cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Electric fields and substrates dramatically accelerate spin relaxation in graphene
Creators: name: Habib, Adela
name: Xu, Junqing
name: Ping, Yuan
name: Sundararaman, Ravishankar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Electrons in graphene are theoretically expected to retain spin states much longer than most materials, making graphene a promising platform for spintronics and quantum information technologies. Here, we use first-principles density-matrix (FPDM) dynamics simulations to show that interaction with electric fields and substrates strongly enhance spin relaxation through scattering with phonons. Consequently, the relaxation time at room temperature reduces from microseconds in free-standing graphene to nanoseconds in graphene on hexagonal boron nitride (hBN) substrate, the order of magnitude typically measured in experiments. Further, inversion symmetry breaking by hBN introduces a stronger asymmetry in electron and hole spin lifetimes, than predicted by the conventional D'yakonov-Perel' (DP) model for spin relaxation. Deviations from the conventional DP model are stronger for in-plane spin relaxation, resulting in out-of-plane to in-plane lifetime ratios much greater than 1/2 with a maximum close to the Dirac point. These FPDM results, independent of symmetry-specific assumptions or material-dependent parameters, also validate recent modifications of the DP model to explain such deviations. Overall, our results indicate that spin-phonon relaxation in the presence of substrates may be more important in graphene than typically assumed, requiring consideration for graphene-based spin technologies at room temperature.
description: 9 pages, 6 figures
Cross-Cultural Research between Mongolia, Japan, and Canada on Perception and Cognition: Comparing Historically Nomadic-Pastoral vs Sedentary Societies
Creators: Masuda, Takahiko
Publisher: name: University of Alberta Library
Year: 2022

SSHRC IG awarded 2023: Existing cultural psychology literature suggests variations in psychological processes between East Asians and North Americans under the rubric of independent vs. interdependent social orientation. However, scholars have called for the necessity of globalizing research sites beyond the East vs. West dichotomy. To enrich the cultural database, the proposed project examines the psychological processes of Mongolians and contrasts them with Japanese and Canadians of European Descent, who belong to sedentary societies. Using a series of empirical studies in Japan, Canada, and urban and rural Mongolia, this research aims to investigate important cultural differences in perception (visual attention) and cognition (levels of self-assertion, and patterns of emotional experiences, human inference, causal attribution, and categorization).
การเปลี่ยนผ่านสู่ดิจิทัลของการพัฒนาทรัพยากรมนุษย์
Creators: name: กฤตพลลภ์ คิรินทร์
Publisher: name: Office of Academic Resources
Year: 2023
Subjects: digital transformation
human resource development
การเปลี่ยนผ่านสู่ดิจิทัล
การพัฒนาทรัพยากรมนุษย์

description: Journal of Information and Learning, 34, 3, 154-165
Heptapterus sympterygium Buckup 1988
Creators: name: Koerber, Stefan
name: Litz, Thomas O.
name: Serra, Wilson S.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Siluriformes
Heptapteridae
Heptapterus
Heptapterus sympterygium

description: H. sympterygium Buckup, 1988
first record from Uruguay info
published in Loureiro et al. (2013)
sub Heptapterus sympterigium
description: Published as part of Koerber, Stefan, Litz, Thomas O. & Serra, Wilson S., 2023, CLOFFUY - update 5 - supplement to Checklist of the Freshwater Fishes of Uruguay., pp. 1-13 in Ichthyological Contributions of PecesCriollos 83 on page 8, DOI: 10.5281/zenodo.11558471
Lexical elicitation
Creators: name: Silva, Cecile
name: Gamble, Geoffrey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024
Subjects: subject: yok

description: 2 WAV files. Side 1 (July 19): road, human, bread, blood, house, mouth, eye, cat, dirt, story, fire (notebook 4, pp. 50-57). Side 2 (July 17): body, gooseberry, cold, father, stick, hand, sieve, rock, doctor, find, snow, cloud, fog (4, pp. 58-66). Page 60 of notebook not recorded.
Managing for landscape patterns in the sub-boreal forests of British Columbia
Creators: name: Andison, David W.
Publisher: name: University of British Columbia
Year: 2009

