cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Elementary Wideband Timing of Radio Pulsars
Creators: name: Pennucci, Timothy T.
name: Demorest, Paul B.
name: Ransom, Scott M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present an algorithm for the simultaneous measurement of a pulse time-of-arrival (TOA) and dispersion measure (DM) from folded wideband pulsar data. We extend the prescription from Taylor (1992) to accommodate a general two-dimensional template "portrait", the alignment of which can be used to measure a pulse phase and DM. We show that there is a dedispersion reference frequency that removes the covariance between these two quantities, and note that the recovered pulse profile scaling amplitudes can provide useful information. We experiment with pulse modeling by using a Gaussian-component scheme that allows for independent component evolution with frequency, a "fiducial component", and the inclusion of scattering. We showcase the algorithm using our publicly available code on three years of wideband data from the bright millisecond pulsar J1824-2452A (M28A) from the Green Bank Telescope, and a suite of Monte Carlo analyses validates the algorithm. By using a simple model portrait of M28A we obtain DM trends comparable to those measured by more standard methods, with improved TOA and DM precisions by factors of a few. Measurements from our algorithm will yield precisions at least as good as those from traditional techniques, but is prone to fewer systematic effects and is without ad hoc parameters. A broad application of this new method for dispersion measure tracking with modern large-bandwidth observing systems should improve the timing residuals for pulsar timing array experiments, like the North American Nanohertz Observatory for Gravitational Waves.
description: Equation 13 was erroneously inverted in earlier (and published ApJ) versions. 15 pages, 11 figures, 2 tables. The Astrophysical Journal, vol. 790, no. 93, 2014. The published article has stylistic/formatting differences: http://iopscience.iop.org/0004-637X/790/2/93/
title: Unilever Foundry
Creators: name: Birkinshaw, Julian
name: Meghani, Shahnoor
Publisher: name: London Business School
Year: 2016
Subjects: subject: FOS: Economics and business
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description: This case focuses on the Unilever Foundry, a platform for Unilever to engage with start-ups and entrepreneurs, providing them with access to Unilever's brands as a means of enabling their growth while bringing innovative technology back to the company. The case provides a brief description of Unilever's evolution from the mid-1990s to 2016, focusing on its various attempts to make the business more innovative and agile. With the arrival of Paul Polman as CEO and his 'sustainable living plans', the impetus to innovate was once again very high and a number of initiatives were launched to help the company move beyond its traditional ways of working. In May 2014 the Foundry was launched to create commercial opportunities by connecting Unilever businesses with start-ups. Through a licensing mechanism, the start-up would make its technology available to Unilever to bring innovation to its brand or get the rights to use a Unilever brand within certain guidelines. The Foundry was essentially a platform for collaboration. The case explores how the Foundry functioned and evolved both within Unilever and in the collaborations with external start-ups. By December 2015 its leader, Jeremy Basset, had a team of seven people and operated in several locations across the world. The case closes with various issues facing Jeremy - whether to raise greater awareness of the Foundry within Unilever; how to scale it to make a difference within the huge organisation that was Unilever; and ultimately, where to go from here?
description: LBS Case Code: CS-18-015
MIMO Zero-Forcing Performance Evaluation Using the Holonomic Gradient Method
Creators: name: Siriteanu, Constantin
name: Takemura, Akimichi
name: Kuriki, Satoshi
name: Shin, Hyundong
name: Koutschan, Christoph
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: For multiple-input multiple-output (MIMO) spatial-multiplexing transmission, zero-forcing detection (ZF) is appealing because of its low complexity. Our recent MIMO ZF performance analysis for Rician--Rayleigh fading, which is relevant in heterogeneous networks, has yielded for the ZF outage probability and ergodic capacity infinite-series expressions. Because they arose from expanding the confluent hypergeometric function $ {_1\! F_1} (\cdot, \cdot, σ) $ around 0, they do not converge numerically at realistically-high Rician $ K $-factor values. Therefore, herein, we seek to take advantage of the fact that $ {_1\! F_1} (\cdot, \cdot, σ) $ satisfies a differential equation, i.e., it is a \textit{holonomic} function. Holonomic functions can be computed by the \textit{holonomic gradient method} (HGM), i.e., by numerically solving the satisfied differential equation. Thus, we first reveal that the moment generating function (m.g.f.) and probability density function (p.d.f.) of the ZF signal-to-noise ratio (SNR) are holonomic. Then, from the differential equation for $ {_1\! F_1} (\cdot, \cdot, σ) $, we deduce those satisfied by the SNR m.g.f. and p.d.f., and demonstrate that the HGM helps compute the p.d.f. accurately at practically-relevant values of $ K $. Finally, numerical integration of the SNR p.d.f. produced by HGM yields accurate ZF outage probability and ergodic capacity results.
description: This manuscript was accepted in December 2014
D1.4: 2nd General Assembly report
Creators: name: Evrard, Estérine
name: Pouliquen, Sylvie
name: Angel-Benavides, Ingrid
name: Velez-Belchi, Pedro
name: D'Ortenzio, Fabrizio
name: Tuomi, Laura
name: Notarstefano, Giulio
name: Gourcuff, Claire
name: Berry, Alan
Publisher: name: Zenodo
Year: 2022

description: Second General Assembly report
Fotosintesi su mondi alieni alla luce d’un simulatore
Creators: Guido Sbrogiò
Publisher: name: Media Inaf
Year: 2022

