cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exact Bayesian Inference for Discretely Observed Markov Jump Processes Using Finite Rate Matrices
Creators: name: Sherlock, Chris
name: Golightly, Andrew
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: We present new methodologies for Bayesian inference on the rate parameters of a discretely observed continuous-time Markov jump process with a countably infinite statespace. The usual method of choice for inference, particle Markov chain Monte Carlo (particle MCMC), struggles when the observation noise is small. We consider the most challenging regime of exact observations and provide two new methodologies for inference in this case: the minimal extended statespace algorithm (MESA) and the nearly minimal extended statespace algorithm (nMESA). By extending the Markov chain Monte Carlo statespace, both MESA and nMESA use the exponentiation of finite rate matrices to perform exact Bayesian inference on the Markov jump process even though its statespace is countably infinite. Numerical experiments show improvements over particle MCMC of between a factor of three and several orders of magnitude. Supplementary materials for this article are available online.
Single-shot measurement of free-electron laser polarization at SDUV-FEL
Creators: name: Feng, Lie
name: Deng, Haixiao
name: Zhang, Tong
name: Feng, Chao
name: Chen, Jianhui
name: Wang, Xingtao
name: Lan, Taihe
name: Shen, Lei
name: Zhang, Wenyan
name: Yao, Haifeng
name: Liu, Xiaoqing
name: Liu, Bo
name: Wang, Dong
Publisher: name: arXiv
Year: 2014
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this paper, a division-of-amplitude photopolarimeter (DOAP) for measuring the polarization state of free-electron laser (FEL) pulse is described. The incident FEL beam is divided into four separate beams, and four Stokes parameters can be measured in a single-shot. In the crossed-planar undulators experiment at Shanghai deep ultraviolet FEL test facility, this DOAP instrument constructed in house responses accurately and timely while the polarization-state of fully coherent FEL pulses are switched, which is helpful for confirming the crossed-planar undulators technique for short-wavelength FELs.
description: 6 pages, 5 figures, submitted to Chinese Physics C
The Twenty-First Century Conflicts
Creators: name: Marsili, Marco
Publisher: name: Zenodo
Year: 2018
Subjects: conflict
war
law of war
international law
international humanitarian law (IHL)
Geneva Law
Geneva Conventions
terrorists
non-state
North Atlantic Treaty Alliance (NATO)
European Union (EU)
The Hague conventions
War on Terror

description: Alongside non-international and international conflict, a third category of armed conflict is emerging: hybrid, asymmetric, and transnational conflict which involve state and non-state actors such as insurgents or terrorist organizations. Unconventional conflicts are among the trend topics of defense and security, and they pose a threat to the stability of international order. States and international organizations, such as the UN and NATO, face difficulty using legal tools currently provided by international law, in particular international humanitarian law (IHL) and the law of war (Geneva and Hague conventions). The question is how current international law applies or can be adapted to these conflicts. There are some questions to be fixed. First, we should find whether new rules are required to deal with situations of hybrid conflict, or if current rules are still valid and can be used/adapted. Secondly, we should determine whether IHL applies in transnational armed conflict against non-state groups, and if their members cease to be targetable during a pause in their active involvement, and whether there can be a non-international armed conflict which has no finite territorial boundaries with a non-state armed group operating transnationally. Lastly, we should assess whether attacks carried out by a transnational organisation and its affiliates meet the criteria of qualifying as a state of armed conflict under IHL.
description: This poster was presented at 14h00 in the Parallel Session AR1, Part 1, at the Instituto Universitário Militar (IUM), Lisboa, Portugal, and later published in the conference proceedings, together with an extended abstract of the presentation. This poster received financial support by the European Social Fund (ESF) and by the Fundação para a Ciência e a Tecnologia (FCT), Portugal, under research grant SFRH/BD/136170/2018.
Analysis of Process Parameters Effects on Final Properties of Additively Manufactured Components for Space Applications
Creators: name:  DAVIDE ZUIN
name:   SIMONE LA LUNA
name:   FILIPPO MAGGI
name:   NICOLA SICIGNANO
name:   DOMENICO BORRELLI
Publisher: name: Proceedings of the Aerospace Europe Conference - EUCASS - CEAS - 2023
Year: 2023
Subjects: ADDITIVE MANUFACTURING
SELECTIVE LASER MELTING
INCONEL 718
QUALITY ASSURANCE
PROCESS PARAMETERS
STANDARDIZATION

