cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fast XML/HTML for Haskell: XML TypeLift
Creators: name: Gajda, Michał J.
name: Krylov, Dmitry
Publisher: name: arXiv
Year: 2020
Subjects: subject: Programming Languages (cs.PL)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: The paper presents and compares a range of parsers with and without data mapping for conversion between XML and Haskell. The best performing parser competes favorably with the fastest tools available in other languages and is, thus, suitable for use in large-scale data analysis. The best performing parser also allows software developers of intermediate-level Haskell programming skills to start processing large numbers of XML documents soon after finding the relevant XML Schema from a simple internet search, without the need for specialist prior knowledge or skills. We hope that this unique combination of parser performance and usability will provide a new standard for XML mapping to high-level languages.
Improved POMDP Tree Search Planning with Prioritized Action Branching
Creators: name: Mern, John
name: Yildiz, Anil
name: Bush, Larry
name: Mukerji, Tapan
name: Kochenderfer, Mykel J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: I.2.8

description: Online solvers for partially observable Markov decision processes have difficulty scaling to problems with large action spaces. This paper proposes a method called PA-POMCPOW to sample a subset of the action space that provides varying mixtures of exploitation and exploration for inclusion in a search tree. The proposed method first evaluates the action space according to a score function that is a linear combination of expected reward and expected information gain. The actions with the highest score are then added to the search tree during tree expansion. Experiments show that PA-POMCPOW is able to outperform existing state-of-the-art solvers on problems with large discrete action spaces.
description: 7 pages
title: Integrating stochastic age‐structured population dynamics in complex fisheries economic models for management evaluations: The North Sea saithe fishery as a case study
Creators: name: Laura, Simons Sarah
name: Heleen, Bartelings
name: Gaelle, Hamon Katell
name: Johannes, Kempf Alexander
name: Ralf, Döring
name: Axel, Temming
Publisher: name: ASC 2013 - Theme session H
Year: 2024
Subjects: Fisheries and aquaculture
The sea and human culture and societies

description: No abstracts are to be cited without prior reference to the author. Most bioeconomic models still focus on economics, tending to oversimplify biological aspects (e.g. biologically oversimplified Schaefer logistic model commonly applied in complex economic models). In the present study biological and economic issues were considered both by combining stochastic age‐structured population dynamics with complex fisheries economics in one model.
Ionisation-induced star formation II: External irradiation of a turbulent molecular cloud
Creators: name: Dale, J. E.
name: Clark, P. C.
name: Bonnell], I. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper, we examine numerically the difference between triggered and revealed star formation. We present Smoothed Particle Hydrodynamics (SPH) simulations of the impact on a turbulent 10^4 solar-mass molecular cloud of irradiation by an external source of ionising photons. In particular, using a control model, we investigate the triggering of star formation within the cloud. We find that, although feedback has a dramatic effect on the morphology of our model cloud, its impact on star formation is relatively minor. We show that external irradiation has both positive and negative effects, accelerating the formation of some objects, delaying the formation of others, and inducing the formation of some that would not otherwise have formed. Overall, the calculation in which feedback is included forms nearly twice as many objects over a period of \sim0.5 freefall times (\sim2.4 Myr), resulting in a star--formation efficiency approximately one third higher (\sim4% as opposed to \sim3% at this epoch) as in the control run in which feedback is absent. Unfortunately, there appear to be no observable characteristics which could be used to differentiate objects whose formation was triggered from those which were forming anyway and which were simply revealed by the effects of radiation, although this could be an effect of poor statistics.
description: 12 pages, 9 figures, accepted by MNRAS
title: The growing value of age: Exploring economic gains from age-specific harvesting
Creators: name: Diekert, Florian K.
Publisher: name: ASC 2013 - Theme session H
Year: 2024
Subjects: Fisheries and aquaculture
The sea and human culture and societies

description: No abstracts are to be cited without prior reference to the author. The importance of the fish stock's age-structure is increasingly recognized in economics and ecology. Still, current policies predominately rely on measures of the aggregate biomass. The main contribution of this work is to highlight the economic gains from adequately considering gear selectivity
Degradation of a quantum reference frame
Creators: name: Bartlett, Stephen D.
name: Rudolph, Terry
name: Spekkens, Robert W.
name: Turner, Peter S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the degradation of reference frames, treated as dynamical quantum systems, and quantify their longevity as a resource for performing tasks in quantum information processing. We adopt an operational measure of a reference frame's longevity, namely, the number of measurements that can be made against it with a certain error tolerance. We investigate two distinct types of reference frame: a reference direction, realized by a spin-j system, and a phase reference, realized by an oscillator mode with bounded energy. For both cases, we show that our measure of longevity increases quadratically with the size of the reference system and is therefore non-additive. For instance, the number of measurements that a directional reference frame consisting of N parallel spins can be put to use scales as N^2. Our results quantify the extent to which microscopic or mesoscopic reference frames may be used for repeated, high-precision measurements, without needing to be reset - a question that is important for some implementations of quantum computing. We illustrate our results using the proposed single-spin measurement scheme of magnetic resonance force microscopy.
description: 9 pages plus appendices, 4 figures, published version
Site documentation and as-built records of public sector construction project
Creators: name: Dietrich, Brett Robert
Publisher: name: University of British Columbia
Year: 2009

