cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Goodness-of-fit tests for the functional linear model based on randomly projected empirical processes
Creators: name: Cuesta-Albertos, Juan A.
name: García-Portugués, Eduardo
name: Febrero-Bande, Manuel
name: González-Manteiga, Wenceslao
Publisher: name: arXiv
Year: 2017
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: 62G10, 62J05, 62G09

description: We consider marked empirical processes indexed by a randomly projected functional covariate to construct goodness-of-fit tests for the functional linear model with scalar response. The test statistics are built from continuous functionals over the projected process, resulting in computationally efficient tests that exhibit root-n convergence rates and circumvent the curse of dimensionality. The weak convergence of the empirical process is obtained conditionally on a random direction, whilst the almost surely equivalence between the testing for significance expressed on the original and on the projected functional covariate is proved. The computation of the test in practice involves calibration by wild bootstrap resampling and the combination of several p-values, arising from different projections, by means of the false discovery rate method. The finite sample properties of the tests are illustrated in a simulation study for a variety of linear models, underlying processes, and alternatives. The software provided implements the tests and allows the replication of simulations and data applications.
description: Paper: 23 pages, 4 figures, 1 table. Supplementary material: 17 pages, 4 figures, 3 tables
Can damage observations from the 2019 Le Teil (France) earthquake challenge ESHM20 and ESRM20?
Creators: name: Trevlopoulos, K
name: Gehl, P
name: Negulescu, C
Publisher: name: arXiv
Year: 2024
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Probabilistic seismic hazard and risk models are essential to improving our awareness of seismic risk, to its management, and to increasing our resilience against earthquake disasters. These models consist of a series of components, which may be tested and validated individually, however testing and validating these types of models as a whole is challenging due to the lack of recognised procedures. Estimations made with other models, as well as observations of ground shaking and damages in past earthquakes lend themselves to testing the components for ground motion modelling and for the severity of damage to buildings. Here, we are using observations of damages caused by the Le Teil 2019 earthquake, third-party estimations of macroseismic intensity for this seismic event, and ShakeMap analyses in order to make comparisons with estimations made with scenario simulations using model components developed in the context of the 2020 Euro-Mediterranean Seismic Hazard Model and the European Seismic Risk Model. The comparisons concern the estimated ground motion intensity measures, the macroseismic intensity, the number of damaged buildings, and the probabilities of the damage grade. The divergences of the estimations from the observations, which are observed in some of comparisons, are attributed to factors external to the models, such as the location of the hypocentre.
Striped Magnetic Ground State of the Kagome Lattice in Fe4Si2Sn7O16
Creators: name: Ling, C. D.
name: Allison, M. C.
name: Schmid, S.
name: Adveev, M.
name: Gardner, J. S.
name: Wang, C. -W.
name: Ryan, D. H.
name: Zbiri, M.
name: Soehnel, T.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have experimentally identified a new magnetic ground state for the kagome lattice, in the perfectly hexagonal Fe2+ (3d6, S = 2) compound Fe4Si2Sn7O16. Representational symmetry analysis of neutron diffraction data shows that below T_N = 3.5 K, the spins on 2/3 of the magnetic ions order into canted antiferromagnetic chains, separated by the remaining 1/3 which are geometrically frustrated and show no long-range order down to at least T = 0.1 K. Moessbauer spectroscopy confirms that there is no static order on the latter 1/3 of the magnetic ions - i.e., they are in a liquid-like rather than a frozen state - down to at least 1.65 K. A heavily Mn-doped sample Fe1.45Mn2.55Si2Sn7O16 has the same magnetic structure. Although the propagation vector q = (0, 1/2 , 1/2 ) breaks hexagonal symmetry, we see no evidence for magnetostriction in the form of a lattice distortion within the resolution of our data. We discuss the relationship to partially frustrated magnetic order on the pyrochlore lattice of Gd2Ti2O7, and to theoretical models that predict symmetry breaking ground states for perfect kagome lattices.
description: 5 pages, 5 figures
Novel effective fluorinated benzothiophene-indole hybrid antibacterials against S. aureus and MRSA strains
Creators: name: Seethaler, Marius Michael
name: Hertlein, Tobias
name: Hopke, Elisa
name: Köhling, Paul
name: Ohlsen, Knut
name: Lalk, Michael
name: Hilgeroth, Andreas
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2022
Subjects: subject: 615

description: Increasing antibacterial drug resistance threatens global health, unfortunately, however, efforts to find novel antibacterial agents have been scaled back by the pharmaceutical industry due to concerns about a poor return on investment. Nevertheless, there is an urgent need to find novel antibacterial compounds to combat antibacterial drug resistance. The synthesis of novel drugs from natural sources is mostly cost-intensive due to those drugs’ complicated structures. Therefore, it is necessary to find novel antibacterials by simple synthesis to become more attractive for industrial production. We succeeded in the discovery of four antibacterial compound (sub)classes accessible in a simple one-pot reaction based on fluorinated benzothiophene-indole hybrids. They have been evaluated against various S. aureus and MRSA strains. Structure- and substituent-dependent activities have been found within the (sub)classes and promising lead compounds have been identified. In addition, bacterial pyruvate kinase was found to be the molecular target of the active compounds. In conclusion, simple one-pot synthesis of benzothiophene-indoles represents a promising strategy for the search of novel antimicrobial compounds.
