cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dynamics of entropic measurement-induced nonlocality in structured reservoirs
Creators: name: Hu, Ming-Liang
name: Fan, Heng
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose the entropic measurement-induced nonlocality (MIN) as the maximal increment of von Neumann entropy induced by the locally non-disturbing measurement, and study behaviors of it both in the independent and common structured reservoirs. We present schemes for preserving the MIN, and show that for certain initial states the MIN, including the quantum correlations, can even be enhanced by the common reservoir. Additionally, we also show that the different measures of MIN may give different qualitative characterizations of nonlocal properties, i.e., it is rather measure dependent than state dependent.
description: 8 pages, 6 figures
The duality diagram in data analysis: Examples of modern applications
Creators: name: De la Cruz, Omar
name: Holmes, Susan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Today's data-heavy research environment requires the integration of different sources of information into structured data sets that can not be analyzed as simple matrices. We introduce an old technique, known in the European data analyses circles as the Duality Diagram Approach, put to new uses through the use of a variety of metrics and ways of combining different diagrams together. This issue of the Annals of Applied Statistics contains contemporary examples of how this approach provides solutions to hard problems in data integration. We present here the genesis of the technique and how it can be seen as a precursor of the modern kernel based approaches.
description: Published in at http://dx.doi.org/10.1214/10-AOAS408 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Molecular investigation of stalk formation and growth rates in Didymosphenia geminata
Creators: name: Larsen, Krista Maria
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Genetics

description: Didymosphenia geminata, a freshwater diatom, can produce thick benthic mats of stalk material. The cause of excess stalk formation is proposed to be low soluble reactive phosphorus (SRP) concentrations or a mat-forming genetic variant. Molecular studies on D. geminata are few, partly due to the lack of a reliable DNA extraction technique for the diatom, but have the ability to elucidate the drivers of mat formation. Specifically, comparison of gene expression between mat and non-mat-forming sites using reference genomes, may reveal underlying mechanisms behind growth and stalk formation. The objectives of this study were to: 1) identify gene products, expressed only at a mat or non-mat-forming site in Alberta (AB), involved in cell division or stalk formation from the reference genomes of P. tricornutum, T. pseudonana and C. crescentus; 2) compare SRP and growth rate, using frequency of dividing cells (FDC), between a mat-forming and non-mat-forming site; 3) compare FDC between multiple mat-forming sites in AB and British Columbia (BC); and 4) compare the quantity and quality of DNA obtained from mat-forming D. geminata using various preservation buffers, storage temperatures and extraction methods, including organic extraction, the Qiagen DNeasy® Plant Mini Kit, and a version of the kit procedure modified for D. geminata. Sixty-six putative gene products from the reference genomes were expressed only in the mat-forming sample, while 172 were expressed only in the non-mat-forming sample. FDC and SRP were higher at the non-mat-forming site, with no significant difference between FDC in AB and BC. Collectively, these results support previous findings that D. geminata forms excess stalk material under low SRP and increases cell division under higher SRP. However, an anomalous observation of mat formation at a site with 0.00986 mg/L SRP indicates stalk formation may be influenced by additional factors. In addition, the results of this study indicate that DNA extracted from samples stored in 95% EtOH at -80°C, using the modified kit method, had the best combination of quantity and quality.
On the theory of slowing down gracefully
Creators: name: Froehlich, Juerg
name: Gang, Zhou
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 35Q40, 35Q55

description: We discuss the transport of a tracer particle through the Bose Einstein condensate of a Bose gas. The particle interacts with the atoms in the Bose gas through two-body interactions. In the limiting regime where the particle is very heavy and the Bose gas is very dense, but very weakly interacting ("mean-field limit"), the dynamics of this system corresponds to classical Hamiltonian dynamics. We show that, in this limit, the particle is decelerated by emission of gapless modes into the condensate (Cerenkov radiation). For an ideal gas, the particle eventually comes to rest. In an interacting Bose gas, the particle is decelerated until its speed equals the propagation speed of the Goldstone modes of the condensate. This is a model of "Hamiltonian friction". It is also of interest in connection with the phenomenon of "decoherence" in quantum mechanics. It is based on work we have carried out in collaboration with D Egli, IM Sigal and A Soffer.
description: 11 Pages
Never ever or no matter what: Investigating Adoption Intentions and Misconceptions about the Corona-Warn-App in Germany
Creators: name: Häring, Maximilian
name: Gerlitz, Eva
name: Tiefenau, Christian
name: Smith, Matthew
name: Dominik.Wermke
name: Fahl, Sascha
name: Acar, Yasemin
Publisher: name: CISPA
Year: 2023

