cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hydrophobic hydration driven self-assembly of Curcumin in water: Similarities to nucleation and growth under large metastability, and an analysis of water dynamics at heterogeneous surfaces
Creators: name: Hazra, Milan Kumar
name: Roy, Susmita
name: Bagchi, Biman
Publisher: name: arXiv
Year: 2014
Subjects: subject: Biomolecules (q-bio.BM)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: As the beneficial effects of curcumin have often been reported to be limited to its small concentrations, we have undertaken a study to find the aggregation properties of curcumin in water by varying the number of monomers. Our molecular dynamics simulation results show that the equilibrated structure is always an aggregated state with remarkable structural rearrangements as we vary the number of curcumin monomers from 4 to 16 monomers. We find that curcumin monomers form clusters in a very definite pattern where they tend to aggregate both in parallel and anti-parallel orientation of the phenyl rings, often seen in the formation of beta-sheet in proteins. A considerable enhancement in the population of parallel alignments is observed with increasing the system size from 12 to 16 curcumin monomers. Due to the prevalence of such parallel alignment for large system size, a more closely packed cluster is formed with maximum number of hydrophobic contacts. We also follow the pathway of cluster growth, in particular the transition from the initial segregated to the final aggregated state. We find the existence of a metastable structural intermediate involving a number of intermediate-sized clusters dispersed in the solution. The course of aggregation bears similarity to nucleation and growth in highly metastable state. The final aggregated form remains stable with total exclusion of water from its sequestered hydrophobic core. We also investigate water structure near the cluster surface along with their orientation. We find that water molecules form a distorted tetrahedral geometry in the 1st solvation layer of the cluster, interacting strongly with hydrophilic groups at the surface of curcumin. The dynamics of such quasi-bound water molecules near the surface of curcumin cluster is considerably slower than the bulk signifying a restricted motion as often found in protein hydration layer.
description: 31 pages, 9 figures
title: Sieg der „Koalition der Willigen“ im Dritten Golfkrieg 2003 / Karte: Bernd Nogli ; Text: Christian Jentzsch
Creators: name: Jentzsch, Christian
Publisher: name: ZMSBw
Year: 2023

description: Die aktuelle Karte : historische Ereignisse in Kartenansicht / Zentrum für Militärgeschichte und Sozialwissenschaften der Bundeswehr; [16]
Photo-induced reactions from efficient molecular dynamics with electronic transitions using the FIREBALL local-orbital density functional theory formalism
Creators: name: Zobač, Vladmír
name: Lewis, James P.
name: Abad, Enrique
name: Mendieta-Moreno, Jesús I.
name: Hapala, Prokop
name: Jelínek, Pavel
name: Ortega, José
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The computational simulation of photo-induced processes in large molecular systems is a very challenging problem. Here, we present a detailed description of our implementation of a molecular dynamics with electronic transitions algorithm within the local-orbital density functional theory code Fireball, suitable for the computational study of these problems. Our methodology enables simulating photo-induced reaction mechanisms over hundreds of trajectories; therefore, large statistically significant ensembles can be calculated to accurately represent a reaction profile. As an example of the application of this approach, we report results on the [2+2] cycloaddition of ethylene with maleic anhydride and on the [2+2] photo-induced polymerization reaction of two C60 molecules. We identify different deactivation channels of the initial electron excitation, depending on the time of the electronic transition from LUMO to HOMO, and the character of the HOMO after the transition.
Kitchen and Mess Hall Building 21, Blueprint, Camp Bullis, Texas
Creators: name: Brin, Adam
Publisher: name: Works Progress Administration
Year: 1939
Subjects: subject: Camp Bullis
valueUri: https://core.tdar.org/browse/geographic-keyword/82533/camp-bullis
subject: Texas
valueUri: https://core.tdar.org/browse/geographic-keyword/6923/texas
subject: Historic
valueUri: https://core.tdar.org/browse/culture-keyword/25/historic
subject: Military Structure
valueUri: https://core.tdar.org/browse/site-type/322/military-structure
subject: Camp Bullis Building 21
valueUri: https://core.tdar.org/browse/other-keyword/153725/camp-bullis-building-21
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
subject: Heritage Management
valueUri: https://core.tdar.org/browse/investigation-type/24/heritage-management

