cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Supplementary data for: simultaneous species detection and discovery with environmental DNA metabarcoding: a freshwater mollusk case study
Creators: name: Vanderpool, Dan
name: Wilcox, Taylor
name: Young, Michael
name: Pilgrim, Kristine
name: Schwartz, Michael
Publisher: name: Zenodo
Year: 2023
Subjects: Pyrgulopsis
metabarcoding
eDNA

description: Environmental DNA (eDNA) sampling is a powerful tool for rapidly characterizing biodiversity patterns for specious, cryptic taxa with incomplete taxonomies. One such group that are also of high conservation concern are North American freshwater gastropods. In particular, springsnails of the genus Pyrgulopsis (Family: Hydrobiidae) are prevalent throughout the western United States where >140 species have been described. Many of the described species are narrow endemics known from a single spring or locality and it is believed that there are likely many additional species which have yet to be described. The distribution of these species across the landscape is of interest because habitat loss and degradation, climate change, groundwater mining, and pollution have resulted in springsnail imperilment rates as high as 92%. Determining distributions with conventional sampling methods is limited by the fact that these snails are often <5 mm in length with few distinguishing morphological characters, making them both difficult to detect and to identify. In order to facilitate detection of Pyrgulopsis we developed an eDNA metabarcoding protocol that is both inexpensive and capable of rapid, accurate detection of all known Pyrgulopsis species. When compared with conventional collection techniques, our pipeline consistently resulted in detection at sites previously known to contain Pyrgulopsis springsnails and at a cost per site that is likely to be substantially less than the conventional sampling and individual barcoding that has been done historically. Additionally, because our method uses eDNA extracted from filtered water it is non-destructive and suitable for the detection of endangered species where "no take" restrictions may be in effect. This effort represents both a tool which is immediately applicable to a group of high conservation concern across western North America and a case study in the broader application of eDNA sampling for landscape assessments of cryptic taxa of conservation concern.
description: Funding provided by: United States Department of DefenseCrossref Funder Registry ID: https://ror.org/0447fe631Award Number: SERP Project RC18-1348
description: Dataset includes a 137 taxa alignment of COI sequences in FASTA format.  Sequences were obtained from Genbank, accessions provided in taxon name.  Sequences were aligned using MAFFT 7.215 then partitioned by codon.  The corresponding partion file is provided as well (partition_file.nex). Additionally, this dataset contains the Maximum likelihood phylogeny (Supplementary_Figure_1_SVG.svg) estimated from this alignment using IQTree 2.1.3 with the following command line:

iqtree2 -s Alignment_file.fa  -p partition_file.nex -runs 15 -m MFP+MERGE -B 1000 -nt 2.
Collective excitations in two-dimensional antiferromagnet in strong magnetic field
Creators: name: Syromyatnikov, A. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We discuss spin-$\frac12$ two-dimensional (2D) Heisenberg antiferromagnet (AF) on a square lattice at T=0 in strong magnetic field H near its saturation value $H_c$. A perturbation approach is proposed to obtain spectrum of magnons with momenta not very close to AF vector in the leading order in small parameter $(H_c-H)/H_c$. We find that magnons are well-defined quasi-particles at $H>0.9H_c$ although the damping is quite large near the zone boundary. A characteristic rotonlike local minimum in the spectrum is observed at ${\bf k}=(π,0)$ accompanied by decrease of the damping near $(π,0)$. The suggested approach can be used in discussion of short-wavelength excitations in other 2D Bose gases of particles or quasi-particles.
description: 8 pages, 5 figures. Final version
On the crystallinity of silicate dust in evolving protoplanetary disks due to magnetically driven disk winds
Creators: name: Arakawa, Sota
name: Matsumoto, Yuji
name: Honda, Mitsuhiko
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a novel mechanism for the outward transport of crystalline dust particles: the outward radial drift of pebbles. The dust ring structure is frequently observed in protoplanetary disks. One of the plausible mechanisms of the formation of dust rings is the accumulation of pebbles around the pressure maximum, which is formed by the mass loss due to magnetically driven disk winds. In evolving protoplanetary disks due to magnetically driven disk winds, dust particles can migrate outwardly from the crystallization front to the pressure maximum by radial drift. We found that the outward radial drift process can transport crystalline dust particles efficiently when the radial drift timescale is shorter than the advection timescale. Our model predicts that the crystallinity of silicate dust particles could be as high as 100% inside the dust ring position.
