cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Παράγοντες που επηρεάζουν την έκπτυξη ανθοφόρων βλαστών στην Τριανταφυλλιά στο σύστημα καλλιέργειας των λυγισμένων βλαστών:
Creators: name: Τσανάκας, Γεώργιος Φιλίππου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Τριανταφυλλιά
Σύστημα καλλιέργειας
Ανθικά στελέχη
Λυγισμένοι βλαστοί
Φύλλο
Κλάδευμα
Roses
Growing system
Flowers
Arching system
High rack system
Leaf
Pruning

description: Στην παρούσα μεταπτυχιακή διατριβή μελετήθηκε με την διεξαγωγή τριών ομάδων πειραμάτων α) η επίδραση του επάκριου ανθοφόρου οφθαλμού στο σύστημα καλλιέργειας των καμπτόμενων βλαστών β) η επίδραση του σπασίματος του φύλλου στην έκπτυξη του οφθαλμού της μασχάλης και γ) η επίδραση του ύψους τομής κλαδέματος, σε μια σειρά από εμπορικά και φυσιολογικά χαρακτηριστικά δύο ποικιλιών δρεπτών ανθικών στελεχών: της ‘Red Berlin’ και της ‘Red Horizon’. Από την πρώτη ομάδα πειραμάτων προέκυψε ότι η παρουσία του επάκριου ανθοφόρου οφθαλμού στο λυγισμένο βλαστό προκαλεί πρωίμιση της παραγωγής, σχηματισμό βραχύτερων ανθικών στελεχών, και μία τάση για υψηλότερη περιεκτικότητα σε λιγνίνη στη βάση και το λαιμό των ανθικών στελεχών, ενώ όσον αφορά το φθορισμό της χλωροφύλλης φαίνεται να υπάρχει αλληλεπίδραση της μεταχείρισης με την ποικιλία και να προκύπτουν ανάλογα αποτελέσματα. Από τη δεύτερη ομάδα πειραμάτων βρέθηκε πως το σπάσιμο του φύλλου προκαλεί σημαντική πρωίμιση της παραγωγής. Με την τρίτη ομάδα πειραμάτων βρέθηκε ότι όσο χαμηλότερα είναι η τομή κλαδέματος τόσο οψιμότερη είναι η παραγωγή των βλαστών και μεγαλύτερο το μήκος των ανθικών στελεχών. Βρέθηκε επίσης ότι υπάρχει μια τάση για μείωση της περιεκτικότητας του λαιμού των ανθικών στελεχών σε λιγνίνη και αύξηση του υδατικού δυναμικού.
description: In this graduate dissertation thesis a series of experiments was conducted in order to evaluate the effect of: a) the terminal flower bud on the sink-source relationship of the plant b) the bending of the petiole of the uppermost leaf and c) the pruning height, on commercial and physiological characteristics of two cultivars of cut roses: ‘Red Berlin’ and ‘Red Horizon’. From the first group of experiments it was shown that the presence of the terminal flower bud can lead to early harvest, shorter rose stems, higher concentration of lignin at the neck and the base of the flower stem, while an interaction between cultivar and treatment concerning the Quantum Yield of Photosystem PII in leaves was found to exist. From the second group of experiments it was shown that bending the petiole of the uppermost leaf an early harvest from the new shoots can be achieved. From the third group of experiments it was shown that the lower the pruning cut the more delayed the harvest time and the longer the flower stems are, while, a trend of low lignin concentration in the neck of the flower stem and an increase in the water potential was revealed.
วิธีการจัดอันดับสำหรับหน่วยผลิตที่มีข้อมูลแบบช่วงโดยใช้การประเมินประสิทธิภาพแบบไขว้แบบหลายวัตถุประสงค์สำหรับหน่วยผลิตที่มีข้อมูลแบบช่วง และ วิธีสัมประสิทธิ์ความใกล้ชิดสัมพัทธ์
Creators: name: นรงค์ วิชาผา
Publisher: name: Faculty of Engineering and Industrial Technology, Kalasin University
Year: 2023
Subjects: การวิเคราะห์แบบล้อมกรอบข้อมูล
การวิเคราะห์แบบล้อมกรอบข้อมูลที่มีข้อมูลแบบช่วง
วิธีการประเมินประสิทธิภาพเชิงสัมพัทธ์แบบหลายวัตถุประสงค์สำหรับข้อมูลแบบช่วง
วิธีสัมประสิทธิ์ความใกล้ชิดสัมพัทธ์

description: วารสารวิศวกรรมและเทคโนโลยีอุตสาหกรรม มหาวิทยาลัยกาฬสินธุ์, 1, 6, 28-37
Interference-induced enhancement of intensity and energy of a multimode quantum optical field by a subwavelength array of coherent light sources
Creators: name: Kukhlevsky, S. V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Recently, we have showed a mechanism that could provide a great transmission enhancement of the light waves passed through subwavelength aperture arrays in thin metal films not by the plasmon-polariton waves, but by the constructive interference of diffracted waves (beams generated by the apertures) at the detector placed in the far-field zone. We now present a quantum reformulation of the model. The Hamiltonian describing the interference-induced enhancement of the intensity and energy of a multimode quantum optical field is derived. Such a field can be produced, for instance, by a subwavelength array of coherent light sources.
description: A revised version of MS
Recoil proton distribution in high energy photoproduction processes
Creators: name: Bartos, E.
name: Kuraev, E. A.
name: Peresunko, Yu. P.
