Contaminants in the Urban Environment: Microplastics by Yun-Ya Yang, Ignacio A. Rodriguez-Jorquera, Maia McGuire, Gurpal S. Toor

“…Plastic contaminants not only include plastic debris characterized by large size but also small pieces of plastic in the millimeter size range; these inconspicuous “microplastics” have become a major concern because of their widespread presence in different environments and diverse organisms. …”
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Biographical sketches by Francois P. Retief, Louise Cilliers

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Sources of illustrations by Francois P. Retief, Louise Cilliers

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Acknowledgements by Francois P. Retief, Louise Cilliers

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Wide FOV metalens for near-infrared capsule endoscopy: advancing compact medical imaging by Moghaddasi Mojtaba, Perez Coca Erik Edilson, Ye Danni, Flores Diego Alejandro, Wu Xudong, Jalal Abdul, Ren Ziming, Abrinaei Fahimeh, Hu Bin

“…The metalens achieved a 165° FOV with a high modulation transfer function (MTF) of 300 lines per millimeter (lp/mm) across the entire FOV, operating in the near-infrared (NIR) narrow-bandpass imaging at 940 nm. …”
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Preface by Pieter G. R. de Villiers

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Preface by P.G.R. de Villiers, D.F. Tolmie

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Els Valors i principis fundacionals de la Unió Europea en temps d’incertesa i policrisi by Joan Lluís Pérez Francesch

“… Es reflexiona sobre la importància dels valors i principis constitutius de la Unió Europea en una època que es considera de crisi d’identitat del projecte europeu, que cal revitalitzar davant de greus amenaces com ara la polarització política, la hiperegulació burocràtica, la crisi de les estructures pròpies de l’Estat de dret en alguns Estats membres, les tendències autoritàries de la democràcia il·liberal, les reaccions euro escèptiques de grups polítics populistes, tot plegat en un escenari internacional incert i en un context de “policrisi” de gran complexitat. …”
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The spirit that moves. A new society and its first publication by Pieter G. R. de Villiers

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Renaissance and religion: the Bible in a time of radical change by P. G. R. de Villiers

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Skrifbeskouing en oorredingsretoriek: perspektiewe op performatiewe prediking by Johan Cilliers

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The eschatology of 1 Thessalonians in the light of its spirituality by P. G. R. de Villiers

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The absence of presence: homiletical reflections on Luther's notion of the masks of God (larvae dei) by J. Cilliers

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The death of Alexander the Great by Francois P. Retief, Louise Cilliers

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Towards a spirituality of peace by P. G. R. de Villiers

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The sixth seal in Revelation 6:12-17 by P. G. R. de Villiers

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Eunuchs in the Bible by Francois P. Retief, Louise Cilliers

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Persecution in the book of Revelation by P. G. R. de Villiers

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Spirituality, theology and the critical mind by P. G. R. de Villiers

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The glory of the Son of Man in Revelation 1-3. Reflections on mysticism in the New Testament by P. G. R. de Villiers

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