cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Practical issues in handling data input and uncertainty in a budget impact analysis
Creators: name: Nuijten, M.J.C.
name: Mittendorf, Thomas
name: Persson, Uwe
Publisher: name: Heidelberg : Springer Verlag
Year: 2011
Subjects: subject: Budget impact
subject: Data source
subject: Model
subject: disease modifying antirheumatic drug
subject: article
subject: budget
subject: clinical research
subject: cost effectiveness analysis
subject: health care utilization
subject: health economics
subject: human
subject: information processing
subject: off label drug use
subject: practice guideline
subject: prescription
subject: priority journal
subject: probability
subject: prognosis
subject: rheumatoid arthritis
subject: sensitivity analysis
subject: standard
subject: treatment failure
subject: uncertainty
subject: Budgets
subject: Cost-Benefit Analysis
subject: Delphi Technique
subject: Humans
subject: Incidence
subject: Models, Economic
subject: Prevalence
subject: Technology Assessment, Biomedical
subject: Uncertainty
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: The objective of this paper was to address the importance of dealing systematically and comprehensively with uncertainty in a budget impact analysis (BIA) in more detail. The handling of uncertainty in health economics was used as a point of reference for addressing the uncertainty in a BIA. This overview shows that standard methods of sensitivity analysis, which are used for standard data set in a health economic model (clinical probabilities, treatment patterns, resource utilisation and prices/tariffs), cannot always be used for the input data for the BIA model beyond the health economic data set for various reasons. Whereas in a health economic model, only limited data may come from a Delphi panel, a BIA model often relies on a majority of data taken from a Delphi panel. In addition, the dataset in a BIA model also includes forecasts (e.g. annual growth, uptakes curves, substitution effects, changes in prescription restrictions and guidelines, future distribution of the available treatment modalities, off-label use). As a consequence, the use of standard sensitivity analyses for BIA data set might be limited because of the lack of appropriate distributions as data sources are limited, or because of the need for forecasting. Therefore, scenario analyses might be more appropriate to capture the uncertainty in the BIA data set in the overall BIA model.
Methods for analyzing health care utilization and costs
Creators: name: Yanez, D.
name: Ash, A.
name: Hornbrook, M.
name: Diehr, P.
name: Lin, Danyu
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1999

description: Important questions about health care are often addressed by studying health care utilization. Utilization data have several characteristics that make them a challenge to analyze. In this paper we discuss sources of information, the statistical properties of utilization data, common analytic methods including the two-part model, and some newly available statistical methods including the generalized linear model. We also address issues of study design and new methods for dealing with censored data. Examples are presented.
Terahertz quantum cascade lasers with thin resonant-phonon depopulation active regions and surface-plasmon waveguides
Creators: name: Salih, M.
name: Dean, P.
name: Valavanis, A.
name: Khanna, S. P.
name: Li, L. H.
name: Cunningham, J. E.
name: Davies, A. G.
name: Linfield, E. H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report three-well, resonant-phonon depopulation terahertz quantum cascade lasers with semi-insulating surface-plasmon waveguides and reduced active region (AR) thicknesses. Devices with thicknesses of 10, 7.5, 6, and 5 μm are compared in terms of threshold current density, maximum operating temperature, output power and AR temperature. Thinner ARs are technologically less demanding for epitaxial growth and result in reduced electrical heating of devices. However, it is found that 7.5-μm-thick devices give the lowest electrical power densities at threshold, as they represent the optimal trade-off between low electrical resistance and low threshold gain.
description: 16 pages, 6 figures
Cost-Effectiveness of Pharmacogenomic and Pharmacogenetic Test-Guided Personalized Therapies: A Systematic Review of the Approved Active Substances for Personalized Medicine in Germany
Creators: name: Plöthner, Marika
name: Ribbentrop, Dana
name: Hartman, Jan-Phillipp
name: Frank, Martin
Publisher: name: New York : Springer Healthcare
Year: 2016
Subjects: subject: Abacavir
subject: Azathioprine
subject: Carbamazepine
subject: Cetuximab
subject: Cost-effectiveness
subject: Personalized medicine
subject: Pharmacogenetic test
subject: Targeted therapy
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Background: The use of targeted therapies has recently increased. Pharmacogenetic tests are a useful tool to guide patient treatment and to test a response before administering medicines. Pharmacogenetic tests can predict potential drug resistance and may be used for determining genotype-based drug dosage. However, their cost-effectiveness as a diagnostic tool is often debatable. In Germany, 47 active ingredients are currently approved. A prior predictive test is required for 39 of these and is recommended for eight. The objective of this study was to review the cost-effectiveness (CE) of pharmacogenetic test-guided drug therapy and compare the application of drugs with and without prior genetic testing. Methods: A systematic literature review was conducted to identify the CE and cost-utility of genetic tests. Studies from January 2000 until November 2015 were searched in 16 databases including Medline, Embase, and Cochrane. A quality assessment of the full-text publications was performed using the validated Quality of Health Economic Studies (QHES) instrument. Results: In the majority of the included studies, the pharmacogenetic test-guided therapy represents a cost-effective/cost-saving treatment option. Only seven studies lacked a clear statement of CE or cost-savings, because of uncertainty, restriction to specific patient populations, or assumptions for comparative therapy. Moreover, the high quality of the available evidence was evaluated. Conclusion: Pharmacogenetic testing constitutes an opportunity to improve the CE of pharmacotherapy. The CE of targeted therapies depends on various factors including costs, prevalence of biomarkers, and test sensitivity and specificity. To guarantee the CE comparability of stratified drug therapies, national and international standards for evaluation studies should be defined. © 2016, The Author(s).
