Giant aneurysm of the bilateral vertebrobasilar junction treated by pipeline and coils: A case report and literature review.

Giant aneurysm of the posterior circulation is associated with a higher risk of rupture compared with that of the anterior circulation. Furthermore, surgical clipping and interventional embolization for giant aneurysm of the posterior circulation are more difficult and complex to perform. The present study reported on the case of a 26-year-old female who exhibited a giant spherical aneurysm of the vertebrobasilar junction (VBJ) with a maximum diameter of ~35 mm that caused cervical discomfort.

Compensation of Rotary Encoders Using Fourier Expansion-Back Propagation Neural Network Optimized by Genetic Algorithm.

The measurement accuracy of the precision instruments that contain rotation joints is influenced significantly by the rotary encoders that are installed in the rotation joints. Apart from the imperfect manufacturing and installation of the rotary encoder, the variations of ambient temperature could cause the angle measurement error of the rotary encoder. According to the characteristics of the 2 periodicity of the angle measurement at the stationary temperature and the complexity of the effects of ambient temperature changes, the method based on the Fourier expansion-back propagation (BP) neural network optimized by genetic algorithm (FE-GABPNN) is proposed to improve the angle measurement accuracy of the rotary encoder.

Enhanced cyclic adenosine monophosphate production by Arthrobacter A302 through rational redistribution of metabolic flux.

Cyclic adenosine monophosphate (cAMP) was synthesized through the purine salvage synthesis pathway by Arthrobacter A302. Results showed that hypoxanthine was the best of the precursors, and the cAMP concentration reached 4.06 g/L.

Medium optimization for the production of cyclic adenosine 3',5'-monophosphate by Microbacterium sp. no. 205 using response surface methodology.

Response surface methodology was employed to optimize medium composition for the production of cyclic adenosine 3',5'-monophosphate (cAMP) with Microbacterium sp. no. 205.