scholarly journals Deciphering the mechanism of near-threshold $$J/\psi $$ photoproduction

2020 ◽  
Vol 80 (11) ◽  
Author(s):  
Meng-Lin Du ◽  
Vadim Baru ◽  
Feng-Kun Guo ◽  
Christoph Hanhart ◽  
Ulf-G. Meißner ◽  
...  
Keyword(s):  
Multipole Expansion ◽  
Vector Meson Dominance ◽  
Final State ◽  
Charm Quarks ◽  
Proton Mass ◽  
Minor Contribution ◽  
Intermediate States ◽  
Scattering Lengths ◽  
The One ◽  
A Minor

AbstractThe photoproduction of the $$J/\psi $$ J / ψ off the proton is believed to deepen our understanding of various physics issues. On the one hand, it is proposed to provide access to the origin of the proton mass, based on the QCD multipole expansion. On the other hand, it can be employed in a study of pentaquark states. The process is usually assumed to proceed through vector-meson dominance, that is the photon couples to a $$J/\psi $$ J / ψ which rescatters with the proton to give the $$J/\psi p$$ J / ψ p final state. In this paper, we provide a compelling hint for and propose measurements necessary to confirm a novel production mechanism via the $$\varLambda _c \bar{D}^{(*)}$$ Λ c D ¯ ( ∗ ) intermediate states. In particular, there must be cusp structures at the $$\varLambda _c \bar{D}^{(*)}$$ Λ c D ¯ ( ∗ ) thresholds in the energy dependence of the $$J/\psi $$ J / ψ photoproduction cross section. The same mechanism also implies the $$J/\psi $$ J / ψ -nucleon scattering lengths of order 1 mfm. Given this, one expects only a minor contribution of charm quarks to the nucleon mass.

Use of Different Tissue Thromboplastins in the Control of Anticoagulant-Therapy

1958 ◽  
Vol 02 (05/06) ◽  
pp. 462-480 ◽  
Author(s):  
Marc Verstraete ◽  
Patricia A. Clark ◽  
Irving S. Wright
Keyword(s):  
Prothrombin Time ◽  
Anticoagulant Therapy ◽  
Factor Vii ◽  
Rabbit Brain ◽  
Minor Role ◽  
Rabbit Lung ◽  
Coagulation Mechanism ◽  
Time Test ◽  
The One ◽  
A Minor

SummaryAn analysis of the results of prothrombin time tests with different types of thromboplastins sheds some light on the problem why the administration of coumarin is difficult to standardize in different centers. Our present ideas on the subject, based on experimental data may be summarized as follows.Several factors of the clotting mechanism are influenced by coumarin derivatives. The action of some of these factors is by-passed in the 1-stage prothrombin time test. The decrease of the prothrombin and factor VII levels may be evaluated in the 1-stage prothrombin time determination (Quick-test). The prolongation of the prothrombin times are, however, predominantly due to the decrease of factor VII activity, the prothrombin content remaining around 50 per cent of normal during an adequate anticoagulant therapy. It is unlikely that this degree of depression of prothrombin is of major significance in interfering with the coagulation mechanism in the protection against thromboembolism. It may, however, play a minor role, which has yet to be evaluated quantitatively. An exact evaluation of factor VII is, therefore, important for the guidance of anticoagulant therapy and the method of choice is the one which is most sensitive to changes in factor VII concentration. The 1-stage prothrombin time test with a rabbit lung thromboplastin seems the most suitable method because rabbit brain preparations exhibit a factor VII-like activity that is not present in rabbit lung preparations.

THE ROLE OF ANTHROPONYMS IN THE SEMANTIC FIELD OF ARTISTIC WORKS

2019 ◽  
Vol 2019 (29) ◽  
pp. 66-77
Author(s):  
Lidiya Derbenyova
Keyword(s):  
Literary Work ◽  
Main Theme ◽  
Semantic Field ◽  
New Meanings ◽  
Minor Part ◽  
The One ◽  
A Minor ◽  
And Storage ◽  
Horizon Of Expectations