description: Forest managers in North America are attempting to incorporate a growing number of ecological issues across many different temporal and spatial scales. In response, the traditional approach of managing for individual or groups of species and/or functions, is giving way to managing for a more natural time-space array of natural resources. Better known as "landscape management", the strategy relies heavily on understanding the historical, "natural" processes and patterns at the landscape level. The objective of this dissertation is to develop a better understanding of the natural landscape-level dynamics of a fire dominated landscape in northern British Columbia. The age-class distribution was used to show that stand replacing fires had a fire cycle of 80-100 years. Although stands much older than this average persist, there was strong evidence to suggest that very old stands become more susceptible to some form of disturbance. The most striking feature of the age-class distribution was its lack of stability. Although the vast majority of disturbances were very small, and simple in shape, most of the landscape was comprised of very large disturbances. Forest fires were significantly more active in areas with the driest soils. It was also suggested that fire activity may be higher on south and west-facing slopes. Information from the disturbance regime description was incorporated into a spatially explicit landscape model to create multiple landscape scenes of a "natural" disturbance regime. Disturbance size limits and age eligibility restrictions were then imposed in simulation. Generally as size and age restrictions increased, interior forest area decreased, edge density increased, age-class distribution favoured younger forests, spatial diversity increased, and temporal diversity decreased. The detailed results demonstrated the importance of using a variety of pattern metrics, in different forms, to grasp the full impacts of each type and degree of restriction. The two methods of investigating sub-boreal landscape dynamics used in this research demonstrated the dangers of using single landscape "snapshots" to represent "natural" conditions. It also raises important questions with respect to the wisdom of management practices which artificially stabilize both spatial and temporal attributes of landscapes.
Highly Active Nanoperovskite Catalysts for Oxygen Evolution Reaction: Insights into Activity and Stability of Ba0.5Sr0.5Co0.8Fe0.2O3 and PrBaCo2O6
Creators: name: Kim, Bae Jung
name: Cheng, Xi
name: Abbott, Daniel
name: Fabbri, Emiliana
name: Bozza, Francesco
name: Graule, Thomas
name: Castelli, Ivano
name: Wiles, Luke
name: Danilovic, Nemanja
name: Ayers, Katherine
name: Marzari, Nicola
name: Schmidt, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: It is shown that producing PrBaCo2O5 and Ba0.5Sr0.5Co0.8Fe0.2O3 nanoparticle by a scalable synthesis method leads to high mass activities for the oxygen evolution reaction with outstanding improvements by 10 and 50 times, respectively, compared to those prepared via the state of the art synthesis method. Here, detailed comparisons at both laboratory and industrial scales show that Ba0.5Sr0.5Co0.8Fe0.2O3 appears to be the most active and stable perovskite catalyst under alkaline conditions, while PrBaCo2O6 reveals thermodynamic instability described by the density functional theory based Pourbaix diagrams highlighting cation dissolution under oxygen evolution conditions. Operando Xray absorption spectroscopy is used in parallel to monitor electronic and structural changes of the catalysts during oxygen evolution reaction. The exceptional BSCF functional stability can be correlated to its thermodynamic metastability under oxygen evolution conditions as highlighted by Pourbaix diagram analysis. BSCF is able to dynamically self reconstruct its surface, leading to formation of Co based oxyhydroxide layers while retaining its structural stability. Differently, PBCO demonstrates a high initial oxygen evolution reaction activity while it undergoes a degradation process considering its thermodynamic instability under oxygen evolution conditions as anticipated by its Pourbaix diagram. Overall, this work demonstrates a synergetic approach of using both experimental and theoretical studies to understand the behavior of perovskite catalysts.
สมรรถนะหลักของแรงงานในธุรกิจอุตสาหกรรมดิจิทัล
Creators: name: ราชวิทย์ ทิพย์เสนา
Publisher: name: Office of Academic Resources
Year: 2023
Subjects: core competency
workforce
organization
business
digital industry
สมรรถนะหลัก
แรงงาน
องค์กร
ธุรกิจ
อุตสาหกรรมดิจิทัล

description: Journal of Information and Learning, 34, 3, 166-178
Structured hetero-symmetric quantum droplets
Creators: name: Kartashov, Yaroslav V.
name: Malomed, Boris A.
name: Torner, Lluis
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We predict that Lee-Huang-Yang effect makes it possible to create stable quantum droplets (QDs) in binary Bose-Einstein condensates with a hetero-symmetric or hetero-multipole structure, i.e., different vorticities or multipolarities in their components. The QDs feature flat-top shapes when either chemical potential μ_1,2 of the droplet approaches an edge of a triangular existence domain in the (μ_1,μ_2) plane. QDs with different vorticities of their components are stable against azimuthal perturbations, provided that the norm of one component is large. We also present multipole states, in which the interaction with a strong fundamental component balances the repulsion between poles with opposite signs in the other component, leading to the formation of stable bound states. Extended stability domains are obtained for dipole QDs; tripole ones exist but are unstable, while quadrupoles are stable in a narrow region. The results uncover the existence of much richer families of stable binary QDs in comparison to states with identical components.
description: 6 pages, 5 figures, to appear in Physical Review Research
Anticipation and Negative Group Delay in a Retina
Creators: name: Chou, Po-Yu
name: Chien, Jo-Fan
name: Chen, Kevin Sean
name: Huang, Yu-Ting
name: Chen, Chun-Chung
name: Chan, C. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: The mechanism of negative group delay (NGD) is used to understand the anticipatory capability of a retina. Experiments with retinas from bull frogs are performed to compare with the predictions of the NGD model. In particulars, whole field stochastic stimulation with various time correlations are used to probe anticipatory responses from the retina. We find that the NGD model can reproduce essential features of experimental observations characterized by the cross correlations between the stimulation and the retinal responses. The prediction horizon of a retina is found to depend on the correlation time of the stimulation as predicted by the NGD model. Experiments with dark and bright Gaussian light pulses further support the NGD mechanism; but only for the dark pulses indicating that the NGD effect of a retina might originate from its OFF response. Our finding suggests that sensory systems capable of using negative feedback for adaptation can give rise to anticipation as a consequence of the delay in the system.
Imparfinis mishky Almiron, Casciotta, Bechara, Ruiz Diaz, Bruno, D'Ambrosio, Solimano & Soneira 2007
Creators: name: Koerber, Stefan
name: Litz, Thomas O.
name: Serra, Wilson S.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Siluriformes
Heptapteridae
Imparfinis
Imparfinis mishky