XOTIN-QIZLARNI QO'LLAB-QUVVATLASH VA AYOLLAR HUQUQLARINI HIMOYA QILISHDA XALQARO VA MILLIY MEXANIZMLAR
Creators: name: Yo'ldashova, Sevara
Publisher: name: Zenodo
Year: 2024

description: Ushbu maqolada xotin-qizlarni har tomonlama qo‘llab-quvvatlash chora tadbirlari, shuningdek ayollar huquqlarini himoya qilishda xalqaro va milliy mexanizmlar va hozirgi kunda yurtimizda  amalga oshirilayotgan islohatlar to‘g‘risida ma’lumot berilgan.
SpectroGLY: A Low-Cost IoT-Based Ecosystem for the Detection of Glyphosate Residues in Waters
Creators: name: Aira, Javier
name: Olivares, Teresa
name: Delicado, Francisco M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Glyphosate contamination in waters is becoming a major health problem that needs to be urgently addressed, as accidental spraying, drift or leakage of this highly water-soluble herbicide can impact aquatic ecosystems. Researchers are increasingly concerned about exposure to glyphosate and the risks its poses to human health, since it may cause substantial damage, even in small doses. The detection of glyphosate residues in waters is not a simple task, as it requires complex and expensive equipment and qualified personnel. New technological tools need to be designed and developed, based on proven, but also cost-efficient, agile and user-friendly, analytical techniques, which can be used in the field and in the lab, enabled by connectivity and multi-platform software applications. This paper presents the design, development and testing of an innovative low-cost VIS-NIR (Visible and Near-Infrared) spectrometer (called SpectroGLY), based on IoT (Internet of Things) technologies, which allows potential glyphosate contamination in waters to be detected. SpectroGLY combines the functional concept of a traditional lab spectrometer with the IoT technological concept, enabling the integration of several connectivity options for rural and urban settings and digital visualization and monitoring platforms (Mobile App and Dashboard Web). Thanks to its portability, it can be used in any context and provides results in 10 minutes. Additionally, it is unnecessary to transfer the sample to a laboratory (optimizing time, costs and the capacity for corrective actions by the authorities). In short, this paper proposes an innovative, low-cost, agile and highly promising solution to avoid potential intoxications that may occur due to ingestion of water contaminated by this herbicide.
Multitracer CMB delensing maps from Planck and WISE data
Creators: name: Yu, Byeonghee
name: Hill, J. Colin
name: Sherwin, Blake D.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Delensing, the removal of the limiting lensing B-mode background, is crucial for the success of future cosmic microwave background (CMB) surveys in constraining inflationary gravitational waves (IGWs). In recent work, delensing with large-scale structure tracers has emerged as a promising method both for improving constraints on IGWs and for testing delensing methods for future use. However, the delensing fractions (i.e., the fraction of the lensing-B mode power removed) achieved by recent efforts have been only $20-30\%$. In this work, we provide a detailed characterization of a full-sky, dust-cleaned cosmic infrared background (CIB) map for delensing and construct a further-improved delensing template by adding additional tracers to increase delensing performance. In particular, we build a multitracer delensing template by combining the dust-cleaned Planck CIB map with a reconstructed CMB lensing map from Planck and a galaxy number density map from the Wide-field Infrared Survey Explorer (WISE) satellite. For this combination, we calculate the relevant weightings by fitting smooth templates to measurements of all the cross- and auto-spectra of these maps. On a large fraction of the sky ($f_\mathrm{sky}=0.43$), we demonstrate that our maps are capable of providing a delensing factor of $43 \pm 1\%$; using a more restrictive mask ($f_\mathrm{sky}=0.11$), the delensing factor reaches $48 \pm 1\%$. For low-noise surveys, our delensing maps, which cover much of the sky, can thus improve constraints on the tensor-to-scalar ratio ($r$) by nearly a factor of 2. The delensing tracer maps are made publicly available, and we encourage their use in ongoing and upcoming B-mode surveys.
