in this paper we emphasize the importance of questioning the global validity of significant concepts underpinning global health policy. this implies questioning the concept of global health as such and accepting that there is no global definition of the global. further, we draw attention to ‘quality’ and ‘empowerment’ as examples of world-forming concepts. these concepts are exemplary for the g...

Glass patterns are visual textures composed of a field of dot pairs (dipoles) whose orientations are determined by a simple geometrical transformation, such as a rotation. Detection of structure in these patterns requires the observer to perform local grouping (to find dipoles) and global grouping to combine their orientations into a percept of overall shape. We estimated the spatial frequency ...

The paper illustrates the application of a combined adaptive particle swarm optimization (A-PSO) algorithm and the finite strip method (FSM) to the lay-up optimization of symmetrically fiber-metal laminated (FML) composite shallow shell panels for maximizing the fundamental frequency. To improve the speed of the optimization process, adaptive inertia weight was used in the particle swarm optimiz...

background: migarine is the most common headache around the world including iran. in recent years, vitamin d deficiency has been shown to a global health problem. a few studies have been determined inverse association between serum levels of vitamin d with a headache. so, in this study, we investigated the effect of vitamin d supplementation on symptoms and c-reactive protein(crp) among patient...

We measured neural responses to local and global aspects of form and motion stimuli using frequency-tagged, steady-state visual evoked potentials (SSVEPs) combined with magnetic resonance imaging (MRI) data. Random dot stimuli were used to portray either dynamic Glass patterns (Glass, 1969) or coherent motion displays. SSVEPs were used to estimate neural activity in a set of fMRI-defined visual...

Visual cortical neurones display a variety of visual properties. Among those that emerge in the primary visual cortex V1 are sharpening of selectivity for spatial frequency and for orientation. The selectivity for these stimulus attributes can be measured around the peak of the tuning function, usually as bandwidth. Other selectivity measures take into account the response across a broader rang...