Search Results (46)
Handover in Heterogeneous Networks Using SIP Protocol
Over the last decade we have been witnessing rapid development of telecommunication networks and services, in particular in the filed of new wireless network technologies. On different markets users are able to communicate using different wireless technologies. The first two generation of mobile networks (i.e. NMT and GSM) were developed …
Microstructural investigations of rare-earth transition-metal-based magnetocaloric materials for near-room-temperature applications
Magnetocaloric materials are promising materials for magnetic refrigerators which would substitute present compressor refrigerators. They work on the principle of the magnetocaloric effect (MCE), where the magnetocaloric material increases its temperature when exposed to an external magnetic field. These new type of refrigerators are energetically more efficient and environmentally friendly. …
Role of Cysteine Cathepsins in the Processing, Activation and Inactivation of Perforin
Natural killer (NK) cells and cytotoxic T lymphocytes (CTLs) recognize virus-infected or malignant transformed cells and destroy them through two independent mechanisms. Apoptotic target-cell death can be triggered by the engagement of death-receptors or by the release of cytotoxic granules. Cytotoxic granules gather at the site of contact between the …
Regulation of cysteine proteases cathepsins B, S and K and their role in inflammatory processes
Proteases are responsible for enzymatic cleavage of peptide bonds, which is a basic requirement for completion of diverse biological processes.The proteolytic activity of proteases must be rigorously controlled to avoid inappropriate degradation of proteins. Imbalance in regulation of proteolytic activity can be found in a wide range of diseases. Degradation …
Impact Analysis for Integrated Assessments of Climate-Energy Models
It is evident that the worldwide average temperature is rising and climate is changing (WMO, 2003) and it is believed that there is sufficient evidence that this is due to human activities (IPCC 2001). Human activities are primarily responsible for the release of carbon dioxide and other global warming pollutants …
Functional interpretation of gene expression data
Microarrays are at the center of a revolution in biotechnology, allowing researchers to simultaneously monitor the expression of tens of thousands of genes. The final aim of a typical microarray experiment is to find a molecular explanation for a given macroscopic observation (e.g., which pathways are affected by the loss …