cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quelle gestion didactique de la résolution de tâches mathématiques en classe d'accueil ? Revue internationale de communication et de socialisation, 3(2), 215-237
Creators: name: Koudogbo, Jeanne
name: Théis, Laurent
name: Marie-Pier Morin
Publisher: name: figshare
Year: 2020
Subjects: Education

description: Les contraintes langagières qui pèsent sur l’enseignement en classe d’accueil constituent un défi important pour l’apprentissage des mathématiques. Dans cet article, nous analysons les moyens créés par une enseignante, dans le cadre d’une recherche collaborative, pour favoriser l’entrée dans la tâche et soutenir les élèves allophones dans la résolution de tâches mathématiques. Nous dégageons les apports et les limites de ces moyens et montrons qu’une partie des difficultés auxquelles font face enseignante et élèves allophones peut résider dans le type de tâche mathématique proposée à l’élève, mais aussi dans la gestion didactique insitu. Situant les moyens créés dans les pratiques d’enseignant, nous discutons des composantes institutionnelle, sociale, personnelle, cognitive et médiative. Les résultats contribuent à formuler l’hypothèse selon ce qui peut être rattaché aux invariants des pratiques ou aux spécificités de la classe d’accueil.
Shock (Blast) Mitigation by "Soft" Condensed Matter
Creators: name: Nesterenko, Vitali F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: It is a common point that "soft" condensed matter (like granular materials or foams) can reduce damage caused by impact or explosion. It is attributed to their ability to absorb significant energy. This is certainly the case for a quasistatic type of deformation at low velocity of impact where such materials are widely used for packing of fragile devices. At the same time a mitigation of blast phenomena must take into account shock wave properties of "soft" matter which very often exhibit highly nonlinear, highly heterogeneous and dissipative behavior. This paper considers applications of "soft" condensed matter for blast mitigation using simplified approach, presents analysis of some anomalous effects and suggestions for future research in this exciting area.
description: 12 pages, 12 figures
The Opportunity Cost of Land Use and the Global Potential for Greenhouse Gas Mitigation in Agriculture and Forestry
Creators: name: Golub, Alla
name: Hertel, Thomas
name: Lee, Huey-Lin
name: Rose, Steven
name: Sohngen, Brent
name: Golub, Alla
name: Hertel, Thomas
name: Lee, Huey-Lin
name: Rose, Steven
name: Sohngen, Brent
Publisher: name: Unknown
Year: 2008
Subjects: Land Economics/Use

description: This paper analyzes the role of global land-use in determining potential greenhouse gas mitigation by land-based activities in agriculture and forestry. Land-based activities are responsible for over a third of global greenhouse gas emissions, yet the economics of land-use decisions have not been explicitly modeled in global mitigation studies. In this paper, we develop a new, general equilibrium framework which effectively captures the opportunity costs of land-use decisions in agriculture and forestry, thereby allowing us to analyze competition for heterogeneous land types across and within sectors and input substitution between land and other factors of production. In our analysis of carbon taxation, we find significant changes in the global pattern of comparative advantage as a result of differential mitigation costs across sectors, regions, and land types. We find that forest carbon sequestration is the dominant strategy for GHG emissions mitigation globally in the land using sectors. However, when compared to the rest of the world, land-use emissions abatement in the US and China comes disproportionately from agriculture, and, within agriculture, disproportionately from reductions in fertilizer-related emissions. In the world as a whole, agriculture-related mitigation comes predominantly from reduced methane emissions in the ruminant livestock sector, followed by fertilizer and methane emissions from paddy rice. The results also show how analyses that only consider regional mitigation may under- or over-estimate mitigation potential. For example, U.S.-specific analyses likely over-estimate the potential for abatement in agriculture. Finally, we note that this general equilibrium framework provides the research community with a practical methodology for explicit modeling of global land competition and land-based mitigation in comprehensive assessments of greenhouse gas mitigation options.
Letter from the editor
Creators: name: Kwon, Jae-Yung
Publisher: name: The University of British Columbia
Year: 2013

description: [A letter from Jae-Young Kwon, the UBC-NSJ Coordinator and Editor of the University of British Columbia nursing student journal.][The complete version of University of British Columbia nursing student journal for 2013 is available at: http://hdl.handle.net/2429/45164]
Properties and applications of some special integer number sequences
Creators: name: Flaut, Cristina
name: Savin, Diana
name: Zaharia, Geanina
Publisher: name: arXiv
Year: 2020
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: In this paper, we provide properties and applications of some special integer sequences. We generalize and give some properties of Pisano period. Moreover, we provide a new application in Cryptography and applications of some quaternion elements.
In situ dust measurements from RPW/TDS instrument on Solar Orbiter mission
Creators: name: Babic, Kristina Rackovic
name: Issautier, Karine
name: Zaslavsky, Arnaud
Publisher: name: Zenodo
Year: 2021
Subjects: Interplanetary dust; Solar system

