A novel structure that converts wasted backward amplified spontaneous emission (ASE) to seed photons for the amplifier stage is suggested for a high-power erbium-doped fiber (EDF) broadband source. A considerable increase in output power and bandwidth extension was achieved by placement of a segment of passive EDF in front of the amplifier stage, thus recycling backward ASE as the secondary pum...

Synaptic malfunction and degeneration have been shown to contribute to pre-clinical and early-symptomatic stages of many neurodegenerative conditions, like Alzheimer's Disease and Parkinson's Disease (PD). Maintenance of synaptic structure and functionality is a highly energy-dependent process (MacAskill and Kittler, 2010, Villa et al., 2012). Thus, studying brain bioenergetics at synaptic leve...

Activities catalyzing the synthesis of fructose-2,6-bisphosphate (fructose-6-phosphate,2-kinase or Fru-6-P,2K) and its breakdown (fructose-2,6-bisphosphatase or Fru-2,6-P(2)ase) were identified in leaves of corn (Zea mays), a C(4) plant. Fru-6-P,2K and Fru-2,6-P(2)ase were both localized mainly, if not entirely, in the leaf mesophyll cells. A partially purified preparation containing the two ac...

The aim of this study was to investigate the application of adenosine stress echocardiography (ASE) in the prognosis of acute myocardial infarction (AMI) following percutaneous coronary intervention (PCI). A total of 79 patients with AMI who underwent PCI were selected for the study. ASE testing was performed within one week following the PCI. Subsequent to the ASE, the patients with ≥5% increa...

By J. ALEKSANDROWICZ, J. URBANCZYK, ALEKSANDRA Osrnowsi AND J. SIERK0 O UR PREVIOUS REPORTS have shown that in the urine of patients suffering from various letikemias the ribonuclease ( RN-ase ) activity varies considerably and depends on the type and period of treatment.1 It has been stated that in the urine of patients suffering from chronic granulocytic letikemia the RN-ase activity is parti...

Executive Summary Echocardiography is an invaluable diagnostic tool for the evaluation of cardiac form, and function. Evaluation of the cardiac form and function requires highly skilled acquisition given that the technique of performing the examination has become increasingly sophisticated. While there exists several publications relating to the role and training of cardiac sonographers, none o...

Production of a cellobiase-rich preparation by Aspergillus niger 1 was achieved using water hyacinth cellulose as the sole carbon source in the culture medium. Production of cellobiase, carboxymethylcellulase (CMC-ase) and filter paper (FP)-cellulase was favoured by controlling the pH of the culture medium during fermentation at 5.0. Sodium citrate (0.5%), sodium phytate (0.1%), Tween-80 (0.2%,...

Heterosis is a widely studied phenomenon in several plant species. However, its genetic basis still remains to be elucidated. In this study, we used RNA-seq data from two rice genotypes and their reciprocal hybrids, and used a combination of transcriptome profiling and allele-specific expression analysis to identify genes that are differentially expressed in the hybrids and their parents or exp...

in their report Inefficacy of fresh frozen plasma in the treatment of L-asparaginase induced coagulation factor deficiencies during ALL induction therapy, Nowak-Göttl and coll. reported that the prophylactic administration of fresh frozen plasma in acute lymphoblastic leukemia (ALL) patients treated with L-asparaginase (L-Ase) is of no use in correcting the hemostatic imbalance. In fact, they o...

BACKGROUND Real-time perfusion (RTP) contrast echocardiography using low mechanical index power modulation technique allows for simultaneous myocardial perfusion and wall motion analysis. RTP-adenosine stress echocardiography (ASE) could be an alternative to dobutamine-atropine stress echocardiography; more tolerable for the patients and possibly similarly accurate. We aimed to evaluate RTP-ASE...