cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Augmented Reality for ship bridges in Arctic Operations, a Virtual Reality experiment.
Creators: name: van den Oever, Floris
Publisher: name: Open Science Framework
Year: 2021
Subjects: subject: Industrial and Organizational Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Augmented Reality
subject: Communication
subject: Maritime Operation
subject: SEDNA
subject: Situation Awareness
subject: Usability
subject: Virtual Reality

description: members. Key components of that collaboration are situation awareness and communication. Augmented Reality has the potential to improve both. Besides that, the usability and potential risks and advantages of Augmented Reality for ship bridges must be understood before it is implemented. Therefore, we ask the following research questions: 1. Can Augmented Reality improve the situation awareness of ship bridge operators? 2. Does situation awareness related communication of ship bridge operators change when adding Augmented Reality to the ship bridge? 3. What is the perceived usability of these Augmented Reality systems for ship bridges? 4. What are perceived risks and advantages of these Augmented Reality systems for ship bridges? To answer these questions, we will conduct an experiment in which participants experience two arctic maritime scenarios in Virtual Reality from the vantage point of the ship bridge, with or without Augmented Reality system.
Исследование корреляции между образованием родителей и образованием детей
Creators: name: Шмырев Иван Викторович
name: Нестеров Дмитрий Васильевич
Publisher: name: Проблемы педагогики
Year: 2019
Subjects: ОБРАЗОВАНИЕ РОДИТЕЛЕЙ
ОБРАЗОВАНИЕ ДЕТЕЙ
ВЛИЯНИЕ ОБРАЗОВАНИЯ РОДИТЕЛЕЙ
УСПЕВАЕМОСТЬ ДЕТЕЙ

description: В статье рассматривается возможность связи между образованием родителей и годами обучения их детей. Разбираются различные факторы влияния: от времени, непосредственно проведенного с детьми, до возможности финансовых инвестиций в их образование. Также учитывается более опосредованное влияние через приемных родителей или некоторые образовательные, экономические реформы.
Latent Space Data Assimilation by using Deep Learning
Creators: name: Peyron, Mathis
name: Fillion, Anthony
name: Gürol, Selime
name: Marchais, Victor
name: Gratton, Serge
name: Boudier, Pierre
name: Goret, Gael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Performing Data Assimilation (DA) at a low cost is of prime concern in Earth system modeling, particularly at the time of big data where huge quantities of observations are available. Capitalizing on the ability of Neural Networks techniques for approximating the solution of PDE's, we incorporate Deep Learning (DL) methods into a DA framework. More precisely, we exploit the latent structure provided by autoencoders (AEs) to design an Ensemble Transform Kalman Filter with model error (ETKF-Q) in the latent space. Model dynamics are also propagated within the latent space via a surrogate neural network. This novel ETKF-Q-Latent (thereafter referred to as ETKF-Q-L) algorithm is tested on a tailored instructional version of Lorenz 96 equations, named the augmented Lorenz 96 system: it possesses a latent structure that accurately represents the observed dynamics. Numerical experiments based on this particular system evidence that the ETKF-Q-L approach both reduces the computational cost and provides better accuracy than state of the art algorithms, such as the ETKF-Q.
description: 15 pages, 7 figures and 3 tables
Solution of the Dirac equation in the rotating Bertotti-Robinson spacetime
Creators: name: Al-Badawi, A.
name: Sakalli, I.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Dirac equation is solved in the rotating Bertotti-Robinson spacetime. The set of equations representing the Dirac equation in the Newman-Penrose formalism is decoupled into an axial and angular part. The axial equation, which is independent of mass, is solved exactly in terms of hypergeometric functions. The angular equation is considered both for massless (neutrino) and massive spin-(1/2) particles. For the neutrinos, it is shown that the angular equation admits an exact solution in terms of the confluent Heun equation. In the existence of mass, the angular equation does not allow an analytical solution, however, it is expressible as a set of first order differential equations apt for numerical study.
description: 17 pages, no figure. Appeared in JMP (May, 2008)
Французские заимствования в румынском языке как показатель определенных сфер культурного влияния Франции на Румынию
Creators: name: Семенова Екатерина Алексеевна
Publisher: name: Научный журнал
Year: 2019
Subjects: ФРАНЦУЗСКИЙ ЯЗЫК
ФРАНЦУЗСКИЕ ЗАИМСТВОВАНИЯ
ИСТОРИЯ ЯЗЫКА
РУМЫНСКИЙ ЯЗЫК
ЛИТЕРАТУРНЫЙ ЯЗЫК

description: В статье рассматривается такой обширный лексический слой румынского языка, как французские заимствования. Приводятся причины возникновения данных заимствований, их периодизация. В XVIIIXIX веках французский язык доминировал не только в науке и искусстве Румынии, но и в повседневной жизни образованных слоев населения. Все это не могло не сказаться на количестве и тематике заимствованных из французского языка слов. Заимствования систематизированы по нескольким тематическим группам, что позволяет продемонстрировать основные сферы жизнедеятельности, в которых культурное влияние Франции наблюдается наиболее отчетливо.
Изученность и геологическое строение месторождения Васин
Creators: name: Фролова Анна Александровна
Publisher: name: Вопросы науки и образования
Year: 2019
Subjects: ВАСИН
РУДОНОСНОСТЬ
МЕЗОКАЙНОЗОЙ
МЕТАСОМАТИТЫ
ДЕЛЛЮВИАЛЬНЫЕ ОБРАЗОВАНИЯ
ТЫКАШИНСКАЯ АНТИКЛИНАЛЬ

