cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Sequential adaptive sampling designs to estimate abundance in rare populations
Creators: name: Lan, Feng
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 49
subject: Mathematical sciences
classificationCode: 4905
subject: Statistics
subject: FOS: Mathematics

description: A sampling design is a procedure by which a sample is selected and estimator is derived in order to estimate a characteristic of the population. The basic problem of sampling is to estimate some characteristic of a population by observing only part of the population. This study is concerned with the problem of designing sampling schemes for rare populations that exhibit patterns of clustering or patchiness related to habitat availability or intrinsic factors. Recent developments, such as adaptive cluster sampling (Thompson, 1990) have been shown to be a useful application for rare, clustered populations. However, in his design the use of it requires the decision of initial sample size. And the common estimators are not optimal in the sense of having the smallest variance among a set of possible estimators. Further, the design has very low efficiency relative to comparable conventional designs when the population is neither rare nor highly clustered (Christman, 1997). There is a positive probability that a sample will result in an estimate of zero abundance. Brown (1994) modified adaptive cluster sampling in which selection of units for the initial sample continues until a fixed final sample size is reached. This controls the sample size but at the cost of introducing bias into estimation of the population total. This study explores the methodologies and applications of sequential adaptive sampling. Unbiased estimators of the population total are attained under the positive aspects of the adaptive sampling and sequential selection of the initial sampling units by controlling the number of clusters sampled in the population. Several sampling designs are described. They incorporate an adaptive component. For each design, estimators and measures of their accuracy will be obtained. Comparisons of the mean squared errors are conducted to find the optimal estimator. These comparisons are analytic where the equations allow and through simulations otherwise.
Evaluation of investment support under Rural Development Programme 2014-2020 – preliminary results for Poland
Creators: name: Pawlowska, Aleksandra
name: Bocian, Monika
name: Jaroszewska, Joanna
name: Pawlowska, Aleksandra
name: Bocian, Monika
name: Jaroszewska, Joanna
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural and Food Policy
subject: propensity score matching
subject: labour productivity
subject: farms
subject: Rural Development Programme

description: The aim of support under the second pillar of the CAP is to improve the economic situation of farms. The research objective of the study is to estimate the effect of support for investments under RDP 2014-2020 on an increase in labour productivity on Polish farms, defined as gross value added per annual work unit (GVA/AWU). The applied research tool is propensity score matching, enabling to calculate the average treatment effect for the treated (ATT). The study uses data from Polish FADN (Farm Accountancy Data Network) regarding individual farms.
Protandrena (Pterosarus) concinna
Creators: name: Pedro, Diego De
name: Ceccarelli, Fadia Sara
name: Sagot, Philippe
name: López-Reyes, Eulogio
name: Mullins, Jessica L.
name: Mérida-Rivas, Jorge A.
name: Falcon-Brindis, Armando
name: Griswold, Terry
name: Ascher, John S.
name: Gardner, Joel
name: Ayala, Ricardo
name: Vides-Borrell, Eric
name: Vandame, Rémy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Andrenidae
Protandrena
Protandrena concinna

description: Protandrena (Pterosarus) concinna (Fox, 1894)
Endemic
[Lectotype: CASC; ♂ Cerro La Chinche, Baja California Sur, Mexico]
Protandrena concinna is endemic to BCS. Cockerell (1923) first documented this species in Cerro La Chinche in the Tropical Dry Forest of BCS. We reviewed 14 specimens (12 ♀, 2 ♂) collected in the Cape Mountains in La Laguna, Sierra La Laguna in October 1941 (CASC). See fig. 69.
description: Published as part of Pedro, Diego De, Ceccarelli, Fadia Sara, Sagot, Philippe, López-Reyes, Eulogio, Mullins, Jessica L., Mérida-Rivas, Jorge A., Falcon-Brindis, Armando, Griswold, Terry, Ascher, John S., Gardner, Joel, Ayala, Ricardo, Vides-Borrell, Eric & Vandame, Rémy, 2024, Revealing the Baja California Peninsula's Hidden Treasures: An Annotated checklist of the native bees (Hymenoptera: Apoidea: Anthophila), pp. 1-391 in Zootaxa 5522 (1) on page 126, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
Additional file 2 of A multi-centre, parallel-group, randomised controlled trial to assess the efficacy and safety of eurythmy therapy and tai chi in comparison with standard care in chronically ill elderly patients with increased risk of falling (ENTAiER): a trial protocol
Creators: name: Kienle, G. S.
name: P. G. Werthmann
name: B. Grotejohann
name: K. Kaier
name: I. Steinbrenner
name: S. Voigt-Radloff
name: R. Huber
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: Supplementary file 2. Self designed questionnaire Initial German_ENTAiER: Eingangsfragen.
Solving the $106$ years old $3^k$ points problem with the clockwise-algorithm
Creators: name: Ripà, Marco
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 05C85 (Primary) 05C57, 68R10 (Secondary)

