cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Novel and highly efficient electro-catalytic cycloaddition of CO2 and epoxides to cyclic carbonates over reusable ionic liquid-based cooperative catalytic system
Creators: name: Hu, Yu Lin
name: Liu, Xiao Bing
name: Rong, Qi
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biochemistry
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Computational Biology

description: A novel and highly efficient electro-catalytic protocol for the synthesis of cyclic carbonates from epoxides and CO2 using 1-aminopropyl-3-methylimidazolium dicyanamide ([APMIm]DCA) as the supporting electrolyte, graphite as the anode, and Ti/TiO2-CNT-Pt as the cathode has been developed. Based on the cooperative effect between active Ti/TiO2-CNT-Pt cathode and active sites of supporting ionic liquid electrolyte [APMIm]DCA, CO2 and epoxides could be effectively converted into the corresponding cyclic carbonates in high to excellent yields under mild conditions. Moreover, the electro-catalytic system could be easily recovered and reused for six successive cycles without a considerable decrease in catalytic activity. This work provides a sustainable and efficient cooperative strategy for the chemical fixation of carbon dioxide into valuable cyclic carbonates.
Ferromagnetism in semiconductors and oxides: prospects from a ten years' perspective
Creators: name: Dietl, Tomasz
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Over the last decade the search for compounds combining the resources of semiconductors and ferromagnets has evolved into an important field of materials science. This endeavour has been fuelled by continual demonstrations of remarkable low-temperature functionalities found for ferromagnetic structures of (Ga,Mn)As, p-(Cd,Mn)Te, and related compounds as well as by ample observations of ferromagnetic signatures at high temperatures in a number of non-metallic systems. In this paper, recent experimental and theoretical developments are reviewed emphasising that, from the one hand, they disentangle many controversies and puzzles accumulated over the last decade and, on the other, offer new research prospects.
description: review, 13 pages, 8 figures, 109 references
Isolation and chemical characterisation of pyrrolisidine alkaloids from some senecio
Creators: name: Were, Obuya Stevens
Publisher: name: University of Calgary
Year: 1991
Subjects: subject: QK 495 C74 W47 1991
subject: Senecio - Africa, East
subject: Senecio - Canada
subject: Pyrrolizidines

description: Bibliography: p. 174-182.
title: Mehrzweckgebäude
Creators: name: Dörfler, Wolfgang
name: Klages, Ulrich
name: Turner, Hans-Joachim
name: Segers-Glocke, Christiane
name: _, Institut Für Denkmalpflege
Publisher: name: University Library Heidelberg
Year: 1994

description: Die Schafställe der Nordheide
Bio-based light-healing isocyanate-free polyurethanes derived from carbonated soybean oil and coumarin
Creators: name: Boga, Karteek
name: Dhore, Nikhil Rambharosh
name: Palanisamy, Aruna
name: Patti, Antonio F.
name: Warner, John C.
name: Simon, George P.
name: Saito, Kei
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified

description: In response to environmental concerns and restrictions on isocyanate-based materials, researchers and the coatings industry are focused on developing eco-friendly isocyanate-free polyurethanes. This article introduces a novel class of environmentally-friendly, initiator/catalyst-free, UV-curable, self-healing non-isocyanate polyurethanes (NIPUs) synthesized from bio-based carbonated soybean oil (CSO) and non-toxic coumarin. The synthesis of these polymers is based on using a photo-reactive coumarin that undergoes a reversible [2 + 2] cycloaddition upon exposure to the wavelength of UV light. UV-curable three coumarin-terminated isocyanate-free polyurethane prepolymers were synthesized using CSO and three different amines and epoxy coumarin. Subsequently, a set of cross-linked NIPU polymers were obtained with exposure of 365 nm UV irradiation. The photo-reversible nature of these polymers was investigated in response to various wavelengths of UV radiation. Additionally, their self-healing ability and the thermal and mechanical properties of NIPU coatings were studied using optical microscopy, thermogravimetric analysis, differential scanning calorimetry, and a universal testing machine. The outcomes demonstrate that this polyurethane has the potential to provide a sustainable alternative to isocyanate-based materials. Two examples of stimulated healing are given, that of healing a scratch and the other being the healing of a sample that has been mechanically stressed to failure in a tensile mode.
Nobody's business: the escort industry in Calgary
Creators: name: Williams, Sharon L.
Publisher: name: University of Calgary
Year: 1991
Subjects: subject: HQ 150 C3 W54 1991
subject: Escort services - Alberta - Calgary
subject: Prostitution, Alberta - Calgary

