cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Efficient and reliable method for the simulation of scanning tunneling images and spectra with local basis sets
Creators: name: Paz, Oscar
name: Soler, Jose M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Based on Bardeen's perturbative approach to tunneling, we have found an expression for the current between tip and sample, which can be efficiently coded in order to perform fast ab initio simulations of STM images. Under the observation that the potential between the electrodes should be nearly flat at typical tunnel gaps, we have addressed the difficulty in the computation of the tunneling matrix elements by considering a vacuum region of constant potential delimited by two surfaces (each of them close to tip and sample respectively), then propagating tip and sample wave functions by means of the vacuum Green's function, to finally obtain a closed form in terms of convolutions. The current is then computed for every tip-sample relative position and for every bias voltage in one shot. The electronic structure of tip and sample is calculated at the same footing, within density functional theory, and independently. This allows us to carry out multiple simulations for a given surface with a database of different tips. We have applied this method to the Si(111)-(7x7) and Ge(111)-c(2x8) surfaces. Topographies and spectroscopic data, showing a very good agreement with experiments, are presented.
description: 10 pages, 11 figures
Stochastic resonance due to internal noise in reaction kinetics
Creators: name: Escudero, Carlos
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We study a reaction model that presents stochastic resonance purely due to internal noise. This means that the only source of fluctuations comes from the discrete character of the reactants, and no more noises enter into the system. Our analysis reveals that the phenomenon is highly complex, and that is generated by the interplay of different stochasticity at the three fixed points of a bistable system.
A Perspective on Collective Properties of Atoms on 2D Materials
Creators: name: Del Maestro, Adrian
name: Wexler, Carlos
name: Vanegas, Juan M.
name: Lakoba, Taras
name: Kotov, Valeri N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Atoms deposited on two-dimensional (2D) electronic materials, such as graphene, can exhibit unconventional many-body correlations, not accessible in other settings. All of these are driven by van der Waals forces: between the atoms themselves and atom-material interactions. For example $^4$He atoms on 2D materials can potentially form a variety of exotic quantum states of matter, such as two-dimensional supersolids and superfluids, in addition to solid phases. For the "most quantum" case of a single helium layer we discuss, from a theoretical perspective, how the effective low-energy (Bose-Hubbard) description can take advantage of the extreme sensitivity of this unique system to the interplay between the atomic (helium) and solid-state (graphene) components. Due to the extraordinary variety and tunability of 2D electronic materials, we envisage that a wide range of correlated atomic phases can be realized under favorable conditions. We also outline exciting possibilities in the opposite extreme of many atomic layers forming a liquid on top of graphene -- in this case a so-called "spinodal de-wetting" pattern can form at the liquid-vapor interface which reflects the presence and electronic properties of graphene underneath. Such patterns could be manipulated by choosing different atoms and materials, with potential technological applications.
description: 10 pages, 9 figures
Maximum Likelihood Estimation of Drift and Diffusion Functions
Creators: name: Kleinhans, D.
name: Friedrich, R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: The maximum likelihood approach is adapted to the problem of estimation of drift and diffusion functions of stochastic processes from measured time series. We reconcile a previously devised iterative procedure [Kleinhans et al., Physics Letters A (346), 2005] and put the application of the method on a firm theoretical basis.
description: 5 pages, 2 figures
Large Eddy Simulation of Premixed Combustion with a Thickened Flame Approach
Creators: name: De, Ashoke
name: Acharya, Sumanta
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A Thickened Flame (TF) modeling approach is combined with a Large Eddy Simulation (LES) methodology to model premixed combustion and the accuracy of these model predictions is evaluated by comparing with the piloted premixed stoichiometric methane-air flame data of Chen et al. [Combust. Flame 107 (1996) 233-244] at a Reynolds number Re = 24,000. In the TF model, the flame front is artificially thickened to resolve it on the computational LES grid and the reaction rates are specified using reduced chemistry. The response of the thickened flame to turbulence is taken care of by incorporating an efficiency function in the governing equations. The efficiency function depends on the characteristics of the local turbulence and on the characteristics of the premixed flame such as laminar flame speed and thickness. Three variants of the TF model are examined: the original Thickened Flame model, the Power-law flame wrinkling model, and the dynamically modified TF model. Reasonable agreement is found when comparing predictions with the experimental data and with computations reported using a probability distribution function (PDF) modeling approach. The results of the TF model are in better agreement with data when compared with the predictions of the G-equation approach
description: arXiv admin note: substantial text overlap with arXiv:2101.09200; text overlap with arXiv:2102.05183, arXiv:2102.04855
Additional file 9 of Long-term live imaging and multiscale analysis identify heterogeneity and core principles of epithelial organoid morphogenesis
Creators: name: Hof, Lotta
name: Moreth, Till
name: Koch, Michael
name: Liebisch, Tim
name: Kurtz, Marina
name: Tarnick, Julia
name: Lissek, Susanna M.
name: Verstegen, Monique M. A.
name: Laan, Luc J. W. Van Der
name: Meritxell Huch
name: Matthäus, Franziska
name: Stelzer, Ernst H. K.