description: 15 pages, 14 figures. Accepted for publication in ApJ
The maintenance of shore-level size gradients in an intertidal snail (Littorina sitkana)
Creators: name: McCormack, Susan Mary Denise
Publisher: name: University of British Columbia
Year: 2010

description: The population size structure of many intertidal animals varies with tidal height so that the mean animal size is increasing or decreasing with tidal height. These size gradients could be produced by growth or survival varying with tidal height, or by animals moving to a preferred tidal level. The body size of the snail, Littorina sitkana, increases steadily with tidal height in rocky high intertidal habitats of British Columbia. To determine how size gradients were maintained in L.sitkana, I quantified how growth, survival, and snail movement varied with tidal height. I studied populations of L.sitkana found on sheltered pebble beach and exposed basaltic shelf habitats. Mark-recapture studies and experimental transplants showed that growth could not have produced the size gradients because snail growth rates in both habitats were as fast or faster at low tidal levels (where the snails were the smallest) than at high tidal levels. However, survival rates were lowest at low tidal levels. On pebble beaches, this was due to size selective predation on large snails by the pile perch, Rhacochilus vacca. On basaltic shelves, heavy wave action at low tidal levels may have caused the poor survival rates. Transplanted snails moved homeward on pebble beaches, but not on basaltic shelves. Reduced survival rates at low tidal levels cause size gradients on basaltic shelves. Size selective predation by fish together with snail movement maintains size gradients on pebble beaches.
Magneto hybrid nanofluid flow with activation energy and chemical reaction through an impermeable stretching elastic cylinder
Creators: name: Sarkar, Amit
name: Das, Kalidas
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Physical Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified

description: This article focuses on the study of incompressible, steady, and electrically-conducting hybrid-nanofluid flow through an impermeable stretching elastic cylinder. The base fluid chosen for the study is water and two nanoparticles, namely Cu and graphene, are used for the hybrid nanofluid, while Cu is used for the usual nanofluid. The system takes into account the presence of a chemical reaction, activation energy, and a magnetic field. A comparative analysis is performed to examine the impact of these factors on the hybrid nanofluid and usual nanofluid. The governing equations are transformed into non-dimensional form using similarity transformation and solved using the RK-4 method. The study utilizes graphs and tables to analyse the influence of relevant factors on the flow profile. The results indicate that the temperature decreases with the activation energy factor but increases with the chemical reaction and curvature factors. Both heat and mass transport processes are enhanced by the activation energy parameter, while the opposite effect is observed for the chemical reaction parameter.
Longitudinal and Transverse Form Factors from $^{12}$C
Creators: name: Majeed, F. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Electron scattering form factors from $^{12}$C have been studied in the framework of the particle-hole shell model. Higher configurations are taken into account by allowing particle-hole excitations from the 1$s$ and 1$p$ shells core orbits up to the 1$f-2p$ shell. The inclusion of the higher configurations modifies the form factors markedly and describes the experimental data very well in all momentum transfer regions.
description: 5 pages, 5 figures, 3 tables, latex
First $β$-decay spectroscopy of $^{135}$In and new $β$-decay branches of $^{134}$In
Creators: name: IDS Collaboration
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The $β$ decay of the neutron-rich $^{134}$In and $^{135}$In was investigated experimentally in order to provide new insights into the nuclear structure of the tin isotopes with magic proton number $Z=50$ above the $N=82$ shell. The $β$-delayed $γ$-ray spectroscopy measurement was performed at the ISOLDE facility at CERN, where indium isotopes were selectively laser-ionized and on-line mass separated. Three $β$-decay branches of $^{134}$In were established, two of which were observed for the first time. Population of neutron-unbound states decaying via $γ$ rays was identified in the two daughter nuclei of $^{134}$In, $^{134}$Sn and $^{133}$Sn, at excitation energies exceeding the neutron separation energy by 1 MeV. The $β$-delayed one- and two-neutron emission branching ratios of $^{134}$In were determined and compared with theoretical calculations. The $β$-delayed one-neutron decay was observed to be dominant $β$-decay branch of $^{134}$In even though the Gamow-Teller resonance is located substantially above the two-neutron separation energy of $^{134}$Sn. Transitions following the $β$ decay of $^{135}$In are reported for the first time, including $γ$ rays tentatively attributed to $^{135}$Sn. In total, six new levels were identified in $^{134}$Sn on the basis of the $βγγ$ coincidences observed in the $^{134}$In and $^{135}$In $β$ decays. A transition that might be a candidate for deexciting the missing neutron single-particle $13/2^+$ state in $^{133}$Sn was observed in both $β$ decays and its assignment is discussed. Experimental level schemes of $^{134}$Sn and $^{135}$Sn are compared with shell-model predictions. Using the fast timing technique, half-lives of the $2^+$, $4^+$ and $6^+$ levels in $^{134}$Sn were determined.
