cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Emery vs. Hubbard model for cuprate superconductors: a Composite Operator Method study
Creators: name: Avella, Adolfo
name: Mancini, Ferdinando
name: Mancini, Francesco Paolo
name: Plekhanov, Evgeny
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Within the Composite Operator Method (COM), we report the solution of the Emery model (also known as p-d or three band model), which is relevant for the cuprate high-Tc superconduc- tors. We also discuss the relevance of the often-neglected direct oxygen-oxygen hopping for a more accurate, sometimes unique, description of this class of materials. The benchmark of the solution is performed by comparing our results with the available quantum Monte Carlo ones. Both single- particle and thermodynamic properties of the model are studied in detail. Our solution features a metal-insulator transition at half filling. The resulting metal-insulator phase diagram agrees qual- itatively very well with the one obtained within Dynamical Mean-Field Theory. We discuss the type of transition (Mott-Hubbard (MH) or charge-transfer (CT)) for the microscopic (ab-initio) parameter range relevant for cuprates getting, as expected a CT type. The emerging single-particle scenario clearly suggests a very close relation between the relevant sub-bands of the three- (Emery) and the single- band (Hubbard) models, thus providing an independent and non-perturbative proof of the validity of the mapping between the two models for the model parameters optimal to describe cuprates. Such a result confirms the emergence of the Zhang-Rice scenario, which has been recently questioned. We also report the behavior of the specific heat and of the entropy as functions of the temperature on varying the model parameters as these quantities, more than any other, depend on and, consequently, reveal the most relevant energy scales of the system.
description: 20 pages, 19 figures
Persicaria hydropiper L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: P. Hydropiper L. Cat. 312. l: Collombey (J.); Les Combasses bei Salvan, 1050m (J.). - 2: Saviese (J.). - 3: Unter Riddes (J.);Pfyn(J.). Forma radicans Schur - l: Les IVIarecottes (Garns).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Considering socio-political framings when analyzing coastal climate change effects can prevent maldevelopment on small islands
Creators: name: David, C. Gabriel
name: Hennig, Arne
name: Ratter, Beate M. W.
name: Roeber, Volker
name: , Zahid
name: Schlurmann, Torsten
Publisher: name: [London] : Nature Publishing Group UK
Year: 2021
Subjects: subject: Maldives
subject: climate change
subject: coastal development
subject: detection method
subject: government
subject: Dewey Decimal Classification::500 | Naturwissenschaften

description: Adapting to climate change and sea level rise is challenging on small islands. False adaptation can lead to adverse impacts on natural and societal dynamics. Therefore, an interdisciplinary perspective on the interaction of natural dynamics, societal demands, and political decisions is crucial. In this sense, this study scrutinizes coastal processes and socio-political dimensions of erosion on the reef island Fuvahmulah, the Maldives. The national government and Fuvahmulah’s population have an opposed perception and attribution of the drivers and processes behind Fuvahmulah’s most pressing coastal issue – coastal erosion. To review these perceptions, natural dynamics are recreated with process-based methods and discussed regarding present and projected marine pressures. Population surveys and interviews with actors in coastal development complement the physical insights into erosion on Fuvahmulah and describe the socio-political dimension of climate change adaptation on small islands. This interdisciplinary approach demonstrates how small-islands’ adaptive capacities are typically impaired and disclose the potential of local knowledge to overcome maldevelopment.
Spin coherent states in NMR quadrupolar system: experimental and theoretical applications
Creators: name: Auccaise, R.
name: deAzevedo, E. R.
name: Duzzioni, E. I.
name: Bonagamba, T. J.
name: Moussa, M. H. Y.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Working with nuclear magnetic resonance (NMR) in quadrupolar spin systems, in this paper we transfer the concept of atomic coherent state to the nuclear spin context, where it is referred to as pseudo-nuclear spin coherent state (pseudo-NSCS). Experimentally, we discuss the initialization of the pseudo-NSCSs and also their quantum control, implemented by polar and azimuthal rotations. Theoretically, we compute the geometric phases acquired by an initial pseudo-NSCS on undergoing three distinct cyclic evolutions: $ i) $ the free evolution of the NMR quadrupolar system and, by analogy with the evolution of the NMR quadrupolar system, that of $ii)$ single-mode and $ iii)$ two-mode Bose-Einstein Condensate like system. By means of these analogies, we derive, through spin angular momentum operators, results equivalent to those presented in the literature for orbital angular momentum operators. The pseudo-NSCS description is a starting point to introduce the spin squeezed state and quantum metrology into nuclear spin systems of liquid crystal or solid matter.
TG31 - Using calibrated RF power sensors
Creators: name: Hall, Blair D
Publisher: name: Measurement Standards Laboratory of New Zealand
Year: 2017

description: Power is a fundamental quantity in radio and microwave frequency systems. At lower frequencies, voltage and current are often measured, but at high frequencies these behave in complicated ways that makes their measurement difficult. 
