cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Developmental Scaffolding with Large Language Models
Creators: name: Celik, Batuhan
name: Ahmetoglu, Alper
name: Ugur, Emre
name: Oztop, Erhan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Exploratoration and self-observation are key mechanisms of infant sensorimotor development. These processes are further guided by parental scaffolding accelerating skill and knowledge acquisition. In developmental robotics, this approach has been adopted often by having a human acting as the source of scaffolding. In this study, we investigate whether Large Language Models (LLMs) can act as a scaffolding agent for a robotic system that aims to learn to predict the effects of its actions. To this end, an object manipulation setup is considered where one object can be picked and placed on top of or in the vicinity of another object. The adopted LLM is asked to guide the action selection process through algorithmically generated state descriptions and action selection alternatives in natural language. The simulation experiments that include cubes in this setup show that LLM-guided (GPT3.5-guided) learning yields significantly faster discovery of novel structures compared to random exploration. However, we observed that GPT3.5 fails to effectively guide the robot in generating structures with different affordances such as cubes and spheres. Overall, we conclude that even without fine-tuning, LLMs may serve as a moderate scaffolding agent for improving robot learning, however, they still lack affordance understanding which limits the applicability of the current LLMs in robotic scaffolding tasks.
description: To appear in IEEE Transactions on Robotics \copyright IEEE2023
Fachinformationsdienst BAUdigital
Creators: name: Winkler, Roger
name: Noback, Andreas
Publisher: name: Zenodo
Year: 2020
Subjects: FDM
Forschungsdatenmanagement
Fachinformationsdienst
HeFDI - Hessische Forschungsdateninfrastrukturen
Bauingenieurwesen
Achitektur
Urbanistik
Digitales Bauen

description: Poster über den Fachinformationsdienst BAUdigital, über die daran beteiligten Institutionen und die inhaltlichen Schwerpunkte, präsentiert am HeFDI Plenary 2020.
Elliptic flow fluctuations in 200 GeV Au+Au collisions at RHIC
Creators: name: Loizides, Constantin
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present first results on event-by-event elliptic flow fluctuations in Au+Au collisions at 200 GeV obtained with the PHOBOS detector. Over the measured range in centrality, large relative fluctuations of 40--50% are found. The elliptic flow fluctuations are well described as being proportional to fluctuations in the shape of the initial collision region, as estimated event-by-event with the participant eccentricity using Glauber Monte Carlo.
description: 5 pages, 2 figures, QM 2006 proceedings; v2: Corrected a few typos
Detection of genetic variation among Endocronartium harknessii populations in British Columbia using rDNA RFLPS and RAPD markers
Creators: name: Sun, Li-Juan
Publisher: name: University of British Columbia
Year: 2009

description: DNA-level variability in Endocronartium harknessii (Moore) Hiratsuka, the cause of western gall rust On lodgepole pine (Pinus contorta Dougl.), was assessed using RAPD's and RFLP's. The material analyzed consisted of aeciospores from 120 wild isolates collected at 12 geographically separate locations (10 galls each) ranging from the interior (6 locations) to the coast (4 locations) of the province of British Columbia with two collections from Manning Park, representing one of the passes between these regions. Using the RAPD technique, of 180 primers screened, 64 yielded clear polymorphic bands. Of these 13 were chosen for the main study. These 13 primers yielded 96 polymorphic bands. All galls exhibited a unique RAPD-type. Principle Component Analysis (PCA) revealed that coastal and interior collections were quite distinct, with the exception of two adjacent interior collections (Quesnel and Ten Mile Lake). On the other hand, of the two collections from Manning Park, the high elevation one was clearly related to the interior population, while the low elevation one was clearly coastal indicating that there is probably limited gene flow between the two regions. Dendrograms constructed, using unweighted pair group arithmetic mean analysis (UPGMA) based on similarity measure for individual galls separated most local collections into distinct clusters, and revealed relationships between local collections similar to PCA. The RFLP technique was used for a small sample of galls and revealed considerable variation between them. However, since this technique was rather laborious and required larger amounts of DNA than could be extracted from spores produced by small, young, clean galls, it was not suitable for a large population study. Analysis of DNA from different sectors of large old galls using RAPD's showed some polymorphisms between sectors. The origin of these polymorphisms is not clear, A species-specific dsRNA was detected in several galls, as well as in collections of related Cronartium rusts, suggesting the presence of a mycovirus in these rust populations.
