cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The weighted words collector
Creators: name: Boisberranger, Jérémie Du
name: Gardy, Danièle
name: Ponty, Yann
Publisher: name: arXiv
Year: 2012
Subjects: subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: Motivated by applications in bioinformatics, we consider the word collector problem, i.e. the expected number of calls to a random weighted generator of words of length $n$ before the full collection is obtained. The originality of this instance of the non-uniform coupon collector lies in the, potentially large, multiplicity of the words/coupons of a given probability/composition. We obtain a general theorem that gives an asymptotic equivalent for the expected waiting time of a general version of the Coupon Collector. This theorem is especially well-suited for classes of coupons featuring high multiplicities. Its application to a given language essentially necessitates some knowledge on the number of words of a given composition/probability. We illustrate the application of our theorem, in a step-by-step fashion, on three exemplary languages, revealing asymptotic regimes in $Θ(μ(n)\cdot n)$ and $Θ(μ(n)\cdot \log n)$, where $μ(n)$ is the sum of weights over words of length $n$.
Dementia after Stroke Increases the Risk of Long-Term Stroke Recurrence
Creators: name: Moroney, Joan T.
name: Bagiella, Emilia
name: Tatemichi, Thomas K.
name: Paik, Myunghee C.
name: Stern, Yaakov
name: Desmond, David W.
Publisher: name: Columbia University
Year: 1997
Subjects: Neurology
Medicine
Dementia
Cerebrovascular disease--Risk factors

description: Background: Although risk factors for first stroke have been identified, the predictors of long-term stroke recurrence are less well understood. We performed the present study to determine whether dementia diagnosed three months after stroke onset is an independent risk factor for long-term stroke recurrence. Methods: We examined 242 patients (age = 72.0 ± 8.7 years) hospitalized with acute ischemic stroke who had survived the first three months without recurrence and followed them to identify predictors of long-term stroke recurrence. We diagnosed dementia three months after stroke using modified DSM-III-R criteria based on neuropsychological and functional assessments. The effects of conventional stroke risk factors and dementia status on survival free of recurrence were estimated using Kaplan-Meier analyses, and the relative risks (RR) of recurrence were calculated using Cox proportional hazards models. Results: Dementia (RR = 2.71, 95% CI = 1.36 to 5.42); cardiac disease (RR = 2.18, CI = 1.15 to 4.12); and sex, with women at higher risk (RR = 2.03, CI = 1.01 to 4.10), were significant independent predictors of recurrence, while education (RR = 1.90, CI = 0.77 to 4.68), admission systolic blood pressure >160 mm Hg (RR = 1.80, CI = 0.94 to 3.44) and alcohol intake exceeding 160 grams per week (RR = 1.86, CI = 0.79 to 4.38) were weakly related. Conclusions: Our results suggest that dementia significantly increases the risk of long-term stroke recurrence, with additional independent contributions by cardiac disease and sex. Cognitive impairment may be a surrogate marker for multiple vascular risk factors and larger infarct volume that may serve to increase the risk of recurrence. Alternatively, less aggressive medical management of stroke patients with cognitive impairment or noncompliance of such patients with medical therapy may be bases for an increased rate of stroke recurrence.
In situ wood quality assessment in interior spruce
Creators: name: Fundová, Irena
Publisher: name: University of British Columbia
Year: 2012

description: Wood quality is of great importance for end-users but the concurrent conventional selection approaches targeted for growth rate are often associated with its decrease. The inclusion of wood quality into breeding programs requires finding a fast and inexpensive method that is capable of providing reasonably accurate estimates of wood quality attributes on standing trees without their significant injury during data collection. In the present study, wood density as the best single predictor of wood quality was estimated through drilling resistance using Resistograph IML F300; dynamic modulus of elasticity (MoEd) representing an important wood mechanical parameter was calculated from sound velocity measured by Director ST300™. Twenty-five open-pollinated families of 37- and 38-year-old interior spruce (the complex of white spruce (Picea glauca (Moench) Voss), Engelmann spruce (Picea engelmannii Parry), and their hybrids) growing on three sites (1,146 trees) were included in this study. Narrow sense heritabilities and phenotypic and genetic correlations were estimated for growth (height, diameter at breast height, and volume) and wood quality attributes (overall x-ray density, x-ray density of the first 15 rings, resistograph-based density, earlywood density, latewood density, latewood proportion, acoustic velocity, and MoEd). Phenotypic and genetic correlations were strongly related (correlation of 0.85 based on the Mantel test). As anticipated for interior spruce, growth traits were negatively correlated with wood density, but surprisingly not with MoEd. It suggests that in interior spruce selection for rapid growth would result in wood density reduction while MoE would remain unaffected, pointing at a low usefulness of MoE’s inclusion among the selection criteria. The Resistograph provided a reliable estimate of wood density of the whole profile (0.59 and 0.84 for phenotypic and genetic correlations, respectively) as well as of the first 15 rings (0.60 and 0.95, respectively) and thus demonstrated its suitability for testing young trees. Although the heritabilities for the wood quality attributes estimated by x-ray were mainly moderate (0.17–0.26), the heritability of resistograph-based density was low (0.15). The heritabilities for other traits were low to moderate. The Resistograph appears to be a reliable non-destructive tool for in situ wood density assessment in interior spruce.
Annealed Brownian motion in a heavy tailed Poissonian potential
Creators: name: Fukushima, Ryoki
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: Consider a d-dimensional Brownian motion in a random potential defined by attaching a nonnegative and polynomially decaying potential around Poisson points. We introduce a repulsive interaction between the Brownian path and the Poisson points by weighting the measure by the Feynman-Kac functional. We show that under the weighted measure, the Brownian motion tends to localize around the origin. We also determine the scaling limit of the path and also the limit shape of the random potential.
description: Published in at http://dx.doi.org/10.1214/12-AOP754 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
A myristoylated alanine-rich C-kinase substrate (MARCKS) inhibitor peptide attenuates neutrophil outside-in β2-integrin activation and signaling
Creators: name: Conley, Haleigh
name: Till, Rebecca L.
name: Berglund, Alix K.
name: Jones, Samuel L.
name: Sheats, M. Katie
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Hematology
classificationCode: 110309
subject: Infectious Diseases
subject: FOS: Health sciences
classificationCode: 60506
subject: Virology

