cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Black Hole Thermodynamics Based on Unitary Evolutions
Creators: name: Feng, Yu-Lei
name: Chen, Yi-Xin
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we try to construct black hole thermodynamics based on the fact that, the formation and evaporation of a black hole can be described by quantum unitary evolutions. First, we show that the Bekenstein-Hawking entropy $S_{BH}$ may not be a Boltzmann or thermal entropy. To confirm this statement, we show that the original black hole's "first law" may not simply be treated as the first law of thermodynamics formally, due to some missing metric perturbations caused by matter. Then, by including those (quantum) metric perturbations, we show that the black hole formation and evaporation can be described in a unitary manner effectively, through a quantum channel between the exterior and interior of the event horizon. In this way, the paradoxes of information loss and firewall can be resolved effectively. Finally, we show that black hole thermodynamics can be constructed in an ordinary way, by constructing statistical mechanics.
description: 16 pages, no figure, published version
Faulhaber polynomials and reciprocal Bernoulli polynomials
Creators: name: Kellner, Bernd C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11B57, 11B68

description: About four centuries ago, Johann Faulhaber developed formulas for the power sum $1^n + 2^n + \cdots + m^n$ in terms of $m(m+1)/2$. The resulting polynomials are called the Faulhaber polynomials. We first give a short survey of Faulhaber's work and discuss the results of Jacobi (1834) and the less known ones of Schröder (1867), which already imply some results published afterwards. We then show, for suitable odd integers $n$, the following properties of the Faulhaber polynomials $F_n$. The recurrences between $F_n$, $F_{n-1}$, and $F_{n-2}$ can be described by a certain differential operator. Furthermore, we derive a recurrence formula for the coefficients of $F_n$ that is the complement of a formula of Gessel and Viennot (1989). As a main result, we show that these coefficients can be expressed and computed in different ways by derivatives of generalized reciprocal Bernoulli polynomials, whose values can also be interpreted as central coefficients. This new approach finally leads to a simplified representation of the Faulhaber polynomials. As an application, we obtain some recurrences of the Bernoulli numbers, which are induced by symmetry properties.
description: 36 pages, 9 tables, 1 figure, final revised version
Stability constraints in triplet extension of MSSM
Creators: name: Das, Moumita
name: Di Chiara, Stefano
name: Roy, Sourov
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the stability constraints on the parameter space of a triplet extension of MSSM. Existence of unbounded from below directions in the potential can spoil successful Electroweak (EW) symmetry breaking by making the corresponding minimum unstable, and hence the model should be free from those directions. Avoiding those directions restricts the parameter space of the model. We derive four stability constraints, of which only three independent from each other. After scanning the model's parameter space for phenomenologically viable data points, we impose the stability constraints and find that only about a quarter of the data points features a stable EW minimum. At those data points featuring stability, $μ$ and the up Higgs soft mass turn out to be smaller than about a TeV in absolute value, which make the mass of the lightest chargino and neutralino smaller than about 700 GeV. Two relevant phenomenological consequences of lifting the unbounded from below directions are that the lightest Higgs boson decay rate to diphoton predicted by the triplet extension of MSSM generally features larger deviations from MSSM and fine tuning is actually higher, that what each of the two would be without imposing stability constraints.
description: 20 pages, 3 figures
Sonnenfleckenzeichnung Nr. 120.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 10.06.1986, 09:30, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1986

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Ab initio Bogoliubov coupled cluster theory for open-shell nuclei
Creators: name: Signoracci, Angelo
name: Duguet, Thomas
name: Hagen, Gaute
name: Jansen, Gustav
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Ab initio many-body methods address closed-shell nuclei up to mass A ~ 130 on the basis of realistic two- and three-nucleon interactions. Several routes to address open-shell nuclei are currently under investigation, including ideas which exploit spontaneous symmetry breaking. Singly open-shell nuclei can be efficiently described via the sole breaking of $U(1)$ gauge symmetry associated with particle number conservation, to account for their superfluid character. The present work formulates and applies Bogoliubov coupled cluster (BCC) theory, which consists of representing the exact ground-state wavefunction of the system as the exponential of a quasiparticle excitation cluster operator acting on a Bogoliubov reference state. Equations for the ground-state energy and cluster amplitudes are derived at the singles and doubles level (BCCSD) both algebraically and diagrammatically. The formalism includes three-nucleon forces at the normal-ordered two-body level. The first BCC code is implemented in $m$-scheme, which will eventually permit the treatment of doubly open-shell nuclei. Proof-of-principle calculations in an $N_{\text{max}}=6$ spherical harmonic oscillator basis are performed for $^{16,18,20}$O, $^{18}$Ne, $^{20}$Mg in the BCCD approximation with a chiral two-nucleon interaction, comparing to results obtained in standard coupled cluster theory when applicable. The breaking of $U(1)$ symmetry is monitored by computing the variance associated with the particle-number operator. The newly developed many-body formalism increases the potential span of ab initio calculations based on single-reference coupled cluster techniques tremendously, i.e. potentially to reach several hundred additional mid-mass nuclei. The new formalism offers a wealth of potential applications and further extensions dedicated to the description of ground and excited states of open-shell nuclei.
description: 22 pages, 13 figures
Panel Discussion Day 4
Creators: name: Pogosian, Levon
name: Lemos, Pablo
name: Colless, Matthew
name: Sanchez, Norma G.
Publisher: name: Zenodo
Year: 2020