description: This set of drawings from August 14th, 1939 document the floor plans of the kitchen and mess hall at Camp Bullis, Texas, building 21. The blueprint also includes a schedule of openings and an electrical legend. The sponsor for this blueprint is the Office of the Post Quartermaster at Fort Sam Houston, Texas under the supervision of Arthur S. Graham. The blueprint was originally drawn by “H.R.J”, checked by “J.L.B.” and reviewed by J.B. Clearwater.
title: Cooperating with the Czechs, driving the State : German activist policies through biographical trajectories and administrative records (1918-1938) (LIEPP Working Paper, n°108)
Creators: name: Lenormand, Paul
name: Rovny, Jan
Publisher: name: Sciences Po - LIEPP
Year: 2020
Subjects: subject: FOS: Social sciences
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description: Czechoslovakia, a newborn state in 1918, immediately faced interethnic conflict, threatening its survival. In other multinational places of interwar Central Europe, democracy rapidly collapsed, and most ethnic minorities became entrenched into a systemic opposition to the dominant nationality of their state. How could the Czechoslovak leaders of all nationalities overcome this state of tension and mistrust? How would leaders shape their preferences and strategies be shaped? Would cooperation prove to be a better option than systematic rejection of a common polity? To what extent did the imperial experience of interethnic cooperation survive the war and remain a useful frame for at least some part of the political leadership? This paper studies how and why interethnic cooperation was successful. It pursues two directions. First, it considers how biographies and individual trajectories of leaders inform us about the strategies adopted vis-à-vis the minority issue. Then, it assesses how documents from the relevant ministries controlled by German-speaking ministers help decipher public policy choices and reassess the importance of the "national question" in the everyday routine of these institutions.
The strong Kervaire invariant problem in dimension 62
Creators: name: Xu, Zhouli
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Topology (math.AT)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: Using a Toda bracket computation $\langle θ_4, 2, σ^2\rangle$ due to Daniel C. Isaksen [11], we investigate the $45$-stem more thoroughly. We prove that $θ_4^2=0$ using a $4$-fold Toda bracket. By [2], this implies that $θ_5$ exists and there exists a $θ_5$ such that $2θ_5=0$. Based on $θ_4^2=0$, we simplify significantly the $9$-cell complex construction in [1] to a $4$-cell complex, which leads to another proof that $θ_5$ exists.
description: 11 pages
title: Interventions to foster academic aspirations adjustment among disadvantaged and female students - A PRISMA systematic review of literature (LIEPP Working Paper, n°114)
Creators: name: Carbuccia, Laudine
Publisher: name: Sciences Po - LIEPP
Year: 2020
Subjects: subject: FOS: Social sciences
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description: Occupational aspirations significantly contribute to educational inequalities according to family background and gender. Little is known, from a policy perspective, about the impact of educational interventions aimed to foster aspirations among low-SES students and female students. We attempt to fill this gap through a PRISMA systematic review of interventions assessed using counterfactual designs. A total of 11 articles encompassing 13 interventions, published between 2003 and 2020, are included in the study. Hence, only a limited number of impact assessment studies have been carried out so far, and these are mostly concentrated in the US and track only short-term impacts. These studies are classified according to the kind of levers they use: role modeling; encouragement (emotional support); practice (meeting with professionals of a given field); learning component and/or information. The review describes how each intervention combines multiple levers. A majority of these studies reported either null effects or even negative effects on the aspirations of disadvantaged students, especially among low-achieving ones. We identify two main reasons for these discouraging results. First, most of these interventions concerned high school students who had been often already formally or informally tracked. It may be important to start earlier to intervene on the aspirations and skill development processes of disadvantaged pupils. Second, most of these interventions targeting disadvantaged students rely on role models, while our results suggest that role models may be double-edged. If they appear to be effective in increasing girls' STEM aspirations, particularly when they emphasize a positive image of science careers, role models may end up discouraging low-performing or disadvantaged students, if they are perceived as too far from the students' situation, and therefore out of reach. However, some interventions do yield encouraging results for the latter population and we discuss which characteristics may have contributed to their positive impacts.
Prediction of Horizontal In-situ Stress in Shale Gas Reservoirs Based on Artificial Neural Networks and Conventional Rock Mechanics ——A Case Study on Longmaxi Formation in Southern Sichuan (China)
Creators: Du, Yifan
Publisher: name: University of Alberta Library
Year: 2022

Shale gas is one of the most important unconventional fossil fuel resources. It is usually developed by horizontal drilling and hydraulic fracturing techniques. The in-situ stress magnitude distribution in a given shale gas field is a significant factor that should be considered by horizontal drilling and hydraulic fracturing. However, the accurate determination of in-situ stresses is normally hindered by the lack of experimental data. Aiming to address this issue, this thesis proposes a method of combining artificial intelligence and conventional rock mechanics to predict the in-situ stress magnitudes in a given shale gas reservoir based on the logging data. Since the experimental in-situ stress data are not sufficiently large to serve as the training dataset, this thesis selects the data in two wells for which the calculated in-situ stress magnitudes are in good agreement with the measured in-situ stress magnitudes as the training samples. Empirical rock-mechanics equations are used to generate more training data based on the data collected from these two wells. Then, a 4-layer artificial neural network model is established to predict the magnitudes of horizontal in-situ stresses in other wells. The results show that the predicted maximum horizontal in-situ stress magnitudes and predicted minimum horizontal in-situ stress magnitudes agree well with the measured data. Finally, a series of 3D maps showing the horizontal in-situ stress distributions in one shale gas reservoir in the Longmaxi formation of Sichuan (China) have been plotted by the newly developed neural network model.
Les politiques publiques permettent-elles de concilier performances économiques et performances environnementales des exploitations agricoles ?
Creators: name: Diop, Thierno Bocar
name: Diop, Thierno Bocar
Publisher: name: Unknown
Year: 2022
Subjects: Agricultural and Food Policy
Environmental Economics and Policy

