cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: A CFD ignition model to predict average-cycle combustion in SI engines with extreme EGR levels
Creators: name: Ramognino, Federico
name: Sforza, Lorenzo
name: Lucchini, Tommaso
name: Welch, Cooper
name: Böhm, Benjamin
name: Onorati, Angelo
Publisher: name: SAGE Publications
Year: 2025

description: Control of the combustion process in Spark-Ignition (SI) engines operated with extreme dilution from exhaust gas re-circulation (EGR) represents one of the major limitations in the industrial design of such technology. Numerical approaches able to describe in detail the formation of the early flame kernel become essential to face such an ambitious task. This work presents a RANS-based multi-dimensional model of the combustion process, including an advanced description of the ignition stage to consider its stochastic re-ignitions within the average cycle prediction. The spark-channel is described as a column of Lagrangian parcels that represent early flame kernels, whose growth is controlled by the laminar flame speed and energy input from the electrical circuit. The spatial evolution of each parcel is computed according to a scaled value of the average-flow speed, to mimic the smooth but short elongation of the mean-cycle channel produced by stochastic restrikes affecting the single-cycle arcs. To clarify this phenomenon and assess the proposed CFD method, a series of experiments are performed in a single cylinder SI engine with optical access, running at a low-load cruise-speed operating condition. Increasing EGR levels are tested up to the onset of misfire, with measurements of the secondary-circuit features and of the flame evolution through high-speed imaging. Satisfactory results are achieved in terms of numerical-experimental comparison of the cycle-averaged in-cylinder pressure, discharge parameters, and spatial flame distribution, demonstrating the reliability of the proposed numerical approach.
Optimization of the multi-mem response of topotactic redox La$_{1/2}$Sr$_{1/2}$Mn$_{1/2}$Co$_{1/2}$O$_{3-x}$
Creators: name: Acevedo, W. Román
name: Aguirre, M. H.
name: Ferreyra, C.
name: Sánchez, M. J.
name: Rengifo, M.
name: Bosch, C. A. M. van den
name: Aguadero, A.
name: Noheda, B.
name: Rubi, D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Memristive systems emerge as strong candidates for the implementation of Resistive Random Access Memories (RRAM) and neuromorphic computing devices, as they can mimic the electrical analog behavior or biological synapses. In addition, complementary functionalities such as memcapacitance could significantly improve the performance of bio-inspired devices in key issues such as energy consumption. However, the physics of mem-systems is not fully understood so far, hampering their large-scale implementation in devices. Perovskites that undergo topotactic transitions and redox reactions show improved performance as mem-systems, compared to standard perovskites. In this paper we analyze different strategies to optimize the multi-mem behavior (memristive and memcapacitive) of topotactic redox La$_{1/2}$Sr$_{1/2}$Mn$_{1/2}$Co$_{1/2}$O$_{3-x}$ (LSMCO) films grown on Nb:SrTiO$_3$ (NSTO). We explored devices with different crystallinity (from amorphous to epitaxial LSMCO), out-of-plane orientation ((001) and (110)) and stimulated either with voltage or current pulses. We found that an optimum memory response is found for epitaxial (110) LSMCO stimulated with current pulses. Under these conditions, the system efficiently exchanges oxygen with the environment minimizing, at the same time, self-heating effects that trigger nanostructural and chemical changes which could affect the device integrity and performance. Our work contributes to pave the way for the integration of LSMCO-based devices in cross-bar arrays, in order to exploit their memristive and memcapacitive properties for the development of neuromorphic or in-memory computing devices
description: 15 pages, 10 figures
title: Mega Wall Block Welded Wire Mesh Connection
Creators: name: Loertscher, Tyler B.
Publisher: name: Utah State University
Year: 2015

description: Mechanically Stabilized Earth (MSE) walls restrain hillslopes to unnatural gradients using reinforced soil. Traditional MSE walls are constructed of large reinforced concrete panels bolted to steel strips for soil reinforcement. Segmented Retaining Walls (SRWs) are a form of MSE walls composed of precast concrete modular blocks that incorporate geosynthetic soil reinforcement. In comparison, traditional MSE walls have faster construction times and are typically stronger, but SRWs have increased in popularity because they are much cheaper to build.
There are many precast companies that produce different SRW block designs, these blocks have facing areas that range from 1 to 13.75 sq. ft. and can weigh approximately 90 to 2,000 lbs. There are advantages to both block types that must be addressed during design. Typically construction costs are lower for small blocks because they can be placed by hand rather than using equipment. Large blocks require less construction time but are usually more expensive to fabricate.
Oldcastle is a precast company that has several modular block designs. The newest model called the Mega Wall block is 5.5 feet wide, 2.5 feet tall and weighs approximately 2,000 lbs. The block is designed to accommodate both welded wire mesh and geosynthetics soil reinforcement. Prior to being released to the market design strengths must be determined through laboratory testing.