name: Vinokurov, E. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: For high energy linearly polarized photon--proton scattering we have calculated the azimuthal and polar angle distributions in inclusive on recoil proton experimental setup. We have taken into account the production of lepton and pseudoscalar meson charged pairs. The typical values of cross sections are of order of hundreds of picobarn. The size of polarization effects are of order of several percents. The results are generalized for the case of electroproduction processes on the proton at rest and for high energy proton production process on resting proton.
description: LaTeX2e, 4 pages, 3 figures
Quantifying the errors of the particle-source-in-cell Euler-Lagrange method
Creators: name: Evrard, Fabien
name: Denner, Fabian
name: van Wachem, Berend
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The particle-source-in-cell Euler-Lagrange (PSIC-EL) method is widely used to simulate flows laden with particles. Its accuracy, however, is known to deteriorate as the ratio between the particle diameter~($\smash{d_\text{p}}$) and the mesh spacing~($h$) increases, due to the impact of the momentum that is fed back to the flow by the Lagrangian particles. Although the community typically recommends particle diameters to be at least an order of magnitude smaller than the mesh spacing, the errors corresponding to a given $\smash{d_\text{p} / h}$ ratio and/or flow regime have not been systematically studied. In~this paper, we provide an expression to estimate the magnitude of the flow velocity disturbance resulting from the transport of a particle in the PSIC-EL framework, based on the $\smash{d_\text{p} / h}$ ratio and the particle Reynolds number, $\smash{\text{Re}_\text{p}}$. This, in turn, directly relates to the error in the estimation of the undisturbed velocity, and therefore to the error in the prediction of the particle motion. We show that the upper bound of the relative error in the estimation of the undisturbed velocity, for all particle Reynolds numbers, is approximated by $\smash{(6/5)\,d_\text{p} / h}$. Moreover, for all cases where $\smash{d_\text{p} / h \lesssim 1/2}$, the expression we provide accurately estimates the value of the errors across a range of particle Reynolds numbers that are relevant to most gas-solid flow applications ($\smash{\text{Re}_\text{p} < 500}$).
COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses V. The time delay in SDSS J1650+4251
Creators: name: Vuissoz, C.
name: Courbin, F.
name: Sluse, D.
name: Meylan, G.
name: Ibrahimov, M.
name: Asfandiyarov, I.
name: Stoops, E.
name: Eigenbrod, A.
name: Guillou, L. Le
name: van Winckel, H.
name: Magain, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Aims: Our aim is to measure the time delay between the two gravitationally lensed images of the z = 1.547 quasar SDSS J1650+4251, in order to estimate the Hubble constant H_0. Methods: Our measurement is based on R-band light curves with 57 epochs obtained at Maidanak Observatory, in Uzbekistan, from May 2004 to September 2005. The photometry is performed using simultaneous deconvolution of the data, which provides the individual light curves of the otherwise blended quasar images. The time delay is determined from the light curves using two very different numerical techniques, i.e., polynomial fitting and direct cross-correlation. The time delay is converted into H_0 following analytical modeling of the potential well. Results: Our best estimate of the time delay is Dt = 49.5 +/- 1.9 days, i.e., we reach a 3.8% accuracy. The R-band flux ratio between the quasar images, corrected for the time delay and for slow microlensing, is F_A /F_B = 6.2 +/- 5%. Conclusions: The accuracy reached on the time delay allows us to discriminate well between families of lens models. As for most other multiply imaged quasars, only models of the lensing galaxy that have a de Vaucouleurs mass profile plus external shear give a Hubble constant compatible with the current most popular value (H_0 = 72 +/- 8 km s-1 Mpc-1). A more realistic singular isothermal sphere model plus external shear gives H_0 = 51.7 +4.0 -3.0 km s-1 Mpc-1.
description: 8 pages, 12 figures, accepted by A&A
Ανάπτυξη συστήματος γνώσης λογικού προγραμματισμού για την παρακολούθηση του εσωτερικού κανονισμού του ΔΠΜΣ "Πληροφορική και Διοίκηση":
Creators: name: Στεργίου, Χαράλαμπος Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Διαχείρηση γνώσης
Προγραμματισμός
Knowledge managment
Prolog

description: Το αντικείμενο της παρούσας διπλωματικής εργασίας είναι αφενός η μελέτη της Διαχείρισης Γνώσης και αφετέρου η υλοποίηση ενός προγράμματος σε γλώσσα prolog που θα συμπληρώνει το σύστημα της ηλεκτρονικής γραμματείας. Παρόλο που το πρόγραμμα θα είναι πλήρως ανεξάρτητο από το σύστημα της ηλεκτρονικής γραμματείας, θα είναι σε θέση να τροφοδοτηθεί με δεδομένα και να συμβάλλει τα μέγιστα στην διαχείριση του Μεταπτυχιακού.
description: The aim of the present thesis was the study of Knowledge Management and the creation of a computer software in prolog that will serve the managers of the joint postgraduate course “Informatics and Management” of Aristotle University of Thessaloniki. Despite its full independence from the already existing database, this program will be able to provide the managers of the course with data and time-saving solutions regarding everyday student issues.
