cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Role of Nonlinear Dynamics in Quantitative Atomic Force Microscopy
Creators: name: Platz, Daniel
name: Forchheimer, Daniel
name: Tholén, Erik A.
name: Haviland, David B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Various methods of force measurement with the Atomic Force Microscope (AFM) are compared for their ability to accurately determine the tip-surface force from analysis of the nonlinear cantilever motion. It is explained how intermodulation, or the frequency mixing of multiple drive tones by the nonlinear tip-surface force, can be used to concentrate the nonlinear motion in a narrow band of frequency near the cantilevers fundamental resonance, where accuracy and sensitivity of force measurement are greatest. Two different methods for reconstructing tip-surface forces from intermodulation spectra are explained. The reconstruction of both conservative and dissipative tip-surface interactions from intermodulation spectra are demonstrated on simulated data.
description: 25 pages (preprint, double space) 7 figures
Topographic and Geographic Influences on Near-surface Temperature under Different Seasonal Weather Types in Southwestern Alberta
Creators: name: Wood, Wendy Helen
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Geography
subject: Atmospheric Sciences
subject: FOS: Earth and related environmental sciences
subject: weather
subject: Alberta
subject: temperature

description: Near-surface temperature variability is influenced by geographic and terrain characteristics. My research examines how these influences vary by weather type. This knowledge is used to determine the best methods for modelling temperature in the mountains and prairies in southwestern Alberta, using data collected as part of the Foothills Climate Array (FCA) study. A weather classification system was developed for the area using multivariate statistical analysis, and six weather patterns were identified. Missing temperature data in the FCA are gap-filled using regression equations generated using the most closely correlated station for each site, where correlations are calculated by seasonal weather type. Seasonal weather type correlations improve estimates by ~7% over monthly correlations. The biggest improvements (10 to 20%) occur for chinook and cool-wet days. Cold Arctic air days and hot anticyclonic days in summer show the lowest improvement, indicating strong within-type variability for these weather types. These weather types also show the most variable temperature lapse rates, with frequent inversions. Local weighted regression models outperform multivariate regression models by between 4 and 8% in the mountains. Daily temperature and elevation are not always strongly correlated, most notably during Arctic cold spells. This is true for both minimum and maximum temperatures in the mountains. Therefore, regression models using elevation as the only predictor perform poorly, particularly in winter months. Vertical and horizontal separation are the most important factors in choosing local neighbours, with vertical separation being most important for minimum temperatures and for winter months. Relative elevation and slope, as indictors of cold air pooling potential, influence the selection of local neighbours for minimum and mean temperature models. Spatial proximity is the most important factor determining temperature relatedness in the prairies. Minimum temperatures are strongly influenced by urban and relative elevation effects. Sites located within the city of Calgary are warmer than those in the outlying areas, and temperatures are warmer away from low lying areas. Seasonal variability is stronger than weather type variability in the prairies. Therefore, kriging is suggested as an appropriate method for estimating temperature in the prairies, with models parameterised monthly.
The Street and Democracy, Japanese Style
Creators: name: Radović, Darko
Publisher: name: Contesti. Città, territori, progetti
Year: 2017

description: The concepts of public space and urban democracy have different meanings in Japanese and Western cities. The article discusses some of the trends of local urban quality (re)production process in the context of globalization. A street of Tokyo, Kuhonbutsugawa Ryokudô, is taken into consideration, and the social components, even minute, creating the collective structure of an urban space are analyzed.
description: Contesti. Città, territori, progetti, No. 1-2 (2016)
How do people with disabilities perceive advance care planning?
Creators: name: Gray, Robin
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Education
subject: Nursing
subject: FOS: Health sciences
subject: Oncology
subject: Public Health
subject: advance care planning
subject: aging with disability
subject: disability
subject: barriers in health encounters

description: Advance care planning is the process of reflection and communication of one's preferences for future care. Technological and medical advances have made it possible for people to live longer. It is likely that many people will live with a disability. This study aimed to understand how people with physical and/or sensory disabilities perceive advance care planning. One-to-one interviews were conducted with eleven adults aged 40 - 74 years, who self-identified as having a physical and/or sensory disability. The study was designed, interviews were conducted, and data were analyzed using Charmaz’ grounded theory. Participants' two main concerns emerged: health care provider lack of awareness of disability and aging with disability. Participants adopted planning for present and future health or illness as the means to address barriers in health encounters. A theoretical approach grounded in Self-Determination Theory, Self-management, and the Collaborative Care in Chronic Illness Model was derived.
Gas dynamics in high-luminosity polarized He-3 targets using diffusion and convection
Creators: name: Dolph, P. A. M.
name: Singh, J.
name: Averett, T.
name: Kelleher, A.
name: Mooney, K. E.
name: Nelyubin, V.
name: Tobias, W. A.
name: Wojtsekhowski, B.
name: Cates, G. D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The dynamics of the movement of gas is discussed for two-chambered polarized He-3 target cells of the sort that have been used successfully for many electron scattering experiments. A detailed analysis is presented showing that diffusion is a limiting factor in target performance, particularly as these targets are run at increasingly high luminosities. Measurements are presented on a new prototype polarized He-3 target cell in which the movement of gas is due largely to convection instead of diffusion. NMR tagging techniques have been used to visualize the gas flow, showing velocities along a cylindrically-shaped target of between 5-80 cm/min. The new target design addresses one of the principle obstacles to running polarized He-3 targets at substantially higher luminosities while simultaneously providing new flexibility in target geometry.
description: First revision: 14 pages, 9 figures, submitted to Phys. Rev. C. We have shortened our discussion of the limitations inherent in various historical He-3 targets, and we have added a discussion exploring the optimal performance that can be expected from a suitably modified target based on diffusion-based mixing. A reference (Jones et. al.) was added. The results we present have not changed
Chrysis succincta sensu Linnaeus 1767
Creators: name: Paukkunen, Juho
name: Rosa, Paolo
name: Soon, Villu
name: Johansson, Niklas
name: Ødegaard, Frode
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Masaridae
Chrysis
Chrysis succincta

