Asymmetric Michael addition of aldehydes to nitroolefins catalyzed by L-prolinamide derivatives using phenols as co-catalysts

The asymmetric Michael addition of aldehydes to nitroolefins was investigated using L-prolinamide derivatives of 2-(2'-piperidinyl)pyridine as catalyst and a variety of phenols as co-catalyst. Extensive screening toward the effect of prolinamides, phenols, and solvents on this transformation revealed that a combination of (S)-2-(2'-piperidinyl)pyridine-derived trans-4-hydroxy-L-prolinamide 2c, (S)-1,1'-bi-2-naphthol, and dichloromethane was a promising system. This system was shown to be amenable to a rich variety of aldehydes and nitroolefins and afforded the nitroaldehyde products with excellent yield, enantiomeric excess (up to 99%) and diastereoselectivity ratio (up to 99/1), even in the case of 1 mol % catalyst loading and 1.5 equiv of aldehydes.

Facile synthesis and characterization of hyperbranched poly(ether amide)s generated from Michael addition polymerization of in situ created AB(2) monomers

A new straightforward strategy for synthesis of novel hyperbranched poly (ether amide)s from readily available monomers has been developed. By optimizing the reaction conditions, the AB(2)-type monomers were formed dominantly during the initial reaction stage. Without any purification, the AB(2) intermediate was subjected to further polymerization in the presence (or absence) of an initiator, to prepare the hyperbranched polymer-bearing multihydroxyl end-groups. The influence of monomer, initiator, and solvent on polymerization and the molecular weight (MW) of the resultant polymers was studied thoroughly. The MALDI-TOF MS of the polymers indicated that the polymerization proceeded in the proposed way. Analyses of H-1 NMR and C-13 NMR spectra revealed the branched structures of the polymers obtained. These polymers exhibit high-moderate MWs and broad MW distributions determined by gel permeation chromatography (GPC) in combination with triple detectors, including refractive index, light scattering, and viscosity detectors. In addition, the examination of the solution behavior of these polymers showed that the values of intrinsic viscosity [eta] and the Mark-Houwink exponent a were remarkably lower compared with their linear analogs, because of their branched nature.

Thia-michael addition reactions in water using 3-[Bis(alkylthio) methylene]pentane-2,4-diones as odorless and efficient thiol equivalents

3-[Bis(ethylthio)methylene]pentane-2,4-dione (1a) and 3-[bis(benzylthio)methylene]pentane-2,4-dione (1b) have been investigated as non-thiolic and odorless thiol equivalents in thia-Michael addition reactions. In the presence of aqueous p-dodecyl benzenesulfonic acid (DBSA), compound (1) was cleaved and the generated thiols underwent facile conjugate addition to alpha,beta-unsaturated ketones 2 in-situ, affording the corresponding beta-keto sulfides (3) in good yields.

含分子内氢键的苯硫酚在水相中的Michael���成反应

苯硫酚的巯基是一个较强的亲核基团 [1] ,对 α,β-不饱和双键的 Michael���成反应已有报道 [2～ 4 ] .但是当巯基的邻位存在与其形成氢键的基团时 ,如果按文献条件进行反应 ,或者反应无法进行 [5,6 ] ,或者要使用反应条件苛刻的丁基锂 [6 ] ,或者使用吡啶等毒性较大的反应溶剂 [2～ 9] ,而且产率较低 .本文选择了饱和碳酸氢钠水溶液 /n-四丁基硫酸氢铵的反应条件 ,探讨了该类化合物在此条件下的 Michael���成反应 .以 3个含分子内氢键的苯硫酚 (邻羟基苯硫酚、邻氨基苯硫酚和邻羧基苯硫酚 )为起始物 ,对丙烯酸乙酯和丙烯腈进行了 Michael���成反应 .本方法的特点在于不使用特殊的有机溶剂 ,反应在水相[10～ 12 ] 中进行 ;反应速度快 ,收率高 ,无巯基偶联 [13] 副产物生成 .反应式如 Scheme1所示 .RSH1 a— 1 c+ OONa HCO3,H2 On-Bu4 N HSO4RSOO2 a— 2 cRSH1 a— 1 c+ NC Na HCO3,H2 On-Bu4 N HSO4RSCN3 a— 3 ca. R =OH;b. R =N H2 ;c. R...

