cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Adult hippocampal neurogenesis and cell activation are regulated by sex differences in spatial learning
Creators: name: Chow, Yin Man Carmen
Publisher: name: University of British Columbia
Year: 2012

description: Adult hippocampal neurogenesis is associated with hippocampus-dependent learning and memory. Throughout the course of a new neuron’s development, it is differentially sensitive to factors that can influence its survival and subsequent functionality. Previous research shows that in male rats, spatial training that occurred 6 to 10 days after an injection of the DNA synthesis marker, bromodeoxyuridine (BrdU), increased cell survival, but no change was observed in animals trained on days 1 to 5 or 11 to 15 and perfused 16 days after BrdU injection (Epp et al., 2007). Because sex differences favouring males in spatial cognition and in hippocampal neurogenesis have been reported, it is unclear whether spatial learning would influence hippocampal neurogenesis in the same way in males and females. Therefore, this study aimed to compare sex differences in hippocampal neurogenesis relative to training in a spatial task. Male and female rats were exposed to training in the spatial or cued version of the Morris Water Maze 6 to 10 days after one injection of BrdU (200mg/kg). Twenty days following BrdU injection, all animals were given a 30-second probe trial and perfused. Males showed better performance in the spatial task, but not cue task, than females. Spatial learning increased the density of BrdU-labeled cells relative to cue training only in males, but both males and females showed greater cell activation (BrdU co-labeled with immediate early gene product zif268) after spatial training compared to cue training. Furthermore, performance during spatial training and testing were positively correlated with cell activation in females but not males. This study shows that while spatial learning differentially regulates hippocampal neurogenesis in males and females, the activity of new neurons in response to spatial memory is similar. These findings highlight the importance of sex on neural plasticity and cognition.
Topological phase in one-dimensional interacting fermion system
Creators: name: Guo, Huaiming
name: Shen, Shun-Qing
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study a one-dimensional interacting topological model by means of exact diagonalization method. The topological properties are firstly examined with the existence of the edge states at half-filling. We find that the topological phases are not only robust to small repulsive interactions but also are stabilized by small attractive interactions, and also finite repulsive interaction can drive a topological non-trivial phase into a trivial one while the attractive interaction can drive a trivial phase into a non-trivial one. Next we calculate the Berry phase and parity of the bulk system and find that they are equivalent in characterizing the topological phases. With them we obtain the critical interaction strengths and construct part of the phase diagram in the parameters space. Finally we discuss the effective Hamiltonian at large-U limit and provide additional understanding of the numerical results. Our these results could be realized experimentally using cold atoms trapped in the 1D optical lattice.
description: 7 pages, 5 figures; revised version, references added, Accepted for publication in Physical Review B
Local channels preserving maximal entanglement or Schmidt number
Creators: name: Guo, Yu
name: Bai, Zhaofang
name: Du, Shuanping
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Maximal entanglement and Schmidt number play an important role in various quantum information tasks. In this paper, it is shown that a local channel preserves maximal entanglement state(MES) or preserves pure states with Schmidt number $r$($r$ is a fixed integer) if and only if it is a local unitary operation.
description: 10 pages
Additional file 1 of Real-time tracking of stem cell viability, proliferation, and differentiation with autonomous bioluminescence imaging
Creators: name: Conway, Michael
name: Xu, Tingting
name: Kirkpatrick, Andrew
name: Ripp, Steven
name: Sayler, Gary
name: Close, Dan
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Science Policy
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 1: Fig. S1. Luciferin:luciferase component integration and transcriptional expression ratios in autobioluminescent cells following extended time in culture. PDF File detailing the results of qPCR and qRT-PCR experiments to determine luciferin:luciferase integration and expression post-transfection. (a) Genomic DNA from iPSC-lux lines 11 passages after stable transfection with a 30:1 molar ratio of Stem-luxCDEF:Stem-luxAB or cardiomyocytes stably transfected with the tetracycline-repressible lux operon (TET-lux; 1:1 molar ratio), were probed by qPCR to determine the actual gene expression ratios post-transfection. Because the luciferin and luciferase pathway genes were expressed using 2A elements to concatenate each component into a single open reading frame, the second gene of each operon was used for qPCR analysis. As described in [12], this approach provides an average expression level for each operon while accounting for possible reduced expression of the genes distal to the promoter. (b) qRT-PCR analysis reveals that, despite their 27:1 genomic integration ratio, the luciferin pathway is only transcribed at 15:1 relative to the luciferase pathway. Data is available at https://osf.io/h5qzj/ [15].
Onthophagus parafasciatus Balthasar 1974
Creators: name: Kharel, Bhim Prasad
name: Schoolmeester, Paul
name: Sarkar, Subhankar Kumar
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus parafasciatus

