cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Transition from spatial coherence to incoherence in coupled chaotic systems
Creators: name: Omelchenko, Iryna
name: Riemenschneider, Bruno
name: Hövel, Philipp
name: Maistrenko, Yuri
name: Schöll, Eckehard
Publisher: name: arXiv
Year: 2011
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We investigate the spatio-temporal dynamics of coupled chaotic systems with nonlocal interactions, where each element is coupled to its nearest neighbors within a finite range. Depending upon the coupling strength and coupling radius, we find characteristic spatial patterns such as wave-like profiles and study the transition from coherence to incoherence leading to spatial chaos. We analyze the origin of this transition based on numerical simulations and support the results by theoretical derivations identifying a critical coupling strength and a scaling relation of the coherent profiles. To demonstrate the universality of our findings we consider time-discrete as well as time-continuous chaotic models realized as logistic map and Rössler or Lorenz system, respectively. Thereby we establish the coherence-incoherence transition in networks of coupled identical oscillators.
description: 10 pages, 9 figures, full article
Mechanism of Silica Reduction by MgO during Warm Lime Softening of SAGD Produced Water
Creators: name: Zhang, Kailun
Publisher: name: Graduate Studies
Year: 2020
Subjects: subject: Magnesium Oxide
subject: Silica Reduction
subject: SAGD Water Treatment
subject: MgO Slaking
subject: Engineering--Chemical
subject: Engineering--Industrial
subject: Chemistry--Inorganic

description: Magnesia (MgO) is usually used to treat produced water from steam-assisted gravity drainage (SAGD)-based oil recovery as a silica reduction agent in a warm lime softener (WLS). This work aims to understand MgO slaking chemistry and silica reduction mechanism by slaked and non-slaked MgO. The impact of common particles in SAGD produced water including calcium, magnesium, bicarbonate, humic acid, and clay on silica reduction by MgO in the WLS was also investigated. MgO slaking process was studied by monitoring the zeta potential and pH of MgO slurries with three initial slurry densities in water (0.5%, 1% and 2%) over time. Silica reduction by slaked and non-slaked MgO was studied at SAGD WLS operating conditions (pH, temperature and contact time). Characterizations such as SEM-EDX, XRD, FTIR, TGA and XPS were performed to help understand the silica reduction mechanisms. The interactions of MgO with various particles were studied by measuring the zeta potential of the mixtures at 65oC. The zeta potential of MgO suspension depends on temperature, hydration time, and MgO slurry density with the initial zeta potential varying from +10 to +15 mV. Additionally, the influence of different particles on silica reduction by MgO at WLS operating temperature of 85oC was evaluated. Thermodynamic modeling was performed using Visual MINTEQ to understand the potential reactions during silica reduction. The understanding of silica reduction mechanism by MgO in the WLS including the impact of MgO hydration is essential for guiding onsite chemical dosages and operational process control.
Nelsonoplium jeanae Barr
Creators: name: Rifkind, Jacques
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cleridae
Nelsonoplium
Nelsonoplium jeanae

description: Nelsonoplium jeanae Barr (Fig. 7) Specimen Examined. M E X I C O: O a x a c a, Hwy. 170, 4 km N San José de Gracia, 837 m, N16°39.983′ W96°07.691′, tropical deciduous forest, 26 June 2013, flying above Croton in bloom, J. Rifkind (1, JNRC). This species has previously been recorded from Guerrero and Morelos (Barr 2006; Toledo-Hernández et al. 2015).
description: Published as part of Rifkind, Jacques, 2015, A Note on Microhabitataffinities of Mexican Checkered Beetles (Coleoptera: Cleridae), with New Distribution Records for Oaxaca, Mexico, pp. 559-564 in The Coleopterists Bulletin 69 (4) on pages 559-564, DOI: 10.1649/0010-065X-69.4.559, http://zenodo.org/record/5334854
description: {"references": ["Barr, W. F. 2006. A new genus and species of Mexican Enopliinae (Coleoptera: Cleridae). The Pan - Pacific Entomologist 82: 269 - 271."]}
Ouabain-induced activation of Phospholipase C zeta and its contributions to bovine sperm capacitation
Creators: name: Unnikrishnan, Veena
Publisher: name: Graduate Studies
Year: 2020
Subjects: subject: Bovine
subject: capaciatation
subject: fertility
subject: Ouabain
subject: PLC zeta
subject: Biological Sciences

