cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A New Support Film for Cryo Electron Microscopy Protein Structure Analysis Based on Covalently Functionalized Graphene
Creators: name: Nickl, Philip
name: Hilal, Tarek
name: Olal, Daniel
name: Donskyi, Ievgen Sergeevitch
name: Radnik, Jörg
name: Ludwig, Kai
name: Haag, Rainer
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: cryogenic electron microscopy
subject: cryogenic electron tomography
subject: graphene
subject: single particle analysis
subject: support films
subject: x-ray photoelectron spectroscopy
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: Protein adsorption at the air–water interface is a serious problem in cryogenic electron microscopy (cryoEM) as it restricts particle orientations in the vitrified ice-film and promotes protein denaturation. To address this issue, the preparation of a graphene-based modified support film for coverage of conventional holey carbon transmission electron microscopy (TEM) grids is presented. The chemical modification of graphene sheets enables the universal covalent anchoring of unmodified proteins via inherent surface-exposed lysine or cysteine residues in a one-step reaction. Langmuir–Blodgett (LB) trough approach is applied for deposition of functionalized graphene sheets onto commercially available holey carbon TEM grids. The application of the modified TEM grids in single particle analysis (SPA) shows high protein binding to the surface of the graphene-based support film. Suitability for high resolution structure determination is confirmed by SPA of apoferritin. Prevention of protein denaturation at the air–water interface and improvement of particle orientations is shown using human 20S proteasome, demonstrating the potential of the support film for structural biology.
Boundary quotient C*-algebras of semigroups
Creators: name: Kakariadis, Evgenios T. A.
name: Katsoulis, Elias G.
name: Laca, Marcelo
name: Li, Xin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Operator Algebras (math.OA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46L08, 46L05, 47L55, 20M32

description: We study two classes of operator algebras associated with a unital subsemigroup $P$ of a discrete group $G$: one related to universal structures, and one related to co-universal structures. First we provide connections between universal C*-algebras that arise variously from isometric representations of $P$ that reflect the space $\mathcal{J}$ of constructible right ideals, from associated Fell bundles, and from induced partial actions. This includes connections of appropriate quotients with the strong covariance relations in the sense of Sehnem. We then pass to the reduced representation $\mathrm{C}^*_λ(P)$ and we consider the boundary quotient $\partial \mathrm{C}^*_λ(P)$ related to the minimal boundary space. We show that $\partial \mathrm{C}^*_λ(P)$ is co-universal in two different classes: (a) with respect to the equivariant constructible isometric representations of $P$; and (b) with respect to the equivariant C*-covers of the reduced nonselfadjoint semigroup algebra $\mathcal{A}(P)$. If $P$ is an Ore semigroup, or if $G$ acts topologically freely on the minimal boundary space, then $\partial \mathrm{C}^*_λ(P)$ coincides with the usual C*-envelope $\mathrm{C}^*_{\text{env}}(\mathcal{A}(P))$ in the sense of Arveson. This covers total orders, finite type and right-angled Artin monoids, the Thompson monoid, multiplicative semigroups of nonzero algebraic integers, and the $ax+b$-semigroups over integral domains that are not a field. In particular, we show that $P$ is an Ore semigroup if and only if there exists a canonical $*$-isomorphism from $\partial \mathrm{C}^*_λ(P)$, or from $\mathrm{C}^*_{\text{env}}(\mathcal{A}(P))$, onto $\mathrm{C}^*_λ(G)$. If any of the above holds, then $\mathcal{A}(P)$ is shown to be hyperrigid.
description: 22 pages. Theorem 4.5 to $ax+b$-semigroups of rings has a more general application than originally stated, leading to the updated Remark 4.8(vi)
Data_availability_PRE-POST.xlsx
Creators: name: Cecília-Gallego, Pau
name: Beltran-Garrido, Jose
name: Álvarez-Herms, Jesús
name: Padullés-Riu, Josep Maria
name: Odriozola, Adrian
Publisher: name: figshare
Year: 2023
Subjects: Sports science and exercise not elsewhere classified