This report presents the results of the Mega Wall block welded wire mesh connection capacity. Three tests were performed by pulling the welded wire mesh to failure under simulated overburden pressures. Results of the testing show that welds in the wire mesh failed well below the yield strength of the steel. As the wires were pulled, the mesh applied stress concentrations to edges of the concrete grooves. Conical concrete failures were observed in the concrete after each test. After the concrete failed, the mesh was allowed to bend considerably, which began to apply a bending to the welds already experiencing shear stress. This excessive bending deformation caused premature failure in the welds during testing.
In order to achieve higher connection capacities, several modifications to the Mega Wall block design were presented to Oldcastle. These suggestions were acknowledged but not implemented. Oldcastle was not interested in testing modifications to the block and testing was terminated. It is assumed that the Mega Wall block design will not be modified and that Oldcastle will not recommend using the welded wire mesh connection.
Some examples of EP operators
Creators: name: Sharifi, Kamran
Publisher: name: arXiv
Year: 2021
Subjects: subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 47A05, 46L08

description: We give some examples of EP and non-EP operators to show that the main results of Mohammadzadeh Karizakia {\it et al} [Some results about EP modular operators, {\it Linear and Multilinear Algebra}, DOI: 10.1080/03081087.2020.1844613] are not correct even in the case of Hilbert spaces.
PoInTree: A Polar and Interactive Phylogenetic Tree
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2005
Subjects: Algorithms
Databases, Protein
Evolution, Molecular
Phylogeny
Proteins
Sequence Alignment
Sequence Analysis, DNA
Sequence Analysis, Protein
Software

description: PoInTree (Polar and Interactive Tree) is an application that allows to build, visualize and customize phylogenetic trees in a polar interactive and highly flexible view. It takes as input a FASTA file or multiple alignment formats. Phylogenetic tree calculation is based on a sequence distance method and utilizes the Neighbor Joining (NJ) algorithm. It also allows displaying precalculated trees of the major protein families based on Pfam classification. In PoInTree, nodes can be dynamically opened and closed and distances between genes are graphically represented. Tree root can be centered on a selected leaf. Text search mechanism, color-coding and labeling display are integrated. The visualizer can be connected to an Oracle database containing information on sequences and other biological data, helping to guide their interpretation within a given protein family across multiple species. The application is written in Borland Delphi and based on VCL Teechart Pro 6 graphical component (Steema software).
title: Ecology, Problem Framing and Local Land Use Controls: A Case Study of Socio-Ecological Governance in Franklin County, Idaho
Creators: name: Salmore, Alissa
Publisher: name: Utah State University
Year: 2008

description: Due to the continuity of energy and material flows, the persistence of an ecological network necessarily includes a linking of ecological units from local and immediate to regional and broad-ranging scales. Humans are an integral part of ecosystems acting as resource consumers and agents of change, and all systems can be considered combined 'socio-ecological' systems. Where environmental and social systems lack coordination, mismatches between the temporal, spatial or functional scales at which these systems operate lead to resource use inefficiencies and the loss of ecosystem components and functioning. This case study of Franklin County, Idaho documents a recent land use ordinance revision process to offer a critical evaluation of local institutional actions in the face of change. The case study serves to identify scale mismatches between institutional (social) and ecological facets of county governance and to develop potential solutions for those discrepancies.
Because no clear framing of complex land use issues served to coordinate a regulatory strategy for the County, the Comprehensive Plan and Land Development Code remained organized around individual land use issues rather than recognizing multi-scale linkages and limited the potential for cross-scale, cohesive governance of that social-ecological system. Two main influences emerged- the institutional framework and the nature of information used to make decisions. These were significant in contributing to scale mismatch because they shaped institutional problem framing which subsequently set policy outcomes. Despite such institutional limitations and limited problem framing, the findings of this case study imply that the Franklin County government possesses a basic organizational and communicative potential that could be harnessed to improve flexibility and synchronization in the regional governance of linked socioecological processes.
Phase transition and anomalous electronic behavior in layered dichalcogenide CuS (covellite) probed by NQR
Creators: name: Gainov, R. R.
name: Dooglav, A. V.
name: Penkov, I. N.
name: Mukhamedshin, I. R.
name: Mozgova, N. M.
name: Evlampiev, A. V.
