cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Scalable Querying Scheme for Memory-efficient Runtime Models with History
Creators: name: Sakizloglou, Lucas
name: Ghahremani, Sona
name: Barkowsky, Matthias
name: Giese, Holger
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Runtime models provide a snapshot of a system at runtime at a desired level of abstraction. Via a causal connection to the modeled system and by employing model-driven engineering techniques, runtime models support schemes for (runtime) adaptation where data from previous snapshots facilitates more informed decisions. Nevertheless, although runtime models and model-based adaptation techniques have been the focus of extensive research, schemes that treat the evolution of the model over time as a first-class citizen have only lately received attention. Consequently, there is a lack of sophisticated technology for such runtime models with history. We present a querying scheme where the integration of temporal requirements with incremental model queries enables scalable querying for runtime models with history. Moreover, our scheme provides for a memory-efficient storage of such models. By integrating these two features into an adaptation loop, we enable efficient history-aware self-adaptation via runtime models, of which we present an implementation.
description: 12 pages, 11 figures, ACM/IEEE 23rd International Conference on Model Driven Engineering Languages and Systems (MoDELS) 2020
A Local Method for Detecting Communities
Creators: name: Bagrow, Jim
name: Bollt, Erik
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We propose a novel method of community detection that is computationally inexpensive and possesses physical significance to a member of a social network. This method is unlike many divisive and agglomerative techniques and is local in the sense that a community can be detected within a network without requiring knowledge of the entire network. A global application of this method is also introduced. Several artificial and real-world networks, including the famous Zachary Karate club, are analyzed.
description: Submitted to Phys. Rev. E
Morphology of DOTAP and TT3 lipid nanoparticles with or without self-replicating RNA
Creators: name: Yingzhong Li
name: Irvine, Darrell J.
name: Weiss, Ron
Publisher: name: figshare
Year: 2020
Subjects: subject: 111204 Cancer Therapy (excl. Chemotherapy and Radiation Therapy)
subject: FOS: Clinical medicine

description: Shown are Source Data of Extended Data Fig.1d-1f of paper "Multifunctional oncolytic nanoparticles deliver self-replicating IL-12 RNA to eliminate established tumors and prime systemic immunity".
title: 'A Sentence of Last Resort': the order for lifelong restriction and the sentencing of dangerous offenders in Scotland
Creators: name: Ferguson, Elaine A.
Publisher: name: University of Glasgow
Year: 2021
Subjects: subject: orders for lifelong restriction, preventive detention, life sentences, risk-based sentencing, dangerous offenders.

description: This thesis is a critical analysis of the order for lifelong restriction (OLR). The OLR is a risk-based indeterminate sentence of imprisonment. It is imposed when the offender satisfies certain statutory risk criteria for the protection of the public. This thesis has four main aims: (1) to identify an appropriate theoretical basis for the imposition of preventive detention that is capable of supporting an ethically defensible model of preventive sentencing, and of serving as an analytical model for application to the OLR; (2) to give a detailed and critical account of the OLR’s operational framework; (3) to assess the extent to which the current statutory framework conforms to the requirements identified in the analytical model proposed in relation to the first aim; and (4) in light of this to propose amendments to the relevant legislation. The thesis concludes that preventive sentencing is best conceptualised as a punitive form of societal self-defence, the right of which is engaged when an offender exercises his autonomy such as to violate the rights of others in a way that threatens lasting physical or psychological harm. Since the need to consider preventive detention has arisen from fault on the offender’s part, it is morally permissible to require him to bear the burden of any uncertainty as to repeat offending. The derogation from the principle of desert-proportionality requires to be tempered with threat-proportionality. This means that the offences to which preventive sentences may apply must be restricted to serious offences against the person, or other offences which threaten physical harm to persons – this has the effect of excluding property offences that do not endanger others. Finally, it is concluded that, while the OLR is, in general terms, an ethically defensible model of preventive detention, some modifications to the procedural framework ought to be considered in order to restrict its scope.
The Viability of Creating Wetlands for the Sale of Carbon Offsets
Creators: name: Hansen, LeRoy T.
name: Hansen, LeRoy T.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Environmental Economics and Policy
subject: Land Economics/Use
subject: carbon markets
subject: carbon sequestration
subject: offsets
subject: wetland restoration

description: This analysis estimates the profitability of restoring wetlands for the sale of carbon offsets. Results indicate that about 7% to 12% of the recently restored grassed wetlands of the prairie pothole and high plains regions and 20% to 35% of the forested wetlands of the Mississippi alluvial valley and Gulf-Atlantic coastal flats regions could have carbon offset values that exceed the cost of restoring the wetland and the opportunity cost of moving the land out of agricultural production. Given the uncertainties, the analysis applies conservative estimates of wetlands’ costs, offset prices, and wetlands’ effects on greenhouse gases.
A new reaction for coordinated dinitrogen
Creators: name: MacKay, Bruce Alexander
Publisher: name: University of British Columbia
Year: 2009