description: The objective was to investigate involvement of testis-specific isoform of Na+/K+-ATPase ?4 (ATP1A4) in Phospholipase C zeta (PLC ?) activation during sperm capacitation and contributions of PLC ? activity to the capacitation process. Immunoprecipitation studies were done to confirm the interaction of PLC ? with ATP1A4 and to determine tyrosine phosphorylation of PLC ? during capacitation. Contributions of activated PLC ? to capacitation process were evaluated by determining phosphotyrosine content of sperm proteins (Immunoblotting), proportion of sperm acquiring hyperactivated motility (Computer-Assisted Sperm Analysis) and quantifying filamentous actin (F-actin; Flow cytometry analysis) content. Our results demonstrated that capacitation conditions promoted interaction of ATP1A4 with PLC ?, resulting in tyrosine phosphorylation of PLC ?. Incubation of sperm under capacitation conditions upregulated PLC-mediated biochemical modifications (hyperactive motility, tyrosine phosphoprotein content and increased F-actin content), suggesting that capacitation enhanced PLC activity. We inferred that interaction of ATP1A4 with PLC ? induces tyrosine phosphorylation of PLC ?, enhancing its activity and upregulation of capacitation-associated biochemical events. A capacitation-associated increase in PLC ? activity may enable sperm to initiate oocyte activation immediately after oocyte penetration (during fertilization). Since failure of oocyte activation after sperm penetration is considered a major reason for fertilization failure, results of this study may have important implications for male factor infertility treatments, e.g. improving efficacy of intracytoplasmic sperm injection (ICSI).
Activated vortex lattice transition in a superconductor with combined sixfold and twelvefold anisotropic interactions
Creators: name: Minogue, D.
name: Eskildsen, M. R.
name: Reichhardt, C.
name: Reichhardt, C. J. O.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Numerical simulations are used to examine the transition dynamics between metastable and ground state vortex lattice phases in a system with combined sixfold and twelvefold contributions to the vortex-vortex interactions. The system is initially annealed using a twelvefold anisotropy, yielding domains of two different orientations and separated by grain boundaries. The vortex-vortex interaction is then suddenly changed to a sixfold anisotropy, rendering the twelvefold state metastable. Applying a drive that mimics an oscillating magnetic field causes the metastable state to decay, indicated by the structure factor that evolves from twelve to six peaks. The results fit the behavior seen in recent small-angle neutron scattering studies of the vortex lattice in MgB2. At higher drive amplitudes, the decay exhibits a two step process in which the initial fast decrease is followed by a slower regime where avalanches or bursts are correlated with dislocation annihilation events. The results are compared to other types of metastable systems with quenched disorder that decay under a periodic external drive.
description: Accepted for publication, New J. Phys
Extremal Sasakian horizons
Creators: name: Kunduri, Hari K.
name: Lucietti, James
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We point out a simple construction of an infinite class of Einstein near-horizon geometries in all odd dimensions greater than five. Cross-sections of the horizons are inhomogeneous Sasakian metrics (but not Einstein) on S^3xS^2 and more generally on Lens space bundles over any compact positive Kaehler-Einstein manifold. They are all consistent with the known topology and symmetry constraints for asymptotically flat or globally AdS black holes.
description: 10 pages, Latex. v2: corrected minor error, results unaffected; minor improvements. v3: improved and clarified global analysis and topology (updated since published version)
A Longitudinal Examination of Attentional Biases in Pediatric Chronic Pain: Nature, Theorized Antecedents, and Consequences
Creators: name: Soltani, Sabine
Publisher: name: Graduate Studies
Year: 2020
Subjects: subject: attentional bias
subject: cognitive
subject: eye-tracking
subject: pediatric
subject: youth
subject: chronic pain
subject: anxiety
subject: depression
subject: posttraumatic stress
subject: pain catastrophizing
subject: anxiety sensitivity
subject: fear of pain
subject: attentional control
subject: Clinical

