cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Combining measures of immune infiltration shows additive effect on survival prediction in high-grade serous ovarian carcinoma
Creators: name: Montfort, Anne
name: Owen, Stephanie
name: Piskorz, Anna M.
name: Supernat, Anna
name: Moore, Luiza
name: Al-Khalidi, Sarwah
name: Böhm, Steffen
name: Pharoah, Paul
name: McDermott, Jacqueline
name: Balkwill, Frances R.
name: Brenton, James D.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Article
/692/4028/67/1517/1709
/631/250/2503
article

description: Abstract: Background: In colorectal and breast cancer, the density and localisation of immune infiltrates provides strong prognostic information. We asked whether similar automated quantitation and combined analysis of immune infiltrates could refine prognostic information in high-grade serous ovarian carcinoma (HGSOC) and tested associations between patterns of immune response and genomic driver alterations. Methods: Epithelium and stroma were semi-automatically segmented and the infiltration of CD45RO+, CD8+ and CD68+ cells was automatically quantified from images of 332 HGSOC patient tissue microarray cores. Results: Epithelial CD8 [p = 0.027, hazard ratio (HR) = 0.83], stromal CD68 (p = 3 × 10−4, HR = 0.44) and stromal CD45RO (p = 7 × 10−4, HR = 0.76) were positively associated with survival and remained so when averaged across the tumour and stromal compartments. Using principal component analysis, we identified optimised multiparameter survival models combining information from all immune markers (p = 0.016, HR = 0.88). There was no significant association between PTEN expression, type of TP53 mutation or presence of BRCA1/BRCA2 mutations and immune infiltrate densities or principal components. Conclusions: Combining measures of immune infiltration provided improved survival modelling and evidence for the multiple effects of different immune factors on survival. The presence of stromal CD68+ and CD45RO+ populations was associated with survival, underscoring the benefits evaluating stromal immune populations may bring for prognostic immunoscores in HGSOC.
KO'MILGAN TOK UYUMINI OCHISHDA QO'LLANILADIGAN ROTATSION ISH ORGANNING AYRIM KONSTRUKTIV PARAMETRLARINI ASOSLASH
Creators: name: Ermatov, Valijon
Publisher: name: Zenodo
Year: 2024

description: Maqolada ko‘milgan  tok tuplarini ochishda qo‘llaniladigan rotatsion ish organning  kinemetik ish rejimi va kinemetik ish rejimi ish roganning ayrim kostruktiv parametrlari bilan o‘zaro bog‘liqligi nazariy tadqiqotlar asosida izohlangan.
title: Moral Luck in Medical Ethics and Practical Politics
Creators: name: Dickenson, Donna
Publisher: name: The Open University
Year: 1989

description: Typically we maintain two incompatible standards towards right action and good character, and the tension between these polarities creates the paradox of moral luck. In practice we regard actions as right or wrong, and character as good or bad, partly according to what happens as a result of the agent's decision. Yet we also think that people should not be held responsible for matters beyond their control. This split underpins Kant's assertion that only the good will is securely good, that its goodness is impervious to outcome ill-luck. Some commentators, such as Martha Nussbaum and to some extent Bernard Williams, think that this simply writes off the paradox. Williams asserts that the paradox is insoluble, and that its inescapability threatens the notion of agent responsibility. In contrast Thomas Nagel argues that agents' most cherished projects may be indeed be subject to luck, but that does not mean that their deepest motivations are moral. This, I suggest, is one of several means whereby we might limit the effect of the paradox without denying that the tension exists. But I also argue that it is wrong to accuse Kant of ignoring the paradox. Ethical consequentialists, on the other hand, appear to have no problem with moral luck, because the paradox depends on a dichotomy between the outside world and the locus of moral worth in the individual agent. But this turns out not to be true. The problem of moral luck is not some strange Kantian fixation, but a general dilemma: a variant on what Nagel terms "the problem of excess objectivity" which cuts across all of ethics and metaphysics. Retaining a broadly Kantian notion of agent-responsibility, but limiting what agents are responsible for, requires us to delineate the realm of ethics more narrowly than has been done by those who believe that the rational and/or prudential are coterminous with the ethical. This strategy for minimising the paradox's impact is explored in two areas from medical ethics, the allocation of scarce medical resources and informed consent, and two from public policy, secrecy and nuclear deterrence. Throughout, the analysis seeks to test Nagel's maxim that the best we can hope for is to act in such a manner that we would not have to revise our opinion of how we should have acted once the consequences of our actions become apparent.
Light quark Yukawas in triboson final states
Creators: name: Falkowski, Adam
name: Ganguly, Sanmay
name: Gras, Phillippe
name: No, Jose Miguel
name: Tobioka, Kohsaku
name: Vignaroli, Natascia
name: You, Tevong
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Regular Article - Theoretical Physics
Higgs Physics
Quark Masses and SM Parameters

