Genetic structure analysis of natural Sargassum muticum (Fucales, Phaeophyta) populations using RAPD and ISSR markers

Sargassum muticum is important in maintaining the structure and function of littoral ecosystems, and is used in aquaculture and alginate production, however, little is known about its population genetic attributes. In this study, random amplified polymorphic DNA (RAPD) and inter-simple sequence repeat (ISSR) markers were used to investigate the genetic structure of four populations of S. muticum and one outgroup of S. fusiforme (Harv.) Setchell from Shandong peninsula of China. The selected 24 RAPD primers and 19 ISSR primers amplified 164 loci and 122 loci, respectively. Estimates of genetic diversity with different indicators (P%, percentage of polymorphic loci; H, the expected heterozygosity; I, Shannon's information index) revealed low or moderate level of genetic variations within each S. muticum population, and a high level of genetic differentiations were determined with pairwise unbiased genetic distance (D) and fixation index (F-ST ) among the populations. The Mantel test showed that two types of matrices of D and F-ST were highly correlated whether from RAPD (r = 0.9706, P = 0.009) or ISSR data (r = 0.9161, P = 0.009). Analysis of molecular variance (AMOVA) was conducted to apportion the variations among and within the S. muticum populations. It indicated that variations among populations were higher than those within populations, being 55.82% verse 44.18% by RAPD and 55.21% verse 44.79% by ISSR, respectively. Furthermore, the Mantel test suggested that genetic differentiations among populations were related to the geographical distances (r > 0.6), namely, conformed to the IBD (isolation by distance) model, as expected from UPGMA (unweighted pair group method with arithmetic averages) cluster analysis. On the whole, the high genetic structuring among the four S. muticum populations along the distant locations was clearly indicated in RAPD and ISSR analyses (r > 0.9, P < 0.05) in our study.

UUV推进系统容错控制分配算法研究

针对水下机器人(UUV)推进系统容错控制分配问题,本文提出了基于SVD分解(奇异值分解)与定点分配的混合算法。与传统的方法相比,它回避了求伪逆矩阵的问题,降低了计算量;能够满足推进器饱和约束限制。利用水下实验平台推进系统模型进行了仿真实验,验证了算法的正确性和有效性。

水下机械手运动学逆解的一种优化解法

本文给出一种运用约束最优化的变尺度法求解Schilling水下机械手运动学逆解的方法。这种方法不仅具有牛顿方法的快速性和理想的总体收敛性,通过迭代求取H阵,不仔在奇异性问题,运用惩罚函数法选取步长,保证了从任意点进行搜索,同时有效地处理了约束的存在。这种方法较其它优化算法和搜索法有明显的快速性,在PⅡ550微机上的求解实验证明此算法完全可以用在此机械手运动学的实时求解中。

越野移动机器人自动驾驶专家系统的研究

本文研究越野移动机器人驾驶专家系统等有关问题．首先介绍了系统的硬件支持环境，然后阐述了自动驾驶专家系统的总体结构，有关知识库的内容以及使用知识的各功能模块的作用与运行机理．该系统已部分得以应用，能够完全代替驾驶员完成各种驾驶操作，并能进行自主导航、运动规划、自动绕障、动态跟踪目标、原路返回以及示教再现等复杂任务。

I Cannot Tell: Edward Thomas's Uncertainties

Poster, Jeremy, 'I Cannot Tell: Edward Thomas's Uncertainties', In: 'Branch-Lines: Edward Thomas and Contemporary Poetry', Guy Cuthbertson & Lucy Newlyn (eds), (London: Enitharmon Press), pp.264, 2007 RAE2008

Keats, Cornwall and the 'Scent of Strong-Smelling Phrases'

Marggraf Turley, Richard, 'Keats, Cornwall and the 'Scent of Strong-Smelling Phrases,' Romanticism (2006) 12 (2), pp. 102-114 RAE2008

Osobliwości środkowoeuropejskiej przestrzeni literackiej: ironiczni moraliści i ludyczni myśliciele

Autorka, stawiając pytanie o zasadność pojęcia Europy Środkowej, przypomina historię różnic poglądowych pomiędzy czeskimi a polskimi uczonymi na temat (nie)istnienia wspólnoty na tym terytorium: ci pierwsi w XIX wieku głosili ideę panslawizmu, w 30-tych latach XX wieku potrzebę syntezy kultur i literatur słowiańskich, a po II wojnie światowej przeciwstawiali słowiańskość Zachodowi, co wywoływało krytykę tych drugich. Stąd wynika odmienne rozumienie obszaru środkowoeuropejskiego – w Czechach przeważnie lokowanego w granicach Austro-Węgier, zaś w Polsce pojmowanego znacznie szerzej. Natomiast pewnego rodzaju spójny wyróżnik Europy Środkowej można znaleźć w literaturze, przytaczany bywa szczególnie gatunek powieści (np. Kafki, Haška, Musila, Gombrowicza), poprzedzony – jak przypomina autorka – polską gawędą i popularnym w Polsce szkicem fizjologicznym. Zawarty w nich element humoru, przeszedł w stadium satyry, a następnie groteski, tworząc dzięki temu niepowtarzalny odcień humoru środkowoeuropejskiego, często określanego jako drugi wyróżnik omawianego terytorium. Zdaniem autorki, środkowoeuropejska specyfika ściśle związana jest z kodem euroatlantyckim, a w tym właśnie kontekście zawsze powinna być rozpatrywana.

