cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Main features of the sandstone flora and plant communities of the North-Western part of Sudetes Foreland
Creators: name: Świerkosz, Krzysztof
Publisher: name: figshare
Year: 2012
Subjects: Botany

description: The north-western part of Sudetes Foreland encompasses North-Sudetian Depression filled up with cenoman-santon sandstones. It forms the northernmost part of Cretaceous Basin which flora and geobotany has not been studied in last decades. The whole area was heavily transformed by intensive agriculture and forestry, so nowadays only small remnants of natural habitats have been preserved. The most valuable are: oak-hornbeam forest Galio sylvatici-Carpinetum betuli, which remains mainly in sandstone ravines; ash-elm riparian forest Ficario-Ulmetum minoris along river valleys and ash-alder alluvial forest Stellario nemorum-Alnetum glutinosae occurring along smaller streams. Other natural plant communities include chasmophytic communities on rocks cliffs and in cervices (Woodsio-Asplenietum septentrionalis and Hypno-Polypodietum) or forest springs Caricetum remotae. Almost all communities has a lowland character without small admixture of montane species. Rare and endangered plant taxa cover: forest species (Cephalanthera damasonium, Equisetum telmateia, Matteucia struthiopteris, Moneses uniflora, Orthilia secunda); bog species which could be found in secondary peat-bogs (Drosera rotundifolia, Equisetum variegatum, Juncus tenageia, Ledum palustre, Lycopodiella inundata); thermophilous taxa which are common in the whole area but mostly occuring on non-sandstone bedrock like basalt (Alyssum alyssoides, Stachys germanica, Viola rupestris); the outposts of montane species migrating along Bóbr river valley (Aconitum variegatum, Allium ursinum, Aruncus sylvestris, Cardaminopsis halleri, Carduus personata, Leucoium vernum ssp. vernum, Lunaria rediviva). Also a significant representation of the sub-Atlantic phytoelement (Aira caryophyllea, Blechnum spicant, Chrysosplenium oppositifolium, Corynephorus canescens, Juncus tenageia, Lonicera periclymenum, Spergula morisonii) was found on this area. But the most curious and interesting groups are pteridophytes with extinct locality of Asplenium adiantum-nigrum var. melanea and two present localities of Trichomanes speciosum gametophytes on the sandstone bedrock discovered in 2002, the new taxon for Polish flora.
StORe Wars: May the Source and its Outputs be with you
Creators: name: Miller, Ken
name: Pryor, Graham
Publisher: name: Zenodo
Year: 2007

description: The area of interaction between output (research publication) repositories and source (primary research data) repositories was the principal focus of the StORe project. The main aim of the project was to identify options for increasing the value of using both source and output repositories by improving the linkages between them, thereby increasing the potential from significantly enhanced information access and dissemination. A key deliverable from the StORe Project is the pilot demonstrator.nbsp; It consists of a set of middleware designed to demonstrate the function of bi-directional links between source and output repositories. This middleware was developed to meet the specific needs of the social science e-research community, but is based on the underlying general requirements as defined from the StORe survey of the behaviours of researchers within seven scientific disciplines represented by the project. The pilot demonstrates the implementation of enhanced functionality within a test environment and the potential for a generic solution across the UK's broader e-research community. A short time hence, in a hyperspace not so far away, researchers will be able to instantly move from any publication to the data on which its findings were based, to instantly be linked to all publications that have resulted from a particular dataset and to move seamlessly around the research environment of data and its outputs.
Enhancing Air Quality Monitoring: A Brief Review of Federated Learning Advances
Creators: name: Yarham, Sara
name: Behjati, Mehran
Publisher: name: arXiv
Year: 2025
Subjects: subject: Computers and Society (cs.CY)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Monitoring air quality and environmental conditions is crucial for public health and effective urban planning. Current environmental monitoring approaches often rely on centralized data collection and processing, which pose significant privacy, security, and scalability challenges. Federated Learning (FL) offers a promising solution to these limitations by enabling collaborative model training across multiple devices without sharing raw data. This decentralized approach addresses privacy concerns while still leveraging distributed data sources. This paper provides a comprehensive review of FL applications in air quality and environmental monitoring, emphasizing its effectiveness in predicting pollutants and managing environmental data. However, the paper also identifies key limitations of FL when applied in this domain, including challenges such as communication overhead, infrastructure demands, generalizability issues, computational complexity, and security vulnerabilities. For instance, communication overhead, caused by the frequent exchange of model updates between local devices and central servers, is a notable challenge. To address this, future research should focus on optimizing communication protocols and reducing the frequency of updates to lessen the burden on network resources. Additionally, the paper suggests further research directions to refine FL frameworks and enhance their applicability in real-world environmental monitoring scenarios. By synthesizing findings from existing studies, this paper highlights the potential of FL to improve air quality management while maintaining data privacy and security, and it provides valuable insights for future developments in the field.
description: This is a preprint version of a paper accepted and published in Springer Lecture Notes in Networks and Systems. The final version is available at https://doi.org/10.1007/978-981-96-3949-6_41
Time Evolution via S-branes
Creators: name: Hashimoto, Koji
name: Ho, Pei-Ming
name: Nagaoka, Satoshi
name: Wang, John E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using S(pacelike)-branes defined through rolling tachyon solutions, we show how the dynamical formation of D(irichlet)-branes and strings in tachyon condensation can be understood. Specifically we present solutions of S-brane actions illustrating the classical confinement of electric and magnetic flux into fundamental strings and D-branes. The role of S-branes in string theory is further clarified and their RR charges are discussed. In addition, by examining ``boosted'' S-branes, we find what appears to be a surprising dual S-brane description of strings and D-branes, which also indicates that the critical electric field can be considered as a self-dual point in string theory. We also introduce new tachyonic S-branes as Euclidean counterparts to non-BPS branes.
description: 62 pages, 10 figures. v2 references added
Hanbury-Brown Twiss correlations to probe the population statistics of GHz photons emitted by conductors
Creators: name: Gabelli, Julien
name: Reydellet, Laure-Helene
name: Feve, Gwendal
name: Berroir, Jean-Marc
name: Placais, Bernard
name: Roche, Patrice
name: Glattli, Christian
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present the first study of the statistics of GHz photons in quantum circuits, using Hanbury-Brown and Twiss correlations. The superpoissonian and poissonian photon statistics of thermal and coherent sources respectively made of a resistor and a radiofrequency generator are measured down to the quantum regime at milliKelvin temperatures. As photon correlations are linked to the second and fourth moments of current fluctuations, this experiment, which is based on current cryogenic electronics, may become a standard for probing electron/photon statistics in quantum conductors
description: soumis le 22 mars 2004
On the Heegaard Floer homology of branched double-covers
Creators: name: Ozsvath, Peter
name: Szabo, Zoltan
Publisher: name: arXiv
Year: 2003
Subjects: subject: Geometric Topology (math.GT)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 57R

