cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Λήψη διαχειριστικών μέτρων με χρήση Γεωγραφικών Συστημάτων Πληροφοριών:
Creators: name: Σαπανίδης, Αθανάσιος Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2010
Subjects: Αειφορική διαχείριση
Πολλαπλοί στόχοι
Γεωγραφικά συστήματα πληροφοριών
Sustainable forest management
Multiple purposes
Geographic Information Systems (GIS)

description: Οι εξελίξεις τόσο στο τεχνολογικό, όσο και στον επιστημονικό τομέα, δεν αφήνουν αδιάφορη τη δασική επιστήμη, μέρος της οποίας είναι και η δασική διαχειριστική. Η δασική διαχειριστική ασκείται σχεδόν 5 δεκαετίες και ορίζεται από προδιαγραφές που ισχύουν όλα αυτά τα χρόνια. Είναι επιτακτική ανάγκη να αλλάξουν οι προδιαγραφές αυτές και ήδη υπάρχουν νέες σκέψεις στο θέμα αυτό. Οι νέες προδιαγραφές θα πρέπει να στηρίζονται στην αειφορική διαχείριση των πολλαπλών χρήσεων ή σκοπών, όπως επιτάσσει η παγκόσμια τάση. Πλέον, η αειφορία της ξυλοπαραγωγής θεωρείται ξεπερασμένη και θα πρέπει να δίνεται σημασία στα υπόλοιπα προϊόντα του δάσους και τις λειτουργίες του. Στην κατεύθυνση αυτή κινείται και η παρούσα μεταπτυχιακή διατριβή. Θέλοντας να εφαρμόσει πολλαπλών χρήσεων διαχείριση στη περιοχή μελέτης, που είναι το δασικό σύμπλεγμα Γέρακα – Ξάνθης – Κιμμερίων. Για να ολοκληρωθεί η διαχείριση, προτιμήθηκε η λύση των Γεωγραφικών Συστημάτων Πληροφοριών (ΓΣΠ). Οργανώθηκε με όλα τα απαραίτητα η Γεωβάση Δεδομένων, αφού προηγήθηκε συλλογή, επεξεργασία, ταξινόμηση και επέκταση των δεδομένων. Ακολούθησε η χρήση των χωρικών δεδομένων που προέκυψαν, στη λήψη διαχειριστικών μέτρων βάσει την αειφορία των πολλαπλών χρήσεων και την χωρική τους κατανομή.
description: The developments so much in technological and in the scientific sector, do not leave incurious the forestal science, part of which is also forest management. Forest management is practised almost 5 decades and it is fixed by specifications that are in effect all these years. It is imperative need to change these specifications and there exists already new thoughts in this subject. The new specifications will be supposed to support sustainable multipurposal or multifunctional management, as ordains the world tendency. Henceforth, the use of timber is considered exceeded and it will be supposed is given importance in the remainder products of forest and his operations. In this direction is moved also the present postgraduate thesis. Wanting applies multipurposal management in the region of study, that is the forestal cluster of Geraka – Xanthi - Kimmerion. In order to complete the management, was preferred the solution of Geographic Information Systems (GIS). Was organised with all essential the Geodatabase, after it preceded collection, treatment, classification and extension of data. Followed the use of territorial data that resulted, in the reception of management metres, based on the viability of multiple uses and their territorial distribution.
A short-range correlation energy density functional with multi-determinantal reference
Creators: name: Toulouse, Julien
name: Gori-Giorgi, Paola
name: Savin, Andreas
Publisher: name: arXiv
Year: 2006
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We introduce a short-range correlation density functional defined with respect to a multi-determinantal reference which is meant to be used in a multi-determinantal extension of the Kohn-Sham scheme of density functional theory based on a long-range/short-range decomposition of the Coulomb electron-electron interaction. We construct the local density approximation for this functional and discuss its performance on the He atom.
description: 4 pages, 2 figures
On K-stability of Calabi-Yau fibrations
Creators: name: Hattori, Masafumi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 14D06, 14L24

description: We show that Calabi-Yau fibrations over curves are uniformly K-stable in an adiabatic sense if and only if the base curves are K-stable in the log-twisted sense. Moreover, we prove that there are cscK metrics for such fibrations when the total spaces are smooth.
description: v2: 44 pages, improved presentation
Engineering of Active and Passive Loss in High-Quality-Factor Vanadium Dioxide-Based BIC Metasurfaces
Creators: name: Aigner, Andreas
name: Ligmajer, Filip
name: Rovenská, Katarína
name: Holobrádek, Jakub
name: Idesová, Beáta
name: Maier, Stefan
name: Tittl, Andreas
name: Menezes, Leonardo
Publisher: name: Zenodo
Year: 2024

description: Active functionalities of metasurfaces are of growing interest in nanophotonics. The main strategy employed to date is spectral resonance tuning affecting predominantly the far-field response. However, this barely influences other essential resonance properties like near-field enhancement, signal modulation, quality factor, and absorbance, which are all vital for numerous applications. Here we introduce an active metasurface approach that combines temperature-tunable losses in vanadium dioxide with far-field coupling tunable symmetry-protected bound states in the continuum. This method enables exceptional precision in independently controlling both radiative and nonradiative losses. Consequently, it allows for the adjustment of both the far-field response and, notably, the near-field characteristics like local field enhancement and absorbance. We experimentally demonstrate continuous tuning from under- through critical- to overcoupling, achieving quality factors of 200 and a relative switching contrast of 78%. Our research marks a significant step toward highly tunable metasurfaces, controlling both near- and far-field properties.
