cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nematicity and Competing Orders in Superconducting Magic-Angle Graphene
Creators: name: Cao, Yuan
name: Rodan-Legrain, Daniel
name: Park, Jeong Min
name: Yuan, Fanqi Noah
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Fernandes, Rafael M.
name: Fu, Liang
name: Jarillo-Herrero, Pablo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Strongly interacting electrons in solid-state systems often display tendency towards multiple broken symmetries in the ground state. The complex interplay between different order parameters can give rise to a rich phase diagram. Here, we report on the identification of intertwined phases with broken rotational symmetry in magic-angle twisted bilayer graphene (TBG). Using transverse resistance measurements, we find a strongly anisotropic phase located in a 'wedge' above the underdoped region of the superconducting dome. Upon crossing the superconducting dome, a reduction of the critical temperature is observed, similar to the behavior of certain cuprate superconductors. Furthermore, the superconducting state exhibits a anisotropic response to an directional-dependent in-plane magnetic field, revealing a nematic pairing state across the entire superconducting dome. These results indicate that nematic fluctuations might play an important role in the low-temperature phases of magic-angle TBG, and pave the way for using highly-tunable moiré superlattices to investigate intertwined phases in quantum materials.
description: 11 pages, 6 figures
Farmer Organization, Collective Action and Market Access in Meso-America
Creators: name: Hellin, Jonathan
name: Lundy, Mark
name: Meijer, Madelon
name: Hellin, Jonathan
name: Lundy, Mark
name: Meijer, Madelon
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: smallholder farmers
subject: maize
subject: high value agricultural products
subject: Mexico
subject: Central America
subject: business development services
subject: value chains
subject: pro-poor growth

description: The global agricultural economy is changing. Commodity prices are declining, and producers increasingly supply complex value chains. There is growing interest in how farmers can benefit from emerging market opportunities. Farmers are encouraged to produce high value crops and engage in value-adding activities such as agro-processing. Farmer organization and collective action are often seen as key factors in enhancing farmers’ access to markets. Often too little attention is directed at a) the most appropriate types of organization, b) whether the public and/or private sector is best placed to support their formation, and c) the conditions necessary for ensuring their economic viability. This paper reports on research in Mexico and Central America that explored these issues for commodity maize and high value vegetables respectively. The benefits of farmer organization are more evident in the vegetable sector characterized by high transaction costs associated with market access. The research suggests that farmer organizations established by and directly linked to supermarkets may be more economically sustainable as opposed to organizations supported by non-governmental organizations. However, the most representative vegetable producer organizations in both Honduras and El Salvador include fewer than 5 percent of total horticultural producers. This is due to producer organizations’ limited business skills and non-replicable organizational models for linking producers to markets. There is less incentive for maize farmers to organize themselves to access output markets as the transaction costs associated with market access are relatively low: there are so many buyers and sellers that farmer organizations would have little impact on, for example, prices. The benefits of farmer organization are clearer when it comes to accessing credit, seed, and fertilizer. Farmer organization is a critical factor in making markets work for the poor particularly in high value products, but the role and timing of the substantial public and private investment needed to establish and maintain these organizations is poorly understood.
FAST functional connectivity implicates P300 connectivity in working memory deficits in Alzheimer's disease
Creators: name: Roy, Om
name: Moshfeghi, Yashar
name: Ibanez, Agustin
name: Lopera, Francisco
name: Parra, Mario A
name: Smith, Keith M
Publisher: name: arXiv
Year: 2024
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Signal Processing (eess.SP)
subject: FOS: Biological sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Measuring transient functional connectivity is an important challenge in Electroencephalogram (EEG) research. Here, the rich potential for insightful, discriminative information of brain activity offered by high temporal resolution is confounded by the inherent noise of the medium and the spurious nature of correlations computed over short temporal windows. We propose a novel methodology to overcome these problems called Filter Average Short-Term (FAST) functional connectivity. First, long-term, stable, functional connectivity is averaged across an entire study cohort for a given pair of Visual Short Term Memory (VSTM) tasks. The resulting average connectivity matrix, containing information on the strongest general connections for the tasks, is used as a filter to analyse the transient high temporal resolution functional connectivity of individual subjects. In simulations, we show that this method accurately discriminates differences in noisy Event-Related Potentials (ERPs) between two conditions where standard connectivity and other comparable methods fail. We then apply this to analyse activity related to visual short-term memory binding deficits in two cohorts of familial and sporadic Alzheimer's disease. Reproducible significant differences were found in the binding task with no significant difference in the shape task in the P300 ERP range. This allows new sensitive measurements of transient functional connectivity, which can be implemented to obtain results of clinical significance.
description: Published in Network Neuroscience (2024) by MIT Press
Approximate stress-energy tensor of the massless spin-1/2 field in Schwarzschild spacetime
Creators: name: Matyjasek, Jerzy
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The approximate stress-energy tensor of the conformally invariant massless spin-1/2 field in the Hartle-Hawking state in the Schwarzschild spacetime is constructed. It is shown that by solving the conservation equation in conformal space and utilizing the regularity conditions in a physical metric one obtains the stress-energy tensor that is in a good agreement with the numerical calculations. The back reaction of the quantized field upon the spacetime metric is briefly discussed.
Griffiths-McCoy singularity on the diluted Chimera graph: Monte Carlo simulations and experiments on the quantum hardware
Creators: name: Nishimura, Kohji
name: Nishimori, Hidetoshi
name: Katzgraber, Helmut G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The Griffiths-McCoy singularity is a phenomenon characteristic of low-dimensional disordered quantum spin systems, in which the magnetic susceptibility shows singular behavior as a function of the external field even within the paramagnetic phase. We study whether this phenomenon is observed in the transverse-field Ising model with disordered ferromagnetic interactions on the quasi-two-dimensional diluted Chimera graph both by quantum Monte Carlo simulations and by extensive experiments on the D-Wave quantum annealer used as a quantum simulator. From quantum Monte Carlo simulations, evidence is found for the existence of the Griffiths-McCoy singularity in the paramagnetic phase. The experimental approach on the quantum hardware produces results that are less clear-cut due to the intrinsic noise and errors in the analog quantum device but can nonetheless be interpreted to be consistent with the existence of the Griffiths-McCoy singularity as in the Monte Carlo case. This is the first experimental approach based on an analog quantum simulator to study the subtle phenomenon of Griffiths-McCoy singularities in a disordered quantum spin system, through which we have clarified the capabilities and limitations of the D-Wave quantum annealer as a quantum simulator.
description: 18 pages, 35 figures, 2 tables
A two-parameter random walk with approximate exponential probability distribution
Creators: name: Van der Straeten, Erik
name: Naudts, Jan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences
subject: 60G50

