cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Complexity and Professionalization: The Nested Collaborative Nature of Teacher Learning
Creators: name: McKie, Kelley
Publisher: name: International Journal of Complexity in Education
Year: 2023

description: As perspectives on the role of teachers shift from technician to professional, models of teacher learning must adapt to honour this professionalization. The theory of complexity science enables a deeper understanding of ways to support and possibly promote teacher learning. We propose the Nested Collaborative Learning Model (NCLM) that builds from the Interconnected Model of Professional Growth while incorporating key elements of complexity science. Using narrative inquiry, this research exemplifies the NCLM through the learning journeys of two teachers. The NCLM represents learning as emerging from the nested, self-organizing, adaptive processes existing within the reality of a teacher's professional experiences.
description: International Journal of Complexity in Education, Vol 4, No 2 (2023)
User friendly ICT tools guidelines
Creators: name: Pérez, Rafael
name: Rabadán, José ALberto
name: Guerra, Víctor
name: Delgado, Francisco
name: Velázquez, José R.
name: Clavijo, Alberto
name: Aguilar, Lidia
Publisher: name: Zenodo
Year: 2019
Subjects: application
ICT tools
waste prevention
waste behaviour

description: In this deliverable from the URBAN-WASTE project, several ICT Tools (to be developed) for WasteApp’s data following EC’s Open Data policies are presented. Four different tools have been defined: bulk database in several formats (JSON, XLS and CSV), striking statistical data dashboard, configurable query-based interface, and a simple RESTfull API
Persuasion and decision making: An investigation into the methods of persuasion used by sell-side broker dealers to influence buy-side asset manager investment decisions pre- and post-MiFID II regulation change in the investment industry.
Creators: name: Rogers, Jonathan
Publisher: name: University of Leicester
Year: 2023
Subjects: Uncategorized

description: MiFID II is a series of regulatory changes that impact the financial services industry. For investment banking, it represents more than compliance and transparency rules, it changes the nature of the persuasive communications between financial institutions and institutional investors, namely sell-side brokers, and analysts, with buy-side asset managers. While initial research into MiFID II impact focused on the promotion of electronic trading platforms and monetization of sell-side research, little attention has been given to how MiFID II impacts the persuasive tactics used by brokers to influence manager investment decisions. This study investigates how brokers persuade pre- and post-MiFID II and outlines the impact of MiFID II on those methods. Using dual process models of persuasion as the theoretical framework, this study examines the use of confidence, source credibility, rapport, and social proof as peripheral routes to persuasion which encapsulate the tactics brokers employ through common channels of communication with managers. This study also examines the use of sell-side research as the central route to persuasion and finds that its use is integral for managers to make informed investment decisions pre- and post-MiFID II. This study finds research quality has increased post-MiFID II, yet production has decreased and serves as the major unintended consequence of the regulation contrary to its aims. Through semi-structured interviews and a thematic analysis, the specific methods of persuasion are examined as well as industry relationships, MiFID II fears, the use of compliance marketing, and new practices broker use to overcome MiFID II impact. This study contributes to the growing body of MiFID II research and provides a new context to understand financial services marketing using dual process models of persuasion. Findings from this study may help other industries looking at MiFID II as a template for their own industry-wide change.
A Remarkable New Identity Satisfied by the Dirac Matrices of a Bilocal Field Theory
Creators: name: Nash, Patrick L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In 1925 Elie Cartan described `triality' \cite{CARTAN25}, \cite{CARTAN} as a symmetry between SO$(8; \mathbb{C})$ vectors and the two types of Spin$(8; \mathbb{C})$ spinor. It is known that the reduced generators of the Clifford algebra $\mathbb{C}_{8}$ defined on the real, eight-dimensional Euclidean space $\mathbb{E}_{8}$ satisfy an identity that guarantees the existence of matrix representations (acting on the vector and spinor bundles of $\mathbb{E}_{8}$) of triality. Analogously, let $\mathbb{E}_{4,4}$ denote a real eight-dimensional pseudo-Euclidean vector space that is endowed with an indefinite inner product with signature $(+,+,+,-\,;\,-,-,-,+)$. As a normed vector space, $\mathbb{E}_{4,4} \cong M_{3,1} \times {}^{*}\!M_{3,1}$, where $M_{3,1}$ and ${}^{*}\!M_{3,1}$ denote real four-dimensional Minkowski spacetimes, with opposite signatures. %Clearly, bilocal Minkowski field theories may be cast on the $\mathbb{E}_{4,4}$ spacetime. The reduced generators (i.e., the Dirac matrices) of the pseudo Clifford algebra $\mathbb{C}_{4,4}$ defined on $\mathbb{E}_{4,4}$ satisfy an identity $\,$ \cite{NASH86} $\,,\,$ \cite{NASH90} that guarantees the existence of invertible linear mappings between each of the two types of $\overline{S0(4,4; \mathbb{R})}$ spinor and the ${S0(4,4; \mathbb{R})}$ vector, thereby realizing matrix representations of triality that act on the vector and spinor bundles of the spacetime $\mathbb{E}_{4,4}$. In this note we generalize this identity (see Eq.[\ref{newIdentity}]).
Improving Interdisciplinary Teaching through a Complexity Lens
Creators: name: Neitzel, Sarah
Publisher: name: International Journal of Complexity in Education
Year: 2023