When measuring a high-frequency signal, some incident power is reflected away from the sensor and not detected. The remaining signal is collected, but not all of it is registered by the sensing element, because there is also dissipation within the sensor body. 
These effects mean that the power registered by a sensor is not actually the incident signal power, which was intended to be measured. However, by calibrating a device, these measurement errors can be corrected.
Präzise Satellitenbahnmodellierung am Beispiel der neuen Swarm-Mission
Creators: name: Koch, Igor
name: Alpers, Peter
name: Bashi, Mahsa
name: Flury, Jakob
name: Kröhnert, Damian
name: Naeimi, Majid
name: Schilling, Manuel
name: Shabanloui, Akbar
Publisher: name: Leibniz Universität Hannover
Year: 2015
Subjects: subject: Precise Satellite Orbit Modeling
subject: Swarm mission
subject: Präzise Satellitenbahnmodellierung
subject: Swarm-Mission
subject: Dewey Decimal Classification::500 | Naturwissenschaften::520 | Astronomie, Kartographie
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::629,1 | Luft- und Raumfahrttechnik

description: Präzise Satellitenbahnmodellierung am Beispiel der neuen SWARM-Mission
Broadening the Scope of Nanopublications
Creators: name: Kuhn, Tobias
name: Barbano, Paolo Emilio
name: Nagy, Mate Levente
name: Krauthammer, Michael
Publisher: name: arXiv
Year: 2013
Subjects: subject: Digital Libraries (cs.DL)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: In this paper, we present an approach for extending the existing concept of nanopublications --- tiny entities of scientific results in RDF representation --- to broaden their application range. The proposed extension uses English sentences to represent informal and underspecified scientific claims. These sentences follow a syntactic and semantic scheme that we call AIDA (Atomic, Independent, Declarative, Absolute), which provides a uniform and succinct representation of scientific assertions. Such AIDA nanopublications are compatible with the existing nanopublication concept and enjoy most of its advantages such as information sharing, interlinking of scientific findings, and detailed attribution, while being more flexible and applicable to a much wider range of scientific results. We show that users are able to create AIDA sentences for given scientific results quickly and at high quality, and that it is feasible to automatically extract and interlink AIDA nanopublications from existing unstructured data sources. To demonstrate our approach, a web-based interface is introduced, which also exemplifies the use of nanopublications for non-scientific content, including meta-nanopublications that describe other nanopublications.
description: To appear in the Proceedings of the 10th Extended Semantic Web Conference (ESWC 2013)
Comparative study on ozonation and catalytic ozonation using MgO@Fe3O4 magnetic nanoparticles for the removal of phenylamine from aqueous solutions
Creators: name: Asgari, Esrafil
name: Sheikhmohammadi, Amir
name: Fazli, Mehran Mohammadian
name: Aali, Rahim
name: Mohammadi, Farzad
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified

description: In this research, the performance of catalytic ozonation process (COP) with MgO@Fe3O4 magnetic nanocomposite for phenylamine removal from aqueous solution in a batch environment was evaluated. The features of the catalyst were determined by the FE-SEM, EDS, XRD, VSM and TEM techniques. The effect of several operating parameters such as solution pH, reaction time, catalyst dosage, ozone dose and the initial phenylamine concentrations was investigated in parallel with a single ozonation process (SOP). The effect of the scavengers was assessed. Possible mechanisms, by-products identification and pathway of degradation were also performed. The mineralisation rate was analysed with COD and TOC tests, respectively. The results indicated that the highest efficiency of phenylamine degradation (98.5%) and mineralisation with COD (74%) and TOC (51%) happens in the COP under the optimum conditions (pH = 11.0, reaction time = 30 min, catalyst dosage = 2.0 g/L, ozone dose = 0.38 g/h, phenylamine concentration = 10 mg/L), respectively. The experimental data were in good agreement with pseudo-first-order kinetic model. The toxicity of untreated phenylamine solution revealed that have higher acute toxicity for Daphnia magna than the phenylamine treated solution with COP. The hydroxyl radicals were dominant species during phenylamine degradation. The reusability of the catalyst was evaluated, indicating a 4.7% decrease in performance after six consecutive cycles of the process. As compared to SOP, a significant synergistic effect was observed between ozone and MgO@Fe3O4. It can be concluded that application of MgO@Fe3O4 in catalytic ozonation process is as a successful and promising method for phenylamine degradation of aqueous solutions.
Higginsia petrosioides Dendy 1922
Creators: name: Morrow, Christine
name: Cárdenas, Paco
name: Boury-Esnault, Nicole
name: Picton, Bernard
name: Mccormack, Grace
name: Soest, Rob Van
name: Collins, Allen
name: Redmond, Niamh
name: Maggs, Christine
name: Sigwart, Julia
name: Allcock, Louise A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Porifera
Demospongiae
Axinellida
Stelligeridae
Higginsia
Higginsia petrosioides

description: Higginsia petrosioides Dendy, 1922 (p. 126, pl. 7, fig. 9)
Material examined: Holotype BMNH RN CXXXII.2, Seychelles, Indian Ocean, 20 October 2005, 44 fathoms (80 m), ‘Sealark’ (slide only).
