The avocado (Persea americana) is a major crop commodity worldwide. Moreover, avocado, a paleopolyploid, is an evolutionary “outpost” among flowering plants, representing a basal lineage (the magnoliid clade) near the origin of the flowering plants themselves. Following centuries of selective breeding, avocado germplasm has been characterized at the level of microsatellite and RFLP markers. Nonetheless, little is known beyond these general diversity estimates, and much work remains to be done to develop avocado as a major subtropical‐zone crop. Among the goals (...) of avocado improvement are to develop varieties with fruit that will “store” better on the tree, show uniform ripening and have better post‐harvest storage. Avocado transcriptome sequencing, genome mapping and partial genomic sequencing will represent a major step toward the goal of sequencing the entire avocado genome, which is expected to aid in improving avocado varieties and production, as well as understanding the evolution of flowers from non‐flowering seed plants (gymnosperms). Additionally, continued evolutionary and other comparative studies of flower and fruit development in different avocado strains can be accomplished at the gene expression level, including in comparison with avocado relatives, and these should provide important insights into the genetic regulation of fruit development in basal angiosperms. BioEssays 30:386–396, 2008. © 2008 Wiley Periodicals, Inc. (shrink)

Reviews evidence which suggests that there may be little or no direct introspective access to higher order cognitive processes. Ss are sometimes unaware of the existence of a stimulus that importantly influenced a response, unaware of the existence of the response, and unaware that the stimulus has affected the response. It is proposed that when people attempt to report on their cognitive processes, that is, on the processes mediating the effects of a stimulus on a response, they do not do (...) so on the basis of any true introspection. Instead, their reports are based on a priori, implicit causal theories, or judgments about the extent to which a particular stimulus is a plausible cause of a given response. This suggests that though people may not be able to observe directly their cognitive processes, they will sometimes be able to report accurately about them. Accurate reports will occur when influential stimuli are salient and are plausible causes of the responses they produce, and will not occur when stimuli are not salient or are not plausible causes. (shrink)

A few years ago I ran across a statement by Jean-Paul Sartre which seemed to imply that if there is a God, then there can be no human freedom. That thesis struck me as questionable, but at the time I did not pause to examine it. More recently I ran across a similar, more explicit statement by Kurt Baier, and I decided the time to pause had come. My knee-jerk response to Baier – and I confess it was probably nothing (...) more – was, ‘Why can't there be human freedom if there is a God? Indeed, can there be human freedom if there isn't a God ?’ The second of these questions has proved to be the more provocative to me, for the more I have thought about it, the more it has seemed to me that it is the atheist and not the theist who should be on the defensive about libertarianism, i.e. the position that human beings do act, that human actions are not determined, that we are the sole cause of our actions, and that all things remaining the same, we could have done otherwise. Indeed, the more I thought about that question – Can there be human freedom if there is no God? – the more convinced I became that the atheist has no good reason for believing in libertarianism. Note: I am not saying that atheism is logically incompatible with libertarianism. Perhaps it is, but if it is, that is not yet obvious to me. Rather, I am saying that an atheist who believes in libertarianism must believe in it on the basis of faith and must hold this faith in opposition to the only type of evidence that is available to him. Hence, by denying the existence of God, Baier and Sartre do not make room for human freedom; they make belief in human freedom irrational. By contrast, I shall argue, the theist does have a good reason for believing that humans are free. Let's take separate looks at Baier and Sartre; then I shall summarize the substance of my position. (shrink)

Articles: Smart, "Quine's Philosophy of science"; Harman, "An Introduction to 'Translation and Meaning', Chapter Two of Word and Object"; Stenius, "Beginning with Ordinary Things"; Chomsky, "Quine's Empirical Assumptions"; Hintikka, "Behavioral Criteria of Radical Translation"; Stroud, "Conventionalism and the Indeterminacy of Translation"; Strawson, "Singular Terms and Predication"; Grice, "Vacuous Names"; Geach, "Quine's Syntactical Insights"; Davidson, "On Saying That"; Follesdal, "Quine on Modality"; Sellars, "Some Problems about Belief"; Kaplan, "Quantifying In"; Berry, "Logic with Platonism"; Jensen, "On the Consistency of a Slight (?) (...) Modification in Quine's New Foundations"; Quine, "Replies"; Publications of W. V. Quine. (shrink)

As its subtitle 'Skepticism, Individuality and Chastened Politics' indicates, this book is an exploration of and a largely favorable engagement with salient elements in the thinking of a theorist who is widely regarded as the greatest Anglophone political thinker and among the top rank of philosophical writers generally. In emphazing Hobbes's skepticism, Richard Flathman goes against the grain of much of the literature concerning Hobbes. The theme of individuality is more familiar, particularly from the celebrated writings on Hobbes by (...) Michael Oakeshott, but the idea of a chastened politics challenges the widely influential view that Hobbes was not only an authoritarian but an incipient or proto-totalitarian. (shrink)