description: We study a non-Markovian random walk in dimension 1. It depends on two parameters eps_r and eps_l, the probabilities to go straight on when walking to the right, respectively to the left. The position x of the walk after n steps and the number of reversals of direction k are used to estimate eps_r and eps_l. We calculate the joint probability distribution p_n(x,k) in closed form and show that, approximately, it belongs to the exponential family.
description: 12 pages, updated reference to companion paper cond-mat/0601263
RSAM-Seg: A SAM-based Approach with Prior Knowledge Integration for Remote Sensing Image Semantic Segmentation
Creators: name: Zhang, Jie
name: Yang, Xubing
name: Jiang, Rui
name: Shao, Wei
name: Zhang, Li
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The development of high-resolution remote sensing satellites has provided great convenience for research work related to remote sensing. Segmentation and extraction of specific targets are essential tasks when facing the vast and complex remote sensing images. Recently, the introduction of Segment Anything Model (SAM) provides a universal pre-training model for image segmentation tasks. While the direct application of SAM to remote sensing image segmentation tasks does not yield satisfactory results, we propose RSAM-Seg, which stands for Remote Sensing SAM with Semantic Segmentation, as a tailored modification of SAM for the remote sensing field and eliminates the need for manual intervention to provide prompts. Adapter-Scale, a set of supplementary scaling modules, are proposed in the multi-head attention blocks of the encoder part of SAM. Furthermore, Adapter-Feature are inserted between the Vision Transformer (ViT) blocks. These modules aim to incorporate high-frequency image information and image embedding features to generate image-informed prompts. Experiments are conducted on four distinct remote sensing scenarios, encompassing cloud detection, field monitoring, building detection and road mapping tasks . The experimental results not only showcase the improvement over the original SAM and U-Net across cloud, buildings, fields and roads scenarios, but also highlight the capacity of RSAM-Seg to discern absent areas within the ground truth of certain datasets, affirming its potential as an auxiliary annotation method. In addition, the performance in few-shot scenarios is commendable, underscores its potential in dealing with limited datasets.
description: 12 pages, 11 figures
title: Transgresser pour déconstruire. Deborah de Robertis : l’impertinence contre le pouvoir
Creators: name: Petit Dit Duhal, Quentin
Publisher: name: Savoirs en prisme
Year: 2019

