cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: The effect of halide and metal ions on the corrosion of aluminium in ethylene glycol solutions
Creators: name: Prigmore, Robert Marshall
Publisher: name: The Open University
Year: 1985

description: Aluminium components attached to an engine cooling system, will be exposed to 50% ethanediol coolant contaminated with metal cations and halide anions. Since copper cations enhance the corrosion rate of aluminium, the effect of other metal cations of metals commonly found in the cooling system on the corrosion rate were evaluated. Aluminium samples were exposed to 50% ethanediol solutions containing various metals and metal cations. Previous work has shown that halide anion size and concentration have an effect on the corrosion potential of aluminium, but the effects of metal cations have not. been evaluated. A new corrosion cell was designed and built to evaluate these effects. The nobility of the pitting potential of aluminium has been observed to decrease with chloride anion concentration and temperature increase in double distilled water. Potentiodynamic and potentiostatic experiments were therefore carried out to determine whether similar effects are observed with fluoride, bromide and iodide. Theoretically, if the penetration theory of pitting initiation is correct, then the nobility of Ep should increase with halide anion size. It was concluded from the experimental work that:- (1) Lead cations in the presence of chloride anions initiate corrosion of aluminium. (2) Lead and copper cations in halide solutions shift the corrosion potential of aluminium to more noble values before deposition. Nobility continued to increase with metal cation concentration until the pitting potential was achieved and then levelled off. It is proposed that this effect is due to metal cations disrupting the outer Helmholtz plane. (3) Ep values of aluminium in double distilled water and 50% ethanediol decreased in nobility with increase in halide concentration and solution temperature for all four halides. (4) The fluoride Ep values were out of sequence, these values being as noble as those of iodide. A film was observed to form on aluminium exposed to the fluoride solution. It is proposed that this film increases the nobility of the pitting potential.
Brane-antibrane systems and the thermal life of neutral black holes
Creators: name: Saremi, Omid
name: Peet, Amanda W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A brane-antibrane model for the entropy of neutral black branes is developed, following on from the work of Danielsson, Guijosa and Kruczenski [1]. The model involves equal numbers of Dp-branes and anti-Dp-branes, and arbitrary angular momenta, and covers the cases p=0,1,2,3,4. The thermodynamic entropy is reproduced by the strongly coupled field theory, up to a power of two. The strong-coupling physics of the p=0 case is further developed numerically, using techniques of Kabat, Lifschytz et al. [2,3], in the context of a toy model containing the tachyon and the bosonic degrees of freedom of the D0-brane and anti-D0-brane quantum mechanics. Preliminary numerical results show that strong-coupling finite-temperature stabilization of the tachyon is possible, in this context.
description: 30 pages LaTeX, 2 figures
Geospatial evaluation of UNESCO world heritage forest areas in the tropics (Honduras)
Creators: name: Kumar, Mukesh
name: Kumar, Navneet
Publisher: name: Geographisches Institut der Universität zu Köln - Kölner Geographische Arbeiten
Year: 2011
Subjects: subject: Other
subject: None
subject: Landsat
subject: Classification
subject: NDVI
subject: Remote Sensing

description: The study aimed at providing a better understanding for monitoring the status, change and threats to UNESCO world heritage areas that are present in the tropical forest. Three change detection techniques were tested using Landsat images for detecting areas of change in the region of the Rio Platino Biosphere Reserve, a tropical rain forest in Honduras. The change detection techniques considered were image differencing, post-classification analysis using supervised classification and vegetation index differencing (NDVI differencing). Two Landsat scenes recorded in January 1986 and December 2002 were downloaded from USGS. Images were geometrically and radiometrically corrected and the three change detection techniques were tested. Change maps obtained from each technique were visually interpreted. In order to determine the accuracy of each change map, random points were generated using systematic sampling. For each random point, change/no change was separately evaluated by using high resolution data (Google Earth data) and a confusion matrix method. Image differencing for band 2 was found to be the most accurate one, followed by supervised classification and NDVI. Image differencing using band 3 was found to be less accurate than supervised and NDVI differencing. Supervised classification was selected for calculating area statistics inside and outside the UNESCO protected boundary because of the advantage of indicating the nature of changes. The study revealed two important changes in clear-cut areas and in regrowth areas. Clear-cutting has been found to be more frequent outside than inside the protected boundary of the forested UNESCO World Heritage Site.