DNA sequences: CO1 Folmer fragment (GenBank accession no. EU146439) from QM G300611.
Remarks: The centrotylote swelling on the oxea is only slightly noticeable in this species. The oxea are often bifurcate at one or both ends (Fig. 13C). Flanged ends to the oxea are also found in Higginsia bidentifera, Halicnemia verticillata and Paratimea dentata (BELUM Mc 6884).
description: Published as part of Morrow, Christine, Cárdenas, Paco, Boury-Esnault, Nicole, Picton, Bernard, Mccormack, Grace, Soest, Rob Van, Collins, Allen, Redmond, Niamh, Maggs, Christine, Sigwart, Julia & Allcock, Louise A., 2019, Integrating morphological and molecular taxonomy with the revised concept of Stelligeridae (Porifera: Demospongiae), pp. 31-81 in Zoological Journal of the Linnean Society 187 on page 63
Differential inductive sensing system for truly contactless measuring of liquids’ electromagnetic properties in tubing
Creators: name: Berger, Marc
name: Zygmanowski, Anne
name: Zimmermann, Stefan
Publisher: name: Basel : MDPI
Year: 2021
Subjects: subject: Contactless measurement
subject: Dialysis treatment
subject: Differential inductive sensor
subject: Differential transformer
subject: Hose guides sample
subject: Inductive conductivity measurement
subject: PCB coil
subject: Sodium monitoring
subject: Tubing guides sample
subject: Biomedical engineering
subject: Blood
subject: Ferrite
subject: Patient treatment
subject: Process control
subject: Risk assessment
subject: Winding
subject: Chemical process control
subject: Critically-ill patients
subject: Differential transformers
subject: Electromagnetic properties
subject: Experimental validations
subject: Medical technologies
subject: Renal replacement therapies
subject: Tubing
subject: chemical phenomena
subject: electric conductivity
subject: electromagnetism
subject: equipment design
subject: human
subject: theoretical model
subject: Chemical Phenomena
subject: Electric Conductivity
subject: Electromagnetic Phenomena
subject: Equipment Design
subject: Humans
subject: Models, Theoretical
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Certain applications require a contactless measurement to eliminate the risk of sensorinduced sample contamination. Examples can be found in chemical process control, biotechnology or medical technology. For instance, in critically ill patients requiring renal replacement therapy, continuous in‐line monitoring of blood conductivity as a measure for sodium should be considered. A differential inductive sensing system based on a differential transformer using a specific flow chamber has already proven suitable for this application. However, since the blood in renal replacement therapy is carried in plastic tubing, a direct measurement through the tubing offers a contactless method. Therefore, in this work we present a differential transformer for measuring directly through electrically non‐conductive tubing by winding the tube around the ferrite core of the transformer. Here, the dependence of the winding type and the number of turns of the tubing on the sensitivity has been analyzed by using a mathematical model, simulations and experimental validation. A maximum sensitivity of 364.9 mV/mol/L is measured for radial winding around the core. A longitudinal winding turns out to be less effective with 92.8 mV/mol/L. However, the findings prove the ability to use the differential transformer as a truly contactless sensing system. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Private sector PrEP delivery policy and regulatory landscaping in Sub-Saharan Africa
Creators: name: Rencken, Cami
name: Azie, Jacinta Ifunanya
name: Yang, Angela
name: Levin, Carol
name: START Center
Publisher: name: Gates Open Research
Year: 2023

description: The primary objective of this project was to conduct a landscape assessment of regulatory and policy barriers to PrEP (oral and long-acting) delivery through private sector pharmacies and clinics across Sub-Saharan Africa.
Polycyclic aromatic hydrocarbons in urban and industrial soils of Kerman, the largest city in southeast of Iran: status, source apportionment, ecotoxicology, and health risk assessment
Creators: name: Abbasnejad, Behnam
name: Keshavarzi, Behnam
name: Mohammadi, Zargham
name: Yu, Qiming Jimmy
name: Moore, Farid
name: Abbasnejad, Ahmad
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified

description: In this study, pollution level, distribution, toxicity, molecular composition, probable sources as well as health risks of polycyclic aromatic hydrocarbons (PAHs) in urban and industrial soils of Kerman metropolis were investigated. Kerman is a fast-growing city and a fine example of an arid city in a developing country. For this purpose, concentrations of 16 individual PAHs in 30 samples taken from the city soils and its industrial zones were determined by gas chromatography/mass spectrometry. The ∑PAHs concentration in urban soil samples varied from 26.1 to 902.8 μg/kg, with the mean and median of 302.6 and 148.4 µg/kg, respectively. In comparison, ∑PAHs in industrial soils ranged from 26.8to 251.9 μg/kg, with the mean and median values of 65.9 and 42.9 µg/kg, respectively. Four-ring PAHs comprise the dominant compounds in urban soils, whereas, two- and three-ring PAHs proved to be the most abundant compounds in industrial soils. Source apportionment was conducted using ring classification, diagnostic ratios, PCA, and multilinear regression (MLR). Also, human health risk assessment was undertaken through employing US EPA standard statistical models. This survey revealed that PAH pollution in urban soils originates mainly from fossil fuel combustion and in industrial soils from petrogenic sources. On the whole, in the Kerman environment, the shares of petroleum combustion, natural gas combustion, and petrogenic sources were 45.32%, 34%, and 20.68% respectively. Based on this study, the ecological risk of PAHs was low-to-moderate, and incremental lifetime cancer risk for children and adults were 1.35 × 10−4 and 1.04 × 10−4 respectively, indicating rather high risks.
