cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Η ολοκληρωμένη και συμβατική διαχείριση της καλλιέργειας κερασιάς στο νομό Πιερίας
Creators: name: Μήχου, Αννα Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Ολοκληρωμένη διαχείριση καλλιεργειών
Καλλιέργεια κερασιών
Integrated crop management
Cherries cultivation

description: Η παρούσα εργασία μελετάει τα κοινωνιολογικά και οικονομικά χαρακτηριστικά 25 γεωργικών εκμεταλλευσεων ολοκληρωμενης διαχείρισης καλλιέργειας κερασιάς και 25 γεωργικών εκμεταλλεύσεων συμβατικής διαχείρισης κερασιάς για την καλλιεργητική περίοδο 2005-2006 στο Νομό Πιερίας. Οπως προέκυψε από την έρευνα, η ολοκληρωμένη διαχείριση επέφερε μείωση στις δαπάνες εισροών, ενώ ανέπτυξε την ευαισθησία των παραγωγών απέναντι στο περιβάλλον, την ασφάλεια των ίδιων και των καταναλωτών.
description: In the current project, the social and economical characteristics of 25 farms that implement an integrated crop management (ICM) system for cherries cultivation and 25 farms of conventional management are studied. ICM systems, apart from the production of high quality products, led to decrease of the input cost and moreover increased the farmers' sensitivity regards environmental issues, their personal safety and the safety of the consumers.
AstroSat Soft X-ray observations of the symbiotic recurrent nova V3890 Sgr during its 2019 outburst
Creators: name: Singh, K. P.
name: Girish, V.
name: Pavana, M.
name: Ness, Jan-Uwe
name: Anupama, G. C.
name: Orio, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Two long AstroSat Soft X-ray Telescope observations were taken of the third recorded outburst of the Symbiotic Recurrent Nova, V3890 Sgr. The first observing run, 8.1-9.9 days after the outburst, initially showed a stable intensity level with a hard X-ray spectrum that we attribute to shocks between the nova ejecta and the pre-existing stellar companion. On day 8.57, the first, weak, signs appeared of Super Soft Source (SSS) emission powered by residual burning on the surface of the White Dwarf. The SSS emission was observed to be highly variable on time scales of hours. After day 8.9, the SSS component was more stable and brighter. In the second observing run, on days 15.9-19.6 after the outburst, the SSS component was even brighter but still highly variable. The SSS emission was observed to fade significantly during days 16.8-17.8 followed by re-brightening. Meanwhile the shock component was stable leading to increase in hardness ratio during the period of fading. AstroSat and XMM-Newton observations have been used to study the spectral properties of V3890 Sgr to draw quantitative conclusions even if their drawback is model-dependence. We used the xspec to fit spectral models of plasma emission, and the best fits are consistent with the elemental abundances being lower during the second observing run compared to the first for spectra >1 keV. The SSS emission is well fit by non-local thermal equilibrium model atmosphere used for white dwarfs. The resulting spectral parameters, however, are subject to systematic uncertainties such as completeness of atomic data.
description: 15 pages, 10 figures, Accepted for publication in the Monthly Notices of the Royal Astronomical Society
Quantification of H2O contents in silicate glasses using IR spectrocopy - a calibration based on hydrous glasses analyzed ba Karl-Fischer titration
Creators: name: Behrens, Harald
name: Stuke, Alexandra
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2003
Subjects: subject: 660