description: L’agriculture actuelle fait face à des enjeux majeurs, dont celui d’assurer de manière durable un approvisionnement alimentaire à une population mondiale en forte croissance. Face à cet enjeu, une amélioration de la productivité agricole en veillant à préserver l’intégrité de l’environnement est nécessaire. Elle passe par une évolution vers des pratiques plus économes en intrants (énergie, produits phytosanitaires, engrais) et cela sans compromettre la rentabilité économique des exploitations. Afin de faciliter la transition vers ces pratiques agroécologiques, les pouvoirs publics européens ont mis en place des dispositifs d’aides versés sous la forme de paiements pour services environnementaux et introduit des mécanismes de régulation. Nos recherches visent à évaluer les effets de ces politiques agro-environnementales sur les performances économiques et environnementales des exploitations agricoles.
D4.2 Report on EU policy space in light of international framework
Creators: name: van Eechoud, Mireille
name: van Es, Romy
Publisher: name: Zenodo
Year: 2021
Subjects: copyright
EU

description: As part of the reCreating Europe project, one strand of work focuses on how the territorial nature of copyright and related rights can hinder the realisation of the digital single market. The EU’s primary interest in regulating intellectual property lies in furthering the establishment and functioning of the internal market. The international framework of treaties to a large degree shapes the actual space the EU and its Member States have to legislate copyright and neighbouring rights. The objective of this paper is to analyze the space that the international system allows the EU to take measures overcoming territoriality problems. In order to do that, we first recapitulate what those current mechanisms are. In chapter 2 we describe the position of the EU and its Member States in the field of international intellectual property, and the key features of the main treaties. For a better understanding of the landscape, in chapter 3 we map the most important grounds of competence of the EU relevant to copyright and neighbouring rights. Chapter 4 analyzes the current ‘anti-territoriality’ mechanisms identified in Deliverable 4.1 against the background of the international treaties. The concluding Chapter 5 summarizes the findings and elaborates issues to consider should the EU proceed with more far-reaching measures. This work ultimately feeds into the third stage of Recreating Europe’s work package 4 on territoriality. Please note: a screen-reader accessible version of this report can be downloaded via this link https://docs.google.com/uc?export=download&id=1PUbyqIrIinUC2YAO3T6p_-9IFtOE6cdH
Memorandum of Agreement Submitted to the Advisory Council on Historic Preservation, Concerning the Construction of a Community Center, Fort Sam Houston, Texas
Creators: name: Department Of The Army
Publisher: name: Fort Sam Houston
Year: 1993
Subjects: subject: JBSA-Sam Houston
valueUri: https://core.tdar.org/browse/geographic-keyword/82532/jbsa-sam-houston
subject: San Antonio
valueUri: https://core.tdar.org/browse/geographic-keyword/4149/san-antonio
subject: Bexar (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/4150/bexar-county
subject: Texas
valueUri: https://core.tdar.org/browse/geographic-keyword/6923/texas
subject: Non-Domestic Structures
valueUri: https://core.tdar.org/browse/site-type/309/non-domestic-structures
subject: Communal / Public Structure
valueUri: https://core.tdar.org/browse/site-type/314/communal-public-structure
subject: Building 372
valueUri: https://core.tdar.org/browse/other-keyword/146369/building-372
subject: Building 371
valueUri: https://core.tdar.org/browse/other-keyword/150049/building-371
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
subject: Heritage Management
valueUri: https://core.tdar.org/browse/investigation-type/24/heritage-management

description: A signed agreement stating that the Department of the Army has determined that the construction of a Community Center, including a PX Expansion, construction of a Chicken Loft fast food restaurant, and relocation of administrative offices at Fort Sam Houston will have an effect upon the National Register Conservation District, Building 371, and Building 372 eligible for inclusion in the National Register of Historic Places, and has consulted with the Texas State Historic Preservation Officer pursuant to 36 CFR Part 800, regulations implementing Section 106 of the National Historic Preservation Act (16 U.S.C.. 470 h-2(f).
Differential algebra of biquaternions. 4. Twistor and twistors fields
Creators: name: Alexeyeva, L. A
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: MSQ 46S10, 53C80

description: On base of differential biquaternions algebra and generalized functions theory the biquaternionic wave equation is considered under vector representation of its structural coefficient. Its generalized solutions are constructed, which describe nonstationary, time-harmonic and static twistors. Elementary harmohic twistors are determined, their biquaternions of energy-inpulse are calculated. By use of them polorized and unpolarized twistors field have been constructed.
description: 12 pages in Russian
Multivariate Reservoir Property Modeling with Hierarchical Truncated Pluri-Gaussian and Projection Pursuit Multivariate Transformation Techniques
Creators: Sunday, Chuks A
Publisher: name: University of Alberta Library
Year: 2022

To characterize a petroleum reservoir and to develop a reliable static and dynamic model for assessing resources and reserves, the rock and fluid properties of the subsurface formation are modeled. In most cases, multiple reservoir properties (categorical and continuous variables) are jointly utilized to represent rock properties. Standard practice is to model and characterize the categorical properties of the reservoir such as facies, before modeling the continuous petrophysical properties.

