cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spectroscopic evidence for helicity in explosive events
Creators: name: Curdt, Werner
name: Tian, Hui
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report spectroscopic observations in support of a novel view of transition region explosive events, observations that lend empirical evidence that at least in some cases explosive events may be nothing else than spinning narrow spicule-like structures. Our spectra of textbook explosive events with simultaneous Doppler flow of a red and of a blue component are extreme cases of high spectro-scopic velocities that lack apparent motion, to be expected if interpreted as a pair of collimated, linearly moving jets. The awareness of this conflict led us to the alternate interpretation of redshift and blueshift as spinning motion of a small plasma volume. In contrast to the bidirectional jet scenario, a small volume of spinning plasma would be fully compatible with the observation of flows without detectable apparent motion. We suspect that these small volumes could be spicule-like structures and try to find evidence. We show observations of helical motion in macrospicules and argue that these features - if scaled down to a radius comparable to the slit size of a spectrometer - should have a spectroscopic signature similar to that observed in explosive events, while not easily detectable by imagers. Despite of this difficulty, evidence of helicity in spicules has been reported in the literature. This inspired us to the new insight that the same narrow spinning structures may be the drivers in both cases, structures that imagers observe as spicules and that in spectrometers cross the slit and are seen as explosive events. We arrive at a concept that supports the idea that explosive events and spicules are different manifestations of the same helicity driven scenario. Consequently, in such a case, a photospheric or subphotosperic trigger has to be assumed.
description: 4 pages, 4 figures, accepted for publication as A&A letter
The cluster-core model for halo-structure of light nuclei at the drip lines
Creators: name: Gupta, Raj K.
name: Kumar, Sushil
name: Balasubramaniam, M.
name: Munzenberg, G.
name: Scheid, Werner
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Nuclei at both the neutron- and proton-drip lines are studied. In the cluster-core model, the halo-structure of all the observed and proposed cases of neutron- or proton-halos is investigated in terms of simple potential energy surfaces calculated as the sum of binding energies, Coulomb repulsion, nuclear proximity attraction and the centrifugal potential for all the possible cluster+core configurations of a nucleus. The clusters of neutrons and protons are taken to be unbound, with additional Coulomb energy added for proton-clusters. The model predictions agree with the available experimental studies but show some differences with the nucleon separation energy hypothesis, particularly for proton-halo nuclei. Of particular interest are the halo-structures of $^{11}N$ and $^{20}Mg$. The calculated potential energy surfaces are also useful to identify the new magic numbers and molecular structures in exotic nuclei. In particular, N=6 is a possible new magic number for very neutron-deficient nuclei, but Z=N=2 and Z=8 seem to remain magic even for such nuclei, near the drip line.
The Lorentz Group, Noncommutative Space-Time, and Nonlinear Electrodynamics in Majorana-Oppenheimer Formalism
Creators: name: Red'kov, V.
name: Tolkachev, E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences
subject: G.1
subject: 35

