1. The kinetics of the hydrolysis of benzoylarginine ethyl ester in packed columns of CM-cellulose-70-ficin and CM-cellulose-90-ficin were studied. 2. The apparent Michaelis constant, K'(m), of these preparations was calculated and shown to be dependent on the flow rate at low rates of perfusion through the columns. 3. The values for k(3) of these preparations were calculated and shown to be nearly independent of flow rate. 4. A modified form of the integrated Michaelis rate equation was used to describe the action of these materials and its limitations are discussed. 5. The hydrolysis of solutions of casein by these columns was studied.
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http://dx.doi.org/10.1042/bj1000718 | DOI Listing |
Angew Chem Int Ed Engl
January 2025
Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Chemistry, Renmin Street, 130024, Changchun, CHINA.
High capacity, selective recovery and separation of precious metals from complex aqueous solutions is essential but remains a challenge in practical applications. Here, we prepared a thiophene-modified aromatic porous organic cage (T-PAC) with high stability for precise recognition and recovery of gold. T-PAC exhibits an outstanding gold uptake capacity of up to 2260 mg/g with fast adsorption kinetics and high adsorption selectivity.
View Article and Find Full Text PDFJ Coll Physicians Surg Pak
January 2025
Department of Stomatology, The Second People's Hospital of Hefei and Hefei Hospital Affiliated to Anhui Medical University, Hefei, Anhui, China.
Objective: To investigate the effects of bulk-fill, resin-based composite types (high or low viscosity) on the internal adaptation of Class V restorations.
Study Design: Experimental study. Place and Duration of the Study: Hefei Stomatological Hospital, Hefei, China, from October 2022 to December 2023.
Perioper Med (Lond)
January 2025
Department Physiotherapy, Nij Smellinghe Hospital, Drachten, The Netherlands.
Background: Multimodal prehabilitation programs are effective at reducing complications after colorectal surgery in patients with a high risk of postoperative complications due to low aerobic capacity and/or malnutrition. However, high implementation fidelity is needed to achieve these effects in real-life practice. This study aimed to investigate the implementation fidelity of an evidence-based prehabilitation program in the real-life context of a Dutch regional hospital.
View Article and Find Full Text PDFSci Rep
January 2025
Business School, Sichuan University, 610059, Chengdu, China.
The comprehensive benefit evaluation of LID based on multi-criteria decision-making methods faces technical issues such as the uncertainties and vagueness in hybrid information sources, which can affect the overall evaluation results and ranking of alternatives. This study introduces a multi-indicator fuzzy comprehensive benefit evaluation approach for the selection of LID measures, aiming to provide a robust and holistic framework for evaluating their benefits at the community level. The proposed methodology integrates quantitative environmental and economic indicators with qualitative social benefit indicators, combining the use of the Storm Water Management Model (SWMM) and ArcGIS for scenario-based analysis, and the use of hesitant fuzzy language sets and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) for decision-making.
View Article and Find Full Text PDFEnviron Sci Technol
January 2025
State Key Laboratory of Heavy Oil Processing, Key Laboratory of Optical Detection Technology for Oil and Gas, College of Science, China University of Petroleum, Beijing 102249, PR China.
The purification efficiency of autoexhaust carbon strongly depends on the heterogeneous interface structure between active metal and oxide, which can modulate the local electronic structure of defect sites to promote the activation of reactant molecules. Herein, the high-dispersion CuO clusters supported on the well-defined CeO nanorods were prepared using the complex deposition slow method. The formation of heteroatomic Cu-O-Ce interfacial structural units as active sites can capture electrons to achieve activation of the NO and O molecules.
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