cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Distributed Privacy-Preserving Data Analysis in NFDI4Health with the Personal Health Train
Creators: name: Mou, Yongli
name: Li, Feifei
name: Weber, Sven
name: Haneef, Sabith
name: Meine, Hans
name: Caldeira, Liliana
name: Jaberansary, Mehrshad
name: Welten, Sascha
name: Yediel Ucer, Yeliz
name: Prause, Guido
name: Decker, Stefan
name: Beyan, Oya
name: Kirsten, Toralf
Publisher: name: Zenodo
Year: 2023

description: Data sharing is often met with resistance in medicine and healthcare, due to the sensitive nature and heterogeneous characteristics of health data. The lack of standardization and semantics further exacerbate the problems of data fragments and data silos, which makes data analytics challenging. NFDI4Health aims to develop a data infrastructure for personalized medicine and health research and to make data generated in clinical trials, epidemiological, and public health studies FAIR (Findable, Accessible, Interoperable, and Reusable). Since this research data infrastructure is distributed over various partners contributing their data, the Personal Health Train (PHT) complements this infrastructure by providing a required analytics infrastructure considering the distribution of data collections. Our research has demonstrated the capability of conducting data analysis on sensitive data in various formats distributed across multiple institutions and shown great potential to facilitate medical and health research.
Additional file 2 of Longitudinal trajectory of acidosis and mortality in acute kidney injury requiring continuous renal replacement therapy
Creators: name: Lee, Jinwoo
name: Kim, Seong Geun
name: Yun, Donghwan
name: Kang, Min Woo
name: Kim, Yong Chul
name: Kim, Dong Ki
name: Oh, Kook-Hwan
name: Joo, Kwon Wook
name: Kim, Yon Su
name: Koo, Ho Seok
name: Han, Seung Seok
Publisher: name: figshare
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer

description: Additional file 2:Table S2. Baseline serum pH determinants according to the pH clusters.
Effect of the toroidal magnetic field on the runaway instability of relativistic tori
Creators: name: Hamersky, Jaroslav
name: Karas, Vladimir
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Runaway instability operates in fluid tori around black holes. It affects systems close to the critical (cusp overflowing) configuration. The runaway effect depends on the radial profile l(R) of the angular momentum distribution of the fluid, on the dimension-less spin a of the central black hole, and other factors, such as self-gravity. Previously it was demonstrated that, for the power-law dependence of the radial angular momentum profile, non-magnetized tori always become runaway stable for a sufficiently high positive value of q. Here we discuss the role of runaway instability within a framework of an axially symmetric model of perfect fluid endowed with a purely toroidal magnetic field. The gradual accretion of material over the cusp transfers the mass and angular momentum into the black hole, thereby changing the intrinsic parameters of the Kerr metric. We studied the effect of the ratio of gas to magnetic pressure and other parameters of the model on the evolution of critical configurations that are just on the verge of cusp overflow. We show that the toroidal magnetic component inside an accretion torus does not change the frequency of its oscillations significantly. We identify these oscillations as the radial epicyclic mode. These weak effects can trigger the runaway instability even in situations when the purely hydrodynamical regime of the torus is stable. On the other hand, in most cases the stable configuration remains unaffected, and the initial deviations gradually decay after several orbital periods. We show examples of the torus evolution depending on the initial magnetization beta, the slope q, and the spin a. The toroidal magnetic field plays a more important role in the early phases of the accretion process until the perturbed configuration finds a new equilibrium or disappears because of the runaway instability.
description: Astronomy and Astrophysics accepted
title: Μεθοδολογικό πλαίσιο για το συνδυασμό μεθόδων ταξινόμησης στην ανάπτυξη μοντέλων εκτίμησης του πιστωτικού κινδύνου
Creators: name: Χατζή Ευαγγελία
Publisher: name: Technical University of Crete
Year: 2002

description: Μη διαθέσιμο
Swiss-AL: Language Data Platform for Applied Sciences
Creators: name: Rothenhäusler, Klaus
name: Fluor, Matthias
name: Dreesen, Philipp
name: Lemmenmeier, Dolores
name: Cho, Sooyeon
name: Krasselt, Julia
Publisher: name: Zenodo
Year: 2023
Subjects: open research data
corpus linguistics
discourse analysis

description: Poster presented at the 1st Conference on Research Data Infrastructure (Karlsruhe, 12.-14. September 2023).
Local Measurements of the Superconducting Pairing Symmetry in CuxBi2Se3
Creators: name: Levy, Niv
name: Zhang, Tong
name: Ha, Jeonghoon
name: Sharifi, Fred
name: Talin, A. Alec
name: Kuk, Young
name: Stroscio, Joseph A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Topological superconductors represent a newly predicted phase of matter that is topologically distinct from conventional superconducting condensates of Cooper pairs. As a manifestation of their topological character, topological superconductors support solid-state realizations of Majorana fermions at their boundaries. The recently discovered superconductor CuxBi2Se3 has been theoretically proposed as an odd-parity superconductor in the time-reversal-invariant topological superconductor class and point-contact spectroscopy measurements have reported the observation of zero-bias conductance peaks corresponding to Majorana states in this material. Here we report scanning tunneling spectroscopy (STS) measurements of the superconducting energy gap in CuxBi2Se3 as a function of spatial position and applied magnetic field. The tunneling spectrum shows that the density of states at the Fermi level is fully gapped without any in-gap states. The spectrum is well described by the Bardeen-Cooper-Schrieffer (BCS) theory with a momentum independent order parameter, which suggests that Cu0.2Bi2Se3 is a classical s-wave superconductor contrary to previous expectations and measurements.
The diversity of travel behaviour: Motives and social interactions in leisure time activities
Creators: name: Stauffacher, Michael
name: Schlich, Robert
name: Axhausen, Kay W.
name: Scholz, Roland W.
Publisher: name: ETH Zurich
Year: 2005
Subjects: subject: TOURIST TRAFFIC + LEISURE TRAVEL (TRANSPORTATION AND TRAFFIC)
subject: Travel demand
subject: TRAVELLER BEHAVIOUR (TRANSPORTATION AND TRAFFIC)
subject: Activity
subject: REISEVERKEHR (VERKEHR UND TRANSPORT)
subject: Leisure time
subject: Travel diary
subject: VERKEHRSVERHALTEN DER BEVÖLKERUNG (VERKEHR UND TRANSPORT)
subject: Need
subject: RECREATIONAL TRAFFIC + LEISURE TRAFFIC (TRANSPORTATION AND TRAFFIC)
subject: Motive
subject: FREIZEITVERKEHR (VERKEHR UND TRANSPORT)
subject: info:eu-repo/classification/ddc/624
subject: info:eu-repo/classification/ddc/380
subject: Civil engineering
subject: FOS: Civil engineering
subject: Commerce, communications, transport