Unified model for inflation and dark energy
Creators: name: Zsembinszki, Gabriel
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a model based on the idea that Planck-scale effects may produce a small explicit breaking of global symmetries. The model contains a new complex scalar field $Ψ$, charged under a certain global U(1) symmetry, interacting with a new real scalar field $χ$, neutral under U(1). For exponentially small breaking, the model accounts for both {\em early} and {\em late} periods of acceleration of the universe.
description: To appear in the proceedings of 2nd International Conference on Quantum Theories and Renormalization Group in Gravity and Cosmology (IRGAC 2006), Barcelona, Spain, 11-15 Jul 2006; 6 pages
Orbital Foregrounds for Ultra-Short Duration Transients
Creators: name: Corbett, Hank
name: Law, Nicholas M.
name: Soto, Alan Vasquez
name: Howard, Ward S.
name: Glazier, Amy
name: Gonzalez, Ramses
name: Ratzloff, Jeffrey K.
name: Galliher, Nathan
name: Fors, Octavi
name: Quimby, Robert
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Reflections from objects in Earth orbit can produce sub-second, star-like optical flashes similar to astrophysical transients. Reflections have historically caused false alarms for transient surveys, but the population has not been systematically studied. We report event rates for these orbital flashes using the Evryscope Fast Transient Engine, a low-latency transient detection pipeline for the Evryscopes. We select single-epoch detections likely caused by Earth satellites and model the event rate as a function of both magnitude and sky position. We measure a rate of $1800^{+600}_{-280}$ sky$^{-1}$ hour$^{-1}$, peaking at $m_g = 13.0$, for flashes morphologically degenerate with real astrophysical signals in surveys like the Evryscopes. Of these, $340^{+150}_{-85}$ sky$^{-1}$ hour$^{-1}$ are bright enough to be visible to the naked eye in typical suburban skies with a visual limiting magnitude of $V\approx4$. These measurements place the event rate of orbital flashes orders of magnitude higher than the combined rate of public alerts from all active all-sky fast-timescale transient searches, including neutrino, gravitational-wave, gamma-ray, and radio observatories. Short-timescale orbital flashes form a dominating foreground for un-triggered searches for fast transients in low-resolution, wide-angle surveys. However, events like fast radio bursts (FRBs) with arcminute-scale localization have a low probability ($\sim10^{-5}$) of coincidence with an orbital flash, allowing optical surveys to place constraints on their potential optical counterparts in single images. Upcoming satellite internet constellations, like SpaceX Starlink, are unlikely to contribute significantly to the population of orbital flashes in normal operations.
description: 8 pages, 4 figures
Mechanism of purification of cellulose in acidified aqueous acetone
Creators: name: Awad El-Karim, Salah El-Din El-Siddique
Publisher: name: University of British Columbia
Year: 2009

description: This project deals with solvent purification, a new approach for the preparation of high-yield dissolving pulp with characteristics similar to those recommended by the standards. At the same time, the solvent purification technique aims at removing and recovering chemically unmodified, low molecular weight sugars that could further be processed as by-products. In addition, the process offers a reduction in waste water amounts associated with dissolving pulp purification and economical reuse of the solvent. Thus, environmental abatement is also taken into account. The current technology is unable to achieve these goals. The major objective of this work is the elucidation and characterization of the mechanism of the solvent purification process, i.e., the acetonation mechanism. In this thesis a detailed study on the mechanism of purification of cellulose in acidified aqueous aceton has been carried out. The mechanism has been proved to be of a physico-chemical character. The physical phenomenon has been found to be based on the H-bond disruption/destruction in crystalline cellulose by acetone as a solvent. On the other hand, the chemical hypothesis of the mechanism is verified to be the formation of isopropylidene groups on carbohydrate chains that leads to disproportionation of the polymer and protection of the sugar ring. The validity of these hypotheses has been investigated as follows; cotton has been used throughout this study as a model compound and different techniques such as DRIFT, Ge, HPLC, C-13 CP/MAS solid state NMR, X-ray diffraction, GPC, and viscosity measurements have been employed. Factors affecting solvent purification treatment such as acidity, residence time, temperature, type of acid, and acetone concentration have also been investigated. The investigation of those factors was conducted in a manner that has helped elucidation of the acetonation mechanism rather than optimization of the solvent purification technique. Their impact on hydrogen bonding (1st hypothesis) and isopropylidenation (2nd hypothesis) has been observed to vary considerably. Results obtained on hydrogen bonding, sugar derivatives, crystallinity, molecular weight distribution, and viscosity of cotton residues are in accord with the above assumptions. Based on the experimental findings of this work, a mechanism of purification of cellulose in acidified aqueous acetone is described.
THE DYNAMIC EVOLUTION AND TRANSFORMATION OF LINGUISTIC SYSTEMS OVER TIME AND ACROSS DIVERSE CULTURAL CONTEXTS
Creators: name: Kubayev Mansur Abdumo`min o`g`li Assistant of the Department of Social Sciences Jizzakh State Polytechnic Institute Amanova Madina Xamid qizi Teacher of Practical English Department Jizzakh State Pedagogical University
Publisher: name: Zenodo
Year: 2024

description: Language is a dynamic and constantly evolving system that reflects the cultural, social, and historical contexts in which it is used. This article aims to provide an in-depth analysis of language changes, examining the factors that drive these changes and their implications for communication and society. The research draws upon a wide range of linguistic theories and empirical studies to shed light on the mechanisms underlying language evolution.