description: Dust particles represent an important fraction of the matter composing the interplanetary medium. The large number and broad diversity of dust particles lead to in situ dust measurements that are based on the detection of the charges generated by dust impacts. We study the electric signals produced by these impacts, using the waveform sampler data produced by the TDS subsystem of the Radio and Plasma Wave instrument aboard Solar Orbiter. We used impulsive voltage signals measurements to determine typical shapes, features, and fluxes of these signals from the beginning of the mission. Since Solar orbiter missions will explore the inner-heliosphere, radio dust detection will be a unique opportunity to provide the first-ever in-situ measurements of cosmic dust close to the Sun and constrain dust evolution models.
Why Isnâ€™t the Doha Development Agenda More Poverty Friendly?
Creators: name: Hertel, Thomas W.
name: Keeney, Roman
name: Ivanic, Maros
name: Winters, Alan L.
name: Hertel, Thomas W.
name: Keeney, Roman
name: Ivanic, Maros
name: Winters, Alan L.
Publisher: name: Unknown
Year: 2007
Subjects: subject: International Relations/Trade
subject: WTO
subject: Poverty
subject: Trade Liberalization
subject: Doha Development Agenda
subject: Agricultural Trade

description: The breakdown of the WTO negotiations under the Doha Development Agenda has inspired critics to highlight the lack of effort on the part of rich countries to reform their agricultural policies. In this paper, we focus instead the poverty impacts of developing country tariff cuts â€“ particularly those in agriculture. We argue that the Doha Development Agenda is fundamentally less poverty-friendly than it could be -- in large part due to the absence of tariff cuts on staple food products in developing countries. Such cuts would give the poor access to food at world prices, thereby reducing the cost of living at the poverty line. We also explore the contention that such tariff cuts will hurt the poor working in agriculture. Based on our analysis of the impacts of multilateral trade policy reforms on a sample of fifteen developing countries, we find there is some evidence of poverty increases in agriculture. However, such effects are minimized by ensuring that agricultural tariffs are cut in all developing countries. Overall, the poverty-reducing impact of lower food prices dominates; we conclude that the Doha Development Agenda would be more poverty friendly if it were to include deeper cuts in developing country agricultural tariffs. This contrasts sharply with calls for special products exemptions by many developing country advocates.
Polarization effects in Kerr black hole shadow due to the coupling between photon and bumblebee field
Creators: name: Chen, Songbai
name: Wang, Mingzhi
name: Jing, Jiliang
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present firstly the equation of motion for the photon coupled to a special bumblebee vector field in a Kerr black hole spacetime and find that the propagation of light depends on its polarization due to the birefringence phenomenon. The dependence of black hole shadow on the light's polarization is dominated by the rotation of black hole. In the non-rotating case, we find that the black hole shadow is independent of the polarization of light. However, the status is changed in the rotating case, in which the black hole shadow depends on the light's polarization and the coupling between bumblebee vector field and electromagnetic field. These features of black hole shadow casted by polarized lights could help us to understand the bumblebee vector field with Lorentz symmetry breaking and its interaction with electromagnetic field.
description: 16 pages, 8 figures. Some references are added and accepted for pubication in JHEP
Τεχνικές Mηχανικής Mάθησης για την Συσταδοποίηση Πελατών
Creators: name: Μιλτιάδους, Ανδρέας Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Κ- κέντρα Συσταδοποίηση
Ιεραρχική Συσταδοποίηση
Δέντρα Απόφασης
K-means clustering
Hierarchical clustering
Decision Trees

description: Σκοπός της διπλωματικής ήταν η μελέτη των τεχνικών συσταδοποήησης σε δεδομένα πραγματικού κόσμου φαρμακευτικής εταιρίας. Στην αρχή εξετάσαμε θεωρητικά το αλγοριθμικό και μαθηματικό υπόβαθρο της μηχανικής μάθησης και των τεχνικών συσταδοποίησης που χρησιμοποιήθηκαν (κ-μέσων, ιεραρχική συσταδοποιηση). Στην συνέχεια περιγράφηκαν τα εργαλεία που χρησιμοποιήσαμε για την υλοποίηση της συσταδοποίησης των πελατών μιας φαρμακευτικής πλατφόρμας. Στην συνέχεια έγινε ανάλυση της προγραμματιστικής υλοποίησης ολόκληρης της διαδικασίας από την παραλαβή των δεδομένων ως την υλοποίηση και ανάλυση των αποτελεσμάτων της συσταδοποίησης, καθώς και έγινε εφαρμογή αλγορίθμου δημιουργίας δέντρου ταξινόμησης (J48) για τα αποτελέσματα αυτά. Τέλος, έγινε η ανάλυση των αποτελεσμάτων και η δημιουργία προτάσεων αξιοποίησης τους.
description: The aim of the present thesis was the study of some clustering methods on real-world datasets of a pharmaceutical platform. Firstly, we examined theoretically the algorithmic and mathematic background of Machine Learning and of the Clustering Algorithms that were used (k-means and Hierarchical clustering). Next, we described the tools used to achieve the clustering of the clients of this pharmaceutical platform. Moreover, we analyzed the programming procedure for the coding of the whole process, from getting the datasets to implement and analyze the results of the clustering algorithms. Also, we used a sorting tree creation algorithm (J48) for the clustering results. At last, we analyzed the results and made suggestions on how they could be of use.
Ασφάλεια Πληροφοριακών Συστημάτων και Τεχνητή Νοημοσύνη
Creators: name: Χειμωνίδης, Παύλος Θεοδώρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Πληροφορική
Τεχνητή Νοημοσύνη
Ασφάλεια Πληροφοριακών Συστημάτων
Informatics
Artificial Intelligence
Information Security Systems

