cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Avaliação de Retornos e Riscos na Comercialização de Milho: estudo de caso usando Value-at-Risk
Creators: name: Moreira, Vilmar Rodrigues
name: Souza, Alceu
name: Duclós, Luiz Carlos
name: Moreira, Vilmar Rodrigues
name: Souza, Alceu
name: Duclós, Luiz Carlos
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Value-at-Risk (VaR)
subject: Sharpe Ratio
subject: risk management
subject: agribusiness risks.

description: In each of the productive chain links, finding viable strategies for risk mitigation is not a trivial task. Usually, generic strategies are adopted to reduce risks, such as diversification of crops and/or strategies aiming at transferring or diluting risk through futures contracts and insurance. This article aims to evaluate three strategies for managing risks concerning the corn trading: simultaneous buying and selling, storage and short selling. Towards the methodological procedures, this study is descriptive regarding its goal and it is a case study regarding the approach of the problem. Literature and documents were used as procedures for data collection, with coverage for the period of crops from 2003 to 2010. The Value at Risk (VaR) and Sharpe Ratio Modified, which is a variation of the Sharpe Ratio, were used to evaluate commercialization strategies. The results show that the highest returns for the storage would be obtained during winter seasons and for shorter periods. For the short selling, the return averages are similar for all time horizons. The simultaneous buying and selling showed the best risk/return ratio.
Uniqueness theorem for stationary black hole solutions of σ-models in five dimensions
Creators: name: Rogatko, Marek
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We prove the uniqueness theorem for stationary self-gravitating non-linear σ-models in five-dimensional spacetime. We show that the Myers-Perry vacuum Kerr spacetime is the only maximally extended, stationary, axisymmetric, asymptotically flat solution having the regular rotating event horizon with constant mapping.
description: 6 pages, Revtex, to be published in Phys.Rev.D15
Revisitando o Pronaf: velhos questionamentos, novas interpretações
Creators: name: Grisa, Catia
name: Wesz Junior, Valdermar João
name: Buchweitz, Vitor Duarte
name: Grisa, Catia
name: Wesz Junior, Valdermar João
name: Buchweitz, Vitor Duarte
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Pronaf
subject: public policies
subject: family farming
subject: rural development.

description: This paper aims at updating Pronaf ’s performance in Brazil, deepening the discussion about the beneficiary public and financed activities. The main source used for the analysis is the Statistical Yearbook of Rural Credit of Brazil’s Central Bank (1999-2012), supplemented with information from the Family Farming Secretariat (SAF) of the Agrarian Development Ministry (MDA), mainly for the period from 1996 to 1998. The results show that Pronaf maintains a concentration of resources and contracts on more capitalized farmers, commodity producers (mainly corn, soybeans and coffee) located in the South, Southeast and Center-West in Brazil, reinforcing its strong productivity-based bias. However, on the other hand, when analyzing spatialized data, we find the funding for a variety of crops in different regions. In regional terms, the increase of the overall resources and contracts has been higher in the Northeast and North. Despite this expansion, these regions and public remain, in absolute terms, the minority accessing Pronaf despite amounting for most of Brazilian family farmers.
SeMap : a generic schema matching system
Creators: name: Wang, Ting
Publisher: name: University of British Columbia
Year: 2010

description: The rapidly growing number of autonomous data sources on the web makes the need of effective tools of creating semantic mappings increasingly crucial. Moreover, the goal of allowing applications to have more expressive semantics requires a change in focus. While most previous work focus on creating mappings in specific data models for data transformation, they fail to capture a richer set of possible relationships between schema elements. For example, current schema matching approaches might discover that ’TA’ in one schema equals to ’grad TA’ in another one, even though the relationship can be modeled more accurately by saying that ’grad TA’ is a specialization of ’TA’. This increased semantics of the mapping in turn allows for applications involving richer semantics. In this thesis we concentrate on the following problem: given initial match (correspondence) information produced by current schema matching techniques, how to construct a complex, semantically richer mapping that can be used across data models? Specifically, we aim at detecting the relationship types of ’Has-a’, ’Is-a’, ’Associates’ and ’Equivalent’. Technically, we achieve this goal in mainly three steps: (1) exploiting various types of semantic evidence for possible matches; (2) finding a globally optimal match assignment; (3) identifying the relationship embedded in the selected matches. We implemented our semantic matching approach within a prototype system SeMap, and tested its accuracy and effectiveness.
title: Liquid-assisted femtosecond laser ablation of hybrid oxide nanoparticles with potenial applicaiton in medical imaging diagnosis
Creators: name: Subotic, Ana
Publisher: name: TU Wien
Year: 2018
Subjects: subject: femtosecond laser ablation
subject: medical imaging diagnosis

