cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Impact of Social Media on Body Language and Fitness Practices among Teenagers
Creators: name: Rahul Dev Choudhury, Priyanshu Prabal Dutta, Sukanta Ch Nath, Nilakhi Saikia
Publisher: name: Zenodo
Year: 2024

description: The increasing presence of social media in adolescents' lives has prompted considerable concern regarding its effects on their body image and fitness habits. This research investigates the connection between social media use and changes in body language and fitness behaviors among teenagers aged 15 to 17 in the Duliajan region of Assam. Data was collected through a structured questionnaire based on a 5-point Likert scale, with 40 participants randomly selected for the study. The primary objective is to examine how exposure to idealized representations on social media impacts adolescents' non-verbal communication, self-image, and engagement in fitness activities. Furthermore, the study evaluates the psychological impact of social media on teenagers' body image, self-esteem, and the potential development of unhealthy behaviors. These findings hold value for parents, educators, and policymakers by offering insights into the complex interaction between digital media and adolescent behavior, which can aid in promoting a healthier body image and balanced fitness routines. The research also provides a foundation for addressing increasing concerns related to body image anxiety among teenagers. By educating adolescents about the influence of social media, the study seeks to equip them with the knowledge needed to make informed decisions regarding their body image and fitness, fostering a healthier relationship with both themselves and the digital environment.
Lunar dust characterization by polarimetric signature. I. Negative polarization branch of sphere aggregates of various porosities
Creators: name: Richard, D. T.
name: Davis, S. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Context. In support of NASA's exploration program and the return to the Moon, the polarimetric signature of dispersed individual Lunar regolith dust grains is studied to enable the characterization of the dust exopsheric environment by remote, in-situ, and standoff sensing. Aims. We explore the value of the negative polarization branch (NPB) as a signature for characterizing individual grains to determine if it can be used in the same way as for surfaces of planets and atmosphereless bodies. Results. Calculations show that polarization phase curves for spherical grains exhibit a sharp transition over a narrow range of size parameter between two distinct regimes, one typical of Rayleigh scattering and another dominated by a large NPB. The linear polarimetric signature observed for aggregates is a composite of a) the polarization induced by individual grains composing the aggregate and b) the polarization due to the aggregate as a whole dust grain. The weight of each component varies depending on the porosity of the aggregate. An NPB similar to the one observed for atmosphereless astronomical bodies is present for different ranges of the size parameter depending on the value of the porosity. It appears as a remnant of the negative branch exhibited by the single spherical grains. The sharper, narrow negative branch that is measured for some granular surfaces in the laboratory or seen in astronomical observations is not observed here.
description: 7 pages, 8 figures, accepted for publication in Astronomy & Astrophysics
Διπλωματικές επαφές των πρώτων Κομνηνών με το πριγκιπάτο της Αντιόχειας:
Creators: name: Μισιρλόγλου, Σεραφείμ Αλέξανδρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Κομνηνοί
Αντιόχεια
Διπλωματία
Σταυροφορίες
Komnenoi
Antioch
Diplomacy
Crusades

description: Σκοπός της εργασίας είναι η καταγραφή των επιδιώξεων και μεθόδων της διπλωματίας των τριών πρώτων Κομνηνών αυτοκρατόρων, όπως αυτές εκδηλώθηκαν στις βυζαντινές διπλωματικές επαφές με το σταυροφορικό πριγκιπάτο της Αντιόχειας, έως το 1165. Τότε είναι που γίνεται αισθητή μια δραματική αύξηση της επιρροής του βυζαντινού ηγεμόνα πάνω στην Λατινική Ανατολή και ιδίως στο εν λόγω πριγκιπάτο. Στη μεθοδολογία της έρευνας προτιμήθηκε η χρονική σειρά παρουσίασης των γεγονότων κατά αυτοκράτορα, σε συνάρτηση φυσικά με την αξιολόγηση των σχετικών αφηγηματικών πηγών της περιόδου (βυζαντινές και δυτικές) και των διατυπωμένων θέσεων των ιστορικών ερευνητών επί του θέματος. Συνολικά η εργασία, χωρίς να αποκλείει τη σημασία πραγματιστικών παραγόντων, όπως η οικονομία, η διεθνής κατάσταση κλπ, επιχειρηματολογεί υπέρ της θέσης όσων ερευνητών εντοπίζουν στην αυτοκρατορική ιδεολογία των Βυζαντινών έναν καίριο παράγοντα που διατρέχει τη διπλωματία των Κομνηνών, προσδίδοντας της το χαρακτηριστικό της συνέχειας.
description: The focus of the present dissertation is drawn on the matters pertaining to the diplomatic objectives and policies related thereto and implemented by the first three Komnenoi Byzantine Emperors for the purpose of maintaining the imperial foreign relations with the Crusader Principality of Antioch up to 1165, a time when the influence of the Byzantine Emperor increased markedly over the Latin East and especially on the latter principality. Events are traced by chronological order in tandem with appraising their historical significance, as accounted in the pertinent Byzantine and Latin narrative sources and evaluated accordingly by modern historians. Whilst the impact of such factors as economic imperatives and the broader international circumstance of the time is not to be ignored, it is, in the author’s view, the unfaltering sense of continuity observable in the Byzantine imperial ideology wherein the primary force lies as far as the formulation of these objectives and application of said policies are concerned.
Multi-user interface for group ranking: a user-centered approach
Creators: name: Luk, Wai-Lan
Publisher: name: University of British Columbia
Year: 2009