description: This paper is a continuation of work to develop and test a prototype computerbased system to address the needs of a public owner - The British Columbia Ministry of Transportation and Highways. The Ministry continues to be interested in how they can exploit information technologies and the prototype system discussed here proceeds to address their concerns. After the research completed by Ralph English in the Spring of 1995 was concluded several outstanding issues remained. These included reporting features for certain routines, development of a quality management routine, a site trial, and modifications to current practices, such as improved record associations with pay items and activities. This prototype was built on top of a project management system called REPCON which has been developed over many years at the University of British Columbia. Implicit in this project is the ability to represent any project with multiple views. Depending on the required view, the system must be able to respond to the user to provide the appropriate data for a complete picture of the project. The objectives for this thesis include: modifications to the Pay Item and Activity routines; thorough report generation in the Daily Site routine; select-sort and reporting in the Records routine; a description of future work required to generate a Quality Management view of a project; and, an outline concerning a Change Order Management routine.
title: Fisheries Policy and the Common Pool Problem in a Council
Creators: name: Hoffmann, Julia
name: Quaas, Martin F.
Publisher: name: ASC 2013 - Theme session H
Year: 2024
Subjects: Fisheries and aquaculture
The sea and human culture and societies

description: No abstracts are to be cited without prior reference to the author. Fisheries management often fails because of too high total allowable catches (TACs). To study why decision-makers choose such high TACs, we develop a model which describes the annual voting on TACs in a council as a dynamic game with feedback strategies in discrete time
title: Σχεδιασμός, κατασκευή και μετρήσεις ενός μη γραμμικού συλλέκτη κραδασμικής ενέργειας
title: Design, manufacturing and testing of a non-linear vibration energy harvester
Creators: name: Γομπακης Σωτηριος
Publisher: name: Technical University of Crete
Year: 2024

description: Στη παρούσα διπλωματική εργασία αρχικά γίνεται σχεδιασμός των απαραίτητων εξαρτημάτων ενός μη γραμμικού συλλέκτη κραδασμικής ενέργειας, με χρήση λογισμικού CAD. Στη συνέχεια γινεται η κατασκευή του συλλέκτη και εξετάζεται δεχώμενος ταλαντώσεις, ως προς την απόδοση του με βάση τη παραγώμενη ηλεκτρική ισχύ.
description: At the present thesis, at first, all the necessary components of a non-linear vibration energy harvester are designed with the use of CAD software. Then, the harvester gets assembled and tested for the efficiency of electrical power it produces, while receiving vibrations.
Complex noise in diffusion-limited reactions of replicating and competing species
Creators: name: Hochberg, David
name: Zorzano, M. -P.
name: Moran, Federico
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Other Condensed Matter (cond-mat.other)
subject: Other Quantitative Biology (q-bio.OT)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We derive exact Langevin-type equations governing quasispecies dynamics. The inherent multiplicative noise has both real and imaginary parts. The numerical simulation of the underlying complex stochastic partial differential equations is carried out employing the Cholesky decomposition for the noise covariance matrix. This noise produces unavoidable spatio-temporal density fluctuations about the mean field value. In two dimensions, the fluctuations are suppressed only when the diffusion time scale is much smaller than the amplification time scale for the master species.
description: 10 pages, 2 composite figures
title: Signal Detection Theory for guiding fishing opportunities with Harvest Control Rules
Creators: name: Duggan, Deirdre E.
name: Farnsworth, Keith D.
name: B.M.Kraak, Sarah
name: G.Reid, Dave
Publisher: name: ASC 2013 - Theme session H
Year: 2024
Subjects: Fisheries and aquaculture
The sea and human culture and societies

description: No abstracts are to be cited without prior reference to the author. Multiple indicators are combined to produce a simple tool for use when setting Harvest Control Rules. Time-series of indicators for the Celtic Sea Ecoregion are assessed under a hypothetical management system using Signal Detection Theory (Skolnik 1970).
Ο Φ.Π.Α. στα ακίνητα:
Creators: name: Μαργαρίτη, Βαϊα-Παναγιώτα
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Ευρωπαϊκή Ένωση
Φόρος Προστιθέμενης Αξίας
Ακίνητα
European Union
Value added tax
Immovable Property