description: To help tackle the COVID-19 pandemic, the tech community has put forward proximity detection apps to help warn people who might have been exposed to the coronavirus. The privacy implications of such apps have been discussed both in academic circles and the general population. The discussion in Germany focused on the trade-off between a centralized or decentralized approach for data collection and processing and their implications. Specifically, privacy dominated the public debate about the proposed “Corona-Warn-App”. This paper presents a study with a quota sample of the German population (n = 744) to assess what the population knew about the soon-to-be-released app and their willingness to use it. We also presented participants potential properties the app could have and asked them how these would affect their usage intention. Based on our findings, we discuss our participants’ views on privacy and functionality, including their perception of selected centralized and decentralized features. We also examine a wide range of false beliefs and information that was not communicated successfully. Especially technical details, such as that the app would use Bluetooth, as opposed to location services, were unknown to many participants. Our results give insights on the complicated relationship of trust in the government and public communication on the population’s willingness to adopt the app.
On the Limited Impact of Visualizing Encryption: Perceptions of E2E Messaging Security
Creators: name: Stransky, Christian
name: Dominik.Wermke
name: Schrader, Johanna
name: Huaman, Nicolas
name: Acar, Yasemin
name: Fehlhaber, Anna Lena
name: Wei, Miranda
name: Ur, Blase
name: Fahl, Sascha
Publisher: name: CISPA
Year: 2023

description: Communication tools with end-to-end (E2E) encryption help users maintain their privacy. Although messengers like WhatsApp and Signal bring E2E encryption to a broad audience, past work has documented misconceptions of their security and privacy properties. Through a series of five online studies with 683 total participants, we investigated whether making an app’s E2E encryption more visible improves perceptions of trust, security, and privacy. We first investigated why participants use particular messaging tools, validating a prior finding that many users mistakenly think SMS and e-mail are more secure than E2E-encrypted messengers. We then studied the effect of making E2E encryption more visible in a messaging app. We compared six different text disclosures, three different icons, and three different animations of the encryption process. We found that simple text disclosures that messages are “encrypted” are sufficient. Surprisingly, the icons negatively impacted perceptions. While qualitative responses to the animations showed they successfully conveyed and emphasized “security” and “encryption”, the animations did not significantly impact participants’ quantitative perceptions of the overall trustworthiness, security, and privacy of E2E-encrypted messaging. We confirmed and unpacked this result through a validation study, finding that user perceptions depend more on preconceived expectations and an app’s reputation than visualizations of security mechanisms.
Coulomb Gap in Graphene Nanoribbons
Creators: name: Dröscher, S.
name: Knowles, H.
name: Meir, Y.
name: Ensslin, K.
name: Ihn, T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the density and temperature-dependent conductance of graphene nanoribbons with varying aspect ratio. Transport is dominated by a chain of quantum dots forming spontaneously due to disorder. Depending on ribbon length, electron density, and temperature, single or multiple quan- tum dots dominate the conductance. Between conductance resonances cotunneling transport at the lowest temperatures turns into activated transport at higher temperatures. The density-dependent activation energy resembles the Coulomb gap in a quantitative manner. Individual resonances show signatures of multi-level transport in some regimes, and stochastic Coulomb blockade in others.
LSD: the discourse-expanding drug
Creators: name: Halasz, Shane
Publisher: name: University of Calgary
Year: 2006

description: Bibliography: p. 99-106
description: This thesis argues that the discourses emanating out of and circulating around the psychedelic experience in the 1950s and 1960s represent a radical departure from traditional modern drug discourses, which are largely limited to medico-legal realms of discussion. In contrast to the clearly defined and linear manner in which rational modern drug discourses have circulated, this study finds that the revolutionary psychedelic discourse is better defined by ambiguous messages, as well as unclear sources of and destinations for information about the experience. With the advent (and ingestion) of LSD all aspects of North American "common sense" understandings of drugs were disrupted. Viewing the discourse through a phenomenologically informed lens of liberative aesthetics, it is argued that the special nature of the psychedelic experience necessitated the creation of new discursive channels and new forms of expression, out of which emerged a new, post-modern style of drug discourse.
Reducing Soil Erosion: Offsite Benefits
Creators: name: Ribaudo, Marc O.
name: Ribaudo, Marc O.
Publisher: name: Unknown
Year: 1986
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Land Economics/Use
subject: Resource /Energy Economics and Policy
subject: soil conservation
subject: soil erosion
subject: offsite benefits
subject: offsite damages
subject: point and nonpoint source pollution
subject: water quality
subject: demand

description: Soil erosion is estimated to cause over $7 billion in damages which occur off the farm (offsite) each year to water-based recreation, navigation, water storage facilities, municipal and industrial water users, water conveyance systems, and from increased flooding. Soil conservation programs which reduce erosion also reduce these offsite damages. This report is the first known attempt at estimating the national offsite benefits from soil conservation. This report examines the offsite damages from erosion at the national and regional levels, establishes a relationship between water-induced erosion and damages, and assesses the offsite benefits from reduced soil erosion.
Constructing rational maps with cluster points using the mating operation
Creators: name: Sharland, Thomas
Publisher: name: arXiv
Year: 2011
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37F10

