cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Μηχανική ανάλυση στοματικών μαλακών ιστών με μέθοδο πεπερασμένων στοιχείων
Creators: name: Τσαΐρα, Κατερίνα-Μαρίνα-Κριστέλ Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: στοματικοί μαλακοί ιστού
μοντέλο μηχανικής συμπεριφοράς
χρήση μεθόδου πεπερασμένων στοιχείων σε μαλακούς ιστούς
oral soft tissues
model of mechanical behavior of sot oral tissues
finite element analysis on soft tissues

description: Η παρούσα διπλωματική αποτελεί μια προσπάθεια ανεύρεσης των πλαισίων στα οποία κινείται η μηχανική συμπεριφορά των μαλακών στοματικών ιστών κατά τη συμπίεση κάτω από κινητές αποκαταστάσεις. Χρησιμοποιήθηκαν ψηφιακά δεδομένα από ακτινογραφία κωνικής δέσμης νωδού ασθενούς, από τα οποία δημιουργήθηκαν 2 τρισδιάστατες γεωμετρίες . Μία των μαλακών ιστών σε ηρεμία και μία σε συμπίεση. Από τα ακτινογραφικά δεδομένα αντλήθηκαν πληροφορίες σχετικά με το εύρος συμπίεσης των μαλακών ιστών και οι γεωμετρίες που προέκυψαν τέθηκαν σε λογισμικό ανάλυσης με πεπερασμένα στοιχεία (ANSYS 14.5) όπου πραγματοποιήθηκε εικονική παραμόρφωση. Η ανάλυση πραγματοποιήθηκε με βάση το γραμμικό μοντέλο. Τα αποτελέσματα της παρούσας διπλωματικής μας δείχνουν πώς το εύρος παραμόρφωσης των μαλακών ιστών είναι της τάξεως του 1 mm, ενώ το ζεύγος μέτρου ελαστικότητας και αναλογίας Poisson που χαρακτηρίζει τη γραμμική παραμόρφωση τους είναι 7.2 MPa και 0.49.
description: This thesis contributes in finding the limits of oral soft tissues mechanical behavior when compressed under removable prosthesis. Cone beam digital data were used from edentulous patient, in order to produce 3d geometries. The first geometry consisted of uncompressed soft tissues and the second compressed soft tissues. Firstly, information was obtained about soft tissue compressibility. Then FEM analysis was performed using ANSYS 14.5, programming virtual compression. The model used was linear. Results show that soft tissue compression spreads under 1mm, while the best young modulus and poisson ratio values for our patient’s soft tissues compression were 7,2 MPa and 0.49.
Generating patient insights in chronic obstructive pulmonary disease (COPD) with social media listening (SML) study
Creators: name: Gutzwiller, Florian S.
name: Jean-Bernard Gruenberger
name: Kaur, Vinay Preet
name: Purnima Pathak
name: Cook, Nigel S.
Publisher: name: F1000 Research Limited
Year: 2019

description: Background: Online forums are commonly used by patients to share disease information, grievances and for seeking mutual support. However, social media analysis has seldom been applied to evaluate patients’ perspective on COPD.

Aim: To use social media data for understanding the patients’ perspective on COPD with respect to symptoms, unmet needs, and impact on their health-related quality of life (HRQoL).

Methods: A social media data aggregator tool was used to download relevant records posted between July 2016 and Jan 2018 using predefined keywords. Data sources were forums, blogs, Twitter and newswires. Post data anonymization, text algorithms and manual curation techniques were used to analyse and describe the impact of COPD symptoms on patient’s HRQoL.

Results: 695 unique patient records were considered for the analysis. Patients’ discussions were primarily on symptoms, diagnosis, treatments and HRQoL. The most commonly reported symptoms were cough (25%), mucous (23%), and shortness of breath (23%). These symptoms impacted patients’ HRQoL by affecting their sleep, mobility, work, inducing panic attacks and emotional wellbeing.

Conclusions: Social media sourced data (unfiltered, uninfluenced) can generate useful insights on patients’ experiences with COPD and identify unmet needs. This can inform decision-making in early drug development and guide discussions with regulatory bodies.
Nonuniversal interstellar density spectra probed by pulsars
Creators: name: Xu, Siyao
name: Zhang, Bing
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Galactic interstellar turbulence affects the density distribution and star formation. We introduce a new method of measuring interstellar turbulent density spectra by using the dispersion measures (DMs) of a large sample of pulsars. Without the need of invoking multiple tracers, we obtain nonuniversal density spectra in the multi-phase interstellar medium over different ranges of length scales. By comparing the analytical structure function of DMs with the observationally measured one in different areas of sky, we find a shallow density spectrum arising from the supersonic turbulence in cold interstellar phases, and a Kolmogorov-like density spectrum in the diffuse warm ionized medium (WIM). Both spectra extend up to hundreds of pc. On larger scales, we for the first time identify a steep density spectrum in the diffuse WIM extending up to several kpc. Our results show that the DMs of pulsars can provide unique new information on the interstellar turbulence.
description: 9 pages, 5 figures, accepted for publication in ApJ
Turbulent swirling combustion of premixed natural gas and air
Creators: name: Zhang, Dehong
Publisher: name: University of British Columbia
Year: 2009

