cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nature-Inspired Optimization Algorithms: Challenges and Open Problems
Creators: name: Yang, Xin-She
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 90C26, 92B20

description: Many problems in science and engineering can be formulated as optimization problems, subject to complex nonlinear constraints. The solutions of highly nonlinear problems usually require sophisticated optimization algorithms, and traditional algorithms may struggle to deal with such problems. A current trend is to use nature-inspired algorithms due to their flexibility and effectiveness. However, there are some key issues concerning nature-inspired computation and swarm intelligence. This paper provides an in-depth review of some recent nature-inspired algorithms with the emphasis on their search mechanisms and mathematical foundations. Some challenging issues are identified and five open problems are highlighted, concerning the analysis of algorithmic convergence and stability, parameter tuning, mathematical framework, role of benchmarking and scalability. These problems are discussed with the directions for future research.
description: 15 pages
Physarum bethelii T. Macbr. ex G. Lister 1911
Creators: name: Kryvomaz, Tetiana
name: Michaud, Alain
name: Stephenson, Steven L.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Fungi
Mycetozoa
Myxomycetes
Physarales
Physaraceae
Physarum
Physarum bethelii

description: * Physarum bethelii T. Macbr. ex G. Lister (2 FC, 1 loc, 1 ps)
 Loc. 7 Mahé: On dead stem of palm Phoenicophorium borsigianum, AM 3099, TK2914 (2FC) det. MM47935.
description: Published as part of Kryvomaz, Tetiana, Michaud, Alain & Stephenson, Steven L., 2020, Myxomycete biodiversity on five islands of the Seychelles, pp. 201-244 in Zootaxa 4851 (2) on page 235, DOI: 10.11646/zootaxa.4851.2.1, http://zenodo.org/record/4407410
title: Withholding communication - a relational approach to silence in an inter-organisational project group in the UK
Creators: name: Mumford, Clare
Publisher: name: The Open University
Year: 2015

description: This thesis takes an exploratory look at the phenomenon of silence in the ethnographic setting of an inter-organisational project, to review how project group members talk about their own practice of silence within the ongoing process of project delivery. The research swaps a transmission model of communication, which has been used in much of the previous work on silence in the field of organisational behaviour, for a dialogic model of communication, which prioritises temporal contingency and local processes of meaning-making in order to explore how participants develop the social significance of silence. Firstly, the thesis shows how participants discursively construct silence as an emergent phenomenon connected with the development and maintenance of social relationships through the lifecycle of the project. I identify three common-sense storylines (Davies and Harré, 1990) - each with a different underpinning logic: of relating, of representing, and of doing - which provide discursive resources by means of which participants position their practice of silence within the management of different types of relationship. Secondly, the thesis covers how silence emerges in various forms over the course of the project lifecycle: as discrete acts of withholding but also as outcomes of other processes of social interaction. What emerges from the use of a dialogic model of communication is a potential new approach to silence in organising processes, which focuses less on silence as a discrete entity produced by an agentic individual and more on its temporal and embodied features in a way that may help to integrate some of the diverse organisational and management perspectives on the topic.
Project Management Volume, Velocity, Variety: A Big Data Dynamics Approach
Creators: name: Kockum, Fredrik
name: Dacre, Nicholas
Publisher: name: figshare
Year: 2021
Subjects: subject: 120201 Building Construction Management and Project Planning
subject: FOS: Civil engineering
subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences
subject: 80199 Artificial Intelligence and Image Processing not elsewhere classified
subject: 80604 Database Management
subject: 80403 Data Structures
subject: 100504 Data Communications
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 80499 Data Format not elsewhere classified

