This article deals with the control of chaos on the convective motion in a ferrofluid filled in a rotating porous medium and under the helical force effect. We performed a truncated expansion of Galerkin and found the Lorenz-type model which described the system. The dynamical system is characterized using appropriate and subsequent criteria. We noticed that the system presents regular and chaotic behaviors according to the parameters at present. A considerable reduction of the chaotic domain is noticed with the increase (...) of the intensity of the helical force and of the Darcy number, thus making it possible to delay the heat transfer in the system. The increase in the viscosity ratio and the Taylor number widen the chaotic domain leading to an acceleration of the heat transfer in the system. (shrink)

The Journal of Mind and Behavior, Winter 2003, Volume 24, Number 1, Pages 91–118, ISSN 0271–0137 This paper focuses on a logical systems flow-down of a set of consciousness requirements, which together with biological quantification of human brain anatomy sets limits on the neurological network in the cerebrum in order to produce the mind. It employs data to validate inferences, or when data do not exist, proposes methods for acquiring valid evidence. Many of these systems requirements will be imposed after (...) some fundamental assumptions are made. These assumptions are not new to theories on consciousness. However, their application as fundamentals may actually represent a new approach. Concurrent with these fundamentals, explicit periods of awareness while conscious are employed. Justification for their use is found in a theoretical process described as cerebral fusion. Additionally, storage of memory elements is postulated within local glia sites, proximal to synaptic nodes, and conductive transport through the astrocytes responsible for recall of data. The model permits variations in neural–glial interface physics and allows forecasts of mind/brain dysfunctions to be inferred. One key result from the model is hypothesized and expanded upon, and may have impact in certain types of dementia, such as Alzheimer’s disease. (shrink)

Sont publiees dans ce volume les communications prononcees lors des Journees Henri Joly, les 25, 26 et 27 mars 1993 a Grenoble. On y trouvera ces reflexions que peut, aujourd'hui encore, susciter en nous l'Antiquite classique. Sur la jalousie ou l'existence de mondes multiples; mais egalement sur la guerre civile ou les consequences politiques du mepris des frontieres naturelles. Ce ne sont la qu'exemples parmi d'autres. Fideles a la curiosite philosophique d'Henri Joly, dont les travaux igonraient les barrieres disciplinaires, elles (...) debordent donc largement le champ etriot de l'histoire de la philosophie pour englober une reflexion sur la langue et la litterature grecques, l'historiographie et l'anthropologie. (shrink)

Concussion is a common, serious injury in youth ice hockey, affecting up to 25% of players per season by one estimate. • Bodychecking is a major cause of injury and concussion in hockey, yet some Canadian provinces allow players as young as nine years to engage in bodychecking. • Reducing rates of concussion requires eliminating bodychecking for all except elite hockey players aged 16 years and older, as per the recommendations of the Canadian Academy of Sports and Exercise Medicine.

In the controversy over the date of Corinna, the following points may be taken as agreed: 1. An edition was made in Boeotia about the end of the third or beginning of the second century B.C. 2. The texts of Corinna current in the late Hellenistic and Roman periods were all descended from that Boeotian edition. 3. Before its dissemination, Corinna was unknown in Greece at large. If she wrote at an earlier period, she must have been remembered only locally. (...) The difference between Boeotian spelling of the fifth century and that of the fourth is very great: but the difference in this respect between the mid-fourth century and the late third or early second is comparatively slight. It is therefore tenable that whereas there would be a good reason for the re-spelling of fifth-century Boeotian into the later convention of any period, there would be no obvious or adequate reason for re-spelling Boeotian of the fourth century into the orthography of the third, or that of the third into that of the second. Even those features of fourth-century spelling which have ceased to preponderate are by no means unknown or even uncommon at the end of the third century. (shrink)

It is universally recognized that the Hymn to Ares stands apart from all the other poems in the Homeric collection, and that it was composed centuries later than any of those that can be assigned to a particular period with any degree of confidence. Many older scholars classed it or even printed it with the Orphic Hymns, which are transmitted together with the Homeric Hymns as well as with the hymns of Callimachus and Proclus. But the similarity with the Orphic (...) Hymns is only superficial. It merely consists in the stylistic feature of accumulated epithets, a common characteristic of late hymns. There are three reasons for not lumping the Hymn to Ares with the very homogeneous Orphic series. First, the Orphic Hymns are courteous invocations of different gods to come to a ceremony described as τєλєτή or τєλєτταί, while the Hymn to Ares is an intensely personal prayer for the poet's own soul. Secondly, the Orphic collection already contains a hymn to Ares, and duplications are avoided. Thirdly, in the Homeric hymn Ares is addressed as a planetary god. In the Orphic hymn to Ares, this aspect is totally absent, and the same is true of the hymns to Hermes, Aphrodite, Zeus, and Kronos. (shrink)

