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Sample records for ezra jack keats

  1. Keats: A Collection of Critical Essays. Twentieth Century Views Series.

    Science.gov (United States)

    Bate, Walter Jackson, Ed.

    One of a series of works aimed at presenting contemporary critical opinion on major authors, this collection includes essays by Walter Jackson Bate, T. S. Eliot, Douglas Bush, Richard H. Fogle, Jack Stillinger, Harold Bloom, David Perkins, Earl Wasserman, and D. G. James--all dealing with the biography and literary work of John Keats. Designed for…

  2. Ezra Pound's Comparative Poetics

    OpenAIRE

    2001-01-01

    In his paper, "Ezra Pound's Comparative Poetics," Naikan Tao concentrates on Pound's theories regarding comparison and examines the significance of his comparative studies to the formulation of his poetics, an aspect that has not been sufficiently investigated. On the basis of Pound's work, Tao observes that the conception of comparison Pound shaped through his comparative studies is the internal principle that governs the presentation of details and particulars, the method Pound advocated as...

  3. Ezra Pound's Rorschach diagnosis.

    Science.gov (United States)

    Gillman, R D

    1994-01-01

    The 1946 Rorschach protocol of poet Ezra Pound was given blind to three clinical psychologists to see whether interpretations of this historic document would give perspective to the controversy that surrounded his hospital commitment as unfit to stand trial for his treasonous radio broadcasts during World War II. The psychologists found greater psychopathology and defect in Pound's functioning than was generally observed when he was originally tested, and they predicted the psychotic-organic depression that occurred after the poet's discharge 12 years later.

  4. Ezra Pound, "lopista"

    OpenAIRE

    2016-01-01

    This article reveals Ezra Pound’s deep, early engagements with the works of Lope de Vega. A young Pound studied Lope de Vega in graduate school and began a doctoral thesis on the gracioso figure in his plays, under the direction of famed lopista Hugo Rennert. But Pound abandoned his dissertation and, instead, translated small parts of Lope de Vega’s works (including a poem from Los pastores de Belén) and, more important, used scenes and quotations from Las almenas de Toro to structure the ear...

  5. The Oracle in Ode on a Grecian Urn of Keats

    Institute of Scientific and Technical Information of China (English)

    张青; 郝志远

    2007-01-01

    In the Ode to the Grecian Urn Keats came to the realization that the immortality he had quested for is a myth that cannot beinterpreted. The marbleized sacrificial rite on the ancient urn implies that human life is a process of endless sacrifice. This inevitable recognition

  6. Ezra Pound, «lopista»

    Directory of Open Access Journals (Sweden)

    Gayle Rogers

    2016-01-01

    Full Text Available This article reveals Ezra Pound’s deep, early engagements with the works of Lope de Vega. A young Pound studied Lope de Vega in graduate school and began a doctoral thesis on the gracioso figure in his plays, under the direction of famed lopista Hugo Rennert. But Pound abandoned his dissertation and, instead, translated small parts of Lope de Vega’s works (including a poem from Los pastores de Belén and, more important, used scenes and quotations from Las almenas de Toro to structure the early parts of what would become The Cantos. My focus is on the ways in which these translations and quotations helped Pound discover his governing themes for what are called his «Ur-Cantos» —the first three poems of his Cantos that he published in 1917, before he would revise them heavily and republish them in his first book, A Draft of XVI. Cantos (1925. To understand this, I analyze his chapter on Lope de Vega in his textbook of translations and scholarly commentaries, The Spirit of Romance (1910. Pound ultimately rejects Lope de Vega’s Baroque style, I argue, and stages his rejection across The Cantos, where he dismisses the Baroque as too heavily «ornamental» and not sufficiently suspended across literary time, and thus not the style he will use in developing The Cantos across the remainder of his life.

  7. The Oracle in Ode on a Grecian Urn of Keats

    Institute of Scientific and Technical Information of China (English)

    张青

    2007-01-01

    In the Ode to the Grecian Urn Keats came to the realization that the immortality he had quested for is a myth that cannot be interpreted.The marbleized sacrificial rite on the ancient urn implies that human life is a process of endless sacrifice.This inevitable recognition of mortal limitation during the process of human growth can not be dissolved by the soothing oracle that Beauty is truth,truth beauty.

  8. The Oracle in Ode on a Grecian Urn of Keats

    Institute of Scientific and Technical Information of China (English)

    张青

    2007-01-01

    In the Ode to the Grecian Urn Keats came to the realization that the immortality he had quested for is a myth that cannot be interpreted. The marbleized sacrificial rite on the ancient urn implies that human life is a process of endless sacrifice. This inevitable recognition of mortal limitation during the process of human growth can not be dissolved by the soothing oracle that Beauty is truth, truth beauty'.

  9. William Butler Yeats, George Antheil, Ezra Pound Friends and Music

    Directory of Open Access Journals (Sweden)

    Ann Saddlemyer

    2013-03-01

    Full Text Available William Butler Yeats was throughout his life determined to relate his words to music, and involved many writers and musicians in his search for the key. While in Rapallo staying near Ezra Pound, he met the young composer George Antheil, who became one of his converts. Others followed, with Yeats continuing to expound and clarify his ambition.

  10. The Berry-Keating Hamiltonian and the local Riemann hypothesis

    Science.gov (United States)

    Srednicki, Mark

    2011-07-01

    The local Riemann hypothesis states that the zeros of the Mellin transform of a harmonic-oscillator eigenfunction (on a real or p-adic configuration space) have a real part 1/2. For the real case, we show that the imaginary parts of these zeros are the eigenvalues of the Berry-Keating Hamiltonian \\hat{H}_BK=(\\hat{x}\\hat{p}+\\hat{p}\\hat{x})/2 projected onto the subspace of oscillator eigenfunctions of a lower level. This gives a spectral proof of the local Riemann hypothesis for the reals, in the spirit of the Hilbert-Pólya conjecture. The p-adic case is also discussed.

  11. Jonathan Pollock, Lire Les Cantos d’Ezra Pound

    OpenAIRE

    2015-01-01

    « Les Cantos d’Ezra Pound sont […] très peu lus, et pour cause : ils sont illisibles ». Tels sont les propos liminaires du chapitre XI de Lire Les Cantos d’Ezra Pound écrit par Jonathan Pollock. Dans cet ouvrage, l’auteur relève un défi multiple : celui de rendre accessible à un public francophone une œuvre difficile majeure de la poésie américaine, caractérisée par sa polyphonie, son plurilinguisme et son idiosyncrasie, auxquels s’ajoutent parfois la mauvaise réputation du poète notamment po...

  12. Stylistic Analysis of Ezra Pound’s Cathay

    Institute of Scientific and Technical Information of China (English)

    梁春丽

    2014-01-01

    Cathay by Ezra Pound is the masterpiece in modern poetry in the West, and it contains nineteen Chinese poems. Based on literary stylistic theory, Pound’s translation style in Cathay is analyzed from lexical categories, aspects of syntax and fig⁃ures of speech etc. It is found that the vocabulary and sentences in Cathay are very simple and brief, and the language is rich of images, which is the exact reflection of Pound’s idea of Imagism.

  13. Gregory S. Ezra a festschrift from theoretical chemistry accounts

    CERN Document Server

    Keshavamurthy, Srihari

    2015-01-01

    In this Festschrift dedicated to the 60th birthday of Gregory S. Ezra, selected researchers in theoretical chemistry present research highlights on major developments in the field. Originally published in the journal Theoretical Chemistry Accounts, these outstanding contributions are now available in a hardcover print format, as well as a special electronic edition. This volume provides valuable content for all researchers in theoretical chemistry and will especially benefit those research groups and libraries with limited access to the journal.

  14. The Berry-Keating Hamiltonian and the local Riemann hypothesis

    Energy Technology Data Exchange (ETDEWEB)

    Srednicki, Mark, E-mail: mark@physics.ucsb.edu [Department of Physics, University of California, Santa Barbara, CA 93106 (United States)

    2011-07-29

    The local Riemann hypothesis states that the zeros of the Mellin transform of a harmonic-oscillator eigenfunction (on a real or p-adic configuration space) have a real part 1/2. For the real case, we show that the imaginary parts of these zeros are the eigenvalues of the Berry-Keating Hamiltonian H-hat {sub BK}=( x-hat p-hat + p-hat x-hat )/2 projected onto the subspace of oscillator eigenfunctions of a lower level. This gives a spectral proof of the local Riemann hypothesis for the reals, in the spirit of the Hilbert-Polya conjecture. The p-adic case is also discussed.

  15. Ezra Pound's Subject Matter and the Poetic Avant-Garde

    Directory of Open Access Journals (Sweden)

    C. M. Foltz

    2015-10-01

    Full Text Available This paper explores Ezra Pound’s poetics in light of certain American avant-garde poetic schools who claim literary inheritance from him. Specifically, critics in the 1970s to 1990s attempted to redefine Pound’s ars poetica strictly in political terms without acknowledging numerous essays in which he remained apolitical with respect to poetry. In addition to this, Pound’s conception of poetic meter and other theoretical bases are explored. Some of these include Pound’s belief that subject matter is the source of poetic form, and that authorial intention is intimately related to how cultures promote values and a literary tradition. Though Pound is named as a predecessor of American avant-garde-ism, this paper explores how these connections are more tenuous than previously accepted by the academy.

  16. XS-1 Jack Russell

    Science.gov (United States)

    1956-01-01

    NACA High-Speed Flight Station Rocket Shop. Jack Russell, Head of the Rocket Shop preparing to do pressurization tests on the XLR-11 rocket engine. The console provided the readings for the test of the rocket engine systems. 1956 photo

  17. XS-1 Jack Russell

    Science.gov (United States)

    1956-01-01

    NACA High-Speed Flight Station Rocket Shop. Jack Russell, Head of the Rocket Shop preparing to do pressurization tests on the XLR-11 rocket engine. The console provided the readings for the test of the rocket engine systems. 1956 photo

  18. Mending the Butterfly: The New Historicism and Keats's "Eve of St. Agnes."

    Science.gov (United States)

    Banerjee, Jacqueline

    1995-01-01

    Argues that among the branches of historicism practiced by literary critics today, a branch of New Historicism that is broadly humanistic as opposed to narrowly political is the most illuminating. Describes the development and theoretical premises of this branch. Shows how it may be applied to the analysis of a literary work such as Keats's…

  19. Mending the Butterfly: The New Historicism and Keats's "Eve of St. Agnes."

    Science.gov (United States)

    Banerjee, Jacqueline

    1995-01-01

    Argues that among the branches of historicism practiced by literary critics today, a branch of New Historicism that is broadly humanistic as opposed to narrowly political is the most illuminating. Describes the development and theoretical premises of this branch. Shows how it may be applied to the analysis of a literary work such as Keats's…

  20. Happy birthday, Jack Steinberger

    CERN Multimedia

    CERN Bulletin

    2016-01-01

    Even if he’s recently stopped coming to CERN on his bike, Jack Steinberger and his piercing blue eyes are still regular visitors to our corridors. As he celebrates his 95th birthday, we pay tribute to one of CERN’s greatest scientists.   Jack Steinberger in 2008, pictured on the occasion of the "Accelerating Nobel" exhibition. (Image: Claudia Marcelloni/CERN) Jack emigrated from Germany to the United States in 1934 to escape the persecution of the Jews. He later went on to study under Enrico Fermi in Chicago and in the 1950s, he contributed to the development of bubble chambers. Using this new detection apparatus, he was involved in the myriad discoveries and results that led to the construction of the Standard Model. In 1961, while at Columbia University (New York), he took part in the first experiment with a high-energy neutrino beam, which gave rise to the discovery of the muon neutrino. This discovery was awarded the&a...

  1. Observaciones gramaticales en el comentario de Abraham Ibn Ezra a Lamentaciones

    Directory of Open Access Journals (Sweden)

    Ortega Monasterio, Mª Teresa

    2003-12-01

    Full Text Available One of the main concerns of the biblical commentaries of Abraham Ibn Ezra is the study of the Hebrew grammar and its characteristics. There we can find indeed many of the theories he had on the subject. Ibn Ezra includes remarks about the consonants, punctuation, morphology of verbs and nouns, etc., using several expressions which are characteristic of his own style. The present paper aims at analyzing the grammatical aspects of the commentary of Ibn Ezra on Lamentations, and at the same time comparing his theories with those of other Medieval commentators.

    Uno de los principales objetivos de Abraham Ibn Ezra en sus comentarios bíblicos es el estudio de la gramática hebrea y sus características. En sus comentarios podemos encontrar expuestas muchas de sus teorías acerca de este tema. A menudo hace observaciones acerca de las consonantes hebreas, de su vocalización, morfología, de verbos y nombres, etc., utilizando expresiones típicas de su estilo. En el presente trabajo se analizan los aspectos gramaticales del comentario de Ibn Ezra al libro de las Lamentaciones, intentando relacionar sus teorías con las de otros comentaristas medievales.

  2. Ezra Pound’s orientalist poetry, natural rootedness, and Lepidoptera

    Directory of Open Access Journals (Sweden)

    J.E. Terblanche

    2002-08-01

    Full Text Available In this article, we focus on the outward purpose (Umberto Eco and natural rootedness of Ezra Pound’s translation of Li Tai Po’s “The River Merchant’s Wife: a Letter.” Natural rootedness – a sign actively conditioned by and into a dynamic ecosystem – is a central aspect of Taoist poetics and modernist orientalism (Gary Snyder. We follow the outward purpose of the sign, in further exploration of a zone of between-ness: between the opposites of culture and nature (William Howarth. In particular, we focus on the butterfly image in this poem. An interdisciplinary, ecosemiotic reading is made of this image within its poetic and natural context. We argue that this image is related to actual (ecological and evolutionary butterfly colouration and behaviour in the (Chinese ecosystem. Although no historical evidence of either Pound’s or Li Po’s interest in butterflies exists as far as could be determined, the middle ground between English and Chinese that Pound occupies (Eric Hayot in this translation, could partially explain the interlevel correspondence between this image and actual butterfly behaviour. The article demonstrates that the image ties in well with an autumnal orpimentation or “enyellowment” of butterflies, as well as their sexual behaviour. It concludes that the significance of the sign is enhanced by its outward purpose towards and interpenetration with and within active nature, culminating in this central natural image in this important and creative poetic translation by Pound.

  3. Ezra Pound and Chinese Poetics: Teaching Anglo-American Imagist Poetry.

    Science.gov (United States)

    Dilley, Whitney C.

    The Anglo-American Imagist movement, begun in England by Ezra Pound in 1909 and flourishing through 1918, claimed to have drawn inspiration from Chinese and Japanese poetic forms. The promoters of Imagism, which included Hilda Doolittle, John Gould Fletcher, Richard Aldington, and later, Amy Lowell and William Carlos Williams, were attempting to…

  4. Jack knifing for semivariogram validation

    Directory of Open Access Journals (Sweden)

    Sidney Rosa Vieira

    2010-01-01

    Full Text Available The semivariogram function fitting is the most important aspect of geostatistics and because of this the model chosen must be validated. Jack knifing may be one the most efficient ways for this validation purpose. The objective of this study was to show the use of the jack knifing technique to validate geostatistical hypothesis and semivariogram models. For that purpose, topographical heights data obtained from six distinct field scales and sampling densities were analyzed. Because the topographical data showed very strong trend for all fields as it was verified by the absence of a sill in the experimental semivariograms, the trend was removed with a trend surface fitted by minimum square deviation. Semivariogram models were fitted with different techniques and the results of the jack knifing with them were compared. The jack knifing parameters analyzed were the intercept, slope and correlation coefficient between measured and estimated values, and the mean and variance of the errors calculated by the difference between measured and estimated values, divided by the square root of the estimation variances. The ideal numbers of neighbors used in each estimation was also studied using the jack knifing procedure. The jack knifing results were useful in the judgment of the adequate models fitted independent of the scale and sampling densities. It was concluded that the manual fitted semivariogram models produced better jack knifing parameters because the user has the freedom to choose a better fit in distinct regions of the semivariogram.

  5. Mechanism of regulation of prokaryotic tubulin-like GTPase FtsZ by membrane protein EzrA.

    Science.gov (United States)

    Chung, Kuei-Min; Hsu, Hsin-Hsien; Yeh, Hsin-Yi; Chang, Ban-Yang

    2007-05-18

    At initiation of cell division, FtsZ, a tubulin-like GTPase, assembles into a so-called Z-ring structure at the site of division. The formation of Z ring is negatively regulated by EzrA, which ensures only one ring at the midcell per cell cycle. The mechanism leading to the negative regulation of Z-ring formation by EzrA has been analyzed. Our data reveal that the interaction between EzrA and FtsZ not only reduces the GTP-binding ability of FtsZ but also accelerates the rate of GTP hydrolysis, both of which are unfavorable for the polymerization of FtsZ. Moreover, the acceleration in rate of GTP hydrolysis by EzrA is attributed to stabilization of the transition state for GTP hydrolysis and reduction in the affinity of GDP for FtsZ. Clearly, EzrA is able to modify the GTP hydrolysis cycle of FtsZ. On the basis of these results, a model for how EzrA acts to negatively regulate Z-ring formation is proposed.

  6. Swinburne reads Keats: Prostitution, pornography and the decadence of aesthetic critique

    Directory of Open Access Journals (Sweden)

    Joshua David Gonsalves

    2015-12-01

    Full Text Available Keats and Swinburne loom large as purveyors of the “aesthetic” in its early and late nineteenth-century forms—that is, as a discourse of subject-formation through the exercise of tasteful distinction and as a self-referential discourse of art for art’s sake, respectively. In this essay, I analyse how Swinburne constructs a “Keats” that will allow him to master a “manliness in crisis” that affected both writers. If this “crisis” is historicized by the body as a social matter that Victorian legislators were policing in the forms of prostitution and pornography, it is, I argue, this materiality that Keats and Swinburne insist of enjoying rather than sublimating. The ultimate question I pose is this: can aesthetics become the critical discourse that recent revisionary readings have postulated if both a Romantic and a Decadent aesthetic insist on enjoying the body, materiality, gender instability and other topoi communicated by prostitution, pornography and poetry.

  7. Disposition of Glaphyria Nitida Jack (Ericaceae)

    NARCIS (Netherlands)

    Steenis, van C.G.G.J.

    1963-01-01

    The genus Glaphyria Jack (Trans. Linn. Soc. 14, 1823, 128; reimpr. Calc. J. Nat. Hist. 4, 1843, 306) was based on two species, G. nitida Jack from G. Bunko or Sugar Loaf Mt in Bencoolen (neighbourhood of Mt Dempo) and G. sericea Jack, l.c. 129, from Penang 1. Bentham & Hooker (Gen. Pl. 1, 1865, 703)

  8. KEAT METAR

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — METAR is a routine scheduled observation and is the primary observation code used in the United States to satisfy requirements for reporting surface meteorological...

  9. 65th birthday Jack Steinberger

    CERN Multimedia

    Picasso,E

    1986-01-01

    Laudatio pour Jack Steinberger né le 25 mai 1921, à l'occasion de son 65me anniversaire et sa retraite officielle, pour sa précieuse collaboration au Cern. Néanmoins son principal activité continuera comme avant dans sa recherche au Cern. Plusieurs orateurs prennent la parole (p.ex. E.Picasso) pour le féliciter et lui rendre hommage

  10. Study of Ezra Pound’s Imagist Poetry through In a Station of the Metro

    Institute of Scientific and Technical Information of China (English)

    马琳

    2015-01-01

    <正>Ezra Pound is one of the best American poets in the 20th Century and a major representative of art critics and imagist poets.He launched the campaign of"imagism",which shaped the influential"imagism"and triggered a revolution of modern poetry.Through a classic imagist work,In a Station of the Metro by Pound,we can have a glimpse of elegance of imagist poetry and feel the energy and charm revealed by the juxtaposition of

  11. Superconformal field theory and Jack superpolynomials

    CERN Document Server

    Desrosiers, Patrick; Mathieu, Pierre

    2012-01-01

    We uncover a deep connection between the N=1 superconformal field theory in 2D and eigenfunctions of the supersymmetric Sutherland model known as Jack superpolynomials (sJacks). Specifically, the singular vector at level rs/2 of the Kac module labeled by the two integers r and s can be obtained explicitly as a sum of sJacks whose indexing diagrams are contained in a rectangle with r columns and s rows. As a second compelling evidence for the distinguished status of the sJack-basis in SCFT, we find that the degenerate Whittaker vectors (Gaiotto states), in both the Neveu-Schwarz and Ramond sectors, can be expressed rather simply in terms of sJacks. As a consequence, we are able to reformulate the supersymmetric version of the (degenerate) AGT conjecture in terms of the combinatorics of sJacks.

  12. A note on the Goodman Jack

    Science.gov (United States)

    Swolfs, H.S.; Kibler, J.D.

    1982-01-01

    A Note on the Goodman Jack: Reconnaissance experiments, performed to evaluate the practical utility of the hard-rock variety of the Goodman Jack, reveal that the Hustrulid-T* correction adequately reconciles the discrepancy between the measured and true deformation modulus of the rock mass in the range of 30 to 50 gigapascals. ?? 1982 Springer-Verlag.

  13. A Study of Ezra Pound’s Cathay from the Perspective of Rewriting Theory

    Institute of Scientific and Technical Information of China (English)

    AN Yu-ting

    2016-01-01

    Ezra Pound, not only a prominent poet but also a translator, published Cathay, which is translation of 19 classic Chi-nese poems on the basis of Fenollosa’s notes. Since its publication, it receives warm welcome from western readers but dispute also exists due to some mistranslations. This paper aims to use rewriting theory to evaluate this work from a fresh perspective. Rewriting theory, which was proposed by Andre Lefevere, asserts that ideology, poetics and patronage would exert influence on translation. With analysis of the original work, notes of Fenollosa, it can be concluded that Cathay is under the manipulation of ideology and poetics of Pound’s era. With regard to ideology, The World WarⅠinfluences the subject Pound chose and the meth-ods he used. On the part of poetics, Pound launched Imagism Movement against the dominant Victorian poetics. Direct images, concise language and free verse are embedded in Cathay.

  14. Jacks-of-All-Trades?

    DEFF Research Database (Denmark)

    Huber, Laura Rosendahl; Sloof, Randolph; Van Praag, Mirjam

    education program. Based on pupils' precisely measured level of verbal and mathematical ability, we exogenously compose 179 teams separated into four different types: JAT teams, math-specialist teams, verbal-specialist teams and mixed specialist teams. Our results show that balanced skills are beneficial......Previous empirical studies have shown that solo entrepreneurs benefit from having balanced skills: Jacks-of-All-Trades (JATs) are better entrepreneurs than specialists are. Nowadays however, the majority of entrepreneurs start up and run ventures together in teams. In this paper we test whether...... the effect of more balanced skills is also positive in a team of entrepreneurs. We also explore whether (a lack of) individual balanced skills can be substituted by combining the skills of various specialists within one team. Our field experiment studies teams of children participating in an entrepreneurship...

  15. Beyond Spot Light of Jack Welch

    Institute of Scientific and Technical Information of China (English)

    Mrs.Welsh

    2004-01-01

      Due to Jack Welch's world fame as the most successful CEO, Jack Welch China Forum 2004 drew much attention among China business circle. In order to ensure the anticipated effect, the organizing committee made full use of resources in preparing the event. All the parties involved made thorough preparations and close collaboration. CYTS M.I.C.E. won the bid through heat competition as the sole designated event service agent for the forum, which contributed to Jack Welch's most successful trip to China.……

  16. Beyond Spot Light of Jack Welch

    Institute of Scientific and Technical Information of China (English)

    Mrs.Welsh

    2004-01-01

    @@ Due to Jack Welch's world fame as the most successful CEO, Jack Welch China Forum 2004 drew much attention among China business circle. In order to ensure the anticipated effect, the organizing committee made full use of resources in preparing the event. All the parties involved made thorough preparations and close collaboration. CYTS M.I.C.E. won the bid through heat competition as the sole designated event service agent for the forum, which contributed to Jack Welch's most successful trip to China.

  17. Superconformal minimal models and admissible Jack polynomials

    CERN Document Server

    Blondeau-Fournier, Olivier; Ridout, David; Wood, Simon

    2016-01-01

    We give new proofs of the rationality of the N=1 superconformal minimal model vertex operator superalgebras and of the classification of their modules in both the Neveu-Schwarz and Ramond sectors. For this, we combine the standard free field realisation with the theory of Jack symmetric functions. A key role is played by Jack symmetric polynomials with a certain negative parameter that are labelled by admissible partitions. These polynomials are shown to describe free fermion correlators, suitably dressed by a symmetrising factor. The classification proofs concentrate on explicitly identifying Zhu's algebra and its twisted analogue. Interestingly, these identifications do not use an explicit expression for the non-trivial vacuum singular vector. While the latter is known to be expressible in terms of an Uglov symmetric polynomial or a linear combination of Jack superpolynomials, it turns out that standard Jack polynomials (and functions) suffice to prove the classification.

  18. Who Is Jack Kevorkian, Really?

    Institute of Scientific and Technical Information of China (English)

    John; Corry; 庞必诤

    1999-01-01

    作为一名外科医生,我很重视不断提高自己的英语阅读水平。在国内几家英语刊物中,我对《科技英语学习》另眼相看。她虽然不是专业性的医学刊物,但是,我偶尔还能从贵刊得到若干新鲜的西方的医学和健身知识。而且《科技英语学习》的一个优点是注重诱发和培养读者学习英语的兴趣。我的几个同事都爱读贵刊。 言归正传。今天上“网”,浏览了今年第 4期的美国著名刊物Reader’sDigest,发现佳作一篇。题目是:Who Is Jack Kevorkian,Really?Jack Kevorkian也是一名医生,他已经成为今天美国社会的一个“新闻人物”。 Kevorkian是一个所谓信奉和执行 euthanasia(安乐死)的医生。他自称是“死亡医生”。尸体解剖证明:被他执行“安乐死”的69人中,仅有16人是terminally ill,另外 48名所得的仅是nonterminal disease,而另外 5名则根本是no anatoimcal(解剖的;解剖学的)evidence of disease at all。 Kevorkian认为:a person’s level of suffering and wish to die are moreimportant factors. 对于Kevorkian这样的医生,现在存在两种不同的意见: While supporters of Kevorkian say he is an angel of mercy(怜悯的天使)who helps patients die with dignity,some critics say he is more accuratelydescribed as a se

  19. Binaric structures and female erasure in Ezra Lim’s “Woman”

    Directory of Open Access Journals (Sweden)

    Oscar C. Labang

    2012-10-01

    Full Text Available The upsurge of discourses in Gender and Feminist studies and theories has garnered new levels of consciousness about the place of the woman in contemporary society. The contemporary African society has been greatly impacted by such discourses and this has led to new writings (poetry, fiction and non-fiction that confront hitherto unchallenged definitions and positioning of women. Negative representation of the female gender still continues to surface in contemporary African literary texts by males. This essay explores one of such texts by a Cameroonian poet. It discusses various forms of female erasure by showing how binary structures in Ezra Lim's "Womanhood" function to reveal profound ideas of female marginality. Although the poem like many others in Lim's collection titled Woman (A Collection of Poems has a deeply religious tone and mindset, it also conveys strong undercurrents of anti-female sentiments by continually placing the female in a peripheral position. Lim conveys a certain reality (typical Cameroonian cultural experience from a particular viewpoint that shows women to exist purposely for the good of the men. Lim's religious inclinations play a major role in his definition of the position of the woman in the binary equation.

  20. Solar drying of jack fruit almonds

    OpenAIRE

    Alexandre J. de M. Queiroz; Dantas,Hermeval J; Figueirêdo,Rossana M. F. de; Karla dos S Melo

    2011-01-01

    Dryers heated by solar energy have been constructed and used in drying whole and half jack fruit almonds. The samples were dried during the day in direct sun and in the conventional solar dryer prepared for this purpose. Another piece of equipment was built for reception and accumulation of sun energy in a body of water, which was used as a heat source for night drying. The drying with the sun energy was compared with artificial drying. The jack fruit almonds were dried whole, half, with pell...

  1. La obra astrológica de Abraham Ibn Ezra en dos códices castellanos

    Directory of Open Access Journals (Sweden)

    Sainz de la Maza, Carlos

    2010-12-01

    Full Text Available In this article we offer a study and a commentary of Abraham Ibn Ezra’s astrological works that have been preserved in two old Spanish manuscripts translated from Hebrew in a late medieval converso environment.

    En el presente artículo ofrecemos un estudio y comentario de las obras astrológicas de Abraham Ibn Ezra que han sido preservadas en dos manuscritos en castellano traducidos del hebreo en un entorno converso a finales de la Baja Edad Media.

  2. Ezra Pound’s Economics and Politics-from the Perspective of Confucian Si Duan四端

    Institute of Scientific and Technical Information of China (English)

    Tan Xiaocui

    2014-01-01

    Ezra Pound has a life-long involvement with Confucianism. He strongly believes that human nature is inherently good, namely, Confucian doctrine si duan四端-ren yi li zhi仁義禮智. The paper aims at interpreting and analyzing Pound’s views on economics and politics from the perspective of si duan四端and it is expected to draw a conclusion that a state prospers when its wang王with posses ion of ren仁is able to deal with義and li利properly.

  3. Clásica y moderna : Un acercamiento a la poética de Ezra Pound

    OpenAIRE

    2011-01-01

    Ezra Pound (1885-1972) mantuvo una constante y compleja relación con las tradiciones clásicas y medievales. Desde Personae (1909), de ascendencia ovidiana, hasta el Homage to Sextus Propercius (1919), pasando por su recurrencia sistemática a mitos y figuras de la tradición grecolatina en los Cantos (1920-1972), la obra de Pound se realiza en múltiples operaciones de lecturas y reescrituras de las tradiciones grecolatinas y medievales. Este trabajo realiza un acercamiento a las recreaciones...

  4. Appreciating Gantos' Jack Henry as an Archetype.

    Science.gov (United States)

    Watson, Jinx Stapleton

    2001-01-01

    Examines the contemporary realism of the literary character Jack Henry, a middle school child, as representative of two classic literary elements, the quest cycle and the lone hero. Concludes that classic structures of plots and characteristics of hero offer many modern protagonists a shape for their realistic and ordinary adventures. (SG/47)

  5. Jack Sewing Machine Co.,Ltd.

    Institute of Scientific and Technical Information of China (English)

    2004-01-01

    Jack Sewing Machine Co., Ltd. has a staff of over 1000, of which 83 personals engaged in the development and research,accounting for 8.3% of the total staff. In 2002, the company established a comprehensive center for research and development,integrating the design, sourcing of parts, and the design and manufacturing of uniform together with installation and experiment.

  6. Lively Jack-O'-Lantern Still Life

    Science.gov (United States)

    Sanzaro, Christy

    2010-01-01

    Pumpkin carving is a favorite classroom activity. Around late October, the halls are filled with the sour smell of raw pumpkin innards, as parents, teachers and students are up to their elbows in yellowish strings and slime. These round, orange squash are transformed into jack-o'-lanterns that are placed around the school. The day after Halloween,…

  7. Jack in the Box, Unit 1A

    DEFF Research Database (Denmark)

    Gammelgaard Nielsen, Anders

    2011-01-01

    In the assignment known as ‘JACK- in-the-box’ the aim is to foster col- laborative situations through man- aging a complex architectural issue. The aim is to conduct an integrat- ed teaching course that extends from an introductory outline pro- cess through to the project devel- opment phase...

  8. Ezra Pound and Confucianism%庞德与儒家思想

    Institute of Scientific and Technical Information of China (English)

    张影

    2014-01-01

    Ezra Pound devoted his whole life to introducing Chinese culture to Western world. He believed in Kung’s Confucianism deeply,making it a cure to save Western chaos and spiritual crisis of darkness. In The Can-tos,Pound quoted frequently from classical Confucian works like The Analects and even directly used Chinese characters with profound Confucian thought. After an integrated examination on The Cantos,we see the deep Con-fucian impact on Pound and conclude that these Confucian principles like order,peace and harmony,and the in-ward self-examination and self-improvement of the individual are in fact the consummate embodiment of his liter-ary declaration and political appeal.%庞德一生都致力于向美国人包括欧洲人介绍中国文化,他特别推崇以孔子为代表的儒家之思想,认为儒家思想是拯救混乱、黑暗西方的精神危机的灵丹妙药。庞德的《诗章》引用了诸多《论语》等中国儒学经典的词句,并且很多地方直接使用汉字,蕴含着浓厚的儒家思想。全面考察《诗章》可知儒家思想对庞德的影响之深刻,儒家主张的秩序、和谐和个人的内省修身,是庞德文学主张和精神诉求的集中体现。

  9. Tetracycline hypersensitivity of an ezrA mutant links GalE and TseB (YpmB) to cell division

    NARCIS (Netherlands)

    Gamba, P.; Rietkötter, E.; Daniel, R.A.; Hamoen, L.W.

    2015-01-01

    Cell division in bacteria is initiated by the polymerization of FtsZ into a ring-like structure at midcell that functions as a scaffold for the other cell division proteins. In Bacillus subtilis, the conserved cell division protein EzrA is involved in modulation of Z-ring formation and coordination

  10. From the Poem ‘Blue,blue is the Grass’ to Explore the impact of Chinese Classical Poetry on Ezra Pound

    Institute of Scientific and Technical Information of China (English)

    王新

    2011-01-01

    Blue,blue is the grass,Ezra Pound's version of a classical Chinese poetry,has enjoyed great popularity in the English reading public since its coming out in 1915.Through his translation Pound brought freshness into English poetry on the one hand,and disse

  11. The Berry-Keating operator on $L^2(\\rz_>,\\ud x)$ and on compact quantum graphs with general self-adjoint realizations

    CERN Document Server

    Endres, Sebastian

    2009-01-01

    The Berry-Keating operator $H_{\\mathrm{BK}}:= -\\ui\\hbar(x\\frac{\\ud\\phantom{x}}{\\ud x}+{1/2})$ [M. V. Berry and J. P. Keating, SIAM Rev. 41 (1999) 236] governing the Schr\\"odinger dynamics is discussed in the Hilbert space $L^2(\\rz_>,\\ud x)$ and on compact quantum graphs. It is proved that the spectrum of $H_{\\mathrm{BK}}$ defined on $L^2(\\rz_>,\\ud x)$ is purely continuous and thus this quantization of $H_{\\mathrm{BK}}$ cannot yield the hypothetical Hilbert-Polya operator possessing as eigenvalues the nontrivial zeros of the Riemann zeta function. A complete classification of all self-adjoint extensions of $H_{\\mathrm{BK}}$ acting on compact quantum graphs is given together with the corresponding secular equation in form of a determinant whose zeros determine the discrete spectrum of $H_{\\mathrm{BK}}$. In addition, an exact trace formula and the Weyl asymptotics of the eigenvalue counting function are derived. Furthermore, we introduce the ``squared'' Berry-Keating operator $H_{\\mathrm{BK}}^2:= -x^2\\frac{\\ud^2...

  12. 正中下怀--CONVERSE JACK PURCELL IT

    Institute of Scientific and Technical Information of China (English)

    Vincent

    2009-01-01

    在NIKE入主CONVERSE,且Jack Purcell也被全面改款后.如今的Jack Purcell已变得面目全非;从好的方面来讲,厚鞋垫、扁而修身的鞋形大大提升了Jack Purcell的穿着舒适度.而在基本的设定上.CONVERSE更坚持开发更高标准的Jack Purcell.这对换来的却是融合了Old Schoc4风格篮球鞋细节的新型Jack Purcell,除了大量使用漆皮、篮球鞋专用的鞋带扣外,IT版的鞋帮更比原版Jack Purcell Hi高出许多。黑色的选择,则正中潮人下怀。

  13. Understanding Imagism from Ezra Pound's Poems%透过庞德的诗解读意象主义

    Institute of Scientific and Technical Information of China (English)

    张红燕; 李慧珍

    2007-01-01

    In the history of American poetry,imagism was only a transient phase of no longer than a deeade.But Imagism movement is very important in the development of modern poetry.This paper briefly introduces Imagism and analyzes Ezra Pound's poems to deeply understand the characteristics of Imagist poems.%在美国诗耿历史上,意象主义仅仅是不超过10年的短暂阶段,但是意象主义诗歌运动对现代诗歌的发展是非常重要的.笔者简要介绍了意象主义的背景,并通过分析庞德诗中意象特点来解读意象主义.

  14. Vector-Valued Jack Polynomials from Scratch

    Directory of Open Access Journals (Sweden)

    Jean-Gabriel Luque

    2011-03-01

    Full Text Available Vector-valued Jack polynomials associated to the symmetric group S_N are polynomials with multiplicities in an irreducible module of S_N and which are simultaneous eigenfunctions of the Cherednik-Dunkl operators with some additional properties concerning the leading monomial. These polynomials were introduced by Griffeth in the general setting of the complex reflections groups G(r,p,N and studied by one of the authors (C. Dunkl in the specialization r=p=1 (i.e. for the symmetric group. By adapting a construction due to Lascoux, we describe an algorithm allowing us to compute explicitly the Jack polynomials following a Yang-Baxter graph. We recover some properties already studied by C. Dunkl and restate them in terms of graphs together with additional new results. In particular, we investigate normalization, symmetrization and antisymmetrization, polynomials with minimal degree, restriction etc. We give also a shifted version of the construction and we discuss vanishing properties of the associated polynomials.

  15. Capsicum Annuum L. Lil' Pumpkin and Pepper Jack

    Science.gov (United States)

    The USDA, ARS announces the release of two new pepper cultivars 05C37-3 (trademarked as Lil’ Pumpkin) and 05C69-12 (trademarked as Pepper Jack). Lil’ Pumpkin and Pepper Jack are intended for ornamental applications. Lil’ Pumpkin’s unique black foliage and orange pumpkin-like fruit and Pepper Jack’s ...

  16. The Berry-Keating operator on L{sup 2}(R{sub >},dx) and on compact quantum graphs with general self-adjoint realizations

    Energy Technology Data Exchange (ETDEWEB)

    Endres, Sebastian; Steiner, Frank, E-mail: sebastian.endres@uni-ulm.d, E-mail: frank.steiner@uni-ulm.d [Institut fuer Theoretische Physik, Universitaet Ulm Albert-Einstein-Allee 11, 89081 Ulm (Germany)

    2010-03-05

    The Berry-Keating operator H{sub BK} := -i h-bar (x d/dx + 1/2) (Berry and Keating 1999 SIAM Rev. 41 236) governing the Schroedinger dynamics is discussed in the Hilbert space L{sup 2}(R{sub >},dx) and on compact quantum graphs. It has been proved that the spectrum of H{sub BK} defined on L{sup 2}(R{sub >},dx) is purely continuous and thus this quantization of H{sub BK} cannot yield the hypothetical Hilbert-Polya operator possessing as eigenvalues the nontrivial zeros of the Riemann zeta function. A complete classification of all self-adjoint extensions of H{sub BK} acting on compact quantum graphs is given together with the corresponding secular equation in form of a determinant whose zeros determine the discrete spectrum of H{sub BK}. In addition, an exact trace formula and the Weyl asymptotics of the eigenvalue counting function are derived. Furthermore, we introduce the 'squared' Berry-Keating operator H{sub BK}{sup 2} := -x{sup 2} d{sup 2}/dx{sup 2} -2x d/dx - 1/4 which is a special case of the Black-Scholes operator used in financial theory of option pricing. Again, all self-adjoint extensions, the corresponding secular equation, the trace formula and the Weyl asymptotics are derived for H{sup 2}{sub BK} on compact quantum graphs. While the spectra of both H{sub BK} and H{sup 2}{sub BK} on any compact quantum graph are discrete, their Weyl asymptotics demonstrate that neither H{sub BK} nor H{sup 2}{sub BK} can yield as eigenvalues the nontrivial Riemann zeros. Some simple examples are worked out in detail.

  17. Inactivation of jack bean urease by allicin.

    Science.gov (United States)

    Juszkiewicz, Adam; Zaborska, Wiesława; Sepioł, Janusz; Góra, Maciej; Zaborska, Anna

    2003-10-01

    Allicin--diallyl thiosulfinate--is the main biologically active component of freshly crushed garlic. Allicin was synthesized as described elsewhere and was tested for its inhibitory ability against jack bean urease in 20 mM phosphate buffer, pH 7.0 at 22 degrees C. The results indicate that allicin is an enzymatic inactivator. The loss of urease activity was irreversible, time- and concentration dependent and the kinetics of the inactivation was biphasic; each phase, obeyed pseudo-first-order kinetics. The rate constants for inactivation were measured for the fast and slow phases and for several concentrations of allicin. Thiol reagents, and competitive inhibitor (boric acid) protected the enzyme from loss of enzymatic activity. The studies demonstrate that urease inactivation results from the reaction between allicin and the SH-group, situated in the urease active site (Cys592).

  18. Converse Jack Purcell LTT MJ回魂

    Institute of Scientific and Technical Information of China (English)

    米粉

    2009-01-01

    相同的概念、相同的手法.再来一次是否会有重复的感觉?这要看谁来玩.Converse给你的答案是未必。上一次是All Star,这回则是被大家称为“开口笑”的Jack PurceIl。如同前发一样.同是采用了MJ跳《Billie Jean》时所穿的珠片战衣设计.分别推出了黑、银两色,特别在鞋面采用了绸缎材料设计.加上随鞋附送的丝带状鞋带.给众位MJ的粉丝带来一份怀念。

  19. Advanced jack up rig breaking U.S. construction drought

    Energy Technology Data Exchange (ETDEWEB)

    Kelly, P. [Rowan Companies Inc., Houston, TX (United States)

    1997-03-10

    A new heavy duty jack up, due in mid-1998, will be able to simultaneously drill and produce wells in harsher environments and deeper water than current jack ups in the worldwide fleet. Rowan Cos. Inc.`s Gorilla V is the only mobile offshore drilling unit (MODU) currently under construction in the US. Two more enhanced Gorilla design rigs are planned before the year 2000. The enhanced Gorilla class jack up represents the most technologically advanced jack up unit constructed to date. The rigs are structurally designed to meet year-round weather challenges in the harshest geographical environments. Rising demand for drilling rigs, coupled with a dwindling fleet, is generating supply shortages around the world, particularly at the high-specification end of the market. Even increasing the historical retirement age from 20 to 25 years, rig attrition continues at a level of about 18 rigs per year. Apart from the jack up market per se, however, Rowan`s strategy in designing and building enhanced Gorillas is to improve existing jack up drilling technology and offer the versatility to operate as a drilling unit, a mobile production unit, or both simultaneously in either open water locations or alongside existing platforms. The paper discusses the market for these heavy jack-ups, the use of one on the Cohasset project in Nova Scotia, the Gorilla V and enhanced Gorillas, geographical range of use, and MOPU economics.

  20. Linguistic Parallelism in “La Belle Dame Sans Mercy” by John Keats and Urdu Poem “Husan ki Divy” by Shevan Rizvi

    Directory of Open Access Journals (Sweden)

    Shaukat Khan

    2016-05-01

    Full Text Available Linguistic parallelism, the tendency of using similar forms together within a continuous discourse, is a very strong linguistic phenomenon in literature. Linguistic parallelism means the repetition of a syntactic construction in successive sentences for rhetorical effect. In Linguistics parallelism means the use of parallel or similar syntactical structure in a text. Parallelism can be practiced at different levels, i.e. from word to the sentence level. It is common in many languages around the globe. This research work demonstrates that “La Belle Dam Sans Merci” by John Keats and “Husan ki Divy” by Shevan Rizvi exhibit more similarities than differences with regard to this constraint. These two products of literary genius exhibit thematic affinity and formal congruity despite their production in regions separated by miles of land and water, in cultures lacking any shared values, and in languages having no common ancestry. This paper presents linguistic analysis of the two poems in terms of intra textual analysis of the English poem, intra textual analysis of the Urdu poem, and a comparative analysis of both the poems. Keywords: Linguistic parallelism, Stylistics, John Keats, Shevan Rizvi, Poetry

  1. An Analytic Formula for the A_2 Jack Polynomials

    Directory of Open Access Journals (Sweden)

    Vladimir V. Mangazeev

    2007-01-01

    Full Text Available In this letter I shall review my joint results with Vadim Kuznetsov and Evgeny Sklyanin [Indag. Math. 14 (2003, 451-482] on separation of variables (SoV for the $A_n$ Jack polynomials. This approach originated from the work [RIMS Kokyuroku 919 (1995, 27-34] where the integral representations for the $A_2$ Jack polynomials was derived. Using special polynomial bases I shall obtain a more explicit expression for the $A_2$ Jack polynomials in terms of generalised hypergeometric functions.

  2. 解读庞德:意象派和东方诗学%Reading Ezra Pound: Imagist and Oriental Poetics

    Institute of Scientific and Technical Information of China (English)

    吴艳华

    2006-01-01

    美国现代主义诗歌的发端离不开庞德(Ezra Pound,1885~1972)及其创立的意象派和东方诗学.意象派的诞生和理论开始了庞德对现代派诗歌的征途.而随后对东方诗美学思想的吸收和运用使其诗艺日臻成熟,从而形成了庞德特有的跨文化诗学.意象派和东方诗学的创立充分体现了庞德的现代性,并对美国现代主义诗歌有着深远的影响.终其一生,庞德创立了一个"庞德时代",特别是就其诗学理论而言.

  3. 艾兹拉·庞德、艾米·洛威尔与李白的诗歌情缘%The Love of Ezra Pound and Amy Lowell for Libai’s Poems

    Institute of Scientific and Technical Information of China (English)

    陈怀志; 王拉沙; 罗伦全; 赵彤; 胡竹

    2012-01-01

      Libai is one great poet in Tang dynasty. Ezra Pound and Amy Lowell are two representatives of American Imagists peotry in the early twentith century. Ezra Pound an Amy Lowell didn’t understand Chinese,but both of them deeply loved Libai’s poems and translated many of them in the early twentith century.%  李白是中国唐代伟大诗人,艾兹拉·庞德(Ezra Pound)和艾米·洛威尔(Amy Lowell)是20世纪初美国诗歌意象派的代表。艾兹拉·庞德和艾米·洛威尔不懂中文,却在20世纪初和李白诗歌结下了深厚的情缘。

  4. The Making of Two Readers: Agatha Christie and Jack London.

    Science.gov (United States)

    Baghban, Marcia

    1990-01-01

    Looks at the lives of two well-known writers to explore how diverse experiences produce literate adults. Discusses Agatha Christie and Jack London who used reading and writing to earn a living and to gain international reputations. (MG)

  5. keat Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  6. In conversation with Nobel Laureate Jack Steinberger

    CERN Multimedia

    2011-01-01

    Awarded the 1988 Nobel Prize for Physics for his discovery of the muon neutrino, Jack Steinberger has been part of the CERN establishment for almost 50 years. He recently celebrated his 90th birthday and can still be found in his CERN office on an almost daily basis. If you happened to have a coffee with him… this is what he would tell you: his recollections, and thoughts about the present and future of particle physics.   I’ve been at CERN for 45 years, and I’ve seen this organisation go through a lot. Experiments have grown significantly and so have the aspirations of particle physics. When I did my thesis 64 years ago, I could do it alone in just 6 months and I could get worldwide interesting results. Now, experiments at CERN are made up of hundreds, if not thousands of people, working for 20 years to get a result. My thesis advisor was Enrico Fermi, and in 1953 – unless it was 1952, I’d done my thesis a few years before - he was asked to be t...

  7. “And as for text we have taken it...” – Retranslating Ezra Pound’s Renaissance Cantos

    Directory of Open Access Journals (Sweden)

    Massimo Bacigalupo

    2015-12-01

    Full Text Available Abstract - Ezra Pound’s Cantos, a Modernist classic, present many challenges for the translator, who has to follow in Pound’s footsteps and often divine the intention and context of the fragments that compose his historic and lyric collage. A new Italian translation of the first extensive installment of the poem, XXX Cantos (1930, appeared in 2012; a previous Italian rendering of the same work, by the poet’s daughter Mary de Rachewiltz, was published in 1961. By comparing representative excerpts of the two translations, this paper discusses different approaches to one source text. While the 1961 target text aimed at concision at the expense of fluency, the 2012 text employs a more colloquial style, attempting to make an arduous and complex work more reader-friendly. However, the two translations adopt the same strategy when rendering the many passages Pound paraphrased from medieval and renaissance Italian writings. Rather than retranslating Pound’s English, they print excerpts from the Italian originals he worked from, with their quaint spellings and often obscure wording. Just as Pound asks his readers and translators to work with him on the texts he presents in the poem, so the translators presuppose a reader who is also a collaborator, and who will be intrigued by the old documents appearing opposite Pound’s modernist paraphrases. Translation is always a work in progress, but this is particularly the case when approaching the uniquely intricate and collaborative project of Pound’s Cantos. Riassunto - XXX Cantos (1930 di Ezra Pound, un classico del modernismo anglo-americano, è  stato tradotto in italiano nel 1961 dalla figlia del poeta, Mary de Rachewiltz, con risultati assai notevoli e curiosi, data la sua lunga collaborazione col padre. Nel 2012 è apparsa una nuova versione che tenta di rendere il poema in una lingua più scorrevole e colloquiale e così guadagnare ad esso un più vasto pubblico. Molti di questi trenta

  8. 50 Years of ``Scaling'' Jack Kilby's Invention

    Science.gov (United States)

    Doering, Robert

    2008-03-01

    This year is the 50th anniversary of Jack Kilby's 1958 invention of the integrated circuit (IC), for which he won the 2000 Nobel Prize in Physics. Since that invention in a laboratory at Texas Instruments, IC components have been continuously miniaturized, which has resulted in exponential improvement trends in their performance, energy efficiency, and cost per function. These improvements have created a semiconductor industry that has grown to over 250B in annual sales. The process of reducing integrated-circuit component size and associated parameters in a coordinated fashion is traditionally called ``feature-size scaling.'' Kilby's original circuit had active (transistor) and passive (resistor, capacitor) components with dimensions of a few millimeters. Today, the minimum feature sizes on integrated circuits are less than 30 nanometers for patterned line widths and down to about one nanometer for film thicknesses. Thus, we have achieved about five orders of magnitude in linear-dimension scaling over the past fifty years, which has resulted in about ten orders of magnitude increase in the density of IC components, a representation of ``Moore's Law.'' As IC features are approaching atomic dimensions, increasing emphasis is now being given to the parallel effort of further diversifying the types of components in integrated circuits. This is called ``functional scaling'' and ``more then Moore.'' Of course, the enablers for both types of scaling have been developed at many laboratories around the world. This talk will review a few of the highlights in scaling and its applications from R&D projects at Texas Instruments.

  9. Consistency in Ezra Pound and Confucianism%一以贯之:庞德与儒学的情缘

    Institute of Scientific and Technical Information of China (English)

    谭小翠

    2015-01-01

    埃兹拉·庞德与儒学的不解情缘可以用“一以贯之”来形容,它经历了三个阶段:知遇之感、信仰之重、重生之恩。庞德对儒学的痴迷,使他成为一位真正的“儒生”,并使其在西方视域下建构了庞氏儒学。庞德与儒学的不解情缘贯穿于他多舛的一生,他追求礼乐仁和的政治理想,将儒学作为医治西方社会道德危机、心灵腐朽的良药,因此他发出西方社会“亟需孔子”的诉求。%Ezra Pound’s involvement with Confucianism can be phased into three stages:his early appreciation of Confucianism, his strong belief in Confucianism, and his eternal gratitude to Confucius for saving his life. Pound is a real Confucian disciple and he has established his own Confucianism in the West. Pound’s adoration for Confucianism runs through his unsmooth life. He pursues the political ideals of LiYueRenHeand considers Confucianism as an effective medicine to cure Western diseases. Therefore, he calls out “Immediate need for Confucius” in the West. To study Pound’s involvement with Confucianism contributes to the study of Pound’s Confucianism and also conduces to the return of Confucian traditions in modern China.

  10. JACK - ANTHROPOMETRIC MODELING SYSTEM FOR SILICON GRAPHICS WORKSTATIONS

    Science.gov (United States)

    Smith, B.

    1994-01-01

    JACK is an interactive graphics program developed at the University of Pennsylvania that displays and manipulates articulated geometric figures. JACK is typically used to observe how a human mannequin interacts with its environment and what effects body types will have upon the performance of a task in a simulated environment. Any environment can be created, and any number of mannequins can be placed anywhere in that environment. JACK includes facilities to construct limited geometric objects, position figures, perform a variety of analyses on the figures, describe the motion of the figures and specify lighting and surface property information for rendering high quality images. JACK is supplied with a variety of body types pre-defined and known to the system. There are both male and female bodies, ranging from the 5th to the 95th percentile, based on NASA Standard 3000. Each mannequin is fully articulated and reflects the joint limitations of a normal human. JACK is an editor for manipulating previously defined objects known as "Peabody" objects. Used to describe the figures as well as the internal data structure for representing them, Peabody is a language with a powerful and flexible mechanism for representing connectivity between objects, both the joints between individual segments within a figure and arbitrary connections between different figures. Peabody objects are generally comprised of several individual figures, each one a collection of segments. Each segment has a geometry represented by PSURF files that consist of polygons or curved surface patches. Although JACK does not have the capability to create new objects, objects may be created by other geometric modeling programs and then translated into the PSURF format. Environment files are a collection of figures and attributes that may be dynamically moved under the control of an animation file. The animation facilities allow the user to create a sequence of commands that duplicate the movements of a

  11. Vector-valued Jack polynomials and wavefunctions on the torus

    Science.gov (United States)

    Dunkl, Charles F.

    2017-06-01

    The Hamiltonian of the quantum Calogero-Sutherland model of N identical particles on the circle with 1/r 2 interactions has eigenfunctions consisting of Jack polynomials times the base state. By use of the generalized Jack polynomials taking values in modules of the symmetric group and the matrix solution of a system of linear differential equations one constructs novel eigenfunctions of the Hamiltonian. Like the usual wavefunctions each eigenfunction determines a symmetric probability density on the N-torus. The construction applies to any irreducible representation of the symmetric group. The methods depend on the theory of generalized Jack polynomials due to Griffeth, and the Yang-Baxter graph approach of Luque and the author.

  12. Progress in inflammatory neuropathy -the legacy of Dr Jack Griffin.

    Science.gov (United States)

    Feldman, Eva L; Hughes, Richard A C; Willison, Hugh J

    2015-11-01

    The past quarter of a century has brought incredible advances in our understanding of inflammatory neuropathies, and the insights into Guillain-Barré syndrome (GBS) began in the 1990s with the seminal work of Dr Jack Griffin and his colleagues. In this essay, we provide a tribute to Jack, and review the recent progress in a field that he termed his personal favourite. In particular, we discuss the new developments in our understanding and diagnosis of inflammatory neuropathies, the recent emergence of the node of Ranvier and the paranode as sites of intensive investigation, and the mechanistic evidence that is providing a platform for therapeutic development studies.

  13. Myotonia congenita in a Jack Russell terrier : clinical communication

    Directory of Open Access Journals (Sweden)

    R.G. Lobetti

    2009-05-01

    Full Text Available A 4-month-old male Jack Russell terrier was evaluated for non-painful muscle spasms and collapse associated with exercise and activity. Clinical examination revealed well-defined, non-painful hypertrophic muscles of the fore and hind limbs and exercise and excitement induced hindquarter bunny-hopping gait, which improved with activity but worsened with resting and with any sudden changes in direction of movement. Neurological examination and routine laboratory testing showed no abnormalities. DNA analysis for myotonia congenita showed the dog to have a gene mutation in the chloride ion channel, diagnostic for myotonia congenita, which has not been reported in the Jack Russell terrier breed.

  14. Design and Construction of a Remote Control Car Jack

    Directory of Open Access Journals (Sweden)

    C.S Agu and J.E Igwe

    2016-07-01

    Full Text Available A remote control car jack which will be affordable, simple to maintain and easy to operate was designed and fabricated with locally available materials. Results of the performance test of the car jack conducted with Toyota Camry of weight1359kg, BMW (5series of 1685kg, Mercedes jeep of weight 2355kg and Toyota prado of weight 2555kg showed credible performance by lifting and sustaining the vehicles to heights of 14cm under 1.7mins; 13cm under 2mins; 11cm under 2.2mins and 10cm under 2.4mins respectively.

  15. Psychoanalysis of Jack London's "The Call of the Wild" and "White Fang"

    Science.gov (United States)

    Yang, Hongyan

    2015-01-01

    "The Call of the Wild" and "White Fang" both are masterpieces of Jack London. The protagonists Buck and White Fang are the incarnation of Jack himself to some extent for the two novels reveal a great deal of the writer. This essay aims at psychoanalyzing Jack London's creative process, the Oedipus complex and the confliction…

  16. Hydrography and Jack Mackerel stock in the South Pacific

    NARCIS (Netherlands)

    Hintzen, N.T.; Corten, A.A.H.M.; Gerlotto, F.; Brunel, T.P.A.

    2013-01-01

    The study on Hydrography and Jack Mackerel stock (Trachurus murphyi) in the South Pacific is currently one year underway. The main achievement consisted of collecting detailed datasets on Chilean, Peruvian and European fisheries activities and information on the hydrographical / biochemical and envi

  17. Jack Colby Continues Stellar Legacy of APPA Fellows

    Science.gov (United States)

    Thaler-Carter, Ruth E.

    2011-01-01

    This article profiles 2011 APPA Fellow Jack K. Colby, assistant vice chancellor for facilities operations at North Carolina State University. Colby has a history of nonstop service to his profession and to APPA that makes that ever-active, never-stop rabbit look like a piker. Like previous APPA Fellows, Colby could easily rest on his laurels of…

  18. Jack London and "the Call of the Wild"

    Institute of Scientific and Technical Information of China (English)

    徐晶

    2002-01-01

    The article vividly analyzes the characteristics of Jack London's writing theme that is the description of the con-flicts between nature and human. Based on the "call of the wild" and its hero Buck, It points out the author' s writingthoughts, that is strong will human show in their fight against nature.

  19. CONVERSE JACK PURCELL笑容依旧灿烂

    Institute of Scientific and Technical Information of China (English)

    Brian

    2008-01-01

    Converse百周年纪念复刻了100双经典名作,不管是美产还是日产,在近期都引爆了潮流界。这些曾经的经典鞋款的再度复刻也直接让Jack Purcell的人气再度攀升。

  20. JACK LONDON ETNÓLOGO AMATEUR DEL PUGILISMO

    Directory of Open Access Journals (Sweden)

    Loïc Wacquant

    2012-12-01

    Full Text Available De los relatos que Jack London ha consagrado al boxeo, A Piece of Steak es sin dudas aquel que merece hoy nuestra mayor atención, e incluso un lugar en el panteón de los textos literarios sobre el Noble Arte, y junto a él otros tres títulos...

  1. The Authority and Charismas of Jack Ma's Leadership

    Institute of Scientific and Technical Information of China (English)

    陈希

    2014-01-01

    Jack Ma is the top manager of Ali Baba group, with a strong leadership. He mixes autocratic leadership and charismatic leadership together. The powers he used are from his position, the reward system of the company and the charismas to gain his leading power. In addition, he uses his charismas and his achievements to win the trust of the employees, which develop his leadership.

  2. Astronaut Jack Lousma with part of Inflight Medical Support System

    Science.gov (United States)

    1973-01-01

    Astronaut Jack R. Lousma, Skylab 3 pilot, reaches into a medical kit, part of the Inflight Medical Support System (IMSS), during training for the second manned Skylab Earth-orbital mission. This activity took place in the Orbital Workshop (OWS) trainer in the Mission Simulation and Training Facility at JSC.

  3. Unbearable Burden in John Keats' Hard Life --A Path to Untimely Death%生命中不能承受之重——评约翰·济慈的人生苦旅

    Institute of Scientific and Technical Information of China (English)

    童兆升; 方英姿

    2012-01-01

    The untimely death of John Keats has always been a great grief for readers who are devot- ed to his poetry. The letters John Keats wrote to his friends and to his lover Fanny Brawne and his works map out the hard life journey of John Keats and give a clear indication that his death was caused by a complex of reasons, namely, the burden of his poor family, the collapse of his illness, the gloomy prospect of his love and marriage, and his persistent and devoted pursuit of poetry writing, etc.%约翰·济慈的命途多舛以及英年早逝一直让喜爱他诗歌的读者唏嘘叹惋。研读济慈的诗作以及他写给亲朋和爱人芬妮的书信,获得诸多启示:济慈的死亡应该是多方面原因综合作用的结果,家庭的重负、疾病的摧残、恋情的折磨以及对诗歌艺术殚精竭虑的追求等,构成他赢弱生命中不能承受之重,这些重负最终摧毁他的生命,终结了他短暂的人生苦旅。

  4. Analysis of symbolism in Jack London’s A Piece of Steak--A brief analy-sis on contradictory beliefs of Jack London

    Institute of Scientific and Technical Information of China (English)

    周尧

    2014-01-01

    A Piece of Steak is one of Jack London’s short stories in which lots of symbolism usage could be found. Jack London is an American realistic writer who did not receive much formal education. However, he loved reading and was greatly influenced by Spenser, Darwin, Nietzsche, Karl Marx and etc. The influences made Jack London form contradictory beliefs which were shown in this short story.

  5. Poetry of Life / Poetry of Instruction: poems by Andrzej Sosnowski in the Context of Ezra Pound’s Theory of Poetry

    Directory of Open Access Journals (Sweden)

    Wit Pietrzak

    2013-01-01

    Full Text Available In the present article Andrzej Sosnowski’s poems is analysed against the theoretical principles elaborated by Ezra Pound. Pound’s postulates such as the ideogrammic method and the melo-, fano-, and logopoeia, all of which are briefly discussed, are used to characterise Sosnowski’s poetic practice. The article shows that, irreducible differences notwithstanding, both poets write in accordance with a set of similar principles. The difference between Sosnowski’s poems and Pound’s Cantos consists mainly in the fact that the former gives up on the inherently Poundian desire to reorganise reality in an epic work and seeks what may be termed a scene of voice on which one’s ownmost identity can be manifested. It is among the many discourses that comprise poems that a voice of life sounds in all its complexity and fragility.

  6. Ezra Pound's Poetry Image Implement: Cognition and Annotation%埃兹拉·庞德诗歌意象实现的认知诠释

    Institute of Scientific and Technical Information of China (English)

    苏冰

    2012-01-01

    "The imagism poetry" of Ezra Pound has pioneered for thethe UK - US modem poetry, promoted the developent of American free verse; at the same time, his experience of tranlating Chinese poetry has enabled him to exercise the two image constrction skiUs: superposition and Juxtaposition into his poetry creation.%埃兹拉.庞德的"意象派诗歌"开辟了英美现代诗歌的先河,推动了美国新诗运动的发展;同时通过中国诗歌的翻译实践,他学会了掌握中国诗人构建意境的技巧:意象叠加和意象并置,并将其应用于自己的诗歌创作中。

  7. Intertextualidad y fragmentariedad en The Waste Land de T. S. Eliot y The Cantos de Ezra Pound: Análisis comparativo del uso de la cita y la alusión

    OpenAIRE

    2016-01-01

    En este trabajo se analiza la intertextualidad en la obra de dos de los mayores poetas del siglo XX en lengua inglesa, T. S. Eliot y Ezra Pound, que se revela como elemento clave para su comprensión. Veremos también como la intertextualidad otorga al poema un carácter fragmentario, siguiendo los preceptos del Modernismo literario, del que Eliot y Pound son dos de sus máximos referentes.

  8. Non-Symmetric Jack Polynomials and Integral Kernels

    CERN Document Server

    Baker, T H

    1996-01-01

    We investigate some properties of non-symmetric Jack, Hermite and Laguerre polynomials which occur as the polynomial part of the eigenfunctions for certain Calogero-Sutherland models with exchange terms. For the non-symmetric Jack polynomials, the constant term normalization ${\\cal N}_\\eta$ is evaluated using recurrence relations, and ${\\cal N}_\\eta$ is related to the norm for the non-symmetric analogue of the power-sum inner product. Our results for the non-symmetric Hermite and Laguerre polynomials allow the explicit determination of the integral kernels which occur in Dunkl's theory of integral transforms based on reflection groups of type $A$ and $B$, and enable many analogues of properties of the classical Fourier, Laplace and Hankel transforms to be derived. The kernels are given as generalized hypergeometric functions based on non-symmetric Jack polynomials. Central to our calculations is the construction of operators $\\widehat{\\Phi}$ and $\\widehat{\\Psi}$, which act as lowering-type operators for the n...

  9. Study on General Performance of Jack-up Under Elevated Condition

    Institute of Scientific and Technical Information of China (English)

    LI Hong-tao; YANG Qing-xia; LI Ye

    2009-01-01

    Method of checking for jack-up elevated performance including leg structure strength, fixation system or jacking sys- tem bearing capacity, pre-load requirements, spud can beating capacity and overturning stability is suggested in this pa- per. As an example, a jack-up with truss legs is analyzed by finite element analysis method. This paper may be helpful to the rig owners, operators and designers.

