A new method based on the use of elastic magnetic elements has been developed for reconstructive surgery on the abdominal aorta and its branches. In 135 experimental operations and subsequent clinical trial of 40 operations, an oriented 5 and 10 mT elastic magnetic element was implanted to the centre of the reconstruction site, resulting in a considerable reduction of the rate of thrombosis in the reconstructed arterial segments.
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Cureus
December 2024
Yoga and Cranial Osteopathy, ApsDEHA, Savona, ITA.
Childbirth is a dynamic process involving mutual adaptation between the maternal pelvis and the presenting fetal part. The ability of the pelvis to maintain optimal mobility during labor plays a crucial role in achieving favorable obstetric outcomes. The pubic arch angle (PAA) increases amplitude during pregnancy, showing pelvic tissue adjustment.
View Article and Find Full Text PDFPhysiol Meas
January 2025
Electronics, Universidad Favaloro, Solis 453, Buenos Aires, Buenos Aires, 1078, ARGENTINA.
Aortic dilatation is a severe pathology that increases the risk of rupture and its hemodynamics could be accurately assessed by using the 4D flow cardiovascular magnetic resonance (CMR) technique but flow assessment under complex flow patterns require validation. The aim of this work was to develop an in vitro system compatible with CMR to assess the accuracy of volume flow measurements in dilated aortas. Approach.
View Article and Find Full Text PDFHeliyon
July 2024
School of Physics, Changchun University of Science and Technology, Changchun, 130022, China.
To analyze the motion laws of a magnetic and elastic coupling system under the influence of various factors, this paper proposes a magnetic coupling pendulum based on spring pieces and magnets-a magnetic-mechanical oscillator. By fixing spring pieces onto two non-magnetic bases and attaching magnets to their upper ends, which repel each other, the potential energy during oscillation is expanded using Fourier series. Subsequently, Lagrange equations are solved to study the effects of the first two terms of potential energy.
View Article and Find Full Text PDFSymmetry-breaking spin-state transitions in two of three isostructural salts of MnIII spin-crossover cations, [MnIII(3-OMe-5-NO2-sal2323)]+, with heavy anions are reported. The ReO4- salt undergoes two-step spin crossover which is coupled with a re-entrant symmetry-breaking structural phase transition between a high temperature phase (S = 2, C2/c), an intermediate ordered phase (S = 1/S = 2, P21/c), and a low temperature phase (S = 1, C2/c). The AsF6- complex undergoes an abrupt transition between a high temperature phase (S = 2, C2/c) and a low temperature ordered phase (S = 1/S = 2, P-1).
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
"Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, 41 A Gr. Ghica Voda Alley, 700487, Iasi, Romania. Electronic address:
Conductive hydrogels are an appealing class of "smart" materials with great application potential, as they combine the stimuli-responsiveness of hydrogels with the conductivity of magnetic fillers. However, fabricating multifunctional conductive hydrogels that simultaneously exhibit conductivity, self-healing, adhesiveness, and anti-freezing properties remains a significant challenge. To address this issue, we introduce here a freeze-thawing approach to develop versatile, multiresponsive composite cryogels able to preserve their features under low-temperature conditions.
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