cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Mechanistic Framework of Global Value Chains
Creators: name: Dutta, Sourish
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business

description: Indeed, the global production (as a system of creating values) is eventually forming like a gigantic and complex network/web of value chains that explains the transitional structures of global trade and development of the global economy. It's truly a new wave of globalisation, and we term it as the global value chains (GVCs), creating the nexus among firms, workers and consumers around the globe. The emergence of this new scenario asks: how an economy's firms, producers and workers connect in the global economy. And how are they capturing the gains out of it in terms of different dimensions of economic development? This GVC approach is very crucial for understanding the organisation of the global industries and firms. It requires the statics and dynamics of diverse players involved in this complex global production network. Its broad notion deals with different global issues (including regional value chains also) from the top down to the bottom up, founding a scope for policy analysis (Gereffi & Fernandez-Stark 2011). But it is true that, as Feenstra (1998) points out, any single computational framework is not sufficient to quantification this whole range of economic activities. We should adopt an integrative framework for accurate projection of this dynamic multidimensional phenomenon.
On the influence of background including neutrals on the dynamics of 3D scrape-off layer filaments in fusion devices
Creators: name: Schwörer, David
Publisher: name: Zenodo
Year: 2020

description: This thesis investigates the influence of background profiles and neutrals on scrape-off layer (SOL) filaments in fusion devices using 3D simulations. This was achieved by seeding filaments on steady-state background profiles including neutrals. In terms of the filament motion, both direct and indirect interaction between the neutrals and filaments have been studied. The simulations have been carried out using the STORM module, which is implemented using the BOUT++ library. STORM has been extended to include neutrals, using a new neutrals C++-API which also uses BOUT++. Filaments have been seeded on top of plasma backgrounds with changing plasma density and temperatures. The profiles have been generated by running a reduced set of equations to steady state. The backgrounds cover different regimes, namely low-recycling regime, high recycling as well as detached plasma conditions. In the attached conditions, the filament’s radial velocity increased with increasing target temperature, suggesting that sheath currents and plasma viscosity significantly influence the studied filaments. Interaction with the neutrals reduced the filament’s radial velocity, especially in the high temperature and high density conditions. As detachment was reached, the filament’s velocity increased temporarily, as sheath currents were strongly suppressed by the high resistivity, caused by a highly dense, cold plasma in front of the target, before the general decreasing trend is recovered for higher densities. In detached conditions the neutrals had an increased impact on the filament dynamics, and partially replaced sheath currents by friction in the detachment front.
Gatz, Erwin (Hrsg.), Geschichte des kirchlichen Lebens in den deutsch-sprachigen Ländern seit dem Ende des 18. Jahrhunderts
Creators: name: Kühne, Hans-Jochen
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 45 Nr. 2 (1996): Ökumenische Rundschau, Band 45, Heft 2
Supplementary material from Climate change and alpine-adapted insects: modelling environmental envelopes of a grasshopper radiation
Creators: name: Koot, Emily M.
name: Morgan-Richards, Mary
name: Trewick, Steven A.
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology

description: A list of locality data used in niche modelling analysis plus output graphics
EU exports of livestock products to West Africa: An analysis of dairy and poultry trade data
Creators: name: Zamani, Omid
name: Pelikan, Janine
name: Schott, Johanna
name: Zamani, Omid
name: Pelikan, Janine
name: Schott, Johanna
Publisher: name: Unknown
Year: 2021
Subjects: Agribusiness
International Relations/Trade

description: The present report provides the results of the first work package of the IMMPEX project which aims to investigate the impact of German and European livestock product exports on agri-food sectors in selected African countries. Based on various criteria like trade statistics and a literature review, we identified the poultry and dairy sectors in Senegal and Ghana for further analysis in the course of the project. In this report, we provide an overview of the poultry and dairy product trade flows from Germany, the EU, and from the rest of the world to West Africa. We also show how imports, domestic production, and consumption of poultry and dairy products have developed over time. Our analysis reveals an upward trend of dairy and poultry products imports in both countries. Apart from the 28 EU countries, Brazil and the US are the main exporters of poultry to Ghana. However, the share of the EU increased since 2011. Senegal’s domestic production has considerably expanded under the import ban on uncooked poultry meat in 2006. Nevertheless, compared with poultry production growth rates in Ghana, Senegal still has lower growth rates. With regard to dairy, intra-African trade plays an important role in this sector, however, there is evidence that intra-African trade flows might be related to re-exports. The EU and New Zealand are the main competitors in the dairy markets of Ghana and Senegal.
description: DOI:10.3220/WP1610006088000
Activated events in glasses: the structure of entropic droplets
Creators: name: Dzero, Maxim
name: Schmalian, Joerg
name: Wolynes, Peter G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Using an effective potential approach, we present a replica instanton theory for the dynamics of entropic droplets in glassy systems. Replica symmetry breaking in the droplet interface leads to a length scale dependent reduction of the droplet surface tension and changes the character of the dynamical heterogeneity and activated dynamics in glasses.
description: 4 pages, 2 figures
Piattaforma Girevole per Antenne Gravitazionali
Creators: name: B. Dulach
Publisher: name: INFN Open Access Repository
Year: 1991

