cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Lateralized hippocampal oscillations underlie distinct aspects of human spatial memory and navigation
Creators: name: Miller, Jonathan F
name: Watrous, Andrew J.
name: Tsitsiklis, Melina Eirene
name: Lee, Sang Ah
name: Sheth, Sameer A.
name: Schevon, Catherine
name: Smith, Elliot Hansen
name: Sperling, Michael R.
name: Sharan, Ashwini
name: Asadi-Pooya, Ali Akbar
name: Worrell, Gregory A.
name: Meisenhelter, Stephen
name: Inman, Cory S.
name: Davis, Kathryn A.
name: Lega, Bradley
name: Wanda, Paul A.
name: Das, Sandhitsu R.
name: Stein, Joel M.
name: Gorniak, Richard
name: Jacobs, Joshua
Publisher: name: Columbia University
Year: 2018
Subjects: Memory
Spatial behavior
Hippocampus (Brain)
Theta rhythm

description: The hippocampus plays a vital role in various aspects of cognition including both memory and spatial navigation. To understand electrophysiologically how the hippocampus supports these processes, we recorded intracranial electroencephalographic activity from 46 neurosurgical patients as they performed a spatial memory task. We measure signals from multiple brain regions, including both left and right hippocampi, and we use spectral analysis to identify oscillatory patterns related to memory encoding and navigation. We show that in the left but not right hippocampus, the amplitude of oscillations in the 1–3-Hz “low theta” band increases when viewing subsequently remembered object–location pairs. In contrast, in the right but not left hippocampus, low-theta activity increases during periods of navigation. The frequencies of these hippocampal signals are slower than task-related signals in the neocortex. These results suggest that the human brain includes multiple lateralized oscillatory networks that support different aspects of cognition.
Different population dynamics in the supplementary motor area and motor cortex during reaching
Creators: name: Lara, Antonio Homero
name: Cunningham, James P.
name: Churchland, Mark M.
Publisher: name: Columbia University
Year: 2018
Subjects: Motor cortex
Memory--Physiological aspects
Brain--Physiology
Visual perception--Data processing
Sensory stimulation
Neurology

description: Neural populations perform computations through their collective activity. Different computations likely require different population-level dynamics. We leverage this assumption to examine neural responses recorded from the supplementary motor area (SMA) and motor cortex. During visually guided reaching, the respective roles of these areas remain unclear; neurons in both areas exhibit preparation-related activity and complex patterns of movement-related activity. To explore population dynamics, we employ a novel “hypothesis-guided” dimensionality reduction approach. This approach reveals commonalities but also stark differences: linear population dynamics, dominated by rotations, are prominent in motor cortex but largely absent in SMA. In motor cortex, the observed dynamics produce patterns resembling muscle activity. Conversely, the non-rotational patterns in SMA co-vary with cues regarding when movement should be initiated. Thus, while SMA and motor cortex display superficially similar single-neuron responses during visually guided reaching, their different population dynamics indicate they are likely performing quite different computations.
Theoretical estimates of cross sections for neutron-nucleus collisions
Creators: name: Mukhopadhyay, Tapan
name: Lahiri, Joydev
name: Basu, D. N.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We construct an analytical model derived from nuclear reaction theory and having a simple functional form to demonstrate the quantitative agreement with the measured cross sections for neutron induced reactions. The neutron-nucleus total, reaction and scattering cross sections, for energies ranging from 5 to 700 MeV and for several nuclei spanning a wide mass range are estimated. Systematics of neutron scattering cross sections on various materials for neutron energies upto several hundred MeV are important for ADSS applications. The reaction cross sections of neutrons are useful for determining the neutron induced fission yields in actinides and pre-actinides. The present model based on nuclear reaction theory provides good estimates of the total cross section for neutron induced reaction.
description: 25 pages including 16 figures
Contact Homology of Orbit Complements and Implied Existence
Creators: name: Momin, Al
Publisher: name: arXiv
Year: 2010
Subjects: subject: Symplectic Geometry (math.SG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: For Reeb vector fields on closed 3-manifolds, cylindrical contact homology is used to show that the existence of a set of closed Reeb orbit with certain knotting/linking properties implies the existence of other Reeb orbits with other knotting/linking properties relative to the original set. We work out a few examples on the 3-sphere to illustrate the theory, and describe an application to closed geodesics on $S^2$ (a version of a result due to Angenent).
description: Section 5 was removed, as well as any assertions in the main theorems which depend on it. Changes to introduction, several typos corrected
Additional file 1 of Differences in collaboration structures and impact among prominent researchers in Europe and North America
Creators: name: Danús, Lluís
name: Muntaner, Carles
name: Krauss, Alexander
name: Sales-Pardo, Marta
name: Guimerà, Roger
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Molecular Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Plant Biology

