cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Moduli space with a boundary
Creators: name: Adam, C.
name: Oles, K.
name: Romanczukiewicz, T.
name: Wereszczynski, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We find that for various solitonic processes the corresponding canonical moduli space can have a boundary which is accessible in a finite time evolution. We show that such a boundary is not a failure of the moduli space approach but has a physical meaning. In our example, it corresponds to the complete annihilation of a colliding kink and antikink after a finite time. We further find that, close to the boundary, the solutions have an approximate self-similar form.
description: 8 pages, 8 figures
High-order matrix method with delimited expansion domain
Creators: name: Lin, Kai
name: Qian, Wei-Liang
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Motivated by the substantial instability of the fundamental and high-overtone quasinormal modes, recent developments regarding the notion of black hole pseudospectrum call for numerical results with unprecedented precision. This work generalizes and improves the matrix method for black hole quasinormal modes to higher orders, specifically aiming at a class of perturbations to the metric featured by discontinuity intimately associated with the quasinormal mode structural instability. The approach is based on the mock-Chebyshev grid, which guarantees its convergence in the degree of the interpolant. In practice, solving for black hole quasinormal modes is a formidable task. The presence of discontinuity poses a further difficulty so that many well-known approaches cannot be employed straightforwardly. Compared with other viable methods, the modified matrix method is competent in speed and accuracy. Therefore, the method serves as a helpful gadget for relevant studies.
description: arXiv admin note: text overlap with arXiv:2203.14320
title: Υπολογιστική μελέτη μαγνητικού περιορισμού πλάσματος υψηλής πυκνότητας και θερμοκρασίας παρουσία ισχυρού μαγνητικού πεδίου με ανάπτυξη 1+1/2-D ΜΥΔ κώδικα - εφαρμογή για πηγή νετρονίων
Creators: name: Λουπασάκης Ιωάννης Ε.
Publisher: name: Technical University of Crete
Year: 2009

description: Μη διαθέσιμο
Additional file 1 of Transcriptome sequencing and microRNA–mRNA regulatory network construction in the lens from a Na2SeO3-induced Sprague Dawley rat cataract model
Creators: name: Fang, Rui
name: Yue, Pei-Lin
name: Li, Hai-Long
name: Ding, Xue-Fei
name: Jia, Yu-Xuan
name: Liu, Zhao-Chuan
name: Zhou, Hong-Gang
name: Song, Xu-Dong
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1.
Fast Lifelong Adaptive Inverse Reinforcement Learning from Demonstrations
Creators: name: Chen, Letian
name: Jayanthi, Sravan
name: Paleja, Rohan
name: Martin, Daniel
name: Zakharov, Viacheslav
name: Gombolay, Matthew
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Learning from Demonstration (LfD) approaches empower end-users to teach robots novel tasks via demonstrations of the desired behaviors, democratizing access to robotics. However, current LfD frameworks are not capable of fast adaptation to heterogeneous human demonstrations nor the large-scale deployment in ubiquitous robotics applications. In this paper, we propose a novel LfD framework, Fast Lifelong Adaptive Inverse Reinforcement learning (FLAIR). Our approach (1) leverages learned strategies to construct policy mixtures for fast adaptation to new demonstrations, allowing for quick end-user personalization, (2) distills common knowledge across demonstrations, achieving accurate task inference; and (3) expands its model only when needed in lifelong deployments, maintaining a concise set of prototypical strategies that can approximate all behaviors via policy mixtures. We empirically validate that FLAIR achieves adaptability (i.e., the robot adapts to heterogeneous, user-specific task preferences), efficiency (i.e., the robot achieves sample-efficient adaptation), and scalability (i.e., the model grows sublinearly with the number of demonstrations while maintaining high performance). FLAIR surpasses benchmarks across three control tasks with an average 57% improvement in policy returns and an average 78% fewer episodes required for demonstration modeling using policy mixtures. Finally, we demonstrate the success of FLAIR in a table tennis task and find users rate FLAIR as having higher task (p<.05) and personalization (p<.05) performance.
Botswana: Downstream linkages
Creators: name: Maennling, Nicolas Wolfram
name: Toledano, Perrine
Publisher: name: Columbia University
Year: 2018
Subjects: Sustainable development
Commercial policy
Ore-dressing
Diamond mines and mining

description: The Government of Botswana managed to successfully negotiate a sophisticated downstream beneficiation agreement with its main partner, De Beers. The most important success factor was its exceptional bargaining power at the time of negotiation, which arose from a combination of three factors: 1) the loss in market power of De Beers, 2) the high reliance of De Beers on Botswana for its revenues and rough diamond supply, and 3) the need to negotiate the renewal of the licence.
Ergebnis der Metalluntersuchung an dem Pressblechmodel aus dem Römischen Museum Augsburg
Creators: name: Kühn, Hermann
Publisher: name: Verlag des Römisch-Germanischen Zentralmuseums Mainz
Year: 2017
Subjects: Römerzeit; 4. Jh. n.Chr.; Deutschland; Bayern; Fibeln; Pressblechscheibenfibeln; Technologie

description: [nicht vorhanden / not available]
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 13 (1966)
title: Παραγωγή υδρογόνου μέσω ξηρής αναμόρφωσης μεθανίου με διοξείδιο του άνθρακα
Creators: name: Βαρβαρέσου Θεοδώρα
Publisher: name: Technical University of Crete
Year: 2009

