cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Awareness And Usage of Swayam Courses Among Library And Information Science Students: A Survey
Creators: name: A, SUBAVEERAPANDIYAN
name: H, Fakrudhin Ali Ahamed
Publisher: name: figshare
Year: 2021
Subjects: subject: Library and Information Studies
subject: FOS: Media and communications

description: The Government of India initiated SWAYAM (Study Webs of Active-learning for Young Aspiring Minds), where the objective of the programme is to take the best teaching and learning resources to all with no costs. To find out the awareness and usage of SWAYAM courses among Library and Information science students, survey method of research used. To collect data from selective Universities students a structured questionnaire was prepared. The results show that most of the responses received from Annamalai University, majority respondents are aware of SWAYAM course. Respondents are aware of these courses through their teachers. 74.73% of respondents replied that their University providing orientation programme on SWAYAM. Half of the respondents prefer Word file format for submitting their assignment. More than 82% of respondents are spending 1-3 hours for SWAYAM course. Half of the respondents are agreed SWAYAM courses help to gain new knowledge and supports life-long learning. Further, the result reveals that the numbers of students continue their enrolled courses and only less number were discontinued due to some reasons
Self-dual noncommutative ϕ^4-theory in four dimensions is a non-perturbatively solvable and non-trivial quantum field theory
Creators: name: Grosse, Harald
name: Wulkenhaar, Raimar
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Operator Algebras (math.OA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study quartic matrix models with partition function Z[E,J]=\int dM \exp(trace(JM-EM^2-(λ/4)M^4)). The integral is over the space of Hermitean NxN-matrices, the external matrix E encodes the dynamics, λ>0 is a scalar coupling constant and the matrix J is used to generate correlation functions. For E not a multiple of the identity matrix, we prove a universal algebraic recursion formula which gives all higher correlation functions in terms of the 2-point function and the distinct eigenvalues of E. The 2-point function itself satisfies a closed non-linear equation which must be solved case by case for given E. These results imply that if the 2-point function of a quartic matrix model is renormalisable by mass and wavefunction renormalisation, then the entire model is renormalisable and has vanishing β-function. As main application we prove that Euclidean ϕ^4-quantum field theory on four-dimensional Moyal space with harmonic propagation, taken at its self-duality point and in the infinite volume limit, is exactly solvable and non-trivial. This model is a quartic matrix model, where E has for N->\infty the same spectrum as the Laplace operator in 4 dimensions. Using the theory of singular integral equations of Carleman type we compute (for N->\infty and after renormalisation of E,λ) the free energy density (1/volume)\log(Z[E,J]/Z[E,0]) exactly in terms of the solution of a non-linear integral equation. Existence of a solution is proved via the Schauder fixed point theorem. The derivation of the non-linear integral equation relies on an assumption which we verified numerically for coupling constants 0
description: LaTeX, 64 pages, xypic figures. v4: We prove that recursion formulae and vanishing of \beta-function hold for general quartic matrix models. v3: We add the existence proof for a solution of the non-linear integral equation. A rescaling of matrix indices was necessary. v2: We provide Schwinger-Dyson equations for all correlation functions and prove an algebraic recursion formula for their solution
Entwicklung von Gesundheit und Wohlbefinden Heranwachsender in weiterführenden Schulen in Deutschland : längs- und querschnittliche Perspektiven
Creators: name: Herke, Max Gerd
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2022
Subjects: subject: 610

description: Die Forschung zu Gesundheit und Wohlbefinden von Jugendlichen in Deutschland berücksichtigt den Einfluss des Schulkontextes bisher kaum. Ziel dieser Arbeit ist, im Querschnitt den Einfluss ausgewählter Schulmerkmale mit Fokus auf Schulklima, schulisches Wohlbefinden und Schulleistung, sowie im Längsschnitt Veränderungen von Gesundheit und Wohlbefinden über die Sekundarstufe zu analysieren, mit Daten des Nationalen Bildungspanels. Die Ergebnisse verdeutlichen einerseits die Verschlechterung von Gesundheit und Wohlbefinden über die Sekundarstufe und besondere Belastungen in Gymnasien. Andererseits zeigen sie, dass ein besseres Schulklima dazu beitragen kann, Gesundheit und Wohlbefinden Jugendlicher zu verbessern und institutionalisierte Unterschiede zwischen den Schulformen abzubauen. Schulklima und schulische Anforderungen sollten stärker auf die Bedürfnisse der Jugendlichen zugeschnitten sein und die zahlreichen weiteren Entwicklungsaufgaben berücksichtigen.
description: Research on adolescents' health and well-being in Germany has so far hardly considered the influence of the school context. The aim of this work is to analyze cross-sectionally the influence of selected school characteristics with a focus on school climate, school well-being and school performance, as well as longitudinally changes in health and well-being over secondary education, using data from the National Education Panel Study. On the one hand, the results illustrate the deterioration of health and well-being over the secondary education and particular strains in schools including higher secondary education. On the other hand, they show that a better school climate can help improve adolescents' health and well-being and reduce institutionalized differences between school types. School climate and school demands should be more tailored to the needs of adolescents and take into account the many other developmental tasks.
Ideals of varieties parameterized by certain symmetric tensors
Creators: name: Bernardi, A.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2007
Subjects: MAT/03 Geometria
MAT/02 Algebra