description: The proliferation of collaborative computer applications in the past decade has resulted in a corresponding increase in the need for multi-user interfaces. The current research seeks to contribute to the design of a user-centered multi-user interface for a group ranking task. User requirements were identified by observing groups perform the ranking task in a non-computer environment. A design was proposed based on these identified requirements. The user-centered design was compared to preliminary designs based on the intuitions of programmers. The conclusions indicate that an analysis of observations in the non-computer environment does yield insight beyond the initial intuition of programmers. A prototype based on the user-centered design was implemented. Informal user evaluation was performed by observing users working with the prototype and obtaining verbal feedback both on the ease of use of the system and on possible improvements. The informal user evaluation provides evidence for the usefulness of user-centered design. The evaluation also suggests that not all features identified were found useful and not all features necessary were identified.
Hadron Optics: Diffraction Patterns in Deeply Virtual Compton Scattering
Creators: name: Brodsky, S. J.
name: Chakrabarti, D.
name: Harindranath, A.
name: Mukherjee, A.
name: Vary, J. P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the Fourier transform of the Deeply Virtual Compton Scattering (DVCS) amplitude with respect to the skewness variable $ζ$ at fixed invariant momentum transfer squared $t$ provides a unique way to visualize the structure of the target hadron in the boost-invariant longitudinal coordinate space. The results are analogous to the diffractive scattering of a wave in optics. As a specific example, we utilize the quantum fluctuations of a fermion state at one loop in QED to obtain the behavior of the DVCS amplitude for electron-photon scattering. We then simulate the wavefunctions for a hadron by differentiating the above LFWFs with respect to $M^2$ and study the corresponding DVCS amplitudes in light-front longitudinal space. In both cases we observe that the diffractive patterns in the longitudinal variable conjugate to $ζ$ sharpen and the positions of the first minima move in with increasing momentum transfer. For fixed $t$, higher minima appear at positions which are integral multiples of the lowest minimum. Both these observations strongly support the analogy with diffraction in optics.
description: Some plots modified, clarifications and references added
The Distribution of Recoil Velocities from Merging Black Holes
Creators: name: Schnittman, Jeremy D.
name: Buonanno, Alessandra
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We calculate the linear momentum flux from merging black holes (BHs) with arbitrary masses and spin orientations, using the effective-one-body (EOB) model. This model includes an analytic description of the inspiral phase, a short merger, and a superposition of exponentially damped quasi-normal ringdown modes of a Kerr BH. By varying the matching point between inspiral and ringdown, we can estimate the systematic errors generated with this method. Within these confidence limits, we find close agreement with previously reported results from numerical relativity. Using a Monte Carlo implementation of the EOB model, we are able to sample a large volume of BH parameter space and estimate the distribution of recoil velocities. For a range of mass ratios 1 <= m_1/m_2 <= 10, spin magnitudes of a_{1,2}=0.9, and uniform random spin orientations, we find that a fraction f_{500}=0.12^{+0.06}_{-0.05} of binaries have recoil velocities greater than 500 km/s and f_{1000}=0.027^{+0.021}_{-0.014} have kicks greater than 1000 km/s. These velocities likely are capable of ejecting the final BH from its host galaxy. Limiting the sample to comparable-mass binaries with m_1/m_2 <= 4, the typical kicks are even larger, with f_{500}=0.31_{-0.12}^{+0.13} and f_{1000}=0.079^{+0.062}_{-0.042}.
description: 4 pages, 5 figures, submitted to ApJL; v2: improved Eqn (3) and related discussion
Οι συμβάσεις παραχώρησης δημοσίων έργων και υπηρεσιών στο δίκαιο της Ευρωπαϊκής Ένωσης και το εθνικό δίκαιο
Creators: name: Σιστάκου, Ελευθερία Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: δημόσιες συμβάσεις
συμβάσεις παραχώρησης
ευρωπαϊκό δίκαιο
concessions
public works
Community law

