cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Noteropagus d'Orchymont 1919
Creators: name: Angus, Robert B
name: Sadílek, David
name: Shaarawi, Fatma
name: Dollimore, Hayley
name: Liu, Hsing-Che
name: Seidel, Matthias
name: Sýkora, Vít
name: Fikáček, Martin
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Hydrophilidae
Noteropagus

description: GENUS NOTEROPAGUS DʼORCHYMONT, 1919 (FIG. 14A–B, G) Material examined: Noteropagus sp.: (unidentified species illustrated in Fig. 14G). 1 male (NMPC): Taiwan: Nantou County, Yushan National Park, Dongbu Scenic Area, Dong Bu 5.4 km SE of Heshe, rotten banana trunks on the margin of a village, 23.5610°N 120.93044°E, 15.v.2018, M. Fikáček, W.-R. Liang, H.-C. Liu & Y. Minoshima lgt. (2018-TW33). Karyotype: 2 n = 22. Two nuclei from testis show probably the meiotic metaphase I with 11 bivalents. The sex bivalent cannot be recognized, although the smallest element in Figure 14A appears asymmetrical. The remaining bivalents suggest that the autosomes are all more or less similar in size.
description: Published as part of Angus, Robert B, Sadílek, David, Shaarawi, Fatma, Dollimore, Hayley, Liu, Hsing-Che, Seidel, Matthias, Sýkora, Vít & Fikáček, Martin, 2021, Karyotypes of water scavenger beetles (Coleoptera: Hydrophilidae): new data and review of published records, pp. 958 in Zoological Journal of the Linnean Society 192 (3) on page 958, DOI: 10.1093/zoolinnean/zlaa105, http://zenodo.org/record/5301134
Physical insight into reduced surface roughness scattering in strained silicon inversion layers
Creators: name: Bowen, Chris
name: Hatcher, Ryan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A seemingly anomalous enhancement of electron mobility in strained silicon inversion layers at high sheet densities has exposed a conspicuous gap between device physics theory and experiment in recent years. We show that the root of this discrepancy is due to a bulging effect in the electron Δ4 wavefunction at the silicon surface. This renders Δ4 electrons more susceptible to perturbations in surface structure thereby increasing surface roughness scattering for these states. Strain engineering utilized by the CMOS industry reduces the relative occupancy of the Δ4 states resulting in less overall surface roughness scattering in the channel. We show that the origin of this effect can be explained by moving beyond the effective mass approximation and contrasting the properties of the Δ2 and Δ4 wavefunctions in a representation that comprehends full crystal and Bloch state symmetry.
description: 5 pages, 6 figures. Submitted to Applied Physics Letters on 4 April 2012. Updated
Modelling Water-Hydrocarbon Mutual Solubility in Multiphase Equilibrium Calculations
Creators: name: Yu, Hongbo
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Computer Science
subject: Energy
subject: Engineering--Chemical
subject: Engineering--Petroleum
subject: Numerical Simulation
subject: Reservoir Simulation

description: Since the 1980s, multiphase equilibrium calculations have been well developed. Usually, water is excluded from the calculations although the amount of dissolved hydrocarbons and CO2 in water can be substantial. There are several published four-phase flash calculation methods using a single cubic EOS to model both hydrocarbon and aqueous phases, but the predicted gas solubility in water modeled from an EOS is orders of magnitude lower than experimental data. In this thesis, a generalized multiphase flash calculation algorithm is developed to address both the multiple phase behavior of a CO2/crude oil system and water-hydrocarbon mutual solubility simultaneously. The hydrocarbon phases are modeled with a cubic EOS, and the water phase is modelled with Henry’s law constants. Our results are compared with experimental data and calculation results from commercial software to validate the algorithm in different types of equilibria.
Additional file 1 of First non-invasive magnetic phrenic nerve and diaphragm stimulation in anaesthetized patients: a proof-of-concept study
Creators: name: Panelli, Alessandro
name: Bartels, Hermann Georges
name: Krause, Sven
name: Verfuß, Michael André
name: Grimm, Aline Michèle
name: Carbon, Niklas Martin
name: Grunow, Julius J.
name: Stutzer, Diego
name: Niederhauser, Thomas
name: Brochard, Laurent
name: Weber-Carstens, Steffen
name: Schaller, Stefan J.
Publisher: name: figshare
Year: 2023
Subjects: subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy

