cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A mixed methods inquiry into the political economy of agriculture and rural areas in Lebanon
Creators: name: Hamade, Kanj <1978>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: AGR/01 Economia ed estimo rurale

description: The present work, then, is concerned with the forgotten elements of the Lebanese economy, agriculture and rural development. It investigates the main problematic which arose from these forgotten components, in particular the structure of the agricultural sector, production technology, income distribution, poverty, food security, territorial development and local livelihood strategies. It will do so using quantitative Computable General Equilibrium (CGE) modeling and a qualitative phenomenological case study analysis, both embedded in a critical review of the historical development of the political economy of Lebanon, and a structural analysis of its economy. 
The research shows that under-development in Lebanese rural areas is not due to lack of resources, but rather is the consequence of political choices. It further suggests that agriculture – in both its mainstream conventional and its innovative locally initiated forms of production – still represents important potential for inducing economic growth and development. In order to do so, Lebanon has to take full advantage of its human and territorial capital, by developing a rural development strategy based on two parallel sets of actions: one directed toward the support of local rural development initiatives, and the other directed toward intensive form of production. In addition to its economic returns, such a strategy would promote social and political stability.
Tradurre la letteratura russa contemporanea per l'infanzia
Creators: name: Nicoli, Simona <1977>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: L-LIN/21 Slavistica

description: Questo lavoro affronta la traduzione della letteratura per l'infanzia. La prima parte teorica si divide tra l'analisi di cosa si intenda per traduzione per l'infanzia, quali siano le problematiche e le particolarità che la caratterizzano, e un'analisi delle specificità della traduzione dal russo all'italiano, con un approfondimento della letteratura russa contemporanea per l’infanzia. La seconda parte, pratica, analizza le traduzioni della stessa dottoranda per calare in esempi pratici le possibilità teoriche analizzate nella prima parte. Vengono affrontati brani dei maggiori scrittori contemporanei, come G. Oster, M. Moskvina, M. Borodickaja, Ju. Nečiporenko e altri.
Caratteristiche fondanti la letteratura per l’infanzia sono l’interazione tra parola e immagine, il ruolo della lettura a voce alta e l’importanza del suono, i nomi parlanti, il doppio destinatario, l’adattamento, il rispetto dei canoni morali e estetici imposti dalla società, il carattere pedagogico. Gli aspetti teorici esaminati sono il traduttore come lettore e la ricerca di un equivalente funzionale come strategia traduttiva.

This thesis is about translation of children’s literature. In the first section, I explore the meanings of   translating for children, and which are its issues and peculiarities; the specificities in translation from Russian into Italian; the background of contemporary Russian Children’s Literature (G. Oster, M. Moskvina, M. Boroditskaya, Yu. Nechiporenko).
In the second part I analyze my translations, in order to give some practical examples of the theoretical strategies I explored in the first section.
Relevant characteristic of children’s literature are: its pedagogical character, interaction between word and image, double addressee, the importance of reading aloud, adaptation, respect of moral and aesthetic canons imposed by the society. The theoretical aspects examined in this thesis involve the issue of the translator seen as reader, and the search of functional equivalents as dominant translation strategy.
La gestione violenta dei conflitti in ambito di coppia
Creators: name: Callà, Rose Marie <1973>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2008
Subjects: SPS/12 Sociologia giuridica, della devianza e mutamento sociale

description: La famiglia rappresenta un micro sistema all’interno del macro sistema società, che vive,
si riproduce, rimane in equilibrio o cade in situazioni di squilibrio, implode e si rigenera,
attraverso gli infiniti feedback comunicativi con l’ambiente esterno. I suoi componenti
sono i medium di tale processo interattivo. Quindi: tutti gli eventi all’interno del nucleo
familiare, compreso il conflitto, non possono considerarsi slegati dalla società
circostante.
La famiglia possiede una dimensione politica che si esplicita nella distribuzione di potere
fra i suoi componenti. Tale distribuzione può assumere sia forme democratiche, che
dispotiche. A forme di distribuzione del potere non democratiche si associano livelli
elevati di conflitto. Quest’ultimo, tuttavia, è una dimensione inevitabile delle associazioni
umane. Ciò che distingue le relazioni – familiari e non – non è tanto la presenza o
assenza del conflitto, quanto piuttosto la modalità di espressione e di gestione di tale
conflittualità. In tal senso, infatti, l’antagonismo relazionale si può tradurre in
aggressione e violenza, prevaricazione, lesione della integrità e della libertà, oppure
divenire occasione di crescita, di confronto, di mediazione e di negoziazione.
La ricerca svolta all’interno del Dottorato in Criminologia dell’ Università di Bologna è
finalizzata, attraverso un’integrazione teorica, ad individuare le variabili intervenienti nel
contesto e nell’esperienza dei conflitti violenti in ambito di coppia, per accertare il loro
eventuale ruolo predittivo del fenomeno.
In particolare, s’indagano le modalità attraverso le quali la condizione socio-strutturale
dei partner di coppia e la costruzione sociale dei ruoli di genere - con la relativa
attribuzione di potere – e le condizioni lavorative, interagiscono nell’ espressione violenta
della conflittualità.
Il collettivo di riferimento - individuato grazie alla collaborazione di associazioni del
privato sociale e di istituzioni pubbliche presenti e operanti nel territorio della Provincia
di Trento eroganti prestazioni eterogenee alle famiglie - è composto da coppie
sposate/conviventi alle quali è stato somministrato un questionario strutturato.
Searching for clusters of targets under stochastic resetting
Creators: name: Calvert, Georgia R.
name: Evans, Martin R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider diffusion under stochastic resetting to the origin in one dimension and compute the mean time to find both of two targets placed either side of the origin. A surprising result is that increasing the distance between two targets can decrease the overall search time. We compute the optimal arrangement of two targets in limiting cases. We generalise to obtain recursive expressions for the mean time to find all of multiple targets. We discuss the relevance to real-world problems of locating multiple targets such as proteins locating clusters of DNA lesions.
description: 9 pages, 3 figures, accepted for European Physical Journal B
Quasi-isometric embedding of Kerr poloidal sub-manifolds
Creators: name: Chantry, L.
name: Dauvergne, F.
name: Temmam, Y.
name: Cayatte, V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 53A05