description: This paper presents an analysis of the criticalities associated to AM SLM machine process parameters for metals within space propulsive applications through a dedicated design of experiment. In.cone! 718 is considered: the effects of manufacturing process parameters on the final metallurgical properties of a part are discussed through dedicated samples printing. A skin-core scan strategy is applied to evaluate specimens\' internal part (body) and external (contour) parameters separately. The target is the definition of a proper processing window for the two areas in terms of laser power, scan speed, hatch space where optimized parameters lead to minimal defects on samples. In particular, the influence of the process window on the final samples\' dimension, density, porosity and hardness is evaluated, leading to the selection of a subset of process data feasible for space propulsive components manufacturing.
Adaptive Handling of Dependence in High-Dimensional Regression Modeling
Creators: name: Hébert, Florian
name: Causeur, David
name: Emily, Mathieu
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Dependence within a high-dimensional profile of explanatory variables affects estimation and prediction performance of regression models. However, the strong belief that dependence should not be ignored, based on our well-proven knowledge of low-dimensional regression modeling, is not necessarily true in high dimension. To investigate this point, we introduce a new class of prediction scores defined as linear combinations of a same random vector, including the naive prediction score obtained when ignoring dependence and the Ordinary Least Squares (OLS) prediction score that, on the contrary, fully accounts for dependence by a preliminary whitening of the explanatory variables. Interestingly, the former class also contains Ridge and Partial Least Squares prediction scores, that both offer intermediate ways of dealing with dependence. Through a theoretical comparative study, it is first shown how the best handling of dependence should depend on the interplay between the structure of conditional dependence across explanatory variables and the pattern of the association signal. We also derive the closed form expression of the prediction score with best prediction performance within the proposed class, leading to an adaptive handling of dependence. Finally, it is demonstrated through simulation studies and using benchmark datasets that this prediction score outperforms existing methods in various settings. Supplementary materials for this article are available online.
A Hybrid Feature Selection Method to Improve Performance of a Group of Classification Algorithms
Creators: name: Naseriparsa, Mehdi
name: Bidgoli, Amir-Masoud
name: Varaee, Touraj
Publisher: name: arXiv
Year: 2014
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In this paper a hybrid feature selection method is proposed which takes advantages of wrapper subset evaluation with a lower cost and improves the performance of a group of classifiers. The method uses combination of sample domain filtering and resampling to refine the sample domain and two feature subset evaluation methods to select reliable features. This method utilizes both feature space and sample domain in two phases. The first phase filters and resamples the sample domain and the second phase adopts a hybrid procedure by information gain, wrapper subset evaluation and genetic search to find the optimal feature space. Experiments carried out on different types of datasets from UCI Repository of Machine Learning databases and the results show a rise in the average performance of five classifiers (Naive Bayes, Logistic, Multilayer Perceptron, Best First Decision Tree and JRIP) simultaneously and the classification error for these classifiers decreases considerably. The experiments also show that this method outperforms other feature selection methods with a lower cost.
description: 8 pages. arXiv admin note: substantial text overlap with arXiv:1403.1946; and text overlap with arXiv:1106.1813 by other authors
On the colour of the dark side of the Moon
Creators: name: Thejll, Peter
name: Flynn, Chris
name: Gleisner, Hans
name: Andersen, Torben
name: Ulla, Ana
name: Owner-Petersen, Mette
name: Darudi, Ahmad
name: Schwarz, Henriette
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Aims. 'Earthshine' is the dim light seen on the otherwise dark side of the Moon, particularly when it is close to new. 'Earthlight', or reflected sunlight from the Earth, is the source of Earthshine. Using B and V band CCD images of both the dark and bright side of the Moon, we aim to estimate the Johnson photometry B-V colour of the Earthshine for the first time since the late 1960s. From these measurements we are also able to quantify the colour of Earthlight. Methods. We present images of the Moon taken with a small refractor in Hawaii, in B and V bands and taken under favourable conditions so that scattered light in both bands almost completely cancels, yielding a map of the surface in B-V colour. Co-addition of 100 such images taken in rapid succession substantially improves the signal to noise ratio, and several sources of photometric bias are eliminated by use of relative methods. Results. The earthlit dark side of the Moon is observed to be 0.150 +/- 0.005 mag bluer in B-V than the sunlit bright side, in good agreement with the only known previous measurement of this quantity from 1967. Arguing on the basis of the change in B - V for sunlight reflected once o? the Moon, we derive a colour for earthlight of B-V = 0.44+/-0.02 mag (without applying a small, uncertain, phase-dependent reddening correction). The absence of a colour-gradient in the B-V image implies that the scattering properties of the atmosphere+optical system are almost exactly matched in the two wavelength bands, the consequences of which are discussed.
The giant HII region NGC 588 as a benchmark for 2D photoionisation models
Creators: name: Perez-Montero, Enrique
name: Monreal-Ibero, Ana
name: Relano, Monica
name: Vilchez, Jose M.
name: Kehrig, Carolina
name: Morisset, Christophe
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use optical integral field spectroscopy and 8 and 24 micron mid-IR observations of the giant HII region NGC 588 in the disc of M33 as input and constraints for two-dimensional tailor-made photoionisation models. Two different geometrical approaches are followed for the modelling structure: i) Each spatial element of the emitting gas is studied individually using models which assume that the ionisation structure is complete in each element to look for azimuthal variations across gas and dust. ii) A single model is considered, and the two-dimensional structure of the gas and the dust are assumed to be due to the projection of an emitting sphere onto the sky. The models in both assumptions reproduce the radial profiles of Hbeta surface brightness, the observed number of ionising photons, and the strong optical emission-line relative intensities. The first approach produces a constant-density matter-bounded thin shell of variable thickness and dust-to-gas ratio, while the second gives place to a radiation-bounded thick shell sphere of decreasing particle density. However, the radial profile of the 8/24 microns IR ratio, depending on the gas and dust geometry, only fits well when the thick-shell model is used. The resulting dust-to-gas mass ratio, which was obtained empirically from the derived dust mass using data from Spitzer, also has a better fit using the thick-shell solution. In both approaches, models support the chemical homogeneity, and the ionisation-parameter radial decrease, These results must be taken with care in view of the very low extinction values that are derived from the IR, as compared to that derived from the Balmer decrement. Besides, the IR can be possibly contaminated with the emission from a cloud of diffuse gas and dust above the plane of the galaxy detected at 250 micron Herschel image.
description: 16 pages, 14 figures. Accepted for publication in Astronomy & Astrophysics. Fig. 1 included
Koppe's Work of 1948: A fundamental for non-equilibrium rate of particle production
Creators: name: Tawfik, Abdel Nasser
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In 1948, Koppe formulated an almost complete recipe for statistical-thermal models including particle production, formation and decay of resonances, temporal and thermal evolution of the interacting system, statistical approaches and equilibrium condition in final state of the nuclear interaction. As the rate of particle production was one of the basic assumptions, recalling Koppe's work would be an essential input to be involved in the statistical prediction of non-equilibrium particle production in recent and future ultra-relativistic collisions.
description: 3 pages, 0 figures
LEONEEDS - A Space Debris Recycling Space Station
Creators: name:  JOSHUA BENARROCH
name:   MARIANNE BLIN
name:   ROMAIN GARDON
name:   WASHINGTON GEORGES
name:   THEO PODOLSKY
Publisher: name: Proceedings of the Aerospace Europe Conference - EUCASS - CEAS - 2023
Year: 2023
Subjects: SPACE STATION
SPACE DEBRIS
DEBRIS
STATION
RECYCLING
RECYCLER
DEORBITING
DEORBITATION
LUNAR GATEWAY
CIRCULAR ECONOMY