description: This presentation collects discussion topics and few supporting slides for the panel discussion during the 4th day of the H0 2020 workshop, held on 25 June 2020. The panel discussion followed the presentations about: Weak Gravitational Lensing, BAO with DESI, The Sound Horizon from BBN and Theoretical explanations/solutions
Chirality as Generalized Spin-Orbit Interaction in Spintronics
Creators: name: Yu, Tao
name: Luo, Zhaochu
name: Bauer, Gerrit E. W.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: This review focuses on the chirality observed in the excited states of the magnetic order, dielectrics, and conductors that hold transverse spins when they are evanescent. Even without any relativistic effect, the transverse spin of the evanescent waves are locked to the momentum and the surface normal of their propagation plane. This chirality thereby acts as a generalized spin-orbit interaction, which leads to the discovery of various chiral interactions between magnetic, phononic, electronic, photonic, and plasmonic excitations in spintronics that mediate the excitation of quasiparticles into a single direction, leading to phenomena such as chiral spin and phonon pumping, chiral spin Seebeck, spin skin, magnonic trap, magnon Doppler, and spin diode effects. Intriguing analogies with electric counterparts in the nano-optics and plasmonics exist. After a brief review of the concepts of chirality that characterize the ground state chiral magnetic textures and chirally coupled magnets in spintronics, we turn to the chiral phenomena of excited states. We present a unified electrodynamic picture for dynamical chirality in spintronics in terms of generalized spin-orbit interaction and compare it with that in nano-optics and plasmonics. Based on the general theory, we subsequently review the theoretical progress and experimental evidence of chiral interaction, as well as the near-field transfer of the transverse spins, between various excitations in magnetic, photonic, electronic and phononic nanostructures at GHz time scales. We provide a perspective for future research before concluding this article.
description: 136 pages, 60 figures
Sonnenfleckenzeichnung Nr. 185.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 17.08.1986, 08:30, erstellt von Marco Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1986

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Manifold-Aware Deep Clustering: Maximizing Angles between Embedding Vectors Based on Regular Simplex
Creators: name: Tanaka, Keitaro
name: Sawata, Ryosuke
name: Takahashi, Shusuke
Publisher: name: arXiv
Year: 2021
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: This paper presents a new deep clustering (DC) method called manifold-aware DC (M-DC) that can enhance hyperspace utilization more effectively than the original DC. The original DC has a limitation in that a pair of two speakers has to be embedded having an orthogonal relationship due to its use of the one-hot vector-based loss function, while our method derives a unique loss function aimed at maximizing the target angle in the hyperspace based on the nature of a regular simplex. Our proposed loss imposes a higher penalty than the original DC when the speaker is assigned incorrectly. The change from DC to M-DC can be easily achieved by rewriting just one term in the loss function of DC, without any other modifications to the network architecture or model parameters. As such, our method has high practicability because it does not affect the original inference part. The experimental results show that the proposed method improves the performances of the original DC and its expansion method.
description: Accepted by Interspeech 2021
Computing fusion products of MV cycles using the Mirkovic-Vybornov isomorphism
Creators: name: Bai, Roger
name: Dranowski, Anne
name: Kamnitzer, Joel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Representation Theory (math.RT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 22E57 (Primary) 14D06 (Secondary)

description: The fusion of two Mirkovic-Vilonen cycles is a degeneration of their product, defined using the Beilinson-Drinfeld Grassmannian. In this paper, we put in place a conceptually elementary approach to computing this product in type $A$. We do so by transferring the problem to a fusion of generalized orbital varieties using the Mirkovic-Vybornov isomorphism. As an application, we explicitly compute all cluster exchange relations in the coordinate ring of the upper-triangular subgroup of $GL_4$, confirming that all the cluster variables are contained in the Mirkovic-Vilonen basis.
description: 33 pages
Sonnenfleckenzeichnung Nr. 105.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 26.05.1986, 12:00, erstellt von Michele Bianda, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1986