  10. Analysis on Jack London's Feminist Point of View in Martin Eden

    Institute of Scientific and Technical Information of China (English)

    陈俊汀

    2016-01-01

    Martin Eden is one of the famous novels of Jack London, who is a distinguished writer in America, and now it still wins great popularity in the whole world. In this novel, the author Jack London depicts the protagonist Martin Eden's striving for success incisively. This thesis, based on the theory of feminism, will give a detailed analysis of the character traits of female characters in Martin Eden and Jack London's attitudes towards women.

  11. 机翼顶起设计解析%Analysis of the Wing Jacking Design

    Institute of Scientific and Technical Information of China (English)

    王燕玲

    2015-01-01

    It is known that aircraft jacking is an essential operating procedure in aircraft maintenance, and wing jacking plays an important role in aircraft jacking. There are two aspects of wing jacking design:the design of jack-ing pads and the type selection of jacks. Jacking pads and the aircraft structure design are associated and interac-tional with the selection of jacks.%飞机全机顶起是飞机维护时必不可少的操作程序,其中机翼顶起是全机顶起的一个重要组成部分。机翼顶起设计包括两个方面内容,即顶垫设计和机翼千斤顶选型。顶垫设计与顶起点结构设计、机翼千斤顶选型是联合设计、相互影响的。

  12. Visit at PFAFF Silberblau for follow -up of mechanical jacks fabrication for HF

    CERN Multimedia

    Hubert Gerwig

    2000-01-01

    The HF detctor is sitting on either side of the CMS experiment at a height of the beam, 8.79m This detector weighs 220 tons will be lifted in 4 steps on its working position. 4 mechanical jacks with 100t force each will act on each corner of rectangle of 5600mm x 3200mm. The individual main pieces of the jacks are shown here. Next step is the assembly of the jacks by putting together housing, groundplate, spindle, gear, worm gear etc. Delivery of the first 4 jacks in dec.2000

  13. Prediction Methods of Spudcan Penetration for Jack-up Units

    Institute of Scientific and Technical Information of China (English)

    ZHANG Ai-xia; DUAN Meng-lan; LI Hai-ming; ZHAO Jun; WANG Jian-jun

    2012-01-01

    Jack-up units are extensively playing a successful role in drilling engineering around the world,and their safety and efficiency take more and more attraction in both research and engineering practice:An accurate prediction of the spudcan penetration depth is quite instrumental in deciding on whether a jack-up unit is feasible to operate at the site.The prediction of a too large penetration depth may lead to the hesitation or even rejection of a site due to potential difficulties in the subsequent extraction process; the same is true of a too small depth prediction due to the problem of possible instability during operation.However,a deviation between predictive results and final field data usually exists,especially when a strong-over-soft soil is included in the strata.The ultimate decision sometimes to a great extent depends on the practical experience,not the predictive results given by the guideline.It is somewhat risky,but no choice.Therefore,a feasible predictive method for the spudcan penetration depth,especially in strata with strong-over-soft soil profile,is urgently needed by the jack-up industry.In view of this,a comprehensive investigation on methods of predicting spudcan penetration is executed.For types of different soil profiles,predictive methods for spudcan penetration depth are proposed,and the corresponding experiment is also conducted to validate these methods.In addition,to further verify the feasibility of the proposed methods,a practical engineering case encountered in the South China Sea is also presented,and the corresponding numerical and experimental results are also presented and discussed.

  14. Destructive Cholangitis in an Adult Jack Russell Terrier

    Directory of Open Access Journals (Sweden)

    Atsushi Kodama

    2012-01-01

    Full Text Available A 4-year-old female Jack Russell terrier dog exhibited vomiting and severe jaundice of the visible mucous membranes and skin. Ultrasonography revealed diffuse areas of high echogenicity and focal areas of low echogenicity in the left lobe of the liver. On macroscopic observation of the biopsied liver specimen, many scattered irregularly shaped red spots were observed on the liver surface and on the cut surface. Histopathologically, there was loss of the interlobular bile duct and cholangitis accompanied by infiltration of pigment-laden macrophages in the Glisson’s capsule. Therefore, in the present case the dog was diagnosed with destructive cholangitis.

  15. Orthopaedic jack for scoliosis surgery purposes: Concept and design

    Science.gov (United States)

    Supriadi, Sugeng; Radhana, Rakha M.; Hidayanto, Taufik Eko; Whulanza, Yudan; Ali, Notario, Nanda; Rahyussalim

    2017-02-01

    Scoliosis surgery is one of the most difficult orthopedic surgery that have been committed today as the failure rate of orthopedic surgery for adult patients is 15%. Aside from the long duration of surgery, this surgical failure is caused by failure in biomedical instrumentation. Furthermore, this kind of failure is causing inefficiency of the surgery. With current known orthopedic surgery method, three surgeons are needed in a single orthopedic surgery. In fact, a single surgery can take up to 8 hours to be done, which increases the risk of surgical failure. Based on this problem, authors hope that our orthopedic jacks could solve the problem.

  16. Analysis of Ezra Pound's Paradoxical Poetics%埃兹拉·庞德的悖论诗学理论探析

    Institute of Scientific and Technical Information of China (English)

    付江涛

    2011-01-01

    Ezra Pound has been the target of controversy in fields like literature,art,economy and politics.His literary theories and works are full of contradiction and paradox.This paper intends to make a thorough literature review so as to re-examine Pound's paradoxical ideas,and eventually proposes a solution of juxtaposition medium for the special form of unity of opposites,and thus presents Pound's unique theory of paradoxical poetics.%埃兹拉.庞德关于文学、艺术、经济、政治等领域的观点理论一直是人们争论的话题。他的文学理论和著作中充斥着太多的矛盾和疑惑。本文旨在通过文献梳理回顾,审视庞德的矛盾理论观点,并最终建议通过寻求并置媒介将其归结为一种对立统一的特殊存在形式,从而形成庞德独特的悖论诗学理论。

  17. 庞德《华夏集》创译的美学价值%Aesthetic Values of Creative Translation of Ezra Pound′s Cathay

    Institute of Scientific and Technical Information of China (English)

    朱伊革

    2013-01-01

    美国著名诗人、翻译家埃兹拉·庞德提出的音诗、形诗和理诗的诗歌三分法理论表现了他对诗歌创作和诗歌翻译独特的美学思考。庞德创造性翻译而成的《华夏集》完美再现了其诗歌三分法理论。这部创译混杂的译诗集既蕴含了中国古典诗歌的美学特点,也融汇了庞德的现代主义诗学理念,体现了庞德复兴英语诗歌的美学追求。%Ezra Pound ,a renow ned American poet and translator ,advocated the theory of three kinds of poetry :melopoeia ,phanopoeia ,logopoeia ,w hich indicated his aesthetic thoughts on poetry creation and poetry transla-tion .Cathay ,a collection of ancient Chinese poems translated creatively by Pound ,displayed his theory of three kinds of poetry .Cathay was not only permeated with aesthetic characteristics of Chinese ancient poems and Pound′s poetics of modernism ,but also demonstrated Pound's aesthetic pursuit of revitalizing English poetry .

  18. THE INFLUENCE OF MUSICAL CADENCE INTO AQUATIC JUMPING JACKS KINEMATICS

    Directory of Open Access Journals (Sweden)

    Mário J. Costa

    2011-12-01

    Full Text Available The aim of this study was to analyze the relationships between the head-out aquatic exercise "Jumping jacks" kinematics and the musical cadence in healthy and fit subjects. Five young women, with at least one year of experience conducting head- out aquatic programs were videotaped in the frontal plane, with a pair of cameras providing a double projection (above and below the water surface. Subjects performed an incremental protocol of five bouts (120 b·min-1, 135 b·min-1, 150 b·min-1, 165 b·min-1 and 180 b·min-1 with 16 full cycles of the "Jumping jacks" exercise. Data processing and calculation of upper limbs' (i.e. hands, lower limbs' (i.e. feet and center of mass' 2D linear velocity and displacement were computed with the software Ariel Performance Analysis System and applying the 2D-DLT algorithm. Subjects decreased the cycle period during the incremental protocol. Significant and negative relationships with the musical cadence were verified for the center of mass and upper limbs vertical displacement. On the other hand, for the lower limbs lateral velocity, a significant and positive relationship was observed. It is concluded that expert and fit subjects increase the lower limb's velocity to maintain the range of motion, while the upper limb's displacement is reduced to coupe the music cadence.

  19. Qualitative Research, Semiotics, North Beach, South of Markey, Jack London, and the Grateful Dead.

    Science.gov (United States)

    Shank, Gary

    1999-01-01

    Looks at educational research from a macro perspective, advocating semiotics as the foundation for qualitative research in education. Presents myths and disputations and an open-ended conclusion via the kaleidoscopic interpretations of Jack London, Phil Dick, Jack Kerouac, the Grateful Dead, and an assortment of street characters. (Author/VWL)

  20. 29 CFR 1926.305 - Jacks-lever and ratchet, screw, and hydraulic.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 8 2010-07-01 2010-07-01 false Jacks-lever and ratchet, screw, and hydraulic. 1926.305... Power § 1926.305 Jacks—lever and ratchet, screw, and hydraulic. (a) General requirements. (1) The... secured at once. (ii) Hydraulic jacks exposed to freezing temperatures shall be supplied with an...

  1. Qualitative Research, Semiotics, North Beach, South of Markey, Jack London, and the Grateful Dead.

    Science.gov (United States)

    Shank, Gary

    1999-01-01

    Looks at educational research from a macro perspective, advocating semiotics as the foundation for qualitative research in education. Presents myths and disputations and an open-ended conclusion via the kaleidoscopic interpretations of Jack London, Phil Dick, Jack Kerouac, the Grateful Dead, and an assortment of street characters. (Author/VWL)

  2. Comparison of Sparse and Jack-knife partial least squares regression methods for variable selection

    DEFF Research Database (Denmark)

    Karaman, Ibrahim; Qannari, El Mostafa; Martens, Harald

    2013-01-01

    The objective of this study was to compare two different techniques of variable selection, Sparse PLSR and Jack-knife PLSR, with respect to their predictive ability and their ability to identify relevant variables. Sparse PLSR is a method that is frequently used in genomics, whereas Jack-knife PL...

  3. Investigating the Jack the Ripper Case: Engaging Students in a Criminal Investigations Class through Active Learning

    Science.gov (United States)

    Gutierrez, Daniel; Kazmi, Syed

    2010-01-01

    The present study examines the utilization of a class project involving the Jack the Ripper murders. Students enrolled in a criminal investigations class were required to investigate the five canonical murders associated with the infamous serial killer known as Jack the Ripper and the murders that occurred in London during 1888. This paper…

  4. Study on the Diffraction Patterns of α"-Fe16N2 with Jack-1 and Jack-2 Structural Parameters

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    Two body centered tetragonal (bct) crystal structures of α"-Fe16N2 with x=0.25, z=0.3125 (Jack-1) and x=0.222, z=0.306 (Jack-2) respectively, were analyzed theoretically with EMS software package. The simulation of diffraction patterns indicates that both diffraction patterns of the same axis in these two structures obey bcc extinction rule. The conclusion is also obtained from the analyses of the diffracted waves, α"-Fe16N2 precipitates in the diffusion layer of ion-nitrided α-iron have been studied with transmission electron microscope (TEM). We have distinctly observed the electron diffraction patterns of α"-Fe16N2 in [100], [111], [110], [011], [210], [021], [311], [ll3], [331] and [133] zone axes with perfect symmetry, which indicate the parallel orientation relationship with α matrix: α"//α' {100}α"// {100}α. The analyses of diffraction patterns, which obey bcc extinction rule, verify the bct structure of α"-Fe16N2 discovered by X-ray diffraction.

  5. 从庞德的《长干行》译文看汉诗的创意英译%Ezra Pound's Creative English Translation as Seen from a Chinese Poem:The River-Merchant's Wife:A Letter

    Institute of Scientific and Technical Information of China (English)

    张秀清

    2007-01-01

    艾兹拉·庞德(Ezra Pound)是美国二十世纪初意象运动的杰出代表,他的译著Cathay闻名中外,其中李白的《长干行》英译已成为了经典之作.本文对照《长干行》的原文和译文,从内容、神韵、语气、格调、意象等方面入手,详细分析了庞德的创意英译.

  6. 洋革——CONVERSE JACK PURCELL LEATHER

    Institute of Scientific and Technical Information of China (English)

    Vincent

    2009-01-01

    看惯了的Jack Purcell,即使是有些变化.充其量也就是表面的图案创作有异.或者是材料应用方面上的变化。之前我们看过红格子的圣诞变奏版,这次就轮到这双。采用英国绅士洋服的概念为基调,以洋服上的条纹纹理为细节,配上英制高级皮革,黑、啡共两色,用来衬西装都颇为得体。

  7. Jack-o’-lantern(杰克灯)

    Institute of Scientific and Technical Information of China (English)

    霍秀梅

    2015-01-01

    "杰克灯"(Jack-o’-lantern)也叫南瓜灯,是万圣节的重要道具。人们制作的南瓜灯通常都有一双邪恶的眼睛和一张大嘴,并且从中透出飘忽不定的烛光。它的做法也极为简单。将南瓜(pumpkin)掏空,然后在外面刻上笑眯眯的眼睛和大嘴巴,再在瓜中插上一支蜡烛(candle),把它点燃。

  8. 3-D habitat suitability of jack mackerel Trachurus murphyi in the Southeastern Pacific, a comprehensive study

    Science.gov (United States)

    Bertrand, Arnaud; Habasque, Jérémie; Hattab, Tarek; Hintzen, Niels T.; Oliveros-Ramos, Ricardo; Gutiérrez, Mariano; Demarcq, Hervé; Gerlotto, François

    2016-08-01

    South Pacific jack mackerel, Trachurus murphyi, has an ocean-scale distribution, from the South American coastline to New Zealand and Tasmania. This fish, captured by Humans since the Holocene, is nowadays heavily exploited and its population has decreased substantially since the mid-1990s. The uncertainty associated to jack mackerel population structure currently hampers management. Several hypotheses have been proposed from a single population up to several discrete populations. Still no definitive answer was given. Determining how environmental conditions drive jack mackerel distribution can provide insights on its population structure. To do so, here we performed in three steps. First, we used satellite data to develop a statistical model of jack mackerel horizontal habitat suitability. Model predictions based on interaction between temperature and chlorophyll-a match the observed jack mackerel distribution, even during extreme El Niño event. Second, we studied the impact of oxygen and show that jack mackerel distribution and abundance is correlated to oxygen over a wide variety of scales and avoid low oxygen areas and periods. Third, on the basis of the above we built a conceptual 3D model of jack mackerel habitat in the Southeastern Pacific. We reveal the presence of a low suitable habitat along the Chilean and Peruvian coast, figuratively presenting a closed door caused by a gap in the horizontal habitat at ∼19-22°S and a shallow oxycline off south-centre Peru. This kind of situation likely occurs on a seasonal basis, in austral summer but also at longer temporal scales. A lack of exchanges at some periods/seasons partially isolate jack mackerel distributed off Peru. On the other hand the continuity in the habitat during most of the year explains why exchanges occur. We conclude that the more likely population structure for jack mackerel is a pelagic metapopulation.

  9. The Aesthetic Presentation of Economic Theme in Ezra Pound's Cantos%庞德《诗章》经济主题的美学呈现

    Institute of Scientific and Technical Information of China (English)

    朱伊革

    2011-01-01

    Under the influence of C. H. Douglas's Social Credit, Ezra Pound became enthusiastic about economics. The economic and political themes are obviously presented in his Cantos. In these cantos Pound probes into the causes of wars and the economic crisis and questions the nature of money and value through his presentation of the economists past and present and through the employment of the contrastive structure and anecdotes. Showing a strong sense of humanism, Pound's Cantos speaks out a more balanced aesthetics that contains both the moments frozen in time and temporal changes through history.%在道格拉斯信用论的影响下,庞德对经济产生了浓厚的兴趣,1920—1940年创作的《诗章》表现出明显的经济和政治主题。庞德通过经济主题人物、对立结构、轶事和闲聊等艺术手法探究战争、经济危机产生的根源,追问货币、价值的本质,超越了早期静态的意象主义和间接的人物面具等表现手法,以更加平衡的美学方式表现出凝固的瞬间和历史变化的有机结合,体现出诗人炽烈的人文关怀精神。

  10. Light in the Poetry of Modernists. ŚWIATŁOWSTĄPIENIE by Tymoteusz Karpowicz and the Fragments of The Pisan Cantos by Ezra Pound

    Directory of Open Access Journals (Sweden)

    Karolina Górniak

    2014-01-01

    Full Text Available The aim of this article was to present a comparative interpretation of the selected poems by Tymoteusz Karpowicz (the poem alfaŚWIATŁOWSTĄPIENIE and a few accompanying poems and Ezra Pound (The Cantos: LXXX, LXXXI and LXXXIII. The texts have been selected because of the theme of light, sun and visual perception. The comparative method is supposed to show 20th-century Polish poetry in the context of Anglo-American modernism. The relationship between the two poets seems to be hypothetical and one-sided. It has not been established so far whether the writings of Karpowicz were inspired by Pound’s texts. Thus, the article realized a model of contactless, comparative literary study, where comparisons are made on the basis of a typologic relationship. The first part of the article presented the theme of light in some non-poetic texts by Karpowicz and Pound and in their conception of art. The next two parts focus on the interpretation of poetry. The last chapter contained the conclusions drawn from the comparative analysis of chosen texts. The motif of light became not only a link between the selected poems, but also a reason for the comparison of the poetical techniques, specificity of style and the functions of linguistic experiments. The philosophical, Biblical, literary and even scientific contexts were evoked. A theoretical background was represented by the notion of reading/interpretation by Wolfgang Iser, transtextuality by Gérard Genette and the category of a model reader by Umberto Eco. The literary projects of Karpowicz and Pound impel readers to consider several issues. The most significant are: the limits of interpretation, obscurity or inexplicability of modern poetry and the problems of literary communication.

  11. An Analysis of the Structure of Ezra Pound' s The Cantos%庞德《诗章》结构研究述评

    Institute of Scientific and Technical Information of China (English)

    蒋洪新

    2012-01-01

    The Cantos by Ezra Pound is a difficult and ambiguous modern poem, which has aroused many studies in different perspectives. It has been a controversial issue for a long time on whether there is a unified structure in The Cantos or not. This article, based on many studies about the issue, presents an analysis of The Cantos' structure. It traces back the forming process of The Cantos, and explores Pound' s ways of constructing The Cantos. Meanwhile it presents a review of different ideas on the structure in The Cantos. It concludes that The Cantos is a very im- portant modern poem, no matter whether there is a unified structure in it or not.%庞德的《诗章》是一部晦涩难懂的现代诗,学界已有许多著作从不同的方面研究它。关于《诗章》是否有统一的结构,学界中一直存在争议。本文在参阅众多研究成果的基础上,对这部诗歌结构的研究进行分析。文中追索《诗章》的形成过程,对《诗章》的谋篇布局以及写作提出看法,就《诗章》的结构统一性的不同观点进行分析,最后提出无论《诗章》是否有统一结构都不失为一部重要的现代诗。

  12. The age of reinvented empire(s in Africa in the light of Persian hegemonic power: Reading the books of Deuteronomy and Ezra-Nehemiah in the context of Zimbabwe

    Directory of Open Access Journals (Sweden)

    Ndikho Mtshiselwa

    2015-03-01

    Full Text Available It is generally accepted that historically Africa experienced colonialism. Thus, in the neocolonial age articulated by the likes of Sugirtharajah, Segovia and Nkrumah, most African countries are faced with the challenge of power struggle in which imperialism and dictatorship inhibits the development of the Two-Thirds world countries. This challenge, it is argued, reveals an imperialistic tendency of the European Union, China and African government(s to alter democracy and freedom. As such, the Zimbabwe context, amongst others, will be used as a main point of reference. This article examines the elements of imperialism in African states in the light of Persian hegemonic power in the books of Deuteronomy and Ezra-Nehemiah. It investigates whether or not the Jews were free under the Persian hegemonic influence in the post-exilic period. The comparison of the influence of Persian hegemony in the books of Deuteronomy and Ezra-Nehemiah with the evidence of imperialism in African government(s, leads to the argument that certain African states do not appear to be completely democratic and free.Intradisciplinary and interdisciplinary implications: Based on aspects of Old Testament and political science studies, this article explores traces of imperialism in African governments in the light of Persian hegemonic power in the Hebrew Bible. In the end, the article argues that certain African states, for instance Zimbabwe, should not be considered as completely democratic and free nations.

  13. Léon Lederman, Mel Schwartz and Jack Steinberger wre awarded the 1988 Nobel Physics Prize.

    CERN Multimedia

    Photographic Service

    1988-01-01

    Léon Lederman (left), Mel Schwartz (right) and Jack Steinberger were awarded the 1988 Nobel Physics Prize for their 1962 experiment at Brookhaven which showed that neutrinos come in more than one kind.

  14. The super-Virasoro singular vectors and Jack superpolynomials relationship revisited

    Science.gov (United States)

    Blondeau-Fournier, O.; Mathieu, P.; Ridout, D.; Wood, S.

    2016-12-01

    A recent novel derivation of the representation of Virasoro singular vectors in terms of Jack polynomials is extended to the supersymmetric case. The resulting expression of a generic super-Virasoro singular vector is given in terms of a simple differential operator (whose form is characteristic of the sector, Neveu-Schwarz or Ramond) acting on a Jack superpolynomial. The latter is indexed by a superpartition depending upon the two integers r , s that specify the reducible module under consideration. The corresponding singular vector (at grade rs / 2), when expanded as a linear combination of Jack superpolynomials, results in an expression that (in addition to being proved) turns out to be more compact than those that have been previously conjectured. As an aside, in relation with the differential operator alluded to above, a remarkable property of the Jack superpolynomials at α = - 3 is pointed out.

  15. Teistsugune vaade juhtide tasustamisele / Jack Welch, Suzy Welch ; intervjueerinud Stefan Eiselin

    Index Scriptorium Estoniae

    Welch, Jack

    2010-01-01

    USA juhtimisspetsialistide Jack ja Suzy Welchi hinnangul võib tippjuhtidele makstava palga ümber kerkinud poleemika üks võimalikke põhjuseid lisaks halvale kommunikatsioonile olla ka ideoloogiate kokkusobimatus

  16. Application of ANSYS 3D FEM in Studies of Surface Deformation Caused by Pipe Jacking

    Institute of Scientific and Technical Information of China (English)

    LI Fabin; FANG Kun; LI Hechao

    2007-01-01

    By using site observation data and establishing 3D model using ANSYS software, this paper has discussed the strain change of stratum stress during process of jacking-in and the impact of machine head on ground surface under different frontal resistances. Analysis of the two cases shows that soil pressure reaches its maximum point when the soil is right above machine head, and soil stress will gradually decline when machine head passes over it. It also shows that impact brought by pipe-jacking construction on stress change of the surrounding soil is limited. The thesis suggest that road surface should be consolidated and soil condition be improved before construction to prevent loss and disaster caused by road surface deformation, jacking force can be increased so that jacking efficiency can be enhanced when ground stratum is well filled with soil, but the frontal resistance facing machine head should be equal to surrounding soil pressure in order to avoid rise of ground surface.

  17. Students Learning Physics While Lifting Themselves: A Simple Analysis of a Scissors Jack

    Science.gov (United States)

    Haugland, Ole Anton

    2017-02-01

    Every time I have to jack up my car, I am a bit surprised by how slowly the scissors jack works the higher I raise it, and close to maximum height I need very little force to turn the crank. This agrees well with the principle of simple machines. Since I have to jack up my car at least twice a year to change between winter tires and summer tires, I thought it was time to take a closer look at the physics behind the process. And like most physics teachers, I am always looking for new ideas for my teaching. In this note I will present a few ideas on how a jack can be a topic in physics teaching.

  18. TOPOLOGICAL STRUCTURE AND MOBILITY OF THE MECHANISMS USED IN CAR MECHANICAL JACKS

    Directory of Open Access Journals (Sweden)

    Viorica VELIȘCU

    2015-05-01

    Full Text Available This paper presents a structural analysis of the mechanism of high topological type jack - screw and translator rectilinear- patina and mobility mechanism analysis using various generally applicable formulas.

  19. Teistsugune vaade juhtide tasustamisele / Jack Welch, Suzy Welch ; intervjueerinud Stefan Eiselin

    Index Scriptorium Estoniae

    Welch, Jack

    2010-01-01

    USA juhtimisspetsialistide Jack ja Suzy Welchi hinnangul võib tippjuhtidele makstava palga ümber kerkinud poleemika üks võimalikke põhjuseid lisaks halvale kommunikatsioonile olla ka ideoloogiate kokkusobimatus

  20. A probabilistic tool for geotechnical assessment of Jack-Up leg penetration

    NARCIS (Netherlands)

    Vrouwenvelder, A.C.W.M.; Wal, T. van der; Bouwmeester, D.; Peuchen, J.; Baars, S. van; Lagers, G.H.G.

    2007-01-01

    Prediction of jack-up leg penetration behaviour requires assessment of uncertainties in calculation models and their input parameter values, including quality and extent of site investigation information. Commonly, uncertainty assessment is achieved by sensitivity analysis. This publication presents

  1. Modeling of the jack rabbit series of experiments with a temperature based reactive burn model

    Science.gov (United States)

    Desbiens, Nicolas

    2017-01-01

    The Jack Rabbit experiments, performed by Lawrence Livermore National Laboratory, focus on detonation wave corner turning and shock desensitization. Indeed, while important for safety or charge design, the behaviour of explosives in these regimes is poorly understood. In this paper, our temperature based reactive burn model is calibrated for LX-17 and compared to the Jack Rabbit data. It is shown that our model can reproduce the corner turning and shock desensitization behaviour of four out of the five experiments.

  2. The hydraulic performance and structural integrity of A-Jack armour layer

    Institute of Scientific and Technical Information of China (English)

    William G.McDougal

    2010-01-01

    A-Jacks are concrete armor units that are used in both open channel and coastal applications.In open channel applications,they are used for bank and toe protection,flow and grade control,bridge pier scour protection,energy dissipation,and habitat.These small units may be fabricated in standard block machines.In coastal applications,A-Jacks are used in breakwaters,jetties,revetments,and habitat development.Coastal units are generally much larger and more robust than the small open channel units.This paper focuses on coastal applications and in particular,combines results on three topics: (1) recent hydraulic model studies, (2) ahemative fabrication methods,and(3) bundle placement construction methods.Hydraulic models studies were conducted that examined the standard random and uniform placement methods, and also the bundle placement method.In bundle placement, 3~20 A-Jacks are banded together,lifted with a spreader bar, and placed as a single crone pick.This significantly decreases installation time during construction.It also provides a more hydraulically stable placement technique.The hydraulic model tests examined the bundle stability fn random waves for cases where the binding remains in tack and is removed.The geometry of A-Jacks enables a variety of fabrication techniques.One option is to fabricate the A-Jacks as two pieces using flat forms and then grout the two pieces together.Flat forms may be used in conventional block machines for A-Jacks sizes up to 1.3 re.Larger sizes may be wet cast in flat forms or gang forms.The A-Jacks geometry has been recently modified to increase grouting efficient and strength.Large A-Jacks may also be east in a single piece using "clam shell" type forms.

  3. JackEx: The new digital manufacturing resource for optimization of Exoskeleton-based factory environments

    OpenAIRE

    Constantinescu, Carmen; Mureșan, Paul Cristian; Simon, Gabriel-Marian

    2016-01-01

    The employment of Exoskeletons for manual handling work in manufacturing industries aims at increased employment, productivity, safety and security at workplace. This paper highlights several challenges, current results and future steps of our work in optimization of Exoskeleton based factory environments. “JackEx” is the enhancement of the standard digital humanoid “Jack” with concepts and elements of passive Exoskeletons. For the development of JackEx, a new digital manufacturing resource, ...

  4. Jack Rabbit Pretest Data For TATB Based IHE Model Development

    Energy Technology Data Exchange (ETDEWEB)

    Hart, M M; Strand, O T; Bosson, S T

    2008-06-18

    The Jack Rabbit Pretest series consisted of 5 focused hydrodynamic experiments, 2021E PT3, PT4, PT5, PT6, and PT7. They were fired in March and April of 2008 at the Contained Firing Facility, Site 300, Lawrence Livermore National Laboratory, Livermore, California. These experiments measured dead-zone formation and impulse gradients created during the detonation of TATB based insensitive high explosive. This document contains reference data tables for all 5 experiments. These data tables include: (1) Measured laser velocimetry of the experiment diagnostic plate (2) Computed diagnostic plate profile contours through velocity integration (3) Computed center axis pressures through velocity differentiation. All times are in microseconds, referenced from detonator circuit current start. All dimensions are in millimeters. Schematic axi-symmetric cross sections are shown for each experiment. These schematics detail the materials used and dimensions of the experiment and component parts. This should allow anyone wanting to evaluate their TATB based insensitive high explosive detonation model against experiment. These data are particularly relevant in examining reactive flow detonation model prediction in computational simulation of dead-zone formation and resulting impulse gradients produced by detonating TATB based explosive.

  5. Irreversible inhibition of jack bean urease by pyrocatechol.

    Science.gov (United States)

    Kot, Mirosława; Zaborska, Wiesława

    2003-10-01

    Pyrocatechol was studied as an inhibitor of jack bean urease in 20 mM phosphate buffer, pH 7.0, 25 degrees C. The inhibition was monitored by an incubation procedure in the absence of substrate and reaction progress studies in the presence of substrate. It was found that pyrocatechol acted as a time- and concentration dependent irreversible inactivator of urease. The dependence of the residual activity of urease on the incubation time showed that the rate of inhibition increased with time until there was total loss of enzyme activity. The inactivation process followed a non-pseudo-first order reaction. The obtained reaction progress curves were found to be time-dependent. The plots showed that the rate of the enzyme reaction in the final stages reached zero. From protection experiments it appeared that thiol-compounds such as L-cysteine, 2-mercaptoethanol and dithiothreitol prevented urease from pyrocatechol inactivation as well as the substrate, urea, and the competitive inhibitor boric acid. These results proved that the urease active site was involved in the pyrocatechol inactivation.

  6. Jack Mosby en la revuelta de 1911 en Baja California

    Directory of Open Access Journals (Sweden)

    Lawrence Douglas Taylor

    2000-01-01

    Full Text Available En el presente artículo se analiza el papel que desempeñó el estadounidense John R. Mosby, conocido popularmente como Jack Mosby, en la revuelta de 1911 en Baja California encabezada por Ricardo Flores Magón y el Partido Liberal Mexicano. Mosby fue uno de los personajes más interesantes y controvertidos de esta campaña. Militar de profesión, también era miembro de los Industrial Workers of the World (Trabajadores Industriales del Mundo , una organización laboral radical de Estados Unidos que contribuyó a la defensa legal de los miembros de la junta dirigente del P L M, acusados por las autoridades estadounidenses de haber violado las leyes de neutralidad. Se examina la postura de Mosby a lo largo de la lucha, incluyendo las raíces de su apoyo entre los hombres de la Segunda División de los grupos armados liberales en la Baja California, su decisión de sostener los principios de Ricardo Flores Magón y del P L M, así como su determinación de continuar la lucha en la región aun cuando la derrota era casi inevitable.

  7. Study of Movement Reliability for Hoisting Jack under a Rocket Launcher Vehicle%Study of Movement Reliability for Hoisting Jack under a Rocket Launcher Vehicle

    Institute of Scientific and Technical Information of China (English)

    LI Ye-nong; PENG Shu-hua; ZHANG Li-ping; SHI Zhu-kang

    2011-01-01

    The transmission mechanism of a jack is required to support the combat vehicle reliably within a very short time. So reliability research is very important because the mechanism completes motions required under the conditions within limited time. If the transmission mechanism of the jack supports the rocket launcher steadily, it needs to go through several stages as follows : unlocking, starting, operating, braking, stopping, fixing position and locking. The transmission mechanism of the jack is a complicated and single degree of freedom mechanical system; it can be considered an imaginary mechanical model that has an equivalent moment of inertia and equivalent torque. According to the characteristics of each supporting stages, dynamics equations of the mechanism are established. At the stages of starting and operating, a driving moment and resistance moment are dealt with for a Normal distribution. The design principles for movement reliability of completing action are established and the design principles for time reliability of completing action within a limited time are established. Finally, movement reliability of the transmission mechanism of the jack is 0. 9 852, according to our calculation. Reliability of time to complete action is 0. 9 943.

  8. Additive and non-additive genetic components of the jack male life history in Chinook salmon (Oncorhynchus tshawytscha).

    Science.gov (United States)

    Forest, Adriana R; Semeniuk, Christina A D; Heath, Daniel D; Pitcher, Trevor E

    2016-08-01

    Chinook salmon, Oncorhynchus tshawytscha, exhibit alternative reproductive tactics (ARTs) where males exist in two phenotypes: large "hooknose" males and smaller "jacks" that reach sexual maturity after only 1 year in seawater. The mechanisms that determine "jacking rate"-the rate at which males precociously sexually mature-are known to involve both genetics and differential growth rates, where individuals that become jacks exhibit higher growth earlier in life. The additive genetic components have been studied and it is known that jack sires produce significantly more jack offspring than hooknose sires, and vice versa. The current study was the first to investigate both additive and non-additive genetic components underlying jacking through the use of a full-factorial breeding design using all hooknose sires. The effect of dams and sires descendant from a marker-assisted broodstock program that identified "high performance" and "low performance" lines using growth- and survival-related gene markers was also studied. Finally, the relative growth of jack, hooknose, and female offspring was examined. No significant dam, sire, or interaction effects were observed in this study, and the maternal, additive, and non-additive components underlying jacking were small. Differences in jacking rates in this study were determined by dam performance line, where dams that originated from the low performance line produced significantly more jacks. Jack offspring in this study had a significantly larger body size than both hooknose males and females starting 1 year post-fertilization. This study provides novel information regarding the genetic architecture underlying ARTs in Chinook salmon that could have implications for the aquaculture industry, where jacks are not favoured due to their small body size and poor flesh quality.

  9. Investigation of jack-up leg extension for deep water operations

    Directory of Open Access Journals (Sweden)

    Yousri M.A. Welaya

    2015-03-01

    Full Text Available Since the first jack-up was built, jackups have become the most popular type of mobile offshore drilling unit (MODU for offshore exploration and development purposes in shallow water. The most pivotal component of the jack-up unit is the leg, which can directly affect the global performance of the unit. In this paper, an investigation into extending the length of the jack up leg is carried out in order to study the enhancement of the rig capability to drill in deeper water approaching the range of the Semisubmersible Drilling Unit (SSDU (300-1000ft. A study of the performance of a deep-water jack-up unit is performed with different leg lengths. Typical leg scantling dimensions and identical external loads are assigned, and then a detailed Finite Element Analysis (FEA model is created in order to simulate the jack-up leg unit’s structural behavior. A Multi-point Constraint (MPC element together with the spring element is used to deal with the boundary conditions. Finally, a comparative analysis for five leg lengths is carried out to illustrate their performance, including the ultimate static strength, and weight.

  10. Assessment of the mechanical properties of brick masonry by a flat-jack method

    Directory of Open Access Journals (Sweden)

    S.V. Zubkov

    2015-12-01

    Full Text Available The modern Russian methods for defining the mechanical characteristics of brick masonry are based on finding the strength of masonry components (brick and mortar. After getting the results of laboratory tests of components, mechanical characteristics of masonry are calculated using empirical formulae. Those formulae, however, cannot take into consideration the presence of damages and other factors. Obtaining the characteristics (strength and deformation by a direct flat-jack test of masonry fragments on-site looks promising. A widespread use of FEM requires setting accurate deformation features for modeling domes, arches and thin brick outside layer in multilayer walls. Also accurate deformation characteristics are used for calculating temperature loads. The paper gives the results of practical use for the masonry deformation research by the flat-jack test method. The correlation factors are defined and rigidness coefficients of flat-jacks are obtained in the study.

  11. Rapid communication: experimental evidence that juvenile pelagic jacks (Carangidae) respond behaviorally to DMSP.

    Science.gov (United States)

    Debose, Jennifer L; Nevitt, Gabrielle A; Dittman, Andrew H

    2010-03-01

    Dimethylsulfoniopropionate (DMSP) is produced by marine algae and released during foraging activity by zooplankton and fish. Pelagic fishes depend on patchily distributed foraging opportunities, and DMSP may be an important signaling molecule for these events. We have previously shown that the abundance of carangid jacks is positively associated with elevated DMSP levels over coral reefs in the Gulf of Mexico, suggesting that these fishes may use spatial and temporal variation in DMSP to locate foraging opportunities. Here, we extend this work by demonstrating that juveniles of two species of pelagic jack, crevalle jack, Caranx hippos, and bluefin trevally, C. melampygus, detect and respond to DMSP in a flow-through tank in the laboratory. Juveniles of these species showed elevated swimming activity in response to ecologically relevant concentrations of DMSP (10(-9) M). These results provide further evidence that this chemical may serve as a chemosensory cue for carangid species.

  12. Variable amplitude corrosion fatigue and fracture mechanics of weldable high strength jack-up steels

    Science.gov (United States)

    Etube, Linus Sone

    The tubular welded joints used in the construction of Offshore structures can experience millions of variable amplitude wave induced stress cycles during their operational life. Fatigue has been identified as the main cause of degradation of structural integrity in these structures. As a result, fatigue is an important consideration in their design. Jack-up legs are made from a range of high strength steels with yield strengths up to TOOMPa. These steels are thought to exhibit fatigue resistance properties which are different when compared with conventional fixed platform steels such as BS 4360 50D and BS 7191 355D. The difference in their behaviour was heightened by the discovery, in the late 80s and early 90s, of extensive cracking around the spud can regions of several Jack-ups operating in the North Sea. It was thought that these steels may be more susceptible to hydrogen cracking and embrittlement. There was the additional requirement to study their behaviour under realistic loading conditions typical of the North Sea environment. This thesis contains results of an investigation undertaken to assess the performance of a typical high strength weldable Jack-up steel under realistic loading and environmental conditions. Details of the methodology employed to develop a typical Jack-up Offshore Standard load History (JOSH) are presented. The factors which influence fatigue resistance of structural steels used in the construction of Jack-up structures are highlighted. The methods used to model the relevant factors for inclusion in JOSH are presented with particular emphasis on loading and structural response interaction. Results and details of experimental variable amplitude corrosion fatigue (VACF) tests conducted using JOSH are reported and discussed with respect to crack growth mechanisms in high strength weldable Jack-up steels. Different fracture mechanics models for VACF crack growth prediction are compared and an improved generalised methodology for fast

  13. Solar drying of jack fruit almonds Secagem solar de amêndoas de jaca

    OpenAIRE

    Alexandre J. de M. Queiroz; Dantas,Hermeval J; Figueirêdo,Rossana M. F. de; Karla dos S Melo

    2011-01-01

    Dryers heated by solar energy have been constructed and used in drying whole and half jack fruit almonds. The samples were dried during the day in direct sun and in the conventional solar dryer prepared for this purpose. Another piece of equipment was built for reception and accumulation of sun energy in a body of water, which was used as a heat source for night drying. The drying with the sun energy was compared with artificial drying. The jack fruit almonds were dried whole, half, with pell...

  14. Structure and biomass production of one- to seven-year-old intensively cultured jack pine plantation in Wisconsin.

    Science.gov (United States)

    J. Zavitkovski; David H. Dawson

    1978-01-01

    Spacing and rotation length effects were studied for 7 years in intensively cultured jack pine stands. Production culminated at age 5 in the densest planting and progressively later in more open spacing. Biomass production was two to several times higher than in jack pine plantations grown under traditional silvicultural systems.

  15. Experiment-based relations between level ice loads and managed ice loads on an Artic jack-up structure

    NARCIS (Netherlands)

    Hoving, J.S.; Vermeulen, R.; Mesu, A.W.; Cammaert, A.B.

    2013-01-01

    Jack-ups have been constructed for numerous ocean environments, but to date there has been no operating experience under Arctic sea ice conditions. The current state of jack-up technology does not allow working outside the ice-free season and thus ice management will be needed to extend the drilling

  16. Experiment-based relations between level ice loads and managed ice loads on an Artic jack-up structure

    NARCIS (Netherlands)

    Hoving, J.S.; Vermeulen, R.; Mesu, A.W.; Cammaert, A.B.

    2013-01-01

    Jack-ups have been constructed for numerous ocean environments, but to date there has been no operating experience under Arctic sea ice conditions. The current state of jack-up technology does not allow working outside the ice-free season and thus ice management will be needed to extend the drilling

  17. Estudo da impressão plantar obtida durante o teste de Jack em crianças Footprint study in children during the Jack test

    Directory of Open Access Journals (Sweden)

    José Antonio Pinto

    2011-01-01

    Full Text Available OBJETIVO: Avaliar as impressões plantares durante o teste de Jack em crianças quantificando e observando os resultados numa faixa etária crítica para a formação do arco plantar. MÉTODO: Avaliamos 60 crianças brancas (120 pés sendo 35 meninos e 25 meninas com idades entre 2 e 5 anos, sem queixas ortopédicas. Simulamos o teste de Jack com uma órtese em cunha de 45º apoiada sob o hálux. Obtivemos impressões em apoio monopodálico bilateralmente utilizando um pedígrafo. O exame dividiu-se em duas etapas: com e sem o uso da órtese. A metodologia de Valenti e Volpon foi utilizada para mensurar as impressões plantares e os dados obtidos foram analisados estatisticamente. RESULTADOS: Os valores dos índices de Valenti e Volpon diminuiram quando a órtese foi utilizada. A diferença entre os índices com ou sem órtese diminuiu gradualmente com a progressão etária. CONCLUSÕES: É possível quantificar o teste de Jack pelwas impressões plantares pelo método de Valenti e Volpon. A variação do seu formato apresentou tendência a ser menor a partir dos 4 anos. O teste de Jack perdeu gradativamente a capacidade de modificar a impressão plantar com a idade, diminuindo sua acuidade como parâmetro de bom prognóstico na formação do arco longitudinal medial. Nível de Evidência: Nível IV, estudo descritivo observacional.OBJECTIVE: To assess the plantar impressions obtained in children during the Jack test, with the aim of quantifying and analyzing their variability in the critical period for plantar foot arch formation. METHOD: A hundred and twenty feet from 60 healthy White children, recruited in an outpatient pediatric clinic, were examined. Our sample included 35 boys and 25 girls, ranging from 2 to 5 years. The Jack test was simulated using a 45o wedge-shaped orthosis applied to the hallux. Bilateral plantar impressions were acquired in the alternate single-foot standing position using a pedigraph. Two plantar impressions were

  18. Analisis Integritas Struktur Kaki Jack-up yang Mengalami Retak dengan Pendekatan Ultimate Strength; Studi Kasus Jack-up Maleo MOPU (Mobile Offshore Production Unit

    Directory of Open Access Journals (Sweden)

    Alit Winiscoyo

    2013-03-01

    Full Text Available Jack-up adalah suatu struktur bangunan lepas pantai yang terdiri dari lambung (hull, kaki (legs, dan suatu sistem jacking sehingga memungkinkan untuk dipindahkan dari satu lokasi ke lokasi yang lain. Pada penelitian ini akan dilakukan studi kasus struktur Maleo MOPU (Mobile Offshore Production Unit yang dioperasikan oleh SANTOS (Madura Pty.Ltd. yang beroperasi di Selat Madura blok Maleo dengan kedalaman perairan di lokasi ini adalah 57 m terhadap MSL (Mean Sea Level. Studi kasus ini dilakukan karena ditemukan indikator retak lelah/damage pada sambungan antara kaki jack-up dan mudmat. Analisis ultimate strength akan dilakukan untuk mengetahui integritas struktur terhadap beban maksimal . Variasi dead load, live load dan environmental load menjadi tahapan penting dalam analisa ini untuk mengetahui tingkat integritas struktur. Dengan pengaruh variasi beban (dead load dan live load terhadap struktur untuk tiap-tiap kasus didapatkan nilai unity check (UC yang dari semua kasus dikategorikan aman karena tidak ada nilai UC yang melebihi 1,3 (API RP 2A WSD. Dari semua analisis yang dilakukan dead load lebih berpengaruh dibandingkan dengan live load. Dari analisis pushover yang telah dilakukan pada jack-up Maleo MOPU yang dimitigasi dengan menambahkan brace dan menambahkan ketebalan dihasilkan nilai Reserve Strength Ratio (RSR terkecil pada arah pembebanan 2700 dengan nilai 6,5 pada Brace Clamp case dan terbesar dengan nilai 18,3 pada X-Bracing case. Nilai RSR tersebut masih memenuhi syarat yang telah ditetapkan API RP 2A berupa nilai RSR minimal untuk platform berpenghuni adalah 1,6.  

  19. 用“笑”支持慈善CONVERSE JACK PURCELL (PRODUCT) RED X

    Institute of Scientific and Technical Information of China (English)

    淡茶清香

    2007-01-01

    JACK PURCELL鞋款来自20世纪活跃于加拿大羽毛球坛的世界冠军Jack Purcell,因为羽毛球、网球和壁球等运动中穿着的运动鞋,需要具备相应的耐用度和舒适度。Jack Purcell开始了对球鞋的研究与改良,并参与了JACK PURCELL的研制策划,为了纪念其贡献,最终这款运动鞋以他的名字命名。身为CONVERSE经典帆布鞋款之一,JACK PURCELL因其鞋头特殊的Smile曲线设计而享有盛名。喜欢它的朋友都会亲切的昵称它为“开口笑”。

  20. Impacts of fiber orientation and milling on observed crystallinity in jack pine

    Science.gov (United States)

    Umesh P. Agarwal; Sally A. Ralph; Richard S. Reiner; Roderquita K. Moore; Carlos Baez

    2014-01-01

    Influences of fiber orientation and milling on wood cellulose crystallinity were studied using jack pine wood. The fiber orientation effects were measured by sampling rectangular wood blocks in radial, tangential, and cross-sectional orientations. The influence of milling was studied by analyzing the unsieved and sieved milled wood fractions (all

  1. Uus valem otsustamiseks: 10-10-10 / Jack Welch, Suzy Welch

    Index Scriptorium Estoniae

    Welch, Jack

    2009-01-01

    Juhtimisspetsialistid Jack ja Suzy Welch tutvustavad enda loodud valemit 10-10-10, mis on elu juhtimise tööriist aitamaks langetada raskeid otsuseid, hinnates nende mõju 10 minuti, 10 kuu ja 10 aasta pärast

  2. Jack Mezirow's Conceptualisation of Adult Transformative Learning: A Review

    Science.gov (United States)

    Calleja, Colin

    2014-01-01

    This paper traces the evolution of Jack Mezirow's transformative learning theory and its conceptualisation. It discusses the three major influences, namely Thomas Khun's philosophical conception of paradigm, Freire's conception of conscientisation and consciousness growth, and Habermas' domains of learning and the discussion of…

  3. The House That Jack Built: Neoliberalism, Teaching in Higher Education and the Moral Objections

    Science.gov (United States)

    Ingleby, Ewan

    2015-01-01

    The cumulative tale "the house that Jack built" is used as an analogy for flawed theories. This paper considers how the marketisation of higher education in neoliberal countries like England is affecting teaching and learning in Higher Education Institutions. Neoliberal policy approaches resulting in the marketisation of higher education…

  4. 3-D habitat suitability of jack mackerel Trachurus murphyi in the Southeastern Pacific, a comprehensive study

    NARCIS (Netherlands)

    Bertrand, A.; Habasque, J.; Hattab, Tarek; Hintzen, N.T.; Ricardo, Oliveros Ramos; Gutierrez, M.; Demarcq, Herve; Gerlotto, F.

    2016-01-01

    South Pacific jack mackerel, Trachurus murphyi, has an ocean-scale distribution, from the South American coastline to New Zealand and Tasmania. This fish, captured by Humans since the Holocene, is nowadays heavily exploited and its population has decreased substantially since the mid-1990s. The unce

  5. Oregon spotted frog (Rana pretiosa) monitoring at Jack Creek 2015-2016

    Science.gov (United States)

    Adams, Michael J.; Pearl, Christopher A.; Mccreary, Brome; Galvan, Stephanie; Rowe, Jennifer

    2017-01-01

    This dataset contains information from mark-recapture and egg mass surveys conducted 2015-2016 by USGS as part of an ongoing Oregon spotted frog (Rana pretiosa) monitoring effort at Jack Creek, Klamath County, Oregon. Data consist of spotted frog counts aggregated by date, location, life stage, and sex, as well as data on environmental conditions at the time each survey.

  6. Cadmium accumulation by jack-bean and sorghum in hydroponic culture.

    Science.gov (United States)

    Francato Zancheta, Ariana Carramaschi; De Abreu, Cleide Aparecida; Zambrosi, Fernando César Bachiega; de Magalhães Erismann, Norma; Andrade Lagôa, Ana Maria Magalhães

    2015-01-01

    Among the technologies used to recuperate cadmium (Cd) contaminated soils, phytoextraction are particularly important, where the selection of suitable plants is critical to the success of the soil remediation. Thus, the objectives of this study were to evaluate the responses of jack-bean and sorghum to Cd supply and to quantify Cd accumulation by these species grown in hydroponic culture. The plants were subjected to 0, 15, 30, or 60 μmol Cd L(-1) in the nutrient solution, and gas exchange, plant growth and Cd accumulation were measured at 25 days after starting Cd treatments. The Cd supply severely reduced growth of shoots and roots in both species. In jack-bean, Cd decreased photosynthesis by 56-86%, stomatal conductance by 59-85% and transpiration by 48-80%. The concentrations and amounts of Cd accumulated in the plant tissues were proportional to the metal supply in the nutrient solution. Sorghum was more tolerant than jack-bean to Cd toxicity, but the latter showed a greater metal concentration and accumulation in the shoot. Therefore, jack-bean would be more suitable than sorghum for use in Cd phytoremediation programs based on phytoextraction.

  7. Uus valem otsustamiseks: 10-10-10 / Jack Welch, Suzy Welch

    Index Scriptorium Estoniae

    Welch, Jack

    2009-01-01

    Juhtimisspetsialistid Jack ja Suzy Welch tutvustavad enda loodud valemit 10-10-10, mis on elu juhtimise tööriist aitamaks langetada raskeid otsuseid, hinnates nende mõju 10 minuti, 10 kuu ja 10 aasta pärast

  8. "Delays and Vexation": Jack London and the Russo-Japanese War.

    Science.gov (United States)

    Sweeney, Michael S.

    1998-01-01

    Contributes to scholarship on journalism history and censorship by discussing Jack London's efforts as a war correspondent to cover the Russo-Japanese War in Korea and Manchuria in 1904. Focuses on the difficulties he encountered as a result of systematic and highly restrictive censorship by the Japanese. (SR)

  9. Antinociceptive and bioactivity of leaves of Murraya paniculata (L.) Jack, Rutaceae

    OpenAIRE

    Shazid Md. Sharker; Israt Jahan Shahid; Md. Hasanuzzaman

    2009-01-01

    The results of antinociceptive and toxicological studies on the ethanol extract of the leaves of Murraya paniculata (L.) Jack, Rutaceae, are reported. The extract (250 and 500 mg/kg dosages) was found to produce a profound antinociceptive activity in a dose dependent manner. The extract showed considerable brine shrimp toxicity (LD50 = 32 μg/mL).

  10. Preservation of blue-jack mackerel (Trachurus picturatus Bowdich) silage by chemical and fermentative acidification

    NARCIS (Netherlands)

    Enes Dapkevicius, M.L.N.; Nout, M.J.R.; Rombouts, F.M.; Houben, J.H.

    2007-01-01

    We compared acidified and lactic acid fermented silage approaches for the preservation of blue-jack mackerel. Silages acidified with formic and propionic acids had stable pH (3.8) and low (19 mg/g N) levels of volatile nitrogen compounds (total volatile basic nitrogen, TVBN), but relatively high (82

  11. Antinociceptive and bioactivity of leaves of Murraya paniculata (L. Jack, Rutaceae

    Directory of Open Access Journals (Sweden)

    Shazid Md. Sharker

    2009-09-01

    Full Text Available The results of antinociceptive and toxicological studies on the ethanol extract of the leaves of Murraya paniculata (L. Jack, Rutaceae, are reported. The extract (250 and 500 mg/kg dosages was found to produce a profound antinociceptive activity in a dose dependent manner. The extract showed considerable brine shrimp toxicity (LD50 = 32 μg/mL.

  12. development of u-channel screw jack for vegetable oil extraction

    African Journals Online (AJOL)

    HOD

    A U-channel screw jack for extracting vegetable oil was developed through design (with Solid works–Computer Aided. Design (CAD)) and ... content) and supercritical fluid extraction which is very expensive to ..... a e ar Reducer ” [J] Coal Mine.

  13. Take a Walk on the Wild Side, with Folk Artist Jack Barker.

    Science.gov (United States)

    Delacruz, Elizabeth Manley

    1999-01-01

    Discusses the life and artwork of Jack Barker who became a folk artist after running a local gas station in Essex, Illinois. Explains that art educators view student interactions with folk artists like Barker as valuable because these artists embody a creative spirit and a thirst for knowledge about materials and processes. (CMK)

  14. Habitat Preferences, Distribution Pattern, and Root Weight Estimation of Pasak Bumi (Eurycoma longifolia Jack.

    Directory of Open Access Journals (Sweden)

    Siti Masitoh Kartikawati

    2014-04-01

    Full Text Available Pasak bumi (Eurycoma longifolia Jack is one of non timber forest products with “indeterminate” conservation status and commercially traded in West Kalimantan. The research objective was to determine the potential of pasak bumi root per hectare and its ecological condition under natural habitat. Root weight of E. longifolia Jack was estimated using simple linear regression and exponential equation with stem diameter and height as independent variables. The results showed that the individual number of the population was 114 with the majority in seedling stage with 71 individuals (62.28%. The distribution was found in clumped pattern. Conditions of the habitat could be described as follows: daily average temperature of 25.6oC, daily average relative humidity of 73.6%, light intensity of 0.9 klx, and red-yellow podsolic soil with texture ranged from clay to sandy clay. The selected estimator model for E. longifolia Jack root weight used exponential equation with stem height as independent variable using the equation of Y= 21.99T0,010 and determination coefficient of 0.97. After height variable was added, the potential of E. longifolia Jack minimum root weight that could be harvested per hectare was 0.33 kg.

  15. Pandemic Fear and Literature: Observations from Jack London’s The Scarlet Plague

    Centers for Disease Control (CDC) Podcasts

    2014-11-18

    Sarah Gregory reads an abridged version of the essay, Pandemic Fear and Literature: Observations from Jack London’s The Scarlet Plague.  Created: 11/18/2014 by National Center for Emerging and Zoonotic Infectious Diseases (NCEZID).   Date Released: 11/20/2014.

  16. Jack Mezirow's Conceptualisation of Adult Transformative Learning: A Review

    Science.gov (United States)

    Calleja, Colin

    2014-01-01

    This paper traces the evolution of Jack Mezirow's transformative learning theory and its conceptualisation. It discusses the three major influences, namely Thomas Khun's philosophical conception of paradigm, Freire's conception of conscientisation and consciousness growth, and Habermas' domains of learning and the discussion of…

  17. Habitat Preferences, Distribution Pattern, and Root Weight Estimation of Pasak Bumi (Eurycoma longifolia Jack.

    Directory of Open Access Journals (Sweden)

    Siti Masitoh Kartikawati

    2014-04-01

    Full Text Available Pasak bumi (Eurycoma longifolia Jack is one of non timber forest products with “indeterminate” conservation status and commercially traded in West Kalimantan. The research objective was to determine the potential of pasak bumi root per hectare and its ecological condition under natural habitat. Root weight of E. longifolia Jack was estimated using simple linear regression and exponential equation with stem diameter and height as independent variables. The results showed that the individual number of the population was 114 with the majority in seedling stage with 71 individuals (62.28%. The distribution was found in clumped pattern. Conditions of the habitat could be described as follows: daily average temperature of 25.6oC, daily average relative humidity of 73.6%, light intensity of 0.9 klx, and red-yellow podsolic soil with texture ranged from clay to sandy clay. The selected estimator model for E. longifolia Jack root weight used exponential equation with stem height as independent variable using the equation of Y= 21.99T0,010 and determination coefficient of 0.97. After height variable was added, the potential of E. longifolia Jack minimum root weight that could be harvested per hectare was 0.33 kg.Keywords: Eurycoma longifolia, habitat preference, distribution pattern, root weight

  18. Jacks-of-all-trades? The effect of balanced skills on team performance

    NARCIS (Netherlands)

    Rosendahl Huber, L.; Sloof, R.; van Praag, M.

    2014-01-01

    Previous empirical studies have shown that solo entrepreneurs benefit from having balanced skills: Jacks-of-All-Trades (JATs) are better entrepreneurs than specialists are. Nowadays however, the majority of entrepreneurs start up and run ventures together in teams. In this paper we test whether the

  19. The Attraction of Schiehallion as Presented in a Lecture by Jack Brydone to a Fredericton Audience in 1856

    Science.gov (United States)

    Kennedy, J. E.

    1986-08-01

    The role of William Brydone Jack as a 19th-century interpreter of science is examined using the classical experiment of Nevil Maskelyne at Schiehallion as the background event and the basis for the development of this analysis.

  20. Eesti saab 2018. aasta Londoni raamatumessil erilise tähelepanu osaliseks / Jacks Thomas ; intervjueerinud Priit Hõbemägi

    Index Scriptorium Estoniae

    Thomas, Jacks

    2017-01-01

    Intervjuu Euroopa ühe suurima, Londoni raamatumessi direktori Jacks Thomasiga, kes külastas Tallinna, et teha ettevalmistusi järgmiseks aastaks, kui Eesti koos teiste Baltimaadega on messi peakülaline

  1. EAARL-B Topography-Big Thicket National Preserve: Neches Bottom and Jack Gore Baygall Unit, Texas, 2014

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — A first-surface topography Digital Elevation Model (DEM) mosaic for the Neches Bottom and Jack Gore Baygall Unit of Big Thicket National Preserve in Texas, was...

  2. EAARL-B Topography-Big Thicket National Preserve: Neches Bottom and Jack Gore Baygall Unit, Texas, 2014

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — A bare-earth topography Digital Elevation Model (DEM) mosaic for the Neches Bottom and Jack Gore Baygall Unit of Big Thicket National Preserve in Texas, was produced...

  3. EAARL-B Topography-Big Thicket National Preserve: Neches Bottom and Jack Gore Baygall Unit, Texas, 2014

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — A bare-earth topography Digital Elevation Model (DEM) mosaic for the Neches Bottom and Jack Gore Baygall Unit of Big Thicket National Preserve in Texas, was produced...

  4. Historical wildlife dynamics on Dugway Proving Ground: population and disease trends in jack rabbits over two decades. [Lepus californicus

    Energy Technology Data Exchange (ETDEWEB)

    Eberhardt, L.E.; Van Voris, P.

    1986-08-01

    In an effort to determine whether US Army activities on the Dugway Proving Ground (DPG) have had an impact on resident wildlife, intensive studies have been conducted on the biology and ecology of the black-tailed jack rabbit (Lepus californicus) since 1965. in addition, the incidence of endemic diseases in several species of resident wildlife on the DPG have been studied from the late 1950s through the mid-1970s. The objectives of this report are to: (1) compile and summarize the jack rabbit data and some of the disease information that is presently contained only in annual reports; (2) compare the DPG jack rabbit data to data available on other jack rabbit populations; and (3) analyze the data for unusual or unexplained fluctuations in population densities or in incidence of disease.

  5. EAARL-B Topography-Big Thicket National Preserve: Neches Bottom and Jack Gore Baygall Unit, Texas, 2014

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — A first-surface topography Digital Elevation Model (DEM) mosaic for the Neches Bottom and Jack Gore Baygall Unit of Big Thicket National Preserve in Texas, was...

  6. FUNCTIONAL REQUIREMENTS FOR STABILITY OF JACK UP DRILLING RIGS ON WORKING POSITION

    Directory of Open Access Journals (Sweden)

    Damir Zadravec

    2008-12-01

    Full Text Available Jack up drilling platforms are offshore drilling units composed by drilling rig situated on naval structure without self propelling device. Jack up drilling rigs are units used for drilling and completion of deep well bores in offshore oil and gas exploration industry or field development. By reaching the theoretical center of gravity and equilibrium while towing and balance of acting forces on the unit while operations on location ensures the stability and safe mode of operations of entire unit. Penetration of legs spud cans in sea bad produced by weight of unit and acting of preload force, depending on geotechnical characteristics, type and bearing capacity of sea bad, and taking in consideration working environmental forces which acts on unit (wind, waves, sea current, ice, snow ensures proper foundation, environmental forces balancing and safe mode of operations (the paper is published in Croatian.

  7. Extreme Response Predictions for Jack-up Units in Second Order Stochastic Waves by FORM

    DEFF Research Database (Denmark)

    Jensen, Jørgen Juncher; Capul, Julien

    2006-01-01

    An efficient procedure for derivation of mean outcrossing rates for non-linear wave-induced responses in stationary sea states is presented and applied to an analysis of the horizontal deck sway of a jack-up unit. The procedure is based on the theory of random vibrations and uses the first order...... reliability method (FORM) to estimate the most probable set of wave components in the ocean wave system that will lead to exceedance of a specific response level together with the associated mean outcrossing rate. The procedure bears some resemblance to the Constrained NewWave methodology, but is conceptually......-tic waves, not previously included in the analysis of jack-up units in stochastic seaways....

  8. JackIn Head: Immersive Visual Telepresence System with Omnidirectional Wearable Camera.

    Science.gov (United States)

    Kasahara, Shunichi; Nagai, Shohei; Rekimoto, Jun

    2017-03-01

    Sharing one's own immersive experience over the Internet is one of the ultimate goals of telepresence technology. In this paper, we present JackIn Head, a visual telepresence system featuring an omnidirectional wearable camera with image motion stabilization. Spherical omnidirectional video footage taken around the head of a local user is stabilized and then broadcast to others, allowing remote users to explore the immersive visual environment independently of the local user's head direction. We describe the system design of JackIn Head and report the evaluation results of real-time image stabilization and alleviation of cybersickness. Then, through an exploratory observation study, we investigate how individuals can remotely interact, communicate with, and assist each other with our system. We report our observation and analysis of inter-personal communication, demonstrating the effectiveness of our system in augmenting remote collaboration.

  9. Discussion on Key Points of Wind Load of Jack-up Unit

    Institute of Scientific and Technical Information of China (English)

    林一; 胡安康; 熊飞; 蒋玮

    2014-01-01

    The anti-overturning ability and structure safety of jack-up unit in in-place condition are often affected by environment loads, especially wind load. According to the MODU rule, the projected area method is used for calculating the wind load. However, the calculated results are conservative and not good for structure optimization design. In this paper, a 400 ft jack-up is studied as an example. Based on the wind tunnel test and numerical simulation method, some key points of wind load calculation, such as shielding effect, lift effect and shape coefficient of component, are discussed. The study shows that the points mentioned above, which are ignored in the MODU rule calculation, result in the conservative result.

  10. Analysis of the Reasons for Jack London ’s Disillusion

    Institute of Scientific and Technical Information of China (English)

    秦宏莉; 张玲

    2015-01-01

    Jack London is an outstanding realistic writer in the American modern times, creating 19 novels and 125 short stories. He came from a poor working class family. Through his hard work, he finally became a world famous writer. However ,he ended up with suicide of his 40-year-old life after his success. Jack betrayed his success in the way of death. This outcome is not only the end of life, but is also a negative to the empty life. What on earth is the meaning of life? This paper analyzes the reasons for Jack’s disillusion from the aspects of his family background, the era he lived, his experience, his education, his works and his outlook on life.

  11. Reliability of fixed and jack-up structures: a comparative study

    Energy Technology Data Exchange (ETDEWEB)

    Morandi, A.C.; Frieze, P.A. [MSL Engineering, Sunninghill, Ascot (United Kingdom); Birkinshaw, M. [Health and Safety Executive, London (United Kingdom); Smith, D.; Dixon, A.T. [Health and Safety Executive, Bootle (United Kingdom)

    1997-12-31

    This paper presents results of a comparison between the structural reliability of a jacket designed to the limit of API RP 2A-LRFD and of a jack-up designed to the limit of the SNAME T and R Bulletin 5-5A. Both platforms were assumed as operating in the same location and at the same water depth when evaluating metocean and geotechnical data. Component strength was evaluated on the basis of the latest ISO formulations and system strength was evaluated by pushover analysis using CAP/SeaStar. Reliability was evaluated using the Response Surface method. It was found that, for both platforms, failure probability at system level was about an order of magnitude smaller than at component level. The jack-up critical failure probabilities tended to be about an order of magnitude greater than the corresponding jacket results. (Author)

  12. Aphrodisiac evaluation in non-copulator male rats after chronic administration of Eurycoma longifolia Jack.

    Science.gov (United States)

    Ang, H H; Ngai, T H

    2001-08-01

    The aphrodisiac effect of Eurycoma longifolia Jack (0.5 g/kg) was evaluated in noncopulator male rats using an electrical cage. Fractions of E. longifolia Jack decreased the hesitation time of noncopulator male rats, throughout the investigation period. Furthermore, it possessed a transient increase in the percentage of the male rats responding to the right choice, more than 50% of the male rats scored "right choice" after 3 weeks post-treatment and the effect became more prominent after 8 weeks post-treatment (only 40-50% of the control male rats responded to the right choice) using the electrical copulation cage. Hence, this study lends further support to the use of the plant by indigenous populations as a traditional medicine for its aphrodisiac property.