description: The ideal of a Segre variety is generated by the 2-minors of a generic hypermatrix of indeterminates. We extend this result to the case of SegreVeronese varieties. The main tool is the concept of “weak generic hypermatrix” which allows us to treat also the case of projection of Veronese surfaces from a set of generic points and of Veronese varieties from a Cohen-Macaulay subvariety of codimension 2.
The Lorentz-invariant boundary action of the confining string and its universal contribution to the inter-quark potential
Creators: name: Billo, M.
name: Caselle, M.
name: Gliozzi, F.
name: Meineri, M.
name: Pellegrini, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study the boundary contribution to the low energy effective action of the open string describing the confining flux tube in gauge theories. The form of the boundary terms is strongly constrained by the requirement of Lorentz symmetry, which is spontaneously broken by the formation of a long confining flux tube in the vacuum. Writing the boundary action as an expansion in the derivatives of the Nambu-Goldstone modes describing the transverse fluctuations of the string, we single out and put in a closed form the first few Lorentz invariant boundary terms. We also evaluate the leading deviation from the Nambu-Goto string produced by the boundary action on the vacuum expectation value of the Wilson loop and we test this prediction in the 3d Ising gauge model. Our simulation attains a level of precision which is sufficient to test the contribution of this term.
description: 17 pages, 5 figures, LateX 2e. V2: Final version published on JHEP. Fixed typos in eq.s 2.2, 2.3, 3.7, 3.8, A.4. Extended explanation of the procedures used in sec 2 to determine the possible boundary terms up to field redefinitions and of the procedure used in sec 4 to take the continuum limit. V3: typos corrected in eq.s (4.3) (4.5) and (4.6), acknowledgements added
On the spectrum of a parameter-dependent Sturm-Liouville problem
Creators: name: Ansaloni, Susanna
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2007
Subjects: MAT/07 Fisica matematica
MAT/05 Analisi matematica

description: We study the spectrum of a parameter dependent Sturm-Liouville problem by using the continued fractions, through which necessary and sufficient conditions for eigenvalues are obtained. From these conditions estimates for large eigenvalues depending on the parameter and an asymptotic result for the lowest eigenvalue will follow. Furthermore, the use of the theory of orthogonal polynomials provides upper and lower bounds for the eigenvalues given in terms of the zeros of particular sequences of polynomials.
On the Notion of Complete Intersection outside the Setting of Skew Polynomial Rings
Creators: name: Vancliff, Michaela
Publisher: name: arXiv
Year: 2011
Subjects: subject: Rings and Algebras (math.RA)
subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14M10, 16S38, 16E65

description: In recent work of T. Cassidy and the author, a notion of complete intersection was defined for (non-commutative) regular skew polynomial rings, defining it using both algebraic and geometric tools, where the commutative definition is a special case. In this article, we extend the definition to a larger class of algebras that contains regular graded skew Clifford algebras, the coordinate ring of quantum matrices and homogenizations of universal enveloping algebras. Regular algebras are often considered to be non-commutative analogues of polynomial rings, so the results herein support that viewpoint.
description: This paper replaces the preprint "Defining the Notion of Complete Intersection for Regular Graded Skew Clifford Algebras", and also has a paragraph written correctly that is garbled by the publisher in the published version (paragraph after Example 3.8)
A Lass and a Lack? Women in British Silent Comedy
Creators: name: Porter, Laraine
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: L-ART/06 Cinema, fotografia e televisione

description: This chapter considers the role of women in British silent film comedy from 1895 to the end of the 1920s and their legacy into the early sound period. It argues that women comedians became increasingly marginalized as cinema developed into an industry, with the codes, form and style of the “mature silent cinema” restricting women into a narrow range of stereotypes that negated female agency and prioritized looks and glamour over personality or character. The dominance of a few male directors in British cinema, particularly Asquith and Hitchcock, narrowed opportunities for comedic women with their preponderance for objectifying women. It commences with a resume of women performing slapstick and physical comedy, using the Edwardian Tilly Girl comedies as case studies, arguing that women enjoyed relative comic freedom until the Great War, despite the plethora of stereotypes—coy young ladies, “old maids,” suffragettes, domineering wives etc—that characterized their representation in early cinema. Florence Turner is presented as a key figure in the pivotal period immediately following World War I, before falling victim to one of British cinema’s periodic recessions. Betty Balfour’s ingénue “Squibs” is emblematic of the early 1920s, but even her star wanes as she outgrows her youthful persona, becoming the butt of jokes around ageing in A Little Bit of Fluff (1928).
Lattice supersolid phase of strongly correlated bosons in an optical cavity
Creators: name: Li, Y. -Q.
name: He, L.
name: Hofstetter, W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We numerically simulate strongly correlated ultracold bosons coupled to a high-finesse cavity field, pumped by a laser beam in the transverse direction. Assuming a weak classical optical lattice added in the cavity direction, we model this system by a generalized Bose-Hubbard model, which is solved by means of bosonic dynamical mean-field theory. The complete phase diagram is established, which contains two novel self-organized quantum phases, lattice supersolid and checkerboard solid, in addition to conventional phases such as superfluid and Mott insulator. At finite but low temperature, thermal fluctuations are found to enhance the buildup of the self-organized phases. We demonstrate that cavity-mediated long-range interactions can give rise to stable lattice supersolid and checkerboard solid phases even in the regime of strong s-wave scattering. In the presence of a harmonic trap, we discuss coexistence of these self-organized phases, as relevant to experiments.
description: 4 pages, 3 figures
Herzratenvariabilität und Aufmerksamkeit : Die autonome Reaktion auf Anforderungen bei Aufmerksamkeitstests
Creators: name: Dorn, Annegret Dorothee
Publisher: name: Otto-von-Guericke-Universität Magdeburg
Year: 2020
Subjects: subject: Aufmerksamkeitstest
subject: Herzfrequenzvariabilität
subject: 153.733