description: Σκοπός της διπλωματικής ήταν η κατά το δυνατόν σαφής και περιεκτική παρουσίαση και ανάλυση των συμβάσεων παραχώρησης δημοσίων έργων και υπηρεσιών, όπως αυτές αναπτύχθηκαν και εξελίχθηκαν στο πλαίσιο του δικαίου της Ευρωπαϊκής Ένωσης. Κατά την ανάλυση των εννοιών της σύμβασης παραχώρησης έργων και της σύμβασης παραχώρησης υπηρεσιών γίνεται αναφορά στους κανόνες που τις διέπουν και στις μεταξύ τους διαφορές, στα στοιχεία που τις διαφοροποιούν από συναφείς τύπους συμβάσεων και επιγραμματικά στις επιμέρους έννοιες που τις συνθέτουν καθώς επίσης και στα χαρακτηριστικά και τον τρόπο λειτουργίας τους. Ιδιαίτερη βαρύτητα έχει δοθεί στην παρουσίαση της σχετικής νομολογίας του ΔΕΕ λόγω της εξαιρετικής συμβολής της στην ερμηνεία και αποσαφήνιση του ιδιαίτερα πολύπλοκου αυτού τύπου συμβάσεων. Επίσης γίνεται αναφορά στη ρύθμισή τους από το εθνικό δίκαιο καθώς και στον τρόπο που οι υπόψη συμβάσεις αντιμετωπίστηκαν από τα ελληνικά δικαστήρια. Στον επίλογο τίθεται μία σειρά προβληματισμών με αφορμή την πρόταση της Επιτροπής για μία νέα οδηγία σχετικά με την ανάθεση των συμβάσεων παραχώρησης και, σε εθνικό επίπεδο, τη δημιουργία της Ενιαίας Ανεξάρτητης Αρχής Δημοσίων Συμβάσεων σε σχέση και με τη δυσμενή διεθνή και εθνική οικονομική συγκυρία.
description: The aim of the present thesis was the presentation and analysis of public works and service concessions as developed and evolved under Community law, in the clearest and most comprehensive way possible. The concepts of works and service concessions are analyzed in reference to the norms that govern them, the points which differentiate them from similar types of contracts as well as to their individual concepts, features and procedures. A major emphasis is placed on the relevant ECJ jurisdiction due to its significant role and exceptional contribution to the interpretation and clarification of this extremely complex type of contracts. Furthermore, a reference is made to their regulation by the national law and the way these contracts were handled by the Greek courts. The epilogue sets a series of questions in regard to the Commission's proposal for a new directive on the award of concessions and, at national level, to the introduction of a new Independent Authority for Public Contracts in relation to the current unfavorable international and national economic conditions.
The radial acceleration relation in a $Λ$CDM universe
Creators: name: Paranjape, Aseem
name: Sheth, Ravi K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the radial acceleration relation (RAR) between the total ($a_{\rm tot}$) and baryonic ($a_{\rm bary}$) centripetal acceleration profiles of central galaxies in the cold dark matter (CDM) paradigm. We analytically show that the RAR is intimately connected with the physics of the quasi-adiabatic relaxation of dark matter in the presence of baryons in deep potential wells. This cleanly demonstrates how the mean RAR and its scatter emerge in the low-acceleration regime ($10^{-12}\,{\rm m\,s}^{-2}\lesssim a_{\rm bary}\lesssim10^{-10}\,{\rm m\,s}^{-2}$) from an interplay between baryonic feedback processes and the distribution of CDM in dark halos. Our framework allows us to go further and study both higher and lower accelerations in detail, using analytical approximations and a realistic mock catalog of $\sim342,000$ low-redshift central galaxies with $M_r\leq-19$. We show that, while the RAR in the baryon-dominated, high-acceleration regime ($a_{\rm bary}\gtrsim10^{-10}\,{\rm m\,s}^{-2}$) is very sensitive to details of the relaxation physics, a simple `baryonification' prescription matching the relaxation results of hydrodynamical CDM simulations is remarkably successful in reproducing the observed RAR without any tuning. And in the (currently unobserved) ultra-low-acceleration regime ($a_{\rm bary}\lesssim 10^{-12}\,{\rm m\,s}^{-2}$), the RAR is sensitive to the abundance of diffuse gas in the halo outskirts, with our default model predicting a distinctive break from a simple power-law-like relation for HI-deficient, diffuse gas-rich centrals. Our mocks also show that the RAR provides more robust, testable predictions of the $Λ$CDM paradigm at galactic scales, with implications for alternative gravity theories, than the baryonic Tully-Fisher relation.
description: 20 pages, 16 figures; v2 - added discussion, clarifications and references, conclusions unchanged, accepted in MNRAS
Formation and growth of clusters in colloidal suspensions
Creators: name: Hecht, Martin
name: Harting, Jens
name: Herrmann, Hans J.
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: Depending on the pH value and salt concentration of Al2O3 suspensions different microstructures can form. Especially the clustered one is of major interest for industrial purposes as found in the production of ceramics. In this paper we investigate the clustered microstructure by means of a coupled Stochastic Rotation Dynamics (SRD) and Molecular Dynamics (MD) simulation. In order to gain statistics within a system containing numerous clusters, large simulation volumes are needed. We present our parallel implementation of the simulation algorithm as well as a newly developed cluster detection and tracking algorithm. We then show first results of measured growth rates and cluster size distributions to validate the applicability of our method.
description: 10 pages, 3 figures
PATTERNS OF ACCUMULATION OF MODERN CONTINENTAL HALOGEN PRECIPITATION
Creators: name: Sharipov, Sh.F.
name: Mirzaev, B.A.
name: Kurbonov, A.V.
Publisher: name: Zenodo
Year: 2024