description: Abstract: Triple heavy vector boson production, pp → VVV (V = W, Z), has recently been observed for the first time. We propose that precision measurements of this process provide an excellent probe of the first generation light quark Yukawa couplings. Modified quark interactions with the off-shell Higgs in this process lead to a rapid growth of the partonic cross sections with energy, which manifests in an enhanced pT distribution of the final state leptons and quarks. We quantify this effect and estimate the present and future 2σ sensitivity to the up, down, and strange Yukawas. In particular, we find that HL-LHC can reach O400 sensitivity to the down Yukawa relative to the Standard Model value, improving the current sensitivity in this process by a factor of 10, and which can be further improved to O30 at FCC-hh. This is competitive with and complementary to constraints from global fits and other on-shell probes of the first generation Yukawas. The triboson sensitivity at HL-LHC corresponds to probing dimension-6 SMEFT operators suppressed by an O1 TeV scale, similarly to other LHC Higgs probes.
Projecto de Tabela de Avaliação e Selecção das “Funções-Meio”
Creators: name: Fidalgo, Maria José Vaz
name: Ucha, Paula Cristina
Publisher: name: Cadernos BAD
Year: 2006

description: O artigo que agora se apresenta pretende demonstrar as funcionalidades do projecto de Tabela das Funções-Meio, associada às funções documentais de suporte às actividades, bem como, a sua utilização como instrumento normalizador e orientador de boas práticas aplicável aos organismos da AP.
description: Cadernos BAD, N.º 2 (2006): Arquivos da Administração Pública: Estratégias, Políticas e Desafios
Ailuroedus melanotus
Creators: name: Lecroy, Mary
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Ptilonorhynchidae
Ailuroedus
Ailuroedus melanotus

description: Ailuroedus melanotus [sic] fairfaxi Mathews
Ailuroedus melanotus [sic] fairfaxi Mathews, 1915a: 132 (Bellenden Ker, Queensland).
Now Ailuroedus melanotis maculosus Ramsay, 1874. See Mathews, 1926: 318–320; Hartert, 1929a: 55; Mathews, 1930: 892–893; Mayr and Jennings, 1952: 3; Mayr, 1962c: 174; Gilliard, 1969: 266–273; Schodde and Mason, 1999: 622– 624; Dickinson, 2003: 427; Frith and Frith, 2004: 235–238; Christidis and Boles, 2008: 179– 180; and Frith and Frith, 2009a: 393–394.
LECTOTYPE: AMNH 679659, adult male, collected on Bellenden Ker, 17.16S, 145.51E (USBGN, 1957), Queensland, Australia, on 16 November 1899, by E. Olive (no. R588). From the Mathews Collection (no. 18162) via the Rothschild Collection.
COMMENTS: When Mathews described this form, he noted only that the type was from Bellenden Ker. Mathews had nine specimens from Bellenden Ker, cataloged as numbers 18157–18165. AMNH 679659 bears, in addition to Olive’s label, Mathews and Rothschild type labels with the number 18162 written on them but not cited in the original description. Hartert (1929a: 55) listed the unique specimen collected on 16 November 1899 as the type, thereby designating it the lectotype. The eight paralectotypes are AMNH 679660, 679661, 679663–679668, five males, three females, collected by Olive on Bellenden Ker between 22 November 1899 and 19 February 1900. Each bears Olive’s unique field number, and the number ‘‘1550’’ that appears on each label may be a lot number of the skins purchased by Mathews. Both Mathews and Rothschild purchased parts of the Olive collection, and AMNH 679662 is a Rothschild specimen from Bellenden Ker that was never in the Mathews Collection; it does not include the number ‘‘1550’’ on its Olive label.
Robinson and Laverock (1900) published on Olive’s collection, and on pages 623–624 reported that Olive collected many specimens of maculosus. By 1930, Mathews (1930: 892– 893) himself considered fairfaxi a synonym of maculosus. See the discussion regarding species limits under A. crassirostris, above.
description: Published as part of Lecroy, Mary, 2014, Type Specimens Of Birds In The American Museum Of Natural History Part 12. Passeriformes: Ploceidae, Sturnidae, Buphagidae, Oriolidae, Dicruridae, Callaeidae, Grallinidae, Corcoracidae, Artamidae, Cracticidae, Ptilonorhynchidae, Cnemophilidae, Paradisaeidae, And Corvidae, pp. 1-165 in Bulletin of the American Museum of Natural History 2014 (393) on page 80, DOI: 10.1206/885.1, http://zenodo.org/record/4629954
Integration of proteomics with CT-based qualitative and radiomic features in high-grade serous ovarian cancer patients: an exploratory analysis
Creators: name: Beer, Lucian
name: Sahin, Hilal
name: Bateman, Nicholas W.
name: Blazic, Ivana
name: Vargas, Hebert Alberto
name: Veeraraghavan, Harini
name: Kirby, Justin
name: Fevrier-Sullivan, Brenda
name: Freymann, John B.
name: Jaffe, C. Carl
name: Brenton, James
name: Miccó, Maura
name: Nougaret, Stephanie
name: Darcy, Kathleen M.
name: Maxwell, G. Larry
name: Conrads, Thomas P.
name: Huang, Erich
name: Sala, Evis
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Urogenital
Ovarian neoplasms
Radiomics
Proteomics
Gene expression profiling
Prognosis