description: Μη διαθέσιμο
Characterization of the Thermospheric Mean Winds and Circulation during Solstice using ICON/MIGHTI Observations
Creators: name: Yiğit, Erdal
name: Dhadly, Manbharat
name: Medvedev, Alexander S.
name: Harding, Brian J.
name: Englert, Christoph R.
name: Wu, Qian
name: Immel, Thomas J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Space Physics (physics.space-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Using the horizontal neutral wind observations from the MIGHTI instrument onboard NASA's ICON (Ionospheric Connection Explorer) spacecraft with continuous coverage, we determine the climatology of the mean zonal and meridional winds and the associated mean circulation at low- to middle latitudes ($10^\circ$S-40$^{\circ}$N) for Northern Hemisphere {summer} solstice conditions between 90 km and 200 km altitudes, specifically on 20 June 2020 solstice as well as for a one-month period from 8 June-7 July 2020 {and for Northern winter season from 16 December 2019-31 January 2020, which spans a 47-day period, providing full local time coverage}. The data are averaged within appropriate altitude, longitude, latitude, solar zenith angle, and local time bins to produce mean wind distributions. The geographical distributions and local time variations of the mean horizontal circulation are evaluated. The instantaneous horizontal winds exhibit a significant degree of spatiotemporal variability often exceeding $\pm 150 $ m s$^{-1}$. The daily averaged zonal mean winds demonstrate day-to-day variability. Eastward zonal winds and northward (winter-to-summer) meridional winds are prevalent in the lower thermosphere, which provides indirect observational evidence of the eastward momentum deposition by small-scale gravity waves. The mean neutral winds and circulation exhibit smaller scale structures in the lower thermosphere (90-120 km), while they are more homogeneous in the upper thermosphere, indicating the increasingly dissipative nature of the thermosphere. The mean wind and circulation patterns inferred from ICON/MIGHTI measurements can be used to constrain and validate general circulation models, as well as input for numerical wave models.
description: Accepted for publication in Journal of Geophysical Research - Space Physics
title: Περιφερειακές ανισότητες και περιφερειακή πολιτική στην Ευρωπαϊκή Κοινότητα και την Ελλάδα
Creators: name: Γεντεκάκη Ειρήνη
Publisher: name: Technical University of Crete
Year: 2009

description: 1.Εισαγωγή -- 2.Τα πρώτα στάδια της περιφερειακής πολιτικής στην Ευρωπαϊκή Κοινότητα -- 3.Το ΕΤΠΑ ως βασικό όργανο της περιφερειακής πολιτικής -- 4.Ενίσχυση των Διαρθρωτικών Ταμείων.Ενίσχυση της Περιφερειακής Πολιτικής -- 5.Το πλαίσιο της περιφερειακής πολιτικής την περίοδο 1994-1999 και 2000-2006 -- 6.Η τελευταία προγραμματική περίοδος (2007-2013) και τα στάδια της περιφερειακής πολιτικής -- 7.Στοιχεία εκθέσεων προόδου για τη συνοχή -- 8.Η πορεία της περιφερειακής πολιτικής στην Ελλάδα και η τέταρτη προγραμματική περίοδος
Universality for the largest eigenvalue of sample covariance matrices with general population
Creators: name: Bao, Zhigang
name: Pan, Guangming
name: Zhou, Wang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: This paper is aimed at deriving the universality of the largest eigenvalue of a class of high-dimensional real or complex sample covariance matrices of the form $\mathcal{W}_N=Σ^{1/2}XX^*Σ^{1/2}$. Here, $X=(x_{ij})_{M,N}$ is an $M\times N$ random matrix with independent entries $x_{ij},1\leq i\leq M,1\leq j\leq N$ such that $\mathbb{E}x_{ij}=0$, $\mathbb{E}|x_{ij}|^2=1/N$. On dimensionality, we assume that $M=M(N)$ and $N/M\rightarrow d\in(0,\infty)$ as $N\rightarrow\infty$. For a class of general deterministic positive-definite $M\times M$ matrices $Σ$, under some additional assumptions on the distribution of $x_{ij}$'s, we show that the limiting behavior of the largest eigenvalue of $\mathcal{W}_N$ is universal, via pursuing a Green function comparison strategy raised in [Probab. Theory Related Fields 154 (2012) 341-407, Adv. Math. 229 (2012) 1435-1515] by Erdős, Yau and Yin for Wigner matrices and extended by Pillai and Yin [Ann. Appl. Probab. 24 (2014) 935-1001] to sample covariance matrices in the null case ($Σ=I$). Consequently, in the standard complex case ($\mathbb{E}x_{ij}^2=0$), combing this universality property and the results known for Gaussian matrices obtained by El Karoui in [Ann. Probab. 35 (2007) 663-714] (nonsingular case) and Onatski in [Ann. Appl. Probab. 18 (2008) 470-490] (singular case), we show that after an appropriate normalization the largest eigenvalue of $\mathcal{W}_N$ converges weakly to the type 2 Tracy-Widom distribution $\mathrm{TW}_2$. Moreover, in the real case, we show that when $Σ$ is spiked with a fixed number of subcritical spikes, the type 1 Tracy-Widom limit $\mathrm{TW}_1$ holds for the normalized largest eigenvalue of $\mathcal {W}_N$, which extends a result of Féral and Péché in [J. Math. Phys. 50 (2009) 073302] to the scenario of nondiagonal $Σ$ and more generally distributed $X$.
description: Published in at http://dx.doi.org/10.1214/14-AOS1281 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
title: Ρύπανση από βαρέα μέταλλα σε ιζήματα βυθού του νομού Χανίων
Creators: name: Φωτείνης Σπυρίδωνας
Publisher: name: Technical University of Crete
Year: 2009