  13. Radical Rebel or Conservative Apologist: An Analysis of the Divided Mind of Jack Kerouac

    OpenAIRE

    Kvisvik, Marianne

    2006-01-01

    This thesis is an analysis of Jack Kerouac s novels On the Road, The Subterraneans, and The Dharma Bums. The angle is Kerouac s ambiguity and his supposed influence on the countercultural movements of the sixties. Themes discussed are among others conformism, spirituality and religion, racial attitudes and sexual behaviours in Kerouac s novels, juxtaposed to the general attitudes of white middle-class society of his time.

  14. Variable amplitude corrosion fatigue and fracture mechanics of weldable high strength jack-up steels

    OpenAIRE

    Etube, L. S.

    1998-01-01

    The tubular welded joints used in the construction of Offshore structures can experience millions of variable amplitude wave induced stress cycles during their operational life. Fatigue has been identified as the main cause of degradation of structural integrity in these structures. As a result, fatigue is an important consideration in their design. Jack-up legs are made from a range of high strength steels with yield strengths up to 70OMPa. These steels are thought to exhib...

  15. A kinetic study of jack-bean urease denaturation by a new dithiocarbamate bismuth compound

    Science.gov (United States)

    Menezes, D. C.; Borges, E.; Torres, M. F.; Braga, J. P.

    2012-10-01

    A kinetic study concerning enzymatic inhibitory effect of a new bismuth dithiocarbamate complex on jack-bean urease is reported. A neural network approach is used to solve the ill-posed inverse problem arising from numerical treatment of the subject. A reaction mechanism for the urease denaturation process is proposed and the rate constants, relaxation time constants, equilibrium constants, activation Gibbs free energies for each reaction step and Gibbs free energies for the transition species are determined.

  16. Radical Rebel or Conservative Apologist: An Analysis of the Divided Mind of Jack Kerouac

    OpenAIRE

    2006-01-01

    This thesis is an analysis of Jack Kerouac s novels On the Road, The Subterraneans, and The Dharma Bums. The angle is Kerouac s ambiguity and his supposed influence on the countercultural movements of the sixties. Themes discussed are among others conformism, spirituality and religion, racial attitudes and sexual behaviours in Kerouac s novels, juxtaposed to the general attitudes of white middle-class society of his time.

  17. Technology in the work of Jack Kerouac and William S. Burroughs

    OpenAIRE

    2008-01-01

    This thesis explores the use and significance of technologies of representation in the work of Jack Kerouac (1922-1969) and William S. Burroughs (1914-1997), particularly in relation to the development of ideas of free and improvisatory expression in the 1950s. More specifically it focuses on the role played by the technologies of the typewriter and tape recorder in the textual production of key works of each writer and how these technologies are also thematically important in their explorat...

  18. Immune-mediated thrombocytopenia associated with angiostrongylus vasorum infection in a Jack Russell terrier

    OpenAIRE

    JO'Neill Emma; Acke Els; Tobin Emma; McCarthy Grainne

    2010-01-01

    Abstract A twenty-month-old Jack Russell terrier was presented with a four-day history of thrombocytopenia, echymotic inguinal haemorrhages, coughing and reduced exercise tolerance. Clinical examination revealed several petechial haemorrhages on the gingivae and small echymotic haemorrhages in the inguinal region, along with mild bilateral epistaxis. Haematology confirmed a platelet count of 1.0 × 10/L. Thoracic radiographs revealed a wide-spread mixed alveolar-interstitial lung pattern, appa...

  19. Rereading "The Jack-Roller:" Hidden Histories in Sociology and Social Work

    Science.gov (United States)

    Shaw, Ian

    2009-01-01

    I revisit one of the iconic Chicago School studies, Clifford Shaw's "The Jack-Roller". A naive reading of Shaw's book leaves the reader with a sense of having been inducted into a melange of what we now know as "sociology" and "social work," but which to Shaw seems a coherent stance. I suggest that this is close to the heart of how things were,…

  20. Jacks-of-All-Trades? The Effect of Balanced Skills on Team Performance

    OpenAIRE

    Rosendahl Huber, Laura; Sloof, Randolph; Van Praag, Mirjam

    2014-01-01

    Previous empirical studies have shown that solo entrepreneurs benefit from having balanced skills: Jacks-of-All-Trades (JATs) are better entrepreneurs than specialists are. Nowadays however, the majority of entrepreneurs start up and run ventures together in teams. In this paper we test whether the effect of more balanced skills is also positive in a team of entrepreneurs. We also explore whether (a lack of) individual balanced skills can be substituted by combining the skills of various spec...

  1. Ezra Pound’s Cathay in the Light of the Rewriting Theory%从改写理论研究庞德《华夏集》的翻译

    Institute of Scientific and Technical Information of China (English)

    郑玲玲

    2013-01-01

    Pound’s rewriting theory originated from Manipulative school forerunner Lefevere. He holds that translation is to re⁃write the source text. The theory breaks the faithfulness to the source text .This thesis studies the rewriting theory through com⁃paring the Chinese poetry and the translation works of Ezra Pound. Finally, the ideology and poetics are the main factors affecting Pound’s rewriting theory.%  庞德的改写理论最早是起源于操纵派理论旗手勒菲弗尔的改写理论。该理论认为,翻译是对原文本进行改写,打破了对原文的绝对忠实。而这篇文章通过对比古诗和庞德的译诗来研究庞德的改写理论,最后发现意识形态和诗学才是影响庞德改写理论的两大主要因素。

  2. 儒家思想对艾兹拉·庞德的政治经济思想影响%Confucianism in Ezra Pound' s Politics and Economics

    Institute of Scientific and Technical Information of China (English)

    蒋磊骏

    2011-01-01

    As an indispensable part of Ezra Pound' s ideology, Confucianism certainly played an important role in his Politics and Economics. However, scholars from east and west mostly focused their study on either Pound' s Confucianism or Pound' s Polities and Economics, as a result of the huge cultural difference. In view of this, this thesis attempted to explore the influence of Confucianism on Pound' s Politics and Economies.%儒家思想作为庞德思想体系的重要组成部分,对庞德政治经济思想的形成和完善起了重要的作用。然而,由于文化差异等原因,中西方的庞德研究者长期以来一直都仅仅侧重于研究其中的一面。鉴于此,试图从政治和经济两个方面来探讨儒家思想对庞德政治经济思想的影响。

  3. Congenital deafness in Jack Russell terriers: prevalence and association with phenotype.

    Science.gov (United States)

    Comito, B; Knowles, K E; Strain, G M

    2012-08-01

    Congenital hereditary sensorineural deafness is the most common form of deafness in dogs. The objectives of this study were to determine a reliable measure of the prevalence of deafness in Jack Russell terriers, an affected breed, and associations between deafness and phenotypic characteristics. Brainstem auditory evoked response recordings and phenotypic parameters (coat color, coat texture, sex, eye color, sire and dam hearing status) were recorded for 1009 Jack Russell terriers. The prevalence of unilateral and bilateral deafness was 3.57% and 0.50%, respectively, lower by a factor of three to four than in earlier reports based on smaller and closely related kindreds. Significant association with deafness was identified with white coat color and parental hearing status, but not with sex or coat type. Lack of significant sex or coat type associations and the significant association with white coat color are consistent with previous reports. In conclusion the prevalence of deafness in Jack Russell terriers is lower than initially reported. Deafness was associated with white coat color and parental hearing status. The association with parental hearing status supports this form of deafness being a heritable trait in the breed and the association with white coat color supports an inheritance linked to pigmentation genes.

  4. Estuaries as Nurseries for the Jacks Caranx ignobilis and Caranx melampygus (Carangidae) in Hawaii

    Science.gov (United States)

    Smith, G. C.; Parrish, J. D.

    2002-09-01

    Estuaries provide juvenile nursery habitat for many species of fish that inhabit marine environments as adults. In Hawaii, some juvenile Caranx ignobilis and Caranx melampygus occupy estuaries opportunistically before moving to nearshore ocean habitats. This study examined the extent and nature of estuarine habitat available in the lower Hanalei River of Kauai, the relative abundance and distribution of jacks in the estuary, and their diets. Salinity measurements indicated that the upstream extent of saltwater ranged from the mouth to nearly 5 km upriver and was strongly influenced by the variable river discharge. Juvenile jacks between 80 and 310 mm FL were observed on underwater transects over the full range of mixohaline conditions. Hand-operated seine collections produced overall catch rates of ∼0·64 fish/haul for each of these species. The two jacks ate much the same spectrum of food items. C. ignobilis was somewhat more piscivorous than C. melampygus, as determined by measures of frequency of predation and number and bulk of prey. Data for length at age, incorporating daily otolith increment counts from these estuarine juveniles and previous counts from non-estuarine specimens, were fitted to a lifetime von Bertalanffy growth model. The results greatly extended the age range of the model and suggested that growth rates were not much different between estuarine and non-estuarine fish.

  5. Jack vertebral dilator kyphoplasty for treatment of osteoporotic vertebral compression fractures.

    Science.gov (United States)

    Li, Dapeng; Huang, Yonghui; Yang, Huilin; Chen, Qi; Sun, Taicun; Wu, Yan; Li, Xuefeng

    2014-01-01

    Osteoporotic vertebral compression fractures (OVCFs) are common in the elderly population and often involve the thoracolumbar vertebrae. Clinical symptoms of OVCFs include severe pain, loss of vertebral height, progressive kyphosis and increased mortality. Jack vertebral dilator kyphoplasty is a recently developed OVCFs treatment modality, with few systematic studies present in the literature. This retrospective study was designed to investigate the safety and efficacy of Jack vertebral dilator kyphoplasty for treating thoracolumbar OVCFs. Sixteen elderly patients (55-85 years) with solitary thoracolumbar OVCFs were treated with this procedure and followed-up (10-27 months). The amount of injected bone cement and operative time, preoperative and postoperative visual analogue scores, anterior and middle vertebral body heights, local kyphosis angle, and complications was analysed. The results showed that the method provided long-term pain relief and restoration of the vertebral body height and spinal alignment. No serious complications occurred, but two patients experienced recompression of the vertebral body, and one patient experienced cement leakage into a disc. In conclusion, Jack vertebral dilator kyphoplasty is a safe and effective minimally invasive procedure for treatment of OVCFs.

  6. Determining the effect of different cooking methods on the nutritional composition of salmon (Salmo salar) and chilean jack mackerel (Trachurus murphyi) fillets.

    Science.gov (United States)

    Bastías, José M; Balladares, Pamela; Acuña, Sergio; Quevedo, Roberto; Muñoz, Ociel

    2017-01-01

    The effect of four cooking methods was evaluated for proximate composition, fatty acid, calcium, iron, and zinc content in salmon and Chilean jack mackerel. The moisture content of steamed salmon decreased (64.94%) compared to the control (68.05%); a significant decrease was observed in Chilean jack mackerel in all the treatments when compared to the control (75.37%). Protein content in both salmon and Chilean jack mackerel significantly increased under the different treatments while the most significant decrease in lipids was found in oven cooking and canning for salmon and microwaving for Chilean jack mackerel. Ash concentration in both salmon and Chilean jack mackerel did not reveal any significant differences. Iron and calcium content only had significant changes in steaming while zinc did not undergo any significant changes in the different treatments. Finally, no drastic changes were observed in the fatty acid profile in both salmon and Chilean jack mackerel.

  7. Validation of on-site job-built guardrails with shoring jack as supports

    Directory of Open Access Journals (Sweden)

    Lan, A.

    2014-06-01

    Full Text Available To protect themselves against fall hazards in a slab-column frame, workers use the row of shoring jacks installed at 1 m from the edge as supports for on-site built guardrails. Inspectors of the Quebec Workers Compensation Board (Commission de la santé et de la sécurité du travail (CSST have expressed concern about the safety and compliance of these on-site built guardrails with the Quebec Safety Code for the Construction Industry (S-2.1, r.4. Some workers have also inquired if the shoring jack can be used as an anchor for a travel restraint system. The present study describes how an evaluation method and a test protocol have been used to verify if guardrails built on-site, with shoring jacks as supports, are safe and comply with the requirements of S-2.1, r.4 and if the shoring jack can be used as an anchor point for a travel restraint system. The results of the study show 1 guardrails built on site with shoring jacks as supports, are safe and comply with S-2.1, r.4 and 2 shoring jacks used as supports for guardrails must not be used as an anchor for a travel restraint system.Para la protección contra el peligro de caída en altura durante la ejecución de la estructura de un edificio, los trabajadores utilizan puntales acodalados a dos forjados y situados a 1 metro del borde de forjado como apoyo de las barandillas de seguridad. Inspectores de la Quebec Workers Compensation Board (Commision de la santé et de la sécurité du travail (CSST han expresado su preocupación por la seguridad y el cumplimiento de estos sistemas de protección en la construcción conforme al Código de Seguridad de Quebec para la industria de la construcción (S-2.1, R.6. Así mismo algunos trabajadores han mostrado su inquietud sobre la utilización de los puntales como sistemas para limitar el desplazamiento. El presente estudio describe un método de evaluación y un procedimiento de ensayo que se han utilizado para verificar si las barandillas de seguridad

  8. Uji Aktivitas Antioksidan Ekstrak Metanol Bunga dan Daun Patikala (Etlingera elatior (Jack R.M.Sm Menggunakan Metode DPPH

    Directory of Open Access Journals (Sweden)

    Virsa Handayani

    2014-08-01

    Full Text Available Patikala (Etlingera elatior (Jack R.M.Sm is a plant of the Zingiberaceae family. Bioactive compounds of patikala (Etlingera elatior (Jack R.M.Sm are flavonoids that act as antioxidants. The purpose of this study was to measure free radical activity in the methanol extract of the flowers and leaves of patikala (Etlingera elatior (Jack R.M.Sm. Extraction of flowers and leaves samples was conducted with maceration method using methanol. Chemical compounds was qualitatively analyzed with specific eluent using Thin Layer Chromatography (TLC to determine the group of active compounds in the extract. Antioxidant activity assay used the immersion method of DPPH (1,1-Diphenyl-2-picryl Hidrazil to measure the absorption at the wavelength of 517 nm and to be compared with the antioxidant activity of quersetin. The results showed that the methanol extract rendemen was at 1.935% for flowers and at 5.17% for leaves. Antioxidant activity of the methanol extract of patikala (Etlingera elatior (Jack RMSm flowers had a weak antioxidant activity with the IC50 value of 101,84 mg/mL and the methanol extracts of patikala (Etlingera elatior (Jack R.M.Sm leaves had a strong antioxidant activity with IC50 value of 30,65 mg/mL. However, these antioxidant activities were lower than that of quercetin with IC50 value of 5.35 mg/mL.

  9. Secondary vegetation succession on jack pine (Pinus banksiana) cutovers in northeastern Ontario, Canada

    Energy Technology Data Exchange (ETDEWEB)

    Tiveau, Daniel

    2000-07-01

    The effects of different harvesting and site preparation methods on competing vegetation were studied in nine jack pine (Pinus banksiana) cutovers in northeastern Ontario, Canada. Six different treatments plus glyphosate herbiciding and no herbiciding were applied: 1) tree-length harvesting followed by trenching, and full-tree harvesting followed by five site preparations, 2) no site preparation, 3) trenching and 4) blading and compaction as well as blading followed by two planting densities, 5) 1.2m and 6) 2m. Competing vegetation was assessed preharvest and years 1, 2, 3, and 5 postharvest. Data was also available from nine juvenile sites as well as nine semimature sites. Data collection consisted of coverage values of each species as well as structural data for main life forms in height classes. Growth and health data of the planted jack pine seedlings were also available. The data was analyzed using detrended correspondence analysis (DCA), diversity indices and tabular analysis. Three years after the herbicide application there is no difference between the total coverage in the halfplots that have received herbiciding and those that have not, but an alteration of the relative abundance of species groups has developed; glyphosate herbiciding promotes grasses over shrubs. When no site preparation is applied, shrubs increase and compete with the seedlings, whose growth is cut in half compared to the ones that have been site prepared by trenching. Five years after blading, and blading plus compaction, there is still very little vegetation in the research plots, but there is no reduction of the survival rate and growth of the jack pine seedlings. More dense planting after this treatment leads to more competing vegetation, probably due to increased availability of moisture. Grasses do not seem to be affected by compaction and pioneer mosses are promoted by this treatment but compaction leads to a significant reduction of the total coverage of competing vegetation

  10. Tall oil precursors and turpentine in Jack and Eastern White Pine

    Energy Technology Data Exchange (ETDEWEB)

    Conner, A.H.; Diehl, M.A.; Rowe, J.W.

    1980-04-01

    The tall oil precursors and turpentine from jack pine (Pinus banksiana Lamb.) and eastern white pine (Pinus strobus L.) were investigated. The tall oil precursors (resin acids, fatty acids, and unsaponifiables were determined by chemical fractionation of the nonvolatile diethyl ether extractives (NVEE) of these speices: (approximate % resin acids, % fatty acids, % unsaponifiables, and % acids other that fatty and resin acids) - jack pine sapwood (10, 60, 10, 20%), heartwood (38, 12, 6, 44%); eastern white pine sapwood (11, 57, 9, 22%), and heartwood (11, 18, 10, 62%). The resin acids were a mixture of the pimaric and abietic acids common to pines. In addition, eastern white pine contained major amounts of the resin acid, anticopalic acid. The fatty acids were predominately oleic, linoleic, and 5, 9, 12-octadecatrienoic acids. The unsaponsiables were a complex mixture of diterpenes and sterols (mainly campesterol and sitosterol). On treating these species with paraquat, lightwood occurred in the sapwood but not in the heartwood areas as we have oberved with other pines. The NVEE of the lightwood areas contained increased amounts of resin acids, unsaponifiables, and acids other than fatty and resin acids. The total fatty acid content was essentially unchanged. Since fatty acid components are preferentially lost by esterification with neutral alcoholic constituents in the unsaponifiables during the distillation refining of crude tall oil, the increased unsaponifiables relative to the constant fatty acid content might result in a net reduction in fatty acid recovery from lightered trees. The turpentine content of both jack and eastern white pine increased on lightering and was primarily a mixture of ..cap alpha..- and ..beta..-pinene.

  11. Right cranial lung lobe torsion after a diaphragmatic rupture repair in a Jack Russell terrier

    Directory of Open Access Journals (Sweden)

    Terzo E

    2008-03-01

    Full Text Available Abstract A seven-year-old male Jack Russell terrier was presented with a history of coughing, generalised weakness and lethargy 10 days after an abdominal coeliotomy to repair a large diaphragmatic rupture. Thoracic radiographs demonstrated a soft tissue mass in the midcaudal right thoracic cavity. Ultrasonographic studies, bronchoscopy and subsequent exploratory thoracotomy confirmed a diagnosis of a right cranial lung lobe torsion (LLT, with an anomalous caudodorsal displacement of the affected lobe. LLT should be considered as a differential diagnosis for respiratory tract disease following diaphragmatic rupture repair.

  12. Contracultura e contramemória em Os Subterrâneos, de Jack Kerouac.

    OpenAIRE

    Silva Junior, Sávio Augusto Lopes da

    2014-01-01

    Programa de Pós-Graduação em Letras. Departamento de Letras, Instituto de Ciências Humanas e Sociais, Universidade Federal de Ouro Preto. Este trabalho pretende analisar a obra literária Os subterrâneos, do autor norte-americano Jack Kerouac, tendo como base os termos contramemória e contracultura. A expressão contramemória foi cunhada por Aleida Assmann (2011), que observa a forma como a literatura constrói uma memória formada a partir de descartes dos arquivos da cultura oficial. Estes d...

  13. Environmental Assessment of Alternate Training Area Jack Pine Flats Idaho Department of Lands Near Coolin, Idaho

    Science.gov (United States)

    2009-05-01

    Permit/Lease Area for SERE School Alternate Training Jack Pine Flats SERE School Permit Area - ·llo<mdNy IBJ Hon Spoc [:::::J ~1’.1 --~ N W+E s...Requisite to Protect Public Health and Welfare with an Adequate Margin of Safety, EPA/ONAC 550/9-74-004, March 1974. Available online : http://www...Preservation Office. Available online : http://www.idahohistory.net/SHPO. IDFG 2005. Idaho Department ofFish and Game Special Use Permit- Game Take

  14. Converse Spring 2009 Collection Jack Purcell & Sea star春季新品预览

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    Ubiq最近发售了一些来自Converse2009春季系列鞋款。包括了Jack Purcell以及SeaStar两种型号,其中最特别的鞋款是2008年秋季刚刚推出的新鞋款SeaStar,采用海军蓝和白色的搭配,灵感来自于经典的帆船鞋,与Converse其他鞋款有着较明显的区别,但不失为休闲好选择。

  15. [A new alpha chain of jacalin from two wild species of jack-fruit seeds].

    Science.gov (United States)

    Ngoc, L D; Brillard, M; Hoebeke, J; Aucouturier, P

    1995-02-01

    Jacalins, from jack-fruit seeds of 2 wild species (Artocarpus asperulus, Artocarpus masticata) were purified by mucine-sepharose 4B affinity chromatography. The alpha and beta chains were separated by reverse phase high pressure liquid chromatography (HPLC). Analysis by HPLC with a C8 column and the determination of the N-terminal sequence of the alpha-chain of these jacalins allowed the identification of a new alpha-chain. Immunological cross-reactivity and carbohydrate specificity indicate that jacalins possessing the new alpha-chain conserve structural and functional properties of the other members of Artocarpus genus.

  16. Evaluation of the potency activity of aphrodisiac in Eurycoma longifolia Jack.

    Science.gov (United States)

    Ang, H H; Ikeda, S; Gan, E K

    2001-08-01

    The butanol, methanol, water and chloroform extracts of the roots of Eurycoma longifolia Jack were studied using various tests of potency of treated male rats. The results showed that E. longifolia produced a dose-dependent, recurrent and significant increase in the episodes of penile reflexes as evidenced by increases in quick flips, long flips and erections of the treated male rats during the 30 min observation period. These results provide further evidence that E. longifolia increases the aphrodisiac potency activity in treated animals.

  17. Burn Severity Dominates Understory Plant Community Response to Fire in Xeric Jack Pine Forests

    OpenAIRE

    Pinno, Bradley D.; Ruth C. Errington

    2016-01-01

    Fire is the most common disturbance in northern boreal forests, and large fires are often associated with highly variable burn severities across the burnt area. We studied the understory plant community response to a range of burn severities and pre-fire stand age four growing seasons after the 2011 Richardson Fire in xeric jack pine forests of northern Alberta, Canada. Burn severity had the greatest impact on post-fire plant communities, while pre-fire stand age did not have a significant im...

  18. Narrative features of 12 klondike stories by Jack London : semiodiscursive and textual approach

    OpenAIRE

    Kuzmicheva, Maria

    2013-01-01

    En este trabajo de investigación exploramos doce cuentos del escritor americano Jack London. Nuestro objetivo es la aplicación del marco teórico del análisis del discurso a estos textos narrativos para poner de manifiesto sus estrategias discursivas. Hemos escogido estos doce cuentos sobre Klondike y la “quimera del oro” por ser especialmente adecuados al tipo de investigación que nos hemos propuesto realizar. Para analizar este corpus hemos recurrido a fundamentos teó...

  19. The effect of water limitation on volatile emission, tree defense response, and brood success of Dendroctonus ponderosae in two pine hosts, lodgepole and jack pine

    Directory of Open Access Journals (Sweden)

    Inka eLusebrink

    2016-02-01

    Full Text Available The mountain pine beetle (MPB; Dendroctonus ponderosae has recently expanded its range from lodgepole pine forest into the lodgepole × jack pine hybrid zone in central Alberta, within which it has attacked pure jack pine. This study tested the effects of water limitation on tree defense response of mature lodgepole and jack pine (Pinus contorta and Pinus banksiana trees in the field. Tree defense response was initiated by inoculation of trees with the MPB-associated fungus Grosmannia clavigera and measured through monoterpene emission from tree boles and concentration of defensive compounds in phloem, needles, and necrotic tissues. Lodgepole pine generally emitted higher amounts of monoterpenes than jack pine; particularly from fungal-inoculated trees. Compared to non-inoculated trees, fungal inoculation increased monoterpene emission in both species, whereas water treatment had no effect on monoterpene emission. The phloem of both pine species contains (--α-pinene, the precursor of the beetle’s aggregation pheromone, however lodgepole pine contains two times as much as jack pine. The concentration of defensive compounds was 70-fold greater in the lesion tissue in jack pine, but only 10-fold in lodgepole pine compared to healthy phloem tissue in each species, respectively. Water-deficit treatment inhibited an increase of L-limonene as response to fungal inoculation in lodgepole pine phloem. The amount of myrcene in jack pine phloem was higher in water-deficit trees compared to ambient trees. Beetles reared in jack pine were not affected by either water or biological treatment, whereas beetles reared in lodgepole pine benefited from fungal inoculation by producing larger and heavier female offspring. Female beetles that emerged from jack pine bolts contained more fat than those that emerged from lodgepole pine, even though lodgepole pine phloem had a higher nitrogen content than jack pine phloem. These results suggest that jack pine chemistry

  20. Impact of changes to T and R 5-5A on jack-up system reliability levels

    Energy Technology Data Exchange (ETDEWEB)

    Morandi, A.C.

    2003-07-01

    This report aims to develop a robust methodology to provide quantified guidance relating to the impact on reliability of changes to T and R 5-5A being presently considered by the industry. This will facilitate the industry consensus necessary for such changes to be fully incorporated into jack-up site assessment. Covers phase I of the work. Previews previous pushover and reliability analyses, and areas where modelling improvements are recommended were identified. Factors that affect jack-up system reliability were identified and a premise for performing reliability analyses of jack-ups utilizing state-of-the-art modelling is outlined. Two rig/location cases were selected that were as close to the T and R 5-5A calibration cases as changes to T and R 5-5A on unity checks were evaluated based on such cases. (author)

  1. Jack Kerouac

    OpenAIRE

    Cragun, Hailey

    2016-01-01

    Kerouac emerged as one of the brightest stars in the firmament of American letters due to the success of his 1957 novel, On the Road, but this fame would contribute to his undoing. Despite the fact that he had devoted himself to literary success for many years, Kerouac was unprepared for either the hostility leveled at his experimental style or the adulation of fans. He was in some ways famously shy, too self-conscious or insecure even to read his recently completed volume of poetry, Mexico C...

  2. Jack Kerouac

    OpenAIRE

    2013-01-01

    Kerouac emerged as one of the brightest stars in the firmament of American letters due to the success of his 1957 novel, On the Road, but this fame would contribute to his undoing. Despite the fact that he had devoted himself to literary success for many years, Kerouac was unprepared for either the hostility leveled at his experimental style or the adulation of fans. He was in some ways famously shy, too self-conscious or insecure even to read his recently completed volume of poetry, Mexico C...

  3. Jack of all trades, master of some? On the role of phenotypic plasticity in plant invasions.

    Science.gov (United States)

    Richards, Christina L; Bossdorf, Oliver; Muth, Norris Z; Gurevitch, Jessica; Pigliucci, Massimo

    2006-08-01

    Invasion biologists often suggest that phenotypic plasticity plays an important role in successful plant invasions. Assuming that plasticity enhances ecological niche breadth and therefore confers a fitness advantage, recent studies have posed two main hypotheses: (1) invasive species are more plastic than non-invasive or native ones; (2) populations in the introduced range of an invasive species have evolved greater plasticity than populations in the native range. These two hypotheses largely reflect the disparate interests of ecologists and evolutionary biologists. Because these sciences are typically interested in different temporal and spatial scales, we describe what is required to assess phenotypic plasticity at different levels. We explore the inevitable tradeoffs of experiments conducted at the genotype vs. species level, outline components of experimental design required to identify plasticity at different levels, and review some examples from the recent literature. Moreover, we suggest that a successful invader may benefit from plasticity as either (1) a Jack-of-all-trades, better able to maintain fitness in unfavourable environments; (2) a Master-of-some, better able to increase fitness in favourable environments; or (3) a Jack-and-master that combines some level of both abilities. This new framework can be applied when testing both ecological or evolutionary oriented hypotheses, and therefore promises to bridge the gap between the two perspectives.

  4. UPAYA INISIASI KALUS TABAT BARITO (Ficus deltoidea Jack DENGAN KULTUR JARINGAN

    Directory of Open Access Journals (Sweden)

    Heru Sudrajad

    2014-03-01

    Full Text Available Tabat barito (Ficus deltoidea Jack representing one of the plant for medicine. Medicinal plant instructed from conducting result, so that  need the seed which good with quality uniform and during which at the same time. This research is conducted to remember require to be developed and standard certifiable plant conducting upon which medicinal plant. One of the step needed by is the effort certifiable seed levying. technique of tissue culture have the excess of because is not influenced by climate with the time produce relative quickly, free of kontaminasi microbe and do not need the wide of farm. This research use the method of eksperimental of laboratory of Medicinal Plant an Tradicional Medicine Research and Developent Office the media MS (Murashige Skoog with the treatment regulator grow the Benzilamino Purin with the concentration 3, 4, 5, 6 mg/l and giberelin with the concentration 1, 2, 3, 4 mg/l. Perception conducted to a period to growing early callus and callus growth with the incubation period 60 day. Result of research indicate that the combination of regulator grow the BAP concentration 4-6 mg/l and giberelin 2-4 mg/l is got by a callus. Treatment of media MS enriched by BAP 6 mg/l and giberelin 4 mg/l obtained by result of time grow early quickest fastest that is 28 day with the best callus growth.Kata kunci: Tabat barito, Ficus deltoida Jack., tissue culture, BAP, giberelin,

  5. The construction of identity in a consumerist society: Delillo’s Jack Gladney

    Directory of Open Access Journals (Sweden)

    Sanja Matković

    2016-02-01

    Full Text Available This paper deals with the construction of the postmodern identity of Jack Gladney, the main character in Don DeLillo’s White Noise (1985. Employing (postmodern, social psychology, and psychoanalytic theories of Zygmunt Bauman, Erich Fromm, Jean Baudrillard, and Gilles Lipovetsky, it analyzes the construction of Gladney’s character through his social roles as professor, husband, and consumer in the narrow sense of the word in order to deduce that his consumerist practices have spread to all aspects of his life. This reading reveals a new interpretation of Gladney’s fear of death; it shows that Gladney’s thanatophobia represents a consequence of his atheistic worldview. Namely, unable to find a haven in religion, he unsuccessfully seeks the meaning of life and death elsewhere, mainly in consumerism, which is identified as the source of his alienation from himself, people, and God. This paper suggests that numerous problems of postmodern life are caused by the lack of faith in God and proposes a conclusion that religion itself could be the answer to the difficulties faced by postmodern individuals with fragmented identities such as Jack Gladney.

  6. Jack-of-all-trades effects drive biodiversity-ecosystem multifunctionality relationships in European forests.

    Science.gov (United States)

    van der Plas, Fons; Manning, Peter; Allan, Eric; Scherer-Lorenzen, Michael; Verheyen, Kris; Wirth, Christian; Zavala, Miguel A; Hector, Andy; Ampoorter, Evy; Baeten, Lander; Barbaro, Luc; Bauhus, Jürgen; Benavides, Raquel; Benneter, Adam; Berthold, Felix; Bonal, Damien; Bouriaud, Olivier; Bruelheide, Helge; Bussotti, Filippo; Carnol, Monique; Castagneyrol, Bastien; Charbonnier, Yohan; Coomes, David; Coppi, Andrea; Bastias, Cristina C; Muhie Dawud, Seid; De Wandeler, Hans; Domisch, Timo; Finér, Leena; Gessler, Arthur; Granier, André; Grossiord, Charlotte; Guyot, Virginie; Hättenschwiler, Stephan; Jactel, Hervé; Jaroszewicz, Bogdan; Joly, François-Xavier; Jucker, Tommaso; Koricheva, Julia; Milligan, Harriet; Müller, Sandra; Muys, Bart; Nguyen, Diem; Pollastrini, Martina; Raulund-Rasmussen, Karsten; Selvi, Federico; Stenlid, Jan; Valladares, Fernando; Vesterdal, Lars; Zielínski, Dawid; Fischer, Markus

    2016-03-24

    There is considerable evidence that biodiversity promotes multiple ecosystem functions (multifunctionality), thus ensuring the delivery of ecosystem services important for human well-being. However, the mechanisms underlying this relationship are poorly understood, especially in natural ecosystems. We develop a novel approach to partition biodiversity effects on multifunctionality into three mechanisms and apply this to European forest data. We show that throughout Europe, tree diversity is positively related with multifunctionality when moderate levels of functioning are required, but negatively when very high function levels are desired. For two well-known mechanisms, 'complementarity' and 'selection', we detect only minor effects on multifunctionality. Instead a third, so far overlooked mechanism, the 'jack-of-all-trades' effect, caused by the averaging of individual species effects on function, drives observed patterns. Simulations demonstrate that jack-of-all-trades effects occur whenever species effects on different functions are not perfectly correlated, meaning they may contribute to diversity-multifunctionality relationships in many of the world's ecosystems.

  7. The Jellyfish hunter--Jack Barnes: a pioneer medical toxinologist in Australia.

    Science.gov (United States)

    Pearn, John; Fenner, Peter

    2006-12-01

    Dr Jack Handyside Barnes (1922-1985) was one of the small and elite group of Pacific marine toxinologists whose work was characterised by an uncompromising rugged persona, a focussed resolve to solve challenging problems of human clinical envenomation, and who conducted curiosity-driven research under conditions of scientific isolation. He was a pioneering advocate for the preservation of marine heritage, particularly that of the Great Barrier Reef. A former military commando who later became a general medical practitioner with extensive surgical and obstetric skills, in 1947 he was appointed the Medical Superintendent of Thursday Island in the Torres Strait. Later (from January 1953), he worked indefatigably as a general medical practitioner in Cairns, in tropical North Australia. For four decades (1945-1985), Jack Barnes undertook detailed laboratory, clinical and field research into invertebrate envenomation, particularly medusan toxinology. In 1960 he discovered the species responsible for the Irukandji syndrome, a small carybdeid named Carukia barnesi in his honour. He invented the research technique for the extraction of venom from the world's most venomous creature, the Pacific box Jellyfish, Chironex fleckeri. By 1960, he had published taxonomic details of nematocyst structure and clinical envenomation details consequent upon stings by Physalia, Cyanea, Chironex, Chiropsalmus and Carukia. This paper is a précis of the chronology of his life, contributions and influence.

  8. Influence of seedbed, light environment, and elevated night temperature on growth and carbon allocation in pitch pine (Pinus rigida) and jack pine (Pinus banksiana) seedlings

    Science.gov (United States)

    Michael E. Day; Jessica L. Schedlbauer; William H. Livingston; Michael S. Greenwood; Alan S. White; John C. Brissette

    2005-01-01

    Jack pine (Pinus banksiana Lamb.) and pitch pine (Pinus rigida Mill.) are two autecologically similar species that occupy generally disjunct ranges in eastern North America. Jack pine is boreal in distribution, while pitch pine occurs at temperate latitudes. The two species co-occur in a small number of stands along a 'tension...

  9. Aging Jack-Up Rig Fleet in Need of 200 NewbuUds BY ROB ALMEIDA ON JUNE 22,2012-6-26

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    At the 25th annual Marine Money conference in New York this week, Andreas Stubsrud, Head of Research at Pareto Securities, predicted a need for 200 new jack up rigs as nearly half of the 450 jack ups worldwide approach their 40th birthdays by 2020.

  10. Kinetics and mechanism of jack bean urease inhibition by Hg2+

    Directory of Open Access Journals (Sweden)

    Du Nana

    2012-12-01

    Full Text Available Abstract Background Jack bean urease (EC 3.5.1.5 is a metalloenzyme, which catalyzes the hydrolysis of urea to produce ammonia and carbon dioxide. The heavy metal ions are common inhibitors to control the rate of the enzymatic urea hydrolysis, which take the Hg2+ as the representative. Hg2+ affects the enzyme activity causing loss of the biological function of the enzyme, which threatens the survival of many microorganism and plants. However, inhibitory kinetics of urease by the low concentration Hg2+ has not been explored fully. In this study, the inhibitory effect of the low concentration Hg2+ on jack bean urease was investigated in order to elucidate the mechanism of Hg2+ inhibition. Results According to the kinetic parameters for the enzyme obtained from Lineweaver–Burk plot, it is shown that the Km is equal to 4.6±0.3 mM and Vm is equal to 29.8±1.7 μmol NH3/min mg. The results show that the inhibition of jack bean urease by Hg2+ at low concentration is a reversible reaction. Equilibrium constants have been determined for Hg2+ binding with the enzyme or the enzyme-substrate complexes (Ki =0.012 μM. The results show that the Hg2+ is a noncompetitive inhibitor. In addition, the kinetics of enzyme inhibition by the low concentration Hg2+ has been studied using the kinetic method of the substrate reaction. The results suggest that the enzyme first reversibly and quickly binds Hg2+ and then undergoes a slow reversible course to inactivation. Furthermore, the rate constant of the forward reactions (k+0 is much larger than the rate constant of the reverse reactions (k-0. By combining with the fact that the enzyme activity is almost completely lost at high concentration, the enzyme is completely inactivated when the Hg2+ concentration is high enough. Conclusions These results suggest that Hg2+ has great impacts on the urease activity and the established inhibition kinetics model is suitable.

  11. Recovering the primary geochemistry of Jack Hills zircons through quantitative estimates of chemical alteration

    Science.gov (United States)

    Bell, Elizabeth A.; Boehnke, Patrick; Harrison, T. Mark

    2016-10-01

    Despite the robust nature of zircon in most crustal and surface environments, chemical alteration, especially associated with radiation damaged regions, can affect its geochemistry. This consideration is especially important when drawing inferences from the detrital record where the original rock context is missing. Typically, alteration is qualitatively diagnosed through inspection of zircon REE patterns and the style of zoning shown by cathodoluminescence imaging, since fluid-mediated alteration often causes a flat, high LREE pattern. Due to the much lower abundance of LREE in zircon relative both to other crustal materials and to the other REE, disturbance to the LREE pattern is the most likely first sign of disruption to zircon trace element contents. Using a database of 378 (148 new) trace element and 801 (201 new) oxygen isotope measurements on zircons from Jack Hills, Western Australia, we propose a quantitative framework for assessing chemical contamination and exchange with fluids in this population. The Light Rare Earth Element Index is scaled on the relative abundance of light to middle REE, or LREE-I = (Dy/Nd) + (Dy/Sm). LREE-I values vary systematically with other known contaminants (e.g., Fe, P) more faithfully than other suggested proxies for zircon alteration (Sm/La, various absolute concentrations of LREEs) and can be used to distinguish primary compositions when textural evidence for alteration is ambiguous. We find that zircon oxygen isotopes do not vary systematically with placement on or off cracks or with degree of LREE-related chemical alteration, suggesting an essentially primary signature. By omitting zircons affected by LREE-related alteration or contamination by mineral inclusions, we present the best estimate for the primary igneous geochemistry of the Jack Hills zircons. This approach increases the available dataset by allowing for discrimination of on-crack analyses (and analyses with ambiguous or no information on spot placement or

  12. CoJACK: A High-Level Cognitive Architecture with Demonstrations of Moderators, Variability, and Implications for Situation Awareness

    Science.gov (United States)

    2012-01-01

    defined, to CoJACK (Ritter, Reifers, Klein, & Schoelles, 2007) based on task appraisal theory (e.g., Cannon, 1932; Lazarus & Folkman, 1984; Selye...Cambridge, MA: MIT Press. Lazarus , R. S., & Folkman, S. (1984). Stress, appraisal and coping. New York: Springer Publishing. Lovett, M. C., Daily, L

  13. Healing of the Acutely Injured Anterior Cruciate Ligament: Functional Treatment with the ACL-Jack, a Dynamic Posterior Drawer Brace.

    Science.gov (United States)

    Jacobi, Matthias; Reischl, Nikolaus; Rönn, Karolin; Magnusson, Robert A; Gautier, Emanuel; Jakob, Roland P

    2016-01-01

    Background. The injured anterior cruciate ligament (ACL) has a limited healing capacity leading to persisting instability. Hypothesis/Purpose. To study if the application of a brace, producing a dynamic posterior drawer force, after acute ACL injury reduces initial instability. Study Design. Cohort study. Methods. Patients treated with the ACL-Jack brace were compared to controls treated with primary ACL reconstruction und controls treated nonsurgically with functional rehabilitation. Measurements included anterior laxity (Rolimeter), clinical scores (Lysholm, Tegner, and IKDC), and MRI evaluation. Patients were followed up to 24 months. Results. Patients treated with the ACL-Jack brace showed a significant improvement of anterior knee laxity comparable to patients treated with ACL reconstruction, whereas laxity persisted after nonsurgical functional rehabilitation. The failure risk (secondary reconstruction necessary) of the ACL-Jack group was however 21% (18 of 86) within 24 months. Clinical scores were similar in all treatment groups. Conclusion. Treatment of acute ACL tears with the ACL-Jack brace leads to improved anterior knee laxity compared to nonsurgical treatment with functional rehabilitation.

  14. Healing of the Acutely Injured Anterior Cruciate Ligament: Functional Treatment with the ACL-Jack, a Dynamic Posterior Drawer Brace

    Science.gov (United States)

    Reischl, Nikolaus; Rönn, Karolin; Magnusson, Robert A.; Gautier, Emanuel; Jakob, Roland P.

    2016-01-01

    Background. The injured anterior cruciate ligament (ACL) has a limited healing capacity leading to persisting instability. Hypothesis/Purpose. To study if the application of a brace, producing a dynamic posterior drawer force, after acute ACL injury reduces initial instability. Study Design. Cohort study. Methods. Patients treated with the ACL-Jack brace were compared to controls treated with primary ACL reconstruction und controls treated nonsurgically with functional rehabilitation. Measurements included anterior laxity (Rolimeter), clinical scores (Lysholm, Tegner, and IKDC), and MRI evaluation. Patients were followed up to 24 months. Results. Patients treated with the ACL-Jack brace showed a significant improvement of anterior knee laxity comparable to patients treated with ACL reconstruction, whereas laxity persisted after nonsurgical functional rehabilitation. The failure risk (secondary reconstruction necessary) of the ACL-Jack group was however 21% (18 of 86) within 24 months. Clinical scores were similar in all treatment groups. Conclusion. Treatment of acute ACL tears with the ACL-Jack brace leads to improved anterior knee laxity compared to nonsurgical treatment with functional rehabilitation. PMID:28053787

  15. On the Eicosanoid Trail with John Vane and Jack McGiff: 1974-1976. A personal reminiscence.

    Science.gov (United States)

    Flower, R J

    2015-07-01

    In this brief personal reminiscence I comment upon the friendship and mutual understanding that arose between two great scientists and co-travellers, John Vane and Jack McGiff. I relate the events that led up to their meeting and focus on the brief period of time when they worked together on eicosanoid pharmacology in the UK.

  16. Biomechanical Evaluation of the Vertebral Jack Tool and the Inflatable Bone Tamp for Reduction of Osteoporotic Spine Fractures

    NARCIS (Netherlands)

    Sietsma, Maurits S.; Hosman, Allard J. F.; Verdonschot, N. J. J.; Aalsma, Arthur M. M.; Veldhuizen, Albert G.

    2009-01-01

    Study Design. Controlled in vitro study. Objective. To compare two kyphoplasty techniques in cadaveric fractured vertebrae: an experimental vertebral jack tool (VJT) and an inflatable bone tamp (IBT). Summary of Background Data. A previous biomechanical study showed restored strength and stiffness a

  17. Use of the multinomial jack-knife and bootstrap in generalized non-linear canonical correlation analysis

    NARCIS (Netherlands)

    Burg, van der Eeke; Leeuw, de Jan

    1988-01-01

    In this paper we discuss the estimation of mean and standard errors of the eigenvalues and category quantifications in generalized non-linear canonical correlation analysis (OVERALS). Starting points are the delta method equations, but the jack-knife and bootstrap are used to provide finite differen

  18. Magic Words, Magic Brush: The Art of William Butler and Jack Yeats. ArtsEdge Curricula, Lessons and Activities.

    Science.gov (United States)

    Karsten, Jayne

    This curriculum unit, designed for grades 7-12, integrates various artistic disciplines with geography, history, social studies, media, and technology. This unit on William Butler Yeats, the writer, and Jack Yeats, the painter, seeks to immerse students in a study of the brothers as voices of Ireland and as two of the most renowned artists of the…

  19. 论庞德诗学及其《诗章》的日本能剧渊源%On the Affinities of Ezra Pound' s Poetics and His Cantos with Japanese Nob

    Institute of Scientific and Technical Information of China (English)

    朱伊革

    2012-01-01

    美国著名诗人埃兹拉.庞德在诗学和诗艺的持续嬗变中,从日本能剧中汲取了诗歌创作的灵感。能剧为庞德提供了一个时间结构概念,使他从意象主义的本能瞬间走向《诗章》复杂和延长的结构,实现了其长诗情感统一和意象统一的诗学理想。《诗章4》展示了庞德掌握能剧中的变形和表达人类普世情感方式的熟练程度,也表现了庞德在能剧情感统一和意象统一的启发下将短小精悍的意象主义诗歌发展成长诗的可能性。《比萨诗章》凸显了能剧的情感统一和意象统一所形成的艺术强度和张力。%In the evolution of his poetic style, American poet Ezra Pound draws inspiration from Japanese Noh. Noh plays suggest to Pound a structural conception of time which allows him to progress from the momentary intuitions of Imagism Cantos ; as a result, his poetics of Unity of Emotion to the complex and extended structure of The and Unity of Image in the long poem is estab- lished. Canto IV not only demonstrates Pound' s mastery of metamorphosis and expression of uni- versal human emotion in Noh plays, but also unfolds the possibility of creating a long poem on the basis of the principle of Unity of Emotion and Unity of Image in Noh plays. The Pisan Cantos reflect the artistic charm and tension based on this principle.

  20. Ficus deltoidea Jack: A Review on Its Phytochemical and Pharmacological Importance

    Directory of Open Access Journals (Sweden)

    Hamidun Bunawan

    2014-01-01

    Full Text Available Ficus deltoidea Jack (Moraceae has had a long history of use in traditional medicine among the Malays to alleviate and heal ailments such as sores, wounds, and rheumatism and as an after-birth tonic and an antidiabetic drug. Modern pharmacological studies demonstrated that this plant has a wide variety of beneficial attributes for human health. Despite its importance, a review of this species has not been published in the scientific literature to date. Here, we review and summarize the historic and current literature concerning the botany, traditional uses, phytochemistry, pharmacological effects, and toxicity of this wonder plant. This summary could be beneficial for future research aiming to exploit the therapeutic potential of this useful, medicinal species.

  1. Raccoglier lettere. Le “Vico collaborations” di Jack W. Stauffacher e Dennis Letbetter

    Directory of Open Access Journals (Sweden)

    Armando, David

    2010-01-01

    Full Text Available Starting in the early ’70s the San Francisco printer and typographer Jack W. Stauffacher undertook a graphic exploration of Vico’s works, which continued during the past decade together with the photographer Dennis Letbetter. The aim of this article is to present their experience - which is at the same time poetic and historically attentive, focusing on the relationships between text and images, and on the typographical and physical qualities of 18th century editions - to an audience which includes Italian Vico scholars. The text is composed of a brief introduction and an interview with the two artists, and is followed (pp. 94-180 by a photographic presentation of their "Vico collaborations".

  2. Thermodynamic study of CN~- ion inhibition of Jack bean urease using the extended solvation theory

    Institute of Scientific and Technical Information of China (English)

    G. Rezaei Behbehani; A.A. Saboury; M. Mohebbian; S. Tahmasbi Sarvestani; M. Poorheravi

    2009-01-01

    Cyanide ion was studied as an inhibitor of Jack bean urease at 300 K in 30 mmol/L tris buffer, Ph 7. The inhibition was investigated by isothermal titration calorimetry (ITC). The extended solvation model was used for CN~- + JBU interaction over the whole range of CN~- concentrations. The binding parameters recovered from the solvation model were attributed to the cyanide ion interaction. It was found that cyanide ion acted as a non-cooperative inhibitor of urease, and there is a set of 12 ± 0.12 identical and independent binding sites for CN~- ions. The dissociation equilibrium constant is 749.99 μmol/L. The molar enthalpy of binding is △H=-13.60 KJ mol~(-1).

  3. Evapotranspiration and crop coefficients of corn in monoculture and intercropped with jack bean

    Directory of Open Access Journals (Sweden)

    Mário S. P. de Araújo

    Full Text Available ABSTRACT This study was carried out to determine the evapotranspiration (ETc and crop coefficients (Kc for four stages of “Caatingueiro” corn under the climate condition of Seropédica, RJ, Brazil, using weighing lysimeters. The field trial occurred in 2015, from March 18 to June 25, in two areas cultivated with “Caatingueiro’ corn intercropped with jack bean and in monoculture. The reference evapotranspiration (ETo was estimated by the FAO-56 Penman-Monteith model and the Kc values were determined by the ratio between ETc and ETo. The Kc values obtained for the intercropping and monoculture systems, were respectively: 0.78 (I; 1.01 (II; 1.10 (III and 1.01 (IV, and 0.62 (I; 0.92 (II; 1.27 (III and 0.81 (IV, and they were different from the values presented by FAO.

  4. [Malignant narcissism and sexual homicide--exemplified by the Jack Unterweger case].

    Science.gov (United States)

    Haller, R

    1999-01-01

    With the syndrome of malignant narcissism, which is characterised by narcissistic personality disorder, anti-social behaviour, sadism and a marked tendency to paranoid reactions, Kernberg (1985, 1996) describes an independent form of pathological narcissism. According to Stone (1996) this is found in many mass-murderers and serial killers. On the basis of the example of Jack Unterweger the connection between malignant narcissism and sexual offence is discussed as to psychodynamic development, personality structure and psychopathology. Unterweger, who was convicted to lifelong imprisonment in 1976 for sadistic sexual murder, became a wellknown writer in prison and was released prematurely in 1990 as the Austria case of successful rehabilitation. As stated in the sentence passed against him he killed 11 prostitutes in Europe and the USA within the next 18 months, but never pleaded guilty. Psychiatric examination revealed numerous elements of malignant narcissism and the constellation of his development and life was typical of serial offenders.

  5. Coumarins and flavonoid from Murraya paniculata (L.) Jack: Antibacterial and anti-inflammation activity.

    Science.gov (United States)

    Rodanant, Pirasut; Khetkam, Pichit; Suksamrarn, Apichart; Kuvatanasuchati, Jintakorn

    2015-11-01

    The ethyl acetate extract of leaves of Murraya paniculata (L.) Jack was described in the previous in vitro study on the inhibition effect on the growth of periodontopathic bacteria and the reduction of cytokines from LPS-stimulated macrophages. In this study, four coumarins including murrangatin (1), murrangatin acetate (2), murranganonesenecionate (3), micropubescin (4) and one flavonoid, 3', 4', 5', 7-tetramethoxyflavone (5) were isolated from the leaves of ethyl acetate extract of M. paniculata. MTT assay was used to test cytotoxicity on human gingival fibroblast and monocytes. The isolated compounds were evaluated for their antibacterial effect against Porphyromonas gingivalis (ATCC33277) and anti-inflammation on lipopolysaccharide-stimulated inflammation using monocyte cells. All isolated compounds exhibited antibacterial activity against P. gingivalis (ATCC 33277). Murranganonesenecionate (3) was highly potent anti-inflammation properties. The coumarin constituents from M. paniculata leaves might be potential lead molecules for the development of antimicrobial drugs for treating periodontal disease.

  6. Jack Rabbit Pretest 2021E PT5 Photonic Doppler Velocimetry Data Volume 5 Section 1

    Energy Technology Data Exchange (ETDEWEB)

    Hart, M M; Strand, O T; Bosson, S T; Bonner, R A; Hester, D M

    2008-06-25

    The Jack Rabbit Pretest (PT) 2021E PT5 was fired on March 17, 2008 at the Contained Firing Facility, Site 300, Lawrence Livermore National Laboratory. This experiment is part of an effort to determine the properties of LX-17 in a regime where corner-turning behavior and dead-zone formation are not well understood. Photonic Doppler Velocimetry (PDV) measured diagnostic plate velocities confirming the presence of a persistent LX-17 dead-zone formation and the resultant impulse gradient applied under the diagnostic plate. The Jack Rabbit Pretest 2021E PT5, 160 millimeter diameter experiment returned data on all eight PDV probes. The probes measured on the central axis and at 20, 30, 35, 45, 55, 65, 75 millimeters from the central axis. The experiment was shot at an ambient room temperature of 65 degrees Fahrenheit. The earliest PDV signal extinction was 40.0 microseconds at 45 millimeters. The latest PDV signal extinction time was 64.9 microseconds at 20 millimeters. The measured velocity ranged from meters per second to thousands of meters per second. First detonation wave induced jump-off was measured at 55 millimeters at 12.8 microseconds. The PDV data provided an unambiguous indication of dead-zone formation and an impulse gradient applied to the diagnostic plate. The central axis had a last measured velocity of 1877 meters per second. At 65 millimeters the last measured velocity was 2277 meters per second. The low-to-high velocity ratio was 0.82. Velocity data was integrated to compute diagnostic plate cross section profiles. Velocity data was differentiated to compute a peak pressure under the diagnostic plate at the central axis of 78 kilobars at 11.9 and 21.2 microseconds. Substantial motion (>1 m/s) of the diagnostic plate over the dead-zone is followed by detonation region motion within approximately 4.1 microseconds.

  7. Jack Rabbit Pretest 2021E PT4 Photonic Doppler Velocimetry Data Volume 4 Section 1

    Energy Technology Data Exchange (ETDEWEB)

    Hart, M M; Strand, O T; Bosson, S T; Bonner, R A; Hester, D M

    2008-06-25

    The Jack Rabbit Pretest (PT) 2021E PT4 was fired on March 19, 2008 at the Contained Firing Facility, Site 300, Lawrence Livermore National Laboratory. This experiment is part of an effort to determine the properties of LX-17 in a regime where corner-turning behavior and dead-zone formation are not well understood. Photonic Doppler Velocimetry (PDV) measured diagnostic plate velocities confirming the presence of a persistent LX-17 dead-zone formation and the resultant impulse gradient applied under the diagnostic plate. The Jack Rabbit Pretest 2021E PT4, 120 millimeter diameter experiment returned data on all eight PDV probes. The probes measured on the central axis and at 10, 20, 25, 30, 35, 40, 50 millimeters from the central axis. The experiment was shot at an ambient room temperature of 64 degrees Fahrenheit. The earliest PDV signal extinction was 44.9 microseconds at 30 millimeters. The latest PDV signal extinction time was 69.5 microseconds at 10 millimeters. The measured velocity ranged from meters per second to thousands of meters per second. First detonation wave induced jump-off was measured at 50 millimeters at 13.3 microseconds. The PDV data provided an unambiguous indication of dead-zone formation and an impulse gradient applied to the diagnostic plate. The central axis had a last measured velocity of 1558 meters per second. At 40 millimeters the last measured velocity was 2019 meters per second. The low-to-high velocity ratio was 0.77. Velocity data was integrated to compute diagnostic plate cross section profiles. Velocity data was differentiated to compute a peak pressure under the diagnostic plate at the central axis of 98.6 kilobars at 15.0 microseconds. Substantial motion (>1 m/s) of the diagnostic plate over the dead-zone is followed by detonation region motion within approximately 0.7 microseconds.

  8. Kinetics and Mechanism Study of Competitive Inhibition of Jack-Bean Urease by Baicalin

    Directory of Open Access Journals (Sweden)

    Lirong Tan

    2013-01-01

    Full Text Available Baicalin (BA is the principal component of Radix Scutellariae responsible for its pharmacological activity. In this study, kinetics and mechanism of inhibition by BA against jack-bean urease were investigated for its therapeutic potential. It was revealed that the IC50 of BA against jack-bean urease was 2.74 ± 0.51 mM, which was proved to be a competitive and concentration-dependent inhibition with slow-binding progress curves. The rapid formation of initial BA-urease complex with an inhibition constant of Ki=3.89 × 10−3 mM was followed by a slow isomerization into the final complex with an overall inhibition constant of Ki*=1.47×10-4 mM. High effectiveness of thiol protectors against BA inhibition indicated that the strategic role of the active-site sulfhydryl group of the urease was involved in the blocking process. Moreover, the inhibition of BA was proved to be reversible due to the fact that urease could be reactivated by dithiothreitol but not reactant dilution. Molecular docking assay suggested that BA made contacts with the important activating sulfhydryl group Cys-592 residues and restricted the mobility of the active-site flap. Taken together, it could be deduced that BA was a competitive inhibitor targeting thiol groups of urease in a slow-binding manner both reversibly and concentration-dependently, serving as a promising urease inhibitor for treatments on urease-related diseases.

  9. Jack Rabbit Pretest 2021E PT7 Photonic Doppler Velocimetry Data Volume 7 Section 1

    Energy Technology Data Exchange (ETDEWEB)

    Hart, M M; Strand, O T; Bosson, S T; Bonner, R A; Hester, D M

    2008-06-25

    The Jack Rabbit Pretest (PT) 2021E PT7 experiment was fired on April 3, 2008 at the Contained Firing Facility, Site 300, Lawrence Livermore National Laboratory. This experiment is part of an effort to determine the properties of LX-17 in a regime where corner-turning behavior and dead-zone formation are not well understood. Photonic Doppler Velocimetry (PDV) measured diagnostic plate velocities confirming the presence of a persistent LX-17 dead-zone formation and the resultant impulse gradient applied under the diagnostic plate. The Jack Rabbit Pretest 2021E PT7, 160 millimeter diameter experiment returned data on all eight PDV probes. The probes measured on the central axis and at 20, 30, 35, 45, 55, 65, 75 millimeters from the central axis. The experiment was shot at an ambient room temperature of 65 degrees Fahrenheit. The PDV earliest signal extinction was 50.7 microseconds at 45 millimeters. The latest PDV signal extinction time was 65.0 microseconds at 20 millimeters. The measured velocity ranged from meters per second to thousands of meters per second. First detonation wave induced jump-off was measured at 55 millimeters and at 15.2 microseconds. The PDV data provided an unambiguous indication of dead-zone formation and an impulse gradient applied to the diagnostic plate. The central axis had a last measured velocity of 1447 meters per second. At 65 millimeters the last measured velocity was 2360 meters per second. The low-to-high velocity ratio was 0.61. Velocity data was integrated to compute diagnostic plate cross section profiles. Velocity data was differentiated to compute a peak pressure under the diagnostic plate at the central axis of 49 kilobars at 23.3 microseconds. Substantial motion (>1 m/s) of the diagnostic plate over the dead-zone is followed by detonation region motion within approximately 4.6 microseconds.

  10. Jack Rabbit Pretest 2021E PT6 Photonic Doppler Velocimetry Data Volume 6 Section 1

    Energy Technology Data Exchange (ETDEWEB)

    Hart, M M; Strand, O T; Bosson, S T; Bonner, R A; Hester, D M

    2008-06-25

    The Jack Rabbit Pretest (PT) 2021E PT6 experiment was fired on April 1, 2008 at the Contained Firing Facility, Site 300, Lawrence Livermore National Laboratory. This experiment is part of an effort to determine the properties of LX-17 in a regime where corner-turning behavior and dead-zone formation are not well understood. Photonic Doppler Velocimetry (PDV) measured diagnostic plate velocities confirming the presence of a persistent LX-17 dead-zone formation and the resultant impulse gradient applied under the diagnostic plate. The Jack Rabbit Pretest 2021E PT6, 160 millimeter diameter experiment returned data on all eight PDV probes. The probes measured on the central axis and at 20, 30, 35, 45, 55, 65, 75 millimeters from the central axis. The experiment was shot at an ambient room temperature of 65 degrees Fahrenheit. The earliest PDV signal extinction was 54.2 microseconds at 30 millimeters. The latest PDV signal extinction time was 64.5 microseconds at the central axis. The measured velocity ranged from meters per second to thousands of meters per second. First detonation wave induced jump-off was measured at 55 millimeters at 14.1 microseconds. The PDV data provided an unambiguous indication of dead-zone formation and an impulse gradient applied to the diagnostic plate. The central axis had a last measured velocity of 1860 meters per second. At 55 millimeters the last measured velocity was 2408 meters per second. The low-to-high velocity ratio was 0.77. Velocity data was integrated to compute diagnostic plate cross section profiles. Velocity data was differentiated to compute a peak pressure under the diagnostic plate at the central axis of 227 kilobars at 20.1 microseconds, indicating a late time chemical reaction in the LX-17 dead-zone. Substantial motion (>1 m/s) of the diagnostic plate over the dead-zone is followed by detonation region motion within approximately 1.7 microseconds.

  11. Jack Rabbit Pretest 2021E PT3 Photonic Doppler Velocimetry Data Volume 3 Section 1

    Energy Technology Data Exchange (ETDEWEB)

    Hart, M M; Strand, O T; Bosson, S T; Bonner, R A; Hester, D M

    2008-06-25

    The Jack Rabbit Pretest (PT) 2021E PT3 was fired on March 12, 2008 at the Contained Firing Facility, Site 300, Lawrence Livermore National Laboratory. This experiment is part of an effort to determine the properties of LX-17 in a regime where corner-turning behavior and dead-zone formation are not well understood. Photonic Doppler Velocimetry (PDV) measured diagnostic plate velocities confirming the presence of a persistent LX-17 dead-zone formation and the resultant impulse gradient applied under the diagnostic plate. The Jack Rabbit Pretest 2021E PT3, 120 millimeter diameter experiment returned data on all eight PDV probes. The probes measured on the central axis and at 10, 20, 25, 30, 35, 40, 50 millimeters from the central axis. The experiment was shot at an ambient room temperature of 65 degrees Fahrenheit. The earliest PDV signal extinction was 41.7 microseconds at 30 millimeters. The latest PDV signal extinction time was 65.0 microseconds at 10 millimeters. The measured velocity ranged from meters per second to thousands of meters per second. First detonation wave induced jump-off was measured at 40 millimeters at 10.9 microseconds. The PDV data provided an unambiguous indication of dead-zone formation and an impulse gradient applied to the diagnostic plate. The central axis had a last measured velocity of 1636 meters per second. At 40 millimeters the last measured velocity was 2056 meters per second. The low-to-high velocity ratio was 0.80. Velocity data was integrated to compute diagnostic plate cross section profiles. Velocity data was differentiated to compute a peak pressure under the diagnostic plate at the central axis of 64.6 kilobars at 15.7 microseconds. Substantial motion (>1 m/s) of the diagnostic plate over the dead-zone is followed by detonation region motion within approximately 2.2 microseconds.

  12. Finite elements analysis of an underground collector installed by pipe-jacking method

    Science.gov (United States)

    María Díaz-Díaz, Luis; Omer, Joshua; Arias, Daniel; Pando, Luis

    2016-04-01

    This study presents a useful analysis method for estimating simultaneously the stability, stress distribution and groundwater seepage as micro - tunnel is being advanced into the ground. The research is mainly concerned with the results of a case study conducted on a project to create a long industrial collector of effluent network in the east bank of the river Avilés (north coast of Spain). This coastal city has significant port and industrial installations in its environs. The geology of the location comprises Quaternary deposits on both flanks of the estuary and includes different highly variable geotechnical behavior. The industrial effluent network, constructed in the year 2010, has a length of 13.087 km and consists of 1.5 m diameter pipes, reaching a maximum depth of 5.8 m below the surface. Only the first 7.0 km of the collector (south area) were formed using pipe-jacking method whilst the rest were formed in open excavations or surface laid. Using the commercial software RS2, a 2D finite element program for soil and rock application, the ground response to pipe jacking in pipeline installation in Avilés was analyzed. Both axi-symmetric and plane strain analyses were carried out in RS2 to simulate in 3D the ground response to pipe advancement. The results demonstrate how much of deformation there is at ground surface in the immediate vicinity of the pipeline. The main objective is to show the possible patterns of ground subsidence and tunnel stresses to inform designers as to whether the tunnel will be stable and safe.