description: Non-linear electrodynamics arising in the frames of field theories in non-commutative space-time is examined on the base of the Riemann-Silberstein-Majorana-Oppenheimer formalism. The problem of form-invariance of the non-linear constitutive relations governed by six non-commutative parameters θ_{kl} \sim {\bf K} = {\bf n} + i {\bf m} is explored in detail on the base of the complex orthogonal group theory SO(3.C). Two Abelian 2-parametric small groups, isomorphic to each other in abstract sense, and leaving unchangeable the extended constitutive relations at arbitrary six parameters θ_{kl} of effective media have been found, their realization depends explicitly on invariant length {\bf K}^{2}. In the case of non-vanishing length a special reference frame in which the small group has the structure SO(2) \otimes SO(1,1) has been found. In isotropic case no such reference frame exists. The way to interpret both Abelian small groups in physical terms consists in factorizing corresponding Lorentz transformations into Euclidean rotations and boosts. In the context of general study of various dual symmetries in non-commutative field theory, it is demonstrated explicitly that the non-linear constitutive equations in non-commutative electrodynamics are not invariant under continuous dual rotations, instead only invariance under discrete dual transformation exists.
description: 20 pages
Casimir effect across a layered medium
Creators: name: Tomas, Marin-Slobodan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Using nonstandard recursion relations for Fresnel coefficients involving successive stacks of layers, we extend the Lifshitz formula to configurations with an inhomogeneous, n-layered, medium separating two planar objects. The force on each object is the sum of a Lifshitz like force and a force arising from the inhomogeneity of the medium. The theory correctly reproduces very recently obtained results for the Casimir force/energy in some simple systems of this kind. As a by product, we obtain a formula for the force on an (unspecified) stack of layers between two planar objects which generalizes our previous result for the force on a slab in a planar cavity.
description: 5 pages, 1 figure, presented at QFEXT11
A Conversation with David R. Brillinger
Creators: name: Panaretos, Victor M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: David Ross Brillinger was born on the 27th of October 1937, in Toronto, Canada. In 1955, he entered the University of Toronto, graduating with a B.A. with Honours in Pure Mathematics in 1959, while also serving as a Lieutenant in the Royal Canadian Naval Reserve. He was one of the five winners of the Putnam mathematical competition in 1958. He then went on to obtain his M.A. and Ph.D. in Mathematics at Princeton University, in 1960 and 1961, the latter under the guidance of John W. Tukey. During the period 1962--1964 he held halftime appointments as a Lecturer in Mathematics at Princeton, and a Member of Technical Staff at Bell Telephone Laboratories, Murray Hill, New Jersey. In 1964, he was appointed Lecturer and, two years later, Reader in Statistics at the London School of Economics. After spending a sabbatical year at Berkeley in 1967--1968, he returned to become Professor of Statistics in 1970, and has been there ever since. During his 40 years (and counting) as a faculty member at Berkeley, he has supervised 40 doctoral theses. He has a record of academic and professional service and has received a number of honors and awards.
description: Published in at http://dx.doi.org/10.1214/10-STS324 the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)
The Generating Condition for Coalgebras
Creators: name: Iovanov, Miodrag C
Publisher: name: arXiv
Year: 2011
Subjects: subject: Representation Theory (math.RT)
subject: Category Theory (math.CT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: For a ring $R$, the properties of being (left) selfinjective or being cogenerator for the left $R$-modules do not imply one another, and the two combined give rise to the important notion of PF-rings. For a coalgebra $C$, (left) self-projectivity implies that $C$ is generator for right comodules and the coalgebras with this property were called right quasi-co-Frobenius; however, whether the converse implication is true is an open question. We provide an extensive study of this problem. We show that this implication does not hold, by giving a large class of examples of coalgebras having the "generating property". In fact, we show that any coalgebra $C$ can be embedded in a coalgebra $C_\infty$ that generates its right comodules, and if $C$ is local over an algebraically closed field, then $C_\infty$ can be chosen local as well. We also give some general conditions under which the implication "$C$-projective (left) $\Rightarrow C$ generator for right comodules" does work, and such conditions are when $C$ is right semiperfect or when $C$ has finite coradical filtration.
description: 16p, published 2009: London Mathematical Society
Ecological consequences of recreation on subarctic-alpine tundra: experimental assessment and predictive modeling as planning tools for sustainable visitor management in protected areas
Creators: name: Gnieser, Christoph H.
Publisher: name: University of Calgary
Year: 2000
Subjects: subject: GV191.46 .Y8 G59 2000
subject: Outdoor recreation - Environmental aspects - Yukon Territory
subject: Outdoor recreation - Yukon Territory - Management
subject: Tundra ecology - Yukon Territory
subject: Ecotourism - Yukon Territory

description: Bibliography: p. 392-435.
A Packet Scheduling Strategy in Sensor Networks with SGMH Protocol
Creators: name: Cherian, Mary
name: Nair, T. R. Gopalakrishnan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Data communication in sensor networks can have timing constraints like end to end deadlines. If the deadlines are not met either a catastrophe can happen in hard real time systems or performance deterioration can occur in soft real time systems. In real time sensor networks, the recovery of data through retransmission should be minimized due to the stringent requirements on the worst case time delays. This paper presents the application of Stop and Go Multihop protocol (SGMH) at node level in wireless sensor networks for scheduling and hence to meet the hard real time routing requirements. SGMH is a distributed multihop packet delivery algorithm. The fractions of the total available bandwidth on each channel is assigned to several traffic classes by which the time it takes to traverse each of the hops from the source to the destination is bounded. It is based on the notion of time frames (Tfr). In sensor networks packets can have different delay guarantees. Multiple frame sizes can be assigned for different traffic classes.
description: 4 pages, 5 figures, IEEE , International Conference ICCCNT 2010, India, IEEE Explore- 2010, ISBN 978-1-4211-6591, pp 1-4, 30th September 2010
MAIN ASPECTS OF ORGANIZING FOOTBALL COURSES IN EDUCATIONAL INSTITUTIONS
Creators: name: Khalikov Abdukhalik Abdulkhalimovich Associate Professor of the Department of Interfaculty Physical Culture and Sports of ASU
Publisher: name: Zenodo
Year: 2023

