cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Coalescence Instability in Chromospheric Partially Ionised Plasmas
Creators: name: Murtas, Giulia
name: Hillier, Andrew
name: Snow, Ben
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Fast magnetic reconnection plays a fundamental role in driving explosive dynamics and heating in the solar chromosphere. The reconnection time scale of traditional models is shortened at the onset of the coalescence instability, which forms a turbulent reconnecting current sheet through plasmoid interaction. In this work we aim to investigate the role of partial ionisation on the development of fast reconnection through the study of the coalescence instability of plasmoids. Unlike the processes occurring in fully ionised coronal plasmas, relatively little is known about how fast reconnection develops in partially ionised plasmas of the chromosphere. We present 2.5D numerical simulations of coalescing plasmoids in a single fluid magnetohydrodynamic (MHD) model, and a two-fluid model of a partially ionised plasma (PIP). We find that in the PIP model, which has the same total density as the MHD model but an initial plasma density two orders of magnitude smaller, plasmoid coalescence is faster than the MHD case, following the faster thinning of the current sheet and secondary plasmoid dynamics. Secondary plasmoids form in the PIP model where the effective Lundquist number $S = 7.8 \cdot 10^3$, but are absent from the MHD case where $S = 9.7 \cdot 10^3$: these are responsible for a more violent reconnection. Secondary plasmoids also form in linearly stable conditions as a consequence of the non-linear dynamics of the neutrals in the inflow. In the light of these results we can affirm that two-fluid effects play a major role on the processes occurring in the solar chromosphere.
description: 22 pages, 22 figures, 1 table
Composite Dark Matter and its Charged Constituents
Creators: name: Belotsky, K. M.
name: Khlopov, M. Yu.
name: Shibaev, K. I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Stable charged heavy leptons and quarks can exist and hide in elusive atoms, bound by Coulomb attraction and playing the role of dark matter. However, in the expanding Universe it is not possible to recombine all the charged particles into such atoms, and the positively charged particles, which escape this recombination, bind with electrons in atoms of anomalous isotopes with pregalactic abundance, exceeding substantially the terrestrial upper limits. This abundance can not be reduced in the dense matter bodies, if negatively charged particles have charge -1. Therefore composite dark matter can involve only negatively charged particles with charge -2, while stable heavy particles with charge -1 should be excluded. Realistic scenarios of composite dark matter, avoiding this problem of anomalous isotope over-production, inevitably predict the existence of primordial "atoms", in which primordial helium traps all the free negatively charged heavy constituents with charge -2. Study of the possibility for such primordial heavy $α$ particle with compensated charge to exist as well as the search for the stable charged constituents in cosmic rays and accelerators provide crucial test for composite dark matter scenarios.
description: Latex, 8pages
Phases of granular segregation in a binary mixture
Creators: name: Reis, Pedro M.
name: Sykes, Tim
name: Mullin, Tom
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present results from an extensive experimental investigation into granular segregation of a shallow binary mixture in which particles are driven by frictional interactions with the surface of a vibrating horizontal tray. Three distinct phases of the mixture are established viz; binary gas (unsegregated), segregation liquid and segregation crystal. Their ranges of existence are mapped out as a function of the system's primary control parameters using a number of measures based on Voronoi tessellation. We study the associated transitions and show that segregation can be suppressed is the total filling fraction of the granular layer, $C$, is decreased below a critical value, $C_{c}$, or if the dimensionless acceleration of the driving, $γ$, is increased above a value $γ_{c}$.
description: 12 pages, 12 figures, submitted to Phys. Rev. E
The reorganization of insolvent business : a functional comparison of the Canadian and American models
Creators: name: Yamauchi, Keith D.
Publisher: name: University of British Columbia
Year: 2009

description: The business reorganization systems available to fmancially-distressed businesses in Canada are evolving into a system similar to that employed in the United States under Bankruptcy Reform Act of 1978 (Code). Business reorganizations have been an integral part of American commercial culture for almost a century. In Canada, business debtors may resort to the Companies’ Creditors Arrangement Act (CCAA) or the Bankruptcy and Insolvency Act (BIA), when seeking to reorganize their affairs. However, Canadian debtors use those systems sparingly. A primary objective of a business reorganization system is to balance the debtor’s rehabilitation efforts with the rights of creditors. This paper examines the Code and conducts a functional comparative analysis of certain aspects of the Canadian and American systems. The purpose of this examination is to detemiine whether the systems accomplish that objective and whether the Canadian systems could accomplish that objective more effectively by examining and incorporating aspects of other systems.This paper argues that the BL& neither encourages the debtor’s rehabilitation efforts nor treats creditors equitably. The primary reason for this shortcoming was the failure of the policymakers to consider the objectives of a business reorganization system. These policy objectives formed the foundation of the Code. As a result, the Code contains concepts that attempt to balance the interests of debtors and creditors and gives the courts the necessary flexibility to mould the concepts to achieve that balance. The CCAA provides little procedural or substantive guidance concerning its policy objectives. Accordingly, the courts have significant flexibility in applying its provisions. However, that flexibility also results in a lack predictability. The proposal provisions of the BIA must undergo significant changes before it becomes a workable business reorganization model. Further efforts at bankruptcy reform must include a thorough study of legislative and doctrinal aspects of systems other than those used domestically. This paper argues that Canadian policymakers could create a fair and equitable business reorganization system by using the concepts in the Code and those developed under the CCAA and by attempting to resolve shortcomings of those systems identified by the courts and commentators.