Competitiveness in a globalised world: Michael Porter on the microeconomic foundations of the competitiveness of nations, regions, and firms.

In this paper, we provide the text of an interview with Professor Michael Porter discussing his research and ideas relating to the microeconomic foundations of global competitiveness. The discussion provides a microeconomic perspective on some of the key issues relating to recent research on competitiveness, productivity, clusters, US economic leadership, economic growth and development.

Competitive advantage revisited: Michael Porter on strategy and competitiveness.

Strategic management is constantly evolving as both an academic discipline and as a reflection of management practice. This article, based on a recent interview with Michael Porter, assesses his contribution to the development of the discipline in the context of the advances that have taken place since the publication of his seminal work Competitive Strategy in 1980. The authors conclude that Porter has made major lasting contributions to strategy, increasing both its academic rigor and its accessibility to managers. The article and interview place Porter's work at the center of the development of strategic management in terms of the provision of practical analytical frameworks, transforming it into a recognized and recognizable field of academic study and management practice. This feat of transformation has not been equaled before or since, so that 25 years after his first seminal contribution, Porter's work continues to provide remarkable insights into the nature of competition and strategy.

Qualifying Cosmopolitanism? Solidarity, Criticism, and Michael Walzer's 'View from the Cave'

Erskine, Toni, 'Qualifying Cosmopolitanism? Solidarity, Criticism, and Michael Walzer's 'View from the Cave'', International Politics (2007) 44(1) pp.125-149 RAE2008

Robert Heinich, Michael Molenda, James D. Russell, Sharon E. Smaldino, Instructional Media and Technologies for Learning, Prentice-Hall, Inc., Englewood Cliffs, New Jersey 1996, ss. 446. Steven Hackbarth, The Educational Technology Handbook. A Comprehensive Guide, Educational Technology Publications Inc., Englewood Cliffs, New Jersey 1996, ss. 351

Recenzje i sprawozdania z książek

Missionary heroes : stories of heroism on the mission field / edited by Charles D. Michael.

http://www.archive.org/details/missionaryheroes00unknuoft

Revisiting Irish poetic modernisms

This thesis discusses Irish Modernist poetry written between 1905 and 1970, specifically the poetry of Joseph Campbell (1879-1944), Thomas MacGreevy (1893-1967), Denis Devlin (1908-1959) and Brian Coffey (1905-1995). All four poets have been largely neglected in criticism until a growth of interest encouraged by Michael Smith and Trevor Joyce’s New Writers’ Press during the 1970s. J.C.C. Mays, Stan Smith, Susan Schreibman, Terence Brown, Patricia Coughlan and Alex Davis published subsequent critical support during the ‘80s and ‘90s. My research aims to highlight poetry previously omitted from the canon of Irish literature, those with connections to British or continental European literary movements as well as poetry by women writers and writers from the North. Part of this exploration of Irish Poetic Modernisms involves an investigation of intersections between poetic modernisms and Irish war poetry and of depictions of Irish masculinity in the poetry of Devlin and Coffey. My discussion of Campbell’s poetry focuses on links between the early regional modernism of his poetry and later Irish modernist poetry, including his participation in the Ulster Literary Theatre, with the Literary Revival community in Dublin and his association with the proto-Imagist movement in London. My examination of connections between Irish war poetry and Irish modernism allows me to discuss the writing of several underrecognized Irish poets who are contemporaries and near contemporaries of the main subjects of my thesis. Thomas MacGreevy’s poetry is the most clear case study of the links between Irish modernist poetry and poetry about Ireland’s participation in the Great War. MacGreevy’s writing reveals his multiple allegiances: he both elegizes and challenges the increasing cultural inhibitions of Free State Ireland. Denis Devlin’s poetic portrayals of Ireland reveal his rejection both of the Literary Revival’s fascination with Celticism and of Dublin’s literary community while upholding tradition poetic gender roles. My research explores representations of masculinity and Irish politics, including heroic masculine imagery, in the long poems of Devlin and Coffey. My discussion of Brian Coffey considers the importance of the figure of the “poet as maker” to his writing and his relationship with Ireland during his long writing career. I also consider his role as the editor and executor of Devlin’s literary estate and the impact that had on both the latter’s posthumous reputation and Coffey’s later writing.