description: In the article, the author studied and analyzed the main aspects of the organization of football training sessions in educational institutions.
Key words
: Football, ball, action games, game elements, training, preparation, walking, referee
Evolution of dust in the Orion Bar with Herschel: I. Radiative transfer modelling
Creators: name: Arab, Heddy
name: Abergel, Alain
name: Habart, Emilie
name: Bernard-Salas, Jeronimo
name: Ayasso, Hacheme
name: Dassas, Karin
name: Martin, Peter G.
name: White, Glenn J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Interstellar dust is a key element in our understanding of the interstellar medium and star formation. The manner in which dust populations evolve with the excitation and the physical conditions is a first step in the comprehension of the evolution of inter- stellar dust. Within the framework of the Evolution of interstellar dust Herschel key program, we have acquired PACS and SPIRE spec- trophotometric observations of various photodissociation regions, to characterise this evolution. The aim of this paper is to trace the evolution of dust grains in the Orion Bar photodissociation region. We use Herschel/PACS (70 and 160 mic) and SPIRE (250, 350 and 500 mic) together with Spitzer/IRAC observations to map the spatial distribution of the dust populations across the Bar. Brightness profiles are modelled using the DustEM model coupled with a radiative transfer code. Thanks to Herschel, we are able to probe finely the dust emission of the densest parts of the Orion Bar with a resolution from 5.6" to 35.1". These new observations allow us to infer the temperature of the biggest grains at different positions in the Bar, which reveals a gradient from \sim 80 K to 40 K coupled with an increase of the spectral emissivity index from the ionization front to the densest regions. Combining Spitzer/IRAC observations, which are sensitive to the dust emission from the surface, with Herschel maps, we have been able to measure the Orion Bar emission from 3.6 to 500 mic. We find a stratification in the different dust components which can be re- produced quantitatively by a simple radiative transfer model without dust evolution. However including dust evolution is needed to explain the brightness in each band. PAH abundance variations, or a combination of PAH abundance variations with an emissivity enhancement of the biggest grains due to coagulation give good results.
description: 11 pages, 12 figures
Surface and bulk Fermiology and band dispersion in non-centrosymmetric BiTeI
Creators: name: Landolt, Gabriel
name: Eremeev, Sergey V.
name: Koroteev, Yury M.
name: Slomski, Bartosz
name: Muff, Stefan
name: Kobayashi, Masaki
name: Strocov, Vladimir N.
name: Schmitt, Thorsten
name: Aliev, Ziya S.
name: Babanly, Mahammad B.
name: Amiraslanov, Imamaddin R.
name: Chulkov, Evgueni V.
name: Osterwalder, Jurg
name: Dil, J. Hugo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: BiTeI has a layered and non-centrosymmetric structure where strong spin-orbit interaction leads to a giant spin splitting in the bulk bands. Here we present high-resolution angle-resolved photoemission (ARPES) data in the UV and soft x-ray regime that clearly disentangle the surface from the bulk electronic structure. Spin-resolved UV-ARPES measurements on opposite, non-equivalent surfaces show identical spin structures, thus clarifying the surface state character. Soft x-ray ARPES data clearly reveal the spindle-torus shape of the bulk Fermi surface, induced by the spin-orbit interaction.
description: 10 pages, 4 figures, submitted to PRL
Evaluating ecosystem management in the Columbia mountains of British Columbia
Creators: name: Feick, Jennifer (Jenny) L.
Publisher: name: University of Calgary
Year: 2000
Subjects: subject: QH77 .C3 F453 2000
subject: Parks Canada - Evaluation
subject: Ecosystem management - British Columbia - Mount Revelstoke National Park - Evaluation
subject: Ecosystem management - British Columbia - Glacier National Park - Evaluation
subject: Environmental protection - British Columbia
subject: Environmental auditing - British Columbia

description: Bibliography: p. 369-425.
Long-term Filter Efficiency of mobile Air Purifiers in Schools
Creators: name: Granzin, Manuel
name: Richter, Sarah
name: Schrod, Jann
name: Schubert, Natalie
name: Curtius, Joachim
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The SARS-CoV-2 pandemic forced many restrictions upon the public, such as the closing of schools, affecting social development and education of children. Here we tested air purifiers with HEPA filters as a measure to reduce the infection risk via airborne transmission during classes. We evaluated the efficiency and long-term performance of three devices over six month of operation at two schools by monitoring the particle decay from 0.003 µm to 10 µm. We found that the particle concentration was reduced reliably and spatially homogenously by 85 – 95% throughout the whole observed particle spectrum within ∼20 minutes for air exchange rates between 4.8 h−1 and 6.7 h−1. During the study we did not observe a clear decline in efficiency or performance of the air purifiers. We complemented our particle measurements with model calculations to estimate the virus concentration and inhaled dose of a susceptible person, assuming one infectious person was present. We calculated that the additional use of air purifiers reduced the number of potentially inhaled viruses at the end of the day by a factor of 2.65 relative to the case without air purifiers. Further, school-wide surveys indicated that the disturbance by the noise level of the air purifiers is to be considered and that the acceptance of air purifiers can be improved when the noise level is reduced. Overall, our study suggests that a combination of air purifiers and venting is a well-suited measure to reduce the potential indoor viral-load while still introducing fresh air into the room.
Neutrophil-induced myocyte dysfunction: Role of the a4-integrin
Creators: name: Poon, Betty Y.
Publisher: name: University of Calgary
Year: 1999
Subjects: subject: QP 552 I55 P66 1999
subject: Integrins
subject: Neutrophils.
subject: Myocardium - Cytology
subject: Myocardium - Diseases