description: Αντικείμενο της διπλωματικής εργασίας ήταν η επέκταση εφαρμογής του ΦΠΑ και στα ακίνητα σε εθνικό επίπεδο σε εφαρμογή της κοινοτικής Οδηγίας. Αρχικά, εξετάστηκε η αναγκαιότητα υιοθέτησης του ΦΠΑ, ως γενικού φόρου επί της δαπάνης, στις συναλλαγές σε ευρωπαϊκό επίπεδο, για την εναρμόνιση της έμμεσης φορολογίας των κρατών μελών και τη δημιουργία μιας ενιαίας εσωτερικής αγοράς. Στη συνέχεια, παρατέθηκαν τα γενικά χαρακτηριστικά γνωρίσματα του ΦΠΑ και τα πλεονεκτήματά του συγκριτικά με άλλους έμμεσους φόρους. Ολοκληρώνοντας, εκτέθηκε αναλυτικά το θεσμικό πλαίσιο του άρθρου 6 του Νόμου 1642/86, ορίστηκε το υποκείμενο και το αντικείμενο του φόρου και παρατέθηκαν νομολογιακά παραδείγματα και προβληματισμοί αναφορικά με την επίτευξη των στόχων του νομοθέτη.
description: The subject of the present thesis was to extend the application of VAT on immovable property at the national level to implement the Community directive. Initially, we examined the necessity of adopting the VAT as a general tax on the expenditure at European trade in order to harmonize indirect taxation in the Member States and create a single internal market. Furthermore, we analyzed the general features of VAT and its advantages compared to other indirect taxes. Finally, we set out in detail the institutional framework of article 6 of law no 1642/86, we defined the subject and the object of the tax and presented examples and considerations with regard to the achievement of the legislator.
title: Catch- quota Balancing Regulations in the Icelandic Multi-species Demersal Fishery: Are they useful for advancing Ecosystem-based Management?
Creators: name: Woods, Pamela J.
name: Holland, Dan S.
name: Punt, André
name: Marteinsdóttir, Guðrún
Publisher: name: ASC 2013 - Theme session H
Year: 2024
Subjects: Fisheries and aquaculture
The sea and human culture and societies

description: No abstracts are to be cited without prior reference to the author. Summary Implementation of single-species catch limits in multi-species fisheries is problematic when individual species quotas become limiting, and can therefore preclude advancement toward the holistic approach of ecosystem-based management.
Secondary Organic Aerosol Formation during the Oxidation of Large Aromatic and Other Cyclic Anthropogenic Volatile Organic Compounds
Creators: name: Pavlidis, Damianos
name: Uruci, Petro
name: Florou, Kalliopi
name: Simonati, Andrea
name: Vasilakopoulou, Christina
name: Argyropoulou, Georgia
name: Pandis, Spyros
Publisher: name: Zenodo
Year: 2024