description: Bibliography: p. 175-186.
description: This exploratory research investigates the escort industry in Calgary during the 1980's. Within the context of the legal, historical, social, demographic and economic milieu of the greater society, the world of off-street prostitution is examined from a micro-interactive as well as a macro-structural economic perspective. Two approaches have been suggested for entry to prostitution: personal pathology and rational choice. A supply and demand model is proposed to explain the expansion and contraction of both the cohort of individuals working in the escort business and the demand for their services. The agents of social control, the City of Calgary Licensing Department and the Calgary Police Service, and the federal and municipal legislation which regulate prostitution generally -- and the escort industry particularly -- are examined in light of the ambiguity and inherent tension between the conflicting demands of morality and legality. A cost/benefit and an economic analysis at the provincial level suggest that the state of the oil and gas industry has a profound effect on the increase or decrease in the numbers of licensed escorts through its effect on the employment of both men and women. This ground breaking project provides a base for future research into the marginalized and mysterious world of off-street prostitution -- the escort industry.
The Formation of Stellar Cusps in Galactic Nuclei
Creators: name: Murphy, Brian W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The dynamics of galactic nuclei can be affected by several mechanisms. Among these are stellar evolution, stellar collisions, mass segregation, and tidal disruptions of stars due to the central black hole. In this presentation I will address how each of these affects the stellar cusp and the resulting observational signatures. Using a set of dynamically evolving Fokker-Planck simulations I present the dynamical evolution a nuclear stellar cluster and the growth of the central massive black hole within the Galactic Nucleus. In addition to the Galactic Center I explore a wide variety of galactic nuclei and their resulting stellar cusps.
description: 10 pages, 7 figures
Diabetes reduces the heparin-, vanadate-, and phospholipase C-induced release of lipoprotein lipase from cardiac myocytes
Creators: name: Braun, Janice E. A.
Publisher: name: University of Calgary
Year: 1991
Subjects: subject: QP 609 L5 B73 1991
subject: Lipoprotein lipase
subject: Diabetes - Research

description: Bibliography: p. 190-204.
An examination of the care perspective in southern Baptist foreign missionaries
Creators: name: Wyman, Barbara Walker
Publisher: name: University of Calgary
Year: 1991
Subjects: subject: BV 2094.6 W95 1991
subject: College students - Attitudes
subject: Caring
subject: Gilligan, Carol, 1936- In a different voice
subject: Missionaries - Attitudes

description: Bibliography: p. 127-145.
Measurement of electrical properties of biological cells using a dielectrophoretic levitation system
Creators: name: Xie, Jingping
Publisher: name: University of Calgary
Year: 1991
Subjects: subject: QC 585.7 D5 X53 1991
subject: Dielectrophoresis
subject: Cell separation
subject: Cytochemistry
subject: Polarization (Electricity)

description: Bibliography: p. 105-109.
The influence of the network topology on epidemic spreading
Creators: name: Smilkov, Daniel
name: Kocarev, Ljupco
Publisher: name: arXiv
Year: 2011
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The influence of the network's structure on the dynamics of spreading processes has been extensively studied in the last decade. Important results that partially answer this question show a weak connection between the macroscopic behavior of these processes and specific structural properties in the network, such as the largest eigenvalue of a topology related matrix. However, little is known about the direct influence of the network topology on microscopic level, such as the influence of the (neighboring) network on the probability of a particular node's infection. To answer this question, we derive both an upper and a lower bound for the probability that a particular node is infective in a susceptible-infective-susceptible model for two cases of spreading processes: reactive and contact processes. The bounds are derived by considering the $n-$hop neighborhood of the node; the bounds are tighter as one uses a larger $n-$hop neighborhood to calculate them. Consequently, using local information for different neighborhood sizes, we assess the extent to which the topology influences the spreading process, thus providing also a strong macroscopic connection between the former and the latter. Our findings are complemented by numerical results for a real-world e-mail network. A very good estimate for the infection density $ρ$ is obtained using only 2-hop neighborhoods which account for 0.4% of the entire network topology on average.
description: 11 pages, 6 figures
Optimal biculture competitor from Understanding cellular growth strategies via optimal control
Creators: name: Mononen, Tommi
name: Kuosmanen, Teemu
name: Cairns, Johannes
name: Mustonen, Ville
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Computational Biology
subject: 10202 Biological Mathematics
subject: FOS: Mathematics

description: Computing control maps for the optimal biculture competitor and a visual comparison to the greedy phenotype
Ultrasound-assisted green synthesis of triazole-based azomethine/thiazolidin-4-one hybrid inhibitors for cancer therapy through targeting dysregulation signatures of some Rab proteins
Creators: name: Abdelmonsef, Aboubakr H.
name: El-Saghier, Ahmed M.
name: Kadry, Asmaa M.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Mental Health