description: Bibliography: p. 90-116
Locomotor morphology of anolis: Comparataive investigations of the design and function of the subdigital adhesive system
Creators: name: McGregor, Lisa
Publisher: name: University of Calgary
Year: 1999
Subjects: subject: QL 666 L268 M34 1999
subject: Anoles - Morphology
subject: Anoles - Locomotion

description: Bibliography: p. 339-357
Activity in galactic nuclei of cluster and field galaxies in the local universe
Creators: name: Hwang, Ho Seong
name: Park, Changbom
name: Elbaz, David
name: Choi, Yun-Young
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the environmental effects on the activity in galactic nuclei by comparing galaxies in clusters and in the field. Using a spectroscopic sample of galaxies in Abell clusters from the SDSS DR7, we investigate the dependence of nuclear activity on the physical parameters of clusters as well as the nearest neighbor galaxy. We also compare galaxy properties between AGN hosts and non-AGN galaxies. We find that the AGN fraction of early-type galaxies starts to decrease around one virial radius of clusters (r_{200,cl}) as decreasing clustercentric radius, while that of late types starts to decrease close to the cluster center (R~0.1-0.5r_{200,cl}). The AGN fractions of early-type cluster galaxies on average are found to be lower than those of early-type field galaxies by a factor ~3. However, the mean AGN fractions of late-type cluster galaxies are similar to those of late-type field galaxies. The AGN fraction of early-type BCGs lies between those of other early-type, cluster and field galaxies with similar luminosities. In the field, the AGN fraction strongly depends on the morphology of and the distance to the nearest neighbor galaxy. We find an anti-correlation between the AGN fraction and the velocity dispersion of clusters for all subsamples divided by morphology and luminosity of host galaxies. The AGN power indicated by L_[OIII]/M_BH is found to depend strongly on the mass of host galaxies rather than the clustercentric radius. The difference in physical parameters such as luminosity, (u-r) colors, SFRs, and (g-i) color gradients between AGN hosts and non-AGN galaxies is seen for both early and late types at all clustercentric radii, while the difference in structure parameters between the two is significant only for late types. These results support the idea that the nuclear activity is triggered through galaxy-galaxy interactions and mergers when gas supply for AGN is available.
description: 15 pages, 13 figures. To appear in A&A
title: Hunting for coconut crab
title: La chasse au crabe de cocotier
Creators: name: François, Alexandre
Publisher: name: Pangloss
Year: 2011
Subjects: subject: Linguistique
subject: Araki

description: This is the story of an evil spirit, who changed himself into a coconut crab and played a bad trick on a couple of men who were precisely looking for coconut crabs. That is when the hunter becomes the prey. Following widespread beliefs in the area, the worst thing with devils is their ability to transform themselves into anything they like, either a person or an animal, to get closer to their victims; this is how they 'lie' to people. The scene takes place in Rahuna, a spot in the western bush of Araki, where coconut crabs abound. This hunting activity is still popular on the island, since this animal is renouned for its taste.
title: A myth of origin: the island of Araki
title: Mythe d'origine: l'île d'Araki
Creators: name: François, Alexandre
Publisher: name: Pangloss
Year: 2011
Subjects: subject: Linguistique
subject: Araki

description: This myth tells how the island of Araki, which used to be near Hog Harbour (north-east of the island of Santo), decided once to migrate along the coast of Santo island, and eventually came to settle in its current day location, south of Santo. According to this myth, the island took with it the women of Hog Harbour; this is an interesting clue towards interpreting this story on historical grounds. The modern population of Araki is represented as descending from a former human group who would have lived on (or closer to) the eastern coast of Santo; after some period of good political relations - and especially women-exchanging traditions - with the people of Hog Harbour, that group would have left the mainland, and eventually populated the island of Araki. Other interpretations are possible, however, and the question may well be solved with the help of historical linguistics or archeology.
Stellar jitter from variable gravitational redshift: implications for RV confirmation of habitable exoplanets
Creators: name: Cegla, H. M.
name: Watson, C. A.
name: Marsh, T. R.
name: Shelyag, S.
name: Moulds, V.
name: Littlefair, S.
name: Mathioudakis, M.
name: Pollacco, D.
name: Bonfils, X.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A variation of gravitational redshift, arising from stellar radius fluctuations, will introduce astrophysical noise into radial velocity measurements by shifting the centroid of the observed spectral lines. Shifting the centroid does not necessarily introduce line asymmetries. This is fundamentally different from other types of stellar jitter so far identified, which do result from line asymmetries. Furthermore, only a very small change in stellar radius, ~0.01%, is necessary to generate a gravitational redshift variation large enough to mask or mimic an Earth-twin. We explore possible mechanisms for stellar radius fluctuations in low-mass stars. Convective inhibition due to varying magnetic field strengths and the Wilson depression of starspots are both found to induce substantial gravitational redshift variations. Finally, we investigate a possible method for monitoring/correcting this newly identified potential source of jitter and comment on its impact for future exoplanet searches.
description: 6 pages, 1 figure, 1 table
Effect of charge and shape on mobilities in capillary zone electrophoresis
Creators: name: Li, Dongmei
Publisher: name: University of Calgary
Year: 2000
Subjects: subject: QP 519.9 C36 L5 2000
subject: Capillary electrophoresis
subject: Ionic mobility

