Observations of a sea urchin larvae show that most species adopt one of two life history strategies. One strategy is to make numerous small eggs, which develop into a larva with a required feeding period in the water column before metamorphosis. In contrast, the second strategy is to make fewer large eggs with a larva that does not feed, which reduces the time to metamorphosis and thus the time spent in the water column. The larvae associated with each strategy have (...) distinct morphologies and developmental processes that reflect their feeding requirements, so that those that feed exhibit indirect development with a complex larva, and those that do not feed form a morphologically simplified larva and exhibit direct development. Phylogenetic studies show that, in sea urchins, a feeding larva, the pluteus, is the ancestral form and the morphologically simplified direct‐developing larva is derived. The current hypothesis for evolution of the direct‐developing larval form in sea urchins suggests that major developmental changes occur by neutral loss of larval features after the crucial transition to a nonfeeding life history strategy. We present evidence from Clypeaster rosaceus, a sea urchin with a life history intermediate to the two strategies, which indicates that major developmental changes for accelerated development have been selected for in a larva that can still feed and maintains an outward, pluteus morphology. We suggest that transformation of larval form has resulted from strong selection on early initiation and acceleration of adult development. BioEssays 29:566–571, 2007. © 2007 Wiley Periodicals, Inc. (shrink)

This book traces the intellectual revolution initiated by Thales in the sixth century BC to its culmination in the metaphysics of Parmenides.

Background Informed consent is an integral component of good medical practice. Many researchers have investigated measures to improve the quality of informed consent, but it is not clear which techniques work best and why. To address this problem, we propose developing a core outcome set to evaluate interventions designed to improve the consent process for surgery in adult patients with capacity. Part of this process involves reviewing existing research that has reported what is important to patients and doctors in the (...) informed consent process. Methods This qualitative synthesis comprises four phases: identification of published papers and determining their relevance; appraisal of the quality of the papers; identification and summary of the key findings from each paper while determining the definitiveness of each finding against the primary data; comparison of key themes between papers such that findings are linked across studies. Results Searches of bibliographic databases returned 11,073 titles. Of these, 16 studies met the inclusion criteria. Studies were published between 1996 and 2016 and included a total of 367 patients and 74 health care providers. Thirteen studies collected data using in-depth interviews and constant comparison was the most common means of qualitative analysis. A total of 94 findings were extracted from the primary papers and divided into 17 categories and ultimately 6 synthesised findings related to: patient characteristics, knowledge, communication, the model patient, trust and decision making. Conclusions This qualitative meta-aggregation is the first to examine the issue of informed consent for surgery. It has revealed several outcomes deemed important to capture by patients and clinicians when evaluating the quality of a consent process. Some of these outcomes have not been examined previously in research comparing methods for informed consent. This review is an important step in the development of a COS to evaluate interventions designed to improve the consent process for surgery. Registration The study protocol was registered on the international prospective register for systematic reviews. (shrink)

This work provides a text and an extended study of those fragments of Heraclitus' philosophical utterances whose subject is the world as a whole rather than man and his part in it. Professor Kirk discusses fully the fragments which he finds genuine and treats in passing others that were generally accepted as genuine but here considered paraphrased or spurious. In securing his text, Professor Kirk has taken into account all the ancient testimonies, and in his critical work he (...) attached particular importance to the context in which each fragment is set. To each he gives a selective apparatus, a literal translation and and an extended commentary in which problems of textual and philosophical criticism are discussed. Ancient accounts of Heraclitus were inadequate and misleading, and as Kirk wrote, understanding was often hindered by excessive dogmatism and a selective use of the fragments. Professor Kirk's method is critical and objective, and his 1954 work marks a significant advance in the study of Presocratic thought. (shrink)

This book traces the intellectual revolution initiated by Thales in the sixth century BC to its culmination in the metaphysics of Parmenides.

This book traces the intellectual revolution initiated by Thales in the sixth century BC to its culmination in the metaphysics of Parmenides.

This article deals with four almost classic problems in Anaximander. of these the first is of comparatively minor importance, and the second is important not for what Anaximander thought but for what Aristotle thought he thought. Problem i is: Did Anaximander describe his as ? Problem 2: Did Aristotle mean Anaximander when he referred to people who postulated an intermediate substance ? Problem 3: Did Anaximander think that there were innumerable successive worlds? Problem 4: What is the extent and implication (...) of the extant fragment of Anaximander? Appended is a brief consideration of the nature of Theophrastus' source-material for Anaximander; on one's opinion of this question the assessment of the last two problems will clearly depend. (shrink)