description: Данная статья посвящена изученности и геологическому строению месторождения Васин. В процессе разведки 2005-2007 гг существенным образом пересмотрена концепция геологического строения и масштабы месторождения, характеризующие его как крупный золоторудный объект с большими прогнозными ресурсами и весьма благоприятными перспективами на промышленное освоение.
Unsupervised Learning of Monocular Depth and Ego-Motion Using Multiple Masks
Creators: name: Wang, Guangming
name: Wang, Hesheng
name: Liu, Yiling
name: Chen, Weidong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: A new unsupervised learning method of depth and ego-motion using multiple masks from monocular video is proposed in this paper. The depth estimation network and the ego-motion estimation network are trained according to the constraints of depth and ego-motion without truth values. The main contribution of our method is to carefully consider the occlusion of the pixels generated when the adjacent frames are projected to each other, and the blank problem generated in the projection target imaging plane. Two fine masks are designed to solve most of the image pixel mismatch caused by the movement of the camera. In addition, some relatively rare circumstances are considered, and repeated masking is proposed. To some extent, the method is to use a geometric relationship to filter the mismatched pixels for training, making unsupervised learning more efficient and accurate. The experiments on KITTI dataset show our method achieves good performance in terms of depth and ego-motion. The generalization capability of our method is demonstrated by training on the low-quality uncalibrated bike video dataset and evaluating on KITTI dataset, and the results are still good.
description: Accepted to ICRA 2019
Modulated accretion in T Tauri star RY Tau -- stable MHD propeller or a planet at 0.2 AU?
Creators: name: Petrov, P. P.
name: Romanova, M. M.
name: Grankin, K. N.
name: Artemenko, S. A.
name: Babina, E. V.
name: Gorda, S. Yu.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Planets are thought to form at the early stage of stellar evolution when the mass accretion is still ongoing. RY Tau is a T Tauri type star at the age of a few Myr, with accretion disc seen at high inclination, so that line of sight crosses both the wind and the accretion gas flows. In a long series of spectroscopic monitoring of the star in 2013-2020, we detected variations in H-alpha and NaI D absorptions at radial velocities of infall (accretion) and outflow (wind) with a period of about 22 days. The absorptions in the infalling and the outflowing gas streams vary in anti-phase: an increase of infall is accompanied by a decrease of outflow, and vice versa. These flip-flop oscillations retain phase over several years of observations. We suggest that this may result from the MHD processes at the disk-magnetosphere boundary in the propeller mode. Another possibility is that a massive planet modulates some processes in the disc and provides the observed effects. The period, if Keplerian, corresponds to a distance of 0.2 AU, which is close to the dust sublimation radius in this star. The presence of the putative planet may be confirmed by radial velocity measurements: expected amplitude is > 90 m/s if a planet mass is > 2 Mj.
description: 7 pages, 12 figures, accepted for publication in MNRAS
Dijet signals for low mass strings at the LHC
Creators: name: Anchordoqui, Luis A
name: Goldberg, Haim
name: Lust, Dieter
name: Nawata, Satoshi
name: Stieberger, Stephan
name: Taylor, Tomasz R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider extensions of the standard model based on open strings ending on D-branes, with gauge bosons due to strings attached to stacks of D-branes and chiral matter due to strings stretching between intersecting D-branes. Assuming that the fundamental string mass scale is in the TeV range and the theory is weakly coupled, we discuss possible signals of string physics at the Large Hadron Collider (LHC). In such D-brane constructions, the dominant contributions to full-fledged string amplitudes for all the common QCD parton subprocesses leading to dijets are completely independent of the details of compactification, and can be evaluated in a parameter-free manner. We make use of these amplitudes evaluated near the first resonant pole to determine the discovery potential of LHC for the first Regge excitations of the quark and gluon. Remarkably, the reach of LHC after a few years of running can be as high as 6.8 TeV. Even after the first 100 pb^{-1} of integrated luminosity, string scales as high as 4.0 TeV can be discovered. For string scales as high as 5.0 TeV, observations of resonant structures in pp \to {\rm direct} γ+ jet can provide interesting corroboration for string physics at the TeV-scale.
description: v2 contains discussion on dijet angular distributions. To be published in Physical Review Letters; v3 typographical error in equations (8), (9), (10), and (11) has been corrected
Adapting CRISP-DM for Idea Mining: A Data Mining Process for Generating Ideas Using a Textual Dataset
Creators: name: Ayele, W. Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Data mining project managers can benefit from using standard data mining process models. The benefits of using standard process models for data mining, such as the de facto and the most popular, Cross-Industry-Standard-Process model for Data Mining (CRISP-DM) are reduced cost and time. Also, standard models facilitate knowledge transfer, reuse of best practices, and minimize knowledge requirements. On the other hand, to unlock the potential of ever-growing textual data such as publications, patents, social media data, and documents of various forms, digital innovation is increasingly needed. Furthermore, the introduction of cutting-edge machine learning tools and techniques enable the elicitation of ideas. The processing of unstructured textual data to generate new and useful ideas is referred to as idea mining. Existing literature about idea mining merely overlooks the utilization of standard data mining process models. Therefore, the purpose of this paper is to propose a reusable model to generate ideas, CRISP-DM, for Idea Mining (CRISP-IM). The design and development of the CRISP-IM are done following the design science approach. The CRISP-IM facilitates idea generation, through the use of Dynamic Topic Modeling (DTM), unsupervised machine learning, and subsequent statistical analysis on a dataset of scholarly articles. The adapted CRISP-IM can be used to guide the process of identifying trends using scholarly literature datasets or temporally organized patent or any other textual dataset of any domain to elicit ideas. The ex-post evaluation of the CRISP-IM is left for future study.
description: 13 pages, 14 figures. International Journal of Advanced Computer Science and Applications, 2020
A primer on the (2+1) Einstein universe
Creators: name: Barbot, Thierry
name: Charette, Virginie
name: Drumm, Todd
name: Goldman, William M.
name: Melnick, Karin
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53-XX, 83-XX

