cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A tweezer clock with half-minute atomic coherence at optical frequencies and high relative stability
Creators: name: Young, Aaron W.
name: Eckner, William J.
name: Milner, William R.
name: Kedar, Dhruv
name: Norcia, Matthew A.
name: Oelker, Eric
name: Schine, Nathan
name: Ye, Jun
name: Kaufman, Adam M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The preparation of large, low-entropy, highly coherent ensembles of identical quantum systems is foundational for many studies in quantum metrology, simulation, and information. Here, we realize these features by leveraging the favorable properties of tweezer-trapped alkaline-earth atoms while introducing a new, hybrid approach to tailoring optical potentials that balances scalability, high-fidelity state preparation, site-resolved readout, and preservation of atomic coherence. With this approach, we achieve trapping and optical clock excited-state lifetimes exceeding $ 40 $ seconds in ensembles of approximately $ 150 $ atoms. This leads to half-minute-scale atomic coherence on an optical clock transition, corresponding to quality factors well in excess of $10^{16}$. These coherence times and atom numbers reduce the effect of quantum projection noise to a level that is on par with leading atomic systems, yielding a relative fractional frequency stability of $5.2(3)\times10^{-17}~(τ/s)^{-1/2}$ for synchronous clock comparisons between sub-ensembles within the tweezer array. When further combined with the microscopic control and readout available in this system, these results pave the way towards long-lived engineered entanglement on an optical clock transition in tailored atom arrays.
description: 11 pages, 5 figures (main text); 17 pages, 7 figures (supplemental materials)
MSE_loss_exp5
Creators: name: Yuntian Chen
Publisher: name: figshare
Year: 2020
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: This folder contains the MSE loss of three epochs in a group of experiments. For example, exp1_epoch2 represents the MSE loss of the third epoch in the first experiment (epoch is calculated from 0). Each data file contains a matrix with size of 14*13. The 14 rows correspond to the 14 wells in the dataset, and the 13 columns are the 12 kinds of well logs and the average MSE. Specifically, the columns are Young’s modulus E_x and E_y, cohesion C, uniaxial compressive strength UCS, density ρ, tensile strength TS, brittleness index BI_x and BI_y, Poisson’s ratio ν_x and ν_y, neutron porosity NPR, total organic carbon TOC and average MSE from left to right.
Quasinormal modes prefer supersymmetry ?
Creators: name: Ling, Yi
name: Zhang, Hongbao
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: One ambiguity in loop quantum gravity is the appearance of a free parameter which is called Immirzi parameter. Recently Dreyer has argued that this parameter may be fixed by considering the quasinormal mode spectrum of black holes, while at the price of changing the gauge group to SO(3) rather than the original one SU(2). Physically such a replacement is not quite natural or desirable. In this paper we study the relationship between the black hole entropy and the quasi normal mode spectrum in the loop quantization of N=1 supergravity. We find that a single value of the Immirzi parameter agrees with the semiclassical expectations as well. But in this case the lowest supersymmetric representation dominates, fitting well with the result based on statistical consideration. This suggests that, so long as fermions are included in the theory, supersymemtry may be favored for the consistency of the low energy limit of loop quantum gravity.
description: 3 pages
Videogame Localization for a Greek Audience: A Case Study of League of Legends
Creators: name: Βασιλικάρης, Γεώργιος Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Βιντεοπαιχνίδια
Επιχώρια Προσαρμογή
Εμβύθιση
Videogames
Localisation
Immersion

description: Entertainment has always been a core part of human nature and the element of play has contributed significantly to the development of culture (Huizinga, 1938). Due to their multimodal nature and their ability to immerse players in the virtual world, videogames have managed to take the audiences by storm and create one of the most, if not the most, profitable industries up to date (ESA, 2019). Inevitably, this fact created the need for translation and localisation, in order to cater to the needs of an ever-growing target audience. However, in stark contrast with the appeal of videogames, one can argue that little academic research seems to be conducted on the topic of videogame localisation on a global scale (O’Hagan, 2019). The present Master’s dissertation seeks to provide an overview on the topic of videogame localisation in Greek by drawing on examples from League of Legends (2009) and explore whether the choices of the translators can hinder or enhance the player experience and the feeling of immersion. In light of the above, the present dissertation introduces a qualitative study of 10 diverse League of Legends players, who participated in semi-structured interviews in an attempt to volunteer their opinions on the topic by providing feedback on selected quotes in written and audio format.
description: Ανέκαθεν, η ψυχαγωγία αποτελούσε ένα από τα βασικά χαρακτηριστικά της ανθρώπινης φύσης, ενώ το στοιχείο του παιχνιδιού συνέβαλε τα μέγιστα στην ανάπτυξη του πολιτισμού (Huizinga, 1938). Τα βιντεοπαιχνίδια, χάρη στην πολύπλευρη και ιδιαίτερη φύση τους, συνδυαστικά με τη δυνατότητα εμβύθισης (immersion) που παρέχουν στους παίκτες, κατάφεραν να μονοπωλήσουν το ενδιαφέρον του κοινού, γεννώντας σε σύντομο χρονικό διάστημα μια από τις πλέον, αν όχι την πλέον, κερδοφόρα βιομηχανία (ESA, 2019). Αναπόφευκτα, το ολοένα και αυξανόμενο κοινό τους δημιούργησε την ανάγκη για τη μετάφραση ή την επιχώρια προσαρμογή τους. Σε αντίθεση, ωστόσο, με τη δημοτικότητα των βιντεοπαιχνιδιών, η οποία παρουσιάζει σταθερά ανοδική τάση, η επιχώρια προσαρμογή φαίνεται να μην χαίρει ιδιαίτερου ερευνητικού και ακαδημαϊκού ενδιαφέροντος, γεγονός που παρατηρείται σε παγκόσμια κλίμακα (O’Hagan, 2019). Κύριος στόχος της παρούσας μεταπτυχιακής διατριβής είναι η παρουσίαση της φύσης και των προκλήσεων της επιχώριας προσαρμογής για τον ελληνόφωνο χώρο μέσω παραδειγμάτων από το League of Legends, (2009) αλλά και η διερεύνηση του κατά πόσο οι επιλογές των μεταφραστών ή/και ειδικών επιχώριας προσαρμογής μπορούν να ενισχύσουν ή να δυσχεράνουν την εμπειρία των παικτών και το αίσθημα της εμβύθισης. Για την επίτευξη του παραπάνω στόχου, πραγματοποιήθηκε μια ποιοτική μελέτη 10 παικτών League of Legends, οι οποίοι συμμετείχαν εθελοντικά σε μια σειρά από ημί-δομημένες συνεντεύξεις με σκοπό να παρέχουν ανατροφοδότηση πάνω σε επιλεγμένες γραμμές διαλόγου του παιχνιδιού.
pytorch_code_to_load_models
Creators: name: Yuntian Chen
Publisher: name: figshare
Year: 2020
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences

