cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
In-situ Particle Acceleration in Collisionless Shocks
Creators: name: Hededal, C. B.
name: Haugboelle, T.
name: Frederiksen, J. T.
name: Nordlund, Å.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The outflows from gamma ray bursts, active galactic nuclei and relativistic jets in general interact with the surrounding media through collisionless shocks. With three dimensional relativistic particle-in-cell simulations we investigate such shocks. The results from these experiments show that small--scale magnetic filaments with strengths of up to percents of equipartition are generated and that electrons are accelerated to power law distributions N(E)~E^{-p} in the vicinity of the filaments through a new acceleration mechanism. The acceleration is locally confined, instantaneous and differs from recursive acceleration processes such as Fermi acceleration. We find that the proposed acceleration mechanism competes with thermalization and becomes important at high Lorentz factors.
description: 4 pages, 2 figures, submitted to Il nuovo cimento (4th Workshop Gamma-Ray Bursts in the Afterglow Era, Rome, 18-22 October 2004)
ระบบขนส่งสาธารณะสำหรับผู้สูงวัย...นโยบายที่ถูกเมิน?
Creators: name: ไวพจน์ กุลาชัย
Publisher: name: สำนักวิทยบริการ มหาวิทยาลัยสงขลานครินทร์ วิทยาเขตปัตตานี
Year: 2015
Subjects: การขนส่ง, นโยบายสาธารณะ, ผู้สูงวัย, transportation, public policy, aging people

description: 3, 26, วารสารวิทยบริการ มหาวิทยาลัยสงขลานครินทร์
การพัฒนาองค์การแห่งการเรียนรู้ของมหาวิทยาลัยสงขลานครินทร์
Creators: name: สมชาย รัตนคช
name: ผ่องศรี วาณิชย์ศุภวงศ์
name: เอกรินทร์ สังข์ทอง
name: ชวลิต เกิดทิพย์
Publisher: name: สำนักวิทยบริการ มหาวิทยาลัยสงขลานครินทร์ วิทยาเขตปัตตานี
Year: 2015
Subjects: องค์การแห่งการเรียนรู้, มหาวิทยาลัยสงขลานครินทร์, learning organization, Prince of Songkla University

description: 3, 26, วารสารวิทยบริการ มหาวิทยาลัยสงขลานครินทร์
Varying Constants
Creators: name: Barrow, John D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We review properties of theories for the variation of the gravitation and fine structure 'constants'. We highlight some general features of the cosmological models that exist in these theories with reference to recent quasar data that are consistent with time-variation in the fine structure 'constant' since a redshift of 3.5. The behaviour of a simple class of varying-alpha cosmologies is outlined in the light of all the observational constraints.
description: 16 pages, no figures. Talk delivered at the Royal Society Discussion Meeting on 'The Fundamental Constants of Physics, Precision Measurements and the Base Units of SI', London, Feb. 14-15 (2005)
Αστική ευθύνη από ελαττωματικό εμβόλιο
Creators: name: Τσιριγώτη, Καλλιόπη Αργυρώ Αρσενίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Αστική ευθύνη
Ελαττωματικό εμβόλιο
Εμβολιασμοί
Civil liability
Defective vaccine
Vaccinations