description: Additional file 1. Appendix with additional methods as well as supplementary figures and tables.
Effective electric and magnetic properties of metasurfaces in transition from crystalline to amorphous state
Creators: name: Albooyeh, M.
name: Morits, D.
name: Tretyakov, S. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this paper we theoretically study electromagnetic reflection, transmission, and scattering properties of periodic and random arrays of particles which exhibit both electric-mode and magnetic-mode resonances. We compare the properties of regular and random grids and explain recently observed dramatic differences in resonance broadening in the electric and magnetic modes of random arrays. We show that randomness in the particle positioning influences equally on the scattering loss from both electric and magnetic dipoles, however, the observed resonance broadening can be very different depending on the absorption level in different modes as well as on the average electrical distance between the particles. The theory is illustrated by an example of a planar metasurface composed of cut-wire pairs. We show that in this particular case at the magnetic resonance the array response is almost not affected by positioning randomness due to lower frequency and higher absorption losses in that mode. The developed model allows predictions of behavior of random grids based on the knowledge of polarizabilities of single inclusions.
description: 13 pages, 5 figures, and submitted to PRB
Quantitative Risk Analysis of Obstacle Limitation Standards
Creators: name: Sandaradura, Amila Silva
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Engineering--Civil
subject: Airport
subject: Design Standards
subject: Risk analysis

description: Obstacle limitation surfaces (OLS) are the main safeguard against objects that can pose a hazard to aircraft operations at and around the airports. The standard dimensions of the most of these surfaces were estimated using the pilot's experience at the time when they were included in to the standard documents. As a result, some of these standards may have been overestimated while others may not provide an adequate level of safety. With airports moving to the Safety Management System (SMS) approach to design and operations safety, proper evaluation of the level of safety provided by OLS at specific sites becomes great importance to airport operators.There is no published evidence, however, for the estimation of the safety level provided by the existing OLS standards. Moreover, the rationale used by the ICAO to establish existing OLS standards is not readily available in the standard documents. Therefore this study attempts to collect actual flight path data using information provided by air traffic control radars and construct a methodology to assess the probability of aircraft deviating from their intended/protected path. The extension of the developed methodology can be used to estimate the OLS dimensions that provide an acceptable safety level for the aircraft operations. This will be helpful to estimate safe and efficient standard dimensions of the OLS and assess the risk level of objects to the aircraft operations around airports. In order to assess the existing standards and show the applications of the methodology, three case studies were conducted using aircraft data collected from Ottawa (CYOW), Calgary (CYYC) and Edmonton (CYEG) International Airports.
Regulation of Environmental Pollution in the Nigerian Oil and Gas Industry: The Need for an Alternative Approach
Creators: name: Ugbaja, Francesca
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Law
subject: FOS: Law
subject: Engineering--Environmental

description: Oil pollution from spillages unquestionably threatens the existence of flora and fauna and their habitats. This phenomenon has negatively impacted the culture and political structure of many industrial groups and has been a source of health hazard for humans. The result of this malaise is that territorial waters and the lands are rendered unfit for marine, plant and human lives. In response to this vice, the Nigerian government has enacted legislations aimed at controlling oil spills and curbing environmental pollution. However, the Nigerian legal regime has proved largely inadequate to tackle the menace of oil spills and resultant environmental destruction. This thesis therefore examines in comparative terms the Nigerian and Alberta legal regimes on oil spills resulting in environmental pollution. The intention in this thesis is to critique the laws in Nigeria as inadequate in combating oil spills and to advocate for effective enforcement of environmental laws.
Steady-state parameter sensitivity in stochastic modeling via trajectory reweighting
Creators: name: Warren, Patrick B.
name: Allen, Rosalind J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Biological Physics (physics.bio-ph)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Parameter sensitivity analysis is a powerful tool in the building and analysis of biochemical network models. For stochastic simulations, parameter sensitivity analysis can be computationally expensive, requiring multiple simulations for perturbed values of the parameters. Here, we use trajectory reweighting to derive a method for computing sensitivity coefficients in stochastic simulations without explicitly perturbing the parameter values, avoiding the need for repeated simulations. The method allows the simultaneous computation of multiple sensitivity coefficients. Our approach recovers results originally obtained by application of the Girsanov measure transform in the general theory of stochastic processes [A. Plyasunov and A. P. Arkin, J. Comp. Phys. 221, 724 (2007)]. We build on these results to show how the method can be used to compute steady-state sensitivity coefficients from a single simulation run, and we present various efficiency improvements. For models of biochemical signaling networks the method has a particularly simple implementation. We demonstrate its application to a signaling network showing stochastic focussing and to a bistable genetic switch, and present exact results for models with linear propensity functions.
description: 17 pages (including supplementary material); 5 figures
The Leadership Identity Development of Supplemental Instruction Leaders: A Case Study
Creators: name: Mason-Innes, Tracey Anne
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Education--Higher
subject: Supplemental Instruction
subject: Leadership Development
subject: Leadership Identity Development