Key words

Phonological patterns, Old English, Middle English, Modern English, Pronunciation Differences
BEaTriX, an expanded and parallel X-ray beam to measure the modular X-ray optic of the ATHENA telescope
Creators: name: Salmaso, Bianca
name: Basso, Stefano
name: Spiga, Daniele
name: Ghigo, Mauro
name: Vecchi, Gabriele
name: Sironi, Giorgia
name: Cotroneo, Vincenzo
name: Pareschi, Giovanni
name: Tagliaferri, Gianpiero
name: Sisana, Davide
name: Fiorini, Mauro
name: Uslenghi, Michela
name: Ferrari, Claudio
name: Rio, Manuel Sanchez Del
name: Parodi, Giancarlo
name: Bruwitz, Vadim
name: Ferreira, Desiree Della Monica
name: Massahi, Sonny
name: Christensen, Finn
name: Bavdaz, Marcos
name: Ferreira, Ivo
name: Collon, Max
name: Vacanti, Giuseppe
name: Barriere, Nicolas M.
Publisher: name: Zenodo
Year: 2022
Subjects: BEaTriX, ATHENA, X-ray testing, X-ray microfocus source, beam expander, asymmetric diffraction, crystals

description: BEaTriX is a unique facility developed at the INAF-Osservatorio Astronomico Brera (Merate, Italy) to test ATHENA’s X-ray mirror. It can perform the X-ray acceptance tests (PSF and Aeff) of the ATHENA Silicon Pore Optics Mirror Modules (MM) at their production rate (2 MM/day), at 4.51 and 1.49 keV. The X-ray beam approximates the one created by an astronomical source (collimated and large), re-created in a small lab (about 9 m x 18 m) thanks to an innovative design. A microfocus X-ray source produces a divergent beam which is conditioned (collimated, monochromatic, and expanded) by a parabolic mirror and a set of silicon crystals, one of which is asymmetrically cut with respect to the lattice planes. The first beam line, at the energy of 4.51 keV, has already been developed. The large monochromatic beam is collimated to < 3 arcsec, with a flux of 60 photons/s/cm2. Its size (170 mm x 60 mm) is sufficiently large to cover the entrance pupil of the MMs. The PSF and Aeff of the first optically representative MM were successfully measured.
description: Grants: ESA contract # 4000123152/18/NL/BW, AHEAD grant #654215 and #871158, ASI accordo attuativo # 2019-27-HH.0, Internal INAF funds
The Higgs-portal for Dark Matter:effective field theories versus concrete realizations
Creators: name: Arcadi, Giorgio
name: Djouadi, Abdelhak
name: Kado, Marumi
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Higgs-portal effective field theories are widely used as benchmarks in order to interpret collider and astroparticle searches for dark matter (DM) particles. To assess the validity of these effective models, it is important to confront them to concrete realizations that are complete in the ultraviolet regime. In this paper, we compare effective Higgs-portal models with scalar, fermionic and vector DM with a series of increasingly complex realistic models, taking into account all existing constraints from collider and astroparticle physics. These complete realizations include the inert doublet with scalar DM, the singlet-doublet model for fermionic DM and models based on spontaneously broken dark SU(2) and SU(3) gauge symmetries for vector boson DM. We also discuss the simpler scenarios in which a new scalar singlet field that mixes with the standard Higgs field is introduced with minimal couplings to isosinglet spin--$0, \frac12$ and 1 DM states. We show that in large regions of the parameter space of these models, the effective Higgs-portal approach provides a consistent limit and thus, can be safely adopted, in particular for the interpretation of searches for invisible Higgs boson decays at the LHC. The phenomenological implications of assuming or not that the DM states generate the correct cosmological relic density are also discussed.
description: 54 pages, 24 figures
SOFIA/FIFI-LS Full-disk [CII] Mapping and CO-dark Molecular Gas across the Nearby Spiral Galaxy NGC 6946
Creators: name: Bigiel, F.
name: de Looze, I.
name: Krabbe, A.
name: Cormier, D.
name: Barnes, A. T.
name: Fischer, C.
name: Bolatto, A. D.
name: Bryant, A.
name: Colditz, S.
name: Geis, N.
name: Herrera-Camus, R.
name: Iserlohe, C.
name: Klein, R.
name: Leroy, A. K.
name: Linz, H.
name: Looney, L. W.
name: Madden, S. C.
name: Poglitsch, A.
name: Stutzki, J.