description: I. mishky Almirón, Casciotta, Bechara, Ruíz Díaz, Bruno, D’Ambrosio, Solimano & Soneira, 2007
first record from Uruguay info
published in Serra et al. (2014)
description: Published as part of Koerber, Stefan, Litz, Thomas O. & Serra, Wilson S., 2023, CLOFFUY - update 5 - supplement to Checklist of the Freshwater Fishes of Uruguay., pp. 1-13 in Ichthyological Contributions of PecesCriollos 83 on page 8, DOI: 10.5281/zenodo.11558471
Power-Bandwidth Tradeoff in Dense Multi-Antenna Relay Networks
Creators: name: Oyman, Ozgur
name: Paulraj, Arogyaswami J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We consider a dense fading multi-user network with multiple active multi-antenna source-destination pair terminals communicating simultaneously through a large common set of $K$ multi-antenna relay terminals in the full spatial multiplexing mode. We use Shannon-theoretic tools to analyze the tradeoff between energy efficiency and spectral efficiency (known as the power- bandwidth tradeoff) in meaningful asymptotic regimes of signal-to-noise ratio (SNR) and network size. We design linear distributed multi-antenna relay beamforming (LDMRB) schemes that exploit the spatial signature of multi-user interference and characterize their power-bandwidth tradeoff under a system wide power constraint on source and relay transmissions. The impact of multiple users, multiple relays and multiple antennas on the key performance measures of the high and low SNR regimes is investigated in order to shed new light on the possible reduction in power and bandwidth requirements through the usage of such practical relay cooperation techniques. Our results indicate that point-to-point coded multi-user networks supported by distributed relay beamforming techniques yield enhanced energy efficiency and spectral efficiency, and with appropriate signaling and sufficient antenna degrees of freedom, can achieve asymptotically optimal power-bandwidth tradeoff with the best possible (i.e., as in the cutset bound) energy scaling of $K^{-1}$ and the best possible spectral efficiency slope at any SNR for large number of relay terminals.
description: 12 pages, to appear in IEEE Transactions on Wireless Communications
Parapimelodus nigribarbis
Creators: name: Koerber, Stefan
name: Litz, Thomas O.
name: Serra, Wilson S.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Siluriformes
Pimelodidae
Parapimelodus
Parapimelodus nigribarbis

description: P. nigribarbis (Boulenger, 1889)
Pimelodus nigribarbis Boulenger, 1889
first record from Uruguay info
published in Loureiro et al. (2013)
description: Published as part of Koerber, Stefan, Litz, Thomas O. & Serra, Wilson S., 2023, CLOFFUY - update 5 - supplement to Checklist of the Freshwater Fishes of Uruguay., pp. 1-13 in Ichthyological Contributions of PecesCriollos 83 on page 8, DOI: 10.5281/zenodo.11558471
More crime in cities? On the scaling laws of crime and the inadequacy of per capita rankings -- a cross-country study
Creators: name: Oliveira, Marcos
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Computers and Society (cs.CY)
subject: Applications (stat.AP)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Crime rates per capita are used virtually everywhere to rank and compare cities. However, their usage relies on a strong linear assumption that crime increases at the same pace as the number of people in a region. In this paper, we demonstrate that using per capita rates to rank cities can produce substantially different rankings from rankings adjusted for population size. We analyze the population-crime relationship in cities across 12 countries and assess the impact of per capita measurements on crime analyses, depending on the type of offense. In most countries, we find that theft increases superlinearly with population size, whereas burglary increases linearly. Our results reveal that per capita rankings can differ from population-adjusted rankings such that they disagree in approximately half of the top 10 most dangerous cities in the data analysed here. Hence, we advise caution when using crime rates per capita to rank cities and recommend evaluating the linear plausibility before doing so.
description: 21 pages, 5 figures
Embedding quantum statistical excitations in a classical force field
Creators: name: Atlas, Susan R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Quantum-mechanically-driven charge polarization and charge transfer are ubiquitous in biomolecular systems, controlling reaction rates, allosteric interactions, ligand-protein binding, membrane transport, and dynamically-driven structural transformations. Molecular dynamics (MD) simulations of these processes require quantum mechanical (QM) information in order to accurately describe their reactive dynamics. However, current techniques -- empirical force fields, subsystem approaches, ab initio MD, and machine learning -- vary in their ability to achieve a consistent chemical description across multiple atom types, and at scale. Here we present a physics-based, atomistic force field, the ensemble DFT charge-transfer embedded-atom method, in which QM forces are described at a uniform level of theory across all atoms, avoiding the need for explicit solution of the Schrödinger equation or large, precomputed training datasets. Coupling between the electronic and atomistic length scales is effected through an ensemble density functional theory formulation of the embedded atom method originally developed for elemental materials. Charge transfer is expressed in terms of ensembles of ionic states basis densities of individual atoms, and charge polarization, in terms of atomic excited state basis densities. This provides a highly compact yet general representation of the force field, encompassing both local and system-wide effects. Charge rearrangement is realized through the evolution of ensemble weights, adjusted at each dynamical timestep via chemical potential equalization.
description: 17 pages, 3 figures. Submitted
Pimelodus argenteus Perugia 1891
Creators: name: Koerber, Stefan
name: Litz, Thomas O.
name: Serra, Wilson S.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Siluriformes
Pimelodidae
Pimelodus
Pimelodus argenteus

