cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Διερεύνηση της συγκέντρωσης της παραοξονάσης-1 (ΡΟΝ-1) στον ορό του αίματος σκύλων με ενδοκάρδωση της μιτροειδούς βαλβίδας
Creators: name: Ταγγαλίδη, Μελπομένη Κυριάκου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Παραοξονάση-1
Σκύλος
Ενδοκάρδωση
Paraoxonase-1
Dog
Mitral valve disease

description: Η ενδοκάρδωση της μιτροειδούς βαλβίδας είναι η συχνότερη καρδιοπάθεια των σκύλων στην κτηνιατρική, και αποτελεί αίτιο συμφορητικής καρδιοπάθειας σε αυτό το ζωικό είδος. Η διαγνωστική διερεύνηση της νόσου στηρίζεται στα ευρήματα της κλινικής εξέτασης, καθώς και στα αποτελέσματα των απεικονιστικών εξετάσεων, στοιχεία που απαιτούνται για την κλινική σταδιοποίηση της νόσου, αλλά και στην επιλογή του κατάλληλου θεραπευτικού πρωτοκόλλου. Κάποιες φορές, ωστόσο, τα στοιχεία αυτά δεν είναι επαρκή. Έτσι, τα τελευταία χρόνια, έχει παρατηρηθεί μεγάλο ενδιαφέρον προς άλλες διαγνωστικές μεθόδους. Η παραοξονάση είναι ένας βιοδείκτης οξειδωτικής καταπόνησης που απαντάται στον ορό του αίματος. Σύγχρονες μελέτες δείχνουν πως συνδέεται με αρκετές καρδιοπάθειες και φαίνεται να παίζει σπουδαίο ρόλο στη διαγνωστική προσέγγιση των περιστατικών αυτών. Σκοπός της μελέτης μας ήταν να εκτιμήσουμε τη συγκέντρωση της παραοξονάσης στον ορό αίματος σκύλων με ενδοκάρδωση σε όλα τα κλινικά στάδια της νόσου και να διερευνηθεί αν συσχετίζεται με το κλινικό στάδιο, εργαστηριακές ή υπερηχοτομογραφικές παραμέτρους.
description: Mitral valve disease is the most common cardiopathy of dogs in veterinary medicine, and is a cause of congestive heart faiure in this animal species. Diagnostic investigation of the disease is based on the findings of the clinical examination, as well as the results of the imaging tests, elements required for clinical disease staging, as well as the choice of the appropriate therapeutic protocol. Sometimes, however, these findings are not sufficient. Thus, in recent years, great interest has been shown in other diagnostic methods. Paraoxonase is a biomarker of oxidative stress that is found in blood serum. Contemporary studies show that it is associated with several heart diseases and appears to play a major role in the diagnostic approach of these cases. The aim of our study was to evaluate the concentration of paroxonase in dog blood serum by intracarding in all clinical stages of the disease and to investigate whether it correlates with the clinical stage, laboratory or ultrasonographic parameters.
Η ενσωμάτωση της Θεσσαλίας στην Εκκλησία της Ελλάδος 1881 - 1882
Creators: name: Κουρκούτας, Λουκάς Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Θεσσαλία
Ενσωμάτωση
Εκκλησία της Ελλάδος
Thessaly
Incorporation
Church of Greece

