Regulated transport of the plant hormone auxin is central to many aspects of plant development. Directional transport, mediated by membrane transporters, produces patterns of auxin distribution in tissues that trigger developmental processes, such as vascular patterning or leaf formation. Experimentation has produced many, largely qualitative, data providing strong evidence for multiple feedback systems between auxin and its transport. However, the exact mechanisms concerned remain elusive and the experiments required to evaluate alternative hypotheses are challenging. Because of this, computational modelling now (...) plays an important role in auxin transport research. Here we review some current approaches and underlying assumptions of computational auxin transport models. We focus on self‐organising models for polar auxin transport and on recent attempts to unify conflicting mechanistic explanations. In addition, we discuss in general how these computer simulations are proving to be increasingly effective in hypothesis generation and testing, and how simulation can be used to direct future experiments.Editor's suggested further reading in BioEssays Local auxin production: a small contribution to a big field Abstract. (shrink)

Overview The evolution of multicellularity raises questions regarding genomic and developmental commonalities and discordances, selective advantages and disadvantages, physical determinants of development, and the origins of morphological novelties. It also represents a change in the definition of individuality, because a new organism emerges from interactions among single cells. This volume considers these and other questions, with contributions that explore the origins and consequences of the evolution of multicellularity, addressing a range of topics, organisms, and experimental protocols. Each section focuses on (...) selected topics or particular lineages that present a significant insight or challenge. The contributors consider the fossil record of the paleontological circumstances in which animal multicellularity evolved; cooptation, recurrent patterns, modularity, and plausible pathways for multicellular evolution in plants; theoretical approaches to the amoebozoa and fungi (cellular slime molds having long provided a robust model system for exploring the evolution of multicellularity), plants, and animals; genomic toolkits of metazoan multicellularity; and philosophical aspects of the meaning of individuality in light of multicellular evolution. Contributors Maja Adamska, Argyris Arnellos, Juan A. Arias, Eugenio Azpeitia, Mariana Benítez, Adriano Bonforti, John Tyler Bonner, Peter L. Conlin, A. Keith Dunker, Salva Duran-Nebreda, Ana E. Escalante, Valeria Hernández-Hernández, Kunihiko Kaneko, Andrew H. Knoll, Stephan G. König, Daniel J. G. Lahr, Ottoline Leyser, Alan C. Love, Raul Montañez, Emilio Mora van Cauwelaert, Alvaro Moreno, Vidyanand Nanjundiah, Aurora M. Nedelcu, Stuart A. Newman, Karl J. Niklas, William C. Ratcliff, Iñaki Ruiz-Trillo, Ricard Solé . (shrink)

La rapidité d'appropriation, par les utilisateurs, des évolutions technologiques des TIC, la mouvance des usages et l'internationalisation des réseaux entravent la volonté des Etats et des acteurs de faire obstacle aux atteintes aux données personnelles et sensibles des individus et des organisations. A fortiori, l'arrivée dans le monde virtuel des réseaux sociaux, la mondialisation des moteurs de recherche et des services d'infogérance constituent de nouvelles formes de risques d'atteintes aux données personnelles ou sensibles des personnes et des organisations. De ce (...) fait, les utilisateurs des TIC se trouvent confrontés soit à une régulation et une réglementation existantes mais inaptes à les protéger, soit face à un vide juridique propice à toutes les dérives. La sensibilisation des citoyens à la vigilance, le renforcement des législations nationales, la mise en place d'une gouvernance internationale sur un « socle minimal de protection des données » , tels apparaissent les trois piliers d'une éthique à construire.The speed with which users have appropriated technological developments in the ICTs, the shifting trends in their use and the globalisation of networks are all working against the will of States and other agencies to prevent the misuse of personal and sensitive data belonging to individuals and organisations. The advent of social networking in the virtual world and the globalisation of Web search engines and outsourcing services have introduced new kinds of risks to such personal or sensitive data. ICT users are therefore either confronted with existing rules and regulations that do not offer adequate protection, or with a legal vacuum that encourages abuses of every kind. Strengthening citizens awareness, reinforcing national laws and international governance based on a core system of data protection , should be the foundations of the data use ethic we need to build up. (shrink)

In lieu of an abstract, here is a brief excerpt of the content.

