OBJECTIVE Operative stress of cardiovascular surgery can alter the blood levels of various physiologically active substances (e.g., cytokines, growth factors), and thus potentially affect cancer cell proliferation. How the combination of changes in blood levels of these substances affects cancer cells has not been adequately addressed. We investigated the stimulatory capacity on cancer cells of...

The increasing demand for high-power fuel cell system pushes the improvements of each subsystem, and hydrogen circulation is one key subsystems. Therefore, it necessary to establish a test platform subsystem with complete testing capabilities reliability. However, research on obviously lagging, especially in performance core components pump ejector. This paper adopts modular design idea, develo...

IN THE PAST DECADE hypothermia has been a subject of intense experimental and clinical study.'-6 After initial experiences showed its severe limitations for intracardiac surgery, many technics of hypothermia were gladly discarded as pump-oxygenators were developed. Subsequently, the combination of hypothermia and extracorporeal circulation has permitted degrees of hypothermia previously incompa...

[1] This paper examines the sensitivity of atmospheric pCO2 to changes in ocean biology that result in drawdown of nutrients at the ocean surface. We show that the global inventory of preformed nutrients is the key determinant of atmospheric pCO2 and the oceanic carbon storage due to the soft-tissue pump (OCSsoft). We develop a new theory showing that under conditions of perfect equilibrium bet...

A COMPUTERIZED PULSATILE ARTERIOarterial system for postsystolic myocardial augmentation has been developed by Chesnut,1 and Watkins and Callaghan.2’5 They determined that the circulatory assist by arterio-arterial pumping is due to lowering of the left ventricular pressure work as a result of conditioning the aorta to a lower pressure at the moment of aortic valve closure. This system has been...

This paper examines the dynamics of large-scale overturning circulations in the tropical atmosphere using an idealized zonally symmetric model on the equatorial b-plane. Under certain simplifications of its coefficients, the elliptic partial differential equation for the transverse circulation can be solved by first performing a vertical transform to obtain a horizontal structure equation, and ...

OBJECTIVE Coronary artery bypass grafting (CABG) using extracorporeal circulation (ECC) is still the gold standard. However, alternative techniques have been developed to avoid ECC and its potential adverse effects. These encompass minimal extracorporeal circulation (MECC) or off-pump coronary artery bypass grafting (OPCAB). However, the prevailing potential benefits when comparing MECC and OPC...

IN THE PAST DECADE hypothermia has been a subject of intense experimental and clinical study.'-6 After initial experiences showed its severe limitations for intracardiac surgery, many technics of hypothermia were gladly discarded as pump-oxygenators were developed. Subsequently, the combination of hypothermia and extracorporeal circulation has permitted degrees of hypothermia previously incompa...

abstract in recent years, dust storm in western part of iran, especially fars province, caused various problems for people. the aim of this research is the identification of circulation patterns producing dust storms over fars province. for this purpose, firstly the code number 6 of current weather at 12 gmt belongs to 8 synoptic stations during the statistical period of 1992-2003 has been extr...