description: MARCKS is an actin and PIP2-binding protein that plays an essential role in neutrophil migration and adhesion; however, the molecular details regarding MARCKS function in these processes remains unclear. Neutrophil adhesion and migration also require the cell surface receptors β2-integrins. We hypothesized that MARCKS inhibition would alter neutrophil β2-integrin activation and signaling. We utilized a MARCKS-targeting peptide to inhibit MARCKS in inside-out and outside-in β2-integrin activation in neutrophils. MANS-mediated MARCKS inhibition had no significant effect on inside-out β2-integrin activation. MANS treatment significantly attenuated ICAM-1/Mn2+-stimulated static adhesion, cell spreading and β2-integrin clustering, suggesting a role for MARCKS function in outside-in β2-integrin activation. Additional work is needed to better understand the molecular mechanisms of MARCKS role in outside-in β2-integrin activation and signaling.
Additional file 2 of Persistence to extended adjuvant endocrine therapy following Breast Cancer Index (BCI) testing in women with early-stage hormone receptor-positive (HR +) breast cancer
Creators: name: Foldi, Julia
name: Tsagianni, Anastasia
name: Salganik, Max
name: Schnabel, Catherine A.
name: Brufsky, Adam
name: van Londen, G. J.
name: Pusztai, Lajos
name: Sanft, Tara
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
classificationCode: 19999
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 2: Supplementary table 2. Long-term outcomes of all patients.
Construct Validity of Cognitive Reserve in a Multiethnic Cohort: The Northern Manhattan Study
Creators: name: Siedlecki, Karen L.
name: Stern, Yaakov
name: Reuben, Aaron
name: Sacco, Ralph L.
name: Elkind, Mitchell S.
name: Wright, Clinton B.
Publisher: name: Columbia University
Year: 2009
Subjects: Neurology
Neuropsychology
Cognition
Cognition in old age

description: Cognitive reserve is a hypothetical construct that has been used to inform models of cognitive aging and is presumed to be indicative of life experiences that may mitigate the effects of brain pathology. The purpose of this study was to evaluate the construct validity of cognitive reserve by examining both its convergent and its discriminant validity across three different samples of participants using structural equation modeling. The cognitive reserve variables were found to correlate highly with one another (thereby providing evidence of convergent validity), but demanding tests of discriminant validity indicated that, in two of the samples, the cognitive reserve construct was highly related to an executive functioning construct.
Colored Tensor Models - a Review
Creators: name: Gurau, Razvan
name: Ryan, James P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 05C15, 05C75, 81Q30, 81T17, 81T18, 83C27, 83C45