Are Friends Overrated? A Study for the Social News Aggregator Digg.com
Creators: name: Doerr, Christian
name: Blenn, Norbert
name: Tang, Siyu
name: Van Mieghem, Piet
Publisher: name: arXiv
Year: 2013
Subjects: subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The key feature of online social networks (OSN) is the ability of users to become active, make friends and interact via comments, videos or messages with those around them. This social interaction is typically perceived as critical to the proper functioning of these platforms; therefore, a significant share of OSN research in the recent past has investigated the characteristics and importance of these social links, studying the networks' friendship relations through their topological properties, the structure of the resulting communities and identifying the role and importance of individual members within these networks. In this paper, we present results from a multi-year study of the online social network Digg.com, indicating that the importance of friends and the friend network in the propagation of information is less than originally perceived. While we do note that users form and maintain a social structure along which information is exchanged, the importance of these links and their contribution is very low: Users with even a nearly identical overlap in interests react on average only with a probability of 2% to information propagated and received from friends. Furthermore, in only about 50% of stories that became popular from the entire body of 10 million news we find evidence that the social ties among users were a critical ingredient to the successful spread. Our findings indicate the presence of previously unconsidered factors, the temporal alignment between user activities and the existence of additional logical relationships beyond the topology of the social graph, that are able to drive and steer the dynamics of such OSNs.
The Intrinsic Shape of Galaxies in SDSS/Galaxy Zoo
Creators: name: Rodríguez, Silvio
name: Padilla, Nelson D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: By modelling the axis ratio distribution of SDSS DR8 galaxies we find the intrinsic 3D shapes of spirals and ellipticals. We use morphological information from the Galaxy Zoo project and assume a non-parametric distribution intrinsic of shapes, while taking into account dust extinction. We measure the dust extinction of the full sample of spiral galaxies and find a smaller value than previous estimations, with an edge-on extinction of $E_0 = 0.284^{+0.015}_{-0.026}$ in the SDSS r band. We also find that the distribution of minor to major axis ratio has a mean value of $ 0.267 \pm 0.009 $, slightly larger than previous estimates mainly due to the lower extinction used; the same affects the circularity of galactic discs, which are found to be less round in shape than in previous studies, with a mean ellipticity of $0.215 \pm 0.013$. For elliptical galaxies, we find that the minor to major axis ratio, with a mean value of $0.584 \pm 0.006$, is larger than previous estimations due to the removal of spiral interlopers present in samples with morphological information from photometric profiles. These interlopers are removed when selecting ellipticals using Galaxy Zoo data. We find that the intrinsic shapes of galaxies and their dust extinction vary with absolute magnitude, colour and physical size. We find that bright elliptical galaxies are more spherical than faint ones, a trend that is also present with galaxy size, and that there is no dependence of elliptical galaxy shape with colour. For spiral galaxies we find that the reddest ones have higher dust extinction as expected, due to the fact that this reddening is mainly due to dust. We also find that the thickness of discs increases with luminosity and size, and that brighter, smaller and redder galaxies have less round discs.
description: 15 pages, 16 figures, submitted to MNRAS
Convolvulus L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: P. Convolvulus L. Cat. 311. Verbreitet (auch Simplonsüdseite). Bis 2565m: beim Hotel Riffelberg ob Zermatt, Dungstelle (Sechererl950).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Experimental validation of a compact mixed-flow compressor for an active high-lift system
Creators: name: Kauth, Felix
name: Maroldt, Niklas
name: Seume, Jörg R.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2019
Subjects: subject: Aspect ratio
subject: Computational fluid dynamics
subject: Forecasting
subject: Turbulence models
subject: Commercial aircraft
subject: Experimental validations
subject: High rotational speed
subject: Mixed flow compressors
subject: Percentage points
subject: Performance prediction
subject: Polytropic efficiency
subject: Very low aspect ratios
subject: Gas compressors
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Compact, electrically-driven compressors are a core component of a novel active high-lift system for future commercial aircraft. A newly-developed aeromechanical optimization process was used to design the compressor stage. The optimization resulted in an unusual mixed-flow compressor design with very low aspect ratio blades and a high rotational speed of up to 60,000 rpm. Due to the unusual design, experimental validation of the performance predictions by means of CFD is necessary. This paper presents the first experimental results obtained using a preliminary prototype at part-speed, i.e. rotational speeds from 20,000 to 30,000 rpm. The experimentally-determined pressure ratios deviate up to 1.5 %, the polytropic efficiencies up to 4 percentage points from the CFD predictions. Besides the deficiencies of available turbulence models, the underestimation of overall losses is presumably due to the omission of the volute in the CFD model. An experimental validation of the CFD predictions at full-speed is under way.