description: Supplementary materials: Figs. S1 to S12 and Tables S1 and S2 (PDF 8.2 MB)
An Implicit Scheme for Ohmic Dissipation with Adaptive Mesh Refinement
Creators: name: Matsumoto, Tomoaki
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: An implicit method for the ohmic dissipation is proposed. The proposed method is based on the Crank-Nicolson method and exhibits second-order accuracy in time and space. The proposed method has been implemented in the SFUMATO adaptive mesh refinement (AMR) code. The multigrid method on the grids of the AMR hierarchy converges the solution. The convergence is fast but depends on the time step, resolution, and resistivity. Test problems demonstrated that decent solutions are obtained even at the interface between fine and coarse grids. Moreover, the solution obtained by the proposed method shows good agreement with that obtained by the explicit method, which required many time steps. The present method reduces the number of time steps, and hence the computational costs, as compared with the explicit method.
description: Accepted for publication in PASJ. 8 pages, 11 figures
Light Z' Bosons at the Tevatron
Creators: name: Buckley, Matthew R.
name: Hooper, Dan
name: Kopp, Joachim
name: Neil, Ethan
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: New gauge bosons with Standard Model-like couplings to leptons are constrained by collider searches to be heavier than approximately ~1 TeV. A Z' boson with suppressed couplings to leptons, however, could be much lighter and possess substantial couplings to Standard Model quarks. In this article, we consider a new leptophobic Z' gauge boson as a simple and well motivated extension of the Standard Model, and discuss several of its possible signatures at the Tevatron. We find that three of the recent anomalies reported from the Tevatron - in particular the top-quark forward-backward asymmetry and excesses in the 3b and W + 2 jets final states - could be explained by a new Z' with a mass of approximately 150 GeV, relatively large couplings to quarks, and suppressed couplings to electrons and muons. Moreover, we find that such a particle could also mediate the interactions of dark matter, leading to potentially interesting implications for direct detection experiments.
description: 12 pages, 7 figures. v2, v3: updated references. v4: updated to match published version, including minor revisions to figures 1 and 3
Locally Homogeneous Spaces, Induced Killing Vector Fields and Applications to Bianchi Prototypes
Creators: name: Papadopoulos, G. O.
name: Grammenos, Th.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 83C05, 83C15, 83C20, 53B20, 53C30, 58J70, 22E65, 22E70

description: An answer to the question: Can, in general, the adoption of a given symmetry induce a further symmetry, which might be hidden at a first level? has been attempted in the context of differential geometry of locally homogeneous spaces. Based on E. Cartan's theory of moving frames, a methodology for finding all symmetries for any n dimensional locally homogeneous space is provided. The analysis is applied to 3 dimensional spaces, whereby the embedding of them into a 4 dimensional Lorentzian manifold is examined and special solutions to Einstein's field equations are recovered. The analysis is mainly of local character, since the interest is focused on local structures based on differential equations (and their symmetries), rather than on the implications of, e.g., the analytic continuation of their solution(s) and their dynamics in the large.
description: 27 pages, no figues, no tables, one reference added, spelling and punctuation issues corrected
IO500 Full Ranked List, Supercomputing 2018 (Corrected)
Creators: name: Bent, John
name: Kunkel, Julian
name: Lofstead, Jay
name: Markomanolis, George
Publisher: name: Zenodo
Year: 2018
Subjects: IO500

description: The IO500 Benchmark publishes twice annual ranked lists of all submissions.  This list was first published at the 2018 SC conference but has been corrected to fix a reporting bug in some of the metadata scores.
description: http://io500.org/list/19-01/start
Additional file 1 of “Platelet-Rich Plasma” epidural injection an emerging strategy in lumbar disc herniation: a Randomized Controlled Trial
Creators: name: Wongjarupong, Asarn
name: Pairuchvej, Saran
name: Laohapornsvan, Panyajarn
name: Kotheeranurak, Vit
name: Jitpakdee, Khanathip
name: Yeekian, Chunrutai
name: Chanplakorn, Pongsthorn
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 1
Changes in the gradient percolation transition caused by an Allee effect
Creators: name: Gastner, Michael T.
name: Oborny, Beata
name: Ryabov, Alexey B.
name: Blasius, Bernd
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The establishment and spreading of biological populations depends crucially on population growth at low densities. The Allee effect is a problem in those populations where the per-capita growth rate at low densities is reduced. We examine stochastic spatial models in which the reproduction rate changes across a gradient g so that the population undergoes a 2D-percolation transition. Without the Allee effect, the transition is continuous and the width w of the hull scales as in conventional (i.e., uncorrelated) gradient percolation, proportional to g^(-0.57). However, with a strong Allee effect the transition is first order and w is proportional to g^(-0.26).
description: 4 pages, 4 figures, Phys. Rev. Lett., in print, supplementary material available at http://www2.imperial.ac.uk/~mgastner/publications/suppl_PRL_Jan11.pdf
Additional file 1 of Association of complication of type 2 diabetes mellitus with hemodynamics and exercise capacity in patients with heart failure with preserved ejection fraction: a case–control study in individuals aged 65–80 years
Creators: name: Sugita, Yousuke
name: Ito, Katsuhiko
name: Yoshioka, Yui
name: Sakai, Satoshi
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Detailed information about Materials and Methods.
Mechanism and resistance for antimycobacterial activity of a fluoroquinophenoxazine compound
Creators: name: Garcia, Pamela K.
name: Annamalai, Thirunavukkarasu
name: Wang, Wenjie
name: Bell, Raven S.
name: Le, Duc
name: Martin Pancorbo, Paula
name: Sikandar, Sabah
name: Seddek, Ahmed
name: Yu, Xufen
name: Sun. Dianqing
name: Uhlemann, Anne-Catrin
name: Tiwari, Purushottam B.
name: Leng, Fenfei
name: Tse-Dinh, Yuk-Ching
Publisher: name: Columbia University
Year: 2019
Subjects: Mycobacterium
DNA topoisomerase I
Molecular biology