description: Proceedings on the Workshop of Remote Sensing Methods for Change Detection and Process Modelling, 18-19 November 2010, University of Cologne, Germany, Kölner Geographische Arbeiten, 92, pp. 71-78
Boosting vector leptoquark searches with boosted tops
Creators: name: Bhaskar, Arvind
name: Mandal, Tanumoy
name: Mitra, Subhadip
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: At the LHC, a TeV-scale leptoquark (LQ) that decays dominantly to a top quark ($t$) and a light charged lepton ($\ell=e,μ$) would form a resonance system of \emph{boosted-$t$ $+$ high-$p_{\rm T}$-$\ell$}. We consider all possible vector LQ models within the Buchmüller-Rückl-Wyler classifications with the desired decay. We propose simple phenomenological Lagrangians that are suitable for bottom-up/experimental studies and, at the same time, can cover the relevant parameter spaces of these models. In this simplified framework, we study the pair and single production channels of vector LQs at the LHC. Interestingly, we find that, like the pair production, the cross sections of some single production processes also depend on the parameter $κ$ that appears in the gluon-vector LQ coupling. We adopt a search strategy of selecting events with at least one boosted hadronic top quark and exactly two high-$p_{\rm T}$ leptons of the same flavor and opposite sign. This combines events from the pair and single production processes and, therefore, can enhance the discovery potential beyond that of the pair-production-only searches. For $5σ$ discovery we find that vector LQs can be probed up to $2.55$ TeV for $100\%$ branching ratio in the $t\ell $ decay mode and $\mathcal{O}(1)$ new couplings at the $14$ TeV LHC with $3$ ab$^{-1}$ of integrated luminosity.
description: Follow-up paper of 1907.11194 [hep-ph]. Minor typos fixed. Matches with the journal version
Cymbionotum (Procoscinia) negrei Perrault 1994
Creators: name: Ball, George E.
name: Shpeley, Danny
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Carabidae
Cymbionotum
Cymbionotum negrei

description: Cymbionotum (Procoscinia) negrei Perrault 1994
(Fig. 15F, 16)
 Cymbionotum negrei Perrault 1994: 208. TYPE MATERIAL: three specimens, card­mounted (MNHP). HOLOTYPE male, labeled: "MUSEUM PARIS/ VENEZUELA / BAS SARARE / F. GEAY 33­96"; "Sous les écorce/ darbres" [handwritten]; " HOLOTYPE " [red paper]. PARATYPES, male and female. Male, labeled: " MUSEUM PARIS / VENEZUELA / HAUT APURE / F. GEAY 33­96"; " PARATYPE " [red paper]; Cymbionotum / negrei m. [handwritten]/ PARATYPE / G. G. Perrault det. [printed] 1992" [handwritten]. Female, "Venezuela, S. Fern. do Apure, L. Laglaize 1896"; " MUSEUM PARIS / ex. Coll./ R. Oberthur " [pale green paper]; " PARATYPE " [red paper]; " PARATYPE / Cymbionotum /negrei m. [handwritten]/ G. G. Perrault det. [printed] 1992" [handwritten].
 Type area. Venezuela: Bas Sarare.
 Recognition. Adults of this species are markedly similar to those of C. fernandezi, differing in absence of microlines from most of the dorsal surface, and by average smaller size, narrower vertex, narrower head in relation to pronotum, and narrower pronotal base (lower values for PWB/PWA, Table 12). The phalli of these two species are similar in form, but that of C. negrei (Fig. 15F) is narrower, with the preapical portion of the shaft bent more distinctly ventrad, and ventral surface generally pale (cf. Fig. 15B).
 Description. With recognition features as specified above, and in the subgeneric treatment; similar generally to C. fernandezi. Male genitalia with phallus as in Fig. 15F.
 Habitat. The holotype was collected from under bark of a (presumably fallen) tree. From the locality data, we infer that C. negrei is mesophilous, living in the rain forest vegetation zone (Table 17), at an altitude of less than 200 m. We do not believe that the species is subcortical, but that is a possibility.
 Geographical distribution (Fig. 16). This species is known only from two localities in the Apure River Basin of Venezuela.
 Relationships and chorological affinities. Based on shared morphological features, geographical proximity, and allopatric ranges, C. negrei is inferred to be the adelphotaxon of C. fernandezi, new species.
 Material examined. We have seen the type series, only. For details, see the synonymical section, above.
description: Published as part of Ball, George E. & Shpeley, Danny, 2005, Taxonomic review of the Tribe Melaenini (Coleoptera: Carabidae), with observations on morphological, ecological and chorological evolution, pp. 1-120 in Zootaxa 1099 (1) on pages 1-120, DOI: 10.11646/zootaxa.1099.1.1, http://zenodo.org/record/5051674
Cosmic acceleration from asymmetric branes
Creators: name: Padilla, Antonio
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider a single 3-brane sitting in between two different five dimensional spacetimes. On each side of the brane, the bulk is a solution to Gauss-Bonnet gravity, although the bare cosmological constant, funda mental Planck scale, and Gauss-Bonnet coupling can differ. This asymmetry leads to weighted junction conditions across the brane and interesting brane cosmology. We focus on two special cases: a generalized Randall-Sundrum model without any Gauss-Bonnet terms, and a stringy model, without any bare cosmological constants, and positive Gauss-Bonnet coupling. Even though we assume there is no vacuum energy on the brane, we find late time de Sitter cosmologies can occur. Remarkably, in certain parameter regions, this acceleration is preceded by a period of matter/radiation domination, with $H^2 \propto ρ$, all the way back to nucleosynthesis.
description: Version appearing in CQG
Can Non-Gaussian Cosmological Models Explain the WMAP's High Optical Depth for Reionization?