description: Cet article analyse la production artistique de Deborah de Robertis, qui fait polémique depuis 2014 lorsqu’elle a exposé son sexe devant l’Origine du monde de Gustave Courbet au musée d’Orsay. Afin de renverser le regard masculin exercé sur l’œuvre, l’artiste incarne le modèle de tableaux célèbres sans autorisation des musées dans lesquels elle performe, donnant lieu à plusieurs gardes à vue et procès. Il s’agit de montrer comment l’artiste dépasse la simple provocation pour formuler un discours artistique et politique, tout en se concentrant sur son impertinence prenant des risques quant à l’autorité. Cette étude pose d’abord la question d’un certain conformisme face à la création d’artistes femmes des années 1970, avant d’examiner le caractère subversif de ses œuvres qui entrent en rupture avec l’ordre moral. L’étude analyse enfin les rapports de pouvoir qu’entretiennent l’artiste et l’institution muséale afin d’obtenir une vue d’ensemble des occurrences que prend l’audace dans sa production artistique.
description: Savoirs en prisme, No. 11 (2019): L'audace : vertu, valeur
Anomalous pseudogap and superconducting state properties of heavily disordered Y1-xCaxBa2(Cu1-yZny)3O7-delta
Creators: name: Naqib, S. H.
name: Cooper, J. R.
name: Islam, R. S.
name: Tallon, J. L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The role of substantial in-plane disorder (Zn) on the transport and AC susceptibility of Y1-xCaxBa2(Cu1-yZny)3O7-delta was investigated over a wide range of planar hole concentration, p. Resistivity, r(T), for a number of overdoped to underdoped samples with y equals/greater than 0.055 showed clear downturns at a characteristic temperature similar to that found at T* in Zn-free underdoped samples because of the presence of the pseudogap. Contrary to the widely observed behavior for underdoped cuprates at lower Zn contents (where the pseudogap energy increases almost linearly with decreasing p in the same way as for the Zn-free compounds), this apparent pseudogap temperature at high Zn content showed very little or no p-dependence. It also increases systematically with increasing Zn concentration in the CuO2 planes. This anomalous behavior appears quite abruptly, e.g., samples with y less than/equals 0.05 exhibit the usual T*(p) behavior. AC susceptibility of these heavily disordered samples showed the superfluid density to be extremely low. Magneto-transport, r(T,H), measurements are provisionally interpreted in terms of high-strength pinning centers for vortices in these samples. We also discuss various possible scenarios that might lead to a Zn induced pseudogap in the cuprates.
Bridging nano-optics and condensed matter formalisms in a unified description of inelastic scattering of relativistic electron beams
Creators: name: Lourenço-Martins, Hugo
name: Lubk, Axel
name: Kociak, Mathieu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: In the last decades, the blossoming of experimental breakthroughs in the domain of electron energy loss spectroscopy (EELS) has triggered a variety of theoretical developments. Those have to deal with completely different situations, from atomically resolved phonon mapping to electron circular dichroism passing by surface plasmon mapping. All of them rely on very different physical approximations and have not yet been reconciled, despite early attempts to do so. As an effort in that direction, we report on the development of a scalar relativistic quantum electrodynamic (QED) approach of the inelastic scattering of fast electrons. This theory can be adapted to describe all modern EELS experiments, and under the relevant approximations, can be reduced to any of the last EELS theories. In that aim, we present in this paper the state of the art and the basics of scalar relativistic QED relevant to the electron inelastic scattering. We then give a clear relation between the two once antagonist descriptions of the EELS, the retarded green Dyadic, usually applied to describe photonic excitations and the quasi-static mixed dynamic form factor (MDFF), more adapted to describe core electronic excitations of material. We then use this theory to establish two important EELS-related equations. The first one relates the spatially resolved EELS to the imaginary part of the photon propagator and the incoming and outgoing electron beam wavefunction, synthesizing the most common theories developed for analyzing spatially resolved EELS experiments. The second one shows that the evolution of the electron beam density matrix is proportional to the mutual coherence tensor, proving that quite universally, the electromagnetic correlations in the target are imprinted in the coherence properties of the probing electron beam.
description: Re-Submission to SciPost. Updated version: minor revisions, SciPost template
Duality and confinement in D=3 models driven by condensation of topological defects
Creators: name: Gaete, Patricio
name: Wotzasek, Clovis
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the interplay of duality and confinement in certain three-dimensional models induced by the condensation of topological defects. To this end we check for the confinement phenomenon, in both sides of the duality, using the static quantum potential within the framework of the gauge-invariant but path-dependent variables formalism. Our calculations show that the interaction energy contains a linear term leading to the confinement of static probe charges.
description: 13 pages, RevTex; correction for a mispelled author, final version to be published in Phys. Lett. B
title: Le phénomène Kac ou les difficultés de l’audace
Creators: name: Desblaches, Claudia
Publisher: name: Savoirs en prisme
Year: 2019