description: Αντικείμενο έρευνας αυτής της παρούσας Διπλωματικής εργασίας είναι η ενσωμάτωση της Θεσσαλίας στην εκκλησία της Ελλάδος κατά την περίοδο 1881 – 1882. Η δομή της παρούσας Διπλωματικής Εργασίας έχει ως εξής: Εκτός του Προλόγου και της Εισαγωγής αποτελείται από τρία Κεφάλαια. Το πρώτο αναφέρεται στην προσάρτηση της Θεσσαλίας στο Ελληνικό κράτος, με τα τεχνικά και Διπλωματικά ζητήματα που προέκυψαν σε ότι αφορά την οροθεσία, την Ελληνική κατάληψη και τις αντιδράσεις όπως επίσης και τα επεισόδια. Το δεύτερο υποδιαιρείται σε δύο υποκεφάλαια στα οποία παρουσιάζεται η οργάνωση της Ελληνικής διοίκησης και η πολιτική σύνδεση, σε συνάρτηση με την ενσωμάτωση του εκλογικού σώματος και τις πρώτες δημοτικές εκλογές. Τέσσερις υποδιαιρέσεις υπάρχουν στο τρίτο κεφάλαιο. Η πρώτη αναφέρεται στην εκκλησιαστική σύνδεση της Θεσσαλίας με την Εκκλησία της Ελλάδος, εξετάζοντας το υπόβαθρο αυτής της ένωσης και την Πατριαρχική και Συνοδική Πράξη του 1882. Η δεύτερη αιτιολογεί τη βάση για την έκδοση της Πράξης αυτής. Στην Τρίτη παρουσιάζονται οι παραχωρημένες εκκλησιαστικές περιφέρειες και τέλος στην τέταρτη οι ιερές μονές οι οποίες έχουν παραχωρηθεί. Όπως επίσης και τα συμπεράσματα τα οποία προκύπτουν. Η εργασία κατακλείεται με τη Σύμβαση μεταξύ της Ελλάδος και της Τουρκίας η οποία υπογράφηκε στις 20 Ιουνίου 1881 και το κείμενο της Πατριαρχικής και Συνοδικής Πράξης του 1882, διάφορα έγγραφα και την Βιβλιογραφία.
description: The subject of this Diploma Thesis is the incorporation of Thessaly into the Church of Greece during the period 1881 - 1882. The structure of this Diploma Thesis is as follows: In addition to Summary and Introduction, it consists of three Chapters. The first refers to the annexation of Thessaly to the Greek state, with the technical and diplomatic issues that have arisen in terms of seroposition, Greek occupation and reactions as well as episodes. The second is divided into two subchapters presenting the organization of the Greek administration and the political connection, in connection with the integration of the electorate and the first municipal elections. Four subdivisions are in the third chapter. The first refers to the ecclesiastical connection of Thessaly with the Church of Greece, examining the background of this union and the Patriarchal and Synodic Act of 1882. The second justifies the basis for the adoption of this Act. On Tuesday, the conceded ecclesiastical regions are presented, and finally the holy monasteries which have been granted. As well as the conclusions that emerges. The study is covered by the Convention between Greece and Turkey signed on 20 June 1881 and the text of the Patriarchal and Synodic Act of 1882 and the Bibliography.
Optically synchronized fiber links with spectrally pure integrated lasers
Creators: name: Brodnik, Grant M.
name: Harrington, Mark W.
name: Dallyn, John H.
name: Bose, Debapam
name: Zhang, Wei
name: Stern, Liron
name: Morton, Paul A.
name: Behunin, Ryan O.
name: Papp, Scott B.
name: Blumenthal, Daniel J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Precision frequency and phase synchronization between distinct fiber interconnected nodes is critical for a wide range of applications, including atomic timekeeping, quantum networking, database synchronization, ultra-high-capacity coherent optical communications and hyper-scale data centers. Today, many of these applications utilize precision, tabletop laser systems, and would benefit from integration in terms of reduced size, power, cost, and reliability. In this paper we report a record low 3x10^-4 rad^2 residual phase error variance for synchronization based on independent, spectrally pure, ultra-high mutual coherence, photonic integrated lasers. This performance is achieved with stimulated Brillouin scattering lasers that are stabilized to independent microcavity references, realizing sources with 30 Hz integral linewidth and a fractional frequency instability less than or equal to 2x10^-13 at 50 ms. This level of low phase noise and carrier stability enables a new type of optical-frequency-stabilized phase-locked loop (OFS-PLL) that operates with a less than 800 kHz loop bandwidth, eliminating traditional power consuming high bandwidth electronics and digital signal processors used to phase lock optical carriers. Additionally, we measure the residual phase error down to a received carrier power of -34 dBm, removing the need to transmit in-band or out-of-band synchronized carriers. These results highlight the promise for a path to spectrally pure, ultra-stable, integrated lasers for network synchronization, precision time distribution protocols, quantum-clock networks, and multiple-Terabit per second coherent DSP-free fiber-optic interconnects.
Serum platelet distribution width predicts cardiovascular and all-cause mortality in patients undergoing peritoneal dialysis
Creators: name: Zhu, Heng-Mei
name: Xiong, Yi-Yi
name: Chen, Yan-Bing
name: Xiao, Jun
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Science Policy

description: Platelet distribution width (PDW) is a predictor for all-cause mortality in patients with cardiovascular diseases (CVD). This study aimed to evaluate the prognostic implication of PDW in predicting cardiovascular and all-cause mortality in patients undergoing peritoneal dialysis (PD). In total, 762 PD patients from a single center were recruited retrospectively from 2005 to 2017 and followed up until 2021. The primary and secondary outcomes were cardiovascular and all-cause mortality, respectively. Survival analysis was conducted using Kaplan-Meier estimates and Cox regression analysis. During a median of 52.2 months of follow-up, 135 (17.7%) cases of CVD and 253 (33.2%) cases of all-cause mortality were reported. After multivariate adjustment, high levels of PDW were associated with an increased risk of death from CVD (HR: 1.583; 95% CI: 1.109–2.258; P = 0.011) and all-cause mortality (HR: 1.313; 95% CI: 1.006–1.758; P = 0.045). Subgroup analysis indicated a stronger association between PDW and all-cause mortality among female participants (P-value for interaction = 0.033). Higher levels of PDW predicted an increased risk of all-cause mortality in female patients (HR: 1.986; 95% CI,1.261–3.127). High levels of PDW are independently associated with cardiovascular and all-cause mortality in the PD population, and differences by sex exist in the association of PDW with all-cause mortality.
Stripping Mechanisms and Remediation for H$^-$ Beams
Creators: name: Folsom, B. T.
name: Eshraqi, M.
name: Kraljevic, N. Blaskovic
name: Gålnander, B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Negative hydrogen ions are often used for injecting protons from linacs to storage rings via charge-exchange injection. In this process, the two electrons are stripped by a foil or laser to produce protons which can be merged with an existing beam without significantly affecting its dynamics, allowing high intensities of protons to be accumulated. However, this capability comes with the drawback that the outer electron of an H$^-$ ion has a low binding energy and can easily be stripped away prior to injection. This paper addresses the following stripping mechanisms: interactions with residual gas in the beam pipe, blackbody radiation from accelerator components, and electromagnetic fields from accelerator optics (Lorentz-force stripping) and particles within the bunch itself (intrabeam stripping); with a discussion on how to avoid excessive activation from stripped H$^0$ particles and protons. We also demonstrate that the proportion of stripped H$^0$ colliding with a nearby beam pipe or machine-element walls presents only roughly 10\% of those lost in stripping; the remaining stripped particles traverse to the end of a linac or local straight section, which may relax the limits for allowable stripping-based beam loss in H$^-$ accelerators.
description: 7 pages
Η άνοια και ο Κώδικας Ιατρικής Δεοντολογίας
Creators: name: Σιδηροπούλου, Όλγα Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Άνοια
Κώδικας Ιατρικής Δεοντολογίας
Ιατρικό νομικό πλαίσιο
Dementia
Code of Medical Ethics
Medical legal framework

