cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Αξιολόγηση των Εφαρμογών Τηλεματικής στην Πληροφόρηση του Επιβατικού Κοινού των Δημόσιων Αστικών Συγκοινωνιών:
Creators: name: Κοκκίνου, Ολγα Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Τηλεματική
Δημόσιες αστικές συγκοινωνίες
Αξιολόγηση
Telematics
Public urban transport

description: Η Διπλωματική Εργασία, με τίτλο «Αξιολόγηση Εφαρμογών Τηλεματικής στην Πληροφόρηση του Επιβατικού Κοινού των Δημόσιων Αστικών Συγκοινωνιών», πραγματεύεται την αξιολόγηση από πλευράς του επιβατικού κοινού των εφαρμογών τηλεματικής που έχει υλοποιήσει ο Οργανισμός Αστικών Συγκοινωνιών Θεσσαλονίκης (Ο.Α.Σ.Θ.) μέσω τριών νέων τεχνολογιών. (μέσω της ιστοσελίδας www.oasth.gr, της εφαρμογής m.oasth.gr για κινητά τηλέφωνα και του Διαδραστικού Φωνητικού Συστήματος Απάντησης (IVR) του Ο.Α.Σ.Θ.). Στόχος της Διπλωματικής Εργασίας είναι η διερεύνηση και αναγνώριση της ικανοποίησης των χρηστών των παραπάνω εφαρμογών της τηλεματικής του Ο.Α.Σ.Θ. και του βαθμού εκμετάλλευσής τους από τους χρήστες. Για το σκοπό αυτό, πραγματοποιήθηκε έρευνα ερωτηματολογίων στο πεδίο και ακολούθησε η επεξεργασία και η ανάλυση των συλλεχθέντων δεδομένων, με τη βοήθεια διαγραμμάτων και πινάκων έτσι ώστε να εξαχθούν έγκυρα συμπεράσματα για την ισχύουσα κατάσταση και να εντοπιστούν πιθανά προβλήματα για τις τρεις εφαρμογές τηλεματικής αντίστοιχα. Η εξαγωγή, λοιπόν, αυτών των έγκυρων συμπερασμάτων καταδεικνύει τη συνολική συνεισφορά των υπηρεσιών αυτών και η σωστή αξιολόγηση τους θα βοηθήσει στην επίτευξη ποιοτικότερου μεταφορικού έργου, καθώς συμβάλουν στη γενικότερη βελτίωση και αναβάθμιση των αστικών μετακινήσεων και του επιπέδου των παρεχόμενων υπηρεσιών στους πολίτες.
description: The thesis, titled «Evaluation of Telematics Applications in the Information of Passengers of Public Urban Transport», deals with the evaluation in terms of passengers of telematics applications implemented by the Organization of Urban Transport of Thessaloniki (O.A.S.TH.) through three new technologies (i.e. the website www.oasth.gr, the application m.oasth.gr for mobile phones and the Interactive Voice Response System (IVR) of O.A.S.TH). The aim of this thesis is to investigate and identify the satisfaction of the users of these O.A.S.TH’s telematics applications and the extent of their utilization by the users. For this purpose, a survey questionnaire in the field was performed, followed by the processing and analysis of the collected data using graphs and tables in order to end up on safe conclusions for the current situation and identify potential problems for the three telematics applications respectively. Therefore, the inference of such valid conclusions indicates the overall contribution of such services and their proper evaluation will help to achieve highest quality in transportation, as they contribute to the general improvement and upgrading of urban transportation and to the level of the services provided to the public.
title: Copepod feeding performance as a function of prey nutritional quality
Creators: name: Isari, Stamatina
name: Antό, Meritxell
name: Saiz, Enric
Publisher: name: ASC 2013 - Theme session F
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author. Copepods have been considered capable to feed selectively on several bases (i.e., cell size, toxicity), however their selective behaviour as a function of food quality is yet poorly understood. In the present work we conducted a series of laboratory experiments aiming to investigate the feeding performance of the copepod Acartia grani on the basis of the nutritional load of the dinoflagellate Heterocapsa sp. The selected prey was grown under three nutrient conditions (nutrient repletion, nitrogen and phosphorus limitation) and offered to copepods in single or mixed suspensions, at two distinct food levels. The three virtually indistinguishable Heterocapsa sp. types produced, were discriminated by fluorescent vital staining and their nutritional value was evaluated by the estimation of C:N:P elemental ratios and the determination of copepod egg production rates. Our results showed that the prey offered differed considerably in terms of nutritional value, however copepod foraging behaviour did not vary among the tested diets and no selective behavior was detected. We suggest that differences in food quality should be sufficiently strong to trigger a selective feeding response, and that nutritional quality is dependent not only on the growing conditions of algal treatments, but also on the inherent taxonomical properties of the prey.
General Solution Of Linear Vector Supersymmetry
Creators: name: Blasi, Alberto
name: Maggiore, Nicola
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We give the general solution of the Ward identity for the linear vector supersymmetry which characterizes all topological models. Such solution, whose expression is quite compact and simple, greatly simplifies the study of theories displaying a supersymmetric algebraic structure, reducing to a few lines the proof of their possible finiteness. In particular, the cohomology technology usually involved for the quantum extension of these theories, is completely bypassed. The case of Chern-Simons theory is taken as an example.
description: 18 pages, LaTeX, no figures
JWST Noise Floor I: Random Error Sources in JWST NIRCam Time Series
Creators: name: Schlawin, Everett
name: Leisenring, Jarron
name: Misselt, Karl
name: Greene, Thomas P.
name: McElwain, Michael W.
name: Beatty, Thomas
name: Rieke, Marcia
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: JWST transmission and emission spectra will provide invaluable glimpses of transiting exoplanet atmospheres, including possible biosignatures. This promising science from JWST, however, will require exquisite precision and understanding of systematic errors that can impact the time series of planets crossing in front of and behind their host stars. Here, we provide estimates of the random noise sources affecting JWST NIRCam time-series data on the integration-to-integration level. We find that 1/f noise can limit the precision of grism time series for 2 groups (230 ppm to 1000 ppm depending on the extraction method and extraction parameters), but will average down like the square root of N frames/reads. The current NIRCam grism time series mode is especially affected by 1/f noise because its GRISMR dispersion direction is parallel to the detector fast-read direction, but could be alleviated in the GRISMC direction. Care should be taken to include as many frames as possible per visit to reduce this 1/f noise source: thus, we recommend the smallest detector subarray sizes one can tolerate, 4 output channels and readout modes that minimize the number of skipped frames (RAPID or BRIGHT2). We also describe a covariance weighting scheme that can significantly lower the contributions from 1/f noise as compared to sum extraction. We evaluate the noise introduced by pre-amplifier offsets, random telegraph noise, and high dark current RC pixels and find that these are correctable below 10 ppm once background subtraction and pixel masking are performed. We explore systematic error sources in a companion paper.
description: Accepted to AJ
A Highly Eccentric Warm Jupiter Orbiting TIC 237913194
Creators: name: Schlecker, Martin
name: Kossakowski, Diana
name: Brahm, Rafael
name: Espinoza, Néstor
name: Henning, Thomas
name: Carone, Ludmila
name: Molaverdikhani, Karan
name: Trifonov, Trifon
name: Mollière, Paul
name: Hobson, Melissa J.
name: Jordán, Andrés
name: Rojas, Felipe I.
name: Klahr, Hubert
name: Sarkis, Paula
name: Bakos, Gáspár Á.
name: Bhatti, Waqas
name: Osip, David
name: Suc, Vincent
name: Ricker, George
name: Vanderspek, Roland
name: Latham, David W.
name: Seager, Sara
name: Winn, Joshua N.
name: Jenkins, Jon M.
name: Vezie, Michael
name: Villaseñor, Jesus Noel
name: Rose, Mark E.
name: Rodriguez, David R.
name: Rodriguez, Joseph E.
name: Quinn, Samuel N.
name: Shporer, Avi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The orbital parameters of warm Jupiters serve as a record of their formation history, providing constraints on formation scenarios for giant planets on close and intermediate orbits. Here, we report the discovery of TIC 237913194b, detected in full frame images from Sectors 1 and 2 of TESS, ground-based photometry (CHAT, LCOGT), and FEROS radial velocity time series. We constrain its mass to $M_\mathrm{P} = 1.942_{-0.091}^{+0.091}\,{\rm M_{J}} $, and its radius to $R_\mathrm{P} = 1.117_{-0.047}^{+0.054}\,{\rm R_J}$, implying a bulk density similar to Neptune's. It orbits a G-type star (${\rm M}_{\star} = 1.026_{-0.055}^{+0.057}\,{\rm M}_{\odot}$, $V = 12.1$ mag) with a period of $15.17\,$d on one of the most eccentric orbits of all known warm giants ($e \approx 0.58$). This extreme dynamical state points to a past interaction with an additional, undetected massive companion. A tidal evolution analysis showed a large tidal dissipation timescale, suggesting that the planet is not a progenitor for a hot Jupiter caught during its high-eccentricity migration. TIC 237913194b further represents an attractive opportunity to study the energy deposition and redistribution in the atmosphere of a warm Jupiter with high eccentricity.
description: 20 pages, 14 figures. Accepted for publication in AJ
Αλλαγές στην κτηματαγορά της Θεσσαλονίκης κατά το διάστημα 2005-2011:
Creators: name: Λογγινίδης, Νικόλαος Θεοδώρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Κτηματαγορά
Θεσσαλονίκη
Ακίνητα
Real estate
Thessaloniki
Landed property