description: Let $L\subset S^3$ be a link. We study the Heegaard Floer homology of the branched double-cover $Σ(L)$ of $S^3$, branched along $L$. When $L$ is an alternating link, $\HFa$ of its branched double-cover has a particularly simple form, determined entirely by the determinant of the link. For the general case, we derive a spectral sequence whose $E^2$ term is a suitable variant of Khovanov's homology for the link $L$, converging to the Heegaard Floer homology of $Σ(L)$.
description: 36 pages, 12 figures
AJP Supplemental Tables
Creators: name: Hurtado-Carneiro, Verónica
Publisher: name: figshare
Year: 2020
Subjects: subject: 110306 Endocrinology
subject: FOS: Clinical medicine
subject: 110107 Metabolic Medicine
subject: 111103 Nutritional Physiology
subject: FOS: Health sciences

description: Supplemental Tables to Manuscript send to AJP (Endocrinology Metabolism)
Almost exact energies for the Gaussian-2 set with the semistochastic heat-bath configuration interaction method
Creators: name: Yao, Yuan
name: Giner, Emmanuel
name: Li, Junhao
name: Toulouse, Julien
name: Umrigar, C. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The recently developed semistochastic heat-bath configuration interaction (SHCI) method is a systematically improvable selected configuration interaction plus perturbation theory method capable of giving essentially exact energies for larger systems than is possible with other such methods. We compute SHCI atomization energies for 55 molecules which have been used as a test set in prior studies because their atomization energies are known from experiment. Basis sets from cc-pVDZ to cc-pV5Z are used, totaling up to 500 orbitals and a Hilbert space of $10^{32}$ Slater determinants for the largest molecules. For each basis, an extrapolated energy well within chemical accuracy (1 kcal/mol or 1.6 mHa/mol) of the exact energy for that basis is computed using only a tiny fraction of the entire Hilbert space. We also use our almost exact energies to benchmark coupled-cluster [CCSD(T)] energies. The energies are extrapolated to the complete basis set limit and compared to the experimental atomization energies. The extrapolations are done both without and with a basis-set correction based on density-functional theory. The mean absolute deviations from experiment for these extrapolations are 0.46 kcal/mol and 0.51 kcal/mol, respectively. Orbital optimization methods used to obtain improved convergence of the SHCI energies are also discussed.
description: 6 figures, 4 supplemental files
The Maxwell--Boltzmann gas with non-standard self--interactions: a novel approach to galactic dark matter
Creators: name: Balakin, Alexander
name: Sussman, Roberto A.
name: Zimdahl, Winfried
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using relativistic kinetic theory, we study spherically symmetric, static equilibrium configurations of a collisionless Maxwell-Boltzmann gas with non-standard self-interactions, modelled by an effective one--particle force. The resulting set of equilibrium conditions represents a generalization of the classical Tolman-Oppenheimer-Volkov equations. We specify these conditions for two types of Lorentz--like forces: one coupled to the 4-acceleration and the 4--velocity and the other one coupled to the Riemann tensor. We investigate the weak field limits in each case and show that they lead to various Newtonian type configurations that are different from the usual isothermal sphere characterizing the conventional Newtonian Maxwell--Boltzmann gas. These configurations could provide a plausible phenomenological and theoretical description of galactic dark matter halo structures. We show how the self--interaction may act phenomenologically as an effective cosmological constant and discuss possible connections with Modified Newtonian Dynamics(MOND).
description: 12 pages, 2 figures, minor corrections
Comments on the "Guidance Document" for the EU Deforestation Regulation
Creators: name: van Noordwijk, Meine
name: Dewi, Sonya
name: Harrison, Rhett
name: Ekadinata, Andre
name: Burgers, Paul
name: Slingerland, Maja
name: Sassen, Marieke
name: Watson, Cathy
name: Hoan Do, Trong
name: Sayer, Jeffrey
Publisher: name: Zenodo
Year: 2024

