cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Combining subspace codes
Creators: name: Cossidente, Antonio
name: Kurz, Sascha
name: Marino, Giuseppe
name: Pavese, Francesco
Publisher: name: arXiv
Year: 2019
Subjects: subject: Combinatorics (math.CO)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: Primary 51E20, Secondary 05B25, 94B65

description: In the context of constant--dimension subspace codes, an important problem is to determine the largest possible size $A_q(n, d; k)$ of codes whose codewords are $k$-subspaces of $\mathbb{F}_q^n$ with minimum subspace distance $d$. Here in order to obtain improved constructions, we investigate several approaches to combine subspace codes. This allow us to present improvements on the lower bounds for constant--dimension subspace codes for many parameters, including $A_q(10, 4; 5)$, $A_q(12, 4; 4)$, $A_q(12, 6, 6)$ and $A_q(16, 4; 4)$.
description: 17 pages; construction for A_(10,4;5) was flawed
RURAL MARKETS IN BANGLADESH AND THE RURAL MAINTENANCE PROGRAMME
Creators: name: Uddin, M. Mosleh
name: Kabir, M.
name: Alam, M. Mostafa
name: Boss, G. K.
name: Uddin, M. Mosleh
name: Kabir, M.
name: Alam, M. Mostafa
name: Boss, G. K.
Publisher: name: Unknown
Year: 1989
Subjects: Research and Development/Tech Change/Emerging Technologies

description: This study describes the Impact of rural maintenance programme on rural markets in Bangladesh. Rural Maintenance programme (RMP) is a year-round programme for maintenance ol 16 miles earthen roads In each selected union. The programme is run by crews consisting of 15 destitute women. The findings suggest that better road maintenance by RMP in the programme areas has resulted in more traffic f low through which the markets in the programme areas have been expanded. Better supply of services such as tea stalls and repair services for bicycle/rickshaw within the market were observed in programme area then in the control areas.
Keysercypria obtusa Karanovic 2011
Creators: name: Karanovic, Ivana
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Ostracoda
Podocopida
Candonidae
Keysercypria
Keysercypria obtusa

description: Keysercypria obtusa (Klie, 1940)
(Figure 17)
 1940 Cypria obtusa Klie: p. 225, Figs 17–19.
 Redescription. Male: Carapace ovoid in lateral view, with dorsal margin almost evenly rounded. LV overlapping RV on all free margins. RV without marginal tubercles along free margin (Figure 17F–H).
Prehensile palps (Figures 17B, C): Right palp (Figure 17C) much more robust than left one (Figure 17B), finger with a triangular extension on dorsal margin and one terminal seta broad and well sclerified. Left palp with finger which is not so curved and long and one terminal seta distinguishable on the slide.
T2 (Figure 17E): Basal seta missing. Setae “e” and “f” reaching distal end of following segments. Seta “h3” on terminal segment reaching half L of terminal claw. Terminal claw poorly serrated and as long as three distal segments combined. T2 covered with long and dense pseudochaetae, all endopodal setae plumose.
T3 (Figure 17D): Basal segment without d2 seta, while seta d1 short. Setae “e”, “f” and “g” all being very short. Terminal segment almost as wide as long, L ratios between three distal setae (of which h1 and h2 being almost claw-like) 1: 2.2: 5.1.
Hemipenis (Figure 17A): Lobe “a” distally rounded, lobe “b” pointed, and much lower than lobe “a”. Internal structure impossible to be observed in the original dissection.
Zenker organ: Consisting of seven whorls of spines.
 Remarks and affinities. Keysercypria obtusa (Klie, 1940) is closely related to K. pellucida (Sars, 1901) and K. circinata (Würdig & Pinto, 1993), and in all three species the RV lacks marginal tubercles. In fact, the lack of the marginal tubercles prompted Klie (1940) to place Keysercypria obtusa into the genus Cypria Zenker, 1854. However, this North Brazilian species is more closely related to other species of the genus Keysercypria gen. nov. than to Cypria because it has a typical morphology of the hemipenis and chaetotaxy of T2 and T3. Beside the lack of the tubercles on the RV, K. obtusa differs from other species of the genus where tubercles are present, by the appearance of the prehensile palps and/or length of “h3” seta on the T2.
description: Published as part of Karanovic, Ivana, 2011, On the recent Cyclocypridinae (Podocopida, Candonidae) with description of two new genera and one new species 2820, pp. 1-61 in Zootaxa 2820 (1) on pages 33-35, DOI: 10.11646/zootaxa.2820.1.1, http://zenodo.org/record/5288957
Naked singularities and black hole Killing horizons
Creators: name: Pugliese, Daniela
name: Quevedo, Hernando
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this chapter, we study special photon orbits defined by means of Killing vectors and present a framework based on the properties of such null orbits. For concreteness, we restrict ourselves to the case of axially symmetric spacetimes describing either black holes with Killing horizons or naked singularities. The null-orbits framework is then applied to analyze properties of naked singularities and concepts of black hole thermodynamics.
description: 37 pages, 7 figures multi-panel
XMM-Newton observations of the polars EV UMa, RX J1002-19 and RX J1007-20
Creators: name: Ramsay, Gavin
name: Cropper, Mark
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present XMM-Newton data of three strongly magnetic cataclysmic variables (polars) EV UMa, RX J1002-19 and RX J1007-20. These include the polar with the shortest orbital period (EV UMa) and the polar with one of the highest magnetic field strengths (RX J1007-20). They exhibit a range of X-ray spectral characteristics which are consistent with their known magnetic field strength. We find that two of the systems show evidence for an absorption dip in soft X-rays. Their profiles are well defined, implying that the stream is highly collimated. We determine the mass transfer rate for the two systems with known distances. We determine that the mass of the white dwarf in EV UMa and RX J1007-20 is ~1Msun while in RX J1002-19 it is closer to ~0.5Msun.
description: Accepted for publication in MNRAS, 9 pages
Catastrophic risk and risk management, what do we know about livestock epidemics? State of the art and prospects
Creators: name: Rault, Arnaud
name: Krebs, Stéphane
name: Rault, Arnaud
name: Krebs, Stéphane
Publisher: name: Unknown
Year: 2011
Subjects: subject: Livestock Production/Industries
subject: Risk and Uncertainty
subject: animal epidemic outbreaks catastrophic risk risk management