Nineteen eleven was a tumultuous year for Bertrand Russell, both personally and academically. The intense scholarly activity of 1911 that resulted in an impressive set of diverse academic publications and manuscripts was accompanied by a number of personal entanglements that were equally intense for Russell. Two of these relationships would prove to be especially strained. Late Wednesday afternoon, 18 October 1911, Russell met Ludwig Wittgenstein for the first time. As we know from the numerous accounts available on their relationship, the (...) exchanges between Russell and Wittgenstein were emotionally charged and not always cordial. However, in 1911 a second relationship flourished that would prove equally significant for Russell. The aristocratic English philosopher fell in love with Lady Ottoline Morrell. This relationship would eventually generate a correspondence in excess of 3,400 letters, telegrams and postcards. My paper is an assessment of the impact of Morrell on Russell's thought at the time he completed his classic Problems of Philosophy. In particular, I shall attempt to accomplish two tasks in this paper: -/- (a) In the first place, I shall show that Russell's 1911 view of philosophy appears to be contradictory, especially in regard to his conception of the Self. -/- (b) In the second place, I shall consider the nature and extent of Morrell's influence on Russell's 1911 view of philosophy and suggest that Lady Ottoline has more than a benign influence on Russell's 1911 understanding of the Self. -/- . (shrink)

Bertrand Russell’s conception of philosophy evolved dramatically in 1911 — the year he fell in love with Lady Ottoline Morrell. For many years Russell had been an ardent advocate of the view that philosophers ought to look for truths that are certain. The co-author of Principia Mathematica altered his commitment to certainty in philosophy in 1911. An analysis of his published views and correspondence from this time strongly suggests that the radical transformation was induced by an epiphany brought about (...) by his emotional entanglement with his lover. (shrink)

Towards the end of 1911, Russell complains that philosophy has unfortunately not produced a set of religious beliefs that he can rely on in his personal life. Early in his career philosophy had appeared very promising. But the adoption of G.E. Moores's philosophical views put paid to the "last hope of getting any creed out of philosophy". My paper is an attempt to show that Russell ought to celebrate, and not complain about the products of his philosophical endeavours. His correspondence (...) with Lady Ottoline Morrell contains a fascinating methodological hypothesis on the relationship between emotions and understanding: an hypothesis that can be used to produce the religion that Russell is after in 1911. This view will later form the basis of some of Russell's most obscure writings on religion - namely, his work on mysticism. (shrink)

Those who knew the famous philosopher Bertrand Russell at the turn of the century referred to him as 'the Day of Judgement'. This acclaimed selection of his early letters, available in paperback for the first time, reveals the full scope of Russell's life and innermost thoughts up to the First World War. It includes letters to his first wife, Alys Pearsall Smith, reveals the background to his now famous work in philosophy and the foundations of mathematics and how his mind (...) was stirred by socialism, free trade and votes for women. It also contains letters on his famous affair with Ottoline Morrell, providing yet another insight into one of the great intellectual figures of the twentieth century. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviews 87 c:\users\arlene\documents\rj issues\type3501\rj 3501 061 red.docx 2015-07-10 4:07 PM RUSSELL AS “SPANISH ASTRONOMER” (A RETROSPECTIVE REVIEW) Sheila Turcon Russell Research Centre / McMaster U. Hamilton, on, Canada l8s 4l6 [email protected] Constance Malleson. The Coming Back. London: Jonathan Cape, 1933. Pp. 328. 7s. 6d. ublished in 1933 and never reprinted, The Coming Back is Constance Malleson’s first novel. She had been publishing shorter fiction as well as articles since (...) 1919.1 Her lover, Bertrand Russell, had encouraged her writing career, assisting with the placement of her first short story in The English Review.2 He thought a writing career preferable to acting. Using the stage name “Colette O’Niel”, she had a successful career on the stage.3 The novel is a fictional account of the love affair between Russell and Colette.They appear as Gregory del Orellano and Konradin Waring. It was not, however, recognized as a roman à clef when it was published, as their affair was not known by anyone except their closest friends and family members. John Slater recognized it for what it was.4 Three of the four Russell biographers mention the novel.5 Presumably all three relied on Slater’s article. Ronald Clark quotes one sentence from the novel, a summation of Gregory’s character by one of the other characters who shared the view of many. Gregory was seen as “a man exhausting other men by his intellect; exhausting women by his intensity; wearing out his friends, sucking them dry, passing from person to person, never giving any real happiness—or finding any” (Coming Back, p. 307; Clark, p. 583). Caroline Moorehead quotes several sentences about the 1 Turcon, “A Bibliography of Constance Malleson” (2012). 2 Malleson, “The End” by “Christine Harte” (1919). 3 Turcon, op. cit., appendix, acting roles, pp. 188–90. 4 John G. Slater, “Lady Constance Malleson, ‘Colette O’Niel’” (1975), pp. 10–11. 5 Clark, The Life of Bertrand Russell (1975); Moorehead, Bertrand Russell (1992); Monk, Bertrand Russell,Vol. 1 (1996). m= 88 Reviews c:\users\arlene\documents\rj issues\type3501\rj 3501 061 red.docx 2015-07-10 4:07 PM importance of work to Konradin—work that Gregory deplored (Coming Back, p. 105; Moorehead, p. 264). Only Ray Monk undertakes a detailed description of the novel, even naming the last chapter of The Spirit of Solitude, “The Coming Back”. He identifies, as did Slater, several other characters with their real life counterparts: Ottoline Morrell is Magdalena de Santa Segunda; T. C. Maynard is T. S. Eliot; Jevons is Clifford Allen; Marcus Beazley is Maurice Elvey; Gertrude West is Dora Black. He quotes the sentence that Clark had used earlier (Monk 1: 607). Monk writes that “Russell claimed never to have read The Coming Back (or any of Colette’s other books). Perhaps he knew it would make painful reading” (1: 608). Monk provides no source for this judgment, and in fact it is untrue. Although The Coming Back is not specifically discussed in their correspondence, her other three books are.6 My reading of the novel is coloured by an attempt to identify what is true in the novel. My knowledge of the truth is based on editing their correspondence.The novel is a fascinating portrait of the Russell and Colette relationship, far more revealing to those in the know than her autobiographies, where libel concerns were always at the forefront. Her first autobiography, AfterTenYears, had been published two years earlier, in 1931, to great acclaim. The Coming Back’s dust-jacket reads: Here is the first novel from the author of that vivid and successful autobiography, After Ten Years. And as might be expected, it shows the same vitality, integrity, and the same passion for beauty as the earlier work. Constance Malleson presents a portrait of a young girl of our times, and of her stand for freedom, through all its stages from selfishness to a fine renunciation. Before the novel begins Colette includes four things. She dedicates the book to “Joneen when he is grown up”. Colette was very fond of Russell’s son John, and this may well refer to... (shrink)

