The present paper provides a joint experimental and theoretical study of positron scattering from pyrazine. Experimental data were measured employing low-energy beamline, covered an energy range 1 to 79 eV. Cross sections for total scattering, elastic positronium formation, direct ionization, the sum discrete electronic-state excitation processes. In addition, electronic cross individual ${1}^{...

Acetylene, C2H2, is a prototypical molecule in several respects. As a readily available gas and one of the smallest and most symmetric polyatomic molecules, it is amenable to both experimental and computational study. It is the smallest member of the important family of unsaturated hydrocarbons and is isoelectronic with N2, having in common with those molecules both a bonding πu orbital and an ...

conclusions according to the results, there was a direct correlation between access to physical space in ed and waiting time. in addition, improving the physical access did not necessarily result in shorter waiting time. therefore, to improve triage process, improvement of waiting time indices, and modifying forms of work process in ed are recommended. results the correlation between the waitin...

background given the rapid pace of changes in community health needs and the mission of healthcare organizations to provide and promote the community’s health, the growing need to increase health system responsiveness to people as a key element of observance and fulfillment of justice is felt more than ever. results confirmatory factor analysis, based on the results of the key informant survey ...

Differential cross sections (DSCs) of the HD(v', j') product for the reaction of H atoms with supersonically cooled D2 molecules in a small number of initial rotational states have been measured at a collision energy of 1.97 eV. These DCSs show an oscillatory pattern that results from interferences caused by different dynamical scattering mechanisms leading to products scattered into the same s...

The use of a server-based loss recovery technique for reliable multicast can significantly improve the system performance in terms of loss recovery latency and bandwidth consumption. Appropriate congestion control mechanisms are necessary to provide fairness and to maintain a high network throughput and link utilisation. In reliable multicast protocol design the loss recovery associated with da...

There is an overall consensus on the importance of laboratory work that exposes the students to broader and more practical issues of industrial control systems, such as their implementation by distributed computer systems (DCSs) and programmable logic controllers (PLCs). However, setting up appropriate laboratory facilities to serve this purpose is expensive. For this reason, an interactive lea...

information and communication technology (ict) has transformed how we live our lives and the way we interact in different contexts. benefits of ict and its upcoming efficiencies (i.e. energy efficiency) are becoming the heart of many public services’ reforms which have influenced the time, distance and space concepts. at present, not only there is a lack of clarity about what high-quality ictba...