We performed a retrospective study, including patients operated for brain AVMs between 1999 and 2014, in the Clinic of Neurosurgery, Emergency Clinical Hospital Bagdasar-Arseni, Bucharest.277 patients underwent surgery for brain AVMs.Mean age was 29.82 years.195 patients (70.40%) presented with hemorrhage and 86 cases (31.05%) were admitted with se
The mechanical model of a two-degree-of-freedom forced harmonic vibration system with multiclearance rigid constraints is established, considering the location schemes of symmetrical both-sided clearance and asymmetrical multiple clearance.Existence domains, correlative distributions, and cubs foam finger bifurcation scenarios of periodic vibration
Abstract Background The pendulum test of Wartenberg is a technique commonly used to measure passive knee motion with the aim to assess spasticity.We used this test to evaluate changes of the knee angular displacement, passive stiffness and viscosity in rheumatoid arthritis patients.Stiffness and viscosity represent passive resistances to joint moti
Abstract Boundary conditions for a massless bar drain board Dirac fermion in 2+1 dimensions where the space is a half-plane are discussed in detail.It is argued that linear boundary conditions that leave the Hamiltonian Hermitian generically break C P and T symmetries as well as Lorentz and conformal symmetry.We show that there is essentially one s
In order to simplify the manufacturing process or because of the limitation of the propulsion system, business jet, small civil airplane, and turboprop aircraft are always designed without leading-edge slats, which poses a great challenge to the flight safety during takeoff and landing.Focusing on the low-speed stall cubs foam finger and poststall