cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
AGP REGULATES THE NEUTROPHIL AND ENDOTHELIAL CELL INFLAMMATORY RESPONSE
Creators: name: MIRANDA RIBERA, ALBA
Publisher: name: Universit� degli Studi di Milano
Year: 2010

description: Neutrophil degranulation, angiogenesis and wound healing are three important host responses during inflammation. In this thesis we studied how the immunocalin ?1-acid glycoprotein (AGP), in its role of immunomodulatory acute phase protein, affected this processes. We studied bovine neutrophil degranulation within the frame of acute inflammation and we studied angiogenesis and wound healing on endothelial human primary cells. We found that AGP exhorts an important role downregulating both spontaneous and ZAS activated degranulation of secondary bovine neutrophil granules but not on primary granules, and it does it in a dose dependent way. Carbohydrate moiety was found to be critical since desialylated AGP did not have any effects on secondary granules exocytosis. When tested on endothelial cells AGP clearly inhibited Matrigel induced angiogenesis, and modulated endothelial cell adhesion in a biphasic way, inhibiting it at high concentrations. Migration into a wound was also inhibited by high concentrations of AGP in a reversible way. On the modified Boyden chambers AGP acted both as a chemokinetic and as a chemoattractant with results similar to those obtained when FBS was used as a chemoattractant. In our last set of experiments we tested human PMN adhesion to an endothelial monolayer, and we saw that AGP clearly inhibits fMLP/CytoB activated PMN?s to the monolayer whether this is LPS activated or not. Taken together this results support the hypothesis that AGP is heavily involved in the fine tuning of neutrophil activity in the inflammatory environment and endothelial cell behavior.
Alternative approaches to the analysis of consumer spatial behavior
Creators: name: Taylor, Stuart Martin
Publisher: name: University of British Columbia
Year: 2010

description: Recent studies have sought to explain consumer spatial behaviour in terms of the psychological characteristics of the consumer. A variety of psychological attributes have been suggested as potential independent variables including perceptions, beliefs, attitudes and values. This study seeks to synthesise these disparate approaches through the identification and measurement of consumer dispositions which are seen to function as central components in the decision making process leading to behaviour. Particular emphasis is placed upon the development of a reliable and valid set of dispositional scales which it is hoped might have applicability beyond this single study. This research makes a further contribution to the existing literature by comparing the ability of a dispositional model to predict retail choices with that of traditional shopping behaviour models based on measures of the locational and biographical characteristics of the consumer. Interview responses and a factor analysis of questionnaire data identified five major dispositions underlying retail choices with respect to clothing purchases. These were labeled status-orientation, convenience-orientation, fashion-orientation, price orientation and quality-orientation. A set of Likert scales was developed to measure these dispositions and a pretest was conducted to ensure that established psychometric standards were met. The major data collection phase comprised a questionnaire survey of a stratified random sample of households drawn from the City of Vancouver and adjacent municipalities. The data provided information on the respondent's dispositions, shopping behaviour and biographical characteristics. Location relative to retail facilities was subsequently determined from the respondent's address. A series of discriminant analyses were performed on the questionnaire data to compare the efficacy of locational, biographical and dispositional variables as discriminators between retail patronage groups. The groups were defined on the basis of the type of store and type of shopping centre patronized on each of four shopping trips for clothing. The results suggest that retail choices may be the outcome of a two-stage decision process: the first stage at a macro scale involving the isolation of one or more feasible alternative shopping areas primarily on the basis of locational considerations; the second stage, at a micro scale involving the selection of a store within one of the preselected shopping areas with dispositional factors being fundamental in directing the evaluation of alternatives and the choice of a preferred store.
Measurement of |V_cb| and the Form-Factor Slope in Bbar -> D l- nubar Decays in Events Tagged by a Fully Reconstructed B Meson
Creators: name: The BABAR Collaboration
name: Aubert, B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a measurement of the Cabibbo-Kobayashi-Maskawa matrix element |V_cb| and the form-factor slope rho^2 in Bbar -> Dl- nubar decays based on 460 million BBar events recorded at the Upsilon(4S) resonance with the BaBar detector. BBar -> Dl- nubar decays are selected in events in which a hadronic decay of the second B meson is fully reconstructed. We measure the differential decay rate and determine G(1) |V_cb|= (43.0 \pm 1.9 \pm 1.4)\times 10^{-3} and rho^2 = 1.20 \pm 0.09 \pm 0.04, where G(1) is the the hadronic form factor at the point of zero recoil. We also determine the exclusive branching fractions and find BF(B^- -> D0l- nubar) = (2.31 \pm 0.08 \pm 0.09)% and BF (B0bar -> D+ l^- nubar)=(2.23 \pm 0.11 \pm 0.11)%.
description: 8 pages, 2 postscript figures, submitted to Physical Review Letters
RXTE confirmation of the intermediate polar status of IGR J15094-6649
Creators: name: Butters, O. W.
name: Norton, A. J.
name: Mukai, K.
name: Barlow, E. J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Aims. To establish the X-ray properties of the intermediate polar candidate IGR J15094-6649 and therefore confirm its inclusion into the class. Methods. 42 856 s of X-ray data from RXTE was analysed. Frequency analysis was used to constrain temporal variations and spectral analysis used to characterise the emission and absorption properties. Results. A spin period of 809.7+-0.6 s is present, revealed as a complex pulse profile whose modulation depth decreases with increasing X-ray energy. The spectrum is well fitted by either a 19+-4 keV Bremsstrahlung or Gamma=1.8+-0.1 power law, with an iron emission line feature and significant absorption in each case. Conclusions. IGR J15094-6649 is confirmed to be an intermediate polar.
description: 3 pages, 5 figures. Submitted to A&A
CRESCITA ED INDICI METABOLICI PRECOCI DELLO STATO NUTRIZIONALE IN FIGLI DI MADRE DIABETICA
Creators: name: FRANCESCATO, GAIA
Publisher: name: Universit� degli Studi di Milano
Year: 2011

