To what extent can external incentives influence students’ effort and learning in online course contexts? While cognitive science research has found that monetary incentives can increase goal-directed cognitive effort in certain laboratory tasks, attempts to use monetary incentives to increase students’ academic performance in naturalistic settings has shown mixed results. In two experiments, we tested the influence of a monetary incentive on immediate and delayed tests of computer-based educational performance. In Experiment 1, participants were assigned to receive monetary incentives for (...) correct quiz responses, or receive no additional incentive for correct responses other than finding out their score, and we found no significant difference in total score across groups. In Experiment 2, we used a within-subjects design to test whether participants performed better when they were provided monetary incentives for correct responses on quiz questions. Here, participants performed significantly better on incentivized quiz questions. Thus, monetary incentives may increase performance in online learning tasks when participants can anchor the “stakes” of an incentive compared to no external incentive. These findings highlight potential benefits of external incentives for promoting effort and learning in online contexts, although further research is needed to determine the most useful educationally-relevant extrinsic incentives, as well as potential negative effects of incentives on long-term intrinsic motivation. (shrink)

We present here the hypothesis that the unique microenvironmental pH landscape of acid‐base transporting epithelia is an important factor in development of epithelial cancers, by rendering the epithelial and stromal cells pre‐adapted to the heterogeneous extracellular pH (pHe) in the tumor microenvironment. Cells residing in organs with net acid‐base transporting epithelia such as the pancreatic ductal and gastric epithelia are exposed to very different, temporally highly variable pHe values apically and basolaterally. This translates into spatially and temporally non‐uniform intracellular pH (...) (pHi) patterns. Disturbed pHe‐ and pHi‐homeostasis contributes to essentially all hallmarks of cancer. Our hypothesis, that the physiological pHe microenvironment in acid‐base secreting epithelia shapes cancers arising in these tissues, can be tested using novel imaging tools. The acidic tumor pHe in turn might be exploited therapeutically. Pancreatic cancers are used as our prime example, but we propose that this concept is also relevant for other cancers of acid‐base transporting epithelia. (shrink)

The majority of food in the US is distributed through global/national supply chains that exclude locally-produced goods. This situation offers opportunities to increase local food production and consumption and is influenced by constraints that limit the scale of these activities. We conducted a study to assess perspectives of producers and consumers engaged in food systems of a major Midwestern city. We examined producers’ willingness to include/increase cultivation of local foods and consumers’ interest in purchasing/increasing local foods. We used focus groups (...) of producers (two groups of conventional farmers, four local food producers) and consumers (three conventional market participants, two locavores) to pose questions about production/consumption of local foods. We transcribed discussions verbatim and examined text to identify themes, using separate affinity diagrams for producers and consumers. We found producers and consumers are influenced by the _status quo_ and real and perceived barriers to local foods. We also learned participants believed increasing production and consumption of local foods would benefit their community and creating better infrastructure could enhance efforts to scale up local food systems. Focus group participants also indicated support from external champions/programs could support expansion of local foods. We learned that diversifying local food production was viewed as a way to support local community, increase access to healthy foods and reduce environmental impacts of conventional production. Our research indicates that encouraging producers and consumers in local food systems will be more successful when support for the local community is emphasized. (shrink)

"M. F. Simone Roberts's A Poetics of Being-Two is animated by a lively and engaging voice, drawing readers in with a sense of serious purpose working (delightfully) in tandem with a sense of humor. Roberts's aesthetics and her close readings of Yves Bonnefoy, St-John Perse, and Jorie Graham clearly demonstrate the literary effectiveness of Irigarayan sexual difference as an analytic trope, even as they emphasize the philosophical and political possibilities sexual difference opens up for feminism, environmentalism, and all levels of (...) contemporary cultural critique and activism."—Gail M. Schwab, Hofstra University -/- In An Ethics of Sexual Difference, Irigaray calls for a new poetics in the sense of both art and life. Rather than a critique from within philosophy, A Poetics of Being-Two tests Irigaray's ethics by extending it to other sites of cultural production. Where Irigaray's method finds stirrings and repressions of sexual difference in philosophy, this project explores that tension in poetics. Building from Irigaray's ethics, the book describes a poetics of being-two as concerns gendered subjectivity in literary poetics and then traces the on-going emergence of a poetics of being-two in the post-symbolist poetic tradition. Irigaray scholars will be interested in the sustained interpolation of Irigaray's ethical concepts as principles for a critical aesthetics and in their hermeneutic application in reading a literary tradition. Readers in comparative literature will find the first sustained feminist engagements with the major French poets Bonnefoy and Perse and an elucidation of their influence on the Pulitzer Prize winning poet Jorie Graham. (shrink)