description: In this article, we show that all admissible rational maps with fixed or period two cluster cycles can be constructed by the mating of polynomials. We also investigate the polynomials which make up the matings that construct these rational maps. In the one cluster case, one of the polynomials must be an $n$-rabbit and in the two cluster case, one of the maps must be either $f$, a "double rabbit", or $g$, a secondary map which lies in the wake of the double rabbit $f$. There is also a very simple combinatorial way of classifiying the maps which must partner the aforementioned polynomials to create rational maps with cluster cycles. Finally, we also investigate the multiplicities of the shared matings arising from the matings in the paper.
description: 23 pages
Decoding generalised hyperoctahedral groups and asymptotic analysis of correctible error patterns
Creators: name: Bailey, Robert
name: Prellberg, Thomas
Publisher: name: Faculty of Science, University of Calgary
Year: 2012

description: We demonstrate a majority-logic decoding algorithm for decoding the

generalised hyperoctahedral group $C_m \wr S_n$ when thought of as

an error-correcting code.  We also find the complexity of this

decoding algorithm and compare it with that of another, more general, algorithm.

Finally, we enumerate the number of error patterns exceeding the

correction capability that can be successfully decoded by this

algorithm, and analyse this asymptotically.
description: Contributions to Discrete Mathematics, Vol 7, No 1 (2012)
Searches for Dijet Resonances at Hadron Colliders
Creators: name: Harris, Robert M.
name: Kousouris, Konstantinos
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We review the experimental searches for new particles in the dijet mass spectrum conducted at the CERN SppS, the Fermilab Tevatron Collider, and the CERN Large Hadron Collider. The theory of the QCD background and new particle signals is reviewed, with emphasis on the choices made by the experiments to model the background and signal. The experimental techniques, data, and results of dijet resonance searches at hadron colliders over the last quarter century are described and compared. Model independent and model specific limits on new particles decaying to dijets are reviewed, and a detailed comparison is made of the recently published limits from the ATLAS and CMS experiments.
description: 50 pages, 23 figures, 5 tables. Submitted to International Journal of Modern Physics A
The perturbed Bessel equation, I. A Duality Theorem
Creators: name: Gurarii, V. P.
name: Gillam, D. W. H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: The Euler-Gauss linear transformation formula for the hypergeometric function was extended by Goursat for the case of logarithmic singularities. By replacing the perturbed Bessel differential equation by a monodromic functional equation, and studying this equation separately from the differential equation by an appropriate Laplace-Borel technique, we associate with the latter equation another monodromic relation in the dual complex plane. This enables us to prove a duality theorem and to extend Goursat's formula to much larger classes of functions.
Monochromatic even cycles
Creators: name: Gyárfás, András
name: Pálvölgyi, Dömötör
Publisher: name: Faculty of Science, University of Calgary
Year: 2012

description: We prove that any $r$-coloring of the edges of $K_m$ contains a monochromatic even cycle, where $m = 3r + 1$ if $r$ is odd and $m =3r$ if $r$ is even. We also prove that $K_{m−1}$ has an $r$-coloring without monochromatic even cycles.
description: Contributions to Discrete Mathematics, Vol 7, No 1 (2012)
Additional file 1 of Analysis of clinical characteristics of thyroid disorders in patients with chronic hepatitis B treated with pegylated-interferon alpha
Creators: name: Liu, Yisi
name: Zheng, Yanhong
name: Lin, Xiao
name: Cao, Zhenhuan
name: Lu, Junfeng
name: Ma, Lina
name: Ren, Shan
name: Zheng, Sujun
name: Hu, Zhongjie
name: Xu, Bin
name: Chen, Xinyue
Publisher: name: figshare
Year: 2023
Subjects: subject: Space Science
subject: Medicine
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Mental Health
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Supplementary Table 1. Thyroid function and antibody changes before and after treatment. Supplementary Table 2. Subgroup analysis of hyperthyroidism. Supplementary Table 3. Comparison between abnormal thyroid function group and nomal group.
Notes on the illumination parameters of convex bodies
Creators: name: Kiss, György
name: De Wet, Pieter Oloff
Publisher: name: Faculty of Science, University of Calgary
Year: 2012

description: Convex bodies with large illumination parameters are constructed in each dimension. The exact values of the illumination parameters of the centrally symmetric Platonic solids are calculated, and estimates on the illumination parameters of the centrally symmetric Archimedean solids are given.
description: Contributions to Discrete Mathematics, Vol 7, No 1 (2012)
British Doctrine and Canadian Guns: The Evolution of Canadian Artillery Tactics in the First World War
Creators: name: Torkelson, Cody Mackenzie
Publisher: name: Arts
Year: 2018
Subjects: subject: Canadian Corps
subject: Western Front
subject: Artillery
subject: First World War
subject: British Expeditionary Force (BEF)
subject: History--Canadian
subject: History--Military