description: We propose two approaches to obtain an isometric embedding of the poloidal Kerr sub-manifold. The first one relies on the convex integration process using the corrugation from a primitive embedding. This allows us to obtain one parameter family of embeddings reaching the limits of an isometric embedding. The second one consists in consecutive numerical resolutions of the Gauss-Codazzi-Mainardi and frame equations. This method requires geometric assumptions near the equatorial axis of the poloidal sub-manifold to get initial and boundary conditions. The second approach allows to understand some physical properties in the vicinity of a Kerr black hole, in particular the fast increasing ergoregion extent with angular momentum.
description: 32 page, 13 Figures
Distinguishing Magnetized Disc Winds from Turbulent Viscosity through Substructure Morphology in Planet-forming Discs
Creators: name: Wu, Yinhao
name: Chen, Yi-Xian
name: Jiang, Haochang
name: Dong, Ruobing
name: Macías, Enrique
name: Lin, Min-Kai
name: Rosotti, Giovanni P.
name: Elbakyan, Vardan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The traditional paradigm of viscosity-dominated evolution of protoplanetary discs has been recently challenged by magnetized disc winds. However, distinguishing wind-driven and turbulence-driven accretion through observations has been difficult. In this study, we present a novel approach to identifying their separate contribution to angular momentum transport by studying the gap and ring morphology of planet-forming discs in the ALMA continuum. We model the gap-opening process of planets in discs with both viscous evolution and wind-driven accretion by 2D multi-fluid hydrodynamical simulations. Our results show that gap-opening planets in wind-driven accreting discs generate characteristic substructures that differ from those in purely viscous discs. Specifically, we demonstrate that discs, where wind-driven accretion dominates the production of substructures, exhibit significant asymmetries. Based on the diverse outputs of mock images in the ALMA continuum, we roughly divide the planet-induced features into four regimes (moderate-viscosity dominated, moderate-wind dominated, strong-wind dominated, inviscid). The classification of these regimes sets up a potential method to constrain the strength of magnetized disc wind and viscosity based on the observed gap and ring morphology. We discuss the asymmetry feature in our mock images and its potential manifestation in ALMA observations.
description: 11 pages, 6 figures, accepted by MNRAS. Welcome any comments and suggestions!
Valutazione in opera ed in laboratorio della trasmissione laterale nelle tipologie edilizie italiane
Creators: name: Barbaresi, Luca <1977>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2008
Subjects: ING-IND/11 Fisica tecnica ambientale