description: This study explores the secondary organic aerosol (SOA) production from large anthropogenic aromatic and cyclic alkanes oxidized with hydroxyl radicals under high NOx conditions and proposes parameterizations for the Volatility Basis Set (VBS).
Generating mass and topological terms to the antisymmetric tensor matter field by Higgs mechanism
Creators: name: Filho, L. Gonzaga
name: Cunha, M. S.
name: Almeida, C. A. S.
name: Landim, R. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The interaction between the complex antisymmetric tensor matter field and a scalar field is constructed. We analyze the Higgs mechanism and show the generation of mass and topological terms by spontaneous symmetry breaking.
description: Accepted for publication in Phys. Lett. B
Prediction of Stable Ground-State Binary Sodium-Potassium Interalkalis under High Pressures
Creators: name: Chen, Yangmei
name: Yan, Xiaozhen
name: Geng, Huayun
name: Sheng, Xiaowei
name: Zhang, Leilei
name: Wang, Hao
name: Li, Jinglong
name: Cao, Ye
name: Pan, Xiaolong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The complex structures and electronic properties of alkali metals and their alloys provide a natural laboratory for studying the interelectronic interactions of metals under compression. A recent theoretical study (J. Phys. Chem. Lett. 2019, 10, 3006) predicted an interesting pressure-induced decomposition-recombination behavior of the Na2K compound over a pressure range of 10 - 500 GPa. However, a subsequent experiment (Phys. Rev. B 2020, 101, 224108) reported the formation of NaK rather than Na2K at pressures above 5.9 GPa. To address this discordance, we study the chemical stability of different stoichiometries of NaxK (x = 1/4, 1/3, 1/2, 2/3, 3/4, 4/3, 3/2 and 1 - 4) by effective structure searching method combined with first-principles calculations. Na2K is calculated to be unstable at 5 - 35 GPa due to the decomposition reaction Na2K-> NaK + Na, coinciding well with the experiment. NaK undergoes a combination-decomposition-recombination process accompanied by an opposite charge-transfer behavior between Na and K with pressure. Besides NaK, two hitherto unknown compounds NaK3 and Na3K2 are uncovered. NaK3 is a typical metallic alloy, while Na3K2 is an electride with strong interstitial electron localization.
description: 19 pages, 4 figures, with supporting information
First measurements of the index of refraction of gases for lithium atomic waves
Creators: name: Jacquey, Marion
name: Büchner, Matthias
name: Trénec, Gérard
name: Vigué, Jacques
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report here the first measurements of the index of refraction of gases for lithium waves. Using an atom interferometer, we have measured the real and imaginary part of the index of refraction $n$ for argon, krypton and xenon, as a function of the gas density for several velocities of the lithium beam. The linear dependence of $(n-1)$ with the gas density is well verified. The total collision cross-section deduced from the imaginary part is in very good agreement with traditional measurements of this quantity. Finally, as predicted by theory, the real and imaginary parts of $(n-1)$ and their ratio $ρ$ exhibit glory oscillations.
Structure of the simple harmonic-repulsive system in liquid and glassy states studied by the triple correlation function
Creators: name: Levashov, V. A.
name: Ryltsev, R. E.
name: Chtchelkatchev, N. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: An efficient description of the structures of liquids and, in particular, the structural changes that happen with liquids on supercooling remains to be a challenge. The systems composed of soft particles are especially interesting in this context because they often demonstrate non-trivial local orders that do not allow to introduce the concept of the nearest-neighbor shell. For this reason, the use of some methods, developed for the structure analysis of atomic liquids, is questionable for the soft-particle systems. Here we report about our investigations of the structure of the simple harmonic-repulsive liquid in 3D using the triple correlation function (TCF), i.e., the method that does not rely on the nearest neighbor concept. The liquid is considered at reduced pressure ($P=1.8$) at which it exhibits remarkable stability against crystallization on cooling. It is demonstrated that the TCF allows addressing the development of the orientational correlations in the structures that do not allow drawing definite conclusions from the studies of the bond-orientational order parameters. Our results demonstrate that the orientational correlations, if measured by the heights of the peaks in the TCF, significantly increase on cooling. This rise in the orientational ordering is not captured properly by the Kirkwood's superposition approximation. Detailed considerations of the peaks' shapes in the TCF suggest the existence of a link between the orientational ordering and the slowdown of the system's dynamics. Our findings support the view that the development of the orientational correlations in liquids may play a significant role in the liquids' dynamics and that the considerations of the pair distribution function may not be sufficient to understand intuitively all the structural changes that happen with liquids on supercooling.
description: 14 pages, 9 Figures, This is the version of the article before peer review or editing, as submitted by an author to Journal of Physics: Condensed Matter (2020)
Suppression of Spin Relaxation in Submicron InGaAs Wires
Creators: name: Holleitner, A. W.
name: Sih, V.
name: Myers, R. C.
name: Gossard, A. C.
name: Awschalom, D. D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate electron spin dynamics in narrow two-dimensional n-InGaAs channels as a function of the channel width. The spin relaxation times increase with decreasing channel width, in accordance with recent theoretical predictions based on the dimensionally-constrained D'yakonov-Perel' mechanism. Surprisingly, the suppression of the relaxation rate, which is anticipated for the one-dimensional limit, is observed for widths that are an order of magnitude larger than the electron mean free path. We find the spin precession length and the channel width to be the relevant length scales for interpreting these results.
description: 5 pages, 4 figures
Asymptotic Symmetry and Classical holographic dual of $dS_3$ supergravity
Creators: name: Bhattacharjee, Arindam
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider minimal supergravity on (2+1)dimensional de-Sitter background. We fix the fall-off conditions for gravitini fields in order to fix the asymptotic phase space. Using the Chern-Simons formulation, we then derive the asymptotic symmetry algebra for this theory. The fall-off conditions impose constraints on the phase space which reduces the Chern Simons theory to a WZW model. Further constraints reduce it to a super-Liouville theory at the boundary. This can be treated as a classical dual for the supergravity theory in the bulk.
description: 15 pages, 1 figure
An integrable hierarchy with a perturbed Henon-Heiles system
Creators: name: Hone, A. N. W.
name: Novikov, V. S
name: Verhoeven, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We consider an integrable scalar partial differential equation (PDE) that is second order in time. By rewriting it as a system and applying the Wahlquist-Estabrook prolongation algebra method, we obtain the zero curvature representation of the equation, which leads to a Lax representation in terms of an energy-dependent Schrödinger spectral problem of the type studied by Antonowicz and Fordy. The solutions of this PDE system, and of its associated hierarchy of commuting flows, display weak Painlevé behaviour, i.e. they have algebraic branching. By considering the travelling wave solutions of the next flow in the hierarchy, we find an integrable perturbation of the case (ii) Henon-Heiles system which has the weak Painlevé property. We perform separation of variables for this generalized Henon-Heiles system, and describe the corresponding solutions of the PDE.
description: Further comments and references added
Reliability-based design for highway horizontal curves
Creators: name: Felipe, Emmanuel Leon
Publisher: name: University of British Columbia
Year: 2009

