cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Association fairness in Wi-Fi and LTE-U coexistence
Creators: name: Sathya, Vanlin
name: Mehrnoush, Morteza
name: Ghosh, Monisha
name: Roy, Sumit
Publisher: name: arXiv
Year: 2018
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper we address the issue of association fairness when Wi-Fi and LTE unlicensed (LTE-U) coexist on the same channel in the unlicensed 5 GHz band. Since beacon transmission is the first step in starting the association process in Wi-Fi, we define association fairness as how fair LTE-U is in allowing Wi-Fi to start transmitting beacons on a channel that it occupies with a very large duty cycle. According to the LTE-U specification, if a LTE-U base station determines that a channel is vacant, it can transmit for up to 20 ms and turn OFF for only 1 ms, resulting in a duty cycle of 95%. In an area with heavy spectrum usage, there will be cases when a Wi-Fi access point wishes to share the same channel, as it does today with Wi-Fi. We study, both theoretically and experimentally, the effect that such a large LTE-U duty cycle can have on the association process, specifically Wi-Fi beacon transmission and reception. We demonstrate via an experimental set-up using National Instrument (NI) USRPs that a significant percentage of Wi-Fi beacons will either not be transmitted in a timely fashion or will not be received at the LTE-U BS thus making it difficult for the LTE-U BS to adapt its duty cycle in response to the Wi-Fi usage. Our experimental results corroborate our theoretical analysis. We compare the results with Wi-Fi/Wi-Fi coexistence and demonstrate that LTE-U/Wi-Fi coexistence is not fair when it comes to initial association since there is a much larger percentage of beacon errors in the latter case. Hence, the results in the paper indicate that in order to maintain association fairness, a LTE-U BS should not transmit at such high duty cycles, even if it deems the channel to be vacant.
description: Accepted in IEEE WCNC 2018, Barcelona, Spain
Massive Dark Matter Halos around Bright Isolated Galaxies in the 2dFGRS
Creators: name: Norberg, Peder
name: Frenk, Carlos S.
name: Cole, Shaun
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We identify a large sample of isolated bright galaxies and their fainter satellites in the 2dF Galaxy Redshift Survey (2dFGRS). We analyse the dynamics of ensembles of these galaxies selected according to luminosity and morphological type by stacking the positions of their satellites and estimating the velocity dispersion of the combined set. We test our methodology using realistic mock catalogues constructed from cosmological simulations. The method returns an unbiased estimate of the velocity dispersion provided that the isolation criterion is strict enough to avoid contamination and that the scatter in halo mass at fixed primary luminosity is small. Using a maximum likelihood estimator that accounts for interlopers, we determine the satellite velocity dispersion within a projected radius of 175 kpc/h. The dispersion increases with the luminosity of the primary and is larger for elliptical galaxies than for spiral galaxies of similar bJ luminosity. Calibrating the mass-velocity dispersion relation using our mock catalogues, we find a dynamical mass within 175 kpc/h of M_175 ~ 4.0^{+2.3}_{-1.5} 10^12 (L_bJ/L_*) M_sol/h for elliptical galaxies and M_175 ~ 6.3^{+6.3}_{-3.1} 10^11 (L_bJ/L_*)^1.6 Msol/h for spiral galaxies. Finally, we compare our results with recent studies and investigate their limitations using our mock catalogues.
description: 19 pages, 16 figures, MNRAS accepted
Productivity costs due to human papillomavirus-related cancer mortality in the United Kingdom
Creators: name: Engelbrecht, Kayla
name: Ovcinnikova, Olga
name: Ntais, Dionysios
name: Shoel, Hayley
name: Meiwald, Anne
name: Hughes, Robert
name: Weston, Georgie
name: Morais, Edith
name: Bencina, Goran
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Human papillomavirus (HPV) causes several cancers such as cervical cancer and some head and neck (oral cavity, pharynx, and larynx), vulval, vaginal, anal, and penile cancers. As HPV vaccination is available, there is potential to prevent these cancers attributed to HPV and consequently the burden associated with them. The aim of this analysis was to estimate the number of HPV-related cancer deaths and the productivity costs due to years of life lost (YLL) in the United Kingdom (UK). A model was developed utilizing UK 2019 mortality data sourced from country-specific databases for England, Scotland, Wales, and Northern Ireland for the following HPV-related cancers: head and neck (ICD-10 C00-14 and C32), cervix uteri (C53), vaginal (C51), vulval (C52), anal (C21), and penile (C60). The proportion of deaths and years of life lost (YLL) due to HPV were estimated using HPV attributable fractions for each anatomic location from the published literature. Labor force participation, retirement ages, and mean annual earnings, discounted at 3.5% annually, were applied to YLL to calculate the present value of future lost productivity (PVFLP). A total of 1817 deaths due to HPV-related cancers were reported in the UK in 2019 resulting in 31,804 YLL. Restricting to only YLL that occurred prior to retirement age yielded a total YPLL of 11,765 and a total PVFLP of £187,764,978. There is a high disease burden in the UK for HPV-related cancers, with a large economic impact on the wider economy due to productivity losses. Implementing and reinforcing public health measures to maintain high HPV vaccination coverage in both males and females may further facilitate reduction of this burden.
Sampling strategies for the Herman-Kluk propagator of the wavefunction
Creators: name: Kröninger, Fabian
name: Lasser, Caroline
name: Vaníček, Jiří
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Numerical Analysis (math.NA)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: When the semiclassical Herman-Kluk propagator is used for evaluating quantum-mechanical observables or time-correlation functions, the initial conditions for the guiding trajectories are typically sampled from the Husimi density. Here, we employ this propagator to evolve the wavefunction itself. We investigate two grid-free strategies for the initial sampling of the Herman-Kluk propagator applied to the wavefunction and validate the resulting time-dependent wavefunctions evolved in harmonic and anharmonic potentials. In particular, we consider Monte Carlo quadratures based either on the initial Husimi density or on its square root as possible and most natural sampling densities. We prove analytical convergence error estimates and validate them with numerical experiments on the harmonic oscillator and on a series of Morse potentials with increasing anharmonicity. In all cases, sampling from the square root of Husimi density leads to faster convergence of the wavefunction.