description: Data availability to be consulted.
OCTOPUS: Overcoming Performance andPrivatization Bottlenecks in Distributed Learning
Creators: name: Wang, Shuo
name: Nepal, Surya
name: Moore, Kristen
name: Grobler, Marthie
name: Rudolph, Carsten
name: Abuadbba, Alsharif
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: The diversity and quantity of data warehouses, gathering data from distributed devices such as mobile devices, can enhance the success and robustness of machine learning algorithms. Federated learning enables distributed participants to collaboratively learn a commonly-shared model while holding data locally. However, it is also faced with expensive communication and limitations due to the heterogeneity of distributed data sources and lack of access to global data. In this paper, we investigate a practical distributed learning scenario where multiple downstream tasks (e.g., classifiers) could be efficiently learned from dynamically-updated and non-iid distributed data sources while providing local data privatization. We introduce a new distributed/collaborative learning scheme to address communication overhead via latent compression, leveraging global data while providing privatization of local data without additional cost due to encryption or perturbation. This scheme divides learning into (1) informative feature encoding, and transmitting the latent representation of local data to address communication overhead; (2) downstream tasks centralized at the server using the encoded codes gathered from each node to address computing overhead. Besides, a disentanglement strategy is applied to address the privatization of sensitive components of local data. Extensive experiments are conducted on image and speech datasets. The results demonstrate that downstream tasks on the compact latent representations with the privatization of local data can achieve comparable accuracy to centralized learning.
Additional file 12 of Putative positive role of inflammatory genes in fat deposition supported by altered gene expression in purified human adipocytes and preadipocytes from lean and obese adipose tissues
Creators: name: Sang-Hyeop Lee
name: Nak-Hyeon Choi
name: In-Uk Koh
name: Bong-Jo Kim
name: Lee, Song
name: Song-Cheol Kim
name: Choi, Sun Shim
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Computational Biology

description: Additional file 12: Figure S6. Schematic of the purification of AC and preAC cells from AT. Refer to the Materials and methods section for the detailed procedures depicted in this schematic.
Visual Foresight Trees for Object Retrieval from Clutter with Nonprehensile Rearrangement
Creators: name: Huang, Baichuan
name: Han, Shuai D.
name: Yu, Jingjin
name: Boularias, Abdeslam
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: This paper considers the problem of retrieving an object from many tightly packed objects using a combination of robotic pushing and grasping actions. Object retrieval in dense clutter is an important skill for robots to operate in households and everyday environments effectively. The proposed solution, Visual Foresight Trees (VFT), intelligently rearranges the clutter surrounding a target object so that it can be grasped easily. Rearrangement with nested nonprehensile actions is challenging as it requires predicting complex object interactions in a combinatorially large configuration space of multiple objects. We first show that a deep neural network can be trained to accurately predict the poses of the packed objects when the robot pushes one of them. The predictive network provides visual foresight and is used in a tree search as a state transition function in the space of scene images. The tree search returns a sequence of consecutive push actions yielding the best arrangement of the clutter for grasping the target object. Experiments in simulation and using a real robot and objects show that the proposed approach outperforms model-free techniques as well as model-based myopic methods both in terms of success rates and the number of executed actions, on several challenging tasks. A video introducing VFT, with robot experiments, is accessible at https://youtu.be/7cL-hmgvyec. The full source code is available at https://github.com/arc-l/vft.
description: Accepted by RA-L
The Sloan Digital Sky Survey Reverberation Mapping Project: UV-Optical Accretion Disk Measurements with Hubble Space Telescope
Creators: name: Homayouni, Y.
name: Sturm, Megan R.
name: Trump, Jonathan R.
name: Horne, Keith
name: Grier, C. J.
name: Shen, Yue
name: Brandt, W. N.
name: Alvarez, Gloria Fonseca
name: Hall, P. B.
name: Ho, Luis C.
name: Li, Jennifer I-Hsiu
name: Sun, Mouyuan
name: Schneider, D. P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present accretion-disk structure measurements from UV-optical reverberation mapping observations of a sample of eight quasars at 0.24
description: 24 pages, 13 figures, figure 5 (7 images) is available as a figure set. Accepted for publication in ApJ
Exact solution of Kerr black hole perturbations via CFT$_2$ and instanton counting. Greybody factor, Quasinormal modes and Love numbers
Creators: name: Bonelli, Giulio
name: Iossa, Cristoforo
name: Lichtig, Daniel Panea
name: Tanzini, Alessandro
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We give explicit expressions for the finite frequency greybody factor, quasinormal modes and Love numbers of Kerr black holes by computing the exact connection coefficients of the radial and angular parts of the Teukolsky equation. This is obtained by solving the connection problem of the confluent Heun equation in terms of the explicit expression of irregular Virasoro conformal blocks as sums over partitions via the AGT correspondence. In the relevant approximation limits our results are in agreement with existing literature. The method we use can be extended to solve the linearized Einstein equation in other interesting gravitational backgrounds.
description: 37 pages, 7 figures, comments welcome
Health Inequity Simulation
Creators: name: Rehman, Tehreem
name: Oyinkansola Okubanjo
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Medicine and Health Sciences
subject: Social and Behavioral Sciences

