cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
02 Exploring Play-based Pedagogy in Government Pre-primary Classrooms of Bangladesh
Creators: name: Rashid, Rafiath
name: Jahan, Syeda Nazneen
Publisher: name: Monash University
Year: 2021
Subjects: subject: 130102 Early Childhood Education (excl. Maori)
subject: FOS: Educational sciences

description: This study investigates classroom practices and teachers’ perception to implement play-based pedagogy in the pre-primary classrooms in Bangladesh. By applying a qualitative framework for data collection from six government pre-primary schools, and analysing those data, this paper critically examines the limitations exist in regard to implementation of play based pedagogy. It argues that implementation of play-based teaching and learning approach in the government pre-primary classrooms in Bangladesh has its own boundaries in terms of inadequate teachers professional development insufficient space for large number of students, and conservative use of play materials. Findings of the study indicates the focus of one-year pre-primary education mostly towards formal school readiness, hence emphasizes on classroom activities to develop children’s academic skills. It also shows less scope of child directed spontaneous play to foster those academic skills, and wide use of teacher directed structured play-based activities during classroom hours, often compromising free play hours. Finally, this paper signposts the ambiguous perception of teachers regarding play based pedagogy as teaching-learning method. Furthermore, considering the emphasis of learning through play by the Government of Bangladesh (NCTB, 2011), this equivocal perception of teachers about play based pedagogy may lead the generation backward to the traditional rote based teaching-learning method. Therefore, high attention should be paid for strengthening teachers’ professional development.
Preparazione di materiali fluorescenti basati su quantum-dot metallici e semiconduttivi dispersi in polimero
Creators: name: Longo, Angela
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2008

description: In questo lavoro viene mostrata una nuova tecnica di sintesi in-situ di quantum-dots, con proprietà di luminescenza, all’interno di una matrice polimerica
termoplastica. Questa proprietà è di grande interesse nell’industria delle materie plastiche per la fabbricazione di nuovi sensori luminescenti.
Quantum-dots d’oro (Au), di solfuro di cadmio (CdS) e di solfuro di zinco (ZnS) sono stati sintetizzati tramite la decomposizione termica di mercaptidi (cioè dodecyl-mercaptide d’oro, dodecyl-mercapitde di Cd e dodecyl-mercaptide di zinco) disciolti in un polimero termoplastico (polistirene amorfo) .
Gli spettri di luminescenza dei polimerici modificati con questi quantum-dots hanno mostrato un intenso picco di emissione ad energie diverse in dipendenza della
natura dei quantum-dots. La formazione dei quantum-dots di piccole dimensioni è determinata dalla natura altamente viscosa del mezzo di reazione che limita la fase di
crescita dei quantum-dots.
Inoltre, sono stati analizzati gli spettri di luminescenza di quantum-dots in lega Au-Ag. Tali sistemi sono stati generati all’interno della matrice polimerica mediante
la decomposizione contemporanea del mercaptide Au e di Ag.
La caratterizzazione ottica in termini di spettri di luminescenza ha mostrato un red del picco di emissione come funzione della concentrazione del mercaptide Ag.
Tale fenomeno è stato spiegato attraverso il modello Jellium.
In conclusione i nanocompositi sintetizzati potrebbero permettere la realizzazione di una nuova generazione di dispositivi ottici (sensori ottici, LED, ecc.,).
The development of children's understanding of illness
Creators: name: Kampman, Jacqueline Ida
Publisher: name: University of British Columbia
Year: 2010

description: This project addressed the issues of how children's understanding of illness and its underlying dimensions might change over development as a function of age, cognitive level, or experience with particular illnesses. Sixteen subjects at each of four age groups were recruited: kindergarten, grade 3, grade 7, and adults. The child groups were selected to correspond roughly to the preoperational, concrete operational, and beginning/basic formal operational levels of cognitive development. Firstly, subjects were asked to give verbal definitions and diagnoses for illness in general as well as for five specific illnesses (colds, chicken pox, allergies, diabetes, cancer) which were selected to vary on a hypothetical continuum of familiarity, visibility, severity, contagiousness, and the control one has over onset or healing. Secondly, subjects were asked to rate on a 7-point scale the dimensions of severity, susceptibility, control over onset and control over healing for illness in general, for the five specific illnesses, and for ill persons of four different age groups (infants, children, adults, elderly). In their descriptions of illness in general, it appears that subjects were more likely to focus on the ill person rather than illness itself; whereas, subjects were more likely to focus on an illness1 specific symptoms and its etiology in their descriptions of specific illnesses. Significant developmental trends were apparent even in definitions and diagnoses of those illnesses which are most familiar and have the most visible symptoms (ie. colds, chicken pox); however, within particular age groups, the level of sophistication in both definitions and diagnoses of specific illnesses was dependent on the familiarity/visibility of the particular illness under discussion. There were also age differences in subjects' ratings of the illness dimensions; these differences were most pronounced for severity and susceptibility. Interestingly, all subjects appear capable of significantly and accurately ranking specific illnesses on these four dimensions. With development, increasing differentiation was made between specific illnesses on the bases of these dimensions. As well, there were age differences in subjects' differentiation between different aged ill persons on the bases of these dimensions. These results suggest that young children are aware of and understand (albeit in a limited way) these four dimensions of illness before they are able to convey this information in their verbal descriptions of illness.
Real Option Based Appraisal of Environmental Investments – An Assessment of NOₓ Emission Control Techniques in Large Combustion Plants
Creators: name: Schiel, Carmen
Publisher: name: KIT Scientific Publishing
Year: 2019
Subjects: Realoption
Umweltschutzinvestition
Investitionsbewertung
Politikinstrument
real option
environmental investment
investment appraisal
policy instrument