A weak form of intuitionistic set theory WST lacking the axiom of extensionality is introduced. While WST is too weak to support the derivation of the law of excluded middle from the axiom of choice, we show that beefing up WST with moderate extensionality principles or quotient sets enables the derivation to go through.

Synaesthesia is a condition in which one type of stimulation evokes the sensation of another, as when the hearing of a sound produces photisms, i.e. mental percepts of colours. R is a 20 year old colour blind subject who, in addition to the relatively common grapheme-colour synaesthesia, presents a rarely reported cross modal perception in which a variety of visual stimuli elicit aura-like percepts of colour. In R, photisms seem to be closely related to the affective valence of stimuli and (...) typically bring out a consistent pattern of emotional responses. The present case study suggests that colours might be an intrinsic category of the human brain. We developed an empirical methodology that allowed us to study the subject's otherwise inaccessible phenomenological experience. First, we found that R shows a Stroop effect (delayed response due to interference) elicited by photisms despite the fact that he does not show a regular Stroop with real colours. Secondly, by manipulating the colour context we confirmed that colours can alter R's emotional evaluation of the stimuli. Furthermore, we demonstrated that R's auras may actually lead to a partially inverted emotional spectrum where certain stimuli bring out emotional reactions opposite to the normal ones. These findings can only be accounted for by considering R's subjective colour experience or qualia. Therefore the present paper defends the view that qualia are a useful scientific concept that can be approached and studied by experimental methods. (shrink)

Aeschylus, according to a famous report, described his tragedies as ‘cuts from Homer's great banquets’. The anecdote has the ring of truth, particularly as ‘Homer’ here must include the Epic Cycle, which would hardly have been possible after the fifth century; and there is an obvious source from which Athenaeus might have taken the story, the ’Eπιδημαι of Ion of Chios, which he cites in three other places. This work had the character of a personal memoir describing notable Athenian statesmen, (...) poets, and philosophers whom Ion had known. The emphasis was on their personalities as revealed in their public speeches and private conversation. One of Athenaeus’ quotations from it is about Sophocles, and we know from other evidence that as a young man Ion had met Aeschylus too. The anecdote would have been perfectly in place in such a book. (shrink)

These notes are intended as a critical supplement to my edition of the play, the scale and style of which are not such as to allow extended discussion of textual questions. In some cases I have been able to offer new solutions that did not seem to need more than a brief note by way of explanation, or none at all, and these I shall not discuss further here.

The work with which I am concerned is not the one that appears under the name of Tryphon in Rhetores Graeci, viii. 726–60 Walz, iii. 191–206 Spengel, but the one that appears under the name of Gregory of Corinth, viii. 761–78 W. and iii. 215–26 Sp. What I now offer amounts to a makeshift edition. I call it makeshift, because I have not sought out and assessed all existing manuscripts of the work, or versed myself in Greek grammatical writing to (...) the extent that a serious editor would have to do; I offer it because, whatever its deficiencies, it represents a more complete and a recensionally better founded text than those of the three existing editions, the most recent of which is now 109 years old. (shrink)

It is generally accepted that the Homeric Hymn to Apollo was not conceived as a single poem but is a combination of two: a Delian hymn, D, performed at Delos and concerned with the god's birth there, and a Pythian hymn, P, concerned with his arrival and establishment at Delphi. What above all compels us to make a dichotomy is not the change of scene in itself, but the way D ends. The poet returns from the past to the present, (...) and takes leave of his audience; farewell, he says, and remember me ever after. He is quite clearly finishing. Whereupon there is an abrupt and unsatisfactory transition to P. (shrink)

