cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Thresholdless stochastic particle heating by a single wave
Creators: name: Sattin, F.
name: Escande, D. F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Stochastic heating is a well-known mechanism through which magnetized particles may be energized by low-frequency electromagnetic waves. In its simplest version, under spatially homogeneous conditions, it is known to be operative only above a threshold in the normalized wave amplitude, which may be a demanding requisite in actual scenarios, severely restricting its range of applicability. In this work we show, by numerical simulations supported by inspection of the particle Hamiltonian, that allowing for even a very weak spatial inhomogeneity completely removes the threshold, trading the requirement upon the wave amplitude with a requisite upon the duration of the interaction between wave and particle. The thresholdless chaotic mechanism considered here is likely to be applicable to other inhomogeneous systems.
description: V2. Some minor mistakes corrected
Optimal Constrained Task Planning as Mixed Integer Programming
Creators: name: Adu-Bredu, Alphonsus
name: Devraj, Nikhil
name: Jenkins, Odest Chadwicke
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: For robots to successfully execute tasks assigned to them, they must be capable of planning the right sequence of actions. These actions must be both optimal with respect to a specified objective and satisfy whatever constraints exist in their world. We propose an approach for robot task planning that is capable of planning the optimal sequence of grounded actions to accomplish a task given a specific objective function while satisfying all specified numerical constraints. Our approach accomplishes this by encoding the entire task planning problem as a single mixed integer convex program, which it then solves using an off-the-shelf Mixed Integer Programming solver. We evaluate our approach on several mobile manipulation tasks in both simulation and on a physical humanoid robot. Our approach is able to consistently produce optimal plans while accounting for all specified numerical constraints in the mobile manipulation tasks. Open-source implementations of the components of our approach as well as videos of robots executing planned grounded actions in both simulation and the physical world can be found at this url: https://adubredu.github.io/gtpmip
description: International Conference on Intelligent Robots and Systems (IROS), 2022
The hard to soft transition of GX 339-4 as seen by Insight-HXMT
Creators: name: Liu, Honghui
name: Bambi, Cosimo
name: Jiang, Jiachen
name: Garcia, Javier A.
name: Ji, Long
name: Kong, Lingda
name: Ren, Xiaoqin
name: Zhang, Shu
name: Zhang, Shuangnan
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present an analysis of the relativistic reflection spectra of GX 339-4 during the hard-to-soft transition of its 2021 outburst observed by Insight-HXMT. The strong relativistic reflection signatures in the data suggest a high black hole spin ($a_*>0.86$) and an intermediate disk inclination angle (35-43 deg) of the system. The transition is accompanied by an increasing temperature of the disk and a softening of the corona emission while the inner disk radius remains stable. Assuming a lamppost geometry, the corona height is also found to stay close to the black hole across the state transition. If we include the Comptonization of the reflection spectrum, the scattering fraction parameter is found to decrease during the state transition. We also perform an analysis with a reflection model designed for hot accretion disks of stellar mass black holes where the surface of the innermost accretion disk is illuminated by emission from the corona and the thermal disk below. Our results support the scenario in which the state transition is associated with variations in the corona properties.
description: 10 pages, 5 figures, Accepted by ApJ
Distinguishing subgroups of the rationals by their Ramsey properties
Creators: name: Barber, Ben
name: Hindman, Neil
name: Leader, Imre
name: Strauss, Dona
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05D10