description: Supplementary material to the paper "Definitional confusion and collateral damage due to new deforestation-free trade policies" which is currently under peer review. Available on EarthArXiv

In response to various questions and comments the European Commission prepared a guidance document that was circulated in confidential circles in April 2024 and finally, with minor modifications, released on 2.10.24. The document has a low legal status, as clarified in a footnote : “Nothing in this guidance document either replaces or substitutes direct reference to the instruments described and the Commission does not accept any liability for any loss or damage caused by errors or statements made in it. Only the European Court of Justice can make final judgments on the Regulation’s interpretation.”

Seven pages of the text aim to clarify key concepts of "deforestation’ as the start of agricultural use"

The text was clearly written from a European perspective and frame of reference, where ...

A conceptual segregation of agriculture and forest as separate sectors and actors is taken as a given. Agroforestry is an afterthought, rather than part of the initial problem analysis and framing, despite its role in the production of the targeted commodities outside of Europe.

Swidden/fallow cycles are no longer part of the collective memory.

Privatization of formerly communal land is assumed and no institutions between individuals and state are acknowledged

A ‘single actor, single purpose’ view on land use prevails with little understanding of multifunctional, multi-stakeholder landscapes.

A belief that strongly disaggregated spatial data can be correctly interpreted in a black-white forest-agriculture language by external EUDR agents without knowledge of local context.

The text falls short of appreciating the reality of the landscapes in which large parts of the seven ‘deforestation-risk’ commodities are produced – and the differences between soybean, cattle, palm oil, cocoa, coffee and rubber production in this respect. Wood products are considered to be deforestation-free by definition and subject to forest degradation rules yet to be clarified.

There is no reference to the definitional confusion that arises where ‘EUDR forest’ concepts differ from the ‘UNFCCC forest’ used for by all countries for annual or bianniual reporting of climate emissions and land use change.  Greater subsidiarity and adjustment to national circumstances would have been preferred.

Yet, in a few places an underlying interest in protecting a ‘core forest’ concept as ultimate rational of the policy shines through – which could be a good direction to explore further.
Volcanic Heritage of Góry and Pogórze Kaczawskie. Excursion
Creators: name: Reczyńska, Kamila
name: Świerkosz, Krzysztof
Publisher: name: figshare
Year: 2018
Subjects: subject: 60202 Community Ecology (excl. Invasive Species Ecology)
subject: FOS: Biological sciences

description: Góry and Pogórze Kaczawskie are situated in the Western Sudetes about 80-100 km SW from Wrocław.The Kaczawskie Mts are rocky massif, elevated to various altitudes which spans the surface of 320 km2between the valley of the river Bóbr (one the west) and the valley of the river Nysa Szalona (on the east).The Kaczawskie Mts consist of four parallel and mostly forested ranges aligned from north-west tosouth-east which are typical of the Sudetes – these are: Northern Ridge (Okole Mt. 714 m a.s.l.), SouthernRidge (Baraniec Mt. 720 m a.s.l.) passing on the southeast in the Ołowiane Mts (Turzec 684 m a.s.l.),Little Ridge (Szybowcowa Mt. 561 m a.s.l.) and Eastern Ridge (Poręba 671 m a.s.l.) (Kondracki 2009).On the north, the Kaczawskie Mts gently extend into the Pogórze Kaczawskie (usually translatedas the Kaczawskie Upland or the Kaczawskie Hilly Land) which covers the area of about 880 km2 (Photo 1).It is divided along the valley of the river Kaczawa into two main parts: Western Kaczawa Plateau andEastern Kaczawa Plateau – both comprise of numerous, smaller physiographical units (Kondracki 2009).Among the most characteristic elements of this region are: vast planation surfaces above which volcanicmonadnocks arise (Ostrzyca 501 m a.s.l. and Grodziec 389 m a.s.l.), concave river valleys and rockygorges (Wąwóz Lipa, Wąwóz Siedmica, Wąwóz Myśliborski) as well as large river valleys as Bóbr withterraces, alluvial fans etc.
Pinus forest SW Poland raw data Forest 2021.rar
Creators: name: Świerkosz, Krzysztof
name: Reczyńska, Kamila
Publisher: name: figshare
Year: 2021
Subjects: subject: 60202 Community Ecology (excl. Invasive Species Ecology)
subject: FOS: Biological sciences