Flavor Changing Neutral Current Effects and CP Violation in the Minimal 3-3-1 Model
Creators: name: Promberger, Christoph
name: Schatt, Sebastian
name: Schwab, Felix
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate in detail the flavor structure of the minimal 331 model and its implications for several flavor changing neutral current (FCNC) processes. In this model, where the weak SU(2)_L gauge group of the Standard Model is extended to a SU(3)_L, the by far dominant new contributions come from an additional neutral Z' gauge boson, that can transmit FCNCs at tree-level. At the same time, electroweak precision observables receive new contributions only at the loop level and do not constrain the model very strongly. In our analysis, we take into account new CP violating effects that have been neglected in earlier analyses, and account for a general flavor structure without reference to a certain parameterization of the new mixing matrix. We begin by studying the bounds obtained from quantities such as Delta M_K, epsilon_K, Delta M_{d/s} as well as sin 2 beta|_{J/psi K_S}, and go on to explore the implications for several clean rare decay channels, namely the decays K+->pi+ nu nu, K_L -> pi0 nu nu, B_{d/s} -> mu+ mu- and K_L -> pi0 l+l-. We find sizeable effects in all these decays, but the most interesting quantity turns out to be the B_s - bar B_s mixing phase beta_s, as measured in the mixing induced CP asymmetry of B_s -> J/psi phi, which can be large. In general, we find effects in purely hadronic channels to be larger than in (semi-)leptonic ones, due to a suppression of the Z'-lepton couplings.
description: 29 pages, 11 figures, Some Comments and References added, version to appear in Phys Rev D
Διαμόρφωση πολιτικής και εφαρμογή μέτρων για τη μείωση του αποτυπώματος CO2. Μέλέτη εφαρμογής, σχέδιο δράσης αειφόρου ανάπτυξης δήμου.
Creators: name: Κακογιάννης, Νικόλαος Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Περιβαλλοντική Πολιτική
Εκπομπές Διοξειδίου του άνθρακα
Σχέδιο Δράσης Δήμου
Environmental Policy
CO2 Emmisions
Measurements Implementation

description: Ο παγκόσμιος στόχος για τη μείωση των εκπομπών CO2 γίνεται όλο και πιο σημαντικός. Τα επαναλαμβανόμενα ακραία περιβαλλοντικά φαινόμενα έχουν παρακινήσει όλο και περισσότερους ανθρώπους και κυβερνήσεις να αναλάβουν πρωτοβουλίες για τη μείωση του αποτυπώματος CO2 των δήμων, χωρών και κοινωνιών. Ο δύσκολος στόχος για την υπονόμευση της περιβαλλοντικής συνείδησης και του επιχειρηματικού κέρδους είναι μία από τις πιο ενδιαφέρουσες προκλήσεις της πολιτικής ηγεσίας. Στην παρούσα εργασία, στο μέρος Α θα παρουσιαστούν οι ευρωπαϊκές τάσεις στην χάραξη πολιτικής για τη μείωση του αποτυπώματος CO2 λαμβάνοντας υπόψη τις κοινωνικές, οικονομικές και περιβαλλοντικές παραμέτρους. Στο Μέρος Β (Μέρος 2 και Μέρος 3) θα παρουσιαστεί ένα πλήρες Σχέδιο Δράσης σε έναν Ελληνικό Δήμο προκειμένου να επιτευχθεί μείωση 20% των εκπομπών CO2 σύμφωνα με το Ευρωπαϊκό Σύμφωνο των Δημάρχων και τους Ευρωπαϊκούς Κανονισμούς. Τα δεδομένα αναφέρονται σε πραγματική πόλη της Αττικής ενώ οι προβλέψεις απόδοσης των μέτρων μείωσης του αποτυπώματος CO2 έχουν πραγματοποιηθεί με τις αποδεκτές μεθόδους του Ευρωπαϊκού Συμφώνου Δημάρχων
description: The global goal of reducing CO2 emissions is becoming increasingly important. Repeated extreme environmental phenomena has prompted more and more people and governments to take initiatives to reduce the CO2 footprint of municipalities, countries and societies. The difficult task of undermining environmental consciousness and business profit is one of the most challenging challenges of political leadership. In this present dissertation, at Part A is presented the European trends in policy-making to reduce CO2 footprint, taking into account social, economic and environmental considerations. In Part B (Part 2 and Part 3), a full Action Plan will be presented applied to a Greek municipality in order to achieve a 20% reduction in CO2 emissions in line with the European Covenant of Mayors and the European Regulations. The data refers to a real city of Attica while the projections for the performance of CO2 footprint reduction measures have been made with the accepted methods of the European Covenant of Mayors
Distribution of local density of states in superstatistical random matrix theory
Creators: name: Abul-Magd, A. Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We expose an interesting connection between the distribution of local spectral density of states arising in the theory of disordered systems and the notion of superstatistics introduced by Beck and Cohen and recently incorporated in random matrix theory. The latter represents the matrix-element joint probability density function as an average of the corresponding quantity in the standard random-matrix theory over a distribution of level densities. We show that this distribution is in reasonable agreement with the numerical calculation for a disordered wire, which suggests to use the results of theory of disordered conductors in estimating the parameter distribution of the superstatistical random-matrix ensemble.