description: In this article, we discuss the use of bipartite network analysis to understand and improve interdisciplinary teaching practice. We theorize mathematics and biology as part of a coevolving mutualistic ecosystem. As part of an interdisciplinary teaching initiative, we inventoried mathematics topics appearing in the marine biology classroom and their associated marine context. We then apply techniques of mutualistic bipartite networks analysis to this system to understand the use of mathematical concepts in a marine biology classroom. By analyzing the frequency and distribution of mathematics topics, we see that a variety of mathematical concepts are used across the course with most appearing only a few times. While this is an inherent trait of mutualistic coevolutionary networks, it can create a logistical challenge to supporting mathematics in the marine biology classroom. We find that marine biology topics containing the most mathematics are either close to the instructor’s research area or were introduced through externally developed educational resources. Finally, we analyze groups of topics that appear connected to each other more frequently to inform both interdisciplinary education development as well as disciplinary support. We also suggest ways to use network metrics to track interdisciplinary connections over time, helping us understand the impact of interventions on interdisciplinary teaching practice.
description: International Journal of Complexity in Education, Vol 4, No 2 (2023)
Leading Transformation within Educational Complexity
Creators: name: Araiza, Jennifer
Publisher: name: International Journal of Complexity in Education
Year: 2023

description: Unlocking the transformative power of education can be enhanced through a bottom-up, holistic, personalized approach. However, educators are often limited in their ability to execute such practices, especially within educational institutions. This paper considers the misalignment between educational system elements at multiple levels, system stagnation, why necessary change efforts often fail, and offers a transformational leadership framework based on a complexity theory perspective with neurological considerations. Aligning leadership principles to the emergent nature of transformation provides a classroom response intended to maximize the educational effectiveness of formative change processes as students emerge toward their potential. While many factors contribute to educational complexity, this paper’s scope is a multidisciplinary consideration of the social and historical constructs of the American education system design compared to the dynamic and emergent nature of individual learners.
description: International Journal of Complexity in Education, Vol 4, No 2 (2023)
High-performance control for power conversion topologies in battery charging applications
Creators: name: Amiri, Peyman
Publisher: name: University of British Columbia
Year: 2022

description: With recent advances in the battery-electric powertrain industry, the world is transforming toward electric mobility at an accelerated speed. Rapid charging systems are one of the critical enablers for the electrification of transportation. Therefore, developing high-power and highly efficient battery chargers has attracted significant attention. New power electronic converters serve as the building blocks for battery chargers and are developed every day to increase battery chargers efficiency and power density. However, employing high-performance topologies in industrial chargers leads to new control challenges. This work aims to identify and address these control challenges with low-cost solutions without significantly increasing the complexity of the charger design. In the first section of this work, the totem pole power factor correction converter is studied in detail, and unique control challenges associated with this topology are identified. Among these control challenges, the issue of a DC component in the AC mains current is identified in the totem pole structure and is addressed with a novel, low-cost control technique. This control technique eliminates the risk of asymmetrical excitation and saturation for distribution transformers in electric vehicle fleet applications. Secondly, a novel method for synchronous rectifier control in LLC resonant converter is proposed, which facilitates excellent coverage of the conduction period and is robust to the transient modes of operation, affecting industrial battery chargers. Employing this control technique significantly improves the efficiency and reliability of battery chargers. Additionally, this control technique eases the thermal management of high current battery chargers. The final section proposes a novel control technique to facilitate the bridgeless operation of a single-stage, single-phase AC-DC converter for battery charging applications. Employing the proposed control technique significantly improves the converter’s efficiency and removes a thermal hotspot in the practical design of a charger based on this topology. All the main contributions presented in this work are confirmed through experiments or computer simulation, which validates the contribution of this work toward the adoption of high-performance power conversion topologies in battery chargers.
QORAQALPOG'ISTON RESPUBLIKASIDA INTENSIV BALIQCHILIKNI RIVOJLANTIRISHDA YANGI TEXNOLOGIYALARNI JORIY QILISH
Creators: name: Atanazarov, K.M.
name: Dosekeyeva, A.Yе.
Publisher: name: Zenodo
Year: 2025