description: Raw data of phytosociological releves to paper "Phytosociological Analysis of Natural and Artificial Pine Forests of the Class Vaccinio-Piceetea in the Sudetes and Their Foreland (Bohemian Massif, Central Europe)" [Forest 2021]
Adaptive Parameterization for Neural Dialogue Generation
Creators: name: Cai, Hengyi
name: Chen, Hongshen
name: Zhang, Cheng
name: Song, Yonghao
name: Zhao, Xiaofang
name: Yin, Dawei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Neural conversation systems generate responses based on the sequence-to-sequence (SEQ2SEQ) paradigm. Typically, the model is equipped with a single set of learned parameters to generate responses for given input contexts. When confronting diverse conversations, its adaptability is rather limited and the model is hence prone to generate generic responses. In this work, we propose an {\bf Ada}ptive {\bf N}eural {\bf D}ialogue generation model, \textsc{AdaND}, which manages various conversations with conversation-specific parameterization. For each conversation, the model generates parameters of the encoder-decoder by referring to the input context. In particular, we propose two adaptive parameterization mechanisms: a context-aware and a topic-aware parameterization mechanism. The context-aware parameterization directly generates the parameters by capturing local semantics of the given context. The topic-aware parameterization enables parameter sharing among conversations with similar topics by first inferring the latent topics of the given context and then generating the parameters with respect to the distributional topics. Extensive experiments conducted on a large-scale real-world conversational dataset show that our model achieves superior performance in terms of both quantitative metrics and human evaluations.
description: Published as a long paper in EMNLP 2019
Massive IIA String Theory and Matrix Theory Compactification
Creators: name: Lowe, David A.
name: Nastase, Horatiu
name: Ramgoolam, Sanjaye
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a Matrix Theory approach to Romans' massive Type IIA supergravity. It is obtained by applying the procedure of Matrix Theory compactifications to Hull's proposal of the Massive Type IIA String Theory as M-Theory on a twisted torus. The resulting Matrix Theory is a super-Yang Mills theory on large N three-branes with a space dependent non-commutativity parameter, which is also independently derived by a T-duality approach. We give evidence showing that the energies of a class of physical excitations of the super-Yang Mills theory show the correct symmetry expected from Massive Type IIA string theory in a lightcone quantization.
description: 38 pages, latex, references added, some typos fixed
Modernization of African food retailing and (un)healthy food consumption: Insights from Zambia
Creators: name: Khonje, Makaiko G.
name: Qaim, Matin
name: Khonje, Makaiko G.
name: Qaim, Matin
Publisher: name: Unknown
Year: 2019
Subjects: subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Health Economics and Policy
subject: retail modernization
subject: supermarkets
subject: food consumption
subject: diets
subject: nutrition transition
subject: Zambia

description: Food environments in Africa are changing rapidly, with modern retailers – such as supermarkets, hypermarkets, and fast-food restaurants – gaining in importance. Changing food environments can influence consumer food choices and dietary patterns. Recent research suggested that the growth of supermarkets leads to more consumption of processed foods, less healthy diets, and rising obesity. However, the use of modern retailers may differ by socioeconomic status, which was hardly considered in previous work. Furthermore, existing studies on nutrition effects focused mainly on the role of supermarkets, although most consumers obtain their food from various sources. We add to this research direction by examining more explicitly the relationships between socioeconomic status, use of different modern and traditional retailers, and dietary patterns. The analysis uses household survey data from urban Zambia. Results show that twothirds of the households use modern and traditional retailers simultaneously, whereby richer households are more likely than poorer households to use supermarkets and hypermarkets. Use of modern retailers is positively associated with higher consumption of ultra-processed foods, also after controlling for income and other socioeconomic factors. However, the use of traditional grocery stores and kiosks is also positively associated with the consumption of ultra-processed foods, suggesting that modern retailers are not the only drivers of dietary transitions.
Charged 4D Einstein-Gauss-Bonnet-AdS Black Holes: Shadow, Energy Emission, Deflection Angle and Heat Engine
Creators: name: Panah, B. Eslam
name: Jafarzade, Kh.
name: Hendi, S. H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recently, there has been a surge of interest in the 4D Einstein-Gauss-Bonnet (4D EGB) gravity theory which bypasses the Lovelock theorem and avoids Ostrogradsky's instability. Such a novel theory has nontrivial dynamics and presents several predictions for cosmology and black hole physics. Motivated by recent astrophysical observations and the importance of anti-de Sitter spacetime, we investigate shadow geometrical shapes and deflection angle of light from the charged AdS black holes in 4D EGB gravity theory. We explore the shadow behaviors and photon sphere around such black holes, and inspect the effect of different parameters on them. Then, we present a study regarding the energy emission rate of such black holes and analyze the significant role of the Gauss-Bonnet (GB) coupling constant in the radiation process. Then, we perform a discussion of holographic heat engines of charged 4D EGB-AdS black holes by obtaining the efficiency of a rectangular engine cycle. Finally, by comparing heat engine efficiency with the Carnot efficiency, we indicate that the ratio $\frac{η}{η_{c}}$ is always less than one which is consistent with the thermodynamic second law.
description: 14 pages, 7 figures
Technical, Economic and Allocative Efficiency Among Maize and Rice Farmers Under Different Land-Use Systems in East African Wetlands
Creators: name: Kamau, Philip N.
name: Kamau, Philip N.
Publisher: name: Unknown
Year: 2019
Subjects: Crop Production/Industries
Land Economics/Use