description: The threat posed by space debris, at all altitudes, has become a big subject of research for the space industry, especially for young startups. The space sector is always on the lookout for more projects and solutions towards space debris removal. We could mention ESA and ClearSpace SA\'s efforts to bring together new types of missions and demonstrators, being one of the most advanced space debris removal projects. LEON EEDS, named after the Leonids meteor shower, is a space station concept aimed directly at the treatment of space debris in Low Earth Orbit (LEO). The main goals of the project are the use of a permanent Low Earth Orbit space station, in collaboration with space tugs startups, to remove or recycle space debris. Its objective is to recycle, in orbit, space debris that could serve a new use, for example in collaboration with the future Lunar Orbital Platform-Gateway (LOPG). A second use would be the deorbitation, under thermal shields, of inactive satellites or satellite parts, which would be flight-proven (Technology Readiness -Level 9) and less expensive to produce for young startups or new space programs. Partnerships on the subject of space tugs could allow the new space economy to evolve towards reusability. This reusability would allow the space sector to develop a circular economy, by bringing back previous space missions, either to refuel and re-launch them, or to gain access -either for students, startups or emerging countries -to older space missions, to gain valuable data on the ageing of such missions and the effects of the harsh space environment. LEON EEDS could also serve as a technology enabler, to allow on-orbit testing while still being able to gather data from the mission as it comes back to Earth. The options for such a space station are almost limitless. Any space actor could benefit from a circular economy. This station has the potential to reinvent on-orbit services, using on-orbit recycling and potential refueling in the long term. The proposed services could first reduce the numbers of new debris through life extension missions, but also reduce the current amount of debris in the short term, while allowing a circular space economy, by letting space debris to come back to Earth for a second life. Would you throw away your phone once it runs out of battery? This is more or less what\'s currently done in space with old satellites -why not change the way we treat debris in space? Copyright 2023 by First Author. Posted on line by the EUCASS association with permission.
title: Dogville e Manderlay. La giustizia messa-in-scena
Creators: name: Nardin , Massimo
Publisher: name: Roma Tre-Press
Year: 2006

description: Il contributo discute due lungometraggi del regista Lars von Trier: Dogville (2003) e Manderlay (2005). Le due pellicole mettono in scena due concezioni diverse della giustizia. Mentre in Dogville è la paura a fare da comune denominatore, in Manderlay è lo scontro di opposte concezioni della giustizia a dominare il racconto, ma proprio per ciò la giustizia viene tematizzata, vista nel suo costruirsi (o disfarsi).