description: The chemistry of the tantalum dinitrogen complex [NPN]Ta(μ-H)₂(μ-η¹:η²- N₂)Ta[NPN] (where [NPN] = (PhNSiMe₂CH₂)₂PPh) with main group hydride reagents is explored. The H-E bond of these reagents (E = B, Al, Si) undergoes addition across a Ta-N π bond, leading to formation of a new N-E bond and a new tantalum hydride. These complexes undergo spontaneous cleavage of the remaining N-N bond, coupled to reductive elimination of bridging hydride ligands as H₂. [the rest of the abstract can be found in the attached PDF file]
Spatial Patterns of Food Staple Production and Marketing in South East Africa: Implications for Trade Policy and Emergency Response
Creators: name: Haggblade, Steven
name: Longabaugh, Steven
name: Tschirley, David L.
name: Haggblade, Steven
name: Longabaugh, Steven
name: Tschirley, David L.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Food Security and Poverty
subject: International Relations/Trade
subject: Africa
subject: Food Security
subject: Production
subject: Marketing
subject: FOS: Economics and business

description: This paper aims to develop and test methods for spatial mapping of population, food production, consumption, and marketed quantities in Africa. As an initial, exploratory exercise, the paper examines the spatial pattern of population, food production, consumption, and trade in the three countries of Zambia, Malawi and Mozambique. This largely descriptive initial work will lay the empirical foundations for future analytical work modeling regional trade flows of food staples. By mapping population, food production, and trade flows, the paper aims to help policy makers better understand and anticipate spatial interactions in staple food markets. Through visual presentation of market information, these spatial mapping tools offer prospects for animating an ongoing dialogue among public and private stakeholders on key market flows, key bottlenecks, and key opportunities for improving food security in good and bad harvest years.
A comparison of mobility assistive devices for elderly and.pdf
Creators: name: Habib, Shehan
name: Arefin, Paroma
name: Aishawarya Arefin
name: Saidul Arefin
Publisher: name: figshare
Year: 2020
Subjects: subject: 90302 Biomechanical Engineering
subject: FOS: Medical engineering
subject: 90301 Biomaterials
subject: 99902 Engineering Instrumentation
subject: FOS: Other engineering and technologies

description: Older adults, people with chronic conditions, the disabled, and people with mobility impairments suffer from movement
difficulties and have the risk of falling. Mobility aids alleviate the impact of mobility limitations or improve
independence and reduce the burden of care and help people with mobility problems to move around enjoy greater
freedom and independence. These assistive devices are essential to facilitate more movement independence, and reduce
pain and boost self-confidence and happiness in regular life of the elderly. In this review paper, we have addressed the
context and need for mobility aids. The main objective of the research was to explore different options of mobility
assistive devices, and compare their advantages and drawbacks. The study found standard cane as the most popular
assistive device of all due to its using convenience. This study can help to find out the limitations of different mobility
aids and help to improve features to increase user convenience.
Hall effect in ferromagnetic nanomagnets: magnetic field dependence as an evidence of inverse spin Hall effect contribution
Creators: name: Zayets, Vadym
name: Mishchenko, Andrey S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We measure magnetic field dependence of the Hall angle in a metallic ferromagnetic nanomagnet with stable local magnetic moments where the adopted mechanisms of Hall effect predict linear plus a constant dependence on the external field originating from the ordinary and anomalous Hall effects, respectively. We suggest that the experimentally observed deviations from this dependence is caused by the inverse spin Hall effect (ISHE) and develop a phenomenological theory, which predicts a unique nonlinear dependence of the ISHE contribution on the external magnetic field. Perfect agreement between theory and experiment supports the considerable role of the ISHE in the Hall transport in ferromagnetic metals.
description: 5 pages, 5 figures
title: Spectral bandwidth enhancement in gallium nitride Superluminescent Light Emitting Diodes
Creators: name: Goldberg, Graham Robert
Publisher: name: University of Glasgow
Year: 2021
Subjects: subject: Gallium nitride, Superluminescent light emitting diodes, optical coherence tomography, bandwidth, resolution, multi-section

description: This thesis is concerned with the design and development of short wavelength, ~400nm, superluminescent light emitting diodes (SLEDs). The enhancement of spectral bandwidth through the use of multiple passive and active contacts allows the spectral bandwidth to be increased beyond that possible with a single active contact. Such devices may find application in biomedical imaging applications such as optical coherence tomography (OCT). Thus far limited research has been conducted into short wavelength devices for OCT due to immaturity of development of suitable materials and their associated narrow bandwidths. Prior to this work gallium nitride (GaN) SLEDs have been reported with bandwidths of ~5nm, which at 400nm offers an axial resolution in the region of 10µm. This thesis describes and explains the research conducted towards the objective of achieving broader bandwidth. Initially, an experimental setup capable of characterising shorter wavelength devices was constructed, and a comprehensive review of the literature and current state of the art is presented. An OCT setup was then constructed, allowing for direct measurement of device resolution and comparison to values obtained using both the point spread function and from theory. Non-contact metrology using a GaN SLED was then carried out for the first time. For a two contact SLED the role of bias conditions and their effect on the absorber section and device emission bandwidth was then examined, after which three section GaN SLEDs were developed, allowing for different current injection levels to be applied to the active regions. Optimal drive conditions for the two active contacts, along with a short-circuited absorber section, allowed a spectral bandwidth of ~20nm to be obtained. Device resolution was again analysed under the new conditions, yielding 3.3μm, and compared to the Rayleigh criterion. This offered a system resolution limit value. Once successfully developed, short wavelength GaN SLEDs with a broad bandwidth could sufficiently increase axial resolution to allow detailed imaging of the cornea and its respective layers, early detection of skin cancers, and imaging teeth in non-ionising dental applications. Future routes to developing even broader bandwidth devices, and hence higher resolution sources, are discussed.
A Critical Evaluation of the Capital Theory Approach to Sustainable Development
Creators: name: De Wit, M.P.
name: Blignaut, J.N.
name: De Wit, M.P.
name: Blignaut, J.N.
Publisher: name: Unknown
Year: 2000
Subjects: International Development