description: Im Alltag eines Menschen strömen eine Vielzahl von Einflüssen auf ihn ein, doch nur durch gerichtete Aufmerksamkeit ist es möglich seine Aufgaben zu bewältigen. Die vorliegende Studie, die im Rahmen des Forschungsprojekts ArdiAS stattfand, untersucht die autonome Reaktion des Körpers bei verschiedenen Aufmerksamkeitsanforderungen. Dazu wurde die Herzfrequenzvariabilitäts(HRV)-analyse durchgeführt. Neben diesen objektiven Beanspruchungsparametern wurde die subjektive Beanspruchung mittels BORG-Skala sowie die Verschmelzungsfrequenz ermittelt und auf Zusammenhänge analysiert. Während die 51 Probanden (29 Männer und 22 Frauen) im Durchschnittsalter von 25,7 ± 7,52 Jahren eine randomisierte Aufmerksamkeitstestbatterie absolvierten, erfolgte eine EKG-Aufzeichnung für die nachfolgende HRV-Analyse. Beim paarweisen Vergleich der HRV-Parameter wurden zahlreiche signifikante Unterschiede in der objektiven Beanspruchung zwischen Tests der Aufmerksamkeitstestbatterie und zur Ruhephase am Anfang, sowie besonders zur Erholungsphase am Ende festgestellt, sodass die Erholungsphase als Baseline für folgende Berechnung verwendet wurde. Die objektive Beanspruchung bzw. die autonome Reaktion waren abhängig von der Art und dem Grad der kognitiven Anforderung. Besonders auffällig war hierbei, dass sich parasympathisch beeinflusste HRV-Parameter des Zeitbereiches bei Belastung ausnahmslos reduzierten. Die Verschmelzungsfrequenz die für die Ermittlung der kognitiven Aktiviertheit eingesetzt war, veränderte sich nicht am Ende des Versuches. Bei Betrachtung der Häufigkeiten der signifikanten Unterschiede der HRV-Parameter zwischen Tests und Erholungsphase spiegelte sich die Borg-Skala bei anspruchsvollen und weniger anspruchsvollen Tests wieder.
Riding Horses, Writing Stories: Josephine Rector’s Career at Western Essanay
Creators: name: Paranyuk, Viktoria
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: L-ART/06 Cinema, fotografia e televisione

description: Josephine Rector’s fleeting career in cinema is inseparable from the Essanay Film Manufacturing Company, specifically its outfit in Northern California. This paper traces the contours of Rector’s involvement with Essanay, in particular her contribution as a scenario writer to the western genre. As head of the scenario department from 1912 to 1914, she was responsible for both writing and selecting suitable material for two-reel adventure stories, most notably the Broncho Billy series, which inaugurated the first cowboy star played by Gilbert M. Anderson. Due to the loss of the majority of Essanay films and the absent writing credits in the extant ones, a listing of Rector’s entire output is difficult if not impossible to compile. Building on the previous research about Western Essanay by the historian David Kiehn, this paper brings to light Rector’s career as that of a young woman who seized the opportunity offered to women by the burgeoning film industry in 1910s United States.
Underground outflow of rivers from the areas clay loess-like Wroclaw's Plain and Foreland of the Sudeten in the final period of atmospheric drought in december 2011
Creators: name: Sawicki, Józef
name: Sienicka, Katarzyna
Publisher: name: Wroclaw University of Science and Technology, Faculty of Geoengineering, Mining and Geology
Year: 2012
Subjects: hydrology, hydrogeology, underground runoff of rivers, The Wrocław Plain, Sudety

description: Mining Science
If it Worked for Mary. . .
Mary Pickford’s Daily Talks with the Fans
Creators: name: Brouwers, Anke
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: L-ART/06 Cinema, fotografia e televisione

