cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cancel Culture – Herausforderung für die politische Öffentlichkeit (KDK Research Papers Nr. 1-2023. Merseburg)
Creators: name: Kochtova, Yanina
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: Cancel Culture
subject: Politische Öffentlichkeit
subject: Soziale Medien
subject: Digitale Kultur
subject: DDC::3** Sozialwissenschaften::30* Sozialwissenschaften, Soziologie::306 Kultur und Institutionen

description: Cancel Culture ist ein kontroverses und viel diskutiertes Phänomen, das in den Medien und der öffentlichen Debatte immer präsenter wird. Während die einen sie als Mittel zur Bekämpfung von Diskriminierung und Missständen ansehen, befürchten andere hingegen eine Einschränkung der Meinungsfreiheit und eine Verengung des Meinungskorridors. Diese Arbeit untersucht die Entstehung, den Kontext und die Auswirkungen von Cancel Culture. Sie konzentiert sich hierbei mit zwei Fallbeispielen auf den deutschsprachigen Diskurs und analysiert, wie sich in der digitalen Kultur die politische Öffentlichkeit transformiert und soziale Medien die öffentliche Diskussion beeinflussen. Dabei stellt die Arbeit heraus, dass Cancel Culture als eine Reaktion auf die Verschiebungen gesellschaftlicher Machtverhältnisse und einer Demokratisierung der öffentlichen Debatte sowie als deren Ausdruck verstanden werden kann.
Asymptotic Performance of Thompson Sampling in the Batched Multi-Armed Bandits
Creators: name: Kalkanli, Cem
name: Ozgur, Ayfer
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We study the asymptotic performance of the Thompson sampling algorithm in the batched multi-armed bandit setting where the time horizon $T$ is divided into batches, and the agent is not able to observe the rewards of her actions until the end of each batch. We show that in this batched setting, Thompson sampling achieves the same asymptotic performance as in the case where instantaneous feedback is available after each action, provided that the batch sizes increase subexponentially. This result implies that Thompson sampling can maintain its performance even if it receives delayed feedback in $ω(\log T)$ batches. We further propose an adaptive batching scheme that reduces the number of batches to $Θ(\log T)$ while maintaining the same performance. Although the batched multi-armed bandit setting has been considered in several recent works, previous results rely on tailored algorithms for the batched setting, which optimize the batch structure and prioritize exploration in the beginning of the experiment to eliminate suboptimal actions. We show that Thompson sampling, on the other hand, is able to achieve a similar asymptotic performance in the batched setting without any modifications.
description: This work was presented in 2021 IEEE International Symposium on Information Theory (ISIT)
title: Tratamiento endovascular urgente en la hemorragia aguda
Creators: name: Cervera Araez, Alicia
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Haemorrhage
subject: Embolisation
subject: Arterial access
subject: CT
subject: Catheter arteriography
subject: Vascular
subject: Interventional vascular

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
Presentamos las embolizaciones intraarteriales urgentes realizadas por la sección de RXIV del Hospital de la Ribera (Valencia) desde el año 2008 hasta Septiembre 2013. Analizamos las indicaciones,
materiales empleados,
resultados y...
The random phase property and the Lyapunov spectrum for disordered multi-channel systems
Creators: name: Roemer, Rudolf A
name: Schulz-Baldes, Hermann
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: A random phase property establishing a link between quasi-one-dimensional random Schroedinger operators and full random matrix theory is advocated. Briefly summarized it states that the random transfer matrices placed into a normal system of coordinates act on the isotropic frames and lead to a Markov process with a unique invariant measure which is of geometric nature. On the elliptic part of the transfer matrices, this measure is invariant under the full hermitian symplectic group of the universality class under study. While the random phase property can up to now only be proved in special models or in a restricted sense, we provide strong numerical evidence that it holds in the Anderson model of localization. A main outcome of the random phase property is a perturbative calculation of the Lyapunov exponents which shows that the Lyapunov spectrum is equidistant and that the localization lengths for large systems in the unitary, orthogonal and symplectic ensemble differ by a factor 2 each. In an Anderson-Ando model on a tubular geometry with magnetic field and spin-orbit coupling, the normal system of coordinates is calculated and this is used to derive explicit energy dependent formulas for the Lyapunov spectrum.
Per un'etica della letteratura: 
la cornice il doppio legame nell'opera di 
J. M. Coetzee
Creators: name: Pizzinat, Eleonora <1980>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: L-FIL-LET/14 Critica letteraria e letterature comparate