description: Arbeitsberichte Verkehrs- und Raumplanung, 328
THE STUDY OF POMOLOGICAL AND BIOCHEMICAL ATTRIBUTES OF SOME WALNUT (JUGLANS REGIA L.) GENOTYPES FROM GHAZNI REGION, GHAZNI-AFGHANISTAN
Creators: name: Darwish, Mohammad Tariq
name: Rohullah Niazi
name: Faqiri, Ghulam Maroof
Publisher: name: Международный журнал гуманитарных и естественных наук
Year: 2022
Subjects: GENOTYPE
MORPHOLOGICAL TRAITS
WALNUT
YIELD AND YIELD COMPONENTS

description: This study was conducted in 2021 to evaluate the growth and biochemical characteristics of a number of different walnut genotypes collected from Ghazni, Afghanistan. The experiment was conducted in a nested design with four replications. In this study, the genotypes namely Sanghe shamal Kabul, Kaghzie Qarabagh, Jaji ariob and Shahrestani were included. Based on the results of this study, Kaghzie Qarabagh genotype was evaluated in terms of important traits such as number of inflorescences, ease of kernel separation, wood bark thickness, Fruit ripening time and kernel size as a superior genotype among the four walnut genotypes. Also, Jaji Ariob genotype was a weak genotype in terms of evaluated traits among genotypes. Regarding quantitative variables, the results of analysis of variance showed Fruit and kernel weight, kernel volume, Petiole length, fruit diameter and volume, Length to width ratio of fruit, phenol content, flavonoids and vitamin C were affected by different walnut genotypes. The highest fruit weight with an average of 55.57 gr was obtained in Kaghzie Qarabagh genotype and the lowest with an average of 43.9 gr was obtained in Shahrestani genotype. The highest kernel weight with an average of 26.97 gr was related to Kaghzie Qarabagh genotype and the lowest kernel with an average of 19.22 gr was related to Shahrestani genotype. In general, according to the results obtained from the evaluation of pomological and biochemical traits, Kaghzie Qarabagh genotype can be suggested as a suitable genotype for cultivation in Ghazni region.
title: Σχεδιασμός και εγκατάσταση εργαστηριακής μονάδας βιολογικής αποδόμησης αποβλήτων
Creators: name: Μακρυπόδης Γεώργιος
Publisher: name: Technical University of Crete
Year: 2005

description:  Εισαγωγή -- 2. Βασικές αρχές βιοεξυγίανσης -- 3. Εισαγωγή στον βιοαερισμό εδαφών -- 4. Σχεδιασμός συστημάτων βιοαερισμού -- 5. Υλοποίηση βιοαερισμού - έλεγχος απόδοσης -- 6. Ο βιοαντιδραστήρας στερεών αποβλήτων -- 7. Μικρής κλίμακας βιοαντιδραστήρες απορριμάτων -- 8. Διαχειριστική πρόταση -- 9. Εργαστηριακός βιοαντιδραστήρας στερεών αποβλήτων -- 10. Πειραματικά αποτελέσματα - προτάσεις
Additional file 1 of Estimation of marginal structural models under irregular visits and unmeasured confounder: calibrated inverse probability weights
Creators: name: Kalia, Sumeet
name: Saarela, Olli
name: Escobar, Michael
name: Moineddin, Rahim
name: Greiver, Michelle
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Appendix.
Hawking-Page phase transition in BTZ black hole revisited
Creators: name: Eune, Myungseok
name: Kim, Wontae
name: Yi, Sang-Heon
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the Hawking-Page phase transition between the BTZ black hole of $M \ge 0$ and the thermal soliton of $M=-1$. In this system, there exists a mass gap so that there does not seem to exist a continuous thermodynamic phase transition. We consistently construct the off-shell free energies of the black hole and the soliton by properly taking into account the conical space. And then, the continuous off-shell free energy to describe tunneling effect can be realized through non-equilibrium solitons.
description: 13 pages, 3 figures, minor clarifications and corrections, accepted for publication in JHEP
title: Αξιοποίηση του υδάτινου δυναμικού της Κρήτης για ενεργειακούς σκοπούς
Creators: name: Πατρικαλάκη Ελευθερία
Publisher: name: Technical University of Crete
Year: 2005