Parametric instabilities in the LCGT arm cavity
Creators: name: Yamamoto, K
name: Uchiyama, T
name: Miyoki, S
name: Ohashi, M
name: Kuroda, K
name: Numata, K
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We evaluated the parametric instabilities of LCGT (Japanese interferometric gravitational wave detector project) arm cavity. The number of unstable modes of LCGT is 10-times smaller than that of Advanced LIGO (U.S.A.). Since the strength of the instabilities of LCGT depends on the mirror curvature more weakly than that of Advanced LIGO, the requirement of the mirror curvature accuracy is easier to be achieved. The difference in the parametric instabilities between LCGT and Advanced LIGO is because of the thermal noise reduction methods (LCGT, cooling sapphire mirrors; Advanced LIGO, fused silica mirrors with larger laser beams), which are the main strategies of the projects. Elastic Q reduction by the barrel surface (0.2 mm thickness Ta$_2$O$_5$) coating is effective to suppress instabilities in the LCGT arm cavity. Therefore, the cryogenic interferometer is a smart solution for the parametric instabilities in addition to thermal noise and thermal lensing.
description: 6 pages,3 figures. Amaldi7 proceedings, J. Phys.: Conf. Ser. (accepted)
A new upper limit on the rare decay  $\eta \rightarrow e^+e^-$
Creators: name: Gumberidze, M.
name: Holzmann, R.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2014
Subjects: Physics

description: GSI Scientific Report 2013 - GSI Report 2014-1
Un approccio alla trigonometria attraverso un percorso storico
Creators: name: Fiocca, Alessandra
Publisher: name: Università degli Studi di ferrara
Year: 2013

description: È noto che la trigonometria è tra le discipline matematiche meno gradite agli studenti. A questa situazione si potrebbe ovviare attraverso un approccio storico che avrebbe, tra l’altro, il grande vantaggio di rendere ragione del perché era, ed è ancora oggi, importante conoscere la trigonometria. Nel presente lavoro si ripercorrono alcune delle principali tappe nello sviluppo della disciplina, dalle prime tavole delle corde contenute nell’Almagesto di Tolomeo, ai contributi degli Indiani e degli Arabi, agli sviluppi in Occidente, fino all’introduzione e alla sistemazione della teoria delle funzioni circolari tra XVII e XVIII secolo.

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An approach to trigonometry from a historical point of view

 It is well known that students of mathematics are rarely attracted to the discipline of trigonometry. This situation may be obviated by the introduction of a historical approach which would have the advantage of demonstrating why it was, and still is, important to study trigonometry. The present work proposes to go back over some of the main steps of the development of the discipline, from the first tables of chords contained in the Algemest by Ptolemy, to the contributions made by the Indians and Arabs, to the developments in the West, up to the introduction and definition of circular functions between the XVII and XVIII centuries.
description: Annali online della Didattica e della Formazione Docente, Vol 4, N° 4 (2012): Didattica e insegnamento della Matematica. Esperienze e proposte
Automation of the Dipole Subtraction Method in MadGraph/MadEvent
Creators: name: Frederix, Rikkert
name: Gehrmann, Thomas
name: Greiner, Nicolas
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the implementation of the dipole subtraction formalism for the real radiation contributions to any next-to-leading order QCD process in the MadGraph/MadEvent framework. Both massless and massive dipoles are considered. Starting from a specific (n+1)-particle process the package provides a Fortran code for all possible dipoles to all Born processes that constitute the subtraction term to the (n+1)-particle process. The output files are given in the usual "MadGraph StandAlone" style using helicity amplitudes.
description: 14 pages, 4 figures
The joint large-scale foreground-CMB posteriors of the 3-year WMAP data
Creators: name: Eriksen, H. K.
name: Dickinson, C.
name: Jewell, J. B.
name: Banday, A. J.
name: Gorski, K. M.
name: Lawrence, C. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using a Gibbs sampling algorithm for joint CMB estimation and component separation, we compute the large-scale CMB and foreground posteriors of the 3-yr WMAP temperature data. Our parametric data model includes the cosmological CMB signal and instrumental noise, a single power law foreground component with free amplitude and spectral index for each pixel, a thermal dust template with a single free overall amplitude, and free monopoles and dipoles at each frequency. This simple model yields a surprisingly good fit to the data over the full frequency range from 23 to 94 GHz. We obtain a new estimate of the CMB sky signal and power spectrum, and a new foreground model, including a measurement of the effective spectral index over the high-latitude sky. A particularly significant result is the detection of a common spurious offset in all frequency bands of ~ -13muK, as well as a dipole in the V-band data. Correcting for these is essential when determining the effective spectral index of the foregrounds. We find that our new foreground model is in good agreement with template-based model presented by the WMAP team, but not with their MEM reconstruction. We believe the latter may be at least partially compromised by the residual offsets and dipoles in the data. Fortunately, the CMB power spectrum is not significantly affected by these issues, as our new spectrum is in excellent agreement with that published by the WMAP team. The corresponding cosmological parameters are also virtually unchanged.
