cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Schrödinger and polyharmonic operators on infinite graphs: Parabolic well-posedness and p-independence of spectra
Creators: name: Becker, Simon
name: Gregorio, Federica
name: Mugnolo, Delio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We analyze properties of semigroups generated by Schrödinger operators $-Δ+V$ or polyharmonic operators $-(-Δ)^m$, on metric graphs both on $L^p$-spaces and spaces of continuous functions. In the case of spatially constant potentials, we provide a semi-explicit formula for their kernel. Under an additional sub-exponential growth condition on the graph, we prove analyticity, ultracontractivity, and pointwise kernel estimates for these semigroups; we also show that their generators' spectra coincide on all relevant function spaces and present a Kre\uın-type dimension reduction, showing that their spectral values are determined by the spectra of generalized discrete Laplacians acting on various spaces of functions supported on combinatorial graphs.
description: comments welcome
Developing Socially Inclusive Art Museums
Creators: name: Khashan, Natanya
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 4302
subject: Heritage, archive and museum studies

description: This study examines the role of museums in communities as arbiters of social inclusion. It seeks to compel the need for museums to become community-centric in order to broaden their audience to all community members, increase their relevancy, and fulfill their requirements as non-profit institutions. This research examines how social inclusion and exclusion enters the museum, resistance to and support of social inclusion in museums, and challenges to becoming more socially inclusive. This study concludes with recommendations on researching and evaluating community needs, building social inclusion internally, utilizing advisory councils, and creating socially inclusive programming. A series of examples and case studies of museums working towards building social inclusion are used to illustrate ideas and recommendations.
Lyapunov instabilities of Lennard-Jones fluids
Creators: name: Yang, Hong-liu
name: Radons, Günter
Publisher: name: arXiv
Year: 2004
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Recent work on many particle system reveals the existence of regular collective perturbations corresponding to the smallest positive Lyapunov exponents (LEs), called hydrodynamic Lyapunov modes. Until now, however, these modes are only found for hard core systems. Here we report new results on Lyapunov spectra and Lyapunov vectors (LVs) for Lennard-Jones fluids. By considering the Fourier transform of the coordinate fluctuation density $u^{(α)}(x,t)$, it is found that the LVs with $λ\approx 0$ are highly dominated by a few components with low wave-numbers. These numerical results provide strong evidence that hydrodynamic Lyapunov modes do exist in soft-potential systems, although the collective Lyapunov modes are more vague than in hard-core systems. In studying the density and temperature dependence of these modes, it is found that, when the value of Lyapunov exponent $λ^{(α)}$ is plotted as function of the dominant wave number $k_{max}$ of the corresponding LV, all data from simulations with different densities and temperatures collapse onto a single curve. This shows that the dispersion relation $λ^{(α)}$ vs. $k_{max}$ for hydrodynamical Lyapunov modes appears to be universal irrespective of the particle density and temperature of the system. Despite the wave-like character of the LVs, no step-like structure exists in the Lyapunov spectrum of the systems studied here, in contrast to the hard-core case. Further numerical simulations show that the finite-time LEs fluctuate strongly. We have also investigated localization features of LVs and propose a new length scale to characterize the Hamiltonian spatio-temporal chaotic states.
description: 12 pages, 20 figures
Frequency Dependence of Magnetoelectric Interactions in Layered Structures of Ferromagnetic Alloys and Piezoelectric Oxides
Creators: name: Laletsin, U.
name: Padubnaya, N.
name: Srinivasan, G.
name: DeVreugd, C. P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Magnetoelectric (ME) interactions in layered structures of magnetostrictive and piezoelectric phases are mediated by mechanical deformation. Here we discuss the frequency dependence of ME coupling in bilayers and trilayers of Permendur, a ferromagnetic alloy, and lead zirconate titanate. Data on ME voltage coefficient versus frequency profiles reveal a giant ME coupling at electromechanical resonance. The maximum voltage coefficient of 90 V/cm Oe is three orders of magnitude higher than low-frequency values. The ME interactions for transverse fields is an order of magnitude stronger than for longitudinal fields. These results are in agreement with theory. The resonance ME effect, therefore, is a novel tool for enhancing the magnetic-to-electric field conversion efficiency in the composites.
description: accepted for publication as rapid communication in Applied Physics A
Properties of X-ray detected far-IR AGN in the green valley
Creators: name: Mahoro, Antoine
name: Pović, Mirjana
name: Väisänen, Petri
name: Nkundabakura, Pheneas
name: Nyiransengiyumva, Beatrice
name: van der Heyden, Kurt
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In this study, we analysed active galactic nuclei in the "green valley" by comparing active and non-active galaxies using data from the COSMOS field. We found that most of our X-ray detected active galactic nuclei with far-infrared emission have star formation rates higher than the ones of normal galaxies of the same stellar mass range.
description: Proceedings paper of the IAU symposium "Nuclear Activity in Galaxies Across Cosmic Time" (Ethiopia) accepted to be published under the Cambridge University Press, eds. M. Povic, P. Marziani, J. Masegosa, H. Netzer, S. H. Negu, and S. B. Tessema
Spin Nomenclature for Semiconductors and Magnetic Metals
Creators: name: Jonker, B. T.
name: Hanbicki, A. T.
name: Pierce, D. T.
name: Stiles, M. D.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The different conventions used in the semiconductor and magnetic metals communities can cause confusion in the context of spin polarization and transport in simple heterostructures. In semiconductors, terminology is based on the orientation of the electron spin, while in magnetic metals it is based on the orientation of the moment. In the rapidly expanding field of spintronics, where both semiconductors and metallic metals are important, some commonly used terms ("spin-up," "majority spin") can have different meanings. Here, we clarify nomenclature relevant to spin transport and optical polarization by relating the common physical observables and "definitions" of spin polarization to the fundamental concept of conservation of angular momentum within a well-defined reference frame.
description: 3 pages, 2 figures, 16 references
The B^- -> phi phi K^- decay rate with phi phi invariant mass below charm treshold
Creators: name: Fajfer, Svjetlana
name: Pham, Tri Nang
name: Prapotnik, Anita
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the decay mechanism in the B^- -> phi phi K^- decay with the phi phi invariant mass below the charm threshold and in the neighborhood of the eta_c invariant mass region. Our approach is based on the use of factorization model and the knowledge of matrix elements of the weak currents. For the B meson weak transition we apply form factor formalism, while for the light mesons we use effective weak and strong Lagrangians. We find that the dominant contributions to the branching ratio come from the eta, eta' and eta(1490) pole terms of the penguin operators in the decay chains B^- -> eta (eta', eta(1490)) K^- -> phi phi K^-. Our prediction for the branching ratio is in agreement with the Belle's result.
description: 14 pages, 4 figures, 2 tables
IMPLEMENTATION AND TESTING OF SHEAFIFICATION OF GOODWIN MODELS
Creators: name: Fantie, Samara
Publisher: name: American University
Year: 2023