description: Σκοπός της συγκεκριμένης διπλωματικής διατριβής είναι αρχικά η ανάδειξη των ιδιαίτερων χαρακτηριστικών της άνοιας ως νόσου που υπεισέρχονται και προκαλούν έντονα προβλήματα στη σχέση ασθενούς – ιατρού, αλλά και φροντιστού του ασθενούς – ιατρού και εν συνεχεία η παράθεση των τρόπων εκείνων που μπορούν να βελτιώσουν τη σχέση αυτή και να βοηθήσουν τόσο το γιατρό να πράξει το έργο του στα πλαίσια της ισχύουσας δεοντολογίας και νομοθεσίας, όσο και τον ασθενή και το φροντιστή του να αντιμετωπίσουν την πάθηση αυτή και να βελτιώσουν την ποιότητα της ζωής τους. Η σχέση αυτή ασθενούς – ιατρού ρυθμίζεται από τις διατάξεις του Κώδικα Ιατρικής Δεοντολογίας σε νομικό επίπεδο. Συγκεκριμένα, τα άρθρα του Κώδικα που σχετίζονται ιδιαίτερα με αυτήν την κατηγορία των ασθενών, λόγω της ιδιαίτερης φύσης και των διαφορετικών σταδίων εξέλιξης των συμπτωμάτων της, και προσεγγίζονται είναι αυτά που αφορούν στις σχέσεις του ιατρού με τον ασθενή του, στην ενημέρωση και συναίνεση του ασθενούς και στη συμμετοχή του τελευταίου σε ιατρικές έρευνες. Κατά τη ανωτέρω προσέγγιση υπογραμμίζονται ελλείψεις και παραλείψεις της ισχύουσας νομοθεσίας, ενώ παράλληλα παρατίθενται και προτάσεις για την επίλυση αυτών.
description: The aim of the present thesis is, initially, to saw up the specific characteristics of dementia which involve and affect the relationship between the patient and his/her doctor, as also the relationship between the patient’s caregiver and his/her doctor, and afterwards, to cite the ways that can improve this relationship and help so the doctor to act according to the applicable ethics and legislation, as the patient and the patient’s caregiver to cope with this special illness and improve the quality of their lives. The relationship between the patient and the doctor is defined and regulated at the legal level by the Code of Medical Ethics. Specifically, the articles of the Code that are related with this category of patients, patients who suffer from dementia, an illness with special features and deferent symptom stages, are these that are related to the doctor’s relationship with the patient, to the patient’s informed consent and to the patient’s participation in medical research. Throughout the above approach are underlined deficiencies and omissions of the applicable legislation and, alongside, are listed proposals for their improvment.
Hybrid stars within a covariant, nonlocal chiral quark model
Creators: name: Blaschke, D. B.
name: Dumm, D. Gomez
name: Grunfeld, A. G.
name: Klahn, T.
name: Scoccola, N. N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a hybrid equation of state (EoS) for dense matter in which a nuclear matter phase is described within the Dirac-Brueckner-Hartree-Fock (DBHF) approach and a two-flavor quark matter phase is modelled according to a recently developed covariant, nonlocal chiral quark model. We show that modern observational constraints for compact star masses (M ~ 2 M_sun) can be satisfied when a small vector-like four quark interaction is taken into account. The corresponding isospin symmetric EoS is consistent with flow data analyses of heavy ion collisions and points to a deconfinement transition at about 0.55 fm^-3.
description: 9 pages, 3 figures, references added, Phys. Rev. C accepted for publication
Comparing spontaneous and pellet-triggered ELMs via non-linear extended MHD simulations
Creators: name: Cathey, A.
name: Hoelzl, M.
name: Futatani, S.
name: Lang, P. T.
name: Lackner, K.
name: Huijsmans, G. T. A.
name: Pamela, S. J. P.
name: Günter, S.
name: team, the JOREK
name: Team, the ASDEX Upgrade
name: Team, the EUROfusion MST1
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Injecting frozen deuterium pellets into an ELMy H-mode plasma is a well established scheme for triggering edge localized modes (ELMs) before they naturally occur. Based on an ASDEX Upgrade H-mode plasma, this article presents a comparison of extended MHD simulations of spontaneous type-I ELMs and pellet-triggered ELMs allowing to study their non-linear dynamics in detail. In particular, pellet-triggered ELMs are simulated by injecting deuterium pellets into different time points during the pedestal build-up described in [A. Cathey et al. Nuclear Fusion 60, 124007 (2020)]. Realistic ExB and diamagnetic background plasma flows as well as the time dependent bootstrap current evolution are included during the build-up to capture the balance between stabilising and destabilising terms for the edge instabilities accurately. Dependencies on the pellet size and injection times are studied. The spatio-temporal structures of the modes and the resulting divertor heat fluxes are compared in detail between spontaneous and triggered ELMs. We observe that the premature excitation of ELMs by means of pellet injection is caused by a helical perturbation described by a toroidal mode number of n = 1. In accordance with experimental observations, the pellet-triggered ELMs show reduced thermal energy losses and narrower divertor wetted area with respect to spontaneous ELMs. The peak divertor energy fluency is seen to decrease when ELMs are triggered by pellets injected earlier during the pedestal build-up.
Landau-Zener problem in a three-level neutrino system with non-linear time dependence
Creators: name: Keränen, P.
name: Maalampi, J.
name: Myyryläinen, M.
name: Riittinen, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the level-crossing problem in a three-level system with non-linearly time-varying Hamiltonian (time-dependence $t^{-3}$). We study the validity of the so-called independent crossing approximation in the Landau-Zener model by making comparison with results obtained numerically in density matrix approach. We also demonstrate the failure of the so-called "nearest zero" approximation of the Landau-Zener level-crossing probability integral.
description: 11 pages, 3 figures. To be published in Physical Review D
An evaluation of stakeholder involvement in the B.C. Ministry of Forests planning process
Creators: name: Duffy, Dorli M.
Publisher: name: University of British Columbia
Year: 2008