description: P. argenteus Perugia, 1891
Pimelodus argenteus Perugia, 1891
Pimelodus brevis Marini, Nichols & La Monte, 1933
P. brevis is a jr. synonym info
published in Rocha & Pavanelli (2014)
description: Published as part of Koerber, Stefan, Litz, Thomas O. & Serra, Wilson S., 2023, CLOFFUY - update 5 - supplement to Checklist of the Freshwater Fishes of Uruguay., pp. 1-13 in Ichthyological Contributions of PecesCriollos 83 on page 8, DOI: 10.5281/zenodo.11558471
Gymnogeophagus mekinos Malabarba, Malabarba & Reis 2015
Creators: name: Koerber, Stefan
name: Litz, Thomas O.
name: Serra, Wilson S.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Perciformes
Cichlidae
Gymnogeophagus
Gymnogeophagus mekinos

description: G. mekinos Malabarba, Malabarba & Reis, 2015
new species from Uruguay info
published in Malabarba et al. (2015)
description: Published as part of Koerber, Stefan, Litz, Thomas O. & Serra, Wilson S., 2023, CLOFFUY - update 5 - supplement to Checklist of the Freshwater Fishes of Uruguay., pp. 1-13 in Ichthyological Contributions of PecesCriollos 83 on page 9, DOI: 10.5281/zenodo.11558471
Motional Quantum States of Surface Electrons on Liquid Helium in a Tilted Magnetic Field
Creators: name: Zadorozhko, A. A.
name: Chen, J.
name: Chepelianskii, A. D.
name: Konstantinov, D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Jaynes-Cummings model (JCM), one of the paradigms of quantum electrodynamics, was introduced to describe interaction between light and a fictitious two-level atom. Recently it was suggested that the JCM Hamiltonian can be invoked to describe the motional states of electrons trapped on the surface of liquid helium and subjected to a constant uniform magnetic field tilted with respect to the surface [Yunusova et al. Phys. Rev. Lett. 122, 176802 (2019)]. In this case, the surface-bound (Rydberg) states of an electron are coupled to the electron cyclotron motion by the in-plane component of tilted field. Here we investigate, both theoretically and experimentally, the spectroscopic properties of surface electrons in a tilted magnetic field and demonstrate that such a system exhibits a variety of phenomena common to the light dressed states of atomic and molecular systems. This shows that electrons on helium realize a prototypical atomic system where interaction between components can be engineered and controlled by simple means and with high accuracy, and which therefore can be potentially used as a new flexible platform for quantum experiments. Our work introduces a pure condensed-matter system of electrons on helium into the context of atomic, molecular and optical physics.
description: 14 pages, 11 figures
Inverse Compton Scattering of Radiation from a Central Source as a Possible Mechanism for the Formation of X-Ray Radiation from Kiloparsec Jets of Core-Dominated Quasars
Creators: name: Butuzova, M. S.
name: Pushkarev, A. B.
name: Shablovinskaya, E. S.
name: Nazarov, S. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: For the interpretation of X-ray radiation from kiloparsec jets of quasars, the inverse Compton scattering of the cosmic microwave background has been widely used for almost 20 years. A recent analysis of the Fermi-LAT observational data showed that this assumption is inapplicable for jets of several quasars. In this paper, we consider the inverse Compton scattering of photons from a central source as a possible mechanism for the formation of X-ray radiation from kiloparsec jets of the quasars PKS 0637-752, 3C 273, PKS 1510-089, and PKS 1045-188. Estimates for the angle between the line of sight and the velocity of kiloparsec-scale jets are obtained. The predicted gamma-ray flux for all objects turned out to be below the upper limit on the flux from a kiloparsec jet obtained from the Fermi-LAT data. It is shown that our assumption about the mechanism of kiloparsec jets X-ray radiation is consistent with all data of multiwavelength observations available to date.
description: 22 pages, 15 figures, 8 tables
An intervention to manage compassion fatigue in oncology nurses in Durban, South Africa
Creators: name: Wentzel, Dorien L
name: Collins, Anthony
name: Brysiewicz, Petra
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 4203
subject: Health services and systems