description: L’attività di ricerca del dottorando è stata rivolta allo studio della trasmissione del rumore per
via strutturale negli edifici. Questo argomento e' di notevole interesse sia fondamentale che
applicativo. Il fenomeno e le problematiche ad essa connesse contribuiscono alla diminuzione
delle prestazioni fonoisolanti, sia per le strutture verticali (usualmente valutate rispetto al
rumore aereo), sia per quelle orizzontali (valutate anche rispetto al rumore impattivo) ed è
tipico degli edifici con struttura portante a telaio e tamponatura in laterizi. Si tratta delle
tipiche tipologie edilizie italiane, per le quali il problema risulta amplificato rispetto ad altre
tipologie.
La metodologia di studio è stata di tipo sperimentale. La scelta è dettata sia dall’insufficiente
avanzamento dello stato dell’arte dei metodi di calcolo teorici, o delle loro versioni numeriche,
sia dalla necessità di disporre di dati certi da confrontare con i valori forniti dai metodi
previsionali semplificati indicati nelle norme UNI (modello CEN); infatti queste ultime sono un
recepimento letterale di quelle europee, sebbene esse si basino su tipologie costruttive,
materiali e tecniche di realizzazione differenti da quelle comunemente in uso in Italia; da qui la
difformità di risultati tra formule previsionali e misurazioni sperimentali.
Al fine di realizzare uno studio completo delle principali casistiche della trasmissione laterale
sono state utilizzate 6 configurazioni in scala reale, con elementi edilizi diversamente collegati
fra loro in modo da simulare i nodi strutturali comunemente realizzati negli edifici. La parte
sperimentale della ricerca è stata svolta presso le “Camere Acustiche di Prova” del Laboratorio
del Lazzaretto “R. Alessi” del DIENCA.
Oltre alle usuali misurazioni di isolamento acustico, sono state eseguite numerose misurazioni
di vibrazione. Infatti, dal confronto dei livelli di velocità di vibrazione dei diversi elementi di una
struttura, rigidamente connessi, è possibile determinare l’indice di riduzione delle vibrazioni Kij
che è la grandezza chiave per modellizzare il fenomeno della trasmissione laterale.
La possibilità di determinare sperimentalmente tali valori nel contesto di un lavoro di ricerca
finalizzato a determinare i meccanismi di propagazione delle vibrazioni nelle strutture,
permette di valutare la precisione delle formule previsionali del modello CEN e di proporne
varianti e integrazioni. I valori di Kij così determinati assumono grande importanza anche in
fase di progetto, fornendo dati attendibili da utilizzare per la progettazione acustica degli
edifici.
A plastic feedthrough suitable for high-voltage DC femtosecond electron diffractometers
Creators: name: Gicala, Patrick
name: Petruk, Ariel A.
name: Rivas, Nicolás
name: Netzke, Sam
name: Pichugin, Kostyantyn
name: Sciaini, German
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Highly energetic ultrashort electron bunches have the potential to reveal the ultrafast structural dynamics in relatively thicker in-liquid samples. However, direct current (DC) voltages higher than 100 kV are exponentially difficult to attain as surface and vacuum breakdown become an important problem as the electric field increases. One of the most demanding components in the design of a high-energy electrostatic ultrafast electron source is the high voltage feedthrough (HVFT), which must keep the electron gun from discharging against ground. Electrical discharges can cause irreversible component damage while voltage instabilities render the instrument inoperative. We report the design, manufacturing, and conditioning process for a new HVFT that utilizes ultra-high molecular weight polyethylene (UHMWPE) as the insulating material. Our HVFT is highly customizable, inexpensive, and has proven to be effective in high voltage applications. After a couple of weeks of gas and voltage conditioning, we achieved a maximum voltage of 180 kV with a progressively improved vacuum level of 1.8 x $10^{-8}$ Torr.
Variograms of the Cosmic Microwave Background Temperature Fluctuations: Confirmation of Deviations from Statistical Isotropy
Creators: name: Cayon, Laura
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Standard Inflationary model predicts an isotropic distribution of the Cosmic Microwave Background temperature fluctuations. Detection of deviations from statistical isotropy would call for a revision of the physics of the early universe. This paper introduces the variogram as a powerful tool to detect and characterize deviations from statistical isotropy in Cosmic Microwave Background maps. Application to the Wilkinson Microwave Anisotropy Probe data clearly shows differences between the northern and the southern hemispheres. The sill and range of the northern hemisphere's variogram are lower than those of the southern hemisphere. Moreover the variogram for the northern hemisphere lies outside the 99% c.l. for scales above ten degrees. Differences between the northern and southern hemispheres in the functional dependence of the variogram with the scale can be used as a validation bench mark for proposed anisotropic cosmological models.
description: submitted to MNRAS
Chaos synchronization with coexisting global fields
Creators: name: Alvarez-Llamoza, O.
name: Cosenza, M. G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences
subject: J.2
subject: 37N99

description: We investigate the phenomenon of chaos synchronization in systems subject to coexisting autonomous and external global fields by employing a simple model of coupled maps. Two states of chaos synchronization are found: (i) complete synchronization, where the maps synchronize among themselves and to the external field, and (ii) generalized or internal synchronization, where the maps synchronize among themselves but not to the external global field. We show that the stability conditions for both states can be achieved for a system of minimum size of two maps. We consider local maps possessing robust chaos and characterize the synchronization states on the space of parameters of the system. The state of generalized synchronization of chaos arises even the drive and the local maps have the same functional form. This behavior is similar to the process of spontaneous ordering against an external field found in nonequilibrium systems.
description: 6 pages, 8 figures
Interconnection systems for highly integrated computation devices
Creators: name: Angiolini, Federico <1978>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2008
Subjects: ING-INF/01 Elettronica