description: Disputes over forest land use and forest land management continue despite a formal planning process administered by the Ministry of Forests that is designed to achieve integrated resource use planning on B.C. Crown lands. These disputes result in costly and time-consuming delays in the completion and implementation of forestry plans. Calls continue for improved stakeholder participation and effective resolution of disputes and conflicts by the Ministry of Forests. At the same time, there is growing interest among decision-makers in alternative dispute resolution strategies, and particularly in the opportunities associated with consensus-based decision-making. The primary purpose of this thesis is to evaluate the Ministry of Forests forest planning process to determine if inadequacies in the institutional arrangements contribute to inadequate stakeholder involvement, thereby contributing to ongoing forestry disputes. Through a review of literature on participatory democracy and conflict management, twelve normative criteria are extracted, comprising elements of a planning and decision-making process which contribute to fairness, efficiency and stability in decision-making. These criteria are applied to the Ministry of Forests planning framework. Generally, the current planning framework proves inadequate in terms of making provisions for stakeholder involvement and conflict management. Decision-making by government provides limited opportunities for stakeholder involvement. Reforms to the planning process are necessary if fair, efficient and stable decisions are to be realized. Legislation must be amended to provide for meaningful stakeholder involvement, an appeal process and improved access to information. A comprehensive planning document which clearly defines the planning and decision-making processes is required. It should also clearly outline stakeholder involvement opportunities, key decision points and the appeal process. Provisions are required for intervenor funding, written reasons for decisions and effective monitoring of decision implementation. These revisions will contribute to a process which builds trust, relationships and understanding between forestry stakeholders in an effort to reduce forestry conflicts and disputes in this province.
Elicitation session: Object pronouns, relative clauses, tense-aspect
Creators: name: Ngolele, Christophère
name: Hyman, Larry M.
name: Lionnet, Florian
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: teg

description: 8 WAV files, 1 PDF file. Includes past, present, future, past progressive, perfect. PDF file is scan of corresponding pages from Lionnet's field notes (pp. 166-). See related file bundle for Hyman field notes.
A new tigliane-type diterpenoid from Euphorbia tirucalli
Creators: name: Weng, Han-Zhuang
name: Tian, Yang
name: Zhang, Jun-Sheng
name: Huang, Jia-Luo
name: Tang, Gui-Hua
name: Yin, Sheng
Publisher: name: Taylor & Francis
Year: 2021
Subjects: Biochemistry
Pharmacology
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified

description: Five tigliane (1−5) and one ingenane (6) diterpenoids were isolated from the ethanol extract of Euphorbia tirucalli. The structures of these compounds were identified based on analysis of their spectroscopic data. Among them, compound 12-O-(2E,4E,6E,8E-tetradecatetraenoyl)-13-O-isobutyroyl-4β-deoxyphorbol (1) was a new tigliane. The Rho123 effluxion assay showed that tiglianes with a trans-fused 5/7 ring system such as compounds 1, 2, and 4 had potent inhibitory activity against P-glycoprotein in HepG2/ADR cells.
Temperature Equilibration Due to Charge State Fluctuations in Dense Plasmas
Creators: name: Baggott, R. A.
name: Rose, S. J.
name: Mangles, S. P. D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The charge states of ions in dense plasmas fluctuate due to collisional ionization and recombination. Here we show how, by modifying the ion interaction potential, these fluctuations can mediate energy exchange between the plasma electrons and ions. Moreover, we develop a theory for this novel electron-ion energy transfer mechanism. Calculations using a random walk approach for the fluctuations suggest that the energy exchange rate from charge state fluctuations could be comparable to direct electron-ion collisions. This mechanism is, however, predicted to exhibit a complex dependence on the temperature and ionization state of the plasma, which could contribute to our understanding of significant variation in experimental measurements of equilibration times.
The Impact of Racial Identity on the Educational Experiences of Multiracial, College Undergraduates
Creators: name: Harris, Corenne Marie
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Education
subject: Multiracial
subject: Perceived Race
subject: Racial Identity

description: While the impact of racial identity on students' educational experiences has been studied for years, there has been little such research focused on multiracial individuals. The purpose of this study is to explore how racial identity has shaped the educational experiences of multiracial undergraduates, particularly in their transition to college. Transitioning into college from high school, which often requires entering a very different social and educational environment, can be life changing for students, and racial identity can play a role in how students interact and identify with other students as well as teachers. An interview based qualitative methodology was used to explore the educational experiences of four multiracial undergraduate students. Individual face-to-face interviews were used to learn about the four participants' experiences. Focusing on multiracial students, who are often left out of the discussion when talking about the impact racial identity has on various educational experiences, will contribute to research on the relationship between racial identity and education. Study findings showed that the participants experienced few, if any, negative effects on their educational experiences, due to their racial identity or how others perceived them, racially. Overall, participants felt that being multiracial was an advantage in terms of connecting with a diverse group of peers in school settings.
Facility location in supply chain design. Theory and applications. The case of a furniture company
Creators: name: Καρανάτσιος, Παναγιώτης Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Πρόβλημα χωροθέτησης
Τοποθεσία αποθήκης
Τοποθεσία καταστήματος λιανικής
Facility location problem
Warehouse location
Retail location