description: To θέμα της παρούσας διπλωματικής εργασίας είναι να αναδείξει την λειτουργία συγκεκριμένων μηχανισμών ασφάλειας και πως αυτοί βελτιώθηκαν με την χρήση της τεχνολογίας της τεχνητής νοημοσύνης. Πιο συγκεκριμένα, η παρούσα μελέτη εστιάζει σε δύο (2) εκ των κορυφαίων μηχανισμών ασφάλειας που χρησιμοποιούνται σήμερα, τα συστήματα ανίχνευσης εισβολών και τα συστήματα SIEM, προκειμένου να αποτραπούν οι ολοένα και πιο πολύπλοκες κυβερνοεπιθέσεις. Τα δύο (2) προαναφερόμενα συστήματα κάνουν χρήση πολλών τεχνικών και τεχνολογιών που προέρχονται από το πεδίο της τεχνητής νοημοσύνης προκειμένου να αυξήσουν την αποδοτικότητά τους. Στόχος της παρούσας εργασίας είναι να αναδείξει την σημαντικότητα της τεχνολογίας της τεχνητής νοημοσύνης στην ασφάλεια των πληροφοριακών συστημάτων.
description: The subject of this thesis is to highlight the operation of specific security systems and how they have been improved with the use of artificial intelligence technology. Specifically, the present study focuses on two (2) of the most advanced information security systems that are being used today, the intrusion detection systems and the SIEM, in order to prevent the increasing and more complex cyberattacks. The two (2) aforementioned systems are using many techniques which are coming from the field of artificial intelligence, in order to increase their efficiency. The goal of this thesis is to highlight the importance of artificial intelligence in information systems security.
Why, How and When did GTAP Happen? What has it Achieved? Where is it Heading?
Creators: name: Powell, Alan A.
name: Powell, Alan A.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: The GTAP Data Base and extensions

description: Presented at the 10th Annual Conference on Global Economic Analysis, Purdue University, USA Team research has been much more widespread in the natural sciences than in economics. Yet when it comes to modeling an economy (especially the global economy) in detail, the quantity and range of inputs necessary makes team work the only viable option. Drawing some inspiration from Australian experience, GTAPâ€™s founder, Tom Hertel, realized this from his Projectâ€™s inception in 1993. The data base required to model international trade flows could not have been developed without the enthusiastic cooperation of many individuals and institutions around the world. Funding GTAPâ€™s central team at Purdue required external support. National agencies in Australia, Denmark, France, Germany, Holland, Japan, and the US are members of the supporting research consortium. The natural interest of international economic agencies led to GTAP having five such supporting agencies by 1997, which grew to ten by 2006. GTAP has striven to put the maximum feasible amount of its data, methodology and models into the public domain. It has run numerous residential intensive training courses in the use of the GTAP data and model: these have been held in the US, Europe, Africa, Asia and Latin America. The success of these courses reflects the modeling experience of the teams of course instructors and the availability of special-purpose software which allows simulations to be run without programming skill or previous knowledge of the software used. Researchers making use of GTAP have been prolific in number, and in their output. In mid April 2007, applications on the GTAP web site numbered 781. There were 366 subscribers to the GTAP data base at the end of April 2007, but the number of individuals making use of GTAP data exceeded 4,000.
Microlensing and Photon Bunching: The impact of decoherence
Creators: name: Lewis, Geraint F.
name: Tuthill, Peter
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Gravitational microlensing within the Galaxy offers the prospect of probing the details of distant stellar sources, as well as revealing the distribution of compact (and potentially non-luminous) masses along the line-of-sight. Recently, it has been suggested that additional constraints on the lensing properties can be determined through the measurement of the time delay between images through the correlation of the bunching of photon arrival times; an application of the Hanbury-Brown Twiss effect. In this paper, we revisit this analysis, examining the impact of decoherence of the radiation from a spatially extended source along the multiple paths to an observer. The result is that, for physically reasonable situations, such decoherence completely erases any correlation that could otherwise be used to measure the gravitational lensing time delay. Indeed, the divergent light paths traverse extremely long effective baselines at the lens plane, corresponding to extremes of angular resolving power well beyond those attainable with any terrestrial technologies; the drawback being that few conceivable celestial objects would be sufficiently compact with high enough surface brightness to yield usable signals.
description: 4 pages, 1 figure, accepted for publication in MNRAS
EKONOMETRIKADAGI INNOVATSION YECHIMLAR
Creators: name: Fattoyev, Elbek
Publisher: name: Zenodo
Year: 2024

description: Maqolada ekonometrika fanini o‘qitishda zamonaviy axborot texnologiyalaridan foydalanish orqali dars samaradorligini oshirish masalalari chuqur tahlil qilinadi. Xususan, Matrixer 5.1 dasturi yordamida korrelyatsiya va regressiya tahlillarini amalga oshirish bo‘yicha amaliy misollar keltiriladi. Shuningdek, GeoGebra va MS Excel dasturlarining iqtisodiy masalalarni yechishda qo‘llanilishi batafsil ko‘rib chiqiladi. Maqolada zamonaviy dasturlarni o‘quv jarayonida qo‘llashning afzalliklari, talabalarning axborot madaniyatini oshirishdagi ahamiyati va o‘qituvchilarning kompyuter dasturlari bilan ishlash malakalarini rivojlantirish zarurligi yoritilgan.
Land Use in Computable General Equilibrium Models: An Overview
Creators: name: Hertel, Thomas W.
name: Rose, Steven
name: Tol, Richard S.J.
name: Hertel, Thomas W.
name: Rose, Steven
name: Tol, Richard S.J.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Environmental Economics and Policy
subject: Climate change policy
subject: Calibration and parameter estimation