Scleronema minutum
Creators: name: Koerber, Stefan
name: Litz, Thomas O.
name: Serra, Wilson S.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Siluriformes
Trichomycteridae
Scleronema
Scleronema minutum

description: S. minutum (Boulenger 1891)
Pygidium angustirostris Devincenzi, 1942 is a jr. synonym info
published in Ferrer & Malabarba (2020)
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 6, DOI: 10.5281/zenodo.11558471
Intermittency and universality in a Lagrangian model of velocity gradients in three-dimensional turbulence
Creators: name: Chevillard, Laurent
name: Meneveau, Charles
Publisher: name: arXiv
Year: 2007
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The universality of intermittency in hydrodynamic turbulence is considered based on a recent model for the velocity gradient tensor evolution. Three possible versions of the model are investigated differing in the assumed correlation time-scale and forcing strength. Numerical tests show that the same (universal) anomalous relative scaling exponents are obtained for the three model variants. It is also found that transverse velocity gradients are more intermittent than longitudinal ones, whereas dissipation and enstrophy scale with the same exponents. The results are consistent with the universality of intermittency and relative scaling exponents, and suggest that these are dictated by the self-stretching terms that are the same in each variant of the model.
description: 8 pages, 2 figures, final version published
Evidence for the reduction of nuclear level density away from the $β$-stability line
Creators: name: Roy, Pratap
name: Banerjee, K.
name: Rana, T. K.
name: Kundu, S.
name: Manna, S.
name: Sen, A.
name: Mondal, D.
name: Sadhukhan, J.
name: Kannan, M. T. Senthil
name: Ghosh, T. K.
name: Mukhopadhyay, S.
name: Pandit, Deepak
name: Mukherjee, G.
name: Pal, S.
name: Paul, D.
name: Atreya, K.
name: Bhattacharya, C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The isospin dependence of nuclear level density has been investigated by analyzing the spectra of evaporated neutrons from excited $^{116}$Sn and $^{116}$Te nuclei. These nuclei are populated via $p$ + $^{115}$In and $^{4}$He + $^{112}$Sn reactions in the excitation energy range of 18 - 26 MeV. Because of low excitation energy, the neutron spectra are predominantly contributed by the first-chance decay leading to the $β$-stable $^{115}$Sn and neutron-deficient $^{115}$Te as residues for the two cases. Theoretical analysis of the experimental spectra have been performed within the Hauser-Feshbach formalism by employing different models of the level density parameter. It is observed that the data could only be explained by the level density parameter that decreases monotonically when the proton number deviates from the $β$-stable value. This is also confirmed by performing a microscopic shell-model calculation with the Wood-Saxon mean field. The results have strong implication on the estimation of the level density of unstable nuclei, and calculation of astrophysical reaction rates relevant to $r$- and $rp$-processes.
NFDI4Culture
Creators: name: Kammerer, Dietmar
name: Pittroff, Sarah
Publisher: name: Zenodo
Year: 2020
Subjects: Forschungsdatenmanagement
FDM
HeFDI - Hessische Forschungsdateninfrastrukturen
NFDI - Nationale Forschungsdateninfrastrukturen
NFDI4Culture
HeFDI Plenary 2020
Poster

description: Poster über NFDI4Culture - Konsortium über die materiellen und immateriellen Kulturgüter, präsentiert auf dem HeFDI Plenary 2020.
Twilled 3-Lie algebras, generalized matched pairs of 3-Lie algebras and O-operators
Creators: name: Hou, Shuai
name: Sheng, Yunhe
name: Tang, Rong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Rings and Algebras (math.RA)
subject: Mathematical Physics (math-ph)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper, first we introduce the notion of a twilled 3-Lie algebra, and construct an $L_\infty$-algebra, whose Maurer-Cartan elements give rise to new twilled 3-Lie algebras by twisting. In particular, we recover the Lie $3$-algebra whose Maurer-Cartan elements are O-operators (also called relative Rota-Baxter operators) on 3-Lie algebras. Then we introduce the notion of generalized matched pairs of 3-Lie algebras using generalized representations of 3-Lie algebras, which will give rise to twilled 3-Lie algebras. The usual matched pairs of 3-Lie algebras correspond to a special class of twilled 3-Lie algebras, which we call strict twilled 3-Lie algebras. Finally, we use O-operators to construct explicit twilled 3-Lie algebras, and explain why an $r$-matrix for a 3-Lie algebra can not give rise to a double construction 3-Lie bialgebra. Examples of twilled 3-Lie algebras are given to illustrate the various interesting phenomenon.
description: 19 pages, comments are welcome
Large-Scale Intelligent Microservices
Creators: name: Hamilton, Mark
name: Gonsalves, Nick
name: Lee, Christina
name: Raman, Anand
name: Walsh, Brendan
name: Prasad, Siddhartha
name: Banda, Dalitso
name: Zhang, Lucy
name: Gao, Mei
name: Zhang, Lei
name: Freeman, William T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Databases (cs.DB)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Machine Learning (cs.LG)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Deploying Machine Learning (ML) algorithms within databases is a challenge due to the varied computational footprints of modern ML algorithms and the myriad of database technologies each with its own restrictive syntax. We introduce an Apache Spark-based micro-service orchestration framework that extends database operations to include web service primitives. Our system can orchestrate web services across hundreds of machines and takes full advantage of cluster, thread, and asynchronous parallelism. Using this framework, we provide large scale clients for intelligent services such as speech, vision, search, anomaly detection, and text analysis. This allows users to integrate ready-to-use intelligence into any datastore with an Apache Spark connector. To eliminate the majority of overhead from network communication, we also introduce a low-latency containerized version of our architecture. Finally, we demonstrate that the services we investigate are competitive on a variety of benchmarks, and present two applications of this framework to create intelligent search engines, and real-time auto race analytics systems.
