cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
E-learning Development For Children in Grades 1 to 2 Elementary School.pdf
Creators: name: Phangiano, Ricky
Publisher: name: figshare
Year: 2020
Subjects: subject: 100503 Computer Communications Networks
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: E-learning is a system or concept of education that uses information technology in teaching and learning. This is e-learning that is made only for children in grade 1 through grade 2 of elementary school.
Density of States of an Electron in the Image Field and Blocking Electric Field
Creators: name: Golovinski, P. A.
name: Preobrazhenskii, M. A.
name: Surovtzev, I. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The motion of an electron in an image field and a blocking electric field is considered in semiclassical approximation. An exact analytical expression is found for the density of the energy spectrum of states. The dependence of spectral density on energy is obtained in a wide range of electric field strengths. The energy ranges with a qualitatively different structure of the spectrum are determined.
BennyLienata.20171000007.RisetTeknologiInformasi.pdf
Creators: name: Lienata, Benny
Publisher: name: figshare
Year: 2020
Subjects: subject: 80611 Information Systems Theory
subject: FOS: Computer and information sciences

description: Research on the Effect of E-Commerce on Small andMedium Enterprises (SME)
Long Term and Short Term Aggregate Uncertainty and the Effect on Real Output
Creators: name: Guender, Alfred V.
name: Young, Robin
name: Guender, Alfred V.
name: Young, Robin
Publisher: name: Unknown
Year: 1995
Subjects: Risk and Uncertainty

description: This paper presents a test of the Friedman hypothesis: Friedman (1977) argues that increases in the average inflation rate are often associated with a rise in inflation variability and hence inflation uncertainty. With reference to the importance of the time horizon in analysing inflation uncertainty we utilise an unobserved components model of inflation which decomposes inflation uncertainty into two measures, one short term, the other long term. Results obtained from a panel of data for the G7 countries provide support for Friedman's basic contention that inflation uncertainty affects real output. In particular, long-term inflation uncertainty has a negative effect on real output. Our results also underscore the importance of central bank independence as a possible influence for fluctuations in real activity.
Contributions of $e^+e^-\to P(S)γ$ processes to muon $g-2$
Creators: name: Dubnickova, A. -Z.
name: Dubnicka, S.
name: Liptaj, A.
name: Pekarik, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The present situation on a comparison of theoretical evaluation of the muon anomalous magnetic moment with experimental one is roughly reviewed. Then by means of a recently elaborated unitary and analytic model of the meson transition form factors the contributions of $e^+e^-\to P(S) γ$ processes to muon $g-2$ is estimated.
description: 12 pages, 9 figures. Contribution presented at Pisa SIGHAD03, Workshop on Hadronic Cross Section at Low Energy, October 8-10, 2003, Italy
title: Culture, humanism and intellect: Cardinal Bessarion as patron of the arts
Creators: name: Bolick, Laura
Publisher: name: The Open University
Year: 2014

description: To date many scholars seem to have agreed that Cardinal Bessarion was a physical and spiritual exile from Constantinople who sought to preserve his national culture in the alien environment of fifteenth-century Rome. In this thesis I am seeking to re-open the debate about Bessarion's role and aspirations in western Europe as expressed through the mechanism of his cultural projects. I argue that, in his guise as a Roman cardinal, he endeavoured to establish a western identity for himself that furthered his political goals. Though he never rejected his Byzantine roots, the messages he seems to have conveyed through artistic and literary patronage suggest that he was working towards some sort of assimilation into his Italian environment. By examining key projects that the cardinal patronised I identify strong western characteristics in terms of style and message. His major fresco commission for his burial chapel in SS Apostoli, Rome was executed by Antoniazzo Romano, a local Roman artist, using stylistic and iconographic H vocabularies that were. current in quattrocento Italy. Bessarion then commissioned an icon from the same artist rather than from a Greek icon painter. In the literary sphere we can also recognise an effort to establish a library in the tradition of his Italian peers. And he even dabbled in the western technological advances in printing, becoming one of the first contemporary authors to have his work printed. This thesis seeks to re-focus a spotlight on Bessarion as an immigrant who was not compelled to leave his native land but who chose to relocate. It is proposed here that the cardinal's cultural projects reflected his efforts to integrate and to succeed in his adopted surroundings.
Improving automated segmentation of radio shows with audio embeddings
Creators: name: Berlage, Oberon
name: Lux, Klaus-Michael
name: Graus, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Audio features have been proven useful for increasing the performance of automated topic segmentation systems. This study explores the novel task of using audio embeddings for automated, topically coherent segmentation of radio shows. We created three different audio embedding generators using multi-class classification tasks on three datasets from different domains. We evaluate topic segmentation performance of the audio embeddings and compare it against a text-only baseline. We find that a set-up including audio embeddings generated through a non-speech sound event classification task significantly outperforms our text-only baseline by 32.3% in F1-measure. In addition, we find that different classification tasks yield audio embeddings that vary in segmentation performance.
description: 5 pages, 2 figures, submitted to ICASSP2020
Optimal Markup Responses to Trade Policy Reform in a Small, Open Economy: Evidence From New Zealand
Creators: name: Winkelmann, Liliana
name: Winkelmann, Rainer
name: Winkelmann, Liliana
name: Winkelmann, Rainer
Publisher: name: Unknown
Year: 1995
Subjects: subject: International Relations/Trade
subject: export unit values
subject: panel data
subject: tariffs
subject: pass-through