Political argument and institutions in the UnitedKingdom have frequently been represented as the products of ablend of nationalistic conservatism, liberal individualism andsocialism, in which consensus has been prized over ideology. This situation changed, as the standard story has it, with therise of Thatcherism in the late 1970s, and again with the arrivalof Tony Blair's ``New Labour'' pragmatism in the late 1990s. Solidarity as an element of political discourse makes itsappearance in the UK late in the day. It has been most (...) stronglylinked to the Third Way debate, as framed most influentially inthe work of Prof. Anthony Giddens.In this paper we review the history and pre-history of the debateon solidarity in the UK, focussing mostly on its implications forwelfare state reform. In particular we discuss the proposals forthe long-term care of the Elderly issued by the Royal Commissionon long-term care in 1999. In this context we critically examinethe idea that solidarity is a new concept in British politicalculture, and that it is a concept which has real political ``bite''in the project of welfare reform. We examine this through aconsideration of Giddens's attempted synthesis of politicalargument and social theory. (shrink)

On autobiographical memory tests (AMTs) using positive and negative cue words, research has consistently found that depressed individuals (relative to nondepressed controls) are more likely to recall overgeneral memories (OGMs) and are less likely to recall specific memories. A total of 56 undergraduates who scored high or low on a measure of depression were shown positive and negative word cues and event cues in a computerised AMT. Dysphoric college students made significantly fewer specific and more categoric (overgeneral) responses than controls, (...) but did not differ from controls in terms of extended responses. Results suggest that the difference in memory specificity between low and high dysphoric students generalises across word and event cues and that a computerised version of the AMT can be used as an alternative to interviews as a form of administration. (shrink)

This chapter contains sections titled: Intellectual Biography Influences Art and Aesthetics Professional Neglect.

A long-standing challenge to evolutionary theory has been whether it can explain the origin of complex organismal features. We examined this issue using digital organisms—computer programs that self-replicate, mutate, compete and evolve. Populations of digital organisms often evolved the ability to perform complex logic functions requiring the coordinated execution of many genomic instructions. Complex functions evolved by building on simpler functions that had evolved earlier, provided that these were also selectively favoured. However, no particular intermediate stage was essential for evolving (...) complex functions. The first genotypes able to perform complex functions differed from their non-performing parents by only one or two mutations, but differed from the ancestor by many mutations that were also crucial to the new functions. In some cases, mutations that were deleterious when they appeared served as stepping-stones in the evolution of complex features. These findings show how complex functions can originate by random mutation and natural selection. (shrink)

Can any of us ever really be free? Do we follow the rules our society gives us because we want to, or because we are forced to? Discipline, Freedom, Resistance challenges the received wisdom that discipline and freedom are opposite and mutually exclusive. Though it is typically argued that a well-ordered liberal society must discipline its more unruly citizens to maintain freedom for all, Flathman shows how resistance to rules can mean more than criminals breaking laws. Resistance can also mean (...) political protest and political dialogues about what the rules can be. Discipline, Freedom, Resistance draws on Foucault's theories of the self to describe the inner discipline it takes to resist authority-declaring that individuals must sometimes resist forces that wish to destroy freedom, to ensure freedom. (shrink)

BRENTANO'S APPROPRIATION OF THE Scholastic notion of intentionality, and of what Brentano called "the intentional (or mental) inexistence of an object," was early on exploited in a reading of Kant's theory of objects and appearances. Apparently the first systematic attempt was undertaken by Hans Vaihinger. However, Vaihinger's is radically different from more recent intentionalist readings of Kant. Albeit not in every respect, I propose that a return to this aspect of Vaihinger's approach supports a rewarding advance on such readings. After (...) a general introduction, I survey three instances of the latter—Prauss, Pereboom, and Sellars—in section 2 (and comment on some others in notes throughout). In sections 3 and 4, I then turn to Vaihinger's approach. (shrink)

Much has been made of the centrality of comparison to sociological research. The world-systems perspective, however, posits a single unit of analysis that challenges the possibility of designating the independent cases demanded by the formal logic of comparative analysis. The present work suggests an alternative to comparisons of multiple cases in the form of analogies among instances of processes. The consequences of such a methodological shift are explored through the example of the contemporary “War on Terror”.

The fitness of any evolutionary unit can be understood in terms of its two basic components: fecundity (reproduction) and viability (survival). Trade-offs between these fitness components drive the evolution of life-history traits in extant multicellular organisms. We argue that these trade-offs gain special significance during the transition from unicellular to multicellular life. In particular, the evolution of germ–soma specialization and the emergence of individuality at the cell group (or organism) level are also consequences of trade-offs between the two basic fitness (...) components, or so we argue using a multilevel selection approach. During the origin of multicellularity, we study how the group trade-offs between viability and fecundity are initially determined by the cell level trade-offs, but as the transition proceeds, the fitness trade-offs at the group level depart from those at the cell level. We predict that these trade-offs begin with concave curvature in single-celled organisms but become increasingly convex as group size increases in multicellular organisms. We argue that the increasingly convex curvature of the trade-off function is driven by the cost of reproduction which increases as group size increases. We consider aspects of the biology of the volvocine green algae – which contain both unicellular and multicellular members – to illustrate the principles and conclusions discussed. (shrink)