description: In this paper, we present the clockwise-algorithm that solves the extension in $k$-dimensions of the infamous nine-dot problem, the well-known two-dimensional thinking outside the box puzzle. We describe a general strategy that constructively produces minimum length covering trails, for any $k \in \mathbb{N}-\{0\}$, solving the NP-complete $(3 \times 3 \times \cdots \times 3)$-point problem inside $3 \times 3 \times \cdots \times 3$ hypercubes. In particular, using our algorithm, we explicitly draw different covering trails of minimal length $h(k)=\frac{3^k-1}{2}$, for $k=3, 4, 5$. Furthermore, we conjecture that, for every $k \geq 1$, it is possible to solve the $3^k$-point problem with $h(k)$ lines starting from any of the $3^k$ nodes, except from the central one. Finally, we cover a $3 \times 3 \times 3$ grid with a tree of size $12$.
description: 17 pages, 12 figures. A video animation of the solution from 1 to 4 dimensions can be found on YouTube (https://www.youtube.com/watch?v=SSL9R0hQRKM)
Lectures on multiloop calculations
Creators: name: Grozin, A. G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I discuss methods of calculation of propagator diagrams (massless, those of Heavy Quark Effective Theory, and massive on-shell diagrams) up to 3 loops. Integration-by-parts recurrence relations are used to reduce them to linear combinations of basis integrals. Non-trivial basis integrals have to be calculated by some other method, e.g., using Gegenbauer polynomial technique. Many of them are expressed via hypergeometric functions; in the massless and HQET cases, their indices tend to integers at $ε\to0$. I discuss the algorithm of their expansion in $ε$, in terms of multiple $ζ$ values. These lectures were given at Calc-03 school, Dubna, 14--20 June 2003.
description: 52 pages, 49 figures. Lectures at Calc-03 school, Dubna, 14--20 June 2003. v2: 2 references added, minor typos corrected. v3: methodical improvements, typo in eq. (3.19) corrected, 2 references added
Protandrena (Pterosarus) californica
Creators: name: Pedro, Diego De
name: Ceccarelli, Fadia Sara
name: Sagot, Philippe
name: López-Reyes, Eulogio
name: Mullins, Jessica L.
name: Mérida-Rivas, Jorge A.
name: Falcon-Brindis, Armando
name: Griswold, Terry
name: Ascher, John S.
name: Gardner, Joel
name: Ayala, Ricardo
name: Vides-Borrell, Eric
name: Vandame, Rémy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Andrenidae
Protandrena
Protandrena californica

description: Protandrena (Pterosarus) californica (Cresson, 1878)
[Lectotype: ANSP; ♂ California, USA]
This species is distributed throughout the CFP. In BC, it was recorded in the Coastal Sage Matorral near Ensenada City and Santo Tomas in April 1941 (Cockerell 1941). See fig. 69.
description: Published as part of Pedro, Diego De, Ceccarelli, Fadia Sara, Sagot, Philippe, López-Reyes, Eulogio, Mullins, Jessica L., Mérida-Rivas, Jorge A., Falcon-Brindis, Armando, Griswold, Terry, Ascher, John S., Gardner, Joel, Ayala, Ricardo, Vides-Borrell, Eric & Vandame, Rémy, 2024, Revealing the Baja California Peninsula's Hidden Treasures: An Annotated checklist of the native bees (Hymenoptera: Apoidea: Anthophila), pp. 1-391 in Zootaxa 5522 (1) on page 126, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
Future changes in land and atmospheric variables: An analysis of their couplings in the Iberian Peninsula
Creators: name: Ojeda, Matilde García-Valdecasas
name: Yeste, Patricio
name: Gámiz-Fortis, Sonia Raquel
name: Castro-Díez, Yolanda
name: Esteban-Parra, María Jesús
Publisher: name: arXiv
Year: 2024
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: This work investigates climate--projections over a transitional region between dry and wet climates, the Iberian Peninsula (IP). With this purpose, the Weather Research and Forecasting (WRF) model, driven CCSM4 and MPI-ESM-LR GCMs previously bias-corrected, was used. Simulations were carried out for two periods, 1980-2014 and 2071-2100, and under RCP4.5 and RCP8.5. The analysis focused on changes in land-surface processes, their causes, and the potential impact on the climate system. To achieve this, seasonal projected changes of land-surface (soil moisture and surface evapotranspiration) and atmospheric variables involved in the hydrologic (precipitation and runoff) and energy balance (temperature and solar incoming radiation) were investigated. The results reveal that the IP is likely to experience a soil dryness by the end of the 21st century, particularly during summer and fall, more apparent in the southern IP, and stronger under the RCP8.5. However, such trends would have different implications throughout the year and directly affect the surface evapotranspiration. Moreover, soil-drying trends are mainly associated with reductions in the large-scale precipitation during spring, summer, and fall and by enhanced evapotranspiration particularly in spring over the northwestern IP. In addition, the results show notably changes in soil conditions at high altitude, particularly during winter, which may alter the land-atmosphere processes that currently occur in these regions. In this context, noteworthy changes in the climate system are expected, leading to adverse impacts on water resources and temperature. The results highlight the complex and nonlinear nature of land-atmosphere interactions in regions such as the IP, which is a tremendous challenge for adequately developing mitigation and adaptation strategies to anthropogenic climate change.
Anthophora (Anthophoroides) kellieae Engel 2023
Creators: name: Pedro, Diego De
name: Ceccarelli, Fadia Sara
name: Sagot, Philippe
name: López-Reyes, Eulogio
name: Mullins, Jessica L.
name: Mérida-Rivas, Jorge A.
name: Falcon-Brindis, Armando
name: Griswold, Terry
name: Ascher, John S.
name: Gardner, Joel
name: Ayala, Ricardo
name: Vides-Borrell, Eric
name: Vandame, Rémy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Anthophora
Anthophora kellieae

