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    Toxin-antitoxin genes are differentially expressed in Escherichia coli relA and spoT mutans cultured under nitrogen, fatty acid, or carbon starvation conditions by Monika Maciąg-Dorszyńska, Paweł Olszewski, Monika Karczewska, Lidia Boss

    Published 2025-01-01
    “…However, the exact link between (p)ppGpp and toxin-antitoxin systems’ activation, as well as toxin-antitoxin role in stress adaptation remains disputed.MethodsIn this study, we performed a complex analysis of changes (RNA-Seq) in the toxin-antitoxin operons’ transcription in response to nitrogen, fatty acid, or carbon starvation, in bacteria with different abilities of (p)ppGpp accumulation.Results and discussionAlthough we observed that in some cases (p)ppGpp accumulation appears to be crucial for transcriptional activation of TA genes (e.g., ghoST, ryeA), our data indicates that the general pattern of chromosomally encoded TA gene expression in E. coli differs depending on the nutrient distribution in the environment, regardless of the alarmone accumulation.…”
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    TiO2 Photocatalyst Nanoparticle Separation: Flocculation in Different Matrices and Use of Powdered Activated Carbon as a Precoat in Low-Cost Fabric Filtration by Carlos F. Liriano-Jorge, Ugur Sohmen, Altan Özkan, Holger Gulyas, Ralf Otterpohl

    Published 2014-01-01
    “…As an alternative to photocatalyst separation by sedimentation, precoat vacuum filtration with powdered activated carbon (PAC) over low-cost spunbond polypropylene fabrics was tested in the presence of two PAC types in aqueous NaCl and NaHCO3 solutions as well as in biologically treated greywater and in secondary municipal effluent. …”
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    Enzyme-induced calcium carbonate precipitation treated loess fly ash-based geopolymer for airport slope stabilization: Evaluation of wetting deformation and vibratory disintegration by Jiulong Gao, Jiading Wang, Dengfei Zhang, Fei Wang, Lirong Qi

    Published 2025-07-01
    “…This study explores the feasibility of using enzyme-induced carbonate precipitation (EICP) to produce loess fly ash-based geopolymer (LFG) as a grouting material for fissures in airport slopes. …”
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    Full N,N-Methylation of 4,4′-Methylenedianiline with Dimethyl Carbonate: A Feasible Access to 4,4′-Methylene bis(N,N-Dimethylaniline) by Zegang Qiu, Kunjie Wang, Zhiqin Li, Tao Li, Jinhao Bai, Chanjuan Yin, Xiushen Ye, Haining Liu

    Published 2018-01-01
    “…The full N,N-methylation of 4,4′-methylenedianiline (MDA) with dimethyl carbonate (DMC) was investigated. The yield of the major product 4,4′-methylene bis(N,N-dimethylaniline) (MBDMA) reached as high as 97% over NaY catalyst at 190°C for 6 h. …”
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  16. 2596

    A novel activated carbon material from peanut shells for the removal of methyl orange and methylene blue dyes from wastewater: kinetics, isotherms and mechanism by Oluwagbemi Aladeokin, Ashleigh Fletcher

    Published 2024-06-01
    “…The maximum adsorption capacities of the carbon material for MO and MB, according to the Sips model, were 4584 and 1769 mg/g, respectively. …”
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    Analyzing the role of main energy transition policies upon renewable energy penetration in the EU: An assessment of energy productivity and low carbon economiesMendeley Data by Gonzalo H. Soto, Xuan-Hoa Nghiem, Xavier Martinez-Cobas

    Published 2025-02-01
    “…The two primary variables of interest are energy productivity and low carbon economies between 2004 and 2022 upon renewable energy penetration. …”
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    Enhancement of the Thermomechanical Properties of a Fly Ash- and Carbon Black-Filled Polyvinyl Chloride Composite by Using Epoxidized Soybean Oil as a Secondary Bioplasticizer by Toan Duy Nguyen, Chinh Thuy Nguyen, Van Thanh Thi Tran, Giang Vu Nguyen, Hai Viet Le, Lam Dai Tran, Giang Long Bach, Hoang Thai

    Published 2018-01-01
    “…The PVC/MFA/CB composites were prepared by melt mixing of the plasticized PVC with modified fly ash (MFA), carbon black N330 (CB), and polychloroprene (CR) in a Haake Rheomix mixer using a rotation speed of 50 rpm at 175°C for 6 min and then compressed by Toyoseiki pressure machine under 15 MPa. …”
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