All’Europlanet Science Congress è stato presentato un ingegnoso esperimento, nato dalla collaborazione tra il Dipartimento di biologia e l’Inaf di Padova, che ha permesso di dimostrare come i cianobatteri e altri microrganismi possano crescere su pianeti rocciosi orbitanti intorno alle nane rosse, le stelle più abbondanti nella nostra galassia
Acqua su Marte, c’è una nuova conferma
Creators: Redazione Asi
Publisher: name: Media Inaf
Year: 2022

Uno studio condotto da un team italo-statunitense, pubblicato ieri su Nature Communications, torna ad avvalorare l’ipotesi – avanzata per la prima volta nel 2018 – della presenza di acqua salata allo stato liquido nel sottosuolo del Pianeta rosso, messa appena tre giorni fa in discussione da un altro studio pubblicato su Nature Astronomy
Senta Herkley, Sabine Holtz, Gert Kollmer-von Oheimb-Loup (Hrsg.): 1816 - Das Jahr ohne Sommer
Creators: name: Neidhardt, Stefanie Monika
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2023

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 38 (2019): Rottenburger Jahrbuch für Kirchengeschichte, Band 38
Nicole Bickhoff, Wolfgang Mährle (Hrsg.): Armee im Untergang
Creators: name: Clausing, Caroline
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2023

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 38 (2019): Rottenburger Jahrbuch für Kirchengeschichte, Band 38
Comandante Cristoforetti
Creators: Enrica Battifoglia / Ansa
Publisher: name: Media Inaf
Year: 2022

Samantha Cristoforetti è la prima donna europea ad assumere il comando della Stazione spaziale. Il passaggio di consegne fra l’attuale comandante, il russo Oleg Artemyev, e l’astronauta dell'Agenzia spaziale europea è avvenuto con lo scambio della chiave di ottone. Quanto potrà durare il suo comando al momento non è noto, poiché non è ancora stata decisa la data di rientro
Cani robot: i futuri esploratori lunari
Creators: Federico Di Giacomo
Publisher: name: Media Inaf
Year: 2022

Nel prossimo futuro robot a quattro zampe potranno essere usati nelle missioni di esplorazione lunare per studiare siti geologicamente interessanti che tuttavia risultano essere di difficile accesso. Uno di questi, addestrato tramite l’intelligenza artificiale, ha imparato la stessa lezione degli astronauti delle missioni Apollo: saltare è il modo migliore per muoversi sulla superficie della Luna
Anne Conrad, Alexander Maier (Hrsg.): Erziehung als "Entfehlerung"
Creators: name: Müller, Markus
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2023

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 38 (2019): Rottenburger Jahrbuch für Kirchengeschichte, Band 38
Pius Onyemechi Adiele: The Popes, the Catholic Church and the Transatlantic Enslavement of Black Africans 1418-1839
Creators: name: Moritz, Tilman
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2023

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 38 (2019): Rottenburger Jahrbuch für Kirchengeschichte, Band 38
Training End-to-End Unrolled Iterative Neural Networks for SPECT Image Reconstruction
Creators: name: Li, Zongyu
name: Dewaraja, Yuni K.
name: Fessler, Jeffrey A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Training end-to-end unrolled iterative neural networks for SPECT image reconstruction requires a memory-efficient forward-backward projector for efficient backpropagation. This paper describes an open-source, high performance Julia implementation of a SPECT forward-backward projector that supports memory-efficient backpropagation with an exact adjoint. Our Julia projector uses only ~5% of the memory of an existing Matlab-based projector. We compare unrolling a CNN-regularized expectation-maximization (EM) algorithm with end-to-end training using our Julia projector with other training methods such as gradient truncation (ignoring gradients involving the projector) and sequential training, using XCAT phantoms and virtual patient (VP) phantoms generated from SIMIND Monte Carlo (MC) simulations. Simulation results with two different radionuclides (90Y and 177Lu) show that: 1) For 177Lu XCAT phantoms and 90Y VP phantoms, training unrolled EM algorithm in end-to-end fashion with our Julia projector yields the best reconstruction quality compared to other training methods and OSEM, both qualitatively and quantitatively. For VP phantoms with 177Lu radionuclide, the reconstructed images using end-to-end training are in higher quality than using sequential training and OSEM, but are comparable with using gradient truncation. We also find there exists a trade-off between computational cost and reconstruction accuracy for different training methods. End-to-end training has the highest accuracy because the correct gradient is used in backpropagation; sequential training yields worse reconstruction accuracy, but is significantly faster and uses much less memory.
description: submitted to IEEE TRPMS
Data Fusion and State Estimation Using Belief Propagation in Gas Distribution Networks
Creators: name: Demirel, Gökhan
name: Jongh, Steven De
name: Müller, Felicitas
name: Leibfried, Thomas
Publisher: name: Institute of Electrical and Electronics Engineers (IEEE)
Year: 2022

description: This paper proposes a solution to the state estimation problem in gas networks using the distributed belief propagation (BP) algorithm. Power system identification applications require precise and robust state estimatiors as well as various sensor information. Compared to augmenting the power system with a very large number of sensors, a limited number of sensors and probabilistic graphical models can be used to infer the system state and reduce hardware investments. A novel BP algorithm propagates the pressure quantities at nodes in the gas network based on pressure manometer signals and applies a correction based on the information of neighboring nodes in the fusion step by using additional supporting sensors. Finally, the data fusion algorithm is demonstrated for a 14-node gas distribution network based on real data. This paper presents a novel algorithm aimed at tackling the traditional weighted least squares method to validate the developed novel approach in order to highlight the advantage of the distributed inference algorithm over traditional methods.
Christine Absmeier, Matthias Asche, Marta Fata, Annemarie Röder, Anton Schindling (hrsg.): Religiös motivierte Migrationen zwischen dem östlichen Europa und dem deutschen Südwesten vom 16. bis zum 19. Jahrhundert
Creators: name: Niggemann, Ulrich
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2023