description: Much of our understanding of leadership theory is based on hierarchical systems and is grounded in research from business settings. Although researchers have presented more collaborative, relational leadership models for post-secondary students, these models have not been widely applied to supplemental instruction (SI) leader training programs. Having a better understanding of how students become SI leaders, the influences that shape their experiences, and how the SI experience shapes their leadership development has the potential to not only help SI program administrators, but also to assist all student affairs practitioners as they develop leadership programs that address institutional leadership learning outcomes. This descriptive case study describes the background characteristics and experiences of the SI leaders at a mid-size, regional, western Canadian university (WCU). The leadership identity development (LID) model was applied as a conceptual lens for this study-a model that is well-respected in the student affairs field. Six participants volunteered to participate in three interviews as well as reflective writing exercises. A document review of the SI program was also conducted. Based on the findings of this study, four conclusions were identified. First, when looking at student LID with SI leaders or any student leader, it is important to understand, acknowledge, and know the whole student. Secondly, many learning outcomes associated with the SI leader position were found in this study and warrant more emphasis in the SI literature and SI leader training. Thirdly, leadership identity development occurred for the SI leaders because of the structure and the nature of the SI program philosophy itself, as well as from the specific SI program training for the SI leaders. Finally, post-secondary institutions and the institutions’ student leadership programs need to adopt a leadership philosophy and ground their student leadership development in leadership scholarship, language, and theory to inform their programs. In the case of supplemental instruction, although the leadership identity development of the SI leaders is not a prominent or identified outcome, the findings from this study demonstrate that LID is likely occurring.
Integrin Linked Kinase as a therapeutic target for treating breast cancer : the value of using multiple endpoints to assess therapeutic effects of targeted drugs and drug combinations
Creators: name: Kalra, Jessica
Publisher: name: University of British Columbia
Year: 2010

description: Substantial preclinical evidence indicates that inhibition of Integrin Linked-Kinase (ILK) correlates with cytotoxic/cytostatic cellular effects, delayed tumour growth in animal models of cancer and inhibition of angiogenesis. It is increasingly evident that optimal therapeutic benefits obtained using ILK targeting strategies will only be achieved in combination settings. For this reason the therapeutic potential of the ILK small molecule inhibitor, QLT0267, alone or in combination with chemotherapies commonly used to treat breast cancer patients was investigated. The results suggested that the combination of QLT0267 and docetaxel (Dt) interacted synergistically when assessing metabolic activity as a therapeutic endpoint. Further endpoint analysis in cell lines with low Her2/neu levels revealed that the QLT0267/Dt combinations resulted in a 3- fold decrease in concentration of QLT0267 required to achieve 50% inhibition of P-AKT. For Her2/neu positive cell lines the QLT0267/Dt combination was antagonistic. In vivo studies using breast cancer cells (LCC6) implanted orthotopically demonstrated that treatment with QLT0267/Dt engendered improved therapeutic effects. Using luciferase positive LCC6 cells metastatic, orthotopic and ascites tumour models were characterized. The results suggested that the orthotopic LCC6 tumour model was most sensitive to docetaxel. Using the more docetaxel treatment refractory LCC6 model (disseminated disease) it was shown that QLT0267 could not sensitize the tumours to Dt treatment. These data suggest that clinical benefits of QLT0267/Dt in patients with breast cancer would most likely be observed used in the adjuvant or neoadjuvant setting. Finally, preliminary studies indicate that the effects of QLT0267 were influenced by Her2/neu expression. To understand how, six Her2/neu positive breast cancer cell lines were evaluated following treatment with QLT0267. These cell lines demonstrated suppression (32 to 87%) of total Her2/neu protein. Attenuation of ILK activity or expression was associated with decreases in YB-1 protein and transcript levels and decreased YB-1 promoter activity. YB-1 is a known transcriptional regulator of Her2/neu expression. ILK inhibition also engendered suppression in TWIST (a regulator of YB-1 expression) protein expression. Taken together, these data indicate that ILK regulates the expression of Her2/neu through TWIST and YB-1, lending support to the use of ILK inhibitors in the treatment of aggressive Her2/neu positive tumours.
MPEC 2023-X52 : 2023 XQ
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 XQ

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.
Recognizing Pole-like Objects from Mobile LiDAR Data
Creators: name: Zheng, Han
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Geotechnology
subject: Mobile LiDAR Data Processing
subject: 3D Pole-like Objects Recognition
subject: Vegetation Removal