description: B@belonline vol. 2 Amicizia e Ospitalità. Da e per Jacques Derrida
[Videopresentation - Globecom21] On the performance of blockchain-enabled RAN-as-a-service in beyond 5G
Creators: name: Wilhelmi, Francesc
Publisher: name: Zenodo
Year: 2021

description: Videopresentation of the paper entitled "On the performance of blockchain-enabled RAN-as-a-service in beyond 5G", presented at Globecom 2021. Authors: Francesc Wilhelmi & Lorenza Giupponi Abstract: Blockchain (BC) technology can revolutionize the future of communications by enabling decentralized and open sharing networks. In this paper, we propose the application of BC to facilitate Mobile Network Operators (MNOs) and other players such as Verticals or Over-The-Top (OTT) service providers to exchange Radio Access Network (RAN) resources (e.g., infrastructure, spectrum) in a secure, flexible and autonomous manner. In particular, we propose a BC-enabled reverse auction mechanism for RAN sharing and dynamic users' service provision in Beyond 5G networks, and we analyze its potential advantages with respect to current service provisioning and RAN sharing schemes. Moreover, we study the delay and overheads incurred by the BC in the whole process, when running over both wireless and wired interfaces.
Bayesian inference for ocean transport and diffusivity fields from Lagrangian trajectory data
Creators: name: Ying, Yik Keung
Publisher: name: The University of Edinburgh
Year: 2020
Subjects: climate prediction models
mesoscale eddies
Bayesian framework
eddy diffusivity
synthetic trajectory data

description: Eddy diffusion is commonly used to characterise subgrid-scale mixing of tracer quantities in geophysical fluid simulations. Limited by data availability, estimating eddy diffusivity from observational data remains challenging. This thesis describes a novel Bayesian framework to infer ocean transports and diffusivity fields from Lagrangian trajectories data. Modelling the Lagrangian trajectories by a stochastic differential equation whose transition density is given by the advection--diffusion equation, this framework produces a posterior probability distribution for the parameters defining the transport and diffusivity fields, enabling uncertainty quantification. In this thesis, Lagrangian trajectories from a three-layer quasigeostrophic double-gyre configuration are used to test the inference schemes. The double-gyre is a classic idealisation of large-scale ocean circulation. Mesoscale eddies are continuously produced and dissipated, leading to a complicated time-dependent flow which can plausibly be coarse-grained as diffusion and suitably used to validate the new inference schemes. Different approaches are implemented based on the Bayesian framework. In a local approach, the ocean domain is divided into an array of cells. Cell-wise defined linear velocity and constant diffusivity fields are inferred using the displacement data of Lagrangian particles originating from the cell. This approach proves capable of estimating the diffusivity in areas with a slow flow such that particles remain in the neighbourhood of their originating cell, but it fails to account for the particle trajectories straddling multiple cells in the considered time interval. An approach to correct the inference for particles straddling two cells is devised using large deviation theory, assuming the dominance of advective transport over diffusive transport. This approach successfully infers piecewise constant velocity and diffusivity using synthesised trajectories, especially in the limit of increasing dominance of advection. A global approach is then developed to infer velocity and diffusivity fields defined on the entire domain. This resolves the locality restriction on the trajectory data in the local approach. A naïve implementation of the global inference, however, involves an exceedingly large number of solutions to the advection--diffusion equation. A data coarse-graining approach is applied to overcome the computational challenge. The impact of the data coarse-graining procedures is quantified in the limit of large data. The global approach is applied to the double-gyre simulation data, using a finite volume method for the solution of advection--diffusion equation. The results demonstrate that the global approach enables a robust inference of the mean flow and diffusivity fields at varying sampling interval
Investigating the role of S-nitrosylation in plant antiviral defense
Creators: name: Monteiro, Muriel
Publisher: name: The University of Edinburgh
Year: 2021
Subjects: S-nitrosylation
antiviral response
TuMV
gsnor1-3