description: ObjectiveChronic pain is common in childhood and adolescence, and is associated with significant functional impairment, lower quality of life, and high psychiatric comorbidities. Theoretical models of chronic pain suggest a key role for attentional biases in the development, maintenance, and progression of chronic pain and co-occurring psychiatric symptoms. Despite their prominence in theoretical models, attentional biases for pain remain understudied and poorly understood, particularly in youth. The objective of this dissertation was to assess the nature of attentional bias for pain-related information in a clinical sample of youth with chronic pain and to examine its relationship with theorized antecedents and pain and mental health symptoms. MethodsParticipants consisted of a sample of 102 youth aged 10-18 years with chronic pain (71% female) and 53 youth without chronic pain (the control group; 50% female). Participants completed a questionnaire battery assessing pain characteristics, mental health symptoms, theorized antecedents of pediatric chronic pain, and attentional control. To assess attentional bias for pain, participants completed an eye-tracking task in which they viewed pairs of images of children depicting pain expressions of varying intensity and a neutral facial expression. Participants also completed a behavioural measure of attentional control. Pain outcomes and mental health symptoms in youth with chronic pain were assessed again at 3-month follow-up.ResultsAcross the sample, youth exhibited attentional bias for pain expressions, regardless of chronic pain status. Within-group differences in attending to varying levels of pain expressiveness were found. Attentional bias was not significantly associated with theorized antecedents, pain-related outcomes, or mental health symptoms at baseline or 3-month follow-up in youth with chronic pain. There was no evidence in support of a moderating effect of attentional control. ConclusionsThe results of this dissertation support the existence of an attentional bias for pain facial expressions in both youth with chronic pain and youth without chronic pain. Unexpectedly, attentional bias was not associated with key theorized antecedents or pain-related outcomes. These findings have significant implications for future research examining the theoretical and clinical utility of attentional biases in pediatric chronic pain.
Flow driven interfacial waves: an inviscid asymptotic study
Creators: name: Bonfils, A. F.
name: Mitra, Dhrubaditya
name: Moon, W.
name: Wettlaufer, J. S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Motivated by wind blowing over water, we use asymptotic methods to study the evolution of short wavelength interfacial waves driven by the combined action of these flows. We solve the Rayleigh equation for the stability of the shear flow, and construct a uniformly valid approximation for the perturbed streamfunction, or eigenfunction. We then expand the real part of the eigenvalue, the phase speed, in a power series of the inverse wavenumber and show that the imaginary part is exponentially small. We give expressions for the growth rates of the Miles (1957) and rippling (e.g., Young & Wolfe 2013) instabilities that are valid for an arbitrary shear flow. The accuracy of the results is demonstrated by a comparison with the exact solution of the eigenvalue problem in the case when both the wind and the current have an exponential profile.
Gravothermal Catastrophe with a Cosmological Constant
Creators: name: Axenides, Minos
name: Georgiou, George
name: Roupas, Zacharias
Publisher: name: arXiv
Year: 2012
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: We investigate the effect of a cosmological constant on the gravothermal catastrophe in the Newtonian limit. A negative cosmological constant acts as a thermodynamic `destabilizer'. The Antonov radius gets smaller and the instability occurs, not only for negative but also for positive energy values. A positive cosmological constant acts as a `stabilizer' of the system, which, in this case, exhibits a novel `reentrant behaviour'. In addition to the Antonov radius we find a second critical radius, where an `inverse Antonov transition' occurs; a series of local entropy maxima is restored.
description: some text in last section added; references added; 1 figure added
MPEC 2023-X83 : 2023 VY20
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 VY20

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Quadrupole Magnet Design based on Genetic Multi-Objective Optimization
Creators: name: Diehl, Eric
name: von Tresckow, Moritz
name: Scholtissek, Lou
name: Loukrezis, Dimitrios
name: Marsic, Nicolas
name: Müller, Wolfgang F. O.
name: De Gersem, Herbert
Publisher: name: arXiv
Year: 2022
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: This work suggests to optimize the geometry of a quadrupole magnet by means of a genetic algorithm adapted to solve multi-objective optimization problems. To that end, a non-domination sorting genetic algorithm known as NSGA-III is used. The optimization objectives are chosen such that a high magnetic field quality in the aperture of the magnet is guaranteed, while simultaneously the magnet design remains cost-efficient. The field quality is computed using a magnetostatic finite element model of the quadrupole, the results of which are post-processed and integrated into the optimization algorithm. An extensive analysis of the optimization results is performed, including Pareto front movements and identification of best designs.
description: 22 pages, 7 figures
MOESM1 of Heterologous production of levopimaric acid in Saccharomyces cerevisiae
Creators: name: Liu, Ting
name: Zhang, Chuanbo
name: Lu, Wenyu
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1: Table S1. Primers used in this study. Table S2. Primers used for cassettes construction in this study. Figure S1. Construction of gene expression cassettes and yeast strains.
Arts-based engagement ethnography with newcomer youth in Canada: Learning from their experiences.
Creators: name: Smith, Danielle J.
Publisher: name: Graduate Studies
Year: 2020
Subjects: subject: Newcomer youth
subject: School integration
subject: Social justice
subject: Arts-based engagement ethnography
subject: Education
subject: Education--Educational Psychology