description: With the development of the laser scanning systems, and the increasing interest on three-dimensional city scene understanding and reconstruction, more and more efforts have been put on the research of object detection and recognition from laser scanner data. Pole-like objects such as traffic signs, street lighting poles, traffic lights are the key components of the road infrastructure. They play an important role in the modern traffic systems and are highly related to our daily life. In this thesis, a pipeline for recognizing the pole-like objects from mobile LiDAR (Light Detection and Ranging) data is introduced. In the segmentation step, a local elevation context based region growing method is proposed. Comparing with traditional methods such as elevation histogram based method and curb detection based method, the introduced method is more robust to fluctuations and non-curb area. Further, by observing the key difference of object's penetrability between the vegetation and above ground objects, a local roughness based method is proposed. Based on the calculated local roughness of each point, points are classified into two categories, the vegetation points and the non-vegetation points, through a graph-cuts based method. In the recognition step, a Gaussian Mixture Model (GMM) based modeling method is introduced. Instead of using feature based recognition method which is sensitive to the noise background, in this research, a statistical model. based method is introduced. First, the points' distribution of each segmented cluster is modeled and described by the Mixture of Gaussians. Then, the candidate models are matched with the pre-trained sample models. Finally, the labels of the sample models are assigned to the best matched candidate to obtain the recognition results. Experimental results show that, the introduced recognition method achieves 90\% of the true positive rate on recognizing pole-like objects.
Dynamics of stellar and HI streams in the Milky Way halo
Creators: name: Jin, Shoko
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Stellar streams are key players in many aspects of Milky Way studies and, in particular, studying their orbital dynamics is crucial for furthering our understanding of the Milky Way's gravitational potential. Although this is not a trivial task when faced with incomplete dynamical phase-space information, transverse motions of streams can nevertheless be comprehended by harnessing the information contained within their radial velocity gradients. Such methods are not only applicable to stellar streams, but also to HI streams residing in the Milky Way halo. Here, I present the results of two studies that use radial velocity gradients to determine the system's orbit: for Hercules, one of the 'ultra-faint' dwarf galaxies exhibiting a large ellipticity and located at a distance of 140kpc, showing that it may in fact be a stellar stream, and for a string of high-velocity HI clouds belonging to the GCN complex, indicating its likelihood for being a gaseous stream at a distance of approximately 20kpc.
description: 4 pages, 2 figures, to appear in the proceedings of "Assembling the Puzzle of the Milky Way", Le Grand-Bornand (Apr 17-22, 2011)
Stress Clamp Experiments on Multicellular Tumor Spheroids
Creators: name: Montel, Fabien
name: Delarue, Morgan
name: Elgeti, Jens
name: Malaquin, Laurent
name: Basan, Markus
name: Risler, Thomas
name: Cabane, Bernard
name: Vignjevic, Danijela
name: Prost, Jacques
name: Cappello, Giovanni
name: Joanny, Jean-François
Publisher: name: arXiv
Year: 2011
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Medical Physics (physics.med-ph)
subject: Tissues and Organs (q-bio.TO)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The precise role of the microenvironment on tumor growth is poorly understood. Whereas the tumor is in constant competition with the surrounding tissue, little is known about the mechanics of this interaction. Using a novel experimental procedure, we study quantitatively the effect of an applied mechanical stress on the long-term growth of a spheroid cell aggregate. We observe that a stress of 10 kPa is sufficient to drastically reduce growth by inhibition of cell proliferation mainly in the core of the spheroid. We compare the results to a simple numerical model developed to describe the role of mechanics in cancer progression.
description: 5 pages, 4 figures
Omicrogiton D'ORCHYMONT 1919
Creators: name: Angus, Robert B
name: Sadílek, David
name: Shaarawi, Fatma
name: Dollimore, Hayley
name: Liu, Hsing-Che
name: Seidel, Matthias
name: Sýkora, Vít
name: Fikáček, Martin
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Hydrophilidae
Omicrogiton

description: GENUS OMICROGITON DʼORCHYMONT, 1919 (FIG. 14C–D, H) Material examined: Omicrogiton insularis dʼ Orchymont, 1919: 1 male, 1 female (BMNH): Taiwan, 4.8 km SEE of Tonglin, Beikeng Creek Trail, 24.04791°N 120.78434°E, 3.x.2018, rotten banana stem, M. Fikáček, H.-C. Liu, F.-S. Hu & W.-R. Liang lgt. Karyotype: 2 n = 24 + Xy (♂). Autosome pairs 1–3 and the X chromosome are metacentric and clearly larger than the other pairs. Pairs 4 and 7–12 are subacrocentric to acrocentric, and the smallest autosome is about a quarter the length of the largest. The Y chromosome is dot like.
description: Published as part of Angus, Robert B, Sadílek, David, Shaarawi, Fatma, Dollimore, Hayley, Liu, Hsing-Che, Seidel, Matthias, Sýkora, Vít & Fikáček, Martin, 2021, Karyotypes of water scavenger beetles (Coleoptera: Hydrophilidae): new data and review of published records, pp. 958 in Zoological Journal of the Linnean Society 192 (3) on page 958, DOI: 10.1093/zoolinnean/zlaa105, http://zenodo.org/record/5301134
An upper limit to the velocity dispersion of relaxed stellar systems without massive black holes
Creators: name: Miller, M. Coleman
name: Davies, Melvyn B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Massive black holes have been discovered in all closely examined galaxies with high velocity dispersion. The case is not as clear for lower-dispersion systems such as low-mass galaxies and globular clusters. Here we suggest that above a critical velocity dispersion of roughly 40 km/s, massive central black holes will form in relaxed stellar systems at any cosmic epoch. This is because above this dispersion primordial binaries cannot support the system against deep core collapse. If, as previous simulations show, the black holes formed in the cluster settle to produce a dense subcluster, then given the extremely high densities reached during core collapse the holes will merge with each other. For low velocity dispersions and hence low cluster escape speeds, mergers will typically kick out all or all but one of the holes due to three-body kicks or the asymmetric emission of gravitational radiation. If one hole remains, it will tidally disrupt stars at a high rate. If none remain, one is formed after runaway collisions between stars, then it tidally disrupts stars at a high rate. The accretion rate after disruption is many orders of magnitude above Eddington. If, as several studies suggest, the hole can accept matter at that rate because the generated radiation is trapped and advected, then it will grow quickly and form a massive central black hole.
description: 8 pages, 2 figures, accepted to the Astrophysical Journal
Aprendizaje móvil como una estrategia para desarrollar habilidades de emprendimiento con enfoque de género
Creators: name: Portuguez Castro, M.
Publisher: name: Zenodo
Year: 2019