Ludwig deals with the relations between language, thought, and rationality, and, especially, the role and status of assumptions about rationality in interpreting another’s speech and assigning contents to her psychological attitudes—her beliefs, desires, intentions, and so on. The chapter is organized around three questions: What is the relation between rationality and thought? What is the relation between rationality and language? What is the relation between thought and language? Ludwig argues that some large degree of rationality is required for thought and (...) consequently that same degree of rationality at least is required for language since language requires thought. Thought, however, does not require language. In answering questions and, Ludwig gives particular attention to Davidson’s arguments for the Principle of Charity, according to which it is constitutive of speakers that they are largely rational and largely right about the world, and to Davidson’s arguments for the thesis that without the power of speech we lack the power of thought. (shrink)

Let the label binary category terms refer to natural language expressions like ‘woman’, ‘man’, ‘female’, and ‘male’. Focusing on ‘woman’ and ‘female’, I develop a novel, empirically supported theory of the meanings of English binary category terms. Given plausible assumptions about the metaphysics of sex and gender, this gender-first theory predicts that the sentence ‘Trans women are women’ expresses a truth in all contexts and the sentence ‘Women are adult human females’ expresses a truth in most ordinary contexts — thus (...) that these two sentences can and usually do express logically consistent contents. The key feature of the proposed theory is that it treats both ‘woman’ and ‘female’ as sensitive to an individual’s gender when that individual belongs to a gendered category and to an individual’s sex otherwise. The existence and plausibility of a gender-first theory of this kind opens up conceptual room for trans-inclusive positions in the philosophy of sex and gender which endorse the claim that women are adult human females, thereby both accounting for trans women’s experiences of their bodies as female and helping to disarm the sentence ‘Women are adult human females’ as a trans-exclusionary slogan. (shrink)

During the excavations of 1924–5 at Karanis a papyrus of the second or early third century A.D. was discovered, and subsequently published by J. G. Winter , which under its single column has a subscribed title which should almost certainly be restored as ‘Alcidamas, On Homer’. The first fourteen lines of the papyrus give most of the story of Homer's death and the riddle that caused it, which is common to all the extant Lives of Homer; the remainder is a (...) general eulogy of Homer and a profession of transmitting his works to posterity. The interest of the discovery lies in the knowledge that it gives of a hitherto unrecorded work by Alcidamas, the rhetorician and contemporary of Isocrates, and the new fuel that it provides for an old controversy about the origins of the work known as the Certamen. The first part of this article aims at both re-examining the value of the papyrus and reopening some of the old questions on the Certamen. (shrink)

One of the curious things about Homeric studies is the way in which, although opinions in this field fluctuate violently, from time to time certain among them tend to become crystallized for no particular reason and are then accepted as something approaching orthodoxy. It is to try to delay such a crystallization, if it is not already too late, that I direct this brief coup d'ail at some current opinions on whether Homer—for the sake of clarity I apply this name (...) in the first instance to the monumental composer of the Iliad—used the aid of writing, and in general at the value of comparative inferences based on the heroic poetry of modern Yugoslavia. (shrink)

It seems very commonly agreed that Sappho's wedding-songs display none of the ritual obscenity so frequent in the genre. Thus D. L. Page wrote of fr. i ioa that ‘There is no trace here or elsewhere in Sappho of that ribaldry which was characteristic of the songs recited at this and other stages of Greek wedding-ceremonies’. Similarly Sir Maurice Bowra asserted of fr. 111 that it is ‘neither bawdy nor exalted, but playful. If the humour is a bit primitive, that (...) is due to tradition, which expected jokes at this level’. On the next page he writes of the songs sung outside the bridal chamber, as distinct from those sung in the procession thither, that ‘Here too Sappho seems to avoid bawdry but is not averse from rather elementary jokes’. (shrink)

It seems very commonly agreed that Sappho's wedding-songs display none of the ritual obscenity so frequent in the genre. Thus D. L. Page wrote of fr. i ioa that ‘There is no trace here or elsewhere in Sappho of that ribaldry which was characteristic of the songs recited at this and other stages of Greek wedding-ceremonies’. Similarly Sir Maurice Bowra asserted of fr. 111 that it is ‘neither bawdy nor exalted, but playful. If the humour is a bit primitive, that (...) is due to tradition, which expected jokes at this level’. On the next page he writes of the songs sung outside the bridal chamber, as distinct from those sung in the procession thither, that ‘Here too Sappho seems to avoid bawdry but is not averse from rather elementary jokes’. (shrink)