description: Cite this Paper:Kockum, F, & Dacre, N. (2020). Project Management Volume, Velocity, Variety: A Big Data Dynamics Approach. Advanced Project Management, 21(1). https://doi.org/10.6084/m9.figshare.14330234
AbstractThe era of Big Data has provided business organisations opportunities to improve their management processes. This developmental paper is adopting a mixed-method research approach where qualitative data will underpin a quantitative questionnaire. The early insights are based on an initial eleven qualitative interviews and conceptualised in the following three statements: (i) Project practitioners need to increase their data literacy; (ii) Project practitioners are not utilising the available Big Data based on the 3 Vs; Volume, Velocity and Variety; (iii) Project practitioners need to utilise the structured available data to augment the decision-making process to represent the complex environment of Big Data, the study adopts Complexity Theory as a theoretical framework. When completed, the research will demonstrate the results through System Dynamics modelling.
SL(2) spin chain and spinning strings on AdS_5xS^5
Creators: name: Bellucci, S.
name: Casteill, P. -Y.
name: Morales, J. F.
name: Sochichiu, C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive the coherent state representation of the integrable spin chain Hamiltonian with symmetry group SL(2,R). By passing to the continuum limit, we find a spin chain sigma model describing a string moving on the hyperboloid SL(2,R)/U(1). The same sigma model is found by considering strings rotating with large angular momentum in AdS_5xS^5. The spinning strings are identified with semiclassical coherent states built out of SL(2,R) spin chain states.
description: 18 pages, 1 fig, References added. Earlier results in [38] are pointed out
The distribution of dark galaxies and spin bias
Creators: name: Jimenez, Raul
name: Heavens, Alan F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In the light of the discovery of numerous (almost) dark galaxies from the ALFALAFA and LITTLE THINGS surveys, we revisit the predictions of Jimenez et al. 1997, based on the Toomre stability of rapidly-spinning gas disks. We have updated the predictions for $Λ$CDM with parameters given by Planck18, computing the expected number densities of dark objects, and their spin parameter and mass distributions. Comparing with the data is more challenging, but where the spins are more reliably determined, the spins are close to the threshold for disks to be stable according to the Toomre criterion, where the expected number density is highest, and reinforces the concept that there is a bias in the formation of luminous galaxies based on the spin of their parent halo.
description: matches published version in MNRAS Letters; theoretical model improved, results unchanged
Numerical test of Polyakov loop models in high temperature SU(2)
Creators: name: Fiore, Roberto
name: Giudice, Pietro
name: Papa, Alessandro
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study the compatibility of effective mean-field models of the Polyakov loop for the deconfined phase of SU(N) pure gauge theories with lattice data obtained for the case of SU(2), in the temperature range T_c - 4.8 T_c.
description: Poster presented at Lattice2004(non-zero), Fermilab, June 21-26, 2004; 3 pages, 4 figures, uses espcrc2.sty
title: Exploring an Exam-Practice Approach to Teaching Academic Reading and Writing in China: Teacher Perspectives and Materials Analysis
Creators: name: Terrett, Matthew Andrew
Publisher: name: The Open University
Year: 2014

description: This study explores teacher perceptions of an approach to teaching academic reading and writing that focuses on local English for Academic Purposes (EAP) exams (the Exam-Practice Approach) and presents a textual analysis of the teaching materials. The research context is the EAP component of an international foundation year programme for undergraduate students embarking on Business or Engineering pathways at a British university operating in China. Semi-structured interviews were conducted with English teachers and analysed thematically. This data was enhanced through participant observation, documentary evidence and a survey. Findings indicate concerns regarding the separation of academic reading and writing skills, and a mismatch between course aims and assessment. Contextual factors influencing the development of the local EAP programme are identified and concerns are raised over a perceived lack of purpose in teachers’ professional roles. Corpora were constructed from the reading input in the EAP materials divided according to the students’ disciplinary studies (Business and Engineering) and a keyword analysis conducted using the British Academic Written English (BAWE) reference corpus. This was supported through the manual analysis of rhetorical functions in reading materials. Findings indicate that the reading input does not provide a coherent model of target situation writing and that the local academic reading materials contain language features that directly contradict local writing instruction. The primary implication of the findings of this study for pedagogical and professional practice is that course assessment can greatly influence the development of an English for Academic Purposes programme. Focus on English-language test practice risks alienating teachers and reinforcing a deficit model of Chinese students. The purpose of the EAP programme therefore needs to be clear and assessment should reflect that purpose.
Convergence of continuous-time quantum walks on the line
Creators: name: Gottlieb, Alex D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The position density of a "particle" performing a continuous-time quantum walk on the integer lattice, viewed on length scales inversely proportional to the time t, converges (as t tends to infinity) to a probability distribution that depends on the initial state of the particle. This convergence behavior has recently been demonstrated for the simplest continuous-time random walk [see quant-ph/0408140]. In this brief report, we use a different technique to establish the same convergence for a very large class of continuous-time quantum walks, and we identify the limit distribution in the general case.
description: Version to appear in Phys. Rev. E
Time Evolution of Hadronization and Grey Tracks in DIS off Nuclei
Creators: name: Atti, C. Ciofi degli
name: Kopeliovich, B. Z.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The analysis of the grey tracks produced in Deep Inelastic Scattering (DIS) off nuclei provides important information on the space-time development of hadronization in nuclear medium. This method is complementary to the measurement of nuclear attenuation of leading inclusive hadrons. While the latter is focused on the hadronization dynamics for the quite rare process of leading hadrons production, the former covers the main bulk of inelastic events, and its Q^2 dependence is a very sensitive tool to discriminate between different models of hadronization. Employing the model of perturbative hadronization developed earlier, we calculate the Q^2 and x_{Bj} dependences of the number of collisions and relate it to the mean number of grey tracks, using an empirical relation obtained from the analysis of data from the Fermilab E665 experiment on DIS of muons off the Xe nucleus. We found the number of grey tracks to rise steeply with Q^2 in good agreement with the experimental data.
description: 10 pages, 2 figures
title: Adaptive Music Generation for Computer Games
Creators: name: Prechtl, Anthony
Publisher: name: The Open University
Year: 2016

