cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Disorder Dynamics in Battery Nanoparticles During Phase Transitions Revealed by Operando Single-Particle Diffraction
Creators: name: Huang, Jason
name: Weinstock, Daniel
name: Hirsh, Hayley
name: Bouck, Ryan
name: Zhang, Minghao
name: Gorobtsov, Oleg Yu.
name: Okamura, Malia
name: Harder, Ross
name: Cha, Wonsuk
name: Ruff, Jacob P. C.
name: Meng, Y. Shirley
name: Singer, Andrej
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Structural and ion-ordering phase transitions limit the viability of sodium-ion intercalation materials in grid scale battery storage by reducing their lifetime. However, the combination of phenomena in nanoparticulate electrodes creates complex behavior that is difficult to investigate, especially on the single nanoparticle scale under operating conditions. In this work, operando single-particle x-ray diffraction (oSP-XRD) is used to observe single-particle rotation, interlayer spacing, and layer misorientation in a functional sodium-ion battery. oSP-XRD is applied to Na$_{2/3}$[Ni$_{1/3}$Mn$_{2/3}$]O$_{2}$, an archetypal P2-type sodium-ion positive electrode material with the notorious P2-O2 phase transition induced by sodium (de)intercalation. It is found that during sodium extraction, the misorientation of crystalline layers inside individual particles increases before the layers suddenly align just prior to the P2-O2 transition. The increase in the long-range order coincides with an additional voltage plateau signifying a phase transition prior to the P2-O2 transition. To explain the layer alignment, a model for the phase evolution is proposed that includes a transition from localized to correlated Jahn-Teller distortions. The model is anticipated to guide further characterization and engineering of sodium-ion intercalation materials with P2-O2 type transitions. oSP-XRD therefore opens a powerful avenue for revealing complex phase behavior in heterogeneous nanoparticulate systems.
description: 23 pages, 4 main figures, 9 supplemental figures
Future developments of revenue management - perspectives of revenue management practitioners
Creators: name: Stenlund, Robin
name: Remy, Detlev
name: Gerstkamp, Wolf
Publisher: name: Singapore Institute of Technology
Year: 2023
Subjects: classificationCode: 350402
subject: Hospitality management

description: The purpose of this study was to explore revenue management practitioners’ view on future developments of revenue management (RM) with a focus on the hotel industry. While revenue management continues to evolve, there is a significant interest from academics and practitioners to explore future developments as this area is still under researched. In the presence of continuous evolving revenue management, criticisms on hotel revenue management practices have divulged and further developments are to be expected. The authors investigated prevailing literature on hotel revenue management to investigate a link between current criticisms on revenue management and possible developments by gathering practitioners’ perspectives on identified critics and new developments. The objectives involved a review of prevailing literature on hotel RM to investigate a link between criticisms on RM and new developments and thus gathering practitioners’ perspectives on identified critics and possible developments. The authors conducted an interpretive research philosophy, using a qualitative data collection process through semi-structured interviews with industry experts. Moreover, to ensure qualified participants a purpose full sampling was conducted and included seven RM practitioners. The foundations of the interviews were retrieved through the literature identifying several pattern codes. Findings obtained from the interviews were linked and compared to previous research identifying whether the results offered new insights or if they were in agreement with previous studies. The findings revealed that revenue management should focus on managing revenue from all revenue generating departments in order to optimize profitability. Also, a more technologically advanced and analytically tool focusing on customer behaviour and preferences through a combination of CCRM and CRM is to be expected.
Observing quantum chaos with noisy measurements and highly mixed states
Creators: name: Ralph, Jason F.
name: Jacobs, Kurt
name: Everitt, Mark J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A fundamental requirement for the emergence of classical behavior from an underlying quantum description is that certain observed quantum systems make a transition to chaotic dynamics as their action is increased relative to $\hbar$. While experiments have demonstrated some aspects of this transition, the emergence of quantum trajectories with a positive Lyapunov exponent has never been observed directly. Here, we remove a major obstacle to achieving this goal by showing that, for the Duffing oscillator, the transition to a positive Lyapunov exponent can be resolved clearly from observed trajectories even with measurement efficiencies as low as 20%. We also find that the positive Lyapunov exponent is robust to highly mixed, low purity states and to variations in the parameters of the system.
description: 3 figures, 5 pages, updated after comments
Linear acceleration emission of pulsar relativistic streaming instability and interacting plasma bunches
Creators: name: Benáček, Jan
name: Muñoz, Patricio A.
name: Büchner, Jörg
name: Jessner, Axel
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Linear acceleration emission is one of the mechanisms that might explain intense coherent emissions of radio pulsars. This mechanism is not well understood, however, because the effects of collective plasma response and nonlinear plasma evolution on the resulting emission power must be taken into account. In addition, details of the radio emission properties of this mechanism are unknown, which limits the observational verification of the emission model. By including collective and nonlinear plasma effects, we calculate radio emission power properties by the linear acceleration emission mechanism that occurs via the antenna principle for two instabilities in neutron star magnetospheres: 1) the relativistic streaming instability, and 2) interactions of plasma bunches. We used 1D electrostatic relativistic particle-in-cell simulations to evolve the instabilities self-consistently. From the simulations, the power properties of coherent emission were obtained by novel postprocessing of electric currents. We found that the total radio power by plasma bunch interactions exceeds the power of the streaming instability by eight orders of magnitude. The wave power generated by a plasma bunch interaction can be as large as $2.6\times10^{16}$ W. The number of bunch interactions that are required to explain the typical pulsar power, $10^{18}$-$10^{22}$ W, depends on how the coherent emissions of bunches are added up together. Although $\sim$$4\times (10^1-10^5)$ simultaneously emitting bunches are necessary for an incoherent addition of their radiation power, $\gtrsim 6-600$ bunches can explain the total pulsar power if they add up coherently. The radio spectrum of the plasma bunch is characterized by a flatter profile for low frequencies and by a power-law index up to $\approx-1.6 \pm 0.2$ for high frequencies. The plasma bunches simultaneously radiate in a wide range of frequencies.
description: 19 pages, 13 figures, 1 table
The effect of brands’ recycling activities on customers’ purchasing decisions
Creators: name: Φύσαρη, Ελευθερία Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Reverse logistics
Recycling
Customer satisfaction
Αντίστροφη εφοδιαστική αλυσίδα
Ανακύκλωση
Ικανοποίηση πελατών