description: Irrigation farmers in the lower reaches of the Vaal and Riet Rivers are experiencing substantial yield reductions in certain crops and more profitable crops have been withdrawn from production, hypothesised, as a result of generally poor but especially fluctuating water quality. In this paper secondary data is used in a linear programming model to test this hypothesis by calculating the potential loss in farm level optimal returns. The model is static with a time frame of two production seasons. Linear crop-water quality production functions (Ayers & Westcot, 1983; adapted from Maas & Hoffmann, 1977) are used to calculate net returns for the eight most common crops grown. Results show optimal enterprise composition under various water quality situations. Leaching is justified financially and there is a strong motivation for a change in the current water pricing system. SALMOD (Salinity and Leaching Model for Optimal irrigation Development) is the Excel Solver model used to derive the preliminary results, but is currently being developed further in GAMS (General Algebraic Modelling System). Useful results have already been obtained on which this paper is based. The ultimate aim for SALMOD is a mathematical model using dynamic optimisation, simulation and risk modelling techniques to aid in whole farm and system level management decisions to ensure sustainable irrigation agriculture under stochastic river water quality conditions.
Solar neutrino probes of the muon anomalous magnetic moment in the gauged $U(1)_{L_μ-L_τ}$
Creators: name: Amaral, Dorian Warren Praia do
name: Cerdeno, David G.
name: Foldenauer, Patrick
name: Reid, Elliott
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Models of gauged $U(1)_{L_μ-L_τ}$ can provide a solution to the long-standing discrepancy between the theoretical prediction for the muon anomalous magnetic moment and its measured value. The extra contribution is due to a new light vector mediator, which also helps to alleviate an existing tension in the determination of the Hubble parameter. In this article, we explore ways to probe this solution via the scattering of solar neutrinos with electrons and nuclei in a range of experiments and considering high and low solar metallicity scenarios. In particular, we reevaluate Borexino constraints on neutrino-electron scattering, finding them to be more stringent than previously reported, and already excluding a part of the $(g-2)_μ$ explanation with mediator masses smaller than $2\times10^{-2}$ GeV. We then show that future direct dark matter detectors will be able to probe most of the remaining solution. Due to its large exposure, LUX-ZEPLIN will explore regions with mediator masses up to $5\times10^{-2}$ GeV and DARWIN will be able to extend the search beyond $10^{-1}$ GeV, thereby covering most of the area compatible with $(g-2)_μ$. For completeness, we have also computed the constraints derived from the recent XENON1T electron recoil search and from the CENNS-10 LAr detector, showing that none of them excludes new areas of the parameter space. Should the excess in the muon anomalous magnetic moment be confirmed, our work suggests that direct detection experiments could provide crucial information with which to test the $U(1)_{L_μ-L_τ}$ solution, complementary to efforts in neutrino experiments and accelerators.
description: 21 pages + appendices and references, 8 figures; v2: added references, updated description of loop-induced kinetic mixing suitable for low-energy processes; v3: matches published version
Supersymmetric Model of Spin-1/2 Fermions on a Chain
Creators: name: Santachiara, Raoul
name: Schoutens, Kareljan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In recent work, N=2 supersymmetry has been proposed as a tool for the analysis of itinerant, correlated fermions on a lattice. In this paper we extend these considerations to the case of lattice fermions with spin 1/2 . We introduce a model for correlated spin-1/2 fermions with a manifest N=4 supersymmetry, and analyze its properties. The supersymmetric ground states that we find represent holes in an anti-ferromagnetic background.
description: 15 pages, 10 eps figures
CHESS: an Innovative Concept for High-Resolution, Far-UV Spectroscopy
Creators: name: Hoadley, Keri
name: France, Kevin
name: Nell, Nicholas
name: Kane, Robert
name: Fleming, Brian
name: Youngblood, Allison
name: Beasley, Matthew
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The space ultraviolet (UV) is a critical astronomical observing window, where a multitude of atomic, ionic, and molecular signatures provide crucial insight into planetary, interstellar, stellar, intergalactic, and extragalactic objects. The next generation of large space telescopes require highly sensitive, moderate-to-high resolution UV spectrograph. However, sensitive observations in the UV are difficult, as UV optical performance and imaging efficiencies have lagged behind counterparts in the visible and infrared regimes. This has historically resulted in simple, low-bounce instruments to increase sensitivity. In this study, we present the design, fabrication, and calibration of a simple, high resolution, high throughput far-UV spectrograph - the Colorado High-resolution Echelle Stellar Spectrograph (CHESS). CHESS is a sounding rocket payload to demonstrate the instrument design for the next-generation UV space telescopes. We present tests and results on the performance of several state-of-the-art diffraction grating and detector technologies for far-UV astronomical applications that were flown aboard the first two iterations of CHESS. The CHESS spectrograph was used to study the atomic-to-molecular transitions within translucent cloud regions in the interstellar medium (ISM) through absorption spectroscopy. The first two flights looked at the sightlines towards alpha Virgo and epsilon Persei, and flight results are presented.
description: pre-print; accepted for publication in Experimental Astronomy; 44 pages, 14 figures
Découvrir les éditeurs de texte en Markdown, démonstration de Stylo
Creators: name: Meriç AKDOGAN
name: Cécile Arènes
name: Aurélien Moisan
Publisher: name: Zenodo
Year: 2024
Subjects: Stylo
markdown
éditeur de texte
édition
rédaction
text editor
editing
scientific publishing
publication scientifique