description: Un cas extrême d’innovation à tout crin est présenté par Eduardo Kac, artiste et poète américano-brésilien contemporain dont la carrière évolue depuis l’holopoésie, la poésie numérique (« Letter », 1996) et la biopoésie. Dans ces créations artistiques, l’audace d’Eduardo Kac porte atteinte au confort de lecture habituel, par la mise en place de nouveaux systèmes sémiotiques qui troublent la lecture analogique. Plus marquantes ou scandaleuses, « perfides et déstabilisantes » (Galerie Charlot, 2010) sont ses créations transgéniques microbiennes, animales ou végétales à la valeur éthique discutable jusqu’à sa collaboration artistique et spatiale récente avec Thomas Pesquet (Le Téléscope intérieur, 2017). Bien que produites en partie de manière technologique et technique, les audacieuses œuvres transdisciplinaires de Kac repoussent les limites de l’art. Doit-on chercher leur valeur dans ce que Kac lui-même qualifie de « continuum sémiologique » (Écrire avec le vivant) ou bien dans les possibilités offertes par « l’infranumérique » (Colette Tron) que ses travaux donnent à explorer ?
description: Savoirs en prisme, No. 11 (2019): L'audace : vertu, valeur
Time dependence of advection dominated accretion flow around a rotating compact object
Creators: name: Habibi, Fahimeh
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Time evolution of advection-dominated accretion flow (ADAF) around a rotating compact object is presented. The equations of time-dependent of fluid including the Coriolis force along with the centrifugal and pressure gradient forces are derived. In this research, it is assumed that angular momentum transport is due to viscous turbulence and the α-prescription is used for the kinematic coefficient of viscosity. Moreover, the general relativistic effects are neglected. In order to solve the equations, we have used a self-similar solution. The solutions show that the behaviour of the physical quantities in a dynamical ADAF is different from that for a steady accretion flow. Our results indicate that the physical quantities are dependent of rotation parameter which is defined as the ratio of the intrinsic angular velocity of the central body to the angular velocity of disc. Also, the effect of rotation parameter on these quantities is different for co and counter-rotating flows. The solution shows that by increasing the rotation parameter a, inflow-outflow region approaches the central object for co-rotating flow and moves outward for counter-rotating flow. We find that when flow is fully advection dominated (f ! 1), the entire gas has positive Bernoulli function. Also, we suggest that the Bernoulli function becomes more positive when the effect of rotation on the structure of disc decreases.
Collective Action for Innovation and Small Farmer Market Access: The Papa Andina Experience
Creators: name: Devaux, Andre
name: Velasco, Claudio
name: Lopez, Gaston
name: Bernet, Thomas
name: Ordinola, Miguel
name: Pico, Hernan
name: Thiele, Graham
name: Horton, Douglas
name: Devaux, Andre
name: Velasco, Claudio
name: Lopez, Gaston
name: Bernet, Thomas
name: Ordinola, Miguel
name: Pico, Hernan
name: Thiele, Graham
name: Horton, Douglas
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: collective action
subject: potatoes
subject: Andean region
subject: participatory methods
subject: market chains
subject: innovation
subject: stakeholder platform

description: The Andean highlands are home to some of the poorest rural households in South America. Native potato varieties and local knowledge for their cultivation and use are unique resources possessed by farmers in these areas. As the forces of globalization and market integration penetrate the Andes, they present both challenges and opportunities for farmers there. This paper reports on how the Papa Andina Regional Initiative is promoting the use of collective action to reduce poverty in the Andes, by developing market niches and adding value to potatoes, particularly the native potatoes grown by poor farmers. Since 1998, Papa Andina has worked with partners in Bolivia, Ecuador and Peru to stimulate pro-poor innovation within market chains for potato-based products. Market chain actors (including small-scale potato producers, traders, and processors), researchers, and other service providers have engaged in innovation processes via two principal tools for facilitating collective action: the Participatory Market Chain Approach (PMCA) and Stakeholder Platforms. The PMCA fosters commercial, technological, and institutional innovation through a structured process that builds interest, trust, and collaboration among participants. Stakeholder Platforms provide a space for potato producers, other market chain actors, and service providers to come together to identify their common interests, share knowledge, and develop joint activities. The PMCA and Stakeholder Platforms have empowered Andean potato farmers by expanding their knowledge of markets, market agents, and business opportunities. Social networks built up among producers, market agents, and service providers have stimulated commercial innovation, which in turn has stimulated technical and institutional innovation. These innovations have allowed small farmers to market their potatoes on more favorable terms and other market chain actors to increase their incomes. This paper describes experiences with collective action in Bolivia, Ecuador, and Peru, via the PMCA and Stakeholder Platforms. Based on these experiences, a number of lessons are formulated for using collective action to stimulate innovation, market access, and poverty reduction in other settings.
Rural-urban inequality and equality of opportunity in China : when inequality is desirable
Creators: name: Wong, Cynthia Lok Yee
Publisher: name: University of British Columbia
Year: 2009