description: Environmental investments, such as emission control measures hardly gain profit but are enforced by policy. Such investments can be expected to be delayed as much as legally feasible. Yet, if increasing expenditures for the same investment in the future are likely to occur, an advanced investment may be favorable. A cost calculation methodology for NOₓ control techniques and a real option based decision support model for investments not gaining economic profit is presented in the book.
Supersymmetric Higgs Bosons in Weak Boson Fusion
Creators: name: Hollik, W.
name: Plehn, T.
name: Rauch, M.
name: Rzehak, H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the complete supersymmetric next-to-leading order corrections to the production of a light Higgs boson in weak boson fusion. The size of the electroweak corrections is of similar order as the next-to-leading order corrections in the Standard Model. The supersymmetric QCD corrections turn out to be significantly smaller than their electroweak counterparts. These higher--order corrections are an important ingredient to a precision analysis of the (supersymmetric) Higgs sector at the LHC, either as a known correction factor or as a contribution to the theory error.
description: 5 pages, 2 figures
Phase analysis of the cosmic microwave background from an incomplete sky coverage
Creators: name: Chiang, Lung-Yih
name: Naselsky, Pavel D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Phases of the spherical harmonic analysis of full-sky cosmic microwave background (CMB) temperature data contain useful information complementary to the ubiquitous angular power spectrum. In this letter we present a new method of phase analysis on incomplete sky maps. It is based on Fourier phases of equal-latitude pixel rings of the map, which are related to the mean angle of the trigonometric moments from the full-sky phases. They have an advantage for probing regions of interest without tapping polluted Galactic plane area, and can localize non-Gaussian features and departure from statistical isotropy in the CMB.
description: 5 pages, 3 figures submitted to MNRAS Letters, replaced with minor changes
HESPRI Deliverable D1.1 Methodology WP1 - Challenges for Higher Education in the 21st century
Creators: name: Popa, Nicoleta Laura
Publisher: name: Zenodo
Year: 2023

description: HESPRI Deliverable D1.1 Methodology WP1 - Challenges for Higher Education in the 21st century includes the description of the research framework for conducting the review and the data collection for the comparative analysis of higher education systems.
Fusion Phage as a Bioselective Nanomaterial : Evolution of the Concept
Creators: name: Petrensko, Valery A.
name: Ustino, S. -N.
name: Chen, I-Hsuan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Multibillion-clone landscape phage display libraries were prepared by the fusion of the phage major coat protein pVIII with foreign random peptides. Phage particles and their proteins specific for cancer and bacterial cells were selected from the landscape libraries and exploited as molecular recognition interfaces in detection, gene- and drug-delivery systems. The biorecognition interfaces were obtained by incorporation of the cell-specific phage fusion proteins into liposomes using intrinsic structural duplicity of the proteins. As a paradigm, we incorporated targeted pVIII proteins into commercially available therapeutic liposomes "Doxil", which acquired a new emergent property-ability to bind target receptors. Targeting of the drug was evidenced by fluorescence-activated cell sorting, microarray, optical and electron microscopy. In contrast to a poorly controllable conjugation targeting, the new landscape phage-based approach relies on very powerful and extremely precise mechanisms of selection, biosynthesis and self assembly, in which phages themselves serve as a source of the final product.
description: Submitted on behalf of TIMA Editions (http://irevues.inist.fr/tima-editions)
Differential dynamic microscopy for the characterization of polymer systems
Creators: name: Cerbino, Roberto
name: Giavazzi, Fabio
name: Helgeson, Matthew E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: This review summarizes recent progress in investigating polymer systems by using Differential dynamic microscopy (DDM), a rapidly emerging approach that transforms a commercial microscope by combining real-space information with the powerful capabilities of conventional light scattering analysis. DDM analysis of a single microscope movie gives access to the sample dynamics in a wide range of scattering wave-vectors, enabling contemporary polymer science experiments that would be difficult or impossible with standard light scattering techniques. Examples of application include the characterization of polymer solutions and networks, of polymer based colloidal systems, of biopolymers, and of cellular motility in polymeric fluids. Further applications of DDM to a variety of polymer systems are suggested to be just behind the corner and it is thus likely that DDM will become a tool of choice of the modern experimental polymer scientists.
On the Aerodynamic Force of the Oscillating Airfoils
Creators: name: Marongiu, Claudio Maria
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2009

