We consider tight Gabor frames (h, a = 1, b = 1) at critical density with h of the form Z−1(Zg/|Zg|). Here Z is the standard Zak transform and g is an even, real, well-behaved window such that Zg has exactly one zero, at ( 2 , 1 2 ), in [0, 1). We show that h and its Fourier transform have maximal decay as allowed by the Balian-Low theorem. Our result illustrates a theorem of Benedetto, Czaja, ...

A G-module clearly defines a ZG-module structure on A, and a ZG-module structure on A clearly defines a G-module structure on A. The distinction will be blurred in this regard, and one often just says that A is a G-module. The free G-modules are up to isomorphism ⊕ZG with basis X. For an arbitrary G-module A, there exists a free G-module F and a surjective map ε : F A, such that G ∼= F/ ker ε. ...

where CF and VF are the filter capacitance and voltage amplitude. See Fig. 1(a). To compute the ratio Vq/VF we use voltage division. We make the crucial observation that to calculate the qubit damping we must analyze the circuit impedances at the qubit frequency. Because the qubit is off resonance from the measurement resonator, the measurement resonator’s impedance Zr is lower than the impedan...

Abstract The zonation of the human adrenal cortex has long been established morphologically and histologically as three distinct layers cells. outer zona glomerulosa (ZG) comprises densely packed cells arranged in clusters that produce aldosterone; fasciculata (ZF) is composed with large cytoplasm, containing lipid droplets radial columns synthetize cortisol; reticularis compact pigmented produ...

ALTERED MORPHOLOGY AND COMPOSITION OF ZYMOGEN GRANULES INACUTE PANCREATITISby AMANDA FLACKAugust 2014Advisor: Dr. Bhanu JenaMajor: PhysiologyDegree: Doctor of PhilosophyIn healthy physiology, pancreatic digestive enzymes secreted following a meal are storedas inactive zymogens within membrane-bound secretory vesicles called Zymogen Granules(ZG), and activ...

The effects of prolonged (7-day) ACTH and dexamethasone administrations on rat adrenocortical-cell turnover have been investigated by combined stereological and metaphase-arrest techniques. ACTH was found to increase the number of parenchymal cells in each adrenal zone; however, ACTH altered the cell distribution in the cortex, lowering their percentage in the zona glomerulosa (ZG) and zona fas...

Evodiamine is a bioactive alkaloid extracted from a Chinese herb named Wu-Chu-Yu, which possesses thermoregulatory, analgesic, and cardiovascular effects. Some studies have demonstrated that evodiamine reduces blood pressure through acting on endothelium and smooth muscle cells to produce a vasodilatory effect, but whether it affects aldosterone secretion is unclear. The purpose of this study w...

The effects of endothelins (ET) on the proliferative activity of the rat adrenal cortex have been investigated in vivo, using an in situ perfusion technique of the intact left gland. The chemicals were dissolved in the perfusion medium, and the perfusion continued for 120 min. ET-1 concentration dependently increased the mitotic index and [3H]thymidine incorporation into DNA in the zona glomeru...