description: Newcomer youth experience unique challenges when integrating into high schools in their host countries. As newcomer communities grow across Canada, high schools are faced with the increased challenge of meeting their needs. Schools are often the first point of contact for newcomer youth, and their experiences of school integration can directly impact other aspects of their integration experience, including mental and physical health, relationships with friends and family, and the ability to fit into broader society. This research started with the question: How do newcomer youth experience school integration following migration to Canada? Using an art-based engagement ethnography (ABEE), coupled with a social justice framework, our aim was to capture newcomer youth’s experiences of school integration in order to identify ways in which schools, teachers, and practitioners, as well as the broader education system, could better support these students. Using cultural probes (e.g., maps, journals, cameras), qualitative interviews, and focus groups, four participants documented their everyday experiences of school integration. An ethnographic analysis of these materials revealed three interconnected structures (challenges to school integration; responses and resiliencies in the face of challenges, and; understanding of identity during school integration) as well as specific recommendations from participants for improving the experiences of other newcomer students. These are conveyed in two manuscripts that together give both a nuanced look into the experiences of newcomer students and suggestions for practitioners and policy makers who wish to support these youth.
Vegetation responses to ecological restoration (rewetting) of abandoned block-cut peatlands in eastern Québec
Creators: name: Henstra, Steven W.
Publisher: name: University of British Columbia
Year: 2012

description: Abandoned block-cut peatlands are typified by an alternating topography of mined trenches and raised baulks. Although these sites re-vegetate densely with native bog species, Sphagnum species characteristic of undisturbed bogs are conspicuously absent and peat accumulation has not recommenced. Ecological restoration of abandoned block-cut peatlands involves blocking remnant drainage ditches, “rewetting” the residual peat body to: 1) re-establish vegetation assemblages dominated by Sphagnum, and 2) re-establish the upper, hydrologically active layer (acrotelm) that characterizes intact peatlands. This study evaluates the progress towards achieving these goals in three rewetted block-cut sites in eastern Québec. Plant species composition, above-ground biomass, and accumulated organic matter data were collected from mined trenches within rewetted and non-rewetted sectors of the study sites and used for comparison with nearby undisturbed reference bogs. Comparisons of current patterns of community vegetation structure in rewetted and non-rewetted sectors of the study sites indicated that vegetation assemblages are strongly influenced by water table position. In areas where rewetting resulted in a water table position at or just above the peat surface, rapid community scale vegetation change occurred, with widespread mortality of vascular vegetation followed by recolonization by hydrophytic ericaceous and herbaceous species, and hollow/lawn Sphagnum species (<4 years following rewetting). Despite this positive change, vegetation assemblages within rewetted sectors still differ significantly from those found in natural reference sites up to 17 years following rewetting. Changes in above-ground biomass indicated a significant reduction in tree biomass, a significant portion of which is present as dead-standing tree biomass 4 years following rewetting. Shrub biomass initially decreased, but then increased 10 years following rewetting as species compositions shifted. Accumulated organic matter shifted from a predominance of ericaceous litter to fibric peat in rewetted sectors, the depth of which is increasing as a function of time. These findings provide initial evidence of re-establishment of the acrotelm; however, additional research is required to determine whether the newly accumulated peat will provide the hydrological functions perceived of the acrotelm in undisturbed bogs. Continued detailed observation of the biotic recovery of these ecosystems will provide valuable information for future restoration endeavors.
Vacuum-Induced Symmetry Breaking of Chiral Enantiomer Formation in Chemical Reactions
Creators: name: Ke, Yanzhe
name: Song, Zhigang
name: Jiang, Qing-Dong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A material with symmetry breaking inside can transmit the symmetry breaking to its vicinity by vacuum electromagnetic fluctuations. Here, we show that vacuum quantum fluctuations proximate to a parity-symmetry-broken material can induce a chirality-dependent spectral shift of chiral molecules, resulting in a chemical reaction process that favors producing one chirality over the other. We calculate concrete examples and evaluate the chirality production rate with experimentally realizable parameters, showing the promise of selecting chirality with symmetry-broken vacuum quantum fluctuations.
description: 7+10 pages, 4+1 figures. Published version. Title changed. Comments are welcome
Hyperfine induced electron spin and entanglement dynamics in double quantum dots: The case of separate baths
Creators: name: Erbe, Bjoern
name: Schliemann, John
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a system of two strongly coupled electron spins in zero magnetic field, each of which is interacting with an individual bath of nuclear spins via the hyperfine interaction. Applying the long spin approximation (LSA) introduced in Europhys. Lett. 95, 47009 (here each bath is replaced by a single long spin), we numerically study the electron spin and entanglement dynamics. We demonstrate that the decoherence time is scaling with the bath size according to a power law. As expected, the decaying part of the dynamics decreases with increasing bath polarization. However, surprisingly it turns out that, under certain circumstances, combining quantum dots of different geometry to the double dot setup has a very similar effect on the magnitude of the spin decay. Finally, we show that even for a comparatively weak exchange coupling the electron spins can be fully entangled.
description: 9 pages, 10 figures
Insomnia During Pregnancy
Creators: name: Sedov, Ivan
Publisher: name: Graduate Studies
Year: 2020
Subjects: subject: Insomnia
subject: Pregnancy
subject: Clinical

