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Molecular Structure and Internal Dynamics of 2-Hydroxyacetophenone by Free-Jet Absorption Millimeter-Wave Spectroscopy.
Molecules
December 2024
Department of Chemistry G. Ciamician, University of Bologna, 40126 Bologna, Italy.
The rotational spectrum of 2'-hydroxyacetophenone has been recorded and assigned for the first time using a Stark-modulated free-jet absorption millimeter-wave (FJ-AMMW) spectrometer in the 59.6-74.5 GHz frequency range.
View Article and Find Full Text PDFBreaking Left-Right Symmetry by the Interplay of Planar Cell Polarity, Calcium Signaling and Cilia.
Cells
December 2024
Laboratoire de Biologie du Développement, LBD, CNRS UMR7622, INSERM U1156, Sorbonne Université, F-75005 Paris, France.
The formation of the embryonic left-right axis is a fundamental process in animals, which subsequently conditions both the shape and the correct positioning of internal organs. During vertebrate early development, a transient structure, known as the left-right organizer, breaks the bilateral symmetry in a manner that is critically dependent on the activity of motile and immotile cilia or asymmetric cell migration. Extensive studies have partially elucidated the molecular pathways that initiate left-right asymmetric patterning and morphogenesis.
View Article and Find Full Text PDFThio-modified trianglimines, a novel group of chiral macrocyclic compounds of high structural dynamics.
Sci Rep
January 2025
Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, Poznan, 61 614, Poland.
The embellishing of the macrocycle core with sulfur substituents of varied sterical requirements changes the structural dynamics of chiral, triangular polyimines. Despite their formal high symmetry, these compounds adopt diverse conformations, in which the macrocycle core represents a non-changeable unit. DFT calculations reveal that the mutual arrangement of sulfur-containing substituents is controlled mainly by sterical interactions.
View Article and Find Full Text PDFAssociations Between Skeletal Alignment and Biomechanical Symmetry Before and After Transfemoral Bone-anchored Limb Implantation.
Clin Orthop Relat Res
December 2024
Department of Orthopedics, University of Colorado School of Medicine, Aurora, CO, USA.
Article Synopsis
- Patients with transfemoral amputation often face issues related to socket fit and overuse injuries due to uneven joint stress, which can be improved by using bone-anchored prosthetics that connect directly to the bone.
- This study investigates the relationship between the alignment of the femur and pelvis and how it impacts hip loading asymmetry during walking, both before and one year after receiving a bone-anchored limb implant.
- The analysis included 19 participants from a larger group who underwent the surgery, comparing their skeletal alignment and hip motion data collected at two different time points to determine the effects of the implantation on their mobility and joint loading.
[Evaluation of inner ear malformation based on high-resolution CT and MRI].
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
January 2025
To explore the value of high resolution computed tomography（HRCT） combined with Magnetic Resonance Imaging（MRI） in the diagnosis of inner ear malformation. HRCT and MRI data of 82 patients with inner ear malformations were analyzed retrospectively. HRCT MPR and CPR reconstruction of the inner ear structure, facial nerve canal and oblique sagittal MRI reconstruction of the internal auditory canal were performed.
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