description: Reverse logistics has become increasingly important in recent years. Due to climate change, which raises environmental concerns, customers have arrived at a point of seeking more information regarding how environmentally friendly the production process is handled, before and after the completion of a purchase. Marketing techniques can play an integral part on how customers perceive those actions by a company. This thesis, specifically approaches the recycling aspect of reverse logistics and aims to discover whether a company’s recycling policies influence certain marketing factors. Pointedly, if customers’ behavior is impacted by a brands’ eco-friendly practices. It is concerned with the examination of concepts such as customer satisfaction, brand loyalty, purchasing intention and brand image. To obtain the necessary results, a survey was issued online and a sample of 200 responses was procured. To analyze these responses SPSS software was used. The results that stood out most in this research were that if a brand communicates their recycling practices well, it does have a positive impact on customers, convincing them to continue supporting this certain brand. However, it should be noted that marketing experts and reverse logistics departments can only gain from collaborating more closely.
description: Η αντίστροφη εφοδιαστική έχει γίνει όλο και πιο σημαντική τα τελευταία χρόνια. Λόγω της κλιματικής αλλαγής, η οποία εγείρει περιβαλλοντικές ανησυχίες, οι πελάτες έχουν φτάσει στο σημείο να αναζητούν περισσότερες πληροφορίες σχετικά με το πόσο φιλική προς το περιβάλλον είναι η διαδικασία παραγωγής, πριν και μετά την ολοκλήρωση μιας αγοράς. Οι τεχνικές μάρκετινγκ μπορούν να παίξουν αναπόσπαστο ρόλο στον τρόπο με τον οποίο οι πελάτες αντιλαμβάνονται αυτές τις ενέργειες μιας εταιρείας. Αυτή η διατριβή προσεγγίζει συγκεκριμένα την πτυχή της ανακύκλωσης της αντίστροφης εφοδιαστικής και στοχεύει να ανακαλύψει εάν οι πολιτικές ανακύκλωσης μιας εταιρείας επηρεάζουν ορισμένους παράγοντες μάρκετινγκ. Συγκεκριμένα, εάν η συμπεριφορά των πελατών επηρεάζεται από τις φιλικές προς το περιβάλλον πρακτικές μιας μάρκας. Ασχολείται με την εξέταση εννοιών όπως η ικανοποίηση του πελάτη, η αφοσίωση στην μάρκα, η πρόθεση αγοράς και η εικόνα της μάρκας. Για τη λήψη των απαραίτητων αποτελεσμάτων, διατέθηκε μια έρευνα στο διαδίκτυο που έλαβε δείγμα 200 απαντήσεων. Για την ανάλυση αυτών των απαντήσεων χρησιμοποιήθηκε το λογισμικό SPSS. Τα αποτελέσματα που ξεχώρισαν περισσότερο σε αυτή την έρευνα ήταν ότι εάν μια μάρκα επικοινωνεί καλά τις πρακτικές ανακύκλωσής της, έχει θετικό αντίκτυπο στους πελάτες, πείθοντάς τους να συνεχίσουν να υποστηρίζουν αυτήν τη συγκεκριμένη μάρκα. Ωστόσο, πρέπει να σημειωθεί ότι οι ειδικοί μάρκετινγκ και τα τμήματα αντίστροφης εφοδιαστικής μπορούν μόνο να κερδίσουν από τη στενότερη συνεργασία.
The stochastic heat equation with multiplicative Lévy noise: Existence, moments, and intermittency
Creators: name: Berger, Quentin
name: Chong, Carsten
name: Lacoin, Hubert
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60H15, 82D60, 37H15, 60K37, 60G51