description: In the nineteenth century, advice literature (conduct, courtesy or etiquette books) was a popular non-fiction genre in America. In fact, advise literature actively invaded other literary genres, most notably sentimental literature, which used fictional characters and situations to dramatize and illustrate this advice. The popularity of the genre even pervaded the twentieth century phenomenon of the film star. This paper will focus on Mary Pickford’s advisory texts and its relationship to nineteenth century advice literature. We will look at examples from Pickford’s syndicated column “Daily Talks” published between 1915 and 1917. Pickford’s texts contain similar rhetorical strategies to sweeten her didactic intent: metaphors, anecdotes, and aporia are put in the familiar and reassuring voice of the intimate friend mixed with the hortatory or inciting manner of the teacher. In terms of content there  and love of the home, self-government, religion, education, courtship etc. Working from this familiar and effective literary tradition allowed Pickford to strengthen her star appeal and its consumption as well as to promote a particular “model of living” exemplified by the star’s idealized, almost sanctified, embodiment of American womanhood.
Getting Forgotten. Film Critic Elisabeth de Roos and Dutch Culture Before World War II
Creators: name: Beusekom, Ansje Van
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: L-ART/06 Cinema, fotografia e televisione

description: Elisabeth de Roos (1903-1981) was one of the most intelligent Dutch film critics of her  time. From 1925 onwards, she published on French cinema and she contributed regularly to the Filmliga journal. Franse filmkunst [french cinema] was published in 1931. She lost her professional fascination with cinema with the coming of sound. In 1932 she married writer Eddy du Perron. “How could de Roos’s work be so entirely forgotten?” and “How exactly has this process of disappearance and oblivion taken place?” were the leading questions. Elisabeth’s life and reputation can be studied through the biographies and correspondence of her husband and his best friend Menno ter Braak. They were aware of their strategic positions, while de Roos did not care about her position in the literary landscape. Though, her personal relationship to cinema and literature and her search for authorship is very consistent, but De Roos never felt the urge to anthologize or reflect on her own writings. She dedicated herself to du Perron’s work and to raising their son. Financial troubles forced her to write as much as she could for money. Not even those women who were so active in history are granted an ongoing renown.
Retrospective-prospective symmetry in the likelihood and Bayesian analysis of case-control studies
Creators: name: Byrne, Simon P. J.
name: Dawid, A. Philip
Publisher: name: arXiv
Year: 2012
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Prentice & Pyke (1979) established that the maximum likelihood estimate of an odds-ratio in a case-control study is the same as would be found by running a logistic regression: in other words, for this specific target the incorrect prospective model is inferentially equivalent to the correct retrospective model. Similar results have been obtained for other models, and conditions have also been identified under which the corresponding Bayesian property holds, namely that the posterior distribution of the odds-ratio be the same, whether computed using the prospective or the retrospective likelihood. Here we demonstrate how these results follow directly from certain parameter independence properties of the models and priors, and identify prior laws that support such reverse analysis, for both standard and stratified designs.
description: 16 pages, to appear in Biometrika
The Leatrice Joy Bob: The Clinging Vine and Gender’s Cutting Edge
Creators: name: Schmertz, Johanna
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: L-ART/06 Cinema, fotografia e televisione

description: Zelda Sears’ 1924 Broadway play The Clinging Vine mocked male stereotypes of women. In the play, businesswoman heroine Antoinette (A.B.) is both chagrined and amused to find she has become a man magnet after she adopts an ultra-feminine “clinging vine” persona in order to test its effects. But when the play was adapted for film in 1926, with actress Leatrice Joy playing the lead role in a very short haircut, “Antoinette” disappears into her initials (A.B.), and her pre-transformation character appears masculine in both dress and demeanor. The character’s masculinity is accentuated by the silent film medium, as there is no female voice emerging from A.B. to counter her masculine impression. The result that in the film version, A.B.’s feminine transformation reads more like drag queen than clinging vine—a performative, hyper-feminine camouflage of a naturalized masculinity. Archival research into Joy’s career, coupled with interview transcripts and notes from Kevin Brownlow’s Hollywood series and discussions with Joy’s daughter, Leatrice Joy Gilbert Fountain, sheds light on the movie’s transformations and their consequences, both for Joy and for gender. The film version of The Clinging Vine movie reflects a historical moment that was surprisingly open to playful interpretations of gender. Such explorations were cut short with the coming of sound, as the attachment of actors’ voices to their bodies enabled a firmer anchoring of sex to gender.
Perturbation of transportation polytopes
Creators: name: Liu, Fu
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We describe a perturbation method that can be used to reduce the problem of finding the multivariate generating function (MGF) of a non-simple polytope to computing the MGF of simple polytopes. We then construct a perturbation that works for any transportation polytope. We apply this perturbation to the family of central transportation polytopes of order kn x n, and obtain formulas for the MGFs of the feasible cone of each vertex of the polytope and the MGF of the polytope. The formulas we obtain are enumerated by combinatorial objects. A special case of the formulas recovers the results on Birkhoff polytopes given by the author and De Loera and Yoshida. We also recover the formula for the number of maximum vertices of transportation polytopes of order kn x n.
description: 25 pages, 3 figures. To appear in Journal of Combinatorial Theory Ser. A
Movie Prologues: Cinema, Theater
and Female Types on Stage at Cinelândia, Rio de Janeiro
Creators: name: Araújo, Luciana Corrêa De
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: L-ART/06 Cinema, fotografia e televisione

