cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Transcription of "Coyote and the Sweetball"
Creators: name: Parker, Verdena
name: Newbold, Lindsey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-280610-01: Transcription of the story "Coyote and the Sweetball" (file VP-111106-06), from 25:27 to the end of the story at 26:46
Το δίκαιο του ισχυρότερου στην Αρχαία Ελληνική Σκέψη. "Οι φιλοσοφικές καταβολές της ιδέας"
Creators: name: Βαβούρας, Ηλίας Στεφάνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Το δίκαιο του ισχυρότερου
Ισχύς
Πειθώ
Βία
Απάτη
Τυραννία, Δημοκρατία, Κυβέρνηση

description: Φέροντας τον βαρύνοντα τίτλο «Το Δίκαιο του Ισχυροτέρου», το έργο αυτό του Ηλία Βαβούρα επιχειρεί να αναδείξει την πολεμική του μεγάλου φιλοσόφου Πλάτωνα εναντίον της σοφιστικής και των εκπροσώπων της. Μελέτη εξαιρετικής δυναμικής, με πολυσχιδείς φιλοσοφικές προοπτικές και αντιμαχόμενες προσεγγίσεις, το κείμενο διαπερνά με ενάργεια και με ομολογημένη από τον αναγνώστη εγκυρότητα-επιστημονικότητα το σύνολο της ηθικής σφαίρας και προβληματικής. «Το δίκαιο του ισχυρότερου», η αντίθεση «νόμος-φύσις», η «ρητορική», η «πειθώ», η «δικαιοσύνη», το «αγαθό», η «πολιτική», η «δημοκρατία», η «τυραννία», είναι μερικές μόνο απο τις έννοιες που διαπλέκονται, υπό τη δίνη μιας φιλοσοφικής έριδας, ανάμεσα στη σωκρατική υπεροχή του νου και τη φυσικοδικαιϊκή Καλλίκλεια αντιμετώπιση, που αναγνωρίζει το δίκαιο στην πλευρά της ανυπέρβλητης ισχύος και στηρίζει το δικαίωμα του ισχυρού ατόμου να κρατά κάτω από την εξουσία του τις ασθενέστερες φύσεις. Μια έριδα που στη διαλεκτική της πορεία δεν αφήνει ανέγγιχτες ούτε προσωπικότητες του εύρους, ενός Περικλή, Μιλτιάδη ή Θεμιστοκλή και τελικά αποκρυσταλλώνεται στη νιτσεϊκή ρήση: θέληση για δύναμη.
description: With the important title "the Right of most powerful", this work of Ilias Vavouras attempts analyse the polemics of big philosopher Plato against the sophistic movement and her representatives. Study of exceptional dynamic, with multifarious philosophical prospects and fighting approaches, the text penetrates with clearnness and with admitted from the reader validity-scientific character the total of moral sphere and questioning."The right of most powerful", the opposition "law -nature", the "rhetoric", the "persuasion", the "justice", the "virtue", the "politics", the "democracy", the "tyranny", are certain only from the significances that are intermingled, under the maelstrom of philosophical dispute, beetween the socratic supremacy of mind and the natural-right confrontation of Callicles, that recognizes the right in the side of magnificent force and supports the right of powerful individual to keep under his power worse natures. A dispute that in her dialectic course does not leave antouched nor personalities of breadth, Pericles, Miltiades or Themistokles and finally is crystallized in the utterance of Nietzsche : will for power.
Optical absorption and fluorescent behaviour of selenium in ternary silicate glasses
Creators: name: Khan, M. Arif
name: Bansal, Prashant
name: Shukla, Padmaja
name: Singh, Saryoo Prasad
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2004
Subjects: subject: 660

description: Optical absorption and fluorescent behaviour of selenium in the ternary soda-lime-silica, soda-strontia-silica and soda-baria-silica glasses having molar composition 20Na2O-10RO-70SiO2 (where R = Ca, Sr and Ba) were studied systematically. Selenium in its elemental form was found to produce a variety of pink colour shades in soda-lime-siliea and soda-strontia-silica glasses by optical absorption measurements whereas the infrared transmission studies detected the presence of selenium as selenite (SeO3 2-) and selenate (SeO4 2-) ions which did not produce any color in glass. The results of optical measurements in the glass containing Se ⇌ SeO3 2- ⇌ SeO4 2- species were discussed in the light of the general principles of spectroscopy. The molar extinetion coefficient of selenium was calculated and found to be around 20 and 80 1 ∙ mol-1 ∙ cm-1 respectively, in soda-lime-siliea and soda-strontia-silica glasses at their wavelength maxima at around 485 and 500 nm, whieh dictated the intensity of the broad absorption bands marked due to selenium in the glass. However, the selenium was found to produce a golden yellow color in soda-baria-silica glass. This is due to the shift of the valence state of selenium towards the selenite (SeO3 2-) and selenate (SeO4 2-) state with increasing basicity of the glass. The values of the emission cross-section obtained for selenium based on the fluorescence spectral studies showed that the soda-lime-siliea glass emitted more intense fluorescence than the rest of the silicate glasses.
Developing dna-mediated proximity assembly circuit for actuating biochemical reactions and molecular sensing
Creators: name: Oh, Sung Won
Publisher: name: No Publisher Supplied
Year: 2021

