1. In order to determine if a sustained increase in cardiac output can lead to hypertension, seven conscious dogs were given a continuous infusion of dobutamine, a powerful stimulant of cardiac inotropism, into the left coronary artery for a 7 day period while arterial pressure, cardiac output (electromagnetic flowmeter) and heart rate were measured. 2. The infusion technique (1-5 x 10~ mol min...

The current mirrors are one of the most important circuits in designing the analog and mixed-mode circuit. A low power and low voltage high-performance CMOS current mirror with optimized input and output resistance are presented in this paper. SPICE simulations confirm the high-performance CMOS current mirror with power supply close to the threshold voltage of the transistor. In this paper, for...

GUYTON, ARTHUR C., BERRY ABERNATHY,JIMMY B. LANGSTON, BERWIND N. KAUFMANN AND HILTON M. FAIRCHILD. Relative importance of uenous and arterial resistances in controlling uenous return and cardiac output. Am. J. Physiol. I 96 (5) : I 008-1 o I 4. I g5g.-In dogs with cardiovascular reflexes completely blocked by total spinal anesthesia, the total peripheral resistance was increased fiveor more fol...

In static load tests vibrating wire strain gages are generally used. The advantage of vibrating wire sensors over more conventional electrical resistance or semi-conductor types lies mainly in the sensor output, which is a frequency rather than a voltage or resistance. The frequency output is easier to transmit over long cables and is unaffected by voltage drops such as those which can be broug...

STIMULATION of areas of the cerebral cortex of dog, cat, monkey, and man is followed by a prompt rise in arterial blood pressure. No data are available to indicate whether this is due to increase in peripheral resistance or increase in cardiac output, nor is there any information as to whether comparable changes are produced in the lesser circulation. There are, however, a number of analogous s...

background: aminoglycoside antibiotics are widely used in medical centers, particularly to treat infections. the resistance developed against these agents is a huge concern in health care. a number of researchers have reported that hospital and municipal wastewaters are among the most important dissemination sources of these agent into the environment. some, however, do not agree with this opin...

Cardiac output, blood volume, total peripheral resistance, and renal blood flow were measured in awake salt-sensitive and salt-resistant Dahl rats on normal rat chow (1% NaCl) and on high salt (8% NaCl) diets. Rats were studied after 4, 8, and 46 weeks on a 1% NaCl diet and after 4 and 8 weeks on an 8% NaCl diet Salt-sensitive rats on 8% NaCl for 4 weeks developed systolic hypertension; by 8 we...

Abstract – This paper presents the cross-coupled MOS resistor circuits. The circuits consist of two internal pairs of NMOS and PMOS transistors, and their critical width and length parameters regulate the drain current, transconductance, and output drain resistance. Consequently it determines the output resistance of the circuits. The cross-coupled MOS resistor circuits can be used in multiplic...