description: 12 pages, 8 figures
Neural Automated Essay Scoring and Coherence Modeling for Adversarially Crafted Input
Creators: name: Farag, Youmna
name: Yannakoudakis, Helen
name: Briscoe, Ted
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: We demonstrate that current state-of-the-art approaches to Automated Essay Scoring (AES) are not well-suited to capturing adversarially crafted input of grammatical but incoherent sequences of sentences. We develop a neural model of local coherence that can effectively learn connectedness features between sentences, and propose a framework for integrating and jointly training the local coherence model with a state-of-the-art AES model. We evaluate our approach against a number of baselines and experimentally demonstrate its effectiveness on both the AES task and the task of flagging adversarial input, further contributing to the development of an approach that strengthens the validity of neural essay scoring models.
description: 9, NAACL 2018
Productivity costs due to human papillomavirus-related cancer mortality in the United Kingdom
Creators: name: Engelbrecht, Kayla
name: Ovcinnikova, Olga
name: Dionysios, Ntais
name: Shoel, Hayley
name: Meiwald, Anne
name: Hughes, Robert
name: Weston, Georgie
name: Morais, Edith
name: Bencina, Goran
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Human papillomavirus (HPV) causes several cancers such as cervical cancer and some head and neck (oral cavity, pharynx, and larynx), vulval, vaginal, anal, and penile cancers. As HPV vaccination is available, there is potential to prevent these cancers attributed to HPV and consequently the burden associated with them. The aim of this analysis was to estimate the number of HPV-related cancer deaths and the productivity costs due to years of life lost (YLL) in the United Kingdom (UK). A model was developed utilizing UK 2019 mortality data sourced from country-specific databases for England, Scotland, Wales, and Northern Ireland for the following HPV-related cancers: head and neck (ICD-10 C00-14 and C32), cervix uteri (C53), vaginal (C51), vulval (C52), anal (C21), and penile (C60). The proportion of deaths and years of life lost (YLL) due to HPV were estimated using HPV attributable fractions for each anatomic locations from the published literature. Labor force participation, retirement ages, and mean annual earnings, discounted at 3.5% annually, were applied to YLL to calculate the present value of future lost productivity (PVFLP). A total of 1,817 deaths due to HPV-related cancers were reported in the UK in 2019 resulting in 31,804 YLL. Restricting to only YLL that occurred prior to retirement age yielded a total YPLL of 11,765 and a total PVFLP of £187,764,978. There is a high disease burden in the UK for HPV-related cancers, with a large economic impact on the wider economy due to productivity losses. Implementing and reinforcing public health measures to maintain high HPV vaccination coverage in both males and females may further facilitate reduction of this burden.
Constraints on heterotic M-theory from s-cobordism
Creators: name: Sati, Hisham
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Geometric Topology (math.GT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We interpret heterotic M-theory in terms of h-cobordism, that is the eleven-manifold is a product of the ten-manifold times an interval is translated into a statement that the former is a cobordism of the latter which is a homtopy equivalence. In the non-simply connected case, which is important for model building, the interpretation is then in terms of s-cobordism, so that the cobordism is a simple-homotopy equivalence. This gives constraints on the possible cobordisms depending on the fundamental groups and hence provides a characterization of possible compactification manifolds using the Whitehead group-- a quotient of algebraic K-theory of the integral group ring of the fundamental group-- and a distinguished element, the Whitehead torsion. We also consider the effect on the dynamics via diffeomorphisms and general dimensional reduction, and comment on the effect on F-theory compactifications.
description: 19 pages, references added, expanded discussion on relating torsion to phenomenology, published version
Ultra-Sensitive Hot-Electron Nanobolometers for Terahertz Astrophysics
Creators: name: Wei, Jian
name: Olaya, David
name: Karasik, Boris
name: Pereverzev, Sergey
name: Sergeev, Andrei
name: Gershenson, Michael
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Astrophysics (astro-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The background-limited spectral imaging of the early Universe requires spaceborne terahertz (THz) detectors with the sensitivity 2-3 orders of magnitude better than that of the state-of-the-art bolometers. To realize this sensitivity without sacrificing operating speed, novel detector designs should combine an ultrasmall heat capacity of a sensor with its unique thermal isolation. Quantum effects in thermal transport at nanoscale put strong limitations on the further improvement of traditional membrane-supported bolometers. Here we demonstrate an innovative approach by developing superconducting hot-electron nanobolometers in which the electrons are cooled only due to a weak electron-phonon interaction. At T<0.1K, the electron-phonon thermal conductance in these nanodevices becomes less than one percent of the quantum of thermal conductance. The hot-electron nanobolometers, sufficiently sensitive for registering single THz photons, are very promising for submillimeter astronomy and other applications based on quantum calorimetry and photon counting.
description: 19 pages, 3 color figures
On the distribution of rank and crank statistics for integer partitions
Creators: name: Zhou, Nian Hong
Publisher: name: arXiv
Year: 2018
Subjects: subject: Number Theory (math.NT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: Primary: 11P82, Secondary: 05A16, 05A17