Buland al-Ḥaydarī – poeta pokolenia prekursorów współczesnej poezji arabskiej. Interpretacja twórczości

Głównym celem dysertacji jest interpretacja twórczości Bulanda al-Ḥaydarīego (iracki poeta kurdyjskiego pochodzenia (1926-1996)). Utwory Al-Ḥaydarīego zawierają w sobie charakterystyczne cechy współczesnego wiersza arabskiego. Opisują ponadto najważniejsze historyczne, społeczne i osobiste doświadczenia literackiego pokolenia tego poety, jak również innych członków społeczności arabskiej w okresie po II wojnie światowej. Praca doktorska składa się z dwóch części. Pierwszą część poprzedza krótki opis stanu badań nad liryką Al-Ḥaydarīego. W pierwszym jej rozdziale przedstawiono życiorys i biografię literacką poety oraz wyjaśniono pojęcia takie jak: ‘współczesna poezja arabska’, ‘wolna poezja’, ‘poemat prozą’ czy ‘ruch wolnej poezji’. Wspomniano również o głównych nurtach w poezji arabskiej w latach 50. i 60. XX w., jak również ukazano sposób, w jaki modernistyczni poeci postrzegali poezję. Natomiast w drugim rozdziale przedstawiono pokrótce charakterystyczne cechy (stylistyczne, składniowe i melodyczne) współczesnego wiersza arabskiego i zilustrowano je fragmentami utworów Al-Ḥaydarīego. Druga część dysertacji składa się z pięciu rozdziałów. W każdym z nich przedstawiono jeden lub kilka głównych motywów oraz ich różne warianty: w pierwszym rozdziale – motyw miłość, w drugim – motyw istnienia (życie i śmierć), w trzecim – motywy ojczyzny, obczyzny, zaangażowania społecznego twórcy i jego wyobcowania, w czwartym – motyw przestrzeni (np. dom, droga, raj, piekło) oraz w piątym – motyw czasu (przeszłość, teraźniejszość, przyszłość).

Rallying to a cause: the plays of Zakes Mda 1979-1989

Zakes Mda, dubbed one of South Africa's most prolific playwrights, produced his richest and most powerful theatre work during the 70s and 80s. Ironically, it is only in the 90s that he has been acknowledged in his own country as one of its foremost dramatists - ironic since he has recently moved away from drama into the realms of fiction. Fortunately Mda has accumulated a worthy canon of dramatic works, spanning radio and film, as well as theatre, and there is no reason to believe that he will not return to play writing. Mda has worked extensively in theatre in various capacities but most notably in the area of theatre-for-development. For example, he worked as director with Maratholi Travelling Theatre in Lesotho, an experience which contributed, in part, towards his book "When People Play People: Development Communication Through Theatre". Mda's plays have been produced in the United States, Britain, Spain, France and Russia as well as in southern Africa. "The Nun's Romantic Story" has been translated into Castilian and Catalan and "We Shall Sing for the Fatherland" and "Dark Voices Ring" have both been translated into Russian and French. In South Africa he won the Merit Award of the Amstel Playwright of the Year Society for "We Shall Sing for the Fatherland" in 1978 and in 1979 he was Amstel Playright of the Year for "The Hill". For his novel "She Plays with the Darkness", he won the Sanlam Literary Award in 1995.

Betha Cholmáin maic Luacháin: an ecclesiastical microcosm of the twelfth-century Irish midlands

Betha Cholmáin maic Luacháin (BCh) is a key source of information about a small ecclesiastical community of the Irish midlands in the medieval period. BCh is one of the longest medieval Irish hagiographic texts. A sole copy exists. Scholarly concern with manuscript Rennes 598, and the Life of Colmán therein, diminished following the 1911 edition of BCh. The most attention paid to BCh in the following decades focused largely on its onomastic information. The necessary detailed study of the text has not been undertaken. The present work is an initial view of significant areas of interaction between the church of Lann and its ecclesiastical, social and political milieu. While social and cultural aspects of the text may constitute the focus of this study, linguistic data is also investigated, complementary to evidence regarding its social and political testimony. In this way, light is cast on a complex ecclesiastical microcosm in the twelfth-century Irish midlands. In keeping with recent methodological work in the field a variety of tools are used to aid investigation, and to show the Life within its genre and wider context. An interdisciplinary approach will bring together strands of literary, cultural, archaeological, onomastic, historical, geographical, genealogical and hagiographical information, with reference to linguistic evidence where appropriate. This thesis seeks to suggest a template for studies undertaken on smaller church communities, and is set out in two main sections. The first section investigates the figure of the saint, his life, church, the manuscript source and the combination of prose and verse in the text. The second section examines the testimony of the Life regarding the ecclesiastical and secular concerns of the community of Lann, and how these concerns are represented. Evidence regarding the members of this community and their interaction with the church and the wider world is also discussed.