description: 128 Onthophagus parafasciatus Balthasar, Tamil Nadu No record found Bezdĕk and Hájek 2013 1974
description: Published as part of Kharel, Bhim Prasad, Schoolmeester, Paul & Sarkar, Subhankar Kumar, 2020, A first faunistic account on the Onthophagus Latreille, 1802 (Coleoptera, Scarabaeidae, Scarabaeinae) of the Nadia district, West Bengal, with a preliminary checklist from India, pp. 361-381 in Check List 16 (2) on page 379, DOI: 10.15560/16.2.361
What is the gravity dual of the confinement/deconfinement transition in holographic QCD?
Creators: name: Mandal, Gautam
name: Morita, Takeshi
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the gravity dual of four dimensional pure Yang-Mills theory through D4 branes, as proposed by Witten (holographic QCD). In this holographic QCD, it has been widely believed that the confinement phase in the pure Yang-Mills theory corresponds to the AdS D4 soliton in gravity and the deconfinement phase corresponds to the black D4 brane. We inspect this conjecture carefully and show that the correspondence between the black D4 brane and the deconfinement phase is not correct. Instead, by using a slightly different set up, we find an alternative gravity solution called "localized soliton", which would be properly related to the deconfinement phase. In this case, the confinement/deconfinement transition is realized as a Gregory-Laflamme type transition. We find that our proposal naturally explains several known properties of QCD.
description: 6 pages, 1 figure, based on the proceedings of the Seventh International Conference `Quantum Theory and Symmetries', held in Prague 2011 and XVII European Workshop on String Theory 2011, held in Padua; v2: minor corrections
Modeling the flyby anomalies with dark matter scattering: update with additional data and further predictions
Creators: name: Adler, Stephen L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We continue our exploration of whether the flyby anomalies can be explained by scattering of spacecraft nucleons from dark matter gravitationally bound to the earth, with the addition of data from five new flybys to that from the original six. We continue to use our model in which inelastic and elastic scatterers populate shells generated by the precession of circular orbits with normals tilted with respect to the earth's axis. With 11 data points and 8 parameters in the model, a statistically meaningful fit is obtained with a chi-squared of 2.7. We give plots of the anomalous acceleration along the spacecraft trajectory, and the cumulative velocity change, for the five flybys which exhibit a significant nonzero anomaly. We also discuss implications of the fit for dark matter-nucleon cross sections, give the prediction of our fit for the anomaly to be expected from the future Juno flyby, and give predictions of our fit for flyby orbit orientation changes. In addition we give formulas for estimating the flyby temperature increase caused by dark matter inelastic scattering, and for the fraction of flyby nucleons undergoing such scatters. Finally, for circular satellite orbits, we give a table of predicted secular changes in orbit radius. These are much too large to be reasonable -- comparing with data for COBE and GP-B supplied to us by Edward Wright (after the first version of this paper was posted), we find that our model predicts changes in orbit radius that are too large by many orders of magnitude. So the model studied here is ruled out. We conclude that further modeling of the flyby anomalies must simultaneously attempt to fit constraints coming from satellite orbits.
description: Latex, 39 pages. Comparison with COBE and GP-B data added; see Abstract, and Added note in Section VII
Understanding the performance of the low energy neutrino factory: the dependence on baseline distance and stored-muon energy
Creators: name: Ballett, Peter
name: Pascoli, Silvia
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by recent hints of large θ13 from the T2K, MINOS and Double Chooz experiments, we study the physics reach of a Low Energy Neutrino Factory (LENF) and its dependence on the chosen baseline distance, L, and stored-muon energy, E_μ, in order to ascertain the configuration of the optimal LENF. In particular, we study the performance of the LENF over a range of baseline distances from 1000 km to 4000 km and stored-muon energies from 4 GeV to 25 GeV, connecting the early studies of the LENF (1300 km, 4.5 GeV) to those of the conventional, high-energy neutrino factory design (4000 km and 7000 km, 25 GeV). Three different magnetized detector options are considered: a Totally-Active Scintillator Detector (TASD) and two models of a liquid-argon detector distinguished by optimistic and conservative performance estimates. In order to compare the sensitivity of each set-up, we compute the full δ-dependent discovery contours for the determination of non-zero θ13, CP-violating values of δ and the mass hierarchy. In the case of large θ13 with sin^2(2*θ13) = (few)*10^{-3}, the LENF provides a strong discovery potential over the majority of the L-E_μ parameter space and is a promising candidate for the future generation of long baseline experiments aimed at discovering CP-violation and the mass hierarchy, and at making a precise determination of the oscillation parameters.
description: 14 pages, 5 figures
High Frame-rate Imaging Based Photometry, Photometric Reduction of Data from Electron-multiplying Charge Coupled Devices (EMCCDs)
Creators: name: Harpsøe, Kennet B. W.
name: Jørgensen, Uffe G.
name: Andersen, Michael I.
name: Grundahl, Frank
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The EMCCD is a type of CCD that delivers fast readout times and negligible readout noise, making it an ideal detector for high frame rate applications which improve resolution, like lucky imaging or shift-and-add. This improvement in resolution can potentially improve the photometry of faint stars in extremely crowded fields significantly by alleviating crowding. Alleviating crowding is a prerequisite for observing gravitational microlensing in main sequence stars towards the galactic bulge. However, the photometric stability of this device has not been assessed. The EMCCD has sources of noise not found in conventional CCDs, and new methods for handling these must be developed. We aim to investigate how the normal photometric reduction steps from conventional CCDs should be adjusted to be applicable to EMCCD data. One complication is that a bias frame cannot be obtained conventionally, as the output from an EMCCD is not normally distributed. Also, the readout process generates spurious charges in any CCD, but in EMCCD data, these charges are visible as opposed to the conventional CCD. Furthermore we aim to eliminate the photon waste associated with lucky imaging by combining this method with shift-and-add. A simple probabilistic model for the dark output of an EMCCD is developed. Fitting this model with the expectation-maximization algorithm allows us to estimate the bias, readout noise, amplification, and spurious charge rate per pixel and thus correct for these phenomena. To investigate the stability of the photometry, corrected frames of a crowded field are reduced with a PSF fitting photometry package, where a lucky image is used as a reference. We find that it is possible to develop an algorithm that elegantly reduces EMCCD data and produces stable photometry at the 1% level in an extremely crowded field.
description: Submitted to Astronomy and Astrophysics
Computational thermomechanics of crystalline rock, Part I: A combined multi-phase-field/crystal plasticity approach for single crystal simulations
Creators: name: Na, SeonHong
name: Sun, WaiChing
Publisher: name: Columbia University
Year: 2018
Subjects: Rock mechanics
Rock salt
Salt
Crystals--Plastic properties
Anisotropy