description: Recent developments in new trade theory have shown that trade liberalization in small open economies can affect terms of trade in imperfectly competitive markets. We use the natural experiment provided by the comprehensive New Zealand economic reforms in the mid 1980's to test this proposition. Using panel data on export unit values from Germany and the United States to several destinations including New Zealand, we find weak evidence for decreased export prices to New Zealand as a result of the reforms.
The Landauer Formula: a Magic Mantra Revisited
Creators: name: Das, Mukunda P.
name: Green, Frederick
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We review the conceptual structure of the Landauer theory of electron transport in the light of quantum kinetics, the orthodox framework for describing conductance at all scales. In a straightforward analysis, we assess popular claims for a rational link between Landauer theory on the one hand, and orthodox microscopics on the other. The need to explicitly include inelastic (dissipative) carrier relaxation is key to any well-posed microscopic model of open-system mesoscopic transport.
description: TeX source; 13 pp; 1 fig
title: Stratified shallow flow modelling
Creators: name: Bourban, Sébastien E.
Publisher: name: The Open University
Year: 2013

description: Environmental hydraulics covers a very wide range of applications including free surface flows in rivers. estuaries and lakes. To find engineering solutions to environmental hydraulics problems. 3D numerical modelling is nowadays widely used. However. the computation of sharp spatial gradients (such as found in stratified estuaries and lakes. around plumes near outfalls along rivers and coasts or in exchange areas of high shear). and the modelling of these processes along steep bathymetric slopes (such as found at the edge of dredged channels or of the continental shelf) remains a challenge. In addition. crude assumptions (such as the hydrostatic assumption) are often made to the primary differential equations in order to simplify the problem and enable long term prediction of environmental hydraulic changes. In this thesis. a robust adaptive mesh displacement (AMD) method is implemented and validated against the lock exchange case in particular. The AMD method aims at vertically focusing nodes within each water column to capture sharp gradients. while reducing the number of nodes or requiring prior knowledge of the flow structure. Second. a direct computation of dynamic pressure is introduced based on the equation of vertical momentum and validated against the analytical potential flow theory solution of a source-sink pair. Dynamic pressure is necessary to model destratification recirculation devices. or flow over dredge channel. or solitary waves. for instance. This direct computation method makes the hydrostatic assumption redundant. Third. a new advection scheme is implemented. whose main advantage is simplicity averaging over Riemann problems without solving them. while excessive numerical viscosity is compensated for by using high-resolution MUSCL type reconstruction. Recommendations are made in this thesis to extend the advection scheme developed herein for tracer advection to the non-linear shallow water equations. to the diffusion terms and to turbulence closure laws within the same finite element framework.
S&P 500 index mutual funds
Creators: name: Haslem, John
name: Baker, H
name: Smith, David
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3502
subject: Banking, finance and investment

description: The commodity-like nature of index mutual fund portfolios suggests that price competition should be more evident than with actively managed funds. After all, fund managers operate index funds not to beat their benchmarks or actively managed funds, but to mimic benchmark portfolios and performance, less expenses. Therefore, fund expenses should be singularly important in explaining and predicting differences in index fund performance. Haslem (2003) addresses the broader issues of fund expenses.
Heroine
Creators: name: McMartin, Emily
name: Douglass, John
name: Brannon, Kyle
name: Kirkman, Larry
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3605
subject: Screen and digital media

description: An established doctor and a young woman in early 20th century America become casualties of poor research and badly-executed drug policy.
Homecoming
Creators: name: Gabriel, Angeli
name: Stogner, Margaret
name: Palmer, Chris
name: Douglass, John
Publisher: name: American University
Year: 2023