A framework that applies the Hierarchical Truncated Pluri Gaussian (HTPG) and Projection Pursuit Multivariate Transformation (PPMT) techniques for multivariate modeling of rock properties in a petroleum reservoir is developed and documented in this thesis. The HTPG technique and PPMT workflow are established methods for modeling categorical and continuous variables, respectively. Unlike other truncated simulation techniques such as Truncated Gaussian Simulation (TGS) and Truncated Pluri Gaussian Simulation (TPGS), HTPG can be applied to a complex geological domain and does not limit the number of latent Gaussian variables that are used. Although the traditional modeling workflow for multivariate continuous property modeling reproduces important univariate statistics, it does not reproduce the complexity in the multivariate data, and this leads to models that do not reproduce important characteristics of the reservoir. To overcome this limitation and for ease in the geostatistical modeling workflow, the PPMT workflow is implemented. The PPMT decorrelates the multivariate variable and transforms them into univariate Gaussian variables that can be modeled independently.

This proposed integrated modeling method is implemented on the Hekla Reservoir. The HTPG simulation technique is applied to model the five facies in the Hekla reservoir to generate one hundred simulated realizations of the facies, while the PPMT technique is subsequently applied to model the continuous petrophysical properties (porosity and permeability) distributed in the reservoir. This framework is reproducible and applicable to both mining and petroleum projects, which often require multiple categorical and continuous variables of geologic deposits or reservoirs.
Response from Stan Graves to Richard Strimel, New Commissary 50 Percent Design Submittal D32, Fort Sam Houston, Texas
Creators: name: Graves, Stanley O.
Publisher: name: Texas Historical Commission
Year: 1992
Subjects: subject: JBSA-Sam Houston
valueUri: https://core.tdar.org/browse/geographic-keyword/82532/jbsa-sam-houston
subject: San Antonio
valueUri: https://core.tdar.org/browse/geographic-keyword/4149/san-antonio
subject: Bexar (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/4150/bexar-county
subject: Texas
valueUri: https://core.tdar.org/browse/geographic-keyword/6923/texas
subject: Governmental Structure
valueUri: https://core.tdar.org/browse/site-type/318/governmental-structure
subject: Non-Domestic Structures
valueUri: https://core.tdar.org/browse/site-type/309/non-domestic-structures
subject: Patch Chaffee Residential Area
valueUri: https://core.tdar.org/browse/other-keyword/156813/patch-chaffee-residential-area
subject: Commissary
valueUri: https://core.tdar.org/browse/other-keyword/31923/commissary
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
subject: Heritage Management
valueUri: https://core.tdar.org/browse/investigation-type/24/heritage-management

description: The Environmental and Natural Resources Office at Fort Sam Houston forwarded to the Texas Historical Commission design drawings for a new commissary - this was 50% Design submittal (D32). This letter is the Commission's feedback on the design. Carbon copied is Mike Hilger (Base Historical Architect) and Al Smith (DeCA).
Feather keratin derived sorbents for the removal of trace metals from wastewater produced by energy generation processes
Creators: Zahara, Irum
Publisher: name: University of Alberta Library
Year: 2022

Water dependency of energy generation systems generate polluted water. Efforts are required to purify energy-related wastewaters. Here in, eight keratin-based sorbents (KBPs) from chicken feathers were developed, characterized for their physicochemical properties, and then tested against nine trace metals (at 100 μg L−1 each) from multi-metal synthetic water simulating wastewater from energy industry. Among the eight biopolymers, KBP-I removed 87–93% of AsIII, Cd2+, KBP-IV adsorbed 80–91% of Cu2+, VV, CrVI, and KBP-V removed 60–90% of Co2+, Ni2+, Zn2+. Based on these initial results, adsorption performances of KBP-I, KBP-IV and KBP-V were further evaluated under a range of environmental factors (pH, temperature, contact time). At last, the hybrid sorbent (KBP-IX) was developed by mixing the KBP-IV and KBP-V at various ratios to analyze their synergistic affect for targeting higher removal efficiencies.
Poincare Series, 3D Gravity and CFT Spectroscopy
Creators: name: Keller, Christoph A.
name: Maloney, Alexander
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Modular invariance strongly constrains the spectrum of states of two dimensional conformal field theories. By summing over the images of the modular group, we construct candidate CFT partition functions that are modular invariant and have positive spectrum. This allows us to efficiently extract the constraints on the CFT spectrum imposed by modular invariance, giving information on the spectrum that goes beyond the Cardy growth of the asymptotic density of states. Some of the candidate modular invariant partition functions we construct have gaps of size (c-1)/12, proving that gaps of this size and smaller are consistent with modular invariance. We also revisit the partition function of pure Einstein gravity in AdS3 obtained by summing over geometries, which has a spectrum with two unphysical features: it is continuous, and the density of states is not positive definite. We show that both of these can be resolved by adding corrections to the spectrum which are subleading in the semi-classical (large central charge) limit.
description: 36 pages, 2 figures
The modulated X-ray emission of the magnetic O8.5V-star Tr16-22
Creators: name: Naze, Yael
name: Wade, Gregg
name: Petit, Veronique
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Using an extensive X-ray dataset, we analyze the X-ray emission of the massive O-star Tr16-22, which was recently found to be magnetic. Its bright X-ray emission is found to be modulated with a ~54d period. This timescale should represent the rotational timescale of the star, as for other magnetic massive stars. In parallel, new spectropolarimetric data confirm the published magnetic detection.
description: accepted for publication in A&A
Adoção e Seleção/Tradução
Creators: name: Cesar Coimbra, Jose
Publisher: name: Zenodo
Year: 2024
Subjects: adoption