description: Constant-volume combustion of a stoichiometric homogenous mixture of natural gas and air with global rotational motion (swirl) in a short cylindrical chamber has been studied experimentally and simulated numerically. Swirl was generated by a rotating disc in the combustion chamber with variable intensity. Turbulence intensity was varied by changing the swirl level as well as changing the size of roughness on the rotating disc. Combustion was initiated at the centre of the cylindrical combustion chamber. Combustion pressure signals were used to determine the combustion rate at different swirl levels. High-speed laser schlieren photography was used to obtain schlieren images of flame kernel development at different swirling levels. Combustion pressure measurements showed that: (i) at given turbulence intensity, there is a swirl level limit, below which swirl enhances the burning rate; above which swirl reduces the burning rate; (ii) the turbulence intensity has greater effect on combustion duration at high swirl than at low swirl; (iii) increased swirl leads to increased heat transfer rate; at the intermediate swirl, the total heat loss during combustion was the minimum. High-speed laser schlieren pictures showed some evidence of small flame kernel elongation along the rotating axis of swirl. Multi-dimensional numerical modeling, which was based on the KIVA II code, was applied to simulate combustion. A combustion model with a two-step chemical reaction scheme, in which the fuel was treated as a mixture of a number of simple chemical components, was developed to evaluate the burning rate with, and without, swirl. The numerical results show that (i) at the zero, low, and intermediate swirl levels, the predicted combustion rates were closely consistent with the measured combustion rates; at the high swirl level, the combustion rates were over predicted; (ii) the numerical simulation is consistent with the observed effect of swirl on the flame kernel development.
Recent Developments in Gene Editing Technologies: A Comprehensive Review of CRISPR applications in Biotechnology
Creators: name: Bairu Himalayeshwari
Publisher: name: Institute for Interdisciplinary and Venture Publication
Year: 2025
Subjects: CRISPR
Gene editing
CRISPR-Cas systems
Biotechnology
CRISPR/Cas9
DNA

description: This review article offers a thorough summary of recent advancements related to CRISPR technology that investigates its mechanisms, principles, and potential applications in biotechnology. The paper critically discusses the transformative potential of CRISPR in relevant domains such as biomedical studies, agriculture, industry, and environmental science. Even with transformative potential, CRISPR is limited by off-target effects, requirements for PAMs and efficient delivery mechanisms. The literature reviewed indicates that although the potential for reliable therapy for treating genetic conditions and enhancing stress resilience in plants is promising, there is a lack of standardized practices for assessing off-target activity and gene editing safety. Compounding surveillance, there is relatively little knowledge of the long-term implications of CRISPR usages on different ecosystems and human health. The review calls for further research into new delivery systems to improve both the efficiency and specificity of biotechnological research and practice associated with CRISPR technologies. So, the study suggests subsequent research efforts go towards creating robust protocols for the assessment of off-target effects and enhancing delivery methods. Analyses of new CRISPR technologies like base editing and prime editing should be done to establish their strengths. Ethical implications of germline editing should also be addressed to allow for the use of CRISPR technology in a responsible manner. By integrating existing literature and laying out key areas for future study this research hopes to contribute to the ongoing debate concerning CRISPR technology and its relevance to biotechnology
Identification of skill in an online game: The case of Fantasy Premier League
Creators: name: O'Brien, Joseph D.
name: Gleeson, James P.
name: O'Sullivan, David J. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: In all competitions where results are based upon an individual's performance the question of whether the outcome is a consequence of skill or luck arises. We explore this question through an analysis of a large dataset of approximately one million contestants playing Fantasy Premier League, an online fantasy sport where managers choose players from the English football (soccer) league. We show that managers' ranks over multiple seasons are correlated and we analyse the actions taken by managers to increase their likelihood of success. The prime factors in determining a manager's success are found to be long-term planning and consistently good decision-making in the face of the noisy contests upon which this game is based. Similarities between managers' decisions over time that result in the emergence of 'template' teams, suggesting a form of herding dynamics taking place within the game, are also observed. Taken together, these findings indicate common strategic considerations and consensus among successful managers on crucial decision points over an extended temporal period.
description: Main text - 11 pages, 7 figures; Supplementary material - 17 pages, 11 figures, 10 tables
Spontaneous spatial order in two-dimensional ferromagnetic spin-orbit coupled uniform spin-1 condensate solitons
Creators: name: Adhikari, S. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We demonstrate spontaneous spatial order in stripe and super-lattice solitons in a Rashba spin-orbit (SO) coupled spin-1 uniform quasi-two-dimensional (quasi-2D) ferromagnetic Bose-Einstein condensate. For weak SO coupling, the solitons are of the $(- 1,0,+ 1)$ or $(0,+ 1,+ 2)$ type with intrinsic vorticity, where the numbers in the parentheses denote angular momentum in spin components $F_z=+1,0,-1$, respectively. For intermediate SO coupling, three types of solitons are found: (a) circularly-asymmetric solitons, (b) circularly-symmetric $(- 1,0,+ 1)$- and (c) $(0,+ 1,+ 2)$-type multi-ring solitons maintaining the above-mentioned vortices in respective components. For large SO coupling, quasi-degenerate stripe and super-lattice solitons are found in addition to the circularly-asymmetric solitons. A super-lattice soliton forms a 2D square lattice structure in the total density as in a super-solid; in component densities it may have either (i) a 1D stripe pattern or (ii) a 2D square lattice structure.
description: arXiv admin note: text overlap with arXiv:2012.00872
"El Mito del Day Trading Rentable: ¿Qué Separan a los Ganadores de los Perdedores?"
Creators: name: Gallegos-Erazo, Franklin
Publisher: name: TraderExpert
Year: 2024
Subjects: Especulación
Economía del Comportamiento
Previsión Financiera