description: Anthophora (Anthophoroides) kellieae Engel, 2023
[Holotype: SEMC; ♂ 10 km west Maricopa, Pinal Co., Arizona, USA; March 15, 1989]
This species is present in both BC and BCS and is abundant in March and April; however, there is a single record from November of 2020 that suggests a potential bivoltine nature. Engel (2023) reported this species in BC (no locality) and BCS in the Vizcaíno Desert and the Sarcocaulescent Shrubland. We found records of this species from the Coastal Sage Matorral, Lower Colorado Desert, Succulent Coastal Matorral, Central Desert, Gulf Coast, and the Magdalena Plains. We examined two males collected in the Succulent Coastal Matorral in March 1960 and Vizcaíno Desert in April 1976 (EMEC). Additionally, recently captured specimens are vouchered at ECOAB, and MABC (Supplementary material 1). See fig. 70.
description: Published as part of Pedro, Diego De, Ceccarelli, Fadia Sara, Sagot, Philippe, López-Reyes, Eulogio, Mullins, Jessica L., Mérida-Rivas, Jorge A., Falcon-Brindis, Armando, Griswold, Terry, Ascher, John S., Gardner, Joel, Ayala, Ricardo, Vides-Borrell, Eric & Vandame, Rémy, 2024, Revealing the Baja California Peninsula's Hidden Treasures: An Annotated checklist of the native bees (Hymenoptera: Apoidea: Anthophila), pp. 1-391 in Zootaxa 5522 (1) on page 127, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
Additional file 3 of A multi-centre, parallel-group, randomised controlled trial to assess the efficacy and safety of eurythmy therapy and tai chi in comparison with standard care in chronically ill elderly patients with increased risk of falling (ENTAiER): a trial protocol
Creators: name: Kienle, G. S.
name: P. G. Werthmann
name: B. Grotejohann
name: K. Kaier
name: I. Steinbrenner
name: S. Voigt-Radloff
name: R. Huber
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 3: Supplementary file 3. Self designed questionnaire month 6 English_ENTAiER: Questions About the Last 6 Months.
Per capita food consumption trends in Ukraine
Creators: name: Seheda, Serhii
name: Seheda, Serhii
Publisher: name: Unknown
Year: 2018
Subjects: subject: Demand and Price Analysis
subject: per capita food consumption
subject: agrarian food market
subject: average annual income
subject: correlation analysis

description: The overall objective of this study was to analyze per capita food consumption trends in Ukraine from 1991 to 2016 and estimate the main factors responsible for its changes. According to the study per capita food consumption has shown a "gap" during the period of 1991-2001 years. The next decade was characterized by rising with a "peak" in 2013-2014. The main factors influencing on food consumption were the average annual nominal wage adjusted by consumer price index and absolute share of income spend on food. The report has emphasized the importance of providing deep global reforms of Ukrainian economic.
Additional file 1 of Overcoming language barriers in paramedic care: a study protocol of the interventional trial ‘DICTUM rescue’ evaluating an app designed to improve communication between paramedics and foreign-language patients
Creators: name: Noack, Eva Maria
name: Kleinert, Evelyn
name: Müller, Frank
Publisher: name: figshare
Year: 2020
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences

description: Additional file 1. Questionnaire to assess the experience of paramedics on rescue missions with non-German-speaking patients (translated from German).
Sequential adaptive sampling designs to estimate abundance in rare populations
Creators: name: Lan, Feng
Publisher: name: American University
Year: 2023

