cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Performance and exhaust emission characteristics of a spark ignition engine under very low ambient temperature conditions
Creators: name: Mohan, K.
Publisher: name: University of Calgary
Year: 1979
Subjects: subject: TJ 789 M63 1979 Microfiche
subject: Internal combustion engines, Spark ignition
subject: Internal Combustion engines, Spark ignition - Combustion

description: Bibliography: p. 87-94.
Modern applications of covariant density functional theory
Creators: name: Ring, P.
name: Abusara, H.
name: Afanasjev, A. V.
name: Lalazissis, G. A.
name: Niksic, T.
name: Vretenar, D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Modern applications of Covariant Density Functional Theory (CDFT) are discussed. First we show a systematic investigation of fission barriers in actinide nuclei within constraint relativistic mean field theory allowing for triaxial deformations. In the second part we discuss a microscopic theory of quantum phase transitions (QPT) based on the relativistic generator coordinate method.
Cerebral artery segmentation Challenge
Creators: name: Huijun Chen
name: Xihai Zhao
name: Haozhong Sun
name: Jiaqi Dou
name: Chenlin Du
name: Runyu Yang
name: Xiaoqi Lin
name: Shuwan Yu
name: Jiachen Liu
name: Yuan, Chun
name: Niranjan Balu
Publisher: name: Zenodo
Year: 2023
Subjects: Cerebral artery
segmentation
Intracranial artery stenosis
TOF-MRA
MICCAI Challenges

description: Stroke is one of the leading causes of death worldwide. The major etiology of ischemic stroke is cerebrovascular diseases characterized by disorders in the cerebral vasculature, such as stenosis and occlusion of arteries. Accurate assessment of cerebrovascular disorders is important for the diagnosis, treatment, and intervention of
 cerebrovascular diseases. Magnetic resonance angiography (MRA) is widely used to visualize the cerebral arterial tree for disease diagnosis. Accurate cerebral artery segmentation of MRA is significant for quantitative analysis of cerebrovascular diseases, such as estimation of degree of luminal stenosis. However, manual segmentation is
 challenging even for experts given the complex network of cerebral arteries with substantial inter-individual variations, and weak signals in small vessels due to slow or in-plane blood flow. Time-of-flight (TOF) MRA is the most widely used non-invasive imaging technique to depict the anatomy of the cerebrovascular tree without use of contrast agents. Private datasets and annotations are commonly used in recent cerebral artery segmentation studies, whereas open-accessible large-scale TOF-MRA data with well-labeled cerebral arteries are rare, hindering the development and validation of reliable automatic cerebral artery segmentation algorithms. Hence, we attempt to host the first cerebral artery segmentation challenge in MICCAI 2023. In this challenge, the task is to segment cerebral arteries from 3D TOF-MRA images acquired from patients with symptomatic intracranial artery stenosis. Precise segmentation of cerebral arteries will be helpful for identification and quantitative characterization of stenosis and help the diagnosis of vascular diseases such as arteriosclerosis, dissection, arteritis, moyamoya disease, and reversible cerebral vasoconstriction syndrome.
Mimosa aff. weddelliana Benth
Creators: name: Margoth Atahuachi
name: M. Leontien Van Der Bent
name: John R. I. Wood
name: Gwilym P. Lewis
name: Colin E. Hughes
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Magnoliophyta
Magnoliopsida
Fabales
Fabaceae
Mimosa