name: Pampaloni, Francesco
Publisher: name: figshare
Year: 2021
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Additional file 9: Fig. S8. Time-resolved, representative images of the growth and heterogeneity in mPOs. Illustrated are single organoids extracted from three different cultures showing rotation, size oscillation, luminal dynamics, fusion and different cell nucleus sizes. In addition, cell division events at a late stage (day 4, 5, 6) and the formation of differently sized organoid fragments are shown. Besides the luminal dynamics, which are imaged by the use of a bright field microscope, all behaviour patterns and appearances were observed from organoids expressing the nuclei marker Rosa26-nTnG (grey) and grown within the Z.1-FEP-cuvette inside the Z.1 Lightsheet microscope. The red rectangles indicate the corresponding close-up, the red arrows indicate the position within the organoid where the event occurs, the curved arrow indicate the direction of rotation and the red circle indicates the volume change during a size oscillation event. Microscope fluorescence images: Zeiss Lightsheet Z.1; Plan S 1.0x FWD 81 mm, detection: W Plan-Apochromat 20x/1.0, illumination: Zeiss LSFM 10x/0.2; laser lines: 561 nm; filters: laser block filter (LBF) 405/488/561; voxel size: 1.02 × 1.02 × 2.00 μm3; recording interval: 30 min; Microscope bright field images: Zeiss Axio Observer Z.1; objective lenses: Plan-Apochromat 5x/0.16, voxel size: 1.26 × 1.26 × 4 μm3, avg. z-projection.
THE PLACE AND SIGNIFICANCE OF NEW ADJECTIVES IN THE LEXICON OF THE UZBEK AND KHRAKALPAK LANGUAGES
Creators: name: Abdullaev Okhunjon. Teacher of Karakalpak State University.
Publisher: name: Zenodo
Year: 2023

description: This article is devoted to the role and importance of new words in the Uzbek and Karakalpak languages. Examples of new borrowed words are given, comments are made about their impact on the vocabulary and recommendations are given.

Key words:lexeme, borrowed word, term, neologism, dictionary, own layer.
Additional file 6 of Long-term live imaging and multiscale analysis identify heterogeneity and core principles of epithelial organoid morphogenesis
Creators: name: Hof, Lotta
name: Moreth, Till
name: Koch, Michael
name: Liebisch, Tim
name: Kurtz, Marina
name: Tarnick, Julia
name: Lissek, Susanna M.
name: Verstegen, Monique M. A.
name: Laan, Luc J. W. Van Der
name: Meritxell Huch
name: Matthäus, Franziska
name: Stelzer, Ernst H. K.
name: Pampaloni, Francesco
Publisher: name: figshare
Year: 2021
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Additional file 6: Fig. S5. Overview of entire hCCAO cultures within one Z1-FEP-cuvette and observation of isolated single-cell dynamics. hCCAOs expressed the nuclei marker H2B-eGFP (magenta) and the F-actin cytoskeletal marker LifeAct-mCherry (green). (a) Maximum intensity z-projection of the entire field of view in the Lightsheet Z1 microscope. One cuvette (i) with low organoid density and one cuvette (ii) with high organoid density are displayed. We counted about 120 organoids in the cuvette (ii) with high organoid density. Organoids show different sizes and isolated cell nuclei are visible in the interspaces. Scale bar: 250 μm. (b) Excerpts of the maximum intensity z-projections shown in (a). Isolated single organoid cells show signs of polarisation and undergo cell division. Scale bars: Cell division, Polarisation - 10 μm, Formation – 20 μm. Microscope: Zeiss Lightsheet Z.1; objective lenses: detection: W Plan-Apochromat 20x/1.0, illumination: Zeiss LSFM 10x/0.2; laser lines: 488 nm, 561 nm; filters: laser block filter (LBF) 405/488/561; voxel size: 1.02 × 1.02 × 2.00 μm3; recording interval: 30 min.
Sensitivity analysis of utility-based prices and risk-tolerance wealth processes
Creators: name: Kramkov, Dmitry
name: S\^{ı}rbu, Mihai
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: Computational Finance (q-fin.CP)
subject: FOS: Mathematics
subject: FOS: Economics and business
subject: 90A09, 90A10 (Primary) 90C26 (Secondary)

description: In the general framework of a semimartingale financial model and a utility function $U$ defined on the positive real line, we compute the first-order expansion of marginal utility-based prices with respect to a ``small'' number of random endowments. We show that this linear approximation has some important qualitative properties if and only if there is a risk-tolerance wealth process. In particular, they hold true in the following polar cases: \begin{tabular}@p97mm@ for any utility function $U$, if and only if the set of state price densities has a greatest element from the point of view of second-order stochastic dominance;for any financial model, if and only if $U$ is a power utility function ($U$ is an exponential utility function if it is defined on the whole real line). \end{tabular}
description: Published at http://dx.doi.org/10.1214/105051606000000529 in the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Uniform Periodic Point Growth in Entropy Rank One
Creators: name: Miles, Richard
name: Ward, Thomas
Publisher: name: arXiv
Year: 2006
Subjects: subject: Dynamical Systems (math.DS)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 22D40; 37A15; 37A35

description: We show that algebraic dynamical systems with entropy rank one have uniformly exponentially many periodic points in all directions.