Creators: name: Chen, Xuelei
name: Cooray, Asantha
name: Yoshida, Naoki
name: Sugiyama, Naoshi
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The first-year Wilkinson Microwave Anisotropy Probe data suggest a high optical depth for Thomson scattering of 0.17 +/- 0.04, implying that the universe was reionized at an early epoch, z ~ 20. Such early reionization is likely to be caused by UV photons from first stars, but it appears that the observed high optical depth can be reconciled within the standard structure formation model only if star-formation in the early universe was extremely efficient. With normal star-formation efficiencies, cosmological models with non-Gaussian density fluctuations may circumvent this conflict as high density peaks collapse at an earlier epoch than in models with Gaussian fluctuations. We study cosmic reionization in non-Gaussian models and explore to what extent, within available constraints, non-Gaussianities affect the reionization history. For mild non-Gaussian fluctuations at redshifts of 30 to 50, the increase in optical depth remains at a level of a few percent and appears unlikely to aid significantly in explaining the measured high optical depth. On the other hand, within available observational constraints, increasing the non-Gaussian nature of density fluctuations can easily reproduce the optical depth and may remain viable in underlying models of non-Gaussianity with a scale-dependence.
description: 5 pages, 2 figures
Η κρίση ως καθημερινότητα στη σύγχρονη ελληνική κοινωνία: βιώματα και ερμηνείες
Creators: name: Γεωργιάδου, Ελένη Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Οικονομική Ανθρωπολογία
Οικονομική κρίση
Δυτικές συνοικίες Θεσσαλονίκης
Economic Anthropology
Financial crisis
Western districts of Thessaloniki

description: Η εργασία αυτή επικεντρώθηκε στις συνέπειες της οικονομικής κρίσης στην καθημερινή ζωή των χαμηλόμισθων, συνταξιούχων και άνεργων ανδρών και γυναικών με τους οποίους συναναστράφηκα στο πλαίσιο της επιτόπιας έρευνας που πραγματοποιήθηκε σε μια γειτονιά της δυτικής Θεσσαλονίκης και διήρκεσε συνολικά 17 μήνες. Η έρευνα επικεντρώθηκε στους τρόπους με τους οποίους οι άνθρωποι διαχειρίζονται τις αλλαγές που επέφερε η οικονομική κρίση στην καθημερινή τους ζωή. Ένα από τα ερωτήματα που με απασχόλησαν ειδικότερα αφορά τη διάκριση ανάμεσα σε αλλαγές της καθημερινότητας τις οποίες τα υποκείμενα φαίνονται διατεθειμένα να αποδεχτούν, και στη συνέχεια ενδεχομένως να προσπαθήσουν να διαχειριστούν, και άλλες στις οποίες αντιστέκονται και πάση θυσία προσπαθούν να αποφύγουν. Ιδιαίτερη βαρύτητα δόθηκε στις ενδοοικογενειακές σχέσεις, τον κατά φύλα καταμερισμό της οικιακής εργασίας και τη σχέση της οικογένειας με τον ευρύτερο κοινωνικό περίγυρο
description: This paper focused on the consequences of the economic crisis in the daily life of low-income, retired and unemployed men and women with whom I interacted in the context of a fieldwork that took place in a neighborhood of western districts of Thessaloniki and lasted a total 17 months. The research focused on the ways in which people manage the changes brought about by the economic crisis in their daily lives. One of the questions I was particularly interested in concerns the distinctions between changes in every life that subjects seem willing to accept, and then possibly try to manage, and others that they resist and try to avoid at all costs. Particular attention was paid to intra-familly relations, the gender division of domestic work and the relationship of the family with the wider social environment
Rapid Determination of Suitable Reinforcement Type in Continuous-Fibre-Reinforced Composites For Multiple Load Cases
Creators: name: Zimmerling, Clemens
name: Fengler, Benedikt
name: Wen, Haitao
name: Fan, Zeyu
name: Kärger, Luise
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2020
Subjects: Structural Optimisation
Multiple Load Cases
Fibre Reinforced Plastics
Anisotropic Material

description: With respect to their extraordinary weight-specific mechanical properties, continuous-fibre-reinforced plastics (CoFRP) have drawn increasing attention for use in load bearing structures. Significant effort has been carried out with respect to optimising CoFRP-components for maximum structural performance [1, 2]. Besides conventional optimisation techniques, e.g. topology or thickness optimisation, CoFRPs offer further potential for tailoring to lightweight requirements: Apart from choice of fibre and matrix material, the inherently anisotropic behaviour gives additional design freedom for engineering, e.g. fibre orientation and stacking sequence. Although offering high lightweight potential, determining a robust optimum with CoFRPs is a great challenge, especially, when multiple load cases need to be considered. This work proposes numerical analysis of principal stresses in multiple load cases to assess the lightweight potential when applying CoFRPs. Three common layups are considered: quasi-isotropic (QI) as well as bidirectional (BD) and unidirectional (UD) reinforcement. Principal stresses and their directions are obtained in Finite Element simulations. In extension of previous work [3,4], an algorithm is presented which methodologically determines the most suitable layup-type and orientation for each element across all considered load cases: Thereby, regions are identified, in which UD, BD or QI, respectively, are most favourable. Subsequently, each element per region is accordingly updated with new material properties, the simulations are rerun und the evaluation procedure repeated until convergence. The multi-load-case optimisation results are compared against separate optimisation of each individual load case and found to give meaningful results. The methodology is demonstrated using two generic geometries and one real-world load-bearing component. It is found to reliably allocate most beneficial reinforcement types with low computational effort compared to iterative parameter optimisation algorithms and is thus deemed to facilitate a lean part and process design under consideration of multiple load cases.
