cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
New Formulation and Development for Inhibiting the Growth of Streptococcus Pyogenes for the Future Study  of Nipah Virus and Disease X
Creators: name: Shibanjan Paul Roy
Publisher: name: Zenodo
Year: 2023

description: ABSTRACT
As in this study we precisely inspect our formulation against strain of S.Pyogenes.For our present thesis first we  
know perfectly about nipah virus as it is caused by bat borne disease with a very high mortality rate.It recently  
outbreak in Kerala state of India.As nipah is more dangerous and ditectly infected to the pigs and bats.We are  
unable to collect the Nipah virus strain but our antiviral formulation may be working properly as we seen in our  
present thesis.As present status we know no medicine no vaccine to treat nipah virus.In this thesis we used oregano  
oil,Psidium Guajava fruit extract,rosemary officinalis leaf extract,Echinacea purple flower extract,Adhatoda  
vasaka leaf extract,Mint leaves extract which have very most antiviral activity as well as European Honey Bee  
producing Honey which has most powerful antiviral activities.As we never confirm that our formulation is useful in  
nipah virus condition as because we have no strain of nipah virus but we always may be say that it may be useful in  
nipah virus infected patients as a supporting way but further clinical trial mostly needed.We never claim that our  
formulation treats the nipah virus because we have no strain,we invented formulation for viral fever,cold,headache  
of viral symptoms, but if further clinical trials we know about it results.But in future our formulation may be a  
supportive part for Nipah virus with medicines for infected patients or our formulation may be a Nipah Virus  
medicine in furure in a supporting way.For about Disease X" is a disease sometimes used to refer to a hypothetical,  
unknown disease.As we have no strain of Disease X but by study we known about it's symptoms as it occurs by Very  
High Transmissible acute respiratory syndrome.As by experiencing symptoms of a respiratory tract infection, it's  
important to seek proper medical advice.The common symptoms may include cough,fever, congestion, sore throat  
and difficulty breathing.However, specific symptoms can vary by depending on the underlying cause of  
the infection.As we never claim that our formulation is the medicine against Disease X.But it may be a medicine for  
Disease X as a supporting way in future.As we used this bacterial strain S.Pyogenes as for 3566 cases of patiens were  
more severe 3422 of 96% were the sufficient identifiers as linked to the death registrations overall 698 patients were  
died within 30days as we study.As we know about this S.Pyogenes a large sporadic infection caused by  
population.As it is a ferocious pathogen as 18.1million peoples infecting by this where resulting 500,000 deaths each  
year.As it's symptoms also Viral fever,Respiratory Problems like sore throat,cold,coughetc.We know that there  
many medicines available for this S.Pyogenes but for potenty of our formulation we performed the antimicrobial  
activity against this.AsS.Pyogenes symptoms are Viral fever,Repiratory Problems etc.
Semiparametric single index versus fixed link function modelling
Creators: name: Härdle, Wolfgang
name: Sperlich, Stefan
name: Spokoiny, Vladimir
Publisher: name: Weierstrass Institute
Year: 1995
Subjects: subject: discrete choice models
subject: nonparametric regression
subject: single index modelling
subject: semiparametric alternative
subject: parametric hypothesis
subject: rate-optimal
subject: power function
subject: 62G10
subject: 62G07
subject: 62H99
subject: 62G20
subject: 62P20

description: Discrete choice models are frequently used in statistical and econometric practice. Standard models such as logit models are based on exact knowledge of the form of the link and linear index function. Semiparametric models avoid possible misspecification but often introduce a computational burden. It is therefore interesting to decide between approaches. Here we propose a test of semiparametric versus parametric single index modelling. Our procedure allows that the (linear) index of the semiparametric alternative is different from that of the parametric hypothesis. The test is proved to be rate-optimal in the sense that it provides the (rate) minimal distance between hypothesis and alternative for a given power function.
All projections of a typical Cantor set are Cantor sets
Creators: name: Frolkina, Olga
Publisher: name: arXiv
Year: 2022
Subjects: subject: Geometric Topology (math.GT)
subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 54E52, 54C25

description: In 1994, John Cobb asked: given $N>m>k>0$, does there exist a Cantor set in $\mathbb R^N$ such that each of its projections into $m$-planes is exactly $k$-dimensional? Such sets were described for $(N,m,k)=(2,1,1)$ by L.Antoine (1924) and for $(N,m,m)$ by K.Borsuk (1947). Examples were constructed for the cases $(3,2,1)$ by J.Cobb (1994), for $(N,m,m-1)$ and in a different way for $(N,N-1,N-2)$ by O.Frolkina (2010, 2019), for $(N,N-1,k)$ by S.Barov, J.J.Dijkstra and M.van der Meer (2012). We show that such sets are exceptional in the following sense. Let $\mathcal C(\mathbb R^N)$ be a set of all Cantor subsets of $\mathbb R^N$ endowed with the Hausdorff metric. It is known that $\mathcal C(\mathbb R^N)$ is a Baire space. We prove that there is a dense $G_δ$ subset $\mathcal P \subset \mathcal C(\mathbb R^N)$ such that for each $X\in \mathcal P$ and each non-zero linear subspace $L \subset \mathbb R^N$, the orthogonal projection of $X$ into $L$ is a Cantor set. This gives a partial answer to another question of J.Cobb stated in the same paper (1994).
Optimal spatial adaptation to inhomogeneous smoothness: an approach based on kernel estimates with variable bandwidth selectors
Creators: name: Lepskii, Oleg
name: Mammen, Enno
name: Spokoiny, Vladimir G.
Publisher: name: Weierstrass Institute
Year: 1995
Subjects: subject: Besov spaces
subject: spatial adaptation
subject: minimax rate of convergence
subject: white noise model
subject: kernel estimation
subject: 62G07
subject: 62G20