description: The economic consequences of livestock epidemics have been long studied for purposes of estimating the costs of preventive and curative veterinary measures. In this paper, we show that this catastrophic risk may have wide market consequences, and that the risk management systems are quite limited to compensate long term impacts in the European context of growing trade. Through a detailed literature review, we present the main developments of the economic research aiming at highlighting the economic consequences of animal epidemics such as Foot and Mouth Disease. We acknowledge that a very few studies have focused on the economic dynamics and on the long-run effects occurring after an epidemic disease outbreak. We discuss the relevance of a dynamic approach to reveal that the de-structuring of livestock markets affects the production dynamics as well as the whole agricultural sector. Financial implications and market constraints remain poorly studied in the livestock epidemics literature. We emphasize the growing interest of a dynamic Computable General Equilibrium approach to reveal the overall effects of epidemic outbreaks on the whole economy. This innovative research raises important challenges for the assessment and implementation of risk management policies.
A structural estimation of French farmers’ risk preferences: an artefactual field experiment
Creators: name: Bougherara, Douadia
name: Gassmann, Xavier
name: Piet, Laurent
name: Bougherara, Douadia
name: Gassmann, Xavier
name: Piet, Laurent
Publisher: name: Unknown
Year: 2011
Subjects: subject: Risk and Uncertainty
subject: risk attitudes field experiment farmer

description: We designed an artefactual field experiment involving real payments to elicit French farmers’ risk preferences. We test for two descriptions of farmers’ behaviour: expected utility and cumulative prospect theory and for preference stability across context (price risk and yield risk). We use multiple price lists where farmers make series of choices between two lotteries with varying probabilities and outcomes in the gain and loss domains. We estimate parameters describing farmers’ risk preferences derived from structural models. We find farmers are slightly risk averse in the expected utility framework. In the cumulative prospect theory frame, we find farmers display either loss aversion or probability weighting, tending to overweight small probabilities and to underweight high probabilities. We also estimate the reference point and find it not significantly different from zero. Cumulative prospect theory is a better description of farmers’ risk attitudes. We find risk preferences vary across context.
Fortran... ok, and what's next?
Creators: name: Magnin, Vincent
name: Alves, José
name: Arnoud, Antoine
name: Markus, Arjen
name: Marzino, Michele Esposito
Publisher: name: arXiv
Year: 2024
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Modern Fortran is a standardized language that includes object-oriented and parallel programming paradigms. The Fortran-lang community, created at the end of 2019, is actively working to modernize its ecosystem. New compilers are under development. And the fourth Fortran standard of the 21st century is due to be published in autumn 2023.
description: This article is the official English translation of the French article published in Bulletin de la Soci{\'e}t{\'e} Informatique de France (November 2023)
Price volatility, market regulation and risk management: challenges for the future of the CAP
Creators: name: Chatellier, Vincent
name: Chatellier, Vincent
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural Finance
subject: Risk and Uncertainty
subject: CAP agricultural market price volatility risk regulation instruments