Histories of literature tend to treat Stesichorus as just one of the lyric poets, like Alcman or Anacreon. But the vast scale of his compositions puts him in a category of his own. It has always been known that his Oresteia was divided into more than one book; P. Oxy, 2360 gave us fragments of a narrative about Telemachus of a nearly Homeric amplitude; and from P. Oxy. 2617 it was learned that the Geryoneis contained at least 1,300 verses, the (...) total being perhaps closer to two thousand. Even allowing for the shorter lines, this was as long as many an epic poem. Indeed, these were epic poems, in subject and style as well as in length: epics to be sung instead of recited. What was behind them ? Who was this Stesichorus, and how did he come to be, in Quintilian's phrase, ‘sustaining on the lyre the weight of epic song’ ? The biographical problem must be tackled first. The question of Stesichorus’ historical setting and date is confused by legendary elements as well as by contradiction in the sources. On the whole scholars remain spellbound by the specious precision of the Suda's dates , although it has long been realized that they are founded on nothing but the assumption that Stesichorus was younger than Alcman and older than Simonides. There have been excellent discussions by Wilamowitz and Maas, but they seem to have had little influence. (shrink)

Mishel Fuco not only influenced the consciousness of modern West, but changed the modus of thinking, the way of perception of many traditional notions, transformed the opinions about the reality, history, person. Philosopher’s principle research programme which attaches the entirety to his works is “archeology of knowledge” programme, the search of human knowledge’s original layers. Let us mark that all Fuco’s works in 1960s are devoted to main aim: to clear up the conditions of historical origin of different mental aims (...) and social institutions in the culture of the Modern Time. Though in the whole this common aim remained for Fuco invariable, but the level on which he realizes his research search is changing constantly and rather logically. Relations of power, and to be more exact,accumulations of power and knowledge, social and cognitive which define all the aggregate of specific possibilities of culture in each given historical period. More than that the philosopher offers the particular prospects of sight of modern society and precisely totality of power relations, its ubiquitous nature and specific productivity which produces itself in each moment in any point or rather in any attitude from one point to another. From Fuco’s point of view the power is everywhere and not because it involves everything but because it comes from everywhere. The power is productive in that degree in which it is not associated with one definite imperious instance but pierces all kinds of activity in society, putting on its indelible stamp, developing under definite angle and due to this factit causes products, produced by them. The power induces and at the same time determines the fact which appears as a result of its inducement. The thirst of supremacy, which surrounds the individual and is focused on it as on the center of its use of force, comes out as a defining sign. It should be noticed that Fuco’s conception of power is not reduced to the understanding it as anonymous impersonal net of relations, piercing all society. It is supplemented by power treatment,coming out in “designed” look of definite imperious structure or imperious institute. (shrink)

Although activated spinal cord glia contribute importantly to neuropathic pain, how nerve injury activates glia remains controversial. It has recently been proposed, on the basis of genetic approaches, that toll-like receptor 4 may be a key receptor for initiating microglial activation following L5 spinal nerve injury. The present studies extend this idea pharmacologically by showing that TLR4 is key for maintaining neuropathic pain following sciatic nerve chronic constriction injury. Established neuropathic pain was reversed by intrathecally delivered TLR4 receptor antagonists derived (...) from lipopolysaccharide. Additionally, -naltrexone, -naloxone, and -naloxone, which we show here to be TLR4 antagonists in vitro on both stably transfected HEK293-TLR4 and microglial cell lines, suppressed neuropathic pain with complete reversal upon chronic infusion. Immunohistochemical analyses of spinal cords following chronic infusion revealed suppression of CCI-induced microglial activation by -naloxone and -naloxone, paralleling reversal of neuropathic pain. Together, these CCI data support the conclusion that neuron-to-glia signaling through TLR4 is important not only for initiating neuropathic pain, as suggested previously, but also for maintaining established neuropathic pain. Furthermore, these studies suggest that the novel TLR4 antagonists -naloxone and -naloxone can each fully reverse established neuropathic pain upon multi-day administration. This finding with -naloxone is of potential clinical relevance. This is because -naloxone is an antagonist that is inactive at the -opioid selective receptors on neurons that produce analgesia. Thus, these data suggest that -opioid antagonists such as -naloxone may be useful clinically to suppress glial activation, yet -opioid agonists suppress pain. (shrink)

A Papyrus commentary on Alcman published in 19571 brings us news of a poem in which Alcman “physiologized”. The lemmata and commentary together witness to a semi-philosophical cosmogony unlike any other hitherto known from Greece. The evidence is meagre, but it seems worth while to see what can be made of it; for it is perhaps possible to go a little farther than has so far been done.

This anthology has contributions about the role of legal perspectives in many countries of the South.