description: 13 pages, 3 figures
Neues zur Wasserversorgung des römischen Köln. Vorbericht über die Einzeluntersuchungen der letzten Jahre
Creators: name: Haberey, Waldemar
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Bonner Jahrbücher, Bd. 155/156, 1.1955/1956: Bonner Jahrbücher
High-precision determination of the electric and magnetic radius of the proton
Creators: name: Lin, Yong-Hui
name: Hammer, Hans-Werner
name: Meißner, Ulf-G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using dispersion theory with an improved description of the two-pion continuum based on the precise Roy-Steiner analysis of pion-nucleon scattering, we analyze recent data from electron-proton scattering. This allows for a high-precision determination of the electric and magnetic radius of the proton, $r_E = (0.838^{+0.005}_{-0.004}{}^{+0.004}_{-0.003})\,$fm and $r_M = (0.847\pm{0.004}\pm{0.004})\,$fm, where the first error refers to the fitting procedure using bootstrap and the data while the second one refers to the systematic uncertainty related to the underlying spectral functions.
description: 8 pages, 2 figures, more discussions and references added, version accepted for publication in Physics Letters B
Elicitação lexical com Luíz Tamuxi
Creators: name: Tamuxi, Luiz
name: Bardagil Mas, Bernat
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: Manoki language

description: Uma sessão de elicitacão de léxico com Luíz Tamuxi.
A brief session of lexical elicitation with Luíz Tamuxi.
Zwanziger's pairwise little group on the celestial sphere
Creators: name: Lippstreu, Luke
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We generalize Zwanziger's pairwise little group to include a boost subgroup. We do so by working in the celestial sphere representation of scattering amplitudes. We propose that due to late time soft photon and graviton exchanges, matter particles in the asymptotic states in massless QED and gravity transform under the Poincare group with an additional pair of pairwise celestial representations for each pair of matter particles. We demonstrate that the massless abelian and gravitational exponentiation theorems are consistent with the proposed pairwise Poincare transformation properties. For massless QED we demonstrate that our results are consistent with the effects of the Faddeev-Kulish dressing and the abelian exponentiation theorem for celestial amplitudes found in [2012.04208]. We discuss electric and magnetic charges simultaneously as it is especially natural to do so in this formalism.
description: Clarifying comments added in sections 4 and 5
Holocephali
Creators: name: Brignon, Arnaud
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Holocephali

description: Holocephali
 Les chimères (Holocephali, Chimaeroidei) ne sont représentées dans la faune kimméridgienne de Fumel que par une unique épine dorsale décrite par Sauvage (Fig. 15B) qui n’a pas pu être retrouvée dans les collections du MBA. Cette épine, que Sauvage attribua au genre Ischyodus Egerton, 1843, est recourbée postérieurement et porte des stries longitudinales peu marquées. Selon Sauvage, elle est aplatie latéralement et son bord postérieur présente un sillon et deux rangées de tubercules rapprochés, lisses et recourbées vers le bas. D’après la photographie donnée par Sauvage, ce spécimen présente des affinités avec les épines de chimères trouvées dans le Kimméridgien supérieur de Suisse attribuée à Ischyodus quenstedti Wagner, 1857, une identification fondée sur leur association avec des plaques dentaires appartenant à cette espèce (Leuzinger et al. 2017a, b). Le peu d’éléments diagnostiques offerts par l’épine isolée présentée par Sauvage, de surcroît aujourd’hui perdue, ne permet cependant pas une assignation spécifique précise. L’identification à Ischyodus sp. en nomenclature ouverte (Sigovini et al. 2016) proposée par Sauvage pour ce spécimen est donc conservée ici.
description: Published as part of Brignon, Arnaud, 2023, Les vertébrés du Kimméridgien supérieur de Fumel (Lot-et-Garonne, France) dans la collection Jacques-Ludomir Combes (1824 - 1892), pp. 55-126 in Geodiversitas 45 (2) on page 76, DOI: 10.5252/geodiversitas2023v45a2, http://zenodo.org/record/7696962
Investigating the tetraquark structure of the new mesons
Creators: name: Nielsen, M.
name: Navarra, F. S.