description: The measure of the aerodynamic force around an oscillating airfoil represents the object of many theoretical and experimental researches in the modern Aerodynamics. The classical near field methods, based on the solid surface integration of the pressure and shear stresses, and the far field methods, obtained through the integral balance of the momentum equations, are the main categories in which all the force calculation techniques are included. The far field methods offer several advantages with respect to the classical near field ones and represent a positive solution to several limitations observed in the applications. Currently, the use of far field methods in the numerical solutions is limited only to the steady flows. It does not exist a well assessed far field method for unsteady flow regimes. The present thesis concerns the development of a new measurement technique of the aerodynamic force by means of a far field approach. The method is based solely on the knowledge of the vorticity field. The role of the Lamb vector (i.e. the vortex force) in the determination of the aerodynamic force is clearly highlighted. Several numerical solutions around an airfoil in pitching conditions (from pre-stall to the dynamic stall) have been achieved in the flow transition regime. The method employed in the fluid dynamic computations is based on the Reynolds Averaged Navier Stokes (RANS) equations in an unsteady reference system. The results obtained in the thesis demonstrate the effectiveness of the present RANS method in the prediction of the dynamic stall characteristics. By means of the new far field method, the real possibility to measure the aerodynamic force also in case of unsteady flows has been demonstrated. In addition, useful qualitative and quantitative information for the aerodynamic design have been extracted through the unsteady breakdown of the force. This technique can be exploited also in the experimental applications, in which the measurement of the aerodynamic force without the knowledge of the pressure is particular critical.
Oligochlora grimaldii Engel 1997
Creators: name: Engel, Michael
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Halictidae
Oligochlora
Oligochlora grimaldii

description: Oligochlora grimaldii Engel Oligochlora grimaldii Engel, 1997: 98; Engel, 2001: 176. New material. ♀; KU-DR-020; amber from the Dominican Republic (specific mine unknown), Early Miocene (Burdigalian); Fossil Insect Collection, Division of Entomology, University of Kansas Natural History Museum, Lawrence, Kansas, USA. Tribe Caenohalictini Michener
description: Published as part of Engel, Michael, 2009, Two New Halictine Bees in Miocene Amber from the Dominican Republic (Hymenoptera, Halictidae), pp. 1-12 in ZooKeys 29 (29) on page 6, DOI: 10.3897/zookeys.29.257, http://zenodo.org/record/576571
description: {"references": ["Engel MS (1997) A new fossil bee from the Oligo-Miocene Dominican amber (Hymenoptera: Halictidae). Apidologie 28 (2): 97 - 102.", "Engel MS (2001) A monograph of the Baltic amber bees and evolution of the Apoidea (Hymenoptera). Bulletin of the American Museum of Natural History 259: 1 - 192."]}
Analysis of warping and shear stresses for ship structures -Theoretical developments and numerical applications
Creators: name: Piscopo, Vincenzo
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2009

description: La Tesi di Dottorato ha avuto come obiettivo lo studio delle attuali teorie e lo sviluppo di nuove formulazioni per l’ analisi delle tensioni indotte dalle sollecitazioni di taglio e torsione non uniforme nelle navi a grandi aperture. Nel primo caso sono state sviluppate due teorie in cui si considerano gli effetti della variabilità del taglio e della contrazione della sezione resistente. Per quanto attiene il secondo problema, è stata risolta l’equazione del warping considerando la variabilità del momento torcente d’onda; si è discusso di un approccio energetico per tener conto della presenza delle paratie trasversali, schematizzate come lastre ortotrope, la cui equazione costitutiva con i quattro bordi incastrati è stata risolta mediante tecniche di minimizzazione funzionale; si è, infine, estesa alle strutture navali una teoria innovativa che, a differenza di quella classica, consente il rispetto puntuale dell’ equazione indefinita dell’ equilibrio. La tesi è corredata di applicazioni numeriche, volte sia alla verifica delle teorie esposte, che all’ analisi specifica di strutture navali. Per quanto attiene gli obiettivi raggiunti, si è verificato che la forte variabilità della sollecitazione di taglio, presente nelle bulk-carrier se caricate a stive alterne, dà luogo ad un campo di warping, non considerato dalle attuali normative, particolarmente significativo. La contrazione della sezione resistente, inoltre, da un lato induce una redistribuzione delle tensioni tangenziali, rendendo tale campo più aderente a quello ricavato mediante analisi FEM, dall’ altro induce una leggera variazione della posizione verticale del centro di taglio. Per il problema della torsione non uniforme, si è verificato che la variabilità del momento torcente d’onda induce una redistribuzione del bimomento e dunque delle tensioni di warping. Infine, dall’ estensione alle strutture navali di una nuova formulazione teorica basata sullo sviluppo in serie del campo di spostamento, si è verificato che il campo di warping presenta delle cospicue concentrazioni di tensione in corrispondenza dei collegamenti fondo-ginocchio e fianco-ponte non considerate dalle tradizionali teorie.
Pali soggetti a carichi orizzontali: indagini sperimentali ed analisi
Creators: name: Landi, Gennaro
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2006

