William Abraham studied Philosophy at the University of Ghana, and even more Philosophy at Oxford University. Thereafter, he gained permission to take part in the competitive examination and interview for a fellowship at All Souls' College. The examination was once described, with some exaggeration, as 'the hardest exam in the world!' It included a three-hour essay. Following his success in becoming the first African fellow of All Souls, his interest in African politics quickly developed into a Pan-African perspective. The (...) Mind of Africa, written while he was still at All Souls, was a fruit of that enlarged perspective. After several years as a Fellow, he had occasion to visit Ghana in 1962. There Kwame Nkrumah, then President of Ghana, successfully persuaded him to return to Ghana to teach at the University of Ghana, Legon and he subsequently resigned from All Souls. In 1968, he went to the United States as a visiting professor. This was followed by invitations to teach at various academic institutions there, including Berkeley and Stanford. He subsequently settled in California, where he continued to teach and research philosophy in the University of California at Santa Cruz until his retirement. The Mind of Africa appeared at a time when a number of African countries were obtaining, or fighting for, their political freedom from their colonial rulers and becoming independent nations and expecting to build new societies in accordance with their own visions and conceptions, though not necessarily jettisoning all the features of their colonial heritage. Building new societies requires appropriate ideologies and philosophies fashioned within the crucible of their cultural and historical experiences. Thus, the relation between ideology and society is taken up at the very outset of the book... The Mind of Africa is important for Africa's future and identity. (shrink)

Paralogismen betreffs der Leibnizschen Prädikatlehre werden aufgezeigt und widerlegt. Enthaltensein heißt die Inverse von Ableitung; den zwei Arten von Ableitung, die Leibniz kennt, entsprechen zwei Arten von Enthaltensein. Die beiden Arten von Enthaltensein bieten Leibniz die Möglichkeit zu der logischen und irreduziblen Unterscheidung zwischen notwendigen und bedingten Wahrheiten. Die Unterscheidung zwischen einem Individuum und einer Eigenschaft wird mit mengentheoretischen Methoden und auch mit Hilfe von epistemologischen Begriffen untersucht. Die besondere kategorische Form des Aussagesatzes impliziert, daß es für alle Aussagesätze nur (...) eine einzige Tiefen-Grammatik gibt, welche wesentlich verschiedene Ausdruckweisen von kategorischen Aussagen umfaßt. (shrink)

ABSTRACT Dance requires optimal range-of-motion and cognitive abilities. Mental imagery is a recommended, yet under-researched, training method for enhancing both of these. This study investigated the effect of Dynamic Neuro-Cognitive Imagery (DNI™) training on developpé performance (measured by gesturing ankle height and self-reported observations) and kinematics (measured by hip and pelvic range-of-motion), as well as on dance imagery abilities. Thirty-four university-level dance students (M age = 19.70 + 1.57) were measured performing three developpé tasks (i.e., 4 repetitions, 8 consecutive seconds (...) hold, and single repetition) at three time-points (2 x pre-, 1 x post-intervention). Data were collected using three-dimensional motion capture, mental imagery questionnaires, and subjective reports. Following the DNI™ intervention, significant increases (p <.01) were detected in gesturing ankle height, as well as in hip flexion and abduction range-of-motion, without significant changes in pelvic alignment. These gains were accompanied by self-reported decrease (p <.05) in level of difficulty experienced and significant improvements in kinesthetic (p <.05) and dance (p <.01) imagery abilities. This study provides evidence for the motor and non-motor benefits of DNI™ training in university-level dance students. (shrink)

This article deals with a set-theoretic interpretation of the Talmudic rules of General and Specific, known as Klal and Prat (KP), Prat and Klal (PK), Klal and Prat and Klal (KPK) and Prat and Klal and Prat (PKP).

Intrateam competition is an inherently social and interactional process, yet it is not often studied as such. Research on competition is mostly limited to studying it as an individual state and assumes that the resulting team outcomes are equivalent across different competition types. Often overlooked in competition research are the means through which competition can lead to constructive outcomes for the team. Constructive competition occurs when the primary motivation is not to win at the expense of others, but rather to (...) make social comparisons and gain knowledge of relative competence. This study furthers insight into constructive competition by studying its interpersonal characteristics as it develops within a team, and its impact on task conflict, perceived performance, and team satisfaction. The conversations of 24 student project teams were recorded over 4 weeks and analyzed, operationalizing competition as an attempt to exert control and influence on the team. Each individual then provided sociometric ratings of perceived performance of each team member, and rated the level of task conflict and satisfaction of the team. The effects of competition on perceived performance and team satisfaction, both directly and indirectly through task conflict, were examined. Findings demonstrated a negative direct effect of competition on the range of perceived performance ratings, and a positive indirect effect of competition on team satisfaction as mediated through task conflict. The study broadens understanding on the construct of competition and underscores the positive implications competition can bring to the teams. (shrink)