description: 60. * Mimosa aff. weddelliana Benth
 Although J.R.I. Wood et al. 26528 (Santa Cruz, Chiquitos, Desvio Yacuces 3km hacia Valle Hermoso, 19.0021 S, 58.1442 W, 156 m, zona de bosque chaqueño, lugares pantanosos inundados, LPB, K, USZ) is in some respects (armed shrub, appressed short scaberulous bulbous setae, striate ovate-acuminate stipules which are glabrous on faces, parallel-nerved leaflets, moriform capitula in bud, spathulate floral bracts) a good match for M. weddelliana, it differs in having longer setae, wider stipules, 8–9 pinnae pairs (versus 1 pair), fewer veins on leaflets, sparser corolla indumentum, corolla lobes 3-nerved, and recurved as opposed to straight aculei and shows some similarities to M. brachycarpa, M. scaberrima and M. cisparanensis. The differences in number of pinnae pairs are especially striking. Further collections are needed to evaluate this potentially unusual plant.
description: Published as part of Margoth Atahuachi, M. Leontien Van Der Bent, John R. I. Wood, Gwilym P. Lewis & Colin E. Hughes, 2016, Bolivian Mimosa (Leguminosae, Mimosoideae): three new species and a species checklist, pp. 201-222 in Phytotaxa 260 (3) on page 221, DOI: 10.11646/phytotaxa.260.3.1, http://zenodo.org/record/192175
An analytical approach to the multiply scattered light in the optical images of the extensive air showers of ultra-high energies
Creators: name: Giller, Maria
name: Smialkowski, Andrzej
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: One of the methods for studying the highest energy cosmic rays is to measure the fluorescence light emitted by the extensive air showers induced by them. To reconstruct a shower cascade curve from measurements of the number of photons arriving from the subsequent shower track elements it is necessary to take into account the multiple scatterings that photons undergo on their way from the shower to the detector. In contrast to the earlier Monte-Carlo work, we present here an analytical method to treat the Rayleigh and Mie scatterings in the atmosphere. The method consists in considering separately the consecutive 'generations' of the scattered light. Starting with a point light source in a uniform medium, we then examine a source in a real atmosphere and finally - a moving source (shower) in it. We calculate the angular distributions of the scattered light superimposed on the not scattered light registered from a shower at a given time. The analytical solutions (although approximate) show how the exact numerical results should be parametrised what we do for the first two generations (the contribution of the higher ones being small). Not allowing for the considered effect may lead to an overestimation of shower primary energy by ~15% and to an underestimation of the primary particle mass.
description: 23 pages, 18 figures, submited to Astroparticle Physics
The Effects of cold intake temperatures on the combustion of gaseous fuels in a dual fuel engine
Creators: name: Burn, Karam Singh
Publisher: name: University of Calgary
Year: 1977
Subjects: subject: TJ 805 B85 1977 Microfiche
subject: Internal combustion engines - Fuel systems
subject: Internal combustion engines - Cold weather operation
subject: Combustion gases

description: Bibliography: p. 96-101.
Atomic motifs govern the decoration of grain boundaries by interstitial solutes
Creators: name: Zhou, Xuyang
name: Ahmadian, Ali
name: Gault, Baptiste
name: Ophus, Colin
name: Liebscher, Christian H.
name: Dehm, Gerhard
name: Raabe, Dierk
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Grain boundaries, the two-dimensional (2D) defects between differently oriented crystals, control mechanical and transport properties of materials. Our fundamental understanding of grain boundaries is still incomplete even after nearly a century and a half of research since Sorby first imaged grains. Here, we present a systematic study, over 9 orders of magnitude of size scales, in which we analyze 2D defects between two neighboring crystals across five hierarchy levels and investigate their crystallographic, compositional, and electronic features. The levels are (a) the macroscale interface alignment and grain misorientation (held constant here); (b) the systematic mesoscopic change in the inclination of the grain boundary plane for the same orientation difference; (c) the facets, atomic motifs (structural units), and internal nanoscopic defects within the boundary plane; (d) the grain boundary chemistry; and (e) the electronic structure of the atomic motifs. As a model material, we use Fe alloyed with B and C, exploiting the strong interdependence of interface structure and chemistry in this system. This model system is the basis of the 1.9 billion tons of steel produced annually and has an eminent role as a catalyst. Surprisingly, we find that even a change in the inclination of the GB plane with identical misorientation impacts GB composition and atomic arrangement. Thus, it is the smallest structural hierarchical level, the atomic motifs, which control the most important chemical properties of the grain boundaries. This finding not only closes a missing link between the structure and chemical composition of such defects but also enables the targeted design and passivation of the chemical state of grain boundaries to free them from their role as entry gates for corrosion, hydrogen embrittlement, or mechanical failure.
Vertical supply chains and international business
Creators: name: Jing, Ran
Publisher: name: University of British Columbia
Year: 2009

description: This dissertation comprises three essays, each of which studies a business phenomenon in the context of vertical supply chains. The first essay studies the equity stakes that downstream producers hold in their upstream input suppliers. It applies and extends a property-rights model to make predictions concerning the size of such equity stakes and tests three main hypotheses using firm-level data from the Japanese auto parts industry. The second essay studies the impact of multinational retailers on China's exports. As the multinational retailers enter China, they may increase Chinese exports through linkages with distant markets where they have operations. Meanwhile, the presence of multinational retailers may stimulate productivity growth among local Chinese suppliers. Chinese city-level exports data are utilized to test and distinguish these two mechanisms. The third essay synthesizes, extends and illustrates the theory of exclusionary contracts. Two new channels though which exclusionary contracts in vertical supply chains could be anti-competitive are proposed. A recent antitrust case illustrates all incentives---the two established channels and the two new ones.
Depositional environments, Foremost Formation (Late Cretaceous) Milk River Area, southeastern Alberta
Creators: name: Ogunyomi, Olugbenga
Publisher: name: University of Calgary
Year: 1976
Subjects: subject: QE 685 O49 1976 Microfiche
subject: Geology, Stratigraphic - Cretaceous
subject: Geology - Alberta - Milk River area

description: Bibliography: p. 97-108.
title: A multi method study of the ideologically infused psychological contract and its consequences
Creators: name: Cnop-Nielsen, Aurelie
Publisher: name: London School of Economics and Political Science (LSE)
Year: 2020