description: S-Nitrosylation, a post-translational modification, involves specific reversible incorporation of nitric oxide (NO) moiety to protein cysteine thiol to form an S-nitrosothiol (SNO). The cellular level of S-nitrosylation is maintained by S-nitroso glutathione reductase (GSNOR), an enzyme involved in the turnover of NO reservoir, S-nitroso glutathione (GSNO). Loss of function of AtGSNOR1 leads to increased SNO level and compromised immune response against bacterial and fungal pathogens. Similar consequences are observed in plants with excessive NO production. However, not much is known about the role of S-nitrosylation in antiviral response in plants which we aim to tackle in this study. Arabidopsis mutants with varying level of nitric oxide (NO) and SNO: gsnor1-3, gsnor1-3R, nox1, TRXh5 (nox1) were selected. These mutants along with controls (Col-0, eIF(iso)4E‐1) were inoculated with a Green Fluorescent Protein (GFP)-tagged potyvirus, Turnip mosaic virus (TuMV-GFP) to study susceptibility to viral infection. The susceptibility assay demonstrated higher viral resistance in plants with increased SNO levels. This observation contrasts with the observation made with bacterial and fungal pathogens. Multiple facets associated with both host and pathogen were explored, to understand the underlying mechanism behind TuMV resistance in plants with higher SNO level. To achieve this, we focused on gsnor1-3 mutants due to clearly displayed delayed viral infection, infection progression pattern and ease of viral inoculation. This SNO mutant displayed slower onset of viral infection in rub-inoculated leaves, however viral replication rate and cell to cell movement was not hampered. We found that the systemic movement of TuMV was slower and delayed in gsnor1-3 plants. This was confirmed by evaluation of gsnor1-3 morphology that showed variation in plasmodesmata number, vascular pattern, and phloem transport rate, suggesting cumulative effect of host factors on delayed viral movement.
Plasma Phenomenology in Astrophysical Systems: Radio-Sources and Jets
Creators: name: Montani, G.
name: Petitta, J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We review the plasma phenomenology in the astrophysical sources which show appreciable radio emissions, namely Radio-Jets from Pulsars, Microquasars, Quasars and Radio-Active Galaxies. A description of their basic features is presented, then we discuss in some details the links between their morphology and the mechanisms that lead to the different radio-emissions, investigating especially the role played by the plasma configurations surrounding compact objects (Neutron Stars, Black Holes). For the sake of completeness, we briefly mention observational techniques and detectors, whose structure set them apart from other astrophysical instruments. The fundamental ideas concerning Angular Momentum Transport across plasma accretion disks (together with the disk-source-jet coupling problem) are discussed, by stressing their successes and their shortcomings. An alternative scenario is then inferred, based on a parallelism between astrophysical and laboratory plasma configurations, where small-scale structures can be found. We will focus our attention on the morphology of the radio-jets, on their coupling with the accretion disks and on the possible triggering phenomena, viewed as profiles of plasma instabilities.
description: 20 pages, 6 figures
The Sense Annotation of BulTreeBank
Creators: name: Popov, Aleksander
name: Kancheva, Stanislava
name: Manova, Svetlomira
name: Radev, Ivaylo
name: Simov, Kiril
name: Osenova, Petya
Publisher: name: University of Tübingen
Year: 2014

description: The paper focuses on the sense annotation of BulTreeBank. It discusses three levels of annotation: valency frames, lexical senses and DBPedia URIs. The lexical sense annotation is considered in more detail and in relation to the other two processes. Special attention is paid to the quality validation with respect to two aspects: inter-annotator agreement and cross-resource control.
Determination of the quantized topological magneto-electric effect in topological insulators from Rayleigh scattering
Creators: name: Ge, Lixin
name: Zhan, Tianrong
name: Han, Dezhuan
name: Liu, Xiaohan
name: Zi, Jian
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Topological insulators (TIs) exhibit many exotic properties. In particular, a topological magneto-electric (TME) effect, quantized in units of the fine structure constant, exists in TIs. In this Letter, we study theoretically the scattering properties of electromagnetic waves by TI circular cylinders particularly in the Rayleigh scattering limit. Compared with ordinary dielectric cylinders, the scattering by TI cylinders shows many unusual features due to the TME effect. Two proposals are suggested to determine the TME effect of TIs simply based on measuring the electric-field components of scattered waves in the far field at one or two scattering angles. Our results could also offer a way to measure the fine structure constant.
description: 15 pages, 4 figures
title: Una parola per l’impossibile. “Avvenire” dell’evento etico in Jacques Derrida
Creators: name: Mulè , Paolo
Publisher: name: Roma Tre-Press
Year: 2006

description: Se effettivamente il possibile si rivela in ciò che è dato; se, cioè, il regno della possibilità dimora in ciò che, per la nostra coscienza, rappresenta già un dato, ossia un dovuto e determinato oggetto di sapere, allora ciò che deve ancora essere, venire o divenire, ciò che ancora resta e sempre resterà da dare, tutto ciò è l'impossibile.

description: B@belonline vol. 2 Amicizia e Ospitalità. Da e per Jacques Derrida
A Komatu-Loewner Equation for Multiple Slits
Creators: name: Böhm, Christoph
name: Lauf, Wolfgang
Publisher: name: arXiv
Year: 2014
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30C20, 30C55