description: Brunin, Jean-Pierre. “Adoption et Sélection”. L ́enfant et la famille, Paris, n.5, sep. 1992, pp. 63-5. Tradução: José César Coimbra [Atualizada em julho/2016].
Preservation Brief 20, The Preservation of Historic Barns
Creators: name: Auer, Michael J.
Publisher: name: Technical Preservation Services, National Park Service
Year: 2004
Subjects: subject: Historic
valueUri: https://core.tdar.org/browse/culture-keyword/25/historic
subject: Conservation
valueUri: https://core.tdar.org/browse/other-keyword/1819/conservation
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
subject: Methodology, Theory, or Synthesis
valueUri: https://core.tdar.org/browse/investigation-type/6/methodology-theory-or-synthesis
subject: Heritage Management
valueUri: https://core.tdar.org/browse/investigation-type/24/heritage-management
subject: Site Stabilization
valueUri: https://core.tdar.org/browse/investigation-type/11/site-stabilization

description: This is number twenty of 42 preservation briefs prepared by the Technical Preservation Services of the National Park Service. This brief focuses on the preservation of historic barns. Historic barns form a vital part of our Nation's heritage. Not every historic barn can be saved from encroaching development, or easily brought back into productive use. Yet thousands of such structures can be repaired or rehabilitated for continued agricultural use or for new functions without destroying the very qualities that make them worth saving. By carefully examining the historic significance of each structure, owners of historic barns can draw up plans that preserve and reuse these historic structures while maintaining their historic character.
Proper Motions of Young Stellar Outflows in the Mid-Infrared with Spitzer. II. HH 377/Cep E
Creators: name: Noriega-Crespo, A.
name: Raga, A. C.
name: Moro-Martin, A.
name: Flagey, N.
name: Carey, S. J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have used multiple mid-infrared observations at 4.5 micron obtained with the Infrared Array Camera, of the compact (~1.4 arcmin) young stellar bipolar outflow Cep E to measure the proper motion of its brightest condensations. The images span a period of ~6 yr and have been reprocessed to achieve a higher angular resolution (~0.8 arcsec) than their normal beam (2 arcsec). We found that for a distance of 730 pc, the tangential velocities of the North and South outflow lobes are 62+/-29 and 94+/-6 km/s respectively, and moving away from the central source roughly along the major axis of the flow. A simple 3D hydrodynamical simulation of the H2 gas in a precessing outflow supports this idea. Observations and model confirm that the molecular Hydrogen gas, traced by the pure rotational transitions, moves at highly supersonic velocities without being dissociated. This suggests either a very efficient mechanism to reform H2 molecules along these shocks or the presence of some other mechanism (e.g. strong magnetic field) that shields the H2 gas.
description: Accepted for publication in New Journal of Physics (Special Issue article)
Bughunting on a Budget: Exploring Quality Assurance Practices and Tools for Indie Game Developers
Creators: Cho, Jaehyung
Publisher: name: University of Alberta Library
Year: 2022

The games industry is growing worldwide, eclipsing the global film industry as a premier entertainment solution. The development of a commercial game is a complex, lengthy, and costly process, and increasing amounts of resources are required to build a successful game as technology improves. To this end, quality assurance (QA) is critical for producing high-quality games that are fun and reasonably defect-free. Existing work in QA for games describes game development methodologies and testing approaches, goals, and automation, but do not address the disparate contexts of independent (indie) and non-indie game development. Indie developers have limited access to funding and resources compared to their non- indie counterparts, which makes achieving a similar quality of QA difficult. Yet, indie games make up the lion’s share of newly released games each year. Therefore, we want to empower indie developers by maximizing their QA opportunities within their resource constraints.

