cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Soft-Collinear Mode for Jet Cross Sections in Soft Collinear Effective Theory
Creators: name: Chien, Yang-Ting
name: Hornig, Andrew
name: Lee, Christopher
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose the addition of a new "soft-collinear" mode to soft collinear effective theory (SCET) below the usual soft scale to factorize and resum logarithms of jet radii $R$ in jet cross sections. We consider exclusive 2-jet cross sections in $e^+e^-$ collisions with an energy veto $Λ$ on additional jets. The key observation is that there are actually two pairs of energy scales whose ratio is $R$: the transverse momentum $QR$ of the energetic particles inside jets and their total energy $Q$, and the transverse momentum $ΛR$ of soft particles that are cut out of the jet cones and their energy $Λ$. The soft-collinear mode is necessary to factorize and resum logarithms of the latter hierarchy. We show how this factorization occurs in the jet thrust cross section for cone and $k_T$-type algorithms at $O(α_s)$ and using the thrust cone algorithm at $O(α_s^2)$. We identify the presence of hard-collinear, in-jet soft, global (veto) soft, and soft-collinear modes in the jet thrust cross section. We also observe here that the in-jet soft modes measured with thrust are actually the "csoft" modes of the theory SCET$_+$. We dub the new theory with both csoft and soft-collinear modes SCET$_{++}$. We go on to explain the relation between the "unmeasured" jet function appearing in total exclusive jet cross sections and the hard-collinear and csoft functions in measured jet thrust cross sections. We do not resum logs that are non-global in origin, arising from the ratio of the scales of soft radiation whose thrust is measured at $Qτ/R$ and of the soft-collinear radiation at $2ΛR$. Their resummation would require the introduction of additional operators beyond those we consider here. The steps we outline here are a necessary part of summing logs of $R$ that are global in nature and have not been factorized and resummed beyond leading-log level previously.
description: 28 pages, 6 figures, uses REVTeX4. v2: discussion clarified; typos fixed; figures improved; theory named; all-orders relations for csoft, soft, and soft-collinear anomalous dimensions derived and extracted to 3-loop order. v3: typos fixed; references added; brief clarifying discussions added to Secs. I, III, and V; Fig. 6 for resummed cross section corrected; conclusions unchanged
Q-branes
Creators: name: Abel, Steven
name: Kehagias, Alex
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Non-topological solitons (Q-balls) are discussed in some stringy settings. Our main result is that the dielectric D-brane system of Myers admits non-abelian Q-ball solutions on their world-volume, in which $N$ D$p$-branes relax to the standard dielectric form outside the Q-ball, but assume a more diffuse configuration at its centre. We also consider how Q-balls behave in the bulk of extra-dimensional theories, or on wrapped branes. We demonstrate that they carry Kaluza-Klein charge and possess a corresponding Kaluza-Klein tower of states just as normal particles, and we discuss surface energy effects by finding exact Q-ball solutions in models with a specific logarithmic potential.
description: 19 pages
Synchronization of Distant Optical Clocks at the Femtosecond Level
Creators: name: Deschenes, Jean-Daniel
name: Sinclair, Laura C.
name: Giorgetta, Fabrizio R.
name: Swann, William C.
name: Baumann, Esther
name: Bergeron, Hugo
name: Cermak, Michael
name: Coddington, Ian
name: Newbury, Nathan R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The use of optical clocks/oscillators in future ultra-precise navigation, gravitational sensing, coherent arrays, and relativity experiments will require time comparison and synchronization over terrestrial or satellite free-space links. Here we demonstrate full unambiguous synchronization of two optical timescales across a free-space link. The time deviation between synchronized timescales is below 1 fs over durations from 0.1 s to 6500 s, despite atmospheric turbulence and kilometer-scale path length variations. Over several days, the time wander is 40 fs peak-to-peak. Our approach relies on the two-way reciprocity of a single-spatial-mode optical link, valid to below 225 attoseconds across a turbulent 4-km path. This femtosecond level of time-frequency transfer should enable optical networks using state-of-the-art optical clocks/oscillators.
description: 19 pages, 9 figures
Current Priorities and Future Directions: A content Analysis of Active Strategic Planning Goals of Public Libraries in the United States
Creators: name: Shields, Alison M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007
Subjects: Public libraries--United States
Public libraries--Strategic planning
Strategic planning

