cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The effect of cytokinin on the chromatin landscape of arabidopsis
Creators: name: McPherson, Duncan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Cytokinin, a N⁶ substituted adenine, is a phytohormone with pleiotropic effects, including shoot activation, root inhibition, delay of leaf senescence, and tissue regeneration. Cytokinin is perceived by a histidine kinase and ultimately results in the activation of a response regulator that controls transcription of cytokinin-dependent genes. How a single signaling molecule is involved in numerous distinct developmental processes and how it integrates with other signaling pathways remain fundamental questions in plant biology. Formaldehyde-assisted isolation of regulatory elements (FAIRE) is a technique used to isolate nucleosome-depleted regions of the genome. Nucleosome depletion is characteristic of open chromatin and such sites often contain regulatory elements that control the expression of nearby genes. In this thesis, I demonstrate that FAIRE can be used to isolate cytokinin-induced open chromatin in Arabidopsis seedlings. After sequencing and peak calling, the called peaks identified in the cytokinin treated samples were found to be enriched for the motif TAGATT, which contains the known type-B RR binding motif AGAT. These peaks were additionally enriched for binding motifs of other transcription factors, suggesting that the cytokinin response can be moderated by other signals and likely act differently in different cellular contexts. Thus, the work described in this thesis has helped refine the transcriptional model of the cytokinin response in plants and provides the foundation and tools to investigate and dissect the dynamics of the cytokinin response and how it integrates with other signaling pathways.
Efficacy and Safety of adalimumab in moderate-to-severe hidradenitis suppurativa: a systematic review and meta-analysis
Creators: name: Chen, Tai Li
name: Lu, Jing Wun
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences

description: Adalimumab, a tumor necrosis factor-α inhibitor, is the first-line biologic agent in the treatment of moderate-to-severe hidradenitis suppurativa. In this study, we aimed to assess the efficacy and safety of adalimumab for patients with hidradenitis suppurativa via an evidence-based approach.
Their graves will be volcanoes: martyrdom and the construction of history in Sandinista Nicaragua, 1960-1990
Creators: name: James, Shannon
Publisher: name: University of North Carolina at Chapel Hill
Year: 2014

description: In 1979, the Sandinista National Liberation Front (FSLN) led the Nicaraguan revolution against the Somoza dictatorship. The FSLN as the ruling party began institutionalizing the revolution and consolidating its rule, immediately contending with political groups within and outside of Nicaragua, including the domestic business class, the Catholic Church, and the U.S. government. The Sandinistas faced the task of legitimating their power amid economic and political struggle. This thesis, analyzing the works of FSLN founder Carlos Fonseca, materials used in Sandinista education reform projects, and speeches, writings, and statements by Sandinista leaders in the 1980s, explores the FSLN's construction of an official historical narrative of resistance to exploitation through martyrdom and sacrifice. The party inserted the Sandinista revolution into this nationalist narrative, claiming moral superiority, authenticity, and legitimate representation of the Nicaraguan people. The martyrdom discourse incorporated the experiences of Nicaraguans under Somocista repression, contributing to the creation of official memory.
Cavity-enhanced measurements of defect spins in silicon carbide
Creators: name: Calusine, Greg
name: Politi, Alberto
name: Awschalom, David D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The identification of new solid-state defect qubit candidates in widely used semiconductors has the potential to enable the use of nanofabricated devices for enhanced qubit measurement and control operations. In particular, the recent discovery of optically active spin states in silicon carbide thin films offers a scalable route for incorporating defect qubits into on-chip photonic devices. Here we demonstrate the use of 3C silicon carbide photonic crystal cavities for enhanced excitation of color center defect spin ensembles in order to increase measured photoluminescence signal count rates, optically detected magnetic resonance signal intensities, and optical spin initialization rates. We observe up to a factor of 30 increase in the photoluminescence and ODMR signals from Ky5 color centers excited by cavity resonant excitation and increase the rate of ground-state spin initialization by approximately a factor of two. Furthermore, we show that the small excitation mode volume and enhanced excitation and collection efficiencies provided by the structures can be used to study inhomogeneous broadening in defect qubit ensembles. These results highlight some of the benefits that nanofabricated devices offer for engineering the local photonic environment of color center defect qubits to enable applications in quantum information and sensing.
description: 8 pages, 4 figures
Spain's demographic crisis and its implications for the Spanish welfare state
Creators: name: Goldberg, Janna Zasloff
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007

description: Spain is currently undergoing a demographic crisis with less than replacement fertility rates and an aging population. This crisis can be traced back to the organization and formation of the welfare state and will hold serious challenges for the future of the Spanish welfare state. The low fertility rate has many roots within the welfare state, especially the preference for familial care within the home, the precariousness of the job market for part time workers, and the cost of housing. Gender issues also affect the fertility rate in Spain as women are choosing to work and have a career rather than have children. The aging of the population and staggeringly high immigration rates also contribute to Spain's demographic crisis. The welfare state will feel the challenges of the demographic crisis in the near future unless it amends its family and work policies to accommodate couples who wish to start families.
Mirror Neuron Activity in Response to Politicians' Emotional Displays
Creators: name: Homan, Maaike
name: Hendriks, Karlijn
name: Petalas, Diamantis
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Political Science
subject: FOS: Political science
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: EEG
subject: Emotional contagion
subject: Mirror Neurons
subject: Political persuasion