description: A sampling design is a procedure by which a sample is selected and estimator is derived in order to estimate a characteristic of the population. The basic problem of sampling is to estimate some characteristic of a population by observing only part of the population. This study is concerned with the problem of designing sampling schemes for rare populations that exhibit patterns of clustering or patchiness related to habitat availability or intrinsic factors. Recent developments, such as adaptive cluster sampling (Thompson, 1990) have been shown to be a useful application for rare, clustered populations. However, in his design the use of it requires the decision of initial sample size. And the common estimators are not optimal in the sense of having the smallest variance among a set of possible estimators. Further, the design has very low efficiency relative to comparable conventional designs when the population is neither rare nor highly clustered (Christman, 1997). There is a positive probability that a sample will result in an estimate of zero abundance. Brown (1994) modified adaptive cluster sampling in which selection of units for the initial sample continues until a fixed final sample size is reached. This controls the sample size but at the cost of introducing bias into estimation of the population total. This study explores the methodologies and applications of sequential adaptive sampling. Unbiased estimators of the population total are attained under the positive aspects of the adaptive sampling and sequential selection of the initial sampling units by controlling the number of clusters sampled in the population. Several sampling designs are described. They incorporate an adaptive component. For each design, estimators and measures of their accuracy will be obtained. Comparisons of the mean squared errors are conducted to find the optimal estimator. These comparisons are analytic where the equations allow and through simulations otherwise.
Asymptotic States of Accelerated Qubits with Nonzero Background Temperature
Creators: name: Lima, A. P. C. M.
name: Alencar, G.
name: Landim, R. R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The study of the Unruh effect naturally raises the interest for a deeper understanding of the analogy between temperature and acceleration. A recurring question is whether an accelerated frame can be distinguished from an inertial thermal bath in pure thermodynamic experiments, such problem has been approached in the literature and a consensus is yet to be fully reached. In the present work we use the open quantum system formalism to investigate the case where both acceleration and background temperature are present. We find the asymptotic state density and entanglement generation from the Markovian evolution of accelerated qubits interacting with a thermal state of the external scalar field. Our results suggest that there is a very small asymmetry on the effects of the Unruh and background temperatures. Addressing the nonzero background temperature case is of both theoretical and phenomenological interest, thus the authors hope to enrich the existing discussions on the topic.
description: 5 figures(3 captioned). An improved version of this preprint has been accepted for publication in PRD on May 28, 2020
Phygital Retailing in Fashion. Experiences, Opportunities and Innovation Trajectories
Creators: name: Iannilli, Valeria M.
name: Spagnoli, Alessandra
Publisher: name: ZoneModa Journal
Year: 2021

description: The digital and technological transformation, whose effects have profoundly influenced the last two decades, and which has recently undergone a sudden acceleration, changed how fashion brands produce, sells and communicate and also how individuals come into contact with fashion, experience, share, and “consume” it. Within this framework, fashion has progressively embraced and incorporated technologies in the retail system opening up to new opportunities in terms of communication and distribution strategies, pushing towards an increased integration between physical and digital systems. In the light of current consumer dynamics, the omnichannel approach is evolving into a phygital one, with the progressive merging of the material and digital dimensions. Retail spaces are undergoing a process of proliferation and integration of channels, multiplication of messages and narratives, increase of services resulting in a new "augmented" scenario. Assuming a design perspective, the paper aims to investigate the nature and the impact of digital transformation in fashion retailing, with a focus on in-store technologies and their relationship with spaces and the customer journey, identifying, starting from the most recent fashion retail concepts, some possible scenarios and innovation trajectories.
description: ZoneModa Journal, Vol. 11 No. 1 (2021): Rethinking Fashion Brands in The Era of Digital Media
Cardano Formula and Some Figurate Numbers
Creators: name: Sparavigna, Amelia Carolina
Publisher: name: Zenodo
Year: 2021
Subjects: Groupoid Representations
On-Line Encyclopedia of Integer Sequences
Cardano formula
Integer Sequences
OEIS