  13. Kinetics and mechanism study of competitive inhibition of jack-bean urease by baicalin.

    Science.gov (United States)

    Tan, Lirong; Su, Jiyan; Wu, Dianwei; Yu, Xiaodan; Su, Zuqing; He, Jingjin; Wu, Xiaoli; Kong, Songzhi; Lai, Xiaoping; Lin, Ji; Su, Ziren

    2013-01-01

    Baicalin (BA) is the principal component of Radix Scutellariae responsible for its pharmacological activity. In this study, kinetics and mechanism of inhibition by BA against jack-bean urease were investigated for its therapeutic potential. It was revealed that the IC₅₀ of BA against jack-bean urease was 2.74 ± 0.51 mM, which was proved to be a competitive and concentration-dependent inhibition with slow-binding progress curves. The rapid formation of initial BA-urease complex with an inhibition constant of K(i) = 3.89 × 10⁻³ mM was followed by a slow isomerization into the final complex with an overall inhibition constant of K(i)* = 1.47 × 10⁻⁴ mM. High effectiveness of thiol protectors against BA inhibition indicated that the strategic role of the active-site sulfhydryl group of the urease was involved in the blocking process. Moreover, the inhibition of BA was proved to be reversible due to the fact that urease could be reactivated by dithiothreitol but not reactant dilution. Molecular docking assay suggested that BA made contacts with the important activating sulfhydryl group Cys-592 residues and restricted the mobility of the active-site flap. Taken together, it could be deduced that BA was a competitive inhibitor targeting thiol groups of urease in a slow-binding manner both reversibly and concentration-dependently, serving as a promising urease inhibitor for treatments on urease-related diseases.

  14. Survey of foliar monoterpenes across the range of jack pine reveal three widespread chemotypes: implications to host expansion of invasive mountain pine beetle

    Directory of Open Access Journals (Sweden)

    Spencer eTaft

    2015-05-01

    Full Text Available The secondary compounds of pines (Pinus can strongly affect the physiology, ecology and behaviors of the bark beetles (Coleoptera: Curculionidae, Scolytinae that feed on sub-cortical tissues of hosts. Jack pine (Pinus banksiana has a wide natural distribution range in North America (Canada and USA and thus variations in its secondary compounds, particularly monoterpenes, could affect the host expansion of invasive mountain pine beetle (Dendroctonus ponderosae, which has recently expanded its range into the novel jack pine boreal forest. We investigated monoterpene composition of 601 jack pine trees from natural and provenance forest stands representing 63 populations from Alberta to the Atlantic coast. Throughout its range, jack pine exhibited three chemotypes characterized by high proportions of α-pinene, β-pinene, or limonene. The frequency with which the α-pinene and β-pinene chemotypes occurred at individual sites was correlated to climatic variables, such as continentality and mean annual precipitation, as were the individual α-pinene and β-pinene concentrations. However, other monoterpenes were generally not correlated to climatic variables or geographic distribution. Finally, while the enantiomeric ratios of β-pinene and limonene remained constant across jack pine’s distribution, (‒:(+-α-pinene exhibited two separate trends, thereby delineating two α-pinene phenotypes, both of which occurred across jack pine’s range. These significant variations in jack pine monoterpene composition may have cascading effects on the continued eastward spread and success of D. ponderosae in the Canadian boreal forest.

  15. Donkey jack (Equus asinus) semen cryopreservation: studies of seminal parameters, post breeding inflammatory response, and fertility in donkey jennies.

    Science.gov (United States)

    Rota, A; Panzani, D; Sabatini, C; Camillo, F

    2012-11-01

    The aims of this study were (1) to evaluate motility parameters of donkey jack (jack; Equus asinus) semen cryopreserved in INRA-96 (INRA; IMV Technologies, France, 2% egg-yolk enriched) using either glycerol (GLY) or ethylene glycol (EG) as a cryoprotector; (2) to compare in vitro the postthaw re-extension with homologous seminal plasma (SPL) or INRA; (3) to compare fertility in donkey jennies (jennies; Equus asinus) timed artificially inseminated with jack semen cryopreserved using GLY or EG, re-extended with INRA; (4) to compare fertility in jennies timed artificially inseminated with jack semen cryopreserved using GLY re-extended with SPL, INRA, or not re-extended (NN); and (5) to describe some preliminary results of the inflammatory uterine response postbreeding. Semen from two jacks was collected and frozen in an INRA-2% egg yolk extender added of either 2.2% GLY or 1.4% EG. Postthaw motility was evaluated by a computer-assisted motility analyzer. Uterine inflammatory response and fertility were evaluated after artificial insemination (AI) of 13 jennies with frozen-thawed semen, either further extended with INRA (Group GLY-INRA, 13 cycles, and EG-INRA, 8 cycles), or with SPL (Group GLY-SPL, 13 cycles), or not re-extended (GLY-NN, 5 cycles). In each cycle, jennies were bred twice with 500 × 10(6) sperm cells (250 × 10(6) from each jack), at fixed times after induction of ovulation, and uterus was flushed at 6 and 10 h after first and second breeding, respectively. Cells in the recovered fluid were counted and distinguished as polymorphonuclear neutrophils (PMN) or other cell types. Total and progressive motility did not differ between cryoprotectants, but were higher when semen samples were re-extended in INRA, compared with SPL (P donkey semen, and that in the conditions of this study the re-extension in SPL of thawed semen before AI showed a trend toward the improvement of fertility and increased PMN concentration in uterine flushings.

  16. Solar drying of jack fruit almonds Secagem solar de amêndoas de jaca

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    Alexandre J. de M Queiroz

    2011-12-01

    Full Text Available Dryers heated by solar energy have been constructed and used in drying whole and half jack fruit almonds. The samples were dried during the day in direct sun and in the conventional solar dryer prepared for this purpose. Another piece of equipment was built for reception and accumulation of sun energy in a body of water, which was used as a heat source for night drying. The drying with the sun energy was compared with artificial drying. The jack fruit almonds were dried whole, half, with pellicle and without it. The storage of solar energy in water was technically viable for use in night drying. The drying by combining solar dryers in the day and night periods were completed in approximately 35 hours, and were equivalent to artificial drying between 40ºC and 70ºC. Almond cut in half and the pellicle removed reduced the drying time.Secadores com aquecimento por energia solar foram construídos e utilizados em secagens de amêndoas de jaca inteiras e em metades. As secagens no período diurno foram realizadas por exposição direta ao sol e em secador solar convencional, elaborado para este fim. Construiu-se também um equipamento para captação e acumulação de energia solar em uma massa de água, a qual foi utilizada como fonte de calor para realização de secagens no período noturno. As secagens com o uso de energia solar foram comparadas com secagens artificiais. As amêndoas de jaca foram secadas inteiras, em metades, com e sem película. O armazenamento da energia solar em corpo de água mostrou-se viável do ponto de vista técnico para utilização em secagens noturnas. As secagens combinando secadores por energia solar nos períodos diurno e noturno foram concluídas em tempos aproximados de 35 horas e equivaleram a secagens artificiais entre 40 ºC e 70 ºC. O corte das amêndoas e a retirada das películas reduziram o tempo de secagem.

  17. Antimicrobial and Antioxidative Activities of Bioactive Constituents from Hydnophytum formicarum Jack.

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    Virapong Prachayasittikul

    2008-04-01

    Full Text Available Hydnophytum formicarum Jack. (Rubiaceae is a medicinal plant whose tuberspossesses cardiovascular, anti-inflammatory and antiparasitic effects and have been usedfor the treatment of hepatitis, rheumatism and diarrhea. Herein we report the isolation of itsactive constituents and the testing of their antimicrobial activity against 27 strains ofmicroorganisms using an agar dilution method and of their antioxidative activity using theDPPH and SOD assays. The results show that the crude hexane, dichloromethane, ethylacetate and methanol extracts exert such activities. Particularly, the crude ethyl acetateextract exhibits antigrowth activity against many Gram-positive and Gram-negativebacteria with MIC 256 μg/mL. Shewanella putrefaciens ATCC 8671 is completelyinhibited at a lower MIC (128 μg/mL. Interestingly, Corynebacterium diphtheriae NCTC10356 is inhibited by all the tested extracts. Significantly, the ethyl acetate extract is alsothe most potent antioxidant, showing 83.31% radical scavenging activity with IC50 8.40μg/mL in the DPPH assay. The other extracts display weak to moderate antioxidativeMolecules 2008, 13905activities, ranging from 28.60-56.80% radical scavenging. The SOD assay shows thatmethanol extract exhibits the highest activity (74.19% inhibition of superoxide radical.The dichloromethane and ethyl acetate extracts display comparable SOD activity. Thepromising bioactivities of the crude ethyl acetate extract guided the first isolation ofbioactive flavonoid and phenolic compounds: isoliquiritigenin (2, protocatechualdehyde(3, butin (4 and butein (5 from this species. Their structures have been fully establishedby 1D and 2D NMR. In addition, stigmasterol was isolated from the crude hexane anddichloromethane extracts. The antimicrobial and cytotoxic activities of compounds 3-5were evaluated. The tested compounds were inactive against HuCCA-1 and KB cell lines,showing ED50> 10 μg/mL. Protocatechualdehyde (3

  18. Comparison of lodgepole and jack pine resin chemistry: implications for range expansion by the mountain pine beetle, Dendroctonus ponderosae (Coleoptera: Curculionidae).

    Science.gov (United States)

    Clark, Erin L; Pitt, Caitlin; Carroll, Allan L; Lindgren, B Staffan; Huber, Dezene P W

    2014-01-01

    The mountain pine beetle, Dendroctonus ponderosae, is a significant pest of lodgepole pine in British Columbia (BC), where it has recently reached an unprecedented outbreak level. Although it is native to western North America, the beetle can now be viewed as a native invasive because for the first time in recorded history it has begun to reproduce in native jack pine stands within the North American boreal forest. The ability of jack pine trees to defend themselves against mass attack and their suitability for brood success will play a major role in the success of this insect in a putatively new geographic range and host. Lodgepole and jack pine were sampled along a transect extending from the beetle's historic range (central BC) to the newly invaded area east of the Rocky Mountains in north-central Alberta (AB) in Canada for constitutive phloem resin terpene levels. In addition, two populations of lodgepole pine (BC) and one population of jack pine (AB) were sampled for levels of induced phloem terpenes. Phloem resin terpenes were identified and quantified using gas chromatography. Significant differences were found in constitutive levels of terpenes between the two species of pine. Constitutive α-pinene levels - a precursor in the biosynthesis of components of the aggregation and antiaggregation pheromones of mountain pine beetle - were significantly higher in jack pine. However, lower constitutive levels of compounds known to be toxic to bark beetles, e.g., 3-carene, in jack pine suggests that this species could be poorly defended. Differences in wounding-induced responses for phloem accumulation of five major terpenes were found between the two populations of lodgepole pine and between lodgepole and jack pine. The mountain pine beetle will face a different constitutive and induced phloem resin terpene environment when locating and colonizing jack pine in its new geographic range, and this may play a significant role in the ability of the insect to persist in

  19. Comparison of lodgepole and jack pine resin chemistry: implications for range expansion by the mountain pine beetle, Dendroctonus ponderosae (Coleoptera: Curculionidae

    Directory of Open Access Journals (Sweden)

    Erin L. Clark

    2014-02-01

    Full Text Available The mountain pine beetle, Dendroctonus ponderosae, is a significant pest of lodgepole pine in British Columbia (BC, where it has recently reached an unprecedented outbreak level. Although it is native to western North America, the beetle can now be viewed as a native invasive because for the first time in recorded history it has begun to reproduce in native jack pine stands within the North American boreal forest. The ability of jack pine trees to defend themselves against mass attack and their suitability for brood success will play a major role in the success of this insect in a putatively new geographic range and host. Lodgepole and jack pine were sampled along a transect extending from the beetle’s historic range (central BC to the newly invaded area east of the Rocky Mountains in north-central Alberta (AB in Canada for constitutive phloem resin terpene levels. In addition, two populations of lodgepole pine (BC and one population of jack pine (AB were sampled for levels of induced phloem terpenes. Phloem resin terpenes were identified and quantified using gas chromatography. Significant differences were found in constitutive levels of terpenes between the two species of pine. Constitutive α-pinene levels – a precursor in the biosynthesis of components of the aggregation and antiaggregation pheromones of mountain pine beetle – were significantly higher in jack pine. However, lower constitutive levels of compounds known to be toxic to bark beetles, e.g., 3-carene, in jack pine suggests that this species could be poorly defended. Differences in wounding-induced responses for phloem accumulation of five major terpenes were found between the two populations of lodgepole pine and between lodgepole and jack pine. The mountain pine beetle will face a different constitutive and induced phloem resin terpene environment when locating and colonizing jack pine in its new geographic range, and this may play a significant role in the ability of the

  20. Physical and Chemical Characterization Of Greater Yam (Dioscorea Alata) And Jack Bean (Canavalia Ensiformis) - Based Composite Flour

    Science.gov (United States)

    Affandi, D. R.; Praseptiangga, D.; Nirmala, F. S.; Sigit Amanto, B.; Atmaka, W.

    2017-04-01

    Indonesia is a tropical country that has great potential in agriculture. Tubers and legumes as examples of the potential commodities are needed to be more developed. Flour production is one of the best alternatives to be chosen as the downstream stage of the tubers and legumes utilization. Greater yam (Dioscorea alata) and jack bean (Canavalia ensiformis) were used in this study. This study was conducted to determine best formula of composite flour based on physical, chemical, and functional characterization of composite flour produced. Variations of formula used was the ratio of greater yam flour and jack bean flour, which were 85:15 (F1), 70:30 (F2), 55:45 (F3), respectively, and this study was conducted using completely randomized design (CRD). The formula variations didn’t show any significant effect on the water absorption capability, water holding capacity (WHC), oil holding capacity (OHC), swelling power, and starch content of the composite flour. However, the formula variations had a significant influence on the colour, proximate parameters, amylose and amylopectin content, resistant starch content, dietary fibre, total phenol, and antioxidant activity of the composite flour produced. Considering the results of physical, chemical, and functional characteristics of composite flour, formula (F1) was selected as the best composite flour developed from greater yam and jack bean flours.

  1. Fire Regime in Marginal Jack Pine Populations at Their Southern Limit of Distribution, Riding Mountain National Park, Central Canada

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    Jacques C. Tardif

    2016-09-01

    Full Text Available In central Canada, long fire history reconstructions are rare. In a context where both anthropogenic and climate influences on fire regime have changed, Parks Canada has a mandate to maintain ecological integrity. Here we present a fire history derived from fire-scarred jack pine (Pinus banksiana Lamb. trees growing at their southern distribution limit in Riding Mountain National Park (RMNP. In Lake Katherine Fire Management Unit (LKFMU, a subregion within the park, fire history was reconstructed from archival records, tree-ring records, and charcoal in lake sediment. From about 1450 to 1850 common era (CE the fire return intervals varied from 37 to 125 years, according to models. During the period 1864–1930 the study area burned frequently (Weibull Mean Fire Intervals between 2.66 and 5.62 years; this period coincided with the end of First Nations occupation and the start of European settlement. Major recruitment pulses were associated with the stand-replacing 1864 and 1894 fires. This period nevertheless corresponded to a reduction in charcoal accumulation. The current fire-free period in LKFMU (1930–today coincides with RMNP establishment, exclusion of First Nations land use and increased fire suppression. Charcoal accumulation further decreased during this period. In the absence of fire, jack pine exclusion in LKFMU is foreseeable and the use of prescribed burning is advocated to conserve this protected jack pine ecosystem, at the southern margins of its range, and in the face of potential climate change.

  2. Immune-mediated thrombocytopenia associated with angiostrongylus vasorum infection in a jack russell terrier

    Directory of Open Access Journals (Sweden)

    JO'Neill Emma

    2010-07-01

    Full Text Available Abstract A twenty-month-old Jack Russell terrier was presented with a four-day history of thrombocytopenia, echymotic inguinal haemorrhages, coughing and reduced exercise tolerance. Clinical examination revealed several petechial haemorrhages on the gingivae and small echymotic haemorrhages in the inguinal region, along with mild bilateral epistaxis. Haematology confirmed a platelet count of 1.0 × 10/L. Thoracic radiographs revealed a wide-spread mixed alveolar-interstitial lung pattern, apparent throughout the entire lungfield, but particularly marked within the left lung lobes. A presumptive diagnosis of immune-mediated thrombocytopenia was made and the dog was treated with vincristine and immunosuppressive doses of prednisolone. Initially anaemia developed following gastrointestinal haemorrhage; however, after symptomatic treatment the dog showed a marked clinical improvement. Evaluation for an underlying cause of the disease revealed Angiostrongylus vasorum L1 larvae on faecal analysis and treatment with fenbendazole was commenced. The dog made a full clinical recovery with all treatment was withdrawn within five weeks of diagnosis. This is the second report of immune-mediated thrombocytopenia associated with Angiostrongylus vasorum infection and it is the first to be successfully managed. The report highlights that Angiostrongylus vasorum should be considered in young dogs presented with thrombocytopenia.

  3. Supramolecular-jack-like guest in ultramicroporous crystal for exceptional thermal expansion behaviour.

    Science.gov (United States)

    Zhou, Hao-Long; Zhang, Yue-Biao; Zhang, Jie-Peng; Chen, Xiao-Ming

    2015-04-21

    The dynamic behaviours of host frameworks and guest molecules have received much attention for their great relevance with smart materials, but little has been developed to control or understand the host-guest interplay. Here we show that the confined guest can utilize not only molecular static effects but also bulk dynamic properties to control the host dynamics. By virtue of the three-dimensional hinge-like framework and quasi-discrete ultramicropores, a flexible porous coordination polymer exhibits not only drastic guest-modulation effect of the thermal expansion magnitude (up to 422 × 10(-6) K(-1)) and even the anisotropy but also records positive/negative thermal expansion coefficients of +482/-218 × 10(-6) K(-1). Moreover, single-crystal X-ray diffraction analyses demonstrate that the jack-like motion of the guest supramolecular dimers, being analogous to the anisotropic thermal expansion of bulk van der Waals solids, is crucial for changing the flexibility mode and thermal expansion behaviour of the crystal.

  4. Supramolecular-jack-like guest in ultramicroporous crystal for exceptional thermal expansion behaviour

    Science.gov (United States)

    Zhou, Hao-Long; Zhang, Yue-Biao; Zhang, Jie-Peng; Chen, Xiao-Ming

    2015-04-01

    The dynamic behaviours of host frameworks and guest molecules have received much attention for their great relevance with smart materials, but little has been developed to control or understand the host-guest interplay. Here we show that the confined guest can utilize not only molecular static effects but also bulk dynamic properties to control the host dynamics. By virtue of the three-dimensional hinge-like framework and quasi-discrete ultramicropores, a flexible porous coordination polymer exhibits not only drastic guest-modulation effect of the thermal expansion magnitude (up to 422 × 10-6 K-1) and even the anisotropy but also records positive/negative thermal expansion coefficients of +482/-218 × 10-6 K-1. Moreover, single-crystal X-ray diffraction analyses demonstrate that the jack-like motion of the guest supramolecular dimers, being analogous to the anisotropic thermal expansion of bulk van der Waals solids, is crucial for changing the flexibility mode and thermal expansion behaviour of the crystal.

  5. Non-reef environments impact the diversification of extant jacks, remoras and allies (Carangoidei, Percomorpha).

    Science.gov (United States)

    Frédérich, Bruno; Marramà, Giuseppe; Carnevale, Giorgio; Santini, Francesco

    2016-11-16

    Various factors may impact the processes of diversification of a clade. In the marine realm, it has been shown that coral reef environments have promoted diversification in various fish groups. With the exception of requiem sharks, all the groups showing a higher level of diversity in reefs than in non-reef habitats have diets based predominantly on plankton, algae or benthic invertebrates. Here we explore the pattern of diversification of carangoid fishes, a clade that includes numerous piscivorous species (e.g. trevallies, jacks and dolphinfishes), using time-calibrated phylogenies as well as ecological and morphological data from both extant and fossil species. The study of carangoid morphospace suggests that reef environments played a role in their early radiation during the Eocene. However, contrary to the hypothesis of a reef-association-promoting effect, we show that habitat shifts to non-reef environments have increased the rates of morphological diversification (i.e. size and body shape) in extant carangoids. Piscivory did not have a major impact on the tempo of diversification of this group. Through the ecological radiation of carangoid fishes, we demonstrate that non-reef environments may sustain and promote processes of diversification of different marine fish groups, at least those including a large proportion of piscivorous species. © 2016 The Author(s).

  6. Multi-step analysis of Hg2+ ion inhibition of jack bean urease.

    Science.gov (United States)

    Krajewska, Barbara; Zaborska, Wiesława; Chudy, Michał

    2004-06-01

    We performed a multi-step analysis of the inhibition of jack bean urease by Hg(2+) ions that included residual activity measurements after incubation of the enzyme with the metal ion, reactivation of Hg(2+)-inhibited urease, protection of urease with thiol reagents prior to incubation with Hg(2+), progress curve analysis, and spectroscopic assay of thiol groups in urease-Hg(2+) complexes with a cysteine selective agent 5,5'-dithiobis(2-nitrobenzoic acid) (DTNB). Hg(2+) ions were found to form stable complexes with urease that could rapidly be reversed only by the treatment with dithiotreitol, and not by dilution or dialysis. The residual activity data interpreted in terms of the Hill equation revealed the multisite Hg(2+) inhibition of urease, and along with the DTNB thiol-assay they demonstrated the involvement in the reaction with Hg(2+) of six cysteine residues per enzyme subunit, including the active-site flap cysteine. The molar ratios of the inhibitor and enzyme imply that the inhibition consists of the formation of RSHgX complexes, X being a water molecule or an anion. The time-dependent Hg(2+) inhibitory action on urease determined in the system without enzyme preincubation was best described by slow-binding mechanism with the steady-state inhibition constant K(i) = 1.9 nM (+/-10%).

  7. The evolution of large scale dense gas clouds at Jack Rabbit

    Science.gov (United States)

    Huq, Pablo; Spicer, Tom

    2014-11-01

    Typically ammonia and chlorine are stored or transported as pressurized liquefied gas. There have been many accidents involving storage tanks and also accidents during transport. There is a need for accurate evaluation of the hazards associated with accidental releases of ammonia and chlorine which typically result in denser than air clouds which are toxic. The dense gas cloud slumps under the action of gravity into a thin layer with stable density gradients which suppress ambient atmospheric turbulence, and so complicating the physics of mixing. We present similarity analyses of one and two ton experimental releases of ammonia and chlorine at Jack Rabbit. Similarity analysis discriminates inertia-buoyancy and viscous-buoyancy regimes. Sequences of visualizations are used to determine propagation speeds of dense clouds. There is good agreement between observed speeds and the predictions of similarity analysis of the propagation of radial, dense gas clouds. Finally, comparison of one ton with two ton releases for both ammonia and chlorine lead to insights on scaling which are likely to be useful in the design of even larger scale experiments on dense gas clouds arising from similar configurations.

  8. Exophiala xenobiotica infection in cultured striped jack, Pseudocaranx dentex (Bloch & Schneider), in Japan.

    Science.gov (United States)

    Munchan, C; Kurata, O; Wada, S; Hatai, K; Sano, A; Kamei, K; Nakaoka, N

    2009-10-01

    This report describes Exophiala infection in cultured striped jack, Pseudocaranx dentex, in Japan in 2005. One hundred out of 35,000 fish died per day and mortalities continued for 1 month. Diseased fish showed swelling of the abdomen and kidney distension. Numerous septate hyphae, pale brown in colour, were seen in kidney in squash preparations. Histology revealed abundant fungal hyphae and conidia in gill, heart and kidney. Fungal hyphae were accompanied by cell necrosis and influx of inflammatory, mainly mononuclear cells. The fungus isolated from the diseased fish had septate hyphae, pale brown in colour and 1.8-3.0 microm in diameter. Conidiogenous cells were conspicuous annellides, short or cylindrical or fusiform in shape. Conidia were one-celled, ellipsoidal with smooth walls, accumulated in balls at the apices of annellides that tended to slide down, 1.5-2.0 microm in width and 3.0-5.0 microm in length. The fungus was classified into the genus Exophiala based on its morphology and as Exophiala xenobiotica based on the sequences of the ITS 1-5.8S-ITS 2 regions of rDNA. This is the first record of this fungus in a marine fish.

  9. Variations in otolith patterns, sizes and body morphometrics of jack mackerel Trachurus japonicus juveniles.

    Science.gov (United States)

    Kanaji, Y; Kishida, M; Watanabe, Y; Kawamura, T; Xie, S; Yamashita, Y; Sassa, C; Tsukamoto, Y

    2010-10-01

    Variations in otolith patterns, sizes and body morphometrics of jack mackerel Trachurus japonicus juveniles were investigated. Under transmitted light, translucent (W(t)) and opaque otoliths (W(o)) were detected in juveniles collected from Wakasa Bay between July 2005 and April 2006, whereas only opaque otoliths (G(o)) were detected in Goto-nada Sea individuals between May and June 2006. Three groups of juveniles were distinguished based on differences in hatch season, otolith size and growth history, and body morphometrics. As T. japonicus has different spawning seasons according to spawning grounds, each group was estimated to hatch in different waters. Juveniles with W(t) otoliths were considered to have stayed in coastal habitat longer, as the hatch area was estimated to be near Wakasa Bay. Juveniles with W(o) and G(o) otoliths appear to recruit to coastal waters at larger size, since their hatch areas were estimated to be far from each collection area. Larger otoliths of W(t) were attributed to otolith accretion after the second growth flexion, which was observed only for W(t) . Standard length of W(t) fish at the second otolith growth flexion was estimated to correspond to recruitment size to coastal rocky reefs in Wakasa Bay. Body morphometrics were correlated with otolith size after removing body size effect, suggesting that morphological variations of T. japonicus juveniles were also associated with the timing of recruitment to coastal habitat.

  10. A CHRNE frameshift mutation causes congenital myasthenic syndrome in young Jack Russell Terriers.

    Science.gov (United States)

    Rinz, Caitlin J; Lennon, Vanda A; James, Fiona; Thoreson, James B; Tsai, Kate L; Starr-Moss, Alison N; Humphries, H Dale; Guo, Ling T; Palmer, Anthony C; Clark, Leigh Anne; Shelton, G Diane

    2015-12-01

    Congenital myasthenic syndromes (CMSs) are a group of rare genetic disorders of the neuromuscular junction resulting in structural or functional causes of fatigable weakness that usually begins early in life. Mutations in pre-synaptic, synaptic and post-synaptic proteins have been demonstrated in human cases, with more than half involving aberrations in nicotinic acetylcholine receptor (AChR) subunits. CMS was first recognized in dogs in 1974 as an autosomal recessive trait in Jack Russell Terriers (JRTs). A deficiency of junctional AChRs was demonstrated. Here we characterize a CMS in 2 contemporary cases of JRT littermates with classic clinical and electromyographic findings, and immunochemical confirmation of an approximately 90% reduction in AChR protein content. Loci encoding the 5 AChR subunits were evaluated using microsatellite markers, and CHRNB1 and CHRNE were identified as candidate genes. Sequences of the splice sites and exons of both genes revealed a single base insertion in exon 7 of CHRNE that predicts a frameshift mutation and a premature stop codon. We further demonstrated this pathogenic mutation in CHRNE in archival tissues from unrelated JRTs studied 34 years ago.

  11. Central and peripheral neurotoxicity induced by the Jack Bean Urease (JBU) in Nauphoeta cinerea cockroaches.

    Science.gov (United States)

    Carrazoni, Thiago; de Avila Heberle, Marines; Perin, Ana Paula Artusi; Zanatta, Ana Paula; Rodrigues, Polyana Veloso; Dos Santos, Fabiola Duarte Machado; de Almeida, Carlos Gabriel Moreira; Vaz Breda, Ricardo; Dos Santos, Douglas Silva; Pinto, Paulo Marcos; da Costa, Jaderson Costa; Carlini, Celia Regina; Dal Belo, Cháriston André

    2016-08-10

    Ureases of Canavalia ensiformis are natural insecticides with a still elusive entomotoxic mode of action. We have investigated the mechanisms involved in the neurotoxicity induced by Jack Bean Urease (JBU) in Nauphoeta cinerea (Olivier). To carry out this study we have employed biochemical and neurophysiological analysis of different cockroach organ systems. The injection of the insects with JBU (0.75-6μg/g animal), although not lethal within 24h, caused significant inhibition of the brain acetylcholinesterase activity (60±5%, pcockroaches (pcockroaches, an effect prevented by bicuculline (5μg/g) (pcockroaches probably by interfering with the cholinergic neurotransmission. The neuromuscular blocking activity of JBU suggests an interplay between acetylcholine and GABA signaling. The search for novel natural molecules with insecticide potential has become a necessity more than an alternative. Understanding the mode of action of candidate molecules is a crucial step towards the development of new bioinsecticides. The present study focused on the neurotoxicity of Canavalia ensiformis urease, a natural insecticide, in cockroaches and revealed interferences on the cholinergic, octopaminergic and GABA-ergic pathways as part of its entomotoxic mode of action. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

  12. Immune-mediated thrombocytopenia associated with angiostrongylus vasorum infection in a Jack Russell terrier.

    Science.gov (United States)

    Jo'neill, Emma; Acke, Els; Tobin, Emma; McCarthy, Grainne

    2010-07-01

    A twenty-month-old Jack Russell terrier was presented with a four-day history of thrombocytopenia, echymotic inguinal haemorrhages, coughing and reduced exercise tolerance. Clinical examination revealed several petechial haemorrhages on the gingivae and small echymotic haemorrhages in the inguinal region, along with mild bilateral epistaxis. Haematology confirmed a platelet count of 1.0 × 10/L. Thoracic radiographs revealed a wide-spread mixed alveolar-interstitial lung pattern, apparent throughout the entire lungfield, but particularly marked within the left lung lobes. A presumptive diagnosis of immune-mediated thrombocytopenia was made and the dog was treated with vincristine and immunosuppressive doses of prednisolone. Initially anaemia developed following gastrointestinal haemorrhage; however, after symptomatic treatment the dog showed a marked clinical improvement. Evaluation for an underlying cause of the disease revealed Angiostrongylus vasorum L1 larvae on faecal analysis and treatment with fenbendazole was commenced. The dog made a full clinical recovery with all treatment was withdrawn within five weeks of diagnosis. This is the second report of immune-mediated thrombocytopenia associated with Angiostrongylus vasorum infection and it is the first to be successfully managed. The report highlights that Angiostrongylus vasorum should be considered in young dogs presented with thrombocytopenia.

  13. USE OF FULL FACE SLURRY SHIELD FOR PIPE JACKING IN HONG KONG'S RECLAIMED LAND%全断面泥浆式盾构在香港填海地区顶管施工中的应用

    Institute of Scientific and Technical Information of China (English)

    应海民; 潘新华

    2003-01-01

    Pipe jacking has become a popular method in drainage construction in Hong Kong. However, the varied ground conditions encountered in reclaimed land may pose severe problems to pipe jacking operation. This paper presents the experience of using the full face slurry shield for pipe jacking in a reclaimed area. The study shows that the full face slurry shield with a rock cutting head performs satisfactorily. To ensure the machine can work effectively in all ground conditions, other factors need to be considered including the rock cutting head being worn away, the hitting of under ground structures, the sustainability of jacked pipes alignment, the associated ground settlement and the damage to the jacked pipes caused by the jacking pressure.

  14. The effect of eurycoma longifolia jack on spermatogenesis in estrogen-treated rats

    Directory of Open Access Journals (Sweden)

    Norhazlina Abdul Wahab

    2010-01-01

    Full Text Available INTRODUCTION: There is little data concerning the ability of Eurycoma longifolia Jack (EL to reverse the inhibitory effects of estrogen on testosterone production and spermatogenesis. The aim of the present study was to determine the effect of EL on testicular histology and sperm count in estrogen-treated male rats. METHODS: Adult male Sprague-Dawley rats weighing 200-250 g were divided into four groups of six rats each. Group A (control was given solvent in the same manner as the treated groups were given EL. Group B was treated with EL (8 mg/kg body weight orally. Group C was treated with estradiol (E2 (intramuscular dose of 500 μg/kg body weight, and group D received a combined treatment of oral EL and intramuscular E2. After fourteen consecutive days of treatment, rats from all groups were sacrificed and subjected to spermatogenic and epididymal sperm cell counts. RESULTS: The spermatogenic cell count in the E2-treated group was significantly decreased as compared to the control (p < 0.05 and EL+E2-treated groups (p < 0.05. A similar finding was found for the epididymal sperm count; the E2-treated group had a significant decrease in the count compared to the control (p < 0.05 and EL+E2-treated groups (p < 0.05. Rats that were treated with EL alone exhibited significantly higher sperm counts and sperm motility when compared to the control group (p < 0.05. CONCLUSIONS: EL extract acts as a potential agent for reversing the effects of estrogen by increasing spermatogenesis and sperm counts in rats after fourteen consecutive days of treatment.

  15. Strength of Jack-Beams with slender webs and mono-symmetric sections

    Directory of Open Access Journals (Sweden)

    M. Massoud El Sa’adawy

    2015-04-01

    Full Text Available Jack-Beams (J-Beams are used to support discontinued columns that do not extend to lower floors, satisfying space requirements in large stores and workshops. Often large concentrated loads are acting on the laterally unsupported J-Beam top. Built-up I-sections are often used in designing J-Beams. Lateral-torsional buckling (LTB is crucial in designing J-Beams as it is one of the main requirements in controlling the ultimate bending strength of steel J-Beams carrying loads on top flange. This study investigates the ultimate bending strength of commonly used J-Beams with different sections and classes including slender webs. A numerical model is developed to accurately estimate the ultimate load of J-Beams. The strengths of the selected J-Beams are calculated for different models of unsupported lengths and different section types according to detailed finite element model (FEM for this type of system. The goal is to investigate the performance of the J-Beams for the selected section types and beam lengths. Single concentrated loads at the top flange of the J-Beams are applied at the FE models. Imperfections of different values are implemented to examine their sensitivity and to find out their effect on the LTB of J-Beams at failure, and hence, their effect on the ultimate strength of J-Beams. The study also introduces simplified procedure and gives recommendations for designing J-Beams using the numerical results of the selected sections.

  16. Inhibition of jack bean urease by tetrachloro-o-benzoquinone and tetrachloro-p-benzoquinone.

    Science.gov (United States)

    Kot, Mirosława; Zaborska, Wiesława

    2006-10-01

    Tetrachloro-o-benzoquinone (TCoBQ) and tetrachloro-p-benzoquinone (TCpBQ) were studied as inhibitors of jack bean urease in 20 mM phosphate buffer, pH 7.0, 1 mM EDTA, 25 degrees C. The mechanisms of inhibition were evaluated by analysis of the progress curves obtained with two procedures: the reaction initiated by addition of the enzyme and the reaction initiated by addition of the substrate after preincubation of the enzyme with the inhibitor. The obtained results were characteristic of slow-binding inhibition. The effects of different inhibitor concentrations on the initial and steady-state velocities obeyed the relationships of two-step enzyme-inhibitor interaction, qualified as mechanism B. It was found that TCoBQ and TCpBQ are strong urease inhibitors. TCpBQ is more effective than TCoBQ with the overall inhibition constant of K(i)* = 4.5 x 10(-7) mM. The respective inhibition constant of TCoBQ was equal to: K(i)* = 2.4 x 10(-6) mM. The protective experiment proved that the urease active site is involved in the tetrachlorobenzoquinone inhibition process. High effectiveness of thiol protectors against inhibition by TCoBQ and TCpBQ indicates the strategic role of the active site sulfhydryl group in the blocking process. The stability of the complexes: urease-TCoBQ and urease-TCpBQ was tested in two ways: by dilution or addition of dithiothreitol. No recovery of urease activity bound in the urease-inhibitor complexes proves that the complexes are stable and strong.

  17. Iminothiazoline-Sulfonamide Hybrids as Jack Bean Urease Inhibitors; Synthesis, Kinetic Mechanism and Computational Molecular Modeling.

    Science.gov (United States)

    Saeed, Aamer; Mahmood, Shams-Ul; Rafiq, Muhammad; Ashraf, Zaman; Jabeen, Farukh; Seo, Sung-Yum

    2016-03-01

    The present work reports the synthesis of several 2-iminothiazoline derivatives of sulfanilamide (3a-j) as inhibitors of jack bean ureases. The title compounds were synthesized by the heterocyclization of sulfanilamide thioureas with propragyl bromide in dry ethanol in the presence of 1,8-Diazabicyclo[5.4.0]undec-7-ene as a base. All of the compounds showed higher urease inhibitory activity than the standard thiourea. The compounds (3h) and (3i) exhibited excellent enzyme inhibitory activity with IC50 0.064 and 0.058 μm, respectively, while IC50 of thiourea is 20.9 μm. The kinetic mechanism analyzed by Dixon plot showed that compound (3h) is a mixed-type inhibitor while (3i) is a competitive one. Docking studies suggested that Asp633, Ala636, His492, Ala440, Lue523, Asp494 and Arg439 are the major interacting residues in the binding site of the protein and may have an instrumental role in the inhibition of enzyme's function. 2-iminothiazoline analogues (3a-j) showed good docking score (-10.6466 to -8.7215 Kcal/mol) and binding energy (London dG ranging from -14.4825 to -10.4087 Kcal/mol) which is far better than the standard thiourea (binding score in S field -4.5790 Kcal/mol London dG -4.7726 Kcal/mol). Our results inferred compound (3i) may serve as a structural model for the design of most potent urease inhibitors.

  18. An intrinsically disordered protein, CP12: jack of all trades and master of the Calvin cycle.

    Science.gov (United States)

    Gontero, Brigitte; Maberly, Stephen C

    2012-10-01

    Many proteins contain disordered regions under physiological conditions and lack specific three-dimensional structure. These are referred to as IDPs (intrinsically disordered proteins). CP12 is a chloroplast protein of approximately 80 amino acids and has a molecular mass of approximately 8.2-8.5 kDa. It is enriched in charged amino acids and has a small number of hydrophobic residues. It has a high proportion of disorder-promoting residues, but has at least two (often four) cysteine residues forming one (or two) disulfide bridge(s) under oxidizing conditions that confers some order. However, CP12 behaves like an IDP. It appears to be universally distributed in oxygenic photosynthetic organisms and has recently been detected in a cyanophage. The best studied role of CP12 is its regulation of the Calvin cycle responsible for CO2 assimilation. Oxidized CP12 forms a supramolecular complex with two key Calvin cycle enzymes, GAPDH (glyceraldehyde-3-phosphate dehydrogenase) and PRK (phosphoribulokinase), down-regulating their activity. Association-dissociation of this complex, induced by the redox state of CP12, allows the Calvin cycle to be inactive in the dark and active in the light. CP12 is promiscuous and interacts with other enzymes such as aldolase and malate dehydrogenase. It also plays other roles in plant metabolism such as protecting GAPDH from inactivation and scavenging metal ions such as copper and nickel, and it is also linked to stress responses. Thus CP12 seems to be involved in many functions in photosynthetic cells and behaves like a jack of all trades as well as being a master of the Calvin cycle.

  19. Fishery of the Green Jack Caranx caballus (Osteichytes: Carangidae in Las Perlas Archipelago, Pacific Panama

    Directory of Open Access Journals (Sweden)

    James M. Mair

    2012-09-01

    Full Text Available Green Jacks, Caranx caballus, are distributed along the Eastern Pacific coast. In Panama, C. caballus was heavily fished around Las Perlas Archipelago to sustain local markets until 2007, when the archipelago was declared a marine protected area. This first study in Panama, analyzed a sample of 4 990 individuals from Las Perlas, obtained monthly from June 2005 to June 2006, from landings at the central fish market. Average total length was 36.1±6.4cm and optimum length 38.9cm. Approximately 68% of fish lengths were within ±10% of the optimal length but only six (15% were considered mega-spawners. The von Bertalanffy parameters describe a long-lived and fast growing species, while mortality rates revealed that C. caballus is under high fishing pressure. Standard length at which half of the population is mature was 38.8cm, and the size at which individuals matured massively, 33cm. Only 10-13% of the fish were immature. C. caballus reproduces two to three times per year, with peaks in December, April, and probably September, and recruits to the population at least twice per year. Catch per unit effort (CPUE was best predicted by minimum annual values of the Multivariate ENSO/ LNSO Index (MEI (R²=0.54. Results show that C. caballus in Pacific Panama is overfished. We recommend the raising of the minimum capture/landing size of this species in order to increase the proportion of megaspawners in the population and guarantee the sustainability of this resource.

  20. Multiple Hadean crystallization and reworking events preserved in individual Jack Hills zircon grains

    Science.gov (United States)

    Bellucci, Jeremy; Nemchin, Alexander; Whitehouse, Martin; Snape, Joshua

    2017-04-01

    Five Hadean (>3.9 Ga) aged zircon grains from the Jack Hills metasedimentary belt have been investigated by an improved secondary ion mass spectrometry scanning ion image technique. This technique has the ability to obtain accurate and precise full U-Pb systematics on a scale document the spatial distribution of U, Th and Pb. All five of the grains investigated here have complex cathodoluminescence patterns that correlate to different U, Th, and Pb concentration domains. The age determinations for these different chemical zones indicate multiple reworking events that are preserved in each grain and have affected the primary crystalized zircon on the scale of <10 μm, smaller than traditional ion microprobe spot analyses. These new scanning ion images and age determinations suggest that roughly half, if not all, previous analyses, including those of trace elements and various isotope systems, could have intersected several domains of unfractured zircon, thus making the interpretation of any trace element, Hf, or O isotopic data tenuous. Lastly, all of the grains analyzed here preserve at least two distinguishable 207Pb/206Pb ages. These ages are preserved in core-rim and/or complex internal textural relationships. These secondary events took place during at ca. 4.3, 4.2, 4.1, 4.0, and 3.7 Ga potentially indicating a sequence of magmatic and/or metamorphic events that recycled some volume of early crust during the Hadean and into Paleo- to Mesoarchean several times with an apparent periodicity of ca. 100 Ma.

  1. Potency and Ecological Habitat of Tabat Barito (Ficus deltoidea Jack in Natural Forest, South Kalimantan

    Directory of Open Access Journals (Sweden)

    yudi firmanul arifin

    2015-07-01

    Full Text Available Indonesia is rich of medicinal plants, one of which is Tabat Barito (Ficusdeltoidea Jack. The utilization of tabat barito is mainly  for women's health and until now its use continues to increase, especially for traditional medicines, but efforts for cultivation have not been much done. The first step for cultivation is to understand the potential and ecological habitat of this plant. This research was conducted in South Kalimantan, with three villages as the object based on a survey conducted earlier, i.e. the Village of Hamak in Hulu Sungai Selatan District and the Village of Auh and Sungsum in Balangan District. Data was collected using a survey method to create a transect in the areas where Tabat Barito isfound. The results showed Tabat Barito potential  in the two districts is quite rare, between 35 -50 clumps/ha. Tabat Barito was found in open areas in natural forest with elevation of 200-350 m above sea level, humidity of 36-54%, air temperature of 38-43 °C, soil temperature of 25 oC. vegetation found to be associated with Tabat Barito in Hamak Village is sasirihan (Ficussp. and beringin (Ficusbenyamina, while in Auh and Sangsum Village is mali-mali (Leeaindica, beringin (F. benyamina, and jambun (Eugenia sp.. The genus of Ficus is the dominant vegetation and significant association with Tabat Barito. The diversity of vegetation, in the Hamak Village is 1.63 higher than Auh and Sungsum Village of 1.16. The common species found in the two districts that have Tabat Barito of 28.57%.

  2. Burn Severity Dominates Understory Plant Community Response to Fire in Xeric Jack Pine Forests

    Directory of Open Access Journals (Sweden)

    Bradley D. Pinno

    2016-04-01

    Full Text Available Fire is the most common disturbance in northern boreal forests, and large fires are often associated with highly variable burn severities across the burnt area. We studied the understory plant community response to a range of burn severities and pre-fire stand age four growing seasons after the 2011 Richardson Fire in xeric jack pine forests of northern Alberta, Canada. Burn severity had the greatest impact on post-fire plant communities, while pre-fire stand age did not have a significant impact. Total plant species richness and cover decreased with disturbance severity, such that the greatest richness was in low severity burns (average 28 species per 1-m2 quadrat and plant cover was lowest in the high severity burns (average 16%. However, the response of individual plant groups differed. Lichens and bryophytes were most common in low severity burns and were effectively eliminated from the regenerating plant community at higher burn severities. In contrast, graminoid cover and richness were positively related to burn severity, while forbs did not respond significantly to burn severity, but were impacted by changes in soil chemistry with increased cover at pH >4.9. Our results indicate the importance of non-vascular plants to the overall plant community in this harsh environment and that the plant community is environmentally limited rather than recruitment or competition limited, as is often the case in more mesic forest types. If fire frequency and severity increase as predicted, we may see a shift in plant communities from stress-tolerant species, such as lichens and ericaceous shrubs, to more colonizing species, such as certain graminoids.

  3. Pengaruh Kombinasi Media Tanam dan Pemupukan terhadap Pertumbuhan Biji Tumbuhan Sarang Semut (Myrmecodia tuberosa Jack.

    Directory of Open Access Journals (Sweden)

    Yanti Puspita Sari

    2016-03-01

    Full Text Available Anthill plant (Myrmecodia tuberosa Jack. or sarang semut is a native plant epiphytes from Indonesia. Anthill plants used as a medicinal because contains compounds active such as flavonoids, tannins and polyphenols that are beneficial to the human body. The aims of study to determine the influence of the media type of planting and the best of fertilization on the growth of anthill plants. This study consisted of two treatment are the first treatment plant seed germination anthill on different media of treatments that husk fuel, cocopeat, fern roots and moss. The second treatment is growth plant of anthill are using completely randomized design (CRD with two factors different. The first factor is the growing media with 4 levels of fuel treatments, husk fuel, cocopeat, fern roots and moss. The second factor is a fertilizer with a second level of treatment that is with and without fertilizer (Gandasil D 2 g/L. Influence significantly of treatment we used Duncan test (DMRT level of 95%. The results of study in the first treatment, anthill plant can germinate 100% in all treatment media. In the second treatment, the use of growing media and fertilizer significantly influenced the increase of plant height, leaf number and leaf area. The average of plant height in moss media with the addition of fertilizer of 35.75 mm, the highest number of leaves from all treatment media with the addition of fertilizer of 2,00 strands, the largest leaf area from cocopeat media with the addition of fertilizer of 77,02 mm2, and the increase of tubers diameter found in cocopeat media with the addition of fertilizer of 4.13 mm.

  4. Soil-Structure Interaction Analysis of Jack-up Platforms Subjected to Monochrome and Irregular Waves

    Institute of Scientific and Technical Information of China (English)

    Maziar Gholami KORZANI; Ali Akbar AGHAKOUCHAK

    2015-01-01

    As jack-up platforms have recently been used in deeper and harsher waters, there has been an increasing demand to understand their behaviour more accurately to develop more sophisticated analysis techniques. One of the areas of significant development has been the modelling of spudcan performance, where the load-displacement behaviour of the foundation is required to be included in any numerical model of the structure. In this study, beam on nonlinear winkler foundation (BNWF) modeling—which is based on using nonlinear springs and dampers instead of a continuum soil media—is employed for this purpose. A regular monochrome design wave and an irregular wave representing a design sea state are applied to the platform as lateral loading. By using the BNWF model and assuming a granular soil under spudcans, properties such as soil nonlinear behaviour near the structure, contact phenomena at the interface of soil and spudcan (such as uplifting and rocking), and geometrical nonlinear behaviour of the structure are studied. Results of this study show that inelastic behaviour of the soil causes an increase in the lateral displacement at the hull elevation and permanent unequal settlement in soil below the spudcans, which are increased by decreasing the friction angle of the sandy soil. In fact, spudcans and the underlying soil cause a relative fixity at the platform support, which changes the dynamic response of the structure compared with the case where the structure is assumed to have a fixed support or pinned support. For simulating this behaviour without explicit modelling of soil-structure interaction (SSI), moment-rotation curves at the end of platform legs, which are dependent on foundation dimensions and soil characteristics, are obtained. These curves can be used in a simplified model of the platform for considering the relative fixity at the soil-foundation interface.

  5. 基于SolidWorks的剪式千斤顶设计及验证%Jack Design and Verification Based on SolidWorks Scissors

    Institute of Scientific and Technical Information of China (English)

    舒丛丛; 陈建政; 姚培

    2015-01-01

    剪式千斤顶作为一种常见的起重设备,主要用于顶起小吨位的汽车。文章将基于SolidWorks软件对剪式千斤顶进行设计,同时利用SolidWorks的motion模块对所设计的剪式千斤顶进行验证,最后利用SolidWorks的simulation模块对千斤顶的关键部件进行强度分析。充分利用SolidWorks的优势,以求达到提高设计效率和降低设计成本的目的。%Scissor jack as a common lifting equipment, mainly for jacking small tonnage of car . This article will be based on the SolidWorks software to design scissor jack, while taking advantage of SolidWorks motion module verify the design of scissor jack. Finally,use the SolidWorks simulation module to analysis the strength of scissor jack. Make full use of the advantages of SolidWorks, in order to achieve the purpose of improving design efifciency and reduce design costs.

  6. Habitat Choice and Temporal Variation Alter the Balance between Adaptation by Genetic Differentiation, a Jack-of-All-Trades Strategy, and Phenotypic Plasticity.

    Science.gov (United States)

    Scheiner, Samuel M

    2016-05-01

    Confronted with variable environments, species adapt in several ways, including genetic differentiation, a jack-of-all-trades strategy, or phenotypic plasticity. Adaptive habitat choice favors genetic differentiation and local adaptation over a generalist, jack-of-all-trades strategy. Models predict that, absent plasticity costs, variable environments generally favor phenotypic plasticity over genetic differentiation and being a jack-of-all-trades generalist. It is unknown how habitat choice might affect the evolution of plasticity. Using an individual-based simulation model, I explored the interaction of choice and plasticity. With only spatial variation, habitat choice promotes genetic differentiation over a jack-of-all-trades strategy or phenotypic plasticity. In the absence of plasticity, temporal variation favors a jack-of-all-trades strategy over choice-mediated genetic differentiation; when plasticity is an option, it is favored. This occurs because habitat choice creates a feedback between genetic differentiation and dispersal rates. As demes become better adapted to their local environments, the effective dispersal rate decreases, because more individuals have very high fitness and so choose not to disperse, reinforcing local stabilizing selection and negating selection for plasticity. Temporal variation breaks that feedback. These results point to a potential data paradox: systems with habitat choice may have the lowest actual movement rates. The potential for adaptive habitat choice may be very common, but its existence may reduce observed dispersal rates enough that we do not recognize systems where it may be present, warranting further exploration of likely systems.

  7. Jack-and-master trait responses to elevated CO2 and N: a comparison of native and introduced Phragmites australis.

    Directory of Open Access Journals (Sweden)

    Thomas J Mozdzer

    Full Text Available Global change is predicted to promote plant invasions world-wide, reducing biodiversity and ecosystem function. Phenotypic plasticity may influence the ability of introduced plant species to invade and dominate extant communities. However, interpreting differences in plasticity can be confounded by phylogenetic differences in morphology and physiology. Here we present a novel case investigating the role of fitness trait values and phenotypic plasticity to global change factors between conspecific lineages of Phragmites australis. We hypothesized that due to observed differences in the competitive success of North American-native and Eurasian-introduced P. australis genotypes, Eurasian-introduced P. australis would exhibit greater fitness in response to global change factors. Plasticity and plant performance to ambient and predicted levels of carbon dioxide and nitrogen pollution were investigated to understand how invasion pressure may change in North America under a realistic global change scenario. We found that the introduced Eurasian genotype expressed greater mean trait values in nearly every ecophysiological trait measured--aboveground and belowground--to elevated CO(2 and nitrogen, outperforming the native North American conspecific by a factor of two to three under every global change scenario. This response is consistent with "jack and master" phenotypic plasticity. We suggest that differences in plant nitrogen productivity, specific leaf area, belowground biomass allocation, and inherently higher relative growth rate are the plant traits that may enhance invasion of Eurasian Phragmites in North America. Given the high degree of genotypic variability within this species, and our limited number of genotypes, our results must be interpreted cautiously. Our study is the first to demonstrate the potential importance of jack-and-master phenotypic plasticity in plant invasions when facing imminent global change conditions. We suggest that

  8. Effects of Medium Constituents on Growth and Canthinone Accumulation in Cell Suspension Cultures of Eurycoma longifolia Jack

    Directory of Open Access Journals (Sweden)

    LUTHFI AZIZ MAHMUD SIREGAR

    2009-06-01

    Full Text Available The effect of various macronutrients, micronutrients and sucrose on growth and canthinone alkaloid production in cell suspension cultures of Pasak Bumi (Eurycoma longifolia Jack was investigated. The optimum macronutrients and micronutrients content for the high alkaloid production of E. longifolia Jack was different to that found in the Murashige and Skoog (MS medium. The highest amount of alkaloids, 9-hydroxycanthin-6-one and 9-methoxycanthin-6-one, could be obtained from E. longifolia Jack cells cultured in modified MS liquid medium that containing macronutrients: 21.50 mM NH4NO3, 14.25 mM KNO3, 7.50 mM CaCl2•2H2O, 2.50 mM MgSO4•7H2O, 1.45 mM KH2PO4, while content of micronutrients was 0.233 mM FeNa-EDTA, 0.215 mM MnSO4•4H2O and without CuSO4•5H2O. Increased sucrose concentration to 4.00% (w/v in modified MS liquid medium could increase total of two-alkaloid. The modification of macronutrients and micronutrients concentration based the optimum production of biomass was obtained MSBs medium that producing high biomass but also increasing the production of 9-hydroxycanthin-6-one. The modification of macronutrients or macronutrients and micronutrients based the optimum total of two-alkaloid was obtained MSC and MSD medium that producing low fresh weight but producing the high 9-hydroxycanthin-6-one.

  9. Was Ezra Pound a New Historicist? Poetry and Poetics in the Age of Globalization%庞德是新历史主义者吗?——全球化时代的诗歌与诗学

    Institute of Scientific and Technical Information of China (English)

    黄运特

    2006-01-01

    本文探讨了庞德的诗学与新历史主义批评方法论之间的亲缘类同性.这一类同性不是简单地归于庞德与新历史主义之间的关系,而是作为一种结构性原则存在于各自的作品之中:无论在庞德的诗歌中还是在新历史主义的批评著作中,大量材料组合模式常常体现了透明细节之间存在的明显的亲缘类同性.当我们关注另一层次上的相似性时,这一结构模式所具有的更为深广的涵义更加明显:庞德和新历史主义的著作都相应地具有全球性,两者都倾向于使用透明细节来展示社会或文化的宏大图景--按照庞德的说法,即要用"密集的细节"来捕捉不断复现的根本性的文明结构;按照新历史主义的说法,即要将文本线索的微小结构置于显微镜下以展示"整个艺术家与整一化的社会之间壮观的对峙"图景.这种对于从地区性细节走向全球性宏景的关注把庞德和新历史主义置于当前全球化话语的中心.庞德毕生致力于设计一种泛文化蓝图的努力与近来新历史主义朝文化可动性研究的转向进一步表明,新历史主义与庞德不仅有着相同的文化诗学观,而且有着相同的诗歌观,即诗歌可以跨文化传播和交流其意义.%This essay explores the family resemblance between the poetics of Ezra Pound and the critical methodology of New Historicism. I argue that such a resemblance does not simply pertain to the relationship between Pound and the New Historicists; it alternatively functions as an organizational principle in each of their works: whether in Pound's poetry or in a New Historicist's critical work, the vast array of materials is often assembled by means of an apparent family resemblance among the Luminous Details. The larger implication of this compositional method becomes clear when we consider a resemblance at another level: both Pound's and the New Historicist's works are global in scale-they tend to use

  10. Application of a simple calorimetric data analysis on the binding study of cyanide ions by Jack bean urease

    Institute of Scientific and Technical Information of China (English)

    G.Rezaei; Behbehani; A.A.Saboury; M.Mohebbian; S.Ghammamy

    2010-01-01

    Cyanide ion was studied as an effector of Jack bean urease(JBU) at 300 K in 30 mmol/LTris buffer,pH 7 by isothermal titration calorimetry(ITC).The simple novel model was used for CN~- + JBU interaction over the whole range of CN~- concentrations.The binding parameters recovered from the simple novel model were attributed to the cyanide ion interaction.It was found that cyanide ion acted as a noncooperative inhibitor of JBU,and there is a set of 12 identical and independent binding sites for CN~- ions.The...

  11. Automated detection and mapping of crown discolouration caused by jack pine budworm with 2.5 m resolution multispectral imagery

    Science.gov (United States)

    Leckie, Donald G.; Cloney, Ed; Joyce, Steve P.

    2005-05-01

    Jack pine budworm ( Choristoneura pinus pinus (Free.)) is a native insect defoliator of mainly jack pine ( Pinus banksiana Lamb.) in North America east of the Rocky Mountains. Periodic outbreaks of this insect, which generally last two to three years, can cause growth loss and mortality and have an important impact ecologically and economically in terms of timber production and harvest. The jack pine budworm prefers to feed on current year needles. Their characteristic feeding habits cause discolouration or reddening of the canopy. This red colouration is used to map the distribution and intensity of defoliation that has taken place that year (current defoliation). An accurate and consistent map of the distribution and intensity of budworm defoliation (as represented by the red discolouration) at the stand and within stand level is desirable. Automated classification of multispectral imagery, such as is available from airborne and new high resolution satellite systems, was explored as a viable tool for objectively classifying current discolouration. Airborne multispectral imagery was acquired at a 2.5 m resolution with the Multispectral Electro-optical Imaging Sensor (MEIS). It recorded imagery in six nadir looking spectral bands specifically designed to detect discolouration caused by budworm and a near-infrared band viewing forward at 35° was also used. A 2200 nm middle infrared image was acquired with a Daedalus scanner. Training and test areas of different levels of discolouration were created based on field observations and a maximum likelihood supervized classification was used to estimate four classes of discolouration (nil-trace, light, moderate and severe). Good discrimination was achieved with an overall accuracy of 84% for the four discolouration levels. The moderate discolouration class was the poorest at 73%, because of confusion with both the severe and light classes. Accuracy on a stand basis was also good, and regional and within stand

  12. Never stationary: examining the influence of creative destruction in the work of Jack Kerouac and Gary Snyder

    OpenAIRE

    Madsen, Freyja

    2013-01-01

    In this research I examine the influence that creative destruction had upon the work of Jack Kerouac and Gary Snyder. My research aims to extend the work done by Philip Fisher in Still the New World: American Literature in a Culture of Creative Destruction, by interrogating how Kerouac and Snyder’s work was influenced by creative destruction in the post-war American economic climate. I will suggest that both the form and the content of Kerouac’s prose replicate these economic patterns, reflec...

  13. Calidad microbiológica y organoléptica de vainilla (Vainilla planifolia Jacks) beneficiada artesanalmente.

    OpenAIRE

    2013-01-01

    La vainilla (Vanilla planifolia Jacks) es un recurso fitogenético originario de México, el fruto llamado vaina, tiene que ser beneficiado para ser consumido. En este trabajo se evaluó la calidad microbiológica de la vainilla por la presencia de enterobacterias, coliformes totales, mohos y levaduras, así como la cantidad de compuestos fenólicos por técnicas de HPLC (ácido 4-hidroxibenzóico, 4-hidroxibenzaldehído, ácido vainillínico y vainillina) durante el proceso de beneficio artesanal a fin ...

  14. EAARL-B Topography—Big Thicket National Preserve: Neches Bottom and Jack Gore Baygall Unit, Texas, 2014

    Science.gov (United States)

    Fredericks, Alexandra M.; Kranenburg, Christine J.; Nagle, David B.

    2015-01-01

    These mosaics, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provide lidar-derived first-surface and bare-earth topography for the Neches Bottom and Jack Gore Baygall Unit of Big Thicket National Preserve in Texas. Elevation measurements were acquired by the second-generation Experimental Advanced Airborne Research Lidar (EAARL-B) on January 11, 15, 17, 18, 21, 23, 25, and 29, 2014, in cooperation with the National Park Service – Gulf Coast Network.

  15. Debris flow from 2012 failure of moraine-dammed lake, Three Fingered Jack volcano, Mount Jefferson Wilderness, Oregon

    Science.gov (United States)

    Sherrod, David R.; Wills, Barton B.

    2014-01-01

    In the late spring or early summer of 2012, a flood emanated from a small moraine-dammed lake on the northeast flank of Three Fingered Jack in the Mount Jefferson Wilderness. Channel erosion or slope collapse breached the natural dam of the lake, leading to a sudden lowering of lake level by 2.8 m and discharge of 12,700 cubic meters (m3) of water. The resulting debris flow formed a bouldery deposit extending about 0.35 km downslope.

  16. Never stationary: examining the influence of creative destruction in the work of Jack Kerouac and Gary Snyder

    OpenAIRE

    2013-01-01

    In this research I examine the influence that creative destruction had upon the work of Jack Kerouac and Gary Snyder. My research aims to extend the work done by Philip Fisher in Still the New World: American Literature in a Culture of Creative Destruction, by interrogating how Kerouac and Snyder’s work was influenced by creative destruction in the post-war American economic climate. I will suggest that both the form and the content of Kerouac’s prose replicate these economic patterns, reflec...

  17. Chemical composition of the leaf essential oils of Murraya koenigii (L.) Spreng and Murraya paniculata (L.) Jack

    OpenAIRE

    Jasim Uddin Chowdhury; Mohammad Nazrul Islam Bhuiyan; Mohammed Yusuf

    2008-01-01

    The chemical composition of the leaf oils of Murraya koenigii (L.) Spreng and M. paniculata (L.) Jack from Bangladesh was studied by gas chromatography mass spectroscopy (GC-MS). M. koenigii oil contained 39 compounds of which the major is 3-carene (54.2%) followed by caryophyllene (9.5%). Oil of M. paniculata contained 58 compounds of which the major are caryophyllene oxide (16.6%), b-caryophyllene (11.8%), spathulenol (10.2%), b-elemene (8.9%), germacrene D (6.9%) and cyclooctene, 4-methyle...

  18. Chemical composition of the leaf essential oils of Murraya koenigii (L. Spreng and Murraya paniculata (L. Jack

    Directory of Open Access Journals (Sweden)

    Jasim Uddin Chowdhury

    2008-06-01

    Full Text Available The chemical composition of the leaf oils of Murraya koenigii (L. Spreng and M. paniculata (L. Jack from Bangladesh was studied by gas chromatography mass spectroscopy (GC-MS. M. koenigii oil contained 39 compounds of which the major is 3-carene (54.2% followed by caryophyllene (9.5%. Oil of M. paniculata contained 58 compounds of which the major are caryophyllene oxide (16.6%, b-caryophyllene (11.8%, spathulenol (10.2%, b-elemene (8.9%, germacrene D (6.9% and cyclooctene, 4-methylene-6-(1-propenylidene (6.4%. The compositions of both oils varied qualitatively and quantitatively.