description: Medical imaging technologies such as mammography, magnetic resonance imaging and computed X-ray tomography play a leading role in the diagnosis of breast cancer. However clinical application of this multimodal approach is still problematic due the lack of appropriate commercial cantrast agents showing capabilities to distinguish between malignant tumours and benign abnormal masses. Hybrid nanoparticles, which contain in the same structure magnetic and radiopaque elements are a prornising alternative for the generation of these multimodal cantrast agents due to their unique characteristics, such as: high biocompatibility, cantrast enhancement efficacy, cost effectiveness and colloidal stability in the physiological environment. Liquid-Assisted Pulsed Laser Ablation (LA-PLA) of massive metal plates has proved as an efficient synthesis method to produce a wide range of stable nanoparticles in a variety of liquid solutions [1 ,2]. A major part ofthis work is production ofmultimodal nanoparticles by femtosecond laser treatment [3-5]. This method consists in the laser ablation of custom-made cerarnic plates of binary rnixed metal oxides (FeW06, FeLa03 and FeTa04) submerged in different liquids water and ethanol which contain both a magnetic (iron) and a radiopaque element, showing the same composition ofthe projected multimodal nanoparticles. The size distribution, chernical composition, and structure of the as-synthesized nanoparticles are going tobe identified by X-Ray Diffraction, Transmission Electron Microscopy, Selected Area Electron Diffraction and Energy-dispersive X-ray Spectroscopy. We are going to explore the influence ofthe quality ofthe cerarnic plates, nature ofthe solvent and laser parameters (wavelength, energy, repetition rate, fluence, scanning velocity, pulse number) on the nanoparticle productivity and characteristics ofthe colloidal nanoparticles.
Gravitational monopoles, anomalies and M$E_8$ bundles
Creators: name: Manjarin, Juan Jose
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we try to clarify the physical meaning of the gauge theory that underlies the K-theoretical classification of RR charges in type IIA. Our main tool are the conditions for the cancellation of the Freed-Witten global anomaly when we take into account the effects of a flat and a general B-field. In each case we will see how K-theory captures some eleven dimensional information. In the first case and studying the electric properties of the D6-brane we see an eleven dimensional U(2) gauge symmetry, while the second can be related to an $E_8$ theory. Moreover, in the reduction from the general to the flat case, we find that the Romans' mass gives the number of unstable intial D9-branes.
description: 32 pages, 1 figure
Fatores Relevantes na Contratação de Serviços em Terminais Intermodais para Granéis Agrícolas
Creators: name: Martins, Ricardo Silveira
name: Lobo, Débora Da Silva
name: Alves, Alexandre Florindo
name: Sproesser, Renato Luiz
name: Martins, Ricardo Silveira
name: Lobo, Débora Da Silva
name: Alves, Alexandre Florindo
name: Sproesser, Renato Luiz
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Intermodal
subject: logistics agribusiness
subject: service level.