description: Rock salt is one of the major materials used for nuclear waste geological disposal. The desired characteristics of rock salt, i.e., high thermal conductivity, low permeability, and self-healing are highly related to its crystalline microstructure. Conventionally, this microstructural effect is often incorporated phenomenologically in macroscopic damage models. Nevertheless, the thermo-mechanical behavior of a crystalline material is dictated by the nature of crystal lattice and micromechanics (i.e., the slip-system). This paper presents a model proposed to examine these fundamental mechanisms at the grain scale level. We employ a crystal plasticity framework in which single-crystal halite is modeled as a face-centered cubic (FCC) structure with the secondary atoms in its octahedral holes, where a pair of Na and Cl ions forms the bond basis. Utilizing the crystal plasticity framework, we capture the existence of an elastic region in the stress space and the sequence of slip system activation of single-crystal halite under different temperature ranges. To capture the anisotropic nature of the intragranular fracture, we couple a crystal plasticity model with a multi-phase-field formulation that does not require high-order terms for the phase field. Numerical examples demonstrate that the proposed model is able to capture the anisotropy of inelastic and damage behavior under various loading rates and temperature conditions.
Additional file 7 of Real-time tracking of stem cell viability, proliferation, and differentiation with autonomous bioluminescence imaging
Creators: name: Conway, Michael
name: Xu, Tingting
name: Kirkpatrick, Andrew
name: Ripp, Steven
name: Sayler, Gary
name: Close, Dan
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Science Policy
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 7: Fig. S7. Immunohistochemical confirmation of cardiac differentiation. PDF File showing staining of cardiomyocytes with the anti-Troponin-T antibody to confirm successful differentiation. Following the onset of beating, cardiomyocyte differentiation was confirmed by staining with the primary antibody: Troponin T, Cardiac Isoform Ab-1, Mouse Monoclonal Antibody, Clone: 13-11 Isotype: IgG1 and visualizing with the secondary antibody: Goat anti Mouse IgG (H+L) Alexa Fluor 488. Cells were imaged using both the transmitted light and green fluorescent protein (GFP) channels of an EVOS M5000 Cell Imaging System at 40× magnification.
Density-potential mappings in quantum dynamics
Creators: name: Ruggenthaler, M.
name: Giesbertz, K. J. H
name: Penz, M.
name: van Leeuwen, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In a recent letter [Europhys. Lett. 95, 13001 (2011)] the question of whether the density of a time-dependent quantum system determines its external potential was reformulated as a fixed point problem. This idea was used to generalize the existence and uniqueness theorems underlying time-dependent density functional theory. In this work we extend this proof to allow for more general norms and provide a numerical implementation of the fixed-point iteration scheme. We focus on the one-dimensional case as it allows for a more in-depth analysis using singular Sturm-Liouville theory and at the same time provides an easy visualization of the numerical applications in space and time. We give an explicit relation between the boundary conditions on the density and the convergence properties of the fixed-point procedure via the spectral properties of the associated Sturm-Liouville operator. We show precisely under which conditions discrete and continuous spectra arise and give explicit examples. These conditions are then used to show that in the most physically relevant cases the fixed point procedure converges. This is further demonstrated with an example.
description: 20 pages, 8 figures, 3 tables
Next-to-leading-order time-like pion form factors in $k_T$ factorization
Creators: name: Hu, Hao-Chung
name: Li, Hsiang-nan
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the time-like pion-photon transition form factor and the pion electromagnetic form factor up to next-to-leading order (NLO) of the strong coupling constant in the leading-twist $k_T$ factorization formalism. It is found that the NLO corrections to the magnitude (phase) are lower than 30% ($30^\circ$) for the former, and lower than 25% ($10^\circ$) for the latter at large invariant mass squared $Q^2>30$ GeV$^2$ of the virtual photons. The increase of the strong phases with $Q^2$ is obtained, consistent with the tendency indicated by experimental data. This behavior is attributed to the inclusion of parton transverse momenta $k_T$, implying that the $k_T$ factorization is an appropriate framework for analyzing complex time-like form factors. Potential extensions of our formalism to two-body and three-body hadronic $B$ meson decays are pointed out.
description: Version to appear in Phys.Lett.B
Onthophagus pithankithae Karimbumkara & Priyadarsanan 2016
Creators: name: Kharel, Bhim Prasad
name: Schoolmeester, Paul
name: Sarkar, Subhankar Kumar
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus pithankithae