description: In questa nota vengono descritti i criteri seguiti per definire i parametri cinematici (velocita' e accelerazione) di una piattaforma girevole, da utilizzare per l'orientamento dell'antenna gravitazionale dell'esperimento ROG, tali da non perturbare lo stato proprio dell'antenna.
This report describes the principles used to define the kinematic parameters (speed and acceleration) for a turnable, used to orientate the cryogenic gravitational wave antenna, utilized in the ROG experiment. The turnable main goal is not perturb the antenna conditions.
Rough translation of file 006_B (collection LA 256)
Creators: name: Parker, Verdena
name: Lee-Wynant, Tyler
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio file VP-170120-13: Rough translation (minute-by-minute) of 006_B (tape 6, side B) from LA 256 (collection of recordings given to the Berkeley Language Center by Verdena), from 4:20 (start of untranslated Hupa text material) to 7:16. Due to re-numbering, tape 006_B has been assigned to the CLA item number LA256.006, audio file LA256.006B.
Adaptations: an office building in Vancouver
Creators: name: Hayden, Michele Andrea
Publisher: name: University of British Columbia
Year: 2009

description: This thesis project began with an interest in how architecture provides for both permanence and temporality and how contemporary conditions may impact upon architectural form. An, office building was chosen as the subject of exploration due to its ubiquitous nature and the requirement that it be adaptable to the changing needs of its occupants. The need for a flexible and economic architecture also presented the problem of anonymity and a lack of experiential richness. The intention of the investigation was to discover in what ways, if any, the permanent and temporal elements of a building might act in conjuction to create an enduring artifact which could respond to and register the complexities of everyday life. The project was inspired by observations in the city of Vancouver where development has occurred in a rapid and often irregular manner. The eastern part of the downtown centre and Yaletown were identified as particular areas of study. Patterns of development exhibit many smaller sites left empty or used as parking until being developed. These sites revealed an opportunity for the design of a medium-sized building which might maintain the smaller grain characteristic of these areas. As a "type", it could be adapted to the particularities of its location as well as the changing requirements of its occupants. A number of sites from four to six lots in width were identified in the study area. Various configurations were then devised to adapt the building model to particular site conditions including double party-wall versus corner locations and different orientations. The final project consists of the adaptation of this type to a site located on Homer Street near Pender Street. It is adjacent to an alley which marks the change in grid orientation in the area and allows three elevations of the building to be explored . The building employs an asymmetrically situated atrium and a core divided into two separated pods which would allow for increased penetration of natural light and ventilation. Structure, envelope and space dividing elements operate independently. The building envelope is separated out into two layers: the interior layer consists of a four foot wide grid of openings which may be filled with birch clad panels, bookcases or glazed panels or fitted with operable louvered windows. Random placements of panels allow the human inhabitation to be registered on the exterior of the building. The exterior skin then superimposes a composition of glazed panels which responds to the scale and order of the city and deals with environmental elements. A carved out entry lobby and two storey terrace along with landscaped roofdeck provide gradations of public and private common areas.
Asymptotic analysis of multiscale approximations to reaction networks
Creators: name: Ball, Karen
name: Kurtz, Thomas G.
name: Popovic, Lea
name: Rempala, Greg
Publisher: name: arXiv
Year: 2005
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 92C45, 80A30, 60J27, 60J80, 60F17 (Primary)

description: A reaction network is a chemical system involving multiple reactions and chemical species. Stochastic models of such networks treat the system as a continuous time Markov chain on the number of molecules of each species with reactions as possible transitions of the chain. In many cases of biological interest some of the chemical species in the network are present in much greater abundance than others and reaction rate constants can vary over several orders of magnitude. We consider approaches to approximation of such models that take the multiscale nature of the system into account. Our primary example is a model of a cell's viral infection for which we apply a combination of averaging and law of large number arguments to show that the ``slow'' component of the model can be approximated by a deterministic equation and to characterize the asymptotic distribution of the ``fast'' components. The main goal is to illustrate techniques that can be used to reduce the dimensionality of much more complex models.
description: Published at http://dx.doi.org/10.1214/105051606000000420 in the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Colloidal Electrostatic Interactions Near a Conducting Surface
Creators: name: Polin, Marco
name: Grier, David G.
name: Han, Yilong
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: Charge-stabilized colloidal spheres dispersed in deionized water are supposed to repel each other. Instead, artifact-corrected video microscopy measurements reveal an anomalous long-ranged like-charge attraction in the interparticle pair potential when the spheres are confined to a layer by even a single charged glass surface. These attractions can be masked by electrostatic repulsions at low ionic strengths. Coating the bounding surfaces with a conducting gold layer suppresses the attraction. These observations suggest a possible mechanism for confinement-induced attractions.
description: 4 pages, 2 figures
PROGETTO DI UN CONTATORE A SCINTILLA MODULARE CON ELETTRODI IN VETRO
Creators: name: G. BENCIVENNI
name: G. FELICI
name: C. GUSTAVINO
name: E. IACUESSA
Publisher: name: INFN Open Access Repository
Year: 1992