description: Emotional politicians can be persuasive. An angry looking or laughing politician can spur passion in voters. However, how exactly these emotional displays affect us as voters, is not yet clear. In the current study, we examine Mirror Neuron System (MNS) activation in response to politicians' emotional displays. The MNS is linked to emotion recognition, intention understanding, and empathy. We will conduct a pre-registered lab experiment (in November 2021). We examine whether MNS activity differs in response to the emotions of in-party versus out-party politicians. Do our prior beliefs override this unconscious mechanism of emotion understanding? We record electroencephalogram (EEG) responses during the presentation of dynamic morphed emotional displays of Dutch party leaders. Overall, this study will shed light on how voters are affected by the emotional appeals of politicians.
Optimal control of complex atomic quantum systems
Creators: name: van Frank, S.
name: Bonneau, M.
name: Schmiedmayer, J.
name: Hild, S.
name: Gross, C.
name: Cheneau, M.
name: Bloch, I.
name: Pichler, T.
name: Negretti, A.
name: Calarco, T.
name: Montangero, S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Quantum technologies will ultimately require manipulating many-body quantum systems with high precision. Cold atom experiments represent a stepping stone in that direction: a high degree of control has been achieved on systems of increasing complexity, however, this control is still sub-optimal. Optimal control theory is the ideal candidate to bridge the gap between early stage and optimal experimental protocols, particularly since it was extended to encompass many-body quantum dynamics. Here, we experimentally demonstrate optimal control applied to two dynamical processes subject to interactions: the coherent manipulation of motional states of an atomic Bose-Einstein condensate and the crossing of a quantum phase transition in small systems of cold atoms in optical lattices. We show theoretically that these transformations can be made fast and robust with respect to perturbations, including temperature and atom number fluctuations, resulting in a good agreement between theoretical predictions and experimental results.
description: 12 pages, 5 figures
Globular clusters as the relics of regular star formation in 'normal' high-redshift galaxies
Creators: name: Kruijssen, J. M. Diederik
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present an end-to-end, two-phase model for the origin of globular clusters (GCs). In the model, populations of stellar clusters form in the high-pressure discs of high-redshift ($z>2$) galaxies (a rapid-disruption phase due to tidal perturbations from the dense interstellar medium), after which the galaxy mergers associated with hierarchical galaxy formation redistribute the surviving, massive clusters into the galaxy haloes, where they remain until the present day (a slow-disruption phase due to tidal evaporation). The high galaxy merger rates of $z>2$ galaxies allow these clusters to be `liberated' into the galaxy haloes before they are disrupted within the high-density discs. This physically-motivated toy model is the first to include the rapid-disruption phase, which is shown to be essential for simultaneously reproducing the wide variety of properties of observed GC systems, such as their universal characteristic mass-scale, the dependence of the specific frequency on metallicity and galaxy mass, the GC system mass-halo mass relation, the constant number of GCs per unit supermassive black hole mass, and the colour bimodality of GC systems. The model predicts that most of these observables were already in place at $z=1$-$2$, although under rare circumstances GCs may still form in present-day galaxies. In addition, the model provides important constraints on models for multiple stellar populations in GCs by putting limits on initial GC masses and the amount of pristine gas accretion. The paper is concluded with a discussion of these and several other predictions and implications, as well as the main open questions in the field.
description: 29 pages, 8 figures, 3 tables; accepted by MNRAS (1 September 2015). The model is summarised in Figure 2 and the main results are shown in Figures 3-7
Scoping Review Protocol: SBHC with a Focus on Development, Learning & Behavior Challenges
Creators: name: Cohen-Silver, Justine
name: Babiy, Zoryana
name: Lota, Maya
name: Ziegler, Carolyn
name: Freeman, Sloane
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences

description: This is a protocol for School-Based Health Centres (SBHC). We are hoping to outline the search strategy, study selection, data extraction, & synthesis & presentation of the results. This scoping review aims to evaluate the mental-health, developmental and educational outcomes of children (ages 3-12) living in urban settings & attending SBHC.
Singular values for products of two coupled random matrices: hard edge phase transition
Creators: name: Liu, Dang-Zheng
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 60B20, 62H25

