37,194 research outputs found
Projective lattices of tiled orders
No full textTiled orders over discrete valuation ring have been studied since the 1970s by many mathematicians, in particular, by Yategaonkar V.A., Tarsy R.B., Roggenkamp K.W, Simson D., Drozd Y.A., Zavadsky A.G. and Kirichenko V.V. Yategaonkar V.A. proved that for every n > 2, there is, up to an isomorphism, a finite number of tiled orders over a discrete valuation ring O of finite global dimension which lie in where K is a field of fractions of a commutatively discrete valuation ring O. The articles by R.B. Tarsy, V.A. Yategaonkar, H. Fujita, W. Rump and others are devoted to the study of the global dimension of tiled orders. H. Fujita described the reduced tiled orders in Mn(D) of finite global dimension for n = 4; 5. V.M. Zhuravlev and D.V. Zhuravlev described reduced tiled orders in Mn(D) of finite global dimension for n = 6: This paper examines the necessary condition for the finiteness of the global dimension of the tile order. Let A be a tiled order. The kernel of the projective resolvent of an irreducible lattice has the form M1f1 +M2f2 + ::: +Msfs, where Mi is irreducible lattice, fi is some vector. If the tile order has a finite global dimension, then there is a projective lattice that is the intersection of projective lattices. This condition is the one explored in the paper.Key words: tiled order, exponent matrix, projective lattice.Pages of the article in the issue: 16-19Language of the article: UkrainianTiled orders over discrete valuation ring have been studied since the 1970s by many mathematicians, in particular, by Yategaonkar V.A., Tarsy R.B., Roggenkamp K.W, Simson D., Drozd Y.A., Zavadsky A.G. and Kirichenko V.V. Yategaonkar V.A. proved that for every n > 2, there is, up to an isomorphism, a finite number of tiled orders over a discrete valuation ring O of finite global dimension which lie in where K is a field of fractions of a commutatively discrete valuation ring O. The articles by R.B. Tarsy, V.A. Yategaonkar, H. Fujita, W. Rump and others are devoted to the study of the global dimension of tiled orders. H. Fujita described the reduced tiled orders in Mn(D) of finite global dimension for n = 4; 5. V.M. Zhuravlev and D.V. Zhuravlev described reduced tiled orders in Mn(D) of finite global dimension for n = 6: This paper examines the necessary condition for the finiteness of the global dimension of the tile order. Let A be a tiled order. The kernel of the projective resolvent of an irreducible lattice has the form M1f1 +M2f2 + ::: +Msfs, where Mi is irreducible lattice, fi is some vector. If the tile order has a finite global dimension, then there is a projective lattice that is the intersection of projective lattices. This condition is the one explored in the paper.Key words: tiled order, exponent matrix, projective lattice.Pages of the article in the issue: 16 - 19Language of the article: Ukrainia
Nasledie «Sidora Karpovicha» v sovremennoj pesennoj kul'ture
No full textThe article analyzes the transformation of the Russian folk song “Dear
Sir Sidor Karpovich”, studied by V. N. Toporov in 1979. This text was a
prison game depicting a funeral rite and having a function of initiation,
but re cently it has become a popular song and lost its minor mood. At the
same time, the protagonist (Sidor Karpovich) loses his name and becomes
a secondary character. The main role is taken by his wife, Lyubka, called
by the epithet “gray dove”. The plot of the song is based on twists and turns of her life after the death of her husband. Analyzing the image of the dove in poetry and, in particular, in prison lyrics, as well as looking at possible influences of other popular songs, the author proposes possible reasons for such a transformation
Diffusive author(s), cohesive author: Analysis of S/N (1994)
No full textThis study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)
Stably stratified shear-produced turbulence and large-scalewaves in a lid driven cavity
No full textWe study experimentally stably stratified sheared turbulence and large-scale flows and waves in a lid driven cavity with a non-zero vertical mean temperature gradient. Geometrical properties of the large-scale vortex (e.g., its size and form) and the level of small-scale turbulence inside the vortex are controlled by the buoyancy (i.e., by the temperature stratification). The observed velocity fluctuations are produced by the shear of the large-scale vortex. At larger stratification obtained in our experiments, the strong turbulence region is located at the upper part of the cavity where the large scale vortex exists. In this region the Brunt-Väisälä frequency is small and increases in the direction outside the large-scale vortex. This is the reason of that the large-scale internal gravity waves are observed in the regions outside the large-scale vortex. We found these waves by analyzing the non instantaneous correlation functions of the temperature and velocity fields. The observed large-scale waves are nonlinear because the frequency of the waves determined from the temperature field measurements is two times smaller than that obtained from the velocity field measurements. The measured intensity of the waves is of the order of the level of the temperature turbulent fluctuations
Syntheses, structures, and spectroscopy of mono- and polynuclear lanthanide complexes containing 4-acyl-pyrazolones and diphosphineoxide