description: This dissertation explores a novel approach to game music that addresses the limitations of conventional game music systems in supporting a dynamically changing narrative. In the proposed approach, the music is generated automatically based on a set of variable input parameters corresponding to emotional musical features. These are then tied to narrative parameters in the game, so that the features and emotions of the music are perceived to continuously adapt to the game's changing narrative. To investigate this approach, an algorithmic music generator was developed which outputs a stream of chords based on several input parameters. The parameters control different aspects of the music, including the transition matrix of a Markov model used to stochastically generate the chords, and can be adjusted continuously in real time. A tense first-person game was then configured to control the generator's input parameters to reflect the changing tension of its narrative---for example, as the narrative tension of the game increases, the generated music becomes more dissonant and the tempo increases. The approach was empirically evaluated primarily by having participants play the game under a variety of conditions, comparing them along several subjective dimensions. The participants' skin conductance was also recorded. The results indicate that the condition with the dynamically varied music described above was both rated and felt as the most tense and exciting, and, for participants who said they enjoy horror games and films, also rated as the most preferable and fun. Another study with music experts then demonstrated that the proposed approach produced smoother musical transitions than crossfades, the approach conventionally used in computer games. Overall, the findings suggest that dynamic music can have a significant positive impact on game experiences, and that generating it algorithmically based on emotional musical features is a viable and effective approach.
Quantum State Tomography with Conditional Generative Adversarial Networks
Creators: name: Ahmed, Shahnawaz
name: Muñoz, Carlos Sánchez
name: Nori, Franco
name: Kockum, Anton Frisk
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Quantum state tomography (QST) is a challenging task in intermediate-scale quantum devices. Here, we apply conditional generative adversarial networks (CGANs) to QST. In the CGAN framework, two duelling neural networks, a generator and a discriminator, learn multi-modal models from data. We augment a CGAN with custom neural-network layers that enable conversion of output from any standard neural network into a physical density matrix. To reconstruct the density matrix, the generator and discriminator networks train each other on data using standard gradient-based methods. We demonstrate that our QST-CGAN reconstructs optical quantum states with high fidelity orders of magnitude faster, and from less data, than a standard maximum-likelihood method. We also show that the QST-CGAN can reconstruct a quantum state in a single evaluation of the generator network if it has been pre-trained on similar quantum states.
description: 5 pages, 5 figures, code will be available at https://github.com/quantshah/qst-cgan; v2: minor updates; see also the companion paper arXiv:2012.02185
Physarum bogoriense Racib.
Creators: name: Kryvomaz, Tetiana
name: Michaud, Alain
name: Stephenson, Steven L.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Fungi
Mycetozoa
Myxomycetes
Physarales
Physaraceae
Physarum
Physarum bogoriense

description: Physarum bogoriense Racib. (8 FC, 6 loc, 4 ps)
 Loc. 7 Mahé: On fallen leaves of Tabebuia pallida, AM 3105, TK2921 (2FC). Loc. 37-l La Digue: On fallen leaf of Cinnamomum verum, AM 3178, TK2677. Loc. 37g La Digue: On fallen leaves of Calophyllum inophyllum, AM2862, TK2380 (2FC). On fallen leaves of Cinnamomum verum, AM2869, TK2393. Loc. 37m La Digue: On fallen leaves of Cinnamomum verum, AM2871, TK2396. Loc. 39a La Digue: On fallen leaves of Terminalia catappa, AM 3213, TK2759.
description: Published as part of Kryvomaz, Tetiana, Michaud, Alain & Stephenson, Steven L., 2020, Myxomycete biodiversity on five islands of the Seychelles, pp. 201-244 in Zootaxa 4851 (2) on pages 235-236, DOI: 10.11646/zootaxa.4851.2.1, http://zenodo.org/record/4407410
Unitary model for the $γp \to γπ^0 p$ reaction and the magnetic dipole moment of the $Δ^+(1232)$
Creators: name: Chiang, W. -T.
name: Vanderhaeghen, M.
name: Yang, S. N.
name: Drechsel, D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Radiative pion photoproduction in the $Δ(1232)$ resonance region is studied with the aim to access the $Δ^+(1232)$ magnetic dipole moment. We present a unitary model of the $γp \to γπN$ ($πN = π^0 p, π^+ n$) reactions, where the $πN$ rescattering is included in an on-shell approximation. In this model, the low energy theorem which couples the $γp \to γπN$ process in the limit of a soft final photon to the $γp \to πN$ process is exactly satisfied. We study the sensitivity of the $γp \to γπ^0 p$ process at higher values of the final photon energy to the $Δ^+(1232)$ magnetic dipole moment. We compare our results with existing data and give predictions for forthcoming measurements of angular and energy distributions. It is found that the photon asymmetry and a helicity cross section are particularly sensitive to the $Δ^+$ magnetic dipole moment.
description: 23 pages, 18 figures
title: Automated detection of reflection in texts. A machine learning based approach
Creators: name: Ullmann, Thomas Daniel
Publisher: name: The Open University
Year: 2015