description: A strategic plan articulates an organization's strategy for coping with future change. This study is a content analysis of the goals in 100 active strategic plans from public libraries in the United States. The results show that priorities in the present and in the near future of the public libraries are, in order of importance: providing the services and resources that meet patron needs, infrastructure maintenance and improvement, outreach to community groups and individuals, encouraging lifelong learning and recreation for all ages, becoming an information lifeline for the community, and meeting the needs of underserved populations. Chi-square analysis was also performed to identify associations between the prevalence of a given goal type and community demographic variables. The results provide insight into these libraries' priorities for serving patrons now and in the near future.
Establish a trial protocol for Brassica vegetables using the TraitFinder
Creators: name: Chu, ZW
name: Lin, YP
Publisher: name: World Vegetable Center
Year: 2024
Subjects: subject: BRASSICA OLERACEA BOTRYTIS
subject: INFLORESCENCES
subject: CLIMATE CHANGE
subject: DROUGHT
subject: FLOODING
subject: BREEDING
subject: PHENOTYPES
subject: Cauliflower (Brassica oleracea var. botrytis)
subject: Edible inflorescence
subject: Breeding traits
subject: Abiotic stress
subject: Extreme climate
subject: Drought and flooding
subject: Traditional breeding methods
subject: High-throughput phenotyping
subject: TraitFinder
subject: 3D modeling
subject: Growth parameters
subject: Shading limitations
subject: Phenotyping accuracy
subject: Plant growth conditions
subject: Stress response evaluation

description: Cauliflower (Brassica oleracea L. var. botrytis L.) is one of the popular vegetables humans usually eat. The edible part is its inflorescence which is also the breeding goal. The traits include color, shape, height, and so on. In the event of extreme climate, plants will face more abiotic stress such as drought or flooding. However, the traditional method of breeding selection lacks accuracy and efficiency. Therefore, the invention of a high-throughput phenotyping machine showed up. In this experiment, we will use TraitFinder, an easily movable highthroughput phenotyping machine, to assist the fieldwork. As the result shows, the 3D modeling by TraitFinder has some limitations: inevitable shading parts, and unclear organs behind leaves. In the case of the abiotic stress response, the growth parameter truly reflects the growth condition of them
MS Gr. class. c. 1 118
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 163 col. 34. Philodemus, De divitiis 1
Drawing by Giuseppe Casanova
Into the future: FRBR, the Semantic Web, and possible applications for music cataloging
Creators: name: Cribbs, Elizabeth Hille
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010
Subjects: Online catalogs
FRBR (Conception model) evaluation
Standardization of bibliographic records
Metadata
Semantic Web
Music Literature and Scores Cataloging

description: This paper presents a detailed literature review and an exploratory study of practical models examining the application of FRBR and Semantic Web technologies on traditional music cataloging.  Four research questions determined the positive and negative ramifications of changing traditional music records to FRBRized records.  Results indicate that FRBR's ability to collocate items makes it an attractive option for music-oriented displays.  Three additional research questions explored how music catalogers might prepare for Semantic Web technologies, investigated how FRBR and Semantic Web technologies could align in the future, and assessed how Semantic Web technologies might positively and negatively affect music records.  Results further indicate that migrating to XML-based authority records, applying controlled-vocabulary tools such as Simple Knowledge Organizations Systems (SKOS) to LCSHs and LCCNs, and merging FRBR records with Semantic Web technology might allow music catalogers to begin harnessing the many potential benefits of the Semantic Web.
Distribution of CO2 ice on the large moons of Uranus and evidence for compositional stratification of their near-surfaces
Creators: name: Cartwright, Richard J.
name: Emery, Joshua P.
name: Rivkin, Andy S.
name: Trilling, David E.
name: Pinilla-Alonso, Noemi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The surfaces of the large Uranian satellites are characterized by a mixture of H2O ice and a dark, potentially carbon-rich, constituent, along with CO2 ice. At the mean heliocentric distance of the Uranian system, native CO2 ice should be removed on timescales shorter than the age of the Solar System. Consequently, the detected CO2 ice might be actively produced. Analogous to irradiation of icy moons in the Jupiter and Saturn systems, we hypothesize that charged particles caught in Uranus' magnetic field bombard the surfaces of the Uranian satellites, driving a radiolytic CO2 production cycle. To test this hypothesis, we investigated the distribution of CO2 ice by analyzing near-infrared (NIR) spectra of these moons, gathered using the SpeX spectrograph at NASA's Infrared Telescope Facility (IRTF) (2000 - 2013). Additionally, we made spectrophotometric measurements using images gathered by the Infrared Array Camera (IRAC) onboard the Spitzer Space Telescope (2003 - 2005). We find that the detected CO2 ice is primarily on the trailing hemispheres of the satellites closest to Uranus, consistent with other observations of these moons. Our band parameter analysis indicates that the detected CO2 ice is pure and segregated from other constituents. Our spectrophotometric analysis indicates that IRAC is not sensitive to the CO2 ice detected by SpeX, potentially because CO2 is retained beneath a thin surface layer dominated by H2O ice that is opaque to photons over IRAC wavelengths. Thus, our combined SpeX and IRAC analyses suggest that the near-surfaces (i.e., top few 100 microns) of the Uranian satellites are compositionally stratified. We briefly compare the spectral characteristics of the CO2 ice detected on the Uranian moons to icy satellites elsewhere, and we also consider the most likely drivers of the observed distribution of CO2 ice.
description: Keywords: Uranus - satellites, satellites - composition, spectroscopy, spectrophotometry, infrared observations
An evaluation of electronic information services at Company X
Creators: name: Tsitseras, Maria
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1999
Subjects: Pharmaceutical libraries and collections
Special libraries--Use studies
Pharmaceutical libraries--Reference services
Surveys--Information needs