A Study on the Implementation of Generative AI Services Using an Enterprise Data-Based LLM Application Architecture
Creators: name: Jeong, Cheonsu
Publisher: name: arXiv
Year: 2023
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: This study presents a method for implementing generative AI services by utilizing the Large Language Models (LLM) application architecture. With recent advancements in generative AI technology, LLMs have gained prominence across various domains. In this context, the research addresses the challenge of information scarcity and proposes specific remedies by harnessing LLM capabilities. The investigation delves into strategies for mitigating the issue of inadequate data, offering tailored solutions. The study delves into the efficacy of employing fine-tuning techniques and direct document integration to alleviate data insufficiency. A significant contribution of this work is the development of a Retrieval-Augmented Generation (RAG) model, which tackles the aforementioned challenges. The RAG model is carefully designed to enhance information storage and retrieval processes, ensuring improved content generation. The research elucidates the key phases of the information storage and retrieval methodology underpinned by the RAG model. A comprehensive analysis of these steps is undertaken, emphasizing their significance in addressing the scarcity of data. The study highlights the efficacy of the proposed method, showcasing its applicability through illustrative instances. By implementing the RAG model for information storage and retrieval, the research not only contributes to a deeper comprehension of generative AI technology but also facilitates its practical usability within enterprises utilizing LLMs. This work holds substantial value in advancing the field of generative AI, offering insights into enhancing data-driven content generation and fostering active utilization of LLM-based services within corporate settings.
The Network of Epicenters of the Olami-Feder-Christensen Model of Earthquakes
Creators: name: Peixoto, Tiago P.
name: Prado, Carmen P. C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the dynamics of the Olami-Feder-Christensen (OFC) model of earthquakes, focusing on the behavior of sequences of epicenters regarded as a growing complex network. Besides making a detailed and quantitative study of the effects of the borders (the occurrence of epicenters is dominated by a strong border effect which does not scale with system size), we examine the degree distribution and the degree correlation of the graph. We detect sharp differences between the conservative and nonconservative regimes of the model. Removing border effects, the conservative regime exhibits a Poisson-like degree statistics and is uncorrelated, while the nonconservative has a broad power-law-like distribution of degrees (if the smallest events are ignored), which reproduces the observed behavior of real earthquakes. In this regime the graph has also a unusually strong degree correlation among the vertices with higher degree, which is the result of the existence of temporary attractors for the dynamics: as the system evolves, the epicenters concentrate increasingly on fewer sites, exhibiting strong synchronization, but eventually spread again over the lattice after a series of sufficiently large earthquakes. We propose an analytical description of the dynamics of this growing network, considering a Markov process network with hidden variables, which is able to account for the mentioned properties.
description: 9 pages, 10 figures. Smaller number of figures, and minor text corrections and modifications. For version with full resolution images see http://fig.if.usp.br/~tpeixoto/cond-mat-0602244.pdf
Solid-state Li-ion batteries operating at room temperature using new borohydride argyrodite electrolytes
Creators: name: Dao, Anh Ha
name: López-Aranguren, Pedro
name: Zhang, Junxian
name: Cuevas, Fermín
name: Latroche, Michel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using a new class of (BH4)- substituted argyrodite Li6PS5Z0.83(BH4)0.17, (Z = Cl, I) solid electrolyte, Li-metal solid-state batteries operating at room temperature have been developed. The cells were made by combining the modified argyrodite with an In-Li anode and two types of cathode: an oxide, LixMO2 (M = 1/3Ni, 1/3Mn, 1/3Co; so called NMC) and a titanium disulfide, TiS2. The performance of the cells was evaluated through galvanostatic cycling and Alternating Current AC electrochemical impedance measurements. Reversible capacities were observed for both cathodes for at least tens of cycles. However, the high-voltage oxide cathode cell shows lower reversible capacity and larger fading upon cycling than the sulfide one. The AC impedance measurements revealed an increasing interfacial resistance at the cathode side for the oxide cathode inducing the capacity fading. This resistance was attributed to the intrinsic poor conductivity of NMC and interfacial reactions between the oxide material and the argyrodite electrolyte. On the contrary, the low interfacial resistance of the TiS2 cell during cycling evidences a better chemical compatibility between this active material and substituted argyrodites, allowing full cycling of the cathode material, 240 mAhg-1, for at least 35 cycles with a coulombic efficiency above 97%.
NFDI4Cat
Creators: name: Bohmer, Nils
Publisher: name: Zenodo
Year: 2020
Subjects: Forschungsdatenmanagement
FDM
HeFDI - Hessische Forschungsdateninfrastrukturen
NFDI
NFDI4Cat
HeFDI Plenary 2020

description: Poster about the NFDI4Cat - NFDI for Catalysis-Related Sciences, presented at the HeFDI Plenary 2020.
