Space as an invention of biological organisms

The question of the nature of space around us has occupied thinkers since the dawn of humanity, with scientists and philosophers today implicitly assuming that space is something that exists objectively. Here we show that this does not have to be the case: the notion of space could emerge when biological organisms seek an economic representation of their sensorimotor flow. The emergence of spatial notions does not necessitate the existence of real physical space, but only requires the presence of sensorimotor invariants called `compensable' sensory changes. We show mathematically and then in simulations that na\"ive agents making no assumptions about the existence of space are able to learn these invariants and to build the abstract notion that physicists call rigid displacement, which is independent of what is being displaced. Rigid displacements may underly perception of space as an unchanging medium within which objects are described by their relative positions. Our findings suggest that the question of the nature of space, currently exclusive to philosophy and physics, should also be addressed from the standpoint of neuroscience and artificial intelligence

chapter 13

The Jean-Nicod Lectures 2002 (expanded version

Ocriplasmin in the treatment of vitreomacular traction in a patient with central retinal vein occlusion. a case report

Aim: To investigate the efficacy of intravitreal injection of ocriplasmin (JETREA®) in the treat-ment of vitreomacular traction (VMT). Materials and Methods: An 81-year-old man with VMT associated with central retinal vein occlusion in his left eye, was treated with a single intravitreal injection of ocriplasmin (25 μg). Best corrected visual acuity (BCVA), ocular fundus, and optical coherence tomography were examined before and after treatment. Results: Complete release of VMT produced a reduction of central macular thickness, ranging from 459 to 141 μm. BCVA remained stable. Discussion and Conclusions: The use of ocriplasmin was effective in the treatment of VMT. Ocriplasmin represents a valid alternative to conventional pars plana vitrec-tomy

Age-related changes in the respiratory system

This article summarises the main structural and physiological changes which take place in the lung from young adulthood to senescence. An understanding of these changes helps the clinician to correctly interpret some results of radiology and pulmonary function frequently seen in clinical practice. An appreciation of the altered physiology and the consequent reduction in pulmonary reserve should alert the physician to the need for a more critical evaluation of the various respiratory parameters measured during illness in an older patient. Rhythmic breathing occurs virtually continuously over a lifetime and the alveolar gas-exchanging surface is brought into contact with more than 270 million litres of air, which may contain harmful particulate matter and noxious gas elements. Thus to separate changes in the respiratory system caused by ageing itself from those caused by environmental or work-related factors is extremely difficult and sometimes impossible. Chronic obstructive pulmonary disease (COPD) is possibly the most important disease entity related to age and environment. Epidemiological studies show that the prevalence of COPD is increasing. In the 1990’s prognostic models of COPD were developed. These have shown that age, ventilatory function, gender and smoking were the major determinants for the development of COPD. Other important factors were outdoor air pollution and occupation.peer-reviewe

Comparing performance management systems

My thanks to Mr. Winston J. Zahra, Director of Operations, Sales & Marketing, Island Hotels Group; Mr. Sergio Vella, Director of Manufacturing, and Mr. Kenneth Formosa, HR Manager, both at Baxter Malta Ltd.; and Dr. Johnny Sung, Centre for Labour Market Studies, University of Leicester, U.K.This paper describes some of the salient performance management systems practised in two medium sized organisations in Malta. The emphasis shall be on HR practice and there shall be an attempt to discuss the systems in terms of differences and possible similarities. The analysis and ensuing discussion are based on the author's experience and observations made whilst working within the Human Resources Departments of both organisations. The comments made during these comparisons shall be seen in the light of local context and culture, as observed by a Maltese HR practitioner.peer-reviewe

Group peer disagreement

A popular view in mainstream social epistemology maintains that, in the face of a revealed peer disagreement over p, neither party should remain just as confident vis-a-vis p as she initially was. This ‘conciliatory’ insight has been defended with regard to individual epistemic peers. However, to the extent that (non-summativist) groups are candidates for group knowledge and beliefs, we should expect groups (no less than individuals) to be in the market for disagreements. The aim here will be to carve out and explore an extension of the conciliatory insight from individual peer disagreement to group peer disagreement; in doing so, I’ll raise and address three key problems that face any plausible defence of such a constraint

A Russellian tradition? Logic as a philosophical instrument

A Russellian tradition? Logic as a philosophical instrumen

Shaping Europe: The Path to European Integration according to Jean Monnet

This contribution is aimed at achieving an understanding of the political philosophy of Jean Monnet with regard to European integration. It draws on the archives of this founding father of a united Europe and contains numerous quotations, as our main concern was to allow him to speak for himself

Decision-Making: A Neuroeconomic Perspective

This article introduces and discusses from a philosophical point of view the nascent field of neuroeconomics, which is the study of neural mechanisms involved in decision-making and their economic significance. Following a survey of the ways in which decision-making is usually construed in philosophy, economics and psychology, I review many important findings in neuroeconomics to show that they suggest a revised picture of decision-making and ourselves as choosing agents. Finally, I outline a neuroeconomic account of irrationality