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Item type:Publication, The conspicuous colour blue—‘lapis lazuli’—in the history of art(2024-04-01)Colour plays a fundamental role in human perception and its effects on cognition and behaviour have intrigued generations of researchers. The intent of this two-part paper is to provide a wider understanding of the history and evolution from its early beginnings. It also analyses the diverse characteristics of plant-based colours and minerals that produce this intriguing colour called, ‘blue’. Although a large amount of research has been conducted in this domain, the psychological processes through which colour operates, have not been explored comprehensively. As a result, the field has observed certain conflicting results. The first part of this article studies the colour ‘blue’ as a pigment. Besides, it also offers some early development of the colour ‘blue’ in the light spectrum set by the initial developments in the history of science. The second part examines how ‘blue’ has long proven a problem for artists. There are a few materials that are blue in their natural state, that can serve as pigments for painters. During the Renaissance period, artists used a pigment called natural ultramarine (Lapis-Lazuli), lauded for its rich and striking appearance to capture the great beyond, this mineral was introduced by Venetian merchants and brought originally from the mines of Afghanistan, located in the remote province of Badakhshan. It is very common when religion, science, and the arts meet to apply philosophies which are interwoven around historical and social events to present science as human, relevant and a lively endeavour. Finally, this paper brings to a conclusion a short briefing of the works of two of the most expressive artists, Giotto and Titian, and the usage of lapis lazuli - (Ultramarine) in the development of their colour palette.2 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, What Does it Mean for Non-Human Beings to Have Moral Value? Building Bridges Between Capabilitarian Theories(Taylor & Francis, 2026-01-01)In this article, I present a formal and relational definition of moral value, which is not based on any specific intrinsic or extrinsic property or relational criteria in particular. With this definition, human agents can recognise moral value in a particular non-human being for different reasons and acknowledge that different beings have moral value even if they do not share the same properties. I thus seek to demonstrate that my proposal is not only compatible with the reasons proposed by Capability scholars for recognising moral value in non-human beings but also allows us to build bridges between them. To that end, I will invert theorists' previous reasoning on an entity's moral value. Typically, scholars first propose that something has a moral value (based on a specific property) and then ask what kind of responsibilities or attitudes we should have towards this entity in response to this value. My approach instead establishes that the moral value of an entity is derived from the reasons an agent has for certain kinds of attitudes toward that being. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Wari: Influence from Highland to Coast(Oxford University Press, 2026-05-21)The Wari were a multifaceted society that followed a state-directed political strategy and at the same time dealt with the contingencies of a dynamic and heterogeneous social, political, and climatic context. This chapter summarizes Wari evidence from different regions of the south-central Andes, emphasizing the role of Wari “influence” and discussing both the direct and indirect effects within these different regions. Moreover, this work attempts to differentiate evidence directly associated with the Wari political phenomenon, from the indirect and at times unidirectional evidence of Wari material culture or emulations within independent polities.2 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Electronic voting and invalid votes: evidence from a natural experiment in Peru(Springer Science+Business Media, 2026-01-01)This paper examines the impact of electronic voting in Peru. Our empirical analysis exploits variation from a natural experiment to implement a difference-in-difference strategy. Our estimates indicate that electronic voting reduced the share of invalid votes by almost two-thirds. This reduction appears to be driven by fewer voter errors rather than changes in protest voting. However, in contrast to recent studies, we find no evidence of substantial changes in other electoral outcomes, such as turnout or vote composition.