Chiral Symmetry in Nuclei -- Theoretical Expectations and Hard Facts
Creators: name: Mosel, Ulrich
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: It is widely believed that chiral symmetry is restored not only at high temperatures, but also at high nuclear densities. The drop of the order parameter of the chiral phase transition, the chiral condensate, with density has indeed been calculated in various models and is as such a rather robust result. In this talk I point out that the connection of this property with actual observables is far less clear. For this task a good hadronic description of the primary production of hadrons, their propagation inside the nuclear medium, their decay and the propagation of the decay products through the medium to the detector all have to be treated with equal accuracy and weight. In this talk I illustrate with the examples of $ω$ production and $π^0π^0$ production how important in particular final state interactions are.
description: Invited Talk at Chiral07, Osaka, Japan, Nov. 13 - 16, 2007
Zero-shot information extraction from radiological reports using ChatGPT
Creators: name: Hu, Danqing
name: Liu, Bing
name: Zhu, Xiaofeng
name: Lu, Xudong
name: Wu, Nan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Electronic health records contain an enormous amount of valuable information, but many are recorded in free text. Information extraction is the strategy to transform the sequence of characters into structured data, which can be employed for secondary analysis. However, the traditional information extraction components, such as named entity recognition and relation extraction, require annotated data to optimize the model parameters, which has become one of the major bottlenecks in building information extraction systems. With the large language models achieving good performances on various downstream NLP tasks without parameter tuning, it becomes possible to use large language models for zero-shot information extraction. In this study, we aim to explore whether the most popular large language model, ChatGPT, can extract useful information from the radiological reports. We first design the prompt template for the interested information in the CT reports. Then, we generate the prompts by combining the prompt template with the CT reports as the inputs of ChatGPT to obtain the responses. A post-processing module is developed to transform the responses into structured extraction results. We conducted the experiments with 847 CT reports collected from Peking University Cancer Hospital. The experimental results indicate that ChatGPT can achieve competitive performances for some extraction tasks compared with the baseline information extraction system, but some limitations need to be further improved.
The Evolution of the IR Luminosity Function and Dust-obscured Star Formation in the Last 13 Billion Years
Creators: name: Zavala, J. A.
name: Casey, C. M.
name: Manning, S. M.
name: Aravena, M.
name: Bethermin, M.
name: Caputi, K. I.
name: Clements, D. L.
name: da Cunha, E.
name: Drew, P.
name: Finkelstein, S. L.
name: Fujimoto, S.
name: Hayward, C.
name: Hodge, J.
name: Kartaltepe, J. S.
name: Knudsen, K.
name: Koekemoer, A. M.
name: Long, A. S.
name: Magdis, G. E.
name: Man, A. W. S.
name: Popping, G.
name: Sanders, D.
name: Scoville, N.
name: Sheth, K.
name: Staguhn, J.
name: Toft, S.
name: Treister, E.
name: Vieira, J. D.
name: Yun, M. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the first results from the 2mm Mapping Obscuration to Reionization (MORA) survey, the largest ALMA contiguous blank-field survey to-date with a total area of 184 sq. arcmin and the only at 2mm to search for dusty star-forming galaxies (DSFGs). We use the 13 sources detected above 5sigma to estimate the first ALMA galaxy number counts at this wavelength. These number counts are then combined with the state-of-the-art galaxy number counts at 1.2mm and 3mm and with a backward evolution model to place constraints on the evolution of the IR luminosity function and dust-obscured star formation in the last 13 billion years. Our results suggest a steep redshift evolution on the space density of DSFGs and confirm the flattening of the IR luminosity function at faint luminosities, with a slope of $α_{LF} = -0.42^{+0.02}_{-0.04}$. We conclude that the dust-obscured component, which peaks at z=2-2.5, has dominated the cosmic history of star formation for the past ~12 billion years, back to z~4. At z=5, the dust-obscured star formation is estimated to be ~35% of the total star formation rate density and decreases to 25%-20% at z=6-7, implying a minor contribution of dust-enshrouded star formation in the first billion years of the Universe. With the dust-obscured star formation history constrained up to the end of the epoch of reionization, our results provide a benchmark to test galaxy formation models, to study the galaxy mass assembly history, and to understand the dust and metal enrichment of the Universe at early times.
description: Accepted for publication in The Astrophysical Journal
Neural Identification for Control
Creators: name: Saha, Priyabrata
name: Egerstedt, Magnus
name: Mukhopadhyay, Saibal
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: We present a new method for learning control law that stabilizes an unknown nonlinear dynamical system at an equilibrium point. We formulate a system identification task in a self-supervised learning setting that jointly learns a controller and corresponding stable closed-loop dynamics hypothesis. The input-output behavior of the unknown dynamical system under random control inputs is used as the supervising signal to train the neural network-based system model and the controller. The proposed method relies on the Lyapunov stability theory to generate a stable closed-loop dynamics hypothesis and corresponding control law. We demonstrate our method on various nonlinear control problems such as n-link pendulum balancing and trajectory tracking, pendulum on cart balancing, and wheeled vehicle path following.