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Bevor Sie Coscine nutzen - Handreichung für Forschende an HAW
Creators: name: Birmans, Katrin
name: Tambornino, Philipp
name: Ullrich, Anna Valentine
Publisher: name: Zenodo
Year: 2024
Subjects: FDM
Forschungsdatenmanagement
Coscine
BMBF
Forschungsdaten
Handreichung
Forschungsdatenspeicher
FDM-Plattform
Research Data Management
HAW

description: Um die Forschungsdatenmanagement-Plattform Coscine optimal für Forschungsprojekte nutzen zu können, ist es sinnvoll, einige Fragen im Vorhinein zu klären. So können aufwendige Änderungen der Datenverwaltung im Nachhinein vermieden werden. Hierzu bietet die Handreichung hilfreiche Leitfragen und Erläuterungen für Forschende und FDM-Service-Personal an HAW in NRW (DH.NRW-Hochschulen).

FDM-Service-Mitarbeitende können die Handreichung in ihrer Beratung zu Coscine einsetzen und mit der Eingabemaske in der Kopfzeile des Dokuments auf ihre Hochschule anpassen.

Die Handreichung ist im Projekt Persist@HAW (FK: 16FDFH129), gefördert vom BMBF und der Europäischen Union (NextGenerationEU), entstanden.
description: Die Autor:innen sind alphabetisch sortiert und teilen sich die Erstautorschaft.
Spectral zeta function and non-perturbative effects in ABJM Fermi-gas
Creators: name: Hatsuda, Yasuyuki
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The exact partition function in ABJM theory on three-sphere can be regarded as a canonical partition function of a non-interacting Fermi-gas with an unconventional Hamiltonian. All the information on the partition function is encoded in the discrete spectrum of this Hamiltonian. We explain how (quantum mechanical) non-perturbative corrections in the Fermi-gas system appear from a spectral consideration. Basic tools in our analysis are a Mellin-Barnes type integral representation and a spectral zeta function. From a consistency with known results, we conjecture that the spectral zeta function in the ABJM Fermi-gas has an infinite number of "non-perturbative" poles, which are invisible in the semi-classical expansion of the Planck constant. We observe that these poles indeed appear after summing up perturbative corrections. As a consequence, the perturbative resummation of the spectral zeta function causes non-perturbative corrections to the grand canonical partition function. We also present another example associated with a spectral problem in topological string theory. A conjectured non-perturbative free energy on the resolved conifold is successfully reproduced in this framework.
description: 32 pages, 4 figures, v2: published version
Inclusive, prompt and non-prompt J/$ψ$ production at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV
Creators: name: ALICE Collaboration
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The transverse momentum ($p_{\rm T}$) dependence of the nuclear modification factor $R_{\rm AA}$ and the centrality dependence of the average transverse momentum $\langle p_{\rm T}\rangle$ for inclusive J/$ψ$ have been measured with ALICE for Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV in the e$^+$e$^-$ decay channel at mid-rapidity ($|y|<0.8$). The $\langle p_{\rm T}\rangle$ is significantly smaller than the one observed for pp collisions at the same centre-of-mass energy. Consistently, an increase of $R_{\rm AA}$ is observed towards low $p_{\rm T}$. These observations might be indicative of a sizable contribution of charm quark coalescence to the J/$ψ$ production. Additionally, the fraction of non-prompt J/$ψ$ from beauty hadron decays, $f_{\rm B}$, has been determined in the region $1.5 < p_{\rm T} < 10$ GeV/c in three centrality intervals. No significant centrality dependence of $f_{\rm B}$ is observed. Finally, the $R_{\rm AA}$ of non-prompt J/$ψ$ is discussed and compared with model predictions. The nuclear modification in the region $4.5 < p_{\rm T} < 10$ GeV/c is found to be stronger than predicted by most models.
description: 29 pages, 8 captioned figures, 5 tables authors from page 24, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/1589
Additional file 3: Figure S2. of TLR2 stimulation impairs anti-inflammatory activity of M2-like macrophages, generating a chimeric M1/M2 phenotype
Creators: name: Quero, Lilian
name: Edveena Hanser
name: Manigold, Tobias
name: Tiaden, André
name: Kyburz, Diego
Publisher: name: Figshare
Year: 2017
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Expression of characteristic anti-inflammatory M2 gene markers in M1 and M2 macrophages derived from blood of healthy donors (HD) or patients with rheumatoid arthritis (RA). Basal gene expression of M2 markers HMOX1, FOLR2, and SLC40A1 in M0 (monocytes), M1 (GM-CSF-differentiated), and M2 (M-CSF-differentiated) macrophages from HD (upper panel) or patients with RA (lower panel). Expression was measured by qRT-PCR. Values were normalized to UBC mRNA levels and expressed as 2−ΔCT ± SD. n = 4–5, * p
Unraveling the effectiveness and channel of unilateral anti-leakage policies
Creators: name: Li, Xinbei
name: Liu, Yu
name: Zhang, Jing
name: Yang, Lingyu
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 380105
subject: Environment and resource economics