name: Vacca, W. D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present SOFIA/FIFI-LS observations of the [CII] 158$μ$m cooling line across the nearby spiral galaxy NGC 6946. We combine these with UV, IR, CO, and H I data to compare [CII] emission to dust properties, star formation rate (SFR), H$_2$, and HI at 560pc scales via stacking by environment (spiral arms, interarm, and center), radial profiles, and individual, beam-sized measurements. We attribute $73\%$ of the [CII] luminosity to arms, and $19\%$ and $8\%$ to the center and interarm region, respectively. [CII]/TIR, [CII]/CO, and [CII]/PAH radial profiles are largely constant, but rise at large radii ($\gtrsim$8kpc) and drop in the center ("[CII] deficit"). This increase at large radii and the observed decline with the 70$μ$m/100$μ$m dust color are likely driven by radiation field hardness. We find a near proportional [CII]-SFR scaling relation for beam-sized regions, though the exact scaling depends on methodology. [CII] also becomes increasingly luminous relative to CO at low SFR (interarm or large radii), likely indicating more efficient photodissociation of CO and emphasizing the importance of [CII] as an H$_2$ and SFR tracer in such regimes. Finally, based on the observed [CII] and CO radial profiles and different models, we find $α_{CO}$ to increase with radius, in line with the observed metallicity gradient. The low $α_{CO}$ (galaxy average $\lesssim2\,M_{sun}\,pc^{-2}\,(K\,km\,s^{-1})^{-1}$) and low [CII]/CO ratios ($\sim$400 on average) imply little CO-dark gas across NGC 6946, in contrast to estimates in the Milky Way.
description: 12 pages, 6 Figures, published in ApJ
PREDICTIVE ACCOUNTING AND REAL-TIME FINANCIAL REPORTING: A CASE STUDY OF AI IMPLEMENTATION IN GHANA SMES
Creators: name: Mbonigaba Celestin & Jerryson Ameworgbe Gidisu
Publisher: name: Zenodo
Year: 2024

description: This study addresses the critical need for advanced financial management tools among Ghanaian SMEs by exploring the transformative role of Artificial Intelligence (AI) in predictive accounting and real-time financial reporting. With less than 10% of SMEs adopting AI technologies by 2023-despite constituting 92% of businesses and contributing over 70% of GDP-the study justifies its relevance in the context of Ghana’s economic resilience. The primary objective was to assess how AI implementation impacts financial forecasting accuracy, decision-making speed, compliance, and investor readiness. Employing a descriptive and explanatory design with secondary data from 225 AI-adopting SMEs between 2019 and 2023, the study utilized t-tests, chi-square tests, Pearson correlation, and multiple regression analysis. Results showed a 32% increase in forecasting accuracy, 40% reduction in financial processing time, a 23-point rise in the Investment Readiness Index, and a compliance improvement from 60% to 85%. A strong correlation (r = 0.81, p < 0.001) between digital literacy and AI adoption was observed, while the regression model explained 59% (R² = 0.59) of the variance in financial performance. The study concludes that AI tools significantly enhance financial transparency and agility. Implications highlight the need for targeted policies and SME training to bridge digital skill gaps, while recommendations emphasize AI tool subsidies, national digital literacy programs, and scalable AI integration models. The study contributes to emerging market literature by demonstrating the viability and benefits of predictive accounting in SME ecosystems.
The Robinson Gravitational Wave Background Telescope (BICEP): a bolometric large angular scale CMB polarimeter
Creators: name: Yoon, K. W.
name: Ade, P. A. R.
name: Barkats, D.
name: Battle, J. O.
name: Bierman, E. M.
name: Bock, J. J.
name: Brevik, J. A.
name: Chiang, H. C.
name: Crites, A.
name: Dowell, C. D.
name: Duband, L.
name: Griffin, G. S.
name: Hivon, E. F.
name: Holzapfel, W. L.
name: Hristov, V. V.
name: Keating, B. G.
name: Kovac, J. M.
name: Kuo, C. L.
name: Lange, A. E.
name: Leitch, E. M.
name: Mason, P. V.
name: Nguyen, H. T.
name: Ponthieu, N.
name: Takahashi, Y. D.
name: Renbarger, T.
name: Weintraub, L. C.
name: Woolsey, D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Robinson Telescope (BICEP) is a ground-based millimeter-wave bolometric array designed to study the polarization of the cosmic microwave background radiation (CMB) and galactic foreground emission. Such measurements probe the energy scale of the inflationary epoch, tighten constraints on cosmological parameters, and verify our current understanding of CMB physics. Robinson consists of a 250-mm aperture refractive telescope that provides an instantaneous field-of-view of 17 degrees with angular resolution of 55 and 37 arcminutes at 100 GHz and 150 GHz, respectively. Forty-nine pair of polarization-sensitive bolometers are cooled to 250 mK using a 4He/3He/3He sorption fridge system, and coupled to incoming radiation via corrugated feed horns. The all-refractive optics is cooled to 4 K to minimize polarization systematics and instrument loading. The fully steerable 3-axis mount is capable of continuous boresight rotation or azimuth scanning at speeds up to 5 deg/s. Robinson has begun its first season of observation at the South Pole. Given the measured performance of the instrument along with the excellent observing environment, Robinson will measure the E-mode polarization with high sensitivity, and probe for the B-modes to unprecedented depths. In this paper we discuss aspects of the instrument design and their scientific motivations, scanning and operational strategies, and the results of initial testing and observations.
description: 18 pages, 11 figures. To appear in Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III, Proceedings of SPIE, 6275, 2006
Additional file 1 of Measurement of gene amplifications related to drug resistance in Plasmodium falciparum using droplet digital PCR
Creators: name: Suttipat Srisutham
name: Kanokon Suwannasin
name: Rungniran Sugaram
name: Dondorp, Arjen M.
name: Imwong, Mallika
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Primers and probes used for ddPCR and qPCR assays, and the optimal annealing temperature used.