description: 5 pages, 4 figures, submitted to ApJL. Background data are available at http://www.astro.uio.no/~hke under the Research tab
title: Movement ecology and conservation : the case of African vultures
Creators: name: Estevinho Santos Faustino, Cláudia
Publisher: name: University of St Andrews
Year: 2020

description: The movements of critically endangered vultures, equipped with satellite-based tracking devices in Namibia, were inspected using Generalized Additive Models. Models incorporated spatially adaptive (1D and 2D) smooths via the Spatially Adaptive Local Smoothing Algorithm (SALSA) and Complex REgion Spatial Smoother (CReSS) method. The correlated nature of geo-location data was address via robust standard errors. The results of this thorough and integrative study of movement ecology have an unprecedented level of detail, far exceeding what is available in the literature. Namely, vultures were seen throughout Namibia and its five neighbouring countries with three individuals visiting locations farther than 1,000 km from where they were initially seen. Large variability was found both within and between birds. Differences were perceived in four daily movement properties, even though temporal differences were only captured for daily distance travelled (monthly) and daily maximum displacement (seasonally). There was noticeable variation in the size of the areas each bird used from month to month, often showing very little spatial overlap. Home ranges varied greatly; one bird expanded its monthly home range as much as nineteen times its smaller size. Contrastingly, core areas remained sometimes constant. Home ranges were three to five times larger than the respective core areas, clearly indicating a non-uniform use of the environment. The extensive study area (2.3 million sq.km) was characterised using habitat features, climate conditions and indices of human presence. Vegetation index, minimum distance to river and minimum distance to road were consistently important in explaining the probability of bird presence. Nonetheless, each vulture used its environment in its own way. These novel findings support trans-frontier conservation measures, represent crucial support to revise the geographic extent of existing conservation actions and constitute the basis to predict the risk of exposure of vultures to lethal threats or to assess changes under Climate Change scenarios.
Separation of Variables, Quasi-Trigonometric $r$-Matrices and Generalized Gaudin Models
Creators: name: Skrypnyk, Taras
Publisher: name: arXiv
Year: 2021
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We construct two new one-parametric families of separated variables for the classical Lax-integrable Hamiltonian systems governed by a one-parametric family of non-skew-symmetric, non-dynamical $\mathfrak{gl}(2)\otimes \mathfrak{gl}(2)$-valued quasi-trigonometric classical $r$-matrices. We show that for all but one classical $r$-matrices in the considered one-parametric families the corresponding curves of separation differ from the standard spectral curve of the initial Lax matrix. The proposed scheme is illustrated by an example of separation of variables for $N=2$ quasi-trigonometric Gaudin models in an external magnetic field.
L’intégration des pairs aidants dans les équipes de soins en santé mentale
Creators: name: Calabrese, Mathilda
name: Legemah, Karen
name: Zajda, Inès
Publisher: name: Unknown
Year: 0
Subjects: subject: Pair aidant
subject: Savoir expérientiel
subject: Santé mentale
subject: Rétablissement
subject: Intégration
subject: hesav TB SI
subject: Peer helper
subject: Experiential knowledge
subject: Mental health
subject: Recovery
subject: Integration

description: Introduction Le métier de pair aidant n’est pas encore bien compris et reconnu par la population générale, mais plus spécifiquement par les équipes soignantes avec lesquelles ils sont amenés à travailler. Faisant le lien entre les soignants et les patients, le pair tient un rôle important dans leur prise en charge, il est donc de notre devoir d’infirmier de les intégrer au mieux, afin de proposer des soins de qualité centrés sur le patient. Objectif Le but de notre travail est de comprendre les enjeux du travail des pairs aidants, de trouver des moyens permettant de favoriser leur intégration dans les équipes de soins en santé mentale et de valoriser ce métier en Suisse romande, région dans laquelle le métier n’est pas encore très développé, à l’instar du Canada, des États-Unis ou de l’Allemagne. Méthodologie Nous avons fait nos recherches d’articles scientifiques sur les bases de données suivantes : PubMed et Cinhal. Après avoir appliqué nos descripteurs spécifiques, nous avons sélectionné six articles nous permettant de répondre à notre question de recherche. Résultats Nos articles de recherche ont mis en évidence les obstacles à l'intégration des pairs aidants dans les équipes de soins en santé mentale. Nous avons identifié des recommandations permettant de favoriser leur intégration. Les résultats indiquent que la stigmatisation, le manque de clarté quant à leurs responsabilités et la méconnaissance de leur rôle par les équipes sont des facteurs qui compromettent leur intégration. Discussion et Conclusion Le cadre théorique de McCormack et McCance, des soins centrés sur la personne, nous a permis d’analyser et d’étoffer les résultats extraits de nos articles. Ceux-ci ont ensuite été mis en perspective avec ce qui a déjà été mis en place en Suisse romande quant à la formation et au travail des pairs aidants. Cette profession est en pleins essor en Suisse romande et nécessite encore la mise en place de mesures sensibilisant les équipes de soins sur les avantages d’un partenariat avec les pairs.