description: For more than fifty years the notion of comfortable lateral acceleration has governed the horizontal curve design procedure in North America. With new road and vehicle technology, new methods of design have to replace the old procedures to provide consistent and safer roads to the users. The "limit state design" concept, taken from structural engineering, has already shown to provide a meaningful value of safety to highway design, see Navin (1990-1992). With the cooperation of the British Columbia Ministry of Transportation and Highways, controlled experiment and field observation were performed to develop the "limit state design" concept for highway horizontal curves. These measurements allowed to accumulate actual statistical information of the basic variables involved in the driving process of horizontal curves. During the experiment, designed with a Latin Square, eight regular drivers and two expert drivers drove four different curves at two speed levels and two pavement conditions. The response variables from this experiment were the lateral acceleration, the speed and the level of comfort. During the observation, in addition to the geometric characteristics of the four horizontal curves selected on the "Sea to Sky" Highway, the speed, lateral acceleration and lateral placement of the free moving passenger cars traveling through these curves were gathered. The computer program RELAN was used to perform First Order Reliability Method (FORM) analysis for passenger cars subjected to skidding by comparing the expected lateral acceleration supplied by the road to the expected lateral acceleration demanded by the vehicle-driver. RELAN was also used to compute the reliability index P and to provide the probability of noncompliance for existing highway horizontal curves, by comparing the expected radius supplied by the highway to the expected radius demanded by the car/driver system. From data collected during the empirical studies^ results show an increased probability of non-compliance with a decrease of radius. Using reliability-based design method, transportation engineers can adjust the design of horizontal curves to fulfill a desirable probability of non-compliance or a desirable reliability index (3. Designers have also a representation of the main variables involved in the process of driving in a horizontal curve and, therefore, have a better control of their designs. With reliability analysis, transportation engineering is provided with a highway design method which better responds to the actual driving demand on the road, and is supported with a measure of 'safety' or non-compliance.
Quantum Random Number Generation with Uncharacterized Laser and Sunlight
Creators: name: Li, Yu-Huai
name: Han, Xuan
name: Cao, Yuan
name: Yuan, Xiao
name: Li, Zheng-Ping
name: Guan, Jian-Yu
name: Yin, Juan
name: Zhang, Qiang
name: Ma, Xiongfeng
name: Peng, Cheng-Zhi
name: Pan, Jian-Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The entropy or randomness source is an essential ingredient in random number generation. Quantum random number generators generally require well modeled and calibrated light sources, such as a laser, to generate randomness. With uncharacterized light sources, such as sunlight or an uncharacterized laser, genuine randomness is practically hard to be quantified or extracted owing to its unknown or complicated structure. By exploiting a recently proposed source-independent randomness generation protocol, we theoretically modify it by considering practical issues and experimentally realize the modified scheme with an uncharacterized laser and a sunlight source. The extracted randomness is guaranteed to be secure independent of its source and the randomness generation speed reaches 1 Mbps, three orders of magnitude higher than the original realization. Our result signifies the power of quantum technology in randomness generation and paves the way to high-speed semi-self-testing quantum random number generators with practical light sources.
description: 24 pages, 5 figures
Ανάλυση και αξιολόγηση του τοπίου αρχαίων ελαιώνων στη Μεσόγειο. Προστασία, διατήρηση και ανάδειξή τους ως προστατευόμενες περιοχές
Creators: name: Τσαρούχα, Ειρήνη Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: αιωνόβιοι ελαιώνες
πολιτισμικό τοπίο
προστατευόμενες περιοχές
century olive groves
cultural landscape
protected areas

description: Η παρουσία αιωνόβιων ελαιώνων στο Μεσογειακό τοπίο στις ημέρες μας είναι αδιαμφισβήτητη και αποδεικνύεται μέσα από την μακρόχρονη παρουσία της ελιάς στο πέρασμα των αιώνων. Γύρω από το ιερό αυτό δέντρο διαμορφώθηκε ένας ολόκληρος πολιτισμός, άρρηκτα συνδεδεμένος με τη ζωή των ανθρώπων της Μεσογείου. Εκτός όμως από τα ευρήματα της αρχαιολογίας, τους μύθους, της παραδόσεις και την ίδια την ιστορία, φορείς του πολιτισμού της ελιάς αποτελούν τα αιωνόβια δέντρα. Οι αιωνόβιοι ελαιώνες αποτελούν στοιχείο της πολιτισμικής μας κληρονομιάς και συνθέτουν ένα πολιτισμικό τοπίο. Αναβαθμίδες, ξερολιθιές, μουσεία ελιάς, οικισμοί ολόκληροι αποτελούν στοιχεία που ενισχύουν την ύπαρξη τους. Αξιόλογη θεωρείται επίσης η επιβλητική παρουσία τους στο τοπίο μέσω της αισθητικής τους αξίας και η μεγάλη οικολογική τους αξία καθώς αποτελούν οικοτόπους με μεγάλη βιοποικιλότητα. Τους έχει αποδοθεί όμως η ανάλογη αξία; Προστατεύονται; Μέσα από την επιστήμη της Αρχιτεκτονικής τοπίου γίνεται η ανάλυση και αξιολόγηση τοπίων αιωνόβιων ελαιώνων και παρατίθενται τρόποι ανάδειξης, αξιοποίησης και σωστής διαχείρισης αυτών των πολιτισμικών τοπίων. Ένα από τα πολλά παραδείγματα αιωνόβιων ελαιώνων αποτελεί ο ελαιώνας τον Παλαιών Ρουμάτων των Χανίων της Κρήτης ο οποίος αναλύεται, αξιολογείται και κατόπιν προτείνονται μέτρα διαχείρισης.
description: The presence of ancient olive groves in the Mediterranean landscape is indisputable, and proved through the centennial existence of olive trees. An entire civilization was developed around the holy olive tree, inextricably linked to people's lives in the Mediterranean region. Apart from the archeological findings, the legends, the traditions and the history, ancient olive trees are cultural representatives.The century olive groves are part of our cultural heritage and form a cultural landscape. Terraces, rubble walls, olive museums, whole villages are elements that enhance their existence. It is also remarkable, their imposing presence on the landscape through their aesthetic and high ecological value because they are habitats with high biodiversity. Is their high cultural value recognised? Are they protected? Through landscape architecture science, the ancient olive groves are analysed and their landscape is evaluated. A set of methods is proposed for the emergence, utilization and proper management of these cultural landscapes. The century olive grove of Palaia Roumata at Chania is studied, evaluated and management guidelines are proposed.
title: The Consequences of Balanced Harvesting of Fish Communities
Creators: name: Jacobsen, Nis Sand
name: Gislason, Henrik
name: Andersen, Ken Haste
Publisher: name: ASC 2013 - Theme session H
Year: 2024
Subjects: Fisheries and aquaculture
The sea and human culture and societies