Commentary: Estimating the effects of non-pharmaceutical interventions on COVID-19 in Europe
Creators: name: Kuhbandner, Christof
name: Homburg, Stefan
Publisher: name: Lausanne : Frontiers Media
Year: 2020
Subjects: subject: COVID-19
subject: epidemiology
subject: mitigation strategies
subject: non-pharmaceutical interventions
subject: SARS-CoV-2
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: A Commentary on Estimating the effects of non-pharmaceutical interventions on COVID-19 in Europe by Flaxman, S., Mishra, S., Gandy, A., Unwin, H. J. T., Mellan, T. A., Coupland, H., et al. (2020). Nature 584, 257–261. doi: 10.1038/s41586-020-2405-7
Predictive information in a nonequilibrium critical model
Creators: name: Tchernookov, Martin
name: Nemenman, Ilya
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We propose predictive information, that is information between a long past of duration T and the entire infinitely long future of a time series, as a universal order parameter to study phase transitions in physical systems. It can be used, in particular, to study nonequlibrium transitions and other exotic transitions, where a simpler order parameter cannot be identifies using traditional symmetry arguments. As an example, we calculate predictive information for a stochastic nonequilibrium dynamics problem that forms an absorbing state under a continuous change of a parameter. The information at the transition point diverges as log(T), and a smooth crossover to constant away from the transition is observed.
Saxifraga cuneifolia
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: S. cuneifolia X stellaris - Angeblich in Distr. 4: Längtal im Binntal (H. St. Thompson 1912, Jaquet 1914).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Heterologe Produktion bakterieller und basidiomycetischer Enzyme für die Anwendung in der Backindustrie
Creators: name: Schulz, Kathrin
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2018
Subjects: subject: Baking enzyme
subject: heterologous expression
subject: industrial enzyme
subject: Backenzyme
subject: heterologe Expression
subject: industrielle Enzyme
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Die Brotherstellung ist eine der ältesten bekannten Biotechnologien. Die kontinuierliche Verbesserung dieses Prozesses vollzog sich parallel der Entwicklung zu einer modernen zivilisierten Gesellschaft. Um schwankende Rohstoffeigenschaften auszugleichen, der wachsenden Nachfrage nach speziellen Broterzeugnissen nachzukommen und die Verarbeitung des Teiges zu verbessern, nutzt die Industrie immer häufiger chemische und enzymatische Backmittel, wobei letztere in der heutigen Zeit als Lebensmitteladditiv unverzichtbar sind. Hierbei ist besonders bedeutend, dass eine Vielzahl der Enzyme während den thermischen Prozessen deaktiviert werden, somit nicht in ihrer aktiven Form im finalen Produkt vorliegen und folglich nicht gekennzeichnet werden müssen. In der vorliegenden Arbeit wurden zwei potentielle Backenzyme aus mikrobiellen Kulturüberstanden isoliert, auf biochemischer und molekularer Ebene charakterisiert und für anschließende Applikationsstudien heterolog produziert. Eines der isolierten Enzyme, eine Ferulasäureesterase (FAE) aus Streptomyces werraensis (SwFAED) wurde heterolog mittels eines Kälte-Schock-Systems in Escherichia coli produziert. Eine nachfolgende Co-Expression der Chaperone groES-groEL erzielte eine Verdopplung der Enzymaktivität. SwFAED weist keinerlei Ähnlichkeit bezüglich der Aminosäuresequenz zu bisher bekannten FAEs auf. Das Substratprofil demonstrierte eine Präferenz für voluminöse, natürliche Substrate wie feruloylierte Saccharide. Bei der Behandlung von Weizenteig konnte durch den Zusatz einer geringen Aktivität von 0,3 U kg-1 in Kombination mit Polysaccharid-abbauenden Enzymen aus Aspergillus das Gebäckvolumen eines Weizenbrotes um annähernd 10 % gesteigert werden. Das Temperatur- sowie pHOptimum (40 °C, pH 7,5) ermöglichen eine Applikation in der Backindustrie. Darüber hinaus wurde eine prolylspezifische Endopeptidase (FvpP) aus Flammulina velutipes gereinigt und die katalytische Enzymaktivität mittels der heterologen Produktion in Aspergillus oryzae verifiziert. Durch den Zusatz von Fe2+ bzw. Fe3+ konnte die FvpP-Aktivität gesteigert werden, wobei die Zugabe von Cu2+, Mn2+, Zn2+, Ni2+, Co2+ und geringe Konzentrationen von Z-Pro-Prolinal die Enzymaktivität senkten. Das Enzym wurde bezüglich seiner Spaltstellenspezifität untersucht und katalysiert effizient die Hydrolyse von prolinreichen Peptiden wie Insulinkette B, Angiotensin I und β-Casein. Ferner wurden Hydrolyseprodukte der Zöliakie auslösenden Komponente in Weizengluten, α-Gliadin, sowie die Spaltstellen von toxischen Epitopen in silico identifiziert. Dies eröffnet den potentiellen Einsatz in der Lebensmittelindustrie für die Produktion glutenfreier Lebensmittel.
