A novel, simple, sensitive and effective method has been developed for preconcentration of Hg(II) on nano-Fe3O4-DOP-ED solid-phase extraction adsorbent. In this paper, Dioctyl phthalate (DOP) was used to encapsulate nano-Fe3O4 and produce a nano-Fe3O4-DOP sorbent based new sorbent was prepared. This was treated with ethylenediamine (ED) in another solvent-free procedure for the formation of a n...

Most of the papers in this collection derive from presentations at a workshop at the University of Essex in 1995. Except for Chapter 17, "Non-transparent Constraint Effects in Gere: From Cycles to Derivations" by Carole Paradis, the constraint-based papers assume some version of Optimality Theory (OT). However, in the spirit of the unbridled chaos reigning in the phonological realm, it is possi...

This paper reports the method and results of a comparative usability study conducted on four Learning Management Systems (LMS), two commercial and two Open Source. The results suggest that there is no single most usable LMS, and that there is no significant difference in the usability of commercial vs. Open Source applications for eLearning. Finally, the paper proposes some simple workarounds t...

S INCE ABOUT 1980 THERE HAS BEEN UNPRECEDENTED global economic integration. Globalization has happened before, but not like this. Economic integration occurs through trade, migration, and capital flows. Figure 1.1 tracks these flows. World trade is measured relative to world income. Capital flows are proxied by the stock of foreign capital in developing countries relative to their GDP. Migratio...

This paper concerns with the construction of codes over GF (2) which reach the max-flow for single source multicast acyclic networks with delay. The coding is always a bitwise XOR of packets with equal lengths, and is based on highly symmetrical and balanced designs. For certain setups and parameters, our approach offers additional plausible security properties: an adversary needs to eavesdrop ...

Background Clinical effectiveness and patient safety depends on standardization of the triage process. Through 4 years, nurses in our department have trained and used a 5-level national recommended triage model. A former study three years ago in our department showed variations in the triage evaluation between nurses with a kappa value at 0.45. Therefore, a new study was made to evaluate the ac...

The field of cellular microbiology is relatively new and incorporates aspects of microbiology and host cellular biology. The first edition of this text, published in 2000, was novel and well received. In general, this new edition is also well written and includes many of the most important recent advances in the field (e.g., microarrays and genome sequencing). The text deals almost exclusively ...

Introduction: Emerging viral diseases (EVDs) pose a significant threat to public health. There have been a few viral epidemics in the last two decades. Coronavirus disease 2019 (COVID-19) is now a global pandemic.Objective: To provide emergency physicians an update on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its dynamic impact on the emergency department (ED) in te...

Background Gaming is a potentially dysfunctional consequence of performance measurement and management systems in the health sector and more generally. In 2009, the New Zealand government initiated a Shorter Stays in Emergency Department (SSED) target in which 95% of patients would be admitted, discharged or transferred from an emergency department (ED) within 6 hours. The implementation ...