description: Background: Infants of diabetic mothers (IDM) are at increased risk for the development of obesity and metabolic syndrome (MS) in childhood. Maternal obesity, fetal macrosomy and early acceleration of postnatal growth may be additional risk factors. Objective: Aim of present study is to assess whether an increased weight gain can be detected in IDM and to define which biochemical markers of metabolism in the newborn and anthropometric parameters in the first year of life can be used to identify those IDM that are most subject to growth acceleration. Design/Methods: 56 infants of daibetic mothers both non insulin-treated (NIT-GDM) and insulin-treated (IT-GDM) have been recruited. Each newborn has been assessed for metabolic and nutritional status (Glycaemia, Electrolytes, Blood Urea Nitrogen, Retinol Binding Protein [RBP], Cholesterol, Triglycerides Total Fatty Acids) at 4+1 days of life. Anthropometric measurements (weight, length, head circumference, waist circumference, tricep skinfold) have been taken in the first year of life (at birth, 1, 3, 6 and 12 months). The most well known risk factors for obesity and MS in childhood and most frequent morbidities of GDM on fetus and newborn have been studied. Results: Premature NIT-GDM, at term NIT-GDM, premature IT-GDM and at term IT-GDM have been compared. Growth pattern has shown to be consistent with normal growth curves of the paediatric population. A greater weight gain in IT-GDM compared to NIT-GDM infants has been found. A reduced incidence of short term most frequent complications of ODM has been found in our sample, compared to literature reports. Greater values of RBP have been detected in IT-GDM infants (p=0.049). Also, RBP values appear to be positively correlated with parameters of waist circumference at 6 and 12 months and weight at 6 and 12 months (p=0.004; R2 0.19). Lipid metabolism was not found to be modified by insulin treatment, and it was not related to growth parameters at any age. Conclusions: The normality of growth parameters and the low incidence of complications in the short term are likely due to effective implementation of monitoring protocols and prevention in pregnancy and early neonatal period. The laboratory data support other findings according to which RBP can be used to identify those subjects that are at increased risk of developing MS in childhood and that are especially in need for an early nutritional intervention.
title: Freispruch verweigert: Eine Zeitreise zum klinisch-psychiatrischen Blick auf die Angehörigen psychisch erkrankter Menschen
Creators: name: Elgeti, Hermann
Publisher: name: Medizinische Hochschule Hannover Bibliothek
Year: 2025
Subjects: subject: 610

description: Wie schaute die Anstalts- bzw. Krankenhauspsychiatrie im 19. und 20. Jahrhundert auf die Angehörigen ihrer Patientinnen und Patienten? Zur Beantwortung dieser Frage geht es auf Spurensuche in einigen psychiatrischen Lehrbüchern dieser Zeit, ergänzt um Werke der bundesdeutschen Psychiatriegeschichtsschreibung. Die Fundstellen zeichnen ein Bild, nach dem Angehörige bei der Entstehung und bei der Heilung einer psychischen Krankheit lange Zeit vor allem ein Risiko darstellten. Soziologisch-sozialpsychiatrisch inspirierte Reformen führten ab den 1970er-Jahren zur Korrektur des klinischen Blicks, die jedoch weder durchgreifend noch nachhaltig war.
description: Sozialpsychiatrische Informationen, vol. 55, no. 2, p. 13
Advancing COVID-19 Diagnosis with Privacy-Preserving Collaboration in Artificial Intelligence
Creators: name: Bai, Xiang
name: Wang, Hanchen
name: Ma, Liya
name: Xu, Yongchao
name: Gan, Jiefeng
name: Fan, Ziwei
name: Yang, Fan
name: Ma, Ke
name: Yang, Jiehua
name: Bai, Song
name: Shu, Chang
name: Zou, Xinyu
name: Huang, Renhao
name: Zhang, Changzheng
name: Liu, Xiaowu
name: Tu, Dandan
name: Xu, Chuou
name: Zhang, Wenqing
name: Wang, Xi
name: Chen, Anguo
name: Zeng, Yu
name: Yang, Dehua
name: Wang, Ming-Wei
name: Holalkere, Nagaraj
name: Halin, Neil J.
name: Kamel, Ihab R.
name: Wu, Jia
name: Peng, Xuehua
name: Wang, Xiang
name: Shao, Jianbo
name: Mongkolwat, Pattanasak
name: Zhang, Jianjun
name: Liu, Weiyang
name: Roberts, Michael
name: Teng, Zhongzhao
name: Beer, Lucian
name: Sanchez, Lorena Escudero
name: Sala, Evis
name: Rubin, Daniel
name: Weller, Adrian
name: Lasenby, Joan
name: Zheng, Chuangsheng
name: Wang, Jianming
name: Li, Zhen
name: Schönlieb, Carola-Bibiane
name: Xia, Tian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Artificial intelligence (AI) provides a promising substitution for streamlining COVID-19 diagnoses. However, concerns surrounding security and trustworthiness impede the collection of large-scale representative medical data, posing a considerable challenge for training a well-generalised model in clinical practices. To address this, we launch the Unified CT-COVID AI Diagnostic Initiative (UCADI), where the AI model can be distributedly trained and independently executed at each host institution under a federated learning framework (FL) without data sharing. Here we show that our FL model outperformed all the local models by a large yield (test sensitivity /specificity in China: 0.973/0.951, in the UK: 0.730/0.942), achieving comparable performance with a panel of professional radiologists. We further evaluated the model on the hold-out (collected from another two hospitals leaving out the FL) and heterogeneous (acquired with contrast materials) data, provided visual explanations for decisions made by the model, and analysed the trade-offs between the model performance and the communication costs in the federated training process. Our study is based on 9,573 chest computed tomography scans (CTs) from 3,336 patients collected from 23 hospitals located in China and the UK. Collectively, our work advanced the prospects of utilising federated learning for privacy-preserving AI in digital health.
description: Nature Machine Intelligence
title: Psychologizing by Economists
Creators: name: Scitovsky, Tibor
Year: 2017