description: This thesis follows a multi method design study to explore ideological psychological contract and its consequences. First, an explorative qualitative study investigated this construct in a sample of employees working for the children’s oncology department of a public hospital. It revealed the importance of ideological obligations for medical employees and how their fulfilment helps them to overcome minor causes of breach in the purse of a mission that transcends them. It also highlights the importance of the meaning of work in explaining the strong relationship built through this type of contract. Further, a quantitative study, conducted on a sample of 300 medical staff based in the UK, and replicated on a sample of around 150 bankers, explores the outcomes of the ideologically infused psychological contract fulfilment and how the meaning of work can explain these consequences. Results contrasting both sectors show that while the fulfilment of an ideologically infused psychological contract seems to play a crucial role in the healthcare sector, by triggering job satisfaction, display of OCB towards peers, the organisation and the patients, employee wellbeing and engagement, it doesn’t seem to influence attitudes and behaviours in the banking industry to the same degree, raising questions to the transferability of this concept across sectors.
Mössbauer study of the '11' iron-based superconductors parent compound Fe(1+x)Te
Creators: name: Blachowski, A.
name: Ruebenbauer, K.
name: Zajdel, P.
name: Rodriguez, E. E.
name: Green, M. A.
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: 57Fe Moessbauer spectroscopy was applied to investigate the superconductor parent compound Fe(1+x)Te for x=0.06, 0.10, 0.14, 0.18 within the temperature range 4.2 K - 300 K. A spin density wave (SDW) within the iron atoms occupying regular tetrahedral sites was observed with the square root of the mean square amplitude at 4.2 K varying between 9.7 T and 15.7 T with increasing x. Three additional magnetic spectral components appeared due to the interstitial iron distributed over available sites between the Fe-Te layers. The excess iron showed hyperfine fields at approximately 16 T, 21 T and 49 T for three respective components at 4.2 K. The component with a large field of 49 T indicated the presence of isolated iron atoms with large localized magnetic moment in interstitial positions. Magnetic ordering of the interstitial iron disappeared in accordance with the fallout of the SDW with the increasing temperature.
Enabling self-induced back-action trapping of gold nanoparticles in metamaterial plasmonic tweezers
Creators: name: Bouloumis, Theodoros D.
name: Kotsifaki, Domna G.
name: Chormaic, Sile Nic
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The pursuit for efficient nanoparticle trapping with low powers has led to optical tweezers technology moving from the conventional free-space configuration to advanced plasmonic tweezers systems. However, trapping nanoparticles smaller than 10 nm still remains a challenge even for plasmonic tweezers. Proper nanocavity design and excitation has given rise to the self-induced back-action (SIBA) effect offering enhanced trapping stiffness with decreased laser power. In this work, we investigate the SIBA effect in metamaterial tweezers and its synergy with the exhibited Fano resonance. We demonstrate stable trapping of 20 nm gold particles for on-resonant and off-resonant conditions with experimental trap stiffnesses as high as 4.18 fN/(nm*mW/$μ$m$^2$ and very low excitation intensity of about 1 mW/$μ$m$^2$. Simulations reveal the existence of two different groups of hotspots per unit cell of the metamaterial array. The two hotspots exhibit tunable trap stiffnesses and this is a unique feature of these systems. It can allow for sorting of particles and biological molecules based on their size, shape, and refractive index.
description: 27 pages, 10 figures
The hypothesis of the dust origin of the Broad Line Region in Active Galactic Nuclei
Creators: name: Czerny, B.
name: Hryniewicz, K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Strong broad emission lines are the most important signatures of active galactic nuclei. These lines allowed to discover the cosmological nature of quasars, and at present these lines allow for convenient method of weighting the black holes residing in their nuclei. However, a question remains why such strong lines form there in the first place. Specifically, in the case of Low Ionization Lines, there must be a mechanism which leads to an efficient rise of the material from the surface of the accretion disk surrounding a black hole but at the same time should not give a strong signature of the systematic outflow, as the Balmer lines are not significantly shifted with respect to the Narrow Line Region. We determine the effective temperature of the accretion disk underlying the H$β$ line at the basis of the time delay measured from reverberation and the simple Shakura-Sunyaev theory of accretion disks. We obtain that this temperature is universal, and equal $995 \pm 74$ K, independently from the black hole mass and accretion rate of the source. This result suggests to us that the dust formation in the disk atmosphere is responsible for the strong rise of the material. However, as the material gains height above the disk it becomes irradiated, the dust evaporates, the radiation pressure force suddently drops and the material fall back again at the disk. Therefore, a failed wind forms. In the simple version of the model the disk irradiation is neglected, but in the present paper we also discuss this irradiation and we use the observed variation of the Broad Line Region in NGC 5548 to constrain the character of this non-local non-stationary phenomenon. The current instruments cannot resolve the Broad Line Region but future instrumentation may allow to test the model directly.
description: to appear in the proceedings to "The Central Kiloparsec in Galactic Nuclei (AHAR2011)", Journal of Physics: Conference Series (JPCS), IOP Publishing
Design and Implementation of the End System to Intermediate System (ES-IS) Routing Information Exchange Protocol as a Loadable Kernel Module in Linux Kernel 2.6
Creators: name: Maria, Stella
name: Galinium, Maulahikmah
name: Fahmi, Husni
name: Faidah, Haret
name: Purnama, James
name: Lim, Charles
name: Damar, Harya
Publisher: name: arXiv
Year: 2012
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: This paper presents a partial implementation of the ES-IS Routing Information Exchange Protocol packet processing in Linux Kernel 2.6, which is for use in conjunction with the Connectionless Network Protocol (CLNP) in Aeronautical Telecommunication Network (ATN). First, we show the data structures involved in the protocol operation. Second, we describe the map of the packet processing whose design has been developed in the research. Third, we explain how the protocol is implemented as a loadable kernel module. Finally, we conclude the implementation result based on performed tests.