description: Economics and mathematics have always been interrelated. This paper examines one such instance of overlapping: the Goodwin model of endogenous growth. Goodwin illustrates the dynamic interaction between employment rate and workers’ share of national income through differential equations exhibiting nuanced and complex behavior. Theories and models are refined over time; an important update to Goodwin’s model is Ishiyama’s (2001), who extends it to include two countries engaged in horizontal trade. Using sheaf theory, this paper provides a means for testing the original’s validity through synthesis and analysis of real-world data. Sheaves provide visual representations of complex variable relationship structures once the model’s equations are properly encoded via a dependency diagram. This paper attempts such analyses, focusing mainly on local sheaf sections, extensions to global sections, and quantifying data fit. To this end we implement a Pysheaf encoding of data from the Federal Reserve as a Section for the Sheafified Goodwin Model, examining the output and fit over various sliding windows. We conduct our analyses to test the original model’s validity and lay the groundwork for quantitatively comparing and judging other models in the future.
IMPLEMENTATION AND TESTING OF SHEAFIFICATION OF GOODWIN MODELS
Creators: name: Fantie, Samara
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 49
subject: Mathematical sciences

description: Economics and mathematics have always been interrelated. This paper examines one such instance of overlapping: the Goodwin model of endogenous growth. Goodwin illustrates the dynamic interaction between employment rate and workers’ share of national income through differential equations exhibiting nuanced and complex behavior. Theories and models are refined over time; an important update to Goodwin’s model is Ishiyama’s (2001), who extends it to include two countries engaged in horizontal trade. Using sheaf theory, this paper provides a means for testing the original’s validity through synthesis and analysis of real-world data. Sheaves provide visual representations of complex variable relationship structures once the model’s equations are properly encoded via a dependency diagram. This paper attempts such analyses, focusing mainly on local sheaf sections, extensions to global sections, and quantifying data fit. To this end we implement a Pysheaf encoding of data from the Federal Reserve as a Section for the Sheafified Goodwin Model, examining the output and fit over various sliding windows. We conduct our analyses to test the original model’s validity and lay the groundwork for quantitatively comparing and judging other models in the future.
The Overall Factors that Inhibit the Professional Development of Chinese Jingdezhen Ceramic Artists
Creators: name: Liu, Zhen
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 3606
subject: Visual arts

description: This paper concentrates on the study of the factors that inhibit the professional development of Jingdezhen ceramic artists in China, especially in terms of marketing and communication, by integrating research, surveys, interviews, and analysis to understand how they become professional ceramic artists, and how they promote their arts in the ceramic community. The paper points out the factors that prevent Jingdezhen ceramic artists from fully engaging in marketing. They include the absence of a mature marketing mindset and adequate marketing skills. It concludes with the suggestions to develop a marketing mindset, establish a strategic marketing plan, learn from other mature arts markets, strengthen the relationship with government-affiliated arts organizations, and credit images and publications on all occasions.
INVESTIGATING THE POTENTIAL RISK OF HYDRAULIC FRACTURING TECHNOLOGY TO THE POTOMAC RIVER WATERSHED
Creators: name: Casey, Colin P.
Publisher: name: American University
Year: 2023