description: The elusive fiction of J. M. Coetzee is not a work in which you can read fixed ethical stances. I suggest testing the potentialities of a logic based on frames and double binds in Coetzee's novels. A double bind is a dilemma in communication which consists on tho conflicting messages, with the result that you canât successfully respond to neither. Jacques Derrida highlighted the strategic value of a way of thinking based on the double bind (but on frames as well), which enables to escape binary thinking and so it opens an ethical space, where you can make a choice out of a set of fixed rules and take responsibility for it. In Coetzeeâs fiction the author himself can be considered in a double bind, seeing that he is a white South African writer who feels that his âtaskâ canât be as simply as choosing to represent faithfully the violence and the racism of the apartheid or of choosing to give a voice to the oppressed. Good intentions alone do not ensure protection against entering unwittingly into complicity with the dominant discourse, and this is why is important to make the frame in which one is always situated clearly visible and explicit. The logic of the double bind becomes the way in which moral problem are staged in Coetzeeâs fiction as well: the opportunity to give a voice to the oppressed through the same language which co-opted to serve the cause of oppression, a relation with the otherness never completed, or the representability of evil in literature, of the secret and of the paradoxical implications of confession and forgiveness.
Comparative Analysis of Alternative Hybrid Systems for Automotive Applications
Creators: name: Trivic, Igor <1978>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: ING-IND/08 Macchine a fluido

description: The main objective of this work was to investigate the impact of different hybridization concepts and levels of hybridization on fuel economy of a standard road vehicle where both conventional and non-conventional hybrid architectures are treated exactly in the same way from the point of view of overall energy flow optimization. Hybrid component models were developed and presented in detail as well as the simulations results mainly for NEDC cycle. The analysis was performed on four different parallel hybrid powertrain concepts: Hybrid Electric Vehicle (HEV), High Speed Flywheel Hybrid Vehicle (HSF-HV), Hydraulic Hybrid Vehicle (HHV) and Pneumatic Hybrid Vehicle (PHV). In order to perform equitable analysis of different hybrid systems, comparison was performed also on the basis of the same usable system energy storage capacity (i.e. 625kJ for HEV, HSF and the HHV) but in the case of pneumatic hybrid systems maximal storage capacity was limited by the size of the systems in order to comply with the packaging requirements of the vehicle. The simulations were performed within the IAV Gmbh - VeLoDyn software simulator based on Matlab / Simulink software package. Advanced cycle independent control strategy (ECMS) was implemented into the hybrid supervisory control unit in order to solve power management problem for all hybrid powertrain solutions. In order to maintain State of Charge within desired boundaries during different cycles and to facilitate easy implementation and recalibration of the control strategy for very different hybrid systems, Charge Sustaining Algorithm was added into the ECMS framework. Also, a Variable Shift Pattern VSP-ECMS algorithm was proposed as an extension of ECMS capabilities so as to include gear selection into the determination of minimal (energy) cost function of the hybrid system. Further, cycle-based energetic analysis was performed in all the simulated cases, and the results have been reported in the corresponding chapters.
Which RESTful API Design Rules Are Important and How Do They Improve Software Quality? A Delphi Study with Industry Experts
Creators: name: Kotstein, Sebastian
name: Bogner, Justus
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Several studies analyzed existing Web APIs against the constraints of REST to estimate the degree of REST compliance among state-of-the-art APIs. These studies revealed that only a small number of Web APIs are truly RESTful. Moreover, identified mismatches between theoretical REST concepts and practical implementations lead us to believe that practitioners perceive many rules and best practices aligned with these REST concepts differently in terms of their importance and impact on software quality. We therefore conducted a Delphi study in which we confronted eight Web API experts from industry with a catalog of 82 REST API design rules. For each rule, we let them rate its importance and software quality impact. As consensus, our experts rated 28 rules with high, 17 with medium, and 37 with low importance. Moreover, they perceived usability, maintainability, and compatibility as the most impacted quality attributes. The detailed analysis revealed that the experts saw rules for reaching Richardson maturity level 2 as critical, while reaching level 3 was less important. As the acquired consensus data may serve as valuable input for designing a tool-supported approach for the automatic quality evaluation of RESTful APIs, we briefly discuss requirements for such an approach and comment on the applicability of the most important rules.
description: Accepted at the 15th Symposium and Summer School On Service-Oriented Computing (SummerSoC'21)
Nutzungsweisen von VR in digitaler Lehre. Eine explorative Studie mit Mozilla Hubs (KDK Research Papers Nr. 2-2023. Merseburg)
Creators: name: Pfennig, Jonas
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: Digitale Lehre
subject: Virtuelle Realität
subject: Grounded Theory
subject: DDC::3** Sozialwissenschaften::37* Bildung und Erziehung

description: Die Arbeit beschäftigt sich mit der Integration immersiver virtueller Realitäten (iVR) in die digitale Hochschullehre. Im Zuge der COVID-19-Pandemie hat sich die Notwendigkeit digitaler Lehrmethoden verdeutlicht, was zunehmend den Fokus auf die Evaluierung und Implementierung innovativer technischer Mittel lenkt. Während sich bisherige Ansätze oft auf einfache Online-Formate beschränken, erforscht der Autor in seiner explorativen Studie an der Hochschule Merseburg die Nutzung von iVR mittels Head-Mounted-Displays in einer Vorlesung auf Mozilla Hubs. Die Ergebnisse der Studie spiegeln sich in fünf Kernkategorien wider: technische Hindernisse, Ablenkungen, soziale Interaktionen, Vorlesungsformat sowie die Einbindung von iVR in die digitale Lehre. Die Studie zeigt, dass iVR in der Hochschullehre ein vielversprechendes Potenzial bietet, jedoch mit technischen, konzeptionellen und didaktischen Herausforderungen einhergeht. Die gewonnen Erkenntnisse können als Grundlage für die Weiterentwicklung von Lehrkonzepten dienen und bieten Anknüpfungspunkte für zukünftige Forschung.
Ins Werden geworfen. Vilém Flussers Verortung des Menschen (KDK Research Papers Nr. 3-2023. Merseburg)
Creators: name: Mauer, Joana
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: Digitalität
subject: Digitale Kultur
subject: Medienanthropologie
subject: Anthropomedialität
subject: DDC::1** Philosophie und Psychologie::10* Philosophie