description: This paper has 6 pages and has been published in the Proceedings of MoMM2007 & iiWAS2007 Workshops
Phenomenological and microscopic cluster models I. The geometric mapping
Creators: name: Yépez-Martínez, H.
name: Fraser, P. R.
name: Hess, P. O.
name: Lévai, G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The geometrical mapping of algebraic nuclear cluster models is investigated within the coherent state formalism. Two models are considered: the Semimicroscopic Algebraic Cluster Model (SACM) and the Phenomenological Algebraic Cluster Model (PACM), which is a special limit of the SACM. The SACM strictly observes the Pauli exclusion principle while the PACM does not. The discussion of the SACM is adapted to the coherent state formalism by introducing the new SO(3) dynamical symmetry limit and third-order interaction terms in the Hamiltonian. The potential energy surface is constructed in both models and it is found that the effects of the Pauli principle can be simulated by higher-order interaction terms in the PACM. The present study is also meant to serve as a starting point for investigating phase transitions in the two algebraic cluster models.
description: 13 pages, 0 figures, part one of a two part work
Interacting models for twisted bilayer graphene: a quantum chemistry approach
Creators: name: Faulstich, Fabian M.
name: Stubbs, Kevin D.
name: Zhu, Qinyi
name: Soejima, Tomohiro
name: Dilip, Rohit
name: Zhai, Huanchen
name: Kim, Raehyun
name: Zaletel, Michael P.
name: Chan, Garnet Kin-Lic
name: Lin, Lin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The nature of correlated states in twisted bilayer graphene (TBG) at the magic angle has received intense attention in recent years. We present a numerical study of an interacting Bistritzer-MacDonald (IBM) model of TBG using a suite of methods in quantum chemistry, including Hartree-Fock, coupled cluster singles, doubles (CCSD), and perturbative triples (CCSD(T)), as well as a quantum chemistry formulation of the density matrix renormalization group method (DMRG). Our treatment of TBG is agnostic to gauge choices, and hence we present a new gauge-invariant formulation to detect the spontaneous symmetry breaking in interacting models. To benchmark our approach, we focus on a simplified spinless, valleyless IBM model. At integer filling ($ν=0$), all numerical methods agree in terms of energy and $C_{2z} \mathcal{T}$ symmetry breaking. Additionally, as part of our benchmarking, we explore the impact of different schemes for removing ``double-counting'' in the IBM model. Our results at integer filling suggest that cross-validation of different IBM models may be needed for future studies of the TBG system. After benchmarking our approach at integer filling, we perform the first systematic study of the IBM model near integer filling (for $|ν|< 0.2$). In this regime, we find that the ground state can be in a metallic and $C_{2z} \mathcal{T}$ symmetry breaking phase. The ground state appears to have low entropy, and therefore can be relatively well approximated by a single Slater determinant. Furthermore, we observe many low entropy states with energies very close to the ground state energy in the near integer filling regime.
Stability of a self-gravitating homogeneous resistive plasma
Creators: name: Pugliese, Daniela
name: Carlevaro, Nakia
name: Lattanzi, Massimiliano
name: Montani, Giovanni
name: Benini, Riccardo
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In this paper, we analyze the stability of a homogeneous self-gravitating plasma, having a non-zero resistivity. This study provides a generalization of the Jeans paradigm for determining the critical scale above which gravitational collapse is allowed. We start by discussing the stability of an ideal self-gravitating plasma embedded in a constant magnetic field. We outline the existence of an anisotropic feature of the gravitational collapse. In fact, while in the plane orthogonal to the magnetic field the Jeans length is enhanced by the contribution of the magnetic pressure, outside this plane perturbations are governed by the usual Jeans criterium. The anisotropic collapse of a density contrast is sketched in details, suggesting that the linear evolution provides anisotropic initial conditions for the non-linear stage, where this effect could be strongly enforced. The same problem is then faced in the presence of non-zero resistivity and the conditions for the gravitational collapse are correspondingly extended. The relevant feature emerging in this resistive scenario is the cancellation of the collapse anisotropy in weakly conducting plasmas. In this case, the instability of a self-gravitating resistive plasma is characterized by the standard isotropic Jeans length in any directions. The limit of very small resistivity coefficient is finally addressed, elucidating how reminiscence of the collapse anisotropy can be found in the different value of the perturbation frequency inside and outside the plane orthogonal to the magnetic field.
description: 12 pages, 3 figures, submitted to Physica D
Enhanced singular jet formation in oil-coated bubble bursting
Creators: name: Yang, Zhengyu
name: Ji, Bingqiang
name: Ault, Jesse T
name: Feng, Jie
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Bubbles are ubiquitous in many natural and engineering processes, and bubble bursting aerosols are of particular interest because of their critical role in mass and momentum transfer across interfaces. All prior studies claim that bursting of a millimeter-sized bare bubble at an aqueous surface produces jet drops with a typical size of $\boldsymbol{O}$(100 $\si{\micro\relax}$m), much larger than film drops of $\boldsymbol{O}$(1 $\si{\micro\relax}$m) from the disintegration of a bubble cap. Here, we document the hitherto unknown phenomenon that jet drops can be as small as a few microns when the bursting bubble is coated by a thin oil layer. We provide evidence that the faster and smaller jet drops result from the singular dynamics of the oil-coated cavity collapse. The unique air-oil-water compound interface offers a distinct damping mechanism to smooth out the precursor capillary waves during cavity collapse, leading to a more efficient focusing of the dominant wave and thus allowing singular jets over a much wider parameter space beyond that of a bare bubble. We develop a theoretical explanation for the parameter limits of the singular jet regime by considering the interplay among inertia, surface tension, and viscous effects. As such contaminated bubbles are widely observed, the previously unrecognized fast and small contaminant-laden jet drops may enhance bubble-driven flux across the interface, contributing to the aerosolization and airborne transmission of bulk substances.
Diter Rot: Decomposition, 14. Oktober bis 10. November 1969 und 'Miau Miau', 5. bis 27. März 1971, Domstrasse 81 / Diter Rot: Decomposition, October 14 to November 10, 1969 and 'Miau Miau', March 5 to 27, 1971
Creators: name: Behn, Helga
Publisher: name: Sediment – Materialien und Forschungen zur Geschichte des Kunstmarkts
Year: 2020