description: Promoting reflective thinking is an important educational goal. A common educational practice is to provide opportunities for learners to express their reflective thoughts in writing. The analysis of such text with regard to reflection is mainly a manual task that employs the principles of content analysis. Considering the amount of text produced by online learning systems, tools that automatically analyse text with regard to reflection would greatly benefit research and practice. Previous research has explored the potential of dictionary-based approaches that automatically map keywords to categories associated with reflection. Other automated methods use manually constructed rules to gauge insight from text. Machine learning has shown potential for classifying text with regard to reflection-related constructs. However, not much is known of whether machine learning can be used to reliably analyse text with regard to the categories of reflective writing models. This thesis investigates the reliability of machine learning algorithms to detect reflective thinking in text. In particular, it studies whether text segments from student writings can be analysed automatically to detect the presence (or absence) of reflective writing model categories. A synthesis of the models of reflective writing is performed to determine the categories frequently used to analyse reflective writing. For each of these categories, several machine learning algorithms are evaluated with regard to their ability to reliably detect reflective writing categories. The evaluation finds that many of the categories can be predicted reliably. The automated method, however, does not achieve the same level of reliability as humans do.
Quantum fluctuation of entanglement for accelerated two-level detectors
Creators: name: Zhang, Sixuan
name: Liu, Tonghua
name: Cao, Shuo
name: Liu, Yuting
name: Geng, Shuaibo
name: Lian, Yujie
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum entanglement as the one of the most general quantum resources, can be quantified by von Neumann entropy. However, as we know, the von Neumann entropy is only statistical quantity or operator, it therefore has fluctuation. The quantum fluctuation of entanglement (QFE) between Unruh-Dewitt detector modeled by a two-level atom is investigated in a relativistic setting. The Unruh radiation and quantum fluctuation effects affect the precise measurement of quantum entanglement. Inspired by this we present how the relativistic motion effects QFE for two entangled Unruh-Dewitt detectors when one of them is accelerated and interacts with the neighbor external scalar field. We find that QFE first increases by the Unruh thermal noise and then suddenly decays when the acceleration reaches at a considerably large value, which indicates that relativistic effect will lead to non-negligible QFE effect. We also find that the initial QFE (without acceleration effect) is minimum with the maximally entangled state. Moreover, although QFE has a huge decay when the acceleration is greater than $\sim0.96$, concurrence also decays to a very low value, the ratio $ΔE/C$ therefore still large. According to the equivalence principle, our findings could be in principle applied to dynamics of QFE under the influence of gravitation field.
description: 3 figures, 6 pages, accepted for publication in Chinese Physics B
Predictors of analogue intrusive thoughts : a structural equation model
Creators: name: Regambal, Marci Joan
Publisher: name: University of British Columbia
Year: 2010

description: Structural equation modeling was used to examine the prediction of intrusive thoughts from the theoretically proposed pathways in the Ehlers and Clark model (Behav. Res. Ther., 38 (2000) 319), and to examine the interface of emotion and preexisting vulnerability factors with the cognitive processes considered central to the model. Using a prospective design, 148 undergraduate students viewed a distressing film and recorded their film-related intrusive thoughts over the following week. The results indicated that a preexisting emotional vulnerability factor (i.e., trait anxiety and depression), predicted dysfunctional processing (i.e., dissociation and data-driven processing). Furthermore, emotional reactivity and dysfunctional coping strategies (i.e., rumination, thought suppression, and the use of safety behaviours) directly predicted intrusive thoughts. The observed model was consistent with Ehlers and Clark’s proposed model, placing it in a broader context. Implications for the interface of these factors are discussed.
Social Work, Public Health, Community Medicine
Creators: name: Tridibesh T.
name: R Mauricio B. P
name: Shankar D.
name: D.P. Singh
name: Rakesh D.
name: Mohini G.
name: Ranvijay S.
name: Anjali M.
name: Hareem N.
Publisher: name: gjrpublication
Year: 2024

description: The current article focuses on a triad. The components of the triad are ‘Social Work’, ‘Public Health’ & ‘Community Medicine’. Health is a basic need through which any community’s development is done. Through the concept of public health, the basics of Social Work (SW) are detailed out & commonalities are evolved. On the other hand, under the umbrella of public health, the concept of community medicine emerged. There is actually bilateral traffic among the triad. The concept of social work & community medicine is closely interrelated in the domain of public health. The article cites examples of community medicine through the lens of social work that are embedded in the context of public health. The article also aspires that the beginners of social science will be able to develop a comprehensive understanding of the triangle that comprises of the three branches of community development.
title: Integrating English as a Foreign Language in Austrian primary schools: contextual and participant perspectives
Creators: name: Millonig, Diana Jean
Publisher: name: The Open University
Year: 2015