The paper examines J. Hintikka’s thesis that Euclid’s procedure of geometrical proof had been «paradigm» or «model» for Kant’s notion of the mathematical method. The detailed re-construction of the researcher’s arguments allows to reveal Hintikka’s main thesis, namely, that écthesis as a structural element of Euclidean proposition allows explanation of Kant’s notion of construction. However, in-depth analysis of Euclidean proof structure, compared also with Proclus’ and Th. Heath’s comments, shows that terminologically and functionally this element does not perform its supposed (...) role of construction and is not fundamental to the struc-ture of proposition. Also Hintikka’s thesis that intuition is just a representation of the individu-al has weak explanatory potential because Kant’s explication of construction is always correla-tive with intuition a priori, that is, with imagination of a geometric concept in space as a form of pure intuition. In conclusion, the author mentions the three sources of Hintikka’s interpreta-tion that could be links between Kant and ancient origins of the mathematical method: notion of construction by Ch. A. Hausen, translation of the «Elements» by J. F. Lorenz and J. Ch. Schwab’s considerations concerning the structure of geometric proof. (shrink)

Einleitung : Zur Entstehung der Schrift ; Zum Kontext der Schrift ; Zur Wirkung der Schrift ; Die zentralen Themen der Schrift -- Hinweise zur Edition -- Siglen und Kurztitel -- Bibliographische Angaben -- Karl Leonhard Reinhold : Ueber das Fundament des philosophischen Wissens nebst einigen Erläuterungen über die Theorie des Vorstellungsvermögens. Vorrede -- Uever das Fundament des philosophischen Wissens -- Die in 26sten Stück der A.L.Z. von 1791 enthaltene Beurtheilung der Reinholdschen Elementarphilosophie -- Des Herrn Hofrath und Professor (...) class='Hi'>Schwab Gedanken über die Reinholdsche Theorie des Vorstellungsvermögens. Im 2ten St. des 3ten Bandes des Eberhardschen Magazins. Geprüft von M.F.C. Forberg -- Anhang : Allgemeine Literatur-Zeitung 26/27. 28. Januar 1791, 201-208; 209-214 [Rezensent A. W. Rehberg] (Beyträge zur Berichtigung bisheriger Misverständnisse der Philosophen. Erster Band) ; Philosophisches Magazin. Hg. von Johann August Eberhard. Dritten Bandes zweytes Stück. Halle 1790, 125-147 (Ueber den Reinholdischen Versuch einer neuen Theorie des menschlichen Vorstellungsvermögens, non J. C. Schwab). (shrink)

This book addresses the most important questions asked about higher education: What should its content be? What should we educate for, and why? What constitutes a meaningful liberal education, as distinct from mere training for a vocation? These and many other questions are addressed by Reuben Abel, M.H. Abrams, Robert L. Bartley, Ronald Berman, Also S. Bernardo, Wm. Theodore deBary, Gray Dorsey, Joseph Dunner, Nathan Glazer, Feliks Gross, Gertrude Himmelfarb, Gerald Holton, Sidney Hook, Charles Issawi, Montimer R. Kadish, Paul Oscar (...) Krissteller, paul Kurtz, Herbert I. London, Ernest Nagel, Henry R. Novotny, Frederick A. Olafson, Michael Rabin, Howard B. Radest, Joseph J. Schwab, Robert F. Sexton, Thomas Sowell, John B. Stephenson, and Miro M. Todorovich. (shrink)