description: The overexpression of Rab proteins was linked to cancer development, making this family of proteins an attractive drug target for the identification of novel inhibitors against tumor diseases. In this study, novel triazole-based azomethine/thiazolidin-4-one hybrid analogs were designed, prepared and structurally confirmed by using elemental and spectral techniques, these include FT-IR, MS, and NMR spectra. In addition, in vitro cytotoxic activity was assessed against NCI-60 cancer cell lines. To understand the possible mode of action and drugability, molecular docking studies and drug-likeness were achieved. The docking simulations were performed against various Rab family proteins Rab2a, Rab25, Rab5, and Rab35; promising targets for cancer medication to support the cytotoxicity findings and to further validate the action of new molecules. Furthermore, in silico ADMET screening of the molecules was within the recommended values stated by Lipinski's rule of five (Ro5), indicating their oral bioavailability and therapeutic potentials. Among the newly prepared analogs tested, compounds 4d and 3d exhibited significant antitumor activity against breast, ovarian, lung, and leukemia cancer cell lines. Our findings suggested that azomethine/thiazolidin-4-one moieties incorporated triazole analogs are a promising class of molecular entities for the development of new anticancer therapies, through targeting of some Rab proteins.
Confinement and Viscoelastic effects on Chain Closure Dynamics
Creators: name: Bhattacharyya, Pinaki
name: Sharma, Rati
name: Cherayil, Binny J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Chemical reactions inside cells are typically subject to the effects both of the cell's confining surfaces and of the viscoelastic behavior of its contents. In this paper, we show how the outcome of one particular reaction of relevance to cellular biochemistry - the diffusion-limited cyclization of long chain polymers - is influenced by such confinement and crowding effects. More specifically, starting from the Rouse model of polymer dynamics, and invoking the Wilemski-Fixman approximation, we determine the scaling relationship between the mean closure time t_{c} of a flexible chain (no excluded volume or hydrodynamic interactions) and the length N of its contour under the following separate conditions: (a) confinement of the chain to a sphere of radius D, and (b) modulation of its dynamics by colored Gaussian noise. Among other results, we find that in case (a) when D is much smaller than the size of the chain, t_{c}\simND^{2}, and that in case (b), t_{c}\simN^{2/(2-2H)}, H being a number between 1/2 and 1 that characterizes the decay of the noise correlations. H is not known à priori, but values of about 0.7 have been used in the successful characterization of protein conformational dynamics. At this value of H (selected for purposes of illustration), t_{c}\simN^3.4, the high scaling exponent reflecting the slow relaxation of the chain in a viscoelastic medium.
Nitrogen metabolism during somatic embryogenesis in Picea glauca and Daucus carota : a NMR study
Creators: name: Joy, Richard W.
Publisher: name: University of Calgary
Year: 1991
Subjects: subject: QK 898 N6 J68 1991
subject: Nitrogen - Metabolism
subject: Plants - Metabolism
subject: Botany - Embryology
subject: Plant propagation

description: Bibliography: p. 265-302.
description: offsite
Including many-body screening into self-consistent calculations: Tight-binding model studies with the Gutzwiller approximation
Creators: name: Yao, Y. X.
name: Wang, C. Z.
name: Ho, K. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We introduce a scheme to include many-body screening processes explicitly into a set of self-consistent equations for electronic structure calculations using the Gutzwiller approximation. The method is illustrated by the application to a tight-binding model describing the strongly correlated γ-Ce system. With the inclusion of the 5d-electrons into the local Gutzwiller projection subspace, the correct input Coulomb repulsion U_{ff} between the 4f-electrons for γ-Ce in the calculations can be pushed far beyond the usual screened value U_{ff}^{scr} and close to the bare atomic value U_{ff}^{bare}. This indicates that the d-f many-body screening is the dominant contribution to the screening of U_{ff} in this system. The method provides a promising way towards the ab initio Gutzwiller density functional theory.
Power Mobility Driving Assessments Utilized in Clinical Practice: A Scoping Review Protocol
Creators: name: Gray, Richelle
name: Hay, Catherine Cooper
name: Yates, Jennifer
name: Russell Bliss, Joanna
Publisher: name: figshare
Year: 2023
Subjects: Occupational therapy

description: The protocol for this scoping review aims to investigate and include literature that looks at power mobility assessments utilized most in clinical practice in institutional settings for adult powered mobility device (PMD) users. The scoping review will address the following research question: What power mobility assessments are used most in clinical practice in institutional settings for adult powered mobility device (PMD) users?
The development of social attributions at the intergroup levela neo-Piagetian approach
Creators: name: McArthur, G. Bruce
Publisher: name: University of Calgary
Year: 1991
Subjects: subject: Piaget, Jean, 1896-1980
subject: Categorization (Psychology) in children
subject: Children - Attitudes
subject: Race awareness in children - Canada