description: Η παρούσα διπλωματική εργασία έχει ως αντικείμενο την αποτύπωση της πορείας της κτηματαγοράς της Θεσσαλονίκης κατά την περίοδο 2005-2011.Στο πρώτο μέρος της εργασίας παρουσιάζονται κάποια γενικά στοιχεία για την πόλη της Θεσσαλονίκης και τους βασικούς άξονες της κτηματαγοράς. Στο δεύτερο μέρος δημιουργήθηκε η απαιτούμενη βάση δεδομένων με εξεύρεση, συλλογή και καταγραφή των προσφερόμενων προς πώληση ακινήτων από μικρές αγγελίες και έγινε η στατιστική επεξεργασία της βάσης δεδομένων. Το ευρύτερο πολεοδομικό συγκρότημα της Θεσσαλονίκης χωρίστηκε σε τρείς τομείς, ανατολική, κεντρική και δυτική Θεσσαλονίκη. Παρουσιάζονται κατανομές τόσο για τις διαθέσιμες προς πώληση κατοικίες όσο και για τους διαθέσιμους προς πώληση επαγγελματικούς χώρους, με βάση διάφορα χαρακτηριστικά τους (παλαιότητα, εμβαδόν, αριθμό δωματίων, όροφο κ.α.) και παρουσίαση των διακυμάνσεων των τιμών των ακινήτων αυτών στην περίοδο 2005-2011, μέσω των κατάλληλων κατανομών (τιμή ανά τετραγωνικό μέτρο) συναρτήσει κάποιων παραγόντων (παλαιότητα, όροφος, είδος ακινήτου, τομέας που ανήκει το ακίνητο). Εν κατακλείδι, έχουμε την παρουσίαση των συμπερασμάτων που εξήχθησαν κατά την εκπόνηση της παρούσης.
description: The purpose of this thesis is to present the course of the real estate market in Thessaloniki during the period 2005-2011. In the first part of this thesis, some general demographic and economic elements about the city of Thessaloniki and the basic elements of every real estate market are presented. In the second part is the creation of the database, with the finding, collection and registration of the available for sale landed properties data. The urban area of Thessaloniki is divided in three large entities, east side, central and west side. Based on the collected data for landed property, diagrams and distributions by several factors (property age, floor, area, number of rooms etc.) are presented. The variance of the price per square meter of property during the 2005-2011 time period, combined with sever factors (age, floor, type of property etc.) is also presented.In conclusion, some general remarks and findings are presented, about the current and future state of the local Thessaloniki real estate market.
Improving ALMA's data processing effciency using a holistic approach
Creators: name: Nakos, Theodoros
name: Francke, Harold
name: Nakanishi, Kouichiro
name: Petry, Dirk
name: Stanke, Thomas
name: Ubach, Catarina
name: Cerrigone, Luciano
name: Keller, Erica
name: Trejo, Alfonso
name: Ueda, Junko
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: ALMA (Atacama Large Millimeter/submillimeter Array) is the world's largest ground-based facility for observations in the millimeter/submillimeter regime. One of ALMA's outstanding characteristics is the large effort dedicated to the quality assurance (QA) of the calibrated and imaged data products offered to the astronomical community. The Data Management Group (DMG), in charge of the data processing, review, and delivery of the ALMA data, consists of approximately 60 experts in data reduction, from the ALMA Regional Centers (ARCs) and the Joint ALMA Observatory (JAO), distributed in fourteen countries. With a throughput of more than 3,000 datasets per year, meeting the goal of delivering the pipeline-able data products within 30 days after data acquisition is a huge challenge. This paper presents (a) the history of data processing at ALMA, (b) the challenges our team had and is still facing, (c) the methodology followed to mitigate the operational risks, (d) the ongoing optimization initiatives, (e) the current data processing status, (f) the strategy which is being followed so that, in a few Cycles from now, a team of approximately 10 data reducers (DRs) at JAO can process and review some 80% of the datasets collected during an observing cycle, and, finally, (g) the important role of the ARCs for processing the remaining datasets.
description: 18 pages, 5 figures, paper presented at the December 2020 SPIE virtual conference on Astronomical Telescopes and Instrumentation
Comment on Development and assessment of research-based tutorials on heat engines and the second law of thermodynamics, by Matthew J. Cochran and Paula R. L. Heron, Am. J. Phys. 74, 734--741 (2006)
Creators: name: Bucher, Manfred
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: A diagram that represents both conservation of energy and constancy of entropy in Carnot cycle.
description: 5 pages with 2 figures included
title: Field and modeling study of plankton community response to nutrient enrichment
Creators: name: Tsagaraki, Tatiana M.
name: Petihakis, George
name: Pitta, Paraskevi
name: Tsiaras, Kostas
name: Frangoulis, Constantin
name: Karakassis, Ioannis
Publisher: name: ASC 2013 - Theme session F
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author. The effects of nutrient enrichment from a fixed point source (fish farm) were studied in the oligotrophic eastern Mediterranean Sea. The focus was on the plankton community response from bacteria to mesozooplankton. The current velocity and direction were taken into account using drifters. Field results showed that the community response was maximized at intermediate distances from the fish farm and that the nutrients added drove the plankton community towards a multivorous food web. Plankton community responses were examined in terms of size structure and results showed a shift towards smaller-sized cells for diatoms and larger-sized cells for ciliates and dinoflagellates. Copepod abundance was also maximized near the point source, although a trend towards smaller-sized individuals was also observed. Field results were used to modify a 3D biogeochemical model where nutrient inputs to the system from the farm were added. Model results reflected the plankton response to the nutrient enrichment and changes in the food web structure were identified close to the point source. The combined field and modeling results provide valuable insights regarding the plankton community response to anthropogenic pressures.
Roles Of Wild Food Plants In Ethnic Group Communities In Mondulkiri Province, Northeastern Cambodia
Creators: name: Thornga, Ra
name: Ouk Makarab
name: Vaughanc, Duncan A.
name: Thun Vathany
Publisher: name: Center for Research on Plurality in the Mekong Region (CERP)
Year: 2015
Subjects: wild food plants, indigenous community, ethnobotany, socioeconomic aspects