description: During the First World War, artillery was an integral component of military operations on the Western Front. The Canadian Corps, as part of the British Expeditionary Force (BEF), relied heavily on the power of the artillery to support offensive operations. The Canadian Corps has been substantially analyzed by military historians, but the role of the artillery in the success of the Canadian Corps has been insufficiently studied. There is also considerable debate about the extent to which the Canadian Corps possessed a uniquely Canadian way of fighting. This raises the question: to what extent did Canadian artillery differ from prevailing British practice? By using archival documents and secondary sources, this thesis compares the Canadian usage of artillery on the Western Front with the development of artillery tactics and doctrine by the BEF. Through key decisions made before the war and from experience gained during difficult fighting on the Western Front, the BEF led the way in the development of artillery tactics. The Canadian Corps then effectively adapted and employed the tactics pioneered by the BEF during the Corps’ own battles, like Mount Sorrel, Vimy Ridge, and the Hundred Days offensives. Analyzing the tactics and doctrine of British and Canadian artillery on the Western Front demonstrates that the employment of the artillery by Canadian gunners did not differ substantially from the tactics and doctrine of the wider BEF.
The Eastgate-Whipsaw metamorphic belt as Paleozoic underpinnings to the Nicola Group
Creators: name: Oliver, Shelley Louise
Publisher: name: University of British Columbia
Year: 2011

description: The enigmatic Eastgate-Whipsaw metamorphic belt (EWm belt) is located on the western margin of the Late Triassic to Early Jurassic Nicola Group’s southernmost exposure in the Princeton area of south-central B.C. (NTS 092H/SE). Previously affiliated to the Nicola Group, new Early Permian ages of 281.3 ± 3.3 Ma and 282.7 ± 3.7 Ma show the EWm belt to be significantly older and is likely a southern manifestation of the Late Paleozoic Harper Ranch Group. This suggests a previously unrecognized potential in the Harper Ranch for hosting VHMS-style mineralization. The belt comprises metamorphically deformed, upper greenschist to lower amphibolite facies volcanic and volcanic-derived sedimentary rocks as well as pre- to syn-deformational intrusive phases. These rock types are divided into: 1) mafic volcanic amphibole-rich schists defining the western margin of the belt; 2) a thick, south-central package of quartzofeldspathic volcanic-derived sedimentary schists that transition northward into 3) a series of intercalated volcanic-derived sedimentary schists; 4) mafic volcanic amphibole (chlorite)-epidote schists on the south-east margin of the EWm belt; 5) a north-eastern package of felsic volcanic and volcanically-derived sedimentary schists that contain relict quartz and plagioclase phenocrysts, and 6) consanguinous meta-gabbro and foliated plagioclase porphyry intrusions of unknown ages. The EWm belt originated within an intra-arc or back-arc marine setting, as two geochemically distinct volcanic types. The eastern type 1 volcanic rocks comprise calkalkaline and tholeiitic compositions from LREE-enriched island arc basalts. The western type 2 volcanic rocks comprise a suite of back (or intra)-arc basin basalts. A complex set of foliations, the result of strong metamorphic deformation, is preserved within minor rock types of the EWm belt. The foliation set includes: 1) a dominant N-S, steeply westward dipping S₂ foliation that is predominantly continuous but also develops into differentiated crenulation cleavages, 2) a shallow east-dipping S₁ that is crenulated and progressively dextrally rotated by S₂-associated deformation, 3) a poorly-developed S₃ fabric that shallows the dominant S₂ foliation on the eastern side of the EWm belt. Equal metamorphic temperatures, equivalent to the greenschist to amphibolite facies transition, were established across the width of the EWm belt.
They Would do Better if They Worked Together: The Case of Interaction Problems Between Password Managers and Websites
Creators: name: Huaman, Nicolas
name: Amft, Sabrina
name: Oltrogge, Marten
name: Acar, Yasemin
name: Fahl, Sascha
Publisher: name: CISPA
Year: 2023

description: Password managers are tools to support users with the secure generation and storage of credentials and logins used in online accounts. Previous work illustrated that building password managers means facing various security and usability challenges. For strong security and good usability, the interaction between password managers and websites needs to be smooth and effortless. However, user reviews for popular password managers suggest interaction problems for some websites. Therefore, to the best of our knowledge, this work is the first to systematically identify these interaction problems and investigate how 15 desktop password managers, including the ten most popular ones, are affected. We use a qualitative analysis approach to identify 39 interaction problems from 2,947 user reviews and 372 GitHub issues for 30 password managers. Next, we implement minimal working examples (MWEs) for all interaction problems we found and evaluate them for all password managers in 585 test cases. Our results illustrate that a) password managers struggle to correctly implement authentication features such as HTTP Basic Authentication and modern standards such as the autocompleteattribute and b) websites fail to implement clean and wellstructured authentication forms. We conclude that some of our findings can be addressed by either PWM providers or webdevelopers by adhering to already existing standards, recommendations and best practices, while other cases are currently almost impossible to implement securely and require further research.
Packing of points into the unit 6-dimensional cube
Creators: name: Bálint, Vojtech
name: Bálint, Vojtech
Publisher: name: Faculty of Science, University of Calgary
Year: 2012