  19. Heritability and complex segregation analysis of deafness in Jack Russell Terriers

    Directory of Open Access Journals (Sweden)

    Strain George M

    2007-11-01

    Full Text Available Abstract Background The association between patterns of pigmentation and deafness in the dog has a long-documented history, with reports dating back over one hundred years. Long suspected of having a genetic basis, the search for loci with a pronounced influence in the expression of hearing loss in the dog has yet to be successful. No studies in the dog to date have found a possible influence of a specific colour locus associated with deafness. The present study is intended to evaluate the heritability of deafness in the Jack Russell Terrier (JRT, characterize the mode of inheritance, and evaluate the existence of a sex, coat colour, or coat texture influence on the expression of sensorineural deafness. Results The estimation of heritability of deafness in the JRT was 0.22 when deafness was considered a binary (normal/deaf trait and 0.31 when deafness was considered a three-category (normal/unilateral/bilateral deafness. The influence of coat colour in the incidence of JRT deafness was statistically significant, indicating that dogs with more white are more likely to be deaf. The influence of sex or coat texture was not statistically significant in the incidence of JRT deafness. Complex segregation analysis revealed a model of a single locus with a large effect on the binary measure of hearing loss is not supported. Conclusion This is the first attempt, to our knowledge, to characterize a genetic component responsible for deafness in the JRT. The heritability of deafness in the JRT was found to be 0.22 and 0.31 considering deafness to be a two-category or three-category trait, respectively. There appears to be an influence of coat colour on the expression of deafness. In an attempt to characterize the mode of inheritance of deafness in the JRT, a model of a single locus with a large effect on hearing loss is not supported with this data. Further study is needed to determine if a single locus may be influencing deafness in the JRT. While the

  20. Thirty Years After Jack Eddy at the Big Horn Medicine Wheel

    Science.gov (United States)

    Merriot, Ivy

    2017-01-01

    In the thirty years since John (Jack) Eddy’s work on the Big Horn Medicine Wheel, attention to the astronomy of medicine wheels went from high to low, with the lowest moment occurring during the ”welcome” talk of the Oxford IX International Archaeoastronomy (ISAAC) conference in Lima, Peru in 2011 when the wall-size projected image of the Big Horn Wheel carried a thick black “X” across its face. The alignments proposed by Eddy in 1974 and by Robinson in the 1980s have been reviewed and analyzed at the Wheel on Medicine Mountain in situ under bitter cold, clear dark nights at 10,000 feet altitude. Research was conducted using naked eye skywatching, transit surveying, and a Meade Cassegraine 8” electronic telescope. Along with this “review” of 20th century research, new research was conducted Wheel causing the second decade of the 21st century to bring new physical evidence and historical information for consideration.New research at the Big Horn Medicine Wheel gives evidence that the Wheel “mirrors” the night and daytime sky by creating a sky “grid” by its design made of basement and surface stones. The Wheel’s stone design mirrors the precession of the equinoxes by showing positions of all major pole stars over the full precessional cycle. Its twenty-eight sections are useful in the same way the twenty-eight sectioned Stations of the Moon star charts were useful in ancient and historical times. This manner of dividing the sky for tracking celestial objects holds celestial markers in constant position over millennia. This occurs because the Wheel’s center represents the Sun’ ecliptic north pole. Star charts that use the ecliptic pole do not need constant mathematical computation to keep up with current declinations and right ascensions. The Wheel’s twenty-eight sectioned sky chart keeps the same Dec and RA for celestial positions for thousands of years and will more quickly alert the observer to changes due to proper motion than will

  1. Revision of the Australian Union-Jack wolf spiders, genus Tasmanicosa (Araneae, Lycosidae, Lycosinae).

    Science.gov (United States)

    Framenau, Volker W; Baehr, Barbara C

    2016-12-23

    The Australian wolf spider (Lycosidae Sundevall, 1833) genus Tasmanicosa Roewer, 1959 with Lycosa tasmanica Hogg, 1905 as type species is revised to include 14 species: T. godeffroyi (L. Koch, 1865), comb. nov. (= Lycosa tasmanica Hogg, 1905, syn. nov.; = Lycosa zualella Strand, 1907, syn. nov.; = Lycosa woodwardi Simon, 1909, syn. nov.); T. fulgor sp. nov.; T. gilberta (Hogg, 1905) comb. nov.; T. harmsi sp. nov.; T. hughjackmani sp. nov.; T. kochorum sp. nov.; T. leuckartii (Thorell, 1870), comb. nov. (= Lycosa molyneuxi Hogg, 1905, syn. nov.); T. musgravei (McKay, 1974) comb. nov.; T. phyllis (Hogg, 1905) comb. nov. (= Lycosa stirlingae Hogg, 1905, syn. nov.); T. ramosa (L. Koch, 1877), comb. nov.; T. salmo sp. nov.; T. semicincta (L. Koch, 1877) comb. nov.; T. stella sp. nov.; and T. subrufa (Karsch, 1878) comb. nov. Within the Australian wolf spider fauna, the genus Tasmanicosa can be diagnosed by the distinct pattern of radiating light and dark lines forming a "Union-Jack" pattern on the carapace. Male pedipalp morphology identifies the genus as part of the subfamily Lycosinae Sundevall, 1833 due to the presence of a transverse tegular apophysis with dorsal groove guiding the embolus during copulation. However, genital morphology is variable and a synapomorphy based on male pedipalp or female epigyne morphology could not be identified. Members of Tasmanicosa are comparatively large spiders (body length ca. 12-30 mm), that build a shallow burrow, which is sometimes covered with a flimsy trapdoor. Species of Tasmanicosa are largely a Bassian faunal element with preference for open woodlands and/or floodplains, although some species can be found into the semi-arid Australian interior. Two Australian wolf spider species may represent Tasmanicosa based on their original descriptions, but due to immature types in combination with the somatic similarities of all Tasmanicosa species, cannot be identified with certainty. They are therefore considered nomina dubia

  2. Single step purification of concanavalin A (Con A) and bio-sugar production from jack bean using glucosylated magnetic nano matrix.

    Science.gov (United States)

    Kim, Ho Myeong; Cho, Eun Jin; Bae, Hyeun-Jong

    2016-08-01

    Jack bean (JB, Canavalia ensiformis) is the source of bio-based products, such as proteins and bio-sugars that contribute to modern molecular biology and biomedical research. In this study, the use of jack bean was evaluated as a source for concanavalin A (Con A) and bio-sugar production. A novel method for purifying Con A from JBs was successfully developed using a glucosylated magnetic nano matrix (GMNM) as a physical support, which facilitated easy separation and purification of Con A. In addition, the enzymatic conversion rate of 2% (w/v) Con A extracted residue to bio-sugar was 98.4%. Therefore, this new approach for the production of Con A and bio-sugar is potentially useful for obtaining bio-based products from jack bean.

  3. AN AUTOMATIZED IN-PLACE ANALYSIS OF A HEAVY LIFT JACK-UP VESSEL UNDER SURVIVAL CONDITIONS

    Directory of Open Access Journals (Sweden)

    Gil Rama

    2014-08-01

    Full Text Available Heavy lift jack-up vessels (HLJV are used for the installation of components of large offshore wind farms. A systematic FE-analysis is presented for the HLJV THOR (owned by Hochtief Infrastructure GmbH under extreme weather conditions. A parametric finite element (FE model and analysis are developed by using ANSYS-APDL programming environment. The analysis contains static and dynamic nonlinear FE-calculations, which are carried out according to the relevant standards (ISO 19905 for in-place analyses of jack-up vessels. Besides strategies of model abstraction, a guide for the determination of the relevant loads is given. In order to calculate the dynamic loads, single degree of freedom (SDOF analogy and dynamic nonlinear FE-calculations are used. As a result of detailed determination of dynamic loads and consideration of soil properties by spring elements, the used capacities are able to be reduced by 28 %. This provides for significant improvement of the environmental restrictions of the HLJV THOR for the considered load scenario.

  4. 三种翻译策略下的《诗经》英译本之比较--从理雅各、韦利到庞德%Comparison of Three English Versions of Shijing--from James Legge, Arthur Waley to Ezra Pound

    Institute of Scientific and Technical Information of China (English)

    伍锦辉

    2015-01-01

    作为中国第一部诗歌总集,《诗经》在中国文学史上占据重要位置,无数中西学者为《诗经》的译介做出不懈努力,产生了众多璀璨如星的译本。而其中,理雅各、韦得和庞德的三个英文译本以三种迥然不同的方式对《诗经》进行了阐释。本文试图从文化视角出发,分析和探讨不同历史时期、社会背景下产生的这三个译本对《诗经》的独特阐释。%As the first anthology in Chinese literature history, Shijing has been translated by numerous diligent scholars from abroad and China, whose works are now shining like stars in heaven. Three of them:James Legge, Authur D. Waley and Ezra Pound, took three dispa⁃rate methods in their own interpretation of the ancient Chinese anthology. By considering the historical background of each, this paper aims to cast an insight into their unique ways of interpretation.

  5. Functional categories in the noun phrase: on jacks-of-all-trades and one-trick-ponies in Danish, Dutch and German

    DEFF Research Database (Denmark)

    Rijkhoff, Jan

    2010-01-01

    briefly discusses an example of a jack-of-all-trades in Dutch (adnominal PPs with van ‘of’; see Rijkhoff 2009b for a more detailed treatment), then focuses on a one-trick-pony in Danish, the adjective stakkels ‘poor’  (as in Stakkels pige! ‘Poor girl!’), and compares it with its translational counterpart...

  6. Flood magnitude and frequency of Jacks Run at the culvert on U.S. Route 206, Southampton Township, Burlington County, New Jersey

    Science.gov (United States)

    Barringer, Thomas

    1996-01-01

    Flood magnitude and frequency of Jacks Run at the culvert on U.S. Route 206, Southampton Township, New Jersey, were determined by using the rational method. Flood magnitude and frequency estimates, as well as basin characteristics, are included in this report. The 100-year-flood estimate is 29 cubic feet per second.

  7. Movable chain jacks and winches: case study of PETROBRAS' P58/)62and ENI's Goliat

    Energy Technology Data Exchange (ETDEWEB)

    Grindheim, Reidar [Aker Pusnes AS, Arendal (Norway)

    2012-07-01

    Recently, Aker Solutions delivered a movable chain jack system to PETROBRAS's P58/P62 FPSOs and a movable windlass system to ENI's Goliat FPSO. This paper highlights the main differences between the two systems and when it is beneficial to employ movable systems. There are many parameters to consider in determining which system to use - also a traditional system involving a single winch or chain jack per mooring line may in many cases be preferred. The movable chain jack concept is designed to operate multiple mooring lines within the same cluster. A single chain jack is lifted by a skidding gantry and moved to the next mooring line and so forth. Installation and messenger chains are moved using a large sliding chain locker allowing for later offloading of the surplus chain. The movable windlass system is also designed to operate multiple mooring lines within the same cluster. However, in this case the winch is rotary and can operate via electric or hydraulic power. One of the main considerations is to move the windlass and keep the mooring lines intact without cutting them. (author)

  8. Durable Reliability of Jack-up Platforms. The impact of Fatigue, Fracture and Effect of Extreme Environmental Loads on the Structural Reliability

    NARCIS (Netherlands)

    Shabakhty, N.

    2004-01-01

    A variety of factors is governing the operational conditions of jack-up platforms. The platforms are moved to different locations, which are causing changes in water depth, environmental and seabed conditions, drilling depths, payload etc. Insight should be gained in how the different factors affect

  9. An Easy and Well-Ordered Way to Learn: Schooling at Home in Louisa May Alcott's "Eight Cousins" and "Jack and Jill"

    Science.gov (United States)

    Davis, Cathlin M.

    2011-01-01

    Louisa May Alcott's juvenile fiction is often focused on aspects of children's lives that were also topics of reform in nineteenth century America. In "Jack and Jill" and "Eight Cousins," Alcott presents an idealized picture of child-centered learning, building on three central principals: (1) Good teachers are sympathetic and understanding of…

  10. Hydraulic Unfreezing Jack for Offshore Production Platform%海洋油气生产平台液压解卡千斤顶

    Institute of Scientific and Technical Information of China (English)

    苏一凡; 吴修德; 汪永寿

    2012-01-01

    鉴于海洋油气生产平台修井机提升能力不足的问题,研制了海洋油气生产平台液压解卡千斤顶。该液压解卡千斤顶主要由同步顶升装置、液压站和控制系统3大部分组成。同步顶升装置采用4个液压缸同步运动来实现顶升解卡,液压站采用美国DYNEX多出口、超高压、大流量柱塞泵及变频控制电机。采用位移、压力传感器和西门子可编程控制器构成位置检测与控制系统,可实现精确的顶升位移和顶升力控制。现场试验情况表明,该液压解卡千斤顶投资成本低,安装周期短,操作简单,可靠性高,适应性广,能够满足海洋油气生产平台上复杂解卡工艺的要求。%Due to the insufficient lifting-up capacity of workover rig of offshore production platform, the hydrau- lic unfreezing jack was developed. The jack mainly consists of synchronous jacking-up device, hydraulic station and control system. The device adopts the synchronous motion of four hydraulic cylinders to achieve jacking-up and un- freezing. The station adopts the American DYNEX pump with multiple outlets, superhigh pressure and large dis- placement as well as variable frequency control motor. Displacement sensor, pressure sensor and Siemens program- mable controller are adopted to form the position testing and control system. The precise jacking-up displacement and jacking-up force control can be achieved. The field application shows that the jack is low in the cost of invest- ment, short in installment cycle, high in reliability and extensive in applicability. It can satisfy the requirement of the complex unfreezing technology for the platform.

  11. Eurycomanone and Eurycomanol from Eurycoma longifolia Jack as Regulators of Signaling Pathways Involved in Proliferation, Cell Death and Inflammation

    Directory of Open Access Journals (Sweden)

    Shéhérazade Hajjouli

    2014-09-01

    Full Text Available Eurycomanone and eurycomanol are two quassinoids from the roots of Eurycoma longifolia Jack. The aim of this study was to assess the bioactivity of these compounds in Jurkat and K562 human leukemia cell models compared to peripheral blood mononuclear cells from healthy donors. Both eurycomanone and eurycomanol inhibited Jurkat and K562 cell viability and proliferation without affecting healthy cells. Interestingly, eurycomanone inhibited NF-κB signaling through inhibition of IκBα phosphorylation and upstream mitogen activated protein kinase (MAPK signaling, but not eurycomanol. In conclusion, both quassinoids present differential toxicity towards leukemia cells, and the presence of the α,β-unsaturated ketone in eurycomanone could be prerequisite for the NF-κB inhibition.

  12. Puntos de vista acerca de la revolución mexicana en John Reed y Jack London

    OpenAIRE

    Tallatta, Cecilia Natalia

    2012-01-01

    En el presente trabajo me centraré en el análisis comparado de “El mexicano” (1911) de Jack London con México insurgente (1914) y tres cuentos incluidos en Hija de la revolución y otros cuentos: “Mac-American” (1914), “Cuadros de México” (1914) y “Endimión o en la frontera” (1916) de John Reed. El objetivo que me propongo es el de establecer una correlación entre dos autores que abordan en sus escritos el tema de la revolución mexicana a partir de un análisis comparado de las obras antes menc...

  13. Diagenesis and Fluid Flow History in Sandstones of the Upper Permian Black Jack Formation, Gunnedah Basin, Eastern Australia

    Institute of Scientific and Technical Information of China (English)

    BAI Guoping; John B. KEENE

    2007-01-01

    The fluid flow history during diagenesis of sandstones in the Upper Permian Black Jack Formation of the Gunnedah Basin has been investigated through integrated petrographic observations, fluid inclusion investigations and stable isotope analyses. The early precipitation of mixed-layer illite/smectite, siderite, calcite, ankerite and kaolin proceeded at the presence of Late Permian connate meteoric waters at temperatures of up to 60℃. These evolved connate pore waters were also parental to quartz, which formed at temperatures of up to 87℃. The phase of maximum burial was characterized by development of filamentous illite and late calcite at temperatures of up to ~90℃. Subsequent uplifting and cooling led to deep meteoric influx from surface, which in turn resulted in dissolution of labile grains and carbonate cements, and formation of second generation of kaolin. Dawsonite was the last diagenetic mineral precipitated and its formation is genetically related to deep-seated mamagtic sourced CO2.

  14. Antes de Adán : Autor: Jack London. Valencia: Editorial Prometeo. ca 1925. 240 pp.

    OpenAIRE

    Lombo Montañés, Alberto

    2016-01-01

    La edición dirigida por Blasco Ibáñez y traducida por Fernando Valera cuenta con una excelente biografía escrita por el propio autor. Jack London (1876-1916) empezó a interesarse por la evolución humana en Klondike (Yukón) donde además de leer a Spencer y Darwin, aprendió a sobrevivir en la naturaleza. Before Adam fue publicada entre 1906-1907 en la revista Everybody’s Magazine y narra las increíbles memorias de un anciano que sueña con un antepasado prehistórico. Previamente, se habían publi...

  15. What can zircon ages from the Jack Hills detrital zircon suite really tell us about Hadean geodynamics?

    Science.gov (United States)

    Whitehouse, Martin; Nemchin, Alexander

    2015-04-01

    As the only direct sample of the Hadean Earth, detrital zircon grains from the Jack Hills, Western Australia, have been the subject of intense investigation over the almost three decades since their discovery. A wide variety of geochemical and isotopic analyses of these grains, as well as their mineral inclusions, have been used variously to support two fundamentally different models for Hadean geodynamics: (i) Some form of (not necessarily modern-style) plate recycling generating felsic (continental-type?) crust at the boundaries [1, 2], or conversely (ii) the persistence of a long-lived, stagnant basaltic lid within which magmatism occurred as a result of internal temperature perturbations and/or impacts [3, 4], a model also generally consistent with a wide range of observations from post-Hadean geochemical reservoirs. Despite the considerable time and resources expended, the majority of these studies uncritically accept the individual U-Pb zircon ages, even though their veracity is key to many of the interpretations [5, 6]. We report here the results of an in-depth evaluation of all published (and new) U-Pb ages from the Jack Hills zircon suite in order to define age populations that can be used with a high degree of confidence in geodynamic interpretations. A notable problem in the interpretation of U-Pb data from ancient zircon grains (including those as young as the Neoarchean) is that disturbance of the systematics even several 100 Ma after crystallization causes data to spread along the concordia curve without becoming discernably discordant within the relatively large error bounds associated with U/Pb ages from in situ dating methods (e.g. SIMS). While 207Pb/206Pb ages are typically more precise, individually they provide no means to detect Pb-loss-induced younging. However, if two or preferably more analyses have been made in the same zircon growth zone, a reasonable evaluation of the possibility of Pb-loss can be made. In the available Jack Hills zircon

  16. Neoarchean metamorphism recorded in high-precision Sm-Nd isotope systematics of garnets from the Jack Hills (Western Australia)

    Science.gov (United States)

    Eccles, K. A.; Baxter, E. F.; Mojzsis, S. J.; Marschall, H.; Williams, M. L.; Jercinovic, M. J.

    2013-12-01

    Studies of metasedimentary rocks from the Jack Hills, which host Earth's oldest known detrital minerals, have focused on zircon and occasionally monazite or xenotime, but no attention has been directed toward one of the most common mineral markers of metamorphism: garnet. Garnet can provide a record of the post-depositional, prograde metamorphic history of Archean metasedimentary rocks. Additionally, the use of a newly developed detrital garnet dating technique [1,2] may reveal information about pre-depositional metamorphism that could address lingering questions about the nature and timing of Earth's earliest tectonometamorphic events. Here we investigate garnet from the Jack Hills metasedimentary rocks to test whether they record in situ metamorphism or are a detrital relict of even older metamorphic events. We identified garnet in two bulk quartz-pebble conglomerate samples collected from the 'discovery' outcrop at Eranondoo Hill in the Jack Hills of Western Australia. Electron microprobe analyses of polished grains and SEM measurements of unpolished grain surfaces are consistent, revealing garnet composition indicative of a single generation/population of predominantly almandine-spessartine solid solution (~10-35% mole fraction spessartine). Compositional maps of garnet grains reveal little zoning and no discontinuities, most consistent with a single growth event. Dating Jack Hills' garnet via the Sm-Nd system is possible due to continued development of small sample analysis techniques, including running NdO+ TIMS analyses with Ta2O5 activator [3] permitting nondestructive chemical prescreening technique (tabletop SEM) allows for grouping of multiple grains based on chemical similarity. Final Nd loads in the 450-750pg range routinely yield dates with precisions <×10Ma for two point isochrons between clean garnet (Sm/Nd ≥ 1.0) and their leached inclusion populations [2]. Four grouped garnet grain separates from one sample yield preliminary dates of 2703.6×6

  17. Detrital magnetite and chromite in Jack Hills quartzite cobbles: Further evidence for the preservation of primary magnetizations and new insights into sediment provenance

    Science.gov (United States)

    Dare, Matthew S.; Tarduno, John A.; Bono, Richard K.; Cottrell, Rory D.; Beard, James S.; Kodama, Kenneth P.

    2016-10-01

    The magnetization of zircons from sedimentary rocks of the Jack Hills (Yilgarn Craton, Western Australia) provide evidence for a Hadean to Paleoarchean geodynamo, 4.0 to 4.2 billion years old. These magnetizations pass a microconglomerate test, attesting to the fidelity of Jack Hills zircons as recorders of these most ancient magnetic signals. The lack of pervasive remagnetization of the Jack Hills is also documented through a positive conglomerate test conducted on cobble-sized clasts. A key element of the latter test is the preservation of a high unblocking temperature magnetization that can survive peak metamorphic temperatures. Rock magnetic studies suggest the mineral carrier is magnetite. Herein, we investigate the magnetic mineral carriers in cobble samples through scanning electron microscope and microprobe analyses, conduct an inter-laboratory paleomagnetic study to evaluate sensitivities required to evaluate the weak magnetizations carried by the Jack Hills sediments, and assess provenance information constrained by the opaque minerals. These data confirm magnetite as a detrital phase and the presence of high unblocking temperature magnetizations, further supporting the posit that the Jack Hills sediments can preserve primary magnetic signatures. We note that some of these magnetizations are near the measurement resolution of standard cryogenic magnetometers and thus exacting laboratory procedures are required to uncover these signals. In addition to magnetite, the cobbles contain an assemblage of Mg poor Cr-Fe chromites, Ni-sulfides and pyrrhotite that suggest a source in a layered intrusion different from the granitoid source of the zircons. Any Hadean rock fragment in these sediments, if present, remains elusive.

  18. Hi-Jack: a novel computational framework for pathway-based inference of host–pathogen interactions

    KAUST Repository

    Kleftogiannis, Dimitrios A.

    2015-03-09

    Motivation: Pathogens infect their host and hijack the host machinery to produce more progeny pathogens. Obligate intracellular pathogens, in particular, require resources of the host to replicate. Therefore, infections by these pathogens lead to alterations in the metabolism of the host, shifting in favor of pathogen protein production. Some computational identification of mechanisms of host-pathogen interactions have been proposed, but it seems the problem has yet to be approached from the metabolite-hijacking angle. Results: We propose a novel computational framework, Hi-Jack, for inferring pathway-based interactions between a host and a pathogen that relies on the idea of metabolite hijacking. Hi-Jack searches metabolic network data from hosts and pathogens, and identifies candidate reactions where hijacking occurs. A novel scoring function ranks candidate hijacked reactions and identifies pathways in the host that interact with pathways in the pathogen, as well as the associated frequent hijacked metabolites. We also describe host-pathogen interaction principles that can be used in the future for subsequent studies. Our case study on Mycobacterium tuberculosis (Mtb) revealed pathways in human-e.g. carbohydrate metabolism, lipids metabolism and pathways related to amino acids metabolism-that are likely to be hijacked by the pathogen. In addition, we report interesting potential pathway interconnections between human and Mtb such as linkage of human fatty acid biosynthesis with Mtb biosynthesis of unsaturated fatty acids, or linkage of human pentose phosphate pathway with lipopolysaccharide biosynthesis in Mtb. © The Author 2015. Published by Oxford University Press. All rights reserved.

  19. Climatic sensitivity, water-use efficiency, and growth decline in boreal jack pine (Pinus banksiana) forests in Northern Ontario

    Science.gov (United States)

    Dietrich, Rachel; Bell, F. Wayne; Silva, Lucas C. R.; Cecile, Alice; Horwath, William R.; Anand, Madhur

    2016-10-01

    Rises in atmospheric carbon dioxide (atmCO2) levels are known to stimulate photosynthesis and increase intrinsic water-use efficiency (iWUE) in trees. Stand-level increases in iWUE depend on the physiological response of dominant species to increases in atmCO2, while tree-level response to increasing atmCO2 depends on the balance between the direct effects of atmCO2 on photosynthetic rate and the indirect effects of atmCO2 on drought conditions. The aim of this study was to characterize the response of boreal jack pine (Pinus banksiana) stands in Northern Ontario to changes in atmCO2 and associated climatic change over the past 100 years. The impact of changes in growing season length, temperature, and precipitation, as well as atmCO2 on tree growth, was determined using stable carbon isotopes and dendrochronological analysis. Jack pine stands in this study were shown to be in progressive decline. As expected, iWUE was found to increase in association with rising atmCO2. However, increases in iWUE were not directly coupled with atmCO2, suggesting that the degree of iWUE improvement is limited by alternative factors. Water-use efficiency was negatively associated with tree growth, suggesting that warming- and drought-induced stomatal closure has likely led to deviations from expected atmCO2-enhanced growth. This finding corroborates that boreal forest stands are likely to face continued stress under future climatic warming.

  20. BUDIDAYA TABAT BARITO (Ficus deltoidea JACK SECARA STUMP DENGAN VARIASI PERLAKUAN MEDIA TANAM DAN PUPUK ORGANIK NASA

    Directory of Open Access Journals (Sweden)

    Yudi Firmanul Arifin

    2016-09-01

    Full Text Available ABSTRACT.  Indonesia is rich of medicinal plants for some ecosystem types of forest, one of which is tabat barito (Ficus deltoidea Jack. The utilization of tabat barito mainly used for women's health and other using. Until present day its use continues to increase, especially for traditional medicines, but efforts for cultivation have not been much done. To overcome the sustainability of raw material, the research of cultivation systems have to be done. The vegetative methods which are using stump is an alternative for reproduction.  The treatments of media and liquid fertilizer NASA were given of every treatment for improving survival rate and the increment of height and diameter.  Result of research showed the treatment for media of top soil was better than sand for height and number of leaf parameter.  The treatment of organic fertilizer was only improving number of leaves.  Keywords: vegetative,  stump,  organic fertilizer, growth ABSTRAK.  Indonesia sangat kaya akan tumbuhan berkhasiat obat yang tumbuh pada berbagai tipe ekosistem hutan.  Tabat barito (Ficus deltoidea Jack adalah salah satu tumbuhan yang sudah dikenal oleh masyarakat berkhasiat obat untuk berbagai penyakit, khususnya untuk kesehatan wanita setelah melahirkan dan penggunanya pun untuk bahan baku industri obat tradisional sudah dilakukan hingga kini.  Untuk mengatasi kekhawatiran akan keberlanjutan bahan baku tersebut, maka penelitian budidaya tumbuhan ini dilakukan.  Metode yang digunakan adalah secara vegetatif dengan cabutan anakan alam (stump.  Perlakuan terhadap media tanam dan pemberian pupuk cair NASA diberikan pada setiap metode untuk meningkatkan daya hidup dan mempercepat pertumbuhan anakan.  Hasil yang diperoleh menunjukkan bahwa Perlakuan media top soil lebih baik dibandingkan dengan media pasir pada parameter tinggi dan jumlah daun.  Perlakuan pemberian pupuk organik cair NASA hanya dapat meningkatkan pertambahan jumlah daun. Kata kunci: vegetatif

  1. 人工掘进顶管穿越沙基公路总顶力确定和施工风险规避%The Total Jacking Force to Calculate and Construction Risk Averse For Manual Pipe Jacking Through Sand Layers Road

    Institute of Scientific and Technical Information of China (English)

    李国明; 任哲; 杨帆

    2016-01-01

    人工掘进顶管穿越沙基公路施工易出现总顶力计算错误、后背墙倾斜、工作面坍塌等问题,从而造成顶管施工失败,应结合工程实例,探讨适于人工掘进顶管穿越沙基公路的总顶力计算公式,对于后背墙倾斜、工作面坍塌等施工难点提出具体的工程措施。通过理论计算与工程实例得出结论,国家标准总顶力计算公式适于人工掘进顶管总顶力计算;人工掘进顶管穿越沙基公路的穿越长度不宜大于26 m;后背墙、工具管的设计对于人工掘进顶管穿越沙基公路施工成败至关重要。%The total jacking force calculation error, backwall tilted, working face landslide and so on which caused by the manual pipe jacking through sand layers road construction fail-ure. Combined with construction, to discuss the calculation formula of the total jacking force which is suitable for construction of manual pipe jacking through sand layers road;En-gineering difficulties such as backwall tilted, working face landslide and so on, engineering measures is provided, and it can be referred to engineering practices. According to analysis, the calculation formula of the total jacking force which is adopted by the national standard is suitable for construction of manual pipe jacking through sand layers road;The total length should be less than 26 m while manual pipe jacking through sand layers road;Design of back-wall and tool pipe for manual pipe jacking through sand layers road are crucial to Success of engineering construction.

  2. NRDA-processed CTD data from the JACK FITZ in the Gulf of Mexico, Cruise 1 Leg 1, collected from 2010-05-10 to 2010-05-13, associated with the Deepwater Horizon Oil Spill event (NCEI Accession 0128137)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Conductivity Temperature and Depth (CTD) measurements were collected aboard the R/V Jack Fitz, Cruise 01, to determine physical oceanographic parameters of the water...

  3. Chemical, laboratory analyses, physical and profile oceanographic data collected aboard the JACK FITZ in the Gulf of Mexico from 2010-08-18 to 2010-08-23 in response to the Deepwater Horizon Oil Spill event (NODC Accession 0069119)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Chemical, laboratory analyses, physical and profile oceanographic data were collected aboard the JACK FITZ in the Gulf of Mexico from 2010-08-18 to 2010-08-23 in...

  4. NRDA-processed CTD data from the JACK FITZ in the Gulf of Mexico, Cruise 3 Leg 1, collected from 2010-06-12 to 2010-06-20, associated with the Deepwater Horizon Oil Spill event (NCEI Accession 0128139)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Conductivity Temperature and Depth (CTD) measurements were collected aboard the R/V Jack Fitz, Cruise 03, to determine physical oceanographic parameters of the water...

  5. NRDA-processed CTD data from the JACK FITZ in the Gulf of Mexico, Cruise 2 Leg 1, collected from 2010-05-22 to 2010-05-31, associated with the Deepwater Horizon Oil Spill event (NCEI Accession 0128138)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Conductivity Temperature and Depth (CTD) measurements were collected aboard the R/V Jack Fitz, Cruise 02, to determine physical oceanographic parameters of the water...

  6. The web cast of the Nobel Prize of Physics of 2008, transmitted direct from Stockholm to the Globe of Science at CERN. Followed by a discussion among CERN theorists, with the participation of Jack Steinberger and John Ellis.

    CERN Multimedia

    Claudia Marcelloni

    2008-01-01

    The web cast of the Nobel Prize of Physics of 2008, transmitted direct from Stockholm to the Globe of Science at CERN. Followed by a discussion among CERN theorists, with the participation of Jack Steinberger and John Ellis.

  7. Chemical, laboratory analyses, physical and profile oceanographic data collected aboard the JACK FITZ in the Gulf of Mexico from 2010-06-12 to 2010-06-20 in response to the Deepwater Horizon Oil Spill event (NODC Accession 0069074)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Chemical, laboratory analyses, physical and profile oceanographic data were collected aboard the JACK FITZ in the Gulf of Mexico from 2010-06-12 to 2010-06-20 in...

  8. A mitochondrial DNA minisatellite reveals the postglacial history of jack pine (Pinus banksiana), a broad-range North American conifer.

    Science.gov (United States)

    Godbout, Julie; Jaramillo-Correa, Juan P; Beaulieu, Jean; Bousquet, Jean

    2005-10-01

    Jack pine (Pinus banksiana Lamb.) is a broadly distributed North American conifer and its current range was covered by the Laurentian ice sheet during the last glacial maximum. To infer about the history and postglacial colonization of this boreal species, range-wide genetic variation was assessed using a new and highly variable minisatellite-like marker of the mitochondrial genome. Among the 543 trees analysed, 14 distinct haplotypes were detected, which corresponded to different repeat numbers of the 32-nucleotide minisatellite-like motif. Several haplotypes were rare with limited distribution, suggesting recent mutation events during the Holocene. At the population level, an average of 2.6 haplotypes and a mean haplotype diversity (H) of 0.328 were estimated. Population subdivision of genetic diversity was quite high with G(ST) and R(ST) values of 0.569 and 0.472, respectively. Spatial analyses identified three relatively homogeneous groups of populations presumably representative of genetically distinct glacial populations, one west and one east of the Appalachian Mountains in the United States and a third one presumably on the unglaciated northeastern coastal area in Canada. These results indicate the significant role of the northern part of the US Appalachian Mountains as a factor of vicariance during the ice age. A fourth distinct group of populations was observed in central Québec where the continental glacier retreated last. It included populations harbouring haplotypes present into the three previous groups, and it had higher level of haplotype diversity per population (H = 0.548) and lower population differentiation (G(ST) = 0.265), which indicates a zone of suture or secondary contact between the migration fronts of the three glacial populations. Introgression from Pinus contorta Dougl. var. latifolia Engelm. was apparent in one western population from Alberta. Altogether, these results indicate that the mitochondrial DNA variation of jack pine is

  9. Effect of a previous high hydrostatic pressure treatment on lipid damage in chilled Chilean jack mackerel (Trachurus murphyi

    Directory of Open Access Journals (Sweden)

    Maluenda, D.

    2013-12-01

    Full Text Available Lipid damage evolution was analyzed in chilled Chilean jack mackerel (Trachurus murphyi previously treated with high hydrostatic pressure (HHP technology. Different pressure levels and pressure holding times were tested. In addition, fish corresponding to pre- and post-rigor mortis (RM stages were comparatively studied. Previous HHP treatment led to a marked lipid hydrolysis inhibition in chilled fish. Increasing the pressure level and pressure holding time led to a lower free fatty acid content, with the effect of pressure being more relevant. According to the analysis of different types of lipid oxidation indexes, no effect of the previous HHP treatment on the lipid oxidation development could be determined in chilled jack mackerel. Concerning the effect of the RM stage of raw fish, a higher primary and secondary lipid oxidation development was observed in fish corresponding to the post-RM condition throughout the chilled storage; although a definite effect on lipid hydrolysis could not be found.Se estudió la evolución de la alteración lipídica en jurel chileno (Trachurus murphyi refrigerado previamente tratado a altas presiones hidrostáticas (HHP. Se aplicaron distintos valores de presión y tiempo de presurización; asimismo, se analizó de forma comparativa la respuesta al proceso del pescado inicial en estados pre- y post-rigor mortis (RM. El tratamiento previo por HHP produjo inhibición de la hidrólisis lipídica en pescado refrigerado, siendo más intenso el efecto de la presión que el del tiempo de presurización. De acuerdo con el análisis de distintos índices de oxidación, no se concluyó un efecto determinante sobre la oxidación lipídica por parte del tratamiento previo de HHP. En relación al efecto del estado de RM del pescado inicial, se observó una oxidación primaria y secundaria mayor en jurel correspondiente a la condición post-RM durante la conservación en refrigeración; sin embargo, no se detectó un efecto

  10. Application of GRP pipe jacking technique in China%我国玻璃钢夹砂管顶管技术的应用

    Institute of Scientific and Technical Information of China (English)

    霍贞

    2012-01-01

    In light of more and more extensive application condition of GRP jacking technique in China,the paper specifically introduces the manufacturing process and features of GRP pipe jacking,calculation methods of relevant technological parameters,and construction schemes and so on,with a view to guide practice.%针对国内玻璃钢夹砂管顶管技术应用越来越广泛的情况,详细介绍了玻璃钢夹砂管顶管制作工艺、特点、相关技术参数的计算方法及施工方案等,以期指导实践。

  11. Jack-up Test after Alignment of Propulsive Shafting of 76m Tug%76 m拖轮轴系合理校中法工艺探讨

    Institute of Scientific and Technical Information of China (English)

    张如文; 亢宗楠

    2014-01-01

    This paper describes the work principle of jack-up test after alignment, studies the calculation method of gearbox load and reaction force method, analyzes the disadvantages of common alignment technique and veriifes jack-up test can effectively adjust the shafting load.%介绍了76 m拖轮轴系合理校中的方法,研究了齿轮箱受力形式及采用支反力法进行校中计算的方法,通过对传统校中方法的研究,分析了其受力分析的的局限性,提出了能有效调整轴系负荷的方法,并通过实例验证了其正确性。

  12. Fish Stock Endogeneity in a Harvest Function: ‘El Niño’ Effects on the Chilean Jack Mackerel Fishery

    Directory of Open Access Journals (Sweden)

    Sebastián Vergara

    2007-03-01

    Full Text Available There are several examples of pelagic fisheries that have experienced fishing collapse when facing downward abundance cycles. Improving understanding about pelagic catch’s stock dependence can help avoid new cases of fishing collapse. This paper analyses the possible endogeneity of the fish stock variable in a pelagic fishery harvest function. The harvest function is estimated using panel data and ‘El Niño’ episodes as instrumental variable for the Chilean jack mackerel biomass. This strategy produces consistent estimates of the fish biomass coefficient. The paper makes two contributions. First, it corrects for endogeneity of the fish stock variable, an issue often underestimated in empirical fishery economics. Secondly, it shows that ‘El Niño’ episodes have negative effects on the Chilean jack mackerel biomass.

  13. A Comparative Analysis of the Image of the Road in Jack Kerouac’s On the Road and Comac McCarthy’s The Road

    Institute of Scientific and Technical Information of China (English)

    TANG Meng-ying

    2014-01-01

    As in many American classics, the road is a central image in Jack Kerouac’s On the Road(1957) and Comac McCar-thy’s The Road(2006). This paper intends to carry out a comparative analysis of this image in these two postmodern masterpieces. The paper starts with an investigation of the image in the two works separately and ends with a more comprehensive and compar-ative study of this topic.

  14. Standardization of CPUE for Chilean Jack Mackerel (Trachurus murphyi) from Chinese Trawl Fleets in the High Seas of the Southeast Pacific Ocean

    Institute of Scientific and Technical Information of China (English)

    LI Gang; ZOU Xiaorong; CHEN Xinjun; ZHOU Yinqi; ZHANG Min

    2013-01-01

    The generalized linear model (GLM) and generalized additive model (GAM) were applied to the standardization of catch per unit effort (CPUE) for Chilean jack mackerel from Chinese factory trawl fishing fleets in the Southeast Pacific Ocean from 2001 to 2010 by removing the operational,environmental,spatial and temporal impacts.A total of 9 factors were selected to build the GLM and GAM,i.e.,Year,Month,Vessel,La Ni(n)a and El Niio events (ELE),Latitude,Longitude,Sea surface temperature (SST),SST anomaly (SSTA),Nino3.4 index and an interaction term between Longitude and Latitude.The first 5 factors were significant components in the GLM,which in combination explained 27.34% of the total variance in nominal CPUE.In the stepwise GAM,all factors explained 30.78% of the total variance,with Month,Year and Vessel as the main factors influencing CPUE.The higher CPUE occurred during the period April to July at a SST range of 12-15℃ and a SSTA range of 0.2-1.0℃.The CPUE was significantly higher in normal years compared with that in La Ni(n)a and E1 Ni(n)o years.The abundance of Chilean jack mackerel declined during 2001 and 2010,with an increase in 2007.This work provided the relative abundance index of Chilean jack mackerel for stock assessment by standardizing catch and effort data of Chinese trawl fisheries and examined the influence of temporal,spatial,environmental and fisheries operational factors on Chilean jack mackerel CPUE.

  15. Histone deacetylase (HDAC) inhibitory and antiproliferative activities of phenolic-rich extracts derived from the rhizome of Hydnophytum formicarum Jack.: sinapinic acid acts as HDAC inhibitor

    OpenAIRE

    Senawong, Thanaset; Misuna, Suwatchai; Khaopha, Somprasong; Nuchadomrong, Suporn; Sawatsitang, Prasan; PHAOSIRI, CHANOKBHORN; Surapaitoon, Arpa; Sripa, Banchob

    2013-01-01

    Background The rhizome of Hydnophytum formicarum Jack., a medicinal plant known in Thai as Hua-Roi-Roo, has been used in Thai traditional herbal medicine for treatment of cancer. We assessed the ability of its ethanolic and phenolic-rich extracts and its major phenolic compound, sinapinic acid, possessing histone deacetylase (HDAC) inhibitory activity to inhibit proliferation of 5 human cancer cell lines. Methods HeLa cells were used to study HDAC inhibitory activity of the extracts, sinapini...

  16. Effects of soil temperature and elevated atmospheric CO{sub 2} concentration on gas exchange, in vivo carboxylation and chlorophyll fluorescence in jack pine and white birch seedlings

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, S.; Dang, Q-L. [Lakehead University, Faculty of Forestry and the Forest Environment, Thunder Bay, ON (Canada)

    2005-05-01

    The interactive effects of soil temperature and elevated carbon dioxide on the photosynthetic functions of white birch and jack pine were investigated. Elevated carbon dioxide was found to significantly decrease the allocation of electron transport to photorespiration in both species by increasing electron allocation to Rubisco carboxylation. Photosynthetic down-regulation occurred in both species after four months in elevated carbon dioxide as evidenced by decreases in maximal carboxylation rate which were unaffected by soil temperature. 50 refs., 5 figs.

  17. Geohydrologic feasibility study of the Piceance Basin of Colorado for the potential applicability of Jack W. McIntyre`s patented gas/produced water separation process

    Energy Technology Data Exchange (ETDEWEB)

    Kieffer, F.

    1994-02-01

    Geraghty & Miller, Inc. of Midland, Texas conducted geologic and hydrologic feasibility studies of the potential applicability of Jack McIntyre`s patented process for the recovery of natural gas from coalbed/sand formations in the Piceance Basin through literature surveys. Jack McIntyre`s tool separates produced water from gas and disposes of the water downhole into aquifers unused because of poor water quality, uneconomic lifting costs or poor aquifer deliverability. The beneficial aspects of this technology are two fold. The process increases the potential for recovering previously uneconomic gas resources by reducing produced water lifting, treatment and disposal costs. Of greater importance is the advantage of lessening the environmental impact of produced water by downhole disposal. Results from the survey indicate that research in the Piceance Basin includes studies of the geologic, hydrogeologic, conventional and unconventional recovery oil and gas technologies. Available information is mostly found centered upon the geology and hydrology for the Paleozoic and Mesozoic sediments. Lesser information is available on production technology because of the limited number of wells currently producing in the basin. Limited information is available on the baseline geochemistry of the coal/sand formation waters and that of the potential disposal zones. No determination was made of the compatibility of these waters. The study also indicates that water is often produced in variable quantities with gas from several gas productive formations which would indicate that there are potential applications for Jack McIntyre`s patented tool in the Piceance Basin.

  18. Genetic diversity and differentiation through isozymes in natural populations of Pinus wallichiana A.B. Jacks (Blue Pine in India

    Directory of Open Access Journals (Sweden)

    Monnika Konnert

    2011-02-01

    Full Text Available Eighteen natural populations of Pinus wallichiana A.B. Jacks. (Blue Pine occurring in the Northwest Himalayas of India were studied on the basis of ten enzyme systems, representing 16 isozyme loci. Allele frequencies, genetic multiplicity, diversity and genetic differentiation values are presented. A marked allele frequency difference was found in different populations. The mean number of alleles per locus was 1.79, with a range from 1.56 to 2.06, and the gene pool diversity varied from 1.11 to 1.20. Out of 46 alleles 11 (23% appear to be rare. Of the 16 isozyme loci scored, 14 (87.5 % were polymorphic, based on the 99% criterion. Only the loci Pgm-A and Idh-A were found to be monomorphic in all the populations. The percentage of polymorphic loci ranged from 37.5% to 68.7575% among populations. Nei’s genetic distance ranged from 1.7% to 11%. The results show that natural populations of Pinus wallichiana in India contain an appreciableamount of genetic variation (P99 = 53.4%, Ho = 0.152, He = 0.14545 comparable to other pines (on average P99 = 52, H0 = 0.159, He = 0.159.

  19. Genetic diversity and differentiation through isozymes in natural populations of Pinus wallichiana A.B. Jacks (Blue Pine in India

    Directory of Open Access Journals (Sweden)

    Meena Bakshi

    2011-06-01

    Full Text Available Eighteen natural populations of Pinus wallichiana (Blue pine A.B. Jacks. occurring in Northwest Himalayas of India were studied on the basis of ten enzyme systems representing 16 isozyme loci. Allele frequencies, genetic multiplicity, diversity and genetic differentiation values are presented. A marked allele frequency difference was found in different populations. The mean number of alleles per locus was 1.79 with a range from 1.56 to 2.06 , the gene pool diversity varied from 1.11 to 1.20. Out of 46 alleles 11 (23% appear to be rare. Of the 16 isozyme loci scored 14 (87.5 % were polymorphic based on 99% criterion. Only the loci PGM-A and IDH-A were found to be monomorphic in all the populations. The percentage of polymorphic loci ranged from 37.5% to 68.7%. Nei's genetic distance ranged from 1.7% to 11%. The results show that natural populations of Pinus wallichiana in India contain appreciable amount of genetic variation (P99 = 53.4%, Ho = 0.152, He = 0.145 comparable to other pines (on average P99=52, H0=0.159, He = 0.159. 

  20. White Anglo-Saxon hopes and black Americans' Atlantic dreams: Jack Johnson and the British boxing colour bar.

    Science.gov (United States)

    Runstedtler, Theresa

    2010-01-01

    This article examines the controversy surrounding Jack Johnson's proposed world heavyweight title fight against the British champion Bombardier Billy Wells in London (1911). In juxtaposing African Americans' often glowing discussions of European tolerance with the actual white resistance the black champion faced in Britain, including the Home Office's eventual prohibition of the match, the article explores the period's transnational discourses of race and citizenship. Indeed, as white sportsmen on both sides of the Atlantic joined together in their search for a "White Hope" to unseat Johnson, the boxing ring became an important cultural arena for interracial debates over the political and social divisions between white citizens and nonwhite subjects. Although African Americans had high hopes for their hero's European sojourn, the British backlash against the Johnson-Wells match underscored the fact that their local experiences of racial oppression were just one facet of a much broader global problem. At the same time, the proposed prizefight also made the specter of interracial conflict in the colonies all the more tangible in the British capital, provoking public discussions about the merits of U.S. racial segregation, along with the need for white Anglo-Saxon solidarity around the world. Thus, this article not only exposes the underlying connections between American Jim Crow and the racialized fault lines of British imperialism, but it also traces the "tense and tender ties" linking U.S. and African American history with the new imperial history and postcolonial studies.

  1. Total flavonoid content and antioxidant activity in leaves and stems extract of cultivated and wild tabat barito (Ficus deltoidea Jack)

    Science.gov (United States)

    Manurung, Hetty; Kustiawan, Wawan; Kusuma, Irawan W.; Marjenah

    2017-02-01

    Tabat barito (Ficus deltoidea Jack) is a name given by Dayak Tribe who lived in Borneo-Kalimantan and it is belongs to the moraceae. Almost all of the parts of F. deltoidea plant is widely used as a medicinal property. The total flavonoid content (TFC) and antioxidant activity from cultivated and wild F. deltoidea leaves and stems extract were assessed. Total flavonoid content was estimated by using Aluminium chloride colorimetric method and expressed as catechin equivalents (mg CE g-1 extract) and the antioxidant activity by the DPPH (2,2-diphenyl-1-picryl hydrazyl) method. The content of total flavonoid of leaves and stems (430.77 and 371.80 µg CE mg-1 extract) of cultivated F. deltoidea were higher than in the wild leaves and stems (114.82 and 66.67 µg CE mg-1 extract). The IC50 of leaves extract of cultivated and wild F. deltoidea, based on the DPPH assay, has a strong antioxidant activity (34.19 and 39.31 µg mL-1 extract) as compared to stems extract. These results showed that the cultivated F. deltoidea are suitable source for medicinal properties and the leaves could be exploited as source of natural antioxidants.

  2. Some morphological and anatomical studies of leaves and flowers of Murraya paniculata (Jack) Linn. in vivo and in vitro.

    Science.gov (United States)

    Taha, Rosna Mat; Haron, Noorma Wati

    2008-04-01

    In the present study, various explants of Murraya paniculata (Jack) Linn., such as cotyledons, shoots and young stems were cultured on MS medium supplemented with various concentrations of Benzyl Amino Purine (BAP) under 25 +/- 1 degree C with 16 h light and 8 h dark and also 8 h light and 16 h dark to obtain complete plant regeneration. In vitro flowering was observed from shoot explants cultured on MS supplemented with 0.5-2.0 mg L(-1) Naphthalene Acetic Acid (NAA) and also on MS basal medium under similar conditions. The leaves and flowers obtained from both in vivo and in vitro conditions were examined and compared. Morphological studies such as leaf clearing, epidermal peeling were studied using light and scanning electron microscope. Macromorphological studies of the flowers produced from in vivo and in vitro conditions were also examined. Morphologically, there were no differences between in vivo and in vitro flowers except the flowers produced from tissue culture systems were smaller in size with protruding stigmas. Differences were also found in the number of layers of palisade cells and the presence or absence of epicuticle layer of the leaves. Leaves produced from tissue culture system were smaller in size with membranous texture. Stomata were present only on the abaxial surfaces of both in vivo and in vitro leaves but the stomata were raised above the epidermis in the latter.

  3. Protective effect of total flavonoids extracted from the leaves of Murraya paniculata (L.) Jack on diabetic nephropathy in rats.

    Science.gov (United States)

    Zou, Jingtao; Yu, Xiaofeng; Qu, Shaochun; Li, Xuwen; Jin, Yongri; Sui, Dayuan

    2014-02-01

    This study was designed to evaluate the effects of total flavonoids extracted from the leaves of Murraya paniculata (L.) Jack (TFMP) on diabetic nephropathy. High fat diet and streptozotocin-induced diabetic rats were treated with the TFMP (35 or 70 mg/kg) for 13 weeks. Changes of renal function parameters were examined at the end of administration. Some kidneys were collected for histological and immunohistochemistry studies, the other ones for biochemical parameters analysis. TFMP significantly decreased the levels of serum blood urea nitrogen, serum creatinine, creatinine clearance, interleukin-6, urinary albumin, 24h-urinary albumin excretion rate, kidney weight to body weight ratio and fasting blood glucose in diabetic rats. Meanwhile, the levels of triglycerides, total and LDL cholesterols in the TFMP treated diabetic rats were lower and the high-density lipoprotein cholesterol level was higher than that in the diabetic rats. TFMP treatment significantly blocked the decrease of superoxide dismutase and glutathione peroxidase and increase of malondialdehyde levels in diabetic rats. Furthermore, the TFMP not only decreased the expression of TGF-β1 and CTGF protein, but also reduced diabetes-induced morphological alterations of the kidney. These results suggest that TFMP is a protective agent against renal damage in diabetic nephropathy.

  4. Assessment of possible sources of microbiological contamination and water-quality characteristics of the Jacks Fork, Ozark National Scenic Riverways, Missouri; phase II

    Science.gov (United States)

    Davis, Jerri V.; Richards, Joseph M.

    2002-01-01

    In 1998, an 8-mile reach of the Jacks Fork was included on Missouri?s list of impaired waters as required by Section 303(d) of the Federal Clean Water Act. The identified pollutant on the Jacks Fork was fecal coliform bacteria. Potential sources of fecal contamination to the Jacks Fork include a wastewater treatment plant; campground pit-toilet or septic-system effluent; a large commercial, cross-country horseback trail riding facility; canoeists, boaters, and tubers; and cows.The U.S. Geological Survey, in cooperation with the National Park Service, conducted a study to better understand the extent and sources of microbiological contamination within the Jacks Fork from Alley Spring to the mouth, which includes the 8-mile 303(d) reach. Identification of the sources would provide the National Park Service and the State of Missouri with the information needed to craft a solution of abatement, regulation, prevention, and mitigation with the end result being the removal of the Jacks Fork from the 303(d) list. Fifteen sites were sampled from November 1999 through December 2000. An additional site was sampled one time. Samples were collected mostly during base-flow conditions during a variety of nonrecreational and recreational season river uses. Samples were analyzed for selected fecal indicator bacteria, physical properties, nutrients, and wastewater organic compounds. During the sampling period, the whole-body-contact recreation standard for fecal coliform (200 colonies per 100 milliliters of sample) was exceeded at three sites on August 10, 2000, and also at one site on May 11, June 7, and October 3, 2000. Fecal coliform densities and instantaneous loads generally increased from background concentrations at the Eminence site, peaked about 2 river miles downstream, and then decreased until the most downstream site sampled. Generally, the largest densities and loads at sites downstream from Eminence not related to wet-weather flow were observed during a trail ride held

  5. Inhibition of jack bean urease by p-benzoquinone: elucidation of the role of thiols and reversibility of the process.

    Science.gov (United States)

    Kot, Mirosława

    2006-12-01

    p-Benzoquinone (pBQ) was studied as an inhibitor of jack bean urease in 20 mM phosphate buffer, pH 7.0, 1 mM EDTA, 25 degrees C. The inhibition was carried out by the use of a preincubation procedure in the absence of substrate. The influence of the inhibitor concentration and the preincubation time on the enzyme activity was elucidated. It was found that increase in pBQ concentration resulted in a linear decrease of urease activity. The dependence of the enzyme activity on the preincubation time showed that the rate of inhibition rapidly decreased at the beginning of the process in order to achieve the constant value. The inhibition became time independent in the studied time range. This observation is characteristic of a slow binding mechanism of inhibition. The protective experiment proved that the urease active site is involved in the binding of pBQ. High effectiveness of thiol protectors against pBQ inhibition indicates the strategic role of the active site sulfhydryl group in the blocking process. There were two methods used for reactivation of pBQ-inhibited urease. The dilution of the urease-pBQ complex in urea solution did not result in a regain of enzyme activity. Alternatively, the addition of dithiothreitol into the urease-pBQ mixture caused the instant and efficient reactivation of the enzyme. The experiments showed that the nature of the urease-pBQ complex is irreversible but the application of a specific thiol reagent can release the active enzyme from the complex.

  6. Jack bean (Canavalia ensiformis) urease. Probing acid-base groups of the active site by pH variation.

    Science.gov (United States)

    Krajewska, Barbara; Ciurli, Stefano

    2005-07-01

    A pH-variation study of jack bean (Canavalia ensiformis) urease steady-state kinetic parameters and of the inhibition constant of boric acid, a urease competitive inhibitor, was performed using both noninhibitory organic (MES, HEPES and CHES) and inhibitory inorganic (phosphate) buffers, in an effort to elucidate the functions exercised in the catalysis by the ionizable groups of the enzyme active site. The results obtained are consistent with the requirement for three groups utilized by urease with pK(a)s equal to 5.3+/-0.2, 6.6+/-0.2 and 9.1+/-0.4. Based on the appearance of the ionization step with pK(a)=5.3 in v(max)-pH, K(M)-pH and K(i)-pH profiles, we assigned this group as participating both in the substrate binding and catalytic reaction. As shown by its presence in v(max)-pH and K(M)-pH curves, the obvious role of the group with pK(a)=9.1 is the participation in the catalytic reaction. One function of the group featuring pK(a)=6.6, which was derived from a two-maxima v(max)-pH profile obtained upon increasing phosphate buffer concentration, an effect the first time observed for urease-phosphate systems, is the substrate binding, another possible function being modulation of the active site structure controlled by the ionic strength. It is also possible that the pK(a)=6.6 is a merger of two pK(a)s close in value. The study establishes that regular bell-shaped activity-pH profiles, commonly reported for urease, entail more complex pH-dependent behavior of the urease active site ionizable groups, which could be experimentally derived using species interacting with the enzyme, in addition to changing solution pH and ionic strength.

  7. Edible Film from Jack Bean Flour for Use as an Antioxidative Packaging Incorporating Extract of Green Tea

    Directory of Open Access Journals (Sweden)

    Triana Lindriati

    2015-01-01

    Full Text Available Addition of green tea’s extract in edible film’s matrix will improve film’s functionality. The film will has antioxidant properties and can protect food from rancidity and discoloration. In this research film based component was jack bean flour which has high content of carbohydrate and protein. The film had good mechanical and physical characters. The aim of this research was studying effect of green tea’s extract addition on phenolic, tannin concentration and antioxidant  activity of edible film. Extract of green tea was prepared with variation of temperature (28oC, 50oC and 100oC. The result showed that increasing of extraction temperature would increase phenolic content, tannin concentration and antioxidant  activity. When green tea extracted at 100oC phenolic concentration was 144.179 mg/g, tannin  was 50.345 mg/g and antioksidant activity was 58.8% (DPPH inhibition. After the extract was incorporated in to edible film, total phenolic concentration of film was 113.544 mg/g, tannin was 41.842 mg/g and antioxidant activity was 45.22%. Edible film with green tea addition, showed ability in inhibiting rancidity of peanut oil whereas peroxide value and TBA (Thio Barbituric Acid number of peanut oil was 11.5 meq O2/kg and 0.13 ml/g after edible film immersion in 5 days. Peroxide value and TBA number of peanut oil without edible film immersion was 20.3 meq O2/kg and 0.32 ml/g.

  8. Engineering task plan for upgrades to the leveling jacks on core sample trucks number 3 and 4

    Energy Technology Data Exchange (ETDEWEB)

    KOSTELNIK, A.J.

    1999-02-24

    Characterizing the waste in underground storage tanks at the Hanford Site is accomplished by obtaining a representative core sample for analysis. Core sampling is one of the numerous techniques that have been developed for use given the environmental and field conditions at the Hanford Site. Core sampling is currently accomplished using either Push Mode Core Sample Truck No.1 or; Rotary Mode Core Sample Trucks No.2, 3 or 4. Past analysis (WHC 1994) has indicated that the Core Sample Truck (CST) leveling jacks are structurally inadequate when lateral loads are applied. WHC 1994 identifies many areas where failure could occur. All these failures are based on exceeding the allowable stresses listed in the American Institute of Steel Construction (AISC) code. The mode of failure is for the outrigger attachments to the truck frame to fail resulting in dropping of the CST and possible overturning (Ref. Ziada and Hundal, 1996). Out of level deployment of the truck can exceed the code allowable stresses in the structure. Calculations have been performed to establish limits for maintaining the truck level when lifting. The calculations and the associated limits are included in appendix A. The need for future operations of the CSTS is limited. Sampling is expected to be complete in FY-2001. Since there is limited time at risk for continued use of the CSTS with the leveling controls without correcting the structural problems, there are several design changes that could give incremental improvements to the operational safety of the CSTS with limited impact on available operating time. The improvements focus on making the truck easier to control during lifting and leveling. Not all of the tasks identified in this ETP need to be performed. Each task alone can improve the safety. This engineering task plan is the management plan document for implementing the necessary additional structural analysis. Any additional changes to meet requirements of standing orders shall require a

  9. Jack bean (Canavalia ensiformis) urease induces eicosanoid-modulated hemocyte aggregation in the Chagas' disease vector Rhodnius prolixus.

    Science.gov (United States)

    Defferrari, M S; da Silva, R; Orchard, I; Carlini, C R

    2014-05-01

    Ureases are multifunctional proteins that display biological activities independently of their enzymatic function, such as induction of exocytosis and insecticidal effects. Rhodnius prolixus, a major vector of Chagas' disease, is a model for studies on the entomotoxicity of jack bean urease (JBU). We have previously shown that JBU induces the production of eicosanoids in isolated tissues of R. prolixus. In insects, the immune response comprises cellular and humoral reactions, and is centrally modulated by eicosanoids. Cyclooxygenase products signal immunity in insects, mainly cellular reactions, such as hemocyte aggregation. In searching for a link between JBU's toxic effects and immune reactions in insects, we have studied the effects of this toxin on R. prolixus hemocytes. JBU triggers aggregation of hemocytes after injection into the hemocoel and when applied to isolated cells. On in vitro assays, the eicosanoid synthesis inhibitors dexamethasone (phospholipase A2 indirect inhibitor) and indomethacin (cyclooxygenase inhibitor) counteracted JBU's effect, indicating that eicosanoids, more specifically cyclooxygenase products, are likely to mediate the aggregation response. Contrarily, the inhibitors esculetin and baicalein were inactive, suggesting that lipoxygenase products are not involved in JBU's effect. Extracellular calcium was also necessary for JBU's effect, in agreement to other cell models responsive to ureases. A progressive darkening of the medium of JBU-treated hemocytes was observed, suggestive of a humoral response. JBU was immunolocalized in the cultured cells upon treatment along with cytoskeleton damage. The highest concentration of JBU tested on cultured cells also led to nuclei aggregation of adherent hemocytes. This is the first time urease has been shown to affect insect hemocytes, contributing to our understanding of the entomotoxic mechanisms of action of this protein.

  10. 从“漩涡主义”到“非个性化理论”--庞德、艾略特诗学思想比较%From Vorticism to Impersonality Theory:A Contrastive Study of Poetics Between Ezra Pound and TS Eliot

    Institute of Scientific and Technical Information of China (English)

    戴毓庭

    2014-01-01

    庞德与艾略特是20世纪初意象派诗歌的代表人物,庞德对艾略特早期的诗歌创作有较大的影响,但之后两人形成了不同的诗学思想体系。通过比较分析两者的诗学理论和作品,发现庞德崇尚简约典雅的意象,强调以赋格的形式组织诗篇,以漩涡式的主题统摄诗歌,并追求东方式的诗歌境界。而艾略特的非个性化理论则深受法国象征主义影响,提出以客观对应物融合感受和思想,通过物像构成复杂的象征体系,以情感逃避的方式体现人类普遍情感。面对破碎的现实世界,两者都试图在诗歌中重塑艺术的一致性。%Both Ezra Pound and T. S. Eliot are representatives of the imagist poetry at the beginning of 20th century. With Pound's impact on Eliot's early composition, they have finally formed diverse poetics systems. A contrastive analysis of their poetics and poems is conducted to reveal dissimilarities between them. Pound, in favor of concise and graceful images, emphasizes the governing theme of a poem as a vortex and the construction of poetry in the form of Fugue, so as to approach the oriental poetry spirit. In a contrast, T. S. Eliot's impersonality, deeply affected by French Symbolism, tends to integrate thought and sensibility into the objective correlative, and endeavors to formulate complicated symbolic systems constituted by object images to express the universal emotion of humanity by constraining the subjective convey of emotion. In a chaotic world, both Pound and Eliot attempt to reshape the consistency of arts.

  11. Racist Quotes from Persons of Note, Part II.

    Science.gov (United States)

    Fikes, Robert, Jr.

    1988-01-01

    Offers racist quotes about Blacks, Jews, Hispanics, Asians, Italians, Poles, and others, from famous persons such as John Wayne, Woodrow Wilson, William F. Buckley, Richard Wagner, Jesse Helms, Sam Rayburn, Walter Lippman, Jack London, Paul Lynde, Theodore Roosevelt, Frank Sinatra, Errol Flynn, Ezra Pound, Richard M. Nixon, and Ronald Reagan. (BJV)

  12. 顶管施工引起古建筑地表沉降分析%Analysis of Historic Building Settlements Induced by Pipe Jacking Construction

    Institute of Scientific and Technical Information of China (English)

    曹书文; 陈平; 赵冬; 刘俊卿; 张卫喜

    2011-01-01

    为了对玉皇阁基础托换时提供参考,对顶管施工时玉皇阁阁体沉降进行了监测.在阁体的每面墙体上设置了七个测点,在施工期间每天定时进行沉降观测,得到了顶管施工过程中阁体沉降数据.由沉降数据可以看出,影响阁体沉降的主要因素为:(1)土体开挖引起应力释放;(2)纠偏引起的超挖;(3)摩擦力引起的箱梁周围空隙;(4)土体扰动后固结.并对此提出了合理的建议,为类似顶管工程提供参考.%To provide reference of foundation underpinning of Yu Huang pavilion, the settlements of Yu Huang pavilion are monitored in the pipe jacking construction period. 7 monitoring points were arranged on each wall of Yu Huang pavilion, the settlements were observed at a fix time everyday, and the settlements of Yu Huang pavilion were obtained in the pipe jacking construction period. From the data, it can be seen that the following main factors that affect the settlements of Yu Huang pavilion arc given: ( 1 ) stress release for soil excavation; ( 2 ) over excavation to rectification; ( 3 ) void around box girder due to friction; (4) soil consolidation after being disturbed. Proper suggestions are put forward in accordance with to these factors, which can provide reference for similar pipe jacking construction.

  13. Analysis of ITER NbTi and Nb3Sn CICCs experimental minimum quench energy with JackPot, MCM and THEA models

    Science.gov (United States)

    Bagni, T.; Duchateau, J. L.; Breschi, M.; Devred, A.; Nijhuis, A.

    2017-09-01

    Cable-in-conduit conductors (CICCs) for ITER magnets are subjected to fast changing magnetic fields during the plasma-operating scenario. In order to anticipate the limitations of conductors under the foreseen operating conditions, it is essential to have a better understanding of the stability margin of magnets. In the last decade ITER has launched a campaign for characterization of several types of NbTi and Nb3Sn CICCs comprising quench tests with a singular sine wave fast magnetic field pulse and relatively small amplitude. The stability tests, performed in the SULTAN facility, were reproduced and analyzed using two codes: JackPot-AC/DC, an electromagnetic-thermal numerical model for CICCs, developed at the University of Twente (van Lanen and Nijhuis 2010 Cryogenics 50 139-148) and multi-constant-model (MCM) (Turck and Zani 2010 Cryogenics 50 443-9), an analytical model for CICCs coupling losses. The outputs of both codes were combined with thermal, hydraulic and electric analysis of superconducting cables to predict the minimum quench energy (MQE) (Bottura et al 2000 Cryogenics 40 617-26). The experimental AC loss results were used to calibrate the JackPot and MCM models and to reproduce the energy deposited in the cable during an MQE test. The agreement between experiments and models confirm a good comprehension of the various CICCs thermal and electromagnetic phenomena. The differences between the analytical MCM and numerical JackPot approaches are discussed. The results provide a good basis for further investigation of CICC stability under plasma scenario conditions using magnetic field pulses with lower ramp rate and higher amplitude.

  14. Dynamic Modeling and Simulation of Jacking System in Jack-up Offshore Platform Based on Virtual Prototyping%基于数字样机技术的自升式海洋平台升降系统动力学建模及仿真

    Institute of Scientific and Technical Information of China (English)

    陈刚; 何斌

    2012-01-01

    在分析了自升式海洋平台升降系统结构与原理的基础上,利用三维建模软件对升降系统进行三维建模和虚拟装配,然后将其导入动力学分析软件形成数字样机.通过引入齿轮与齿条接触力对整套升降系统力学性能的影响分析,并参照实际的几何参数、物理特性、约束等信息完成动力学分析,最后以曲线图反映升降系统在给定条件下的动力学特性.结果表明考虑齿轮与齿条接触力使得仿真结果更加准确,验证了海洋平台升降系统设计的合理性.%Based on the analysis of the structure and principle of the jacking system in jack-up offshore platform, the 3D modeling and virtual prototyping of the system are done by 3D modeling software, which are then imported into the dynamic analysis software to form the numeral prototype. With reference to the actual geometric parameters, physical characteristics, constraints and other information, on the research of the gear and rack contact force on the mechanical properties of the full set of lifting system, the dynamics analysis is present with the simulation results, which demonstrates that the method is obviously helpful to get more accurate simulation results considering gear and rack contact force and verify the rationality of jacking system in jack-up offshore platform.