description: La Tesi è dedicata allo studio del comportamento dei pali di fondazione, singoli ed in gruppo, soggetti a carichi orizzontali statici.
Il lavoro è suddiviso in due parti.
La prima parte, che comprende i capitoli 1, 2 e 3, è dedicata ad un’analisi critica della letteratura sull’argomento. In primo luogo (capitolo 2) è stata raccolta e passata in rassegna l’evidenza sperimentale disponibile; quest’ultima è assai ricca, con indagini in vera grandezza e in scala ridotta, e consente di mettere in luce gli aspetti tipici della risposta dei pali singoli e in gruppo. Sono stati quindi studiati e posti a confronto fra loro i principali modelli di analisi disponibili per lo studio di tale problema, con particolare riguardo a quelli che modellano il terreno come un mezzo continuo. I numerosi ed interessanti studi parametrici condotti da diversi autori permettono di individuare le grandezze meccaniche e geometriche del sistema palo – terreno che più significativamente influenzano la risposta (capitolo 3).
La seconda parte della Tesi, che comprende i capitoli 4, 5 e 6, è dedicata allo sviluppo ed alla validazione di un codice di calcolo, in cui il terreno è modellato come un continuo elastico e si fa uso del metodo agli elementi di contorno. Il codice di calcolo, denominato NAPHOL (Non-linear Analysis of Piles under HOrizontal Load), consente di studiare il comportamento dei pali singoli e dei gruppi di pali soggetti a carichi orizzontali. Le ipotesi su cui è basato il modello, lo sviluppo del programma di calcolo ed un’estensiva serie di analisi parametriche condotte con lo stesso programma sono riportati nel capitolo 4. Il programma NAPHOL è stato quindi validato attraverso l’analisi a ritroso dei risultati di prove di carico orizzontale ben documentate in letteratura. A tal fine, nel capitolo 5 sono state prese in esame prove su pali singoli e nel capitolo 6 prove su gruppi di pali di varia geometria. La procedura di analisi utilizzata per eseguire le analisi a ritroso dei casi reali, ed in particolare la tecnica di determinazione dei parametri caratteristici del modello, vengono illustrate in dettaglio.
La linea alla ricerca dello spazio: i padiglioni espositivi della Serpentine Gallery
Creators: name: Procaccini, Valeria
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2006

description: Si dimostra come il rapporto linea/spazio e disegno/costruzione si è andato diversamente connotandosi quando, in campo scientifico la scoperta sulla relatività e sull’esistenza della Quarta Dimensione, ha condizionato la ricerca artistica. I padiglioni espositivi diventano emblema di questo mutato rapporto e di questa nuova condizione dell’arte e dell’architettura, in quanto spazi di arte, ma anche arte nello spazio.
Identification and characterization of glycoside hydrolases for biotechnological applications
Creators: name: Strazzulli, Andrea
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2010

description: The importance of carbohydrates in several biological processes is directly mirrored in a wide number of biotechnological applications, based mainly on glycoside hydrolases (GHs), including conversion of agricultural byproducts in fermentable sugars for the bioethanol production, the use of these biocatalysts in the formulation of laundry detergents and in food industry (e.g. hydrolysis of lactose and preparation of HFCS). Moreover, GHs are used also in several biomedical approaches, as the production of universal blood , the enzyme replacement therapy for the treatment of lysosomal storage diseases and as alterative to the chemical synthesis of therapeutic biomolecules as heparin and galactooligosaccharides.
The development of a new class of enzyme, the glycosynthases (GS), obtained by mutating glycoside hydrolases, represent reliable alternative for the chemo-enzymatic synthesis of oligosaccharides. Here, the key of this approach is to cancel the hydrolytic activity of the enzyme by site-directed mutagenesis, but maintaining intact the structure of the active site. Therefore, by using substrate donor and certain reaction conditions, the engineered enzymes are able to synthesize products in quantitative yield.
This thesis is directed to the identification and characterization of glycosyl hydrolase for biotechnological applications and was divided in two different parts. The first part (Chapters I and II) is aimed to the application of glycosidases in the oligosaccharides synthesis. In particular, I adressed my work to the study and characterization of the catalytic mechanism of a beta-galactosidase from the moderate thermophile Alicyclobacillus acidocaldarius (Aaβgal) for the development of a new β-galactosynthase (Chapter I). Moreover I have characterized a new alpha-galactosynthase from the hyperthermophile Thermotoga maritima (TmGalA D327G) (Chapter II) to validate the approach based on the use of beta-glycosyl azide donors recently proposed.
The second part of this thesis (Chapters III and IV) is dedicated to the characterization in detail of two new glycoside hydrolases: an alpha-glycosidase SSO1353 and an alpha-mannosidase (Ss-alpha-Man) both from the hyperthermophilic crenarchaeon Sulfolobus solfataricus.  The characterization of SSO1353 was directed to the study of the catalytic mechanism and in particular to the identification of nucleophile and acid/base residues. Differently, the study of Ss-alpha-Man activity was directed to the analysis of its substrate specificity toward glycoconjugates and glycoproteins.
La résonnance du glocal chez Raharimanana : cas de Revenir (2018)
Creators: name: Julie Ramilison
Publisher: name: Zenodo
Year: 2023