description: A new variable bandwidth selector for kernel estimation is proposed. The application of this bandwidth selector leads to kernel estimates that achieve optimal rates of convergence over Besov classes. This implies that the procedure adapts to spatially inhomogeneous smoothness. In particular, the estimates share optimality properties with wavelet estimates based on thresholding of empirical wavelet coefficients.
Pairwise disjoint Moebius bands in space
Creators: name: Frolkina, Olga
Publisher: name: arXiv
Year: 2022
Subjects: subject: Geometric Topology (math.GT)
subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 57M30, 57N35, 54C25

description: V.V.Grushin and V.P.Palamodov proved in 1962 that it is impossible to place in $R^3$ uncountably many pairwise disjoint polyhedra each homeomorphic to the Moebius band. We generalize this result in two directions. First, we give a generalization of this result to tame subsets in $R^N$, $N\geqslant 3$. Second, we show that in case of $R^3$ the theorem holds for arbitrarily topologically embedded (not necessarily tame) Moebius bands.
Cantor sets with high-dimensional projections
Creators: name: Frolkina, Olga
Publisher: name: arXiv
Year: 2022
Subjects: subject: Geometric Topology (math.GT)
subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: Primary 54F45, Secondary 57N15, 57M30

description: In 1994, J.Cobb constructed a tame Cantor set in $\mathbb R^3$ each of whose projections into $2$-planes is one-dimensional. We show that an Antoine's necklace can serve as an example of a Cantor set all of whose projections are one-dimensional and connected. We prove that each Cantor set in $\mathbb R^n$, $n\geqslant 3$, can be moved by a small ambient isotopy so that the projection of the resulting Cantor set into each $(n-1)$-plane is $(n-2)$-dimensional. We show that if $X\subset \mathbb R^n$, $n\geqslant 2$, is a zero-dimensional compactum whose projection into some plane $Π\subset \mathbb R^n$ with $\dim Π\in \{1, 2, n-2, n-1\}$ is zero-dimensional, then $X$ is tame; this extends some particular cases of the results of D.R.McMillan, Jr. (1964) and D.G.Wright, J.J.Walsh (1982). We use the technique of defining sequences which comes back to Louis Antoine.
Classical Reciprocity Laws
Creators: name: Dalawat, Chandan Singh
Publisher: name: arXiv
Year: 2014
Subjects: subject: History and Overview (math.HO)
subject: FOS: Mathematics
subject: 11

description: Using the quadratic reciprocity law as the motivating example, we convey an understanding of classical reciprocity laws.
description: 9 pages
Beyond Gibbs-Boltzmann-Shannon: General Entropies -- The Gibbs-Lorentzian Example
Creators: name: Treumann, R. A.
name: Baumjohann, W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We propose a generalisation of Gibbs' statistical mechanics into the domain of non-negligible phase space correlations. Derived are the probability distribution and entropy as a generalised ensemble average, replacing Gibbs-Boltzmann-Shannon's entropy definition enabling construction of new forms of statistical mechanics. The general entropy may also be of importance in information theory and data analysis. Application to generalised Lorentzian phase space elements yields the Gibbs-Lorentzian power law probability distribution and statistical mechanics. Details can be found in arXiv:1406.6639
description: 6 pages, no figures, paper appeared in slightly different form in. For details on application see arXiv:1406.6639
Fractional phase transitions of RN-AdS black hole at Davies points
Creators: name: Wang, Li-Hua
name: He, Yun
name: Ma, Meng-Sen
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We perform a study of phase transitions of RN-AdS black hole at its Davies points according to a generalized Ehrenfest classification of phase transition established on the basis of fractional derivatives. Davies points label the positions where heat capacity diverges. According to the usual Ehrenfest classification, second-order phase transitions occur there. For RN-AdS black hole, the Davies points can be classified into two types. The first type corresponds to the extreme values of temperature and the second type corresponds to the infection point(namely the critical point) of temperature. Employing the generalized Ehrenfest classification, we find that the orders of phase transition at the two types of Davies points are different. It is $3/2$-order for the first type and $4/3$-order for the second type. Thus this finer-grained classification can discriminate phase transitions that are supposed to be in the same category, which may provide some new insights toward a better understanding of black hole thermodynamics.
description: 13 pages, 4 figures, to be published in Chinese Physics C
Boundary element collocation methods using splines with multiple knots
Creators: name: McLean, William
name: Prößdorf, Siegfried
Publisher: name: Weierstrass Institute
Year: 1995
Subjects: subject: splines with multiple knots
subject: Symm´s equation
subject: stability
subject: error analysis
subject: collocation methods
subject: boundary integral equations
subject: convergence
subject: superconvergence
subject: numerical experiments
subject: 65N38
subject: 41A15
subject: 65N12
subject: 35S99
subject: 42A16