description: The author, G. Bruce McArthur, died before he could defend his thesis. However, this version of his thesis is the one that he intended to defend at his oral examination. The thesis was depisted in the Archives with the hope that others who are interested in this field of study may benefit from the findings of Mr. McArthur's study.
Site characterizations for geometric invariants of toposes
Creators: name: Caramello, Olivia
Publisher: name: arXiv
Year: 2011
Subjects: subject: Category Theory (math.CT)
subject: Algebraic Geometry (math.AG)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 18B25, 18D99, 14A99

description: We discuss the problem of characterizing the property of a Grothendieck topos to satisfy a given 'geometric' invariant as a property of its sites of definition, and indicate a set of general techniques for establishing such criteria. We then apply our methodologies to specific invariants, notably including the property of a Grothendieck topos to be localic (resp. atomic, locally connected, equivalent to a presheaf topos), obtaining explicit site characterizations for them.
description: 17 pages
The helium content of globular clusters: NGC6121 (M4)
Creators: name: Villanova, S.
name: Geisler, D.
name: Piotto, G.
name: Gratton, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: He has been proposed as a key element to interpret the observed multiple MS, SGB, and RGB, as well as the complex horizontal branch (HB) morphology. Stars belonging to the bluer part of the HB, are thought to be more He rich (ΔY=0.03 or more) and more Na-rich/O-poor than those located in the redder part. This hypothesis was only partially confirmed in NGC 6752, where stars of the redder zero-age HB showed a He content of Y=0.25+-0.01, fully compatible with the primordial He content of the Universe, and were all Na-poor/O-rich. Here we study hot blue HB (BHB) stars in the GC NGC 6121 (M4) to measure their He plus O/Na content. We observed 6 BHB stars using the UVES@VLT2 spectroscopic facility. In addition to He, O, Na, and Fe abundances were estimated. Stars turned out to be all Na-rich and O-poor and to have a homogeneous enhanced He content with a mean value of Y=0.29+-0.01(random)+-0.01(systematic). The high He content of blue HB stars in M4 is also confirmed by the fact that they are brighter than red HB stars (RHB). Theoretical models suggest the BHB stars are He-enhanced by ΔY=0.02-0.03 with respect to the RHB stars. The whole sample of stars has a metallicity of [Fe/H]=-1.06+-0.02 (internal error). This is a rare direct measurement of the (primordial) He abundance for stars belonging to the Na-rich/O-poor population of GC stars in a temperature regime where the He content is not altered by sedimentation or extreme mixing as suggested for the hottest, late helium flash HB stars. Our results support theoretical predictions that the Na-rich/O-poor population is also more He-rich than the Na-poor/O-rich generation and that a leading contender for the 2^{nd} parameter is the He abundance.
description: 18 pages, 8 figures, accepted for publication on ApJ
We.I.Pe: Web Identification of People using e-mail ID
Creators: name: Kuppusamy, K. S.
name: Aghila, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences
subject: H.3.3
subject: 68P20 Information storage and retrieval

description: With the phenomenal growth of content in the World Wide Web, the diversity of user supplied queries have become vivid. Searching for people on the web has become an important type of search activity in the web search engines. This paper proposes a model named "We.I.Pe" to identify people on the World Wide Web using e-mail Id as the primary input. The approach followed in this research work provides the collected information, based on the user supplied e-mail id, in an easier to navigate manner. The grouping of collected information based on various sources makes the result visualization process more effective. The proposed model is validated by a prototype implementation. Experiments conducted on the prototype implementation provide encouraging results
description: 7 Pages, 4 Figures; ISSN : 0975-3397
Development and implementation of a case study assessment using biobased 5-hydroxymethylfurfural to teach redox reactions in undergraduate organic courses
Creators: name: Grieger, Krystal
name: Leontyev, Alexey
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Space Science
subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: This paper addresses the development and evaluation of a case study designed to introduce both the core chemistry concepts of oxidation and reduction reactions as well as green chemistry within the undergraduate organic chemistry curriculum. The developed case study consisted of two parts that can be used in tandem or independently. Part 1 focused on calculating oxidation states and determining whether the provided bioderived reactions represented oxidation or reduction reactions, and Part 2 focused on evaluating the greenness of oxidation reactions. Students reported positive learning gains for both the core chemistry concepts of oxidation and reduction reactions and green chemistry and reported that they viewed the case study favorably. It is our hope that other educators use this case study module to incorporate green chemistry into their organic courses and use its development as inspiration to create further case studies that integrate green chemistry into the curriculum.
RF thermal and new cold part design studies on TTF-III input coupler for Project-X
Creators: name: Pei, Shilun
name: Adolphsen, Chris E
name: Li, Zenghai
name: Solyak, Nikolay A
name: Gonin, Ivan V
Publisher: name: arXiv
Year: 2011
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: RF power coupler is one of the key components in superconducting (SC) linac. It provides RF power to the SC cavity and interconnects different temperature layers (1.8K, 4.2K, 70K and 300K). TTF-III coupler is one of the most promising candidates for the High Energy (HE) linac of Project X, but it cannot meet the average power requirements because of the relatively high temperature rise on the warm inner conductor, some design modifications will be required. In this paper, we describe our simulation studies on the copper coating thickness on the warm inner conductor with RRR value of 10 and 100. Our purpose is to rebalance the dynamic and static loads, and finally lower the temperature rise along the warm inner conductor. In addition, to get stronger coupling, better power handling and less multipacting probability, one new cold part design was proposed using 60mm coaxial line; the corresponding multipacting simulation studies have also been investigated.
description: 5 pages, 12 figures. Submitted to Chinese Physics C (Formerly High Energy Physics and Nuclear Physics)
Homeownership affordability in Calgary: Now a middle class problem
Creators: name: Creelman, Tim J.
Publisher: name: Environmental Design
Year: 1991