description: In the past decade, hydraulic fracturing (“fracking”) has increased dramatically in the Marcellus Shale region, which stretches over parts of Pennsylvania, Maryland, Virginia, West Virginia, Ohio, and New York. Fracking and related activities (mixing fracking fluids, transporting chemicals and wastewater, disposing of wastewater) have the potential to pollute surface water in a variety of ways, but it remains unclear how widespread a problem such pollution may be. Thus, the goal of this master’s thesis was to assess whether geographic correlations exist between fracking in the watershed and significant differences in stream water quality. The geographic focus was the Potomac River watershed, which is Washington, D.C.’s water source. A small percentage of the Potomac watershed lies in West Virginia, where fracking has been occurring on an industrial scale since 2000, while the majority lies in Maryland and Northern Virginia, where no fracking has yet occurred. In summer 2015, 73 sites, mainly small streams but also including samples from the main stem of the Potomac and its major tributary the Shenandoah River, were sampled, and in summer 2016 an additional 15 sites in West Virginia were sampled. Parameters measured included specific conductance, pH, sulfate, 223Ra, 224Ra, 226Ra, and 228Ra, Rn, Al, Ba, Cr, Fe, K, Mg, Mn, Na, and Sr. Mean and median concentrations of 224Ra, Sr, Al, and sulfate in surface water as well as 226Ra in sediment were significantly elevated in areas downstream of a fracking well when compared to areas without a well. When comparing results on a state-by-state level, Virginia, a region without fracking, was found to have significantly lower mean and median levels of Sr, 224Ra, and 226Ra than both West Virginia (which has fracking) and Maryland (which does not). Sr isotope analysis did not indicate a significant difference in mean 87Sr/86Sr between the states but concentrations measured at several sites in West Virginia were within the ranges expected of produced waters from the fracking process. One abnormally high isotope ratio was found in Maryland. This study primarily analyzed geographic correlations, and there are a number of other potential explanations of these results such as extractive industry history. This study is the first to suggest that fracking and related activities are associated with widespread, statistically significant differences in stream water quality. Future research should investigate whether these patterns hold in other important watersheds affected by fracking and explore the specific mechanisms of pollution transport.
Asymptotic of the electric structure function and the deuteron wave function
Creators: name: Zhaba, V. I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The main features of obtaining the asymptotic behaviour of the electric structure function A(p) at large values of the transmitted momentum are analysed. The asymptotic behaviour of the structure function A(p) was determined to take into account the asymptotic behaviour of the deuteron form factors and the original dipole approximation for the nucleon form factors. Asymptotic values of A(p) were obtained for the nucleon-nucleon potential Reid93 and compared with the calculations for different nucleon form factors models and their approximations. In the broad momentum range up to 12.5 fm^(-1), the basic forms of the asymptotic behaviour of the electric structure function are demonstrated and compared with the experimental data of the modern collaborations. As the analysis shows in most cases considered, the asymptotic for A(p) is represented in the form of the power function p^(-n).
description: 12 pages, 3 figures
Characterisations of Intersection Graphs by Vertex Orderings
Creators: name: Wood, David R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences
subject: F.2.2

description: Characterisations of interval graphs, comparability graphs, co-comparability graphs, permutation graphs, and split graphs in terms of linear orderings of the vertex set are presented. As an application, it is proved that interval graphs, co-comparability graphs, AT-free graphs, and split graphs have bandwidth bounded by their maximum degree.
description: submitted
Force and Momentum in an Evolving Axisymmetric Universe Model
Creators: name: Sharif, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We take an axisymmetric rotating universe model by crossing with a time dependent factor and evaluate its force and momentum in this evolving universe. It is concluded that it behaves exactly like a Friedmann model. We also extend this conclusion to the most general cosmological model.
INVESTIGATING THE POTENTIAL RISK OF HYDRAULIC FRACTURING TECHNOLOGY TO THE POTOMAC RIVER WATERSHED
Creators: name: Casey, Colin P.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 41
subject: Environmental sciences

description: In the past decade, hydraulic fracturing (“fracking”) has increased dramatically in the Marcellus Shale region, which stretches over parts of Pennsylvania, Maryland, Virginia, West Virginia, Ohio, and New York. Fracking and related activities (mixing fracking fluids, transporting chemicals and wastewater, disposing of wastewater) have the potential to pollute surface water in a variety of ways, but it remains unclear how widespread a problem such pollution may be. Thus, the goal of this master’s thesis was to assess whether geographic correlations exist between fracking in the watershed and significant differences in stream water quality. The geographic focus was the Potomac River watershed, which is Washington, D.C.’s water source. A small percentage of the Potomac watershed lies in West Virginia, where fracking has been occurring on an industrial scale since 2000, while the majority lies in Maryland and Northern Virginia, where no fracking has yet occurred. In summer 2015, 73 sites, mainly small streams but also including samples from the main stem of the Potomac and its major tributary the Shenandoah River, were sampled, and in summer 2016 an additional 15 sites in West Virginia were sampled. Parameters measured included specific conductance, pH, sulfate, 223Ra, 224Ra, 226Ra, and 228Ra, Rn, Al, Ba, Cr, Fe, K, Mg, Mn, Na, and Sr. Mean and median concentrations of 224Ra, Sr, Al, and sulfate in surface water as well as 226Ra in sediment were significantly elevated in areas downstream of a fracking well when compared to areas without a well. When comparing results on a state-by-state level, Virginia, a region without fracking, was found to have significantly lower mean and median levels of Sr, 224Ra, and 226Ra than both West Virginia (which has fracking) and Maryland (which does not). Sr isotope analysis did not indicate a significant difference in mean 87Sr/86Sr between the states but concentrations measured at several sites in West Virginia were within the ranges expected of produced waters from the fracking process. One abnormally high isotope ratio was found in Maryland. This study primarily analyzed geographic correlations, and there are a number of other potential explanations of these results such as extractive industry history. This study is the first to suggest that fracking and related activities are associated with widespread, statistically significant differences in stream water quality. Future research should investigate whether these patterns hold in other important watersheds affected by fracking and explore the specific mechanisms of pollution transport.
NONPROFIT EXHIBITION SPACES: AN EVOLVING ALTERNATIVE FOR ARTISTS
Creators: name: Beringer, Aileen
Publisher: name: American University
Year: 2023

