Best Practice Guidelines on Publishing Ethics: A Publisher's Perspective, 2nd Edition

Wiley has updated its publishing ethics guidelines, first published in 2006. These new guidelines provide guidance, resources, and practical advice on ethical concerns that arise in academic publishing for editors, authors, and researchers, among other audiences. New guidance is included about whistle blowers, animal research, clinical research, and clinical trial registration, addressing cultural differences, human rights, and confidentiality. The guidelines are uniquely interdisciplinary, and were reviewed by 24 editors and experts chosen from the wide range of communities that Wiley serves. These guidelines are also published in: Headache, International Journal of Clinical Practice, Annals of the New York Academy of Sciences, Social Science Quarterly, and on the website http://exchanges.wiley.com/ethicsguidelines .     

An analytical equation for the oscillation frequency of high-frequency ring oscillators

An analytical equation for the oscillation frequency of a ring oscillator is derived. The derivation is done using a novel method which does not need to find an expression for the delay of each stage. The resulting equation includes the effect of time-varying parasitics. It also includes the effect of the gate resistance, which has a large effect on the oscillation frequency at high frequencies. Measurement results of ring oscillators fabricated in a 0.18-/spl mu/m CMOS process show that the resulting equation has an average error of 8% over a large range of parameter variations.     

On the stability of oil-in-water emulsions to freezing

Oil in water emulsions (40 wt%) were prepared from a homologous series of n-alkanes (C10–C18). The samples were temperature cycled in a differential scanning calorimeter (two cycles of 40 °C to −50 °C to 40 °C at 5 °C min⁻¹) and in bulk (to −20 °C). The emulsions destabilized and phase-separated after freeze–thaw if the droplets were solid at the same time as the continuous phase and were more unstable if a small molecule (SDS or polyoxyethylene sorbitan monolaurate) rather than a protein (whey protein isolate or sodium caseinate) emulsifier was used. The unstable emulsions formed a self-supporting cryo-gel that persisted between the melting of the water and the melting of the hydrocarbon phase. Microscopy provides further evidence of a hydrocarbon continuous network formed during freezing by a mechanism related to partial coalescence which collapses during lipid melting to allow phase separation.