description: Water-related IR absorption bands were investigated in hydrous soda-lime-silica glass (SLS) and float glass (FG). Glasses containing between 0.5 and 6 wt% H2O (corresponding to 0.7 and 8 mol/1) were synthesized in platinum capsules by re-melting glass powder to which water had been added. Synthesis were perfomed in an internally heated gas pressure vessel at temperatures of 1200 to 1250 °C and pressures 100 to 500 MPa. The total water content (Cwater) of glasses was analyzed by pyrolysis and subsequent Karl- Fischer titration. Five bands at 3550, 2850, 2350, 1730 and 1635 cm-1 in the IR spectrum of an SLS glass containing 4 wt% H2O were identified as vibration modes of water-related species by comparison with a D2O-bearing glass. With increasing Cwater the absorbance band at 3550 cm-1 (OH stretch of weakly H-bonded hydrous species) grows in intensity relative to the band at 2850 cm-1 (OH Stretch of strongly H-bonded hydrous species). As a consequence, the practical absorption coefficient for the band at 3550 cm-1 (ε3550pract, defined by assigning the total water to this band) is 20 % lower at 0.1 wt% water than at 4 wt% water. The dependence of ε3550pract on Cwater is most pronounced above 0.5 wt% but appears to be present also in water-poor glasses. In contrast, ε2850pract does not noticeably depend on water content (FG: ε2850pract = (40.2 ± 2.4) l∙mol-1∙cm-1; SLS: ε2850pract = (50.8 ± 2.0) l∙mol-1∙cm-1) and, hence, it is preferred for water determination in float glass and soda-lime-silica glass. Scholze's two-band method [1] using the peak height of both bands at 3550 and 2850 cm-1 to quantify Cwater in glasses is a suitable first approach also for hydrous glasses, predicting the water content within 20 % relative. However, for a more precise determination the dependence of the ε-values on Cwater has to be considered. Α preliminary evaluation of the H2O bending vibration band at 1635 cm-1 shows that molecular H2O is a minor hydrous species in FG and SLS glasses with a maximum concentration of 2.0 wt% in FG glass containing 5.7 wt% total water. On the basis of the new spectroscopic results and data from literature the assignment of the so-called ABC triplet (bands 2850, 2350 and 1750 cm-1) is discussed.
Pulse-and-Glide Driving with Drivability Constraints: A Pontryagin Approach
Creators: name: Whitehair, Carey A.
name: Denlinger, Michelle A. K.
name: Fathy, Hosam K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper uses Pontryagin methods to analyze pulse-and-glide driving for different nominal vehicle speeds. There is significant literature supporting the fact that pulse-and-glide has the potential to reduce fuel consumption compared to driving at a constant speed, but the benefits at a variety of nominal speeds remain relatively unexplored. Building on the literature, we formulate a speed trajectory optimization problem where the objective is a linearly-scalarized Pareto combination of fuel consumption and average vehicle speed, in addition to a quadratic penalty on jerk. By analyzing this optimization problem using Pontryagin methods, we show that (i) for each nominal speed, there is a critical penalty on jerk below which the optimal solution is pulse-and-glide, (ii) without any penalty on jerk, the optimal pulse-and-glide trajectory switches infinitely fast, and (iii) above a critical nominal velocity, the optimal solution is steady-speed driving rather than pulse-and-glide, regardless of the penalty on jerk.
Additional file 6 of Agreement Between Heart Rate Variability - Derived vs. Ventilatory and Lactate Thresholds: A Systematic Review with Meta-Analyses
Creators: name: Tanner, Valérian
name: Millet, Grégoire P.
name: Bourdillon, Nicolas
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Biotechnology
Chemical Sciences not elsewhere classified
Science Policy
Mental Health

description: Supplementary Material 6: HRVT2 moderator analyses
The third post-Newtonian gravitational wave polarisations and associated spherical harmonic modes for inspiralling compact binaries in quasi-circular orbits
Creators: name: Blanchet, Luc
name: Faye, Guillaume
name: Iyer, Bala R.
name: Sinha, Siddhartha
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The gravitational waveform (GWF) generated by inspiralling compact binaries moving in quasi-circular orbits is computed at the third post-Newtonian (3PN) approximation to general relativity. Our motivation is two-fold: (i) To provide accurate templates for the data analysis of gravitational wave inspiral signals in laser interferometric detectors; (ii) To provide the associated spin-weighted spherical harmonic decomposition to facilitate comparison and match of the high post-Newtonian prediction for the inspiral waveform to the numerically-generated waveforms for the merger and ringdown. This extension of the GWF by half a PN order (with respect to previous work at 2.5PN order) is based on the algorithm of the multipolar post-Minkowskian formalism, and mandates the computation of the relations between the radiative, canonical and source multipole moments for general sources at 3PN order. We also obtain the 3PN extension of the source multipole moments in the case of compact binaries, and compute the contributions of hereditary terms (tails, tails-of-tails and memory integrals) up to 3PN order. The end results are given for both the complete plus and cross polarizations and the separate spin-weighted spherical harmonic modes.
description: includes corrections to be published in an erratum; the changes are: in Eq (5.15b), -484/105 -> -188/35; in Eq (8.9g), 81127/10080 -> 1369/160; Eq (8.10g), -48239/5040 -> -2419/240; Eq (9.4b), -995/84 -> -353/28
Analysis of welding distortion using qualitative and semi-qualitative techniques
Creators: name: Zhou, Ye
Publisher: name: University of British Columbia
Year: 2009

description: In planning and design of engineering projects, engineers are often required to decide upon a course of action irrespective of the completeness and accuracy of available information. With the fast development of computer technology, many numerical analysis tools have arisen to assist engineering decision-making based on complete design information, which is, however, rarely available at most design stages. Little has been done to help engineers make sound decisions when complete design information is not available. Qualitative and Semi- Quantitative Reasoning, a branch in the field of Artificial Intelligence, has the ability of analyzing "ill"-defined problems using sound and clear arguments which are based on facts. This thesis is an attempt to tackle "ill"- defined engineering problems with the above mentioned reasoning techniques. This thesis revolves around the topic of shrinkage and distortion in welded structures. Steel fabrication frequently involves the joining of components by welding. Each component must be fabricated to particular dimensional tolerances. Distortion caused by welding is a frequently occurring problem that makes it difficult to estimate the dimensions of the finished structures and thus increases the fabrication costs. Welding distortion is a poorly quantified phenomenon controlled by many factors that are difficult to describe numerically. The characteristics of the distortion problems make the traditional numerical analysis very arduous and expensive to apply. Due its high complexity, for many years, welding distortion problems have been approached primarily empirically or by trial and error, and uncertain design factors cannot be effectively considered. In this thesis, a computer software tool was developed using qualitative and semi-quantitative techniques, attempting to solve complex welding distortion problems with unclearly specified design factors. With the assistance of this software tool, it is hoped to make the efforts of predicting and controlling welding distortion become more of a science rather than an art.
The impact of ad-blockers on product search and purchase behavior: A lab experiment
Creators: name: Frik, Alisa
name: Haviland, Amelia
name: Acquisti, Alessandro
Publisher: name: Carnegie Mellon University
Year: 2021
Subjects: subject: 150599 Marketing not elsewhere classified
subject: FOS: Economics and business
subject: 80602 Computer-Human Interaction
subject: FOS: Psychology