description: This thesis examines the function, structure, and place in the art world of nonprofit exhibition spaces. The more commonly discussed forms of exhibition museums and commercial galleries are failing a majority of artists. An artist’s career cannot be built on the hope of finding the perfect networking connection or creating the perfect commercially viable piece. Limiting the most visible and celebrated parts of the art world to the pieces that are most suited to commercialism also limits the creation of art in size, medium, color, and content. Academic research on art exhibition has focused a significant amount of interest on museums and commercial gallery spaces, making the options for artists seem narrow. While these two spaces hold a major role in art exhibition, they are not the only options. Whether it be to help grow an artist’s career or simply give them the space to exhibit their work, nonprofit exhibition spaces have taken on the role of working with artists in a more accessible way.
Paravelia bilobata Rodrigues 2014
Creators: name: Carrenho, Renan
name: Rodrigues, Higor D. D.
name: Lima, Adriana Carneiro de
name: Schwertner, Cristiano F.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Veliidae
Paravelia
Paravelia bilobata

description: Paravelia bilobata Rodrigues et al., 2014
 Paravelia bilobata Rodrigues, Moreira, Nieser, Chen & Melo in Rodrigues et al., 2014b: 8-10, figs. 4, 6A-F, 21.
 Paratype: 1 macropterous ♂, glued to pinned paper with abdominal segment VIII and genitalia in microvial; Brasil, Mato Grosso, Nova Xavantina, Córrego da Mata, fourth order, 15°01′32″S, 52°26′29″W, 17.XI.2005, 1788, H.S. R. Cabette et al .
description: Published as part of Carrenho, Renan, Rodrigues, Higor D. D., Lima, Adriana Carneiro de & Schwertner, Cristiano F., 2020, Type specimens of true bugs (Hemiptera: Heteroptera) housed in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-16 in Papéis Avulsos de Zoologia 60 on page 7, DOI: 10.11606/1807-0205/2020.60.17, http://zenodo.org/record/4614885
NONPROFIT EXHIBITION SPACES: AN EVOLVING ALTERNATIVE FOR ARTISTS
Creators: name: Beringer, Aileen
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 3507
subject: Strategy, management and organisational behaviour
classificationCode: 3606
subject: Visual arts

