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In this paper, a modified PIFA with a compact size of 34 mm x 8.0 mm x 8.0 mm is proposed. The uniqueness of this design is the inclusion of a T-shaped slot as well as a folded patch. Both the simulation and measurement results show that this novel design has a very wide impedance bandwidth and good return loss characteristics. The prototype model is fabricated and measured. The simulation results...
Fetal adrenocorticotropic responses to UCO have not been characterized despite many studies reporting fetal ACTH and F responses to acute fetal hypoxemia induced by several methods. In addition, effects of repeated brief fetal hypoxemic insults on ACTH and F responses are unknown. We examined fetal ACTH and F responses to repeated, controlled, partial reductions in common umbilical arterial blood...
Paraventricular nuclear (PVN) CRH and AVP are key regulators of anterior pituitary ACTH synthesis. Little is known about glucocorticoid feedback mechanisms including the role of AVP in the sheep fetus at 110-125 days gestation (dGA), the period during which fetal ACTH secretory ability begins to be activated (Acta Endo. 95:546, 1980). We investigated the role of cortisol (F) in the regulation of...
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