description: Competence in system-based practice in multidisciplinary medical education must include training on functioning as an interprofessional team member to address SDOH. This pilot targets the existing gap on teaching residents how to leverage interprofessional expertise and larger context of SDOH in patient care.
The fate of twin stars on the unstable branch: implications for the formation of twin stars
Creators: name: Espino, Pedro
name: Paschalidis, Vasileios
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Hybrid hadron-quark equations of state that give rise a third family of stable compact stars have been shown to be compatible with the LIGO-Virgo event GW170817. Stable configurations in the third family are called hybrid hadron-quark stars. The equilibrium stable hybrid hadron-quark star branch is separated by the stable neutron star branch with a branch of unstable hybrid hadron-quark stars. The end-state of these unstable configurations has not been studied, yet, and it could have implications for the formation and existence of twin stars -- hybrid stars with the same mass as neutron stars but different radii. We modify existing hybrid hadron-quark equations of state with a first-order phase transition in order to guarantee a well-posed initial value problem of the equations of general relativistic hydrodynamics, and study the dynamics of non-rotating or rotating unstable twin stars via 3-dimensional simulations in full general relativity. We find that unstable twin stars naturally migrate toward the hadronic branch. Before settling into the hadronic regime, these stars undergo (quasi)radial oscillations on a dynamical timescale while the core bounces between the two phases. Our study suggests that it may be difficult to form stable twin stars if the phase transition is sustained over a large jump in energy density, and hence it may be more likely that astrophysical hybrid hadron-quark stars have masses above the twin star regime. We also study the minimum-mass instability for hybrid stars, and find that these configurations do not explode, unlike the minimum-mass instability for neutron stars. Additionally, our results suggest that oscillations between the two Quantum Chromodynamic phases could provide gravitational wave signals associated with such phase transitions in core-collapse supernovae and white dwarf-neutron star mergers.
Time- and Site-Resolved Kinetic NMR: Real-Time Monitoring of Off-Equilibrium Chemical Dynamics by 2D Spectrotemporal Correlations
Creators: name: Jaroszewicz, Michael J.
name: Liu, Mengxiao
name: Kim, Jihyun
name: Zhang, Guannan
name: Kim, Yaewon
name: Hilty, Christian
name: Frydman, Lucio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Nuclear magnetic resonance (NMR) spectroscopy provides detailed information pertaining to dynamic processes through line-shape changes, which have been traditionally limited to equilibrium conditions. However, there is a wealth of information to be gained by studying chemical reactions under off-equilibrium conditions -- e.g., in states that arise upon mixing reactants that subsequently undergo chemical changes -- and in monitoring the formation of reaction products in real time. Herein, we propose and demonstrate a time-resolved kinetic NMR experiment that combines rapid mixing techniques, continuous flow, and single-scan spectroscopic imaging methods, leading in unison to a new 2D spectro-temporal NMR correlation which provides high-quality kinetic information of off-equilibrium dynamics. These kinetic 2D NMR spectra possess a spectral dimension conveying with high resolution the individual chemical sites, correlated with a time-independent, steady-state spatial axis that delivers unique information concerning temporal changes along the chemical reaction coordinate. A comprehensive description of the kinetic and spectroscopic features associated to these spectro-temporal NMR analyses is presented, factoring in the rapid-mixing, the flow and the spectroscopic NMR imaging. An experimental demonstration of this method's novel aspects was carried out using an enzymatically catalyzed reaction, leading to site- and time-resolved kinetic NMR data that are in excellent agreement with control experiments and literature values.
Additional file 1 of Putative positive role of inflammatory genes in fat deposition supported by altered gene expression in purified human adipocytes and preadipocytes from lean and obese adipose tissues
Creators: name: Sang-Hyeop Lee
name: Nak-Hyeon Choi
name: In-Uk Koh
name: Bong-Jo Kim
name: Lee, Song
name: Song-Cheol Kim
name: Choi, Sun Shim
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Computational Biology

description: Additional file 1: Figure S1. Schematic of the identification of the four different classes of DEGs‘Class I: AC-DEGs’ are identified from O-AC expression divided by L-AC expression, ‘Class II: preAC-DEGs’ are from O-preAC expression divided by L-preAC expression, Class III: ‘Lean_Ag-DEGs’ are from L-AC expression divided by L-preAC expression, and Class IV: ‘Obese_Ag-DEGs’ are from O-AC expression divided by O-preAC expression. The statistical criteria for detecting each of the DEGs are explained in ditional file 2: Table S1. ‘e[]’ indicates the expression levels of genes within the bracket.
Resistência Mecânica do Solo à Penetração e Crescimento Radicular em Cultivo de Palma de Óleo no Pará
Creators: name: Cardoso Neto, Haroldo Humberto Lobo
name: Souza, Peola Reis de
name: Souza, Inae Vilhena
name: Lima, Herdjania Veras de
Publisher: name: Zenodo
Year: 2022
Subjects: dendê
penetrômetro de campo
limiarização