description: Let $k$ be a positive integer and $m$ be an integer. Garvan's $k$-rank $N_k(m,n)$ is the number of partitions of $n$ into at least $(k-1)$ successive Durfee squares with $k$-rank equal to $m$. In this paper give some asymptotics for $N_k(m,n)$ with $|m|\ge \sqrt{n}$ as $n\rightarrow \infty$. As a corollary, we give a more complete answer for the Dyson's crank distribution conjecture. We also establish some asymptotic formulas for finite differences of $N_k(m,n)$ with respect to $m$ with $m\gg \sqrt{n}\log n$.
description: typos corrected
Unpunctual in diversity: The effect of stand species richness on spring phenology of deciduous tree stands varies among species and years
Creators: name: Heinecke, T
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 310308
subject: Terrestrial ecology

description: Repository for publication:Unpunctual in diversity: The effect of stand species richness on spring phenology of deciduous tree stands varies among species and yearsby T.Heinecke, P. De Frenne, K.Verheyen, I.Nijs, E.Matthysen and M.Campioli
Modular Arithmetic Erasure Channels and Their Multilevel Channel Polarization
Creators: name: Sakai, Yuta
name: Iwata, Ken-ichi
name: Fujisaki, Hiroshi
Publisher: name: arXiv
Year: 2018
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This study proposes \emph{modular arithmetic erasure channels} (MAECs), a novel class of erasure-like channels with an input alphabet that need not be binary. This class contains the binary erasure channel (BEC) and some other known erasure-like channels as special cases. For MAECs, we provide recursive formulas of Arıkan-like polar transform to simulate channel polarization. In other words, we show that the synthetic channels of MAECs are equivalent to other MAECs. This is a generalization of well-known recursive formulas of the polar transform for BECs. Using our recursive formulas, we also show that a recursive application of the polar transform for MAECs results in \emph{multilevel channel polarization,} which is an asymptotic phenomenon that is characteristic of non-binary polar codes. Specifically, we establish a method to calculate the limiting proportions of the partially noiseless and noisy channels that are generated as a result of multilevel channel polarization for MAECs. In the particular case of MAECs, this calculation method solves an open problem posed by Nasser (2017) in the study of non-binary polar codes.
description: 42 pages, 4 figures, 1 table, accepted by IEEE Transactions on Information Theory on April 2020
A sharp upper bound for the first Dirichlet eigenvalue and the growth of the isoperimetric constant of convex domains
Creators: name: Freitas, Pedro
name: Krejcirik, David
Publisher: name: arXiv
Year: 2007
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We show that as the ratio between the first Dirichlet eigenvalues of a convex domain and of the ball with the same volume becomes large, the same must happen to the corresponding ratio of isoperimetric constants. The proof is based on the generalization to arbitrary dimensions of Polya and Szego's 1951 upper bound for the first eigenvalue of the Dirichlet Laplacian on planar star-shaped domains which depends on the support function of the domain. As a by-product, we also obtain a sharp upper bound for the spectral gap of convex domains.
description: LaTeX, 10 pages; to appear in Proc. Amer. Math. Soc
title: A SEARCH FOR MILLIMETER-WAVE EMISSION FROM HCN AND OTHER MOLECULES IN COMET BRADFIELD (1979)
Creators: name: EKELUND, L
name: Irvine, William M.
name: ANDERSSON, C
name: SCHLOERB, FP
name: ROBINSON, SE
Publisher: name: University of Massachusetts Amherst
Year: 1981
Subjects: subject: Astrophysics and Astronomy

description: Millimeter-wave emission from HCN, CS, CH3OH, and two unidentified lines (previously observed in Comet Kohoutek (1973 XII)) was sought and not detected from Comet Bradfield (1979l) after perihelion passage. Limits on column densities and production rates are derived. In the case of HCN, the production rate is less than that reported for Comet Kohoutek, even after scaling relative to the observed OH emission from each comet.
title: AN, Registre des écrous du Châtelet, Y5266, f. p1000788
Creators: name: Claustre, Julie
name: Nationales, Archives
name: Archives Nationales
name: Claustre, Julie
name: ArchivesNationales/J.CLAUSTRE/H.REGAZZI/2020
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Châtelet
subject: registre