description: Copyright 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works
Hawking Radiation Under Generalized Uncertainty Principle
Creators: name: Chau, Tin-Long
name: Ho, Pei-Ming
name: Kawai, Hikaru
name: Shao, Wei-Hsiang
name: Wang, Cheng-Tsung
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The generalized uncertainty relation is expected to be an essential element in a theory of quantum gravity. In this work, we examine its effect on the Hawking radiation of a Schwarzschild black hole formed from collapse by incorporating a minimal uncertainty length scale into the radial coordinate of the background. This is implemented in both the ingoing Vaidya coordinates and a family of freely falling coordinates. We find that, regardless of the choice of the coordinate system, Hawking radiation is turned off at around the scrambling time. Interestingly, this phenomenon occurs while the Hawking temperature remains largely unmodified.
description: 23 pages, 1 figure; v2: references added; v3: published version with more references and added clarifications
Effects of cerebellar direct current stimulation on pain perception
Creators: name: Santarcangelo, Enrica Laura
name: Vannini, Beatrice
name: Ferrucci, Roberta
name: Priori, Alberto
name: Valeriani, Massimo
name: Sartucci, Ferdinando
name: Carli, Giancarlo
name: Bocci, Tommaso
Publisher: name: F1000Research
Year: 2015

description: Anodal , cathodal and sham cerebellar stimulation in healthy individuals receiving laser nociceptive stimulation.
Variables: pain scores and laser evoked cortical potentials (amplitude and latency)
Von der Eingabe zur Publikation – Die Nutzbarmachung quantitativer Paneldaten im GUS-Projekt
Creators: name: Lipp, Robert
name: Klocke, Andreas
name: Stadtmüller, Sven
name: Wacker, Christina
name: Giersiefen, Andrea
Publisher: name: Zenodo
Year: 2020
Subjects: Forschungsdatenmanagement
FDM
HeFDI - Hessische Forschungsdateninfrastrukturen
Forschungszentrum Demografischer Wandel (FZDW)
HeFDI Plenary 2020
Poster

description: Poster über die Nutzbarmachung quantitativer Paneldaten im Projekt "Gesundheitsverhalten und Unfallgeschehen im Schulalter" (GUS), präsentiert auf dem HeFDI Plenary 2020.
Elucidation of the electronic structure of semiconducting single-walled carbon nanotubes by electroabsorption spectroscopy
Creators: name: Zhao, Hongbo
name: Mazumdar, Sumit
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report benchmark calculations of electroabsorption in semiconducting single-walled carbon nanotubes to provide motivation to experimentalists to perform electroabsorption measurement on these systems. We show that electroabsorption can detect continuum bands in different energy manifolds, even as other nonlinear absorption measurements have failed to detect them. Direct determination of the binding energies of excitons in higher manifolds thereby becomes possible. We also find that electroabsorption can provide evidence for Fano-type coupling between the second exciton and the lowest continuum band states.
description: 3 figures, 2 tables
Connecting the Many-Body Chern Number to Luttinger's Theorem through Středa's Formula
Creators: name: Gavensky, Lucila Peralta
name: Sachdev, Subir
name: Goldman, Nathan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Relating the quantized Hall response of correlated insulators to many-body topological invariants is a key challenge in topological quantum matter. Here, we use Streda's formula to derive an expression for the many-body Chern number in terms of the single-particle interacting Green's function and its derivative with respect to a magnetic field. In this approach, we find that this many-body topological invariant can be decomposed in terms of two contributions, $N_3[G] + ΔN_3[G]$, where $N_3[G]$ is known as the Ishikawa-Matsuyama invariant and where the second term involves derivatives of Green's function and the self energy with respect to the magnetic perturbation. As a by-product, the invariant $N_3[G]$ is shown to stem from the derivative of Luttinger's theorem with respect to the probe magnetic field. These results reveal under which conditions the quantized Hall conductivity of correlated topological insulators is solely dictated by the invariant $N_3[G]$, providing new insight on the origin of fractionalization in strongly-correlated topological phases.
description: 6 pages
Lepidochelys olivacea
Creators: name: Figueroa, Alex
name: Low, Martyn E. Y.
name: Lim, Kelvin K. P.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Testudines
Cheloniidae
Lepidochelys
Lepidochelys olivacea

description: Lepidochelys olivacea (Eschscholtz, 1829) — Visitor.
Chelonia olivacea Eschscholtz, 1829a: 3–4, pl. 3. Type material: None designated; two syntypes originally at MZT and transferred to ZMMU apparently lost, according to Flores-Villela et al. (2016: 161); one of the syntypic figures (pl. 3) is reproduced in Flores-Villela et al. (2016: 161). Type locality: “[d]as Vaterland ist das chinesische Meer … in der Bai von Manilla … bei Sumatra” (= Chinese Sea, Manilay Bay Philippines, and Sumatra, Indonesia).