description: The Einstein universe is the conformal compactification of Minkowski space. It also arises as the ideal boundary of anti-de Sitter space. The purpose of this article is to develop the synthetic geometry of the Einstein universe in terms of its homogeneous submanifolds and causal structure, with particular emphasis on dimension $2 + 1$, in which there is a rich interplay with symplectic geometry.
description: 56 pages, 6 figures
Capsular antigens of gram-negative bacteria
Creators: name: Altman, Eleonora
Publisher: name: University of British Columbia
Year: 2010

description: Klebsiella, Escherichia coli, Salmonella and Shigella are among the most frequently found pathogenic Enterobacteria. The classification of Salmonella and Shigella relates mainly to the O antigens which are lipopolysaccharides, whereas for Klebsiella and E. coli capsular polysaccharides (K antigens) play an important role. Approximately eighty serologically different Klebsiella strains are known of which seventy structures have been determined. The structure of the capsular polysaccharide isolated from Klebsiella serotype K50 is presented here. It is unique among the Klebsiella K antigens in having a 1 five-plus-two' repeating unit. [See Thesis for Diagram] The K antigens of Escherichia coli can be divided into three groups (A, B, L) on the basis of their thermolability, all of which comprise acidic polysaccharides. The extracellular A antigens of E. coli bear a strong similarity to the K antigens of Klebsiella. The present investigation describes the isolation and the structural analyses of acidic polysaccharides obtained from Escherichia coli 09:K28(A):H- (K28 antigen) and Escherichia coli 09:K32(A):H19 (K32 antigen). [See Thesis for Diagram] Specific bacteriophage-borne glucanases were utilized to degrade the two Escherichia coli capsular polysaccharides. E. coli K32 polysaccharide has been degraded using a purified Φ32 bacteriophage with α-glucopyranosidase activity, while E. coli K28 polysaccharide has been degraded using crude solutions of the bacteriophages Φ 28—1 and Φ 28—2 (both with α-glucopyranosidase activity), and the results have been compared.
Gender Differences in Communication Styles and their Influence on Workplace Communication and the Practice of Public Relations in the United States
Creators: name: Reigstad, Amelia K.
Publisher: name: University of Leicester
Year: 2021
Subjects: Uncategorized

description: This thesis will examine gender differences in communication styles and their influence on workplace communication and the practice of public relations in the United States, specifically, Minneapolis and St. Paul (Twin Cities), Minnesota. In this study, existing literature is contextualized within four theoretical frameworks of public relations theory, liberal feminist theory, gender studies and power-control theory and introduces key concepts such as public relations, gender, gender communication, communication styles, feminism, power, intersectionality, social constructionism and performativity. Research questions were examined through 40 qualitative, semi-structured, in-depth interviews with public relations professionals. Results suggest that significant factors such as gender, stereotypes, communication styles and ageism influence how men and women communicate in the workplace within the public relations industry. In addition, performativity in public relations, women taking on male traits to be successful, levels of power and inequality within leadership positions, work/life balance for mothers and diversity, inclusion and intersectionality in the workplace are all significant as they pertain to the relationship between workplace communication and the practice of public relations.
Site-Controlled Telecom Single-Photon Emitters in Atomically-thin MoTe2
Creators: name: Zhao, Huan
name: Pettes, Michael T.
name: Zheng, Yu
name: Htoon, Han
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum emitters (QEs) in two-dimensional transition metal dichalcogenides (2D TMDCs) have advanced to the forefront of quantum communication and transduction research due to their unique potentials in accessing valley pseudo-spin degree of freedom (DOF) and facile integration into quantum-photonic, electronic and sensing platforms via the layer-by-layer-assembly approach. To date, QEs capable of operating in O-C telecommunication bands have not been demonstrated in TMDCs. Here we report a deterministic creation of such telecom QEs emitting over the 1080 to 1550 nm wavelength range via coupling of 2D molybdenum ditelluride (MoTe2) to strain inducing nano-pillar arrays. Our Hanbury Brown and Twiss experiment conducted at 10 K reveals clear photon antibunching with 90% single photon purity. Ultra-long lifetimes, 4-6 orders of magnitude longer than that of the 2D exciton, are also observed. Polarization analysis further reveals that while some QEs display cross-linearly polarized doublets with ~1 meV splitting resulting from the strain induced anisotropic exchange interaction, valley degeneracy is preserved in other QEs. Valley Zeeman splitting as well as restoring of valley symmetry in cross-polarized doublets are observed under 8T magnetic field. In contrast to other telecom QEs, our QEs which offer the potential to access valley DOF through single photons, could lead to unprecedented advantages in optical fiber-based quantum networks.
description: 17 pages, 4 figures
Plantas utilizadas para inducir el aborto en Igualapa, Guerrero
Creators: name: De Jesús Sánchez, Conrado Aldehir
Publisher: name: figshare
Year: 2021
Subjects: subject: 70302 Agronomy
subject: FOS: Agriculture, forestry and fisheries
subject: 70106 Farm Management, Rural Management and Agribusiness
subject: FOS: Other agricultural sciences
subject: 70199 Agriculture, Land and Farm Management not elsewhere classified