description: A thesis submitted to the School of Agriculture and Enterprise Development in partial fulfillment of the requirements for the award of the degree of Master of Science in Agricultural Economics of Kenyatta University. Supervisors: Dr. Daniel Kyalo Willy and Dr. Lucy W. Ngare.
Trapped surfaces and symmetries
Creators: name: Mars, Marc
name: Senovilla, José M. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We prove that strictly stationary spacetimes cannot contain closed trapped nor marginally trapped surfaces. The result is purely geometric and holds in arbitrary dimension. Other results concerning the interplay between (generalized) symmetries and trapped submanifolds are also presented.
description: 9 pages, no figures. Final corrected version to appear in Class. Quantum Grav
Large Family of Two-Dimensional Ferroelectric Metals Discovered via Machine Learning
Creators: name: Ma, Xing-Yu
name: Lyu, Hou-Yi
name: Hao, Kuan-Rong
name: Zhao, Yi-Ming
name: Qian, Xiaofeng
name: Yan, Qing-Bo
name: Su, Gang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ferroelectricity and metallicity are usually believed not to coexist because conducting electrons would screen out static internal electric fields. In 1965, Anderson and Blount proposed the concept of 'ferroelectric metal', however, it is only until recently that very rare ferroelectric metals were reported. Here, by combining high-throughput ab initio calculations and data-driven machine learning method with new electronic orbital based descriptors, we systematically investigated a large family (2,964) of two-dimensional (2D) bimetal phosphates, and discovered 60 stable ferroelectrics with out-of-plane polarization, including 16 ferroelectric metals and 44 ferroelectric semiconductors that contain seven multiferroics. The ferroelectricity origins from spontaneous symmetry breaking induced by the opposite displacements of bimetal atoms, and the full-d-orbital coinage metal elements cause larger displacements and polarization than other elements. For 2D ferroelectric metals, the odd electrons per unit cell without spin polarization may lead to a half-filled energy band around Fermi level and is responsible for the metallicity. It is revealed that the conducting electrons mainly move on a single-side surface of the 2D layer, while both the ionic and electric contributions to polarization come from the other side and are vertical to the above layer, thereby causing the coexistence of metallicity and ferroelectricity. Van der Waals heterostructures based on ferroelectric metals may enable the change of Schottky barrier height or the Schottky-Ohmic contact type and induce a dramatic change of their vertical transport properties. Our work greatly expands the family of 2D ferroelectric metals and will spur further exploration of 2D ferroelectric metals.
description: 28 pages, 5 figures, 1 table
Auxiliary Field Diffusion Monte Carlo calculation of ground state properties of neutron drops
Creators: name: Pederiva, Francesco
name: Sarsa, A.
name: Schmidt, K. E.
name: Fantoni, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The Auxiliary Field Diffusion Monte Carlo method has been applied to simulate droplets of 7 and 8 neutrons. Results for realistic nucleon-nucleon interactions, which include tensor, spin--orbit and three--body forces, plus a standard one--body confining potential, have been compared with analogous calculations obtained with Green's Function Monte Carlo methods. We have studied the dependence of the binding energy, the one--body density and the spin--orbit splittings of $^7n$ on the depth of the confining potential. The results obtained show an overall agreement between the two quantum Monte Carlo methods, although there persist differences in the evaluation of spin--orbit forces, as previously indicated by bulk neutron matter calculations. Energy density functional models, largely used in astrophysical applications, seem to provide results significantly different from those of quantum simulations. Given its scaling behavior in the number of nucleons, the Auxiliary Field Diffusion Monte Carlo method seems to be one of the best candidate to perform {\sl ab initio} calculations on neutron rich nuclei.
description: 8 pages, 3 figures
Does Culture Matter? A Test of the Harrison Hypothesis
Creators: name: Moore, Colin A.
name: Chishimba, Elizabeth Mubanga
name: Wilson, Paul N.
name: Moore, Colin A.
name: Chishimba, Elizabeth Mubanga
name: Wilson, Paul N.
Publisher: name: Unknown
Year: 2019
Subjects: subject: International Development
subject: development
subject: culture
subject: fatalism
subject: altruism