description: Lo studio di contatori a scintilla in vetro (GSC) e' iniziato a Frascati nel 1991 [1.2], con la costruzione di prototipi di dimensioni ridotte, realizzati utilizzando elettrodi in vetro commerciale di tipo float. Il principale vantaggio di questo rivelatore rispetto agli RPC in bakelite [3] e' l'assenza di scintille non associate al passaggio di particelle, consentendo la calibrazione e il controllo dei rivelatori in modo rapido, attraverso la misura della frequenza di conteggio in singola. Questa caratteristica e' di estrema importanza in apparati di grande dimensione. I risultati ottenuti hanno evidenziato che questo rivelatore puo' essere utilizzato in esperimenti in cui viene effettuato lo studio degli sciami atmosferici estesi. La resistivita' degli elettrodi in vetro float (circa 10^12 Ω.cm), e' infatti adeguata per le applicazioni a basse frequenze di conteggio. La risoluzione temporale di circa un nanosecondo consente la determinazione dell'asse degli sciami con una risoluzione angolare di circa un grado, utilizzando la tecnica dei tempi di volo. Infine, la notevole ampiezza dei segnali associati alle scintille (alcune centinaia di millivolt) consente di utilizzare un elettronica di front-end a basso costo. Poiche' gli apparati di rivelazione atmosferici estesi hanno in genere un notevole sviluppo superficiale [4], e' di estrema importanza che i rivelatori siano concepiti in modo da poter essere realizzati con procedure industriali, in modo da garantire una elevata velocita' di produzione e un costo contenuto. In questa nota viene riportato il disegno di un GSC ad elevata modularita' e di facile assemblaggio, adatto quindi alla produzione in serie. Le soluzioni adottate rendono il rivelatore poco sensibile alle condizioni di lavoro.
The influence of the fear of failure on women pursuing entrepreneurship in the United Kingdom
Creators: name: Phillips, Robert
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 390103
subject: Economics, business and management curriculum and pedagogy

description: Mathur, S. and Phillips, R.A. (2024) Journal of the International Council for Small BusinessBoosting women’s entrepreneurship is a key issue in improving the economies of countries worldwide, and while there is no objective reason why women’s ventures should perform less well than men’s, considerable barriers have been reported. Using qualitative interviews of nascent women entrepreneurs in the United Kingdom, we found that there are both internal and external contributory factors affecting fear of failure that we classified into five main areas. Many of these issues are related to gender, as interviewees felt the entrepreneurial ecosystem was male dominated, and also that women entrepreneurs had a habit of “hedging” by working on a plan B in case their venture failed, diluting their efforts. While generally seen as negative, fear of failure did encourage the women entrepreneurs to work harder and be more determined to succeed. We conclude by suggesting what can be done to overcome these barriers at different stages of the entrepreneurship process.
When low- and high-energy electronic responses meet in cuprate superconductors
Creators: name: Chang, J.
name: Pailhes, S.
name: Shi, M.
name: Månsson, M.
name: Claesson, T.
name: Tjernberg, O.
name: Voigt, J.
name: Perez-Dieste, V.
name: Patthey, L.
name: Momono, N.
name: Oda, M.
name: Ido, M.
name: Schnyder, A.
name: Mudry, C.
name: Mesot, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The existence of coherent quasiparticles near the Fermi energy in the low temperature state of high-temperature superconductors has been well established by angle-resolved photoemission spectroscopy (ARPES). This technique directly probes the momentum-resolved electronic excitation spectrum of the CuO$_2$ planes. We present a study of close to optimally doped La$_{1.83}$Sr$_{0.17}$CuO$_4$ in the superconducting state and report an abrupt change in the quasiparticle spectral function, as we follow the dispersion of the ARPES signal from the Fermi energy up to 0.6 eV. The interruption in the quasiparticle dispersion separates coherent quasiparticle peaks at low energies from broad incoherent excitations at high energies. We find that the boundary between these low-energy and high-energy features exhibits a cosine-shaped momentum dependence, reminiscent of the superconducting d-wave gap. Further intriguing similarities between characteristics of the incoherent excitations and quasiparticle properties (lifetime, Fermi arcs) suggest a close relation between the electronic response at high and low energies in cuprate superconductors.
Μελέτες κατευθυνόμενες προς την ολική σύνθεση της Αιγιαλομυκίνης-D
Creators: name: Μανδάλου, Παναγιώτα Χρόνη
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Αιγιαλομυκίνη-D
Μακρολίδια
Φυσικά προϊόντα
Aigialomycin D
Macrolides
Natural products