description: This folder includes a Pytorch code called “evaluate.py”. The model files can be directly loaded by this program and generate the corresponding models in Pytorch.
An assessment of the impact of higher yields for maize, soybean and cassava in Indonesia: A multi-market model approach
Creators: name: Sayaka, Bambang
name: Masjidin Siregar, Sumaryanto
name: Croppenstedt, André
name: DiGiuseppe, Stefania
name: Sayaka, Bambang
name: Masjidin Siregar, Sumaryanto
name: Croppenstedt, André
name: DiGiuseppe, Stefania
Publisher: name: Unknown
Year: 2007
Subjects: Crop Production/Industries
Agricultural and Food Policy

description: The changing structure of food demand will generate pressure to diversify away from cereals. It is therefore important that cereal productivity increases be maintained to free land as well as to meet the rising demand for animal feed. This study uses a multi-market model to assess the impact of yield increases for maize, soybean and cassava on cropping patterns, prices, incomes, and other variables of interest to policy makers. Raising maize yield reduces imports and has small but positive side effects in terms of output and consumption of other commodities and in terms of household's welfare. Raising maize yields and then removing rice tariffs adds a large increase in soybean output and rice imports to the maize yield increase scenario. The impact on household income is modest with middle and bottom income households more affected ' and more so in Java. Livestock production and consumption rise strongly and purchasing power of households is much improved. Raising maize, cassava and soybean yields stimulates production of these crops and reduces imports in particular of maize and cassava but not of soybeans. Rice imports also fall strongly. Household welfare is positively affected but by little. Combining maize, cassava and soybean yield increases with a rice tariff elimination has a particularly pronounced effect on soybean production. Livestock production and consumption grow strongly. Rice imports fall very sharply as do maize imports. Household incomes generally fall but the effect is small. Purchasing power on the other hand increases significantly.
description: FAO Document Repository: http://www.fao.org/3/a-ai206e.pdf
Native Point Defects in Mono-- and Bi--layer Phosphorene
Creators: name: Kundu, Sudipta
name: Naik, Mit H.
name: Jain, Manish
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the stability and electronic properties of intrinsic point defects, vacancy and self-interstitial, in mono- and bi-layer phosphorene. We calculate the formation energies, quasiparticle defect states and charge transition levels (CTLs) of these defects using \textit{ab initio} density functional theory (DFT) and GW approximation to the electron self-energy. Using the DFT + GW two paths formalism for studying interstitial in monolayer phosphorene, we show that with the inclusion of electrostatic corrections CTLs can be calculated reliably. Our calculations show that all the native point defects have low formation energies 0.9-1.6 eV in neutral state. Furthermore, we find that vacancy in phosphorene behaves as an acceptor-like defect which can explain the p-type conductivity in phosphorene. On the other hand, interstitial can show both acceptor- and donor-like behaviour.
Ο Μητροπολίτης Μεγάρων και Σαλαμίνος κυρός Βαρθολομαίος Κατσούρης
Creators: name: Σταμπέλος, Πέτρος- Γερμανός Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Εκκλησία της Ελλάδος
Μητρόπολη Μεγάρων
Μητροπολίτης Βαρθολομαίος
Church of Greese
Metropolis of Megara
Archbishop Bartholomew