description: This study evaluates electronic information services and tools at fictionally-named Company X.  A web survey was administered to the company workers to determine value and satisfaction ratings with the present electronic services and desktop tools.  The study revealed a high usage of certain databases and the need for more electronic services, such as more full-text, electronic journals.  Survey  participants had a high comfort level with using electronic services and databases, and preferred to use them over other products.  Findings also revealed a need for education and marketing of library services to fully utilize and make these databases and services cost-effective.  Survey participants wanted convenient access to library materials relative to their own office location.  The study concludes survey participants want more electronic services and databases to meet their information needs.
Polarized galactic synchrotron and dust emission and their correlation
Creators: name: Choi, Steve K.
name: Page, Lyman A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present an analysis of the level of polarized dust and synchrotron emission using the WMAP9 and Planck data. The primary goal of this study is to inform the assessment of foreground contamination in the cosmic microwave background (CMB) measurements below $\ell\sim200$ from 23 to 353 GHz. We compute angular power spectra as a function of sky cut based on the Planck 353 GHz polarization maps. Our primary findings are the following. (1) There is a spatial correlation between the dust emission as measured by Planck at 353 GHz and the synchrotron emission as measured by WMAP at 23 GHz with $ρ\approx0.4$ or greater for $\ell<20$ and $f_{\mathrm{sky}}\geq0.5$, dropping to $ρ\approx0.2$ for $30
description: 10 pages, 8 figures; Published in JCAP. Source masks updated, minor changes
MS Gr. class. c. 1 119
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 163 col. 35. Philodemus, De divitiis 1
Drawing by Giuseppe Casanova
The communication habits of regional documents librarians: an exploratory study
Creators: name: Glenn, Valerie D.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000
Subjects: Depository libraries
Surveys--Documents librarians
Communication
Surveys--Depository libraries

description: This study describes a questionnaire survey distributed to federal government documents librarians in the 53 regional depositories of the Federal Depository Library System.  The purpose of the study was to determine how much communication there is among documents librarians in regional depositories, how much communication regional documents librarians have with documents librarians in selective depositories, and what methods of communication are being used.  Overwhelmingly respondents preferred email as a communication method, and email was also cited as the most frequently used method of communication.  There appears to be a definite split in terms of expectations and attitudes among respondents in terms of professional  journals and conferences, but there was no strong correlation between any of the survey variables to suggest a reason for this difference.  A next possible step in determining patterns of communication is to survey a sample of federal documents librarians in selective depositories.
Template export test - snapshot
Creators: name: Gosia Wolniewicz
Publisher: name: Zenodo
Year: 2022
Subjects: subject: http://eurovoc.europa.eu/3291

description: Byle co, do testowania
description: Research Object in rohub2020: https://w3id.org/ro-id-dev/d45e1811-f3f6-44d1-a12a-bc4de7cd9a54
Website log analysis: Approaches for the Library of the National Institute of Environmental Health Sciences
Creators: name: Warren, Nikki
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2002
Subjects: Internet--Statistics
Internet--Environmental libraries and collections
Web sites--Case studies
Use studies--Internet
World Wide Web--Statistics

description: Much of the literature on web log analysis focuses on how to collect summary statistics, the anatomy of web logs, how to choose analysis software, and the strengths and weaknesses of log analysis. These issues are important to understand, but less research has been done on how to comprehensively apply web logs to higher-level issues within libraries. This study shows that web statistics are a tool to help librarians make management, marketing, and collection development decisions. This paper will cover the basic issues of web log analysis in addition to exploring practical application concepts for the library of the National Institute of Environmental Health Sciences (NIEHS). The library's web logs were analyzed from January to March 2002. In addition, a database was queried to track usage of specific resources on the library's website from March to May 2002.
Ethnographisches Denken über Haare
Creators: name: Smuda, Rebekka
Publisher: name: Universität Tübingen
Year: 2018
Subjects: subject: Ethnologie , Beobachtung
subject: 300
subject: Praktiken
subject: Ethnographie