description: Registre des écrous du Châtelet, Archives Nationales, Y5266. Numérisation en mode image.
description: Bibliographic citation: Archives Nationales, Registre des écrous du Châtelet, Y5266, f. p1000788
Multi-person 3D pose estimation from unlabelled data
Creators: name: Rodriguez-Criado, Daniel
name: Bachiller, Pilar
name: Vogiatzis, George
name: Manso, Luis J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Its numerous applications make multi-human 3D pose estimation a remarkably impactful area of research. Nevertheless, assuming a multiple-view system composed of several regular RGB cameras, 3D multi-pose estimation presents several challenges. First of all, each person must be uniquely identified in the different views to separate the 2D information provided by the cameras. Secondly, the 3D pose estimation process from the multi-view 2D information of each person must be robust against noise and potential occlusions in the scenario. In this work, we address these two challenges with the help of deep learning. Specifically, we present a model based on Graph Neural Networks capable of predicting the cross-view correspondence of the people in the scenario along with a Multilayer Perceptron that takes the 2D points to yield the 3D poses of each person. These two models are trained in a self-supervised manner, thus avoiding the need for large datasets with 3D annotations.
Venus upper clouds and the UV-absorber from MESSENGER/MASCS observations
Creators: name: Perez-Hoyos, S.
name: Sanchez-Lavega, A.
name: Garcıa-Munoz, A.
name: Irwin, P. G. J.
name: Peralta, J.
name: Holsclaw, G.
name: McClintock, W. M.
name: Sanz-Requena, J. F.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: One of the most intriguing, long-standing questions regarding Venus' atmosphere is the origin and distribution of the unknown UV-absorber, responsible for the absorption band detected at the near-UV and blue range of Venus' spectrum. In this work, we use data collected by MASCS spectrograph on board the MESSENGER mission during its second Venus flyby in June 2007 to address this issue. Spectra range from 0.3 μm to 1.5 μm including some gaseous H2O and CO2 bands, as well as part of the SO2 absorption band and the core of the UV absorption. We used the NEMESIS radiative transfer code and retrieval suite to investigate the vertical distribution of particles in the Equatorial atmosphere and to retrieve the imaginary refractive indices of the UV-absorber, assumed to be well mixed with Venus' small mode-1 particles. The results show an homogeneous Equatorial atmosphere, with cloud tops (height for unity optical depth) at 75+/-2 km above surface. The UV absorption is found to be centered at 0.34+/-0.03 μm with a full width half maximum of 0.14+/-0.01 μm. Our values are compared with previous candidates for the UV aerosol absorber, among which disulfur oxide (S2O) and dioxide disulfur (S2O2) provide the best agreement with our results.
description: 43 pages, 16 figures
Programação do curso ANÁLISE DE DADOS E ESTIMAÇÃO DE PARÂMETROS
Creators: name: Kalid, Ricardo de Araújo
name: Magalhães, Welington Ferreira
name: Santana, Márcio Antonio Aparecido
Publisher: name: Zenodo
Year: 2021
Subjects: análise de dados
estimação de parâmetros
reconciliação de dados
calibração univariada
calibração bivariada
calibração unidirecional
calibração bidirecional
simultânea reconciliação de dados e estimação de parâmetros
avaliação da incerteza de parâmetros ajustados
região de abrangência de parâmetros estimados

description: Programa da disciplina: ANÁLISE DE DADOS E ESTIMAÇÃO DE PARÂMETROS Período das aulas: do dia 11/8/2021 a 22/12/2021 Dias das aulas: quartas-feiras Horário das aulas: das 19 h às 22 h Carga horária: 60 h Sala física: as aulas serão transmitidas pela internet. Sala virtual: canal do YouTube do prof. Ricardo Kalid Docentes: Ricardo de Araújo Kalid (UFSB); Wellington Ferreira de Magalhães (UFMG); Márcio Antonio Aparecido Santa (INPE).
description: {"references": ["PINTO, J.C. e Schwaab, M. An\u00e1lise de Dados Experimentais I. Fundamentos de Estat\u00edstica e Estima\u00e7\u00e3o de Par\u00e2metros. Editora E-Papers (ISBN 9798576500888)", "ALBERTAZZI, Armando; Sousa, Andr\u00e9. METROLOGIA: Cient\u00edfica e industrial. Manole", "BIPM, IEC, IFC, ILAC, ISO, IUPAC, et al., Vocabul\u00e1rio Internacional de Metrologia - VIM Conceitos fundamentais e gerais e termos associados, org. Inmetro, 1o ed (Rio de Janeiro-RJ/ BR e Caparica/PT: Inmetro, 2012) ", "INMETRO, O SISTEMA INTERNACIONAL DE UNIDADES: vers\u00e3o para consulta p\u00fablica (SI), org. INMETRO, Tradu\u00e7\u00e3o l (Xer\u00e9m, RJ, BR: INMETRO, 2021) ", "BIPM, IEC, IFCC, ILAC, ISO, IUPAC, IUPAP and OIML, GUM - Guia para a Express\u00e3o de Incerteza de Medi\u00e7\u00e3o, org. IUPAP and OIML BIPM, IEC, IFCC, ILAC, ISO, IUPAC, Inmetro, 1a (Rio de Janeiro, RJ, BR: Inmetro, 2012) ", "Bard, Yonathan, e Jonathan F. Bard, Nonlinear Parameter Estimation, org. PRESS LTD- ELSEVIER SCIENCE LTD, 1o ed (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 1974)", "Kalid, Ricardo de Ara\u00fajo, Classifica\u00e7\u00e3o das grandezas e vari\u00e1veis (Itabuna, BA, BR, 2021) ", "Kalid, Ricardo de Ara\u00fajo, \"Diapositivos - modelo de apresenta\u00e7\u00e3o Teclim-UFSB - Copia\" (Itabuna, BA, BR: UFSB, 2021), p. 7 "]}
Development of a user-friendly application to support long-term digital preservation using Archivematica
Creators: name: Nakamura, Satoru
name: Kim, Boyoung
name: Minamiyama, Yasuyuki
Publisher: name: Zenodo
Year: 2024
Subjects: Work on automating curation processes
Building trust and transparency into research and curation techniques, costs, and workflows
Digital Preservation
Archivematica
OAIS