description: In a constantly changing socio-economic environment every business corporation needs to gain the ability to take the right choices in order to keep operating efficiently. The purpose of this current assignment is to deeply investigate the significant role the facility establishment plays in the designing of a supply chain network. The decisions taken are critical for the company as they necessitate high amounts of money and cannot be easily altered. More specifically the dissertation focuses on the retail facility location part of the supply chain and on the establishment of a warehouse as the case study investigates the opening of a new retail store and warehouse facility of a prominent furniture company in the city of Thessaloniki. The solution approaches are various and of different viewpoints. There are two basic categories of solutions implemented, the simple to formulate methods like the weighted factor rating method and the load distance technique, and a more sophisticated multi criteria method, that of analytic hierarchy process. The assignment intends to compare the two generic categories in order to identify the more suitable approach given the circumstances. To conclude the results of these approaches may differ and it is up to the decision maker to take the right choice.
description: Σε ένα συνεχώς μεταβαλλόμενο κοινωνικοοικονομικό περιβάλλον κάθε επιχειρηματικός οργανισμός χρειάζεται να αποκτήσει την ικανότητα να παίρνει τις σωστές αποφάσεις ούτως ώστε να συνεχίζει να λειτουργεί αποτελεσματικά. Ο στόχος της παρούσας εργασίας είναι να διερευνηθεί σε βάθος ο σημαντικός ρόλος της επιλογής τοποθεσίας κατά τον σχεδιασμό της εφοδιαστικής αλυσίδας. Οι αποφάσεις που λαμβάνονται είναι καίριας σημασίας για την επιχείρηση μιας και απαιτούν μεγάλα χρηματικά ποσά και δεν μπορούν εύκολα να διαφοροποιηθούν. Πιο συγκεκριμένα η διπλωματική εργασία εστιάζει στην επιλογή τοποθεσίας εγκατάστασης λιανικού καταστήματος ως μέρος της εφοδιαστικής αλυσίδας καθώς και στην εγκαθίδρυση τοποθεσίας αποθήκευσης μιας εξέχουσας εταιρίας επίπλων στην πόλη της Θεσσαλονίκης. Οι τεχνικές επίλυσης είναι διάφορες και από διαφορετικές οπτικές γωνίες. Υπάρχουν δυο βασικές κατηγορίες λύσεων που χρησιμοποιούνται, οι εύκολες να μοντελοποιηθούν όπως η επονομαζόμενη weighted factor rating και load distance technique, και οι πιο σύνθετες μέθοδοι πολλαπλών κριτηρίων, πιο συγκεκριμένα η analytic hierarchy process. Η εργασίας στοχεύει να συγκρίνει τις δυο γενικές κατηγορίες έτσι ώστε να αναγνωρίσει την πιο κατάλληλη προσέγγιση δεδομένων των συνθηκών που δίδονται. Για να ολοκληρώσουμε, τα αποτελέσματα των προσεγγίσεων αυτών μπορεί να διαφέρουν και είναι στο χέρι του λαμβάνοντα την απόφαση να κάνει την σωστή επιλογή.
Optical studies of the ultraluminous X-ray source NGC1313 X-2
Creators: name: Liu, Jifeng
name: Bregman, Joel
name: Miller, Jon
name: Kaaret, Philip
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: NGC1313 X-2 was among the first ultraluminous X-ray sources discovered, and has been a frequent target of X-ray and optical observations. Using the HST/ACS multi-band observations, this source is identified with a unique counterpart within an error circle of $0\farcs2$. The counterpart is a blue star on the edge of a young cluster of $\le10^7$ years amid a dominant old stellar population. Its spectral energy distribution is consistent with that for a Z=0.004 star with 8.5 $M_\odot$ about $5\times10^6$ years old, or for an O7 V star at solar metallicity. The counterpart exhibited significant variability of $Δm = 0.153\pm0.033$ mag between two F555W observations separated by three months, reminiscent of the ellipsoidal variability due to the orbital motion of this ULX binary.
description: 21 pages, 7 figures, scheduled for the ApJ June 10, 2007, v662n 1 issue
Η εμπορία ανθρώπων
Creators: name: Χατζηαντωνίου, Αθανασία Εμμανουήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Εμπορία
Θύμα
Δουλεία
Trafficking
Victim
Slavery