description: Here we apply the Cardano formula to obtain the sequence of the positive integers from the sequences of integer numbers described by the cubic function of n. Examples will be proposed concerning figurate numbers.
Pair-distribution functions of the two-dimensional electron gas
Creators: name: Gori-Giorgi, Paola
name: Moroni, Saverio
name: Bachelet, Giovanni B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Based on its known exact properties and a new set of extensive fixed-node reptation quantum Monte Carlo simulations (both with and without backflow correlations, which in this case turn out to yield negligible improvements), we propose a new analytical representation of (i) the spin-summed pair-distribution function and (ii) the spin-resolved potential energy of the ideal two-dimensional interacting electron gas for a wide range of electron densities and spin polarization, plus (iii) the spin-resolved pair-distribution function of the unpolarized gas. These formulae provide an accurate reference for quantities previously not available in analytic form, and may be relevant to semiconductor heterostructures, metal-insulator transitions and quantum dots both directly, in terms of phase diagram and spin susceptibility, and indirectly, as key ingredients for the construction of new two-dimensional spin density functionals, beyond the local approximation.
description: 12 pages, 10 figures; misprints corrected
Resistivity minimum in diluted metallic magnets
Creators: name: Wang, Zhentao
name: Batista, Cristian D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Resistivity minima are commonly seen in itinerant magnets and they are often attributed to the Kondo effect. However, recent experiments are revealing an increasing number of materials showing resistivity minima in the absence of indications of Kondo singlet formation. In a previous work [Z. Wang, K. Barros, G.-W. Chern, D. L. Maslov, and C. D. Batista, Phys. Rev. Lett. 117, 206601 (2016)], we demonstrated that the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction can produce a classical spin liquid state at finite temperature, whose resistivity increases with decreasing temperature. The classical spin liquid exists over a relatively large temperature window because of the frustrated nature of the RKKY interaction produced by a 2D electron gas. In this work, we investigate the robustness of the RKKY-induced resistivity upturn against site dilution, which provides an alternative, and more robust, way of stabilizing the classical spin liquid state down to T=0. By using series expansions and stochastic Landau-Lifshitz dynamics simulation, we show that site dilution competes with thermal fluctuations and further stabilizes the resistivity upturn, which is accompanied by a negative magnetoresistivity due to suppression of the electron-spin scattering.
description: 15 pages, 15 figures
Scaling Laws in the Distribution of Galaxies
Creators: name: Jones, Bernard J. T.
name: Martinez, Vicent J.
name: Saar, Enn
name: Trimble, Virginia
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Research done during the previous century established our Standard Cosmological Model. There are many details still to be filled in, but few would seriously doubt the basic premise. Past surveys have revealed that the large-scale distribution of galaxies in the Universe is far from random: it is highly structured over a vast range of scales. To describe cosmic structures, we need to build mathematically quantifiable descriptions of structure. Identifying where scaling laws apply and the nature of those scaling laws is an important part of understanding which physical mechanisms have been responsible for the organization of clusters, superclusters of galaxies and the voids between them. Finding where these scaling laws are broken is equally important since this indicates the transition to different underlying physics. In describing scaling laws we are helped by making analogies with fractals: mathematical constructs that can possess a wide variety of scaling properties. We must beware, however, of saying that the Universe is a fractal on some range of scales: it merely exhibits a specific kind of fractal-like behavior on those scales. We exploit the richness of fractal scaling behavior merely as an important supplement to the usual battery of statistical descriptors. We review the history of how we have learned about the structure of the Universe and present the data and methodologies that are relevant to the question of discovering and understanding any scaling properties that structure may have. The ultimate goal is to have a complete understanding of how that structure emerged. We are getting close!
description: 51 pages, 19 figures, 1 table, uses revtex4. To be published in Reviews of Modern Physics
General Relativistic Hydrodynamics on a Moving-mesh I: Static Spacetimes
Creators: name: Chang, Philip
name: Etienne, Zachariah
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present the first-ever moving-mesh general relativistic hydrodynamics solver for static spacetimes as implemented in the code, MANGA. Our implementation builds on the architectures of MANGA and the numerical relativity Python package NRPy+. We review the general algorithm to solve these equations and, in particular, detail the time stepping; Riemann solution across moving faces; conversion between primitive and conservative variables; validation and correction of hydrodynamic variables; and mapping of the metric to a Voronoi moving-mesh grid. We present test results for the numerical integration of an unmagnetized Tolman-Oppenheimer-Volkoff star for 24 dynamical times. We demonstrate that at a resolution of $10^6$ mesh generating points, the star is stable and its central density drifts downward by 2% over this timescale. At a lower resolution the central density drift increases in a manner consistent with the adopted second order spatial reconstruction scheme. These results agree well with the exact solutions, and we find the error behavior to be similar to Eulerian codes with second-order spatial reconstruction. We also demonstrate that the new code recovers the fundamental mode frequency for the same TOV star but with its initial pressure depleted by 10%
description: 10 pages, 4 figures, accepted version, update description of Riemann solver
The impact of budget deficit shocks on the real exchange rate
Creators: name: Shi, Haiyan
Publisher: name: American University
Year: 2023

description: The effect of budget deficit shocks on the real exchange rates has generated empirical controversy since the early 1980s. Studies attempting to quantify the effects of budget deficit shocks on the real exchange rate using the U.S. data produce conflicting results: some support that positive budget deficit shocks lead to real exchange rate appreciation, some find an opposite effect, and others conclude no such effects at all. This dissertation attempts to reconcile the conflicting results by first evaluating three representative models: Feldstein's reduced-form model, Abell's six-variable Vector Autoregression (VAR) model and Karras's Structural VAR model with contemporaneous restrictions. The first two of these models are found to have shortcomings and are corrected. These three models (two modified and one original) are then used to replicate previous work which is extended through 1999. All models are shown to generate supporting evidence for the following conclusion: in the long-run, budget deficit shocks have either no effects or negative effects (if any) on the real exchange rates. However, after replacing the contemporaneous restrictions with long-run restrictions, an approach which receives stronger theoretical support, the deficit shocks do have positive and significant effects on the real exchange rate.
Anthophora (Anthophoroides) californica Cresson 1869
Creators: name: Pedro, Diego De
name: Ceccarelli, Fadia Sara
name: Sagot, Philippe
name: López-Reyes, Eulogio
name: Mullins, Jessica L.
name: Mérida-Rivas, Jorge A.
name: Falcon-Brindis, Armando
name: Griswold, Terry
name: Ascher, John S.
name: Gardner, Joel
name: Ayala, Ricardo
name: Vides-Borrell, Eric
name: Vandame, Rémy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Anthophora
Anthophora californica