Entanglement and Quantum Phase Transitions via Adiabatic Quantum Computation
Creators: name: Oh, Sangchul
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: For a finite XY chain and a finite two-dimensional Ising lattice, it is shown that the paramagnetic ground state is adiabatically transformed to the GHZ state in the ferromagnetic phase by slowly turning on the magnetic field. The fidelity between the GHZ state and an adiabatically evolved state shows a feature of the quantum phase transition.
description: Revised
การศึกษาปัจจัยต่อการให้บริการของศูนย์บริการผลิตภัณฑ์สุขภาพเบ็ดเสร็จระดับอำเภอ กรณีศึกษา เขตพื้นที่จังหวัดมหาสารคาม
Creators: name: อาภากร เขจรรักษ์
Publisher: name: Faculty of Engineering and Industrial Technology, Kalasin University
Year: 2023
Subjects: โปรแกรม Expert Choice
กระบวนการวิเคราะห์แบบลำดับขั้น
ศูนย์บริการผลิตภัณฑ์สุขภาพเบ็ดเสร็จ

description: วารสารวิศวกรรมและเทคโนโลยีอุตสาหกรรม มหาวิทยาลัยกาฬสินธุ์, 1, 6, 38-45
Multi-scale modeling of the effects of temperature, radiation flux and sink strength on point-defect and solute redistribution in dilute Fe-based alloys
Creators: name: Huang, Liangzhao
name: Nastar, Maylise
name: Schuler, Thomas
name: Messina, Luca
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work, we investigate the radiation-induced segregation (RIS) resulting from the coupling between the atomic and point defect (PD) fluxes towards the structural defects of the microstructure. This flux coupling depends on the migration mechanisms of PDs and atoms, including thermal diffusion mechanisms and forced atomic relocations (FAR) occurring in displacement cascades. We derive an analytic model of the PD and solute RIS profiles accounting for PD production and mutual recombination, the FAR mechanism, and the overall sink strength of the microstructure controlling the elimination of PDs at structural defects. From this model, we present a parametric investigation of diffusion and RIS properties in dilute Fe-$B$ ($B$ = P, Mn, Cr, Si, Ni, and Cu) binary alloys, in the form of quantitative temperature/radiation flux/sink strength maps. As in previous works, we distinguish three kinetic domains for the diffusion and RIS properties: the recombination domain, the sink domain, and the thermal domain. Both our analytical approach and numerical applications demonstrate that the diffusion and RIS behaviors of PDs and solute atoms largely differ from one kinetic domain to another. Moreover, at high radiation flux, low temperature, and large sink strength, FARs tend to destroy the solute RIS profiles and therefore reduce the overall amount of RIS by forcing the mixing of solute and host atoms, especially close to PD sinks. Finally, we provide quantitative criteria to emulate in-reactor RIS behaviors by ion irradiation.
Relativistic Perihelion Precession of Orbits of Venus and the Earth
Creators: name: Biswas, Abhijit
name: Mani, Krishnan R. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Among all the theories proposed to explain the 'anomalous' perihelion precession of Mercury's orbit announced in 1859 by Le Verrier, the general theory of relativity proposed by Einstein in November 1915, alone could calculate Mercury's 'anomalous' precession with a precision demanded by observational accuracy. Since Mercury's precession was a directly derived result of the full general theory, it was viewed by Einstein as the most critical test of general relativity, amongst the three tests proposed by him. With the advent of the space age, the observational accuracy level has improved further and it became possible to detect this precession for other planetary orbits of the solar system -- viz., Venus and the Earth. This conclusively proved that the phenomenon of 'anomalous' perihelion precession of planetary orbits is really a relativistic effect. Our previous papers presented the mathematical model and the computed value of the relativistic perihelion precession of Mercury's orbit using an alternate relativistic gravitational model, which is a remodeled form of Einstein's relativity theories, and which retained only experimentally proven principles and has been enriched by the benefits of almost a century-long relativity experimentation including the space age experiments. Using this model, we present in this paper the computed values of the relativistic precession of Venus and the Earth, which compare well with the predictions of general relativity and also are in agreement with the observed values within the range of uncertainty.
description: 3 pages
Locally penalized single-index model using B-splines and spherical coordinates
Creators: name: Jhong, Jae-Hwan
name: Kim, Jae-Young
name: Lee, Jae-Deok
name: Koo, Ja-Yong
Publisher: name: Taylor & Francis
Year: 2021
Subjects: Medicine
Neuroscience
Biotechnology
Information Systems not elsewhere classified
Mathematical Sciences not elsewhere classified
Mental Health

description: In this study, we focus on the estimation of the regression function in the single-index model based on B-splines using penalization techniques. We adopt a spherical coordinates reparameterization of an index vector to deal with an identification problem of the single-index model. To provide a spatially adaptive method, two types of penalties are applied to the estimation of the index vector and the regression function. A special penalty called the localized penalty is introduced to handle the sparsity of the index vector using the spherical coordinates, and the total variation penalty is considered to deal with the smoothing function. Using a coordinate descent algorithm with a grid search of the two tuning parameters, the entire solution paths of the index coefficients and the regression functions for tuning parameters can be obtained efficiently. The performance of the proposed estimator is studied through both numerical simulations and real data sets. An R software package pbssim is available.
Non-linear Realisation of the N=2, D=6 Supergravity
Creators: name: Yilmaz, Nejat Tevfik
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We have applied the method of dualisation to construct the coset realisation of the bosonic sector of the N=2, D=6 supergravity which is coupled to a tensor multiplet. The bosonic field equations are regained through the Cartan-Maurer equation which the Cartan form satisfies. The first-order formulation of the theory is also obtained as a twisted self-duality condition within the non-linear coset construction.
description: 11 pages
Vacuum Expectation Value of the Spinor Massive field in the Cosmic String Space-Time
Creators: name: Bezerra, Valdir B.
name: Khusnutdinov, Nail R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We found the contribution to the vacuum expectation value of the energy-momentum tensor of a massive Dirac field due to the conical geometry of the cosmic string space-time. The heat kernel and heat kernel expansion for the squared Dirac operator in this background are also considered and the first three coefficients were found in an explicity form.
description: 9 pages, 1 figure (2 ref added) (enlarged version)
Early LHC measurements to check predictions for central exclusive production
Creators: name: Khoze, V. A.
name: Martin, A. D.