description: Περιγραφή ακτίνων Χ -- 2.Φασματοσκοπία φθορισμού ακτίνων Χ -- 3.Βαρέα μέταλλα -- 4.Πειραματικές μετρήσεις -- 5.Αποτελέσματα και συμπεράσματα
title: Ουρές αναμονής
Creators: name: Στριλάκος Αθανάσιος
Publisher: name: Technical University of Crete
Year: 2009

description: 1.Πιθανότητες και τυχαίες μεταβλητές -- 2.Στοχαστικές ανελίξεις -- 3.Αλυσίδες Markov -- 4.Ανέλιξη poisson -- 5.Ανανεωτικές ανελίξεις -- 6.Ουρές -- 7.Μ/Μ/1 Ουρά -- 8.M/G/1 Ουρά -- 9.G/M/1 Ουρά
The Use Of Viscous Dampers For Retrofitting Of Reinforced Concrete Frames.
Creators: name: Shakouri Mahmoudabadi, Nasim
Publisher: name: figshare
Year: 2023
Subjects: Civil geotechnical engineering
Civil engineering not elsewhere classified
Structural engineering

description: During last earthquakes, often the conventional reinforced concrete (RC) buildings had suffered damages. So in conventional RC buildings, earthquake-induced energy is dissipated in components of the gravity and lateral-load-resisting system. The action of dissipating energy in framing such as beams and joints in a moment-resisting frame produces damage in those components. Repair of such damage after an earthquake is typically expensive and often requires evacuation of the building while repair work on the gravity system is undertaken. In this research, adding viscose damper to new and existing RC frames have investigated. So nonlinear dynamic analysis of the systems has been carried out and its structural behavior has been investigated. Results indicate that, this damper enhances the seismic behavior of RC frames. It causes the energy applied to structure due seismic loading, concentrate on damper while other members stand in elastic zone. It evacuation of the building for repair might not be necessary and the total repair cost will likely be minor compared with the costs associated with repair and business interruption in a conventional building.
title: Βαθμός αποτίμησης τραπεζικών ιδρυμάτων Ν. Χανίων
Creators: name: Βυζιράκη Γεωργία
Publisher: name: Technical University of Crete
Year: 2009

description: 1. Εισαγωγή -- 2. Τράπεζα -- 3. Σχεδιασμός και υλοποίηση έρευνας -- 4. Αποτελέσματα
Australia: Downstream linkages
Creators: name: Maennling, Nicolas Wolfram
name: Toledano, Perrine
Publisher: name: Columbia University
Year: 2018
Subjects: Sustainable development
Commercial policy
Steel industry and trade

description: The increasingly globalized steel market, global overcapacity, a high Australian dollar, and the fallout from the 2008 financial crisis all contributed to the post-protection demise of the steel industry in Australia. Ultimately, despite the abundance of key inputs for steel production and a highly skilled work force, Australia has not managed to develop its steel production capacity much beyond what is needed to service domestic demand. However, the country provides an interesting counterfactual for resource-rich countries given that it has developed without following the downstream beneficiation pathway.
Formation, Structure, and Detectability of the Geminids Meteoroid Stream
Creators: name: Cukier, Wolf Z.
name: Szalay, Jamey R.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The Geminids meteoroid stream produces one of the most intense meteor showers at Earth. It is an unusual stream in that its parent body is understood to be an asteroid, (3200) Phaethon, unlike most streams which are formed via ongoing cometary activity. Until recently, our primary understanding of this stream came from Earth-based measurements of the Geminids meteor shower. However, the Parker Solar Probe (PSP) spacecraft has transited near the core of the stream close to its perihelion and provides a new platform to better understand this unique stream. Here, we create a dynamical model of the Geminids meteoroid stream, calibrate its total density to Earth-based measurements, and compare this model to recent observations of the dust environment near the Sun by PSP. For the formation mechanisms considered, we find the core of the meteoroid stream predominantly lies interior to its parent body orbit and expect grains in the stream to be $\gtrsim$10 $μ$m in radius. Data-model comparisons of the location of the stream relative to Phaethon's orbit are more consistent with a catastrophic formation scenario, in contrast to cometary formation. Finally, while PSP transits very near the core of the stream, the impact rate expected by Geminids meteoroids is orders of magnitude below the impact rates observed by PSP, and hence undetectable in-situ. We similarly expect the upcoming DESTINY+ mission to be unable to detect appreciable quantities of Geminids grains far from (3200) Phaethon.
description: 13 pages, 7 figures
Additional file 1 of Australian general practitioners’ perspectives on integrating specialist diabetes care with primary care: qualitative study
Creators: name: Taylor, Rachael
name: Acharya, Shamasunder
name: Parsons, Martha
name: Ranasinghe, Ushank
name: Fleming, Kerry
name: Harris, Melissa L.
name: Kuzulugil, Deniz
name: Byles, Julie
name: Philcox, Annalise
name: Tavener, Meredith
name: Attia, John
name: Kuehn, Johanna
name: Hure, Alexis
Publisher: name: figshare
Year: 2023
Subjects: Medicine
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Science Policy