description: Formation de 2h

Introduction au langage Markdown (.md), la prise de note avec Obsidian et la démonstration de l'outil Stylo, éditeur de texte en ligne
Providing Authentic Long-term Archival Access to Complex Relational Data
Creators: name: Heuscher, Stephan
name: Jaermann, Stephan
name: Keller-Marxer, Peter
name: Moehle, Frank
Publisher: name: arXiv
Year: 2004
Subjects: subject: Digital Libraries (cs.DL)
subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: We discuss long-term preservation of and access to relational databases. The focus is on national archives and science data archives which have to ingest and integrate data from a broad spectrum of vendor-specific relational database management systems (RDBMS). Furthermore, we present our solution SIARD which analyzes and extracts data and data logic from almost any RDBMS. It enables, to a reasonable level of authenticity, complete detachment of databases from their vendor-specific environment. The user can add archival descriptive metadata according to a customizable schema. A SIARD database archive integrates data, data logic, technical metadata, and archival descriptive information in one archival information package, independent of any specific software and hardware, based upon plain text files and the standardized languages SQL and XML. For usage purposes, a SIARD archive can be reloaded into any current or future RDBMS which supports standard SQL. In addition, SIARD contains a client that enables 'on demand' reload of archives into a target RDBMS, and multi-user remote access for querying and browsing the data together with its technical and descriptive metadata in one graphical user interface.
description: 18 pages with 4 figures (color). Submitted to: European Space Agency Symposium "Ensuring Long-Term Preservation and Adding Value to Scientific and Technical Data", 5 - 7 October 2004, Frascati, Italy
Commonalities and differences in the neural representations of English, Portuguese, and Mandarin sentences: when knowledge of the brain-language mappings for two languages is better than one
Creators: name: Yang, Ying
name: Wang, Jing
name: Bailer, Cyntia
name: Cherkassky, Vladimir
name: Just, Marcel
Publisher: name: Carnegie Mellon University
Year: 2020
Subjects: Neuroscience

description: This study extended cross-language semantic decoding (based on a concept’s fMRI signature) to the decoding of sentences across three different languages (English, Portuguese and Mandarin). A classifier was trained on either the mapping between words and activation patterns in one language or the mappings in two languages (using an equivalent amount of training data), and then tested on its ability to decode the semantic content of a third language. The model trained on two languages was reliably more accurate than a classifier trained on one language for all three pairs of languages. This two-language advantage was selective to abstract concept domains such as social interactions and mental activity. Representational Similarity Analyses (RSA) of the inter-sentence neural similarities resulted in similar clustering of sentences in all the three languages, indicating a shared neural concept space among languages. These findings identify semantic domains that are common across these three languages versus those that are more language or culture-specific.
Découvrir les éditeurs de texte en Markdown
Creators: name: Meriç AKDOGAN
name: Cécile Arènes
name: Aurélien Moisan
Publisher: name: Zenodo
Year: 2025
Subjects: Stylo
markdown
éditeur de texte
édition
rédaction
text editor
editing
scientific publishing
publication scientifique

description: Formation de 1h 30

Introduction au langage Markdown (.md) et la prise de note avec Obsidian 

(la démonstration de l'outil Stylo, éditeur de texte en ligne [version ancienne])
ON THE ISSUE OF VAKHTANG GORGASALI’S FAMILY BELONGING AND SOME FACTS OF GEORGIAN CHOSROIDS’ HISTORY
Creators: name: Chkhartishvili, Mariam
Publisher: name: figshare
Year: 2021
Subjects: History