description: Maqola intensiv baliqchilik sohasidagi yangi texnologiyalar, ularni joriy etish va Qoraqalpog‘iston Respublikasida qishloq xo‘jaligini rivojlantirishga ta’siri tahliliga bag‘ishlangan. Resurslar cheklangan va baliq mahsulotlariga talab ortib borayotgan sharoitda akvaponika va jarayonlarni avtomatlashtirish kabi zamonaviy usullarni joriy etish tarmoqning mahsuldorligini sezilarli darajada oshirishi mumkin. Mintaqada baliqchilikning dolzarb muammolari, jumladan, zamonaviy texnologiyalar va moliyaviy resurslarning yetishmasligi, shuningdek, ishchi kuchining malakasini oshirish zarurati ko‘rib chiqilgan. Maqolada, shuningdek, ishlab chiqarishni ko‘paytirish va mahsulot sifatini yaxshilash kabi yangi texnologiyalardan foydalanishning afzalliklari, shuningdek, davlat tomonidan qo‘llab-quvvatlash va investitsiyalar zarurligi yoritilgan.
On irreducible representations of the exotic conformal Galilei algebra
Creators: name: Aizawa, Naruhiko
name: Isaac, Phillip S
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We investigate the representations of the exotic conformal Galilei algebra. This is done by explicitly constructing all singular vectors within the Verma modules, and then deducing irreducibility of the associated highest weight quotient modules. A resulting classification of infinite dimensional irreducible modules is presented.
description: 11 pages, added 6 references and conclusing remarks
Evaluation of the Effectiveness of Pollution Control Strategies on Travel: An Application of Disaggregated Behavioral Demand Models
Creators: name: Dunbar, Frederick C.
name: Dunbar, Frederick C.
Publisher: name: Unknown
Year: 1975
Subjects: Public Economics

description: Presented at the 16th Annual CTRF / TRF Joint Meeting, Nov. 3-5, 1975, Toronto, Canada
Crowsnest Pass Grain Rates: Time For A Change?
Creators: name: Nachtigall, Carol D.
name: Skinner, George F.
name: Tyrchniewicz, Edward W.
name: Nachtigall, Carol D.
name: Skinner, George F.
name: Tyrchniewicz, Edward W.
Publisher: name: Unknown
Year: 1975
Subjects: Public Economics

description: Presented at the 16th Annual CTRF / TRF Joint Meeting, Nov. 3-5, 1975, Toronto, Canada
Phenomenological modeling of long range noncontact friction in micro- and nanoresonators
Creators: name: Gusso, André
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Motivated by the results of an experiment using atomic force microscopy performed by Gotsmann and Fuchs [Phys. Rev. Lett. {\bf 86}, 2597 (2001)], where a strong energy loss due to the tip-sample interaction was measured, we investigate the potential implications of this energy loss channel to the quality factor of suspended micro- and nanoresonators. Because the observed tip-sample dissipation remains without a satisfactory theoretical explanation, two phenomenological models are proposed to generalize the experimental observations. A minimal phenomenological model simply extends for larger separations the range of validity of the power law found experimentally for the damping coefficient. A more elaborate phenomenological model assumes that the noncontact friction is a consequence of the Casimir force acting between the closely spaced surfaces. Both models provide quantitative results for the noncontact friction between any two objects which are then used to estimate the energy loss for suspended bar micro- and nanoresonators. Its is concluded that the energy loss due to the unknown mechanism has the potential to seriously restrict the quality factor of both micro- and nanoresonators.
Matched Input hypothesis in Foreign Language Learning from the Perspective of Complex Dynamic Systems Theory: A Case Study of English Learning in a College Preparatory Class for Ethnic Minorities in East China
Creators: name: Wang, Jinfen
Publisher: name: International Journal of Complexity in Education
Year: 2023

description: Based on one-year of research on a preparatory English class taken by minority students in one of East-China’s universities. Adopting the methods of questionnaire, interview and video recording in class, the study attempts to propose the matched-input hypothesis in foreign language learning from the perspective of Complex Dynamic Systems Theory. The hypothesis concerns teenage language learners in the EFL context, minority students in particular. The hypothesis holds that language study is fluctuating among repeller states. The hypothesis also maintains that teachers' bilingual language input in class aims to match student language proficiency, and that massive multi-mode audio input seeks to match Text input and that content input (meaning-oriented) and grammar input (form-oriented) is to match learners' cognition and mental development. The hypothesis further suggests that extracurricular text input is to be accompanied by audio input. This input aims to boost learners' intrinsic motivation and learning autonomy, thus improving their foreign language competence.
description: International Journal of Complexity in Education, Vol 4, No 2 (2023)
Radical Novelty and Self-Transcending Constructions in the Education System: Creating Equity and Sustainable Schooling
Creators: name: Koopmans, Matthijs
Publisher: name: International Journal of Complexity in Education
Year: 2023

description: Radical Novelty and Self-Transcending Constructions in the Education System: Creating Equity and Sustainable Schooling
description: International Journal of Complexity in Education, Vol 4, No 2 (2023)
Nutzbarkeit von Straßenverkehrsdaten für das touristische Besuchermanagement
Creators: name: Naschert, Lisa
name: Schmücker, Dirk
Publisher: name: Zenodo
Year: 2023
Subjects: traffic data, tourism, crwoding, visitor management