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 38 (2019): Rottenburger Jahrbuch für Kirchengeschichte, Band 38
Analytical Formulae of the Polyakov and the Wilson Loops with Dirac Eigenmodes in Lattice QCD
Creators: name: Suganuma, Hideo
name: Doi, Takahiro M.
name: Iritani, Takumi
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We derive an analytical gauge-invariant formula between the Polyakov loop $L_P$ and the Dirac eigenvalues $λ_n$ in QCD, i.e., $L_P \propto \sum_n λ_n^{N_t -1} \langle n|\hat U_4|n \rangle$, in ordinary periodic square lattice QCD with odd-number temporal size $N_t$. Here, $|n\rangle$ denotes the Dirac eigenstate, and $\hat U_4$ temporal link-variable operator. This formula is a Dirac spectral representation of the Polyakov loop in terms of Dirac eigenmodes $|n\rangle$. Because of the factor $λ_n^{N_t -1}$ in the Dirac spectral sum, this formula indicates negligibly small contribution of low-lying Dirac modes to the Polyakov loop in both confinement and deconfinement phases, while these modes are essential for chiral symmetry breaking. Next, we find a similar formula between the Wilson loop and Dirac modes on arbitrary square lattices, without restriction of odd-number size. This formula suggests a small contribution of low-lying Dirac modes to the string tension $σ$, or the confining force. These findings support no crucial role of low-lying Dirac modes for confinement, i.e., no direct one-to-one correspondence between confinement and chiral symmetry breaking in QCD, which seems to be natural because heavy quarks are also confined even without light quarks or the chiral symmetry.
description: 16 pages, 4 figures
Dagmar Freist: Glaube - Liebe - Zwietracht
Creators: name: Warmbrunn, Paul
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2023

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 38 (2019): Rottenburger Jahrbuch für Kirchengeschichte, Band 38
title: Haier's Rendanheyi 2.0: An ecosystem revolution
Creators: name: Jacobides, Michael
name: Duke, Lisa
Publisher: name: London Business School
Year: 2020
Subjects: subject: FOS: Economics and business
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description: Haier in 1984 was a small, local firm on the verge of collapse, with poor-quality products and low morale. Within 30 years, it was transformed by Zhang Ruimin, who took over as CEO, into one of the worldss's leading white-goods manufacturers, with a reputation for quality and innovation and an increasing global scope and footprint, including GE's iconic white-goods unit in the US and Candy in Europe. This transformation was driven by a series of disciplined managerial innovations, inspired not only by Zhang's reading of management guru Peter Drucker and a relentless focus on execution, but also by experimentation. This increasingly gave power to entrepreneurs within the firm, driven by Zhang's philosophy of 'Rendanheyis' ('rens' means employees, 'dan' means user value and 'heyi' means alignment), loosely translated as the integration of people and goals. The aim was to achieve 'zero distance to the customers' by restructuring the whole organisation towards identifying and serving customer needs, which was achieved through the introduction of company-wide IT systems that allowed the firm to be restructured first into business units and then into small, self-managed teams, each responsible for their own profit and loss, called zi zhu jing ying ti (ZZJYT), which means 'independent operating unit'. The goal was to reduce the distance to customers and this 'inversion of the pyramid' underpinned significant growth. Yet, while by 2014 Haier had become a success story, the sector was facing structural change due to the internet and ecommerce and the growth of digital platforms and ecosystems. Zhang was happy with the success so far, but mindful of the fact that one never stops. The question was: what could he do to change the dial?
description: LBS Case Code: CS-20-013
Dominik Gerd Sieber: Der konfessionelle Gottesacker
Creators: name: Sörries, Reiner
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2023

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 38 (2019): Rottenburger Jahrbuch für Kirchengeschichte, Band 38
Tutte le lenti gravitazionali di Agel
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2022

All’inizio del 2022, un algoritmo di apprendimento automatico aveva individuato circa 5mila potenziali lenti gravitazionali. A oggi ne sono state analizzate in dettaglio 77 e, di queste, 68 sono state confermate come tali. L’alta percentuale di successo suggerisce che l’algoritmo sia molto affidabile e che potremmo quindi avere a disposizione migliaia di nuove lenti gravitazionali. Tutti i dettagli su ApJ
Webb vede dentro i bracci di spirale di Ic 5332
Creators: Valentina Guglielmo
Publisher: name: Media Inaf
Year: 2022