description: ABSTRACT: This study utilizes unique data from the World Values Survey to test the hypothesis that fatalism and the practice of the Golden Rule influence the economic development of nations. We use standard econometric models that account for endogeneity to understand the relative roles of culture, productivity, institutions, and geography in explaining human flourishing. Our analysis supports Harrison’s cultural hypothesis and demonstrates that fatalism and altruism’s explanatory powers, in our full model, are no less powerful than productivity, institutions, and geography in explaining economic performance. However, transforming existing fatalistic and altruistic attitudes in a positive direction using public policy to provide greater support for human flourishing may prove more challenging than overcoming other development constraints.
Bound states by a pseudoscalar Coulomb potential in 1+1 dimensions
Creators: name: de Castro, Antonio S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Dirac equation is solved for a pseudoscalar Coulomb potential in a two-dimensional world. An infinite sequence of bounded solutions are obtained. These results are in sharp contrast with those ones obtained in 3+1 dimensions where no bound-state solutions are found. Next the general two-dimensional problem for pseudoscalar power-law potentials is addressed consenting us to conclude that a nonsingular potential leads to bounded solutions. The behaviour of the upper and lower components of the Dirac spinor for a confining linear potential nonconserving- as well as conserving-parity, even if the potential is unbounded from below, is discussed in some detail.
description: 18 pages, 6 figures
Cluster Masses Accounting for Structure along the Line of Sight
Creators: name: Dodelson, Scott
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Weak gravitational lensing of background galaxies by foreground clusters offers an excellent opportunity to measure cluster masses directly without using gas as a probe. One source of noise which seems difficult to avoid is large scale structure along the line of sight. Here I show that, by using standard map-making techniques, one can minimize the deleterious effects of this noise. The resulting uncertainties on cluster masses are significantly smaller than when large scale structure is not properly accounted for, although still larger than if it was absent altogether.
description: 5 pages, 5 figures
Smooth markets: A basic mechanism for organizing gradient-based learners
Creators: name: Balduzzi, David
name: Czarnecki, Wojciech M
name: Anthony, Thomas W
name: Gemp, Ian M
name: Hughes, Edward
name: Leibo, Joel Z
name: Piliouras, Georgios
name: Graepel, Thore
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Computer Science and Game Theory (cs.GT)
subject: Multiagent Systems (cs.MA)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: With the success of modern machine learning, it is becoming increasingly important to understand and control how learning algorithms interact. Unfortunately, negative results from game theory show there is little hope of understanding or controlling general n-player games. We therefore introduce smooth markets (SM-games), a class of n-player games with pairwise zero sum interactions. SM-games codify a common design pattern in machine learning that includes (some) GANs, adversarial training, and other recent algorithms. We show that SM-games are amenable to analysis and optimization using first-order methods.
description: 18 pages, 3 figures
Is the central compact object in HESS J1731-347 a hybrid star with a quark core? An analysis with the constant speed of sound parametrization
Creators: name: Pal, Suman
name: Podder, Soumen
name: Chaudhuri, Gargi
Publisher: name: arXiv
Year: 2025
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work, we investigate the possibility of the compact object in HESS J1731-347 with $M=0.77_{-0.17}^{+0.20}M_{\odot}$ and $R=10.4_{-0.78}^{+0.86} km$ to be a hybrid star with quark matter in the inner core. The observation of this low mass compact star dictates the use of softer equation of state which on the contrary cannot explain the massive compact stars. This poses a new challenge for the astrophysicists in their search for the equation of state of compact objects. The hybrid equations of state are constructed using the IUFSU parametrization based on the relativistic mean field (RMF) theory for the hadronic part and the generic constant speed of sound parametrization (CSS) for the phase transition to quark matter.The CSS framework is characterized by three key parameters, namely the transition density $(ρ_{tr})$, the energy jumps $(Δ\varepsilon)$ and the speed of sound $(C_s)$. Here, our primary aim is to investigate the influence of individual CSS parameters on the formation of a object of small mass and radius compatible with HESS J1731-347 parameters. We have also examined the effect of hadronic parameters such as effective mass, symmetry energy, and the slope of the symmetry energy at saturation densities on the formation of this compact object.Finally our analysis suggests that, within a 1$σ$ credible level, HESS J1731-347 aligns with the scenario of a stable hybrid star with early deconfinement and higher energy gap
The Orbital Order Parameter in La0.95Sr0.05MnO3 probed by Electron Spin Resonance
Creators: name: Deisenhofer, J.
name: Kochelaev, B. I.
name: Shilova, E.
name: Balbashov, A. M.
name: Loidl, A.
name: von Nidda, H. -A. Krug
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The temperature dependence of the electron-spin resonance linewidth in La0.95Sr0.05MnO3 has been determined and analyzed in the paramagnetic regime across the orbital ordering transition. From the temperature dependence and the anisotropy of linewidth and $g$-value the orbital order can be unambiguously determined via the mixing angle of the wave functions of the $e_{\rm g}$-doublet. The linewidth shows a similar evolution with temperature as resonant x-ray scattering results.
Spring Frost in Apple Orchards: Quality Effects can Outweigh Quantity Effects
Creators: name: Dalhaus, Tobias
name: Blanke, Michael M.
name: Bravin, Esther
name: Dietiker, Dominique
name: Finger, Robert
name: Dalhaus, Tobias
name: Blanke, Michael M.
name: Bravin, Esther
name: Dietiker, Dominique
name: Finger, Robert
Publisher: name: Unknown
Year: 2019
Subjects: Risk and Uncertainty

