cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Combining remote sensing, habitat suitability models and cellular automata to model the spread of the invasive shrub Ulex europaeus
Creators: name: Gränzig, Tobias
name: Clasen, Anne
name: Fassnacht, Fabian Ewald
name: Cord, Anna
name: Förster, Michael
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Chile
subject: Landsat
subject: Google Earth
subject: GBIF
subject: Maxent
subject: Cellular automata
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: Modeling the past or future spread patterns of invasive plant species is challenging and in an ideal case requires multi-temporal and spatially explicit data on the occurrences of the target species as well as information on the habitat suitability of the areas at risk of being invaded. Most studies either focus on modeling the habitat suitability of a given area for an invasive species or try to model the spreading behavior of an invasive species based on temporally or spatially limited occurrence data and some environmental variables. Here we suggest a workflow that combines habitat suitability maps, occurrence data from multiple time steps collected from remote sensing data, and cellular automata models to first reconstruct the spreading patterns of the invasive shrub Ulex europaeus on the island Chiloé in Chile and then make predictions for the future spread of the species. First, U. europaeus occurrences are derived for four time steps between 1988 and 2020 using remote sensing data and a supervised classification. The resulting occurrence data is combined with occurrence data of the native range of U. europaeus from the GBIF database and selected environmental variables to derive habitat suitability maps using Maxent. Then, cellular automata models are calibrated using the occurrence estimates of the four time steps, the suitability map, and some additional geo-layer containing information about soils and human infrastructure. Finally, a set of calibrated cellular automata models are used to predict the potential spread of U. europaeus for the years 2070 and 2100 using climate scenarios. All individual steps of the workflow where reference data was available led to sufficient results (supervised classifications Overall Accuracy > 0.97; Maxent AUC > 0.85; cellular automata Balanced Accuracy > 0.91) and the spatial patterns of the derived maps matched the experiences collected during the field surveys. Our model predictions suggest a continuous expansion of the maximal potential range of U. europaeus, particularly in the Eastern and Northern part of Chiloé Island. We deem the suggested workflow to be a good solution to combine the static habitat suitability information—representing the environmental constraints—with a temporally and spatially dynamic model representing the actual spreading behavior of the invasive species. The obtained understanding of spreading patterns and the information on areas identified to have a high invasion probability in the future can support land managers to plan prevention and mitigation measures.
Graph-theoretic approach to Bell experiments with low detection efficiency
Creators: name: Xu, Zhen-Peng
name: Steinberg, Jonathan
name: Singh, Jaskaran
name: López-Tarrida, Antonio J.
name: Portillo, José R.
name: Cabello, Adán
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Bell inequality tests where the detection efficiency is below a certain threshold $η_{\rm{crit}}$ can be simulated with local hidden-variable models. Here, we introduce a method to identify Bell tests requiring low $η_{\rm{crit}}$ and relatively low dimension $d$ of the local quantum systems. The method has two steps. First, we show a family of bipartite Bell inequalities for which, for correlations produced by maximally entangled states, $η_{\rm{crit}}$ can be upper bounded by a function of some invariants of graphs, and use it to identify correlations that require small $η_{\rm{crit}}$. We present examples in which, for maximally entangled states, $η_{\rm{crit}} \le 0.516$ for $d=16$, $η_{\rm{crit}} \le 0.407$ for $d=28$, and $η_{\rm{crit}} \le 0.326$ for $d=32$. We also show evidence that the upper bound for $η_{\rm{crit}}$ can be lowered down to $0.415$ for $d=16$ and present a method to make the upper bound of $η_{\rm{crit}}$ arbitrarily small by increasing the dimension and the number of settings. All these upper bounds for $η_{\rm{crit}}$ are valid (as it is the case in the literature) assuming no noise. The second step is based on the observation that, using the initial state and measurement settings identified in the first step, we can construct Bell inequalities with smaller $η_{\rm{crit}}$ and better noise robustness. For that, we use a modified version of Gilbert's algorithm that takes advantage of the automorphisms of the graphs used in the first step. We illustrate its power by explicitly developing an example in which $η_{\rm{crit}}$ is $12.38\%$ lower and the required visibility is $14.62\%$ lower than the upper bounds obtained in the first step. The tools presented here may allow for developing high-dimensional loophole-free Bell tests and loophole-free Bell nonlocality over long distances.
description: 26 pages, 4 figures
title: New precursors for the deposition of Hf02 and ZrO2 by MOCVD and ALD
Creators: name: O'Kane, Ruairi
Publisher: name: University of Liverpool Repository
Year: 2023

description: Zr02 and Hf02 are two high-pemitivity (lC) dielectric oxides that are currently being investigated as alternatives to Si02 as the dielectric insulating layer in subO. lflm CMOS technolqgy and capacitor layers in .the next generation DRAM. Metal organic chemical vapour deposition (MOCVD) and atomic layer deposition (ALD) are promising techniques for the deposition of the these high-lC dielectric oxides. This study describes the preparation ofnew metal-alkoxides, metallocenes . and ansa-bridged metilllocenes of zirconium and hafnium for use as precursors in MOCVD and ALD. The structure of the metal-alkoxides [Zr(OIBu)2(dmop)2] (1), [Hf(OIBu)2(dmop)2] (2), [Hf(dmop)4] (3), [Hf(OIBu)2(dmoph)2] (4), [Hf2(flr O)(dmoph)6] (7), [Zr(mph)4] (8), [Hf(mph)4] (9), [Hf2(mph)6][(CH3)2NH2] (10) have been determined by single crystal X-ray diffraction (XRD). The preparation of a series of metallocenes of hafnium is described [Cp2HfMe(OMe)] (11), [Cp2HfMe(OEt)] (12), [Cp2HfMe(Oipr)] (13), [Cp2Hf(OMe)2] (14), [Cp2Hf(OEt)2] (15), [Cp2Hf(Oipr)2] (16), [Cp2Hf(OIBu)2] (17), [Cp2Hf(mmp)2] (18), [(Me-Cp)2HfMe(OMe)] (19), [(Me-Cp)2HfMe(OEt)] (20), [(MeCp) 2HfMe(Oipr)] (21), [(Me-Cp)2HfMe(OIBu)] (22), [(Me-Cp)2HfMe(mmp)] (23) and the structure of [Hf(T\5-C5~)2Cl(CH3)] (24) has been determined by single crystal XRD. Chapter 4 describes the synthesis of the. ansa-bridged and hafnium [Zr{H2C(C5~)2}Me2] (25), [Hf{H2C(C5~)2}Me2] (26), [Zr{(CH3)C(C5~)}(CH3)2] (27), and [Hf{(CH3)C(C5~)}(CH3)2] (28). This project involves the investigation of a range new zirconium and hafnium alkoxides and metallocenes with the aim of developing improved MOCVD . and ALD precursors.