description: Consider the product $GX$ of two rectangular complex random matrices coupled by a constant matrix $Ω$, where $G$ can be thought to be a Gaussian matrix and $X$ is a bi-invariant polynomial ensemble. We prove that the squared singular values form a biorthogonal ensemble in Borodin's sense, and further that for $X$ being Gaussian the correlation kernel can be expressed as a double contour integral. When all but finitely many eigenvalues of $Ω^{} Ω^{*}$ are equal, the corresponding correlation kernel is shown to admit a phase transition phenomenon at the hard edge in four different regimes as the coupling matrix changes. Specifically, the four limiting kernels in turn are the Meijer G-kernel for products of two independent Gaussian matrices, a new critical and interpolating kernel, the perturbed Bessel kernel and the finite coupled product kernel associated with $GX$. In the special case that $X$ is also a Gaussian matrix and $Ω$ is scalar, such a product has been recently investigated by Akemann and Strahov. We also propose a Jacobi-type product and prove the same transition.
description: Proof of Theorem 1.3 with more details, 35 pages, Constr Approx 2017
title: A Fighter’s Life
Creators: name: Behr, Kristin
name: Kuhn, Peter
Publisher: name: Journal of Martial Arts Research
Year: 2019

description: The paper conceptualizes a cross-cultural research program on fighters’ lives. Within the research context of research on athletes’ careers, fighters’ (auto-)biographies, disciplinary studies about fighting, and successful aging at work the authors aim at modelling typical life courses of fighters at a maximum diversity. The main data source are in-depth interviews with high- and top-level martial artists and combat sports athletes. Concerning findings, an overview is presented which can be put in the nutshell that fighters’ lives are diverse, distinct, and dynamic. Against this backdrop the authors provide an outlook on further research.
description: Journal of Martial Arts Research, Bd. 2 Nr. 2 (2019): Tagungsbeiträge 2018
Tunable magnetoresistance in an asymmetrically coupled single molecule junction
Creators: name: Warner, Ben
name: Hallak, Fadi El
name: Prüser, Henning
name: Sharp, John
name: Persson, Mats
name: Fisher, Andrew J.
name: Hirjibehedin, Cyrus F.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Phenomena that are highly sensitive to magnetic fields can be exploited in sensors and non-volatile memories. The scaling of such phenomena down to the single molecule level may enable novel spintronic devices. Here we report magnetoresistance in a single molecule junction arising from negative differential resistance that shifts in a magnetic field at a rate two orders of magnitude larger than Zeeman shifts. This sensitivity to the magnetic field produces two voltage-tunable forms of magnetoresistance, which can be selected via the applied bias. The negative differential resistance is caused by transient charging of an iron phthalocyanine (FePc) molecule on a single layer of copper nitride (Cu2N) on a Cu(001) surface, and occurs at voltages corresponding to the alignment of sharp resonances in the filled and empty molecular states with the Cu(001) Fermi energy. An asymmetric voltage-divider effect enhances the apparent voltage shift of the negative differential resistance with magnetic field, which inherently is on the scale of the Zeeman energy. These results illustrate the impact that asymmetric coupling to metallic electrodes can have on transport through molecules, and highlight how this coupling can be used to develop molecular spintronic applications.
description: 15 pages, 5 figures
Berry's connection, Kähler geometry and the Nahm construction of monopoles
Creators: name: Wong, Kenny
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study supersymmetric deformations of N = 4 quantum mechanics with a Kahler target space admitting a holomorphic isometry. We show that the twisted mass deformation generalises to a deformation constructed from matrix-valued functions of the moment map, which obey the Nahm equations. We also explain how N = 4 supersymmetry implies that the Berry connection on the vacuum bundle for this theory satisfies the BPS monopole equations. In the case where the target space is a Riemann sphere, our analysis reduces to the standard Nahm construction of monopoles. This generalises an earlier result by Sonner and Tong to the case of monopoles of magnetic charge greater than one.
description: 12 pages. v2: minor edits
Digital Discourse, Online Repression, and Cyberterrorism: Information Communication Technologies in Russia’s North Caucasus Republics
Creators: name: Tewell, Zachary Scott
Publisher: name: University of North Carolina at Chapel Hill
Year: 2014