description: 36. Chrysis succincta Linnaeus, 1767
Chrysis succincta Linnaeus 1767: 947. Neotype ♂ (designated by Rosa, in prep.); Poland: Bromberg [= Bydgoszcz] (NMLS) (examined). Kawall 1866a: 58, Wengris 1962: 9, Tumšs & Maršakovs 1970: 92, Erlandsson 1971: 88, Soon 2004: 46, Kalniņš et al. 2007: 142, Orlovskytė et al. 2010: 152, Allearter.dk 2010.
C. succincta succincta: Rosa & Soon 2012.
Material examined. Denmark: LFM: Engestofte, 11.VII.1912, 1 ♀ (L. Jørgensen).
Distribution. Denmark, Latvia, Lithuania.—Transpalearctic: Europe, North Africa, Russian Far East (Linsenmaier 1997, Kurzenko & Lelej 2007).
Remarks. This species has often been confused with other species of the succincta group, and records in the literature have to be interpreted with caution. Apparently, Chrysis succincta (sensu stricto) has been found in the studied area only from Denmark, Latvia and Lithuania. Soon (2004) reported the species from Denmark based on a female specimen found in ZMUC (see data above). The species (sensu stricto) was already earlier reported from Denmark by Erlandsson (1971). About five locations are known from Latvia, and the occurrence has been verified by checking specimens in LMSZ in Riga. Orlovskytė et al. (2010) reported the species from Lithuania on the basis of a female specimen collected in southern Lithuania (3 km S of Puvociai). Also Wengris (1962) mentioned the species from Lithuania.
The records from Finland by Rosa & Soon (2012) and Norway by Soon (2004) are obvious mistakes. All records from Sweden (Linsenmaier 1959: 114, Erlandsson 1971: 88, Banaszak 1980: 25, Kunz 1994: 137, Soon 2004: 46, Dyntaxa 2013, Rosa & Soon 2012) are most likely based on the description of Linnaeus (1767: 947), in which Hammarby (Uppland province) is mentioned as the type locality of the species. However, no Swedish specimens of C. succincta have been found from collections. The type material of C. succincta is lost, but most likely C. succincta sensu Linnaeus is conspecific with the current interpretation of C. illigeri Lepeletier de Saint Fargeau, 1806. In order to prevent changes in nomenclature, a neotype for C. succincta has been designated in Linsenmaier’s collection in NMLS (P. Rosa, in prep.), which conforms to the current interpretation of the species.
description: Published as part of Paukkunen, Juho, Rosa, Paolo, Soon, Villu, Johansson, Niklas & Ødegaard, Frode, 2014, Faunistic review of the cuckoo wasps of Fennoscandia, Denmark and the Baltic countries (Hymenoptera: Chrysididae), pp. 1-67 in Zootaxa 3864 (1) on page 30, DOI: 10.11646/zootaxa.3864.1.1, http://zenodo.org/record/4930433
An Analysis of Scheme Transformations in the Vicinity of an Infrared Fixed Point
Creators: name: Ryttov, Thomas A.
name: Shrock, Robert
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We give a detailed analysis of the effects of scheme transformations in the vicinity of an exact or approximate infrared fixed point in an asymptotically free gauge theory with fermions. We list necessary conditions that such transformations must obey and show that, although these can easily be satisfied in the vicinity of an ultraviolet fixed point, they constitute significant restrictions on scheme transformations at an infrared fixed point. We construct acceptable scheme transformations and use these to study the scheme-dependence of an infrared fixed point, making comparison with our previous three-loop and four-loop calculations of the location of this point in the $\bar{MS}$ scheme. We also use an illustrative hypothetical exact $β$ function to investigate how accurately analyses of finite-order series expansions probe an infrared fixed point and the effect of a scheme transformation on these. Some implications of our work are discussed.
description: 21 pages, latex
Long-lived electron spin coherence in CdSe/ZnSSe self-assembled quantum dots
Creators: name: Syperek, M.
name: Yakovlev, D. R.
name: Yugova, I. A.
name: Misiewicz, J.
name: Sedova, I. V.
name: Sorokin, S. V.
name: Toropov, A. A.
name: Ivanov, S. V.
name: Bayer, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The electron spin coherence in n-doped and undoped, self-assembled CdSe/Zn(S,Se) quantum dots has been studied by time-resolved pump-probe Kerr rotation. Long-lived spin coherence persisting up to 13 ns after spin orientation has been found in the n-doped quantum dots, outlasting significantly the lifetimes of charge neutral and negatively charged excitons of 350 - 530 ps. The electron spin dephasing time as long as 5.6 ns has been measured in a magnetic field of 0.25 T. Hyperfine interaction of resident electrons with a nuclear spin fluctuations is suggested as the main limiting factor for the dephasing time. The efficiency of this mechanism in II-VI and III-V quantum dots is analyzed.
description: 9 pages, 7 figures, 1 table
La democrazia del camminare: deambulazione e affermazione dell’identità
Creators: name: Giovannoni, Giulio
Publisher: name: Contesti. Città, territori, progetti
Year: 2017

