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Neglected uterine rupture… myth or reality? - A case report.
Int J Surg Case Rep
January 2025
Gynaecology-Obstetrics and Endoscopy Department, Maternity Souissi, University Hospital Center IBN SINA, University Mohammed V, Rabat, Morocco.
Introduction: Neglected Uterine rupture in an unscarred uterus is a rare but remains the most serious and fearsome complication in obstetrics, with high maternal and fetal risks, a neglected uterine rupture is rarer but more serious affecting the maternal prognosis with a high rate of hysterectomy.
Case Presentation: A 36-year-old patient, presented on postpartum day 4 a pelvic pain, physical examination finds patient in shock, Ultrasound showed an enlarged uterus with a discontinuity on the right lateral edge and abundant peritoneal fluid reaching Morison's pouch. The patient underwent a necessary total interadnexal hysterectomy due to the presence of a partial uterine necrosis.
Rheological Properties of Dense Particle Suspensions of Starches: Shear Thickening, Shear Jamming, and Shock Absorption Properties.
Langmuir
December 2024
National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan.
Concentrated suspensions of Brownian and non-Brownian particles display distinctive rheological behavior highly dependent on shear rate and shear stress. Cornstarch suspensions, composed of starch particles from corn plants, served as a model for concentrated non-Brownian suspensions, demonstrating discontinuous shear thickening (DST) and dynamic shear jamming (SJ). However, starch particles from other plant sources have not yet been investigated, despite their different sizes and shapes.
View Article and Find Full Text PDFEffect of Liquid Properties on the Non-Newtonian Rheology of Concentrated Silica Suspensions: Discontinuous Shear Thickening, Shear Jamming, and Shock Absorbance.
Langmuir
November 2024
National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan.
Concentrated particle suspensions exhibit rheological behavior, such as discontinuous shear thickening (DST) and dynamic shear jamming (SJ), which affect applications such as soft armors. Although the origin of this behavior in shear-activated particle-particle interactions has been identified, the effect of chemical factors, especially the role of liquids, on this behavior remains unexplored. Hydrogen bonding in suspensions has been proposed to be essential for frictional contacts between particles, and therefore, most studies on DST and SJ have focused on aqueous and protic organic media with a definite hydrogen bonding ability.
View Article and Find Full Text PDFCalibration-Based ALE Model Order Reduction for Hyperbolic Problems with Self-Similar Travelling Discontinuities.
J Sci Comput
October 2024
Department of Mathematics "Guido Castelnuovo", University of Rome La Sapienza, Piazzale Aldo Moro 5, Roma, 00185 Italy.
We propose a novel Model Order Reduction framework that is able to handle solutions of hyperbolic problems characterized by multiple travelling discontinuities. By means of an optimization based approach, we introduce suitable calibration maps that allow us to transform the original solution manifold into a lower dimensional one. The novelty of the methodology is represented by the fact that the optimization process does not require the knowledge of the discontinuities location.
View Article and Find Full Text PDFSalinity as an Abiotic Stressor for Eliciting Bioactive Compounds in Marine Microalgae.
Toxins (Basel)
October 2024
Department of Chemical Engineering, University of Almeria, 04120 Almeria, Spain.
This study investigated the impact of culture medium salinity (5-50 PSU) on the growth and maximum photochemical yield of photosystem II (/) and the composition of carotenoids, fatty acids, and bioactive substances in three marine microalgae (, , and ). The microalgae were photoautotrophically cultured in discontinuous mode in a single stage (S1) and a two-stage culture with salt shock (S2). A growth model was developed to link biomass productivity with salinity for each species.
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