The hemodynamic responses to acute (45 min) partial aortic constriction were studied in conscious intact (N = 7) or sinoaortic denervated (SAD) adult male Wistar rats (280-350 g, N = 7) implanted with carotid and femoral arterial catheters, a pneumatic cuff around the abdominal aorta and a pulsed Doppler flow probe to measure changes in aortic resistance. In addition, the hypertensive response ...

Myogenic constriction describes the innate ability of resistance arteries to constrict in response to elevations in intraluminal pressure and is a fundamental determinant of peripheral resistance and, hence, organ perfusion and systemic blood pressure. However, the receptor/cell-type that senses changes in pressure on the blood vessel wall and the pathway that couples this to constriction of va...

• Restraining the notch effect in dowels significantly increases connection ductility. Post-elastic steel properties of strongly influence displacement capacity. Optimized detailing combined with an adequate allow to reach a high Constriction contact area plate has been observed. According Eurocode 8 moderate dissipative behaviour timber structures requires sufficient ductility critical regions...

Apical constriction typically accompanies inward folding of an epithelial sheet. In recent years there has been progress in understanding mechanisms of apical constriction and their contribution to morphogenetic processes. Sea urchin embryos form a specialized region of ectoderm, the ciliary band, which is a strip of epithelium, three to five cells wide, encircling the oral ectoderm and functio...

Lateral constriction (transverse elastic constraint) of rod controls its apparent (longitudinal) stiffness and can even make it negative. (The total energy system + device remains positive.) The depends upon moduli the material modulus relating lateral normal stress strain components. Apparent negative arrest wave propagation along rod. This opens a way to design hybrid materials consisting sti...