description: Abstract: Objectives: To investigate the association between CT imaging traits and texture metrics with proteomic data in patients with high-grade serous ovarian cancer (HGSOC). Methods: This retrospective, hypothesis-generating study included 20 patients with HGSOC prior to primary cytoreductive surgery. Two readers independently assessed the contrast-enhanced computed tomography (CT) images and extracted 33 imaging traits, with a third reader adjudicating in the event of a disagreement. In addition, all sites of suspected HGSOC were manually segmented texture features which were computed from each tumor site. Three texture features that represented intra- and inter-site tumor heterogeneity were used for analysis. An integrated analysis of transcriptomic and proteomic data identified proteins with conserved expression between primary tumor sites and metastasis. Correlations between protein abundance and various CT imaging traits and texture features were assessed using the Kendall tau rank correlation coefficient and the Mann-Whitney U test, whereas the area under the receiver operating characteristic curve (AUC) was reported as a metric of the strength and the direction of the association. P values < 0.05 were considered significant. Results: Four proteins were associated with CT-based imaging traits, with the strongest correlation observed between the CRIP2 protein and disease in the mesentery (p < 0.001, AUC = 0.05). The abundance of three proteins was associated with texture features that represented intra-and inter-site tumor heterogeneity, with the strongest negative correlation between the CKB protein and cluster dissimilarity (p = 0.047, τ = 0.326). Conclusion: This study provides the first insights into the potential associations between standard-of-care CT imaging traits and texture measures of intra- and inter-site heterogeneity, and the abundance of several proteins. Key Points: • CT-based texture features of intra- and inter-site tumor heterogeneity correlate with the abundance of several proteins in patients with HGSOC. • CT imaging traits correlate with protein abundance in patients with HGSOC.
Life and times of Arthur Goodall Wavell
Creators: name: Amsler, Robert Witt, 1915-
Publisher: name: The University of Texas at Austin
Year: 1950
Subjects: subject: Arthur Goodall Wavell
subject: Soldiers
subject: Texas
subject: Biography
subject: History
subject: 19th century
subject: Generals
subject: Wavell, Arthur G. (Arthur Goodall), 1785-1860
subject: Soldiers--Texas--History--19th century--Biography
subject: Generals--Texas--History--19th century--Biography

description: Many books and articles written about the history of Texas carry some mention of Arthur Goodall Wavell, but all of the accounts seem to do little more than give his name and nationality, and note that he gave assistance to Stephen F. Austin. Since there was so little known about this man who had helped Austin obtain his grant and had befriended other Americans working for and in Texas, I have tried to get as much material as exists on General Wavell. It is unfortunate that more information is not available. It at first appeared that there would be more than was finally obtained, as there were several collections which would probably contain letters and papers pertaining to the General. There proved to be much duplication, however, and there are some periods of his life about which no material can be located. Thus numerous gaps appear in this account of his career
Price Premia for Sustainability Characteristics in Foods: Measurement Matters!
Creators: name: Herrmann, Roland
name: Bissinger, Katharina
name: Krandick, Lisa
name: Herrmann, Roland
name: Bissinger, Katharina
name: Krandick, Lisa
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Fairtrade, hedonic price analysis, regional origin, organic production

description: There is a growing demand for foods with sustainability characteristics on Northern markets. Despite this trend, foods with sustainability characteristics, like organic farming, regional production and fairtrade certification, do still cover small market segments compared to the conventional market. The incentive for producers to switch from the mass to the niche market is the potential price premium associated with sustainability characteristics. In order to measure these premia, very different approaches are applied. We argue that supply-and-demand models incorporating the influence of sustainability characteristics on preferences and marginal costs are superior to willingness-to-pay studies focusing on hypothetical decisions by consumers alone. We apply hedonic price analysis to the German online market for honey. The differentiated market for honey allows to compare price premia across different sustainability characteristics. Price premia compared to the benchmark of a standard honey, are positive for regionality and negative for fairtrade.
Measuring GHG Emissions Across the Agri-Food Sector Value Chain: The Development of BIO - a Bio-economy Input- Output Model
Creators: name: O’Donoghue, Cathal
name: Chyzheuskaya, Aksana
name: Grealis, Eoin
name: Finnegan, William
name: Goggin, Jamie
name: Hynes, Stephen
name: Kilcline, Kevin
name: Ryan, Mary
name: O’Donoghue, Cathal
name: Chyzheuskaya, Aksana
name: Grealis, Eoin
name: Finnegan, William
name: Goggin, Jamie
name: Hynes, Stephen
name: Kilcline, Kevin
name: Ryan, Mary
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Bio-economic Input-Output; LCA, Agri-Food Value Chain; Disaggregation methodology