description: We give a generalization of the Komatu-Loewner equation to multiple slits. Therefore, we consider an $n$-connected circular slit disk $Ω$ as our initial domain minus $m\in \mathbb{N}$ disjoint, simple and continuous curves that grow from the outer boundary $\partial \mathbb{D}$ of $Ω$ into the interior. Consequently we get a decreasing family $(Ω_t)_{t\in[0,T]}$ of domains with $Ω_0=Ω$. We will prove that the corresponding Riemann mapping functions $g_t$ from $Ω_t$ onto a circular slit disk, which are normalized by $g_t(0)=0$ and $g_t'(0)>0$, satisfy a Loewner equation known as the Komatu-Loewner equation.
description: 26 pages, 8 figures
Quantum States as Ordinary Information
Creators: name: Wharton, Ken
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Despite various parallels between quantum states and ordinary information, quantum no-go-theorems have convinced many that there is no realistic framework that might underly quantum theory, no reality that quantum states can represent knowledge *about*. This paper develops the case that there is a plausible underlying reality: one actual spacetime-based history, although with behavior that appears strange when analyzed dynamically (one time-slice at a time). By using a simple model with no dynamical laws, it becomes evident that this behavior is actually quite natural when analyzed "all-at-once" (as in classical action principles). From this perspective, traditional quantum states would represent incomplete information about possible spacetime histories, conditional on the future measurement geometry. Without dynamical laws imposing additional restrictions, those histories can have a classical probability distribution, where exactly one history can be said to represent an underlying reality.
description: 16 pages, 3 figures
PSN: Portfolio Social Network
Creators: name: Cortes, Jordi M.
name: Nizamani, Sarwat
name: Memon, Nasrullah
Publisher: name: arXiv
Year: 2013
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: In this paper we present a web-based information system which is a portfolio social network (PSN) that provides solutions to recruiters and job seekers. The proposed system enables users to create portfolios so that he/she can add his specializations with piece of code, if any, specifically for software engineers, which is accessible online. The unique feature of the system is to enable the recruiters to quickly view the prominent skills of the users. A comparative analysis of the proposed system with the state of the art systems is presented. The comparative study reveals that the proposed system has advanced functionalities.
Given to the River' and 'Form, Context and Tone in Eliot, Auden and MacNeice'
Creators: name: Lawrenson, Dorothy Jane
Publisher: name: The University of Edinburgh
Year: 2021
Subjects: William McGonagall
T.S. Eliot
W.H. Auden
Louis MacNeice
poetry
writing poetry

description: Given to the River is a collection of poetry in which I explore themes of landscape, memory, mortality and the passage of time. Predominantly comprising lyric poetry in free verse, the collection also features some traditional and experimental forms, as well as a suite of six poems that exist in both Scots and English language versions. The collection is unified by recurring motifs of rivers, bridges, shorelines, estuaries and the sea. It attends to the flow of rivers and tides, and to activities such as beachcombing and seafaring, to meditate on the relationship between human emotional or intellectual concerns and the larger recurring movements of nature. A specific sense of place is evident in some of the poems, especially those concerning the river Tay, which explore childhood memories as well as the history of the Tay Bridge disaster. Many of the poems draw on personal, autobiographical subject matter. “The cut-off” and “My mother asks me to knit her a hat”, for example, explore the emotional challenges involved in navigating relationships between people who are widely separated geographically. “The lowes” / “The fires” and “Hansel” / “New-Year gift” explore the tension between the speaker’s desire to look backwards – to the past year or to the security of childhood – and her acknowledgment of the future’s inevitable uncertainty and the impermanence of physical forms. An element of fantasy enters into some poems, as in the speaker’s desire to be divested of her name in “A meditation on my Christian name”, or in the erasure “Epitaph for a Tragedian”, which reorganises William McGonagall’s words into stream-of-consciousness free verse. The collection is punctuated by four instalments of a long sequence, “Rax me that poem”, whose haiku-like stanzas obliquely approach the problems of writing poetry. In the accompanying critical study, Form, Context and Tone in Eliot, Auden and MacNeice, I analyse aspects of poems by T.S. Eliot, W.H. Auden and Louis MacNeice, to demonstrate how formal features depend on context to influence tone and thereby voice and meaning. Focusing on Eliot’s use of chiasmus in Four Quartets, voice and verse in early Auden, and iterativity in early and late MacNeice, I discuss various ways in which these works exploit relationships between form and context, and I consider the resulting tonal effects. I argue that, for all three poets, these relationships and effects contribute to addressing preoccupations with identity, temporality and mortality.
On radiative corrections to polarization observables in electron-proton scattering
Creators: name: Borisyuk, Dmitry
name: Kobushkin, Alexander
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We consider radiative corrections to polarization observables in elastic electron-proton scattering, in particular, for the polarization transfer measurements of the proton form factor ratio $μG_E/G_M$. The corrections are of two types: two-photon exchange (TPE) and bremsstrahlung (BS); in the present work we pay special attention to the latter. Assuming small missing energy or missing mass cut-off, the correction can be represented in a model-independent form, with both electron and proton radiation taken into account. Numerical calculations show that the contribution of the proton radiation is not negligible. Overall, at high $Q^2$ and energies the total correction to $μG_E/G_M$ grows, but is dominated by TPE. At low energies both TPE and BS may be significant; the latter amounts to ~ 0.01 for some reasonable cut-off choices.
description: 10 pages, 4 figures
Cooperação Internacional e a Educação Superior em Design: Um Caso de Desenvolvimento em Contexto Erasmus
Creators: name: Miranda, J.L.
name: Matos, P.
name: Correia, V.
name: Gaspar, A.P.
name: Mendes, L
Publisher: name: Zenodo
Year: 2014
Subjects: Design de Comunicação;
multimédia;
educação superior;
cooperação internacional;
erasmus