description: We have previously reported the inhibition of bacterial topoisomerase I activity by a fluoroquinophenoxazine compound (FP-11g) with a 6-bipiperidinyl lipophilic side chain that exhibited promising antituberculosis activity (MIC = 2.5 μM against Mycobacterium tuberculosis, SI = 9.8). Here, we found that the compound is bactericidal towards Mycobacterium smegmatis, resulting in greater than 5 Log10 reduction in colony-forming units [cfu]/mL following a 10 h incubation at 1.25 μM (4X MIC) concentration. Growth inhibition (MIC = 50 μM) and reduction in cfu could also be observed against a clinical isolate of Mycobacterium abscessus. Stepwise isolation of resistant mutants of M. smegmatis was conducted to explore the mechanism of resistance. Mutations in the resistant isolates were identified by direct comparison of whole-genome sequencing data from mutant and wild-type isolates. These include mutations in genes likely to affect the entry and retention of the compound. FP-11g inhibits Mtb topoisomerase I and Mtb gyrase with IC50 of 0.24 and 27 μM, respectively. Biophysical analysis showed that FP-11g binds DNA as an intercalator but the IC50 for inhibition of Mtb topoisomerase I activity is >10 fold lower than the compound concentrations required for producing negatively supercoiled DNA during ligation of nicked circular DNA. Thus, the DNA-binding property of FP-11g may contribute to its antimycobacterial mechanism, but that alone cannot account for the observed inhibition of Mtb topoisomerase I.
Ion Concentration Dynamics as a Mechanism for Neuronal Bursting
Creators: name: Barreto, Ernest
name: Cressman, John R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cell Behavior (q-bio.CB)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Biological sciences

description: We describe a simple conductance-based model neuron that includes intra- and extra-cellular ion concentration dynamics and show that this model exhibits periodic bursting. The bursting arises as the fast spiking behavior of the neuron is modulated by the slow oscillatory behavior in the ion concentration variables, and vice versa. By separating these time scales and studying the bifurcation structure of the neuron, we catalog several qualitatively different bursting profiles that are strikingly similar to those seen in experimental preparations. Our work suggests that ion concentration dynamics may play an important role in modulating neuronal excitability in real biological systems.
description: The most recent version now contains citation information: Journal of Biological Physics 37, 361-373 (2011)
Spectral and algebraic instabilities in thin Keplerian discs under poloidal and toroidal magnetic fields
Creators: name: Shtemler, Yuri M.
name: Mond, Michael
name: Liverts, Edward
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Linear instability of two equilibrium configurations with either poloidal (I) or toroidal (II) dominant magnetic field components are studied in thin vertically-isothermal Keplerian discs. Solutions of the stability problem are found explicitly by asymptotic expansions in the small aspect ratio of the disc. In both equilibrium configurations the perturbations are decoupled into in-plane and vertical modes. For equilibria of type I those two modes are the Alfvén-Coriolis and sound waves, while for equilibria of type II they are the inertia-Coriolis and magnetosonic waves. Exact expressions for the growth rates as well as the number of unstable modes for type I equilibria are derived. Those are the discrete counterpart of the continuous infinite homogeneous cylinder magnetorotational (MRI) spectrum. It is further shown that the axisymmetric MRI is completely suppressed by dominant toroidal magnetic fields (i.e. equilibria of type II). This renders the system prone to either non-axisymmetric MRI or non-modal algebraic growth mechanisms. The algebraic growth mechanism investigated in the present study occurs exclusively due to the rotation shear, generates the inertia-Coriolis driven magnetosonic modes due to non-resonant or resonant coupling that induces, respectively, linear or quadratic temporal growth of the perturbations.
description: correction of typos
Engineering interband transport by time-dependent disorder
Creators: name: Tayebirad, Ghazal
name: Mannella, Riccardo
name: Wimberger, Sandro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show how the evolution of atoms in a tilted lattice can be changed and controlled by phase noise on the lattice. Dependent on the characteristic parameters of the noise, the interband transport can either be suppressed or enhanced, which is of interest for high precision control in experimental realization with Bose-Einstein condensates. The effect of the noise on the survival probability in the ground band is summarized in a scaling plot stressing the universality of our results.
A comparative study of glaciovolcanic palagonitization of tholeiitic and alkaline sideromelane in Helgafell, Iceland and Wells Gray-Clearwater Volcanic Field, BC, Canada
Creators: name: Massey, Erica A.
Publisher: name: University of British Columbia
Year: 2017