Scientism and instrumentalism After the Bomb: Dr Strangelove, End Zone, Crash and The Wire

This thesis argues that through the prism of America’s Cold War, scientism has emerged as the metanarrative of the postnuclear age. The advent of the bomb brought about a new primacy for mechanical and hyperrational thinking in the corridors of power not just in terms of managing the bomb itself but diffusing this ideology throughout the culture in social sciences, economics and other such institutional systems. The human need to mitigate or ameliorate against the chaos of the universe lies at the heart of not just religious faith but in the desire for perfect control. Thus there has been a transference of power from religious faith to the apparent material power of science and technology and the terra firma these supposedly objective means supply. The Cold War, however was a highly ideologically charged opposition between the two superpowers, and the scientific methodology that sprang forth to manage the Cold War and the bomb, in the United States, was not an objective scientific system divorced from the paranoia and dogma but a system that assumed a radically fundamentalist idea of capitalism. This is apparent in the widespread diffusion of game theory throughout Western postindustrial institutions. The inquiry of the thesis thus examines the texts that engage and criticise American Cold War methodology, beginning with the nuclear moment, so to speak, and Dr Strangelove’s incisive satire of moral abdication to machine processes. Moving on chronologically, the thesis examines the diffusion of particular kinds of masculinity and sexuality in postnuclear culture in Crash and End Zone and finishing up its analysis with the ethnographic portrayal of a modern American city in The Wire. More than anything else, the thesis wishes to reveal to what extent this technocratic consciousness puts pressure on language and on binding narratives.

Doubt, for narrator and orchestra

Doubt is a single-movement composition of roughly twelve minutes for narrator and orchestra (woodwinds, horns, and trumpets in pairs, timpani, percussion, strings). The piece explores the controversial issue of capital punishment. The text was compiled from resources found on the websites of Death Penalty Information Center (http://www.deathpenaltyinfo.org) and Anti-Death Penalty Information (http://www.antideathpenalty.org), as well as excerpts from the Bible. Doubt was conceived of as a dramatic work in which a narrator recites factual information in a direct and unemotional manner and the orchestra provides a response to the mixed emotions elicited by the text. The list of dates and case summaries presented in the middle section of the piece seemed most powerful and effective when recited in a natural speaking voice, which is why I chose not to set the text as song. Also, I chose the orchestral medium rather than a chamber setting because the nature of the topic demanded a larger range of colors and combinations, as well as a louder, fuller sound. Much of the music was composed while deciding which texts to include. Thus the music influenced the choice of text as much as the text suggested the musical setting. The four formal divisions of the piece are delineated primarily by the text. The first section is an orchestral introduction representing various emotional perspectives suggested by the texts. The narrator begins the second section with a Biblical verse over sparse orchestration. The third and main section of the piece begins with a new melody in the low strings that is closely related to the harmonic organization of the piece. The narrator lists dates of convictions, executions, exonerations and facts related to doubtful cases. The third section and the narration conclude with another brief passage from the Bible. The fourth section is a dramatic orchestral coda, bringing back the opening harmonies of juxtaposed perfect fifths. The final chord is full of tension and discord, reflecting the oppositions inherent in the topic of capital punishment: life vs. death, sympathy vs. reproach, pain vs. hope, but above all, doubt about guilt vs. innocence.

Restablecimiento del canopeo en un pastizal natural frente a perturbaciones experimentales de distintas naturaleza

p.81-93

Ambivalencias del discurso matemático escolar

El presente trabajo propone una discusión acerca de las situaciones que surgen en la clase de matemática a causa de las incoherencias del discurso matemático escolar, que pueden encontrarse en todas las áreas de esta disciplina. Desde cuestiones relativas al cálculo, al análisis matemático o a la geometría, pueden verse discursos “partidos” entre lo que se define y lo que luego se hace y evalúa. Los docentes fomentan esa división, y los alumnos las asumen como parte del contrato didáctico.

Tennyson and youth

This paper will examine the prominence of Alfred Tennyson's work in several textual accounts of youth penned between 1892 and the present day, by writers including T. S. Eliot, Virgina Woolf, Joseph Conrad, James Joyce, Kingsley Amis, J. M. Coetzee, William Faulkner and Andrew Motion. The young Woolf broke in her new pens by copying out Tennyson's 'Tithonus'; Eliot had a taste for Tennyson's 'martial and sanguinary poetry; as a young man. Kingsley Amis was singular among his contemporaries precisely because he admired the work of a poet considered outdated, and a reference for Modernist verse over that of Tennyson is seen as a sign of sophistication (however ironically presented) in the writings of people as diverse as Auden, Motion and Coetzee. [From the Author]