I do not mean to suggest that Kroner's book is not in many places interesting and learned, nor that, in its original form of lectures, it had no value. But, apart from the exaggeration and distortion of the central thesis, the detailed treatment of historical points leaves one with little confidence and robs the work of what usefulness it might have had. Thus an unquestioning application of Nietzche's division of Greek thinkers into 'Dionysiac' and 'Apollonian' leads to remarks like the (...) following: "Aristotle has little in common with the Dionysian romanticism and universal dynamism of Heraclitus, and yet there is a kinship between them based upon becoming instead of being". What evidence we have for the Presocratic period is harshly treated. On p. 85 this is the 'more literal' of two versions of Anaximander's fragment and its introduction: "All things are going back through destruction, whence they had come through generation, according to what is due; for they suffer just punishment by repayment to each other the wrong in the succession of time"--but Anaximander did not, in fact, write nonsense like this. Even a simple sentence like Heraclitus fr. 113 is mistranslated as "Thinking is the same for all," where the Greek is ξυνόν and not τὸ αὐτό. Nor is Kroner incapable of rebuking others for mistakes of his own; thus on p. 110 he writes: "J. Burnet, e.g., waters down the words of Parmenides which literally rendered are: 'The same is to know and that on behalf of which thought is,' by letting Parmenides say: 'You cannot find thought without something that is as to which it is uttered.'" But Burnet was translating not the line translated by Kroner, but the following one, a line ignored by Kroner and one which seriously damages his interpretation of Parmenides. Then the Greek word ἰδέαι, used of Plato's Forms, is implied to connote ideas existing in the mind; Socrates is the most worth-while of Greek thinkers because in some respects he resembled Jesus Christ; he was not really an ethical thinker, though, and in any case Plato's Forms owed nothing to him--and so on. The best treatment is of Aristotle; and there are many short sections of acute discussion, as, for example, on the meaning of the second part of the Parmenides. But the mind may be spinning so wildly by the time it reaches them that it is incapable of recognizing them. Cambridge University. (shrink)

During the excavations of 1924–5 at Karanis a papyrus of the second or early third century A.D. was discovered, and subsequently published by J. G. Winter, which under its single column has a subscribed title which should almost certainly be restored as ‘Alcidamas, On Homer’. The first fourteen lines of the papyrus give most of the story of Homer's death and the riddle that caused it, which is common to all the extant Lives of Homer; the remainder is a general (...) eulogy of Homer and a profession of transmitting his works to posterity. The interest of the discovery lies in the knowledge that it gives of a hitherto unrecorded work by Alcidamas, the rhetorician and contemporary of Isocrates, and the new fuel that it provides for an old controversy about the origins of the work known as the Certamen. The first part of this article aims at both re-examining the value of the papyrus and reopening some of the old questions on the Certamen. (shrink)

One of the curious things about Homeric studies is the way in which, although opinions in this field fluctuate violently, from time to time certain among them tend to become crystallized for no particular reason and are then accepted as something approaching orthodoxy. It is to try to delay such a crystallization, if it is not already too late, that I direct this brief coup d'ail at some current opinions on whether Homer—for the sake of clarity I apply this name (...) in the first instance to the monumental composer of the Iliad—used the aid of writing, and in general at the value of comparative inferences based on the heroic poetry of modern Yugoslavia. (shrink)

Among the entities that can be mentally or linguistically represented are mental and linguistic representations themselves. That is, we can think and talk about speech and thought. This phenomenon is known as metarepresentation. An example is "Authors believe that people read books." -/- In this book François Recanati discusses the structure of metarepresentation from a variety of perspectives. According to him, metarepresentations have a dual structure: their content includes the content of the object-representation (people reading books) as well as the (...) "meta" part (the authors' belief). Rejecting the view that the object representation is mentioned rather than used, Recanati claims that since metarepresentations carry the content of the object representation, they must be about whatever the object representation is about. Metarepresentations are fundamentally transparent because they work by simulating the representation they are about. -/- Topics covered in this wide-ranging work include the analysis of belief reports and talk about fiction, world shifting, opacity and substitutivity, quotation, the relation between direct and indirect discourse, context shifting, semantic pretense, and deference in language and thought. (shrink)

In my comments, I address two issues that are important but not central to the paper under review here. First, I present a reading of the postphenomenological concept of multistability by going back to Merleau-Ponty’s notion of the primacy of perception. I conclude that assertions affirming the multistability of technologies should not be seen as merely empirical. Second, I address the adequacy of using the language of ‘empirical’ and ‘transcendental’ as a means to categorize exclusionary approaches in philosophy of technology.

The Axiology of Theism The existential question about God asks whether God exists, but the axiology of theism addresses the question of what value-impact, if any, God’s existence does have on our world and its inhabitants. There are two prominent answers to the axiological question about God. Pro-theism is the view that God’s … Continue reading The Axiology of Theism →.

This article breaks fresh ground on the probabilistic problem of evil, contesting its first premise (probably, if God exists, gratuitous evil does not exist) instead of the commonly contested second premise (probably, gratuitous evil exists). In so doing, it presents a rehabilitated version of Leibniz’s argument for the irrelevance of gratuitous evil vis-à-vis the existence of God, according to which it is logically impossible for any world God might create to be devoid of pointless evil. Accordingly, my argument provides theists (...) a more fruitful strategy for dealing with evil than asking skeptics to deny their intuitive recognition of pointless suffering. (shrink)