description: . Ad-blocking applications have become increasingly popular among Internet users. Ad-blockers offer various privacy- and security-enhancing features: they can reduce personal data collection and exposure to malicious advertising, help safeguard users' decision-making autonomy, reduce users' costs (by increasing the speed of page loading), and improve the browsing experience (by reducing visual clutter). On the other hand, the online advertising industry has claimed that ads increase consumers' economic welfare by helping them find better, cheaper deals faster. If so, using ad-blockers would deprive consumers of these benefits. However, little is known about the actual economic impact of ad-blockers. We designed a lab experiment (N=212) with real economic incentives to understand the impact of ad-blockers on consumers' product searching and purchasing behavior, and the resulting consumer outcomes. We focus on the effects of blocking contextual ads (ads targeted to individual, potentially sensitive, contexts, such as search queries in a search engine or the content of web pages) on how participants searched for and purchased various products online, and the resulting consumer welfare. We find that blocking contextual ads did not have a statistically significant effect on the prices of products participants chose to purchase, the time they spent searching for them, or how satisfied they were with the chosen products, prices, and perceived quality. Hence we do not reject the null hypothesis that consumer behavior and outcomes stay constant when such ads are blocked or shown. We conclude that the use of ad-blockers does not seem to compromise consumer economic welfare (along the metrics captured in the experiment) in exchange for privacy and security benefits. We discuss the implications of this work in terms of end-users' privacy, the study's limitations, and future work to extend these results.
Presented at the 29th USENIX Security Symposium, August 12-14, 2020
Chiral properties of the constituent quark model
Creators: name: Lucha, Wolfgang
name: Melikhov, Dmitri
name: Simula, Silvano
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that, in a model based exclusively on constituent-quark degrees of freedom interacting via a potential, the full axial current is conserved if the spectrum of \bar QQ states contains a massless pseudoscalar. The current conservation emerges nonperturbatively if the model satisfies certain constraints on (i) the axial coupling g_A of the constituent quark and (ii) the \bar QQ potential at large distances. We define the chiral point of the constituent quark model as that set of values of the parameters (such as the masses of the constituent quarks and the couplings in the \bar QQ potential) for which the mass of the lowest pseudoscalar \bar QQ bound state vanishes. At the chiral point the main signatures of the spontaneously broken chiral symmetry are shown to be present, namely: the axial current is conserved, the decay constants of the excited pseudoscalar bound states vanish, and the pion decay constant has a nonzero value.
description: 4 pages, Talk given at the Conference "Quark Confinement and the Hadron Spectrum VII", 2 - 7 September 2006, Ponta Delgada, Asores, Portugal
Electromagnetic force in electric glass melting
Creators: name: Hofmann, Otto R.
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2003
Subjects: subject: 660

description: Electromagnetic effects occur in electrically heated glass melts. Sometimes this fact causes disadvantages but it also offers the chance to influence the glass flow beneficially. Α Lorentz force can be generated by a strong external magnetic field called "Fremdfeld" (foreign field). The Lorentz force in the "Eigenfeld" (eigenfield) that is caused by the magnetic field around the current density in the glass can be neglected. Α specific Lorentz force in the "Eigenfeld of the electrode" occurs in electric glass melting using rod electrodes and results from the magnetic field around these electrodes. The numeric JENA-HLX code was employed to calculate the current density distribution for complex voltages and the temperature-dependent electric conductivity. The magnetic field was built up according to the Biot-Savart law. Α first computer calculation shows that the Lorentz force will become the second driving force besides buoyancy near electrodes, provided electrode currents are about 800 Α or higher. Α second numeric trial dealt with a side-wall, a bottom and a top electrode in R-S-T connection. Here the most significant effect occurred at side-wall electrodes, where horizontal velocities increased. The third test was carried out to learn more about the Lorentz force in an electrically heated crucible. Here the most interesting effects were to observe when a Fremdfeld was applied to the electrically heated fluid. In modelling external horizontal and vertical magnetic fields, the resulting fluid flow depends on the mutual orientation and the phase shift between current density and magnetic field. For instance, the forced glass melt rotation around the electrodes is reversed if this phase shift changes from 0° to 180°. To sum up, the Lorentz force offers various opportunities to control the glass flow.
Οψεις των ελληνοβουλγαρικών σχέσεων κατά τη διάρκεια του μεσοπολέμου
Creators: name: Μαστρογεώργης, Γεώργιος Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Ελληνοβουλγαρικές σχέσεις
Μεσοπόλεμος
Εδαφικό ζήτημα
Μειονοτικό ζήτημα
Αποζημιώσεις
Πολεμικές επανορθώσεις
Greekbulgarian relations
Middlewar
Territorial issue
Minority issue
Financial reparations
War reparations