description: Introducción. Actualmente a los conocimientos tradicionales se les ha dado gran importancia, gracias a las disciplinas que recientemente se han creado para estudiar dichos conocimientos que poseen las personas sobre las plantas (etnobotánica). Igualapa (Guerrero, México) es una comunidad donde el uso de las plantas medicinales es común. Dentro de este grupo de plantas se incluye a las que inducen a provocar el aborto, sin embargo el uso adecuado de estas plantas es poco conocido, lo cual ocasiona problemas como: hemorragias, infertilidad e incluso la muerte. Método. Entre junio y agosto se realizaron entrevistas a 15 entrevistas a 3 informantes clave con edades entre 50-85 años, ellos pobladores de la comunidad de Igualapa, Guerrero, México. Se buscó ver cuál es la planta más efectiva, la parte usada, la estacionalidad y el modo de preparación.
Applications of computational invariant theory to Kobayashi hyperbolicity and to Green-Griffiths algebraic degeneracy
Creators: name: Merker, Joel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Geometry (math.AG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 13A50, 32Q45, 13P10, 13A05, 68W30, 11C20, 11C08, 14R20

description: A major unsolved problem (according to Demailly 1997) towards the Kobayashi hyperbolicity conjecture in optimal degree is to understand jet differentials of germs of holomorphic discs that are invariant under any reparametrization of the source. The underlying group action is not reductive, but we provide a complete algorithm to generate all invariants, in arbitrary dimension n and for jets of arbitrary order k. Two main new situations are studied in great details. For jets of order 4 in dimension 4, we establish that the algebra of Demailly-Semple invariants is generated by 2835 polynomials, while the algebra of bi-invariants is generated by 16 mutually independent polynomials sharing 41 groebnerized syzygies. Nonconstant entire holomorphic curves valued in an algebraic 3-fold (resp. 4-fold) X^3 in P^4 (C) (resp. X^4 in P^5(C)) of degree d satisfy global differential equations as soon as d > 71 (resp. d > 258). A useful asymptotic formula for the Euler-Poincare characteristic of Schur bundles in terms of Giambelli's determinants is derived. For jets of order 5 in dimension 2, we establish that the algebra of Demailly-Semple invariants is generated by 56 polynomials, while the algebra of bi-invariants is generated by 17 mutually independent polynomials sharing 105 groebnerized syzygies.
description: 103 pages, to appear in the Journal of Symbolic Computation
Plantas utilizadas como cercas vivas en la comunidad de Igualapa, Guerrero
Creators: name: De Jesús Sánchez, Conrado Aldehir
Publisher: name: figshare
Year: 2021
Subjects: subject: 70501 Agroforestry
subject: FOS: Agriculture, forestry and fisheries
subject: 70302 Agronomy