Deer forests, game shooting and landed estates in the South West of Ireland, 1840 - 1970

This thesis is concentrated on the historical aspects of the elitist field sports of deer stalking and game shooting, as practiced by four Irish landed ascendancy families in the south west of Ireland. Four great estates were selected for study. Two of these were, by Irish standards, very large: the Kenmare estate of over 136,000 acres in the ownership of the Roman Catholic Earls of Kenmare, and the Herbert estate of over 44,000 acres in the ownership of the Protestant Herbert family. The other two were, in relative terms, small: the Grehan estate of c.7,500 acres in the ownership of the Roman Catholic Grehan family, and the Godfrey estate of c.5,000 acres, in the ownership of the Protestant Barons Godfrey. This mixture of contrasting estate size, owner's religions, nobleman, minor aristocrat and untitled gentry should, it is argued, yield a diversity of the field sports and lifestyles of their owners, and go some way to assess the contributions, good or bad, they have bequeathed to modern Ireland. Equally, it should help in assessing what importance, if any, applied to hunting. In this context, hunting is here used in its broadest meaning, and includes deer stalking and game shooting, as well as hunting with dogs and hounds on foot and horseback. Where a specific type of hunting is involved, it is so described; for example, fox hunting, stag hunting, hare hunting. Similarly, the term game is sometimes used in sporting literature to encompass all species of quarry killed, and can include deer, ground game (hares and rabbits), waterfowl, and various species of game birds. Where it refers to specific species, these are so described; for example grouse, pheasants, woodcork, wild duck, etc. Since two of these estates - the Kenmare and Herbert - each created a deer forest, unique in mid-19th century Ireland, they form the core study estates; the two smaller estates serve as comparative studies. And, equally unique, as these two larger estates held the only remnant population of native Irish red deer, the survival of that herd itself forms a concomitant core area of analysis. The numerary descriptions applied to these animals in popular literature are critically reassessed against prime source historical evidence, as are the so-called deer forest 'clearances'. The core period, 1840 to 1970, is selected as the seminal period, spanning 130 years, from the creation of the deer forests to when a fundamental change in policy and administration was introduced by the state. Comparison is made with similar estates elsewhere, in Britain and especially in Scotland. Their influence on the Irish methods and style of hunting is historically examined.

Embodied sexualities: Exploring accounts of Irish women's sexual knowledge and sexual experiences, 1920-1970

This chapter explores the ways in which sexuality has been understood, embodied and negotiated by a cohort of Irish women through their lives. It is based on qualitative data generated as part of an oral history project on Irish women’s experiences of sexuality and reproduction during the period 1920–1970.1 The interviews, which were conducted with 21 Irish women born between 1914 and 1955, illustrate that social and cultural discourses of sexuality as secretive, dangerous, dutiful and sinful were central to these women’s interpretative repertoires around sexuality and gender. However, the data also contains accounts of behaviours, experiences and feelings that challenged or resisted prevailing scripts of sexuality and gender. Drawing on feminist conceptualisations of sexuality and embodiment (Holland et al., 1994; Jackson and Scott, 2010), this chapter demonstrates that the women’s sexual subjectivities were forged in the tensions that existed between normative sexual scripts and their embodied experiences of sexual desires and sexual and reproductive practices. While recollections of sexual desire and pleasure did feature in the accounts of some of the women, it was the difficulties experienced around sexuality and reproduction that were spoken about in greatest detail. What emerges clearly from the data is the confusion, anxiety and pain occasioned by the negotiation of external demands and internal desires and the contested, unstable nature of both cultural power and female resistance.