description: Having considered the geochemical cycles of the salt components of continental halogenation at the stages of their mobilization, migration and accumulation within the Aral catchment basin and the drainless regions of the continents of the Earth, we will focus below on the characteristics of the main patterns of modern evaporite sedimentation in continental conditions. Note that it is necessary to combine a number of specific conditions (natural factors) of salt accumulation.
Light dark matter, rare $B$ decays with missing energy in $L_μ-L_τ$ model with a scalar leptoquark
Creators: name: Singirala, Shivaramakrishna
name: Sahoo, Suchismita
name: Mohanta, Rukmani
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the phenomenology of light GeV-scale fermionic dark matter in $U(1)_{L_μ- L_τ}$ gauge extension of the Standard Model. Heavy neutral fermions alongside with a $S_1(\overline{3}$,$1$,$1/3$) scalar leptoquark and an inert scalar doublet are added to address the flavor anomalies and light neutrino mass respectively. The light gauge boson associated with $U(1)_{L_μ-L_τ}$ gauge group mediates dark to visible sector and helps to obtain the correct relic density. Aided with a colored scalar, we constrain the new model parameters by using the branching ratios of various $b \to sll$ and $b \to s γ$ decay processes as well as the lepton flavour non-universality observables $R_{K^{(*)}}$ and then show the implication on the branching ratios of some rare semileptonic $B \to (K^{(*)}, ϕ)+$ missing energy, processes.
description: 34 pages, 8 figures, version to appear in PRD
Well-posedness for the viscous shallow water equations in critical spaces
Creators: name: Chen, Qionglei
name: Miao, Changxing
name: Zhang, Zhifei
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q35

description: In this paper, we prove the existence and uniqueness of the solutions for the 2D viscous shallow water equations with low regularity assumptions on the initial data as well as the initial height bounded away from zero.
description: 32 pages
Covariant singularities in Quantum Field Theory and Quantum Gravity
Creators: name: Casadio, Roberto
name: Kamenshchik, Alexander
name: Kuntz, Iberê
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is rather well-known that spacetime singularities are not covariant under field redefinitions. A manifestly covariant approach to singularities in classical gravity was proposed in arXiv:2008.09387. In this paper, we start to extend this analysis to the quantum realm. We identify two types of covariant singularities in field space corresponding to geodesic incompleteness and ill-defined path integrals (hereby dubbed functional singularities). We argue that the former might not be harmful after all, whilst the latter makes all observables undefined. We show that the path-integral measure is regular in any four-dimensional theory of gravity without matter or in any theory in which gravity is either absent or treated semi-classically. This might suggest the absence of functional singularities in these cases, however it can only be confirmed with a thorough analysis, case by case, of the path integral. We provide a topological and model-independent classification of functional singularities using homotopy groups and we discuss examples of theories with and without such singularities.
description: Accepted for publication in Nucl. Phys. B
Betti number signatures of homogeneous Poisson point processes
Creators: name: Robins, Vanessa
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 60D05; 57M99

description: The Betti numbers are fundamental topological quantities that describe the k-dimensional connectivity of an object: B_0 is the number of connected components and B_k effectively counts the number of k-dimensional holes. Although they are appealing natural descriptors of shape, the higher-order Betti numbers are more difficult to compute than other measures and so have not previously been studied per se in the context of stochastic geometry or statistical physics. As a mathematically tractable model, we consider the expected Betti numbers per unit volume of Poisson-centred spheres with radius alpha. We present results from simulations and derive analytic expressions for the low intensity, small radius limits of Betti numbers in one, two, and three dimensions. The algorithms and analysis depend on alpha-shapes, a construction from computational geometry that deserves to be more widely known in the physics community.
description: Submitted to PRE. 11 pages, 10 figures
Functional form of unitary representations of the quantum "az+b" group
Creators: name: Pusz, W.
name: Sołtan, P. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 22D35, 46L89

description: The formula for all unitary representations of the quantum "az+b" group for a real deformation parameter is given. The description involves the quantum exponential function introduced by Woronowicz.
Parametric Resonance of Optically Trapped Aerosols
Creators: name: Di Leonardo, R.
name: Ruocco, G.
name: Leach, J.
name: Padgett, M. J.
name: Wright, A. J.
name: Girkin, J. M.
name: Burnham, D. R.
name: McGloin, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The Brownian dynamics of an optically trapped water droplet are investigated across the transition from over to under-damped oscillations. The spectrum of position fluctuations evolves from a Lorentzian shape typical of over-damped systems (beads in liquid solvents), to a damped harmonic oscillator spectrum showing a resonance peak. In this later under-damped regime, we excite parametric resonance by periodically modulating the trapping power at twice the resonant frequency. The power spectra of position fluctuations are in excellent agreement with the obtained analytical solutions of a parametrically modulated Langevin equation.
description: 5 pages, 4 figures
How random is your heart beat?
Creators: name: Urbanowicz, K.
name: Zebrowski, J. J.
name: Baranowski, R.
name: Holyst, J. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Medical Physics (physics.med-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: We measure the content of random uncorrelated noise in heart rate variability using a general method of noise level estimation using a coarse grained entropy. We show that usually - except for atrial fibrillation - the level of such noise is within 5 - 15% of the variance of the data and that the variability due to the linearly correlated processes is dominant in all cases analysed but atrial fibrillation. The nonlinear deterministic content of heart rate variability remains significant and may not be ignored.
description: see http://urbanowicz.org.pl
Scaling behavior of information entropy in explosive percolation transitions
Creators: name: Kang, Yejun
name: Cho, Young Sul
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: An explosive percolation transition is the abrupt emergence of a giant cluster at a threshold caused by a suppression of the growth of large clusters. In this paper, we consider the information entropy of the cluster size distribution, which is the probability distribution for the size of a randomly chosen cluster. It has been reported that information entropy does not reach its maximum at the threshold in explosive percolation models, a result seemingly contrary to other previous results that the cluster size distribution shows power-law behavior and the cluster size diversity (number of distinct cluster sizes) is maximum at the threshold. Here, we show that this phenomenon is due to that the scaling form of the cluster size distribution is given differently below and above the threshold. We also establish the scaling behaviors of the first and second derivatives of the information entropy near the threshold to explain why the first derivative has a negative minimum at the threshold and the second derivative diverges negatively (positively) at the left (right) limit of the threshold, as predicted through previous simulation.
description: 7 figures, published version
Economic instruments to control water quality degradation in the Lower Mainland
Creators: name: McAuley, Julie Anne
Publisher: name: University of British Columbia
Year: 2009