description: We extend the theory of boundary element collocation methods by allowing reduced inter-element smoothness (or in other words, by allowing trial functions that are splines with multiple knots). Our convergence analysis is based on a recurrence relation for the Fourier coefficients of the numerical solution, and so is restricted to uniform grids on smooth, closed curves. Superconvergence is possible with special choices of the collocation points. Numerical experiments with a model problem confirm the convergence rates predicted by our theory.
Wavelet thresholding in anisotropic function classes and application to adaptive estimation of evolutionary spectra
Creators: name: Neumann, Michael H.
name: Von Sachs, Rainer
Publisher: name: Weierstrass Institute
Year: 1995
Subjects: subject: Anisotropic smoothness classes
subject: adaptive estimation
subject: optimal rate of convergence
subject: wavelet thresholding
subject: tensor product basis
subject: time-frequency plane
subject: locally stationary time series
subject: evolutionary spectrum
subject: 62G07
subject: 62M15
subject: 62E20
subject: 62M10

description: We derive minimax rates for estimation in anisotropic smoothness classes. This rate is attained by a coordinatewise thresholded wavelet estimator based on a tensor product basis with separate scale parameter for every dimension. It is shown that this basis is superior to its one-scale multiresolution analog, if different degrees of smoothness in different directions are present. As an important application we introduce a new adaptive wavelet estimator of the time-dependent spectrum of a locally stationary time series. Using this model which was recently developed by Dahlhaus, we show that the resulting estimator attains nearly the rate, which is optimal in Gaussian white noise, simultaneously over a wide range of smoothness classes. Moreover, by our new approach we overcome the difficulty of how to choose the right amount of smoothing, i.e. how to adapt to the appropriate resolution, for reconstructing the local structure of the evolutionary spectrum in the time-frequency plane.
title: Συμπεριφορά φραγμάτων λιθορριπής διερχομένων από ενεργό τεκτονικό ρήγμα
titleType: AlternativeTitle
Creators: name: Βρόντζος, Ιωάννης
Publisher: name: University of Thessaly
Year: 2013
Subjects: subject: ΑΝΤΟΧΗ ΤΩΝ ΥΛΙΚΩΝ
subject: ΣΚΥΡΟΔΕΜΑ -- ΚΑΤΑΣΚΕΥΕΣ
subject: ΦΡΑΓΜΑΤΑ -- ΣΧΕΔΙΟ ΚΑΙ ΚΑΤΑΣΚΕΥΗ

description: Σημείωση: διατίθεται συμπληρωματικό υλικό σε ξεχωριστό αρχείο.
Error bounds of discretization methods for boundary integral equations with noisy data
Creators: name: Bruckner, Gottfried
name: Prößdorf, Siegfried
name: Vainikko, Gennadi
Publisher: name: Weierstrass Institute
Year: 1995
Subjects: subject: logarithmic difference kernel
subject: collocation method
subject: quadrature formula
subject: perturbations
subject: error analysis
subject: Sobolev spaces
subject: Hölder-Zygmund spaces
subject: Symm´s integral equation
subject: 65R30
subject: 65R20

description: The influence of small perturbations in the kernel and the right-hand side of boundary integral equations, e.g. of Symm's integral equation, discretized by collocation or quadrature formula methods, is analyzed in Sobolev and Hölder-Zygmund norms.
On Large Deviation Efficiency in Statistical Inference
Creators: name: Puhalskii, Anatolii
name: Spokoiny, Vladimir
Publisher: name: Weierstrass Institute
Year: 1995
Subjects: subject: Large deviation principle
subject: statistical experiments
subject: large deviation efficiency
subject: minimax risks
subject: Bahadur efficiency
subject: Chernoff function
subject: 62G20
subject: 60F10
subject: 62G05
subject: 62G10