description: 2, 11, Journal of Mekong Societies
Superheavy Dark Matter from String Theory
Creators: name: Allahverdi, Rouzbeh
name: Broeckel, Igor
name: Cicoli, Michele
name: Osiński, Jacek K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Explicit string models which can realize inflation and low-energy supersymmetry are notoriously difficult to achieve. Given that sequestering requires very specific configurations, supersymmetric particles are in general expected to be very heavy implying that the neutralino dark matter should be overproduced in a standard thermal history. However, in this paper we point out that this is generically not the case since early matter domination driven by string moduli can dilute the dark matter abundance down to the observed value. We argue that generic features of string compactifications, namely a high supersymmetry breaking scale and late time epochs of modulus domination, might imply superheavy neutralino dark matter with mass around $10^{10}-10^{11}$ GeV. Interestingly, this is the right range to explain the recent detection of ultra-high-energy neutrinos by IceCube and ANITA via dark matter decay.
description: 16 pages, 9 figures
Cost-Benefit Analysis Of Climate Adaptation: A Case Study Of Mangrove Conservation And Reforestation In Ca Mau Province, Vietnam
Creators: name: Nguyen, Nam Hoang
Publisher: name: Center for Research on Plurality in the Mekong Region (CERP)
Year: 2015
Subjects: mangroves, valuation, cost-benefit analysis, conservation, reforestation, climate change adaptation