description: Introducción: Actualmente la disponibilidad de información sobre plantas empleadas como cercas vivas en la cabecera municipal de Igualapa es insuficiente. Por tal motivo, el objetivo de este estudio fue realizar un inventario de las especies que son utilizadas para estos fines. Metodología: El trabajo se desarrolló con base en observaciones de campo, recolecta de material botánico, entrevistas y revisión de ejemplares de herbario. Resultados y Conclusión: Se registraron 28 especies vasculares utilizadas como cercas vivas; de estas, 5 maderables y de construcción, 10 especies comestibles, 15 medicinales, 20 de uso como combustible, 12 como forraje y 3 asignadas a otras categorías de uso. Las especies con mayor uso son: Swietenia humilis, Byrsonima crassifolia, Tabebuia rosea, Enterolobium cyclocarpum, Erythrina americana y Genipa americana. Algunas de las especies presentan más de un uso. Se hace énfasis en la importancia de usar especies nativas dentro de esta práctica agroforestal por contribuir al aprovechamiento adecuado de la flora y a la conservación de la flora local.
Neutrino-driven explosions twenty years after SN1987A
Creators: name: Janka, H. -Th.
name: Marek, A.
name: Kitaura, F. -S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The neutrino-heating mechanism remains a viable possibility for the cause of the explosion in a wide mass range of supernova progenitors. This is demonstrated by recent two-dimensional hydrodynamic simulations with detailed, energy-dependent neutrino transport. Neutrino-driven explosions were not only found for stars in the range of 8-10 solar masses with ONeMg cores and in case of the iron core collapse of a progenitor with 11 solar masses, but also for a ``typical'' progenitor model of 15 solar masses. For such more massive stars, however, the explosion occurs significantly later than so far thought, and is crucially supported by large-amplitude bipolar oscillations due to the nonradial standing accretion shock instability (SASI), whose low (dipole and quadrupole) modes can develop large growth rates in conditions where convective instability is damped or even suppressed. The dominance of low-mode deformation at the time of shock revival has been recognized as a possible explanation of large pulsar kicks and of large-scale mixing phenomena observed in supernovae like SN 1987A.
description: 11 pages, 6 figures; review proceeding for "Supernova 1987A: 20 Years After: Supernovae and Gamma-Ray Bursters" AIP, New York, eds. S. Immler, K.W. Weiler, and R. McCray
Examining the Social Context of Alcohol Drinking in Young Adults with Smartphone Sensing
Creators: name: Meegahapola, Lakmal
name: Labhart, Florian
name: Phan, Thanh-Trung
name: Gatica-Perez, Daniel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: According to prior work, the type of relationship between the person consuming alcohol and others in the surrounding (friends, family, spouse, etc.), and the number of those people (alone, with one person, with a group, etc.) are related to many aspects of alcohol consumption, such as the drinking amount, location, motives, and mood. Even though the social context is recognized as an important aspect that influences the drinking behavior of young adults in alcohol research, relatively little work has been conducted in smartphone sensing research on this topic. In this study, we analyze the weekend nightlife drinking behavior of 241 young adults in Switzerland, using a dataset consisting of self-reports and passive smartphone sensing data over a period of three months. Using multiple statistical analyses, we show that features from modalities such as accelerometer, location, application usage, bluetooth, and proximity could be informative about different social contexts of drinking. We define and evaluate seven social context inference tasks using smartphone sensing data, obtaining accuracies of the range 75%-86% in four two-class and three three-class inferences. Further, we discuss the possibility of identifying the sex composition of a group of friends using smartphone sensor data with accuracies over 70%. The results are encouraging towards (a) supporting future interventions on alcohol consumption that incorporate users' social context more meaningfully, and (b) reducing the need for user self-reports when creating drink logs.
description: to appear in the proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT) - ACM UbiComp 2021
Plantas utilizadas como cercas vivas en la comunidad de Igualapa, Gurrero
Creators: name: De Jesús Sánchez, Conrado Aldehir
Publisher: name: figshare
Year: 2021
Subjects: subject: 70501 Agroforestry
subject: FOS: Agriculture, forestry and fisheries
subject: 70302 Agronomy

description: Introducción: Actualmente la disponibilidad de información sobre plantas empleadas como cercas vivas en la cabecera municipal de Igualapa es insuficiente. Por tal motivo, el objetivo de este estudio fue realizar un inventario de las especies que son utilizadas para estos fines. Metodología: El trabajo se desarrolló con base en observaciones de campo, recolecta de material botánico, entrevistas y revisión de ejemplares de herbario. Resultados y Conclusión: Se registraron 28 especies vasculares utilizadas como cercas vivas; de estas, 5 maderables y de construcción, 10 especies comestibles, 15 medicinales, 20 de uso como combustible, 12 como forraje y 3 asignadas a otras categorías de uso. Las especies con mayor uso son: Swietenia humilis, Byrsonima crassifolia, Tabebuia rosea, Enterolobium cyclocarpum, Erythrina americana y Genipa americana. Algunas de las especies presentan más de un uso. Se hace énfasis en la importancia de usar especies nativas dentro de esta práctica agroforestal por contribuir al aprovechamiento adecuado de la flora y a la conservación de la flora local.
The ambiguity-free four-dimensional Lorentz-breaking Chern-Simons action
Creators: name: Brito, F. A.
name: Nascimento, J. R.
name: Passos, E.
name: Petrov, A. Yu.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The four dimensional Lorentz-breaking finite and determined Chern-Simons like action is generated as a one loop perturbative correction via an appropriate Lorentz-breaking coupling of the gauge field with the spinor field. Unlike the known schemes of calculations, within this scheme this term is found to be regularization independent.
description: Revtex4, 4 pages
Critical Casimir force in the superfluid phase: effect of fluctuations
Creators: name: Biswas, Shyamal
name: Bhattacharjee, J. K.
name: Samanta, Himadri S.
name: Bhattacharyya, Saugata
name: Hu, Bambi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We have considered the critical Casimir force on a $^4$He film below and above the bulk $λ$ point. We have explored the role of fluctuations around the mean field theory in a perturbative manner, and have substantially improved the mean field result of Zandi et al [Phys. Rev. E {\bf 76}, 030601(R) (2007)]. The Casimir scaling function obtained by us approaches a universal constant ($-\frac{ζ(3)}{8π}$) for $T\lesssim 2.13~\text{K}$.
description: The term $\frac{1}{4b}\xi_0^4k_BT_\lambda$ at the Fig.2-caption in the published version should be read as $\frac{1}{4b\xi_0^4k_BT_\lambda}$
Enriched Music Representations with Multiple Cross-modal Contrastive Learning
Creators: name: Ferraro, Andres
name: Favory, Xavier
name: Drossos, Konstantinos
name: Kim, Yuntae
name: Bogdanov, Dmitry
Publisher: name: arXiv
Year: 2021
Subjects: subject: Sound (cs.SD)
subject: Information Retrieval (cs.IR)
subject: Multimedia (cs.MM)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Modeling various aspects that make a music piece unique is a challenging task, requiring the combination of multiple sources of information. Deep learning is commonly used to obtain representations using various sources of information, such as the audio, interactions between users and songs, or associated genre metadata. Recently, contrastive learning has led to representations that generalize better compared to traditional supervised methods. In this paper, we present a novel approach that combines multiple types of information related to music using cross-modal contrastive learning, allowing us to learn an audio feature from heterogeneous data simultaneously. We align the latent representations obtained from playlists-track interactions, genre metadata, and the tracks' audio, by maximizing the agreement between these modality representations using a contrastive loss. We evaluate our approach in three tasks, namely, genre classification, playlist continuation and automatic tagging. We compare the performances with a baseline audio-based CNN trained to predict these modalities. We also study the importance of including multiple sources of information when training our embedding model. The results suggest that the proposed method outperforms the baseline in all the three downstream tasks and achieves comparable performance to the state-of-the-art.
description: Accepted for publication to IEEE Signal Processing Letters
Studies on carbon monoxide and dioxygen binding to cytochrome P-450cam
Creators: name: Rajapakse, Nimal
Publisher: name: University of British Columbia
Year: 2010