description: O óleo de palma é o óleo vegetal mais consumido no mundo e tornou-se uma fonte sustentável de biocombustíveis. No estado do Pará, os cultivos de palma de óleo estão estabelecidos, principalmente, em solos da classe dos Latossolos e Argissolos. O manejo da palma requer operações mecanizadas para o estabelecimento do plantio, tratos culturais e colheita periódica, que contribuem para a compactação do solo. Caracterizada pela degradação da estrutura do solo, a compactação é um processo antrópico prejudicial para o desenvolvimento das culturas. Nesse contexto, a resistência mecânica do solo à penetração (RP) é um importante indicador físico de qualidade do solo utilizado para monitorar riscos a compactação. Assim, nosso objetivo foi avaliar os efeitos da RP no crescimento radicular da palma de óleo no estado do Pará. O estudo foi desenvolvido em três áreas com palma de óleo de textura areia franca, onde foram coletadas três amostras indeformadas para a determinação do volume radicular e a obtenção da RP foi a partir de leituras in situ com o emprego de um penetrômetro de campo, com uma média de três leituras por ponto. As profundidades de coleta foram 0-0,20, 0,20-0,40 e 0,40-0,60 m. As raízes também foram analisadas por meio da técnica de limiarização (thresholding) quanto ao diâmetro radicular por meio de uma malha de 0,9 x 0,2 m, subdividida em quadrados de 0,05 m, sobreposta a parede do perfil do solo. Nas áreas estudadas, valores de RP acima de 2 MPa foram observados nas profundidades de 0,20-0,40 e 0,40-0,60 m, possivelmente em virtude de valores de densidade médias do solo acima de 1,50 g cm-3 . O volume de raízes foi maior na camada 0-0,20 m (0,001889 g cm-3) e diminuiu gradualmente com o aumento da profundidade. A limiarização indicou que 86,6% sistema radicular é composto por raízes secundárias, com diâmetro entre 1-4,9 mm. As raízes primárias, com diâmetro radicular entre 5 e 10 mm, foram mais expressivas na profundidade de 0-0,20 m, possivelmente favorecidas por valores de RP inferiores a 1,5 MPa. Não foram encontradas raízes primárias na profundidade 0,40-0,60 m, aqui houve maior expressão das raízes terciárias, com diâmetro entre 0,5-0,9 mm. A produção de cachos de frutos frescos é favorecida pelo adequado desenvolvimento radicular e, quando as raízes crescem em profundidade, as plantas podem suportar extremas condições, como o déficit hídrico. O crescimento radicular é comprometido em solos que apresentam RP acima de 2,5 MPa, o que não foi observado nesta pesquisa, assim sugerimos que pesquisas futuras relacionem indicadores físicos, químicos e microbiológicos do solo com o crescimento radicular a fim de identificar outras propriedades do solo que possam interferir no crescimento das raízes da palma de óleo.
The refined quantum extremal surface prescription from the asymptotic equipartition property
Creators: name: Wang, Jinzhao
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Information-theoretic ideas have provided numerous insights in the progress of fundamental physics, especially in our pursuit of quantum gravity. In particular, the holographic entanglement entropy is a very useful tool in studying AdS/CFT, and its efficacy is manifested in the recent black hole page curve calculation. On the other hand, the one-shot information-theoretic entropies, such as the smooth min/max-entropies, are less discussed in AdS/CFT. They are however more fundamental entropy measures from the quantum information perspective and should also play pivotal roles in holography. We combine the technical methods from both quantum information and quantum gravity to put this idea on firm grounds. In particular, we study the quantum extremal surface (QES) prescription that was recently revised to highlight the significance of one-shot entropies in characterizing the QES phase transition. Motivated by the asymptotic equipartition property (AEP), we derive the refined quantum extremal surface prescription for fixed-area states via a novel AEP replica trick, demonstrating the synergy between quantum information and quantum gravity. We further prove that, when restricted to pure bulk marginal states, such corrections do not occur for the higher Rényi entropies of a boundary subregion in fixed-area states, meaning they always have sharp QES transitions. Our path integral derivation suggests that the refinement applies beyond AdS/CFT, and we confirm it in a black hole toy model by showing that the Page curve, for a black hole in a superposition of two radiation stages, receives a large correction that is consistent with the refined QES prescription.
description: 53+9 pages, many figures. v2:Section 6 added to demonstrate a refined Page curve. v3: Section 5 added to address higher Renyi entropies with a theorem; the method and its presumptions are clarified in section 3. v4: The theorem in Section 5 is replaced by a weaker version. v5: published version with the presentation revised and the proof of theorem 1 simplified
Global Assessment of Oil and Gas Methane Ultra-Emitters
Creators: name: Lauvaux, Thomas
name: Giron, Clément
name: Mazzolini, Matthieu
name: d'Aspremont, Alexandre
name: Duren, Riley
name: Cusworth, Dan
name: Shindell, Drew
name: Ciais, Philippe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Methane emissions from oil and gas (O&G) production and transmission represent a significant contribution to climate change. These emissions comprise sporadic releases of large amounts of methane during maintenance operations or equipment failures not accounted for in current inventory estimates. We collected and analyzed hundreds of very large releases from atmospheric methane images sampled by the TROPOspheric Monitoring Instrument (TROPOMI) over 2019 and 2020 to quantify emissions from O&G ultra-emitters. Ultra-emitters are primarily detected over the largest O&G basins of the world, following a power-law relationship with noticeable variations across countries but similar regression slopes. With a total contribution equivalent to 8-12% of the global O&G production methane emissions, mitigation of ultra-emitters is largely achievable at low costs and would lead to robust net benefits in billions of US dollars for the six major producing countries when incorporating recent estimates of societal costs of methane.
On the nonclassicality in quantum JT gravity
Creators: name: Ageev, Dmitry S.
name: Aref'eva, Irina Ya.
name: Lysukhina, Anastasia V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this note, we consider the question of classicality for the theory which is known to be the effective description of two-dimensional black holes - the Morse quantum mechanics. We calculate the Wigner function and the Fisher information characterizing classicality/quantumness of single-particle systems and briefly discuss further directions to study.
description: 15 pages, 4 figures
Additional file 4 of Putative positive role of inflammatory genes in fat deposition supported by altered gene expression in purified human adipocytes and preadipocytes from lean and obese adipose tissues
Creators: name: Sang-Hyeop Lee
name: Nak-Hyeon Choi
name: In-Uk Koh
name: Bong-Jo Kim
name: Lee, Song
name: Song-Cheol Kim
name: Choi, Sun Shim
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Computational Biology