description: Unilateral climate policies induce carbon leakage through competitiveness, demand, and energy channels. Identifying the effectiveness of different anti-leakage policies across these channels is crucial for climate policy design. This study uses the improved GTAP-E-Power model to analyze anti-leakage policies—free allowances, carbon border adjustment mechanism (CBAM), and climate clubs—within the EU Emissions Trading System (EU ETS). The analysis traces carbon leakage across regions and sectors, decomposing it by channel to assess each policy's effectiveness. Free allocation reduces carbon leakage across all channels but only marginally, decreasing the rate from 19.8% to 16.8%. CBAM lowers the leakage rate to 0.2%-9.8%, achieving negative leakage in competitiveness and demand channels but increasing it in the energy channel. Voluntary climate clubs, without penalties, mainly mitigate leakage among member countries but are less effective for non-members in the competitiveness and demand channels. The Buchanan club, which imposes CBAM penalties on non-member countries, achieves the most significant mitigation, reaching negative leakage (-1.4%), indicating the potential to fully resolve leakage. However, the above anti-leakage policies are less effective in the energy channel, potentially undermining efforts in other channels. Therefore, supply-side climate policies focusing on the energy channel require more attention to enhance overall leakage mitigation.
Lognormal semi-numerical simulations of the Lyman-$α$ forest: comparison with full hydrodynamic simulations
Creators: name: Arya, Bhaskar
name: Choudhury, Tirthankar Roy
name: Paranjape, Aseem
name: Gaikwad, Prakash
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Observations of the Lyman-$α$ (Ly$α$) forest in spectra of distant quasars enable us to probe the matter power spectrum at relatively small scales. With several upcoming surveys, it is expected that there will be a many-fold increase in the quantity and quality of data, and hence it is important to develop efficient simulations to forward model these data sets. One such semi-numerical method is based on the assumption that the baryonic densities in the intergalactic medium (IGM) follow a lognormal distribution. In this work, we test the robustness of the lognormal model of the Ly$α$ forest in recovering a set of IGM parameters by comparing with high-resolution Sherwood SPH simulations. We study the recovery of the parameters $T_0$ (temperature of the mean-density IGM), $γ$ (slope of the temperature-density relation) and $Γ_{12}$ (hydrogen photoionization rate) at $z \sim 2.5$ using a Markov Chain Monte Carlo (MCMC) technique for parameter estimation. Using three flux statistics, the probability distribution, the mean flux and the power spectrum, values of all three parameters, $T_0$, $γ$ and $Γ_{12}$ implied in the SPH simulations are recovered within $1 - σ$ ($\sim$ 9, 4 and 1% respectively) of the median (best-fit) values. We verify the validity of our results at different baryon smoothing filter, SNR, box size & resolution, and data seed and confirm that the lognormal model can be used as an efficient tool for modelling the Ly$α$ transmitted flux at $z \sim 2.5$.
description: 16 pages, 11 figures; v2: revised version accepted in MNRAS
5 Gründe für Coscine - Handreichung für Forschende an HAW
Creators: name: Birmans, Katrin
name: Tambornino, Philipp
name: Ullrich, Anna Valentine
Publisher: name: Zenodo
Year: 2024
Subjects: FDM
Forschungsdatenmanagement
Coscine
BMBF
Forschungsdaten
Handreichung
Forschungsdatenspeicher
FDM-Plattform
Research Data Management
HAW

description: Welche Vorteile bietet die Forschungsdatenmanagement-Plattform Coscine für die Verwaltung von Daten in Forschungsprojekten? Hierzu gibt die Handreichung einen schnellen Überblick über den landesgeförderten Dienst Coscine für Forschende und FDM-Service-Personal an HAW in NRW (DH.NRW-Hochschulen).