description: Colored tensor models have recently burst onto the scene as a promising conceptual and computational tool in the investigation of problems of random geometry in dimension three and higher. We present a snapshot of the cutting edge in this rapidly expanding research field. Colored tensor models have been shown to share many of the properties of their direct ancestor, matrix models, which encode a theory of fluctuating two-dimensional surfaces. These features include the possession of Feynman graphs encoding topological spaces, a 1/N expansion of graph amplitudes, embedded matrix models inside the tensor structure, a resumable leading order with critical behavior and a continuum large volume limit, Schwinger-Dyson equations satisfying a Lie algebra (akin to the Virasoro algebra in two dimensions), non-trivial classical solutions and so on. In this review, we give a detailed introduction of colored tensor models and pointers to current and future research directions.
Degraded Broadcast Channel with Side Information, Confidential Messages and Noiseless Feedback
Creators: name: Dai, Bin
name: Vinck, A. J. Han
name: Zhuang, Zhuojun
name: Luo, Yuan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, first, we investigate the model of degraded broadcast channel with side information and confidential messages. This work is from Steinberg's work on the degraded broadcast channel with causal and noncausal side information, and Csisz$\acute{a}$r-Körner's work on broadcast channel with confidential messages. Inner and outer bounds on the capacity-equivocation regions are provided for the noncausal and causal cases. Superposition coding and double-binning technique are used in the corresponding achievability proofs. Then, we investigate the degraded broadcast channel with side information, confidential messages and noiseless feedback. The noiseless feedback is from the non-degraded receiver to the channel encoder. Inner and outer bounds on the capacity-equivocation region are provided for the noncausal case, and the capacity-equivocation region is determined for the causal case. Compared with the model without feedback, we find that the noiseless feedback helps to enlarge the inner bounds for both causal and noncausal cases. In the achievability proof of the feedback model, the noiseless feedback is used as a secret key shared by the non-degraded receiver and the transmitter, and therefore, the code construction for the feedback model is a combination of superposition coding, Gel'fand-Pinsker's binning, block Markov coding and Ahlswede-Cai's secret key on the feedback system.
description: Part of this paper has been accepted by ISIT2012, and this paper is submitted to IEEE Transactions on Information Theory
title: Comparing trophic structure and diversity in northern ecosystems using stable isotope data
Creators: name: Ramsvatn, Silje
name: Pedersen, Torstein
name: Nilssen, Einar M.
Publisher: name: ASC 2010 - Theme session R
Year: 2024
Subjects: Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.Change in trophic level of catches has become a key indicator of fisheries impact, ecosystem structure and health. Whether because of fishing pressure, climate change or other sources to physical or biological changes in an ecosystem, we propose to use isotope metrics in comparing key species and functional groups in ecosystems across the northern hemisphere. Layman et al. (2007) suggested an interesting approach for using stable isotopes in community-wide measures to represent a species trophic role based on a bi-plot of δ13C – δ15N where they proposed 6 different metrics of food-web properties. As a case study, we attempt to use the approach of Layman to compare two northern ecosystems in Norway (Sørfjord (Nilsen et al. 2008) and Ullsfjord) with American Georges Bank (Fry 1988) and Newfoundland Labrador (Sherwood and Rose 2005) using stable isotope data. The systems exhibit similar physical and biological properties and share many of the same species.
Contrasting Visual Working Memory for Verbal and Non-Verbal Material with Multivariate Analysis of fMRI
Creators: name: Habeck, Christian G.
name: Rakitin, Brian C.
name: Steffener, Jason
name: Stern, Yaakov
Publisher: name: Columbia University
Year: 2012
Subjects: subject: Neurology
subject: Magnetic resonance imaging
subject: Neurosciences
subject: FOS: Clinical medicine
subject: Short-term memory
subject: Multivariate analysis

description: We performed a Delayed-Item-Recognition task to investigate the neural substrates of non-verbal visual working memory with event-related fMRI ('Shape task'). 25 young subjects (mean age: 24.0 years; STD=3.8 years) were instructed to study a list of either 1, 2 or 3 unnamable nonsense line drawings for 3s ('stimulus phase' or STIM). Subsequently, the screen went blank for 7s ('retention phase' or RET), and then displayed a probe stimulus for 3s in which subjects indicated with a differential button press whether the probe was contained in the studied shape-array or not ('probe phase' or PROBE). Ordinal Trend Canonical Variates Analysis (Habeck et al., 2005a) was performed to identify spatial covariance patterns that showed a monotonic increase in expression with memory load during all task phases. Reliable load-related patterns were identified in the stimulus and retention phase (p<0.01), while no significant pattern could be discerned during the probe phase. Spatial covariance patterns that were obtained from an earlier version of this task (Habeck et al., 2005b) using 1, 3, or 6 letters ('Letter task') were also prospectively applied to their corresponding task phases in the current non-verbal task version. Interestingly, subject expression of covariance patterns from both verbal and non-verbal retention phases correlated positively in the non-verbal task for all memory loads (p<0.0001). Both patterns also involved similar frontoparietal brain regions that were increasing in activity with memory load, and mediofrontal and temporal regions that were decreasing. Mean subject expression of both patterns across memory load during retention also correlated positively with recognition accuracy (d(L)) in the Shape task (p<0.005). These findings point to similarities in the neural substrates of verbal and non-verbal rehearsal processes. Encoding processes, on the other hand, are critically dependent on the to-be-remembered material, and seem to necessitate material-specific neural substrates.
UltraVISTA: a new ultra-deep near-infrared survey in COSMOS
Creators: name: McCracken, H. J.
name: Milvang-Jensen, B.
name: Dunlop, J.
name: Franx, M.
name: Fynbo, J. P. U.
name: Fèvre, O. Le
name: Holt, J.
name: Caputi, K. I.
name: Goranova, Y.
name: Buitrago, F.
name: Emerson, J.
name: Freudling, W.
name: Hudelot, P.
name: López-Sanjuan, C.
name: Magnard, F.
name: Mellier, Y.
name: Møller, P.
name: Nilsson, K. K.
name: Sutherland, W.
name: Tasca, L.
name: Zabl, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper we describe the first data release of the UltraVISTA near-infrared imaging survey of the COSMOS field. We summarise the key goals and design of the survey and provide a detailed description of our data reduction techniques . We provide stacked, sky-subtracted images in $YJHK_{\rm s}$ and narrow-band filters constructed from data collected during the first year of UltraVISTA observations. Our stacked images reach $5σ$ $AB$ depths in an aperture of $2\arcsec$ diameter of $\sim 25$ in $Y$ and $\sim 24$ in $JHK_{\rm s}$ bands and all have sub-arcsecond seeing. To this $5σ$ limit, our $K_{\rm s}$ catalogue contains 216,268 sources. We carry out a series of quality assessment tests on our images and catalogues, comparing our stacks with existing catalogues. The $1σ$ astrometric RMS in both directions for stars selected with $17.0
description: 11 pages, 15 figures, updated to match published version. Error in Fig. 15 in A&A version corrected
Conceptual and Measurement Challenges in Research on Cognitive Reserve
Creators: name: Jones, Richard
name: Manly, Jennifer J.
name: Glymour, M. Maria
name: Rentz, Dorene M.
name: Jefferson, Angela L.
name: Stern, Yaakov
Publisher: name: Columbia University
Year: 2011
Subjects: Neurology
Neuropsychology
Cognition
Latent variables