description: Bibliography: p. 15-16, 30-32, 51-52, 91-92, 112-113, 129-131, 139-140
Iron and light limitation of freshwater chrysophyte phytoplankton
Creators: name: Hopper, Bradley
Publisher: name: University of Calgary
Year: 1999
Subjects: subject: QK 569 C622 H67 1999
subject: Chrysophytes
subject: Algal populations
subject: Phytoplankton
subject: Plants, Effect of iron on
subject: Plants, Effect of light on

description: Bibliography: p. 127-133
Bulk Properties of Pb-Pb collisions at sqrt(sNN) = 2.76 TeV measured by ALICE
Creators: name: Toia, Alberica
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Global variables, such as the charged particle multiplicity and the transverse energy are important observables to characterize Relativistic Heavy Ion collisions and to constrain model calculations. The charged particle multiplicity dNch/deta and transverse energy dET/deta are measured at sqrt(sNN) = 2.76 TeV in Pb-Pb collisions as a function of centrality and in pp collisions. The fraction of inelastic cross section seen by the ALICE detector is calculated either using a Glauber model or the data corrected by simulations of nuclear and electromagnetic processes, or data collected with a minimum bias interaction trigger. The centrality, defined by the number of nucleons participating in the collision, is obtained, via the Glauber model, by relating the multiplicity distributions of various detectors in the ALICE Central Barrel and their correlation with the spectator energy measured by the Zero-Degree Calorimeters. The results are compared to corresponding results obtained at the significantly lower energies of the BNL AGS, the CERN SPS, and the BNL RHIC, and with models based on different mechanisms for particle production in nuclear collisions. Particular emphasis will be given to a discussion on systematic studies of the dependence of the centrality determination on the details of the Glauber model, and the validity of the Glauber model at unprecedented collision energies.
description: Proceedings of the XXII International Conference on Ultrarelativistic Nucleus-Nucleus Collisions Quark Matter 2011, submitted to J. Phys. G: Nucl. Part. Phys. 8 pages, 7 (multi)figures
NMR, spectroscopic, and biochemical studies of calmodulin variants
Creators: name: Brokx, Richard D.
Publisher: name: University of Calgary
Year: 2000
Subjects: subject: QP552 .C28 B76 2000
subject: Calmodulin
subject: Calcium binding proteins
subject: Proline
subject: Protein engineering

description: Bibliography: p. 293-335.
title: How the village of Sope was exorcised
title: Le désenvoûtement de Sope
Creators: name: François, Alexandre
Publisher: name: Pangloss
Year: 2011
Subjects: subject: Linguistique
subject: Araki

description: This holy story tells how a village (now Sope) in Araki was released from the spell of a devil, by a Christian Pastor called Sope. This devil used to hide in a hollow tree close to the road, and would kill people by just dropping some of his poisonous rain water kept in the tree. This early missionary, who belonged to the T.T.I. (Tangoa Training Institute) Bible college on Tangoa, was one of the first Presbyterians who came to Araki to fight the 'dark ages' of paganism, at the end of the nineteenth century. He freed the place from its heathen fears and taboos, bringing the Christian word of God. The village of Sope was named after him.
title: The Rat, the Hawk and the Octopus
title: Le Rat, le Faucon et la Pieuvre
Creators: name: François, Alexandre
Publisher: name: Pangloss
Year: 2011
Subjects: subject: Linguistique
subject: Araki