description: Interest has remained very intense during the last two decades on the heme-containing monooxygenase system, cytochrome P-450. The P-450 hemoproteins are widely distributed in nature and engage in oxygenation of a wide variety of substrates according to the reaction, R-H + 0₂ + 2H⁺+ 2e⁻ → R-OH + H₂0 where R-H represents an unactivated carbon-hydrogen bond. Investigations on binding of small gas molecules such as CO and 0₂ to the P-450 enzymes are important not only in understanding various aspects of monooxygenation but also in developing protein-free model systems that can mimic the catalytic properties of P-450. This thesis describes gas binding studies carried out on cytochrome P-450cam. A procedure is given for growing the bacterium Pseudomonas putida strain 786 from which soluble, camphor hydroxylating P-450 enzyme is isolated and purified. The binding of CO to the stoichiometrically reduced substrate-free enzyme at different temperatures was studied using a standard spectrophotometric procedure. From these experimental data, the thermodynamic parameters ΔH⁰ and ΔS⁰ were calculated for the reaction, (P-450)Fe(II) + CO ⇌ (P-450)Fe(11)-C0 . Attempts to determine such thermodynamic parameters for the binding of dioxygen to the substrate-bound P-450 enzyme were not successful. On comparison of the determined thermodynamic parameters for the substrate-free system with the literature values for substrate-bound enzyme, hemoglobin, myoglobin and P-450 model systems, it is concluded that the substrate molecule was bonded in the immediate vicinity of the active-site thereby lowering the CO affinity to the substrate-bound system.
title: MEMORY AND DECOLONIAL PRACTICES THOUGH MAKING: A RECLAMATION OF MESTIZA IDENTITY
Creators: name: Figueroa, Valentina
Publisher: name: Emily Carr University of Art and Design
Year: 2023
Subjects: subject: Indigenous people
subject: Decolonization
subject: Memory
subject: Embroidery
subject: Metal-work

description: We have arrived at a particular moment in the history of the world where Indigenous voices, knowledges, and ways of thinking and making are beginning to be included in the conversations on value and aesthetics within the academy, the gallery space, and within art and design Institutions. With my thesis project, I am striving to put forward a decolonized and anti-capitalist approach to design and art research to have a conversation across history, one that brings forward the genealogy of traditional Indigenous art forms while also transforming them through material and conceptual innovation. At the core of this thesis is a personal exploration of the act of reclamation of my Indigeneity that is not often considered as part of a Mestizo/a identity in Colombia. Questions of gender, aesthetic classification and Indigenous identity are probed through a multi-disciplinary creative practice that resulted in my thesis exhibition. This included a series of masks made in metal (copper, bronze, and the alloy tumbaga ), a copper offering vase, a mixed media embroidery, a video of the making process of one of the masks, and a video performance in one of the sacred sites around the city of Bogotá, Colombia. This work continues a lifelong process for me as a Mestiza artist, where I have fought to reconstruct the pieces of my ancestral lineage in order to understand where I come from and my purpose as an artist and academic in today’s world.
Impact of a Faculty Development Strategy Aiming at Mitigating Erosions in a PBL-Based Medical School
Creators: name: Moreira, Livia Maria
name: Moura, Alexandre
name: Brito, Eliza
name: Junqueira, Flávia
name: Ribeiro, Ligia
Publisher: name: Journal of Problem Based Learning in Higher Education
Year: 2021