description: Σκοπός της εργασίας ήταν η μελέτη του φαινομένου της εμπορίας ανθρώπων. Εξετάστηκε η σύγχρονη διάσταση του προβλήματος, οι μορφές που προσλαμβάνει η εμπορία ανθρώπων τόσο σήμερα, αλλά και κατά το παρελθόν, καθώς και οι αιτίες - παράγοντες ανάπτυξης του φαινομένου αυτού. Τις εισαγωγικές παρατηρήσεις και τη σκιαγράφηση του φαινομένου ως μία σύγχρονη μορφή δουλείας ακολούθησε η αναλυτική παρουσίαση της διάστασης του φαινομένου ειδικότερα στα πλαίσια της Ευρωπαϊκής Ένωσης. Ακόμη εξετάστηκε σε βάθος η ποινική αντιμετώπιση του εγκλήματος σε εθνικό πλαίσιο, έγινε εκτενής αναφορά στις πρόσφατες νομοθετικές αλλαγές και επιχειρήθηκε μία ερμηνευτική προσέγγιση του νόμου 3064/2002 που αποτελεί το βασικό νομοθέτημα. Προχωρώντας, αναφέρθηκαν οι ειδικότερες μορφές που μπορεί να λάβει η εμπορία ανθρώπων και ερευνήθηκαν τα ζητήματα που ανακύπτουν από τις επιμέρους αυτές μορφές. Τέλος, έγινε αναφορά σε πιθανούς τρόπους αντιμετώπισης συμπεριλαμβανομένων και των φορέων πρόληψης που έχουν συσταθεί για το σκοπό αυτό
description: The aim of the thesis was the study of the phenomenon of trafficking in human beings. The modern dimension of the problem was examined, as well as the forms, the causes and the factors that led to the appearance of the phenomenon today and during the past few years. The introductory remarks and the outline of the trafficking in human beings as a modern form of slavery, were followed by the analytical presentation of the phenomenon, especially within the European Union. In addition, the criminal treatment of the offence on national level was examined, recent legislative changes and an interpretative approach to Law 3064/2002, which is the basic legislation have been discussed in detail. Subsequently, the specific forms of human trafficking and the issues arising from these forms were examined. Finally, possible ways of facing the phenomenon were reported, including the prevention agencies set up for this purpose
Calculation of protective efficiency and reliability of the forest compartment of complex landscape system
Creators: name: Taras, Boyko
name: Ruda Mariia
name: Paslavskyi Mykhailo
name: Sokolov Serhiy
Publisher: name: Colloquium-journal
Year: 2019
Subjects: landscape complex
protective efficiency
reliability
compartment
homeostasis

description: The article deals with description and calculation of the labile reliability and protective efficiency of complex landscape system (CLS). For the forest compartments of the CLS of the Dniester Precarpathian region, the phytocoenotic cycle (including forest floor) is identified as an autonomous and completely independent link in the general soil-biotic cycle. Thus, the reliability of the annual renewal of living above-ground phytomass, that is, labile phytocoenotic reliability can be taken (with certain adjustments) as an indicator of the overall reliability of the forest compartment, including the inertial one, associated with a much longer soil-biotic cycle of metabolism, which corresponds to the first level of partial functional stability of forest compartments which we called labile phytocoenotic reliability. The second inertial soil-biotic level of the reliability of forest compartments, which covers the wider and slower metabolic cycle and includes the reliability component, is associated with the processes of formation and dynamics of soil organic matter and describes the calculation models with the inclusion of the parameter of the humus mass.
Beyond Hirsch Conjecture: walks on random polytopes and smoothed complexity of the simplex method
Creators: name: Vershynin, Roman
Publisher: name: arXiv
Year: 2006
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Functional Analysis (math.FA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: G.1.6

description: The smoothed analysis of algorithms is concerned with the expected running time of an algorithm under slight random perturbations of arbitrary inputs. Spielman and Teng proved that the shadow-vertex simplex method has polynomial smoothed complexity. On a slight random perturbation of an arbitrary linear program, the simplex method finds the solution after a walk on polytope(s) with expected length polynomial in the number of constraints n, the number of variables d and the inverse standard deviation of the perturbation 1/sigma. We show that the length of walk in the simplex method is actually polylogarithmic in the number of constraints n. Spielman-Teng's bound on the walk was O(n^{86} d^{55} sigma^{-30}), up to logarithmic factors. We improve this to O(log^7 n (d^9 + d^3 \s^{-4})). This shows that the tight Hirsch conjecture n-d on the length of walk on polytopes is not a limitation for the smoothed Linear Programming. Random perturbations create short paths between vertices. We propose a randomized phase-I for solving arbitrary linear programs, which is of independent interest. Instead of finding a vertex of a feasible set, we add a vertex at random to the feasible set. This does not affect the solution of the linear program with constant probability. This overcomes one of the major difficulties of smoothed analysis of the simplex method -- one can now statistically decouple the walk from the smoothed linear program. This yields a much better reduction of the smoothed complexity to a geometric quantity -- the size of planar sections of random polytopes. We also improve upon the known estimates for that size, showing that it is polylogarithmic in the number of vertices.
description: 39 pages, 3 figures. Final version. Parts of the argument are reorganized to make the paper more transparent. Figures added. Small mistakes and typos corrected
Broadband frequency filters with quantum dot chains
Creators: name: Ehrlich, Tilmann
name: Schaller, Gernot
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Two-terminal electronic transport systems with a rectangular transmission can violate standard thermodynamic uncertainty relations. This is possible beyond the linear response regime and for parameters that are not accessible with rate equations obeying detailed-balance. Looser bounds originating from fluctuation theorem symmetries alone remain respected. We demonstrate that optimal finite-sized quantum dot chains can implement rectangular transmission functions with high accuracy and discuss the resulting violations of standard thermodynamic uncertainty relations as well as heat engine performance.
description: 8+2+3 pages, 6 figures, to appear in PRB
Solving four word analogy problems : the role of specificity and inclusiveness
Creators: name: Morosan, David
Publisher: name: University of British Columbia
Year: 2008

