cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Marketing a spárga értékesítésben
Creators: name: Sántha, Tamás
name: Tálos, István
name: Sántha, Tamás
name: Tálos, István
Publisher: name: Unknown
Year: 2004
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Marketing
subject: FOS: Economics and business

description: Az 1990-es években bekövetkezett változások következtében megnövekedett a mezőgazdasági szereplők száma hazánkban. Magyarországon a mezőgazdaságból megélni kívánók aránya jóval nagyobb, mint a fejlettebb nyugat-európai országokban. A termelők jelentős része – a kis birtokméret miatt – csak intenzív termeléssel tudja (tudná) fenntartani magát és családját, minőségi termelés és megfelelő marketing mellett. Példaként a Dunántúlon működő és jó minőségű halványított spárgát előállító társaság marketingtevékenységét mutatjuk be. A Kft. 96 ha-on termel halványított spárgát. A megtermelt árut 8 szortimentbe sorolva 3 fő marketingcsatornán keresztül értékesítik Németországba. Magyarországon egyelőre csak kis mennyiséget értékesítenek. A cég összetett árképzési módja, illetve a több résztvevős értékesítési rendszer nagy biztonságot jelent. Vizsgálataink legfőbb tanulsága az, hogy az üzleti siker érdekében nem elegendő az igényes nyugati piacokon elvárt minőségű termék előállítása, hanem ehhez tudatos és célszerű komplex marketingpolitika is szükséges. ---------------- Because of changes in the 1990’s the number of persons involved in agriculture in this country has increased. The ratio of people wishing to make a living out of agriculture is considerably greater than in the more developed western European countries. A significant proportion of farmers, because of the size of their holdings, can (could) only maintain themselves and their families by employing intensive farming methods producing quality goods and using appropriate marketing strategies. As an example we shall describe the marketing activity of a Dunántúl company producing good quality pale asparagus. The company cultivates asparagus on 96 hectares of land. They market their product in 8 different assortments via 3 main marketing channels in Germany. For the time being they market only a small quantity in Hungary. The method employed for retraining and the use of multi channel marketing imply a good degree of security. The main conclusion of this study is that in the interest of business success the production of good quality goods expected in discerning western markets have to be supplemented by conscious and expedient marketing policies.
Xystosomus elaphrinus Bates Elytral 1871
Creators: name: Erwin, Terry L.
Publisher: name: Zenodo
Year: 1973
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Carabidae
Xystosomus
Xystosomus elaphrinus

description: The members of the elaphrinus group are characterized by the following: huge hemispherical eyes; narrow, almost square pronotum (narrower than head across eyes); nonsulcate prosternal process; and fully developed flight wings. The characteristics of the internal sac of the male genitalia, including the presence of a "brush sclerite," correspond to those in the members of the gruti group. With the exception of the apex of the stylus, the characteristics of the female genitalia also correspond to those in the members of the gruti group. In the elaphrinus group, the apex is blunt, with the lateral spines exceeding it in length. Presently known to represent this group are three species with a combined distribution (Figure 70) from Costa Rica to Brazil.
description: Published as part of Erwin, Terry L., 1973, Studies of the subtribe Tachyina (Coleoptera: Carabidae: Bembidiini), Part I: A revision of the Neotropical genus Xystosomus Schaum, pp. 1-39 in Smithsonian Contributions to Zoology 140 on pages 20-21, DOI: 10.5479/si.00810282.140, http://zenodo.org/record/3828531
Az alternatív jövedelemszerzés Hajdú-Bihar megyében
Creators: name: Csapó, Zsolt
name: Csapó, Zsolt
Publisher: name: Unknown
Year: 2004
Subjects: Agricultural and Food Policy
Agricultural Finance
Community/Rural/Urban Development