description: This tale is a long, pleasant narration of Mr Rat's misadventures with his fellow creatures: first, with animals of the air and especially the Hawk (Circus approximans); and then animals of the sea, above all the Octopus. This story consists of several parts: [1] the Rat is paddling in his canoe, but several birds harass him, wanting to embark with him (this gives the tale its song); the boat nearly sinks. [2] while on the boat, the Rat steals a piece of yam belonging to the Hawk; the Hawk takes his revenge by making the boat sink. [3] the Rat swims to escape death, and asks for the help of a shark, of the Turtle, of the Dolphin, and finally the Octopus accepts to carry him. But when the Octopus realises the Rat is laughing at him, he tries to kill him. [4] the last part is an etiological reflection about how this story accounts for nowadays rats and octopuses. We believe this version probably mingles more than one traditional plot: in particular, the first part [1] is a crescendo which should naturally result in the boat sinking, but the episode of the hawk [2] brings in a new suspense; finally, the story with the octopus could form a whole tale per se. The result of this assortment is a pleasant, poetic and lively tale, in which each animal is endowed with its own human-like psychology and world. The personification of animals is patent in the many details of the story (e.g. the rat is going to have lunch with his Mum, or the birds threaten him with telling everything to their Dad when he comes back home), but it is also visible linguistically, through their genitive and object marking.
Lifetime reduction of surface states at Cu, Ag and Au(111) caused by impurity scattering
Creators: name: Heers, Swantje
name: Mavropoulos, Phivos
name: Lounis, Samir
name: Zeller, Rudolf
name: Blugel, Stefan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present density-functional results on the lifetime of the (111) surface state of the noble metals. We consider scattering on the Fermi surface caused by impurity atoms belonging to the 3d and 4sp series. The results are analyzed with respect to film thickness and with respect to separation of scattering into bulk or into surface states. While for impurities in the surface layer the overall trends are similar to the long-known bulk-state scattering, for adatom-induced scattering we find a surprising behavior with respect to the adatom atomic number. A plateau emerges in the scattering rate of the 3d adatoms, instead of a peak characteristic of the d resonance. Additionally, the scattering rate of 4sp adatoms changes in a zig-zag pattern, contrary to a smooth parabolic increase following Linde's rule that is observed in bulk. We interpret these results in terms of the weaker charge-screening and of interference effects induced by the lowering of symmetry at the surface.
The ESO large program DESTINYS
Creators: name: Garufi
Publisher: name: Zenodo
Year: 2022

description: With over 200 targets observed, the direct imaging in the near-IR from AO-assisted 8-m telescopes has revolutionized our view of the planet-forming disk demography. I present the first results of the large program ESO DESTINYS (Disk Evolution Study Through Imaging of Nearby Young Stars, Ginski et al. 2020, 2021). These observations probe the scattered light from the circumstellar environment of 85 T Tau stars in different nearby star-forming regions with the aim to alleviate the strong bias of the literature sample and better constrain the evolution of planet-forming disks, of their substructures, and of the ambient material.
Visuo-motor coordination in table tennis
Creators: name: Rodrigues, Sergio Tosi
Publisher: name: University of Calgary
Year: 2000
Subjects: subject: BF295.5 .T46 R63 2000
subject: Perceptual motor-processes - Testing
subject: Table tennis
subject: Motor ability - Testing
subject: Visual percepting - Testing

description: Bibliography: p. 125-139.
Unification of witnessing initial system-environment correlations and witnessing non-Markovianity
Creators: name: Rodríguez-Rosario, César A.
name: Modi, Kavan
name: Mazzola, Laura
name: Aspuru-Guzik, Alán
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show the connection between a witness that detects dynamical maps with initial system-environment correlations and a witness that detects non-Markovian open quantum systems. Our analysis is based on studying the role that state preparation plays in witnessing violations of contractivity of open quantum system dynamics. Contractivity is a property of some quantum processes where the trace distance of density matrices decrease with time. From this, we show how a witness of initial-correlations is an upper bound to a witness of non-Markovianity. We discuss how this relationship shows further connections between initial system-environment correlations and non-Markovianity at an instance of time in open quantum systems.
description: 5 pages
Reader response and the language minority student
Creators: name: Jolly, Clive Nelson
Publisher: name: University of Calgary
Year: 2000
Subjects: subject: PN98 .R38 J65 2000
subject: Reader-response criticism
subject: Linguistic minorities - Education - Alberta - Calgary - Case studies
subject: Reading - Case studies
subject: Literature - Study and teaching (Secondary) - Alberta - Calgary

description: Bibliography: p. 257-274.
Sedimentology and stratigraphy of the lower triassic montney formation, Peace River basin, subsurface of northwestern Alberta
Creators: name: Kendall, Debra Ruth
Publisher: name: University of Calgary
Year: 1999
Subjects: subject: QE677 .K46 1999
subject: Additional Copy: QE677 .K46 1999A (Gallagher)
subject: Geology - Alberta
subject: Sedimentation and deposition - Alberta - Montney Formation
subject: Formations (Geology) - Alberta
subject: Montney Formation (Alta.)
subject: Geology, Stratigraphic - Triassic

description: Bibliography: p. 242-263
The prevalence of giardia duodenalis and cryptosporidium spp., and the molecular characterization of cryptosporidium spp. isolated from human, wildlife and argicultural sources of the North Saskatchewan River basin in Alberta, Canada
Creators: name: Heitman, T. Lee-Ann
Publisher: name: University of Calgary
Year: 2000
Subjects: subject: QL 368 D65 H45 2000
subject: Giardia - Alberta
subject: Cryptosporidium - Alberta
subject: North Saskatchewan River Watershed (Alta. and Sask.)