description: Mit der Digitalität wird die Wirklichkeit zunehmend granular: sie löst sich immer mehr in ihre Bestandteile auf, wie Pixel, Quanten, Bits oder Gene. Diese neue Auflösung der Welt ist jedoch von doppelbödiger Art, denn das Zeitalter der Digitalität zeichnet sich nicht nur durch eine höhere Auflösung seiner technologischen und wissenschaftlichen Bilder aus, sondern auch durch eine Auflösung der gewohnten Welt-, Sozial- und Selbstverhältnisse. Ausgehend von den Ideen und Vorstellungen des Medienphilosophen Vilém Flusser (1920-1991) untersucht die Arbeit anhand dessen Stufenmodells der Mediengenese die krisenhaften Momente der medienkultur-anthropologischen Entwicklung. An der Schnittstelle von Flussers Theorien und dem zeitgenössischen anthropomedialen Diskurs navigiert sie durch die Dimensionen und Bedeutungen der aktuellen Krise, betont wesentliche Aspekte des aufkommenden, digitalen Zeitalters und versucht sich schließlich an einer medienanthropologischen Verortung des postmodernen Subjekts in Anbetracht seiner gegenwärtigen medienkulturellen Lage.
title: Hemoptisis amenazante de causa infrecuente: hallazgos radiológicos y tratamiento percutáneo.
Creators: name: Rodriguez Antuña, Jorge
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Aneurysms
subject: Acute
subject: Haemorrhage
subject: Diagnostic procedure
subject: Embolisation
subject: Interventional vascular
subject: Vascular
subject: Respiratory system
subject: CT-Angiography
subject: Catheter arteriography

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
1.- Describir los hallazgos radiológicos de causas infrecuentes de hemoptisis amenazante y conocer sus diagnósticos diferenciales. 2.- Presentar aquellas claves radiológicas necesarias para indicar y planificar el...
Heteromysis (Heteromysis) S. I. Smith 1873
Creators: name: Daneliya, Mikhail E.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Mysida
Mysidae
Heteromysis

description: Heteromysis (Heteromysis) S. I. Smith, 1873
 Heteromysis (Heteromysis).— Băcescu, 1968: 234−237; 1979: 145.— Bravo & Murano, 1996: 483.— Price & Heard, 2000: 88, 92, 93.— Wittmann, 2000: 287; 2001: 94, 104; 2008: 368; 2020: 142, 154.— Wittmann & Wirtz, 2017: 149.— Wittmann & Griffiths, 2017: 17, 39−40.— Hanamura & Kase, 2001a: 17.— Daneliya, 2012: 146.— Hanamura et al., 2012: 17.— San Vicente & Monniot, 2014: 340.—Levesque et al., 2016: 2.
 Type species. Heteromysis formosa S. I. Smith, 1873.
 Diagnosis. Ischium of pereopod 1 endopod two to three times as long as wide; medially without denticles. Pleopods unmodified, setose in both sexes. Uropodal endopod shorter than exopod.
 Comparison. The subgenus Heteromysis (Heteromysis) as currently composed does not have unique characters common to all its members, representing a heterogeneous group. Its members are distinguished from the species of the subgenus Heteromysis (Gnathomysis) by the smooth and narrow ischium of pereopod 1 endopod (nearly as long as wide, with denticles in Gnathomysis), and by the uropodal endopods being shorter than exopods (equal or slightly longer in Gnathomysis). From the members of the subgenus Heteromysis (Olivemysis) the species of Heteromysis s. str. are distinguished by non-modified pleopods.
 Remarks. Băcescu (1968) designated the subgenus Heteromysis s. str., based on absence of the pleopod modifications. This has remained the only reason, by which newly described species not fitting into the other known Heteromysis subgenera, have been included in the nominotypical subgenus (Wittmann & Griffiths, 2017).
 I have attempted, in addition to the study of the Tasman Sea species, to compare all known Heteromysis from the available literature. A number of rather clearly defined groups can be established within the subgenus. However, because of insufficient descriptions and illustrations, some species remain incertae sedis, and the taxonomic status of such groups can be clarified only after the study of actual material. Meanwhile, it is possible to define one such group, which includes all the Tasman Sea species, and which I call the microps -group.
 Composition. The nominate subgenus of Heteromysis currently contains 31 species, among which four species can be found in the Tasman Sea: Heteromysis (H.) communis Băcescu, 1986, Heteromysis (H.) macropsis Pillai, 1961, Heteromysis (H.) keablei sp. nov., Heteromysis (H.) tasmanica.
description: Published as part of Daneliya, Mikhail E., 2021, On the Mysid Crustacean Genus Heteromysis (Mysidae: Heteromysinae) of the Tasman Sea, with Notes on the Tribe Heteromysini, pp. 1-50 in Records of the Australian Museum (Rec. Aust. Mus.) (Rec. Aust. Mus.) 73 (1) on page 8, DOI: 10.3853/j.2201-4349.73.2021.1737, http://zenodo.org/record/5412605
The Great Flood
Creators: name: U.S. Department Of Agriculture
name: U.S. Department Of Agriculture
Publisher: name: Unknown
Year: 1952
Subjects: Resource /Energy Economics and Policy

