Introduction: This is excellent technique for orbital cavity reconstruction. The pericranial flap and flap of superficial temporoparietal fascia are supplied by superficial temporal artery and vein. These flaps are used as skin carrier without hairs of retroauricular area that can be moved to area of eye socket.
Patient And Methods: In twenty patients the temporoparietal peduncular fascial flap (TPFF) for reconstruction of orbital bone defects regardless of etiology. The soft structures and periorbital bones were reconstructed.
Results: The reconstruction gave good esthetic and functional results in all patients that were followed in next six months. In six patients the bottom of eye socket is reconstructed and prepared for eye prosthesis. The occlusion of eye socket is done in ten patients after eye removal. In four patients bone defect were reconstructed with vascular pericranial peduncular flap of parietal bone.
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Nature
January 2025
Department of Physics, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China.
The concept of non-Hermiticity has expanded the understanding of band topology, leading to the emergence of counter-intuitive phenomena. An example is the non-Hermitian skin effect (NHSE), which involves the concentration of eigenstates at the boundary. However, despite the potential insights that can be gained from high-dimensional non-Hermitian quantum systems in areas such as curved space, high-order topological phases and black holes, the realization of this effect in high dimensions remains unexplored.
View Article and Find Full Text PDFISA Trans
December 2024
National Key Laboratory of Aerospace Flight Dynamics, School of Astronautics, Northwestern Polytechnical University, Xi'an 710072, China; Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, China. Electronic address:
This paper investigates an integrated model-control scheme for large-scale spacecraft, focusing on orbit-attitude-vibration dynamics subject to strong time-varying coupling characteristics. The proposed scheme aims to achieve cooperative modeling and control for orbit maintenance, attitude stabilization and vibration suppression simultaneously. An integrated dynamic model is established using the Absolute Nodal Coordinate Formulation and Lagrangian mechanics, where time-varying coupling terms are preserved to enhance model integrity, contrasting with the reduction and decoupling methods commonly adopted in existing literature.
View Article and Find Full Text PDFJ Neurointerv Surg
January 2025
Department of Diagnostic and Interventional Radiology, CHUV - Lausanne University Hospital, Lausanne, Switzerland.
Astrobiology
January 2025
Institute of Environmental System Biology, Dalian Maritime University, Dalian, China.
The Space Radiobiological Exposure Facility (SREF) is a general experimental facility at the China Space Station for scientific research in the fields of space radiation protection, space radiation biology, biotechnology, and the origin of life. The facility provides an environment with controllable temperatures for experiments with organic molecules and model organisms such as small animals, plant seeds, and microorganisms. The cultivation of small animals can be achieved in the facility with the use of microfluidic chips and images and videos of such experiments can be captured by microscopy.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
NCL: CSIR National Chemical Laboratory, Organic Chemistry, Dr. Homi Bhabha Road, 411008, Pune, INDIA.
The cutouts of graphene sheets, particularly those with a nonplanar topology, present vast opportunities for advancement. Even a slight deviation from the planar structure can lead to intriguing (chiro)optical features for helically twisted nanographenes. In this context, we introduce two regioisomeric π-extended nanographenes that exhibit distinct excited-state characteristics.
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