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Related to Vascular resistance: Peripheral vascular resistance


An effective upper bound on prices achieved because of many willing sellers at that price level.

Resistance Level

In technical analysis, a price that a security does not, or only rarely, rise above. Technical analysts identify a resistance level by looking at past performance. When the security approaches the resistance level, it is seen as an indication to sell the security, which will increase the supply, causing the security's price to fall back below the resistance level. If there are too many buyers, however, the security rises above the resistance level. When this occurs, the price of the security will likely continue to rise until it finds another resistance level. It is also called the overhead resistance level. See also: Price ceiling, Support (Support level).


An increased supply of a security. Compare support.


Resistance, or resistance level, is the top of a stock's current trading range, and the point at which the price is higher than investors are willing to pay. As stockholders sell at resistance level, the stock price goes down because supply exceeds demand.

For example, if, on a repeated basis, as stock A's price reaches $60, stockholders begin to sell, then $60 is considered its resistance level. But a trading range isn't fixed and investor attitudes change, so the resistance level tends to move higher or lower over time.

If stock A rises to $63 without a surge of selling, the current resistance line has been breached. This may be the result of a rising market or a bullish assessment of the stock's value. On the other hand, if selling increases at $57, that may become the new resistance level.

Conversely, the level at which demand exceeds supply and investors typically buy a certain stock is called support. It's the point that's considered the bottom of a stock's current trading range.

Technical analysts use the concepts of resistance and support in anticipating future stock price movements.

References in periodicals archive ?
Similar, non-dose dependent improvements were seen in hemodynamic variables, including mean pulmonary artery pressure, cardiac index, pulmonary vascular resistance, WHO functional class status, and dyspnea.
Patients in the morphine group showed a 750% increase in plasma histamine, a significant decrease in mean arterial pressure and systemic vascular resistance, and the biggest decreases in vascular resistance occurred in the patients with the highest histamine levels.
The same person had a 30% decrease in forearm vascular resistance during the infusion.
Relationship between mitral valve regurgitant flow and peripartum change in systemic vascular resistance.
The primary objective of the study was to evaluate the efficacy of inhaled nebulized AIR001 as determined by change in pulmonary vascular resistance (PVR) from baseline to week 16, measured immediately post-completion of AIR001 nebulization.
Treatment also resulted in "significant and robust" improvements on several secondary end points, including pulmonary vascular resistance, N-terminal prohormone brain natriuretic peptide, World Health Organization functional class, time to clinical worsening, and Borg dyspnea score, he said.
In contrast, other studies have demonstrated more complete resolution of emboli in patients who received thrombolytic therapy, with haemodynamic benefits including lower pulmonary artery pressures and lower pulmonary vascular resistance (18-20).
Shortly after birth, systemic vascular resistance increases and pulmonary vascular resistance decreases.
If pulmonary vascular resistance remains high after these measures, then inhaled nitric oxide can be added.
Distribution of vascular resistance and compliance in a dog lung lobe, J Appl Physiol 53:158-168.
They also had a significantly smaller decrease in systemic vascular resistance.
Neither elevated pulmonary vascular resistance, sensitization, prior support with a left ventricular assist device, nor a history of previous heart transplant influenced overall survival rates, according to a review of 536 patients who received heart transplants between 1993 and 1999 at Columbia University College of Physicians and Surgeons in New York.