Broadband variability and correlation study of 3C 279 during flare of 2017-2018
Creators: name: Prince, Raj
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A multiwavelength temporal and spectral analysis of flares of 3C 279 during November 2017--July 2018 are presented in this work. Three bright gamma-ray flares were observed simultaneously in X-ray and Optical/UV along with a prolonged quiescent state. A "harder-when-brighter" trend is observed in both gamma-rays and X-rays during the flaring period. The gamma-ray light curve for all the flares are binned in one-day time bins and a day scale variability is observed. Variability time constrains the size and location of the emission region to 2.1$\times$10$^{16}$ cm and 4.4$\times$10$^{17}$ cm, respectively. The fractional variability reveals that the source is more than 100\% variable in gamma-rays and it decreases towards the lower energy. A cross-correlation study of the emission from different wavebands is done using the \textit{DCF} method, which shows a strong correlation between them without any time lags. The zero time lag between different wavebands suggest their co-spatial origin. This is the first time 3C 279 has shown a strong correlation between gamma-rays and X-rays emission with zero time lag. A single zone emission model was adopted to model the multiwavelength SEDs by using the publicly available code GAMERA. The study reveals that a higher jet power in electrons is required to explain the gamma-ray flux during the flaring state, as much as, ten times of that required for the quiescent state. However, more jet power in magnetic field has been observed during the quiescent state compared to the flaring state.
description: 13 pages, 10 figures, Accepted in ApJ
A quantum-geometrical description of the statistical laws of nature
Creators: name: da Cruz, Wellington
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the fractal characteristic of the quantum mechanical paths and we obtain for any universal class of fractons labeled by the Hausdorff dimension defined within the interval 1$ $$ < $$ $$h$$ $$
description: Typos corrected and references updated, latex 6 pages. A purtuguese version of this paper will be publish in Proceedings of the Tend\^encias da F\'{\i}sica Estat\'{\i}stica no Brasil: Escala e Complexidade, November, 25-27 (2002), Campos do Jord\~ao, S\~ao Paulo, Brazil. Simp\'osio em homenagem ao Prof. S\'{\i}lvio R. Salinas nos seus 60 anos. This is a short version of cond-mat/0212567
title: The effect of atmospheric turbulence on the performance of terrestrial digital optical line of sight communication systems.
Creators: name: Lilly, Christopher John
Publisher: name: The Open University
Year: 1987

description: This thesis considers the theory, application, and design principles of atmospheric optical line of sight communication systems and in particular the effect of atmospheric turbulence on the error rate performance of digital terrestrial systems is considered in some detail. In order to aid understanding of the physical processes involved, a qualitative model is presented which is followed by a quantitative analysis and model. These models utilise the atmospheric refractive index structure parameter which is shown to be a measure of atmospheric turbulence. A hypothesis is proposed which relates the atmospheric refractive index structure parameter to the error rate performance of terrestrial optical communication systems. Practical data obtained on a typical link as part of this research work is reported which shows that there is indeed a relationship between the atmospheric refractive index parameter and error rate performance as proposed in the hypothesis. The degree of correlation of the practical data with the theory is such that the hypothesis is readily validated. Techniques for alleviating the effects of atmospheric turbulence are also considered.
Aleyrodinae Westwood 1840
Creators: name: Martin, Jon H.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Aleyrodidae

description: Subfamily ALEYRODINAE Westwood, 1840: 435, 442–443  DIAGNOSIS. Puparia with lingula much smaller than in Aleurodicinae, with 2 setae (e.g. Figs 7, 11, 17, 29), with no discernible setae, or with lingula obscured by operculum (Figs 13–16, 18, 19); puparial legs without claws (e.g. Figs A, 22, 23, 31, 48); never with compound or agglomerate pores on puparial dorsum.
description: Published as part of Martin, Jon H., 2005, Whiteflies of Belize (Hemiptera: Aleyrodidae) Part 2 - a review of the subfamily Aleyrodinae Westwood, pp. 1-116 in Zootaxa 1098 (1) on page 7, DOI: 10.11646/zootaxa.1098.1.1, http://zenodo.org/record/5051548
One-loop Finiteness of Chiral Higher Spin Gravity
Creators: name: Skvortsov, Evgeny
name: Tran, Tung
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: One of the main ideas behind Higher Spin Gravities is that the higher spin symmetry is expected to leave no room for counterterms, thereby eliminating UV divergences that make the pure gravity non-renormalizable. However, until recently it has not been clear if such a mechanism is realized. We show that Chiral Higher Spin Gravity is one-loop finite, the crucial point being that all one-loop $S$-matrix elements are UV-convergent despite the fact that the theory is naively not renormalizable by power counting. For any number of legs the one-loop $S$-matrix elements coincide with all-plus helicity one-loop amplitudes in pure QCD and SDYM, modulo a certain higher spin dressing, which is an unusual relation between the non-gravitational theories and a higher spin gravity.