description: Anliegen dieses Beitrags ist nachzuzeichnen, wie ethnographisches Forschen und Denken der Aufforderung des 5. Studentischen Soziologiekongresses ‚Denken Über(-)Denken‘ nachkommt. Grundlage bildet der in einer einmonatigen Feldforschung im brasilianischen Vitória 2014 erhobene Datenkorpus. Der Artikel stützt sich auf Auszüge aus der, aus dieser Forschung entstandenen, Masterarbeit. Das Forschungsinteresse liegt auf Haarpraktiken von Brasilianerinnen mit krausem Haar, was Aspekte der Pflege, Gestaltung und des persönlichen Bezugs meint. Im Vordergrund steht die Auseinandersetzung mit Geschlecht und Rassismus im brasilianischen Kontext, was jedoch ein Fragen nach dem Gestaltungs(un)vermögen bedeutet. Dieser Artikel ist einerseits eine Methodenreflexion, andererseits die Vorstellung zentraler Ergebnisse.
Dynamics of the human gut phageome during the antibiotics therapy
Creators: name: Górska, Anna
Publisher: name: Universität Tübingen
Year: 2018
Subjects: subject: Hochleistungsrechnen
subject: 000
subject: 004

description: Antibiotics are widely used in all sorts of the medical procedures. Without them, modern medical practice is not possible. As much as they are inevitable, they have severe adverse effects in promoting the antibiotic resistance. Each antibiotic therapy has a profound impact on the human gut. Firstly antibiotics select resistant bacteria what results in rapid changes of the taxonomical composition of the human gut. Secondly, the antibiotic pressure prompts the horizontal gene transfer including transduction that is intermediated by the phages, what advances spread of the resistance. Although the taxonomical composition restores after a month from the therapy, the bacteria get enriched with the genes conferring resistance to antibiotics. We have analyzed changes in the microbiome and phageome of the two people throughout the antibiotic therapy and subsequent recovery time. Analysis of the phage genomes is bioinformatically tricky as phages have complex genomic structures and there are no reliable reference databases. Therefore, we developed a novel comprehensive pipeline for the time-series analysis of the metagenomic datasets focusing on the function and changes in the phage sequences. We observed the phages respond to the antibiotic therapy, and are enriched with antibiotic-resistant genes.
Stable groups and expansions of $(\mathbb{Z},+,0)$
Creators: name: Conant, Gabriel
name: Pillay, Anand
Publisher: name: arXiv
Year: 2016
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics

description: We show that if $G$ is a sufficiently saturated stable group of finite weight with no infinite, infinite-index, chains of definable subgroups, then $G$ is superstable of finite $U$-rank. Combined with recent work of Palacin and Sklinos, we conclude that $(\mathbb{Z},+,0)$ has no proper stable expansions of finite weight. A corollary of this result is that if $P\subseteq\mathbb{Z}^n$ is definable in a finite dp-rank expansion of $(\mathbb{Z},+,0)$, and $(\mathbb{Z},+,0,P)$ is stable, then $P$ is definable in $(\mathbb{Z},+,0)$. In particular, this answers a question of Marker on stable expansions of the group of integers by sets definable in Presburger arithmetic.
description: 10 pages, final version to appear in Fundamenta Mathematicae
Empirical Charge Scheme for Transition Metals and Lanthanoids: Development and Applications
Creators: name: Martin, Bodo R.
name: Comba, Peter
Publisher: name: Universität Tübingen
Year: 2018
Subjects: subject: Hochleistungsrechnen
subject: 000
subject: 004

description: Parameters for the fluctuating charge model are derived for In(III), La(III), Lu(III) and Bi(III), based on x-ray structural data and DFT single point calculations. A number of density partitioning schemes is tested.
HPC-based uncertainty quantification for fluidstructure coupling in medical engineering
Creators: name: Kratzke, Jonas
name: Heuveline, Vincent
Publisher: name: Universität Tübingen
Year: 2018
Subjects: subject: Hochleistungsrechnen
subject: 000
subject: 004

description: In recent decades biomedical studies with living probands (in vivo) and artificial experiments (in vitro) have been complemented more and more by computation and simulation (in silico). In silico techniques for medical engineering can give for example enhanced information for the diagnosis and risk stratification of cardiovascular disease, one of the most occurring causes of death in the developed countries. Other use cases for in silico methods are given by virtual prototyping and the simulation of possible surgery outcomes. High reliability is a requirement for cardiovascular diagnosis and risk stratification methods especially with surgical decision-making. Given uncertainties in the input data of a simulation, this implies a necessity to quantify the uncertainties in simulation results. Uncertainties can be propagated within a numerical simulation by methods of Uncertainty Quantification (UQ).
Observation and numerical modeling of chromospheric evaporation during the impulsive phase of a solar flare
Creators: name: Imada, Shinsuke
name: Murakami, Izumi
name: Watanabe, Tetsuya
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have studied the chromospheric evaporation flow during the impulsive phase of the flare by using the Hinode/EIS observation and 1D hydrodynamic numerical simulation coupled to the time-dependent ionization. The observation clearly shows that the strong redshift can be observed at the base of the flaring loop only during the impulsive phase. We performed two different numerical simulations to reproduce the strong downflows in FeXII and FeXV during the impulsive phase. By changing the thermal conduction coefficient, we carried out the numerical calculation of chromospheric evaporation in the thermal conduction dominant regime (conductivity coefficient kappa0 = classical value) and the enthalpy flux dominant regime (kappa0 = 0.1 x classical value). The chromospheric evaporation calculation in the enthalpy flux dominant regime could reproduce the strong redshift at the base of the flare during the impulsive phase. This result might indicate that the thermal conduction can be strongly suppressed in some cases of flare. We also find that time-dependent ionization effect is importance to reproduce the strong downflows in Fe XII and Fe XV.
description: 15 pages, 10 figures, accepted Physics of Plasma
A content analysis of the contemporary portrayal of African Americans in children's picture books
Creators: name: Berry, Tomeka
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1999
Subjects: Children's literature
African Americans
Content analysis