description: Η παρούσα εργασία σκοπό έχει να αναπτύξει το ζήτημα της αστικής ευθύνης που είναι πιθανό να ανακύψει από την παραγωγή ή χορήγηση ελαττωματικού εμβολίου. Τα εμβόλια είναι σκευάσματα που ενεργοποιούν την ανοσιακή απόκριση ενός οργανισμού, προκειμένου αυτός να αμυνθεί έναντι λοιμωδών νόσων, κυρίως από μικρόβια. Ως ουσίες που χορηγούνται για αυτό το σκοπό, ήτοι την πρόληψη και την προαγωγή της δημόσιας υγείας, αποτελούν μεν κοινωνικά αγαθά, αλλά ταυτόχρονα και προϊόντα που τίθενται εντός των συναλλαγών και διέπονται από κανόνες για την παραγωγή και διάθεσή τους. Διερευνάται η αστική ευθύνη που είναι πιθανό να προκύψει από σφάλματα που, είτε εμφιλοχώρησαν κατά το στάδιο των κλινικών δοκιμών, είτε προέκυψαν από ελάττωμα του σκευάσματος (με συνακόλουθη ευθύνη του παραγωγού του), αλλά και η αστική ευθύνη του Δημοσίου που υπό προϋποθέσεις ενεργοποιείται, όταν επέλθει ένα υπέρμετρα επιβλαβές αποτέλεσμα από εμβολιασμό που το ίδιο το κράτος τον προέκρινε ως υποχρεωτικό. Παρουσιάζονται συναφείς δικαστικές αποφάσεις που αφορούν σε αποζημίωση κατόπιν εμβολιασμού είτε επί τη βάσει ελαττωματικότητας σκευάσματος, είτε από εμβολιασμό που προκάλεσε υπέρμετρα δυσμενείς συνέπειες καθώς, όπως και με κάθε φάρμακο, έτσι και με την χορήγηση εμβολίου είναι πιθανή η εμφάνιση παρενεργειών. Εξετάζεται, τέλος, και το ζήτημα της υποχρεωτικότητας ή μη των εμβολίων και ο τρόπος που η διάκριση επιδρά στην προαναφερθείσα αστική ευθύνη.
description: The aim of the present thesis is to analyse the complex issue of civil liability that is likely to arise from the production or administration of a defective vaccine. Vaccines are substances activating the immune response of an organism, in order to defend itself against infectious diseases and bacteria. As substances that are administered for this purpose, i.e., the prevention and promotion of public health, they constitute social goods, but, simultaneously, commercial goods that are trading on markets and are therefore governed by rules for their production and distribution. Key legal aspects presented, regarding the civil liability, are among others: errors that occurred during the clinical trials stage, liability of the producer of a defective product, as well as the civil liability of the State, that is activated under certain conditions (e.g., when an excessively harmful result occurs from vaccination that the State itself declared as mandatory). Related court decisions concerning compensation after harmful vaccination are presented, being based either on the matter of a defective vaccine, or on a vaccination that caused serious adverse events, such as death (since, as with any medicine, side effects can possibly arise after the administration of a vaccine). Finally, the issue of mandatory or non-mandatory vaccination and the way this categorisation affects civil liability is also reviewed.
Spin current and accumulation generated by spin Hall insulator
Creators: name: Onoda, Masaru
name: Nagaosa, Naoto
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin current and accumulation generated by the electric field in spin Hall insulator (SHI) are investigated theoretically in terms of the Keldysh formalism. In contrast to the quantum Hall system, there are no massless edge modes in general. The spin current is generated near the contacts to the electrodes by the hybridization between the metallic states and the conduction/valence bands of the SHI, but is truncated by the sink and source of the spin. However, one can produce the spin current flowing out to the conductors, which is attached to the SHI, and also the spin accumulation there due to the leakage charge current which breaks the time-reversal symmetry.
description: 5 pages, 5 figures, REVTeX
Many-to-One Matching when Colleagues Matter
Creators: name: Revilla, Pablo
name: Revilla, Pablo
Publisher: name: Unknown
Year: 2007
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: many-to-one matching
subject: hedonic
subject: coalitions
subject: stability
subject: colleagues

description: This paper studies many-to-one matching market in which each agent's preferences not only depend on the institution that hires her, but also on the group of her colleagues, which are matched to the same institution. With an unrestricted domain of preferences the non-emptiness of the core is not guaranteed. Under certain conditions on agents' preferences, we show that two possible situations in which, at least, one stable allocation exists, emerge. The first condition, called Group Togetherness, reflects real-life situations in which agents are more concerned about an acceptable set of colleagues than about the firm hiring them. The second one, Common Best Colleague, refers to markets in which a workers' ranking is accepted by workers and firms present in such markets.
การวิเคราะห์องค์ประกอบเชิงยืนยันการรับรู้คุณภาพการบริการของสถาบันอุดมศึกษาในกรุงเทพมหานคร
Creators: name: สุริยะ บุตรไธสงค์
Publisher: name: สำนักวิทยบริการ มหาวิทยาลัยสงขลานครินทร์ วิทยาเขตปัตตานี
Year: 2015
Subjects: คุณภาพการบริการ, การรับรู้, การวิเคราะห์องค์ประกอบเชิงยืนยัน, service quality, perception, confirmatory factor analysis

description: 3, 26, วารสารวิทยบริการ มหาวิทยาลัยสงขลานครินทร์
Entanglement in bosonic systems
Creators: name: Skrøvseth, Stein Olav
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a technique to resolve a Gaussian density matrix and its time evolution through known expectation values in position and momentum. Further we find the full spectrum of this density matrix and apply the technique to a chain of harmonic oscillators to find agreement with conformal field theory in this domain. We also observe that a non-conformal state has a divergent entanglement entropy.
description: 7 pages, 6 figures
Efficient Open World Reasoning for Planning
Creators: name: Babaian, Tamara
name: Schmolze, James G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: I.2.4; I.2.8; F.4.1; F.2.2