description: In this study, we focused on the challenges related to the long-term preservation of digital data and developed a simplified operation application based on Archivematica. There are barriers to its use, such as the need for specialized knowledge and its complex settings and customization. To address these challenges, we developed an application that automatically complements the complex settings and customization aspects of Archivematica.
Cluster counts: calibration issue or new physics?
Creators: name: Sakr, Ziad
name: Ilić, Stéphane
name: Blanchard, Alain
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In recent years, the amplitude of matter fluctuations inferred from low-redshift probes has been found to be generally lower than the value derived from CMB observations in the $Λ$CDM model. This tension has been exemplified by Sunyaev-Zel'dovich and X-ray cluster counts which, when using their Planck standard cluster mass calibration, yield a value of $σ_8$ , appreciably lower than estimations based on the latest Planck CMB measurements. In this work we examine whether non-minimal neutrino masses can alleviate this tension substantially. We used the cluster X-ray temperature distribution function derived from a flux-limited sample of local X-ray clusters, combined with Planck CMB measurements. These datasets were compared to $Λ$CDM predictions based on recent mass function, adapted to account for the effects of massive neutrinos. Treating the clusters mass calibration as a free parameter, we examined whether the data favours neutrino masses appreciably higher than the minimal 0.06 eV value. Using Markov chain Monte Carlo methods, we found no significant correlation between the mass calibration of clusters and the sum of neutrino masses, meaning that massive neutrinos do not noticeably alleviate the above-mentioned Planck CMB--clusters tension. The addition of other datasets (BAO and Ly-$α$) reinforces those conclusions. As an alternative possible solution to the tension, we introduced a simple, phenomenological modification of gravity by letting the growth index $γ$ vary as an additional free parameter. We find that the cluster mass calibration is robustly correlated with the $γ$ parameter, insensitively to the presence of massive neutrinos or/and additional data used. We conclude that the standard Planck mass calibration of clusters, if consolidated, would represent evidence for new physics beyond $Λ$CDM with massive neutrinos.
description: 12 pages, 12 figures, updated to match version published in A&A
Bemerkungen
Creators: name: (:Unkn) Unknown
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1800
Subjects: subject: 090

description: Gedanken zu "Leidenschaft" bei Luther, zu "Fehler" bei Kleist, zur Monadologie bei Leibnitz und Rousseau sowie zu Neros Lastern
Ly$α$ Leaks and Reionization
Creators: name: Feng, Long-Long
name: Bi, Hong-Guang
name: Liu, Ji-Ren
name: Fang, Li-Zhi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Ly$α$ absorption spectra of QSOs at redshifts $z\simeq6$ show complete Gunn-Peterson absorption troughs (dark gaps) separated by tiny leaks. The dark gaps are from the intergalactic medium (IGM) where the density of neutral hydrogen are high enough to produce almost saturated absorptions, however, where the transmitted leaks come from is still unclear so far. We demonstrate that leaking can originate from the lowest density voids in the IGM as well as the ionized patches around ionizing sources using semi-analytical simulations. If leaks were produced in lowest density voids, the IGM might already be highly ionized, and the ionizing background should be almost uniform; in contrast, if leaks come from ionized patches, the neutral fraction of IGM would be still high, and the ionizing background is significantly inhomogeneous. Therefore, the origin of leaking is crucial to determining the epoch of inhomogeneous-to-uniform transition of the the ionizing photon background. We show that the origin could be studied with the statistical features of leaks. Actually, Ly$α$ leaks can be well defined and described by the equivalent width $W$ and the full width of half area $W_{\rm H}$, both of which are less contaminated by instrumental resolution and noise. It is found that the distribution of $W$ and $W_{\rm H}$ of Ly$α$ leaks are sensitive to the modeling of the ionizing background. We consider four representative reionization models. It is concluded that the leak statistics provides an effective tool to probe the evolutionary history of reionization at $z\simeq5-6.5$. Similar statistics would also be applicable to the reionization of He II at $z \simeq 3$(Abridged)
description: 11 pages including 10 figures, accepted for publication in MNRAS
How does the Co-existence of Humour and Violence in Contemporary Visual Art indicate the Presence of Attributes of Janus?
Creators: name: Baquie, Susan
Publisher: name: Griffith University
Year: 2013
Subjects: Janus (God of war)
Dualism in art
Humour and violence in art