description: This study sought to investigate the constructs that are desired by shippers in intermodal terminal services for bulk agricultural. This response may help to understand why a continental country, which mainly produces and moves products with low added value over long distances mainly by road transport. Approaching 40 shippers in Southern Brazil, using a multivariate technique Stated Preference, the constructs were ranked in the following order : reliability, time, customer relations, cost and flexibility. The results indicate that, comparatively, constructs associated with the quality of service are obtaining higher valuation instead of freight rate. This implies new trends for the transportation market, indicating increasing use of contracts and long-term relationships and reduction of hiring carters.
Period Color and Amplitude Color relations for MACHO project LMC RR Lyraes
Creators: name: Kanbur, S. M.
name: Fernando, I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper, we analyze period color and amplitude color relations at minimum, mean and maximum $V$ band light for 6391 RRab stars in the Large Magellanic Cloud obtained by the MACHO project. Specifically, we find that color and amplitude are nearly independent of period at minimum light but that there exists a definite relation between period and color and amplitude and color at maximum light. These two properties are easily explained by the application of the Stefan Boltzmann law and the interaction of the photosphere and hydrogen ionization front at minimum light. When we examine the slope of the period color relation as a function of phase, we find that the slope varies significantly with phase and is small for a wide range of phases around minimum light. This suggests that another factor that needs to be considered when trying to understand RR Lyrae observed properties is their behavior at different phases during a pulsation cycle.
description: Sumitted for publication to MNRAS Letters
Multi-task deep learning for image segmentation using recursive approximation tasks
Creators: name: Ke, Rihuan
name: Bugeau, Aurélie
name: Papadakis, Nicolas
name: Kirkland, Mark
name: Schuetz, Peter
name: Schönlieb, Carola-Bibiane
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Fully supervised deep neural networks for segmentation usually require a massive amount of pixel-level labels which are manually expensive to create. In this work, we develop a multi-task learning method to relax this constraint. We regard the segmentation problem as a sequence of approximation subproblems that are recursively defined and in increasing levels of approximation accuracy. The subproblems are handled by a framework that consists of 1) a segmentation task that learns from pixel-level ground truth segmentation masks of a small fraction of the images, 2) a recursive approximation task that conducts partial object regions learning and data-driven mask evolution starting from partial masks of each object instance, and 3) other problem oriented auxiliary tasks that are trained with sparse annotations and promote the learning of dedicated features. Most training images are only labeled by (rough) partial masks, which do not contain exact object boundaries, rather than by their full segmentation masks. During the training phase, the approximation task learns the statistics of these partial masks, and the partial regions are recursively increased towards object boundaries aided by the learned information from the segmentation task in a fully data-driven fashion. The network is trained on an extremely small amount of precisely segmented images and a large set of coarse labels. Annotations can thus be obtained in a cheap way. We demonstrate the efficiency of our approach in three applications with microscopy images and ultrasound images.
Dihadron Correlation in Jets Produced in Heavy-Ion Collisions
Creators: name: Hwa, Rudolph C.
name: Yang, C. B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The difference between the structures of jets produced in heavy-ion and hadronic collisions can best be exhibited in the correlations between particles within those jets. We study the dihadron correlations in jets in the framework of parton recombination. Two types of triggers, $π^+$ and proton, are considered. It is shown that the recombination of thermal and shower partons makes the most important contribution to the spectra of the associated particles at intermediate $p_T$. In $pp$ collisions the only significant contribution arises from shower-shower recombination, which is negligible in heavy-ion collisions. Moments of the associated-particle distributions are calculated to provide simple summary of the jet structures for easy comparison with experiments.
description: 24 pages in Latex + 5 figures
The Pre--Main-Sequence of A-type stars
Creators: name: Marconi, Marcella
name: Palla, Francesco
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Young A-type stars in the pre--main-sequence (PMS) evolutionary phase are particularly interesting objects since they cover the mass range (1.5-4 solar ma sses) which is most sensitive to the internal conditions inherited during the protostellar phase. In particular, they undergo a process of thermal relaxation from which they emerge as fully radiative objects contracting towards the main sequence. A-type stars also show intense surface activity (including winds, accretion, pulsations) whose origin is still not completely understood, and infrared excesses related to the presence of circumstellar disks and envelopes. Disks display significant evolution in the dust properties, likely signalling the occurrence of protoplanetary growth. Finally, A-type stars are generally found in multiple systems and small aggregates of lower mass companions.
description: 10 pages, 6 postscript figures, Proceedings of IAU Symp 224 (Poprad July 2004)
Short-range magnetic interactions and spin-glass behavior in the quasi-2D nickelate Pr4Ni3O8
Creators: name: Huangfu, Shangxiong
name: Guguchia, Zurab
name: Cheptiakov, Denis
name: Zhang, Xiaofu
name: Luetkens, Hubertus
name: Gawryluk, Dariusz Jakub
name: Shang, Tian
name: von Rohr, Fabian O.
name: Schilling, Andreas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The nickelate Pr4Ni3O8 features quasi-two-dimensional layers consisting of three stacked square-planar NiO2 planes, in a similar way to the well-known cuprate superconductors. The mixed-valent nature of Ni and its metallic properties makes it a candidate for potentially unconventional superconductivity. We have synthesized Pr4Ni3O8 by topotactic reduction of Pr4Ni3O10 in 10 percent hydrogen gas, and report on measurements of powder-neutron diffraction, magnetization and muon-spin rotation (uSR). We find that Pr4Ni3O8 shows complicated spin-glass behavior with a distinct magnetic memory effect in the temperature range from 2 to 300 K and a freezing temperature T_s ~ 68 K. Moreover, the analysis of uSR spectra indicates two magnetic processes characterized by remarkably different relaxation rates: a slowly-relaxing signal, resulting from paramagnetic fluctuations of Pr/Ni ions, and a fast-relaxing signal, whose relaxation rate increases substantially below ~ 70 K which can be ascribed to the presence of short-range correlated regions. We conclude that the complex spin-freezing process in Pr4Ni3O8 is governed by these multiple magnetic interactions. It is possible that the complex magnetism in Pr4Ni3O8 is detrimental to the occurrence of superconductivity.
Do quantum dots allow one access to pseudogap Kondo physics?
Creators: name: Hopkinson, John
name: Hur, Karyn Le
name: Dupont, Emilie
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: For the last decade, tunable quantum dot systems have allowed the investigation of Kondo physics wherein the quenching of a single spin on an artificial atom affects the conductance. The pseudogap Kondo model featuring a density of states $ρ(ε)$ = C$|ε|^{r}$, introduced by Withoff and Fradkin in 1990 was predicted to exhibit Kondo-like physics above a critical value of the Kondo coupling, J$_c$, which several groups have shown by numerical renormalization group (RG) is finite for r$< {1/2}$. Gonzalez-Buxton {\it{et al}} showed that the strong coupling limit of the particle-hole symmetric model leads to a non-trivial $\frac{π(1-r)}{2}$ phase shift at low temperatures indicating incomplete screening of the local moment, while away from particle-hole symmetry one generically flows towards a ground state with $δ\sim π$. We examine the implications of this model for quantum dots whose leads are Fermi-liquid-like, yet possess a tunneling density of states which is suppressed at the Fermi energy as a power law.
description: 2 pages, 1 figure, poster to be presented at SCES'04 Karlsruhe July 26-30
Comparative study of Kernel based classification and feature selection methods with gene expression data
Creators: name: Tan, Mingyue
Publisher: name: University of British Columbia
Year: 2010

