Fatiguing expiratory muscle work in otherwise resting humans elicits an increase sympathetic motor outflow; whether limb blood flow ([Formula: see text]) and leg vascular resistance (LVR) are affected remains unknown. We found that fatiguing resistive loaded breathing (ERL) did not affect group mean [Formula: text] or LVR. However, within-breath oscillations may reflect a sympathetically mediat...

BACKGROUND Lung volume reduction (LVR) has recently been used to treat severe emphysema. About 25% of the volume of each lung is removed with this method. Little is known about the mechanism of functional improvement so a study was undertaken to investigate the changes in ventilatory mechanics and diaphragmatic function in eight patients after LVR. METHODS Measurements of work of breathing (W...

Prevention is better than cure best applies here. As per many authors, posterior leaflet chordae preservation prevent Left ventricular rupture (LVR) and preserve LV geometry. We are presenting here 5 types of left ventricular rupture (LVR) post Mitral valve replacement (MVR) with different methods to repair with the advantages and disadvantages of each. The mortality rate is still very high des...

The sale of hybrid electric vehicles (HEVs) has increased 10 fold from the year 2001 to 2008 [1]. Thus, high temperature electronics for HEV applications are desired in the engine compartment, power train, and brakes where the ambient temperature normally exceeds 150°C. Power converters (i.e. DC-DC converter, DC-AC inverter) inside the HEVs require Gate-Driver ICs to control the power switches....

The proposed circuit is a dual-chain Dickson type charge pump making use of both active and passive charge transfer switches in order to achieve a compromise between power efficiency, circuit complexity and device reliability. The charge pump is capable of sourcing up to 500 μA at 10 V output voltage for supplying the error amplifiers of two NMOS Low Drop Out (LDO) linear regulators as part of ...

Lung emphysema is a chronic, progressive and irreversible destruction of the lung tissue. Besides non-medical therapies and the well established medical treatment there are surgical and minimally invasive methods for lung volume reduction (LVR) to treat severe emphysema. This report deals with the effectiveness and cost-effectiveness of minimally invasive methods compared to other treatments fo...

This paper presents a novel charge pump scheme, which combines the advantages of Fibonacci and Dickson charge pumps together, to obtain 30 V voltage for display driver IC application. This design only needs four external capacitors, which is more suitable for smaller package application such as smart card display. By using a voltage doubler charge pump with a pulse skip regulator, high amplitud...

Background Coarctation of the aorta (CoA) affects about 4 out of every 10,000 babies born and requires lifelong followup. Even after successful early repair, late cardiovascular (CV) complications arise. In adult patients, left ventricular remodeling (LVR) patterns can predict CV risk. However, few studies on LVR of CoA patients exist due to lack of detailed geometric models. The Cardiac Atlas ...

This paper proposes the use of linear-assisted switching power converters in the context of single-inductor dual-output (SIDO) applications. By combining a DC/DC ripplecontrolled switching power converter with the respective voltage linear regulators at each output, improved performance in terms of load and line regulations is obtained. To achieve that aim, a current-steering switching policy i...