Etude histologique de la régénération pharyngienne de Syllis gracilis Grube (Annélide, Polychète)

1974 ◽  
Vol 52 (1) ◽  
pp. 169-177 ◽  
Author(s):  
B. Boilly ◽  
N. Thibaut

During anterior regeneration of Syllis gracilis Grube (Annelida, Polychaeta), the pharynx (pharyngeal sheath, proboscis, proventricle, and ventricle) completely regenerates. Most of the regenerated pharynx (pharyngeal sheath, proboscis, and proventricle) proceeds from direct transformation of the stomodeal invagination. On the other hand, the ventricle seems to come from both the posterior end of the regenerated proventricle (anterior part of the ventricle) and the intestine of the stump (posterior part of the ventricle corresponding to the ventricular coeca).Tile differentiation of the pharynx is precocious and mainly appears in a particular disposition, and a typical evolution of the cells of the mesodermal sheath surrounding the stomodeal invagination. Starting from the 11th day after amputation, the proventricle differs from the presumptive proboscis by a thick mesodermal sheath which forms the radial muscle cells, the transverse diaphragms, and the peritoneal epithelium. On the other hand, the differentiation of the ventricle comes later (17th day after the section was done).

It was hardly to be expected but that an attempt to demonstrate the inconveniences arising from daily increasing competition in the business of life assurance should meet with resistance and reprobation. The large number of persons interested in novel undertakings of the character in question would naturally feel themselves aggrieved at statements which went to prove that such undertakings were mischievous because they could not be successful, and which sought to demonstrate their hopelessness of success by an expose of their actual condition; on the other hand, it is not much to be wondered at, that minds familiar only with a state of affairs so wholly different should regard with anxiety and alarm a succession of enterprises threatening not merely to encroach on their own field of operation, but, by a series of failures, to bring all alike into general suspicion and discredit. As in most other controversies, much allowance is to be made on either side. The interests of the two parties are probably not altogether antagonistic, but they can scarcely fail to come into serious collision unless placed under more carefully devised regulations than at present exist.


2011 ◽  
Vol 37 (9) ◽  
pp. 999-1010 ◽  
Author(s):  
Ignaas Devisch

French philosopher Jean-Luc Nancy is acting uneasily when it comes to contemporary politics. There is a sort of agitation in his work in relation to this question. At several places we read an appeal to deal thoroughly with this question and ‘ qu’il y a un travail à faire’, that there is still work to do. From the beginning of the 1980s with the ‘Centre de Recherches Philosophiques sur le Politique’ and the two books resulting out of that, until the many, rather short texts he published on this topic during the last years of the century, the question of politics crosses very clearly Nancy’s work. He not only fulminates against the contemporary philosophical ‘content’ with democracy. Instead of defending a political regime, he wants to think the form of politics in the most critical and sceptical way. To Nancy, the worst thing we can do in thinking contemporary politics, is taking it for granted that we know what politics is about today, given the evidence of the global democracy. So to him, we almost have to be at unease when it comes to politics. On the other hand, in thinking contemporary democracy, the work of Claude Lefort is undeniably the main reference. Long before the collapse of the Berlin Wall and the upsurge of an all-too-easy anti-Marxism, Lefort articulated in a nuanced way the formal differences between totalitarianism and democracy. According to Lefort, the specific ‘form’ of democracy is that it never becomes an accomplished and fulfilled form as such. In a certain sense, the only ‘form’ of democracy is formlessness, a form without form. In a democracy, the place of power becomes literally ‘ infigurable’ as Lefort says. Democracy stands for formlessness or the relation to a void. Nancy objects so to say against a ‘Leformal’ conception of democracy – the empty place, the formless, the ‘ infigurable’ or ‘ sans figure’, the ever yet to come. … This conception of democracy would still be caught in the infinite metaphysical, dialectical horizon of immanentism, while it pretends to have already left that horizon behind it, presenting itself as the finite alternative to the infinite totalitarian politics. Democracy as formlessness is indeed no longer based on a metaphysical Idea, Figure, or Truth. We want to clear up the philosophical sky of Nancy’s remarks by confronting them with some thoughts of Lefort.