The article explores the role of antropoetonyms in the reader’s “horizon of expectation” formation. As a kind of “text in the text”, antropoetonyms are concentrating a large amount of information on a minor part of the text, reflecting the main theme of the work. As a “text” this class of poetonyms performs a number of functions: transmission and storage of information, generation of new meanings, the function of “cultural memory”, which explains the readers’ “horizon of expectations”. In analyzing the context of the literary work we should consider the function of antropoetonyms in vertical context (the link between artistic and other texts, and the groundwork system of culture), as well as in the context of the horizontal one (times’ connection realized in the communication chain from the word to the text; the author’s intention). In this aspect, the role of antropoetonyms in the structure of the literary text is extremely significant because antropoetonyms convey an associative nature, generating a complex mechanism of allusions. It’s an open fact that they always transmit information about the preceding text and suggest a double decoding. On the one hand, the recipient decodes this information, on the other – accepts this as a sort of hidden, “secret” sense.

scholarly journals The Influence of La and Ce on Microstructure and Mechanical Properties of an Al-Si-Cu-Mg-Fe Alloy at High Temperature

Metals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 384
Author(s):  
Andong Du ◽  
Anders E. W. Jarfors ◽  
Jinchuan Zheng ◽  
Kaikun Wang ◽  
Gegang Yu
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
High Temperature ◽  
Intermetallic Phases ◽  
High Temperature Strength ◽  
Thermal Expansion Mismatch ◽  
Strengthening Mechanisms ◽  
High Temperature Mechanical Properties ◽  
Minor Contribution ◽  
A Minor

The effect of lanthanum (La)+cerium (Ce) addition on the high-temperature strength of an aluminum (Al)–silicon (Si)–copper (Cu)–magnesium (Mg)–iron (Fe)–manganese (Mn) alloy was investigated. A great number of plate-like intermetallics, Al11(Ce, La)3- and blocky α-Al15(Fe, Mn)3Si2-precipitates, were observed. The results showed that the high-temperature mechanical properties depended strongly on the amount and morphology of the intermetallic phases formed. The precipitated tiny Al11(Ce, La)3 and α-Al15(Fe, Mn)3Si2 both contributed to the high-temperature mechanical properties, especially at 300 °C and 400 °C. The formation of coarse plate-like Al11(Ce, La)3, at the highest (Ce-La) additions, reduced the mechanical properties at (≤300) ℃ and improved the properties at 400 ℃. Analysis of the strengthening mechanisms revealed that the load-bearing mechanism was the main contributing mechanism with no contribution from thermal-expansion mismatch effects. Strain hardening had a minor contribution to the tensile strength at high-temperature.

scholarly journals Refugees and the Borders of Europe: A Minor Contribution

2015 ◽  
Vol 27 (1) ◽  
pp. 1-4
Author(s):  
Elena Loizidou
Keyword(s):  
Minor Contribution ◽  
A Minor

Politeness and social utopia in Friedrich Schiller’s Wilhelm Tell

2013 ◽  
Vol 3 (1) ◽  
pp. 34-55 ◽  
Author(s):  
Christel Björkstrand
Keyword(s):  
Common Ground ◽  
Initial Study ◽  
Minor Role ◽  
Politeness Theory ◽  
Dramatic Structure ◽  
German Philosopher ◽  
Social Visions ◽  
The One ◽  
A Minor ◽  
Social Utopia

This paper is an interdisciplinary analysis of Friedrich Schiller’s play Wilhelm Tell (1804). An initial study of its dramatic structure suggests a change in the relationship between the Swiss peasants and nobles. A further analysis, based on Brown’s and Levinson’s politeness theory confirms the development of a social utopia in the play, but also reveals that Wilhelm Tell plays a minor role in the social development described. The comparison of the play with earlier versions of the Tell legend highlights the roles of peasants and nobles in the establishment of the Swiss Confederation and suggests that Schiller elaborated extensively on the idea of a ‘common ground’ among the Swiss from different classes. The comparison between Schiller’s play and the contemporary German philosopher Johann Benjamin Erhard’s essay Über das Recht des Volks zu einer Revolution illustrates that Schiller’s social utopia develops in accordance with contemporary social visions. However, Tell’s act of murder separates him from the other Swiss protagonists in Schiller’s attempt to outline a righteous revolution, different from the one in France.