description: The sustained demand for faster,more powerful chips has beenmet by the
availability of chip manufacturing processes allowing for the integration
of increasing numbers of computation units onto a single die. The resulting
outcome, especially in the embedded domain, has often been called
SYSTEM-ON-CHIP (SOC) or MULTI-PROCESSOR SYSTEM-ON-CHIP (MPSOC).
MPSoC design brings to the foreground a large number of challenges,
one of the most prominent of which is the design of the chip interconnection.
With a number of on-chip blocks presently ranging in the tens, and
quickly approaching the hundreds, the novel issue of how to best provide
on-chip communication resources is clearly felt.
NETWORKS-ON-CHIPS (NOCS) are the most comprehensive and scalable
answer to this design concern. By bringing large-scale networking
concepts to the on-chip domain, they guarantee a structured answer to
present and future communication requirements. The point-to-point connection
and packet switching paradigms they involve are also of great help
in minimizing wiring overhead and physical routing issues.
However, as with any technology of recent inception, NoC design is
still an evolving discipline. Several main areas of interest require deep
investigation for NoCs to become viable solutions:
• The design of the NoC architecture needs to strike the best tradeoff
among performance, features and the tight area and power constraints
of the on-chip domain.
• Simulation and verification infrastructure must be put in place to
explore, validate and optimize the NoC performance.
• NoCs offer a huge design space, thanks to their extreme customizability
in terms of topology and architectural parameters. Design
tools are needed to prune this space and pick the best solutions.
• Even more so given their global, distributed nature, it is essential to
evaluate the physical implementation of NoCs to evaluate their suitability
for next-generation designs and their area and power costs.
This dissertation focuses on all of the above points, by describing a
NoC architectural implementation called ×pipes; a NoC simulation environment
within a cycle-accurate MPSoC emulator called MPARM; a NoC
design flow consisting of a front-end tool for optimal NoC instantiation,
called SunFloor, and a set of back-end facilities for the study of NoC physical
implementations.
This dissertation proves the viability of NoCs for current and upcoming
designs, by outlining their advantages (alongwith a fewtradeoffs) and
by providing a full NoC implementation framework. It also presents some
examples of additional extensions of NoCs, allowing e.g. for increased
fault tolerance, and outlines where NoCsmay find further application scenarios,
such as in stacked chips.
Smooth Imitation Learning via Smooth Costs and Smooth Policies
Creators: name: Chaudhary, Sapana
name: Ravindran, Balaraman
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Imitation learning (IL) is a popular approach in the continuous control setting as among other reasons it circumvents the problems of reward mis-specification and exploration in reinforcement learning (RL). In IL from demonstrations, an important challenge is to obtain agent policies that are smooth with respect to the inputs. Learning through imitation a policy that is smooth as a function of a large state-action ($s$-$a$) space (typical of high dimensional continuous control environments) can be challenging. We take a first step towards tackling this issue by using smoothness inducing regularizers on \textit{both} the policy and the cost models of adversarial imitation learning. Our regularizers work by ensuring that the cost function changes in a controlled manner as a function of $s$-$a$ space; and the agent policy is well behaved with respect to the state space. We call our new smooth IL algorithm \textit{Smooth Policy and Cost Imitation Learning} (SPaCIL, pronounced 'Special'). We introduce a novel metric to quantify the smoothness of the learned policies. We demonstrate SPaCIL's superior performance on continuous control tasks from MuJoCo. The algorithm not just outperforms the state-of-the-art IL algorithm on our proposed smoothness metric, but, enjoys added benefits of faster learning and substantially higher average return.
description: To appear in the Proceedings of the Fifth Joint International Conference on Data Science and Management of Data (CoDS-COMAD 2022). Research Track. ACM DL
Few-Photon Electron-Positron Pair Creation by Relativistic Muon Impact on Intense Laser Beams
Creators: name: Müller, Sarah J.
name: Müller, Carsten
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Electron-positron pair production in combined laser and Coulomb fields is studied. To this end, the Feynman diagram for multiphoton pair creation by muon impact on a circularly polarized high-frequency laser beam is evaluated within the framework of laser-dressed quantum electrodynamics employing relativistic Volkov states. In the limit of low laser intensity, the result is shown to coincide with the known expression for multiphoton pair creation by a proton which is treated as an external Coulomb field. A scaling of the total pair creation rate is analyzed. The recoil distribution is calculated numerically and its dependence on the projectile mass is discussed. Energy spectra of the created particles and angular spectra of the scattered muon are presented.
description: 14 pages, 10 figures
Regular strongly typical blocks of $\mathcal{O}^{\mathfrak{q}}$
Creators: name: Frisk, Anders
name: Mazorchuk, Volodymyr
Publisher: name: arXiv
Year: 2008
Subjects: subject: Representation Theory (math.RT)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 17B60