description: 2, 11, Journal of Mekong Societies
Probing quantum-mechanical level repulsion in disordered systems by means of time-resolved selectively-excited resonance fluorescence
Creators: name: Malyshev, A. V.
name: Malyshev, V. A.
name: Knoester, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We argue that the time-resolved spectrum of selectively-excited resonance fluorescence at low temperature provides a tool for probing the quantum-mechanical level repulsion in the Lifshits tail of the electronic density of states in a wide variety of disordered materials. The technique, based on detecting the fast growth of a fluorescence peak that is red-shifted relative to the excitation frequency, is demonstrated explicitly by simulations on linear Frenkel exciton chains.
description: 4 pages, 4 figures, to appear in Phys. Rev. Lett
MPEC 2024-T170 : 2024 TN4
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 TN4

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
The Individual Within The Asian Global Assemblages: A Symbolic Reading Of Selected Asian Films
Creators: name: Malaina, Alvaro
Publisher: name: Center for Research on Plurality in the Mekong Region (CERP)
Year: 2015
Subjects: assemblage, Deleuze, Guattari, global, Asian cinema, Wong Kar-Wai, Kim Ki-Duk, Pen-Ek Ratanaruang, Sion Sono

description: 2, 11, Journal of Mekong Societies
Ab-initio GMR and current-induced torques in Au/Cr multilayers
Creators: name: Haney, P. M.
name: Waldron, D.
name: Duine, R. A.
name: Nunez, A. S.
name: Guo, H.
name: MacDonald, A. H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on an {\em ab-initio} study of giant magnetoresistance (GMR) and current-induced-torques (CITs) in Cr/Au multilayers that is based on non-equilibrium Green's functions and spin density functional theory. We find substantial GMR due primarily to a spin-dependent resonance centered at the Cr/Au interface and predict that the CITs are strong enough to switch the antiferromagnetic order parameter at current-densities $\sim 100$ times smaller than typical ferromagnetic metal circuit switching densities.
description: 8 pages, 6 figures
Investigating Gaps In Sustainable Community Tourism: A Case Study Of Local Communities In The Vicinity Of Khon Kaen Zoo
Creators: name: Chonlada Pharinoa
name: Sunee Leawpenwong
Publisher: name: Center for Research on Plurality in the Mekong Region (CERP)
Year: 2015
Subjects: sustainable community tourism;local participation;impacts of tourism

description: 2, 11, Journal of Mekong Societies
การบูรณาการและการสร้างสรรค์ : การประยุกต์ใช้ สถาปัตยกรรมพื้นถิ่นจีนตอนใต้ในฉีโหลว
Creators: name: วารุณี หวัง
Publisher: name: Center for Research on Plurality in the Mekong Region (CERP)
Year: 2015
Subjects: acculturation, Qilou, Lingnan architecture, comfort environment

description: 2, 11, Journal of Mekong Societies
Implementation of the Multiple Point Principle in the Two-Higgs Doublet Model of type II
Creators: name: Froggatt, Colin D.
name: Laperashvili, Larisa
name: Nevzorov, Roman
name: Nielsen, Holger Bech
name: Sher, Marc
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The multiple point principle (MPP) is applied to the non--supersymmetric two-Higgs doublet extension of the Standard Model (SM). The existence of a large set of degenerate vacua at some high energy scale caused by the MPP results in a few relations between Higgs self-coupling constants which can be examined at future colliders. The numerical analysis reveals that these MPP conditions constrain the mass of the SM--like Higgs boson to lie below 180 GeV for a wide set of MPP scales $Λ$ and $\tanβ$.
description: 26 pages, 3 figures, some minor changes to the text
พลวัตของย่านเก่าในเมืองอนุรักษ์ของไทย
Creators: name: ระวิวรรณ โอฬารรัตน์มณี
Publisher: name: Center for Research on Plurality in the Mekong Region (CERP)
Year: 2015
Subjects: dynamics, historic district, city, conservation, spatio-social relations

description: 2, 11, Journal of Mekong Societies
พ่อค้าชาวซิกข์ ณ หัวเมืองอีสาน
Creators: name: อภิรัฐ คำวัง
Publisher: name: Center for Research on Plurality in the Mekong Region (CERP)
Year: 2015
Subjects: Thai Sikh community, Sikh merchants, trade, Isan