description: Portuguez Castro, M. (2018). Aprendizaje móvil como una estrategia para desarrollar habilidades de emprendimiento con enfoque de género. Presentado en Seminario de Investigación Doctorado en Innovación Educativa. Tecnológico de Monterrey, México.
Additional file 1 of Optimizing the synthesis of yeast Beta-glucan via response surface methodology for nanotechnology application
Creators: name: Atta-Allah, Alshimaa A.
name: Ahmed, Rania F.
name: Shahin, Azza A. M.
name: Hassan, Enas A.
name: El-Bialy, Heba Abd-Alla
name: El-Fouly, Mohie Z.
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Computational Biology

description: Additional file 1: Figure (S1). Plot of significance effects and Pareto chart of the variables influencing β-glucan biosynthesis by Kluyveromyces lactis. Figure (S2). Plot of significance effects and Pareto chart of the variables influencing β-glucan biosynthesis by Meyerozyma guilliermondii. Figure (S3). Response optimization plots of the most significant variables affecting β-glucan biosynthesis. A: Minerals and vitamins concentration for Kluyveromyces lactis. B: Nitrogen and Phosphate concentrations for Meyerozyma guilliermondii. Figure S4. Phylogenetic tree showing the relationship of the selected yeast Kluyveromyces lactiswith other related fungal species relatives from Genbank based on their sequence homology of 18S rRNA. Figure S5. Phylogenetic tree showing the relationship of the selected yeast Meyerozyma guilliermondii with other related fungal species relatives from Genbank based on their sequence homology of 18S rRNA.
Unusual Fermi Surface Sheet-Dependent Band Splitting in Sr2RuO4 Revealed by High Resolution Angle-Resolved Photoemission
Creators: name: Liu, Shanyu
name: Weng, Hongming
name: Mou, Daixiang
name: Zhang, Wentao
name: Wu, Quansheng
name: He, Junfeng
name: Liu, Guodong
name: Zhao, Lin
name: Liu, Haiyun
name: Jia, Xiaowen
name: Peng, Yingying
name: He, Shaolong
name: Dong, Xiaoli
name: Zhang, Jun
name: Mao, Z. Q.
name: Chen, Chuangtian
name: Xu, Zuyan
name: Dai, Xi
name: Fang, Zhong
name: Zhou, X. J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: High resolution angle-resolved photoemission measurements have been carried out on Sr2RuO4. We observe clearly two sets of Fermi surface sheets near the (π,0)-(0,π) line which are most likely attributed to the surface and bulk Fermi surface splitting of the βband. This is in strong contrast to the nearly null surface and bulk Fermi surface splitting of the αband although both have identical orbital components. Extensive band structure calculations are performed by considering various scenarios, including structural distortion, spin-orbit coupling and surface ferromagnetism. However, none of them can explain such a qualitative difference of the surface and bulk Fermi surface splitting between the αand βsheets. This unusual behavior points to an unknown order on the surface of Sr2RuO4 that remains to be uncovered. Its revelation will be important for studying and utilizing novel quantum phenomena associated with the surface of Sr2RuO4 as a result of its being a possible p-wave chiral superconductor and a topological superconductor.
description: 13 pages, 4 figures
Pseudomonas aeruginosa Exopolysaccharide Biosynthesis and Immunosuppressive Role in Vivo
Creators: name: Rich, Jacquelyn
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Education--Sciences
subject: Genetics
subject: FOS: Biological sciences
subject: Microbiology
subject: Biology--Molecular
subject: Immunology
subject: FOS: Clinical medicine
subject: Pseudmonas
subject: Biofilm
subject: Exopolysaccharide
subject: Inflammation
subject: Neutrophil
subject: PEL
subject: Epimerase