description: 10 pages, 7 figures, data products available at http://www.sns.ias.edu/~jch/delens/
An inhomogeneous controlled branching process
Creators: name: González, Miguel
name: Minuesa, Carmen
name: Mota, Manuel
name: del Puerto, Inés
name: Ramos, Alfonso
Publisher: name: arXiv
Year: 2024
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: A discrete time branching process where the offspring distribution is generation-dependent, and the number of reproductive individuals is controlled by a random mechanism is considered. This model is a Markov chain but, in general, the transition probabilities are non-stationary. Under not too restrictive hypotheses, this model presents the classical duality of branching processes: either becomes extinct almost surely or grows to infinity. Sufficient conditions for the almost sure extinction and for a positive probability of indefinite growth are provided. Finally rates of growth of the process provided the non-extinction are studied.
description: 15 pages. This is a plain preprint version of the article that was published, after peer review, and is subject to Springer Nature's terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s10986-015-9265-0
Additional file 2 of Prognostic and predictive value of endothelial dysfunction biomarkers in sepsis-associated acute kidney injury: risk-stratified analysis from a prospective observational cohort of pediatric septic shock
Creators: name: Atreya, Mihir R.
name: Cvijanovich, Natalie Z.
name: Fitzgerald, Julie C.
name: Weiss, Scott L.
name: Bigham, Michael T.
name: Jain, Parag N.
name: Schwarz, Adam J.
name: Lutfi, Riad
name: Nowak, Jeffrey
name: Allen, Geoffrey L.
name: Thomas, Neal J.
name: Grunwell, Jocelyn R.
name: Baines, Torrey
name: Quasney, Michael
name: Haileselassie, Bereketeab
name: Alder, Matthew N.
name: Goldstein, Stuart L.
name: Stanski, Natalja L.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
classificationCode: 19999
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Science Policy

description: Additional file 2. Univariate associations between predictor variables and risk of D3 SA-AKI SCr.
Microscopic bosonization of band structures: X-ray processes beyond the Fermi edge
Creators: name: Snyman, Izak
name: Florens, Serge
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Bosonization provides a powerful analytical framework to deal with one-dimensional strongly interacting fermion systems, which makes it a cornerstone in quantum many-body theory. Yet, this success comes at the expense of using effective infrared parameters, and restricting the description to low energy states near the Fermi level. We propose a radical extension of the bosonization technique that overcomes both limitations, allowing computations with microscopic lattice Hamiltonians, from the Fermi level down to the bottom of the band. The formalism rests on the simple idea of representing the fermion kinetic term in the energy domain, after which it can be expressed in terms of free bosonic degrees of freedom. As a result, one- and two-body fermionic scattering processes generate anharmonic boson-boson interactions, even in the forward channel. We show that up to moderate interaction strengths, these nonlinearities can be treated analytically at all energy scales, using the x-ray emission problem as a showcase. In the strong interaction regime, we employ a systematic variational solution of the bosonic theory, and obtain results that agree quantitatively with an exact diagonalization of the original one-particle fermionic model. This provides a proof of the fully microscopic character of bosonization on all energy scales for an arbitrary band structure. Besides recovering the known x-ray edge singularity at the emission threshold, we find strong signatures of correlations even at emission frequencies beyond the band bottom.
description: 26 + 4 pages. Published version
Uniformly rotating smooth solutions for the incompressible 2D Euler equations
Creators: name: Castro, Angel
name: Córdoba, Diego
name: Gómez-Serrano, Javier
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this paper, we show the existence of a family of compactly supported smooth vorticities, which are solutions of the 2D incompressible Euler equation and rotate uniformly in time and space.
description: 58 pages
An exact result in strong wave turbulence of thin elastic plates
Creators: name: Düring, Gustavo
name: Krstulovic, Giorgio
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: An exact result concerning the energy transfers between non-linear waves of thin elastic plate is derived. Following Kolmogorov's original ideas in hydrodynamical turbulence, but applied to the Föppl-von Kármán equation for thin plates, the corresponding Kármán-Howarth-Monin relation and an equivalent of the $\frac{4}{5}$-Kolmogorov's law is derived. A third-order structure function involving increments of the amplitude, velocity and the Airy stress function of a plate, is proven to be equal to $-\varepsilon\, \ell$, where $\ell$ is a length scale in the inertial range at which the increments are evaluated and $\varepsilon$ the energy dissipation rate. Numerical data confirm this law. In addition, a useful definition of the energy fluxes in Fourier space is introduced and proven numerically to be flat in the inertial range. The exact results derived in this Letter are valid for both, weak and strong wave-turbulence. They could be used as a theoretical benchmark of new wave-turbulence theories and to develop further analogies with hydrodynamical turbulence.