description: Στα πλαίσια του μεταπτυχιακού προγράμματος «Ελλάδα: Εκκλησιαστική Ιστορία και Πολιτισμός», αποφάσισα ν’ ασχοληθώ κατά τη μελέτη της διπλωματικής μου έρευνας με τον Μητροπολίτη Μεγάρων και Σαλαμίνος κυρό Βαρθολομαίο Κατσούρη , όπως ο τίτλος του θέματος. Σκοπός της παρούσης εργασίας είναι η παρουσίαση της ζωής του, του ποιμαντικού, καθώς και του συγγραφικού του έργου, επειδή είχε συγγράψει αρκετά θεολογικά πονήματα. Δυστυχώς, κατά τη διάρκεια της έρευνας αντιμετώπισα δυσκολίες λόγω έλλειψης πηγών. Συνοψίζοντας , το τελικό συμπέρασμα για τον κυρό Βαρθολομαίο Κατσούρη είναι πως ήταν αδιαμφισβήτητα ένας ικανός, λόγιος και άξιος Μητροπολίτης.
description: The title of this thema is “The former Archbishop of Megara and Salamina, Bartholomew Katsouris”. The purpose of this thema is to presentate the life and the pastoral work of the first Archbishop of the Holy Metropolis of Megara and Salamina. Also, Bartholomew was author of many theological scripts. Unfortunately, during my studying on this research I found many difficulties due to lack of sources about him. Thus, the conclusion I made from my research for the former Archbishop Bartholomew is that he was, definitely, a capable, scholar and worthy Archbishop.
description: Σε συνεργασία με: Κοινωνικής Θεολογίας (Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών)
description: To Tμήμα Ποιμαντικής και Kοινωνικής Θεολογίας του Α.Π.Θ. μετονομάστηκε σε Τμήμα Κοινωνικής Θεολογίας και Χριστιανικού Πολιτισμού σύμφωνα με το ΦΕΚ 5710/24-12-2020
Distributed WWW Programming using (Ciao-)Prolog and the PiLLoW library
Creators: name: Cabeza, Daniel
name: Hermenegildo, Manuel V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences
subject: D.1.3; D.1.6

description: We discuss from a practical point of view a number of issues involved in writing distributed Internet and WWW applications using LP/CLP systems. We describe PiLLoW, a public-domain Internet and WWW programming library for LP/CLP systems that we have designed in order to simplify the process of writing such applications. PiLLoW provides facilities for accessing documents and code on the WWW; parsing, manipulating and generating HTML and XML structured documents and data; producing HTML forms; writing form handlers and CGI-scripts; and processing HTML/XML templates. An important contribution of PiLLoW is to model HTML/XML code (and, thus, the content of WWW pages) as terms. The PiLLoW library has been developed in the context of the Ciao Prolog system, but it has been adapted to a number of popular LP/CLP systems, supporting most of its functionality. We also describe the use of concurrency and a high-level model of client-server interaction, Ciao Prolog's active modules, in the context of WWW programming. We propose a solution for client-side downloading and execution of Prolog code, using generic browsers. Finally, we also provide an overview of related work on the topic.
description: 32 pages, 4 figures
Medium Modification of the Jet Properties
Creators: name: Salgado, C. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the case that a dense medium is created in a heavy ions collision, high-E_t jets are expected to be broadened by medium-modified gluon emission. This broadening is directly related, through geometry, to the energy loss measured in inclusive high-p_t particle suppression. We present here the modifications of jet observables due to the presence of a medium for the case of azimuthal jet energy distributions and k_t-differential multiplicities inside the jets.
description: 4 pages, 3 postscript figures. Proceedings for Quark Matter 2004
title: A vueltas con estilo oral
title: los primeros romances noticieros
titleType: Subtitle
Creators: name: Valenciano, Ana
Publisher: name: IELT - Instituto de Estudos de Literatura e Tradição, NOVA FCSH
Year: 2020