The Victim – a Great Actor in a Minor Role? – A Comparative Perspective

2021 ◽  
Vol 11 (1) ◽  
pp. 112-128
Author(s):  
Łukasz Duśko ◽  
Mateusz Szurman
Keyword(s):  
Social Order ◽  
American English ◽  
Active Role ◽  
Criminal Court ◽  
Minor Role ◽  
Criminal Proceedings ◽  
The One ◽  
A Minor ◽  
To Receive

Recently, the role of the victim in criminal proceedings became more significant. An observation was made that the legal interests of the victim are much more severely affected by the crime than the collective legal interests in the form of public or social order. However, the differences in the rights the victim is vested with differ substantively between particular countries. The authors present the position of the victim in American, English and French law. The solutions provided for in these systems are confronted with legal regulations adopted in Poland, i.e. the home country of the authors. It shows, surprisingly, that the role of the victim in criminal proceedings has evolved somehow independently of the implementation of the concept of restitution. On the one hand, there are legal systems in which the criminal court may order the offender to pay compensation for the damage caused, but the role of the victim still remains marginal. On the other hand, there are systems in which the victim is not only entitled to receive restitution, but he or she also has significant powers which enable him or her to play an active role in the criminal proceedings.

scholarly journals Cleavage of DNA and RNA by PLD3 and PLD4 limits autoinflammatory triggering by multiple sensors

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Amanda L. Gavin ◽  
Deli Huang ◽  
Tanya R. Blane ◽  
Therese C. Thinnes ◽  
Yusuke Murakami ◽  
...  
Keyword(s):  
Nucleic Acid ◽  
Inflammatory Diseases ◽  
Type I ◽  
Multiple Sensors ◽  
Dna And Rna ◽  
Elevated Type ◽  
Minor Contribution ◽  
Ifn Γ ◽  
A Minor ◽  
Rna And Dna

AbstractPhospholipase D3 (PLD3) and PLD4 polymorphisms have been associated with several important inflammatory diseases. Here, we show that PLD3 and PLD4 digest ssRNA in addition to ssDNA as reported previously. Moreover, Pld3−/−Pld4−/− mice accumulate small ssRNAs and develop spontaneous fatal hemophagocytic lymphohistiocytosis (HLH) characterized by inflammatory liver damage and overproduction of Interferon (IFN)-γ. Pathology is rescued in Unc93b13d/3dPld3−/−Pld4−/− mice, which lack all endosomal TLR signaling; genetic codeficiency or antibody blockade of TLR9 or TLR7 ameliorates disease less effectively, suggesting that both RNA and DNA sensing by TLRs contributes to inflammation. IFN-γ made a minor contribution to pathology. Elevated type I IFN and some other remaining perturbations in Unc93b13d/3dPld3−/−Pld4−/− mice requires STING (Tmem173). Our results show that PLD3 and PLD4 regulate both endosomal TLR and cytoplasmic/STING nucleic acid sensing pathways and have implications for the treatment of nucleic acid-driven inflammatory disease.

scholarly journals A Rest in the West. Translation of Modernity and Modernism in William Heinesen's „Grylen“ / Týðing av moderniteti og modernismu í „Grylen” eftir William Heinesen

2017 ◽  
Vol 59 ◽  
pp. 87
Author(s):  
Bergur Rønne Moberg
Keyword(s):  
Short Story ◽  
Oral Tradition ◽  
Second World War ◽  
Faroe Island ◽  
World War ◽  
Modern Fiction ◽  
The One ◽  
A Minor ◽  
Second World ◽  
Complex Question