description: Supplementary Material 1
Vertrauen und Vertrauensschutz im Kunsthandel Kongress des deutschen Kunsthandelsverbands am 9. und 10. Mai 2011 in Berlin
Creators: name: Kemle, Nicolai
Publisher: name: Kunstrechtsspiegel
Year: 2017

description: -
description: Kunstrechtsspiegel, Nr. 2 (2011): Kunstrechtsspiegel
A Layered Spin 1/2 polymorph of titanium triiodide
Creators: name: Ni, Danrui
name: Mudiyanselage, Ranuri S. Dissanayaka
name: Xu, Xianghan
name: Mun, Junsik
name: Zhu, Yimei
name: Xie, Weiwei
name: Cava, R. J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A previously unreported layered spin 1/2 triangular lattice polymorph of TiI3 is described, synthesized under 6 GPa of applied pressure at 900 C, but stable at atmospheric pressure. This air-sensitive material has a CdI2-type layered structure (P-3m1 (#164), a = 4.012 A and c = 6.641 A at 120 K, Z = 1 of Ti0.667I2) with an in-plane triangular lattice, related to that of TiI4 (Ti0.5I2). Although the TiI3 formula is consistent with expectations for a layered honeycomb lattice of spin 1/2 Ti(III), there appears to be disorder in the crystal structure. Magnetic susceptibility and heat capacity measurements suggest that the material undergoes several low temperature phase transitions.
A labeled dataset of cloud types using data from GOES-16 and CloudSat
Creators: name: Jure, Paula V. Romero
name: Masuelli, Sergio
name: Cabral, Juan Bautista
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In this paper we present the development of a dataset consisting of 91 Multi-band Cloud and Moisture Product Full-Disk (MCMIPF) from the Advanced Baseline Imager (ABI) on board GOES-16 geostationary satellite with 91 temporally and spatially corresponding CLDCLASS products from the CloudSat polar satellite. The products are diurnal, corresponding to the months of January and February 2019 and were chosen such that the products from both satellites can be co-located over South America. The CLDCLASS product provides the cloud type observed for each of the orbit's steps and the GOES-16 multiband images contain pixels that can be co-located with these data. We develop an algorithm that returns a product in the form of a table that provides pixels from multiband images labelled with the type of cloud observed in them. These labelled data conformed in this particular structure are very useful to perform supervised learning. This was corroborated by training a simple linear artificial neural network based on the work of Gorooh et al. (2020), which gave good results, especially for the classification of deep convective clouds.
description: 6 pages, 7 figures. Submitted to 2022 IEEE Biennial Congress of Argentina (ARGENCON). Presented in 2022 IEEE Biennial Congress of Argentina (ARGENCON), San Juan, Argentina
Yb Valence Change in (Ce,Yb)CoIn5 from spectroscopy and bulk properties
Creators: name: Dudy, L.
name: Denlinger, J. D.
name: Shu, L.
name: Janoschek, M.
name: Allen, J. W.
name: Maple, M. B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The electronic structure of (Ce,Yb)CoIn5 has been studied by a combination of photoemission, x-ray absorption and bulk property measurements. Previous findings of a Ce valence near 3+ for all x and of an Yb valence near 2.3+ for x>0.3 were confirmed. One new result of this study is that the Yb valence for x<0.2 increases rapidly with decreasing x from 2.3+ toward 3+, which correlates well with de Haas van Alphen results showing a change of Fermi surface around x=0.2. Another new result is the direct observation by angle resolved photoemission Fermi surface maps of about 50% cross sectional area reductions of the α- and β-sheets for x=1 compared to x=0, and a smaller, essentially proportionate, size change of the α-sheet for x=0.2. These changes are found to be in good general agreement with expectations from simple electron counting. The implications of these results for the unusual robustness of superconductivity and Kondo coherence with increasing x in this alloy system are discussed.
Impacts of hydrogen and residual burned gas on the delfagration/auto-ignition detonation transition
Creators: name: Ezekwesili, Roseline
name: Strozzi, Camille
name: BELLENOUE, Marc
name: Bohon, Myles
Publisher: name: Italian Section of The Combustion Institute
Year: 2025
Subjects: auto-ignition
detonation

description: N-decane is a single component kerosene substitute. This present study aims to explore how hydrogen addition t on decane and also how the presence of RBG affect the DAIDT behavior of n decane
title: Ανάγνωση και οικειοποίηση ανοίκειων λιμενικών περιοχών / Το παράδειγμα των λιπασμάτων της Δραπετσώνας με τη ματιά του Stalker
Creators: name: Πρισιμιτζακης Θεοδωρος
Publisher: name: Technical University of Crete
Year: 2011