title: Das Rheinstahl-Werk in Stuttgart-Feuerbach. Eine Zwischennutzung als Containerdorf
Creators: name: Clostermann, Gertrud
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 27, Nr. 2 (1998), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
S5 0716+714 : GeV variability study
Creators: name: Rani, B.
name: Krichbaum, T. P.
name: Lott, B.
name: Fuhrmann, L.
name: Zensus, J. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The GeV observations by Fermi-LAT give us the opportunity to characterize the high-energy emission (100 MeV - 300 GeV) variability properties of the BL Lac object S5 0716+714. In this study, we performed flux and spectral analysis of more than 3 year long (August 2008 to April 2012) Fermi-LAT data of the source. During this period, the source exhibits two different modes of flux variability with characteristic timescales of ~75 and ~140 days, respectively. We also notice that the flux variations are characterized by a weak spectral hardening. The GeV spectrum of the source shows a clear deviation from a simple power law, and is better explained by a broken power law. Similar to other bright Fermi blazars, the break energy does not vary with the source flux during the different activity states. We discuss several possible scenarios to explain the observed spectral break.
description: 21 pages, 10 figures, Accepted for publication in Advances in Space Research journal
Sensitivity of sample for simulation-based reliability analysis methods
Creators: name: Yuan, Xiukai
name: Gu, Jian
name: Liu, Shaolong
Publisher: name: Palmdale, Calif. : Tech Science Press
Year: 2021
Subjects: subject: importance sampling
subject: line sampling
subject: Monte Carlo simulation
subject: reliability analysis
subject: subset simulation
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik
subject: Dewey Decimal Classification::600 | Technik

description: In structural reliability analysis, simulation methods are widely used. The statistical characteristics of failure probability estimate of these methods have been well investigated. In this study, the sensitivities of the failure probability estimate and its statistical characteristics with regard to sample, called 'contribution indexes', are proposed to measure the contribution of sample. The contribution indexes in four widely simulation methods, i.e., Monte Carlo simulation (MCS), importance sampling (IS), line sampling (LS) and subset simulation (SS) are derived and analyzed. The proposed contribution indexes of sample can provide valuable information understanding the methods deeply, and enlighten potential improvement of methods. It is found that the main differences between these investigated methods lie in the contribution indexes of the safety samples, which are the main factors to the efficiency of the methods. Moreover, numerical examples are used to validate these findings. © This work is licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Requirements For A Model Of Agile Factory Planning
Creators: name: Krause, Marilena
name: Nyhuis, Peter
Publisher: name: Hannover : publish-Ing.
Year: 2021
Subjects: subject: Factory planning
subject: Agility
subject: modularity
subject: Uncertainties
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Factory planning has become a permanent task in industrial companies due to an increasingly dynamic and complex environment. The necessary involvement of a large number of experts from different disciplines in the planning process further leads to an increased coordination effort. In addition, in the early planning stage, there is often only fuzzy data available, and the planning procedure is characterised by numerous uncertainties. In order to react adequately to comparable complexity influences and uncertainties, agility is often recommended in the literature. In order to introduce agility in a targeted and structured manner in factory planning, a factory planning procedure is required that basically has a modular structure suitable for implementing agility and integrates all planning disciplines. In addition, the complexity of factory planning tasks must be reduced to an application-oriented level and linked as well as classified in terms of time. Agility must be holistically integrated into this factory planning procedure and its applicability must be ensured through detailed descriptions and visualisations. When integrating agility in factory planning, it is also important to check in each individual case, company- and project-related, which degree of agility makes sense and how the concrete implementation can be designed in the planning procedure. Since factory planning projects can differ greatly from one another, it is not possible to make a general statement about which agile elements offer which degree of support. The aim of this paper is to define the requirements for an agile factory planning model under these premises.