description: In this paper I argue that walking has the features of performative utterances, as defined by Austin and then clarified by Derrida and by Butler. By walking individuals make up their own identities publicly. The first section provides an historical framework. The second section reviews Augoyard’s ‘rhetoric’ of walking. The third section applies speech acts theory to walking. The conclusive section discusses some implications of this perspective.
description: Contesti. Città, territori, progetti, No. 1-2 (2016)
Multivariate NMR analysis of human disease models
Creators: name: Duggan, Gavin
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Biostatistics
subject: Epidemiology
subject: Biochemistry
subject: Metabolomics

description: In the late 1990s, the field of metabolic profiling evolved into metabolomics following the general move towards systems biology and other omics techniques. Using sensitive, analytical platforms such as NMR, metabolomics aims to gather an unbiased, broad perspective of the active biochemistry in biofluids. The result was an explosive growth in the data available to study short term physiological effects, followed perforce by the application of multivariate pattern-recognition techniques to aid in its interpretation. Given the sensitive and comprehensive nature of the technique, it quickly became apparent that any number of artifactual or spurious relationships appear in the results. To alleviate those concerns, a variety of improved experimental designs, analytical techniques, and validation paradigms can be applied. Starting with a basic experimental design, the aim of this work is to explore the ability of properly validated metabolomics to provide useful information about the metabolic shifts seen in established animal models of insulin resistance, a human disease with increasing medical significance. Different two-factor experimental designs are used to refine the results of this early study, validate the resulting hypothesis and reinforce its interpretation. Having seen significant differences in ostensibly identical batches of animals in the first three experiments, further analysis of the differences are performed. Techniques for comparing batch models, as a form of multivariate hypothesis validation, are evaluated and the ability of statistical techniques to predict or ameiliorate these “batch effects” is studied. Finally, a rat model of vitamin C deficiency, another condition with ongoing pathological implications in the third world, is studied using the same metabolomic techniques. The identified metabolic shifts are subjected to a complete pathway analysis, the context of which provides a potentially interesting insight into the regulation of an important human oxidative damage control mechanism.
Continuous Coupling of Ultracold Atoms to an Ionic Plasma via Rydberg Excitation
Creators: name: Weber, T. M.
name: Niederprüm, T.
name: Manthey, T.
name: Langer, P.
name: Guarrera, V.
name: Barontini, G.
name: Ott, H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We characterize the two-photon excitation of an ultracold gas of Rubidium atoms to Rydberg states analysing the induced atomic losses from an optical dipole trap. Extending the duration of the Rydberg excitation to several ms, the ground state atoms are continuously coupled to the formed positively charged plasma. In this regime we measure the $n$-dependence of the blockade effect and we characterise the interaction of the excited states and the ground state with the plasma. We also investigate the influence of the quasi-electrostatic trapping potential on the system, confirming the validity of the ponderomotive model for states with $20\leq n\leq 120$.
Additional file 2 of Global trends and frontiers in research on coronary microvascular dysfunction: a bibliometric analysis from 2002 to 2022
Creators: name: Gao, Jing
name: Meng, Tiantian
name: Li, Min
name: Du, Ruolin
name: Ding, Jingyi
name: Li, Anqi
name: Yu, Shanshan
name: Li, Yixiang
name: He, Qingyong
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Environmental Sciences not elsewhere classified
Science Policy

description: Additional file 2. Top 10 co-cited references related to coronary microvascular dysfunction.
Search for Zgamma events with large missing transverse energy in ppbar collisions at sqrt(s)=1.96 TeV
Creators: name: D0 Collaboration
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present the first search for supersymmetry (SUSY) in Zgamma final states with large missing transverse energy using data corresponding to an integrated luminosity of 6.2 fb-1 collected with the D0 experiment in ppbar collisions at sqrt(s)=1.96 TeV. This signature is predicted in gauge-mediated SUSY-breaking models, where the lightest neutralino is the next-to-lightest supersymmetric particle (NLSP) and is produced in pairs, possibly through decay from heavier supersymmetric particles. The NLSP can decay either to a Z boson or a photon and an associated gravitino that escapes detection. We exclude this model at the 95% C.L. for SUSY breaking scales of Lambda < 87 TeV, corresponding to neutralino masses of < 151 GeV.
description: submitted to Phys. Rev. Lett
On the road again. Le strade come luoghi della protesta e della trasformazione
Creators: name: Maggio, Marvi
Publisher: name: Contesti. Città, territori, progetti
Year: 2017