description: El estudio aborda la capacidad limitada de los traders diarios para obtener ganancias consistentes en mercados financieros altamente volátiles. A pesar del acceso a plataformas avanzadas de trading y a información en tiempo real, la mayoría de los traders especulativos experimentan pérdidas significativas. El objetivo es describir los factores que diferencian a los pocos traders exitosos de la mayoría que fracasa, con un enfoque en la gestión del riesgo, el control emocional y las estrategias empleadas. Se analizaron estudio que evidencian datos de traders en la Bolsa de Taiwán y otros mercados, revelando que menos del 1% de los operadores logra ser consistentemente rentable, mientras que el 80% pierde dinero, incluso antes de contabilizar los costos de transacción. Los resultados muestran que los traders exitosos tienden a mantener una estrategia bien definida y a gestionar el riesgo de manera estricta, mientras que los traders menos experimentados, a menudo influenciados por marketing agresivo, tienen expectativas poco realistas y sufren pérdidas recurrentes. El estudio concluye que el éxito en el day trading no solo depende de habilidades técnicas, sino de la disciplina, el control emocional y una gestión efectiva del riesgo.
Διερεύνηση του Κόστους του αρδευτικού νερού στην Περιφέρεια της Δυτικής Μακεδονίας
Creators: name: Κολέσκα, Σωτηρία-Ζωή
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: αρδευτικό νερό
Περιφέρεια Δυτικής Μακεδονίας
τιμολόγηση νερού
agricultural water
region of Western Macedonia
water pricing

description: Στην παρούσα μεταπτυχιακή εργασία αναλύεται το μείζον πρόβλημα της βιώσιμης διαχείρισης των υδατικών πόρων, της ποιοτικής και ποσοτικής προστασίας αυτών που ορίζει η Οδηγία- Πλαίσιο 2000/60/ΕΚ για τα ύδατα, της τιμολόγησης του νερού σε διάφορες χώρες του ΟΟΣΑ καθώς και της σημασίας του νερού ως κοινωνικού και οικονομικού αγαθού. Επίσης, εξετάζονται οι προσπάθειες και τα αποτελέσματα της ιδιωτικοποίησης του νερού, αναλύονται οι μέθοδοι τιμολόγησης της αξίας αυτού και προσδιορίζονται οι συνιστώσες της οικονομικής αξίας του. Στην Περιφέρεια της Δυτικής Μακεδονίας, η οποία αποτελεί την περιοχή μελέτης της παρούσας εργασίας υπάρχουν 44 Τ.Ο.Ε.Β. Σε μια προσπάθεια καταγραφής της υφιστάμενης κατάστασης όσον αφορά στο κόστος του αρδευτικού νερού στην συγκεκριμένη περιοχή, συντάχθηκε ερωτηματολόγιο και δόθηκε σε όλους τους Τ.Ο.Ε.Β., εκ των οποίων ανταποκρίθηκαν στο κάλεσμα της έρευνας μόνο οι 30 και βοήθησαν στην ολοκλήρωση αυτής με τη διάθεση στοιχείων, που είχαν στη διάθεση τους.
description: The present master thesis analyzes: the major challenge of water resources sustainable management, by their quality and quantity protection, with the aid of the Directive 2000/60/EC; water pricing methods in several OECD countries; and the importance of water as a social and economic asset. It also examines water privatization efforts and results, by analyzing water pricing methods and by identifying several components of the economic value of water. In the Region of Western Macedonia, which is the study area of this postgraduate thesis, there are 44 L.O.L.R. In an effort to document the current situation related to the cost of irrigation water in this region, a questionnaire survey was organized. 30 L.O.L.R. out of the total 44 responded to the survey, providing with available data.
Analytical and experimental studies of wing tip vortices
Creators: name: Duan, Shizhong
Publisher: name: University of British Columbia
Year: 2009

description: Wing tip vortices, and their relationship to wing tip geometry and wing total drag, are investigated here both analytically and experimentally. The purpose of the analysis is to answer the basic question — what are the effects of wing drag on tip vortex structure? The purpose of the experiments is to determine the effect of wing tip geometry on wing tip vortices (tip vortex cavitation) and wing drag (vortex induced drag). In the analytical work, a new method has been developed for wing tip vortices. This approach is referred to as the “quasi-similarity” method. This new method combines a polynomial solution with a similarity variable technique. A non-linear analytical tip vortex model is achieved for the first time. The first order (linear) velocity components and pressure of the polynomial solution for the new model can be expressed in complete function form. Higher order (non-linear) velocity components and pressure can be obtained analytically or numerically. The most important feature of this new tip vortex model is that the predicted wing drag due to such a single vortex is finite. To the author’s knowledge, no other vortex model has this property. At distances fairly far downstream of the wing, tip vortex structure is found to be an explicit function of wing total drag, vortex circulation, freestream velocity, downstream distance and fluid properties. It is verified that the first order tangential velocity component and pressure of the tip vortex model are exactly the same as that of the linear wing tip vortex model proposed by Batchelor (1964). The decay of the axial and tangential velocity components predicted by this theory compare well with experimental measurements. In the experimental work, a novel ducted tip device was tested in a wind tunnel and a water tunnel. The ducted tip consists of a hollowed duct attached to the tip of a rectangular untwisted wing. This novel tip device was found to improve the Lift/Drag ratio by up to 6% at elevated angles of attack compared with a conventional round tip configuration with the same span. The wing tip vortex cavitation was substantially delayed by the ducted tip device. In view of its superior cavitation characteristics and aerodynamic performance, the ducted tip has potential application to marine propellers. The ducted tip is effective because it redistributes the shed vorticity in the transverse plane (Trefftz plane) behind the wing. The shed vorticity is distributed along the wing and duct trailing edge for the ducted tip configuration, rather than solely along the wing trailing edge, which would be the case for a conventional wing tip configuration.
Role of Glueballs in Non-Perturbative Quark-Gluon Plasma
Creators: name: Kochelev, Nikolai
name: Min, Dong-Pil
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Discussed is how non-perturbative properties of quark gluon plasma, recently discovered in RHIC experiment, can be related to the change of properties of scalar and pseudoscalar glueballs. We set up a model with the Cornwall-Soni's glueball-gluon interaction, which shows that the pseudoscalar glueball becomes massless above the critical temperature of deconfinement phase transition. This change of properties gives rise to the change of sign of the gluon condensate at $T > T_c$. We discuss the other physical consequences resulting from the drastic change of the pseudoscalar glueball mass above the critical temperature.
description: 8 pages, 3 figures
"The Myth of Profitable Day Trading: What Separates the Winners from the Losers?"
Creators: name: Gallegos-Erazo, Franklin
Publisher: name: TraderExpert
Year: 2024
Subjects: Especulación
Economía del Comportamiento
Previsión Financiera