description: Cognitive reserve, broadly conceived, encompasses aspects of brain structure and function that optimize individual performance in the presence of injury or pathology. Reserve is defined as a feature of brain structure and/or function that modifies the relationship between injury or pathology and performance on neuropsychological tasks or clinical outcomes. Reserve is challenging to study for two reasons. The first is: reserve is a hypothetical construct, and direct measures of reserve are not available. Proxy variables and latent variable models are used to attempt to operationalize reserve. The second is: in vivo measures of neuronal pathology are not widely available. It is challenging to develop and test models involving a risk factor (injury or pathology), a moderator (reserve) and an outcome (performance or clinical status) when neither the risk factor nor the moderator are measured directly. We discuss approaches for quantifying reserve with latent variable models, with emphasis on their application in the analysis of data from observational studies. Increasingly latent variable models are used to generate composites of cognitive reserve based on multiple proxies. We review the theoretical and ontological status of latent variable modeling approaches to cognitive reserve, and suggest research strategies for advancing the field.
Consistency of Clinical Diagnosis in a Community-Based Longitudinal Study of Dementia and Alzheimer's Disease
Creators: name: Schofield, Peter R. W.
name: Tang, Mingxin
name: Marder, Karen
name: Bell, Karen L.
name: Dooneief, George
name: Lantigua, Rafael Antonio
name: Wilder, David
name: Gurland, Barry J.
name: Stern, Yaakov
name: Mayeux, Richard Paul
Publisher: name: Columbia University
Year: 1995
Subjects: Neurology
Alzheimer's disease
Dementia--Diagnosis
Cognition

description: We evaluated the consistency of the diagnosis of dementia in a multicultural, longitudinal community-based study of cognitive impairment and dementia. We diagnosed dementia using a fixed neuropsychological paradigm; the diagnosis also required historical evidence of functional impairment. In a sample of 656 subjects with at least one annual follow-up examination, dementia was confirmed at 1 year in 89% of the 304 subjects initially demented, and in 90% of the 136 subjects with the initial diagnosis of probable Alzheimer's disease (AD). The 34 initially demented subjects who failed to meet criteria for dementia at follow-up included 13 with an initial diagnosis of probable AD. All 34 still had evidence of cognitive impairment; this group was more likely to have a history of pulmonary disease, multiple medication use, or chronic alcohol use than other demented patients. Consistency of dementia diagnosis did not vary according to educational attainment or ethnic background. The use of a neuropsychological paradigm such as ours in large longitudinal studies of dementia may minimize interobserver diagnostic variability or diagnostic drift over time while contributing the benefits of a comprehensive cognitive evaluation to the diagnostic process.
A Physical Model of FeLoBALs: Implications for Quasar Feedback
Creators: name: Faucher-Giguere, C. -A.
name: Quataert, E.
name: Murray, N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Photoionization modeling of the low-ionization broad absorption lines of certain quasars, known as FeLoBALs, has recently revealed the number density of the wind absorbers and their distance from the central supermassive black hole. From these, the feedback efficiency of the quasars can in principle be derived. The implied properties of the FeLoBALs are, however, surprising, with the thickness of the absorbers relative to their distance from the black hole, Delta R/R, as small as ~10^-5. Such absorbers are unlikely to survive the journey from the supermassive black hole to their inferred location. We show that the observed FeLoBAL properties are readily explained if they are formed in situ in radiative shocks produced when a quasar blast wave impacts a moderately dense interstellar clump along the line of sight. This physical picture differs significantly from the thin shell approximation often assumed, and implies outflow rates, kinetic luminosities and momentum fluxes that differ correspondingly, in some cases at the order of magnitude level. Using the radiative shock model, we estimate the ratio of the outflow kinetic luminosity to bolometric luminosity for three bright FeLoBAL quasars in the literature. We find Edot/Lbol~2-5% (and corresponding momentum fluxes Pdot~2-15 Lbol/c), similar to what is adopted in models reproducing the M-sigma relation. These outflow properties are also comparable to those recently inferred for molecular outflows in local ultra-luminous infrared galaxies, suggesting that active galactic nuclei are capable of driving such outflows.
description: 9 pages, 2 figures. MNRAS, in press
D2 Final Technical Deliverable
Creators: name: Pandit, Harshvardhan J.
name: Lewis, Dave
name: Lizar, Mark
name: D'Agostino, Salvatore
name: Jesus, Vitor
name: Ammai, Shankar
name: Arshad, Junaid
Publisher: name: Zenodo
Year: 2021