FDM-Service-Mitarbeitende können die Handreichung in ihrer Beratung zu Coscine einsetzen und mit der Eingabemaske in der Kopfzeile des Dokuments auf ihre Hochschule anpassen.

Die Handreichung ist im Projekt Persist@HAW (FK: 16FDFH129), gefördert vom BMBF und der Europäischen Union (NextGenerationEU), entstanden.
description: Die Autor:innen sind alphabetisch sortiert und teilen sich die Erstautorschaft.
Pew Research Center: American Trends Panel Wave 48
Creators: name: Pew Research Center
Publisher: name: Roper Center for Public Opinion Research
Year: 2020

description: President Donald Trump job performance (1); comfort discussing different topics with someone you don't know well (7); tone of political debate (6); follow government and public affairs (1); how often do you vote (1); feel judged for language you use to express yourself (1); change way you express yourself around others of different backgrounds (1); laugh out loud (1); how often do you go out of your way to help someone you don't know well (1); feelings towards different political groups (4); importance of using language that other people do not find offensive (1); reaction towards Trump's comments (15); how often do you discuss government and politics (1); raise federal minimum wage to 15 dollars (1); wall along United States border with Mexico (1); assault style weapons (1); openness to wide range of opinions and viewpoints (5); careful with language around identity topics (1); offensive language (4); news sources (3); comfort of different groups in expressing their political views (8); problem solving approach (1); important qualities for elected officials (18); share your policy views in hypothetical social situation (6); reaction to elected officials having scandals (1); your political side winning or losing (1); language of elected officials (28); reaction to political ideologies (8); comfort with disagreement (4); proven or new approaches to solving major problems in our country (1); clear solutions to major issues (1); certainty of political views (1); politics as struggle between right and wrong (1); close friends of different political parties and ideologies (6); offensive content on social media (2); state where you got educational degrees (2); political party of your spouse (1); Democratic control of House of Representatives (1); qualities for presidential candidates (9); 2020 Republican presidential nomination (1).
The Generalized Method of Wavelet Moments with Exogenous Inputs: a Fast Approach for the Analysis of GNSS Position Time Series
Creators: name: Cucci, Davide A.
name: Voirol, Lionel
name: Kermarrec, Gaël
name: Montillet, Jean-Philippe
name: Guerrier, Stéphane
Publisher: name: arXiv
Year: 2022
Subjects: subject: Methodology (stat.ME)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: The Global Navigation Satellite System (GNSS) daily position time series are often described as the sum of stochastic processes and geophysical signals which allow studying global and local geodynamical effects such as plate tectonics, earthquakes, or ground water variations. In this work we propose to extend the Generalized Method of Wavelet Moments (GMWM) to estimate the parameters of linear models with correlated residuals. This statistical inferential framework is applied to GNSS daily position time series data to jointly estimate functional (geophysical) as well as stochastic noise models. Our method is called GMWMX, with X standing for eXogeneous variable: it is semi-parametric, computationally efficient and scalable. Unlike standard methods such as the widely used Maximum Likelihood Estimator (MLE), our methodology offers statistical guarantees, such as consistency and asymptotic normality, without relying on strong parametric assumptions. At the Gaussian model, our results show that the estimated parameters are similar to the ones obtained with the MLE. The computational performances of our approach has important practical implications. Indeed, the estimation of the parameters of large networks of thousands of GNSS stations quickly becomes computationally prohibitive. Compared to standard methods, the processing time of the GMWMX is over $1000$ times faster and allows the estimation of large scale problems within minutes on a standard computer. We validate the performances of our method via Monte-Carlo simulations by generating GNSS daily position time series with missing observations and we consider composite stochastic noise models including processes presenting long-range dependence such as power-law or Matérn processes. The advantages of our method are also illustrated using real time series from GNSS stations located in the Eastern part of the USA.
description: 30 pages, 11 figures, 3 tables
IMPACT OF CLIMATE CHANGE ON THE STANDARD OF LIVING IN NIGERIA: AN ECONOMETRIC ANALYSIS (1990-2024).
Creators: name: Fr. Dr. Nnoje, Andrew Izuchukwu
Publisher: name: top journals
Year: 2025
Subjects: Climate change, humidity, productivity, temperature, standard