Drivers of change and conservation needs for vertebrates in drylands: an assessment from global scale to Sahara-Sahel wetlands
Creators: name: Brito, J. C.
name: Del Barrio, G.
name: Stellmes, Marion
name: Pleguezuelos, J. M.
name: Saarinen, J.
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: Biodiversity threats
subject: climate change
subject: conservation actions
subject: land degradation
subject: research needs
subject: sustainable human development
subject: 500 Naturwissenschaften und Mathematik::590 Tiere (Zoologie)::590 Tiere (Zoologie)

description: Drylands range across more than half of the global terrestrial area and harbour about a quarter of continental vertebrate species, many of them endemic. However, this fauna is being increasingly threatened, in particular the one that inhabits deserts, one of the last biomes on earth. This work tracks the most relevant global change drivers acting on drylands, especially in deserts and arid regions, the conservation actions being developed, and the research needs for vertebrate conservation, following IUCN standardised classification schemes. Using the Sahara-Sahel wetlands as case study, it is provided a detailed examination of these aspects to support regional biodiversity conservation and human welfare. Deserts and arid regions are threatened by the synergistic effects of increasing development of urban areas, agriculture, energy production, mining, transportation and service corridors, resulting in pollution, invasive species, human intrusions and disturbance, biological resource overuse and in general, natural system modifications. In addition, climate change together with social underdevelopment of many desert-range countries places the mitigation of threat factors in a large and complex web of global-local societal challenges. Conservation actions targeting land/water and species protection and management, as well as education, awareness, capacity building, and legislation measures to increase livelihood development, are being developed. Additional research efforts are need to enhance biodiversity conservation planning, monitoring biodiversity and land-degradation status (based on Essential Biodiversity Variables), and quantification of socioeconomic factors associated with sustainable use of natural resources and human development. Sahara-Sahel wetlands are important life-support systems for both humans and vertebrates, the last vulnerable to listed global threats. They offer framework scenario to revert current environmental and societal challenges in deserts. Long-term conservation of desert vertebrate biodiversity requires appropriate policy instruments to promote sustainable use of natural resources. Raising environmental alertness within local communities of uniqueness of desert biodiversity is needed to promote policy change.
Relationship between circulating levels of RANTES (regulated on activation, normal T-cell expressed, and secreted) and carotid plaque characteristics: the Atherosclerosis Risk in Communities (ARIC) Carotid MRI Study
Creators: name: Mosley, Thomas H.
name: Virani, Salim S.
name: Gonzalez, Franklyn
name: Chambless, Lloyd E.
name: Wasserman, Bruce A.
name: Hoogeveen, Ron
name: Boerwinkle, Eric
name: Nambi, Vijay
name: Coresh, Josef
name: Ballantyne, Christie M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: To assess the relationship between regulated on activation, normal T-cell expressed and secreted (RANTES) and carotid atherosclerotic plaque burden and plaque characteristics.
Europa im Fluss. Fotografische und künstlerische Blicke auf die Donau
Creators: name: Holzer, Anton
Publisher: name: Universität Regensburg
Year: 2022
Subjects: subject: 700 Künste, Bildende Kunst allgemein

description: In vielen fotografischen und künstlerischen Projekten löst sich die große Erzählung der Donau als Reisebegleiter auf und zerfällt zunehmend in – sich oft überschneidende und überlagernde – einzelne Bilder und Geschichten. Dieser Zerfallsprozess hat eine längere Geschichte, die sehr eng mit den politischen und gesellschaftlichen Narrativen zu tun hat, in die der Fluss eingebettet ist. Ich werde im Folgenden zeigen, dass diese diagnostizierte Auflösung der großen Donau-Erzählung eng mit den sich ändernden politisch-gesellschaftlichen Konjunkturen des Donauraums und des europäischen Kontinents verknüpft ist. Die künstlerischen Reflexionen über die Donau verweisen also auch auf größere Zusammenhänge. Unter anderem beschäftigen sie sich mit der Frage, wie die Bilder des Flusses mit einer gesamteuropäischen Metaphorik verbunden sind.