description: The aim of our paper is to establish some important facts of Georgian Chosroids’ history and through the light of these facts identify aristocratic family to which Georgian King Vakhtang Gorgasali belonged. In the scholarly literature the cessation of this royal dynasty is dated differently: according to some authors this happened already in the sixth century, according to others Chosroids were in power until ninth century. Based on reinterpretation of all available data I have come to following conclusions: the family of Georgian Chosroids extinguished for inability to be reproductive, some members of this family had no male heir, while others were childless for various reasons. The last Georgian Chosroid King was Archil (c.a. 410s-430s) who also was childless. In “KartlisTskhovreba” Archil’s successor the King Mirdat – the father of well-known Georgian King Vakhtang Gorgasali, is represented as Archil’s son; but actually he was Archil’s adopted heir. Thus, Mirdat was Chosroid on a ground of social contract between the royal dynasty and aristocratic family which I call house of Khidareli after their castle’s name. Mirdat’s biological father was King Varaz-Bakur who co-ruled with Archil. The research reveals close genealogical links between famous Georgian ascetic Peter the Iberian and great Georgian King Vakhtang Gorgasali: Peter and Vakhtang’s father were half-brothers. Thus, Peter and Vakhtang were uncle and nephew. These are but a few facts I have established in this paper. Alongside with them there are presented considerations on various topics in the main text and extended footnotes.
Neural representations of Abstract Concepts: Identifying Underlying Neurosemantic Dimensions
Creators: name: Vargas, Roberto
name: Just, Marcel
Publisher: name: Carnegie Mellon University
Year: 2020
Subjects: Neuroscience

description: The abstractness of concepts is sometimes defined indirectly as lacking concreteness; this view provides little insight into their cognitive or neural basis. Multivariate pattern analytic (MVPA) techniques applied to fMRI data were used to characterize the neural representations of 28 individual abstract concepts. A classifier trained on the concepts’ neural signatures reliably decoded their neural representations in an independent subset of data for each participant. There was considerable commonality of the neural representations across participants as indicated by accurate classification of each participant’s concepts based on the neural signatures obtained in other participants. Group-level factor analysis revealed 3 semantic dimensions underlying the 28 concepts, suggesting a brain-based ontology for this set of abstract concepts. The 3 dimensions corresponded to 1. the degree a concept was Verbally Represented; 2. whether a concept was External (or Internal) to the individual, and 3. whether the concept contained Social Content. Further exploration of the Verbal Representation dimension suggests that the degree a concept is verbally represented can be construed as a point on a continuum between language faculties and perceptual faculties. A predictive model, based on independent behavioral ratings of the 28 concepts along the 3 factor dimensions, provided converging evidence for the interpretations.
FEM-based simulation of continuous wear of CrAlN-coated tools
Creators: name: Breidenstein, Bernd
name: Bergmann, Benjamin
name: Beblein, Sascha
name: Grzeschik, Florian
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2022
Subjects: subject: Cutting
subject: FE-Simulation
subject: PVD-Coating
subject: Tool wear
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: The understanding of the correlation between the coating-specific properties of PVD-coated cutting tools, the thermomechanical loads on the cutting wedge and the resulting tool wear, is necessary to avoid costly iterative test series. To obtain this knowledge a hybrid approach based on experimental tests and FEM-based chip formation is used in this study. In this respect, in a first step, a suitable wear rate model is derived and parameterized on the basis of wear analogy tests and experimental machining investigations. This wear rate model is then coupled with the FEM-based chip formation simulation to predict continuous tool wear.
Mid-infrared imaging and modelling of the dust shell around post-AGB star HD 187885 (IRAS 19500-1709)
Creators: name: Clube, K. L.
name: Gledhill, T. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present 10 and 20 micron images of IRAS 19500-1709 taken with the mid-infrared camera, OSCIR, mounted on the Gemini North Telescope. An extended circumstellar envelope is detected, with the N band image indicating an elongation in a NE-SW direction. We use a dust radiation transport code to fit the spectral energy distribution from UV to sub-mm wavelengths, with a detached dust shell model. A good fit is achieved using dust composed of amorphous carbon, silicon carbide and magnesium sulphide. We derive estimates for the inner and outer radius, density and mass of the dust in the shell. The inner radius is not resolved in our OSCIR imaging, giving an upper limit of 0.4 arcsec. With this constraint, we conclude that IRAS 19500-1709 must be at least 4 kpc away in order to have the minimum luminosity consistent with a post-AGB status.
description: 5 pages, 2 figures, accepted for publication in MNRAS
Do populist parties in government produce unconstitutional policies? Evidence from Austria, 1980–2021
Creators: name: König, Jasmin Sarah
name: Swalve, Tilko
Publisher: name: Oxford : Wiley-Blackwell
Year: 2022
Subjects: subject: constitutions
subject: courts
subject: judicial review
subject: policies
subject: populism
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::320 | Politik

description: In a rising number of countries, populist parties participate in coalition governments. While there exists a consensus that populism is incompatible with core tenets of liberal democracy on a conceptual level, we know much less about whether or not the participation of populist parties in government constitutes a threat to liberal democracy in practice. We study the impact of populist parties in coalition governments using a novel dataset of more than 2000 laws that were under review at the Austrian Constitutional Court between 1980 and 2021. We provide evidence that the court did not find laws passed by governments that included a populist party unconstitutional more often than those passed by non-populist governments. Our findings indicate that the Austrian Freedom Party did moderate its policy while in office. The results imply that it is necessary to distinguish policy positions in party manifestos and party rhetoric from policies actually implemented by governments.
Editer en ligne avec Stylo
Creators: name: AKDOGAN, Meriç
name: Arènes, Cécile
name: Moisan, Aurélien
Publisher: name: Zenodo
Year: 2023
Subjects: Stylo
markdown
éditeur de texte
édition
rédaction
text editor
editing
scientific publishing
publication scientifique