description: This article provides an analysis of the European Commission’s proposals (18 Novembre 2010) regarding the next CAP reform. It proposes a reflection centered on the volatility of agricultural prices, the market regulation mechanisms and the risk management tools (the important question of direct payment to farmers is not included here). The first section deals with the factors underlying the volatility of agricultural prices, the effects of these factors on an international scale and ways of better managing volatility through enhanced international coordination of policies associated with agriculture. The second concerns the European tools that could be mobilised to accompany and support the envisaged strategies on a more global scale. Arguments are then developed around the following topics: customs duties, export refunds, safety nets, futures markets, fiscal policies and income stabilisation tools.
Geochemical datasets and Matlab codes for the study on the relationship between deep earth processes and the Jehol Biota
Creators: name: Ma, Chao
Publisher: name: figshare
Year: 2021
Subjects: subject: 40399 Geology not elsewhere classified
subject: FOS: Earth and related environmental sciences

description: Geochemical and radiogenic isotope data of volcanic rocks from the North China, Brazilian, Indian and Siberian craton, as well as MATLAB codes are used to examine the links between deep geological processes and the terrestrial biosphere.
Reinforcement learning based demand charge minimization using energy storage
Creators: name: Weber, Lucas
name: Bušić, Ana
name: Zhu, Jiamin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Utilities have introduced demand charges to encourage customers to reduce their demand peaks, since a high peak may cause very high costs for both the utility and the consumer. We herein study the bill minimization problem for customers equipped with an energy storage device and a self-owned renewable energy production. A model-free reinforcement learning algorithm is carefully designed to reduce both the energy charge and the demand charge of the consumer. The proposed algorithm does not need forecasting models for the energy demand and the renewable energy production. The resulting controller can be used online, and progressively improved with newly gathered data. The algorithm is validated on real data from an office building of IFPEN Solaize site. Numerical results show that our algorithm can reduce electricity bills with both daily and monthly demand charges.
Morse sequences
Creators: name: Bertrand, Gilles
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We introduce the notion of a Morse sequence, which provides a simple and effective approach to discrete Morse theory. A Morse sequence is a sequence composed solely of two elementary operations, that is, expansions (the inverse of a collapse), and fillings (the inverse of a perforation). We show that a Morse sequence may be seen as an alternative way to represent the gradient vector field of an arbitrary discrete Morse function. We also show that it is possible, in a straightforward manner, to make a link between Morse sequences and different kinds of Morse functions. At last, we introduce maximal Morse sequences, which formalize two basic schemes for building a Morse sequence from an arbitrary simplicial complex.
Pseudogap effects on the charge dynamics in the underdoped copper oxide materials
Creators: name: Feng, Shiping
name: Yuan, Feng
Publisher: name: arXiv
Year: 2002
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Within the t-J model, the charge dynamics of copper oxide materials in the underdoped regime is studied based on the fermion-spin theory. It is shown that both in-plane charge dynamics and c-axis charge dynamics are mainly governed by the scattering from the in-plane fluctuation, which would be suppressed when the holon pseudogap opens at low temperatures, leading to the temperature linear to the nonlinear range in the in-plane resistivity and crossovers to the semiconducting-like range in the c-axis resistivity.
description: 6 pages, PDF file, three figures are included
The data used for the study on the relationship between Yanshan movement and the Yanliao Biota
Creators: name: Ma, Chao
Publisher: name: figshare
Year: 2021
Subjects: subject: 49999 Earth Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 40299 Geochemistry not elsewhere classified
subject: 40304 Igneous and Metamorphic Petrology
subject: 40308 Palaeontology (incl. Palynology)