description: Η εργασία ως σκοπό έχει να εξετάσει το πλαίσιο των ελληνοβουλγαρικών σχέσεων κατά τη διάρκεια του Μεσοπολέμου. Τρία είναι τα ζητήματα που απασχόλησαν τις δύο χώρες αυτήν την περίοδο:α) το εδαφικό ζήτημα, β) το μειονοτικό ζήτημα και γ) το ζήτημα των πολεμικών επανορθώσεων της Βουλγαρίας και των αποζημιώσεων των ατόμων που συμπεριλήφθηκαν στην εθελοντική ανταλλαγή πληθυσμών της Συνθήκης του Νεϊγύ.
description: This paper attends to examine the Greekbulgarian relations, during the Middlewar (1919-1939). In this specific period the relations between the two countries remained tense as they were the past few years. There are three main issues that caused problems between Greece and Bulgaria from 1919 to 1939. The first big issue is the territorial problem i.e. Bulgaria seeking the annexation of Western Thrace. The second issue is the minority problem i.e. Bulgaria demanding that Slavophones of Greece be recognised as Bulgarians. Related to this problem is the difference between Greece and Bulgaria which has to do with the financial reparations for the exchanged populations of the Treaty of Neilly and war reparations of Bulgaria. Having examined these issues the study ends with a short report of the course of the two countries during the Second World War.
Spatially resolved star formation and fuelling in galaxy interactions
Creators: name: Moreno, Jorge
name: Torrey, Paul
name: Ellison, Sara L.
name: Patton, David R.
name: Bottrell, Connor
name: Bluck, Asa F. L.
name: Hani, Maan H.
name: Hayward, Christopher C.
name: Bullock, James S.
name: Hopkins, Philip F.
name: Hernquist, Lars
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the spatial structure and evolution of star formation and the interstellar medium (ISM) in interacting galaxies. We use an extensive suite of parsec-scale galaxy merger simulations (stellar mass ratio = 2.5:1), which employs the "Feedback In Realistic Environments-" model (fire-2). This framework resolves star formation, feedback processes, and the multi-phase structure of the ISM. We focus on the galaxy-pair stages of interaction. We find that close encounters substantially augment cool (HI) and cold-dense (H2) gas budgets, elevating the formation of new stars as a result. This enhancement is centrally-concentrated for the secondary galaxy, and more radially extended for the primary. This behaviour is weakly dependent on orbital geometry. We also find that galaxies with elevated global star formation rate (SFR) experience intense nuclear SFR enhancement, driven by high levels of either star formation efficiency (SFE) or available cold-dense gas fuel. Galaxies with suppressed global SFR also contain a nuclear cold-dense gas reservoir, but low SFE levels diminish SFR in the central region. Concretely, in the majority of cases, SFR-enhancement in the central kiloparsec is fuel-driven (55% for the secondary, 71% for the primary) -- whilst central SFR-suppression is efficiency-driven (91% for the secondary, 97% for the primary). Our numerical predictions underscore the need of substantially larger, and/or merger-dedicated, spatially-resolved galaxy surveys -- capable of examining vast and diverse samples of interacting systems -- coupled with multi-wavelength campaigns aimed to capture their internal ISM structure.
description: 21 pages, 9 figures, MNRAS accepted. For videos: http://research.pomona.edu/galaxymergers/videos/
Scalar meson properties from D-meson decays
Creators: name: El-Bennich, B.
name: Leitner, O. M. A.
name: Loiseau, B.
name: Dedonder, J. -P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Decay amplitudes of D(D_s)->f0(980)X, X=pi, K, are compared to experimental branching ratios with the aim of singling out the poorly known D->f0(980) transition form factor in these amplitudes. Since the other elements of the amplitudes are either calculable in an effective QCD theory using operator product expansion or are known from experiment (e.g. the pion and kaon decay constants), we can take advantage of these reactions to constrain the transition form factors obtained in relativistic quark models. In these models, the f0(980) wavefunction requires an unknown size parameter for both its non-strange ubar u(dbar d) and strange sbar s components, which we fit to the D(D_s) decay data.
description: Talk given at the Few Body 18 conference in Santos, Brazil. 4 pages, to be published in Nuclear Physics A
Magnetotransport in semiconductors and two-dimensional materials from first principles
Creators: name: Desai, Dhruv C.
name: Zviazhynski, Bahdan
name: Zhou, Jin-Jian
name: Bernardi, Marco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate a first-principles method to study magnetotransport in materials by solving the Boltzmann transport equation (BTE) in the presence of an external magnetic field. Our approach employs ab initio electron-phonon interactions and takes spin-orbit coupling into account. We apply our method to various semiconductors (Si and GaAs) and two-dimensional (2D) materials (graphene) as representative case studies. The magnetoresistance, Hall mobility and Hall factor in Si and GaAs are in very good agreement with experiments. In graphene, our method predicts a large magnetoresistance, consistent with experiments. Analysis of the steady-state electron occupations in graphene shows the dominant role of optical phonon scattering and the breaking of the relaxation time approximation. Our work provides a detailed understanding of the microscopic mechanisms governing magnetotransport coefficients, establishing the BTE in a magnetic field as a broadly applicable first-principles tool to investigate transport in semiconductors and 2D materials.
description: 7 pages, 4 figures - corrected typos, and minor corrections to last section
Triplet-Singlet Spin Relaxation in Quantum Dots with Spin-Orbit Coupling
Creators: name: Climente, Juan I.
name: Bertoni, Andrea
name: Goldoni, Guido
name: Rontani, Massimo
name: Molinari, Elisa
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We estimate the triplet-singlet relaxation rate due to spin-orbit coupling assisted by phonon emission in weakly-confined quantum dots. Our results for two and four electrons show that the different triplet-singlet relaxation trends observed in recent experiments under magnetic fields can be understood within a unified theoretical description, as the result of the competition between spin-orbit coupling and phonon emission efficiency. Moreover, we show that both effects are greatly affected by the strength of the confinement and the external magnetic field, which may give access to very long-lived triplet states as well as to selective population of the triplet Zeeman sublevels.
description: 5 pages, 3 figures. Closely related to recent experiments in cond-mat/0609726
Zeolite-type and nepheline crystals in glass-ceramics
Creators: name: Erdmann, Mandy
name: Stachel, Dörte
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2003
Subjects: subject: 660