name: Bracco, M. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using the QCD sum rule approach we investigate the possible four-quark structure of the recently observed mesons $D_{sJ}^{+}(2317)$, firstly observed by BaBaR, X(3872), firstly observed by BELLE and $D_0^{*0}(2308)$ observed by BELLE. We use diquark-antidiquark currents and work in full QCD, without relying on $1/m_c$ expansion. Our results indicate that a four-quark structure is acceptable for these mesons.
description: 4 pages 1 eps figure, proceedings of the XVIII Workshop on Hadronic Interactions (RETINHA-18) Sao Paulo-SP
Quantum rotations of nanoparticles
Creators: name: Stickler, Benjamin A.
name: Hornberger, Klaus
name: Kim, M. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Rotations of microscale rigid bodies exhibit pronounced quantum phenomena that do not exist for their center-of-mass motion. By levitating nanoparticles in ultra-high vacuum, researchers are developing a promising platform for observing and exploiting these quantum effects in an unexplored mass and size regime. Recent experimental and theoretical breakthroughs demonstrate exquisite control of nanoscale rotations, setting the stage for the first table-top tests of rotational superpositions and for the next generation of ultra-precise torque sensors. Here, we review the experimental state of the art and discuss promising routes towards macroscopic quantum rotations.
Laminar flow characterization using low-field magnetic resonance techniques
Creators: name: Guo, Jiangfeng
name: Ross, Michael M. B.
name: Newling, Benedict
name: Lawrence, Maggie
name: Balcom, Bruce J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Laminar flow velocity profiles depend heavily on fluid rheology. Developing methods of laminar flow characterization, based on low-field magnetic resonance (MR), contributes to the widespread industrial application of the MR technique in rheology. In this paper, we designed a low-cost, palm-sized permanent magnet with a 1H resonance frequency of 20.48 MHz to measure laminar flow. The magnet consists of two disk magnets, which were each tilted at an angle of 1° from a starting separation of 1.4 cm to generate a constant gradient, 65 gauss/cm, in the direction of flow. Subsequently, a series of process methods, for MR measurements, were proposed to characterize Newtonian and non-Newtonian fluid flows in a pipe, including phase-based method, magnitude-based method, and velocity spectrum method. The accuracies of the proposed methods were validated by simulations, and experiments of Poiseuille flow and shear-thinning flow on the designed magnet. The new velocity profile methods proposed are advantageous because the MR instrumentation and measurement methods are simple and portable. The sophistication is found in the analysis although the physical principles are straight forward.
description: 41 pages, 13 figures
Ensemble Optimization Techniques for the Simulation of Slowly Equilibrating Systems
Creators: name: Trebst, S.
name: Huse, D. A.
name: Gull, E.
name: Katzgraber, H. G.
name: Hansmann, U. H. E.
name: Troyer, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Competing phases or interactions in complex many-particle systems can result in free energy barriers that strongly suppress thermal equilibration. Here we discuss how extended ensemble Monte Carlo simulations can be used to study the equilibrium behavior of such systems. Special focus will be given to a recently developed adaptive Monte Carlo technique that is capable to explore and overcome the entropic barriers which cause the slow-down. We discuss this technique in the context of broad-histogram Monte Carlo algorithms as well as its application to replica-exchange methods such as parallel tempering. We briefly discuss a number of examples including low-temperature states of magnetic systems with competing interactions and dense liquids.
description: 15 pages, 6 figures, Invited talk at the 19th Annual Workshop on Computer Simulation Studies in Condensed Matter Physics, Athens, 20-24 February, 2006
Space-average electromagnetic fields and EM anomaly weighted by energy density in heavy-ion collisions
Creators: name: Siddique, Irfan
name: Sheng, Xin-Li
name: Wang, Qun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We study the space-average electromagnetic (EM) fields weighted by the energy density in the central regions of heavy ion collisions. These average quantities can serve as a barometer for the magnetic-field induced effects such as the magnetic effect, the chiral separation effect and the chiral magnetic wave. Comparing with the magnetic fields at the geometric center of the collision, the space-average fields weighted by the energy density are smaller in the early stage but damp slower in the later stage. The space average of squared fields as well as the EM anomaly $\mathbf{E}\cdot\mathbf{B}$ weighted by the energy density are also calculated. We give parameterized analytical formula for these average quantities as functions of time by fitting numerical results for collisions in the collision energy range $7.7-200$ GeV with different impact parameters.