description: We use the technique of Harish-Chandra bimodules to prove that regular strongly typical blocks of the category $\mathcal{O}$ for the queer Lie superalgebra $\mathfrak{q}_n$ are equivalent to the corresponding blocks of the category $\mathcal{O}$ for the Lie algebra $\mathfrak{gl}_n$.
description: 10 pages
Nonlinear/electromagnetic co-simulation of microwaves and millimeter-waves links
Co-simulazione nonlineare/elettromagnetica di radiocollegamenti a microonde e onde millimetriche
Creators: name: Spadoni, Paolo <1980>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2008
Subjects: ING-INF/02 Campi elettromagnetici

description: The Ph.D. thesis describes the simulations of different microwave links from the
transmitter to the receiver intermediate-frequency ports, by means of a rigorous circuit-level
nonlinear analysis approach coupled with the electromagnetic characterization of the transmitter
and receiver front ends. This includes a full electromagnetic computation of the radiated far field
which is used to establish the connection between transmitter and receiver. Digitally modulated
radio-frequency drive is treated by a modulation-oriented harmonic-balance method based on
Krylov-subspace model-order reduction to allow the handling of large-size front ends.
Different examples of links have been presented: an End-to-End link simulated by making
use of an artificial neural network model; the latter allows a fast computation of the link itself when
driven by long sequences of the order of millions of samples. In this way a meaningful evaluation of
such link performance aspects as the bit error rate becomes possible at the circuit level.
Subsequently, a work focused on the co-simulation an entire link including a realistic simulation of
the radio channel has been presented. The channel has been characterized by means of a
deterministic approach, such as Ray Tracing technique. Then, a 2x2 multiple-input multiple-output
antenna link has been simulated; in this work near-field and far-field coupling between radiating
elements, as well as the environment factors, has been rigorously taken into account. Finally,
within the scope to simulate an entire ultra-wideband link, the transmitting side of an ultrawideband
link has been designed, and an interesting Front-End co-design technique application has
been setup.
Detecting gravitational waves from inspiraling binaries with a network of geographically separated detectors: coherent versus coincident strategies
Creators: name: Mukhopadhyay, Himan
name: Tagoshi, Hideyuki
name: Dhurandhar, Sanjeev
name: Kanda, Nobuyuki
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We compare two strategies of multi-detector detection of compact binary inspiral signals, namely, the coincidence and the coherent for the realistic case of geographically separated detectors.We compare the performances of the methods by plotting the receiver operating characteristics (ROC) for the strategies. Several results are derived analytically in order to gain insight. Simulations are performed in order to plot the ROC curves. A single astrophysical source as well as a distribution of sources is considered. We find that the coherent strategy is superior to the two coincident strategies that we consider. Remarkably, the detection probability of the coherent strategy is 50% better than the naive coincident strategy. One the other hand, difference in performance between the coherent strategy and enhanced coincident strategy is not very large. Even in this situation, it is not difficult to perform the real data analysis with the coherent strategy. The bottom line is that the coherent strategy is a good detection strategy.
Engineering optical soliton bistability in colloidal media
Creators: name: Matuszewski, Michal
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We consider a mixture consisting of two species of spherical nanoparticles dispersed in a liquid medium. We show that with an appropriate choice of refractive indices and particle diameters, it is possible to observe the phenomenon of optical soliton bistability in two spatial dimensions in a broad beam power range. Previously, this possibility was ruled out in the case of a single-species colloid. As a particular example, we consider the system of hydrophilic silica particles and gas bubbles generated in the process of electrolysis in water. The interaction of two soliton beams can lead to switching of the lower branch solitons to the upper branch, and the interaction of solitons from different branches is phase independent and always repulsive.
‘A Night Outside of Time’: Dark Sky Parks, Lockdown and Imaginaries of Suspension
Creators: name: Collee, Lauren
Publisher: name: figshare
Year: 2021
Subjects: subject: 190104 Visual Cultures
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: There is hype around the idea of ‘darkness’ as the inverse to capitalism’s ‘daylight’ world: one of relentless activity and glare. One major player in the race to delineate the characteristics of this inverse world is the Dark Sky movement, which harnesses collective desire for a ‘break’ from capitalism by characterizing darkness as a spatio-temporal zone of pause, in which it is possible to reconnect with the ‘universal’ qualities of nature. Charting overlaps in the discussions surrounding 'darkness' and the Covid-19 lockdown period (also figured as a space of pause), this presentation will highlight the need to intervene in the Dark Sky movement’s mega-narrative on several grounds. Firstly: it creates a space in which the qualities associated with the capitalist day are perfectly mirrored and inverted. In doing so, it reinforces the existing order, grouping anything that does not ‘fit’ with capitalisms diurnal rhythm into a ‘dark’ realm, and thus entrenching the binaries by which neoliberal capitalism retains its hegemony. Secondly, it figures ‘night’ as a space outside of power, an empty viewing room for the spectacle of the stars, in the face of which spectators ‘dissolve’ and cease to exist as relational beings. Finally, it ignores the fact that the world after dark is in many ways one of heightened surveillance and militarism. This presentation will make a case for a way of ‘seeing’ dark landscapes as no less complex than daytime ones, made up of relational networks and constantly shifting arrangements of power.
Detonation initiation by shock focusing at elevated pressure conditions in a pulse detonation combustor
Creators: name: Habicht, Fabian E.
name: Yücel, Fatma C.
name: Gray, Joshua A. T.
name: Paschereit, Christian O.
Publisher: name: Technische Universität Berlin
Year: 2020
Subjects: subject: 670 Industrielle Fertigung
subject: pulse detonation combustion
subject: shock focusing
subject: deflagration-to-detonation transition
subject: elevated pressure

