Hugo de Vries claimed that he had discovered Mendel's laws before he found Mendel's paper. De Vries's first ratios, published in 1897, for the second generation of hybrids were 2/3:1/3 and 80%:20%. By 1900, both of these ratios had become 3:1. These changing ratios suggest that as late as 1897 de Vries had not discovered the laws, although he asserted, from 1900 on, that he had found the laws in 1896. An Appendix details de Vries's Mendelian experiments as described in (...) the original edition of volume two of Die Mutationstheorie, but omitted entirely from the English translation. (shrink)

Summary The common view has been that Darwin regarded species as artificial and arbitrary constructions of taxonomists, not as distinct natural units. However, in his transmutation notebooks he clearly subscribed to the reality of species, on the basis of the criterion of non-interbreeding. A consequence of this biological species concept was his identification of the acquisition of reproductive isolation as the mark of the completion of speciation. He developed in the notebooks a theory of geographic speciation on the grounds of (...) (a) an empirical correlation between barriers and the geographical distributions of allied species, (b) the analogy of artificial isolation in the formation of new domesticated varieties, and (c) the logical consequence of blending inheritance. A brief discussion of Darwin's species concept in later writings concludes the paper. (shrink)

Aldo Leopold was a pragmatist in the vernacular sense of the word. Bryan G. Norton claims that Leopold was also heavily influenced by American Pragmatism, a formal school of philosophy. As evidence, Norton offers Leopold's misquotation of a definition of right (as truth) by political economist, A.T. Hadley, who was an admirer of the philosophy of William James. A search of Leopold's digitised literary remains reveals no other evidence that Leopold was directly influenced by any actual American Pragmatist or by (...) Pragmatism (although he may have been indirectly influenced by Pragmatism early in his career). A 1923 reference, by Leopold, to Hadley and Hadley's putative definition of truth, cited by Norton, is dripping with irony. Leopold, as he matured philosophically, regarded a profound cultural shift from anthropocentric dominionism and consumerism to an evolutionary-ecological worldview and an associated non-anthropocentric 'land ethic' to be necessary for successful and sustainable conservation. Hadley espoused a brutal form of Social Darwinism and his philosophy, as expressed in the book of Hadley's that Norton cites, is politically reactionary, militaristic and unconcerned with conservation. Leopold's mature philosophy and Hadley's – far from consonant, as Norton claims – are diametrically opposed. (shrink)

J C Walker; The Philosopher’s Touchstone: towards pragmatic unity in educational studies, Journal of Philosophy of Education, Volume 19, Issue 2, 30 May 2006, P.

From the third century we pass to the thirteenth, from a century in which Europe is still pagan to a century in which Christianity has been so long established there that its paganism is wellnigh forgotten, from a century in which it is ruled by a Roman emperor to one in which ecclesiastically it is still ruled by Rome, but the empire has passed from the Roman to the Teuton.