description: Megállapítható, hogy a ’90-es évek elejétől a vállalkozások, ezen belül a mezőgazdasági vállalkozások egy részénél szemléletváltás történt. A hagyományos mezőgazdasági tevékenységek mellett újra megjelentek az alternatív jövedelem- szerzés irányába mutató lépések. Ezzel párhuzamosan évről évre nőtt a támogatási területek köre, ezen belül egyre több lehetőség kínálkozott az alternatív jövedelemszerzést segítő tevékenységekre is. Természetesen a támogatások fel- használásának alapvető feltétele a pályázatnak való megfelelésen túl a jó pályázat készítése, melyhez sok esetben a gazdálkodók még nem rendelkeznek a szükséges tapasztalatokkal. Ezt különböző külső- és a pályázatírás területén már gyakorlattal rendelkező szaktanácsadók segíthetik, melynek jelentősége az európai uniós csatlakozást követően fokozódik. Évről évre nő a benyújtott pályázatok száma, közöttük az alternatív jövedelemszerzést (turizmus, falusi turizmus, ökoturizmus, bioenergia hasznosítás, nem a mezőgazdasági alaptevékenységhez tartozó fejlesztések) szolgálók, de mindezidáig nem történt áttörés ezen a területen. ---------------- It can be stated that since the beginning of 1990’s management approaches have changed in many production companies including a portion of farming enterprises. In addition to traditional farming activities many farms turned to the acquisition of alternative income. Over the years the number of subsidised activities in agriculture increased, giving rise to opportunities for acquiring alternative income. Naturally a fundamental condition of obtaining support, the soundness of application apart, is the preparation of a good application, for which farmers in many cases do not have the skill and experience as yet. Various external and internal experts experienced in writing such applications should be able to help these farmers especially after Hungary’s EU accession. The number of applications increase year by year, a portion of which are to aid the acquisition of alternative income (tourism, farm accommodation, eco-tourism, utilisation of bio-energy and other non-agricultural developments). The examples described in this study indicated that there had been no breakthrough in these activities so far.
Realizations of exceptional U-duality groups as conformal and quasiconformal groups and their minimal unitary representations
Creators: name: Gunaydin, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We review the novel quasiconformal realizations of exceptional U-duality groups whose "quantization" lead directly to their minimal unitary irreducible representations. The group $E_{8(8)}$ can be realized as a quasiconformal group in the 57 dimensional charge-entropy space of BPS black hole solutions of maximal N=8 supergravity in four dimensions and leaves invariant "lightlike separations" with respect to a quartic norm. Similarly $E_{7(7)}$ acts as a conformal group in the 27 dimensional charge space of BPS black hole solutions in five dimensional N=8 supergravity and leaves invariant "lightlike separations" with respect to a cubic norm. For the exceptional N=2 Maxwell-Einstein supergravity theory the corresponding quasiconformal and conformal groups are $E_{8(-24)}$ and $E_{7(-25)}$, respectively. These conformal and quasiconformal groups act as spectrum generating symmetry groups in five and four dimensions and are isomorphic to the U-duality groups of the corresponding supergravity theories in four and three dimensions, respectively. Hence the spectra of these theories are expected to form unitary representations of these groups whose minimal unitary realizations are also reviewed.
description: Invited talk at the first Gunnar Nordstroem Symposium on Theoretical Physics (Helsinki, Aug. 2003)
Utolsó lehetőség előtt a magyarországi agrárgazdaság!
Creators: name: Gaál, Béla
name: Gaál, Béla
Publisher: name: Unknown
Year: 2004
Subjects: Agribusiness
Agricultural and Food Policy
Public Economics

description: A koppenhágai folyamat lezárásával a magyar élelmiszergazdaság szereplői 2004-től – mint a sikeres diákok felsőbb osztályba léphetnek, új környezetben, új tananyaggal ismerkedhetnek. A leendő új tag, társaival quasi egyenlőségi helyzetben kell vetélkedjen, csak évek múltán, fokozatosan lesz egyenlőbb, ami legalább két fontos tényre irányítja a figyelmet: – őszintén és reálisan kell felmérni fel- készültségét (ebben segítség lehet egy ágazati SWOT analízis) – kritikusan és szakmai hozzáértéssel, alázattal kell foglalkozni eddig elhanyagolt, illetve mellékesen kezelt kérdésekkel. ------------------ With completion of the Copenhagen negotiations Hungarian members of the food industry after 2004 may as successful students step into a higher school and learn about new teaching materials in a new environment. The would be new member should compete with other members in quasi equality, only with years passed will become “equal”, and this focuses attention to two important points: – preparedness has to sincerely and realistically assessed (SWOT analysis may be of help in this respect) – so far neglected or secondary problems will have to be dealt with critically, expertly and with humility. In the first area of subject matter various commercial and banking studies will be useful, although they tend to paint for reasons of self-interest a critical picture of a sector, differing considerably from government reports, which are not without a touch of treasury optimism. In the second area of subject matter the question arises whether members of committee are aware of the cause of disease, whose treatment may alleviate the condition or an unnecessary treatment of symptoms may bring about expenditure, failures and ultimately the death of a branch?
Információtechnológia az agrárgazdaságban
Creators: name: Herdon, Miklós
name: Herdon, Miklós
Publisher: name: Unknown
Year: 2004
Subjects: Research and Development/Tech Change/Emerging Technologies
Teaching/Communication/Extension/Profession

description: Az információ-technológiai eszközök és alkalmazások robbanásszerű fejlődése, a különböző információtechnológiák konvergenciája mélyreható gazdasági és társadalmi változásokat indított el a világban. Bármilyen gazdasági stratégiát követve ma már figyelembe kell venni az információs technológiák fejlődéséből és alkalmazásából eredő hatásokat. A gazdasági tevékenység eredményességét egyre inkább a tudás határozza meg, vagyis a különböző munkahelyek egyre több képességet, tudást igényelnek. Az OECD-országok gazdasági növekedésének kulcstényezője lett a tudás alapú innováció. Ennek segítése, támogatása igényli informatikai rendszerek létrehozását. Az igények alapján a fejlett országokban és az EU-ban létrejöttek az innováció közvetítő központok. Az EU agrárgazdaságában is gyorsan szaporodnak az internet hálózatra alapozott tartalom- és alkalmazás szolgáltatások, melyeknél a folyamatos minőségi javulás figyelhető meg. A hazai ágazati informatikai rendszerek és alkalmazások, valamint a szakismeretek fejlesztésénél célszerű figyelembe venni fejlettebb országok tapasztalatait, a nemzetközi követelményeket és trendeket. ---------------- The rapid development of information technology tools and applications, along with the convergence of different information technologies, has resulted in deep economic and social changes throughout the world. Anybody following whatever economic strategy cannot help taking impacts deriving from the development and application of information technologies into consideration. The influence of know-how on the effectiveness of economic activity is continually increasing; in other words, more and more skill and know-how is required in every workplace. In OECD countries innovation based on know-how has become the key factor of economic growth. Information systems have to be created in order to forward and support such innovation. Centres mediating innovation have been established for this purpose in the European Union. The number of content and application services based on the internet web is rapidly growing also in EU agriculture, along with a continuous improvement of their quality. It is advisable to consider experience acquired in advanced countries, along with international requirements and trends, in the course of developing domestic sectoral information systems and applications.
Comprehensive assessment of the company’s competitiveness
Creators: name: Vashkiv, Oleksandr
name: Sobko, Olha
name: Smereka, Svitlana
Publisher: name: figshare
Year: 2021
Subjects: subject: 140202 Economic Development and Growth
subject: FOS: Economics and business
subject: 140206 Experimental Economics