Deep Neural Networks for Czech Multi-label Document Classification
Creators: name: Lenc, Ladislav
name: Král, Pavel
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: This paper is focused on automatic multi-label document classification of Czech text documents. The current approaches usually use some pre-processing which can have negative impact (loss of information, additional implementation work, etc). Therefore, we would like to omit it and use deep neural networks that learn from simple features. This choice was motivated by their successful usage in many other machine learning fields. Two different networks are compared: the first one is a standard multi-layer perceptron, while the second one is a popular convolutional network. The experiments on a Czech newspaper corpus show that both networks significantly outperform baseline method which uses a rich set of features with maximum entropy classifier. We have also shown that convolutional network gives the best results.
description: Presented at 17th International Conference on Intelligent Text Processing and Computational Linguistics (CICLing 2016), Konya, Turkey, 3-9 April 2016, pp. 460-471, Springer, ISBN: 978-3-319-75487-1
Helicity decoupling in the massless limit of massive tensor fields
Creators: name: Mund, Jens
name: Rehren, Karl-Henning
name: Schroer, Bert
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Massive and massless potentials play an essential role in the perturbative formulation of particle interactions. Many difficulties arise due to the indefinite metric in gauge theoretic approaches, or the increase with the spin of the UV dimension of massive potentials. All these problems can be evaded in one stroke: modify the potentials by suitable terms that leave unchanged the field strengths, but are not polynomial in the momenta. This feature implies a weaker localization property: the potentials are "string-localized". In this setting, several old issues can be solved directly in the physical Hilbert space of the respective particles: We can control the separation of helicities in the massless limit of higher spin fields and conversely we recover massive potentials with 2s+1 degrees of freedom by a smooth deformation of the massless potentials ("fattening"). We construct stress-energy tensors for massless fields of any helicity (thus evading the Weinberg-Witten theorem). We arrive at a simple understanding of the van Dam-Veltman-Zakharov discontinuity concerning, e.g., the distinction between a massless or a very light graviton. Finally, the use of string-localized fields opens new perspectives for interacting quantum field theories with, e.g., vector bosons or gravitons.
description: 30 pages. v4: As published. v3: Introduction completely rewritten; more quantitative treatment of the DVZ issue; references and comments added. v2: Deleted a passage erroneously claimed to be "unknown" in the appendix. An abridged version is arXiv:1703.04408
A blockchain-based e-goverment service for Quantity Surveyors
Creators: name: Alcaide, Ángel F.
name: Núnez-Gómez, Carlos
name: Delicado, Francisco M.
name: Carrión, Carmen
name: Caminero, M. Blanca
Publisher: name: arXiv
Year: 2024
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: In Spain, quantity surveyors are entitled to carry out official cadastral surveys, attestations, and certificate issuing according to a well-defined professional code. Official Associations of Quantity Surveyors and Technical Architects (COAAT) are responsible for endorsing the documentation related to actions performed on buildings. An e-platform that enables immutability, traceability, and a unique property record among all the Spanish COAATs, with an affordable cost, is essential to streamline the involved processes.
 The blockchain technology and smart contracts have recently emerged as promising solutions for e-government services due to the inherent features provided by the technology. In this paper, we identify the design goals and propose a blockchain-based e-government system for the electronic management of the documentation generated, submitted, and validated by the Spanish COAATs, namely, the COAATChain. The proposal has been deployed and evaluated on the Binance testnet blockchain, in order to assess its affordability.
Additional file 3 of Prognostic and predictive value of endothelial dysfunction biomarkers in sepsis-associated acute kidney injury: risk-stratified analysis from a prospective observational cohort of pediatric septic shock
Creators: name: Atreya, Mihir R.
name: Cvijanovich, Natalie Z.
name: Fitzgerald, Julie C.
name: Weiss, Scott L.
name: Bigham, Michael T.
name: Jain, Parag N.
name: Schwarz, Adam J.
name: Lutfi, Riad
name: Nowak, Jeffrey
name: Allen, Geoffrey L.
name: Thomas, Neal J.
name: Grunwell, Jocelyn R.
name: Baines, Torrey
name: Quasney, Michael
name: Haileselassie, Bereketeab
name: Alder, Matthew N.
name: Goldstein, Stuart L.
name: Stanski, Natalja L.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
classificationCode: 19999
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Science Policy

description: Additional file 3: Box and whisker plots of concentrations of endothelial dysfunction markers among patients with and without Day 3 sepsis-associated acute kidney injury, across low-, intermediate-, and high PERSEVERE-II mortality risk strata. The asterisk indicates that the interaction between D3 SA-AKI and PERSEVERE-II mortality risk strata influenced concentrations of Tie-2 and Angpt-2/Tie-2 ratio.
