Publications by authors named "I Maria"
Background: Hemophagocytic lymphohistiocytosis (HLH) is a non-neoplastic proliferation and macrophage activation that induces cytokine-mediated bone marrow suppression and features of intense phagocytosis in the bone marrow and liver, leading to multi-organ dysfunction and ultimate failure. The diagnosis of HLH in an intensive care setting is challenging, and it is associated with high morbidity and mortality. HLH-94 is the standard protocol for treatment, consisting of dexamethasone and chemotherapy like etoposide.
View Article and Find Full Text PDFClonus is characterized by involuntary, rhythmic, oscillatory muscle contractions, typically triggered by rapid muscle stretching and is frequently associated with spastic equinovarus foot (SEVF), where it may increase risk of falls and cause discomfort, pain, and sleep disorders. We hypothesize that selective diagnostic nerve block (DNB) of the tibial nerve motor branches can help identify which muscle is primarily responsible for clonus in patients with SEVF and provide useful information for botulinum neurotoxin type A (BoNT-A) treatment. This retrospective study explored which calf muscles contributed to clonus in 91 patients with SEFV after stroke (n = 31), multiple sclerosis (n = 21), and cerebral palsy (n = 39), using selective DNB.
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- Metal chalcohalides, known for their stability and tunability, show promise in thermoelectric applications due to their unique combination of low thermal conductivity and high electrical conductivity.
- The study highlights the thermoelectric properties of -type BiSBr, achieving a notable thermoelectric figure of merit (zT) of around 1.0 at 748 K, which is the highest reported value for pure metal chalcohalides.
- Key findings include the verification of a subunit in BiSBr via advanced X-ray analysis and the discovery of a unique dual vibration behavior (twin-rattler) that significantly reduces lattice thermal conductivity, enhancing thermoelectric performance.
Article Synopsis
- - The text discusses a phenomenon called emphanisis, where local symmetry breaks in rare crystalline phases during heating, contrary to the typical increase in symmetry.
- - It presents research on a mixed halide perovskite, CsPbICl, using synchrotron X-ray measurements to demonstrate instances of emphanisis, linked to structural distortions caused by lone pair effects and thermal movements.
- - The study also explores the thermal evolution of phonon modes using inelastic neutron scattering, revealing interactions that may lead to unusual thermal transport properties in these materials.
The long-range periodic atomic arrangement or the lack thereof in solids typically dictates the magnitude and temperature dependence of their lattice thermal conductivity (). Compared to crystalline materials, glasses exhibit a much-suppressed across all temperatures as the phonon mean free path reaches parity with the interatomic distances therein. While the occurrence of such glass-like thermal transport in crystalline solids captivates the scientific community with its fundamental inquiry, it also holds the potential for profoundly impacting the field of thermoelectric energy conversion.
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