Common carotid artery intima-media thickness is as good as carotid intima-media thickness of all carotid artery segments in improving prediction of coronary heart disease risk in the Atherosclerosis Risk in Communities (ARIC) study
Creators: name: Nambi, V.
name: Mosley, T.
name: Chambless, L.
name: He, M.
name: Boerwinkle, E.
name: Ballantyne, C. M.
name: Folsom, A. R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Carotid intima–media thickness (CIMT) and plaque information can improve coronary heart disease (CHD) risk prediction when added to traditional risk factors (TRF). However, obtaining adequate images of all carotid artery segments (A-CIMT) may be difficult. Of A-CIMT, the common carotid artery intima–media thickness (CCA-IMT) is relatively more reliable and easier to measure. We evaluated whether CCA-IMT is comparable to A-CIMT when added to TRF and plaque information in improving CHD risk prediction in the Atherosclerosis Risk in Communities (ARIC) study.
title: A mathematician's introduction to transformers and large language models
Creators: name: Penke, Carolin
Publisher: name: Accelerating Devices Lab
Year: 2022
Subjects: Workshop
OpenGPTX

description: The field of Natural Language Processing (NLP) has been undergoing a revolution in recent years. Large-scale language models (LLMs), most notably a series of Generative Pre-trained Transformers (GPTs), exceeded all expectations in benchmark scenarios and real life applications such as text generation, translation, question-answering and summarization. The engine of the NLP revolution is the so-called attention mechanism, which now allows to process longer sentences without "forgetting" important words. This mechanism is implemented in form of a series of matrix products and lends itself to intense parallelization. The pre-training of transformers requires great computational resources and is one example of the increasing AI workload of large High Performance Computing (HPC) facilities. OpenGPT-X is a joint effort of 10 partners from science and industry to train and provide access to an open LLM based in Europe in order to guarantee digital and economic sovereignty. Within the project, the pre-training of the LLM is performed at the J�lich Supercomputing centre. This blog post aims to give an introduction to the state of current large language models, the OpenGPT-X project, and the transformer neural network architecture for people unfamiliar with the subject with a working knowledge of linear algebra.
Characterizing the Star Formation of the Low-Mass SHIELD Galaxies from Hubble Space Telescope Imaging
Creators: name: McQuinn, Kristen. B. W.
name: Cannon, John M.
name: Dolphin, Andrew E.
name: Skillman, Evan D.
name: Haynes, Martha P.
name: Simones, Jacob E.
name: Salzer, John J.
name: Adams, Elizabeth A. K.
name: Elson, Ed C.
name: Giovanelli, Riccardo
name: Ott, Jürgen
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Survey of HI in Extremely Low-mass Dwarfs (SHIELD) is an on-going multi-wavelength program to characterize the gas, star formation, and evolution in gas-rich, very low-mass galaxies that populate the faint end of the galaxy luminosity function. The galaxies were selected from the first ~10% of the HI ALFALFA survey based on their low HI mass and low baryonic mass. Here, we measure the star-formation properties from optically resolved stellar populations for 12 galaxies using a color-magnitude diagram fitting technique. We derive lifetime average star-formation rates (SFRs), recent SFRs, stellar masses, and gas fractions. Overall, the recent SFRs are comparable to the lifetime SFRs with mean birthrate parameter of 1.4, with a surprisingly narrow standard deviation of 0.7. Two galaxies are classified as dwarf transition galaxies (dTrans). These dTrans systems have star-formation and gas properties consistent with the rest of the sample, in agreement with previous results that some dTrans galaxies may simply be low-luminosity dIrrs. We do not find a correlation between the recent star-formation activity and the distance to the nearest neighboring galaxy, suggesting that the star-formation process is not driven by gravitational interactions, but regulated internally. Further, we find a broadening in the star-formation and gas properties (i.e., specific SFRs, stellar masses, and gas fractions) compared to the generally tight correlation found in more massive galaxies. Overall, the star-formation and gas properties indicate these very low-mass galaxies host a fluctuating, non-deterministic, and inefficient star-formation process.
description: 12 pages, 12 figures, 2 tables
Διαδίκτυο των Πραγμάτων - Internet of Things IoTs
Creators: name: Μπέκος, Χρήστος
Publisher: name: Πανεπιστήμιο Πελοποννήσου
Year: 2022
Subjects: subject: Εκπαίδευση
subject: εφαρμογές σε διάφορους τομείς
subject: πρωτόκολλα επικοινωνίας
subject: τεχνολογίες πληροφοριών και επικοινωνίας
subject: ΙοΤ
subject: Ασφάλεια

description: Μ.Δ.Ε. 59
description: Διανύουμε μία εποχή στο πεδίο της τεχνολογίας και ιδιαίτερα στο χώρο των υπολογιστών η οποία αποκαλείται το «Διαδίκτυο των Πραγμάτων(Internet of Things IoT)». Το διαδίκτυο των ευφυών πραγμάτων όπως αλλιώς ονομάζεται, παρέχει δυνατότητες που είναι τεράστιες και αξεπέραστες. Το ΙοΤ παρουσιάζεται σαν ένα είδος νευρωνικού δικτύου που αποτελείται από συνδεδεμένα «έξυπνα πράγματα» και τα οποία χρησιμοποιούνται στη καθημερινή ζωή μας. Αποτελείται από έξυπνες συσκευές οι οποίες επιδρούν και επικοινωνούν με άλλες συσκευές με αποτέλεσμα να παράγεται ένας μεγάλος όγκος από δεδομένα τα οποία μπορούν να ελέγξουν αλλά αντικείμενα προκειμένου να διευκολύνουν και να κάνουν ασφαλέστερη τη ζωή μας. Σκοπός της παρούσας εργασίας, είναι η παρουσίαση μιας όσο το δυνατόν πιο ολοκληρωμένης βιβλιογραφικής ανασκόπησης του βιβλίου «IoT Fundamentals: Networking Technologies, Protocols, and Use Cases for the Internet of Things (Copyright© 2017 Cisco Systems, Inc.)», με βάση τις πρόσφατες εξελίξεις σε διάφορούς τομείς της τεχνολογίας. Αποτελείται από 13 κεφάλαια. Στην αρχή κάθε κεφαλαίου δίνεται μια συνοπτική περιγραφή του και μια ανάλυση των τεχνολογιών επικοινωνίας που περιλαμβάνει βασισμένες σε IoT. Καλύπτονται όσο το δυνατόν περισσότεροι κλάδοι στους οποίους μπορούν να υλοποιηθούν. Επίσης, παρουσιάζονται οι τρέχουσες προκλήσεις που πρέπει να αντιμετωπίσει η τεχνολογία για να μπορέσει να ανταπεξέλθει στην υιοθέτησή της σε όλους αυτούς του τομείς.