In this study, we survey 19 game developers who have experience with commercially released games to learn about their QA experiences and perspectives based on 22 of their released game projects. We compare responses about indie and non-indie projects regarding test performance, planning, goals, automation, tools, results, and resources to find key differences in practices, goals, and needs between them. We present our findings on the major differences in game testing and automation between indies and non-indies, including indies having less clear goals and plans for testing, performing tests on a conditional basis over a regular testing schedule, and having subjective test results which are open to interpretation. We also discuss issues of culture and management that respondents raise in their open-ended answers. Based on our findings, we present recommendations for each area of testing to improve quality assurance practices for resource-constrained game developers.
First direct measurements of transverse waves in solar polar plumes using SDO/AIA
Creators: name: Thurgood, J. O.
name: Morton, R. J
name: McLaughlin, J. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: There is intense interest in determining the precise contribution of Alfvénic waves propagating along solar structures to the problems of coronal heating and solar wind acceleration. Since the launch of SDO/AIA, it has been possible to resolve transverse oscillations in off-limb solar polar plumes and recently McIntosh et al. (2011, Nature, 475, 477) concluded that such waves are energetic enough to play a role in heating the corona and accelerating the fast solar wind. However, this result is based on comparisons to Monte Carlo simulations and confirmation via direct measurements is still outstanding. Thus, this letter reports on the first direct measurements of transverse wave motions in solar polar plumes. Over a 4 hour period, we measure the transverse displacements, periods and velocity amplitudes of 596 distinct oscillations observed in the 171 Åchannel of SDO/AIA. We find a broad range of non-uniformly distributed parameter values which are well described by log-normal distributions with peaks at $234$ km, $121$ s and $8$ km s$^{-1}$, and mean and standard deviations of $407\pm297$ km, $173\pm118$ s and $14\pm10$ km s$^{-1}$. Within standard deviations, our direct measurements are broadly consistent with previous results. However, accounting for the whole of our observed non-uniform parameter distribution we calculate an energy flux of $9-24$ W m$^{-2}$, which is $4-10$ times below the energy requirement for solar wind acceleration. Hence, our results indicate that transverse MHD waves as resolved by SDO/AIA cannot be the dominant energy source for fast solar wind acceleration in the open-field corona.
description: 16 pages, 4 figures, 1 table
OAHP Inventory, Building 941 Temporary World War II Structure, Fort Sam Houston, Texas
Creators: name: Walter, Chelsea
Publisher: name: Office of Archaeology and Historic Preservation
Year: 1980
Subjects: subject: Fort Sam Houston
valueUri: https://core.tdar.org/browse/geographic-keyword/83681/fort-sam-houston
subject: San Antonio
valueUri: https://core.tdar.org/browse/geographic-keyword/4149/san-antonio
subject: Bexar (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/4150/bexar-county
subject: Texas
valueUri: https://core.tdar.org/browse/geographic-keyword/6923/texas
subject: Historic
valueUri: https://core.tdar.org/browse/culture-keyword/25/historic
subject: Governmental Structure
valueUri: https://core.tdar.org/browse/site-type/318/governmental-structure
subject: Historic Governmental Structure
valueUri: https://core.tdar.org/browse/site-type/320/historic-governmental-structure
subject: Non-Domestic Structures
valueUri: https://core.tdar.org/browse/site-type/309/non-domestic-structures
subject: Building 941
valueUri: https://core.tdar.org/browse/other-keyword/146493/building-941
subject: OAHP
valueUri: https://core.tdar.org/browse/other-keyword/138292/oahp
subject: Temporary World War II Structure
valueUri: https://core.tdar.org/browse/other-keyword/159067/temporary-world-war-ii-structure
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
subject: Architectural Survey
valueUri: https://core.tdar.org/browse/investigation-type/2/architectural-survey
subject: Heritage Management
valueUri: https://core.tdar.org/browse/investigation-type/24/heritage-management

description: An inventory form by the Office of Archaeology and Historic Preservation for Building 941 at Fort Sam Houston, Texas. The structure was built in 1941 as a temporary World War II structure. Included in the inventory are black and white photographs taken in 1980 of the structure.
Matter Waves in Atomic Artificial Graphene
Creators: name: Bartolo, Nicola
name: Antezza, Mauro
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a new model to realize artificial 2D lattices with cold atoms investigating the atomic artificial graphene: a 2D-confined matter wave is scattered by atoms of a second species trapped around the nodes of a honeycomb optical lattice. The system allows an exact determination of the Green function, hence of the transport properties. The inter-species interaction can be tuned via the interplay between scattering length and confinements. Band structure and density of states of a periodic lattice are derived for different values of the interaction strength. Emergence and features of Dirac cones are pointed out, together with the appearance of multiple gaps and a non-dispersive and isolated flat band. Robustness against finite-size and vacancies effects is numerically investigated.
description: 6 pages, 6 figures
Beyond Static Classification: Long-term Fairness for Minority Groups via Performative Prediction and Distributionally Robust Optimization
Creators: Peet-Pare, Garnet L.
Publisher: name: University of Alberta Library
Year: 2022