Quantum Photovoltaic Effect in Double Quantum Dots
Creators: name: Xu, Canran
name: Vavilov, Maxim G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We analyze the photovoltaic current through a double quantum dot system coupled to a high-quality driven microwave resonator. The conversion of photons in the resonator to electronic excitations produces a current flow even at zero bias across the leads of the double quantum dot system. We demonstrate that due to the quantum nature of the electromagnetic field in the resonator, the photovoltaic current exhibits a double peak dependence on the frequency $ω$ of an external microwave source. The distance between the peaks is determined by the strength of interaction between photons in the resonator and electrons in the double quantum dot. The double peak structure disappears as strengths of relaxation processes increases, recovering a simple classical condition for maximal current when the microwave frequency is equal to the resonator frequency.
Thermodynamics of electron-hole liquids in graphene
Creators: name: Falkovsky, L. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The impact of renormalization of the electron spectrum on the chemical potential, heat capacity, and oscillating magnetic moment is studied. The cases of low and high temperatures are considered. At low temperatures, doped graphene behaves as the usual Fermi liquids with the power temperature laws for thermodynamic properties. However, at high temperatures and relatively low carrier concentrations, it exhibits the collective electron-holes features: the chemical potential tends to its value in the undoped case going with the temperature to the charge neutrality point. Simultaneously, the electron contribution into the heat capacity tends to the constant value, as in the case of the Boltzmann statistics.
description: 4 pages, 2 figures
Land Administration Systems Development Trends – A Case Study
Creators: name: Dawidowicz, Agnieszka
name: Voß, Winrich
name: Leonard, Bernd
Publisher: name: Berlin : Walter de Gruyter
Year: 2013
Subjects: subject: land
subject: real estate cadastre
subject: land administration system
subject: land management
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Land management is aimed at generating optimal social, economic and environmental benefits while promoting sustainable development principles. An essential element of this process is the knowledge of the geospatial situation to support public decision-making at different levels: local, regional, national and global. Hence, there is a need for rapid access to complete and updated information about the physical characteristics of a property, rights, restrictions, responsibilities and interrelations. This information is provided by land administration systems (LAS). LAS are built and maintained by governments. The core of LAS is a multi-purpose cadastral system integrated with other spatial information systems and public registers. In this paper, the authors present the functional architecture and the assumptions of land administration systems built in Poland and Germany. The analysis results show the specificity of the systems' design in relation to socio-economic conditions
Modulation of hepatitis C virus RNA abundance by a liver-specific MicroRNA
Creators: name: Sarnow, Peter
name: Yi, MinKyung
name: Jopling, Catherine L.
name: Lancaster, Alissa M.
name: Lemon, Stanley M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2005

description: MicroRNAs are small RNA molecules that regulate messenger RNA (mRNA) expression. MicroRNA 122 (miR-122) is specifically expressed and highly abundant in the human liver. We show that the sequestration of miR-122 in liver cells results in marked loss of autonomously replicating hepatitis C viral RNAs. A genetic interaction between miR-122 and the 5′ noncoding region of the viral genome was revealed by mutational analyses of the predicted microRNA binding site and ectopic expression of miR-122 molecules containing compensatory mutations. Studies with replication-defective RNAs suggested that miR-122 did not detectably affect mRNA translation or RNA stability. Therefore, miR-122 is likely to facilitate replication of the viral RNA, suggesting that miR-122 may present a target for antiviral intervention.
"If We Are Really Serious About Protecting Agricultural Land In North Carolina..."
Creators: name: Furuseth, Owen J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1980

description: The need to protect agricultural land is one of the most common themes in contemporary land use planning. Throughout the 1970s, planners, agriculturalists, and environmentalists joined together in a chorus warning of an enormous shift of farmland in the United States. The alarming estimates of farmland losses, and their consequences has prompted widespread public concern. In response, government action toward a goal of protecting prime agricultural land has been extensive. By 1978 forty-seven states and numerous local governments had adopted some type of policy aimed at protecting agricultural operations which have been under pressure for development (Conroy, 1978: 10). At the federal level, specific legislation to preserve farmland has not been passed; however, a number of agencies have adopted administrative procedures with language requiring the preservation of valuable agricultural acreage (Skidmore, Owings, and Merrill, 1975; Council on Environmental Quality, 1976; U.S. Department of Agriculture, 1978; U.S. Environmental Protection Agency, 1978)
Gottfried Konecny: The photogrammetric and remote sensing trend setter
Creators: name: Jacobsen, Karsten
Publisher: name: Wuhan : Wuhan Univ. Journals Press
Year: 2020
Subjects: subject: Gottfried Konecny
subject: International Society for Photogrammetry and Remote Sensing
subject: ISPRS
subject: Germany
