Partial Transmit Sequences (PTS) is an efficient scheme for Peak-to-Average Power Ratio (PAPR) reduction in Orthogonal Frequency Division Multiplexing (OFDM) system. It does not bring any signal distortion. However, its remarkable drawback is the high computational complexity. In order to reduce the computational complexity, currently many PTS methods have been proposed but with the cost of the...

Orthogonal frequency division multiplexing (OFDM) is known as one of the promising broadband techniques in wireless communications. One of the major drawbacks of OFDM is its high peak-to-average power ratio (PAPR) due to the overlay process of all subcarrier signals. This leads to distortion problems at the receiver. Partial Transmit Sequence (PTS) technique is one of the most popular to reduce...

Background: antibiotic therapy and prophylaxis of epidermal wounds in emergency room are often made empirically in case of clinics due to infective complications, although there are no scientific evidences supporting their validity yet. Furthermore, resistance to many antibiotics is a constantly growing problem, especially in Lombardy, Italy. When needed, better prefer beta-lactams or macrolide...

UNLABELLED The aim of this study was to evaluate LV function, by means of echocardiography, after mitral valve repair (MVr) or mitral valve replacement (MVR) in patients (pts) with chronic degenerative mitral regurgitation (MR) and depressed LV systolic function during a 6-years follow-up (FU) period. PATIENTS AND METHODS Forty-five pts with moderately severe or severe MR and preoperative EF<...

The bacterial phosphoenolpyruvate (PEP):carbohydrate phosphotransferase system (PTS) carries out both catalytic and regulatory functions. It catalyzes the transport and phosphorylation of a variety of sugars and sugar derivatives but also carries out numerous regulatory functions related to carbon, nitrogen, and phosphate metabolism, to chemotaxis, to potassium transport, and to the virulence o...

Background: Phosphodiesterase inhibitors (PDI) are used in cardiac surgery to improve and stabilize cardiac function after surgery. The aim of this study is to evaluate changes in hemodynamics and early outcomes when PDI (Inocor/ inamrinone) is given in terminal warm blood cardioplegia to on-pump CABG only patients and compare results with patients who did not receive the drug. Material and Met...

BACKGROUND We recently reported that the presence of disseminated tumor cells (DTCs) in the bone marrow (BM) of primary ovarian cancer patients (POC pts) correlated with reduced progression free survival (PFS) and overall survival (OS). Here we analyzed whether the negative prognostic influence was related to DTC persistence after platinum based chemotherapy and/or due to DTCs associated with s...

UNLABELLED Two branches of the phosphoenolpyruvate-phosphotransferase system (PTS) operate in the soil bacterium Pseudomonas putida KT2440. One branch encompasses a complete set of enzymes for fructose intake (PTS(Fru)), while the other (N-related PTS, or PTS(Ntr)) controls various cellular functions unrelated to the transport of carbohydrates. The potential of these two systems for regulating ...

BACKGROUND Refractory and/or relapsing advanced colorectal cancer (ACRC) requires frequent and prolonged hospitalisations, with a negative impact on the patients' quality of life (QoL). The aim of this single-centre, phase II study was to investigate the efficacy and safety of capecitabine (C) as salvage therapy in patients (pts) with ACRC, heavily pretreated with various chemotherapeutic regim...

BACKGROUND Increased platelet aggregation is implicated in the pathogenesis of ischemic stroke and anti-platelet strategy may contribute to its therapy. Panaxatriol saponin (PTS), the main components extracted from Panax notoginseng, has been shown to be efficacious in the prevention and treatment of ischemic stroke in China. The aim of this study is to determine the anti-platelet activity and ...