description: Pleistocene glaciovolcanic eruptions occurred frequently beneath continental-scale ice sheets producing vitric, fragmental volcanic deposits in Helgafell, Iceland (tholeiitic basalt) and Wells Gray, BC, Canada (alkali olivine basalt). They are highly susceptible to hydrothermal alteration that transforms sideromelane (basaltic volcanic glass) into palagonite (early amorphous material) and secondary minerals (i.e. zeolites, clays and sulfides). Compositional controls, mass transfer and geochemical-textural relationships are investigated by optical microscopy and analyses of major (12) and trace (32) elements in glass-palagonite pairs by Electron Microprobe Analysis (EMPA), Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS), and geochemical modelling. Helgafell’s thinner (6-10 m vs. 10-20 m) palagonite rims demarcate highly vesicular (30.2% vs. 4.9%) sideromelane that has more secondary minerals (1.4% vs. 0.5%) than Wells Gray’s microlite-rich (12.3% vs. 0.1%) sideromelane. The thicknesses of palagonite rims are similar whether the sideromelane is unaltered or completely altered. Multi-dimensional scaling confirms that sideromelane composition, reflecting igneous processes, strongly controls the chemistry of palagonite. A comparison of element behavior in the palagonite from both localities reveals a tendency for water-soluble cations (Cl, K, Na, Rb, Cu, Mn, P) to correlate with water concentrations. Plots of element ratios (Nb/Y vs La/Nd; Sc/Ta vs Zr/Th) calculated from “immobile” elements show that palagonite from Wells Gray and Helgafell are distinct, and have ratios that are similar to sideromelane that produced the palagonite. Thus some palagonite compositions reflect primary magma compositions based on immobile elements. Gresens mass transfer calculations confirm minimal movement of these elements during palagonitization. However, the same calculations reveal a pattern of Cu, Cl, Ni, Rb and U addition and Na, Ca, Mg, P, V and Mn removal that is similar at both localities. Microprobe traverses identified eight prominent trends across the glass-palagonite interface and palagonite rim, which do not appear to be controlled by sideromelane composition. Several element concentrations decrease in palagonite, including Si (by ~3-10%), Al, Ca and Na, while Ti, Fe and Mg concentrations increase. Locally, the palagonite has an inner Ti-rich zone. The gradual increase in Mg across the palagonite rim may be indicative of changes in solubility and pH.
Cloud Radio Access Networks, Distributed Information Bottleneck, and more: A Unified Information Theoretic View
Creators: name: Shamai, Shlomo
name: Aguerri, Inaki Estella
name: Zaidi, Abdellatif
name: Caire, Giuseppe
Publisher: name: Zenodo
Year: 2018

description: Workshop on Coding, Cooperation, and Security in Modern Communication Networks, 10 December, 2018, EE Dept., Technion, Israel
Separation induced resonances in quasi-one-dimensional ultracold atomic gases
Creators: name: Fu, Wenbo
name: Yu, Zhenhua
name: Cui, Xiaoling
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study the effective one-dimensional (1D) scattering of two distinguishable atoms confined individually by {\em separated} transverse harmonic traps. With equal trapping frequency for two s-wave interacting atoms, we find that by tuning the trap separations, the system can undergo {\em double} 1D scattering resonance, named as the separation induced resonance(SIR), when the ratio between the confinement length and s-wave scattering length is within $(0.791,1.46]$. Near SIR, the scattering property shows unique dependence on the resonance position. The universality of a many-body system on scattering branch near SIR is demonstrated by studying the interaction effect of a localized impurity coupled with a Fermi sea of light atoms in a quasi-1D trap.
description: 8 pages, 6 figures, published version
A noncommutative approach to the cosmological constant problem
Creators: name: Garattini, Remo
name: Nicolini, Piero
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we study the cosmological constant emerging from the Wheeler-DeWitt equation as an eigenvalue of the related Sturm-Liouville problem. We employ Gaussian trial functionals and we perform a mode decomposition to extract the transverse-traceless component, namely, the graviton contribution, at one loop. We implement a noncommutative-geometry- induced minimal length to calculate the number of graviton modes. As a result, we find regular graviton fluctuation energies for the Schwarzschild, de Sitter, and anti-de Sitter backgrounds. No renormalization scheme is necessary to remove infinities, in contrast to what happens in conventional approaches.
description: 9 pages, 1 figure, version matching that published on PRD
Dynamical Hartree-Fock-Bogoliubov Theory of Vortices in Bose-Einstein Condensates at Finite Temperature
Creators: name: Wild, B. G.
name: Hutchinson, D. A. W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We present a method utilizing the continuity equation for the condensate density to make predictions of the precessional frequency of single off-axis vortices and of vortex arrays in Bose-Einstein condensates at finite temperature. We also present an orthogonalized Hartree-Fock-Bogoliubov (HFB) formalism. We solve the continuity equation for the condensate density self-consistently with the orthogonalized HFB equations, and find stationary solutions in the frame rotating at this frequency. As an example of the utility of this formalism we obtain time-independent solutions for quasi-two-dimensional rotating systems in the co-rotating frame. We compare these results with time-dependent predictions where we simulate stirring of the condensate.
description: 13 pages, 11 figures, 1 table
Additional file 1 of COPD exacerbations and patient-reported outcomes according to post-bronchodilator FEV1 – a post-hoc analysis of pooled data
Creators: name: Chai, Chee-Shee
name: Ng, Diana-Leh-Ching
name: Bt Mos, Sumastika
name: Ibrahim, Muhammad Amin B
name: Tan, Seng-Beng
name: Pang, Yong-Kek
name: Liam, Chong-Kin
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: FOS: Biological sciences

