We investigate the ability of selective cavity coupling to a topological chain for tailoring connectivity Majorana fermions. show how qubits (TQs), associated with non-local fermion pairing, can be moved from edge bulk through access light-matter interaction specific physical sites. In particular, we present comprehensive DMRG study ground-state features in different chain-cavity geometries and...

Local anesthetics (LAs) are known to bind Na+ channels in the closed, open, and inactivated states and reach their binding sites via extracellular and intracellular access pathways. Despite intensive studies, no atomic-scale theory is available to explain the diverse experimental data on the LA actions. Here we attempt to contribute to this theory by simulating access and binding of LAs in the ...

OBJECTIVE To describe the safety and efficacy of open laparoscopic access for the primary trocar using modified Hasson's technique for laparoscopic surgery in children. METHODS All 100 laparoscopic procedures performed at King Khalid University Hospital, Riyadh, Kingdom of Saudi Arabia between January 1999 and April 2001 using modified Hasson's technique were prospectively evaluated. They wer...

Many independent lines of evidence indicate that the lactose permease of Escherichia coli (LacY) is highly dynamic and that sugar binding causes closing of a large inward-facing cavity with opening of a wide outward-facing hydrophilic cavity. Therefore, lactose/H(+) symport catalyzed by LacY very likely involves a global conformational change that allows alternating access of single sugar- and ...

Since Kalloo and colleagues first reported the feasibility and safety of a peroral transgastric approach in the porcine model in 2004, various groups have reported more complex natural orifice transluminal endoscopic surgery (NOTES) procedures, such as the cholecystectomy, splenectomy and liver biopsy, in the porcine model. Natural orifice access to the abdominal cavity, such as transgastric, t...

schwannoma is a benign encapsulated slow-growing tumor that originates from schwann cells of the peripheral nerve sheath. it usually occurs in the head and neck; however, it is rare in the oral cavity. the tongue is the most common site of intraoral schwannomas, followed by the floor of the mouth, palate, gingiva, vestibular mucosa, lips and mental nerve area. we report a rare case of schwannom...

spindle cell neoplasms are defined as neoplasms that consist of spindle-shaped cells in the histopathology. spindle cell neoplasms can affect the oral cavity. in the oral cavity, the origin of the spindle cell neoplasms may be traced to epithelial, mesenchymal and odontogenic components. this article aims to review the spindle cell neoplasms of the oral cavity with emphasis on histopathology.  ...

abstract introduction: in root canal therapy some accidents may happen that affects the prognosis of the tooth. for example, when preparing access cavity, perforation of furca is a possibility that leads to tooth loss. important factors in prognosis of furcation perforation include: the kind of materials used, area that perforation has happened in, time in which perforation is sealed and skill ...

Case description: A 25-year-old man at clinical examination revealed discrete facial asymmetry and exposure of the lesion in the oral cavity. Imaging exams showed the presence of a well-defined radiopaque mass in the left maxilla, measuring approximately 7 cm and was intimately associated with the maxillary sinus and oral cavity. The mass was excised through an intraoral access under general an...