description: 133 Onthophagus pithankithae Karnataka, Kerala, No record found Karimbumkara and Priyadarsanan 2016 Karimbumkara & Priyadarsanan,2016
description: Published as part of Kharel, Bhim Prasad, Schoolmeester, Paul & Sarkar, Subhankar Kumar, 2020, A first faunistic account on the Onthophagus Latreille, 1802 (Coleoptera, Scarabaeidae, Scarabaeinae) of the Nadia district, West Bengal, with a preliminary checklist from India, pp. 361-381 in Check List 16 (2) on page 379, DOI: 10.15560/16.2.361
Is Isolated Nocturnal Hypertension A Reproducible Phenotype?
Creators: name: Abdalla, Marwah
name: Goldsmith, Jeff
name: Muntner, Paul
name: Diaz, Keith
name: Reynolds, Kristi
name: Schwartz, Joseph E.
name: Shimbo, Daichi
Publisher: name: Columbia University
Year: 2015
Subjects: Ambulatory blood pressure monitoring
Hypertension
Cardiovascular system--Diseases

description: BACKGROUND: Isolated nocturnal hypertension (INH), defined as nocturnal without daytime hypertension on ambulatory blood pressure (BP) monitoring (ABPM), has been observed to be associated with an increased risk of cardiovascular disease (CVD) events and mortality. The aim of this study was to determine the short-term reproducibility of INH. METHODS: The Improving the Detection of Hypertension Study enrolled a community-based sample of adults (N = 282) in upper Manhattan without CVD, renal failure, or treated hypertension. Each participant completed two 24-hour ABPM recordings (ABPM1: first recording and ABPM2: second recording) with a mean ± SD time interval of 33 ± 17 days between recordings. Daytime hypertension was defined as mean awake systolic/diastolic BP ≥ 135/85 mm Hg; nocturnal hypertension as mean sleep systolic/diastolic BP ≥ 120/70 mm Hg; INH as nocturnal without daytime hypertension; isolated daytime hypertension (IDH) as daytime without nocturnal hypertension; day and night hypertension (DNH) as daytime and nocturnal hypertension, and any ambulatory hypertension as having daytime and/or nocturnal hypertension. RESULTS: On ABPM1, 26 (9.2%), 21 (7.4%), and 50 (17.7%) participants had INH, IDH, and DNH, respectively. On ABPM2, 24 (8.5%), 19 (6.7%), and 54 (19.1%) had INH, IDH, and DNH, respectively. The kappa statistics were 0.21 (95% confidence interval (CI) 0.04-0.38), 0.25 (95% CI 0.06-0.44), and 0.65 (95% CI 0.53-0.77) for INH, IDH, and DNH respectively; and 0.72 (95% CI 0.63-0.81) for having any ambulatory hypertension. CONCLUSIONS: Our results suggest that INH and IDH are poorly reproducible phenotypes, and that ABPM should be primarily used to identify individuals with daytime hypertension and/or nocturnal hypertension.
Unsolved mysteries: How does lipid peroxidation cause ferroptosis?
Creators: name: Feng, Huizhong
name: Stockwell, Brent R.
Publisher: name: Columbia University
Year: 2018
Subjects: Cell death
Lipids--Peroxidation
Cytology
Molecular biology
Apoptosis

description: Ferroptosis is a cell death process driven by damage to cell membranes and linked to numerous human diseases. Ferroptosis is caused by loss of activity of the key enzyme that is tasked with repairing oxidative damage to cell membranes—glutathione peroxidase 4 (GPX4). GPX4 normally removes the dangerous products of iron-dependent lipid peroxidation, protecting cell membranes from this type of damage; when GPX4 fails, ferroptosis ensues. Ferroptosis is distinct from apoptosis, necroptosis, necrosis, and other modes of cell death. Several key mysteries regarding how cells die during ferroptosis remain unsolved. First, the drivers of lipid peroxidation are not yet clear. Second, the subcellular location of lethal lipid peroxides remains an outstanding question. Finally, how exactly lipid peroxidation leads to cell death is an unsolved mystery. Answers to these questions will provide insights into the mechanisms of ferroptotic cell death and associated human diseases, as well as new therapeutic strategies for such diseases.
Precompact Apartness Spaces
Creators: name: Bridges, Douglas S
Publisher: name: arXiv
Year: 2012
Subjects: subject: Logic in Computer Science (cs.LO)
subject: General Topology (math.GN)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: math.GN