  15. Interview with Prof.Jack Richards on Foreign Language Teacher Professional Development%"微格教学":引领新教师成长的好途径著名语言教育专家Jack Richrds访谈录

    Institute of Scientific and Technical Information of China (English)

    郑新民; 房娜

    2011-01-01

    @@ Jack Richards教授生于新西兰,1972年毕业于加拿大拉瓦尔大学(Laval University),获应用语言学博士学位,应用语言学界著名教授,曾任教于新西兰、加拿大、印度尼西亚、新加坡、香港和美国等高校.

  16. Analysis on the Wing Jacking Equipment of Civil Aircraft%民机机翼千斤顶顶升装置分析

    Institute of Scientific and Technical Information of China (English)

    薄晓莉

    2011-01-01

    Jacking condition must be considered when maintaining and replacing parts of a civil aircraft. In this paper, relevant airworthiness standards is be analyzed, and the advantages and disadvantages of the 13737 and A320 aircraft wing lifting devices is compared, through the force transmission analysis. Vertical component of the 13737 wing jacking load is home by the reinforcing rib and pass to the front spar, horizontal component is borne by the lower skin through the hearing. Vertical component of the A320 wing jacking load is home by the reinforcing rib and pass to the rear spar, horizontal component is borne by the lower skin and the reinforcing rib through the bearing. The aircraft wing jacking connection joints of 13737 is simple, but the force transmission of A320 aircraft wing lifting connection is clearer.%千斤顶顶升情况是民用飞机在进行维修、更换零部件时必须考虑的一个状态。对民机顶升的相关适航条款进行了理解;对B737及A320的机翼顶升装置进行了总结对比,通过传力分析,比较了其优缺点。两种机型的传力方式稍有不同:B737机翼顶升载荷的垂直分量由加强肋承担主要传递到前梁,水平分量通过挤压由下壁板承担;A320机翼顶升载荷的垂直分量由加强肋承担,主要传递到后梁,水平分量通过挤压由下壁板和加强肋承担。B737机翼顶升接头的连接方式操作简单,但A320机翼顶升接头传力路径更清晰。

  17. Desidratação osmótica de fatias de jaca Osmotic dehydration of jack fruit slices

    Directory of Open Access Journals (Sweden)

    Maria Elita Martins Duarte

    2012-09-01

    Full Text Available O presente trabalho foi realizado com o objetivo de estudar a cinética e modelagem do processo de desidratação osmótica de fatias de jaca em geometria plana. O tratamento osmótico foi conduzido a 43 ºC, com agitação, utilizando-se de soluções de sacarose, nas concentrações de 40 e 50 ºBrix. O estudo da cinética de desidratação osmótica mostrou que na solução de sacarose a 50 ºBrix o valor da perda de água (WL foi maior ao final de 28,5 horas de processo (68,5% b.u para 40,2% b.u., ligeiramente superior ao encontrado para a solução de sacarose a 40 ºBrix, (68,5% b.u para 43% b.u.. Comportamento contrário ocorreu para o ganho de sólidos (SG. O ajuste dos dados experimentais foi realizado através dos modelos de Page e Fick. Pela análise da equação de Fick, verificou-se que os coeficientes de difusividade efetiva foram 0,5837 e 0,6677 mm² min-1 para 40 e 50 ºBrix, respectivamente.The present work was undertaken with the objective of studying the kinetics and the osmotic-dehydration modeling of slices of jack-fruit in a flat layout. The osmotic treatment was carried out at 43ºC, employing agitation, and using sucrose solutions at concentrations of 40º and 50º Brix. The study of the kinetics of osmotic dehydration showed that in the sucrose solution at 50º Brix, the value of the water-loss (WL was higher after 28.5 hours of processing (68.5% wb to 40.2% wb , slightly higher than that found for the sucrose solution at 40º Brix (68.5% wb to 43% wb. The opposite behavior was observed for the gain in solids (SG. Adjustment of the experimental data was done using the Page and Fick models. From the analysis of the Fick equation, it was found that the effective diffusivity coefficients were 0.5837 and 0.6677 mm² min-1 for 40º and 50º Brix, respectively.

  18. Sennar Jacks (Equus asinus)

    African Journals Online (AJOL)

    Ethiopian Veterinary Journal 2015, 19 (DJ 1-21 ... This study confirms that body characteristics of Sennar donkeys ... AI are feasible procedures for breed improvement in Sennar donkeys. ... the donkey types found in the Northwestern and central part of Ethiopia, is by ..... Proceedings of the Annual Convention of the. AAEP ...

  19. 杰克·伦敦作品中折射出的生存哲学%The Philosophy of Existence in Jack London's Works

    Institute of Scientific and Technical Information of China (English)

    赵谦

    2012-01-01

    Jack London is a well-known American realistic writer.In his work,there is always a reflection of the ideas of Schopenhauer,Nietzsche as well as Darwin's philosophy of existence."Love of Life","A Piece of Steak"and "Sea Wolf" are Jack London's most representative works which contain rich philosophy of existence.Interpretation of the philosophy embodied in these works has significance for the understanding of our present lives.%杰克·伦敦是美国著名的现实主义作家,他的作品中处处折射出叔本华、达尔文以及尼采等思想家的生存哲学。《热爱生命》、《一块牛排》和《海狼》是杰克.伦敦最具代表性的作品,其中蕴含着丰富的生存哲学。解读这些作品中所体现出的哲学思想,对于读者理解人生具有现实的指导意义。

  20. 钢管管道敞开式顶管纠偏控制%Deviation-Correction Control of Steel Pipe for Open Pipe Jacking

    Institute of Scientific and Technical Information of China (English)

    张肃肃

    2015-01-01

    Analysis and research on deviation‐correction of steel pipe for open pipe jacking ,combined with the different characteristic of surrounding rocks that centralized heating and cooling pipes project passed through in economic zone of CBD General Headquarters in Chongqing ,the litholocal included soil mass(earth backing) and bedrock(sandstone ,shale) ,carried on deviation‐correction control in pipe jacking launching. After the project finished ,the deviation of pipe was in the permissible range.%对钢管管道敞开式顶管纠偏进行了分析研究,结合重庆CBD总部经济区集中供冷供热管道工程施工中的土体(回填土体)、岩石(砂岩、页岩)的不同围岩特性,在顶管顶进过程中进行纠偏控制。工程完工后,管道偏差在允许范围内。

  1. Improving the problem of heavy gold plate resistance welding of half jack oil%沉金板阻焊半塞孔冒油问题改良

    Institute of Scientific and Technical Information of China (English)

    常盼; 邢玉伟

    2015-01-01

    为了降低沉金板阻焊半塞孔冒油比例,设计试验验证总结影响沉金板阻焊半塞孔冒油的影响因素:阻焊塞孔油墨更换、重氮片更换、显影参数调整及后烘参数优化等。通过试验逐一验证后输出控制措施从而达到改善沉金板阻焊半塞孔冒油问题。%In order to reduce the heavy gold plate resistance welding of half jack oil ratio, we made design test, summarized the influence factors of oil in plug hole: plug hole solder resist ink change, diazo replacement, imaging parameters adjustment and drying parameter optimization, etc. One by one through the test output control measures so as to achieve improved after heavy gold pl-ate resistance welding half jack take the purpose of the oil problem.

  2. Clinical Performance and Safety of 108 SpineJack Implantations: 1-Year Results of a Prospective Multicentre Single-Arm Registry Study

    Directory of Open Access Journals (Sweden)

    David Noriega

    2015-01-01

    Full Text Available This prospective, consecutive, multicentre observational registry aimed to confirm the safety and clinical performance of the SpineJack system for the treatment of vertebral compression fractures (VCF of traumatic origin. We enrolled 103 patients (median age: 61.6 years with 108 VCF due to trauma, or traumatic VCF with associated osteoporosis. Primary outcome was back pain intensity (VAS. Secondary outcomes were Oswestry Disability Index (ODI, EuroQol-VAS, and analgesic consumption. 48 hours after surgery, a median relative decrease in pain intensity of 81.5% was observed associated with a significant reduction in analgesic intake. Improvements in disability (91.3% decrease in ODI score and in quality of life (increase 21.1% of EQ-VAS score were obtained 3 months after surgery. All results were maintained at 12 months. A reduction in the kyphotic angulation was observed postoperatively (-5.4±6.3°; p<0.001, remained at 12 months (-4.4±6.0°, p=0.002. No adverse events were implant-related and none required device removal. Three patients (2.9% experienced procedure-related complications. The overall adjacent fracture rate up to 1 year after surgery was 2.9%. The SpineJack procedure is an effective, low-risk procedure for patients with traumatic VCF allowing a fast and sustained improvement in quality of life over 1 year after surgery.

  3. Maximum sustainable speed, energetics and swimming kinematics of a tropical carangid fish, the green jack Caranx caballus.

    Science.gov (United States)

    Dickson, K A; Donley, J M; Hansen, M W; Peters, J A

    2012-06-01

    Maximum sustained swimming speeds, swimming energetics and swimming kinematics were measured in the green jack Caranx caballus (Teleostei: Carangidae) using a 41 l temperature-controlled, Brett-type swimming-tunnel respirometer. In individual C. caballus [mean ±s.d. of 22·1 ± 2·2 cm fork length (L(F) ), 190 ± 61 g, n = 11] at 27·2 ± 0·7° C, mean critical speed (U(crit)) was 102·5 ± 13·7 cm s⁻¹ or 4·6 ± 0·9 L(F) s⁻¹. The maximum speed that was maintained for a 30 min period while swimming steadily using the slow, oxidative locomotor muscle (U(max,c)) was 99·4 ± 14·4 cm s⁻¹ or 4·5 ± 0·9 L(F) s⁻¹. Oxygen consumption rate (M in mg O₂ min⁻¹) increased with swimming speed and with fish mass, but mass-specific M (mg O₂ kg⁻¹ h⁻¹) as a function of relative speed (L(F) s⁻¹) did not vary significantly with fish size. Mean standard metabolic rate (R(S) ) was 170 ± 38 mg O₂ kg⁻¹ h⁻¹, and the mean ratio of M at U(max,c) to R(S) , an estimate of factorial aerobic scope, was 3·6 ± 1·0. The optimal speed (U(opt) ), at which the gross cost of transport was a minimum of 2·14 J kg⁻¹ m⁻¹, was 3·8 L(F) s⁻¹. In a subset of the fish studied (19·7-22·7 cm L(F) , 106-164 g, n = 5), the swimming kinematic variables of tailbeat frequency, yaw and stride length all increased significantly with swimming speed but not fish size, whereas tailbeat amplitude varied significantly with speed, fish mass and L(F) . The mean propulsive wavelength was 86·7 ± 5·6 %L(F) or 73·7 ± 5·2 %L(T) . Mean ±s.d. yaw and tailbeat amplitude values, calculated from lateral displacement of each intervertebral joint during a complete tailbeat cycle in three C. caballus (19·7, 21·6 and 22·7 cm L(F) ; 23·4, 25·3 and 26·4 cm L(T) ), were 4·6 ± 0·1 and 17·1 ± 2·2 %L(T) , respectively. Overall, the sustained swimming performance, energetics, kinematics, lateral displacement and intervertebral bending angles measured in C. caballus

  4. 基于JACK的民机维修任务仿真及人机工效评估%Maintenance Task Simulation and Ergonomic Assessment Based on JACK

    Institute of Scientific and Technical Information of China (English)

    郭庆; 马超

    2014-01-01

    在民用飞机产品的设计阶段考虑产品的可维修性,利用JACK软件对机务维修任务进行虚拟仿真以及对维修的舒适性、可达性、可视性进行人机工效评估,验证产品的可维修性并提出改进性的维修意见。首先将基于人机工效学设计的发动机UG模型导入JACK软件中创建分析对象;然后基于JACK建立虚拟人体模型,将虚拟人、维修对象导入三维虚拟环境中,并在任务仿真模块中完成维修任务的仿真;最后利用JACK软件的人机工效评估工具对维修任务仿真结果进行评估验证产品的可维修性及提出改进性的维修意见,这样既降低了飞机的维修成本,又验证了产品的可维修性。%To design of civilian aircraft product, the author uses the application of human-computer ergonomics principle and JACK software to simulate civil aircraft maintenance task and assess the ergonomic. Firstly, the engine UG model is imported to JACK software to creat the analysis objects and simulation objects. Secondly, virtual human body model is set up, then the virtual people and maintenance object are put into 3D virtual environment. In the simulation module, the maintenance task simulation is completed. Finally, JACK software ergonomic assessment tools are used to evaluate maintenance task simulation results and the improvement opinion is put forward which verify the serviceability of the product and reduce the manufacture cost.

  5. 顶管施工过程中的地面沉降风险控制%Risk control of land subsidence in the process of pipe jacking construction

    Institute of Scientific and Technical Information of China (English)

    王伟

    2016-01-01

    Pipe jacking is a very complicated system construction, and there are certain risks in each link of construction. Risks of land subsidence in the process of pipe jacking construction are analyzed in this article. Some risk control methods of land subsidence during pipe jacking construction are summarized, which could provide some references for land subsidence risk control of similar pipe jacking construction.%顶管施工是一项系统性很强的复杂工程,在施工的每个环节都存在一定的风险。本文主要针对顶管施工过程中的地面沉降风险进行分析,总结了一些关于顶管施工过程中地面沉降风险控制的方法,可为类似顶管工程施工的地面沉降风险控制提供参考。

  6. Ira B. Nadel, ed. The Cambridge Companion to Ezra Pound.

    Directory of Open Access Journals (Sweden)

    Axel Nesme

    2006-03-01

    Full Text Available Il s’agit ici, dans l’espace de 300 pages fort denses, de proposer au public une introduction à l’œuvre poundienne dans une perspective aussi bien littéraire, esthétique, philologique que politique et idéologique. L’ouvrage ne visant pas à esquisser un panorama des lectures critiques possibles, aucune orientation théorique n’est privilégiée.L’article de G. Bornstein examine l’interaction entre Pound et Yeats, H.D., T.S. Eliot et James Joyce de 1908 à 1925, placée sous le signe de la coopérati...

  7. “Magic Portraits Drawn by the Sun”: New Orleans, Yellow Fever, and the sense(s of death in Josh Russell’s Yellow Jack

    Directory of Open Access Journals (Sweden)

    Owen Robinson

    2012-01-01

    Full Text Available In ways comparable to the horrors of Hurricane Katrina and its aftermath in 2005, the series of yellow fever epidemics that devastated New Orleans through the nineteenth century were also the result, in part, of the city’s geographical position, its unforgiving climate, and the policies of interested parties; the fever’s awful death toll was likewise accompanied by a grotesque array of sights, sounds and smells. This article will focus upon Josh Russell’s 1999 novel Yellow Jack, which provides a complex portrait of the mid-nineteenth-century city, its fever epidemics, and its conflicting narratives. As well as providing an intense fictional encounter with a formative period in New Orleans’s history, Yellow Jack is a sophisticated study of the role of visual imagery in documenting such horrors, whose prose is steeped in the smells and sounds of the time and place. This article, then, will discuss this novel’s intense engagement with the various “senses” of a very particular Southern place.Dans un certain sens comparables à la tragédie et aux conséquences de l'ouragan Katrina en 2005, les séries d’épidémies de fièvre jaune qui dévastèrent La Nouvelle-Orléans au cours du XIXe siècle furent aussi — du moins partiellement — le résultat de la situation géographique de la ville, de son climat insupportable et de la politique des milieux intéressés; de manière semblable, la rage de cette fièvre ravageuse était accompagnée d’un ensemble grotesque d’images, de bruits et d’odeurs. Dans cet essai, je me limite au roman Yellow Jack de Josh Russell, qui, publié en 1999, trace le portrait complexe de cette ville du milieu du xixe siècle, de ses épidémies de fièvre et de ses récits contradictoires. Yellow Jack ne procure pas seulement une rencontre intense de fiction avec une importante phase historique de la ville mais aussi une étude sophistiquée sur le rôle de la représentation visuelle pour la

  8. Application of Design of Car Jack based on SolidWorks Motion%SolidWorks Motion在千斤顶设计中的应用

    Institute of Scientific and Technical Information of China (English)

    吕钦松

    2014-01-01

    The paper introduced the design and motion simulation way of jack based on SolidWorks software,and real-ized solving of torque and power of motor,which is helpful for selecting the type of motor or confirming length of rotating lever and provided some reference value for motion system design by using SolidWorks software.%介绍了应用 SolidWorks 对千斤顶进行 CAD 设计及运动仿真的方法,并利用 SolidWorks Motion运动仿真功能,实现了电动机转矩及功率的求解,这有助于电动机型号的选择和确定转动杠杆长度,对利用SolidWorks软件进行机构设计具有一定的指导意义。

  9. Graphene-encapsulated silica as matrix solid-phase dispersion extraction sorbents for the analysis of poly-methoxylated flavonoids in the leaves of Murraya panaculata (L.) Jack.

    Science.gov (United States)

    Sun, Ting; Li, Xuwen; Yang, Jie; Li, Lanjie; Jin, Yongri; Shi, Xiaolei

    2015-06-01

    In this study, graphene-encapsulated silica was synthesized by a hydrothermal reduction strategy. The presence of silica in graphene was identified by Fourier-transform infrared spectrometry, X-ray diffraction and scanning electron microscopy. The graphene-encapsulated silica subsequently was used as adsorbent for matrix solid-phase dispersion extraction of poly-methoxylated flavonoids from the dried leaves of Murraya panaculata (L.) Jack. Compared with the other adsorbents (graphene, silica gel, C18 silica, neutral alumina, diatomaceous earth) and without any adsorbents, better results were obtained. Then a method for analysis of poly-methoxylated flavonoids was established by coupling matrix solid-phase dispersion extraction with ultra high performance liquid chromatography and UV detection. Compared with reflux extraction and ultrasonic extraction, the proposed method is quicker, more efficient and more environmental protection. Less than 10 min is needed from extraction to detection.

  10. Analysis of the Surrounding Environment Influence Caused by Rectangular Pipe Jacking Construction in Shanghai%上海地区某大口径矩形顶管施工周边环境影响监测分析

    Institute of Scientific and Technical Information of China (English)

    孙亚峰

    2015-01-01

    顶管技术作为非开挖的技术中的一种,可以在不用开挖地表土的情况下将管道铺设完毕,具有其他开挖方式无可比拟的优点,其应用也越来越广泛。但是在顶管施工中,不可避免地会破坏管道周围土体原有的平衡,造成地面的沉降,对周边环境造成影响。相对于圆形顶管,矩形顶管对周围土体的扰动更大,从而引起的地面变形也更大。本文以上海市徐汇区某地下通道矩形顶管工程为背景,通过现场监测数据分析,得出了一些有益的结论。%As one of Trench less Technology ,Pipe jacking has the unparalleled advantage of finishing pipeline laying without excavating surface soil ,and has become widely used .However ,pipe jacking will inevitably break the original soil balance around the pipe ,leading to land subsidence and affect buildings surrounded ,even endangers their safety .Rela-tive to circular pipe jacking ,rectangular pipe jacking construction may disturb the soil more heavily and cause more sur-face deformation.This thesis based on the rectangular pipe jacking construction project of Shanghai Xuhui District under -ground passage .Through on-site monitoring data analysis ,some useful conclusions are obtained .

  11. 基于JACK的驾驶舱仿真及人机工效分析%Cockpit Simulation and Ergonomics Analysis Based on JACK

    Institute of Scientific and Technical Information of China (English)

    刘社明; 王小平; 陈登凯; 王淑侠

    2013-01-01

    To the design of cockpit,the author uses the principle of ergonomics and simulation of JACK software to propose a new kind of cabin layout.The JACK CATIA model is imported to create analysis objects and a digital human model based on ergonomics design of the cockpit,then adjust the posture of the digital human model to simulate the real environment of the driver in the cockpit.The paper proposes some improving advices to shorent the cycle of the design and reduce the costs of design and manufacture.%在驾驶舱的设计中应用人机工效学原理,利用JACK软件对舱内布局设计进行仿真及舒适性、可达域、可视域等工效进行评价,并提出修改意见.首先将基于人机工效学设计的驾驶舱的CATIA模型导入JACK软件中创建分析对象;然后基于JACK软件建立用于仿真工效分析的数字人模型(Digital Human Model),将数字人模型调整成驾驶员工作时的最优姿势,仿真驾驶员位于驾驶舱的虚拟环境.最后应用JACK软件的人机工效分析工具对驾驶舱内部进行分析并提出改进意见,这样既缩短了设计周期,又减少了设计制造费用.

  12. Evolution of Conifer Diterpene Synthases: Diterpene Resin Acid Biosynthesis in Lodgepole Pine and Jack Pine Involves Monofunctional and Bifunctional Diterpene Synthases1[W][OA

    Science.gov (United States)

    Hall, Dawn E.; Zerbe, Philipp; Jancsik, Sharon; Quesada, Alfonso Lara; Dullat, Harpreet; Madilao, Lina L.; Yuen, Macaire; Bohlmann, Jörg

    2013-01-01

    Diterpene resin acids (DRAs) are major components of pine (Pinus spp.) oleoresin. They play critical roles in conifer defense against insects and pathogens and as a renewable resource for industrial bioproducts. The core structures of DRAs are formed in secondary (i.e. specialized) metabolism via cycloisomerization of geranylgeranyl diphosphate (GGPP) by diterpene synthases (diTPSs). Previously described gymnosperm diTPSs of DRA biosynthesis are bifunctional enzymes that catalyze the initial bicyclization of GGPP followed by rearrangement of a (+)-copalyl diphosphate intermediate at two discrete class II and class I active sites. In contrast, similar diterpenes of gibberellin primary (i.e. general) metabolism are produced by the consecutive activity of two monofunctional class II and class I diTPSs. Using high-throughput transcriptome sequencing, we discovered 11 diTPS from jack pine (Pinus banksiana) and lodgepole pine (Pinus contorta). Three of these were orthologous to known conifer bifunctional levopimaradiene/abietadiene synthases. Surprisingly, two sets of orthologous PbdiTPSs and PcdiTPSs were monofunctional class I enzymes that lacked functional class II active sites and converted (+)-copalyl diphosphate, but not GGPP, into isopimaradiene and pimaradiene as major products. Diterpene profiles and transcriptome sequences of lodgepole pine and jack pine are consistent with roles for these diTPSs in DRA biosynthesis. The monofunctional class I diTPSs of DRA biosynthesis form a new clade within the gymnosperm-specific TPS-d3 subfamily that evolved from bifunctional diTPS rather than monofunctional enzymes (TPS-c and TPS-e) of gibberellin metabolism. Homology modeling suggested alterations in the class I active site that may have contributed to their functional specialization relative to other conifer diTPSs. PMID:23370714

  13. Geohydrologic Investigations and Landscape Characteristics of Areas Contributing Water to Springs, the Current River, and Jacks Fork, Ozark National Scenic Riverways, Missouri

    Science.gov (United States)

    Mugel, Douglas N.; Richards, Joseph M.; Schumacher, John G.

    2009-01-01

    The Ozark National Scenic Riverways (ONSR) is a narrow corridor that stretches for approximately 134 miles along the Current River and Jacks Fork in southern Missouri. Most of the water flowing in the Current River and Jacks Fork is discharged to the rivers from springs within the ONSR, and most of the recharge area of these springs is outside the ONSR. This report describes geohydrologic investigations and landscape characteristics of areas contributing water to springs and the Current River and Jacks Fork in the ONSR. The potentiometric-surface map of the study area for 2000-07 shows that the groundwater divide extends beyond the surface-water divide in some places, notably along Logan Creek and the northeastern part of the study area, indicating interbasin transfer of groundwater between surface-water basins. A low hydraulic gradient occurs in much of the upland area west of the Current River associated with areas of high sinkhole density, which indicates the presence of a network of subsurface karst conduits. The results of a low base-flow seepage run indicate that most of the discharge in the Current River and Jacks Fork was from identified springs, and a smaller amount was from tributaries whose discharge probably originated as spring discharge, or from springs or diffuse groundwater discharge in the streambed. Results of a temperature profile conducted on an 85-mile reach of the Current River indicate that the lowest average temperatures were within or downstream from inflows of springs. A mass-balance on heat calculation of the discharge of Bass Rock Spring, a previously undescribed spring, resulted in an estimated discharge of 34.1 cubic feet per second (ft3/s), making it the sixth largest spring in the Current River Basin. The 13 springs in the study area for which recharge areas have been estimated accounted for 82 percent (867 ft3/s of 1,060 ft3/s) of the discharge of the Current River at Big Spring during the 2006 seepage run. Including discharge from

  14. The effect of weathering on U-Th-Pb and oxygen isotope systems of ancient zircons from the Jack Hills, Western Australia

    Science.gov (United States)

    Pidgeon, R. T.; Nemchin, A. A.; Whitehouse, M. J.

    2017-01-01

    We report the result of a SIMS U-Th-Pb and O-OH study of 44 ancient zircons from the Jack Hills in Western Australia with ages ranging from 4.3 Ga to 3.3 Ga. We have investigated the behaviour of oxygen isotopes and water in the grains by determining δ18O and OH values at a number of locations on the polished surfaces of each grain. We have divided the zircons into five groups on the basis of their U-Th-Pb and OH-oxygen isotopic behaviour. The first group has concordant U-Th-Pb ages, minimal common Pb, δ18O values consistent with zircons derived from mantle source rocks and no detectable OH content. U-Th-Pb systems in zircons from Groups 2, 3 and 4 vary from concordant to extremely discordant where influenced by cracks. Discordia intercepts with concordia at approximately zero Ma age are interpreted as disturbance of the zircon U-Th-Pb systems by weathering solutions during the extensive, deep weathering that has affected the Archean Yilgarn Craton of Western Australia since at least the Permian. Weathering solutions entering cracks have resulted in an influx of Th and U. δ18O values of Group 2 grains fall approximately within the "mantle" range and OH is within background levels or slightly elevated. δ18O values of Group 3 grains are characterised by an initial trend of decreasing δ18O with increasing OH content. With further increase in OH this trend reverses and δ18O becomes heavier with increasing OH. Group 4 grains have a distinct trend of increasing δ18O with increasing OH. These trends are explained in terms of the reaction of percolating water with the metamict zircon structure and appear to be independent of analytical overlap with cracks. Group five zircons are characterised by U-Pb systems that appear to consist of more than one age but show only minor U-Pb discordance. Nevertheless trends in δ18O versus OH in this group of grains resemble trends seen in the other groups. The observed trends of δ18O with OH in the Jack Hills zircons are similar

  15. Field testing various container types in New Brunswick: A fifth year report on test areas established in 1985 with black spruce, white spruce and jack pine seedlings. Technique No. 92:05

    Energy Technology Data Exchange (ETDEWEB)

    1992-01-01

    Report on a containerized seedling response trial established in 1984/85 to determine which container type produces the best growing medium for seedling development over a five-year period. The trial used jack pine, white spruce and black spruce seedlings in various types of styroblock, paperpot, low density poly, and bareroot configurations. Response was determined by measuring and monitoring percent survival, change in height growth, volume, total height, and 1990 leaders length.

  16. Study on the Effect of Hole to Release Stresses on Compaction Effect During Jacked Pile Driving%应力释放孔对静压桩沉桩挤土效应的影响研究

    Institute of Scientific and Technical Information of China (English)

    王冲; 李巨龙; 罗开艳; 王晓; 郝柏园

    2012-01-01

    静压桩优点众多,但沉桩带来的挤土效应也十分明显.采用应力释放孔法能有效地减少沉桩带来的对周边环境的影响.通过借助FLAC3D有限元软件,采用分段压入的方式对单桩沉桩过程进行了模拟,得出了不同桩长时孔深和孔径的最佳组合,从而对实际的工程施工提供一定的参考.%Jacked pile has many advantages in engineering practice. But the compaction effect caused by jacked pile singking cannot be neglected. The hole to release stresses may reduce the unfavorable influence on the environment while jacked pile sinking. With the FLAC3D, this paper look on the process of driving pile as crushing soil step by step and simulates the pile driving, then concludes with the best combination of the depth and diameter of the hole, which will offer some reference for engineering practice.

  17. Geohydrologic feasibility study of the Powder River Basin for the potential application of a production process patented by Jack W. McIntyre

    Energy Technology Data Exchange (ETDEWEB)

    Kvasnicka, D.E.

    1993-08-01

    Geraghty & Miller, Inc. of Midland, Texas conducted geologic and hydrologic feasibility studies of the potential applicability of a patented (US Patent Office No. 4,766,957) process developed by Jack W. McIntyre for the recovery of natural gas from coalbed/sand formations in the Powder River Basin. General research, based on a review of published literature from both private and public sources, indicates that the shallow, thick subbituminous coal seams found in the Powder River Basin exhibit significant potential for the application of this patented process. These coal deposits can be characterized, on the basis of established coalbed methane production, as being highly water productive. The desorption and economic recovery of coalbed methane, widely believed to be biogenic in origin, from these low-grade deposits will require the subsequent dewatering of these geologic formations. The patented process, developed by Mr. McIntyre and described in the compendium of this study, may offer a cost-effective means of methane recovery and downhole disposal of produced groundwaters.

  18. Ants with Attitude: Australian Jack-jumpers of the Myrmecia pilosula species complex, with descriptions of four new species (Hymenoptera: Formicidae: Myrmeciinae).

    Science.gov (United States)

    Taylor, Robert W

    2015-01-21

    The six known "Jack-jumper species Myrmecia pilosula Fr. Smith 1858, M. croslandi Taylor 1991, M. banksi, M. haskinsorum, M. imaii and M. impaternata spp.n. are reviewed, illustrated and keyed. Myrmecia imaii is known only from southwest Western Australia, the others variously from southeastern Australia and Tasmania. These taxa were previously confused under the name M. pilosula (for which a lectotype is designated). Previous cytogenetical findings, which contributed importantly to current taxonomic understanding, are summarized for each species. Eastern and Western geographical races of the widespread M. pilosula are recognized. Myrmecia croslandi is one of only two eukaryote animals known to possess a single pair of chromosomes (2n=2 3 or 4). Myrmecia impaternata is evidentially an allodiploid (n=5 or 14, 2n=19) sperm-dependent gynogenetic hybrid between M. banksi and an element of the eastern race of M. pilosula, or their immediate ancestry. The sting-injected venom of these ants can induce sometimes fatal anaphylaxis in sensitive humans. 

  19. Response of Boreal Jack Pine (Pinus banksiana Lamb. Stands to a Gradient of Commercial Thinning Intensities, with and without N Fertilization

    Directory of Open Access Journals (Sweden)

    Julien Moulinier

    2015-07-01

    Full Text Available This study examines tree and stand response to a gradient of commercial thinning intensities and nitrogen fertilization (200 kg N ha−1 in nine jack pine (Pinus banksiana stands of Eastern Canada over a period of 14 years. Thinning intensity ranged from 0% basal area removal in control plots to 64% in thinned plots. Tree diameter increment, absolute and relative volume increment and mean volume increased with thinning intensity and were higher in fertilized plots. Individual tree response depended on tree diameter, with smallest trees exhibiting highest relative volume increment to thinning intensity. Stand basal area increment was positively associated to initial stand basal area and negatively to stand age. In thinned and fertilized plots, stand volume increment was higher and natural mortality lower than in fertilized only and unfertilized control plots over the 5–14 year period after thinning. However, the positive effect of fertilization on tree volume increment decreased with thinning intensity. Despite positive individual tree growth responses to thinning and fertilization, residual stand volume increment decreased with increased thinning intensity in both fertilized and unfertilized plots. While total cumulative stand volume (harvested + residual also decreased with thinning intensity in unfertilized plots, comparable total volumes were observed in fertilized + thinned and unthinned control plots. Nitrogen fertilization in the years following commercial thinning enhanced the benefit of thinning on these relatively poor sites by increasing tree diameter growth, lowering mortality, and increasing total stand merchantable volume compared to unfertilized thinned stands.

  20. An Official American Thoracic Society Workshop Report: Presentations and Discussion of the Sixth Jack Pepys Workshop on Asthma in the Workplace.

    Science.gov (United States)

    Tarlo, Susan M; Malo, Jean-Luc; de Blay, Frédéric; Le Moual, Nicole; Henneberger, Paul; Heederik, Dick; Raulf, Monika; Carlsten, Christopher; Cartier, André

    2017-09-01

    The Sixth Jack Pepys Workshop on Asthma in the Workplace focused on six key themes regarding the recognition and assessment of work-related asthma and airway diseases: (1) cleaning agents and disinfectants (including in swimming pools) as irritants and sensitizers: how to evaluate types of bronchial reactions and reduce risks; (2) population-based studies of occupational obstructive diseases: use of databanks, advantages and pitfalls, what strategies to deal with biases and confounding?; (3) damp environments, dilapidated buildings, recycling processes, and molds, an increasing problem: mechanisms, how to assess causality and diagnosis; (4) diagnosis of occupational asthma and rhinitis: how useful are recombinant allergens (component-resolved diagnosis), metabolomics, and other new tests?; (5) how does exposure to gas, dust, and fumes enhance sensitization and asthma?; and (6) how to determine probability of occupational causality in chronic obstructive pulmonary disease: epidemiological and clinical, confirmation, and compensation aspects. A summary of the presentations and discussion is provided in this proceedings document. Increased knowledge has been gained in each topic over the past few years, but there remain aspects of controversy and uncertainty requiring further research.

  1. An official American Thoracic Society proceedings: work-related asthma and airway diseases. Presentations and discussion from the Fourth Jack Pepys Workshop on Asthma in the Workplace.

    Science.gov (United States)

    Tarlo, Susan M; Malo, Jean-Luc

    2013-08-01

    Work-related asthma is a common occupational lung disease. The scope of the Fourth Jack Pepys Workshop that was held in May 2010 went beyond asthma to include discussion of other occupational airway diseases, in particular occupationally related chronic obstructive pulmonary disease (COPD) and bronchiolitis. Aspects explored included public health considerations, environmental aspects, outcome after diagnosis, prevention and surveillance, and other work-related obstructive airway diseases. Consistent methods are needed to accurately estimate the comparative burden of occupation-related airway diseases among different countries. Challenges to accomplishing this include variability in health care delivery, compensation systems, cultural contexts, and social structures. These factors can affect disease estimates, while heterogeneity in occupations and workplace exposures can affect the underlying true prevalence of morbidity. Consideration of the working environment included discussion of practical methods of limiting exposure to respiratory sensitizers, methods to predict new sensitizers before introduction into workplaces, the role of legislated exposure limits, and models to estimate relative validity of various ameliorative measures when complete avoidance of the sensitizer is not feasible. Other strategies discussed included medical surveillance measures and education, especially for young individuals with asthma and new workers about to enter the workforce. Medical outcomes after development of sensitizer-induced occupational asthma are best following earlier diagnosis and removal from further exposure, but a subset may be able to continue working safely provided that exposure is reduced under close follow-up monitoring. It was recognized that occupationally related COPD is common but underappreciated, deserving further study and prevention efforts.

  2. Acute, reproductive toxicity and two-generation teratology studies of a standardized quassinoid-rich extract of Eurycoma longifolia Jack in Sprague-Dawley rats.

    Science.gov (United States)

    Low, Bin-Seng; Das, Prashanta Kumar; Chan, Kit-Lam

    2014-07-01

    The roots of Eurycoma longifolia Jack are popularly sought as herbal medicinal supplements to improve libido and general health amongst the local ethnic population. The major quassinoids of E. longifolia improved spermatogenesis and fertility but toxicity studies have not been well documented. The reproductive toxicity, two generation of foetus teratology and the up-and-down acute toxicity were investigated in Sprague-Dawley rats orally treated with quassinoid-rich E. longifolia extract (TAF273). The results showed that the median lethal dose (LD50 ) of TAF273 for female and male rats was 1293 and >2000 mg/kg, respectively. Fertility index and litter size of the TAF273 treated were significantly increased when compared with those of the non-treated animals. The TAF273-treated dams decreased in percentage of pre-implantation loss, post-implantation loss and late resorption. No toxic symptoms were observed on the TAF273-treated pregnant female rats and their foetuses were normal. The no-observed adverse effect level (NOAEL) obtained from reproductive toxicity and teratology studies of TAF273 in rats was 100 mg/kg body weight/day, being more than 10-fold lower than the LD50 value. Thus, any human dose derived from converting the rat doses of 100 mg/kg and below may be considered as safe for further clinical studies.

  3. New insights about the population structure of the blue jack mackerel (Trachurus picturatus in the NE Atlantic using otolith stable isotope ratios

    Directory of Open Access Journals (Sweden)

    Cláudia Moreira

    2015-11-01

    Full Text Available The blue jack mackerel Trachurus picturatus is a pelagic fish widely distributed in the NE Atlantic and also found in the Mediterranean and Black Seas. It is an economically important resource in the Macaronesian islands of Azores, Madeira and Canaries, but despite its fishery value and ecological importance, fluctuations in the landings are difficult to explain since studies regarding the population dynamics, stocks structure, fish movements and habitat connectivity are inexistent. The populations of marine pelagic fishes, in particular the migratory ones, such as T. picturatus,, may be erroneously considered an homogenous population unit because they show broad geographic distributions, large population sizes and high migratory movements. Stable isotope ratios, namely δ18O and δ13C, measured by standard mass spectrometric techniques in whole otolith samples of T. picturatus adults sampled in the fishery grounds of the Islands of Azores, Madeira and Canaries, and at the Portuguese mainland (Matosinhos, Peniche and Portimão during the spring-summer of 2013 were analysed. The 18O signatures followed the general tendency taking into account the seawater temperatures of the sampling regions. 13C signatures showed however differences between the oceanic or continental origin of the fish. Both variables provided location-specific signatures. Further studies including mitochondrial and nuclear DNA studies are also been conducted to acquire new knowledge for fisheries conservation purposes.

  4. Toxicity of fixed oil and crude extract from sa-dao-thiam, Azadirachta excelsa (Jack seed kernel to Aedes aegypti (L.

    Directory of Open Access Journals (Sweden)

    Ekkarat Kaewnang-O

    2011-02-01

    Full Text Available The larvicidal activity of various concentrations of fixed oil and crude extract from sa-dao-thiam, Azadirachta excelsa(Jack seed kernel was assayed on an Aedes aegypti (L. test population under controlled laboratory conditions. Concentrationlevels of responses at 24, 48, 72, and 96 hrs were evaluated. The LC50 values of the fixed oil and the crude extract were403.6 and 518.7 ppm, respectively. One hundred percent mortality in 24 hrs-post treatment was achieved at 2,000 and 4,000ppm for the oil and crude extract, respectively. It suggested that the oil is more toxic to Ae. aegypti larvae than the crudeextract. Further investigation suggested the occurrence of molting inhibition of Ae. aegypti larvae by the fixed oil and crudeextract as indicated by the small number of emerged adults. In addition, histological study suggested that damages on theepithelial cells of the midgut could result from the effects of the oil and crude extract. Hypertrophy and degeneration of theepithelial cells were observed, resulting in a presence of some cytoplasmic material in the alimentary canal. Further studiesshould be taken into account to identify their stability and residual activity of these products under field conditions.

  5. The Antiquarian and the Myth ofAntiquity: The Origins of Rome in Renaissance Thought, by Philip Jacks, Cambridge University Press, Cambridge

    Directory of Open Access Journals (Sweden)

    James E. Snead

    1995-11-01

    Full Text Available Attempts to understand the history of archaeology must inevitably face the issue of origins; while historical consciousness is common to human society, studying the past through the detailed excavation, analysis, and acquisition of its material remains has until recent generations been largely the domain of European society and its descendants. There is nothing inherently logical about this pursuit; the evolution of archaeology as a way of knowing the past has specifIc historical roots and antecedents in western society and needs to be understood in light of these circumstances. The Renaissance is arguably the cultural hearth in which archaeology took shape. Scholars of the age who seem to anticipate our own predilections. such as Cyriaco D'Ancona, are usually to be found in introductory chapters of archaeological textbooks immediately following Nabonidus of Babylon. Jacks takes a more contextual approach, discussing the relationships between scholarship and society in Italy from the late Medieval period through the 16th century. This is not a general history of antiquar­ian thought during the Renaissance, nor is it a study of the work of a specific individual. The author takes as his focus the changing perceptions of antiquity held by scholars of the age, with particular emphasis on the construction and manipulation of images of ancient Rome.

  6. Phytochemical Screening and in Vitro Ovicidal, Larvacidal, and Nematicidal Effects of Murraya paniculata (L. Jack Extract on Gastrointestinal Parasites of Goats

    Directory of Open Access Journals (Sweden)

    G. E. Tresia

    2016-12-01

    Full Text Available In our previous research, kemuning leaves (Murraya paniculata L. Jack was shown to have the capability as an anthelmintic candidate for PE (Ettawa crossbred lactating dairy goats by reducing 43.67% of the egg per gram (EPG of Strongylida compared to 0.0005% in orally treated with Oxfendazole as a control. To confirm it, the aim of this in vitro study was to determine the effective dosage of kemuning leaves from two extraction methods (infuse and maceration to reduce the Trichostrongylidae and to evaluate the bioactive compounds of the leaves. The research was conducted using a randomized complete design with 11 treatments and 5 replications. The treatments consisted of control (0.0005% and 0.005% Oxfendazole, kemuning leaves infuse extract (KIE and maceration extract (KME each with level of 1%, 3%, 5%, and 7% (w/v. The results showed that the LT50 gradually decreased (shortening the lethal time and the mortality of Trichostrongylidae gradually increased associated with the increased concentration of treatment (P<0.01. The infusion of 7% kemuning extract demonstrated the highest efficiency in reducing the larval development, infective larvae, and the adult Trichostrongylidae by 93.16%, 94.39%, and 90%, respectively.  This treatment could be developed as the most prospective herbal anthelmintic drug in controlling the infection by Trichostrongylidae.

  7. 浮托顶推法架设64m钢桁梁技术%Technology of Erecting 64 m Span Steel Truss Girder with Float Tow and Jack - in Method

    Institute of Scientific and Technical Information of China (English)

    张云昭

    2011-01-01

    研究目的:浮托顶推法架设钢桁梁的施工设施主要由膺架、滑道、水上浮托支承、顶推纵移、方向及定位控制等五大系统组成.文章介绍了其工艺原理、工艺流程、操作步骤和主要安全质量措施,对修建同类桥梁具有重要的指导意义和借鉴意义.研究结论:浮托顶推法架设钢桁梁是在一般浮拖法架梁基础上的创新,它与一般浮拖法架梁的主要区别是钢梁纵移的动力不同,即采用钢桁梁后端的顶推装置代替前方的牵引设备,具有设备简单、操作方便、速度均匀、运行平稳、有利安全的特点.%Research purposes: Erecting the steel truss girder with the float tow and jack -in method needs five systems of the corbelling, slideway , bearing of uplift force, longitudinal movement by jack - in, and direction and position controller. This paper introduces the main technique principle, the technological process, operation steps and the measures of ensuring safety and quality of erecting the steel truss girder with the float toe and jack - in method for providing the reference to construction of similar bridge.Research conclusions:The float tow and jack -in method is the innovation based on the traditional float toe method. It is different from the traditional float toe method in the power to make the girder longitudinal moving. Namely, it uses the jack -in device at the rear end of steel truss to substitute the traction device in the front of the steel truss, with the features of using simply equipments, easy operation, even velocity, smooth running and ensuring the security.

  8.  Jack Kerouac’s Ecopoetics in The Dharma Bums and Desolation Angels : Domesticity, Wilderness and Masculine Fantasies of Animality

    Directory of Open Access Journals (Sweden)

    Pierre-Antoine Pellerin

    2012-05-01

    Full Text Available Throughout his autobiographical cycle of fourteen novels, Jack Kerouac tried to present his narrator and his protagonists as archetypes of American masculinity who fought against their perceived domestication in a society which they characterized as undergoing feminization. Whether it be in the Sierra Nevada in 1955, in The Dharma Bums (1958,or in the Northern Cascades in 1956, in Desolation Angels (1965, Kerouac’s alter ego and first-person narrator engages in an escapist fantasy into the animal realm where he can regain a sense of authentic masculine identity, away from the feminizing effects of domesticity and civilization. Yet, large wild animals are almost never to be found in his novels and the long-awaited encounter with deadly predators does not occur, forcing the narrator to reconfigure the relationship between masculinity and animality. Taking the popular hunting narratives featured in men’s adventure magazines as the dominant norm in this regard, this paper aims at showing how Kerouac’s representation of masculinity and animality strongly diverges from the erotics of male predation to be found in the “real man VS wild beast” plot. In those two novels, his poetics revolves instead around notions of kinship and sentimentality towards smaller animals, transforming the manly ethos and the inhospitable wilderness of adventure stories of the times into a domestic world of mutual harmony and hospitality.Tout au long de son cycle autobiographique de quatorze romans, Jack Kerouac présente son narrateur et les protagonistes de ses récits comme des archétypes de la masculinité américaine engagés dans une lutte contre leur domestication supposée dans une société qu’ils jugent en voie de féminisation. Que ce soit dans la Sierra Nevada en 1955, dans The Dharma Bums (1958, ou dans les Northern Cascades en 1956, dans Desolation Angels (1965, l’alter-ego et narrateur à la première personne de Kerouac se lance dans une fuite

  9. Inhibition of jack bean urease by 1,4-benzoquinone and 2,5-dimethyl-1,4-benzoquinone. Evaluation of the inhibition mechanism.

    Science.gov (United States)

    Zaborska, Wiesława; Kot, Mirosława; Superata, Kinga

    2002-08-01

    1,4-benzoquinone (BQ) and 2,5-dimethyl-1,4-benzoquinone (DMBQ) were studied as inhibitors of jack bean urease in 50 mM phosphate buffer, pH 7.0. The mechanisms of inhibition were evaluated by progress curves studies and steady-state approach to data achieved by preincubation of the enzyme with the inhibitor. The obtained reaction progress curves were time-dependent and characteristic of slow-binding inhibition. The effects of different concentrations of BQ and DMBQ on the initial and steady-state velocities as well as the apparent first-order velocity constants obeyed the relationships of two-step enzyme-inhibitor interaction, qualified as mechanism B. The rapid formation of an initial BQ-urease complex with an inhibition constant of Ki = 0.031 mM was followed by a slow isomerization into the final BQ-urease complex with the overall inhibition constant of Ki* = 4.5 x 10(-5) mM. The respective inhibition constants for DMBQ were Ki = 0.42 mM, Ki* = 1.2 x 10(-3) mM. The rate constants of the inhibitor-urease isomerization indicated that forward processes were rapid in contrast to slow reverse reactions. The overall inhibition constants obtained by the steady-state analysis were found to be 5.1 x 10(-5) mM for BQ and 0.98 x 10(-3) mM for DMBQ. BQ was found to be a much stronger inhibitor of urease than DMBQ. A test, based on reaction with L-cysteine, confirmed the essential role of the sulfhydryl group in the inhibition of urease by BQ and DMBQ.

  10. In vitro screening and evaluation of some Indian medicinal plants for their potential to inhibit Jack bean and bacterial ureases causing urinary infections.

    Science.gov (United States)

    Bai, Sheema; Bharti, Pooja; Seasotiya, Leena; Malik, Anupma; Dalal, Sunita

    2015-03-01

    Bacterial ureases play an important role in pathogenesis of urinary infections. Selection of plants was done on the basis of their uses by the local people for the treatment of various bacterial and urinary infections. Our investigation screens and evaluates 15 Indian medicinal plants for their possible urease inhibitory activity as well as their ability to inhibit bacteria causing urinary infections. Plant extracts in three different solvents (methanol, aqueous, and cow urine) were screened for their effect on Jack-bean urease using the phenol-hypochlorite method. Subsequently, seven bacterial strains were screened for their ability to release urease and further antimicrobial-linked urease inhibition activity and minimum inhibitory concentration of the tested extracts were evaluated by the agar well diffusion and microdilution method, respectively. Five plants out of 15 crude extracts revealed good urease inhibitory activity (≥ 20% at 1 mg/ml conc.) and IC50 values for these extracts ranged from 2.77 to 0.70 mg/ml. Further testing of these extracts on urease-producing bacterial strains (Staphylococcus aureus NCDC 109, S. aureus MTCC 3160, Proteus vulgaris MTCC 426, Klebsiella pneumoniae MTCC 4030, and Pseudomonas aeruginosa MTCC 7453) showed good anti-urease potency with an MIC ranging from 500 to 7.3 µg/ml. The results of screening as well as susceptibility assay clearly revealed a strong urease inhibitory effect of Acacia nilotica L. (Fabaceae), Emblica officinalis Gaertn. (Phyllanthaceae), Psidium guajava L. (Myrtaceae), Rosa indica L. (Rosaceae), and Terminalia chebula Retz. (Combretaceae). Our findings may help to explain the beneficial effect of these plants against infections associated with the urease enzyme.

  11. Antioxidant Activity of Artocarpus heterophyllus Lam. (Jack Fruit Leaf Extracts: Remarkable Attenuations of Hyperglycemia and Hyperlipidemia in Streptozotocin-Diabetic Rats

    Directory of Open Access Journals (Sweden)

    Haidy S. Omar

    2011-01-01

    Full Text Available The present study examines the antioxidative, hypoglycemic, and hypolipidemic activities of Artocarpus heterophyllus (jack fruit leaf extracts (JFEs. The 70% ethanol (JFEE, n-butanol (JFBE, water (JFWE, chloroform (JFCE, and ethyl acetate (JFEAE extracts were obtained. Both JFEE and JFBE markedly scavenge diphenylpicrylhydrazyl radical and chelate Fe+2in vitro. A compound was isolated from JFBE and identified using 1D and 2D 1H- and 13C-NMR. The administration of JFEE or JFBE to streptozotocin (STZ-diabetic rats significantly reduced fasting blood glucose (FBG from 200 to 56 and 79 mg%, respectively; elevated insulin from 10.8 to 19.5 and 15.1 μU/ml, respectively; decreased lipid peroxides from 7.3 to 5.4 and 5.91 nmol/ml, respectively; decreased %glycosylated hemoglobin A1C (%HbA1C from 6.8 to 4.5 and 5.0%, respectively; and increased total protein content from 2.5 to 6.3 and 5.7 mg%, respectively. Triglycerides (TG, total cholesterol (TC, low-density lipoprotein cholesterol (LDL-C, VLDL-C, and LDL/HDL ratio significantly declined by -37, -19, -23, -37, and -39%, respectively, in the case of JFEE; and by -31, -14, -17, -31, and -25%, respectively, in the case of JFBE; as compared to diabetic rats. HDL-C increased by +37% (JFEE and by +11% (JFBE. Both JFEE and JFBE have shown appreciable results in decreasing FBG, lipid peroxides, %HbA1C, TC, LDL-C, and TG levels, and increasing insulin, HDL-C, and protein content. The spectrometric analysis confirmed that the flavonoid isolated from JFBE was isoquercitrin. We can conclude from this study that JFEE and JFBE exert hypoglycemic and hypolipidemic effects in STZ-diabetic rats through an antioxidative pathway that might be referred to their flavonoid contents.

  12. The inverse microconglomerate test: Definition and application to the preservation of Paleoarchean to Hadean magnetizations in metasediments of the Jack Hills, Western Australia

    Science.gov (United States)

    Cottrell, Rory; Tarduno, John; Bono, Richard; Dare, Matthew

    2016-04-01

    We introduce a new paleomagnetic field test, the inverse microconglomerate test. In contrast with traditional conglomerate tests, which target specimens that might preserve primary magnetizations, the inverse microconglomerate test focuses on magnetic carriers having unblocking temperatures less than peak metamorphic temperatures. These mineral carriers are expected to carry a consistent direction of remagnetization. Hence, the inverse microconglomerate test evaluates whether coherent magnetizations are retained on a grain/mineral scale in a given sedimentary rock sample. By defining the remagnetization direction, it also serves as a benchmark for comparison of magnetizations from other grains/minerals having unblocking temperatures higher than peak metamorphic conditions (i.e., potential primary magnetizations). We apply this new test to sediments of the Jack Hills (JH), Yilgarn craton, Western Australia. For the JH sediments we focus on fuchsite, a secondary Cr-mica that contains relict Cr-Fe spinels capable of recording remanent magnetizations. We find that JH fuchsite grains retain consistent magnetic directions at unblocking temperatures between ˜270 and 340 oC, which defines a positive test. This direction does not reproduce a nominal 1078-1070 Ma remagnetization reported by Weiss et al. (EPSL, 2015) that we interpret as an artifact of inappropriate use of averaging and statistics. The thermochemical remanent magnetization recorded by the fuchsite was most likely imparted during peak JH metamorphic conditions at ˜2650 Ma. Our inverse microconglomerate test complements a positive microconglomerate test and large scale positive conglomerate test conducted on JH cobbles (Tarduno and Cottrell, EPSL, 2013), further supporting evidence that JH zircons record Paleoarchean to Hadean primary magnetizations at high (greater than 550 oC) unblocking temperatures (Tarduno et al., Science, 2015). More generally, the new inverse microconglomerate test may aid in

  13. Application of GNSS-RTK derived topographical maps for rapid environmental monitoring: a case study of Jack Finnery Lake (Perth, Australia).

    Science.gov (United States)

    Schloderer, Glen; Bingham, Matthew; Awange, Joseph L; Fleming, Kevin M

    2011-09-01

    In environmental monitoring, environmental impact assessments and environmental audits, topographical maps play an essential role in providing a means by which the locations of sampling sites may be selected, in assisting with the interpretation of physical features, and in indicating the impact or potential impact on an area due to changes in the system being monitored (e.g., spatially changing features such as wetlands). Global Navigation Satellite Systems (GNSS) are hereby presented as a rapid method for monitoring spatial changes to support environmental monitoring decisions and policies. To validate the GNSS-based method, a comparison is made of results from a small-scale topographic survey using radio-based real-time kinematic GNSS (GNSS-RTK) and total station survey methods at Jack Finnery Lake, Perth, Australia. The accuracies achieved by the total station in this study were 2 cm horizontally and 6 cm vertically, while the GNSS-RTK also achieved an accuracy of 2 cm horizontally, but only 28 cm vertically. While the GNSS-RTK measurements were less accurate in the height component compared to those from the total station method, it is still capable of achieving accuracies sufficient for a topographic map at a scale of 1:1,750 that could support environmental monitoring tasks such as identifying spatial changes in small water bodies or wetlands. The time taken to perform the survey using GNSS-RTK, however, was much shorter compared to the total station method, thereby making it quite suitable for monitoring spatial changes within an environmental context, e.g., dynamic mining activities that require rapid surveys and the updating of the monitored data at regular intervals.

  14. Diet diversity of jack and chub mackerels and ecosystem changes in the northern Humboldt Current system: A long-term study

    Science.gov (United States)

    Alegre, Ana; Bertrand, Arnaud; Espino, Marco; Espinoza, Pepe; Dioses, Teobaldo; Ñiquen, Miguel; Navarro, Iván; Simier, Monique; Ménard, Frédéric

    2015-09-01

    Jack mackerel Trachurus murphyi (JM) and chub mackerel Scomber japonicus (CM) are medium size pelagic fish predators and highly exploited resources. Here we investigated the spatiotemporal patterns of JM and CM diet composition using a large dataset of stomach samples collected from 1973 to 2013 along the Peruvian coast. In total 47,535 stomachs (18,377 CM and 29,158 JM) were analysed, of which 23,570 (12,476 CM and 11,094 JM) were non-empty. Results show that both species are opportunistic and present a trophic overlap. However, despite their smaller maximal size, CM consumed more fish than JM. Both diets presented high spatiotemporal variability. Spatially, the shelf break appears as a strong biogeographical barrier affecting prey species distribution and thus CM and JM diet. Opportunistic foragers are often considered as actual indicators of ecosystem changes; we show here that diet composition of CM and JM reveal ecosystem changes but is not always a good indicator of changes in prey biomass as prey accessibility and energy content can also play an important role. In addition we found that El Niño events have a surprisingly weak effect on stomach fullness and diet. Finally our results show that the classic paradigm of positive correlation between diversity and temperature is unlikely to occur in the Humboldt Current system where productivity seems to be the main driver. We show how energy content of forage species and the strength of the oxygen minimum zone most likely play an important role prey diversity and accessibility, and thus in fish foraging behaviour.

  15. Antioxidant Activity and ROS-Dependent Apoptotic Effect of Scurrula ferruginea (Jack) Danser Methanol Extract in Human Breast Cancer Cell MDA-MB-231

    Science.gov (United States)

    Marvibaigi, Mohsen; Amini, Neda; Supriyanto, Eko; Abdul Majid, Fadzilah Adibah; Kumar Jaganathan, Saravana; Jamil, Shajarahtunnur; Hamzehalipour Almaki, Javad; Nasiri, Rozita

    2016-01-01

    Scurrula ferruginea (Jack) Danser is one of the mistletoe species belonging to Loranthaceae family, which grows on the branches of many deciduous trees in tropical countries. This study evaluated the antioxidant activities of S. ferruginea extracts. The cytotoxic activity of the selected extracts, which showed potent antioxidant activities, and high phenolic and flavonoid contents, were investigated in human breast cancer cell line (MDA-MB-231) and non-cancer human skin fibroblast cells (HSF-1184). The activities and characteristics varied depending on the different parts of S. ferruginea, solvent polarity, and concentrations of extracts. The stem methanol extract showed the highest amount of both phenolic (273.51 ± 4.84 mg gallic acid/g extract) and flavonoid contents (163.41 ± 4.62 mg catechin/g extract) and strong DPPH• radical scavenging (IC50 = 27.81 μg/mL) and metal chelation activity (IC50 = 80.20 μg/mL). The stem aqueous extract showed the highest ABTS•+ scavenging ability. The stem methanol and aqueous extracts exhibited dose-dependent cytotoxic activity against MDA-MB-231 cells with IC50 of 19.27 and 50.35 μg/mL, respectively. Furthermore, the extracts inhibited the migration and colony formation of MDA-MB-231 cells in a concentration-dependent manner. Morphological observations revealed hallmark properties of apoptosis in treated cells. The methanol extract induced an increase in ROS generation and mitochondrial depolarization in MDA-MB-231 cells, suggesting its potent apoptotic activity. The present study demonstrated that the S. ferruginea methanol extract mediated MDA-MB-231 cell growth inhibition via induction of apoptosis which was confirmed by Western blot analysis. It may be a potential anticancer agent; however, its in vivo anticancer activity needs to be investigated. PMID:27410459

  16. Increase in Bcl2 expression of penile and prostate cells of Sprague Dawley male rats following treatment with buceng (combination of Pimpinella alpina molk with Eurycoma longifolia Jack

    Directory of Open Access Journals (Sweden)

    Taufiqurrachman Nasihun

    2015-04-01

    Full Text Available Background: Treatment with buceng combination of Eurycoma longifolia Jack and Pimpinella alpine Molk has been proven to increase testosterone level, decrease apoptosis and caspase3 expression. Bcl2 is an antiapoptotic protein found in cytoplasm which inhibits cells apoptosis. This study was aimed to investigate the effect of buceng on Bcl2 expression on penile and prostate tissues of the rats. Methods: In this experimental study, 24 male Sprague Dawley rats of 90 days old, weighing ± 300 grams, were randomly assigned into four groups. Group A, normal rats. Group B, castrated rats and treated with buceng 100 mg/day, per oral (Cast-Bcg; Group C, castrated rats and treated with 2 ml of water as placebo against buceng (Cast-Plac. Group D, castrated rats, treated with mesterolone 6.75 mg/day, per oral, as exogenous testosterone (Cast-Mest. All rats were treated for 30 days. Manova test was used to analyze the different expression of Bcl2 among groups with significance level at p ≤ 0.05. Results: Castration was associated with significant decrease of Bcl2 expression in the penile and prostate tissues (53.0 and 50.9%, respectively compared to normal rats (82.6 and 84.2%, respectively, p < 0.001. Treatment with mesterolone reversed Bcl2 expression (77.1 and 78.1% to a near normal level. The same level of Bcl2 expression was also observed with buceng treatment (73.8 and 78.2%.Conclusion: The treatment with buceng could enhance Bcl2 expression in penile and prostate tissues, comparable to normal rats and mesterolone treated rats.

  17. Molecular Docking and Molecular Dynamics Simulations of Inhibitors Binding to Jack Bean Urease%洋刀豆脲酶与抑制剂相互作用的分子对接和分子动力学研究

    Institute of Scientific and Technical Information of China (English)

    吕婧; 蒋勇军; 俞庆森; 邹建卫

    2011-01-01

    通过洋刀豆脲酶抑制剂的筛选实验得到具有较好抑制活性的化合物2-乙酰基-γ-丁内酯(COM),其半数抑制浓度在微摩尔浓度级别(IC50=375μmol·L-l).在此基础上,使用分子对接和分子动力学(MD)模拟的方法研究洋刀豆脲酶与抑制剂乙酰氧肟酸(AHA)及活性化合物COM之间的相互作用.用Gold3.0程序将两个小分子与洋刀豆脲酶的晶体结构进行对接,对接得到的复合物模型使用Amber程序进行MD模拟研究.模拟过程中,脲酶结构中的双核镍离子活性中心选用non-bonded模型.研究结果显示:AHA与洋刀豆脲酶结合时,Ni(1)和Ni(2)均为五配位;COM与洋刀豆脲酶结合时Ni(1)为五配位,Ni(2)为六配位的结合模型更加合理.这些研究为了解洋刀豆脲酶与抑制剂之间的相互作用提供了重要的参考信息.%From the bioassay tests,compound 2-acetyl-γ-hydroxybutyric(COM) showed good inhibitory activity against Jack bean urease with IC50=375 μmol·L-l.Then the molecular docking and molecular dy-namics(MD) simulations were performed to investigate the interactions between Jack bean urease and in-hibitor aceto hydroxamic acid(AHA) and COM.GOLD3.0 program was used to perform the docking,and Amber was used to model the docking complex structures of inhibitor-Jack bean urease.Nonbonded model used for the nickel ions provided good reproduction of the active site of Jack bean urease during the MD simulations.The results confirmed that both nickel ions were pentacoordinated in AHA-Jack bean urease model.The binding model of the COM-Jack bean urease showed that Ni(1) was pentacoordinated while Ni(2) was hexacoordinated.The models provided useful information for understanding of the interactions between inhibitors and the protein.

  18. Field Test of Qiantangjiang Embankment Deformation Monitoring Caused by Pipe-jacking Construction%顶管穿越钱塘江大堤变形监测现场试验研究

    Institute of Scientific and Technical Information of China (English)

    吴军君; 张开伟; 刘振伟

    2011-01-01

    Taking the Qiantangjiang embankment deformation monitoring caused by sewage pipe-jacking construction of Tongxiang in Zhejiang province for an example, according to the field monitoring and test results, the influence of pipe-jacking during and after construction on soil disturbance deformation around the dike is analyzed. The methods of O'Reilly and Loganathan are proposed to calculate slot width coefficient of land subsidence during pipe-jacking construction. Then it is substituted to Peck formula for fitting horizontal ground settlement curvet which has good fitting degree. Finally, it points out that the settlement calculation after construction must be selected zero point rationally and the hyperbolic fitting is more applicable. The results show that the proposed method is effective, which has guided meaning for safety e-valuation of embankment.%以浙江省桐乡污水顶管穿越钱塘江大堤变形监测项目为例,根据现场监测与试验结果,分析了顶管施工期间和工后对大堤周围土体扰动变形的影响,提出项管施工期间分别依据O' Reilly和Loganathan法推算地面沉降槽宽度系数代入Peck公式拟合地面横向沉降曲线,拟合度较好,指出工后沉降推算需合理选取零点,采用双曲线拟合法更适用.结果表明,该方法行之有效,对堤防安全评价有指导意义.

