Publications by authors named "J M P Carmelo"
Spin chains are correlated quantum models of great interest in quantum systems and materials exhibiting quasi-one-dimensional magnetic properties. Here, we review results on quantum problems associated with spin chains that are beyond the usual spinon paradigm. Alternatively, we use a representation valid in the thermodynamic limit, N→∞, in terms of the N spin-1/2 physical spins of the spin-1/2XXZ chain in its whole Hilbert space.
View Article and Find Full Text PDFRationale: Multiple Calcifying Hyperplastic Dental Follicle (MCHDF) is an extremely rare condition and is characterised by multiple impacted permanent teeth, with enlarged dental follicles, containing calcifications. Cone-beam computed tomography (CBCT) is the ideal exam for the identification of this condition.
Patient Concerns: The present study seeks to compare the behaviour of MCHDF in imaging exams of three clinical cases with their MCHDF imaging diagnoses, in which a change about tooth eruption was observed.
Objective: To conduct a morphometric evaluation of the incisive canal, adjacent structures, and their anatomic variations in Brazilian individuals.
Methods: A retrospective study was conducted using a sample of 157 multislice computed tomography images of adult Brazilian individuals of both sexes (20-96 years). The exam was performed with the RadiAnt DICOM Viewer 4.