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: PREFACE: There are various publications on the 90th birthday of Gottfried Konecny. His involvement in the International Society for Photogrammetry and Remote Sensing (ISPRS) is particularly described by others. Here, his forward-oriented impulses in research and development at the former Institute for Photogrammetry and Engineering Survey of the (Technical) University of Hannover, today Institute for Photogrammetry and Geoinformation, Leibniz University Hannover, and some of his activities supporting developing and other countries by given short-term courses are highlighted. Gottfried Konecny was always one of the first in pushing new technologies. With the analytical plotter AP/C-3, he introduced analytical photogrammetry in Germany. Based on his experience with this not really operational version, he induced the company Zeiss to develop the first really operational analytical plotter Planicomp, which resulted in the end of analog photogrammetric devices and their limitations. At the invitation of Gilbert Hobrough, a mainly hardware-based image correlator was developed for the AP/C-3 in Hannover which anticipated many of today’s applications. Gottfried Konecny initiated remote sensing in Germany. Based on his proposal with the Metric Camera Flight on Spacelab, the then highest resolution civil stereoscopic space images available were generated. Despite limited computer performance at his institute, a digital stereo plotter was developed, using hardware components from the cooperating Swedish company Context Vision, long before digital stereo workstations with increased and affordable computer capacity were possible. Also, in the area of GIS, he too, pushed development in collaboration with companies and administrations. Shortly before the end of his time as head of the institute, and more so after he became emeritus professor, he started a series of educational workshops, particularly in developing countries, but also other countries, to support the development of photogrammetry, remote sensing and GIS. He promoted the use of space imagery for mapping to improve the situation of poorly updated topographic maps. © 2020 Wuhan University. Published by Informa UK Limited, trading as Taylor & Francis Group.
PAPupuncture has localized and long-lasting antinociceptive effects in mouse models of acute and chronic pain
Creators: name: Zylka, Mark J.
name: Hurt, Julie K
Publisher: name: BioMed Central Ltd
Year: 2012

description: AbstractAcupuncture has been used for millennia to treat pain, although its efficacy and duration of action is limited. Acupuncture also has brief (1–2 h) antinociceptive effects in mice and these effects are dependent on localized adenosine A1 receptor (A1R) activation. Intriguingly, adenosine 5’-monophosphate (AMP) is basally elevated near acupuncture points. This finding suggested that it might be possible to inhibit nociception for a longer period of time by injecting prostatic acid phosphatase (PAP, ACPP) into acupuncture points. PAP is an ectonucleotidase that dephosphorylates extracellular AMP to adenosine, has a long half-life in vivo and is endogenously found in muscle tissue surrounding acupuncture points. Here, we found that injection of PAP into the popliteal fossa—a space behind the knee that encompasses the Weizhong acupuncture point—had dose- and A1R-dependent antinociceptive effects in mouse models of acute and chronic pain. These inhibitory effects lasted up to six days following a single injection, much longer than the hour-long inhibition provided by acupuncture. Antinociception could be transiently boosted with additional substrate (AMP) or transiently blocked with an A1R antagonist or an inhibitor of phospholipase C. This novel therapeutic approach—which we term “PAPupuncture”—locally inhibits pain for an extended period of time (100x acupuncture), exploits a molecular mechanism that is common to acupuncture, yet does not require acupuncture needle stimulation.
Spinor dynamics in an antiferromagnetic spin-1 thermal Bose gas
Creators: name: Pechkis, Hyewon K.
name: Wrubel, Jonathan P.
name: Schwettmann, Arne
name: Griffin, Paul F.
name: Barnett, Ryan
name: Tiesinga, Eite
name: Lett, Paul D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We present experimental observations of coherent spin-population oscillations in a cold thermal, Bose gas of spin-1 sodium-23 atoms. The population oscillations in a multi-spatial-mode thermal gas have the same behavior as those observed in a single-spatial-mode antiferromagnetic spinor Bose Einstein condensate. We demonstrate this by showing that the two situations are described by the same dynamical equations, with a factor of two change in the spin-dependent interaction coefficient, which results from the change to particles with distinguishable momentum states in the thermal gas. We compare this theory to the measured spin population evolution after times up to a few hundreds of ms, finding quantitative agreement with the amplitude and period. We also measure the damping time of the oscillations as a function of magnetic field.
description: 5 pages, 3 figures
Limit sets of stable Cellular Automata
Creators: name: Ballier, Alexis
Publisher: name: arXiv
Year: 2013
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We study limit sets of stable cellular automata standing from a symbolic dynamics point of view where they are a special case of sofic shifts admitting a steady epimorphism. We prove that there exists a right-closing almost-everywhere steady factor map from one irreducible sofic shift onto another one if and only if there exists such a map from the domain onto the minimal right-resolving cover of the image. We define right-continuing almost-everywhere steady maps and prove that there exists such a steady map between two sofic shifts if and only if there exists a factor map from the domain onto the minimal right-resolving cover of the image. In terms of cellular automata, this translates into: A sofic shift can be the limit set of a stable cellular automaton with a right-closing almost-everywhere dynamics onto its limit set if and only if it is the factor of a fullshift and there exists a right- closing almost-everywhere factor map from the sofic shift onto its minimal right- resolving cover. A sofic shift can be the limit set of a stable cellular automaton reaching its limit set with a right-continuing almost-everywhere factor map if and only if it is the factor of a fullshift and there exists a factor map from the sofic shift onto its minimal right-resolving cover. Finally, as a consequence of the previous results, we provide a characterization of the Almost of Finite Type shifts (AFT) in terms of a property of steady maps that have them as range.