Quantum reflection from an oscillating surface
Creators: name: Herwerth, Benedikt
name: DeKieviet, Maarten
name: Madronero, Javier
name: Wimberger, Sandro
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We describe an experimentally realistic situation of the quantum reflection of helium atoms from an oscillating surface. The temporal modulation of the potential induces clear sidebands in the reflection probability as a function of momentum. Theses sidebands could be exploited to slow down atoms and molecules in the experiment.
description: 9 pages, 4 figures
Measurement of orbital asymmetry and strain in Co90Fe10/Ni multilayers and alloys: Origins of perpendicular anisotropy
Creators: name: Shaw, Justin M.
name: Nembach, Hans T.
name: Silva, T. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We use broadband ferromagnetic resonance spectroscopy and x-ray diffraction to investigate the fundamental origin of perpendicular anisotropy in Co90Fe10/Ni multilayers. By careful evaluation of the spectroscopic g-factor, we determine the orbital moment along the out-of-plane and in-plane directions. For the multilayers, we find a direct relationship between the orbital moment asymmetry and the perpendicular anisotropy, consistent with the theory of Bruno [P.Bruno, Phys. Rev. B, 39, 865 (1989)]. A systematic x-ray diffraction study revealed the presence of a trigonal strain as high as 0.7 % in some samples. However, we found no direct correlation between the strain and the anisotropy, indicating that the anisotropy is not dominated by magnetoelastic effects. In order to further study the interface structure on the anisotropy, we prepared a set of equivalent alloy samples. The strain in the alloy samples was comparable to that of the multilayer samples; however the orbital moment asymmetry in the alloy samples showed a very different trend allowing us to isolate the effect of the interfaces in the multilayers.
description: In press at Physical Review B
Tube well platform colour, as a proxy for identification of arsenic contaminated wells - case study from, alluvial aquifers of eastern India
Creators: name: Chatterjee, Rhitwik
name: Mal, Ujjal
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified

description: Arsenic contamination in groundwater of Bengal basin was first reported in early 80s. Even after two decades of extensive research, our ability to pinpoint the arsenic-free sources, with precision, is limited. Proxies as indicator of arsenic concentration in groundwater are also lacking. It is imperative to formulate some cost-effective, user-friendly screening tool for the detection of arsenic safe wells. The present study utilises validation tests, colourimetry and statistics, to validate the platform colour hypothesis. Results show that red-stained platforms can identify arsenic-contaminated wells with 83% certainty; while black-stained platforms identify arsenic safe wells with 62% certainty, 78% sensitivity and 69% specificity. Black-coloured well platforms identify manganese-contaminated wells with 96% certainty; while red-stained well platforms mark manganese safe wells with 36% certainty and 93% specificity. The performances of such tests improve with increasing prevalence. A comprehensive colour chart thus prepared can be used as handy tool for identification of arsenic-contaminated wells.
Persicaria minus
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: P. minus X Persicaria- l: Medettaz bei Salvan (J. 1917).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
title: Archäologische Informationen, Vol 11, No 1 (1988): Archäologische Informationen
Creators: name: DGUF E.V.