Additional file 9 of Plastid phylogenomic insights into relationships of all flowering plant families
Creators: name: Li, Hong-Tao
name: Luo, Yang
name: Gan, Lu
name: Ma, Peng-Fei
name: Gao, Lian-Ming
name: Yang, Jun-Bo
name: Cai, Jie
name: Gitzendanner, Matthew A.
name: Fritsch, Peter W.
name: Zhang, Ting
name: Jin, Jian-Jun
name: Zeng, Chun-Xia
name: Wang, Hong
name: Yu, Wen-Bin
name: Zhang, Rong
name: van der Bank, Michelle
name: Olmstead, Richard G.
name: Hollingsworth, Peter M.
name: Chase, Mark W.
name: Soltis, Douglas E.
name: Soltis, Pamela S.
name: Yi, Ting-Shuang
name: Li, De-Zhu
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 9: Figure S8. Phylogenetic tree of 4792 plastomes with successive removal of the long branch forming a sister relationship with a ‘clade’ of Mitrastemonaceae, Thismiaceae, Apodanthaceae, and Balanophoraceae.
A cyclic universe with colour fields
Creators: name: Yershov, V. N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: The topology of the universe is discussed in relation to the singularity problem. We explore the possibility that the initial state of the universe might have had a structure with 3-Klein bottle topology, which would lead to a model of a nonsingular oscillating (cyclic) universe with a well-defined boundary condition. The same topology is assumed to be intrinsic to the nature of the hypothetical primitive constituents of matter (usually called preons) giving rise to the observed variety of elementary particles. Some phenomenological implications of this approach are also discussed.
description: 21 pages, 9 figures; v.4: final version
A FRB in a Globular Cluster: Why Is This Neutron Star Different From (Almost) All Other Neutron Stars?
Creators: name: Katz, J. I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Most Fast Radio Burst (FRB) models are built from comparatively common astronomical objects: neutron stars, black holes and supernova remnants. Yet FRB sources are rare, and most of these objects, found in the Galaxy, do not make FRB. Special and rare circumstances may be required for these common objects to be sources of FRB. The recent discovery of a repeating FRB in a globular cluster belonging to the galaxy M81 suggests a model involving a neutron star and a close binary companion, likely a white dwarf; both neutron stars and close binaries are superabundant in globular clusters. Magnetic interaction is a plausible, though unproven, mechanism of acceleration of relativistic particles that may radiate coherently as FRB. Double neutron star binaries cannot be the observed long-lived repeating FRB sources, but might make much shorter lived sources, and perhaps non-repeating FRB.
description: 6 pp References added
Additional file 8 of Long-term live imaging and multiscale analysis identify heterogeneity and core principles of epithelial organoid morphogenesis
Creators: name: Hof, Lotta
name: Moreth, Till
name: Koch, Michael
name: Liebisch, Tim
name: Kurtz, Marina
name: Tarnick, Julia
name: Lissek, Susanna M.
name: Verstegen, Monique M. A.
name: Laan, Luc J. W. Van Der
name: Meritxell Huch
name: Matthäus, Franziska
name: Stelzer, Ernst H. K.
name: Pampaloni, Francesco
Publisher: name: figshare
Year: 2021
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Additional file 8: Fig. S7. Dynamic processes observed in organoid morphogenesis. hCCAOs expressed the nuclei marker H2B-eGFP (magenta) and the F-actin cytoskeletal marker LifeAct-mCherry (green) and were cultured in Z1-FEP-cuvettes for long-term live observation. The figure shows excerpts of maximum intensity z-projections. Manual tracking of cell nuclei was performed using the Manual Tracking plugin in Fiji. Microscope: Zeiss Lightsheet Z.1; objective lenses: detection: W Plan-Apochromat 20x/1.0, illumination: Zeiss LSFM 10x/0.2; laser lines: 488 nm, 561 nm; filters: laser block filter (LBF) 405/488/561; voxel size: 1.02 × 1.02 × 2.00 μm3; recording interval: 30 min; scale bars: 50 μm, 25 μm (inset).
The Message of the Quantum?
Creators: name: Daumer, Martin
name: Duerr, Detlef
name: Goldstein, Sheldon
name: Maudlin, Tim
name: Tumulka, Roderich
name: Zanghi, Nino
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We criticize speculations to the effect that quantum mechanics is fundamentally about information. We do this by pointing out how unfounded such speculations in fact are. Our analysis focuses on the dubious claims of this kind recently made by Anton Zeilinger.