A comparison of two hospital preadmission preparation programmes for young children
Creators: name: Harper, Jeanine Marie
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this study was to compare a tour-based preadmission preparation programme for young children to a video-tape-based programme. Subjects were 30 English speaking children who were admitted to Surrey Memorial Hospital, a community general hospital in Surrey, B.C. The children were admitted for elective surgery which required an overnight stay. The children and their parents participated in the programmes three days to two weeks prior to the child's scheduled surgery. Half of the children and their parents were taken on a tour of the paediatric ward and laboratory. The other group was shown a video-tape made at the Surrey Memorial Hospital, which depicted the hospitalization of a boy and girl for tonsillectomy and adenoidectomy. Both treatments were followed by a discussion and play period. The two groups were not found to differ on sex, previous hospitalizations, types of surgical procedure, length of stay, length of anaesthesia, or prehospital personality as measured by a modification of the Post-hospital Behavior Questionnaire (Vernon, Schulman, & Foley, 1966). However, the tour group was found to contain more younger children (under 6 years of age) than the video group. No significant differences were found between the two groups on the self-report, behavioural, or physiological outcome measures, except for incidence of postoperative vomiting. The video group vomited less than the tour group. Questions concerning the validity of the Hospital Fears Rating Scale and the modified Posthospital Behavior Questionnaire for this age group are raised in the discussion. Complicating factors, such as small sample size, lack of a control group, and lack of control over physiological data collection are addressed in this chapter. Confounding factors, such as a preoperative teaching class and the discussion groups, are also addressed. Finally, the impact of Preadmission Programmes and practical considerations in choosing a programme are discussed.
Experimental Realization of the 1D Random Field Ising Model
Creators: name: Bingham, N. S.
name: Rooke, S.
name: Park, J.
name: Simon, A.
name: Zhu, W.
name: Zhang, X.
name: Batley, J.
name: Watts, J. D.
name: Leighton, C.
name: Dahmen, K. A.
name: Schiffer, P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have measured magnetic-field-induced avalanches in a square artificial spin ice array of interacting nanomagnets. Starting from the ground state ordered configuration, we imaged the individual nanomagnet moments after each successive application of an incrementally increasing field. The statistics of the evolution of the moment configuration show good agreement with the canonical one-dimensional random field Ising model. We extract information about the microscopic structure of the arrays from our macroscopic measurements of their collective behavior, demonstrating a process that could be applied to other systems exhibiting avalanches.
Morphology of dipolar Bose droplets
Creators: name: Boninsegni, Massimo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The ground state of a free standing, self-bound droplet comprising four hundred dipolar Bose particles with aligned dipole moments, with an additional purely repulsive two-body interaction, is investigated by Quantum Monte Carlo simulations. The focus here is on the evolution of the cluster as the effective range of the repulsive interaction is varied. We identify a ``classical'' regime, in which binding arises exclusively from the dipolar potential energy and the cluster is a quasi-one-dimensional filament, and a ``quantum'' regime of prolate droplets, held together to a significant degree by quantum-mechanical exchanges. The transition between the two regimes occurs abruptly.
description: 7 pages, 5 figures in color
Software Engineering Meets Systems Engineering: Conceptual Modeling Applied to Engineering Operations
Creators: name: Al-Fedaghi, Sabah
name: Modhaffar, Mahdi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Models are fundamentally crucial to many scientific fields, including software engineering, systems engineering, enterprise modeling, and business modeling. This paper focuses on diagrammatic conceptual modeling, as opposed to mathematical or computational models, wherein a conceptual model is a translation of reality processes into an abstract mechanism that has similar structure and parallel events of the external processes. Although various modeling approaches exist, including UML (Unified Modeling Language) in software engineering and its dialect, SysML (System Modeling Language), in systems engineering, several difficulties arise in such models, including the problem of model multiplicity that is related to the lack an integrated view of structure and behavior. This paper generalizes conceptual modeling to be applied in organizations at large. According to authorities, the so-called organization theory portrays organizations as machine-like systems. As a machine, an organization coordinates its parts to transform inputs into outputs. Therefore, we synthesize the notion of an organization as a machine and apply a new modeling methodology called thinging machine (TM) to real engineering operations. The results show the viability of the TM methodology serving as a foundation for high-level modelling of systems.
description: 14 pages, 10 figures
Die Fledermaus: An Exploration of Costume Design Ideas and Process for the Maryland Opera Studio's 2014 Production
Creators: name: Hunt, Kelsey Lynn
Publisher: name: Digital Repository at the University of Maryland
Year: 2014
Subjects: subject: Theater
subject: Costume
subject: Costume Design
subject: Maryland Opera Studio
subject: Opera
subject: Theater
subject: Theatre

description: The following thesis explores the core artistic concepts, design process, and execution of Kelsey Hunt's costume design for the Maryland Opera Studio's production of Die Fledermaus. Die Fledermaus opened April 11th, 2014 in the University of Maryland's Kay Theatre. It was directed by Nicholas Olcott with Edward Maclary as conductor and Alcine Wiltz as choreographer. Sets were designed by Paige Hathaway and Lighting was designed by Robert Denton.