description: This study examines the impact of climate change on the standard of living in Nigeria, focusing on key climatic factors such as Mean Annual Temperature (MAT) and Mean Annual Relative Humidity (MARH). Using multiple regression analysis, the study analyzes data sourced from the World Bank and the Central Bank of Nigeria (CBN) Statistical Bulletin for the years under review. The findings reveal a negative relationship between climate change indicators (MAT and MARH) and the standard of living, measured by per capita income (PCI) in Nigeria. Specifically, rising temperatures and increasing humidity levels were found to adversely affect agricultural productivity, economic stability, and overall quality of life. The study underscores the need for targeted climate adaptation strategies and sustainable development policies to mitigate the negative effects of climate change and improve living standards
title: Автоматтандырылған ақпараттық-іздестіру жүйелері
Creators: name: ELS IPR BOOKS
Publisher: name: EDP Hub (Идипи Хаб), Ай Пи Ар Медиа
Year: 2025

description: Автоматтандырылған ақпараттық-іздестірудің алғашқы жүйелері 1960 жылдарында пайда болғанына қарамастан, мәтіндік құжаттарды жинақтау мен өңдеуге бағытталған коммерциялық ақпараттық-іздестіру жүйелері тек ХХ ғасырдың 80 жылдарының соңы мен 90 жылдардың басында ғана кең тарала бастады. Оқу құралында қолданыстағы заманауи ақпараттық-іздестіру жүйелерінің негіздері, сондай-ақ, ақпараттық-іздестіру каталогтары мен тезаурустары, толық және гипермәтіндік ақпараттық-іздестіру жүйелері, метаіздестіру және құжаттық ақпараттық-іздестіру жүйелері туралы мәліметтер берілген. «Автоматтандырылған ақпараттық-іздестіру жүйелері» курсын оқыту бойынша оқу бағдарламасы мен зертханалық жұмыстарды орындау және курсты оқыту әдістемесінің нұсқаулығы қарастырылған. Сонымен қатар курс бойынша тест сұрақтары мен ақпараттық-іздестіру машиналары бойынша глоссарий келтірілген. Оқу құралын «Ақпараттық-іздеу жүйелері және технологиялары» бағытындағы пәндер оқытылатын «Информатика», «Ақпараттық жүйелер», «Есептеу техникасы және бағдарламалық қамтамасыз ету» мамандықтарына арналған. Сонымен қатар, кәсіби-техникалық колледждердегі «Есептеу техникасы және бағдарламалық қамтамасыз ету» мамандығы бойынша ақпараттық ресурс деректерін іздеу технологияларына және сол бағыттағы сабақтас пәндер мен арнайы курстың жекеленген салалары бойынша оқитын студенттерге қосымша әдістемелік құрал ретінде пайдалануға болады.
Perihelion Activity of (3200) Phaethon Is Not Dusty: Evidence from STEREO/COR2 Observations
Creators: name: Hui, Man-To
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present an analysis of asteroid (3200) Phaethon using coronagraphic observations from 2008 to 2022 by the COR2 cameras onboard the twin Solar TErrestrial RElations Observatory (STEREO) spacecraft. Although undetected in individual images, Phaethon was visible in stacks combined from the same perihelion observations, yet only at small ($\lesssim$30°) but not large ($\gtrsim$150°) phase angles. The observations are in line with the contribution from a bare nucleus, thereby seriously contradicting the interpretation based on HI-1 observations that attributes the perihelion activity to the ejection of \micron-sized dust. We obtained an upper limit to the effective cross-section of \micron-sized dust to be $\lesssim \! 10^{5}$ m$^{2}$, at least three orders of magnitude smaller than earlier estimates based on HI-1 data. On the contrary, the COR2 observations cannot rule out the existence of mm-sized or larger debris around Phaethon. However, the fact that no postperihelion debris tail has ever been detected for Phaethon suggests the unimportance of such dust in the perihelion activity. We thus conclude that the perihelion activity of Phaethon is highly unlikely relevant to the ejection of dust. Rather, we deduce that the activity is associated with gas emissions, possibly Fe I and/or Na D lines. To verify our conjecture and to fully understand the perihelion activity of Phaethon, more observations at small heliocentric distances are desired. We compile a list of observing windows ideal for the search of gas emissions of the asteroid from ground telescopes. The best opportunities will be during total solar eclipses.
description: Accepted for publication in AJ; 18 pages, 3 tables, 8 figures
Sonnenfleckenzeichnung Nr. 269.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 25.11.1986, 08:00, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1986