description: This thesis examines the function, structure, and place in the art world of nonprofit exhibition spaces. The more commonly discussed forms of exhibition museums and commercial galleries are failing a majority of artists. An artist’s career cannot be built on the hope of finding the perfect networking connection or creating the perfect commercially viable piece. Limiting the most visible and celebrated parts of the art world to the pieces that are most suited to commercialism also limits the creation of art in size, medium, color, and content. Academic research on art exhibition has focused a significant amount of interest on museums and commercial gallery spaces, making the options for artists seem narrow. While these two spaces hold a major role in art exhibition, they are not the only options. Whether it be to help grow an artist’s career or simply give them the space to exhibit their work, nonprofit exhibition spaces have taken on the role of working with artists in a more accessible way.
Predicting Intentions to Engage in a Suite of Yard Fertilizer Behaviors: Integrated Insights from the Diffusion of Innovations, Theory of Planned Behavior, and Contextual Factors
Creators: name: Warner, Laura A.
name: Diaz, John M.
name: Silvert, Colby
name: Hobbs, Wayne
name: Reisinger, Alexander J.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Research has inadequately examined factors that support residential yard care practices that influence water quality to date. This study evaluated factors that predict yard fertilizer best practices in the state of Florida, USA by pairing the Theory of Planned Behavior and Diffusion of Innovations along with contextual factors including age, population density, and living in a homeowners’ association. Data were collected from 1,197 Florida residents using an electronic researcher-developed survey instrument. Alone, all TPB variables (attitude, perceived behavioral control, subjective norms) predicted behavioral intent. When Diffusion of Innovation characteristics were added, compatibility predicted intent along with the TPB variables. When contextual variables were added to the final model, the same variables remained significant and age (younger), living in an HOA, and not living in a metro with less than 250,000 people predicted behavioral intent. Findings offer new insights into residential yard fertilizer behaviors informed by integrating the two theories.
Optimization strategies for modulation transfer spectroscopy applied to laser stabilization
Creators: name: Preuschoff, Tilman
name: Schlosser, Malte
name: Birkl, Gerhard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a general analysis for determining the optimal modulation parameters for the modulation transfer spectroscopy scheme. The results are universally valid and can be applied to spectroscopy of any atomic species requiring only the knowledge of the effective linewidth $Γ_{eff}$. A signal with optimized slope and amplitude is predicted for a large modulation index $M$ and a modulation frequency comparable to the natural linewidth of the spectroscopic transition. As a result of competing practical considerations, a modulation index in the range of $3 \le M \le 10$ has been identified as optimal. This parameter regime is experimentally accessible with a setup based on an acousto-optic modulator. An optimized signal for spectroscopy of the rubidium D2 line is presented. The signal shape and the dependence on the modulation parameters are in very good agreement with the theoretical description given. An experimental procedure for achieving a strong suppression of residual amplitude modulation is presented. Based on the optimized signal, we demonstrate long-term laser stabilization resulting in a laser linewidth of 150\,kHz (16\,s average) and a frequency stability of 18\,kHz (rms) over 15 hours.
AnDi: The Anomalous Diffusion Challenge
Creators: name: Muñoz-Gil, Gorka
name: Volpe, Giovanni
name: Garcia-March, Miguel Angel
name: Metzler, Ralf
name: Lewenstein, Maciej
name: Manzo, Carlo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The deviation from pure Brownian motion generally referred to as anomalous diffusion has received large attention in the scientific literature to describe many physical scenarios. Several methods, based on classical statistics and machine learning approaches, have been developed to characterize anomalous diffusion from experimental data, which are usually acquired as particle trajectories. With the aim to assess and compare the available methods to characterize anomalous diffusion, we have organized the Anomalous Diffusion (AnDi) Challenge (\url{http://www.andi-challenge.org/}). Specifically, the AnDi Challenge will address three different aspects of anomalous diffusion characterization, namely: (i) Inference of the anomalous diffusion exponent. (ii) Identification of the underlying diffusion model. (iii) Segmentation of trajectories. Each problem includes sub-tasks for different number of dimensions (1D, 2D and 3D). In order to compare the various methods, we have developed a dedicated open-source framework for the simulation of the anomalous diffusion trajectories that are used for the training and test datasets. The challenge was launched on March 1, 2020, and consists of three phases. Currently, the participation to the first phase is open. Submissions will be automatically evaluated and the performance of the top-scoring methods will be thoroughly analyzed and compared in an upcoming article.
description: 6 pages, 2 figure - AnDi Challenge webpage: http://www.andi-challenge.org
Paravelia bromelicola Rodrigues & Moreira 2016
Creators: name: Carrenho, Renan
name: Rodrigues, Higor D. D.
name: Lima, Adriana Carneiro de
name: Schwertner, Cristiano F.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Veliidae
Paravelia
Paravelia bromelicola

description: Paravelia bromelicola Rodrigues & Moreira, 2016
 Paravelia bromelicola Rodrigues & Moreira, 2016c: 645, 647, figs. 4-5, 13-15, 51.
 Holotype: Macropterous ♂, glued to pinned paper with abdominal segment VIII and genitalia in microvial; Brasil, Santa Catarina, Hammonia, tombo 15.550 (70.965), VII.1910, H. Lüderwaldt col.
 Paratype: Macropterous ♂, glued to pinned paper with abdominal segment VIII and genitalia in microvial; Brasil, São Paulo, Cubatão, Estação Raiz da Serra, entre folhas de Bromeliaceae, tombo 9.968 (70.318), 30.IX.1907, H. Lüderwaldt col.
 Remarks: Unique specimen records 15,550 (holotype) and 9,968 (paratype) are field numbers from Hermann von Lüderwaldt (1865-1934), whereas 70,965 (holotype) and 70,318 (paratype) are likely accession numbers from MZUSP, which are no longer used today.
description: Published as part of Carrenho, Renan, Rodrigues, Higor D. D., Lima, Adriana Carneiro de & Schwertner, Cristiano F., 2020, Type specimens of true bugs (Hemiptera: Heteroptera) housed in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-16 in Papéis Avulsos de Zoologia 60 on page 8, DOI: 10.11606/1807-0205/2020.60.17, http://zenodo.org/record/4614885
Types of gauge groups in six-dimensional F-theory on double covers of rational elliptic 3-folds
Creators: name: Kimura, Yusuke
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this study, we analyze gauge groups in six-dimensional $N=1$ F-theory models. We construct elliptic Calabi-Yau 3-folds possessing various singularity types as double covers of "1/2 Calabi-Yau 3-folds", a class of rational elliptic 3-folds, by applying the method discussed in a previous study to classify the singularity types of the 1/2 Calabi-Yau 3-folds. One to three U(1) factors are formed in six-dimensional F-theory on the constructed Calabi-Yau 3-folds. The singularity types of the constructed Calabi-Yau 3-folds corresponding to the non-Abelian gauge group factors in six-dimensional F-theory are deduced. The singularity types of the Calabi-Yau 3-folds constructed in this work consist of $A$- and $D$-type singularities.
description: 22 pages
Capturing coupled riparian and coastal disturbance from industrial mining using cloud-resilient satellite time series analysis (article)
Creators: name: Ahmed, Nabil
name: Alonzo, Michael
name: Van Den Hoek, Jamon
Publisher: name: American University
Year: 2023

