13,494 research outputs found
Becker-Gottlieb Transfer
No full textThe Becker-Gottlieb transfer is an S-map from the base to the total space of a fibration. It thus induces homomorphisms on homology and cohomology which are also called Becker-Gottlieb transfers. Suppose that E p − → B is a Hurewicz fibration whose fibre F is homotopy equivalent to a compact CW complex F. The Becker-Gottlieb transfer is an S-map τ: B → E, which means that there is a map τ:Σ N B → Σ N E defined between the N-th suspensions of B and E for some N. Thus τ induces a homomorphism τ ∗ on any homology theory and τ ∗ on any cohmology theory. We obtain striking relations on homology and cohomology respectively: (1) p ∗ ◦ τ ∗ = χ(F), τ ∗ ◦ p ∗ = χ(F) where χ(F) denotes multiplication by the Euler-Poincare number of F. The Becker-Gottlieb transfer was discovered in the mid seventies. It generalizes the transfer for finite covering spaces (F is a finite set of points), which had been well-known since the forties and which was a generalization of a group theory transfer from the twenties. Since the discovery of the Becker-Gottlieb transfer, other transfers have been discovere
The MATERIAL framework: Modeling and AuTomatic code Generation of Edge Real-TIme AppLications under the QNX RTOS
No full textModern edge real-time automotive applications are becoming more complex, dynamic, and distributed, moving away from conventional static operating environments to support advanced driving assistance and autonomous driving functionalities. This shift necessitates formulating more complex task models to represent the evolving nature of these applications aptly. Modeling of real-time automotive systems is typically performed leveraging Architectural Languages (ALs) such as Amalthea, which are commonly used by the industry to describe the characteristics of processing platforms, operating systems, and tasks. However, these architectural languages are originally derived for classical automotive applications and need to evolve to meet the needs of next-generation applications. This paper proposes an automatic framework for the modeling and automatic code generation of dynamic automotive applications under the QNX RTOS. To this end, we extend Amalthea to describe chains of communicating tasks with multiple operating modes and to consider the QNX's reservation-based scheduler, called APS, which allows providing temporal isolation between applications co-located on the same hardware platform. Finally, an evaluation is presented to compare different implementation alternatives under QNX that are automatically generated by our code generation framework.</p
Chrysotoxum latifasciatum Becker 1921
No full text<p> <b> <i>Chrysotoxum latifasciatum</i> Becker, 1921</b> </p> <p> <b>Material examined:</b> 1 male; 9- 16.6.1989. – 1 male; 31.6- 6.7.1989. – 2 males; 7- 14.7.1989. – 1 male; 14- 21.7.1989. – 1 female; 28.7- 4.8.1989. – 1 female; 1- 6.6.1990.</p> <p> <b>Guild:</b> Zoophagous (larva undescribed).</p>Published as part of <i>Lorenzo, Daniel, Ricarte, Antonio, Nedeljković, Zorica, Nieves-Aldrey, José Luis & Marcos-García, Maria Ángeles, 2020, Hoverflies (Diptera: Syrphidae) of El Ventorrillo Biological Station, Madrid province, Spain: a perspective from a late twentieth century inventory, pp. 393-412 in Revue suisse de Zoologie 127 (2)</i> on page 397, DOI: 10.35929/RSZ.0029, <a href="http://zenodo.org/record/5743912">http://zenodo.org/record/5743912</a>
Jure divino: a satyr. [electronic resource] : The second book. By the author of the True-born-Englishman.
No full textThe author of the True-born-Englishman = Daniel Defoe.A pirate edition.Foxon,Moore,Electronic reproduction.English Short Title Catalog,Reproduction of original from British Library
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Enterprise portals: addressing the organisational and individual perspectives of information systems
No full textEnterprise portals are being viewed as the next generation application platform of choice, offering benefits over both client/server and thin client arrangements. By providing a mediating layer between the information applications and resources of the organisation and the individuals using them, enterprise portals appear to provide a unique context to allow both the organisational and individual perspectives of information systems to be addressed. This study seeks to examine these often competing perspectives of information systems by using an exploratory empirical survey to investigate the actual deployment of enterprise portals within a range of different organisations. It is found that both the individual and organisational benefits that enterprise portals can offer appear to have been recognised, and coherent sets of services addressing each of these perspectives are being developed. Consistent with diffusion and acceptance of technology models, organisations appear to be commencing their portal developments with services that will ensure utilisation by individuals, and are subsequently seeking to realise organisational level benefits
Ecological conditions predict the intensity of Hendra virus excretion over space and time from bat reservoir hosts
No full textBecker, Daniel J., Eby, Peggy, Madden, Wyatt, Peel, Alison J., Plowright, Raina K. (2022): Ecological conditions predict the intensity of Hendra virus excretion over space and time from bat reservoir hosts. Ecology Letters CLXVI (CLXVI): 1-14, DOI: 10.1111/ele.14007, URL: http://dx.doi.org/10.1111/ele.1400
All that is evident is suspect readings from the Oulipo 1963-2018