description: This documentary explores the concept of home, while also covering aspects of a country most people know little about: The Philippines. Some would define home as a place, while other would define it by the people they love. From moving to a different state for school to moving halfway around the world for my mother's work, I've learned that homes - be they people or places - were essentially stepping stones between life stages. But one home, in particular stands out because it was my very first, the Philippines. After living most of my life in the United States, I journey to my first home to learn about my heritage and to explore my native land. I begin my journey oceanside with fishing boats skimming between islands of One Hundred Islands National Park and work my way inland toward my hometown of San Jacinto. In doing so, I show aspects of the country that are particularly different from what I was exposed to in the U.S.: the kind of natural beauty, the food, its people, etc. I hope to be the eyes for anyone who has never benn to the Philippines. Additionally, I introduce a personal element by exploring my heritage through this journey. I do this by focusing on my family, who make the Philippines home for me.
Flux surface shaping effects on tokamak edge turbulence and flows
Creators: name: Kendl, Alexander
name: Scott, Bruce D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Shaping of magnetic flux surfaces is found to have a strong impact on turbulence and transport in tokamak edge plasmas. A series of axisymmetric equilibria with varying elongation and triangularity, and a divertor configuration are implemented into a computational gyrofluid turbulence model. The mechanisms of shaping effects on turbulence and flows are identified. Transport is mainly reduced by local magnetic shearing and an enhancement of zonal shear flows induced by elongation and X-point shaping.
description: 10 pages, 11 figures. Submitted to Physics of Plasmas
A Dataset of Dockerfiles
Creators: name: Henkel, Jordan
name: Bird, Christian
name: Lahiri, Shuvendu K.
name: Reps, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Dockerfiles are one of the most prevalent kinds of DevOps artifacts used in industry. Despite their prevalence, there is a lack of sophisticated semantics-aware static analysis of Dockerfiles. In this paper, we introduce a dataset of approximately 178,000 unique Dockerfiles collected from GitHub. To enhance the usability of this data, we describe five representations we have devised for working with, mining from, and analyzing these Dockerfiles. Each Dockerfile representation builds upon the previous ones, and the final representation, created by three levels of nested parsing and abstraction, makes tasks such as mining and static checking tractable. The Dockerfiles, in each of the five representations, along with metadata and the tools used to shepard the data from one representation to the next are all available at: https://doi.org/10.5281/zenodo.3628771.
description: Published as a Data Showcase in MSR'2020
Case study : market opportunities for commercially thinned small diameter Douglas-fir trees
Creators: name: Aquino, Carlos
Publisher: name: The University of British Columbia
Year: 2014

description: Small Diameter logs are a becoming a regular occurrence in the forests of Interior British Columbia. This disturbance is caused by a decrease of forest fires and an increase of trees competing for water and soil. Historical records show that forest fires, use to create more space for young trees to grow by burning vast amounts of forest undergrowth, thereby produce nutrients for the soil in the form of fertilizers and minerals. Moreover, rainstorms required to diminish forest fires, contributed to the soil absorbing moisture for trees. However, due to global warming, changes in land use and settlement patterns, vast hectares of forest land are being exposed to dry weather. This meteorological behaviour is spreading across the Pacific Northwest from Canada to the USA. Regarding the ecological environment, Mule Deer winter ranges, which cover approximately 275,000 hectares in the Cariboo Forest Region are being affected by the small diameter Douglas Fir logs. In the past, large diameter Douglas Fir trees provided cover and forage for mule deers. Therefore this case study will focus on marketing small diameter Douglas Fir logs in established market niches that require a value-added product. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Magneto-transport in high g-factor, low-density two-dimensional electron systems confined in In_0.75Ga_0.25As/In_0.75Al_0.25As quantum wells
Creators: name: Desrat, W.
name: Giazotto, F.
name: Pellegrini, V.
name: Beltram, F.
name: Capotondi, F.
name: Biasiol, G.
name: Sorba, L.
name: Maude, D. K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report magneto-transport measurements on high-mobility two-dimensional electron systems (2DESs) confined in In_0.75Ga_0.25As/In_0.75Al_0.25As single quantum wells. Several quantum Hall states are observed in a wide range of temperatures and electron densities, the latter controlled by a gate voltage down to values of 1.10^11 cm^-2. A tilted-field configuration is used to induce Landau level crossings and magnetic transitions between quantum Hall states with different spin polarizations. A large filling factor dependent effective electronic g-factor is determined by the coincidence method and cyclotron resonance measurements. From these measurements the change in exchange-correlation energy at the magnetic transition is deduced. These results demonstrate the impact of many-body effects in tilted-field magneto-transport of high-mobility 2DESs confined in In_0.75Ga_0.25As/In_0.75Al_0.25As quantum wells. The large tunability of electron density and effective g-factor, in addition, make this material system a promising candidate for the observation of a large variety of spin-related phenomena.
description: 7 pages, 5 figures
Particle Competition and Cooperation for Semi-Supervised Learning with Label Noise
Creators: name: Breve, Fabricio Aparecido
name: Zhao, Liang
name: Quiles, Marcos Gonçalves
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Semi-supervised learning methods are usually employed in the classification of data sets where only a small subset of the data items is labeled. In these scenarios, label noise is a crucial issue, since the noise may easily spread to a large portion or even the entire data set, leading to major degradation in classification accuracy. Therefore, the development of new techniques to reduce the nasty effects of label noise in semi-supervised learning is a vital issue. Recently, a graph-based semi-supervised learning approach based on Particle competition and cooperation was developed. In this model, particles walk in the graphs constructed from the data sets. Competition takes place among particles representing different class labels, while the cooperation occurs among particles with the same label. This paper presents a new particle competition and cooperation algorithm, specifically designed to increase the robustness to the presence of label noise, improving its label noise tolerance. Different from other methods, the proposed one does not require a separate technique to deal with label noise. It performs classification of unlabeled nodes and reclassification of the nodes affected by label noise in a unique process. Computer simulations show the classification accuracy of the proposed method when applied to some artificial and real-world data sets, in which we introduce increasing amounts of label noise. The classification accuracy is compared to those achieved by previous particle competition and cooperation algorithms and other representative graph-based semi-supervised learning methods using the same scenarios. Results show the effectiveness of the proposed method.
title: Chinese students' perceptions of humour in British academic lectures
Creators: name: Wang, Yu
Publisher: name: The Open University
Year: 2012