description: 22 pages, 14 figures
Προδιαγραφή απαιτήσεων εργαλείου κατάρτισης επιχειρηματικού σχεδίου
Creators: name: Βαχάρη, Δέσποινα Θεοδοσίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Επιχειρηματικό Σχέδιο
Εργαλείο κατάρτισης
Ελεύθερο λογισμικό
Business Plan
Development tool
Open source

description: Η παρούσα διπλωματική διατριβή έχει θέμα “Προδιαγραφή απαιτήσεων εργαλείου κατάρτισης επιχειρηματικού σχεδίου”. Αντικείμενο της είναι η προδιαγραφή των απαιτήσεων λογισμικού το οποίο εξυπηρετεί την ανάπτυξη επιχειρηματικού σχεδίου. Σκοπός της εργασίας είναι η δημιουργία ενός λογισμικού ανοιχτού κώδικα το οποίο θα επιτρέπει στον χρήστη να αναπτύξει ένα πλήρες επιχειρηματικό σχέδιο ανεξάρτητα από την εμπειρία και τις γνώσεις του. Το σχέδιο αυτό μπορεί να αφορά μία νέα επιχειρηματική ιδέα αλλά και μια υφιστάμενη επιχείρηση η οποία επιθυμεί να πραγματοποιήσει νέες επενδύσεις. Το τελικό έγγραφο του επιχειρηματικού σχεδίου μπορεί να χρησιμοποιηθεί ώστε να ζητηθεί χρηματοδότηση με σκοπό την υλοποίηση της επιχειρηματικής ιδέας ή απλά να χρησιμοποιηθεί για την εσωτερική και οργάνωση της επιχείρησης. Αρχικά παρουσιάζεται η θεωρία του επιχειρηματικού σχεδίου και περιλαμβάνει τον ορισμό και τις βασικές ενότητες που το απαρτίζουν. Στη συνέχεια παρουσιάζεται η έρευνα που πραγματοποιήθηκε προκειμένου να βρεθούν ανάλογα εργαλεία που ήδη υπάρχουν στην αγορά. Σκοπός αυτής της έρευνας είναι ο καθορισμός των ελλείψεων της αγοράς ώστε το υπό ανάπτυξη εργαλείο να μπορέσει να τις καλύψει. Στη συνέχεια γίνεται η αναλυτική προδιαγραφή απαιτήσεων του εργαλείου ώστε να εξυπηρετεί τις ανάγκες κατάρτισης ενός επιχειρηματικού σχεδίου. Για την προδιαγραφή των απαιτήσεων αρχικά ορίστηκαν οι βασικές ενότητες τις οποίες θα περιλαμβάνει το εργαλείο. Στη συνέχεια παρουσιάζονται οι σχετικές περιπτώσεις χρήσης προκειμένου να γίνει πιο εύκολα κατανοητός στον αναγνώστη.
description: The competitive modern business environment requires organization and planning in every business decision. Planning is the key to successful investments no matter if we are talking about starting a new business or expanding a running company. The process of writing the plan itself is the best way to comprehend the important aspects of the business. This process though may seem complex and difficult especially for new entrepreneurs. An innovative or problem solving business idea does not necessarily come from an experienced executive. Therefore there is a market need for tools and applications that simplify this process and help anyone develop a reliable and structured business plan. Through an in depth online search we have found that such tools do exist but they are costly which make them less accessible especially for new under-financed businesses. The objective of this thesis is to suggest a computer tool for Business Plan development which operates as an open source software.
An analysis of Bayesian estimates for missing higher orders in perturbative calculations
Creators: name: Duhr, Claude
name: Huss, Alexander
name: Mazeliauskas, Aleksas
name: Szafron, Robert
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: With current high precision collider data, the reliable estimation of theoretical uncertainties due to missing higher orders (MHOs) in perturbation theory has become a pressing issue for collider phenomenology. Traditionally, the size of the MHOs is estimated through scale variation, a simple but ad hoc method without probabilistic interpretation. Bayesian approaches provide a compelling alternative to estimate the size of the MHOs, but it is not clear how to interpret the perturbative scales, like the factorisation and renormalisation scales, in a Bayesian framework. Recently, it was proposed that the scales can be incorporated as hidden parameters into a Bayesian model. In this paper, we thoroughly scrutinise Bayesian approaches to MHO estimation and systematically study the performance of different models on an extensive set of high-order calculations. We extend the framework in two significant ways. First, we define a new model that allows for asymmetric probability distributions. Second, we introduce a prescription to incorporate information on perturbative scales without interpreting them as hidden model parameters. We clarify how the two scale prescriptions bias the result towards specific scale choice, and we discuss and compare different Bayesian MHO estimates among themselves and to the traditional scale variation approach. Finally, we provide a practical prescription of how existing perturbative results at the standard scale variation points can be converted to 68%/95% credibility intervals in the Bayesian approach using the new public code MiHO.