description: φ. 1: Ανανεώσιμες πηγές ενέργειας και υδροηλεκτρικοί σταθμοί -- Κεφ. 2: Το σύστημα ηλεκτρικής ενέργειας στην Κρήτη -- Κεφ. 3: Το υδατικό δυναμικό της Κρήτης -- Κεφ. 4: Διαχείριση υδατικών πόρων Κρήτης -- Κεφ. 5: Καταγραφή υδροηλεκτρικών έργων στην Κρήτη -- Κεφ. 6: Προτεινόμενες θέσεις υδροηλεκτρικών σταθμών
Search for 2β decays of 96Ru and 104Ru by ultra-low background HPGe gamma spectrometry at LNGS: final results
Creators: name: Belli, P.
name: Bernabei, R.
name: Cappella, F.
name: Cerulli, R.
name: Danevich, F. A.
name: d'Angelo, S.
name: Incicchitti, A.
name: Kovtun, G. P.
name: Kovtun, N. G.
name: Laubenstein, M.
name: Poda, D. V.
name: Polischuk, O. G.
name: Shcherban, A. P.
name: Solopikhin, D. A.
name: Suhonen, J.
name: Tretyak, V. I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: An experiment to search for double beta decay processes in 96Ru and 104Ru, which are accompanied by gamma rays, has been realized in the underground Gran Sasso National Laboratories of the I.N.F.N. (Italy). Ruthenium samples with masses of about (0.5-0.7) kg were measured with the help of ultra-low background high purity Ge gamma ray spectrometry. After 2162 h of data taking the samples were deeply purified to reduce the internal contamination of 40K. The last part of the data has been accumulated over 5479 h. New improved half life limits on 2β+/εβ+/2ε processes in 96Ru have been established on the level of 10^{20} yr, in particular for decays to the ground state of 96Mo: T1/2(2ν2β+) > 1.4 10^{20} yr, T1/2(2νεβ+) > 8.0 10^{19} yr and T1/2(0ν2K) > 1.0 10^{21} yr (all limits are at 90% C.L.). The resonant neutrinoless double electron captures to the 2700.2 keV and 2712.7 keV excited states of 96Mo are restricted as: T1/2(0νKL) > 2.0 10^{20} yr and T1/2(0ν2L) > 3.6 10^{20} yr, respectively. Various two neutrino and neutrinoless 2β half lives of 96Ru have been estimated in the framework of the QRPA approach. In addition, the T1/2 limit for 0ν2β- transitions of 104Ru to the first excited state of 104Pd has been set as > 6.5 10^{20} yr.
description: 14 pages, 5 figures, 2 tables; version accepted for publication on Phys. Rev. C
title: Η ατμοσφαιρική ρύπανση και οι επιπτώσεις από την κατασκευή του μετρό στην πόλη της Θεσσαλονίκης
Creators: name: Τζαβάρα Ιωάννα
Publisher: name: Technical University of Crete
Year: 2005

description: Μη διαθέσιμο
title: Donna in guerra, uomo in crisi : familial roles and patriarchal legacies in Dacia Maraini and Natalia Ginzburg
Creators: name: Manson, Christina Siggers
Publisher: name: University of Kent
Year: 2023

description: In this study of Dacia Maraini and Natalia Ginzburg’s literature, which is the first to offer an in-depth comparative analysis of the two authors, I consider their views on patriarchal legacies such as rape, violence, and abortion and how they depict their characters fulfilling familial roles within Italian patriarchal society. In my Introduction, I outline briefly the major changes affecting women and the family in post-war Italy and present Maraini and Ginzburg’s reactions to such legal and social changes. I also consider the influence of Fascism and Catholicism on social expectations and behaviour. Then, in the first chapter, I look at the authors’ opinions on women’s position in Italian society, considering issues such as violence and rape, which are used by patriarchy to control women and their bodies. I then turn to examples of characters in the authors’ fiction who attempt to break the chain of patriarchal legacies and strive for personal independence, with varying success. In the next four chapters, I examine in turn the presentation of husbands, wives, mothers, and fathers in Maraini and Ginzburg’s fiction, looking at socio-historical influences that affect characters in these familial roles and expanding on and adding to previous critical evaluation of their characters. I will judge how the pressures placed on individuals by social expectations shape the characters’ behaviour and how familial labels constrict the movement of men and women, as they struggle to find an identity that is independent of their familial duties. Throughout this study, I will consider differences and similarities in Maraini and Ginzburg’s writing, offering original readings of their characters and novels. I will focus in particular on how their different priorities regarding their literature results in diverse writing styles and choice of subject matter, which make a comparison of their work valid and compelling.
title: Προσομοίωση της λειτουργίας της εγκατάστασης επεξεργασίας λυμάτων της Κ.ΕΡ.ΕΦ.Υ.Τ με το πακέτο λογισμικού STOAT
Creators: name: Χριστινάκη Χρυσούλα
Publisher: name: Technical University of Crete
Year: 2002