Publisher: name: University Library Heidelberg
Year: 2016

description: Archäobotanik
description: Archäobotanik
description: Titel
 Vorwort...4-5
 Inhalt...6-7
 Jahrring und Holz als Informationsträger...8-15
 Schaufenster in die Archäologie des Dürener Landes - die Archäologische Abteilung des Leopold-Hoesch-Museums Düren...79-81
 Siedlungsarchäologische Untersuchungen zwischen Leine und Weser. Zur Besiedlungsgeschichte einer Mittelgebirgslandschaft (am Beispiel von Solling und Moringer Becken)...89-90
 Das Mittelpaläolithikum von Herne, Bottrop und Essen-Dellwig...91-92
 Die Grabungsfläche 1984/85 in der Westwand-Fundschicht von Rheindahlen...93-94
 Zur Analyse verkohlter pflanzlicher Reste aus Siedlungsgrabungen...16-20
 Zur Auswertung von Wildpflanzenfunden aus dem Neolithikum des Rheinlandes...20-32
 Einige Aspekte zur Anwendung der Pollenanalyse in der Ur- und Frühgeschichtsforschung...32-38
 Botanisch-archäologische Beobachtungen in einem afrikanischen Hochgebirge. Aspekte zur prähistorischen Besiedlung eines ariden Gunstraumes...53-73
 Meinungen, Kentnisse, Fakten und Interpretationen in der Steinzeitforschung. Eine methodologische Verschnaufpause...74-78
 Bericht über das Symposium: Die Erforschung der Eisenzeit im Hunsrück...83-87
 Kultur gegen Krieg - Wissenschaft für den Frieden...87-88
 Der Magdalénien-Fundplatz Schussenquelle unter besonderer Berücksichtigung der Steinartefakte aus der Grabung von 1866...95-96
 Untersuchungen zur Steingerät-Grundformproduktion der Kulturschichtenfolgen vom Zigeunerfels und der Jägerhaushöhle (Spätpaläolithikum - Mesolithikum)...96-97
 Studien zur kaiserzeitlichen Besiedlung der Marschen in Dithmarschen...102-106
 Early Man News 9/10/11 Part I. Newsletter for Human Palecology. Tübingen 1984/85/86...107-108
 Nachrichten / Deutsche Gesellschaft für Ur- und Frühgeschichte (DGUF)...109-110
Context-aware Sensor Search, Selection and Ranking Model for Internet of Things Middleware
Creators: name: Perera, Charith
name: Zaslavsky, Arkady
name: Christen, Peter
name: Compton, Michael
name: Georgakopoulos, Dimitrios
Publisher: name: arXiv
Year: 2013
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: As we are moving towards the Internet of Things (IoT), the number of sensors deployed around the world is growing at a rapid pace. Market research has shown a significant growth of sensor deployments over the past decade and has predicted a substantial acceleration of the growth rate in the future. It is also evident that the increasing number of IoT middleware solutions are developed in both research and commercial environments. However, sensor search and selection remain a critical requirement and a challenge. In this paper, we present CASSARAM, a context-aware sensor search, selection, and ranking model for Internet of Things to address the research challenges of selecting sensors when large numbers of sensors with overlapping and sometimes redundant functionality are available. CASSARAM proposes the search and selection of sensors based on user priorities. CASSARAM considers a broad range of characteristics of sensors for search such as reliability, accuracy, battery life just to name a few. Our approach utilises both semantic querying and quantitative reasoning techniques. User priority based weighted Euclidean distance comparison in multidimensional space technique is used to index and rank sensors. Our objectives are to highlight the importance of sensor search in IoT paradigm, identify important characteristics of both sensors and data acquisition processes which help to select sensors, understand how semantic and statistical reasoning can be combined together to address this problem in an efficient manner. We developed a tool called CASSARA to evaluate the proposed model in terms of resource consumption and response time.
Model comparison of the dark matter profiles of Fornax, Sculptor, Carina and Sextans
Creators: name: Breddels, M. A.
name: Helmi, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use orbit based dynamical models to fit the 2nd and 4th moments of the line of sight velocity distributions of the Fornax, Sculptor, Carina and Sextans dwarf spheroidal galaxies. Our goal is to compare dark matter profile models of these four systems using Bayesian evidence. We consider NFW, Einasto and several cored profiles for their dark halos and present the probability distribution functions of the model parameters. When considering each system separately, we find there is no preference for one of these specific parametric density profiles. However, the combined evidence shows that it is unlikely that all galaxies are embedded in the same type of cored profiles of the form ρ_{DM} \propto 1/(1 + r^2)^{β/2}, where β= 3, 4. For each galaxy, we also obtain an almost model independent, and therefore accurate, measurement of the logarithmic slope of the dark matter density distribution at a radius ~ r_{-3}, i.e. where the logarithmic slope of the stellar density profile is -3. This slope ranges from ~ -1.4 for Fornax to ~ -1.1 for Sextans, both at ~ 1 kpc. All our best fit models essentially have the same mass distribution over a large range in radius (from just below r_{-3} to the last measured data point). This remarkable finding likely implies much stronger constraints on the characteristics that subhalos extracted from cosmological simulations should have in order to host the dSph galaxies around the Milky Way.
description: 10 pages, 7 figures, submitted to A&A
Managing immune health in sports – A practical guide for athletes and coaches [Infektprävention im Leistungssport – Ein praktischer Leitfaden für Trainer und Sportler]
Creators: name: Palmowski, J.
name: Boßlau, T.K.
name: Ryl, L.
name: Krüger, K.
name: Reichel, T.