description: This document represents the final (combined) deliverable for the outcomes of the Privacy as Expected: Consent Gateway (PaE:CG) project. It outlines the project’s main deliverables, which consist of: (1) a strategy and vision to offer internet users Consent Receipts and (2) software demonstrating the developed concepts.
description: NGI_Trust project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 825618.
On the six-dimensional origin of the AGT correspondence
Creators: name: Yagi, Junya
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We argue that the six-dimensional (2,0) superconformal theory defined on M \times C, with M being a four-manifold and C a Riemann surface, can be twisted in a way that makes it topological on M and holomorphic on C. Assuming the existence of such a twisted theory, we show that its chiral algebra contains a W-algebra when M = R^4, possibly in the presence of a codimension-two defect operator supported on R^2 \times C \subset M \times C. We expect this structure to survive the Ω-deformation.
description: References added. 14 pages
IMPLEMENTATION OF COMPUTER-BASED MANAGEMENT INFORMATION SYSTEM (MIS) IN MANUFACTURING ORGANIZATIONS IN NIGERIA
Creators: name: Nwekwo, Ngozi M.
Publisher: name: SADI Journals
Year: 2023
Subjects: Computer-Based
Implementation
Information
Management
System

description: The study examined the implementation of computer-based management information system (MIS) in manufacturing organizations in Nigeria. Specifically, the study sought adopted assess the extent to which the implementation of computer-based management information system in Nigerian's manufacturing organizations is significant, (ii) determine whether management capacity and resistance to change are significant to the implementation of computer-based management information system in manufacturing organizations. Survey research design was adopted in the study. Purposive sampling technique was used in the study. Data was collected using the questionnaire research instrument and oral interview guide. Both descriptive and inferential statistics were used, that is Z-test, and Linear Regression were used for data analysis, at 5% probability level of acceptance (i.e. p < 0.05). The extent computer-based management information system being implemented in Nigerian manufacturing organisations was significant (p < 0.05, Z = 6.03). management capacity to support and sustain the implementation of computer-based MIS and resistance to the implementation of newer/improved systems were significant challenges faced in the implementation of computer-based MIS in Nigerian manufacturing organisations (p < 0.05, Z = 5.48). We conclude that implementation of computer-based management information system (MIS) significant effect on manufacturing organizations in Nigeria. The study recommended that managements of manufacturing organisations should have a policy document that details the computer-based MIS framework for the organization.
Holographic Pomeron and the Schwinger Mechanism
Creators: name: Basar, Gokce
name: Kharzeev, Dmitri E.
name: Yee, Ho-Ung
name: Zahed, Ismail
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We revisit the problem of dipole-dipole scattering via exchanges of soft Pomerons in the context of holographic QCD. We show that a single closed string exchange contribution to the eikonalized dipole-dipole scattering amplitude yields a Regge behavior of the elastic amplitude; the corresponding slope and intercept are different from previous results obtained by a variational analysis of semi-classical surfaces. We provide a physical interpretation of the semi-classical worldsheets driving the Regge behavior for (-t)>0 in terms of worldsheet instantons. The latter describe the Schwinger mechanism for string pair creation by an electric field, where the longitudinal electric field E_L=σ_T tanh(χ/2) at the origin of this non-perturbative mechanism is induced by the relative rapidity χ of the scattering dipoles. Our analysis naturally explains the diffusion in the impact parameter space encoded in the Pomeron exchange; in our picture, it is due to the Unruh temperature of accelerated strings under the electric field. We also argue for the existence of a "micro-fireball" in the middle of the transverse space due to the soft Pomeron exchange, which may be at the origin of the thermal character of multiparticle production in ep/pp collisions. After summing over uncorrelated multi-Pomeron exchanges, we find that the total dipole-dipole cross section obeys the Froissart unitarity bound.
description: 17 pages, 4 figures, version 2: minor typos corrected, references added
Finite Universe and Terminal Sliding Dynamics: A Quantum Perspective-Quantum-Corrected Friedmann Dynamics
Creators: name: del Amo Castillo, Iñaki
Publisher: name: Zenodo
Year: 2025
Subjects: Finite Universe
Quantum Gravity
Terminal Sliding Effect
Cosmological Models
Avoidance of Singularities
High-Curvature Gravity
f(R) Gravity
Gauss-Bonnet Theory
Lovelock Gravity
Big Bounce Model
Geodesic Continuity
Quantum Corrections
Cosmological Observations
Numerical Simulations
Gravitational Waves
CMB Anomalies