description: Bibliography: p. 107-125
Triadic motifs and dyadic self-organization in the World Trade Network
Creators: name: Squartini, Tiziano
name: Garlaschelli, Diego
Publisher: name: arXiv
Year: 2012
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: General Finance (q-fin.GN)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: In self-organizing networks, topology and dynamics coevolve in a continuous feedback, without exogenous driving. The World Trade Network (WTN) is one of the few empirically well documented examples of self-organizing networks: its topology strongly depends on the GDP of world countries, which in turn depends on the structure of trade. Therefore, understanding which are the key topological properties of the WTN that deviate from randomness provides direct empirical information about the structural effects of self-organization. Here, using an analytical pattern-detection method that we have recently proposed, we study the occurrence of triadic "motifs" (subgraphs of three vertices) in the WTN between 1950 and 2000. We find that, unlike other properties, motifs are not explained by only the in- and out-degree sequences. By contrast, they are completely explained if also the numbers of reciprocal edges are taken into account. This implies that the self-organization process underlying the evolution of the WTN is almost completely encoded into the dyadic structure, which strongly depends on reciprocity.
description: 12 pages, 3 figures; Best Paper Award at the 6th International Conference on Self-Organizing Systems, Delft, The Netherlands, 15-16/03/2012
Sites of resistance, sites of strength: the construction and experience of queer space in Calgary
Creators: name: Johnston, Dawn Elizabeth Belle
Publisher: name: University of Calgary
Year: 1999
Subjects: subject: HQ76.3 .C32 C355 1999
subject: Gay communities--Alberta--Calgary
subject: Gays--Alberta--Calgary--identity
subject: Calgary (Alberta)--social life and customs

description: Bibliography: p. 103-106
The orbit of 2010 TK7. Possible regions of stability for other Earth Trojan asteroids
Creators: name: Dvorak, Rudolf
name: Lhotka, Christoph
name: Zhou, Liyong
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Recently the first Earth Trojan has been observed (Mainzer et al., ApJ 731) and found to be on an interesting orbit close to the Lagrange point L4 (Connors et al., Nature 475). In the present study we therefore perform a detailed investigation on the stability of its orbit and moreover extend the study to give an idea of the probability to find additional Earth-Trojans. Our results are derived using different approaches: a) we derive an analytical mapping in the spatial elliptic restricted three-body problem to find the phase space structure of the dynamical problem. We explore the stability of the asteroid in the context of the phase space geometry, including the indirect influence of the additional planets of our Solar system. b) We use precise numerical methods to integrate the orbit forward and backward in time in different dynamical models. Based on a set of 400 clone orbits we derive the probability of capture and escape of the Earth Trojan asteroids 2010 TK7. c) To this end we perform an extensive numerical investigation of the stability region of the Earth's Lagrangian points. We present a detailed parameter study in the regime of possible stable tadpole and horseshoe orbits of additional Earth-Trojans, i.e. with respect to the semi-major axes and inclinations of thousands of fictitious Trojans. All three approaches underline that the Earth Trojan asteroid 2010 TK7 finds himself in an unstable region on the edge of a stable zone; additional Earth-Trojan asteroids may be found in this regime of stability.
description: 11 pages, 16 figures
Increasing the dimensionality of quantum walks using multiple walkers
Creators: name: Rohde, Peter P.
name: Schreiber, Andreas
name: Stefanak, Martin
name: Jex, Igor
name: Gilchrist, Alexei
name: Silberhorn, Christine
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that with the addition of multiple walkers, quantum walks on a line can be transformed into lattice graphs of higher dimension. Thus, multi-walker walks can simulate single-walker walks on higher dimensional graphs and vice versa. This exponential complexity opens up new applications for present-day quantum walk experiments. We discuss the applications of such higher-dimensional structures and how they relate to linear optics quantum computing. In particular we show that multi-walker quantum walks are equivalent to the BosonSampling model for linear optics quantum computation proposed by Aaronson & Arkhipov. With the addition of control over phase-defects in the lattice, which can be simulated with entangling gates, asymmetric lattice structures can be constructed which are universal for quantum computation.
description: 9 pages
AVO analysis by simultaneous P-P and P-S weighted stacking
Creators: name: Larsen, Jeffrey A.
Publisher: name: University of Calgary
Year: 1999
Subjects: subject: TN269.8 .L36 1999A
subject: Additional Copy: TN269.8 .L36 1999 (Gallagher)
subject: Amplitude variation with offset analysis
subject: Seismic prospecting
subject: Seismology

description: Bibliography: p. 119-124
The physical and rheological properties of polymer-thickened foams in bulk and in porous media
Creators: name: Kutay, Susan Michelle
Publisher: name: University of Calgary
Year: 2000
Subjects: subject: QD381.9 .S65 K88 2000
subject: Foam
subject: Foam - Industrial applications
subject: Polymer solutions
subject: Surface active agents

description: Bibliography: p. 286-309.
Sentence production in individuals with Alzheimer's disease
Creators: name: Harper, Lori
Publisher: name: University of Calgary
Year: 2000
Subjects: subject: RC523 .H365 2000
subject: Alzheimer's disease - Patients - Ability testing
subject: Grammar, Comparative and general - Sentences
subject: Language disorders in old age
subject: Communicative disorders in old age
subject: Short - term memory