description: The problem: Sleep has long been noted to be disturbed during pregnancy; however, investigations of insomnia as it occurs during the prenatal period have been limited. The goal of this dissertation was to develop the existing knowledge base of prenatal insomnia prevalence, course, and risk factors.Methods: A meta-analysis of prenatal insomnia literature was conducted to establish a prevalence of insomnia and moderating variables including trimester, gestational age, maternal age, depression, and anxiety. Additionally, 142 women were recruited in early-pregnancy and followed until early-postpartum. Measures of insomnia symptoms as well as mental health variables were taken every 10 weeks for a total of 40 weeks. Semiparametric group-based modeling was used to construct trajectories of insomnia symptomology over the course of pregnancy. Cross-lagged panel analysis was used to test the strength of the relationship between generalized anxiety and insomnia symptoms.Results: The results of the meta-analysis indicated that 36.7% of pregnant women reported clinically significant insomnia symptoms. Trimester moderated the prevalence such that the prevalence of insomnia symptoms was higher during the third relative to the second trimester. The trajectory analysis resulted in three groups: stable-low (42.2%), dynamic-medium (44.3%), and decreasing-high (13.4%). Women in the decreasing-high group reported clinically elevated symptoms through the course of pregnancy which decreased slightly in the postpartum. The stable-low group demonstrated consistently low insomnia symptoms. The dynamic-medium group demonstrated sub-clinical insomnia symptoms that worsened in the third trimester before decreasing in the postpartum. Anxiety and depression symptoms at baseline were predictive of trajectory membership. Additionally, experiencing consistently high insomnia symptoms throughiiithe course of pregnancy was related to higher symptoms of anxiety and depression in the postpartum. The cross-lagged panel analysis indicated that generalized anxiety symptoms predicted subsequent insomnia symptoms but not vice versa. Anxiety symptoms in late-pregnancy were not predictive of insomnia symptoms in early-postpartum.General conclusion: Insomnia symptoms are prevalent during pregnancy and characterized by several different trajectory patterns. Generalized anxiety symptoms are an important predictor of subsequent insomnia symptoms. This body of work helps to develop the current understanding of insomnia as it occurs during pregnancy.
The effective string spectrum in the orthogonal gauge
Creators: name: Aharony, Ofer
name: Field, Matan
name: Klinghoffer, Nizan
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The low-energy effective action on long string-like objects in quantum field theory, such as confining strings, includes the Nambu-Goto action and then higher-derivative corrections. This action is diffeomorphism-invariant, and can be analyzed in various gauges. Polchinski and Strominger suggested a specific way to analyze this effective action in the orthogonal gauge, in which the induced metric on the worldsheet is conformally equivalent to a flat metric. Their suggestion leads to a specific term at the next order beyond the Nambu-Goto action. We compute the leading correction to the Nambu-Goto spectrum using the action that includes this term, and we show that it agrees with the leading correction previously computed in the static gauge. This gives a consistency check for the framework of Polchinski and Strominger, and helps to understand its relation to the theory in the static gauge.
description: 21 pages
Mubrianax Lee, Sato, and Yang 1999
Creators: name: Shepard, William D.
name: Sites, Robert W.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Psephenidae
Mubrianax

description:  Mubrianax Lee, Satô, and Yang, 1999 Fig. 28, Map A Discussion. Mubrianax contains three species that are found mainly on submerged wood. It is distributed from Malaysia southeast through Indonesia and the Philippine Islands. Adults have been collected at lights. Our collections represent new country records. Material Examined. Chiang Mai Province: Doi Inthanon National Park, Mae Pan Waterfall, gravel, 1100 m, 18°31’N 98°27’E, 3 April 2003, L-442, Sites, AV, Setaphan (2L); Doi Sutep Nat. Park, 25 III 1994, Mae Sa Falls (WDS-A-1045 on reverse), William D. Shepard, leg. (1L); Suarim, 25 III 1994, Nam Mae Sa (WDS-A-1046 on reverse), William D. Shepard, leg. (6L). Petchabun Province: Nam Nao Natl. Park, 14 III 1994, Huay Ya Krua (WDS-A-1039 on reverse), William D. Shepard, leg. (3L). Phang Nga Province: Sri Phang Nga National Park, Tam Nga Waterfall, stream, gravel, 68 m, 8°58’N 98°27’E, 8 June 2006, L-926, Sites, Vitheepradit, Prommi (5L). Phitsanulok Province: Phu Hin Rongkla Natl. Park, Namtok Romglao, 1190 m, 16°59’N 101°00’E, 10 Feb 2003, CMU team (1L). Prachuap Khiri Khan Province: Amphur Hua Hin, Tumbon Huey Pheungm Ban Sak Yai, stream, 121 m, 12°30’N 99°34’E, 21 April 2002, L-358, Vitheepradit & Kirawanich (4L). Sa Kaeo Province: Pang Sida National Park, Kaeng Yai Mak, margin, 42 m, 14°03.521’N 102°04.381’E, 15 April 2004, L-628, Sites & Vitheepradit (1L). Sakhon Nakhon Province: 11 km NE Ban Kham Poem, 5 III 1994 Huai Ya (WDS-A-1027 on reverse), William D. Shepard, leg. (5L).
description: Published as part of Shepard, William D. & Sites, Robert W., 2019, Larval Psephenidae (Coleoptera: Byrrhoidea) of Thailand: Annotated List and Illustrated Key to Genera, pp. 259-282 in The Coleopterists Bulletin 73 (2) on page 264, DOI: 10.1649/0010-065X-73.2.259, http://zenodo.org/record/5454617
The role of neuronal nitric oxide synthase in human neurovascular coupling and dynamic cerebral autoregulation
Creators: name: Rosentreter, Ryan E
Publisher: name: Graduate Studies
Year: 2020
Subjects: subject: Neurovascular coupling
subject: Dynamic cerebral autoregulation
subject: neuronal nitric oxide synthase
subject: Biology--Neuroscience

