cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spectrally dispersed kernel phase interferometry with SCExAO/CHARIS: proof of concept and calibration strategies
Creators: name: Chaushev, Alexander
name: Sallum, Steph
name: Lozi, Julien
name: Martinache, Frantz
name: Chilcote, Jeffrey
name: Groff, Tyler
name: Guyon, Olivier
name: Kasdin, N. Jeremy
name: Norris, Barnaby
name: Skemer, Andy
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Kernel phase interferometry (KPI) is a data processing technique that allows for the detection of asymmetries (such as companions or disks) in high-Strehl images, close to and within the classical diffraction limit. We show that KPI can successfully be applied to hyperspectral image cubes generated from integral field spectrographs (IFSs). We demonstrate this technique of spectrally-dispersed kernel phase by recovering a known binary with the SCExAO/CHARIS IFS in high-resolution K-band mode. We also explore a spectral differential imaging (SDI) calibration strategy that takes advantage of the information available in images from multiple wavelength bins. Such calibrations have the potential to mitigate high-order, residual systematic kernel phase errors, which currently limit the achievable contrast of KPI. The SDI calibration presented here is applicable to searches for line emission or sharp absorption features, and is a promising avenue toward achieving photon-noise-limited kernel phase observations. The high angular resolution and spectral coverage provided by dispersed kernel phase offers novel opportunities for science observations which would have been challenging to achieve otherwise.
description: 18 pages, 12 figures, accepted for publication in JATIS
Vinci: il sistema dei luoghi e dei valori
Creators: name: Gisotti, Maria Rita
name: Spellucci, Simone
Publisher: name: Macramè
Year: 2008

description: The Vinci municipal territory lies between the course of the Arno and the Montalbano. It consists of a densely urbanized, flat area; a transitional, mainly agricultural area; and a hilly and highland area of remarkable landscape value. Projects developed in the workshop have confronted the reestablishment of territorial constitutive relationships in the North-South direction, on both urban and territorial scales.
description: Macramè, macramè 2–2008
The enchanter figure in the novels of Iris Murdoch
Creators: name: Woo, Elizabeth Annette
Publisher: name: University of British Columbia
Year: 2010

description: The novels of Iris Murdoch examined in this thesis fall into two categories, defined by herself as "open" and "closed." The "open" novels are "The Sandcastle," "The Nice and the Good," "An Unofficial Rose," "The Red and the Green," "The Bell and Under the Net". The "closed" novels are "The Italian Girl," "The Unicorn," "The Time of the Angels," "The Flight from the Enchanter", "A Severed Head," "Bruno's Dream" and "A Fairly Honourable Defeat". The terms "open" and "closed" are defined, as well as other terms important in the study of Iris Murdoch's novels, such as "journalistic" and "crystalline" novels, "ordinary language man," "totalitarian man," "enchantment," "fantasy," "form," "contingency," "myth," "love," "normal reality," and "symbolic reality." In each novel there is an enchanter who is a figure of power and an object of fantasy to other characters. This figure is described in terms of references to myths, fairy tales, fables, folklore, or philosophical concepts. The enchanter figure Is of two kinds, "ordinary," or "exotic," and is seen by the reader as existing on two levels of reality in the novels, the "normal" and the "symbolic." On the normal level, the enchanter figure is seen as a person in a set of circumstances. On the symbolic level, he or she is seen as an allegorical figure. The techniques Iris Murdoch employs in presenting this figure on both levels of reality are the chief concern of this thesis, although the enchanter figure's Importance in terms of the main themes of the novels are also discussed. These themes are primarily concerned with love as the highest good and as a process through which fantasy is overcome and a perception of reality is achieved. Through the enchanter figure, Iris Murdoch's ethical views, her literary skill, and the wide range of her sources of knowledge are revealed.
Sintering behavior of two roughened crystals just after contact
Creators: name: Farr, R. S.
name: Izzard, M. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider two spherical, roughened crystals with approximately isotropic surface free energy which are brought into contact and begin to sinter. We argue that the geometry immediately post-contact is two dimensional and Cartesian and can be approximated by the evolution of a slot-shaped cavity. On this basis, we construct travelling wave solutions for the crystal shape in the limits of bulk diffusion limited and surface diffusion limited kinetics. These solutions are then used to calculate novel scalings for the neck size as a function of time $t$ after contact: We predict that neck size is proportional to $t^{1/4}$ for the bulk diffusion limited case and (following a single pinch-off event) approximately proportional to $t^{1/3}$ for the surface diffusion limited case.
description: 7 pages, 8 figures
Cluster Analysis of Open Research Data and a Case for Replication Metadata
Creators: name: Trisovic, Ana
Publisher: name: arXiv
Year: 2023
Subjects: subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: Research data are often released upon journal publication to enable result verification and reproducibility. For that reason, research dissemination infrastructures typically support diverse datasets coming from numerous disciplines, from tabular data and program code to audio-visual files. Metadata, or data about data, is critical to making research outputs adequately documented and FAIR. Aiming to contribute to the discussions on the development of metadata for research outputs, I conducted an exploratory analysis to determine how research datasets cluster based on what researchers organically deposit together. I use the content of over 40,000 datasets from the Harvard Dataverse research data repository as my sample for the cluster analysis. I find that the majority of the clusters are formed by single-type datasets, while in the rest of the sample, no meaningful clusters can be identified. For the result interpretation, I use the metadata standard employed by DataCite, a leading organization for documenting a scholarly record, and map existing resource types to my results. About 65% of the sample can be described with a single-type metadata (such as Dataset, Software or Report), while the rest would require aggregate metadata types. Though DataCite supports an aggregate type such as a Collection, I argue that a significant number of datasets, in particular those containing both data and code files (about 20% of the sample) would be more accurately described as a Replication resource metadata type. Such resource type would be particularly useful in facilitating research reproducibility.
Due inediti rotoli pergamenacei. L'Ordine Teutonico e la sua organizzazione archivistica al principio del XIV secolo
Creators: name: Bombi, Barbara
Publisher: name: Scrineum Rivista
Year: 2013
Subjects: diplomatics; teutonic order; archives