name: Bryzgalov, I. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Nuclear quadrupole resonance (NQR) on copper nuclei has been applied for studies of the electronic properties of quasi-two-dimensional low-temperature superconductor CuS (covellite) in the temperature region between 1.47 and 290 K. Two NQR signals corresponding to two non-equivalent sites of copper in the structure, Cu(1) and Cu(2), has been found. The temperature dependences of copper quadrupole frequencies, line-widths and spin-lattice relaxation rates, which so far had never been investigated so precisely for this material, altogether demonstrate the structural phase transition near 55 K, which accompanies transformations of electronic spectrum not typical for simple metals. The analysis of NQR results and their comparison with literature data show that the valence of copper ions at both sites is intermediate in character between monovalent and divalent states with the dominant of the former. It has been found that there is a strong hybridization of Cu(1) and Cu(2) conduction bands at low temperatures, indicating that the charge delocalization between these ions takes place even in 2D regime. Based on our data, the occurrence of energy gap, charge fluctuations and charge-density waves, as well as the nature of phase transition in CuS are discussed. It is concluded that some physical properties of CuS are similar to those of high-temperature superconductors (HTSC) in normal state.
description: to be published
Efficient Deep Feature Calibration for Cross-Modal Joint Embedding Learning
Creators: name: Xie, Zhongwei
name: Liu, Ling
name: Li, Lin
name: Zhong, Luo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: This paper introduces a two-phase deep feature calibration framework for efficient learning of semantics enhanced text-image cross-modal joint embedding, which clearly separates the deep feature calibration in data preprocessing from training the joint embedding model. We use the Recipe1M dataset for the technical description and empirical validation. In preprocessing, we perform deep feature calibration by combining deep feature engineering with semantic context features derived from raw text-image input data. We leverage LSTM to identify key terms, NLP methods to produce ranking scores for key terms before generating the key term feature. We leverage wideResNet50 to extract and encode the image category semantics to help semantic alignment of the learned recipe and image embeddings in the joint latent space. In joint embedding learning, we perform deep feature calibration by optimizing the batch-hard triplet loss function with soft-margin and double negative sampling, also utilizing the category-based alignment loss and discriminator-based alignment loss. Extensive experiments demonstrate that our SEJE approach with the deep feature calibration significantly outperforms the state-of-the-art approaches.
description: accepted by ACM ICMI 2021 conference
Scalar field-perfect fluid correspondence and nonlinear perturbation equations
Creators: name: Mainini, Roberto
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The properties of dynamical Dark Energy (DE) and, in particular, the possibility that it can form or contribute to stable inhomogeneities, have been widely debated in recent literature, also in association to a possible coupling between DE and Dark Matter (DM). In order to clarify this issue, in this paper we present a general framework for the study of the nonlinear phases of structure formation, showing the equivalence between two possible descriptions of DE: a scalar field ϕself-interacting through a potential V(ϕ) and a perfect fluid with an assigned negative equation of state w(a). This enables us to show that, in the presence of coupling, the mass of DE quanta may increase where large DM condensations are present, so that also DE may partake to the clustering process.
description: 16 pages, accepted for publication in JCAP
Enhancer trapping in zebrafish using the Sleeping Beauty transposon
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2004
Subjects: Animals
DNA Transposable Elements
Embryonic Development
Enhancer Elements, Genetic
Gene Transfer Techniques
Genomics
Germ Cells
Glycoside Hydrolases
Green Fluorescent Proteins
In Situ Hybridization
Motor Neurons
Pilot Projects
Polymerase Chain Reaction
Promoter Regions, Genetic
Sequence Analysis, DNA
Zebrafish

description: Background: Among functional elements of a metazoan gene, enhancers are particularly difficult to find and annotate. Pioneering experiments in Drosophila have demonstrated the value of enhancer "trapping" using an invertebrate to address this functional genomics problem. Results: We modulated a Sleeping Beauty transposon-based transgenesis cassette to establish an enhancer trapping technique for use in a vertebrate model system, zebrafish Danio rerio. We established 9 lines of zebrafish with distinct tissue- or organ-specific GFP expression patterns from 90 founders that produced GFP-expressing progeny. We have molecularly characterized these lines and show that in each line, a specific GFP expression pattern is due to a single transposition event. Many of the insertions are into introns of zebrafish genes predicted in the current genome assembly. We have identified both previously characterized as well as novel expression patterns from this screen. For example, the ET7 line harbors a transposon insertion near the mkp3 locus and expresses GFP in the midbrain-hindbrain boundary, forebrain and the ventricle, matching a subset of the known FGF8-dependent mkp3 expression domain. The ET2 line, in contrast, expresses GFP specifically in caudal primary motoneurons due to an insertion into the poly(ADPribose) glycohydrolase (PARG) locus. This surprising expression pattern was confirmed using in situ hybridization techniques for the endogenous PARG mRNA, indicating the enhancer trap has replicated this unexpected and highly localized PARG expression with good fidelity. Finally, we show that it is possible to excise a Sleeping Beauty transposon from a genomic location in the zebrafish germline. Conclusions: This genomics tool offers the opportunity for large-scale biological approaches combining both expression and genomic-level sequence analysis using as a template an entire vertebrate genome. © 2004 Balciunas et al; licensee BioMed Central Ltd.