Ultraluminous X-ray Sources in Seven Edge-On Spiral Galaxies
Creators: name: Dage, Kristen C.
name: Vowell, Noah
name: Thygesen, Erica
name: Bahramian, Arash
name: Haggard, Daryl
name: Kovlakas, Konstantinos
name: Kundu, Arunav
name: Maccarone, Thomas J.
name: Strader, Jay
name: Urquhart, Ryan
name: Zepf, Stephen E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigate a sample of seven edge-on spiral galaxies using Chandra observations. Edge-on spiral galaxies allow us to clearly separate source associated with their star-forming regions versus the outer edges of the system; offering a clear advantage over other systems. We uncover a number of X-ray point sources across these galaxies, and after eliminating contaminating foreground and background sources, we identify 12 candidate ultraluminous X-ray sources. All of these sources are projected onto the central regions, implying that the majority of ULXs in this sample of spiral galaxies are disk/bulge, and thus not halo sources. This also includes two transient ULXs, which may be long-duration transients and low mass X-ray binaries. This finding illustrates the need for further studies of transient ULXs.
description: accepted to MNRAS
Emergent charge ordering in near half doped Na$_{0.46}$CoO$_{2}$
Creators: name: Argyriou, D. N.
name: Prokhnenko, O.
name: Kiefer, K.
name: Milne, C. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have utilized neutron powder diffraction to probe the crystal structure of layered Na$_{x}$CoO$_{2}$ near the half doping composition of $x=$0.46 over the temperature range of 2 to 600K. Our measurements show evidence of a dynamic transition in the motion of Na-ions at 300K which coincides with the onset of a near zero thermal expansion in the in-plane lattice constants. The effect of the Na-ordering on the CoO$_{2}$ layer is reflected in the octahedral distortion of the two crystallographically inequivalent Co-sites and is evident even at high temperatures. We find evidence of a weak charge separation into stripes of Co$^{+3.5+ε}$ and Co$^{+3.5-ε}$, $ε\sim0.06e$ below \Tco=150K. We argue that changes in the Na(1)-O bond lengths observed at the magnetic transition at \tm=88K reflect changes in the electronic state of the CoO$_{2}$ layer
description: 7 pages, 6 figures, in press Phys. Rev. B
Effect of energy deposited by cosmic-ray particles on interferometric gravitational wave detectors
Creators: name: Yamamoto, Kazuhiro
name: Hayakawa, Hideaki
name: Okada, Atsushi
name: Uchiyama, Takashi
name: Miyoki, Shinji
name: Ohashi, Masatake
name: Kuroda, Kazuaki
name: Kanda, Nobuyuki
name: Tatsumi, Daisuke
name: Tsunesada, Yoshiki
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We investigated the noise of interferometric gravitational wave detectors due to heat energy deposited by cosmic-ray particles. We derived a general formula that describes the response of a mirror against a cosmic-ray passage. We found that there are differences in the comic-ray responses (the dependence of temperature and cosmic-ray track position) in cases of interferometric and resonant gravitational wave detectors. The power spectral density of vibrations caused by low-energy secondary muons is 100-times smaller than the goal sensitivity of future second-generation interferometer projects, such as LCGT and Advanced LIGO. The arrival frequency of high-energy cosmic-ray muons that generate enough large showers inside mirrors of LCGT and Advanced LIGO is one per a millennium. We also discuss the probability of exotic-particle detection with interferometers.
description: 4 figures
Electric/magnetic duality for chiral gauge theories with anomaly cancellation
Creators: name: De Rydt, Jan
name: Schmidt, Torsten T.
name: Trigiante, Mario
name: Van Proeyen, Antoine
name: Zagermann, Marco
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that 4D gauge theories with Green-Schwarz anomaly cancellation and possible generalized Chern-Simons terms admit a formulation that is manifestly covariant with respect to electric/magnetic duality transformations. This generalizes previous work on the symplectically covariant formulation of anomaly-free gauge theories as they typically occur in extended supergravity, and now also includes general theories with (pseudo-)anomalous gauge interactions as they may occur in global or local N=1 supersymmetry. This generalization is achieved by relaxing the linear constraint on the embedding tensor so as to allow for a symmetric 3-tensor related to electric and/or magnetic quantum anomalies in these theories. Apart from electric and magnetic gauge fields, the resulting Lagrangians also feature two-form fields and can accommodate various unusual duality frames as they often appear, e.g., in string compactifications with background fluxes.
