Percutaneous Transvenous Mitral Commissurotomy (PTMC) is a standard treatment for critical mitral stenosis. In certain situations such as large left atrium (LA) or low trans-septal puncture, there is technical difficulty in crossing a PTMC balloon across the mitral valve, leading to high failure rate. I hereby describe a case of PTMC successfully performed by using double loop technique to cross the mitral valve.
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http://dx.doi.org/10.1016/j.ihj.2015.09.035 | DOI Listing |
Sensors (Basel)
January 2025
School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China.
This paper proposes a hierarchical framework-based solution to address the challenges of vehicle state estimation and lateral stability control in four-wheel independent drive electric vehicles. First, based on a three-degrees-of-freedom four-wheel vehicle model combined with the Magic Formula Tire model (MF-T), a hierarchical estimation method is designed. The upper layer employs the Kalman Filter (KF) and Extended Kalman Filter (EKF) to estimate the vertical load of the wheels, while the lower layer utilizes EKF in conjunction with the upper-layer results to further estimate the lateral forces, longitudinal velocity, and lateral velocity, achieving accurate vehicle state estimation.
View Article and Find Full Text PDFMaterials (Basel)
January 2025
Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, Faculty of Chemistry, University of Basque Country, UPV/EHU, 20018 San Sebastian, Spain.
We provide new experimental studies of the temperature dependence of the giant magnetoimpedance (GMI) effect and hysteresis loops of Fe-rich and Co-rich amorphous microwires with rather different room temperature magnetic properties and GMI effect features. We observed a remarkable modification of hysteresis loops and magnetic field dependence of the GMI ratio upon heating in both of the studied samples. We observed a noticeable improvement in the GMI ratio and a change in hysteresis loops from rectangular to inclined upon heating in Fe-rich microwire.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
January 2025
State Key Laboratory of Protein and Plant Genetic Engineering, School of Life Science, Peking University, Beijing 100871, People's Republic of China.
Phycobilisomes (PBS) are the major photosynthetic light-harvesting complexes in cyanobacteria and red algae. While the structures of PBS have been determined in atomic resolutions, how PBS are attached to the reaction centers of photosystems remains less clear. Here, we report that a linker protein (LcpA) is required for the attachment of PBS to photosystem II (PSII) in the cyanobacterium sp.
View Article and Find Full Text PDFEur J Heart Fail
January 2025
The George Institute for Global Health, University of New South Wales, Sydney, NSW, Australia.
Aims: The sodium-glucose cotransporter 2 inhibitor canagliflozin reduces the risk of heart failure (HF) hospitalization or cardiovascular death and chronic kidney disease (CKD) progression among patients with type 2 diabetes at high cardiovascular risk or with CKD. Patients with type 2 diabetes commonly have coexisting HF or CKD that require treatment with loop diuretics; however, the prognostic implications of oral loop diuretic intensification are not well characterized.
Methods And Results: In this participant-level pooled analysis of the CREDENCE and CANVAS trials (not including CANVAS-R), 1454/8731 (16.
Carbohydr Polym
March 2025
Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China; State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Beijing 100083, China. Electronic address:
Xylan-derived packaging materials have gained considerable popularity owing to their renewability, non-toxicity, and biodegradability. However, thermoforming is challenging owing to its rigid structure and hydrogen-bonding network of the xylan molecular chain, which limits its large-scale production. Herein, a heat-processable xylan derivative, xylan cinnamate (XC), was synthesized via an esterification reaction in ionic liquids.
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