description: Between 1925 and 1926, film exhibitor Francisco Serrador built four new movie-theaters in Rio de Janeiro (Brazil). Large and luxurious, they took as their model New York’s movie palaces. Also inspired by successful North American film exhibition practices, Serrador introduced to audiences the novelty of movie prologues. These were stage presentations based on the theme, characters, dialogue or scenes from the film that was about to be screened. This article investigates how movie prologues established a close relationship with Brazilian culture, especially by adopting much of the structure, types and attractions from teatro de revista (a Brazilian variant of the vaudeville). It also analyzes the female types portrayed in such attractions: the maid, the modern woman, and the mulata.
Researching Women in Silent Cinema: New Findings and Perspectives
Creators: name: Dall'Asta, Monica
name: Duckett, Victoria
name: Tralli, Lucia
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: L-ART/06 Cinema, fotografia e televisione

description: This anthology exposes the richness and variety of interests that motivate feminist film research today.  Exploring women’s contribution to silent cinema, scholars from across the globe address questions of performance, nationality, industry, technology, labor, and theory of feminist historiography. The volume builds on the thematic, methodological,  and material diversity that characterized earlier efforts in women’s film history, and the originating context of the sixth Women and the Silent Screen conference (Bologna, 2010).
Much emphasis is given to the transitional period of silent cinema (1910s to the early 1920s), which emerges as the field where feminist film scholars are beginning to claim their own theoretical and historical ‘place’. While giving a new impetus to the idea of transitional cinema, the collected essays also illuminate the importance of film’s transnational circulation. Questions of nation and nationhood, and women’s inclusion or exclusion within these terms, are examined in connection to issues of cultural globalization.  How did American serial queens impact early Chinese film? How did the variety stage accommodate American films in Rio de Janeiro? Along what lines might we discuss women filmmakers who literally toured the world? These are just some of the issues that are discussed  in the volume. Each investigation prompts us into distinct acts of cultural contextualization. A particular focus on acting and the agency of the actress is shared across the volume. The fundamental figure of the actress links multiple threads of scholarship, traversing different films and national cinemas.
Alice Guy, Asta Nielsen, Florence Turner,  Lois Weber, Mary Pickford, Esfir’ Shub, Pearl White, Vera Karalli, Aleksandra Khokhlova, Elsa Lanchester, Louise Fazenda, Sarah Bernhardt, Gemma Bellincioni, Angelina Buracci, Yin Mingzhu, Leni Riefensthal: these are but some of the names that are encountered across the essays in the collection. New findings are exposed and new research perspectives are opened through these and other figures, allowing us to uncover original ways of thinking about women’s visibility and agency on film.
Simultaneous Generation of WIMP Miracle-like Densities of Baryons and Dark Matter
Creators: name: McDonald, John
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The observed density of dark matter is of the magnitude expected for a thermal relic weakly-interacting massive particle (WIMP). In addition, the observed baryon density is within an order of magnitude of the dark matter density. This suggests that the baryon density is physically related to a typical thermal relic WIMP dark matter density. We present a model which simultaneously generates thermal relic WIMP-like densities for both baryons and dark matter by modifying a large initial baryon asymmetry. Dark matter is due to O(100) GeV gauge singlet scalars produced in the annihilation of the O(TeV) coloured scalars which are responsible for the final thermal WIMP-like baryon asymmetry. The requirement of no baryon washout implies that there are two gauge singlet scalars. The low temperature transfer of the asymmetry to conventional baryons can be understood if the long-lived O(TeV) coloured scalars have large hypercharge, |Y| > 4/3. Production of such scalars at the LHC would be a clear signature of the model.
description: 12 pages, 5 figures, overdue correction of typos, version published PRD
Changing expectations : cognitive flexibility and reward processing in larval Drosophila
Creators: name: Mancini, Nino
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2022
Subjects: subject: Neurologie
subject: Drosophila melanogaster
subject: Nervous system
subject: Reversal learning
subject: Brain function
subject: 570