description: Life functions are regulated by numerous biochemical reactions occurring in cells. Mimicry of this regulation of biochemical reactions in a non-living system can be found useful in many applications. Recently, self-assembled DNA nanostructures have been developed to organize the assembly of biomolecular components and to regulate the components’ interactions and reactions. These discoveries are promising to have a revolutionary impact on medical diagnostics and therapeutics.This dissertation presents a novel DNA-mediated proximity assembly circuit (DPAC) of biochemical reactions. The assembly circuit is regulated by a DNA logic-AND-gate module, which is comprised of a DNA hairpin-locked catalytic cofactor and a toehold or an aptamer. Targets of nucleic acids, small molecules, or proteins trigger the conformational switch of DPAC by dynamic mechanisms of toehold-mediated strand displacement or aptamer switch and exposes the cofactor. When enzyme/cofactor pair actuates a reaction, colorimetric or fluorescence signals are produced and detected.DPAC can be optimized to detect a wide range of biotargets. The molecular sensing of adenosine and COVID-19 virus is explored. After optimization, DPAC can be transferred to a paper-based assay and be used for point-of-care diagnostics. This idea and the commercialization potential of this technology was explored through participation in the Innovation Corps program by the National Science Foundation.
Mid-infrared laser absorption spectroscopy for process and emission control in the glass melting industry : Part 2. Difference frequency generation based MIR laser spectrometer for glass melting furnaces
Creators: name: Wondraczek, Lothar
name: Heide, Gerhard
name: Frischat, Günther Heinz
name: Khorsandi, Alireza
name: Willer, Ulrike
name: Schade, Wolfgang
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2004
Subjects: subject: 660

description: Emerging techniques of mid-infrared absorption spectroscopy offer potentially great sensitivity and selectivity for combustion control and emission monitoring. Beeause of that, a differenee frequency based mid-infrared absorption spectrometer has been considered for application in the glass industry. Based on preliminary tests within laboratory conditions, a spectrometer which operates at wavelengths around 5 μm was applied to online monitoring of the atmosphere of a gas fired glass melting furnace. The CO concentration was measured in order to demonstrate the feasibility of a mid-infrared absorption spectrometer for process control in the glass industry. Α series of measurements was performed in situ as well as crossing the recuperator entry, resulting in general advice on the construction of a prototype device.
Free electron nanolaser based on the graphene plasmons
Creators: name: Avetissian, H. K.
name: Avchyan, B. R.
name: Mkrtchian, G. F.
name: Matevosyan, H. H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this paper, a possible way to achieve lasing from THz to extreme UV domain due to stimulated scattering of graphene plasmons on the free electrons is considered. The analytical-quantitative description of the proposed FEL scheme is based on the self-consistent set of the Maxwell--Vlasov equations. We study the downconversion as well as the upconversion. It is shown that the coherent downconversion of infrared radiation to THz one can be achieved using a source of very non-relativistic electrons at the resonant coupling with the graphene plasmons. Due to the strongly confined graphene plasmons, the upconversion of mid-infrared to extreme UV radiation can be achieved with the mildly relativistic electron beams. The latter is a promising mechanism for the tabletop short-wavelength free electron nanolaser.
description: 16 pages, 3 figures
San Francisco Case Study: Pedestrian Safety and Bus Efficiency Tradeoffs
Creators: name: Lo, Agnes
Publisher: name: University of Chicago
Year: 2020
Subjects: subject: San Francisco
subject: pedestrian
subject: case study
subject: public transportation
subject: pedestrian safety
subject: traffic
subject: transit

description: Globally, multi-modal transportation agencies constantly struggle to balance both efficiency and safety between various forms of pedestrian, vehicular, and transit traffic. City traffic systems must rely on street design and precise signal engineering to influence millions of human and mechanical movements daily. Considering the myriad traffic variables influencing these systems’ performance, it is difficult or impossible for transit agencies to satisfy all transportation users simultaneously. San Francisco’s traffic signal retiming project demonstrates firsthand how protecting pedestrian safety can come at a cost to transit efficiency.
Experimental study on the effect of cullet and batch water content on the melting behavior of flint and amber container glass batches
Creators: name: Dubois, Olivier
name: Conradt, Reinhard
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2004
Subjects: subject: 660

description: The melting behavior of two commereial flint and amber glass batches with varied cullet content (0, 40, 65 % and 0, 40, 76 %, respectively) and batch water additions (0 to 5 %) was investigated. The cullet was a blend of up to five industrial types and grades, including ground cullet. Local temperature, electrical conductivity, and thermal diffusivity were determined in 200 g scale tests as a function of temperature, while the vertical distribution of the former two properties was determined by 10 kg tests in 5 cm high batch piles charged on top of a pre-heated glass melt (7 kg). The set of methods applied was established as a service tool for the quantitative comparison of the batch-to-melt conversion of different batches in general. For the flint and amber glass batches investigated, cullet additions primarily improved the thermal behavior, with moderate versus high additions required for flint and amber, respectively. The silica dissolution in cullet-free batches was enhanced by batch water additions, but retarded again with increasing cullet eontent. The presence of phonolite besides batch water and cullet yielded especially negative results.
Pi-eta scattering and the resummation of vacuum fluctuation in three-flavour ChPT
Creators: name: Kolesar, M.
name: Novotny, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss various aspects of resummed chiral perturbation theory, which was developed recently in order to consistently include the possibility of large vacuum fluctuations of the ss-pairs and the scenario with smaller value of the chiral condensate for N_f=3. The subtleties of this approach are illustrated using a concrete example of observables connected with pi-eta scattering. This process seems to be a suitable theoretical laboratory for this purpose due to its sensitivity to the values of the O(p^4) LEC's, namely to the values of the fluctuation parameters L4 and L6. We discuss several issues in detail, namely the choice of `good' observables and properties of their bare expansions, the `safe' reparametrization in terms of physical observables, the implementation of exact perturbative unitarity and exact renormalization scale independence, the role of higher order remainders and their estimates. We make a detailed comparison with standard chiral perturbation theory and use generalized ChPT as well as resonance chiral theory to estimate the higher order remainders.
description: Version submitted to EPJ C
Pintar al-Aflak : Integrasi Ilmu Islam dan STEM
Creators: name: Mohammaddin Bin Abdul Niri
Publisher: name: figshare
Year: 2021
Subjects: Education