description: The study addresses the limited ability of day traders to achieve consistent profits in highly volatile financial markets. Despite access to advanced trading platforms and real-time information, most speculative traders experience significant losses. The objective is to describe the factors that distinguish the few successful traders from those who fail, focusing on risk management, emotional control, and the strategies employed. Studies analyzing data from traders on the Taiwan Stock Exchange and other markets reveal that less than 1% of traders are consistently profitable. In comparison, 80% lose money before accounting for transaction costs. The results show that successful traders maintain a well-defined strategy and manage risk strictly, whereas less experienced traders, often influenced by aggressive marketing, have unrealistic expectations and suffer recurring losses. The study concludes that success in day trading depends on technical skills, discipline, emotional control, and effective risk management.
Theory of the proximity effect in junctions with unconventional superconductors
Creators: name: Tanaka, Y.
name: Golubov, A. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present a general theory of the proximity effect in junctions between diffusive normal metals (DN) and unconventional superconductors in the framework of the quasiclassical Green's function formalism. Various possible symmetry classes in a superconductor are considered which are consistent with the Pauli principle: even-frequency spin-singlet even-parity (ESE) state, even-frequency spin-triplet odd-parity (ETO) state, odd-frequency spin-triplet even-parity (OTE) state and odd-frequency spin-singlet odd-parity (OSO) state. For each of the above four cases symmetry and spectral properties of the induced pair amplitude in the DN are determined. It is shown that the pair amplitude in a DN belongs respectively to an ESE, OTE, OTE and ESE pairing state.
description: 5 pages with one figure
Atmospheric Rossiter-McLaughlin effect and transmission spectroscopy of WASP-121b with ESPRESSO
Creators: name: Borsa, F.
name: Allart, R.
name: Casasayas-Barris, N.
name: Tabernero, H.
name: Osorio, M. R. Zapatero
name: Cristiani, S.
name: Pepe, F.
name: Rebolo, R.
name: Santos, N. C.
name: Adibekyan, V.
name: Bourrier, V.
name: Demangeon, O. D. S.
name: Ehrenreich, D.
name: Pallé, E.
name: Sousa, S.
name: Lillo-Box, J.
name: Lovis, C.
name: Micela, G.
name: Oshagh, M.
name: Poretti, E.
name: Sozzetti, A.
name: Prieto, C. Allende
name: Alibert, Y.
name: Amate, M.
name: Benz, W.
name: Bouchy, F.
name: Cabral, A.
name: Dekker, H.
name: D'Odorico, V.
name: Di Marcantonio, P.
name: Figueira, P.
name: Santos, R. Genova
name: Hernández, J. I. González
name: Curto, G. Lo
name: Manescau, A.
name: Martins, C. J. A. P.
name: Mégevand, D.
name: Mehner, A.
name: Molaro, P.
name: Nunes, N.
name: Riva, M.
name: Mascareño, A. Suárez
name: Udry, S.
name: Zerbi, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: WASP-121b is one of the most studied Ultra-hot Jupiters: many recent analyses of its atmosphere report interesting features at different wavelength ranges. In this paper we analyze one transit of WASP-121b acquired with the high-resolution spectrograph ESPRESSO at VLT in 1-telescope mode, and one partial transit taken during the commissioning of the instrument in 4-telescope mode. We investigate the anomalous in-transit radial velocity curve and study the transmission spectrum of the planet. By analysing the in-transit radial velocities we were able to infer the presence of the atmospheric Rossiter-McLaughlin effect. We measured the height of the planetary atmospheric layer that correlates with the stellar mask (mainly Fe) to be 1.052$\pm$0.015 Rp and we also confirmed the blueshift of the planetary atmosphere. By examining the planetary absorption signal on the stellar cross-correlation functions we confirmed the presence of a temporal variation of its blueshift during transit, which could be investigated spectrum-by-spectrum. We detected significant absorption in the transmission spectrum for Na, H, K, Li, CaII, Mg, and we certified their planetary nature by using the 2D tomographic technique. Particularly remarkable is the detection of Li, with a line contrast of $\sim$0.2% detected at the 6$σ$ level. With the cross-correlation technique we confirmed the presence of FeI, FeII, CrI and VI. H$α$ and CaII are present up to very high altitudes in the atmosphere ($\sim$1.44 Rp and $\sim$2 Rp, respectively), and also extend beyond the transit-equivalent Roche lobe radius of the planet. These layers of the atmosphere have a large line broadening that is not compatible with being caused by the tidally-locked rotation of the planet alone, and could arise from vertical winds or high-altitude jets in the evaporating atmosphere.
description: 15 pages, 19 figures. Accepted for publication in A&A
General relativistic galvano-gravitomagnetic effect in current carrying conductors
Creators: name: Ahmedov, B. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The analogy between general relativity and electromagnetism suggests that there is a galvano-gravitomagnetic effect, which is the gravitational analog of the Hall effect. This new effect takes place when a current carrying conductor is placed in a gravitomagnetic field and the conduction electrons moving inside the conductor are deflected transversally with respect to the current flow. In connection with this galvano-gravitomagnetic effect, we explore the possibility of using current carrying conductors for detecting the gravitomagnetic field of the Earth.
description: 10 pages
Η χρήση του φόβου ως εργαλείου πολιτική κυριαρχίας. Η περίπτωση της Ελλάδας 2010-2015
Creators: name: Δημούδη, Μαρίνα Αγγελου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Πολιτικός φόβος
Έκκληση φόβου
Χειραγώγηση
Political fear
Fear appeal
Manipulation