description: Neurovascular coupling describes a series of processes that serve to match blood supply to neuronal metabolism within the central nervous system. Non-human research has been clear in identifying the dilatory molecule nitric oxide as a primary contributor to the neurovascular coupling mechanism. These studies have shown that of the three nitric-oxide synthase enzymes that produce nitric oxide, the neuronal isoform (nNOS) is a primary contributor to neurovascular coupling. Although extremely important to reveal mechanisms, non-human neurovascular coupling research is often conducted with the use of potentially confounding vasoactive anaesthetics, restraint, and/or by using isolated preparations which lack flow-induced vascular tone, and key inputs such as that of the autonomic nervous system. Furthering our understanding of neurovascular coupling in humans can provide a greater mechanistic understanding by obviating these concerns, and may provide insight into cerebrovascular diseases where this process is impaired.The primary objective of this project was to test the role of nNOS in neurovascular coupling, using our established non-anaesthetized, non-stressed, human model. A secondary objective was to test the role of nNOS in cerebral autoregulation, which describes cerebral blood flow buffering against changes in systemic pressure. In healthy human participants, we continuously administered s-methyl-L-thiocitrulline (SMTC) intravenously to inhibit nNOS, while measuring beat-by-beat blood pressure end-tidal oxygen/carbon dioxide, and cerebral blood velocity in the posterior and middle cerebral arteries. Cerebral autoregulation measurements were obtained during a steady-state resting condition, and neurovascular coupling was elicited using a standardized visual stimulus. As SMTC leads to an increase in blood pressure, we matched the pressor effect of this drug using intravenous administration of phenylephrine. Neurovascular coupling was also assessed in participants using a placebo condition. Order of trials were randomized and completed in a double-blind fashion.As shown in the prepared manuscript included in this thesis, SMTC blunted the rapidity of the initial neurovascular coupling response to visual stimulus, compared to a matched pressor effect from phenylephrine. Furthermore, measurement of dynamic cerebral autoregulation showed impairment, particularly in the temporal response. These findings provide novel insight into the role of nNOS in the regulation of cerebral blood flow mechanisms in humans.
Deterministic Chaos vs Integrable Models
Creators: name: Negro, Stefano
name: Popov, Fedor K.
name: Sonnenschein, Jacob
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this work we present analytical and numerical evidences that classical integrable models possessing infinitely many degrees of freedom unexpectedly exhibit some features that are typical of chaotic systems. By studying how the conserved charges change under a small deformation of the initial conditions, we conclude that the inverse scattering map is responsible for the presence of these features, in spite of the system being integrable. We investigate this phenomenon in the explicit examples of the KdV equation and the sine-Gordon model and further provide general arguments supporting this statement.
description: 19 pages, 4 figures
KIC 4247791: A SB4 system with two eclipsing binaries (2EBs)
Creators: name: Lehmann, H.
name: Zechmeister, M.
name: Dreizler, S.
name: Schuh, S.
name: Kanzler, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: KIC 4247791 is an eclipsing binary observed by the Kepler satellite mission. We wish to determine the nature of its components and in particular the origin of a shallow dip in its Kepler light curve that previous investigations have been unable to explain in a unique way. We analyze newly obtained high-resolution spectra of the star using synthetic spectra based on atmosphere models, derive the radial velocities of the stellar components from cross-correlation with a synthetic template, and calculate the orbital solution. We use the JKTEBOP program to model the Kepler light curve of KIC 4247791. We find KIC 4247791 to be a SB4 star. The radial velocity variations of its four components can be explained by two separate eclipsing binaries. In contradiction to previous photometric findings, we show that the observed composite spectrum as well as the derived masses of all four of its components correspond to spectral type F. The observed small dip in the light curve is not caused by a transit-like phenomenon but by the eclipses of the second binary system. We find evidence that KIC 4247791 might belong to the very rare hierarchical SB4 systems with two eclipsing binaries.
description: 6 pages, 8 figures, 2 tables
A Life in Colour: Exploring Canadian Veteran Experience of Posttraumatic Growth
Creators: name: Redekop, Michelle
Publisher: name: Graduate Studies
Year: 2020
Subjects: subject: Military
subject: Psychology
subject: FOS: Psychology
subject: Counselling
subject: Trauma
subject: Growth
subject: Resilience
subject: Education--Educational Psychology
subject: Military Studies