description: We study the stochastic heat equation (SHE) $\partial_t u = \frac12 Δu + βu ξ$ driven by a multiplicative Lévy noise $ξ$ with positive jumps and amplitude $β>0$, in arbitrary dimension $d\geq 1$. We prove the existence of solutions under an optimal condition if $d=1,2$ and a close-to-optimal condition if $d\geq3$. Under an assumption that is general enough to include stable noises, we further prove that the solution is unique. By establishing tight moment bounds on the multiple Lévy integrals arising in the chaos decomposition of $u$, we further show that the solution has finite $p$th moments for $p>0$ whenever the noise does. Finally, for any $p>0$, we derive upper and lower bounds on the moment Lyapunov exponents of order $p$ of the solution, which are asymptotically sharp in the limit as $β\to0$. One of our most striking findings is that the solution to the SHE exhibits a property called strong intermittency (which implies moment intermittency of all orders $p>1$ and pathwise mass concentration of the solution), for any non-trivial Lévy measure, at any disorder intensity $β>0$, in any dimension $d\geq1$.
Compiled Body of Works in Field Epidemiology
Creators: name: Abose, Ebise
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Background: Malaria continues to be the most significant mosquito-borne disease globally but it holds a particularly heavy burden across many countries in Africa where in 2015. Malaria is the leading public health problem in Ethiopia where over 75% of the land surface is at risk with varying intensities depending on altitude and season .Gelana woreda is frequently attacked by malaria outbreak .We investigated the outbreak to identify risk factors undertake and recommend proper public health action . Method: We conducted descriptive and case control study in Gelana woreda. We interviewed PHEM staff's on the prevention and control program, used outbreak investigation questionnaire to asses' risk factor for both cases and controls. We collected 65 cases and 65 controls matched with age group, sex and residence .We analyzed the data with Epi Info. Version 7.2 and SPSS.V 23. Results are presented in analytic statistics and characterized in Time, Place and Person. Result: We identified that the outbreak was in three clusters and investigated in two clusters. Males are more affected than Females (37:28) and the younger Age group of the 0-4, 33(50%) followed by 5-9, 11(16.9 %) are more affected .The overall attack rate of the 32/1000. We compared the sociodemographic variable Sex and Age group the risk factors Indoor Residual Spray (IRS) home, staying out door in the evening and at night, living around intermittent river, stagnant water irrigation and type of home among cases and controls. We found significant association in bivariate analysis at 95% CI on Intermittent River, Stagnant water and irrigation. In multivariate analysis Intermittent river and stagnant water have significantly associated with the Gelana malaria outbreak (P=0.001)[ AOR (7.003)=,95% CI (2.23-22.03)]and (P=0.001)[ AOR (4.303)=,95% CI (1.7-10.358)], 3.2 (1.9-6.3) respectively. Conclusion: Malaria outbreak is confirmed in Gelana woreda .The risk factors for the outbreak was intermittent river and stagnant water. Prevention and control programs were not properly functioning.
Πράσινη Τραπεζική και οι εφαρμογές της στα Κυπριακά Τραπεζικά Ιδρύματα
Creators: name: Καμπούρης, Μάριος Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Πράσινη
Τραπεζική
Κύπρος
Green
Banking
Cyprus

description: Έχουμε γίνει θεατές ενός ανελέητου πολέμου και ολέθριων καταστροφών του φυσικού πλούτου του πλανήτη που είναι το περιβάλλον. Το αποκορύφωμα των τεράστιων συνεπειών της οικολογικής ρύπανσης το βλέπουμε με ακραία οικολογικά φαινόμενα όπως πλημμύρες, πυρκαγιές και παράλληλη αύξηση του επιπέδου στάθμης της θάλασσας λόγω της υπερθέρμανσης του πλανήτη. Σε αυτή λοιπόν τη κρίσιμη καμπή τα Τραπεζικά Ιδρύματα θα ήταν αδύνατον να μην προσαρμοστούν σε αυτές τις εξαιρετικά δύσκολες καταστάσεις, γι’ αυτό όπως κάθε σύγχρονη μορφή επιχείρησης προσαρμόστηκε με τις απαιτήσεις του εξωτερικού περιβάλλοντος έτσι και οι τράπεζες ως ένα είδος επιχείρησης ενδιαφέρθηκαν για τη τεράστια οικολογική κρίση, και κάπως έτσι δημιουργήθηκε η έννοια της Πράσινης Τραπεζικής. Σε αυτή τη πτυχιακή εργασία θα αναφερθούμε την σημασία της Τραπεζικής στον ευρύτερο τομέα της Οικονομικής Επιστήμης ενώ θα ακολουθήσει ανάλυση του όρου της Πράσινης Τραπεζικής καθώς και εφαρμογές της συγκεκριμένης πτυχής στο τραπεζικό σύστημα της Κύπρου αλλά και τα οφέλη που επωμίζονται τόσο οι Τράπεζες, τόσο οι πελάτες αλλά και κατ’ επέκταση το ίδιο το περιβάλλον.
description: We have witnessed a ruthless war and the catastrophic destruction of the planet's natural wealth that is the environment. The culmination of the enormous consequences of ecological pollution is seen with extreme ecological phenomena such as floods, fires and a parallel increase in sea level due to global warming. At this critical juncture, it would be impossible for the Banking Institutions not to adapt to these extremely difficult situations, so just as every modern form of business has adapted to the requirements of the external environment, so the banks as a kind of business were interested in the huge ecological crisis, and this is how the concept of Green Banking was created. In this dissertation we will mention the importance of Banking in the wider field of Economic Science, while an analysis of the term Green Banking will follow, as well as applications of this aspect in the banking system of Cyprus, as well as the benefits borne by both Banks and customers. but also by extension the environment itself.
Summary of Working Group 4: Mixing and mixing-related CP violation in the B system: Δm, 𝚫𝚪, Φs, Φ1/β, Φ2/α, Φ3/γ
Creators: name: Chobanova, Veronika
name: Wingate, Matthew
name: Yusa, Yosuke
name: Dalseno, Jeremy
name: De Bruyn, Kristof
name: Egede, Ulrik
name: Ferrari, Fabio
name: Humair, Thibaud
name: Lupato, Anna
name: Malami, Eleftheria
name: Qian, Wenbin
name: Fernández, Ramón Ángel Ruiz
name: Shtabovenko, Vladyslav
name: Tsang, Justus Tobias
name: Silva, Luiz Vale
Publisher: name: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Year: 2023