description: Is the cyber-utopian versus cyber-repression argument the most effective way to frame the political uses of new technologies? Contemporary discourse on social media fails to highlight political dynamics in authoritarian regimes with weak state control, where independent groups can capitalize on the use of coercive force. In this thesis I will explore the various methods through which information communication technologies are utilized by civil groups, uncivil groups, and the state using Russia's North Caucasus republics as a case study. New technologies are exploited through a variety of means by an array of actors in the North Caucasus whose goals may not necessarily be democratic. Through this evidence I demonstrate that information communication technologies do not inherently aid democratization, nor do they necessarily aid the incumbent regime; rather, they are merely a conduit through which existing groups put forth their agendas regarding their ideals of the modern state.
Mean Halpha+[NII]+[SII] EW Inferred for Star-Forming Galaxies at z=5.1-5.4 Using High-Quality Spitzer/IRAC Photometry
Creators: name: Rasappu, N.
name: Smit, R.
name: Labbe, I.
name: Bouwens, R.
name: Stark, D.
name: Ellis, R.
name: Oesch, P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Recent Spitzer/InfraRed Array Camera (IRAC) photometric observations have revealed that rest-frame optical emission lines contribute signficantly to the broadband fluxes of high-redshift galaxies. Specifically, in the narrow redshift range z~5.1-5.4 the [3.6]-[4.5] color is expected to be very red, due to contamination of the 4.5-micron band by the dominant Halpha line, while the 3.6-micron filter is free of nebular emission lines. We take advantage of new reductions of deep Spitzer/IRAC imaging over the GOODS-North+South fields (Labbe+2015) to obtain a clean measurement of the mean Halpha equivalent width from the [3.6]-[4.5] color in the redshift range z=5.1-5.4. The selected sources either have measured spectroscopic redshifts (13 sources) or lie very confidently in the redshift range z=5.1-5.4 based on the photometric redshift likelihood intervals (11 sources). Our z_{phot}=5.1-5.4 sample and z_{spec}=5.10-5.40 spectroscopic sample have a mean [3.6]-[4.5] color of 0.31+/-0.05 mag and 0.35+/-0.07 mag, implying a rest-frame equivalent width EW(Halpha+[NII]+[SII]) of 665+/-53 Angstroms and 707+/-74 Angstroms, respectively, for sources in these samples. These values are consistent albeit slightly higher than derived by Stark+2013 at z~4, suggesting an evolution to higher values of the Halpha+[NII]+[SII] EW at z>2. Using the 3.6micron band, which is free of emission line contamination, we perform robust SED fitting and find a median specific star formation rate of sSFR = 17_{-5}^{+2} Gyr^{-1}, 7_{-2}^{+1}x higher than at z~2. We find no strong correlation (<2sigma) between the Halpha+[NII]+[SII] EW and the stellar mass of sources. Before the advent of JWST, improvements in these results will come through an expansion of current spectroscopic samples and deeper Spitzer/IRAC measurements.
description: 12 pages, 5 figures, 3 tables, in submission to MNRAS, including the addition of a new Figure 3 showing the impact of Halpha on the [3.6]-[4.5] colors
Interaction of the vector-meson octet with the baryon octet in effective field theory
Creators: name: Unal, Y.
name: Kucukarslan, A.
name: Scherer, S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the constraint structure of the interaction of vector mesons with baryons using the classical Dirac constraint analysis. We show that the standard interaction in terms of two independent SU(3) structures is consistent at the classical level. We then require the self-consistency condition of the interacting system in terms of perturbative renormalizability to obtain relations for the renormalized coupling constants at the one-loop level. As a result we find a universal interaction with one coupling constant which is the same as in the massive Yang-Mills Lagrangian of the vector-meson sector.
description: 18 pages, 1 figure
Komplexe Anlagen einfach simuliert : Past, Present, Future
Creators: name: Lötscher, Adrian
name: Hollenstein, Lukas
Publisher: name: ZHAW Zürcher Hochschule für Angewandte Wissenschaften
Year: 2015
Subjects: Modellierung
Komplexität
Simulation
658.5: Produktionssteuerung

description: Das Institut für Angewandte Simulation hat ein Vorgehenskonzept entwickelt, welches die detaillierte Simulation von komplexen Anlagen auf einfache Art und Weise ermöglicht. Dadurch kann die Simulation vom Anlagenverkäufer über den Anlagenplaner bis hin zum Anlagenbetreiber effizient eingesetzt werden. Im Rahmen verschiedener Simulationsstudien wurde das Konzept erfolgreich getestet und optimiert. Gegenwärtiges Highlight ist ein Simulationsbaukasten, der nun weltweit im Einsatz ist.
Reflections on the Subtitling and Dubbing of Anime: The Translation of Gender in Perfect Blue, a Film by Kon Satoshi
Creators: name: Josephy, Daniel Enrique
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: Anime
Kon Satoshi
Perfect Blue
Audiovisual Translation
Gender
Masculine Hegemony