<p><strong>Úrtak</strong></p><p>Greinin viðger ‘týðingar’spurdómar í stuttsøguni „Grylen“ (1957) eftir William Heinesen. Søgan tekur støði í einum elligomlum føstulávintssiði í Føroyum – at ganga grýla – sum doyði út beint fyri seinna heimsbardaga. Í søguni hjá Williami verður grýlan til ein dionýsiskan figur kallaður Grylen, sum er ólýsandi og ímyndar orðloysi. Greinin vísir, hvussu metatilvitaða frásøgufólkið letur seg hugkveikja av hesum fyribrigdi  við  áhaldandi at umringja tað við nýggjum myndum. Týdda grýlan verður greinað sum 1) eitt ontologiskt tulkingartilvitað frásøgufólk og sum 2) eitt eyðkenni við bókmentamentan í  útjaðaranum. Stuttsøgan fær skap sum ein navngevingargongd av einari undantaksveru, og tað er við støði í hesum botnloysi, at frásøgufólkið tulkar og týðir grýluna til eitt listaligt úttrykk. Grylen umboðar eina rest, sum dregur seg undan modernaðum mannagongdum. Við støði í hugsanum hjá Franco Moretti og Andreas Huyssen verður týðingin samstundis knýtt at landafrøðiliga útjaðaranum, sum skapar ein serligan tørv á týðing í royndini at minka um munin millum ‘miðdepil’ og ‘útjaðara’. Í hesum samteksti umboðar Grylen og oyggin Stapa eitt mentanarligt eftirsleip, sum verður gjørt til eina styrki. Hetta ’writing back’ brúkar føroyskan miðaldarsið og fornaldarligt evni sum Dionysos til at seta spurning við hegemoniska(n) modernitet og modernismu og við hvat er miðdepil og hvat er útjaðari.</p><p><strong> </strong></p><p><strong>A</strong><strong>bstract</strong></p><p>This analysis addresses the issue of translation in William Heinesen’s short story „Grylen“ (1957). It is a story of an old Dionysiac Faroese ritual, which died out around The Second World War. The narrator sets himself the task of transplanting this Dionysos into modern fiction.  Due  to  the  muteness  of  the  Gryla the literary connection to the myth can only be established by virtue of interpretation as demonstrated as an explicit mediation of the mythical silence. The muteness appear as a matter of interpretation while being encircled in  conflicting  images.  Focus  is  partly  given on the interpreted Gryla as a complex question of ontological interpretation and partly as an expression of cultural translation linked to aesthetic development in the geographical periphery. Due to the muteness of the Gryla, the whole story appears as a course of naming the nameless forces that work within Dunald, who is the one having the Gryla. Based on Franco Moretti’s og Andreas Huyssen’s notion of ‘centre and periphery’, the question of translation is connected to the Faroe Island as a non­metropolitan culture. Due to the cultural backlog in the periphery there is a special need for translations caused by the discrepancy between the trans­atlantic modernity and a minor culture as the Faroese still close to nature and the oral tradition. In response to the cultural backlog the dynamics of translation become a privileged perspective creating connections between   modern   and   premodern   aspects. The Faroese reaction represents an alternative modernity and an alternative (geo)modernism writing back to a rule­based hegemonic modernity an modernism in order to give an account of the encounter with another world, which evades direct contact and brings into question what is periphery and what is centre.</p><p> </p>

scholarly journals On the connection between quark propagation and hadronization

2020 ◽  
Vol 80 (9) ◽  
Author(s):  
Alberto Accardi ◽  
Andrea Signori
Keyword(s):  
Sum Rules ◽  
Mass Term ◽  
Final State ◽  
Mass Generation ◽  
Gauge Invariant ◽  
Dynamical Generation ◽  
Dynamical Quark Mass ◽  
Complete Set ◽  
Fragmentation Functions ◽  
The One

AbstractWe investigate the properties and structure of the recently discussed “fully inclusive jet correlator”, namely, the gauge-invariant field correlator characterizing the final state hadrons produced by a free quark as this propagates in the vacuum. Working at the operator level, we connect this object to the single-hadron fragmentation correlator of a quark, and exploit a novel gauge invariant spectral decomposition technique to derive a complete set of momentum sum rules for quark fragmentation functions up to twist-3 level; known results are recovered, and new sum rules proposed. We then show how one can explicitly connect quark hadronization and dynamical quark mass generation by studying the inclusive jet’s gauge-invariant mass term. This mass is, on the one hand, theoretically related to the integrated chiral-odd spectral function of the quark, and, on the other hand, is experimentally accessible through the E and $${\widetilde{E}}$$ E ~ twist-3 fragmentation function sum rules. Thus, measurements of these fragmentation functions in deep inelastic processes provide one with an experimental gateway into the dynamical generation of mass in Quantum Chromodynamics.

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