description: The ancient Roman god Janus was a god of war, of the sky, and of time. The persistence of his double-faced (sometimes described as double-headed) image, and the accompanying religion and myth, validate a human need for the expression of dualism. This expression of dualism as Janus bifrons is evidenced in functional sculptures and other art works from antiquity until now, and this exegesis explores its ancient religious beginnings through to its secular manifestations. Further, the research undertaken within the studio practice and theory presented here aims to identify attributes of the ancient Janus within contemporary art where forms of humour and violence co-exist. The research posits the possibility of acknowledging dualisms as Janus or Janusian, the representation of humour as a balance to violence in contemporary art. The exegesis explores and illustrates the studio processes in relation to personal and socio-political experiences, among the resultant works of art the representational and abstract collages, which clearly show the co-existence of humour and violence in an elucidation of creative processes relating to the Janusian. The Janus attributes of time past and future, and of war, are here more obvious than those attributes of the cosmos, the templum, boundaries, and other earthly attributes, such as agriculture. In representation of death we acknowledge life, in representation of life we acknowledge death; this is Janus as god of inception and closure represented in both humour and in violence in contemporary art.
Ricordando Marcella
Creators: name: Sindoni, Caterina
Publisher: name: Gli Argonauti. Rivista di Studi Storico-Educativi e Pedagogici
Year: 2025
Subjects: Marcella Bacigalupi

description: Gli Argonauti. Rivista di Studi Storico-Educativi e Pedagogici, V. 5, N. 1 (2025)
Brief von Verlagsbuchhandlung F.A. Brockhaus (Leipzig) an Leopold Zunz, 15.07.1835
Creators: name: (:Unkn) Unknown
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1835
Subjects: subject: 090

description: Quittungen für Enzyklopädieartikel im Brockhaus Conversations-Lexikon, 9. Auflage
Can Cosmology Provide a Test of Quantum Mechanics?
Creators: name: Georg, Julian
name: Rosenzweig, Carl
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Inflation predicts that quantum fluctuations determine the large scale structure of the Universe. This raises the striking possibility that quantum mechanics, developed to describe nature at short distances, can be tested by studying nature at its most immense -- cosmology. We illustrate the potential of such a test by adapting the simplest form of the inflationary paradigm. A nonlinear generalization of quantum mechanics modifies predictions for the cosmological power spectrum. If we assume that the nonlinear parameter $b$ is a comoving quantity observational cosmology, within the context of single field inflation, is sufficiently precise to place a stringent limit, $b\leq 3\times 10^{-37}$ eV, on the current, physical size of the nonlinear term.
Structural and functional neuroplasticity in human learning of spatial routes
Creators: name: Keller, Timothy
name: Just, Marcel
Publisher: name: Carnegie Mellon University
Year: 2016
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Recent findings with both animals and humans suggest that decreases in microscopic movements of water in the hippocampus reflect short-term neuroplasticity resulting from learning. Here we examine whether such neuroplastic structural changes concurrently alter the functional connectivity between hippocampus and other regions involved in learning. We collected both diffusion-weighted images and fMRI data before and after humans performed a 45 min spatial route-learning task. Relative to a control group with equal practice time, there was decreased diffusivity in the posterior-dorsal dentate gyrus of the left hippocampus in the routelearning group accompanied by increased synchronization of fMRI-measured BOLD signal between this region and cortical areas, and by changes in behavioral performance. These concurrent changes characterize the multidimensionality of neuroplasticity as it enables human spatial learning.
Impacts of prescribed burning on aquatic communities: exploring the link between terrestrial management and aquatic ecosystems
Creators: name: Wozniak, Matthew
Publisher: name: No Publisher Supplied
Year: 2024

description: Prescribed fire is a management tool in which human-controlled fires are purposefully ignited to prevent larger wildfires. Along with reducing the likelihood of unmanageable wildfires, prescribed fire can also alter the physical structure of forests, composition, and diversity. As wildfires become more intense and frequent due to global climate change, prescribed fire is increasingly sought as a land management tool. The impacts of prescribed fires on the terrestrial forest community are well-studied, but research on how fires could impact terrestrially-linked aquatic systems is lacking. Here we show that recent prescribed burning exerted differing effects on aquatic communities depending on the tree composition of the surrounding forest. We found an increase in aquatic invertebrate abundance and diversity along a gradient of Pinus species to Quercus species. Within Quercus dominated plots prescribed burning increased insect abundance, while within Pinus dominated plots abundance was reduced. Decomposition rates were also found to increase along a gradient of Pinus species to Quercus species. These effects were found to occur at different spatial scales. Invertebrate abundance of linked aquatic ecosystems responded to Quercus abundance at the forest plot-scale, which is likely due to anincrease in natural water-holding cavities created by differential tree compartmentalization interacting with damage from fire and invasive defoliating insects. Decomposition rates in aquatic ecosystems increased under individual Quercus trees, possibly due to differences in the microbial communities associated with specific tree species. Our results demonstrate how fire and other disturbances may impact the structure of aquatic communities and increase the abundance of insect populations in terrestrially-linked aquatic ecosystems and their functioning by modifying forest cavity availability. Our findings highlight that observations at different spatial scales may be needed to disentangle the effects of prescribed burns on terrestrially-linked aquatic ecosystems. The results of this work will likely be useful to land managers who desire to consider the broad ecological impacts of fire into their decision making.
The data curation reading club as competence and trust builder
Creators: name: Kuusniemi, Mari Elisa
name: Moisio, Marja
Publisher: name: Zenodo
Year: 2024
Subjects: Trust and transparency in people
Trust in skills acquisition
Reading club
skill development
building trust