description: Supplementary Material 1
Find the Words: Helping Students Develop Better Clinical Skills
Creators: name: Shear, Katherine
name: Garay, Kristin
name: Marquart, Matthea S.
Publisher: name: Columbia University
Year: 2019
Subjects: Social work education
Social workers--Training of
Evidence-based social work
Web-based instruction
Instructional systems--Design

description: On March 12, 2019, Katherine Shear, Marion E. Kenworthy Professor of Psychiatry in Social Work, Kristin Garay, and Matthea Marquart will present at the Columbia University Center for Teaching and Learning's 2019 Celebration of Teaching and Learning Symposium, as part of the Interactive Showcase of Teaching Innovations.  Their poster, "Find the Words: Helping Students Develop Better Clinical Skills," will share the teaching innovation developed during Professor Shear's Fall 2018 online Introduction to Grief Therapy course, which she redesigned with a 2018 Teaching & Learning Grant for Hybrid Learning Course Redesign and Delivery from the Office of the Provost.
Gravastars and Black Holes of Anisotropic Dark Energy
Creators: name: Chan, R.
name: da Silva, M. F. A.
name: Rocha, P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Dynamical models of prototype gravastars made of anisotropic dark energy are constructed, in which an infinitely thin spherical shell of a perfect fluid with the equation of state $p = (1-γ)σ$ divides the whole spacetime into two regions, the internal region filled with a dark energy fluid, and the external Schwarzschild region. The models represent "bounded excursion" stable gravastars, where the thin shell is oscillating between two finite radii, while in other cases they collapse until the formation of black holes. Here we show, for the first time in the literature, a model of gravastar and formation of black hole with both interior and thin shell constituted exclusively of dark energy. Besides, the sign of the parameter of anisotropy ($p_t - p_r$) seems to be relevant to the gravastar formation. The formation is favored when the tangential pressure is greater than the radial pressure, at least in the neighborhood of the isotropic case ($ω=-1$).
description: 16 pages, 8 figures. Accepted for publication in Gen. Rel. Grav
Additional file 1 of What is the utility of blood beta-hydroxybutyrate measurements in emergency department in patients without diabetes: a systematic review
Creators: name: Hui, Su An
name: Chiew, Angela Lin
name: Depczynski, Barbara
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Search strategy. Table 3. Risk of bias using Newcastle-Ottawa Scale. Table 4. Certainty assessment based on outcomes.
Congruences for central binomial sums and finite polylogarithms
Creators: name: Mattarei, Sandro
name: Tauraso, Roberto
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We prove congruences, modulo a power of a prime p, for certain finite sums involving central binomial coefficients $\binom{2k}{k}$.
Receiver Operating Characteristic (ROC) Area Under the Curve (AUC): A Diagnostic Measure for Evaluating the Accuracy of Predictors of Education Outcomes
Creators: name: Bowers, Alex J.
name: Zhou, Xiaoliang
Publisher: name: Columbia University
Year: 2019
Subjects: Educational statistics--Data processing
Dropout behavior, Prediction of
Educational attainment
Signal detection
Receiver operating characteristic curves

description: Early Warning Systems (EWS) and Early Warning Indictors (EWI) have recently emerged as an attractive domain for states and school districts interested in predicting student outcomes using data that schools already collect with the intention to better time and tailor interventions. However, current diagnostic measures used across the domain do not consider the dual issues of sensitivity and specificity of predictors, key components for considering accuracy. We apply signal detection theory using Receiver Operating Characteristic (ROC) Area Under the Curve (AUC) analysis adapted from the engineering and medical domains, and using the pROC package in R. Using nationally generalizable data from the Education Longitudinal Study of 2002 (ELS:2002) we provide examples of applying ROC accuracy analysis to a variety of predictors of student outcomes, such as dropping out of high school, college enrollment, and postsecondary STEM degrees and careers.

