键词： Solid wastes

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Bioactivity, Efficacy, and Safety of a Wound Healing Ointment With Medicinal Plant Bioactives: In Vitro and In Vivo Preclinical Evaluations

Scientific World Journal

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Scientific World Journal 2025年第1期2025卷 9466270页

作者： Floriano, Juliana Ferreira Rodrigues, Daniel Ohara, Rie Almeida, Nara Lígia Martins Lara, Vanessa Soares Sartorelli, Patricia Graeff, Carlos Frederico de Oliveira Grecco, Simone dos Santos González, Alejandra Hortencia Miranda D’Alpino, Paulo Henrique Perlatti Imperial College London National Heart and Lung Institute imperial.ac.uk GBR London United Kingdom Botucatu Medical School São Paulo State University (UNESP) São Paulo unesp.br BRA Botucatu Brazil Bioengineering and Biomaterials Group School of Pharmaceutical Sciences São Paulo State University (UNESP) unesp.br BRA Araraquara São Paulo Brazil Biotechnology and Innovation in Health Program Universidade Anhanguera de São Paulo (UNIAN) São Paulo BRA Brazil Brazil Department of Health Management Fundação Nacional de Gestão de Saúde São Paulo Brazil Undergraduate Program Medical School Universidade Nove de Julho Bauru São Paulo Brazil Department of Surgery Stomatology Pathology and Radiology Bauru School of Dentistry University of São Paulo (USP) São Paulo usp.br BRA Bauru Brazil Department of Chemistry Institute of Environmental Chemical and Pharmaceutical Sciences Federal University of São Paulo São Paulo unifesp.br BRA Diadema Brazil Department of Physics School of Sciences POSMAT-Post-Graduate Program in Materials Science and Technology São Paulo State University (UNESP) São Paulo Bauru Brazil Department of Research and Development (RD) and Innovation Center Triplet Biotechnology Solutions Inc Bauru São Paulo Brazil Post-Graduate Program in Dentistry Uniderp Anhanguera University Mato Grosso do Sul Campo Grande Brazil Post-Graduate Program in Integrated Dental Sciences University of Cuiabá (UNIC) Mato Grosso do Sul Cuiabá Brazil Department of Physics School of Sciences São Paulo State University (UNESP) São Paulo unesp.br BRA Bauru Brazil

Chronic wounds have a significant impact on patients’ quality of life, necessitating the management of pain, infection, bleeding, and emotional challenges. Debridement, which involves the removal of nonviable tissue, is crucial for promoting wound healing. In addition to surgical methods, cost-effective alternatives such as local solutions and ointments with biological properties have been explored. The use of natural compounds with anti-inflammatory, antibacterial, and collagen-synthesizing abilities holds promise for wound healing. This in vitro and in vivo preclinical study aimed to assess the safety and effectiveness of a wound healing ointment containing bioactive ingredients derived from medicinal plants (extracts, essential oils, and vegetable oils). The chemical composition of the ointment was characterized using Fourier transform infrared (FTIR) spectroscopy to gain insights into its synergistic action. Preclinical tests were conducted following standardized protocols. FTIR analysis revealed similarities between the product’s spectrum and that of bioactive compounds. The in vitro tests demonstrated that all formulations of the ointment induced no cell death, DNA damage, or acute toxicity in cell cultures (p < 0.05). No lethal dose was observed, indicating the safety of the ointment at all concentrations. The ointment also stimulated a notably more organized, significantly higher collagen production compared to control groups (p < 0.05). In vivo preclinical analyses also demonstrated no adverse responses being effective in the healing process compared to the control group (silver sulfadiazine) in terms of wound contraction and ulcer re-epithelization (p < 0.05). Significantly higher means of wound contraction were observed in the groups treated with the bioactive-containing ointment when compared to both the positive control group (sulfadiazine) and the control untreated groups (p < 0.05). The regenerative ointment exhibited excellent biocompatibility and bi

关键词： biocompatibility chronic wounds natural compounds preclinical tests wound care