Additional file 2 of Measurement of gene amplifications related to drug resistance in Plasmodium falciparum using droplet digital PCR
Creators: name: Suttipat Srisutham
name: Kanokon Suwannasin
name: Rungniran Sugaram
name: Dondorp, Arjen M.
name: Imwong, Mallika
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Two dimensional ddPCR amplitude plots of duplex ddPCR assays. The duplex ddPCR assay of pfmdr1/pf-β-tubulin plot (a.), duplex ddPCR assay of pfplasmepsin2/pf-β-tubulin plot (b.), and duplex ddPCR assay of pfgch1/pf-β-tubulin plot (c.) shows droplets with at least one copy of target genes (blue), reference gene (green), droplets contain both target and reference gene (orange), and empty droplets (grey).
Polarization selective Dove prism
Creators: name: Yasir, P. A. Ameen
name: Goyal, Sandeep K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We propose a passive all optical device capable of transforming the orbital angular momentum (OAM) state of light conditioned over the polarization states. The efficiency of this device is ensured due to its linear optical nature. As applications of this device, we show CNOT and SWAP operations between polarization and OAM qubits, non-interferometric OAM mode sorter and generalized Pauli X operation on a four-dimensional subspace of OAM.
description: 8 pages, 7 figures
Ενεργειακή αναβάθμιση υφιστάμενων κτιρίων – Εφαρμογή στο κτίριο γενικών αποθηκών Ελλάδος στο λιμάνι της Θεσσαλονίκης:
Creators: name: Παλαμιτζόγλου, Μαρία Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2010
Subjects: subject: Ενεργειακή αναβάθμιση
subject: ΟΛΘ
subject: Κτίριο
subject: Energy upgrading
subject: Port of Thessaloniki
subject: Building
subject: FOS: Civil engineering

description: Σκοπός της παρούσας διπλωματικής εργασίας είναι η κατά το δυνατό πληρέστερη μελέτη των τεχνικών βελτίωσης της ενεργειακής απόδοσης των υφιστάμενων κτιρίων, καθώς και η εξέταση της δυνατότητας εφαρμογής αυτών στο κτίριο γενικών αποθηκών του Ο.Λ.Θ. Συγκεκριμένα, η διπλωματική αυτή εργασία αποτελείται από δύο μέρη. Στο πρώτο μέρος, το οποίο αναπτύσσεται σε τρία κεφάλαια, γίνεται αναφορά στις συνθήκες κατανάλωσης ενέργειας στον κτιριακό τομέα, καθώς και στις απαιτούμενες συνθήκες άνεσης στο εσωτερικό των κτιρίων, ενώ αναλύονται διεξοδικά οι δυνατές τεχνικές λύσεις και μέθοδοι που εφαρμόζονται, προκειμένου να επιτευχθεί βελτίωση της ενεργειακής συμπεριφοράς των κτιρίων. Στο δεύτερο μέρος, μελετάται το κτίριο γενικών αποθηκών του ΟΛΘ. Αρχικά γίνεται μία παρουσίαση του κτιρίου, της μορφολογίας του και της παθολογίας του, με πλούσιο φωτογραφικό υλικό, και στη συνέχεια ακολουθεί μία σύντομη περιγραφή της πρότασης επανάχρησης από τον αρμόδιο αρχιτέκτονα μελετητή. Στο σημείο αυτό, γίνεται και μελέτη πυροπροστασίας η οποία επιβάλλεται να προηγηθεί της τελικής διαμόρφωσης της πρότασης. Τέλος, γίνεται πρόταση-εφαρμογή τεχνικών βελτίωσης της ενεργειακής συμπεριφοράς του εν λόγω κτιρίου, ενώ ταυτόχρονα μελετάται η απόδοση της τελικής μορφής του κτιρίου πριν και μετά την ενεργειακή αναβάθμιση, και για διάφορα σενάρια ενεργειακής αναβάθμισης, με το υπολογιστικό εργαλείο Ecotect της εταιρείας Autodesk.
description: The aim of the present thesis is the thorough study of energy efficiency improving techniques in existing buildings, and their applicability in the General Store Building of the Port Agency of Thessaloniki. Specifically, this thesis consists of two parts. The first part, which consists of three chapters, refers to the consuming energy conditions in the building sector and also the comfort conditions that are required for the indoors. At the same time, the possible technique solutions and methods that are used for the improvement of the energy performance of the buildings are being thoroughly analyzed. The second part focuses on the General Store Building of the Port Agency of Thessaloniki itself. In particular, there is a presentation of the building concerning its’ morphology and pathology, using rich photographic material. Then, the proposal for the reuse of the building follows. This proposal is made from the architect designer that is in charge. At this point, a fire-study is imposed prior to the final configuration of the proposal. Finally, the applicability of the energy efficiency improvement techniques at this building is studied, and also the energy performance of it, before and after the energy upgrading building work. This is achieved by using the relevant software Ecotect of Autodesk.