Keywords: ROC, AUC, Early Warning System, Early Warning Indicator, signal detection theory, dropout, college enrollment, Postsecondary STEM Degree, hard STEM career, soft STEM career
Additional file 1 of Mental health-related telemedicine interventions for pregnant women and new mothers: a systematic literature review
Creators: name: Stentzel, Ulrike
name: Grabe, Hans J.
name: Schmidt, Silke
name: Tomczyk, Samuel
name: van den Berg, Neeltje
name: Beyer, Angelika
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Telemedical interventions for mentally stressed, pregnant women and young mothers: protocol for a systematic literature review.
A quantitative exploration of gastrointestinal bleeding in intensive care unit patients
Creators: name: Eschenfeldt, Patrick C.
name: Hur, Chin
Publisher: name: Columbia University
Year: 2019
Subjects: Medical laboratories--Data processing
Blood--Analysis
Intensive care units
Gastrointestinal system
Medical care

description: Background
Quantitative assessments of the severity of bleeding in patients with bleeds within the gastrointestinal tract (GIB) are generally limited to blood tests like the hematocrit. The varied and irregular nature of the data collected during such observations makes it difficult in retrospective data analysis to characterize the complete course of bleeding. We intend to quantify the rate of blood loss over the course of an ICU stay, facilitating more precise analysis of retrospective data, and to use this quantification to examine questions about the effects of GIB.

Methods and findings
A population of 2,445 intensive care admissions across 2,266 patients with a diagnosis of GIB was studied. Using statistical techniques for smoothing data and accepted medical approaches for calculating blood loss, we are able to convert collections of individual laboratory readings that are difficult to understand into a simple, interpretable overview of the patient’s bleeding status over time. To demonstrate this method, we compare patients’ standard vital signs while bleeding heavily to times when they are not bleeding, finding a 3.0 ± 0.5% increase in heart rate, a 1.3 ± 0.4% decrease in systolic blood pressure and a 0.9 ± 0.5% decrease in diastolic blood pressure. After considering the effect of bleeding on standard vital signs, we demonstrate that patients with upper GIB have significantly elevated blood urea nitrogen levels while bleeding heavily, with a mean increase of 11.7 ± 7.2%, while patients with lower GIB do not, with a mean increase of 4.2 ± 6.6%.

Conclusions
This study introduces a novel method of processing retrospective laboratory data to characterize the course of bleeds within the gastrointestinal tract. This method is used to examine the direct effects of bleeding on a patient and can be deployed in future studies of bleeding using retrospective data.
Quantum Isometries of the finite noncommutative geometry of the Standard Model
Creators: name: Bhowmick, Jyotishman
name: D'Andrea, Francesco
name: Dabrowski, Ludwik
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: Primary: 58B34, Secondary: 20G42

description: We compute the quantum isometry group of the finite noncommutative geometry F describing the internal degrees of freedom in the Standard Model of particle physics. We show that this provides genuine quantum symmetries of the spectral triple corresponding to M x F where M is a compact spin manifold. We also prove that the bosonic and fermionic part of the spectral action are preserved by these symmetries.
description: 29 pages, no figures v3: minor changes
Generalized Geologic Map for Land-Use Planning: Monroe County, Kentucky
Creators: name: Carey, Daniel I.
Publisher: name: Kentucky Geological Survey, University of Kentucky
Year: 2007

description: Abstract:
This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.
Laser cooling of a trapped particle with increased Rabi frequencies
Creators: name: Blake, Tony
name: Kurcz, Andreas
name: Saleem, Norah S.
name: Beige, Almut
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This paper analyses the cooling of a single particle in a harmonic trap with red-detuned laser light with fewer approximations than previously done in the literature. We avoid the adiabatic elimination of the excited atomic state but are still interested in Lamb-Dicke parameters $η\ll 1$. Our results show that the Rabi frequency of the cooling laser can be chosen higher than previously assumed, thereby increasing the effective cooling rate but {\em not} affecting the final outcome of the cooling process. Since laser cooling is already a well established experimental technique, the main aim of this paper is to present a model which can be extended to more complex scenarios, like cavity-mediated laser cooling.
description: substantially revised manuscript, 14 pages, 6 figures
Additional file 2 of Mental health-related telemedicine interventions for pregnant women and new mothers: a systematic literature review
Creators: name: Stentzel, Ulrike
name: Grabe, Hans J.
name: Schmidt, Silke
name: Tomczyk, Samuel
name: van den Berg, Neeltje
name: Beyer, Angelika
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: Supplementary file S2. Search terms Pubmed. Table 2. Search term Cochrane. Table 3. Search term Isi web of science. Table 4. Search term PsychInfo.
Uncertainties in nuclear transition matrix elements for neutrinoless $ββ$ decay II: the heavy Majorana neutrino mass mechanism
Creators: name: Rath, P. K.
name: Chandra, R.
name: Raina, P. K.
name: Chaturvedi, K.
name: Hirsch, J. G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Employing four different parametrization of the pairing plus multipolar type of effective two-body interaction and three different parametrizations of Jastrow-type of short range correlations, the uncertainties in the nuclear transition matrix elements $M_{N}^{(0ν)}$ due to the exchange of heavy Majorana neutrino for the $0^{+}\rightarrow 0^{+}$ transition of neutrinoless double beta decay of $^{94}$Zr, $^{96}$Zr, $^{98}$Mo, $^{100}$Mo, $^{104}$Ru, $^{110}$Pd, $^{128,130}$Te and $^{150}$Nd isotopes in the PHFB model are estimated to be around 25%. Excluding the nuclear transition matrix elements calculated with Miller-Spenser parametrization of Jastrow short range correlations, the uncertainties are found to be 10%-15% smaller.
Repeat HIV testing practices in the era of HIV self-testing among adults in KwaZulu-Natal, South Africa
Creators: name: Harichund, Charlene
name: Kunene, Pinky
name: Simelane, Sinenhlanhla
name: Abdool Karim, Quarraisha
name: Moshabela, Mosa
Publisher: name: Columbia University
Year: 2019
Subjects: HIV-positive persons
HIV (Viruses)--Testing

