We report on all-optical 1310 to 1550 nm wavelength conversion and NRZ-to-RZ data format conversion based on nonlinear polarization rotation in a single semiconductor optical amplifier. (2 pages)
We experimentally demonstrate a FSK-WDM to IM-OTDM conversion system, based on a MZI wavelength converter. The FSK channels data rate is 500 Mbps, while error and power penalty free conversion to 5 ...Gbps IM-OTDM is reported. Operation at 10 Gbps is also shown.
160 Gb/s error-free all-optical add-drop multiplexing, 320 Gb/s error-free demultiplexing and the feasibility of all-optical add drop multiplexing at 320 Gb/s is shown. (2 pages)
This work investigates the estimation accuracy of a coherent optical transmission system's performance when the number of spans in the system is known and the overall system length is approximately ...known. However, there is no knowledge of the lengths of the individual spans as may happen when institutional knowledge of deployed fibre is lost. Estimating the performance of an optical signal over systems using this fibre may be inaccurate as a result. In this paper, the estimation accuracy of this scenario is examined considering a system with heterogeneous fibre span lengths for a DWDM system transmitting 80 channels modulating polarization multiplexed quadrature phase shift keying (PM-QPSK) at 32 Gbaud across the optical C-band using the Gaussian noise (GN) model in comparison to a reference system with homogenous fibre spans.
We demonstrate an all-optical label and payload processor based on nonlinear optical processing with semiconductor optical amplifiers. The processor separates the label and the payload, and generates ...a synchronization pulse. (2 pages)
In this paper the role local surgical and radiological control in the treatment of soft tissue sarcomas in children was analyzed. All children were treated according to CWS-91 and SIOP-IV protocols. ...Eighty three children with RMS A + E, EES/PNET, SS, UDS were included in the analysis. The primary surgery consisted of R0 (5%), R1 (18%) or R2 (16%) resection. In majority of cases (61%) primary surgical intervention was limited to diagnostic biopsy. Conventional or hyperfractionated radiotherapy was performed in 42.8%, 73.8% and 75% of children with disease stage II, III and IV, respectively. Delayed surgery was performed in 20 out of 53 (37.7%) children with stage III of the disease. In 5 patients without primary focus (urinary bladder in 3 and prostate in 2 cases) removed, progression of the disease occurred. In 5 children (stage IV) with progression of the disease no secondary surgery was performed. In 4 of them the primary tumor exceeded 10 cm in diameter. No delayed surgery was performed in 69% of relapsed children with stage III of the disease. Planned radiation therapy was not performed in 15.9% of cases. Primary local surgical control of primary tumor is of great importance for remission duration. In children who underwent delayed surgery the estimated EFS was of 0.7, in comparison with 0.5 EFS of those without secondary surgical treatment.
Fourty two children with myelodysplastic syndrome (MDS) treated in seven centres of The Polish Paediatric Leukaemia/Lymphoma Study Group in period 1975-1998 were included in the study. In 16 children ...RAEB-T, in 3 CMML, in 10 RA and in 13 RAEB were diagnosed. BMT is the best therapy for children with MDS. For children, who have not a donor for BMT, Roacutan therapy seems to be the most effective.
94 children with chronic myelocytic leukaemia--CML treated in period 1975-1998 were included in the study. Twenty seven of 60 children were treated with hydroxyurea or busulfan with 6 MP. In 33 ...children aged 1, 5-17 years IFN (Interferon alfa) was applied at the dose of 3 millions units every second day subcutaneously. Our data showed that IFN alfa could be applied as an alternative treatment in children with CML, who have not a donor for allogenic BMT (bone marrow transplantation).
PDF
