Transformation of Engineered Copper Oxide Nanoparticles in Surface Waters.

Copper oxide nanoparticles (CuO-NPs) are widely used for their catalytic properties, conductive capacity, and innovations in the fields of superconductors, alloys, and solar energy sensors. To better understand the impact of water chemistry on the stability of CuO nanoparticles, a series of measurements were carried out on nanoparticles suspended in pure water, natural water, and water enriched with natural organic matter fulvic acid (FA). ICP-MS characterization in single-particle mode (SP-ICP-MS) was performed to determine the stability or transformation of nanoparticles in contrasting water conditions.

Insights into the cotranscriptional and translational control mechanisms of the Escherichia coli tbpA thiamin pyrophosphate riboswitch.

Riboswitches regulate gene expression by modulating their structure upon metabolite binding. These RNA orchestrate several layers of regulation to achieve genetic control. Although Escherichia coli riboswitches modulate translation initiation, several cases have been reported where riboswitches also modulate mRNA levels.

Subversive mythical figures and feminist resistance: On the rise of posthuman 'professionals'.

Within the context of neoliberal healthcare, nurses and other health professionals face working conditions that leave them perpetually feeling inadequate, as though they are not enough. They are consistently expected to achieve more with less resources. In such an environment, mere professionalism proves wholly insufficient, enforcing norms of altruism and kindness.

Assembling packs: Outreach nurses, disaffiliated persons, and sorcerers.

Nurses working in outreach capacities frequently encounter disaffiliated or 'hard to reach' populations, such as those experiencing homelessness, those who use substances, and those with mental health concerns. Despite best efforts, nurses regularly fail to find meaningful engagement with these populations. Mobilizing the work of Deleuze and Guattari, this paper will critically examine conventional outreach nursing practices as rooted in the royal science of psychiatry, which many 'survivors' of psychiatric interventions reject.

Toxicity of two heavy rare earth elements to freshwater mussels Dreissena polymorpha.

Rare earth elements (REE) are essential components of many electronic devices that could end-up in solid waste disposal sites and inadvertently released in the environment. The purpose of this study was to examine the toxicity of two heavy REEs, erbium (Er) and lutetium (Lu), in freshwater mussels Dreissena polymorpha. Mussels were exposed to 14 days to increasing concentration (10, 50, 250, and 1250 µg/L) of either Er and Lu at 15 °C and analyzed for gene expression in catalase (CAT), superoxide dismutase (SOD), metallothionein (MT), cytochrome c oxidase (CO1), and cyclin D for cell cycle.