description: The article is devoted to the development of methodological approaches to carry out a comprehensive assessment and analysis of the competitiveness of the enterprise. The relevance of the topic of research is due to the lack of a single generally accepted technique for its implementation in Ukraine at this time. The proposed method is based on a holistic hierarchical system of factors of competitiveness of the enterprise developed by T. Cono, thereby expanding the possibilities of assessing and analyzing the competitiveness of the enterprise. Among these factors: the market share that the company occupies, innovative potential, production and sales capacity of the enterprise, the company's strategy, the management potential, the main results of the enterprise. The focus on these factors made it possible to develop a methodology that is an effective tools not only in obtaining objective information to assess and analyze the competitiveness of the enterprise, but also to build an effective system of controlling it.
Стаття присвячена характеристиці та розробці методичних підходів для здійснення комплексної оцінки й аналізу конкурентоспроможності підприємства. Актуальність теми дослідження зумовлена відсутністю на сьогодні в Україні єдиної загальноприйнятої методики для здійснення такого аналізу й оцінки. У дослідженні узагальнено найважливіші методичні підходи в оцінці конкурентоспроможності підприємств, а також у виокремленні тих підходів, які в сучасних економічних умовах дозволяють отримати найбільш адекватну інформацію про рівень конкурентоспроможності підприємства, його динаміку та перспективи підвищення і запропонувати методику комплексної оцінки конкурентоспроможності підприємства. Розроблена у статті методика базується на цілісній п’ятирівневій ієрархічній системі чинників конкурентоспроможності підприємства. Серед цих чинників: частка ринку, яку займає підприємство, інноваційний потенціал, виробничі та збутові потужності підприємства, стратегія підприємства, потенціал вищої ланки керівництва, найважливіші результати діяльності підприємства. Для кожного чинника отримано показник чи низку показників, які дозволяють комплексно оцінити ті чи інші аспекти діяльності підприємства, що важливі у забезпеченні його конкурентоспроможності. Зорієнтованість на зазначені чинники дозволила розробити методику, яка є дієвим інструментарієм не лише в отриманні об’єктивної інформації для оцінки та аналізу конкурентоспроможності підприємства, але й для побудови ефективної системи управління нею.
X-ray Properties of Lyman Break Galaxies in the Great Observatories Origins Deep Survey
Creators: name: Lehmer, B. D.
name: Brandt, W. N.
name: Alexander, D. M.
name: Bauer, F. E.
name: Conselice, C. J.
name: Dickinson, M. E.
name: Giavalisco, M.
name: Grogin, N. A.
name: Koekemoer, A. M.
name: Lee, K. S.
name: Moustakas, L. A.
name: Schneider, D. P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We constrain the X-ray emission properties of Lyman break galaxies (LBGs) at z ~ 3-6 using the 2 Ms Chandra Deep Field-North and 1 Ms Chandra Deep Field-South. Large samples of LBGs were discovered using HST as part of the Great Observatories Origins Deep Survey (GOODS). Deep optical and X-ray imaging over the GOODS fields have allowed us to place the most significant constraints on the X-ray properties of LBGs to date. Mean X-ray properties of 449, 1734, 629, and 247 LBGs with z ~ 3, 4, 5, and 6, respectively, were determined using stacking techniques. When stacked, we detect X-ray emission from LBGs at z ~ 3 (7 sigma) and from an optically bright subset (brightest 25%) of LBGs at z ~ 4 (3 sigma); the latter is the highest redshift detection yet for "normal" galaxies in the X-ray band. The effective exposure times for these stacked observations are 0.7 and 0.5 Gs, respectively. The derived average rest-frame 2.0-8.0 keV luminosities are 1.5 and 1.4 x 10^41 erg s^-1, respectively. X-ray emission from these LBGs is likely due to high mass X-ray binaries (HMXBs) and Type II supernovae; the corresponding star formation rates are 85-240 M_sol yr^-1. The X-ray to B-band mean luminosity ratio (Lx/LB) at z~3 is somewhat elevated with respect to that measured for starburst galaxies in the local Universe. When stacking full samples of LBGs at z ~ 4, 5, and 6 we do not obtain significant detections and derive rest-frame 2.0-8.0 keV luminosity upper limits of 0.9, 2.8, and 7.1 x 10^41 erg s^-1, respectively. These upper limits constrain any widespread AGN activity in these objects to be modest at best. Furthermore, we find that ~ 0.5% of our LBGs from z ~ 3-6 are detected individually in the X-ray band. Continued ...
description: 19 pages, 5 figures. AJ, in press
Exceptional nonrelativistic effective field theories with enhanced symmetries
Creators: name: Brauner, Tomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We initiate the classification of nonrelativistic effective field theories (EFTs) for Nambu-Goldstone (NG) bosons, possessing a set of redundant, coordinate-dependent symmetries. Similarly to the relativistic case, such EFTs are natural candidates for "exceptional" theories, whose scattering amplitudes feature an enhanced soft limit, that is, scale with a higher power of momentum at long wavelengths than expected based on the mere presence of Adler's zero. The starting point of our framework is the assumption of invariance under spacetime translations and spatial rotations. The setup is nevertheless general enough to accommodate a variety of nontrivial kinematical algebras, including the Poincare, Galilei (or Bargmann) and Carroll algebras. Our main result is an explicit construction of the nonrelativistic versions of two infinite classes of exceptional theories: the multi-Galileon and the multi-flavor Dirac-Born-Infeld (DBI) theories. In both cases, we uncover novel Wess-Zumino terms, not present in their relativistic counterparts, realizing nontrivially the shift symmetries acting on the NG fields. We demonstrate how the symmetries of the Galileon and DBI theories can be made compatible with a nonrelativistic, quadratic dispersion relation of (some of) the NG modes.
description: 1+40 pages, 1 figure; v2: updated reference list, matches version published in JHEP
La nuova fase dei rapporti tra mercato comune ed associazione europea di libero scambio.
Creators: name: VITO, F.
Publisher: name: Moneta e Credito
Year: 2014