description: Η συγκεκριμένη ερευνητική εργασία έχει ως στόχο την λεπτομερή ανάλυση δύο σημαντικών εννοιών στην αντιμετώπιση ανοίκειων αστικών περιοχών που χρήζουν αρχιτεκτονική επέμβασης - ''Ανάγνωση Ορίων'' και ''Δομές Οικειοποίησης''
The Disk Population in a Distant Massive Protocluster
Creators: name: Cheng, Yu
name: Tan, Jonathan C.
name: Tobin, John J.
name: Fedriani, Ruben
name: Andersen, Morten
name: Wang, Junfeng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The unprecedented angular resolution and sensitivity of ALMA makes it possible to unveil disk populations in distant ($>$2 kpc), embedded young cluster environments. We have conducted an observation towards the central region of the massive protocluster G286.21+0.16 at 1.3 mm. With a spatial resolution of 23 mas and a sensitivity of 15 $\rm μJy~beam^{-1}$, we detect a total of 38 protostellar disks. These disks have dust masses ranging from about 53 to 1825 $M_\oplus$, assuming a dust temperature of 20 K. This sample is not closely associated with previously identified dense cores, as would be expected for disks around Class 0 protostars. Thus, we expect our sample, being flux limited, to be mainly composed of Class I/flat-spectrum source disks, since these are typically more massive than Class II disks. Furthermore, we find that the distributions of disk masses and radii are statistically indistinguishable with those of the Class I/flat-spectrum objects in the Orion molecular cloud, indicating similar processes are operating in G286.21+0.16 to regulate disk formation and evolution. The cluster center appears to host a massive protostellar system composed of three sources within 1200 au, including a potential binary with 600 au projected separation. Relative to this center, there is no evidence for widespread mass segregation in the disk population. We do find a tentative trend of increasing disk radius versus distance from the cluster center, which may point to the influence of dynamical interactions being stronger in the central regions.
description: 23 pages, 7 Figures, accepted by ApJ
title: Για την αρχιτεκτονική και το κινούμενο σώμα: η σημασία της κιναίσθησης ως μέσο αντίληψης του χώρου
Creators: name: Σπανακη Καλλιοπη
Publisher: name: Technical University of Crete
Year: 2014

description: 'Μπορούμε να πούμε ότι ο χώρος γεννιέται μέσα από δράσεις, σειρές γεγονότων, εκφράσεων και σωματικών κινήσεων που εκτελούνται σε συγκεκριμένο χρόνο σε κάποιο περιβάλλον. Ταυτοποιείται από κάποια ανάμνηση, μια ανθρώπινη χρήση', ένα βίωμα. Έτσι μόνο ο χώρος υφίσταται στο μυαλό των ανθρώπων, συνδεδεμένος πάντα με κάποιο συναίσθημα ή κάποια σκέψη. Το κινούμενο σώμα στο χώρο είναι, λοιπόν, αυτό που χαράζει πορεία στην παρούσα εργασία. Ας δούμε που μπορούν να μας οδηγήσουν τα ίχνη του, η ίδια του η εμπειρία.
Does the lockstep growth between black holes and bulges create their mass relation?
Creators: name: Yang, Guang
name: Brandt, W. N.
name: Alexander, David M.
name: Boquien, Médéric
name: Ni, Qingling
name: Papovich, Casey
name: Spilker, Justin S.
name: Vito, Fabio
name: Walsh, Jonelle L.
name: Zhang, Chengpeng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Recent studies have revealed a strong relation between sample-averaged black-hole (BH) accretion rate (BHAR) and star formation rate (SFR) among bulge-dominated galaxies, i.e., "lockstep" BH-bulge growth, in the distant universe. This relation might be closely related to the BH-bulge mass correlation observed in the local universe. To understand further BH-bulge coevolution, we present ALMA CO(2-1) or CO(3-2) observations of 7 star-forming bulge-dominated galaxies at z=0.5-2.5. Using the ALMA data, we detect significant ($>3σ$) CO emission from 4 objects. For our sample of 7 galaxies, we measure (or constrain with upper limits) their CO line fluxes and estimate molecular gas masses ($M_{gas}$). We also estimate their stellar masses ($M_{star}$) and SFRs by modelling their spectral energy distributions (SEDs). Using these physical properties, we derive the gas-depletion timescales ($t_{dep} = M_{gas}/SFR$) and compare them with the bulge/BH growth timescales ($t_{grow} = M_{star}/SFR \sim M_{BH}/BHAR$). Our sample generally has $t_{dep}$ shorter than $t_{grow}$ by a median factor of $\gtrsim 4$, indicating that the cold gas will be depleted before significant bulge/BH growth takes place. This result suggests that the BH-bulge lockstep growth is mainly responsible for maintaining their mass relation, not creating it. We note that our sample is small and limited to $z<2.5$; JWST and ALMA will be able to probe to higher redshifts in the near future.
description: 15 pages, 7 figures, and 3 tables. Accepted by ApJ
An extended [CII] halo around a massive star-forming galaxy at z = 5.3
Creators: name: Lambert, T. S.
name: Posses, A.
name: Aravena, M.
name: Gónzalez-López, J.
name: Assef, R. J.
name: Díaz-Santos, T.
name: Brisbin, D.
name: Decarli, R.
name: Herrera-Camus, R.
name: Mejía, J.
name: Ricci, C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: High-redshift observations are often biased towards massive and bright galaxies that are not necessarily representative of the full population. In order to accurately study galaxy evolution and mass assembly at these redshifts, observations of ``normal'' main sequence galaxies are required. Here we present Atacama Large Millimeter/Submillimeter Array (ALMA) 0.3" resolution observations of the [CII] emission line at 158$μ$m of HZ7, a main sequence galaxy at $z=5.25$. Comparing to archival rest-frame UV observations taken by the Hubble Space Telescope (HST), we find strong evidence of the existence of extended [CII] emission, which we estimate to be twice the size of the rest-frame UV emission, yielding one of the first high-redshift objects where a clear signature of a [CII] ``Halo'' has been detected to date. For a matched Sérsic profile with n = 1, we measured a [CII] effective radius of $0.50\pm 0.04$" (3.07$\pm 0.25$ kpc) and an average rest-frame UV effective radius of $0.2\pm0.04$" ($1.48\pm0.16$ kpc). The [CII] morphology and kinematics of the system suggest a merging event resulting in a non rotating disk system. This event could be responsible for the extended [CII] emission. Alternatively, some potential obscured emission could also explain the [CII] to UV size ratio. These results contribute to the growing consensus with respect to the existence of extended [CII] emission around galaxies.
description: 8 pages, 6 figures. Accepted to be published in MNRAS
Study of pnictides for photovoltaic applications
Creators: name: Kumar, Jayant
name: Gautam, Gopalakrishnan Sai
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: For the transition into a sustainable mode of energy usage, it is important to develop photovoltaic materials that exhibit better solar-to-electricity conversion efficiencies, a direct optimal band gap, and made of non-toxic, earth abundant elements compared to the state-of-the-art silicon photovoltaics. Here, we explore the non-redox-active pnictide chemical space, including binary A$_3$B$_2$, ternary AA'$_2$B$_2$, and quaternary AA'A"B$_2$ compounds (A, A', A" = Ca, Sr, or Zn; B = N or P), as candidate beyond-Si photovoltaics using density functional theory calculations. Specifically, we evaluate the ground state configurations, band gaps, and 0 K thermodynamic stability for all 20 pnictide compositions considered, besides computing the formation energy of cation vacancies, anion vacancies, and cation anti-sites in a subset of candidate compounds. Importantly, we identify SrZn$_2$N$_2$, SrZn$_2$P$_2$, and CaZn$_2$P$_2$ to be promising candidates, exhibiting optimal (1.1-1.5 eV) hybrid-functional-calculated band gaps, stability at 0 K, and high resistance to point defects (formation energies $>$1 eV), while other possible candidates include ZnCa$_2$N$_2$ and ZnSr$_2$N$_2$, which may be susceptible to N-vacancy formation. We hope that our study will contribute to the practical development of pnictide semiconductors as beyond-silicon light absorbers.
Bayesian Variable Selection in Double Generalized Linear Tweedie Spatial Process Models
Creators: name: Halder, Aritra
name: Mohammed, Shariq
name: Dey, Dipak K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Methodology (stat.ME)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Double generalized linear models provide a flexible framework for modeling data by allowing the mean and the dispersion to vary across observations. Common members of the exponential dispersion family including the Gaussian, Poisson, compound Poisson-gamma (CP-g), Gamma and inverse-Gaussian are known to admit such models. The lack of their use can be attributed to ambiguities that exist in model specification under a large number of covariates and complications that arise when data display complex spatial dependence. In this work we consider a hierarchical specification for the CP-g model with a spatial random effect. The spatial effect is targeted at performing uncertainty quantification by modeling dependence within the data arising from location based indexing of the response. We focus on a Gaussian process specification for the spatial effect. Simultaneously, we tackle the problem of model specification for such models using Bayesian variable selection. It is effected through a continuous spike and slab prior on the model parameters, specifically the fixed effects. The novelty of our contribution lies in the Bayesian frameworks developed for such models. We perform various synthetic experiments to showcase the accuracy of our frameworks. They are then applied to analyze automobile insurance premiums in Connecticut, for the year of 2008.
description: Appeared online in New England Journal of Statistics in Data Science
title: Η γειτονιά ως εργαλείο παραγωγής του αστικού χώρου
Creators: name: Προκοπη Ανδριαννα-Κωνσταντινα
Publisher: name: Technical University of Crete
Year: 2015