description: Sediment – Materialien und Forschungen zur Geschichte des Kunstmarkts, No 31 (2020): Sediment
Floppiness, cutting, and freezing: Dynamic critical scaling near isostaticity
Creators: name: Tighe, Brian P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The isostatic state plays a central role in organizing the response of many amorphous materials. We demonstrate the existence of a dynamic critical length scale in nearly isostatic spring networks that is valid both above and below isostaticity and at finite frequencies, and use scaling arguments to relate the length scale to viscoelastic response. We predict theoretically and verify numerically how proximity to isostaticity controls the viscosity, shear modulus, and creep of random networks.
description: 5 pages, 3 figures
A new bound for the large sieve inequality with power moduli
Creators: name: Halupczok, Karin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We give a new bound for the large sieve inequality with power moduli q^k that is uniform in k. The proof uses a new theorem due to T. Wooley from his work on efficient congruencing.
description: 9 pages; accepted by IJNT
Why are there six degrees of separation in a social network?
Creators: name: Samoylenko, Ivan
name: Aleja, David
name: Primo, Eva
name: Alfaro-Bittner, Karin
name: Vasilyeva, Ekaterina
name: Kovalenko, Kirill
name: Musatov, Daniil
name: Raigorodskii, Andreii M.
name: Criado, Regino
name: Romance, Miguel
name: Papo, David
name: Perc, Matjaz
name: Barzel, Baruch
name: Boccaletti, Stefano
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: A wealth of evidence shows that real world networks are endowed with the small-world property i.e., that the maximal distance between any two of their nodes scales logarithmically rather than linearly with their size. In addition, most social networks are organized so that no individual is more than six connections apart from any other, an empirical regularity known as the six degrees of separation. Why social networks have this ultra-small world organization, whereby the graph's diameter is independent of the network size over several orders of magnitude, is still unknown. We show that the 'six degrees of separation' are the property featured by the equilibrium state of any network where individuals weigh between their aspiration to improve their centrality and the costs incurred in forming and maintaining connections. We show, moreover, that the emergence of such a regularity is compatible with all other features, such as clustering and scale-freeness, that normally characterize the structure of social networks. Thus, our results show how simple evolutionary rules of the kind traditionally associated with human cooperation and altruism can also account for the emergence of one of the most intriguing attributes of social networks.
description: 16 pages, 7 figures
Palynology and paleoecology of the Mattson formation, Northwest Canada
Creators: name: Braman, D. R.
Publisher: name: University of Calgary
Year: 1976
Subjects: subject: QE 993 B72 1976 Microfiche
subject: Palynology
subject: Palynology - Northwest, Canada
subject: Paleoecology