description: This paper is a normative study of the rural-urban social and economic inequalities in China. It applies the equality of opportunity principle of distributive justice to the analysis of rural-urban inequalities. The paper argues that the equality of opportunity principle provides the necessary condition in order for inequality to be just, morally acceptable and tolerable. An analysis of the rural-urban social inequalities shows that inequality between the rural and urban people is excessive and intolerable because it is premised on unequal competitive and substantive opportunities in social mobility and unequal capabilities. The paper reaffirms the importance of a human-centered approach to development.
As Soon as Possible but Rationally
Creators: name: Bruyère, Véronique
name: Grandmont, Christophe
name: Raskin, Jean-François
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: This paper addresses complexity problems in rational verification and synthesis for multi-player games played on weighted graphs, where the objective of each player is to minimize the cost of reaching a specific set of target vertices. In these games, one player, referred to as the system, declares his strategy upfront. The other players, composing the environment, then rationally make their moves according to their objectives. The rational behavior of these responding players is captured through two models: they opt for strategies that either represent a Nash equilibrium or lead to a play with a Pareto-optimal cost tuple.
description: Extended version of a CONCUR 2024 paper
High Energy Scattering Amplitudes of Superstring Theory
Creators: name: Chan, Chuan-Tsung
name: Lee, Jen-Chi
name: Yang, Yi
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use three different methods to calculate the proportionality constants among high-energy scattering amplitudes of different string states with polarizations on the scattering plane. These are the decoupling of high-energy zero-norm states (HZNS), the Virasoro constraints and the saddle-point calculation. These calculations are performed at arbitrary but fixed mass level for the NS sector of 10D open superstring. All three methods give the consistent results, which generalize the previous works on the high-energy 26D open bosonic string theory. In addition, we discover new leading order high-energy scattering amplitudes, which are still proportional to the previous ones, with polarizations orthogonal to the scattering plane. These scattering amplitudes are of subleading order in energy for the case of 26D open bosonic string theory. The existence of these new high-energy scattering amplitudes is due to the worldsheet fermion exchange in the correlation functions and is, presumably, related to the high-energy massive spacetime fermionic scattering amplitudes in the R-sector of the theory.
description: 37 pages, no figure, revtex4
Additional file 1 of Insights into the oral health crisis amongst pre-schoolers in Aotearoa/New Zealand: a discourse analysis of parent/caregiver experiences
Creators: name: Roguski, Michael
name: McBride-Henry, Karen
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Focus group schedule. Research on preschool oral health. Focus group schedule that was used in the fieldwork for this research.
title: “Yer a total freak show” : a longitudinal mixed-methods study of illness perceptions, self-identity and health behaviour in working-age Phase IV cardiac rehabilitation attendees and the role of spouses
Creators: name: Nutt, Rachel Anne
Publisher: name: University of St Andrews
Year: 2019

description: Background: Phase IV cardiac rehabilitation (CR) improves outcomes and facilitates behaviour change following myocardial infarction. Although one-third of myocardial infarction (MI) patients in Scotland are under 65 years old, research is lacking in this age group. Aim: To explore the experiences, illness perceptions (Leventhal) and self-identity (Charmaz) of working age (18-65 year olds) individuals attending Phase IV cardiac rehabilitation, including around initiation and maintenance of lifestyle change and the role of spouses. Methods: 16 participants (14 male, 2 female) and 12 spouses (10 female, 2 male) completed nearly 23 hours of semi-structured interviews at the start and end of Phase IV cardiac rehabilitation in Fife and Dundee. Participants completed health behaviour and illness perceptions questionnaires at these time points and after 3 months. Data were integrated and analysed using framework analysis. Results: The MI conflicted with participants’ self-identity. Fear and perceived consequences led to restrictive and protective control behaviour from both participants and spouses. CR aided participants goal of ‘getting back to normal’ - providing safety, monitoring and knowledge reduced fear, allowing return to pre-MI activities and behaviour, both healthy and unhealthy. Perceived cause, communication from health professionals, social influences all impacted health behaviour outcomes, which were varied. Although there were improvements in health behaviour at end of CR, these were not sustained at 3-month follow-up. Identity disruption, mood changes and medication side-effects persisted at 3-month follow-up. Psychological and longer-term support was lacking. Discussion: Cardiac rehabilitation is a time of transition, with experiences and outcomes varying between individuals. Participants and health professionals desired behaviour may conflict. Further research should explore long-term outcomes and opportunities for intervention and support in this group, as well as female attendance and gender. Using longitudinal mixed-methods, and theoretical models provides insight into processes over time but require careful data management and analysis.
Electronic transport across quantum dots in graphene nanoribbons: Toward built-in gap-tunable metal-semiconductor-metal heterojunctions
Creators: name: Čerņevičs, Kristiāns
name: Yazyev, Oleg V.
name: Pizzochero, Michele
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The success of all-graphene electronics is severely hindered by the challenging realization and subsequent integration of semiconducting channels and metallic contacts. Here, we comprehensively investigate the electronic transport across width-modulated heterojunctions consisting of a graphene quantum dot of varying lengths and widths embedded in a pair of armchair-edged metallic nanoribbons, of the kind recently fabricated via on-surface synthesis. We show that the presence of the quantum dot enables the opening of a width-dependent transport gap, thereby yielding built-in one-dimensional metal-semiconductor-metal junctions. Furthermore, we find that, in the vicinity of the band edges, the conductance is subject to a smooth transition from an antiresonant to a resonant transport regime upon increasing the channel length. These results are rationalized in terms of a competition between quantum-confinement effects and quantum dot-to-lead coupling. Overall, our work establishes graphene quantum dot nanoarchitectures as appealing platforms to seamlessly integrate gap-tunable semiconducting channels and metallic contacts into an individual nanoribbon, hence realizing self-contained carbon-based electronic devices.
Collective Action and Marketing of Underutilized Plant Species: The Case of Minor Millets in Kolli Hills, Tamil, Nadu, India
Creators: name: Gruere, Guillaume P.
name: Nagarajan, Latha
name: King, E.D.I. Oliver
name: Gruere, Guillaume P.
name: Nagarajan, Latha
name: King, E.D.I. Oliver
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: underutilized species
subject: agricultural marketing
subject: collective action
subject: agrobiodiversity