description: 2, 11, Journal of Mekong Societies
Η συμβολή των ολοκληρωμένων δικτύων πρασίνου στον αειφόρο σχεδιασμό των πόλεων. Πρόταση σε Δημοτική Κοινότητα της Θεσσαλονίκης.:
Creators: name: Καραβαγγέλη, Ειρήνη Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Αειφορία
Πράσινα δίκτυα
Αστικό πράσινο
sustainable development
green network
urban landscape

description: Στην παρούσα διατριβή επιχειρείται να αναλυθεί η συμβολή των ολοκληρωμένων δικτύων πρασίνου στον αειφόρο σχεδιασμό, και η δυνατότητα ενοποίησης, επαναπροσδιορισμού και αναβίωσης μέσω αυτών της παλιάς γειτονίας, σε μια βιώσιμη γειτονιά, με πρόταση εφαρμογής στη 2η Δημοτική Κοινότητα της Θεσσαλονίκης. Η ενοποίηση του αστικού πρασίνου και η δημιουργία δικτύου συμβάλλει στη διατήρηση και προστασία των αυτόχθονων ενδιαιτημάτων στον αστικό ιστό, επισημαίνει την ιδιαίτερη παρουσία των ζωνών προστασίας της φύσης μέσα στην πόλη και εστιάζει στις χρήσεις γής, προβάλλοντας την ανάγκη αποκατάστασης και ανάπλασης υποβαθμισμένων τοπίων. Συγχρόνως δημιουργεί τις προυποθέσεις για την άνετη, ευχάριστη και αειφορική κίνηση των πολιτών και τη σύνδεση ιδιαίτερων πόλων έλξης και προορισμών. Επιπλέον τα σύγχρονα δίκτυα πρασίνου ακολουθούν την πορεία των πόλεων μέσα στην ιστορία και ενισχύουν την πολιτιστική συνέχεια, εντοπίζοντας και συνδέοντας αρχαιολογικούς χώρους πολιτισμού και θεάματος με τις νέες αστικές συνθέσεις.
description: This paper presents the design of a green network in the city of Thessaloniki, based on the principles of sustainable development. The important role of urban landscape, its connection to the city’s organization and services, as well as other cultural, historical and social sources of interest are stressed and put forward. Ecological and human factors composing urban environment, are recorded and analyzed in qualitative and quantitative level in order to be used as special criteria in the composing of the green network. The synthesis and combination of suitability maps, using landscape parameters and criteria is the most important stage of the planning and designing of the network.
Characterizing Dark Matter Signals with Missing Momentum Experiments
Creators: name: Blinov, Nikita
name: Krnjaic, Gordan
name: Tuckler, Douglas
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Fixed target missing-momentum experiments such as LDMX and M$^3$ are powerful probes of light dark matter and other light, weakly coupled particles beyond the Standard Model (SM). Such experiments involve $\sim$ 10 GeV beam particles whose energy and momentum are individually measured before and after passing through a suitably thin target. If new states are radiatively produced in the target, the recoiling beam particle loses a large fraction of its initial momentum, and no SM particles are observed in a downstream veto detector. We explore how such experiments can use kinematic variables and experimental parameters, such as beam energy and polarization, to measure properties of the radiated particles and discriminate between models if a signal is discovered. In particular, the transverse momentum of recoiling particles is shown to be a powerful tool to measure the masses of new radiated states, offering significantly better discriminating ability compared to the recoil energy alone. We further illustrate how variations in beam energy, polarization, and lepton flavor (i.e., electron or muon) can be used to disentangle the possible the Lorentz structure of the new interactions.
description: 13 pages, 10 figures, 1 appendix
title: Trophic relationships and the role of Calanus in the oceanic ecosystems south and north of Iceland
Creators: name: Petursdottir, Hildur
Publisher: name: ASC 2013 - Theme session F
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author. The aim of this study was to increase the knowledge on the role of Calanus copepods and trophic relations of the key components of the oceanic ecosystems south-west (Atlantic waters) and north (Arctic and sub-Arctic waters) of Iceland. The trophic relationships and energy transfer to higher trophic levels were estimated by using fatty acid trophic markers and by applying stable isotopes of carbon and nitrogen. The energy rich Calanus species are key links between primary producers and higher trophic levels in the Icelandic waters. The Calanus species dominate the zooplankton biomass around Iceland and their markers (20:1n9 and 22:1n11) are found in high amount in animals at higher trophic levels. Calanus finmarchicus plays important role as a forage species in the Atlantic water south-west of Iceland while its high importance is replaced by the larger lipid rich C. hyperboreus in the Arctic and sub-Arctic waters north of Iceland. Even though Calanus based food-web is the main driver in both areas, there exist a pathway where Calanus species are of less importance and the energy is channeled via euphausiids to higher trophic levels. This study presents novel important knowledge on the food web structures and carbon flow in Icelandic waters.
Measurement of mutual inductance from frequency dependence of impedance of AC coupled circuit using digital dual-phase lock-in amplifier
Creators: name: Schauber, Michael J.
name: Newman, Seth A.
name: Goodman, Lindsey R.
name: Suzuki, Itsuko S.
name: Suzuki, Masatsugu
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: We present a simple method to determine the mutual inductance $M$ between two coils in a coupled AC circuit by using a digital dual-phase lock-in amplifier. The frequency dependence of the real and imaginary parts is measured as the coupling constant is changed. The mutual inductance $M$ decreases as the distance $d$ between the centers of coils is increased. We show that the coupling constant is proportional to $d^{-n}$ with an exponent $n$ ($\approx$ 3). This coupling is similar to that of two magnetic moments coupled through a dipole-dipole interaction.
description: 9 pages, 10 figures, Fig.1 is corrected, figures in png files, short version is published in Am. J. Phys. 76, (2008) 129
Many-particle Quantum Hydrodynamics of Spin-1 Bose-Einstein Condensates
Creators: name: Trukhanova, Mariya Iv.
name: Obukhov, Yuri N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We develop a novel model of the magnetized spin-1 Bose-Einstein condensate (BEC) of neutral atoms, using the method of many-particle quantum hydrodynamic (QHD) and propose an original derivation of the system of continual equations. We consider bosons with a spin-spin interaction and a short range interaction in the first order in the interaction radius, on the of basis of the self-consistent field approximation of the QHD equations. We demonstrate that the dynamics of the fluid velocity and magnetization is determined by a nontrivial modification of the Euler and Landau-Lifshitz equation, and show that a nontrivial modification of the spin density evolution equation contains the spin torque effect that arises from the self-interactions between spins of the bosons. The properties of the dispersion spectrum of collective excitations are described. We obtain the new contribution of the self-interaction of spins in the spin wave spectrum together with the influence of an external magnetic field and spin-spin interactions between polarized particles. The anisotropic spin wave instability is predicted.
Robust structure measures of metabolic networks that predict prokaryotic environmental variables in the context of obesity and metabolic diseases
Creators: name: Zendrera, Adele Weber
name: Sokolovska, Nataliya
name: Hédi A. Soula
Publisher: name: F1000 Research Limited
Year: 2019