In recent years machine learning (ML) models have begun to be deployed at enormous scales, but too often without adequate concern for whether or not an ML model

will make fair decisions. Fairness in ML is a burgeoning research area, but work to define formal fairness criteria has some serious limitations. This thesis aims to combine and explore two recent areas of research in ML – distributionally robust optimization (DRO) and performative prediction – in an attempt to resolve some of these limitations. Performative prediction is a recent framework developed to understand the effects of when deploying model influences the distribution on which it is making predictions, an important concern for fairness. Research on performative prediction has thus far only examined risk minimization, however, which has the

potential to result in discriminatory models when working with heterogeneous data composed of majority and minority subgroups. We examine performative prediction with a distributionally robust objective and prove an analogous convergence result for what we call repeated distributionally robust optimization (RDRO). We then verify our results empirically and develop experiments to demonstrate the impact of using RDRO on learning fair ML models.
Response from Stanley Graves to John Brenneman, Building 4188 New Mechanical Enclosure, Fort Sam Houston, Texas
Creators: name: Graves, Stanley O.
Publisher: name: Texas Historical Commission
Year: 1995
Subjects: subject: JBSA-Sam Houston
valueUri: https://core.tdar.org/browse/geographic-keyword/82532/jbsa-sam-houston
subject: San Antonio
valueUri: https://core.tdar.org/browse/geographic-keyword/4149/san-antonio
subject: Bexar (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/4150/bexar-county
subject: Texas
valueUri: https://core.tdar.org/browse/geographic-keyword/6923/texas
subject: Building 4188
valueUri: https://core.tdar.org/browse/other-keyword/146814/building-4188
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
subject: Heritage Management
valueUri: https://core.tdar.org/browse/investigation-type/24/heritage-management

description: The Texas Historical Commission has received and reviewed Fort Sam Houston's submittal of further information regarding the new mechanical enclosure for Building 4188. The Commission concurs with the determination of "no adverse effect" in accordance with Section 106 Guidelines.
Tunnelling with wormhole creation
Creators: name: Ansoldi, Stefano
name: Tanaka, Takahiro
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The description of quantum tunnelling in the presence of gravity shows subtleties in some cases. Here we discuss wormhole production in the context of the spherically symmetric thin-shell approximation. By presenting a fully consistent treatment based on canonical quantization, we solve a controversy present in literature.
description: 13 pages; 4 figures
Informe Quiral 2021. La dificultad de comunicar una pandemia a largo plazo
Creators: name: Revuelta, Gema
name: Llorente, Carolina
name: Gonzalo, Carlos
name: Blanche, Pamela
Publisher: name: Zenodo
Year: 2022

description: El Informe Quiral resume anualmente el análisis de las informaciones sobre salud y medicina publicadas en los medios de comunicación escritos de mayor difusión de nuestro país. Surgido de una iniciativa conjunta entre la Fundació Vila Casas y el Centro de Estudios de Ciencia, Comunicación y Sociedad de la Universidad Pompeu Fabra . Se ha convertido en un importante instrumento sociológico: un referente anual de las grandes preocupaciones de nuestra sociedad en el ámbito sanitario y su repercusión en los medios de comunicación. El tema del Informe Quiral 2021 es la dificultad de comunicar una pandemia a largo plazo.
Influence of global features of a Bose-Einstein condensate on the vortex velocity
Creators: name: Cataldo, H. M.
name: Jezek, D. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the way in which the geometry of the trapping potential affects the vortex velocity in a Bose-Einstein condensate confined by a toroidal trap. We calculate the vortex precession velocity through a simple relationship between such a velocity and the gradient of the numerically obtained vortex energy. We observe that our results correspond very closely to the velocity calculated through time evolution simulations. However, we find that the estimates derived from available velocity field formulas present appreciable differences. To resolve such discrepancies, we further study the induced velocity field, analyzing the effect of global features of the condensate on such a field and on the precession velocity.
description: Typo (vector product) in eqs. 7, 8, 10, 12 and 13 of the journal version corrected
Hybrid Cellular Automaton for Field Cancerization
Creators: Deutscher, Karl N
Publisher: name: University of Alberta Library
Year: 2022

Field Cancerization is a hypothesis for the formation of cancer in certain types of tissues. It proposes the idea that a tumour can form in a “field” of cells that are predetermined for the development of cancer. Further, it is hypothesized that these fields are mainly caused by the onslaught of carcinogens on the tissue. Lastly, field cancerization proposes that tumour recurrence is related to the tumour being excised without fully removing the surrounding field.

The model we propose is a hybrid cellular automaton (CA) used to verify the previously stated propositions and determine how long cancer development will take. The CA is considered to be hybrid due to its’ rule depending on the results of partial differential equations (PDEs) and a multi-layer perceptron (MLP). The PDEs represent the spread of carcinogens in the tissue, while the MLP computes the effects of the carcinogens on the gene expression of the genes related to cancer development in the tissue under consideration.