description: This study is a content analysis of children's picture books. Thirty books were evaluated to determine if the portrayal of African Americans in picture books was realistic and positive. The books reviewed were selected from the reference source A to Zoo. Many librarians use this title to recommend materials to children and parents. The books were published during the 1980s and 1990s. Results showed that overall the portrayal of African Americans is positive, realistic and excludes stereotypical images. The study found that African Americans are writing and illustrating books about the African American experience. Overall the sample showed the language used was realistic and there was not a difference in speech between the African American and white characters. The illustrations depicted the diversity of the African American culture in features, hairstyles and complexion. The characterization was positive, complex and the character's actions mirrored real life. The stories were universal; they could have been the experience of any child.
High precision calculations of particle physics at the NEMO cluster in Freiburg
Creators: name: Heidecker, Christoph
name: Giffels, Manuel
name: Quast, Günter
name: Rabbertz, Klaus
name: Schnepf, Matthias
Publisher: name: Universität Tübingen
Year: 2018
Subjects: subject: Hochleistungsrechnen
subject: 000
subject: 004

description: At the Large Hadron Collider of CERN in Geneva particles such as protons are smashed onto each other at the highest man-made energies ever. Despite being gigantic in size, custom-designed detectors are capable of recording billions of such collisions with high accuracy. To accompany these measurements, predictions of highest precision are required, for some of which it took the theory community more than 20 years to develop the necessary methods and techniques. We explain how these CPU intensive calculations have been adapted to run efficiently on the computing resources available within the bwHPC project and present the required tools and infrastructure we developed for this purpose.
MS Gr. class. c. 1 120
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 163 col. 36. Philodemus, De divitiis 1
Drawing by Giuseppe Casanova
Improving accessibility to ancient microbiome data beyond palaeogenomics
Creators: name: Fellows Yates, James A.
Publisher: name: Zenodo
Year: 2022
Subjects: ancient DNA
ancient metagenomics
metadata
microbiome
nextflow
nf-core

description: Ancient metagenomics is a powerful tool for adding a deep-time dimension to biological projects. Being able to look into the past gives us the ability to trace the long-term evolutionary relationships between microbiomes and their hosts. Therefore, ancient microbiomes represent a rich untapped source of potentially extinct biodiversity. However, to date, the use of ancient metagenomic data has been largely limited to the fields of archaeology, palaeoecology, and biological anthropology. In this poster I present two community iniatives from the SPAAM community to improve the metadata reporting and findability of ancient host-associated microbiome data (database: AncientMetagenomeDir, aDNA MIxS checklist: MInAS). I will given an overview on the open-source bioinformatic best-practice pipeline (nf-core/eager), and demonstrate how it improves the accessibility of reproducible ancient DNA analysis for both host and microbial data. Finally, I will present a case-study on how we are utilising these resources to explore past biodiversity in order to tackle present-day problems, including the identification of new antibiotics.
Virtualized Research Environments on the bwForCluster NEMO
Creators: name: Janczyk, Michael
name: Wiebelt, Bernd
name: Von Suchodoletz, Dirk
Publisher: name: Universität Tübingen
Year: 2018
Subjects: subject: Hochleistungsrechnen
subject: 000
subject: 004

description: The bwForCluster NEMO offers high performance computing resources to three quite different scientific communities (Elementary Particle Physics, Neuroscience and Microsystems Engineering) encompassing more than 200 individual researchers. To provide a broad range of software packages and deal with the individual requirements, the NEMO operators seek novel approaches to cluster operation [1]. Virtualized Research Environments (VREs) can help to both separate different software environments as well as the responsibilities for maintaining the software stack. Research groups become more independent from the base software environment defined by the cluster operators. Operating VREs brings advantages like scientific reproducibility, but may introduce caveats like lost cycles or the need for layered job scheduling. VREs might open advanced possibilities as e.g. job migration or checkpointing.
Bounce Inflation Cosmology with Standard Model Higgs Boson
Creators: name: Wan, Youping
name: Qiu, Taotao
name: Huang, Fa Peng
name: Cai, Yi-Fu
name: Li, Hong
name: Zhang, Xinmin
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is of great interest to connect cosmology in the early universe to the Standard Model of particle physics. In this paper, we try to construct a bounce inflation model with the standard model Higgs boson, where the one loop correction is taken into account in the effective potential of Higgs field. In this model, a Galileon term has been introduced to eliminate the ghost mode when bounce happens. Moreover, due to the fact that the Fermion loop correction can make part of the Higgs potential negative, one naturally obtains a large equation of state(EoS) parameter in the contracting phase, which can eliminate the anisotropy problem. After the bounce, the model can drive the universe into the standard higgs inflation phase, which can generate nearly scale-invariant power spectrum.
description: 22 pages, 10 figures, Published in JCAP12(2015)019
Ease of Navigability in Two Public Libraries' Spanish Catalogs
Creators: name: Carter, Meghan A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010
Subjects: OPAC