Double Parton Distributions Incorporating Perturbative QCD Evolution and Momentum and Quark Number Sum Rules
Creators: name: Gaunt, Jonathan R.
name: Stirling, W. James
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is anticipated that hard double parton scatterings will occur frequently in the collisions of the LHC, producing interesting signals and significant backgrounds to certain single scattering processes. For double scattering processes in which the same hard scale t = ln(Q^2) is involved in both collisions, we require the double parton distributions (dPDFs) D_h^{j_1j_2}(x_1,x_2;t) in order to make theoretical predictions of their rates and properties. We describe the development of a new set of leading order dPDFs that represents an improvement on approaches used previously. First, we derive momentum and number sum rules that the dPDFs must satisfy. The fact that these must be obeyed at any scale is used to construct improved dPDFs at the input scale Q_0, for a particular choice of input scale (Q_0^2 = 1 GeV^2) and corresponding single PDFs (the MSTW2008LO set). We then describe a novel program which uses a direct x-space method to numerically integrate the LO DGLAP equation for the dPDFs, and which may be used to evolve the input dPDFs to any other scale. This program has been used along with the improved input dPDFs to produce a set of publicly available dPDF grids covering the ranges 10^{-6}
description: 41 pages, 14 figures. dPDF grids and code can be found at http://projects.hepforge.org/gsdpdf/ . v4: Removed eps files included by mistake in previous version.
title: Second Language Teaching in the ESL Classroom: The Role of the Teacher
Creators: name: Finlinson, Ariel Serrell
Publisher: name: Utah State University
Year: 2016

description: This portfolio covers what the author believes to be important teaching practices for a teacher in the English as a Second Language classroom, with a specific emphasis on the role of the teacher. The first section of the portfolio contains the author’s teaching philosophy which describes the author’s beliefs of what constitutes good teaching. The beliefs include the importance of using meaning-bearing and comprehensible input in the classroom, the use of task-based activities to facilitate language learning, and understanding the role of the teacher in the classroom. Following are three artifacts that the author wrote during her time in the Master of Second Language Teaching (MSLT) program. First, the language artifact examines the use of feedback in the classroom. Second, the literacy artifact evaluates principles of teaching used in Dual Language Immersion and how these principles are useful for teaching in an English as a Second Language setting. Third, the culture artifact discusses research about request making in the English as a Second Language classroom and explores the most effective teaching methods to teach requests to second language learners. Following these artifacts is an evaluation of the author’s own teaching and how it compares with the author’s beliefs stated in her teaching philosophy. At the conclusion of the portfolio, the author includes three annotated bibliographies covering what the author learned in her research of different topics throughout her time in the MSLT program.
The impact of convective criteria on the properties of massive stars
Creators: name: Sibony, Yves
name: Georgy, Cyril
name: Ekström, Sylvia
name: Meynet, Georges
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the differences between models computed with Ledoux and Schwarzschild criteria on the internal structure, evolutionary track in the Hertzsprung-Russell diagram (HRD), lifetimes, evolution of the surface abundances and velocities, and masses of the He and CO cores. We investigate the consequences on the nature of the supernova (SN) progenitors and the type of SN events, as well as on the yields of light elements. We also study the impact on the outputs of population synthesis models. Models with initial masses between 7 and 120 M$_\odot$ at solar metallicity ($Z$=0.014) and with an initial rotation equal to 0 or 0.4 times the critical velocity at the zero-age main sequence were computed with either the Schwarzschild or the Ledoux criterion until the end of the C-burning phase. Models with initial masses between 15 and 32 M$_\odot$ computed with the Schwarzschild criterion show larger intermediate convective zones attached to the H-burning shell than models computed with the Ledoux criterion. Their CO cores and outer convective zones in the red supergiant (RSG) phase are also smaller. This impacts many outputs of stars during the core He-burning phase. Schwarzschild models have smaller CO cores and outer convective zones in the RSG phase, and their blue-to-red supergiant ratio is much higher than for Ledoux models. They also produce longer crossings of the Hertzsprung gap and favour blue loops. The upper luminosity of RSGs is little affected by the change in the convective criterion. The maximum luminosity of RSG progenitors for type II-P SN events is lowered from 5.2 to 4.95 when the Ledoux criterion is used instead of the Schwarzschild criterion in non-rotating models. The Schwarzschild criterion predicts longer-lasting, less nitrogen-enriched, and faster-rotating Cepheids. Rotational mixing decreases the differences between Schwarzschild and Ledoux models.