In a 1793 essay, J. Ch. Schwab claimed that Kant's distinction between analytic and synthetic judgments was already known to the Megarian philosopher Stilpo. Schwab's essay was criticised as early as 1794 by J. F. Ch. Gräffe. In a 1789 essay, J. A. Eberhard had also denied the originality of Kant's division of judgments and made certain indications suggesting that Aristotle was aware of the distinction. In this paper, I propose a fresh examination of why Schwab is (...) wrong to attribute knowledge of Kant's division of judgments to Stilpo – a second look which, however, does not disregard Gräffe's contributions to the discussion. Second, I argue that, in a precise sense, Kant's division of judgments is indeed original, but that the analytic – synthetic distinction was nevertheless in a sense known to Aristotle. The assessment of these alleged precedents sheds light no only on the novelty of Kant's philosophical project but also on what may be called the "the paradox of the discovery of an evident philosophical distinction". (shrink)

Der Beschreibung der zeitlichen Entwicklung lebender Systeme kann eine reine Differentialanalyse nicht genügen. In solchen Fällen muss man sich an Stelle der gewöhnlichen Differentialgleichungen der integraldifferentiellen, bezw. der Integralgleichungen bedienen. Zur leichteren Veranschaulichung der mathematischen Darstellung betrachtet Verfasser zuerst diejenigen Systeme, deren innerer Zustand sich durch ein einziges Parameterc bestimmen lässt. Die zeitliche Entwicklung eines leblosen Systems dieser Klasse werde durch die Differentialgleichung $$\frac{{dc}}{{dt}} = kf...$$ dargestellt, wot=Zeit, undk eine Funktion der äusseren Parameterα, Β, γ. ist. Im Falle eines jeden (...) Systems sind die äusseren Parameterα, Β, γ. charakteristische individuelle Funktionen der Zeit. Misst manc am. Zeitpunktt, so lässt sich die Zukunft des Systems vermittelst der Gleichung berechnen, wenn die zukünftigen Werte der äusseren Parameter gegeben sind. Solche Systeme nennt Verfasser nicht-historische Systeme. Im Falle der lebenden Systeme werde die zeitliche Entwicklung durch die Integral-differentialgleichung $$\frac{{dc}}{{dt}} = k_1 f_1 + \mathop \smallint \limits_{t - \lambda }^t k_2 f_2 dt........$$ dargestellt, wof 1 undf 2 Funktionen des Zustandsparametersc, undk 1 undk 2 Funktionen der äusseren Parameter sind. Das Zeitintegral erstreckt sich auf das vergangene Zeitintervalt-λ →t, woλ einen positiven endlichen konstanten Wert besitzt. Diese Systeme nennt Verfasser historische Systeme. Setzt manH für das darin enthaltene Integralglied, so verwandelt sich die Gleichung in: $$\frac{{dc}}{{dt}} = k_1 f_1 + H..........$$ Misst man nunc am Zeitpunktt, so kann man in diesem Fall die Zukunft des Systems ohne Kenntnis des historischen GliedsH nicht berechnen. Das Vorkommen des historischen IntegralgliedsH nennt Verfasser Chronoholismus. Man kann deshalb die historischen Systeme auch chronoholistische Systeme nennen. Die biologische Interpretation dieser Betrachtungsweise wird vom Verfasser diskutiert, und die Gleichung auf Systeme mit erblichen Eigenschaften ausgedehnt. Es werden zuletzt Systeme mit vielen Zustandsparametern in gewissen einfachen Fällen kurz behandelt. L'analyse différentielle ne suffit pas, selon l'avis de de l'auteur, pour la description de l'évolution des systèmes vivants au cours des temps. Il faut utiliser dans ces cas les équations intégro-différentielles ou intégrales. Pour faciliter le traÎtement mathématique, on peut considérer d'abord les systèmes dont l'état intérieur est défini par un seul paramètrec. L'évolution d'un système inanimé de cette classe se laisse décrire par l'équation différentielle $$\frac{{dc}}{{dt}} = k f,...........$$ oùt=temps, etk est une fonction déterminée des paramètres extérieurs α,Β, γ. Si l'on connaÎtc à un temps donnét, l'état du système à un temps futurt′ se laisse prévoir au moyen de l'équation, quand les valeurs des paramètres extérieurs dans l'intervallet → t∼' sont fixées. L'auteur appelle les systèmes de cette classe des systèmes non-historiques. Pour les systèmes vivants, il faut se servir, selon l'avis de l'auteur, des équations intégro-différentielles. Pour les systèmes définis par un seul paramètrec, on peut se servir, par exemple, de l'équation $$\frac{{dc}}{{dt}} = k_1 f_1 + \mathop \smallint \limits_{t - \lambda }^t k_2 f_2 dt........$$ où k1 et k2 sont des fonctions déterminées des paramètres extérieurs. L'intégrale s'étend sur l'intervallet-λ→ t où λ est positif et constant. En indiquant le terme intégral par le symboleH, on peut écrire $$\frac{{dc}}{{dt}} = k_1 f_1 + H..........$$ La connaissance de c à un temps donnét ne laisse pas prévoir l'état du système à un temps futurt′ sans connaissance du terme historiqueH, quand mÊme les paramètres α, Β, γ,..., seraient des fonctions déterminées du temps dans l'intervallet→t′. L'auteur appelle l'existence du terme intégral historiqueH le chronoholisme. On peut appeler les systèmes de cette classe des systèmes historiques ou chronoholistiques. L'interprétation biologique de cette faÇon de traÎter les systèmes vivants est discutée par l'auteur, qui étend l'équation pour le faire représenter aussi les propriétés héréditaires des Êtres vivants. Quelques cas de systèmes dont l'état intérieur est défini par plusieurs paramètres et plusieurs phases sont traités brièvement. (shrink)