description: Niri, M.A. (2020). Pintar al-Aflak Integrasi Ilmu Islam dan STEM. Dewan Kosmik, Kuala Lumpur: Dewan Bahasa dan Pustaka, Bil. 10, h. 24-25, ISBN : 9770128657134.
Optimization of conditioning devices in the glass industry
Creators: name: Reeßing, Friedrich
name: Schötz, Eberhard
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2004
Subjects: subject: 660

description: The considerations concerning velocity distribution of the glass melt in conditioning deviees, dependent on temperature distribution, are made for circular cross-sections. An analogous application of the results to rectangular cross-sections is possible. There are limits for the cooling performanee for a given channel design whieh cannot be exceeded simply by further lowering of the margin temperature or by using a stronger cooling outside. Α strong cooling can cause the danger of devitrification and thermal reboil. These problems can be avoided by mathematical simulations and appropriate measures derived from them. Calculations of electric current density show that there exist local maxima at the intake port above and below the vertical tube and at the left and right side of the entrance area of the plunger cell. It is advantageous to increase the platinum wall thickness in these areas. As a result of optimization a better operation and high thermal homogeneity at the hollow glass forming is possible together with reduced gob mass fluctuations down to 0.5 to 0.1 %. In the same way with homogeneous glass it is possible to reduce markedly the fluctuations of diameter and thickness in the case of tubing.
In situ degradation of YSZ and YSZ + Al2O3 electrolytes of sensors used in glass melting furnaces
Creators: name: Rodrigues, Carlos M.
name: Marques, Fernando M. B.
name: Labrincha, João A.
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2004
Subjects: subject: 660

description: This work reports on the degradation of pure YSZ and YSZ +10 wt% alumina composite electrolytes by exposure to the atmosphere of a heat recovery chamber of an industrial glass furnace, at a temperature around 1300 °C. Microstructural observations and impedance spectroscopy measurements were used to evaluate the corrosion effects. YSZ samples directly placed in the sidewalls and intimately exposed to the dusts and volatiles in the atmosphere show strong corrosion effects after short periods. These samples present large amounts of a glassy phase in the intergranular region, containing the same elements as the common batch with inclusion of volatile species from the fuel. At the same time, the average composition of YSZ grains remains almost unchanged. Effects on the electrical properties are obviously stronger in the intergranular response, as confirmed by changes in the typical relaxation frequency. The protection of samples and/or their careful placement in the furnace strongly inhibit the corrosion process. The effectiveness of alumina addition to the YSZ electrolyte in increasing its corrosion resistance was only tested in protected samples, where the corrosion is less severe. For this reason, the expected benefits of this incorporation were found almost irrelevant.
Ενας νέος αλγόριθμος αναγνώρισης ομιλητή
Creators: name: Μοσχονάς, Παναγιώτης Μιχαήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Αναγνώριση ομιλητή
Πιθανοκρατικό μοντέλο
Επισημειωμένο κείμενο
Δεδομένα ομιλίας
Specker recognition/identification
Mel frequency cepstral coefficients, MFCC
Probabilistic latent semantic analysis, PLSA
Annotated text data, audio

description: Ο αλγόριθμος βασίζεται στο σώμα ομιλίας ενός συνόλου ομιλητών. Το σήμα ομιλίας είναι επισημειωμένο που έχει μεταγραφεί σε κείμενο. Ο αλγόριθμος επεξεργάζεται με στατιστικές μεθόδους το κείμενο και το ηχητικό σήμα ομιλίας και εκτιμά έναν άγνωστο ομιλητή.
description: The algorithm is based on audio and text data. Text data derived from the speaker's speech data. Via a statistical process, the proposed method outputs an estimation of the unknown speaker's identity
Vector dark matter from a gauged $SU(2)$ symmetry
Creators: name: Nomura, Takaaki
name: Okada, Hiroshi
name: Yun, Seokhoon
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a scenario of dark sector described by a hidden $SU(2)$ gauge symmetry which is broken by a vacuum expectation value(VEV) of a scalar multiplet. We discuss a general mass relation among $SU(2)$ gauge bosons after spontaneous symmetry breaking which is determined by weight of gauge group representation associated with a scalar multiplet developing VEV. Then a model with quintet and triplet scalar fields is discussed in which hidden gauge boson can be dark matter(DM) stabilized by remnant discrete $Z_2$ symmetry and resonant dark matter annihilation is realized by mass relation between DM and mediator. We estimate relic density and spin independent DM-nucleon scattering cross section searching for allowed parameter region.
description: 13 pages, 3 figures
Internal friction peak of the mixed-alkali glass 0.96Li2O∙0.04Na2O∙3.0SiO2
Creators: name: Sakai, Toshihiko
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2004
Subjects: subject: 660