description: Accepted for publication in A&A (17 October 2023); 20 pages, 14 figures
On the Hermitian projective line as a home for the geometry of Quantum Theory
Creators: name: Bertram, Wolfgang
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In the paper "Is there a Jordan geometry underlying quantum physics?" (Int. J. Theor. Phys., to appear; arXiv:0801.3069 [math-ph]), generalized projective geometries have been proposed as a framework for a geometric formulation of Quantum Theory. In the present note, we refine this proposition by discussing further structural features of Quantum Theory: the link with associative involutive algebras, and with Jordan-Lie and Lie-Jordan algebas. The associated geometries are (Hermitian) projective lines over an associative algebra; their axiomatic definition and theory will be given in subsequent work with M. Kinyon.
description: submitted to Proceedings of XXVII Workshop on Geometrical Methods in Physics, Bialowieza 2008
Expression level of B- and C-class MADS-box genes is associated with the petaloidy of stamens in cultivated amaryllis (Hippeastrum hybridum)
Creators: name: Li, Xin
name: Wang, Zhen
name: Yang, Liuyan
name: Xu, Junxu
name: Zhang, Yongchun
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: One of the most important attributes of Hippeastrum hybridum (amaryllis) flower is its double-flower trait, which is partly derived from the petaloidy of its stamens. Three types of floral organs in whorl 3 of double flowers from H. hybridum cv. Jewel, namely normal stamens, partly petaloid stamens, and completely petaloid stamens, were sampled for RNA-seq analysis to identify candidate genes related to the petaloidy of stamens. 12,584 differentially expressed genes between normal stamens and petaloid stamens were obtained, in which several MADS-box genes and a series of genes related to morphogenesis, pigment, and cell wall development were identified. Quantitative real-time PCR analysis of nine MADS-box genes clustered to the ABCE-class was performed in three cultivars ‘Jewel’, ‘Merry Christmas’, and ‘Red Nymph’. Consistent with the transcriptome data, higher expression of the B-class genes HhAP3.2 and HhPI1, but lower expression of the C-class gene HhAG1 was observed in petaloid stamens than those in normal stamens, and this trend was enhanced with an increase in the degree of petaloidy. These results suggest that the expression level of B- and C-class MADS-box genes is associated with the petaloidy of stamens in H. hybridum, which provide candidate genes for double-flower breeding in H. hybridum.
The planetary biology of cytochrome P450 aromatases
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2004
Subjects: Amino Acid Sequence
Animals
Aromatase
Cattle
Earth, Planet
Evolution, Molecular
Genome
Molecular Sequence Data
Sequence Homology, Amino Acid
Swine

description: Background: Joining a model for the molecular evolution of a protein family to the paleontological and geological records (geobiology), and then to the chemical structures of substrates, products, and protein folds, is emerging as a broad strategy for generating hypotheses concerning function in a post-genomic world. This strategy expands systems biology to a planetary context, necessary for a notion of fitness to underlie (as it must) any discussion of function within a biomolecular system. Results: Here, we report an example of such an expansion, where tools from planetary biology were used to analyze three genes from the pig Sus scrofa that encode cytochrome P450 aromatases-enzymes that convert androgens into estrogens. The evolutionary history of the vertebrate aromatase gene family was reconstructed. Transition redundant exchange silent substitution metrics were used to interpolate dates for the divergence of family members, the paleontological record was consulted to identify changes in physiology that correlated in time with the change in molecular behavior, and new aromatase sequences from peccary were obtained. Metrics that detect changing function in proteins were then applied, including KA/KS values and those that exploit structural biology. These identified specific amino acid replacements that were associated with changing substrate and product specificity during the time of presumed adaptive change. The combined analysis suggests that aromatase paralogs arose in pigs as a result of selection for Suoidea with larger litters than their ancestors, and permitted the Suoidea to survive the global climatic trauma that began in the Eocene. Conclusions: This combination of bioinformatics analysis, molecular evolution, paleontology, cladistics, global climatology, structural biology, and organic chemistry serves as a paradigm in planetary biology. As the geological, paleontological, and genomic records improve, this approach should become widely useful to make systems biology statements about high-level function for biomolecular systems. © 2004 Gaucher et al; licensee BioMed Central Ltd.
On the reliability of mass-loss-rate estimates for AGB stars
Creators: name: Ramstedt, Sofia
name: Schoeier, Fredrik L.
name: Olofsson, Hans
name: Lundgren, Andreas A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the recent literature there has been some doubt as to the reliability of CO multi-transitional line observations as a mass-loss-rate estimator for AGB stars. Mass-loss rates for 10 intermediate- to high-mass-loss-rate AGB stars are derived using a detailed non-LTE, non-local radiative transfer code based on the Monte-Carlo method to model the CO radio line intensities. The circumstellar envelopes are assumed to be spherically symmetric and formed by constant mass-loss rates. The energy balance is solved self-consistently and the effects of dust on the radiation field and thermal balance are included. An independent estimate of the mass-loss rate is also obtained from the combination of dust radiative transfer modelling with a dynamical model of the gas and dust particles. We find that the CO radio line intensities and shapes are successfully reproduced for the majority of our objects assuming a constant mass-loss rate. Moreover, the CO line intensities are only weakly dependent on the adopted micro-turbulent velocity, in contrast to recent claims in the literature. The two methods used in the present work to derive mass-loss-rates are consistent within a factor of ~3 for intermediate- to high-mass-loss-rate objects, indicating that this is a lower limit to the uncertainty in present mass-loss-rate estimates. We find a tentative trend with chemistry. Mass-loss rates from the dust/dynamical model are systematically higher than those from the CO model for the carbon stars and vice versa for the M-type stars. This could be ascribed to a discrepancy in the adopted CO/H_2-abundance ratio, but we caution that the sample is small and systematic errors cannot be excluded.