description: In many people’s opinion, when you are in an open public place (street) you can hold meetings, and experience freedom and unexpected events. This is only true for a section of our society, though. In this article, I plan to show the features of an open public place that facilitates social change. Using the Paris Commune, the women’s movement ‘Reclaim the night’ and ‘Occupy Wall Street’ as reference, I propose that an open public place (street) is suitable for the development of a democratic process if it is built on the basis of the three concepts of space, is created by urban planners who are organic intellectuals such as Gramsci, urban movements can express their views, and the lower classes participate in the planning.
description: Contesti. Città, territori, progetti, No. 1-2 (2016)
Best practices on climate resources quality documenting using QualityML
Creators: name: López, Javiera Crisóstomo
name: Torres, Alaitz Zabala
name: Òscar González-Guerrero
Publisher: name: Zenodo
Year: 2022

description: This document corresponds to deliverable 4.3 entitled "Best practices on climate resources quality documenting using “QualityML" and is based on the outcomes of the Task 4.3 "Data quality assessment and feedback mechanism for GEOSS datasets". The work starts from the results of the Data Quality Co-design Workshop (DQ Cd W, which completion correspond to MS7), since it was the starting point to know the use cases of each Pilot, with the purpose of advising on the correct documentation of the quality of their data.
 The main objective of this work is to generate a set of best practices and recommendations for data quality documentation. This objective is achieved through the information extracted from different meetings designed to:
 • Collect information on the level of experience in using and producing metadata records (with especial emphasis on quality metadata indicators) of the different partners involved in the Pilot cases, as well as their knowledge on Geospatial User Feedback systems.
 • Collect information on the processes involved in the different data product generation and validation in order to detect possible quality indicators to be recorded on metadata files.
Training Status and Not Aging Per Se, Determines the Speed of the V̇O2 Kinetics Response
Creators: name: George, Mitchell
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Epidemiology
subject: aging
subject: Exercise Training
subject: oxygen delivery
subject: vascular responsiveness

description: At the onset of moderate-intensity exercise in humans, an increase in energetic demand stimulates an increase in oxidative phosphorylation and thus oxygen provision to the muscles. However, the adjustment of oxidative phosphorylation at the onset of exercise follows an exponential profile. Recent research has attempted to understand the extent of this adjustment in young and older humans, by investigating oxygen delivery to the active tissues. Some researchers have suggested that perhaps training status and not aging per se determines the dynamic adjustment of oxygen consumption during the exercise transition. This study attempted to understand these differences using a model of aging and training. Fifty-seven men were divided into six groups based on age and activity level. The participants underwent a ramp-incremental test, a vascular occlusion test and three moderate intensity exercise transitions. The results suggest that training and not aging per se determine the V̇O2 kinetics response.
Gli spazi INTERmedi nella citta contemporanea
Creators: name: Rossi, Maddalena
Publisher: name: Contesti. Città, territori, progetti
Year: 2017

description: There is another city growing within contemporary cities, a city made of ‘intermediate spaces’. Residual spaces, uncertain and restless, which exploded, both quantitatively and qualitatively, in the new urban reality, becoming one of its characteristic features. These spaces carry with them important questions regarding the ‘right to the city’, modulated on the myriad social and environmental differences, desires and plural movements that characterize it and which, therefore, urge a new reflection on the relationship between democracy and the city.
description: Contesti. Città, territori, progetti, No. 1-2 (2016)
Polariton Condensate Transistor Switch
Creators: name: Gao, T.
name: Eldridge, P. S.
name: Liew, T. C. H.
name: Tsintzos, S. I.
name: Stavrinidis, G.
name: Deligeorgis, G.
name: Hatzopoulos, Z.
name: Savvidis, P. G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: A polariton condensate transistor switch is realized through optical excitation of a microcavity ridge with two beams. The ballistically ejected polaritons from a condensate formed at the source are gated using the 20 times weaker second beam to switch on and off the flux of polaritons. In the absence of the gate beam the small built-in detuning creates potential landscape in which ejected polaritons are channelled toward the end of the ridge where they condense. The low loss photon-like propagation combined with strong nonlinearities associated with their excitonic component makes polariton based transistors particularly attractive for the implementation of all-optical integrated circuits.
Diritto alla citta e beni comuni
Creators: name: Belingardi, Chiara
Publisher: name: Contesti. Città, territori, progetti
Year: 2017