description: Sustainable intensification is one of the greatest challenges facing the agri-food sector which needs to produce more food to meet increasing global demand, while minimising negative environmental impacts such as agricultural greenhouse gas (GHG) emissions. Sustainable intensification relates not just to primary production, but also has wider value chain implications. An input-output model is a modelling framework which contains the flows across a value chain within a country. Input-output (IO) models have been disaggregated to have finer granular detail in relation to agricultural sub-sectoral value chains. National IO models with limited agricultural disaggregation have been developed to look at carbon footprints and within agriculture to look at the carbon footprint of specific value chains. In this paper we adapt an agriculturally disaggregated IO model to analyse the source of emissions in different components of agri-food value chains. We focus on Ireland, where emissions from agriculture comprise nearly 30% of national emissions and where there has been a major expansion and transformation in agriculture since the abolition of milk quota restrictions. In a substantial Annex to this paper, we describe the modelling assumptions made in developing this model. Breaking up the value chain into components, we find that most value is generated at the processing stage of the value chain, with greater processing value in more sophisticated value chains such as dairy processing. On the other hand, emissions are in general highest in primary production, albeit emissions from purchased animal feed being higher for poultry than for other value chains, given the lower direct emissions from poultry than from ruminants or sheep. The analysis highlights that emissions per unit of output are much higher for beef and sheep meat value chains than for pig and poultry meat value chains.
Optical and X-ray observations of the neutron star soft X-ray transient XTE J1709-267
Creators: name: Jonker, P. G.
name: Galloway, D. K.
name: McClintock, J. E.
name: Buxton, M.
name: Garcia, M.
name: Murray, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the discovery of the optical counterpart to the neutron star soft X-ray transient (SXT) XTE J1709-267 in outburst and quiescence. We further report the detection of type I bursts in RXTE data obtained during an outburst of the source in 2002. These bursts show a precursor event before the onset of the main burst event, reminiscent of photospheric radius expansion bursts. Sifting through the archival RXTE data for the burster 4U 1636-53 we found a nearly identical burst with precursor in 4U 1636-53. A comparison of this burst to true photospheric radius expansion bursts in 4U 1636-53 leads us to conclude that these bursts-with-precursor do not reach the Eddington limit. We further report on the analysis of a 22.4 ksec observation of XTE J1709-267 obtained with the Chandra satellite when the source was in quiescence. We found that the source has a soft quiescent spectrum which can be fit well by an absorbed black body or neutron star atmosphere model. A power law contributes less than 10 per cent to the 0.5-10 keV unabsorbed flux of (1.0+-0.3)x10^-13 erg cm^-2 s^-1. This flux is the same within the errors as the flux measured right after the outburst in 2002, indicating that the quiescent flux was reached within a few weeks after the outburst. Finally, we compared the power-law fractional contribution to the unabsorbed 0.5-10 keV luminosity for neutron star SXTs in quiescence for which the distance is well-known. We find that the power-law contribution is low only when the source quiescent luminosity is close to \~1-2x10^33 erg s^-1. Both at higher and lower values the power-law contribution to the 0.5-10 keV luminosity increases. We discuss how models for the quiescent X-ray emission can explain these trends.(Abridged)
description: 10 pages, 5 Figures, 1 color Fig, accepted for publication by MNRAS, added Globular Cluster sources to Figure 5
title: Landsat studies of the central Andes
Creators: name: Randle, Jane de Grey
Publisher: name: The Open University
Year: 1989

description: An area of the Central Andes where major features such as the crustal thickness, subduction angle and tectonic regime vary is the subject of this large scale remote sensing survey. 514 volcanoes were classified into 25 groups using a relative dating method and simple size analysis from ten Landsat multispectral scanner (MSS) images. Models of magma generation (Marsh 1975,1982), segmented subduction (Swift and Carr 1974, Carr et al. 1982), development of silicic magma chambers (Hildreth 1981), are all relevant to the volcanism of the region and the data, derived from study of volcanic density, spacing and alignment, presented herein are used to evaluate the models and to investigate the relation between the tectonic fabric and volcanism. The major segment boundary at 24°30'S (Swift and Carr 1974) divides the survey area. In the north, the Altiplano forms an asymmetric basin (Coward 1986) with high cone density near the vertically-faulted volcanic front in the west, and lesser density associated with low-angle thrusted blocks in the east. In the south a more random regional distribution is seen with arcate patterns in the more rugged terrain of the narrower Argentine Puna. These two distinct distributions of volcanoes suggest that subduction angle controls the surface pattern of volcanism. In the north, using variation in size against volcanic density and alignment of volcanoes, several smaller segments are recognised; but since they do not coincide, the simple relationship of crustal thickness, regional elevation, gravity, size and alignment of volcanoes described by Carr et al (1982) for Central America is more complicated in the Central Andes. Relative dating against density studies proved less useful for plotting migration of volcanism within the province, but it demonstrates that the smaller younger volcanoes are secondary features often associated with silicic complexes.
Zero-frequency transport properties of one dimensional spin-1/2 systems
Creators: name: Heidrich-Meisner, F.
name: Honecker, A.
name: Cabra, D. C.
name: Brenig, W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We report a detailed analysis of the Drude weights for both thermal and spin transport in one dimensional spin-1/2 systems by means of exact diagonalization and analytic approaches at finite temperatures. Transport properties are studied first for the integrable XXZ model and second for various non-integrable systems such as the dimerized chain, the frustrated chain, and the spin ladder. We compare our results obtained by exact diagonalization and mean-field theory with the Bethe ansatz, bosonization and other numerical studies in the case of the anisotropic Heisenberg model both in the gapless and gapped regime. In particular, we find indications that the Drude weight for spin transport is finite in the thermodynamic limit for the isotropic chain. For the non-integrable models, a finite-size analysis of the numerical data for the Drude weights is presented covering the entire parameter space of the dimerized and frustrated chain. We also discuss which conclusions can be drawn from bosonization regarding the question whether the Drude weights are finite or not. One of our main results is that the Drude weights vanish in the thermodynamic limit for non-integrable models.
description: 19 pages REVTeX4 including 16 figures; addition of Erratum at the end of the manuscript, see also Phys. Rev. B 101, 099902(E) (2020)
Traversable Wormholes in $R+αR^n$ Gravity
Creators: name: Godani, Nisha
name: Samanta, Gauranga C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work, the study of traversable wormholes in $f(R)$ gravity with the function $f(R)=R+αR^n$, where $α$ and $n$ are arbitrary constants, is taken into account. The shape function $b(r)=\frac{r}{\exp(r-r_0)}$, proposed by Samanta et al. \cite{godani1}, is considered. The energy conditions with respect to both constant and variable redshift functions are discussed and the existence of wormhole solutions without presence of exotic matter is investigated.
description: 33 pages, 16 figures, accepted in EPJC
Agrokor Case: The Recent Past and The Uncertain Future of The Big Agribusiness Conglomerate In Croatia
Creators: name: Njavro, Mario
name: Juračak, Josip
name: Čop, Tajana
name: Njavro, Mario
name: Juračak, Josip
name: Čop, Tajana
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Agrokor; Croatian agribusiness; supply chain; financial analysis