description: My PhD study explores humour in British academic lectures and Chinese students' perceptions of it. The research interest was derived from my personal experience as an international student in Britain, when I repeatedly encountered occasions on which the lecturers' jokes fell flat for me. Britain is one of the most popular destinations for international students, but there are hardly any investigations into humour in academic contexts or international students' understanding of it, and none on Chinese students' problems with humour in lectures. In my study, instances of humour, referred to as 'humour episodes' (REs), were identified and analysed in a large number of lectures recorded in the British Academic Spoken English (BASE) corpus and nine academic lectures recorded by me. Some Chinese students, non-Chinese students and all of the lecturers at the lectures in my corpus, commented on selected REs in interviews and group discussions. Analysis of the REs was informed by interactional sociolinguistic and pragmatic theories. Major formal, semantic, and functional properties of humour in the lectures were identified. Humour arose from the incongruous interplay between these properties. The lecturers used humour to carry out teaching tasks and interpersonal activities. Humour heightened the lecturers' stances toward their topics. These stances embodied sociocultural values. The Chinese students had evident problems comprehending their lecturers' humour. Some expressed a feeling of alienation at having to laugh with other classmates without understanding the cause. The lecturers were often unaware of the Chinese students' perceptions of their humour, and sometimes appeared to be insensitive to their negative feelings. Expression of stance in the humour was particularly problematic to the Chinese students, but they tended to consider it peripheral to the main purpose of their studies. My study has implications for Chinese students' experience in British universities, and the internationalisation of British higher education.
LOGAN: High-Performance GPU-Based X-Drop Long-Read Alignment
Creators: name: Zeni, Alberto
name: Guidi, Giulia
name: Ellis, Marquita
name: Ding, Nan
name: Santambrogio, Marco D.
name: Hofmeyr, Steven
name: Buluç, Aydın
name: Oliker, Leonid
name: Yelick, Katherine
Publisher: name: arXiv
Year: 2020
Subjects: subject: Genomics (q-bio.GN)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Pairwise sequence alignment is one of the most computationally intensive kernels in genomic data analysis, accounting for more than 90% of the runtime for key bioinformatics applications. This method is particularly expensive for third-generation sequences due to the high computational cost of analyzing sequences of length between 1Kb and 1Mb. Given the quadratic overhead of exact pairwise algorithms for long alignments, the community primarily relies on approximate algorithms that search only for high-quality alignments and stop early when one is not found. In this work, we present the first GPU optimization of the popular X-drop alignment algorithm, that we named LOGAN. Results show that our high-performance multi-GPU implementation achieves up to 181.6 GCUPS and speed-ups up to 6.6x and 30.7x using 1 and 6 NVIDIA Tesla V100, respectively, over the state-of-the-art software running on two IBM Power9 processors using 168 CPU threads, with equivalent accuracy. We also demonstrate a 2.3x LOGAN speed-up versus ksw2, a state-of-art vectorized algorithm for sequence alignment implemented in minimap2, a long-read mapping software. To highlight the impact of our work on a real-world application, we couple LOGAN with a many-to-many long-read alignment software called BELLA, and demonstrate that our implementation improves the overall BELLA runtime by up to 10.6x. Finally, we adapt the Roofline model for LOGAN and demonstrate that our implementation is near-optimal on the NVIDIA Tesla V100s.
Homecoming
Creators: name: Gabriel, Angeli
name: Stogner, Margaret
name: Palmer, Chris
name: Douglass, John
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3605
subject: Screen and digital media