description: Zeolites are hydrated alumino-silicates. They crystallize in framework structures. Zeolites are used in the catalysis, adsorption, drying and separation teehnologies. Glass-ceramies are polycrystalline solids prepared by controlled crystallization of glasses, with interesting properties. Α new field of application can be opened by combination of the properties of zeolites and glass-ceramics. For example, material surfaces can be functionalized (membranes, foams) or special geometries for catalysis can be stabilized. It is possible to design glass-ceramics with a zeolite as crystal phase. In this study further investigations of the phase distribution and the interface between the crystal phases will be presented. Glasses with a composition similar to the stoichiometric composition of a zeolite were melted with partial subtitution of NaF for Na2CO3. Samples of these glasses were crystallized at various temperatures. The zeolitic phase Na6[AlSiO4]6 and the nepheline were precipitated in two of the glass compositions at all crystallization temperatures. Na6[AlSiO4]6 is a zeolite of the sodalite type. The interface between the zeolite and the nepheline will be shown. The nepheline seems to grow radially (epitaxially) on the zeolite. The obtained zeolite does not correspond to the synthesis compositions of the glasses.
Bed mobility of gravel rivers: mobilization (scour) depth of chum salmon redds, and equilibrium bedload transport
Creators: name: Rennie, Colin D.
Publisher: name: University of British Columbia
Year: 2009

description: This thesis is an investigation of bed mobility in gravel-bed rivers. In particular, two hypotheses are addressed: 1) that mobilization (scour) depth in salmon egg nests (redds) differs from that of surrounding bed, and 2) that equilibrium bedload transport rate in gravel-bed rivers can be predicted by assuming equal mobility and accounting for armouring and particle hiding/exposure. To test the first hypothesis, a single spawning reach of Kanaka Creek, British Columbia was monitored for scour depth using a spatially intensive array of wiffle-ball monitors. Monitors were placed in and around egg pockets and tailspills of chum salmon (Oncorhynchus keta) redds. Scour and fill were recorded during each flood event of the 1997/98 flood season. Only one flood event was observed to cause widespread and deep scour and fill. Scour and fill were found to be highly spatially variable, and depended upon local factors such as bed structure, proximity to banks, and the influence of flow obstructions such as large woody debris. Despite the most spatially intensive monitoring to date, no spatial autocorrelation was observed in scour depths. By various nonparametric analyses of variance, mean scour depth of redd egg pockets was not found to differ significantly from that of surrounding bed, but the mean scour depth in tailspills of redds was significantly different from surrounding bed. However, small sample sizes limit the generality of the results. The second hypothesis was evaluated by development of a largely empirical model. Fractional bedload transport rates were estimated through modification of a bedload estimate for median size particles. Armouring was considered through modification of the fractional transport rate by the percent representation in the surface of the size fraction. The effects of relative differences in particle size, due to hiding/exposure interactions and different particle mass, were considered by means of a mobility factor (D/D50)\ Data from ten different studies, including 38 surface/subsurface size distributions and 17 equal transport mobility fractional bedload rate data sets, were utilized to develop the model. Equal transport mobility was assumed to evaluate the exponent x. The exponent x was found empirically to be a function of the surface sorting. The modified transport during a state of equal transport mobility was empirically found to be a function of the nondimensional bed shear stress. Finally, a simple model was proposed to estimate mean scour depth during high flow (equally mobile) events. The scour model combined the new bedload transport model with a fundamental bedload model. Somewhat surprisingly, due to uncertainty in estimates for scour model inputs, the scour model appeared to perform well when tested against the scour measurements.
Ο βίος του αγίου Γεωργίου σε φορητές εικόνες και σε έργα μικροτεχνίας από τα τέλη του 12ου αιώνα ώς το 19ο αιώνα
Creators: name: Θεοχάρη, Καλυψώ Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Ο βίος του αγίου Γεωργίου
Ο εικονογραφικός κύκλος του βίου του αγ. Γεωργίου
Οί σκηνές του εικονογραφικού κύκλου
Φορητές εικόνες
Εργο μικροτεχνίας
Πηγές βίου
Αγιολογικά κείμενα
The life of St. George
The pictorial cycle of the life of St. George
The scenes of the pictorial cycle
Portable icons
Miniature works
Text sources of the life of St. George