Il confronto fra le osservazioni della galassia a spirale Ic 5332 effettuate da Hubble e Webb mostra i diversi volti delle strutture interne alla galassia. Grazie a Webb si possono vedere le strutture oltre le polveri che riempiono lo spazio fra i bracci di spirale, e le stelle più rosse. Con Hubble, le stelle più giovani e luminose
Gromov compactness for holomorphic discs with totally real boundary conditions
Creators: name: Frauenfelder, Urs
name: Zehmisch, Kai
Publisher: name: arXiv
Year: 2014
Subjects: subject: Symplectic Geometry (math.SG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 53D12 (primary), 53D45, 58J05, 35J66 (secondary)

description: We prove that a sequence of holomorphic discs with totally real boundary conditions has a subsequence that Gromov converges to a stable holomorphic map of genus zero with connected boundary provided that the sequence is bounded and has bounded energy.
description: To appear in J. Fixed Point Theory Appl
title: Reinventing performance management at Allen & Overy
Creators: name: Ibarra, Herminia
name: Fletcher, Carrie J
Publisher: name: London Business School
Year: 2020
Subjects: subject: FOS: Economics and business
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description: By early 2019, Magic Circle law firm Allen & Overy (A&O) had replaced its longstanding, traditional annual review system with Compass, a state-of-the-art performance management process based on real-time feedback and planful career development discussions. As Managing Partner Andrew Ballheimer put it, Compass was part of a firm-wide cultural shift 'to focus on future development and enable people to perform and progress through more regular open and effective conversations.' The case describes the impetus for the change, how the change process unfolded, key features of new the system, and the points of debate and controversy around the implementation.
description: LBS Case Code: CS-20-022
title: The role of trade in the economic diversification of Brunel Darussalam
Creators: name: Ahmad Ariffin, May Faezah
Publisher: name: University of Kent
Year: 2022

description: Brunei’s intention to diversify the economy away from oil and gas had become a national development objective since the beginning of the third National Development Plan in 1975. There were two major policy initiatives to achieve this: the establishment of a ministry responsible for promoting and facilitating the non-oil industrial development in 1989 and the formation of an industrial development board in 1996. By evaluating the progress made in the development of non-oil trade, this thesis will be the first to analyse the Brunei diversification policy efforts using disaggregated trade data. The main finding is that there is evidence that economic diversification has taken place, although the process has not been rapid. The types of products that can be promoted as a strategy for the diversification policy and their potential markets have also been identified. These include garments, metal manufacturing and fish products. It is also found that there is a need for improvement in the competitiveness of these products.
Lofar si sintonizza sui Megahalo
Creators: Ufficio stampa Inaf
Publisher: name: Media Inaf
Year: 2022

Un gruppo internazionale di ricercatrici e ricercatori, tra cui alcuni dell’Istituto nazionale di astrofisica e dell’Università di Bologna, ha individuato per la prima volta attorno a quattro ammassi di galassie delle gigantesche regioni che emettono onde radio e si estendono anche per 10 milioni di anni luce. Lo studio viene pubblicato oggi sulla rivista Nature
Multisymplectic formulation of vielbein gravity. De Donder-Weyl formulation, Hamiltonian (n-1)-forms
Creators: name: Vey, Dimitri
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the De Donder-Weyl (DW) Hamiltonian formulation of the Palatini action of vielbein gravity formulated in terms of the solder form and spin connection, which are treated as independent variables. The basic geometrical constructions necessary for the DW Hamiltonian theory of vielbein gravity are presented. We reproduce the DW Hamilton equations in the multisymplectic and pre-multisymplectic formulations. We also give basic examples of Hamiltonian (n-1)-forms and related Poisson brackets.
description: 47 pages, 0 figure v4 Minor corrections. (notations more light)
Ai poli di Giove, dove un ciclone può durare 70 anni
Creators: Redazione Media Inaf
Publisher: name: Media Inaf
Year: 2022

Formano un ottagono attorno al polo nord e un pentagono attorno al polo sud: in totale 13 cicloni, che possono raggiungere 5000 km di diametro e presentano venti con velocità massime tra 250 e 360 km/h. Ma cos’è che li guida? E cosa li mantiene stabili così a lungo? Due recenti articoli firmati, fra gli altri, da ricercatori dell’Istituto nazionale di astrofisica fanno ora nuova luce sulle proprietà di queste imponenti strutture atmosferiche
Susan Richter, Armin Kohnle (Hrsg.): Herrschaft und Glaubenswechsel
Creators: name: Bünz, Enno
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2023

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 38 (2019): Rottenburger Jahrbuch für Kirchengeschichte, Band 38
title: Brand Valuation: What, How and Why?
Creators: name: Tavassoli, Nader
Publisher: name: London Business School
Year: 2019
Subjects: subject: FOS: Economics and business
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description: As Chief Marketing Officer of a privately held Swiss luxury goods company, Lena Mueller was tasked with valuing the company's brand, whose products traded under the same name as the company itself. The reason her CEO gave for the valuation exercise was to better understand 'this strange animal called brands' one that over the last decade kept cropping up as a formidable intangible asset on post-M&A balance sheets, such as in the G-III Apparel Group's recent acquisition of Donna Karan International. 'It might be useful to know our own brands' values', the CEO had added, 'in case we get acquired, but also to better manage and leverage the brand, how we handle our taxes internationally and, frankly, so I can assess your performance!' Lena too was interested in putting a number on the value of their brand, as she was evaluating a co-branding arrangement for a new bag collection, as well as negotiating a licensing agreement for a range of fragrances.
description: LBS Case Code: CS-19-002
Mudrak, Marc: Reformation und alter Glaube
Creators: name: Tricoire, Damien
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2023