description: No abstracts are to be cited without prior reference to the author. Balanced harvesting, where species or individuals are exploited in accordance to their productivity, has been proposed as a way to minimize the effects of fishing on marine fish communities and ecosystems. We use a size- and trait-based model where species interact through competition and predation to compare balanced harvesting with selective harvesting, where juvenile fish are protected from fishing
title: Introduction of a CPUE‐based harvest control rule in the brown shrimp fishery. Applicability and sensitivity testing.
Creators: name: Schulte, Katharina Friederike
name: Temming, Axel
name: Hufnagl, Marc
Publisher: name: ASC 2013 - Theme session H
Year: 2024
Subjects: Fisheries and aquaculture
The sea and human culture and societies

description: No abstracts are to be cited without prior reference to the author. North Sea Brown shrimp (Crangon crangon L.) are, despite its ecologic and economic importance, so far not managed. For the MSC certification the fishery has suggested a Harvest Control Rule (HCR) implying an effort reduction to 72 h fishing if landings per unit effort (LPUE) monitored by a reference fleet (
Evolutionary Models for the Remnant of the Merger of Two Carbon-Oxygen Core White Dwarfs
Creators: name: Schwab, Josiah
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We construct evolutionary models of the remnant of the merger of two carbon-oxygen (CO) core white dwarfs (WDs). With total masses in the range $1-2 {\rm M_\odot}$, these remnants may either leave behind a single massive WD or undergo a merger-induced collapse to a neutron star (NS). On the way to their final fate, these objects generally experience a $\sim 10$ kyr luminous giant phase, which may be extended if sufficient helium remains to set up a stable shell-burning configuration. The uncertain, but likely significant, mass loss rate during this phase influences the final remnant mass and fate (WD or NS). We find that the initial CO core composition of the WD is converted to oxygen-neon (ONe) in remnants with final masses $\gtrsim 1.05 {\rm M_\odot}$. This implies that the CO core / ONe core transition in single WDs formed via mergers occurs at a similar mass as in WDs descended from single stars, and thus that WD-WD mergers do not naturally provide a route to producing ultra-massive CO-core WDs. As the remnant contracts towards a compact configuration, it experiences a "bottleneck" that sets the characteristic total angular momentum that can be retained. This limit predicts single WDs formed from WD-WD mergers have rotational periods of $\approx 10-20$ min on the WD cooling track. Similarly, it predicts remnants that collapse can form NSs with rotational periods $\sim 10$ ms.
description: 18 pages, 16 figures; Accepted to ApJ
Ο χώρος της κεντρικής πλατείας – Η καρδιά της πόλης. Αρχιτεκτονική πολιτιστική κληρονομία, τοποίο και η αλληλεπίδραση τους. Η Περίπτωση της:
Creators: name: Momirov, Marko MIlos
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Πλατεία
Αστικό τοπίο
Πολεοδομία
City square
Urban landscape
Urbanism

description: Σκοπός της διατριβής ήταν η μελέτη του φαινομένου του χώρου της κεντρικής πλατείας της πόλης. Εξετάσαμε την σημασία και το ρόλο αυτού του μοναδικού υπαίθριου χωρου, ακολουθώντας την ανάπτυξη του από την έναρξη μέχρι τις μέρες μας. Συζητάμε σχετικά με τις χρήσεις και τους χρήστες της πλατείας, σχετικά με την αλληλεπίδραση μεταξη της πλατείας με αστικό και φυσικό παριβάλλον, επίσης και η επιρροή της πλατείας στην πολεοδομική εξέλιξη της πόλης και οι περιπτώσεις ολοκλήρωσης ενού τέτοιου χώρου στις σημερινές περιστάσεις. Επιλέξαμε την περίπτωση της κενρικής πλατείας της πόλης Sremski Karlovci στην Σερβία. Αναλύσαμε αυτό το χώρο με σκοπό να καταλάβουμε το ρόλο του στην πόλη, τα πλεονεκτήματα και τα μειονεκτήματα του, και να επεξεργαστούμε και να προτίνουμε τις πιθανές λύσεις.
description: The aim of the thesis was to present the phenomenon of central city squares. By searching for the meaning and the role of these unique urban open spaces, we followed their development from the very begin till today. This study explores different purposes and users of the city squares, and the interactions between the squares and their urban and natural landscape surroundings, as well as their influence on the expansion of the cities, and projects for adjustment of these squares to the current circumstances. We chose the central city square of the small Serbian town Sremski Karlovci as a case study. We thoroughly analyzed this space in order to understand its role in the city, its advantages and disadvantages, and we proposed and elaborated possible solutions.
title: Achieving greater robustness to uncertainties by means of simple management measures.
Creators: name: Gasche, Loïc
name: Mahévas, Stéphanie
name: Marchal, Paul
Publisher: name: ASC 2013 - Theme session H
Year: 2024
Subjects: Fisheries and aquaculture
The sea and human culture and societies