description: Gene expression profiles obtained by high-throughput techniques such as microarray provide a snapshot of expression values of up to ten thousands genes in a particular tissue sample. Analyzing such gene expression data can be quite cumbersome as the sample size is small, the dimensionality is high, and the data are occasionally noisy. Kernel methods such as Support Vector Machines (SVMs) [5, 45] have been extensively applied within the field of gene expression analysis, and particularly to the problems of gene classification and selection. In general, kernel methods outperform other approaches due to their ability to handle high dimensionality easily. In this thesis, we perform a comparative study of various state-of-the-art kernel based classification and feature selection methods with gene expression data. It is our aim to have all the results together in one place so that people can easily see their similarities and differences both theoretically and empirically. In the literature, a feature selection method is evaluated by the classification accuracies using the features selected by the method. This evaluation criterion measures the classification capabilities of the data after the elimination of irrelevant features. We propose another criterion, called stability, to evaluate the feature selection methods in addition to classification accuracies. The feature set selected by a stable feature selection algorithm should not change significantly when some small changes are made to the training data. In this thesis, we use both of two evaluation criteria to compare feature selection methods. It has been showed that cross validation technique can be used to improve feature selection methods in terms of classification accuracies [8]. In this thesis, we extend one existing feature selection method which utilizes Gaussian Processes (GP) [47] with Automatic Relevance Determination (ARD) [28, 34], and cross validation, and propose a new feature selection method. Experiments on real gene expression data sets show that our method outperforms all other feature selection methods in terms of classification accuracies, and achieves comparable stability as Sparse Multinomial Logistic Regression (SMLR) [23], the most stable feature selection method in the literature.
On Transfer Learning of Traditional Frequency and Time Domain Features in Turning
Creators: name: Yesilli, Melih C.
name: Khasawneh, Firas A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: There has been an increasing interest in leveraging machine learning tools for chatter prediction and diagnosis in discrete manufacturing processes. Some of the most common features for studying chatter include traditional signal processing tools such as Fast Fourier Transform (FFT), Power Spectral Density (PSD), and the Auto-correlation Function (ACF). In this study, we use these tools in a supervised learning setting to identify chatter in accelerometer signals obtained from a turning experiment. The experiment is performed using four different tool overhang lengths with varying cutting speed and the depth of cut. We then examine the resulting signals and tag them as either chatter or chatter-free. The tagged signals are then used to train a classifier. The classification methods include the most common algorithms: Support Vector Machine (SVM), Logistic Regression (LR), Random Forest (RF), and Gradient Boost (GB). Our results show that features extracted from the Fourier spectrum are the most informative when training a classifier and testing on data from the same cutting configuration yielding accuracy as high as %96. However, the accuracy drops significantly when training and testing on two different configurations with different structural eigenfrequencies. Thus, we conclude that while these traditional features can be highly tuned to a certain process, their transfer learning ability is limited. We also compare our results against two other methods with rising popularity in the literature: Wavelet Packet Transform (WPT) and Ensemble Empirical Mode Decomposition (EEMD). The latter two methods, especially EEMD, show better transfer learning capabilities for our dataset.
Η διαχείριση της κρίσης της πανδημίας του SARS-CoV-2 από τους πολιτικούς δρώντες στην Τουρκία
Creators: name: Γεωργιάδου, Ιωάννα Ζαούρι
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Covid-19
Διαχείριση κρίσης
Πολιτικό σύστημα
Crisis management
Political system

description: Η διατριβή εμβαθύνει στην πολύπλευρη διαχείριση της πανδημίας Covid-19 στην Τουρκία, εξετάζοντας τις πολιτικές, διαστάσεις διαχείρισης κρίσεων και επικοινωνίας. Στο πλαίσιο των ιστορικών προκλήσεων και των πολιτικών αλλαγών της Τουρκίας, η μελέτη διερευνά την αντιμετώπιση της πανδημίας της κυβέρνησης, την αλληλεπίδραση του πολιτικού ανταγωνισμού και τη χρήση εργαλείων πολιτικού μάρκετινγκ. Μέσω ενός συνδυασμού βιβλιογραφικής ανάλυσης, συλλογής δεδομένων από επίσημες πηγές και στατιστικής εξέτασης, η έρευνα στοχεύει να αποσαφηνίσει τη συσχέτιση των κυβερνητικών μέτρων και την πορεία της πανδημίας, καθώς και να αξιολογήσει τον αντίκτυπο στην πολιτική δυναμική και τη δημόσια συμπεριφορά. Η έρευνα αυτή επιδιώκει να ενισχύσει την κατανόησή μας για τη διαχείριση κρίσεων στην Τουρκία, συμβάλλοντας πολύτιμες γνώσεις για την περίπλοκη αλληλεπίδραση της πολιτικής, της δημόσιας υγείας και της επικοινωνίας κατά τη διάρκεια μιας παγκόσμιας κρίσης.
description: The thesis delves into the multifaceted management of the Covid-19 pandemic in Turkey, examining its political, crisis management, and communication dimensions. Against the backdrop of Turkey's historical challenges and political changes, the study investigates the government's pandemic response, the interplay of political competition, and the use of political marketing tools. Through a combination of literature analysis, data collection from official sources, and statistical examination, the research aims to elucidate the correlation between government measures and the pandemic's course, as well as assess the impact on political dynamics and public behavior. Ultimately, this comprehensive exploration seeks to enhance our understanding of crisis management in Turkey, contributing valuable insights into the intricate interplay of politics, public health, and communication during a global crisis.
The image of the heat kernel transform on Riemannian symmetric spaces of the noncompact type
Creators: name: Kroetz, Bernhard
name: Olafsson, Gestur
name: Stanton, Robert
Publisher: name: arXiv
Year: 2004
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 22Exx