description: We will tell you how we established a reading club to increase competence on data curation and build team spirit in a case where we got three new employees at once.
Stress-Induced Immunomodulation: Implications for Infectious Diseases?
Creators: name: Glaser, Ronald
name: Rabin, Bruce
name: Chesney, Margaret
name: Cohen, Sheldon
name: Natelson, Benjamin
Publisher: name: Carnegie Mellon University
Year: 1999
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: There is now significant literature showing that psychological stress can down-regulate various aspects of the cellular immune response. It is also established that communication between the central nervous system and the immune system occurs through bidirectional signals linking the nervous, endocrine, and immune systems. Psychological stressors affect the immune system by disrupting these networks. In this overview, we discuss the implications of psychological stress-associated immune modulation and risk for infectious disease.
Die Entwicklung einer Forschungsdatenstrategie für eine kleine Hochschule im Verbund FDM-BB am Beispiel der HNEE
Creators: name: Wolff, Ian
name: Spiecker, Claus
Publisher: name: Zenodo
Year: 2024
Subjects: research data strategy
data stewardship
research data management

description: Teil der Institutionalisierung des Forschungsdatenmanagements (FDM) an einer Hochschule ist das Planen eines strategischen Vorgehens entlang der eigenen Ziele, Visionen und Möglichkeiten. Letztere können abhängig von der Größe einer Einrichtung variieren. Als kleine Hochschule mit weniger als 3.000 Studierenden und Mitarbeitenden begegnet die Hochschule für nachhaltige Entwicklung der Herausforderung FDM im Verbund der Landesinitiative FDM-BB und baut mit einem Data Steward an der Einrichtung ein institutionalisiertes FDM auf. Dabei wurde durch den Data Steward eine befristete Forschungsdatenstrategie [1] entlang des RISE-DE Referenzmodells erarbeitet. Der Strategieprozess nahm seinen Anfang mit der Festlegung eines Arbeitsablaufs mit Meilensteinen und Arbeitsschritten. Nach RISE-DE umfasst der Strategieprozess als wichtiges Element Absprachen mit für das FDM relevanten Stakeholdern. Für diese Absprachen ist unter der Leitung des Data Stewards eine Arbeitsgruppe Forschungsdatenmanagement (AG-FDM) an der HNEE gegründet worden. In der AG erfolgten HNEE-interne Absprachen und Festlegungen entlang des RISE-DE Modells. Aufgrund der Landesinitiative profitiert die HNEE neben ihrem Data Steward auch von Verbundleistungen, die sich in anderen Formen des Data Stewardships zeigen und mit denen ebenfalls Absprachen zur HNEE-Strategie getätigt wurden. Letztendlich ergibt sich unter der Hinzugabe der Kategorien Data Governance, Data Strategy und Data Stewardship für verschiedene Themenfelder von RISE-DE ein klares Bild. Eine kleine Hochschule kann durch einen eigenen Data Steward sowie die gezielte Zusammenarbeit hinsichtlich einzelner technischer Diensten im Verbund potenziell qualitativ hochwertige FDM-Dienstleistungen anbieten und je nach Ausrichtung des Verbunds alle Themenfelder von RISE-DE abdecken.

[1] Wolff, I. (2023). Hochschule für nachhaltige Entwicklung. Forschungsdatenstrategie 2023-2025. https://doi.org/10.57741/opus4-677
Bose-Einstein condensates of atoms with arbitrary spin
Creators: name: Van Isacker, P.
name: Heinze, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We show that the ground state of a Bose-Einstein condensate of atoms with hyperfine spin f = 2 can be either spin aligned, condensed into pairs of atoms coupled to F = 0, or condensed into triplets of atoms coupled to F = 0. The complete phase diagram is constructed for f = 2 and the generic properties of the phase diagram are obtained for f > 2.
description: Journal of Physics A, in press
Nano-machining, surface analysis and emittance measurements of a copper photocathode at SPARC_LAB
Creators: name: Scifo, J.
name: Alesini, D.
name: Anania, M. P.
name: Bellaveglia, M.
name: Bellucci, S.
name: Biagioni, A.
name: Bisesto, F.
name: Cardelli, F.
name: Chiadroni, E.
name: Cianchi, A.
name: Costa, G.
name: Di Giovenale, D.
name: Di Pirro, G.
name: Di Raddo, R.
name: Dowell, D. H.
name: Ferrario, M.
name: Giribono, A.
name: Lorusso, A.
name: Micciulla, F.
name: Mostacci, A.
name: Passeri, D.
name: Perrone, A.
name: Piersanti, L.
name: Pompili, R.
name: Shpakov, V.
name: Stella, A.
name: Trovò, M.
name: Villa, F.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: R\&D activity on Cu photocathodes is under development at the SPARC\_LAB test facility to fully characterize each stage of the photocathode "life" and to have a complete overview of the photoemission properties in high brightness photo-injectors. The nano(n)-machining process presented here consists in diamond milling, and blowing with dry nitrogen. This procedure reduces the roughness of the cathode surface and prevents surface contamination introduced by other techniques, such as polishing with diamond paste or the machining with oil. Both high roughness and surface contamination cause an increase of intrinsic emittance and consequently a reduction of the overall electron beam brightness. To quantify these effects, we have characterized the photocathode surface in terms of roughness measurement, and morphology and chemical composition analysis by means of Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), and Atomic Force Microscopy (AFM) techniques. The effects of n-machining on the electron beam quality have been also investigated through emittance measurements before and after the surface processing technique. Finally, we present preliminary emittance studies of yttrium thin film on Cu photocathodes.
Smoothed log-concave maximum likelihood estimation with applications
Creators: name: Chen, Yining
name: Samworth, Richard J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistics Theory (math.ST)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 62G07, 62E17, 62P10