Orthostatic hypotension and novel blood pressure-associated gene variants: Genetics of Postural Hemodynamics (GPH) Consortium
Creators: name: Levy, Daniel
name: Mattace-Raso, Francesco
name: Liu, Chunyu
name: Psaty, Bruce M.
name: Almgren, Peter
name: Rice, Kenneth M.
name: Uitterlinden, Andre
name: Hofman, Albert
name: Brody, Jennifer
name: Melander, Olle
name: Boerwinkle, Eric
name: Hedblad, Bo
name: Newton-Cheh, Christopher
name: Verwoert, Germaine C.
name: Fedorowski, Artur
name: Couper, David
name: Rotter, Jerome I.
name: Wang, Thomas J.
name: Witteman, Jacqueline
name: Rose, Kathryn M.
name: Larson, Martin G.
name: Sjögren, Marketa
name: Franceschini, Nora
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: AimsOrthostatic hypotension (OH), an independent predictor of mortality and cardiovascular events, strongly correlates with hypertension. Recent genome-wide studies have identified new loci influencing blood pressure (BP) in populations, but their impact on OH remains unknown.Methods and resultsA total of 38 970 men and women of European ancestry from five population-based cohorts were included, of whom 2656 (6.8%) met the diagnostic criteria for OH (systolic/diastolic BP drop ≥20/10 mmHg within 3 min of standing). Thirty-one recently discovered BP-associated single nucleotide polymorphisms (SNPs) were examined using an additive genetic model and the major allele as referent. Relations between OH, orthostatic systolic BP response, and genetic variants were assessed by inverse variance-weighted meta-analysis. We found Bonferroni adjusted (P < 0.0016) significant evidence for association between OH and the EBF1 locus (rs11953630, per-minor-allele odds ratio, 95% confidence interval: 0.90, 0.85–0.96; P = 0.001), and nominal evidence (P < 0.05) for CYP17A1 (rs11191548: 0.85, 0.75–0.95; P = 0.005), and NPR3-C5orf23 (rs1173771: 0.92, 0.87–0.98; P= 0.009) loci. Among subjects not taking BP-lowering drugs, three SNPs within the NPPA/NPPB locus were nominally associated with increased risk of OH (rs17367504: 1.13, 1.02–1.24; P = 0.02, rs198358: 1.10, 1.01–1.20; P = 0.04, and rs5068: 1.22, 1.04–1.43; P = 0.01). Moreover, an ADM variant was nominally associated with continuous orthostatic systolic BP response in the adjusted model (P= 0.04).ConclusionThe overall association between common gene variants in BP loci and OH was generally weak and the direction of effect inconsistent with resting BP findings. These results suggest that OH and resting BP share few genetic components.
Quasi-perfect Lee Codes of Radius 2 and Arbitrarily Large Dimension
Creators: name: Camarero, Cristóbal
name: Martínez, Carmen
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: Discrete Mathematics (cs.DM)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: A construction of 2-quasi-perfect Lee codes is given over the space $\mathbb Z_p^n$ for $p$ prime, $p\equiv \pm 5\pmod{12}$ and $n=2[\frac{p}{4}]$. It is known that there are infinitely many such primes. Golomb and Welch conjectured that perfect codes for the Lee-metric do not exist for dimension $n\geq 3$ and radius $r\geq 2$. This conjecture was proved to be true for large radii as well as for low dimensions. The codes found are very close to be perfect, which exhibits the hardness of the conjecture. A series of computations show that related graphs are Ramanujan, which could provide further connections between Coding and Graph Theories.
Η αγωγή του άρθρου 6 παρ. 2 Ν. 2664/1998 κατά του Ελληνικού Δημοσίου
Creators: name: Σούφλας, Κωνσταντίνος Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Χρησικτησία
Ελληνικό Δημόσιο
Κυριότητα
Adverse possession
Greek State
Demesne

description: Σκοπός της παρούσας εργασίας ήταν η παρουσίαση του θεσμού της Χρησικτησίας στα Δημόσια Κτήματα υπό το καθεστώς του ο Κτηματολογικού Δίκαιου. Στο πρώτο μέρος γίνεται μια αναφορά στις βασικές έννοιες, τις διαδικασίες και τα ένδικα βοηθήματα του Κτηματολογικού Δικαίου. Αναλύονται τα δυο βασικά ένδικα βοηθήματα, η αγωγή του αρ. 6 παρ. 2 και η αίτηση του αρ. 6 παρ. 3 και η μεταξύ τους σχέση, παρόλο που ο νόμος πλέον ρητά έχει εξαιρέσει από την παράγραφο 3 την περίπτωση που ο δικαιούχος επικαλείται ως τίτλο κτήσης την έκτακτη χρησικτησία. Στο δεύτερο μέρος η εργασία επικεντρώνεται σε ζητήματα χρησικτησίας των Δημόσιων Κτημάτων υπό το καθεστώς του Κτηματολογικού Δικαίου. Παρουσιάζεται το πως διαμορφώνεται ο θεσμός της Χρησικτησίας στο Κτηματολογικό Δίκαιο, υπό τον Αστικό Κώδικα και το άρθρο 4 ν. 3127/2003, αλλά και το διαφορετικό νομικό καθεστώς που ισχύει σε κάθε γεωγραφική περιφέρεια του Ελληνικού Κράτους.
description: The aim of the present task was the presentation of the ordinance of Adverse possession in Public Lands under the regime of Cadastral Law. In the first part, a reference is made to the basic concepts, procedures and remedies of Cadastral Law. The two main remedies are analyzed, the lawsuit of article 6 par. 2 and the motion of article 6 par. 3 and the relationship between them, even though the law has now expressly excluded from paragraph 3 the case where the freeholder invokes Adverse possession as a title of his demesne. In the second part, the task focuses on questions of the possession of Public Lands under the regime of Cadastral Law. It is presented how the ordinance of Adverse possession is formed in Cadastral Law, under the Civil Code and article 4 of Law 3127/2003, but also the different legal regime that be in effect in each geographical region of the Greek State.