description: Στην παρούσα διπλωματική εργασία έγινε προσπάθεια ολικής σύνθεσης της Αιγιαλομυκίνης D με πρώτη ύλη την D-αραβινόζη. Στόχος ήταν η ολοκλήρωση της σύνθεσης σε 14 στάδια με τη βοήθεια μιας σύζευξης Heck και μιας μακρολακτονοποίησης. Το σημαντικότερο στάδιο στο οποίο σταμάτησε η όλη προσπάθεια ήταν μια σύζευξη με διασταυρούμενη μετάθεση.
description: The aim of this thesis was an effort towards the total synthesis of Aigialomycin D with D-arabinoze as a starting material. The target was the completion of synthesis in 14 steps by Heck coupling and macrolactonization. The most important step, in which our effort terminated, was a cross metathesis.
Rayleigh-Bénard convection of a model emulsion: anomalous heat-flux fluctuations and finite-size droplets effects
Creators: name: Pelusi, Francesca
name: Sbragaglia, Mauro
name: Benzi, Roberto
name: Scagliarini, Andrea
name: Bernaschi, Massimo
name: Succi, Sauro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present mesoscale numerical simulations of Rayleigh-Bénard (RB) convection in a two-dimensional model emulsion. The systems under study are constituted of finite-size droplets, whose concentration Phi_0 is systematically varied from small (Newtonian emulsions) to large values (non-Newtonian emulsions). We focus on the characterisation of the heat transfer properties close to the transition from conductive to convective states, where it is known that a homogeneous Newtonian system exhibits a steady flow and a time-independent heat flux. In marked contrast, emulsions exhibit a non-steady dynamics with fluctuations in the heat flux. In this paper, we aim at the characterisation of such non-steady dynamics via detailed studies on the time-averaged heat flux and its fluctuations. To understand the time-averaged heat flux, we propose a side-by-side comparison between the emulsion system and a single-phase (SP) system, whose viscosity is constructed from the shear rheology of the emulsion. We show that such local closure works well only when a suitable degree of coarse-graining (at the droplet scale) is introduced in the local viscosity. To delve deeper into the fluctuations in the heat flux, we propose a side-by-side comparison between a Newtonian emulsion and a non-Newtonian emulsion, at fixed time-averaged heat flux. This comparison elucidates that finite-size droplets and the non-Newtonian rheology cooperate to trigger enhanced heat-flux fluctuations at the droplet scales. These enhanced fluctuations are rooted in the emergence of space correlations among distant droplets, which we highlight via direct measurements of the droplets displacement and the characterisation of the associated correlation function. The observed findings offer insights on heat transfer properties for confined systems possessing finite-size constituents.
description: 15 pages, 22 figures. arXiv admin note: substantial text overlap with arXiv:2010.02139, arXiv:2010.02138
Rough translation of file 005_A (collection LA 256)
Creators: name: Parker, Verdena
name: Lee-Wynant, Tyler
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio file VP-170120-12: Rough translation (minute-by-minute) of 005_A (tape 5, side A) from LA 256 (collection of recordings given to the Berkeley Language Center by Verdena), from 43:45 (start of untranslated Hupa text material) to the end of the file. Due to re-numbering, tape 005_A has been assigned to the CLA item number LA256.005, audio file LA256.005A.
Estimation of the cost of influenza antiviral medication guidance or support provided by healthcare professionals: a questionnaire survey in Japan
Creators: name: Kurazono, Kenji
name: Ikeoka, Hidetoshi
name: Hiroi, Shinzo
name: Iwasaki, Kosuke
name: Takeshima, Tomomi
name: Akazawa, Manabu
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: To estimate the cost of antiviral medication guidance and/or support from the perspective of healthcare professionals by administration route (oral or inhalant). An online survey (December 2020) was conducted among physicians, pharmacists, and certified care workers. Those aged 20–64 years working in workplaces with experience of prescribing (physicians) or dispensing (pharmacists) antivirals for influenza, or having care service recipients who took antivirals (certified care workers) since October 2018, were selected through screening questions. The time required for guidance and/or support for drug administration was asked, and its monetary value was calculated by applying the Japanese average wage. Respondents who had a fear of infection while providing guidance and/or support were asked about the monetary value of this fear; the cost of fear was estimated from their responses and the percentage who reported such a fear. Responses were collected from 1,000 physicians, 1,000 pharmacists, and 642 certified care workers. The cost of the time for guidance and/or support in the entire workplace was estimated as JPY 244 (USD 2.14, as of October 2021) for oral antivirals and JPY 289 for inhalants among physicians, JPY 260 and JPY 428 among pharmacists, and JPY 555 and JPY 557 among certified care workers. The cost of fear was estimated to be JPY 965 for oral and JPY 1,361 for inhalants among physicians, JPY 756 and JPY 2,711 among pharmacists, and JPY 2,419 and JPY 2,837 among certified care workers. Respondents might not be representative of Japanese society. The reliability of the results depends on whether the respondents accurately understood the questions and their truthfulness. Higher costs for guidance and/or support were suggested for inhalant antivirals in physicians and pharmacists compared to oral antivirals. For certified care workers, almost no difference in costs was suggested between administration routes.
The speed of traveling waves in a FKPP-Burgers system
Creators: name: Bramburger, Jason J.
name: Henderson, Christopher
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We consider a coupled reaction-advection-diffusion system based on the Fisher-KPP and Burgers equations. These equations serve as a one-dimensional version of a model for a reacting fluid in which the arising density differences induce a buoyancy force advecting the fluid. We study front propagation in this system through the lens of traveling waves solutions. We are able to show two quite different behaviors depending on whether the coupling constant $ρ$ is large or small. First, it is proved that there is a threshold $ρ_0$ under which the advection has no effect on the speed of traveling waves (although the advection is nonzero). Second, when $ρ$ is large, wave speeds must be at least $\mathcal{O}(ρ^{1/3})$. These results together give that there is a transition from pulled to pushed waves as $ρ$ increases. Because of the complex dynamics involved in this and similar models, this is one of the first precise results in the literature on the effect of the coupling on the traveling wave solution. We use a mix of ordinary and partial differential equation methods in our analytical treatment, and we supplement this with a numerical treatment featuring newly created methods to understand the behavior of the wave speeds. Finally, various conjectures and open problems are formulated.
description: 33 pages, 2 figures
Il Sistema di Rivelatori di Posizione del Fascio per TTF
Creators: name: L. Cacciotti
name: M. Castellano
name: L. Catani
name: P. Patteri
name: F. Tazzioli
Publisher: name: INFN Open Access Repository
Year: 1996