description: Internal friction, electrical conductivity and oxygen tracer diffusivity were measured of 0.96Li2O∙0.04Na2O∙3.0SiO2 glass. The internal friction curve exhibited a compound peak, which was resolved into its two components: a low-temperature peak and a mixedalkali peak, whose activation energies were determined. These values were then compared with the activation energies of electrical conductivity and oxygen tracer diffusivity. Results show that, in agreement with earlier findings, the low-temperature peak is due to the movement of alkali ions. Results also suggest that the mixed-alkali peak is due to the movement of nonbridging oxygen ions.
Anomalous Wtb coupling effects in the weak radiative B-meson decay
Creators: name: Grzadkowski, Bohdan
name: Misiak, Mikolaj
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the effect of anomalous Wtb couplings on the B -> Xs gamma branching ratio. The considered couplings are introduced as parts of gauge-invariant dimension-six operators that are built out of the Standard Model fields only. One-loop contributions from the charged-current vertices are assumed to be of the same order as the tree-level flavour-changing neutral current ones. Bounds on the corresponding Wilson coefficients are derived.
description: 5 pages, 2 figures. The arXiv version remains extended w.r.t. the journal version. The first function in Eq. (12) has been corrected in v3, implying slight changes in the numerical results. Conclusions remain unaffected
Η διακύμανση της μικροβιακής δραστηριότητας σε ορυζώνες κατά τη διάρκεια της καλλιεργητικής περιόδου
Creators: name: Αλαμάνου, Μαρία Διονυσίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Φωσφατάσες (όξινες, αλκαλικές)
Καλλιέργεια ρυζιού
Μικροβιακή δραστηριότητα
Διαθέσιμος οργανικός φώσφορος (Po)
Phosphatases (acid, alkaline)
Rice
Microbial activity
Available organic phosphorus (Po)

description: Σκοπός της εργασίας ήταν να μελετηθεί η δράση των μικροοργανισμών, κατά τη διάρκεια της καλλιεργητικής περιόδου του ρυζιού. Για το σκοπό αυτό μελετήθηκαν οι φωσφατάσες, όξινες και αλκαλικές, σε δύο οριζώνες, στην περιοχή της Σίνδου-Χαλάστρας, στην επιφανειακή στρώση (0-25 cm) και σε βαθύτερες στρώσεις (25-100 cm). Παρατηρήθηκε συσσώρευση της οργανικής ουσίας (0.0) και του οργανικού φωσφόρου (Po) σε αναερόβιες συνθήκες, στην επιφανειακή στρώση. Οταν άρχισε η κατάκλυση των εδαφών η συγκέντρωση του Po μειώθηκε, λόγω απομάκρυνσης με διήθηση-εκροή ή λόγω έντονης ανοργανοποίησης. Ωστόσο σε αναερόβιες συνθήκες η ανοργανοποίηση του Po ήταν μικρή. Βρέθηκε επίσης ότι οι όξινες φωσφατάσες (ΦΟ) στην επιφανειακή στρώση, στον αγρό Α, προέρχονταν κατά 95% από τους μικροοργανισμούς, ενώ στον αγρό Β από το ριζικό σύστημα του ρυζιού, ενώ στις βαθύτερες στρώσεις προέρχονταν από τους μικροοργανισμούς.
description: The aim of this work was to assess the variation of microbial activity (acid and alkaline phosphatases) in two flooded rice fields (A and B), in the topsoil (0-25cm) and subsoil (25-100cm), during cultivation. The study area is located in the prefecture of Thessaloniki (Sindos-Halastra). Accumulation of organic matter and organic phosphorus (Po) was observed under anaerobic conditions, in the topsoil. Under water saturated conditions, concentration of Po reduced, either by the leaching or the intense rate of Po mineralization. Under aerobic conditions the rate of Po mineralization was greater than under anaerobic conditions. Acid phosphatases in the topsoil, in field A, were produced of both the microorganisms and the rooting system, while in field B, they were produced from the rooting system. In the subsoil, acid phosphatases were produced from the microorganisms.
Surface and depth profile analysis of insulating samples by TOF-SIMS
Creators: name: Anderson, Olaf
name: Scheumann, Volker
name: Rothhaar, Uwe
name: Rupertus, Volker
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2004
Subjects: subject: 660

description: The functionahty of modern products made of glass, glass-ceramics, organics or other special materials is mainly dominated by the surface quality. Α well defined lateral homogeneity of the surface stoichiometry is an important requirement for following addedvalue procedures, e.g. optical, mechanical or organic functional coatings. As a characterization tool the time-of-flight secondary ion mass spectrometry (TOF-SIMS) provides analytical information about the chemical matrix in the surface near region with a lateral and depth resolution on the nanometer scale. Corrosion, contamination, interaction with the environment or diffusion of material components are typical phenomena, which can be studied in detail. The results lead to a deeper knowledge of the microscopic material behavior which is one of the basics for the understanding of complex processes in the field of development and production. Typical applications demonstrate the variety of operating a TOF-SIMS analytic tool, which is optimized for the investigation of electrically high insulating sample Systems with various geometric appearance.
Απόψεις εκπαιδευτικών για το έργο των σχολικών συμβούλων
Creators: name: Τριανταφύλλου, Αλεξάνδρα Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Σχολικός σύμβουλος
Εκπαιδευτικά
Πρωτοβάθμια εκπαίδευση
Inspectors and schoold advisors
Teachers
Primary school