description: This paper presents a general approach to statistical problems with criteria based on probabilities of large deviations. The underlying idea, which originates from similarity in the definitions of the large deviation principle and weak convergence, is to develop a large deviation analogue of asymptotic decision theory. We consider a sequence of statistical experiments over an arbitrary parameter set and introduce for it the concept of the large deviation principle (LDP) which parallels the concept of weak convergence of experiments. Our main result, in analogy with Le Cam's minimax theorem, states that the LDP provides an asymptotic lower bound for the sequence of appropriately defined minimax risks. We show next that the bound is tight and give a method of constructing decisions whose asymptotic risk is arbitrarily close to the bound. The construction is further specified for hypotheses testing and estimation problems. We apply the results to a number of standard statistical models: an i.i.d. sample, regression, the change-point model and others. For each model, we check the LDP; after that, considering first a hypotheses testing problem and then an estimation problem, we calculate asymptotic minimax risks and indicate corresponding decisions.
Relative astrometry in an annular field
Creators: name: Gai, Mario
name: Vecchiato, Alberto
name: Riva, Alberto
name: Butkevich, Alexey
name: Busonero, Deborah
name: Qi, Zhaoxiang
name: Lattanzi, Mario
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Background. Relative astrometry at or below the micro-arcsec level with a 1m class space telescope has been repeatedly proposed as a tool for exo-planet detection and characterization, as well as for several topics at the forefront of Astrophysics and Fundamental Physics. Aim. This paper investigates the potential benefits of an instrument concept based on an annular field of view, as compared to a traditional focal plane imaging a contiguous area close to the telescope optical axis. Method. Basic aspects of relative astrometry are reviewed as a function of the distribution on the sky of reference stars brighter than G = 12 mag (from Gaia EDR3). Statistics of field stars for targets down to G = 8 mag is evaluated by analysis and simulation. Results. Observation efficiency benefits from prior knowledge on individual targets, since source model is improved with few measurements. Dedicated observations (10-20 hours) can constrain the orbital inclination of exoplanets to a few degrees. Observing strategy can be tailored to include a sample of stars, materialising the reference frame, sufficiently large to average down the residual catalogue errors to the desired microarcsec level. For most targets, the annular field provides typically more reference stars, by a factor four to seven in our case, than the conventional field. The brightest reference stars for each target are up to 2 mag brighter. Conclusions. The proposed annular field telescope concept improves on observation flexibility and/or astrometric performance with respect to conventional designs. It appears therefore as an appealing contribution to optimization of future relative astrometry missions.
description: 20 pages, 16 figures
Sound des Mainstreams. Geschichtsdidaktik am Scheideweg
Creators: name: Heuer, Christian
Publisher: name: C. Heuer, Sound des Mainstreams. Geschichtsdidaktik am Scheideweg, «Public history weekly», 1, 2013, n. 7
Year: 2013

description: Die Reflexionen über die Zukunft der Geschichtsdidaktik haben bereits Geschichte, vor allem innerhalb dieser vergleichsweise jungen Disziplin. Der hier vorliegende Diskussionsvorschlag sieht sich als Teil dieser Geschichte und soll als ein Plädoyer für eine zeitgemäße Geschichtsdidaktik als Reflexionswissenschaft gelesen werden. Es geht darum, die tradierten Begriffe und Konzepte und den „Sound“ des geschichtsdidaktischen Mainstreams in Frage zu stellen.
Large Thermoelectricity via Variable Range Hopping in Chemical Vapor Deposition Grown Single-layer MoS2
Creators: name: Wu, Jing
name: Schmidt, Hennrik
name: Kumar, Amara Kiran
name: Xu, Xiangfan
name: Eda, Goki
name: Özyilmaz, Barbaros
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Ultrathin layers of semiconducting molybdenum disulfide (MoS2) offer significant prospects in future electronic and optoelectronic applications. Although an increasing number of experiments bring light into the electronic transport properties of these crystals, their thermoelectric properties are much less known. In particular, thermoelectricity in chemical vapor deposition grown MoS2, which is more practical for wafer-scale applications, still remains unexplored. Here, for the first time, we investigate these properties in grown single layer MoS2. Micro-fabricated heaters and thermometers are used to measure both electrical conductivity and thermopower. Large values of up to ~30 mV/K at room temperature are observed, which are much larger than those observed in other two dimensional crystals and bulk MoS2. The thermopower is strongly dependent on temperature and applied gate voltage with a large enhancement at the vicinity of the conduction band edge. We also show that the Seebeck coefficient follows S~T^1/3 suggesting a two-dimensional variable range hopping mechanism in the system, which is consistent with electrical transport measurements. Our results help to understand the physics behind the electrical and thermal transports in MoS2 and the high thermopower value is of interest to future thermoelectronic research and application.
description: 21 pages + 11 pages supporting information
Looking for distant dusty galaxies with JWST
Creators: name: Rodighiero, Giulia
Publisher: name: Zenodo
Year: 2023

description: I will present our recent updates about the search of very high-z galaxies (z>8) in the public JWST fields that require a significant amount of dust to explain their extreme red colours. They are classified as outliers in common colour diagrams with respect to the general population. I will discuss the impact of dust detections with respect to current theoretical predictions.
Stability of hypersurface sections of quadric threefolds
Creators: name: Byun, Sangho
name: Lee, Yongnam
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14L24, 14J15