description: Additional file 4: Table S3. Statistical thresholds used for testing to select three subcategories of AC-DEGs.
Quantum Langevin dynamics of a charged particle in a magnetic field : Response function, position-velocity and velocity autocorrelation functions
Creators: name: Bhattacharjee, Suraka
name: Satpathi, Urbashi
name: Sinha, Supurna
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We use the Quantum Langevin equation as a starting point to study the response function, the position-velocity correlation function and the velocity autocorrelation function of a charged Quantum Brownian particle in the presence of a magnetic field and linearly coupled to a heat bath via position coordinate. We study two bath models -- the Ohmic bath model and the Drude bath model -- and make a detailed comparison in various time-temperature regimes. For both bath models there is a competition between the cyclotron frequency and the viscous damping rate giving rise to a transition from an oscillatory to a monotonic behaviour as the damping rate is increased. In the zero point fluctuation dominated low temperature regime, non-trivial noise correlations lead to some interesting features in this transition. We study the role of the memory time scale which comes into play in the Drude model and study the effect of this additional time scale. We discuss the experimental implications of our analysis in the context of experiments in cold ions.
description: 11 pages, 15 figures
Merodon cabanerensis Marcos-Garcia, Vujic & Mengual 2007
Creators: name: Likov, Laura
name: Vujić, Ante
name: Radenković, Snežana
name: Zorić, Ljiljana Šašić
name: Djan, Mihajla
name: Jordaens, Kurt
name: Mudri-Stojnić, Sonja
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Merodon
Merodon cabanerensis

description: Merodon cabanerensis Marcos-García, Vujić & Mengual, 2007
Examined material
MOROCCO • ♂; Azilal, Ait Mhamed; 31°53ʹ22.848ʺ N 6°29ʹ38.868ʺ W; 1700 m a.s.l.; 26 Mar. 2013; J. Dils leg.; FSUNS 10395; coll. VWG.
description: Published as part of Likov, Laura, Vujić, Ante, Radenković, Snežana, Zorić, Ljiljana Šašić, Djan, Mihajla, Jordaens, Kurt & Mudri-Stojnić, Sonja, 2025, Two new hoverfly species of the Merodon desuturinus lineage (Diptera: Syrphidae: Merodontini), pp. 26-60 in European Journal of Taxonomy 987 on page 37, DOI: 10.5852/ejt.2025.987.2857, http://zenodo.org/record/15212240
Measuring Spin from Relative Photon Ring Sizes
Creators: name: Broderick, Avery E.
name: Tiede, Paul
name: Pesce, Dominic W.
name: Gold, Roman
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The direct detection of a bright, ring-like structure in horizon-resolving images of M87* by the Event Horizon Telescope is a striking validation of general relativity. The angular size and shape of the ring is a degenerate measure of the location of the emission region, mass, and spin of the black hole. However, we show that the observation of multiple rings, corresponding to the low-order photon rings, can break this degeneracy and produce mass and spin measurements independent of the shape of the rings. We describe two potential experiments that would measure the spin. In the first, observations of the direct emission and $n=1$ photon ring are made at multiple epochs with different emission locations. This method is conceptually similar to spacetime constraints that arise from variable structures (or hot spots) in that it breaks the near-perfect degeneracy between emission location, mass, and spin for polar observers using temporal variability. In the second, observations of the direct emission, $n=1$ and $n=2$ photon rings are made during a single epoch. For both schemes, additional observations comprise a test of general relativity. Thus, comparisons of Event Horizon Telescope observations in 2017 and 2018 may be capable of producing the first horizon-scale spin estimates of M87* inferred from strong lensing alone. Additional observation campaigns from future high-frequency, Earth-sized and space-based radio interferometers can produce high-precision tests of general relativity.
description: Submitted to ApJ, 16 pages, 14 figures
Additional file 5 of Putative positive role of inflammatory genes in fat deposition supported by altered gene expression in purified human adipocytes and preadipocytes from lean and obese adipose tissues
Creators: name: Sang-Hyeop Lee
name: Nak-Hyeon Choi
name: In-Uk Koh
name: Bong-Jo Kim
name: Lee, Song
name: Song-Cheol Kim
name: Choi, Sun Shim
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Computational Biology