description: Esta comunicación resume los criterios formalizados en su día por Don Ramón Menéndez Pidal, y por otros estudiosos posteriores afines a su escuela, para la delimitación genérica del Romancero Tradicional, tanto de la etapa antigua (ss. XV a XVII) como de la tradición oral moderna. Partiendo de esos principios, se intenta rastrear algunos elementos presentes en los textos documentados en el pasado que pudieron constituir la semilla del llamado estilo tradicional y que reencontramos en las versiones recogidas en el periodo más reciente (ss. XIX-XXI). Para ejemplificar este proceso se utilizan algunos romances de los llamados noticieros que constituirán uno de los próximos volúmenes de la serie Romancero tradicional de las lenguas hispánicas iniciada en vida de Menéndez Pidal.
description: Valenciano, Ana (2020), “A vueltas con estilo oral: los primeros romances noticieros” in Boto, Sandra; Cid, Jesús Antonio e Ferré, Pere (coords.), 'Viejos son, pero no cansan'. Novos Estudos sobre e o Romanceiro, Coimbra - Madrid, Fundación Ramón Menéndez Pidal, Instituto Universitario “Seminario Menéndez Pidal”, Centro de Investigação em Artes e Comunicação, Centro de Literatura Portuguesa e Instituto de Estudos de Literatura e Tradição. ISBN 978-989-8968-06-7
The orbital period distribution of subdwarf B binaries
Creators: name: Morales-Rueda, L.
name: Maxted, P. F. L.
name: Marsh, T. R.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a 3.5 year long campaign to measure orbital periods of subdwarf B (sdB) star binaries. We directly compare our observed orbital period distribution with that predicted by using binary population synthesis. Up to now, most of our systems seem to have been formed through two of the formation channels discussed by Han et al.(2003), i.e. the first and the second common envelope ejection (CE) channels. At this point, thanks to the long baseline of our observations, we are starting to detect also very long orbital period systems. These have probably come from a complete different formation path, the first stable Roche Lobe overflow (RLOF) channel in which the first mass transfer phase is stable. This channel is expected to lead to the formation of very wide binaries with orbital periods ranging between 0.5 to 2000 days.
description: 8 pages, 6 figures. To appear in "Extreme Horizontal Branch Stars and Related Objects", Astrophysics and Space Science, Kluver Academic Publishers, edited by P. F. L. Maxted. Minor changes made after referee's comments
Magnetic field-dependent resistance crossover and logarithmic to non-saturating magnetoresistance in topological insulator Bi$_2$Te$_3$
Creators: name: Nivedan, Anand
name: Das, Kamal
name: Kumar, Sandeep
name: Singh, Arvind
name: Mardanya, Sougata
name: Agarwal, Amit
name: Kumar, Sunil
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report a metal-insulator like transition in single crystalline 3D topological insulator Bi2Te3 at a temperature of 230K in presence of an external magnetic field applied normal to the surface. This transition becomes more prominent at larger magnetic field strength with the residual resistance value increasing linearly with the magnetic field. At low temperature, the magnetic field dependence of the magnetoresistance shows a transition from logarithmic to linear behavior and the onset magnetic field value for this transition decreases with increasing temperature. The logarithmic magnetoresistance indicates the weak anti-localization of the surface Dirac electrons while the high temperature behavior originates from the bulk carriers due to intrinsic impurities. At even higher temperatures beyond~230 K, a completely classical Lorentz model type quadratic behavior of the magnetoresistance is observed. We also show that the experimentally observed anomalies at ~230K in the magneto-transport properties do not originate from any stacking fault in Bi2Te3.
description: 6 figures, 2 appendices
title: El romance de El enamorado y la muerte y otros textos afines en la literatura y el folclore catalanes
Creators: name: Rovira Cerdà, Helena
Publisher: name: IELT - Instituto de Estudos de Literatura e Tradição, NOVA FCSH
Year: 2020

description: Aunque las primeras versiones del romance de El enamorado y la Muerte datan del siglo XIX y se localizan en el dominio lingüístico del catalán, diversos indicios apuntan a un origen castellano que remontaría a finales del siglo XV o poco después. Aunque, en concreto, se ha señalado su fuente de inspiración en una poesía de Juan del Encina (inc. “Yo me estaba reposando, / durmiendo como solía”), las diferencias entre ambas composiciones son tan notables como sus similitudes, lo cual hace presuponer que el romance anónimo se inspira en diversos precedentes, entre los cuales podría hallarse algún texto en el que la Muerte se persona ante la habitación de su víctima y la despierta justo después de que haya gozado de una relación amorosa, onírica o real, como sucede de hecho en la Peregrinació del Venturós Pelegrí. Esta obra catalana seguramente data de finales del siglo XV o inicios del XVI y, sin duda, influyó en un romance a la muerte de Felipe II (inc. “El sol esconde sus rayos, / el resplandor que tenía”), que también se inspira en El enamorado y la Muerte y en otras elegías a la muerte de emperatrices o princesas. Este planto al monarca difunto, que fue publicado en Barcelona, parece escrito por un autor catalán y demuestra que en 1599 El enamorado y la Muerte ya era conocido en Cataluña. Otra canción catalana tradicional, titulada La Mort i la donzella, guarda una estrecha relación con el argumento de El enamorado y la Muerte, aunque su fuente principal se halla en la Representació de la Mort, obra de mediados del siglo XVI atribuida a Jaume de Olesa.
description: Rovira Cerdà, Helena (2020), “El romance de El enamorado y la muerte y otros textos afines en la literatura y el folclore catalanes” in Boto, Sandra; Cid, Jesús Antonio e Ferré, Pere (coords.), 'Viejos son, pero no cansan'. Novos Estudos sobre e o Romanceiro, Coimbra - Madrid, Fundación Ramón Menéndez Pidal, Instituto Universitario “Seminario Menéndez Pidal”, Centro de Investigação em Artes e Comunicação, Centro de Literatura Portuguesa e Instituto de Estudos de Literatura e Tradição. ISBN 978-989-8968-06-7
Rural income generating activities: whatever happened to the institutional vacuum? Evidence from Ghana, Guatemala, Nicaragua and Vietnam
Creators: name: Zezza, Alberto
name: Carletto, Calogero
name: Davis, Benjamin
name: Stamoulis, Kostas
name: Winters, Paul
name: Zezza, Alberto
name: Carletto, Calogero
name: Davis, Benjamin
name: Stamoulis, Kostas
name: Winters, Paul
Publisher: name: Unknown
Year: 2007
Subjects: Agricultural and Food Policy
Community/Rural/Urban Development