description: We study the smoothed log-concave maximum likelihood estimator of a probability distribution on $\mathbb{R}^d$. This is a fully automatic nonparametric density estimator, obtained as a canonical smoothing of the log-concave maximum likelihood estimator. We demonstrate its attractive features both through an analysis of its theoretical properties and a simulation study. Moreover, we use our methodology to develop a new test of log-concavity, and show how the estimator can be used as an intermediate stage of more involved procedures, such as constructing a classifier or estimating a functional of the density. Here again, the use of these procedures can be justified both on theoretical grounds and through its finite sample performance, and we illustrate its use in a breast cancer diagnosis (classification) problem.
description: 29 pages, 3 figures
The Effects of Charged Charm Mesons on the Line Shapes of the X(3872)
Creators: name: Braaten, Eric
name: Lu, Meng
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The quantum numbers J^PC = 1++ of the X(3872) and the proximity of its mass to the D*0 anti-D0 threshold imply that it is either a loosely-bound hadronic molecule whose constituents are a superposition of D*0 anti-D0 and D0 anti-D*0 or it is a virtual state of charm mesons. The line shapes of the X(3872) can discriminate between these two possibilities. At energies within a few MeV of the D*0 anti-D0 threshold, the lines shapes of the X produced in B -> K transitions are determined by its binding energy and its width. Their normalizations are determined by a short-distance constant that is different for B+ -> K+ and B0 -> K0. At energies comparable to the 8 MeV splitting between the D*0 anti-D0 and D*+ D- thresholds, the charged meson channels D*+ D- and D+ D*- have a significant effect on the line shapes of the X. We calculate the line shapes taking into account the resonant coupling between the charged and neutral 1++ channels. The line shapes and their normalizations depend on one additional scattering parameter and two additional short-distance constants associated with the B -> K transitions. The line shapes of the X resonance depend on its decay channel; they are different for J/psi pi+ pi-, J/psi pi+ pi- pi0, and D0 anti-D0 pi0. The line shapes are also different for X produced in B+ decays and in B0 decays. Some conceptual errors in previous work on this problem are pointed out.
description: 30 pages, 7 figures
Ein Konzept zur Korrektur inkonsistenter Wissensbasen und die Umsetzung in Answer Set Programming
Creators: name: Stolzmann, Tobias
Publisher: name: Zenodo
Year: 2018

description: Diese Bachelorarbeit beschreibt ein Verfahren zur Korrektur inkonsistenter Wissensbasen. Es löst Widersprüche durch möglichst wenige Änderungen auf und wird für abstrakte Logiken auf Basis eines Konsequenzoperators eingeführt. Elementare Eigenschaften, wie die Existenz einer Korrektur oder die Unveränderlichkeit einer konsistenten Wissensbasis bei der Korrektur, werden theoretisch bewiesen. Da eine Korrektur unter Umständen unvollständig ist, wird erklärt, wie sie sich konsistent vervollständigen lässt. Da sie im Allgemeinen nicht eindeutig ist, wird die Auswahl einer Korrektur auf Basis zusätzlicher Informationen erklärt. Diese Arbeit beschreibt die Umsetzung des Verfahrens in Answer Set Programming. Es werden zwei Beispiele besprochen: Die Buchwelt modelliert ein Szenario aus der Robotik. Die Korrektur inkonsistenter Sudokus demonstriert die Leistungsfähigkeit des Verfahrens.
Holographic Entanglement Entropy at Finite Temperature
Creators: name: Bah, Ibrahima
name: Faraggi, Alberto
name: Zayas, Leopoldo A. Pando
name: Terrero-Escalante, Cesar A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using a holographic proposal for the entanglement entropy we study its behavior in various supergravity backgrounds. We are particularly interested in the possibility of using the entanglement entropy as way to detect transitions induced by the presence horizons. We consider several geometries with horizons: the black hole in $AdS_3$, nonextremal Dp-branes, dyonic black holes asymptotically to $AdS_4$ and also Schwarzschild black holes in global $AdS_p$ coordinates. Generically, we find that the entanglement entropy does not exhibit a transition, that is, one of the two possible configurations always dominates.
description: v3: 31 pp, ten figures, modified to match version accepted by IJMPA