Knuth-Bendix algorithm and the conjugacy problems in monoids

We present an algorithmic approach to the conjugacy problems in monoids, using rewriting systems. We extend the classical theory of rewriting developed by Knuth and Bendix to a rewriting that takes into account the cyclic conjugates.Comment: This is a new version of the paper 'The conjugacy problems in monoids and semigroups'. This version will appear in the journal 'Semigroup forum

The sobering: delusions of authenticity and relaity in Philip Roth

Political Philosophy and Ethic

Fanaticism as a Worldview

Political Philosophy and Ethic

Nihilism and fiction

Political Philosophy and Ethic

On the place of consciousness within the will to power

Political Philosophy and Ethic

Self-becoming, culture and education from Schopenhauer as educator to Ecce Homo

Political Philosophy and Ethic

Hyperbole and conflict in the slave revolt in morality

Political Philosophy and Ethic

Nietzsche and the Stoic Concept of Recentes Opiniones

Political Philosophy and Ethic

The duty of violence

This essay argues that the deontological view of morality is connected to extreme and massive forms of violence through a kind of phenomenological necessity. In the first main section, I examine one family of such violence, which usually comes under the label of "religious violence". I argue that it is not the religious element but the disqualification of context from the realm of justification which characterizes such violence. In the second main section, I examine the phenomenology of duty to conclude that duty, by definition, denies any normative relevance to context. In the third main section, I use this sketch of a phenomenology of duty to propose a hypothesis about the underpinnings of the connection between mass violence and duty, namely, that the notion of duty carries with it the exclusion of moderation, and places the agent before an impossible situation that can only be resolved by violence.Political Philosophy and Ethic

Early intervention with Bifidobacterium lactis NCC2818 modulates the host-microbe interface independent of the sustained changes induced by the neonatal environment

Inflammatory and metabolic diseases can originate during early-life and have been correlated with shifts in intestinal microbial ecology. Here we demonstrate that minor environmental fluctuations during the early neonatal period had sustained effects on the developing porcine microbiota and host-microbe interface. These inter-replicate effects appear to originate during the first day of life, and are likely to reflect very early microbiota acquisition from the environment. We statistically link early systemic inflammation with later local increases in inflammatory cytokine (IL-17) production, which could have important enteric health implications. Immunity, intestinal barrier function, host metabolism and host-microbiota co-metabolism were further modified by Bifidobacterium lactis NCC2818 supplementation, although composition of the in situ microbiota remained unchanged. Finally, our robust model identified novel, strong correlations between urinary metabolites (eg malonate, phenylacetylglycine, alanine) and mucosal immunoglobulin (IgM) and cytokine (IL-10, IL-4) production, thus providing the possibility of the development of urinary ‘dipstick’ tests to assess non-accessible mucosal immune development and identify early precursors (biomarkers) of disease. These results have important implications for infants exposed to neonatal factors including caesarean delivery, antibiotic therapy and delayed discharge from hospital environments, which may predispose to the development of inflammatory and metabolic diseases in later life