description: Formation de 1h Introduction au langage markdown et la démonstration de l'outil Stylo, éditeur de texte en ligne
Data-driven distributed MPC of dynamically coupled linear systems
Creators: name: Kohler, Matthias
name: Berberich, Julian
name: Müller, Matthias A.
name: Allgower, Frank
Publisher: name: Frankfurt ; München [u.a.] : Elsevier
Year: 2022
Subjects: subject: Data-based control
subject: distributed control
subject: large-scale systems
subject: linear systems
subject: predictive control
subject: Dewey Decimal Classification::600 | Technik

description: In this paper, we present a data-driven distributed model predictive control (MPC) scheme to stabilise the origin of dynamically coupled discrete-time linear systems subject to decoupled input constraints. The local optimisation problems solved by the subsystems rely on a distributed adaptation of the Fundamental Lemma by Willems et al., allowing to parametrise system trajectories using only measured input-output data without explicit model knowledge. For the local predictions, the subsystems rely on communicated assumed trajectories of neighbours. Each subsystem guarantees a small deviation from these trajectories via a consistency constraint. We provide a theoretical analysis of the resulting non-iterative distributed MPC scheme, including proofs of recursive feasibility and (practical) stability. Finally, the approach is successfully applied to a numerical example.
Particle fluctuations in systems with Bose-Einstein condensate
Creators: name: Yukalov, V. I.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Particle fluctuations in systems, exhibiting Bose-Einstein condensation, are reviewed in order to clarify the basic points that attract high interest and often confront misunderstanding. It is explained that the so-called ``grand canonical catastrophe", claiming the occurrence of catastrophic particle fluctuations in the condensed phase, treated by grand canonical ensemble, does not exist. What exists is the incorrect use of the grand canonical ensemble, where gauge symmetry is not broken, while the correct description of the condensed phase necessarily requires gauge symmetry breaking. The ideal Bose gas has no catastrophic condensate fluctuations, and moreover there are no condensate fluctuations at all, as soon as gauge symmetry is broken. However it does have anomalous fluctuations of uncondensed particles, which implies its instability. For interacting particles, there are no condensate fluctuations, as soon as gauge symmetry is broken, and anomalous fluctuations of uncondensed particles, when correctly calculated, do not appear. Particle fluctuations in the systems of trapped atoms are discussed. Canonical ensemble and grand canonical ensemble with broken gauge symmetry are equivalent with respect to the number of particle scaling.
description: review, 39 pages
Data related to article"Early Parkinsonism in a Senegalese girl with Lafora disease"
Creators: name: Castellotti, Barbara
name: Gellera, Cinzia
Publisher: name: Zenodo
Year: 2021
Subjects: Lafora disease
Progressive myoclonus epilepsy
Parkinsonism
NHLRC1 gene

description: We report the atypical presentation of Lafora disease in a Senegalese girl carrying the homozygous variant, c.560A>C, in the NHLRC1 gene. At 13 years, the patient developed myoclonic and visual seizures, progressive psychomotor slowing, and cognitive decline
Energy scales in a stabilized brane world
Creators: name: Boos, Edward E.
name: Mikhailov, Yuri S.
name: Smolyakov, Mikhail N.
name: Volobuev, Igor P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Brane world gravity looks different for observers on positive and negative tension branes. First we consider the well-known RS1 model with two branes embedded into the AdS_5 space-time and recall the results on the relations between the energy scales for an observer on the negative tension brane, which is supposed to be "our" brane. Then from the point of view of this observer we study energy scales and masses for the radion and graviton excitations in a stabilized brane world model. We argue that there may be several possibilities leading to scales of the order 1-10 TeV or even less for new physics effects on our brane. In particular, an interesting scenario can arise in the case of a "symmetric" brane world with a nontrivial warp factor in the bulk, which however takes equal values on both branes.
description: 15 pages, corrected typos, enlarged content
WIYN Open Cluster Study LXXIX. M48 (NGC 2548) I. Radial Velocities, Rotational Velocities, and Metallicities of Stars in the Open Cluster M48 (NGC 2548)
Creators: name: Sun, Qinghui
name: Deliyannis, Constantine P.
name: Steinhauer, Aaron
name: Twarog, Bruce A.
name: Anthony-Twarog, Barbara J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: WIYN/Hydra spectra (R $\sim$ 13,500, signal-to-noise pixel$^{-1}$ = 50-1000) of a 400 $\unicode{x212B}$ region around Li 6708 $\unicode{x212B}$ are used to determine radial and rotational velocities for 287 photometrically selected candidate members of the open cluster M48. The sample ranges from turnoff A stars to late-K dwarfs and eight giants. We combine our $V_{\rm{RAD}}$ measurements and power spectrum analysis with parallax and proper motion data from Gaia DR2 to evaluate membership and multiplicity. We classify 152 stars as single cluster members, 11 as binary members, 16 as members of uncertain multiplicity, 56 as single nonmembers, 28 as single "likely" nonmembers, two as single "likely" members, one as a binary "likely" member, five as binary nonmembers, 10 as "likely" members of uncertain multiplicity, three as nonmembers of uncertain multiplicity, and three as "likely" nonmembers of uncertain multiplicity. From a subsample of 95 single members, we derive $V_{\rm{RAD}}$ = 8.512 $\pm$ 0.087 km s$^{-1}$ ($σ_μ$, and $σ$ = 0.848 km s$^{-1}$). Using 16 isolated Fe I lines for a subsample of 99 single members (that have $σ_{T_{\rm{eff}}}$ $
description: 17 pages, 11 figures, accepted in the Astronomical Journal
Biologically relevant metal complexes with mixed O, S donor ligands
Creators: name: Monga, Vishakha
Publisher: name: University of British Columbia
Year: 2009