description: This paper assesses the current rural development practice against the main trends in recent rural development thinking, based on evidence from four country case studies. While much progress has been made in understanding the need to look beyond only agriculture for the promotion of productive activities in rural areas, and the 'institutional vacuum' consistently identified in the rural non-farm literature is gradually being filled, much remains to be done. One aspect on which more research is particularly needed is the development of better mechanisms to promote productive investment rather than just social investment and to assess the appropriate level ' community, regional, national ' at which to do this.
description: FAO Document Repository: http://www.fao.org/3/a-ai488e.pdf
A 2dF survey of the Small Magellanic Cloud
Creators: name: Evans, C. J.
name: Howarth, I. D.
name: Irwin, M. J.
name: Burnley, A. W.
name: Harries, T. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a catalogue of new spectral types for hot, luminous stars in the Small Magellanic Cloud. The catalogue contains 4161 objects, giving an order of magnitude increase in the number of SMC stars with published spectroscopic classifications. The targets are primarily B- and A-type stars (2862 and 853 objects respectively), with 1 Wolf-Rayet, 139 O-type, and 306 FG stars, sampling the main sequence to ~mid-B. The selection and classification criteria are described, and objects of particular interest are discussed, including UV-selected targets from the Ultraviolet Imaging Telescope (UIT) experiment, Be and B[e] stars, `anomalous A supergiants', and composite-spectrum systems. We examine the incidence of Balmer-line emission, and the relationship between H-gamma equivalent width and absolute magnitude for BA stars.
description: 27 pages, 17 figures (reduced size). Accepted for publication in MNRAS. Both a postscript version with normal res. figs and the full catalogue is available from http://www.ing.iac.es/~cje/2dF.html
Supplementary results from Encoding fear intensity in human sweat
Creators: name: Groot, Jasper H. B. De
name: Kirk, Peter A.
name: Gottfried, Jay A.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: Additional results to "encoding fear intensity in human sweat"
Government Is the Problem? Interrogating the Right Turn in the 1980 US Election
Creators: name: Simmonds, Christopher
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 440811
subject: Political theory and political philosophy
classificationCode: 440803
subject: Comparative government and politics
classificationCode: 441004
subject: Social change
classificationCode: 380103
subject: Economic history

description: Submitted in total fulfillment of the requirements for the degree of Doctor of Philosophy to the School of Humanities and Social Sciences, La Trobe University, Victoria, Australia.
This thesis was a recipient of the Nancy Millis Award for theses of exceptional merit.
Numerical analysis of a time-headway bus route model
Creators: name: Hill, Scott A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: In this paper, we consider a time-headway model, introduced in Physica A 296:320 (2001), for buses on a bus route. By including a simple no-passing rule, we are able to enumerate and study the unstable modes of a homogeneous system. We then discuss the application of the model to realistic scenarios, showing that the range of reasonable parameter values is more restricted than one might imagine. We end by showing that strict stability in a homogeneous bus route requires careful monitoring by each bus of the bus in front of it, but in many cases this is unnecessary because the time it takes for the instability to appear is longer than a bus would normally spend on a route.
description: 11 pages, 11 figures
Understanding the dynamics of food insecurity and vulnerability in Himachal Pradesh
Creators: name: Food Security And Agricultural Projects Analysis Service (ESAF)
name: Food Security And Agricultural Projects Analysis Service (ESAF)
Publisher: name: Unknown
Year: 2007
Subjects: Food Security and Poverty

description: This paper documents the main findings of the vulnerable profiling work carried out in the State of Himachal Pradesh, India, as a mean to support the planning of food security and livelihoods promoting interventions at the state level. A similar study was undertaken in Orissa, India. The paper analyses the main characteristics and causes of food insecurity and vulnerability, seeking to identify who and where the vulnerable and food insecure are, why they are at risk of becoming food insecure and what options exist to reduce this risk. Using the sustainable livelihoods framework and collecting qualitative and quantitative data collection from four selected districts, the paper looks on the vulnerability of five livelihood groups, notably subsistence farming households, marginal commercial farming households, agricultural labouring households, migratory labouring households and pastoralist tribal households. Whilst Himachal Pradesh is comparably less food insecure, the paper shows that the state do face a range of challenges related to undernourishment and malnutrition. Anthropometric measures show that close to every second child under five in HP are underweight and 41 percent of adult women are anaemic, only slightly lower than the national figure. The study finds the main causes of food insecurity and vulnerability include increased fragmentation of land, limited or no access to welfare provisions and public services related to migration, weak infrastructure and lack of accessible credit institutions. Based on the findings of the analysis, the paper identifies key interventions to address the causes of food insecurity and vulnerability in Himachal Pradesh. These include increased investment in irrigation; improved extension services; ensuring social service provision and basic human welfare; and continued assurance of high levels of investment in constructing and maintaining rural infrastructure as a prerequisite for sustainable and broad-based economic growth. Finally, the paper includes recommendations on indicators to be monitored as part of a potential Food Insecurity and Vulnerability Information and Mapping System (FIVIMS) in Himachal Pradesh, focusing on a core set of indicators to be monitored at state and district level.
description: FAO Document Repository: http://www.fao.org/3/a-ah942e.pdf
MSE_loss_exp4
Creators: name: Yuntian Chen
Publisher: name: figshare
Year: 2020
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences

description: This folder contains the MSE loss of three epochs in a group of experiments. For example, exp1_epoch2 represents the MSE loss of the third epoch in the first experiment (epoch is calculated from 0). Each data file contains a matrix with size of 14*13. The 14 rows correspond to the 14 wells in the dataset, and the 13 columns are the 12 kinds of well logs and the average MSE. Specifically, the columns are Young’s modulus E_x and E_y, cohesion C, uniaxial compressive strength UCS, density ρ, tensile strength TS, brittleness index BI_x and BI_y, Poisson’s ratio ν_x and ν_y, neutron porosity NPR, total organic carbon TOC and average MSE from left to right.
Can long-term periodic variability and jet helicity in 3C 120 be explained by jet precession?
Creators: name: Caproni, Anderson
name: Abraham, Zulema
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Optical variability of 3C 120 is discussed in the framework of jet precession. Specifically, we assume that the observed long-term periodic variability is produced by the emission from an underlying jet with a time-dependent boosting factor driven by precession. The differences in the apparent velocities of the different superluminal components in the milliarcsecond jet can also be explained by the precession model as being related to changes in the viewing angle. The evolution of the jet components has been used to determine the parameters of the precession model, which also reproduce the helical structure seen at large scales. Among the possible mechanisms that could produce jet precession, we consider that 3C 120 harbours a super-massive black hole binary system in its nuclear region and that torques induced by misalignment between the accretion disc and the orbital plane of the secondary black hole are responsible for this precession; we estimated upper and lower limits for the black holes masses and their mean separation.
description: 10 pages, 4 figures, accepted for publication in MNRAS
Reaction Cycles of Halogen Species in the Immune Defense: Implications for Human Health and Diseases and the Pathology and Treatment of COVID-19
Creators: name: Lu, Qing-Bin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cell Behavior (q-bio.CB)
subject: Biomolecules (q-bio.BM)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Biological sciences

description: There is no vaccine or specific antiviral treatment for COVID-19. One current focus is drug repurposing research, but those drugs have limited therapeutic efficacies and known adverse effects. The pathology of COVID-19 is essentially unknown. It is therefore challenging to discover a successful treatment to be approved for clinical use. This paper addresses several key biological processes of reactive oxygen, halogen and nitrogen species (ROS, RHS and RNS) that play crucial physiological roles in organisms from plants to humans. These include why superoxide dismutases, the enzymes to catalyze the formation of H2O2, are required for protecting ROS-induced injury in cell metabolism, why the amount of ROS/RNS produced by ionizing radiation at clinically relevant doses is ~1000 fold lower than the endogenous ROS/RNS level routinely produced in the cell and why a low level of endogenous RHS plays a crucial role in phagocytosis for immune defense. Herein we propose a plausible amplification mechanism in immune defense: ozone-depleting-like halogen cyclic reactions enhancing RHS effects are responsible for all the mentioned physiological functions, which are activated by H2O2 and deactivated by NO signaling molecule. Our results show that the reaction cycles can be repeated thousands of times and amplify the RHS pathogen-killing (defense) effects by 100,000 fold in phagocytosis, resembling the cyclic ozone-depleting reactions in the stratosphere. It is unraveled that H2O2 is a required protective signaling molecule (angel) in the defense system for human health and its dysfunction can cause many diseases or conditions such as autoimmune disorders, aging and cancer. We also identify a class of potent drugs for effective treatment of invading pathogens such as HIV and SARS-CoV-2 (COVID-19), cancer and other diseases, and provide a molecular mechanism of action of the drugs or candidates.
description: 18 pages, 4 figures, 1 table
Addressing food insecurity in fragile states: case studies from the Democratic Republic of the Congo, Somalia and Sudan
Creators: name: Alinovi, Luca
name: Hemrich, Günter
name: Russo, Luca
name: Alinovi, Luca
name: Hemrich, Günter
name: Russo, Luca
Publisher: name: Unknown
Year: 2007
Subjects: Food Security and Poverty
Risk and Uncertainty

description: Drawing on case studies from the Democratic Republic of the Congo (DRC), Somalia and Sudan, this paper focuses on policy, programming and institutional issues related to addressing food insecurity in protracted crises and fragile states, with a focus on areas afflicted by conflicts. The case studies illustrate how dysfunctional institutions are at the root of structural food insecurity and show how local people and institutions have been able, to a certain extent, to adapt and cope with the crises. However, the protracted nature of the crises has substantially eroded people's assets and weakened the capacities of traditional safety net systems to provide protection. Against this background, mainstream humanitarian assistance ' which has been the international community's dominant response ' has not been able to address the basic determinants of food security and in particular has not sufficiently supported the positive efforts of local institutions. The case studies illustrate some innovative approaches for addressing food insecurity during protracted crises. They show that while it remains indispensable to ensure neutrality for immediate responses that protect the most vulnerable, it is also crucial to take into account institutional and policy dynamics that support processes to rebuild resilience; create opportunities for strengthening the livelihoods of affected population at the very early stages of the crisis; and develop an adequate basket of interventions to address a variety of needs.
description: FAO Document Repository: http://www.fao.org/3/a-ai028e.pdf
p-torsion elements in local cohomology modules
Creators: name: Singh, Anurag K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics

description: We construct an example where a local cohomology module of a hypersurface has p-torsion elements for every prime integer p, and consequently has infinitely many associated prime ideals. We also answer a related question of Hochster.
Unweighted Matching in Random Graphs
Creators: name: Nelson, Kristina
Publisher: name: The University of British Columbia
Year: 2015