description: Bibliography: p. 112-115
description: Homeownership is the tenure of choice for a majority of Canadians. Federal housing policy, since 1935, has fostered this preference through a myriad of Housing Acts and amendments over the years. Together with Provincial Governments, a continual array of both direct and indirect housing subsidy programs has occupied public sector housing agendas. Fiscal restraint has led to program erosion in recent years such that there is now no public sector assistance for prospective homeowners. This has coincided with an increased private sector role in society, epitomized by the current privatization environment in Western countries. It is argued that the private sector is no stranger to aspects of public pol icy 11 delivery, and that tax benefit driven policy can be a successful partnership 11 in some public policies. While not yet of crisis proportions, homeownership in Calgary is becoming more of a challenge to median family income and below groups. Increasingly, new home districts on Calgary's periphery cater to above average income Calgarians, with a declining inventory of "starter" and used affordable dwellings available to modest income Calgarians. It is concluded that the $25,000 to $40,000 income groups in Calgary are the real losers in the 1991 housing market in Calgary, especially given the erosion of previously targeted public sector homeownership assistance, and the tendency of private sector incentives to ignore this segment in favor of the more lucrative wealthy buyer. Given the leadership 11 void11 in homeownership assistance available to modest income groups, declining affordability and locational choice in Calgary's new and used housing markets, it is argued that a private sector led initiative can offer a financial alternative to these groups experiencing the increasing homeownership challenge. Representative of the growing private sector role in Canadian society, a "matching funds" down payment scheme can help modest income groups achieve homeownership, with a greater locational and dwelling unit choice. It is argued that an incremental assistance alternative can have the most success here and now, recognizing existing conceptual frameworks and institutional settings.
Lieutenant-general Sir Arthur Currie and the Canadian Corps 1917-1918: the evolution of a style of command and attack
Creators: name: Brown, Ian Malcolm
Publisher: name: University of Calgary
Year: 1991
Subjects: subject: D 547 C2 B76 1991
subject: World War, 1914-1918 - Canada
subject: Canada. Army. Canadian Corps
subject: Currie, Arthur William, Sir, 1875-1933
subject: Command of troops
subject: Leadership

description: Bibliography: p. 109-116.
description: Despite the efforts of a number of influential authors, the common view of the First World War remains one of futile battles wherein millions of men became casualties because of callous and inept generalship. This has carried over to Canadian views of the war, except that Canadians also believe that their troops were uncommonly good soldiers handicapped by such generalship. This is unfair and inaccurate. Between 1917 and 1918, the Canadian Corps was able to develop a particularly successful style of attack which succeeded consistently. By the end of 1918, the Canadian Corps was utilising a complex and efficient fire-power based attacking system which included sound tactical methods. This operational system evolved out of the lessons of previous years. That the Canadian Corps was able to develop such an effective attacking style is a tribute to its commander in 1917 and 1918, Lieutenant-General Sir Arthur Currie - the first Canadian to command such a large national force as the Corps in combat. Currie's personal style of command was well suited to the First World War. It was a style he shared, to some extent, with Lt.-Gen. Sir John Monash, the notably successful commander of the Australian Corps in 1918. Currie's style evolved out of his background as a businessman, teacher and militia officer before the war. It was a style that was open to, and actively searched for, new ideas to increase success and redrice casualties, and Currie's command of a homogeneous, national Corps allowed new ideas to be easily integrated into the Canadian Corps.
Callen-like method for the classical Heisenberg ferromagnet
Creators: name: Campana, L. S.
name: Cavallo, A.
name: De Cesare, L.
name: Esposito, U.
name: Naddeo, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A study of the d-dimensional classical Heisenberg ferromagnetic model in the presence of a magnetic field is performed within the two-time Green function's framework in classical statistical physics. We extend the well known quantum Callen method to derive analytically a new formula for magnetization. Although this formula is valid for any dimensionality, we focus on one- and three- dimensional models and compare the predictions with those arising from a different expression suggested many years ago in the context of the classical spectral density method. Both frameworks give results in good agreement with the exact numerical transfer-matrix data for the one-dimensional case and with the exact high-temperature-series results for the three-dimensional one. In particular, for the ferromagnetic chain, the zero-field susceptibility results are found to be consistent with the exact analytical ones obtained by M.E. Fisher. However, the formula derived in the present paper provides more accurate predictions in a wide range of temperatures of experimental and numerical interest.
description: 19 pages, 3 figures
title: BESS: bounded evaluation SQL systems
Creators: name: Yuan, Tengfei
Publisher: name: The University of Edinburgh
Year: 2022
Subjects: subject: bounded evaluation systems
subject: BESS
subject: DBMS
subject: parametric SQL queries over keyed blocks on KV stores
subject: SQL query evaluation over NoSQL

