Geometrically modulated contact forces enable hula hoop levitation.

Mechanical systems with moving points of contact-including rolling, sliding, and impacts-are common in engineering applications and everyday experiences. The challenges in analyzing such systems are compounded when an object dynamically explores the complex surface shape of a moving structure, as arises in familiar but poorly understood contexts such as hula hooping. We study this activity as a unique form of mechanical levitation against gravity and identify the conditions required for the stable suspension of an object rolling around a gyrating body.

Analysis of risk factors for postoperative thrombosis in patients with hematological diseases undergoing PICC surgery.

This study analyzes the prognostic factors of thrombosis in patients with hematological diseases after peripherally inserted central catheter (PICC) surgery. We conducted a retrospective analysis of 223 patients with hematological diseases who underwent PICC catheterization between January 2017 and June 2021. These patients were categorized into the thrombotic group and non-thrombotic group based on the occurrence of thrombosis following PICC catheterization.

High-performance ternary logic circuits and neural networks based on carbon nanotube source-gating transistors.

Multi-valued logics (MVLs) offer higher information density, reduced circuit and interconnect complexity, lower power dissipation, and faster speed over conventional binary logic system. Recent advancement in MVL research, particularly with emerging low-dimensional materials, suggests that breakthroughs may be imminent if multistates transistors can be fabricated controllably for large-scale integration. Here, a concept of source-gating transistors (SGTs) is developed and realized using carbon nanotubes (CNTs).

Patients' Willingness to Perform Self-Wound Care: A Cross-sectional Study in the Primary Healthcare Sector in Singapore.

Background: Patient adherence to performing self-wound care (SWC) has a direct influence on the success of telewound care, a healthcare delivery mode that emerged in 2016 in National Healthcare Group Polyclinics in Singapore to relieve the healthcare burden. This mode of delivery was useful during the pandemic, when nonurgent face-to-face visits were switched to the use of telecommunications for consultation. Telewound care requires that patients be willing to perform wound care on their own; however, whether patients are willing to do so remains unknown.

Mesenchymal Stem/Stromal Cells Reverse Adipose Tissue Inflammation in Pigs with Metabolic Syndrome and Renovascular Hypertension.

Metabolic syndrome (MetS) is associated with low-grade inflammation, which can be exacerbated by renal artery stenosis (RAS) and renovascular hypertension, potentially worsening outcomes through pro-inflammatory cytokines. This study investigated whether mesenchymal stem/stromal cells (MSCs) could reduce fat inflammation in pigs with MetS and RAS. Twenty-four pigs were divided into Lean (control), MetS, MetS + RAS, and MetS + RAS + MSCs.