description: Η παρούσα διπλωματική πραγματεύεται το βίο του Αγ. Γεωργίου έτσι όπως εξελίσσεται στις φορητές εικόνες και το έργο μικροτεχνίας από τα τέλη του 12ου ως το 19ο αι. Ο εικονογραφικός κύκλος του βίου του Αγ. Γεωργίου διαμορφώθηκε κάτω από την επίδραση πολλών παραγόντων οι οποίοι σε κάθε περίπτωση αποτελούν και το εικονογραφικό του πρότυπο. Αυτό ισχύει και για μνημειακούς εικονογραφικούς κύκλους. Επί παραδείγματι, ο αριθμός και το είδος των σκηνών επηρεάστηκε (στις φορητές εικόνες/έργα μικροτεχνίας) τόσο από το αγιολογικό κείμενο, όσο και από άλλα μνημεία (τοιχογραφίες/φορητές εικόνες/έργα μικροτεχνίας μικρογραφ. μηνολόγια), καλλιτεχνικές σχολές, τοπικές παραδόσεις. Ο αριθμός των σκηνών αυτών ξεκινά από δύο και φτάνει έως τις σαράντα πέντε, ενώ το είδος τους ποικίλει.
description: The subject of the present suggests the life of St. George in the way it develops on portable icons and on miniature works since the end of the 12th century to the 19th century. The pictorial cycle of the life of St. George improved due to several factors, each of them, in every case, constitutes the pictorial model. The same factors have improved monumental pictorial cycles also. For example, the number and the subject of the scene were influenced (in portable icons and miniature works) by the textual sources of the life of St. George, other monuments (portable icons, miniature works, monumental painting, miniature manuscripts), art schools, local traditions in art. The number of the scenes begins from two and reaches forty five and the subjects vary also.
Additional file 1 of Pharmacogenomics-assisted treatment versus standard of care in schizophrenia: a systematic review and meta-analysis
Creators: name: Das, Saibal
name: Kalita, Manoj
name: Makhal, Manabendra
name: Devaraja, M
name: Bagepally, Bhavani Shankara
name: Cherian, Jerin Jose
name: Aadityan, Rajesh
name: Bhattacharjee, Mounamukhar
name: Mondal, Sarnendu
name: Sen, Sreyashi
name: Mondal, Manaswini
name: Basu, Aniruddha
name: Dutta, Atanu Kumar
name: Saha, Indranil
name: Saha, Asim
name: Chakrabarti, Amit
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Pharmacology
Biotechnology
Science Policy
Mental Health

description: Supplementary Material 1
Population size effects in evolutionary dynamics on neutral networks and toy landscapes
Creators: name: Sumedha
name: Martin, Olivier C
name: Peliti, Luca
Publisher: name: arXiv
Year: 2006
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We study the dynamics of a population subject to selective pressures, evolving either on RNA neutral networks or in toy fitness landscapes. We discuss the spread and the neutrality of the population in the steady state. Different limits arise depending on whether selection or random drift are dominant. In the presence of strong drift we show that observables depend mainly on $M μ$, $M$ being the population size and $μ$ the mutation rate, while corrections to this scaling go as 1/M: such corrections can be quite large in the presence of selection if there are barriers in the fitness landscape. Also we find that the convergence to the large $M μ$ limit is linear in $1/M μ$. Finally we introduce a protocol that minimizes drift; then observables scale like 1/M rather than $1/(Mμ)$, allowing one to determine the large $M$ limit faster when $μ$ is small; furthermore the genotypic diversity increases from $O(\ln M)$ to $O(M)$.
description: 25 Pages, replaced with revised version,submitted to J Stat
Χρήση αντιδράσεων ετερο-Diels-Alder σε προσπάθειες σύνθεσης βιολογικά ενεργών μορίων
Creators: name: Αλεξανδράκη, Ελλη Στυλιανού
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Αναδράσεις ετερο-Diels-Alder
Τροποποιημένο νουκλεοτίδιο
Μονομορίνη
Κρισπίνη Α
Αντίδραση Friedel-Crafts
Οξείδωση Baeyer-Villigger (Παρασκευή δ-βαλερολακτόνης)
Βρωμίωση ακετυλοομάδας
Hetero-Diels-alder reactions
Dna biomimetic molecute
Monomorine
Crispine A
Friedel Crafts reaction
Bayer Villinger oxidation (Preparation of δ-valerolactone)
Bromiation of acetylo group