description: Scopo dell’analisi presente nell’articolo è scegliere o apportare ritocchi ai diversi criteri ispiratori cui il MEC e l’EFTA obbediscono.
description: Moneta e Credito, V. 14, N. 55 (1961)
Fractional Fokker--Planck Equation for Nonlinear Stochastic Differential Equations Driven by Non-Gaussian Levy Stable Noises
Creators: name: Schertzer, D.
name: Larchev, M.
name: Duan, J.
name: Yanovsky, V. V.
name: Lovejoy, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 05.40+j,05.60+w, 66.10Cb, 05.70 a

description: The Fokker-Planck equation has been very useful for studying dynamic behavior of stochastic differential equations driven by Gaussian noises. In this paper, we derive a Fractional Fokker--Planck equation for the probability distribution of particles whose motion is governed by a {\em nonlinear} Langevin-type equation, which is driven by a non-Gaussian Levy-stable noise. We obtain in fact a more general result for Markovian processes generated by stochastic differential equations.}
La struttura dei mercati monetari. (The structure of money markets)
Creators: name: WILSON, J.S.G.
Publisher: name: Moneta e Credito
Year: 2014
Subjects: subject: Money markets, financial institutions, monetary assets
subject: E40, E44, G10, G20

description: The article surveys the main characteristics of money markets. It defines a money market as a center in which financial institutions congregate for the purpose of dealing in monetary assets. The author stresses the variety of organisational forms as well as the common elements of these markets. JEL: E40, E44, G10, G20
description: Moneta e Credito, V. 14, N. 55 (1961)
A fejlettség településszintű elemzése a Dél-Dunántúli régióban
Creators: name: Sarudi, Csaba
name: Molnár, Tamás
name: Sarudi, Csaba
name: Molnár, Tamás
Publisher: name: Unknown
Year: 2004
Subjects: Community/Rural/Urban Development

description: A területi fejlődési egyenlőtlenség nemcsak a régiók között, hanem a régiókon belül is jelentkezik. Magyarországon sem beszélhetünk azonos fejlettségű, homogén régiókról. Még a megyei szintet (NUTS III.) sem nevezhetjük annak. Árnyaltabb képet igazán akkor kapunk, ha települési (NUTS V.), vagy legalább kistérségi szinten (NUTS IV.) folytatunk vizsgálatokat. Az ezeken a szinteken rendelkezésre álló adatok elegendőek ahhoz, hogy matematikai-statisztikai módszerekkel feldolgozva, objektív következtetésekre jussunk az adott kistérség, illetve település fejlettségére vonatkozóan. A tanulmány településszintű fejlettségi vizsgálatok leírására vállalkozik az SPSS programcsomag felhasználásával. Célkitűzése a Dél-dunántúli régióban kialakult fejlődési egyenlőtlenségek főbb tényezőinek megállapítása és egy település-fejlettségi sorrend kialakítása. Az elemzés első fázisában használt 39, majd 17 mutató a főkomponens-analízis módszerével egy fejlettséget kifejező változócsoportra redukálódott. A második lépcsőben a főkomponens 10 lényeges változójából egy sokdimenziós skálázási metodikával kiszámításra került az egyes települések fejlettségét komplexen leíró mutató, amely jelezte a települések fejlettségi sorrendjét. ----------------- Inequalities in territorial development take place not only between regions but also within them. There are no uniformly developed homogenous regions in Hungary either, not even on county level (NUTS III). An adequate notion can only be formed if investigations are carried out on settlement level (NUTS V), or at least on micro-region level (NUTS IV). Data available on these levels may suffice for drawing objective conclusions concerning the degree of development of a given micro-region or settlement when processed using mathematic-statistical methods. The authors of the present paper have described investigations carried out on settlement level by means of the SPSS programme package. Their object was to detect the main factors having resulted in developmental inequalities which have come into being in the South Transdanubian region, and to form an order of settlements corresponding to their degree of development. 39 indices used throughout the first phase of analysis, and 17 indices used later, were reduced by means of the method of main component analysis to a group of variables expressing the degree of development. As a second step, indexes describing the degree of development for each settlement in a complex way were calculated from the 10 most important variables of the main component using the multi-dimension scaling method; these indexes indicate the order of settlements in respect of their degree of development.
title: Computer algebra and analysis: complex variables visualized
Creators: name: Ponweiser, Thomas
Publisher: name: TU Wien
Year: 2014
Subjects: subject: modulare Gruppe
subject: modulare Funktion
subject: Möbiustransformation
subject: Cayley Transformation
subject: stereographische Projektion
subject: Fundamentalbereich
subject: Hyperbolische Geometrie
subject: Fordkreis
subject: Kettenbrüche
subject: modular group
subject: modular function
subject: Möbius transformation
subject: Cayley transformation
subject: stereographic projection
subject: generalized circle
subject: fundamental region
subject: hyperbolic geometry
subject: Ford circle
subject: continued fractions