description: We consider the problem of reasoning and planning with incomplete knowledge and deterministic actions. We introduce a knowledge representation scheme called PSIPLAN that can effectively represent incompleteness of an agent's knowledge while allowing for sound, complete and tractable entailment in domains where the set of all objects is either unknown or infinite. We present a procedure for state update resulting from taking an action in PSIPLAN that is correct, complete and has only polynomial complexity. State update is performed without considering the set of all possible worlds corresponding to the knowledge state. As a result, planning with PSIPLAN is done without direct manipulation of possible worlds. PSIPLAN representation underlies the PSIPOP planning algorithm that handles quantified goals with or without exceptions that no other domain independent planner has been shown to achieve. PSIPLAN has been implemented in Common Lisp and used in an application on planning in a collaborative interface.
description: 39 pages, 13 figures. to appear in Logical Methods in Computer Science
A decaying neutralino as dark matter and its gamma ray spectrum
Creators: name: Aboubrahim, Amin
name: Ibrahim, Tarek
name: Klasen, Michael
name: Nath, Pran
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: It is shown that a decaying neutralino in a supergravity unified framework is a viable candidate for dark matter. Such a situation arises in the presence of a hidden sector with ultraweak couplings to the visible sector where the neutralino can decay into the hidden sector's lightest supersymmetric particle (LSP) with a lifetime larger than the lifetime of the universe. We present a concrete model where the MSSM/SUGRA is extended to include a hidden sector comprised of $U(1)_{X_1} \times U(1)_{X_2}$ gauge sector and the LSP of the hidden sector is a neutralino which is lighter than the LSP neutralino of the visible sector. We compute the loop suppressed radiative decay of the visible sector neutralino into the neutralino of the hidden sector and show that the decay can occur with a lifetime larger than the age of the universe. The decaying neutralino can be probed by indirect detection experiments, specifically by its signature decay into the hidden sector neutralino and an energetic gamma ray photon. Such a gamma ray can be searched for with improved sensitivity at Fermi-LAT and by future experiments such as the Square Kilometer Array (SKA) and the Cherenkov Telescope Array (CTA). We present several benchmarks which have a natural suppression of the hadronic channels from dark matter annihilation and decays and consistent with measurements of the antiproton background.
description: 29 pages, 3 tables and 4 figures
Network Learning and Innovation in SME Formal Networks
Creators: name: Deiters, Jivka
name: Schiefer, Gerhard
Publisher: name: CentMA
Year: 2013
Subjects: Network learning; network innovation; formal networks

description: The driver for this paper is the need to better understand the potential for learning and innovation that networks can
provide especially for small and medium sized enterprises (SMEs) which comprise by far the majority of enterprises in the food sector. With the challenges the food sector is facing in the near future, learning and innovation or more focused, as it is being discussed in the paper, ‘learning for innovation’ are not just opportunities but pre‐conditions for the sustainability of the sector. Network initiatives that could provide appropriate support involve social interaction and knowledge exchange, learning, competence development, and coordination (organization) and management of implementation. The analysis identifies case studies in any of these orientations which serve different stages of the innovation process: invention and implementation. The variety of network case studies cover networks linked to a focus group for training, research, or
consulting, networks dealing with focused market oriented product or process development, promotional networks, and networks for open exchange and social networking.
description: International Journal on Food System Dynamics, Vol 3, No 3 (2012): Special issue on networks and innovation
Rainbow Nambu-Goldstone modes under a shear flow
Creators: name: Minami, Yuki
name: Nakano, Hiroyoshi
name: Hidaka, Yoshimasa
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study an $O(N)$ scalar model under shear flow and its Nambu-Goldstone modes associated with spontaneous symmetry breaking $O(N) \to O(N-1)$. We find that the Nambu-Goldstone mode splits into an infinite number of gapless modes, which we call the rainbow Nambu-Goldstone modes. They have different group velocities and the fractional dispersion relation $ω\sim k_1^{2/3}$, where $k_1$ is the wavenumber along the flow. Such behaviors do not have counterparts in an equilibrium state.
description: 7pages, 3 figures, accepted version in PRL
XORIJIY INVESTORLARNI KAPITAL BOZORI ORQALI KAPITAL JALB QILISHNING JAHON TAJRIBASI
Creators: name: Xoshimov, Toxirjon
Publisher: name: Zenodo
Year: 2024

description: Kapital jalb qilishda fond bozorining ahamiyati va o‘rni haqida to‘xtalishdan avval kapital atamasining mohiyatiga to‘xtalib o‘tamiz. Kapital atamasiga o‘zbek tilining izohli lug‘atida «(nem. Kapital; lot. Capitalis - bosh, asosiy), sarmoya - keng ma’noda - o‘z egasiga daromad keltirish xususiyatiga ega bo‘lgan jami vositalar va mablag‘lar; yangi qiymat keltiruvchi, o‘zini o‘zi ko‘paytiruvchi qiymat. Tovarlar va xizmatlar ishlab chiqarish uchun kishilar tomonidan yaratilgan resurslar; tor ma’noda — ishlab chiqarish vositalari ko‘rinishidagi ishga qo‘yilgan, ishlab turgan daromad manbai»[1] - deb ta’rif berilgan.

[1]Ўэбекистон миллий энциклопедияси- http://n.ziyouz.com/kutubxona.
Geometric phases of scattering states in a ring geometry: adiabatic pumping in mesoscopic devices
Creators: name: Zhou, Huan-Qiang
name: Lundin, Urban
name: Cho, Sam Young
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Geometric phases of scattering states in a ring geometry are studied based on a variant of the adiabatic theorem. Three time scales, i.e., the adiabatic period, the system time and the dwell time, associated with adiabatic scattering in a ring geometry plays a crucial role in determining geometric phases, in contrast to only two time scales, i.e., the adiabatic period and the dwell time, in an open system. We derive a formula connecting the gauge invariant geometric phases acquired by time-reversed scattering states and the circulating (pumping) current. A numerical calculation shows that the effect of the geometric phases is observable in a nanoscale electronic device.
description: 9 pages, 3 figures
The Implementation of a Quality Management Standard in a Food SME: A Network Learning Perspective
Creators: name: Abdirahman, Zam-Zam
name: Sauvée, Loic
Publisher: name: CentMA
Year: 2013
Subjects: food SME; innovation; learning; network; quality management standard