description: Cet article interroge l’identité sous le signe du glocal dans la littérature malgache contemporaine. En se basant sur Revenir de Raharimanana, écrivain-monde, ce travail s’intéresse à la Relation faisant ainsi résonner ce texte et la pensée de la Relation d’Edouard Glissant. En effet, l’auteur malgache met en évidence plusieurs formes de créolisation, un pilier de ladite pensée. Il en découle une écriture « hybride », née de la rencontre entre les peuples, de la rencontre entre les cultures et de la rencontre entre les langues. Dans cette œuvre, l’écrivain malgache ne met pas seulement en réseau des figures comme les traces, l’opacité, l’errance, le nomadisme, le métissage et la créolisation, mais actualise également le débat lié à la Mémoire. Par la Relation, l’écrivain malgache entend légitimer l’identité-monde et préconise une littérature « archipélique » et affranchie, qui inscrit son texte dans un réseau mondialisé.
Ramsey-like measurement of the decoherence rate between Zeeman sub-levels
Creators: name: Shuker, M.
name: Firstenberg, O.
name: Sagi, Y.
name: Ben-kish, A.
name: Davidson, N.
name: Ron, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Two-photon processes that involve different sub-levels of the ground state of an atom, are highly sensitive to depopulation and decoherence within the ground state. For example, the spectral width of electromagnetically induced transparency resonances in $Λ-$type system, are strongly affected by the ground state depopulation and decoherence rates. We present a direct measurement of decay rates between hyperfine and Zeeman sub-levels in the ground state of $^{87}$Rb vapor. Similar to the relaxation-in-the-dark technique, pumping lasers are used to pre-align the atomic vapor in a well defined quantum state. The free propagation of the atomic state is monitored using a Ramsey-like method. Coherence times in the range 1-10 ms were measured for room temperature atomic vapor. In the range of the experimental parameters used in this study, the dominant process inducing Zeeman decoherence is the spin-exchange collisions between rubidium atoms.
description: 7 pages, 7 figures
Phase-Field Modeling of Selective Laser Brazing of Diamond Grits
Creators: name: Li, Lu
name: Li, Shuai
name: Zhang, Bi
name: Fan, Tai-Hsi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Diamond grit is widely used in cutting, grinding, and polishing tools for its superior mechanical properties and performance in machining hard materials. Selective laser brazing (SLB) of diamond grits is a new additive manufacturing technique that has great potential to fabricate the next generation of high-performance diamond tools. However, fundamental understanding and quantitative analysis for the design and tuning of the SLB process and the resulting bonding efficiency are not yet established as the process is complicated by heating, fusion, wetting, solidification, grit migration, bonding, reaction, and the interplay between these effects. We present a thermodynamically consistent phase-field theoretical model for the prediction of melting and wetting of SLB on diamond grits using a powder-based additive manufacturing technique. The melting dynamics is driven by laser heating in a chamber filled with argon gas and is coupled with the motion of multiple three-phase contact lines. The relevant wetting dynamics, interfacial morphology, and temperature distribution are computationally resolved in a simplified 2D configuration.
description: 37 pages, 9 figures
Two-dimensional PIC simulations of ion-beam instabilities in Supernova-driven plasma flows
Creators: name: Dieckmann, M. E.
name: Meli, A.
name: Shukla, P. K.
name: Drury, L. O. C.
name: Mastichiadis, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Supernova remnant (SNR) blast shells can reach the flow speed $v_s = 0.1 c$ and shocks form at its front. Instabilities driven by shock-reflected ion beams heat the plasma in the foreshock, which may inject particles into diffusive acceleration. The ion beams can have the speed $v_b \approx v_s$. For $v_b \ll v_s$ the Buneman or upper-hybrid instabilities dominate, while for $v_b \gg v_s$ the filamentation and mixed modes grow faster. Here the relevant waves for $v_b \approx v_s$ are examined and how they interact nonlinearly with the particles. The collision of two plasma clouds at the speed $v_s$ is modelled with particle-in-cell (PIC) simulations, which convect with them magnetic fields oriented perpendicular to their flow velocity vector. One simulation models equally dense clouds and the other one uses a density ratio of 2. Both simulations show upper-hybrid waves that are planar over large spatial intervals and that accelerate electrons to $\sim$ 10 keV. The symmetric collision yields only short oscillatory wave pulses, while the asymmetric collision also produces large-scale electric fields, probably through a magnetic pressure gradient. The large-scale fields destroy the electron phase space holes and they accelerate the ions, which facilitates the formation of a precursor shock.
description: 15 pages, 11 figures, accepted for publication in Plasma Physics and Controlled Fusion
Nonlinear coherent destruction of tunneling
Creators: name: Luo, Xiaobing
name: Xie, Qiongtao
name: Wu, Biao
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study theoretically two coupled periodically-curved optical waveguides with Kerr nonlinearity. We find that the tunneling between the waveguides can be suppressed in a wide range of parameters due to nonlinearity. Such suppression of tunneling is different from the coherent destruction of tunneling in a linear medium, which occurs only at the isolated degeneracy point of the quasienergies. We call this novel suppression nonlinear coherent destruction of tunneling.
description: 4 pages,5 figures
Rater familiarity in simulation validity studies
Creators: name: McCormick, Carroll Owen
Publisher: name: University of British Columbia
Year: 2010