description: Perfect Blue is an anime (Japanese animation) film directed by Kon Satoshi released in 1997. The film revolves around a female idol (a pop star) named Mima who quits her career as an idol to become an actress. She gradually loses her mind, as the pressures from her acting career, her managers, fans and a stalker catch up to her. Perfect Blue touches on the blurring line between fiction and reality, the objectification of women (and idols) as mere products, and the role of women in the idol industry. It is also a stark critique of the hegemonic masculinity and the gender roles that are imposed on women in Japanese society. This thesis presents anime as an important pop culture phenomenon with a massive influence worldwide. The thesis examines the gender stereotypes propagated by this phenomenon and proposes a that Kon’s work is different compared to other anime. This work compares how gender roles are portrayed in the different versions: The Japanese original and the US English subtitles and dubbing. Methodologically, the analysis relies on close observation of the use of the Japanese first and second person pronouns and sentence-final particles in the characters’ language, since “the use of these features is known to be highly gender-dependent” (Hiramoto 2013, 55). This study comes to the conclusion that the subtitles and the dubbing provide a relatively close rendering of gender of the Japanese text, even if the linguistic resources of English do not allow for the translation of gendered Japanese pronouns and sentence-final particles. This means that the subtitles and dubbings maintain the feminist message Kon wanted to give in his film. The study concludes by stressing the importance of taking into account the use of specific pronouns and sentence-final particles when translating Japanese, as these particles are gender-loaded. It also emphasises the importance of being critical of anime’s hegemonic masculinity, and argues that Kon goes against hegemony by portraying a strong and independent female character.
Tops as Building Blocks for G2 Manifolds
Creators: name: Braun, Andreas P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A large number of examples of compact $G_2$ manifolds, relevant to supersymmetric compactifications of M-Theory to four dimensions, can be constructed by forming a twisted connected sum of two appropriate building blocks times a circle. These building blocks, which are appropriate $K3$-fibred threefolds, are shown to have a natural and elegant construction in terms of tops, which parallels the construction of Calabi-Yau manifolds via reflexive polytopes.
description: 43 pages, v2: typos corrected, improved discussion, references added, v3: reorganized and improved parts of the discussion, fixed typos
An Oral Health Survey of the Lumbee Tribe in Southeastern North Carolina
Creators: name: Wells, Pamela Luann
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: The purpose of this study was to assess the oral health knowledge, oral health-related quality of life (QOL) and access to dental care issues of the Lumbee tribe in Robeson County, North Carolina (NC). Lumbee Indians attending the Lumbee Homecoming Festival volunteered to complete a self-administered survey. This study revealed that there was low knowledge regarding the link between oral and systemic health. Many believed that it is natural to loose your teeth as you get older. Oral health-related QOL was affected by oral pain, altered taste, and feeling self-conscious because of oral problems. Barriers to accessing dental care included being unable to find a dentist, not being able to miss work to go to the dentist, dental fear, and cost of dental services.
New Representations of the Perturbative S-Matrix
Creators: name: Baadsgaard, Christian
name: Bjerrum-Bohr, N. E. J.
name: Bourjaily, Jacob L.
name: Caron-Huot, Simon
name: Damgaard, Poul H.
name: Feng, Bo
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a new framework to represent the perturbative S-matrix which is well-defined for all quantum field theories of massless particles, constructed from tree-level amplitudes and integrable term-by-term. This representation is derived from the Feynman expansion through a series of partial fraction identities, discarding terms that vanish upon integration. Loop integrands are expressed in terms of "Q-cuts" that involve both off-shell and on-shell loop-momenta, defined with a precise contour prescription that can be evaluated by ordinary methods. This framework implies recent results found in the scattering equation formalism at one-loop, and it has a natural extension to all orders---even non-planar theories without well-defined forward limits or good ultraviolet behavior.
description: 4+1 pages, 4 figures
Self-replication with magnetic dipolar colloids
Creators: name: Dempster, J. M.
name: Zhang, R.
name: de la Cruz, M. Olvera
Publisher: name: arXiv
Year: 2015
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: Colloidal self-replication represents an exciting research frontier in soft matter physics. Currently, all reported self-replication schemes involve coating colloidal particles with stimuli-responsive molecules to allow switchable interactions. In this paper, we introduce a scheme using ferromagnetic dipolar colloids and pre-programmed external magnetic fields to create an autonomous self-replication system. Interparticle dipole-dipole forces and periodically varying weak-strong magnetic fields cooperate to drive colloid monomers from the solute onto templates, bind them into replicas, and dissolve template complexes. We present three general design principles for autonomous linear replicators, derived from a focused study of a minimalist sphere-dimer magnetic system in which single binding sites allow formation of dimeric templates. We show via statistical models and computer simulations that our system exhibits nonlinear growth of templates and produces nearly exponential growth (low error rate) upon adding an optimized competing electrostatic potential. We devise experimental strategies for constructing the required magnetic colloids based on documented laboratory techniques. We also present qualitative ideas about building more complex self-replicating structures utilizing magnetic colloids.
description: 12 pages, 6 figures
Investigating the Behaviour of Glulam Beams and Columns Subjected to Simulated Blast Loading
Creators: name: Lacroix, Daniel Normand
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: glulam
engineered wood products
high strain-rates
beams
columns
material model
FRP retrofit
dynamic increase factors
axial load
combined axial and out-of-plane blast loading