description: 18 pages, 3 figures
Saxifraga exarata
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: S. exarata X muscoides Cat. 159. 3:ValdeBagnes (Gaudin);Schwarzsee und Riffelberg bei Zermatt (Hieronymus). (Nach Engler und Irmscher Lit. 1916, S. 436.)
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Increasing Resilience in Procurement in the Context of the Internet of Production
Creators: name: Linnartz, Maria
name: Motz, Ursula
name: Schröer, Tobias
name: Stich, Volker
name: Müller, Kai
name: Greb, Christoph
Publisher: name: Hannover : publish-Ing.
Year: 2021
Subjects: subject: Resilience
subject: Procurement Strategy
subject: Disruptions
subject: Supply Risks
subject: Textile Supply Chain
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Recent developments have demonstrated the challenges and impacts of disruptions in supply chains. Current disruptions especially affected procurement and have indicated a lack of resilience. Resilience aims at being prepared, decreasing the impact, and enabling fast reactions and adaption in case of disruptions. The systematic design of resilience in procurement is significantly influenced by proactive and strategic actions before disruptions occur. Thus, the procurement strategy plays a major role when increasing resilience. The procurement strategy is influenced by various factors. Thus, a data-based approach for its systematic design is required. Based on the vision of the Internet of Production (IoP), this paper presents a data-based approach for designing procurement strategies. The IoP is a framework that enables cross-domain collaboration by providing semantically adequate and contextual data from production, development, and usage in real-time at an appropriate granularity. The presented approach is structured along the action research cycle and uses CRISP-DM to further detail the different steps. Moreover, the paper aims at analyzing the state of the art regarding the design of procurement strategy in uncertain environments and the identification of success-critical purchased articles. The paper also introduces the textile industry and its supply chains as a use case for the presented approach.
Quality analysis of dual-frequency smartphone-based ionospheric tec measurements: What can be achieved?
Creators: name: Bruno, Jon
name: Darugna, Francesco
name: Bolmgren, Karl
name: Wübbena, Jannes B.
name: Mitchell, Cathryn
name: Schmitz, Martin
Publisher: name: Bologna : Editrice Compositori
Year: 2020
Subjects: subject: GNSS
subject: ionosphere
subject: mobile phone
subject: solar activity
subject: total electron content
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: The growing quality of smartphone-based Global Navigation Satellite Systems (GNSS) chipsets opens a new frontier for scientific research in positioning, navigation and timing ap-plications. The portability and affordability of these instruments could enhance the current GNSS receiver global network for atmospheric monitoring purposes. However, the quality of the measurements gathered from smartphones have not yet been fully assessed. In this paper, an analysis of the quality of smartphone-based Total Electron Content (TEC) measurements is performed. The primary focus of this work is to provide a general analysis on the potential of using smartphone observations for ionospheric sciences. Dual-frequency phase observations are used to measure the relative TEC. For this experiment, GPS L1/L5 and Galileo E1/E5a observations acquired with the Xiaomi Mi8 and Huawei Mate20 X smartphones were considered. Both devices are equipped with the Broadcom BCM47755 chipset, which enables GNSS dual-frequency measurements. More than 100 hours of phase observations at mid-latitude during a low solar activity period were gathered. Three different setup configurations were defined to assess the effects multipath or signal strength may have in the quality of the phase observations. In addition, to detect and discard unrealistic fluctuating phase observations, a quality-check was performed. In the results, good agreement between the slant TEC (sTEC) measurements from the smartphone and the sTEC obtained from a co-located geodetic receiver is presented. Furthermore, the amount and quality of observations discarded by the quality-check are reported, which emphasises the use of the signal strength to indicate the quality of phase observations. The results indicate that the C/N0 and multipath are important —when gathering the data from a geodetic antenna, around 80% of the collected data passed a quality threshold. However, collecting data with the addition of an attenuator, or directly from the smartphone antenna, reduced the valid data to below 50%. However, given the ease of use of a smartphone for data collection, even at 50% of data being usable, this shows potential as a useful course of TEC for ionospheric observations. © 2020, Editrice Compositori s.r.l.. All rights reserved.
