50 Years of Africa Spectrum

50 years of Sterillium®

Coronavirus: Scientometrics of 50 Years of Global Scientific Productions

Background:  Scientometrics studies are one of the most efficient methods of quantitative evaluation of the scientific outputs of valuable information and citation databases for understanding and observing the status of scientific publications in different subject areas. The main aim of this article was to study the 50 years of Coronavirus scientific publications in the world. Materials & Meth...

Celebrating 50 years

5 0 years ago, what would soon evolve to become the profession of respiratory therapy emerged as the Canadian Society of Inhalation Therapy Technicians. One year following the inception of the Society, Canadian Inhalation Therapy published its first issue. From the outset of the profession, research, evaluation and knowledge translation have been fundamental to advancing our understanding of re...

50 years of urbanization in Africa : Examining the role of climate change

This paper documents a significant impact of climate variation on urbanization in sub-Saharan Africa, primarily in arid countries. By lowering farm incomes, reduced moisture availability encourages migration to nearby cities, while wetter conditions slow it. The paper also provides evidence for ruralurban income linkages. In countries with a larger industrial base, reduced moisture shrinks the ...

50 Years of Bailey’s Lemma

Half a century ago, The Proceedings of the London Mathematical Society published W. N. Bailey’s influential paper Identities of the Rogers–Ramanujan type [16]. The main result therein, which was inspired by Rogers’ second proof of the Rogers– Ramanujan identities [49] (and also [48, 28, 15]), is what is now known as Bailey’s lemma. To celebrate the occasion of the lemma’s fiftieth birthday we p...