2021 ◽  
Vol 77 (2-3) ◽  
pp. 617-642
Author(s):  
Antonio Di Chiro

In this essay we will try to analyze the thought of the philosopher Giorgio Agamben on the pandemic. The aim of the work is twofold. On the one hand, we will try to demonstrate that Agamben’s positions on the pandemic are not to be understood as mere extemporaneous statements, but as integral parts of his philosophy. On the other hand, we will try to show how these positions are based on a deeply paranoid and anti-scientific vision, since Agamben believes that the effects of the epidemic have been exaggerated by the centers of power in order to create a “state of exception” that allows to crumble social life and to use the fear of poverty as a tool to dominate society. We will try to demonstrate that it is precisely starting from the critique of Agamben’s positions that it is possible to rethink a philosophy and a politic to come and a new reorganization of social and intimate relations between human beings.


completed machine would almost certainly be less than half that of a completed machine of the same kind. How s1(3) operates has been the subject of a detailed and critical analysis by Robert Goff J in the case of BP Exploration Co Ltd v Hunt (No 2), the defendant was granted a concession to explore for oil in Libya. He did not have the physical resources to carry out the exploration himself, so he sold a half share in the concession to BP, on condition that they would bear the initial cost of exploration. Accordingly, under this arrangement, BP’s expenses at the outset were likely to be very substantial, but on the assumption that oil was discovered, that expenditure would be recouped as oil continued to come on stream. The nature of the contract was that should oil not be discovered, the risk would be borne by BP, but, on the assumption that oil was discovered, BP’s expenses would be paid for out of the defendant’s receipts. Oil was discovered in 1967, but in 1971, the Libyan Government expropriated BP’s share of the concession and, in 1973, the defendant’s share was also expropriated. Accordingly, BP had received some payment, but this went only so far as to cover two-thirds of their initial expenditure. On the other hand, since the defendant had no expenses, all moneys received by him amounted to profit once the concession had been paid for. Goff J adopted a two stage approach to s1(3), stating that it was necessary first to identify and value what benefit had been conferred on the defendant, since on the wording of s1(3), this set a ceiling on the amount which could be awarded by way of a just sum. Secondly, it was necessary to award a just sum, taking account of the value of the benefit conferred and the cost to the performer of the work he had done prior to the frustrating event. For these purposes, the benefit to the defendant will be assessed by reference to the end product of the service provided by the other party: BP Exploration Co Ltd v Hunt (No 2) [1979] 1 WLR 783, p 799

1995 ◽  
pp. 388-392

2016 ◽  
Vol 7 (2) ◽  
pp. 341-360 ◽  
Author(s):  
Thomas Burri

The autonomy robots enjoy is understood in different ways. On the one hand, a technical understanding of autonomy is firmly anchored in the present and concerned with what can be achieved now by means of code and programming; on the other hand, a philosophical understanding of robot autonomy looks into the future and tries to anticipate how robots will evolve in the years to come. The two understandings are at odds at times, occasionally they even clash. However, not one of them is necessarily truer than the other. Each is driven by certain real-life factors; each rests on its own justification. This article discusses these two “views of robot autonomy” in depth and witnesses them at work at two of the most relevant events of robotics in recent times, namely the Darpa Robotics Challenge, which took place in California in June 2015, and the ongoing process to address lethal autonomous weapons in humanitarian Geneva, which is spurred on by a “Campaign to Stop Killer Robots”.