description: 18 pages, 17 figures, accepted for publication in A&A
Protoplanetary disks in $K_s$-band total intensity and polarized light
Creators: name: Ren, Bin B.
name: Benisty, Myriam
name: Ginski, Christian
name: Tazaki, Ryo
name: Wallack, Nicole L.
name: Milli, Julien
name: Garufi, Antonio
name: Bae, Jaehan
name: Facchini, Stefano
name: Ménard, François
name: Pinilla, Paola
name: Swastik, C.
name: Teague, Richard
name: Wahhaj, Zahed
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Diverse protoplanetary disk morphology can result from planet-disk interaction, suggesting planetary presence. To date, most scattered light imaging campaigns have probed polarized light, which is only a fraction of the total light and not very sensitive to planets. To observe and characterize protoplanetary disk systems in the near-infrared in both polarized and total intensity light, we carried out an unprecedented study of scattering properties of disks, as well as of any planetary companions. Using SPHERE with star-hopping at the Very Large Telescope, we observed 29 disk hosts and their reference stars in $K_s$-band polarized light. We extracted disks in total intensity by adopting the data imputation concept with sequential non-negative matrix factorization (DI-sNMF). We obtained high-quality disk images in total intensity for 15 systems and in polarized light for 23.
 For well-recovered disks in polarized light and total intensity, we parameterized the polarization fraction phase functions using scaled beta distribution: the peak of polarization fraction tentatively correlates with the peak scattering angle, which could be reproduced using certain compact dust, yet more detailed modeling studies are needed. We investigated the empirical DI-sNMF detectability of disks using logistic regression: total intensity detectability of disks primarily depends on host star brightness. For disks with SPHERE data in $Y$-/$J$-/$H$-band, we summarized their polarized color at ~90 deg scattering angle: most of disks are blue in polarized $J-K_s$ color, and they are relatively redder as stellar luminosity increases, indicating larger scatterers. High-quality disk imagery in both total intensity and polarized light thus allows for disk characterization in polarization fraction, and reduces the confusion between disk and planetary signals.
description: 25 pages, 16 figures, 3 tables, A&A accepted. Data files in FITS format will be publicly available
A logico-linguistic inquiry into the foundations of physics: Part I
Creators: name: Majhi, Abhishek
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Physical dimensions are {\it not numbers}, but used as {\it numbers} to perform dimensional analysis by the physicist. The law of excluded middle falls short of explaining the contradictory meanings of the same symbols. The statements like ``$r\to 0$'', ``$q\to 0$'', used by the physicist, are inconsistent on dimensional grounds because ``$r$'', ``$q$'' represent {\it quantities} with physical dimensions of $[L], [Q]$ respectively and ``$0$'' represents just a number devoid of physical dimension. Consequently, the involvement of the statement ``$\lim_{q\to 0}$, where $q$ is the test charge'' in the definition of electric field leads to either circular reasoning or a contradiction regarding the experimental verification of the smallest charge in the Millikan-Fletcher oil drop experiment. Considering such issues as problematic, by choice, I make an inquiry regarding the basic language in terms of which physics is written, with an aim of exploring how truthfully the verbal statements can be converted to the corresponding physico-mathematical expressions (involving physical dimensions). Necessarily I demonstrate the meaning of the terms ``self inquiry'', ``middle way'', ``dependent origination'', ``emptiness/relational existence'', which signify the basic tenets of Buddhism. In light of this, I explain my view of ``definition''; the relation among quantity, physical dimension and number; the logico-linguistic fallacy of ``zero quantity''; difference between unit and unity. I present a critical analysis of the definitions of electric field due to Maxwell and Jackson. A postulate regarding the existence of charges becomes necessary which, however, resolves the contradiction regarding the oil drop experiment. This work is an appeal for the dissociation of the categorical disciplines of logic and physics and on the large, a fruitful merger of Eastern philosophy and Western science.