Existence and stability of a two-parameter family of solitary waves for an NLS-KdV system
Creators: name: Albert, John
name: Bhattarai, Santosh
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35B35, 35Q53, 35Q55

description: We prove existence and stability results for a two-parameter family of solitary-wave solutions to a system in which an equation of nonlinear Schrödinger type is coupled to an equation of Korteweg-de Vries type. Such systems model interactions between short and long dispersive waves. The results extend earlier results of Angulo, Albert and Angulo, and Chen. Our proof involves the characterization of solitary-wave solutions as minimizers of an energy functional subject to two constraints. To establish the precompactness of minimizing sequences via concentrated compactness, we establish the sub-additivity of the problem with respect to both constraint variables jointly.
Opt-In Project Explores Uncharted Planning Territory in Southwestern NC
Creators: name: Guffey, Stacy J.
name: Brown, Ben
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: “We’re closer to five other state capitals than we are to Raleigh.” That’s a phrase you’re likely to hear within the first five minutes of a conversation with leaders in the far western region of western North Carolina. Although it may sound like a simple observation on geography, the obstacles our isolated location and rugged terrain create for regional planners and economic developers means that any attempt at a collaborative regional vision is likely to strain the limited capacities of existing governments and institutions. This is a difficult task, even in large metropolitan areas with plenty of leaders and resources to draw on. It is doubly so in a sparsely populated, rural region like ours. These challenges are why the Opt-In SWNC visioning initiative is so unique and so important. The initiative’s ambitions are to fill in research gaps, identify opportunities, and test alternative strategies to inform decision-making about economic development, transportation planning and the environment in the far western North Carolina counties.
Self-Help Development Bank: Economic Development Financing in North Carolina
Creators: name: Schall, Robert
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1991

description: Access to credit has long been considered a key component of successful economic development. Government policy and programs have consistently sought innovative financing tools to foster business expansion, job creation, service provision, and income generation. Development banking organizations have been created throughout the United States and Third World, offering alternative financing solutions to make credit more accessible to all segments of society. In North Carolina, the Center for Community Self-Help, Self-Help Ventures Fund and Self-Help Credit Union (collectively known as Self-Help) constitute the nation's first statewide private-sector development bank.
Stochastic fluctuations and the detectability limit of network communities
Creators: name: Floretta, Lucio
name: Liechti, Jonas
name: Flammini, Alessandro
name: Rios, Paolo De Los
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Social and Information Networks (cs.SI)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: We have analyzed the detectability limits of network communities in the framework of the popular Girvan and Newman benchmark. By carefully taking into account the inevitable stochastic fluctuations that affect the construction of each and every instance of the benchmark, we come to the conclusions that the native, putative partition of the network is completely lost even before the in-degree/out-degree ratio becomes equal to the one of a structure-less Erdös-Rényi network. We develop a simple iterative scheme, analytically well described by an infinite branching-process, to provide an estimate of the true detectability limit. Using various algorithms based on modularity optimization, we show that all of them behave (semi-quantitatively) in the same way, with the same functional form of the detectability threshold as a function of the network parameters. Because the same behavior has also been found by further modularity-optimization methods and for methods based on different heuristics implementations, we conclude that indeed a correct definition of the detectability limit must take into account the stochastic fluctuations of the network construction.
description: 5 pages, 5 figures, correction of typos, improvement of the bibliography and of the notation, general compression
High-precision 3D object capturing with static and kinematic terrestrial laser scanning in industrial applications-approaches of quality assessment
Creators: name: Stenz, Ulrich
name: Hartmann, Jens
name: Paffenholz, Jens-André
name: Neumann, Ingo
Publisher: name: Basel : MDPI AG
Year: 2020
Subjects: subject: Backward modeling
subject: Calibration
subject: Forward modeling
subject: High-precision terrestrial laser scanning
subject: Industrial surveying
subject: Kinematic laser scanning
subject: Laser tracker
subject: Multi-sensor-systems
subject: Quality analysis
subject: Synchronization
subject: Kinematics
subject: Laser applications
subject: Scanning
subject: Steel beams and girders
subject: Surveys
subject: Laser scanning
subject: Multi-sensor systems
subject: Terrestrial laser scanning
subject: Quality control
subject: Dewey Decimal Classification::500 | Naturwissenschaften::551 | Geologie, Hydrologie, Meteorologie
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Abstract Terrestrial laser scanning is used in many disciplines of engineering. Examples include mobile mapping, architecture surveying, archaeology, as well as monitoring and surveillance measurements. For most of the mentioned applications, 3D object capturing in an accuracy range of several millimeters up to a few centimeters is sufficient. However, in engineering geodesy, particularly in industrial surveying or monitoring measurements, accuracies in a range of a few millimeters are required. Additional increased quality requirements apply to these applications. This paper focuses on the quality investigation of data captured with static and kinematic terrestrial laser scanning. For this purpose, suitable sensors, which are typically used in the approach of a multi-sensor-system, as well as the corresponding data capturing/acquisition strategies, are presented. The aim of such systems is a geometry- and surface-based analysis in an industrial environment with an accuracy of +/- 1-2 mm or better.