description: This repository contains one dataset and several MATLAB codes used for the study on the relationship between Yanshan movement and the Yanliao Biota.
Battery-Less LoRaWAN Communications using Energy Harvesting: Modeling and Characterization
Creators: name: Delgado, Carmen
name: Sanz, José María
name: Blondia, Chris
name: Famaey, Jeroen
Publisher: name: arXiv
Year: 2024
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Billions of IoT devices are deployed worldwide and batteries are their main power source. However, these batteries are bulky, short-lived and full of hazardous chemicals that damage our environment. Relying on batteries is not a sustainable solution for the future IoT. As an alternative, battery-less devices run on long-lived capacitors charged using energy harvesters. The small energy storage capacity of capacitors results in an intermittent on-off behaviour. LoRaWAN is a popular Low Power Wide Area Network technology used in many IoT devices and can be used in these new scenarios. In this work, we present a Markov model to characterize the performance of battery-less LoRaWAN devices for uplink and downlink transmissions and we evaluate their performance in terms of the parameters that define the model (i.e., device configuration, application behaviour and environmental conditions). Results show that LoRaWAN battery-less communications are feasible if choosing the proper configuration (i.e., capacitor size, turn-on voltage threshold) for different application behaviour (i.e., transmission interval, UL/DL packet sizes) and environmental conditions (i.e., energy harvesting rate). Since downlink in the second reception window highly affects the performance, only small DL packet sizes should be considered for these devices. Besides, a 47 mF capacitor can support 1 Byte $SF7$ transmissions every 60 s at an energy harvesting rate of 1 mW. However, if no DL is expected, a 4.7 mF capacitor could support 1 Byte $SF7$ transmissions every 9~s.
description: arXiv admin note: text overlap with arXiv:2402.06290
Nursing Student-Led Health Education for Sixth Graders on Chicago’s South Side
Creators: name: Singer, Randi
name: Crooks, Natasha (she/her/hers)
name: Gelbort, Jules
name: Neely, Jennifer
name: Lenon, Pia
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: Introduction: Partnerships between schools of nursing and grade schools providing health education to youth are shown to be advantageous. Using Community Based Service Learning for nursing students at a middle school in Chicago, IL, we were able to improve health education for adolescents in an underserved area. Objective: This project aimed to improve and standardize existing health education efforts for sixth graders (n = 30) at a middle school by developing an evidence-based health education curriculum with nursing students. Methods: This was a descriptive study with a pretest and posttest evaluation addressing the physical, emotional, and sexual health knowledge, attitudes and behaviors of participating sixth graders. Results: Findings suggest service-learning partnerships may benefit middle schoolers and nursing students. Conclusion: Implementing a culturally relevant health curriculum using a service-learning framework increased sexual, physical, and emotional health knowledge in Latinx sixth graders and enhanced nursing student learning in a way not possible through classroom and clinical practicum experiences alone.
Extreme Spin Squeezing from Deep Reinforcement Learning
Creators: name: Chen, Feng
name: Chen, Jun-Jie
name: Wu, Ling-Na
name: Liu, Yong-Chun
name: You, Li
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Spin squeezing (SS) is a recognized resource for realizing measurement precision beyond the standard quantum limit $\propto 1/\sqrt{N}$. The rudimentary one-axis twisting (OAT) interaction can facilitate SS and has been realized in diverse experiments, but it cannot achieve extreme SS for precision at Heisenberg limit $\propto 1/{N}$. Aided by deep reinforcement learning (DRL), we discover size-independent universal rules for realizing nearly extreme SS with OAT interaction using merely a handful of rotation pulses. More specifically, only 6 pairs of pulses are required for up to $10^4$ particles, while the time taken to reach extreme SS remains on the same order of the optimal OAT squeezing time, which makes our scheme viable for experiments that reported OAT squeezing. This study highlights the potential of DRL for controlled quantum dynamics.
description: 5 pages, 4 figures
Analysing farmers' preferences for collaborative arrangements: an experimental approach
Creators: name: Feil, Jan-Henning
name: Anastassiadis, Friederike
name: Mußhoff, Oliver
name: Kasten, Philipp
name: Feil, Jan-Henning
name: Anastassiadis, Friederike
name: Mußhoff, Oliver
name: Kasten, Philipp
Publisher: name: Unknown
Year: 2015
Subjects: subject: Farm Management
subject: Institutional and Behavioral Economics
subject: Farm-level collaborative arrangement
subject: discrete choice experiment
subject: generalized multinominal logit

description: This paper analyses farmers' preferences for farm-level collaborative arrangements (CAs) based upon a discrete choice experiment conducted in Germany. A mixed logit and a generalized multinominal logit model are used to determine whether farmers' decisions to establish a CA with a potential partner are influenced by non-monetary attributes like the age of the partner, the years of acquaintance with the partner or the production activities of the partner. Moreover, a monetary attribute is included to calculate the average individual's willingness-to-pay or 'implicit price' for a change in each of the non-monetary attributes. The results show that farmers' preferences for CAs increase, the closer their age is, the more years of (positive) acquaintance between them exist and the more similar their production activities are.
Observing the loss and revival of long-range phase coherence through disorder quenches
Creators: name: Nagler, Benjamin
name: Barbosa, Sian
name: Koch, Jennifer
name: Orso, Giuliano
name: Widera, Artur
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Relaxation of quantum systems is a central problem in nonequilibrium physics. In contrast to classical systems, the underlying quantum dynamics results not only from atomic interactions but also from the long-range coherence of the many-body wave function. Experimentally, nonequilibrium states of quantum fluids are usually created using moving objects or laser potentials, directly perturbing and detecting the system's density. However the fate of long-range phase coherence for hydrodynamic motion of disordered quantum systems is less explored, especially in three dimension. Here, we unravel how the density and phase coherence of a Bose-Einstein condensate of $^6$Li$_2$ molecules respond upon quenching on or off an optical speckle potential. We find that, as the disorder is switched on, long-range phase coherence breaks down one order of magnitude faster than the density of the quantum gas responds. After removing it, the system needs two orders of magnitude longer times to reestablish quantum coherence, compared to the density response. We compare our results with numerical simulations of the Gross-Pitaevskii equation on large three-dimensional grids, finding an overall good agreement. Our results shed light on the importance of long-range coherence and possibly long-lived phase excitations for the relaxation of nonequilibrium quantum many-body systems.
description: 15 pages, 10 figures
Cyclocypridinae Kaufmann 1900
Creators: name: Karanovic, Ivana
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Ostracoda
Podocopida
Candonidae