Efficient Scheme of Experimental Quantifying non-Markovianity in High-Dimension Systems
Creators: name: Dong, S. -J.
name: Liu, B. -H.
name: Sun, Y. -N.
name: Han, Y. -J.
name: Guo, G. -C.
name: He, Lixin
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The non-Markovianity is a prominent concept of the dynamics of the open quantum systems, which is of fundamental importance in quantum mechanics and quantum information. Despite of lots of efforts, the experimentally measuring of non-Markovianity of an open system is still limited to very small systems. Presently, it is still impossible to experimentally quantify the non-Markovianity of high dimension systems with the widely used Breuer-Laine-Piilo (BLP) trace distance measure. In this paper, we propose a method, combining experimental measurements and numerical calculations, that allow quantifying the non-Markovianity of a $N$ dimension system only scaled as $N^2$, successfully avoid the exponential scaling with the dimension of the open system in the current method. After the benchmark with a two-dimension open system, we demonstrate the method in quantifying the non-Markovanity of a high dimension open quantum random walk system.
Statin therapy and long-term adverse limb outcomes in patients with peripheral artery disease: insights from the REACH registry
Creators: name: Ohman, E. Magnus
name: Creager, Mark A.
name: Banerjee, Subhash
name: Baumgartner, Iris
name: Smith, Sidney C.
name: Elbez, Yedid
name: Bhatt, Deepak L.
name: Goto, Shinya
name: Kumbhani, Dharam J.
name: Cannon, Christopher P.
name: Sritara, Piyamitr
name: Steg, Ph. Gabriel
name: Eagle, Kim A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Due to a high burden of systemic cardiovascular events, current guidelines recommend the use of statins in all patients with peripheral artery disease (PAD). We sought to study the impact of statin use on limb prognosis in patients with symptomatic PAD enrolled in the international REACH registry.
Participatory network mapping of an emergent social network for a regional transition to a low-carbon and just society on the Dingle Peninsula
Creators: name: Boyle, Evan
name: Gallachóir, Brian Ó
name: Mullally, Gerard
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Computational Biology

description: The paper develops a methodological approach that acts as a tool for active change agents working in community and just transition contexts to increase their capacity to engage a wider public in planning. An innovative contribution is made to the literature through the development of a participatory action research (PAR) based approach to social network analysis using a participatory mapping method with relation to sustainable transitions. The method comprises a participatory network mapping approach, adapted from the Net-Map toolkit, which is applied to a multi-stakeholder approach to realising a regional sustainability transition in the Republic of Ireland. Dingle Peninsula 2030 is an initiative aiming to transition a geographic region in the South West of Ireland to a low-carbon society by 2030 across the sectors of energy, agriculture, transport, education, employment, marine and tourism. Due to the scope of the overall project, a diverse range of stakeholders are involved. The method developed is used to undertake a qualitative collaborative social network analysis. The paper focuses on method, by analysing and reflecting upon the use of this participatory approach, in the initial stages of the overall project, in addressing complex sustainability and just transition challenges as they are revealed through a multi-stakeholder approach. Within this, the themes of participatory justice, social learning and visualising complexity are explored; and benefits and future improvements are outlined through reflections from both the researcher and the participant community.
Thermalization of interacting quasi-one-dimensional systems
Creators: name: Panfil, Miłosz
name: Gopalakrishnan, Sarang
name: Konik, Robert M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Many experimentally relevant systems are quasi-one-dimensional, consisting of nearly decoupled chains. In these systems, there is a natural separation of scales between the strong intra-chain interactions and the weak interchain coupling. When the intra-chain interactions are integrable, weak interchain couplings play a crucial part in thermalizing the system. Here, we develop a Boltzmann-equation formalism involving a collision integral that is asymptotically exact for any interacting integrable system, and apply it to develop a quantitative theory of relaxation in coupled Bose gases in the experimentally relevant Newton's cradle setup. We find that relaxation involves a broad spectrum of timescales. We provide evidence that the Markov process governing relaxation at late times is gapless; thus, the approach to equilibrium is generally non-exponential, even for spatially uniform perturbations.