description: Pseudomonas aeruginosa is a pathogen that can colonize the lungs of cystic fibrosis patients leading to chronic infections that are thought to have biofilm etiology. This opportunistic bacterium produces three exopolysaccharides found in the biofilm matrix: PEL, PSL and alginate. In this thesis, understanding the synthesis and expression of PEL was conducted by developing complementation vectors for each gene in the pel operon, as well as proposed genes involved in precursor synthesis. These vectors can be manipulated to learn more about how the proteins function to contribute to PEL expression, as shown using the PelA complementation vector to dissect individual residue functions. Results also suggest that the epimerases, GalE and PA4068, contribute to the synthesis of PEL. It was also found that in vivo, PEL and PSL act as immunosuppressive virulence factors, impairing neutrophil activation, potentially leading to immune evasion through alteration in innate immune response.
Fluctuation-dissipation relations and critical quenches in the transverse field Ising chain
Creators: name: Foini, Laura
name: Cugliandolo, Leticia F.
name: Gambassi, Andrea
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Dynamic correlation and response functions of classical and quantum systems in thermal equilibrium are connected by fluctuation-dissipation theorems, which allow an alternative definition of their (unique) temperature. Motivated by this fundamental property, we revisit the issue of thermalization of closed many-body quantum systems long after a sudden quench, focussing on the non-equilibrium dynamics of the Ising chain in a critical transverse field. We show the emergence of distinct observable-dependent effective temperatures, which rule out Gibbs thermalization in a strict sense but might still have a thermodynamic meaning.
description: 5 pages, 3 figures
Conodont Apparatus Reconstruction from the Lower Carboniferous Hart River Formation, Norther Yukon Territory
Creators: name: Lanik, Amanda
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Paleontology
subject: Conodont
subject: Apparatus

description: Conodonts sampled from the Lower Carboniferous Hart River Formation have yielded abundant, well-preserved elements with a relatively low diversity of species. In addition, they do not display much platform-overrepresentation, a phenomenon affecting the majority of Late Paleozoic conodont samples. These qualities make the Hart River conodont samples ideal for statistical apparatus reconstruction. The elements were divided into groups based on morphology and counted. Cluster analysis, in addition to empirical observations made during the counting process, was then used to reconstruct the original apparatus composition for the species present. Five partial to complete apparatus reconstructions were made, belonging to the species Bispathodus sp. A, Bispathodus stabilis, Gnathodus homopunctatus, Gnathodus texanus, and Vogelgnathus gladiolus. The co-occurrence of these species indicate an early Visean age for the Hart River Formation. This differs slightly from the late Visean to early Serpukhovian age previously suggested for the Hart River Formation. The apparatus reconstructions prompted the reassignment of what has been called Lochriea homopunctatus in previous studies to the genus Gnathodus, and the new identification of Bispathodus sp. A, formerly interpreted as Rachistognathus prolixus. The apparatus reconstructions made in this study show new morphology for taxa that are both stratigraphically and evolutionarily important, indicating greater taxonomic complexity than was previously identified.
Additional file 1 of Predicting norovirus and rotavirus resurgence in the United States following the COVID-19 pandemic: a mathematical modelling study
Creators: name: Lappe, Brooke L.
name: Wikswo, Mary E.
name: Kambhampati, Anita K.
name: Mirza, Sara A.
name: Tate, Jacqueline E.
name: Kraay, Alicia N. M.
name: Lopman, Ben A.
Publisher: name: figshare
Year: 2023
Subjects: subject: Space Science
subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Supplementary Figure 1. Norovirus (left) and rotavirus (right) compartmental model structure. Supplementary Figure 2. Mobility estimates as the reduction in mobility on a scale from 0 (no mobility reduction) to 1 (100% mobility reduction) from February 4th, 2020.
Galactic structure based on the ATLASGAL 870mum survey
Creators: name: Beuther, H.
name: Tackenberg, J.
name: Linz, H.
name: Henning, Th.
name: Schuller, F.
name: Wyrowski, F.
name: Schilke, P.
name: Menten, K.
name: Robitaille, T. P.
name: Walmsley, C. M.
name: Bronfman, L.
name: Motte, F.
name: Nguyen-Luong, Q.
name: Bontemps, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The ATLASGAL 870mum continuum survey conducted with the APEX telescope is the first survey covering the whole inner Galactic plane (60deg>l>-60deg & b<1.5deg) in submm continuum emission tracing the cold dust of dense and young star-forming regions. Here, we present the overall distribution of sources within our Galactic disk. The submm continuum emission is confined to a narrow range around the galactic plane, but shifted on average by ~0.07deg below the plane. Source number counts show strong enhancements toward the Galactic center, the spiral arms and toward prominent star-forming regions. Comparing the distribution of ATLASGAL dust continuum emission to that of young intermediate- to high-mass young stellar objects (YSOs) derived from Spitzer data, we find similarities as well as differences. In particular, the distribution of submm dust continuum emission is significantly more confined to the plane than the YSO distribution (FWHM of 0.7 and 1.1deg, corresponding to mean physical scale heights of approximately 46 and 80pc, respectively). While this difference may partly be caused by the large extinction from the dense submm cores, gradual dispersal of stellar distributions after their birth could also contribute to this effect. Compared to other tracers of Galactic structure, the ATLASGAL data are strongly confined to a narrow latitude strip around the Galactic plane.
description: 7 pages, 6 figures, accepted for the Astrophysical Journal, high-resolution version at http://www.mpia-hd.mpg.de/homes/beuther/papers.html
The Automatic Grouping of Sensor Data Layers Using Semantic Clustering and Classification to Group Semantically Similar Sensor Data Layers
Creators: name: Knoechel, Ben Charles
Publisher: name: Graduate Studies
Year: 2013
Subjects: Geotechnology