description: Chapter 1 of the forthcoming book "Economic Analysis of Land Use in Global Climate Change Policy," edited by Thomas W. Hertel, Steven Rose, and Richard S.J. Tol
On the maintenance of an attached leading-edge vortex via model bird alula
Creators: name: Linehan, Thomas
name: Mohseni, Kamran
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Researchers have hypothesized that the post-stall lift benefit of bird's alular feathers, or alula, stems from the maintenance of an attached leading-edge vortex (LEV) over their thin-profiled, outer hand-wing. Here, we investigate the connection between the alula and LEV attachment via flow measurements in a wind tunnel. We show that a model alula, whose wetted area is 1% that of the wing, stabilizes a recirculatory aft-tilted LEV on a steadily-translating unswept wing inclined at post-stall incidences. The attached vortex is the result of the alula's ability to smoothly merge otherwise separate leading- and side-edge vortical flows. We identify two key processes that facilitate this merging: i) the steering of spanwise vorticity generated at the wing's leading edge back to the wing plane and ii) an aft-located wall-jet of high-magnitude root-to-tip spanwise flow (>80% that of the freestream velocity). The latter feature induces LEV roll-up while the former feature tilts LEV vorticity aft and evacuates this flow toward the wing tip via an outboard vorticity flux. We identify the alula's streamwise position (relative to the leading-edge of the thin wing) as important for vortex steering and the alula's cant angle as important for high-magnitude spanwise flow generation. These findings advance our understanding of the likely ways bird's leverage LEVs to augment slow flight.
Global Agricultural Land Use Data for Climate Change Analysis
Creators: name: Monfreda, Chad
name: Ramankutty, Navin
name: Hertel, Thomas W.
name: Monfreda, Chad
name: Ramankutty, Navin
name: Hertel, Thomas W.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Environmental Economics and Policy
subject: Climate change policy
subject: Calibration and parameter estimation
subject: The GTAP Data Base and extensions

description: Chapter 2 of the forthcoming book "Economic Analysis of Land Use in Global Climate Change Policy," edited by Thomas W. Hertel, Steven Rose, and Richard S.J. Tol
Η διακονία του κηρύγματος στην αρχιεπισκοπή Κωνσταντινουπόλεως την περίοδο 1880-1900, όπως παρουσιάζεται μέσα από τις σελίδες της « Εκκλησιαστικής Αλήθειας»
Creators: name: Μαρκόπουλος, Κωνσταντίνος Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Κήρυγμα
Εκκλησιαστική Αλήθεια
Αρχιεπισκοπή Κωνσταντινουπόλεως
Sermon
Ecclesiastical Truth
Archdiocese of Constantinople

description: Σκοπός της παρούσας εργασίας είναι η κατάδειξη των ενεργειών της Αρχιεπισκοπής Κωνσταντινουπόλεως που αφορά τη διακονία του κηρύγματος, όπως παρουσιάζεται στις δημοσιεύσεις της «Εκκλησιαστικής Αλήθειας» κατά τα έτη 1880 – 1900. Αρχικά παρουσιάσαμε την εξέλιξη και τη διαμόρφωση του κηρύγματος από τον Κύριο μέχρι την εξεταζόμενη περίοδο δημιουργώντας συγκριτική αντίληψη. Στη συνέχεια καταγράψαμε τις δημοσιευμένες παρατηρήσεις, εντυπώσεις και συμβουλές ειδικών γνωστικά με το κήρυγμα, με στόχο τη διόρθωση των κακώς κειμένων από τους ιεροκήρυκες της εποχής. Εντοπίσαμε τις ενέργειες της Αρχιεπισκοπής για την ανάπτυξη και τη πρόοδο του κηρύγματος. Παρακάτω παρουσιάσαμε τους ιεροκήρυκες της Αρχιεπισκοπής καθώς επίσης και τους ιερούς ναούς των ενοριών της για να διαπιστωθεί, αν καλύπτονταν κηρυγματικά. Μελετήσαμε τη θεματολογία των κηρυγμάτων για να εξακριβωθεί, αν θεράπευαν τις πνευματικές ανάγκες του ποιμνίου και τέλος, μελετήσαμε τα κείμενα των δημοσιευμένων κηρυγμάτων των ιεροκηρύκων εξετάζοντας τη δομή και την ανάπτυξη τους σύμφωνα με τη διαμορφωμένη τεχνολογικά μορφή του κηρύγματος.
description: The purpose of this paper is to demonstrate the actions of the Archdiocese of Constantinople regarding the ministry of preaching, as presented in the publications of ΄΄Ecclesiastical Truth΄΄ during the years 1880-1900. We first presented the evolution and formation of the sermon from the Lord to the examined period, creating a comparative perception. Then, we recorded the published observations, impressions and advice of experts cognitive with the sermon, in order to correct the wrong texts by the preachers of the time. We identified the actions of the archdiocese for the development and progress of the sermon. Below we presented the preachers of the archdiocese as well as the sacred temples of its parishes to determine if they were covered preaching. We studied the subjects of the preachers to ascertain whether they cured the spiritual needs of the flock and finally, we studied the texts of the published preachers of the preachers by examining their structure and development according to the technologically shaped form of the sermon.
description: Σε συνεργασία με: Κοινωνικής Θεολογίας (Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών)
Neel Temperature of Quasi-Low-Dimensional Heisenberg Antiferromagnets
Creators: name: Yasuda, C.
name: Todo, S.
name: Hukushima, K.
name: Alet, F.
name: Keller, M.
name: Troyer, M.
name: Takayama, H.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The Néel temperature, $T_{\rm N}$, of quasi-one- and quasi-two-dimensional antiferromagnetic Heisenberg models on a cubic lattice is calculated by Monte Carlo simulations as a function of inter-chain (inter-layer) to intra-chain (intra-layer) coupling $J'/J$ down to $J'/J\simeq 10^{-3}$. We find that $T_{\rm N}$ obeys a modified random-phase approximation-like relation for small $J'/J$ with an effective universal renormalized coordination number, independent of the size of the spin. Empirical formulae describing $T_{\rm N}$ for a wide range of $J'$ and useful for the analysis of experimental measurements are presented.
description: 4 pages, 4 figures, to be published in Phys. Rev. Lett
Ανάπτυξη της ιχθυοκαλλιέργειας στην Ελλάδα, παραγωγή, οικονομικές διαστάσεις και προοπτικές
Creators: name: Δανάτσκος, Χρήστος Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Ιχθυοκαλλιέργεια
Υδατοκαλλιέργεια
Βιοοικονομία
Fish farming
Aquaculture
Bioeconomy