description: The best known estimate for the packing of points into the 6-dimensional unit cube in mutual distances at least 1 is improved.
description: Contributions to Discrete Mathematics, Vol 7, No 1 (2012)
On characterizing game-perfect graphs by forbidden induced subgraphs
Creators: name: Andres, Stephan Dominique
Publisher: name: Faculty of Science, University of Calgary
Year: 2012

description: A graph $G$ is called $g$-perfect if, for any induced subgraph $H$ of $G$,  the game chromatic number of $H$ equals the clique number of $H$. A graph $G$ is called $g$-col-perfect if, for any induced subgraph $H$ of $G$, the game coloring number of $H$ equals the clique number of $H$. In this paper we characterize the classes of $g$-perfect resp. $g$-col-perfect graphs by a set of forbidden induced subgraphs and explicitly. Moreover, we study similar notions for variants of the game chromatic number, namely $B$-perfect and $[A,B]$-perfect graphs, and for several variants of the game coloring number, and characterize the classes of these graphs.
description: Contributions to Discrete Mathematics, Vol 7, No 1 (2012)
The production of K+K- pairs in proton-proton collisions at 2.83 GeV
Creators: name: Ye, Q. J.
name: Hartmann, M.
name: Maeda, Y.
name: Barsov, S.
name: Buescher, M.
name: Chiladze, D.
name: Dymov, S.
name: Dzyuba, A.
name: Gao, H.
name: Gebel, R.
name: Hejny, V.
name: Kacharava, A.
name: Keshelashvili, I.
name: Kiselev, Yu. T.
name: Khoukaz, A.
name: Koptev, V. P.
name: Kulessa, P.
name: Kulikov, A.
name: Lorentz, B.
name: Mersmann, T.
name: Merzliakov, S.
name: Mikirtytchiants, S.
name: Nekipelov, M.
name: Ohm, H.
name: Paryev, E. Ya.
name: Polyanskiy, A.
name: Serdyuk, V.
name: Stein, H. J.
name: Stroeher, H.
name: Trusov, S.
name: Valdau, Yu.
name: Wilkin, C.
name: Wuestner, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Differential and total cross sections for the pp -> ppK+K- reaction have been measured at a proton beam energy of 2.83 GeV using the COSY-ANKE magnetic spectrometer. Detailed model descriptions fitted to a variety of one-dimensional distributions permit the separation of the pp -> pp phi cross section from that of non-phi production. The differential spectra show that higher partial waves represent the majority of the pp -> pp phi total cross section at an excess energy of 76 MeV, whose energy dependence would then seem to require some s-wave phi-p enhancement near threshold. The non-phi data can be described in terms of the combined effects of two-body final state interactions using the same effective scattering parameters determined from lower energy data.
description: 12 pages, 12 figures, 3 tables
Beaded partitions with k colors
Creators: name: Kolitsch, Louis W.
Publisher: name: Faculty of Science, University of Calgary
Year: 2012

description: In this paper a new category of partitions called beaded partitions with k colors will be introduced.  The generating functions for these partitions will be given and several properties and congruences will be presented.
description: Contributions to Discrete Mathematics, Vol 7, No 1 (2012)
Complementaries to Kummer's degree seven reciprocity law and a Dickson Diophantine system
Creators: name: Caranay, Perlas
Publisher: name: Faculty of Science, University of Calgary
Year: 2012

description: Let ${\mathbb Q}(\zeta)$ be the cyclotomic field obtained from ${\mathbb Q}$ by adjoining a primitive seventh root of unity $\zeta$. Normalized primary elements of this field are characterized and related to Jacobi sums and to solutions of a system of quadratic Diophantine equations of Dickson type involving a rational prime $p\equiv 1\pmod{7}$. These objects and their connection are then used to give another formulation of the complementary laws to Kummer's reciprocity law of degree seven.
description: Contributions to Discrete Mathematics, Vol 7, No 1 (2012)
Characterizing graph classes by intersections of neighborhoods
Creators: name: McKee, Terry A.
Publisher: name: Faculty of Science, University of Calgary
Year: 2012

description: The interplay between maxcliques (maximal cliques) and intersections of closed neighborhoods leads to new types of characterizations of several standard graph classes.  

For instance, being hereditary clique-Helly is equivalent to every nontrivial maxclique $Q$ containing the intersection of closed neighborhoods of two vertices of $Q$, and also to, in all induced subgraphs, every nontrivial maxclique containing a simplicial edge (an edge in a unique maxclique).  

Similarly, being trivially perfect is equivalent to every maxclique $Q$ containing the closed neighborhood of a vertex of $Q$,

and also to, in all induced subgraphs, every maxclique containing a simplicial vertex.