description: The leading agribusiness group Agrokor is one of the biggest in Croatia today with respect to number of integrated companies, employees, and revenues. Its constant growth was based on acquisitions and mainly financed through borrowing. Although questions about Agrokor indebtedness were raised occasionally, the first time the problem was taken seriously was in 2017. Hence, the special national law was adopted according to which Extraordinary Administration and government commissioners were appointed with the role to maintain day-to-day activities, and conduct settlement procedure and restructuring. The objective of this paper is to determine the nature of unfocused growth of Agrokor and its consequences on the business results. For that purpose, financial analysis of main Agrokor member companies was performed. The results reveal decrement in revenues, and increment in costs for the period 2012-2016, which caused lowering of profitability and rise of indebtedness. Altman Z-score showed that all companies are one step to bankruptcy. Furthermore, the main idea is to determine supply chain models through which the company is embedded in the national agribusiness.
ByzRev 03.2021.014: Robert E. Bjork, Catastrophes and the Apocalyptic in the Middle Ages and Renaissance
Creators: name: Kraft, András
Publisher: name: The Byzantine Review
Year: 2021

description: Robert E. Bjork, Catastrophes and the Apocalyptic in the Middle Ages and Renaissance (Arizona Studies in the Middle Ages and the Renaissance 43). Turnhout: Brepols 2019. xii, 207 pp. – ISBN: 978-2-503-58297-9 (€ 70.00)
description: The Byzantine Review, Bd. 3 (2021)
Fault Detection and Monitoring using a Data-Driven Information-Based Strategy: Method, Theory, and Application
Creators: name: Ramírez, Camilo
name: Silva, Jorge F.
name: Tamssaouet, Ferhat
name: Rojas, Tomás
name: Orchard, Marcos E.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Signal Processing (eess.SP)
subject: Information Theory (cs.IT)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The ability to detect when a system undergoes an incipient fault is of paramount importance in preventing a critical failure. Classic methods for fault detection (including model-based and data-driven approaches) rely on thresholding error statistics or simple input-residual dependencies but face difficulties with non-linear or non-Gaussian systems. Behavioral methods (e.g., those relying on digital twins) address these difficulties but still face challenges when faulty data is scarce, decision guarantees are required, or working with already-deployed models is required. In this work, we propose an information-driven fault detection method based on a novel concept drift detector, addressing these challenges. The method is tailored to identifying drifts in input-output relationships of additive noise models (i.e., model drifts) and is based on a distribution-free mutual information (MI) estimator. Our scheme does not require prior faulty examples and can be applied distribution-free over a large class of system models. Our core contributions are twofold. First, we demonstrate the connection between fault detection, model drift detection, and testing independence between two random variables. Second, we prove several theoretical properties of the proposed MI-based fault detection scheme: (i) strong consistency, (ii) exponentially fast detection of the non-faulty case, and (iii) control of both significance levels and power of the test. To conclude, we validate our theory with synthetic data and the benchmark dataset N-CMAPSS of aircraft turbofan engines. These empirical results support the usefulness of our methodology in many practical and realistic settings, and the theoretical results show performance guarantees that other methods cannot offer.
description: 31 pages, 15 figures. This is the accepted manuscript for publication in Mechanical Systems and Signal Processing. The arXiv version has been updated accordingly
A nova arquitectura da Administração Central do Estado e a política pública de arquivos
Creators: name: Penteado, Pedro
Publisher: name: Cadernos BAD
Year: 2006