description: Η υδατοκαλλιέργεια στην Ελλάδα, έχει σημειώσει τις τελευταίες δύο δεκαετίες εντυπωσιακή ανάπτυξη με σημαντική συμβολή σε οικονομία και απασχόληση σε κρατικό και τοπικό επίπεδο. Εμφανίζει παραγωγική δραστηριότητα σε όλες σχεδόν τις Περιφέρειες της χώρας, κατέχει το μεγαλύτερο ποσοστό της συνολικής παραγόμενης ποσότητας λαβρακιού και τσιπούρας στην ΕΕ και εμφανίζει εξαγωγές σε Ιταλία, Ισπανία, Ρωσία και Ηνωμένο Βασίλειο. Αποτελεί επίσης προτεραιότητα της στρατηγικής της ΕΕ για τη Γαλάζια Ανάπτυξη ως τομέας που θα μπορούσε να ενισχύσει την οικονομική ανάπτυξη σε ολόκληρη την Ευρώπη και να αποφέρει κοινωνικά οφέλη μέσω νέων θέσεων εργασίας. Η παρούσα εργασία έχει ως αντικείμενο την ανάλυση του κλάδου ιχθυοκαλλιέργειας στην Ελλάδα αλλά και στα πλαίσια της Ευρωπαϊκής Ένωσης. Η ανάλυση περιλαμβάνει την εξέταση των βασικών χαρακτηριστικών του κλάδου ως προς τα παραγόμενα είδη, τα οικονομικά μεγέθη, την οικονομική απόδοση και την απασχόληση. Παρουσιάζεται επίσης η εξέλιξη της παραγωγής του κλάδου ως προς τα βασικά είδη εκτροφής και τα οικονομικά στοιχεία του συνόλου του κλάδου, με παράλληλη εξέταση της διάρθρωσης του κλάδου ως προς τα μεγέθη των επιχειρήσεων που την αποτελούν αλλά και των βασικών αριθμοδεικτών που χαρακτηρίζουν την επιχειρηματική τους δραστηριότητα. Τέλος, εξετάζονται οι προοπτικές του κλάδου βάσει των οικονομικών και ποσοτικών στοιχείων που εμφανίζει αλλά και των περιβαλλοντικών συνθηκών στις οποίες λειτουργεί.
description: The aquaculture sector in Greece has achieved impressive growth over the past two decades with significant contribution to economy and employment at the state and local level. Aquaculture production activity appears in almost all regions of the country, holds the largest proportion of the total quantity of sea bass and sea bream produced in the EU and exports to Italy, Spain, Russia, and the United Kingdom. Aquaculture is also considered a priority of EU’s Blue Growth Strategy as a sector which could boost economic growth across Europe and bring social benefits through new jobs. The purpose of this paper is to analyze the aquaculture sector in Greece and within the European Union. The analysis includes an examination of the key characteristics of the sector in terms of species produced, economic figures, economic performance, and employment. It also presents the evolution of the industry's production in terms of the basic types of farming and the economic data of the whole sector, while examining the structure of the industry in terms of enterprise size and the main indicators that characterize their business performance. Finally, the prospects of the sector are examined based on the economic and quantitative data it produces and the environmental conditions in which it operates.
HUBUNGAN MOTIVASI DAN SIKAP DENGAN KEPATUHAN PERAWAT DALAM PELAKSANAAN HAND HYGIENE
Creators: name: Zainaro, M. Arifki
Publisher: name: figshare
Year: 2020
Subjects: subject: 130209 Medicine, Nursing and Health Curriculum and Pedagogy
subject: FOS: Educational sciences