Non-Markovianity by undersampling in quantum optical simulators
Creators: name: Rossi, Matteo A. C.
name: Benedetti, Claudia
name: Cialdi, Simone
name: Tamascelli, Dario
name: Olivares, Stefano
name: Vacchini, Bassano
name: Paris, Matteo G. A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We unveil a novel source of non-Markovianity for the dynamics of quantum systems, which appears when the system does not explore the full set of dynamical trajectories in the interaction with its environment. We term this effect non-Markovianity by undersampling and demonstrate its appearance in the operation of an all-optical quantum simulator involving a polarization qubit interacting with a dephasing fluctuating environment.
description: Accepted version
Analysis of the spread of SARS-CoV-2 in a hospital isolation room using CFD and Lagrangian Coherent Structures
Creators: name: Amahjour, Narjisse
name: Garcia-Sanchez, Guillermo
name: Agaoglou, Makrina
name: Mancho, Ana Maria
Publisher: name: arXiv
Year: 2024
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37-xx

description: This research paper presents an analysis of the propagation of the SARS-CoV-2, or other similar pathogens, in a hospital isolation room using computational fluid dynamics (CFD) and Lagrangian Coherent Structures (LCS). The study investigates the airflow dispersion and droplets in the room under air conditioning vent and sanitizer conditions. The CFD simulation results show that both the air conditioner and sanitizer systems significantly influence the dispersion of the virus in the room. The use of LCS enables acquiring a deep understanding of the dispersion of suspended particles, providing insights into the mechanisms of virus transmission. The findings of this study could help in developing strategies for improving the design and operation of isolation rooms to minimize the likelihood of virus dissemination within hospitals.
description: 17 pages
Creating A Multi-track Classical Musical Performance Dataset for Multimodal Music Analysis: Challenges, Insights, and Applications
Creators: name: Li, Bochen
name: Liu, Xinzhao
name: Dinesh, Karthik
name: Duan, Zhiyao
name: Sharma, Gaurav
Publisher: name: arXiv
Year: 2016
Subjects: subject: Multimedia (cs.MM)
subject: Sound (cs.SD)
subject: FOS: Computer and information sciences

description: We introduce a dataset for facilitating audio-visual analysis of music performances. The dataset comprises 44 simple multi-instrument classical music pieces assembled from coordinated but separately recorded performances of individual tracks. For each piece, we provide the musical score in MIDI format, the audio recordings of the individual tracks, the audio and video recording of the assembled mixture, and ground-truth annotation files including frame-level and note-level transcriptions. We describe our methodology for the creation of the dataset, particularly highlighting our approaches for addressing the challenges involved in maintaining synchronization and expressiveness. We demonstrate the high quality of synchronization achieved with our proposed approach by comparing the dataset with existing widely-used music audio datasets. We anticipate that the dataset will be useful for the development and evaluation of existing music information retrieval (MIR) tasks, as well as for novel multi-modal tasks. We benchmark two existing MIR tasks (multi-pitch analysis and score-informed source separation) on the dataset and compare with other existing music audio datasets. Additionally, we consider two novel multi-modal MIR tasks (visually informed multi-pitch analysis and polyphonic vibrato analysis) enabled by the dataset and provide evaluation measures and baseline systems for future comparisons (from our recent work). Finally, we propose several emerging research directions that the dataset enables.
description: 14 pages, 10 figures
Nature of carrier injection in metal/2D semiconductor interface and its implications to the limits of contact resistance
Creators: name: Somvanshi, Divya
name: Kallatt, Sangeeth
name: Venkatesh, Chenniappan
name: Nair, Smitha
name: Gupta, Garima
name: Anthony, John Kiran
name: Karmakar, Debjani
name: Majumdar, Kausik
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Monolayers of transition metal dichalcogenides (TMDCs) exhibit excellent electronic and optical properties. However, the performance of these two-dimensional (2D) devices are often limited by the large resistance offered by the metal contact interface. Till date, the carrier injection mechanism from metal to 2D TMDC layers remains unclear, with widely varying reports of Schottky barrier height (SBH) and contact resistance (Rc), particularly in the monolayer limit. In this work, we use a combination of theory and experiments in Au and Ni contacted monolayer MoS2 device to conclude the following points: (i) the carriers are injected at the source contact through a cascade of two potential barriers - the barrier heights being determined by the degree of interaction between the metal and the TMDC layer; (ii) the conventional Richardson equation becomes invalid due to the multi-dimensional nature of the injection barriers, and using Bardeen-Tersoff theory, we derive the appropriate form of the Richardson equation that describes such composite barrier; (iii) we propose a novel transfer length method (TLM) based SBH extraction methodology, to reliably extract SBH by eliminating any confounding effect of temperature dependent channel resistance variation; (iv) we derive the Landauer limit of the contact resistance achievable in such devices. A comparison of the limits with the experimentally achieved contact resistance reveals plenty of room for technological improvements.
description: Accepted in Physical Review B
Effect algebras as presheaves on finite Boolean algebras
Creators: name: Jenča, Gejza
Publisher: name: arXiv
Year: 2017
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: For an effect algebra $A$, we examine the category of all morphisms from finite Boolean algebras into $A$. This category can be described as a category of elements of a presheaf $R(A)$ on the category of finite Boolean algebras. We prove that some properties (being an orthoalgebra, the Riesz decomposition property, being a Boolean algebra) of an effect algebra $A$ can be characterized by properties of the category of elements of the presheaf $R(A)$. We prove that the tensor product of of effect algebras arises as a left Kan extension of the free product of finite Boolean algebras along the inclusion functor. As a consequence, the tensor product of effect algebras can be expressed by means of the Day convolution of presheaves on finite Boolean algebras.