description: Minor millets are examples of underutilized plant species, being locally important but rarely traded internationally with an unexploited economic potential. In the Kolli hills of Tamil Nadu, India, a genetically diverse pool of minor millet varieties are grown by the tribal farming communities to meet their subsistence food needs. Most of these minor crops were not traded outside the farming community. Despite a consumption preference among the farming communities for minor millets, in the recent past the acreage under minor millet crops have declined considerably due to the availability of substitute cash crops. As a response, the M.S. Swaminathan Research Foundation (MSSRF) based in Chennai has led targeted conservation cum commercialization intervention programs over the last 7-9 years in the Kolli Hills. In this paper we provide a first evaluation of the success of marketing development for minor millets in the Kolli Hills with a specific focus on collective action and group initiatives undertaken by the women and men self-help groups organized by the concerned non-governmental organization. We analyze the key collective actions that are taking place in the minor millet marketing chain through a series of field visits and focus group discussions with the stakeholders involved. We then compare the role of collective action in this new market with the case of marketing chains for cassava and organic pineapples, two cash crops with an expanding production in Kolli Hills. Our analysis shows the critical role of collective action and group initiative as a necessary but not sufficient condition for the successful commercialization of underutilized plant species for the benefit of the poor and the conservation of agrobiodiversity.
Effects of SO(10)-inspired scalar non-universality on the MSSM parameter space at large tan beta
Creators: name: Ramage, M. R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the parameter space of the (mu > 0, A_0 = 0) CMSSM at large tan beta with a small degree of non-universality originating from D-terms and Higgs-sfermion splitting inspired by SO(10) GUT models. The effects of such non-universalities on the sparticle spectrum and observables such as (g-2)_mu, B(b -> X_s gamma), the SUSY threshold corrections to the bottom mass and Omega_CDM h^2 are examined in detail and the consequences for the allowed parameter space of the model are investigated. We find that even small deviations to universality can result in large qualitative differences compared to the universal case; for certain values of the parameters, we find, even at low m_16, that radiative electroweak symmetry breaking fails as a consequence of either |mu|^2 < 0 or m_(A^0)^2 < 0. We find particularly large departures from the mSugra case for the neutralino relic density, which is sensitive to significant changes in the position and shape of the A^0 resonance and a substantial increase in the Higgsino component of the LSP. However, we find that the corrections to the bottom mass are not sufficient to allow for Yukawa unification.
description: 53 pages, 14 figures, elsart format, some minor corrections, references added
title: La vertu subversive de l’audace chez Hardy (Jude the Obscure) et Fowles (The French Lieutenant’s Woman)
Creators: name: Depriester, Julie
Publisher: name: Savoirs en prisme
Year: 2019