description: Proceedings of the 10th IAREP Annual Colloquium, Linz 1985.
description: Typoskript, Sonderdruck, 4 Seiten und Umschlag, mit handschriftlichen Korrekturen des Verfassers
Text and design in Blake’s developing myth
Creators: name: Ward, Marney Jean McLaughlin
Publisher: name: University of British Columbia
Year: 2010

description: The uniqueness of Blake's engraved or illuminated books derives from their effective union of poetry and painting, calligraphy and drawing. Blake created his composite art form because, consisting as it does of the contraries of text and design, it enabled him to present two perspectives simultaneously. Depending upon the divergence of the perspectives, the interaction of poem and picture ranges from embellishment to satire. This dissertation examines the interrelationships of text and design in Songs of Innocence and of Experience, The Book of Urizen, and Jerusalem, representing the early, middle, and late stages of Blake's myth, respectively. In Songs of Innocence, text and design tend to be synergetic, reinforcing one another to establish the harmony and integrity typical of Innocence. In Songs of Experience, there is a tension between the two art forms, reflecting the uncertainties of the fragmented state of Experience. Because of the logical structure of language and the spontaneous appeal of design, the text usually presents the experienced vision and the illustration an innocent overview. The Book of Urizen and Jerusalem, being narrative in nature, demand a continuous, linear movement of the text. The designs of these works counteract this progression, acting as epiphanic moments, or eternal spots of time. The designs also function structurally, suggesting the mirror symmetry of Urizen, and presenting, in the chapter frontispieces of Jerusalem, the characters that will act as blocking forces for each chapter. In the prophecies, the interactions of text and design may extend to widely separated plates, and thus help unify the work. As Blake's myth develops, the motifs presented in both art forms evolve from the pastoral and anti-pastoral imagery of the Songs, to the elemental environments and the giant human forms of Urizen, to the complete mythological universe of Jerusalem. This dissertation follows a number of crucial motifs (such as trees, vines, serpents, "tygers," lions, sheep, the four elements, the circle, wings, clothing, veils, the city, the ark, the priest [Urizen] and the prophet [Los]) as they occur in the three works. Finally, it gives a broad interpretation of each work, based on a study of the composite art form, plus a detailed analysis of several Songs, and of selected designs and passages of text from the later works.
Quantum transport of high-dimensional spatial information with a nonlinear detector
Creators: name: Sephton, Bereneice
name: Vallés, Adam
name: Nape, Isaac
name: Cox, Mitchell A.
name: Steinlechner, Fabian
name: Konrad, Thomas
name: Torres, Juan P.
name: Roux, Filippus S.
name: Forbes, Andrew
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Information exchange between two distant parties, where information is shared without physically transporting it, is a crucial resource in future quantum networks. Doing so with high-dimensional states offers the promise of higher information capacity and improved resilience to noise, but progress to date has been limited. Here we demonstrate how a nonlinear parametric process allows for arbitrary high-dimensional state projections in the spatial degree of freedom, where a strong coherent field enhances the probability of the process. This allows us to experimentally realise quantum transport of high-dimensional spatial information facilitated by a quantum channel with a single entangled pair and a nonlinear spatial mode detector. Using sum frequency generation we upconvert one of the photons from an entangled pair resulting in high-dimensional spatial information transported to the other. We realise a d=15 quantum channel for arbitrary photonic spatial modes which we demonstrate by faithfully transferring information encoded into orbital angular momentum, Hermite-Gaussian and arbitrary spatial mode superpositions, without requiring knowledge of the state to be sent. Our demonstration merges the nascent fields of nonlinear control of structured light with quantum processes, offering a new approach to harnessing high-dimensional quantum states, and may be extended to other degrees of freedom too.
description: 9 pages, 6 figures and SI
The viscosity bound in string theory
Creators: name: Sinha, Aninda
name: Myers, Robert C.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The ratio of shear viscosity to entropy density $η/s$ of any material in nature has been conjectured to have a lower bound of $1/4π$, the famous KSS bound. We examine string theory models for evidence in favour of and against this conjecture. We show that in a broad class of models quantum corrections yield values of $η/s$ just above the KSS bound. However, incorporating matter fields in the fundamental representation typically leads to violations of this bound. We also outline a program to extend AdS/CFT methods to RHIC phenomenology.
description: 4 pages, To appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville, Tennessee
First and second order magnetic anisotropy and damping of europium iron garnet under high strain
Creators: name: Ortiz, Victor H.
name: Arkook, Bassim
name: Li, Junxue
name: Aldosary, Mohammed
name: Biggerstaff, Mason
name: Yuan, Wei
name: Warren, Chad
name: Kodera, Yasuhiro