description: 4 pages, no figures
A search for molecular gas in restarting radio galaxies
Creators: name: Saripalli, Lakshmi
name: Mack, Karl-Heinz
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Several radio galaxies are known that show radio morphological signatures that are best interpreted as restarting of nuclear activity after a period of quiescence. The conditions surrounding the phenomenon of nuclear recurrence are not understood. In this paper we have attempted to address this question by examining the nuclear fuelling characteristics in a sample of restarting radio galaxies. We have examined the detection rate for molecular gas in a representative sample of nine restarting radio galaxies, for seven of which we present new upper limits to the molecular gas mass derived from CO line observations we made with the IRAM 30-m telescope. We derive a low CO detection rate for the relatively young restarted radio galaxies suggesting that the cessation of the nuclear activity and its subsequent restarting may be a result of instabilities in the fuelling process rather than a case of depletion of fuel followed by a recent fuel acquisition. It appears that abundant molecular gas content at the level of few 10^8 to 10^9 solar masses does not necessarily accompany the nuclear restarting phenomenon. For comparison we also discuss the molecular gas properties of five normal giant radio galaxies, three of which we observed using SEST. Despite obvious signs of interactions and nuclear dust disks none of them has been found to host significant quantities of molecular gas.
description: 7 pages, 1 figure, 3 tables, accepted by Monthly Notices of the Royal Astronomical Society Main Journal
Θεωρία του Νου σε ενήλικες με Χρόνια Νεφρική Ανεπάρκεια
Creators: name: Μπρέτσα, Χριστίνα Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Χρόνια Νεφρική Νόσος
Αιμοκάθαρση
Θεωρία Του Νου
Chronic Kidney Disease
Hemodialysis
Theory of Mind

description: Η Θεωρία του Νου (ΘτΝ) αποτελεί διάσταση της κοινωνικής νόησης, απαραίτητη για τις κοινωνικές αλληλεπιδράσεις. Ευρήματα ερευνών έχουν καταγράψει έκπτωση αυτής της ικανότητας, τουλάχιστον ως προς επιμέρους εκφάνσεις της, κατά τη φυσιολογική ενηλικίωση αλλά και κατά την παρουσία διάφορων νοσημάτων που επηρεάζουν τη νευρολογική λειτουργία. Ωστόσο η σχέση της Χρόνιας Νεφρικής Νόσου (ΧΝΝ) με τη Θεωρία του Νου δεν έχει διερευνηθεί σχεδόν καθόλου. Υπό αυτό το πρίσμα, στόχος της έρευνας ήταν να διερευνηθεί το επίπεδο ΘτΝ ως κατανόησης του μεταφορικού ή έμμεσου και του αδιάκριτου λόγου στη ΧΝΝ. Ένας δεύτερος στόχος ήταν η εξέταση της σχέσης ΘτΝ – γνωστικού ελέγχου στη ΧΝΝ, προκειμένου να κατανοηθούν επαρκέστερα τυχόν ελλείμματα στη ΘτΝ. Στην έρευνα έλαβαν μέρος 75 ενήλικες, οι οποίοι ανήκαν σε 2 ομάδες εξισωμένες ως προς την ηλικία, το φύλο και το μορφωτικό επίπεδο: α) αιμοκαθαιρόμενοι, (n = 36) και β) υγιείς ή ομάδα ελέγχου (n = 39). Όλοι εξετάστηκαν σε δοκιμασίες ΘτΝ αλλά και γνωστικού ελέγχου. Τα αποτελέσματα κατέγραψαν στατιστικώς σημαντική διαφορά ανάμεσα στις δύο ομάδες στις δοκιμασίες εργαζόμενης μνήμης και κατανόησης των Faux Pas (αδιάκριτου λόγου). Οι επιδόσεις αυτές ήταν αρνητικά συσχετισμένες μεταξύ τους αλλά και με τα έτη αιμοκάθαρσης στην ομάδα ΧΝΝ. Συνεπώς, φαίνεται να υπάρχουν εστιασμένα ελλείμματα στη ΘτΝ των ασθενών με ΧΝΝ τα οποία συνδέονται με ελλείμματα της εργαζόμενης μνήμης τουλάχιστον στους ασθενείς που υποβάλλονται σε αιμοκάθαρση, για πολλά χρόνια
description: Theory of Mind (TOM) is a dimension of social intelligence, indispensable for social interactions. Research findings have shown a decline in this capacity, at least in individual aspects, during normal adulthood and in the presence of various diseases affecting neurological function. However, the relationship of Chronic Kidney Disease (CKD) to Theory of Mind has not been investigated at all. In this respect, the aim of the research was to investigate the level of TOM as an understanding of the transport or indirect and indiscriminate reason in CKD. A second objective was to examine the relationship of TOM - cognitive control to CKD in order to better understand any TOMdeficits. In the survey, 75 adults were included in two groups equalized for age, gender and educational level: a) hemodialysis (n = 36) and b) healthy or control group (n=39). All were tested in both TOM and cognitive tests. The results recorded a statistically significant difference between the two groups in the working memory tests and Faux Pas comprehension tests. These performances were negatively correlated with each other and with the dialysis years in the CKD group. Therefore, there seems to be targeted TOM deficits of CKD patients associated with working memory deficits at least in patients undergoing hemodialysis for many years
Kinetics of bond formation in crosslinked gelatin gels
Creators: name: Abete, T.
name: Del Gado, E.
name: Serughetti, D. Hellio
name: de Arcangelis, L.
name: Djabourov, M.