description: Government guidelines in Austria specify that first and second year primary school pupils (age 6-8 years old) should receive their first teaching of a foreign language integrated into the syllabus subjects. The present study, embedded in the theoretical framework of social constructivist learning and socio-cultural language learning theories, investigated the actual classroom practices of Austrian primary school teachers during the integration of English into the lessons. The main research question ‘How is English as a foreign language taught in the first two years of Austrian primary schools?' required consideration of both the context and the participants and aligned three perspectives: context, teachers and pupils. From the contextual perspective, government legislation and guidance, teacher training institutions, and school management are significant. They influence some aspects of the individual teachers’ competences and attitudes, which in turn affect her or his teaching goals, lesson planning, time allocated to English and other subjects, and choice of classroom activities. The other key participants are the children themselves and their perspective on English learning in the classroom. Setting out to observe foreign language teaching/learning in Austrian primary schools, the study actually identified a number of disparities in processes and perceptions, and raised questions about how English integration is translated into effective classroom practice. Set in the framework of qualitative mixed methods study design, with data drawn from a combination of case study ethnographic classroom observations, a small scale survey, interviews with academics and teachers, pupil picture questionnaires, documentary evidence and innovative qualitative data elicitation methods adapted to young children, the findings of this study reveal that there is a mismatch between government expectations, teacher training, school policies, and actual teaching practice.
Voltage-Induced Inertial Domain Wall Motion in an Antiferromagnetic Nanowire
Creators: name: Chen, Fa
name: Zhang, Zhendong
name: Luo, Wei
name: Yang, Xiaofei
name: You, Long
name: Zhang, Yue
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Racetrack memory based on magnetic domain walls (DWs) motion exhibits advantages of small volume and high reading speed. When compared to current-induced DW motion, voltage-induced DW motion exhibits lower dissipation. On the other hand, the DW in an antiferromagnet (AFM) moves at a high velocity with weak stray field. In this work, the AFM DW motion induced by a gradient of magnetic anisotropy energy under a voltage pulse has been investigated in theory. The dynamics equation for the DW motion was derived. The solution indicates that the DW velocity is higher than 100 m/s, and because of inertia, the DW is able to keep moving at a speed of around 100 m/s for several nano seconds after turning off the voltage in a period of pulse. The mechanism for this DW inertia is explained based on the Lagrangian route. On the other hand, a spin wave is emitted while the DW is moving, yet the DW is still able to move at an ever increasing velocity with enlarging DW width. This indicates energy loss from emission of spin wave is less than the energy gain from the effective field of the gradient of anisotropy energy.
Evidence for s-wave superconductivity in the new beta-pyrochlore oxide RbOs2O6
Creators: name: Magishi, K.
name: Gavilano, J. L.
name: Pedrini, B.
name: Hinderer, J.
name: Weller, M.
name: Ott, H. R.
name: Kazakov, S. M.
name: Karpinski, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the results of 87Rb NMR measurements on RbOs2O6, a new member of the family of the superconducting pyrochlore-type oxides with a critical temperature Tc = 6.4 K. In the normal state, the nuclear spin-lattice relaxation time T1 obeys the Korringa-type relation T1T = constant and the Knight shift is independent of temperature, indicating the absence of strong magnetic correlations. In the superconducting state, T1^{-1}(T) exhibits a tiny coherence enhancement just below Tc, and decreases exponentially with further decreasing temperatures. The value of the corresponding energy gap is close to that predicted by the conventional weak-coupling BCS theory. Our results indicate that RbOs2O6 is a conventional s-wave-type superconductor.
description: 5 pages, 5 figures, submitted to Phys. Rev. B
Predictions of quantum gravity in inflationary cosmology: effects of the Weyl-squared term
Creators: name: Anselmi, Damiano
name: Bianchi, Eugenio
name: Piva, Marco
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We derive the predictions of quantum gravity with fakeons on the amplitudes and spectral indices of the scalar and tensor fluctuations in inflationary cosmology. The action is $R+R^{2}$ plus the Weyl-squared term. The ghost is eliminated by turning it into a fakeon, that is to say a purely virtual particle. We work to the next-to-leading order of the expansion around the de Sitter background. The consistency of the approach puts a lower bound ($ m_{χ}>m_{ϕ}/4$) on the mass $m_{χ}$ of the fakeon with respect to the mass $m_{ϕ}$ of the inflaton. The tensor-to-scalar ratio $r$ is predicted within less than an order of magnitude ($4/3
description: 39 pages, 1 figure; v2: minor changes, JHEP
Physarum cinereum Pers.
Creators: name: Kryvomaz, Tetiana
name: Michaud, Alain
name: Stephenson, Steven L.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Fungi
Mycetozoa
Myxomycetes
Physarales
Physaraceae
Physarum
Physarum cinereum

description: Physarum cinereum (Batsch) Pers. (1 MC, 1 loc, 1 ps)
 Loc. 35 La Digue: On stems of living climber liana Epipremnum pinnatum, AM 3899 (MC 113), TK2419.
description: Published as part of Kryvomaz, Tetiana, Michaud, Alain & Stephenson, Steven L., 2020, Myxomycete biodiversity on five islands of the Seychelles, pp. 201-244 in Zootaxa 4851 (2) on page 236, DOI: 10.11646/zootaxa.4851.2.1, http://zenodo.org/record/4407410
برامج تنمية الثروة السمكية فى البلاد العربية
Creators: name: Soliman, Ibrahim
name: El Refaee Baioumy, Ahmed
name: Soliman, Ibrahim
name: El Refaee Baioumy, Ahmed
Publisher: name: Unknown
Year: 1979
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Marketing
subject: FOS: Economics and business
subject: Production Economics
subject: Public Economics
subject: Programs of fisheries development in the Arab country
subject: fisheries development
subject: the Arab country