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Structural optimization and biological evaluation of indolin-2-one derivatives as novel CDK8 inhibitors for idiopathic pulmonary fibrosis

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Biomedicine and Pharmacotherapy 2025年 184卷 117891-117891页

作者： Hsu, Jui-Yi Hsu, Kai-Cheng Chou, Ching-Hsuan He, Tzu-Ying Lin, Tony Eight Sung, Tzu-Ying Yen, Shih-Chung Hsieh, Jui-Hua Yang, Chia-Ron Huang, Wei-Jan Ph.D. Program for Cancer Molecular Biology and Drug Discovery College of Medical Science and Technology Taipei Medical University and Academia Sinica Taipei Taiwan Graduate Institute of Cancer Biology and Drug Discovery College of Medical Science and Technology Taipei Medical University Taipei Taiwan Ph.D. Program for Cancer Molecular Biology and Drug Discovery College of Medical Science and Technology Taipei Medical University Taipei Taiwan Ph.D. Program in Drug Discovery and Development Industry College of Pharmacy Taipei Medical University Taipei Taiwan TMU Research Center of Cancer Translational Medicine Taipei Medical University Taipei Taiwan Cancer Center Wan Fang Hospital Taipei Medical University Taipei Taiwan School of Pharmacy College of Medicine National Taiwan University Taipei Taiwan Warshel Institute for Computational Biology School of Medicine The Chinese University of Hong Kong (Shenzhen) Shenzhen China Division of Translational Toxicology National Institute of Environmental Health Sciences National Institutes of Health Durham NC United States School of Pharmacy Taipei Medical University Taipei Taiwan

Cyclin-dependent kinase 8 (CDK8) plays a crucial role in the transforming growth factor beta (TGF-β) signaling pathway, which is critical to the pathology of idiopathic pulmonary fibrosis (IPF). CDK8 promotes the epithelial-mesenchymal transition (EMT) and excessive extracellular matrix (ECM) deposition, making it a promising target for IPF treatment. This study focused on optimizing F059–1017, a previously identified CDK8 inhibitor, to enhance its potency. Through integrated structure-based modifications, a series of compounds was synthesized, and their inhibitory effects on CDK8 were tested. Results indicated that substituting with cyclopentanone significantly improved the inhibitory activity, and compound 4j demonstrated the best potency (IC₅₀ = 16 nM). Notably, compared to F059–1017, its potency increased 35-fold, and kinase profiling revealed that the compound was selective for CDK8. Compound 4j inhibited the TGF-β1-induced EMT, cell migration, and morphological changes in A549 cells at a concentration of 0.1 μM and inhibited ECM and EMT protein expressions. In addition, the compound blocked TGF-β1-induced transcriptional changes and inhibited Smad3 and RNA polymerase II phosphorylation. These results highlight the potential of the optimized CDK8 inhibitor as a prospective drug for IPF treatment. © 2025 The Authors

关键词： Cyclin-dependent protein kinase 8 Epithelial-mesenchymal transition Indolin-2-one, Idiopathic pulmonary fibrosis Structural optimization Transforming growth factor beta

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High-resolution density profile of shallow ice core from the southeast Greenland dome drilled in 2021

High-resolution density profile of shallow ice core from the...

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作者： Takasugi, Keita Hori, Akira Kawakami, Kaoru Matsumoto, Mai Sasage, Mahiro Saito, Takeshi Iizuka, Yoshinori Graduate School Social and Environmental Engineering Program Kitami Institute of Technology Japan Department of Earth Energy and Environmental Engineering Kitami Institute of Technology Japan Graduate School of Environmental Science Hokkaido University Japan Institute of Low Temperature Science Hokkaido University Japan

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Study of runway crosswind and tailwind potential for airport sustainability: A study of Soekarno Hatta airport, Cengkareng, Indonesia 2

Study of runway crosswind and tailwind potential for airport...