name: Coniglio, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In chemical crosslinking of gelatin solutions, two different time scales affect the kinetics of the gel formation in the experiments. We complement the experimental study with Monte Carlo numerical simulations of a lattice model. This approach shows that the two characteristic time scales are related to the formation of single bonds crosslinker-chain and of bridges between chains. In particular their ratio turns out to control the kinetics of the gel formation. We discuss the effect of the concentration of chains. Finally our results suggest that, by varying the probability of forming bridges as an independent parameter, one can finely tune the kinetics of the gelation via the ratio of the two characteristic times.
description: 8 pages, 9 figures, revised version
Διερεύνηση της δυνατότητας αξιοποίησης παράκτιων υφάλμυρων πηγών
Creators: name: Τσακίρης, Δημήτριος Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Υδρογεωλογία
Παράκτιες υφάλμυρες πηγές
Αξιοποίηση παράκτιων και υποθαλάσσιων πηγών
Hydrogeology
Coastal brackish springs
Exploiting coastal and submarine springs

description: Στην παρούσα εργασία ασχοληθήκαμε με την τρέχουσα γνώση των παράκτιων καρστικών πηγών και υδροφόρων οριζόντων και στόχος της είναι να χαρακτηρίσει τη λειτουργία και την δυνατότητα αξιοποίησης των συστημάτων αυτών, που συνδέονται στενά με τη θάλασσα. Παρουσιάζεται η προσέγγιση για την επίλυση του προβλήματος της αξιοποίησης των γλυκών υδάτων στους παράκτιους καρστικούς υδροφορείς κατά τη διάρκεια των ξηρών περιόδων όπου οι συνθήκες ευνοούν τη δυνατότητα διείσδυσης αλμυρού νερού. Η προσέγγιση στηρίζεται στην καταγραφή παλαιότερων και πρόσφατων μελετών περίπτωσης, ανά τον κόσμο, των υδροφορέων και των πηγών. Με βάση τα ευρήματά τους, μπορεί να αποδειχθεί ότι δύο είναι οι βασικοί μηχανισμοί που εμπλέκονται στη λειτουργία αυτών των συστημάτων, το ότι οι υδροφόροι ορίζοντες εκφορτίζουν μέσω υποθαλάσσιων πηγών και ότι παρατηρείται διείσδυση αλμυρού νερού μέσω αγωγών ανοιχτά προς τη θάλασσα. Η έρευνα των παράκτιων καρστικών πηγών έχει αποκαλύψει κάποια κοινά χαρακτηριστικά που δείχνουν την ανάπτυξη ή/και την λειτουργική ικανότητα των καρστικών δικτύων αποχέτευσής τους και βοήθησε στη λήψη αποφάσεων σχετικά με την ενδεχόμενη εκμετάλλευση των υδάτινων πόρων στις παράκτιες περιοχές. Τέλος, παρουσιάζονται συστήματα για την αφαλάτωση των υφάλμυρων καρστικών πηγών στην καρστική παράκτια ζώνη, χρησιμοποιώντας την εμπειρία που αποκτήθηκε στον εντοπισμό, την αξιοποίηση και την μοντελοποίηση των υπόγειων καρστικών συστημάτων
description: This paper focuses on the current knowledge of coastal karst aquifers and aims to define the functionality and the possibility of reclaiming those systems which are closely linked with the sea. It presents an approach for solving the problem of exploitation of freshwater in the coastal karst aquifer during summer dry periods in the conditions of potential salt water intrusion. This approach is based on the registration of old and new case studies of aquifers and springs, around the globe. Based on their findings, it is proven that two essential mechanisms are involved in the functionality of these systems, the fact that aquifer discharge through submarine springs and saline intrusion through conduits open to the sea. This survey of coastal karst aquifers has revealed some common characteristics that show the development and/or functional capacity of their karst drainage networks. A classification of such systems into three categories is proposed with the aim of assisting in the decision-making concerning potential exploitation of water resources in coastal regions. Finally, ways for desalinating brackish karst springs in karst coastal zone are presented, using the experience gained by the identification and the modeling of underground karst systems
Asymptotic theory for the multidimensional random on-line nearest-neighbour graph
Creators: name: Wade, Andrew R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60D05 (Primary) 60F25, 90B15, 05C80 (Secondary)

description: The on-line nearest-neighbour graph on a sequence of $n$ uniform random points in $(0,1)^d$ ($d \in \N$) joins each point after the first to its nearest neighbour amongst its predecessors. For the total power-weighted edge-length of this graph, with weight exponent $α\in (0,d/2]$, we prove $O(\max \{n^{1-(2α/d)}, \log n \})$ upper bounds on the variance. On the other hand, we give an $n \to \infty$ large-sample convergence result for the total power-weighted edge-length when $α> d/2$. We prove corresponding results when the underlying point set is a Poisson process of intensity $n$.
description: 25 pages; v2: substantial revision, change in title, central limit theorem present in v1 removed due to a gap
Interaction induced bi-skin effect in an exciton-polariton system
Creators: name: Xu, Xingran
name: Xu, Huawen
name: Mandal, S.
name: Banerjee, R.
name: Ghosh, Sanjib
name: Liew, T. C. H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The non-Hermitian skin effect can be realized through asymmetric hopping between forward and backward directions, where all the modes of the system are localized at one edge of a finite 1D lattice. However, achieving such an asymmetric hopping in optical systems is far from trivial. Here we show theoretically that in a finite chain of 1D exciton-polariton micropillars with symmetric hopping, the inherent non-linearity of the system can exhibit a bi-skin effect, where the modes of the system are localized at the two edges of the system. To show the topological origin of such modes, we calculate the winding number.