name: Ryskin, M. G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show how the early data runs of the LHC can provide valuable checks of the different components of the formalism used to predict the cross sections of central exclusive processes. The `soft' rapidity gap survival factor can be studied in electroweak processes, such as W+gaps events, where the bare amplitude is well known. The generalized gluon distribution, in the appropriate kinematic region, can be probed by exclusive Upsilon production. The perturbative QCD effects, especially the Sudakov-like factor, can be probed by exclusive two- and three-jet production. We discuss the possible role of enhanced absorptive corrections which would violate the soft-hard factorization implied in the usual formalism, and suggest ways that the LHC may explore their presence.
description: 28 pages, 12 figures; text clarified, new figure added, version to be published in Eur. Phys. J. C
Probing the structure and composition of van der Waals heterostructures using the nonlocality of Dirac plasmons in the terahertz regime
Creators: name: Lavor, I. R.
name: Cavalcante, L. S. R.
name: Chaves, Andrey
name: Peeters, F. M.
name: Van Duppen, B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Dirac plasmons in graphene are very sensitive to the dielectric properties of the environment. We show that this can be used to probe the structure and composition of van der Waals heterostructures (vdWh) put underneath a single graphene layer. In order to do so, we assess vdWh composed of hexagonal boron nitride and different types of transition metal dichalcogenides (TMDs). By performing realistic simulations that account for the contribution of each layer of the vdWh separately and including the importance of the substrate phonons, we show that one can achieve single-layer resolution by investigating the nonlocal nature of the Dirac plasmon-polaritons. The composition of the vdWh stack can be inferred from the plasmon-phonon coupling once it is composed by more than two TMD layers. Furthermore, we show that the bulk character of TMD stacks for plasmonic screening properties in the terahertz regime is reached only beyond 100 layers.
description: 12 pages, 7 figures
Inner and Outer Orbits in 13 Resolved Hierarchical Stellar Systems
Creators: name: Tokovinin, Andrei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Orbits of inner and outer subsystems in 13 triple or higher-order stellar systems are computed or updated using position measurements and, in three cases, radial velocities. The goal is to determine mutual orbital inclinations, period ratios, and masses to complement the statistics of hierarchical systems. Effect of the subsystems on the motion in the outer orbits (wobble) is explicitly modeled to determine inner mass ratios. Stars studied here (HD 5408, 8036, 9770, 15089, 29310, 286955, 29316, 140538, 144362, 154621, 156034, 185655, and 213235) are bright and nearby (from 15\,pc to 150\,pc). Their inner periods range from 1.7 yr to 49 yr, and the outer periods from 83 to 2400 yr. Some long-period outer orbits are poorly constrained. Four astrometric inner orbits and one outer orbit are computed for the first time.
description: Accepted by AJ. 14 pages, 17 figures, 5 tables
Τα πραιτορικά παραγγέλματα:
Creators: name: Παπαβασιλείου, Γεώργιος Κοσμά
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Παραγγέλματα
Πραίτορες
Ρωμαϊκό Δίκαιο
Interdicts
Praetors
Roman law

description: Σκοπός της διατριβής ήταν η μελέτη των πραιτορικών παραγγελμάτων. Στη συνέχεια παρουσιάσαμε αναλυτικά τα χαρακτηριστικά τους και την λειτουργία τους στο κλασικό Ρωμαϊκό δικονομικό δίκαιο. Ακόμα αναφερθήκαμε αναλυτικά στις κατηγορίες των παραγγελμάτων και στην μεταξύ τους σχέση. Ένα άλλο θέμα που θίξαμε ήταν η σχέση μεταξύ των πραιτορικών παραγγελμάτων και των αγωγών. Ασχοληθήκαμε επιπλέον με την ιστορική διάσταση των παραγγελμάτων και διαπιστώσαμε την παρουσία τους από το κλασικό Ρωμαϊκό δίκαιο μέχρι το μετακλασικό Ρωμαϊκό δίκαιο.
description: The aim of the present thesis was the study of praetorian interdicts. Then we presented its features and its operation in the classical procedural Roman law. Furthermore, we analyzed the categories of interdicts and the relationship between them. We also examined the relationship between praetorian interdicts and actions from ius civile. Another aim of this study was to examine the historical dimension of interdicts and we realized its continual presence from classical Roman law until postclassical Roman law.
Ελεύθερης στρέψης μηδενοδύναμες ομάδες και Lie άλγεβρες:
Creators: name: Καρούλη, Μαρία Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Μεταβελιανή
Μηδενοδύναμη
Lie άλγεβρα
Metabelian
Nilpotent
Lie algebra

description: Σε αυτήν τη διπλωματική εργασία, θα μελετήσουμε τις μηδενοδύναμες ομάδες και τις Lie άλγεβρες τους. Συγκεκριμένα, σε μια ελεύθερη, μεταβελιανή, και μηδενοδύναμη ομάδα Gn,c , θα αντιστοιχίσουμε δύο Lie άλγεβρες, τις LQ(Gn,c) και LQ(Gn,c). Θα αποδείξουμε ότι η LQ(Gn,c) είναι ελεύθερη, μεταβελιανή και μηδενοδύναμη, και ότι LQ(Gn,c)~LQ(Gn,c). Επιπλέον, αν Mn,c είναι μια ελεύθερη, μεταβελιανή και μηδενοδύναμη Lie άλγεβρα που παράγεται από το σύνολο Χ, δίνουμε στην Mn,c δομή ομάδας μέσω του τύπου Baker – Campbell – Hausdorff, και θεωρούμε H να είναι η υποομάδα της που παράγεται από το Χ. Θα αποδείξουμε τότε ότι η Η είναι ισόμορφη με την Gn,c και Mn,c~LQ(Η)~ LQ(Η). Το αποτέλεσμα αυτό είναι ειδική περίπτωση του Θεωρήματος που διατυπώθηκε και αποδείχθηκε στη διδακτορική διατριβή του Κ. Κοφίνα (τμήμα μαθηματικών, ΑΠΘ 2009) και εφαρμόζεται για οποιαδήποτε σχετικά ελεύθερη μηδενοδύναμη ομάδα, και αντίστοιχα για σχετικά ελεύθερη μηδενοδύναμη Lie άλγεβρα.