In lieu of an abstract, here is a brief excerpt of the content:Comments on “Moral Complicity in Induced Pluripotent Stem Cell Research”W. Malcolm Byrnes, Ph.D. and Edward J. FurtonIn his article titled “Moral Complicity in Induced Pluripotent Stem Cell Research,” Mark T. Brown (2009) unfortunately mischaracterizes my ethical analysis of the use of induced pluripotent stem (iPS) cells for replacement therapies, or treatments (Byrnes 2008). In my paper, which Brown cites, I argue that, just as it is ethically acceptable (...) for parents to allow their children and themselves to be immunized using vaccines produced by cell lines derived from human fetuses aborted in the past, it is also acceptable for persons in the future to benefit from treatments that use iPS cells validated using human embryonic stem (ES) cell lines [End Page 202] derived in the past. The assumption I make is that iPS cells would have to be shown to be functionally equivalent to human ES cells—i.e., validated—before they could be used for cell replacement treatments. (If it turns out that this assumption is incorrect, and primate or even mouse ES cells can be used for the validation, then all residual ethical problems will disappear and there will be no ethical problems whatsoever associated with iPS cells.) I wrote:... [I]n both cases, the origin of the treatment is in a one-time event: either the one-time use of aborted fetuses to obtain cell lines (e.g., MRC-5 and WI- 38) to grow weakened virus strains for vaccine production, or the one-time destruction of human embryos to validate iPS cells, which then effectively replace embryonic stem cells. In the latter case, if no additional embryonic stem cell lines are derived, then derivation of the existing lines could be considered a “one-time” event in the past, albeit an event that extended over a several-year period(Byrnes 2008, p. 287, emphasis added).Note the phrase “if no additional embryonic stem cell lines are derived.” The derivation of ES cell lines inherently involves destruction of embryos; indeed, that is why many people, including me, are opposed to human ES cell research. In my article, I am arguing that, if no additional ES cell lines are derived, then no additional human embryos will be destroyed, and the destruction of human embryos will lie in the past. In this case, embryo destruction could be considered a past event, just as the abortion of a human fetus from which vaccine-producing cell lines were derived is a past, albeit tragic, event.In the process of building his argument that proponents of iPS cell research are morally complicit in embryo destruction, Brown (2009, p. 15) casts me as being in favor of the “derivation of new embryonic stem [cell lines].” This is the exact opposite of my position. In fact, I am opposed to further destruction of human embryos. I believe that the hundreds of ES cell lines already in existence are more than sufficient to validate iPS cells and so no additional lines need to be derived. This means that no additional human embryos will need to be destroyed.Apparently based on the misperception that I support future destruction of human embryos, Brown concludes that “Byrnes’s endorsement of ongoing iPSC validation studies would seem to implicate him and those who follow his lead in formal and material complicity in what they perceive as moral evil” (p. 16). He writes that “explicit formal complicity would attach because he [Byrnes] knowingly and intentionally recommends that embryos be killed in order to facilitate a transition to a future in which no more embryos need be destroyed” (p. 16). Additionally, my “followers” and I would be guilty of “proximate material complicity” as well as “remote material complicity” (p. 16). Unfortunately, this broad condemnation is based on a misconception of my actual position.An additional problem involves Brown’s use of a quotation he attributes to me: [End Page 203]Once embryonic stem cells are used to successfully validate iPS cells, they will no longer be needed and their association with iPS cells will lie in the past. Is there not an element of sadness and resignation in accepting something (iPS cells) associated with an unjust act (destruction of an... (shrink)

J C Walker; Dusting Off Educational Studies: a methodology for implementing certain proposals of John Wilson’s, Journal of Philosophy of Education, Volume 18, I.

Aims and background: Little is known about how participants perceive prevention trials, particularly trials designed to prevent mental illness. This study examined participants’ motives for participating in a trial and their views of randomisation and the ability to withdraw from a randomised controlled trial for prevention of depression. Methods: Participants were older adults reporting elevated depression symptoms living in urban and regional locations in Australia who had consented to participate in an RCT of interventions to prevent depression. Participants rated their (...) agreement with various statements describing motivations for enrolment in the trial and opinions regarding randomisation and withdrawal. Results: The majority of participants expressed a triad of altruistic motivation for participation, relative lack of concern about randomisation and commitment to the trial. Certain subgroups of participants, such as women and those with higher depression scores, reported higher levels of concern about specific issues. Conclusions: The findings suggest that participants enrolled in prevention trials for mental illness are likely to hold positive attitudes towards research trials. The identification of relationships between key person factors and trial-related attitudes enabled profiling of participant groups, which can inform recruitment strategies and interactions of participants and research projects in future prevention trials. (shrink)

James Bohman’s account of what might be involved in thinking about ‘democracy across borders,’ and specifically of what might be involved in thinking about a potential shift from dêmos to dêmoi, compels both affirmation and resistance. His account is both elegant and sharply focussed: positive attributes that nevertheless affirm a very particular understanding of elegance, and a precise focus that manages to evade many considerations that might be considered important by people seeking to think about democracies and their futures in (...) many different situations. (Published: 5 February 2010) Citation: Ethics & Global Politics, Vol. 3, No. 1, 2010, pp. 21-36. DOI: 10.3402/egp.v3i1.4851. (shrink)

C W Evers, J C Walker; Knowledge, Partitioned Sets and Extensionality: a refutation of the forms of knowledge thesis, Journal of Philosophy of Education, Volume.