description: This documentary explores the concept of home, while also covering aspects of a country most people know little about: The Philippines. Some would define home as a place, while other would define it by the people they love. From moving to a different state for school to moving halfway around the world for my mother's work, I've learned that homes - be they people or places - were essentially stepping stones between life stages. But one home, in particular stands out because it was my very first, the Philippines. After living most of my life in the United States, I journey to my first home to learn about my heritage and to explore my native land. I begin my journey oceanside with fishing boats skimming between islands of One Hundred Islands National Park and work my way inland toward my hometown of San Jacinto. In doing so, I show aspects of the country that are particularly different from what I was exposed to in the U.S.: the kind of natural beauty, the food, its people, etc. I hope to be the eyes for anyone who has never benn to the Philippines. Additionally, I introduce a personal element by exploring my heritage through this journey. I do this by focusing on my family, who make the Philippines home for me.
I'm paying for this microphone pt.1 : The inside story of America's televised presidential debates
Creators: name: Richmond, Christopher
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3605
subject: Screen and digital media

description: The two major political parties collude to take over sponsorship of the general election presidential debates from the League of Women Voters and succeed in excluding major independent candidates per the wishes of the two parties' nominees.
I'm paying for this microphone pt. 2 : The inside story of America's televised presidential debates
Creators: name: Richmond, Christopher
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3605
subject: Screen and digital media

description: The two major political parties collude to take over sponsorship of the general election presidential debates from the League of Women Voters and succeed in excluding major independent candidates per the wishes of the two parties' nominees.
A Competence and Content Analysis of the English Language of Select Nigerian Paramilitary Operatives.pdf
Creators: name: Uwen, God'sgift Ogban
Publisher: name: figshare
Year: 2022
Subjects: subject: 200101 Communication Studies
subject: FOS: Media and communications
subject: 200322 Comparative Language Studies
subject: FOS: Languages and literature
subject: 200524 Comparative Literature Studies