description: Key to genera of the subfamily Cyclocypridinae  1 Terminal segment of the T3 elongated, more than two times longer than wide, seta “g” on the same appendage long, exceeding distal end of terminal segment, carapace in dorsal view oviform................................................ 2
- Terminal segment of the T3 much shorter, less than two times longer than wide, seta “g” tiny, sometimes even missing, carapace in dorsal view laterally compressed, or elongated........................................................ 3
 2 A1 6-segmented, swimming setae on the A2 missing, calcified inner lamella quite broad........ Kempfcyclocypris gen. nov.
 - A1 7-segmented, swimming setae on the A2 present, calcified inner lamella narrow......................................................................................................... Cyclocypris Brady & Norman, 1889
3 Basal seta on the T2 present, carapace globular or elongated in lateral view....................................... 4
- Basal seta on the T2 absent, carapace most usually with highly arched dorsal margin, very rarely elongated.............. 5
 4 Imprints of ovaries on the valves with distal end curved downwards......................... Physocypria Vávra, 1897
 - Imprints of ovaries on the valves with distal end curved upwards............................. Allocypria Rome, 1962
 5 Setae “e” and “f” on the T3 very short, seta h2 considerably longer than h1...................... Keysercypria gen. nov.
 - Setae “e” and “f” on the T3 long, setae h2 and h1 subequally long............................... Cypria Zenker, 1854
description: Published as part of Karanovic, Ivana, 2011, On the recent Cyclocypridinae (Podocopida, Candonidae) with description of two new genera and one new species 2820, pp. 1-61 in Zootaxa 2820 (1) on page 52, DOI: 10.11646/zootaxa.2820.1.1, http://zenodo.org/record/5288957
Continuous-Variable Quantum Games
Creators: name: Li, Hui
name: Du, Jiangfeng
name: Massar, Serge
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the quantization of games in which the players can access to a continuous set of classical strategies, making use of continuous-variable quantum systems. For the particular case of the Cournot's Duopoly, we find that, even though the two players both act as "selfishly" in the quantum game as they do in the classical game, they are found to virtually cooperate due to the quantum entanglement between them. We also find that the original Einstein-Podolksy-Rosen state contributes to the best profits that the two firms could ever attain. Moreover, we propose a practical experimental setup for the implementation of such quantum games.
description: 3 figures
Demand Driven Markets and the Importance of Demand Rationing
Creators: name: Prehn, Sören
name: Glauben, Thomas
name: Loy, Jens-Peter
name: Prehn, Sören
name: Glauben, Thomas
name: Loy, Jens-Peter
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agricultural Finance
subject: Demand and Price Analysis
subject: Risk and Uncertainty
subject: Corn market
subject: price discovery
subject: basis trading
subject: spread trading
subject: demand rationing

description: Whenever supply falls short or actual consumption rates exceed projected consumption rates grain markets call for demand rationing. In recent years, in particular high demand made demand rationing more than once necessary. Here, we develop a theory of how demand rationing functions. Theory implies that agricultural futures markets not only fulfill a hedging and information function but also a market coordination function. Speculators always have a rational economic incentive to bring demand down to fit with supply conditions. Empirical evidence for the US corn market emphasizes the importance of demand rationing for the functioning of grain markets.
infrastructure_access
Creators: name: Tu, Ying
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 441012
subject: Sociology of inequalities
classificationCode: 440603
subject: Economic geography
classificationCode: 440610
subject: Social geography
classificationCode: 440604
subject: Environmental geography
classificationCode: 420602
subject: Health equity
classificationCode: 420603
subject: Health promotion
classificationCode: 420606
subject: Social determinants of health

description: Associated data and code for the research "Inequality in infrastructure access and its association with health disparities"
Towards LLM-powered consistency in model-based low-code platforms
Creators: name: Hagel, Nathan
name: Hili, Nicolas
name: Bartel, Alexander
name: Koziolek, Anne
Publisher: name: Institute of Electrical and Electronics Engineers (IEEE)
Year: 2025
Subjects: LLM
AI
low-code development platform
meta-model
model-driven engineering
DSL
consistency

description: Low-code platforms often use various models that define the application built by citizen developers. 
With the increasing size and complexity of the applications built using low-code platforms, the number of required models and the dependencies between them expand. 
However, with increased complexity, keeping these models consistent during the development or evolution of the application is crucial and often a non-trivial task for citizen developers. 
In this paper, we present four approaches to how LLMs can be used and integrated on the architecture level into low-code platforms to (i) create consistent models automatically, (ii) keep models consistent based on different types of dependencies, and (iii) support users in maintaining consistent models during the development. 
We implemented the approaches in a prototype and evaluated them in an exploratory study. 
The results show that state-of-the-art LLMs are capable of preserving consistency for low-code models as well as generating correct and consistent models in various scenarios.
The data used for the study on the relationship between Yanshan movement and the Yanliao Biota
Creators: name: Ma, Chao
Publisher: name: figshare
Year: 2019
Subjects: subject: 49999 Earth Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 40299 Geochemistry not elsewhere classified
subject: 40304 Igneous and Metamorphic Petrology
subject: 40308 Palaeontology (incl. Palynology)