description: Nitrate pollution of ground and surface water can stem from the mismanagement and over-application of both inorganic and organic fertilizers. This results in the occurrence of non-point externalities, which infringe on the overall level of social welfare. Market based environmental policies, known as economic instruments, can be developed to curb the level of this non-point externality. Such policies directly affect the management decisions of agricultural producers, providing them with incentives to change their management practices. The overall objective of this study is to analyze an array of economic instruments which could feasibly curb water quality degradation resulting from the over-application and misuse of manure and inorganic fertilizers in agricultural production. The economic instruments are compared in terms of their relative effectiveness in decreasing nitrate water pollution and social damage. This thesis develops a three agent manure market model, wherein a vegetable producer and composter can purchase manure from a dairy producer or inorganic fertilizer from an exogenous fertilizer market. The production activities of each agent are modelled using real world production data. A non-linear programming technique is used. The imposition of a percentage manure tax was found to alter the vegetable producer’s derived demand for manure, and resulted in less manure being exchanged between the dairy and vegetable producers. The provisions of a percentage manure composting subsidy increased the quantity of manure demanded by the composter and decreased the amount of manure consumed by the vegetable and dairy producers. The imposition of an inorganic fertilizer tax increased the demands for manure fertilizer, as did the manure application limit. The effects on social damage are dependent on the leaching and surface run-off susceptibilities of each operation’s associated land base. The composting subsidy appeared to be the most efficient instrument for decreasing the overall level of social damage, when qualitatively analyzed. It induced decreases in the demand for manure by both the dairy and vegetable producers, while increasing the demand for manure of the composter. This results in an overall social benefit. There must be, however, financial justification for the implementation of such an instrument.
ISLOMIY MOLIYA INSTRUMENTI MUSHORAKANING IQTISODIY AMALIYOTLARGA TATBIQI
Creators: name: Nosirova, Fotima
Publisher: name: Academic Scientific Research
Year: 2024
Subjects: Islomiy moliya
Islom banklari
mushoraka
mushoraka bitimining ishlash tartibi
mushoraka shartnomasida foyda va zarar tushunchalari

description: Mazkur tezisda Islom banklari va nobank moliya tashkilotlari tomonidan qo`llanilib kelinayotgan islomiy moliya instrumentlaridan biri bo`lgan mushoraka amaliyoti mohiyati va uning ishlash tartibi haqida qisqacha ilmiy asos va xulosa keltirilgan. Bugungi kunda Islomiy moliya sohasi jadal sur`atlarda rivojlanyotganligi sababli islomiy moliya va islomiy banklar, xalqaro islomiy investitsiya fondlari mablag`larini mamlakatimiz iqtisodi rivoji uchun yo`naltirilishi albatta mamlakat va uning fuqarolari uchun ulkan imkoniyatlar beradi.
Generation Victoria (GenV) Cohort 2020s Synopsis
Creators: name: Wake, Melissa
name: KATHRYN NORTH
name: RICHARD SAFFERY
name: SHARON GOLDFELD
name: JIM BUTTERY
name: Asproloupos, Dino
name: Allen, Katie
name: Burgner, David
name: JOHN CARLIN
name: Cheong, Jeanie
name: Curtis, Nigel
name: Edwards, Ben
name: Hiscock, Harriet
name: ANNE-LOUISE PONSONBY
name: JOANNE SAID
name: KATRINA WILLIAMS
name: Siero, William
name: Hourani, Danah
name: Gulenc, Alisha
name: Hughes, Libby
Publisher: name: Murdoch Childrens Research Institute
Year: 2019
Subjects: Health Sciences
Biological Sciences
Social Science

description: The Generation Victoria (GenV) Cohort 2020s Synopsis is a 3-page summary of the aims, features, timeline and elements of GenV. It is a briefer version of the GenV Cohort 2020s Statement of Intent. This synopsis aims to outline succinctly the major elements of GenV including enrolment and informed consent, and collection of data and biosamples. This is version one and is correct to the best of our knowledge as of July 2019.
title: Motivations and barriers to help-seeking behaviours among female victims of intimate partner violence in Ghana
Creators: name: Rohn, Emmanuel
Publisher: name: Memorial University of Newfoundland
Year: 2021