2015 ◽  
Vol 65 (2) ◽  
pp. 673-681
Author(s):  
A.J. Woodman

Fraenkel dismissed Epode 11 with the statement that it ‘is an elegant piece of writing, but there is little real life in it’. By this ambiguously expressed comment he did not mean that the poem fails to ‘come alive’, but that it is artificial: he saw the poem as little more than an assembly of themes and motifs which recur in other genres, especially epigram and elegy. This has also been the perspective of some other twentieth-century scholars: Georg Luck's self-styled ‘interpretation’ of the poem consists largely of a numbered list of thirteen motifs which the epode has in common with elegy and which in Luck's opinion were derived by Horace from Gallus. Alessandro Barchiesi, on the other hand, capitalizes on the perceived elegiac motifs in order to see the poem as a dynamic fusion of elegy and iambus. As for commentators, although older representatives seem to have regarded Epode 11 as generally self-explanatory, the poem receives increasing attention from Cavarzere, Mankin and Watson, the last of whom originally discussed some of its problems in a paper published twenty years earlier. Yet various problems still remain, and in this paper I propose to re-examine lines 1–6 and 15–18 in the hope that a clearer view of the epode as a whole may emerge.


1912 ◽  
Vol 5 (3) ◽  
pp. 322-348
Author(s):  
Benjamin Wisner Bacon

In its effort to determine the historic sense of the New Testament records, and thus to understand them genetically, modern criticism has developed no instrument more effective than the method of comparison. In former days the aim was harmonization, because the interpreter started with the assumption of a mechanical agreement among the witnesses. Today the aim is distinction, because mechanical coincidence is neither assumed nor desired. On the contrary the broader the contrast in point of view, the surer the ultimate inference. Stars so remote that they give no parallax, their rays seeming to come at precisely the same angle no matter from what point of the earth's orbit the observer takes his measurements, afford small hope of determining their real position. There must be difference of angle when the earth has swung round half its orbit, or there is no basis for measurement. Fortunately for the problem of the historical Jesus, the rays which come to us from him do not travel along precisely parallel lines. On the other hand the problem is enormously complicated by the process of mixture; for the testimony of one witness has visibly affected that of another, detracting from its independent value.


Author(s):  
Sandeep Krishnamurthy

Even though Amazon.com has received most of the initial hype and publicity surrounding e-commerce, eBay has quietly built an innovative business truly suited to the Internet. Initially, Amazon sought to merely replicate a catalog business model online. Its technology may have been innovative- but its business model was not. On the other hand, eBay recognized the unique nature of the Internet and enabled both buying and selling online with spectacular results. Its auction format was a winner. eBay also clearly demonstrated that profits do not have to come in the way of growth—an argument that Bezos never tired of making. Amazon was initially focused on BN.com as a competitor. Over time, Amazon came to recognize eBay as the competitor. Its initial foray into auctions was a spectacular failure. Now, Amazon is trying to compete with eBay by facilitating selling and strengthening its affiliates program.


2019 ◽  
pp. 172-193
Author(s):  
Cati Coe

Both care workers and patients are concerned about the reciprocities of the relationship between them. From the patients’ side, the reciprocities are framed as issues of money: are they getting sufficient work and respect from their employees, in exchange for the life savings they are spending? Are they subject to theft by the strangers they are allowing into their homes? Patients expect to buy care and respect as consumers. Care workers, on the other hand, attend to respect and appreciation—whether in the form of redistribution or in the form of interpersonal recognition. Furthermore, some see themselves as doing God’s work, spreading love and encouragement by caring for someone, rather than giving their labor in exchange for money. As such, they do not expect reciprocity to come immediately and from their patients, but on God’s time, in their hour of need.


Author(s):  
John E. Johnson

As forensic experts, we can come up with many reasons why or how a given event happened or didnt happen. Good reasons are sometimes used when they seem reasonable and support the hypothesis of the expert. However, they may lead to erroneous conclusions if insufficient investigation has been done. Real reasons, on the other hand, may be far more difficult to come up with and may require much more detailed investigation and, sometimes, may completely change previously held viewpoints or opinions. It is our responsibility as forensic engineers to always seek out the real reasons in providing unbiased opinions.


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