description: Excerpts from the report: This is a story, in pictures, about the big flood that ravaged most of Kansas and parts of neighboring States in July 1951. It is also a story about floods, in general. More important, this pamphlet depicts some of the methods by which flood and sediment damages may be reduced. Flood control is a national problem, because floods are not confined to any particular localities, States, or regions. The Federal Government has been actively engaged in flood-control work for several decades. Within recent years, the Congress has passed legislation that provides for a comprehensive attack on this problem. Control of waters from where the raindrops first strike the ground until they reach the seas is the objective. Only a few of the proven methods of reducing flood damage are depicted here. These should give a general idea, however, about how we may alleviate such disasters in the future.
Visualization of Acoustic Power Flow in Suspended Thin-film Lithium Niobate Phononic Devices
Creators: name: Lee, Daehun
name: Meyer, Shawn
name: Gong, Songbin
name: Lu, Ruochen
name: Lai, Keji
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report direct visualization of gigahertz-frequency acoustic waves in lithium niobate phononic circuits. Primary propagation parameters, such as the power flow angle (PFA) and propagation loss (PL), are measured by transmission-mode microwave impedance microscopy (TMIM). Using fast Fourier transform, we can separately analyze forward and backward propagating waves and quantitatively evaluate the propagation loss. Our work provides insightful information on the propagation, diffraction, and attenuation in piezoelectric thin films, which is highly desirable for designing and optimizing phononic devices for microwave signal processing.
description: 12 pages, 4 figures
Transformations of bridging ligands in diiron complexes: unconventional routes to new functionalized multisite bound organic frames
Creators: name: Salmi, Mauro <1980>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: CHIM/03 Chimica generale e inorganica

description: The main scope of this Ph.D. thesis has concerned the possible transformations of bridging ligands in diiron complexes, in order to explore unconventional routes to the synthesis of new functionalized multisite bound organic frames.
The results achieved during the Ph.D. can be summarized in the following points:
1)	We have extended the assembling between small unsaturated molecules and bridging carbyne ligands in diiron complexes to other species. In particular, we have investigated the coupling between olefins and thiocarbyne, leading to the synthesis of thioallylidene bridging diiron complexes. Then, we have extended the study to the coupling between olefins and aminocarbyne. This result shows that the coupling between activated olefins and heteroatom substituted bridging carbynes has a general character.
2)	As we have shown, the coupling of bridging alkylidyne ligands with alkynes and alkenes provides excellent routes to the synthesis of bridging C3 hydrocarbyl ligands. As a possible extension of these results we have examined the synthesis of C4 bridging frames through the combination of bridging alkylidynes with allenes. Also in this case the reaction has a general character.
3)	Diiron complexes bearing bridging functionalized C3 organic frames display the presence of donor atoms, such as N and S, potentially able to coordinate unsaturated metal fragments. Thus, we have studied the possibility for these systems to act as ‘organometallic ligands’, in particular towards Pd and Rh.
4)	The possibility of releasing the organic frame from the bridging coordination appears particularly appealing in the direction of a metal-assisted organic synthesis. Within this field, we have investigated the possibility of involving the C3 bridging ligand in cycloaddition reactions with alkynes, with the aim of generating variously functionalized five-membered cycles. The [3+2] cyclization does not lead to the complete release of the organic fragment but rather it produces its transformation into a cyclopentadienyl ring, which remains coordinated to one Fe atom. This result introduces a new approach to the formation of polyfunctionalised ferrocenes.
5)	Furthermore, I have spent a research period of about six months at the Department of Inorganic Chemistry of the Barcelona University, under the supervision of Prof. Concepción López, with the aim of studying the chemistry of polydentate ferrocenyl ligands and their use in organometallic synthesis.
The nomenclature of Erysiphe penicillata revisited – a story of confusion and misinterpretation
Creators: name: Braun, Uwe
name: Mitchell, James K.
name: Bensch, Konstanze
Publisher: name: Schlechtendalia
Year: 2023
Subjects: subject: 000