description: In this qualitative study, Canadian Veteran experience of posttraumatic growth (PTG) was explored. Using the Enhanced Critical Incident Technique (ECIT), seven Canadian Veterans, who had been deployed, had been diagnosed with posttraumatic stress disorder (PTSD), and could identify with some elements of PTG, were interviewed about factors, events, or incidents that helped, hindered, or would have helped, their experience of PTG. Contextual data, analyzed using Thematic Analysis, revealed 10 themes that described the meaning of PTG to the Veterans and their experiences preceding PTG. Data pertaining to what helped, hindered, and would have helped the Veterans in their experience of PTG, analyzed using ECIT, produced a total of 151 critical incidents, which were sorted into three overarching categories: Support, Societal Attitudes, and Individual Factors. The findings are discussed in the context of the relevant scholarly literature. Limitations, implications, and recommendations for clinicians, policy makers, and researchers are also presented.
Width and size of regular resolution proofs
Creators: name: Urquhart, Alasdair
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computational Complexity (cs.CC)
subject: Logic (math.LO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: F2.2,F4.1

description: This paper discusses the topic of the minimum width of a regular resolution refutation of a set of clauses. The main result shows that there are examples having small regular resolution refutations, for which any regular refutation must contain a large clause. This forms a contrast with corresponding results for general resolution refutations.
description: The article was reformatted using the style file for Logical Methods in Computer Science
Implementación de PIDs en América Latina REPOSITORIO DE DATOS ACADÉMICOS RDA-UNR dataverse.unr.edu.ar
Creators: name: Bongiovani, Paola
name: Salazar, Analía
name: Freán, Paulina
Publisher: name: Zenodo
Year: 2023
Subjects: PIDsLATAM23
Identificadores persistentes
Ciencia Abierta
Persistent Identifiers
Open Science
PIDs

description: “Identificadores persistentes (PIDs) y ciencia abierta en Latinoamérica” (#PIDsLATAM23) organizado por DataCite, ORCID y ROR es un evento enteramente dedicado a los identificadores persistentes y la ciencia abierta en la región. Dirigido a directores y gestores de investigación, bibliotecarios y personal técnico, en este encuentro hablamos sobre los beneficios de los identificadores persistentes y cómo su adopción contribuye a la ciencia abierta y a un ecosistema de investigación más abierto y robusto. Este evento se realiza en colaboración con la csv,conf,v7. Esta presentación de Paola Bongionvani, Paulina Freán y Analía Salazar aborda la implementación de la Universidad Nacional de Rosario de los DOIs de DataCite para la gestión de sus datos de investigación. -- "Persistent Identifiers (PIDs) and Open Science in Latin America" (#PIDsLATAM23) organized by DataCite, ORCID and ROR is an event entirely dedicated to persistent identifiers and open science in the region. Aimed at research directors and managers, librarians and technical staff, in this meeting we talk about the benefits of persistent identifiers and how their adoption contributes to open science and a more open and robust research ecosystem. This event is held in collaboration with csv,conf,v7. This presentation by Paola Bongionvani, Paulina Freán and Analía Salazar presents an overview of Universidad Nacional de Rosario DOI integration to manage their research data.
Spin noise spectroscopy under resonant optical probing conditions: coherent and non-linear effects
Creators: name: Horn, H.
name: Müller, G. M.
name: Rasel, E. M.
name: Santos, L.
name: Hübner, J.
name: Oestreich, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: High sensitivity Faraday rotation spectroscopy is used to measure the fluctuating magnetization noise of non-interacting rubidium atoms under resonant and non-resonant optical probing conditions. The spin noise frequency spectra in dependence on the probe light detuning with respect to the D2-transition reveals clear signatures of a coherent coupling of the participating electronic levels. The results are explained by extended Bloch equations including homogeneous and inhomogeneous broadening mechanisms. Our measurements further indicate that spin noise originating from excited states are governed at high intensities by collective effects.
Robust simulation design for generalized linear models in conditions of heteroscedasticity or correlation
Creators: name: Gill, Andrew
name: Warne, David J.
name: Overstall, Antony M.
name: McGrory, Clare
name: McGree, James M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: 62K05

