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Ambiguity in robotic surgical instruction: lessons from remote and in-person simulation.
Adv Health Sci Educ Theory Pract
January 2025
Department of Surgery, University of California San Francisco, 513 Parnassus Avenue S-321, San Francisco, CA, 94143, USA.
The rise of robotic surgery has been accompanied by numerous educational challenges as surgeons and trainees learn skills unique to the robotic platform. Remote instruction is a solution to provide surgeons ongoing education when in-person teaching is not feasible. However, surgical instruction faces challenges from unclear communication.
View Article and Find Full Text PDFCan We Ever Develop an Ideal RNA Force Field? Lessons Learned from Simulations of the UUCG RNA Tetraloop and Other Systems.
J Chem Theory Comput
January 2025
Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 612 00 Brno, Czech Republic.
Molecular dynamics (MD) simulations are an important and well-established tool for investigating RNA structural dynamics, but their accuracy relies heavily on the quality of the employed force field (). In this work, we present a comprehensive evaluation of widely used pair-additive and polarizable RNA s using the challenging UUCG tetraloop (TL) benchmark system. Extensive standard MD simulations, initiated from the NMR structure of the 14-mer UUCG TL, revealed that most s did not maintain the native state, instead favoring alternative loop conformations.
View Article and Find Full Text PDFHow to protect the proximal bronchial tree during stereotactic radiotherapy of ultracentral lung tumors: Lessons from MR-guided treatment.
Clin Transl Radiat Oncol
March 2025
Department of Radiation Oncology, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
Purpose: To use imaging data from stereotactic MR-guided online adaptive radiotherapy (SMART) of ultracentral lung tumors (ULT) for development of a safe non-adaptive approach towards stereotactic body radiotherapy (SBRT) of ULT.
Patients And Methods: Analysis is based on 19 patients with ULT who received SMART (10 × 5.0-5.
Exceptionally large fluctuations in orientational order: The lessons of large-deviation theory for liquid crystalline systems.
J Chem Phys
January 2025
Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA.
How condensed-matter simulations depend on the number of molecules being simulated (N) is sometimes itself a valuable piece of information. Liquid crystals provide a case in point. Light scattering and 2d-IR experiments on isotropic-phase samples display increasingly large orientational fluctuations ("pseudo-nematic domains") as the samples approach their nematic phase.
View Article and Find Full Text PDFPerformance Tuning of Polarizable Gaussian Multipole Model in Molecular Dynamics Simulations.
J Chem Theory Comput
January 2025
Chemical and Materials Physics Graduate Program, Departments of Molecular Biology and Biochemistry, Chemical and Biomolecular Engineering, Materials Science and Engineering, and Biomedical Engineering, University of California, Irvine, Irvine, California 92697, United States.
Molecular dynamics (MD) simulations are essential for understanding molecular phenomena at the atomic level, with their accuracy largely dependent on both the employed force field and sampling. Polarizable force fields, which incorporate atomic polarization effects, represent a significant advancement in simulation technology. The polarizable Gaussian multipole (pGM) model has been noted for its accurate reproduction of ab initio electrostatic interactions.
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