description: Lorsque les règles de la société ou de la littérature deviennent trop étroites, le besoin de changement se fait sentir. L’époque victorienne est particulièrement propice à une telle remise en question. Or, la subversion des codes passe par l’opposition, et donc par la prise de risques. Cet article s’intéresse à la manière dont Thomas Hardy et John Fowles, avec la publication de leur romans respectifs Jude the Obscure et The French Lieutenant’s Woman, ont fait preuve d’audace afin de subvertir les conventions sociales et littéraires de leur époque. Quelle est la mesure de l’évolution apportée par ces deux œuvres, et quelles en sont ses limites ?
description: Savoirs en prisme, No. 11 (2019): L'audace : vertu, valeur
On renormalizability of the massless Thirring model
Creators: name: Bozkaya, H.
name: Ivanov, A. N.
name: Pitschmann, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the renormalizability of the massless Thirring model in terms of the causal fermion Green functions and correlation functions of left-right fermion densities. We obtain the most general expressions for the causal two-point Green function and correlation function of left-right fermion densities with dynamical dimensions of fermion fields, parameterised by two parameters. The region of variation of these parameters is constrained by the positive definiteness of the norms of the wave functions of the states related to components of the fermion vector current. We show that the dynamical dimensions of fermion fields calculated for causal Green functions and correlation functions of left-right fermion densities can be made equal. This implies the renormalizability of the massless Thirring model in the sense that the ultra-violet cut-off dependence, appearing in the causal fermion Green functions and correlation functions of left-right fermion densities, can be removed by renormalization of the wave function of the massless Thirring fermion fields only.
description: 17 pages, Latex, the contribution of fermions with opposite chirality is added,the parameterisation of fermion determinant by two parameters is confirmed,it is shown that dynamical dimensions of fermion fields calculated from different correlation functions can be made equal.This allows to remove the dependence on the ultra-violet cut-off by the renormalization of the wave function of Thirring fermion fields only
Machine learning that predicts well may not learn the correct physical descriptions of glassy systems
Creators: name: Swain, Arabind
name: Ridout, Sean Alexander
name: Nemenman, Ilya
Publisher: name: arXiv
Year: 2024
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The complexity of glasses makes it challenging to explain their dynamics. Machine Learning (ML) has emerged as a promising pathway for understanding glassy dynamics by linking their structural features to rearrangement dynamics. Support Vector Machine (SVM) was one of the first methods used to detect such correlations. Specifically, a certain output of SVMs trained to predict dynamics from structure, the distance from the separating hyperplane, was interpreted as being linearly related to the activation energy for the rearrangement. By numerical analysis of toy models, we explore under which conditions it is possible to infer the energy barrier to rearrangements from the distance to the separating hyperplane. We observe that such successful inference is possible only under very restricted conditions. Typical tests, such as the apparent Arrhenius dependence of the probability of rearrangement on the inferred energy and the temperature, or high cross-validation accuracy do not guarantee success. We propose practical approaches for measuring the quality of the energy inference and for modifying the inferred model to improve the inference, which should be usable in the context of realistic datasets.
description: 11 pages, 7 figures
Vegetation cover mitigates the economic impacts of warming
Creators: name: Damette, Olivier
name: Kotz, Maximilian
name: Wenz, Leonie
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Climate Change/economics
subject: Vegetation

description: # Data and Code for the Publication "Vegetation cover mitigates the economic impacts of warming"

## Structure

- Base folder `/` includes the main Stata `.do` file to replicate all regression tables and a Python script for figure generation.- File `base_pnas2.dta` contains the cleaned panel dataset used for all estimations.- File `Vegetation_code_finalf.do` is the Stata script that reproduces all tables (Table 1 and Supplementary Tables S1 to S5).- File `matrices2.xlsx` provides the basis for calculating marginal effects, including vegetation and temperature interaction terms.- Figures (`ME_FIG2.png`, `NDVI_MEs_mapped2.png`) are generated using the Python script.   ## 1) Replication of Results

- Open Stata.- Run the file `Vegetation_code_finalf.do` to reproduce:  - Main Table 1 (baseline specification),  - Robustness checks (Table S1),  - Alternative standard errors (Table S2),  - Extreme heat specifications (Table S3),  - Alternative vegetation measures (Table S4),  - Heterogeneous effects by vegetation types (Tables S5A–S5C).

## 2) Marginal Effects and Visualizations

- Open Python (preferably in a Jupyter environment).- Use the Excel file `matrices2.xlsx` to extract interaction coefficients and standard errors.- The marginal effects and plotting of conditional effects are handled in a separate Python script.

## 3) Figures

- `ME_FIG2.png` shows the main marginal effect of temperature conditional on vegetation.- `NDVI_MEs_mapped2.png` maps the spatial heterogeneity of marginal effects using NDVI and temperature coefficients.
title: De Falcó à Pérez Reverte, l’audace comme un outil d’émancipation
Creators: name: Martin, Jean-Christophe
Publisher: name: Savoirs en prisme
Year: 2019