  19. 行星刀盘方顶管全断面切削混凝土试验研究%Experimental Study on Full-Face Concrete Cutting by a Rectangular Pipe-jacking Machine with a Planetary Cutterhead

    Institute of Scientific and Technical Information of China (English)

    魏林春

    2014-01-01

    The mining method with soil reinforcement is now mainly adopted in the construction of cross passages of shield tunnels, which is characterized by high risk and complex working conditions. In this paper, based on the adoption of a specially developed rectangular pipe-jacking machine with a planetary cutterhead, full-face cutting tests are carried out on concrete samples of different strength grades. Research on cutting-tool selection and layout, as well as the machinability of pipe-jacking with a planetary cutterhead, are undertaken, providing a technical reference for future cross-passage construction in shield tunnels adopting pipe-jacking to cut concrete composite segments, thereby refraining from exposing the reinforced soil mass due to segment removal, and greatly reducing the construction risk.%目前盾构隧道联络通道主要采用土体加固暗挖法进行施工,但在复杂工况环境下仍存在极大施工风险。文章通过采用专门研制的行星刀盘方顶管对不同强度等级的混凝土试块进行全断面切削试验,对顶管刀具选型及布置、行星刀盘顶管切削性能等进行了研究,可为今后采用顶管法直接切削混凝土复合管片的盾构隧道联络通道的施工提供相应的技术储备,避免移除管片暴露加固土体,以大大降低盾构隧道联络通道施工风险。

  20. The Remainder Way to Form the Cultural Identity in Translation:A Case Study of Ezra Pound’s Ideogrammic and Juxtaposing Pattern in Translating Chinese Classical Poetry%翻译塑造文化身份的“剩余”途径--以庞德翻译中国古诗的析字拆词和意象并置法为例

    Institute of Scientific and Technical Information of China (English)

    刘佳全

    2015-01-01

    文章旨在以让-雅克•勒塞克勒和劳伦斯•韦努蒂的“剩余”理论为指导,研究庞德翻译中国古诗所采用的析字拆词和意象并置的翻译方法,进而获得中国古典文学输出的某种文化启示。庞德在翻译中国古诗中采用了析字拆词和意象并置的翻译模式,一方面造成庞德翻译中过度自由的增减和主观阐释,另一方面却呈现出对中国古诗的文本性、文化性和历史性的尊重。这种翻译模式符合韦努蒂对异化翻译的定义,却违背了文学多元系统的干预法则。勒塞克勒和韦努蒂所提出的“剩余”理论融合了解构主义、社会学和阐释学的特点,为这种翻译模式提供了四个不同层次的诠释,进而在中英不对等的语言权力关系中,为中诗英译的文化议程和身份塑造提供了新的视角和方法论。%This article aims to investigate Ezra Pound’s ideogrammic and juxtaposing pattern in translating Chinese classical poetry for some cultural enlightenment in exporting Chinese classical literature in the light of the Remainder theory created by Jean-Jacques Lecercle and developed by Laurence Venuti. Pound’s ideogrammic and juxtaposing pattern in trans-lating Chinese classical poetry gave rise to excessive freedom of amplification and reduction, and subjectivity in interpretation while it showed his respect to the textuality, culturality and history of Chinese classical poetry. This pattern is consistent with Venuti’s definition of foreignizing translation but inconsistent with the law of interference according to the polysystem theory. Combining the elements of deconstruction, sociology and hermeneutics, Lecercle and Venuti’s Remainder theory provides a new interpretation for Pound’s translation pattern in four hierarchies and thus a new perspective and methodology for the cul-tural agenda and identity in translating Chinese classical poetry into English amid the imbalanced

  1. X-ray absorption spectroscopic evidence for binding of the competitive inhibitor 2-mercaptoethanol to the nickel sites of Jack bean urease. A new Ni-Ni interaction in the inhibited enzyme

    Energy Technology Data Exchange (ETDEWEB)

    Clark, P.A.; Wilcox, D.E. (Dartmouth College, Hanover, NH (USA)); Scott, R.A. (Univ. of Georgia, Athens (USA))

    1990-02-21

    The enzyme Jack bean urease has been identified as the first nickel-containing metalloenzyme to catalyze the hydrolysis of urea to carbon dioxide and ammonia. Competitive inhibitors such as 2-mercaptoethanol (2-ME) have been shown to dramatically affect the ground-state electronic properties of the urease Ni(II) ions. Results of preliminary structural investigations using x-ray absorption spectroscopy of the nickel salts of urease in its native and 2-ME bound forms are presented. The binding of 2-ME to Ni(II) through the thiolate sulfur is confirmed by the results of this study. 17 refs., 2 figs., 2 tabs.

  2. 自升式海上风机安装平台桩腿升降系统设计%Design of Leg Jacking for Offshore Wind Turbine Installation Platform

    Institute of Scientific and Technical Information of China (English)

    唐蔚平; 裘继承; 薛雷刚

    2014-01-01

    本文主要介绍自升式平台桩腿升降系统形式,分析海上风机安装平台的特点,优先选择和设计一种适用风电安装平台使用的升降系统。%This paper introduces the design of leg jacking for offshore wind turbine installation platform by analyzing the characteristic of offshore wind power installation platform.

  3. 基于AutoCAD的千斤顶装配图绘图方法的研究%Study of Drawing Method of Jack Assembly Drawing Based on AutoCAD

    Institute of Scientific and Technical Information of China (English)

    张艳华

    2015-01-01

    In order to introduce the drawing method of the assembly drawing in AutoCAD, this article takes jack as an example to describe the drawing method of the layer and layout space,and it has good practicability.%介绍AutoCAD中装配图的绘制方法,以千斤顶为例讲述了采用图层和布局空间的绘图方法,具备很好的实用性。

  4. 滨海软土地区临近运营高铁框构桥顶进施工技术%Jacking Construction Technology of the Frame Bridge over High Speed Railway in Costal Soft Soil Areas

    Institute of Scientific and Technical Information of China (English)

    李书强

    2014-01-01

    框构桥顶进施工工艺要求的顶进降水和开挖土体卸载势必造成地表沉降。而高铁对沉降要求极高,因此临近运营高铁顶进施工与保证高铁的运营安全相互制约。结合天津武清翠亨路临近高铁顶进铁路立交桥工程,按照顶进过程分阶段分析,采取注双液浆预加固路基、调整开挖土方顺序,同时对止水帷幕采用观测井、回灌井等监控措施,以及在防“扎头”、防偏位、防土体坍塌、后补底板和后补刃脚施工上进行创新,保证京津城际的安全运营,为以后类似工程提供了参考依据。%The jacking construction of the frame bridge which needs dewatering and evacuation usually cause ground subsidence, but the ground subsidence of high speed railway is very demanding and there is a mutual restriction between its jacking construction and safe operation. In the jacking construction of the frame bridge overpass on Cui Heng road in Wuqing, Tianjin, by analyzing the different jacking stages, some measures like consolidating the road bed with double injection, adjusting the order of evacuation Meanwhile, we used observation well and inverted well to monitor the water-stop curtain, and made innovation in displacement prevention, soil collapse prevention, bottom board and cutting edge construction, which ensured the safe operation of the high speed railway between Beijing and Tianjin, and also would provide reference for similar projects.

  5. Review on a Traditional Herbal Medicine, Eurycoma longifolia Jack (Tongkat Ali): Its Traditional Uses, Chemistry, Evidence-Based Pharmacology and Toxicology.

    Science.gov (United States)

    Rehman, Shaheed Ur; Choe, Kevin; Yoo, Hye Hyun

    2016-03-10

    Eurycoma longifolia Jack (known as tongkat ali), a popular traditional herbal medicine, is a flowering plant of the family Simaroubaceae, native to Indonesia, Malaysia, Vietnam and also Cambodia, Myanmar, Laos and Thailand. E. longifolia, is one of the well-known folk medicines for aphrodisiac effects as well as intermittent fever (malaria) in Asia. Decoctions of E. longifolia leaves are used for washing itches, while its fruits are used in curing dysentery. Its bark is mostly used as a vermifuge, while the taproots are used to treat high blood pressure, and the root bark is used for the treatment of diarrhea and fever. Mostly, the roots extract of E. longifolia are used as folk medicine for sexual dysfunction, aging, malaria, cancer, diabetes, anxiety, aches, constipation, exercise recovery, fever, increased energy, increased strength, leukemia, osteoporosis, stress, syphilis and glandular swelling. The roots are also used as an aphrodisiac, antibiotic, appetite stimulant and health supplement. The plant is reported to be rich in various classes of bioactive compounds such as quassinoids, canthin-6-one alkaloids, β-carboline alkaloids, triterpene tirucallane type, squalene derivatives and biphenyl neolignan, eurycolactone, laurycolactone, and eurycomalactone, and bioactive steroids. Among these phytoconstituents, quassinoids account for a major portion of the E. longifolia root phytochemicals. An acute toxicity study has found that the oral Lethal Dose 50 (LD50) of the alcoholic extract of E. longifolia in mice is between 1500-2000 mg/kg, while the oral LD50 of the aqueous extract form is more than 3000 mg/kg. Liver and renal function tests showed no adverse changes at normal daily dose and chronic use of E. longifolia. Based on established literature on health benefits of E. longifolia, it is important to focus attention on its more active constituents and the constituents' identification, determination, further development and most importantly, the

  6. Review on a Traditional Herbal Medicine, Eurycoma longifolia Jack (Tongkat Ali: Its Traditional Uses, Chemistry, Evidence-Based Pharmacology and Toxicology

    Directory of Open Access Journals (Sweden)

    Shaheed Ur Rehman

    2016-03-01

    Full Text Available Eurycoma longifolia Jack (known as tongkat ali, a popular traditional herbal medicine, is a flowering plant of the family Simaroubaceae, native to Indonesia, Malaysia, Vietnam and also Cambodia, Myanmar, Laos and Thailand. E. longifolia, is one of the well-known folk medicines for aphrodisiac effects as well as intermittent fever (malaria in Asia. Decoctions of E. longifolia leaves are used for washing itches, while its fruits are used in curing dysentery. Its bark is mostly used as a vermifuge, while the taproots are used to treat high blood pressure, and the root bark is used for the treatment of diarrhea and fever. Mostly, the roots extract of E. longifolia are used as folk medicine for sexual dysfunction, aging, malaria, cancer, diabetes, anxiety, aches, constipation, exercise recovery, fever, increased energy, increased strength, leukemia, osteoporosis, stress, syphilis and glandular swelling. The roots are also used as an aphrodisiac, antibiotic, appetite stimulant and health supplement. The plant is reported to be rich in various classes of bioactive compounds such as quassinoids, canthin-6-one alkaloids, β-carboline alkaloids, triterpene tirucallane type, squalene derivatives and biphenyl neolignan, eurycolactone, laurycolactone, and eurycomalactone, and bioactive steroids. Among these phytoconstituents, quassinoids account for a major portion of the E. longifolia root phytochemicals. An acute toxicity study has found that the oral Lethal Dose 50 (LD50 of the alcoholic extract of E. longifolia in mice is between 1500–2000 mg/kg, while the oral LD50 of the aqueous extract form is more than 3000 mg/kg. Liver and renal function tests showed no adverse changes at normal daily dose and chronic use of E. longifolia. Based on established literature on health benefits of E. longifolia, it is important to focus attention on its more active constituents and the constituents’ identification, determination, further development and most

  7. RESEARCH ON AUTOMATIC MONITORING TECHNIQUE OF PIPE REPLACED BY BOX CULVERT JACKING PROCESS%箱涵顶进置换管幕顶推过程自动测量技术研究

    Institute of Scientific and Technical Information of China (English)

    潘国荣; 宋蕴璞; 李怀锋; 张鹏

    2012-01-01

    结合上海金山既有铁路下顶进公路箱涵工程,介绍以自动全站仪为主的智能导向系统的原理及关键技术.实用表明,该系统在实际施工中具有可靠性强、系统运行稳定、测量精度高的特点,可以在恶劣的施工环境中正常运行.%Automatic real - time guidance measurement is the key to modern construction measurement. Nowa-days, in China the new underground 3D traffic engineering method of pipe replaced by box culvert jacking is used, but the manual measurement can not meet the requirement of real-time monitoring. So a set of Total Station-based intelligent automatic guidance system has been developed thus could achieve the measurement automatically and im-prove work efficiency greatly. The principle and key technology of this intelligent guidance system is introduced. In the same time, combined with successful application of culvert jacking highway in the existing railway project in Shanghai Jinshan, this system proved practical and excellent with higher reliability and accuracy.

  8. 给水管道顶管工程岩土勘察及其施工工艺分析评价%Analysis and Evaluation of Water Supply Pipe Jacking Engineering Geotechnical Investigation and Construction Process

    Institute of Scientific and Technical Information of China (English)

    李志国

    2013-01-01

    本文介绍了给水管道顶管工程的相关特点和要素,并以相关的工程案例为基础,着重分析了顶管工程的应用和作用;同时,研究施工现场的岩土性质和地质勘查工作的应用和作用,以此评价给水管道工程是否稳定、符合工程要求。%This paper introduces the characteristics and elem-ents of water supply pipeline pipe jacking engineering, and ta-king related engineering case as the foundation, emphatical y analyzes the application and function of pipe jacking enginee-ring;at the same time, studies the construction site of the geo-technical properties and geological prospecting application and function of work, so as to evaluate the pipeline of water supply engineering is stable or not, whether it meets the engineering requirements.

  9. The Projection of Jack London' Self-split on Martin Eden%杰克·伦敦的分裂自我在马丁·伊登上的投射

    Institute of Scientific and Technical Information of China (English)

    骆谋贝; 林玉鹏

    2012-01-01

    Martin Eden is Jack London's autobiographic novel.Jack London is a legendary figure who has special experience.His self-split includes the conflict of inferiority complex and narcissism,the enforcement of Oedipus complex caused by the revelation of his identity as a bastard,and the split of the mind under the influence of different philosophical views.All these features are embodied in Martin Eden.%《马丁·伊登》是杰克.伦敦的自传性小说。杰克·伦敦是一个有着特殊经历的传奇性人物。他的分裂自我主要体现在自卑情结和自恋情结的冲突,由于私生子的身份而加深了的恋母情结,因为多种哲学观念的影响而导致的思想分裂这三个方面。这些特征在马丁·伊登身上均有所体现。

  10. Research on jacking pressing load method in thermal-mechanical testing for structures of projectiles and rockets%弹(箭)结构热强度试验顶压式加载方法研究

    Institute of Scientific and Technical Information of China (English)

    张黎; 马星博; 刘永清; 张静; 王成亮

    2016-01-01

    The present work is devoted to study the achievement strategy and method of jacking pressing loading in thermal-mechanical testing for structures of projectiles and rockets. The implementation of loading, the optimization of control, and the compiling of script program for safety are accomplished. By simulating the mechanical-thermal coupled loading flight environment on the ground, we design and conduct the cascade jacking pressing loading and the multi-point loading mechanical-thermal combined tests, and obtain safe and steady loading history.%通过研究分析弹(箭)结构热强度力热联合试验顶压式加载的实现策略及方法,完成了加载方法的实施、控制策略的优化,安全保护脚本程序的编制。通过在地面模拟力热载荷耦合的飞行环境,设计并进行了级联顶压式力热联合加载、多点力热联合加载的复合试验,获得了安全稳定的力热控制全程加载。

  11. 近接小半径曲线顶管施工扰动数值研究%Numerical investigation on construction disturbance of close pipe-jacking with short-radius curve

    Institute of Scientific and Technical Information of China (English)

    魏龙海; 程勇; 陈炜韬; 路军富

    2012-01-01

    During the construction process of the close-pipe jacking with short-radius curve,the problem of the construction disturbance must be paid attention to. The GONGBEI tunnel is lie in the connect-line engineering of Hong Kong-Zhuhai-Macau Bridge, this tunnel's sector is very big (about 328 m2) and the geological conditions is very complex, will builded by long-pipe roof pre-support method. Based on the local condition,using numerical simulation,studied on the construction disturbance of close pipe jacking with short-radius curve.The results shows that: 1) With the increasing of excavation ring count,the measure points deformation is increasing gradually, and when the tunnel work face is close to the monitor section,the ground uplift is more obvious;2) When the later pipe-jacking begin to tunneling,the soil above the forgoing pipe is sinking,but the soil above the later pipe is uplift,with the later pipe-jacking tunneling,the max-uplift of measure points is right avertence.and the displacement on the later pipe is bigger than the forgoing, when the later pipe-jacking come through the measure section, the soil on the forgoing and later pipe has some submergence; 3) When the forgoing pipe-jacking construction was completed,the ejection force was canceled,and then the soil has some springback,so the effect of resistance by the later pipe-jacking was reduced,and the influence to forgoing pipe is not obvious by the later.%近接小半径曲线顶管工程中,顶管之间的相互扰动以及顶管施工对周围环境的影响等成为施工过程中必须关注的问题.港珠澳珠海侧接线工程拱北隧道开挖断面大(约328 m2),地质条件复杂,设计拟在隧道周边进行超前大顶管预支护.以该工程为基础,利用数值方法,对近接小半径曲线顶管的施工过程进行了数值模拟研究.研究结果表明:1)随着掘进环数的增加,各监测点的地层隆起量逐渐增大,且顶管掌子面距离监测断面越近,

  12. 带橡胶缓冲垫的出弹装置碰撞有限元分析%Collision finite element analysis of the jacking shells device with rubber cushion

    Institute of Scientific and Technical Information of China (English)

    李少远; 姜贵林; 王洪光; 王茂林; 叶小红

    2014-01-01

    There exists instantaneous collision problem between the rigid mandrel and shells in the rack and pinion jacking shells device. To reduce the collision force, the rubber buffer is added to the end of the jack. Based on the Mooney-Rivlin model, the constitutive model of rubber cushion is established, and the numerical simulation of the collision characteristics between jacking shells device and shells is researched with ANSYS/Workbench. The analysis results show that in the collision process, the maximum stress of the shells is 1.238 7 MPa, far less than the yield strength of the enclosure material of the shells;the tooth contact stress safety factors of rack and pinion are 3.77 and 3.81, respectively, and the tooth root contact stress safety factors are 4.03 and 3.53, respectively, reaching the mini-mum safety factor in a higher reliability requirement.%齿轮齿条式出弹装置刚性顶杆与炮弹之间存在瞬时碰撞问题.为减小碰撞力,在顶杆端部增加橡胶缓冲垫.采用Mooney-Rivlin 模型建立了橡胶缓冲垫的本构模型,并用有限元ANSYS/Workbench软件对带橡胶缓冲垫的出弹装置和炮弹的接触碰撞特性进行数值模拟研究.分析结果表明:带橡胶缓冲垫的顶杆与炮弹的碰撞过程中,炮弹所受的最大应力为1.2387 MPa,远小于炮弹外壳材料的屈服强度;齿轮和齿条的齿面接触应力安全系数分别为3.77和3.81;齿根接触应力安全系数分别为4.03和3.53,均达到较高可靠度时最小安全系数的要求.

  13. Design and construction of anchor jacked piles under no reaction force conditions%无反力条件下锚杆静压桩的设计与施工

    Institute of Scientific and Technical Information of China (English)

    乔国华; 周森

    2012-01-01

    The anchor jacked piles are the fully-developed underpinning technique for reinforced foundations,which are specially effect in narrow spaces,but they are confined to the reaction forces and can not be pressed in if they are not supported from the reinforced foundations.The uneven settlement reinforcement of the dormitory complexes of certain university in Guangdong province is taken as an example to introduce the construction process and design of anchor jacked piles under no reaction force conditions.The calculation methods and the construction parameters for the anchor jacked piles are discussed based on the working principle and mechanism of the pile penetration.The monitoring observations show that the uneven settlement of the foundation tends to be stable after the completion of the pile penetration.The techniques used in the case can be as the reference for the similar projects.%锚杆静压桩是一项成熟的基础加固托换技术,在狭小空间内更显其长,但它往往受到基础反力的局限,若没有被加固基础提供反力,就无法进行压桩施工。本文结合广东某综合性大学二级学院学生宿舍楼不均匀沉降加固实例,对锚杆静压桩的工作原理及沉桩机理进行了分析,探讨了锚杆静压桩设计参数的计算和取值原则,详细介绍了无反力条件下锚杆静压桩的设计与施工技术。沉降观测结果表明,加固方案对控制基础不均匀沉降起到了良好作用,为类似工程问题提供了参考经验。

  14. On the Design of a Reinforced Concrete Pipe for a Heat Supply Tunnel Constructed by Pipe Jacking%顶管法热力隧道钢筋混凝土管设计研究

    Institute of Scientific and Technical Information of China (English)

    董淑棉

    2013-01-01

    Mechanical pipe jacking construction technology is characterized by many advantages,such as fast construction,high automation,safety,reliability,and less impact on surroundings; it is therefore of great importance in the construction of heat supply tunnels.During the operation phase,a heat supply tunnel will be subjected to a high environmental temperature and internal forces of constant thrust,guiding thrust,and so on.This paper analyzes the deformation and mechanical state of the mechanically jacked reinforced concrete pipe for a heat supply tunnel in different temperatures by means of field testing and theoretical calculation.The results were verified by engineering practice.Additionally,it summarizes how the design and calculation method for reinforced concrete pipes are applicable to heat supply engineering.Finally,it concludes that the calculation results for the structural design of the reinforced concrete pipe in a jacked heat supply tunnel are similar to the test results with more safety redundancy,provided that a reduction method for the concrete strength and elastic modulus is used.%机械顶管施工技术具有施工速度快、自动化程度高、安全可靠、对周围环境影响小等优点,将顶管技术用于热力隧道施工中,具有重要意义.热力隧道在运行过程中,存在较高的环境温度,有固定推力、导向推力等内作用力.文章通过现场试验和理论计算,研究分析了热力机械钢筋混凝土顶管在不同温度工况下的变形和力学状态,并通过工程实践进行了验证;总结出了适用于热力工程的钢筋混凝土管的设计计算方法.分析结果表明,采取混凝土强度值及弹性模量折减的方法进行顶管法热力隧道钢筋混凝土管的结构设计,其计算与试验结果较为接近,更偏于安全.

  15. Chemical and physical oceanographic profile data collected from CTD casts aboard the JACK FITZ in the Gulf of Mexico from 2010-05-22 to 2010-05-31 in response to the Deepwater Horizon oil spill event (NODC Accession 0069073)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Chemical and physical oceanographic profile data were collected aboard the JACK FITZ in the Gulf of Mexico from 2010-05-22 to 2010-05-31 in response to the Deepwater...

  16. Chemical and physical oceanographic profile data collected from CTD casts aboard the JACK FITZ in the Gulf of Mexico from 2010-09-04 to 2010-09-12 in response to the Deepwater Horizon oil spill event (NODC Accession 0069075)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Chemical and physical oceanographic profile data were collected aboard the JACK FITZ in the Gulf of Mexico from 2010-09-04 to 2010-09-12 in response to the Deepwater...

  17. Chemical and physical oceanographic profile data collected from CTD casts aboard the JACK FITZ in the Gulf of Mexico from 2010-05-10 to 2010-05-13 in response to the Deepwater Horizon oil spill event (NODC Accession 0069072)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Chemical and physical oceanographic profile data were collected aboard the JACK FITZ in the Gulf of Mexico from 2010-05-10 to 2010-05-13 in response to the Deepwater...

  18. A Study on Jack London’s Romanticism in The Sea Wolf%试论《海狼》中杰克·伦敦的浪漫情怀

    Institute of Scientific and Technical Information of China (English)

    梁萍

    2015-01-01

    主要从浪漫主义角度来分析杰克·伦敦在《海狼》中所流露的热爱自然、推崇个人英雄主义和追求真爱的浪漫主义情结,展现他独树一帜的浪漫情怀。%The Sea Wolf is one of the full-length novels written by Jack London,an American writer.Until now,many researches have been made on it in the aspects of his naturalistic view,ecological viewpoint and complicated philosophical thoughts.However,romanticism in his works has been seldom studied.From the romantic perspective,this article aims to show his unique romanticism by revealing his love for nature,admiration of individualistic heroism and pursuit of true love, which are embodied in The Sea Wolf.

  19. 综合物探方法在顶管路径障碍物勘探中的应用%Application of Integrated Geophysical Exploration Methods in Exploration of Obstacles in Pipe Jacking Path

    Institute of Scientific and Technical Information of China (English)

    詹斌; 廖智; 朱能发

    2012-01-01

      With the rapid development and ongoing conducting of urban infrastructure, underground pipeline projects are getting more and more. In order to guarantee the safety and protect the original underground pipes in the process of pipe jacking construction, it is necessary to give a close exploration on the underground obstacles in the direction of pipe jacking construction path. Been widely used in solving underground construction problems, geophysical exploration technology uses advanced geophysical exploration equipments to ascertain the distribution of underground physical field, makes a comparison with the physical field under homogeneous conditions, and lastly finds out the differences to research on the relation with the exploration object. The object exploration methods of geological radar and seismic image have many advantages including time saving, high efficiency, reducing quantity of exploration work, lowering exploration cost, and improving geology exploration quality, which have been approved by many practical engineering cases. Through a practical case of obstacles exploration in pipe jacking construction path in Tianjin, this paper gives an analysis of the efficiency of methods of geological radar and seismic image in the application of obstacles exploration in the direction of pipe jacking construction path.%  随着国家的飞速发展和城市基础建设的不断进行,地下管道埋设工程越来越多,为保证顶管施工过程中的安全以及保护原场地地下管网,施工前有必要对顶管施工路径方向地下障碍物的走向位置和埋设深度进行详细勘探。物探技术利用先进的物探仪器来摄取地下物理场的分布并与均质条件下的物理场相比较,找出差异的部分来研究与勘探对象之间的关系,被广泛应用于解决地下工程问题。地质雷达与地震映像物探方法由于其具有省时、高效、能减少勘探工作量,降低勘探成本,提高

  20. « Les langues de l’errance », une approche liminale du monde chez Jack Kerouac, Ernesto Sábato, J. M. G. Le Clézio, Kenneth White

    OpenAIRE

    Deshoulières, Anne

    2014-01-01

    Pour des écrivains situés à la croisée de plusieurs cultures tels que Jack Kerouac, J. M. G. Le Clézio, Kenneth White, Ernesto Sábato, l’errance est une quête active qui permet d’échapper à l’enfermement physique, géographique, culturel, social. La place des langues est donc cruciale dans cette pratique du monde, chargée de mettre en mouvement l’espace en favorisant les échanges. Et dans cette perspective, l’apprentissage des langues est analogue à une expérience féconde, une nouvelle approch...

  1. « Les langues de l’errance », une approche liminale du monde chez Jack Kerouac, Ernesto Sábato, J. M. G. Le Clézio, Kenneth White

    OpenAIRE

    2014-01-01

    Pour des écrivains situés à la croisée de plusieurs cultures tels que Jack Kerouac, J. M. G. Le Clézio, Kenneth White, Ernesto Sábato, l’errance est une quête active qui permet d’échapper à l’enfermement physique, géographique, culturel, social. La place des langues est donc cruciale dans cette pratique du monde, chargée de mettre en mouvement l’espace en favorisant les échanges. Et dans cette perspective, l’apprentissage des langues est analogue à une expérience féconde, une nouvelle approch...

  2. 某型飞机前起落架顶起装置设计和实现%Design and Implementation of Nose Landing Gear Jack-up Equipment of an Aircraft

    Institute of Scientific and Technical Information of China (English)

    顾星

    2014-01-01

    The article introduces an aircraft nose landing gear jack-up equipment which is used for simulating an aircraft's nose landing gear swerving test. The main scheme is introduced and the equipment is driven by air. The jack-up actuator is designed as body with three supports and road wheels, this kind of design can not only provide the enough strength and stiffness but also be moved easily. The electrical control section controls the magnetic exchange valve to supply air for the double-acting cylinder, this can achieve the actuator up and down. The equipment is sutably designed with not too much structures and it can be easily maintained, operated and moved, it also has breakdown protection, limit protection and urgency outage protection.%该文介绍了为配合模拟某型飞机的前轮转弯试验设计的前起落架顶起装置,给出了其总体方案。装置采用气源驱动,顶起执行机构采用三角支撑架体并配有行走轮,保证机构强度和刚度的同时又便于移动,电气控制部分控制电磁换向阀向双作用气缸供气,实现顶起机构的顶起和放下。整个装置结构紧凑、布局合理、维护简单、操作方便、移动灵活,并有故障保护、限位保护和紧急断电保护功能。

  3. The Rhetoric of Inferiority of African Slaves in John Fawcett’s Obi; or, Three-Fingered Jack (1800 Re-evaluated in Charlie Haffner’s Amistad Kata-Kata (1987

    Directory of Open Access Journals (Sweden)

    Ulrich Pallua

    2014-02-01

    Full Text Available John Fawcett’s Obi; or, Three-Finger’d Jack (1800 draws a distorted picture of the life of slaves in Jamaica. This paper investigates the ambivalence in this distortion as Fawcett creates two kinds of slaves by pitting them against each other: the loyal and obedient slaves (but still inferior vs. the superstitious-ridden and rebellious slaves deeply rooted in old traditions, thus considered inferior, uneducated, immoral and dangerous. The juxtaposition of what I call ‘anglicised’ slaves instrumentalised by the coloniser and the heathen ‘savages’ that are beyond the reach of the imperial ideology enables Fawcett to substantiate the claim that Christianity successfully promotes slaves to ‘anglicised’ mimic men/women who are then able to carry out its mission: to eradicate the pagan practice of obeah, three-finger’d Jack, and all those slaves that threaten the stability of the coloniser’s superiority. Charlie Haffner’s play Amistad Kata-Kata (1987 is about the heroism of Shengbe Pieh and his fellow slaves on board the La Amistad: on their way to the colonies they revolted, were sent to prison, tried, finally freed, and taken back home after 3 years. The paper shows how Haffner repositions the ‘Amistad trope’ in the 20th century by effacing the materiality of the body of the African slaves, thus re-evaluating the corporeality of the colonised slave in the 19th -century post-abolition debate by coming to terms with the cultural trauma postindependent African collective identity has been experiencing. The re-staging of the play by the ‘Freetong Players’ in 2007/8 commemorated the bicentenary of the abolition of the Atlantic Slave Trade, a unique opportunity to direct the attention to asserting the identity of ‘Post-European’ Africa.

  4. From Keats to Kanye: Romantic Poetry and Popular Culture in the Secondary English Classroom

    Science.gov (United States)

    Bowmer, Megan E.; Curwood, Jen Scott

    2016-01-01

    This case study examined a Romanticism unit within a Year 9 English class in Sydney, Australia. It considered whether popular culture could build connections between students' lives and Romanticism, and whether the process of remixing "high" Romantic poetry with "low" popular culture could foster student engagement. Thematic…

  5. From Keats to Kanye: Romantic Poetry and Popular Culture in the Secondary English Classroom

    Science.gov (United States)

    Bowmer, Megan E.; Curwood, Jen Scott

    2016-01-01

    This case study examined a Romanticism unit within a Year 9 English class in Sydney, Australia. It considered whether popular culture could build connections between students' lives and Romanticism, and whether the process of remixing "high" Romantic poetry with "low" popular culture could foster student engagement. Thematic…

  6. Kuus kirja / John Keats ; tlk. Märt Väljataga

    Index Scriptorium Estoniae

    Keats, John

    2004-01-01

    Sisu: Benjamin Bailey'le, 22. novembril 1817 ; George ja Tom Keatsile, 21., 27. (?) detsembril 1817 ; John Taylorile, 27. veebruaril 1818 ; John Hamilton Reynoldsile, 3. mail 1818 ; Richard Woodhouse'ile, 27. oktoobril 1818 ; George ja Georgiana Keatsile, 14. veebruar-3. mai 1819. Saatesõna lk. 84

  7. Kuus kirja / John Keats ; tlk. Märt Väljataga

    Index Scriptorium Estoniae

    Keats, John

    2004-01-01

    Sisu: Benjamin Bailey'le, 22. novembril 1817 ; George ja Tom Keatsile, 21., 27. (?) detsembril 1817 ; John Taylorile, 27. veebruaril 1818 ; John Hamilton Reynoldsile, 3. mail 1818 ; Richard Woodhouse'ile, 27. oktoobril 1818 ; George ja Georgiana Keatsile, 14. veebruar-3. mai 1819. Saatesõna lk. 84

  8. 香蕉携带杰克贝尔氏粉蚧的甲酸乙酯熏蒸技术初探%Primary study on ethyl formate fumigation against Jack Beardsley mealybug on banana

    Institute of Scientific and Technical Information of China (English)

    徐文雅; 王迪; 刘涛; 李丽; 王毅; 刘长明; 王跃进

    2014-01-01

    In order to determine whether ethyl formate could be used to control Jack Beardsley mealybug (Pseudococcus jackbeardsleyi Gimpel et Miller) on banana (Musa paradisiaca), in this study under the 13℃, using a series of concentration of ethyl formate combined with 15% carbon dioxide fumigation for 2.5 h, ethyl formate fumigation were measured for each bug state jack bell's mealybug toxicity and quality of fumigated bananas . The banana had the stronger chemisorption to ethyl formate. Under the condition of 40% loading rate, the concentration of the ethyl formate after 10 minutes was only 30%. And after 2.5 hours, the ethyl formate cannot be detected. The tolerance of all insect stages to ethyl formate appeared in the order of egg > the adult > nymph. All stages of mealybug was killed completely when fumigated with ethyl formate at the dosage of 90 g/m3. In the test of the character, fumigation of ethyl formate had no significant effects on internal quality of the banana, including fruit color, firmness, soluble sugar content and total acids. These results indicated that ethyl formate was effective to kill the Jack Beardsley mealybug while its adverse effect on the quality of banana could be greatly reduced at low temperature, so control of predatory insect pests using ethyl formate is achievable.%为了明确甲酸乙酯在检疫处理香蕉(Musa paradisiaca)携带杰克贝尔氏粉蚧(Pseudococcus jackbeardsleyi Gimpel et Miller)中应用的可能,本文在13℃下,使用一系列浓度的甲酸乙酯结合15%二氧化碳对杰克贝尔氏粉蚧和海南巴西蕉(Musa paradisiaca)进行了2.5 h 熏蒸处理,并测定了甲酸乙酯熏蒸对各虫态杰克贝尔氏粉蚧的毒性及香蕉品质的影响。结果表明香蕉对甲酸乙酯有较强的吸附作用,装载率为40%的条件下,投药后10 min 的浓度仅约为投药剂量的30%,熏蒸2.5 h 后已不能检测到熏蒸空间中的甲酸乙酯。对各虫态粉蚧的毒力结果表

  9. APPLICATION OF SYNCHRONOUS JACK-UP SYSTEM IN CORRECTION AND BEARING-REPLACEMENT OF CURVED BEAM%液压同步顶升系统在弯梁纠偏及支座更换中的应用

    Institute of Scientific and Technical Information of China (English)

    戴岩; 周天华

    2015-01-01

    The curved beam bridge is widely used in modern city viaduct.Because the complexity of its space stress mechanism, diseases are often found in curved beam bridge which could harm structural safety and serviceability.For this reason, such sort of bridge should be repaired.In this paper, some repair schemes were compared via finite element analysis based on a real bridge project.It is decided that synchronous jack-up system should be used for this project.This system has many advantages, especially when it is used in curved beam bridge.It was discussed the feasibility of using the system for repairing curved bridge project, based on the analysis of synchronous jack-up system’ s construction process, construction system, correction and bearing-replacement operation process.Through the analysis of monitoring data, the usability of this system was demonstrated in this kind of engineering project.In the end, some recommendations were put forward for popularizing.%弯梁桥在城市高架建设中被广泛应用,但由于其空间受力复杂,导致桥梁出现病害,影响其安全性与适用性,需对既有病害进行修复。选定某一工程实例,通过有限元分析对弯梁的维修方案进行比选,明确采用液压同步顶升系统进行维修施工,并进一步归纳该系统的优势。在详细分析液压同步顶升系统的施工流程、施工系统、纠偏与支座更换操作流程的基础上,通过分析监控数据,论证了此系统应用于弯梁纠偏及支座更换的可行性。

  10. “狼之子”的正反想象:杰克·伦敦眼中的中国移民%The Pros and Cons of Imagination of 'the Son of Wolves':the Chinese Immigrants in the Eyes of Jack London

    Institute of Scientific and Technical Information of China (English)

    汤立媛

    2014-01-01

    Jack London created altogether six China and Chinese immigrants related works, which show his completely different views to China, uglification as well as understanding and sympathy. Although in the shadow of racism, Jack London made great contributions to the communication between Chinese and Western culture for a more rational thinking and more objective description. This paper will explore Jack London's reasons of his pros and cons of imagination toward Chinese immigrants' images from his psychological factors and the social, historical background.%杰克·伦敦一生共创作了六部有关中国和中国移民形象的作品,既有对中国丑化的一面,也有对中国理解、同情的一面。虽然摆脱不了种族主义的阴影,但其更为理性的思考与更为客观的描述使得他对中国、对中西文化之间的交流做出了巨大的贡献。本文将从杰克·伦敦自身的心理因素和所处的社会历史背景来探讨他对中国移民形象正反想象的原因。

  11. 自升式钻井平台冲桩系统技术分析及优化方案%Technical Analysis and Optimizing Solution on Leg Jetting System for Jack Up Drilling Unit

    Institute of Scientific and Technical Information of China (English)

    蔡胜利; 张福; 冯利杰; 杜渊; 赵建帮

    2012-01-01

    Considering the fact that the current Jetting System on Jack-Up Drilling Unit cannot function well in assisting Leg Pulling-out on operation site, comparison and analysis were made for several systems' different features,advantages and disadvantages. A more reasonable engineering concept was proposed,and an optimizing solution and development proposal were brought forward for future Leg Jetting System, by which the system to realize its operation purpose was enabled efficiently.%现有自升式钻井平台的冲桩系统在作业地不能很好地发挥其辅助拔桩功能.对比分析几套典型冲桩系统的结构特点及优缺点,提出冲桩系统的优化方案和发展建议,使该系统能够高效地完成其正常的作业功能.

  12. Comprehensive Application of Steel Reinforced Concrete Jacking Pipe and Sand Glass Fiber Reinforced Plastic Pipe%钢筋混凝土管顶管与夹砂玻璃钢管的综合应用

    Institute of Scientific and Technical Information of China (English)

    李之国

    2009-01-01

    该文介绍了采用DN2200钢筋混凝土管作为穿越管道进行顶管施工,然后在钢筋混凝土管内安装DNl800承插式夹砂玻璃钢管相结合的施工方法.此施工方法可有效地解决埋深较大的市政污水压力管道工程的施工技术问题.现供从事市政污水压力管道工程施工的同行参考.%The article introduces the construction of jacking pipe by using DN2200 steel reinforced concrete pipe as the crossing pipe, and the construction method of then installing DN1800 socket-and-spigot sand glass fiber reinforced plastic pipe into the steel reinforced concrete pipe. This construction method can efficiently solve the construction technical problems of the deeper embedded municipal sewage pressure pipe, which can provide the reference for the construction of the municipal sewage pressure pipe.

  13. 液压起吊千斤在液压支架组装站上的应用%Applications of Hydraulic lifting jack in hydraulic support assembly on the station

    Institute of Scientific and Technical Information of China (English)

    刘长青

    2016-01-01

    The support demolition of 15112 working face of Yangquan Coal Si Jia Zhuang company, lifting weight reached 40t, the pneumatic leading chain in the assembly station can’t meet the requirements, so the use of four hydraulic lifting jack for the entire frame lifting, is successful for the first time trial, compared to the traditional pneumatic chain lifting safety factor and the work efficiency is high , which provide strong technical support for the equipment safe and smooth demolition.%阳煤寺家庄公司15112工作面拆运支架时,起吊重量达到40t,组装站内的风动导链起吊不能满足要求,因此采用在组装站内安装4根起吊液压千斤进行整架起吊,首次试验获得成功,较以往风动导链起吊安全系数高,作业效率高,给此次设备拆除工程的安全顺利进行提供有力的技术保障。

  14. 同步控制顶升、摩阻自平衡平移连续箱梁技术研究及其应用%Study and Application on Synchronizing Control Jacking-up and Self-equation of Friction Technology for Translation of Continuous Box Girder

    Institute of Scientific and Technical Information of China (English)

    卢朋

    2015-01-01

    某客运专线一联道岔连续梁因土堆堆载产生横向偏移,在多跨连续梁桥精确复位中,对同步控制顶升、摩阻自平衡平移技术进行研究。连续箱梁对竖向不均匀位移高度敏感,桥墩与梁底之间空间有限,横向反力台座施工困难,通过对比分析、模拟计算,采用 PLC 计算机同步控制顶升、摩阻自平衡平移技术,能保证顶升过程中的同步性,并巧妙平衡了水平千斤顶横向顶推反力。通过工程实例的应用,证明技术的安全性和可行性。%Due to the load of earth piling,the lateral deviation was occured in a continuous beam of turnout with a joint in a passenger dedicated line,the study on synchronizing control jacking-up technology and self-equation of friction technology for translation in accurate restoring of multi-span continuous beam bridge was introduced.Continuous box girder was highly sensi-tive to vertical non-uniform displacement,and the gap between top of pier and bottom of beam was limited,that caused diffi-culty in construction of lateral counterforce pedestal.By the comparative analysis and simulative calculation,the result showed that synchronizing control jacking-up technology and self-equation of friction technology by adopting PLC computer for translation of continuous box girder could not only ensure the synchronism in jacking-up process,but also subtly balance the lateral jacking counterforce of horizontal jack.The safety and feasibility of technology were proven through application of the project.

  15. MAIZE AND JACK BEANS INTERCROPPING AND SUCESSION AS ALTERNATIVE FOR NO-TILL SYSTEM CONSÓRCIO E SUCESSÃO DE MILHO E FEIJÃO-DE-PORCO COMO ALTERNATIVA DE CULTIVO SOB PLANTIO DIRETO

    Directory of Open Access Journals (Sweden)

    Luiz Paulo Figueredo Benício

    2011-07-01

    Full Text Available

    The use of leguminous species under no-till system can increase the N content, decreasing the use of nitrogenous fertilizers. However, in ecosystems such as the Brazilian Savannah, the fast decomposition of their straw can result in a deficient soil cover, which can be avoided by intercropping them with a gramineous plant, such as maize. This study aimed to evaluate maize yield; macronutrients contents, with jack beans (Canavalia ensiformis as green fertilizer and intercropped under no-till system; and rates of crop residues decomposition. The experimental design was split-plot randomized blocks, with four replications, and treatments evaluated per plot were: jack beans sown in October, followed by maize, in December; jack beans sown with maize, in

  16. Estatus nutricional y crecimiento vegetativo de plantas de Vanilla planifolia Jacks afectadas por la fertilización y la composición de substrato orgánico

    Directory of Open Access Journals (Sweden)

    Adriana Isabel Osorio

    2014-12-01

    Full Text Available El cultivo de la vainilla (Vanilla planifolia Jacks es promisorio en Colombia, sin embargo, sus requerimientos nutricionales son desconocidos. En este estudio la hipótesis fue que el estado nutricional del cultivo de vainilla y su crecimiento dependen de la composición del sustrato y de la fertilización aplicada. En parcelas experimentales de 0.8 x 0.8 x 0.2 m se aplicaron cada 2 meses 10 lt adicionales de un sustrato que contenía fragmentos de madera (WC o fibra de coco (CF y hojarasca (LL en diferentes proporciones volumétricas (% (75:25, 50:50, 25:75. Se aplicaron cuatro dosis anuales de un fertilizante químico (grado 27-11-11: 0, 20, 60 y 140 g por planta. Los resultados indican que una interacción altamente significativa (P < 0.01 entre el sustrato y la fertilización sobre el crecimiento de las plantas. La longitud del tallo de las plantas de vainilla se incrementó significativamente con la dosis de fertilización de 20 g/planta solamente en los sustratos compuestos por 75% de CF o WC y 25% de LL. La presencia de CF produjo contenidos foliares de P, K, Cu, Mg y Mn significativamente más altos (P < 0.05 que aquellos obtenidos cuando WC fue utilizado en el sustrato. Por el contrario, la presencia de WC en el substrato incrementó (P < 0.05 los contenidos foliares de N y Ca con respecto a los niveles observados con CF en el sustrato de crecimiento.

  17. An official American Thoracic Society Workshop Report: presentations and discussion of the fifth Jack Pepys Workshop on Asthma in the Workplace. Comparisons between asthma in the workplace and non-work-related asthma.

    Science.gov (United States)

    Malo, Jean-Luc; Tarlo, Susan M; Sastre, Joaquin; Martin, James; Jeebhay, Mohamed F; Le Moual, Nicole; Heederik, Dick; Platts-Mills, Thomas; Blanc, Paul D; Vandenplas, Olivier; Moscato, Gianna; de Blay, Frédéric; Cartier, André

    2015-07-01

    The fifth Jack Pepys Workshop on Asthma in the Workplace focused on the similarities and differences of work-related asthma (WRA) and non-work-related asthma (non-WRA). WRA includes occupational asthma (OA) and work-exacerbated asthma (WEA). There are few biological differences in the mechanisms of sensitization to environmental and occupational allergens. Non-WRA and OA, when due to high-molecular-weight agents, are both IgE mediated; it is uncertain whether OA due to low-molecular-weight agents is also IgE mediated. Risk factors for OA include female sex, a history of upper airway symptoms, and a history of bronchial hyperresponsiveness. Atopy is a risk factor for OA due to high-molecular-weight agents, and exposure to cleaning agents is a risk factor for both OA and non-WRA. WEA is important among workers with preexisting asthma and may overlap with irritant-induced asthma, a type of OA. Induced sputum cytology can confirm airway inflammation, but specific inhalation challenge is the reference standard diagnostic test. Inhalation challenges are relatively safe, with the most severe reactions occurring with low-molecular-weight agents. Indirect health care costs account for about 50% of total asthma costs. Workers with poor asthma control (WRA or non-WRA) are less likely to be employed. Income loss is a major contributor to the indirect costs of WRA. Overall, asthma outcomes probably are worse for adult-onset than for childhood-onset asthma but better for OA than adult-onset non-WRA. Important aspects of management of OA are rapid and proper confirmation of the diagnosis and reduction of exposure to sensitizers or irritants at work and home.

  18. Research on Load Measurement Method of Marine Propulsion Shafting System Based on Hydraulic Jack Method%基于顶举法的船舶推进轴系负荷测试方法研究

    Institute of Scientific and Technical Information of China (English)

    张利军

    2014-01-01

    船舶推进轴系负荷测试是轴系安装过程和检验过程中不可缺少的环节,通过有效的检验方法,检测中间轴承以及主机的主轴承所承受的实际负荷是否在理论计算允许的范围之内。本文介绍了基于顶举法的轴承负荷测量原理、测量过程和计算方法。经过实船数据的测量计算,并与应用电阻应变片法测量数据比较和分析,说明该方法在船舶推进轴系负荷测试的可行性和经济性。%The load measurement of marine propulsion shafting system is an indispensable link in installation and inspection process. The actual bearing load of the intermediate bearings and main bearing within or within-out the allowed range of theoretical calculation is checked by using effective testing method. Based on the hydraulic jack method, the measurement principle, measuring process and calculation method are discussed. After measurement and calculation for an actual ship, the result is compared and analyzed with measuring data by strain gauge method. The results show that the method is economical and feasible in the load test of ship propulsion shafting.

  19. Harm of Chelidonium citri Grressitt to Murraya paniculata (L.) Jack Balls and Economic Damage Appraisal%橘光绿天牛对九里香绿化球的危害及其经济损失评估

    Institute of Scientific and Technical Information of China (English)

    刘有莲; 黄寿昌

    2003-01-01

    分别于2002年6月27日和8月29日调查广西生态工程职业技术学院内种植的九里香[Murrayapaniculata(L.)Jack]受橘光绿天牛(Chelidomum citri Grressitt)危害的状况并进行危害价值损失评估.结果表明,九里香绿化球受害株率90.7%,枝枯株率74.1%,有虫株率75.9%,虫口密度2.11,危害度31.5%.危害造成枝枯宽度平均为61 cm,占平均树冠周长的14.4%;枝枯平均深度为68.4cm,占平均树高50.8%.植株东向受害最多,占受害总株数30%;中部枝枯宽度占树冠周长比例最大,为22.9%;西南方向枝枯深度最深,占高度的90.9%.九里香绿化球价值损失占总价值的38.7%.学院的九里香绿化球受橘光绿天牛危害严重,需要及时有效的预防与防治.

  20. 庞德与中国古典诗歌%Ezra Pound and Chinese classic poetry

    Institute of Scientific and Technical Information of China (English)

    康连星

    2004-01-01

    中国古典诗歌对意象派诗人产生了巨大的影响.庞德不仅模仿中国古典诗歌的艺术手法,而且还将许多中国古诗译成英语,在中诗英译过程中,他进行了大胆的创新.

  1. Ezra Pound's Imagist Poetics%论庞德意象主义诗学

    Institute of Scientific and Technical Information of China (English)

    云得煜

    2004-01-01

    庞德的意象主义诗学是多元文化思想冲击下的产物.他的意象主义理论强调语言的简洁,表现的客观,形容词的少用或者不用.在庞德看来,意象诗决不是任何一种自由的、不规则的诗,它是新的韵律的创造.

  2. Ezra Pound: A Collection of Critical Essays. Twentieth Century Views Series.

    Science.gov (United States)

    Sutton, Walter, Ed.

    One of a series of works aimed at presenting contemporary critical opinion on major authors, this collection includes essays by Walter Sutton, William Butler Yeats, William Carlos Williams, T. S. Eliot, F. R. Leavis, Hugh Kenner, M. L. Rosenthal, Forrest Read, David W. Evans, W. M. Frohock, Harold H. Watts, Earl Miner, Murray Schafer, J. P.…

  3. Intertextual “tissue preserved”: a Reading of Ezra Pound’s Hugh Selwyn Mauberley

    Directory of Open Access Journals (Sweden)

    Axel NESME

    2004-06-01

    Full Text Available Recorded archives of poets reading their own works sometimes yield provocative insights into the texts they chose or were asked to recite. In the case of T.S. Eliot’s performance of The Waste Land the jarring contrast between the work’s built-in polyphony and the neutral soundscape created by Eliot’s leveling of intonational differences is symptomatic of the poem’s simultaneous “dismissal of connections between images, scenes and voices” and blurring of the “proper boundaries between things.”...

  4. Phytoremediation of lead by jack beans on a Rhodic Hapludox amended with EDTA Fitorremediação de chumbo por feijão-de-porco em um Latossolo Vermelho Distrófico tratado com EDTA

    Directory of Open Access Journals (Sweden)

    Bruno Fernando Faria Pereira

    2010-01-01

    Full Text Available A greenhouse study was conducted to evaluate the effects of ethylenediamine tetraacetic acid (EDTA addition to soils on the lead (Pb phytoextraction potential of jack beans (Canavalia ensiformis L.. In a pot experimentSoil samples (dystrophic Rhodic Hapludox were treated with six Pb rates (0, 100, 200, 350, 1,200, and 2,400 mg kg-1 soil applied as Pb(NO32 without and with EDTA application (0 and 0.5 g kg-1, respectively. Lead, Cl-, NO3-, NH4+, SO4(2-, H2PO4-, Zn2+, Cu2+, Fe3+, Al3+, Ca2+, Mg2+, K+ and DOC (dissolved organic carbon concentrations obtained in a saturation soil extract (soil:water ratio of 1:0.3 were used for Pb speciation by means of the software Visual-Minteq 2.30. Soil Pb-availability was assessed with Diethylene triamine pentaacetic acid (DTPA extraction. EDTA treated soils showed higher Pb (as PbEDTA2-, and Fe (as FeEDTA- concentrations in soil solution leading to higher uptake of these elements by the jack bean. On the other hand, it decreased the concentration of stable complexes as Pb-DOC and Fe-DOC. EDTA also induced better nutrition to plants building up the concentration of non target metals (Ca, K, Mg, Zn, Cu, Fe and Mn in shoots. Shoot dry matter yield remained constant even at the highest Pb rates after EDTA treatment. Jack bean can be considered as a potential Pb-phytoextractor. In addition, the DTPA solution was effective to assess Pb availability to the plants at all applied Pb rates.Este estudo teve como objetivo avaliar, em condições de casa de vegetação, os efeitos do ácido etilenodiamino tetraacético (EDTA no potencial fitoextrator do feijão-de-porco (Canavalia ensiformis L.. Amostras de um Latossolo Vermelho distrófico foram tratadas com seis doses de Pb (0, 100, 200, 350, 1.200 e 2.400 mg kg-1 de solo aplicadas como Pb(NO32 com e sem a aplicação de EDTA (0 e 0,5 g kg-1, respectivamente e colocadas em vasos. A concentração de Pb2+, Cl-, NO3-, NH4+, SO4(2-, H2PO4-, Zn2+, Cu2+, Fe3+, Al3+, Ca2+, Mg2

  5. Different Outcomes after Being Stolen:Depiction of Delicate Relations between the Indian Native and the White in Jack London’s Writings%被抢的不同遭际:杰克伦敦笔下印第安人与白人关系描画

    Institute of Scientific and Technical Information of China (English)

    王丽耘; 朱珺; 姜武有

    2016-01-01

    杰克伦敦研究自美国伦敦作品评论伊始至今已逾百年,新世纪该领域研究欲突破,厘清其间颇具争议的问题是一大走向。比读杰克伦敦创作早期发表的两部同题材作品«北方的奥德赛»(An Odyssey of the North ,1900)与«白人李婉»(Li -Wan ,the Fair ,1902),以梳理伦敦创作早期的种族意识表现为旨归,聚焦其笔下书写的印第安土著与淘金白人间的紧张关系,抉发出两作间的互文性及作者的创作深意。%Till now Jack London Studies has a history of more than one hundred years since the early criticism of Jack London’s literary works in America in the early twentieth century.For the breakthrough of this researching field in now new century, trying to answer separately those highly debatably questions may be one way out.This paper, by comparative and creative reading of Jack London’s two early writings An Odyssey of the North in 1 900 & Li Wan , the Fair in 1 902, which both focused on the same event i.e.girl’s being stolen away from her own people and its outG come, intends to come out London’s controversial racism in his early time.The early two stories in London’s creation can actually be interpreted as centering in the intense relations between the Indian natives and those white goldGminG ers, such intertextuality does great help in delving into London’s hidden racism while writing.

  6. 季节冻土区光伏支架螺旋桩基的冻胀数值分析研究%Numerical simulation on anti-jacking-up performance of helical piles of photovoltaic stents in seasonal frozen region

    Institute of Scientific and Technical Information of China (English)

    王腾飞; 刘建坤; 刘晓强; 尚亚龙

    2016-01-01

    利用有限元软件 COMSOL 自定义模块功能,将建立的水热力三场顺序耦合模型导入,模拟二维轴对称条件下多种螺旋桩在土体冻结过程中发生的冻拔,并设置光滑桩作对比.在冻深达到桩长全长时,全螺旋小叶片桩具有良好的抗冻拔效果(仅为光滑桩的19.5%).使用 COMSOL 内嵌热应力模块,模拟三维条件下螺旋桩抗冻拔过程,并与室内试验结果作对比.结果显示冻深只有桩长一半时,双螺旋小叶片桩明显减少桩体冻拔量.表明:通过数值分析可比选出抗冻拔的最优桩型,对于现场试验的光伏支架螺旋桩型设计提供参考.%Based on custom module of COMSOL,by introducing moisture-heat-stress sequential coupling model established,the jacking-up process of different helical piles under two-dimensional axisymmetric condition is simulated with using smooth pile for contrast.When the frost depth reaches full length of the pile,small-blade helicaled pile performs well in anti-jacking-up (19.5% of that of smooth pile).The embedded thermal stress module is used to simulate the anti-jacking-up process of helical pile under three-dimensional condition,the result of which is compared with laboratory test.The outcome shows that the jacking-up displacement of helical pile with two small blades is the least when the frost depth reaches half the length of the pile.It indicates:the optimal type is picked through numerical simulation,which can provide a reference to the design of helical pile of photo-voltaic stents in field test.

  7. Validación de un método por CLAR para la cuantificación de L-prolina en la tintura al 20 % de Murraya paniculata L. Jack

    Directory of Open Access Journals (Sweden)

    Noel Varona Torres

    Full Text Available Introducción: la búsqueda de técnicas analíticas para el control de la calidad de los medicamentos constituye un aspecto de gran interés en el campo farmacéutico, más si van dirigidas al estudio del o los marcadores químicos de las plantas medicinales, sus extractos y fitomedicamentos. Objetivo: validar un método de cromatografía líquida de alta resolución (CLAR para la determinación cuantitativa del aminoácido L-prolina como sustancia marcador en la tintura de Murraya paniculata L. Jack. Métodos: en el método por CLAR, la separación se realizó en una columna C-18 (UP5ODB-150/046, se utilizó como fase móvil una mezcla de solución buffer fosfato, pH ajustado a 2,4 y acetonitrilo (70:30 v/v, con una velocidad de flujo de 0,6 mL/min, modo isocrático, con detección ultravioleta a 440 nm. El volumen de inyección de la muestra fue de 20 µL. El método fue validado según la categoría I, siguiendo las exigencias internacionales. Resultados: la curva de calibración fue lineal en el rango de concentraciones ensayadas (30 a 375 µg/mL, se observó una buena precisión con coeficientes de variación menores del 2 %. Los valores de recobrado estuvieron dentro de los límites establecidos para los métodos cromatográficos (98-102 %. Se demostró la especificidad del método, al no presentarse interferencias de picos adicionales en la zona de elusión del compuesto de interés (L-prolina. Conclusiones: el método analítico por CLAR, validado para la cuantificación del aminoácido L-prolina en la tintura de M. paniculata, demostró ser lineal, preciso, exacto y específico bajo las condiciones de estudio.

  8. Construction Technology Research Municipal Water Supply and Drainage Pipe Jacking Construction of Long-distance%市政给排水工程施工中长距离顶管施工技术研究

    Institute of Scientific and Technical Information of China (English)

    陈琳

    2014-01-01

    With the acceleration of urbanization process in China, the municipal water supply and drainage projects in urban drainage systems are also playing an increasingly important role. Municipal water supply and drainage works include three parts water, sewage and recycled water, are related to people’s daily drinking water situation. Currently, science and technology has penetrated into all walks of life among and plays an important role. Modern municipal water supply and drainage construction also affected science and technology, after the introduction of advanced technology and equipment, modern municipal water supply and drainage construction largely contributed to the development of society, for the people’s daily life has made a great contribution. Analysis and discussion of the municipal water supply and drainage construction in the long distance pipe jacking technology, hoping to play a guiding role in the theory of development for municipal drainage works.%随着我国城市化进程的不断加快,市政给排水工作在城市排水系统工程中也发挥着越来越重要的作用。市政给排水工程包括供水、排水和循环水三个部分,都关系到市民的日常饮水情况。目前,科学技术已经渗透到各行各业当中,并发挥着重要的作用。现代市政给排水施工也受到了科学技术的影响,在引入了先进的技术和设备之后,现代市政给排水施工在很大程度上促进了社会的发展,为人们的日常生活作出了巨大贡献。分析和探讨了市政给排水施工中的长距离顶管施工技术,希望可以为市政给排水工程的发展起到一定的理论指导作用。

  9. Analysis of application effect of ground penetrating radar in detection of voids around underground jacked pipes%探地雷达在地下顶管脱空检测中的应用效果分析

    Institute of Scientific and Technical Information of China (English)

    杨天春; 许德根; 王齐仁; 张正发

    2016-01-01

    为了对顶管周围的脱空和密实情况进行探测,结合工程实例,采用探地雷达对水泥顶管和钢制顶管开展实践探测工作和试验性探测研究;同时,从理论上建立了水泥顶管和钢管顶管的脱空模型,开展探地雷达二维有限单元法正演模拟。研究结果表明:探地雷达对水泥顶管周围的脱空情况进行探测时,能取得很好的效果;探地雷达对钢制顶管周围的脱空情况进行探测时,由于雷达天线与管壁之间的多次反射信号强烈,对脱空的探测效果很差。因此,探地雷达对于水泥制的顶管脱空检测是可行的,而对于钢制顶管的脱空检测需要研究新的无损检测方法、研制新的设备,以便取得好的应用效果。%In order to detect the voids and compactness around jacked pipes, a field survey and experiments were carried out to detect the voids around cement and steel pipes in an engineering case with a ground penetrating radar (GPR). A theoretical model for simulating the voids around the cement and steel pipes was established, and forward modeling of the GPR was conducted with the two⁃dimensional finite element method. The results show that the GPR is effective in detecting the voids around the cement pipes. However, it is not effective in detecting the voids around the steel pipes, because the multiply reflected signals between the radar antenna and pipe wall are strong. It is determined that it is feasible to use GPR to detect the voids around cement pipes. Meanwhile, for the detection of voids around cement pipes, new nondestructive examination methods and new types of equipment have to be developed in order to obtain better application effects.

  10. Cardicola beveridgei n. sp. (Digenea: Aporocotylidae) from the mangrove jack, Lutjanus argentimaculatus (Perciformes: Lutjanidae), and C. bullardi n. sp. from the Australian spotted mackerel, Scomberomorus munroi (Perciformes: Scombridae), from the northern Great Barrier Reef.

    Science.gov (United States)

    Nolan, Matthew J; Miller, Terrence L; Cutmore, Scott C; Cantacessi, Cinzia; Cribb, Thomas H

    2014-10-01

    Cardicola Short, 1953 is a genus of the Aporocotylidae Odhner, 1912 (Digenea), with 25 currently recognised species described from 32 species of Perciformes and Mugiliformes fishes around the world, including eight species from the Great Barrier Reef. Here, we describe two new species from this region, namely Cardicola beveridgei n. sp. from the ventricle and atrium of the mangrove jack, Lutjanus argentimaculatus (Forsskål) (Perciformes: Lutjanidae), and Cardicola bullardi n. sp. from the ventricle of the Australian spotted mackerel, Scomberomorus munroi Collette & Russo (Perciformes: Scombridae), from off Lizard Island, Queensland, Australia. These two new species are most easily distinguished from the 25 current members of Cardicola in having the combination of i) a spinous oral sucker, ii) an anteriorly intercaecal ovary, iii) a uterus that extends anteriorly from the oötype, iv) the number of spines per ventrolateral transverse row, and in v) body size and the length/width ratio, vi) the oesophagus and caecal length(s) relative to body total length, vii) the length of the posterior caeca relative to the anterior pair, viii) the testis length/width ratio and its total size relative to that of the body, ix) the postovarian field as a percentage of body length, and x) egg size. In addition, C. beveridgei n. sp. is further differentiated by possessing a female genital pore that opens anterodextral to the male pore while C. bullardi n. sp. differs further in possessing a testis that is almost entirely intercaecal and does not extend anteriorly to the level of the intestinal bifurcation. Employing genetic analysis of ITS2 rDNA sequence data, representing these species and a further 13 recognised and three putative species of Cardicola, we were able to unequivocally confirm these specimens as distinct (9-22% different over 420 nucleotide positions). Distance analysis of ITS2 showed that i) species of Cardicola from the Siganidae formed a monophyletic clade, to the

  11. Numerical simulation of influence of the construction of single jacked pile on road%静压单桩施工对道路影响的数值模拟研究

    Institute of Scientific and Technical Information of China (English)

    吕全乐; 鹿群; 郭少龙

    2013-01-01

    为了进一步认识静压桩施工对周边道路的不利影响,采用三维实体模型,综合考虑了桩、路面与土体的摩擦以及大变形、非线性等因素,使之更加符合实际工程,在无道路和存在5 m宽道路两种情况下,分别进行静力压桩数值模拟,分析了两种情况下土体位移的变化以及存在道路时路面板的位移及应力变化.得到结论:存在道路情况下,地表土体水平位移减小,而深部土体水平位移增大;有路情况下土体竖向位移较无路情况的发生了较大变化;路面板在近桩端下沉,远桩端上翘等.%For better understanding the adverse effect of jacked pile construction on surrounding roads, 3D solid models was adopted and the friction between piles or pavements and soils as well as large deformation and nonlinearity were taken into account comprehensively, in accordance with the practical project. Under the conditions that there is no road or a 5m-wide road, numerical simulation and analysis were carried out respectively to calculate the soil displacement in the two cases and the displacement and stress of road slab. The results showed that when there was a road, the horizontal displacement of the soil at the surface decreased while the displacement of the soil in the deep increased, and the vertical displacement of soil increased as compared with no roads, and the pavements subsided at the near-end and upheaved at the far-end.

  12. “狼神”的隐性回归--评《蝇王》中的杰克%The Implicit Recurrence of “the God of Wolf”--- On Jack in “Lord of the Flies”

    Institute of Scientific and Technical Information of China (English)

    薛敏

    2014-01-01

    “The God of Wolf” is a primitive totem ,which plays a very important role in the development of human civilization ,art and society .In the early times of human beings ,“the God of Wolf” existed in human life explicitly .In modern times ,although it has retreated to some extent ,it occasionally comes back in many forms in our literary works .From the view of cultural anthropology and the archetype theory of Carl Jung ,the character Jack in the novel “Lord of the Flies”is the recurrence of “the God of Wolf”in modern literature in an implicit way . This wild wolf is existing on the other side of civilization and ration all the time ,which is a source of courage and strength when human beings are in difficulties and a reminder to make us understand ourselves more completely and more deeply .%“狼神”作为一种原始的图腾崇拜,在人类文明、艺术和社会的发展中起到了非常重要的作用。在人类文明的早期,“狼神”显性地存在于生活的方方面面。直到现代,它虽然退隐,却隐性地以各种形式回归文学作品中。从文化人类学和荣格的原型理论分析,小说《蝇王》中的杰克正是“狼神”在现代社会的一种隐性回归。这只充满野性的狼一直站在文明和理性的对立面,既是人类面对困难时勇气和力量的来源,也时刻警醒这人类更加全面更加深刻的认识自身。

  13. Jack Sparrow on tagasi! / Timo Diener

    Index Scriptorium Estoniae

    Diener, Timo

    2006-01-01

    Gore Verbinski lavastatud piraadi-triloogia teine film "Kariibi mere piraadid : Surnud mehe aardekirst" ("Pirates of the Caribbean : Dead Man's Chest"), peaosas Johnny Depp : Ameerika Ühendriigid 2006

  14. in the writing of Jack Mapanje.