description: The heat kernel or Bargmann-Segal transform on a noncompact Riemannian symmetric space X=G/K maps a square integrable function on X to a holomorphic function on the complex crown. In this article we determine the range of this transform.
description: Expanded version. Two new sections added in order to clarify two remarks in the previous verson. 15 p
On the local and global properties of the gravitational spheres of influence
Creators: name: Souami, D.
name: Cresson, J.
name: Biernacki, C.
name: Pierret, 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: We revisit the concept of sphere of gravitational activity, to which we give both a geometrical and physical meaning. This study aims to refine this concept in a much broader context that could, for instance, be applied to exo-planetary problems (in a Galactic stellar disc-Star-Planets system) to define a first order "border" of a planetary system. The methods used in this paper rely on classical Celestial Mechanics and develop the equations of motion in the framework of the 3-body problem (e.g. Star-Planet-Satellite System). We start with the basic definition of planet's sphere of activity as the region of space in which it is feasible to assume a planet as the central body and the Sun as the perturbing body when computing perturbations of the satellite's motion. We then investigate the geometrical properties and physical meaning of the ratios of Solar accelerations (central and perturbing) and planetary accelerations (central and perturbing), and the boundaries they define. We clearly distinguish throughout the paper between the sphere of activity, the Chebotarev sphere (a particular case of the sphere of activity), Laplace sphere, and the Hill sphere. The last two are often wrongfully thought to be one and the same. Furthermore, taking a closer look and comparing the ratio of the star's accelerations (central/perturbing) to that of the planetary acceleration (central/perturbing) as a function of the planeto-centric distance, we have identified different dynamical regimes which are presented in the semi-analytical analysis.
description: 11 pages, 5 figures
title: Appointment scheduling in small and medium-sized medical facilities : an exemplary design based on contextual inquiry
Creators: name: Haas, Sebastian
Publisher: name: TU Wien
Year: 2018
Subjects: subject: Terminverwaltung
subject: Medizinische Einrichtungen
subject: Webbasiertes System
subject: Terminverwaltung
subject: Medizinische Einrichtungen
subject: Webbasiertes System

description: Die Organisation von Patientenkontakten zählt zu den wichtigsten administrativen Aufgaben im Arbeitsablauf von kleinen und mittelgroßen medizinischen Einrichtungen. Mitarbeiter, welche mit der Vergabe von Terminen betraut sind, sehen sich einer Vielzahl an Herausforderungen gegenüber. So gilt es beispielsweise, einen Kompromiss zwischen hoher Auslastung und der damit verbundenen effizienten Nutzung von Ressourcen sowie der Zufriedenheit der Patienten zu finden. Die vorliegende Arbeit zielt darauf ab, die Problemstellungen und Abläufe in solchen, für Österreich typischen, kleinen Einrichtungen mit üblicherweise nicht mehr als einem Arzt zu beleuchten. In Recherchen vor Ort wurden die wichtigsten Anforderungen im Gespräch mit den am Prozess beteiligten Personen sowie durch Beobachtung der alltäglichen Betriebsabläufe ermittelt. Ein beispielhafter Entwurf einer Softwarelösung zur Unterstützung der Terminplanung wurde entwickelt, und in einer abschließenden Evaluierungsrunde mit einigen Stakeholdern diskutiert. Trotz guter Akzeptanz des vorgestellten Entwurfs zeigt die vorliegende Arbeit die Notwendigkeit von weiteren Entwicklungen und Recherchen auf.
description: Scheduling appointments is a vital task in the flow of work in small and medium-sized medical facilities. People involved in making appointments are often facing the difficulty to find a middle ground between efficient usage of resources and patient happiness. This work aims to spotlight the challenges of small facilities with usually no more than one physician, a common model in the present health care structure Austria. A contextual inquiry was carried out to gain insight into the demands and processes on site. An exemplary design striving to meet requirements was developed and evaluated with key stakeholders in a concluding iteration. This work has shown that the necessities of facilities in the present domain are differing from bigger facilities or hospitals. While the prototype was accepted well, further investigation and development is required to provide small and medium-sized facilities with an optimal solution for scheduling appointments.
On the Validity of a Factorizable Metric Ansatz in String Cosmology
Creators: name: Kanno, Sugumi
name: Soda, Jiro
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: To support the validity of a factorizable metric ansatz used in string cosmology, we investigate a toy problem in RSI model. For this purpose, we revise the gradient expansion method to conform to the factorizable metric ansatz. By solving the 5-dimensional equations of motion and substituting the results into the action, we obtain the 4-dimensional effective action. It turns out that the resultant action is equivalent to that obtained by assuming the factorizable metric ansatz. Our analysis gives the support of the validity of the factorizable metric ansatz.
description: 5 pages, Typos corrected. Published version
High-fidelity State Transfer Between Leaky Quantum Memories
Creators: name: Soh, Daniel
name: Chatterjee, Eric
name: Eichenfield, Matt
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We derive the optimal analytical quantum-state-transfer control solutions for two disparate quantum memory blocks. Employing the SLH formalism description of quantum network theory, we calculate the full quantum dynamics of system populations, which lead to the optimal solution for the highest quantum fidelity attainable. We show that, for the example where the mechanical modes of two optomechanical oscillators act as the quantum memory blocks, their optical modes and a waveguide channel connecting them can be used to achieve a quantum state transfer fidelity of 96% with realistic parameters using our derived optimal control solution. The effects of the intrinsic losses and the asymmetries in the physical memory parameters are discussed quantitatively.
Ο Βουλγαρικός εθνοφυλετισμός στην παράδοση της Ορθόδοξης Εκκλησίας στα τέλη του 19ου αιώνα
Creators: name: Γιαννόπουλος, Μιχαήλ Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Εθνοφυλετισμός
Βουλγαρικό Σχίσμα
Αγία και Μεγάλης Σύνοδος της Κωνσταντινουπόλεως του 1872
Ethnophyletism
Bulgarian Schism
Holy and Great Synod of Constantinople 1872