description: Presentation ID 16383
Observation of Photoinduced Terahertz Gain in GaAs Quantum Wells: Evidence for Radiative Two-Exciton-to-Biexciton Scattering
Creators: name: Li, X.
name: Yoshioka, K.
name: Zhang, Q.
name: Peraca, N. Marquez
name: Katsutani, F.
name: Gao, W.
name: Noe, G. T.
name: Watson, J. D.
name: Manfra, M. J.
name: Katayama, I.
name: Takeda, J.
name: Kono, J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We have observed photoinduced negative optical conductivity, or gain, in the terahertz frequency range in a GaAs multiple-quantum-well structure in a strong perpendicular magnetic field at low temperatures. The gain is narrow-band: it appears as a sharp peak (linewidth $
description: 5 pages, 4 figures
Konishi Anomalies and Curves without Adjoints
Creators: name: Landsteiner, Karl
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Generalized Konishi anomaly relations in the chiral ring of N=1 supersymmetric gauge theories with unitary gauge group and chiral matter field in two-index tensor representations are derived. Contrary to previous investigations of related models we do not include matter multiplets in the adjoint representation. The corresponding curves turn out to be hyperelliptic. We also point out equivalences to models with orthogonal or symplectic gauge groups.
description: 21 pages, v2: References added, misprints corrected
The Widening – Exploring Potentials and Possibilities of Extending the Research Infrastructure
Creators: name: Hausstein, Brigitte
Publisher: name: Zenodo
Year: 2008

description: The project will focus on the need for widening the participation in the CESSDA RI both directly by fostering membership in new countries and indirectly by deepening involvement and extending the CESSDA RI to agencies and organizations which remain outside of CESSDA yet continue to host important data collections. Although the current CESSDA network is extensive, including 21 countries, it is not totally comprehensive. Equally, the CESSDA network is currently rather heterogeneous, with some country members being younger and less-developed. These imbalances will be addressed. A special action plan will be set up in order to extend the existing CESSDA network and foster the development of national data archiving initiatives in those countries which are not currently part of CESSDA. The obvious purpose of this activity is to spread the CESSDA-network to each EU-member state and to create and maintain a 'complete' pan-European SSH network, including representation from emerging and candidate countries. Equally, some countries with organizations within CESSDA have specialised research-led project-based teams whose data currently fall outside of the CESSDA network, and mechanisms likewise need to be put in place to create better comprehensiveness and coherency.
Synthesis and crystal structures of a polymeric trimethyltin(IV) and a tetranuclear dibutyltin(IV) complex with azo-carboxylates derived from 4- or 3-amino benzoic acid and naphthalen-1 or 2-ol
Creators: name: Paresh Debnath
name: Debnath, Pratima
name: Keisham Surjit Singh
name: Lesław Sieroń
name: Maniukiewicz, Waldemar
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Plant Biology
subject: 60506 Virology
subject: Computational Biology

description: Complex 1 was synthesized by the reaction of 4-(4-hydroxynaphthylazo)-benzoic acid with trimethyltin(IV) chloride in anhydrous methanol using triethylamine as base while 2 was synthesized by the reaction of 3-(2-hydroxynaphthylazo)-benzoic acid with dibutyltin(IV) oxide in anhydrous toluene. The complexes were characterized by elemental analysis, IR, and multinuclear (1H, 13C, and 119Sn) NMR spectroscopy. The coordination behavior and geometries around tin in 1 and 2 were established by X-ray crystallography while geometries of the complexes in solution were determined by 119Sn-NMR spectroscopy. The polymeric 1 displayed slightly distorted trigonal bipyramidal geometry around the tin with the equatorial plane occupied by three methyl groups and the axial positions occupied by a carboxylate oxygen and a phenoxide oxygen of another ligand. The tetranuclear 2 exhibited a bis[dicarboxylatotetraorganodistannoxane] type structure with a non-centrosymmetric Sn2O4 core where the central Sn2O2 ring was connected to two exo-cyclic tin ions through μ3-oxo atoms. The coordination geometry around exo- and endo-cyclic tin ions was distorted octahedral and deformed square pyramidal, respectively. 119Sn NMR spectral study suggested four-coordinate tetrahedral 1 while six- and five-coordinate structures around exo- and endo-cyclic tin ions for 2 in solution.
Quantum Extended Supersymmetries
Creators: name: Grigore, Dan Radu
name: Scharf, Gunter
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyse some quantum multiplets associated with extended supersymmetries. We study in detail the general form of the causal (anti)commutation relations. The condition of positivity of the scalar product imposes severe restrictions on the (quantum) model. It is problematic if one can find out quantum extensions of the standard model with extended supersymmetries.
description: 28 pages, LATEX 2e
Supplementary Figures for "Variation of pro-vasopressin processing in parvocellular and magnocellular neurons in the paraventricular nucleus of the hypothalamus: evidence from the vasopressin-related glycopeptide copeptin"
Creators: name: Sakamoto, Hirotaka
Publisher: name: figshare
Year: 2020
Subjects: Neuroscience