name: Garay, Javier E.
name: Barsukov, Igor
name: Shi, Jing
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Understanding and tailoring static and dynamic properties of magnetic insulator thin films is important for spintronic device applications. Here, we grow atomically flat epitaxial europium iron garnet (EuIG) thin films by pulsed laser deposition on (111)-oriented garnet substrates with a range of lattice parameters. By controlling the lattice mismatch between EuIG and the substrates, we tune the strain in EuIG films from compressive to tensile regime, which is characterized by X-ray diffraction. Using ferromagnetic resonance, we find that in addition to the first-order perpendicular magnetic anisotropy which depends linearly on the strain, there is a significant second-order one that has a quadratic strain dependence. Inhomogeneous linewidth of the ferromagnetic resonance increases notably with increasing strain, while the Gilbert damping parameter remains nearly constant (~ 2x10^-2). These results provide valuable insight into the spin dynamics in ferrimagnetic insulators and useful guidance for material synthesis and engineering of next-generation spintronics applications.
Anisotropic hysteresis on ratcheted superhydrophobic surfaces
Creators: name: Kusumaatmaja, H.
name: Yeomans, J. M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Biological Physics (physics.bio-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We consider the equilibrium behaviour and dynamics of liquid drops on a superhydrophobic surface patterned with sawtooth ridges or posts. Due to the anisotropic geometry of the surface patterning, the contact line can preferentially depin from one side of the ratchets, leading to a novel, partially suspended, superhydrophobic state. In both this configuration, and the collapsed state, the drops show strong directional contact angle hysteresis as they are pushed across the surface. The easy direction is, however, different for the two states. This observation allows us to interpret recent experiments describing the motion of water drops on butterfly wings.
description: 4 pages, 4 figures
Weisfeiler-Leman Indistinguishability of Graphons
Creators: name: Böker, Jan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: The color refinement algorithm is mainly known as a heuristic method for graph isomorphism testing. It has surprising but natural characterizations in terms of, for example, homomorphism counts from trees and solutions to a system of linear equations. Grebík and Rocha (2022) have recently shown how color refinement and notions that characterize it generalize to graphons, which emerged as limit objects in the theory of dense graph limits. In particular, they show that these characterizations are still equivalent in the graphon case. The $k$-dimensional Weisfeiler-Leman algorithm ($k$-WL) is a more powerful variant of color refinement that colors $k$-tuples instead of single vertices, where the terms $1$-WL and color refinement are often used interchangeably since they compute equivalent colorings. We show how to adapt the result of Grebík and Rocha to $k$-WL or, in other words, how $k$-WL and its characterizations generalize to graphons. In particular, we obtain characterizations in terms of homomorphism densities from multigraphs of bounded treewidth and linear equations. We give a simple example that parallel edges make a difference in the more general case of graphons, which means that, there, the equivalence between $1$-WL and color refinement does not hold anymore. We also show how this equivalence can be recovered by defining a variant of $k$-WL that corresponds to homomorphism densities from simple graphs of bounded treewidth.
Muon Production in Relativistic Cosmic-Ray Interactions
Creators: name: Klein, Spencer R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Cosmic-rays with energies up to $3\times10^{20}$ eV have been observed. The nuclear composition of these cosmic rays is unknown but if the incident nuclei are protons then the corresponding center of mass energy is $\sqrt{s_{nn}} = 700$ TeV. High energy muons can be used to probe the composition of these incident nuclei. The energy spectra of high-energy ($>$ 1 TeV) cosmic ray induced muons have been measured with deep underground or under-ice detectors. These muons come from pion and kaon decays and from charm production in the atmosphere. Terrestrial experiments are most sensitive to far-forward muons so the production rates are sensitive to high-$x$ partons in the incident nucleus and low-$x$ partons in the nitrogen/oxygen targets. Muon measurements can complement the central-particle data collected at colliders. This paper will review muon production data and discuss some non-perturbative (soft) models that have been used to interpret the data. I will show measurements of TeV muon transverse momentum ($p_T$) spectra in cosmic-ray air showers from MACRO, and describe how the IceCube neutrino observatory and the proposed Km3Net detector will extend these measurements to a higher $p_T$ region where perturbative QCD should apply. With a 1 km$^2$ surface area, the full IceCube detector should observe hundreds of muons/year with $p_T$ in the pQCD regime.
description: 4 pages, 2 figures - To appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville, Tennessee. Tweaked formatting at organizers request
Robust parameter estimation using the ensemble Kalman filter
Creators: name: Reich, Sebastian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62L12, 62M20, 62F15, 60L90