description: Το θέμα της διπλωματικής είναι «Η χρήση του φόβου ως εργαλείου πολιτικής κυριαρχίας. Η περίπτωση της Ελλάδας 2010-2015». Σκοπός της διατριβής ήταν να μελετηθεί η έκκληση φόβου και ο τρόπος με τον οποίο ο φόβος μετατρέπεται σε εργαλείο χειραγώγησης και αν επηρεάζει τις πολιτικές προτιμήσεις. Εξετάστηκε, επίσης η αρνητική πολιτική διαφήμιση και αν η έκθεση σ’ αυτή επηρεάζει την εκλογική συμπεριφορά. Αντικείμενο της έρευνας αποτέλεσε η περίπτωση της Ελλάδας από το 2010 έως το 2015. Για το σκοπό αυτό μελετήθηκαν οι προεκλογικές καμπάνιες των πολιτικών κομμάτων για τη χρήση αρνητικής πολιτικής διαφήμισης. Έπειτα, πραγματοποίησα ποιοτική έρευνα με την βοήθεια εις βάθος, δομημένων συνεντεύξεων, που είχε ως στόχο τη διερεύνηση, την περιγραφή και την αλληλεπίδραση της σχέσης του φόβου ως πολιτικού εργαλείου. Μέσα από την ερευνητική διαδικασία καταγράφηκαν μεταξύ άλλων οι αντιλήψεις και τα συναισθήματα των ερωτώμενων για το πολιτικό φόβο, για το αν ο φόβος επηρεάζει τις πολιτικές προτιμήσεις και τέλος για το επίπεδο της επικοινωνιακής εκστρατείας των κομμάτων κατά τις Βουλευτικές εκλογές της 6ης Μαΐου 2012, 17ης Ιουνίου 2012 και 25ης Ιανουαρίου 2015 και την επίδραση τους στην εκλογική τους συμπεριφορά.
description: The theme of the thesis is «The use of fear as a tool in the political arena. The case of Greece in 2010-2015». The aim of present thesis was to study the fear appeal and the way in which fear turns into manipulation tool and if it affects political preferences. Furthermore I was study the negative political campaigning and the effects of the exposure in political behavior of the electorate. Research of this study was the case of Greece from 2010 to 2015. For this purpose, they studied the election campaigns of political parties for the use of negative political advertising. Then I carried out qualitative research with the help of in-depth, structured interviews, which aimed to explore, describe and interaction relationship of fear as a political tool. Through the research process were recorded including the perceptions and feelings of the respondents on the political fear, whether the fear affects political preferences and finally on the communication campaign of the political parties during the parliamentary elections of May 6 2012, June 17 2012 and January 25, 2015 and their impact on electoral behavior.
Metalorganic chemical-vapor deposition of high-reflectance III-nitride distributed Bragg reflectors on Si substrates
Creators: name: Mastro, M. A.
name: Holm, R. T.
name: Bassim, N. D.
name: Gaskill, D. K.
name: Culbertson, J. C.
name: Fatemi, M.
name: Eddy, C. R.
name: Henry, R. L.
name: Twigg, M. E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: High-reflectance group III-nitride distributed Bragg reflectors (DBRs) were deposited by MOCVD on Si (111) substrates. A reflectance greater than 96% was demonstrated for the first time for an AlN/GaN DBR with a stop-band centered in the blue-green range of the visible spectrum. Crack-free GaN cap layers were grown on the DBR structures to demonstrate the opportunity to build III-nitride optoelectronic devices in this material. The DBR structure was under significant strain due to growth on a mismatched substrate although the GaN cap layer was shown to be strain free.
Poetik der Ausgrenzung: zur Konturierung von Empfindung und Vernunft bei Christian Fürchtegott Gellert
Creators: name: Kramer, Olaf
Publisher: name: Universität Tübingen
Year: 2016
Subjects: subject: Literaturwissenschaft , Rhetorik
subject: 800