description: The socio-ecological impacts of large scale resource extraction are frequently underreported in underdeveloped regions. The open-pit Grasberg mine in Papua, Indonesia, is one of the world’s largest copper and gold extraction operations. Grasberg mine tailings are discharged into the lowland Ajkwa River deposition area (ADA) leading to forest inundation and degradation of water bodies critical to indigenous peoples. The extent of the changes and temporal linkages with mining activities are difficult to establish given restricted access to the region and persistent cloud cover. Here, we introduce remote sensing methods to “peer through” atmospheric contamination using a dense Landsat time series to simultaneously quantify forest loss and increases in estuarial suspended particulate matter (SPM) concentration. We identified 138 km2 of forest loss between 1987 and 2014, an area >42 times larger than the mine itself. Between 1987 and 1998, the rate of disturbance was highly correlated (Pearson’s r = 0.96) with mining activity. Following mine expansion and levee construction along the ADA in the mid-1990s, we recorded significantly (p < 0.05) higher SPM in the Ajkwa Estuary compared to neighboring estuaries. This research provides a means to quantify multiple modes of ecological damage from mine waste disposal or other disturbance events.
Atmospheric Temperature Effect in secondary cosmic rays observed with a two square meter ground-based detector
Creators: name: Riádigos, Irma
name: García-Castro, Damián
name: González-Díaz, Diego
name: Pérez-Muñuzuri, Vicente
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: A high resolution 2 m$^2$ tracking detector, based on timing Resistive Plate Chamber (tRPC) cells, has been installed at the Faculty of Physics of the University of Santiago de Compostela (Spain) in order to improve our understanding of the cosmic rays arriving at the Earth's surface. Following a short commisioning of the detector, a study of the atmospheric temperature effect of the secondary cosmic ray component was carried out. A method based on Principal Component Analysis (PCA) has been implemented in order to obtain the distribution of temperature coefficients, $W_T(h)$, using as input the measured rate of nearly vertical cosmic ray tracks, showing good agreement with the theoretical expectation. The method succesfully removes the correlation present between the different atmospheric layers, that would be dominant otherwise. We briefly describe the initial calibration and pressure correction procedures, essential to isolate the temperature effect. Overall, the measured cosmic ray rate displays the expected anticorrelation with the effective atmospheric temperature, through the coefficient $α_T= -0.279 \pm 0.051 $ \%/K. Rates follow the seasonal variations, and unusual short-term events are clearly identified too.
description: 18 pages, 10 figures, Submitted to Earth and Space Science
Paravelia cunhai Rodrigues & Moreira 2016
Creators: name: Carrenho, Renan
name: Rodrigues, Higor D. D.
name: Lima, Adriana Carneiro de
name: Schwertner, Cristiano F.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Veliidae
Paravelia
Paravelia cunhai

description: Paravelia cunhai Rodrigues & Moreira, 2016
 Paravelia cunhai Rodrigues & Moreira, 2016b: 184-187, figs. 1-7, 11.
 Holotype: Macropterous ♂, glued to pinned paper with abdominal segment VIII and genitalia in microvial; Brasil, Pará, Vitória do Xingu, comunidade Leonardo da Vinci, poça dentro de caverna, 03°09′07″S, 52°04′30″W, 08.II.2014, E.J. R. Cunha.
description: Published as part of Carrenho, Renan, Rodrigues, Higor D. D., Lima, Adriana Carneiro de & Schwertner, Cristiano F., 2020, Type specimens of true bugs (Hemiptera: Heteroptera) housed in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-16 in Papéis Avulsos de Zoologia 60 on page 8, DOI: 10.11606/1807-0205/2020.60.17, http://zenodo.org/record/4614885
Картографические источники Российской Империи, касающиеся этнической идентичности населения Бессарабии. Научное значение и учебная польза.
Creators: name: Dolghi, Adrian
name: Felea, Alina
Publisher: name: figshare
Year: 2020
Subjects: subject: 90901 Cartography
subject: FOS: Environmental engineering
subject: History

description: Картографические источники Российской Империи, касающиеся этнической идентичности населения Бессарабии. Научное значение и учебная польза. In. Научно-практическая конференция роль культурного наследия в гражданском воспитании и продвижении демократических ценностей, Кишинэу, 17 декабря 2019 года. Chișinău: Princeps, 2020, С. 65- 75 ISBN 978-9975-3379-2-2.