description: 20 pages, comments added, some typos fixed, close to the published version
An Effective Search Method for Gravitational Ringing of Black Holes
Creators: name: Nakano, Hiroyuki
name: Takahashi, Hirotaka
name: Tagoshi, Hideyuki
name: Sasaki, Misao
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We develop a search method for gravitational ringing of black holes. The gravitational ringing is due to complex frequency modes called the quasi-normal modes that are excited when a black hole geometry is perturbed. The detection of it will be a direct confirmation of the existence of a black hole. Assuming that the ringdown waves are dominated by the fundamental mode with least imaginary part, we consider matched filtering and develop an optimal method to search for the ringdown waves that have damped sinusoidal wave forms. When we use the matched filtering method, the data analysis with a lot of templates required. Here we have to ensure a proper match between the filter as a template and the real wave. It is necessary to keep the detection efficiency as high as possible under limited computational costs. First, we consider the white noise case for which the matched filtering can be studied analytically. We construct an efficient method for tiling the template space. Then, using a fitting curve of the TAMA300 DT6 noise spectrum, we numerically consider the case of colored noise. We find our tiling method developed for the white noise case is still valid even if the noise is colored.
description: 17 pages, 9 figures. Accepted to Phys. Rev. D, Note correction to Eq. (3-25), A few comments added and minor typos corrected
Επεξεργασία αντλητικών δεδομένων και χωρική κατανομή των υδραυλικών παραμέτρων στον υδροφορέα της πεδιάδας της Θεσσαλονίκης
Creators: name: Γρηγοριάδου, Γεωργία Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Υδρογεωλογία
Θεσσαλονίκη
Επεξεργασία αντλητικών δεδομένων
Ydrogeology
Thessaloniki
Processing pumping data

description: Σκοπός της μεταπτυχιακής διπλωματικής εργασίας είναι ο υπολογισμός υδραυλικών παραμέτρων των υπόγειων υδροφορέων από δεδομένα δοκιμαστικών αντλήσεων, η χωρική κατανομή τους σε θεματικούς χάρτες, καθώς και η εξαγωγή συμπερασμάτων για τη συμπεριφορά των υδροφορέων. Για το σκοπό αυτόν επιλέχθηκε η περιοχή της πεδιάδας της Θεσσαλονίκης και με βάση τα στοιχεία 15 γεωτρήσεων ύδρευσης, τα οποία παραχωρήθηκαν από την Ε.Υ.Α.Θ. έγινε εφαρμογή των μεθόδων Theis, Jacob και επαναφοράς στάθμης. Για τον υπολογισμό των υδραυλικών παραμέτρων χρησιμοποιήθηκε ο μέσος όρος των αποτελεσμάτων από κάθε μέθοδο. Στη συνέχεια με χρήση του προγράμματος ArcGis, έγινε ψηφιοποίηση του αντίστοιχου υδρογεωλογικού χάρτη της περιοχής και η απεικόνιση των τιμών των υδραυλικών παραμέτρων από κάθε γεώτρηση.Τέλος, αναλύονται τα αποτελέσματα ξεχωριστά για κάθε γεώτρηση στην περιοχή μελέτης λαμβάνοντας υπόψη και το υδρογεωλογικό περιβάλλον. Γενικά μεγάλες τιμές μεταβιβαστικότητας εμφανίζονται σε περιοχές όπου αναπτύσσονται υδροφόρα στρώματα μεγάλου πάχους σε αδρόκοκκα υλικά. Οσον αφορά στον συντελεστή αποθηκευτικότητας, οι μεγαλύτερες τιμές (μεταξύ 1-30%) και συνδέονται με ελεύθερους υδροφορείς, ενώ οι μικρότερες τιμές (<0,5%) συνδέονται με υποπίεση υπόγειους υδροφορείς
description: This MSc thesis aims to estimate the hydraulic parameters of aquifers from pumping test data, to depict their spatial distribution using digitized maps, as well as to interpret the aquifer storage based on the calculated data. For this purpose, the valley of Thessaloniki was selected, and based on data from 15 water boreholes provided by EYATH, the methods Theis, Jacob, and recovery tests were applied. In order to calculate the hydraulic parameters the mean results of each method were used. Subsequently, using the ArcGis program, the corresponding hydrogeological map of the area was digitized and the values per drill were displayed. Finally, the results are analyzed separately for each drill in the study area, taking into account the hydrogeological environment. In general, high transitional levels appear in regions were thick aquifer layers in coarse formations are present. As for the storage coefficient, the highest values (between 1-30%) associate with unconfined aquifers, while low values (< 0,5%) with confined aquifers
title: The ecology of invertebrate fauna of Manx streams in relation to pollution from disused mines
Creators: name: Williams, Alan Owen
Publisher: name: The Open University
Year: 1982