description: 63 pages, 27 figures, for MiHO code see https://github.com/aykhuss/miho v2: updated references, other small changes, published version
Η θέση και τα δικαιώματα του παιδιού στην αρχαία Ελλάδα μέσα από γλυπτά του Εθνικού Αρχαιολογικού Μουσείου
Creators: name: Μηνδρινού, Ευαγγελία Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Εθνικό Αρχαιολογικό Μουσείο
Δικαιώματα παιδιού
Γλυπτά
Παιδική ηλικία
Νηπιαγωγείο
National Archaeological Museum
Children's rights
Sculptures
Childhood
Kindergarten

description: Η εργασία αυτή κινείται στα πλαίσια της μουσειακής εκπαίδευσης με στόχους που αφορούν στα δικαιώματα του παιδιού. Εξετάζεται κατά πόσο μπορούν τα παιδιά να κατανοήσουν τα δικαιώματά τους μέσα από τις αναπαραστάσεις των παιδιών, σε γλυπτά του Εθνικού Αρχαιολογικού Μουσείου, ενώ παράλληλα έρχονται σε επαφή με μερικά από τα αρτιότερα γλυπτά έργα της πολιτιστικής μας κληρονομιάς. Για τις ανάγκες της έρευνας, σχεδιάστηκε και εφαρμόστηκε ένα εκπαιδευτικό υλικό και μία σειρά δραστηριοτήτων, οι οποίες καθοδηγούν το παιδί στην αναζήτηση απαντήσεων για τα δικαιώματά τους. Είναι σημαντικό το γεγονός ότι το πρόγραμμα δεν περιλαμβάνει επίσκεψη στο μουσείο αλλά γίνεται εξ' ολοκλήρου στην τάξη, μέσα από εικόνες και δραστηριότητες αισθητικής αγωγής
description: This thesis is referred to the museum education with its objective being the children's rights. The degree to which children can understand their rights through the representations of children, in sculptures of the National Archaeological Museum, is examined, while simultaneously coming in contact with some of the best sculptures of our cultural heritage. For the needs of the research an educational material and a series of activities were designed and implemented, guiding the children to find answers about their rights. It is important that the project does not include a tour to the museum, but takes place entirely inside the classroom, through pictures and aesthetic education activities
Establishing a successful outpatient CAR T-Cell program with cilta-cel: real-world experience from an expert roundtable
Creators: name: Alsina, Melissa
name: Dhakal, Binod
name: Pantin, Jeremy
name: Huff, Carol A.
name: Janakiram, Murali
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Hematology

description: In less than a decade since their first approval, chimeric antigen receptor T-cell (CAR-T) therapies have moved into earlier lines of therapy, shifting administration from an inpatient to an outpatient setting and increasing patient demand. Several CAR-T outpatient programs have been initiated to meet patient and institution needs, resulting in resource conservation, increased treatment capacity, reduced hospitalization times, and financial advantages. Ciltacabtagene autoleucel (cilta-cel) is uniquely suited for outpatient administration, given its predictably delayed cytokine release syndrome and immune-effector cell-associated neurotoxicity syndrome profile in adult patients with relapsed or refractory multiple myeloma (MM). Given the evolution of MM treatment, the distinct safety profile of cilta-cel, limited hospital capacities, cost considerations, and patient preference, outpatient administration of cilta-cel is becoming a critical part of ensuring increased access to CAR-T therapy in a timely manner to most, if not all, eligible patients. To highlight the practical aspects of cilta-cel outpatient programs and to facilitate the establishment of similar initiatives at other clinics, a group of hematology/oncology specialists with expertise in myeloma and cellular therapies participated in a roundtable discussion. They shared their real-world experiences, provided insights on feasibility, safety, and effectiveness, and identified key success factors to prepare institutions, patients, and caregivers.
The changing shape of sovereignty in international environmental law
Creators: name: Kirk, Elizabeth Agnes
Publisher: name: University of British Columbia
Year: 2009

description: The two main arguments made in this paper are that the basic principles of international law need to change from emphasising the rights of individual states to emphasising the promotion of the common good and that this change is already taking place, albeit it very slowly and rather haphazardly. The aim of this paper is to attempt to give some direction to and to help speed the progress of these changes. To demonstrate the above thesis the paper looks at the developments in international environmental and natural resource law over approximately the last one hundred years. In so doing it looks at both how the law has developed generally and at the differences in the way different areas of the law have developed, so drawing out the haphazard nature of the development. The areas discussed are case law, the non-navigational use of international rivers, declarations and conventions on international environmental law generally (those dealing with resources regarded as the common heritage of mankind and those dealing with resources generally regarded as belonging to individual states.) It will be shown that certain circumstances are required to prompt states to agree to limit their sovereignty. They must either perceive limitation as the only or best way to obtain a certain benefit, or perceive that they share certain interests with others or face a common threat. The problem is that this approach leaves certain areas of the law undeveloped which means that it is still possible to argue that the fundamental principle of international law is the supremacy of individual state sovereignty. The difficulty with this is that it allows states to act without regard for the effects of their actions on others. For example, it allows them to refuse to take responsibility for the damage being done to the ozone layer because they can argue that they have the right to do as they wish within their territory. This takes us back to the first argument made above: that the law needs to change from promoting individual rights to promoting the common good.