description: Metabolic networks describe the chemical reactions within an organism. We can reconstruct these networks from genome and enzyme reactions databases.

About ten years ago, Takemoto et al., 2007 stated that the structure of undirected prokaryotic metabolic networks is correlated to an environmental variable: the optimal growth temperature. Reinspecting this work with an updated database and new species, we compared network structural properties to the associated growth temperature, and confirmed most of Takemoto et al., 2007 results. Furthermore, we extended this work to directed metabolic networks. We found two robust directed graph measures significantly related to growth temperature.

These results can be extended to more complex environmental phenotypes. We considered gut microbiota metabolic networks, and host clinical data as phenotypes. Using metagenomics data from bariatric surgery patients, we found several connections between networks and clinical phenotypes.

Network structure analysis can be a new powerful tool to analyse the relationship between gut microbiota and host. In the context of obesity and metabolic diseases, it can be a new avenue to explore functional properties between the gut and diseases, and towards new targeted therapies.
การต่อรองกับสำนักบุญนิยมในพื้นที่พหุชาติพันธุ์ ในจังหวัดสกลนครผ่านทุนทางวัฒนธรรม และทุนทางสังคม
Creators: name: นิภาพร มาลีลัย;จักรพันธ์ ขัดชุ่มแสง
Publisher: name: Center for Research on Plurality in the Mekong Region (CERP)
Year: 2015
Subjects: Multi-ethnic area, religious capitalism, social capital, cultural capital, negotiation