description: Στην παρούσα εργασία έγινε προσπάθεια σύνθεσης α) ενός μιμητικού μορίου του DNA, β) της μονομορίνης (3-βούτυλ-5-μεθυλοκταϋδροϊνδολιζίνης) και γ) της κρισπίνης Α. Και οι τρεις συνθέσεις είχαν ως βασικό στάδιο μια κυκλοπροσθήκη ετερο-Diels-Alder, εκμεταλλευόμενες τις πολλές δυνατότητές της αντίδρασης αυτής.
description: Our attempt in this essay was to compose a) a DNA biomimetic molecule, b) monomorine and c) crispine A. The basic stage of each of these three synthesis was an hetero-Diels-Alder cycloaddiction, which would allow us to take advantage of its great potentials.
In-vitro dissolution of vitreous silicate fibres according to EURIMA test guideline - Results of two Round Robins
Creators: name: Guldberg, Marianne
name: Madsen, Anders Lie
name: Sebastian, Klaus
name: Fellman, Jacob
name: Potter, Russell
name: Corning, Owens
name: Bauer, Jon
name: Manville, Johns
name: Searl, Alison
name: Maquin, Bertrand
name: Jubb, Gary
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2003
Subjects: subject: 660

description: The EURIMA (The European Insulation Manufacturers Association) test guideline "In-vitro acellular dissolution of man-made vitreous silicate fibres" provides a state-of-the-art method for measuring in-vitro dissolution rates relevant for evaluating the biopersistence of insulation wool fibres and other vitreous silicate fibres. Based on this guideline two Round Robins were conducted as well as specific investigations on the influence of selected test parameters. Nine and six laboratories, respectively, participated in the two Round Robins. The standard deviation between Kdis results obtained by different laboratories was slightly lower in the second Round Robin ranging from 24 to 61 % (highest for the low-soluble fibres). The relatively high inter-laboratory variation suggests that the equipment, setup and procedures should be specified in much more detail in a future test method. Key parameters to be kept constant are flow rate/surface area and liquid composition, and care should be taken to maintain constant conditions and eliminate outlier measurements. Α laboratory may use the method described in the guideline for quality assurance of maintained biosolubility and for development of alternative fibre modifications as the method is well suited for ranking different fibres with respect to dissolution coefficients within one laboratory. However, caution should be exercised when comparing values obtained by one laboratory to values obtained by another.
Optical properties of window glass in the 40 to 630 °C temperature range at wavelengths from 2.0 to 4.3 μm
Creators: name: Efimov, Andrei M.
name: Van Nijnatten, Peter A.
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2003
Subjects: subject: 660

description: The optical properties of float window glass in the 2300 to 5000 cm-1 (4.3 to 2.0 µm) region at temperatures from 40 to 630 °C are investigated. The absorption spectra are measured with a high-temperature accessory. The spectra of the optical constants, individual components of the absorption spectra, and also the band frequencies and intensities are calculated with the dispersion analysis method. The effect of temperature on the spectra is shown to be due to changes in the intensities of certain water-related bands. The most important intensity changes are discussed in terms of the reversible shift of an equilibrium between different structural sites for the hydroxyl group.
Additional file 2 of Pharmacogenomics-assisted treatment versus standard of care in schizophrenia: a systematic review and meta-analysis
Creators: name: Das, Saibal
name: Kalita, Manoj
name: Makhal, Manabendra
name: Devaraja, M
name: Bagepally, Bhavani Shankara
name: Cherian, Jerin Jose
name: Aadityan, Rajesh
name: Bhattacharjee, Mounamukhar
name: Mondal, Sarnendu
name: Sen, Sreyashi
name: Mondal, Manaswini
name: Basu, Aniruddha
name: Dutta, Atanu Kumar
name: Saha, Indranil
name: Saha, Asim
name: Chakrabarti, Amit
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Pharmacology
Biotechnology
Science Policy
Mental Health

description: Supplementary Material 2
A Sharp Fannes-type Inequality for the von Neumann Entropy
Creators: name: Audenaert, Koenraad M. R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We derive an inequality relating the entropy difference between two quantum states to their trace norm distance, sharpening a well-known inequality due to M. Fannes. In our inequality, equality can be attained for every prescribed value of the trace norm distance.
description: 5 pages, 3 figures
Ants are not Conscious
Creators: name: Standish, Russell K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: Anthropic reasoning is a form of statistical reasoning based upon finding oneself a member of a particular reference class of conscious beings. By considering empirical distribution functions defined over animal life on Earth, we can deduce that the vast bulk of animal life is unlikely to be conscious.
Analysis of dissolution of a spherical gas bubble in a glass melt in the presence of a flow and a fast redox reaction
Creators: name: Lertskrai, Supawan
name: Kalachev, Leonid
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2003
Subjects: subject: 660

description: Modeling a process of dissoludon of a slowly moving gas bubble in a glass melt can be reformulated as a problem of dissoludon of a stadonary bubble in a flow. It is shown that in the presence of fast redox reaction (outside the bubble) the effect of the flow on the time of dissolution is negligible. Many authors omit the flow when modeling dissolution of bubbles in glass melts. This analysis specifies the conditions under which such omission can be justified. Due to the presence of fast reaction the problem is singularly perturbed. The boundary function method was used to obtain asymptotic approximation of the solution. Asymptotic results are compared with numerical computations performed for the original statement of the problem.
Extinction coefficients of the OH bands in the IR spectra of basic and water-enriched silicate and aluminosilicate glasses
Creators: name: Peuker, Christel
name: Reinholz, Uwe
name: Jäger, Christian
name: Pauli, Jutta
name: Geißler, Heinz
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2003
Subjects: subject: 660

