Strontium isotopes in the atmosphere, geosphere and hydrosphere: Developing a systematic "fingerprinting" framework of rocks and water in sedimentary basins in eastern Australia.

Understanding the connection between aquifers, aquitards, and groundwater-dependant ecosystems remains a key challenge when developing a conceptual hydrogeological model. The aim of this study was to develop a systematic strontium isotope (Sr/Sr) fingerprinting framework of rocks and water within the sedimentary Surat and Clarence-Moreton basins (SCM basins) in eastern Australia - an area of extensive coal seam gas development and high potential for aquifer and groundwater-surface water connectivity. To do this, new groundwater samples (n = 298) were collected, analyzed and integrated with published data (n = 154) from the basins' major sedimentary, volcanic and alluvial aquifers, including the major coal seam gas target, the Walloon Coal Measures.

Routine Disinfection of Mobile Communication Devices in the Postanesthesia Care Unit.

Purpose: Explore the effect of routine disinfection of mobile communication devices (MCDs) in postanesthesia care unit (PACU).

Design: Experimental, repeated measures design.

Methods: At a 247-bed, 20-bed PACU hospital, Mid-Atlantic region, United States, mean baseline bacterial adenosine triphosphate (ATP) counts of six MCDs were established with 3M Clean-Trace Luminometer.

Rapid and simple preparation of remarkably stable binary nanoparticle planet-satellite assemblies.

We demonstrate a straightforward nonbiomolecular approach for self-assembly of binary NP planet-satellite superstructures, which display remarkable colloidal and structural stability under variations in temperature, pH, ionic strength and solvent. The readily scalable process produces highly homogeneous samples and is tolerant to variations in building block size and shape, giving rapid access to a structurally diverse range of robust binary NP assemblies.