description: A system of linear equations with integer coefficients is partition regular over a subset S of the reals if, whenever S\{0} is finitely coloured, there is a solution to the system contained in one colour class. It has been known for some time that there is an infinite system of linear equations that is partition regular over R but not over Q, and it was recently shown (answering a long-standing open question) that one can also distinguish Q from Z in this way. Our aim is to show that the transition from Z to Q is not sharp: there is an infinite chain of subgroups of Q, each of which has a system that is partition regular over it but not over its predecessors. We actually prove something stronger: our main result is that if R and S are subrings of Q with R not contained in S, then there is a system that is partition regular over R but not over S. This implies, for example, that the chain above may be taken to be uncountable.
description: 14 pages
Deriving Metallicities from Calcium Triplet Spectroscopy in combination with Near Infrared Photometry
Creators: name: Mauro, F.
name: Bidin, C. Moni
name: Geisler, D.
name: Saviane, I.
name: Da Costa, G. S.
name: Gormaz-Matamala, A. C.
name: Vasquez, S.
name: Chené, A. -N.
name: Cohen, R.
name: Dias, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Context. [...] One of the most efficient methods is the measurement of the equivalent width (EW) of the Calcium II Triplet (CaT), corrected for the luminosity and temperature effects via magnitude differences from the horizontal branch (HB). Methods. We use the Ks magnitude difference between the star and the reddest part of the HB (RHB) to generate reduced equivalent widths (rEW) from the datasets presented in Saviane et al. (2012) and Rutledge et al. (1997). Subsequently we calibrated these rEW against three different metellicity (met) scales: the one presented in Carretta et al. (2009), the met values given in Harris (2010) and a version of the former corrected via high-resolution spectroscopic met. Results. We calculated the calibration relations for the two datasets and the three met scales and found that they are approximately equivalent, with differences almost negligible. We compared our nIR calibrations with the corresponding optical ones, and found them to be equivalent, establishing that the luminosity-corrected rEW using the Ks magnitude is compatible with the one obtained from the V magnitude. We then used the met obtained from the calibration to investigate the internal met distributions of the GCs. Conclusions. We have established that the ([Fe/H]:rEW) relation is independent from the mag used for the luminosity correction and find that the calibration relations only change slightly for different met scales. The CaT technique using NIR photometry is thus a powerful tool to derive met. In particular, it can be used to study the internal met spread of a GC. We confirm the presence of at least two met populations in NGC 6656 and find that several other GCs present peculiar met distributions.
description: 41 pages, 8 tables, 42 figures A&A: recommended publication after revision
Purity decay rate in random circuits with different configurations of gates
Creators: name: Bensa, Jaš
name: Žnidarič, Marko
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study purity decay -- a measure of bipartite entanglement -- in a chain of $n$ qubits under the action of various geometries of nearest-neighbor random two-site unitary gates. We use a Markov chain description of average purity evolution, using further reduction to obtain a transfer matrix of only polynomial dimension in $n$. In most circuits, an exception being the brick-wall configuration, purity decays to its asymptotic value in two stages: the initial thermodynamically relevant decay persisting up to extensive times is $\sim λ_{\mathrm{eff}}^t$, with $λ_{\mathrm{eff}}$ not necessarily being in the spectrum of the transfer matrix, while the ultimate asymptotic decay is given by the second largest eigenvalue $λ_2$ of the transfer matrix. The effective rate $λ_{\mathrm{eff}}$ depends on the location of bipartition boundaries as well as on the geometry of applied gates.
description: version 2
Conductive Polymer Work Function Changes due toResidual Water: Impact of Temperature-DependentDielectric Constant
Creators: name: Mansour, Ahmed E.
name: Kim, Hongwon
name: Park, Soohyung
name: Schultz, Thorsten
name: Cao, David X.
name: Nguyen, Thuc-Quyen
name: Brütting, Wolfgang
name: Opitz, Andreas
name: Koch, Norbert
Publisher: name: Humboldt-Universität zu Berlin
Year: 2020
Subjects: subject: conductive polymers
subject: dielectric constant
subject: temperature dependence
subject: water
subject: work function
subject: 621 Angewandte Physik

description: Solution‐processed conducting polymer thin films are key components in organic and flexible electronic and optoelectronic devices. An archetypal conducting polymer is poly(3,4‐ethylenedioxythiophene)‐poly(styrenesulfonate) (PEDOT:PSS), which can feature a high work function and thus helps achieving Ohmic contacts for holes with many semiconductors. However, it is known that residual water in PEDOT:PSS films lowers their work function and is detrimental for device lifetime. Our photoelectron spectroscopy experiments reveal that the work function of PEDOT:PSS films containing residual water shows the same trend as function of temperature as does the dielectric constant (ε) of water, in the range between 25 °C and ‐100 °C. Consistently, it is found from impedance spectroscopy measurements that ε of residual water containing PEDOT:PSS films increases with decreasing temperature. After removal of residual water from PEDOT:PSS films by annealing in ultrahigh vacuum, the work function of thin films is much higher than before (reaching 6.1 eV) and, notably, independent of temperature. In contrast, no indication is found that the presence of residual water has any impact on the electrical conductivity. For a nominally water‐free molecularly doped conjugated donor/acceptor copolymer films, a correlation between sample work function and temperature similar to those seen for PEDOT:PSS is found.
Affine permutations and rational slope parking functions
Creators: name: Gorsky, Eugene
name: Mazin, Mikhail
name: Vazirani, Monica
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We introduce a new approach to the enumeration of rational slope parking functions with respect to the area and a generalized dinv statistics, and relate the combinatorics of parking functions to that of affine permutations. We relate our construction to two previously known combinatorial constructions: Haglund's bijection exchanging the pairs of statistics (area,dinv) and (bounce,area) on Dyck paths, and Pak-Stanley labeling of the regions of k-Shi hyperplane arrangements by k-parking functions. Essentially, our approach can be viewed as a generalization and a unification of these two constructions. We also relate our combinatorial constructions to representation theory. We derive new formulas for the Poincare polynomials of certain affine Springer fibers and describe a connection to the theory of finite dimensional representations of DAHA and nonsymmetric Macdonald polynomials.
description: 30 pages, 13 figures
ArrayFlex: A Systolic Array Architecture with Configurable Transparent Pipelining
Creators: name: Peltekis, C.
name: Filippas, D.
name: Dimitrakopoulos, G.
name: Nicopoulos, C.
name: Pnevmatikatos, D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Hardware Architecture (cs.AR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Convolutional Neural Networks (CNNs) are the state-of-the-art solution for many deep learning applications. For maximum scalability, their computation should combine high performance and energy efficiency. In practice, the convolutions of each CNN layer are mapped to a matrix multiplication that includes all input features and kernels of each layer and is computed using a systolic array. In this work, we focus on the design of a systolic array with configurable pipeline with the goal to select an optimal pipeline configuration for each CNN layer. The proposed systolic array, called ArrayFlex, can operate in normal, or in shallow pipeline mode, thus balancing the execution time in cycles and the operating clock frequency. By selecting the appropriate pipeline configuration per CNN layer, ArrayFlex reduces the inference latency of state-of-the-art CNNs by 11%, on average, as compared to a traditional fixed-pipeline systolic array. Most importantly, this result is achieved while using 13%-23% less power, for the same applications, thus offering a combined energy-delay-product efficiency between 1.4x and 1.8x.
description: DATE 2023
A gender approach to oncology: the three level obstacles of an Italian case study
Creators: name: Gaiaschi, Camilla
name: Veneri, Camilla
name: Maugeri, Paolo
name: Cacace, Marina
name: D'Andrea, Luciano
name: Chiocca, Susanna
Publisher: name: Zenodo
Year: 2023
Subjects: Gender
Oncology