description: Μετά από μια μακρά περίοδο κατά την οποία κυριάρχησε στην ελληνική εκπαίδευση ο επιθεωρητής, εισήχθη με το Ν. 1304/82 ο θεσμός του Σχολικού Συμβούλου, ο οποίος εξακολουθεί να λειτουργεί σήμερα. Η εισαγωγή του συνοδεύτηκε από μεγάλη αισιοδοξία αλλά στην πορεία αμφισβητήθηκε έντονα η λειτουργία του, φτάνοντας στο σημείο να απαξιώνεται από τους εκπαιδευτικούς. Οι λόγοι αυτής της αμφισβήτησης, η στάση των εκπαιδευτικών έναντι του έργου των Σχολικών Συμβούλων και των ίδιων των Σχολικών Συμβούλων αλλά και οι προσδοκίες των δασκάλων από τη λειτουργία του θεσμού, διερευνώνται στο πλαίσιο της εργασίας.
description: School advisor has been an institution in greek education system from 1982. Greek teachers wished for it but today, more than 25 years after then, they are disappointed by the way that institution works. This investigation is about teachers' opinions generally about school advisors' work. Also, it's about their (teacher's) expectation from them and their work.
Study of electromagnetic decay of $J/ψ$ and $ψ^\prime$ to vector and pseudoscalar
Creators: name: Zhao, Qiang
name: Li, Gang
name: Chang, Chao-Hsi
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The electromagnetic decay contributions to $J/ψ(ψ^\prime)\to VP$, where $V$ and $P$ stand for vector and pseudoscalar meson, respectively, are investigated in a vector meson dominance (VMD) model. We show that $J/ψ(ψ^\prime)\to γ^*\to VP$ can be constrained well with the available experimental information. We find that this process has significant contributions in $ψ^\prime\to VP$ and may play a key role in understanding the deviations from the so-called "12% rule" for the branching ratio fractions between $ψ^\prime\to VP$ and $J/ψ\to VP$. We also address that the "12% rule" becomes very empirical in exclusive hadronic decay channels.
description: Revtex, 10 pages, 1 eps figure; further discussions about the helicity conservation rule and exp. constraints are included; version to appear in Phys. Lett. B
Ultrafast Carrier Dynamics in Ag-CdTe Hybrid Nanostructure: Non-radiative and Radiative Relaxations
Creators: name: Gurung, Sabina
name: Khatua, Durga Prasad
name: Singh, Asha
name: Jayabalan, J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this article, we study non-radiative and radiative relaxation processes in a hybrid formed by combining Ag nanoparticle (NP) and CdTe quantum dots (QD) using transient transmission spectroscopy. The ultrafast transient transmission of hybrid, when excited at 400 nm, shows a faster recovery of hot electrons at a shorter time scale (few picoseconds) while it shows a slower recovery at a longer time scale (few tens of picoseconds). Further, it is found that the contribution of CdTe QD to the transient transmission is increased in the presence of Ag NP. However, the radiative relaxation in CdTe QDs gets quenched in the presence of Ag NP. This work provides significant insight into the various relaxation processes that leads to the charge transport and PL quenching mechanisms in metal-semiconductor hybrids.
NANOGrav results and Dark First Order Phase Transitions
Creators: name: Addazi, Andrea
name: Cai, Yi-Fu
name: Gan, Qingyu
name: Marciano, Antonino
name: Zeng, Kaiqiang
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The recent NANOGrav evidence of a common-source stochastic background provides a hint to Gravitational Waves (GW) radiation from the Early Universe. We show that this result can be interpreted as a GW spectrum produced from First Order Phase Transitions (FOPTs) around a temperature in the KeV-MeV window. Such a class of FOPTs at temperatures much below the electroweak scale can be naturally envisaged in several Warm Dark Matter models such as Majoron Dark Matter.
description: More details and results on possible WDM-inspired GW spectra added, including more recent numerical tools in the subject. New references added. The main conclusions are substantially unchanged
Crystallization, microstructure and expansivity of spodumeneorthoclase glasses
Creators: name: Hamzawy, Esmat M. A.
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2004
Subjects: subject: 660

description: The crystallization behaviour was investigated for some glasses, within the system spodumene-orthoclase, during different heat treatments by DTA, XRD and SEM. Kaolin and quartz sand were used as starting materials for the glass preparation and melting. The base glasses were stable through the heat treatments and did not show any crystallization propensity, whereas TiO2 additions catalyze the crystallization tendency in the glasses. The crystallization process involved the formation of β-spodumene and leceite in addition to the metastable high quartz, which disappeared at higher temperatures (>900 °C). Translucent glass-ceramies, containing uniform and nonuniform microstructures, were obtained in the ease of domination of high quartz and β-spodumene, respectively. Little difference in the coefficient of thermal expansion (CTE) was noted in the base glasses (64 to 66 ∙ 10^-7 at 20 to 500 °C) and the TiOs doped glasses (60 to 69 ∙ 10^-7 K^-1 at 20 to 500 °C). Change in CTE in the TiOs doped glass ceramie samples from 37 to 69 ∙ 10^-7 at 20 to 300 °C depends mainly on the content of crystallized β-spodumene in addition to the residual glass. However, an increase in β-spodumene content in the crystallized glass-ceramies lowers the value of CTE and vice versa.
Crystallization and vicosity of phosphate melts in the system Na2O-CaO-MgO-P2O5-Al2O3-TiO2
Creators: name: Wange, Peter
name: Vogel, Jürgen
name: Knoche, Silke
name: Rüssel, Christian
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2004
Subjects: subject: 660