description: Additional file 5: Figure S2. GSEA analysis of LO-DEGs. Four selected gene sets from the GSEA analysis are presented here. (A) and (B) are the gene sets for inflammatory response and angiogenesis, respectively, showing significant enrichment in Le, and (C) and (D) are the gene sets for cellular respiration and cellular metabolism, respectively, showing significant enrichment in Oe. The left panels represent the graph of the enrichment score (ES) generated from the GSEA analysis, and the right panels are the heatmaps constructed by the gene sets with significant ES scores. The cyan and red bars on top of the heatmaps represent the ‘Le-AC’ and ‘Oe-AC’ samples, respectively.
The emergence of macroscopic currents in photoconductive sampling of optical fields
Creators: name: Schötz, Johannes
name: Maliakkal, Ancyline
name: Blöchl, Johannes
name: Zimin, Dmitry
name: Wang, Zilong
name: Rosenberger, Philipp
name: Alharbi, Meshaal
name: Azzeer, Abdallah M.
name: Weidman, Matthew
name: Yakovlev, Vladislav S.
name: Bergues, Boris
name: Kling, Matthias F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Photoconductive field sampling is a key methodology for advancing our understanding of light-matter interaction and ultrafast optoelectronic applications. For visible light the bandwidth of photoconductive sampling of fields and field-induced dynamics can be extended to the petahertz domain. Despite the growing importance of ultrafast photoconductive measurements, a rigorous model for connecting the microscopic electron dynamics to the macroscopic external signal is lacking. This has caused conflicting interpretations about the origin of macroscopic currents. Here, we present systematic experimental studies on the macroscopic signal formation of ultrafast currents in gases. We developed a theoretical model based on the Ramo-Shockley-theorem that overcomes the previously introduced artificial separation into dipole and current contributions. Extensive numerical particle-in-cell (PIC)-type simulations based on this model permit a quantitative comparison with experimental results and help to identify the roles of electron scattering and Coulomb interactions. The results imply that most of the heuristic models utilized so far will need to be amended. Our approach can aid in the design of more sensitive and more efficient photoconductive devices. We demonstrate for the case of gases that over an order of magnitude increase in signal is achievable, paving the way towards petahertz field measurements with the highest sensitivity.
description: 12 pages, 7 figures
Kaehler Ricci solitons induced by infinite dimensional complex space forms
Creators: name: Loi, Andrea
name: Zuddas, Fabio
name: Salis, Filippo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 53C55, 32Q15, 32T15 \keywords{\K\ \ metric, \K -Ricci solitons, Einstein metrics, Calabi's diastasis function, complex space forms}

description: We exhibit families of non trivial (i.e. not Kaehler-Einstein) radial Kaehler-Ricci solitons (KRS), both complete and not complete, which can be Kaehler immersed into infinite dimensional complex space forms. This result shows that the triviality of a KRS induced by a finite dimensional complex space form proved in [12] does not hold when the ambient space is allowed to be infinite dimensional. Moreover, we show that the radial potential of a radial KRS induced by a non-elliptic complex space form is necessarily defined at the origin.
description: 22 pages
Additional file 2 of Putative positive role of inflammatory genes in fat deposition supported by altered gene expression in purified human adipocytes and preadipocytes from lean and obese adipose tissues
Creators: name: Sang-Hyeop Lee
name: Nak-Hyeon Choi
name: In-Uk Koh
name: Bong-Jo Kim
name: Lee, Song
name: Song-Cheol Kim
name: Choi, Sun Shim
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Computational Biology