description: The present work examined subjects' performance on eight types of four word analogy problems. Two critical dimensions distinguish among these analogy types: specificity and inclusiveness. Whole-part analogies such as hand : palm as foot : sole (read hand is to palm as foot is to sole) are specific because the association appearing in the two word pairs consist of spatial/functional relationships which are highly similar to each other. In contrast, analogies such as car : wheel as boat : mast are nonspecific because they use whole-part associations which are less similar to each other. Analogies are inclusive if they use relatively direct associations, as in the whole-part association illustrated by car : wheel. In contrast, noninclusive analogies require additional inferences between words, as illustrated in the part-part association bumper: wheel, which requires the object car to be inferred. Responses from undergraduate university subjects show that both inclusive and specific analogy problems were solved more quickly than their noninclusive and nonspecific counterparts, respectively. Experiment 1 illustrated these specificity and inclusiveness effects both in a recognition (multiple choice) paradigm, and a recall paradigm where subjects spoke their own answer choices aloud. Subsequent experiments were performed to examine the role of the association types and the role of word attributes in subjects' processing of these analogy problems. Experiment 2 attempted to prime subjects with the association type used in each block of analogy problems, but showed a very modest effect on solution latencies. In Experiment 3 reordering the words within analogy problems unexpectedly increased the latencies for many problems, apparently because different words appeared in the third word positions within them. Experiments 4 and 5 focussed directly on the study of specificity. Experiment 4 showed that the processing benefit found for specific analogies is due to the close match of word attributes between word pairs, not due to the attributes of the particular words used. Experiment 5 manipulated the taxonomic similarity of the subject matter addressed by the two pairs of words, and found that the use of word pairs from more taxonomically distant subject areas increased solution latencies for some analogy types. Experiment 6 required subjects to group analogy problems into categories they defined. This procedure validated six of the eight analogy types used in this thesis; the specificity distinction was not evident among the groups of problems formed by subjects. The discussion of these results supports a theoretical model of problem solving four word analogies which incorporates a stage-like, componential processing for nonspecific types, and a faster, more automatic processing for specific types. The discussions of empirical and theoretical work in this thesis also focussed more widely on its relevance to more practical uses of analogies in problem solving.
Electron transport and thermoelectric properties of layered perovskite LaBaCo2O5.5
Creators: name: Kundu, Asish K.
name: Raveau, B.
name: Caignaert, V.
name: Rautama, E. -L.
name: Pralong, V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have investigated the systematic transport properties of the layered 112-type cobaltite LaBaCo2O5.5 by means of electrical resistivity, magnetoresistance, electroresistance and thermoelectric measurements in various conditions. In order to understand the complex conduction mechanism of LaBaCo2O5.5, the transport data have been analyzed using different theoretical models. The system shows semiconductor-semiconductor like transition (TSC) around 326K, corresponding to ferromagnetic transition and in the low temperature region resistivity data follows the Motts variable range hopping model. Interestingly, near and below the room temperature this compound depicts significant change in electro- and magnetoresistance behavior, the latter one is noteworthy near the magnetic phase boundary. The temperature dependence of thermopower, S(T), exhibits p-type polaronic conductivity in the temperature range of 60-320K and reaches a maximum value of 303 uV/K (at 120K). In the low temperature AFM region, the unusual S(T) behavior, generally observed for the cobaltite series LnBaCo2O5.5 (Ln = Rare Earth), is explained by the electron magnon scattering mechanism as previously described for perovskite manganites.
description: 18 pages including figs
Efficient steady state solver for the hierarchical equations of motion approach: Formulation and application to charge transport through nanosystems
Creators: name: Kaspar, Christoph
name: Thoss, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: An iterative approach is introduced, which allows the efficient solution of the hierarchical equations of motion (HEOM) for the steady state of open quantum systems. The approach combines the method of matrix equations with an efficient preconditioning technique to reduce the numerical effort of solving the HEOM. Illustrative applications to simulate nonequilibrium charge transport in single-molecule junctions demonstrate the performance of the method.
Millimagnitude Optical Photometry for the Transiting Planetary Candidate OGLE-TR-109
Creators: name: Fernandez, Jose Miguel
name: Minniti, Dante
name: Pietrzynski, Grzegorz
name: Gieren, Wolfgang
name: Ruiz, Maria Teresa
name: Zoccali, Manuela
name: Udalski, Andrzej
name: Szeifert, Thomas
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present precise V-band photometry for the low-amplitude transit candidate star OGLE-TR-109. This is an extreme case among the transiting candidates found by the OGLE group because of the early spectral type of the star (F0V), of the low transit amplitude (A_I=0.008 mag), and of the very short period (P=0.58909 days) of the orbiting companion. Using difference image photometry, we are able to achieve millimagnitude errors in the individual data points. One transit of this star is well defined in our light curve. This confirms the OGLE detection and rules out the possibility of a false positive. The measurement of this transit allows to refine the transit amplitude (A_V=0.006 +/- 0.001 mag), and the ephemerides for this interesting system, as well as the radius of the possible orbiting companion (R_P=0.90 +/- 0.09 ~R_J), and the inclination of the orbit (i=77 +/- 5 deg). Two other transits observed at lower S/N confirm the period of this system measured by OGLE. There is no evidence for a blend of the F-type main sequence star with a redder eclipsing binary, or for secondary transits in the present observations. The absence of ellipsoidal modulation in the light curve of the primary rules out a low mass star companion or brown dwarf with M>14 +/- 8 M_J. The remaining possibilities for OGLE-TR-109 are a blend between the F-type star and a binary with a bluer primary star, or a new transiting extrasolar planet.
description: 24 pages (including figures) submitteed to ApJ, Accepted. 1 replacement (updated references)
Μελέτη υδραυλικών παραμέτρων σε περιοχή του υδροφορέα της λίμνης Κορώνειας, εκτάσεως 16kmX14km.Σχεδιασμός ισοκαμπυλών με τη βοήθεια της γεωστατιστικής
Creators: name: Σαββίδου, Μαρία Κλεάνθη
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Υδροφορέας
Διοχετευτικότητα
Αποθηκευτικότητα
Βαριογράμματα
Aquifer
Transmissibility
Storativity
Variograms