description: Repeat HIV testing is important in high HIV burden communities to enable sustainability of prevention initiatives; however, an understanding of repeat testing practices is limited. Additional HIV testing approaches may be required to increase testing. HIV self-testing is an additional testing approach, but knowledge on its potential for repeat testing is limited. This study explored repeat HIV testing practices and uptake of HIV self-testing among repeat testers, following exposure to HIV self-testing. HIV testing practices were explored at two time points. During Phase 1, eighty in-depth interviews were conducted among 40 consenting adults, and 30 telephonic contacts were completed during Phase 2. Framework analysis was used to analyse the transcripts from the in-depth interviews. The practice of repeat HIV testing is primarily influenced by HIV status awareness and risk exposure. Thirteen regular testers and one HIV naïve tester at baseline had undergone repeat testing through the use of a traditional testing approach such as HIV counselling and testing as reported in Phase 2. HIV self-testing has a role among repeat testers, but affordability and access are barriers.
Experimental Implementation of the Universal Transpose Operation
Creators: name: Lim, Hyang-Tag
name: Ra, Young-Sik
name: Kim, Yong-Su
name: Bae, Joonwoo
name: Kim, Yoon-Ho
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The universal transpose of quantum states is an anti-unitary transformation that is not allowed in quantum theory. In this work, we investigate approximating the universal transpose of quantum states of two-level systems (qubits) using the method known as the structural physical approximation to positive maps. We also report its experimental implementation in linear optics. The scheme is optimal in that the maximal fidelity is attained and also practical as measurement and preparation of quantum states that are experimentally feasible within current technologies are solely applied.
description: 4 pages, 4 figures
Additional file 3 of Mental health-related telemedicine interventions for pregnant women and new mothers: a systematic literature review
Creators: name: Stentzel, Ulrike
name: Grabe, Hans J.
name: Schmidt, Silke
name: Tomczyk, Samuel
name: van den Berg, Neeltje
name: Beyer, Angelika
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 3: Supplementary file S3. N = 44 reports (solely articles) included in this review.
Non-linear sigma model in de Sitter space
Creators: name: Kitamoto, Hiroyuki
name: Kitazawa, Yoshihisa
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate infra-red dynamics of the non-linear sigma model in de Sitter space. In the presence of minimally coupled massless scalar fields, the de Sitter symmetry is dynamically broken and physical constants become time dependent. We find that the coupling constant of the non-linear sigma model becomes time dependent. The power counting arguments of the infra-red logarithms indicate that the cosmological constant also acquires time dependence. We find that such infra-red logarithms cancel out in a perturbative investigation up to the two loop level. We further demonstrate a non-perturbative non-renormalization of the cosmological constant in the large $N$ limit of the non-linear sigma model.
description: 34pages
Functional renormalization group at finite density and Bose condensation
Creators: name: Svanes, Eirik E.
name: Andersen, Jens O.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the functional renormalization group and pion condensation in the presence of a finite isospin chemical potential $μ_I$. We calculate the phase diagram as function of temperature $T$ and $μ_I$. While the exact effective average action is invariant under certain gauge transformations, the effective action in the local-potential approximation is not. As a consequence, the critical chemical potential $μ_I^c$ for Bose-Einstein condensation at T=0 is no longer equal to the mass of the condensing mode. We discuss possible solutions to this problem.
description: 14 pages. 5 Figs. 2nd version matches published version. Fig.3 improved. Refs. added. Typos fixed
Additional file 4 of Mental health-related telemedicine interventions for pregnant women and new mothers: a systematic literature review
Creators: name: Stentzel, Ulrike
name: Grabe, Hans J.
name: Schmidt, Silke
name: Tomczyk, Samuel
name: van den Berg, Neeltje
name: Beyer, Angelika
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 4: Supplementary file S4. Mental health-related outcome findings and operationalized by measuring instruments
東京都内自治体におけるミニ・パブリックス型市民参加（2019〜2023年度）事例調査付録表
Creators: name: Nagano, Motoki
name: Tsuruga, Takahiro
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 440708
subject: Public administration
classificationCode: 440714
subject: Urban policy

