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Hydrogen production from ammonia decomposition over a commercial Ru/Al2O3 catalyst in a microchannel reactor: experimental validation and CFD simulation
(Elsevier, 2016)
In this work, an integrated experimental and CFD modelling technique was used to evaluate a microchannel reactor producing hydrogen from ammonia decomposition using a commercial Ru/Al2O3 catalyst. The microchannel reactor ...
Isolation and in vitro permeation of phenylpropylamino alkaloids from Khat (Catha edulis) across oral and intestinal mucosal tissues
(Elsevier, 2016)
Ethnopharmacological relevance: Khat, the leaves of Catha edulis, is used as a “natural amphetamine-like” stimulant in eastern and southern Africa, as well as in the Arabian Peninsula. Leaves are masticated to elicit a ...
In vitro oral drug permeation models: the importance of taking physiological and physico-chemical factors into consideration
(Taylor & Francis, 2016)
Introduction: The assessment of intestinal membrane permeability properties of new chemical entities is a crucial step in the drug discovery and development process and a variety of in vitro models, methods and techniques ...
Acceleration of petaelectronvolt protons in the Galactic Centre
(Nature Publishing Group, 2016)
Galactic cosmic rays reach energies of at least a few petaelectronvolts1 (of the order of 1015 electronvolts). This implies that our Galaxy contains petaelectronvolt accelerators (‘PeVatrons’), but all proposed models of ...
An overview of the first decade of PollyNET: an emerging network of automated Raman-polarization lidars for continuous aerosol profiling
(EGU, 2016)
A global vertically resolved aerosol data set covering
more than 10 years of observations at more than 20 measurement
sites distributed from 63 N to 52 S and 72 W to
124 E has been achieved within the Raman and ...
The chemical composition and fluxes of atmospheric wet deposition at four sites in South Africa
(Elsevier, 2016)
South Africa is the economic hub of southern Africa and is regarded as an important source region of atmospheric pollutants. A nitrogen dioxide (NO2) hotspot is clearly visible from space over the South African Mpumalanga ...
The use of p-aminobenzoic acid as a probe substance for the targeted profiling of glycine conjugation
(Wiley, 2016)
Glycine conjugation facilitates the metabolism of toxic aromatic acids, capable of disrupting mitochondrial integrity. Owing to the high exposure to toxic substrates, characterization of individual glycine conjugation ...
Different amorphous solid-state forms of roxithromycin: a thermodynamic and morphological study
(Elsevier, 2016)
The striking impact that different preparation methods have on the characteristics of amorphous solidstate
forms has attracted considerable attention during the last two decades. The pursuit of more
extensive knowledge ...
Approximation-based integral versus differential isoconversional approaches to the evaluation of kinetic parameters from thermogravimetry: kinetic analysis of the dehydration of a pharmaceutical hydrate
(Springer, 2016)
The relative accuracies of approximation-based
integral versus differential isoconversional approaches for
‘actual’ E determination were investigated on experimental
dehydration data of roxithromycin monohydrate ...
The implementation of stress management strategies in schools
(Kamla-Raj, 2016)
The focus of this paper is to investigate the possibility of creating an action plan for the
implementation of stress management strategies in schools. The specific objectives are to describe the essence and
nature of ...