description: v2: improved presentation, 6 pages + 15 pages of supplemental materials
Εκπαιδευτική Ρομποτική
Creators: name: Τσούρδη, Μαρία
Publisher: name: Πανεπιστήμιο Πελοποννήσου
Year: 2023
Subjects: subject: Εκπαιδευτική Ρομποτική, λογισμικό Tinkercad, μικροελεγκτής Arduino, διδακτικά σενάρια

description: Μ.Δ.Ε. 74
description: Στις μέρες μας παρατηρούμε ότι οι μαθητές του Γυμνασίου είναι πλέον πολύ εξοικειωμένοι με τη χρήση των ηλεκτρονικών υπολογιστών, ενώ δείχνουν μεγάλο ενδιαφέρον για το διαδίκτυο, για λογισμικά γενικής χρήσης και κυρίως για τα ηλεκτρονικά παιχνίδια. Επομένως, θα ήταν αναμενόμενο, το μάθημα της πληροφορικής να ήταν το αγαπημένο μάθημα των περισσότερων μαθητών, το πιο ενδιαφέρον και πιο κατανοητό για αυτούς. Παρ’όλααυτάδενισχύεικάτιτέτοιο. Τομάθημα της πληροφορικής στο Γυμνάσιο περιέχει έννοιες που δυσκολεύονται να κατανοήσουν οι μαθητές και ο προγραμματισμός που τους διδάσκεται τον αντιλαμβάνονται ως μια δύσκολη, κουραστική και χωρίς σημασία εργασία. Κατά συνέπεια, από τα πρώτα μαθήματα, οι μαθητές χάνουν το ενδιαφέρον τους για το μάθημα της πληροφορικής. Εντούτοις, αρκετές έρευνες υποστηρίζουν ότι η διδασκαλία της ρομποτικής είναι κατάλληλη για τη διδασκαλία βασικών εννοιών της πληροφορικής και του προγραμματισμού στους μαθητές, ανεξάρτητα από την ηλικία τους και το υπόβαθρο τους. Ταυτόχρονα, αποτελεί έναν τρόπο ενθάρρυνσης της μάθησης, καθώς οι μαθητές αντιμετωπίζουν τη ρομποτική ως παιχνίδι και όχι ως εργαλείο μάθησης. Στην παρούσα εργασία υλοποιείται μια διαφορετική προσέγγιση για τη διδασκαλία των βασικών δομών προγραμματισμού και γενικά της πληροφορικής που διδάσκεται στο Γυμνάσιο. Παρουσιάζονται σενάρια μαθήματος για την επίτευξη συγκεκριμένων διδακτικών στόχων, χρησιμοποιώντας το δωρεάν διαδικτυακό λογισμικό Tinkercad. Ο σκοπός των διδακτικών σεναρίων είναι να βοηθήσουν τον εκπαιδευτικό να διδάξει προγραμματισμό και βασικές έννοιες της πληροφορικής με έναν τρόπο ελκυστικό και κατανοητό για τους μαθητές. Να ενθαρρύνουν τους μαθητές να ανακαλύψουν πως η τεχνολογία λειτουργεί στην πραγματικήζωή,πωςουπολογιστήςλειτουργείμέσααπότονσχεδιασμόκαιτηνκατασκευήέργων ρομποτικής.
Alcohol consumption and risk of heart failure: the Atherosclerosis Risk in Communities Study
Creators: name: Shah, A. M.
name: Rosamond, W.
name: Aguilar, D.
name: Goncalves, A.
name: Jhund, P. S.
name: Solomon, S. D.
name: Deswal, A.
name: Cheng, S.
name: Claggett, B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Alcohol is a known cardiac toxin and heavy consumption can lead to heart failure (HF). However, the relationship between moderate alcohol consumption and risk for HF, in either men or women, remains unclear.
A finite element method for the quasiclassical theory of superconductivity
Creators: name: Seja, Kevin Marc
name: Lofwander, Tomas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The Eilenberger-Larkin-Ovchinnikov-Eliashberg quasiclassical theory of superconductivity is a powerful method enabling studies of a wide range of equilibrium and non-equilibrium phenomena in conventional and unconventional superconductors. We introduce here a finite element method, based on a discontinuous Galerkin approach, to self-consistently solve the underlying transport equations for general device geometries, arbitrary mean free path and symmetry of the superconducting order parameter. We present results on i) the influence of scalar impurity scattering on phase crystals in $d$-wave superconducting grains at low temperatures and ii) the current flow and focusing in $d$-wave superconducting weak links, modeling recent experimental realizations of grooved high-temperature superconducting Dayem bridges. The high adaptability of this finite element method for quasiclassical theory paves the way for future investigations of superconducting devices and new physical phenomena in unconventional superconductors.
description: 14 pages, 11 figures
Συσχέτιση του βάρους του παραθυρεοειδούς αδένα και της προεγχειρητικής τιμής της παραθορμόνης σε πρωτοπαθή υπερπαραθυρεοειδισμό»
Creators: name: Στεφάνου, Στέφανος Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Βάρος παραθυρεοειδούς αδένα
Προεγχειρητική τιμή παραθορμόνης
Συσχέτιση
Parathyroid gland weight
Preoperative PTH
Correlation

description: Ο πρωτοπαθής υπερπαραθυρεοειδισμός είναι μια διαδεδομένη νόσος και η παραθυρεοειδεκτομή αποτελεί την θεραπεία εκλογής στους ασθενείς αυτούς. Η ικανότητα πρόβλεψης του αναμενόμενου βάρους του αδενώματος με βάση τις προεγχειρητικές τιμές της παραθορμόνης των ασθενών θα μπορούσε να βελτιώσει τα ποσοστά ίασης σε μια ελάχιστα επεμβατική προσέγγιση. Σκοπός της μελέτης αυτής είναι η ανεύρεση συσχέτισης μεταξύ της προεγχειρητικής τιμής της παραθορμόνης και του βάρους του αδενώματος. Είναι μια αναδρομική μελέτη 212 ασθενών, με πρωτοπαθή υπερπαραθυρεοειδισμό που χειρουργήθηκαν για αυτό και η ιστοπαθολογική έκθεση έδειξε την παρουσία μονήρους αδενώματος. Τα αποτελέσματα έδειξαν ισχυρή συσχέτιση της τιμής της παραθορμόνης πριν την έναρξη της χειρουργικής επέμβασης, και ενώ ο ασθενής είναι διασωληνωμένος, με το βάρος του αδενώματος του παραθυρεοειδούς αδένα. Θα μπορούσε αυτό το αποτέλεσμα να αποτελέσει έναν ακόμη δείκτη για την ανεύρεση και επιβεβαίωση του παθολογικού παραθυρεοειδούς αδένα, μαζί με όλες τις απαραίτητες απεικονιστικές εξετάσεις για τον προσδιορισμό του υπερλειτουργικού παραθυρεοειδούς αδένα.
description: Primary hyperparathyroidism is a widespread disease and parathyroidectomy is the treatment of choice in these patients. Predicting the capacity of the expected adenoma weight based on patients' preoperative parathyroid hormone values could improve rates in a minimally invasive approach. The aim of this study was to find a correlation between the preoperative value of parathormone and the weight of the adenoma. It is a retrospective study of 212 patients with primary hyperparathyroidism who underwent surgery for it and the histopathological report showed the presence of solitary adenoma. The results showed a strong correlation between the price of parathyroid hormone before the start of surgery, and while the patient is intubated, with the weight of the parathyroid adenoma. This result could be another indicator for the detection and confirmation of the abnormal parathyroid gland, together with all the necessary imaging examinations to determine the hyperfunctional parathyroid gland.