description: OH bands in the MIR and NIR spectra of selected silicate and aluminosilicate glasses were studied. The spectra of basic and water-enriched samples were compared. The ratio of the absorption coefficients of the IR bands at 3550 and 2800 cm-1 attributed to weakly and strongly hydrogen-bonded OH species, respectively, increases by more than 15 up to 70 % with water content in the glasses. These IR findings were confirmed by 1H MAS NMR measurements for a sodium calcium silicate glass. The practical extinction coefficients ε3550, pract and ε4500 increase with the water content for the alkali calcium silicate glasses as well as for the glasses with the components RO (R = Sr, Ba), AI2O3 and SiO2. For the basic glasses the values of ε3550, pract and ε4500 vary from 15 to 40 1 ∙ mol-1 ∙ cm-1 and from 0.16 to 0.41 1 ∙ mol-1 ∙ cm-1, respectively. No changes in these coefficients were found for glasses of the compositions (in mol%) 33 CaO ∙ y Al2O3 ∙ (67-y) SiO2 ( y = 5, 8, 12) with values about 60 and 0.65 1 ∙ mol-1 ∙ cm-1 for ε3550, pract and ε4500 and for bottle glasses. Furthermore, some changes were obtained in the glass network due to the hydration procedure. Α very small amount of fourfold coordinated aluminium (less than 0.3 mol% AI2O3) was found by 27Al MAS NMR measurements in a hydrated glass with the nominal composition (in mol%) 16 Na2O ∙ 10 CaO ∙ 74 SiO2. IR reflectance measurements suggest an incorporation of aluminium in the glass network for strontium aluminosilicate glasses. Thus, the increase in the practical extinction coefficients of the OH bands can be caused by an increasing water content as well as by small changes in the glass composition due to the hydration procedure. Α satisfactory agreement was found between water concentration values which were determined by NRA (nuclear reaction analysis) experiments and those which were calculated from IR measurements by the so called two-band method with composidon independent extinction coefficients for the OH bands at about 3550 and 2800 cm-1.
Processing techniques for photostructurable glasses
Creators: name: Mrotzek, Susanne
name: Harnisch, Alf
name: Hungenbach, Gudrun
name: Strahl, Holger
name: Hülsenberg, Dagmar
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2003
Subjects: subject: 660

description: Photostructurable glasses have been known for a long time. Through miniaturization they can be used as micromechanical components, e.g. sensors, grippers, additional components for analytical Instruments, microactuators, fluid and optical components, and numerous other applications. At the Technical University of Ilmenau (Department of Glass and Ceramic Technology) various photostructurable glasses have been developed in the last decade. Additionally, many process-technical investigations were carried out. As a result of these investigations specific parameters were determined creating a basis for the conception of a modular system for the fully automated production of micromechanical glass components. The modular system consists of three modules for the main steps of the process: exposure module, curing module and etching module. Additionally there is a cleaning process integrated in a separate part of the exposure module. The application of the glass wafers is realized by an input magazine, the processed wafers are placed in an output magazine. The system is calculated for small and medium-sized companies and the processing of 10 000 wafers per year.
On the Temperature Profiles and Emission Spectra of Mini-Neptune Atmospheres
Creators: name: Piette, Anjali A. A.
name: Madhusudhan, Nikku
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Atmospheric observations of mini-Neptunes orbiting M-dwarfs are beginning to provide constraints on their chemical and thermal properties, while also providing clues about their interiors and potential surfaces. With their relatively large scale heights and large planet-star contrasts, mini-Neptunes are currently ideal targets towards the goal of characterising temperate low-mass exoplanets. Understanding the thermal structures and spectral appearances of mini-Neptunes is important to understand various aspects of their atmospheres, including radiative/convective energy transport, boundary conditions for the interior, and their potential habitability. In the present study, we explore these aspects of mini-Neptunes using self-consistent models of their atmospheres. We begin by exploring the effects of irradiation, internal flux, metallicity, clouds and hazes on the atmospheric temperature profiles and thermal emission spectra of temperate mini-Neptunes. In particular, we investigate the impact of these properties on the radiative-convective boundary and the thermodynamic conditions in the lower atmosphere, which serves as the interface with the interior and/or a potential surface. Building on recent suggestions of habitability of the mini-Neptune K2-18 b, we find a range of physically-motivated atmospheric conditions that allow for liquid water under the H_2-rich atmospheres of such planets. We find that observations of thermal emission with JWST/MIRI spectrophotometry can place useful constraints on the habitability of temperate mini-Neptunes such as K2-18 b, and provide more detailed constraints on the chemical and thermal properties of warmer planets such as GJ 3470 b. Our results underpin the potential of temperate mini-Neptunes such as K2-18 b as promising candidates in the search for habitable exoplanets.
description: Accepted for publication in ApJ, 25 pages, 11 figures