Yánesha' Field Materials
Creators: name: Ambrosio Santos, Yolanda
name: Ballesteros Sebastián, Brígida Dominga
name: Bautista Mariño, Eder
name: Carpena López, Juana
name: Chihuanco Ambrosio, Mercedes
name: Chihuanco Cruz, Lucho
name: Dionicio Machari, Diverata Judith
name: Domingo López, Herminio
name: Francisco Quenchuya, Josefa
name: Huancho, Asael
name: López Carpena, José
name: Mariño Sedano, Celestino
name: Mariño, Cristina
name: Miguel Toribio, Valbina
name: Ortiz Espíritu, Tsentpoll
name: Potesta Pérez, Rubén Santiago
name: Quenchuya Abell, Thosen
name: Victoriano Gaspar, Kledy Olga
name: Robertson, Allegra
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022

description: This collection is organized in five categories: 1. Stories and songs (audio recordings, two video recordings); 2. Elicitation sessions (audio recordings); 3. Transcription sessions (audio recordings); 4. Field notes (scanned handwritten notes); 5. Photos of language consultants and field sites. Within each category, items are ordered chronologically. Stories and songs can be found in items 2022-12.001 through 030. Elicitation sessions are located in items 031 through 049. Transcription sessions can be found in items 050 through 059. Field notes are located in item 060. Photos can be found in items 061 through 062.

Esta colección está organizada en cinco categorías: 1. Cuentos y cantos (grabaciones de audio; dos grabaciones de video); 2. Sesiones de elicitación (grabaciones de audio); 3. Sesiones de traducción (grabaciones de audio); 5. Notas de campo (notas escritas a mano, escaneadas); 5. Fotos de los especialistas lingüísticos y de los sitios de trabajo de campo. En cada categoría, los archivos están organizados en orden cronológico. Los cuentos y cantos están en las carpetas 2022-12.001 hasta 030. Las sesiones de elicitación están en 031 hasta 049. Las sesiones de traducción están en 050 hasta 059. Las notas de campo están en 060. Las fotos están en 061 hasta 062.
A fluidized bed membrane reactor for steam methane reforming: experimental verification and model validation
Creators: name: Adris, Alaa-Eldin M.
Publisher: name: University of British Columbia
Year: 2009

description: Steam reforming of light hydrocarbons, especially natural gas, is an industrially important chemical reaction and a key step for producing hydrogen and syngas for ammonia and methanol production, hydrocracking and hydrotreating, oxo-alcohol and Fischer-Tropsch synthesis and other essential processes in the petroleum and petrochemical industries. However, industrial fixed bed steam reformers suffer from several problems which seriously affect the operation and performance of these reactors: low catalyst effectiveness due to mass transfer resistance, low heat transfer rates, large temperature gradients and thermodynamic equilibrium constraints. These problems with conventional reformers can be alleviated by using a new fluidized bed membrane reactor (FBMR) system. The FBMR system combines the several advantages of fhiidized beds as catalytic chemical reactors, in particular catalyst bed uniformity, improved heat transfer and virtual elimfriation of diflhsional limitations, with advantages offered by permselective membrane technology, in particular shifting the conventional thermodynamic equilibrium and the in-situ separation and removal of a desirable reaction product. A pilot scale reforming plant was designed, constructed and commissioned to prove the concept of the new reactor system and to study its properties. The pilot reactor system had a hydrogen production capacity of 6 m³[STP]Ih and was designed to withstand temperatures up to 750 C and pressures up to 1.5 MPa. The reactor had a main body of inside diameter 97 mm and length 1.143 m, in addition to an expansion section of inside diameter 191 mm and length 0.3 05 in. The reactor was provided with thin-walled palladium-based tubes as hydrogen permseleotive membranes. The work presented in this thesis shows the reforming catalyst to be fluidizable, when the proper particle size range is used, and able to withstand the mechanical environment of the fluidized bed reactor to a reasonable extent. The investigation also indicates that fluidized bed process with hydrogen removal via permselective membrane tubes is feasible from a technical point ofview. Advantages of the new process demonstrated by this study include major decreases in the reactor size and in the amount of catalyst required, withdrawal of a very pure hydrogen product, operation beyond normal conversion limits imposed by thermodynamic equilibrium and suppression of undesirable (backward) reactions in the freeboard region. The shifi of the reaction equilibrium reduces the reforming reactor energy requirements and is advantageous from an environmental point ofview. Economic feasibility ofthe new reactor system will improve as technical improvements are made in membranes to allow, for example, thin uniform layers of palladium or nickel on a porous ceramic or sintered metal substrate.