Publisher: name: Augsburg : Dynamic Media Sales Verlag
Year: 2019
Subjects: subject: Exercise
subject: Immune disturbance
subject: Immune system
subject: Training
subject: Upper respiratory tract infections
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::790 | Freizeitgestaltung, Darstellende Kunst::793 | Spiel
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::790 | Freizeitgestaltung, Darstellende Kunst::796 | Sport

description: The prevention of infectious diseases is particularly important in athletes who need a good all-season health status to be optimally prepared for competition. › Since the immune system is highly responsive to exercise, periods of intensified training induce a transient immune dysfunction. Athletes regularly encounter additional challenges, such as low energy availability, oxidative stress, psychological stress, sleep disruption, long-haul travel, overreaching periods and an imbalance of exercise and recovery. Moreover, exercise training performed in specific environments, such as high altitude, cold or heat, represents an even higher than usual threat to the immune function. › This review summarizes various recommendations which should help to reduce the athlete’s immune disturbances and the risk of infection. An appropriate management of external and internal exercise loads, adequate recovery, as well as maintaining energy homeostasis by sufficient energy, fluid, and macronutrient intake is recommended. The observance of sleep hygiene strategies, general vaccination advice and instructions for exercising in specific environments is beneficial. Compliance with fundamental hygiene strategies can also reduce pathogen exposure in athletes and thus contribute to maintaining health. › It is concluded that these main strategies of protection against infection should be included in the early education of coaches and young athletes, leading to more professional management of disease prevention.
Messung der Zylinderverformung von Aluminiumkurbelgehäusen für Dieselmotoren
Creators: name: Kuhn, Thorsten
Publisher: name: Hannover : Universität
Year: 2001
Subjects: subject: Cylinder bore deformation
subject: aluminium crankcases
subject: piston assembly group
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
High-efficiency squeezed light generation for gravitational wave detectors
Creators: name: Mehmet, M.
name: Vahlbruch, H.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2019
Subjects: subject: gravitational wave detection
subject: quantum engineering
subject: squeezed vacuum states of light
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The engineering of strongly squeezed vacuum states of light is a key technology for the reduction of quantum noise in gravitational wave detectors. We report on the observation of up to 12.0 dB squeezed vacuum states of light at the wavelength of 1064 nm in the frequency band from 10 Hz to 100 kHz. This is the strongest squeezing reported to date within this detection band. The squeezed states were generated in a half-monolithic, standing-wave cavity optical parametric amplifier, which was resonant for the fundamental and harmonic light fields. We chose appropriate reflectivities to obtain a significant reduction of the required pump power, which was 8.6 mW only. Our analysis revealed that the residual measurement phase noise was smaller than 3.5 mrad rms and that the squeezed light source provided up to 14 dB of squeezing for a downstream application. The experiment was electronically stabilized in all relevant degrees of freedom, demonstrating the applicability of the linear, doubly resonant cavity topology for current and future gravitational wave detectors.
Oscillatory instability of fully 3D flow in a cubic diagonally lid-driven cavity
Creators: name: Feldman, Yuri
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A transition to unsteadiness of a flow inside a cubic diagonally lid-driven cavity with no-slip boundaries is numerically investigated by a series of direct numerical simulations (DNS) performed on 100^3 and 200^3 stretched grids. It is found that the observed oscillatory instability is setting in via a subcritical symmetry-breaking Hopf bifurcation. The instability evolves on two vortices in a coupled manner. Critical values of Reynolds number Recr=2320 and non-dimensional angular oscillating frequency omegacr=0.249 for transition from steady to oscillatory flow are accurately estimated. Characteristic patterns of the 3D oscillatory flow are presented.
NLTT5306: The shortest Period Detached White Dwarf + Brown Dwarf Binary
Creators: name: Steele, P. R.
name: Saglia, R. P.
name: Burleigh, M. R.
name: Marsh, T. R.
name: Gänsicke, B. T.
name: Lawrie, K.
name: Cappetta, M.
name: Girven, J.
name: Napiwotzki, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have spectroscopically confirmed a brown dwarf mass companion to the hydrogen atmosphere white dwarf NLTT5306. The white dwarf's atmospheric parameters were measured using Sloan Digital Sky Survey and X-Shooter spectroscopy as T_eff=7756+/-35K and log(g)=7.68+/-0.08, giving a mass for the primary of M_WD=0.44+/-0.04 M_sun, at a distance of 71+/-4 pc with a cooling age of 710+/-50 Myr. The existence of the brown dwarf secondary was confirmed through the near-infrared arm of the X-Shooter data and a spectral type of dL4-dL7 was estimated using standard spectral indices. Combined radial velocity measurements from the Sloan Digital Sky Survey, X-Shooter and the Hobby-Eberly Telescope's High Resolution Spectrograph of the white dwarf gives a minimum mass of 56+/-3 M_jup for the secondary, confirming the substellar nature. The period of the binary was measured as 101.88+/-0.02 mins using both the radial velocity data and i'-band variability detected with the INT. This variability indicates 'day' side heating of the brown dwarf companion. We also observe Hα emission in our higher resolution data in phase with the white dwarf radial velocity, indicating this system is in a low level of accretion, most likely via a stellar wind. This system represents the shortest period white dwarf + brown dwarf binary and the secondary has survived a stage of common envelope evolution, much like its longer period counterpart, WD0137-349. Both systems likely represent bona-fide progenitors of cataclysmic variables with a low mass white dwarf and a brown dwarf donor.