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 38 (2019): Rottenburger Jahrbuch für Kirchengeschichte, Band 38
Colpito un asteroide: storica impresa della Nasa
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2022

Alle 01:14 ora italiana di questa notte, martedì 27 settembre, la navicella interplanetaria Dart della Nasa ha portato a termine il primo esperimento dimostrativo al mondo di una tecnologia per la difesa planetaria, centrando in pieno, a oltre 22mila km/h, il suo obiettivo: Dimorphos, un piccolo asteroide dal diametro di 160 metri. È il primo tentativo nella storia di alterare la traiettoria di un asteroide nello spazio
Johannes Meier: Bis an die Ränder der Welt
Creators: name: Pawlowsky, Iriny
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2023

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 38 (2019): Rottenburger Jahrbuch für Kirchengeschichte, Band 38
Distortion-Rate Function of Sub-Nyquist Sampled Gaussian Sources
Creators: name: Kipnis, Alon
name: Goldsmith, Andrea J.
name: Eldar, Yonina C.
name: Weissman, Tsachy
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The amount of information lost in sub-Nyquist sampling of a continuous-time Gaussian stationary process is quantified. We consider a combined source coding and sub-Nyquist reconstruction problem in which the input to the encoder is a noisy sub-Nyquist sampled version of the analog source. We first derive an expression for the mean squared error in the reconstruction of the process from a noisy and information rate-limited version of its samples. This expression is a function of the sampling frequency and the average number of bits describing each sample. It is given as the sum of two terms: Minimum mean square error in estimating the source from its noisy but otherwise fully observed sub-Nyquist samples, and a second term obtained by reverse waterfilling over an average of spectral densities associated with the polyphase components of the source. We extend this result to multi-branch uniform sampling, where the samples are available through a set of parallel channels with a uniform sampler and a pre-sampling filter in each branch. Further optimization to reduce distortion is then performed over the pre-sampling filters, and an optimal set of pre-sampling filters associated with the statistics of the input signal and the sampling frequency is found. This results in an expression for the minimal possible distortion achievable under any analog to digital conversion scheme involving uniform sampling and linear filtering. These results thus unify the Shannon-Whittaker-Kotelnikov sampling theorem and Shannon rate-distortion theory for Gaussian sources.
description: Accepted for publication at the IEEE transactions on information theory
Venerdì insieme all’Inaf per la Notte dei ricercatori
Creators: Antonino La Barbera
Publisher: name: Media Inaf
Year: 2022

Aperture di laboratori e musei, incontri con il pubblico, tavole rotonde, mostre, attività per i più giovani, conferenze ed eventi sia in presenza che online: ecco tutte le iniziative per il pubblico in programma la sera di venerdì 30 settembre nelle sedi di Bologna, Cagliari, Catania, Firenze, Frascati, Napoli, Padova, Palermo, Roma, Teramo, Torino e Trieste dell’Istituto nazionale di astrofisica
Stephan Sander-Faes: Europas habsburgisches Jahrhundert 1450-1550
Creators: name: Feller, Claudia
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2023

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 38 (2019): Rottenburger Jahrbuch für Kirchengeschichte, Band 38
Sigrid Hirbodian, Peter Ruckert (Hrsg.): Württembergische Städte im späten Mittelalter
Creators: name: Gehringer, Horst
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2023

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 38 (2019): Rottenburger Jahrbuch für Kirchengeschichte, Band 38
Cambiamenti climatici e osservazioni astronomiche
Creators: Valentina Guglielmo
Publisher: name: Media Inaf
Year: 2022

Secondo un nuovo studio, che per la prima volta valuta il destino dei più comuni siti che ospitano telescopi da terra, la scelta dei siti di costruzione di nuovi telescopi dovrebbe prendere in considerazione anche le variazioni climatiche sul lungo termine dovute alle attività antropiche. Tutti i dettagli su A&A
Andreas Bihrer, Gerhard Fouquet (Hrsg.): Bischofsstadt ohne Bischof?
Creators: name: Eberl, Immo
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2023

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 38 (2019): Rottenburger Jahrbuch für Kirchengeschichte, Band 38
Active Nematic Multipoles: Flow Responses and the Dynamics of Defects and Colloids
Creators: name: Houston, Alexander J. H.
name: Alexander, Gareth P.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We introduce a general description of localised distortions in active nematics using the framework of active nematic multipoles. We give the Stokesian flows for arbitrary multipoles in terms of differentiation of a fundamental flow response and describe them explicitly up to quadrupole order. We also present the response in terms of the net active force and torque associated to the multipole. This allows the identification of the dipolar and quadrupolar distortions that generate self-propulsion and self-rotation respectively and serves as a guide for the design of arbitrary flow responses. Our results can be applied to both defect loops in three-dimensional active nematics and to systems with colloidal inclusions. They reveal the geometry-dependence of the self-dynamics of defect loops and provide insights into how colloids might be designed to achieve propulsive or rotational dynamics, and more generally for the extraction of work from active nematics. Finally, we extend our analysis also to two dimensions and to systems with chiral active stresses.
description: 24 pages, 10 figures
Lagrangian approach in spin-oscillations problem
Creators: name: Pyshkin, P. V.
name: Kopeliovich, A. I.
name: Yanovsky, A. V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Lagrangian of electronic liquid in magneto-inhomogeneous micro-conductor has been constructed. A corresponding Euler-Lagrange equation has been solved. It was shown that the described system has eigenmodes of spin polarization and total electric current oscillations. The suggested approach permits to study the spin dynamics in an open-circuit which contains capacitance and/or inductivity.
description: 4 pages, 3 figures
Foto italiana record: la Terra da 14 milioni di km
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2022