In a discussion-note in Mind, Father P. M. Farrell, O.P., gave an account, in what he admitted to be an embarrassingly brief compass, of the Thomist doctrine concerning evil. There is one sentence in this discussion which at first glance appears paradoxical. Father Farrell has been arguing that a universe containing ‘corruptible good’ as well as incorruptible is better than one containing ‘incorruptible good’ only. He continues: ‘If, however, they are to manifest this corruptible good, they must be corruptible and (...) they must sometimes corrupt.’ The final words, despite Father Farrell's italics, strike one as expressing, not a self-evident truth, but a non sequitur. The fact that I am capable of committing murder does not entail that I will at some time commit it. It is not immediately obvious that a similar entailment holds in the case of corruption and corruptibility. (shrink)

" -- F. Bradford Wallack The twentieth century has seen the greatest innovations in philosophical cosmology since Newton and Descartes, and Alfred North Whitehead was the first and greatest of the philosophers to work out these innovations ...

The use of human fetal tissue for scientific research has enormous potential but is subject to government legislation. In the United Kingdom the Polkinghorne Committee's guidelines were accepted by the Department of Health in 1990. These guidelines set out to protect women undergoing termination of pregnancy from exploitation but in so doing may significantly restrict potential research. Although the committee took evidence from a wide variety of experts they did not seek the views of the general public. We asked 108 (...) women about to have a therapeutic abortion; 167 women who had had a pregnancy terminated in the past, and 419 women who had never had an abortion, their views on research using human fetal tissue. Regardless of their past experiences the women were overwhelmingly in favour of research using fetal tissue (94 per cent). They made little distinction between basic research and research with obvious clinical relevance and supported the concept of using transplanted fetal tissue for the treatment of adult disease such as Parkinsonism. Women about to undergo an abortion were significantly more likely (p < 0.001) to approve of all types of research including that aimed at improving methods of abortion and research using live fetuses in utero. (shrink)