description: No artigo, o autor traça um quadro da nova arquitectura da Administração Central do Estado e define a mais recente orientação das políticas públicas para os arquivos deste sector, salientando o papel e a actuação do órgão de coordenação do sistema nacional de arquivos e das secretarias-gerais nesse contexto. Por fim, interroga-se sobre a eficácia das políticas públicas, destacando a necessidade de obter dados mais sistemáticos e apontando para as dificuldades na sua implementação.
description: Cadernos BAD, N.º 2 (2006): Arquivos da Administração Pública: Estratégias, Políticas e Desafios
ByzRev 03.2021.013: Stephen Mitchell – David French† (Hrsg.), The Greek and Latin Inscriptions of Ankara (Ancyra).
Creators: name: Rhoby, Andreas
Publisher: name: The Byzantine Review
Year: 2021

description: Stephen Mitchell – David French† (Hrsg.), The Greek and Latin Inscriptions of Ankara (Ancyra). Vol. II: Late Roman, Byzantine and Other Texts (Vestigia 72). München: C.H. Beck 2019. VIII + 347 S. – ISBN: 978-3-406-73234-8 (€ 108.00)
description: The Byzantine Review, Bd. 3 (2021)
Spin Fluctuations and the Magnetic Phase Diagram of ZrZn2
Creators: name: Mazin, I. I.
name: Singh, D. J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The magnetic properties of the weak itinerant ferromagnet ZrZn_2 are analyzed using Landau theory based on a comparison of density functional calculations and experimental data as a function of field and pressure. We find that the magnetic properties are strongly affected by the nearby quantum critical point, even at zero pressure; LDA calculations neglecting quantum critical spin fluctuations overestimate the magnetization by a factor of approximately three. Using renormalized Landau theory, we extract pressure dependence of the fluctuation amplitude. It appears that a simple scaling based on the fluctuation-dissipation theorem provides a good description of this pressure dependence.
description: 4 revtex pages
Dark Energy and Modified Scale Covariant Theory of Gravitation
Creators: name: Singh, Koijam Manihar
name: Mandal, Sanjay
name: Devi, Longjam Parbati
name: Sahoo, P. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Taking up four model universes we study the behaviour and contribution of dark energy to the accelerated expansion of the universe, in the modified scale covariant theory of gravitation. Here, it is seen that though this modified theory may be a cause of the accelerated expansion it cannot totally outcast the contribution of dark energy in causing the accelerated expansion. In one case the dark energy is found to be the sole cause of the accelerated expansion. The dark energy contained in these models come out to be of the $Λ$CDM type and quintessence type comparable to the modern observations. Some of the models originated with a big bang, the dark energy being prevalent inside the universe before the evolution of this era. One of the models predicts big rip singularity, though at a very distant future. It is interestingly found that the interaction between the dark energy and the other part of the universe containing different matters is enticed and enhanced by the gauge function $ϕ(t)$ here.
description: 12 pages, 12 figures, Accepted version in New Astronomy
Construindo a nova administração (reflexões de uma arquivista)
Creators: name: Henriques, Cecília
Publisher: name: Cadernos BAD
Year: 2006

description: São pilares da nova Administração Pública a transparência, a satisfação das necessidades dos cidadãos, a gestão por objectivos e a prestação de contas, a cidadania participativa. As leis promovem-nos, mas a matriz cultural, as práticas e as estruturas organizacionais contradizem-nos. Considera-se que os arquivos administrativos são elementos nucleares no processo de renovação dos serviços públicos e de promoção e defesa de uma cultura democrática. Reconhece-se, porém, que eles são ainda parte do problema e não parte da solução. Apresentam-se algumas reflexões para reconhecer fragilidades nos arquivos, identificar factores que escondem o seu potencial e definir estratégias de intervenção que permitam firmar a centralidade dos arquivos neste processo.
description: Cadernos BAD, N.º 2 (2006): Arquivos da Administração Pública: Estratégias, Políticas e Desafios
title: Ideology, education and social change in Latin America: a case study of Bolivia 1930-1953
Creators: name: Tattersall, Neil
Publisher: name: The Open University
Year: 1989