description: This is a summary of the latest results in 𝐵 meson mixing and mixing-related CP violation presented at CKM 2021. We place these in the context of both recent experimental measurements, theoretical developments and future prospects in the field.
An Online Efficient Two-Scale Reduced Basis Approach for the Localized Orthogonal Decomposition
Creators: name: Keil, Tim
name: Rave, Stephan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 35J20, 65N15, 65N30

description: We are concerned with employing Model Order Reduction (MOR) to efficiently solve parameterized multiscale problems using the Localized Orthogonal Decomposition (LOD) multiscale method. Like many multiscale methods, the LOD follows the idea of separating the problem into localized fine-scale subproblems and an effective coarse-scale system derived from the solutions of the local problems. While the Reduced Basis (RB) method has already been used to speed up the solution of the fine-scale problems, the resulting coarse system remained untouched, thus limiting the achievable speed up. In this work we address this issue by applying the RB methodology to a new two-scale formulation of the LOD. By reducing the entire two-scale system, this two-scale Reduced Basis LOD (TSRBLOD) approach, yields reduced order models that are completely independent from the size of the coarse mesh of the multiscale approach, allowing an efficient approximation of the solutions of parameterized multiscale problems even for very large domains. A rigorous and efficient a posteriori estimator bounds the model reduction error, taking into account the approximation error for both the local fine-scale problems and the global coarse-scale system.
Linearisation of a Monitor for Web-based Experiments - VSS 2023 poster
Creators: name: Peirce, Jonathan
name: Dundas, Kimberley
name: Hirst, Rebecca
Publisher: name: Open Science Framework
Year: 2023

description: Running studies online has become increasingly popular but, for psychophysics it presents some particular challenges due to the high precision that is often required in those studies. For many psychophysical studies it’s important that the screen has a linear luminance profile rather than one following a gamma function, as typically found on computer screens. We need to gamma correct the monitor. This presents two problems for online studies. In the lab we would a) measure the luminance profile with a photometer and b) set the gamma value in the graphics card lookup table (LUT). In web-based experiments the participant doesn’t typically have access to a photometer and the browser doesn’t have access to the graphics card LUT. Here, we show that PsychoJS successfully sets the gamma for the scene, seamlessly on each frame and we demonstrate a psychophysical method to measure the screen gamma that is very precise and quick to run (with roughly 30 rapid trials) at the start of a study.
Cosmological constraints from $μE$ cross-correlations
Creators: name: Ota, Atsuhisa
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive general expressions of the $C^{μX}_l$, the cross correlation function between the cosmic microwave background spectral $μ$ distortion and the linear perturbations in the cosmic microwave background such as the temperature perturbations and the polarizations. The cross correlations are known as new tests for the extremely squeezed shape of primordial non-Gaussianity, which is inaccessible through the direct observations of the temperature 3-point functions. Our formulae are applicable to the arbitrary combinations of the scalar and the tensor perturbations, and we discuss the potential for detecting these quantities. We provide signal-to-noise ratio of the $μE$ as well as $μT$, based on an experiment like the Primordial Inflation Explorer. We also find the signal-to-noise ratio from the scale dependent nonlinearity. For instance, we show that $f^{\rm loc}_{\rm NL}(k_1,k_2,k_3)=\left(k_1k_2k_3\right)^{1/3}k_0^{-1}F_0$ with $k_0=0.05{\rm Mpc}^{-1}$ can be detectable at 1$σ$ level even for $F_0 \sim \mathcal O(1)$.
description: 20 pages
Hybrid bounds for the sup-norm of automorphic forms in higher rank
Creators: name: Toma, Radu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F55, 11F72, 11D45, 11R52

description: Let $A$ be a central division algebra of prime degree $p$ over $\mathbb{Q}$. We obtain subconvex hybrid bounds, uniform in both the eigenvalue and the discriminant, for the sup-norm of Hecke-Maass forms on the compact quotients of $\operatorname{SL}_p(\mathbb{R})/\operatorname{SO}(p)$ by unit groups of orders in $A$. The exponents in the bounds are explicit and polynomial in $p$. We also prove subconvex hybrid bounds in the case of certain Eichler-type orders in division algebras of arbitrary odd degree.
description: 29 pages. Minor improvements, implemented suggestions from referee. To appear in Trans. AMS. Comments are welcome!
Ecology of intertidal crabs, and interactions between native and introduced species of crabs
Creators: name: Sinclair., Michael Andrew
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Almost opposite regression dependence in bivariate distributions
Creators: name: Siburg, Karl Friedrich
name: Stoimenov, Pavel A.
Publisher: name: Technische Universität Dortmund
Year: 2014
Subjects: subject: regression
subject: 310
subject: 330
subject: 620