description: No abstracts are to be cited without prior reference to the author. Uncertainties and natural variability are a source of risks that threaten the sustainability of both fish populations and fishing fleets targeting them. Appropriate management measures have to be found in order to reduce these risks and decrease sensitivity to uncertainties.
Observation of Exclusive Electron-Positron Production in Hadron-Hadron Collisions
Creators: name: CDF Collaboration
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present the first observation of exclusive $e^+e^-$ production in hadron-hadron collisions, using $p\bar{p}$ collision data at \mbox{$\sqrt{s}=1.96$ TeV} taken by the Run II Collider Detector at Fermilab, and corresponding to an integrated luminosity of \mbox{532 pb$^{-1}$}. We require the absence of any particle signatures in the detector except for an electron and a positron candidate, each with transverse energy {$E_T>5$ GeV} and pseudorapidity {$|η|<2$}. With these criteria, 16 events are observed compared to a background expectation of {$1.9\pm0.3$} events. These events are consistent in cross section and properties with the QED process \mbox{$p\bar{p} \to p + e^+e^- + \bar{p}$} through two-photon exchange. The measured cross section is \mbox{$1.6^{+0.5}_{-0.3}\mathrm{(stat)}\pm0.3\mathrm{(syst)}$ pb}. This agrees with the theoretical prediction of {$1.71 \pm 0.01$ pb}.
description: 7 pages, 2 figures, version 2 is shortenend for PRL with added references
title: Sustainability objectives of the future CFP: regional objectives in a German case study
Creators: name: Goti, Leyre
name: Fitzpatrick, Mike
name: Döring, Ralf
name: Reid, Dave
Publisher: name: ASC 2013 - Theme session H
Year: 2024
Subjects: Fisheries and aquaculture
The sea and human culture and societies

description: No abstracts are to be cited without prior reference to the author. To study whether the high level (Europe wide) point of view on fisheries policy objectives can be useful to shed light not only on the objectives discussion but also the problem of micro-management a further step is taken by performing consultations with several actors around the German fisheries.
Portal de Periódicos Eletrônicos da UFRN: análise das práticas de Acesso Aberto e de Ciência Aberta a partir do Diretório Miguilim
Creators: name: Queiroz Maia, Maria Aniolly
name: de Araújo Guedes Marques, Clediane
name: Lima, Mônica
name: de Cássia Pereira de Araújo -, Rita
name: de Freitas Campos, Fhillipe
Publisher: name: Zenodo
Year: 2024

description: Apresentação realizada na sessão de Comunicações I, da 15ª Conferência Lusófona de Ciência Aberta, na Escola Superior de Enfermagem do Porto (ESEP), de 01 a 04 de outubro de 2024.
The Manhattan and Lorentz Mirror Models -- A result on the Cylinder with low density of mirrors
Creators: name: Ryan, Kieran
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60K35, 82B41

description: We study the Manhattan and Lorentz Mirror models on an infinite cylinder of finite even width $n$, with the mirror probability $p$ satisfying $p
description: 13 pages, 7 figures
Optical and spectral properties of quantum domain-walls in the generalized Wigner lattice
Creators: name: Fratini, S.
name: Rastelli, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the spectral properties of a system of electrons interacting through long-range Coulomb potential on a one-dimensional chain. When the interactions dominate over the electronic bandwidth, the charges arrange in an ordered configuration that minimizes the electrostatic energy, forming Hubbard's generalized Wigner lattice. In such strong coupling limit, the low energy excitations are quantum domain-walls that behave as fractionalized charges, and can be bound in excitonic pairs. Neglecting higher order excitations, the system properties are well described by an effective Hamiltonian in the subspace with one pair of domain-walls, which can be solved exactly. The optical conducitivity $σ(ω)$ and the spectral function $A(k,ω)$ can be calculated analytically, and reveal unique features of the unscreened Coulomb interactions that can be directly observed in experiments.
Διαχείριση της κυκλοφορίας με τη χρήση λογισμικού προσομοίωσης
Creators: name: Κουκουτίμπας, Ελευθέριος Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Προσομοίωση
Μοντέλα
Μικροσκοπικά
Simulation
Models
Microscopic