description: This repository contains one dataset and several MATLAB codes used for the study on the relationship between Yanshan movement and the Yanliao Biota.
HISTORY, CULTURE AND CONTRACT FARMING EMPIRICAL EVIDENCE FROM GHANA
Creators: name: Wuepper, David
name: Sauer, Johannes
name: Wuepper, David
name: Sauer, Johannes
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Community/Rural/Urban Development
subject: Institutional and Behavioral Economics
subject: Contract-Farming
subject: Rural Development
subject: Cultural Evolution
subject: Self-Efficacy
subject: Social Capital

description: We investigate whether colonial experiences in the Gold Coast still affect the performance of agribusiness in Ghana today. To this end, we surveyed 400 pineapple farmers in Ghana and connected this new dataset to data on the locations of Christian missionary schools and the performance of colonial cocoa cooperatives, from the first half of the 20th century. We find an effect of both historical variables on the performance of contract farming. The causal channel is a persistent change in culture: the performance of the colonial cocoa cooperatives changed peoples’ belief in their own capabilities to achieve business success (self-efficacy). The Christian missionary schools, in contrast, are found to have reduced village social capital.
Semantic Data for Humanities and Social Sciences (SDHSS): an Ecosystem of CIDOC CRM Extensions for Research Data Production and Reuse
Creators: name: Beretta, Francesco
Publisher: name: arXiv
Year: 2024
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Given the challenge of giant knowledge graphs created by major eco-nomic actors, which could virtually replace research in the Humani-ties and Social Sciences (HSS) in responding to public concerns, thequestion arises of how to increase the value of research data throughtheir publication and networking, applying the FAIR principles. Bothan epistemological and a semantic analysis show that the most rel-evant part of research data is factual information, understood as arepresentation of the objects observed by the scientific disciplines,their properties and their relationships.This rich universe of information will be made understandable andtherefore reusable through the application of foundational ontologiesand a methodology based on the distinction between different levelsof abstraction, allowing the collective development of one or moreshared and reusable domain ontologies. This vision is being carriedout around the CIDOC CRM, as core ontology, and Semantic Datafor Humanities and Social Sciences (SDHSS), as a high-level exten-sion of it, as well as an ecosystem of sub-domain extensions that canbe easily managed through the ontome.net application. This willresult in an interoperability that is semantically richer than the sim-ple alignment of ontologies and less costly in terms of resources, andabove all adapted to the scientific and humanistic project of the HSS.
description: Please refer to the publisher version for quotation
Coupling Neutrino Oscillations and Simulations of Core-Collapse Supernovae
Creators: name: Stapleford, Charles J.
name: Fröhlich, Carla
name: Kneller, James P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: At the present time even the most sophisticated, multi-dimensional simulations of core-collapse supernovae do not (self-consistently) include neutrino flavor transformation. This physics is missing despite the importance of neutrinos in the core-collapse explosion paradigm. Because of this dependence, any flavor transformation that occurs in the region between the proto-neutron star and the shock could result in major effects upon the dynamics of the explosion. We present the first hydrodynamic core-collapse supernova simulation which simultaneously includes flavor transformation of the free-streaming neutrinos in the neutrino transport. These oscillation calculations are dynamically updated and evolve self-consistently alongside the hydrodynamics. Using a $M=20\;{\rm M_{\odot}}$ progenitor, we find that while the oscillations have an effect on the neutrino emission and the heating rates, flavor transformation alone does not lead to a successful explosion of this progenitor in spherical symmetry.
description: 4 pages, 3 figures
THE ABILITY OF ORGANISATIONS TO ADOPT FOREIGN TRADE STANDARDS
Creators: name: Ehrich, Malte
name: Hess, Sebastian
name: Ehrich, Malte
name: Hess, Sebastian
Publisher: name: Unknown
Year: 2015
Subjects: subject: International Relations/Trade
subject: Labor and Human Capital
subject: Agricultural trade
subject: food standards
subject: organisations
subject: institutional quality