description: È descritto il sistema elettronico di misura della posizione del fascio con i rivelatori a stripline (Beam Position Monitors, BPM), realizzato nella seconda metà del 1995. Sono riportate le procedure di messa a punto e i risultati dei test di caratterizzazione di un sistema completo di monitor ed elettronica, simulando il fascio con un filo percorso da corrente. Sono discussi i problemi relativi alla stabilità della misura in funzione della temperatura, la loro origine e il sistema di calibrazione per la loro correzione software.
Green Apples, Red Apples: Politics of Comparative Literature in Iran
Creators: name: Fomeshi, Behnam M
Publisher: name: Zenodo
Year: 2021
Subjects: Iranian Studies
Persian Literature
Comparative Literature

description: Fomeshi, Behnam M. “Green Apples, Red Apples: Politics of Comparative Literature in Iran.” Comparative Literature Around the World: Global Practice. Eds. Eugene Eoyang, Gang Zhou, and Jonathan Hart. Paris: Honoré Champion, 2021. 201-218.
Η χρήση και η λειτουργία των λογικών συνδέσμων στον καθημερινό και μαθηματικό λόγο των μαθητών της Β' δημοτικού
Creators: name: Σπανοπούλου, Ελένη Ζαφειρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Λογικοί σύνδεσμοι
Χρήση
Λειτουργία
Καθημερινός λόγος
Μαθηματικός λόγος
Νοηματοδοτήσεις
Logical connectives
Use
Function
Everyday discourse
Mathematic discourse
Meaningful