description: In the modern agrifood economies, the development of quality management standards is crucial, and food small and medium enterprises (SMEs) usually face difficulties in implementing them. In this context, the aim of the article is two‐fold. Firstly it is to craft an original analytical framework in line with the literature on innovation networks and related learning effects specifically devoted to the study of quality management standards implementation. Secondly the objective of the article is to apply this framework to a specific food SME case in order to test it and to identify the key network learning
effects that occur during the implementation of a quality management standard, namely the ISO 22000 standard for food safety. From this research, the practical output will be to propose tools to enhance food SMEs’ innovative capacity, through an improvement of their insertion in active formal and/or informal innovation networks. These specific tools will be especially targeted towards the strengthening of learning processes between the SME and the partners involved in the implementation.
description: International Journal on Food System Dynamics, Vol 3, No 3 (2012): Special issue on networks and innovation
Position Based Layer Routing Protocol (PBLRP) for Ad Hoc Networks
Creators: name: Lu, Mi
Publisher: name: figshare
Year: 2021
Subjects: subject: 100503 Computer Communications Networks
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 80503 Networking and Communications
subject: FOS: Computer and information sciences

description: An ad-hoc network is a collection of wireless mobile hosts without the required intervention of any centralized Access Point. In this paper, a new routing method, termed Position Based Layer Routing Protocol (PBLRP), is presented.
The Role of Network Administrative Organizations in the Development of Social Capital in Inter‐Organizational Food Networks
Creators: name: Lefebvre, Virginie M.
name: Molnár, Adrienn
name: Gellynck, Xavier
Publisher: name: CentMA
Year: 2013
Subjects: Inter‐organizational networks; social capital; network management; network administrative organization

description: This paper is concerned with the role of network administrative organizations (NAOs) in the development of social capital in inter‐organizational networks aiming at supporting their members to innovate in the food sector through interacting with one another. A multi‐case study approach is used whereby three Belgian inter‐organizational networks are investigated i.e. Wagralim, Réseau‐Club and Flanders Food. Our study shows that there are many options available to NAOs to build social capital within the networks they are responsible for; options which we propose to categorize in three main distinct groups: creation of boundary objects, careful selection of members and effective communication.
description: International Journal on Food System Dynamics, Vol 3, No 3 (2012): Special issue on networks and innovation
The Computational Difficulty of Bribery in Qualitative Coalitional Games
Creators: name: Dowell, Andrew J.
name: Wooldridge, Michael
name: McBurney, Peter
name: Dowell, Andrew J.
name: Wooldridge, Michael
name: McBurney, Peter
Publisher: name: Unknown
Year: 2007
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Bribery
subject: Coalition Formation
subject: Computational Complexity