While psychopathy research has been growing for decades, a relatively new area of research is corporate psychopathy. Corporate psychopaths are simply psychopaths working in organizational settings. They may be attracted to the financial, power, and status gains available in senior positions and can cause considerable damage within these roles from a manipulative interpersonal style to large-scale fraud. Based upon prior studies, we analyze psychopathy research pertaining to 23 moral emotions classified according to functional quality and target. Based upon our review, (...) we suggest that psychopaths are high in moral emotions associated with other-directed negative signals, low in self-directed negative signals, and low in other-directed positive signals. We found no empirical articles related to self-directed positive signals. This understanding of the specific moral emotion deficits of corporate psychopaths provides greater theoretical understanding and practical implications of knowing which individuals not to promote, though more research is needed on moral emotions that are faked for manipulative reasons. (shrink)

The purpose of this study was to examine the impact of parenting and adolescent fearfulness on adolescents’ pro‐social values and pro‐social and antisocial behaviour. A total of 134 adolescents (M age = 16.22, 72 girls, 62 boys) responded to questions regarding their own fearfulness, pro‐social values and pro‐social and antisocial behaviour, as well as their perceptions of maternal attachment and maternal appropriateness. Results revealed few main‐effect findings, most notably a negative relation between attachment and antisocial behaviour. However, findings pointed to (...) several multiplicative relations as a function of parenting, adolescent fearfulness, and child gender, including: (1) maternal appropriateness was more important for boys than for girls, (2) maternal attachment was related to greater importance of pro‐social values and higher pro‐social behaviour for boys low on fear and (3) maternal appropriateness was related to lower antisocial behaviour for boys low on fear. The discussion focuses on the importance of examining the multiplicative relations between parenting and adolescent temperament and the implications of this for both educators and parents. (shrink)

Its broad, winding river, crossed by a multitude of bridges; its surrounding hills, amongst which stands conspicuous the long line of the Hradcine, topped by a continuous stretch of stately buildings with the cathedral of St. Vitus towering above them; the wide expanse of its numerous streets, over which rise the spires of many churches, ancient towers, and the lofty walls of numerous municipal and university buildings; the long history to which its architecture bears everywhere striking witness and of which (...) its inhabitants are justly proud, rendered the city of Prague a no less fitting background for the eighth philosophical Congress than that which Oxford provided four years ago for the seventh. Nor was the hospitality which Czechoslovakia offered to its members a whit less cordial or less generous than that of England. The delegates who gathered together from all parts of Europe, from America, China, and from Japan, were welcomed both by the Minister for Foreign Affairs, Dr. Beneš by the Minister of Public Instruction, Dr. Krčmář, by the Mayor of Prague; and, were it not for his unfortunate illness, would have been received by the President of the Republic himself. The Společenský club was placed at their disposal. They were entertained at the Foreign Office to tea, and at the palace of the President to supper by his daughter, Dr. Alice Masaryk. Their railway fares and even their tram fares were considerably reduced. On Thursday they were conveyed by motor-cars to Konopišté, a beautiful castle, soaring above pine forests and overlooking an extensive lake, formerly the residence of the Archduke Franz-Ferdinand, now taken over by the State, but maintained exactly as it was when the unfortunate heir of the Emperor Franz-Joseph was living there. The arrangements for the Congress were excellent, thanks to its President, Dr. Rádl, and to an extremely efficient organizing committee which placed itself unreservedly and unremittingly at the disposal of the 350 active and 150 associated members who attended the various meetings. (shrink)

Simplicius, writing in the sixth century, distinguishes physical science from astronomy on the ground that, whereas it is the function of the physicist to “inquire into the nature of the heavens and the stars, into their potentialities, their quality, their becoming and passing away,” astronomy has no competence in questions of this primary character. Its function is “to determine the order of the heavenly bodies, their figures, magnitudes, distances from the earth, sun and moon, their eclipses, conjunctions, the quantitative and (...) qualitative properties of their motions,” etc. For this purpose it requires arithmetic and geometry, but cares not how the heavenly motions be described, whether in terms of excentrics or epicycles, so long as the appearances can thus be accounted for. (shrink)

C W Evers, J C Walker; Pyrotechnics Defended: a reply to Jim Mackenzie, Journal of Philosophy of Education, Volume 21, Issue 1, 30 May 2006, Pages 139–142, http.

In 1962 I offered an analysis of the Line and Cave which maintained that the four main divisions of each are parallel and interpreted the three stages of ascent in the Cave allegory as representing the three stages in Plato's educational programme: music and gymnastic, mathematics and dialectic. At that time a major portion of my task was to counter arguments which purported to show that the Line and Cave could not be parallel. The present situation is quite different since (...) recent writers, for the most part, not only take the four main divisions of the Cave as parallel to those of the Line, but also accept the restriction of the Cave allegory to moral and mathematical education as a crucial step in the establishing of this fact. This last move, which is clearly in harmony with the form and content of the Republic, enables us to allow for the ordinary unenlightened man to be at the bottom level of the Cave without our having to suggest that he confuses the shadows of visual objects with their originals, which could well be the case if the Cave were taken to represent all sense perception as such. Despite fairly general agreement on these basic points of interpretation there remains, however, a wide divergence of opinion as to the significance of the various levels of education or moral awareness portrayed by the Cave. In keeping with several recent papers on this topic I shall focus my attention on the bottom two stages of this allegory: the state of the prisoners viewing shadows on the cave wall and that of the released prisoners, still in the cave, but turned around and looking at the puppets which cast these shadows. (shrink)