description: How brains function to generate appropriate behaviours is a key question for neuroscientists. The larva of Drosophila melanogaster is emerging as a powerful study case for investigating the neural circuits underlying behaviour. Critically, the numerical simplicity of the larval nervous system has recently allowed its complete synapse connectome to be reconstructed, revealing unexpected circuit complexity. Examining the functions of the newly discovered circuit motifs through learning tasks more complex than hitherto employed now represents a major step. The present thesis deals with this challenge. In the first part, I establish a reversal learning paradigm, a non-elemental learning task where larvae are trained to reverse their behaviour according to previously learned contingencies. Reversal learning is demonstrated in a surprisingly quick, one-trial contingency adjustment, both in the appetitive and aversive domain, providing a simple and genetically easily accessible study case of cognitive flexibility. In the second part, I study one of the most complex neurons in the larval brain, the GABAergic anterior paired lateral (APL) neuron. Although APL function has been extensively studied in adults, major differences in APL connectivity between larvae and adults may suggest different functions between developmental stages, calling for a detailed look into APL function in larvae. Using a combination of behavioural analysis, optogenetics, pharmacology, and connectomics, I aim to understand how APL modulates associative olfactory memory. I first provide a detailed account of the structure and connectivity of APL. I further reveal that, surprisingly, activating APL optogenetically has a rewarding effect. Specifically, driving APL together with the presentation of an odour can establish an odour-specific, short-term associative memory. Systemic pharmacological inhibition of dopamine signalling impairs this memory, suggesting the involvement of downstream dopaminergic neurons. These findings thus provide a study case of unexpected behavioural and circuit complexity in an animal as seemingly simple as the Drosophila larva.
Entwicklung und Charakterisierung deformationsangepasster Werkstoffverbundbodenplatten zur Reduzierung des Pump-Out-Effekts leistungselektronischer Baugruppen
Creators: name: Söhl, Stefan
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2022
Subjects: subject: 620

description: Das thermische Langzeitverhalten ist wichtig für den optimalen Einsatz von leistungselektronischen Baugruppen. Dieses Verhalten wird durch den Pump-Out-Effekt negativ beeinflusst und kann zu Frühausfällen führen. Diese Arbeit umfasst eine experimentelle Messung des Pump-Out-Effekts, die Bewertung des Einflusses auf das thermische Langzeitverhalten und die Vorstellung eines alternativen Modulkonzepts zur Minimierung des Ausfallmechanismus. Das alternative Modulkonzept beinhaltet die Verwendung von mehrschichtigen Wärmespreizplatten in einer asymmetrischen Schichtkombination. Mithilfe der mehrlagigen Wärmespreizplatten kann das Verformungsverhalten unter dem Einfluss einer thermischen Wechsellast eingestellt werden. Dies führt zu einer Reduzierung des Pump-Out-Effekts und zu einer Verbesserung des thermischen Langzeitverhaltens.
description: The thermal long-term behaviour of power electronic assemblies is important for the optimum use. This behaviour is negatively influenced by the Pump-Out-Effect and can lead to early failures. This report includes an experimental measurement of the Pump-Out-Effect, the evaluation of the influence related to thermal performance and the presentation of an alternative module concept to minimize the failure mechanism. The alternative module concept includes the use of multi-layer heat spreader in an asymmetrical layer combination. With help of multi-layer heat spreader, the deformation behaviour can be adjusted under the influence of a thermal alternating load. This leads to a reduction of the Pump-Out-Effect and to an improvement of the thermal long-term behaviour.
"Don't let it hold you back" : men, masculinities, and severe hemophilia
Creators: name: Kalmar, Laszlo
Publisher: name: University of British Columbia
Year: 2014

description: Hemophilia is a congenital bleeding disorder that predominantly affects men. Prophylactic intravenous replacement of missing clotting factor, known as prophylaxis, is the most effective treatment method to prevent all internal bleeds caused by hemophilia. Despite availability of prophylaxis, it is not well understood why adult men with severe hemophilia still experience bleeding episodes resulting in irreversible joint damage and disability, particularly in adolescence and young adulthood. The purpose of this qualitative study was to explore men’s experiences of hemophilia across age groups and to explore the connections to masculinity in relation to men’s hemophilia management decisions. Adult men with severe and moderately severe hemophilia A (less than 2% factor levels) participated in three age stratified focus groups: 19 to 24 years old (n=3), 25 to 39 years old (n=4), and 40 years and older (n=4). Qualitative descriptive and constructivist grounded theory methods were used to analyze the data. Findings suggest that pain, and not earlier symptoms of a bleed, is the primary sign that prompts men to treat or seek medical help. Older men were most insightful about hemophilia and experienced the most physical and work limitations, particularly those who acquired viral infections through factor use. Many men reported experiencing a high number of injuries in adolescence, particularly in high school, a critical time period in the development of a man’s identity. Findings suggest that the process of learning to manage hemophilia extends into young adulthood and masculinities impact men’s experiences of severe hemophilia and hemophilia management decisions. Limitations imposed on men by hemophilia prompted them to rebel or protest against it by engaging in risky physical activities or delaying treatment regardless of perceptions of long-term health consequences. Men with hemophilia may benefit from education about early signs of bleeds and improved support in transitioning from adolescence into adulthood. Some masculine ideals can be mobilized to optimize hemophilia management practices that could enable men to surmount limitations and achieve personal goals across their lifespan.
Quality of life assessment in breast cancer patients during palliative care treatment in Indonesia : results of a systematic review and a prospective cohort study
Creators: name: Gayatri, Dwi
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2022
Subjects: subject: 610