The KPZ fixed point
Creators: name: Matetski, Konstantin
name: Quastel, Jeremy
name: Remenik, Daniel
Publisher: name: arXiv
Year: 2017
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: An explicit Fredholm determinant formula is derived for the multipoint distribution of the height function of the totally asymmetric simple exclusion process (TASEP) with arbitrary right-finite initial condition. The method is by solving the biorthogonal ensemble/non-intersecting path representation found by [Sas05; BFPS07]. The resulting kernel involves transition probabilities of a random walk forced to hit a curve defined by the initial data. In the KPZ 1:2:3 scaling limit the formula leads in a transparent way to a Fredholm determinant formula, in terms of analogous kernels based on Brownian motion, for the transition probabilities of the scaling invariant Markov process at the centre of the KPZ universality class. The formula readily reproduces known special self-similar solutions such as the Airy$_1$ and Airy$_2$ processes. The process takes values in real valued functions which look locally like Brownian motion, and is Hölder $1/3-$ in time. Both the KPZ fixed point and TASEP are shown to be stochastic integrable systems in the sense that the time evolution of their transition probabilities can be linearized through a new Brownian scattering transform and its discrete analogue.
description: Final version. Minor edits and corrections, some additional detail. 51 pages
RKH spaces of Brownian type defined by Cesàro-Hardy operators
Creators: name: Galé, José E.
name: Miana, Pedro J.
name: Sánchez--Lajustici, Luis
Publisher: name: arXiv
Year: 2024
Subjects: subject: Functional Analysis (math.FA)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: Primary 46E22, 47G10, 30H10, Secondary 44A10, 60J65

description: We study reproducing kernel Hilbert spaces introduced as ranges of generalized Cesàro-Hardy operators, in one real variable and in one complex variable. Such spaces can be seen as formed by absolutely continuous functions on the positive half-line (or paths of infinite length) of fractional order, in the real case. A theorem of Paley-Wiener type is given which connects the real setting with the complex one. These spaces are related with fractional operations in the context of integrated Brownian processes. We give estimates of the norms of the corresponding reproducing kernels.
description: 32 pp
The relationship between statin administration timing and survival outcomes in patients with cancer receiving immune checkpoint blockade
Creators: name: Wang, Zihan
name: See, Xin Ya
name: Chiang, Cho-Hung
name: Chang, Yu-Cheng
name: Hsia, Yuan Ping
name: Chiang, Cho-Hsien
name: Peng, Cheng-Ming
name: Chiang, Cho-Han
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Statins have been demonstrated to improve outcomes in patients receiving immune checkpoint blockade (ICB). This study aimed to investigate whether the timing of statin administration influences the outcomes of patients receiving ICB. We conducted a retrospective cohort study utilizing electronic health records from two tertiary referral centers in Taiwan. We compared the overall survival (OS) and progression-free survival (PFS) of patients who received statins before and after ICB initiation. We included 734 patients who received ICB. Among them, 606 were non-statin users, 76 started statins after ICB initiation, and 52 started statins before ICB initiation. Post-ICB statin users demonstrated significantly prolonged OS (median 37.6 versus 10.3 versus 11.3 months, p = 0.009) and PFS (median 10.5 versus 6.3 versus 5.6 months, p = 0.024) compared to pre-ICB statin and non-statin users. Statin use after ICB initiation had a reduced risk of all-cause mortality (HR, 0.65 [95% CI: 0.45–0.94], p = 0.022) and progressive disease (HR, 0.71 [95% CI: 0.53–0.95], p = 0.021) by approximately 30–35%, compared to non-statin users. However, statin use prior to ICB initiation did not affect the risk of all-cause mortality or progressive disease. Similar results were observed after controlling for potential cofounders such as age, sex, cancer stage, and cancer type. These findings suggest that initiating statin therapy after the initiation of ICB, regardless of indication, is associated with improved patient prognosis.
Additional file 4 of Prognostic and predictive value of endothelial dysfunction biomarkers in sepsis-associated acute kidney injury: risk-stratified analysis from a prospective observational cohort of pediatric septic shock
Creators: name: Atreya, Mihir R.
name: Cvijanovich, Natalie Z.
name: Fitzgerald, Julie C.
name: Weiss, Scott L.
name: Bigham, Michael T.
name: Jain, Parag N.
name: Schwarz, Adam J.
name: Lutfi, Riad
name: Nowak, Jeffrey
name: Allen, Geoffrey L.
name: Thomas, Neal J.
name: Grunwell, Jocelyn R.
name: Baines, Torrey
name: Quasney, Michael
name: Haileselassie, Bereketeab
name: Alder, Matthew N.
name: Goldstein, Stuart L.
name: Stanski, Natalja L.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
classificationCode: 19999
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Science Policy

description: Additional file 4:Top panel shows the receiver operating characteristic curve for the PERSEVERENCE SA-AKI CART model to estimate risk of Day 3 sepsis-associated acute kidney injury among patients with high- or intermediate-PERSEVERE-II mortality risk strata in training and test sets. It shows relative variable importance of predictor variables included in the model.