Ideal pairing of the Stokes and anti-Stokes photons in the Raman process
Creators: name: Thapliyal, Kishore
name: Perina, Jan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A quantum model of the Raman process with the independent Stokes and anti-Stokes nonlinear interactions is developed to study nonclassical correlations between the photons in the Stokes and anti-Stokes fields. The role of the laser pump amplitude, the ratio of the Stokes and anti-Stokes coupling constants and the population and losses of the vibrational mode in forming the correlations is elucidated. The $ g^{(2)} $ intensity cross-correlation function, noise-reduction-factor, two-mode principal squeezing variance, logarithmic negativity, non-classicality depth, steering parameter and the Bell parameter are analyzed side-by-side to shed light to the correlations between the Stokes and anti-Stokes fields. Conditions for having the Stokes and anti-Stokes fields composed of only photon pairs, similarly as it occurs in twin beams in parametric down-conversion, are revealed. They allow for nonzero mean thermal phonon numbers.
description: Conditions for having the Stokes and anti-Stokes fields composed of only photon pairs in the Raman process analogous to twin beams in parametric down-conversion are obtained. 9 figures and 17 pages
A survey of domestic coastal and marine tourism an leisure activities in Ireland
Creators: name: Hynes, S
name: Aymelek, M
name: Norton, D
name: Tsakiridis, A
name: Corless, R
name: Hynes, S
name: Aymelek, M
name: Norton, D
name: Tsakiridis, A
name: Corless, R
Publisher: name: Unknown
Year: 2020
Subjects: subject: Environmental Economics and Policy
subject: Coastal tourism
subject: Marine tourism
subject: Ireland
subject: Domestic tourist

description: SEMRU, at NUI Galway, carried out a survey of domestic residents in Ireland in 2019 as part of the Marine Institute’s funded project “Valuing and understanding the dynamics of Ireland’s Ocean Economy” (PBA/SE/16/01). The purpose of the household survey was to profile the domestic market for single day trips (leisure) and overnight trips (tourism) for coastal and marine related activities in Ireland. The results of the survey are also used to estimate what proportion of an Irish resident’s total domestic tourism expenditure is in coastal areas (coastal tourism) and what proportion is spent on undertaking marine related activities (marine tourism). The survey complements SEMRU’s overseas marine tourism report published in 2019, where the demand for the same activities as analysed here was also examined amongst overseas visitors to Ireland.
Emergent gravity and D-brane adiabatic dynamics: emergent Lorentz connection
Creators: name: Viennot, David
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explore emergent geometry of the spacetime at the microscopic scale by adiabatic transport of a quasi-coherent state of a fermionic string, with quantum spacetime described by the matrix theory (BFSS matrix model). We show that the generator of the Berry phase is the shift vector of the spacetime foliation by spacelike surfaces associated with the quasi-coherent state. The operator-valued generator of the geometric phase of weak adiabatic transport is the Lorentz connection of the emergent geometry which is not torsion free at the microscopic scale. The effects of the torsion seem consistent with the usual interpretation of the Berry curvature as a pseudo magnetic field.
Αξιοποίηση των δορυφορικών δεδομένων του Global Precipitation Measurement για τη μελέτη καταιγιδοφόρων συστημάτων
Creators: name: Μητρόπουλος, Δημήτριος Σταύρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Μέσης κλίμακας καταιγιδοφόρο σύστημα
Δορυφορικό ραντάρ
Βροχόπτωση
Mesoscale convective system
Precipitation radar
GPM

description: Σκοπός της διατριβής ήταν η μελέτη ενός μέσης κλίμακας καταιγιδοφόρου συστήματος με τη χρήση δορυφορικών δεδομένων του δορυφόρου GPM Core Observatory. Κυρίως χρησιμοποιήθηκαν οι καινοτόμες τεχνολογίες του δορυφορικού ραντάρ του με το όνομα DPR. Σύμφωνα με αυτά τα δεδομένα μπορέσαμε να εξάγουμε συμπεράσματα για τα στοιχεία μικροφυσικής του καταιγιδοφόρου συστήματος, όπως η διάμετρος και η συγκέντρωση των κατακρημνισμάτων. Επίσης, μελετήθηκαν εις βάθος η ένταση της βροχόπτωσης, η έκτασή της και το ποσό της. Επίσης, για την εξακρίβωση των δεδομένων του δορυφόρου, χρησιμοποιήθηκαν δεδομένα του δορυφόρου MSG, επίγειων ραντάρ, μετεωρολογικών σταθμών ανά την επικράτεια της Ελλάδας και ενός δικτύου καταγραφής ηλεκτρικών εκκενώσεων. Ακόμη έγινε ανάλυση των χαρακτηριστικών της περιβάλλουσας ατμόσφαιρας με τη χρήση συνοπτικών χαρτών σε διάφορα επίπεδα, κατακόρυφων τομών και τρισδιάστατων απεικονίσεων. Τέλος, συμπεράναμε πως τα δεδομένα του GPM μπορούν να δώσουν αξιόπιστα δεδομένα για τη χρήση τους στην πρόγνωση καιρού και στην επιχειρησιακή μετεωρολογία στο μέλλον.
description: The purpose of this thesis is the investigation of a mesoscale convective system with the use of satellite data of the GPM Core Observatory satellite. Mainly, they have been used the innovative technologies of the precipitation radar named DPR. With the help of this data we could made conclusions about the microphysical characteristics of the convective system, such as the diameter and the concentration of its water droplets. Furthermore, the rain rate, its extend and its amount are studied in depth. Also, for the validation of the satellite data, are used data from the MSG geostationary satellite, ground weather radars, weather stations and a grid of recording electric discharges. Moreover, an analysis of the characteristics of the surrounding atmosphere is made with the use of synoptic charts in various levels, vertical cross sections and three-dimensional visualizations. Finally, we concluded that the GPM’s data can give reliable data for their utilization in weather forecasting and operational weather forecasting in the future.