description: Let X,Y be two continuous random variables. Investigating the regression dependence of Y on X, respectively, of X on Y, we show that the two of them can have almost opposite behavior. Indeed, given any e > 0, we construct a bivariate random vector (X,Y) such that the respective regression dependence measures r2|1(X,Y), r1|2(X,Y) ∈ [0,1] introduced in Dette et al. (2013) satisfy r2|1(X,Y) = 1 as well as r1|2(X,Y)
description: Discussion Paper / SFB 823;27/2014
Η νομισματική κυκλοφορία στην υστεροβυζαντινή Θράκη (1204-1453)
Creators: name: Ευθύμογλου, Σοφία Χαράλαμπου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Νομισματική κυκλοφορία
Θράκη
Υστεροβυζαντινή περίοδος
Numismatic Circulation
Thrace
Late Byzantine period

description: Η παρούσα διπλωματική εργασία πραγματεύεται τη νομισματική κυκλοφορία στη Θράκη κατά την ύστερη βυζαντινή περίοδο (1204-1453). Η επιλογή τόσο της συγκεκριμένης χρονικής περιόδου, όσο και της γεωγραφικής θέσης ως αντικειμένου έρευνας οφείλεται στις ιδιαιτερότητες που παρουσιάζει η Θράκη κατά την περίοδο αυτή. Η εργασία στηρίζεται σε δύο άξονες. Ο πρώτος άξονας περιλαμβάνει την εξέταση των γραπτών πηγών συμβάλλοντας στην ανάδειξη της εικόνας της οικονομίας της περιοχής. Ο δεύτερος άξονας, ο οποίος είναι και ο εκτενέστερος, πραγματεύεται τη μελέτη της νομισματικής κυκλοφορίας στη Θράκη μέσα από την εξέταση και ανάλυση των θησαυρικών συνόλων και των μεμονωμένων ευρημάτων − βυζαντινών και ξένων − που εντοπίζονται σε αυτή. Παράλληλα, γίνεται ένα σχεδίασμα της παραγωγής των νομισματοκοπείων με προεξάρχον αυτό της Κωνσταντινούπολης, δίνοντας έμφαση στα προβλήματα που υπάρχουν, όπως επίσης και στις προτάσεις περί λειτουργίας επιπρόσθετων νομισματοκοπείων στην περιοχή της Θράκη. Τέλος, μέσα από τη σύγκριση δεδομένων του υλικού της Θράκης τόσο με όσα ισχύουν στην περιοχή πριν το 1204, όσο και με άλλες περιοχές της αυτοκρατορίας κατά τους τελευταίους αιώνες της, αναδεικνύονται οι ομοιότητες και οι διαφοροποιήσεις που χαρακτηρίζουν την υστεροβυζαντινή Θράκη.
description: Numismatic Circulation in Late Byzantine Thrace (1204-1453). This MA thesis focuses on the numismatic circulation in Thrace during the Late Byzantine period (1204-1453). This time period and particular geographical area were chosen because of the particularities that characterized Thrace in the Late Byzantine period. It consists of two main parts. The first part relies on the written sources, in order to highlight economic trends in the region. The second part, which is the most extensive, focuses on the study of numismatic circulation in Thrace through the analysis of hoards and single finds − Byzantine and non-Byzantine − found in the area. At the same time, a sketch of local coin production is offered, especially for the mint of Constantinople, emphasizing problematic issues in its production; the existence of additional mints in the region of Thrace is also discussed. Finally, the similarities and differences of Late Byzantine Thrace both with the numismatic circulation in the region before 1204, and with the circulation in other areas of the empire during the last centuries of its existence, are also discussed.
Ferromagnetic and metamagnetic transitions in itinerant electron systems: a microscopic study
Creators: name: Yamase, Hiroyuki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We perform a microscopic study of itinerant ferromagnetic systems. We reveal a very rich phase diagram in the three-dimensional space spanned by the chemical potential, a magnetic field, and temperature beyond the Landau theory analyzed so far. Besides a generic wing structure near a tricritical point upon introducing the magnetic field, we find that an additional wing can be generated close to a quantum critical end point (QCEP) and also even from deeply inside the ferromagnetic phase. A tilting of the wing controls the entropy jump associated with the metamagnetic transition. Ferromagnetic and metamagnetic transitions are usually accompanied by a Lifshitz transition at low temperatures, i.e., a change of Fermi surface topology including the disappearance of the Fermi surface. In particular, the Fermi surface of either spin band vanishes at the QCEP. These rich phase diagrams are understood in terms of the density of states and the breaking of particle-hole symmetry in the presence of a next nearest-neighbor-hopping integral t', which is expected in actual materials. The obtained phase diagrams are discussed in a possible connection to itinerant ferromagnetic systems such as UGe2, UCoAl, ZrZn2, and others including materials exhibiting the magnetocaloric effect.
description: 25 page, 11 figures
Assessing Child Immunization Coverage and Its Determinants in Sinana District, Bale Zone, Oromia Regional State, Ethiopia
Creators: name: Dechassa, Worku
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2013