description: This paper seeks to investigate language use in select Nigerian paramilitary agencies in Uyo, Akwa Ibom State, with a view to examining the degree of competence and message content of their verbal interactions. The pa per adopts communicative competence as the linguistic approach for the study. Data for the study were sourced from spontaneous communicative encounters in English, among operatives of the selected agencies through participant observation and field recordings using the parade ground and office environment as settings, with focus on the following role relationships: superior to subordinate, subordinate to superior and rankmate to rankmate interactions. Findings show that the operatives use peculiar forms and expressions that appear difficult for 'outsiders' to understand. In addition, the study provides insights into the degree of competence of the interactants in paramilitary discourse patterns as well as the impact of the hierarchical structure and institutional orientation on regulating the message content of the participants' discourse
Quantum state targeting
Creators: name: Rudolph, Terry
name: Spekkens, Robert W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a new primitive for quantum communication that we term "state targeting" wherein the goal is to pass a test for a target state even though the system upon which the test is performed is submitted prior to learning the target state's identity. Success in state targeting can be described as having some control over the outcome of the test. We show that increasing one's control above a minimum amount implies an unavoidable increase in the probability of failing the test. This is analogous to the unavoidable disturbance to a quantum state that results from gaining information about its identity, and can be shown to be a purely quantum effect. We provide some applications of the results to the security analysis of cryptographic tasks implemented between remote antagonistic parties. Although we focus on weak coin flipping, the results are significant for other two-party protocols, such as strong coin flipping, partially binding and concealing bit commitment, and bit escrow. Furthermore, the results have significance not only for the traditional notion of security in cryptography, that of restricting a cheater's ability to bias the outcome of the protocol, but also on a novel notion of security that arises only in the quantum context, that of cheat-sensitivity. Finally, our analysis of state targeting leads to some interesting secondary results, for instance, a generalization of Uhlmann's theorem and an operational interpretation of the fidelity between two mixed states.
The attractive Hubbard model as an $SO(3)$ system of competing phases: supersolid order and its thermal melting
Creators: name: Karmakar, Madhuparna
name: Ganesh, R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Competition between superconductivity and charge order is a recurring theme in contemporary condensed matter physics. This is quintessentially captured in the attractive Hubbard model, a simple theoretical model where the competition can be directly tuned. In previous studies by the current authors, it has been suggested that the Hubbard model maps to an $SO(3)$ non-linear sigma model, where the phase competition becomes manifest. In this article, we rigorously demonstrate this mapping and use it to study thermal disordering of a supersolid. Starting with the attractive Hubbard model in the presence of an orbital field, we take the limit of strong coupling where a pseudospin description emerges. The in-plane pseudospin components represent superconducting pairing while the out-of-plane component encodes charge density wave order. We obtain an effective spin-$1/2$ Hamiltonian with ferromagnetic in-plane couplings and antiferromagnetic z-z couplings. In addition, the orbital field gives rise to a textured Dzyaloshinskii-Moriya interaction that has the same periodicity as the magnetic unit cell. In order to examine the nature of ordering in this spin model, we consider it in the classical limit. We assume slowly varying fields, leading to the $SO(3)$ non-linear sigma model description. As an application of these ideas, we study the nature of ordering using simulated annealing and classical Monte Carlo simulations. The ground state represents a supersolid with coexisting superconductivity and charge order. It can be viewed as a `meron crystal', a regular arrangement of superconducting vortices with charge-ordered cores. The coherent overlap of core regions gives rise to coherent long-ranged charge order. As the temperature is raised, this charge order is lost via a sharp phase transition in the Ising universality class.
description: 11 pages, 6 figures
Special Function Methods for Bursty Models of Transcription
Creators: name: Gorin, Gennady
name: Pachter, Lior
Publisher: name: arXiv
Year: 2020
Subjects: subject: Methodology (stat.ME)
subject: Molecular Networks (q-bio.MN)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: We explore a Markov model used in the analysis of gene expression, involving the bursty production of pre-mRNA, its conversion to mature mRNA, and its consequent degradation. We demonstrate that the integration used to compute the solution of the stochastic system can be approximated by the evaluation of special functions. Furthermore, the form of the special function solution generalizes to a broader class of burst distributions. In light of the broader goal of biophysical parameter inference from transcriptomics data, we apply the method to simulated data, demonstrating effective control of precision and runtime. Finally, we suggest a non-Bayesian approach to reducing the computational complexity of parameter inference to linear order in state space size and number of candidate parameters.
description: Body: 15 pages, 2 figures, 2 tables. Supplement: 10 pages, 1 figure
Les femmes et l’alimentation : le rôle des normes alimentaires et corporelles
Creators: name: Gojard, Severine
name: Plessz, Marie
name: Regnier, Faustine
name: Gojard, Severine
name: Plessz, Marie
name: Regnier, Faustine
Publisher: name: Unknown
Year: 2017
Subjects: Food Consumption/Nutrition/Food Safety

description: Les pratiques alimentaires et leurs représentations sont ancrées dans l’évolution de la société, mais aussi dans les propriétés sociales (sexe, âge, position sociale…) et dans le cadre de vie des consommateurs. L’alimentation est aussi l’objet de multiples recommandations et normes sociales, qui ciblent en premier lieu les femmes, aussi bien pour ce qui concerne leur propre alimentation (et leur apparence corporelle) que celle de de leur famille. Comment ces recommandations ont évolué au cours des dernières décennies ? Comment les femmes se les approprient-elles et comment les mettent-elles en pratique ? Quatre recherches menées en sociologie viennent apporter un éclairage sur les processus de diffusion et de réception des normes alimentaires. L’analyse de la presse féminine depuis la Seconde Guerre mondiale montre que l’alimentation et le corps des femmes sont l’objet de normes de plus en plus exigeantes, qui viennent encadrer l’avènement d’une consommation de masse et la libération du corps des femmes. Ces normes entrent en concurrence avec d’autres prescriptions diffusées par différents canaux, en particulier le milieu médical. Les achats alimentaires des ménages reflètent les tensions entre recommandations et vie de tous les jours, mais sont aussi largement structurés par le cycle de vie. Les événements de la biographie familiale ou professionnelle sont des moments de plus grande sensibilité aux prescriptions dont chacun s’empare selon sa position sociale. On le voit particulièrement bien dans le cas des femmes enceintes : la grossesse n’annule pas les différences sociales. Même dans le cas d’une norme très consensuelle comme le rythme des repas des enfants, le respect de la norme suppose un important travail domestique et parental, dont témoigne l’organisation des petits déjeuners dans des ménages modestes.
Macmillan Precinct Oak Management Plan
Creators: name: Spring, Jonas
Publisher: name: The University of British Columbia
Year: 2010