description: Standard maximum likelihood or Bayesian approaches to parameter estimation for stochastic differential equations are not robust to perturbations in the continuous-in-time data. In this paper, we give a rather elementary explanation of this observation in the context of continuous-time parameter estimation using an ensemble Kalman filter. We employ the frequentist perspective to shed new light on three robust estimation techniques; namely subsampling the data, rough path corrections, and data filtering. We illustrate our findings through a simple numerical experiment.
Proyecto sobre el impacto de la crisis sanitaria relacionada con el Covid-19 en el sector turístico de la ciudad de Granada.
Creators: name: Prados-Castillo, Juan F
name: MARTIN MARTIN JOSE MARIA
name: JÍMENEZ AGUILERA JUAN DE DIOS
Publisher: name: Zenodo
Year: 2020
Subjects: Tourist
Granada
Airbnb
P2P

description: Desde
 el estudio de la bibliografía relacionada, se ha desarrollado un proyecto que pretende analizar las
 repercusiones del COVID 19 en el sector turístico de la ciudad de Granada En concreto, el proyecto se
 centra en analizar el rechazo que se puede generar hacía el turismo llegado a las viviendas de
 alquiler turístico de la ciudad de Granada pues en ellas el turista interactúa de forma más intensa con
 los entornos residenciales
 Dado
 que el sector turístico es clave para nuestra economía y genera numerosas interacciones, parece
 importante incrementar el conocimiento sobre la actitud ciudadana en este tema en particular Para ello, y
 en el marco de esta tesis en desarrollo, se ha diseñado una encuesta como primera acción de este
 proyecto La misma permanecerá abierta durante el mes de abril de 2020
Composition of super-Earths, super-Mercuries, and their host stars
Creators: name: Adibekyan, V.
name: Santos, N. C.
name: Dorn, C.
name: Sousa, S. G.
name: Hakobyan, A. A.
name: Bitsch, B.
name: Mordasini, Ch.
name: Barros, S. C. C.
name: Mena, E. Delgado
name: Demangeon, O. D. S.
name: Faria, J. P.
name: Figueira, P.
name: Soares, B. M. T. B.
name: Israelian, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Because of their common origin, it was assumed that the composition of planet building blocks should, to a first order, correlate with stellar atmospheric composition, especially for refractory elements. In fact, information on the relative abundance of refractory and major rock-forming elements such as Fe, Mg, Si has been commonly used to improve interior estimates for terrestrial planets. Recently Adibekyan et al. (2021) presented evidence of a tight chemical link between rocky planets and their host stars. In this study we add six recently discovered exoplanets to the sample of Adibekyan et al and re-evaluate their findings in light of these new data. We confirm that i) iron-mass fraction of rocky exoplanets correlates (but not a 1:1 relationship) with the composition of their host stars, ii) on average the iron-mass fraction of planets is higher than that of the primordial iron-mass fraction of the protoplanetary disk, iii) super-Mercuries are formed in disks with high iron content. Based on these results we conclude that disk-chemistry and planet formation processes play an important role in the composition, formation, and evolution of super-Earths and super-Mercuries.
description: Peer-reviewed conference (Astronomy in the Crossroads of Interdisciplinary and Multidisciplinary Sciences) proceeding
Europa necesita inmigrantes como consecuencia del proceso de envejecimiento de la población.
Creators: name: Prados-Castillo, Juan F
Publisher: name: Zenodo
Year: 2017

description: Históricamente los movimientos migratorios internacionales han cubierto desajustes coyunturales en la situación demográfica y económica de los diferentes países. Centrando la atención en el presente y futuro cercano de Europa, no es aventurado lanzar una predicción categórica y simple; “Europa necesitará urgentemente inmigrantes”. En este caso tal necesidad no se deriva de motivos económicos, sustentados en una expansión de su producción, sino en motivos meramente demográficos. Está claro que en un contexto de descenso demográfico, de pérdidas de población, para mantener el mismo nivel de producción sólo hay dos alternativas. La primera sería incrementar drásticamente los niveles de productividad, la segunda suplir las necesidades de población abriendo las puertas a mayores volúmenes de inmigrantes. Este asunto, del que poco se habla si consideramos su gravedad, impactará no en demasiados años sobre los sistemas de pensiones y sanidad, pues su sustento requiere de una proporción suficiente de trabajadores activos/trabajadores retirados, que de forma natural no se alcanzará. Además, asumiendo una apertura de las fronteras exteriores, se planteará un gran reto formativo y de integración, pues la economía europea a diferencia de la asiática no ha focalizado su orientación en actividades de perfil bajo, sino que se requieren trabajadores cualificados y correctamente formados. La movilidad internacional de trabajadores deberá asumir una adecuación de los perfiles de los profesionales a los estándares de trabajo en los mercados receptores, siendo la formación un aspecto clave en este proceso de ajuste. Programas online como el MBA de VIU contribuyen a mejorar las posibilidades de empleabilidad cruzada entre países, facilitando la adaptación de trabajadores a puestos directivos en mercados ajenos.
Superdiffusivity for a Brownian polymer in a continuous Gaussian environment
Creators: name: Bezerra, Sérgio
name: Tindel, Samy
name: Viens, Frederi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 82D60, 60K37, 60G15 (Primary)