description: This investigation was carried out to inquire into the differences in the invertebrate fauna of two closely related streams in the Isle of Man. The Gleneedle stream is a clean mountain stream which drains the western slopes of Gleneedle. The Glendhoo stream drains the eastern sides of Gleneedle and collects runoff water from disused mine workings, it is slightly polluted by the presence of lead (mean annual concentration 0.26 mgl-1) and zinc (mean annual concentration 0.108 mgl-1). The two streams combine and the sampling areas are about 400 metres apart at an altitude of approximately 150m. The major components of the invertebrate fauna were determined for each stream, and observations of population changes recorded for a period of two years, from February, 1978, to January, 1980. Variations in the ionic concentration of lead and zinc, together with other chemical and physical parameters were also recorded. Laboratory experiments were carried out to determine the hatching success of eggs of the mayfly Baetis rhodani and of the trichopterans Hydropsyche instabilis, Rhyscophila dorsalis, Polycentrppus flavomaculatus and Potamophylax latipennis, incubated in water from the Gleneedle stream as a control, in water from the Glendhoo stream and in water to which had been added salts of lead and zinc. Observations were also made in the laboratory of the effect of rearing larvae of Potamophylax latipennis, Polycentropus flavomaculatus, nymphs of Baetis rhodani and the plecopteran Protonemura meyeri in conditions similar to those of the hatching experiments. Attempts to reproduce these experiments in the field did not succeed. The results suggest that small amounts of lead and zinc of the order of 0.15 mgl-1 act synergistically to prevent the hatching of aquatic insect eggs; whilst these amounts are not fatal during larval instar stages they appear to be lethal during metamorphosis. Protonemura meyeri and Baetis rhodani were unable to moult successfully and failed to survive. The trichopteran larvae Polycentropus flavomaculatus and Potamophylax latippnnis were resistant to lead and zinc and survived successfully in this stage. The rate of pupal emergence was low for Potamophylax latipennis, and those teneral adults which did emerge had underdeveloped wings and were incapable of flight. The existence of lead and zinc in the Glendhoo waters exerts a controlling influence on the ecology of the stream, colonization by insect larvae is prevented due to the eggs failing to hatch. The presence of P. latipennis larvae in the Glendhoo stream may be explained by the ovipositing behaviour of the imagines, eggs hatch on vegetation overhanging the water. The larvae of this species are therefore able to inhabit the stream but development is inhibited during pupation.
Gaussian Null Coordinates for Rotating Charged Black Holes and Conserved Charges
Creators: name: Cvetic, M.
name: Pope, C. N.
name: Saha, A.
name: Satz, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Motivated by the study of conserved Aretakis charges for a scalar field on the horizon of an extremal black hole, we construct the metrics for certain classes of four-dimensional and five-dimensional extremal rotating black holes in Gaussian null coordinates. We obtain these as expansions in powers of the radial coordinate, up to sufficient order to be able to compute the Aretakis charges. The metrics we consider are for 4-charge black holes in four-dimensional STU supergravity (including the Kerr-Newman black hole in the equal-charge case) and the general 3-charge black holes in five-dimensional STU supergravity. We also investigate the circumstances under which the Aretakis charges of an extremal black hole can be mapped by conformal inversion of the metric into Newman-Penrose charges at null infinity. We show that while this works for four-dimensional static black holes, a simple radial inversion fails in rotating cases because a necessary conformal symmetry of the massless scalar equation breaks down. We also discuss that a massless scalar field in dimensions higher than four does not have any conserved Newman-Penrose charge, even in a static asymptotically flat spacetime.
description: 22 pages
Lattice measurement of the Isgur-Wise functions tau_1/2 and tau_3/2
Creators: name: Becirevic, D.
name: Blossier, B.
name: Boucaud, Ph.
name: Herdoiza, G.
name: Leroy, J. P.
name: Yaouanc, A. Le
name: Morenas, V.
name: Pene, O.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a method to compute the Isgur-Wise form factors tau_1/2(1) and tau_3/2(1) for the decay of B mesons into orbitally excited (P wave) D** charmed mesons on the lattice in the static limit. We also present the result of an exploratory numerical simulation which shows that the signal/noise ratio allows for a more dedicated computation. We find tau_1/2(1)=0.38(5) and tau_3/2(1)= 0.53(8), with yet unknown systematic errors. These preliminary numbers agree fairly well with theoretical expectation.
description: LaTeX, 13 pages, 3 eps figures
Additional file 1 of How shoulder immobilization influences daily physical activity â€“ an accelerometer based preliminary study
Creators: name: Rickert, Carolin
name: Grabowski, Monika
name: Gosheger, Georg
name: Schorn, Dominik
name: Schneider, Kristian Nikolaus
name: Klingebiel, Sebastian
name: Liem, Dennis
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology

description: Additional file 1. Questionnaire for the assessment of subjective daily activity.
Are exoplanetesimals differentiated?