description: Bibliography: p. 127-140.
Eine früheisenzeitliche Siedlung mit besonderer Speichergrube bei Bad Sassendorf
Creators: name: Jöns, Ines
Publisher: name: Archäologie in Westfalen-Lippe
Year: 2020

description: -
description: Archäologie in Westfalen-Lippe, ARCHÄOLOGIE IN WESTFALEN-LIPPE 2018 (2019)
First survey of centimeter-scale AC-LGAD strip sensors with a 120 GeV proton beam
Creators: name: Madrid, Christopher
name: Heller, Ryan
name: Martín, Claudio San
name: Nanda, Shirsendu
name: Apresyan, Artur
name: Brooks, William K.
name: Chen, Wei
name: Giacomini, Gabriele
name: Köseyan, Ohannes Kamer
name: Los, Sergey
name: Peña, Cristián
name: Rios, René
name: Tricoli, Alessandro
name: Xie, Si
name: Ye, Zhenyu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present the first beam test results with centimeter-scale AC-LGAD strip sensors, using the Fermilab Test Beam Facility and sensors manufactured by the Brookhaven National Laboratory. Sensors of this type are envisioned for applications that require large-area precision 4D tracking coverage with economical channel counts, including timing layers for the Electron Ion Collider (EIC), and space-based particle experiments. A survey of sensor designs is presented, with the aim of optimizing the electrode geometry for spatial resolution and timing performance. Several design considerations are discussed towards maintaining desirable signal characteristics with increasingly larger electrodes. The resolutions obtained with several prototypes are presented, reaching simultaneous 18 micron and 32 ps resolutions from strips of 1 cm length and 500 micron pitch. With only slight modifications, these sensors would be ideal candidates for a 4D timing layer at the EIC.
Plume trajectories across a ridge under stable atmospheric conditions
Creators: name: Lee, Chang-Zen
Publisher: name: University of Calgary
Year: 1979
Subjects: subject: TD 883.7 C34 L42 1979 Fiche
subject: Air quality - Alberta - Copithorne Ridge
subject: Air quality management - Alberta - Copithorne Ridge
subject: Air - Pollution - Alberta - Copithorne Ridge - Measurement

description: Bibliography: p. 122-127.
Integral circulant graphs of prime power order with maximal energy
Creators: name: Sander, Jürgen W.
name: Sander, Torsten
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C50 (Primary) 15A18, 26B25, 49K35, 90C25 (Secondary)

description: The energy of a graph is the sum of the moduli of the eigenvalues of its adjacency matrix. We study the energy of integral circulant graphs, also called gcd graphs, which can be characterized by their vertex count n and a set D of divisors of n in such a way that they have vertex set Zn and edge set {{a, b} : a, b in Zn; gcd(a - b, n) in D}. Using tools from convex optimization, we study the maximal energy among all integral circulant graphs of prime power order ps and varying divisor sets D. Our main result states that this maximal energy approximately lies between s(p - 1)p^(s-1) and twice this value. We construct suitable divisor sets for which the energy lies in this interval. We also characterize hyperenergetic integral circulant graphs of prime power order and exhibit an interesting topological property of their divisor sets.
description: 25 pages
Climate Change And Quantum Physics
Creators: name: Ashwini Sathnur
Publisher: name: Zenodo
Year: 2016
Subjects: subject: Climate
subject: Quantum Physics
subject: FOS: Physical sciences
subject: Neuron

description: Effects of solar flares on human health. The solar flares lead to human health imbalances. Thus creating technical solutions based on Information and Communication Technologies to provide mitigation to the causes and effects of the solar wind gushing and reaching the surface of the Earth.
Pottbäckerei in Ochtrup
Creators: name: Essling-Wintzer, Wolfram
name: Klostermann, Rudolf
name: Lehmann, Kerstin
Publisher: name: Archäologie in Westfalen-Lippe
Year: 2020

description: -
description: Archäologie in Westfalen-Lippe, ARCHÄOLOGIE IN WESTFALEN-LIPPE 2018 (2019)
Tetroon flights across a two-dimensional ridge under stable atmospheric conditions
Creators: name: Chung, Kam-Ping
Publisher: name: University of Calgary
Year: 1979
Subjects: subject: TD 883.15 C58 1979 Microfiche
subject: Air - Pollution - Research
subject: Air - Pollution - Experiments
subject: Air sampling apparatus