description: Das Ziel dieser Arbeit ist es, die Lebensqualität (LQ) von Brustkrebspatientinnen im fortgeschrittenen Stadium während der Palliativmedizin (PM) in Indonesien zu untersuchen. Wir wurden eine systematische Literaturrecherche (SL) sowie eine prospektive Kohortenstudie durchgeführt, in der insgesamt 160 Patientinnen die Einschlusskriterien für die Studie erfüllten: weibliches Geschlecht, Alter über 18 Jahre, Brustkrebs Diagnose im Stadium III oder IV vor einer palliativ-onkologischen Behandlung zwischen Januar und Februar 2020. Wir verwendeten einen speziellen Fragebogen und die indonesische Version des EORTC QLQ-C15-PAL, um individuelle und LQ-Daten zu erheben. Die SL ergab rund 30 Faktoren, die mit der LQ in diesem Zusammenhang in Verbindung stehen. Alter, Familienstand, Bildung, zusätzliche Betreuung im Rahmen der PM, Komplementärer und Alternativmedizin und Spiritualität/Religiosität waren die wichtigsten Komponenten, die die LQ bei fortgeschrittener Krebserkrankung in Entwicklungsländern beeinflussen. Die Ergebnisse der Dissertation zeigten, dass den Bereichen emotionales Verhalten, Müdigkeit, Schmerzen, Schlaflosigkeit und Appetitlosigkeit mit dem Lebensqualitätswert assoziiert waren. Daher sollten sich Onkologen auf die spezifischen Bedürfnisse der Patienten berücksichtigt, um die LQ zu verbessern.
description: This thesis aims to assess advanced breast cancer patients' quality of life (QOL) during palliative care (PC) treatment in Indonesia. We conducted a systematic review (SR) and a prospective cohort study in which 160 patients met study inclusion criteria: female, >18 years, diagnosed with stage III or IV breast cancer before palliative oncology treatment between January and February 2020. We used a custom questionnaire and the Indonesian version of EORTC QLQ-C15-PAL to collect individual and QOL data. SR found >30 factors associated with QOL in this context. Age, marital status, education, additional care within PC, complementary and alternative medicine, and spirituality/religiosity were key components influencing QOL in advanced cancer in developing countries. Thesis' findings also showed that QOL domains: emotional functioning, fatigue, pain, insomnia, and appetite loss were associated with QOL score in advanced cancer patients. Therefore, oncologists should focus on patients' specific needs to increase patients' QOL.
Capability-Deprivation as Determinant of Underweight in Children: Perspectives from an Indian Case-Study
Creators: name: Ardeni, Pier Giorgio
name: Tinonin, Cecilia
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: SECS-P/01 Economia politica

description: The Capability Approach argues individual advantage should be evaluated in the space of freedom of choice, that is in the space of capability. Yet, empirical applications are hampered by the lack of appropriate data and indicators. This paper aims at providing a reliable and valid indicator measuring deprivation of capability as lack of relative autonomy. Furthermore, it explores its usefulness through an ad hoc case study. Thus, it analyzes the
role of women's relative autonomy for the underweight of infants and young children in a rural patriarchal community of India. Inspired by the extended model of care presented in Engle, Menon and Haddad (1999), we estimate regression coefficients in the model by Ordinary Least Square on a probabilistic random sample purposely collected. Results point out autonomy in mobility in a patriarchal society is negatively associated with the nutritional status of children. The norm-based economic framework suggests focusing on ‘external capabilities’ at the community level for policy interventions aimed at increasing freedom of choice of present and future generations.
Längsschnittliche Messung der posturalen Kontrolle und Stabilität von Patienten nach vorderer Kreuzbandoperation
Creators: name: Schaffrath, Nicola Elisa Caterina
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2022
Subjects: subject: 610

description: Das primäre Ziel dieser Studie bestand in der Analyse der posturalen Regulation und Stabilität von Patienten (n=30), nach Rekonstruktion des vorderen Kreuzbandes (VKBR) und Rehabilitation, über einen Beobachtungszeitraum von zwei Jahren. Die Haltungsregulation wurde prä-, sowie 6 Wochen, 12 Wochen, 6 Monate, 1 Jahr und 2 Jahre postoperativ getestet. Der Vergleich der posturalen Parameter erfolgte gematched (Geschlecht, Alter, Größe) zu asymptomatischen Probanden. Signifikante Zeiteffekte (prävs. zwei Jahre postoperativ) wurden für den Gewichtsverteilungsindex (WDI), Synchronisation, mediolaterale Gewichtsverteilung, Stabilitätsindikator (ST), das visuelle/ nigrostriatale System und das peripher-vestibuläre System gefunden. Die signifikantesten Unterschiede zur Vergleichsstichprobe wurden für ST (präoperativ: ηp² = 0,126; sechs Wochen postoperativ: ηp² = 0,103) und WDI (präoperativ: ηp² = 0,180; sechs Wochen postoperativ: ηp² = 0,174) beobachtet. Die Operation und Rehabilitation beeinflussen posturale Subsysteme, die posturale Stabilität, Gewichtsverteilung und Fußsynchronisation.
description: The primary aim of this study was to evaluate the postural regulation and stability of patients (n=30), after anterior cruciate ligament reconstruction (ACLR) and rehabilitation, over a two year follow up period. Postural regulation was tested preoperative, as well as 6 weeks, 12 weeks, 6 months, 1 year and 2 years after reconstruction. Postural parameters were compared matched (sex, age, height) to asymptomatic subjects. Significant time effects (pre- vs. two years postoperative) were found for weight distribution index (WDI), synchronization, mediolateral weight distribution, stability indicator (ST), visual/nigrostriatal system, and peripheral-vestibular system. The most significant differences to the matched sample were observed for ST (preoperative: ηp² = 0.126; six weeks postoperative: ηp² = 0.103) and WDI (preoperative: ηp² = 0.180; six weeks postoperative: ηp² = 0.174). ACLR and rehabilitation influence postural subsystems, postural stability, weight distribution and foot synchronization.
Clinical ketosis and standing behaviour in transition dairy cows
Creators: name: Itle, Amber Joelle
Publisher: name: University of British Columbia
Year: 2014