Maxcliques can be generalized to maximal cographs, yielding a new characterization of ptolemaic graphs.
description: Contributions to Discrete Mathematics, Vol 7, No 1 (2012)
Time-dependent inverse box-model for the estuarine circulation and primary productivity in the Strait of Georgia
Creators: name: Riche, Olivier
Publisher: name: University of British Columbia
Year: 2011

description: During 2002–2006, a comprehensive set of observations covering physical, biological, radiative and atmospheric parameters was obtained from the southern Strait of Georgia (SoG), Western Canada by the STRATOGEM program. Monthly time series of estuarine layer transports over 2002–2005 were estimated using a time-dependent 2-box model in a formal inverse approach. These transports are then consistent with the temperature and salinity fields, as well as riverine freshwater inflow (R) and atmospheric heat fluxes. Uncertainty was analyzed by resampling observations using bootstrap methods. The transport time series were then combined with observations of nutrient concentrations to construct monthly time series of nutrient uptake for nitrate, phosphate, and silicic acid. Analysis of these time series suggests that the SoG estuarine circulation is not very sensitive to the seasonal changes of R. Comparison of the surface layer transport (U₁) and R yields the first observational relationship between the SoG estuarine circulation and R. This relationship (U₁=2.68 m²s⁻²/³× 10³ R¹/³) is consistent with estuarine theories. Although the flows change slightly with the freshet, a 5-fold change in R results only in a 40% change in U₁. Based on the calculated sink of near-surface nutrients, net primary productivity is estimated to be 212 gC m⁻²yr⁻¹, which is similar to values obtained differently in similar estuaries. Comparison of the nitrate and phosphate uptake rates suggests that the primary productivity (PP) is mainly new PP during spring and summer. Thus, PP is mainly controlled by the upwelling supply of nutrients through deep inflow and entrainment. The uptake of silicic acid (Si) is almost two times larger than the uptake of nitrate during diatom spring blooms, while it is similar during the summer blooms. Such a high Si uptake suggests that spring diatoms form heavier frustules or that heterotrophic silicoflagellates compete with diatoms for Si. Speculative considerations based on comparison of the estimated production rate of near-surface oxygen and new PP also suggest that the regenerated PP is small. In addition, the summer heterotrophic respiration might be in excess by as much as 2 gO m⁻² d⁻¹ relative to the net PP.
title: Playful innovations
title: Spielerische Innovationen - Neue Konzepte im Kontext von Multiplayer-Videospielen
titleType: AlternativeTitle
Creators: name: Bastian, Kordyaka
Publisher: name: Universitätsbibliothek Siegen
Year: 2020
Subjects: subject: Multiplayer Video Games
subject: Player Experience
subject: Digital Consumer Behavior
subject: eSports

description: The cumulative dissertation (title: “Playful Innovations - Emerging Concepts in the Context of Multiplayer Videogames”) deals with relevant concepts of the widespread dissemination and economic success of an emerging class of digital technologies, so-called multiplayer video games (including League of Legends, Fortnite, PlayerUnknown's Battlegrounds). Whereby, the dissertation combines aspects of business informatics, business administration and psychology in an innovative way. The dissertation consists of a total of nineteen already published research articles that focus on new forms of player experience and consumer behavior. The publications are distributed among internationally recognized journals (Internet Research, International Journal on Media Management) and leading conferences in informations systems (International Conference on Information Systems, European Conference on Information Systems) and digital games with an excellent reputation (The Annual Symposium on Computer- Human Interaction in Play, Digital Games Research Association Conference).
description: Die kumulative Dissertation (Titel: „Playful Innovations - Emerging Concepts in the Context of Multiplayer Videogames”) beschäftigt sich mit relevanten Konzepten der weiten Verbreitung und des ökonomischen Erfolgs einer aufstrebenden Klasse digitaler Technologien, sogenannten Mehrspieler Videospielen (u.a. League of Legends, Fortnite, PlayerUnknown's Battlegrounds). Dabei vereint die Dissertation Aspekte der Wirtschaftsinformatik, Betriebswirtschaftslehre und Psychologie in einer innovativen Art und Weise. Die Dissertation besteht aus insgesamt neunzehn bereits publizierten Forschungsartikeln. Ein besonderer Fokus liegt hierbei auf neuartigen Formen der Player Experience und dem Verhalten von Konsumenten. Die Publikationen verteilen sich dabei auf international anerkannte Zeitschriften (Internet Research, International Journal on Media Management) und führende Konferenzen der Wirtschaftsinformatik (International Conference on Information Systems, European Conference on Information Systems) sowie digitaler Spiele mit ausgezeichnetem Ruf (The Annual Symposium on Computer-Human Interaction in Play, Digital Games Research Association Conference).
Compositional Synthesis of Modular Systems
Creators: name: Finkbeiner, Bernd
name: Passing, Noemi
Publisher: name: CISPA
Year: 2023