description: Bibliography: p.124-129.
Diffractive neutrino-production of pions on nuclei: Adler relation within the color-dipole description
Creators: name: Kopeliovich, B. Z.
name: Schmidt, Ivan
name: Siddikov, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Effects of coherence in neutrino-production of pions off nuclei are studied employing the color dipole representation and path integral technique. If the nucleus remains intact, the process is controlled by the interplay of two length scales. One is related to the pion mass and is quite long (at low Q^2), while the other, associated with heavy axial-vector states, is much shorter. The Adler relation is found to be broken at all energies, but especially strongly at ν> 10 GeV, where the cross section is suppressed by a factor ~A^{-1/3}. On the contrary, in a process where the recoil nucleus breaks up into fragments, the Adler relation turns out to be strongly broken at low energies, where the cross section is enhanced by a factor ~A^{1/3}, but has a reasonable accuracy at higher energies, where all the coherence length scales become long.
description: 9 pages, 5 figures
Engineering and probing non-Abelian chiral spin liquids using periodically driven ultracold atoms
Creators: name: Sun, Bo-Ye
name: Goldman, Nathan
name: Aidelsburger, Monika
name: Bukov, Marin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a scheme to implement Kitaev's honeycomb model with cold atoms, based on a periodic (Floquet) drive, in view of realizing and probing non-Abelian chiral spin liquids using quantum simulators. We derive the effective Hamiltonian to leading order in the inverse-frequency expansion, and show that the drive opens up a topological gap in the spectrum without mixing the effective Majorana and vortex degrees of freedom. We address the challenge of probing the physics of Majorana fermions, while having only access to the original composite spin degrees of freedom. Specifically, we propose to detect the properties of the chiral spin liquid phase using gap spectroscopy and edge quenches in the presence of the Floquet drive. The resulting chiral edge signal, which relates to the thermal Hall effect associated with neutral Majorana currents, is found to be robust for realistically-prepared states. By combining strong interactions with Floquet engineering, our work paves the way for future studies of non-Abelian excitations and quantized thermal transport using quantum simulators.
Grabung im Paderquellgebiet – Siedlungsspuren zwischen Eisenzeit und Mittelalter
Creators: name: Gai, Sveva
name: Lammers, Dieter
Publisher: name: Archäologie in Westfalen-Lippe
Year: 2020

description: -
description: Archäologie in Westfalen-Lippe, ARCHÄOLOGIE IN WESTFALEN-LIPPE 2018 (2019)
Sulphur recovery plant plume rise
Creators: name: Kumar, Kaup Sanjiva Vinodh
Publisher: name: University of Calgary
Year: 1973
Subjects: subject: TD 885.5 S8 K85 1973 Microfilm
subject: Air-pollution - Measurement
subject: Diffusion
subject: Sulphur dioxide

description: Bibliography: p. 86-92.
Distribution Statistics on Carbon Value Points out Good and Bad Portions of Proteins: A Viral Sample in Study
Creators: name: R. Devprakash
name: K. Akila
name: R. Senthil
name: R. Indupriya
name: R. Meenal
name: E. Rajasekaran
Publisher: name: Zenodo
Year: 2021
Subjects: Carbon distribution
influenza virus
carbon value
protein analysis
swine flu
proteomics
standard deviation
transcriptomics

description: Mutation can alter the structure of viral proteins to form different structure. Carbon distribution is responsible for these changes in structure. The carbon distribution statistics in proteins of viral sample is carried out here. The statistical results prove to be useful in identifying carbon optimized domains and abnormal portions active regions or hydrophobic part. It clearly indicates the portions which are exposed or buried inside the folded protein. It can locate the abnormal portion for possible mutational study. Mutational study based on this carbon distribution can be better exploited for further improving the protein stability, activity and ultimately for gene therapy.
Stellar Rotation and Structure of the $α$ Persei Complex: When Does Gyrochronology Start to Work?
Creators: name: Boyle, Andrew W.
name: Bouma, Luke G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: On the pre-main-sequence, the rotation rates of Sun-like stars are dictated by the interplay between the protostellar disk and the star's contraction. At ages exceeding 100 million years (Myr), magnetic spin-down erases the initial stellar spin rate and enables rotation-based age dating (gyrochronology). The exact time at which the transition between these two regimes occurs depends on stellar mass, and has been challenging to empirically resolve due to a lack of viable calibration clusters. The $α$ Persei open cluster ($t\approx80$ Myr, $d\approx170$ pc) may provide the needed calibrator, but recent analyses of the Gaia data have provided wildly varying views of its age and spatial extent. As such, we analyze a combination of TESS, Gaia, and LAMOST data to calibrate gyrochronology at the age of $α$ Per and to uncover the cluster's true morphology. By assembling a list of rotationally-confirmed $α$ Per members, we provide strong evidence that $α$ Per is part of a larger complex of similarly-aged stars. Through kinematic back-integration, we show that the most diffuse components of $α$ Per were five times closer together 50 Myr ago. Finally, we use our stellar rotation periods to derive a relative gyrochronology age for $α$ Per of 67 $\pm$ 12% the age of the Pleiades, which yields 86 $\pm$ 16 Myr given current knowledge. We show that by this age, stars more massive than $\approx$0.8 M$_{\odot}$ have converged to form a well-defined slow sequence.
description: Accepted to the Astronomical Journal
Holographic Flow of Anomalous Transport Coefficients
Creators: name: Landsteiner, Karl
name: Melgar, Luis
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the holographic flow of anomalous conductivities induced by gauge and gravitational Chern-Simons terms. We find that the contribution from the gauge Chern-Simons term gives rise to a flow that can be interpreted in terms of an effective, cutoff dependent chemical potential. In contrast the contribution of the gauge-gravitational Chern-Simons term is just the temperature squared and does not flow.
description: 26 pages, no figures
Die Herstellung der Filigrangoldscheibenfibel aus Soest in der Computeranimation
Creators: name: Jülich, Susanne
name: Müsch, Eugen
Publisher: name: Archäologie in Westfalen-Lippe
Year: 2020