description: The advancement in manufacturing technologies to produce high-performing engineered wood products (EWP) has allowed wood to be utilized beyond the traditional low-rise light-frame structures and to become a viable material option for much larger structures. Although glued-laminated timber (glulam) is included as a material option in the current blast code (CSA, 2012), its response to blast loading is not yet well documented. An experimental program investigating the behaviour of seventy glulam beams and columns was developed with focus on establishing the dynamic characteristics of glulam beams and columns with and without the effect of FRP reinforcement. A shock tube capable of simulating high strain rates similar to those experienced during blast was used. Thirty-eight beams with three different cross-sections were tested statically and dynamically to establish the high strain rate effects (dynamic increase factor). Six columns were also tested dynamically with axial load levels ranging from 15 to 75 % of the columns’ compression design capacity. Different retrofit configurations varying from simple tension reinforcement to U-shaped tension reinforcement with confinement using both unidirectional and bi-directional FRP were investigated on a total of twenty-six beams. A procedure capturing the strain-rate effects, variable axial load and FRP, was developed and found to be capable of predicting the flexural behaviour of the beams up to maximum resistance with reasonable accuracy when compared to experimentally obtained static and dynamic resistance curves. Implications on the design of both retrofitted and unretrofitted specimens are also discussed.
Entanglement via a three-well Bose-Hubbard system and via an optical beamsplitter
Creators: name: Olsen, M. K.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We compare and contrast the entangling properties of a three-well Bose-Hubbard model and an optical beamsplitter. The coupling between the different modes is linear in both cases, and we may identify two output modes. Obvious differences are that our Bose-Hubbard model, with only the middle well initially occupied, does not have a vacuum input port, there is no equivalent of a collisional, $χ^{(3)}$ nonlinearity with the beamsplitter, and the results of the Bose-Hubbard model show a time-dependence. In the non-interacting case, we obtain analytic solutions and show that, like a beamsplitter, the Bose-Hubbard system will not produce entanglement for classical initial states. We also show that whether inseparability or entanglement are detected depends sensitively on the criteria measured, with different criteria giving contradictory predictions.
description: 16 pages, 6 figures, theory. arXiv admin note: text overlap with arXiv:1507.08451, arXiv:1506.03673
The landscape ecology of bees visiting squash in a heavily forested temperate region
Creators: name: Urbanowicz, Christine
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: There is increasing interest to understand how to conserve bees that pollinate crops. My research examined local and landscape-scale effects on the diversity and abundance of bees visiting yellow squash and zucchini flowers in the piedmont of North Carolina. Explanatory models were constructed using variables related to field-level floral resources, landscape composition, and landscape configuration. Bee diversity, measured as species richness, was positively correlated with the abundance of flowers in a field and the clumpiness of wooded land and was negatively correlated with proportion of developed area around a field. The abundance of bees visiting zucchini, measured as visitation rate, was negatively correlated with the proportion of wooded land around a field, but no models could explain variation in visitation rate for yellow squash. This research demonstrates that efforts to conserve bee diversity need to consider the importance of land-management decisions made within a field and across a landscape.
SYNOPTIC MONITORING FOR MIGRANT INSECT PESTS IN GREAT BRITAIN AND WESTERN EUROPE. I ESTABLISHING EXPECTED VALUES FOR SPECIES CONTENT, POPULATION STABILITY AND PHENOLOGY OF APHIDS AND MOTHS, Rothamsted Experimental Station Report for 1980 Part 2
Creators: name: L. R. TAYLOR, R. A. FRENCH, I. P .WOIWOD, MAUREEN J. DUPUCH AND JOAN NICKLEN
Publisher: name: Lawes Agricultural Trust
Year: 1981
Subjects: subject: rothamsted research
subject: aphids
subject: migratory pests
subject: population dynamics
subject: phenology

description: Scanned PDF of SYNOPTIC MONITORING FOR MIGRANT INSECT PESTS IN GREAT BRITAIN AND WESTERN EUROPE. I ESTABLISHING EXPECTED VALUES FOR SPECIES CONTENT, POPULATION STABILITY AND PHENOLOGY OF APHIDS AND MOTHS, part of Rothamsted Experimental Station Report for 1980 Part 2
Moduli spaces of $Λ$-modules on abelian varieties
Creators: name: Franco, Emilio
name: Tortella, Pietro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14D21, 14J60