description: Given the advances in reactive synthesis, it is a natural next step to consider more complex multi-process systems. Distributed synthesis, however, is not yet scalable. Compositional approaches can be a game changer. Here, the challenge is to decompose a given specification of the global system behavior into requirements on the individual processes. In this paper, we introduce a compositional synthesis algorithm that, for each process, constructs, in addition to the implementation, a certificate that captures the necessary interface between the processes. The certificates then allow for constructing separate requirements for the individual processes. By bounding the size of the certificates, we can bias the synthesis procedure towards solutions that are desirable in the sense that the assumptions between the processes are small. Our experimental results show that our approach is much faster than standard methods for distributed synthesis as long as reasonably small certificates exist.
Microstructure and magnetic anisotropy of electrospun Cu$_{1-x}$Zn$_x$Fe$_2$O$_4$ nanofibers: A local probe study
Creators: name: Li, Zhiwei
name: Pan, Weiwei
name: Zhang, Junli
name: Yi, Haibo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Understanding the phenomena at the nanometer scale is of fundamental importance for future improvements of desired properties of nanomaterials. We report a detailed investigation of the microstructure and the resulting magnetic anisotropy by magnetic, transmission electron microscope (TEM) and Mössbauer measurements of the electrospun Cu$_{1-x}$Zn$_x$Fe$_2$O$_4$ nanofibers. Our results show that the electrospun Cu$_{1-x}$Zn$_x$Fe$_2$O$_4$ nanofibers exhibit nearly isotropic magnetic anisotropy. TEM measurements indicate that the nanofibers are composed of loosely connected and randomly aligned nanograins. As revealed by the Henkel plot, these nanofibers and the nanograins within the nanofibers are dipolar coupled, which reduces the effective shape anisotropy leading to a nearly random configuration of the magnetic moments inside the nanofibers, hence, the observed nearly isotropic magnetic anisotropy can be easily understood.
description: 5 pages, 5 Figures to be published in J. Phys. D: Appl. Phys
Magnetic field studies of massive main sequence stars
Creators: name: Schoeller, M.
name: Hubrig, S.
name: Ilyin, I.
name: Kharchenko, N. V.
name: Briquet, M.
name: Langer, N.
name: Oskinova, L. M.
name: collaboration, the MAGORI
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report on the status of our spectropolarimetric observations of massive stars. During the last years, we have discovered magnetic fields in many objects of the upper main sequence, including Be stars, beta Cephei and Slowly Pulsating B stars, and a dozen O stars. Since the effects of those magnetic fields have been found to be substantial by recent models, we are looking into their impact on stellar rotation, pulsation, stellar winds, and chemical abundances. Accurate studies of the age, environment, and kinematic characteristics of the magnetic stars are also promising to give us new insight into the origin of the magnetic fields. Furthermore, longer time series of magnetic field measurements allow us to observe the temporal variability of the magnetic field and to deduce the stellar rotation period and the magnetic field geometry. Studies of the magnetic field in massive stars are indispensable to understand the conditions controlling the presence of those fields and their implications on the stellar physical parameters and evolution.
description: 4 pages, 6 figures, to appear in Astronomische Nachrichten, Proceedings of the 7th Potsdam Thinkshop on "Magnetic Fields in Stars and Exoplanets"
Cultural Influences on Impression Management: A Focus on Internationally-Educated Engineers
Creators: name: Radan, Jelena
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: impression management
subject: self-presentation
subject: immigrant professionals
subject: cultural influences
subject: Skilled Immigrants
subject: employment interview
subject: newcomer professionals
subject: human resources professionals perceptions
subject: Educational Psychology

description: Internationally-educated immigrants in regulated professions often encounter numerous barriers when striving to find employment commensurate with their skills and experience in Canada. Understanding the Canadian cultural norms and workplace culture is imperative for their success in the employment interview. This research captures employers' perceptions of how cultural influences in the interview impact their evaluations of job applicants, and in turn, their hiring decisions. To expand upon the existing research, the present study sought to explore how cultural differences within the interview context influence Human Resources professionals' perceptions of candidates and in turn, how these perceptions affect Human Resources professionals' evaluations of job applicants. Through the use of the Enhanced Critical Incident Technique, eight Human Resources professionals within the Oil and Gas Industry offered incidents that facilitated, impeded, and could improve the interview performance of Internationally-Educated Engineers. Five overarching themes emerged from the data analysis: (a) industry-specific knowledge requirement, (b) confidence and abilities, (c) personal attributes, (d) job-search process, and (e) communication skills. These results were considered in light of relevant literature, including recommendations for employers and career practitioners to enhance employment outcomes of skilled immigrants and directions for future research.
Light scalar field constraints from gravitational-wave observations of compact binaries
Creators: name: Berti, Emanuele
name: Gualtieri, Leonardo
name: Horbatsch, Michael
name: Alsing, Justin
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Scalar-tensor theories are among the simplest extensions of general relativity. In theories with light scalars, deviations from Einstein's theory of gravity are determined by the scalar mass m_s and by a Brans-Dicke-like coupling parameter ω_{BD}. We show that gravitational-wave observations of nonspinning neutron star-black hole binary inspirals can be used to set lower bounds on ω_{BD} and upper bounds on the combination m_s/\sqrt{ω_{BD}}$. We estimate via a Fisher matrix analysis that individual observations with signal-to-noise ratio ρwould yield (m_s/\sqrt{ω_{BD}})(ρ/10)<10^{-15}, 10^{-16} and 10^{-19} eV for Advanced LIGO, ET and eLISA, respectively. A statistical combination of multiple observations may further improve these bounds.
description: 9 pages, 4 figures. Matches version accepted in Physical Review D
Degrees and Gaps: Tight Complexity Results of General Factor Problems Parameterized by Treewidth and Cutwidth
Creators: name: Marx, Dániel
name: Sankar, Govind S.
name: Schepper, Philipp
Publisher: name: CISPA
Year: 2023