Association between land surface temperature and green volume in Bochum, Germany
Creators: name: Schmidt, Pauline
name: Lawrence, Bryce T.
Publisher: name: TU Dortmund
Year: 2022
Subjects: subject: Climate change
subject: Green volume
subject: Heat island
subject: Heat waves
subject: Land surface temperature
subject: Surface heat island
subject: 710
subject: Bodenbedeckung
subject: Grünfläche
subject: Stadtklima
subject: Hitze
subject: Klimaänderung
subject: Bodentemperatur

description: Average temperatures continue to rise throughout the world due to climate change and, thus, also in Europe, often occurring as heat waves. The negative effects of climate change-related heat waves can be observed, especially in urban areas where land sealing is the greatest and so is population density. Past studies have indicated that green volume can provide climate improvement by balancing humidity and regulating temperature. This study aims to estimate the distribution of surface heat islands and green volume and test the relationship between these variables in a case study of Bochum, Germany. A method to develop a temporally longitudinal 30-m Landsat 8-based land surface temperature (LST) analysis and 30-m LiDAR-based green volume dataset are presented, and their relationship is tested using Pearson’s correlation (n = 148,204). The results show that heat islands are moderately negatively correlated with green volume (r = −0.482; p < 0.05), LST can vary as much as 28 degrees °C between heat islands and densely vegetated areas, and the distribution is heterogeneous across Bochum.
description: Sustainability;14(21)
Spectra of barium, radium, and element 120; application of the combined correlation potential, singles-doubles, and configuration interaction ab initio method
Creators: name: Ginges, J. S. M.
name: Dzuba, V. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We apply a version of the recently developed approach combining the correlation potential, linearized singles-doubles coupled-cluster, and the configuration interaction methods to the spectra of the heavy alkaline earths barium, radium, and element 120. Quantum electrodynamics radiative corrections are included. We have found unprecedented agreement between ab initio theory and experiment for the spectra of barium and radium, and we make accurate predictions for missing and unreliable data for all three atoms.
description: 9 pages
Έξυπνο Δημόσιο Κτίριο Μελέτη περίπτωσης: Έξυπνος φωτισμός στις αίθουσες πολλαπλών χρήσεων του Πνευματικού Κέντρου του Δήμου Τρίπολης
Creators: name: Αναγνωστοπούλου, Δήμητρα
Publisher: name: Πανεπιστήμιο Πελοποννήσου
Year: 2023
Subjects: subject: Έξυπνο κτίριο
subject: Δημόσιο κτίριο
subject: Αυτοματισμοί φωτισμού
subject: Έξυπνοι χώροι συνάθροισης κοινού

description: Μ.Δ.Ε. 60
description: Τα τελευταία χρόνια παρατηρείται ραγδαία αύξηση εφαρμογής καινοτόμων τεχνολογιών στον τομέα των έξυπνων κτιρίων, γεγονός που τυγχάνει όλο και μεγαλύτερης αποδοχής από τους χρήστες.Τα έξυπνα κτίρια, ως βασικά δομικά στοιχεία των έξυπνων πόλεων, δεν αρκούνται στην υλοποίηση αυτοματισμών. Αντιθέτως, οικοδομούν την ευφυΐα τους εστιάζοντας στον τρόπο χρήσης και διαχείρισης της τεχνολογίας με σκοπό τη μείωση της καταναλισκόμενης ενέργειας και την εξασφάλιση άνεσης, ασφάλειας και συνολικότερης ευημερίας για τους πολίτες. Ανάμεσα στις πολυάριθμες κτιριακές εφαρμογές των έξυπνων τεχνολογιών, κυρίαρχο ρόλο διαδραματίζει η εγκατάσταση φωτισμού. Αυτό συμβαίνει αφενός διότι πρόκειται για εγκατάσταση υψηλής κατανάλωσης ενέργειας και αφετέρου επειδή η εξέλιξη της τεχνολογίας στον τομέα του φωτισμού υπήρξε αλματώδης τις τελευταίες δεκαετίες. Στην παρούσα εργασία προτείνεται η υλοποίηση έξυπνης φωτιστικής εγκατάστασης σε κτίριο που ανήκει σε δημόσιο φορέα και συγκεκριμένα μελετάται ο φωτισμός στην αίθουσα διοργάνωσης συνεδρίων και στην αίθουσα διοργάνωσης εκθέσεων του Πνευματικού Κέντρου του Δήμου Τρίπολης. Αρχικά διερευνώνται στη βιβλιογραφία τα προσδοκώμενα οφέλη των έξυπνων εγκαταστάσεων φωτισμού σε έξυπνες πόλεις σε ότι αφορά συγκεκριμένους στόχους όπως στην οπτική άνεση των χρηστών, στην κατανάλωση ενέργειας, στην εξοικονόμηση πόρων και στην αισθητική αρτιότητα του αποτελέσματος. Ακολουθεί αποτύπωση της υφιστάμενης κατάστασης και παρουσίαση των τεχνικών και λειτουργικών επιλογών της νέας φωτιστικής πρότασης. Η συγκριτική ανάλυση της νέας φωτιστικής πρότασης σε σχέση με τους καθορισμένους στόχους οδηγεί στο συμπέρασμα ότι είναι μείζονος σημασίας έργο ο εκσυγχρονισμός των συστημάτων φωτισμού για τα δημόσια κτίρια, ειδικότερα δε για αυτά που λειτουργούν ως χώροι συνάθροισης κοινού. Τέλος επισημαίνεται ότι απαιτείται ολιστική προσέγγιση στη διαχείριση των δημοσίων κτιρίων που υιοθετούν έξυπνες τεχνολογίες, προκειμένου να επιλέγονται οι IoT εφαρμογές που θα βελτιώσουν συνολικά και ουσιαστικά την ποιότητα ζωής των πολιτών.