description: Ziel dieser Diplomarbeit ist die Visualisierung einiger grundlegender Ergebnisse aus dem Umfeld der Theorie der modularen Gruppe sowie der modularen Funktionen unter Zuhilfenahme der Computer Algebra Software Mathematica. Die Arbeit gliedert sich in drei Teile. Im ersten Kapitel werden für diese Arbeit relevante Begriffe aus der Gruppentheorie zusammengefasst. Weiters werden Möbius Transformationen eingeführt und deren grundlegende geometrische Eigenschaften untersucht. Das zweite Kapitel ist der Untersuchung der modularen Gruppe aus algebraischer und geometrischer Sicht gewidmet. Der kanonische Fundamentalbereich der modularen Gruppe sowie die daraus abgeleitete Kachelung der oberen Halbebene wird eingeführt. Weiters wird eine generelle Methode zum Auffinden von Fundamentalbereichen für Untergruppen der modularen Gruppe vorgestellt, welche sich zentral auf die Konzepte der 2-dimensionalen hyperbolischen Geometrie stützt. Im dritten Kapitel geben wir einige konkrete Beispiele, wie die aufgebaute Theorie für die Visualisierung bestimmter mathematischer Sachverhalte angewendet werden kann. Neben der Visualisierung von Graphen modularer Funktionen stellt sich auch der Zusammenhang zwischen modularen Transformationen und Kettenbrüchen als besonders schönes Ergebnis dar.
description: The aim of this diploma thesis is the visualization of some fundamental results in the context of the theory of the modular group and modular functions. For this purpose the computer algebra software Mathematica is utilized. The thesis is structured in three parts. In Chapter 1, we summarize some important basic concepts of group theory which are relevant to this work. Moreover, we introduce Möbius transformations and study their geometric mapping properties. Chapter 2 is devoted to the study of the modular group from an algebraic and geometric point of view. We introduce the canonical fundamental region which gives rise to the modular tessellation of the upper half-plane. Additionally, we present a general method for finding fundamental regions with respect to subgroups of the modular group based on the concepts of 2-dimensional hyperbolic geometry. In Chapter 3 we give some concrete examples how the developed results and methods can be exploited for the visualization of certain mathematical results. Besides the visualization of function graphs of modular functions, a particularly nice result is the connection between modular transformations and continued fraction expansions.
Minimal field requirement in precessional magnetization switching
Creators: name: Xiao, Di
name: Tsoi, M.
name: Niu, Qian
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate the minimal field strength in precessional magnetization switching using the Landau-Lifshitz-Gilbert equation in under-critically damped systems. It is shown that precessional switching occurs when localized trajectories in phase space become unlocalized upon application of field pulses. By studying the evolution of the phase space, we obtain the analytical expression of the critical switching field in the limit of small damping for a magnetic object with biaxial anisotropy. We also calculate the switching times for the zero damping situation. We show that applying field along the medium axis is good for both small field and fast switching times.
description: 6 pages, 7 figures
Identification of Néel vector orientation in antiferromagnetic domains switched by currents in NiO/Pt thin films
Creators: name: Schmitt, Christin
name: Baldrati, Lorenzo
name: Sanchez-Tejerina, Luis
name: Schreiber, Felix
name: Ross, Andrew
name: Filianina, Mariia
name: Ding, Shilei
name: Fuhrmann, Felix
name: Ramos, Rafael
name: Maccherozzi, Francesco
name: Backes, Dirk
name: Mawass, Mohamad A.
name: Kronast, Florian
name: Valencia, Sergio
name: Saitoh, Eiji
name: Finocchio, Giovanni
name: Kläui, Mathias