description: Daten zum Verkehrsaufkommen können einen hilfreichen Beitrag für die Messung von Besucherströmen und für ein (digitales) Besuchermanagement leisten. Häufig werden dazu Parkplatzdaten betrachtet. In diesem Kurzbericht betrachten wir eine weitere Datenquelle für Straßenverkehrsdaten in Deutschland stellen ihre Verwendbarkeit
description: Co-funded by Bundesministerium für Umwelt, Naturschutz, nukleare Sicherheit und Verbraucherschutz (DE), FKZ 67KI21005
LINGUOCULTUROLOGY AS A NEW FIELD OF MODERN LINGUISTICS
Creators: name: Ismatova, Nodirakhon
name: Ismatov, Ravshan
name: Abdumanonova, Rayhon
Publisher: name: Zenodo
Year: 2023

description: In this article, the study of linguocultural science, which studies the closeness of language and culture, is researched as a separate direction of modern linguistics.
Highway Impact Zones - Some Studies and Experience
Creators: name: Thiel, Floyd I.
name: Mingo, Roger D.
name: Thiel, Floyd I.
name: Mingo, Roger D.
Publisher: name: Unknown
Year: 1975
Subjects: Public Economics

description: Presented at the 16th Annual CTRF / TRF Joint Meeting, Nov. 3-5, 1975, Toronto, Canada
Adiabaticity and the Fate of Non-Gaussianities: The Trispectrum and Beyond
Creators: name: Meyers, Joel
name: Sivanandam, Navin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Extending the analysis of [1011.4934] beyond the bispectrum, we explore the superhorizon generation of local non-gaussianities and their subsequent approach to adiabaticity. Working with a class of two field models of inflation with potentials amenable to treatment with the delta N formalism we find that, as is the case for f_{NL}^{local}, the local trispectrum parameters tau_{NL} and g_{NL} are exponentially driven toward values which are slow roll suppressed if the fluctuations are driven into an adiabatic mode by a phase of effectively single field inflation. We argue that general considerations should ensure that a similar behavior will hold for the local forms of higher point correlations as well.
description: v3: Updated to match published version, minor corrections throughout, 17 pages; v2: Corrected counting of higher order non-linearity parameters, added references, updated formatting, conclusions unchanged, 16 pages; v1: 16 pages
Convex ordering and quantification of quantumness
Creators: name: Sperling, J.
name: Vogel, W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The characterization of physical systems requires a comprehensive understanding of quantum effects. One aspect is a proper quantification of the strength of such quantum phenomena. Here, a general convex ordering of quantum states will be introduced which is based on the algebraic definition of classical states. This definition resolves the ambiguity of the quantumness quantification using topological distance measures. Classical operations on quantum states will be considered to further generalize the ordering prescription. Our technique can be used for a natural and unambiguous quantification of general quantum properties whose classical reference has a convex structure. We apply this method to typical scenarios in quantum optics and quantum information theory to study measures which are based on the fundamental quantum superposition principle.
description: 9 pages, 2 figures, revised version; published in special issue "150 years of Margarita and Vladimir Man'ko"
An Efficient Solvent-free Synthesis of Spiro-substituted Cyclopropanes by Grinding
Creators: name: Wang, Changqing
name: Yang, Liu
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Information Systems not elsewhere classified

description: An Efficient Solvent-free Synthesis of Spiro-substituted Cyclopropanes by Grinding
Advancing our understanding of genome regulation via optimization of stem cell differentiation and interpretable deep learning
Creators: name: Novakovskiy, German
Publisher: name: University of British Columbia
Year: 2022

description: The regulation of gene expression is a core challenge in understanding how diverse types of cells can be produced from the same DNA instructions. Insights about this complex machinery advance not only science but applications in therapy and pharmacology. For instance, the differentiation of stem cells for the purpose of regenerative medicine to treat patients with diabetes. In my second chapter, I address the problem of optimizing the differentiation protocol towards definitive endoderm, the precursor of insulin-producing pancreatic beta cells, by replacing the expensive growth factor with cheap molecule alternatives. I introduce a multiple-step pipeline based on small molecule transcriptome response profiles. The discovered chemicals emphasize the importance of key transcription factors in the process, such as HIF and MYC. The study of transcription factors is of high importance, and will further promote our knowledge about differentiation. Motivated by the thought, I explore the current trends of studying transcription factors in the gene regulation context. With large-scale data generation efforts by public consortia such as ENCODE, deep learning methods have become pervasive. A large training dataset is fundamental to the success of these methods, however, the amount of TF-related data is often small. To tackle this issue, in my third chapter, I perform an in-depth assessment of transfer learning for TF binding prediction and provide biologically motivated guidelines for efficient training of deep models when the data is limited. An additional challenge for deep models beyond data sufficiency is interpretability. In the fourth chapter, I systematically categorize and summarize interpretation approaches, exploring their underlying assumptions, strengths, and weaknesses. Inspired by transparent deep learning architectures, I present ExplaiNN, a new transparent model for the genomics tasks. I explore its efficiency and usability on a variety of problems in the fifth chapter of this thesis. Finally, in the last chapter, I apply ExplaiNN to ATAC-seq datasets of mouse and human immune systems to study differences in cis-regulatory logic. Transparency of the new method allowed me to discover a reproducible set of sequence motifs that either individually or combinatorially are responsible for the bulk of the predictions, and tend to have species-specific occurrence patterns.
Vibrational density of states of silicon nanoparticles
Creators: name: Meyer, R.
name: Comtesse, D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The vibrational density of states of silicon nanoparticles in the range from 2.3 to 10.3 nm is studied with the help of molecular-dynamics simulations. From these simulations the vibrational density of states and frequencies of bulk-like vibrational modes at high-symmetry points of the Brillouin-zone have been derived. The results show an increase of the density of states at low frequencies and a transfer of modes from the high-frequency end of the spectrum to the intermediate range. At the same time the peak of transverse optical modes is shifted to higher frequencies. These observations are in line with previous simulation studies of metallic nanoparticles and they provide an explanation for a previously observed discrepancy between experimental and theoretical data [C. Meier et al., Physica E, 32, 155 (2006)].
description: 7 pages, 5 figure; accepted for publication in Phys. Rev. B
WasteApp database definition
Creators: name: Pérez-Jiménez, Rafael
name: Rabadán, José A.
name: Delgado, Francisco
name: Solana, Enrique
Publisher: name: Zenodo
Year: 2019
Subjects: application
WasteApp
waste prevention
waste behaviour
ICT tools