description: Ketosis is a common disease in dairy cattle, especially in the days after calving, and is often undiagnosed. The objective of this study was to compare the standing behaviour of dairy cows with and without ketosis during the days around calving to determine if changes in this behaviour could be useful in the early identification of sick cows. Serum beta-hydroxybutyrate (BHBA) was measured in 370 cows on three commercial dairy farms, twice weekly from 2 to 21 d after calving. Standing behaviour was measured from 7 d before calving to 21 d after calving using data loggers. Retrospectively, 19 cows with subclinical ketosis (BHBA ≥1.2 and ≤ 2.9 mmol/L) and 20 cows with clinical ketosis (BHBA >2.9 mmol/L) were matched by farm with 39 non-ketotic cows (BHBA <1.2 mmol/L). Five periods were defined for the statistical analyses: wk -1 (d -7 to d -1), d 0 (day of calving), wk +1 (d 1 to d 7), wk +2 (d 8 to d 14) and wk +3 (d 15 to d 21). The first signs of both subclinical and clinical ketosis occurred 4.5 ± 2.0 d after calving. The standing behaviour of cows diagnosed with subclinical ketosis was not different than non-ketotic cows during any period. Total daily standing time was longer for clinically ketotic cows relative to non-ketotic cows during wk +1 (14.4 ± 0.8 vs. 12.2 ± 0.7 h/d) and d 0 (17.6 ± 1.0 vs. 13.4 ± 0.7 h/d) but was not different during the other periods. Clinically ketotic cows exhibited fewer standing bouts compared to non-ketotic cows on d 0 only (12.8 ± 2.2 vs. 18.1 ± 1.6 bouts/d). Average standing bout duration was also longer for clinically ketotic cows on d 0 compared to non-ketotic cows (64.9 vs. 40.4 min/bout) but was not different during the other periods. These results suggest that differences in standing behaviour before calving may be useful for the early detection of clinical ketosis in dairy cows.
Transchromatic generalized character maps
Creators: name: Stapleton, Nathaniel J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: In "Generalized Group Characters and Complex Oriented Cohomology Theories", Hopkins, Kuhn, and Ravenel develop a way to study cohomology rings of the form E^*(BG) in terms of a character map. The character map can be interpreted as a map of cohomology theories beginning with a height n cohomology theory E and landing in a height 0 cohomology theory with a rational algebra of coefficients that is constructed out of E. In this paper we use the language of p-divisible groups to extend their construction for Morava E-theory so that the character map can land in every height t between 0 and n.
description: Corrected typos. Some proofs written more clearly. Some changes in notation
Hedonic vs Environmental Quality: Which Policy Can Help in
Lowering Pollution Emissions?
Creators: name: Mantovani, Andrea
name: Vergari, Cecilia
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: SECS-P/01 Economia politica

description: In this paper we compare two policy instruments that can be adopted to curb carbon emissions. The first is a conventional pollution tax. The second is an environmental campaign aiming to influence consumers to switch to a green good. We consider two different scenarios. When consumers are characterized by hedonic quality preferences, in this case the pollution tax is more efficient than the campaign. On the contrary, when consumers develop environmental quality preferences, there are cases in which the campaign is preferred. To sum up, while both policy instruments are effective in reducing pollution emissions, their efficiency viewed from a welfare perspective crucially depends on consumers' environmental awareness.
Nesterenko's linear independence criterion for vectors
Creators: name: Fischler, Stéphane
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11J72 (Primary) 11J82, 11J13, 11M06 (Secondary)

description: In this paper we deduce a lower bound for the rank of a family of $p$ vectors in $\R^k$ (considered as a vector space over the rationals) from the existence of a sequence of linear forms on $\R^p$, with integer coefficients, which are small at $k$ points. This is a generalization to vectors of Nesterenko's linear independence criterion (which corresponds to $k=1$), used by Ball-Rivoal to prove that infinitely many values of Riemann zeta function at odd integers are irrational. The proof is based on geometry of numbers, namely Minkowski's theorem on convex bodies.
description: 22 pages. With respect to the first version, the main result has been generalized; the application to zeta values is now much stronger, and its proof is postponed to another paper