description: We present a notion of precompactness, and study some of its properties, in the context of apartness spaces whose apartness structure is not necessarily induced by any uniform one. The presentation lies entirely with a Bishop-style constructive framework, and is a contribution to the ongoing development of the constructive theories of apartness and uniformity.
Onthophagus politus
Creators: name: Kharel, Bhim Prasad
name: Schoolmeester, Paul
name: Sarkar, Subhankar Kumar
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus politus

description: 135 Onthophagus politus (Fabricius,1798) Arunachal Pradesh,Bihar,Gujarat,Haryana, Sri Lanka Arrow 1931;Sewak 2006,2009a,2009b;Karimbumkara and Himachal Pradesh,Karnataka,Rajasthan,Tamil Priyadarsanan 2013 Nadu, Uttar Pradesh
description: Published as part of Kharel, Bhim Prasad, Schoolmeester, Paul & Sarkar, Subhankar Kumar, 2020, A first faunistic account on the Onthophagus Latreille, 1802 (Coleoptera, Scarabaeidae, Scarabaeinae) of the Nadia district, West Bengal, with a preliminary checklist from India, pp. 361-381 in Check List 16 (2) on page 379, DOI: 10.15560/16.2.361
title: The use of generalized additive models to examine relationships between environmental variables and commercial catch rates
Creators: name: Roman, Sally
name: Cadrin, Steve
Publisher: name: ASC 2010 - Theme session G
Year: 2024
Subjects: Technologies and data
Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.Generalized additive models (GAMs) have become an accepted method for assessing non-linear effects of factors on catch rates of commercial species. Catch data reported by the University of Massachusetts School for Marine Science and Technology study fleet from 2006 to 2009 were standardized to catch per unit of effort for Atlantic cod (Gadus morhua), haddock (Melanogrammus aeglefinus), and windowpane flounder (Scophthalmus aquosus). GAMs were employed to determine how fluctuations in catch were influenced by environmental conditions. Explanatory variables included year, season, time of day, latitude, longitude, depth, and bottom temperature. Models were built with stepwise forward selection based on the Akaike information criterion value and deviance explained. Successive models were tested for significant differences with a Chi-square test. Results indicated that spatial variables described the majority of the explained deviance. Other variables were significant, but the contribution to the explained deviance was small. A disadvantage of having a large number of explanatory variables is that an optimal model may be selected in which many variables have significant effects. Another possible artefact of including many explanatory variables is that correlation may occur, which affects model fit. While GAMs can characterize spatial and temporal patterns in catch rates, selection of explanatory variables has implications for the results. If identifying trends in catch rates or shifts in species abundance are an intended outcome, then certain variables such as depth and water temperature may need to be included. Despite these technical challenges, GAMs appear to be a robust method for identifying factors associated with catch rates.
Stereotype threat impairs the feeling of learning
Creators: name: Hall, William
Publisher: name: University of British Columbia
Year: 2012

description: The present study examined stereotype threat impairments on stigmatized learners’ ability to develop conscious awareness of what they have learned, even when learning has taken place. To test this, participants completed a task where learning is initially implicit but the “feeling of learning” develops with greater experience. Participants were female undergraduates who completed an implicit category learning task under threat or control conditions. Across 192 trials, participants made a category choice, rated their confidence in the choice, and received feedback. Although participants in both conditions showed equivalent levels of implicit learning, those under threat were delayed in becoming confident that learning had taken place. This inaccurate awareness of learning had consequences for post-task perceptions of performance and judgments of ability on future tasks. Discussion centers on the role of stereotype threat in hindering awareness of one’s abilities and the impact that might have on decision-making and motivation.
Onthophagus royi Biswas & Chatterjee 1985
Creators: name: Kharel, Bhim Prasad
name: Schoolmeester, Paul
name: Sarkar, Subhankar Kumar
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus royi