description: 9 pages, 11 figures, accepted for publication in MNRAS
Automatic Detection of Non-deverbal Event Nouns for Quick Lexicon Production
Creators: name: Bel, Núria
name: Coll, Maria
name: Resnik, Gabriela
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: In this work we present the results of our experimental work on the develop-ment of lexical class-based lexica by automatic means. The objective is to as-sess the use of linguistic lexical-class based information as a feature selection methodology for the use of classifiers in quick lexical development. The results show that the approach can help in re-ducing the human effort required in the development of language resources sig-nificantly.
description: 7 pages, 2 figures. Also available in UPF institutional repository (http://hdl.handle.net/10230/20325)
Sensitivity analysis of the PALM model system 6.0 in the urban environment
Creators: name: Belda, Michal
name: Resler, Jaroslav
name: Geletič, Jan
name: Krč, Pavel
name: Maronga, Björn
name: Sühring, Matthias
name: Kurppa, Mona
name: Kanani-Sühring, Farah
name: Fuka, Vladimír
name: Eben, Kryštof
name: Benešová, Nina
name: Auvinen, Mikko
Publisher: name: Katlenburg-Lindau : Copernicus
Year: 2021
Subjects: subject: heat capacity
subject: radiation balance
subject: residential location
subject: sensitivity analysis
subject: surface roughness
subject: thermal conductivity
subject: urban ecosystem
subject: Czech Republic
subject: Prague [Czech Republic]
subject: Dewey Decimal Classification::900 | Geschichte und Geografie::910 | Geografie, Reisen

description: Sensitivity of the PALM model 6.0 with respect to land-surface and building properties is tested in a real urban environment in the vicinity of a typical crossroads in a densely built-up residential area in Prague, Czech Republic. The turbulence-resolving PALM is able to simulate the urban boundary layer flow for realistic setups. Besides an accurate representation of the relevant physical processes, the model performance also depends on the input data describing the urban setup, namely the building and land-surface properties. Two types of scenario are employed. The first one is the synthetic scenarios altering mainly surface and material parameters such as albedo, emissivity or wall conductivity, testing sensitivity of the model simulations to potentially erroneous input data. Second, urbanistic-type scenarios are analysed, in which commonly considered urban heat island mitigation measures such as greening of the streets or changing surface materials are applied in order to assess the limits of the effects of a particular type of scenario. For the synthetic scenarios, surface parameters used in radiation balance equations are found to be the most sensitive overall followed by the volumetric heat capacity and thermal conductivity of walls. Other parameters show a limited average effect; however, some can still be significant during some parts of the day, such as surface roughness in the morning hours. The second type, the urbanistic scenarios, shows urban vegetation to be the most effective measure, especially when considering both physical and biophysical temperature indicators. The influence of both types of scenario was also tested for air quality, specifically PM2.5 dispersion, which generally shows opposite behaviour to that of thermal indicators; i.e. improved thermal comfort brings deterioration of PM2.5 concentrations. © 2021 Michal Belda et al.
GEO 600: Building a gravitational wave observatory
Creators: name: Hewitson, Martin
Publisher: name: Trieste : Sissa Medialab Srl
Year: 2005
Subjects: subject: Gravitational effects
subject: Gravity waves
subject: Laser interferometry
subject: Observatories
subject: Orbits
subject: Signal detection
subject: Base line
subject: Commissioning phase
subject: GEO 600
subject: Gravitational wave detectors
subject: Gravitational-wave observatory
subject: International networks
subject: Laser interferometric
subject: High energy physics
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: An international network of laser-interferometric gravitational wave detectors is nearing the end of the main commissioning phase and will soon enter into an extended observational period, collecting data for a duration of order one year. This article outlines the construction, design and commissioning of the GEO 600 gravitational wave observatory. GEO 600 is a laser-interferometric gravitational wave detector which has 600 m long arms and uses advanced optical and suspension techniques to achieve a sensitivity comparable to the longer base-line detectors currently operating in the U.S.A and Europe.
Modelling Vibrational Dissociation of [H2–HCO]+
Creators: name: Kraus, Peter
name: Alznauer, H. Tobias
name: Frank, Irmgard
Publisher: name: Hoboken, NJ : Wiley-Blackwell Publishing, Inc.
Year: 2019
Subjects: subject: Car-Parrinello
subject: formyl cation
subject: hydrogen complex
subject: Molecular dynamics
subject: non-covalent interactions
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: The [H2–HCO]+ complex is likely to be one of the most important complexes in interstellar space, as it is a complex of the most abundant interstellar species. In the current work, we investigate the interaction energy and potential surface of the complex using a range of computational methods. The dynamics of the complex are investigated by incorporating an external time-dependent field into Car-Parrinello molecular dynamics (CPMD) and inducing a vibrationally activated dissociation. This excitation method is compared to a normal-mode excitation from the equilibrium structure. The results agree well with the available experimental data: an excitation to the first vibrationally-excited state of either of the high-frequency HCO+ modes (ν2, ν3) causes a dissociation of the complex on picosecond timescales.