Recent progress towards the electrosynthesis of ammonia from sustainable resources

Ammonia (NH3) is a key commodity chemical of vital importance for fertilisers. It is made on an industrial scale via the Haber Bosch process, which requires significant infrastructure to be in place such that ammonia is generally made in large, centralized facilities. If ammonia could be produced under less demanding conditions, then there would be the potential for smaller devices to be used to generate ammonia in a decentralized manner for local consumption. Electrochemistry has been proposed as an enabling technology for this purpose as it is relatively simple to scale electrolytic devices to meet almost any level of demand. Moreover, it is possible to envisage electrosynthetic cells where water could be oxidised to produce protons and electrons at the anode which could then be used to reduce and protonate nitrogen to give ammonia at the cathode. If this nitrogen were sourced from the air, then the only required infrastructure for this process would be supplies of water, air and electricity, the latter of which could be provided by renewables. Hence an electrosynthetic cell for ammonia production could allow NH3 to be generated sustainably in small, low-cost devices requiring only minimal facilities. In this review, we describe recent progress towards such electrosynthetic ammonia production devices, summarizing also some of the seminal literature in the field. Comparison is made between the various different approaches that have been taken, and the key remaining challenges in the electrosynthesis of ammonia are highlighted

The Role of Self-awareness in Developing Global Competence: A Qualitative Multi-case Study

The current era of globalization and unprecedented global migration is creating the need for schools to educate students for global competence (GC). Multiple researchers (Boix Mansilla & Jackson, 2011; Hunter, 2004; Hunter et al., 2006; Morales & Ogden, 2013) suggest that self-awareness is the core dimension of GC, but about which very little is known. This paper considers the demonstrations of self-awareness in the development of GC. Using Kim\u27s (2008) Intercultural Personhood Theory and the specific components of personal and social communication processes, self-awareness was investigated in East African immigrants. Findings suggest that the construct of self-awareness dimensionalizes differently for those from East African cultures, reflecting the collectivist culture of East Africa, than it does for Western cultures, which are more individualistic in nature (Barrett, 2011). Additionally, findings showed a two-phase process occurs between the initial point of cultural exploration and the development of GC. Various processes occur within each phase that participants used to move toward a GC identity. The paper concludes with a discussion of key implications and areas of significance

Payload Operations Control Center (POCC)

The Spacelab payload operations control center (POCC) timeline analysis program which is used to provide POCC activity and resource information as a function of mission time is described. This program is fully automated and interactive, and is equipped with tutorial displays. The tutorial displays are sufficiently detailed for use by a program analyst having no computer experience. The POCC timeline analysis program is designed to operate on the VAX/VMS version V2.1 computer system