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2nd International Conference on Biospheric Harmony Advanced Research, ICOBAR 2020

作者： Sardjono, W. Zulkarnain Kusnoputranto, H. Soesilo, T.E.B. Utama, D.N. Sudirwan, J. Information Systems Management Department BINUS Graduate Program-Master of Information Systems Management BINA NUSANTARA University Jakarta11480 Indonesia Post Graduate Program School of Environmental Science University of Indonesia Jakarta Indonesia Faculty of Public Health University of Infonesia Jakarta Indonesia Post Graduate Program School of Environmental Science University of Indonesia Jakarta Indonesia Computer Science Department BINUS Graduate Program-Master of Computer Science Bina Nusantara University Jakarta11480 Indonesia School of Information Systems Department BINUS Undergraduate Program Bina Nusantara University Jakarta11480 Indonesia

Airport runway designs must consider wind climatology to reduce the potential for crosswind and tailwind events that can cause accidents and aircraft delays. The large potential of crosswind and tailwind on a runway at the airport is very detrimental to aircraft passengers and airlines. Therefore, it is necessary to know the potential of crosswind and tailwind on the runway of Soekarno Hatta Airport and find the right parameters for the approximate direction and speed of the wind on the airport runway. Analysis was carried out using the direction and wind speed data from the Soekarno Hatta meteorological station in 2007-2017 to determine the potential for crosswind and tailwind on the runway of Soekarno Hatta airport and run a Weather Research and Forecasting (WRF) weather model to determine the parameterization of the right weather model for wind forecast at Soekarno Hatta airport. The highest maximum crosswind component in the 2007-2017 period occurred in August 30.53 knots, while the highest maximum tailwind of 25 knots occurred in January for a 250-degree runway and 24 knots occurred in August for a 070-degree runway. The potential for crosswind and tailwind is different every month. The scheme produces forecasts of wind direction and speed with a strong level of correlation with observations of wind direction and speed from the Soekarno Hatta meteorological station, the correlation value is 0.61. The most significant social impact of plane delays is time loss for passengers. While the economic impact on one of the crosswind events at Soekarno Hatta airport was an economic loss for one airline of US $ 43,392. © Published under licence by IOP Publishing Ltd.

关键词： Losses

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The caatinga dry tropical forest: A highly efficient carbon sink in South America

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Agricultural and Forest Meteorology 2025年 369卷

作者： Mendes, Keila R. Oliveira, Pablo E.S. Lima, José Romualdo S. Moura, Magna S.B. Souza, Eduardo S. Perez-Marin, Aldrin M. Cunha, John Elton B.L. Mutti, Pedro R. Costa, Gabriel B. de Sá, Thales N. Martins Araujo, Paula A.A. Ferreira, Rosaria R. Marques, Thiago V. Rodrigues, Daniele T. Campos, Suany Melo, Mariana M.L.V. Silva, Israel V.H. Morais, Leonardo F. Nascimento, Fábio S. Silva, Iara B. Xavier, Gustavo S. Silva, Any Caroline N. Oliveira, Ane Caroline C.F. Reis, Jean S. Silva, Daniel F. Medeiros, Erika V. Oliveira, Cássio L. Lopes, Márcio Henrique L. Alves, Maria Fernanda A.T. Alves, Edevaldo M. Santos, Carlos A.C. dos Silva, Bruce K.N. Pereira, Waldeir S. Bezerra, Alan C. Silva, José Raliuson I. Oresca, Denizard Souza, Rodolfo M.S. Nóbrega, Rodolfo L.B. Silva, Thieres G.F. Souza, Luciana S.B. Galvincio, Josicleda D. von Randow, Celso Verhoef, Anne Bezerra, Bergson G. Silva, Cláudio M. Santos e Antonino, Antonio C.D. Menezes, Rômulo S.C. Climate Sciences Post-graduate Program Federal University of Rio Grande do Norte Natal Rio Grande do Norte Brazil Department of Atmospheric and Climate Sciences Federal University of Rio Grande do Norte Natal Rio Grande do Norte Brazil Federal University of the Agreste of Pernambuco Graduate Program in Agricultural Production Pernambuco Garanhuns Brazil Brazilian Agricultural Research Corporation (EMBRAPA) Embrapa Semi-arid Petrolina Pernambuco Brazil Brazilian Agricultural Research Corporation (EMBRAPA) Embrapa Tropical Agroindustry Ceara Fortaleza Brazil Academic Unit of Serra Talhada Federal Rural University of Pernambuco Pernambuco Serra Talhada Brazil National Institute of Semi-arid Desertification and agroecology research group Paraíba Campina Grande Brazil Federal University of Campina Grande Centre for the Sustainable Development of the Semi - Arid Paraíba Campina Grande Brazil Biosciences Post-Graduate Program (PPGBIO) Federal University of Western Pará (UFOPA) Pará Santarém Brazil Postgraduate Program in Natural Resources of the Amazon - PPGRNA- Federal University of Western Pará (UFOPA) Pará Santarém Brazil Postgraduate Program in Forest Science Technology and Innovation - PPGCTIF- Federal University of Western Pará (UFOPA) Pará Santarém Brazil Biotechnology and Biodiversity–Bionorte Network (REDE BIONORTE) Federal University of Western Pará (UFOPA) Pará Santarém Brazil Amazon Tall Tower Observatory (ATTO) Program Large Scale Biosphere-Atmosphere in the Amazon (LBA) Amazonas Manaus Brazil Department of Statistic Federal University of Piauí PI Teresina 64049-550 Brazil SENAI Institute of Innovation - Renewable Energies Natal Rio Grande do Norte Brazil Federal University of Pernambuco PE Caruaru Brazil Federal University of Campina Grande Academic Unit of Atmospheric Sciences Paraíba Campina Grande Brazil Texas Transportation Institute Bryan TX United States University of Bristol School of Geographical Sciences University Rd Bristol