description: Glasses in the system Na2O-CaO-MgO-P2O5-Al2O3-TiO2 were studied with respeet to their crystallization and viscosity. Glasses in the metaphosphate range are composed of phosphate chains, and possess a comparably small tendeney to crystallization. Here, AlPO4 in a cristobalite-like modification and Ca2P2O7 are formed. Glasses in the intermediate range between metaphosphate and invert glass structures are composed of smaller phosphate units and show higher erystal growth velocities as well as higher viscosities. Additions of MgO, AI2O3 and TiO2 result in a strengthening of the glass network, and hence, inereasing viscosities and a notably smaller tendeney to crystallization.
Groebner deformations, connectedness and cohomological dimension
Creators: name: Varbaro, Matteo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: This paper is an outcome of the author's master thesis written under the supervision of Aldo Conca. We prove some results relating connectedness properties with (local) cohomological dimension. As an interesting corollary we have that every initial complex of a Cohen-Macaulay ideal is strongly connected.
description: 17 pages
Η ανάπτυξη της ικανότητας των παιδιών της πρώτης τάξης να κατανοούν και να παράγουν ιστορίες προφορικά και γραπτά: μια διδακτική παρέμβαση
Creators: name: Καρανταΐδου, Σταυρούλα Αντωνίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Αναδυόμενος γραμματισμός
Ιστορίες
Γεγονότα γραμματισμού
Διδακτική παρέμβαση
Μελέτη περίπτωσης
Ερευνα δράσης
Emergent literacy
Stories
Literacy events
Interrention
Case study
Action research

description: Η έννοια του αναδυόμενου γραμματισμού εστιάζει στο ρόλο που παίζουν κοινωνικοί, πολιτισμικοί και γλωσσικοί παράγοντες στις πρώιμες εμπειρίες γραμματισμού των παιδιών. Τα είδη των γεγονότων γραμματισμού στο πλαίσιο της οικογένειας και του σχολείου έχουν αναδειχθεί ως ιδιαίτερα σημαντικά πεδία προς διερεύνηση. Στο πλαίσιο αυτό, έχει καταδειχθεί ότι η ανάγνωση και διαπραγμάτευση ιστοριών αποτελεί εκείνο το γεγονός γραμματισμού, το οποίο συνδέεται τόσο με την πρώιμη ανάπτυξη του προφορικού λόγου όσο και με την ύστερη σχολική επιτυχία. Η παρούσα έρευνα αποτελεί μελέτη περίπτωσης που αφορά σε ένα συγκεκριμένο τμήμα μαθητών και μαθητριών της πρώτης τάξης του Δημοτικού σχολείου. Στο τμήμα αυτό πραγματοποιήθηκε διδακτική παρέμβαση που είχε ως στόχο την ανάπτυξη των ικανοτήτων των μαθητών και μαθητριών τόσο ως προς την κατανόηση όσο και ως προς τη γραπτή και προφορική ανάκληση ιστοριών. Τα αποτελέσματα της έρευνας έδειξαν ότι η βελτίωση που σημειώθηκε συνδέεται με την κοινωνική και πολιτισμική προέλευση των παιδιών. Επίσης αναδεικνύεται το είδος της αφηγηματικής γνώσης καθώς και οι στρατηγικές διαπραγμάτευσης που αναπτύχθηκαν κατά τη διάρκεια της παρέμβασης.
description: The concept of emergent literacy focuses on the role that social, culture and linguistic factors play in child's early literacy experience. The kinds of literacy events in family and school settings have emerged as extremely important fields for research. The reading and negotiation of stories is an identifiable literacy event which is linked with early spoken development and with later school success. The present research is a case study which refers to a class of first graders. An intervention took place in this class in order to promote students' ability to comprehend and recall stories in oral and written form. The results proved that the students' development is related to their social and cultural background. Also, the kind of narrative knowledge and the negotiation strategies which emerged during the intervention are presented.
Polarization of $Λ(1405)$ in the $γp \rightarrow K^+ πΣ$ reaction
Creators: name: Wang, Ke
name: Liu, Bo-Chao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper, we study the polarization of the $Λ(1405)$ in the $γp \rightarrow K^+ πΣ$ reaction within an effective Lagrangian approach and isobar model. In our model, the $Λ(1405)$ is excited through the t-channel $K/K^*$ exchanges and u-channel hyperon exchange. Compared to previous studies, we also include the contribution from a contact term, which is necessary for our model to interpret the polarization of the $Λ(1405)$. In addition, we also discuss the possibility to verify the proposed two-pole structure of the $Λ(1405)$ using the polarization data. We find that the polarization of the $Λ(1405)$ or the polarization of the final $Σ$ in this reaction is sensitive to the invariant mass $M_{πΣ}$. Thus the measurement of the dependence of the $Λ(1405)$ polarization on the $M_{πΣ}$ can offer valuable information about the pole structure of the $Λ(1405)$.
description: 8 pages, 7 figures. Version accepted by PLB
Asymptotics of the Spectral Gap for the Interchange Process on Large Hypercubes
Creators: name: Conomos, Matt
name: Starr, Shannon
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 82C22, 60K35