description: Food Security Programme in the Arab countries, the Arab Organization for Agricultural Development, the Arab League, in June 1979 Cairo
PCAC and Shadowing of Low Energy Neutrinos
Creators: name: Kopeliovich, B. Z.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The Adler relation between reactions initiated by neutrinos and pions is easy to misinterpret as a manifestation of the pion pole dominance. An axial current, however, cannot fluctuate into a pion, but only to heavy axial-vector states, since the lepton current is transverse. This is the miracle of the PCAC hypothesis which dictates a specific conspiracy between the heavy fluctuations, so that all together they mock the pion pole. Indeed, the observed Q^2 dependence of the axial form factor is controlled by the effective mass m_A \sim 1 GeV, rather than the pion mass. On the contrary, the onset of nuclear shadowing is governed by the small pion mass, rather than by the large axial mass scale. This is in variance with the conventional wisdom which equates the fluctuation lifetime and the coherence time. For the case of axial current they are different by almost two orders of magnitude. As a result, neutrino interactions are shadowed at very low energies of few hundred MeV, while energy of about 10 GeV is needed to access nuclear shadowing for the vector current. On the contrary to naive expectations, nuclear absorption enhances, rather than suppresses the cross section of coherent neutrino-production of pions which is the strongest channel (half of the total cross section) in the black disc limit.
description: 6 pages, 5 figures. Invited talk at NUINT04,Gran Sasso, March 17-21, 2004
title: Learning to use melodic similarity and contrast for narrative using a Digital Tabletop Musical Interface
Creators: name: Franceschini, Andrea
Publisher: name: The Open University
Year: 2016

description: This thesis investigates Digital Tabletop Musical Interfaces (DTMIs) in the context of music education. Digital tabletops have emerged in recent years, surrounded by much enthusiasm, and have found applications in a diversity of fields – from museum installations to engineering applications, from information systems, to music making. In particular, their ability to create a link between the physical and virtual world makes the digital tabletop an excellent way for beginners to approach music making. By allowing users to “touch” music, and experience it through various visual representations, in addition to its aural representation, digital tabletops provide an intuitively approachable way of making music that supports both beginners and experts, and allows them to collaborate and exchange knowledge and ideas. However, we still know little about the challenges and opportunities that DTMIs present, particularly their role in supporting music education. This thesis explores the challenges and opportunities presented by a bespoke DTMI in supporting people of different levels of musical experience in learning about some fundamental musical notions, and in learning how these can be used to compose music in an intentional way. This thesis covers three exploratory studies. In the first one, the notion of melodic contour, and its role as a visual metaphor for describing music, were explored by participants. A music composition task to describe a painting with music was presented to participants, and the ways in which participants described and composed music, in relation to melodic contour, were analysed. In the second study, the notions of melodic similarity and contrast, and their role in suggesting narrative, were explored by participants. Through a series of discussions and practical exercises, participants developed their understanding of melodic similarity and contrast, and learned how to use these notions to suggest narrative in melody. The third study followed directly from the second one, exploring again melodic similarity and contrast, but this time in a group setting. Groups of participants explored the musical notions using the DTMI as a discussion mediator. In these last two studies, the ways in which participants discussed the notions, and used them to compose music that suggested a narrative, were analysed. The findings suggest that it is possible to appropriately design a DTMI that can be used by both musically experienced and inexperienced people in order to create music in a way that is graspable for the novice, yet expressive for the expert, so that the two can discuss music with equal ease, and learn more about it.
Fast Mapping onto Census Blocks
Creators: name: Kepner, Jeremy
name: Kipf, Andreas
name: Engwirda, Darren
name: Vembar, Navin
name: Jones, Michael
name: Milechin, Lauren
name: Gadepally, Vijay
name: Hill, Chris
name: Kraska, Tim
name: Arcand, William
name: Bestor, David
name: Bergeron, William
name: Byun, Chansup
name: Hubbell, Matthew
name: Houle, Michael
name: Kirby, Andrew
name: Klein, Anna
name: Mullen, Julie
name: Prout, Andrew
name: Reuther, Albert
name: Rosa, Antonio
name: Samsi, Sid
name: Yee, Charles
name: Michaleas, Peter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Databases (cs.DB)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: Pandemic measures such as social distancing and contact tracing can be enhanced by rapidly integrating dynamic location data and demographic data. Projecting billions of longitude and latitude locations onto hundreds of thousands of highly irregular demographic census block polygons is computationally challenging in both research and deployment contexts. This paper describes two approaches labeled "simple" and "fast". The simple approach can be implemented in any scripting language (Matlab/Octave, Python, Julia, R) and is easily integrated and customized to a variety of research goals. This simple approach uses a novel combination of hierarchy, sparse bounding boxes, polygon crossing-number, vectorization, and parallel processing to achieve 100,000,000+ projections per second on 100 servers. The simple approach is compact, does not increase data storage requirements, and is applicable to any country or region. The fast approach exploits the thread, vector, and memory optimizations that are possible using a low-level language (C++) and achieves similar performance on a single server. This paper details these approaches with the goal of enabling the broader community to quickly integrate location and demographic data.
description: 8 pages, 7 figures, 55 references; accepted to IEEE HPEC 2020
title: Radverkehrsführung in Kreisverkehrsanlagen
Creators: name: Staneva, Evelina
Publisher: name: TU Wien
Year: 2016
Subjects: subject: Radverkehrsführung