description: It could be prohibitively costly to query big relations, even with the power of parallel processing on clusters containing thousands of machines. The tremendous resource burden drives us to find an alternative method to answer big datasets, which need to be affordable for small businesses and lightweight software. The theory of bounded evaluation could reduce queries on big data to computations on small data. It advocates an unconventional query evaluation paradigm under an access schema A, a combination of cardinality constraints and associated indices. For practical use to emerge from the work, it is urgent to design a database system with bounded evaluation capacity. Firstly, the thesis proposes the design and framework of bounded evaluation systems named BESS. The framework is conducted by two workflows, online query processing and offline access schema management. Its unique features are discussed, which differ from the framework paradigm and conventional database systems. Besides, the thesis shows the feasibility of the framework with two implementation variants. The challenges and advantages of each approach are discussed during the comparison of the workflows. Secondly, the thesis presents a prototype named BEAS, targeting traditional DBMS. Under this prototype, the thesis proposes the algorithms for online query processing, from checking bounded evaluability to generating bounded query plans. Moreover, the thesis extends bounded evaluation to RAaggr (RA with aggregation) queries under bag semantics to make the prototype more practical in real-life circumstances. Thirdly, the thesis presents another prototype, named Zidian, based on KV stores to speed up SQL query evaluation over NoSQL. As the foundation, the thesis proposes a block-as-a-value data (BaaV) model and its corresponding relational algebra on this prototype. Beyond the bounded evaluation, the thesis studies scan-free data access. Also, the thesis studies the query evaluation process, which verified that Zidian substantially reduces data access and communication cost. Moreover, Zidian could be plugged into existing SQL-over-NoSQL systems while retaining horizontal scalability. Finally, to make the framework more practical, the thesis studies the problem of schema discovery for BESS. In the form of a schema selection problem for the BaaV model, the thesis presents a full treatment to generate schema for parametric SQL queries over keyed blocks on KV stores. The thesis develops and verifies the framework and criteria for the schema selection problem, considering both storage and computation. Meanwhile, the thesis presents practical algorithms for selection that guarantees certain optimality under practical conditions.
title: Das wichtigste Thema des Chemieunterrichts aus Sicht von SchülerInnen der Sek. 2
Creators: name: Kofler, Christoph
Year: 2023

description: „Warum müssen wir das überhaupt lernen?“ ist ein Satz, den jeder Lehrer und jede Lehrerin mehrmals zu hören bekommt. Mit dieser Arbeit soll ein erster Schritt getätigt werden, um zu ergründen, warum es manche Themen gibt die den SchülerInnen als wichtiger erscheinen als andere. Aufbauend auf Forschungsarbeiten bezüglich der Motivation Chemie zu lernen, wird näher erforscht, aus welchen Gründen ein Thema für SchülerInnen wichtig ist. Mit Einbeziehung gängiger Motivations- und Interessenspsychologie werden in einer Umfrage und mit Interviews der Lehrpersonen vier Variablen, die zur Themenwahl beigetragen haben, überprüft. Es konnten somit einige Themenbereiche identifiziert werden die den SchülerInnen als besonders wichtig erscheinen. Die Gemeinsamkeiten dieser Bereiche besteht darin, dass basischemische Konzepte, wie das Donor-Akzeptor-Konzept, eine zentrale Rolle spielen. Indizien dafür, dass die Lehrperson eine Rolle dabei spielt, sind ebenfalls vorhanden. Implikationen daraus sind unter anderem, dass der Lehrplan in seiner jetzigen Form eine durchaus gute Struktur liefert, jedoch durch die offene Form den Einfluss der Lehrperson noch weiter verstärkt. Für den Unterricht selbst ergibt sich, dass chemische Basiskonzepte gegenüber Faktenwissen vorgezogen werden sollten.
description: „Why do we have to learn this?” is a question many teachers have heard before. In this thesis first steps were taken to shed light on the fact that this question is asked more often when it comes to certain topics. This paper is based on research regarding the motivation to learn chemistry and widely accepted psychological theories on motivation and interest. In a survey, students were asked to name the most important topic in chemistry, as well as their motivation behind that choice. In addition, interviews with the teachers of those students were conducted. The motivation behind the students’ choices was quantified in four variables, which were later tested in a survey with students. This method leads to a few topics which are seen as more important than others. The common thread between these topics is that they are essential for understanding basic concepts in chemistry, like the donor acceptor concept of acid-base reactions. A strong influence from the teachers is also indicated. This shows that the Austrian curriculum for chemistry in the upper secondary level is validated in its current form, though it is important to note that the loose structure of this curriculum furthers the teachers’ influence. The results also imply that a stronger focus should be set on teaching conceptual instead of factual knowledge.
Visions of a new land: government recruitment of Norwegian immigrants to Alberta 1870-1930
Creators: name: Karhoffer, Wendy Lee
Publisher: name: University of Calgary
Year: 1991
Subjects: subject: FC 3700 S2 K37 1991
subject: Norwegians - Alberta
subject: Alberta - Emigration and immigration - Government policy
subject: Immigrants - Alberta