description: Η εμφάνιση του εθνοφυλετισμού στους κόλπους της Βουλγαρικής Εκκλησίας και η εργαλειοποίησή της για την επίτευξη πολιτικών στόχων, θα επιφέρει ολέθριο χτύπημα στην ενότητα της Ορθόδοξης Εκκλησίας και θα απειλήσει τον οικουμενικό και καθολικό χαρακτήρα της. Οι συνεχείς προσπάθειες του Οικουμενικού Πατριαρχείου για τη λύση του προβλήματος στα πλαίσια των ιερών κανόνων και της ιερής παράδοσης της Εκκλησίας καθώς και η αδιάλλακτη στάση των Βουλγάρων πρωτεργατών της εκκλησιαστικής και πολιτικής χειραφέτησής τους, απέναντι στη Μητέρα Εκκλησία, θα οδηγήσει στο Βουλγαρικό Σχίσμα. Η Εκκλησία δεν είναι - ούτε μπορεί να γίνει – εθνική αλλά υπερεθνική. Το ζήτημα αντιμετώπισε η Αγία και Μεγάλη Σύνοδος Κωνσταντινουπόλεως το 1872, η οποία με βάση το Ευαγγέλιο και τους ιερούς κανόνες καταδίκασε το φυλετισμό ως αίρεση. Έτσι η Σύνοδος διέσωσε το κύρος και την αξιοπρέπεια της Ορθοδοξίας, διατηρώντας την ταυτότητα της Εκκλησίας. Οι συνέπειες της έξαρσης του εθνικισμού είναι πολυδιάστατες στο χώρο των Βαλκανίων. Ο σκοπός της παρούσας εργασίας είναι η μελέτη και η παρουσίαση των εκκλησιολογικών και θεολογικών πτυχών του προβλήματος.
description: The emergence of ethnophyletism in the bosom of the Bulgarian Church and its nstrumentalization for the achievement of political goals will deal a devastating blow to the unity of the Orthodox Church and threaten its ecumenical and catholic character. The continuous efforts of the Ecumenical Patriarchate to solve the problem within the framework of the sacred norms and the sacred tradition of the Church, as well as the uncompromising attitude of the Bulgarian pioneers of their ecclesiastical and political emancipation, towards the Mother Church, will lead to the Bulgarian Schism. The Church does not it is - nor can it be - national but supranational. The issue was addressed by the Holy and Great Synod of Constantinople in 1872, which, based on the Gospel and the holy canons, condemned tribalism as a heresy. Thus the Synod saved the prestige and dignity of Orthodoxy, preserving the identity of the Church. The consequences of the rise of nationalism are multidimensional in the Balkans. The purpose of this work is to study and present the ecclesiological and theological aspects of the problem.
The IC133 Water Vapor Maser in the Galaxy M33: A Geometric Distance
Creators: name: Argon, A. L.
name: Greenhill, L. J.
name: Moran, J. M.
name: Reid, M. J.
name: Menten, K. M.
name: Inoue, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the results of a 14 year long VLBI study of proper motions in the IC133 H2O maser source in the galaxy M33. The method of Ordered Motion Parallax was used to model the 3-dimensional structure and dynamics of IC133 and obtain a distance estimate, 800 +/- 180 kpc. Our technique for determining the distance to M33 is independent of calibrations common to other distance indicators, such as Cepheid Period-Luminosity relations, and therefore provides an important check for previous distance determinations.
description: Accepted for publication in the Astrophysical Journal
Additional file 1 of Accuracy of intraoral scans in the mixed dentition: a prospective non-randomized comparative clinical trial
Creators: name: Liczmanski, Konrad
name: Stamm, Thomas
name: Sauerland, Cristina
name: Blanck-Lubarsch, Moritz
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1: Table. P-values of scan time (minutes:seconds) and amount of data (number of polygon points) concerning different patient variables.
Programas Sociais, Mudanças e Condições de Vida na Agricultura Familiar do Vale do Jequitinhonha Mineiro
Creators: name: Ribeiro, Eduardo Magalhães
name: Ayres, Eduardo Barbosa
name: Galizoni, Flávia Maria
name: Almeida, Ana Flávia
name: Pereira, Viviane Guimarães
name: Ribeiro, Eduardo Magalhães
name: Ayres, Eduardo Barbosa
name: Galizoni, Flávia Maria
name: Almeida, Ana Flávia
name: Pereira, Viviane Guimarães
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Vale do Jequitinhonha
subject: public programs
subject: family farming
subject: rural sociology.