Seasonally Dry Tropical Forests (SDTFs) may act as considerable carbon sinks, regulating the atmospheric and terrestrial carbon storage and fluxes with implications for local, regional and global climates. In the Caatinga, an endemic Brazilian SDTF, the research on the magnitude of the CO₂ sink is still incipient. To address this gap, we conducted a comprehensive analysis of observed CO₂ fluxes using the Eddy Covariance technique across the Caatinga, quantifying and assessing the seasonal and interannual variations in CO₂ exchange under contrasting soil and climatic conditions. In our study we estimated whether the Caatinga functioned as a net source or sink of carbon at five sites during years with varying rates of rainfall. Results showed that the dynamics of CO₂ flux components varied based on the spatio-temporal distribution and magnitude of rainfall and the corresponding variations in vegetation cover. Average annual accumulated Gross Primary Productivity ranged from 1167 g C m⁻² in the Crystalline area to 2018 g C m⁻² in the Agreste ecotone. Average annual Net Ecosystem Exchange was -775 g C m⁻² (-7.7 t C ha⁻¹). The Caatinga exhibited higher carbon use efficiency (CUE) compared to other dry forests in arid and semi-arid regions worldwide and to South American ecosystems, including the Amazon, as documented by FLUXNET2015 eddy covariance datasets. CUE values ranged from 0.31 in the Crystalline area to 0.58 in the Agreste ecotone. These findings provide robust, measurement-based evidence that the Caatinga is a highly efficient carbon sink, substantially contributing to atmospheric CO₂ absorption and mitigating the growth rate of atmospheric CO₂ concentration. © 2025 Elsevier B.V.