description: Qualitative coalitional games (QCG) are representations of coalitional games in which self interested agents, each with their own individual goals, group together in order to achieve a set of goals which satisfy all the agents within that group. In such a representation, it is the strategy of the agents to find the best coalition to join. Previous work into QCGs has investigated the computational complexity of determining which is the best coalition to join. We plan to expand on this work by investigating the computational complexity of computing agent power in QCGs as well as by showing that insincere strategies, particularly bribery, are possible when the envy-freeness assumption is removed but that it is computationally difficult to identify the best agents to bribe.
Seyfert galaxies in the local Universe (z$\leq$ 0.1): the average X-ray spectrum as seen by $BeppoSAX$
Creators: name: Dadina, Mauro
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The $BeppoSAX$ archive is currently the largest reservoir of high sensitivity simultaneous soft and hard-X ray data of Seyfert galaxies. From this database all the Seyfert galaxies (105 objects of which 43 are type I and 62 are type II) with redshift lower than 0.1 have been selected and analyzed in a homogeneous way (Dadina 2007). The X-ray data so collected allow to infer the average spectral properties of nearby Seyfert galaxies included in the original sample and, most notably: the photon index ($Γ$$\sim$1.8), the high-energy cut-off (Ec$\sim$290 keV), and the relative amount of reflection (R$\sim$1.0). The data have been also used to test some assumptions of the unified scheme for the AGN. The distributions of the isotropic indicators (photon index, relative amount of reflection, high-energy cut-off and narrow FeK$α$ energy centroid) are similar in type I and type II objects while the absorbing column and the iron line equivalent width significantly differ between the two classes of active galactic nuclei. Confirming previous results, the narrow FeK$α$ line is consistent, in Seyfert 2, with being produced in the same matter responsible for the observed obscuration. These results, thus, support the basic picture of the unified model. Moreover, the presence of a X-ray Baldwin effect in Seyfert 1 has been here measured using the 20-100 keV luminosity (EW$\propto$L(20-100)$^{-0.22\pm0.05}$). Finally, the possible presence of a correlation between the photon index and the amount of reflection is confirmed thus indicating thermal Comptonization as the most likely origin of the high energy emission for the active galactic nuclei included in the original sample.
description: accepted for publication on A&A
Role of relaxation in spin Hall effect
Creators: name: Onoda, Masaru
name: Nagaosa, Naoto
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The role of the relaxation due to the impurity scattering and/or the contacts to leads/electrodes are studied for the spin Hall effect (SHE). Relaxation is essential to attain the steady state and also to the spin accumulation, but has been considered to be harmful for the intrinsic SHE (ISHE). These issues are examined quantitatively on two types of 2D models, i.e., (a) Rashba model for $n$-type GaAs, and (b) Luttinger model for $p$-type GaAs. It is found that ISHE is robust against the realistic strength of the disorder producing the observable amount of the spin accumulation. Especially in model (b) the spin current and the accumulation are an order of magnitude larger than those in model (a). Experimental observations are discussed quantitatively from these results.
description: 5 pages, 4 figures, REVTeX
Cosmic ray positrons from compact binary millisecond pulsars
Creators: name: Linares, Manuel
name: Kachelriess, Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A new population of neutron stars has emerged during the last decade: compact binary millisecond pulsars (CBMSPs). Because these pulsars and their companion stars are in tight orbits with typical separations of $10^{11}$ cm, their winds interact strongly forming an intrabinary shock. Electron-positron pairs reaccelerated at the shock can reach energies of about 10 TeV, which makes this new population a potential source of GeV-TeV cosmic ray positrons. We present an analytical model for the fluxes and spectra of positrons from intrabinary shocks of CBMSPs. We find that the minimum energy $E_{\min}$ of the pairs that enter the shock is critical to quantify the energy spectrum with which positrons are injected into the interstellar medium. We measure for the first time the Galactic scale height of CBMSPs, $z_e=0.4\pm0.1$ kpc, after correcting for an observational bias against finding them close to the Galactic plane. From this, we estimate a local density of 5-9 kpc$^{-3}$ and an extrapolated total of 2-7 thousand CBMSPs in the Galaxy. We then propagate the pairs in the isotropic diffusion approximation and find that the positron flux from the total population is about two times higher than that from the 52 currently known systems. For $E_{\min}$ between 1 and 50 GeV, our model predicts only a minor contribution from CBMSPs to the diffuse positron flux at 100 GeV observed at Earth. We also quantify the effects of anisotropic transport due to the ordered Galactic magnetic field, which can change the diffuse flux from nearby sources drastically. Finally, we find that a single "hidden" CBMSP close to the Galactic plane can yield a positron flux comparable to the AMS-02 measurements at 600 GeV if its line-of-sight to Earth is along the ordered Galactic field lines, while its combined electron and positron flux at higher energies would be close to the measurements of CALET, DAMPE and Fermi-LAT.
description: Matches version published in JCAP, after minor corrections. Added acknowledgements to the PHAROS COST Action (CA16214) and to the Spanish Ministry of Science, Innovation and Universities (grant CAS19/00228). 31 pages, 10 figures, 5 tables
Uncertainty and the Double Dividend Hypothesis
Creators: name: Sartzetakis, Eftichios S.
name: Tsigaris, Panagiotis D.
name: Sartzetakis, Eftichios S.
name: Tsigaris, Panagiotis D.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Labor and Human Capital
subject: Double Dividend Hypothesis
subject: Environmental Taxation
subject: Labor Income Taxation
subject: Uncertainty
subject: Tax Incidence Analysis

description: This paper examines the double dividend hypothesis in the presence of labour income uncertainty. Empirical evidence shows that uncertainty over labour income is particularly significant in developing, while not negligible in developed countries. Under uncertainty, and assuming incomplete capital markets, the tax system plays a role in providing social insurance and a green tax reform influences its effectiveness. We show that the increase in environmental tax reduces consumption risk while the balanced budget decrease in labour income tax increases income risk. We find that the total welfare effect of a green tax reform differs substantially from the case of certainty. The critical parameters determining the existence of a second dividend are the lump sum transfers, the relative substitutability of the two goods for leisure and the initial tax rates relative to their optimal that determine also the response of labour supply to a change in the tax mix.
Coordinating Clusters: A Cross Sectoral Study of Cluster Organization Functions in The Netherlands
Creators: name: Garbade, Philipp J.P.
name: Fortuin, Frances T.J.M.
name: Omta, Onno
Publisher: name: CentMA
Year: 2013
Subjects: cluster organization; regional innovation system; inter‐sectoral comparison