description: Problem-based learning (PBL) is an instructional method that can show erosions and failures throughout its implementation. Faculty development programs reinforcing PBL principles are essential to keep tutorial groups functioning properly. Quasi-experimental study carried out in a medical school, with a PBL curriculum. The institution has launched a faculty development program to improve tutorial performance. The program was based on the dissemination of educational material addressing five perceived erosions in tutorial groups previously identified by the tutors. Students and tutors answered a questionnaire measuring their perception on tutors’ performance, before and after faculty development. The overall mean scores of tutors’ performance has significantly increased among students when comparing pre- and post-program scores (0.19 + 0.06; p < 0.001). The study has shown that, based on students’ perspective, a faculty development program focusing on the remediation of erosions identified by the tutors can help improve tutors’ performance in different domains.
description: Journal of Problem Based Learning in Higher Education, Early view
Chemical abundances of three new Ba stars from the Keck/HIRES spectra
Creators: name: Liu, Shuai
name: Wang, Liang
name: Shi, Jian-Rong
name: Wu, Zhen-Yu
name: Yan, Hong-Liang
name: Gao, Qi
name: Li, Chun-Qian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Based on high resolution, high signal-to-noise (S/N) ratio spectra from Keck/HIRES, we have determined abundances of 20 elements for 18 Ba candidates. The parameter space of these stars are in the range of 4880 $\leq$ $\rm{T_{eff}}$ $\leq$ 6050 K, 2.56 $\leq$ log $g$ $\leq$ 4.53 dex and -0.27 $\leq$ [Fe/H] $\leq$ 0.09 dex. It is found that four of them can be identified as Ba stars with [s/Fe] $>$ 0.25 dex (s: Sr, Y, Zr, Ba, La, Ce and Nd), and three of them are newly discovered, which includes two Ba giants (HD 16178 and HD 22233) and one Ba subgiant (HD 2946). Our results show that the abundances of $α$, odd and iron-peak elements (O, Na, Mg, Al, Si, Ca, Sc, Ti, Mn, Ni and Cu) for our program stars are similar to those of the thin disk, while the distribution of [hs/ls] (hs: Ba, La, Ce and Nd, ls: Sr, Y and Zr) ratios of our Ba stars is similar to those of the known Ba objects. None of the four Ba stars show clear enhancement in carbon including the known CH subgiant HD 4395. It is found that three of the Ba stars present clear evidences of hosting stellar or sub-stellar companions from the radial velocity data.
description: Accepted for publication in RAA, 21 pages, 10 figures
Arctic Warming Impacts: Uncertainties, Implications and Prospects
Creators: name: Gao, Yongqi
Publisher: name: Zenodo
Year: 2019

description: Presentation on the results of Blue-Action at the Arctic Circle China Forum 2019, 10-11 May 2019
description: The Blue-Action project has received funding from the European Union's Horizon 2020 Research and Innovation Programme under Grant Agreement No 727852 www.blue-action.eu
Herpetacarus (Herpetacarus) alticolus
Creators: name: Stekolnikov, Alexandr A.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Trombiculidae
Herpetacarus
Herpetacarus alticolus