description: A meta-model of the input-output data of a computationally expensive simulation is often employed for prediction, optimization, or sensitivity analysis purposes. Fitting is enabled by a designed experiment, and for computationally expensive simulations, the design efficiency is of importance. Heteroscedasticity in simulation output is common, and it is potentially beneficial to induce dependence through the reuse of pseudo-random number streams to reduce the variance of the meta-model parameter estimators. In this paper, we develop a computational approach to robust design for computer experiments without the need to assume independence or identical distribution of errors. Through explicit inclusion of the variance or correlation structures into the meta-model distribution, either maximum likelihood estimation or generalized estimating equations can be employed to obtain an appropriate Fisher information matrix. Robust designs can then be computationally sought which maximize some relevant summary measure of this matrix, averaged across a prior distribution of any unknown parameters.
Dissipative effects in the Effective Field Theory of Inflation
Creators: name: Nacir, Diana Lopez
name: Porto, Rafael A.
name: Senatore, Leonardo
name: Zaldarriaga, Matias
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We generalize the effective field theory of single clock inflation to include dissipative effects. Working in unitary gauge we couple a set of composite operators in the effective action which is constrained solely by invariance under time-dependent spatial diffeomorphisms. We restrict ourselves to situations where the degrees of freedom responsible for dissipation do no contribute to the density perturbations at late time. The dynamics of the perturbations is then modified by the appearance of `friction' and noise terms, and assuming certain locality properties for the Green's functions of these composite operators, we show that there is a regime characterized by a large friction term γ>> H in which the ζ-correlators are dominated by the noise and the power spectrum can be significantly enhanced. We also compute the three point function for a wide class of models and discuss under which circumstances large friction leads to an increased level of non-Gaussianities. In particular, under our assumptions, we show that strong dissipation together with the required non-linear realization of the symmetries implies |f_NL| ~ γ/(c_s^2H) >> 1. As a paradigmatic example we work out a variation of the `trapped inflation' scenario with local response functions and perform the matching with our effective theory. A detection of the generic type of signatures that result from incorporating dissipative effects during inflation, as we describe here, would teach us about the dynamics of the early universe and also extend the parameter space of inflationary models.
description: 52+20 pages, 15 figures. (Summary of main results in first approx 15 pages.) v2. Published version, to appear in JHEP
Tensor-network-assisted variational quantum algorithm
Creators: name: Huang, Junxiang
name: He, Wenhao
name: Zhang, Yukun
name: Wu, Yusen
name: Wu, Bujiao
name: Yuan, Xiao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Near-term quantum devices generally suffer from shallow circuit depth and hence limited expressivity due to noise and decoherence. To address this, we propose tensor-network-assisted parametrized quantum circuits, which concatenate a classical tensor-network operator with a quantum circuit to effectively increase the circuit's expressivity without requiring a physically deeper circuit. We present a framework for tensor-network-assisted variational quantum algorithms that can solve quantum many-body problems using shallower quantum circuits. We demonstrate the efficiency of this approach by considering two examples of unitary matrix-product operators and unitary tree tensor networks, showing that they can both be implemented efficiently. Through numerical simulations, we show that the expressivity of these circuits is greatly enhanced with the assistance of tensor networks. We apply our method to two-dimensional Ising models and one-dimensional time-crystal Hamiltonian models with up to 16 qubits and demonstrate that our approach consistently outperforms conventional methods using shallow quantum circuits.
description: 12 pages, 8 figures, 37 references
The Role of Religion and Spirituality in Immigrants’ Cancer Journeys
Creators: name: Qureshi, Maryam
Publisher: name: Graduate Studies
Year: 2020
Subjects: subject: religionspiritualityimmigrantcancercounseling psychologyphenomenology
subject: Psychology
subject: FOS: Psychology

description: In the following manuscript-based thesis we explore the role of religion and spirituality in immigrants’ cancer journeys through two interconnected manuscripts. In the introduction to the thesis we provide a broad overview of the literature in cancer-care regarding religion and spirituality to provide a rationale for focusing on immigrants and for using a critical social justice lens. In Manuscript 1, we provide a scoping review of the literature regarding religion and spirituality in immigrants’ cancer journeys. As a result of few studies and limitations found in the scoping review, in Manuscript 2 we report the findings of our interpretive phenomenological study exploring how racialized immigrants with cancer understand their experience though religion and spirituality, using a critical social justice lens. We end with a discussion of implications for counseling psychology practice, education, research methodology, policy, and future research recommendations. In exploring this topic, we hope to contribute to a larger discussion on the role of religion and spirituality in the lives of immigrants with cancer.