description: Die vorliegende Arbeit befasst sich mit jenen Faktoren und deren Einflussgrößen, die die Qualität der Führung des Radverkehrs an Kreisverkehrsplätze bewirken. Das Hauptaugenmerk wird dabei auf die subjektive und objektive Qualität der Verkehrssicherheit gelegt. Zu diesem Ziel wird zunächst eine Literaturrecherche der internationalen Fachliteratur zu den Themen 'Radverkehr im Kreisverkehr' und 'Verkehrssicherheit' vorgestellt. Für die Analyse des örtlichen Unfallgeschehens wurden 14 Kreisverkehrsanlagen in Grenzen des Bundeslandes Niedeösterreich mit unterschiedlichen Randbedingungen (Verkehrsstärke, Lageparameter, Führungsform des Radverkehrs) ausgewählt. Die Akzeptanz von Kreisverkehrsanlagen durch Radfahrer wurde mittels einer Umfrage bewertet. An 6 Kreisverkehre erfolgten detailierten Verkehrsverhaltensbeobachtungen. Dabei wurde auch eine verkehrstechnische Bewertung der einzelnen Knotenpunkte und der Radverkehrsführungform durchgeführt.
description: The main objectives to this thesis are all the factors and influencing parameters which affect cycling guidance in roundabouts. This paper focuses on the subjective and objective quality of the traffic safety. For this purpose is presented a research of an internationally specialized technical literature about bicycle traffic and traffic safety. 14 roundabouts in state of Lower Austria with different conditions (traffic volumes, location parameters, the type of cycling guidance) were chosen for the analysis of local accidents. The acceptance of the traffic guidance by cyclist was evaluated through a questionnaire. Detailed analysis of the traffic behavior was made on six selected roundabouts. As well an evaluation of the technical parameters of the particular junctions was made.
Physarum compressum Alb. & Schwein.
Creators: name: Kryvomaz, Tetiana
name: Michaud, Alain
name: Stephenson, Steven L.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Fungi
Mycetozoa
Myxomycetes
Physarales
Physaraceae
Physarum
Physarum compressum

description: Physarum compressum Alb. & Schwein. (19 MC, 9 loc, 10 ps)
 Loc. 5 Mahé: On dry stems of living liana Ipomoea cairica, SLS (MC pH 6.4), SLS 32146 (MC pH 7.7). Loc. 6 Mahé: On fallen leaves of climber liana Epipremnum pinnatum, SLS 32360 (MC pH 6.9). Loc. 11 Praslin: On dead branch fixed to living tree Calophyllum inophyllum, SLS 32358 (MC pH 6.9). On dead leaves and stem of palm Phoenicophorium borsigianum, SLS 32145 (MC pH 5.9). On leaves of living climbing epiphytic orchid Vanilla planifolia on tree, SLS 32159 (MC pH 6.5). Loc. 18 Praslin: On living air roots of Martellidendron hornei, SLS 32482 (MC pH 5,9). Loc. 20b Praslin: On dry stems of living herbaceous creeper Passiflora foetida, SLS 32152 (MC pH 6.4), SLS (MC pH 6.6), SLS 32160 (MC pH 8.1). On dry stems of living epiphytic liana Syngonium podophyllum, SLS (MC pH 6.9). Loc. 24 Praslin: On pods on broken branch attached to living tree Falcataria moluccana, SLS (MC pH 6.5). On dead bark of living epiphytic liana Syngonium podophyllum, SLS 32144 (MC pH 7.8), SLS 32146 (MC pH 7.7). Loc. 35 La Digue: On stems of living climber liana Epipremnum pinnatum, AM 3900 (MC114), AM3902 (MC 116), TK2420. Loc. 37j La Digue: On dead leaves of Alocasia macrorrhiza, SLS (MC pH 6.5). Loc. 38b La Digue: On dry stems of living liana Ipomoea sp., SLS 32143 (MC pH 7.3). On dry stems of living epiphytic liana Syngonium podophyllum, SLS 32164 (MC pH 6.3).
description: Published as part of Kryvomaz, Tetiana, Michaud, Alain & Stephenson, Steven L., 2020, Myxomycete biodiversity on five islands of the Seychelles, pp. 201-244 in Zootaxa 4851 (2) on page 236, DOI: 10.11646/zootaxa.4851.2.1, http://zenodo.org/record/4407410
The SuperMACHO Microlensing Survey
Creators: name: Becker, A. C.
name: Rest, A.
name: Stubbs, C.
name: Miknaitis, G. A.
name: Miceli, A.
name: Covarrubias, R.
name: Hawley, S. L.
name: Aguilera, C.
name: Smith, R. C.
name: Suntzeff, N. B.
name: Olsen, K.
name: Prieto, J. L.
name: Hiriart, R.
name: Garg, A.
name: Welch, D. L.
name: Cook, K. H.
name: Nikolaev, S.
name: Clocchiatti, A.
name: Minniti, D.
name: Keller, S. C.
name: Schmidt, B. P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first results from our next-generation microlensing survey, the SuperMACHO project. We are using the CTIO 4m Blanco telescope and the MOSAIC imager to carry out a search for microlensing toward the Large Magellanic Cloud (LMC). We plan to ascertain the nature of the population responsible for the excess microlensing rate seen by the MACHO project. Our observing strategy is optimized to measure the differential microlensing rate across the face of the LMC. We find this derivative to be relatively insensitive to the details of the LMC's internal structure but a strong discriminant between Galactic halo and LMC self lensing. In December 2003 we completed our third year of survey operations. 2003 also marked the first year of real-time microlensing alerts and photometric and spectroscopic followup. We have extracted several dozen microlensing candidates, and we present some preliminary light curves and related information. Similar to the MACHO project, we find SNe behind the LMC to be a significant contaminant - this background has not been completely removed from our current single-color candidate sample. Our follow-up strategy is optimized to discriminate between SNe and true microlensing.
description: To appear in Proceedings of IAU Symposium 225: Impact of Gravitational Lensing on Cosmology, 6 pages
WPŁYW RESTRUKTURYZACJI NA EFEKTYWNOŚĆ PRZEMYSŁU BROWARNICZEGO W POLSCE W LATACH 2004-2014
Creators: name: Rola, Katarzyna
name: Rola, Katarzyna
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Productivity Analysis
subject: beer
subject: restructuring
subject: efficiency
subject: brewing industry
subject: Poland