description: Background: - Immunization remains one of the most important public health intervention and cost effective strategy to reduce child mortality and morbidity associated with infectious diseases and is estimated to avert between 2 and 3 million deaths each year. The objective of this study was to assess complete immunization coverage and its associated factors among children age 12-23 months in Sinana district. Methods: - A cross-sectional community based survey was conducted in 6 kebeles (PA) of Sinana District from 29, December 2012 –16, January 2013. A modified World Health Organization Expanded Program on Immunization cluster sampling methods was used for household selection. Data on 591 children aged 12-23 months and mothers pair were collected by using a pre-tested structured questionnaire through house to house visits from vaccination card and mother's verbal reports. Bivariate and multivariate logistic regression analyses were used to assess factors associated with fully immunization coverage of children. Results: - of 591 interviewed mothers' of children, only 10.2% of the mothers have attended secondary and above level of education. Of children included in this study, only 33% of them had vaccination card at time of the survey and about 76.8% of the children aged 12-23 months were fully vaccinated by card plus history. Factors significantly associated with full immunization were antenatal care follow-up (adjusted odds ratio (AOR = 3.7, 95% CI: 2.3- 5.9), mother occupation being farmer (AOD=1.9, 95% CI:1.14-3.1), educational level of father being secondary and above (AOD=3.1, 95%CI:1.3-7.4), household family income greater than one thousand(AOD=3.2, 95% CI:1.4-7.4) , average walking time less than an hour(AOD=3.1, 95% CI:1.5-6.3), ever discuss about immunization with health service extension worker(AOD=2.4, 95%CI:1.32-4.2) and mother's sufficient knowledge on immunization(AOD=2.5, 95% CI 1.5-4.2) , whereas area of residence , educational level of mother and child sex were not significantly associated. Conclusion: - Even though, immunization coverage of children in sinana district gets improvement over national coverage, yet it is below governmental plan of 90%. Maternal Health care utilization and knowledge of mother about vaccine and Vaccine Preventable Diseases are the main factors associated with complete immunization coverage. It is vital that, local programmatic intervention should be strengthened to upgrade awareness of the community on the importance of immunization, antenatal care and working on advancing economical status of community is the way to optimize children's immunization coverage
Vector DC magnetic-field sensing with reference microwave field using perfectly aligned nitrogen-vacancy centers in diamond
Creators: name: Isogawa, Takuya
name: Matsuzaki, Yuichiro
name: Ishi-Hayase, Junko
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The measurement of vector magnetic fields with high sensitivity and spatial resolution is important for both fundamental science and engineering applications. In particular, magnetic-field sensing with nitrogen-vacancy (NV) centers in diamond is a promising approach that can outperform existing methods. Recent studies have demonstrated vector DC magnetic-field sensing with perfectly aligned NV centers, which showed a higher readout contrast than NV centers having four equally distributed orientations. However, to estimate the azimuthal angle of the target magnetic field with respect to the NV axis in these previous approaches, it is necessary to apply a strong reference DC magnetic field, which can perturb the system to be measured. This is a crucial problem, especially when attempting to measure vector magnetic fields from materials that are sensitive to applied DC magnetic fields. Here, we propose a method to measure vector DC magnetic fields using perfectly aligned NV centers without reference DC magnetic fields. More specifically, we used the direction of linearly polarized microwave fields to induce Rabi oscillation as a reference and estimated the azimuthal angle of the target fields from the Rabi frequency. We further demonstrate the potential of our method to improve sensitivity by using entangled states to overcome the standard quantum limit. Our method of using a reference microwave field is a novel technique for sensitive vector DC magnetic-field sensing.
description: 10 pages, 8 figures
Reactive magnetron sputter deposition of superconducting niobium titanium nitride thin films with different target sizes
Creators: name: Bos, B. G. C.
name: Thoen, D. J.
name: Haalebos, E. A. F.
name: Gimbel, P. M. L.
name: Klapwijk, T. M.
name: Baselmans, J. J. A.
name: Endo, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The superconducting critical temperature (Tc > 15K) of niobium titanium nitride (NbTiN) thin films allows for low-loss circuits up to 1.1 THz, enabling on-chip spectroscopy and multi-pixel imaging with advanced detectors. The drive for large scale detector microchips is demanding NbTiN films with uniform properties over an increasingly larger area. This article provides an experimental comparison between two reactive d.c. sputter systems with different target sizes: a small target (100mm diameter) and a large target (127 mm x 444.5 mm). This article focuses on maximizing the Tc of the films and the accompanying I-V characteristics of the sputter plasma, and we find that both systems are capable of depositing films with Tc > 15 K. The resulting film uniformity is presented in a second manuscript in this volume. We find that these films are deposited within the transition from metallic to compound sputtering, at the point where target nitridation most strongly depends on nitrogen flow. Key in the deposition optimization is to increase the system's pumping speed and gas flows to counteract the hysteretic effects induced by the target size. Using the I-V characteristics as a guide proves to be an effective way to optimize a reactive sputter system, for it can show whether the optimal deposition regime is hysteresis-free and accessible.
description: Accepted 2016 November 12, for publication in IEEE Transactions on Applied Superconductivity, Applied Superconductor Conference 2016. 5 pages, 4 figures
Big Data in Logistics & Supply Chain Management
Creators: name: Ιωαννίδης, Βασίλειος Θεόδωρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Μεγάλα Δεδομένα
Επιχειρηματική Ευφυΐα
Λογισμικό Power BI
Big Data
Business Intelligence
Power BI software