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
CONCENTRAÇÃO ESPACIAL NA INDÚSTRIA DO CAFÉ EM MINAS GERAIS
Spatial Concentration in the Minas Gerais’ Coffee Industry
Creators: name: Chain, Caio Peixoto
name: De Castro, Luiz Gonzaga
name: Borges, Richardson Coimbra
name: Carvalho, Francisval De Melo
name: Chain, Caio Peixoto
name: De Castro, Luiz Gonzaga
name: Borges, Richardson Coimbra
name: Carvalho, Francisval De Melo
Publisher: name: Unknown
Year: 2016
Subjects: subject: Community/Rural/Urban Development
subject: Crop Production/Industries
subject: Local Productive Arrangements
subject: Local development
subject: Business competitiveness
subject: Exploratory Spatial Data Analysis

description: Brazilian Industrial Policy of 2011/2014 had the goal of mapping regions for Local Productive Arrangements (LPAs) in the roasting coffee sector, given that this type of organization has emerged as a strategy to overcome production barriers and to stimulate regional development. This work was conducted with the aim of analyzing the concentration of coffee industry in the municipalities of Minas Gerais, Brazil, to delimit the locations with potential for structuring LPAs. This concentration was analyzed by means of spatial relations between municipalities. With this, we calculated the spatial autocorrelation between municipalities using the Global and Local Moran Index. The results allowed us to delimit two locations with the greatest potential to form LPAs in the coffee industry, given that they met the criteria related to the index, participation in employment and number of establishments throughout the period of analysis. The locations were municipalities Capelina and Ervália. Neighboring towns with roasting coffee activity should also participate in the industrial organization model.
The Standard Model particle content with complete gauge symmetries from the minimal ideals of two Clifford algebras
Creators: name: Gresnigt, Niels G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Building upon previous works, it is shown that two minimal left ideals of the complex Clifford algebra $\mathbb{C}\ell(6)$ and two minimal right ideals of $\mathbb{C}\ell(4)$ transform as one generation of leptons and quarks under the gauge symmetry $SU(3)_C\times U(1)_{EM}$ and $SU(2)_L\times U(1)_Y$ respectively. The $SU(2)_L$ weak symmetries are naturally chiral. Combining the $\mathbb{C}\ell(6)$ and $\mathbb{C}\ell(4)$ ideals, all the gauge symmetries of the Standard Model, together with its lepton and quark content for a single generation are represented, with the dimensions of the minimal ideals dictating the number of distinct physical states. The combined ideals can be written as minimal left ideals of $\mathbb{C}\ell(6)\otimes\mathbb{C}\ell(4)\cong \mathbb{C}\ell(10)$ in a way that preserves individually the $\mathbb{C}\ell(6)$ structure and $\mathbb{C}\ell(4)$ structure of physical states. This resulting model includes many of the attractive features of the Georgi and Glashow $SU(5)$ grand unified theory without introducing proton decay or other unobserved processes. Such processes are naturally excluded because they do not individually preserve the $\mathbb{C}\ell(6)$ and $\mathbb{C}\ell(4)$ minimal ideals.
description: 13 Pages
ANÁLISIS A LA IDENTIFICACIÓN DE REDES DE CONTAGIO Y AISLAMIENTO SOCIAL COMO ESTRATEGIA DE PREVENCIÓN EN SALUD PÚBLICA FRENTE A LA PANDEMIA COVID-19 (CORONAVIRUS)
Creators: name: Sánchez, César
name: Llerena, Renato
Publisher: name: figshare
Year: 2020
Subjects: subject: Anthropology
subject: FOS: Sociology
subject: Education
subject: Geography
subject: Sociology
subject: 140305 Time-Series Analysis
subject: FOS: Economics and business
subject: 140301 Cross-Sectional Analysis

description: The story takes place in front of us, the exposed information is a contribution based on documents, interviews and data, which explain and / or generate actions against the transmission of SARS-CoV-2 causing COVID-19, by including this a direct transmission route, the transmission projection methodologies have determined the high rate of spread of the virus, the processes of preventing and containing the spread of the pandemic are up to this point in constant change and learning, Our analysis seeks to emphasize the need to maintain a balance between the capacity of health services to care for cases and the importance of epidemiological fences based on the sampling and quarantine isolation of suspected cases in the different primary and secondary propagation.
Perception of the importance of chemistry research papers and comparison to citation rates
Creators: name: Borchardt, Rachel
name: Moran, Cullen
name: Cantrill, Stuart
name: Chemjobber
name: Oh, See Arr
Publisher: name: American University
Year: 2023