    African Journals Online (AJOL)

    is at odds with the context, we tend to seek relevant features of the word and the situ- ... Man is fused with his raw material because his entity is compressed into two syllabi— ... metaphor; it no longer has validity if the image on which it is based can be .... and the strophic reliability of the text are harboured cynicism and irony.

  15. Black Jack Pershing: Partnerships in Warfare

    Science.gov (United States)

    2010-04-01

    In less than three weeks, the war was over. PARTNERING AND TRUST Partnership has become something of an en vogue term in the realm of military...proclaimed itself an “associate” rather than a full ally of France and Britain , a move which made both Pershing and his doughboys easier targets for the

  16. Hispanos en la EPA: Jack Arias

    Science.gov (United States)

    La diversidad de la fuerza laboral es importante para la Agencia de Protección Ambiental de EE.UU. (EPA, por sus siglas en inglés). Los empleados hispanos de la EPA contribuyen diariamente hacia la protección de la salud y el medio ambiente.

  17. Efforts in Preparation for Jack Validation.

    Science.gov (United States)

    1997-12-01

    vertebrae . The cervical joints can move in a manner similar to the movement of the 17-segment spine. There is a set of default degrees of la...many and many to one. The spine, for example, has 34 vertebrae , 35 joints, and more than 20 muscle groups to support its movements and postures...bottom-rfoot neck.LM- cervicale D CRCHHCHT 39 1 right-foot.LM-bottom-rfoot lower_torso.LM-crotch-level_rt D ILCRSIT 68 1 right-foot.LM__bottom-rfoot 15

  18. Jack Sparrow on tagasi! / Timo Diener

    Index Scriptorium Estoniae

    Diener, Timo

    2006-01-01

    Gore Verbinski lavastatud piraadi-triloogia teine film "Kariibi mere piraadid : Surnud mehe aardekirst" ("Pirates of the Caribbean : Dead Man's Chest"), peaosas Johnny Depp : Ameerika Ühendriigid 2006

  19. Jack Human Modelling Tool: A Review

    Science.gov (United States)

    2010-01-01

    extensively in the automotive industry for the design of vehicle interiors and exteriors, by companies such as Audi, Volkswagen , Daewoo, Ford, Honda, Mazda...resting position can be specified for each degree of freedom. Motors can also be added to a joint, allowing the joint to be continually exercised

  20. Vayamos por partes... dijo Jack el Destripador

    Directory of Open Access Journals (Sweden)

    Miguel Baños González

    2012-04-01

    Full Text Available En la cada día más compleja actividad de comunicación comercial, la publicidad es solamente una herramienta más con diferentes grados de importancia en función del tipo de anunciante. La tendencia a dividir el proceso creativo hasta definir una estructura de fases sucesivas, y en muchos casos de obligado seguimiento, es una visión que se aleja notablemente de la práctica profesional y de la realidad de un mercado holista y global. Por eso, proponemos un cambio de enfoque, analizando la creatividad publicitaria desde una perspectiva que nos permita un conocimiento más profundo, tanto desde punto de vista académico como desde el profesional. 

  1. Desempenho agronômico de milho consorciado com feijão-de-porco em duas épocas de cultivo no sistema orgânico de produção Agronomic performance of corn intercropped with jack beans in two cropping seasons in organic system

    Directory of Open Access Journals (Sweden)

    Adriano Perin

    2007-06-01

    Full Text Available Com o presente trabalho, avalia-se a produção de milho verde e grão em cultivo orgânico e a massa de leguminosa no consórcio milho, feijão-de-porco, em duas épocas de cultivo. Foram realizados dois experimentos de campo, em Viçosa (MG, no período de outono/inverno e de primavera/verão. O milho e o feijão-de-porco foram semeados simultaneamente na mesma linha, espaçadas de 1m. Os tratamentos foram as densidades de feijão-de-porco, 0, 2, 4 e 6 plantas m-1 e as duas épocas de cultivo, no esquema fatorial 4 x 2, utilizando-se o delineamento de blocos casualizados, com quatro repetições. A produção de milho foi influenciada somente pela época do ano, atingindo 7,26 e 9,64 Mg ha-1 de milho verde e 5,01 e 7,46 Mg ha-1 de grãos nos cultivos de outono/inverno e primavera/verão, respectivamente. Houve efeito significativo da densidade de plantas, da época de amostragem e da época de cultivo sobre a produção de massa do adubo verde. A maior produção de biomassa de feijão-de-porco (5,07 Mg ha-1 foi obtida no final do ciclo do milho no cultivo de outono/inverno, com 4,8 plantas m-1. No cultivo de primavera/verão a produção máxima (2,95 Mg ha-1 foi obtida com 6 plantas m-1 também no final do ciclo da cultura do milho. Conclui-se que a produção de milho em cultivo orgânico não é prejudicada pela consorciação com feijão-de-porco.This work evaluates the yield of fresh and grain corn in organic system and the leguminous mass in the intercropping corn, jack beans, in two cropping seasons. Two field experiments were carried out in Viçosa (MG, on Autumn/Winter and Spring/Summer. Corn and jack beans were sown simultaneously in the same rows 1 m apart. The treatments were the jack beans density (0, 2, 4 or 6 plants m-1 and the two cropping season, arranged in a 4 x 2 factorial design and randomized blocks with four repetitions. The corn yield was influenced only by cropping season, reaching 7.26 and 9.64 Mg ha-1 of fresh and

  2. Evaluation of Reinforcement Effect of Ends Soil in Pipe Jacking Machine Launching and Arrival Based on Orthogonal Experiment Method%基于正交试验法的顶管端头土体加固效果评价

    Institute of Scientific and Technical Information of China (English)

    吴飞; 孙阳; 邵国建; 钱军; 刘勇

    2016-01-01

    The end soil reinforcement of pipe jacking launching and arrival is the key to successful tunnel construction. In this paper,the formula of stability coefficient is given when the longitudinal thickness of reinforced soil is greater than the height of the tunnel entrance,which is an improvement for the existing sliding instability theory;and then three dimensional FEMis used to calculate the surface settlement when the H-steel support is removed and when the shield crossed the reinforced area.Finally,the orthogonal experiment method is adopted to analyze the influence of longitudinal thickness of reinforced soil,the strength of reinforced soil and the thickness of cover on reinforcement effect of end soil. The results show that:1)The thickness of cover and the strength of reinforced soil affect the maximum ground surface settlement slightly;but the thickness of reinforced soil affects the maximum ground surface settlement greatly.2)The maximum ground surface settlement can be reduced by increasing the longitudinal thickness of end soil.3 )The thickness of cover is negatively correlated to the stable coefficient of end soil;and the thickness of reinforced soil and strength of reinforced soil is positively correlated to the stable coefficient of end soil.The results can provide an effective way to decide the scheme of end soil reinforcement in the future.%顶管始发与到达时的端头土体加固是隧道施工成败的关键。对现有的滑移失稳理论做出改进,得出了端头土体纵向加固厚度大于洞口高度时的稳定系数计算公式;使用三维有限元数值模拟,计算拔除洞口 H 型钢支护和机头穿越加固区后的端头土体地表沉降;最后采用正交试验法分析了纵向加固厚度、加固强度和上覆土厚度3种因素对端头土体加固效果影响的主次关系。结果表明:覆土厚度和加固强度对端头土体地表最大沉降值影响并不显著,而加固厚度对其影响很大,

  3. Genome-wide association study for hereditary ataxia in the Parson Russell Terrier and DNA-testing for ataxia-associated mutations in the Parson and Jack Russell Terrier.

    Science.gov (United States)

    Gast, Alana Christina; Metzger, Julia; Tipold, Andrea; Distl, Ottmar

    2016-10-10

    Spinocerebellar ataxia also referred to as hereditary ataxia comprises different forms of progressive neurodegenerative diseases. A complex mode of inheritance was most likely in Parson Russell Terriers (PRT) and in Jack Russell Terriers (JRT). Recently, the missense mutation KCNJ10:c.627C > G was shown to be associated with the spinocerebellar ataxia (SCA) in JRT and related Russell group of terriers, whereas the missense mutation CAPN1:c.344G > A was associated with late onset ataxia (LOA) in PRT. We performed a genome-wide association study (GWAS) in PRT including 15 cases and 29 controls and found a statistically strong signal in the genomic region on dog chromosome 38 (CFA38) where KCNJ10 is located. We tested the CAPN1:c.344G > A and KCNJ10:c.627C > G (Transcript XM_545752.4) mutations in a sample of 77 PRT and 9 JRT from Germany as well as further 179 controls from 20 different dog breeds. All cases and controls genotyped carried the wild-type for the CAPN1:c.344G > A mutation. Among the PRT, 17/77 (22.1 %) dogs were homozygous for the mutant KCNJ10 allele and 22/77 (28.6 %) dogs were heterozygous. Three cases of PRT had the homozygous KCNJ10 wild-type. In JRT, 1/3 cases did show the mutant KCNJ10 allele homozygous. Thus, we sequenced the KCNJ10 exons with their adjacent regions from 10 PRT and 3 JRT including the animals with imperfect co-segregation of the c.627C > G mutation. We identified a total of 45 genetic variants within KCNJ10. The most likely variant explaining the cases appeared a 1-bp-insertion in a C-stretch within exon 3 (KCNJ10:g.22141027insC). In silico analysis showed that this indel may influence the regulation of gene expression. In the present study, 16/21 cases of hereditary ataxia perfectly co-segregated with the KCNJ10:c.627C > G mutation. The CAPN1:c.344G > A mutation could not be validated and seems to be a rare variant in the samples screened. Screening KCNJ10 for further mutations did result in a

  4. Produção de biomassa e teor de macronutrientes do milheto, feijão-de-porco e guandu-anão em cultivo solteiro e consorciado Biomass production and macronutrients quantity of millet, jack bean, guandu single and in intercropping

    Directory of Open Access Journals (Sweden)

    Cícero Monti Teixeira

    2005-02-01

    Full Text Available Objetivou-se determinar a produção de biomassa e o teor de macronutrientes do milheto (Pennisetum typhoides (Burm. Stapf, feijão-de-porco (Canavalia ensiformes (L. DC. e guandu-anão (Cajanus cajan (L. Millsp. em cultivo solteiro e nos consórcios da gramínea com as leguminosas, visando a produção de palha no sistema plantio direto. O trabalho foi conduzido no campo experimental do Departamento de Agricultura da Universidade Federal de Lavras (Lavras, MG, Brasil. O delineamento foi o de blocos casualizados, com cinco tratamentos e quatro repetições. Apenas o guandu-anão solteiro apresentou menor produção de fitomassa fresca e seca, sendo que os demais tratamentos não diferiram entre si, pelo teste de Tukey a 5% de probabilidade. De forma geral, as leguminosas apresentaram maiores teores de N e Ca e o milheto maiores teores de S. Apenas o feijão-de-porco solteiro apresentou menor teor de P. Os maiores teores de K foram apresentados pelo milheto solteiro e consorciado com as leguminosas e pelo feijão-de-porco em consórcio com milheto. Os menores teores de Mg foram verificados para o guandu-anão.The object of this work was to evaluate the biomass production and the macronutrients quantity of millet (Pennisetum typhoides (Burm. Stapf, jack bean (Canavalia ensiformes (L. DC., guandu (Cajanus cajan, (L. Millsp. dwarf cultivar, and the millet with leguminous consortiums to straw production in no-tillage system. The experiment was carried in experimental area at Agriculture Department of the Federal University of Lavras (Lavras, Minas Gerais state, Brazil. The experimental design was randomized blocks, with five treatments and four replications. For biomass production, only the guandu presented smaller fresh and dry biomass yield than the other treatments. In general, the leguminous presented the greatest N and Ca quantities and millet the greatest quantities of S. Only jack bean presented minor P quantity. For K the greatest quantities

  5. Effect of buffaloαs1-casein polymorphism on the quality of semi-hard Monterey Jack-type cheese%水牛乳αs1酪蛋白多态性对类蒙特利杰克半硬质干酪品质的影响

    Institute of Scientific and Technical Information of China (English)

    李玲; 唐艳; 黄丽; 农皓如; 曾庆坤; 任大喜; 杨攀; 冯玲

    2016-01-01

    ObjectiveTo analyze the effect ofαs1-casein genotype of water buffalo on the quality of semi-hard Monterey Jack-type cheese.MethodsThe genotype ofαs1-casein was analyzed byphase reversal-high performance liquid chromatography (RP-HPLC), Monterey Jack-type cheese was made according to theαs1-casein genotypes, and the differences in composition, texture and color of cheese were compared.ResultsTwo types ofαs1-casein (AB and BB) were found in water buffalo milk. After makingMonterey Jack-type cheese used mixed sample as control group, fat content of BB type was lower than that of AB type. Hardness and springiness of BB type cheese were 41.21 N and 6.31 mm, which were significantly higher than those of AB type (29.45 N, 5.56 mm) and control group (38.21 N, 5.25 mm), moreover, the gumminess and chewiness of BB type cheese were also higher. For the colour and lustre,B value of BB type cheese was lower than that of AB type, which meant more yellow colour was found in AB type cheese.Conclusionαs1-casein polymorphism is found in Chinese water buffalo, and the quality of semi-hard Monterey Jack-type cheese could be effected byαs1-casein polymorphism.%目的:分析水牛乳αs1酪蛋白(αs1-casein)多态性对类蒙特利杰克干酪品质的影响。方法采用反相高效液相色谱法分析不同水牛乳样品αs1-casein的多态性,依据αs1-casein多态性制成半硬质类蒙特利杰克干酪,比较其在组成、质构和色差等方面的差异。结果水牛乳αs1-casein存在AB和BB两种表型。以混合样品为对照制成类蒙特利杰克干酪后,在干酪成份上, BB型干酪中乳脂肪含量显著低于AB型;在质构方面,BB型干酪的硬度和弹性分别为41.21 N和6.31 mm,显著高于AB型(29.45 N,5.56 mm)和混合组(38.21 N,5.25 mm),此外BB型具有更高的胶粘性和咀嚼性;在色泽方面, BB型干酪的B值显著低于AB组,表明黄色程度低于AB型。结论水牛乳αs1-casein存在多态性,且αs1-casein的多

  6. Jack Mitchell : kallistage oma töötajaid / Jack Mitchell ; interv. Neeme Raud

    Index Scriptorium Estoniae

    Mitchell, Jack

    2007-01-01

    Kuidas üks maailma edukamaid ärimehi valib oma firmasse töötajaid, tema müügikultuurist ning peatselt ilmuvast teisest raamatust, kus peamiseks põhitõeks on oma töötajatest lugupidamine ning nende "kallistamine". Lisa: Jacki viis põhitõde

  7. Jack Deverell : NATO ei kao kuhugi / Jack Deverell ; interv. Margus Kolga

    Index Scriptorium Estoniae

    Deverell, Jack

    2005-01-01

    NATO põhjapiirkonna vägede endise juhi arvates võiks NATO olla endiselt peamine sõjalise jõu instrument, olgu tegemis siis NATO või EL-i juhitud sõjalise operatsiooniga, ta ei usu, et NATO ja EL muutuvad sõjaliselt ning poliitiliselt omavahel võistlevateks organisatsioonideks. Riigid peaksid tegutsema koos selliste sõjaliste võimete loomisel, milleks nad üksi suutelised ei ole

  8. Jack Deverell : NATO ei kao kuhugi / Jack Deverell ; interv. Margus Kolga

    Index Scriptorium Estoniae

    Deverell, Jack

    2005-01-01

    NATO põhjapiirkonna vägede endise juhi arvates võiks NATO olla endiselt peamine sõjalise jõu instrument, olgu tegemis siis NATO või EL-i juhitud sõjalise operatsiooniga, ta ei usu, et NATO ja EL muutuvad sõjaliselt ning poliitiliselt omavahel võistlevateks organisatsioonideks. Riigid peaksid tegutsema koos selliste sõjaliste võimete loomisel, milleks nad üksi suutelised ei ole

  9. Jack Mitchell : kallistage oma töötajaid / Jack Mitchell ; interv. Neeme Raud

    Index Scriptorium Estoniae

    Mitchell, Jack

    2007-01-01

    Kuidas üks maailma edukamaid ärimehi valib oma firmasse töötajaid, tema müügikultuurist ning peatselt ilmuvast teisest raamatust, kus peamiseks põhitõeks on oma töötajatest lugupidamine ning nende "kallistamine". Lisa: Jacki viis põhitõde

  10. Nutrição mineral do feijoeiro em influência de nitrogênio e palhadas de milheto solteiro e consorciado com feijão-de-porco = Bean mineral nutrition influenced by nitrogen and straws of millet and millet plus jack bean intercropping

    Directory of Open Access Journals (Sweden)

    Cícero Monti Teixeira

    2010-07-01

    Full Text Available O objetivo foi avaliar o efeito das palhadas de milheto (Pennisetum typhoides (Burm. Stapf e milheto + feijão-de-porco (Canavalia ensiformes (L. DC. e diferentes doses de nitrogênio, na nutrição mineral do feijoeiro. O delineamento foi em blocos casualizados, comquatro repetições, em esquema de parcelas subdivididas, em Latossolo Vermelho, em plantio direto. As parcelas foram constituídas pelas palhadas e as subparcelas por um fatorial 2 x 4 + 1, representado por duas doses de N na semeadura (30 e 60 kg ha-1 e quatro em cobertura (0, 40, 80 e 120 kg ha-1, mais um tratamento adicional, correspondente a 30 kg ha-1 de N na semeadura, sem cobertura, com inoculação das sementes com Rhizobium tropici e aplicação foliar de Co e Mo. A palhada de milheto + feijão-de-porco proporcionou maiores teores foliares de N e Mg. A cobertura nitrogenada aumentou o teor do nutriente até a dose de 116 kg ha-1, proporcionando incrementos lineares nos teores de K e S. Para os teores de Mg houve interação tripla. O tratamento adicional aumentou o teor de N sob palhada de milheto, os teores de K e Cu e o rendimento de grãos sob ambas palhadas e reduziu os teores de Ca e Mg, sob palhadas de milheto e milheto + feijão-de-porco, respectivamente. As doses de N em cobertura aumentaram o rendimento de grãos em ambas as doses de base, com maior resposta na de 30 kg ha-1 de N. This study was carried out to evaluate the effect of straws of millet (Pennisetum typhoides (Burm. Stapf and millet plus jack bean (Canavalia ensiformes (L. DC. intercropping and nitrogen fertilization levels on bean mineral nutrition in a no-till system. The experiment was carried out in a randomized blocks design and four replications in a split-plot arrangement, with the straws in the plots and nitrogen levels at sowing (30 and 60 kg ha-1 and at topdressing (0, 40, 80 and 120 kg ha-1 as a 2 x 4 + 1 factorial in sub-plots, plus an additional treatment with 30 kg ha-1 at sowing, without

  11. 论庞德的意象派诗歌及其创意翻译%On Ezra Pound's Imagery Poem and His Creative on Ezra Pound's Imagery Poem and His Creative Rendering

    Institute of Scientific and Technical Information of China (English)

    宁顺青

    2006-01-01

    埃兹拉·庞德作为美国意象主义诗歌的公认领袖,他英译的中国古典诗歌在英语诗歌发展中起到了积极的推动作用,他的诗学在很大程度上被称作翻译诗学.本文通过对庞德的诗学观点和翻译理论的解析和对的译例分析,阐述庞德运用创新手法对中国古典诗歌进行创意翻译的成功之处.

  12. Primer registro de la asociación del jurelillo negro Hemicaranx zelotes Gilbert (Pisces: Carangidae con la medusa bala de cañón Stomolophus meleagris Agassiz (Scyphozoa: Rhizostomatidae en Bahía de Kino, Golfo de California First record of association of the Blackfin Jack Hemicaranx zelotes Gilbert (Pisces: Carangidae with the cannonball jellyfish Stomolophus meleagris Agassiz (Scyphozoa: Rhizostomatidae in Kino Bay, Gulf of California

    Directory of Open Access Journals (Sweden)

    Juana López Martínez

    2008-08-01

    Full Text Available Se detectó la asociación de juveniles del jurelillo negro Hemicaranx zelotes (Gilbert 1898 con medusas de la especie Stomolophus meleagris (Agassiz 1860 en Bahía de Kino, Golfo de California, México. Los peces fueron observados acompañando a la medusa entre la subumbrela y los brazos orales, manifestándose una simbiosis, comportamiento usualmente utilizado por los peces juveniles para protegerse de sus depredadores e incrementar su tasa de sobrevivencia. Hasta la fecha no se había documentado ningún caso de asociación entre el jurelillo negro y la medusa bala de cañón, por lo que este es el primer registro de tal simbiosis.Juvenile Blacking Jack Hemicaranx zelotes (Gilbert 1898 associated with cannonball jellies Stomolophus meleagris (Agassiz 1860 in Kino Bay, Gulf of California, Mexico was observed. The fish accompany the jellies, swim between the umbrella and the oral arms, showing a symbiotic behavior that the fish use for protection from predators. This is the first record of a symbiotic association of Blacking Jack with can-nonball jellies.

  13. 儒家思想对庞德的影响%On the Influence of Confucianism on Ezra Pound

    Institute of Scientific and Technical Information of China (English)

    农佳; 韦鸿发

    2011-01-01

    埃兹拉·庞德是中国古典诗歌和中国儒家思想的传播者.庞德翻译中国诗歌和儒家经典,并将儒家思想融入其作品中,加深了对中国文化的认识,推动了英美诗歌的现代化.

  14. Ezra Pound: Imagist and Imagist Poetry%从庞德的意象观看意象派诗歌

    Institute of Scientific and Technical Information of China (English)

    刘蕊

    2010-01-01

    意象派诗歌的存在时期虽然短暂,但在诗歌界却具有举足轻重的份量.本文以庞德的意象观作为切入点,尝试探讨意象、意象派的本质,并采用文本分析的方法,阐释了意象派的兴起、发展以及它与象征主义的渊源关系和区别之处.

  15. SEPHIROT: Scenario for Universe-Creation AUTOMATICALLY from Digits On-Average Euler-Bernoulli-Kummer-Riemann-Newcomb-Poincare-Weyl-Benford-Kac-Raimi-Hill-Antonoff-Siegel ``Digit-Physics'' Logarithm-Law: ``It's a Jack-in-the-Box Universe'': EMET/TRUTH!!!

    Science.gov (United States)

    Siegel, Edward Carl-Ludwig; Young, Frederic; Wignall, Janis

    2013-04-01

    SEPHIROT: Siegel[http://fqxi.org/community/forum/topic/1553]: Ten-[0->9]-Digits; Average Log-Law SCALE-Invariance; Utter-Simplicity: ``Complexity'' (vs. ``Complicatedness''); Zipf-law/Hyperbolicity/ Inevitability SCENARIO AUTOMATICALLY CREATES & EVOLVES a UNIVERSE: inflation, a big-bang, bosons(E)->Mellin-(c2)-tranform->fermions(m), hidden-dark-energy(HDE), hidden-dark-matter (HDM), cosmic-microwave-background(CMB), supersymmetry(SUSY), PURPOSELY NO: theories,models,mechanisms,processes, parameters,assumptions,WHATSOEVER: It's a ``Jack-in-the-Box'' Universe!!!: ONLY VIA: Newcomb [Am.J.Math.4(1),39(1881)]QUANTUM-discovery!!!-Benford-Siegel-Antonoff[AMS.Joint-Mtg.(02)-Abs.#973-60-124!!!] inversion to ONLY BEQS with d=0 BEC: ``Digit-Physics''!; Log fixed-point invariance(s): [base=units=SCALE] of digits classic (not classical!) average [CAUSING] log statistical-correlations =log(1+1/d), with physics-crucial d=0 BEC singularity/pole, permits SEPHIROT!!!: ``digits are quanta are bosons because bosons are and always were digits!!!'': Digits = Bosons with d=0 BEC(!!!) & expansion to Zipf-law Hyperbolicity INEVITABILITY CMB!

  16. Quality Control Requirements of Curved Jacking Engineering for Glass Fibre Reinforced Plastic Concrete Pipe (FRPCP) with Large Diameter%大口径玻璃纤维增强混凝土管(FRPCP)曲线顶管工程的质量控制

    Institute of Scientific and Technical Information of China (English)

    周仕刚; 朱文国; 薛元德; 徐刚; 邵成猛; 丁玉龙

    2012-01-01

    该文介绍了玻璃纤维增强树脂混凝土管的管壁结构形式,针对凌桥工程曲线压力顶管确定管材的技术要求,同时通过添加玻璃钢丝改善管口处的压缩变形能力,降低顶进过程中应力集中造成管口破坏的可能性.提出了主要原材料的技术要求和生产过程监造技术要求.%Wall structure of FRPCP was introduced, the technical requirements of pressure pipe for curved jacking of Lingqiao project were stated. By adding glass fiber and GRP fiber, the compressive deformation was improved to reduce the possibility of failure of the pipe joint caused by stress concentrations. The technical requirements for raw materials and supervision of the production process are given.

  17. SEPHIROT: SCENARIO for CREATION AUTOMATICALLY from DIGITS AVERAGED-PROBABILITY Newcomb-Benford Log-Law: Inflation, BosonS, a Maxwell-Boltzmann Big-Bang Fireball, FermionS, HDE, HDM, CMB; UTTER-SIMPLICITY PURPOSELY SANS ANYthing!!!: It's a Jack-in-the-Box Univers: A Consciousness? EMET/TRUTH!!!

    Science.gov (United States)

    Siegel, Edward Carl-Ludwig; Marvin Antonoff/Albert Overhauser(RIP)/Frederic Young/Adolph Smith/Irwin Wunderman(RIP/Janis Wignall Team

    2013-03-01

    Siegel[http://fqxi.org/community/forum/topic/1553]: TEN-DIGITS[0,...,9] PROBABILITY AVERAGE LOG-Law SCALE-INVARIANCE; Utter-Simplicity: ``Complexity'' (Versus ``Complicatedness'') Zipf-law/ Hyperbolicity/ Inevitability (Archimedes), vs, Pareto-law, SCENARIO AUTOMATICALLY CREATES a UNIVERSE: inflation, a big-bang, bosons(E) ->Mellin-(c⌃2)-tranform -> fermions (m) , hidden - dark - energy (HDE) , hidden - dark - matter (HDM) , cosmic-microwave-background(CMB), supersymmetry(SUSY) PURPOSELY SANS ANY: theories, models, mechanisms, processes, parameters, assumptions,...WHATSOEVER: It's a'' Jack-in-the-Box'' Universe!!! ONLY VIA: Bose-{Euler[(1732)] sum =product over-reals R-Riemann[Monats. Akad.,(1859)] sum =product over-complexs)-Bernoulli-Kummer}-Newcomb[Am. J. Math. 4(1), 39(1881) THE discovery of the QUANTUM!!!]-{Planck(1901)]-Einstein(1905)]-Sommerfeld}-Poincare[Calcul des Probabilités, 313 (1912)]-Weyl[Goett. Nach.(1914); Math. Ann. 77, 313(1916)]-(Bose(1924)-Einstein(1925)]-VS.

  18. 从刻板书写到理性描画——论西方“文明化”范式下杰克·伦敦中国观之渐变性%From Stereotyped of Jack London's Writing to Reasonable Depiction: On the Gradient View of China within the Western "Civilization" Paradigm

    Institute of Scientific and Technical Information of China (English)

    王丽耘; 朱珺

    2012-01-01

    with the increasing exchange between the east and the west at the early turn of the 20th century, a number of eastern images appeared in the works of western writers. Within the western "civilization" paradigm, the eastern images, as the "otherness", were set opposite its core conception of progress and freedom: stagnant and despotic. Jack London, a famous American writer living at this historic time, also participated in the stereotyped writing, but it was precious that he didn't stop there, his early racialism of white supremacy was more replaced by his later understanding, sympathy and reasonable thinking. While the whole west was busying with creating a negative and evil Chinese image, London was occupied with the thought of communication possibility between the east and the west. Therefore his six writings about China throughout his life are worthy of the academic studies. The evolution of' Chinese images in these six stories revealed to us a dynamic process of change in the writer's view of China. From the early barefaced "white supremacy" racism to the reasonable thinking and objective description, then to the obvious weakening of ethnic consciousness and the optimistic expectation of the communication between the east and the west, Jack London's view of China dramatizedly changed.%19世纪末20世纪初东西方交流变得频繁,西方作家笔下出现了不少东方形象。在西方"文明化"的大叙事中,东方形象作为"他者",是"文明化"核心概念"进步"与"自由"的对立面:停滞与专制。杰克.伦敦身处其时,也参与了美国作家关于中国的刻板书写,可贵的是他最终走了出来,早年露骨的"白人至上"种族主义思想更多地为理解、宽容、同情与理性思索所替代。在整个西方还在忙于塑造一个被否定的、邪恶的中国形象之时,伦敦已能思考东西方交流可能性之题,他笔下的中国形象故而特别值得中外学者关注。从早先

  19. 《达摩流浪者》--杰克·凯鲁亚克的一本献给美国寒山的小说∗%The Dharma Bums,a Novel Devoted to an American Han Shan by Jack Kerouac

    Institute of Scientific and Technical Information of China (English)

    陈登; 谭琼琳

    2014-01-01

    在基于史料的基础上,从变异学角度论述垮掉派作家杰克·凯鲁亚克的半自传体虚构小说《达摩流浪者》是如何将中国唐朝诗僧寒山的神秘东方形象、《寒山诗》译者美国诗人加里·斯奈德与主人公贾菲·赖德合为一体的。通过文化迁移的作用,作者成功地将主人公赖德变异,塑造为小说中的美国垮掉派反主流文化的英雄偶像,从而使得现实中的斯奈德成为美国寒山的杰出代表,也使得这本小说不仅是作者献给中国寒山的书,也是一本献给美国寒山的书。%This paper is a thorough study of the beat writer Jack Kerouac’s semi-fictional novel The Dharma Bums from the angle of acculturation and historical events.It aims to examine how Han Shan (mysterious hermit poet of the Tang Dynasty),Gary Snyder (American translator of Cold Mountain Po-ems)and Japhy Ryder (main character of The Dharma Bums)are merged into oneness and thus transferred to an American counter-cultural beat hero in the novel.The paper contends that this novel is not only de-voted to the ancient Chinese poet Han Shan,but also to Gary Snyder,an exemplary representative of an American Han Shan.

  20. EDTA assisted phytorremediation of a Pb contamined soil: metal leaching and uptake by jack beans Lixiviação e absorção de Pb pelo feijão-de-porco assistido pela aplicação de EDTA no solo

    Directory of Open Access Journals (Sweden)

    Mariana Bassetto Gabos

    2009-08-01

    Full Text Available Lead (Pb is one of the main soil contaminants. It is also of difficult phytoremediation due to its low solubility and high retention on soil particles. EDTA application to soil is a strategy to increase heavy metal phytoextraction, but such chelants usually cause phytotoxicity and metal leaching side effects. Therefore, these research work objectives were to evaluate the effects of single (0.5 g kg-1 and split (0.25 + 0.25 g kg-1 EDTA application on Pb uptake by jack beans (Canavalia ensiformis L. as well as on Pb vertical movement in a Pb contaminated soil material. Two sets of experiments were carried out under greenhouse conditions: in the first one, plants were grown in 3L-pots filled with a Pb-contaminated soil to evaluate Pb uptake by plants; for the second experiment, PVC-columns (42 cm height were used to evaluate soil Pb leaching: the upper half-column (20 cm was filled up with Pb-contaminated soil (1800 mg kg-1 whereas the lower half-column (20 cm was filled with clean soil. Ten 60 mm-rainfalls with a duration of five hours were simulated by dropping distilled water on the top of columns, and leachates were collected for chemical analysis. Plants did not show any visual Pb toxicity symptoms or reduction in dry matter yield. Nevertheless, Pb uptake by jack beans regarded as total plant Pb accumulation was higher in EDTA-treated plants. Vertical Pb movement was observed mostly for the single EDTA application. EDTA addition to the soil favor Pb-phytoextraction by jack beans and the split EDTA application decrease the metal leaching, indicating less risk of environmental contamination.O chumbo (Pb é um dos principais contaminantes de solo. Os processos de remediação são dificultados devido à alta retenção do elemento às partículas do solo. A utilização do EDTA para aumentar a fitoextração dos metais do solo tem apresentado bons resultados. Contudo, os quelantes podem causar efeitos indesejáveis como a fitotoxidez e a lixivia

  1. 济慈的诗歌理念及其诗美艺术空间营造%The Notion and the Aethetic Space of keats's poetry

    Institute of Scientific and Technical Information of China (English)

    王僴中

    2005-01-01

    19世纪英国著名浪漫主义诗人济慈的作品以浪漫主义美丽意境闻名于世.具体而微的形象构思是构造这种美丽意境的内涵,"真与美的统一"原则是这种美丽意境的指导思想.而且,济慈具有独具一格的美学想像与思维,毋庸置疑,"感应"与"反面感受力"是其美学想像与思维的具体体现.济慈诗歌包括两个主流领域,即大自然与爱情,而大自然与爱情又往往相互交织,融合无间,构成一幅幅美丽的画面.美丽意境在济慈的诗篇中俯拾皆是,因而不免引起偏颇之见,以为他是一位唯美主义诗人.其实,他的诗歌不仅字句、景物、描写美,而且具有更深层的精神之美,他始终不忘以美的诗篇为人类谋求美好人生的崇高理想.

  2. Department of Defense: Prime Contracts over $25,000 by Federal Supply Classification. Fiscal Year 1992 (6515, Dacomed Corporation -- 7310, Keating of Chicago Inc)

    Science.gov (United States)

    1993-01-01

    16 .4S 16 0kK u 0.- 10 1 2 1 0 0 Z 1 - 00z z U) 0 I I 0 w 0 L" - 1-) < (A 0L < 0w >- 0- w I. 2 w u(9> I In0 oIU I 00w4 2 0 CY) I- C. I, kn In m r...0 4 II - 16 cc 4 - -4 - -A - L- L. -. L- to -4 1.- 0 .II0 0 0 0 10.0 0 0 0 a 0a 0 0 0 0 0M 0 0> 1- 1 00 -0 0 00 0 0 0 0 0 0 0u00 0 td 001 Mm 44 .4...C -.4 >- -. 4 -4 .0 :K M to -,4 -4 0 _4 C" Im I in 0 L- -4 m X 14 -4 -4 L. -4 -4 L- 3: 3. L. L. td ý4 to 4) M -4 M M a, to to 0 re = -4 -4 4, 4

  3. Cracker Jacks: "Finding the Prize" inside Each Adolescent Learner

    Science.gov (United States)

    Ellerbrock, Cheryl; DiCicco, Michael; Denmon, Jennifer M.; Parke, Erin; Mead, Sarah

    2017-01-01

    The purpose of this manuscript is to highlight several practical classroom examples of asset-driven acts of reciprocal care and content-driven community builders and icebreakers that highlight ways to "find the prize" inside each student by fostering an adolescent-centered community of care that is committed to both relationships and…

  4. All work and no play makes Jack a dull boy…

    CERN Multimedia

    Staff Association

    2015-01-01

    The benefits of belonging to a CERN Club are numerous for you as an individual and for CERN as an Organization! At CERN there are nearly 50 Clubs, run by teams of keen and dedicated volunteers, each offering sporting, cultural or technology-related activities.  Becoming a member of one of those clubs will enable you to carry out your preferred hobbies and interests and at the same time, it will enhance your non-professional relations amongst other colleagues working at CERN and also facilitate your (and your family’s) integration in the local area. Joining a CERN club will help your widen your circle of friends and help you understand the work carried out by your colleagues in different domains within CERN. CERN clubs are open to people from the local area, which also means you can mingle with people from varying backgrounds and nationalities from the region, again aiding integration and your language skills. It gives CERN people the opportunity to explain to our friends from the local ar...

  5. Jack Thomas, our third baby, enters the world!

    Science.gov (United States)

    Stebbins, Anne

    2014-01-01

    Without the confidence and support of the medical team, this mother's first birth was difficult and unsatisfying. She was able to give birth naturally, in the care of a midwife, with her second baby. With confidence in her ability to give birth and the wisdom that comes with experience, she is able to give birth naturally with her third baby in spite of being induced.

  6. Jack Thomas, Our Third Baby, Enters the World!

    OpenAIRE

    Stebbins, Anne

    2014-01-01

    Without the confidence and support of the medical team, this mother’s first birth was difficult and unsatisfying. She was able to give birth naturally, in the care of a midwife, with her second baby. With confidence in her ability to give birth and the wisdom that comes with experience, she is able to give birth naturally with her third baby in spite of being induced.

  7. Theoretical Analysis and Simulation of Jacking Procedure of Pantadome System

    Institute of Scientific and Technical Information of China (English)

    WANG Xiaodun; SHI Yongjiu; WANG Yuanqing; Kawaguchi Mamoru

    2005-01-01

    In order to obtain the principle of Pantadome lifting process and make theoretical foundation for practical applications, the core idea of Pantadome was introduced, which is to make a structure become a mechanism by temporarily removing some members during the process of construction.The abstract motion model was built. By determining the change of the coordinates of the hinge joint and that of each point of the structure, simulative analysis of the mechanical motion of Pantadome was realized. Then general program that simulates the lifting process of Pantadome was developed based on AutoCAD environment by Auto Lisp language. By completing the theoretical analysis of the lifting process of Pantadome, three-dimensional simulation of the lifting process of Pantadome was realized. And it is successfully applied to bidding work of practical engineering.

  8. Cracker Jacks: "Finding the Prize" inside Each Adolescent Learner

    Science.gov (United States)

    Ellerbrock, Cheryl; DiCicco, Michael; Denmon, Jennifer M.; Parke, Erin; Mead, Sarah

    2017-01-01

    The purpose of this manuscript is to highlight several practical classroom examples of asset-driven acts of reciprocal care and content-driven community builders and icebreakers that highlight ways to "find the prize" inside each student by fostering an adolescent-centered community of care that is committed to both relationships and…

  9. Librarianship and literature essays in honour of Jack Pafford

    CERN Document Server

    Milne, A T

    2014-01-01

    These essays are produced in honour of the seventieth birthday of Dr J. H. Pafford, Goldsmith's Librarian of the University of London from 1945 to 1967, and reflect his interests in librarianship, textual editing and local history.

  10. Aharon Nkwodimmah: A Jack of All Trades (and Careers)

    Science.gov (United States)

    Blandford, Ayoka

    2012-01-01

    Meet 19-year-old barber, artist and soon-to-be college freshman Aharon Nkwodimmah. Nkwodimmah began honing his barbering skills at the age of 12 on his younger brother's head, without permission, of course: that didn't turn out well for either of them. But by the age of 15, Nkwodimmah was known for his "lines." And for that reason, there was…

  11. USA hiiglane GE Healthcare korraldab meditsiinis revolutsiooni / Andrew Jack

    Index Scriptorium Estoniae

    Jack, Andrew

    2006-01-01

    General Electricu tütarettevõte GE Healthcare võttis üle Briti diagnostika- ja bioteaduse uurimisfirma Amersham, firma strateegia tuum on võimsa skaneerimistehnoloogia ja meditsiinilise diagnostika üksteisele lähendamine. Lisa: Aeg sorteerida andmeid infotehnoloogia abil

  12. Õiglasem ja moodsam ELi arve / Jack Straw

    Index Scriptorium Estoniae

    Straw, Jack

    2005-01-01

    Suurbritannia välisminister selgitab Suurbritannia kui Euroopa Liidu eesistujamaa poolt esitatud ettepanekuid Euroopa Liidu järgmise, 2007.-2013. aasta eelarveperioodi rahastamiskava kohta ning kinnitab, et Suurbritannia on valmis maksma oma osa ühenduse eelarvesse, kuid ainult oma õiglase osa

  13. Quantum Mechanics in Chemistry (by Jack Simons and Jeff Nichols)

    Science.gov (United States)

    McCallum, C. Michael

    1998-12-01

    Topics in Physical Chemistry Series. Oxford University Press: New York, 1997. xxiii + 612 pp. Illustrations. ISBN 0-19-508200-1. $75.00. One of the problems faced by graduate-level quantum mechanics courses in chemistry is that there is often little time for studying chemical problems. Students must learn so much matrix algebra and notation that a first-semester course seems more like a math or physics course than chemistry. Another problem is the focus of most graduate texts. Excellent texts, such as those by Sakurai, and older treatments, such as Messiah and Cohen-Tannoudji, offer a comprehensive amount of mathematical rigor to go along with chemistry problems, but it seems the intended audience is hard-core theoretical or physical chemistry students. Requirements that are more general, such as reaction-path dynamics, structure and term symbols, and symmetry in quantum mechanical problems, are often left behind. Schatz and Ratner's Book Quantum Mechanics in Chemistry (Prentice Hall) is one book that fills this gap (at least for second-semester students); Simons and Nichols' new book is another, but it is a book that requires revision before it can be seriously considered.

  14. Õiglasem ja moodsam ELi arve / Jack Straw

    Index Scriptorium Estoniae

    Straw, Jack

    2005-01-01

    Suurbritannia välisminister selgitab Suurbritannia kui Euroopa Liidu eesistujamaa poolt esitatud ettepanekuid Euroopa Liidu järgmise, 2007.-2013. aasta eelarveperioodi rahastamiskava kohta ning kinnitab, et Suurbritannia on valmis maksma oma osa ühenduse eelarvesse, kuid ainult oma õiglase osa

  15. USA hiiglane GE Healthcare korraldab meditsiinis revolutsiooni / Andrew Jack

    Index Scriptorium Estoniae

    Jack, Andrew

    2006-01-01

    General Electricu tütarettevõte GE Healthcare võttis üle Briti diagnostika- ja bioteaduse uurimisfirma Amersham, firma strateegia tuum on võimsa skaneerimistehnoloogia ja meditsiinilise diagnostika üksteisele lähendamine. Lisa: Aeg sorteerida andmeid infotehnoloogia abil

  16. All Work and No PLA Makes Jack a Dull Boy

    Science.gov (United States)

    Popova-Gonci, Viktoria

    2009-01-01

    In this article, the author presents an assortment of approaches--building blocks--commonly used in Prior Learning Assessment (PLA) practices (this list is certainly not comprehensive): (1) course matching (comparing course requirements to a student's prior learning experiences); (2) student's ability to articulate learning gained from…

  17. Jack of all trades: Versatile catechol crosslinking mechanisms

    NARCIS (Netherlands)

    Yang, J.; Cohen Stuart, M.A.; Kamperman, M.M.G.

    2014-01-01

    Catechols play an important role in many natural systems. They are known to readily interact with both organic (e.g., amino acids) and inorganic (e.g., metal ions, metal oxides) compounds, thereby providing a powerful system for protein curing. Catechol crosslinked protein networks, such as scleroti

  18. Jack Steinberger: Memories of the PS and of LEP

    Science.gov (United States)

    Tsesmelis, Emmanuel

    2012-03-01

    This contribution, a personal recollection by the author, is part of a special issue - CERN's accelerators, experiments and international integration 1959-2009. Guest Editor: Herwig Schopper [Schopper, Herwig. 2011. Editorial. Eur. Phys. J. H 36: 437

  19. Jack Steinberger Memories of the PS and of LEP

    CERN Document Server

    Tsesmelis, Emmanuel

    2012-01-01

    This contribution, a personal recollection by the author, is part of a special issue CERNs accelerators, experiments and international integration 1959-2009. Guest Editor: Herwig Schopper [Schopper, Herwig. 2011. Editorial. Eur. Phys. J. H 36: 437].

  20. Oregon Spotted Frog (Rana pretiosa) Monitoring at Jack Creek 2015

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This dataset contains information from mark-recapture surveys conducted in 2015 by USGS as part of an ongoing Oregon spotted frog (Rana pretiosa) monitoring effort...

  1. Hoornloos fokken vraagt draagvlak ( interview met Jack Windig)

    NARCIS (Netherlands)

    Knaap, J.

    2009-01-01

    Het fokken op hoornloosheid kan een einde maken aan het kunstmatige onthoornen. Dat is goed voor het dierwelzijn vinden veehouders, maar de burger denkt daar in eerste instantie anders over, zo blijkt uit onderzoek van ASG

  2. Liberação de macronutrientes das palhadas de milheto solteiro e consorciado com feijão-de-porco sob cultivo de feijão Macronutrient release from straw of millet and millet - jack - bean intercropping under common bean

    Directory of Open Access Journals (Sweden)

    Cícero Monti Teixeira

    2010-04-01

    matéria seca e maiores teores de N e Ca, ciclando maior quantidade de todos os macronutrientes. A palhada de milheto + feijão-de-porco apresentou maiores velocidades de decomposição e liberação de N, Ca e Mg.Nutrients recycle is related to the absorption capacity by different cover crop species. Already speeds of decomposition and of nutrient release of straws produced is mostly related with C/N ratio, with a marked difference between grasses and leguminous. In this sense, the objective of this study was to evaluate the biomass production and macronutrient contents and accumulation, decomposition, and nutrient release from straw of millet (Pennisetum typhoides (Burm. Stapf and millet - jack - bean (Canavalia ensiformes (L. DC. intercropping, under field conditions, under common bean, sown in August (winter/spring. Decomposition and nutrient release was determined in nylon bags (0.2 x 0.2 m, 1 mm mesh filled with straw quantities according to the area of the bag. The experimental design was randomized blocks with four replications in split plot arrangement. The straws represented the plots and the subplots evaluation periods (0, 8, 16, 24, 40, 56, and 72 days. The residues were dried to constant weight in a forced-air oven at 65 ºC to determine the remaining dry matter, then ground and sent to a laboratory to analyze macronutrient contents. Based on the contents and remaining dry matter amounts, the remaining nutrient amounts were determined, expressed in relation to the initial amount. Non-linear models were fit to the values, choosing the best adjustment in each case. Biomass quantity, N and Ca contents and cycling of nutrient quantities was greatest in the intercropping straw. The decomposition and nutrient release speeds were also highest in millet - jack - bean intercropping straw.

  3. Frequency-domain and Time-domain Motion Response Analysis of Mat-supported Jack-up Platform Positioning Process%沉垫自升式平台就位过程运动响应频域与时域分析

    Institute of Scientific and Technical Information of China (English)

    张兆德; 王玉红; 陈伟

    2016-01-01

    Considering the fact that the 4-leg anchor chains are floating during the mat-supported jack-up platform positioning process, the influence of wind, wave and current may induce 6 DOF motion responses of the platform. If the responses are too large, the normal platform installation will be disturbed, even its safety would be hazarded. Based on 3D potential theory and Morison equation, the platform motion responses during positioning process are analyzed respectively in the frequency domain and time domain using SESAM, a powerful hydrodynamic calculation analysis software. The anchor line strength is also checked based on the line tension time history curve. The result shows that the wave incoming direction and period have large influence on the platform motion, and the pitch and roll motions are more sensitive to the wave incoming direction; the platform motion response in time-domain considering the interaction between platform and anchor lines is close to the maximum value of short term prediction in the frequency domain; the platform has excellent motion performance under this condition, the frequency-domain and time-domain results can both meet the operation requirements, and the tension in the anchor lines can meet the strength requirement.%针对沉垫自升式平台在下放过程中四角系有锚链且处于漂浮状态,在风、浪、流的作用下会产生六个自由度的运动响应,若响应过大,会影响平台的正常安装甚至危及平台安全。采用三维势流理论和Morison公式,运用大型水动力计算分析软件 SESAM,分别在频域和时域范围内对平台就位过程的运动响应进行了分析,并通过锚链的张力时历曲线对锚链的强度进行校核。结果表明,波浪的入射角和周期对平台运动有很大的影响,且纵摇和横摇对波浪的入射方向更加敏感,时域范围内考虑平台和锚链耦合作用影响下平台的运动响应和频域范围内短期预报的最大

  4. Fitomassa, teor e acúmulo de micronutrientes do milheto, feijão-deporco e guandu-anão, em cultivo solteiro e consorciado = Micronutrient phytomass, levels and accumulation in millet, jack bean and pigeon pea, as sole crops and in intercropping

    Directory of Open Access Journals (Sweden)

    Cícero Monti Teixeira

    2008-10-01

    Full Text Available O consórcio entre gramíneas e leguminosas para produção de palha, no sistema plantio direto, visa conciliar a proteção do solo, por meio da maior durabilidade da gramínea, com a fixação de N e disponibilização mais rápida de nutrientes pela decomposição da leguminosa. Diante disso, instalou-se um experimento para determinar a produção de fitomassa e o teor e acúmulo de micronutrientes do milheto, feijão-de-porco e guandu-anão, em cultivo solteiro enos consórcios da gramínea com as leguminosas, para a produção de palha no plantio direto. O trabalho foi conduzido no campo experimental do Departamento de Agricultura da Universidade Federal de Lavras – Lavras, Estado de Minas Gerais. O delineamento foi o deblocos casualizados, com sete tratamentos, para os teores das espécies em cultivo solteiro e consorciado e cinco tratamentos para produção de fitomassa e acúmulo de micronutrientes, comquatro repetições. Apenas o guandu-anão solteiro apresentou menor produção de fitomassa fresca e seca, com os demais tratamentos produzindo, em média, 12,361 e 2,854 t ha-1 de fitomassa fresca e seca, respectivamente. Houve diferenças significativas para os teores de B, Cu e Zn e para os acúmulos de todos os micronutrientes avaliados. As leguminosas apresentaram maiores teores de B e o milheto, maiores teores de Cu e Zn. De forma geral, o consórcio entremilheto e feijão-de-porco apresentou os maiores acúmulos de micronutrientes.Intercropping leguminous with gramineous crops for straw production in no-tillage systems aims to conciliate soil protection(through greater durability of gramineous crops with nitrogen fixation and faster micronutrient availability (through leguminous decomposition. Therefore, an experiment was conducted withthe intention of evaluating phytomass production as well as micronutrient levels and accumulation in millet (Pennisetum typhoides (Burm. Stapf, jack bean (Canavalia ensiformes (L. DC., and pigeon

  5. Keats et de Kooning : Pour un romantisme expressionniste abstrait ou la mise en image de l’épitaphe ‘Here lies one whose name was writ in water’: Keats and de Kooning or the abstract expressionist vision of a Romantic epitaph

    Directory of Open Access Journals (Sweden)

    Caroline Bertonèche

    2007-01-01

    Full Text Available The article explores the comparative dialectic between John Keats’s choice of a visual epitaph, theatrically staged as a fluid, evanescent metaphor of poetic identity in relation to Romantic writing, and Willem de Kooning’s late awareness and expressionist interpretation of it. The modernity of Keats’s epitaphic imagery seemed to have been an uncanny preamble to de Kooning’s gestural art or pictorial pantomimes on the themes of impermanence and forgetfulness, memory and death. Close in many other ways, despite chronological and geographical differences, the two inspired artists meet around their creative intermingling of the picturesque and the poetic: the rhythmic liquidity, the verse schemes, the chiaroscuros, the ‘dripping’ technique, the ‘erasures’, the fading colours… Keats’s strangely melancholic but also deeply ironic and contrasted lyricism meets de Kooning’s mixed style of painting, torn as it is between the realms of tradition and novelty, of figurative and abstract art. A writer and a reader, an indolent poet and an ‘action painter’, they are, above all, or aspire to be, especially with regard to this mysterious conception and meaningful depiction of an epitaph, immortal artists as well as enlightened visionaries.

  6. Ezra Pound’s Hero-Worship in The Cantos%从《诗章》看庞德的英雄崇拜情结

    Institute of Scientific and Technical Information of China (English)

    叶艳; 申富英

    2014-01-01

    《诗章》中庞德把史诗英雄奥德修斯作为贯穿诗篇始终的原型人物,传达了诗人庞德“英雄”救世的理想。神话中的英雄原型的不同侧面---返乡的航海者、有勇有谋的行动者、秩序的创建者及坚定的追寻者“置换变形”为诗篇中的汉诺、马拉泰斯塔、亚当斯和杰斐逊、墨索里尼以及诗人自己等历史和现实中的“英雄”。他们都是庞德心目中与奥德修斯原型一脉相承的“奋力走出愚昧走向真知”的精神的化身,表达了庞德的“英雄崇拜”情结。%With the epic hero Odysseus as a prototypical personality running through the whole poem, The Cantos makes an expression of Pound’s ideal of saving the world by heroes. Various aspects of the hero Odysseus in Greek mythology, i. e. the Voyager of Nostos, the Man of Action, the Order-Constructor, and the Unwavering Seeker, is metamorphosed into historical or contemporary figures such as Hanno, Malatesta, Adams and Jefferson, Mussolini, and the poet himself in The Cantos. The relationship between these "heroic"figures and Odysseus reveals Pound’s"hero-worship complex" as well as the inherited spirit of"struggling upward out of ignorance into the clear light of philosophy" in Pound’s mind’s eye.

  7. Ethics of Cultural Translation: Ezra Pound and Walter Benjamin%文化翻译的伦理:庞德与本雅明

    Institute of Scientific and Technical Information of China (English)

    金英敏

    2014-01-01

    瓦尔特·本雅明认为,翻译服务于建立语言之间隐秘的互利关系的宏伟目标.在本雅明看来,理想的翻译应该是透明的,能够以直译的方式更充分地彰显原作的光芒,而当直译变得僵化、成为语言的牢笼时,翻译又需要遵守一条原则,即忠实于语言流的自由.本文的目的正是要探讨庞德的诗歌话语如何传达本雅明关于译者任务的见解,揭示庞德对不同文化的改造如何展示文化翻译的伦理.本文认为,以“居中”或“缝隙”形式跨越“不可译性”的核心在于能够借助于文化翻译诗学来揭示其可见性和可复现性,译者需要基于相互尊重和对等的原则制造适当的距离和自由的语言置换以建立文化翻译的伦理.

  8. A Comparison of Confucian Analects Translated by James Legge and Ezra Pound%理雅各、庞德《论语》译本比较

    Institute of Scientific and Technical Information of China (English)

    王辉

    2004-01-01

    庞德的《论语》译本脱胎于理雅各的学者型译本却又与之迥然不同.本文对比分析两位译者的翻译目的、解经方法和行文风格,说明两个译本的特色及成因.

  9. A comparative analysis of ezra pound’s in a station of the metro and t.s. Eliot’s the love song of j. Alfred prufrock

    Directory of Open Access Journals (Sweden)

    MAHRUKH BAIG

    2013-06-01

    Full Text Available Pound and Eliot’s satiric criticism on the new morality of the modern world is skillfully achieved in their famous poems, “In a Station of the Metro” and “The Love Song of J. Alfred Prufrock”. This research paper is aimed at a comparative analysis of these poems, with particular regards to their thematic concerns and stylistic features.

  10. 浅论庞德《诗章》中的汉字%The Chinese Characters in Ezra Pound’s The Cantos

    Institute of Scientific and Technical Information of China (English)

    龙宇

    2015-01-01

    Pound was greatly influenced by oriental cultures, including the Chinese culture, so some Chinese characters with their profound connotations are found in many places in his The Cantos. The paper seeks to expound the role of these Chinese characters in helping to form Pound’s poetics and in presenting the Confucian ideas to the West.%诗人庞德深受东方文化的影响,他的《诗章》中随处可见中国汉字。在庞德眼中,汉字是诗化的语言,在诗歌创作方面给了他许多启示。从意象说到漩涡说,再到意符方法,无不反映出庞德对中国汉字和古诗的发掘与吸收。庞德还借助汉字独有感染力,以期达到向西方世界传达儒家思想的目的。

  11. Confucian Thoughts in The Cantos of Ezra Pound%《比萨诗章》中的儒家思想

    Institute of Scientific and Technical Information of China (English)

    王贵明

    2001-01-01

    庞德的是以中国儒家思想为基础表现社会文化历史重大主题的伟大诗篇.本文旨在通过分析中庞德所引述的儒家经典章句及其引用的汉字在诗中的意义,来阐述诗人表达思想情感和加强诗歌艺术表现力的独特方式,进而阐明中国文化使更具有哲理和诗学意义,中国文化对庞德的道德思想情感和文学创作,乃至对整个美国诗歌的发展具有重要影响.

  12. A Comparative Study of the Translated Versions of Song You Ren by Ezra Pound and Qiu Kean-From the Perspective of Functional Grammar

    Institute of Scientific and Technical Information of China (English)

    WANG Jing

    2013-01-01

    As one genre of literature, poetry is the elite in both Chinese language and its culture. With its unique characteristics of metrical and form regulations and the beauty of its simplicity and conciseness, Chinese Tang poetry is one of the brightest pearls in the world literature treasury.Translating as a purposeful activity was originated from the functionalist approaches to translation. From the perspective of functional grammar, this thesis attempts to study two translation versions of Song You Ren written by Li Bai. More emphasis has been put on the similarities and differentiations of the textual analysis. Through the analysis and compari-son between the two translation versions, it is found that functional grammar is not only helpful to have a deep understanding of the discourse, but will also throw some light upon the practice of translation.

  13. The New York Review of Books : (1998, 14. mai), nr. 8 : [ülevaade] / vahendanud Anne Lange

    Index Scriptorium Estoniae

    1998-01-01

    Ka John Keatsi käsitlusest: Nicholase Roe' 'John Keats and the culture of dissent' ja Andrew Motioni 'Keats : a biography'; Nadine Gordimer romaanist 'The house of gun'; Franz Kafka 'Lossi' uustõlkest inglise keelde

  14. The New York Review of Books : (1998, 14. mai), nr. 8 : [ülevaade] / vahendanud Anne Lange

    Index Scriptorium Estoniae

    1998-01-01

    Ka John Keatsi käsitlusest: Nicholase Roe' 'John Keats and the culture of dissent' ja Andrew Motioni 'Keats : a biography'; Nadine Gordimer romaanist 'The house of gun'; Franz Kafka 'Lossi' uustõlkest inglise keelde

  15. The Features of Ezra Pound's Vorticism Idea——An Analysis of Pound' s Translation "Among the Flowers is a Pot of Wine"%埃兹拉·庞德漩涡主义思想的特点——以Ezra Pound英译《月下独酌》为例

    Institute of Scientific and Technical Information of China (English)

    马金苗

    2015-01-01

    埃兹拉·庞德不但是一位美国著名诗人,也是一位非常热爱中国诗的诗人,受中国古典诗歌的影响,他翻译的中国诗歌,摆脱了英国维多利亚时期的诗歌传统,开创了美国现代诗歌的先河.庞德翻译诗歌的思想除了早期众所周知的意象主义思想外,还有后来他对意象主义思想进行修正,形成的漩涡主义思想.漩涡主义思想的观点主要体现在以下三个方面:第一动词的使用,包括大量使用动词和避免使用表状态的系动词be;第二避免使用形容词等主观评论性词语;第三静态意象和动态意象的使用.文章通过对比分析庞德和英国汉学家Arther Waley英译李白的《月下独酌》,来说明庞德在翻译诗歌时的漩涡主义思想.文章研究目的是说明中国古典诗歌对庞德漩涡主义思想形成的影响,以及庞德对20世纪美国现代诗歌创立所做出的巨大贡献.

  16. Approaches to Ezra Pound in Modem China: a Case Study on Jiang Hongxin's A Study on Ezra Pound%今天我们如何研究庞德?——以蒋洪新《庞德研究》为个案

    Institute of Scientific and Technical Information of China (English)

    林玮

    2016-01-01

    中国学界的庞德研究长期存在简单化的刻板印象.随着文论的多元化,这种印象需要被新的研究范式取代:将庞德及其话语实践视为一个与生活相关的完整领域,充分掌握与庞德处同一文化背景下的研究成果,自觉将研究者的文化身份介入评述,使研究能够回应研究者自身的时代问题.对此,蒋洪新《庞德研究》可谓“范本实践”.

  17. 济慈和坡在浪漫主义思想,技巧和主题上的不同%Keats and Poe: Their Differences in Romantic Ideas, Techniques and Themes

    Institute of Scientific and Technical Information of China (English)

    周燕

    2013-01-01

    英国诗人约翰·济慈和美国诗人爱伦·坡都是世界文学史上的著名浪漫主义诗人,但他们的浪漫主义思想,诗歌创作技巧和诗歌主题各有特色.通过比较阅读分析两位诗人的一些代表性诗歌,可以对其诗歌特色有更加深入的理解.

  18. First Report of Eurycoma longifolia Jack Root Extract Causing Relaxation of Aortic Rings in Rats

    Science.gov (United States)

    2016-01-01

    Although Eurycoma longifolia has been studied for erectile function, the blood pressure- (BP-) lowering effect has yet to be verified. Hence, this study aims at investigating the BP-lowering properties of the plant with a view to develop an antihypertensive agent that could also preserve erectile function. Ethanolic root extract was partitioned by hexane, dichloromethane (DCM), ethyl acetate, butanol, and water. The DCM fraction, found to be potent in relaxing phenylephrine- (PE-) precontracted rat aortic rings, was further purified by column chromatography. Subfraction DCM-II, being the most active in relaxing aortae, was studied for effects on the renin-angiotensin and kallikrein-kinin systems in aortic rings. The effect of DCM-II on angiotensin-converting enzyme (ACE) activity was also evaluated in vitro. Results showed that DCM-II reduced (p < 0.05) the contractions evoked by angiotensin I and angiotensin II (Ang II). In PE-precontracted rings treated with DCM-II, the Ang II-induced contraction was attenuated (p < 0.05) while bradykinin- (BK-) induced relaxation enhanced (p < 0.001). In vitro, DCM-II inhibited (p < 0.001) the activity of ACE. These data demonstrate that the vasodilatory effect of DCM-II appears to be mediated via inhibition of Ang II type 1 receptor and ACE as well as enhancement of Ang II type 2 receptor activation and BK activity.

  19. Permeability Enhancement in Enhanced Geothermal System as a result of Hydraulic Fracturing and Jacking

    Science.gov (United States)

    Jalali, Mohammadreza; Klepikova, Maria; Fisch, Hansruedi; Amann, Florian; Loew, Simon

    2016-04-01

    A decameter-scale in-situ hydraulic stimulation and circulation (ISC) experiment has been initiated by the newly-founded Swiss Competence Centre for Energy Research - Supply of Electricity (SCCER-SoE) at Nagra's Grimsel Test Site (GTS) as a part of the work-package WP1 of the Deep Underground Laboratory (DUG-Lab) initiative. The experiment area is situated in the southern part of the GTS in a low fracture density volume of the Grimsel granodiorite. The hydraulic properties of the granitic rock mass are supposed to be similar to those expected in the crystalline basement of the alpine foreland where deep enhanced geothermal systems might be developed in future. The main objectives of the multi-disciplinary experiment are to provide a high resolution pre- and post-stimulation characterization of fracture permeability and connectivity, to investigate patterns of preferential flow paths, to describe the pressure propagation during the stimulation phases and to evaluate the efficiency of the fracture-matrix heat exchanger. A comprehensive test & monitoring layout including a fair number of boreholes instrumented with a variety of sensors (e.g. pressure, strain, displacement, temperature, and seismic sensors) is designed to collect detailed data during multiple hydraulic stimulation runs. The diffusion of fluid pressure is expected to be governed mainly by the properties and geometry of the existent fracture network. The hydraulic transmissivity of fractures are in the range of 10-7 to 10-9 m2/s whereas the matrix rock has a very low hydraulic conductivity (K ˜ 10-12 m/s). As part of the stress measurement campaign during the pre-stimulation phase of the ISC experiment, a series of hydraulic fracturing (HF) and hydraulic tests in pre-existing fractures (HTPF) were conducted. The tests were accompanied by micro-seismic monitoring within several observation boreholes to investigate the initiation and propagation of the induced fractures. Together with results from over-coring tests, these data were used to conclude on the local stress orientation and stress magnitudes. The hydraulic response of the rock mass under hydro-mechanical perturbations was investigated by conducting various hydraulic packer tests (e.g. pulse, constant rate and constant head) in multiple hydraulically isolated borehole sections before and after the stress measurements. Hydraulic testing of borehole sections which were previously fracked (during HF tests) didn't show a distinct increase in permeability. For the tested borehole sections without natural fractures, this can be explained by the fact that hydraulic fracturing was dominated by fracture normal opening (mode I). In this case, the implemented pressure range (less than 2 MPa) during the hydraulic packer tests was not sufficient to re-open the tensile fractures and permeability would remain unchanged. Conversely, in borehole sections with pre-existing ductile and/or brittle fractures and where HTPF-tests were conducted, the permeability increased by two orders of magnitude, from 10-11 m2/s to˜10-9 m2/s (results of hydraulic tests pre and post HTPF). These findings could be explained by permanent enhancement of permeability as a result of shear dilation of existing structures. Considering the efficiency of the hydraulic stimulation process observed at low differential injection pressures, even more significant permeability enhancement is expected during the upcoming stimulation experiments.

  20. A Comparison Between Measured and Predicted Hydrodynamic Damping for a Jack-Up Rig Model

    DEFF Research Database (Denmark)

    Laursen, Thomas; Rohbock, Lars; Jensen, Jørgen Juncher

    1996-01-01

    methods.In the comparison between the model test results and the theoretical predictions, thehydro-dynamic damping proves to be the most important uncertain parameter. It is shown thata relative large hydrodynamic damping must be assumed in the theoretical calculations in orderto predict the measured...