No full textPresidential foreword / Paul Fournel -- Editor's note / Ian Monk -- Another editor's note / Daniel Levin Becker -- Slept cried / Raymond Queneau -- Lecture on the Oulipo at Cerisy-la-Salle / Jacques Duchateau -- The atheist organist / Latis -- Correspondence with the Oulipo / Marcel Duchamp -- Letter to the Oulipo / Albert-Marie Schmidt -- Letter to Jacques Roubaud & Georges Perec / Claude Berge -- Idea box / François Le Lionnais -- The N+7 method / Jean Lescure -- Alphabet for Stämpfli / Georges Perec -- How I wrote one of my books / Italo Calvino -- Bilingual palindromes / Luc Étienne -- Letter to Valérie Guidoux / Stanley Chapman -- Literary lunatics / André Blavier -- Circular reflections from an immobile insect / Jean Queval -- Fifty oscillatory poems / Michèle Métail -- Ebony cup and ivory ball / Marcel Bénabou -- How to tell a story / Jacques Bens -- Invisible libraries / Paul Braffort -- The last minutes / Noël Arnaud -- Gesture / Michelle Grangaud --Rules of the game / Oskar Pastior -- A few musketeers / Hervé Le Tellier -- Frieze of the Paris Métro / Pierre Rosentiehl -- Poem of the Paris Métro / Jacques Jouet -- Sainte Catherina / Harry Mathews -- The republic of Beau-Locks / Jacques Jouet -- We did everything / Ian Monk -- On the end of time / François Caradec -- Novels / Paul Fournel -- N-evol / Anne F. Garréta -- Invisible cities: Lille / Olivier Salon -- Arrangements / Jacques Roubaud -- 99 preparatory notes to 00 preparatory notes / Frédéric Forte -- Metric poetry / Pablo Martín Sánchez -- Eodermdromes / Étienne Lécroart -- Narrative sestinas / Harry Mathews -- Counting on you / Étienne Lécroart -- Liquid tales / Hervé Le Tellier -- A very busy year / Bernard Cerquiglini -- Shark poem / Olivier Salon -- Brief encounter / Ross Chambers -- Writer's block / Daniel Levin Becker -- ⊂ / Jacques Roubaud -- Our beautiful zeroine / Marcel Bénabou -- The beautiful appetite / Paul Fournel --Northern line / Valérie Beaudouin -- Caroline, October 21, 1935 / Michèle Audin -- Microfictions / E. Berti & P. Martín Sánchez -- Epithalamia / Daniel Levin Becker -- The pitch-drop experiment / Frédéric Forte -- Louise / Clémentine Mélois -- No one remembers / Michèle Audin -- Return(s) / Ian Monk -- An ideal presence / Eduardo Berti -- Acknowledgments -- Approximative index of themes -- Contributor
Benachteiligung gleichgeschlechtlich orientierter Personen und Paare : Studie im Auftrag des Bundesministeriums der Justiz
No full textUnter Mitarb. von D. Becker ; H. Weiß. Juristische Beratung: G. Fischer ; P. Trenk- Hinterberge
Ethnic identity, political identity and ethnic conflict: simulating the effect of congruence between the two identities on ethnic violence and conflict
No full textThis thesis outlines and presents an alternative hypothetical process to the emergence of ethnic conflict. Ethnic conflicts, rather than being dependent upon pre-existing 'ancient hatreds', are instead the result of a congruence between ethnic and political identity which grants individuals the ability to use ethnicity to identify and eliminate political threats. This hypothesis is formed by the examination of three case studies of ethnic conflict: Lebanon, Northern Ireland and Croatia. This hypothesis is then formalised and tested using an agent based simulation in which agent interactions are dependent upon ethnic and political identity and the congruence between the two. As predicted there was a strong positive correlation between how accurately ethnic identity reflected political identity and the level of ethnically motivated violence in the simulation, although the relationship was not linear. Furthermore the effect of a shift in congruence was found to be roughly comparable to the effect of initialising agents with a moderate level of pre-existing ethnic antagonism
Profiling of Soluble Neutral Oligosaccharides from Treated Biomass using Solid Phase Extraction and Liquid Chromatography-Multiplexed Collision Induced Dissociation-Mass Spectrometry
No full textThermochemical pretreatment of cellulosic biomass improves cell wall enzymatic digestibility, while simultaneously releasing substantial amounts of soluble oligosaccharides. Profiling of oligosaccharides released during pretreatment yield information essential for choosing glycosyl hydrolases necessary for cost-effective conversion of cellulosic biomass to desired biofuel/biochemical end-products. In this report we present a methodology for profiling of soluble neutral oligosaccharides released from ammonia fiber expansion (AFEXTM)-pretreated corn stover. Our methodology employs solid phase extraction (SPE) enrichment of oligosaccharides based on porous graphitized carbon (PGC), followed by high performance liquid chromatography (HPLC) separation using a polymeric amine based column (Prevail Carbohydrate ES) and electrospray ionization time-of-flight mass spectrometry (ESI-TOF-MS) in both positive and negative modes. For structural elucidation on the chromatographic time scale, nonselective multiplexed collision-induced dissociation was performed for quasi-simultaneous acquisition of accurate molecular and fragment masses of neutral oligosaccharids in a single analysis. These analyses directly revealed presence of glucans up to degree of polymerization (DP) 22 without side-chain modifications. Additionally, arabinoxylans with DP up to 6 were detected in the pretreated biomass samples (post-enzymatic digestion). All linkages between sugar units in glucans and arabinoxylans were identified to be p-1-4 linkages based on cross-ring fragment masses. Comprehensive profiling of soluble oligosaccharides also demonstrated that arabinoxylan acetylation was reduced by greater than 85% post-AFEXTM treatment.Published version: Vismeh, Ramin, Humpula, James F., Chundawat, Shishir P. S., Balan, Venkatesh, Dale, Bruce E. & Jones, A. Daniel. (2013). Profiling of Soluble Neutral Oligosaccharides from Treated Biomass using Solid Phase Extraction and LC-TOF MS. Carbohydrate Polymers 94(2), 791-799. http://dx.doi.org/10.1016/j.carbpol.2013.02.00
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