description: Chemistry researchers are frequently evaluated on the perceived significance of their work with the citation count as the most commonly-used metric for gauging this property. Recent studies have called for a broader evaluation of significance that includes more nuanced bibliometrics as well as altmetrics to more completely evaluate scientific research. To better understand the relationship between metrics and peer judgements of significance in chemistry, we have conducted a survey of chemists to investigate their perceptions of previously published research. Focusing on a specific issue of the Journal of the American Chemical Society published in 2003, respondents were asked to select which articles they thought best matched importance and significance given several contexts: highest number of citations, most significant (subjectively defined), most likely to share among chemists, and most likely to share with a broader audience. The answers to the survey can be summed up in several observations. The ability of respondents to predict the citation counts of established research is markedly lower than the ability of those counts to be predicted by the h-index of the corresponding author of each article. This observation is conserved even when only considering responses from chemists whose expertise falls within the subdiscipline that best describes the work performed in an article. Respondents view both cited papers and significant papers differently than papers that should be shared with chemists. We conclude from our results that peer judgements of importance and significance differ from metrics-based measurements, and that chemists should work with bibliometricians to develop metrics that better capture the nuance of opinions on the importance of a given piece of research.
d-density wave state in an external magnetic field
Creators: name: Sharapov, S. G.
name: Gusynin, V. P.
name: Beck, H.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a study of the electrical and thermal conductivities of the $d$-density wave (DDW) state in an external magnetic field $B$ in the low temperature regime and in the presence of impurities. We show that in the zero temperature limit, $T \to 0$, the Wiedemann-Franz (WF) law remains intact. For finite $T$ the WF law violation is possible and it is enhanced by the external field.
description: 2 pages, 1 figure, submitted to M2S-Rio 2003 Proceedings
Artificial Multiferroics and Enhanced Magnetoelectric Effect in van der Waals Heterostructures
Creators: name: Lu, Yan
name: Fei, Ruixiang
name: Lu, Xiaobo
name: Zhu, Linghan
name: Wang, Li
name: Yang, Li
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Multiferroic materials with coupled ferroelectric and ferromagnetic properties are important for multifunctional devices due to their potential ability of controlling magnetism via electric field, and vice versa. The recent discoveries of two-dimensional ferromagnetic and ferroelectric materials have ignited tremendous research interest and aroused hope to search for two-dimensional multiferroics. However, intrinsic two-dimensional multiferroic materials and, particularly, those with strong magnetoelectric couplings are still rare to date. In this paper, using first-principles simulations, we propose artificial two-dimensional multiferroics via a van der Waals heterostructure formed by ferromagnetic bilayer chromium triiodide (CrI3) and ferroelectric monolayer Sc2CO2. In addition to the coexistence of ferromagnetism and ferroelectricity, our calculations show that, by switching the electric polarization of Sc2CO2, we can tune the interlayer magnetic couplings of bilayer CrI3 between ferromagnetic and antiferromagnetic states. We further reveal that such a strong magnetoelectric effect is from a dramatic change of the band alignment induced by the strong build-in electric polarization in Sc2CO2 and the subsequent change of the interlayer magnetic coupling of bilayer CrI3. These artificial multiferroics and enhanced magnetoelectric effect give rise to realizing multifunctional nanoelectronics by van der Waals heterostructures.
description: 31 pages, 4 figures, and 2 tables
UM ESTUDO SOBRE A INFLUÊNCIA DA INOVAÇÃO ORGANIZACIONAL SOBRE O DESEMPENHO OPERACIONAL NA INDÚSTRIA DO CAFÉ
A Study on the Influence of Organizational Innovation on the Operational Performance in the Coffee Industry
Creators: name: Coti-Zelati, Paolo Edoardo
name: Zilber, Moises Ari
name: Coti-Zelati, Paolo Edoardo
name: Zilber, Moises Ari
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agribusiness
subject: Production Economics
subject: Research and Development/Tech Change/Emerging Technologies
subject: Research
subject: Development
subject: Performance
subject: Agribusiness

description: The objective of this study was to determine whether the organizational innovation construct influences, in a positive way, the operating performance of the coffee industry from the managers’ point of view. To this end, we conducted a descriptive quantitative research with 86 managers working in the coffee industry. The data collected, treated by structural equation modeling, indicated a valid relation between the constructs’ organizational innovation and the operational performance. Based on these results, we determined that there is a positive relation between innovation and operational performance. In other words, the practice of actions related to organizational innovation has positive influence over the operating performance in the coffee industry. Innovation contributes in order for the organization to overcome the difficulties of an unfavorable economic environment and achieve superior operational performance. Finally, this study aimed at contributing to expand the knowledge concerning the coffee industry and to achieve grants in the corporate environment, to understand the possible impacts of innovation over operating performance in the coffee industry.