description: Vale do Jequitinhonha, located in the northeast of the Minas Gerais State, have been receiving, since the 1960s, a set of public programs, compensation and rural development, which brought significant resources to combat poverty and increase familiar agriculture. Using census data, field research and diagnostics over the region, this article examines some of the results of these programs. It reveals that there was a combination of income streams originated from the public sector and consumption production, explaining substantial changes in the food security, welfare and the consumption pattern of rural populations.
Integracion vertical en el mercado del verdel en el Pais Vasco
Creators: name: Enriquez, Javier
name: Gonzalez, Josu
name: Maza, Arantza Murillas
name: Enriquez, Javier
name: Gonzalez, Josu
name: Maza, Arantza Murillas
Publisher: name: Unknown
Year: 2009
Subjects: subject: Demand and Price Analysis
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Public Economics
subject: mercados integrados
subject: cambio estructural
subject: cointegracion
subject: verdel
subject: integrated markets
subject: structural change
subject: cointegration
subject: mackerel

description: En este trabajo se leeva a cabo un analisis del mercado interior de pescadp fresco en la Comunidad Autonoma del Pais Vasco. En particular, se analizan los precios de una de las principales especies objetivo de la flota de bajura, el verdel o caballa del Atlantico Nordeste, centrandose en el estudio de las relaciones de equilibrio verticales entre los precios alcanzados en los puertos y en el mercado central. Para ello, se aplican distintas tecnicas econometricas utilizadas en el analisis de integracion de mercados, examinandose las relaciones de equilibrio a largo plazo tanto mediante metodos de cointegracion entera como fraccional. Los resultados indican que se trata de un mercado no integrado, describiendo los precios de los niveles analizados-puertos y mercado central- una evolucion independiente. In this paper an analysis of the internal market for fresh fish at the Basque Country is carried out. Particularly, mackerel prices, coming from the inshore sector, are analysed focusing on the study of vertical equilibrium relationships between the prices of fish sold at auction (at ports) and fish sold by the central market. For that purpose, different econometric techniques used in the analysis of the market integration are applied, examining the long term equilibrium relationships by means of both integer and fractional cointegration. The results show that it is a non integrated market, following the series of prices at port and central market an independent evolution.
Concepto y gobernanza internacional de la seguridad alimentaria: de donde venimos y hacia donde vamos
Creators: name: Simon, George-Andre
name: Simon, George-Andre
Publisher: name: Unknown
Year: 2009
Subjects: subject: Food Security and Poverty
subject: seguridad alimentaria
subject: hambre
subject: nutricion
subject: ayuda alimentaria
subject: food security
subject: hunger
subject: nutrition
subject: food aid