description: Supplementary Figures
Large-scale multiconfiguration Dirac-Hartree-Fock calculations for astrophysics: Cl-like ions from Cr~VIII to Zn~XIV
Creators: name: Wang, K.
name: Jönsson, P.
name: Del Zanna, G.
name: Godefroid, M.
name: Chen, Z. B.
name: Chen, C. Y.
name: Yan, J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We use the multiconfiguration Dirac-Hartree-Fock (MCDHF) method combined with the relativistic configuration interaction (RCI) approach (GRASP2K) to provide a consistent set of transition energies and radiative transition data for the lower $n =3$ states in all Cl-like ions of astrophysical importance, from \ion{Cr}{8} to \ion{Zn}{14}. We also provide excitation energies calculated for \mbox{Fe X} using the many-body perturbation theory (MBPT, implemented within FAC). The comparison of the present MCDHF results with MBPT and with the available experimental energies indicates that the theoretical excitation energies are highly accurate, with uncertainties of only a few hundred cm$^{-1}$. Detailed comparisons for Fe~X and Ni~XII highlight discrepancies in the experimental energies found in the literature. Several new identifications are proposed.
The Staff - Professionalisation, Network of Excellence, Training
Creators: name: Dusa, Adrian
Publisher: name: Zenodo
Year: 2008

description: The project will deal with the skills gap between the better developed archives and those which are less well resourced. It will establish a working group, undertake an audit of expertise, organise a workshop for CESSDA members and draft a report based on the results of the audit and the workshop. The aim is to extend the CESSDA network, in terms of membership, professionalism and skills and in terms of associations with similar organisations. The precise differences between CESSDA archives will be examined to identify the gaps (both technical and organisational) that will need to be filled to bring all organisations (both existing members and those which may seek to join at a later stage) to a common standard. This work will be complemented by the development of a self–assessment tool which will enable for all archives to measure their conformance with the OAIS Reference Model. The combined effect of this work will be to raise standards within the community.
The Kovacs effect in model glasses
Creators: name: Bertin, E. M.
name: Bouchaud, J. -P.
name: Drouffe, J. -M.
name: Godreche, C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We discuss the `memory effect' discovered in the 60's by Kovacs in temperature shift experiments on glassy polymers, where the volume (or energy) displays a non monotonous time behaviour. This effect is generic and is observed on a variety of different glassy systems (including granular materials). The aim of this paper is to discuss whether some microscopic information can be extracted from a quantitative analysis of the `Kovacs hump'. We study analytically two families of theoretical models: domain growth and traps, for which detailed predictions of the shape of the hump can be obtained. Qualitatively, the Kovacs effect reflects the heterogeneity of the system: its description requires to deal not only with averages but with a full probability distribution (of domain sizes or of relaxation times). We end by some suggestions for a quantitative analysis of experimental results.
description: 17 pages, 6 figures; revised version
Magnon-Hole Scattering and Charge Order in $Sr_{14-x}Ca_xCu_{24}O_{41}$
Creators: name: Hess, C.
name: ElHaes, H.
name: Büchner, B.
name: Ammerahl, U.
name: Hücker, M.
name: Revcolevschi, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The magnon thermal conductivity $κ_{\mathrm{mag}}$ of the hole doped spin ladders in $\rm Sr_{14-x}Ca_xCu_{24}O_{41}$ has been investigated at low doping levels $x$. The analysis of $κ_{\mathrm{mag}}$ reveals a strong doping and temperature dependence of the magnon mean free path $l_{\mathrm{mag}}$ which is a local probe for the interaction of magnons with the doped holes in the ladders. In particular, this novel approach to studying charge degrees of freedom via spin excitations shows that charge ordering of the holes in the ladders leads to a freezing out of magnon-hole scattering processes.
Les sites contaminés par les métaux : un modèle d’étude pour des recherches innovantes et multidisciplinaires, le cas de la valorisation des hyperaccumulatrices de cuivre et de cobalt.
Creators: name: Lange, Bastien
name: Pourret, Olivier
name: Michel-Pierre Faucon
Publisher: name: figshare
Year: 2020
Subjects: subject: 50199 Ecological Applications not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 49999 Earth Sciences not elsewhere classified

description: Article published in the French magazine Environment & Technique (2015) 347, 64-66