description: Recent empirical studies argue that the implementation of quality standards among agricultural exporters has the character of a fixed cost. However, this can be misleading if fixed costs are only understood in terms of required investments. Instead, we argue that standard adoption is the result of exporting countries’ private and public organisations managing to solve the standard implementation problem. We demonstrate that a newly developed theoretical approach to the role of problem solving in the production process can be interpreted as a model of a country’s ability to implement foreign trade standards. Predictions of this model are tested within a gravity framework: we compare the institutional characteristics of countries that successfully export fruit and vegetables to the EU (as a high standard market) against characteristics of countries that serve all markets. Results indicate that institutional characteristics like government effectiveness, regulatory quality and law enforcement are more relevant for exports to markets with relatively high standards than for overall exports.
Self-compensating incorporation of Mn in Ga(1-x)Mn(x)As
Creators: name: Masek, J.
name: Maca, F.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We consider hypothetical Ga7MnAs8, Ga16MnAs16, and Ga14Mn3As16 crystals with Mn in a substitutional, interstitial, and both positions. Spin-polarized FPLAPW calculations were used to obtain their electronic structure. We show that the interstitial Mn acts as a double donor and compensates the holes created by two Mn atoms in substitutional positions. This explains why the number of holes in Ga(1-x)Mn(x)As is much smaller than x. The presence of interstitial atoms may also be the reason for the lattice expansion with increasing content of Mn. The differences in electronic behavior of substitutional and interstitial Mn are discussed.
description: 6 pages, 2 figures
Forecasting with Pairwise Gaussian Markov Models
Creators: name: Escudier, Marc
name: Abdelkefi, Ikram
name: Fernandes, Clément
name: Pieczynski, Wojciech
Publisher: name: arXiv
Year: 2024
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Pairwise Markov Models (PMMs) extend the wellknown Hidden Markov Models (HMMs). Being significantly more general, PMMs enable several types of processing, like Bayesian filtering or smoothing, similar to those used in HMMs. In this paper, we deal with Bayesian forecasting. The aim is to show analytically in the simple stationary Gaussian case that the extent results obtained with HMM can be improved. We complete contributions with a theoretical error study and two real examples we deal with. Experiments show that PMMs-based forecasting can significantly improve HMMs-based ones.
From a Thick to a Thin Supergravity Domain Wall
Creators: name: Brito, Francisco A.
name: Cvetic, Mirjam
name: Yoon, SangChul
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Within D=4 N=1 supergravity theory we obtain an effective theory of the thin wall limit for a flat domain wall configuration, interpolating between isolated supersymmetric extrema of the matter potential. We focus on the Z_2 symmetric flat wall and derive the supersymmetric effective action both in the bulk and on the wall; in the thin wall limit the scalar field, forming the wall, is frozen, and provides the delta function domain wall source, while its fermionic partner decouples due to its large mass. In addition, the interaction between the gravitational supermultiplet and the interaction of the matter multiplet decouples on the wall. While the results are explicitly demonstrated within N=1 D=4 supergravity, we also provide a generalization of the result to D-dimensions.
description: Latex, 13 pages, Accepted to Physical Review D
Importance and impact of guest satisfaction
Creators: name: Karakas Morvay, Klara
name: Karakas Morvay, Klara
Publisher: name: Unknown
Year: 2014
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Public Economics
subject: hotel
subject: guest satisfaction
subject: customer value
subject: loyalty

description: The service quality can be measured by the consumers’ satisfaction. Researchers assume that high quality satisfies the guests and satisfaction may increase their loyalty. The main goal of this article is to measure guest satisfaction and prove its positive impacts on Hungarian hotels’ performance. A comprehensive survey was made on the Hungarian wellness hotels in October 2012; the primary aim was to provide them suggestions to improve their quality on the base of guests’ feedback. A self-administered questionnaire were compiled and sent back by 815 respondents. The investigation examined the quality awareness, quality perception, guest satisfaction and the following behavioral intentions of domestic guests of spa hotels. It can be concluded that domestic guests are generally satisfied with the quality of services offered by Hungarian spa hotels. The message of this research is for hotel managers that the increase of guest satisfaction can be reached by the improvement of service quality, and not only with price discounts. It has been demonstrated that satisfaction is closely related to their willingness to return to the hotel, so it is an essential condition of loyalty.
Relations between infinitesimal non-commutative cumulants
Creators: name: Celestino, Adrian
name: Ebrahimi-Fard, Kurusch
name: Perales, Daniel
Publisher: name: arXiv
Year: 2019
Subjects: subject: Combinatorics (math.CO)
subject: Operator Algebras (math.OA)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: Boolean, free and monotone cumulants as well as relations among them, have proven to be important in the study of non-commutative probability theory. Quite notably, Boolean cumulants were successfully used to study free infinite divisibility via the Boolean Bercovici--Pata bijection. On the other hand, in recent years the concept of infinitesimal non-commutative probability has been developed, together with the notion of infinitesimal cumulants which can be useful in the context of combinatorial questions. In this paper, we show that the known relations among free, Boolean and monotone cumulants still hold in the infinitesimal framework. Our approach is based on the use of Grassmann algebra. Formulas involving infinitesimal cumulants can be obtained by applying a formal derivation to known formulas. The relations between the various types of cumulants turn out to be captured via the shuffle algebra approach to moment-cumulant relations in non-commutative probability theory. In this formulation, (free, Boolean and monotone) cumulants are represented as elements of the Lie algebra of infinitesimal characters over a particular combinatorial Hopf algebra. The latter consists of the graded connected double tensor algebra defined over a non-commutative probability space and is neither commutative nor cocommutative. In this note it is shown how the shuffle algebra approach naturally extends to the notion of infinitesimal non-commutative probability space. The basic step consists in replacing the base field as target space of linear Hopf algebra maps by the Grassmann algebra over the base field. We also consider the infinitesimal analog of the Boolean Bercovici--Pata map.
description: Typos corrected and reference [Has11] added
The symbiotic star CH Cygni. III. A precessing radio jet
Creators: name: Crocker, M. M.
name: Davis, R. J.
name: Spencer, R. E.
name: Eyres, S. P. S.
name: Bode, M. F.
name: Skopal, A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: VLA, MERLIN and Hubble Space Telescope imaging observations of the extended regions of the symbiotic system CH Cygni are analysed. These extensions are evidence of a strong collimation mechanism, probably an accretion disk surrounding the hot component of the system. Over 16 years (between 1985 and 2001) the general trend is that these jets are seen to precess. Fitting a simple ballistic model of matter ejection to the geometry of the extended regions suggests a period of 6520 +/- 150 days, with a precession cone opening angle of 35 +/- 1 degrees. This period is of the same order as that proposed for the orbital period of the outer giant in the system, suggesting a possible link between the two. Anomalous knots in the emission, not explained by the simple model, are believed to be the result of older, slower moving ejecta, or possibly jet material that has become disrupted through sideways interaction with the surrounding medium.
description: 9 pages, 4 figures
Comment on "Are financial crashes predictable?"
Creators: name: Johansen, Anders
Publisher: name: arXiv
Year: 2002
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Comment on "Are financial crashes predictable?", L. Laloux, M. Potters, R. Cont, J.P Aguilar and J.-P. Bouchaud, Europhys. Lett. 45, 1-5 (1999)
description: 2 pages including 2 figures. Subm. to Eur. Phys Lett. Previous error in fig. 1 corrected
Survey of fans habits at two games of the 2013 Men’s Handball World Champioship in Madrid
Creators: name: Vaczi, Peter
name: Vaczi, Peter
Publisher: name: Unknown
Year: 2014
Subjects: subject: Public Economics
subject: handball
subject: worldchampionship
subject: sport turism
subject: fans