description: We study the application of Edmond’s Blossom algorithm for unweighted matching on random graphs generated with the Erdos-Renyi model. Since its publication in 1965, the blossom algorithm has been the subject of great interest and research, not only in the field of matching theory but also as a linear programming problem. In the first part of this report we introduce the background and prerequisite graph theoretic definitions before describing the operation of the blossom algorithm itself. In the second part of this essay we describe our investigations around the operational running time of the algorithm and attempts to improve this value.
Image-free real-time classification of fast moving objects using 'learned' spatial light modulation and a single-pixel detector
Creators: name: Zhang, Zibang
name: Li, Xiang
name: Yao, Manhong
name: Zheng, Shujun
name: Zheng, Guoan
name: Zhong, Jingang
Publisher: name: arXiv
Year: 2019
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Objects classification generally relies on image acquisition and analysis. Real-time classification of high-speed moving objects is challenging, as both high temporal resolution in image acquisition and low computational complexity in objects classification algorithms are required. Here we propose and experimentally demonstrate an approach for real-time moving objects classification without image acquisition. As objects classification algorithms rely on the feature information of objects, we propose to use spatial light modulation to acquire the feature information directly rather than performing image acquisition followed by features extraction. A convolutional neural network is designed and trained to learn the spatial features of the target objects. The trained network can generate structured patterns for spatial light modulation. Using the resulting structured patterns for spatial light modulation, the feature information of target objects can be compressively encoded into a short light intensity sequence. The resulting one-dimensional signal is collected by a single-pixel detector and fed to the convolutional neural network for objects classification. As experimentally demonstrated, the proposed approach can achieve accurate and real-time classification of fast moving objects. The proposed method has potential applications in the fields where fast moving objects classification in real time and for long duration is required.
title: Erotismo y creación poética en La bastarda y el segador
Creators: name: Piquero, Álvaro
Publisher: name: IELT - Instituto de Estudos de Literatura e Tradição, NOVA FCSH
Year: 2020

description: A pesar de ser un campo de estudio poco fecundado por la crítica romancística, no cabe duda de que algunos romances de la tradición hispánica esconden detrás de sus versos un sutil y perspicaz erotismo. Este trabajo pretende mostrar, de manera resumida, la sugestiva simbología erótica que se puede apreciar en el romance tradicional de La bastarda y el segador. El análisis del romance, conservado en numerosas versiones orales modernas, permitirá conocer más profundamente la innovación léxica y los mecanismos de creación poética utilizados por la cultura popular a lo largo de los siglos.
description: Piquero, Álvaro (2020), “Erotismo y creación poética en La bastarda y el segador” in Boto, Sandra; Cid, Jesús Antonio e Ferré, Pere (coords.), 'Viejos son, pero no cansan'. Novos Estudos sobre e o Romanceiro, Coimbra - Madrid, Fundación Ramón Menéndez Pidal, Instituto Universitario “Seminario Menéndez Pidal”, Centro de Investigação em Artes e Comunicação, Centro de Literatura Portuguesa e Instituto de Estudos de Literatura e Tradição. ISBN 978-989-8968-06-7
XMM-Newton observation of the Chandra Deep Field-South: Statistical treatment of faint source spectra
Creators: name: Streblyanska, A.
name: Bergeron, J.
name: Brunner, H.
name: Finoguenov, A.
name: Hasinger, G.
name: Mainieri, V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present first results of the X-ray spectral analysis of the 500 ksec deep survey obtained with XMM-Newton on the Chandra Deep Field South (CDFS). Statistical distributions of spectral index and intrinsic absorption are derived for a sample containing 70 sources with a count limit of 100 (flux limit in the [2-10] keV band of 8.9 $\times 10^{-16}$ erg cm$^{-2}$ s$^{-1}$), of which 44 have redshift identification. We observe a separation between the type-1 and the type-2 AGN in diagnostics involving different X-ray parameters. Using the subsample with known $z$, we show that this separation between the AGN populations is a consequence of different absorption column densities. The two populations have the same average spectral index, $ = 2 \pm 0.1$. We present integrated spectrum for the most distant type-2 QSO whith strong X-ray absorption and a clear soft excess; we obtained the best fit for these objects with two difference models: a scattering model and a double power law model. We also confirm a progressive hardening for the combined integrated spectra for faint objects which at first was noted by \cite{toz01a}. Our results shown a clear evolution of decrease of $$ with decreasing flux in the hard 2-10 keV band. However, we detect not only a regular increase of $$ for different subsamples of fluxes in comparison with Chandra results, but also an internal discrepancy of the values, if we fitted in the different energy bands.
description: 6 pages, 6 figures. Proceedings of the symposium "The Restless High-Energy Universe", 5-8 May 2003, Amsterdam, The Netherlands
Long-term farming trends: an inquiry using agricultural censuses
Creators: name: Anríquez, Gustavo
name: Bonomi, Genny
name: Anríquez, Gustavo
name: Bonomi, Genny
Publisher: name: Unknown
Year: 2007
Subjects: Agricultural and Food Policy

description: This paper provides a long-term and global view at current farming trends by analyzing a specially created database of farming characteristics of 17 countries across 43 different agricultural censuses representing the different developing regions of the world. The study shows that while agricultural land appears to be a constraint in central and East Asia, it has been under expansion in Latin America, Northern Africa, and most of sub-Saharan Africa. We also estimate that 9 out of 10 farms are 'small' (i.e. smaller than 2 ha). These farms are more specialized in staple crops than their larger counterparts, and exhibit slower productivity growth.
description: FAO Document Repository: http://www.fao.org/3/a-ah856e.pdf
Συστηματική ανασκόπηση των Διατιτρώντων Αρτηριακών Κλάδων του έξω διαμερίσματος της κνήμης
Creators: name: Λιγωμένου, Θεοδώρα Αλέξανδρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Κάτω άκρο
Αρτηριακοί κλάδοι
Πτωματική μελέτη
Leg
Perforators
Cadaver study