description: Let $S$ be a complete intersection of a smooth quadric 3-fold $Q$ and a hypersurface of degree $d$ in ${\mathbb P}^4$. In this paper we analyze GIT stability of $S$ with respect to the natural $G=SO(5, {\mathbb C})$-action. We prove that if $d\ge 4$ and $S$ has at worst semi-log canonical singularities then $S$ is $G$-stable. Also, we prove that if $d\ge 3$ and $S$ has at worst semi-log canonical singularities then $S$ is $G$-semistable.
description: 10 pages, SCIENCE CHINA Mathematics (to appear)
Observing Circumplanetary Disks with METIS
Creators: name: Oberg, Nickolas
name: Kamp, Inga
name: Cazaux, Stephanie
name: Rab, Christian
name: Czoske, Oliver
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context: A full understanding of the planet and moon formation process requires observations that probe the circumplanetary environment of accreting giant planets. The mid-infrared ELT imager and spectrograph (METIS) will provide a unique capability to detect warm-gas emission lines from circumplanetary disks. Aims: We aim to demonstrate the capability of the METIS instrument on the Extremely Large Telescope (ELT) to detect circumplanetary disks (CPDs) with fundamental v=1-0 transitions of $^{12}$CO from 4.5-5 $μ$m. Methods: We consider the case of the well-studied HD 100546 pre-transitional disk to inform our disk modeling approach. We use the radiation-thermochemical disk modeling code ProDiMo to produce synthetic spectral channel maps. The observational simulator SimMETIS is employed to produce realistic data products with the integral field spectroscopic (IFU) mode. Results: The detectability of the CPD depends strongly on the level of external irradiation and the physical extent of the disk, favoring massive (~10 M$_{\rm J}$) planets and spatially extended disks with radii approaching the planetary Hill radius. The majority of $^{12}$CO line emission originates from the outer disk surface, and thus the CO line profiles are centrally peaked. The planetary luminosity does not contribute significantly to exciting disk gas line emission. If CPDs are dust-depleted, the $^{12}$CO line emission is enhanced as external radiation can penetrate deeper into the line emitting region. Conclusions: UV-bright star systems with pre-transitional disks are ideal candidates to search for CO-emitting CPDs with ELT/METIS. METIS will be able to detect a variety of circumplanetary disks via their fundamental $^{12}$CO ro-vibrational line emission in only 60 s of total detector integration time.
description: 13 Pages, 11 Figures, accepted for publication in A&A
597 Norwegian excavation databases and CIDOC CRM - a practical exercise
Creators: name: Ore, Christian‐Emil
Publisher: name: Zenodo
Year: 2022
Subjects: Archaeology
Excavation
INTRASIS

description: This presentation addresses the practical exercise of aligning 597 Norwegian excavation databases from INTRASIS using CIDOC CRM. In Norway, INTRASIS has been the standard excavation documentation system since 2010: INTRASIS is extremely flexible and can be adapted to most excavation practices. This is done through a user defined metadata template, in which one can define object classes, subclasses, attributes and relations between the classes, as well as how these will be visualised on the maps. The flexibility also has a downside, since it can be hard to export data into a common database from a series of excavation databases based on adapted templates. As a result, a complete data integration requires some extra data cleaning. The process being used to achieve this and to link all the excavation datasets is described.
Il centro degli interessi principali del debitore e il forum shopping tra regolamento (UE) 2015/848 e codice della crisi d’impresa e dell’insolvenza
Creators: name: Capozzolo, Michela
Publisher: name: Universita' degli Studi di Salerno
Year: 2021
Subjects: Cross-border insolvency proceedings
Centre of its main interests
Article 3(1) of Regulation No 2015/848
Forum shopping
Crisis and Insolvency Code

description: If the debtor has the center of main interests (COMI) in the EU Member State, the private international law profiles raised by an insolvency procedure are governed by regulation (EU) 2015/848. This Regulation contains some rules of safeguards aimed at preventing fraudulent or abusive forum shopping. The purpose of this work is to verify when the transfer of the registered office, the principal place of business and the habitual residence actually coincides with the transfer of the COMI and, when, instead, the change in location, integrates forum shopping phenomena. The study was also conducted in relation to the Crisis and Insolvency Code.
title: Ασυμπτωτική ανάλυση διεπιφανειακών ρωγμών
titleType: AlternativeTitle
title: Asymptotic analysis of interfacial cracks
Creators: name: Τσάρκα, Ντορίνα-Μαρία
Publisher: name: University of Thessaly
Year: 2007
Subjects: subject: ΡΩΓΜΕΣ -- ΜΗΧΑΝΙΚΗ
subject: ΑΝΤΟΧΗ ΤΩΝ ΥΛΙΚΩΝ

description: One of the most significant sources of failure in adhesive joints, thin films and composite materials is the propagation of interfacial cracks between the constituent materials. In the last few decades significant progress has been made towards the understanding of the mechanics of the interface crack within the framework of linear elasticity. The oscillatory character of the singular elastic crack-tip stress field and the coupling of the opening and shearing modes are important features that distinguish fracture mechanics from the mechanics of cracks in homogeneous media. The elasto-plastic analysis of the interface cracks has also attracted a lot of attention recently. In the context of this thesis an elastic-plastic asymptotic solution of the problem of a plane strain crack lying along the interface between an incompressible elastic-plastic powerlaw hardening material and a rigid substrate is developed. The elastoplastic asymptotic stress field expansion which is assumed to be separable in r and#, where (r,#) are polar coordinates at the crack tip, consists of two terms and is of the general form. The leading and second order terms in the stress and displacement field expansions are derived from the solution of two eigenvalue problems, non-linear and linear respectively. The elastoplastic asymptotic solution of the interfacial crack problem is studied via a perturbation of the elastic solution, i.e., for η = \ + ε where ε is a small parameter and n the strain hardening exponent. It is shown that both the leading and second order terms in the stress expansion are singular and branch from the mode-I and mode-II of the linear elastic solution respectively.
Interface-dependent magnetotransport properties for thin Pt films on ferrimagnetic Y3Fe5O12
Creators: name: Shiomi, Y.
name: Ohtani, T.
name: Iguchi, S.
name: Sasaki, T.
name: Qiu, Z.
name: Nakayama, H.
name: Uchida, K.
name: Saitoh, E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have studied magnetoresistance and Hall effects for 1.8-nm-thick Pt films grown on a ferrimagnetic insulator Y3Fe5O12 in a wide temperature (0.46-300 K) and magnetic-field (-15-15 T) region. In the low-temperature regime where quantum corrections to conductivity are observed, weak antilocalization behavior observed in Pt films is critically suppressed when the film is attached to Y3Fe5O12. Hall resistance in the Pt film is also affected by Y3Fe5O12, and it exhibits logarithmic temperature dependence in a broad temperature range. The magnetotransport properties in the high-field range are significantly influenced by the interface between Pt and Y3Fe5O12.
Style transfer and classification in hebrew news items
Creators: name: Weingarten, Nir
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.2.7; I.2.6