description: A cooperação internacional é uma componente relevante na construção da rede europeia de Ensino Superior, contribuindo também na educação superior em ciências criativas. Apresenta-se um caso em que um programa intensivo Erasmus (Optimization and DSS for SC, http://cordis.europa.eu/event/rcn/34150_en.html), o qual decorreu no triénio 2011-2014 na Escola Superior de Tecnologia e Gestão (ESTG) do Instituto Politécnico de Portalegre (IPP), serve de motivação para o desenvolvimento de produtos de Design de Comunicação e Multimédia. Neste contexto, consideram-se diversas atividades curriculares e extracurriculares de cursos superiores destas áreas na ESTG/IPP: do Curso de Especialização Tecnológica em Desenvolvimento de Produtos Multimédia durante o ano letivo 2012/13; da Licenciatura em Design da Comunicação em 2013/14. Além da respeitante análise de produtos e atividades, discutem-se os atributos relevantes para o impacto da IDT na educação superior em Design, bem como para a articulação económica e com o meio envolvente. Finaliza-se apresentando as principais conclusões, bem como os desenvolvimentos futuros e em curso.
description: PRESENTATION at: IV Seminário de I&DT: cooperar para inovar (IV Seminar of R&DT: Cooperate to Innovate), C3I-Coordenação Interdisciplinar para a Investigação e Inovação (Portalegre Polytechnics Institute, Portugal, 24-25 November 2014)
Rapid Embedded Wire Heating via Resistive Guiding of Laser-Generated Fast Electrons as a Hydrodynamic Driver
Creators: name: Robinson, A. P. L.
name: Schmitz, H.
name: Pasley, J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Resistively guiding laser-generated fast electron beams in targets consisting of a resistive wire embedded in lower $Z$ material should allow one to rapidly heat the wire to over 100eV over a substantial distance without strongly heating the surrounding material. On the multi-ps timescale this can drive hydrodynamic motion in the surrounding material. Thus ultra-intense laser solid interactions have the potential as a controlled driver of radiation hydrodynamics in solid density material. In this paper we assess the laser and target parameters needed to achieve such rapid and controlled heating of the embedded wire.
The effect of working memory capacity on word recognition speed in Arabic second grade readers
Creators: name: El-Mir, Mohammed
Publisher: name: figshare
Year: 2022
Subjects: Applied Psychology

description: The current study examined the effect of working memory capacity (WMC) on word recognition speed (WRS) in Arabic second grade readers. We start from the hypothesis that WRS performance depends on WMC. Two groups of good and poor readers were tested on measures of WMC and WRS.The results show that high working memory (WM) span readers are more rapid in word recognition (WR) than low WM span readers. We found also high correlations between WMC and WRS, which means that WMC can be a good predictor of word recognition ability in Arabic orthography.
Evolution of remarkable chromosome dynamics in two insect families with paternal genome elimination
Creators: name: Hodson, Christina Nicole
Publisher: name: The University of Edinburgh
Year: 2021

description: During meiosis in diploid organisms, Mendel’s laws suggest that homologous chromosomes should recombine and be randomly distributed to gametes. This is true for meiosis in most organisms, however, in some cases, chromosome transmission is not random, and can be biased depending on a number of factors including the parent of origin of a chromosome or selfish genes located on the chromosome. Why and how non-Mendelian inheritance evolves is not well understood in many cases, but having a good understanding of the evolution of these systems is important for establishing under what scenarios non-Mendelian inheritance might evolve and how meiosis is manipulated by certain chromosomes. This thesis focuses on two insect clades that exhibit non-Mendelian inheritance: scale insects in the family Eriococcidae and fungus gnats in the superfamily Sciaroidea. Both of these families exhibit a non-Mendelian inheritance system known as paternal genome elimination (PGE), where males only transmit chromosomes inherited from their mother to future generations. In Sciaroidea, I focus on one species with an unusual genetic system: Bradysia coprophila, which in addition to PGE has an unusual reproduction system in several other respects. I examine content and evolution of germline restricted chromosomes, which are present in the germ cells in this species but eliminated from somatic cells early in development. I characterise how many genes are on these chromosomes, and explore using genomic methods how these chromosomes evolved. I also conduct a mating preference experiment on B. coprophila to determine whether the chromosome inheritance system in this species affects male mating preferences, as this is one case among animals where we may expect males to evolve mating preferences for certain types of females. In Eriococcidae, how PGE occurs is labile, and transitions between different types of PGE are not well understood. I conduct of survey of species to establish how male meiosis differs in species across this clade, how the type of PGE affects paternal chromosomes in somatic cells, and whether there is any evidence for transitions to new genetic systems (i.e., loss of PGE) in any species within this clade. Studying these two insect systems can provide information about what happens in lineages when non-Mendelian chromosome inheritance evolves. We can determine how this affects a species behaviour, the mechanisms of chromosome inheritance, and genome evolution.
SND metadata profile: Entry level profile
Creators: name: Swedish National Data Service
Publisher: name: Zenodo
Year: 2023
Subjects: metadata
metadata profile
SND metadata profile
Swedish National Data Service
SND