description: 56 pages, 2 figures
Orthogonal polynomials of compact simple Lie groups
Creators: name: Nesterenko, Maryna
name: Patera, Jiri
name: Tereszkiewicz, Agnieszka
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Recursive algebraic construction of two infinite families of polynomials in $n$ variables is proposed as a uniform method applicable to every semisimple Lie group of rank $n$. Its result recognizes Chebyshev polynomials of the first and second kind as the special case of the simple group of type $A_1$. The obtained not Laurent-type polynomials are proved to be equivalent to the partial cases of the Macdonald symmetric polynomials. Basic relation between the polynomials and their properties follow from the corresponding properties of the orbit functions, namely the orthogonality and discretization. Recurrence relations are shown for the Lie groups of types $A_1$, $A_2$, $A_3$, $C_2$, $C_3$, $G_2$, and $B_3$ together with lowest polynomials.
description: 34 pages, some minor changes were done, to appear in IJMMS
A global view on star formation: The GLOSTAR Galactic plane survey. IX. Radio Source Catalog III: 2
Creators: name: Yang, A. Y.
name: Dzib, S. A.
name: Urquhart, J. S.
name: Brunthaler, A.
name: Medina, S. -N. X.
name: Menten, K. M.
name: Wyrowski, F.
name: Ortiz-León, G. N.
name: Cotton, W. D.
name: Gong, Y.
name: Dokara, R.
name: Rugel, M. R.
name: Beuther, H.
name: Pandian, J. D.
name: Csengeri, T.
name: Veena, V. S.
name: Roy, N.
name: Nguyen, H.
name: Winkel, B.
name: Ott, J.
name: Carrasco-Gonzalez, C.
name: Khan, S.
name: Cheema, A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: As part of the GLOSTAR (GLObal view of STAR formation in the Milky Way) survey, we present the high-resolution continuum source catalog for the regions (l = 2-28, 36-40, 56-60, &|b|<1.0), observed with the Karl G. Jansky Very Large Array (VLA) in its B-configuration. The continuum images are optimized to detect compact sources on angular scales up to 4", and have a typical noise level of 1sigma ~ 0.08mJy/beam for an angular resolution of 1", which makes GLOSTAR currently the highest resolution as well as the most sensitive radio survey of the northern Galactic plane at 4-8GHz. We extracted 13354 sources above a threshold of 5sigma and 5437 sources above 7sigma that represent the high-reliability catalog. We determined the in-band spectral index (alpha) for the sources in the 7sigma-threshold catalog. The mean value is alpha=-0.6, which indicates that the catalog is dominated by sources emitting non-thermal radio emission. We identified the most common source types detected in radio surveys: 251 HII region candidates (113 new), 282 planetary nebulae (PNe) candidates (127 new), 784 radio star candidates (581 new), and 4080 extragalactic radio source candidates (2175 new). A significant fraction of HII regions and PNe candidates have alpha<-0.1 indicating that these candidates could contain radio jets, winds or outflows from high-mass and low-mass stellar objects. We identified 245 variable radio sources by comparing the flux densities of compact sources from the GLOSTAR survey and the Co-Ordinated Radio `N' Infrared Survey for High-mass star formation (CORNISH), and find that most of them are infrared quiet. The catalog is typically 95% complete for point sources at a flux density of 0.6 mJy (i.e. typical 7sigma level) and the systematic positional uncertainty is <= 0.1". The GLOSTAR data and catalogs are available online at https://glostar.mpifr-bonn.mpg.de.
description: 25pages, 21 figures, has been accepted for publication in Astronomy & Astrophysics (A&A)
Evolution of the D3-brane for dynamical embeddings
Creators: name: Gusin, Pawel
name: Warczewski, Jerzy
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Dirac-Born-Infeld (DBI) action of the 3-dimensional brane for its dynamical embeddings and the gauge fields has been studied. The evolution of both the D3-brane and the ambient space has been obtained. For the special constraint put on the transverse coordinates a family of the contracting and expanding spaces has been found.
Monitoring the adoption of SPI-related best practices. An experience report
Creators: name: Walter, Bartosz
name: Marovic, Branko
name: Garnizov, Ivan
name: Wolski, Marcin
name: Todosijevic, Andrijana
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Software Process Improvement requires significant effort related not only to the identification of relevant issues and providing an adequate response to them, but also to the implementation and adoption of the changes. Best practices provide recommendations to software teams on how to address the identified objectives in practice, based on aggregated experience and knowledge. In the paper, we present the GEANT experience and observations from the process of adopting thebest practices, and present the setting we have been using.
description: 10 pages
title: Competencies Required of High School Distributive Education Students for Entry-Level Employment in Selected Cedar City Businesses
Creators: name: Prince, Mervin W.
Publisher: name: Utah State University
Year: 1979

description: "The preparation of youth to succeed in the world of work is an important objective of the American high school."1 Students enroll in high school distributive education to develop an employable skill. The instructional program provides students with a variety of learning activities related to their occupational goals.