description: Additional file 2: Table S1. Statistical thresholds tested for selecting DEGs.
Logic Compatible High-Performance Ferroelectric Transistor Memory
Creators: name: Dutta, Sourav
name: Ye, Huacheng
name: Khanna, Abhishek
name: Luo, Yuan-Chun
name: Pentecost, Lillian
name: Khandker, Akif A.
name: Chakraborty, Wriddhi
name: Wei, Gu-Yeon
name: Brooks, David
name: Niemier, Michael
name: Hu, Xiaobo Sharon
name: Yu, Shimeng
name: Ni, Kai
name: Datta, Suman
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Silicon ferroelectric field-effect transistors (FeFETs) with low-k interfacial layer (IL) between ferroelectric gate stack and silicon channel suffers from high write voltage, limited write endurance and large read-after-write latency due to early IL breakdown and charge trapping and detrapping at the interface. We demonstrate low voltage, high speed memory operation with high write endurance using an IL-free back-end-of-line (BEOL) compatible FeFET. We fabricate IL-free FeFETs with 28nm channel length and 126nm width under a thermal budget <400C by integrating 5nm thick Hf0.5Zr0.5O2 gate stack with amorphous Indium Tungsten Oxide (IWO) semiconductor channel. We report 1.2V memory window and read current window of 10^5 for program and erase, write latency of 20ns with +/-2V write pulses, read-after-write latency <200ns, write endurance cycles exceeding 5x10^10 and 2-bit/cell programming capability. Array-level analysis establishes IL-free BEOL FeFET as a promising candidate for logic-compatible high-performance on-chip buffer memory and multi-bit weight cell for compute-in-memory accelerators.
Ricostruzione numerica ad alta risoluzione di alcune trombe d'aria sulla costa toscana con il modello Meso-NH
Creators: name: Capecchi, Valerio
Publisher: name: Zenodo
Year: 2022

description: As reported by the European severe weather database, waterspouts are a frequent phenomenon along the Tyrrhenian coasts. They are more frequently observed during autumn than other seasons and, although less intense than tornadoes, can cause relevant damages when they make landfall. Based on information from weather station data, newspaper articles, eye-witness reports, photos or videos of the damages, the area of the Rosignano Solvay municipality (central coast of Tuscany, Italy) has experienced four of such high-impact events in the last 10 years. We present the numerical reconstructions of the atmospheric conditions that led to the waterspout events. The Meso-
 NH model, fed by ECMWF global analyses, is used to produce short-term and high-resolution (grid spacing up to 100 m) predictions. By looking at the atmospheric parameters correlated to the waterspout formation, we speculate about the ability of numerical forecasts in reconstructing the favorable conditions for waterspouts formation and development. We also discuss any usefulness of such short-term forecasts for issuing tornado-probability alerts. Furthermore, to investigate any possible influence of warmer sea surface temperatures (SSTs) on waterspout formation, we performed a sensitivity test by changing (namely increasing) SST values by approximately 1 K in a
 limited coastal perimeter. This is done to mimic the local warming effect that can occur due to the flux of hot water from the drainage ditch of the Solvay industrial plant. In such inner grid, a simplified 1-D ocean mixed layer model is used to account for the interaction between the sea and the atmosphere and correct the fluxes due to gustiness and precipitation. Preliminary analysis show that warmer sea temperatures (in the way they were simulated) may increase the probability of occurrence of waterspouts.
Bi-objective Search with Bi-directional A*
Creators: name: Ahmadi, Saman
name: Tack, Guido
name: Harabor, Daniel
name: Kilby, Philip
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences
subject: I.2.8

description: Bi-objective search is a well-known algorithmic problem, concerned with finding a set of optimal solutions in a two-dimensional domain. This problem has a wide variety of applications such as planning in transport systems or optimal control in energy systems. Recently, bi-objective A*-based search (BOA*) has shown state-of-the-art performance in large networks. This paper develops a bi-directional and parallel variant of BOA*, enriched with several speed-up heuristics. Our experimental results on 1,000 benchmark cases show that our bi-directional A* algorithm for bi-objective search (BOBA*) can optimally solve all of the benchmark cases within the time limit, outperforming the state of the art BOA*, bi-objective Dijkstra and bi-directional bi-objective Dijkstra by an average runtime improvement of a factor of five over all of the benchmark instances.
description: 16 pages, 4 figures, in Proceedings of The European Symposium on Algorithms 2021 (ESA21), Changes: including the backward search of BOBA*
Towards a method to anticipate dark matter signals with deep learning at the LHC
Creators: name: Arganda, Ernesto
name: Medina, Anibal D.
name: Perez, Andres D.
name: Szynkman, Alejandro
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Machine Learning (cs.LG)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We study several simplified dark matter (DM) models and their signatures at the LHC using neural networks. We focus on the usual monojet plus missing transverse energy channel, but to train the algorithms we organize the data in 2D histograms instead of event-by-event arrays. This results in a large performance boost to distinguish between standard model (SM) only and SM plus new physics signals. We use the kinematic monojet features as input data which allow us to describe families of models with a single data sample. We found that the neural network performance does not depend on the simulated number of background events if they are presented as a function of $S/\sqrt{B}$, where $S$ and $B$ are the number of signal and background events per histogram, respectively. This provides flexibility to the method, since testing a particular model in that case only requires knowing the new physics monojet cross section. Furthermore, we also discuss the network performance under incorrect assumptions about the true DM nature. Finally, we propose multimodel classifiers to search and identify new signals in a more general way, for the next LHC run.
description: 52 pages, 29 figures, 3 tables. v2: Added a subsection to briefly discuss and compare event-by-event combination versus histogram or ensemble classifiers. v3: minor changes
Additional file 6 of Putative positive role of inflammatory genes in fat deposition supported by altered gene expression in purified human adipocytes and preadipocytes from lean and obese adipose tissues
Creators: name: Sang-Hyeop Lee
name: Nak-Hyeon Choi
name: In-Uk Koh
name: Bong-Jo Kim
name: Lee, Song
name: Song-Cheol Kim
name: Choi, Sun Shim
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Computational Biology