description: Anthophora (Anthophoroides) californica Cresson, 1869
[Holotype: ANSP; ♂ California]
Anthophora californica is a common species in the southwestern USA, and northern Mexico. It is a vernal species, often seen in March and April. In BC, it has been recorded in Coastal Sage Matorral, the Succulent Coastal Matorral and the Chaparral in the CFP and in the Lower Colorado Desert and the Central Desert regions of the SD. The BBPT collected specimens in 2020, 2021, 2022, 2023 that are vouchered in MABC, ECOAB (Supplementary material 1). See fig. 70.
description: Published as part of Pedro, Diego De, Ceccarelli, Fadia Sara, Sagot, Philippe, López-Reyes, Eulogio, Mullins, Jessica L., Mérida-Rivas, Jorge A., Falcon-Brindis, Armando, Griswold, Terry, Ascher, John S., Gardner, Joel, Ayala, Ricardo, Vides-Borrell, Eric & Vandame, Rémy, 2024, Revealing the Baja California Peninsula's Hidden Treasures: An Annotated checklist of the native bees (Hymenoptera: Apoidea: Anthophila), pp. 1-391 in Zootaxa 5522 (1) on page 126, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
HS-stability and complex products in involution semigroups
Creators: name: Bodor, Bertalan
name: Lehtonen, Erkko
name: Quinn-Gregson, Thomas
name: Verhulst, Nikolaas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: When does the complex product of a given number of subsets of a group generate the same subgroup as their union? We answer this question in a more general form by introducing HS-stability and characterising the HS-stable involution subsemigroup generated by a subset of a given involution semigroup. We study HS-stability for the special cases of regular ${}^{*}$-semigroups and commutative involution semigroups.
description: 14 pages
The impact of budget deficit shocks on the real exchange rate
Creators: name: Shi, Haiyan
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 38
subject: Economics

description: The effect of budget deficit shocks on the real exchange rates has generated empirical controversy since the early 1980s. Studies attempting to quantify the effects of budget deficit shocks on the real exchange rate using the U.S. data produce conflicting results: some support that positive budget deficit shocks lead to real exchange rate appreciation, some find an opposite effect, and others conclude no such effects at all. This dissertation attempts to reconcile the conflicting results by first evaluating three representative models: Feldstein's reduced-form model, Abell's six-variable Vector Autoregression (VAR) model and Karras's Structural VAR model with contemporaneous restrictions. The first two of these models are found to have shortcomings and are corrected. These three models (two modified and one original) are then used to replicate previous work which is extended through 1999. All models are shown to generate supporting evidence for the following conclusion: in the long-run, budget deficit shocks have either no effects or negative effects (if any) on the real exchange rates. However, after replacing the contemporaneous restrictions with long-run restrictions, an approach which receives stronger theoretical support, the deficit shocks do have positive and significant effects on the real exchange rate.
Beliefs and strategies for coping with stillbirth: A qualitative study in Nigeria
Creators: name: Popoola, Tosin
name: Skinner, Joan
name: Woods, Martin
Publisher: name: Open Access Victoria University of Wellington | Te Herenga Waka
Year: 2022
Subjects: Uncategorized