description: Bibliography : p. 114-139.
A Particle Simulation for the Axisymmetric Pulsar Magnetosphere: II. the case of dipole field
Creators: name: Wada, Tomohide
name: Shibata, Shinpei
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The main issue of the pulsar magnetosphere is how the rotation power is converted into both particle beams which causes pulsed emissions, and a highly relativistic wind of electron-positron plasmas which forms surrounding nebulae shining in X-rays and TeV gamma-rays. As a sequel of the first paper (Wada & Shibata 2007), we carried out a three dimensional particle simulation for the axisymmetric global magnetosphere. We present the results of additional calculations, which are higher resolution model and higher pair creation rate cases, and a detailed analysis for the solution. We confined to demonstrate the cases of low pair creation rate, i.e., the magnetic field is fixed dipole. The radiation drag of the plasma is taken in a form with the curvature radius along the dipole magnetic field. The electrostatic interactions are calculated by a programmable special purpose computer, GRAPE-DR (Makino et al 2007). Once pair creation is onset in the outer gaps, the both signed particles begin to drift across the closed magnetic field due to radiation drag, and they create outflow. Eventually, the steady magnetosphere has outer gaps, both signed outflow of plasma and a region in which the electric field is dominant extending from the equator. In the steady state, the magnetic field made by magnetospheric current is comparable to the dipole magnetic field outside of several light radii from the star. In much more pair creation rate model, the effect of modification of the magnetic field will bring about modification of the outflow of the plasma, requiring further study with higher pair creation rate model in a subsequent paper.
description: 18 pages, 12 figures, accepted for publication in MNRAS
The discovery of the 401 Hz accreting millisecond pulsar IGR J17498-2921 in a 3.8 hr orbit
Creators: name: Papitto, A.
name: Bozzo, E.
name: Ferrigno, C.
name: Belloni, T. M.
name: Burderi, L.
name: Di Salvo, T.
name: Riggio, A.
name: D'Aì, A.
name: Iaria, R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report on the detection of a 400.99018734(1) Hz coherent signal in the Rossi X-ray Timing Explorer light curves of the recently discovered X-ray transient, IGR J17498-2921. By analysing the frequency modulation caused by the orbital motion observed between August 13 and September 8, 2011, we derive an orbital solution for the binary system with a period of 3.8432275(3) hr. The measured mass function, f(M_2, M_1, i)=0.00203807(8) Msun, allows to set a lower limit of 0.17 Msun on the mass of the companion star, while an upper limit of 0.48 Msun is set by imposing that the companion star does not overfill its Roche lobe. We observe a marginally significant evolution of the signal frequency at an average rate of -(6.3 +/- 1.9)E-14 Hz/s. The low statistical significance of this measurement and the possible presence of timing noise hampers a firm detection of any evolution of the neutron star spin. We also present an analysis of the spectral properties of IGR J17498-2921 based on the observations performed by the Swift-X-ray Telescope and the RXTE-Proportional Counter Array between August 12 and September 22, 2011. During most of the outburst, the spectra are modeled by a power-law with an index Gamma~1.7-2, while values of ~3 are observed as the source fades into quiescence.
description: 5 pages, 2 figures, accepted for publication by A&A Letters on 7/11/2011
Soluble oligomerization provides a beneficial fitness effect on destabilizing mutations
Creators: name: Bershtein, Shimon
name: Mu, Wanmeng
name: Shakhnovich, Eugene I.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Biomolecules (q-bio.BM)
subject: Biological Physics (physics.bio-ph)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Mutations create the genetic diversity on which selective pressures can act, yet also create structural instability in proteins. How, then, is it possible for organisms to ameliorate mutation-induced perturbations of protein stability while maintaining biological fitness and gaining a selective advantage? Here we used a new technique of site-specific chromosomal mutagenesis to introduce a selected set of mostly destabilizing mutations into folA - an essential chromosomal gene of E. coli encoding dihydrofolate reductase (DHFR) - to determine how changes in protein stability, activity and abundance affect fitness. In total, 27 E.coli strains carrying mutant DHFR were created. We found no significant correlation between protein stability and its catalytic activity nor between catalytic activity and fitness in a limited range of variation of catalytic activity observed in mutants. The stability of these mutants is strongly correlated with their intracellular abundance; suggesting that protein homeostatic machinery plays an active role in maintaining intracellular concentrations of proteins. Fitness also shows a significant correlation with intracellular abundance of soluble DHFR in cells growing at 30oC. At 42oC, on the other hand, the picture was mixed, yet remarkable: a few strains carrying mutant DHFR proteins aggregated rendering them nonviable, but, intriguingly, the majority exhibited fitness higher than wild type. We found that mutational destabilization of DHFR proteins in E. coli is counterbalanced at 42oC by their soluble oligomerization, thereby restoring structural stability and protecting against aggregation.