description: Braun, U., Mitchell, J. K. & Bensch, K. 2023: Die Nomenklatur von Erysiphe penicillata erneut aufgegriffen – eine Geschichte von Verwechslung und falscher Interpretation. Schlechtendalia 40: 353–355. Die verworrene Geschichte der Nomenklatur und Taxonomie des Erlen-Mehltaus, der heute zu Erysiphe penicillata gestellt wird, wird eingehend diskutiert, einschließlich des nomenklatorischen Status der betreffenden Namen und aller Angelegenheiten, die sich auf die Typisierung beziehen. ‘Erysiphe penicillata Schtdl. nom. sanct.‘ ist die korrekte Bezeichnung dieses Mehltaus.
description: Braun, U., Mitchell, J. K. & Bensch, K. 2023: The nomenclature of Erysiphe penicillata revisited – a story of confusion and misinterpretation. Schlechtendalia 40: 353–355. The confused nomenclatural and taxonomic history of the alder powdery mildew nowadays assigned to Erysiphe penicillata is discussed in detail, including nomenclatural status of the names concerned, and all matters relating to the typification. ‘Erysiphe penicillata Schltdl. nom. sanct.’ is the correct denomination for this powdery mildew.
Exact Algorithms for Different Classes of Vehicle Routing Problems
Creators: name: Roberti, Roberto <1982>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: MAT/09 Ricerca operativa

description: We deal with five problems arising in the field of logistics: the Asymmetric TSP (ATSP), the TSP with Time Windows (TSPTW), the VRP with Time Windows (VRPTW), the Multi-Trip VRP (MTVRP), and the Two-Echelon Capacitated VRP (2E-CVRP).
The ATSP requires finding a lest-cost Hamiltonian tour in a digraph. We survey models and classical relaxations, and describe the most effective exact algorithms from the literature. A survey and analysis of the polynomial formulations is provided. The considered algorithms and formulations are experimentally compared on benchmark instances.
The TSPTW requires finding, in a weighted digraph, a least-cost Hamiltonian tour visiting each vertex within a given time window. We propose a new exact method, based on new tour relaxations and dynamic programming. Computational results on benchmark instances show that the proposed algorithm outperforms the state-of-the-art exact methods.
In the VRPTW, a fleet of identical capacitated vehicles located at a depot must be optimally routed to supply customers with known demands and time window constraints. Different column generation bounding procedures and an exact algorithm are developed. The new exact method closed four of the five open Solomon instances.
The MTVRP is the problem of optimally routing capacitated vehicles located at a depot to supply customers without exceeding maximum driving time constraints. Two set-partitioning-like formulations of the problem are introduced. Lower bounds are derived and embedded into an exact solution method, that can solve benchmark instances with up to 120 customers.
The 2E-CVRP requires designing the optimal routing plan to deliver goods from a depot to customers by using intermediate depots. The objective is to minimize the sum of routing and handling costs. A new mathematical formulation is introduced. Valid lower bounds and an exact method are derived. Computational results on benchmark instances show that the new exact algorithm outperforms the state-of-the-art exact methods.
title: Влияние многократного отражения света на точность корреляционной спектроскопии при изменении его интенсивности
title: Influence of Multiple Light Reflection on the Accuracy of the Correlation Spectroscopy with the Change of Light Intensity
Creators: name: Кочеров, С. А.
name: Манина, Елена Анатольевна
name: Шадрин, Геннадий Анатольевич
Publisher: name: Издательский центр СурГУ
Year: 2021

description: В статье рассмотрен вопрос тестирования и оптимизации автоматизированного анализатора мутных сред. Проведенные факторные эксперименты показывают, что точность корреляционной спектроскопии рассеянного света с помощью предлагаемого метода анализа видеофайла позволяет получить результат в пределах допустимой погрешности. При соблюдении качества съемки и статистически точного количества отсчетов фотонов получен корректный расчет размера частиц, соответствующий результатам, полученным другими способами.
description: The article considers the issue of testing and optimization of the automated analyzer of turbid media. The conducted factor experiments show that the accuracy of the proposed method of correlation spectroscopy of scattered light by analyzing a video file allows obtaining results within the permissible error. If the number of samples corresponding to the statistical accuracy and the quality of the survey are observed, the particle size is calculated correctly and corresponds to the results obtained by other methods.
Development of parallelizable flood inundation models for large scale analysis
Creators: name: Dottori, Francesco <1980>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: ICAR/02 Costruzioni idrauliche e marittime e idrologia