description: The article discusses the concept of the right to the city. The expression was conceived by Henri Lefebvre, but with the passage of time it lost the connection to its author (through the superficial and careless use made of the term in the literature) and consequently also its strongly radical meaning. The article analyses the different contemporary interpretations of the concept of the right to the city and proposes some new ones.
description: Contesti. Città, territori, progetti, No. 1-2 (2016)
Peculiar motions, accelerated expansion and the cosmological axis
Creators: name: Tsagas, Christos G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Peculiar velocities change the expansion rate of any observer moving relative to the smooth Hubble flow. As a result, observers in a galaxy like our Milky Way can experience accelerated expansion within a globally decelerating universe, even when the drift velocities are small. The effect is local, but the affected scales can be large enough to give the false impression that the whole cosmos has recently entered an accelerating phase. Generally, peculiar velocities are also associated with dipole-like anisotropies, triggered by the fact that they introduce a preferred spatial direction. This implies that observers experiencing locally accelerated expansion, as a result of their own drift motion, may also find that the acceleration is maximised in one direction and minimised in the opposite. We argue that, typically, such a dipole anisotropy should be relatively small and the axis should probably lie fairly close to the one seen in the spectrum of the Cosmic Microwave Background.
description: Typos corrected. Published version
Stellar rotation and multifractality on F and M dwarf main-sequence stars
Creators: name: De Freitas, Daniel Brito
Publisher: name: Zenodo
Year: 2023
Subjects: Stellar rotation, activity, multifractality

description: In the present study, we investigate high-precision photometric time-series for the active stars from Kepler mission used the language of multifractals. We explore the potential of applying the multifractal detrended moving average analysis (MFDMA) methods to characterize the multiscale structure of these time series from a sample of 40000 dwarf stars, as well as solar TSI in two moments of solar activity: quiet and active. As a result, we find the the Hurst exponent (H) derived from this method has a strong correlation with the period derived from rotational modulation. In addition, the variability indicators reveal how this correlation follows a high activity line. We also verify that the H-index is an able parameter for distinguishing the different signs of stellar rotation that can exist between the stars with and without differential rotation, as well as the planetary signature. In summary, the results indicate that the Hurst exponent is a promising index for estimating stellar variability.
Carrier Phase Prediction of Weak Signals for High-Accuracy Navigation
Creators: name: Wang, Boxiong
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Engineering
subject: GPS
subject: weak signal
subject: carrier phase prediction

description: In this thesis, carrier phase prediction method was investigated for improving real time kinematic (RTK) positioning when signals experience temporary loss of lock. The prediction method is developed and tested using GPS vector-based and GPS/IMU ultra-tight software receivers to generate predicted phase measurements. The main error sources and characteristics of the predicted phase are analyzed and tested using simulated data. Effort is then focused on evaluating the RTK positioning accuracy applying the predicted measurements. Positioning with and without using the prediction method is compared for the GPS vector-based receiver, and ultra-tightly coupled GPS/IMU receiver, and for an RTK/IMU loosely coupled system. Tests were carried out including simulated and foliage attenuation data. The tests’ outputs were analyzed in measurement and position domain separately, and it was verified that using predicted carrier phase measurements without an IMU do not provide significant benefits, but including the IMU provides considerable benefits.
Counting lattices in simple Lie groups: the positive characteristic case
Creators: name: Golsefidy, Alireza Salehi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Group Theory (math.GR)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 22E40, 11E57

description: In this article we prove a conjecture of A. Lubotzky: let G = G_0(K), where K is a local field of characteristic p>5, G_0 is a simply connected, absolutely almost simple K-group of K-rank at least 2. We give the rate of growth of r_x(G) :={H< G| H a lattice in G; vol(G/H)
Verification of Multi-Agent Systems Using AUML Methodology
Creators: name: Mireslami, Seyedehmehrnaz
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Computer Science
subject: Multi-Agent System
subject: Verification
subject: Behaviour model

description: Verification of Multi-Agent Systems (MAS) is vital since it results in reducing design costs. Agent UML (AUML) is a methodology for MAS design that is an extension of Unified Modeling Language (UML). Although UML is used for object-oriented designs, AUML can handle the interactions among agents to deal with agent-based designs. In this thesis, AUML is employed for designing MASs and a set of conversion rules is proposed to convert AUML notations into UML diagrams to be used for MAS verification. Emergent behaviour is a critical problem in MASs that leads to unexpected behaviours due to the assumptions of behaviour model synthesis, i.e. overgeneralization. The main contributions of this thesis are: 1) Designing multi-agent systems using AUML methodology and preparing scenarios for verification. 2) Developing a component-level approach for verifying multi-agent systems preventing overgeneralization. 3) Proposing a system-level algorithm to obtain comprehensive system behaviour analysis.
Multibrane solutions in cubic superstring field theory
Creators: name: Arroyo, E. Aldo
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using the elements of the so-called $KBcγ$ subalgebra, we study a class of analytic solutions depending on a single function $F(K)$ in the modified cubic superstring field theory. We compute the energy associated to these solutions and show that the result can be expressed in terms of a contour integral. For a particular choice of the function $F(K)$, we show that the energy is given by integer multiples of a single D-brane tension.
description: 14 pages, some typos corrected
ВЛИЯНИЕ ДЕПРЕССОРНЫХ ПРИСАДОК НА ПРОЦЕСС ОБРАЗОВАНИЯ АСФАЛЬТОСМОЛОПАРАФИНОВЫХ ОТЛОЖЕНИЙ В ВЫСОКОПАРАФИНИСТОЙ НЕФТИ
Creators: name: Гурбанов Гусейн Рамазан оглы
name: Адыгезалова Мехпара Бабаверди кызы
name: Пашаева Саида Мейдан кызы
Publisher: name: Транспорт и хранение нефтепродуктов и углеводородного сырья
Year: 2020
Subjects: высокопарафинистые нефти
нефтяные дисперсные системы
депрессорные присадки
вязкость
скорость сдвига
напряжение сдвига