description: Στην εργασία αυτή επιχειρήθηκε η διερεύνηση της χρήσης και της λειτουργίας των λογικών συνδέσμων και, ή, άρα, επομένως, στον καθημερινό και μαθηματικό λόγο των μαθητών της Β' δημοτικού. Την ερευνητική διαδικασία απασχόλησαν ιδιαίτερα οι συλλογιστικές διεργασίες που αναπτύσσουν τα παιδιά στη διάρκεια καθημερινών και μαθηματικών δραστηριοτήτων και οι διαφορετικές νοηματοδοτήσεις των λογικών συνδέσμων στους διαφορετικούς λόγους. Εγινε φανερό ότι τα παιδιά νοηματοδοτούν τους λογικούς συνδέσμους στο μαθηματικό λόγο με όρους καθημερινού λόγου
description: In this paper we attempted to investigate the use and function of the logical connectives, and, or, therefore, consequently, in everyday and mathematical discourse of children who attend the primary school and their role in the formation of thought's logical constructions. Through students discourse analysis we reached into some basic conclusions. Students use and make logical connectives meaningful by everyday terms, during mathematical activities
Complex organic molecules in protoplanetary disks : X-ray photodesorption from methanol-containing ices. Part I -- Pure methanol ices
Creators: name: Basalgète, R.
name: Dupuy, R.
name: Féraud, G.
name: Romanzin, C.
name: Philippe, L.
name: Michaut, X.
name: Michoud, J.
name: Amiaud, L.
name: Lafosse, A.
name: Fillion, J-H.
name: Bertin, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Astrophysical observations show complex organic molecules (COMs) in the gas phase of protoplanetary disks. X-rays emitted from the central young stellar object (YSO) that irradiate interstellar ices in the disk, followed by the ejection of molecules in the gas phase, are a possible route to explain the abundances observed in the cold regions. This process, known as X-ray photodesorption, needs to be quantified for methanol-containing ices. This paper I focuses on the case of X-ray photodesorption from pure methanol ices. We aim at experimentally measuring X-ray photodesorption yields of methanol and its photo-products from pure CH$_3$OH ices, and to shed light on the mechanisms responsible for the desorption process. We irradiated methanol ices at 15 K with X-rays in the 525 - 570 eV range. The release of species in the gas phase was monitored by quadrupole mass spectrometry, and photodesorption yields were derived. Under our experimental conditions, the CH$_3$OH X-ray photodesorption yield from pure methanol ice is 10$^{-2}$ molecule/photon at 564 eV. Photo-products such as CH$_4$, H$_2$CO, H$_2$O, CO$_2$ , and CO also desorb at increasing efficiency. X-ray photodesorption of larger COMs, which can be attributed to either ethanol, dimethyl ether, and/or formic acid, is also detected. The physical mechanisms at play are discussed and must likely involve the thermalization of Auger electrons in the ice, thus indicating that its composition plays an important role. Finally, we provide desorption yields applicable to protoplanetary disk environments for astrochemical models. The X-rays are shown to be a potential candidate to explain gas-phase abundances of methanol in disks. However, more relevant desorption yields derived from experiments on mixed ices are mandatory to properly support the role played by X-rays in nonthermal desorption of methanol (see paper II).
Motion of a random walker in a quenched power law correlated velocity field
Creators: name: Roy, Soumen
name: Das, Dibyendu
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the motion of a random walker in one longitudinal and d transverse dimensions with a quenched power law correlated velocity field in the longitudinal x-direction. The model is a modification of the Matheron-de Marsily (MdM) model, with long-range velocity correlation. For a velocity correlation function, dependent on transverse co-ordinates y as 1/(a+|{y_1 - y_2}|)^alpha, we analytically calculate the two-time correlation function of the x-coordinate. We find that the motion of the x-coordinate is a fractional Brownian motion (fBm), with a Hurst exponent H = max [1/2, (1- alpha/4), (1-d/4)]. From this and known properties of fBM, we calculate the disorder averaged persistence probability of x(t) up to time t. We also find the lines in the parameter space of d and alpha along which there is marginal behaviour. We present results of simulations which support our analytical calculation.
description: 8 pages, 4 figures. To appear in Physical Review E
The influence of the fear of failure on women pursuing entrepreneurship in the United Kingdom
Creators: name: Phillips, Robert
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 390103
subject: Economics, business and management curriculum and pedagogy

description: Mathur, S. and Phillips, R.A. (2024) Journal of the International Council for Small BusinessBoosting women’s entrepreneurship is a key issue in improving the economies of countries worldwide, and while there is no objective reason why women’s ventures should perform less well than men’s, considerable barriers have been reported. Using qualitative interviews of nascent women entrepreneurs in the United Kingdom, we found that there are both internal and external contributory factors affecting fear of failure that we classified into five main areas. Many of these issues are related to gender, as interviewees felt the entrepreneurial ecosystem was male dominated, and also that women entrepreneurs had a habit of “hedging” by working on a plan B in case their venture failed, diluting their efforts. While generally seen as negative, fear of failure did encourage the women entrepreneurs to work harder and be more determined to succeed. We conclude by suggesting what can be done to overcome these barriers at different stages of the entrepreneurship process.
Some Recent Developments in Auxiliary-Field Quantum Monte Carlo for Real Materials
Creators: name: Shi, Hao
name: Zhang, Shiwei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The auxiliary-field quantum Monte Carlo (AFQMC) method is a general numerical method for correlated many-electron systems, which is being increasingly applied in lattice models, atoms, molecules, and solids. Here we introduce the theory and algorithm of the method specialized for real materials, and present several recent developments. We give a systematic exposition of the key steps of AFQMC, closely tracking the framework of a modern software library we are developing. The building of a Monte Carlo Hamiltonian, projecting to the ground state, sampling two-body operators, phaseless approximation, and measuring ground state properties are discussed in details. An advanced implementation for multi-determinant trial wave functions is described which dramatically speeds up the algorithm and reduces the memory cost. We propose a self-consistent constraint for real materials, and discuss two flavors for its realization, either by coupling the AFQMC calculation to an effective independent-electron calculation, or via the natural orbitals of the computed one-body density matrix.
description: 33 pages, 4 figures
THE LOWER EOCENE RODA SANDSTONE (SOUTH-CENTRAL PYRENEES):AN EXAMPLE OF A FLOOD-DOMINATED RIVER-DELTA SYSTEMIN A TECTONICALLY CONTROLLED BASIN
Creators: name: TINTERRI, ROBERTO
Publisher: name: Università degli Studi di Milano
Year: 2007