description:  Εισαγωγή -- 2. Σκοπιμότητα της προσομοίωσης -- 3. Το πακέτο STOAT -- 4. Περιγραφή της πιλοτικής μονάδας επεξεργασίας λυμάτων ΚΕΡΕΦΥΤ -- 5. Προσομοίωση πειραματικών δεδομένων -- 6. Το πακέτο STOAT ως εκπαιδευτικό εργαλείο
Three Mile Island und Kaiseraugst: Die Auswirkungen des Störfalls im US-Kernkraftwerk Harrisburg 1979 auf das geplante KKW Kaiseraugst
Creators: name: Zetti, Daniela F.
Publisher: name: ETH Zurich
Year: 2001
Subjects: HISTORY OF TECHNOLOGY + HISTORY OF ENGINEERING
RADIATION ACCIDENTS/RADIOACTIVE AND IONIZING RADIATION (RESCUE ASSISTANCE)
KERNREAKTORUNFÄLLE (KERNTECHNIK)
KERNKRAFTWERKE, KKW + ATOMKRAFTWERKE, AKW (KERNTECHNIK)
TECHNIKGESCHICHTE + GESCHICHTE DES INGENIEURWESENS
HARRISBURG, PENNSYLVANIA (USA)
NUCLEAR REACTOR ACCIDENTS (NUCLEAR ENGINEERING)
Kernkraftwerk Kaiseraugst AG
STRAHLENUNFÄLLE/RADIOAKTIVE UND IONISIERENDE STRAHLUNG (RETTUNGSWESEN)
NUCLEAR POWER PLANTS, NPP + ATOMIC POWER PLANTS, APP (NUCLEAR ENGINEERING)
info:eu-repo/classification/ddc/333.7
info:eu-repo/classification/ddc/600
Natural resources, energy and environment
Technology (applied sciences)

description: Preprints zur Kulturgeschichte der Technik, 13
title: Αποτίμηση των διοικητικών ικανοτήτων υψηλόβαθμων στελεχών
Creators: name: Λίτος Χαράλαμπος
Publisher: name: Technical University of Crete
Year: 2004

description: φ. 1: Επισκόπηση ερευνητικού πεδίου -- Κεφ. 2: Μεθοδολογικό πλαίσιο -- Κεφ. 3: Επεξεργασία των αποτελεσμάτων-ανάπτυξη μοντέλου -- Κεφ. 4: Χαρακτηριστικά που προσδιορίζουν και ενισχύουν την ηγετική φυσιογνωμία -- Kef. 5: Συναισθηματική επιδεξιότητα -- Κεφ. 6: Διαχείριση της ομαδικής λειτουργίας -- Κεφ. 7: Ενίσχυση της παρακίνησης -- Κεφ. 8: Η διοίκηση της γνώσης-διοικητικές συμπεριφορές και επίδραση στο διοικητικό κλίμα -- Κεφ. 9: Αξιολόγηση των επιχειρησιακών λειτουργιών με τη χρήση της ισορροπημένης κάρτας επίδοσης
Surface Acoustic Wave-Driven Ferromagnetic Resonance in Nickel Thin Films: Theory and Experiment
Creators: name: Dreher, L.
name: Weiler, M.
name: Pernpeintner, M.
name: Huebl, H.
name: Gross, R.
name: Brandt, M. S.
name: Goennenwein, S. T. B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present an extensive experimental and theoretical study of surface acoustic wave-driven ferromagnetic resonance. In a first modeling approach based on the Landau-Lifshitz-Gilbert equation, we derive expressions for the magnetization dynamics upon magnetoelastic driving that are used to calculate the absorbed microwave power upon magnetic resonance as well as the spin current density generated by the precessing magnetization in the vicinity of a ferromagnet/normal metal interface. In a second modeling approach, we deal with the backaction of the magnetization dynamics on the elastic wave by solving the elastic wave equation and the Landau-Lifshitz-Gilbert equation selfconsistently, obtaining analytical solutions for the acoustic wave phase shift and attenuation. We compare both modeling approaches with the complex forward transmission of a LiNbO$_3$/Ni surface acoustic wave hybrid device recorded experimentally as a function of the external magnetic field orientation and magnitude, rotating the field within three different planes and employing three different surface acoustic wave frequencies. We find quantitative agreement of the experimentally observed power absorption and surface acoustic wave phase shift with our modeling predictions using one set of parameters for all field configurations and frequencies.
description: 13 pages, 9 figures
Statistical Topological Insulators
Creators: name: Fulga, I. C.
name: van Heck, B.
name: Edge, J. M.
name: Akhmerov, A. R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We define a class of insulators with gapless surface states protected from localization due to the statistical properties of a disordered ensemble, namely due to the ensemble's invariance under a certain symmetry. We show that these insulators are topological, and are protected by a $\mathbb{Z}_2$ invariant. Finally, we prove that every topological insulator gives rise to an infinite number of classes of statistical topological insulators in higher dimensions. Our conclusions are confirmed by numerical simulations.
description: 6 pages, 1 table, 5 figures, this is the final, published version
title: Ασαφής έλεγχος αναμονητικών συστημάτων
Creators: name: Τζωαννόπουλος Κωνσταντίνος-Δημήτριος
Publisher: name: Technical University of Crete
Year: 2004