description: In this thesis, we will study nilpotent groups and their Lie algebras. In particular, for every free metabelian and nilpotent group Gn,c , we associate two Lie algebras, LQ(Gn,c) and LQ(Gn,c). We prove that LQ(Gn,c) is free metabelian and nilpotent, and that LQ(Gn,c)~ LQ(Gn,c). Moreover, let Mn,c be a free metabelian and nilpotent Lie algebra, freely generated by the set X. Using the Baker – Campbell – Hausdorff formula, we give Mn,c the structure of a group, and let H be its subgroup that is generated by the set X. We prove that H is isomorphic to Gn,c and that Mn,c ~LQ(Η)~ LQ(Η). This theorem is mostly based on the theory that has been proved by K Kofinas in his thesis (department of mathemattcs, AUTH 2009), and that is applied to any relatively free nilpotent group, as well as in any relatively free nilpotent Lie algebra.
Διαπολιτισμική επικοινωνία, αφομοίωση και νέες ταυτότητες: Δυτικές επιδράσεις στη βυζαντινή τέχνη της Κύπρου μεταξύ 14ου και 16ου αιώνα:
Creators: name: Παπαδάμου, Χρυσοβαλάντης Γιαννάκη
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Βυζαντινή Τέχνη
Κύπρος
Κυπροαναγεννησιακή Σχολή
Byzantine Art
Cyprus
Kyproanagennisiaki School

description: Η παρούσα διπλωματική εργασία ερευνά τις δυτικές επιδράσεις και τα τεκμήρια των αναγεννησιακών φαινομένων στην αρχιτεκτονική και ζωγραφική της Κύπρου από τον 14ο μέχρι τον 16ο αιώνα. Η συμβίωση Ορθοδόξων και Λατίνων στην Κύπρο παρήγαγε φαινόμενα πολιτιστικής όσμωσης σε ποικίλους τομείς, και ιδίως στην εκκλησιαστική αρχιτεκτονική και ζωγραφική. Όσον αφορά την αρχιτεκτονική, στα αστικά κέντρα του νησιού οι λατίνοι οικοδόμησαν σ’ ένα πρώιμο στάδιο, ως ένδειξη της ισχύος και της υπεροχής τους, επιβλητικούς γοτθικούς ναούς που επηρέασαν και την εκκλησιαστική αρχιτεκτονική των ορθοδόξων. Ως προς τη μνημειακή ζωγραφική και την τέχνη των φορητών εικόνων, οι δυτικές επιδράσεις κατά τους πρώτους αιώνες της φραγκικής κυριαρχίας παρουσιάζονται σε δευτερεύοντα κυρίως σημεία των συνθέσεων. Με την πάροδο, όμως, των αιώνων και την εξομάλυνση των σχέσεων μεταξύ κυρίαρχων και κυριαρχούμενων, οι επιδράσεις αυτές καθίστανται εναργέστερες. Ιδιαίτερα δε μετά την προσάρτηση της Κύπρου στη Βενετία και τη συνακόλουθη αύξηση της επικοινωνίας των Κυπρίων με τη Δύση, η βυζαντινή τέχνη του νησιού εμπλουτίζεται με τις τεχνοτροπικές και εικονογραφικές τάσεις της ιταλικής Αναγέννησης, γεγονός που αποτυπώνεται στη βυζαντινή ζωγραφική του νησιού με την ανάδειξη της Κυπροαναγεννησιακής Σχολής.
description: This postgraduate thesis examines the western influence and the impact of Renaissance on the Cypriot architecture and painting between the 14th and 16th century. As Cypriot-Orthodox and Catholics lived alongside each other in Cyprus, a cultural osmosis phenomenon emerged in various fields, especially in church architecture and painting. Regarding architecture, at an early stage Catholics built in the island’s urban areas, as a sign of their power and superiority, imposing Gothic temples that had an effect on the Cypriot-Orthodox church architecture. In the monumental painting and art of icons, during the first centuries of Frankish rule the western influence mainly appears in some rather secondary elements of the paintings. But over the centuries and after the improvement in the relations between the rulers and their subjects, this influence becomes more evident. Especially, after the annexation of Cyprus by Venice and the increase of the ties between Cypriots and the West, the Byzantine art of the island is enriched with the iconographic and stylistic trends of the Italian Renaissance, which is reflected in Byzantine painting of the island with the creation of the Kyproanagennisiaki School at the end of the 15th century.