IMAGES-III: The evolution of the Near-Infrared Tully-Fisher relation over the last 6 Gyr
Creators: name: Puech, M.
name: Flores, H.
name: Hammer, F.
name: Yang, Y.
name: Neichel, B.
name: Lehnert, M.
name: Chemin, L.
name: Nesvadba, N.
name: Epinat, B.
name: Amram, P.
name: Balkowski, C.
name: Cesarsky, C.
name: Dannerbauer, H.
name: Alighieri, S. di Serego
name: Fuentes-Carrera, I.
name: Guiderdoni, B.
name: Kembhavi, A.
name: Liang, Y. C.
name: Oestlin, G.
name: Pozzetti, L.
name: Ravikumar, C. D.
name: Rawat, A.
name: Vergani, D.
name: Vernet, J.
name: Wozniak, H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using the multi-integral field spectrograph GIRAFFE at VLT, we have derived the K-band Tully-Fisher relation (TFR) at z~0.6 for a representative sample of 65 galaxies with emission lines. We confirm that the scatter in the z~0.6 TFR is caused by galaxies with anomalous kinematics, and find a positive and strong correlation between the complexity of the kinematics and the scatter that they contribute to the TFR. Considering only relaxed-rotating disks, the scatter, and possibly also the slope of the TFR, do not appear to evolve with z. We detect an evolution of the K-band TFR zero point between z~0.6 and z=0, which, if interpreted as an evolution of the K-band luminosity of rotating disks, would imply that a brightening of 0.66+/-0.14 mag occurs between z~0.6 and z=0. Any disagreement with the results of Flores et al. (2006) are attributed to both an improvement of the local TFR and the more detailed accurate measurement of the rotation velocities in the distant sample. Most of the uncertainty can be explained by the relatively coarse spatial-resolution of the kinematical data. Because most rotating disks at z~0.6 are unlikely to experience further merging events, one may assume that their rotational velocity does not evolve dramatically. If true, our result implies that rotating disks observed at z~0.6 are rapidly transforming their gas into stars, to be able to double their stellar masses and be observed on the TFR at z=0. The rotating disks observed are indeed emission-line galaxies that are either starbursts or LIRGs, which implies that they are forming stars at a high rate. Thus, a significant fraction of the rotating disks are forming the bulk of their stars within 6 to 8 Gyr, in good agreement with former studies of the evolution of the M-Z relation.
description: 17 pages, 11 figures, accepted for publication in A&A. v2 taking into account comments from language editor
Many-body localization in the interpolating Aubry-André-Fibonacci model
Creators: name: Štrkalj, Antonio
name: Doggen, Elmer V. H.
name: Gornyi, Igor V.
name: Zilberberg, Oded
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the localization properties of a spin chain with an antiferromagnetic nearest-neighbour coupling, subject to an external quasiperiodic on-site magnetic field. The quasiperiodic modulation interpolates between two paradigmatic models, namely the Aubry-André and the Fibonacci models. We find that stronger many-body interactions extend the ergodic phase in the former, whereas they shrink it in the latter. Furthermore, the many-body localization transition points at the two limits of the interpolation appear to be continuously connected along the deformation. As a result, the position of the many-body localization transition depends on the interaction strength for an intermediate degree of deformation of the quasiperiodic modulation. Moreover, in the region of parameter space where the single-particle spectrum contains both localized and extended states, many-body interactions induce an anomalous effect: weak interactions localize the system, whereas stronger interactions enhance ergodicity. We map the model's localization phase diagram using the decay of the quenched spin imbalance in relatively long chains. This is accomplished employing a time-dependent variational approach applied to a matrix product state decomposition of the many-body state. Our model serves as a rich playground for testing many-body localization under tunable potentials.
description: 13 pages, 9 figures, comments are welcome
Additional file 1 of MEBO versus topical Diltiazem versus a combination of both ointments in the treatment of acute anal fissure: a randomized clinical trial protocol
Creators: name: Charif, Mohamad Hadi El
name: Doughan, Samer
name: Rawya Kredly
name: Kassas, Sara
name: Rayan Azab
name: Sbaity, Eman
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Consent Form English – the consent form used for documenting patient’s consent to participate.
Additional file 2 of MEBO versus topical Diltiazem versus a combination of both ointments in the treatment of acute anal fissure: a randomized clinical trial protocol
Creators: name: Charif, Mohamad Hadi El
name: Doughan, Samer
name: Rawya Kredly
name: Kassas, Sara
name: Rayan Azab
name: Sbaity, Eman
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. SPIRIT Checklist – the SPIRIT checklist marked for pages relevant to each criteria listed in the SPIRIT guideline.