description: À partir d’un cadre théorique psychanalytique, l’article aborde la question de l’audace dans la trilogie de Falcó d’Arturo Pérez Reverte. Le conflit entre diverses instances du Moi libère l’héritage narcissique maternel dont s’alimente l’audace du héros. Celui-ci s’émancipe alors d’un contexte étouffant de pouvoir pour s’y opposer à l’envi, selon son bon vouloir, et pour réaliser ses désirs érotiques ou d’ambition. L’auteur n’est évidemment pas étranger à ce processus, tant du point de vue de sa création que de son expérience personnelle.
description: Savoirs en prisme, No. 11 (2019): L'audace : vertu, valeur
Competing associations in six-species predator-prey models
Creators: name: Szabo, Gyorgy
Publisher: name: arXiv
Year: 2004
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: We study a set of six-species ecological models where each species has two predators and two preys. On a square lattice the time evolution is governed by iterated invasions between the neighboring predator-prey pairs chosen at random and by a site exchange with a probability Xs between the neutral pairs. These models involve the possibility of spontaneous formation of different defensive alliances whose members protect each other from the external invaders. The Monte Carlo simulations show a surprisingly rich variety of the stable spatial distributions of species and subsequent phase transitions when tuning the control parameter Xs. These very simple models are able to demonstrate that the competition between these associations influences their composition. Sometimes the dominant association is developed via a domain growth. In other cases larger and larger invasion processes preceed the prevalence of one of the stable asociations. Under some conditions the survival of all the species can be maintained by the cyclic dominance occuring between these associations.
description: 8 pages, 9 figures
Additional file 1 of Community memory screening as a strategy for recruiting older adults into Alzheimer’s disease research
Creators: name: Peavy, Guerry M.
name: Jenkins, Cecily W.
name: Little, Emily A.
name: Gigliotti, Christina
name: Calcetas, Amanda
name: Edland, Steven D.
name: Brewer, James B.
name: Galasko, Douglas
name: Salmon, David P.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Hematology

description: Additional file 1 : Supplementary material (Table S1) accompanies this paper.
Discrete time-crystals in unbounded potentials
Creators: name: Lev, Yevgeny Bar
name: Lazarides, Achilleas
Publisher: name: arXiv
Year: 2024
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Discrete time crystalline phases have attracted significant theoretical and experimental attention in the last few years. Such systems require a seemingly impossible combination of nonadiabatic driving and a finite-entropy long-time state, which, surprisingly, is possible in nonergodic systems. Previous works have often relied on disorder for the required nonergodicity; here, we describe the construction of a discrete time crystal (DTC) phase in nondisordered, nonintegrable Ising-type systems. After discussing the conditions for interacting and periodically driven systems to display such phases in general, we propose a concrete model and then provide approximate analytical arguments and direct numerical evidence that it satisfies the conditions and displays a DTC phase robust to local periodic perturbations.
description: 5 pages, 3 figures
Theoretical Overview: The New Mesons
Creators: name: Quigg, Chris
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: After commenting on the state of contemporary hadronic physics and spectroscopy, I highlight four areas where the action is: searching for the relevant degrees of freedom, mesons with beauty and charm, chiral symmetry and the D_{sJ} levels, and X(3872) and the lost tribes of charmonium.
description: 10 pages, uses jpconf.cls; talk at First Meeting of the APS Topical Group on Hadronic Physics
On the absence of a universal surface density, and a maximum Newtonian acceleration in dark matter haloes: consequences for MOND
Creators: name: Zhou, Yong
name: Del Popolo, A.
name: Chang, Zhe
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the dark matter (DM) surface density using the SPARC sample and {compare} it to Donato et al. (2009) result. By means of MCMC method, we infer the best-fitting parameters for each galaxy. We reobtain the scaling relation between the surface density and luminosity, and several other scaling laws relating the dark matter halo properties to that of the galactic disc properties. We conclude, in contrast with Donato et al. \cite{Donato}, that the dark matter surface density is not a universal (constant) quantity but correlates with the luminosity as well as with other galactic disc properties. A derived posterior probability distribution of $ρ_0 r_0$ shows that the null hypothesis of constancy is rejected at a very high confidence level. These results leave little room for the claimed universality of dark matter surface density. Since MOND has strong prediction on the surface density \cite{Milgrom2009}, we compared our result with those predictions, finding that MOND predictions are violated by data. To strengthen the previous result, we compared our results to another prediction of MOND (Milgrom 2005), the existence of a maximum Newtonian dark matter acceleration in the halo. Also in this case, MOND predictions are in contradiction with data. The dark matter Newtonian acceleration correlates with all the previously presented galactic disc properties, and data are distributed outside the bound predicted by Milgrom $\&$ Sanders (Milgrom 2005). We also find that the null hypothesis (constancy of DM Newtonian acceleration) is rejected at a very high confidence level.
description: 17 pages; 4 figures; Published in Physics of the Dark Universe 28 (2020) 100468
Acute dose-response exposure of a peracetic acid-based disinfectant to Atlantic salmon parr reared in RAS
Creators: name: Mota, Vasco
name: Eggen, Maia
name: Lazado, Carlo
Publisher: name: Zenodo
Year: 2024

description: D3.5c_CP_Acute dose-response exposure of a peracetic acid-based disinfectant to Atlantic salmon parr reared in RAS