description: В лабораторных условиях исследованы физико-химические параметры и влияние депрессорных присадок Difron-4201 на реологические свойства образца высокопарафинистой, высоковязкой, смолистой модельной нефти. Экспериментальные исследования проведены на ротационном вискозиметре в широком диапазоне температур и градиента скорости сдвига. В результате исследования были получены зависимости напряжения сдвига от градиента скорости сдвига и зависимости эффективной вязкости от скорости сдвига. На основе данных ротационного вискозиметра построены кривые зависимости касательных напряжений сдвига от градиента скорости и эффективних вязкостей от градиента скорости. Кривые течения обрабатывались по модели Гершеля–Балкли (вязкопластичная жидкость). Установлено, что высокопарафинистая модельная нефть проявляет неньютоновское поведение до 40 °С.
Role of tumor suppressor ING4 in human cutaneous melanoma pathogenesis and progression
Creators: name: Li, Jun
Publisher: name: University of British Columbia
Year: 2010

description: ING4 was identified as a tumor suppressor in 2003 and shown to diminish colony-forming efficiency, induce p53-dependent apoptosis, and arrest cell cycle at G2/M phase. To investigate the role of ING4 in human cutaneous melanoma, we examined ING4 expression using tissue microarray and found that ING4 expression was significantly decreased in malignant melanoma compared with dysplastic nevi and reduced ING4 expression was correlated with melanoma thickness, ulceration and poor 5-year survival of melanoma patients. Multivariate analysis revealed that ING4 expression is an independent prognostic marker in melanoma patients. In melanoma cells, we found that overexpression of ING4 suppressed melanoma cell migration through RhoA-ROCK pathway and cell invasion by inhibiting MMP-2 and MMP-9 activity. We also demonstrated that ING4 inhibits endothelial cell growth and tube formation in vitro through suppressing NF- κB/IL-6 pathway. In vivo model revealed that ING4 inhibited blood vessel formation and recruitment of endothelial cells in matrigel plugs. Strikingly, we found that ING4 is induced by BRMS1. Further experiments showed that BRMS1 expression was significantly decreased in metastatic melanoma compared with primary melanoma or dysplastic nevi, and reduced BRMS1 staining was correlated with AJCC stages and worse 5-year survival of melanoma patients. Moreover, we demonstrated that BRMS1 overexpression inhibited endothelial cell growth and tube formation in vitro through suppressing NF-κB/IL-6 pathway and this BRMS1-mediated IL-6 expression is dependent on NF-κB. In vivo studies indicated that BRMS1 inhibited supportive blood vessel formation in matrigel plugs. Furthermore, we demonstrated that ING4 knockdown abrogated the suppressive effect of BRMS1 on HUVECs growth, while ING4 overexpression inhibited BRMS1 knockdown-induced angiogenesis, indicating BRMS1 as upstream regulator of ING4 in regulating tumor angiogenesis. Finally, we found that the integrate score of six-biomarker system, including ING4, BRMS1 together with other four biomarkers, showed higher variations between melanoma with and without metastasis, and predicted melanoma patients outcome more accurately than individual biomarker. In summary, reduced ING4 expression in melanoma results in deficient suppression of melanoma cell migration and invasion. With BRMS1 as the upstream regulator, ING4 inhibits NF-κB/IL-6 to modulate melanoma angiogenesis. ING4 expression can be a prognostic marker and novel target for human melanoma treatment.
On the vanishing ideal of an algebraic toric set and its parameterized linear codes
Creators: name: Sarmiento, Eliseo
name: Pinto, Maria Vaz
name: Villarreal, Rafael H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 13P25, 14G50, 94B27