description: Previous research on photographic simulation validity is reviewed. Evidence supporting simulation validity is found, but methodological flaws seriously compromise the results of many of the studies. In the present study 408 University of British Columbia undergraduates rated the affective quality of two building interiors, using actual site, color slide, and written description media. Groups rating each site at each medium were equally represented by familiar and unfamiliar raters. The hypothesis that compensating efects of rater familiarity with stimulus sites produce results that are misinterpreted as supportive of simulation validity was tested. Results show that valid ratings of color slides were obtained, but results that appear supportive of simulation validity can be confounded with rater familiarity effects and building prototypicality.
DNA Nanorobotics
Creators: name: Hamdi, M.
name: Ferreira, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This paper presents a molecular mechanics study for new nanorobotic structures using molecular dynamics (MD) simulations coupled to virtual reality (VR) techniques. The operator can design and characterize through molecular dynamics simulation the behavior of bionanorobotic components and structures through 3-D visualization. The main novelty of the proposed simulations is based on the mechanical characterization of passive/active robotic devices based on double stranded DNA molecules. Their use as new DNA-based nanojoint and nanotweezer are simulated and results discussed.
description: Submitted on behalf of TIMA Editions (http://irevues.inist.fr/tima-editions)
Density Functional Theory for non-relativistic Fermions in the Unitarity Limit
Creators: name: Rupak, Gautam
name: Schaefer, Thomas
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We derive an energy density functional for non-relativistic spin one-half fermions in the limit of a divergent two-body scattering length. Using an epsilon expansion around d=4-epsilon spatial dimensions we compute the coefficient of the leading correction beyond the local density approximation (LDA). In the case of N fermionic atoms trapped in a harmonic potential this correction has the form E=E_(LDA)(1+c_s (3N)^(-2/3)), where E_(LDA) is the total energy in LDA approximation. At next-to-leading order in the epsilon expansion we find c_s=1.68, which is significantly larger than the result for non-interacting fermions, c_s=0.5.
description: 17 pages, final version, Nuclear Physics A, in press
Nesagapostemon Engel 2009, gen. n.
Creators: name: Engel, Michael
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Halictidae
Nesagapostemon

description: Nesagapostemon Engel, gen. n. urn:lsid:zoobank.org:act: CAFD1CF7-3C12-45CE-A3F8-CBC6F3E4C392
description: Published as part of Engel, Michael, 2009, Two New Halictine Bees in Miocene Amber from the Dominican Republic (Hymenoptera, Halictidae), pp. 1-12 in ZooKeys 29 (29) on page 6, DOI: 10.3897/zookeys.29.257, http://zenodo.org/record/576571
HESPRI Deliverable 2.1 Methodology WP2 - First set of indicators for Assessing Quality in Higher Education in the areas of Sustainability, Equity, and Digitalisation
Creators: name: Popa, Nicoleta Laura
Publisher: name: Zenodo
Year: 2023