description: The lower Eocene Roda Sandstone (Figols Group, south-central Pyrenees) mainly consists of mouth bars and delta-front sandstone lobes deposited in a flood-dominated river-delta system. The deposition of these bodies was strongly controlled by an interaction between flood-dominated gravity flows entering seawater, topographic confinement and tidal currents. The Roda Sandstone is made up of six depositional sequences of different hierarchical order each of which is characterized by a basal deltaic sandstone wedge (R1 to R6) that passes upward into a siltstone and mudstone interval. Each basal deltaic sandstone wedge is composed of three types of facies association and respective facies tract (sensu Mutti 1992) that, from proximal to distal zones, are indicated as T1, T2 and T3. These three facies tracts are created by the downcurrent evolution of different types of sediment-laden stream flows entering seawater and related hyperpycnal flows. Their deposits are constituted by three different types of coarse-grained mouth bars and corresponding fine-grained delta-front sandstone lobes. The tidal influence is present in facies tract T3 in the R5 and R6 sandstone units, where the passage between flood-dominated mouth bars and the delta-front sandstone lobes occurs through intermediate facies characterized by different types of sigmoidal-cross stratification whose meaning will be discussed. The basal deltaic sandstone wedges of Roda sandstone are characterized by a progressive forestepping culminating in the R6 unit that erodes the underlying R5 unit and by an overlying backstepping unit indicated as R7. The erosive surface at the base of R6 unit is interpreted as a sequence boundary that divides the Roda Sandstone into two parts: 1) an underlying highstand system tract (HST) and falling stage system tract (FSST) (units R1 to R5) and 2) an overlying low-stand delta (the R6 unit) that passes upward into highstand mudstone through a transgressive system tract represented by the R7 unit. Pdf
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 113, No 2
Estimation of the cost of influenza antiviral medication guidance or support provided by healthcare professionals: A questionnaire survey in Japan
Creators: name: Kurazono, Kenji
name: Ikeoka, Hidetoshi
name: Hiroi, Shinzo
name: Iwasaki, Kosuke
name: Takeshima, Tomomi
name: Akazawa, Manabu
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: To estimate the cost of antiviral medication guidance and/or support from the perspective of healthcare professionals by administration route (oral or inhalant). An online survey (December 2020) was conducted among physicians, pharmacists, and certified care workers. Those aged 20–64 years working in workplaces with experience of prescribing (physicians) or dispensing (pharmacists) antivirals for influenza, or having care service recipients who took antivirals (certified care workers) since October 2018, were selected through screening questions. The time required for guidance and/or support for drug administration was asked, and its monetary value was calculated by applying the Japanese average wage. Respondents who had a fear of infection while providing guidance and/or support were asked about the monetary value of this fear; the cost of fear was estimated from their responses and the percentage who reported such a fear. Responses were collected from 1,000 physicians, 1,000 pharmacists, and 642 certified care workers. The cost of the time for guidance and/or support in the entire workplace was estimated as JPY 244 (USD 2.14, as of October 2021) for oral antivirals and JPY 289 for inhalants among physicians, JPY 260 and JPY 428 among pharmacists, and JPY 555 and JPY 557 among certified care workers. The cost of fear was estimated to be JPY 965 for oral and JPY 1,361 for inhalants among physicians, JPY 756 and JPY 2,711 among pharmacists, and JPY 2,419 and JPY 2,837 among certified care workers. Respondents might not be representative of Japanese society. The reliability of the results depends on whether the respondents accurately understood the questions and their truthfulness. Higher costs for guidance and/or support were suggested for inhalant antivirals in physicians and pharmacists compared to oral antivirals. For certified care workers, almost no difference in costs was suggested between administration routes.
A Simple Spin Glass Perspective on Martensitic Shape-memory Alloys
Creators: name: Sherrington, David
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A brief qualitative mapping is given between austenite, tweed and twinned phases of martensite alloys and corresponding paramagnetic, spin glass and periodic phases in spin glass alloys.
description: This paper is dedicated to John Pendry in celebration of his 65th birthday. It has been accepted for a special issue of J.Phys.CM. This version corrects a typo, includes a new recent reference and indicates an alternative formulation for 3D
EOCENE LARGER FORAMINIFERAL BIOSTRATIGRAPHY IN THE SOUTHERNMOST DAUPHINOIS DOMAIN (MARITIME ALPS, FRANCE-ITALY BORDER)
Creators: name: VARRONE, DARIO
name: DECROUEZ, DANIELLE
Publisher: name: Università degli Studi di Milano
Year: 2007