description: Let K be a finite field and let X be a subset of a projective space, over the field K, which is parameterized by monomials arising from the edges of a clutter. We show some estimates for the degree-complexity, with respect to the revlex order, of the vanishing ideal I(X) of X. If the clutter is uniform, we classify the complete intersection property of I(X) using linear algebra. We show an upper bound for the minimum distance of certain parameterized linear codes along with certain estimates for the algebraic invariants of I(X).
description: J. Algebra Appl., to appear
Production of interstellar hydrogen peroxide (H2O2) on the surface of dust grains
Creators: name: Du, Fujun
name: Parise, Berengere
name: Bergman, Per
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Context. The formation of water on the dust grains in the interstellar medium may proceed with hydrogen peroxide (H2O2) as an intermediate. Recently gas-phase H2O2 has been detected in ρ Oph A with an abundance of ~1E-10 relative to H2. Aims. We aim to reproduce the observed abundance of H2O2 and other species detected in ρ Oph A quantitatively. Methods. We make use of a chemical network which includes gas phase reactions as well as processes on the grains; desorption from the grain surface through chemical reaction is also included. We run the model for a range of physical parameters. Results. The abundance of H2O2 can be best reproduced at ~6E5 yr, which is close to the dynamical age of ρ Oph A. The abundances of other species such as H2CO, CH3OH, and O2 can be reasonably reproduced also at this time. In the early time the gas-phase abundance of H2O2 can be much higher than the current detected value. We predict a gas phase abundance of O2H at the same order of magnitude as H2O2, and an abundance of the order 1E-8 for gas phase water in ρ Oph A. A few other species of interest are also discussed. Conclusions. We demonstrate that H2O2 can be produced on the dust grains and released into the gas phase through non-thermal desorption via surface exothermic reactions. The H2O2 molecule on the grain is an important intermediate in the formation of water. The fact that H2O2 is over-produced in the gas phase for a range of physical conditions suggests that its destruction channel in the current gas phase network may be incomplete.
description: Accepted for publication in A&A
ПОДГОТОВКА ВОДЫ ДЛЯ СИСТЕМ ТРАНСПОРТА И ХРАНЕНИЯ НЕФТИ И ГАЗА В УСЛОВИЯХ ВЫСОКОЦВЕТНЫХ ВОД ВОСТОЧНОЙ СИБИРИ И ДАЛЬНЕГО ВОСТОКА
Creators: name: Колчин Александр Владимирович
name: Локшина Евгения Александровна
name: Мастобаев Борис Николаевич
Publisher: name: Транспорт и хранение нефтепродуктов и углеводородного сырья
Year: 2020
Subjects: цветность
коагулирование
водоподготовка
речная вода
реагентная обработка

description: Статья посвящена подготовке высокоцветных вод для систем транспорта и хранения нефти и газа в условиях низких температур. Актуальность статьи обоснована развитием трубопроводного транспорта в районах Восточной Сибири и Дальнего Востока. Целью статьи является представление опытным путем возможности и эффективности реагентной очистки высокоцветных вод при низких температурах забираемой воды на примере реальных вод рек Лена (Восточная сибирь) и Зея (Дальний Восток).
Eating Disorder and Obesity Prevention Aimed at Shared Risk Factors: Does Sequence of Addressing Risk Factors Influence Intervention Effectiveness?
Creators: name: Mohle, Erika Dawn
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Educational Psychology
subject: Eating Disorders
subject: Obesity
subject: concurrent prevention
subject: Shared Risk Factors
subject: developmental assets

description: This study investigated a school-based prevention program aimed at five shared risk factors of eating disorders and obesity (body image, media, self-esteem, dieting, and weight-based teasing), and its effect on developmental assets. Developmental assets have been found to protect against disordered eating attitudes and behaviours. Activities corresponding to each of the shared risk factors were provided to junior high school students by trained teachers; five different intervention sequences were tested. Over two years, 255 students in total completed the Developmental Assets Profile (DAP) at three time points: before, immediately after, and two to five months following the interventions. Doubly multivariate analyses demonstrated that one sequence was most effective. In year one there were significant increases for this sequence on the internal DAP subscales. In year two these trends persisted, though were not significant. These findings suggest intervention order may be an important aspect of effective obesity and eating disorder prevention.
Is the massive young cluster Westerlund I bound?
Creators: name: Cottaar, Michiel
name: Meyer, Michael R.
name: Andersen, Morten
name: Espinoza, Pablo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. Westerlund I is the richest young cluster currently known in our Galaxy, making it one of the most massive clusters for which we can resolve the individual stars even in the crowded centre. This makes it an ideal target to assess whether massive clusters formed currently will remain bound or will disperse and contribute significantly to the stellar field population. Aims. Here we report a measurement of the radial velocity dispersion of Westerlund I to explore whether the cluster is currently in virial equilibrium, if it is in the process of collapse or if it is expanding and dispersing into the field. Methods. We obtained MIKE/Magellan high resolution optical spectra of 22 post main-sequence stars jn Westerlund I for 2 or 3 epochs with a maximum baseline of about one year. Radial velocities variations between these spectra have been measured through cross correlation. Results. We calculate the velocity dispersion from the cross correlation of five yellow hypergiants and one luminous blue variable, that show little radial velocity variations between epochs and have many spectral features in common. After taking into account the effect of small number statistics and undetected binaries, we estimate the velocity dispersion for the massive stars in Westerlund I to be 2.1 (+3.3, -2.1) km s-1. For several different assumptions concerning possible mass segregation and the elongation of the cluster, we find that Westerlund I is subvirial at the 90% confidence level. Conclusions. We can rule out that the cluster is significantly supervirial at the 97% confidence level, indicating that Westerlund I is currently bound. This implies that Westerlund I has survived past the point where any gas expulsion has taken place and is expected to survive for billions of years.
description: 8 pages, 6 figures, accepted by A&A; Corrected mass estimate quoted from Negueruela et al. (2010)
Seizures and Hypoxia in Juvenile Rats
Creators: name: Bhullar, Tanveer
Publisher: name: Graduate Studies
Year: 2016
Subjects: Psychology--Behavioral
Psychology--Cognitive
Psychology--Developmental
Psychology--Experimental