description: HESPRI Deliverable 2.1 Methodology WP 2 describes the process of producing and refining assessment indicators for quality in higher education in three emerging domains: digitalisation, equity and sustainability.
The Plasma Emission Model of RX J1856.5-3754
Creators: name: Chkheidze, N.
name: Machabeli, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A spectral analysis of the nearby isolated neutron star RX J1856.5-3754 is presented. Applying the kinetic approach, the distribution functions of emitting electrons are derived and the entire spectra is fitted. It is found that waves excited by the cyclotron mechanism, come in the radio domain. We confirm that the cyclotron instability is quite efficient, since the estimations show that the time of wave-particle interaction is long enough for particles to acquire perpendicular momentum and generate observed radiation. The lack of rotational modulation is discussed and the pulsar spin period is estimated.
description: 5 pages, 4 figures
To study the effects of degradation of phonon distribution on the high frequency response in nano structures
Creators: name: Sarkar, S. -K.
name: Sarkar, Souvik
name: Sahu, P. K.
name: Kumar, K. -S.
name: Rani, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Under hot electron condition, the hot carriers phonon excited by ultra-short pulses in polar semiconductors initially loose energy rapidly by emitting longitudinal optic phonons via dominant Frolic coupling. Thus, energy supplied to the carriers by high electric fields goes into phonon generation. As the phonon life time is long enough, phonon distribution is disturbed and a non equilibrium population of LO phonons or hot phonons are produced, leading to their re-absorption by the carriers. In the present work the high frequency performance of GaN nanostructures is studied in the framework of heated drifted Fermi-Dirac distribution function incorporating the relevant scattering mechanisms and the influence of non-equilibrium LO phonons. It is observed that degradation of phonon distribution enhances significantly 3-dB cut off frequency thereby makes the high frequency response flatter reflecting that high frequency response is better if effects of non-equilibrium phonon distributions are included in the calculations.
description: Submitted on behalf of TIMA Editions (http://irevues.inist.fr/tima-editions)
A Review on Explainability in Multimodal Deep Neural Nets
Creators: name: Joshi, Gargi
name: Walambe, Rahee
name: Kotecha, Ketan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Artificial Intelligence techniques powered by deep neural nets have achieved much success in several application domains, most significantly and notably in the Computer Vision applications and Natural Language Processing tasks. Surpassing human-level performance propelled the research in the applications where different modalities amongst language, vision, sensory, text play an important role in accurate predictions and identification. Several multimodal fusion methods employing deep learning models are proposed in the literature. Despite their outstanding performance, the complex, opaque and black-box nature of the deep neural nets limits their social acceptance and usability. This has given rise to the quest for model interpretability and explainability, more so in the complex tasks involving multimodal AI methods. This paper extensively reviews the present literature to present a comprehensive survey and commentary on the explainability in multimodal deep neural nets, especially for the vision and language tasks. Several topics on multimodal AI and its applications for generic domains have been covered in this paper, including the significance, datasets, fundamental building blocks of the methods and techniques, challenges, applications, and future trends in this domain
description: 24 pages 6 figures
Electron Beam Lithography patterning of superconducting and magnetic nanostructures for novel optical and spintronic devices
Creators: name: Pagliarulo, Vito
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2010

description: In this thesis novel, high-end superconducting and spintronic devices  have been fabricated and characterized. In summary, the proposed work has been focused on the realization of nanowires, and more generally nanostructures, using the Electron Beam Lithography. Such a technology offers a powerful solution for nanofabrication able to conjugate spatial resolution, operation flexibility, and costs.
Two main research fields has been explored: superconductive nanowires for advanced optical detection and nanostructures for magneto-resistance based devices.
Functional inequalities for heavy tails distributions and application to isoperimetry
Creators: name: Cattiaux, Patrick
name: Gozlan, Nathael
name: Guillin, Arnaud
name: Roberto, Cyril
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: This paper is devoted to the study of probability measures with heavy tails. Using the Lyapunov function approach we prove that such measures satisfy different kind of functional inequalities such as weak Poincaré and weak Cheeger, weighted Poincaré and weighted Cheeger inequalities and their dual forms. Proofs are short and we cover very large situations. For product measures on $\R^n$ we obtain the optimal dimension dependence using the mass transportation method. Then we derive (optimal) isoperimetric inequalities. Finally we deal with spherically symmetric measures. We recover and improve many previous results.
Axisymmetric evolution of Einstein equations and mass conservation
Creators: name: Dain, Sergio
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: For axisymmetric evolution of isolated systems, we prove that there exists a gauge such that the total mass can be written as a positive definite integral on the spacelike hypersurfaces of the foliation and the integral is constant along the evolution. The conserved mass integral controls the square of the extrinsic curvature and the square of first derivatives of the intrinsic metric. We also discuss applications of this result for the global existence problem in axial symmetry.
description: A mistake in the proof of Lemma 5.1 is corrected. This version includes the Corrigendum that appears in Class. Quantum Grav. 26 (2009) 129801
Dados Abertos Governamentais no contexto de Políticas Públicas de Saúde e Sistemas Prisionais: Realidade ou Utopia?
Creators: name: Cardoso, Rafael Antônio Lima
name: Carneiro, Glauco de Figueiredo
name: de Menezes, José Euclimar Xavier
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences
subject: K.4.2

description: There are many initiatives of transparency reported in the access and use of government open data for different purposes. This practice reveals an important requirement to accomplish the participatory governance. The literature has reported a minimal set of criteria to categorize a specific data repository as open. This paper discusses to which extent specific national and international data repositories address these criteria. The analyzed repositories focus on public health and prison systems. The results show different levels of alignment to the criteria and provide evidence that the adoption of government open data practices are a reality. On the other hand, there is still a long way to achieve full alignment to the stated criteria.
description: in Portuguese
The meaning of diabetes : children's perspectives
Creators: name: Leach, Deborah Ann
Publisher: name: University of British Columbia
Year: 2010