description: Αντικείμενο της ερευνητικής εργασίας αποτελεί η μελέτη της έννοιας της γειτονιάς ως εργαλείου παραγωγής του αστικού χώρου στο παρελθόν και το σήμερα.
Αρχικά, εξετάζεται η ανάπτυξη των παραδοσιακών γειτονιών στην Ισλαμική και αντίστοιχα στην Ευρωπαϊκή πόλη του Μεσαίωνα.
Στην συνέχεια, αναλύεται η έννοια του μπλοκ και του συμπλέγματος ως στοιχεία δόμησης του αστικού χώρου, μέσα από αστικές λογικές οι οποίες συντέλεσαν στην εκ νέου μετάφρασή του.
Έπειτα, μελετώνται τα πρώτα μοντέλα πρότυπων γειτονιών που εμφανίστηκαν στις αρχές του 20ου αιώνα στις Η.Π.Α.
Και τέλος, αναφέρονται οι κυρίαρχες στρατηγικές ανάπλασης των γειτονιών στο πλαίσιο της σημερινής ανάγκης για ανανέωση του αστικού τοπίου.
“Patient-time”, “doctor-time”, and “institution-time”: Perceptions and definitions of time among doctors who become patients
Creators: name: Klitzman, Robert L.
Publisher: name: Columbia University
Year: 2007
Subjects: Medical care
Communication in medicine
Physician and patient
Medical education