description: To make it easier for researchers from various fields to describe and share data, SND has developed several metadata profiles that are specific for certain fields, or topics. SND also offers a general profile to fit broader uses, and a profile for entry level data; a minimum metadata profile that fulfils the DataCite requirements to issue a DOI for a dataset.
description: Funded by the Swedish Research Council.
SND metadata profile: Entry level profile
Creators: name: Swedish National Data Service
Publisher: name: Zenodo
Year: 2022
Subjects: metadata
metadata profile
SND metadata profile
Swedish National Data Service
SND

description: To make it easier for researchers from various fields to describe and share data, SND has developed several metadata profiles that are specific for certain fields, or topics. SND also offers a general profile to fit broader uses, and a profile for entry level data; a minimum metadata profile that fulfils the DataCite requirements to issue a DOI for a dataset. A new version of this document is in progress.
description: Funded by the Swedish Research Council.
QED spectra in the path integral formalism
Creators: name: Simonov, Yu. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Relativistic Hamiltonians, derived from the path integrals, are known to provide a simple and useful formalism for hadrons spectroscopy in QCD. The accuracy of this approach is tested using the QED systems, and the calculated spectrum is shown to reproduce exactly that of the Dirac hydrogen atom, while the Breit-Fermi nonrelativistic expansion is obtained using Foldy-Wouthuizen transformation. Calculated positronium spectrum, including spin-dependent terms, coincides with the standard QED perturbation theory to the considered order O(alpha^s).
description: 18 pages
Quantum Fisher Information of W States in Decoherence Channels
Creators: name: Ozaydin, Fatih
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the quantum Fisher information (QFI) of W states analytically with respect to SU(2) rotations in the basic decoherence channels i.e. depolarizing (DPC), amplitude damping (ADC) and phase damping (PDC), and present the interesting behavior of QFI of W states, especially when compared to that of GHZ states [Ma et al., Phys. Rev. A, 84, 022302 (2011)]. We find that when initially pure W states are under decoherence, i) DPC: as decoherence starts and increases, QFI smoothly decays; ii) ADC: just as decoherence starts, QFI exhibits a sudden drop to the shot noise level and as decoherence increases, QFI continues to decrease to zero and then increases back to the shot noise level; iii) PDC: just as decoherence starts, a sudden death of QFI occurs and QFI remains zero for any rate of decoherence, therefore W states in phase damping channel do not provide phase sensitivity. We also find that, on the contrary to GHZ states, pure or decohered W states are not sensitive with respect to rotations in z direction and the sensitivities with respect to rotations in x and y directions are equal to each other, implying no sudden change points of QFI due to competition between directions.
description: 3 pages, 1 (eps) figure. Comments are welcome
Influence of rhizobial symbiosis on chickpea root system architecture
Creators: name: Concha Vidal, Cristóbal Maximiliano
Publisher: name: The University of Edinburgh
Year: 2021

description: Since most soil resources are heterogeneously distributed, root distribution, termed root system architecture (RSA), is critical for plant nutrition. Rhizobia are bacteria that establish symbioses with legume roots, where they provide N in return for C, thus satisfying most of their hosts’ N requirements. To better understand their impact on legume RSA, this was investigated in chickpea. A large rhizobox (RB) system allows almost unrestricted root growth and to capture up to 90% of the root system against one transparent side. Local and global traits that inform on soil resources acquisition strategies can be measured. The system can differentiate between varieties with somewhat contrasting root systems, important if rhizobia modify chickpea RSA. Nodulation was optimised in RBs to obtain a high number of nodules of big dimensions with high N-fixation capacity. Experiments in RBs, and other systems, evidenced that rhizobia that significantly improve plant N nutrition increase every organ biomass and result in a higher proportion of shoot allocated biomass since the plant has less need to forage for N. Superior strains provided more N and used the C invested in the symbiosis more effectively. Changes in roots traits due to rhizobia depend on demand for more-limiting soil resources once adequate N levels have been provided by the symbiont: When water and non-N nutrients are abundant, shallow and dense root systems will be observed; while deeper and extensive roots will develop when they are scarcer. Rhizobia also improve P nutrition, which might impact plant development and root distribution. Thus, rhizobia modulate RSA through improved N nutrition, and other benefits to the host, which decreases the plant´s need to forage for N.
JIMWLK evolution: from color charges to rapidity correlations
Creators: name: Iancu, E.
name: Triantafyllopoulos, D. N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study multi-particle production with rapidity correlations in high-energy p+A collisions. In the context of the Color Glass Condensate, the evolution for such correlations is governed by a generalization of the JIMWLK equation which evolves the strong nuclear fields both in the amplitude and in the complex conjugate one. We give the equivalent Langevin formulation, whose main ingredient is the color charge density linked to a projectile parton (a Wilson line).
description: 4 pages, 2 figures, based on talk given at Hard Probes 2013, 4 - 8 Nov 2013, Cape Town, South Africa