description: The thesis analyses the role of education in affecting the course of social change in Bolivia from 1930 to 1953. Initially, the thesis discusses the three main research strategies currently employed in historical sociology and argues that the subsequent analysis accords with the strategy favoured by the analytical historical sociologists. After a brief descriptive account of the geography and political economy of Bolivia, the thesis analyses the relationship between ideology and education, emphasising the fact that the concept of ideology plays a crucial role in clarifying the way in which education functions to reproduce the social relations of production. The thesis then sets out the apparent consensus view of the role of education in developing countries and shows how this view is justified by reference to the relationship between Latin American states as peripheral zones and their economic/political centres. Theories of underdevelopment are reviewed with particular reference to contemporary Third World countries, the thesis arguing that cognizance needs to be taken of these theories in order to fully understand the relationship between education and social change in Bolivia. Agrarian structures, together with the concepts of peasantry and peasant consciousness, are then discussed because recognition needs to be made of the actions of the actual people involved and, at that time, the majority of the Bolivians were peasants. The thesis then relates how, in the 1920s and 1930s in Bolivia, there existed the conditions which allowed the challenging of the status quo by various discontented factions and which created an environment responsive to the call for an education programme for the peasants. The growth of peasant consciousness is demonstrated and its impact on Bolivia is shown through the development of an indigenal education programme. The thesis concludes that in Bolivia between 1930 and 1953 there developed an education movement which was the focus of anti-government and subversive activity and which played a considerable part in the promulgation of a land reform law in 1953 which was instrumental in bringing about a major change in the social structure of Bolivian society.
Fast-moving stars around an intermediate-mass black hole in Omega Centauri
Creators: name: Häberle, Maximilian
name: Neumayer, Nadine
name: Seth, Anil
name: Bellini, Andrea
name: Libralato, Mattia
name: Baumgardt, Holger
name: Whitaker, Matthew
name: Dumont, Antoine
name: Cuello, Mayte Alfaro
name: Anderson, Jay
name: Clontz, Callie
name: Kacharov, Nikolay
name: Kamann, Sebastian
name: Feldmeier-Krause, Anja
name: Milone, Antonino
name: Nitschai, Maria Selina
name: Pechetti, Renuka
name: van de Ven, Glenn
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Black holes have been found over a wide range of masses, from stellar remnants with masses of 5-150 solar masses (Msun), to those found at the centers of galaxies with $M>10^5$ Msun. However, only a few debated candidate black holes exist between 150 and $10^5$ Msun. Determining the population of these intermediate-mass black holes is an important step towards understanding supermassive black hole formation in the early universe. Several studies have claimed the detection of a central black hole in $ω$ Centauri, the Milky Way's most massive globular cluster. However, these studies have been questioned due to the possible mass contribution of stellar mass black holes, their sensitivity to the cluster center, and the lack of fast-moving stars above the escape velocity. Here we report observations of seven fast-moving stars in the central 3 arcseconds (0.08 pc) of $ω$ Centauri. The velocities of the fast-moving stars are significantly higher than the expected central escape velocity of the star cluster, so their presence can only be explained by being bound to a massive black hole. From the velocities alone, we can infer a firm lower limit of the black hole mass of $\sim$8,200 Msun, making this a compelling candidate for an intermediate-mass black hole in the local universe.
description: 33 pages, 11 figures, and 2 tables. Published in Nature. This is the accepted author's version including the correction issued on Sep 17, 2024. The version of record is available from the Journal (open access)
Density Profiles of Cold Dark Matter Substructure: Implications for the Missing Satellites Problem
Creators: name: Kazantzidis, Stelios
name: Mayer, Lucio
name: Mastropietro, Chiara
name: Diemand, Juerg
name: Stadel, Joachim
name: Moore, Ben
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The structural evolution of substructure in cold dark matter (CDM) models is investigated combining ``low-resolution'' satellites from cosmological N-body simulations of parent halos with N=10^7 particles with high-resolution individual subhalos orbiting within a static host potential. We show that, as a result of mass loss, convergence in the central density profiles requires the initial satellites to be resolved with N=10^7 particles and parsec-scale force resolution. We find that the density profiles of substructure halos can be well fitted with a power-law central slope that is unmodified by tidal forces even after the tidal stripping of over 99% of the initial mass and an exponential cutoff in the outer parts. The solution to the missing-satellites problem advocated by Stoehr et al. in 2002 relied on the flattening of the dark matter (DM) halo central density cusps by gravitational tides, enabling the observed satellites to be embedded within DM halos with maximum circular velocities as large as 60 km/s. In contrast, our results suggest that tidal interactions do not provide the mechanism for associating the dwarf spheroidal satellites (dSphs) of the Milky Way with the most massive substructure halos expected in a CDM universe. We compare the predicted velocity dispersion profiles of Fornax and Draco to observations, assuming that they are embedded in CDM halos. Models with isotropic and tangentially anisotropic velocity distributions for the stellar component fit the data only if the surrounding DM halos have maximum circular velocities in the range 20-35 km/s. If the dSphs are embedded within halos this large then the overabundance of satellites within the concordance LCDM cosmological model is significantly alleviated, but this still does not provide the entire solution.
description: Accepted for publication in ApJ, 17 pages, 9 figures, LaTeX (uses emulateapj5.sty)
Switchbacks: Statistical Properties and deviations from Alfvénicity
Creators: name: Larosa, Andrea
Publisher: name: Zenodo
Year: 2021
Subjects: Switchbacks-Parker Solar Probe