description: φ. 1: Εισαγωγή -- Κεφ. 2: Έλεγχος αριθμού εξυπηρετούντων -- Κεφ. 3: Έλεγχος του ρυθμού εξυπηρέτησης -- Κεφ. 4: Έλεγχος του πρωτοκόλλου ουράς -- Κεφ. 5: Έλεγχος της εισόδου πελατών
Additional file 1 of Prenatal and childhood chlordecone exposure, cognitive abilities and problem behaviors in 7-year-old children: the TIMOUN mother–child cohort in Guadeloupe
Creators: name: Oulhote, Youssef
name: Rouget, Florence
name: Michineau, Léah
name: Monfort, Christine
name: Desrochers-Couture, Mireille
name: Thomé, Jean-Pierre
name: Kadhel, Philippe
name: Multigner, Luc
name: Cordier, Sylvaine
name: Muckle, Gina
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Additional file 1: Figure S1. Flow chart of the Timoun study (Neurodevelopment at seven years). Figure S2. Conceptual Directed Acyclic Graph representing the associations between chlordecone exposure, FSIQ, and potential confounders. Figure S3. Correlation plot of maternal and 7-years exposures. Table S1. Univariate associations between primary outcomes and characteristics of the study population. Table S2. Associations between cord- and 7-years blood chlordecone concentrations and cognitive and behavioral functions using SEM analyses, stratified by sex. Figure S4. Dose response relationship between cord- and 7-years blood chlordecone concentrations and WISC-IV scores. Figure S5. Dose response relationship between cord- and 7-years blood chlordecone concentrations and behavioral latent functions. Figure S6. Associations between cord-blood and 7-years chlordecone concentrations and WISC-IV composite scores obtained from the SEM path analysis with additional adjustment for co-exposures, stratified by sex. Figure S7. Associations between cord-blood and 7-years chlordecone concentrations and standardized behavioral functions obtained using SEM analyses with additional adjustment for co-exposures, stratified by sex.
Higher derivative effects for 4d AdS gravity
Creators: name: Smolic, Jelena
name: Taylor, Marika
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Motivated by holography, we explore higher derivative corrections to four-dimensional Anti-de Sitter (AdS) gravity. We point out that in such a theory the variational problem is generically not well-posed given only a boundary condition for the metric. However, when one evaluates the higher derivative terms perturbatively on a leading order Einstein solution, the equations of motion are always second order and therefore the variational problem indeed requires only a boundary condition for the metric. The equations of motion required to compute the spectrum around the corrected background are still generically higher order, with the additional boundary conditions being associated with new operators in the dual conformal field theory. We discuss which higher derivative curvature invariants are expected to arise in the four-dimensional action from a top-down perspective and compute the corrections to planar AdS black holes and to the spectrum around AdS in various cases. Requiring that the dual theory is unitary strongly constrains the higher derivative terms in the action, as the operators associated with the extra boundary conditions generically have complex conformal dimensions and non-positive norms.
description: 57 pages; v2 - references and comments added
title: Πολυκριτήριες μέθοδοι εκτίμησης του κινδύνου πτώχευσης επιχειρήσεων
Creators: name: Δημητράς Αυγουστίνος Ι.
Publisher: name: Technical University of Crete
Year: 1995

description: Μη διαθέσιμο
Datafication, Media and Democracy – Transformation of news work in datafied society
Creators: name: Ana, Milojevic
Publisher: name: Zenodo
Year: 2021
Subjects: media and democracy, audience datafication

description: The poster presentation of the research project Datafication, Media and Democracy – Transformation of news work in datafied society - DataMeDe, presenting the main problem addressed by the research, methods applied and preliminary findings.
Additional file 1 of Working from home during the COVID 19 pandemic: a longitudinal examination of employees’ sense of community and social support and impacts on self-rated health
Creators: name: Graham, Melissa
name: Lambert, Katrina A.
name: Weale, Victoria
name: Stuckey, Rwth
name: Oakman, Jodi
Publisher: name: figshare
Year: 2023
Subjects: subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1: Figure S1. Trajectories of work location over the three waves. Table S1. Model fit indices for GMM to determine trajectories of sense of community and social support.
Anchoring Bias in Online Voting
Creators: name: Yang, Zimo
name: Zhang, Zi-Ke
name: Zhou, Tao
Publisher: name: arXiv
Year: 2012
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Information Retrieval (cs.IR)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Voting online with explicit ratings could largely reflect people's preferences and objects' qualities, but ratings are always irrational, because they may be affected by many unpredictable factors like mood, weather, as well as other people's votes. By analyzing two real systems, this paper reveals a systematic bias embedding in the individual decision-making processes, namely people tend to give a low rating after a low rating, as well as a high rating following a high rating. This so-called \emph{anchoring bias} is validated via extensive comparisons with null models, and numerically speaking, the extent of bias decays with interval voting number in a logarithmic form. Our findings could be applied in the design of recommender systems and considered as important complementary materials to previous knowledge about anchoring effects on financial trades, performance judgements, auctions, and so on.
description: 5 pages, 4 tables, 5 figures
title: Μελέτη συστήματος κροκίδωσης και διήθησης εκροών βιολογικού καθαρισμού με χρήση προ-υδρολυμένων κροκιδωτικών
Creators: name: Βλάχος Χρήστος Α.
Publisher: name: Technical University of Crete
Year: 1995

description: Μη διαθέσιμο
Probing dynamics of Majorana fermions in quantum impurity systems
Creators: name: Mora, Christophe
name: Hur, Karyn Le
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the admittance of a metallic quantum RC circuit with a spinful single-channel lead or equally with two conducting spin-polarized channels, in which Majorana fermions play a crucial role in the charge dynamics. We address how the two-channel Kondo physics and its emergent Majoranas arise. The existence of a single unscreened Majorana mode results in non-Fermi-liquid features and we determine the universal crossover function describing the Fermi-liquid to non-Fermi-liquid region. Remarkably, the same universal form emerges both at weak transmission and large transmission. We find that the charge relaxation resistance strongly increases in the non-Fermi-liquid realm. Our findings can be measured using current technology assuming a large cavity.
description: 5 pages, 1 fig
title: Παρακολούθηση λειτουργίας συστημάτων ηλεκτροπαραγωγής με μεθοδολογίες τεχνητής νοημοσύνης
Creators: name: Δούνιας Γεώργιος.
Publisher: name: Technical University of Crete
Year: 1995

description:  Διάγνωση βλαβών και συστήματα ηλεκτροπαραγωγής -- 2. Η διαδικασία πρόσληψης εμπειρικής γνώσης -- 3. Μηχανική μάθηση -- 4. Διαγνωστικός μηχανισμός ασαφούς συλλογισμού
title: Βελτιστοποίηση της γεωμετρίας στροβίλου αξονικής ροής με χρήση εξελικτικών αλγόριθμων
Creators: name: Χριστόπουλος Βασίλης
Publisher: name: Technical University of Crete
Year: 2003