description: We consider the interchange process (IP) on the $d$-dimensional, discrete hypercube of side-length $n$. Specifically, we compare the spectral gap of the IP to the spectral gap of the random walk (RW) on the same graph. We prove that the two spectral gaps are asymptotically equivalent, in the limit $n \to \infty$. This result gives further supporting evidence for a conjecture of Aldous, that the spectral gap of the IP equals the spectral gap of the RW on all finite graphs. Our proof is based on an argument invented by Handjani and Jungreis, who proved Aldous's conjecture for all trees. This also has implications for the spectral gap of the quantum Heisenberg ferromagnet.
description: 17 pages. Updated proofs of inequalities, correcting errors
Particulate emissions in the flue gas of flat glass production after electrostatic precipitators
Creators: name: Kasper, Andreas
name: Carduck, Ernst
name: Manges, Monika
name: Stadelmann, Herbert
name: Klinkers, Jürgen
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2004
Subjects: subject: 660

description: As a contribution to the current discussion about fine dust and fine quartz and cristobalite particulate emissions and immissions, the authors point out the role the flat glass industry plays in this context. The main part of the raw material used in this industry is quartz sand (about 60 %), but the latter's granulometry is such that it contains practically no fine particles. This fact is inherent in undisturbed glass production because quartz sand particles with grain size below 80 μm would cause bad glass quality. Also other possible sources for silicon dioxide in the flue gas are discussed. In order to show the composition of the dust escaped to the electrostatic precipitators (EPs), the filters exclusively used in flat glass production, a number of quartz glass fiber filters used to measure the dust content in various plants were analyzed by X-ray diffraction and scanning electron microscopy. Only in one case a quartz or cristobalite grain was identified, but with 30 μm it was bigger than the respiratory fraction (< 10 μm) under discussion. In summary, it can be said that the findings are not at all alarming. In order to finally prove that there is no need to worry about emissions of carcinogenic dust for the whole glass industry future cooperative research will be necessary.
Impact of Magnetic Coupling and Density on STT-MRAM Performance
Creators: name: Wu, Lizhou
name: Rao, Siddharth
name: Taouil, Mottaqiallah
name: Marinissen, Erik Jan
name: Kar, Gouri Sankar
name: Hamdioui, Said
Publisher: name: arXiv
Year: 2020
Subjects: subject: Emerging Technologies (cs.ET)
subject: FOS: Computer and information sciences
subject: B.m

description: As a unique mechanism for MRAMs, magnetic coupling needs to be accounted for when designing memory arrays. This paper models both intra- and inter-cell magnetic coupling analytically for STT-MRAMs and investigates their impact on the write performance and retention of MTJ devices, which are the data-storing elements of STT-MRAMs. We present magnetic measurement data of MTJ devices with diameters ranging from 35nm to 175nm, which we use to calibrate our intra-cell magnetic coupling model. Subsequently, we extrapolate this model to study inter-cell magnetic coupling in memory arrays. We propose the inter-cell magnetic coupling factor Psi to indicate coupling strength. Our simulation results show that Psi=2% maximizes the array density under the constraint that the magnetic coupling has negligible impact on the device's performance. Higher array densities show significant variations in average switching time, especially at low switching voltages, caused by inter-cell magnetic coupling, and dependent on the data pattern in the cell's neighborhood. We also observe a marginal degradation of the data retention time under the influence of inter-cell magnetic coupling.
Predicting Autism Spectrum Disorder Using Machine Learning Classifiers
Creators: name: Chowdhury, Koushik
name: Iraj, Mir Ahmad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Autism Spectrum Disorder (ASD) is on the rise and constantly growing. Earlier identify of ASD with the best outcome will allow someone to be safe and healthy by proper nursing. Humans can hardly estimate the present condition and stage of ASD by measuring primary symptoms. Therefore, it is being necessary to develop a method that will provide the best outcome and measurement of ASD. This paper aims to show several measurements that implemented in several classifiers. Among them, Support Vector Machine (SVM) provides the best result and under SVM, there are also some kernels to perform. Among them, the Gaussian Radial Kernel gives the best result. The proposed classifier achieves 95% accuracy using the publicly available standard ASD dataset.
Η στάση των εκπαιδευτικών της πρωτοβάθμιας εκπαίδευσης της Κύπρου απέναντι στο μάθημα των θρησκευτικών
Creators: name: Τσιαλίδου, Αικατερίνη Σάββας
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Στάσεις
Πρωτοβάθμια εκπαίδευση
Εκπαιδευτικοί
Ερευνα
Μάθημα θρησκευτικών
Κύπρος
Attitudes
Primary education
Teacher
Research
Religion education
Cyprus

description: Η παρούσα έρευνα μελετά τις στάσεις των εκπαιδευτικών της Πρωτοβάθμιας Εκπαίδευσης της Κύπρου απέναντι στο μάθημα των Θρησκευτικών. Βιβλιογραφικά έχουν μελετηθεί οι διαστάσεις της έννοιας «στάση», ο ρόλος του δασκάλου στην ανάπτυξη στάσεων, καθώς και η διδασκαλία του μαθήματος των Θρησκευτικών στην Κύπρο. Το δείγμα αποτέλεσαν 382 δάσκαλοι που εργάζονται σε σχολεία της ελεύθερης Κύπρου και η ανάλυση έγινε με το στατιστικό πακέτο SPSS. Παρουσιάστηκε μια θετική στάση των εκπαιδευτικών της Κύπρου απέναντι στο μάθημα των Θρησκευτικών. Οι εκπαιδευτικοί στην πλειονότητα τους υποστηρίζουν τη χρησιμότητα του μαθήματος, την υποχρεωτική του μορφή και επιθυμούν να διδάσκουν το μάθημα. Αρνητικές στάσεις φαίνεται να αναπτύχθηκαν λόγω της γλώσσας των παλαιών βιβλίων και της διδασκαλίας που δέχθηκε ο κάθε εκπαιδευτικός στα παιδικά του χρόνια.
description: The present research studies the attitudes of Primary Education teachers in Cyprus toward Religion Education course. The dimensions of term "attitude", the role of the teacher in developing attitudes to children, as well as the teaching of course Religious in Cyprus have been studied bibliographically. 382 teachers who work in schools of Cyprus participated in the research and the data was analyzed with the statistical software "SPSS". The attitude of teachers toward Religion Education course was presented positive. The teachers in their majority support the usefulness of the course, its obligatory form and they wish to teach the course. Negative attitudes appear to develop because of the language of old books and the teaching each teacher received in childhood.
Computing in HEP for the HL-LHC
Creators: name: Watts, Gordon
Publisher: name: Zenodo
Year: 2021
Subjects: HL-LHC
IRIS-HEP
Physics
Particle Physics
Computing
CERN
LHC