description: This paper provides information about the asymptotic behavior of a one-dimensional Brownian polymer in random medium represented by a Gaussian field $W$ on ${\mathbb{R}}_+\times{\mathbb{R}}$ which is white noise in time and function-valued in space. According to the behavior of the spatial covariance of $W$, we give a lower bound on the power growth (wandering exponent) of the polymer when the time parameter goes to infinity: the polymer is proved to be superdiffusive, with a wandering exponent exceeding any $α<3/5$.
description: Published in at http://dx.doi.org/10.1214/07-AOP363 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
An Obfuscating C Compiler for Encrypted Computing
Creators: name: Breuer, Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences
subject: 68N20

description: This paper describes an `obfuscating' C compiler for encrypted computing. The context consists of (i) a processor that `works encrypted', taking in encrypted inputs and producing encrypted outputs while the data remains in encrypted form throughout processing, and (ii) machine codes that support arbitrary interpretations of the encrypted input and outputs from each instruction, as far as an adversary who does not know the encryption can tell. The compiler on each recompilation of the same source generates object code of the same form for which the runtime traces have the same form, but the data beneath the encryption may arbitrarily differ from nominal at each point in the trace, independently so far as the laws of computation allow.
description: Begun Mar 16 2018, submitted May 28 2018, SECRYPT 2018, accepted, final copy Jun 19 2018, withdrawn for conflict of dates. The paper extends to arrays of arrays one at SECRYPT 2017 that compiled arrays (difficulty is pointers). Rewritten for DSN 2018 (1902.06146) and rejected! (it added ideal criteria for security that a source language translator cannot satisfy). Here for historical reference. arXiv admin note: text overlap with arXiv:1902.06146
title: A Mathematical Theory of Evolution, based on the Conclusions of Dr. J. C. Willis, F.R.S
Creators: name: Yule, George Udny
Year: 2017

description: The following work is founded on that conception of evolution, the most recent and precise formulation of which is due to Dr. J. C. WILLIS, and represents an attempt to develop the quantitative consequences of the conception. (Auszug, S. 1)
description: Kopie Zeitschriftenartikel, 67 Seiten, mit handschriftlichen Anstreichungen, paginiert 21-87
Additional file 2 of Modulation of SIRT3 expression through CDK4/6 enhances the anti-cancer effect of sorafenib in hepatocellular carcinoma cells
Creators: name: Jo, Hanhee
name: Park, Yusun
name: Kim, Taehun
name: Kim, Jisu
name: Lee, Jong Sook
name: Kim, Seon Yoo
name: Chung, Jee-in
name: Ko, Hae yong
name: Pyun, Jae-Chul
name: Kim, Kyung Sik
name: Lee, Misu
name: Yun, Mijin
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 2 Figure S1. Full-length original blots of Fig. 2b. Figure S2. Full-length original blots of Fig. 2d. Figure S3. Full-length original blots of Fig. 3a. Figure S4. Full-length original blots of Fig. 3b. Figure S5. Full-length original blots of Fig. 5a. Figure S6. Full-length original blots of Fig. 5b (HepG2). Figure S7. Full-length original blots of Fig. 5c(Huh7). Figure S8. Full-length original blots of Fig. 5d (SK-Hep1). Figure S9. Full-length original blots of Fig. 6b. Figure S10. Full-length original blots of Fig. 6d. Figure S11. Full-length original blots of Supporting data 2. Figure S12. Full-length original blots of Supporting data 4. Figure S13. Full-length original blots of Supporting data 7.
On the Effectiveness of Sampled Softmax Loss for Item Recommendation
Creators: name: Wu, Jiancan
name: Wang, Xiang
name: Gao, Xingyu
name: Chen, Jiawei
name: Fu, Hongcheng
name: Qiu, Tianyu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: The learning objective plays a fundamental role to build a recommender system. Most methods routinely adopt either pointwise or pairwise loss to train the model parameters, while rarely pay attention to softmax loss due to its computational complexity when scaling up to large datasets or intractability for streaming data. The sampled softmax (SSM) loss emerges as an efficient substitute for softmax loss. Its special case, InfoNCE loss, has been widely used in self-supervised learning and exhibited remarkable performance for contrastive learning. Nonetheless, limited recommendation work uses the SSM loss as the learning objective. Worse still, none of them explores its properties thoroughly and answers ``Does SSM loss suit for item recommendation?'' and ``What are the conceptual advantages of SSM loss, as compared with the prevalent losses?'', to the best of our knowledge.
 In this work, we aim to offer a better understanding of SSM for item recommendation. Specifically, we first theoretically reveal three model-agnostic advantages: (1) mitigating popularity bias; (2) mining hard negative samples; and (3) maximizing the ranking metric. However, based on our empirical studies, we recognize that the default choice of cosine similarity function in SSM limits its ability in learning the magnitudes of representation vectors. As such, the combinations of SSM with the models that also fall short in adjusting magnitudes may result in poor representations. One step further, we provide mathematical proof that message passing schemes in graph convolution networks can adjust representation magnitude according to node degree, which naturally compensates for the shortcoming of SSM. Extensive experiments on four benchmark datasets justify our analyses, demonstrating the superiority of SSM for item recommendation. Our implementations are available in both TensorFlow and PyTorch.
description: Accepted by TOIS
La falta de formación de los directivos limita las posibilidades de expansión empresarial.
Creators: name: Prados-Castillo, Juan F
Publisher: name: Zenodo
Year: 2017