description:  Εισαγωγή -- 2. Μέθοδοι μονοκριτήριας βελτιστοποίησης -- 3. Πολυκριτήρια βελτιστοποίηση -- 4. Η μέθοδος S.E.A.D.O. -- 5. Μοντελοποίηση στροβίλου αξονικής ροής -- 6. Ανάπτυξη ΕΑ για την βελτιστοποίηση πολυκριτήριων προβλημάτων -- 7. Συμπεράσματα
The invasive Tradescantia zebrina does not inhibit germination of the native Hymenaea courbaril but does modulate its growth
Creators: name: Silva, Maria E. N.
name: N., José D. Ribeiro
name: Lion, Marília B.
name: Menezes, Rosemberg F.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Ecology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Plant Biology

description: Invasive plant species can modify ecosystem structure and function, potentially leading to the loss of native species, environmental and biotic homogenisation, changes in nutrient cycling, impairment of ecosystem services, and decrease in the rate of regeneration of plant recruits. We assessed the effects of the non-native and invasive vine Tradescantia zebrina on the germination and development of the native tree Hymenaea courbaril in north-eastern Brazil. We hypothesised that the invasive species would negatively impact the germination and development, and, via competition, the growth of the native species. We conducted a germination experiment for six months in seven forest patches. Seeds of H. courbaril were cultivated in four possible combinations of two treatments: under a cover with and without T. zebrina, and on soil that originated from places with and without T. zebrina present. Neither T. zebrina cover or soil affected the germination or biomass of H. courbaril during the experiment. H. courbaril seedlings were taller and had longer roots when cultivated in soil that originated from places with T. zebrina. T. zebrina presence alters soil properties in a way that triggers morphological responses in H. courbaril, which can be associated to a perceived competition context.
Fields and Laplacians on Quantum Geometries
Creators: name: Thürigen, Johannes
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In fundamentally discrete approaches to quantum gravity such as loop quantum gravity, spin-foam models, group field theories or Regge calculus observables are functions on discrete geometries. We present a bra-ket formalism of function spaces and discrete calculus on abstract simplicial complexes equipped with geometry and apply it to the mentioned theories of quantum gravity. In particular we focus on the quantum geometric Laplacian and discuss as an example the expectation value of the heat kernel trace from which the spectral dimension follows.
description: 3 pages, submitted to the Proceedings of the 13th Marcel Grossmann Meeting (MG13), Stockholm, July 1-7, 2012
title: Αποτελεσματικότητα ελληνικών τραπεζών
Creators: name: Πρωτοπαπαδάκη Ελένη
Publisher: name: Technical University of Crete
Year: 2004

description: φ. 1: Το χρηματοπιστωτικό σύστημα και τα τραπεζικά ιδρύματα -- Κεφ. 2: Το νέο περιβάλλον της ευρωπαϊκής και ο ρόλος που διαδραμάτισε στα ελληνικά τραπεζικά ιδρύματα -- Κεφ. 3: Μεθοδολογικές προσσεγγίσεις και ανασκόπηση ερευνών στην ανάλυση της αποτελεσματικότητας τραπεζών -- Κεφ. 4: Μεθοδολογία και εφαρμογή πολυκριτήριας ανάλυσης
title: API development for cooperative airborne-based sense and avoid in UAS
title: Ανάπτυξη API για εναέρια συνεργατική αντίληψη και αποφυγή συγκρούσεων σε μη-επανδρωμένα συστήματα τετρακοπτέρων
Creators: name: Αντωνιου Λεωνιδας
Publisher: name: Technical University of Crete
Year: 2016

description: The opening of the unmanned aircraft system (UAS) market to civil applications has expanded the research interest in the unmanned aviation field. Under a common airspace where multiple and various types of UAS should be airworthy, the use of advanced control for full autonomy is mandatory· conflicts between UAS are a safety hazard to their surrounding environment, including civilians.

A lot of research has been conducted in conflict (collision) detection and avoidance in mobile robots but there is little application in the UAS sector. This is because of the complexity of the surrounding environment, the non-segregated airspace, the variety in UAS, both from a software and hardware prospective, and the wide use of UAS in civil applications.

The purpose of this project is to extend the functionality of a famous open-source SDK for open-platform UAS, Dronekit, in the advanced control spectrum. The infrastructure for a decentralized solution for cooperative conflict detection has been developed, containing support for inter-UAS communication, prioritization and mission save/restore in a resource-conscious and developer-friendly API.

The software developed undergoes both laboratory and field testing for evaluation purposes. The results are thoroughly discussed and the advantages of the system, along with its limitations, are presented.
Radial Flows and Angular Momentum Conservation in Galactic Chemical Evolution
Creators: name: Bilitewski, Thomas
name: Schönrich, Ralph
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the effects of radial flows on Galactic chemical evolution. A simple analytic scheme is developed prescribing the coupling of infall from the intergalactic medium and radial flows within the disc based on angular momentum conservation. We show that model parameters are tightly constrained by the observed [Fe/H]-abundance gradient in the Galactic disc. By this comparison the average rotational velocity of the onfalling material can be constrained to 0.7 < v/V_c < 0.75, or respectively ~ 160 km/s when assuming a constant disc circular velocity of V_c = 220 km/s. We test the robustness of this value against the influence of other processes. For a very simple model of inside-out formation this value changes only by Δv/V_c ~ 0.1, i.e. ~ 20 km/s, and significantly less on more realistic scenarios, showing that inside-out formation does not alone explain the abundance gradient. Effects of other uncertain parameters, e.g. star formation history and star formation efficiency have very small impact. Other drivers of inflow beyond our explicit modelling are assessed by adding a fixed inflow across the whole disc. The churning amplitude only mildly affects the results mostly by slightly flattening the metallicity gradient in the inner disc. A new process causing radial gas flows due to the ejection of material by stars moving on non-circular orbits is studied and seems to contribute negligibly to the total flows. We further show that gaseous outer discs cannot be the main source feeding the persistent star formation in the inner regions by a direct inflow.
description: 18 pages, 21 figures. Accepted for publication in MNRAS
title: Development of coherent and incoherent light sources with computer control of their spectral emission for biomedical applications
Creators: name: Ρωσσος Χρηστος
Publisher: name: Technical University of Crete
Year: 2016