Η στάση της Βουλγαρίας στο Μακεδονικό Ζήτημα (1948-1967): ανάμεσα στο βουλγαρικό εθνικισμό και τον προλεταριακό διεθνισμό:
Creators: name: Δημητριάδης, Βασίλειος Σάββα
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Βουλγαρία
Μακεδονικό Ζήτημα
Διεθνισμός
Bulgaria
Macedonian Question
Internationalism

description: Σκοπός της μεταπτυχιακής διατριβής υπήρξε η κατάδειξη της στάσης της Βουλγαρίας έναντι του Μακεδονικού ζητήματος, κατά την περίοδο 1948 – 1967, και ειδικότερα η σκιαγράφηση των διακυμάνσεων στις σχέσεις ανάμεσα στη Βουλγαρία και τη Γιουγκοσλαβία, υπό τη σκιά τόσο της κομμουνιστικής ιδεολογίας όσο και του βουλγαρικού εθνικισμού ως ενοποιητικούς ή διχαστικούς παράγοντες, ενώ η εν γένει προσέγγιση στην παραπάνω θεματική πραγματοποιήθηκε με βάση χρονικές ενότητες άμεσα συνυφασμένες με γεγονότα κλειδιά, καθοριστικά για τις εκάστοτε εξελίξεις. Στην εισαγωγή της διατριβής επιχειρούμε να εντοπίσουμε σημεία σταθμούς της αλληλεπίδρασης του προλεταριακού διεθνισμού και του εθνικισμού. Ακολούθως καλύπτονται οι ακόλουθοι περίοδοι: από τις απαρχές του Δευτέρου Παγκοσμίου Πολέμου μέχρι το 1949, λίγο μετά δηλαδή τη ρήξη ανάμεσα στον Τίτο και τον Στάλιν. Στη συνέχεια αναλύονται τα γεγονότα από το 1950 μέχρι και το 1953, οπότε και πεθαίνει ο Στάλιν. Ακολουθεί το κεφάλαιο που καλύπτει την περίοδο από το 1954 μέχρι το 1962, όπου παρουσιάζονται οι διακυμάνσεις στις σχέσεις της Βουλγαρίας με τη Γιουγκοσλαβία, σε μια ταραχώδη, για τη διεθνή πολιτική σκηνή, δεκαετία. Τέλος, η διατριβή ολοκληρώνεται με την ανάλυση της αποκρυσταλλοποίησης της βουλγαρικής εξωτερικής κα εσωτερικής πολιτικής των χρόνων 1963 – 1967. Σε αυτό το κεφάλαιο έχουν εγκολπωθεί και αδημοσίευτα μέχρι σήμερα βουλγαρικά έγγραφα.
description: The purpose of this essay was to pinpoint the stance of Bulgaria toward the Macedonian issue during the period 1948 – 1967 and especially to describe the turbulences in the Bulgarian- Yugoslavian relations, under the aspect of communist ideology and Bulgarian nationalism as factors of unity or discord. As a whole the essay is presented based in chronically divided chapters directly linked with key events, which determine the varying backgrounds. In the introduction of the essay is being attempted to locate the key events of the effects that had nationalism upon proletarian internationalism. Afterwards a division is being followed, which is consisted from the following chapters: from the beginning of the Second World War until 1949, a year after the split between Tito and Stalin. After this chapter the events from 1950 to 1953, which is the year Stalin died, are being analyzed. Next is the chapter which refers to the period from 1954 to 1962, where are being presented the turbulences in the Bulgarian-Yugoslavian relations during a difficult, for the international political scene, period. Finally the essay is being concluded with the analyze of the formation of the Bulgarian foreign and domestic policy during the years 1963 – 1967. In this final chapter are concluded unpublished Bulgarian documents.
Environments of a sample of AzTEC submillimetre galaxies in the COSMOS field
Creators: name: Crespo, N. Álvarez
name: Smolčić, V.
name: Finoguenov, A.
name: Barrufet, L.
name: Aravena, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Submillimetre galaxies (SMGs) are bright sources at submillimetre wavelengths. Made up of mostly of high-z galaxies, SMGs are amongst the most luminous dusty galaxies in the Universe. Studying their environments and clustering strength is thus important to put these galaxies in a cosmological context. We present an environmental study of a sample of 116 SMGs in 96 ALMA observation fields, which were initially discovered with the AzTEC camera on ASTE and identified with high-resolution ALMA imaging within the COSMOS survey field, having either spectroscopic or unambiguous photometric redshift. We analysed their environments making use of the latest release of the COSMOS photometric catalogue, COSMOS2015, a catalogue that contains precise photometric redshifts for more than half a million objects over the 2deg2 COSMOS field. We searched for dense galaxy environments computing the so-called overdensity parameter as a function of distance within a radius of 5 arcmin from the SMG. We validated this approach spectroscopically for those SMGs for which spectroscopic redshift is available. As an additional test, we searched for extended X-ray emission as a proxy for the hot intracluster medium, performing an X-ray stacking analysis in the 0.5-2 keV band with a 32 arcsec aperture and our SMG position using all available XMM-Newton and Chandra X-ray observations of the COSMOS field. We find that 27% (31 out of 116) of the SMGs in our sample are located in a galactic dense environment; a fraction that is similar to previous studies. The spectroscopic redshift is known for 15 of these 31 sources, thus this photometric approach is tested using spectroscopy. We are able to confirm that 7 out of 15 SMGs lie in high-density peaks. However, the search for associated extended X-ray emission via an X-ray stacking analysis leads to a detection that is not statistically significant.
description: Accepted for publication in A&A, 12 pages, 1 table, 2 figures
Towards a consistent framework of comparing galaxy mergers in observations and simulations
Creators: name: Wang, L.
name: Pearson, W. J.