description: A gender approach to oncology: the three level obstacles of an Italian case study
QUARTZ LUMINESCENCE DISCRIMINATES STRATIGRAPHIC SEQUENCES AND INDICATES CHANGES IN PALEORELIEF OF SEDIMENT SOURCE AREAS OF SANDSTONES FROM THE PARNAÍBA BASIN
Creators: name: Del Rio, Ian
name: Sawakuchi, André O.
name: Góes, Ana M.
name: Hollanda, Maria Helena B.M.
name: Porat, Naomi
name: Jain, Mayank
name: Mineli, Thays D.
name: Negri, Francisco
Publisher: name: Zenodo
Year: 2020
Subjects: OSL and TL sensitivity
Provenance
Sediment recycling
Source to sink
Parnaíba Basin

description: RESUMO – The sensitivity of optically stimulated luminescence (OSL) and thermoluminescence (TL) signals of quartz from Pleistocene and Holocene sediments has been used as a proxy for provenance and past environmental conditions of source-to-sink sedimentary systems. Here, we use a similar approach to investigate the application of OSL, IRSL and TL sensitivities to discriminate Silurian to Triassic siliciclastic sedimentary units of the Parnaíba basin and to infer the geomorphic conditions of sediment source during basin filling. We also explore the position of the well-known “110 °C” (TL110) and “325 °C” (TL325) TL peaks of quartz as proxies to discriminate stratigraphic units. Luminescence measurements were carried out on sand grains and statistical tests were applied to evaluate differences in the luminescence characteristics between and within stratigraphic units. OSL and TL sensitivities progressively increase from Silurian to Triassic sedimentary units as well as the dominance of the so-called fast OSL component of quartz, while the IRSL decreases towards younger stratigraphic units. This pattern points to source areas with increasing lower relief and higher sediment recycling from within the basin over time. The TL110 peak position is uniform, without significant differences among stratigraphic units, but the TL325 peak position has significant variation from 324 to 334 °C. The possible causes for variations in the studied luminescence characteristics are discussed. These luminescence characteristics of quartz are potential new tools to apply in stratigraphic analysis of siliciclastic successions and for interpreting geomorphic conditions during basin evolution.
Hydrodynamic gauge fixing and higher order hydrodynamic expansion
Creators: name: De Nardis, Jacopo
name: Doyon, Benjamin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Hydrodynamics is a powerful emergent theory for the large-scale behaviours in many-body systems, quantum or classical. It is a gradient series expansion, where different orders of spatial derivatives provide an effective description on different length scales. We here report the first general derivation of third-order, or "dispersive", terms in the hydrodynamic expansion. We obtain fully general Kubo-like expressions for the associated hydrodynamic coefficients, and we determine their expressions in quantum integrable models, introducing in this way purely quantum higher-order terms into generalised hydrodynamics. We emphasise the importance of hydrodynamic gauge fixing at diffusive order, where we claim that it is parity-time-reversal, and not time-reversal, invariance that is at the source of Einstein's relation, Onsager's reciprocal relations, the Kubo formula and entropy production. At higher hydrodynamic orders we introduce a more general, n-th order "symmetric" gauge, which we show implies the validity of the higher-order hydrodynamic description.
Accurate VLBI astrometry and strong lensing as a direct test to the LambdaCDM model
Creators: name: Spingola, Cristiana
Publisher: name: Zenodo
Year: 2024

description: Accurate astrometry of strong lensing systems can address fundamental open questions in cosmology. In particular, the micro-arsec astrometric accuracy achievable with Very Long Baseline Interferometry (VLBI) can infer the nature of dark matter, as it allows to directly detect at high significance the milliarcsec-level gravitational effect of the (expected) sub-halos on the lensed images.  Our results on the astrometry of VLBI-observed gravitational arcs can constrain the dark matter particle mass at the same level of  the number statistics of the satellites of our Galaxy and demonstrate the power of the method, anticipating what SKA-VLBI will be able to reveal.