Olive Ridley Sea Turtle
(Figures 8D)
Singapore records.
Chelonia olivacea — Jan, 1857: 56.
Lepidochelys olivacea — J.Y. Ng et al., 2019: 65–66 (East Coast Park).—TTWG, 2021: 97.
“Olive Ridley turtles”—Van Miriah, 2002: Local.
Remarks. Lepidochelys olivacea occupies tropical waters throughout the globe, and is listed by TTWG (2021) as foraging in Singapore and nesting in Malaysia. The first record of L. olivacea from Singapore comes from Jan (1857) who reported a specimen from Singapore deposited at MSNM. Information and the whereabouts of the specimen is unknown and we found no other publications that reference Jan’s record. The RMNH also contains a specimen from Singapore (RMNH.RENA.37880) that lacks any data. For 161 years (Table 2), no other records of L. olivacea from Singapore were made until a carcass of one was found at ECP on 25 August 2018 (Ng et al. 2019). The carapace of the turtle had a crack suggesting it was wounded by a boat (Ng et al. 2019). Before this, turtles confiscated from illegal traders by AVA that included C. caretta, C. mydas, E. imbricata, and L. olivacea were released by Underwater World Singapore at Siloso Beach on 6 June 2002 (Van Miriah 2002), but we do not consider this as a valid record of L. olivacea. As L. olivacea nests in Malaysia (Moll 1976), it is likely that it forages or transits through Singapore.
Occurrence. Visitor. Rare.
Singapore conservation status. Not Evaluated.
Conservation priority. Lowest.
IUCN conservation status. Vulnerable [2008].
LKCNHM & NHMUK Museum specimens. No specimens.
Additional Singapore museum specimens. Singapore (no locality): RMNH.
Singapore localities. East Coast Park*.
description: Published as part of Figueroa, Alex, Low, Martyn E. Y. & Lim, Kelvin K. P., 2023, Singapore's herpetofauna: updated and annotated checklist, history, conservation, and distribution, pp. 1-378 in Zootaxa 5287 (1) on pages 70-71, DOI: 10.11646/zootaxa.5287.1.1, http://zenodo.org/record/7960319
Axial masses in quasielastic neutrino scattering and single-pion neutrinoproduction on nucleons and nuclei
Creators: name: Kuzmin, Konstantin S.
name: Lyubushkin, Vladimir V.
name: Naumov, Vadim A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: We analyse available experimental data on the total charged-current neutrino-nucleon and antineutrino-nucleon cross sections for quasielastic scattering and single-pion neutrinoproduction. Published results from the relevant experiments at ANL, BNL, FNAL, CERN, and IHEP are included dating from the end of sixties to the present day, covering muon neutrino and antineutrino beams on a variety of nuclear targets, with energies from the thresholds to about 350 GeV. The data are used to adjust the poorly known values of the axial masses.
description: Presented at the XXth Max Born Symposium ``Nuclear effects in neutrino interactions,'' Wroclaw, Poland, December 7-10, 2005
Understanding the first measurement of $\mathcal{B}(B\to K ν\barν)$
Creators: name: Allwicher, Lukas
name: Becirevic, Damir
name: Piazza, Gioacchino
name: Rosauro-Alcaraz, Salvador
name: Sumensari, Olcyr
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recently, Belle II reported on the first measurement of $\mathcal{B}(B^\pm\to K^\pm ν\barν)$ which appears to be almost $3σ$ larger than predicted in the Standard Model. We point out the important correlation with $\mathcal{B}(B\to K^{\ast} ν\barν)$ so that the measurement of that decay mode could help restraining the possible options for building the model of New Physics. We then try to interpret this new experimental result in terms of physics beyond the Standard Model by using SMEFT and find that a scenario with coupling only to $τ$ can accommodate the current experimental constraints but fails in getting a desired $R_{D^{(\ast )}}^\mathrm{exp}/R_{D^{(\ast )}}^\mathrm{SM}$, unless one turns the other SMEFT operators that are not related to $b\to s\ell\ell$ or/and $b\to sνν$.
description: 9 pages, 6 figures. Corrected some typos and improved the discussion
Gravitational Waves in New General Relativity
Creators: name: Golovnev, Alexey
name: Semenova, A. N.
name: Vandeev, V. P.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The models of New General Relativity have recently got attention of research community, and there are some works studying their dynamical properties. The formal aspects of this investigation have been mostly restricted to the primary constraints in the Hamiltonian analysis. However, it is by far not enough for counting their degrees of freedom or judging whether they are any good and viable. In this paper we study linearised equations in vacuum around the trivial Minkowski tetrad. By taking the approach of cosmological perturbation theory we show that the numbers of primary constraints are very easily seen without any need of genuine Hamiltonian techniques, and give the full count of linearised degrees of freedom in the weak field limit of each and every version of New General Relativity without matter.
description: 14 pages; minor changes and additions
Diffusion in superfluid Fermi mixtures: General formalism
Creators: name: Goglichidze, Oleg A.