description: Stillbirth, the loss of a baby during pregnancy or childbirth, is one of the most devastating losses a parent can experience. The experience of stillbirth is associated with trauma and intense grief, but mothers’ belief systems can be protective against the impacts of grief. Women in Nigeria endure a high burden of stillbirth and the aim in this study was to describe the beliefs and strategies for coping with stillbirth. Twenty mothers bereaved by stillbirth in Nigeria were interviewed; seven of them also participated in a focus group. The findings of the study revealed that the experience of stillbirth was influenced by beliefs which originated from superstitions, religion, and social expectations. These beliefs played significant roles in how mothers coped with the loss, by providing them with a framework for sense-making and benefit-finding.
DualTake: Predicting Takeovers across Mobilities for Future Personalized Mobility Services
Creators: name: Zheng, Zhaobo
name: Akash, Kumar
name: Misu, Teruhisa
Publisher: name: arXiv
Year: 2024
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: A hybrid society is expected to emerge in the near future, with different mobilities interacting together, including cars, micro-mobilities, pedestrians, and robots. People may utilize multiple types of mobilities in their daily lives. As vehicle automation advances, driver modeling flourishes to provide personalized intelligent services. Thus, modeling drivers across mobilities would pave the road for future society mobility-as-a-service, and it is particularly interesting to predict driver behaviors in newer mobilities with traditional mobility data. In this work, we present takeover prediction on a micro-mobility, with car simulation data.The promising model performance demonstrates the feasibility of driver modeling across mobilities, as the first in the field.
description: 4 pages, 6 figures. Accepted to IEEE Human Robot Interaction (HRI)
Neural Echos: Depthwise Convolutional Filters Replicate Biological Receptive Fields
Creators: name: Babaiee, Zahra
name: Kiasari, Peyman M.
name: Rus, Daniela
name: Grosu, Radu
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: In this study, we present evidence suggesting that depthwise convolutional kernels are effectively replicating the structural intricacies of the biological receptive fields observed in the mammalian retina. We provide analytics of trained kernels from various state-of-the-art models substantiating this evidence. Inspired by this intriguing discovery, we propose an initialization scheme that draws inspiration from the biological receptive fields. Experimental analysis of the ImageNet dataset with multiple CNN architectures featuring depthwise convolutions reveals a marked enhancement in the accuracy of the learned model when initialized with biologically derived weights. This underlies the potential for biologically inspired computational models to further our understanding of vision processing systems and to improve the efficacy of convolutional networks.
Quasi-one-dimensional system as a high-temperature superconductor
Creators: name: Saraiva, T. T.
name: Cavalcanti, P. J. F.
name: Vagov, A.
name: Vasenko, A. S.
name: Perali, A.
name: Dell'Anna, L.
name: Shanenko, A. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: It is well-known that quasi-one-dimensional superconductors suffer from the pairing fluctuations that significantly reduce the superconducting temperature or even completely suppress any coherent behavior. Here we demonstrate that a coupling to a robust pair condensate changes the situation dramatically. In this case the quasi-one-dimensional system can be a high temperature superconductor governed by the proximity to the Lifshitz transition at which the Fermi level approaches the lower edge of the single-particle spectrum.
description: 5 pages, 1 figure
Anthophora (Anthophoroides) phaceliae Brooks 1988
Creators: name: Pedro, Diego De
name: Ceccarelli, Fadia Sara
name: Sagot, Philippe
name: López-Reyes, Eulogio
name: Mullins, Jessica L.
name: Mérida-Rivas, Jorge A.
name: Falcon-Brindis, Armando
name: Griswold, Terry
name: Ascher, John S.
name: Gardner, Joel
name: Ayala, Ricardo
name: Vides-Borrell, Eric
name: Vandame, Rémy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy

description: Anthophora (Anthophoroides) phaceliae Brooks, 1988
[Holotype: SEMC; ♂ 5 km west of Mix Canyon, about 8 km northwest of Vacaville, Solano Co., California, USA; April 21, 1976]
Anthophora phaceliae is a pollen specialist on plants in the genus Phacelia Juss. Brooks (1988). This species has been recorded in the Baja California Mountains in Sierra San Pedro Mártir. Brooks (1988) reported one specimen collected in Rancho Viejo, Sierra San Pedro Mártir in June 1953. Additionally, SEMC reports one female collected in La Encantada, Sierra San Pedro Mártir in May 1958 (GBIF 2023). See fig. 70.
description: Published as part of Pedro, Diego De, Ceccarelli, Fadia Sara, Sagot, Philippe, López-Reyes, Eulogio, Mullins, Jessica L., Mérida-Rivas, Jorge A., Falcon-Brindis, Armando, Griswold, Terry, Ascher, John S., Gardner, Joel, Ayala, Ricardo, Vides-Borrell, Eric & Vandame, Rémy, 2024, Revealing the Baja California Peninsula's Hidden Treasures: An Annotated checklist of the native bees (Hymenoptera: Apoidea: Anthophila), pp. 1-391 in Zootaxa 5522 (1) on page 128, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
Mathematics and athletics: A winning combination?
Creators: name: Ambruso, Kathleen Lennon
Publisher: name: American University
Year: 2023

description: At the end of the twentieth century, two facts are clear: more women are choosing to study mathematics, and more women are participating in sports. Both mathematics and athletics appear to be male domains. The literature suggested that people attracted to mathematics and sports tend to present more stereotypically masculine traits such as "aggressiveness" and "independence". Lastly, success in mathematics has been linked to spatial ability, in particular to the ability to mentally rotate an object in two-dimensional or three-dimensional space. Participation in sports seemed to enhance this ability. Does this translate into success in the mathematics classroom?; This dissertation intended to discover to what extent participation in athletics influences students of mathematics, with special attention paid to the influence felt by women. Specifically, a comparison between athletes and non-athletes was conducted to see if differences in attitude, achievement, and spatial ability might be revealed. Subjects in this study were students at American University who have completed pre-calculus, applied calculus, calculus I or calculus II. Attitude was measured with the classical Fennema-Sherman Mathematics Attitude Scales as well as the new A-test. In order to measure spatial ability, the subjects were asked to complete a series of mathematics problems that include a spatial component. To compliment the quantitative analysis, in-depth interviews were done. While the quantitative results were not indicative of a gender or athletic bias for many measures of mathematical knowledge, the qualitative analysis suggested otherwise. Specifically, subjects reported feeling that mathematics was perceived as a male domain due to the common media stereotype of a mathematician as well as the lack of female role models in the sciences. However, female athletes tended to view mathematics as a neutral or female domain. Additionally, it would appear that participation in sports benefits women in that female athletes tended to work longer, ask more questions, and attempt to work on non-standard problems. Lastly, subjects reported extreme levels of confidence in mathematics if they were athletes and varying levels of confidence in mathematics for non-athletes.
Indirect Evidence for Neutralinos as Dark Matter
Creators: name: de Boer, W.
name: Herold, M.
name: Sander, C.
name: Zhukov, V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: From the relic density measurement by WMAP the WIMP annihilation cross section can be determined in a model independent way. If the WIMPS are postulated to be the neutralinos of Supersymmetry, then only a limited region of the supersymmetric parameter space matches this annihilation cross section. It is shown that the resulting positrons, antiprotons and gamma rays from the neutralino annihilation (mainly into b-bbar quark pairs) provide the correct shape and order of magnitude for the missing gamma and hard positron fluxes in the Galactic Models and are consistent with antiproton production.
description: 3 pages, 2 figures, prepared for Proc. of EPS 2003 Conf. in Aachen, to be published in EPJ
Mathematics and athletics: A winning combination?
Creators: name: Ambruso, Kathleen Lennon
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3901
subject: Curriculum and pedagogy