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Understanding the electrical manipulation of antiferromagnetic order is a crucial aspect to enable the design of antiferromagnetic devices working at THz frequency. Focusing on collinear insulating antiferromagnetic NiO/Pt thin films as a materials platform, we identify the crystallographic orientation of the domains that can be switched by currents and quantify the Néel vector direction changes. We demonstrate electrical switching between different T-domains by current pulses, finding that the Néel vector orientation in these domains is along $[\pm5\ \pm5\ 19]$, different compared to the bulk $<11\bar{2}>$ directions. The final state of the Néel vector $\textbf{n}$ switching after current pulses $\textbf{j}$ along the $[1\ \pm1\ 0]$ directions is $\textbf{n}\parallel \textbf{j}$. By comparing the observed Néel vector orientation and the strain in the thin films, assuming that this variation arises solely from magnetoelastic effects, we quantify the order of magnitude of the magnetoelastic coupling coefficient as $b_{0}+2b_{1}=3*10^7 J\ m^{-3}$ . This information is key for the understanding of current-induced switching in antiferromagnets and for the design and use of such devices as active elements in spintronic devices.
Optimal Composition of Heterogeneous Multi-Agent Teams for Coverage Problems with Performance Bound Guarantees
Creators: name: Sun, Chuangchuang
name: Welikala, Shirantha
name: Cassandras, Christos G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: We consider the problem of determining the optimal composition of a heterogeneous multi-agent team for coverage problems by including costs associated with different agents and subject to an upper bound on the maximal allowable number of agents. We formulate a resource allocation problem without introducing additional non-convexities to the original problem. We develop a distributed Projected Gradient Ascent (PGA) algorithm to solve the optimal team composition problem. To deal with non-convexity, we initialize the algorithm using a greedy method and exploit the submodularity and curvature properties of the coverage objective function to derive novel tighter performance bound guarantees on the optimization problem solution. Numerical examples are included to validate the effectiveness of this approach in diverse mission space configurations and different heterogeneous multi-agent collections. Comparative results obtained using a commercial mixed-integer nonlinear programming problem solver demonstrate both the accuracy and computational efficiency of the distributed PGA algorithm.
description: To be published in Automatica
Entangled and disentangled evolution for a single atom in a driven cavity
Creators: name: Gea-Banacloche, J.
name: Burt, T. C.
name: Rice, P. R.
name: Orozco, L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: For an atom in an externally driven cavity, we show that special initial states lead to near-disentangled atom-field evolution, and superpositions of these can lead to near maximally-entangled states. Somewhat counterintutively, we find that (moderate) spontaneous emission in this system actually leads to a transient increase in entanglement beyond the steady-state value. We also show that a particular field correlation function could be used, in an experimental setting, to track the time evolution of this entanglement.
Study of CKM angle $γ$ sensitivity using flavor untagged $B^0_s\rightarrow \tilde{D}^{(*)0}ϕ$ decays
Creators: name: Ao, D.
name: Decamp, D.
name: Qian, W. B.
name: Ricciardi, S.
name: Sazak, H.
name: T'Jampens, S.
name: Tisserand, V.
name: Wang, Z. R.
name: Yang, Z. W.
name: Zhang, S. N.
name: Zhou, X. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A sensitivity study for the measurement of the CKM angle $γ$ from $B^0_s\rightarrow \tilde{D}^{(*)0}ϕ$ decays is performed using $D$ meson reconstructed in the quasi flavour-specific modes $Kπ$, $K3π$, $Kππ^0$, and \CP-eigenstate modes $KK$ and $ππ$, where the notation $\tilde{D}^0$ corresponds to a $D^0$ or a ${\tilde{D}^0}$ meson. The LHCb experiment is taken as a use case. A statistical uncertainty of about $8-19^{\circ}$ can be achieved with the $pp$ collision data collected by the LHCb experiment from year 2011 to 2018. The sensitivity to $γ$ should be of the order $3-8^{\circ}$ after accumulating 23\invfb of $pp$ collision data by 2025, while it is expected to further improve with 300~fb$^{-1}$ by the second half of the 2030 decade. The accuracy depends on the strong parameters $r^{(*)}_{B}$ and ${δ^{(*)}_{B}}$, describing, together with $γ$, the interference between the leading amplitudes of the $B^0_s\rightarrow \tilde{D}^{(*)0}ϕ$ decays.
description: 37 pages, 41 figures
Il finanziamento delle esportazioni negli Stati Uniti: polemiche e istituzioni. (Finance for exports: United States policies and institutions)
Creators: name: SEGRÉ, C.
Publisher: name: Moneta e Credito
Year: 2014
Subjects: subject: US export finance, Export-Import Bank, export financing facilities, credit, policy
subject: F30, G21, E60