description: Thio analogues of two 3-hydroxy-4-pyrones (Hma, Hema) and two 3-hydroxy-4- pyridinones (Hmpp, Hdpp) have been synthesized as a new class of ligand precursors. Reacting 3-hydroxy-4-pyrones with P₂ S₅ led to the formation of the respective 3- hydroxy-4-pyranthiones (Htma, Hetma) in reasonable yields. One of these pyranthiones, thiomaltol (Htma), was further reacted with aqueous NH₄OH and MeNH₂ to yield 3- hydroxy-4-pyridinethiones, Hmppt and Hdppt, respectively. During the synthesis of the 3-hydroxy-4-pyridinethiones, their dimeric forms Hmppt-dimer and Hdppt-dimer were also isolated and characterized. Solution studies of the monomeric compounds established that these thio compounds have lower pKa values than the corresponding oxygen analogues, as expected. X-ray crystallographic analyses of Htma and Hetma confirmed that only the carbonyl oxygen (C=0) had been substituted with a sulfur atom and C=S bond lengths in the resulting molecules are longer than the C=0 bond lengths in their synthetic precursors. X-ray crystallographic analysis of Hdppt-dimer demonstrated the presence of a disulfide bond in the dimeric organic compounds. The four monomeric ligand precursors were complexed with vanadium to yield eight complexes: four oxovanadium(IV) and four vanadium(III) complexes. Solution studies (potentiometric and spectrophotometric) of the four oxovanadium(IV) compounds indicated the formation of reasonably stable complexes with (VO)L₂ and (VO)L₂(OH) as the dominant species at physiological pH. X-ray crystallographic analysis demonstrated the presence of cis and trans isomers of VO(tma)₂. For both isomers, the two ligands are in the equatorial plane with the V=0 bond perpendicular to the ligands, forming a square pyramidal structure. Reaction of the four monomeric ligand precursors with Ga³⁺and In³⁺ ions yielded new tris(bidentate ligand) complexes. X-ray quality crystals of the/ac-isomer of Ga(tma)₃ were also obtained; two of the ligated S atoms were found in a cis configuration with respect to each other with the third sulfur atom and one of the oxygen atoms occupying the perpendicular axis. New complexes with a range of lanthanides (Ln³⁺) were also synthesized with the two pyranthiones, Htma and Hetma. The synthesis reactions yielded complexes of the type LnL₃•xH₂0 and LnL₂(OH) •xH₂0, supported by elemental analysis and spectroscopic evidence such as mass spectral data and IR and NMR spectra.
Evidence for Abiotic Dimethyl Sulfide in Cometary Matter
Creators: name: Hänni, Nora
name: Altwegg, Kathrin
name: Combi, Michael
name: Fuselier, Stephen A.
name: De Keyser, Johan
name: Ligterink, Niels F. W.
name: Rubin, Martin
name: Wampfler, Susanne F.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Technological progress related to astronomical observatories such as the recently launched James Webb Space Telescope (JWST) allows searching for signs of life beyond our Solar System, namely in the form of unambiguous biosignature gases in exoplanetary atmospheres. The tentative assignment of a $1-2.4σ$ spectral feature observed with JWST in the atmosphere of exoplanet K2-18b to the biosignature gas dimethyl sulfide (DMS; sum formula C$_2$H$_6$S) raised hopes that, although controversial, a second genesis had been found. Terrestrial atmospheric DMS is exclusively stemming from marine biological activity and no natural abiotic source has been identified - neither on Earth nor in space. Therefore, DMS is considered a robust biosignature. Since comets possess a pristine inventory of complex organic molecules of abiotic origin, we have searched high-resolution mass spectra collected at comet 67P/Churyumov-Gerasimenko, target of the European Space Agency's Rosetta mission, for the signatures of DMS. Previous work reported the presence of a C2H6S signal when the comet was near its equinox but distinction of DMS from its structural isomer ethanethiol remained elusive. Here we reassess these and evaluate additional data. Based on differences in the electron ionization induced fragmentation pattern of the two isomers, we show that DMS is significantly better compatible with the observations. Deviations between expected and observed signal intensities for DMS are $<1σ$, while for ethanethiol they are $2-4σ$. The local abundance of DMS relative to methanol deduced from these data is (0.13$\pm$0.04)%. Our results provide the first evidence for the existence of an abiotic synthetic pathway to DMS in pristine cometary matter and hence motivate more detailed studies of the sulfur chemistry in such matter and its analogs. [...]
description: 11 pages, 4 figures
TrES-1: The Transiting Planet of a Bright K0V Star
Creators: name: Alonso, Roi
name: Brown, Timothy M.
name: Torres, Guillermo
name: Latham, David W.
name: Sozzetti, Alessandro
name: Mandushev, Georgi
name: Belmonte, Juan A.
name: Charbonneau, David
