The aim of this case study was to compare the competition approaches for the Race Walking World Cup and the Olympic Games of a world-class 50-km racewalker. Total training volumes, intensity distribution, performance tests, high altitude stages and the evolution of his haematological values during the season were analysed. The last 12 weeks before the Race Walking World Cup (Approach 1) and the Olympic Games (Approach 2) were used for data analysis. Approach 1 was characterized by lower training volumes (791.7±192.8 min vs. 959.0±120.0 min ES=1.0, large effect) and a higher incidence of high intensity training (ES<0.8, large effect), than Approach 2. Approach 1 resulted in lower blood lactate values at set speeds, better haematological values and a better performance in the Race Walking World Cup than in the Olympic Games (3h47'30'' vs. 3h51'30"). According to the results of this analysis, it seems that a training strategy characterised by a higher incidence of high intensity training and lower volume of work may lead to superior training adaptations and performance in 50-km racewalking. This may help elite racewalkers and their coaches to achieve an optimum performance in their major goal competitions.
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Langmuir
January 2025
College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China.
The development of probes for the efficient detection of volatile organic compounds is crucial for both human health protection and environmental monitoring. In this study, we successfully synthesized a ratiometric fluorescent sensing material [Eu-UiO-67 (1:1)], featuring dual-emission fluorescence peaks via a one-pot method. This material demonstrated exceptional ratiometric fluorescence recognition properties for liquid styrene and isoprene, achieving low limit of detections (LODs) of 6.
View Article and Find Full Text PDFNanomaterials (Basel)
January 2025
Institute of Materials Science & Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
Carbon catalysts have shown promise as an alternative to the currently available energy-intensive approaches for nitrogen fixation (NF) to urea, NH, or related nitrogenous compounds. The primary challenges for NF are the natural inertia of nitrogenous molecules and the competitive hydrogen evolution reaction (HER). Recently, carbon-based materials have made significant progress due to their tunable electronic structure and ease of defect formation.
View Article and Find Full Text PDFNano Lett
January 2025
Department of Physics, Washington University in St. Louis, St. Louis, Missouri 63130, United States.
Recent studies have demonstrated the ability to switch weakly coupled interlayer magnetic orders by using electric polarization in insulating van der Waals heterostructures. However, controlling strongly coupled intralayer magnetic orders remains a significant challenge. In this work, we propose that frustrated multiferroic heterostructures can exhibit enhanced intralayer magnetoelectric coupling.
View Article and Find Full Text PDFClin Teach
February 2025
Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, USA.
Background: Transvaginal ultrasound (TVUS) is the primary imaging modality in obstetrics and gynaecology (OB/GYN); however, it is highly user dependent. TVUS education for medical students is often sporadic and inconsistent. Simulation-based training (SBT) is a well-established innovation for learners to safely develop proficiency.
View Article and Find Full Text PDFSelf-regulated learning (SRL) has been regarded as one of the indispensable factors affecting students' academic success in online learning environments. However, the current understanding of the mechanism/causes of SRL in online ill-structured problem-solving remains insufficient. This study, therefore, examines the configural causal effects of goal attributes, motivational beliefs, creativity, and grit on self-regulated learning.
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