Control of intracelluar Ca²⁺ in epithelial cells of the kidney thick ascending limb
Creators: name: Dai, Long-Jun
Publisher: name: University of British Columbia
Year: 2009

description: The cortical thick ascending limb of Henle’s loop (cTAL) plays a fundamental role in salt reabsorption and concentration-dilution processes within the nephron. This study was performed to characterize the role of intracellular free Ca²⁺ ([Ca²⁺]i) in hormone-mediated signal transduction and to describe the function of Na⁺/Ca²⁺ exchange in control of [Ca²⁺]i in isolated cTAL cells from porcine kidney. Parathyroid hormone, arginine vasopressin, and atrial natriuretic peptide transiently increased [Ca²⁺]i, in a dose-dependent manner. The increment in [Ca²⁺]i induced by these hormones was by intracellular release and entry through plasma membrane Ca²⁺ channels. These hormone-induced Ca²⁺ transients were modulated by cAMP, cGMP, and PKC activation. In order for intracellular Ca²⁺ to play a role in signal transduction mechanisms it is necessary to have regulated processes which maintain [Ca²⁺]i at submicromolar levels. We evaluated the functional role of Na⁺/Ca²⁺ exchange in cTAL cells. cTAL cells treated with ouabain had basal [Ca²⁺]i 86±2 nM. Removal of external Na⁺ or voltage depolarization with KC1 resulted in rapid and reversible maximal elevation of [Ca²⁺]i 1023 ±72 nM (n=28), which was dependent on the presence of external Ca²⁺ and elevated [Na⁺]i. The activity of Na⁺/ Ca²⁺ exchange was modulated by protein phosphorylation as calmodulin inhibition decreased and phosphatase inhibition increased the apparent exchange activity. The presence of a Na⁺/ Ca²⁺ exchanger was confirmed with northern hybridization techniques. A gene transcript which encodes a portion of the intracellular ioop of the renal Na⁺/ Ca²⁺ exchanger was amplified from cortical tissue and cTAL cells by polymerase chain reaction (PCR) using primers flanking the alternative splicing site. Southern hybridization and DNA sequencing demonstrated the isoform contained exons B and D characteristic of one isoform (NACA3) of the renal Na⁺/ Ca²⁺ exchanger. The results provide both functional and molecular evidence for a N2aICa exchanger in cTAL cells of the porcine kidney. It is likely that Na⁺/ Ca²⁺ exchange plays an important role in [Ca²⁺]i control and thus hormonal regulation of electrolyte reabsorption within the cTAL cells.
Crop diversification through crop mix optimization can alleviate soil antibiotic stresses
Creators: name: Zhao
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 300203
subject: Agricultural land planning
classificationCode: 300206
subject: Agricultural spatial analysis and modelling
classificationCode: 300210
subject: Sustainable agricultural development
classificationCode: 370999
subject: Physical geography and environmental geoscience not elsewhere classified

description: We integrated machine learning, multi-objective optimization, and spatial planning models to develop a comprehensive framework for analyzing and optimizing global crop distribution. This methodological framework enables us to identify which specific crops play a critical role in influencing soil antibiotic pollution, to determine where and to what extent crop redistribution should be performed for maximum agricultural and environmental outcomes. This approach addresses key questions about the feasibility of achieving both reduced antibiotic pollution and increased crop diversity through optimized crop management, providing valuable insights into targeted crop redistribution strategies.
Detecting a network of hijacked journals by its archive
Creators: name: Abalkina, Anna
Publisher: name: arXiv
Year: 2021
Subjects: subject: Digital Libraries (cs.DL)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: This study describes a method to detect hijacked journals based on the analysis of the archives of clone journals. This approach is most effective in discovering a network of hijacked journals that have the same organizer(s). Analysis of the archives of clone journals allowed to detect 62 URLs of hijacked journals. It also provided the possibility to predict two clone websites before they became operational. This study shows that most detected hijacked journals represent a network of clone journals organized by one or several fraudulent individuals. The information and content of nine legitimate journals were compromised in international and national scientometric databases.
description: 31 pages, 2 figures, list of hijacked journals
Additional file 1 of Transcriptional activity of transposable elements along an elevational gradient in Arabidopsis arenosa
Creators: name: Wos, Guillaume
name: Rimjhim Roy Choudhury
name: Kolář, Filip
name: Parisod, Christian
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Fig. S1. Number of consensus TE sequences (N = 2245) for each class I and class II subclass. Fig. S2. Proportion of genomic reads (N = 71 individuals) aligning on (A) class I and class II, (B) class I subclasses and (C) class II subclasses, for each region and ecotype. NT = Niedere Tauern (Austria), FG = Făgăraș (Romania), VT = Vysoké Tatry (Slovakia), ZT = Západné Tatry (Slovakia). VT region is diploid and the three others regions are tetraploid. Fig. S3. Proportion of RNAseq reads (N = 96 individuals) aligning on (A) class I and class II, (B) class I subclasses and (C) class II subclasses, for each region and ecotype. NT = Niedere Tauern (Austria), FG = Făgăraș (Romania), VT = Vysoké Tatry (Slovakia), ZT = Západné Tatry (Slovakia). VT region is diploid and the three others regions are tetraploid. Table S1. Pearson correlation coefficient between expression and abundance values. For each region, we correlated expression of the consensus sequences more expressed in foothill and alpine ecotype with abundance. Expression and abundance values were averaged across all individuals of the same population. NT = Niedere Tauern (Austria), FG = Făgăraș (Romania), VT = Vysoké Tatry (Slovakia), ZT = Západné Tatry (Slovakia). Table S6. Table shows the effect of treatment, ecotype, region and ecotype*region on expression of LTR Copia and Gypsy clades. Table shows F-value, significance is indicated by *** P
Potential asteroid discoveries by the ESA Gaia mission: Results from follow-up observations
Creators: name: Carry, B.