description: A short period of cerebral hypoxia can have grave, long-term effects on brain function. Seizures in adult rats cause severe, long-lasting cerebral hypoxia and acetaminophen effectively reduces the degree of hypoxia. The present study investigated the phenomenon of post-seizure hypoxia in the hippocampus of juvenile rats. Results confirmed the presence of post-seizure hypoxia in young rats while acetaminophen pre-treatment prevented this effect. In addition, the consequence of a neonatal seizure on the motor behaviour of juvenile rats was also studied. A single neonatal seizure significantly impaired performance on the rotarod task whereas pre-treatment with acetaminophen improved it. Finally, treatment with acetaminophen prior to neonatal seizures was associated a less severe hypoxic event in adult rats as compared to neonates who did not receive it. This research leads to a better understanding of how seizures alter neurological function in the developing brain and how they cause the resulting neuronal injury.
АНАЛИЗ ВЛИЯНИЯ ЭКСПЛУАТАЦИОННЫХ ФАКТОРОВ НА ПЛАВАЮЩИЕ КРЫШИ РЕЗЕРВУАРОВ
Creators: name: Саматова Гульнар Ришатовна
name: Дусалимов Марсель Эдуардович
name: Кантемиров Игорь Финсурович
name: Гулин Денис Алексеевич
Publisher: name: Транспорт и хранение нефтепродуктов и углеводородного сырья
Year: 2020
Subjects: резервуар вертикальный стальной
резервуар с плавающей крышей
снеговые нагрузки
водоспускное устройство
уплотняющий затвор

description: Данная статья посвящена актуальной на сегодняшний день проблеме необходимости повышения эксплуатационной надежности плавающих крыш вертикальных стальных резервуаров. В работе проведен анализ проблем и отказов, возникающих при эксплуатации плавающих крыш резервуаров и путей повышения их эксплуатационной надежности. В частности, рассмотрены вопросы воздействия снеговых нагрузок на плавающие крыши, проблемы, возникающие при эксплуатации уплотняющих затворов и водоспускного устройства.
Constraints on Type Ia Supernova Progenitor Companions from Early Ultraviolet Observations with Swift
Creators: name: Brown, Peter J.
name: Dawson, Kyle S.
name: Harris, David W.
name: Olmstead, Matthew
name: Milne, Peter
name: Roming, Peter W. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We compare early ultraviolet (UV) observations of Type Ia Supernovae (SNe Ia) with theoretical predictions for the brightness of the shock associated with the collision between SN ejecta and a companion star. Our simple method is independent of the intrinsic flux from the SN and treats the flux observed with the Swift/Ultra-Violet Optical Telescope (UVOT) as conservative upper limits on the shock brightness. Comparing this limit with the predicted flux for various shock models, we constrain the geometry of the SN progenitor-companion system. We find the model of a 1 M_sun red supergiant companion in Roche lobe overflow to be excluded at a 95% confidence level for most individual SNe for all but the most unfavorable viewing angles. For the sample of 12 SNe taken together, the upper limits on the viewing angle are inconsistent with the expected distribution of viewing angles for RG stars as the majority of companions with high confidence. The separation distance constraints do allow MS companions. A better understanding of the UV flux arising from the SN itself as well as continued UV observations of young SNe Ia will further constrain the possible progenitors of SNe Ia.
description: accepted version
НАПРЯЖЕННОЕ СОСТОЯНИЕ И ПРОЧНОСТЬ ЭЛЕМЕНТОВ КОНСТРУКЦИЙ ИЗ РАЗНОРОДНЫХ МАТЕРИАЛОВ
Creators: name: Гумеров Айдар Кабирович
name: Мастобаев Борис Николаевич
name: Каримов Ринат Маратович
Publisher: name: Транспорт и хранение нефтепродуктов и углеводородного сырья
Year: 2020
Subjects: механическая неоднородность
концентрация напряжений
сингулярность
трещина
механика разрушения
прочность

description: Показано, что в краевых зонах стыка соединений разнородных материалов может возникать сингулярное поле напряжений, аналогичное трещине. Это требует применения подходов механики разрушения при оценке прочности. Предложен подбор конфигурации стыка, с помощью которого можно избежать появления сингулярности и добиться более высокой прочности. Рассмотрены также особенности межфазной и поперечной трещин на границе раздела фаз в механически разнородных элементах.
Principle vs. Pragmatism: Henry Loucks and South Dakota Populism 1884-1890
Creators: name: Varsanyi, Andrew
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: History--United States
subject: South Dakota
subject: Loucks
subject: Populism

description: The People’s Party of the United States was the most successful third party in American history. The formation of that party was linked to that of local Farmers’ Alliances in a number of states. One such organization, the South Dakota Farmers’ Alliance, was founded and led by a Canadian immigrant named Henry Langford Loucks. Although historians have noted the influence of Americans like Henry Wise Wood on Canadian agrarian movements, few have considered Canadian influence south of the border. This study uses Loucks’ speeches and newspaper writings as well as secondary sources, to examine the politicization of Loucks and the Dakota Alliance. Dakota populists faced many of the same pitfalls and the same fate as the People’s Party nationally, for many of the same reasons. Trapped between pragmatism and principles, the group split and was eventually coopted by another political party. Loucks, who chose principle over pragmatism, lost political power.