description: Pendahuluan: Perilaku hand hygiene merupakan salah satu faktor yang mempunyai pengaruh besar terhadap pencegahan terjadinya Tujuan:Diketahui hubungan motivasi dan sikap dengan kepatuhan perawat dalam pelaksanaan hand hygiene Di Ruang Rawat Inap RSUD Dr. A. Dadi Tjokrodipo Kota Bandar Lampung Tahun 2019. Metode: Jenis penelitian kuantitatif dengan pendekatan Crossecional. Sasaran dalam penelitian seluruh perawat di ruang rawat inap E1, E2, E3, E4 sebanyak 46 responden. Waktu penelitian akan dilaksanakan setelah proposal di setujui. Variabel penelitian yaitu kepatuhan perawat dalam pelaksanaan hand hygiene, motivasi, sikap. Pengumpulan data menggunakan kuesioner. Analisis data secara univariat dan bivariat (Chi square). Hasil: Sebagian besar responden memiliki motivasi hand hygiene lemah 23 responden (50,0%), sikap perawat dalam hand hygiene baik sebanyak 24 responden (52,2%), kepatuhan perawat dalam hand hygiene patuh sebanyak 27 responden (58,7%). Hasil analisa data menggunakan uji chi square didapat nilai p-value = 0.004 (<0,05) variabel motivasi dengan kepatuhan perawat, nilai p-value = 0.000 (<0,05) variabel sikap dengan kepatuhan perawat Kesimpulan: Terdapat hubungan motivasi dengan kepatuhan perawat, dan terdapat artinya adahubungan sikap dengan kepatuhan perawat dalam pelaksanaan hand hygiene di ruang rawat inap Rumah Sakit Umum Daerah Dr. A. Dadi Tjokrodipo Kota Bandar Lampung Tahun 2019. Saran diharapkan memberikan motivasi dengan meningkatkan kepatuhan mencuci tangan dalam hand hygiene five moment di ruang rawat inap RSUD Dr. A. Dadi Tjokrodipo Bandar Lampung
Phase-Referenced VLBA Observations of OH Masers at 4765 MHz
Creators: name: Palmer, Patrick
name: Goss, W. M.
name: Devine, K. E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report VLBA observations of maser emission from the rotationally excited doublet Pi 1/2, J=1/2 state of OH at 4765 MHz. We made phase-referenced observations of W3(OH) at both 4765 MHz and 1720 MHz and found emission in three fields within a about 2000 AU diameter region and verified that in two of the three fields, 4765 MHz and 1720 MHz emission arise from the same position to within about 4 mas (about 5 AU diameter emission regions along an approximately N-S arc with linear extent about 500 AU. In addition, we carried out phase-referenced observations of 4765 MHz emission from K3-50. We searched for the 4765 MHz line in W49 (without phase referencing) and W75N (phase-referenced to the strongest 4765 MHz maser feature in DR21EX); we were unable to detect these sources with the VLBA. For 2 1/2 years (including the dates of the VLBA observations), we carried out monitoring observations of 4765 MHz emission with the VLA. Constraints on models for maser emission at 1720 MHz and 4765 MHz are derived from the observations. These observations are then briefly compared with existing models.
description: 30 pages, 7 figures, to be published in Ap. J. (Dec 10, 2003)
Improved tripartite uncertainty relation with quantum memory
Creators: name: Ming, Fei
name: Wang, Dong
name: Fan, Xiao-Gang
name: Shi, Wei-Nan
name: Ye, Liu
name: Chen, Jing-Ling
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Uncertainty principle is a striking and fundamental feature in quantum mechanics distinguishing from classical mechanics. It offers an important lower bound to predict outcomes of two arbitrary incompatible observables measured on a particle. In quantum information theory, this uncertainty principle is popularly formulized in terms of entropy. Here, we present an improvement of tripartite quantum-memory-assisted entropic uncertainty relation. The uncertainty's lower bound is derived by considering mutual information and Holevo quantity. It shows that the bound derived by this method will be tighter than the lower bound in [Phys. Rev. Lett. 103, 020402 (2009)]. Furthermore, regarding a pair of mutual unbiased bases as the incompatibility, our bound will become extremely tight for the three-qubit $\emph{X}$-state system, completely coinciding with the entropy-based uncertainty, and can restore Renes ${\emph{et al.}}$'s bound with respect to arbitrary tripartite pure states. In addition, by applying our lower bound, one can attain the tighter bound of quantum secret key rate, which is of basic importance to enhance the security of quantum key distribution protocols.
description: 7 pages, 4 figures. Accepted by Physical Review A
A Cantor set of tori with monodromy near a focus-focus singularity
Creators: name: Rink, B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We write down an asymptotic expression for action coordinates in an integrable Hamiltonian system with a focus-focus equilibrium. From the singularity in the actions we deduce that the Arnol'd determinant grows infinitely large near the pinched torus. Moreover, we prove that it is possible to globally parametrise the Liouville tori by their frequencies. If one perturbs this integrable system, then the KAM tori form a Whitney smooth family: they can be smoothly interpolated by a torus bundle that is diffeomorphic to the bundle of Liouville tori of the unperturbed integrable system. As is well-known, this bundle of Liouville tori is not trivial. Our result implies that the KAM tori have monodromy. In semi-classical quantum mechanics, quantisation rules select sequences of KAM tori that correspond to quantum levels. Hence a global labeling of quantum levels by two quantum numbers is not possible.
description: 11 pages, 2 figures
Properties and Curie Temperature (130 K) of Heavily Mn-doped Quaternary Alloy Ferromagnetic Semiconductor (InGaMn)As Grown on InP
Creators: name: Ohya, Shinobu
name: Kobayashi, Hideo
name: Tanaka, Masaaki
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have studied magnetic properties of heavily Mn-doped [(In0.44Ga0.56)0.79Mn0.21]As thin films grown by low-temperature molecular-beam epitaxy (LT-MBE) on InP substrates. The (InGaMn)As with high Mn content (21%) was obtained by decreasing the growth temperature to 190 degC. When the thickness of the [(In0.44Ga0.56)0.79Mn0.21]As layer is equal or thinner than 10 nm, the reflection high-energy electron diffraction (RHEED) pattern and transmission electron microscopy (TEM) show no MnAs clustering, indicating that a homogeneous single crystal with good quality was grown. In the magnetic circular dicroism (MCD) measurement, large MCD intensity and high Curie temperature of 130 K were observed.
description: 3 pages, 5 figures
Conflict Management and Performance of Academic Staff Union of Universities(ASUU)
Creators: name: E. Nwokike, Glydys Unoma Ndu-Anunobi & Nwosu, Ifeoma Chidimma, Chidi
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 350599
subject: Human resources and industrial relations not elsewhere classified