Non-extensive Statistical Mechanics and Black Hole Entropy From Quantum Geometry
Creators: name: Majhi, Abhishek
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Using non-extensive statistical mechanics, the Bekenstein-Hawking area law is obtained from microstates of black holes in loop quantum gravity, for arbitrary real positive values of the Barbero-Immirzi parameter$(γ)$. The arbitrariness of $γ$ is encoded in the strength of the "bias" created in the horizon microstates through the coupling with the quantum geometric fields exterior to the horizon. An experimental determination of $γ$ will fix this coupling, leaving out the macroscopic area of the black hole to be the only free quantity of the theory.
description: 6 pages, published version
Exploring epitaxial structures for electrically pumped perovskite lasers: a study of CsPb(Br,I)$_3$ based on the \textit{ab initio} Bethe-Salpeter equation
Creators: name: Wierzbowska, Małgorzata
name: Meléndez, Juan J.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Halide perovskites are widely used as components of electronic and optoelectronic devices such as solar cells, light-emitting diodes (LEDs), optically pumped lasers, field-effect transistors, photodetectors, and $γ$-detectors. Despite this wide range of applications, the construction of an electrically pumped perovskite laser remains challenging. In this paper, we numerically justify that mixing two perovskite compounds with different halide elements can lead to optical properties suitable for electrical pumping. As a reference, the chosen model material was CsPbBr$_3$, whose performance as a part of lasers has been widely recognised, with some Br atoms substituted by I at specific sites. In particular, a strong enhancement of the low-energy absorption peaks has been obtained using the \textit{ab initio} Bethe-Salpeter equation. Based on these results, we propose specific architectures of ordered doping that could be realised by epitaxial growth. Efficient light emission from the bottom of the conduction band is expected.
Non-Fluent Synthetic Target-Language Data Improve Neural Machine Translation
Creators: name: Sánchez-Cartagena, Víctor M.
name: Esplà-Gomis, Miquel
name: Pérez-Ortiz, Juan Antonio
name: Sánchez-Martínez, Felipe
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: When the amount of parallel sentences available to train a neural machine translation is scarce, a common practice is to generate new synthetic training samples from them. A number of approaches have been proposed to produce synthetic parallel sentences that are similar to those in the parallel data available. These approaches work under the assumption that non-fluent target-side synthetic training samples can be harmful and may deteriorate translation performance. Even so, in this paper we demonstrate that synthetic training samples with non-fluent target sentences can improve translation performance if they are used in a multilingual machine translation framework as if they were sentences in another language. We conducted experiments on ten low-resource and four high-resource translation tasks and found out that this simple approach consistently improves translation performance as compared to state-of-the-art methods for generating synthetic training samples similar to those found in corpora. Furthermore, this improvement is independent of the size of the original training corpus, the resulting systems are much more robust against domain shift and produce less hallucinations.
description: arXiv admin note: text overlap with arXiv:2109.03645
Main Beam Modeling for Large Irregular Arrays: The SKA1-LOW telescope case
Creators: name: Bui-Van, Ha
name: Craeye, Christophe
name: Acedo, Eloy de Lera
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Large radio telescopes in the 21st century such as the Low-Frequency Array (LOFAR) or the Murchison Widefield Array (MWA) make use of phased aperture arrays of antennas to achieve superb survey speeds. The Square Kilometer Array low frequency instrument (SKA1-LOW) will consist of a collection of non-regular phased array systems. The prediction of the main beam of these arrays using a few coefficients is crucial for the calibration of the telescope. An effective approach to model the main beam and first few sidelobes for large non-regular arrays is presented. The approach exploits Zernike polynomials to represent the array pattern. Starting from the current defined on an equivalence plane located just above the array, the pattern is expressed as a sum of Fourier transforms of Zernike functions of different orders. The coefficients for Zernike polynomials are derived by two different means: least-squares and analytical approaches. The analysis shows that both approaches provide a similar performance for representing the main beam and first few sidelobes. Moreover, numerical results for different array configurations are provided, which demonstrate the performance of the proposed method, also for arrays with shapes far from circular.
description: This is a pre-print of an article published in Experimental Astronomy. The final authenticated version is available online at: https://doi.org/10.1007/s10686-017-9565-y
Additional file 6 of Prognostic and predictive value of endothelial dysfunction biomarkers in sepsis-associated acute kidney injury: risk-stratified analysis from a prospective observational cohort of pediatric septic shock
Creators: name: Atreya, Mihir R.