description: The Trucco Formation and the Nummulitic Limestone (Dauphinois Domain, Maritime Alps) are characterized by abundant larger foraminifera, specifically nummulitids, orthophragminids and encrusting foraminifera. In the Maritime Alps, previous studies suggest a late Lutetian age for the Trucco Formation and a late Lutetian-Priabonian age for the Nummulitic Limestone.
Biostratigraphic analysis of the nummulitids, in 11 stratigraphic sections, allowed us to distinguish 3 biozones:
MALF1 Zone: defined by the presence of Nummulites brongniarti d’Archiac & Haime, N. puschi d’Archiac, N. perforatus de Montfort, N. striatus (Bruguière), N. cf. dufrenoyi d’Archiac & Haime, N. variolarius/incrassatus and Operculina schwageri Silvestri.
MALF2 Zone: defined by the presence of Nummulites perforatus de Montfort, N. striatus (Bruguière), N. cf. dufrenoyi d’Archiac & Haime, N. variolarius/incrassatus and Operculina schwageri Silvestri.
MALF 3 Zone: defined by the presence of gr. Nummulites variolarius/incrassatus, N. striatus (Bruguière) and Operculina schwageri Silvestri.
According to current larger foraminiferal biozonal schemes, the age of these local biozones corresponds to the Bartonian p.p.
Moreover, the comparison with biostratigraphic schemes established for the Dauphinois Domain and for the Tethyan area evidences that several typical nummulitid species of the late Bartonian are lacking in the southern Dauphinois Domain, probably due to a paleogeographic control.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 113, No 2
Imaging the South American Cratons with Waveform Tomography
Creators: name: Chagas de Melo, Bruna
Publisher: name: Zenodo
Year: 2021

description: Two large cratonic domains are identified in South America: the Amazonian one, consolidated in Archean-Paleoproterozoic times, and the Brasiliano one, marked by Neoproterozoic events related to the West Gondwana assembly. Within each domain, different cratonic nuclei have been found using geological and geophysical data. However, the detailed lateral and vertical extent and even the existence of some of these nuclei are debated.

Seismic tomography is a powerful tool to image the deep lithospheric structure. Recently, seismic data sampling in South America has increased dramatically. Here, we assemble all freely available broadband seismic data, regional and global, including the FAPESP “3-Basins Thematic Project”. After selecting all the source-station paths crossing the hemisphere centred in South America and performing an automatic outlier rejection—removing the largest data errors—we  obtain a massive final dataset of waveform fits for ~1 million vertical-component seismograms, constraining our model.

We compute our S-velocity tomographic model of the upper mantle of South America and surrounding oceans using the Automated Multimode Inversion (AMI) of surface, S and multiple S waves. Taking advantage of the newly abundant data on the continent and combining it with dense data sampling in the surrounding areas, we resolve the structure of cratons in fine detail. Regions of thinner lithosphere within cratons correspond to areas of rifting in previous tectonic cycles. Within the Amazon Craton, we image two different cratonic blocks, separated by the Amazon Basin. An aborted rift system preceded the formation of the Amazon basin in the Neoproterozoic, and rift reactivation occurred with the break-up of Pangea in the Mesozoic. In the São Francisco Craton, we image relatively thin lithosphere in the Paramirim Aulacogen area, a Paleoproterozoic intracontinental rift system. We also image cratonic blocks under sedimentary basins. East of the Amazon craton, our model reveals the thick high velocity lithosphere of the Parnaíba block, and under the Paraná basin—a fragmented Paranapanema block. Finally, the detailed new mapping of the cratonic boundaries reveals that magmatic centres and large igneous provinces are all distributed where the lithosphere is relatively thin, around the thick roots of the cratons.
MICROPALEONTOLOGICAL STUDY ON THE MIOCENE CALCAREOUS TURBIDITE DEPOSITS OF FAETO AND TUFILLO FORMATIONS (EASTERN SECTOR OF THE SOUTHERN APENNINE CHAIN)
Creators: name: LIRER, FABRIZIO
name: CASCELLA, ANTONIO
name: CESARANO, MASSIMO
name: CASCIELLO, EMILIO
name: PAPPONE, GERARDO
Publisher: name: Università degli Studi di Milano
Year: 2007

description: A biostratigraphic study was carried out on four sections of  the Miocene Tufillo and Faeto Formations (Southern Apennines). The sediments analyzed were referred to the late Burdigalian-early Tortonian on the basis of planktonic foraminifers (MMi2b Subzone through the MMi8 Zone) and calcareous nannofossils (MNN3b Zone through the MNN7 Zone). Almost the majority of the bioevents of the recently published Miocene biozonal schemes of Mediterranean area were identified. Particularly, the marked changes in the abundance pattern of Paragloborotalia siakensis resulted very useful to correlate the sediments. A new acme abundance of the letter species has been recorded in the uppermost part of the Burdigalian planktonic foraminiferal MMi2b Subzone. Moreover, the integrated calcareous plankton biostratigraphy  revealed that the First Common Occurrence (FCO) of Sphenolitus heteromorphus occurs before the Last Occurrence (LO) of Catapsidrax dissimilis, in the upper part of Burdigalian record.
This study indicates that the lower Langhian portion of the Tufillo Formation is characterized by arkose sandstones which pass upwards into calcarenites and/or calcirudites and marly deposits. Field data suggest that these sandstones directly overly the "Numidian Sandstones". The Faeto Formation starts with calcarenites and calcareous marls, in the calcareous nannofossil MNN3b Zone (Burdigalian), and lies on the "Numidian Sandstones" as well.
High-resolution sampling and biostratigraphy reveal that the deposition of the "Numidian Sandstones" ends in the late Burdigalian stage, just below the FCO of S. heteromorphus (MNN3b Zone) and the LO of C. dissimilis (MMi2b Subzone).
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 113, No 2