Ecco le prime, storiche, immagini catturate dalle fotocamere Leia e Luke a bordo di LiciaCube nel corso della prima missione italiana in “deep space”, durante le fasi di avvicinamento in preparazione del fly-by, quando LiciaCube sarà unica testimone dell'impatto tra la sonda della Nasa Dart e Dimorphos. Con un commento di Elisabetta Dotto dell’Istituto nazionale di astrofisica
Harald Derschka, Jürgen Klöckler, Thomas Zotz (Hrsg.): Konstanz und der Südwesten des Reiches im hohen und späten Mittelalter
Creators: name: Eberl, Immo
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2023

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 38 (2019): Rottenburger Jahrbuch für Kirchengeschichte, Band 38
Subjective perception of nasal breathing
Creators: name: Kanjanawasee, Dichapong
Publisher: name: Macquarie University
Year: 2023
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: Nasal obstruction is a very common nasal complaint in clinical practice. The mechanism of nasal breathing perception is poorly understood and controversial. Currently, there is no reliable tool for measuring nasal perception of air flow. This thesis aims to develop an understanding of nasal perception pathway, identify factors contributing to nasal perception and develop a new reliable measuring tool. Empty nose syndrome (ENS) is a well-known condition characterized by paradoxical sensation of nasal obstruction despite wide empty nasal space. The explanation of this condition can enhance the understanding of nasal perception mechanism, therefore pathophysiology of ENS was studied. (Chapter 2) The nasal perception is driven by the nasal mucosal ‘cooling’ which connected to brainstem control center and specific region of cerebral cortices including emotional processing area. Our experiment found that the effect of emotional control and psychogenic modulation on nasal perception is likely to be the explanation of the discordance between subjective and objective findings in ENS and may potentially be its cause. The utility of objective airway test on structural obstruction was studied in patients who underwent nasal obstruction surgery. (Chapter 3) Nasal resistance demonstrates higher correlation of the impact of surgery with patient reported outcomes on the obstructed side. The control of ‘disease factor’ is deemed successful when an improvement in unilateral nasal resistance by 0.2 Pa/cm3/s or total resistance by 0.1 Pa/cm3/s is achieved. Despite achieving the desired outcome in controlling the ‘disease factor’, persistent nasal obstruction also depends on ‘patient factor.’ The ‘patient factor’ associated with poor surgical outcome from the turbinate surgery was studied by comparing ENS and non-ENS patients. (low or high benefit) (Chapter 4) High psychogenic function, disproportionate subjective nasal complaints and the presence of reflux symptoms were shown to be characteristic of ENS. The new measuring tool called ENS12Qs was developed accordingly. (Chapter 5) This 12-item questionnaire utilized in this study to differentiate ENS from non-ENS cases can potentially be used to clinically identify patients at risk of developing poor surgical outcome ‘before’ it occurs. In conclusion, this thesis provides the understanding and insight of subjective nasal perception. Psychogenic factor is the major contributor on subjective nasal perception and could explain the paradoxical finding between subjective perception and objective nasal airway test. The poor psychogenic function found in ENS led to the development of subjective measurement tool which provides a comprehensive and reliable subjective nasal perception assessment.
title: Hierarchie und Liebe: zuht-Rituale in der mittelhochdeutschen Heldenepik, im höfischen Roman und in der Maerendichtung
Creators: name: Neecke, Michael
Publisher: name: Universität Regensburg
Year: 2002
Subjects: subject: Mittelalter, Literatur, Zivilisation, Liebe, Misogynie
subject: 830 Deutsche Literatur

description: Dass die höfische Dichtung des Mittelalters das Phänomen Liebe thematisiert, ist bekannt. Der disziplinatorische Kontext, in dem dies geschieht, wird jedoch zumeist ausgeblendet. Die Arbeit zeigt die anti-erotische und misogyne Ausrichtung der Texte: Die höfische Dichtung propagiert Hierarchie – nicht Liebe. Als Zentrum der Hierarchiekonzepte der höfischen Dichtung lässt sich das ideologische Programm der zuht identifizieren. Der literarische Begriff der zuht gewinnt seine Kontur in Abgrenzung und Überwindung eines Begriffs der "Nicht-Zivilisation" (wilde). Während der Begriff der zuht auf psychische und soziale Ordnungen des Richtigen verweist, erscheint der Begriff der wilde als Signatur des Falschen, als Zeichen der Auflösung von legitimer Ordnung. Der Antagonismus von zuht und wilde liegt als narrative Basisstruktur den Erzählungen der höfischen Dichtung zu Grunde: Im höfischen Roman wird die zuht als Abgrenzung von der wilde und Distanzierung dargestellt, im Heldenepos und in der Maerendichtung dagegen als ,Kolonialisierung‘ und Unterwerfung.
Jessalynn L. Bird, Damian J. Smith (Hrsg.): The Fourth Lateran Council and the Crusade Movement
Creators: name: Schabel, Chris
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2023