description: The Sensor Web is a growing phenomenon where an increasing number of sensors are collecting data in the physical world, to be made available over the Internet. Open standards have been proposed and are being implemented to eliminate the problem of semantic interoperability, the goal being to allow systems to share data automatically. Spatial Data Infrastructures (SDIs) are tools that have been developed to manage geospatial data from many different sources. However, there are still problems with interoperability associated with a lack of standardized naming, even with data collected using the same open standard. The objective of this thesis is to automatically group similar sensor data layers. We propose a methodology to automatically group similar sensor data layers based on the phenomenon they measure. Our methodology is based on a unique bottom up approach that uses text processing, approximate string matching, and semantic string matching of data layers. Text processing includes normalization and tokenization to standardize syntactic differences in the naming. Approximate string matching techniques include Levenshtein Distance, a Length Adjusted Levenshtein Dissimilarity, Jaro Dissimilarity, JaroWinkler Dissimilarity, Jaccard Dissimilarity, and Cosine Dissimilarity. For semantic string matching, we use WordNet as a lexical database to compute word pair similarities and derive a set-based dissimilarity function using those similarity scores. These string matching algorithms are used to produce dissimilarity values between data layers, which are in turn used to provide data layer to data layer mappings, similar data layer clusters, and mapping between a set of class names and data layers. For clustering, we tested three different clustering algorithms, K-Medoids, Density-Based Spatial Clustering of Applications with Noise (DBSCAN), and Hierarchical Agglomerative Clustering (HAC). We evaluate and discuss the results of our methodology, and introduce a proof of concept Virtual SOS service to show the utility of such research.
Periodic orbits in the gravity field of a fixed homogeneous cube
Creators: name: Liu, Xiaodong
name: Baoyin, Hexi
name: Ma, Xingrui
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Mathematical Physics (math-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: In the current study, the existence of periodic orbits around a fixed homogeneous cube is investigated, and the results have powerful implications for examining periodic orbits around non-spherical celestial bodies. In the two different types of symmetry planes of the fixed cube, periodic orbits are obtained using the method of the Poincaré surface of section. While in general positions, periodic orbits are found by the homotopy method. The results show that periodic orbits exist extensively in symmetry planes of the fixed cube, and also exist near asymmetry planes that contain the regular Hex cross section. The stability of these periodic orbits is determined on the basis of the eigenvalues of the monodromy matrix. This paper proves that the homotopy method is effective to find periodic orbits in the gravity field of the cube, which provides a new thought of searching for periodic orbits around non-spherical celestial bodies. The investigation of orbits around the cube could be considered as the first step of the complicated cases, and helps to understand the dynamics of orbits around bodies with complicated shapes. The work is an extension of the previous research work about the dynamics of orbits around some simple shaped bodies, including a straight segment, a circular ring, an annulus disk, and simple planar plates.
description: 23 pages, 10 figures, accepted for publication in Astrophysics & Space Science
Influence of Habitat Disturbances on Endemic Grassland Bird Distributions in Loamy Ecological Range Sites at Canadian Forces Base Suffield, Alberta
Creators: name: McWilliams, Benjamin
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: disturbance
subject: grassland
subject: bird

description: Many grassland birds are at risk and habitat disturbance may have an important influence on the persistence of these species. Military bases provide an opportunity to examine the influence of habitat disturbance on grassland birds, whose distributions are influenced by vegetation structure. Spatial autocovariate generalized linear models were developed for four primary endemic grassland bird species from point count data collected in loamy ecological range sites during spring 2013 and 2014. These models indicated habitat disturbances influenced bird distribution, but the response differed among species. The strongest response was to fire; relative abundance of two species increased with greater fire impact while the other two decreased. A Wilcoxon Signed-Rank test of matched burned and unburned areas showed fire reduced remotely sensed grassland vegetation (p < 0.001). These results indicate disturbed and undisturbed areas provide a range of habitats suitable to the endemic grassland bird species studied.
Additional file 1 of Social distancing and mental health among pregnant women during the coronavirus pandemic
Creators: name: Harville, Emily W.
name: Wood, Moira E.
name: Sutton, Elizabeth F.
Publisher: name: figshare
Year: 2023
Subjects: subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Figure S1. Relationships among social risk factors, mental health, and social distancing during pregnancy.
Connectivity of Elk Migration in Southwestern Alberta
Creators: name: Paton, Dale G.
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Zoology
subject: FOS: Biological sciences
subject: Elk
subject: Migration
subject: Dispersal
subject: connectivity
subject: stopover
subject: Corridor
subject: hunt
subject: partially migratory
subject: Industry
subject: Recreation
subject: road