Из вышеизложенного видно, что этнографические карты, составленные в XIX – начале ХХ века, представляют собой ценный источник для изучения этнической истории населения Бессарабии (1812-1918 гг.), которая показывает, что большинство населения составляли румыны, этот факт признан современными картографами, наряду с румынами, выявлены другие этнические группы; служит картографическому расположению этнических групп в географическом пространстве, способствует лучшему пониманию происходящих этнодемографических процессов, включая политику империи по колонизации. В этой связи картографические источники Российской Империи могут служить сегодня в научно-образовательном плане для лучшего понимания этнической самобытности населения Бессарабии в XIX – начале XX века, общественного мнения Российской Империи по этому вопросу, а также и научной основой для борьбы с историографическими мифами об этнической принадлежности большинства населения Республики Молдова.
Photon regions and umbilic conditions in stationary axisymmetric spacetimes
Creators: name: Kobialko, K. V.
name: Gal'tsov, D. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Photon region (PR) in the strong gravitational field is defined as a compact region where photons can travel endlessly without going to infinity or disappearing at the event horizon. In Schwarzschild metric PR degenerates to the two-dimensional photon sphere $r=3r_g/2$ where closed circular photon orbits are located. The photon sphere as a three-dimensional hypersurface in spacetime is umbilic (its second quadratic form is pure trace). In Kerr metric the equatorial circular orbits have different radii for prograde, $r_p$, and retrograde, $r_r$, motion (where $r$ is Boyer-Lindquist radial variable), while for $r_p
Capturing coupled riparian and coastal disturbance from industrial mining using cloud-resilient satellite time series analysis (article)
Creators: name: Ahmed, Nabil
name: Alonzo, Michael
name: Van Den Hoek, Jamon
Publisher: name: Scientific Reports
Year: 2023
Subjects: classificationCode: 41
subject: Environmental sciences

description: The socio-ecological impacts of large scale resource extraction are frequently underreported in underdeveloped regions. The open-pit Grasberg mine in Papua, Indonesia, is one of the world’s largest copper and gold extraction operations. Grasberg mine tailings are discharged into the lowland Ajkwa River deposition area (ADA) leading to forest inundation and degradation of water bodies critical to indigenous peoples. The extent of the changes and temporal linkages with mining activities are difficult to establish given restricted access to the region and persistent cloud cover. Here, we introduce remote sensing methods to “peer through” atmospheric contamination using a dense Landsat time series to simultaneously quantify forest loss and increases in estuarial suspended particulate matter (SPM) concentration. We identified 138 km2 of forest loss between 1987 and 2014, an area >42 times larger than the mine itself. Between 1987 and 1998, the rate of disturbance was highly correlated (Pearson’s r = 0.96) with mining activity. Following mine expansion and levee construction along the ADA in the mid-1990s, we recorded significantly (p < 0.05) higher SPM in the Ajkwa Estuary compared to neighboring estuaries. This research provides a means to quantify multiple modes of ecological damage from mine waste disposal or other disturbance events.
Lepton flavour violation in realistic non-minimal supergravity models
Creators: name: Hayes, J. G.
name: King, S. F.
name: Peddie, I. N. R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Realistic effective supergravity models have a variety of sources of lepton flavour violation (LFV) which can drastically affect the predictions relative to the scenarios usually considered in the literature based on minimal supergravity and the supersymmetric see-saw mechanism. We catalogue the additional sources of LFV which occur in realistic supergravity models including the effect of D-terms arising from an Abelian U(1) family symmetry, non-aligned trilinear contributions from scalar F-terms, as well as non-minimal supergravity contributions and the effect of different Yukawa textures. In order to quantify these effects, we investigate a string inspired effective supergravity model arising from intersecting D-branes supplemented by an additional U(1) family symmetry. In such theories the magnitude of the D-terms is predicted, and we calculate the branching ratios for $μ\to eγ$ and $τ\to μγ$ for different benchmark points designed to isolate the different non-minimal contributions. We find that the D-term contributions are generally dangerously large, but in certain cases such contributions can lead to a dramatic suppression of LFV rates, for example by cancelling the effect of the see-saw induced LFV in $τ\to μγ$ models with lop-sided textures. In the class of string models considered here we find the surprising result that the D-terms can sometimes serve to restore universality in the effective non-minimal supergravity theory.
description: 44 pages, 6 figures
title: Reverse engieering gene regulatory networks: Elucidation of trancriptome organization, gene function and gene regulation in mammalian systems
Creators: name: Belcastro, Vincenzo
Publisher: name: The Open University
Year: 2011

description: The main aim of this thesis was to infer mammalian gene regulatory networks from tens of thousands gene expression profiles via a new "reverse-engineering" approach. Human arid Mouse gene regulatory networks were both inferred and the results collected in a database that represents part of the non-written material that will support. the thesis (http: //rretview. tigem. it). Each gene regulatory network consists of a set of gene pairs (connections) and a score based on Mutual Information, which states their statistical dependence. The inferred connections are organized into a network that allows exploration of the global features of gene regulation in a mammalian cell. We collected a massive and heterogeneous dataset of 22,255 gene expression profiles from a variety of human samples and experimental conditions. We developed a new mutual-information (MI) reverse-engineering approach able to quantify the extent to which the mRNA levels of two genes are related to each other across such a complex dataset. The resulting network consists of 4,817,629 connections among 22,255 transcripts. The inferred connections were compared against known protein-protein and other regulatory interactions to assess their biological significance. We experimentally identified a subset of predicted protein-protein interactions not previously described in the literature. We discovered regulatory modules within the network, consisting of genes strongly connected to each other, which carry out specific biological functions. We found that these connected genes tend to be in physical proximity at the chromatin level in the nucleus. We show that the network can be used to predict the biological function and subcellular localization of a protein, and to elucidate the function of a disease-gene. Specifically we discovered that the gene granulin precursor GRN), whose mutations cause frontotemporal lobar degeneration, is involved in lysosome function. We have developed an online tool (http://netview.tigem.it) for querying and exploring the gene regulatory network.
Paravelia digitata Rodrigues & Moreira 2016
Creators: name: Carrenho, Renan
name: Rodrigues, Higor D. D.
name: Lima, Adriana Carneiro de
name: Schwertner, Cristiano F.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Veliidae
Paravelia
Paravelia digitata