description: 2, 11, Journal of Mekong Societies
On the occurrence of type IV solar radio bursts in the solar cycle 24 and their association with coronal mass ejections
Creators: name: Kumari, Anshu
name: Morosan, D. E.
name: Kilpua, E. K. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Solar activity, in particular coronal mass ejections (CMEs), are often accompanied by bursts of radiation at metre wavelengths. Some of these bursts have a long duration and extend over a wide frequency band, namely, type IV radio bursts. However, the association of type IV bursts with coronal mass ejections is still not well understood. In this article, we perform the first statistical study of type IV solar radio bursts in the solar cycle 24. Our study includes a total of 446 type IV radio bursts that occurred during this cycle. Our results show that a clear majority, $\sim 81 \%$ of type IV bursts, were accompanied by CMEs, based on a temporal association with white-light CME observations. However, we found that only $\sim 2.2 \%$ of the CMEs are accompanied by type IV radio bursts. We categorised the type IV bursts as moving or stationary based on their spectral characteristics and found that only $\sim 18 \%$ of the total type IV bursts in this study were moving type IV bursts. Our study suggests that type IV bursts can occur with both `Fast' ($\geq 500$ km/s) and `Slow' ($< 500$ km/s), and also both `Wide' ($\geq 60^{\circ}$) and `Narrow' ($< 60^{\circ}$) CMEs. However, the moving type IV bursts in our study were mostly associated with `Fast' and `Wide' CMEs ($\sim 52 \%$), similar to type II radio bursts. Contrary to type II bursts, stationary type IV bursts have a more uniform association with all CME types.
description: 11 pages, 6 figures, Accepted for publication in ApJ
title: Changes in the age-size structure of the Barents Sea euphausiids under the pressure of fish predation in warm climatic periods
Creators: name: Orlova, Emma L.
name: Dolgov, Andrey V.
name: Orlova, Anna S.
name: Nesterova, Valentina N.
name: Benzik, Aleksandr N.
Publisher: name: ASC 2013 - Theme session F
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author. Four euphausiid species dwell in the Barents Sea – Meganyctiphanes norvegica, Thysanoessa inermis, T.raschii and T.longicaudata. The ratio of these species in the euphausiid community depends on climatic conditions and an intensity of inflows from the Norwegian Sea. A strong drift of warmwater species was observed last year, that resulted in their high abundance and wide distribution compared to the low abundance and local distribution of coldwater species. Simultaneously, significant changes in the size composition of euphausiids were observed in the last years due to an increased predation of both pelagic and demersal fish on euphausiids. The paper describes changes in the abundance and size composition of various euphausiid species and their importance for the diet of most abundant fish in the Barents Sea in the last years.
Bose-Einstein-condensed gases with arbitrary strong interactions
Creators: name: Yukalov, V. I.
name: Yukalova, E. P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Bose-condensed gases are considered with an effective interaction strength varying in the whole range of the values between zero and infinity. The consideration is based on the usage of a representative statistical ensemble for Bose systems with broken global gauge symmetry. Practical calculations are illustrated for a uniform Bose gas at zero temperature, employing a self-consistent mean-field theory, which is both conserving and gapless.
description: Latex file, 23 pages, 4 figures
title: Feeding and diversity of copepod nauplii communities along the Atlantic Meridional Transect
Creators: name: Fileman, Elaine
name: Harmer, Rachel
name: Pemberton, Katharine
name: Lindeque, Pennie
Publisher: name: ASC 2013 - Theme session F
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author. As part of the Atlantic Meridional Transect programme (AMT) we participated in a field study to determine the composition of zooplankton communities in surface waters between the UK and the Falkland Islands. Copepod juvenile stages were found to be the most abundant component of the community (50-90%), however, morphological characteristics are insufficient to enable identification to species level. As such, we developed a DNA barcoding technique for copepod nauplii to enhance our resolution of species identification and enable a description of the community composition. In addition, we carried out feeding experiments on natural communities to investigate the trophic role of copepod nauplii in the Southern region of the AMT. We found that copepod nauplii have an ability to ingest a range of different food dependent on their availability. This may enhance the probability of nauplii obtaining sufficient energy to develop in food-limited environments such as the southern gyre. By feeding on small particles copepod nauplii thus provide a link between the microbial food web and the classical food web through their subsequent ingestion by animals in higher trophic levels
PSR J0737-3039: Interacting Pulsars in X-Rays
Creators: name: Pellizzoni, A.
name: Tiengo, A.
name: De Luca, A.
name: Esposito, P.
name: Mereghetti, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a ~230 ks long X-ray observation of the relativistic double-pulsar system PSR J0737-3039 obtained with the XMM-Newton satellite in 2006 October. We confirm the detection in X-rays of pulsed emission from PSR J0737-3039A (PSR A), mostly ascribed to a soft non-thermal power-law component (photon index ~ 3.3) with a 0.2-3 keV luminosity of ~1.9E+30 erg/s (assuming a distance of 500 pc). For the first time, pulsed X-ray emission from PSR J0737-3039B (PSR B) is also detected in part of the orbit. This emission, consistent with thermal radiation with temperature kT=30 eV and a bolometric luminosity of ~1E+32 erg/s, is likely powered by heating of PSR B's surface caused by PSR A's wind. A hotter (~130 eV) and fainter (~5E+29 erg/s) thermal component, probably originating from back-falling particles heating polar caps of either PSR A or PSR B is also required by the data. No signs of X-ray emission from a bow-shock between PSR A's wind and the interstellar medium or PSR B's magnetosphere are present. The upper limit on the luminosity of such a shock component (~1E+29 erg/s) constrains the wind magnetization parameter sigma of PSR A to values greater than 1.
description: Revised to match the final version. Typos corrected
The Effect of Areal Density Asymmetries on Scattered Neutron Spectra in ICF Implosions
Creators: name: Crilly, Aidan
name: Appelbe, Brian
name: Mannion, Owen
name: Forrest, Chad
name: Chittenden, Jeremy
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Scattered neutron spectroscopy is a diagnostic technique commonly used to measure areal density in ICF experiments. Deleterious areal density asymmetries modify the shape of the scattered neutron spectrum. In this work a novel analysis is developed which can be used to fit the shape change. This allows scattered neutron spectroscopy to directly infer the amplitude and mode of the areal density asymmetries, with little sensitivity to confounding factors which affect other diagnostics for areal density. The model is tested on spectra produced by a neutron transport calculation with both isotropic and anisotropic primary fusion neutron sources. Multiple lines of sight are required to infer the areal density distribution over the whole sphere -- we investigate the error propagation and optimal detector arrangement associated with this inference.