Evaluating the role of coastal hypoxia on the transient expansion of microencruster intervals during the early Aptian
Creators: name: Hueter, Alexander
name: Huck, Stefan
name: Heimhofer, Ulrich
name: Bodin, Stéphane
name: Weyer, Stefan
name: Jochum, Klaus P.
name: Roebbert, Yvonne
name: Immenhauser, Adrian
Publisher: name: Chichester, Sussex : Wiley
Year: 2021
Subjects: subject: Anoxia
subject: cerium anomalies
subject: Cretaceous
subject: Oceanic Anoxic Event 1a
subject: redox proxies
subject: uranium isotopes
subject: Aptian
subject: chemostratigraphy
subject: hypoxia
subject: paleoceanography
subject: paleoenvironment
subject: redox conditions
subject: seawater
subject: uranium isotope
subject: Atlantic Ocean
subject: Atlantic Ocean (North)
subject: Lisboa [Portugal]
subject: Lusitanian Basin
subject: Portugal
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Worldwide, a growing number of modern coastal marine ecosystems are increasingly exposed to suboxic- or even anoxic conditions. Low seawater oxygen levels trigger significant ecosystem changes and may result in mass mortality of oxygen-sensitive biota. The applicability of observations from recent (anthropogenically influenced) suboxic coastal settings to fossil anoxic shallow-marine environments is, however, as yet poorly explored. The test case documented here are upper Barremian to lower Aptian strata in the Lusitanian Basin (Ericeira section, Portugal). These are characterized by the transient demise of rudist–coral communities and the rapid establishment of microencruster facies in the vacant ecological niches. The hypothesis is tested that the temporal expansion of the microencrusting organism Lithocodium aggregatum took place in response to platform-top seawater oxygen depletion. We critically discuss the outcome of a multi-proxy palaeoseawater redox approach (e.g. Rare Earth Elements (REEs), U isotopes and palaeoecology) and put the robustness of the proxies applied here to the test. This is done by considering issues with these methods in general but also emphasizing the significance of terrigenous contamination and fractionation effects. Data shown here document that evidence for coastal seawater oxygen depletion in the prelude of Oceanic Anoxic Event (OAE) 1a is lacking, and hence, anoxia was not the driving mechanism for the demise of rudist–coral ecosystems in the proto-North Atlantic platform setting studied here. In contrast, well-oxygenated early Aptian platform-top water masses are proposed for this site. Geologically short (decades to millennia) fluctuations in seawater oxygen levels cannot be excluded, however. But even if these took place, they offer no explanation for the Kyr to Myr-scale patterns discussed here. The present paper is relevant as it sheds light on the complexity of mechanisms that drive punctuated Early Cretaceous coral–rudist ecosystem turnover, and assess strengths and weaknesses of redox proxies applied to ancient shallow-marine platform carbonates. © 2020 The Authors. Lethaia published by John Wiley & Sons Ltd on behalf of Lethaia Foundation
One Macrocyclic Ring to Rule the Iron: Harnessing Macrocyclic Unsaturation to Tune the Properties of Organometallic Complexes
Creators: name: Clendening, Reese
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: Organometallic chemistry
Inorganic chemistry not elsewhere classified

description: The present body of work has focused on the development of the chemistry of iron complexes of macrocyclic ligands, specifically HMC and HMTI. This has proceeded along two distinct, though related, lines. First, metal-alkynyl complexes have been synthesized, and the effects of the macrocyclic ligand on the metal center – and therefore on the metal-alkynyl bond – have been extensively explored. This is first described for a mono- and bis-alkynyl pair in Chapter 2, in which the general structural and electrochemical features of the Fe(HMTI) motif are delineated. In Chapter 3, the detailed characterization of an iron HMC/HMTI family of complexes is described, which is accompanied by spectroelectrochemical (SEC) analyses and extensive DFT and TD-DFT. Finally, as described in Chapter 4, the understanding gained in the aforementioned works is leveraged to control the properties of mixed-valent complexes based on Fe(HMC/HMTI) bis-alkynyl motif, with a motivation to explore fundamental questions for the development of molecular wires.
 The second realm of exploration has been concerned with understanding ferrous complexes of HMTI at a deeper level – which species have been previously reported but largely uninvestigated. Collaborative efforts have shown that these FeII(HMTI) species can have unusually long excited state lifetimes under the appropriate conditions, as discussed in Chapter 5. Further (unpublished) characterization of this family of complexes is the focus of Chapter 6, which highlights the relationship between the energy of the charge-transfer absorption band and the nature of the axial ligand.
 The novel work outlined above is preceded by introductory material (Chapter 1). This chapter serves to briefly contextualize the body which follows within the landscape of the earlier established (though limited) literature on Fe(HMTI) species. Chapter 1 thus represents an attempt to illustrate the ties throughout what might otherwise (and perhaps still does) appear a disjointed conglomerate of text.