The Grassmannian Sigma Model in SU(2) Yang-Mills Theory
Creators: name: Marsh, David
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Spin-charge separation in pure SU(2) Yang-Mills theory was recently found to involve the dynamics of an O(3) non-linear sigma model and, seemingly, a Grassmannian non-linear sigma model. In this article we explicitly construct the Grassmannian sigma model of the form appearing in the the spin-charge separated SU(2) theory through a quaternionic decomposition of the manifold, thus verifying its relevance in this context. The coupling between this model and the O(3) non-linear sigma model is further commented upon.
description: 11 pages, undergraduate research project; version published in J. Phys. A
Systematic analysis method for nonlinear response tensors
Creators: name: Oiwa, Rikuto
name: Kusunose, Hiroaki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We propose a systematic analysis method for identifying essential parameters in various linear and nonlinear response tensors without which they vanish. By using the Keldysh formalism and the Chebyshev polynomial expansion method, the response tensors are decomposed into the model-independent and dependent parts, in which the latter is utilized to extract the essential parameters. An application of the method is demonstrated by analyzing the nonlinear Hall effect in the ferroelectric SnTe monolayer for example. It is shown that in this example the second-neighbor hopping is essential for the nonlinear Hall effect whereas the spin-orbit coupling is unnecessary. Moreover, by analyzing terms contributing to the essential parameters in the lowest order, the appearance of the nonlinear Hall effect can be interpreted by the subsequent two processes: the orbital magneto-current effect and the linear anomalous Hall effect by the induced orbital magnetization. In this way, the present method provides a microscopic picture of responses. By combining with computational analysis, it stimulates further discoveries of anomalous responses by filling in a missing link among hidden degrees of freedom in a wide variety of materials.
description: 23 pages, 10 figures
Imprints of spherical non-trivial topologies on the CMB
Creators: name: Niarchou, Anastasia
name: Jaffe, Andrew
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The apparent low power in the CMB temperature anisotropy power spectrum derived from WMAP motivated us to consider the possibility of a non-trivial topology. We focus on some simple spherical multi-connected manifolds (Quaternionic, Octahedral, Truncated Cube and Poincare spaces) and discuss their implications for the CMB in terms of the power spectrum, maps and the correlation matrix. We also perform Bayesian model comparison against the fiducial best-fit LCDM based both on the power spectrum and the correlation matrix to assess their statistical significance. We find that the first year power spectrum shows a slight preference for the Truncated Cube space, but the 3-year data show no evidence for any of these spaces.
description: More comments and references added, results and conclusions unchanged. This version to appear in PRL
Texto: Casamento em Utiariti
Creators: name: Tamuxi, Luiz
name: Bardagil Mas, Bernat
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: Manoki language

description: Luíz Tamuxi conta, primeiro em português e depois em mỹky, como encontrou a futura esposa dele e casou com ela durante o tempo que passaram na missão de Utiariti.
Luís Tamuxi recounts, first in Portuguese and later in Mỹky, how he met his wife and ended up marrying her during their time at the mission of Utiariti.
The O VII X-ray forest toward Markarian 421: Consistency between XMM-Newton and Chandra
Creators: name: Kaastra, J. S.
name: Werner, N.
name: Herder, J. W. A. den
name: Paerels, F. B. S.
name: de Plaa, J.
name: Rasmussen, A. P.
name: de Vries, C. P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recently the first detections of highly ionised gas associated with two Warm-Hot Intergalactic Medium (WHIM) filaments have been reported. The evidence is based on X-ray absorption lines due to O VII and other ions observed by Chandra towards the bright blazar Mrk 421. We investigate the robustness of this detection by a re-analysis of the original Chandra LETGS spectra, the analysis of a large set of XMM-Newton RGS spectra of Mrk 421, and additional Chandra observations. We address the reliability of individual spectral features belonging to the absorption components, and assess the significance of the detection of these components. We also use Monte Carlo simulations of spectra. We confirm the apparent strength of several features in the Chandra spectra, but demonstrate that they are statistically not significant. This decreased significance is due to the number of redshift trials that are made and that are not taken into account in the original discovery paper. Therefore these features must be attributed to statistical fluctuations. This is confirmed by the RGS spectra, which have a higher signal to noise ratio than the Chandra spectra, but do not show features at the same wavelengths. Finally, we show that the possible association with a Ly-alpha absorption system also lacks sufficient statistical evidence. We conclude that there is insufficient observational proof for the existence of the two proposed WHIM filaments towards Mrk 421, the brightest X-ray blazar on the sky. Therefore, the highly ionised component of the WHIM still remains to be discovered.
description: 13 pages, 4 figures, submitted to the Astrophysical Journal