description: We study the moduli space $\mathbf{M}_X(Λ, n)$ of semistable $Λ$-modules of vanishing Chern classes over an abelian variety $X$, where $Λ$ belongs to a certain subclass of $D$-algebras. In particular, for $Λ= \mathcal{D}_X$ (resp. $Λ= \mathrm{Sym}^\bullet \mathcal{T}X$) we obtain a description of the moduli spaces of flat connections (resp. Higgs bundles). We give a description of $\mathbf{M}_X(Λ, n)$ in terms of a symmetric product of a certain fibre bundle over the dual abelian variety $\hat{X}$. We also give a moduli interpretation to the associated Hilbert scheme as the classifying space of $Λ$-modules with extra structure. Finally, we study the non-abelian Hodge theory associated to these new moduli spaces.
The Evolution of Inner Disk Gas in Transition Disks
Creators: name: Hoadley, Keri
name: France, Kevin
name: Alexander, Richard D
name: McJunkin, Matthew
name: Schneider, Christian
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Investigating the molecular gas in the inner regions of protoplanetary disks provides insight into how the molecular disk environment changes during the transition from primordial to debris disk systems. We conduct a small survey of molecular hydrogen (H$_2$) fluorescent emission, using 14 well-studied Classical T Tauri stars at two distinct dust disk evolutionary stages, to explore how the structure of the inner molecular disk changes as the optically thick warm dust dissipates. We simulate the observed HI-Lyman $α$-pumped H$_2$ disk fluorescence by creating a 2D radiative transfer model that describes the radial distributions of H$_{2}$ emission in the disk atmosphere and compare these to observations from the Hubble Space Telescope. We find the radial distributions that best describe the observed H$_2$ FUV emission arising in primordial disk targets (full dust disk) are demonstrably different than those of transition disks (little-to-no warm dust observed). For each best-fit model, we estimate inner and outer disk emission boundaries (r$_{in}$ and r$_{out}$), describing where the bulk of the observed H$_2$ emission arises in each disk, and we examine correlations between these and several observational disk evolution indicators, such as n$_{13-31}$, r$_{in,CO}$, and the mass accretion rate. We find strong, positive correlations between the H$_2$ radial distributions and the slope of the dust SED, implying the behavior of the molecular disk atmosphere changes as the inner dust clears in evolving protoplanetary disks. Overall, we find that H$_2$ inner radii are $\sim$4 times larger in transition systems, while the bulk of the H$_2$ emission originates inside the dust gap radius for all transitional sources.
description: 18 pages, 14 figures, Accepted for publication in ApJ
Topology of certain quotient spaces of stiefel manifolds
Creators: name: Basu, Samik
name: Subhash, B.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: We compute the cohomology of the right generalised projective Stiefel manifolds and use it to find bounds on the rank of the complementary bundle for certain vector bundles. Further the cohomology computations are also used to find bounds on the span and on the immersibility of the manifolds in certain cases.
III. THE EXPERIMENTS MADE FROM 1957 AND 1962, THE SOILS AND HISTORIES OF THE SITES ON WHICH THEY WERE MADE , Rothamsted Experimental Station Report for 1969 Part 2
Creators: name: A. E. JOHNSTON And R. G. WARREN
Publisher: name: Lawes Agricultural Trust
Year: 1970
Subjects: subject: rothamsted research

description: Scanned PDF of III. THE EXPERIMENTS MADE FROM 1957 AND 1962, THE SOILS AND HISTORIES OF THE SITES ON WHICH THEY WERE MADE , part of Rothamsted Experimental Station Report for 1969 Part 2
Effectiveness of Indoor Air Purification Intervention in Improving Cardiovascular Health: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
Creators: name: Xia, Xi
name: Chan, Ka
name: Qiu, Hong
name: Li, Zhiyuan
name: Yim, Steve
name: Ho, Kin-Fai
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Education
subject: Indoor Air Purification Intervention
subject: Meta-analysis

description: Air pollution is the leading environmental risk factor for ill health, estimated to account for 4.9 million deaths and 147 million years of healthy life lost in 2017. As people spend the majority of their time indoors, there has been great concerns about the ubiquitous exposure to indoor air pollution, particularly fine particulate matter (PM2.5). Accumulating evidence suggests that both short- and long-term exposure to PM2.5 are associated excess risks of cardiovascular disease (CVD) and mortality. The use of air purifiers to reduce indoor air pollution exposure is increasingly recommended in air quality control strategies, but the cardiovascular impact of such intervention remain to be investigated in randomized controlled trials (RCTs). Therefore, we aimed to conduct a systematic review and meta-analyses to synthesize the results of all randomized controlled trials assessing the cardiovascular effects of indoor air purification interventions.
Plant Nutrients in Broadbalk Soils, Rothamsted Experimental Station Report for 1968 - Part 2
Creators: name: A. E. JOHNSTON
Publisher: name: Lawes Agricultural Trust
Year: 1969
Subjects: subject: rothamsted research
subject: broadbalk long-term experiment

description: Scanned PDF of Plant Nutrients in Broadbalk Soils, part of Rothamsted Experimental Station Report for 1968 - Part 2
Layabouts: Profile of a community band [Album Review] No masters!
Creators: name: Alexander, Don
Publisher: name: Artons Cultural Affairs Society and Publishing Inc.
Year: 1986
Subjects: subject: Sound recordings--Reviews
subject: Music--Reviews
subject: Musical criticism
subject: Rock groups--Detroit (Mich.)