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
title: Автоматтандырылған ақпараттық-іздестіру жүйелері
Creators: name: ELS IPR BOOKS
Publisher: name: EDP Hub (Идипи Хаб), Профобразование
Year: 2025

description: Оқу құралында қазіргі заманғы ақпараттық-іздеу жүйелерінің негіздері келтірілген. Ақпараттық-іздестіру каталогтары мен тезаурустары, толық және гипермәтіндік ақпараттық-іздестіру жүйелері, мета-талдау және деректі ақпараттық-іздестіру жүйелері туралы негізгі мәліметтер де сипатталған. Ақпараттық іздеу машиналары туралы глоссарий берілген. Оқу құралы басылым тақырыбына байланысты пәндерді оқитын «Есептеу техникасы және ақпараттық желілер (түрлері бойынша)» мамандығының ТжКБ студенттеріне арналған.
Bibliometrie - Eine Einführung
Creators: name: Taubert, Niels
Publisher: name: Kolloquium Wissensinfrastruktur
Year: 2017

description: Bibliometrie wird heute vor allem mit der Evaluierung von Forschungsleistungen in Verbindung gebracht. Dabei ist das Forschungsfeld wesentlich reichhaltiger. Nach einer kurzen begrifflichen Klärung zeigt der Vortrag verschiedene Anwendungsgebiete auf und arbeitet heraus, dass zwischen dem Einsatz der Bibliometrie und der Publikationstätigkeit von WissenschaftlerInnen Rückkopplungsbeziehungen bestehen. In diesen Problemaufriß werden die von der Universitätsbibliothek angebotenen bibliometrischen Dienstleistungen eingeordnet.
description: Kolloquium Wissensinfrastruktur, Sommersemester 2017
Sonnenfleckenzeichnung Nr. 183.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 15.08.1986, 08:00, erstellt von Michele Bianda, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1986

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Comparisons of total power loss measurements performed by Epstein frame under operational temperatures
Creators: name: Brunt, Daniel
name: Wilson, Adam
name: Finch, Graeme
name: Harmon, Stuart
name: Pasquale, Massimo
name: Banu, Nicoleta
name: Ferrara, Enzo
name: Fiorillo, Fausto
name: amanathan Mathavan Jeyabalan, Ram Kumar
name: Vakil, Gaurang Indravadan
Publisher: name: Zenodo
Year: 2023
Subjects: Power loss, Temperature, Non oriented FeSi, Fe laminations, FeCo

description: The transition towards electrification and greener technologies will see an unprecedented uptake in electrical machines, which will require machines with greater efficiencies to be designed and built. To achieve this a greater understanding of the magnetic materials is needed. It has long been known that the magnetic properties of materials are dramatically influenced by the operational conditions; frequency, temperature, and stress all play a significant role in determining the material’s AC power loss and magnetic properties. As a consequence, there has been increasing industrial demand for representative material datasets. To facilitate this, the metrology and good practices associated with measurements made at operational conditions needs to be better defined to allow for future standardisation.
Additional file 2 of McEnhancer: predicting gene expression via semi-supervised assignment of enhancers to target genes
Creators: name: Hafez, Dina
name: Aslihan Karabacak
name: Krueger, Sabrina
name: Yih-Chii Hwang
name: Li-San Wang
name: Zinzen, Robert
name: Ohler, Uwe
Publisher: name: Figshare
Year: 2017
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Computational Biology

description: Materials and methods supplement. This text explains McEnhancer in more details; phase I and II of McEnhancer, model selection parameters and cross validation. (PDF 236 kb)
Metallicity gradients in local field star-forming galaxies: Insights on inflows, outflows, and the coevolution of gas, stars and metals
Creators: name: Ho, I-Ting
name: Kudritzki, Rolf-Peter
name: Kewley, Lisa J.
name: Zahid, H. Jabran
name: Dopita, Michael A.
name: Bresolin, Fabio
name: Rupke, David S. N.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present metallicity gradients in 49 local field star-forming galaxies. We derive gas-phase oxygen abundances using two widely adopted metallicity calibrations based on the [OIII]/Hbeta, [NII]/Halpha and [NII]/[OII] line ratios. The two derived metallicity gradients are usually in good agreement within +/-0.14 dex/R25 (R25 is the B-band iso-photoal radius), but the metallicity gradients can differ significantly when the ionisation parameters change systematically with radius. We investigate the metallicity gradients as a function of stellar mass (8 MB > -22). When the metallicity gradients are expressed in dex/kpc, we show that galaxies with lower mass and luminosity, on average, have steeper metallicity gradients. When the metallicity gradients are expressed in dex/R25, we find no correlation between the metallicity gradients, and stellar mass and luminosity. We provide a local benchmark metallicity gradient of field star-forming galaxies useful for comparison with studies at high redshifts. We investigate the origin of the local benchmark gradient using simple chemical evolution models and observed gas and stellar surface density profiles in nearby field spiral galaxies. Our models suggest that the local benchmark gradient is a direct result of the coevolution of gas and stellar disk under virtually closed-box chemical evolution when the stellar-to-gas mass ratio becomes high (>>0.3). These models imply low current mass accretion rates (<0.3xSFR), and low mass outflow rates (<3xSFR) in local field star-forming galaxies.
description: 25 pages, 21 figures, accepted to MNRAS
title: Automatic Generation of Virtual Work Guide for Complex Procedures: A Case
Creators: name: Liu, Shan
name: Shen, Yuzhong
Publisher: name: Old Dominion University Libraries
Year: 2023