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 38 (2019): Rottenburger Jahrbuch für Kirchengeschichte, Band 38
Jochen Johrendt: Investiturstreit
Creators: name: Althoff, Gerd
Publisher: name: Rottenburger Jahrbuch für Kirchengeschichte
Year: 2023

description: Rottenburger Jahrbuch für Kirchengeschichte, Bd. 38 (2019): Rottenburger Jahrbuch für Kirchengeschichte, Band 38
L’abitabilità dell’oceano di Encelado
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2022

In accordo con un nuovo modello geochimico basato sui dati raccolti dalla sonda spaziale Cassini, l'oceano di Encelado dovrebbe essere relativamente ricco di fosforo, un elemento fondamentale per tutte le forme di vita sulla Terra. Si tratta del modello a oggi più dettagliato di come i minerali del fondale marino si dissolvono nell'oceano di Encelado. Tutti i dettagli su Pnas
Passeggiando con Perseverance su Marte
Creators: Claudia Mignone
Publisher: name: Media Inaf
Year: 2022

Una nuova esperienza web interattiva, sviluppata dai ricercatori della Freie Universität di Berlino, permette di rivivere le esplorazioni marziane del rover Nasa Perseverance all'interno del cratere Jezero. La mappa, accessibile tramite browser, contiene immagini raccolte da diverse sonde in orbita attorno a Marte, informazioni geologiche e panorami tridimensionali del cratere e dell'area circostante
IPBES VA Chapter 6 Text Analysis - Constitutions pluralistic value approach
Creators: name: Vos, Alta De
Publisher: name: Zenodo
Year: 2020
Subjects: IPBES
Vales Assessment
Chapter 6

description: IPBES VA Chapter 6 Text Analysis - Constitutions pluralistic value approach  Code: VA_6.1_Ch6 Versioning: 02 (25.09.2020) Updated Report: 25 September 2020 Project leader(s) Alta de Vos (a.devos@ru.ac.za) Description: The IPBES VA mandate for Chapter 6 of the assessment uses the analysis of a Constitutions database to provide insights on the use of plural value approaches within national laws. A text analysis for the Constitutions was designed by identifying the combination of words that provide information towards plural value approaches.
Nondeterministic automatic complexity of overlap-free and almost square-free words
Creators: name: Hyde, Kayleigh
name: Kjos-Hanssen, Bjørn
Publisher: name: arXiv
Year: 2014
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences
subject: 68Q45, 68R15

description: Shallit and Wang studied deterministic automatic complexity of words. They showed that the automatic Hausdorff dimension $I(\mathbf t)$ of the infinite Thue word satisfies $1/3\le I(\mathbf t)\le 2/3$. We improve that result by showing that $I(\mathbf t)\ge 1/2$. For nondeterministic automatic complexity we show $I(\mathbf t)=1/2$. We prove that such complexity $A_N$ of a word $x$ of length $n$ satisfies $A_N(x)\le b(n):=\lfloor n/2\rfloor + 1$. This enables us to define the complexity deficiency $D(x)=b(n)-A_N(x)$. If $x$ is square-free then $D(x)=0$. If $x$ almost square-free in the sense of Fraenkel and Simpson, or if $x$ is a strongly cube-free binary word such as the infinite Thue word, then $D(x)\le 1$. On the other hand, there is no constant upper bound on $D$ for strongly cube-free words in a ternary alphabet, nor for cube-free words in a binary alphabet. The decision problem whether $D(x)\ge d$ for given $x$, $d$ belongs to $NP\cap E$.
description: Preliminary version: "Nondeterministic automatic complexity of almost square-free and strongly cube-free words", COCOON 2014, Lecture Notes in Computer Science 8591 (2014), 61--70
Impostazione della causa nell?esperienza codificatoria spagnola e italiana fra XIX e XX secolo ? Premesse storico-ricostruttive
Creators: name: NOCETO, FILIPPO
Publisher: name: Universit� degli studi di Genova
Year: 2022

description: Abstract Il presente lavoro intende realizzare una ricostruzione critica dell?evoluzione storico-normativa concernente la disciplina dell?introduzione e trattazione della controversia negli ordinamenti italiano e spagnolo fra XIX e XX secolo. In questa prospettiva si dedica particolare attenzione alla genesi dei rispettivi modelli di codificazione ?moderna? e al successivo dibattito sulle riforme e tentativi di riforma precedenti l?emanazione dei codici attualmente in vigore. Il tutto nell?ottica di evidenziare significative affinit� fra esperienze evolutive tradizionalmente considerate a s� stanti.
2020-2021 Series 08 NUCATS Articulating Your Mentoring Philosophy and Plan
Creators: name: Goodman, Adam
Publisher: name: Galter Health Science Library & Learning Center
Year: 2021

description: Distinguish between a mentoring plan and a mentoring philosophy. Examine different mentoring experiences. List ~10 mentoring plan behaviors that most matter to you. Propose a mentoring philosophy that is unique to you.
La turbolenta storia di un tenero asteroide
Creators: Marco Galliani
Publisher: name: Media Inaf
Year: 2022