description: Hubo un tiempo en el que el principal factor de producción era la tierra, su posesión garantizaba la riqueza. Más adelante conforme las instituciones empresariales y económicas se desarrollaron, el factor productivo clave pasó a ser el capital. El movimiento de capitales y las inversiones fueron los dinamizadores de la economía, pues los sectores emergentes pasaron de ser intensivos en factores naturales a serlo en capital. En la actualidad, desde hace varias décadas, somos testigos de un nuevo cambio en el modelo de producción. Sólo es necesario echar un vistazo a las empresas que copan los primeros puestos en los rankings internacionales para entender cuál es el factor intensivo en ellas, el conocimiento. Sobre el directivo recae la responsabilidad de rentabilizar el conocimiento, siendo la formación y la experiencia los elementos clave para operar en entornos intensivos en él. Diversas economías, tanto en países desarrollados como en vías de desarrollo, se enfrentan al reto de la profesionalización de sus directivos y España no escapa de esta necesidad. Según el ranking elaborado por el Foro Económico Mundial en 2017, España ocupa el puesto 144 en cuanto a la calidad de la formación de sus ejecutivos, el 95 en lo que respecta a la formación de la plantilla y el 59 en grado de confianza de la gestión profesional. Según el presidente de la Asociación Española de Escuelas de Negocios (AEEN), Alfonso Luengo, actualmente se presta una mayor atención a la formación de los empleados de base que a la de los directivos. Esto se explica por la falta de tiempo de estos últimos y a las mayores disponibilidades de ayudas para la formación de empleados. Esta opinión, emitida en el último Congreso Nacional de Escuelas de Negocios, suma a la percepción de autosatisfacción que, señalada en este mismo foro por Alfonso Luengo, director de Fundae (antigua Fundación Tripartita). Según el Observatorio de Competitividad Empresarial de la Cámara de Comercio de Madrid, un 55% de las empresas considera que sus directivos tienen un alto nivel de cualificación, contrastando los datos con señalada posición en los rankings internacionales. El Banco de España en su último informe anual señala que los empresarios y directivos españoles están peor preparados que sus homólogos europeos. El informe alerta sobre la imperiosa necesidad de reforzar la formación de directivos pero también de trabajadores asalariados y emprendedores. Además, el Banco de España indica que los pobres resultados en habilidades directivas se atribuyen a un menor grado de profesionalización y a una menor formación de los cuadros directivos, hecho que se intensifica en el caso de las pequeñas y medianas empresas. Esta opinión es refrendada por la World Management Survey, en la que se destaca que los españoles están a la cola de las grandes economías europeas en cuanto a capacidades de los empresarios.
title: On the logistic law of growth and its empirical verifications in biology
Creators: name: Feller, William
Year: 2017

description: Stempel mit Reichsadler und Hakenkreuz der Universitätsbibliothek Wien.
description: Fotokopie, 2 Seiten pro Seite, 8 Blätter, paginiert 51-66
title: Die Grundlagen der Volterraschen Theorie des Kampfes ums Dasein in wahrscheinlichkeitstheoretischer Behandlung
Creators: name: Feller, William
Year: 2017

description: Fotokopie, 2 Seiten pro Seite, 15 Blätter, mit handschriftlichen Anstreichungen, paginiert 11-40
Trace anomaly and induced action for a metric-scalar background
Creators: name: Asorey, Manuel
name: Silva, Wagno Cesar e
name: Shapiro, Ilya L.
name: Vale, Públio R. B. do
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 81T50, 81T20, 81T15, 83C45