Alignment of the magnetic field in star forming regions and why it might be difficult to observe
Creators: name: Girichidis, Philipp
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Magnetic fields are an important component of the interstellar medium (ISM) and exhibit strongly varying field strengths and a non-trivial correlation with the gas density. Its dynamical impact varies between individual regions of the ISM and correlates with the orientation of the field with respect to the gas structures. Using high-resolution magneto-hydrodynamical simulations of the ISM we explore the connection between the orientation of the field and the dynamical state of the gas. We find that the onset of gravitational instability in molecular gas above a density of $ρ\sim10^{-21}\,\mathrm{g\,cm^{-3}}$ $(n\sim400\,\mathrm{cm^{-3}})$ coincides with an alignment of the magnetic field lines and the gas flow. At this transition the gradient of the density changes from mainly perpendicular to preferentially parallel to the field lines. A connection between the three-dimensional alignment and projected two-dimensional observables is non-trivial, because of a large dispersion of the magnetic field orientation along the line of sight. The turbulent correlation lengths can be small compared to the typical integration lengths. As a consequence the small scale signal of the orientation can sensitively depend on the line of sight or the dynamical state of the cloud, can fluctuate stochastically or be completely averaged out. With higher spatial resolution more small scale structures are resolved, which aggravates the link between magneto-hydrodynamical quantities and projected observables.
description: 20 pages, 16 figures, MNRAS accepted, corrected typos, updated references
PROBLEMS OF DEVELOPING THE SOCIAL COMPETENCE OF STUDENTS IN THE PROCESS OF HIGHER PEDAGOGICAL EDUCATION
Creators: name: Raxmanova Muqaddas Qaxramonovna Alfraganus University Pedagogy and psychology department. associate professor Ph.D.(DSc), Tashkent.Uzbekistan)
Publisher: name: Zenodo
Year: 2023

description: In the article, the didactic support of the educational process based on professional characteristics as well as the qualification requirements of students in the development of social competence, the tasks of choosing individual approaches in the implementation of the educational process with the problems of social competence development, conclusions and recommendations are presented.

Keywords: social competence, individual regulation, creative activity, social professional value, social culture, social knowledge, exchange of interaction, social-communication process.
Homophones & Glossary
Creators: name: Institute of Legal and Policy Research
Publisher: name: Zenodo
Year: 2024

description: This work delves into the fascinating realm of homophones, exploring words that share identical or similar pronunciations yet possess distinct spellings and meanings. By scrutinizing linguistic nuances, the study aims to unravel the intricacies of these lexical counterparts, shedding light on their role in language ambiguity, comprehension challenges, and the importance of context in deciphering their intended meanings. Through a comprehensive analysis of selected homophonic pairs, this research contributes to our understanding of the subtle variations that make language a rich and dynamic tapestry while highlighting the implications of homophones in written and spoken communication.
The sonic analogue of black hole radiation
Creators: name: Giovanazzi, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A microscopic description of Hawking radiation in sonic black holes has been recently presented (Giovanazzi S 2005 Phys. Rev. Lett. 94 061302). This exactly solvable model is formulated in terms of one-dimensional scattering of a Fermi gas. In this paper, the model is extended to account possible finite size effects of a realistic geometry. The flow of particles is maintained by a piston (i.e. an impenetrable barrier) moving slowly towards the sonic horizon. Using existing technologies the Hawking temperature can be of order of a few microkelvin in a realistic experiment.
description: 14 pages, 7 figures, submitted to Journal of Physics B: Atomic, Molecular & Optical Physics
Additional file 4 of MEBO versus topical Diltiazem versus a combination of both ointments in the treatment of acute anal fissure: a randomized clinical trial protocol
Creators: name: Charif, Mohamad Hadi El
name: Doughan, Samer
name: Rawya Kredly
name: Kassas, Sara
name: Rayan Azab
name: Sbaity, Eman
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 4. Appendix A – NRS; Numeric Rating Scale for measuring Pain Score associated with the anal fissure as reported by the patient.
Review of Low Energy Neutrinos
Creators: name: Vergados, J. D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Some issues regarding low energy neutrinos are reviewed. We focus on three aspects i)We show that by employing very low energy (a few keV) electron neutrinos, neutrino disappearance oscillations can be investigated by detecting recoiling electrons with low threshold spherical gaseous TPC's. In such an experiment, which is sensitive to the small mixing angle theta13, the novel feature is that the oscillation length is so small that the full oscillation takes place inside the detector. Thus one can determine accurately all the oscillation parameters and, in particular, measure or set a good limit on theta13. ii) Low threshold gaseous TPC detectors can also be used in detecting nuclear recoils by exploiting the neutral current interaction. Thus these robust and stable detectors can be employed in supernova neutrino detection. iii) The lepton violating neutrinoless double decay is investigated focusing on how the absolute neutrino mass can be extracted from the data
description: 11 pages, 9 figures, Work presented in the Third Symposium on Large TPC's for Low Energy Rare Event Detection, Paris, Dec. 11-12, 2006 and NUMMY07 ENTApP Network Meeting, Durham, Jan. 10-12, 2007
Fast algorithms for computing the Boltzmann collision operator
Creators: name: Mouhot, Clément
name: Pareschi, Lorenzo
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65T50, 68Q25, 74S25, 76P05

description: The development of accurate and fast numerical schemes for the five fold Boltzmann collision integral represents a challenging problem in scientific computing. For a particular class of interactions, including the so-called hard spheres model in dimension three, we are able to derive spectral methods that can be evaluated through fast algorithms. These algorithms are based on a suitable representation and approximation of the collision operator. Explicit expressions for the errors in the schemes are given and spectral accuracy is proved. Parallelization properties and adaptivity of the algorithms are also discussed.
description: 22 pages