description: The Hispanic population has been growing at a high rate in the past two decades, culminating in 2007 as the largest minority group in the United States (Bernstein, 2008). However, the growth in population has not been isolated to just one particular region, but to new regions that had previously low numbers of Hispanics. Charlotte-Mecklenburg County, North Carolina experienced a septuplet growth rate in Hispanic population between 1990 and 2000, which led them to evaluate their user population, finding that they needed to provide a Spanish catalog. Since public libraries' goal is information dissemination, this study evaluates and compares how easy it is to navigate Charlotte-Mecklenburg's Spanish to a county similar in size-San Francisco County, California-in which a large Hispanic population has existed for a longer period of time. The study found that although both indicated a high level of navigability, some features were not available to Hispanic patrons.
Numerical Simulation of Heat Transfer in Turbulent Pipe Flow with Structured Wall Surfaces
Creators: name: Renze, Peter
Publisher: name: Universität Tübingen
Year: 2018
Subjects: subject: Hochleistungsrechnen
subject: 000
subject: 004

description: Innovative heat transfer technology is the key to the optimization of many processes in the power or process industry. Operational costs and usage of valuable resources can be reduced, if the heat transfer efficiency is increased and pressure loss is reduced. Therefore, the current work is focused on heat transfer enhancement at tubes with micro-structured walls with turbulent flow. In this kind of geometry modern optical measurement technology cannot be applied and the analysis of the turbulent transport is only possible with numerical flow simulations. A large-eddy turbulence model is applied to account for turbulence closures. First, the simulation setup is validated with data from the literature and then several micro-structured geometries are investigated. The simulations are computationally costly and depend on high performance computing (HPC). The open-source software library OpenFOAM® is applied to perform massively parallel simulations.
Quantum dissipative dynamics of a bistable system in the sub-Ohmic to super-Ohmic regime
Creators: name: Magazzù, Luca
name: Carollo, Angelo
name: Spagnolo, Bernardo
name: Valenti, Davide
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the quantum dynamics of a multilevel bistable system coupled to a bosonic heat bath beyond the perturbative regime. We consider different spectral densities of the bath, in the transition from sub-Ohmic to super-Ohmic dissipation, and different cutoff frequencies. The study is carried out by using the real-time path integral approach of the Feynman-Vernon influence functional. We find that, in the crossover dynamical regime characterized by damped \emph{intrawell} oscillations and incoherent tunneling, the short time behavior and the time scales of the relaxation starting from a nonequilibrium initial condition depend nontrivially on the spectral properties of the heat bath.
description: 16 pages, 7 figures
Planets in turbulent Disks
Creators: name: Kley, Wilhelm
name: Stoll, Moritz H.R.
name: Picogna, Giovanni
Publisher: name: Universität Tübingen
Year: 2018
Subjects: subject: Hochleistungsrechnen
subject: 000
subject: 004

description: Planets form in protoplanetary accretion disks around young protostars. These disks are driven by internal turbulence and the gas flow is in general not laminar but has stochastic components. For weakly ionized disks the turbulence can be generated purely hydrodynamically through the vertical shear instability (VSI). Planets, that are forming in such turbulent disks, experience random components in the torques acting on them, that will modify their migration behaviour. In this contribution we present results of our study of the impact that a turbulent disk has on an embedded planet. For that purpose we performed three-dimensional hydrodynamical simulations of a locally isothermal disk with embedded planets of various masses. For the lower mass planets (5 and 10 M ) we find that the inward migration rate can be faster than in the laminar case, while for the more massive planets (30 and 100 M ) the results agree well with the laminar results.
Documenting Appalachian Culture: The Transmission of Cultural Heritage Information
Creators: name: McVay, Frances P.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011
Subjects: Appalachian region
Oral history
North Carolina