REVOLUTIONARY VIOLIN LITERATURE IN THE TRANSFORMATIVE PERIOD OF THE 20TH CENTURY, 1900-1970

In satisfaction of requirements for a Doctor of Musical Arts degree at the University of Maryland, College Park, three recitals were given consisting of works of the early 21st Century European composers. The works performed on these recitals showcase a variety of compositional styles that explore different qualities of the violin. The purpose of this project was to demonstrate how the war and conflict in Europe and attendant radical cultural and social developments affected these composers. The first recital program includes: Sonata for Violin and Cello and Piece en Forme de Habanera by Maurice Ravel; Op. 30 Mythesfor Violin and Piano by Karol Szymanowski; Concertina for Violin and Piano and Sonata No.2 for Violin Solo by Grazyna Bacewicz. The second recital program consists of: Sonata for Violin and Piano by Leos Janacek; Quartet for the End of Time: movement VIII "Louange a l'Immortalite de Jesus" by Oliver Messiaen; Sonata for Solo Violin by Erwin Schulhoff; and Passacaglia & Fuga for String Trio by Hans Krasa. The third recital highlights the works of Russian composers: Sonata for Violin and Piano Op.134 by Dmitri Shostakovich; and Violin Sonata No.2 in D major Op. 94 by Sergei Prokofiev. These composers represent individual, distinct and fascinating adaptation to events beyond their control as well as their power of transformation. The first recital was performed in collaboration with Hsiang-Ling Hsiao on piano and Gozde Yasar on cello. The second recital was given with Hsiang-Ling Hsiao on piano, Gozde Yasar on cello, and Asli Gultekin Ozek on viola. The third recital was performed with David Ballena on piano. The recitals were recorded on compact discs and are archived within the Digital Repository at the University of Maryland (DRUM).

SAXOPHONE SONATAS 1980-2010

The purpose of this dissertation project identifies contemporary solo saxophone literature, specifically sonatas between the years 1980 and 2010. The overwhelming majority of repertoire written during these thirty years consisted primarily of either multi-movement or through-composed character pieces. By limiting the selected repertoire to sonatas one can still investigate the breadth of the literature that has helped validate the saxophone in the realm of classical music in a format that has seemingly fallen out of favor with composers. The saxophone had developed a unique voice by the middle of the twentieth century in both Europe and in the United States. European composers such as Claude Debussy, Florent Schmidt, Jacques Ibert, Darius Milhaud, Alexander Glazounov, Erwin Schulhoff and Bernard Heiden recognized the potential and beauty of the instrument, while the saxophone had found quite a different niche in vaudeville, jazz, and military bands in the United States. If not for the dynamic performances by concert saxophonist such as Marcel Mule, Sigurd Rascher, Jean-Marie Londeix, Daniel Deffayet, Cecil Lesson, Larry Teal, Eugene Rousseau, Fredrick Hemke and Donald Sinta, the timbral possibilities and technical virtuosity of the saxophone would not have been discovered. The awe inspiring performances by these soloists led to the commissioning of a multitude of works by composers looking to expand the sonic possibilities of this relatively new instrument. Through the 1970's American composers such as Leslie Bassett, Paul Creston, Henry Brant, Robert Muczynski, and Karel Husa were writing significant works for the saxophone, while European composers such as IngolfDahl, Edison Denisov, Alfred Desenclos, Henri Tomasi and Marius Constant were each making their own contributions, all leading to a significant quantity of repertoire that met the quality demands set by the performers. The compositions chosen for this dissertation project were selected after numerous performance, pragmatic, programming and pedagogical considerations were taken into account. The three recitals occurred on: March 7, 2010, December 10, 2010 and May 1, 2011 in either the Gildenhorn Recital Hall or Lecture Hall 2100.