Strong lensing also provides a magnified view of distant background sources, which cannot be detected and spatially resolved with current instruments. With a multi-band dataset that includes VLBI, HST and Chandra observations, we started a systematic astrometric analysis to search for offset and dual AGN at high-z. Our results reveal multi-band offsets on hundreds of parsecs in sources at z > 1 and we found a dual AGN candidate that, if confirmed, implies an order of magnitude mismatch between the observed and predicted dual AGN systems. 

Accurate astrometry is also important for finding strong lenses. I will discuss our effort in developing efficient methods to find lenses using wide-field radio surveys, in preparation for the SKA1-MID surveys that will reveal 10^5 strong lenses.
Faculty contributions to undergraduate STEMM student mental health : a qualitative case study approach
Creators: name: Ortega, Andrea
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: Mental health
College
University
Faculty
Science
Technology
Math
Engineering
Wellbeing
STEMM
STEM

description: Mental health concerns on U.S. college campuses have garnered much attention in recent years (Lipson et al., 2019; Oswalt et al., 2018; Watkins et al., 2012). The prevalence of mental illness among college student populations contrasts with research reporting that many students do not seek treatment (Ebert et al., 2019; Nestor et al., 2016). The problem for this study is that current college mental health treatment leaves a large number of the population undertreated or not treated. In particular, there is limited research on faculty involvement in the mental health of the undergraduate STEMM (science, technology, engineering mathematics, and medicine) population. The purpose of this study was to explore how faculty view their role concerning undergraduate STEMM student mental health. In addition, it intended to understand how faculty members make sense of their roles as they pertain to student mental health. These methods included a document review, a demographic questionnaire, semi-structured interviews, and field notes. Using Ray’s (2019) theory of racialized organizations and Bronfenbrenner’s (1979) ecological systems theory, the study examined faculty contributions to the mental health of undergraduate STEMM students.
A U-Net Deep Learning Framework for High Performance Vessel Segmentation in Patients With Cerebrovascular Disease
Creators: name: Livne, Michelle
name: Rieger, Jana
name: Aydin, Orhun Utku
name: Taha, Abdel Aziz
name: Akay, Ela Marie
name: Kossen, Tabea
name: Sobesky, Jan
name: Kelleher, John D.
name: Hildebrand, Kristian
name: Frey, Dietmar
name: Madai, Vince I.
Publisher: name: Zenodo
Year: 2019

description: These are the trained models ready for download as outlined in the paper.
description: {"references": ["Livne, Michelle et al. \"A U-Net Deep Learning Framework for High Performance Vessel Segmentation in Patients With Cerebrovascular Disease\". Frontiers in Neuroscience, Bd. 13, 2019. Frontiers, doi:10.3389/fnins.2019.00097."]}
Wie fülle ich einen Datenmanagementplan aus? Eine Schritt-für-Schritt Anleitung für Geisteswissenschaftler*innen
Creators: name: Hannesschläger, Vanessa
name: Trognitz, Martina
name: Blumesberger, Susanne
Publisher: name: Zenodo
Year: 2020
Subjects: Forschungsdaten
Forschungsdatenmanagement
Datenmanagement
FDM
Geisteswissenschaften