description: Η αγγείωση του δέρματος της κνήμης, πραγματοποιείται από κλάδους της περονιαίας αρτηρίας. Τα αγγεία αυτά είναι γνωστά ως διατιτρώντες κλάδοι της περονιαίας αρτηρίας και ταξινομούνται σε δερματικούς, μυοδερματικούς, διαφραγματοδερματικούς και περιοστεοδερματικούς διατιτρώντες κλάδους. Η γνώση της μορφομετρίας και της κατανομής των διατιτρώντων αρτηριακών κλάδων του έξω διαμερίσματος της κνήμης, τόσο σε επίπεδο τυπικής όσο και άτυπης ανατομίας (παραλλαγές τους) έχει μεγάλη πρακτική σημασία στο σχεδιασμό και την επιτυχία του οστεοδερματικού περονιαίου κρημνού. Το αντικείμενο της μελέτης μου επικεντρώνεται στο έξω περονιαίο διαμέρισμα, το οποίο αφορίζεται μεταξύ των δύο περονιαίων μεσομϋιων διαφραγμάτων, το οστό της περόνης και την κνημιαία περιτονία. Περιέχει τους πρόσθιους μυς της κνήμης, το εν τω βάθει περονιαίο νεύρο και την πρόσθια κνημιαία αρτηρία και φλέβα. Ειδικότερα αναλύονται οι διατιτρόντες αρτηριακοί κλάδοι του έξω διαμερίσματος της κνήμης.
description: The vascularization of the tibial skin is carried out by branches of the peroneal artery. These vessels are known as perforating branches or perforators of the peroneal artery and are classified into cutaneous, musculocutaneous, septocutaneous and periosteocutaneous perforators. The knowledge of the morphometry and distribution of the arterial perforators of the external tibial compartment, both at the level of typical and atypical anatomy (variations) is of great practical importance in the design and success of the osteocutaneous peroneal flap. The subject of this study focuses on the lateral fibular compartment of the leg, which is located between the two fibular intermuscular septum, the fibula(bone) and the tibial fascia. It contains the anterior tibial muscles, the deep peroneal nerve and the anterior tibial artery and vein.
An exponential shape function for wormholes in modified gravity
Creators: name: Moraes, P. H. R. S.
name: Sahoo, Pradyumn Kumar
name: Kulkarni, Shreyas Sunil
name: Agarwal, Shivaank
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Here, we propose a new exponential shape function in wormhole geometry within modified gravity. The energy conditions and equation of state parameter are obtained. The radial and tangential null energy conditions are validated, as well as the weak energy condition, which indicates the absence of exotic matter due to modified gravity allied with such a new proposal.
description: 5pages, 4 figures
Long-term rural demographic trends
Creators: name: Anríquez, Gustavo
name: Anríquez, Gustavo
Publisher: name: Unknown
Year: 2007
Subjects: Community/Rural/Urban Development

description: This paper studies rural demographic trends at the global level with an analysis of a specially prepared database of population age/gender/rurality tables from population censuses. The focus is to identify the main demographic differences in the evolution of rural and urban populations. Among the main findings of this study, we report that with the exception of Sub-Saharan Africa there is no rural feminization. Also, rural ageing is not observed at aggregate levels in rural regions of the developing world. Perhaps the main adverse demographic trend of rural populations is the high dependency ratios brought about by higher fertility rates. This paper also carries out a census-based cross-country net-migration study identifying the main characteristics of rural out-migration in Latin America, and searches for common threads in East Africa. This analysis shows important improvements of welfare indicators and asset accumulation in rural Latin America (promoting an upward convergence of poorer and richer areas of countries), partially explained by migration. We did not find common characteristics in rural out-migration in East Africa, but report that education is the key asset that enables out-migration from poorer rural communities in East Africa.
description: FAO Document Repository: http://www.fao.org/3/a-ah855e.pdf
A Linear LMP Model for Active and Reactive Power with Power Loss
Creators: name: Yu, Yanghao
name: Hou, Qingchun
name: Ge, Yi
name: Liu, Guojing
name: Zhang, Ning
Publisher: name: arXiv
Year: 2019
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Pricing the reactive power is more necessary than ever before because of the increasing challenge of renewable energy integration on reactive power balance and voltage control. However, reactive power price is hard to be efficiently calculated because of the non-linear nature of optimal AC power flow equation. This paper proposes a linear model to calculate active and reactive power LMP simultaneously considering power loss. Firstly, a linearized AC power flow equation is proposed based on an augmented Generation Shift Distribution Factors (GSDF) matrix. Secondly, a linearized LMP model is derived using GSDF and loss factors. The formulation of LMP is further decomposed into four components: energy, congestion, voltage limitation and power loss. Finally, an iterate algorithm is proposed for calculating LMP with the proposed model. The performance of the proposed model is validated by the IEEE-118 bus system.
description: 6 pages, 6 figures, accepted by IEEE Sustainable Power & Energy Conference (iSPEC2019)