name: Rodriguez-Gomez, V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Aims. We aim to perform consistent comparisons between observations and simulations on the mass dependence of the galaxy major merger fraction at low redshift over an unprecedentedly wide range of stellar masses (10^9 to 10^12 solar masses). Methods. We first carry out forward modelling of ideal synthetic images of major mergers and non-mergers selected from the Next Generation Illustris Simulations (IllustrisTNG) to include major observational effects. We then train deep convolutional neural networks (CNNs) using realistic mock observations of galaxy samples from the simulations. Subsequently, we apply the trained CNNs to real the Kilo-Degree Survey (KiDS) images of galaxies selected from the Galaxy And Mass Assembly (GAMA) survey. Based on the major merger samples, which are detected in a consistent manner in the observations and simulations, we determine the dependence of major merger fraction on stellar mass at z around 0.15 and make comparisons between the two. Results. The detected major merger fraction in the GAMA/KiDS observations has a fairly mild decreasing trend with increasing stellar mass over the mass range 10^9 < M_sun < M_star < 10^11.5 M_sun. There is good agreement in the mass dependence of the major merger fraction in the GAMA/KiDS observations and the IllustrisTNG simulations over 10^9.5 M_sun < M_star < 10^10.5 M_sun. However, the observations and the simulations show some differences at M_star > 10^10.5M_sun, possibly due to the supermassive blackhole feedback in its low-accretion state in the simulations which causes a sharp transition in the quenched fractions at this mass scale. The discrepancy could also be due to the relatively small volume of the simulations and/or differences in how stellar masses are measured in simulations and observations.
description: 12 pages, 12 figures, accepted for publication in A&A
Estimating the concentration parameter of a von Mises distribution: a systematic simulation benchmark
Creators: name: Marrelec, Guillaume
name: Giron, Alain
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Mathematical Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: In directional statistics, the von Mises distribution is a key element in the analysis of circular data. While there is a general agreement regarding the estimation of its location parameter μ, several methods have been proposed to estimate the concentration parameter κ. We here provide a thorough evaluation of the behavior of 12 such estimators for datasets of size N ranging from 2 to 8192 generated with a κ ranging from 0 to 100. We provide detailed results as well as a global analysis of the results, showing that (1) for a given κ, most estimators have behaviors that are very similar for large datasets (N≥16) and more variable for small datasets, and (2) for a given estimator, results are very similar if we consider the mean absolute error for κ≤1 and the mean relative absolute error for κ≥1.
Observational Constraints on the Cosmology with Holographic Dark Fluid
Creators: name: Huang, Da
name: Lee, Bum-Hoon
name: Tumurtushaa, Gansukh
name: Yin, Lu
name: Zhang, Yun-Long
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the holographic Friedman-Robertson-Walker (hFRW) universe on the 4-dimensional membrane embedded in the 5-dimensional bulk spacetime and fit the parameters with the observational data. In order to fully account for the phenomenology of this scenario, we consider the models with the brane cosmological constant and the negative bulk cosmological constant. The contribution from the bulk is represented as the holographic dark fluid on the membrane. We derive the universal modified Friedmann equation by including all of these effects in both braneworld and holographic cutoff approaches. For three specific models, namely, the pure hFRW model, the one with the brane cosmological constant, and the one with the negative bulk cosmological constant, we compare the model predictions with the observations. The parameters in the considered hFRW models are constrained with observational data. In particular, it is shown that the model with the brane cosmological constant can fit data as well as the standard $Λ$CDM universe. We also find that the $σ_8$ tension observed in different large-structure experiments can be effectively relaxed in this holographic scenario.
description: 20 pages, 3 figures
Factors which influence the performance of alkylammonium compounds as wood preservatives
Creators: name: Doyle, Andress Kirsty
Publisher: name: University of British Columbia
Year: 2009

description: There has been an ongoing debate into the reasons behind the unexpected failure of alkylammonium compound (AAC) treated wood in field trials. The main objectives of this thesis were to investigate wood and fungal interactions with AAC wood preservatives, in order to help answer the question regarding lack of performance. Fixation studies found that ion exchange plays a minor role in the adsorption of AACs in the outer regions of the wood. Both fixation and cell wall distribution studies indicated that AACs preferentially bind onto the lignin. Cellular distribution studies using SEM-EDX showed that several factors influenced the retention and distribution of AACs. These included cell type, wood species, sample size, solution pH and treating concentration. The above work suggests that AAC distribution in the wood has a single weakness. AACs in the earlywood tracheids are prone to leaching and decline rapidly from the outer surface. These characteristics would result in areas without protection against invading organisms. Mobility studies indicated that DDAC depletion in a flooded soil bed study was a combination of both physical leaching and biological effects. Bioassay analysis indicated that standard deteriorating fungi were sensitive to AACs. Field isolations yielded DDAC tolerant Verticillium spp., an Acremonium sp. and Gliocladium roseum. Further studies found that these tolerant organisms could degrade AACs in a wood matrix. This highlights an area of concern where the presence of non-decay fungi, could colonize the AAC-treated wood and may degrade the AACs in the wood to levels inadequate to control wood decay fungi.
title: Portainjertos de Manzano :
title: Directrices para la ejecución del examen de la distinción, la homogeneidad y la estabilidad.
titleType: Subtitle
Creators: name: International Union For The Protection Of New Varieties Of Plants,
Publisher: name: International Union for the Protection of New Varieties of Plants,
Year: 0
Subjects: Apple Rootstock
Group identity.
New Varieties of Plants

description: La finalidad de estas directrices (“directrices de examen”) es elaborar los principios que figuran en la Introducción General (documento TG/1/3) y sus documentos TGP conexos, con objeto de que sirvan de orientación práctica y detallada para el examen armonizado de la distinción, homogeneidad y estabilidad (DHE) y en particular, para identificar los caracteres apropiados para el examen DHE y producir descripciones armonizadas de variedades.