关键词： Ecosystem respiration Eddy covariance FLUXNET Gross primary productivity Partitioning of CO2 fluxes Turbulent CO2 flux

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Using puzzle to encourage students to do problem posing

Using puzzle to encourage students to do problem posing

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International Conference on Mathematics and Natural sciences 2017, IConMNS 2017

作者： Candiasa, I.M. Santiyadnya, N. Sunu, G.K.A. Educational Science Study Program Post-Graduate Faculty Universitas Pendidikan Ganesha Bali81116 Indonesia Electronica Technology Education Study Program Faculty of Technology and Vocational School Universitas Pendidikan Ganesha Bali81116 Indonesia Educational Administration Post-Graduate Program Faculty Universitas Pendidikan Ganesha Bali81116 Indonesia

Problem posing is very important in learning mathematics. Many studies have indicated that problem posing can improve the ability to solve mathematics problems. Therefore it is necessary to encourage students systematically to do problem posing. This research tries to pack problem posing in puzzle frame in order to increase student's interest and ability to do problem posing. The puzzle game which is then directed to problem posing is assured can arouse students' enthusiasm, thus encouraging their involvement in problem posing activities. Two groups of junior high school students each consisted of 31 and 32 students selected as samples. The first group follow mathematics class with problem posing learning model that preceded by playing a puzzle but still in a mathematical environment. The second group follow the mathematics class with problem posing learning model only. At the end of the research student's interest and ability to do problem posing are compared by using MANOVA test. Wilks' Lambda test results F = 10.8 on significance (p) = 0.002. Based on these findings, it is concluded that the problem posing learning model in mathematics that is preceded by playing puzzles can increase students' interest and ability to do problem posing. © Published under licence by IOP Publishing Ltd.

关键词： Students

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Modeling the adsorption of ciprofloxacin on magnetic biochar: A comparative study of traditional and advanced approaches

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Journal of Water Process Engineering 2025年 74卷

作者： Fuhr, Ana Carolina Ferreira Piazzi Rodrigues, Daniel Lucas Costa Guido, Júlia Amaral de Azevedo, Cristiane Ferraz de Souza, Nicholas Fernandes Dotto, Guilherme Luiz Lima, Eder Claudio Machado Machado, Fernando Technology Development Center Federal University of Pelotas (UFPel) 1 Gomes Carneiro St RS Pelotas 96010-610 Brazil Materials Science and Engineering Graduate Program Federal University of Pelotas (UFPel) 1 Gomes Carneiro St. RS Pelotas 96010-610 Brazil Center of Engineering Federal University of Pelotas 989 Benjamin Constant St. RS Pelotas 96010-020 Brazil Environmental Science Graduate Program Federal University of Pelotas (UFPel) 989 Benjamin Constant St. RS Pelotas 96010-020 Brazil Chemical Engineering Department Federal University of Santa Maria (UFSM) 1000 Roraima Av. RS Santa Maria 97105-900 Brazil Institute of Chemistry Federal University of Rio Grande do Sul (UFRGS) 9500 Bento Gonçalves Av. Postal Box 15003 RS Porto Alegre 91501-970 Brazil

This study prepared magnetic-activated biochar (MAB) through microwave pyrolysis and chemical activation of olive agro-industrial biomass. The adsorbent was characterized by SEM-EDS, FTIR, XRD, N₂ adsorption/desorption, VSM, IEP, and pH point of zero charge techniques, indicating different structural properties. The adsorption capacity for ciprofloxacin (CIP) removal was evaluated through batch tests, assessing kinetics and equilibrium. The adsorption kinetics followed the general order model. The process was fast, with MAB achieving a half-adsorption time of up to 3 min. In contrast, the Liu model showed a maximum capacity of 215 mg g⁻¹ at 328 K. Statistical models indicated multilayer adsorption, with layer numbers varying from 3.4 to 2.1. The temperature significantly affects steric parameters, increasing the number of CIP molecules adsorbed per site while reducing the number of layers formed. Thermodynamic analysis suggested physical interactions, including hydrogen bonding and π-π interactions, as the primary removal mechanisms. A simulated effluent test demonstrated a 98.98 % removal efficiency, confirming MAB's effectiveness in removing emerging pollutants like CIP and its potential for wastewater treatment applications. MAB can be easily recovered from aqueous media using magnetic fields. Additionally, its adsorption capacity can be regenerated using green solvent elution. These characteristics highlight its potential for wastewater treatment of contaminants of emerging concern. © 2025 Elsevier Ltd

关键词： Adsorption Biomass Contaminants of emerging concern Physical interactions Statistical physics

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