description: Στις μέρες μας οι εταιρείες έχουν ξεκινήσει να κατανοούν την σημαντικότητα της χρήσης δεδομένων στην διαδικασίας λήψης αποφάσεων. Επιπλέον η χρήση μεγάλων δεδομένων στην ανώτατη εκπαίδευση έχει εξελιχθεί μαζικά στοχεύοντας στην εφαρμογή νέων εργαλείων και μεθόδων που βοηθούν τις επιχειρησιακές ανάγκες. Η συγκεκριμένη μεταπτυχιακή εργασία εμπεριέχει και την βιβλιογραφική ανασκόπηση αλλά και την εφαρμογή ενός πρακτικού παραδείγματος στο χώρο των μεγάλων δεδομένων των logistics και της αλυσίδας εφοδιασμού. Επομένως στοχεύει την εξέταση των σχετικών βιβλιογραφιών στα συγκεκριμένα θέματα. Στο πρώτο μέρος την εργασίας υπάρχει η βιβλιογραφική ανασκόπηση και η παρουσίαση των μεγάλων δεδομένων της επιχειρηματικής ευφυΐας και της ανάλυσης δεδομένων. Το δεύτερο κεφάλαιο σχετίζεται με την παρουσίαση του λογισμικού Power BI πάνω σε ένα πρακτικό παράδειγμα μιας υπάρχουσας εταιρείας
description: Nowadays companies are beginning to understand the importance of using more data to support decision for their strategies. Also, the use of big data in higher education has grown massively with a focus on the practical application of new tools and methods for supporting companies need. This master thesis is a mixed study of both literature review and practical example implementation in the topic of big data at logistics and supply chain management. Therefore, targets the examination of the associated literature in the related topics to enrich the knowledge on them. At the first part of the thesis, there is a bibliographic presentation of big data, business intelligence and analytics. The second part is related with a presentation of Power BI software combined with a practical example from an existing company.
title: Kompetenzentwicklung von Arbeitsgruppen durch Teamfeedback
title: Development of group competency through team feedback
titleType: AlternativeTitle
Creators: name: Hennlein, Svenja
name: Jöns, Ingela
Publisher: name: Lucius & Lucius Verlagsgesellschaft
Year: 2006
Subjects: subject: organizational development
subject: personnel management/leadership
subject: qualification
subject: teamwork
subject: Gruppenarbeit
subject: Personalführung
subject: Qualifikation
subject: Organisationsentwicklung
subject: 300
subject: 650

description: Auf Basis der Ergebnisse einer längsschnittlich angelegten Studie in einem Unternehmen der Stahlverarbeitung mit 71 Arbeitsgruppen werden Bedingungen der Entwicklung von Gruppenkompetenz durch Teamfeedback analysiert. Es wurde untersucht, ob Gruppen das Teamfeedback zum Ableiten von Maßnahmen nutzen und in welchen Fällen eine Kompetenzentwicklung daraus resultiert. Die Ergebnisse belegen, dass die von den Gruppen subjektiv wahrgenommene Übereinstimmung von aufgrund des Feedbacks getroffenen Maßnahmen und Problemfeldern der Gruppe von großer Bedeutung ist. Außerdem spielt gerade für Gruppen, die in ihrer Gruppenkompetenz nach eigener Einschätzung noch nicht weit entwickelt sind, die Überprüfung der Maßnahmenumsetzung eine bedeutende Rolle. Gleichfalls haben Gruppenmerkmale wie Rotation in der Ausführung der Tätigkeiten innerhalb der Gruppe und Bestandszeit der Gruppe Einfluss auf die Entwicklung der Gruppen.
description: Conditions for the development of group competency through team feedback were analysed based on a longitudinal study in a steel producing organisation with 71 workgroups. Investigated was if groups use team feedback to deduce measures resulting in the development of competencies. The findings prove the importance of the perceived congruence between measures and problems. Furthermore, checking the implementation of measures plays a decisive role among groups which are not well developed yet (in their self-assessment). Likewise, traits of the groups ? like job rotation and group longevity ? have an influence on group development.
description: Arbeit
All Two-Loop, Color-Dressed, Six-Point Amplitude Integrands in sYM
Creators: name: Bourjaily, Jacob L.
name: Langer, Cameron
name: Zhang, Yaqi
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct all six-particle helicity amplitude integrands in color-dressed, maximally supersymmetric Yang-Mills theory at two loops in a single prescriptive basis of master integrands.
description: 5+2 pages; 15 figures. Updated for completeness and calrity
Formation of plasma around a small meteoroid: 1. Kinetic theory
Creators: name: Dimant, Y. S.
name: Oppenheim, M. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Every second millions of small meteoroids enter the Earth's atmosphere producing dense plasmas. Radars easily detect these plasmas and researchers use this data to characterize both the meteoroids and the atmosphere. This paper develops a first-principle kinetic theory describing the behavior of particles, ablated from a fast-moving meteoroid, that colliside with the atmospheric molecules. This theory produces analytic expressions describing the spatial structure and velocity distributions of ions and neutrals near the ablating meteoroid. This analytical model will serve as a basis for a more accurate quantitative interpretation of radar measurements and should help calculate meteoroid and atmosphere parameters from radar head-echo observations.
description: 35 pages, 10 figures
title: Von Bürokraten zu Managern?
title: Identitätsmanagement im Organisationswandel von Krankenkassen
titleType: AlternativeTitle
title: From acting bureaucratically to efficient management? Identity management in organisational change of state regulated social insurances
titleType: AlternativeTitle
Creators: name: Bode, Ingo
Publisher: name: Lucius & Lucius Verlagsgesellschaft
Year: 2005
Subjects: subject: job organisation
subject: organisational development
subject: occupational group
subject: service/administration
subject: sociology
subject: Arbeitsorganisation/Organisationsentwicklung
subject: Dienstleistung/Verwaltung
subject: Personen-/Berufsgruppen
subject: Soziologie
subject: 300
subject: 650