description: This deliverable shows the structure of the database to be implemented, so as to store the data acquired by WP5 WasteApp application.
The deflection angle of a gravitational source with global monopole in the strong field limit
Creators: name: Cheng, Hongbo
name: Man, Jingyun
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the gravitational lensing effect in the strong field background around the Schwarzschild black hole with extremely small mass and solid deficit angle subject to the global monopole by means of the strong field limit issue. We obtain the angular position and magnification of the relativistic images and show that they relate to the global monopole parameter $η$. We discuss that with the increase of parameter $η$, the minimum impact parameter $u_{m}$ and angular separation $s$ increase and the relative magnification $r$ decreases. We also find that $s$ grows extremely greatly as the increasing parameter $η$ becomes large enough. The effect from the solid deficit angle is the dependence of angular position, angular separation and relative magnification on parameter $η$, which may offer a way to characterize some possible distinct signatures of the Schwarzschild black hole with a solid deficit angle associated with global monopole.
description: 15 pages, 5 figures
Efficiency of surface-driven motion: nano-swimmers beat micro-swimmers
Creators: name: Sabass, Benedikt
name: Seifert, Udo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Surface interactions provide a class of mechanisms which can be employed for propulsion of micro- and nanometer sized particles. We investigate the related efficiency of externally and self-propelled swimmers. A general scaling relation is derived showing that only swimmers whose size is comparable to, or smaller than, the interaction range can have appreciable efficiency. An upper bound for efficiency at maximum power is 1/2. Numerical calculations for the case of diffusiophoresis are found to be in good agreement with analytical expressions for the efficiency.
Theory of 2D transport in graphene for correlated disorder
Creators: name: Li, Qiuzi
name: Hwang, E. H.
name: Rossi, E.
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We theoretically revisit graphene transport properties as a function of carrier density, taking into account possible correlations in the spatial distribution of the Coulomb impurity disorder in the environment. We find that the charged impurity correlations give rise to a density dependent graphene conductivity, which agrees well qualitatively with the existing experimental data. We also find, quite unexpectedly, that the conductivity could increase with increasing impurity density if there is sufficient inter-impurity correlation present in the system. In particular, the linearity (sublinearity) of graphene conductivity at lower (higher) gate voltage is naturally explained as arising solely from impurity correlation effects in the Coulomb disorder.
description: 5 pages, 3 figures
An Arctic mercury mystery : exploring environmental drivers of methylmercury bioaccumulation in the Beaufort Sea food web
Creators: name: Gillies, Emma
Publisher: name: University of British Columbia
Year: 2022