In this article, I pay special expository attention to two pieces of philosophically relevant Wittgenstein–Russell correspondence from the period leading up to the ultimate demise of Russell's Theory of Knowledge manuscript (in June 1913). This is done in the hopes of shedding light on Wittgenstein's notoriously obscure criticisms of Russell's multiple relation theory of judgement. I argue that these two pieces of correspondence (the first, a letter from Wittgenstein to Russell dated January 1913, and the second, a letter from Russell (...) to Ottoline Morrell, reporting a tense confrontation with Wittgenstein on 26 May 1913) each refer to what is more or less the same approach to problems concerning the unity and well-formedness of propositions or judgements. However, the view advanced in Wittgenstein's January letter to Russell nevertheless differs in a key respect from the view of Russell's referred to in the May letter to Morrell. The difference involves Wittgenstein's incorporating qualities and relations as unsaturated parts of the copulae of atomic complexes, where these copulae are in turn conceived as logical forms. Because such an approach to logical form (and more specifically, to relations) was philosophically unpalatable to Russell, he undertook an alternative theoretical correction in the context of his 1913 Theory of Knowledge manuscript. This theoretical correction was discussed with Wittgenstein during the tense confrontation on 26 May, and involved deploying a supplemental significance constraint on judgements. It was this significance constraint on judgements, moreover, which was the ‘premiss’ alluded to by Wittgenstein in the context of a June 1913 letter to Russell, wherein he claims to express his objection to Russell's theory ‘exactly.’. (shrink)