description: The Large Hadron Collider will commence Run 4 in 2026, collecting over 100 times more data than was used to discover the Higgs. This unprecedented dataset, 3 ab-1, will enable precision measurements and searches for new physics and rare processes in ways not done before. To analyze this large dataset the field of particle physics will have to adopt new techniques. These include using big-data techniques from industry, pushing the frontiers of statistical modeling, and adapting machine learning techniques to physics problems. Several large collaborations have been built to organize this effort, including IRIS-HEP, by the NSF. This talk will explore the motivations and some of these techniques as well as how the field is trying to systematically attack the problem. Colloquia given at University of California, Santa Cruz
Microscopic Aspects of Multipole Properties of Filled Skutterudites
Creators: name: Hotta, Takashi
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We discuss low-temperature multipole states of Nd-based filled skutterudites by analyzing a multiorbital Anderson model with the use of a numerical renormalization group method. In order to determine the multipole state, we take a procedure to maximize the multipole susceptibility matrix. Then, it is found that the dominant multipole state is characterized by the mixture of 4u magnetic and 5u octupole moments. The secondary state is specified by 2u octupole. When we further take into account the coupling between $f$ electrons in degenerate $Γ_{67}^{-}$ ($e_{\rm u}$) orbitals and dynamical Jahn-Teller phonons with $E_{\rm g}$ symmetry, quadrupole fluctuations become significant at low temperatures in the mixed multipole state with 4u magnetic and 5u octupole moments. Finally, we briefly discuss possible relevance of the present results to actual Nd-based filled skutterudite compounds.
description: 6 pages, 3 figures. To appear in the Proceedings of the 17th International Conference on Magnetism (ICM2006)
Electromagnetic stirring of glass melts using Lorentz forces - Experimental results
Creators: name: Hülsenberg, Dagmar
name: Halbedel, Bernd
name: Conrad, Gerhard
name: Thess, André
name: Kolesnikov, Yuri
name: Lüdtke, Ulrich
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2004
Subjects: subject: 660

description: The question as to whether it is possible to stir glass melts using electromagnetic (Lorentz) forces has been controversially discussed in the past. Α series of accurate experiments is reported in which the buoyancy driven motion of a directly electrically heated glass melt in a cylindrical crucible has been modified by applying an external alternating magnetic field. Using temperature measurements directly in the melt it is demonstrated for the first time that the Lorentz force created in the melt leads to a homogenization of the temperature and density distributions because of an enhancement of the flow. Moreover, evidence is provided for an improvement of the glass homogeneity. The feasibility analysis provides rational possibilities for the application of magnetic fields for electromagnetic flow control in glassmaking processes.
Unsettling British Columbia : interventions in a neocolonial politics
Creators: name: Smith, Michael D.
Publisher: name: University of British Columbia
Year: 2009

description: The contemporary struggles by Aboriginal Nations within the boundaries of British Columbia for land and self-determination must be understood in relation to the historical geography, and political economy, of European colonialism and imperialism. The protracted and uneven process of European cap italist expansion overseas eventually led to the establishment of a British settler colony on the Pacific Coast of North America and the wholesale displacement of the region's indigenous populations. Once this regional history of white settler ascendancy is placed in its proper historical context, present day conflicts between Natives and settlers in Canada's westernmost province can be seen as local manifestations of an ongoing struggle by Aboriginal Nations around the world to challenge settler state power and a global system (the "New World Order") whose main features and dynamics remain largely imperialist. To illustrate this point, this thesis considers both the recent upsurge of settler opposition to Aboriginal land claims and treaty negotiations in British Columbia, and the militarization of state responses to Aboriginal protest exemplified by the Gustafsen Lake Standoff of 1995.
Influence of glass composition on high zirconia fused cast refractory corrosion
Creators: name: Sedláček, Jaroslav
name: Rebroš, Marián
name: Jamnický, Miroslav
name: Lokaj, Ján
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 2004
Subjects: subject: 660

description: Chemical composition and microstructure of individual phases of corroded high zirconia fused cast (HZFC) refractory have been examined in various places and distances from the interface with molten glass of different compositions. An unused HZFC block (ER 1195 RT) as well as blocks corroded by lead glass for lighting purpose, container white glass and Simax glass, respectively, have been investigated. Static crucible corrosion tests have been carried out at 1450 °C for 100 h. Samples of refractories were studied by means of scanning electron microscopy with energy dispersive X-ray spectroscopy and X-ray diffraction. The greatest changes were observed only in the glassy phase composition of individual corroded samples.