description: I propose a novel cosmological model that introduces a dynamic sliding term into the standard Friedmann–Lemaître–Robertson–Walker (FLRW) equations. This geometric correction, derived from a variational principle, acts as a curvature-sensitive feedback mechanism that regulates the Hubble parameter's growth and ensures a singularity-free evolution of the early universe. Unlike inflationary or bounce-based models, our approach does not require scalar fields, extra dimensions, or discrete quantum structures.

The effective Lagrangian includes three key contributions: a quantum geometric term dominant at small scales, a thermodynamic damping term proportional to the expansion rate, and a sliding term linked to the time derivative of the Hubble parameter. The resulting second-order nonlinear field equations are solved numerically using an adaptive RK45 scheme.

Our simulations demonstrate that the scale factor \( a(t) \) evolves smoothly from Planck-scale initial conditions, with bounded curvature and a finite Hubble parameter at all times. The model naturally interpolates between quantum-dominated and classical regimes without singular behavior. 

Observable signatures include early-universe gravitational wave suppression, potential deviations in the tensor-to-scalar ratio, and scale-dependent modulations in the CMB power spectrum—offering clear opportunities for experimental testing with next-generation cosmological probes such as CMB-S4, LiteBIRD, and LISA.

This framework illustrates how minimal geometric extensions to general relativity can resolve deep cosmological puzzles while remaining testable and theoretically grounded.

 

contact@inakidelamo.com
Additional file 3 of Persistence to extended adjuvant endocrine therapy following Breast Cancer Index (BCI) testing in women with early-stage hormone receptor-positive (HR +) breast cancer
Creators: name: Foldi, Julia
name: Tsagianni, Anastasia
name: Salganik, Max
name: Schnabel, Catherine A.
name: Brufsky, Adam
name: van Londen, G. J.
name: Pusztai, Lajos
name: Sanft, Tara
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
classificationCode: 19999
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 3: Supplementary table 3. Distant breast cancer recurrences (n=6).
Design of a persuasive recommendation agent to promote environmentally friendly products
Creators: name: Yu, Tian
Publisher: name: University of British Columbia
Year: 2012

description: This study focuses on designing a product recommendation agent (PRA) that would persuade its users to purchase environmentally preferable products. To develop such a PRA, the literature on subjects including “green” consumption, persuasion, and persuasive technology is reviewed. After considering the challenges to inducing “green” behaviours and leveraging many persuasive technologies, we employ the attributes trade-offs transparency tool to facilitate users’ understanding of “green” products. We also utilize the conditioning mechanism through the associative or propositional process in the persuasive design. This mechanism aims to elicit users’ implicit or explicit “green” attitudes, which generate “green” behaviours. An experiment with 180 participants was conducted to test the effectiveness of the conditioning mechanism of the persuasive design. The participants were asked to perform a shopping task and give feedback on their experience. Their preferred product attributes, product choices, and “green” attitudes were recorded. The experiment showed that the conditioning mechanism greatly predisposed the participants toward “greenness” through the associative process. As a result, it successfully persuaded them to have a “greener” attitude and choose “greener” products, whether the purchasing task required a sustainable product or not. In addition, participants indicated higher perceptions on PRAs with the persuasive design.
Finite Universe and Terminal Sliding Dynamics: A Quantum Perspective
Creators: name: del Amo Castillo, Iñaki
Publisher: name: Zenodo
Year: 2024
Subjects: Finite Universe
Quantum Gravity
Terminal Sliding Effect
Cosmological Models
Avoidance of Singularities
High-Curvature Gravity
f(R) Gravity
Gauss-Bonnet Theory
Lovelock Gravity
Big Bounce Model
Geodesic Continuity
Quantum Corrections
Cosmological Observations
Numerical Simulations
Gravitational Waves
CMB Anomalies

description: This paper presents a detailed exploration of the concept of a finite universe with a terminal sliding effect at its boundaries. Unlike traditional cosmological models, which often lead to singularities or assume infinite expansion, the proposed approach here incorporates quantum corrections to the curvature of space-time at the boundaries of the finite universe. These corrections result in a continuous sliding effect rather than an abrupt end, thus avoiding classical singularities. The model introduces a new interpretation of how the universe can evolve without singularities, providing a physically coherent and plausible boundary condition.