description: The article historically reconstructs the experience of export finance in the United States. The US case provides an apt illustration of the problems of adapting existing institutions to the requirements of a changing situation. The author considers the structure and organisation of the Export-Import Bank and other early export financing facilities, as well as the inadequacies of these structures. The author concludes that the facilities currently available in the US appear more satisfactory for longer-term credits while European institutions seem superior as far as short and medium-term credits and guarantees are concerned. JEL: F30, G21, E60
description: Moneta e Credito, V. 14, N. 55 (1961)
Bullied to the brink : an investigation of students at risk for depression & suicidal ideation
Creators: name: Bonanno, Rina Angela
Publisher: name: University of British Columbia
Year: 2011

description: The purpose of the present study was to gain a clearer understanding of why it is that some adolescents who are involved in bully/victim problems are more negatively impacted than others. Drawing from research in the areas of bullying, suicide, and exposure to violence, two theoretically derived models that seek to explain potential paths between involvement in bullying behaviour and depression and suicidal ideation were investigated. First, it was hypothesized that hopelessness would act as a mediator between victimization and suicidal ideation and second, that perceived social support would interact with involvement in bullying behaviour to predict depression and suicidal ideation. Additionally, it was predicted that witnessing bullying would be positively associated with both depression and suicidal ideation. Students in grades 8 - 10 (N = 399) completed self-report measures assessing involvement in bullying (as either a victim, bully, bully-victim or witness), type of bullying (physical, verbal, social and cyber), depressive symptomatology, suicidal ideation, hopelessness (general and social), perceived social support (family and friend) and moral disengagement. Results indicated that social hopelessness did partially mediate the relation between victimization and suicidal ideation. This finding suggests that a potential mechanism by which victimized students become suicidal is through victimization's impact on social hopelessness and that the more socially hopeless someone becomes the greater their risk for having suicidal thoughts. Findings also revealed that perceived social support had a buffering effect on the relation between victimization and depression/suicidal ideation such that victimized students with higher perceived social support reported lower levels of depression and suicidal ideation than did students with lower perceived social support. Additionally, results from the present study demonstrated a significant relation between all forms of involvement in cyber bullying (as a victim, bully, bully-victim and witness) and both depression and suicidal ideation. Finally, findings revealed that witnessing bullying was significantly positively associated with both depression and suicidal ideation, however, associations were more robust for those witnessing friends being bullied than those witnessing others being bullied. Taken together, these findings suggest potential risk and protective factors that help explain why some children involved in bully/victim problems are at greater risk for depression and suicidal ideation than other children.
Hausaufgaben und exekutive Funktionen
Creators: name: Tschalèr, Franzisca
name: Weiss, Sabine
Publisher: name: Zenodo
Year: 2017
Subjects: Sonderpädagogik
Hausaufgabe
Exekutive Funktionen
Masterarbeit

description: Wer hat noch nie im Zusammenhang mit der Schule über Hausaufgaben diskutiert? Dieses Dauerthema erhält eine neue Sichtweise durch die Einbeziehung der exekutiven Funktionen, als Steuerfunktion für bewusstes Denken und Handeln. Die theoretische Aufbereitung der Themen Hausaufgaben und exekutive Funktionen zeigt auf, wie diese zueinander in Beziehung stehen. Im Rahmen einer Einzelfallforschung wird bei zwei Kindern die Bearbeitung der Hausaufgaben in Bezug auf die exekutiven Funktionen mit den Schwerpunkten Planen/Strukturieren und Aufmerksamkeit untersucht. Als Forschungsmethoden dienen neben der kontrollierten Einzelfallstudie eine vereinfachte Form der Erlebens-Stichproben- Methode (ESM) und eine strukturierte Beobachtung. Durch die Auswertung der Daten und der Interpretation derselben ergeben sich Erkenntnisse für neue Förderschwerpunkte der Kinder im Rahmen der exekutiven Funktionen.
Pianificazione ed integrazione internazionale nella Germania Orientale. (Planning and international integration in Soviet Germany)
Creators: name: STOLPER, W.F.
Publisher: name: Moneta e Credito
Year: 2014
Subjects: subject: Eastern Germany, GDR, Soviet Union, socialist planning, development
subject: O20, O52, P21

description: The German Democratic Republic has developed into a powerful member of the Soviet bloc, and yet little attention has so far been payed to it. The author argues that communist propaganda pictures developments in East Germany as a triumph of socialist planning over inherited backwardness, while free-market economists consider every failure as proof of imminent collapse. Instead, East Germany is a very interesting case of its own due to the peculiarity of its resource endowment as well as the recent history of bombing and war damage. JEL: O20, O52, P21
description: Moneta e Credito, V. 14, N. 55 (1961)
Quantum fluctuation induced ordered phase in the Blume-Capel model
Creators: name: Todoroki, Norikazu
name: Miyashita, Seiji
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the Blume-Capel model with the quantum tunneling between the excited states. We find a magnetically ordered phase transition induced by quantum fluctuation in a model. The model has no phase transition in the corresponding classical case. Usually, quantum fluctuation breaks ordered phase as in the case of the transverse field Ising model. However, in present case, an ordered phase is induced by quantum fluctuation. Moreover, we find a phase transition between a quantum paramagnetic phase and a classical diamagnetic phase at zero temperature. We study the properties of the phase transition by using a mean field approximation (MFA), and then, by a quantum Monte Carlo method to confirm the result of the MFA.
description: 7 pages, 6 figures, corrected some typos
title: Calibration of space-borne scatterometers : towards a consistent climate data record for soil moisture retrieval
Creators: name: Reimer, Christoph
Publisher: name: TU Wien
Year: 2014
Subjects: subject: Scatterometers
subject: Climate
subject: Soil Moisture Retrieval
subject: Remote Sensing
subject: Geodesy