description: Review of the album "No masters!" by the Layabouts (Detroit: [Non-Serviam Productions], 1985).
Validation of LAMOST Stellar Parameters with the PASTEL Catalog
Creators: name: Gao, Hua
name: Zhang, Huawei
name: Xiang, Maosheng
name: Huang, Yang
name: Liu, Xiaowei
name: Luo, Ali
name: Zhang, Haotong
name: Wu, Yue
name: Zhang, Yong
name: Li, Guangwei
name: Du, Bing
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Recently the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) published its first data release (DR1), which is ranked as the largest stellar spectra dataset in the world so far. We combine the PASTEL catalog and SIMBAD radial velocities as a testing standard to validate the DR1 stellar parameters (effective temperature $T_{\mathrm{eff}}$, surface gravity $\log g$, metallicity $\mathrm{[Fe/H]}$ and radial velocity $V_{\mathrm{r}}$). Through cross-identification of the DR1 catalogs and the PASTEL catalog, we obtain a preliminary sample of 422 stars. After removal of stellar parameter measurements from problematic spectra and applying effective temperature constraints to the sample, we compare the stellar parameters from DR1 with those from PASTEL and SIMBAD to prove that the DR1 results are reliable in restricted $T_{\mathrm{eff}}$ ranges. We derive standard deviations of 110 K, 0.19 dex, 0.11 dex and 4.91 $\mathrm{km\,s^{-1}}$ , for $T_{\mathrm{eff}}$, $\log g$, $[\mathrm{Fe/H}]$ when $T_{\mathrm{eff}}<8000\,\mathrm{K}$, and for $V_{\mathrm{r}}$ when $T_{\mathrm{eff}}<10000\,\mathrm{K}$, respectively. Systematic errors are negligible except for that of $V_{\mathrm{r}}$. Besides, metallicities in DR1 are systematically higher than those in PASTEL, in the range of PASTEL $[\mathrm{Fe/H}]
description: 9 pages, 4 figures
Preferential Trade Agreements and Firms' Market-Entry Mode Decisions
Creators: name: Stern, Kai
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: When firms internationalize, they select from a menu of entry modes. Firms' choice of entry mode is partially dependent on host country external uncertainty, one component of which is policy risk. Extant political science work on the determinants of cross-border investment has tended to ignore variation in entry modes, focusing instead on foreign direct investment (FDI) flows. Redirecting the conversation from aggregated FDI flows to firm-level internationalization decisions, I argue that preferential trade agreements (PTAs), as a signal of commitment to certain policies, lower policy risk and facilitate high-risk entry modes. Further, I theorize that PTA chapters targeted at certain sectors should primarily impact firms in those sectors. Using firm-level transactions data from up to 146 non-OECD countries from 1990-2017 and multilevel logistic regression, I find that PTAs are strongly associated with riskier entry modes and that there is a moderate sector-specific effect for services chapters.
Нарушения сердечного ритма у больных с хронической сердечной недостаточностью обусловленной ишемической болезнью сердца в зависимости от фракции выброса левого желудочка
Creators: name: Dadashova, Gulnaz
Publisher: name: Zenodo
Year: 2023

description: Нарушения сердечного ритма, в частности фибрилляция предсердий (ФП), часто осложняют течение хронической сердечной недостаточности (ХСН). Состояние сократительной способности сердца способно усугубить возникновение аритмий, однако исследования в данном направлении остаются актуальными. Цель исследования. Проведен сравнительный анализ встречаемости различных нарушений ритма у больных ХСН II-III функциональных классов (ФК), обусловленной ишемической болезнью сердца (ИБС) с различными значениями фракции выброса (ФВ) левого желудочка (ЛЖ) сердца.
title: Abstracts of the 6th Annual Conference of the Committee for Martial Arts Studies in the German Association of Sport Science September 28-30, 2017 in Lunenburg on “Martial Arts as a Challenge for Inter- and Transdisciplinary Research”
Creators: name: Kuhn, Peter
name: Happ, Sigrid
Publisher: name: Journal of Martial Arts Research
Year: 2018

description: Abstracts of the 6thAnnual Conference of the Committee for Martial Arts Studies in the German Association of Sport Science September 28-30, 2017 in Lunenburg on “Martial Arts as a Challenge for Inter- and Transdisciplinary Research”
description: Journal of Martial Arts Research, Bd. 1 Nr. 2 (2018): Tagungsbeiträge 2017
Bacterial hydrodynamics
Creators: name: Lauga, Eric
Publisher: name: arXiv
Year: 2015
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Bacteria predate plants and animals by billions of years. Today, they are the world's smallest cells yet they represent the bulk of the world's biomass, and the main reservoir of nutrients for higher organisms. Most bacteria can move on their own, and the majority of motile bacteria are able to swim in viscous fluids using slender helical appendages called flagella. Low-Reynolds-number hydrodynamics is at the heart of the ability of flagella to generate propulsion at the micron scale. In fact, fluid dynamic forces impact many aspects of bacteriology, ranging from the ability of cells to reorient and search their surroundings to their interactions within mechanically and chemically-complex environments. Using hydrodynamics as an organizing framework, we review the biomechanics of bacterial motility and look ahead to future challenges.
description: to appear in: Annu. Rev. Fluid Mech. (2016) 48
New fixed points of the renormalisation group for two-body scattering
Creators: name: Birse, M. C.
name: Epelbaum, E.
name: Gegelia, J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We outline a separable matrix ansatz for the potentials in effective field theories of nonrelativistic two-body systems with short-range interactions. We use this ansatz to construct new fixed points of the renormalisation-group equation for these potentials. New fixed points indicate a much richer structure than previously recognized in the RG flows of simple short-range potentials.
description: 6 pages, no figures