description: This work contains experimental investigations on the correlation of the detonation initiation process via a shock-focusing device with various initial pressures and mass flow rates. A pulse detonation combustor is operated with stoichiometric hydrogen--air--oxygen mixtures in single cycle operation. A rotationally symmetric shock-focusing geometry evokes the onset of a detonation by the focusing of the reflected leading shock wave, while a blockage plate at the rear end of the test rig is applied to induce an elevated initial pressure. The results show that the reactivity has a major influence on the success rate of detonation initiation. However, measurements with different blockage plates suggest that the mass flow rate has to be considered as well when predicting the success rate. Three main statements can be drawn from the results. (1) An increase in the mean flow velocity induces higher velocity fluctuations which result in a stronger leading shock ahead of the accelerating deflagration front. (2) An increase in the initial static pressure reduces the critical shock strength that must be exceeded to ensure successful detonation initiation by shock focusing. (3) Since the initial pressure is directly linked to the mass flow rate, these contrary trends can cancel each other out, which could be observed for 40% vol. of oxygen in the oxidizer. High-speed images were taken, which confirm that the detonation is initiated in the center of the converging--diverging nozzle due to focusing of the leading shock.
Sounds of Unridden Waves
Creators: name: LOWRY, SEAN
name: TAIMRE, ILMAR
Publisher: name: figshare
Year: 2021
Subjects: subject: 190104 Visual Cultures
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Is it possible to make a surf-film without humans? Sounds of Unridden Waves is the world’s first feature length surf film without any human surfers. Its accompanying original soundtrack is produced by The Ghosts of Nothing— a fictional rock band formed in 2014 as a conceptual vehicle through which a diverse range of objects and activities can be produced. Taken together, these different objects and activities are understood to collectively point to, yet do not constitute, the work itself. This new work was developed as a collaboration between The Ghosts of Nothing (aka Sean Lowry and Ilmar Taimre) and over a dozen renowned surf film makers. It also includes contributions from over a dozen renowned surf film makers. The result, we argue, provides an example of contemporary post-conceptual art. Significantly, some forms of post-conceptual art do not manifest as a singular materialisation. Instead, they might be accessed in numerous ways or as an aggregate of medial elements. Presented as an unfolding series of speculative and immersive journeys across time and space, Sounds of Unridden Waves seeks to revive romantic ambitions historically associated with the so-called “total work of art”. Although fragmentary glimpses of recognizable surf breaks are occasionally apparent, the specific time and place at which Sounds of Unridden Waves is located is deliberately fluid. Far more than a straightforward moving image experience, its Dionysian omnivorousness occasionally veers towards the outermost limits of unbounded maximalism and conceptual chaos. In this respect, it is partly reminiscent of the content-saturated psychotropic dream states of early Surrealism, 1960s psychedelia, 1970s surf iconography, together with some recent examples of romantic conceptualism and neo-Baroque currents in contemporary art.
Shakespeare’s use of names in the dramatic romances
Creators: name: Allen, Steven D.
Publisher: name: University of British Columbia
Year: 2010