Those who knew the famous philosopher Bertrand Russell at the turn of the century referred to him as 'the Day of Judgement'. This acclaimed selection of his early letters, available in paperback for the first time, reveals the full scope of Russell's life and innermost thoughts up to the First World War. It includes letters to his first wife, Alys Pearsall Smith, reveals the background to his now famous work in philosophy and the foundations of mathematics and how his mind (...) was stirred by socialism, free trade and votes for women. It also contains letters on his famous affair with Ottoline Morrell, providing yet another insight into one of the great intellectual figures of the twentieth century. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:_Russell_ journal (home office): E:CPBRRUSSJOURTYPE2601\REVIEWS.261 : 2006-06-05 11:55
eviews AN EPISTOLARY BIOGRAPHY S A Theology and Religious Studies / U. of Lund   Lund, Sweden @. Nicholas Griffin, ed., assisted by Alison Roberts Miculan. The Selected Letters of Bertrand Russell. Vol. : The Public Years, –. London and New York: Routledge, . Pp. xix, . Prices in : £. (pb £.); . (pb .). ith the publication of (...) the second volume of The Selected Letters of WBertrand Russell, Nicholas Griffin has completed a work of impressive scholarship. The first volume came out in  and contains  letters, the second  letters. The Bertrand Russell Archives at McMaster University hold between thirty and forty thousand of Russell’s letters. Griffin does not claim to have looked through all of them, but apart from our editor he has probably read more of them than any other person. This provided him a unique perspective on Russell of which he has made the best. The letters have been intertwined with extensive commentaries and supplied with informative footnotes amounting to approximately  pages in the first volume and  pages in the second. Together with the prefaces and the introductions, they supply us with an epistolary biography of Russell that covers most aspects of his life. There are some differences between the first and the second volume due to the availability of letters. In the first volume there are many letters to Russell’s first wife, Alys, and his lover, Lady Ottoline Morrell. Griffin writes in the preface to the second volume that these touched on almost everything that was important to Russell, which made it unnecessary to look for letters elsewhere. The letters to Ottoline continued their pace until , but he kept on writing to her until she died in . Griffin relies heavily on these letters up to her premature death. When Colette O’Niel came into the picture in , she took over Ottoline’s role, but Russell’s letters to her are not quite as revealing as those to Ottoline. The Russell Archives have close to , letters to Ottoline and   Reviewed by Katharine Tait in Russell, n.s.  (): –. russell: the Journal of Bertrand Russell Studies n.s.  (summer ): – The Bertrand Russell Research Centre, McMaster U.  - _Russell_ journal (home office): E:CPBRRUSSJOURTYPE2601\REVIEWS.261 : 2006-06-05 11:55  Reviews to Colette, and they contain much information for anyone interested in Russell. For the second volume Griffin has therefore been forced to search further afield for letters. At the same time there are many more letters to choose from. Another complicating factor has been the variety of Russell’s interests after . Before the First World War Russell had mainly devoted his energy to logic and the foundations of mathematics. When the war broke out, he channelled his energy into anti-war work. After the war his interests grew in many directions, as did the number of correspondents. Towards the end of his life he returned to political activism; still, his correspondence in the s covers a wider range of topics than at any other time. Given the variety of Russell’s interests, Griffin had to decide which interests should be included. This must have been a difficult task, but Griffin argues convincingly for why he has excluded letters directly related to Russell’s involvement in world government organizations, letters concerning the Indo-Pakistani border dispute and technical letters about philosophy. He has also excluded— although not totally—letters concerning religion, people he had known earlier, events he had been involved in and opinions he had held. Some topics had to be excluded due to the lack of suitable letters. In spite of all these restrictions, Griffin has been able to produce a most interesting, if not complete, epistolary biography. The book is divided into six chapters: () War (–),  letters; () Children, Companionship, and Joint Work (–),  letters; () Starting a School and Ending a Marriage (–),  letters; () Marriage, Poverty, and Exile (–),  letters; () Respectability at Last (–),  letters; () Peace (–),  letters. The titles and the periods are aptly chosen and give a good hint about the major projects in which Russell was involved. As can be deduced from the number of letters given for each chapter, Griffin devotes most attention to... (shrink)

Derek Jarman’s Wittgenstein (1993) is one of the very few films made about a philosopher’s life. Almost a parody of a late twentieth-century art-house movie, it contains a mimetic performance by Karl Johnson in the title role, plus cameos by Michael Gough (Bertrand Russell) and the ubiquitous Tilda Swinton (Russell’s lover, Ottoline Morrell). There is a green Martian (played by Nabil Shaban) who quizzes the young Ludwig Wittgenstein, and a collection of handsome young men sitting on deckchairs, looking puzzled (...) and gazing adoringly at the Master. The action, such as it is, takes place against a theatrical black background with a few props, and the whole thing lasts a brisk seventy minutes... (shrink)

In his The Problems of Philosophy Bertrand Russell presents us with his famous argument for representative realism. After a clear and accessible analysis of sensations, qualities and the multiplicity of perceptions of the qualities of physical objects, Russell concludes with a bold statement: -/- "The real table, if there is one, is not immediately known to us at all, but must be an inference from what is immediately known". -/- My argument and analysis strongly suggests that the conclusion that Russell (...) reaches in his argument is counterintuitive and incoherent. The philosophical statement that he presents on the table, in the opening pages of his famous Problems argument is fundamentally misconstrued, and as it stands, it is logically unacceptable. (shrink)