description: Objective: To examine views and experiences of conflicts concerning time in healthcare, from the perspective of physicians who have become patients. Methods: We conducted two in-depth semi-structured 2-h interviews concerning experiences of being health care workers, and becoming a patient, with each of 50 doctors who had serious illnesses. Results: These doctor–patients often came to realize as they had not before how patients experience time differently, and how “patient-time”, “doctor-time”, and “institution-time” exist and can conflict. Differences arose in both the long and short term, regarding historical time (prior eras/decades in medicine), prognosis (months/years), scheduling delays (days/weeks), daily medical events and tasks (hours), and periods in waiting rooms (minutes/hours). Definitions of periods of time (e.g., “fast”, “slow”, “plenty”, and “soon”) also varied widely, and could clash. Professional socialization had heretofore impeded awareness of these differences. Physicians tried to address these conflicts in several ways (e.g., trying to provide test results more promptly), though full resolution remained difficult. Conclusions: Doctors who became patients often now realized how physicians and patients differ in subjective experiences of time. Medical education and research have not adequately considered these issues, which can affect patient satisfaction, doctor–patient relationships and communication, and care. Practice implications: Physicians need to be more sensitive to how their definitions, perceptions, and experiences concerning time can differ from those of patients.
title: ARCH_TUC/2024: διάχυτη και ευέλικτη αρχιτεκτονική στην πόλη
title: ARCH_TUC/2024: difused & flexible architectural education in the city
Creators: name: Λιονακη Ελενη
Publisher: name: Technical University of Crete
Year: 2015

description: Η διπλωματική αυτή αφορά στην ανάπτυξη και τον στρατηγικό σχεδιασμό ενός νέου ανοικτού συστήματος διάχυτης και ευέλικτης αρχιτεκτονικής εκπαίδευσης στην πόλη. Η αρχιτεκτονική εκπαίδευση θεωρούμε ότι πρέπει να είναι διάχυτη και ενσωματωμένη στον αστικό ιστό, σε διαρκή αλληλεπίδραση με την κοινωνία και τους πολίτες της, παρατηρώντας και αναγνωρίζοντας τα πραγματικά προβλήματα και τις ανάγκες της, για να λειτουργεί σε βάθος, ολοκληρωμένα και ισορροπημένα, καθώς η πόλη και η κοινωνία την τροφοδοτεί με πληροφορίες και ερεθίσματα και η αρχιτεκτονική σχολή με τη σειρά της, επιστρέφει στην πόλη δημιουργικές ιδέες και προτάσεις. Η αρχιτεκτονική εκπαίδευση  θα πρέπει να είναι ένα παράλληλο σύμπαν, που να καλλιεργεί μία αίσθηση περιπετειώδους έρευνας, ένα συνεχόμενο ταξίδι, όχι απομονωμένο, περιορισμένο και συνδεδεμένο με ένα και μοναδικό κτήριο σχολής, αλλά να οργανωθεί έτσι ώστε να λειτουργεί ως μία ανοικτή πλατφόρμα – υποδομή ανταλλαγής γνώσης, αποτελώντας οργανικό κομμάτι της κοινωνίας και της πόλης. Ως παράδειγμα εφαρμογής του νέου συστήματος-δικτύου αρχιτεκτονικής εκπαίδευσης, χρησιμοποιείται η πόλη των Χανίων.
Naming names: Perceptions of name-based HIV reporting, partner notification, and criminalization of non-disclosure among persons living with HIV
Creators: name: Klitzman, Robert L.
name: Kirshenbaum, S. B.
name: Kittel, L. E.
name: Morin, S. F.
name: Daya, Shaira
name: Mastrogiacomo, Maddalena
name: Rotheram-Borus, M. J.
Publisher: name: Columbia University
Year: 2004
Subjects: HIV-positive persons
HIV-positive persons--Legal status, laws, etc.
HIV infections--Moral and ethical aspects
Self-disclosure--Health aspects
Epidemiology
Medical policy

