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Delayed diagnosis of spinal osteoblastoma presenting with radicular pain and scoliosis: A case report.
Int J Surg Case Rep
January 2025
University of Tunis El Manar, Faculty of Medicine of Tunis, 1007, Tunisia; Department of Orthopedic Surgery, Hospital Mongi Slim La Marsa, Tunisia.
Introduction And Importance: Osteoblastoma is a rare benign bone tumor, accounting for 1 % of primary bone tumors, often affecting the spine and sacrum. Accurate diagnosis is essential for appropriate treatment and prognosis.
Case Presentation: A 19-year-old male presented with two years of persistent nocturnal radicular and low back pain unresponsive to anti-inflammatory medications.
Photo-induced chirality in a nonchiral crystal.
Science
January 2025
Max Planck Institute for the Structure and Dynamics of Matter, Hamburg, Germany.
Chirality, a pervasive form of symmetry, is intimately connected to the physical properties of solids, as well as the chemical and biological activity of molecular systems. However, inducing chirality in a nonchiral material is challenging because this requires that all mirrors and all roto-inversions be simultaneously broken. Here, we show that chirality of either handedness can be induced in the nonchiral piezoelectric material boron phosphate (BPO) by irradiation with terahertz pulses.
View Article and Find Full Text PDFSign of the Gap Temperature Dependence in CsPb(Br,Cl) Nanocrystals Determined by Cs-Rattler-Mediated Electron-Phonon Coupling.
J Phys Chem Lett
January 2025
Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Spain.
So far, the striking sign reversal in the near-ambient slope of the gap temperature dependence of colloidal CsPbCl perovskite nanocrystals (NCs) compared to its Br counterpart remains unresolved. Pure bromide NCs exhibit a linear gap increase with increasing temperature, to which thermal expansion and electron-phonon interaction equally contribute. In contrast, the temperature slope for the chlorine compound gap is clearly negative.
View Article and Find Full Text PDFLow Intensity Focused Ultrasound Stimulation in Stroke: A Phase I Safety & Feasibility Trial.
Brain Stimul
January 2025
Department of Neurology, Duke University School of Medicine; Department of Biomedical Engineering, Duke University. Electronic address:
Objective: We aim to determine the maximum safe spatial-peak pulse-average intensity (I) of low-intensity focused ultrasound stimulation (LIFUS) in stroke patients and explore its effect on motor learning and corticospinal excitability.
Methods: We adopted the classic 3+3 design to escalate I (estimated in-vivo transcranial value) from 0, 1, 2, 4, 6, to 8 W/cm. Stopping rules were pre-defined: 2-degree scalp burn, clinical seizure, new lesion on diffusion-weighted imaging or major reduction in apparent diffusion coefficient, and participant discontinuation due to any reason.
Intermittent documentation of blood pressure values does not provide comprehensive evaluation of the hemodynamic response during continuous intravenous medication administration.
Sci Rep
January 2025
Department of Neurology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA.
Blood pressure (BP) is a dynamic measure that is frequently discussed in static terms. There exist many limitations in current documentation systems whereby documented BP values may not be reflective of the dynamic variability of BP. This study used an observational, prospective, non-randomized study design to examine the variability in BP response during intravenous vasoactive medication administration in an intensive care unit setting.
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