description: Στην παρούσα εργασία μελετήθηκε μια περιοχή στον υδροφορέα της λίμνης Κορώνειας (16kmX14km), φέρουσα δεκαπέντε γεωτρήσεις. Στις έντεκα από αυτές είχαν ήδη υπολογιστεί, από παλαιότερες μελέτες οι υδραυλικές παράμετροι του υδροφορέα, η διοχετευτικότητα (T) και η αποθηκευτικότητα (S), ενώ στις υπόλοιπες τέσσερις υπήρχαν στοιχεία παροχής και φορτίου. Σκοπός της εργασίας αυτής υπήρξε α) ο υπολογισμός των παραμέτρων T, S, του υδροφορέα, για τα υπόλοιπα τέσσερα πηγάδια, με τρείς υπολογιστικές μεθόδους: των Τheis, Jacob, και Ven Te Chow και β) η παρεμβολή σε όλο το χώρο του υδροφορέα των παραπάνω παραμέτρων και ο σχεδιασμός ισοκαμπυλών των Τ και S με τη χρήση του σχεδιαστικού προγράμματος SURFER. Για τους υπολογισμούς των παραμέτρων Τ και S χρησιμοποιήθηκαν οι παραπάνω μεθόδοι και υπήρξε ταύτιση των αποτελεσμάτων των τριών μεθόδων για την κάθε μία γεώτρηση. Τα αριθμητικά αποτελέσματα των παραμέτρων των τεσσάρων γεωτρήσεων συνδυάστηκαν με τα δεδομένα των υπολοίπων έντεκα γεωτρήσεων και με τη βοήθεια του προγράμματος SURFER έγινε ο σχεδιασμός των ισοκαμπυλών T, S σε όλη την περιοχή του υδροφορέα στην οποία βρίσκονται οι δεκαπέντε γεωτρήσεις.Τα σχέδια παρουσιάστηκαν τόσο σε κάτοψη όσο και σε αξονική τριδιάστατη μορφή. Επίσης από το SURFER προέκυψαν τα βαριογράμματα για τα δεδομένα των παραπάνω γεωτρήσεων
description: This paper investigates an area that is a part of Koronia Lake’s aquifer (16kmX14km). Fifteen pumped wells are situated on this area. The hydraulic constants, Storativity and Transmissibility, have already been calculated for the eleven of the wells. For the rest four wells there have been only the flow rate (Q) and the drawn-down (s).The main reason for this investigation has been a) the computation of the hydraulic constants: Storativity and Transmissibility, for the rest four wells. This computation can be performed in three scientific methods, THEIS,VEN TE CHOW and JACOB, b) the plottation of these hydraulic constants after predicting the value of them, at a given point by computing a weighted average of the known values of the hydraulic constants in the neighborhood of the point. Using the three scientific methods, the computation results of Storativity and Transmissibility have been equal to other eleven ones, so they have been combined with, in order to plot variograms and 3d plans of Storativity and Transmissibility, based on geostatistic program, SURFER
Elicitation session: Noun classes, numerals, relative clauses
Creators: name: Ngolele, Christophère
name: Hyman, Larry M.
name: Lionnet, Florian
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: teg

description: 8 WAV files, 1 PDF file. PDF file is scan of corresponding pages from Lionnet's field notes (pp. 148-166). See related file bundle for Hyman field notes.
Multi-functional microwave photonic radar system for simultaneous distance and velocity measurement and high-resolution microwave imaging
Creators: name: Liang, Dingding
name: Jiang, Lizhong
name: Chen, Yang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: Applied Physics (physics.app-ph)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: A photonic-assisted multi-functional radar system for simultaneous distance and velocity measurement and high-resolution microwave imaging is proposed and experimentally demonstrated by using a composite transmitted microwave signal of a single-chirped linearly frequency-modulated (LFM) signal and a single-tone microwave signal. In the system, the transmitted signal is generated via photonic frequency up-conversion based on a single integrated dual-polarization dual-parallel Mach-Zehnder modulator (DPol-DPMZM), whereas the echo signals scattered from the target are de-chirped to two low-frequency signals using a microwave photonic frequency mixer. By using the two low-frequency de-chirped signals, the real-time distance and radial velocity of the moving target can be measured accurately according to the round-trip time of the echo signal and its Doppler frequency shift. Compared with the previous reported distance and velocity measurement methods, where two LFM signals with opposite chirps are used, these parameters can be obtained using only a single-chirped LFM signal and a single-tone microwave signal. Meanwhile, high-resolution inverse synthetic aperture radar (ISAR) imaging can also be realized using ISAR imaging algorithms. An experiment is performed to verify the proposed multi-functional microwave photonic radar system. An up-chirped LFM signal from 8.5 to 12.5 GHz and an 8.0 GHz single-tone microwave signal are used as the transmitted signal. The results show that the absolute measurement errors of distance and radial velocity are less than 5.9 cm and 2.8 cm/s, respectively. ISAR imaging results are also demonstrated, which proves the high-resolution and real-time ISAR imaging ability of the proposed system.
description: 16 pages, 9 figures