description: 148 Onthophagus royi Biswas & Chatterjee, Arunachal Pradesh No record found Biswas and Chatterjee 1985;Sewak 2006 1985
description: Published as part of Kharel, Bhim Prasad, Schoolmeester, Paul & Sarkar, Subhankar Kumar, 2020, A first faunistic account on the Onthophagus Latreille, 1802 (Coleoptera, Scarabaeidae, Scarabaeinae) of the Nadia district, West Bengal, with a preliminary checklist from India, pp. 361-381 in Check List 16 (2) on page 379, DOI: 10.15560/16.2.361
The Very Short Period M Dwarf Binary SDSS J001641-000925
Creators: name: Davenport, James R. A.
name: Becker, Andrew C.
name: West, Andrew A.
name: Bochanski, John J.
name: Hawley, Suzanne L.
name: Holtzman, Jon
name: Gunning, Heather C.
name: Hilton, Eric J.
name: Munshi, Ferah D.
name: Albright, Meagan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present follow-up observations and analysis of the recently discovered short period low-mass eclipsing binary, SDSS J001641-000925. With an orbital period of 0.19856 days, this system has one of the shortest known periods for an M dwarf binary system. Medium-resolution spectroscopy and multi-band photometry for the system are presented. Markov chain Monte Carlo modeling of the light curves and radial velocities yields estimated masses for the stars of M1 = 0.54 +/- 0.07 Msun and M2 = 0.34 +/- 0.04 Msun, and radii of R1 = 0.68 +/- 0.03 Rsun and R2 = 0.58 +/- 0.03 Rsun respectively. This solution places both components above the critical Roche overfill limit, providing strong evidence that SDSS J001641-000925 is the first verified M-dwarf contact binary system. Within the follow-up spectroscopy we find signatures of non-solid body rotation velocities, which we interpret as evidence for mass transfer or loss within the system. In addition, our photometry samples the system over 9 years, and we find strong evidence for period decay at the rate of dP/dt ~8 s/yr. Both of these signatures raise the intriguing possibility that the system is in over-contact, and actively losing angular momentum, likely through mass loss. This places SDSS J001641-000925 as not just the first M-dwarf over-contact binary, but one of the few systems of any spectral type known to be actively undergoing coalescence. Further study SDSS J001641-000925 is on-going to verify the nature of the system, which may prove to be a unique astrophysical laboratory.
description: 11 figures, ApJ Accepted
Photon-photon interaction and Schwinger process
Creators: name: Bulycheva, K.
name: Guts, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the tunneling processes induced by two-particle collisions. The result derived by the termal bath approach is reproduced by the classical configurations. The Coulomb and Yukawa corrections for the rate of the process are computed.
description: 11 pages, 5 figures
title: Machine learning functional models of fish population interaction
Creators: name: Tucker, Allan
name: Duplisea, Daniel
Publisher: name: ASC 2010 - Theme session G
Year: 2024
Subjects: Technologies and data
Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.Our research aims to uncover key relationships between species by modelling the complex interactions between species using probabilistic networks. Modern machine learning approaches such as Bayesian networks offer numerous advantages over traditional modelling approaches, including the ability to exploit human expertise to direct otherwise data-driven models, and uncovering hidden factors that may explain certain artefacts in the data better than any measured variables. The key novelty of our research, however, is the focus on critical subsystems by exploring the functions of species across different populations. Different species may have similar functional roles within a system depending on the region. For example, one species may act as a predator of another which regulates a population in one location, but another species may perform an almost identical role in another location. If we can model the function of the interaction rather than the species itself, data from different regions can be used to confirm key functional relationships, to generalize over systems and to predict impacts of forces such as fishing and climate change. The approach concerns functional network topology and avoids the necessity of describing the specifics of network nodes. Our results so far are promising, demonstrating that similar functional roles can indeed be discovered using simulated data with relatively small sample sizes. Some initial results on real data from the Northern Gulf and the East Scotian Shelf also point towards some interesting discoveries between the two geographical locations, in particular identifying similar competing predator combinations and predator–prey interactions.
Onthophagus rubripennis Arrow 1907
Creators: name: Kharel, Bhim Prasad
name: Schoolmeester, Paul
name: Sarkar, Subhankar Kumar
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus rubripennis

description: 150 Onthophagus rubripennis Arrow,1907 Arunachal Pradesh,Assam,Sikkim,Meghalaya, Bhutan, Myanmar Arrow 1931;Biswas and Chatterjee 1985 West Bengal
description: Published as part of Kharel, Bhim Prasad, Schoolmeester, Paul & Sarkar, Subhankar Kumar, 2020, A first faunistic account on the Onthophagus Latreille, 1802 (Coleoptera, Scarabaeidae, Scarabaeinae) of the Nadia district, West Bengal, with a preliminary checklist from India, pp. 361-381 in Check List 16 (2) on page 379, DOI: 10.15560/16.2.361
Middle Kingdom Clappers, Dancers, Birth Magic, and the Reinvention of Ritual
Creators: name: Morris, Ellen F.
Publisher: name: Columbia University
Year: 2017
Subjects: Civilization, Ancient
Archaeology
Egyptology