description: I have done a survey at the World’s Men Handball Championship 2013 in Madrid during two games of the Hungarian team among the Hungarian’s and the opponent’s fans. I was curious about how are the fans, who are coming to the World Championship, are behaving in this enviroment. I was also interested how strong bonds they have with the handball as a sport and what are their financial budget for this global event. At last I compared the number of the sport fans visiting the stadiums in Madrid in 2013 and in Gothenburg in 2011.
infrastructure_access_inequality
Creators: name: Tu, Ying
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 441012
subject: Sociology of inequalities
classificationCode: 440603
subject: Economic geography
classificationCode: 440610
subject: Social geography
classificationCode: 440604
subject: Environmental geography
classificationCode: 420602
subject: Health equity
classificationCode: 420603
subject: Health promotion
classificationCode: 420606
subject: Social determinants of health

description: Associated data and code for the research "Inequality in infrastructure access and its association with health disparities"
Prince Harry’s decision to ‘step back’ from the monarchy is a gift to republicans
Creators: name: Jones, Benjamin
Publisher: name: CQUniversity
Year: 2021
Subjects: subject: 210303 Australian History (excl. Aboriginal and Torres Strait Islander History)
subject: FOS: History and archaeology

description: Article for the Conversation on the impact for republicans of Prince Harry and his wife Meghan Markle stepping down from royal duties.
International passanger survey at the Airport Debrecen – Main characteristics of departure visitors from AD
Creators: name: Palatinus, Brigitta
name: Palatinus, Brigitta
Publisher: name: Unknown
Year: 2014
Subjects: subject: International Relations/Trade
subject: Public Economics
subject: visitor
subject: airport
subject: satisfaction
subject: expection
subject: questionnaire

description: The main reason of the research is to make a survey of the habits of foreign visitors arriving in Debrecen by air and their satisfaction. What was experienced in 2013 regarding low foreign proportion is also noticable in 2014. In the examined two months, of the whole passenger traffic between London and Debrecen only 10-15% is tourism by foreign visitors. There was not any information before about consumption of tourists arriving in Debrecen by air. In the course of my research I was examining the main elements of consumptions. From the gathered infromation from the questionaires it can be ascertained that on many occasions service providers failed to accomplish satisfying levels, quality. Underachievement occured and the experience of the visitors was worse than their expectations. This gives reasons for the indicators detailed analysis. The results of the satisfaction test might be an essential basis to further develop the city’s tourist products and services in the future. Personal experience of either visitors satisfaction or dissatisfaction, gets stored as a memory which influences future decisions on travelling. Because of this the city has to make an effort to provide higher standards of quality to people travelling into Debrecen by air from the first moment of arrival till the last moment of departure and leave satisffied.