description: Flood disasters are a major cause of fatalities and economic losses, and several studies indicate that global flood risk is currently increasing. In order to reduce and mitigate the impact of river flood disasters, the current trend is to integrate existing structural defences  with non structural measures. This calls for a wider application of advanced hydraulic models for flood hazard and risk mapping, engineering design, and flood forecasting systems.
Within this framework, two different hydraulic models for large scale analysis of flood events have been developed. The two models, named CA2D and IFD-GGA, adopt an integrated approach based on the diffusive shallow water equations and a simplified finite volume scheme. The models are also designed for massive code parallelization, which has a key importance in reducing run times in large scale and high-detail applications.
The two models were first applied to several numerical cases, to test the reliability and accuracy of different model versions. Then, the most effective versions were applied to different real flood events and flood scenarios. 
The IFD-GGA model showed serious problems that prevented further applications. On the contrary, the CA2D model proved to be fast and robust, and able to reproduce 1D and 2D flow processes in terms of water depth and velocity. In most applications the accuracy of model results was good and adequate to large scale analysis. Where complex flow processes occurred local errors were observed, due to the model approximations. However, they did not compromise the correct representation of overall flow processes.
In conclusion, the CA model can be a valuable tool for the simulation of a wide range of flood event types, including lowland and flash flood events.
Phase engineering of chirped rogue waves in Bose-Einstein condensates with a variable scattering length in an expulsive potential
Creators: name: Kengne, Emmanuel
name: Malomed, Boris A.
name: Liu, Wu-Ming
Publisher: name: arXiv
Year: 2021
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We consider a cubic Gross-Pitaevskii (GP) equation governing the dynamics of Bose-Einstein condensates (BECs) with time-dependent coefficients in front of the cubic term and inverted parabolic potential. Under a special condition imposed on the coefficients, a combination of phase-imprint and modified lens-type transformations converts the GP equation into the integrable Kundu-Eckhaus (KE) equation with constant coefficients, which contains the quintic nonlinearity and the Raman-like term producing the self-frequency shift. The condition for the baseband modulational instability of CW states is derived, providing the possibility of generation of chirped rogue waves (RWs) in the underlying BEC model. Using known RW solutions of the KE equation, we present explicit first- and second-order chirped RW states. The chirp of the first- and second-order RWs is independent of the phase imprint. Detailed solutions are presented for the following configurations: (i) the nonlinearity exponentially varying in time; (ii) time-periodic modulation of the nonlinearity; (iii) a stepwise time modulation of the strength of the expulsive potential. Singularities of the local chirp coincide with valleys of the corresponding RWs. The results demonstrate that the temporal modulation of the s-wave scattering length and strength of the inverted parabolic potential can be used to manipulate the evolution of rogue matter waves in BEC.
Comparative transcriptomics for the study of cleptoparasitism in bees: a case study in Coelioxoides waltheriae and their host Tetrapedia diversipes (Hymenoptera: Apidae) - Assemblies
Creators: name: Ricardo, Paulo Cseri
Publisher: name: figshare
Year: 2023
Subjects: Genomics and transcriptomics
Gene expression (incl. microarray and other genome-wide approaches)
Animal behaviour
Invertebrate biology

description: Assemblies and set of SuperTranscripts resulting from the work "Comparative transcriptomics for the study of cleptoparasitism in bees: a case study in Coelioxoides waltheriae and their host Tetrapedia diversipes (Hymenoptera: Apidae)". It includes five files:
 - Coelioxoides_waltheriae_denovo.fasta: De novo transcriptome assembly of the species Coelioxoides waltheriae;
 - Coelioxoides_waltheriae_sT.fasta: Set of SuperTranscripts obtained from the de novo assembly of Coelioxoides waltheriae;
 - Tetrapedia_diversipes_genomeguided_denovo.fasta: Reference guided de novo transcriptome assembly of the species Tetrapedia diversipes;
 - Tetrapedia_diversipes_refguided.fasta: Reference-guided transcriptome assembly of the species Tetrapedia diversipes;
 - Tetrapedia_diversipes_sT.fasta: Set of SuperTranscripts obtained from the reference guided de novo and reference-guided assemblies of Tetrapedia diversipes.
Extensile to contractile transition in active microtubule-actin composites generates layered asters with programmable lifetimes
Creators: name: Berezney, John
name: Goode, Bruce L.
name: Fraden, Seth
name: Dogic, Zvonimir
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We study a reconstituted composite system consisting of an active microtubule network interdigitated with a passive network of entangled F-actin filaments. Increasing viscoelasticity of the F-actin network controls the emergent dynamics, inducing a transition from turbulent-like flows to bulk contractions. At intermediate F-actin concentrations, where the active stresses change their symmetry from anisotropic extensile to isotropic contracting, the composite separates into layered asters that coexist with the background turbulent fluid. Contracted onion-like asters have a radially extending microtubule-rich cortex that envelops alternating layers of microtubules and F-actin. The self-regulating layered organization survives aster merging events, which are reminiscent of droplet coalescence, and suggest the presence of effective surface tension. Finally, the layered asters are metastable structures. Their lifetime, which ranges from minutes to hours, is encoded in the material properties of the composite. Taken together, these results challenge the current models of active matter. They demonstrate that the self-organized dynamical states and patterns, which are evocative of those observed in the cytoskeleton, do not require precise biochemical regulation but can arise due to purely mechanical interactions of actively driven filamentous materials.
description: 23 pages, 11 figure
title: Enfermedad diverticular y Diverticulitis aguda. Algoritmo de manejo.
Creators: name: Zapata Samaca, Jairo Andrés
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Infection
subject: Diverticula
subject: Acute
subject: Drainage
subject: Decision analysis
subject: Contrast agent-intravenous
subject: Ultrasound
subject: CT
subject: Percutaneous
subject: Emergency
subject: Colon
subject: Abdomen

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Revisar la fisiopatología y clasificación de la enfermedad diverticular (ED) y la etiopatogenia y clasificación de la diverticulitis aguda (DA),
mostrando los hallazgos por imagen y su contexto clínico.
Recordamos el diagnóstico diferencial a...
title: Lesiones traumáticas de arteria vertebral: cuando sospecharlas y como diagnosticarlas
Creators: name: Cullacciati Asi, Antonella
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Trauma
subject: Vascular
subject: CT-Angiography