description: Seit einiger Zeit werden für Drittmittelprojekte von einigen fördergebenden Institutionen Datenmanagementpläne (DMPs) verlangt. Besonders in den Geisteswissenschaften ist diese Art, Forschungsmaterialien und -ergebnisse zu erfassen, oft noch nicht verbreitet und stellt Forscher*innen daher oft vor Herausforderungen. In diesem Workshop wird der DMP des FWF als Beispiel Schritt für Schritt besprochen und beispielhafte Antworten aus klassischen geisteswissenschaftlichen Projekten gegeben. Veranstaltungswebsite: https://datamanagement.univie.ac.at/forschungsdatenmanagement/veranstaltungsreihe-forschungsdatenmanagement/ Videoaufzeichnung der Veranstaltung: https://phaidra.univie.ac.at/view/o:1123047
On the Impact of LTE-U on Wi-Fi Performance
Creators: name: Babaei, Alireza
name: Andreoli-Fang, Jennifer
name: Hamzeh, Belal
Publisher: name: arXiv
Year: 2022
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: With the exponential growth in mobile data traffic taking place currently and projected into the future, mobile operators need cost effective ways to manage the load of their networks. Traditionally, this has been achieved by offloading mobile traffic onto Wi-Fi networks due to their low cost and ubiquitous deployment. Recently, LTE operating in the unlicensed spectrum has drawn significant interests from mobile operators due to the availability of the unlicensed spectrum. However, the deployment of LTE networks in the unlicensed band poses significant challenges to the performance of current and future Wi-Fi networks. We discuss the LTE and Wi-Fi coexistence challenges and present analysis on performance degradation of the Wi-Fi networks at the presence of LTE.
description: 2014 IEEE 25th Annual International Symposium on Personal, Indoor, and Mobile Radio Communication (PIMRC)
Short History of Nuclear Many-Body Problem
Creators: name: Köhler, H. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: This is a very short presentation regarding developments in the theory of nuclear many-body problems, as seen and experienced by the author during the past 60 years with particular emphasis on the contributions of Gerry Brown and his research-group. Much of his work was based on Brueckner's formulation of the nuclear many-body problem. It is reviewed briefly together with the Moszkowski-Scott separation method that was an important part of his early work. The core-polarisation and his work related to effective interactions in general are also addressed.
description: Gerry Brown in Memory; Nucl. Phys. A
Signatures of a High Temperature QCD Transition in the Early Universe
Creators: name: Lu, Philip
name: Takhistov, Volodymyr
name: Fuller, George M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Beyond Standard Model extensions of QCD could result in quark and gluon confinement occurring well above a temperature of $\sim$GeV. These models can also alter the order of the QCD phase transition. The enhanced production of primordial black holes (PBHs) that can accompany the change in relativistic degrees of freedom at the QCD transition therefore could favor the production of PBHs with mass scales smaller than the Standard Model QCD horizon scale. Consequently, and unlike PBHs associated with a standard GeV-scale QCD transition, such PBHs can account for all the dark matter abundance in the unconstrained asteroid-mass window. This links beyond Standard Model modifications of QCD physics over a broad range of unexplored temperature regimes ($\sim 10-10^3$ TeV) with microlensing surveys searching for PBHs. Additionally, we discuss implications of these models for gravitational wave experiments. We show that a first order QCD phase transition at $\sim7$ TeV is consistent with the Subaru Hyper-Suprime Cam candidate event, while a $\sim 70$ GeV transition is consistent with OGLE candidate events, and also could account for the claimed NANOGrav gravitational wave signal.
description: 9 pages, 3 figures; version published in PRL
ASSESSMENT OF WATER LOSS IN WATER SUPPLY NETWORK A CASE OF DEBRE MARKOS TOWN
Creators: name: MEBET ADMASS DINKU
Publisher: name: Zenodo
Year: 2007

description: Problems in provision of adequate water supply to the rapidly growing urban

population in developing cities are increasing dramatically. As a-result demand for

additional water sources and infrastructure is growing. Moreover, nearly 50% of the

water produced is lost at different levels of the distribution system before reaching the

consumers. Debre Markos is one of the developing cities suffering a high shortage of

water as well as high water loss. Both financial and technical constraints are the main

bottlenecks that hamper the city to satisfy the highly growing needs of its residents .

Quantifying and characterizing water loss and leakage in a city water supply system

is by its nature a complex task. Leakage identification needs detailed field

investigation sometimes using sophisticated equipment. In this study, an attempt is

made to evaluate both the water loss and economic level of leakage with the

available primary and secondary data.
Gene expression response to a nematode parasite in novel and native eel hosts
Creators: name: Bracamonte, Seraina Emilia
name: Johnston, Paul R.
name: Monaghan, Michael T.
name: Knopf, Klaus
Publisher: name: Humboldt-Universität zu Berlin
Year: 2019
Subjects: subject: Anguilla anguilla
subject: Anguilla japonica
subject: Anguillicola crassus
subject: comparative transcriptomics
subject: emerging infectious disease
subject: host-parasite interaction
subject: 570 Biologie
subject: 610 Medizin und Gesundheit

description: Invasive parasites are involved in population declines of new host species worldwide. The high susceptibilities observed in many novel hosts have been attributed to the lack of protective immunity to the parasites which native hosts acquired during their shared evolution. We experimentally infected Japanese eels (Anguilla japonica) and European eels (Anguilla anguilla) with Anguillicola crassus, a nematode parasite that is native to the Japanese eel and invasive in the European eel. We inferred gene expression changes in head kidney tissue from both species, using RNA-seq data to determine the responses at two time points during the early stages of infection (3 and 23 days postinfection). At both time points, the novel host modified the expression of a larger and functionally more diverse set of genes than the native host. Strikingly, the native host regulated immune gene expression only at the earlier time point and to a small extent while the novel host regulated these genes at both time points. A low number of differentially expressed immune genes, especially in the native host, suggest that a systemic immune response was of minor importance during the early stages of infection. Transcript abundance of genes involved in cell respiration was reduced in the novel host which may affect its ability to cope with harsh conditions and energetically demanding activities. The observed gene expression changes in response to a novel parasite that we observed in a fish follow a general pattern observed in amphibians and mammals, and suggest that the disruption of physiological processes, rather than the absence of an immediate immune response, is responsible for the higher susceptibility of the novel host.
Data harmonization in genomic medicine: GPU-accelerated bioinformatics methods for transcriptome analysis
Creators: name: Bazelle Pauline
name: Bardet Etienne
name: Christophe, Battail
Publisher: name: Zenodo
Year: 2022