name: Gusakov, Mikhail E.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: With neutron star applications in mind, we developed a theory of diffusion in mixtures of superfluid, strongly interacting Fermi liquids. By employing the Landau theory of Fermi liquids, we determined matrices that relate the currents of different particle species, their momentum densities, and the partial entropy currents to each other. Using these results, and applying the quasiclassical kinetic equation for the Bogoliubov excitations, we derived general expressions for the diffusion coefficients, which properly incorporate all the Fermi liquid effects and depend on the momentum transfer rates between different particle species. The developed framework can be used as a starting point for systematic calculations of the diffusion coefficients (as well as other kinetic coefficients) in superfluid Fermi mixtures, particularly, in superfluid neutron stars.
description: 38 pages, 4 figures, published in Phys. Rev. C, misprints in Eqs. (49), (81), (84), and (86) were corrected
Universal Toda brackets of ring spectra
Creators: name: Sagave, Steffen
Publisher: name: arXiv
Year: 2006
Subjects: subject: Algebraic Topology (math.AT)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 55P43 (Primary); 19D55, 55S35, 55U35 (Secondary)

description: We construct and examine the universal Toda bracket of a highly structured ring spectrum R. This invariant of R is a cohomology class in the Mac Lane cohomology of the graded ring of homotopy groups of R which carries information about R and the category of R-module spectra. It determines for example all triple Toda brackets of R and the first obstruction to realizing a module over the homotopy groups of R by an R-module spectrum. For periodic ring spectra, we study the corresponding theory of higher universal Toda brackets. The real and complex K-theory spectra serve as our main examples.
description: 38 pages; a few typos corrected, to appear in Trans. Amer. Math. Soc
Fast Decomposition of Temporal Logic Specifications for Heterogeneous Teams
Creators: name: Leahy, Kevin
name: Jones, Austin
name: Vasile, Cristian-Ioan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In this work, we focus on decomposing large multi-agent path planning problems with global temporal logic goals (common to all agents) into smaller sub-problems that can be solved and executed independently. Crucially, the sub-problems' solutions must jointly satisfy the common global mission specification. The agents' missions are given as Capability Temporal Logic (CaTL) formulas, a fragment of signal temporal logic, that can express properties over tasks involving multiple agent capabilities (sensors, e.g., camera, IR, and effectors, e.g., wheeled, flying, manipulators) under strict timing constraints. The approach we take is to decompose both the temporal logic specification and the team of agents. We jointly reason about the assignment of agents to subteams and the decomposition of formulas using a satisfiability modulo theories (SMT) approach. The output of the SMT is then distributed to subteams and leads to a significant speed up in planning time. We include computational results to evaluate the efficiency of our solution, as well as the trade-offs introduced by the conservative nature of the SMT encoding.
Temperature acclimation of root respiration in Douglas-fir and western red cedar seedlings
Creators: name: Budge, Sonya M.
Publisher: name: University of British Columbia
Year: 2009

description: This study examined the ability of seedlings of coastal and interior provenances of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) and western red cedar (Thuja plicata Donn) to acclimate root respiration rates to growth temperature. A second objective was to determine whether acclimation involved an increase in activity and/or capacity of the alternative path of electron transport, a phenomenon observed in many crop species. Since western red cedar has less genetic variation than Douglas-fir, one might expect better acclimation in cedar. Seedlings were grown hydroponically in computer-controlled mist boxes placed inside an environmental chamber (18/6 hr photoperiod, day/night). This allowed for precise manipulation of root temperature (11, 18, 25°C), while shoot temperature was unchanged between treatments (25/18°C, day/night). Respiration of excised root segments was measured with an oxygen electrode. Potassium cyanide and salicylhydroxamic acid were used to estimate the activity and capacity of the alternative path. Oxygen response curves were constructed, seedling water potentials were determined and shoot samples were analyzed for carbon isotope discrimination. Total plant weight, root to shoot biomass and root density were also measured. The results showed that both the coastal and interior provenances of western red cedar and the coastal provenance of Douglas-fir were able to acclimate, while interior Douglas-fir was not. Acclimation did not seem to involve an increase in electron partitioning through the alternative path. It was suggested that the increase in alternative path respiration that is often seen at low temperatures is independent of compensatory respiration and sometimes occurs coincidentally with it to reduce the damage caused by active oxygen species, which can be a problem at those temperatures. There is evidence that the cold-grown roots were able to increase the supply of O₂ to the mitochondria, thus compensating for the increased O₂ demand that occurs upon acclimation, although the manner in which they did this remains unclear. Seedlings appeared to be able to adjust stomatal conductance in order to avoid experiencing water stress. The optimal root growth temperature was between 18 and 25°C for both species. It seems that root signalling could be involved in rhodoxanthin accumulation in cedar shoots.