description: This essay examines the archaeological contexts of late Old Kingdom and Middle Kingdom hand-shaped clappers and argues three main points. First, the sites with the greatest concentration of clappers were those located near mortuary temples. Given that clappers were frequently found with female figurines and mirrors, they may have been utilized in mortuary temples by Hathoric performers who danced for the dead king as Re. Second, clappers were an integral part of birth magic and are frequently found in the company of two and three dimensional male and female lion-headed daemons and other protectors (sꜢw) of the sun god and of those about to be born or reborn. Finally, it is argued that, like many Middle Kingdom grave goods, clappers had been ‘rediscovered’ and religiously re-envisioned by sacral authorities who encountered Protodynastic and Early Dynastic votive material during temple renovations and perhaps also during work at the pilgrimage site of Umm el-Qa’ab.
What can the detection of a single pair of circles-in-the-sky tell us about the geometry and topology of the Universe ?
Creators: name: Mota, B.
name: Reboucas, M. J.
name: Tavakol, R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a Universe with a detectable nontrivial spatial topology the last scattering surface contains pairs of matching circles with the same distribution of temperature fluctuations --- the so-called circles-in-the-sky. Searches undertaken for nearly antipodal pairs of such circles in cosmic microwave background maps have so far been unsuccessful. Previously we had shown that the negative outcome of such searches, if confirmed, should in principle be sufficient to exclude a detectable non-trivial spatial topology for most observers in very nearly flat ($0
description: 6 pages, 2 figures, 1 table. V2: Version to appear in Phys. Rev. D (Oct.,2011). Minor changes, references added. V3:Version published in Phys.Rev.D. Typos corrected, presentation of a point improved
Five-particle contributions to B-bar -> X_s(d) l+ l- and phenomenological update
Creators: name: Qin, Qin
Publisher: name: Zenodo
Year: 2019

description: We calculate tree-level contributions to the inclusive rare $\bar B \to X_{s(d)} \, \ell^+\ell^-$ decays. At the partonic level they stem from the five-particle process $b \to s(d) \, q \bar q \, \ell^+\ell^-$, with $q \in \{u,d,s\}$. While for $b \to d$ transitions such five-body final states contribute at the same order in the Wolfenstein expansion compared to the three-body partonic decay, they are CKM suppressed in $b \to s$ decays. In the perturbative expansion, we include all leading-order contributions, as well as partial next-to-leading order QCD and QED effects. In the case of the differential branching ratio, we present all results completely analytically in terms of polylogarithmic functions of at most weight three. We also consider the differential forward-backward asymmetry, where all except one interference could be obtained analytically. From a phenomenological point of view the newly calculated contributions are at the percent level or below. A phenomenological update on $\bar B \to X_{s(d)}\ell^+\ell^-$ results will also be presented.
Onthophagus songsokensis Biswas
Creators: name: Kharel, Bhim Prasad
name: Schoolmeester, Paul
name: Sarkar, Subhankar Kumar
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus songsokensis

description: 159 Onthophagus songsokensis Biswas & Arunachal Pradesh No record found Biswas and Chatterjee 1985;Sewak 2006 Chatterjee,1985
description: Published as part of Kharel, Bhim Prasad, Schoolmeester, Paul & Sarkar, Subhankar Kumar, 2020, A first faunistic account on the Onthophagus Latreille, 1802 (Coleoptera, Scarabaeidae, Scarabaeinae) of the Nadia district, West Bengal, with a preliminary checklist from India, pp. 361-381 in Check List 16 (2) on page 380, DOI: 10.15560/16.2.361
UCSF Datashare Data Use Agreement (custom)
Creators: name: University Of California, San Francicso. Clinical And Translational Science Institute (CTSI).
Publisher: name: University of California at San Francisco
Year: 2013
Subjects: data use agreement

description: This data use agreement covers the following dataset: Harper, Cynthia; Blanchard, Kelly; Chipato, Tsungai; Nhemachena, Taazadza; Ramjee, Gita; Blum, Maya (2012): Provider counseling and provision of female condom in South Africa and Zimbabwe. UC San Francisco. application/octet-stream. doi:10.7272/q6bg2kwf
title: Where to spawn and where to hatch - a comparison of early and late stage fish eggs in the North Sea
Creators: name: Höffle, Hannes
name: Munk, Peter
Publisher: name: ASC 2010 - Theme session G
Year: 2024
Subjects: Technologies and data
Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.Changing climate may shift environmental conditions out of the hitherto observed range, endangering the reliability of model predictions based on historical observations. The SUNFISH (Sustainable fisheries, climate change and the North Sea ecosystem) project aims to create a basis for evaluating effects of future climate change on the North Sea ecosystem. Part of this programme is to investigate the influence of hydrography on spawning and settling areas of North Sea cod (Gadus morhua). Hydrography influences the condition and distribution of spawned fish eggs and may, besides homing behaviour, determine where fish choose to spawn. This study compares hydrography and distributions of eggs and larvae of several commercially important fish species, in late winter 2004 and 2009, investigating potential biophysical linkages. Several areas of high spawning intensity were identified. The hydrography shows a corridor of dense water from the northern North Sea to the English Channel accompanied by a strong boundary between the dense water and water of lower density influenced by freshwater inflow. Peak densities of eggs and larvae were seen along this boundary, giving further support to the hypothesis that hydrographic fronts are important spawning sites for fish. The consequences of these linkages are discussed in relation to potential climatically induced changes in temperature and salinity fronts in the North Sea.
Twisting, reconnecting magnetospheres and magnetar spindown
Creators: name: Parfrey, Kyle
name: Beloborodov, Andrei M.
name: Hui, Lam
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the first simulations of evolving, strongly twisted magnetar magnetospheres. Slow shearing of the magnetar crust is seen to lead to a series of magnetospheric expansion and reconnection events, corresponding to X-ray flares and bursts. The axisymmetric simulations include rotation of the neutron star and the magnetic wind through the light cylinder. We study how the increasing twist affects the spindown rate of the star, finding that a dramatic increase in spindown occurs. Particularly spectacular are explosive events caused by the sudden opening of large amounts of overtwisted magnetic flux, which may be associated with the observed giant flares. These events are accompanied by a short period of ultra-strong spindown, resulting in an abrupt increase in spin period, such as was observed in the giant flare of SGR 1900+14.
description: 5 pages, 2 figures. Version accepted by ApJ Letters
Onthophagus sternalis Arrow 1931
Creators: name: Kharel, Bhim Prasad
name: Schoolmeester, Paul
name: Sarkar, Subhankar Kumar
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus sternalis