description: The people of Appalachia historically represent an American cultural group strongly influenced by the relative isolation afforded by its geographic location within the Appalachian Mountains. The region and its culture have attracted much attention since the Great Depression era when government workers began constructing roads in the mountains; yet little research documenting Appalachian culture has been conducted. The Crossnore School, founded in the Appalachians of western North Carolina in the early twentieth century, was established with a Weaving Room that still functions today. A group of weavers hand-weaves products to sell and also teaches interested students their craft. While the act of weaving embodies a cultural tradition, the process of teaching and learning the practice epitomizes an aspect of intangible cultural heritage. Through semistructured interviews with a sample of stakeholders of the Crossnore School, this research study will explore and record an undocumented aspect of Appalachian culture.
MS Gr. class. c. 1 121
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 163 col. 37. Philodemus, De divitiis 1
Drawing by Giuseppe Casanova
Proceedings of the 4th bwHPC Symposium
Creators: name: Krüger, Jens
name: Walter, Thomas
name: Górska, Anna
name: Peter, Silke
name: Willmann, Matthias
name: Schlaberg, Robert
name: Martin, Bodo R.
name: Comba, Peter
name: Huson, Daniel
name: Schäfer, Christoph M.
name: Maindl, Thomas I.
name: Burger, Christoph
name: Wandel, Oliver J.
name: Bartusch, Felix
name: Hanussek, Maximilian
name: Witte, Irene
name: Streck, Thilo
name: Kratzke, Jonas
name: Heuveline, Vincent
name: Heidecker, Christoph
name: Giffels, Manuel
name: Quast, Günter
name: Rabbertz, Klaus
name: Schnepf, Matthias
name: Baumann, Martin
name: Mattes, Oliver
name: Richling, Sabine
name: Siebler, Sven
name: Janczyk, Michael
name: Wiebelt, Bernd
name: Von Suchodoletz, Dirk
name: Renze, Peter
name: Kley, Wilhelm
name: Stoll, Moritz H.R.
name: Picogna, Giovanni
Publisher: name: Universität Tübingen
Year: 2018
Subjects: subject: Hochleistungsrechnen
subject: 000
subject: 004

description: The bwHPC Symposium 2017 took place on October 4th, 2017, Alte Aula, Tübingen. It focused on the presentation of scientific computing projects as well as on the progress and the success stories of the bwHPC realization concept. The event offered a unique opportunity to engage in an active dialogue between scientific users, operators of bwHPC sites, and the bwHPC support team.
Recent applications of the Tübingen-Vienna Smooth Particle Hydrodynamics code
Creators: name: Schäfer, Christoph M.
name: Maindl, Thomas I.
name: Burger, Christoph
name: Wandel, Oliver J.
Publisher: name: Universität Tübingen
Year: 2018
Subjects: subject: Hochleistungsrechnen
subject: 000
subject: 004

description: Here, we present the latest improvements and applications of the Tübingen-Vienna Smooth Particle Hydrodynamics (SPH) code. By the use of modern graphics processing units (GPUs), we have increased the performance of astrophysical simulations in the field of hydrodynamics and solid mechanics by porting an OpenMP code to the GPU with CUDA™. Recently, we have added a porosity module and a soil module to our existing framework. The code is freely available upon request.
On the velocity of moving relativistic unstable quantum systems
Creators: name: Urbanowski, K.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We study properties of moving relativistic quantum unstable systems. We show that in contrast to the properties of classical particles and quantum stable objects the velocity of moving freely relativistic quantum unstable systems can not be constant in time. We show that this new quantum effect results from the fundamental principles of the quantum theory and physics: It is a consequence of the principle of conservation of energy and of the fact that the mass of the quantum unstable system is not defined. This effect can affect the form of the decay law of moving relativistic quantum unstable systems.
description: LaTeX2e, 11 pages, new coments and references added
Collection Development in School and Public Libraries: An Analysis of Health Related Titles
Creators: name: Clancy, Colleen M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2004
Subjects: School libraries--North Carolina
Public libraries--North Carolina
School libraries--Collection development
School and Public Library Relations North Carolina
Public libraries--Collection development