description: Practical work guides for complex procedures are significant and highly affect the efficiency and accuracy of on-site users. This paper presents a technique to generate virtual work guides automatically for complex procedures. Firstly, the procedure information is extracted from the electronic manual in PDF format. And then, the extracted procedure steps are mapped to the virtual model parts in preparation for animation between adjacent steps. Next, smooth animations of the procedure are generated based on a 3D natural cubic spline curve to improve the spatial ability of the work guide. In addition, each step's annotation is automatically adjusted to improve the visual effect of the work guide. A troubleshooting procedure example of the M16A4 Rifle shows that the generated work guide is well instructive, which provides the interactive simulation of the procedure and process-based display of technical annotation.
The splitting process in free probability theory
Creators: name: Ebrahimi-Fard, Kurusch
name: Patras, Frederic
Publisher: name: arXiv
Year: 2015
Subjects: subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: Free cumulants were introduced by Speicher as a proper analog of classical cumulants in Voiculescu's theory of free probability. The relation between free moments and free cumulants is usually described in terms of Moebius calculus over the lattice of non-crossing partitions. In this work we explore another approach to free cumulants and to their combinatorial study using a combinatorial Hopf algebra structure on the linear span of non-crossing partitions. The generating series of free moments is seen as a character on this Hopf algebra. It is characterized by solving a linear fixed point equation that relates it to the generating series of free cumulants. These phenomena are explained through a process similar to (though different from) the arborification process familiar in the theory of dynamical systems, and originating in Cayley's work.
Additional file 1 of Sequencing of hsp70 for discernment of species from the Leishmania (Viannia) guyanensis complex from endemic areas in Colombia
Creators: name: Hoyos, Juliana
name: Rosales-Chilama, Mariana
name: León, Cielo
name: González, Camila
name: Gómez, María Adelaida
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Reference sequencesof Leishmania spp. obtained from GenBank database for phylogeneticanalysis. Table S2. Summary of Bayesfactor comparisons for phylogenetic hypotheses tested: monophyly (constrained)and non-monophyly (unconstrained) of the strains typed as L. (V.)panamensis. All the strains previously typed as L. (V.)panamensis by monoclonal antibodies, MLEE and ITS1 sequencing were included.
Unique sparse decomposition of low rank matrices
Creators: name: Jin, Dian
name: Bing, Xin
name: Zhang, Yuqian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Machine Learning (cs.LG)
subject: Numerical Analysis (math.NA)
subject: Signal Processing (eess.SP)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The problem of finding the unique low dimensional decomposition of a given matrix has been a fundamental and recurrent problem in many areas. In this paper, we study the problem of seeking a unique decomposition of a low rank matrix $Y\in \mathbb{R}^{p\times n}$ that admits a sparse representation. Specifically, we consider $Y = A X\in \mathbb{R}^{p\times n}$ where the matrix $A\in \mathbb{R}^{p\times r}$ has full column rank, with $r < \min\{n,p\}$, and the matrix $X\in \mathbb{R}^{r\times n}$ is element-wise sparse. We prove that this sparse decomposition of $Y$ can be uniquely identified, up to some intrinsic signed permutation. Our approach relies on solving a nonconvex optimization problem constrained over the unit sphere. Our geometric analysis for the nonconvex optimization landscape shows that any {\em strict} local solution is close to the ground truth solution, and can be recovered by a simple data-driven initialization followed with any second order descent algorithm. At last, we corroborate these theoretical results with numerical experiments.
description: Accepted by 2021 Neurips, in IEEE Transactions on Information Theory, 2022
Sonnenfleckenzeichnung Nr. 177.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 09.08.1986, 07:30, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1986

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 72.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 08.04.1986, 07:30, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1986

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 26.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 07.02.1986, 08:45, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1986

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)