description: An assessment of restructuring impact on the efficiency of brewing industry in Poland was the main aim of the study. Polish beer market showed a dynamic development. It reflected ownership changes along with modernisation and enlargement of production capacities supported with foreign direct investments. The brewing sector achieved the efficiency which was one of the highest within the entire agri-food industry. However in the last decade the efficiency of direct consumption, labour and capital have declined.
Long-lasting Molecular Orientation Induced by a Single Terahertz Pulse
Creators: name: Xu, Long
name: Tutunnikov, Ilia
name: Gershnabel, Erez
name: Prior, Yehiam
name: Averbukh, Ilya Sh.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Control of molecular rotations by laser fields is an active area of research focusing on the alignment/orientation of otherwise isotropic molecular samples. Oriented molecules are useful in many applications, such as molecular orbital tomography, femtosecond imaging of molecular structure, dynamics and chemical reaction control. In this work, we present a novel, previously unreported phenomenon appearing in thermal ensembles of non-linear polar molecules excited by a single THz pulse. We find that the induced orientation lasts long after the excitation pulse is over. In the case of symmetric-top molecules, the ensemble averaged orientation remains indefinitely constant after the pulse, whereas in the case of asymmetric-top molecules the orientation persists for a long time after the end of the pulse. We discuss the underlying mechanism, study its non-monotonous temperature dependence, and show that there exists an optimal temperature for the maximal residual orientation. The persistent orientation implies long lasting macroscopic dipole moment, which may be probed by second (or higher order) harmonic generation.
description: 6 pages, 4 figures
Linear Regge trajectories from worldsheet lattice parton field theory
Creators: name: Biswas, Tirthabir
name: Grisaru, Marc
name: Siegel, Warren
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that unlike conventional field theory, the particle field theory of the string's constituents produces in the ladder approximation linear Regge trajectories, in accord with its string theory dual. In this theory propagators are Gaussian and this feature facilitates the perturbative evaluation of scattering amplitudes. We develop general techniques for studying their general asymptotic form. We consider radiative corrections to the ladder Regge trajectory and discover that linearity is lost; however, this may be due to certain approximations we have made.
description: 30 pages, 5 figures
ZNACZENIE TURYSTYKI WIEJSKIEJ W ZRÓWNOWAŻONYM ROZWOJU TERENÓW PERYFERYJNYCH (NA PRZYKŁADZIE GMINY PŁASKA)
Creators: name: Roszkowska-Mądra, Barbara
name: Roman, Michał
name: Roszkowska-Mądra, Barbara
name: Roman, Michał
Publisher: name: Unknown
Year: 2015
Subjects: subject: Community/Rural/Urban Development
subject: Environmental Economics and Policy
subject: rural tourism
subject: agrotourism
subject: sustainable development
subject: peripheral areas

description: The aim of the paper was to present different functions of rural tourism and agrotourism as well as their effects on the socio-economic progress in Płaska commune including its multifunctionality being a basis of sustainable development of agriculture and rural areas. It was found that the tourism development on peripheral areas enables their socio-economic progress and creating new functions delivering more incomes for farmers and rural inhabitants. The tourism development affects also positively agricultural land use which is needed for maintenance of ecological balance, landscape protection and continuing cultural tradition needed for regional identity of the inhabitants. Finally, it was detected that tourism function was an important component of sustainable development of Płaska commune.