Creators: name: Bonsor, Amy
name: Carter, Philip J.
name: Hollands, Mark
name: Gaensicke, Boris T.
name: Leinhardt, Zoe
name: Harrison, John H. D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Metals observed in the atmospheres of white dwarfs suggest that many have recently accreted planetary bodies. In some cases, the compositions observed suggest the accretion of material dominantly from the core (or the mantle) of a differentiated planetary body. Collisions between differentiated exoplanetesimals produce such fragments. In this work, we take advantage of the large numbers of white dwarfs where at least one siderophile (core-loving) and one lithophile (rock-loving) species have been detected to assess how commonly exoplanetesimals differentiate. We utilise N-body simulations that track the fate of core and mantle material during the collisional evolution of planetary systems to show that most remnants of differentiated planetesimals retain core fractions similar to their parents, whilst some are extremely core-rich or mantle-rich. Comparison with the white dwarf data for calcium and iron indicates that the data are consistent with a model in which $66^{+4}_{-6}\%$ have accreted the remnants of differentiated planetesimals, whilst $31^{+5}_{-5}\%$ have Ca/Fe abundances altered by the effects of heating (although the former can be as high as $100\%$, if heating is ignored). These conclusions assume pollution by a single body and that collisional evolution retains similar features across diverse planetary systems. These results imply that both collisions and differentiation are key processes in exoplanetary systems. We highlight the need for a larger sample of polluted white dwarfs with precisely determined metal abundances to better understand the process of differentiation in exoplanetary systems.
description: 18 pages, MNRAS, accepted
The social context of depression : How NPs can better address women's healthcare needs
Creators: name: Keddie, Heather
Publisher: name: The University of British Columbia
Year: 2017

description: Women with social disadvantage often experience the most severe effects of depression and rely heavily on primary care for depression management. NPs, within the primary care sector, must know how to diagnose and treat depression and also recognize the root causes of depression that are influenced by social factors including disparities in the social determinants of health, adverse childhood events, and the experience of trauma and violence. Challenges to current depression management have significant economic and social costs to women, families, communities, and the health care system. Through the implementation of collaborative care practices, using trauma- and violence-informed principles to support and empower women, NPs are well positioned to be leaders in the management of depression care. As advocates at the clinical, community, and policy levels, NPs can address the root causes of depression, mitigating the long-term consequences related frequently to the experience of social inequities, trauma, and violence. Keywords: Depression, Women, Social Disadvantage, Trauma and Violence, Collaborative Care, Nurse Practitioners
Additional file 2 of How shoulder immobilization influences daily physical activity â€“ an accelerometer based preliminary study
Creators: name: Rickert, Carolin
name: Grabowski, Monika
name: Gosheger, Georg
name: Schorn, Dominik
name: Schneider, Kristian Nikolaus
name: Klingebiel, Sebastian
name: Liem, Dennis
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology

description: Additional file 2. Questionnaire for the subjective assessment of restriction by the shoulder orthosis and daily activity.
AC-Calorimetry at High Pressure and Low Temperature
Creators: name: Wilhelm, Heribert
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent developments of the AC-calorimetric technique adapted for the needs of high pressure experiments are discussed. A semi-quantitative measurement of the specific heat with a Bridgman-type of pressure cell as well as a diamond anvil cell is possible in the temperature range 0.1 K < T < 10 K. The pressure transmitting medium used to ensure good pressure conditions determines to a great extent via its thermal conductivity the operating frequency and thus the accessible temperature range. Investigations with different pressure transmitting media for T > 1.5 K reveal for solid He a cut-off frequency which is considerably higher than for steatite. Experiments below 1 K and pressures above 10 GPa clearly show that the pressure dependence of the linear temperature coefficient of the specific heat can be measured. It is in qualitative agreement to a related quantity obtained quasi-simultaneously by electrical resistivity measurements on the same sample.
description: 14 pages, 7 figures. The manuscript with high resoultion figures (pdf-file, about 1Mb) can be downloaded from http://www.cpfs.mpg.de/~wilhelm/
The Wonderful World of Privileges
Creators: name: Paulus, Christoph G.
Publisher: name: Humboldt-Universität zu Berlin
Year: 2015
Subjects: subject: 340 Recht

description: Speaking about privileges arouses sentiments which are not necessarily without ambivalence. Even though the primary connotation might be positive, a closer look reveals that there are also downsides. That, here too, the coin consists of two sides is most prominently evidenced by the well known term ‘privilegium odiosum’ which indicates that the one’s elevation is (or might be) the other’s anger. The primary example is the gracious royal permission to the medieval Jewish bankers to demand interests from Christians. Those bankers (and their fellow Jews in general) had thoroughly to suffer from this privilege. Yet, irrespective of this closely intertwined ambivalence, privileges are throughout history and roughly all over the globe objects of desire – after all, they grant a special status be it socially, be it economically or however else. The combination of these two sides is likely to be the real reason why, generally speaking, privileges are rarely addressed openly, at least not by those who are benefitting from them; they normally try to justify their elevated status as something necessitated by some superior order or to disguise it as something actually normal or to hide it throughout.