description: Policies of name-based HIV reporting, partner notification (PN), and criminalization of non-disclosure of HIV positive status to sexual partners remain controversial. The views of people living with HIV (PLH) are critical to the success of these three initiatives, but have been understudied. Thus, we interviewed 76 PLH about these policies. Themes arose of potential public health benefits (e.g., epidemiological surveillance and notification of possible exposure) and costs (e.g., deterrence of testing); threats to privacy, civil rights and relationships; government mistrust; and beliefs that prevention is an individual, not governmental responsibility. Misperceptions about the intent, content and scope of these policies, and past experiences of discrimination, shaped these attitudes. To enhance development and implementation of HIV prevention strategies, the views of PLH must be taken into account, and education campaigns need to address misperceptions and mistrust. These data shed light on difficulties in developing and implementing policies that may affect sexual behavior, and have critical implications for future research.
Towards a Renormalization Group Approach to Density Functional Theory - General Formalism and Case Studies -
Creators: name: Kemler, Sandra
name: Braun, Jens
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We discuss a two-point particle irreducible (2PPI) approach to many-body physics which relies on a renormalization group (RG) flow equation for the associated effective action. In particular, the general structure and properties of this RG flow equation are analyzed in detail. Moreover, we discuss how our 2PPI RG approach relates to Density Functional Theory and argue that it can in principle be used to study ground-state properties of non-relativistic many-body systems from microscopic interactions, such as (heavy) nuclei. For illustration purposes, we use our formalism to compute the ground-state properties of two toy models.
description: 19 pages, 7 figures
Detecting the oscillation and propagation of the nascent dynamic solar wind structure at 2.6 solar radii using VLBI radio telescopes
Creators: name: Ma, Maoli
name: Calves, Guifre Molera
name: Cimo, Giuseppe
name: Xiong, Ming
name: Li, Peijia
name: Kong, Jing
name: Zhang, Peijin
name: He, Jiansen
name: Liu, Lijia
name: Kummamuru, Pradyumna
name: Hou, Chuanpeng
name: Edwards, Jasper
name: Liu, Qinghui
name: Chen, Zhong
name: Chu, Zhanghu
name: Wu, De
name: Zhao, Xu
name: Wang, Zhichao
name: Zhi, Songtao Han Quanquan
name: Liu, Yingkai
name: Quick, Jonathan
name: Gonzalez, Javier
name: Miro, Cristina Garcia
name: Kharinov, Mikhail
name: Mikhailov, Andrey
name: Neidhardt, Alexander
name: Venturi, Tiziana
name: Morsiani, Marco
name: Maccaferri, Giuseppe
name: Xia, Bo
name: Zhang, Hua
name: Hao, Longfei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Probing the solar corona is crucial to study the coronal heating and solar wind acceleration. However, the transient and inhomogeneous solar wind flows carry large-amplitude inherent Alfven waves and turbulence, which make detection more difficult. We report the oscillation and propagation of the solar wind at 2.6 solar radii (Rs) by observation of China Tianwen and ESA Mars Express with radio telescopes. The observations were carried out on Oct.9 2021, when one coronal mass ejection (CME) passed across the ray paths of the telescope beams. We obtain the frequency fluctuations (FF) of the spacecraft signals from each individual telescope. Firstly, we visually identify the drift of the frequency spikes at a high spatial resolution of thousands of kilometers along the projected baselines. They are used as traces to estimate the solar wind velocity. Then we perform the cross-correlation analysis on the time series of FF from different telescopes. The velocity variations of solar wind structure along radial and tangential directions during the CME passage are obtained. The oscillation of tangential velocity confirms the detection of streamer wave. Moreover, at the tail of the CME, we detect the propagation of an accelerating fast field-aligned density structure indicating the presence of magnetohydrodynamic waves. This study confirm that the ground station-pairs are able to form particular spatial projection baselines with high resolution and sensitivity to study the detailed propagation of the nascent dynamic solar wind structure.
description: 13 pages, 9 figures
Four-quark scatterings in QCD I
Creators: name: Fu, Wei-jie
name: Huang, Chuang
name: Pawlowski, Jan M.
name: Tan, Yang-yang
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate dynamical chiral symmetry breaking and the emergence of mesonic bound states from the infrared dynamics of four-quark scatterings. Both phenomena originate from the resonant scalar-pseudoscalar channel of the four-quark scatterings, and we compute the functional renormalisation group (fRG) flows of the Fierz-complete four-quark interaction of up and down quarks with its $t$ channel momentum dependence. This is done in the isospin symmetric case, also including the flow of the quark two-point function. This system can be understood as the fRG analogues of the complete Bethe-Salpeter equations and quark gap equation. The pole mass of the pion is determined from both direct calculations of the four-quark flows in the Minkowski regime of momenta and the analytic continuation based on results in the Euclidean regime, which are consistent with each other.
description: 26 pages, 20 figures, 3 tables; v2: minor typos corrected
Inflation and deformation of conformal field theory
Creators: name: Garriga, Jaume
name: Urakawa, Yuko
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It has recently been suggested that a strongly coupled phase of inflation may be described holographically in terms of a weakly coupled quantum field theory (QFT). Here, we explore the possibility that the wave function of an inflationary universe may be given by the partition function of a boundary QFT. We consider the case when the field theory is a small deformation of a conformal field theory (CFT), by the addition of a relevant operator O, and calculate the primordial spectrum predicted in the corresponding holographic inflation scenario. Using the Ward-Takahashi identity associated with Weyl rescalings, we derive a simple relation between correlators of the curvature perturbation and correlators of the deformation operator O at the boundary. This is done without specifying the bulk theory of gravitation, so that the result would also apply to cases where the bulk dynamics is strongly coupled. We comment on the validity of the Suyama-Yamaguchi inequality, relating the bi-spectrum and tri-spectrum of the curvature perturbation.
description: 20 pages, 2 figures, v2: typos corrected, v3: version to appear in JCAP
Additional file 1 of MicroRNA‐155 (miR-155) as an accurate biomarker of periodontal status and coronary heart disease severity: a case–control study
Creators: name: Daily, Zina A.
name: Al-Ghurabei, Batool Hassan
name: Al-Qarakhli, Ahmed Makki A.
name: Moseley, Ryan
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. STROBE checklist of items that should be included in reports of cross-sectional case-control observational studies with detailed referencing of requirements to the text of the paper
Using Motif Transitions for Temporal Graph Generation
Creators: name: Liu, Penghang
name: Sarıyüce, A. Erdem
Publisher: name: arXiv
Year: 2023
Subjects: subject: Social and Information Networks (cs.SI)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Graph generative models are highly important for sharing surrogate data and benchmarking purposes. Real-world complex systems often exhibit dynamic nature, where the interactions among nodes change over time in the form of a temporal network. Most temporal network generation models extend the static graph generation models by incorporating temporality in the generation process. More recently, temporal motifs are used to generate temporal networks with better success. However, existing models are often restricted to a small set of predefined motif patterns due to the high computational cost of counting temporal motifs. In this work, we develop a practical temporal graph generator, Motif Transition Model (MTM), to generate synthetic temporal networks with realistic global and local features. Our key idea is modeling the arrival of new events as temporal motif transition processes. We first calculate the transition properties from the input graph and then simulate the motif transition processes based on the transition probabilities and transition rates. We demonstrate that our model consistently outperforms the baselines with respect to preserving various global and local temporal graph statistics and runtime performance.
description: Accepted by 29th ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD2023)