In this work we study some properties associated with the bordercollision bifurcations in a two-dimensional piecewise linear map in canonical form, related to the case in which a …xed point of one of the linear maps has complex eigenvalues and undergoes a center bifurcation when its eigenvalues pass through the unit circle. This problem is faced in several applied piecewise smooth models, such ...

We study scarring phenomena in open quantum systems. We show numerical evidence that individual resonance eigenstates of an open quantum system present localization around unstable short periodic orbits in a similar way as their closed counterparts. The structure of eigenfunctions around these classical objects is not destroyed by the opening. This is exposed in a paradigmatic system of quantum...

Previous studies have indicated that NO synthesis in isolated inner medullary collecting duct cells is reduced by cationic amino acids that compete with L-arginine for cellular uptake. In the present study, we investigated the effects of chronic renal medullary infusion of cationic amino acids on renal NO concentration and mean arterial pressure (MAP) in Sprague-Dawley rats. Renal medullary inf...

in this paper‎, ‎we give the notions of crossed polymodule and cat$^1$-polygroup‎ ‎as a generalization of loday's definition‎. ‎then‎, ‎we define the pullback cat$^1$-polygroup and we obtain some results in this respect‎. ‎specially‎, ‎we prove that by a pullback cat$^1$-polygroup we can obtain a cat$^1$-group‎.

We show on the example of the Arnold cat map that classical chaotic systems can be simulated with exponential efficiency on a quantum computer. Although classical computer errors grow exponentially with time, the quantum algorithm with moderate imperfections is able to simulate accurately the unstable chaotic classical nonlinear dynamics for long times. The algorithm can be easily implemented o...

Karyawan Bengkel Lampiri Auto Service sering mengalami kelelahan kerja. Ada 4 aktivitas yang diamati pada penelitian ini yaitu proses las, dempul, amplas, dan cat. Pada dilakukan pendekatan ergonomi dengan mengidentifikasi musculoskeletal disorder. Metode analisa posisi kerja tiap menggunakan kuesioner Nordic Body Map (NBM) untuk mengetahui tingkat resiko cidera karyawan, RULA (Rapid Upper Limb...

background and objectives : bartonella species are being recognized as increasingly important bacterial pathogens in veterinary and human medicine. these organisms can be transmitted by an arthropod vector or alternatively by animal scratches or bites. the objectives of this study were to identify contamination of cat's saliva and nail with b. henselae as a causative role to infect human in a s...