name: Deeg, Hans J.
name: Dunham, Edward W.
name: O'Donovan, Francis T.
name: Stefanik, Robert P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the detection of a transiting Jupiter-sized planet orbiting a relatively bright (V=11.79) K0V star. We detected the transit light-curve signature in the course of the TrES multi-site transiting planet survey, and confirmed the planetary nature of the companion via multicolor photometry and precise radial velocity measurements. We designate the planet TrES-1; its inferred mass is 0.75 +/- 0.07 Jupiter masses, its radius is 1.08 (+0.18/-0.04) Jupiter radii, and its orbital period is 3.030065 +/- 0.000008 days. This planet has an orbital period similar to that of HD 209458b, but about twice as long as those of the OGLE transiting planets. Its mass is indistinguishable from that of HD 209458b, but its radius is significantly smaller and fits the theoretical models without the need for an additional source of heat deep in the atmosphere, as has been invoked by some investigators for HD 209458b.
description: 15 pages, 3 figures, 2 tables. To be published in Astrophysical Journal Letters. Ascii data in http://www.hao.ucar.edu/public/research/stare/data/TrES1.asc
Force-free magnetosphere attractors for near-horizon extreme and near-extreme limits of Kerr black hole
Creators: name: Camilloni, F.
name: Grignani, G.
name: Harmark, T.
name: Oliveri, R.
name: Orselli, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a new approach to find magnetically-dominated force-free magnetospheres around highly spinning black holes, relevant for models of astrophysical jets. Employing the near-horizon extreme Kerr (NHEK) limit of the Kerr black hole, any stationary, axisymmetric and regular force-free magnetosphere reduces to the same attractor solution in the NHEK limit with null electromagnetic field strength. We use this attractor solution as the universal starting point for perturbing away from the NHEK region in the extreme Kerr spacetime. We demonstrate that by going to second order in perturbation theory, it is possible to find magnetically dominated magnetospheres around the extreme Kerr black hole. Furthermore, we consider the near-horizon near-extreme Kerr (near-NHEK) limit that provides access to a different regime of highly spinning black holes. Also in this case we find a novel force-free attractor, which can be used as the universal starting point for a perturbative construction of force-free magnetospheres. Finally, we discuss the relation between the NHEK and near-NHEK attractors.
description: v1: 5 pages, 1 figure; v2: 7 pages, 2 figures, matches published version
Quantum complementarity of microcavity polaritons
Creators: name: Savasta, Salvatore
name: Di Stefano, Omar
name: Savona, Vincenzo
name: Langbein, Wolfgang
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present an experiment that probes polariton quantum correlations by exploiting quantum complementarity. Specifically, we find that polaritons in two distinct idler-modes interfere if and only if they share the same signal-mode so that "which-way" information cannot be gathered. The experimental results prove the existence of polariton pair correlations that store the "which-way" information. This interpretation is confirmed by a theoretical analysis of the measured interference visibility in terms of quantum Langevin equations.
Breeding Quality Protein Maize (QPM): Protocols for Developing QPM Cultivars
Creators: name: Vivek, B.S.
name: Krivanek, A.F.
name: Palacios-Rojas, N.
name: Twumasi-Afriyie, S.
name: Diallo, Alpha O.
name: Vivek, B.S.
name: Krivanek, A.F.
name: Palacios-Rojas, N.
name: Twumasi-Afriyie, S.
name: Diallo, Alpha O.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Crop Production/Industries
subject: Zea mays
subject: Plant breeding
subject: Breeding methods
subject: Genetic resources
subject: Protein quality
subject: Protein content
subject: Application methods
subject: Lysine
subject: Tryptophan
subject: Food composition

description: This manual is intended for maize breeders who would like to start developing quality protein maize (QPM) cultivars. It is a compilation and consolidation of several breeding protocols successfully used at CIMMYT over two decades of QPM development and breeding. A brief background and the basic theory of QPM genetics are explained, leading up to detailed methods and procedures of QPM development.
Code to produce figures for the manuscript "Ambiguity of early warning signals for climate tipping points".
Creators: name: Skiba, Vanessa
Publisher: name: Zenodo
Year: 2025

description: This repository provides data and code for reproducing figures of the manuscript:

*Rietkerk, M., *Skiba, V., Weinans, E., Hébert, R. and Laepple, T. Ambiguity of early warning signals for climate tipping points.

*Shared co-first authors and corresponding authors