description: This study examined the unresolved conflicts between the Academic Staff Union ofUniversities (ASUU) and the government, which have led to frequent strikes and disruptionsin the education sector. The research reviewed relevant literature on conflict management,industrial conflict, and employee performance to provide a theoretical framework for thestudy. Empirical studies on conflict management and organizational effectiveness in Nigeriawere also reviewed. The study adopted the conflict theory, which emphasized the role ofpower dynamics and resource distribution in perpetuating conflicts. The study found that theNigerian government's failure to address grievances promptly has led to conflicts and strikesby academic staff. These conflicts have resulted in disruptions to the academic calendar,delayed graduations, and a decline in the quality of education. Employee performance inuniversities is crucial for productivity and organizational success. Factors such as paydissatisfaction, excessive workload, and unfavorable working conditions can negatively affectperformance. The researchers recommended that effective communication, engagement, andregular payment of salaries and benefits are important for motivating academic staff andimproving their performance.
Global Forestry Data for the Economic Modeling of Land Use
Creators: name: Sohngen, Brent
name: Tennity, Colleen
name: Hnytka, Marc
name: Meeusen, Karl
name: Sohngen, Brent
name: Tennity, Colleen
name: Hnytka, Marc
name: Meeusen, Karl
Publisher: name: Unknown
Year: 2008
Subjects: subject: Resource /Energy Economics and Policy
subject: Climate change policy
subject: Calibration and parameter estimation
subject: The GTAP Data Base and extensions

description: Chapter 3 of the forthcoming book "Economic Analysis of Land Use in Global Climate Change Policy," edited by Thomas W. Hertel, Steven Rose, and Richard S.J. Tol
Effects of nuclear symmetry energy and equation of state on neutron star properties
Creators: name: Ji, Fan
name: Hu, Jinniu
name: Bao, Shishao
name: Shen, Hong
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the effects of nuclear symmetry energy on the mass-radius relation and tidal deformability of neutron stars, considering the self-consistency of the equation of state (EOS). We first construct a set of unified EOSs based on relativistic mean-field models with different density dependence of the symmetry energy. For the description of pasta phases appearing in the inner crust of neutron stars, we perform a self-consistent Thomas-Fermi calculation using the same nuclear interaction as that for the uniform matter in the core. To examine possible effects from the self-consistency of the EOS on neutron-star properties, we separately investigate the impacts of crust and core segments. By matching the same core EOS to different crust EOSs, it is found that neutron-star radii are significantly affected by the crust segment. On the other hand, the neutron-star radii are also strongly dependent on the core EOS. However, the correlation between the radius and the symmetry energy slope of the core EOS is opposite to that of the crust EOS. It is likely that the nuclear model with a small slope parameter is favored by recent astrophysical observations.
description: 13 pages, 12 figures
An Integrated Global Land Use Data Base for CGE Analysis of Climate Policy Options
Creators: name: Lee, Huey-Lin
name: Hertel, Thomas W.
name: Rose, Steven
name: Avetisyan, Misak
name: Lee, Huey-Lin
name: Hertel, Thomas W.
name: Rose, Steven
name: Avetisyan, Misak
Publisher: name: Unknown
Year: 2008
Subjects: subject: Land Economics/Use
subject: Climate change policy
subject: Calibration and parameter estimation
subject: The GTAP Data Base and extensions