The paper also addresses previous criticisms regarding the scientific novelty and importance of the approach, linking the model with high-curvature gravity theories such as f(R), Gauss-Bonnet, and Lovelock theories. Numerical simulations and empirical validation strategies are presented to demonstrate the viability of the model. The results show the model's capability to avoid curvature divergences and propose a universe that evolves in a stable manner without discontinuities at its boundaries.

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Shuffle algebras, homology, and consecutive pattern avoidance
Creators: name: Dotsenko, Vladimir
name: Khoroshkin, Anton
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 05E15 (Primary), 05A05, 05A15, 05A16, 16E05, 18G10 (Secondary)

description: Shuffle algebras are monoids for an unconvential monoidal category structure on graded vector spaces. We present two homological results on shuffle algebras with monomial relations, and use them to prove exact and asymptotic results on consecutive pattern avoidance in permutations.
description: 24 pages. This paper supersedes the paper arxiv:1002.2761
Finite Universe and Terminal Sliding Dynamics: A Quantum Perspective
Creators: name: del Amo Castillo, Iñaki
Publisher: name: Zenodo
Year: 2024
Subjects: Finite Universe
Quantum Gravity
Terminal Sliding Effect
Cosmological Models
Avoidance of Singularities
High-Curvature Gravity
f(R) Gravity
Gauss-Bonnet Theory
Lovelock Gravity
Big Bounce Model
Geodesic Continuity
Quantum Corrections
Cosmological Observations
Numerical Simulations
Gravitational Waves
CMB Anomalies

description: Singularities and abrupt boundaries challenge the completeness of standard cosmological models rooted in General Relativity (GR). These unresolved issues, such as the Big Bang singularity and black hole interiors, highlight the need for modifications in extreme curvature regimes. In this work, we propose a minimal yet effective extension to the Friedmann equations, introducing two corrective terms: a quantum correction proportional to 1/a6, which dominates in high-curvature regimes, and a dynamic smoothing term proportional to ˙a2, which stabilizes geodesic trajectories. These corrections regularize curvature invariants, ensure geodesic continuity, and lead to a smooth, non-singular expansion. Numerical simulations show that the corrected model aligns with key cosmological observations, including the Cosmic Microwave Background (CMB), large-scale structure, and gravitational wave spectra. Moreover, it predicts distinct observational signatures, such as modifications in the matter power spectrum and high-frequency features in the gravitational wave background, testable with upcoming missions like CMB-S4, Euclid, and LISA. This framework offers a consistent and testable alternative to current paradigms, bridging theoretical advancements with observational physics.

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Additional file 4 of Persistence to extended adjuvant endocrine therapy following Breast Cancer Index (BCI) testing in women with early-stage hormone receptor-positive (HR +) breast cancer
Creators: name: Foldi, Julia
name: Tsagianni, Anastasia
name: Salganik, Max
name: Schnabel, Catherine A.
name: Brufsky, Adam
name: van Londen, G. J.
name: Pusztai, Lajos
name: Sanft, Tara
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
classificationCode: 19999
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 4: Supplementary figure 1. Sankey diagram illustrating the reasons for discontinuing ET in 94 patients with high likelihood of benefit from EET [(H/I)-high].
Comparison of Cognitive Changes in Patients with Alzheimer's and Parkinson's Disease
Creators: name: Stern, Yaakov
name: Richards, Marcus
name: Sano, Mary
name: Mayeux, Richard Paul
Publisher: name: Columbia University
Year: 1993
Subjects: Neurology
Parkinson's disease
Cognition
Alzheimer's disease--Patients

description: Objective. —To compare cognitive changes in the dementias of Parkinson's disease (PD) and Alzheimer's disease (AD). Design. —Case series, group comparisons. Setting. —Ambulatory care referral center. Patients. —Consecutive sample of 14 patients with PD dementia and 27 with probable AD matched for overall intellectual function using a mental status test, as well as 1 nondemented PD and 12 mild probable AD patients, similarly matched for overall intellectual function. All demented patients met Diagnostic and Statistical Manual, Revised Third Edition, criteria for dementia. Main Outcome Measures. —Performance on a battery of neuropsychological tests assessing verbal and nonverbal memory, verbal fluency, and constructional ability. Results. —Nondemented and demented patients with PD performed worse than their probable AD comparison groups on verbal fluency and visuospatial tasks. Cognitive changes attributable to dementia were similar in PD and probable AD but were not identical. The patients with probable AD demonstrated more marked change in memory performance with delay. Conclusions. —Our findings suggest that when dementia occurs in PD it is overlaid on cognitive changes that already exist in nondemented patients but that the dementing process in PD involves systems other than those responsible for cognitive change in nondemented PD patients. We hypothesize that in most cases, dementia in PD involves changes in a nondopaminergic neurotransmitter system but is not due to concomitant AD.
Comparison of Patient and Caregiver Reports of Patient Activity Participation and Its Relationship to Mental Health in Patients with Alzheimer's Disease
Creators: name: Siedlecki, Karen L.
name: Tatarina-Nulman, Oksana
name: Sanders, Linda
name: Albert, Marilyn
name: Blacker, Deborah
name: Dubois, Bruno
name: Brandt, Jason
name: Stern, Yaakov
Publisher: name: Columbia University
Year: 2009
Subjects: Neurology
Patient participation
Alzheimer's disease--Patients
Gerontology
Caregivers