description: 37 pages; v2: typos corrected and 1 reference added
GuideBoot: Guided Bootstrap for Deep Contextual Bandits
Creators: name: Pan, Feiyang
name: Li, Haoming
name: Ao, Xiang
name: Wang, Wei
name: Kang, Yanrong
name: Tan, Ao
name: He, Qing
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: The exploration/exploitation (E&E) dilemma lies at the core of interactive systems such as online advertising, for which contextual bandit algorithms have been proposed. Bayesian approaches provide guided exploration with principled uncertainty estimation, but the applicability is often limited due to over-simplified assumptions. Non-Bayesian bootstrap methods, on the other hand, can apply to complex problems by using deep reward models, but lacks clear guidance to the exploration behavior. It still remains largely unsolved to develop a practical method for complex deep contextual bandits. In this paper, we introduce Guided Bootstrap (GuideBoot for short), combining the best of both worlds. GuideBoot provides explicit guidance to the exploration behavior by training multiple models over both real samples and noisy samples with fake labels, where the noise is added according to the predictive uncertainty. The proposed method is efficient as it can make decisions on-the-fly by utilizing only one randomly chosen model, but is also effective as we show that it can be viewed as a non-Bayesian approximation of Thompson sampling. Moreover, we extend it to an online version that can learn solely from streaming data, which is favored in real applications. Extensive experiments on both synthetic task and large-scale advertising environments show that GuideBoot achieves significant improvements against previous state-of-the-art methods.
description: WWW-2021
Interstellar detection of the simplest aminocarbyne, H2NC: an ignored but abundant molecule
Creators: name: Cabezas, C.
name: Agundez, M.
name: Marcelino, N.
name: Tercero, B.
name: Cuadrado, S.
name: Cernicharo, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the first identification in space of H2NC, a high-energy isomer of H2CN that has been largely ignored in chemical and astrochemical studies. The observation of various unidentified lines around 72.2 GHz in the cold dark cloud L483 motivated the search for, and successful detection of, additional groups of lines in harmonic relation. After an exhaustive high-level ab initio screening of possible carriers, we confidently assign the unidentified lines to H2NC based on the good agreement between astronomical and theoretical spectroscopic parameters and sound spectroscopic and astrochemical arguments. The observed frequencies are used to precisely characterize the rotational spectrum of H2NC. This species is also detected in the cold dark cloud B1-b and the z=0.89 galaxy in front of the quasar PKS1830-211. We derive H2NC/H2CN abundance ratios of 1 in L483 and B1-b and 0.27 toward PKS1830-211. Neither H2NC nor H2CN are detected in the dark cloud TMC-1, which seriously questions a previous identification of H2CN in this source. We suggest that the H2NC/H2CN ratio behaves as the HNC/HCN ratio, with values close to one in cold dense clouds and below one in diffuse clouds. The reactions N + CH3 and C + NH3 emerge as strong candidates to produce H2NC in interstellar clouds. Further studies on these two reactions are needed to evaluate the yield of H2NC. Due to the small number of atoms involved, it should be feasible to constrain the chemistry behind H2NC and H2CN, just as it has been done for HNC and HCN, as this could allow to use the H2NC/H2CN ratio as a probe of chemical or physical conditions of the host clouds.
description: Accepted for publication in A&A
Upper critical fields well above 100 T for the superconductor SmFeAsO$_{0.85}$F$_{0.15}$ with T$_c$ = 46 K
Creators: name: Senatore, C.
name: Cantoni, M.
name: Wu, G.
name: Liu, R. H.
name: Chen, X. H.
name: Flukiger, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report specific heat measurements at magnetic fields up to 20 T on the recently discovered superconductor SmFeAsO$_{0.85}$F$_{0.15}$. The B-T diagram of a polycrystalline SmFeAsO$_{0.85}$F$_{0.15}$ sample with T$_c$ = 46 K was investigated. The temperature dependence of B$_{c2}$ was extracted from the specific heat curves, the corresponding B$_{c2}$(T = 0) value derived from the Werthamer-Helfand-Hohenberg formula being 150 T. Based on magnetization measurements up to 9 T, a first estimation of the field dependence of the inductive critical current J$_c$ is given. Evidence for granularity is found. The presence of a peak effect is reported, suggesting a crossover in the vortex dynamics, in analogy to the behaviour observed in high T$_c$ cuprates.
description: Accepted for publication in Physical Review B
Critical scaling of stochastic epidemic models
Creators: name: Lalley, Steven P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K30, 60H30, 60K35 (Primary)

description: In the simple mean-field SIS and SIR epidemic models, infection is transmitted from infectious to susceptible members of a finite population by independent $p-$coin tosses. Spatial variants of these models are proposed, in which finite populations of size $N$ are situated at the sites of a lattice and infectious contacts are limited to individuals at neighboring sites. Scaling laws for both the mean-field and spatial models are given when the infection parameter $p$ is such that the epidemics are critical. It is shown that in all cases there is a critical threshold for the numbers initially infected: below the threshold, the epidemic evolves in essentially the same manner as its branching envelope, but at the threshold evolves like a branching process with a size-dependent drift.