description: The present paper aims at answering the question how cluster organization functions are implemented in a high‐tech, a medium to high‐tech and a low to medium‐tech cluster. Data were collected by semi‐structured interviews from three clusters in the Netherlands, an agri‐food cluster (as an example of a low to medium‐tech cluster), a green biotech cluster (medium to high‐tech) and a high‐tech cluster. Concerning the cluster organization functions a number of similarities were found. For all three clusters it can be concluded that the network support function is considered to be very important. Sector independence can further be found concerning the innovation process support function, specifically regarding the promotion of the region as an attractive living and working area for highly qualified employees. The results also show a
number of clear differences among the investigated clusters. Only in the low‐to‐medium tech agri‐food cluster there was a clear need for internationalization support for SMEs to reach foreign markets. Only in the green biotech cluster the demand articulation was focused on the region where the cluster is based, which stands in contrast to the highly international orientation of the member companies. Only in the high‐tech innovation cluster technology road mapping was extensively used. This powerful tool, developed to align the innovation process at the company and sector level, impacted further on the execution of the demand articulation/ network formation support functions, and could also be helpful for the green biotech and the agri‐food clusters. Throughout the paper different cluster categorization schemes are besides the tech level are applied and give insights on their limitations and how to possibly deal with them in inter sectorial cluster comparison research.
description: International Journal on Food System Dynamics, Vol 3, No 3 (2012): Special issue on networks and innovation
A Stochastic Multiple Players Multi-Issues Bargaining Model for the Piave River Basin
Creators: name: Sgobbi, Alessandra
name: Carraro, Carlo
name: Sgobbi, Alessandra
name: Carraro, Carlo
Publisher: name: Unknown
Year: 2007
Subjects: subject: Environmental Economics and Policy
subject: Bargaining
subject: Non-Cooperative Game Theory
subject: Simulation Models
subject: Uncertainty

description: The objective of this paper is to investigate the usefulness of non-cooperative bargaining theory for the analysis of negotiations on water allocation and management. We explore the impacts of different economic incentives, a stochastic environment and varying individual preferences on players' strategies and equilibrium outcomes through numerical simulations of a multilateral, multiple issues, non-cooperative bargaining model of water allocation in the Piave River Basin, in the North East of Italy. Players negotiate in an alternating-offer manner over the sharing of water resources (quantity and quality). Exogenous uncertainty over the size of the negotiated amount of water is introduced to capture the fact that water availability is not known with certainty to negotiating players. We construct the players' objective function with their direct input. We then test the applicability of our multiple players, multi-issues, stochastic framework to a specific water allocation problem and conduct comparative static analyses to assess sources of bargaining power. Finally, we explore the implications of different attitudes and beliefs over water availability.
The nomad element
Creators: name: Whalen, James H.
Publisher: name: University of British Columbia
Year: 2009

description: The E(var)45-19 mutation of Drosophila melanogaster was isolated in a genetic screen for P-element induced enhancers of the variegating rearrangement, wm4. Remobilization of the P-element in E(var)45-19 resulted in a loss of its ability to enhance position-effect variegation (PEV) of wm4, indicating that the P-element in this mutant resulted in the E(var) phenotype. An allele of E(var)45-19, Su(var)r27, was isolated following mobilization of the P-element. Su(var)r27 was demonstrated to have sex-specific effects on the variegating rearrangements wm4 and bwVDe2. In addition to its effect on PEV, Su(var)r27 was shown to enhance the mutant phenotype associated with the retroelement-induced allele wbl, suggesting that this locus is involved in the regulation of both chromatin structure and retroelement expression. The P-element insert in E(var)45-19 was located in cytogenetic region 63A by in situ hybridization. The P-element was shown to be inserted into the 3'LTR of a novel retrovirus-like transposon, which I named nomad. DNA sequence analysis showed that nomad contained three long ORFs that were similar to the gag, pol and env genes of retroviruses and the copia-like elements of Drososphila melanogaster. The nomad element terminates with 519 base pair long terminal repeats, each of which contains eukaryotic consensus transcription initiation and termination signals, nomad elements are located at approximately 10-15 sites within the euchromatic arms of the genome and at the chromocenter as shown by in situ hybridization. The host DNA sequence TANA was duplicated on each side of the nomad element and appears to be a prefered target site for insertion of nomad elements. Analysis of the zinc finger motif in the pol gene product of retrotransposons known to have target site preference suggests involvement of the integrase subunit in target site selection for retrotransposons that display insert site specificity. A comparison of the predicted amino acid sequence of the pol-like genes of several known retrotransposons was made and the phylogenetic relationship between nomad and other retrovirus-like mobile elements was determined. It was clear from this conceptual protein analysis and from analysis of structural characteristics that retrotransposons of the gypsy class can be generally classified as members of one of two distinct groups. The phylogenetic relationships of these groups are also discussed. The level of nomad transcription in the E(var)45-19 and Su(var)r27 mutations was shown to correlate with their effect on PEV, suggesting that the nomad element may be directly involved in the regulation of chromatin structure. In conclusion, a number of speculative models are presented to explain the effect of mutations in the nomad element on PEV and retroelement expression. [Scientific formulae used in this abstract could not be reproduced.]
On Exploring Inter-iteration Parallelism Within Rate-balanced Multirate Multidimensional DSP Algorithms
Creators: name: Lu, Mi
Publisher: name: figshare
Year: 2021
Subjects: subject: 100503 Computer Communications Networks
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Although the notion of the parallelism in multidimensional applications has existed for a long time, it is so far unknown what the bound (if any) of inter-iteration parallelism in multirate multidimensional DSP algorithms is, and whether the maximum inter-iteration parallelism can be achieved for arbitrary multirate data-flow algorithms. This paper explores the bound of inter-iteration parallelism within rate0valanbced multirate multidimensional DSP algorithms and proves that this parallelism can always be achieved in hardware system given the availability of a large number of processors and the interconnections between them.
A Possible kilonova powered by magnetic wind from a newborn black hole
Creators: name: Ma, Shuai-Bing
name: Xie, Wei
name: Liao, Bin
name: Zhang, Bin-Bin
name: Lü, Hou-Jun
name: Liu, Yu
name: Lei, Wei-Hua
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The merger of binary neutron stars (NS-NS) as the progenitor of short Gamma-ray bursts (GRBs) has been confirmed by the discovery of the association of the gravitational wave (GW) event GW170817 with GRB 170817A. However, the merger product of binary NS remains an open question. An X-ray plateau followed by a steep decay ("internal plateau") has been found in some short GRBs, implying that a supra-massive magnetar operates as the merger remnant and then collapses into a newborn black hole (BH) at the end of the plateau. X-ray bump or second-plateau following the "internal plateau" is considered as the expected signature from the fallback accretion onto this newborn BH through Blandford-Znajek mechanism (BZ). At the same time, a nearly isotropic wind driven by Blandford-Paynemechanism (BP) from the newborn BH's disk can produce a bright kilonova. Therefore, the bright kilonova observation for a short GRB with "internal plateau" (and followed by X-ray bump or second-plateau) provides further evidence for this scenario. In this paper, we find that GRB 160821B is a candidate of such a case, and the kilonova emission of GRB 160821B is possibly powered by the BP wind from a newborn BH. Future GW detection of GRB 160821B-like events may provide further support to this scenario, enable us to investigate the properties of the magnetar and the newborn BH, and constrain the equation of state of neutron stars.
description: 6 pages, 3 figures. Accepted for publication in ApJ
Learning Delaunay Surface Elements for Mesh Reconstruction
Creators: name: Rakotosaona, Marie-Julie
name: Guerrero, Paul
name: Aigerman, Noam
name: Mitra, Niloy
name: Ovsjanikov, Maks
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences

description: We present a method for reconstructing triangle meshes from point clouds. Existing learning-based methods for mesh reconstruction mostly generate triangles individually, making it hard to create manifold meshes. We leverage the properties of 2D Delaunay triangulations to construct a mesh from manifold surface elements. Our method first estimates local geodesic neighborhoods around each point. We then perform a 2D projection of these neighborhoods using a learned logarithmic map. A Delaunay triangulation in this 2D domain is guaranteed to produce a manifold patch, which we call a Delaunay surface element. We synchronize the local 2D projections of neighboring elements to maximize the manifoldness of the reconstructed mesh. Our results show that we achieve better overall manifoldness of our reconstructed meshes than current methods to reconstruct meshes with arbitrary topology. Our code, data and pretrained models can be found online: https://github.com/mrakotosaon/dse-meshing
Short Gamma-Ray Bursts with Extended Emission
Creators: name: Norris, Jay P.
name: Bonnell, Jerry T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The recent association of several short gamma-ray bursts (GRBs) with early type galaxies with low star formation rate demonstrates that short bursts arise from a different progenitor mechanism than long bursts. However, since the duration distributions of the two classes overlap, membership is not always easily established. The picture is complicated by the occasional presence of softer, extended emission lasting tens of seconds after the initial spike-like emission. We show that the fundamental defining characteristic of the short burst class is that the initial spike exhibits negligible spectral evolution at energies above ~ 25 keV. This behavior is nearly ubiquitous for the 260 bursts with T90 < 2 s, where the BATSE TTE data completely included the initial spike. The same signature obtains for one HETE-2 and six Swift/BAT short bursts. Analysis of a small sample of "short" BATSE bursts with the most intense extended emission shows that the same lack of evolution on the pulse timescale obtains for the extended emission. The dynamic range in the ratio of peak intensities, spike : extended, is ~ 10^4. For some bursts, the extended emission is only a factor of 2-5 less intense. A high Lorentz factor, ~ 500-1000, might explain the negligible lags observed in short bursts.
description: 26 pages, 8 figures, 4 tables. Now accepted for publication in The Astrophysical Journal
Mimicking general relativity in the solar system
Creators: name: Amendola, Luca
name: Charmousis, Christos
name: Davis, Stephen C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In order for a modified gravity model to be a candidate for cosmological dark energy it has to pass stringent local gravity experiments. We find that a Brans-Dicke (BD) theory with well-defined second order corrections that include the Gauss-Bonnet term possess this feature. We construct the generic second order theory that gives, to linear order, a BD metric solution for a point-like mass source. We find that these theories interpolate between general relativity (GR) and BD gravity. In particular it is found that the relevant Eddington parameter, that is commonly heavily constrained by time delay experiments, can be arbitrarily close to the GR value of 1, with an arbitrary BD parameter. We find the region where the solution is stable to small timelike perturbations.
description: published PRD version
Sustainability and Optimality in Economic Development: Theoretical Insights and Policy Prospects
Creators: name: Farzin, Y. Hossein
name: Farzin, Y. Hossein
Publisher: name: Unknown
Year: 2007
Subjects: subject: International Development
subject: sustainability
subject: intergenerational equity
subject: optimality
subject: discounting
subject: development policy