description: In the General Factor problem, we are given an undirected graph G and for each vertex v ∈ V(G) a finite set B_v of non-negative integers. The task is to decide if there is a subset S ⊆ E(G) such that deg_S(v) ∈ B_v for all vertices v of G. Define the max-gap of a finite integer set B to be the largest d ≥ 0 such that there is an a ≥ 0 with [a,a+d+1] ∩ B = {a,a+d+1}. Cornuéjols showed in 1988 that if the max-gap of all sets B_v is at most 1, then the decision version of General Factor is polynomial-time solvable. This result was extended 2018 by Dudycz and Paluch for the optimization (i.e. minimization and maximization) versions. We present a general algorithm counting the number of solutions of a certain size in time (M+1)^{tw}n^{O(1)}, given a tree decomposition of width tw, where M is the maximum integer over all B_v. By using convolution techniques from van Rooij (2020), we improve upon the previous (M+1)^{3tw}n^{O(1)} time algorithm by Arulselvan et al. from 2018. We prove that this algorithm is essentially optimal for all cases that are not trivial or polynomial time solvable for the decision, minimization or maximization versions. Our lower bounds show that such an improvement is not even possible for B-Factor, which is General Factor on graphs where all sets B_v agree with the fixed set B. We show that for every fixed B where the problem is NP-hard, our (max B+1)^{tw}n^{O(1)} algorithm cannot be significantly improved: assuming the Strong Exponential Time Hypothesis (SETH), no algorithm can solve B-Factor in time (max B+1-ε)^{tw}n^{O(1)} for any ε > 0. We extend this bound to the counting version of B-Factor for arbitrary, non-trivial sets B, assuming #SETH. We also investigate the parameterization of the problem by cutwidth. Unlike for treewidth, having a larger set B does not appear to make the problem harder: we give a 2^{cutw}n^{O(1)} algorithm for any B and provide a matching lower bound that this is optimal for the NP-hard cases.
Fuel Ethanol and Agriculture: An Economic Assessment
Creators: name: Gavett, Earle E.
name: Grinnell, Gerald E.
name: Smith, Nancy L.
name: Gavett, Earle E.
name: Grinnell, Gerald E.
name: Smith, Nancy L.
Publisher: name: Unknown
Year: 1986
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: International Relations/Trade
subject: Resource /Energy Economics and Policy
subject: Fuel ethanol
subject: corn producers
subject: agricultural commodity programs
subject: energy
subject: renewable resources
subject: Federal subsidies
subject: FAPSIM

description: Increased fuel ethanol production from renewable resources like grain through 1995 would raise net farm income benefiting mainly corn and livestock producers. Production of additional byproduct feeds would depress prices of soybeans. Large ethanol subsidies, which are required to sustain the industry, would offset any savings in agricultural commodity programs. Increased ethanol production would also raise consumer expenditures for food. Any benefits of higher income to farmers would be more than offset by increased Government costs and consumer food expenditures. Direct cash payments to corn growers would be more economical than attempting to boost farm income through ethanol subsidies.
A Fuzzy Realistic Mobility Model For Ad hoc Networks
Creators: name: Amirshahi, Alireza
name: Fathi, Mahmood
name: Romoozi, Morteza
name: Assarian, Mohammad
Publisher: name: arXiv
Year: 2011
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Realistic mobility models can demonstrate more precise evaluation results because their parameters are closer to the reality. In this paper a realistic Fuzzy Mobility Model has been proposed. This model has rules which is changeable depending on nodes and environment conditions. This model is more complete and precise than the other mobility models and this is the advantage of this model. After simulation, it was found out that not only considering nodes movement as being imprecise (fuzzy) has a positive effects on most of ad hoc network parameters, but also, more importantly as they are closer to the real world condition, they can have a more positive effect on the implementation of ad hoc network protocols.
Partial dynamical symmetries in quantum systems
Creators: name: Leviatan, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss the the notion of a partial dynamical symmetry (PDS), for which a prescribed symmetry is obeyed by only a subset of solvable eigenstates, while other eigenstates are strongly mixed. We present an explicit construction of Hamiltonians with this property, including higher-order terms, and portray their significance for spectroscopy and shape-phase transitions in nuclei. The occurrence of both a single PDS, relevant to stable structures, and of several PDSs, relevant to coexistence phenomena, are considered.
description: 16 pages, 7 figures, talk at Symposium "Symmetries in Science XV", July 31 - August 5, 2011, Bregenz, Austria