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Los objetivos de esta presentación son: Describir los mecanismos asociados a lesiones traumáticas de laarteria vertebral. Destacar los hallazgos radiológicos que deben alertarnos sobre una posible lesión a nivel de arterias vertebrales....
Shadows and Soft Exchange in Celestial CFT
Creators: name: Kapec, Daniel
name: Mitra, Prahar
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study exponentiated soft exchange in $d+2$ dimensional gauge and gravitational theories using the celestial CFT formalism. These models exhibit spontaneously broken asymptotic symmetries generated by gauge transformations with non-compact support, and the effective dynamics of the associated Goldstone "edge" mode is expected to be $d$-dimensional. The introduction of an infrared regulator also explicitly breaks these symmetries so the edge mode in the regulated theory is really a $d$-dimensional pseudo-Goldstone boson. Symmetry considerations determine the leading terms in the effective action, whose coefficients are controlled by the infrared cutoff. Computations in this model reproduce the abelian infrared divergences in $d=2$, and capture the re-summed (infrared finite) soft exchange in higher dimensions. The model also reproduces the leading soft theorems in gauge and gravitational theories in all dimensions. Interestingly, we find that it is the shadow transform of the Goldstone mode that has local $d$-dimensional dynamics: the effective action expressed in terms of the Goldstone mode is non-local for $d>2$. We also introduce and discuss new magnetic soft theorems. Our analysis demonstrates that symmetry principles suffice to calculate soft exchange in gauge theory and gravity.
description: 43 pages, 1 figure
Quantifying the Invisible Labor in Crowd Work
Creators: name: Toxtli, Carlos
name: Suri, Siddharth
name: Savage, Saiph
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences
subject: J.4; K.4.2

description: Crowdsourcing markets provide workers with a centralized place to find paid work. What may not be obvious at first glance is that, in addition to the work they do for pay, crowd workers also have to shoulder a variety of unpaid invisible labor in these markets, which ultimately reduces workers' hourly wages. Invisible labor includes finding good tasks, messaging requesters, or managing payments. However, we currently know little about how much time crowd workers actually spend on invisible labor or how much it costs them economically. To ensure a fair and equitable future for crowd work, we need to be certain that workers are being paid fairly for all of the work they do. In this paper, we conduct a field study to quantify the invisible labor in crowd work. We build a plugin to record the amount of time that 100 workers on Amazon Mechanical Turk dedicate to invisible labor while completing 40,903 tasks. If we ignore the time workers spent on invisible labor, workers' median hourly wage was $3.76. But, we estimated that crowd workers in our study spent 33% of their time daily on invisible labor, dropping their median hourly wage to $2.83. We found that the invisible labor differentially impacts workers depending on their skill level and workers' demographics. The invisible labor category that took the most time and that was also the most common revolved around workers having to manage their payments. The second most time-consuming invisible labor category involved hyper-vigilance, where workers vigilantly watched over requesters' profiles for newly posted work or vigilantly searched for labor. We hope that through our paper, the invisible labor in crowdsourcing becomes more visible, and our results help to reveal the larger implications of the continuing invisibility of labor in crowdsourcing.
description: 26 pages, 6 figures, CSCW 2021
'Defending the rights'. An integrated model of collective action for "public water" in Italy
Creators: name: Mazzoni, Davide
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: M-PSI/05 Psicologia sociale

description: In many communities, supplying water for the people is a huge task and the fact that this essential service can be carried out by the private sector respecting the right to water, is a debated issue. This dissertation investigates the mechanisms through which a 'perceived rights violation' - which represents a specific form of perceived injustice which derives from the violation of absolute moral principles – can promote collective action. Indeed, literature on morality and collective action suggests that even if many people apparently sustain high moral principles (like human rights), only a minority decides to act in order to defend them. Taking advantage of the political situation in Italy, and the recent mobilization for "public water" we hypothesized that, because of its "sacred value", the perceived violation of the right to water facilitates identification with the social movement and activism. Through five studies adopting qualitative and quantitative methods, we confirmed our hypotheses demonstrating that the perceived violation of the right to water can sustain activism and it can influence vote intentions at the referendum for 'public water'. This path to collective action coexists with other 'classical' predictors of collective action, like instrumental factors (personal advantages, efficacy beliefs) and anger. The perceived rights violation can derive both from personal values (i.e. universalism) and external factors (i.e. a mobilization campaign). Furthermore, we demonstrated that it is possible to enhance the perceived violation of the right to water and anger through a specifically designed communication campaign. The final chapter summarizes the main findings and discusses the results, suggesting some innovative line of research for collective action literature.
A dynamical analysis of the Taurid Complex: evidence for past orbital convergences
Creators: name: Egal, A.
name: Wiegert, P.
name: Brown, P. G.
name: Spurný, P.
name: Borovička, J.
name: Valsecchi, G. B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The goal of this work is to determine if the dynamics of individual Taurid Complex (TC) objects are consistent with the formation of the complex via fragmentation of a larger body, or if the current orbital affinities between the TC members result from other dynamical processes. To this end, the orbital similarity through time of comet 2P/Encke, fifty-one Near-Earth Asteroids (NEAs) and sixteen Taurid fireballs was explored. Clones of each body were numerically simulated backwards in time, and epochs when significant fractions of the clones of any two bodies approached each other with both a low Minimum Orbit Intersection Distance and small relative velocity were identified. Only twelve pairs of bodies in our sample show such an association in the past 20 000 years, primarily circa 3200 BCE. These include 2P/Encke and NEAs 2004 TG10, 2005 TF50, 2005 UR, 2015 TX24, and several Southern Taurid fireballs. We find this orbital convergence to be compatible with the fragmentation of a large parent body five to six thousand years ago, resulting in the separation of 2P/Encke and several NEAs associated with the TC, as well as some larger meteoroids now recorded in the Taurid stream. However, the influence of purely dynamical processes may offer an alternative explanation for this orbital rapprochement without requiring a common origin between these objects. In order to discriminate between these two hypotheses, future spectral surveys of the TC asteroids are required.
description: This paper has been accepted for publication in MNRAS, on July 30 2021
L'efficienza degli indici azionari: un'analisi empirica
The Efficiency of Stock Indices: Empirical Analysis
Creators: name: Abate, Guido <1981>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: SECS-P/11 Economia degli intermediari finanziari