description: Although a global menace, intimate partner violence (IPV), is very high in sub-Saharan Africa, including Ghana. Existing literature shows that the majority of Ghanaian women who experience IPV do not seek help but there is limited understanding of the motivations and barriers to Ghanaian women’s help-seeking behaviours from an individual and institutional perspective. This study used qualitative data from 30 women in three of Ghana’s 16 administrative regions (Ashanti, Upper East, and Greater Accra) to explore IPV victims’ experiences of help-seeking. Fifteen staff at the Domestic Violence and Victim Support Unit (DOVVSU) in the three selected regions were interviewed to explore the barriers to help-seeking from an institutional perspective. Results of the thematic analysis showed low reporting to formal support networks such as DOVVSU or the police, with higher preference for informal sources such as family members, friends, and religious and community leaders. Motivations to seek help included fatigue, severity of abuse, abusive partner’s negligence in honouring marital obligations, and trust in family members, friends, and religious leaders. Barriers to help-seeking included: fear of divorce, stigmatization, lack of trust in formal support channels, presence of children, sociocultural norms emphasizing gender role expectations, and family privacy. From an institutional perspective, barriers ranged from inadequate resources, including administrative and logistical support, to inadequately trained personnel, location of DOVVSU offices, lack of privacy at DOVVSU offices, and financial constraints. Findings from this study suggest the need for future interventions to take into account the complexity of factors associated with victims’ help-seeking decisions. Developing a multifaceted solution responsive to the needs of IPV victims involves addressing the various barriers identified in this study.
The envelope of holomorphy of a classical truncated tube domain
Creators: name: Jarnicki, Marek
name: Pflug, Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32D10, 32D15, 32D25

description: We present the envelope of holomorphy of a classical truncated tube domain.
Stochastically Induced Gamma-Ray Burst Wakefield Processes
Creators: name: Frederiksen, J. Trier
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a numerical study of Gamma-Ray Burst - Circumburst Medium interaction and plasma preconditioning via Compton scattering. The simulation tool employed is a unique hybrid model; it combines a highly parallelized (Vlasov) particle-in-cell approach with continuous weighting of particles and a sub-Debye Monte-Carlo binary particle interaction framework. These first results from 3D simulations with this new simulation tool, the PhotonPlasma code, suggests that magnetic fields and plasma density filaments are created in the wakefield of prompt gamma-ray bursts, and that the photon flux density gradient has a significant impact on particle acceleration in the burst head and wakefield. We discuss some possible implications of the circumburst medium preconditioning for the trailing afterglow, and also discuss which additional processes will be needed to improve future studies within this unique and powerful simulation framework.
description: 4 pages, 4 figures, accepted by Astrophyiscal Journal Letters. Rev.2: corrected figure colorbar units, shortened discussion, added references -- conclusions unchanged
Entropic entanglement criteria in phase space
Creators: name: Floerchinger, Stefan
name: Gärttner, Martin
name: Haas, Tobias
name: Stockdale, Oliver R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We derive entropic inseparability criteria for the phase space representation of quantum states. In contrast to criteria involving differential entropies of marginal phase space distributions, our criteria are based on a joint distribution known as the Husimi Q-distribution. This distribution is experimentally accessible in cold atoms, circuit QED architectures and photonic systems and bears practical advantages compared to the detection of marginals. We exemplify the strengths of our entropic approach by considering several classes of non-Gaussian states where second-order criteria fail. We show that our criteria certify entanglement in previously undetectable regions highlighting the strength of using the Husimi Q-distribution for entanglement detection.
description: 7 pages, 2 figures
Bigradient Phase Referencing
Creators: name: Doi, Akihiro
name: Fujisawa, Kenta
name: Habe, Asao
name: Honma, Mareki
name: Kawaguchi, Noriyuki
name: Kobayashi, Hideyuki
name: Murata, Yasuhiro
name: Omodaka, Toshihiro
name: Sudou, Hiroshi
name: Takaba, Hiroshi
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We propose bigradient phase referencing (BPR), a new radio-observation technique, and report its performance using the Japanese very-long-baseline-interferometry network (JVN). In this method, a weak source is detected by phase-referencing using a primary calibrator, in order to play a role as a secondary calibrator for phase-referencing to a weak target. We will be given the opportunity to select a calibrator from lots of milli-Jansky sources, one of which may be located at the position closer to the target. With such a smaller separation, high-quality phase-referencing can be achieved. Furthermore, a subsequent more-sophisticated calibration can relocate array's focus to a hypothetical point much closer to the target; a higher quality of phase referencing is available. Our demonstrative observations with strong radio sources have proved the capabilities of BPR in terms of image dynamic ranges and astrometric reproducibility. The image dynamic range on a target has been improved with a factor of about six compared to that of normal phase-referencing; the resultant position difference of target's emission between two epochs was only 62+-50 micro-arcsecond, even with less than 2300-km baselines at 8.4 GHz and fast-switching of a target-calibrator pair of a 2.1-degree separation.
description: 10 pages, 4 figures, accepted for publication in PASJ
Towards optomechanical parametric instabilities prediction in ground-based gravitational wave detectors
Creators: name: Cohen, David
name: Allocca, Annalisa
name: Bogaert, Gilles
name: Puppo, Paola
name: Jacqmin, Thibaut
name: Collaboration, Virgo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Increasing the laser power is essential to improve the sensitivity of interferometric gravitational wave detectors. However, optomechanical parametric instabilities can set a limit to that power. It is of major importance to understand and characterize the many parameters and effects that influence these instabilities. Here, we model with a high degree of precision the optical and mechanical modes that are involved in these parametric instabilities, such that our model can become predictive. As an example, we perform simulations for the Advanced Virgo interferometer (O3 configuration). In particular we compute mechanical modes losses by combining both on-site measurements and finite element analysis with unprecedented level of detail and accuracy. We also study the influence on optical modes and parametric gains of mirror finite size effects, and mirror deformations due to thermal absorption. We show that these effects play an important role if transverse optical modes of order higher than four are involved in the instability process.
3d Spinfoam Quantum Gravity: Matter as a Phase of the Group Field Theory
Creators: name: Fairbairn, Winston
name: Livine, Etera R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: An effective field theory for matter coupled to three-dimensional quantum gravity was recently derived in the context of spinfoam models in hep-th/0512113. In this paper, we show how this relates to group field theories and generalized matrix models. In the first part, we realize that the effective field theory can be recasted as a matrix model where couplings between matrices of different sizes can occur. In a second part, we provide a family of classical solutions to the three-dimensional group field theory. By studying perturbations around these solutions, we generate the dynamics of the effective field theory. We identify a particular case which leads to the action of hep-th/0512113 for a massive field living in a flat non-commutative space-time. The most general solutions lead to field theories with non-linear redefinitions of the momentum which we propose to interpret as living on curved space-times. We conclude by discussing the possible extension to four-dimensional spinfoam models.
description: 17 pages, revtex4, 1 figure
Impact of Participation in Performing Arts on Adolescent Health and Behaviour
Creators: name: Rupkumar Panda
Publisher: name: Zenodo
Year: 2024