description: Le seguridad alimentaria es una expresion que se utiliza con frecuencia en publicaciones y medios de comunicacion. No obstante, su significado varia en gran medida de un lector a otro. A menudo, los conceptos en relacion con el hambre, la hambruna y la seguridad alimentaria son imprecisos y no es extrano usarlos indistintamente. El presente articulo trata de aclarar el concepto de seguridad alimentaria. Como punto de partida, recurre a la definicion aprobada por la Cumbre Mundial sobre la Alimentacion en 1996 y pretende explicar las cuatro dimensiones de la seguridad alimentaria. Para ofrecer una perspectiva dinamica del concepto, el documento repasa los cambios en la percepcion de la seguridad alimentaria en los ultimos 75 anos y analiza la evolucion que se ha producido. Al examinar las herramientas empleadas para reducir la inseguridad alimentaria, el documento reconoce que la de uso mas frecuente ha sido la ayuda alimentaria. Por consiguiente, al repasar los 75 anos de historia de la seguridad alimentaria, suele hacerse referencia a situaciones, instituciones, conferencias y hechos relativos tanto a la seguridad como a la ayuda alimentaria y tambien a la gobernanza de la seguridad alimentaria. Por ultimo, el articulp repasa algunas de las contradicciones y de las esperanzas en el futuro desarrollo de la seguridad alimentaria con vistas a contribuir a la reduccion del sufrimiento humano relacionado con la inseguridad alimentaria. Food security is widely used in publications and by the media. Yet, understanding varies considerably from one reader to another. Often, the concepts surrounding hunger, famine and food security are blurred and these words are often used interchangeably. This paper aims at clarifying the food security concept. It uses as a starting point definition approved by the World Food Summit in 1996 and seeks to explain the four dimensions of food security. In order to provide a dynamic perspective of the concept, the paper reviews the changes in perception of food security over the last 75 years or so and analyzes the evolution which took place. Looking at the tools utilized to reduce food insecurity, the paper recognizes that the most commonly used has been food aid. Therefore, when reviewing the 75 years of history of food security, reference is often made to situations, institutions, conferences and facts that are related to both food security, food aid and also to food security governance. Finally the paper reviews some of the contradictions as well as hopes for future development of food security with a view to contributing to reducing human suffering related to food insecurity.
title: Source apportionment of particulate matter in Styria, Austria
Creators: name: Kirchsteiger, Bernadette
Publisher: name: TU Wien
Year: 2018
Subjects: subject: Analytische Chemie
subject: Umweltanalytik
subject: Feinstaub
subject: Analytical Chemistry
subject: FOS: Chemical sciences
subject: Environmental Analysis
subject: Particulate matter

description: In 2017 large regions of Austria were affected by elevated concentrations of particulate matter. To identify aerosol sources the chemical analysis of quartz fiber filters sampled at four sites in Styria was performed. Three sampling sites were situated in Graz, the fourth sampling site describes a rural area with clearly lower PM concentrations and is located in Vorau. Source apportionment was realized on basis of the macro-tracer approach, which was previously optimized for the region under observation. The major particle sources identified during the whole sampling period were secondary inorganic aerosol (NH4+, NO3- and SO42-), wood burning aerosol, traffic related aerosols (exhaust and abrasion). An alternating predominance of major sources (SIA and wood burning aerosol) can be observed at both sites. Sampling in Vorau took place from August 2016 to September 2017. Measurements describe the situation of ambient air quality of a rural area. The classification of sample pools was carried out to generate representative annual profiles, i.e. to account for elevated and lower concentrations. Secondary inorganic aerosols (SIA) are identified as major source of pollution. The predominance of SIA can be seen during the whole year and is followed by the contribution of wood burning aerosol and not defined organic material (including humic like substances). Investigations in Graz included samples collected from January until March 2017. The classification of pools was carried on the basis of the PM10 concentrations of the sampling site Graz Don Bosco. High polluted pools show a predominance of secondary inorganic aerosol followed by the contribution of wood burning aerosol. Major source of pools with slightly lower concentrations of PM mass are wood burning aerosol. Within the timeline of these pools a clear decreasing trend of wood burning aerosol can be observed. The contribution of secondary inorganic aerosol also decreases while an increasing trend of mineral dust can be seen.
An investigation of the effects of matching attentional draw with utility in computer-based interruption
Creators: name: Gluck, Jennifer Shari
Publisher: name: University of British Columbia
Year: 2010

description: We all experience interruption in our daily lives when something causes a break in our actions, activities, or concentration. The number of channels through which we may interrupt each other has multiplied with the advent of communication and information technology, beginning with the telephone and increasing with email and instant messaging systems. Moreover, technology itself has become a source of interruption through calendar systems, software update reminders, and even battery monitor warnings. Interruption has become pervasive to the point where it is overwhelming. Consequently, research in the Human-Computer Interaction literature has focused largely on the negative effects of interruption. Yet, the fact that we continue to propagate and tolerate computer-based interruption suggests that there is some value associated with it. In this thesis, we explore how interruption can be harnessed for beneficial means by empirically investigating a design guideline that may help to mitigate negative effects: matching the amount of attention attracted by an interruption’s notification signal to the usefulness of the interruption content. In three controlled studies, we investigated the effects of matching attentional draw of notification to interruption utility in terms of annoyance, benefit, workload, and performance. Study 1 examined notification signals in terms of their detection times and established a set of three significantly different notification signals along the spectrum of attentional draw. Study 2 was an initial investigation of matching these different signals to interruptions with different levels of utility. In our final study we compared our strategy of matching attentional draw and utility to the status quo of static notification methods. Our results indicate that interfaces that matched attentional draw to utility were associated with decreased annoyance and an increased perception of benefit compared to interfaces that used a static level of attentional draw. These and other secondary results are discussed, along with design implications and directions for future work. The research presented is an initial step towards understanding and exploiting the benefits of matching attentional draw of notification to the utility of interruption content.