description: This exploratory study was aimed at uncovering diabetic children's beliefs and ideas about diabetes mellitus. Children aged 8 to 12 years were observed at summer camp where they participated in various role playing activities designed to make their beliefs about diabetes explicit. Twelve children were later interviewed at home using a modification of Piaget's clinical method. Analysis of these data was focussed on how children explain diabetes from a phenomenological perspective, and how children interpret medical knowledge about diabetes. The study indicated that children have a good understanding of certain biomedical concepts and illustrated the importance of eliciting the child's explanatory model before introducing clinical explanations. Concepts and principles that were abstract or not discussed with children were poorly assimilated, indicating the need to question them periodically and help them to understand more complex ideas. The explication of children's personal perspectives confirmed previous research indicating the need to consider their feelings about being different and the constraints attached to having diabetes.
A coarse graining for the Fortuin-Kasteleyn measure in random media
Creators: name: Wouts, Marc
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 60K35,82B44,82B28

description: By means of a multi-scale analysis we describe the typical geometrical structure of the clusters under the FK measure in random media. Our result holds in any dimension greater or equal to 2 provided that slab percolation occurs under the averaged measure, which should be the case in the whole supercritical phase. This work extends the one of Pisztora and provides an essential tool for the analysis of the supercritical regime in disordered FK models and in the corresponding disordered Ising and Potts models.
description: 55 pages, 6 figures
Warm inflation in the DGP brane-world model
Creators: name: del Campo, Sergio
name: Herrera, Ramon
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Warm inflationary universe models on a warped Dvali-Gabadadze-Porrati brane are studied. General conditions required for these models to be realizable are derived and discussed. By using an effective exponential potential we develop models for constant and variable dissipation coefficient ratio $r=\fracΓ{3 H}$. We use recent astronomical observations for constraining the parameters appearing in our models.
description: 15 pages and 1 figure. Accepted for publication in Phys. Lett. B
A note on state space representations of locally stationary wavelet time series
Creators: name: Triantafyllopoulos, K.
name: Nason, G. P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Methodology (stat.ME)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: In this note we show that the locally stationary wavelet process can be decomposed into a sum of signals, each of which following a moving average process with time-varying parameters. We then show that such moving average processes are equivalent to state space models with stochastic design components. Using a simple simulation step, we propose a heuristic method of estimating the above state space models and then we apply the methodology to foreign exchange rates data.
description: 8 pages, 3 figures
Convergence and Stability of the Inverse Scattering Series for Diffuse Waves
Creators: name: Moskow, Shari
name: Schotland, John C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We analyze the inverse scattering series for diffuse waves in random media. In previous work the inverse series was used to develop fast, direct image reconstruction algorithms in optical tomography. Here we characterize the convergence, stability and approximation error of the series
Production and application of metal-based nanoparticles
Creators: name: Vasilieva, E. S.
name: Tolochko, O. V.
name: Yudin, V. E.
name: Kim, D.
name: Lee, D. -W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A number of metal-based nanopowders such kinds as Fe, Co, Fe/Co alloy, Fe/C, Fe/organic shell were successfully produced by aerosol synthesis method. The mechanism of nanoparticles formation and the influence of experimental parameters on shape, size distribution, structure, chemical and phase composition of oxide-, carbon-, or organic- coated nanoparticles were evaluated. The sizes of particles can be varied from 6-100 nm with narrow size distribution. The several application fields of synthesized nanoparticles have been studied.
description: Submitted on behalf of TIMA Editions (http://irevues.inist.fr/tima-editions)
Steep-Spectrum Radio Emission from the Low-Mass Active Galactic Nucleus GH 10
Creators: name: Wrobel, J. M.
name: Greene, J. E.
name: Ho, L. C.
name: Ulvestad, J. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: GH 10 is a broad-lined active galactic nucleus (AGN) energized by a black hole of mass 800,000 Solar masses. It was the only object detected by Greene et al. in their Very Large Array (VLA) survey of 19 low-mass AGNs discovered by Greene & Ho. New VLA imaging at 1.4, 4.9, and 8.5 GHz reveals that GH 10's emission has an extent of less than 320 pc, has an optically-thin synchrotron spectrum with a spectral index -0.76+/-0.05, is less than 11 percent linearly polarized, and is steady - although poorly sampled - on timescales of weeks and years. Circumnuclear star formation cannot dominate the radio emission, because the high inferred star formation rate, 18 Solar masses per year, is inconsistent with the rate of less than 2 Solar masses per year derived from narrow Halpha and [OII] 3727 emission. Instead, the radio emission must be mainly energized by the low-mass black hole. GH 10's radio properties match those of the steep-spectrum cores of Palomar Seyfert galaxies, suggesting that, like those Seyferts, the emission is outflow-driven. Because GH 10 is radiating close to its Eddington limit, it may be a local analog of the starting conditions, or seeds, for supermassive black holes. Future imaging of GH 10 at higher resolution thus offers an opportunity to study the relative roles of radiative versus kinetic feedback during black-hole growth.
description: 7 pages; 2 figures; emulateapj; to appear in ApJ