Comparing different mass estimators for a large subsample of the {\it Planck}-ESZ clusters
Creators: name: Lovisari, L.
name: Ettori, S.
name: Sereno, M.
name: Schellenberger, G.
name: Forman, W. R.
name: Andrade-Santos, F.
name: Jones, C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Total mass is arguably the most fundamental property for cosmological studies with galaxy clusters. We investigate the present differences in the mass estimates obtained through independent X-ray, weak-lensing, and dynamical studies. We quantify the differences as the mean ratio 1-$b$=M$_{\rm HE}$/M$_{\rm WL,dyn}$, where HE refers to hydrostatic masses obtained from X-ray observations, WL refers to the results of weak-lensing measurements, and dyn refers to the mass estimates either from velocity dispersion or from the caustic technique. Recent X-ray masses reported by independent groups show average differences smaller than $\sim$10$\%$, posing a strong limit on the systematics that can be ascribed to the differences in the X-ray analysis when studying the hydrostatic bias. The mean ratio between our X-ray masses and the weak-lensing masses in the LC$^2$-single catalog is 1-$b$=0.74$\pm$0.06. However, the mean mass ratios inferred from the WL masses of different projects vary by a large amount, with APEX-SZ showing a bias consistent with zero (1-$b$=1.02$\pm$0.12), LoCuSS and CCCP/MENeaCS showing a significant difference (1-$b$=0.76$\pm$0.09 and 1-$b$=0.77$\pm$0.10, respectively), and WtG pointing to the largest deviation (1-$b$=0.61$\pm$0.12). At odds with the WL results, the dynamical mass measurements show better agreement with the X-ray hydrostatic masses, although there are significant differences when relaxed or disturbed clusters are used. The different ratios obtained using different mass estimators suggest that there are still systematics that are not accounted for in all the techniques used to recover cluster masses. This prevents the determination of firm constraints on the level of hydrostatic mass bias in galaxy clusters.
description: 13 pages, 8 figures, accepted for publication in A&A
Parallax Systematics and Photocenter Motions of Benchmark Eclipsing Binaries in Gaia EDR3
Creators: name: Stassun, Keivan G.
name: Torres, Guillermo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Previous analyses of various standard candles observed by the Gaia satellite have reported statistically significant systematics in the parallaxes that have improved from $\sim$250 $μ$as in the first data release (DR1) to 50--80 $μ$as in the second data release (DR2). Here we examine the parallaxes newly reported in the Gaia early third data release (EDR3) using the same sample of benchmark eclipsing binaries (EBs) we used to assess the DR1 and DR2 parallaxes. We find a mean offset of $-37\pm20$ $μ$as (Gaia$-$EB), which decreases to $-15\pm18$ $μ$as after applying the corrections recommended by the Gaia Mission team; global systematics in the Gaia parallaxes have clearly improved and are no longer statistically significant for the EB sample, which spans $5\lesssim{G}\lesssim12$ in brightness and 0.03--3 kpc in distance. We also find that the RUWE goodness-of-fit statistic reported in Gaia EDR3 is highly sensitive to unresolved companions (tertiaries in the case of our EB sample) as well as to photocenter motion of the binaries themselves. RUWE is nearly perfectly correlated ($r^2=0.82$) with photocenter motions down to $\lesssim$0.1 mas, and surprisingly this correlation exists entirely within the nominal "good" RUWE range of 1.0--1.4. This suggests that RUWE values even slightly greater than 1.0 may signify unresolved binaries in Gaia, and that the RUWE value can serve as a quantitative predictor of the photocenter motion.
description: accepted for publication in ApJ Letters
Maximal qubit violation of n-local inequalities in quantum network
Creators: name: Kundu, Amit
name: Molla, Mostak Kamal
name: Chattopadhyay, Indrani
name: Sarkar, Debasis
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Source independent quantum networks are considered as a natural generalization to the Bell scenario where we investigate the nonlocal properties of quantum states distributed and measured in a network. Considering the simplest network of entanglement swapping, recently Gisin et. al. and Andreoli et. al. independently provided a systematic characterization of the set of quantum states leading to violation of the so-called 'bilocality' inequality. In this work, we consider the complexities in the quantum networks with an arbitrary number of parties distributed in chain-shaped and star-shaped networks. We derive the maximal violation of the 'n-local' inequality that can be achieved by arbitrary two-qubit states for such chain and star-shaped networks. This would further provide us deeper understanding of quantum correlations in complex structures.
description: 9 pages, 5 figures, revtex, comments welcome
Probing the internal solar magnetic field through g-modes
Creators: name: Rashba, T. I.
name: Semikoz, V. B.
name: Turck-Chieze, S.
name: Valle, J. W. F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The observation of g-mode candidates by the SoHO mission opens the possibility of probing the internal structure of the solar radiative zone (RZ) and the solar core more directly than possible via the use of the p-mode helioseismology data. We study the effect of rotation and RZ magnetic fields on g-mode frequencies. Using a self-consistent static MHD magnetic field model we show that a 1% g-mode frequency shift with respect to the Solar Seismic Model (SSeM) prediction, currently hinted in the GOLF data, can be obtained for magnetic fields as low as 300 kG, for current measured modes of radial order n=-20. On the other hand, we also argue that a similar shift for the case of the low order g-mode candidate (l=2, n=-3) frequencies can not result from rotation effects nor from central magnetic fields, unless these exceed 8 MG.
description: 6 pages, 2 figures; final version to appear in MNRAS
An Open Science Approach to Machine Learning in Biomedical Research
Creators: name: Almarzouq, Batool
Publisher: name: Zenodo
Year: 2021
Subjects: open science
saudi arabia
biomedical research
machine learning

description: A talk titled "An Open Science Approach to Machine Learning in Biomedical Research" delivered at the Saudi Data Community. It is a part of a series of talks and workshops to introduce open Science practices to the Saudi Community. The talk briefly gives an overview of the impact of machine learning methodologies in biomedical research. It then explains how an open science approach could help overcome the "replication crisis" and present "the turing way" as a guide to reproducible and collaborative research practices. The talk is available online