description: Higher level scatterometer products, such as surface soil moisture and wind vector fields became an important input dataset for climate change research. For this reason an accurate radiometric calibration of space-borne scatterometers is needed by the scientific community to establish a long-term consistent climate data record. Accordingly a novel radiometric calibration methodology is developed with the objective to achieve a consistent calibration of the European scatterometer mission onboard of the European Remote-Sensing Satellite (ERS) and the Meteorological Operational Platform (MetOp). The introduced calibration method is a stepwise relative calibration approach by making use of applicable extended area land-targets. A set of appropriate extended area calibration targets is determined by a threshold based decision scheme using three parameters to characterise backscatter attributes of individual land-targets. Consistent calibrated backscatter coefficients throughout a specific scatterometer mission are achieved by conducting sensor intra-calibration. Radiometric calibration deficiencies are explored in individual antenna beams of ERS-2 AMI-WS and MetOp-A ASCAT revealing deviations to a defined calibration reference in the order of 0.2 dB for AMI-WS and 0.1 dB for ASCAT respectively. Similarities in the instrument technical design of AMI-WS and ASCAT encourage a merging of these European scatterometer missions. As a consequence, a second calibration methodology is introduced on top of sensor intra-calibration, with the objective to identify possible differences in the radiometric calibration levels of the two scatterometer missions, referred to as sensor inter-calibration. Differences in the calibration levels of AMI-WS and ASCAT are found to reveal biases ranging from 0.39 dB to -0.08 dB. The capability of the developed stepwise calibration methodology to correct for such calibration related deficiencies is demonstrated by the use of independent verification targets. Taking advantage of the developed stepwise calibration methodology will result in a long-term consistent calibrated European scatterometer data archive comprising more than 30 years of global data.
Hydrodynamics of the Vacuum
Creators: name: Stevenson, P. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Hydrodynamics is the appropriate "effective theory" for describing any fluid medium at sufficiently long length scales. This paper treats the vacuum as such a medium and derives the corresponding hydrodynamic equations. Unlike a normal medium the vacuum has no linear sound-wave regime; disturbances always "propagate" nonlinearly. For an "empty vacuum" the hydrodynamic equations are familiar ones (shallow water-wave equations) and they describe an experimentally observed phenomenon -- the spreading of a clump of zero-temperature atoms into empty space. The "Higgs vacuum" case is much stranger; pressure and energy density, and hence time and space, exchange roles. The speed of sound is formally infinite, rather than zero as in the empty vacuum. Higher-derivative corrections to the vacuum hydrodynamic equations are also considered. In the empty-vacuum case the corrections are of quantum origin and the post-hydrodynamic description corresponds to the Gross-Pitaevskii equation. I conjecture the form of the post-hydrodynamic corrections in the Higgs case. In the 1+1-dimensional case the equations possess remarkable `soliton' solutions and appear to constitute a new exactly integrable system.
description: 31 pages, 6 .eps figures. Minor changes. More general multi-solition solution in Sect. 9
title: Transformation of rural traditional men’s gender relationality in the 1980 military coup films
title: The transformation of rural traditional men’s gender relationality in the 1980 military coup films
titleType: AlternativeTitle
Creators: name: Göktepe, Erden
Publisher: name: The University of Edinburgh
Year: 2023
Subjects: Turkish Cinema
gender relationality
masculinities
historical construction
daily gendered practices
Ottoman gender history
Turkish gender history
Westernisation
traditional Turkish man
modern Turkish man
gendered local regimes
hegemonic masculinity

description: The aim of this thesis is to deploy the theory of masculinity to disclose the transformation process of rural traditional Turkish masculinities represented in the 1980 military coup films. Turkish film studies scholars have never fully explored the historical construction of men’s representation and subjectivation of men’s gender identity in local regimes, and this thesis aims to address these shortcomings. I ask the question: to what extent do the selected coup films expose the traditional men’s gender relationality with women by using Multimodal Film Analysis. My purpose in doing so is to better enable the implicit meaning creation to understand the nuances of multi-level cinematic construction. Using Ottoman and Turkish history, I show that in the films, traditional men become subject to and subject of their daily practices due to their misfit positions in hegemonic gender orders in relation to women in their personal lives. I also show that the analysis of cinematic construction reveals the structured implicit meanings in the films. The significance of this study is that it informs our theoretical understanding of masculinities’ re-configuration process in a non-Western setting by introducing a focus on gender relationality in films hitherto lacking and informs the necessity for an empirical film analysis to reveal what the films deliver.
Non-Negative Integer Linear Congruences
Creators: name: Harris, John C.
name: wehlau, David L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11D79

description: We consider the problem of describing all non-negative integer solutions to a linear congruence in many variables. This question may be reduced to solving the congruence $x_1 + 2x_2 + 3x_3 + ... + (n-1)x_{n-1} \equiv 0 \pmod n$ where values of the unknowns, $x_i$, are sought among the non-negative integers. We consider the monoid of solutions of this equation and prove a conjecture of Elashvili concerning the structure of these solutions. This yields a simple algorithm for generating most (conjecturally all) of the high degree indecomposable solutions of the equation.
description: 7 pages. This is the write up of some work we did 10 years ago and have not published up until now. It will be submitted for publication soon