description: Paravelia digitata Rodrigues & Moreira, 2016
 Paravelia digitata Rodrigues & Moreira, 2016c: 647-649, figs. 6-7, 16-18, 31, 51.
 Holotype: Macropterous ♂, glued to pinned paper with abdominal segment VIII and genitalia in microvial; Brasil, Bahia, Santa Maria da Vitória, gruta da Bananeira, no date, F. Chaimowicz.
 Paratypes: 1 macropterous ♀, glued to pinned paper; same data as holotype. 3 macropterous ♂, 1 macropterous ♀, glued to pinned paper; Brasil, Bahia, Serra do Ramalho, Gruna do Google, 13°37′42.0″S, 43°48′49.0″W, 13.IX.2008, M.E. Bichuette & R. Rantin. 2 macropterous ♂, 1 macropterous ♀, glued to pinned paper; Brasil, Bahia, Serra do Ramalho, Gruna Vila Nova /ZE, 13°33′14.3″S, 43°52′40.7″W, 11.IX.2008, M.E. Bichuette & R. Rantin. 2 macropterous ♀, glued to pinned paper; Brasil, Bahia, Serra do Ramalho, Gruna Vila Nova /ZE, 13°33′14.3″S, 43°52′40.7″W, 26. VII.2012, M.E. Bichuette & J.E. Gallão. 1 macropterous ♀, glued to pinned paper; Brasil, Bahia, Serra do Ramalho, Caverna Vila Nova /ZA, 13°33′14.3″S, 43°52′40.7″W, 27. VII.2012, M.E. Bichuette & J.E. Gallão. 1 macropterous ♂, 1 macropterous ♀, glued to pinned paper; Brasil, Bahia, Cariranha, Caverna Domingão, 13°44′40.7″S, 43°49′59.7″W, 27. VII.2012, M.E. Bichuette & J.E. Gallão. 7 macropterous ♀, glued to pinned paper; Brasil, Bahia, Iuiú, Lapa do Baixão-Epígeo, 14°23′08.11″S, 43°37′35.00″W, 06. XII.2012, M.E. Bichuette & J.E. Gallão. 11 macropterous ♂, 4 macropterous ♀, glued to pinned paper; Brasil, Bahia, Coribe, Gruna do Enfurnado, 13°38′41.8″S, 44°12′34.7″W, VII.2007, E. Trajano & D. Sansone. 1 macropterous ♀, glued to pinned paper; Brasil, Bahia, Feira da Mata, Caverna Chico Pernambuco, 13°49′09.0″S, 44°04′14.9″W, 28. VII.2012, M.E. Bichuette & J.E. Gallão. 1 macropterous ♀, glued to pinned paper; Brasil, Bahia, São Desidério, Gruta Baixa Fria, 12°22′55.2″S, 44°56′14.4″W, 04.XI.2008, M.E. Bichuette, T. L.C. Scatolini & D. R. Pedroso. 1 macropterous ♂, 1 macropterous ♀, glued a pinned paper; Brasil, Bahia, Andaraí, Gruna dos Torras, 12°51′41.6″S, 41°18′52.6″W, 14. VII.2008, M.E. Bichuette, T. L.C. Scatolini & D. R. Pedroso. 1 macropterous ♀; glued to pinned paper; Brasil, Rio Grande do Norte, Martins, Gruta Labirinto, 06°03′23″S, 37°53′46″W, 10.I.2013, M. Kramer.
description: Published as part of Carrenho, Renan, Rodrigues, Higor D. D., Lima, Adriana Carneiro de & Schwertner, Cristiano F., 2020, Type specimens of true bugs (Hemiptera: Heteroptera) housed in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-16 in Papéis Avulsos de Zoologia 60 on page 8, DOI: 10.11606/1807-0205/2020.60.17, http://zenodo.org/record/4614885
An Optimal Algorithm for Approximate Nearest Neighbor Searching in Fixed Dimensions
Creators: name: Wu, Angela
name: Arya, Sunil
name: Mount, David M.
name: Netanyahu, Nathan S.
name: Silverman, Ruth
Publisher: name: American University
Year: 2023

description: Consider a set S of n data points in real d-dimensional space, Rd, where distances are measured using any Minkowski metric. In nearest neighbor searching, we preprocess S into a data structure, so that given any query point q [ Rd, is the closest point of S to q can be reported quickly. Given any positive real e , a data point p is a (11 e )-approximate nearest neighbor of q if its distance from q is within a factor of (1 1 e ) of the distance to the true nearest neighbor. We show that it is possible to preprocess a set of n points in Rd in O(dn log n) time and O(dn) space, so that given a query point q [ Rd, and e . 0, a (11 e )-approximate nearest neighbor of q can be computed in O(cd, e log n) time, where cd, e # d 1 1 6d/ e d is a factor depending only on dimension and e . In general, we show that given an integer k $ 1, (1 1 e )-approximations to the k nearest neighbors of q can be computed in additional O(kd log n) time.