A Simple Adjustment for Bandwidth Snooping
Creators: name: Armstrong, Timothy B.
name: Kolesár, Michal
Publisher: name: arXiv
Year: 2014
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Kernel-based estimators such as local polynomial estimators in regression discontinuity designs are often evaluated at multiple bandwidths as a form of sensitivity analysis. However, if in the reported results, a researcher selects the bandwidth based on this analysis, the associated confidence intervals may not have correct coverage, even if the estimator is unbiased. This paper proposes a simple adjustment that gives correct coverage in such situations: replace the normal quantile with a critical value that depends only on the kernel and ratio of the maximum and minimum bandwidths the researcher has entertained. We tabulate these critical values and quantify the loss in coverage for conventional confidence intervals. For a range of relevant cases, a conventional 95% confidence interval has coverage between 70% and 90%, and our adjustment amounts to replacing the conventional critical value 1.96 with a number between 2.2 and 2.8. Our results also apply to other settings involving trimmed data, such as trimming to ensure overlap in treatment effect estimation. We illustrate our approach with three empirical applications.
description: 54 pages and a 45 page supplement
On the multi-stage shortest path problem under distributional uncertainty
Creators: name: Ketkov, Sergey S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In this paper we consider an ambiguity-averse multi-stage network game between a user and an attacker. The arc costs are assumed to be random variables that satisfy prescribed first-order moment constraints for some subsets of arcs and individual probability constraints for some particular arcs. The user aims at minimizing its cumulative expected loss by traversing between two fixed nodes in the network, while the attacker's objective is to maximize the user's expected loss by selecting a distribution of arc costs from the family of admissible distributions. In contrast to most of the related studies, both the user and the attacker can dynamically adjust their decisions at particular nodes of the user's path. By observing the user's decisions, the attacker may reveal some additional distributional information associated with the arcs emanated from the current user's position. It is shown that the resulting multi-stage distributionally robust shortest path problem (DRSPP) admits a linear mixed-integer programming reformulation (MIP). In particular, we distinguish between acyclic and general graphs by introducing different forms of non-anticipativity constraints. Finally, we perform a numerical study, where the quality of adaptive decisions and computational tractability of the proposed MIP reformulation are explored with respect to several classes of synthetic network~instances.
Unexpected retirement from full time work after age 62: consequences for life satisfaction in older Americans
Creators: name: Weir, David
name: Clarke, Philippa
name: Marshall, Victor W.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Recent policy shifts in the United States have resulted in an increase in the number of older workers remaining in the labor force. Increases in the retirement age for receiving full Social Security benefits coupled with declining pension funds and the erosion of employer retiree health benefits, mean that current cohorts of older workers may fully expect to work longer than previous generations. Yet, working longer may not always be possible due to health problems, outdated skills, economic insecurity, and competing obligations. We examine the consequences of unmet expectations for full time work after age 62 for life satisfaction in a nationally representative sample of older Americans. With longitudinal data from the Health and Retirement Study (1998–2008), this paper uses repeated measures of expectations for later life work among a cohort of Americans (N=1684) gathered prospectively over an eight year period, and examines the effects of unfulfilled expectations on subsequent life satisfaction. Using generalized growth mixture modeling three latent classes of individuals were identified with distinct trajectories of later life work expectations (low expectations, high expectations, and neutral expectations for full time work after age 62). A majority of men had generally high expectations to work full time past age 62, whereas the majority of women reported a low probability of working full time after age 62. When comparing expectations to actual full time work past age 62, we found no effects of unmet expectations for women. But men with less job stability (reflected by shorter job tenure and lower incomes) generally had high expectations to work longer, and their life satisfaction scores were significantly lower when these expectations were not realized. The hazards of missed expectations for later life work have consequences for subjective well-being in older adults.
CD14-159C/T and TLR9-1237T/C polymorphisms are not associated with gastric cancer risk in Caucasian populations
Creators: name: Mowat, N. Ashley G.
name: El-Omar, Emad M.
name: Berry, Susan H.
name: Chow, Wong-Ho
name: Rabkin, Charles S.
name: Vaughan, Thomas L.
name: Risch, Harvey A.
name: Gammon, Marilie D.
name: Lissowska, Jolanta
name: Hold, Georgina L.
name: Smith, Malcolm G.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: Host genetic factors play an important role in modifying the risk of human disease, including cancers of the upper gastrointestinal tract, with increasing interest in Toll-like receptor (TLR) signaling and the impact of genetic polymorphisms in these systems. The CD14-159C/T and the TLR9-1237T/C promoter polymorphisms have previously been shown to be associated with various inflammatory conditions including Helicobacter pylori-induced gastritis in Caucasian populations. In this study, we assessed the association of these two functional single nucleotide polymorphisms with gastric cancer in two independent Caucasian population-based case–control studies of upper gastrointestinal tract cancer, initially in 312 noncardia gastric carcinoma cases and 419 controls and then in 184 noncardia gastric carcinomas, 123 cardia carcinomas, 159 esophageal cancers, and 211 frequency-matched controls. Odds ratios were computed from logistic models and adjusted for potential confounding factors. No significant association was found between the CD14-159C/T and the TLR9-1237T/C promoter polymorphisms and increased risk of gastric cancer. Neither single nucleotide polymorphism has been assessed in a Caucasian gastric cancer case–control study before; although the CD14-159C/T polymorphism has been reported to show no apparent association with H. pylori-related gastric malignancy in a Taiwanese Chinese population. In conclusion, although our earlier preliminary studies suggested that the CD14-159C/T and the TLR9-1237T/C promoter polymorphisms increase the risk of precancerous outcomes, they do not seem to increase the risk of gastric cancer itself. This discrepancy merits further examination.