description: As part of the European KATY project, a personalized medicine project aimed at developing predictive AI models of the response of patients with kidney cancer to anti-tumor therapies, one of the challenges consists in collecting and harmonizing the reprocessing of transcriptomic profiling data from tumor tissue cohorts. The need to process large data has led to the establishment of a collaboration with NIVIDIA in order to assess the performance and relevance of bioinformatics processing chains carried on GPUs.
International Conference on Machine Learning, IOT and Blockchain (MLIOB 2020)
Creators: name: International Conference on Machine Learning, IOT and  Blockchain (MLIOB 2020)
Publisher: name: Zenodo
Year: 2020

description: Invite to Submit your Articles...!!! International Conference on Machine Learning, IOT and Blockchain (MLIOB 2020)
 November 28 ~ 29, 2020, Dubai, UAE Due to the current COVID-19 pandemic, registered authors are now able to present their work through our online platforms New Webpage Link: https://aisca2020.org/mliob/index.html Submission Deadline - 10.10.2020 Submission Link: https://aisca2020.org/submission/index.php Contact Us: mliob@aisca2020.org
Feasibility Study of an Electron Storage Ring for Coronary Angiography
Creators: name: Brinker, F.
name: Febel, A.
name: Hemmie, G.
name: Liu, N.
name: Nesemann, H.
name: Schmitz, M.
name: Tesch, K.
name: Wipf, S.
name: DESY
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2000

description: M-Report (2000).
Social contagion induced by uncertain information
Creators: name: Kobayashi, Teruyoshi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Information and individual activities often spread globally through the network of social ties. While social contagion phenomena have been extensively studied within the framework of threshold models, it is common to make an assumption that may be violated in reality: each individual is able to observe the neighbors' states without error. Here, we analyze the dynamics of global cascades under uncertainty in an otherwise standard threshold model. Each individual uses statistical inference to estimate the probability distribution of the number of active neighbors when deciding whether to be active, which gives a probabilistic threshold rule. Unlike the deterministic threshold model, the spreading process is generally non-monotonic as the inferred distribution of neighbors' states may be updated as a new signal arrives. We find that social contagion may arise as a self-fulfilling event in that misperception may trigger a cascade in regions where cascades would never occur under certainty.
description: 10 pages, 7 figures
Effectivized Holder-logarithmic stability estimates for the Gel'fand inverse problem
Creators: name: Isaev, Mikhail
name: Novikov, Roman
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We give effectivized Holder-logarithmic energy and regularity dependent stability estimates for the Gel'fand inverse boundary value problem in dimension $d=3$. This effectivization includes explicit dependance of the estimates on coefficient norms and related parameters. Our new estimates are given in $L^2$ and $L^\infty$ norms for the coefficient difference and related stability efficiently increases with increasing energy and/or coefficient difference regularity. Comparisons with preceeding results are given.
Longest Common Substring in Longest Common Subsequence's Solution Service: A Novel Hyper-Heuristic
Creators: name: Abdi, Alireza
name: Hajsaeedi, Masih
name: Hooshmand, Mohsen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: The Longest Common Subsequence (LCS) is the problem of finding a subsequence among a set of strings that has two properties of being common to all and is the longest. The LCS has applications in computational biology and text editing, among many others. Due to the NP-hardness of the general longest common subsequence, numerous heuristic algorithms and solvers have been proposed to give the best possible solution for different sets of strings. None of them has the best performance for all types of sets. In addition, there is no method to specify the type of a given set of strings. Besides that, the available hyper-heuristic is not efficient and fast enough to solve this problem in real-world applications. This paper proposes a novel hyper-heuristic to solve the longest common subsequence problem using a novel criterion to classify a set of strings based on their similarity. To do this, we offer a general stochastic framework to identify the type of a given set of strings. Following that, we introduce the set similarity dichotomizer ($S^2D$) algorithm based on the framework that divides the type of sets into two. This algorithm is introduced for the first time in this paper and opens a new way to go beyond the current LCS solvers. Then, we present a novel hyper-heuristic that exploits the $S^2D$ and one of the internal properties of the set to choose the best matching heuristic among a set of heuristics. We compare the results on benchmark datasets with the best heuristics and hyper-heuristics. The results show a higher performance of our proposed hyper-heuristic in both quality of solutions and run time factors.
Quasinormal modes, shadow and thermodynamics of black holes coupled with nonlinear electrodynamics and cloud of strings
Creators: name: Singh, Dharm Veer
name: Shukla, Aradhya
name: Upadhyay, Sudhaker
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct an exact black hole solution for the Einstein gravity coupled with the nonlinear electrodynamics (which corresponds to the Maxwell electrodynamics in the weak field limit) in the presence of a cloud of strings as the source. We study the thermodynamical properties of the black hole solutions and derive the corrected first-law of thermodynamics. The presence of a cloud of strings does not affect the stability of the present black hole. However, a second-order phase transition exists for this system at a critical horizon radius. Furthermore, we study the quasinormal modes and their shadow radius. In addition, we find that, upon variation, the parameters of the theory show different aspects of the optical characteristics of the black hole solutions.
description: 12 pages, 11 captioned figures, published in Annals of Physics
LSE Research Data Management Data Sharing Objections FAQs and Naughts and Crosses Game
Creators: name: Horton, Laurence
Publisher: name: Zenodo
Year: 2016
Subjects: Research Data Management
Game
Naughts and Crosses
Data sharing
Objections
Tic-tac-toe
X and O