description: Background: Oncology nurses are involved through the often protracted and potentially traumatic continuum of diagnosis and treatment of their patients, which places them at high risk of developing compassion fatigue.Aim: The aim of the study was to develop and implement an in-facility intervention to manage compassion fatigue among oncology nurses in Durban, South Africa.Setting: The study was conducted with oncology nurses at state, private (private health insurance) and non-governmental oncology facilities (Hospice).Methods: The Self-Care Intervention for Oncology Nurses was developed and implemented using action research with a mixed methods sequential explanatory design. It involved an integrative review, Professional Quality of Life (ProQOL) v 5 questionnaires (n = 83) and in-depth individual interviews (n = 8).Results: Developed from the findings of the integrative review, quantitative and qualitative data, the Self-Care Intervention for Oncology Nurses comprised three components, namely psycho-education on risks (booklet), practices of remembrance (remembrance tree) and support structures (support group and follow-up family call). Overall, the participants enjoyed reading the booklet and engaging in the support group. There were varied responses to the remembrance tree and hesitancy to partaking in the follow-up phone call.Conclusion: The developed intervention could encourage awareness of compassion fatigue amongst oncology nurses’ engagement in self-care practices such as symbolic remembrance of patients and recognition of the value of support structures.Contribution: The intervention may assist oncology nurses in the provision of compassionate caring for their patients and potentially minimise compassion fatigue.
On compatibility of string effective action with an accelerating universe
Creators: name: Neupane, Ishwaree P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we fully investigate the cosmological effects of the moduli dependent one-loop corrections to the gravitational couplings of the string effective action to explain the cosmic acceleration problem in early (and/or late) universe. These corrections comprise a Gauss-Bonnet (GB) invariant multiplied by universal non-trivial functions of the common modulus $σ$ and the dilaton $ϕ$. The model exhibits several features of cosmological interest, including the transition between deceleration and acceleration phases. By considering some phenomenologically motivated ansatzs for one of the scalars and/or the scale factor (of the universe), we also construct a number of interesting inflationary potentials. In all examples under consideration, we find that the model leads only to a standard inflation ($w \geq -1$) when the numerical coefficient $δ$ associated with modulus-GB coupling is positive, while the model can lead also to a non-standard inflation ($w -1$ phases, while this is possible with non-trivial GB couplings, even for constant dilaton phase of the standard picture. Within our model, after a sufficient amount of e-folds of expansion, the rolling of both fields $ϕ$ and $σ$ can be small. In turn, any possible violation of equivalence principle or deviations from the standard general relativity may be small enough to easily satisfy all astrophysical and cosmological constraints.
description: 30 pages, 8 figures; v2 significant changes in notations, appendix and refs added; v3 significant revisions, refs added; v4 appendix extended, new refs, published version
Consequent agentive forms, lexical elicitation
Creators: name: Silva, Cecile
name: Gamble, Geoffrey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024
Subjects: subject: yok

description: 2 WAV files. Side 1: consequent agentive forms; look out, catch, pound (notebook 4, pp. 24-27). Side 2: mix, wake up, run, doctor (4, pp. 27-31). Page 31 of notebook not recorded.
MODEL-FREE ALGORITHMS FOR CONSTRAINED REINFORCEMENT LEARNING IN DISCOUNTED AND AVERAGE REWARD SETTINGS
Creators: name: Bai, Qinbo
Publisher: name: Purdue University Graduate School
Year: 2024
Subjects: classificationCode: 461105
subject: Reinforcement learning
classificationCode: 490304
subject: Optimisation
classificationCode: 490510
subject: Stochastic analysis and modelling

description: Reinforcement learning (RL), which aims to train an agent to maximize its accumulated reward through time, has attracted much attention in recent years. Mathematically, RL is modeled as a Markov Decision Process, where the agent interacts with the environment step by step. In practice, RL has been applied to autonomous driving, robotics, recommendation systems, and financial management. Although RL has been greatly studied in the literature, most proposed algorithms are model-based, which requires estimating the transition kernel. To this end, we begin to study the sample efficient model-free algorithms under different settings.Firstly, we propose a conservative stochastic primal-dual algorithm in the infinite horizon discounted reward setting. The proposed algorithm converts the original problem from policy space to the occupancy measure space, which makes the non-convex problem linear. Then, we advocate the use of a randomized primal-dual approach to achieve O(\eps^-2) sample complexity, which matches the lower bound.However, when it comes to the infinite horizon average reward setting, the problem becomes more challenging since the environment interaction never ends and can’t be reset, which makes reward samples not independent anymore. To solve this, we design an epoch-based policy-gradient algorithm. In each epoch, the whole trajectory is divided into multiple sub-trajectories with an interval between each two of them. Such intervals are long enough so that the reward samples are asymptotically independent. By controlling the length of trajectory and intervals, we obtain a good gradient estimator and prove the proposed algorithm achieves O(T^3/4) regret bound.
Gymnogeophagus peliochelynion Turcati, Serra-Alanis & Malabarba 2018
Creators: name: Koerber, Stefan
name: Litz, Thomas O.
name: Serra, Wilson S.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Perciformes
Cichlidae
Gymnogeophagus
Gymnogeophagus peliochelynion