description: Abstract: Parker Solar Probe’s first solar encounter has revealed the presence of sudden magnetic field deflections in the slow Alfvénic solar wind. These structures, which are often called switchbacks, are associated with proton velocity enhancements. We study their statistical properties with a special focus on their boundaries. Using data from SWEAP and FIELDS, we investigate particle and wavefield properties. The magnetic boundaries are analyzed with the minimum variance technique. Switchbacks are found to be Alfvénic in 73% of cases and compressible in 27%. The correlations between magnetic field magnitude and density fluctuations reveal the existence of both positive and negative correlations. Switchbacks do not lead to a magnetic shear in the ambient field. Their boundaries can be interpreted in terms of rotational or tangential discontinuities. The former are more frequent. Our findings provide constraints on the possible generation mechanisms of switchbacks, which have to be able to also account for structures that are not purely Alfvénic. One of the possible candidates, among others, manifesting the described characteristics is the firehose instability.
Mesoscopic Mechanics
Creators: name: Sowa, Artur
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: This article is concerned with the existence, status and description of the so-called emergent phenomena believed to occur in certain principally planar electronic systems. In fact, two distinctly different if inseparable tasks are accomplished. First, a rigorous mathematical model is proposed of emergent character, which is conceptually bonded with Quantum Mechanics while apparently non-derivable from the many-body Schrödinger equation. I call the resulting conceptual framework the Mesoscopic Mechanics (MeM). Its formulation is space-independent and comprises a nonlinear and holistic extension of the free electron model. Secondly, the question of relevancy of the proposed ``emergent mechanics" to the actually observed phenomena is discussed. In particular, I postulate a probabilistic interpretation, and indicate how the theory could be applied and verified by experiment. The Mesoscopic Mechanics proposed here has been deduced from the Nonlinear Maxwell Theory (NMT)--a classical in character nonlinear field theory. This latter theory has already been shown to provide a consistent phenomenological model of such phenomena as superconductivity, charge stripes, magnetic vortex lattice, and magnetic oscillations. The NMT, which arose from geometric considerations, has long been awaiting an explanation as to its ties with the fundamental principles. I believe the MeM provides at least a partial explanation to this effect.
description: 20 pages, 2 figures
Spin correlations among the charge carriers in an ordered stripe phase
Creators: name: Boothroyd, A. T.
name: Freeman, P. G.
name: Prabhakaran, D.
name: Hiess, A.
name: Enderle, M.
name: Kulda, J.
name: Altorfer, F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have observed a diffuse component to the low-energy magnetic excitation spectrum of stripe-ordered La5/3Sr1/3NiO4 probed by neutron inelastic scattering. The diffuse scattering forms a square pattern with sides parallel and perpendicular to the stripe directions. The signal is dispersive, with a maximum energy of ~10 meV. Probed at 2 meV the scattering decreases in strength with increasing temperature, and is barely visible at 100 K. We argue that the signal originates from dynamic, quasi- one-dimensional, antiferromagnetic correlations among the stripe electrons.
description: 4 pages, 4 figures. To be published in Physical Review Letters
Not all doped Mott insulators have a pseudogap: key role of van Hove singularities
Creators: name: Wu, Wei
name: Scheurer, Mathias S.
name: Ferrero, Michel
name: Georges, Antoine
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The Mott insulating phase of the parent compounds is frequently taken as starting point for the underdoped high-$T_c$ cuprate superconductors. In particular, the pseudogap state is often considered as deriving from the Mott insulator. In this work, we systematically investigate different weakly-doped Mott insulators on the square and triangular lattice to clarify the relationship between the pseudogap and Mottness. We show that doping a two-dimensional Mott insulator does not necessarily lead to a pseudogap phase. Despite its inherent strong-coupling nature, we find that the existence or absence of a pseudogap depends sensitively on non-interacting band parameters and identify the crucial role played by the van Hove singularities of the system. Motivated by a SU(2) gauge theory for the pseudogap state, we propose and verify numerically a simple equation that governs the evolution of characteristic features in the electronic scattering rate.
description: 6 pages, 5 figures
Karman-Howarth-Monin equation for compressible Hall MHD turbulence simulations
Creators: name: Montagud-Camps, Victor
name: Hellinger, Petr
name: Verdini, Andrea
name: Papini, Emanuele
name: Landi, Simone
name: Franci, Luca
name: Matteini, Lorenzo
Publisher: name: Zenodo
Year: 2021
Subjects: Turbulence
Solar Wind
Numerical simulations

description: Turbulence is a physical process ubiquitous in the solar wind. It consists of non-linear interactions that generate a net transfer of energy from large scale fluctuations to smaller ones at a constant rate. Thus, turbulence can act as a possible source of heating for the solar wind. In order to assess the energy of fluctuations that goes into dissipative processes due to turbulence, it is necessary to measure the energy transfer rate across the scales where turbulence is taking place. The Karman-Howarth-Monin (KHM) equations provide a way to measure the energy cascade rate based on the measurement of structure functions. Their advantage over other methods is that the KHM equations can be directly derived from the equations that describe the plasma, taking only a few supplementary assumptions. The anisotropy of turbulence is one of those assumptions that can alter the estimation of the energy cascade rate computed from the KHM equations. With the aid of 3D compressible Hall-MHD numerical simulations, we evaluate the effect of turbulence anisotropy over the KHM estimation of the energy cascade rate at MHD and Hall-MHD scales