description: Herpetacarus (Herpetacarus) alticolus (Lawrence, 1951)
Ascoschoengastia alticola Lawrence, 1951: 114, fig. 16a.
Euschoengastia alticola – Wharton & Fuller 1952: 73. — Zumpt 1961: 161.
Herpetacarus (Herpetacarus) alticola – Vercammen-Grandjean 1965c: 86; 1966: 635, pl. F1.
Syntypes
NMSA 4947.
Distribution
South Africa (Champagne Castle).
Hosts
Crocidura flavescens, Rhabdomys pumilio.
description: Published as part of Stekolnikov, Alexandr A., 2018, Taxonomy and distribution of African chiggers (Acariformes, Trombiculidae), pp. 1-233 in European Journal of Taxonomy 395 on pages 65-66, DOI: 10.5852/ejt.2018.395, http://zenodo.org/record/3829724
Analysis of modern astrometric catalogues in the Gaia era
Creators: name: Akhmetov, V. S.
name: Fedorov, P. N.
name: Tsvetkova, V. S.
name: Bannikova, E. Yu.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate of the systems of proper motions of stars in the ground-based catalogues HSOY, UCAC5, GPS1 and PMA derived by combining with the Gaia DR1 space data. Assuming the systematic differences of stellar proper motions of two catalogues to be caused by the mutual solid-body rotation and glide of the coordinate systems produced by the data of the catalogues under comparison, we analyse the components of the mutual rotation vector and displacement of the origins of these systems. The equatorial components of the vector of mutual rotation velocity of the compared coordinate systems, as well as velocities of the mutual displacement of their origins, varying within the range from 0.2 to 2.9 mas/yr, were derived from a comparison of proper motions of the sources that are common for Gaia EDR3 and the TGAS, UCAC5, HSOY, GPS1 and PMA catalogues, respectively. The systematic errors of proper motions of stars in the HSOY, GPS1, PMA and Gaia EDR3 catalogues in the range of faint stellar magnitudes were estimated by analysing the formal proper motions of extragalactic objects contained in these catalogues. The coordinate system realised by the Gaia EDR3 data at the level of < 0.1 mas/yr is shown to have no rotation and glide relative to the LQAC-5, ALLWISEAGN, Milliquas extragalactis sources within the range from 15 to 21 stellar G magnitude. Among the ground-based catalogues, the system of proper motions of the PMA stars, which is independent of the Gaia EDR3 data, is the closest to the Gaia EDR3 system of proper motions in G magnitude range from 15 to 21.
Spin-textured Chern bands in AB-stacked transition metal dichalcogenide bilayers
Creators: name: Zhang, Yang
name: Devakul, Trithep
name: Fu, Liang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: While transition metal dichalcogenide (TMD) based moire materials have been shown to host various correlated electronic phenomena, topological states have not been experimentally observed until now. In this work, using first principles calculations and continuum modeling, we reveal the displacement field induced topological moire bands in AB-stacked TMD heterobilayer MoTe2/WSe2. Valley contrasting Chern bands with non-trivial spin texture are formed from interlayer hybridization between MoTe2 and WSe2 bands of nominally opposite spins. Our study establishes a recipe for creating topological bands in AB stacked TMD bilayers in general, which provides a highly tunable platform for realizing quantum spin Hall and interaction induced quantum anomalous Hall effects.
description: 6 pages, 6 figures. Accepted at PNAS
Quark model analysis of the Weinberg operator contribution to the nucleon EDM
Creators: name: Yamanaka, Nodoka
name: Hiyama, Emiko
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The Weinberg operator (chromo-electric dipole moment of gluon) is a CP violating quantity generated in many candidates of new physics beyond the standard model, and it contributes to observables such as the electric dipole moments (EDM) of the neutron or atoms which are currently measured in experiments. In this proceedings contribution, we report on our result of the evaluation of the Weinberg operator contribution to the nucleon EDM in the nonrelativistic quark model using the Gaussian expansion method.
description: 6 pages, 3 figures, proceedings of the 8th Asia-Pacific conference on Few-Body problems in Physics (APFB2020), Kanazawa, Japan, March 2021
Spectroscopic Investigation of Light Strange S=-1 $Λ$, $Σ$ and S=-2 $Ξ$ Baryons
Creators: name: Menapara, Chandni
name: Rai, Ajay Kumar
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The present study is dedicated to light-strange $Λ$ with strangeness S=-1, isospin I=0; $Σ$ with S=-1, I=1 and $Ξ$ baryon with S=-2 and $I=\frac{1}{2}$. In this article, hypercentral Constituent Quark Model with linear confining potential has been employed along with first order correction term to obtain the resonance masses for nearly upto 4 GeV. The calculated states include 1S-5S, 1P-4P, 1D-3D, 1F-2F and 1G (in few case) along with all the possible spin-parity assignments. Regge Trajectories have been explored for the linearly of the calculated masses for $(n,M^{2})$ and $(J,M^{2})$ respectively. Magnetic moments have been intensively studied for ground state spin $\frac{1}{2}$ and $\frac{3}{2}$, in addition to the configuration mixing for first negative parity state for $Ξ$. Lastly, transition magnetic moment and radiative decay width have been presented.
description: 25 pages, 8 figures, Accepted for the publication in Chinese Physics C
Wave packet dynamics in 2DEG with spin orbit coupling: splitting and zitterbewegung
Creators: name: Demikhovskii, V. Ya.
name: Maksimova, G. M.
name: Frolova, E. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the effect of splitting and zitterbewegung of 1D and 2D electron wave packets in the semiconductor quantum well under the influence of the Rashba spin orbit coupling. Results of our investigations show that the spin orbit interaction induces dramatic qualitative changes in the evolution of spin polarized wave packet. The initial wave packet splits into two parts with different spin polarization propagating with unequal group velocity. This splitting appears due to the presence of two branches of electron spectrum corresponding to the stationary states with different chirality. It is demonstrated also that in the presence of external magnetic field B$ perpendicular to the electron gas plane the wave packet splits into two parts which rotates with different cyclotron frequencies. It was shown that after some periods the electron density distributes around cyclotron orbit and the motion acquire an irregular character. Our calculations were made for both cases of weak and strong spin orbit coupling.
description: 11 pages, 6 figures
Possibility of superradiant phase transitions in coupled two-level atoms
Creators: name: Liu, Tao
name: Zhang, Yu-Yu
name: Chen, Qing-Hu
name: Wang, Ke-Lin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Although the oscillator strength sum rule forbids the phase transition in ideal non-interacting two-level atoms systems, we present the possibility of the quantum phase transition in the coupled two-level atoms in a cavity. The system undergoes the superradiant phase transition in the thermodynamics limit and this transition is account for the atom-atom attractive interaction, exhibiting a violation of the sum rule. The bosonic coherent state technique has been adopted to locate the quantum critical point accurately in the finite-size system. We predict the existence of the superadiant phase transition as the number of atoms increases, satisfying all the constraints imposed by the sum rule.
description: 4pages,3 figures