description: G. peliochelynion Turcati, Serra-Alanis & Malabarba, 2018
new species from Uruguay info
published in Turcati et al. (2018)
description: Published as part of Koerber, Stefan, Litz, Thomas O. & Serra, Wilson S., 2023, CLOFFUY - update 5 - supplement to Checklist of the Freshwater Fishes of Uruguay., pp. 1-13 in Ichthyological Contributions of PecesCriollos 83 on page 9, DOI: 10.5281/zenodo.11558471
High spin particles with spin-mass coupling
Creators: name: Daszkiewicz, Marcin
name: Hasiewicz, Zbigniew
name: Walczyk, Cezary J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The classical and quantum model of high spin particles is proposed and analyzed in this paper. The covariant quantization leads to the spectrum of the particles with the masses correlated with their spins. The particles (and anti-particles) appear to be orphaned as their potential anti-particle partners are of different mass.
description: 11 pages, 1 figure, the paper accepted for publication in Advances in Applied Clifford Algebra
Understanding the role of threading dislocations on 4H-SiC MOSFET breakdown under high temperature reverse bias stress
Creators: name: Fiorenza, P.
name: Alessandrino, M.
name: Carbone, B.
name: Di Martino, C.
name: Russo, A.
name: Saggio, M.
name: Venuto, C.
name: Zanetti, E.
name: Giannazzo, F.
name: Roccaforte, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The origin of dielectric breakdown was studied on 4H-SiC MOSFETs that failed after three months of high temperature reverse bias (HTRB) stress. A local inspection of the failed devices demonstrated the presence of a threading dislocation (TD) at the breakdown location. The nanoscale origin of the dielectric breakdown was highlighted with advanced high-spatial-resolution scanning probe microscopy (SPM) techniques. In particular, SPM revealed the conductive nature of the TD and a local increase of the minority carrier concentration close to the defect. Numerical simulations estimated a hole concentration 13 orders of magnitude larger than in the ideal 4H-SiC crystal. The hole injection in specific regions of the device explained the failure of the gate oxide under stress. In this way, the key role of the TD in the dielectric breakdown of 4H-SiC MOSFET was unambiguously demonstrated.
Gymnogeophagus pseudolabiatus Malabarba, Malabarba & Reis 2015
Creators: name: Koerber, Stefan
name: Litz, Thomas O.
name: Serra, Wilson S.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Perciformes
Cichlidae
Gymnogeophagus
Gymnogeophagus pseudolabiatus

description: G. pseudolabiatus Malabarba, Malabarba & Reis, 2015
new species from Uruguay info
published in Malabarba et al. (2015)
description: Published as part of Koerber, Stefan, Litz, Thomas O. & Serra, Wilson S., 2023, CLOFFUY - update 5 - supplement to Checklist of the Freshwater Fishes of Uruguay., pp. 1-13 in Ichthyological Contributions of PecesCriollos 83 on page 9, DOI: 10.5281/zenodo.11558471
Eye movements are not optimal: People simply employ reasonable but idiosyncratic search strategies
Creators: name: Stuijfzand, Bobby
name: Baddeley, Roland
name: Browne, William
Publisher: name: F1000Research
Year: 2015

