Intermolecular interactions in N-(ferrocenylmethyl)anthracene-9-carboxamide

The title compound, [Fe(C₅H₅)(C₂₁H₁₆NO)], was synthesized from the coupling reaction of anthracene-9-carboxylic acid and ferrocenylmethylamine. The ferrocenyl (Fc) group and the anthracene ring system both lie approximately orthogonal to the amide moiety. An amide-amide interaction (along the a axis) is the principal interaction [N...O = 2.910 (2) Å]. A C-H...π(arene) interaction [C...centroid = 3.573 (2) Å] and a C-H...O interaction [C...O = 3.275 (3) Å] complete the hydrogen bonding; two short (Fc)C...C(anthracene) contacts are also present

Filling a theoretical void: The lived experiences of “coloured” women as mathematics educators in higher education

Thanks to intense prohibition and regulation of access to higher education during apartheid, a significant number of teachers from historically marginalised groups did not necessarily enter the profession as a first choice or as a desirable profession. Instead, post-schooling choices were based on access and financial support, restricting many marginalised groups to enrol at teacher training colleges. Beyond schools, there were no career pathways for “coloured”, “black”, and “Indian” teachers to teach at a higher education level. In mathematics education, the challenges experienced by “coloured” women are especially pronounced yet unexplored. To date, the dominant literature has leaned towards a negative portrayal, informed by stereotypical imagery and caricature. By exploring the lived experiences of six “coloured” women, who succeeded in establishing themselves as mathematics educators in higher education, the article is driven by a twofold imperative. On the one hand, it seeks to highlight the intersectional barriers of discrimination and marginalisation encountered by these women during apartheid and democratic South Africa. On the other hand, the article is interested in filling the theoretical void on the lives and capabilities of “coloured” women as mathematics educators in higher education

Fabrication and delivery of non-destructive read out memory buffers using laminated layer technique First quarterly progress report

Metallic magnetic alloy foil preparation for development of non-destructive readout buffer memory planes using laminated layer techniqu

Introduction: What is New and Digital Media?

First edition The word media, the plural term for medium, covers a broad spectrum describing communications through television, film, radio, and print. Media require a viewer, a listener, a reader, or a spectator to carry any effect whatsoever. In our rapidly advancing hypermedia landscape of the present, where all traditional media have become singular on the screen-based Internet, the reader, viewer, and listener can participate as as well and truly use media as communication. Technology has inevitably transformed our traditional media into a multitude of interactive platforms, now read and listened to on mobile devices, tablets, e-readers, flat screens, and wearable devices. Whether it\u27s media consumption, the form of the content, or the interaction with the media, the Internet changed the habits of citizens globally. We are now ever connected, ever participating, and consuming film, television, music, news, radio, and millions of native websites

Is Hot IT a False Economy? An Analysis of Server and Data Center Energy Efficiency as Temperatures Rise

As demand for digital services grows, there is need to improve efficiency and reduce the environmental impact of data centers. The largest energy consumer in any data center is the IT, followed by the systems dedicated to cooling. Aiming to improve efficiency, and driven by metrics like PUE, there is a trend towards running data centers hotter to reduce the cooling energy. There is little research investigating the effect this will have on the IT beyond failure rates. To ensure overall efficiency is improving, we must view the data center as a system of systems, taking a holistic view rather than focusing on individual sub-systems. In this paper we use industry standard benchmarks and a wind-tunnel to profile typical enterprise IT. We analyze the effect of environmental conditions on IT efficiency, showing minor increases in temperature or pressure impact the efficiency of servers. Using an idealized, simulated data center case study we show that the interaction between cooling systems, server behaviour and local climate are non-trivial and increasing temperatures has potential to worsen efficiency