description: While mercury occurs naturally in the environment, human activity has significantly disturbed its biogeochemical cycle. Inorganic mercury entering aquatic systems can be transformed into methylmercury, a strong neurotoxicant that builds up in organisms and affects animal and public health. In the Arctic, top predators such as beluga whales—an ecologically and culturally significant species for many Inuit communities—can contain very high concentrations of methylmercury. Historical mercury concentrations in beluga in the western Canadian Arctic’s Beaufort Sea cannot be explained by mercury emissions trends alone, but they could potentially be driven by other factors in the rapidly changing Arctic, including rising temperatures, changes in food web structure, and melting sea ice and permafrost. This study explores the main drivers of mercury bioaccumulation in various species in the Beaufort Sea beluga food web using an ecosystem modelling software called Ecopath with Ecosim (EwE) and scenarios of environmental change informed by both Western science and Inuvialuit Knowledge. Through literature review, interviews with scientists, and engagement with Inuvialuit knowledge holders, I find that many environmental changes in the region have been climate-driven and have the potential to affect mercury cycling via three broad mechanisms: Mercury flows into the Beaufort Sea, mercury methylation, and food web effects. Comparing the effect of historical sea ice, sea surface temperature, and freshwater discharge time-series, exploratory ecosystem modelling highlighted that historical trends in beluga methylmercury were best explained by productivity-driven changes rather than mercury inputs, and that all three environmental drivers could help explain the decrease in mercury concentrations in beluga after the mid-1990s. This research identifies drivers of mercury variability, highlights knowledge gaps in both the Beaufort Sea ecosystem and mercury research more broadly, and makes space for different ways of knowing. Moving forward, methods employed here, such as fuzzy cognitive mapping and ecosystem modelling, could help us make fisheries and pollution management decisions and explore scenarios of change in an uncertain future.
Spin relaxation and band excitation of a dipolar BEC in 2D optical lattices
Creators: name: Pasquiou, B.
name: Bismut, G.
name: Maréchal, E.
name: Pedri, P.
name: Vernac, L.
name: Gorceix, O.
name: Laburthe-Tolra, B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We observe interband transitions mediated by the dipole-dipole interaction for an array of 1D quantum gases of chromium atoms, trapped in a 2D optical lattice. Interband transitions occur when dipolar relaxation releases an energy which matches or overcomes the lattice band gap. We analyze the role of tunneling in higher lattice bands on this process. We compare the experimental dipolar relaxation rate with a calculation based on a multiple Fermi Golden Rule approach, when the lattice sites are symmetric, and the magnetic field is parallel to the lattice axis. We also show that an almost complete suppression of dipolar relaxation is obtained below a magnetic field threshold set by the depth of the lattice: 1D quantum gases in an excited Zeeman state then become metastable.
description: 4 figures
A pruned dynamic programming algorithm to recover the best segmentations with $1$ to $K_{max}$ change-points
Creators: name: Rigaill, Guillem
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: A common computational problem in multiple change-point models is to recover the segmentations with $1$ to $K_{max}$ change-points of minimal cost with respect to some loss function. Here we present an algorithm to prune the set of candidate change-points which is based on a functional representation of the cost of segmentations. We study the worst case complexity of the algorithm when there is a unidimensional parameter per segment and demonstrate that it is at worst equivalent to the complexity of the segment neighbourhood algorithm: $\mathcal{O}(K_{max} n^2)$. For a particular loss function we demonstrate that pruning is on average efficient even if there are no change-points in the signal. Finally, we empirically study the performance of the algorithm in the case of the quadratic loss and show that it is faster than the segment neighbourhood algorithm.
description: 31 pages, An extended version of the pre-print
Compressed sensing for wide-field radio interferometric imaging
Creators: name: McEwen, J. D.
name: Wiaux, Y.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: For the next generation of radio interferometric telescopes it is of paramount importance to incorporate wide field-of-view (WFOV) considerations in interferometric imaging, otherwise the fidelity of reconstructed images will suffer greatly. We extend compressed sensing techniques for interferometric imaging to a WFOV and recover images in the spherical coordinate space in which they naturally live, eliminating any distorting projection. The effectiveness of the spread spectrum phenomenon, highlighted recently by one of the authors, is enhanced when going to a WFOV, while sparsity is promoted by recovering images directly on the sphere. Both of these properties act to improve the quality of reconstructed interferometric images. We quantify the performance of compressed sensing reconstruction techniques through simulations, highlighting the superior reconstruction quality achieved by recovering interferometric images directly on the sphere rather than the plane.
description: 15 pages, 8 figures, replaced to match version accepted by MNRAS
Matter Bounce Cosmology with the f(T) Gravity
Creators: name: Cai, Yi-Fu
name: Chen, Shih-Hung
name: Dent, James B.
name: Dutta, Sourish
name: Saridakis, Emmanuel N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the f(T) gravitational paradigm, in which gravity is described by an arbitrary function of the torsion scalar, can provide a mechanism for realizing bouncing cosmologies, thereby avoiding the Big Bang singularity. After constructing the simplest version of an f(T) matter bounce, we investigate the scalar and tensor modes of cosmological perturbations. Our results show that metric perturbations in the scalar sector lead to a background-dependent sound speed, which is a distinguishable feature from Einstein gravity. Additionally, we obtain a scale-invariant primordial power spectrum, which is consistent with cosmological observations, but suffers from the problem of a large tensor-to-scalar ratio. However, this can be avoided by introducing extra fields, such as a matter bounce curvaton.
description: 10 pages, 3 figures
Cascade coherence transfer and magneto-optical resonances at 455 nm excitation of Cesium
Creators: name: Auzinsh, Marcis
name: Ferber, Ruvin
name: Gahbauer, Florian
name: Jarmola, Andrey
name: Kalvans, Linards
name: Atvars, Aigars
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present and experimental and theoretical study of nonlinear magneto-optical resonances observed in the fluorescence to the ground state from the 7P_{3/2} state of cesium, which was populated directly by laser radiation at 455 nm, and from the 6P_{1/2} and 6P_{3/2} states, which were populated via cascade transitions that started from the 7P_{3/2} state and passed through various intermediate states. The laser-induced fluorescence (LIF) was observed as the magnetic field was scanned through zero. Signals were recorded for the two orthogonal, linearly polarized components of the LIF. We compared the measured signals with the results of calculations from a model that was based on the optical Bloch equations and averaged over the Doppler profile. This model was adapted from a model that had been developed for D_1 and D_2 excitation of alkali metal atoms. The calculations agree quite well with the measurements, especially when taking into account the fact that some experimental parameters were only estimated in the model.
description: small changes to text of previous version; 12 pages, 8 figures
A Lifting Relation from Macroscopic Variables to Mesoscopic Variables in Lattice Boltzmann Method: Derivation, Numerical Assessments and Coupling Computations Validation
Creators: name: Xu, Hui
name: Luan, Huibao
name: He, Yaling
name: Tao, Wenquan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In this paper, analytic relations between the macroscopic variables and the mesoscopic variables are derived for lattice Boltzmann methods (LBM). The analytic relations are achieved by two different methods for the exchange from velocity fields of finite-type methods to the single particle distribution functions of LBM. The numerical errors of reconstructing the single particle distribution functions and the non-equilibrium distribution function by macroscopic fields are investigated. Results show that their accuracy is better than the existing ones. The proposed reconstruction operator has been used to implement the coupling computations of LBM and macro-numerical methods of FVM. The lid-driven cavity flow is chosen to carry out the coupling computations based on the numerical strategies of domain decomposition methods (DDM). The numerical results show that the proposed lifting relations are accurate and robust.
URBAN-WASTE Public-Private Partnerships
Creators: name: Bono, Lorenzo
name: ANDREAZZOLI, Laura
name: BILLON, Yoann
name: Busch Thomsen Birte
name: CARVALHO, Rute
name: GIOURKA, Paraskevi
name: Lentucci, Lorella
name: GOMEZ, Celia GILSANZ
name: LÓPEZ-MURCIA, Javier
name: MOLOWNY, Alejandro
name: KAYADJANIAN, Maxime
name: Nascimento, Gisela
name: POZNIAK, Iva
name: SARNARI, Barbara
name: SCHEMBARI, Emma
name: THISEOS, Maria
Publisher: name: Zenodo
Year: 2019