description: Shakespeare's choice and use of names is deliberate and calculated, a controlled technique which makes a significant contribution to each play. This is demonstrable by examining the use of names in the Dramatic Romances, in contrast to their use in the preceding comedies. The naming technique contributes to the individual character of each Romance and to their collective distinction from the earlier comedies. The tragedies and histories were not considered because their goals are different from those of the comedies and Romances; thus their consideration would blur the lines of development and the contrasts discernible from The Comedy of Errors to The Tempest. Works on Shakespeare's stagecraft were examined for comments about naming techniques; standard collections and studies of his sources were used to determine possible provenances of names. All the names in the sixteen plays under consideration were compiled, with possible derivations and sources noted, cross-referenced and checked against their appearances in the tragedies and histories. Their frequency of repetition, order and interval of appearance were all noted, and patterns were sought by drawing up parallel lists. The patterns which emerged prove that Shakespeare repeatedly utilized various techniques, such as withholding the names of certain characters, for calculated dramatic effects. Though the techniques serve to individualize each play, they bear certain similarities in the Romances which correspond to the particular shared atmosphere of those plays. Thus there are relatively few allusions or references to a contemporary world outside that of the Romance, cyclical name-patterns are common and names are interrelated, in sound or sense, to reflect the mystic sympathies present in the plays. While not every name can be clearly seen to have a specific and deliberate function, the majority in each play considered make clear contributions to the tone and meaning of the play. Naming technique must be considered an important part of Shakespeare's art, over which he exercised masterful control.
Spatial solitons in periodic nano-structures
Creators: name: Gorbach, A. V.
name: Skryabin, D. V.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We present the first principle theory of the existence and stability of TE and TM spatial solitons in a subwavelength periodic semiconductor-dielectric structure. We have found that for the wavelength 1550nm and the interface separation close to and less than 100nm the band structure of the linear TE and TM waves becomes similar to the band structure of a homogeneous medium. The properties of TE solitons change accordingly. However, the transverse profiles of the TM solitons continue to reflect the subwavelength geometry of the structure and develop dominant intensity peaks inside the low index dielectric slots. Our stability analysis based on the linearized Maxwell equations indicates that the nonlinear TM waves can be approximated as the evanescently coupled modes of the slot waveguides with the low index dielectric core and the high index semiconductor cladding. Transition to the regime where the slot waveguides start to determine properties of TM waves is associated with the so called Brewster condition.
description: Edited version 8 pages, 9 figures, to appear in PRA / replacement due to the corrupted PDF file in the previous version
title: Utilidad del TC y RM en el manejo de las crisis convulsivas ¿para qué sirven?
Creators: name: Paniagua Bravo, Alvaro
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Seizure disorders
subject: Efficacy studies
subject: Outcomes analysis
subject: CT
subject: MR
subject: Neuroradiology brain
subject: Management

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
Las crisis epilépticas consisten en una alteración de la actividad eléctrica cortical manifestada por un cambio en el estado de conciencia o por alteraciones motoras,
sensoriales o conductuales.
En la mayoría de los casos,
su manejo inicial...
The m-reduction in Conformal Field Theory as the Morita equivalence on two-tori
Creators: name: Marotta, Vincenzo
name: Naddeo, Adele
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the Morita equivalence for field theories on noncommutative two-tori. For rational values of the noncommutativity parameter $θ$ (in appropriate units) we show the equivalence between an abelian noncommutative field theory and a nonabelian theory of twisted fields on ordinary space. We concentrate on a particular conformal field theory (CFT), the one obtained by means of the m-reduction procedure (V. Marotta, J. Phys. A 26 (1993) 3481; Mod. Phys. Lett. A 13 (1998) 853; Nucl. Phys. B 527 (1998) 717), and show that the Morita equivalence also holds at this level. An application to the physics of a quantum Hall fluid at Jain fillings ν=m/2pm+1 is explicitly considered in order to further elucidate such a correspondence.
description: 12 pages, 1 figure
Cooperative Training for Attribute-Distributed Data: Trade-off Between Data Transmission and Performance
Creators: name: Zheng, Haipeng
name: Kulkarni, Sanjeev R.
name: Poor, H. Vincent
Publisher: name: arXiv
Year: 2009
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: This paper introduces a modeling framework for distributed regression with agents/experts observing attribute-distributed data (heterogeneous data). Under this model, a new algorithm, the iterative covariance optimization algorithm (ICOA), is designed to reshape the covariance matrix of the training residuals of individual agents so that the linear combination of the individual estimators minimizes the ensemble training error. Moreover, a scheme (Minimax Protection) is designed to provide a trade-off between the number of data instances transmitted among the agents and the performance of the ensemble estimator without undermining the convergence of the algorithm. This scheme also provides an upper bound (with high probability) on the test error of the ensemble estimator. The efficacy of ICOA combined with Minimax Protection and the comparison between the upper bound and actual performance are both demonstrated by simulations.
title: Infarto de la arteria de Percheron: Hallazgos radiológicos.
Creators: name: Gómez de la Heras, Cristina
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Neuroradiology brain

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Describir los hallazgos radiológicos típicos de esta...
Graphene to Graphane: A Theoretical Study
Creators: name: Flores, Marcelo Z. S.
name: Autreto, Pedro A. S.
name: Legoas, Sergio B.
name: Galvao, Douglas S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Graphane is a two-dimensional system consisting of a single layer of fully saturated (sp$^3$ hybridization) carbon atoms. In an ideal graphane structure C-H bonds exhibit an alternating pattern (up and down with relation to the plane defined by the carbon atoms). In this work we have investigated using \textit{ab initio} and reactive molecular dynamics simulations the role of H frustration (breaking the H atoms up and down alternating pattern) in graphane-like structures. Our results show that significant percentage of uncorrelated H frustrated domains are formed in the early stages of the hydrogenation process leading to membrane shrinkage and extensive membrane corrugations. These results also suggest that large domains of perfect graphane-like structures are unlikely to be formed, H frustrated domains are always present.
description: 15 pages, 6 figures
title: Al paciente le ha dado algo?? Qué hacer ante una reacción alérgica al contraste?
Creators: name: Yllera contreras, Elena
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Acute
subject: Contrast agent-oral
subject: CT
subject: Contrast agents