name: Thuillot, W.
name: Spoto, F.
name: David, P.
name: Berthier, J.
name: Tanga, P.
name: Mignard, F.
name: Bouquillon, S.
name: Mendez, R . A.
name: Rivet, J. -P.
name: Van Suu, A. Le
name: Dell'Oro, A.
name: Fedorets, G.
name: Frezouls, B.
name: Granvik, M.
name: Guiraud, J.
name: Muinonen, K.
name: Panem, C.
name: Pauwels, T.
name: Roux, W.
name: Walmsley, G.
name: Petit, J. -M.
name: Abe, L.
name: azian, V. Ayv
name: Baillié, K.
name: Baransky, A.
name: Bendjoya, P.
name: Dennefeld, M.
name: Desmars, J.
name: Eggl, S.
name: Godunova, V.
name: Hestroffer, D .
name: Inasaridze, R.
name: Kashuba, V.
name: Krugly, Y. N.
name: Molotov, I. E.
name: Robert, V.
name: Simon, A.
name: Sokolov, I.
name: Souami, D.
name: Tarady, V.
name: Taris, F.
name: Troianskyi, V.
name: Vasylenko, V.
name: Vernet, D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Since July 2014, the ESA Gaia mission has been surveying the entire sky down to magnitude 20.7 in the visible. In addition to the millions of stars, thousands of Solar System Objects (SSOs) are observed daily. By comparing their positions to those of known objects, a daily processing pipeline filters known objects from potential discoveries. However, owing to Gaia's specific scanning law designed for stars, potential newly discovered moving objects are characterized by very few observations, acquired over a limited time. This aspect was recognized early in the design of the Gaia data processing. A daily processing pipeline dedicated to these candidate discoveries was set up to release calls for observations to a network of ground-based telescopes. Their aim is to acquire follow-up astrometry and to characterize these objects. From the astrometry measured by Gaia, preliminary orbital solutions are determined, allowing to predict the position of these potentially new discovered objects in the sky accounting for the large parallax between Gaia and the Earth (separated by 0.01 au). A specific task within the Gaia Consortium has been responsible for the distribution of requests for follow-up observations of potential Gaia SSO discoveries. Since late 2016, these calls for observations (called alerts) are published daily via a Web interface, freely available to anyone world-wide. Between November 2016 and July 2020, over 1700 alerts have been published, leading to the successful recovery of more than 200 objects. Among those, six have provisional designation assigned with the Gaia observations, the others being previously known objects with poorly characterized orbits, precluding identification at the time of Gaia observations. There is a clear trend for objects with a high inclination to be unidentified, revealing a clear bias in the current census of SSOs against high inclination populations.
description: Submitted to Astronomy & Astrophysics
Non-local effects in the plasmons of strongly interacting nanoparticles, dimers, and waveguides
Creators: name: de Abajo, F. Javier Garcia
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Non-local effects in the optical response of noble metals are shown to produce significant blueshift and near-field quenching of plasmons in nanoparticle dimers, nanoshells, and thin metal waveguides. Compared with a local description relying on the use of frequency-dependent dielectric functions, we predict resonance shifts as large as 10% and field-intensity reduction of an order of magnitude at inter-particle distances or metal thicknesses below 2 Å. Our results are based upon the specular-reflection model combined with a suitable non-local extension of measured local dielectric functions. We present a roadmap to design plasmon resonances in nanometer metallic elements with application to optical antennas and improved photovoltaic, light-emitting, and sensing devices.
description: 5 pages, 6 figures
Critical Appraisal of the Accreditation Status of Colleges in Rajasthan, India on Quality Indicators of National Assessment and Accreditation Council
Creators: name: Gupta, Shruti
name: Tyagi, Shuchi
name: Shukla, Sunil Dutt
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 390303
subject: Higher education
classificationCode: 390403
subject: Educational administration, management and leadership

description: The present study discusses the accreditation status of colleges in Rajasthan, India, based on the National Assessment and Accreditation Council (NAAC) assessment process in terms of Criteria wise analysis. The Paper analyzes grades of colleges based on administration type (Government and Private), Gender (Co-Educational and Girls), Type of College (General, Technical, Sanskrit and Specific Colleges) and level of college (Undergraduate and Postgraduate). The general observation is that colleges in Rajasthan are performing moderately. Results of the study indicate Government colleges are performing better with an average CGPA of 2.55, and technical colleges are better performers with an average CGPA of 2.75 compared to other institutes. Girls' colleges have CGPA of 2.87 while Co-educational colleges have 2.51; likewise, the postgraduate colleges ranked better (CGPA 2.59) in comparison to undergraduate colleges. Criterion-wise analysis reveals that the better performing criteria are criteria 2; for criteria 3 (Research, Consultancy, and Extensions) for all institution types, average CGPA is very low. The colleges in Rajasthan have great potential for getting accredited by NAAC. Constant and rigorous efforts in the right direction will help in scoring a good CGPA from NAAC.
The "PISCO" speckle camera at Pic du Midi Observatory
Creators: name: Prieur, Jean-Louis
name: Koechlin, Laurent
name: André, Christine
name: Gallou, Gérard
name: Lucuix, Christian
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a new speckle camera designed and built at Observatoire Midi-Pyrénées. This focal instrument has been used for four years with the 2-meter Bernard Lyot Telescope of Pic du Midi observatory. It can be set in various operating modes: full pupil imaging, masked-pupil imaging, spectroscopy, wave-front sensor and stellar coronagraphy, hence its name "PISCO" ("Pupil Interferometry Speckle COronagraph"). Restored images of double and triple stars have demonstrated its capabilities in providing close to diffraction limited images (0.06 arcsec in V). PISCO has been fully tested and is now ready to be used by the whole astronomical community.