description: Zweitveröffentlichung
Research Protocol for Analyzing Tweets Using Topic Modeling and ChatGPT: What We Can Learn About Teachers and Topics During COVID-19 Pandemic-Related School Closures
Creators: name: N., N.
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 460208
subject: Natural language processing
classificationCode: 399999
subject: Other education not elsewhere classified

description: Research Protocol for the conference paper "Analyzing Tweets Using Topic Modeling and ChatGPT: What We Can Learn About Teachers and Topics During COVID-19 Pandemic-Related School Closures"
Ohm's Law in General Relativity and Coriolis Force Effects in Rotating Conductors
Creators: name: Ahmedov, B. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It has been shown that a magnetic field proportional to angular velocity of rotation $ω$ arises around a rotating conductor with the radial gradient of temperature $\nabla_r T$. However, the theoretical value of the proportionality coefficient $10^{-17} {\rm cm}^{5/2}\cdot {\rm g}^{1/2}\cdot {\rm deg}^{-1}$ does not coincide with the experimental one $10^{-8} {\rm cm}^{5/2}\cdot {\rm g}^{1/2}\cdot {\rm deg}^{-1}$ [1]. At least two additional mechanisms act to produce an observable magnetic field in the experiment [1]. First, the fact that the rotation of the conductor is slowed down and second, the nonstationarity of the temperature gradient during the measurements contribute to the vertical magnetic field. The value of the magnetic flux arising from the azimuthal current induced by the ``Coriolis force'' effect on the thermoelectric radial current, is in good agreement with the experimental data [1].
description: 5 pages
Conserved Biochemical Defences Underpin Host Responses to Oomycete Infection in an Early Divergent Land Plant Lineage
Creators: name: Carella, Philip
name: Gogleva, Anna
name: Hoey, David
name: Bridgen, Anthony
name: Stolze, Sara
name: Nakagami, Hirofumi
name: Schornack, Sebastian
Publisher: name: Zenodo
Year: 2019
Subjects: Plant-microbe interactions
Plant defense
Plant biology
Metabolites
red

description: While host responses to microbial colonization are extensively explored in evolutionarily young land plant lineages like angiosperms, we know relatively little about plant-pathogen interactions in earlier diverging land plants. We studied the response of the early divergent liverwort Marchantia polymorpha to infection with the oomycete pathogen Phytophthora palmivora. We uncovered a robust response to oomycete colonization in Marchantia that consists of conserved land plant gene families. Macroevolutionary comparisons of host infection responses in Marchantia and the angiosperm Nicotiana benthamiana revealed a shared set of orthologous microbe-responsive genes that include members of the phenylpropanoid pathway. The Marchantia transcription factor MpMyb14 activates the phenylpropanoid (flavonoid) biosynthesis during oomycete infection. MpMyb14 mediates the accumulation of anthocyanin-like pigments and enhanced resistance to infection. The Marchantia response to oomycete infection displays evolutionarily conserved features indicative of an ancestral pathogen deterrence strategy centered on phenylpropanoid-mediated biochemical defenses. The full manuscript can be found here: Carella et al. (2019), Current Biology, https://doi.org/10.1016/j.cub.2019.05.078
A frictionless microswimmer
Creators: name: Leshansky, Alexander M.
name: Kenneth, Oded
name: Gat, Omri
name: Avron, Joseph E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We investigate the self-locomotion of an elongated microswimmer by virtue of the unidirectional tangential surface treadmilling. We show that the propulsion could be almost frictionless, as the microswimmer is propelled forward with the speed of the backward surface motion, i.e. it moves throughout an almost quiescent fluid. We investigate this swimming technique using the special spheroidal coordinates and also find an explicit closed-form optimal solution for a two-dimensional treadmiler via complex-variable techniques.
description: 6 pages, 4 figures
Functional analysis and single cell characterization of human fetal ventral midbrain in 2D and 3D cultures
Creators: name: Birtele, Marcella
name: Fiorenzano, Alessandro
name: Sharma, Yogita
name: Nelander, Jenny
name: Parmar, Malin
Publisher: name: Zenodo
Year: 2019
Subjects: human ventral midbrain
single cell sequencing
organoids
2D
3D
HUman fetal tissue

description: Parkinson disease (PD) is characterized by a loss of dopaminergic neurons in the substantia nigra pars compacta (SNpc). The selective loss of this cell population makes PD a good candidate for cell-based therapies. Clinical trials using cells derived from human fetal ventral midbrain (hVM) have shown that dopamine release could be restored to normal levels and in some PD patients produced substantial long-term clinical improvement. The ethical issues related to the use of human fetal material as well as the low number of hVM tissue available have limited the spread of this approach and have lead researchers to find new sources of cells such as human embryonic stem cells (hESCs) and pluripotent stem cells (IPCs). This study was designed to provide a detailed molecular and functional of the fetal VM tissue in order to give a deeper understanding of its composition and characteristics. The characterization is based on the comparison of standard culture conditions (2D) versus organoids of hVM (3D). We used unbiased single cell RNA sequencing to transcriptionally compare fetal VM tissue in 2D and 3D conditions together with a functional analysis performed using whole cell patch clamp technique. Our analysis determined the molecular and functional properties of the tissue that originates dopaminergic neurons and also confirmed important differences between the culture conditions as well as it . The data can be used for quality assessment of new cell sources and provide new molecular targets for improved subtype specificity during stem cell differentiation.
Research Protocol for Analyzing Tweets Using Topic Modeling and ChatGPT: The #twlz Teacher Community Before and During the First and Second COVID-19 Pandemic-Related School Closures
Creators: name: N., N.
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 460208
subject: Natural language processing
classificationCode: 399999
subject: Other education not elsewhere classified