name: Cvijanovich, Natalie Z.
name: Fitzgerald, Julie C.
name: Weiss, Scott L.
name: Bigham, Michael T.
name: Jain, Parag N.
name: Schwarz, Adam J.
name: Lutfi, Riad
name: Nowak, Jeffrey
name: Allen, Geoffrey L.
name: Thomas, Neal J.
name: Grunwell, Jocelyn R.
name: Baines, Torrey
name: Quasney, Michael
name: Haileselassie, Bereketeab
name: Alder, Matthew N.
name: Goldstein, Stuart L.
name: Stanski, Natalja L.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
classificationCode: 19999
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Science Policy

description: Additional file 6. Online Supplement: R code for PERSEVERENCE CART Tree to predict D3 Sepsis Associated-Acute Kidney Injury among children with septic shock.
PFKP is upregulated in 5-fluorouracil-resistant patients and suppresses the antitumor activity of 5-fluorouracil in colorectal cancer in vitro and in vivo
Creators: name: Deng, Lili
name: Zhao, Yan
name: Liu, Wen
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: Virology

description: As a long-established chemotherapy drug, 5-fluorouracil (5-FU) is widely used to clinically manage colorectal cancer (CRC). However, a substantial portion of patients develop 5-FU resistance at some stage, which poses a great challenge. Therefore, revealing the mechanisms that could guide the development of effective strategies to overcome 5-FU resistance is required. Here, we report that the expression of PFKP was higher in HCT116/5-FU CRC. Furthermore, genetic suppression of PFKP suppresses glycolysis, NF-κB activation, and expression of GLUT1 and HK2 in HCT116/5-FU cells. PFKP overexpression promotes glycolysis and expression of GLUT1 and HK2 via the NF-κB signaling pathway in HCT116 cells. Our functional assays demonstrated that PFKP silencing could sensitize HCT116/5-FU cells to 5-FU with an elevated population of apoptotic cells. In contrast, forced expression of PFKP conferred 5-FU resistance in HCT116 cells. Furthermore, PFKP silencing significantly inhibited CRC xenograft tumor growth. Notably, the combination of PFKP silencing and 5-FU inhibited tumor growth. Therefore, our results demonstrated that PFKP enhances 5-FU resistance by promoting glycolysis, indicating that PFKP could be a novel candidate for targeted therapy for 5-FU-resistant CRC.
Flavour Structure of GUTs and Uncertainties in Proton Lifetime Estimates
Creators: name: Kolešová, Helena
name: Malinský, Michal
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the flavour aspects of proton lifetime estimates in simple Grand unified models paying particular attention to their inherent fragility due to the notorious lack of control of some of the key parameters governing the relevant hard-process amplitudes. Among these, the theoretical uncertainties in the flavour structure of the baryon and lepton number violating charged currents due to the potential higher-order effects afflicting the matching of the underlying Yukawa couplings to the low-energy data often play a prominent role. Focusing on the minimal variants of the most popular unified models we study the potential instabilities of the corresponding proton lifetime estimates based on the renormalizable-level Yukawa fits with respect to the Planck-scale induced flavour effects. In particular, we perform a detailed numerical analysis of all minimal $SO(10)$ Yukawa sector fits available in the literature and show that the proton lifetime estimates based on these inputs exhibit a high degree of robustness with respect to moderate-size perturbations, well within the expected "improvement window" of the upcoming proton decay searches.
description: 14 pages, 5 figures, major update focusing on comprehensibility, extended numerical analysis
Hilbertian Hardy-Sobolev spaces on a half-plane
Creators: name: Galé, José E.
name: Matache, Valentin
name: Miana, Pedro J.
name: Sánchez--Lajusticia, Luis
Publisher: name: arXiv
Year: 2024
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: Primary 46E22, 47B33, Secondary 44A10, 30H10

description: In this paper we deal with a scale of reproducing kernel Hilbert spaces $H^{(n)}_2$, $n\ge 0$, which are linear subspaces of the classical Hilbertian Hardy space on the right-hand half-plane $\mathbb{C}^+$. They are obtained as ranges of the Laplace transform in extended versions of the Paley-Wiener theorem which involve absolutely continuous functions of higher degree. An explicit integral formula is given for the reproducing kernel $K_{z,n}$ of $H^{(n)}_2$, from which we can find the estimate $\Vert K_{z,n}\Vert\sim\vert z\vert^{-1/2}$ for $z\in\mathbb{C}^+$. Then composition operators $C_φ:H_2^{(n)} \to H_2^{(n)}$, $C_φf=f\circ φ$, on these spaces are discussed, giving some necessary and some sufficient conditions for analytic maps $φ: \mathbb{C}^+\to \mathbb{C}^+$ to induce bounded composition operators.
description: 27 pp