description: This collection comprises of a set of common objections to data sharing. There are two components. One is a pdf of common objections to data sharing, with suggested responses to these objections. The other are powerpoint slides for game of naughts and crosses (also known as Tic-tac-toe or X and O) based on these common objections to data sharing. Like the TV version, players are expected to win the square by, in this case, providing a satisfactory response to a data sharing objection. There are two versions of the game. One is a plain slide version, another is a version using a screen shot from the 1970s British comedy game show, "Celebrity Squares".
On the reduction modulo p of representations of a quaternion division algebra over a p-adic field
Creators: name: Tokimoto, Kazuki
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: Let F be a non-Archimedean local field of residue characteristic p. In this paper, we first compute the reduction modulo p of irreducible smooth representations of a quaternion division algebra over F and of two-dimensional irreducible smooth representations of the Weil group of F. It turns out that a natural correspondence of mod p representations of the two groups and the composite of the local Langlands and Jacquet-Langlands correspondence are not compatible with the reduction, except in the cases considered by Vigneras.
description: 33 pages
Prospects for measuring dark energy with 21 cm intensity mapping experiments: A joint survey strategy
Creators: name: Wu, Peng-Ju
name: Li, Yichao
name: Zhang, Jing-Fei
name: Zhang, Xin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The 21 cm intensity mapping (IM) technique provides us with an efficient way to observe the cosmic large-scale structure (LSS). From the LSS data, one can use the baryon acoustic oscillation and redshift space distortion to trace the expansion and growth history of the universe, and thus measure the dark energy parameters. In this paper, we make a forecast for cosmological parameter estimation with the synergy of three 21 cm IM experiments. Specifically, we adopt a novel joint survey strategy, FAST ($0
description: 10 pages, 6 figures; accepted for publication in Science China-Physics, Mechanics & Astronomy
Black holes as bubble nucleation sites
Creators: name: Gregory, Ruth
name: Moss, Ian G.
name: Withers, Benjamin
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the effect of inhomogeneities on the rate of false vacuum decay. Modelling the inhomogeneity by a black hole, we construct explicit Euclidean instantons which describe the nucleation of a bubble of true vacuum centred on the inhomogeneity. We find that inhomogeneity significantly enhances the nucleation rate over that of the Coleman-de Luccia instanton -- the black hole acts as a nucleation site for the bubble. The effect is larger than previously believed due to the contributions to the action from conical singularities. For a sufficiently low initial mass, the original black hole is replaced by flat space during this process, as viewed by a single causal patch observer. Increasing the initial mass, we find a critical value above which a black hole remnant survives the process. This resulting black hole can have a higher mass than the original black hole, but always has a lower entropy. We compare the process to bubble-to-bubble transitions, where there is a semi-classical Lorentzian description in the WKB approximation.
description: 30 pages, 9 figures, PDFLaTex
The Primordial Particle Accelerator of the Cosmos
Creators: name: Yahalom, Asher
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In a previous paper we have shown that superluminal particles are allowed by the general relativistic theory of gravity provided that the metric is locally Euclidean. Here we calculate the probability density function of a canonical ensemble of superluminal particles as function of temperature. This is done for both space-times invariant under Lorentz symmetry group, and for space times invariant under an Euclidean symmetry group. Although only the Lorentzian metric is stable for normal matter density, an Euclidian metric can be created under special gravitational circumstances and persist in a limited region of space-time consisting of the very early universe which is characterized by extremely high densities and temperatures. Superluminal particles also allow attaining thermodynamic equilibrium at a shorter duration and also suggest a rapid expansion of the matter density, thus making mechanism such as inflation (which demands invoking and ad-hoc scalar field) redundant. This is in accordance with Occam's razor.
description: 28 pages, 24 figures. arXiv admin note: text overlap with arXiv:gr-qc/0611124