description: Published at http://dx.doi.org/10.1214/074921707000000346 in the IMS Lecture Notes Monograph Series (http://www.imstat.org/publications/lecnotes.htm) by the Institute of Mathematical Statistics (http://www.imstat.org)
The targum (1945:Oct. 17 - 1945:Oct. 31)
Creators: name: No Name Supplied
Publisher: name: Targum Association
Year: 1945

description: Some University historians indicate that the Targum was first published as an annual in 1867, but of this we have no extant evidence. In January 1869, the Targum as we now know it, made its appearance as a monthly paper that concerned itself with student “literary contributions” and college news as well as serving as a vehicle for bringing news to alumni and the general public. The newspaper, which originally was for sale, varied in frequency over the years as did its title (The Targum, Rutgers Targum, Rutgers Daily Targum, and Daily Targum). The newspaper has continuously been published since 1869 with the exception of 19 months during the second world war, between February 1944 and October 1945. The Targum was published by the students of Rutgers College, and later Rutgers University—New Brunswick represented through the years as the Targum Association, Rutgers Targum Association, and Rutgers College Targum. As a student organization, the Targum operated under the oversight of the dean of students and student government but in October 1980, the Targum became an independent college paper.
Kolmogorov-Sinai entropy and black holes
Creators: name: Ropotenko, Kostyantyn
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is shown that stringy matter near the event horizon of a Schwarzschild black hole exhibits chaotic behavior (the spreading effect) which can be characterized by the Kolmogorov-Sinai entropy. It is found that the Kolmogorov-Sinai entropy of a spreading string equals to the half of the inverse gravitational radius of the black hole. But the KS entropy is the same for all objects collapsing into the black hole. The nature of this universality is that the KS entropy possesses the main property of temperature: it is the same for all bodies in thermal equilibrium with the black hole. The Kolmogorov-Sinai entropy measures the rate at which information about the string is lost as it spreads over the horizon. It is argued that it is the maximum rate allowed by quantum theory. A possible relation between the Kolmogorov-Sinai and Bekenstein-Hawking entropies is discussed.
description: 10 pages, no figures; this is an extended version of my paper arXiv:0711.3131
Interactive SARS-CoV-2 mutation timemaps
Creators: name: Warren, Rene
name: Birol, Inanc
Publisher: name: Zenodo
Year: 2021
Subjects: SARS-CoV-2
COVID-19
Mutation time maps
GISAID
Interactive SVG

description: As the year 2020 came to a close, several new strains have been reported for the SARS-CoV-2 coronavirus, the agent responsible for the COVID-19 pandemic that has afflicted us all this past year. However, it is difficult to comprehend the scale, in sequence space, geographical location and time, at which SARS-CoV-2 mutates and evolves in its human hosts. To get an appreciation for the rapid evolution of the coronavirus, we built interactive scalable vector graphics (SVG) maps that show daily nucleotide variations in genomes from the six most populated continents compared to that of the initial, ground-zero SARS-CoV-2 isolate sequenced at the beginning of the year. The attached compressed file package comprises SARS-CoV-2 mutation timemaps SVG files for 2020 and 2021, updated with data submitted to GISAID as of January 25th 2021 (inclusive). It is a snapshot of the webpage hosting these maps (https://bcgsc.github.io/SARS2) on that day and includes the script and single nucleotide variation (SNV) report files used to generate these and could be used by anyone to generate additional and custom interactive SVG maps. It supplements our F1000research article. The frequently updated SARS-CoV-2 genome SNV reports (https://www.bcgsc.ca/downloads/btl/SARS-CoV-2/mutations) represent a wealth of information that could be mined to gain further insights into the rapid SARS-CoV-2 coronavirus evolution in human hosts.
description: This version contains: updated variant data and maps (feb. 1, 2021) and updated PERL script to generate the maps (no bug fixes, but additional features to improve map interactivity and code refactored).
Ineffectiveness of Padé resummation techniques in post-Newtonian approximations
Creators: name: Mroué, Abdul H.
name: Kidder, Lawrence E.
name: Teukolsky, Saul A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We test the resummation techniques used in developing Padé and Effective One Body (EOB) waveforms for gravitational wave detection. Convergence tests show that Padé approximants of the gravitational wave energy flux do not accelerate the convergence of the standard Taylor approximants even in the test mass limit, and there is no reason why Padé transformations should help in estimating parameters better in data analysis. Moreover, adding a pole to the flux seems unnecessary in the construction of these Padé-approximated flux formulas. Padé approximants may be useful in suggesting the form of fitting formulas. We compare a 15-orbit numerical waveform of the Caltech-Cornell group to the suggested Padé waveforms of Damour et al. in the equal mass, nonspinning quasi-circular case. The comparison suggests that the Padé waveforms do not agree better with the numerical waveform than the standard Taylor based waveforms. Based on this result, we design a simple EOB model by modifiying the ET EOB model of Buonanno et al., using the Taylor series of the flux with an unknown parameter at the fourth post-Newtonian order that we fit for. This simple EOB model generates a waveform having a phase difference of only 0.002 radians with the numerical waveform, much smaller than 0.04 radians the phase uncertainty in the numerical data itself. An EOB Hamiltonian can make use of a Padé transformation in its construction, but this is the only place Padé transformations seem useful.
description: 13 pages, 7 figures. added some references