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Quantification and optimization of platinum-molybdenum carbide interfacial sites to enhance low-temperature water-gas shift reaction.
Nat Commun
January 2025
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, Shandong, P.R. China.
Pt/α-MoC catalysts exhibit exceptional activity in low-temperature water-gas shift reactions. However, quantitatively identifying and fine-tuning the active sites has remained a significant challenge. In this study, we reveal that fully exposed monolayer Pt nanoclusters on molybdenum carbides demonstrate mass activity that exceeds that of bulk molybdenum carbide catalysts by one to two orders of magnitude at 100-200 °C for low-temperature water-gas shift reactions.
View Article and Find Full Text PDFStructure and function of a near fully-activated intermediate GPCR-Gαβγ complex.
Nat Commun
January 2025
Department of Molecular Biosciences, University of South Florida, 4202 E Fowler Ave, Tampa, FL, 33620, USA.
Unraveling the signaling roles of intermediate complexes is pivotal for G protein-coupled receptor (GPCR) drug development. Despite hundreds of GPCR-Gαβγ structures, these snapshots primarily capture the fully activated complex. Consequently, the functions of intermediate GPCR-G protein complexes remain elusive.
View Article and Find Full Text PDFImpact of changes in primary care attachment: a scoping review.
Fam Med Community Health
January 2025
Institut du Savoir Montfort, Ottawa, Ontario, Canada
Objectives: Primary care attachment represents an inclusive, equitable and cost-effective way of enhancing health outcomes globally. However, the growing shortage of family physicians threatens to disrupt patient-provider relationships. Understanding the consequences of these disruptions is essential for guiding future research and policy.
View Article and Find Full Text PDFUtilizing simulation-enhanced interprofessional education to identify differences in healthcare students' collaborative practice behaviors: A mixed method study.
Nurse Educ Today
January 2025
Department of Oral Medicine and Diagnostic Sciences, College of Dentistry, University of Illinois Chicago, United States of America; 801 S. Paulina St. Room 204B, Chicago, IL 60612, United States of America. Electronic address:
Background: Teaching collaborative practice behaviors (CPBs) to interprofessional healthcare students could improve healthcare for underserved populations.
Objective: This study explained the impact of Simulation Enhanced Interprofessional Education (SIM-IPE) on healthcare students' self-reported CPBs and their perceptions of utilizing CPBs when caring for underserved populations, as well as the differences among professions within interprofessional teams.
Design: Mixed methods explanatory design.
Directed Evolution's Selective Use of Quantum Tunneling in Designed Enzymes─A Combined Theoretical and Experimental Study.
J Phys Chem B
January 2025
Department of Chemistry and Biochemistry, University of Arizona, 1306 East University Boulevard, Tucson, Arizona 85721, United States.
Natural enzymes are powerful catalysts, reducing the apparent activation energy for reactions and enabling chemistry to proceed as much as 10 times faster than the corresponding solution reaction. It has been suggested for some time that, in some cases, quantum tunneling can contribute to this rate enhancement by offering pathways through a barrier inaccessible to activated events. A central question of interest to both physical chemists and biochemists is the extent to which evolution introduces mechanisms below the barrier, or tunneling mechanisms.
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