description: The conformal anomaly and anomaly-induced effective action represent useful and economic ways to describe semiclassical contributions to the action of gravity. We discuss the anomaly in the case when the background is formed by metric and scalar fields and formulate the induced action in two standard covariant forms. The analysis of induced action at low energies reveals existing connection to the renormalization group and effective potential. The classification of anomalous terms is extended to the scalar background and ambiguities in the total derivative terms in the anomaly are considered using Pauli-Villars regularization.
description: Explanations and references added. Fits the version to be published in EPJC. 22 pages, no figures
Multipole-moment effects in ion-molecule reactions at low temperatures: part I -- Ion-dipole enhancement of the rate coefficients of the He$^+$ + NH$_3$ and He$^+$ + ND$_3$ reactions at collision energies near $0$ K
Creators: name: Zhelyazkova, Valentina
name: Martins, Fernanda B. V.
name: Agner, Josef A.
name: Schmutz, Hansjürg
name: Merkt, Frédéric
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The energy dependence of the rates of the reactions between He$^+$ and ammonia (NY$_3$, Y= {H,D}), forming NY$_2^+$, Y and He as well as NY$^+$, Y$_2$ and He, and the corresponding product branching ratios have been measured at low collision energies between 0 and $k_{\mathrm{B}}\cdot40$ K using a recently developed merged-beam technique [Allmendinger {\it et al.}, ChemPhysChem {\bf 17}, 3596 (2016)]. To avoid heating of the ions by stray electric fields, the reactions are observed within the large orbit of a highly excited Rydberg electron. A beam of He Rydberg atoms was merged with a supersonic beam of ammonia using a curved surface-electrode Rydberg-Stark deflector, which was also used for adjusting the final velocity of the He Rydberg atoms, and thus the collision energy ($E_{\rm coll}$). A collision-energy resolution of about 200 mK was reached at the lowest $E_{\rm coll}$ values. The reaction rate coefficients exhibit a sharp increase at collision energies below $\sim k_{\mathrm{B}}\cdot5$ K and pronounced deviations from Langevin-capture behaviour. The experimental results are interpreted in terms of an adiabatic capture model describing the rotational-state-dependent orientation of the ammonia molecules by the electric field of the He$^+$ atom. The model faithfully describes the experimental observations. The enhancement of the reaction yields of both reactions observed at the lowest collision energies is attributed to high-field-seeking states which experience linear Stark shifts at low electric fields. Thermal capture rate constants are derived from the model for the temperature range between 0 and 10~K relevant for astrochemistry. Comparison of the calculated thermal capture rate coefficients with the absolute reaction rates measured above 27 K by Marquette {\it et al.} (Chem. Phys. Lett., 1985, {\bf 122}, 431) suggests that only 40\% of the close collisions are reactive.
description: 18 pages, 8 figures
The Galaxy Population of Low-Redshift Abell Clusters
Creators: name: Barkhouse, Wayne A.
name: Yee, H. K. C.
name: Lopez-Cruz, Omar
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a study of the luminosity and color properties of galaxies selected from a sample of 57 low-redshift Abell clusters. We utilize the non-parametric dwarf-to-giant ratio (DGR) and the blue galaxy fraction (fb) to investigate the clustercentric radial-dependent changes in the cluster galaxy population. Composite cluster samples are combined by scaling the counting radius by r200 to minimize radius selection bias. The separation of galaxies into a red and blue population was achieved by selecting galaxies relative to the cluster color-magnitude relation. The DGR of the red and blue galaxies is found to be independent of cluster richness (Bgc), although the DGR is larger for the blue population at all measured radii. A decrease in the DGR for the red and red+blue galaxies is detected in the cluster core region, while the blue galaxy DGR is nearly independent of radius. The fb is found not to correlate with Bgc; however, a steady decline toward the inner-cluster region is observed for the giant galaxies. The dwarf galaxy fb is approximately constant with clustercentric radius except for the inner cluster core region where fb decreases. The clustercentric radial dependence of the DGR and the galaxy blue fraction, indicates that it is unlikely that a simple scenario based on either pure disruption or pure fading/reddening can describe the evolution of infalling dwarf galaxies; both outcomes are produced by the cluster environment.
description: 28 pages, 6 figures, accepted for publication in ApJ
On the nature of striped phases: Striped phases as a stage of "melting" of 2D crystals
Creators: name: Derzhko, Volodymyr
name: Jedrzejewski, Janusz
name: Krokhmalskii, Taras
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We discuss striped phases as a state of matter intermediate between two extreme states: a crystalline state and a segregated state. We argue that this state is very sensitive to weak interactions, compared to those stabilizing a crystalline state, and to anisotropies. Moreover, under suitable conditions a 2D system in a striped phase decouples into (quasi) 1D chains. These observations are based on results of our studies of an extension of a microscopic quantum model of crystallization, proposed originally by Kennedy and Lieb.
description: 16 pages, 8 figures
Crystallization of hard-sphere glasses
Creators: name: Zaccarelli, E.
name: Valeriani, C.
name: Sanz, E.
name: Poon, W. C. K.
name: Cates, M. E.
name: Pusey, P. N.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study by molecular dynamics the interplay between arrest and crystallization in hard spheres. For state points in the plane of volume fraction ($0.54 \leq phi \leq 0.63$) and polydispersity ($0 \leq s \leq 0.085$), we delineate states that spontaneously crystallize from those that do not. For noncrystallizing (or precrystallization) samples we find isodiffusivity lines consistent with an ideal glass transition at $ϕ_g \approx 0.585$, independent of $s$. Despite this, for $s<0.05$, crystallization occurs at $ϕ> ϕ_g$. This happens on time scales for which the system is aging, and a diffusive regime in the mean square displacement is not reached; by those criteria, the system is a glass. Hence, contrary to a widespread assumption in the colloid literature, the occurrence of spontaneous crystallization within a bulk amorphous state does not prove that this state was an ergodic fluid rather than a glass.
description: 4 pages, 3 figures