description: Public-Private Partnerships (PPPs) have been signed in each pilot city in order to enhance the success of the

implementation of strategies, in order to strengthen the stakeholders’ involvement defining the roles and

responsibilities of each party involved on a voluntary basis.

The form and the commitments required to the stakeholders signing the PPPs have been different: in some cases

the commitments have been more focused on a general support in communication or organization activities,

while in oither cases they have been more related to specific actions, detailed in an operative plan.

In fact, each PPP contains or refers to an operative plan for the development of the mesures, which was drafted

collecting input from the local stakeholders.

In general, these agreements were signed during the 4th meeting of the Community of Practices, together with

the launch of the URBAN-WASTE measures’ implementation phase in each pilot city. More than 150 stakeholders

signed the PPPs in the 11 pilot cities.
Forging a Contextual Britishness: An Archaeologically Informed Social History of the Garrison of Fort de Chartres, 1765-1772
Creators: name: Spanbauer, Jeffrey A.
Publisher: name: University of Leicester
Year: 2023
Subjects: Uncategorized

description: This thesis is an archaeologically informed social history of Fort de Chartres, 1765-1772. It analyzes documentary and archaeological sources to examine the nature of identity and seeks further to understand British impact and interactions with European and Indigenous communities. It represents an assessment of material culture, space, structure, and practice in the formation of communities of identity, but moves beyond artifactual analysis to incorporate the historical record and forces which impacted this garrison’s ability to perform identity. Evidence suggests that identity formation was less about Britishness and more about demonstrating status, class, or rank. It seeks to offer an understanding of the garrison as a community, with its martial nature impacted by space, structures, and available material goods. This project integrates the archaeological collection with a rich, but ignored, documentary record. Fort de Chartres and colonial Illinois have been interpreted over the centuries as a French fort and French colony, with their assemblages as evidence of Frenchness. The British tenancy at the fort was temporally like the French garrison, with a similarly sized population, yet underemphasized historically. Attempting to capture the stories of these British communities of identity allows for a necessary counterweight to the traditional Francocentric narrative of this area. This is necessary not merely to provide a more inclusive or holistic account, as interpretations are relative to modern discussions about identity and communities, where over-simplified origin stories, material culture, or cultural values need critical assessment and challenged with more pluralistic perspectives. It will examine the context of this ephemeral period which encompasses an important phase in American history, as Illinois transitions between French and British colony, to its rapid positioning as ‘American’ by 1776.
MOESM1 of Abnormalities of hair structure and skin histology derived from CRISPR/Cas9-based knockout of phospholipase C-delta 1 in mice
Creators: name: Liu, Yu-Min
name: Liu, Wei
name: Jia, Jun-Shuang
name: Chen, Bang-Zhu
name: Chen, Heng-Wei
name: Liu, Yu
name: Bie, Ya-Nan
name: Gu, Peng
name: Sun, Yan
name: Xiao, Dong
name: Gu, Wei-Wang
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Virology
subject: Computational Biology