description: Research Protocol for the conference paper "Analyzing Tweets Using Topic Modeling and ChatGPT: The #twlz Teacher Community Before and During the First and Second COVID-19 Pandemic-Related School Closures"
Stellar chemical tagging using phylogenetic trees
Creators: name: Čotar, Klemen
Publisher: name: Zenodo
Year: 2017
Subjects: clusters
chemical tagging
phylogeny

description: The GALactic Archaeology with HERMES (GALAH) spectroscopic survey aims to provide stellar spectra for 1 million stars in four different wavelength intervals. They are selected in a way that it should be possible to obtain more than 20 different chemical abundances per star. Chemical composition of the stars can be used to find (tag) members of long dissipated stellar clusters (De Silva et al. 2015, MNRAS, 449, 2604). Our method uses abundances of 13 elements (determined by Cannon (Ness et al. 2015, ApJ, 808, 1) method) to asses the similarity in chemical composition of stars. The similarity information is then used to construct a phylogenetic tree that gives us a visual representation of similarity in composition between individual stars. The tree is then traversed in a direction from tips to the root of the tree to further analyze kinematic relations between stars with similar chemical composition.
Truncated first moment of the parton distribution - a modified approach
Creators: name: Kotlorz, D.
name: Kotlorz, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive the LO DGLAP evolution equation for the full Mellin moments of the truncated at $x_0$ first moment of the nonsinglet parton distribution. This "moment of moment" approach allows to determine the small-$x_0$ behaviour of the truncated first moment. We compare our predictions to results obtained from $x-$space solutions for parton distributions with use of the Chebyshev polynomial method and to solutions of the evolution equations for the truncated moments proposed by other authors. The comparison is performed for different input parametrisations for $10^{-5}\leq x_0\leq 0.1$ and $1\leq Q^2\leq 100$ ${\rm GeV}^2$. We give an example of application to the determination of the contribution to the Bjorken Sum Rule.
description: 12 pages, 8 figures, the improved version to appear in EPJC
Substructures in the Disk-Forming Region of the Class 0 Low-Mass Protostellar Source IRAS 16293-2422 Source A on a 10 au Scale
Creators: name: Oya, Yoko
name: Yamamoto, Satoshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have observed the Class 0 protostellar source IRAS 16293-2422 A in the C17O and H2CS lines as well as the 1.3 mm dust continuum with the Atacama Large Millimeter/submillimeter Array at an angular resolution of ~0."1 (14 au). The continuum emission of the binary component, Source A, reveals the substructure consisting of 5 intensity peaks within 100 au from the protostar. The C17O emission mainly traces the circummultiple structure on a 300 au scale centered at the intensity centroid of the continuum, while it is very weak within the radius of 50 au from the centroid. The H2CS emission, in contrast, traces the rotating disk structure around one of the continuum peaks (A1). Thus, it seems that the rotation centroid of the circummultiple structure is slightly different from that of the disk around A1. We derive the rotation temperature by using the multiple lines of H2CS. As approaching to the protostar A1, the rotation temperature steeply rises up to 300 K or higher at the radius of 50 au from the protostar. It is likely due to a local accretion shock and/or the preferential protostellar heating of the transition zone from the circummultiple structure to the disk around A1. This position corresponds to the place where the organic molecular lines are reported to be enhanced. Since the rise of the rotation temperature of H2CS most likely represents the rise of the gas and dust temperatures, it would be related to the chemical characteristics of this prototypical hot corino.
description: 75 pages, 25 figures
Unification of Quantum Gravity and Higher Curvature Corrections: Towards a Singularity-Free Universe
Creators: name: DEL AMO, Iñaki
Publisher: name: Zenodo
Year: 2024
Subjects: Quantum Gravity
Higher Curvature Corrections
Singularity-Free Cosmology
Big Bang Alternatives
Quantum Big Bounce
Extended Einstein-Hilbert Action
Gauss-Bonnet Gravity
Lovelock Gravity
Black Hole Singularities
Cosmic Microwave Background (CMB)
Gravitational Waves
String Theory
Loop Quantum Gravity
Early Universe Dynamics
Non-Singular Cosmology

description: This paper presents a unified framework integrating quantum-cosmological corrections with higher curvature gravity theories to resolve fundamental problems related to singularities in cosmology. By extending the Einstein-Hilbert action and incorporating corrections such as f(R), Gauss-Bonnet, and Lovelock gravity, the work aims to eliminate singularities both in the Big Bang and black hole scenarios. The model supports the concept of a Quantum Big Bounce that replaces classical singularities, resulting in a non-singular universe evolution. Theoretical predictions are provided for gravitational waves, Cosmic Microwave Background (CMB) anomalies, and large-scale structure formation. This paper aligns its findings with modern advances in quantum cosmology and string theory, offering a novel approach to achieve a more complete, singularity-free cosmological model.