We apply the model to field cancerization of the tongue. Most of the parameters of the model were chosen and are not based upon real data, as the necessary data was not available. This includes the choice of substituting nicotine, which is a mutagen but not currently listed as a carcinogen, to represent the carcinogen impacts of smoking tobacco. According to Health Canada tobacco contains over 4,000 chemicals, of which more than 70 are carcinogens. Many researchers are investigating how nicotine contributes to the development of cancer due to its use in non-tobacco products such as e-cigarettes and nicotine patches. One such study by Sanner & Grimsrud suggests that nicotine has several cancer-causing effects including speeding up cell growth, it is poisonous to cells, it kick-starts a process that is an important step in the path toward malignant cell growth, and it decreases the tumour suppressor CHK2. Therefore, we considered the readily available data with regards to nicotine as an appropriate choice to substitute for the over 70 carcinogens in tobacco. The other carcinogen considered in this thesis is ethanol to represent alcohol consumption. It was found that nicotine was a more potent carcinogen than ethanol. The combined impact of both ethanol and nicotine resulted in more aggressive cancer growth. It was verified that removing the field results in recurrence taking longer to occur than if the field is not removed. We also tracked cell lineages and found that as the field develops, the number of distinct cell lines decreases. Finally, we found that most tumour masses formed via polyclonal origin instead of monoclonal origin, though both occur within the simulations.
On the some properties of circulant matrix with third order linear recurrent sequence
Creators: name: Coskun, Arzu
name: Taskara, Necati
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: In this paper, firstly, we give the some fundamental properties of Van Der Laan numbers. After, we define the circulant matrices C(Z) which entries is third order linear recurrent sequence. In addition, we compute eigenvalues, spectral norm and determinant of this matrix. Consequently, by using properties of this sequence, we obtain the eigenvalues, norms and determinants of circulant matrices with Cordonnier, Perrin and Van Der Laan numbers.
Einstein-aether theory with a Maxwell field: General formalism
Creators: name: Balakin, Alexander B.
name: Lemos, José P. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We extend the Einstein-aether theory to include the Maxwell field in a nontrivial manner by taking into account its interaction with the time-like unit vector field characterizing the aether. We also include a generic matter term. We present a model with a Lagrangian that includes cross-terms linear and quadratic in the Maxwell tensor, linear and quadratic in the covariant derivative of the aether velocity four-vector, linear in its second covariant derivative and in the Riemann tensor. We decompose these terms with respect to the irreducible parts of the covariant derivative of the aether velocity, namely, the acceleration four-vector, the shear and vorticity tensors, and the expansion scalar. Furthermore, we discuss the influence of an aether non-uniform motion on the polarization and magnetization of the matter in such an aether environment, as well as on its dielectric and magnetic properties. The total self-consistent system of equations for the electromagnetic and the gravitational fields, and the dynamic equations for the unit vector aether field are obtained. Possible applications of this system are discussed. Based on the principles of effective field theories, we display in an appendix all the terms up to fourth order in derivative operators that can be considered in a Lagrangian that includes the metric, the electromagnetic and the aether fields.
description: 30 pages, no figures
Dalle Valli a Ginevra - Un gruppo di giovani sulle tracce del primo esilio dei valdesi [poster]
Dalle Valli a Ginevra - Un gruppo di giovani sulle tracce del primo esilio dei valdesi [poster]
Creators: name: Schellenbaum, Paola
Publisher: name: P. Schellenbaum, "Dalle Valli a Ginevra - Un gruppo di giovani sulle tracce del primo esilio dei valdesi", in Metti la storia al lavoro! Seconda conferenza italiana di Public History. Pisa, 11-15 giugno 2018
Year: 2020

description: Il poster illustra un progetto realizzato nell’estate 2017 da un gruppo di giovani sulle tracce del primo esilio dei valdesi (1686-1689), che ha percorso a piedi “Le strade degli ugonotti e dei valdesi” (www.lestradedeivaldesi.it), itinerario culturale riconosciuto dal Consiglio d’Europa, relativo a una parte importante della memoria su cui si fonda l’identità europea. Con l’obiettivo di suscitare una riflessione sull’uso pubblico della storia, il progetto è un contributo alla memoria delle migrazioni forzate.
Oxygen abundance distribution in Galactic disc
Creators: name: Korotin, S. A.
name: Andrievsky, S. M.
name: Luck, R. E.
name: Lepine, J. R. D.
name: Maciel, W. J.
name: Kovtyukh, V. V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have performed a NLTE analysis of the infrared oxygen triplet for a large number of cepheid spectra obtained with the Hobby-Eberly telescope. These data were combined with our previous NLTE results for the stars observed with Max Planck Gesellschaft telescope with the aim to investigate oxygen abundance distribution in Galactic thin disc. We find the slope of the radial (O/H) gradient value to be equal -0.058 dex/kpc. Nevertheless, we found that there could be a hint that the distribution might become flatter in the outer parts of the disc. This is also supported by other authors who studied open clusters, planetary nebulae and H II regions. Some mechanisms of flattening are discussed.
description: 7 pages, 7 figures, submitted to MNRAS