Antichissimo, inizialmente ricco di acqua, devastato da un impatto primordiale che ne ha drasticamente ridotto le dimensioni e così morbido che la sua superficie si potrebbe tagliare con un coltello. Questi alcuni dei risultati di una nuova analisi dei campioni dell'asteroide Ryugu, raccolti e riportati sulla terra dalla missione Hayabusa 2 dell'agenzia spaziale giapponese Jaxa
title: Vodafone Turkey (B)
Creators: name: Jacobides, Michael
name: Ay, A
name: Albrighton, Tom
Publisher: name: London Business School
Year: 2014
Subjects: subject: FOS: Economics and business
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description: Vittorio Colao was appointed Chief Executive of Vodafone Group plc on 29 July 2008. Given the ongoing economic tumult, one of his first acts as CEO was to stress that the company had to 'batten down the hatchess' to survive. The days of multi-billion pound deals were over, he added. Vittorio inherited a global business present in more than 70 different countries, either through owned subsidiaries or partnerships. Vodafone had a very fast-growing subscriber base, but also some significant profitability sensitivities. A key document awaiting Vittorio's attention presented performance indicators for Vodafone's businesses in several continents. Hot topics included the future of Vodafone's partnership with Verizon in the United States, European countries' operational performance and the group's strong growth in emerging markets. Growth in subscribers, which is an important performance indicator in the telecom industry, was mainly thanks to Vodafone's acquisitions in emerging markets such as Turkey, India and South Africa. But some of these markets were also hurting the business. In Turkey, for example, Vodafone was forced to write down a GBP 2.25bn loss, mainly because upgrading the mobile network was taking much longer than expected and the group was struggling to compete with the local market leader. Turkey remained one of the most interesting markets for Vodafone, with a growing population, comparatively low penetration and new openings in the regulatory field, but Vodafone was losing market share every day. Vittorio Colao had many big calls to make, and quickly - and one of the biggest was what to do about Turkey.
description: LBS Case Code: CS-14-004
Efficient Synthesis of Network Updates
Creators: name: McClurg, Jedidiah
name: Hojjat, Hossein
name: Cerny, Pavol
name: Foster, Nate
Publisher: name: arXiv
Year: 2014
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences
subject: D.2.4; F.3.1; F.4.1; C.2.3

description: Software-defined networking (SDN) is revolutionizing the networking industry, but current SDN programming platforms do not provide automated mechanisms for updating global configurations on the fly. Implementing updates by hand is challenging for SDN programmers because networks are distributed systems with hundreds or thousands of interacting nodes. Even if initial and final configurations are correct, naively updating individual nodes can lead to incorrect transient behaviors, including loops, black holes, and access control violations. This paper presents an approach for automatically synthesizing updates that are guaranteed to preserve specified properties. We formalize network updates as a distributed programming problem and develop a synthesis algorithm based on counterexample-guided search and incremental model checking. We describe a prototype implementation, and present results from experiments on real-world topologies and properties demonstrating that our tool scales to updates involving over one-thousand nodes.
Researchers' perceptions of DH trends and topics in the English and Spanish-speaking community. DayofDH data as a case study
Creators: name: Robles-Gómez, A.
name: González-Blanco, E.
name: Ros, S.
name: del Rio, G.
name: Hernández, R.
name: Tobarra, L.
name: Caminero, A.
name: Pastor, R.
Publisher: name: Zenodo
Year: 2016
Subjects: Topic Characterization
Data Mining
Visual Analytics
Blogging

description: Defining the “state of the art” in Digital Humanities (DH) is a really challenging task, given the range of contents that this tag covers. One of the most successful efforts in this sense has been the international blogging event known as “DayofDH” or “A Day in the Life of the Digital Humanities” project, promoted and sponsored by centerNet ( http://www.dhcenternet.org/), which has put together digital humanists from around the world to document once a year what they do (Rockwell et al., 2012). The websites of DayofDH were hosted in North America until 2015, when it was coordinated in Europe by LINHD ( http://linhd.uned.es), the Digital Innovation Lab, at UNED in Madrid. Participants belong to several countries around the world.
IPBES VA Chapter 6 Text Analysis - Constitutions Pluralistic Value Approach
Creators: name: Vos, Alta De
Publisher: name: Zenodo
Year: 2020
Subjects: IPBES
Vales Assessment
Chapter 6

description: IPBES VA Chapter 6 Text Analysis - Constitutions Pluralistic Value Approach  Code: VA_6.1_Ch6 Versioning: 02 (25.09.2020) Updated Report: 25 September 2020 Description: The IPBES VA mandate for Chapter 6 of the assessment uses the analysis of a Constitutions database to provide insights on the use of plural value approaches within national laws. A text analysis for the Constitutions was designed by identifying the combination of words that provide information towards plural value approaches.
Recent advances in the modelling of renal function
Creators: name: Lory, Peter
Publisher: name: Universität Regensburg
Year: 1993
Subjects: subject: 330 Wirtschaft

description: Differential equation models have become an indispensable tool in the effort towards a complete understanding of hypertonic urine formation. Recent advances in this field include the treatment of a kidney model as an inverse prob lern, the modelling of the three-dimensional Organization of the renal medulla, and dynamic models for the tubuloglomerular feedback mechanism. The latter make use of techniques from bifurcation and chaos theory.