Boundary states, overlaps, nesting and bootstrapping AdS/dCFT
Creators: name: Gombor, Tamas
name: Bajnok, Zoltan
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Integrable boundary states can be built up from pair annihilation amplitudes called $K$-matrices. These amplitudes are related to mirror reflections and they both satisfy Yang Baxter equations, which can be twisted or untwisted. We relate these two notions to each other and show how they are fixed by the unbroken symmetries, which, together with the full symmetry, must form symmetric pairs. We show that the twisted nature of the $K$-matrix implies specific selection rules for the overlaps. If the Bethe roots of the same type are paired the overlap is called chiral, otherwise it is achiral and they correspond to untwisted and twisted $K$-matrices, respectively. We use these findings to develop a nesting procedure for $K$-matrices, which provides the factorizing overlaps for higher rank algebras automatically. We apply these methods for the calculation of the simplest asymptotic all-loop 1-point functions in AdS/dCFT. In doing so we classify the solutions of the YBE for the $K$-matrices with centrally extended $\mathfrak{su}(2|2)_{c}$ symmetry and calculate the generic overlaps in terms of Bethe roots and ratio of Gaudin determinants.
description: minor corrections
Aleurocanthus woglumi Ashby 1915
Creators: name: Martin, Jon H.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Aleyrodidae
Aleurocanthus
Aleurocanthus woglumi

description: Aleurocanthus woglumi Ashby
(Figs 39–40, 82)
 Aleurocanthus woglumi Ashby, 1915: 321–322. Lectotype, Jamaica (designated by Martin, 1999: 31).
DISTRIBUTION. Widely distributed in most warmer parts of the world.
 COMMENTS. A. woglumi is often known as the citrus blackfly because of the black puparia, combined with the dark bodies and dusky wings of the adults. Although this species was described from Jamaica, it is almost certain that A. woglumi is a native of the Oriental or Austro­oriental Region, and it is currently the only member of this important genus known in Central America.
description: Published as part of Martin, Jon H., 2005, Whiteflies of Belize (Hemiptera: Aleyrodidae) Part 2 - a review of the subfamily Aleyrodinae Westwood, pp. 1-116 in Zootaxa 1098 (1) on page 8, DOI: 10.11646/zootaxa.1098.1.1, http://zenodo.org/record/5051548
The effect of tinnitus on hearing-related quality of life outcomes in adult cochlear implant recipients
Creators: name: Elmien Opperman
name: Talita Le Roux
name: Masenge, Andries
name: Eikelboom, Robert H.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: To describe the effect of tinnitus distress on the hearing-related quality of life (QoL) outcomes over time in adult cochlear implant (CI) recipients. A retrospective, longitudinal study of adult CI recipients was conducted. Hearing-related QoL and tinnitus distress were assessed using the Abbreviated Profile of Hearing Aid Benefit (APHAB) and the Tinnitus Reaction Questionnaire (TRQ) preoperatively and at 6-months, 12-months and >24-month postoperatively. The association between tinnitus distress and hearing-related QoL outcomes over time was investigated. Furthermore, 13 potential predictive factors were identified from the retrospective dataset. Multiple regression analyses were performed to identify variables that influence hearing-related QoL outcomes over time. The study sample included 210 adult (≥18 years) CI recipients implanted between 2001 and 2017. Lower tinnitus distress and younger age at implantation were significant predictors of better hearing-related QoL in adult CI recipients. A significant reduction in tinnitus distress up to two years post-implantation was found, as well as greater tinnitus distress correlating with poorer hearing-related QoL outcomes. Tinnitus distress negatively affects the hearing-related QoL outcomes of adult CI recipients. Tinnitus distress and age at implantation were found to be significant predictors of hearing-related QoL when controlling for other predictive factors.
Glueball enhancements in p(gamma,VV)p through vector meson dominance
Creators: name: Cotanch, Stephen R.
name: Williams, Robert A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Double vector meson photoproduction, p(gamma, G -> VV)p, mediated by a scalar glueball G is investigated. Using vector meson dominance (VMD) and Regge/pomeron phenomenology, a measureable glueball enhancement is predicted in the invariant VV = rho rho and omega omega mass spectra. The scalar glueball is assumed to be the lightest physical state on the daughter pomeron trajectory governing diffractive vector meson photoproduction. In addition to cross sections, calculations for hadronic and electromagnetic glueball decays, G -> V V' (V,V'= rho, omega, phi, gamma), and gamma_v V -> G transition form factors are presented based upon flavor universality, VMD and phenomenological couplings from phi photoproduction analyses. The predicted glueball decay widths are similar to an independent theoretical study. A novel signature for glueball detection is also discussed.
Regularized calculation of the retarded Green function in Schwarzschild spacetime
Creators: name: Casals, Marc
name: Nolan, Brien C.
name: Ottewill, Adrian C.
name: Wardell, Barry
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The retarded Green function for linear field perturbations of black hole spacetimes is notoriously difficult to calculate. One of the difficulties is due to a Dirac-$δ$ divergence that the Green function possesses when the two spacetime points are connected by a "direct" null geodesic. We present a procedure which notably aids its calculation in the case of Schwarzschild spacetime by separating this direct $δ$-divergence from the remainder of the retarded Green function. More precisely, the method consists of calculating the multipolar $\ell$-modes of the direct $δ$-divergence and subtracting them from the corresponding modes of the retarded Green function. We illustrate the usefulness of the method with some specific calculations in the case of the scalar Green function and self-field for a point scalar charge in Schwarzschild spacetime.
description: 13 pages, 4 figures; 2 Mathematica notebooks as ancillary files