description: The selection of resources is one of a librarian's most important responsibilities. It impacts the level of access to information that patrons have. The selection process becomes more complex when the library's mission supports a specific population, children and young adults, with distinct needs and limitations. Public and school librarians were interviewed on their perceptions of influences on the selection process emphasizing access to health related topics as defined in North Carolina's curriculum for fifth and sixth graders. In addition to responses from the interviews, a collection analysis was performed to determine the level of access afforded to patrons in the existing library collections. It was determined that the public library provides the broadest level of access across the health subject headings while school libraries provided greater depth in specific subject headings. This suggests collaboration between these libraries would provide a higher level of access to information for patrons.
Two-loop Integrand Decomposition into Master Integrals and Surface Terms
Creators: name: Ita, Harald
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Loop amplitudes are conveniently expressed in terms of master integrals whose coefficients carry the process dependent information. Similarly before integration, the loop integrands may be expressed as a linear combination of propagator products with universal numerator-tensors. Such a decomposition is an important input for the numerical unitarity approach, which constructs integrand coefficients from on-shell tree amplitudes. We present a new method to organise multi-loop integrands into a direct sum of terms that integrate to zero (surface terms) and remaining master integrands. This decomposition facilitates a general, numerical unitarity approach for multi-loop amplitudes circumventing analytic integral reduction. Vanishing integrals are well known as integration-by-parts identities. Our construction can be viewed as an explicit construction of a complete set of integration-by-parts identities excluding doubled propagators. Interestingly, a class of 'horizontal' identities is singled out which hold as well for altered propagator powers.
description: 58 pages, 3 figures
A short review on Noether's theorems, gauge symmetries and boundary terms
Creators: name: Bañados, Máximo
name: Reyes, Ignacio A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This review is dedicated to some modern applications of the remarkable paper written in 1918 by E. Noether. On a single paper, Noether discovered the crucial relation between symmetries and conserved charges as well as the impact of gauge symmetries on the equations of motion. Almost a century has gone since the publication of this work and its applications have permeated modern physics. Our focus will be on some examples that have appeared recently in the literature. This review is aim at students, not researchers. The main three topics discussed are (i) global symmetries and conserved charges (ii) local symmetries and gauge structure of a theory (iii) boundary conditions and algebra of asymptotic symmetries. All three topics are discussed through examples.
description: 75 pages, 4 figures
Containerization of Galaxy Workflows increases Reproducibility
Creators: name: Bartusch, Felix
name: Hanussek, Maximilian
name: Krüger, Jens
Publisher: name: Universität Tübingen
Year: 2018
Subjects: subject: Hochleistungsrechnen
subject: 000
subject: 004

description: Published scientific findings supported by computational experiments should be reproducible by following the methodical description in the publication. Because this is often not the case, we present a method to containerize Galaxy workflows within Singularity containers. These containers are executable such that other researchers can reproduce computational experiments or run their own experiments using the containerized workflows.
Digging into the Promise of Pasture Protein - for Humans
Creators: name: Dickey, Delwyn
Publisher: name: AgResearch
Year: 2024
Subjects: classificationCode: 3002
subject: Agriculture, land and farm management

description: Harvesting pasture to extract protein for human food could be a promising option for farmers looking to diversify and reduce their environmental footprint, finds new research. Along with needing no new infrastructure or standdown time for a new crop to come online, farmers already have proven expertise in growing good quality pasture up and down the country. Technology is progressing that can extract protein from pasture, to create a plant protein food ingredient for human consumption. While there is currently limited demand and no commercial processing for pasture protein in New Zealand, both are likely in future.
MS Gr. class. c. 1 122
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 163 col. 38. Philodemus, De divitiis 1
Drawing by Giuseppe Casanova
Multi-model ensemble simulations to assess the impact of climate change on agro-ecosystems
Creators: name: Witte, Irene
name: Streck, Thilo
Publisher: name: Universität Tübingen
Year: 2018
Subjects: subject: Hochleistungsrechnen
subject: 000
subject: 004

description: Global climate change will alter the water, nitrogen and carbon cycles of agroecosystems. To predict future agricultural production under climate change, numerical soil-crop models are used. These soil-crop models can represent the complex and coupled processes of agroecosystems in a deterministic manner for a given environment. The projections made by soilcrop models suffer from two kinds of uncertainty: (1) epistemic uncertainty and (2) parameter uncertainty. Additionally, it is assumed that the parameterization is applicable to other environments. Therefore, this study has two major aims. The first aim is to quantify the above-mentioned uncertainties simultaneously by combining two methods: multi-model ensemble modeling and Bayesian statistics. The multi-model ensemble allows to quantify epistemic uncertainty by comparing individual model outputs. This has been demonstrated in many studies. Bayesian methods are common to assess credible parameter intervals for highly nonlinear process models. The second aim of this study is to provide a framework for assessing the robustness of the parametrization of soil-crop models. Therefore, a preliminary numerical study was conducted to test different calibration schemes and to investigate parameters sensitivities in dependence of the environment. The soil-crop modelling software ExpertN 3.0 will be used to set up a multi-model ensemble with eight soilcrop models. The model output will be analyzed by comparison with data from two sites, five soil types and two crops gathered by the DFG Research Unit 1695 since 2010. To achieve the second aim a global sensitivity analyses was conducted to rank the input factors for each soil-crop model. The result of the global sensitivity analyses will clarify the impact of model input on model output in regard to environment, model combinations, and extent. Additionally, different calibration schemes will be tested to identify the method yielding the most robust parametrization. We used a Latin Hypercube sampling scheme. In total, the whole study requires 1,000,000 CPU hours. We expect that the results will enable us to develop a generally applicable and feasible strategy of how soil-crop models have to be set up to produce reliable predictions of agroecosystem behavior under climate change.
MS Gr. class. c. 1 123
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 163 col. 43. Philodemus, De divitiis 1
Drawing by Giuseppe Casanova