Highly Tunable Junctions and Nonlocal Josephson Effect in Magic Angle Graphene Tunneling Devices
Creators: name: Rodan-Legrain, Daniel
name: Cao, Yuan
name: Park, Jeong Min
name: de la Barrera, Sergio C.
name: Randeria, Mallika T.
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Jarillo-Herrero, Pablo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Magic-angle twisted bilayer graphene (MATBG) has recently emerged as a highly tunable two-dimensional (2D) material platform exhibiting a wide range of phases, such as metal, insulator, and superconductor states. Local electrostatic control over these phases may enable the creation of versatile quantum devices that were previously not achievable in other single material platforms. Here, we exploit the electrical tunability of MATBG to engineer Josephson junctions and tunneling transistors all within one material, defined solely by electrostatic gates. Our multi-gated device geometry offers complete control over the Josephson junction, with the ability to independently tune the weak link, barriers, and tunneling electrodes. We show that these purely 2D MATBG Josephson junctions exhibit nonlocal electrodynamics in a magnetic field, in agreement with the Pearl theory for ultrathin superconductors. Utilizing the intrinsic bandgaps of MATBG, we also demonstrate monolithic edge tunneling spectroscopy within the same MATBG devices and measure the energy spectrum of MATBG in the superconducting phase. Furthermore, by inducing a double barrier geometry, the devices can be operated as a single-electron transistor, exhibiting Coulomb blockade. These MATBG tunneling devices, with versatile functionality encompassed within a single material, may find applications in graphene-based tunable superconducting qubits, on-chip superconducting circuits, and electromagnetic sensing in next-generation quantum nanoelectronics.
Structured Gradient Descent for Fast Robust Low-Rank Hankel Matrix Completion
Creators: name: Cai, HanQin
name: Cai, Jian-Feng
name: You, Juntao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Theory (cs.IT)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We study the robust matrix completion problem for the low-rank Hankel matrix, which detects the sparse corruptions caused by extreme outliers while we try to recover the original Hankel matrix from the partial observation. In this paper, we explore the convenient Hankel structure and propose a novel non-convex algorithm, coined Hankel Structured Gradient Descent (HSGD), for large-scale robust Hankel matrix completion problems. HSGD is highly computing- and sample-efficient compared to the state-of-the-arts. The recovery guarantee with a linear convergence rate has been established for HSGD under some mild assumptions. The empirical advantages of HSGD are verified on both synthetic datasets and real-world nuclear magnetic resonance signals.
Aποτίμηση φέρουσας ικανότητας και προτάσεις ενίσχυσης της έπαυλης Σωσσίδη – πρώην Σωσσίδειο γηροκομείο Βέροιας
Creators: name: Τσιρώνη, Κωνσταντίνα Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2010
Subjects: Ενίσχυση
Βέροια
Φέρουσα τοιχοποιία
Retrofit
Veroia
Masonry

description: Το αντικείμενο της υπόψη διπλωματικής εργασίας αφορά στη στατική μελέτη αποκατάστασης αγροτικής έπαυλης στην πόλη της Βέροιας, με σκοπό την επανάχρησή της από το σύλλογο «Πρωτοβουλία για το παιδί» ως στέγη για παιδιά που βρίσκονται σε ανάγκη ή σε κίνδυνο. Η αρχιτεκτονική πρόταση είναι της αχιτέκτονα Βιργινίας Πατρίκα. Πρόκειται για κτίριο κατασκευασμένο το 1924 βάσει σχεδίων Βέλγων μηχανικών. Εκτείνεται σε τρία επίπεδα, κατασκευασμένα από λιθοδομή τοπικού πωρόλιθου και οπτοπλινθοδομή πλήρων πλίνθων. Το κτίριο έχει ξύλινα πατώματα αλλά και πλάκες Ο/Σ ενώ καλύπτεται από ξύλινη στέγη. Η παθολογία του, έγκειται σε αυτή των υλικών και οφείλεται στη χρόνια εγκατάλειψη και έλλειψη συντήρησης του κτιρίου.Μελετάται η φέρουσα ικανότητα του κτιρίου και διαστασιολογείται λεπτομερώς η πρόταση ενίσχυσής του.
description: Τhe main objective of this thesis is to assess the bearing capacity and to investigate the retrofit solutions of the Sossidi’s villa located at the town of Veroia. The study proceeds in the context of a strict approach, in terms of meeting all the challenges derived from the rehabilitation proposal referring to a contemporary youth shelter, as described in the parallel architectural study of Virginia Patrika. The building, built in 1924, was designed by Belgian architects in three storey levels, contributing to a rather complex masonry structural system of different materials (i.e. local rock and brick specimens were identified). Floors were generally constructed from wood elements; albeit reinforced concrete slabs are located in a few areas, while the wooden roof is comprised of different planes with high inclination. Damage was mostly identified in terms of material degradation due to the total lack of conservation activities. Bearing capacity is assessed whereas a detailed retrofit solution of the building regarding concrete jacketing is being presented.