description: La studio dell’efficienza di un indice azionario ha accresciuto la propria importanza nell’industria dell’asset management a seguito della diffusione dell’utilizzo di benchmark e investimenti indicizzati.
Il presente lavoro valuta il livello di efficienza dei principali indici del mercato azionario statunitense, dell’Area Euro e italiano. Lo studio empirico ricorre a quattro misure di efficienza: il GRS, un test small-sample multivariato fondato sul CAPM; il test large sample di Wald, implementato tramite una simulazione bootstrap; il test GMM, che è stato applicato in una cornice non-gaussiana attraverso una simulazione block bootstrap; la misura di efficienza relativa di Kandel e Stambaugh.
I risultati empirici forniscono una prova evidente della superiore efficienza degli indici equiponderati. Questa conclusione è interpretata sulla base della letteratura scientifica esistente, analizzando le diverse cause di ordine teorico ed empirico che sono state proposte.
description: The study of the efficiency of an index has increased its importance in asset management industry due to the widespread use of benchmarks and indexed investment products.
This thesis evaluates the efficiency level of the most commonly used US, Euro Area and Italian stock indices. The empirical study employs four measures of efficiency: the GRS, a small-sample multivariate test based upon the CAPM; the large-sample Wald test, implemented through a bootstrap simulation; the Generalized Method of Moments test, which has been applied in a non-Gaussian framework through a block bootstrap simulation; and Kandel and Stambaugh’s relative efficiency measure.
The empirical results provide strong evidence of the superior efficiency of equally weighted indices. These findings are interpreted according to the scientific literature available, analyzing the different theoretical and empirical causes that have been proposed.
Risposta Immunitaria Epatite B specifica in pazienti affetti da Epatocarcinoma
Hepatitis B specific Immune Response in patients with hepatocellular carcinoma
Creators: name: Testa, Lilia <1984>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: MED/09 Medicina interna

description: Hepatitis B x protein (HBx) is a non structural, multifunctional protein of hepatitis B virus (HBV) that modulates a variety of host processes.Due to its transcriptional activity,able to alter the expression of growth-control genes,it has been implicated in hepatocarcinogenesis.Increased expression of HBx has been reported on the liver tissue samples of hepatocellular carcinoma (HCC),and a specific anti-HBx immune response can be detected in the peripheral blood of patients with chronic HBV.However,its role and entity has not been yet clarified.Thus,we performed a cross-sectional analysis of anti-HBx specific T cell response in HBV-infected patients  in different  stage of disease.A total of 70 HBV-infected subjects were evaluated:15  affected by chronic hepatitis (CH-median age 45 yrs),14 by cirrhosis (median age 55 yrs),11 with dysplastic nodules (median age 64 yrs),15 with HCC (median age 60 yrs),15 with  IC(median age 53 yrs).All patients were infected by virus genotype D with different levels of HBV viremia and most of them (91%) were HBeAb positive.The HBx-specific T cell response was evaluated by anti-Interferon (IFN)-gamma Elispot assay after in vitro stimulation of peripheral blood mononuclear cells,using 20 overlapping synthetic peptides covering all HBx protein sequence.HBx-specific IFN-gamma-secreting T cells were found in 6 out of 15 patients with chronic hepatitis (40%), 3 out of 14 cirrhosis (21%), in 5 out of 11 cirrhosis with macronodules (54%), and in 10 out of 15 HCC patients (67%). The number of responding patients resulted significantly higher in HCC than IC (p=0.02) and cirrhosis (p=0.02). Central specific region of the protein x was preferentially recognize,between 86-88 peptides. HBx response does not correlate with clinical feature disease(AFP,MELD).The HBx specific T-cell response seems to increase accordingly to progression of the disease, being increased in subjects with dysplastic or neoplastic lesions and can represent an additional tool to monitor the patients at high risk to develop HCC