description: 161 Onthophagus sternalis Arrow,1931 Bihar,Gujarat,Haryana,Kerala,Madhya Pradesh, Bangladesh, Nepal Arrow 1931;Chandra et al.2012c;Chandra and Gupta 2012e; Maharashtra,Uttarakhand,Uttar Pradesh,West Schoolmeesters 2019 Bengal
description: Published as part of Kharel, Bhim Prasad, Schoolmeester, Paul & Sarkar, Subhankar Kumar, 2020, A first faunistic account on the Onthophagus Latreille, 1802 (Coleoptera, Scarabaeidae, Scarabaeinae) of the Nadia district, West Bengal, with a preliminary checklist from India, pp. 361-381 in Check List 16 (2) on page 380, DOI: 10.15560/16.2.361
title: Estimating uncertainty of marine multi-species models
Creators: name: Elvarsson, Bjarki Thor
name: Stefansson, Gunnar
Publisher: name: ASC 2010 - Theme session G
Year: 2024
Subjects: Technologies and data
Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.The use of multistock/multispecies models of marine stocks in relation to stock size estimation has increased in recent years. The marine ecosystems that these models attempt to describe are complex, however, and it is computationally impossible to emulate all species interactions. Reasonable approximations need to be made, therefore, regarding the ecosystem in order to obtain results that are of interest. Stock size estimations may be sensitive to these approximations. An ecosystem simulator is presented and used to verify multispecies models such as Gadget. In particular, a two-stock two-area model is simulated and used as input to Gadget using different special assumptions. Various methods for estimating uncertainty are compared, including the use of the Hessian matrix, a bootstrap approach, and Monte-Carlo simulation.
Semileptonic B and D decays from sum rules
Creators: name: Khodjamirian, Alexander
Publisher: name: Zenodo
Year: 2019

description: The recent applications of QCD light-cone sum rules (LCSRs) to semileptonic form factors of B and D mesons and the results of Vub determinations from exclusive semileptonic decays are overviewed. The LCSR methods with pion and kaon distribution amplitudes are used as well as a more universal method with B-meson distribution amplitudes where there is a more recent development and new applications are expected. LCSRs combined with hadronic dispersion relations also supply quantitative estimates of nonresonant background in B semileptonic decays with two pions in the final state.
Prevention Through Deterrence along Egypt's Northeastern Border: Or the Politics of a Weaponized Desert
Creators: name: Morris, Ellen F.
Publisher: name: Columbia University
Year: 2017
Subjects: Border security
Emigration and immigration--Government policy
Civilization, Ancient
Egyptology

description: Throughout its history, Egypt’s governments were concerned at its northeastern border both to keep would-be fugitives in and to keep would-be migrants and invaders out. Adopting a system of structural violence that bears similarity to America’s policy of Prevention Through Deterrence on its southern border, the government fortified and policed the easiest points of entry across its official borders. Beyond that, however, it guarded water sources and relied upon the North Sinai desert to kill or grievously injure any intruders that ventured to cross it. This article considers the parallels between policies of border control in ancient Egypt and those currently practiced by the United States government with respect to Mexico. Moreover, it argues that the Sinai desert served as a shatter zone for the Pharaonic state and that local residents thus had the power either to sabotage or to bolster the efforts of a regime to secure its border.
Periodicity and area spectrum of black holes
Creators: name: Zeng, Xiao-Xiong
name: Liu, Xian-Ming
name: Liu, Wen-Biao
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The recent speculation of Maggiore that the periodicity of a black hole may be the origin of the area quantization law is confirmed. We exclusively utilize the period of motion of an outgoing wave, which is shown to be related to the vibrational frequency of the perturbed black hole, to quantize the horizon areas of a Schwarzschild black hole and a Kerr black hole. It is shown that the equally spaced area spectrum for both cases takes the same form and the spacing is the same as that obtained through the quasinormal mode frequencies. Particularly, for a Kerr black hole, the small angular momentum assumption, which is necessary from the perspective of quasinormal mode, is not employed as the general area spacing is reproduced.
description: 5 pages, 0 figures, minor modifications to the text (results unchanged)