description: 東京都内自治体［特別区（23区）・多摩地域（26市3町1村）］において住民基本台帳からの無作為抽出・招聘と熟議を特徴とするミニ・パブリックス型市民参加を継続して（繰り返して）実施する自治体の事例調査（付録表）
Report on the validation of a demonstrator for the exchange of dimensional measurements in an end user application, with a secure logistic data chain including DCCs
Creators: name: Mustapää, T.
name: Immonen, L.
name: Tunkkari, H.
name: Taponen, J.
name: Parkkinen, L.
name: Pousi, J.
name: Hutzschenreuter, D.
name: Heeren, W.
name: Brown, C.
name: Baer, O.
name: Bernhardt, R.
name: Stein, K.
name: Haller, J.
name: Müller-Schöll, C.
Publisher: name: Zenodo
Year: 2021
Subjects: DCC
D-SI
Validation
Cryptography
Digital Signature

description: In this deliverable report of SmartCom project we introduce a demonstrator for exchanging metrological data in a smart overhead crane. The demonstrator showcases the use of Digital Calibration Certificates (DCC), Digital SI (D-SI) and appropriate cryptographical methods such as digital signatures and Distributed Ledger Technology (DLT), a.k.a. a blockchain, for secure exchange of measurement data and relevant metadata of cargo containers.
description: The SmartCom project 17IND02 has received funding from the EMPIR programme co-financed by the Participating States and from the European Union's Horizon 2020 research and innovation programme.
Giant Magnetocaloric Effect in Spin Supersolid Candidate Na$_2$BaCo(PO$_4$)$_2$
Creators: name: Xiang, Junsen
name: Zhang, Chuandi
name: Gao, Yuan
name: Schmidt, Wolfang
name: Schmalzl, Karin
name: Wang, Chin-Wei
name: Li, Bo
name: Xi, Ning
name: Liu, Xin-Yang
name: Jin, Hai
name: Li, Gang
name: Shen, Jun
name: Chen, Ziyu
name: Qi, Yang
name: Wan, Yuan
name: Jin, Wentao
name: Li, Wei
name: Sun, Peijie
name: Su, Gang
Publisher: name: arXiv
Year: 2025
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Supersolid, an exotic quantum state of matter that consists of particles forming an incompressible solid structure while simultaneously showing superfluidity of zero viscosity [1], is one of the long-standing pursuits in fundamental research [2, 3]. Although the initial report of $^4$He supersolid turned out to be an artifact [4], this intriguing quantum matter has inspired enthusiastic investigations into ultracold quantum gases [5-8]. Nevertheless, the realization of supersolidity in condensed matter remains elusive. Here we find evidence for a quantum magnetic analogue of supersolid -- the spin supersolid -- in the recently synthesized triangular-lattice antiferromagnet Na$_2$BaCo(PO$_4$)$_2$ [9]. Notably, a giant magnetocaloric effect related to the spin supersolidity is observed in the demagnetization cooling process, manifesting itself as two prominent valley-like regimes, with the lowest temperature attaining below 100 mK. Not only is there an experimentally determined series of critical fields but the demagnetization cooling profile also shows excellent agreement with the theoretical simulations with an easy-axis Heisenberg model. Neutron diffractions also successfully locate the proposed spin supersolid phases by revealing the coexistence of three-sublattice spin solid order and interlayer incommensurability indicative of the spin superfluidity. Thus, our results indicate a strong entropic effect of the spin supersolid phase in a frustrated quantum magnet and open up a viable and promising avenue for applications in sub-Kelvin refrigeration, especially in the context of persistent concerns about helium shortages [10, 11].
description: 19 pages, 13 figures
A God Who is Present: A Christological and Anthropological Study of the Presence of God in Pope Benedict XVI’s Jesus of Nazareth
Creators: name: Farah, Nassif
Publisher: name: Université Saint-Paul / Saint Paul University
Year: 2019
Subjects: presence
Christology
anthropology
Joseph Ratzinger

description: The thesis deals with the question of God’s presence on one side, and the path to determine the effectiveness of this presence on the other side. It explores the problem of God’s historicity, his continual presence among us, and the effects of his presence.
Additional file 5 of Mental health-related telemedicine interventions for pregnant women and new mothers: a systematic literature review
Creators: name: Stentzel, Ulrike
name: Grabe, Hans J.
name: Schmidt, Silke
name: Tomczyk, Samuel
name: van den Berg, Neeltje
name: Beyer, Angelika
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 5: Supplementary file S5. Risk of bias judgement.