description: The ideal searcher framework postulates that during visual search the observer directs attention in order to maximise knowledge on a target’s location, taking into account retinal sensitivity. As the human visual field maintains high resolution further horizontally than vertically an implication is that humans are likely to exhibit many short eye-movements in an approximately horizontal direction and then make an occasional jump vertically. This particular behaviour has been observed previously in a visual search task by Najemnik and Geisler (2005, 2008). We tested this hypothesis by repeating their search task, and, as their data was based on two participants, we increased the number of participants in order to assess whether this behaviour is a general strategy across participants. We took a novel analytical approach by using Hidden Markov Models, allowing for the identification of clusters (i.e., horizontal short saccades and vertical long saccades) in the data, as well as the transitions between clusters. Results however showed the two expected clusters could not be identified from the full dataset. Rather we found that strategies vary across participants. Based on these results we theorise that reinforcement may have influenced the predominance of particular eye-movements. We present some initial results investigating this hypothesis.
Opportunities of Federated Learning in Connected, Cooperative and Automated Industrial Systems
Creators: name: Savazzi, Stefano
name: Nicoli, Monica
name: Bennis, Mehdi
name: Kianoush, Sanaz
name: Barbieri, Luca
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Next-generation autonomous and networked industrial systems (i.e., robots, vehicles, drones) have driven advances in ultra-reliable, low latency communications (URLLC) and computing. These networked multi-agent systems require fast, communication-efficient and distributed machine learning (ML) to provide mission critical control functionalities. Distributed ML techniques, including federated learning (FL), represent a mushrooming multidisciplinary research area weaving in sensing, communication and learning. FL enables continual model training in distributed wireless systems: rather than fusing raw data samples at a centralized server, FL leverages a cooperative fusion approach where networked agents, connected via URLLC, act as distributed learners that periodically exchange their locally trained model parameters. This article explores emerging opportunities of FL for the next-generation networked industrial systems. Open problems are discussed, focusing on cooperative driving in connected automated vehicles and collaborative robotics in smart manufacturing.
description: The paper has been accepted for publication in the IEEE Communications Magazine. The current arXiv contains an additional Appendix that describes the dataset for the setup of Fig. 5
Simulation of neutron background for a dark matter search experiment at JUSL
Creators: name: Banik, S.
name: Kashyap, V. K. S.
name: Ghosh, S.
name: Dutta, S.
name: Mohanty, B.
name: K., Meghna K.
name: Bhattacharjee, P.
name: Saha, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Dark matter search experiments demand low to ultralow radiation background to operate. It is very important to understand the nature of the radiation background including knowledge about the sources contributing to it. Sometimes, evaluation of the background becomes very specific to the site chosen for the experiment, and also to the experimental configuration. A dark matter search experiment is proposed to be set up at the Jaduguda Underground Science Laboratory (JUSL) in India. The laboratory will be located inside an existing mine with 555 m of vertical rock overburden. Neutrons produced from $(α,n)$ reactions, spontaneous fission of natural radioactive impurities in the rocks, and also from cosmic muon induced reactions are considered as the main background which can affect the sensitivity and outcome of the experiment. In this work, simulations based on GEANT4 are done to understand both the radiogenic neutron background caused by natural radioactivity of the surrounding rock and the cosmogenic neutron background due to interaction of the deeply penetrating cosmic muons with the rock. The muon flux in the cavern is obtained to be $4.49(\pm0.25)\times10^{-7} $cm$^{-2}$s$^{-1}$ and the fluxes of radiogenic and cosmogenic neutrons above an energy threshold of 1 MeV in the cavern are obtained to be $5.75(\pm0.58)\times10^{-6}$cm$^{-2}$s$^{-1}$ and $7.25(\pm0.65)\times 10^{-9}$ cm$^{-2}$s$^{-1}$ respectively. The values obtained are comparable with estimates and measurements done for DAMA, WIPP and dark matter experiments at Boulby mine. The effectiveness of different shielding materials are also investigated to obtain the best possible neutron background reduction for a dark matter search experiment at JUSL. We also estimate the sensitivity of a CsI based detector for Weakly Interacting Massive Particle (WIMP) dark matter search at JUSL considering the estimated neutron background.
Threshold Resummation for Slepton-Pair Production at Hadron Colliders
Creators: name: Bozzi, G.
name: Fuks, B.
name: Klasen, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a first and extensive study of threshold resummation effects for supersymmetric (SUSY) particle production at hadron colliders, focusing on Drell-Yan like slepton-pair and slepton-sneutrino associated production. After confirming the known next-to-leading order (NLO) QCD corrections and generalizing the NLO SUSY-QCD corrections to the case of mixing squarks in the virtual loop contributions, we employ the usual Mellin N-space resummation formalism with the minimal prescription for the inverse Mellin-transform and improve it by resumming 1/N-suppressed and a class of N-independent universal contributions. Numerically, our results increase the theoretical cross sections by 5 to 15% with respect to the NLO predictions and stabilize them by reducing the scale dependence from up to 20% at NLO to less than 10% with threshold resummation.
description: 20 pages, 11 figures. Wording of several paragraphs improved, some typos corrected, version accepted by Nucl. Phys. B
Gymnogeophagus terrapurpura Loureiro, Zarucki, Malabarba & Gonzalez-Bergonzoni 2016
Creators: name: Koerber, Stefan
name: Litz, Thomas O.
name: Serra, Wilson S.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Perciformes
Cichlidae
Gymnogeophagus
Gymnogeophagus terrapurpura

description: G. terrapurpura Loureiro, Zarucki, Malabarba & González-Bergonzoni, 2016
new species from Uruguay info
published in Loureiro et al. (2016)
description: Published as part of Koerber, Stefan, Litz, Thomas O. & Serra, Wilson S., 2023, CLOFFUY - update 5 - supplement to Checklist of the Freshwater Fishes of Uruguay., pp. 1-13 in Ichthyological Contributions of PecesCriollos 83 on page 9, DOI: 10.5281/zenodo.11558471
Wavelength shifters for applications in liquid argon detectors
Creators: name: Kuźniak, Marcin
name: Szelc, Andrzej M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Wavelength shifters and their applications for liquid argon detectors have been a subject of extensive R&D over the past decade. This work reviews the most recent results in this field. We compare the optical properties and usage details together with the associated challenges for various wavelength shifting solutions. We discuss the current status and potential future R&D directions for the main classes of wavelength shifters.
Inhomogeneous confining-deconfining phases in rotating plasmas
Creators: name: Chernodub, M. N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the effects of rotation on confining properties of gauge theories focusing on compact electrodynamics in two spatial dimensions as an analytically tractable model. We show that at finite temperature, the rotation leads to a deconfining transition starting from a certain distance from the rotation axis. A uniformly rotating confining system possesses, in addition to the usual confinement and deconfinement phases, a mixed inhomogeneous phase which hosts spatially separated confinement and deconfinement regions. The phase diagram thus has two different deconfining temperatures. The first deconfining temperature can be made arbitrarily low by sufficiently rapid rotation while the second deconfining temperature is largely unaffected by the rotation. Implications of our results for the phase diagram of QCD are presented. We point out that uniformly rotating quark-gluon plasma should therefore experience an inverse hadronization effect when the hadronization starts from the core of the rotating plasma rather than from its boundary.
description: 25 pages, 8 figures
Crenicichla lepidota
Creators: name: Koerber, Stefan
name: Litz, Thomas O.
name: Serra, Wilson S.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Perciformes
Cichlidae
Crenicichla
Crenicichla lepidota