description: Hebrew is a Morphological rich language, making its modeling harder than simpler language. Recent developments such as Transformers in general and Bert in particular opened a path for Hebrew models that reach SOTA results, not falling short from other non-MRL languages. We explore the cutting edge in this field performing style transfer, text generation and classification over news articles collected from online archives. Furthermore, the news portals that feed our collective consciousness are an interesting corpus to study, as their analysis and tracing might reveal insights about our society and discourse.
description: Published at ISCOL2022 as a poster. For generated Hebrew fake news articles, visit https://www.why-net.net
When the speed of light slows down I notice
Creators: name: Bladzinski, Corey
Publisher: name: No Publisher Supplied
Year: 2016

description: This collection focuses on a character who suffers from Generalized Anxiety Disorder. It begins with the speaker experiencing dread when interacting with his environment. The collection develops when its speaker divides interior delusions and exterior actualities. This occurs when the speaker is engaged in relationships with others. The conclusion of this collection has the speaker transcend his flawed perception of reality.
title: Αναγνώριση ρωγμών σε κατασκευές με βέλτιστη τοποθέτηση αισθητήρων
titleType: AlternativeTitle
title: Crack identification in structures using optimal sensor locations
Creators: name: Γαϊτανάρος, Σταύρος
Publisher: name: University of Thessaly
Year: 2007
Subjects: subject: ΡΩΓΜΕΣ -- ΜΗΧΑΝΙΚΗ
subject: ΑΝΤΟΧΗ ΤΩΝ ΥΛΙΚΩΝ

description: A Bayesian system identification methodology is presented for estimating the crack location, size and orientation using strain measurements. The Bayesian statistical approach combines information from measured data and analytical or computational models of structural behavior to predict estimates of the crack characteristics along with the associated uncertainties, taking into account modeling and measurement errors. An optimal sensor location methodology is proposed to maximize the information that is contained in the measured data for crack identification problems. For this, the most informative, about the condition of the structure, data are obtained by minimizing the information entropy measure of the uncertainty in the model parameter estimates provided by the above statistical system identification method. Both crack identification and optimal sensor location formulations lead to highly non-convex optimization problems in which multiple local and global optima may exist. A hybrid optimization method based on evolutionary strategies and gradient based techniques is used to determine the global minimum. The effectiveness of the proposed methodologies is illustrated using simulated data from a single crack in a thin plate subjected to known and unknown static loading. The effects of modeling and measurement error on the effectiveness of the crack detection method, as well as the methodology’s limitations are investigated.
Willingness-to-Pay for and Welfare Analysis of Senior-Friendly Foods
Creators: name: Jin, Hyunjoung
name: Jin, Hyunjoung
Publisher: name: Unknown
Year: 2018
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Institutional and Behavioral Economics
subject: senior-friendly foods
subject: willingness-to-pay
subject: consumer welfare

description: Seniors need specially processed foods because of their vulnerable appetite. Their ability to take foods is relatively weak, which disturbs their nutritional balance. However, the food industry is reluctant to conduct research and development for senior-friendly foods due to the low income level of the elderly and uncertain market prospects. This study adopts a contingent valuation method to examine elderly people’s willingness-to-pay for various types of senior-friendly foods and related government services. Based on the results, expected welfare that could be generated through development of the senior-friendly food market in South Korea is derived. The magnitude of the estimated willingness-to-pay and expected welfare may provide the central government as well as the food industry with a motivation to involve in the senior-friendly food market in terms of product development and food policy.
title: Διαχείριση νερού στα ψυκτικά κυκλώματα του Χαλυβουργείου της Εταιρείας Sovel Α.Ε.
titleType: AlternativeTitle
Creators: name: Κατσινάρης, Ιωάννης
Publisher: name: University of Thessaly
Year: 2007
Subjects: subject: ΝΕΡΟ -- ΔΙΑΧΕΙΡΙΣΗ
subject: ΨΥΞΗ ΚΑΙ ΨΥΚΤΙΚΑ ΜΗΧΑΝΗΜΑΤΑ

