The Purpose in Life Test is a measure of purpose in life widely used in many cultures and countries; however, cross-cultural assessments are scarce. The present study aimed to evaluate the cross-cultural measurement invariance of the PIL in the general population of seven Latin American countries. A total of 4306 people participated, selected by non-probabilistic convenience sampling, where Uruguay has the highest mean age ; while Ecuador has the lowest mean age. Furthermore, in each country, there is a higher proportion (...) of women than men. Using Multi-Group Confirmatory Factor Analysis, the factorial structure does not show evidence of invariance among the included countries. However, based on the Multi-Group Factor Analysis Alignment, there is evidence that a three-dimensional structure of the PIL is the same in the participating countries. Results based on item response theory indicate that most PIL items can significantly differentiate responses according to the level of life purpose. In addition, people with low life purpose will tend to choose the lower response alternatives on the PIL; while people with higher life purpose will choose higher response alternatives. The findings indicate that the PIL has the potential to increase knowledge about how people conceive and experience their purpose in life in different countries. (shrink)

After briefly considering the ancient Greek and nineteenth-century history of incommensurables (magnitudes that do not have a common aliquot part) and incomparables (magnitudes such that the larger can never be surpassed by any finite number of additions of the smaller to itself), this paper undertakes two tasks. The first task is to consider whether the numerical accommodation of incommensurables by means of the extension of the ordered field of rational numbers to the field of reals is `similar' or analogous to (...) the numerical accommodation of incomparables by means of the extension of the ordered field of reals to the field of hyperreals. The second task is to evaluate several contemporary attempts to use concepts and techniques of the nonstandard mathematics of hyperreals to address classical, Zenonian puzzles concerning continuous magnitudes. The result of both these undertakings is, in a certain sense, `deflationary'. (shrink)

This historical survey of political philosophy explores the theme of how political philosophy relates to the nature of man. It illustrates how great political thinkers have always grounded their political thought in what the author terms a 'normative anthropology', which typically has not only ethical but also metaphysical or theological components.

Rivalry is a key feature of scientific endeavour. This is an examination of eight instances in the history of science and technology that changed the world. They all illustrate various forms of rivalry - between individuals, institutions, even nations - and to what extent it played a pivotal role.

Giordano Bruno (1548-1600) was a mystic, philosopher and scientist whose ideas were decades ahead of their time. A proponent of a unificatory vision of science, he was both a champion of the occult as Newton would be after him, and a torch-bearer for the sort of holistic dreams that Leonardo had cherished before him. As such he is perfect material for the third in Michael White's loose trilogy of science biographies - after Newton, the last sorcerer, and Leonardo, the first (...) scientist, we have Bruno, science's first martyr. THE POPE AND THE HERETIC re-creates not just the vibrancy of intellectual life at the height of the Renaissance but also the horrific cost of pursuing ideas which ran counter to the orthodoxy of the Catholic Church. After almost eight years' imprisonment and torture at the hands of the Inquisition, Bruno was burned at the stake for his beliefs - or rather, his refusal to accept that intellectual investigation was limited by the dictats of Rome. His life and martyrdom are the subjects of this fascinating book. (shrink)