Genealogy of catalytic branching models
Creators: name: Greven, Andreas
name: Popovic, Lea
name: Winter, Anita
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J80, 60K37, 60B11, 92D25 (Primary)

description: We consider catalytic branching populations. They consist of a catalyst population evolving according to a critical binary branching process in continuous time with a constant branching rate and a reactant population with a branching rate proportional to the number of catalyst individuals alive. The reactant forms a process in random medium. We describe asymptotically the genealogy of catalytic branching populations coded as the induced forest of $\mathbb{R}$-trees using the many individuals--rapid branching continuum limit. The limiting continuum genealogical forests are then studied in detail from both the quenched and annealed points of view. The result is obtained by constructing a contour process and analyzing the appropriately rescaled version and its limit. The genealogy of the limiting forest is described by a point process. We compare geometric properties and statistics of the reactant limit forest with those of the "classical" forest.
description: Published in at http://dx.doi.org/10.1214/08-AAP574 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Anomalous softening of phonon-dispersion in cuprate superconductors
Creators: name: Sarkar, Saheli
name: Grandadam, Maxence
name: Pépin, Catherine
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A softening of phonon-dispersion has been observed experimentally in under-doped cuprate superconductors at the charge-density wave (CDW) ordering wave vector. Interestingly, the softening occurs below the superconducting (SC) transition temperature T$_{c}$, in contrast to the metallic systems, where the softening occurs usually below the CDW onset temperature T$_{\text{CDW}}$. An understanding of the `anomalous' nature of the phonon-softening and its connection to the pseudo-gap phase in under-doped cuprates remain open questions. Within a perturbative approach, we show that a complex interplay among the ubiquitous CDW, SC orders and life-time of quasi-particles associated to thermal fluctuations, can explain the anomalous phonon-softening below T$_{c}$. Furthermore, our formalism captures different characteristics of the low temperature phonon-softening depending on material specificity.
description: Supplementary included
Dispersive forces on bodies and atoms: a unified approach
Creators: name: Raabe, Christian
name: Welsch, Dirk-Gunnar
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A unified approach to the calculation of dispersive forces on ground-state bodies and atoms is given. It is based on the ground-state Lorentz force density acting on the charge and current densities attributed to the polarization and magnetization in linearly, locally, and causally responding media. The theory is applied to dielectric macro- and micro-objects, including single atoms. Existing formulas valid for weakly polarizable matter are generalized to allow also for strongly polarizable matter. In particular when micro-objects can be regarded as single atoms, well-known formulas for the Casimir-Polder force on atoms and the van der Waals interaction between atoms are recovered. It is shown that the force acting on medium atoms--in contrast to isolated atoms--is in general screened by the other medium atoms.
description: 10 pages, 2 embedded figures
Libellula sabina Drury 1773
Creators: name: Hagen, H.
Publisher: name: Zenodo
Year: 1863
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Libellula
Libellula sabina

description: 1. L. Sabina Drury.
 - L. Sabina Drury. L. gibba F., L. leptura Burm.,  L. ampullacea  Schneid. (von den beiden letzten besitze ich die Typen), bilden sehr wahrscheinlich eine Art, die sich über den ganzen Süden Asiens verbreitet. Ich kenne sie aus China, Manilla, Tiınor, Nikobaren, Java, Ceylon, Iııdien, (Tranquebar, Bombay), Arabien, Cypern, Kleinasien. Aus Cypern habe ich ein Pärchen (Mus. Vienn.), aus Syrien (Lederer), aus Arabien und Kleinasien drei einzelne Männchen gesehen, die sich durch hellere Thorax-Binden bei sonst dunkler mehr brauner Färbung als eigene Race entscheiden.
 Die Type von L. ampullacea aus Kellemísch hat überdiess nur 10 Antecubitalen, das Pärchen aus Cypern 10-12, die übrigen bis 14. Der bei Burmeister angeführte Fundort Insel St. Johanna der Comoren ist zn streichen diese Art ist nach Untersuchung der Type verschieden.
description: Published as part of Hagen, H., 1863, Die Odonaten- und Nenropteren-Fauna Syriens und Klein-Asiens, pp. 193-199 in Wiener Entomologische Monatschrift 7 on pages 194-195, DOI: 10.5281/zenodo.3528093
Microscopic calculations of double and triple Giant Resonance excitation in heavy ion collisions
Creators: name: Lanza, E. G.
name: Catara, F.
name: Andres, M. V.
name: Chomaz, Ph.
name: Fallot, M.
name: Scarpaci, J. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We perform microscopic calculations of the inelastic cross sections for the double and triple excitation of giant resonances induced by heavy ion probes within a semicalssical coupled channels formalism. The channels are defined as eigenstates of a bosonic quartic Hamiltonian constructed in terms of collective RPA phonons. Therefore, they are superpositions of several multiphonon states, also with different numbers of phonons and the spectrum is anharmonic. The inclusion of (n+1) phonon configurations affects the states whose main component is a n-phonon one and leads to an appreacible lowering of their energies. We check the effects of such further anharmonicities on the previous published results for the cross section for the double excitation of Giant Resonances. We find that the only effect is a shift of the peaks towards lower energies, the double GR cross section being not modified by the explicity inclusion of the three-phonon channels in the dynamical calculations. The latters give an important contribution to the cross section in the triple GR energy region which however is still smaller than the experimental available data. The inclusion of four phonon configurations in the structure calculations does not modify the results.
description: Revtex4, to be published in PRC
Quantum random number generator based on photonic emission in semiconductors
Creators: name: Stipcevic, M.
name: Rogina, B. Medved
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report upon a novel principle for realization of a fast nondeterministic random number generator whose randomness relies on intrinsic randomness of the quantum physical processes of photonic emission in semiconductors and subsequent detection by the photoelectric effect. Timing information of detected photons is used to generate binary random digits-bits. The bit extraction method based on restartable clock theoretically eliminates both bias and autocorrelation while reaching efficiency of almost 0.5 bits per random event. A prototype has been built and statistically tested.
description: 7 pages, 7 figures