description: S. lepidota (Heckel, 1840)
comb.nov. from Crenicichla info NEW
published in Varella et al. (2023)
description: Published as part of Koerber, Stefan, Litz, Thomas O. & Serra, Wilson S., 2023, CLOFFUY - update 5 - supplement to Checklist of the Freshwater Fishes of Uruguay., pp. 1-13 in Ichthyological Contributions of PecesCriollos 83 on page 9, DOI: 10.5281/zenodo.11558471
Lexical elicitation
Creators: name: Silva, Cecile
name: Gamble, Geoffrey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024
Subjects: subject: yok

description: 2 WAV files. Side 1: finish, place, dance, hear, peel (notebook 4, pp. 14-19). Side 2: peel, swim, steal, spread (4, pp. 19-24).
Cichlasoma portalegrense
Creators: name: Koerber, Stefan
name: Litz, Thomas O.
name: Serra, Wilson S.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Perciformes
Cichlidae
Cichlasoma
Cichlasoma portalegrense

description: C. portalegrense (Hensel, 1870)
first record from Uruguay info
published in Loureiro et al. (2013) sub C. portalegrensis
description: Published as part of Koerber, Stefan, Litz, Thomas O. & Serra, Wilson S., 2023, CLOFFUY - update 5 - supplement to Checklist of the Freshwater Fishes of Uruguay., pp. 1-13 in Ichthyological Contributions of PecesCriollos 83 on page 9, DOI: 10.5281/zenodo.11558471
Hoplias argentinensis
Creators: name: Koerber, Stefan
name: Litz, Thomas O.
name: Serra, Wilson S.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Characiformes
Erythrinidae
Hoplias
Hoplias argentinensis

description: O. argentinensis (Valenciennes, 1835)
first record from Uruguay info
published in Loureiro et al. (2013)
description: Published as part of Koerber, Stefan, Litz, Thomas O. & Serra, Wilson S., 2023, CLOFFUY - update 5 - supplement to Checklist of the Freshwater Fishes of Uruguay., pp. 1-13 in Ichthyological Contributions of PecesCriollos 83 on page 9, DOI: 10.5281/zenodo.11558471
Globally-scalable Automated Target Recognition (GATR)
Creators: name: Chern, Gary
name: Groener, Austen
name: Harner, Michael
name: Kuhns, Tyler
name: Lam, Andy
name: O'Neill, Stephen
name: Pritt, Mark
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: GATR (Globally-scalable Automated Target Recognition) is a Lockheed Martin software system for real-time object detection and classification in satellite imagery on a worldwide basis. GATR uses GPU-accelerated deep learning software to quickly search large geographic regions. On a single GPU it processes imagery at a rate of over 16 square km/sec (or more than 10 Mpixels/sec), and it requires only two hours to search the entire state of Pennsylvania for gas fracking wells. The search time scales linearly with the geographic area, and the processing rate scales linearly with the number of GPUs. GATR has a modular, cloud-based architecture that uses the Maxar GBDX platform and provides an ATR analytic as a service. Applications include broad area search, watch boxes for monitoring ports and airfields, and site characterization. ATR is performed by deep learning models including RetinaNet and Faster R-CNN. Results are presented for the detection of aircraft and fracking wells and show that the recalls exceed 90% even in geographic regions never seen before. GATR is extensible to new targets, such as cars and ships, and it also handles radar and infrared imagery.
description: 7 pages, 18 figures, 2019 IEEE Applied Imagery Pattern Recognition Workshop (AIPR)
Acantholebias luteoflammulatus
Creators: name: Koerber, Stefan
name: Litz, Thomas O.
name: Serra, Wilson S.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Cyprinodontiformes
Rivulidae
Acantholebias
Acantholebias luteoflammulatus

description: A. luteoflammulatus (Vaz-Ferreira, Sierra de Soriano & Scaglia de Paulete, 1965)
comb.nov. from Austrolebias info NEW
published in Alonso et al. (2023)
description: Published as part of Koerber, Stefan, Litz, Thomas O. & Serra, Wilson S., 2023, CLOFFUY - update 5 - supplement to Checklist of the Freshwater Fishes of Uruguay., pp. 1-13 in Ichthyological Contributions of PecesCriollos 83 on page 10, DOI: 10.5281/zenodo.11558471