description: Additional file 6: Figure S3. Schematic of the strategy for dividing the DEGs into eight subcategories‘LI-DEGs’ and ‘IO-DEGs’ are intersected. A gene is determined to be ‘progressive-up’ when the gene is upregulated both in ‘LI-DEGs’ and ‘IO-DEGs’. A gene is defined as ‘progressive-down’ when the gene is downregulated both in ‘LI-DEGs’ and ‘IO-DEGs’. A gene is ‘initial-up’ when the gene is upregulated in ‘LI-DEGs’ but not in ‘IO-DEGs’. A gene is ‘initial-down’ when the gene is downregulated in ‘LI-DEGs’ but not in ‘IO-DEGs’. A gene is ‘later-up’ when the gene is not upregulated in ‘LI-DEGs’ but is upregulated in ‘IO-DEGs’. A gene is ‘later-down’ when the gene is not downregulated in ‘LI-DEGs’ but is downregulated in ‘IO-DEGs. A gene is ‘up-to-down’ when the gene is upregulated in ‘LI-DEGs’ and downregulated in ‘IO-DEGs’ and ‘down-to-up’ when the reverse applies.
Saddle solutions for the fractional Choquard equation
Creators: name: Cui, Yin-Xin
name: Xia, Jiankang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We study the saddle solutions for the fractional Choquard equation \begin{align*} (-Δ)^{s}u+ u=(K_α\ast|u|^{p})|u|^{p-2}u, \quad x\in \mathbb{R}^N \end{align*} where $s\in(0,1)$, $N\geq 3$ and $K_α$ is the Riesz potential with order $α\in (0,N)$. For every Coxeter group $G$ with rank $1\leq k\leq N$ and $p\in[2,\frac{N+α}{N-2s})$, we construct a $G$-saddle solution with prescribed symmetric nodal configurations. This is a counterpart for the fractional Choquard equation of saddle solutions to the Choquard equation and further completes the existence of non-radial sign-changing solutions for this doubly nonlocal equation.
Time-reversal symmetry breaking and emergence in driven-dissipative Ising models
Creators: name: Paz, Daniel A.
name: Maghrebi, Mohammad F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Fluctuation-dissipation relations (FDRs) and time-reversal symmetry (TRS), two pillars of statistical mechanics, are both broken in generic driven-dissipative systems. These systems rather lead to non-equilibrium steady states far from thermal equilibrium. Driven-dissipative Ising-type models, however, are widely believed to exhibit effective thermal critical behavior near their phase transitions. Contrary to this picture, we show that both the FDR and TRS are broken even macroscopically at, or near, criticality. This is shown by inspecting different observables, both even and odd operators under time-reversal transformation, that overlap with the order parameter. Remarkably, however, a modified form of the FDR as well as TRS still holds, but with drastic consequences for the correlation and response functions as well as the Onsager reciprocity relations. Finally, we find that, at criticality, TRS remains broken even in the weakly-dissipative limit.
description: Updated according to Referee suggestions for Scipost submission
On the number of words with restrictions on the number of symbols
Creators: name: Becher, Verónica
name: Cesaratto, Eda
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A05, 05A10, 05A20

description: We show that, in an alphabet of $n$ symbols, the number of words of length $n$ whose number of different symbols is away from $(1-1/e)n$, which is the value expected by the Poisson distribution, has exponential decay in $n$. We use Laplace's method for sums and known bounds of Stirling numbers of the second kind. We express our result in terms of inequalities.
description: 16 pages, 4 figures. In this second version, we correct a constant factor in Eq. (4) and we provide sharper bounds in Proposition 5 together with a more detailed proof
Additional file 7 of Putative positive role of inflammatory genes in fat deposition supported by altered gene expression in purified human adipocytes and preadipocytes from lean and obese adipose tissues
Creators: name: Sang-Hyeop Lee
name: Nak-Hyeon Choi
name: In-Uk Koh
name: Bong-Jo Kim
name: Lee, Song
name: Song-Cheol Kim
name: Choi, Sun Shim
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Computational Biology

description: Additional file 7: Figure S4. PCA plot of the preAC-DEGs. The L-preAC (turquoise) and O-preAC (red) samples are dotted along the axis of the first two principal components (PC1 and PC2).