As a conservation policy advocate and practitioner, Leopold was a pragmatist (in the vernacular sense of the word). He was not, however, a member of the school of philosophy known as American Pragmatism, nor was his environmental philosophy informed by any members of that school. Leopold's environmental philosophy was radically non-anthropocentric; he was an intellectual revolutionary and aspired to transform social values and institutions.

Working Virtue is the first substantial collective study of virtue theory and contemporary moral problems. Leading figures in ethical theory and applied ethics discuss topics in bioethics, professional ethics, ethics of the family, law, interpersonal ethics, and the emotions.Virtue ethics is centrally concerned with character traits or virtues and vices such as courage, kindness, and generosity. These character traits must be looked to in any attempt to understand which particular actions are right or wrong and how we ought to live (...) our lives. As a theoretical approach, virtue ethics has made an impressive comeback in relatively recent history, both posing an alternative to, and, in some ways, complementing well-known theoretical stances such as utilitarianism and deontology. Yet there is still very little material available that presents virtue-ethical approaches to practical contemporary moral problems, such as what we owe distant strangers, our parents, or even non-human animals. This book fills the gap by dealing with these and other pressing moral problems in a clear and theoretically nuanced manner. The contributors offer a variety of perspectives, including pluralistic, eudaimonistic, care-theoretical, Chinese, comparative, and stoic. This variety allows the reader to appreciate not only the wide range of topics for which a virtue-ethical approach may be fitting, but also the distinctive ways in which such an approach may be manifested. (shrink)

In Working Virtue: Virtue Ethics and Contemporary Moral Problems, leading figures in the fields of virtue ethics and ethics come together to present the first ...

We explored the relationship between 24 character strengths measured by the Global Assessment of Character Strengths (GACS), which was revised from the original VIA instrument, and moral functioning comprising postconventional moral reasoning, empathic traits and moral identity. Bayesian Model Averaging (BMA) was employed to explore the best models, which were more parsimonious than full regression models estimated through frequentist regression, predicting moral functioning indicators with the 24 candidate character strength predictors. Our exploration was conducted with a dataset collected from 666 (...) college students at a public university in the Southern United States. Results showed that character strengths as measured by GACS partially predicted relevant moral functioning indicators. Performance evaluation results demonstrated that the best models identified by BMA performed significantly better than the full models estimated by frequentist regression in terms of AIC, BIC, and cross-validation accuracy. We discuss theoretical and methodological implications of the findings for future studies addressing character strengths and moral functioning. (shrink)

Army Officers face increased moral pressure in modern warfare, where character judgement and ethical judgement are vital. This article reports the results of a study of 242 junior British Army officers using the Army Intermediate Concept Measure, comprising a series of professionally oriented moral dilemmas developed for the UK context. Results are suggestive of appropriate application of Army values to the dilemmas and of ethical reasoning aligning with Army excellence. The sample does slightly less well, however, for justification than for (...) action reasoning, and there are differences following initial training for infantry and artillery officers versus other branches of service. Dilemmas involving anti-torture methods and not covering up soldiers' failings generated best results compared to those requiring balance between compassion and mission, and negotiating personal relationships with military needs. Gender differences favouring women were less than those observed for other professional groups using similar measures. This research further develops a much-needed measure of ethical reasoning among junior Army officers, with potential for use among other ranks. This approach is advocated for other professional groups. (shrink)

While we often talk about time using spatial terms, experimental investigation of space-time associations has focused primarily on the space in front of the participant. This has had two consequences: the disregard of the space behind the participant and the creation of potential task demands produced by spatialized manual button-presses. We introduce and test a new paradigm that uses auditory stimuli and vocal responses to address these issues. Participants made temporal judgments about deictic or sequential relationships presented auditorily along a (...) body-centered sagittal or transversal axis. Results involving the transversal axis replicated previous work while sagittal axis results were surprising. Deictic judgments did not use the sagittal axis but sequential judgments did, in a previously undocumented way. Participants associated earlier judgments with the space in front of them and later judgments with the space behind them. These findings, using a new approach, p.. (shrink)