description: This research investigates the impact of family dynamics and support on adolescents' engagement in performing arts. It aims to explore how emotional encouragement, financial support, and family expectations influence adolescents' participation in artistic activities. The study reveals that emotional support from family members is crucial for sustaining adolescents' motivation and commitment to performing arts. Consistent encouragement and recognition from families positively impact adolescents' perseverance and success in artistic endeavours. Financial support also plays a significant role, with families that invest in training and resources providing adolescents with better opportunities for development and performance. Additionally, balancing artistic pursuits with academic and familial responsibilities is influenced by family dynamics, with supportive families facilitating a more manageable integration of these commitments. The research also highlights the importance of practical support systems, such as mentoring and flexible scheduling, in helping adolescents navigate their dual commitments effectively. The study underscores the need for comprehensive support strategies to enhance adolescents' opportunities and overall well-being in their artistic pursuits.
Gauge theory in de Sitter space-time from a holographic model
Creators: name: Ghoroku, Kazuo
name: Ishihara, Masafumi
name: Nakamura, Akihiro
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Yang-Mills theory with flavor quarks in the dS${}_4$ is studied through the dual supergravity in the AdS${}_5\times S^5$ background with non-trivial dilaton and axion. The flavor quarks are introduced by embedding a probe D7 brane. We find that the dynamical properties of YM theory in the dS${}_4$ are similar to the case of the finite temperature theory given by the 5d AdS-Schwarzschild background. In the case of dS${}_4$, however, contrary to the finite temperature case, the gauge field condensate plays an important role on the dynamical properties of quarks. We also give the quark-antiquark potential and meson spectra to find possible quark-bound states. And we arrive at the conclusion that, while the quarks are not confined in the dS${}_4$, we could find stable meson states at very small cosmological constant as expected in the present universe. But there would be no hadrons at early universe as in the inflation era.
description: 22 pages, 23 figures (.eps)
M-theory and the birth of the Universe
Creators: name: Klinkhamer, F. R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this review article, we first discuss a possible regularization of the big bang curvature singularity of the standard Friedmann cosmology, where the curvature singularity is replaced by a spacetime defect. We then consider the hypothesis that a new physics phase gave rise to this particular spacetime defect. Specifically, we set out on an explorative calculation using the IIB matrix model, which has been proposed as a particular formulation of nonperturbative superstring theory (M-theory).
description: invited talk at the XXVIIth Cracow Epiphany Conference on the Future of Particle Physics, Cracow, Poland, January 7-10, 2021; v6: published version
Angle-resolved photoemission studies of lattice polaron formation in the cuprate Ca2CuO2Cl2
Creators: name: Shen, K. M.
name: Ronning, F.
name: Meevasana, W.
name: Lu, D. H.
name: Ingle, N. J. C.
name: Baumberger, F.
name: Lee, W. S.
name: Miller, L. L.
name: Kohsaka, Y.
name: Azuma, M.
name: Takano, M.
name: Takagi, H.
name: Shen, Z. X.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: To elucidate the nature of the single-particle excitations in the undoped parent cuprates, we have performed a detailed study of Ca2CuO2Cl2 using photoemission spectroscopy. The photoemission lineshapes of the lower Hubbard band are found to be well-described by a polaron model. By comparing the lineshape and temperature dependence of the lower Hubbard band with additional O 2p and Ca 3p states, we conclude that the dominant broadening mechanism arises from the interaction between the photohole and the lattice. The strength of this interaction was observed to be strongly anisotropic and may have important implications for the momentum dependence of the first doped hole states.
The Symmetric Teleparallel Gravity
Creators: name: Adak, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study symmetric teleparallel (STP) gravity model, in which only spacetime non-metricity is nonzero. First we obtain STP equivalent Einstein-Hilbert Lagrangian and give an approach for a generic solution in terms of only metric tensor. Then we obtain a spherically symmetric static solution to the Einstein's equation in STP space-time and discuss the singularities. Finally, we study a model given by a Lagrangian 4-form quadratic in non-metricity. Thus, we seek Schwarzschild-type solutions because of its observational success and obtain some sets of solutions. Finally, we discuss physical relevance of the solutions.
description: Paper presented at The 5th Workshop on Quantization, Dualities and Integrable Systems, Pamukkale University, 23-28 January 2006, Denizli, Turkey
Η επιμόρφωση των Ελλήνων εκπαιδευτικών στην Ομοσπονδιακή Δημοκρατία της Γερμανίας: το παράδειγμα του Βερολίνου
Creators: name: Κανέλλας, Γιώργος Αριστείδη
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Επιμόρφωση
Ομοσπονδιακή δημοκρατία της Γερμανίας- Βερολίνο
Ελληνόγλωσση εκπαίδευση
Further Education
Federal Republic of Germany- Berlin
Greek-based education