contact@inakidelamo.com
Industrial Network Topology Analysis with Episode Mining
Creators: name: Meshram, Ankush
Publisher: name: Karlsruhe
Year: 2019

description: Industrial network communication is highly deterministic as result of availability requirement of control systems in automated industrial production systems. This deterministic character helps with initial step of self-learning anomaly detection systems to detect periodic production cycle in industrial network communication. The methods for frequent episode mining in event sequences fits well to solve the challenge of production cycle detection for self-learning system. We encode the network communication events to serial and parallel episodes. Methods for discovery of frequent episodes in event sequences are briefly explained. These methods would be further adapted in future to our encoded network communication traffic to extract production cycle comprised of serial and parallel episodes.
Towards Non-Contact Glucose Sensing in Aqueous Turbid Medium at ~1.1 Meters Distance
Creators: name: Piao, Daqing
name: O'Hara, John
name: Bukkapatnam, Satish
name: Ekin, Sabit
Publisher: name: arXiv
Year: 2020
Subjects: subject: Medical Physics (physics.med-ph)
subject: Signal Processing (eess.SP)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This work demonstrates a non-contact diffuse reflectance approach with a working distance of ~1.1 meters for the potential of glucose sensing. Non-contact diffuse reflectance over 1.1-1.3 micrometers was developed according to a center-illumination-area-detection (CIAD) geometry. The modeled response of diffuse reflectance in the CIAD geometry was examined with phantoms by altering independently the size of the collection geometry and the reduced scattering and absorption properties of the medium. When applied to aqueous turbid medium containing glucose control solutions with the cumulative volume varying over three orders of magnitude, a linear relationship expected for the diffuse reflectance as a function of the medium absorption/reduced-scattering property was observed for four conditions of the glucose-medium composition that differed either in the effective glucose concentration or the host medium scattering property. The cumulation of glucose up to 17.8mg/dL and 8.9mg/dL in the host medium having the same optical properties resulted in linear regression slopes of 0.0032 and 0.0030, respectively. The cumulation of the glucose up to 17.8mg/dL in an aqueous host medium that differed two folds in the reduced scattering property caused the linear regression slope to differ between 0.0032 and 0.0019. The R^2 values of all cases were all greater than 0.987. A provisional patent (US#63/053,004) has been obtained for this work.
description: 21 pages, 12 figures
Η βασιλεία στην Ελλάδα : 1946-1974
Creators: name: Παπαγιάννης, Δημήτριος Θεόδωρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: βασιλεία
Ελλάδα
δημοψηφίσματα 1946 - 1974
kingship
Greece
referendums 1946 - 1974

description: Σκοπός της διατριβής ήταν η μελέτη του θεσμού της βασιλείας στην Ελλάδα ανάμεσα στα δημοψηφίσματα του 1946 και του 1974. Υποστηρίχθηκε σαν υπόθεση εργασίας, η άποψη ότι η πολιτική και κοινωνική αποδυνάμωση της βασιλείας την περίοδο αυτή, οφείλονταν στον ανταγωνισμό που ανέπτυξε με τους τρεις άλλους παράγοντες εξουσίας την ίδια περίοδο: τα πολιτικά κόμματα, τον στρατό, τον εξωτερικό παράγοντα. Μετά από μια σύντομη εισαγωγή, η εργασία δεν εξετάζει με χρονολογική σειρά τα γεγονότα, αλλά παρακολουθεί ανά κεφάλαιο τη σχέση της βασιλείας με κάθε έναν από τους παραπάνω παράγοντες. Στην συνέχεια χρησιμοποιεί τα ιστορικά γεγονότα για την απόδειξη των θέσεων που προαναφέρονται. Στο τέλος ακολουθούν τα συμπεράσματα και εξετάζεται εκ νέου η υπόθεση εργασίας, αν αποδείχθηκε ή όχι.
description: The aim of the present thesis is the research of the kingship in Greece between the referendums of 1946 and 1974. As a case study it supported the view that the political and social weakening of the kingship this period is due to the rivalry the kingship developed with the three other power factors at the same period : the political parties, the army and the external factor. After a short introduction, the thesis does not examine the events with chronological order but observes the dealings of kingship with each one of the three factors. Subsequently it uses the historical events for the evidence of the views. The last part of the thesis is dedicated to the conclusions and the evaluation for the true or false of the case study.
Massive black hole binary systems and the NANOGrav 12.5 year results
Creators: name: Middleton, Hannah
name: Sesana, Alberto
name: Chen, Siyuan
name: Vecchio, Alberto
name: Del Pozzo, Walter
name: Rosado, Pablo A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has recently reported evidence for the presence of a common stochastic signal across their array of pulsars. The origin of this signal is still unclear. One of the possibilities is that it is due to a stochastic gravitational wave background (SGWB) in the $\sim 1-10\,{\rm nHz}$ frequency region. Taking the NANOGrav observational result at face value, we show that this signal would be fully consistent with a SGWB produced by an unresolved population of in-spiralling massive black hole binaries (MBHBs) predicted by current theoretical models. Considering an astrophysically agnostic model we find that the MBHB merger rate is loosely constrained to the range $10^{-11} - 2$ $\mathrm{Mpc}^{-3}\,\mathrm{Gyr}^{-1}$. Including additional constraints from galaxy pairing fractions and MBH-bulge scaling relations, we find that the MBHB merger rate is $10^{-5} - 5\times10^{-4}$ $\mathrm{Mpc}^{-3}\,\mathrm{Gyr}^{-1}$, the MBHB merger time-scale is $\le 3\,\mathrm{Gyr}$ and the norm of the $M_\mathrm{BH}-M_\mathrm{bulge}$ relation $\ge 1.2\times 10^{8}\,M_\odot$ (all intervals quoted at 90\% confidence). Regardless of the astrophysical details of MBHB assembly, this result would imply that a sufficiently large population of massive black holes pair up, form binaries and merge within a Hubble time.
description: 6 pages, 4 figures, to be submitted