description: Additional file 1: Table S1. Target loci of mouse PLCD1 gene. Table S2. Generation of PLCD1-modified mice (F0). Table S3. Primers for qRT-PCR analysis of PLCD1and the related gene expression. Table S4. List of putative off-target sites (OTSs). Table S5. Primer pairs for PCR amplification of OTSs.
Generalized coorbit space theory and inhomogeneous function spaces of Besov-Lizorkin-Triebel type
Creators: name: Rauhut, Holger
name: Ullrich, Tino
Publisher: name: arXiv
Year: 2010
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: Coorbit space theory is an abstract approach to function spaces and their atomic decompositions. The original theory developed by Feichtinger and Gr{ö}chenig in the late 1980ies heavily uses integrable representations of locally compact groups. Their theory covers, in particular, homogeneous Besov-Lizorkin-Triebel spaces, modulation spaces, Bergman spaces, and the recent shearlet spaces. However, inhomogeneous Besov-Lizorkin-Triebel spaces cannot be covered by their group theoretical approach. Later it was recognized by Fornasier and the first named author that one may replace coherent states related to the group representation by more general abstract continuous frames. In the first part of the present paper we significantly extend this abstract generalized coorbit space theory to treat a wider variety of coorbit spaces. A unified approach towards atomic decompositions and Banach frames with new results for general coorbit spaces is presented. In the second part we apply the abstract setting to a specific framework and study coorbits of what we call Peetre spaces. They allow to recover inhomogeneous Besov-Lizorkin-Triebel spaces of various types of interest as coorbits. We obtain several old and new wavelet characterizations based on precise smoothness, decay, and vanishing moment assumptions of the respective wavelet. As main examples we obtain results for weighted spaces (Muckenhoupt, doubling), general 2-microlocal spaces, Besov-Lizorkin-Triebel-Morrey spaces, spaces of dominating mixed smoothness, and even mixtures of the mentioned ones. Due to the generality of our approach, there are many more examples of interest where the abstract coorbit space theory is applicable.
description: to appear in Journal of Functional Analysis
An experimental study of the incomplete Cholesky factorization for the anisotropic diffusion equation
Creators: name: Beauchamp, Austin
Publisher: name: University of British Columbia
Year: 2022

description: We consider the numerical solution of large and sparse linear systems arising from a finite difference discretization of the anisotropic diffusion equation. We study preconditioned conjugate gradient as an iterative solver, with the incomplete Cholesky factorization as a preconditioner. The incomplete Cholesky factor is created using two different dynamic dropping parameters: a drop tolerance to control the magnitude of included values, and a fill factor to control the memory allocation/usage of the factor. For large matrices, we show that certain drop tolerances will achieve optimal results with a controllable amount of memory usage. Our numerical experiments are based on a fast C code that has been written as part of this research project, and which uses an asymptotically optimal version of the Cholesky factorization as its base. We illustrate our findings on linear systems of dimensions up to ten million degrees of freedom.
A Feasibility of Downtown STOL Facilities Model
Creators: name: Haefner, Lonnie E.
name: Hutchins, J.L.
name: Lang, D.E.
name: Meyer, R.
name: Haefner, Lonnie E.
name: Hutchins, J.L.
name: Lang, D.E.
name: Meyer, R.
Publisher: name: Unknown
Year: 1976
Subjects: Public Economics

description: Presented at the 17th Transportation Research Forum meeting, Oct. 29-30,1976, Boston, MA
Masspool: Comprehensive Statewide Ride-Sharing in Perspective
Creators: name: Harkness, Glenn E.
name: Attanucci, John P.
name: Harkness, Glenn E.
name: Attanucci, John P.
Publisher: name: Unknown
Year: 1976
Subjects: Public Economics

description: Presented at the 17th Transportation Research Forum meeting, Oct. 29-30,1976, Boston, MA
Intercity Passenger Forecasting: The Use of Current Travel Forecasting Procedures
Creators: name: Stopher, Peter R.
name: Prashker, Joseph N.
name: Stopher, Peter R.
name: Prashker, Joseph N.
Publisher: name: Unknown
Year: 1976
Subjects: Public Economics

description: Presented at the 17th Transportation Research Forum meeting, Oct. 29-30,1976, Boston, MA
Rail Passenger Service in the Edmonton-Calgary Corridor
Creators: name: Jahnsen, Stein
name: Mayne, John
name: Morrall, John
name: Sturm, Fred
name: Jahnsen, Stein
name: Mayne, John
name: Morrall, John
name: Sturm, Fred
Publisher: name: Unknown
Year: 1976
Subjects: Public Economics

description: Presented at the 17th Transportation Research Forum meeting, Oct. 29-30,1976, Boston, MA