description: At the end of the twentieth century, two facts are clear: more women are choosing to study mathematics, and more women are participating in sports. Both mathematics and athletics appear to be male domains. The literature suggested that people attracted to mathematics and sports tend to present more stereotypically masculine traits such as "aggressiveness" and "independence". Lastly, success in mathematics has been linked to spatial ability, in particular to the ability to mentally rotate an object in two-dimensional or three-dimensional space. Participation in sports seemed to enhance this ability. Does this translate into success in the mathematics classroom?; This dissertation intended to discover to what extent participation in athletics influences students of mathematics, with special attention paid to the influence felt by women. Specifically, a comparison between athletes and non-athletes was conducted to see if differences in attitude, achievement, and spatial ability might be revealed. Subjects in this study were students at American University who have completed pre-calculus, applied calculus, calculus I or calculus II. Attitude was measured with the classical Fennema-Sherman Mathematics Attitude Scales as well as the new A-test. In order to measure spatial ability, the subjects were asked to complete a series of mathematics problems that include a spatial component. To compliment the quantitative analysis, in-depth interviews were done. While the quantitative results were not indicative of a gender or athletic bias for many measures of mathematical knowledge, the qualitative analysis suggested otherwise. Specifically, subjects reported feeling that mathematics was perceived as a male domain due to the common media stereotype of a mathematician as well as the lack of female role models in the sciences. However, female athletes tended to view mathematics as a neutral or female domain. Additionally, it would appear that participation in sports benefits women in that female athletes tended to work longer, ask more questions, and attempt to work on non-standard problems. Lastly, subjects reported extreme levels of confidence in mathematics if they were athletes and varying levels of confidence in mathematics for non-athletes.
HOSVD-Based Algorithm for Weighted Tensor Completion
Creators: name: Chao, Zehan
name: Huang, Longxiu
name: Needell, Deanna
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 15A69, 15A83, 65F30, 68P99, 68W20, 65F99

description: Matrix completion, the problem of completing missing entries in a data matrix with low dimensional structure (such as rank), has seen many fruitful approaches and analyses. Tensor completion is the tensor analog, that attempts to impute missing tensor entries from similar low-rank type assumptions. In this paper, we study the tensor completion problem when the sampling pattern is deterministic and possibly non-uniform. We first propose an efficient weighted HOSVD algorithm for recovery of the underlying low-rank tensor from noisy observations and then derive the error bounds under a properly weighted metric. Additionally, the efficiency and accuracy of our algorithm are both tested using synthetic and real datasets in numerical simulations.
Inclusion relations among separability criteria
Creators: name: Batle, J.
name: Plastino, A. R.
name: Casas, M.
name: Plastino, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We revisit the application of different separability criteria by recourse to an exhaustive Monte Carlo exploration involving the pertinent state-space of pure and mixed states. The corresponding chain of implications of different criteria is in such a way numerically elucidated. We also quantify, for a bipartite system of arbitrary dimension, the proportion of states $ρ$ that can be distilled according to a definite criterion. Our work can be regarded as a complement to the recent review paper by B. Terhal [Theor. Comp. Sci. {\bf 287} (2002) 313]. Some questions posed there receive an answer here.
description: Submitted for publication
More accurate simulations with separate initial conditions for baryons and dark matter
Creators: name: Bird, Simeon
name: Feng, Yu
name: Pedersen, Christian
name: Font-Ribera, Andreu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We revisit techniques for performing cosmological simulations with both baryons and cold dark matter when each fluid has different initial conditions, as is the case at the end of the radiation era. Most simulations do not reproduce the linear prediction for the difference between the cold dark matter and baryon perturbations. We show that this is due to the common use of offset regular grids when setting up the particle initial conditions. The correct behaviour can be obtained without any loss of simulation resolution by using a Lagrangian glass for the baryon particles. We further show that the difference between cold dark matter and baryons may affect predictions for the Lyman-alpha forest flux power spectrum at the 5% level, potentially impacting current cosmological constraints.
description: 18 pages, 6 figures. Accepted to JCAP