Distributive education has expanded to serve the whole range of distributive occupations, after starting mainly as a means of training retail sales persons. An important characteristic of distributive education has been the necessity for rapid adjustment to the changing business conditions.
title: A Survey of Plants and Animals of Hill and Wendover Bombing Ranges, Western Utah
Creators: name: Fisher, Mary Sue
Publisher: name: Utah State University
Year: 1978

description: The United States Air Force was required by the Sikes Act (16 USC 670 et seq.) to operate Hill and Wendover Bombing Ranges under a Land and Wildlife Management Plan consistent with military objectives. A preliminary biological inventory was conducted to provide basic information necessary for preparation of an appropriate management plan. The inventory was conducted over a one year period utilizing 60 field days on the ground and 30 hours of flying time. A list of vertebrates present on the bombing ranges was formed by general observation of large mammals, birds and reptiles, and trapping of small mammals. A cover map was prepared from ground and aerial observations of vegetation, and aerial photographs. Recommendations for management included construction of raptor nesting platforms and permanent water sources for birds and mammals.
title: Management Studies: Roosevelt City Fire Department and Vehicle Maintenance Division, Roosevelt, Utah
Creators: name: Esplin, Rendal D.
Publisher: name: Utah State University
Year: 1979

description: The recent and rapid development of energy producing natural resources experienced in Utah, Colorado and Wyoming has created major growth problems for roosevelt City as well as all other political subdivisions located within the region. Emphasis on efficient management of public programs has been one of several methods utilized by Roosevelt City to meet the growing demand for municipal services. This is necessary as some services such as fire protection, are managed jointly with other municipalities. Then too, with inflation driving up operating costs, it is essential to carefully control expenditures of all public programs. The management studies conducted on the Roosevelt City Fire Department and Equipment Maintenance Division were designed to identify areas which would benefit form improved management practices and, further, to suggest alternatives for accomplishing these objectives. Results of the studies are as follows:
1. Roosevelt City would benefit significantly from a more equitable distribution of fire department expenditures.
2. Provisions of the joint fire department agreement allows for annual adjustments of departmental costs among the three municipalities. To do this, however, a reporting system is needed to more accurately monitor annual expenditures.
3.Greater inventory control and reporting of equipment maintenance costs to the city administrator is needed by the equipment maintenance department. A program to accomplish this is provided.
4. With more comprehensive vehicle record and reporting system, better budgetary planning and control is possible, and as a result, more efficient use of city revenues can be achieved.
Beurling-Lax type theorems and Cuntz relations
Creators: name: Alpay, D.
name: Colombo, F.
name: Sabadini, I.
name: Schneider, B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Complex Variables (math.CV)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47B32, 30C10

description: We prove various Beurling-Lax type theorems, when the classical backward-shift operator is replaced by a general resolvent operator associated with a rational function. We also study connections to the Cuntz relations. An important tool is a new representation result for analytic functions, in terms of composition and multiplication operators associated with a given rational function. Applications to the theory of de Branges-Rovnyak spaces, also in the indefinite metric setting, are given.
title: Interviewing Process Currently Being Utilized by Cache Valley Businesses in Hiring Office Workers
Creators: name: Grimaldi, Angela M.
Publisher: name: Utah State University
Year: 1979

description: The interview has been the "nerve center" in the hiring process for many years. The job interview has been defined by Heck and O'Neil (1976) as "A process of mutual inquiry between two individuals involving transmission and evaluation of information. Thus, the interview is a direct and mutual process of sharing and evaluating information" (p. 10).
Efficient utilization of an employment interview requires a clear definition of the specific purposes of the interview. First, the interview process is used as a preliminary screening to determine whether a more extensive interview is needed. Second, the interview is used as a primary selection device to dwell further on the characteristics and qualifications of the applicant (Kenter, Lipsett, 1964).
Superconductivity in Luttinger semimetals near the SU(4) limit
Creators: name: Kheirkhah, Majid
name: Herbut, Igor F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We consider the spin-3/2 Luttinger fermions with contact attraction near the SU(4)-symmetric limit of vanishing Luttinger spin-orbit-coupling parameter responsible for band inversion, and at finite chemical potential. In the case of exact SU(4) symmetry the previously considered $s$-wave and five $d$-wave superconducting order parameters together form a six-dimensional irreducible representation which transforms as an antisymmetric tensor under SU(4). In this limit, we find the SU(4) [$\simeq$ SO(6)] symmetry to be spontaneously broken down to the SO(5) at the superconducting transition. When the SU(4) is reduced to the SO(3) by the weak band-inverting kinetic energy term, we show that at low temperatures the superconducting state is $is+d$, with a dominant $s$ and a small $d$ component, and spontaneously broken time-reversal symmetry. Relevance to superconductivity in doped semiconductors with diamond structure is discussed.
description: 10 pages, 1 figure, 1 table