description: Bibliography: p. 136-146.
A greener tetraphenylporphyrin synthesis and metallation: an undergraduate teaching experiment
Creators: name: Nitka, Matthew A.
name: Zerbee, Katarina E.
name: Dee, Julianne M.
name: Cranswick, Matthew A.
name: Zovinka, Edward P.
name: De Backere, John R.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology

description: While porphyrin-related syntheses have become classic experiments in the undergraduate curriculum, traditional syntheses of the free-base meso-tetraphenylporphyrin (H2TPP) and its metallated derivatives can be energy-intensive, use hazardous solvents, and generate appreciable amounts of waste. In an attempt to make the synthesis of H2TPP and its metallated derivatives (MTPP where M = metal) better aligned with the principles of green chemistry, we optimized a microwave-assisted, microscale synthesis of H2TPP and alternative routes toward the metallation of H2TPP including solvent-substituted reflux and mechanochemical syntheses for the undergraduate teaching laboratory. The greenness of these syntheses were evaluated using various green metrics and qualitative comparison to previously reported syntheses.
Baroclinic stationary waves in aquaplanet models
Creators: name: Zappa, Giuseppe
name: Lucarini, Valerio
name: Navarra, Antonio
Publisher: name: arXiv
Year: 2011
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: An aquaplanet model is used to study the nature of the highly persistent low frequency waves that have been observed in models forced by zonally symmetric boundary conditions. Using the Hayashi spectral analysis of the extratropical waves, we find that a quasi-stationary (QS) wave five belongs to a wave packet obeying a well defined dispersion relation with eastward group velocity. The components of the dispersion relation with k>5 baroclinically convert eddy available potential energy into eddy kinetic energy, while those with k<5 are baroclinically neutral. In agreement with the Green's model of baroclinic instability, the wave five is weakly unstable, and the inverse energy cascade, which had been previously proposed as a main forcing for this type of waves, only acts as a positive feedback on its predominantly baroclinic energetics. The QS wave is reinforced by a phase lock to an analogous pattern in the tropical convection, which provides further amplification to the wave. We also find that the Pedlosky bounds on the phase speed of unstable waves provide guidance in explaining the latitudinal structure of the energy conversion, which is shown to be more enhanced where the zonal westerly surface wind is weaker. The wave energy is then trapped in the wave guide created by the upper tropospheric jet stream. In agreement with Green's theory, as the equator to pole SST difference is reduced the stationary marginally stable component shifts toward higher wavenumbers, while the wave five becomes neutral and westward propagating. Some properties of the aquaplanet QS waves are found in interesting agreement with a low frequency wave observed by Salby (1982) in the southern hemisphere DJF, so that this perspective on low frequency variability might be, apart from its value in terms of basic geophysical fluid dynamics, of specific interest for studying the Earth's atmosphere.
Straightforward sustainable synthesis of novel non-endocrine disruptive bio-based organic UV-B filters with antimicrobial activity
Creators: name: Mention, Matthieu M.
name: Peyrot, Cédric
name: Godon, Blandine
name: Alarcan, Jimmy
name: Brunissen, Fanny
name: Grimaldi, Marina
name: Balaguer, Patrick
name: Braeuning, Albert
name: Allais, Florent
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified

description: With an increasing demand for safe and natural products from both industries and consumers, paired with the recent ban of decried molecules (i.e. octinoxate, avobenzone or octocrylene) due to their high negative impact on humans and the environment (i.e. endocrine disruption, coral bleaching), safe bio-based alternatives are a necessary and promising surrogate to substitute current commercialized petroleum-based UV filters. In this context, a class of bio-based molecules, displaying interesting UV-B filtering properties and great photostability were developed from furfural and 5-hydroxymethylfurfural (HMF), using the Knoevenagel condensation with a set of green conditions to minimize the impact on environment. Furthermore, those furfural- and HMF-based molecules demonstrated antimicrobial properties as secondary activity, highly sought by industries. Some furan derivatives being recognized to exhibit toxicological risks, in silico and in vitro assays were conducted and demonstrated the absence of endocrine disruption activity for these new molecules.
Exploring the effects of high-velocity flows in abundance determinations in H II regions. Bidimensional spectroscopy of HH 204 in the Orion Nebula
Creators: name: Núñez-Díaz, M.
name: Mesa-Delgado, A.
name: Esteban, C.
name: López-Martín, L.
name: García-Rojas, J.
name: Luridiana, V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present results from integral field optical spectroscopy with the Potsdam Multi-Aperture Spectrograph of the Herbig-Haro (HH) object HH 204, with a spatial sampling of 1 x 1 arcsec^2. We have obtained maps of different emission lines, physical conditions and ionic abundances from collisionally excited lines. The ionization structure of the object indicates that the head of the bow shock is optically thick and has developed a trapped ionization front. The density at the head is at least five times larger than in the background ionized gas. We discover a narrow arc of high T_e([N II]) values delineating the southeast edge of the head. The temperature in this zone is about 1,000 K higher than in the rest of the field and should correspond to a shock-heated zone at the leading working surface of the gas flow. This is the first time this kind of feature is observed in a photoionized HH object. We find that the O^+ and O abundance maps show anomalous values at separate areas of the bow shock probably due to: a) overestimation of the collisional de-excitation effects of the [O II] lines in the compressed gas at the head of the bow shock, and b) the use of a too high T_e([N II]) at the area of the leading working surface of the flow.
description: 12 pages, 7 Postscript figures, accepted for publication in MNRAS
Urban hydrology: technical, social, economic and environmental aspects of stormwater runoff regime in the city of Calgary between 1979 and 1990
Creators: name: Kendrick, Kathleen Joanne
Publisher: name: University of Calgary
Year: 1991
Subjects: subject: TD 665 K46 1991
subject: Urban hydrology - Alberta - Calgary
subject: Storm sewers - Alberta - Calgary

description: Bibliography: p. 148-156.
Ab initio chemical kinetics of Isopropyl acetate oxidation with OH radicals
Creators: name: Abdel-Rahman, Mohamed A.
name: Shibl, Mohamed F.
name: Shiroudi, Abolfazl
name: Mahmoud, Mohamed A. M.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biophysics
Biochemistry
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Science Policy

description: Global reactivity descriptors of isopropyl acetate (IPA) and thermo-kinetic aspects of its oxidation via OH radicals have been studied. Transition state theory (TST) was utilized to estimate the bimolecular rate constants. Ten oxidation pathways have been investigated, and all of them are exothermic. The potential energy diagram has been sketched using different pre- and post-reactive complexes for all reaction pathways. Rate coefficient calculations were obtained directly by connecting the separated reactants with different transition states. The results indicate that the reaction of IPA with OH radicals occurs in the ground state rather than the excited state, and the rate constants obtained directly and from the effective approach are the same, which confirmed the accuracy of the estimated pre-reactive complexes and the reaction mechanism. Rate constants and branching ratios show that hydrogen atom abstraction from the iso C − H (C2 atom) bond is the most kinetically preferable route up to 1000 K, while at higher temperatures, H-atom abstraction from the out-of-plane CH3 group (C3 atom) became the most dominant route with high competition with that of the in-plane CH3 group (C4 atom).
Flow visualiztion from On the identification of hypoxic regions in subject-specific cerebral vasculature by combined CFD/MRI
Creators: name: Perinajová, Romana
name: van Ooij, Pim
name: Kenjereš, Saša
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering
subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering
subject: 80110 Simulation and Modelling
subject: FOS: Computer and information sciences

description: The time-dependent blood-flow patterns based on the pathlines visualization colored by velocity magnitude. A zoom-in of the bifurcation regions is provided too.
Coexistence of Even- and Odd-Frequency Superconductivities Under Broken Time-Reversal Symmetry
Creators: name: Matsumoto, Masashige
name: Koga, Mikito
name: Kusunose, Hiroaki
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A novel superconducting state under the broken time-reversal symmetry is studied in conventional phonon-mediated superconductors. By solving the Eliashberg equation self-consistently with the mass renormalization effect, it is found that the even- and odd-frequency components of the order parameter coexist in the bulk system as a consequence of the broken time-reversal symmetry. This finding would direct more attention to the odd-frequency pairing that affects physical quantities, especially in strong coupling superconductors.
description: 5 pages, 4 figures