description: Gesetzliche Krankenkassen sind administrative Schaltstellen eines sich dynamisch entwickelnden Gesundheitswesens. Im Zuge veränderter sozialpolitischer Steuerungen wandelt sich das Verhältnis zwischen den Kassen und ihren Umwelten. Wesentlich erscheint dabei die Aufwertung betriebswirtschaftlichen Denkens. Dadurch sind die Akteure gefordert, sich auf das organisationale Handeln einen neuen Reim zu machen . Der Beitrag untersucht, welche neue Subjektivität organisationalen Handelns bei Führungskräften der Kassen entsteht. Die Analyse richtet sich auf Handlungskonzepte von mittleren Führungskräften und begreift diese als Ergebnis einer sinnhaften Auseinandersetzung mit dem multiplen Identitätshaushalt ihrer Organisation. Argumentiert wird, dass sich erst aus dem Identitätsmanagement der Funktionäre die Korridore für einen konstruktiven Umgang mit den umweltinduzierten Herausforderungen ergeben. Anders gewendet: Der effektive Umbau des Kassensystems hängt zumindest teilweise von der Art und Weise ab, wie dessen Funktionäre den Wandlungsprozess kreativ interpretieren.
description: State-regulated social insurances serve as an administrative switchboard of dynamically evolving health systems. With new social policies, the relationship between these organisations and their environments is changing. The central issue is a growing value given to enterprise-centred economic thinking. Major actors are challenged to make new sense of organisational agency. This article explores which new subjectivity of organisational agency is emerging under these conditions. The analysis focuses on actionconcepts of leaders at the intermediary management level, conceiving of these concepts as an expression of active sense-making relative to the multiple identity frames within their organisation. It is argued that it is by this identity management that corridors are built for constructively coping with the challenges posed by organisational environments. Put otherwise: The effective reconstruction of the health insurance system depends, at least partially, on the way its agents creatively confer (new) sense to the process of change.
description: Arbeit
title: Perspektiverweiterung statt Kriseninszenierung
title: Ein Beitrag zum Diskurs über die Zukunft der Arbeits- und Industriesoziologie
titleType: AlternativeTitle
title: Extension of perspectives instead of performance of crisis. A Contribution to the German discussion on industrial sociology
titleType: AlternativeTitle
Creators: name: Jürgens, Kerstin
Publisher: name: Lucius & Lucius Verlagsgesellschaft
Year: 2005
Subjects: subject: sociological theories
subject: future of work
subject: Soziologie
subject: Theorien und Ansätze
subject: Zukunft der Arbeit
subject: 300
subject: 650

description: Während sich die empirische Forschung durch den rasanten Wandel von Arbeit herausgefordert sieht, beschwören Beiträge in Fachzeitschriften "Krise" und "Elend" der Arbeits- und Industriesoziologie herauf. Der Beitrag zeigt auf, dass es sich hierbei überwiegend um dramaturgische Inszenierungen handelt, und bilanziert zentrale Argumente des Diskurses. In der Teildisziplin scheint man sich einig, den Gegenstandsbereich angesichts eines Strukturwandels von Arbeit ausweiten zu müssen. Daraus werden jedoch höchst unterschiedliche Schlussfolgerungen gezogen: Betonen die einen Kritikpotential und gesellschaftstheoretischen Anspruch der Arbeits- und Industriesoziologie, gilt anderen gerade der Abschied von diesen Traditionen als Voraussetzung für ihre "Rettung". Dabei wird deutlich, dass beiden Positionen ein verkürzter Arbeitsbegriff zugrunde liegt. Eine Perspektiverweiterung auf Arbeit außerhalb der Erwerbssphäre erweist sich jedoch nicht nur aufgrund veränderter Arbeitsorganisation als geboten, sondern vermag auch Diagnosestärke und Kritikpotential der Arbeits- und Industriesoziologie nachhaltig zu stärken
description: At a time when empirical research is facing the challenge of rapid changes in the world of work, contributions to journals conjure up images of wretched, crisis-ridden sociology of work and industrial sociology. This paper points out that most such claims are dramatisations, summing up some central arguments of the discourse. Within our discipline, there appears to be widespread agreement about the need to extend the scope of research bearing in mind the structural changes affecting labour (2). However, extremely different conclusions are drawn from this consensus, with some researchers highlighting industrial sociology?s criticism potential and its pretensions to contribute to social theory, whilst others maintain that shaking off of these traditional views as essential in order to save the discipline (3). It shows that both positions are based on a shorted labour concept. Extending the purview of the concept to work done outside the area of gainful employment not only seems appropriate in the light of changes in work organ
description: Arbeit