description: -
description: Archäologie in Westfalen-Lippe, ARCHÄOLOGIE IN WESTFALEN-LIPPE 2018 (2019)
The life history of the pond smelt, Hypomesus olidus (Pallas): (Osmeridae) in a small lake in the northern Yukon Territory
Creators: name: Graaf, Dirk De
Publisher: name: University of Calgary
Year: 1975
Subjects: subject: QL 638 O84 G72 1975 Microfiche
subject: Osmeridae
subject: Smelt

description: Bibliography: p. 94-101.
Design and Implementation of the Connectionless Network Protocol (CLNP) as Loadable Kernel Modules in Linux Kernel 2.6
Creators: name: Sugiarto, Bunga
name: Laidi, Danny
name: Rizal, Arra'di Nur
name: Galinium, Maulahikmah
name: Atmadiputra, Pradana
name: Rubianto, Melvin
name: Fahmi, Husni
name: Sampurno, Tri
name: Kisworo, Marsudi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: In this paper, we present an implementation of CLNP ground-to-ground packet processing for ATN in Linux kernel version 2.6. We present the big picture of CLNP packet processing, the details of input, routing, and output processing functions, and the implementation of each function based on ISO 8473-1. The functions implemented in this work are PDU header decomposition, header format analysis, header error detection, error reporting, reassembly, source routing, congestion notification, forwarding, composition, segmentation, and transmit to device functions. Each function is initially implemented and tested as a separated loadable kernel module. These modules are successfully loaded into Linux kernel 2.6.
description: 7 pages conference paper. Published in Proceedings of MoMM2007 & iiWAS2007 Workshops
Enquiry Approaches (NPEP)
Creators: name: Project, NPEP
Publisher: name: Cardiff Metropolitan University
Year: 2023
Subjects: classificationCode: 390403
subject: Educational administration, management and leadership

description: NPEP Enquiry Approaches Resources.Link to podcast - https://podcasts.apple.com/gb/podcast/live-from-the-national-professional-enquiry-project/id1428879037?i=1000630396336
Non tradeable human capital and household asset allocation
Creators: name: Shim, Kyung Hwan
Publisher: name: University of British Columbia
Year: 2009

description: This thesis is comprised of two essays that investigate household consumption and portfolio choices in dynamic life cycle frameworks. In the first essay, I explain that stock market participation and stockholding are increasing in the level of education and financial wealth without relying on commonly used assumptions about differences in the cost of processing financial information among households. The key aspects of the model are recursive preferences, education attainment and stock market participation. Households with low risk aversion and high elasticity of intertemporal substitution (EIS) are more likely to exercise their education option, accumulate large wealth, invest in stock markets and invest heavily in stocks. These findings are consistent with three separate, but related, strands of the literature on i) household asset holding, ii) utility preferences based on household level financial data, and iii) utility preferences and education attainment. I find that, consistent with these studies, better educated households accumulate more financial wealth, hold a larger fraction of wealth in equity, have a higher EIS and are less risk averse than their less educated counterparts. In the second essay, I investigate the fact that the fraction of financial wealth invested in equity is increasing in financial wealth in the cross section of households, a known fact that contradicts existing theories in the literature. I show that the contemporaneous positive correlation between human capital and financial wealth values is increasing in the persistence of labor income shocks. While human capital and financial wealth independently have opposing direct effects on equity shares, human capital effects dominate if labor income shocks are highly persistent, generating increasing equity shares in financial wealth. Both a simple model and a realistically calibrated life cycle model of consumption and portfolio choice are shown to generate the results. The predictions are supported empirically using data from Panel Study of Income Dynamics. The essay shows that rising equity shares in financial wealth is a consequence of persistence in labor income shocks and its effects on the joint distribution of human capital, financial wealth accumulation and wealth composition in the cross section, and not a consequence of financial wealth effects alone, as commonly assumed.