description: The subject of this Master thesis is the design, prototyping and technical evaluations of advanced light sources offering distinct advantages over the conventional one.
Conventional black-body or gas discharge light sources are still very popular, they suffer however from a long list of shortcomings including but not limited to: ramp-like spectral emission, heating, uncontrolled sparks (short-peaks) in their emission spectra, limited ability to control their intensity distribution along their emission wavelength range etc.
This thesis addresses the demand for alternative light sources, free from the above mentioned limitations.
To this end, two kinds of compact solid state light sources were developed based on the optical multiplexing of distinct, narrow band LED and LASER light sources.
In the first case an array of LEDs was developed with members covering the spectral range from ultraviolet to near infrared. The LEDs were coupled with the multiple ending of a custom made polifurcated fiber optic bundle, thus achieving an excellent multiplexing. Specially developed hardware controllers were employed for controlling the intensity distribution across the entire wavelength range of the multi-LED light sources. The intensity distribution could, under computer control, take the ‘flat’ spectral profile corresponding to an ‘absolute white’ light source. Alternatively, it could take the form of spectrum with peaks and deeps in wavelength ranges defined by the user.
The second development corresponds to a multiple wavelength laser source with the option of controlling the relative intensity of LASER lines. All LASER lines are multiplexed in a liquid light-guide for achieving beam homogenization. A major challenge that was faced when the multilaser source was used for imaging was the so-called ‘speckle’ effect. This effect introduced fixed random pattern noise effects in imaging applications due to the local interference of the coherent LASER Light. This issue was effectively solved with the employment of a vibrating diffuser interposed in the beam’s path. The vibrating diffuser destroyed partially the coherent nature of the laser beam, thus minimizing interference effects and reduce the speckle phenomena.
The developed light sources are currently used in a series of applications such as fluorescence microscopy, wavelength response calibrator, multispectral imaging, study of eye response to control optical stimuli etc.
Additional applications are currently on their development stage, while further improved designs are scheduled for the near future.
Friedrich Maier: Schicksal, Glück und Lebenssinn. Lateinische Glanzlichter der europäischen Literatur
Creators: name: Westphalen, Klaus
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Friedrich Maier: Schicksal, Glück und Lebenssinn. Lateinische Glanzlichter der europäischen Literatur. München: J. Lindauer, 2011, 208 S., zahlr., überwiegend farbige Abb. (ISBN 978- 3-87488-428-0).
description: Forum Classicum, Nr. 4 (2011): Forum Classicum
Additional file 1 of Overcoming barriers and enhancing facilitators to COVID-19 vaccination in the Hispanic community
Creators: name: Moore, Ramey
name: Rojo, Martha O.
name: Purvis, Rachel S.
name: Marin, Luis Paganelli
name: Yáñez, Judith
name: Reece, Sharon
name: Wells, Cheryl
name: Vaughn, Brittany
name: McElfish, Pearl A.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1: COVID-19 Vaccine Interview Guide. A semi-structured interview guide was developed collaboratively with community partners to ensure the questions were culturally relevant, informed by the community, and written in plain language. The interview guide was revised and translated into Spanish and then reviewed by two additional Spanish language translators. The interview guide included questions on barriers and facilitators of vaccination decisions.
The Hamiltonian Form of Topologically Massive Supergravity
Creators: name: Routh, Alasdair
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct a "Chern-Simons-like" action for N=1 Topologically Massive Supergravity from the Chern-Simons actions of N=1 Supergravity and Conformal Supergravity. We convert this action into Hamiltonian form and use this to demonstrate that the theory propagates a single massive (2, 3/2) supermultiplet.
description: 18 pages; added references
title: Design and implementation of the OPT-2 algorithm in recent technology FPGA logic
title: Σχεδίαση και υλοποίηση αλγορίθμων OPT-2 σε νέας γενιάς αναδιατασσόμενη λογική
Creators: name: Μαλανδρακης-Μιλλερ Γεωργιος
Publisher: name: Technical University of Crete
Year: 2016

description: The Traveling Salesman Problem (TSP) is one of the most well-known and thoroughly studied problems within the domain of combinatorial optimization. The number of its practical, real-life applications is sheer: Manufacturing, logistics, telecommunications, statistics, scheduling, and even psychology are some of them, to name a few. Since it is an NP-Hard problem, solving it to optimality requires an exponentially-increasing time as its size grows, thus rendering its exact solution prohibitive for large datasets or when time constitutes a crucial factor. This has ultimately led to the development of an abundance of heuristics, specifically designed to address this issue, providing orders of magnitude reduced running times at the cost of sub- or near-optimal results. One of the oldest and most recognized such heuristic is 2-OPT.