description: This paper takes sustainability to be a matter of intergenerational welfare equality and examines whether an optimal development path can also be sustainable. It argues that the general 'zero-net-aggregate-investment' condition for an optimal development path to be sustainable in the sense of the maximin criterion of intergenerational justice is too demanding to be practical, especially in the context of developing countries. The maximin criterion of sustainability may be more appealing to the rich advanced industrial countries, but is too costly and ethically unreasonable for developing nations as it would act as an intergenerational 'poverty equalizer'. The paper suggests that a compromise development policy that follows the optimal growth approach but adopts certain measures to mitigate the intergenerational and intragenerational welfare inequalities may better serve these countries. Some of the principal elements of such a policy are highlighted.
Improved Evidence for Direct CP Violation in B0 --> pi+ pi- Decays and Model-Independent Constraints on phi_2
Creators: name: Belle Collaboration
name: Abe, K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a new measurement of the time-dependent CP-violating parameters in B0 --> pi+ pi- decays with 275 x 10^6 BB-bar pairs collected with the Belle detector at the KEKB asymmetric-energy e+e- collider operating at the Upsilon(4S) resonance. We find 666 +/- 43 B0 --> pi+ pi- events and measure the CP-violating parameters: S_pipi = -0.67 +/- 0.16(stat) +/- 0.06(syst) and A_pipi = +0.56 +/- 0.12(stat) +/- 0.06(syst). We find evidence for large direct CP-violation with a significance greater than 4 standard deviations for any S_pipi value. Using isospin relations, we obtain 95.4% confidence intervals for the CKM angle phi_2 of 0 deg. < phi_2 < 19 deg. and 71 deg. < phi_2 < 180 deg.
description: 10 pages, 4 figures, the title and abstract have been changed on May 13th, submitted to Phys. Rev. Lett., replaced on Apr. 30th to a paper draft that is submitted to PRL. Original comments: 13 pages, 6 figures, contributed to the 2005 Aspen Winter Conference on The Higest Energy Physics, Feb. 13-19, 2005, Aspen, Colorado, U.S.A
Trade, Technique and Composition Effects: What is Behind the Fall in World-Wide SO2 Emissions 1990-2000?
Creators: name: Grether, Jean-Marie
name: Mathys, Nicole A.
name: De Melo, Jaime
name: Grether, Jean-Marie
name: Mathys, Nicole A.
name: De Melo, Jaime
Publisher: name: Unknown
Year: 2007
Subjects: subject: International Relations/Trade
subject: Trade
subject: Growth
subject: Environment
subject: Decomposition
subject: Embodied Emissions in Trade
subject: Transport

description: Combining unique data bases on emissions with sectoral output and employment data, we study the sources of the fall in world-wide SO2 emissions and estimate the impact of trade on emissions. Contrarily to concerns raised by environmentalists, an emission-decomposition exercise shows that scale effects are dominated by technique effects working towards a reduction in emissions. A second exercise comparing the actual trade situation with an autarky benchmark estimates that trade, by allowing clean countries to become net importers of emissions, leads to a 10% increase in world emissions with respect to autarky in 1990, a figure that shrinks to 3.5% in 2000. Additionally, back-of-the-envelope calculations suggest that emissions related to transport are of the same magnitude. In a third exercise, we use linear programming to simulate extreme situations where world emissions are either maximal or minimal. It turns out that effective emissions correspond to a 90% reduction with respect to the worst case, but that another 80% reduction could be reached if emissions were minimal. Replaced with revised version of paper 10/18/07.
description: Replaced with revised version of paper 10/18/07.
E_{11}, ten forms and supergravity
Creators: name: West, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We extend the previously given non-linear realisation of E_{11} for the decomposition appropriate to IIB supergravity to include the ten forms that were known to be present in the adjoint representation. We find precise agreement with the results on ten forms found by closing the IIB supersymmetry algebra.
description: 14 pages
Comments on the anti-Hawking effect on a BTZ black hole spacetime
Creators: name: Campos, Lissa de Souza
name: Dappiaggi, Claudio
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We compute the transition rate of an Unruh-DeWitt detector coupled both to a ground state and to a KMS state of a massless, conformally coupled scalar field on a static BTZ black hole with Robin boundary conditions. We observe that, although the anti-Hawking effect is manifest for the ground state, this is not the case for the KMS state. In addition, we show that our analysis applies with minor modifications also to the anti-Unruh effect on Rindler-AdS$_3$ spacetime.
description: 6 pages, 7 figures, typos and sign corrected, one figure updated
Towards e+e- --> 3 jets at NNLO by sector decomposition
Creators: name: Heinrich, G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A method based on sector decomposition has been developed to calculate the double real radiation part of the process e+e- to 3 jets at next-to-next-to-leading order. It is shown in an example that the numerical cancellation of soft and collinear poles works well. The method is flexible to include an arbitrary measurement function in the final Monte Carlo program, such that it allows to obtain differential distributions for different kinds of observables. This is demonstrated by showing 3-, 4- and 5-jet rates at order alpha_s^3 for a subpart of the process.
description: 14 pages, 4 figures