No full textLanthanide coordination compounds are important due to their unique luminescence and magnetic properties. Direct synthesis of oligo- and polymeric Ln complexes with a predicted structure is hampered due to high coordination numbers and unstable coordination polyhedra. A «building blocks» strategy for the synthesis of Ln(Q)3L polymers (Ln = Eu, Tb or Gd; HQ = 1-phenyl-3-methyl-4-RC(=O)pyrazol-5-one in general, in detail HQS, R = thienyl; HQCP: R = cyclopentyl; L = bis(diphenylphosphine)methane dioxide dppMO2, bis(diphenylphosphine)ethane dioxide dppEO2, and bis(diphenylphosphine)butane dioxide
dppBO2) has been used: {Ln(Q)3} mononuclear fragments have been linked by dppXO2 bridges when X = E or B, while monomeric molecular derivatives have been isolated with dppMO2. Eighteen new
complexes were prepared, 12 of them showing a polymeric nature and 6 being monomers. Three compounds have been structurally characterized, further confirming the hypothesized connectivity
where metal centers have been found to exist in LnO8 square antiprismatic environments. Luminescence properties have been also investigated
The synthesis of monodisperse alkanes with long chains
No full textThis thesis discusses reasons for the interest in monodisperse long chain alkanes and describes attempts, past and present, to synthesise such molecules. Chapter 1 discusses why the synthesis of such molecules are important and the objectives of this project. Chapter 2 reviews the methods previous groups have devised to prepare pure samples of long chain alkanes. In particular, work carried out by Whiting et al. at Bristol, whose scheme formed the basis of the early work in Durham. Chapter 3 describes the work in Durham and improvements which were made to Whiting's method, allowing the synthesis of longer chain lengths and greater quantities of materials to be achieved. Chapter 4 provides a summary of the practical work carried out by the author. Chapter 5 gives experimental details of the work described in Chapter 4
Economia i pensament econòmic a la Catalunya de l'alta edat moderna (1520-1630)
No full textLa tesis doctoral d'Oriol Junqueras Vies analitza el naixement del pensament econòmic «modern» en el Mediterrani occidental. L'estudi estableix els paral·lelismes oportuns amb el pensament anglès i castellà de les primeres dècades del segle XVII.La tesis doctoral de Oriol Junqueras Vies analiza el nacimiento del pensamiento económico «moderno» en el Mediterráneo occidental. La investigación establece los oportunos paralelismos con el pensamiento inglés y castellano en las primeras décadas del siglo XVII.Oriol Junqueras Vies's doctoral thesis analyses the birth of the modern economic thought in western Mediterranean territories. The author studies the paralelisms with the Spanish and English thought in the first decades of the 17th century
Dret i polítiques ambientals en la Comunitat Valenciana
No full textEl autor analiza principalmente la legislación de la Comunidad Valenciana relativa a espacios naturales y zonas de protección, y vedas y reservas de caza y pesca.L’autor analitza principalment la legislació de la Comunitat Valenciana relativa a espais naturals i zones de protección, i vedes i reserves de caça i pescaThe author focuses mainly on analysing the Valencian Community legislation on natural spaces and protection zones, as well as hunting and fishing closed seasons and reserves
Porównanie warstw fizycznych standardów 802.11ac i n
No full text802.11ac, n and ad are three newest IEEE standards. 802.11n implements a lot of new proposals especially in PHY and MAC layers while in 802.11ac
there aren’t any new technologies but only optimization and development of ac new ideas. Both propose significant increased in throughput but only ac reaches the level which could guarantee the multimedia successful communication. Author compares the most important features of PHY layers of both standards.802.11ac, n i ad to trzy najnowsze standardy IEEE. W przypadku 802.11n wprowadzono szereg nowych rozwiązań, szczególnie w warstwach fizycznej i dostępu, podczas gdy 802.1ac właściwie nie zaproponował nic nowego, a jedynie zoptymalizował i rozwinął pomysły swojego poprzednika. Oba standardy znacząco zwiększyły dostępne przepustowości, ale tylko ac oferuje taki poziom przepustowości, który gwarantuje skuteczne transmisje multimedialne. W artykule porównano najważniejsze parametry warstw fizycznych obu standardów
Dataset for "The Hazel Stem Borer, Agrilus pseudocoryli (Coleoptera: Buprestidae), as a Pest of Hybrid Hazelnuts"
No full textSurvey of damage from the hazel stem borer (Agrilus pseudocoryli) and presence of eastern filbert in a hybrid hazelnut orchard in Minnesota.
Little to no curation was performed on this dataset. DRUM can not verify the completeness or quality of the documentation, nor the FAIRness of the included files. Please contact the author with any questions.University of Minnesota - Louise T. Dosdall FellowshipUnited States Department of Agriculture - Specialty Crop Research Initiative 2019-51181-30025University of Minnesota - Bell Museum Award (James Wilkie Fund)Perish, Patrick K; Lindsey, Amelia R I; Koch, Alexa; Aukema, Brian H; Shanovich, Hailey N. (2023). Dataset for "The Hazel Stem Borer, Agrilus pseudocoryli (Coleoptera: Buprestidae), as a Pest of Hybrid Hazelnuts". Retrieved from the Data Repository for the University of Minnesota (DRUM), https://hdl.handle.net/11299/254160
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