description: Στην παρούσα μεταπτυχιακή εργασία επιδιώκεται να καταγραφεί και να αναλυθεί σε ένα πρώτο επίπεδο η επιμόρφωση που δέχονται οι Έλληνες- ομογενείς και αποσπασμένοι- εκπαιδευτικοί στην Ομοσπονδιακή Δημοκρατία της Γερμανίας (ΟΔΓ), γενικότερα, και στο Kρατίδιο του Βερολίνου, ειδικότερα, και σε ένα ευρύτερο επίπεδο να παρουσιαστούν η κατάσταση και οι μορφές ελληνόγλωσσης εκπαίδευσης στο γερμανικό χώρο. Συγκεκριμένα, γίνονται αναφορές στο εκπαιδευτικό σύστημα της ΟΔΓ και του Kρατιδίου του Βερολίνου, με τις πρόσφατες αλλαγές που συντελέστηκαν, στα χαρακτηριστικά της επιμόρφωσης στα Κρατίδια της Έσσης, της Βάδης-Βυρτεμβέργης, της Βαυαρίας και του Βερολίνου καθώς και στα επιμορφωτικά προγράμματα που προσφέρθηκαν από το 2006 και εξής στους Έλληνες εκπαιδευτικούς στο Βερολίνο. Παρουσιάζονται, επίσης, οι διάφορες μορφές ελληνόγλωσσης εκπαίδευσης που υπάρχουν στην ΟΔΓ και στο Βερολίνο καθώς και διάφορες σκέψεις για τις μελλοντικές προοπτικές του θεσμού της επιμόρφωσης και της ελληνόγλωσσης εκπαίδευσης στην ΟΔΓ.
description: The aim of the present MA thesis is initially to record and examine the further education of the Greek educators in the Federal Republic of Germany, on a broader level, and in State of Berlin, specifically. Also, this thesis is trying to present the condition and the aspects of the Greek-based education in the country of Germany. Furthermore, some references are made to the educational system of Germany and the State of Berlin, based on the recent changes that occurred, the characteristics of the further education in the States of Hessen, Baden-Württemberg, Bayern and Berlin ∙ likewise the training programs are presented, that are offered since 2006 to the Greek educators in Berlin. Finally, it is mentioned the different aspects of the Greek-based education, that exists in Germany and Berlin, and some thoughts about the future prospects of the institutions of the further education and Greek-based education.
GRAPHICAL PROGRAMMING OF 2D APPLICATIONS IN C#
Creators: name: Shoyqulov, Shodmonkul
Publisher: name: Zenodo
Year: 2024

description: This article discusses the main frameworks for C# graphical programming, such as WPF and GDI+ for working with 2D graphics and user interfaces. Examples of using each tool are given and their capabilities and advantages are analyzed. Particular attention is paid to methods for optimizing C# graphical applications to improve performance and efficient use of resources. A comparative analysis of C# with other programming languages, including C++, Java and Python, is conducted from the point of view of graphical programming. Key aspects such as performance, ease of development and application in various fields are discussed. In conclusion, it is concluded that C# is a universal and powerful tool for developing graphical applications, capable of satisfying the requirements of both novice and experienced developers.