description: Στο Σχεδιασμό των Μεταφορών χρησιμοποιείται συχνά ο όρος «μοντέλο». Ένα μοντέλο αποτελεί μια απλοποιημένη περιγραφή ενός επιλεγμένου μέρους του πραγματικού κόσμου, η οποία επικεντρώνεται σε ορισμένα στοιχεία που θεωρούνται σημαντικά για την ανάλυσή του. Τα μοντέλα προσομοίωσης αποτελούν, απλώς, ένα είδος μοντέλων του Σχεδιασμού των Μεταφορών. Τα μικροσκοπικά μοντέλα προσομοίωσης της κυκλοφορίας, αποτελούν μια κατηγορία μοντέλων προσομοίωσης της κυκλοφορίας, που αναπαριστούν την κίνηση και τη συμπεριφορά μεμονωμένων οδηγών. Στην παρούσα διπλωματική εργασία μελετώνται, εκτενώς, δύο μικροσκοπικά μοντέλα προσομοίωσης της κυκλοφορίας, το Corsim και το Vissim. Τα δύο μοντέλα εφαρμόστηκαν σε ένα δίκτυο με ασυνήθιστα γεωμετρικά χαρακτηριστικά, για τα ευρωπαϊκά και αμερικανικά δεδομένα, που αποτελεί τμήμα της υπό σχεδιασμού πόλης DHA City του Πακιστάν. Στα δύο μοντέλα εισήχθησαν τα ίδια δεδομένα και έγιναν οι ίδιες παραδοχές, σύμφωνα με τα ιδιαίτερα λειτουργικά χαρακτηριστικά του καθενός. Από τη μακροσκοπική σύγκριση των δύο μοντέλων, προκύπτει το συμπέρασμα, πως ανεξαρτήτως των λειτουργικών διαφορών των δύο μοντέλων, οι ομοιότητες των δύο μοντέλων είναι περισσότερες από τις διαφορές τους
description: The term “model” is often used in the Transport Planning process. A model is a simplified representation of a selected part of the real world, which focuses on certain elements considered important for its analysis. Simulation models are just a class of Transport Planning models. Microscopic simulation models are a special class of simulation models, which represent the movement and behavior of individual drivers. At the present thesis, two microscopic simulation models are examined extensively· Corsim and Vissim. The two models were applied to a network with unusual geometric features, for European and U.S. standards, which is the center part of the under construction city of Pakistan, called DHA City. Exactly the same data were entered into the models and the same assumptions were made, according to the unique attributes of each model. Making a macroscopic comparison of the two models, it is clearly showed that, although there are functional differences between the models, the two models have much more similarities than differences.
title: Conflicting objectives for optimal ecosystem management of fisheries
Creators: name: Andersen, Ken Haste
name: Ravn-Jonsen, Lars
name: Brander, Keith
Publisher: name: ASC 2013 - Theme session H
Year: 2024
Subjects: Fisheries and aquaculture
The sea and human culture and societies

description: No abstracts are to be cited without prior reference to the author. Recent strategic management objectives for fisheries require that fishing extract the maximum sustainable yield, while at the same time respecting the Ecosystem Approach to Fisheries Management.
Supernova remnants, planetary nebulae and superbubbles: prospects for new XMM-Newton observations
Creators: name: Decourchelle, Anne
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Important results achieved over the last years on supernova remnants, planetary nebulae and superbubbles are briefly reviewed in the context of X-ray observations. I intend to review the important open scientific questions in these fields, and the specific contributions that can be made by XMM-Newton.
description: 4 pages, 1 figure, invited review for "XMM-Newton: The next decade", AN in press
DARS JARAYONIINI TASHKIL ETISHGA QO'YILADIGAN METODIK VA DIDAKTIK  TALABLAR
Creators: name: Rayimova, Nigina
Publisher: name: Zenodo
Year: 2024

description: Mazkur maqolada nazairy va amaliy dars jarayonlarini tashkil etishga qo‘yiladigan talablar, dars jarayonida mazvuning maqsadi, mazmuni, o‘quv usullari samaradorligi va ularni tanlash, zamonaviy o‘quv mashg‘ulotiga qo‘yiladigan talablar, ta’lim metodlarini tanlashga qo‘yiladigan talablar kabi masalalarda fikr yuritilgan.
The Herschel Orion Protostar Survey: Far-Infrared Photometry and Colors of Protostars and Their Variations across Orion A and B
Creators: name: Fischer, William J.
name: Megeath, S. Thomas
name: Furlan, E.
name: Stutz, Amelia M.
name: Stanke, Thomas
name: Tobin, John J.
name: Osorio, Mayra
name: Manoj, P.
name: Di Francesco, James
name: Allen, Lori E.
name: Watson, Dan M.
name: Wilson, T. L.
name: Henning, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The degree to which the properties of protostars are affected by environment remains an open question. To investigate this, we look at the Orion A and B molecular clouds, home to most of the protostars within 500 pc. At ~400 pc, Orion is close enough to distinguish individual protostars across a range of environments in terms of both the stellar and gas projected densities. As part of the Herschel Orion Protostar Survey (HOPS), we used the Photodetector Array Camera and Spectrometer (PACS) to map 108 partially overlapping square fields with edge lengths of 5 arcmin or 8 arcmin and measure the 70 micron and 160 micron flux densities of 338 protostars within them. In this paper we examine how these flux densities and their ratio depend on evolutionary state and environment within the Orion complex. We show that Class 0 protostars occupy a region of the 70 micron flux density versus 160 micron to 70 micron flux density ratio diagram that is distinct from their more evolved counterparts. We then present evidence that the Integral-Shaped Filament (ISF) and Orion B contain protostars with more massive envelopes than those in the more sparsely populated LDN 1641 region. This can be interpreted as evidence for increasing star formation rates in the ISF and Orion B or as a tendency for more massive envelopes to be inherited from denser birth environments. We also provide technical details about the map-making and photometric procedures used in the HOPS program.
description: Accepted by ApJ
Topology Change From Quantum Instability of Gauge Theory on Fuzzy CP^2
Creators: name: Dou, Djamel
name: Ydri, Badis
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Many gauge theory models on fuzzy complex projective spaces will contain a strong instability in the quantum field theory leading to topology change. This can be thought of as due to the interaction between spacetime via its noncommutativity and the fields (matrices) and it is related to the perturbative UV-IR mixing. We work out in detail the example of fuzzy CP^2 and discuss at the level of the phase diagram the quantum transitions between the 3 spaces (spacetimes) CP^2, S^2 and the 0-dimensional space consisting of a single point {0}.
description: 26 pages, one graph