description: Chapter 4 of the forthcoming book "Economic Analysis of Land Use in Global Climate Change Policy," edited by Thomas W. Hertel, Steven Rose, and Richard S.J. Tol
Oxidative conversion of transthyretin in formalin-fixed clinical amyloid samples results in the formation of the His90Asp and His90Asn variants
Creators: name: Raheja, Simran
name: Verona, Guglielmo
name: Florent, Paolo
name: Rendell, Nigel B.
name: Nocerino, Paola
name: Ellemerich, Stephan
name: Fernandes, Raizel
name: Botcher, Nicola
name: Rowczenio, Dorota
name: Gilbertson, Janet A.
name: Simons, J. Paul
name: Gillmore, Julian D.
name: Bellotti, Vittorio
name: Taylor, Graham W.
name: Canetti, Diana
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Evolutionary Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Proteomics is routinely used to type clinical amyloid deposits, and offers additional benefit of identifying genetic variants, which can be diagnostically useful. Reviewing the proteomics data for ATTR patients attending our Centre revealed an unusually large number of samples containing a rare pathogenic H90D TTR variant alongside the more common H90N variant. These findings raised questions to their source. Proteomics was used to monitor the generation of H90D/H90N variants in fresh, frozen, stored samples during extraction and digestion, and also following Cu2+-mediated oxidation. There was no evidence that the variants were present in the circulation, except in one patient with genetically confirmed H90D TTR, in fresh fat aspirates or tissues from an ATTR amyloid mouse model. The variant could be generated in vitro from both wild-type TTR and ex vivo ATTR fibrils by non-enzymic oxidation of histidine at position 90. These data suggest that the H90D variant can be generated artefactually from wild-type 90H TTR through a radical-mediated oxidation of histidine, followed by its conversion to asparagine and aspartic acid. This probably occurs during storage. In the absence of genetic data, the identification of H90D TTR in stored tissue by proteomics should be treated with caution.
Study of relativistic accretion flow in Kerr-Taub-NUT spacetime
Creators: name: Dihingia, Indu K.
name: Maity, Debaprasad
name: Chakrabarti, Sayan
name: Das, Santabrata
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study the properties of the relativistic, steady, axisymmetric, low angular momentum, inviscid, advective, geometrically thin accretion flow in a Kerr-Taub-NUT (KTN) spacetime which is characterized by the Kerr parameter ($a_{\rm k}$) and NUT parameter ($n$). Depending on $a_{\rm k}$ and $n$ values, KTN spacetime represents either a black or a naked singularity. We solve the governing equations that describe the relativistic accretion flow in KTN spacetime and obtain all possible global transonic accretion solutions around KTN black hole in terms of the energy $({\cal E})$ and angular momentum $(λ)$ of the flow. We identify the region of the parameter space in $λ-{\cal E}$ plane that admits the flow to possess multiple critical points for KTN black hole. We examine the modification of the parameter space due to $a_{\rm k}$ and $n$ and find that the role of $a_{\rm k}$ and $n$ in determining the parameter space is opposite to each other. This clearly indicates that the NUT parameter $n$ effectively mitigates the effect of black hole rotation in deciding the accretion flow structure. Further, we calculate the maximum disc luminosity ($L_{\rm max}$) corresponding to the accretion solutions around the KTN black hole and for a given set of $a_{\rm k}$ and $n$. In addition, we also investigate all possible flow topologies around the naked singularity and find that there exists a region around the naked singularity which remains inaccessible to the flow. We study the critical point properties for naked singularities and find that the flow possesses maximum of four critical points. Finally, we obtain the parameter space for multiple critical points for naked singularity and find that parameter space is shrunk and shifted to lower $λ$ and higher ${\cal E}$ side as $a_{\rm k}$ is increased which ultimately disappears.
description: Accepted for publication in PRD, 15 pages, 14 figures
Quadratic soliton mode-locked degenerate optical parametric oscillator
Creators: name: Nie, Mingming
name: Huang, Shu-Wei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: By identifying the similarities between the coupled-wave equations and the parametrically driven nonlinear Schrödinger equation, we unveil the existence condition of the quadratic soliton mode-locked degenerate optical parametric oscillator in the previously unexplored parameter space of near-zero group velocity mismatch. We study the nature of the quadratic solitons and divide their dynamics into two distinctive branches depending on the system parameters. We find the nonlinear interaction between the resonant pump and signal results in phenomena that resemble the dispersive two-photon absorption and the dispersive Kerr effect. Origin of the quadratic soliton perturbation is identified and strategy to mitigate its detrimental effect is developed. Terahertz comb bandwidth and femtosecond pulse duration are attainable in an example periodically poled lithium niobate waveguide resonator in the short-wave infrared and an example orientation-patterned gallium arsenide free-space cavity in the long-wave infrared. The quadratic soliton mode-locking principle can be extended to other material platforms, making it a competitive ultrashort pulse and broadband comb source architecture at the mid-infrared.
Research proposal : attitudes and beliefs of nurses' towards pushing method in the second stage of labour
Creators: name: Lin, Susan
Publisher: name: The University of British Columbia
Year: 2013

description: The purpose of my proposed research is to explore nurses’ attitudes and beliefs towards pushing in the second stage of labour. Specifically, I will explore nurses’ perceptions of Valsalva and spontaneous pushing in order to understand the rationale, influences and decision-making processes underpinning the support of one pushing method over the other.[The complete version of University of British Columbia nursing student journal for 2013 is available at: http://hdl.handle.net/2429/45164]
Breaking an encryption scheme based on chaotic Baker map
Creators: name: Alvarez, Gonzalo
name: Li, Shujun
Publisher: name: arXiv
Year: 2004
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: In recent years, a growing number of cryptosystems based on chaos have been proposed, many of them fundamentally flawed by a lack of robustness and security. This paper describes the security weaknesses of a recently proposed cryptographic algorithm with chaos at the physical level. It is shown that the security is trivially compromised for practical implementations of the cryptosystem with finite computing precision and for the use of the iteration number n as the secret key. Some possible countermeasures to enhance the security of the chaos-based cryptographic algorithm are also discussed.
description: 12 pages, 2 figures, 1 table, LaTeX format
Non-CO2 Greenhouse Gas Emissions Data for Climate Change Economic Analysis
Creators: name: Rose, Steven K.
name: Lee, Huey-Lin
name: Rose, Steven K.
name: Lee, Huey-Lin
Publisher: name: Unknown
Year: 2008
Subjects: subject: Resource /Energy Economics and Policy
subject: Climate change policy
subject: Calibration and parameter estimation
subject: The GTAP Data Base and extensions

description: Chapter 5 of the forthcoming book "Economic Analysis of Land Use in Global Climate Change Policy," edited by Thomas W. Hertel, Steven Rose, and Richard S.J. Tol
Leptostylus faulkneri Hovore 1988
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Leptostylus
Leptostylus faulkneri

description: 20. Leptostylus faulkneri Hovore, 1988
Type locality — Mexico, Baja California: 5 mi E Rancho Barrera. (CASC). Distribution — Mexico (Baja California).
 Leptostylus faulkneri Hovore, 1988: 21, fig 4b; Chemsak et al., 1992: 140 (cat.); Noguera & Chemsak, 1996: 406 (cat.).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553