Revisiting the HD 21749 Planetary System with Stellar Activity Modeling
Creators: name: Gan, Tianjun
name: Wang, Sharon Xuesong
name: Teske, Johanna K.
name: Mao, Shude
name: Howard, Ward S.
name: Law, Nicholas M.
name: Batalha, Natasha E.
name: Vanderburg, Andrew
name: Dragomir, Diana
name: Huang, Chelsea X.
name: Feng, Fabo
name: Butler, R. Paul
name: Crane, Jeffrey D.
name: Shectman, Stephen A.
name: Beletsky, Yuri
name: Shporer, Avi
name: Montet, Benjamin T.
name: Burt, Jennifer A.
name: Feinstein, Adina D.
name: Flowers, Erin
name: Nandakumar, Sangeetha
name: Barbieri, Mauro
name: Corbett, Hank
name: Ratzloff, Jeffrey K.
name: Galliher, Nathan
name: Chavez, Ramses Gonzalez
name: Vasquez, Alan
name: Glazier, Amy
name: Haislip, Joshua
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: HD 21749 is a bright ($V=8.1$ mag) K dwarf at 16 pc known to host an inner terrestrial planet HD 21749c as well as an outer sub-Neptune HD 21749b, both delivered by TESS. Follow-up spectroscopic observations measured the mass of HD 21749b to be $22.7\pm2.2\ M_{\oplus}$ with a density of $7.0^{+1.6}_{-1.3}$ g~cm$^{-3}$, making it one of the densest sub-Neptunes. However, the mass measurement was suspected to be influenced by stellar rotation. Here we present new high-cadence PFS RV data to disentangle the stellar activity signal from the planetary signal. We find that HD 21749 has a similar rotational timescale as the planet's orbital period, and the amplitude of the planetary orbital RV signal is estimated to be similar to that of the stellar activity signal. We perform Gaussian Process (GP) regression on the photometry and RVs from HARPS and PFS to model the stellar activity signal. Our new models reveal that HD 21749b has a radius of $2.86\pm0.20\ R_{\oplus}$, an orbital period of $35.6133\pm0.0005$ d with a mass of $M_{b}=20.0\pm2.7\ M_{\oplus}$ and a density of $4.8^{+2.0}_{-1.4}$ g~cm$^{-3}$ on an eccentric orbit with $e=0.16\pm0.06$, which is consistent with the most recent values published for this system. HD 21749c has an orbital period of $7.7902\pm0.0006$ d, a radius of $1.13\pm0.10\ R_{\oplus}$, and a 3$σ$ mass upper limit of $3.5\ M_{\oplus}$. Our Monte Carlo simulations confirm that without properly taking stellar activity signals into account, the mass measurement of HD 21749b is likely to arrive at a significantly underestimated error bar.
description: 20 pages, 16 figures, accepted to MNRAS
Aportes en ingeniería hidrológica de zonas áridas. Casos aplicados a la vertiente del Pacífico peruano
Creators: name: Rau, Pedro
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 370704
subject: Surface water hydrology

description: Articulo Congreso de Hidraulica Hidrologia Saneamiento ICG Peru (2019)
Holographic stability for non-$q\bar{q}$ candidates
Creators: name: Contreras, Miguel Angel Martin
name: Vega, Alfredo
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the context of bottom-up AdS/QCD models, we discuss how the configurational entropy can describe heavy non-$q\,\bar{q}$ states. Using the non-quadratic softwall model, introduced to describe non-linear Regge trajectories, we parametrize different multiquark and exotic meson structures to describe $Z_c$, $ψ$, and $Z_b$ states as non-$q\,\bar{q}$ hadrons in terms of stability. We found that $Z_c$ is better described as a hybrid meson with one gluon tube, $ψ$ as hadrocharmonium, and $Z_b$ as hadronic molecule.
description: 10 pages, 1 figure, 3 tables
Regional Flood Risk Projections under Climate Change
Creators: name: Sharma, Sanjib
name: Gomez, Michael
name: Keller, Klaus
name: Nicholas, Robert
name: Mejia, Alfonso
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Flood-related risks to people and property are expected to increase in the future due to environmental and demographic changes. It is important to quantify and effectively communicate flood hazards and exposure to inform the design and implementation of flood risk management strategies. Here we develop an integrated modeling framework to assess projected changes in regional riverine flood inundation risks. The framework samples climate model outputs to force a hydrologic model and generate streamflow projections. Together with a statistical and hydraulic model, we use the projected streamflow to map the uncertainty of flood inundation projections for extreme flood events. We implement the framework for rivers across the state of Pennsylvania, United States. Our projections suggest that flood hazards and exposure across Pennsylvania are overall increasing with future climate change. Specific regions, including the main stem Susquehanna River, lower portion of the Allegheny basin and central portion of Delaware River basin, demonstrate higher flood inundation risks. In our analysis, the climate uncertainty dominates the overall uncertainty surrounding the flood inundation projection chain. The combined hydrologic and hydraulic uncertainties can account for as much as 37% of the total uncertainty. We discuss how this framework can provide regional and dynamic flood-risk assessments and help to inform the design of risk-management strategies.