description: Σε αυτήν την μεταπτυχιακή εργασία επιχειρείται ο εντοπισμός, η καταγραφή και η ερμηνεία των προβλημάτων διάβρωσης και επικαθίσεων που σχετίζονται με την λειτουργία των ψυκτικών κυκλωμάτων του Χαλυβουργείου της εταιρείας SOVEL Α.Ε. Από την διενέργεια των ισοζυγίων του νερού του Χαλυβουργείου αλλά και από τον προσδιορισμό της ποιότητάς του, διαπιστώνεται η ποσοτική και ποιοτική απόκλιση του από τις προδιαγραφές που έχει θέσει η κατασκευάστρια εταιρεία των κυκλωμάτων, Danieli. Κύρια αιτία για την ύπαρξη των αποκλίσεων αυτών θεωρείται η ποσοτική και ποιοτική ανεπάρκεια του φρέσκου νερού που τροφοδοτείται από τις υφιστάμενες γεωτρήσεις του εργοστασίου. Σε ένα μικρότερο βαθμό, το νερό αποκλίνει από τις ποιοτικές προδιαγραφές του και λόγω της αδυναμίας προεπεξεργασίας του από τον υφιστάμενο εξοπλισμό (αδυναμία παροχής 100% απαλκαλιωμένου νερού). Με την χρήση των απλών δεικτών κορεσμού (Langelier, Ryznar, Puckorius) αλλά και διάβρωσης (Larson - Skold) επιχειρείται η πρόβλεψη της τάσης των νερών του Χαλυβουργείου ως προς την διάβρωση ή τις επικαθίσεις ασβεστίτη. Τα νερά όλων των κυκλωμάτων παρουσιάζουν έντονη διαβρωτική τάση, που επιβεβαιώνεται και από τους «μάρτυρες» διάβρωσης, ενώ δεν παρουσιάζουν έντονες τάσεις για την δημιουργία επικαθίσεων ασβεστίτη. Τα αποτελέσματα αυτά επιβεβαιώθηκαν και με την χρήση του υπολογιστικού μοντέλου HYDRAQL, με το οποίο βρέθηκε ο βαθμός υπερκορεσμού του ασβεστίτη αλλά και άλλων κοινών τύπων καθαλατώσεων. Τέλος, με την βοήθεια μεταλλογραφικών αναλύσεων πάνω σε δοκίμια χάλυβα, που αποτελούσαν μέρος των ψυκτικών κυκλωμάτων του κλιβάνου του Χαλυβουργείου, επιχειρήθηκε ο εντοπισμός των αίτιων των ρωγμών που αυτά παρουσίασαν στις εξωτερικές τους επιφάνειες. Διαπιστώθηκε ότι για τις περιπτώσεις αυτές, η διάβρωση οφείλεται κυρίως σε εξωτερικούς παράγοντες και πιο συγκεκριμένα, στις αυξημένες θερμοκρασίες που επικρατούν και στην πιθανή χαμηλή ποιότητα του καυσίμου, που έχει σαν αποτέλεσμα την παραγωγή ιδιαιτέρως διαβρωτικών καυσαερίων.
Towards a more efficient computation of individual attribute and policy contribution for post-hoc explanation of cooperative multi-agent systems using Myerson values
Creators: name: Angelotti, Giorgio
name: Díaz-Rodríguez, Natalia
Publisher: name: arXiv
Year: 2022
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: A quantitative assessment of the global importance of an agent in a team is as valuable as gold for strategists, decision-makers, and sports coaches. Yet, retrieving this information is not trivial since in a cooperative task it is hard to isolate the performance of an individual from the one of the whole team. Moreover, it is not always clear the relationship between the role of an agent and his personal attributes. In this work we conceive an application of the Shapley analysis for studying the contribution of both agent policies and attributes, putting them on equal footing. Since the computational complexity is NP-hard and scales exponentially with the number of participants in a transferable utility coalitional game, we resort to exploiting a-priori knowledge about the rules of the game to constrain the relations between the participants over a graph. We hence propose a method to determine a Hierarchical Knowledge Graph of agents' policies and features in a Multi-Agent System. Assuming a simulator of the system is available, the graph structure allows to exploit dynamic programming to assess the importances in a much faster way. We test the proposed approach in a proof-of-case environment deploying both hardcoded policies and policies obtained via Deep Reinforcement Learning. The proposed paradigm is less computationally demanding than trivially computing the Shapley values and provides great insight not only into the importance of an agent in a team but also into the attributes needed to deploy the policy at its best.
description: Accepted for publication in Elsevier's Knowledge-Based Systems
Membrane Heating in Living Tissues Exposed to Nonthermal Pulsed EM Fields
Creators: name: Pierro, V.
name: De Vita, A.
name: Croce, R. P.
name: Pinto, I. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: A bio tissue model consisting of multilayer spherical cells including four nested radial domains (nucleus, nuclear membrane, cytoplasm and plasma membrane) is worked out to derive the cell heating dynamics in presence of membrane capacitance dispersion under pulsed electromagnetic exposure. Two possible cases of frequency-dependent membrana models are discussed: plasma and nuclear membranes are dispersive, only the nuclear memebrane is dispersive . In both models an high localized heating of the membranes occurs, without significant temperature rise in the cytoplasm and nucleoplasm.
description: 9 pages, 7 figures (preprint in piubblication on IEEE Transacton on Plasma Science)
Study of the structure and kinematics of the Galaxy according to VLBI astrometry of masers and radio stars
Creators: name: Bobylev, V. V.
name: Bajkova, A. T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In recent years, radio interferometric observations have achieved high accuracy in determining the absolute values of trigonometric parallaxes and proper motions of maser radiation sources and radio stars. The error in determining the trigonometric parallaxes of these objects averages about 10 microarcseconds, which allows us to confidently study the geometric and kinematic properties of the distribution of stars located at great distances from the Sun, up to the center of the Galaxy. This article provides an overview of the main results of studying the structure and kinematics of the Galaxy, which were obtained by various scientific teams using VLBI observations of masers and radio stars. The main attention is paid to the results of studying the Galaxy obtained by the authors of this work.
description: 22 pages, 11 figures. Accepted for publication in IzvPulkovo (ISSN 0367-7966) Issue 227
Charged Taub-NUT-de Sitter spacetime in DGP braneworld and its thermodynamics
Creators: name: Siahaan, Haryanto M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study a charged Taub-NUT spacetime solution in the DGP brane. We show that the Reissner-Nordstrom-Taub-NUT-de Sitter solution of Einstein-Maxwell gravity solves the corresponding equations of motion, where the cosmological constant is related to the cross-over scale in the DGP model. Following the approach by Teitelboim in discussing the thermodynamics of de Sitter spacetime and the proposal by Wu et al. for a conserved charge associated to the NUT parameter, we obtained the generalized Smarr mass formula and the first law of thermodynamics of the spacetime.
description: 16 pages, no figure. To be published in Chinese Physics C
Syzygies of Jacobian ideals and weighted homogeneous singularities
Creators: name: Dimca, Alexandru
name: Sticlaru, Gabriel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics

description: Let $V$ be a projective hypersurface having only isolated singularities. We show that these singularities are weighted homogeneous if and only if the Koszul syzygies among the partial derivatives of an equation for $V$ are exactly the syzygies with a generic first component vanishing on the singular locus subscheme of $V$. This yields in particular a positive answer in this setting to a question raised by Morihiko Saito and the first author. Finally we explain how our result can be used to improve the listing of Jacobian syzygies of a given degree by a computer algebra system such as Singular, CoCoA or Macaulay2.
description: version 2: presentation of results slightly modified due to the addition a key reference by L. Bus\'e and J.-P. Jouanolou
Hidden conformal symmetry and pair production near the cosmological horizon in Kerr-Newman-Taub-NUT-de Sitter spacetime
Creators: name: Siahaan, Haryanto M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that the study of hidden conformal symmetry that associates to the Kerr/CFT correspondence can also apply to the cosmological horizon in Kerr-Newman-Taub-NUT-de Sitter spacetime. This symmetry allows one to employ some two dimensional conformal field theory methods to understand the properties of the cosmological horizon. The entropy can be understood by using the Cardy formula, and the equation for scattering process in the near region has an agreement with the one obtained from a two point function in two dimensional conformal field theory. We also show that pair production can occur near the cosmological horizon in Kerr-Newman-Taub-NUT-de Sitter for near extremal conditions.
description: 20 pages, 5 figures. To be published in Chinese Physics C
Ion-momentum imaging of dissociative electron attachment dynamics in acetylene
Creators: name: Fogle, M.
name: Haxton, D. J.
name: Landers, A. L.
name: Orel, A. E.
name: Rescigno, T. N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present experimental results for dissociative electron attachment to acetylene near the 3 eV $^2Π_g$ resonance. In particular, we use an ion-momentum imaging technique to investigate the dissociation channel leading to C$_2$H$^-$ fragments. From our measured ion-momentum results we extract fragment kinetic energy and angular distributions. We directly observe a significant dissociation bending dynamic associated with the formation of the transitory negative ion. In modeling this bending dynamic with \emph{ab initio} electronic structure and fixed-nuclei scattering calculations we obtain good agreement with the experiment.
Controllo e misure alternative: la rete di partenariato della giustizia
Creators: name: Gaita, Annamaria
Publisher: name: Universita degli studi di Salerno
Year: 2016
Subjects: subject: SECS-P/01 ECONOMIA POLITICA
subject: Controllo
subject: Misure alternative
subject: Rieducazione

description: 2014 - 2015
description: The purpose of the work is to analyze a field not much explored by the Italian social research: the role of the probation service –so of the Office of External Penal Execution (UEPE)– within the partnership networks. It is a kind of office introduced in our legal system after the entry into force of the law 354/75, according to which the penalty applied should not longer take place inside the prison, but directly in the territory, through the identification of treatment pathways aimed to the rehabilitation and re-integration of the convicts, while respecting the principle of individualization of the treatment. It is in this renewed reading of the penitentiary system that emerges the importance of UEPE, that, as defined by law 118 DPR 230/00, must be integrated with the local territory through the socalled networking, in order to carry out the treatment in an external environment, involving local participants and institutions of Justice. It is on these bases that empirical research conducted at the UEPE Salerno is developed, through which it has been possible to analyze the network of partnership created between 2009 and 2014 and the role of UEPE within it. It has also been possible to study the opinions of people in charge–the director and social workers– about the Italian penitentiary policies. In this way it is possible to trace the role of UEPE in the light of the new legislation and understand how, according to the specialists, the partnership networks created can help for rehabilitation and reintegration. [edited by Author]