The formation of an intradural extramedullary arachnoid cyst is a rare complication spinal anesthesia. We present case 34-year-old female patient who developed neurological symptoms including bilateral reduction in sensation and strength the lower limbs following C-section under MRI thoracic spine revealed lesion at level T11/T12 upper limit L1 vertebral body, which was pushing cord to side, di...

objective: taurodontism is a dental anomaly characterized by elongation of root body and apical displacement of the pulp chamber floor associated with shortening of roots and their narrowing at the cementoenamel junction (cej). due to having a dilated apical one-third, these teeth may cause complications during extraction, locating canal orifices and instrumentation. this study aimed to assess ...

This case series describes the different potential approaches to late-developing supernumerary premolars (LDSP). LDSP are supernumerary teeth (ST) formed after the eruption of the permanent dentition; usually they develop in the premolar region of the upper and lower jaw. The choice to extract or to monitor the LDSP depends on many factors and has to be carefully planned due to the several risk...

In order to improve the power density of permanent-magnet synchronous machine and reduce cost effective materials, this paper investigated approaches power-density improvement discussed influence flux-weakening level salient ratio parameters on characteristics torque for interior permanent magnet (IPMSM) based (PM) minimisation. Firstly, model PM minimisation can be established principle equal ...

In the paper, two adaptive control schemes based on characteristic model (CM) method are proposed to achieve great dynamic performance for servo motor drive applications. Two second-order CMs of permanent magnet synchronous motors (PMSMs) established difference equation method. An controller consisting four laws is designed CMs. The implements an improved maintaining/tracking law that considers...

This paper seeks ring-theoretic conditions of an integral domain R that reflect in the Clifford property or Boolean property of its class semigroup S(R), that is, the semigroup of the isomorphy classes of the nonzero (integral) ideals of R with the operation induced by multiplication. Precisely, in Section 3, we characterize integrally closed domains with Boolean class semigoup; in this case, S...

The world's first-in-human clinical trial using invasive intelligent brain devices-devices that predict specific neuronal events directly to the implanted person-has been completed with significant success. Predicting brain activity before specific outcomes occur brings a raft of unprecedented applications, especially when implants offer advice on how to respond to the neuronal events forecaste...