The aim of this thesis is the design and implementation of 2-OPT in recent technology reconfigurable logic (FPGA), through the utilization of both the newly-(re)emerged High Level Synthesis flow (HLS) and the classic HDL-based flow as well; the corresponding tools are part of the Xilinx Vivado Design Suite. Experimental results show that the implemented hardware architectures are capable of delivering speedups of up to nearly 10x (5x on average) for small to medium scale problem sizes. These speedups are obtained when comparing the performance of the aforementioned architectures against the highly optimized Concorde TSP software package running on a 3.4GHz Intel Core-i7 6700 CPU with 16GB RAM. The presented work originates from research conducted nearly a decade ago in the Microprocessor & Hardware Lab at the School of ECE, Technical University of Crete.
Hubertus R. Drobner: Augustinus von Hippo. Predigten zu Neujahr und Epiphanie (Sermones 196/A - 2047A)
Creators: name: Schmitz, Dietmar
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Hubertus R. Drobner: Augustinus von Hippo. Predigten zu Neujahr und Epiphanie (Sermones 196/A - 2047A). Einleitung, Text, Übersetzung und Anmerkungen. (Patrologia, Beiträge zum Studium der Kirchenväter XXII). Frankf./M. Berlin/Bern u.a.: Peter Lang Jahr???? EUR 89,80. (ISBN 978- 3-631-60383-3).
description: Forum Classicum, Nr. 1 (2012): Forum Classicum
Proper Motions of Young Stellar Outflows in the Mid-Infrared with Spitzer (IRAC). I. The NGC 1333 region
Creators: name: Raga, A. C.
name: Noriega-Crespo, A.
name: Carey, S. J.
name: Arce, H. G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We use two 4.5micron Spitzer (IRAC) maps of the NGC 1333 region taken over approx. 7 yr interval to determine proper motions of its associated outflows. This is a first, successful attempt at obtaining proper motions of stellars outflow from Spitzer observations. For the outflow formed by the Herbig-Haro objects HH7, 8 and 10, we find proper motions of approx. 9-13 km/s, which are consistent with previously determined optical proper motions of these objects. We determine proper motions for a total of 8 outflows, ranging from approx. 10 to 100 km/s. The derived proper motions show that out of these 8 outflows, 3 have tangential velocities less or equal to 20 km/s. This result shows that a large fraction of the observed outflows have low intrinsic velocities, and that the low proper motions are not merely a projection effect.
description: Accepted in the Astronomical Journal
title: Segmented video caching mechanisms for video on demand services
title: Δυναμικοί μηχανισμοί προσωρινής αποθήκευσης τμηματοποιημένης πληροφορίας βίντεο σε κρυφή μνήμη για παροχή κατ’ απαίτηση υπηρεσιών βίντεο
Creators: name: Αλεξιου Αριστειδης
Publisher: name: Technical University of Crete
Year: 2016

description: Η εκτεταμένη ανάπτυξη των δικτύων και η εύκολη πρόσβαση σε αυτά έχει οδηγήσει στη συμφόρηση και στην καθυστέρηση που υπόκεινται διάφορες εφαρμογές που απαιτούν την έγκαιρη μετάδοση δεδομένων. Μερικοί χρήστες παρακολουθούν online βίντεο με ταινίες, διαλέξεις, ποδοσφαιρικούς αγώνες κτλ. Οι συγκεκριμένες αιτήσεις απαιτούν τη μετάδοση δεδομένων από το δίκτυο χωρίς καθυστέρηση. Αν υπάρχει χρονική καθυστέρηση στη μεταφορά των δεδομένων ο χρήστης θα παρακολουθεί το βίντεο με συχνές παύσεις, πράγμα το οποίο είναι αρκετά ενοχλητικό. Για να μπορούν να εξυπηρετηθούν οι χρήστες οι οποίοι απαιτούν μετάδοση δεδομένων σε πραγματικό χρόνο έχουν ενσωματωθεί στο δίκτυο οι διακομιστές μεσολάβησης (proxy servers).
Η παρούσα διπλωματική εργασία προτείνει μηχανισμούς προσωρινής αποθήκευσης τμηματοποιημένης πληροφορίας βίντεο στην κρυφή μνήμη του διακομιστή μεσολάβησης για παροχή κατ’ απαίτηση υπηρεσιών βίντεο. Οι προτεινόμενοι μηχανισμοί στοχεύουν στην διατήρηση των δημοφιλών βίντεο στη κρυφή μνήμη. Οι μηχανισμοί εξετάζονται κάτω από την υπόθεση ότι οι χρήστες παρακολουθούν σειριακά ολόκληρα τα βίντεο. Για κάθε βίντεο ορίζεται μια μεταβλητή η οποία μας βοηθά να εκτιμήσουμε την δημοτικότητα του (caching value), με βάση την τιμή της οποίας παίρνονται αποφάσεις για την επιλογή των κατωφλίων διαχωρισμού ζήτησης των διαφόρων τμημάτων του βίντεο. Η επιλογή των κατάλληλων κατωφλίων διαχωρισμού για τους δύο προτεινόμενους μηχανισμούς είναι σημαντικό ζήτημα για την λειτουργία του συστήματος. Σε σχέση με προηγούμενη μελέτη κάτω από τις ίδιες συνθήκες και σύστημα, η μέθοδος που προτείνουμε πετυχαίνει σημαντική βελτίωση σε ότι αφορά τις παρακάτω μετρικές απόδοσης του συστήματος: (i) Byte-Hit Ratio και (ii) αριθμός τμημάτων που  αντικαθίστανται στην κρυφή μνήμη του συστήματος (Number of Segment Replacements), η τελευταία μετρική αντιστοιχεί σε overhead του συστήματος.