description: The relationship between engagement in pleasant activities as rated by the patient and as rated by the caregiver from the patient's perspective was examined using structural equation modeling in a sample of patients (N = 277) diagnosed with mild to moderate Alzheimer's disease. The two activity participation ratings were only moderately related to one another. Furthermore, depression was the only significant predictor of the patient-rated activity participation, whereas severity of depression, degree of personality change, level of dependence, and cognition were all significant predictors of caregiver-rated activity participation. These findings suggest that caregivers consider a wider range of variables when evaluating the patient's engagement in activities than does the patient. Predictors of patient-rated activity participation did not differ as a function of age or cognition.
Finite Universe and Terminal Sliding Dynamics: A Quantum Perspective-Quantum-Corrected Friedmann Dynamics
Creators: name: del Amo Castillo, Iñaki
Publisher: name: Zenodo
Year: 2025
Subjects: Finite Universe
Quantum Gravity
Terminal Sliding Effect
Cosmological Models
Avoidance of Singularities
High-Curvature Gravity
f(R) Gravity
Gauss-Bonnet Theory
Lovelock Gravity
Big Bounce Model
Geodesic Continuity
Quantum Corrections
Cosmological Observations
Numerical Simulations
Gravitational Waves
CMB Anomalies

description: Singularities and abrupt boundaries challenge the completeness of standard cosmological models rooted in General Relativity (GR). These unresolved issues, such as the Big Bang singularity and black hole interiors, highlight the need for modifications in extreme curvature regimes. In this work, we propose a minimal yet effective extension to the Friedmann equations, introducing two corrective terms: a quantum correction proportional to 1/a6, which dominates in high-curvature regimes, and a dynamic smoothing term proportional to ˙a2, which stabilizes geodesic trajectories. These corrections regularize curvature invariants, ensure geodesic continuity, and lead to a smooth, non-singular expansion. Numerical simulations show that the corrected model aligns with key cosmological observations, including the Cosmic Microwave Background (CMB), large-scale structure, and gravitational wave spectra. Moreover, it predicts distinct observational signatures, such as modifications in the matter power spectrum and high-frequency features in the gravitational wave background, testable with upcoming missions like CMB-S4, Euclid, and LISA. This framework offers a consistent and testable alternative to current paradigms, bridging theoretical advancements with observational physics.

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REBOUND: An open-source multi-purpose N-body code for collisional dynamics
Creators: name: Rein, Hanno
name: Liu, Shang-Fei
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Dynamical Systems (math.DS)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: REBOUND is a new multi-purpose N-body code which is freely available under an open-source license. It was designed for collisional dynamics such as planetary rings but can also solve the classical N-body problem. It is highly modular and can be customized easily to work on a wide variety of different problems in astrophysics and beyond. REBOUND comes with three symplectic integrators: leap-frog, the symplectic epicycle integrator (SEI) and a Wisdom-Holman mapping (WH). It supports open, periodic and shearing-sheet boundary conditions. REBOUND can use a Barnes-Hut tree to calculate both self-gravity and collisions. These modules are fully parallelized with MPI as well as OpenMP. The former makes use of a static domain decomposition and a distributed essential tree. Two new collision detection modules based on a plane-sweep algorithm are also implemented. The performance of the plane-sweep algorithm is superior to a tree code for simulations in which one dimension is much longer than the other two and in simulations which are quasi-two dimensional with less than one million particles. In this work, we discuss the different algorithms implemented in REBOUND, the philosophy behind the code's structure as well as implementation specific details of the different modules. We present results of accuracy and scaling tests which show that the code can run efficiently on both desktop machines and large computing clusters.
description: 10 pages, 9 figures, accepted by A&A, source code available at https://github.com/hannorein/rebound
Classical simulation of measurement-based quantum computation on higher-genus surface-code states
Creators: name: Goff, Leonard
name: Raussendorf, Robert
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the efficiency of classically simulating measurement-based quantum computation on surface-code states. We devise a method for calculating the elements of the probability distribution for the classical output of the quantum computation. The operational cost of this method is polynomial in the size of the surface-code state, but in the worst case scales as $2^{2g}$ in the genus $g$ of the surface embedding the code. However, there are states in the code space for which the simulation becomes efficient. In general, the simulation cost is exponential in the entanglement contained in a certain effective state, capturing the encoded state, the encoding and the local post-measurement states. The same efficiencies hold, with additional assumptions on the temporal order of measurements and on the tessellations of the code surfaces, for the harder task of sampling from the distribution of the computational output.
description: 21 pages, 13 figures