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
"....8 am,
comienza la citación de TAC sección uroradiología. Paciente ambulante.
Varón de 79 años,
BEG actual.
HTA en tratamiento.
Además,
antecedente de Neo vesical (ca.
transicional.
pT1G3)con múltiples RTU en seguimiento por Servicio de...
title: Lo que el cardiólogo infantil espera que le diga el radiólogo general de una placa simple
Creators: name: López García, María
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Congenital
subject: Conventional radiography
subject: Thorax

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
La notable mejora en la supervivencia de pacientes con Cardiopatía Congénita (CC) ha conducido a un número continuamente creciente de pacientes adultos con Cardiopatía Congénita del Adulto (CCA),
sobre todo con enfermedad más...
Milestones in Autonomous Driving and Intelligent Vehicles Part I: Control, Computing System Design, Communication, HD Map, Testing, and Human Behaviors
Creators: name: Chen, Long
name: Li, Yuchen
name: Huang, Chao
name: Xing, Yang
name: Tian, Daxin
name: Li, Li
name: Hu, Zhongxu
name: Teng, Siyu
name: Lv, Chen
name: Wang, Jinjun
name: Cao, Dongpu
name: Zheng, Nanning
name: Wang, Fei-Yue
Publisher: name: arXiv
Year: 2023
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Interest in autonomous driving (AD) and intelligent vehicles (IVs) is growing at a rapid pace due to the convenience, safety, and economic benefits. Although a number of surveys have reviewed research achievements in this field, they are still limited in specific tasks and lack systematic summaries and research directions in the future. Our work is divided into 3 independent articles and the first part is a Survey of Surveys (SoS) for total technologies of AD and IVs that involves the history, summarizes the milestones, and provides the perspectives, ethics, and future research directions. This is the second part (Part I for this technical survey) to review the development of control, computing system design, communication, High Definition map (HD map), testing, and human behaviors in IVs. In addition, the third part (Part II for this technical survey) is to review the perception and planning sections. The objective of this paper is to involve all the sections of AD, summarize the latest technical milestones, and guide abecedarians to quickly understand the development of AD and IVs. Combining the SoS and Part II, we anticipate that this work will bring novel and diverse insights to researchers and abecedarians, and serve as a bridge between past and future.
description: 18 pages, 4 figures, 3 tables, in IEEE Trans. Syst. Man Cybern. Syst
The solar corona as an active medium for magnetoacoustic waves
Creators: name: Kolotkov, D. Y.
name: Zavershinskii, D. I.
name: Nakariakov, V. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The presence and interplay of continuous cooling and heating processes maintaining the corona of the Sun at the observed one million K temperature were recently understood to have crucial effects on the dynamics and stability of magnetoacoustic waves. These essentially compressive waves perturb the coronal thermal equilibrium, leading to the phenomenon of a wave-induced thermal misbalance. Representing an additional natural mechanism for the exchange of energy between the plasma and the wave, thermal misbalance makes the corona an active medium for magnetoacoustic waves, so that the wave can not only lose but also gain energy from the coronal heating source (similarly to burning gases, lasers and masers). We review recent achievements in this newly emerging research field, focussing on the effects that slow-mode magnetoacoustic waves experience as a back-reaction of this perturbed coronal thermal equilibrium. The new effects include enhanced frequency-dependent damping or amplification of slow waves, and effective, not associated with the coronal plasma non-uniformity, dispersion. We also discuss the possibility to probe the unknown coronal heating function by observations of slow waves and linear theory of thermal instabilities. The manifold of the new properties that slow waves acquire from a thermodynamically active nature of the solar corona indicate a clear need for accounting for the effects of combined coronal heating/cooling processes not only for traditional problems of the formation and evolution of prominences and coronal rain, but also for an adequate modelling and interpretation of magnetohydrodynamic waves.
description: Accepted for publication in Plasma Phys. Control. Fusion
Bouncing Universe and Reconstructing Vector Field
Creators: name: Sadeghi, J.
name: Setare, M. R.
name: Amani, A. R.
name: Noorbakhsh, S. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Motivated by the recent works of Refs. \cite{R1, R2} where a model of inflation has been suggested with non-minimally coupled massive vector fields, we generalize their work to the study of the bouncing solution. So we consider a massive vector field, which is non-minimally coupled to gravity. Also we consider non-minimal coupling of vector field to the scalar curvature. Then we reconstruct this model in the light of three forms of parametrization for dynamical dark energy. Finally we simply plot reconstructed physical quantities in flat universe.
description: e.g.: 14 pages, 14 figures