NuSTAR Discovery of a Young, Energetic Pulsar Associated with the Luminous Gamma-ray Source HESS J1640-465
Creators: name: Gotthelf, E. V.
name: Tomsick, J. A.
name: Halpern, J. P.
name: Gelfand, J. D.
name: Harrison, F. A.
name: Boggs, S. E.
name: Christensen, F. E.
name: Craig, W. W.
name: Hailey, J. C.
name: Kaspi, V. M.
name: Stern, D. K.
name: Zhang, W. W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the discovery of a 206 ms pulsar associated with the TeV gamma-ray source HESS J1640-465 using the Nuclear Spectroscopic Telescope Array (NuSTAR) X-ray observatory. PSR J1640-4631 lies within the shell-type supernova remnant (SNR) G338.3-0.0, and coincides with an X-ray point source and putative pulsar wind nebula (PWN) previously identified in XMM-Newton and Chandra images. It is spinning down rapidly with period derivative Pdot = 9.758(44)E-13, yielding a spin-down luminosity Edot = 4.4E36 erg s-1, characteristic age = P/2Pdot = 3350 yr, and surface dipole magnetic field strength Bs = 1.4E13 G. For the measured distance of 12 kpc to G338.3-0.0, the 0.2 - 10 TeV luminosity of HESS J1640-465 is 6% of the pulsar's present Edot. The Fermi source 1FHL J1640.5-4634 is marginally coincident with PSR J1640-4631, but we find no gamma-ray pulsations in a search using 5 years of Fermi Large Area Telescope (LAT) data. The pulsar energetics support an evolutionary PWN model for the broad-band spectrum of HESS J1640-465, provided that the pulsar's braking index is approximately 2, and that its initial spin period was Po ~ 15 ms.
description: 9 pages, 5 figures, 5 tables, Latex emulatapj style. Accepted for publication in the Astrophysical Journal
Interval estimations in metrology
Creators: name: Mana, Giovanni
name: Palmisano, CArlo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: This paper investigates interval estimation for a measurand that is known to be positive. Both the Neyman and Bayesian procedures are considered and the difference between the two, not always perceived, is discussed in detail. A solution is proposed to a paradox originated by the frequentist assessment of the long-run success rate of Bayesian intervals.
description: 11 pages, 5 figures, submitted to Metrologia
The Implications of Ultra-Faint Dwarf Galaxy Reticulum II on the Common Envelope Jets Supernova r-process Scenario
Creators: name: Grichener, Aldana
name: Soker, Noam
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We show that the common envelope jets supernova (CEJSN) r-process scenario is compatible with very recent observationally determined properties of the stars in the ultra faint dwarf (UFD) galaxy Reticulum II that are strongly enhanced in r-process elements. These new results, like efficient mixing of the r-process elements in the Reticulum II galaxy, have some implications on the CEJSN r-process scenario for UFD galaxies. In particular, the energetic jets efficiently mix with the common envelope ejecta and then with the entire interstellar medium of Reticulum II. The compatibility that we find between the scenario and new observations suggests that the CEJSN r-process scenario supplies a non-negligible fraction of the r-process elements.
description: Accepted for publication in Research Notes of the AAS (December, 9, 2022)
Monocorophium acherusicum
Creators: name: Kakkonen, Jenni E.
name: Worsfold, Tim M.
name: Ashelby, Christopher W.
name: Taylor, Andrea
name: Beaton, Katy
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Corophiidae
Monocorophium
Monocorophium acherusicum

description: (19) Monocorophium acherusicum (Costa, 1853)
Status in U.K. – cryptogenic.
Monocorophium acherusicum has been widely recorded from the monitoring programme at several marina and pier sites, each year since 2014, from settlement panel and occasionally scrape samples.
Chapman (2000) stated that M. acherusicum is perhaps the most widely distributed and widely introduced estuarine invertebrate in the world with a potential native range in the north-west Atlantic and introduced in all other locations, including the north-east Atlantic. However, Marchini and Cardeccia (2017) were of the opinion that, although potentially native to the North Atlantic, the true origins of M. acherusicum may never be known since it is now so widespread. Here we regard it as cryptogenic in the U.K.
description: Published as part of Kakkonen, Jenni E., Worsfold, Tim M., Ashelby, Christopher W., Taylor, Andrea & Beaton, Katy, 2019, The value of regular monitoring and diverse sampling techniques to assess aquatic non-native species: a case study from Orkney, pp. 46-79 in Management of Biological Invasions 10 (1) on page 58, DOI: 10.3391/mbi.2019.10.1.04, http://zenodo.org/record/11969078