In this article I have tried to rebut certain types of arguments which purport to show not merely that God does not exist but that the notion of necessary existence is itself either self-contradictory or senseless. In showing that it is not self-contradictory I have allowed myself the luxury of a negative and a positive approach. Negatively, I have had to show that when the accusation of self-contradiction is made, it is often accompanied, not by an argument but by a (...) sheer assertion. On the rare occasions when an argument is forthcoming, the arguments, I have tried to show, have been invalid, not even, inconclusive. And to the extent that Kant may be said to have argued not simply the impossibility of a genuine proof of the existence of God, but indeed the impossibility of the concept of necessary existence, I have argued out the weakness of Kant's arguments, the most notable of which I have discussed in some detail. Finally, to establish the genuineness of the concept of necessary existence, positively, I have paradoxically made use of a notion from Russell's logic. (shrink)

This volume of newly commissioned essays provides comprehensive coverage of African philosophy, ranging across disciplines and throughout the ages. Offers a distinctive historical treatment of African philosophy. Covers all the main branches of philosophy as addressed in the African tradition. Includes accounts of pre-colonial African philosophy and contemporary political thought.

This volume presents the concept of Ecoscape as spatial interrelations, or spatially patterned processes, that are constitutive of an environment_an ecosystem. Contributors investigate environmental issues concerning the human impact on geohistory, food distribution, genetically modified biota, waste management, scientific mapping, and the rethinking of human identity.

The study of anarchism as a philosophical, political, and social movement has burgeoned both in the academy and in the global activist community in recent years. Taking advantage of this boom in anarchist scholarship, Nathan J. Jun and Shane Wahl have compiled twenty-six cutting-edge essays on this timely topic in New Perspectives on Anarchism.

This text proposes an interpretation of the work of Franklin Leopoldo e Silva based on the reading of some of his numerous published articles and books, without neglecting the classes and guidance received from the stage of Scientific Initiation to Postdoctoral studies. Precisely, by highlighting the importance of three thinkers widely studied by Professor Franklin – Berkeley, Bergson and William James –, we suggest that at the heart of this philosophical experience there would be a constant: empiricism. Whether in the (...) classical or radical version, the line we draw in this multiplicity reveals an openness to concrete empiricism. (shrink)

This article examines whether people share the Gettier intuition (viz. that someone who has a true justified belief that p may nonetheless fail to know that p) in 24 sites, located in 23 countries (counting Hong Kong as a distinct country) and across 17 languages. We also consider the possible influence of gender and personality on this intuition with a very large sample size. Finally, we examine whether the Gettier intuition varies across people as a function of their disposition to (...) engage in “reflective” thinking. (shrink)

In the remainder of this article, we will disarm an important motivation for epistemic contextualism and interest-relative invariantism. We will accomplish this by presenting a stringent test of whether there is a stakes effect on ordinary knowledge ascription. Having shown that, even on a stringent way of testing, stakes fail to impact ordinary knowledge ascription, we will conclude that we should take another look at classical invariantism. Here is how we will proceed. Section 1 lays out some limitations of previous (...) research on stakes. Section 2 presents our study and concludes that there is little evidence for a substantial stakes effect. Section 3 responds to objections. The conclusion clears the way for classical invariantism. (shrink)

Psychiatry is rapidly adopting digital phenotyping and artificial intelligence/machine learning tools to study mental illness based on tracking participants’ locations, online activity, phone and text message usage, heart rate, sleep, physical activity, and more. Existing ethical frameworks for return of individual research results (IRRs) are inadequate to guide researchers for when, if, and how to return this unprecedented number of potentially sensitive results about each participant’s real-world behavior. To address this gap, we convened an interdisciplinary expert working group, supported by (...) a National Institute of Mental Health grant. Building on established guidelines and the emerging norm of returning results in participant-centered research, we present a novel framework specific to the ethical, legal, and social implications of returning IRRs in digital phenotyping research. Our framework offers researchers, clinicians, and Institutional Review Boards (IRBs) urgently needed guidance, and the principles developed here in the context of psychiatry will be readily adaptable to other therapeutic areas. (shrink)

Orot ha-Torah : 13 peraḳim ʻal ʻerekh ha-Torah, limudah ṿe-hadrakhatah -- Orot ha-teshuvah : 17 peraḳim ʻal ʻerekh ha-teshuvah ṿe-hadrakhatah be-ḥaye ha-peraṭ uve-ḥaye ha-kelal.

O objetivo deste artigo é examinar a relação entre ser e perceber a partir da análise do princípio central da filosofia de George Berkeley - esse est percipi -, conforme é apresentado na obra A treatise concerning the principles of human knowledge. Para desenvolver essa análise e seguindo o tratamento dado por Grayling à fundamentação desse princípio, pretendemos mostrar que os argumentos de Berkeley se dispõem em três níveis: o estritamente empírico ; o fenômenico ; e o metafísico que, em (...) última instânci, explica os dois anteriores. (shrink)

When classical mechanics is seen as the short-wavelength limit of quantum mechanics (i.e., as the limit of geometrical optics), it becomes clear just how serious and all-pervasive the measurement problem is. This formulation also leads us into the Bohm theory. But this theory has drawbacks: its nonuniqueness, in particular, and its nonlocality. I argue that these both reflect an underlying problem concerning information, which is actually a deeper version of the measurement problem itself.