The lobula plate in the optic lobe of the fly brain is a high-order processing center for visual information. Within the lobula plate lie a small number of giant neurons that are responsible for the detection of wide field visual motion. Although the structure and motion sensitivity of these cells have been extensively described in large flies, the system has not been described systematically i...

The first consistent model for the turbulent tachocline is presented, with the turbulent diffusivity computed within the model instead of being specified arbitrarily. For the origin of the 3D turbulence a new mechanism is proposed. Owing to the strongly stable stratification, the mean radial shear is stable, while the horizontal shear is expected to drive predominantly horizontal, quasi-2D moti...

double- unsymmetric-plan medium-rise buildings subjected to bi-directional seismic excitation are complex structures where higher-mode effects in plan and elevation are important in estimating the seismic responses using nonlinear static or pushover analysis. considering two horizontal components of the ground motions makes the problem more intricate. this paper presents a method for nonlinear ...

Preimplantation genetic diagnosis (PGD) is now considered routine in IVF laboratories with micromanipulation capability and access to genetic diagnostic services. The past two decades have witnessed a dramatic increase in the use of PGD, the number of cycles performed, and the indications for which PGD has been used. This increase has been mirrored by a slow, but steady, increase in the range o...

Similar to horizontal earthquake motions, vertical motions are amplified depedent on the local site conditions which can be critical for safety of certain structures. Production natural gas in Groningen, Netherlands, results reservoir compaction causing low magnitude, shallow earthquakes recorded with a borehole seismic network. These recordings form an excellent data set understand how unconso...

Kilohertz quasi-periodic X-ray brightness oscillations (kilohertz QPOs) have now been detected in more than twenty accreting neutron stars in low-mass binary systems. Two kilohertz QPOs are usually detected in each star. Burst oscillations and two kilohertz QPOs have recently been detected in the 401 Hz accretion-powered X-ray pulsar SAX J1808.4−3658. In this star the frequency of the burst osc...

Simultaneous streamwise velocity measurements across the vertical direction obtained in the atmospheric surface layer (Reτ 5 × 10) under near thermally neutral conditions are used to outline and quantify interactions between the scales of turbulence, from the very-large-scale motions to the dissipative scales. Results from conditioned spectra, joint probability density functions and conditional...