description: ABSTRACT The purpose of this study was to investigate the migration of a partially migratory population of 650 Rocky Mountain elk (Cervus elaphus) in the human dominated landscape of southwestern Alberta. I contribute previously unknown values for metrics known to be important for elk ecology and management, including: migration timing, distance, and duration . The Brownian bridge movement model was used to delineate a probabilistic estimate of elk migration corridors between seasonal ranges, to determine if elk use stopovers during migration and prioritize migration corridors. Elk used a number of stopovers during migration likely to maximize areas of rich forage due to spring green-up. Stopovers were found to be >500m from roads in areas of rugged terrain These stopover locations are critical components in altitudinal migration. Finally a predictive modeling process using graph theory methods (least cost and circuit theory) was undertaken to predict connectivity of the landscape for elk.
Computing solution concepts in games with integer decisions
Creators: name: Ryan, Christopher Thomas
Publisher: name: University of British Columbia
Year: 2010

description: Computing solution concepts in games is an important endeavor in the field of algorithmic game theory. This thesis explores two contexts – simultaneous games and sequential games – for computing solution concepts in games where some or all of the decisions of players can be modeled as integer vectors. In the case of simultaneous games, the problem of computing pure strategy in Nash equilibrium (pure NE) is considered in two classes of compactly represented games; that is, games where the set of players, actions or utilities are expressed compactly by an input smaller than the standard normal form representation. The first class considered is integer programming games where actions are sets of integer points and utilities have a special difference of piecewise linear convex structure. The second class considered is symmetric games with general piecewise linear utilities. Both classes can be highly expressive of general normal form games, but can also be highly compact. The main results are polynomial-time algorithms for counting and finding pure NE when certain parameters are fixed and where the input is a description of the piecewise linear utilities. In both cases this can yield improved efficiency over known algorithms. In the case of sequential games, the problem of finding optimal “optimistic solutions” to bilevel integer programs are explored. In particular by using recent results from parametric integer programming, a polynomial-time (in fixed dimension) algorithm is derived. Existence results for optima in a more general setting involving a multilinear lower level objective representing leader-controlled units costs are also stated using a decomposition of the original ii problem into a finite set of simpler subproblems. This decomposition theorem is derived from an algebraic theory of integer programming using Gr ̈obner bases. Another contribution of this work is the use of a theory of encoding lattice points in polytopes as rational generating functions to encode sets of pure equilibria and bilevel op- timal solutions, which are viewed as lattice point sets. This encoding then yields efficient algorithms to count, enumerate and optimize over our sets of interest.
MNPBEM - A Matlab toolbox for the simulation of plasmonic nanoparticles
Creators: name: Hohenester, Ulrich
name: Trügler, Andreas
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: MNPBEM is a Matlab toolbox for the simulation of metallic nanoparticles (MNP), using a boundary element method (BEM) approach. The main purpose of the toolbox is to solve Maxwell's equations for a dielectric environment where bodies with homogeneous and isotropic dielectric functions are separated by abrupt interfaces. Although the approach is in principle suited for arbitrary body sizes and photon energies, it is tested (and probably works best) for metallic nanoparticles with sizes ranging from a few to a few hundreds of nanometers, and for frequencies in the optical and near-infrared regime. The toolbox has been implemented with Matlab classes. These classes can be easily combined, which has the advantage that one can adapt the simulation programs flexibly for various applications.
description: to appear in Comp. Phys. Commun.; see also http://physik.uni-graz.at/~uxh/mnpbem/mnpbem.html
Lift force on an asymmetrical obstacle immersed in a dilute granular flow
Creators: name: Potiguar, Fabricio Q.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: This paper investigates the lift force exerted on an elliptical obstacle immersed in a granular flow through analytical calculations and computer simulations. The results are shown as a function of the obstacle size, orientation with respect to the flow direction (tilt angle), the restitution coefficient and ellipse eccentricity. The theoretical argument, based on the force exerted on the obstacle due to inelastic, frictionless collisions of a very dilute flow, captures the qualitative features of the lift, but fails to reproduce the data quantitatively. The reason behind this disagreement is that the dilute flow assumption on which this argument is built breaks down as a granular shock wave forms in front of the obstacle. More specifically, the shock wave change the grains impact velocity at the obstacle, decreasing the overall net lift obtained from a very dilute flow.
description: 26 pages, preprint format, 15 figures, accepted for publication in PRE