description: After a brief overwiew on the archival history of the Teutonic Order in the thirteenth and early fourteenth century, the article focuses on the problem of conservation practices and record keeping that the Order adopted during the period of displacement and reorganization of its archives. Two parchment rolls are analyzed, both preserved in the Geheimes Staatsarchiv Preussischer Kulturbesitz in Berlin and containing headings of mostly papal documents issued in favor of the Order in the thirteenth century. The first roll was drawn up at the beginning of the fourteenth century on the documents preserved in the Roman church of Santa Maria in Domnica: the roll is one of the last witnesses of the size of the Roman archive of the Order before its dispersion. The second roll was commissioned in 1318 by the procurator generalis of the Order in the Avignon Curia and was compiled to affirm, first of all, the lawsuit of the Teutonic Knights on rights in Livonia against the archbishop of Riga. The authors of this second roll used, in all probability, compilations made by the will of procuratores of the Order at the Papal Curia ​​in the thirteenth century and based on registers of Papal Chancery.
description: Scrineum Rivista, 1 (2003)
Aganone vescovo e la scrittura carolina a Bergamo alla metà del IX secolo: dinamiche ed eredità di un'innovazione culturale
Creators: name: De Angelis, Gianmarco
Publisher: name: Scrineum Rivista
Year: 2013
Subjects: Bergamo; caroline minuscule; Aganone bischop

description: The long-lasting episcopate of Aganone (837-867), a learned Frankish bishop strictly connected to the imperial court and to some of the most important intellectual of his time, represented a real turning point in Bergamo's history during Early Middle Ages, both in political and social fields, and for a whole regarding cultural expressions. The paper aims at pointing out the connections between the process of the definitive strengthening of Carolingian power in town and the innovations verifiable in the local literacy, which since the very first times of Aganone is characterized by a sudden and uniform adherence to the Caroline minuscule canon, so overcoming the graphic particularism and the cursive writing tendencies of the previous period. The hypothesis that Aganone's and his entourage's installation in Bergamo coincided with the formation of a graphic 'school' (or, at least, with the strong affirmation of an unitary cultural trend) seems to be confirmed by the appearance, in the subscriptions, of notae tachigraphicae and other special chancellery signs, which from bishop's curia will spread later on also among notaries and other outstanding laymen, as a distinctive mark of urban élites.
description: Scrineum Rivista, 4 (2006-2007)
Notai e scrittura a Piacenza: a proposito di notizie dorsali e imbreviature
Creators: name: Mantegna, Cristina
Publisher: name: Scrineum Rivista
Year: 2013

description: The A. picks up the topic wich matters to the historiography of diplomatics in the last two centuries. She reads it again from the point of view of the XI-XII centuries records of Piacenza; they are good examples to reconstruct the events that drove to the achievement of the imbreviaturae case. Notaries in Piacenza were susceptible to the need of giving and warranting fides to the record and they drafted alternatives solutions: each of them is sign of a different phase of the process of definition of the notary’s public role in the medieval legal system.
description: Scrineum Rivista, 5 (2008)
Development of the critical exponent at the antiferromagnetic phase transition of YbRh2Si2 under chemical pressure
Creators: name: Krellner, C.
name: Klingner, C.
name: Geibel, C.
name: Steglich, F.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present specific-heat measurements in the vicinity of the antiferromagnetic phase transition on single crystals of the alloy Yb(Rh_{1-x}Co_x)2Si2 for x<= 0.38. This study was motivated by the violation of critical universality in the undoped YbRh2Si2 (Krellner et al., Phys. Rev. Lett. 102, 196402) where we have found a large critical exponent a=0.38. For Co-doped samples we observe a drastic change of the critical fluctuations resulting in a negative a, explainable within the universality classes of phase transitions. The development of a under chemical pressure gives strong indication that the violation of critical universality in YbRh2Si2 is due to the nearby quantum critical point.
description: Accepted for the QCNP proceedings 2009
L’insegnamento della Diplomatica nell'attuale assetto universitario
Creators: name: Ansani, Michele
Publisher: name: Scrineum Rivista
Year: 2013
Subjects: diplomatics teaching plans; italian universities

description: Are collected here data and information about geography and content of Diplomatics teachings in Italian universities (both in undergraduate and graduate courses), after the 2004 reform. In particular, are observed teaching plans of 'History' and 'Cultural Heritage' courses.
description: Scrineum Rivista, 6 (2009)
Effect of electron-doping on spin excitations of underdoped BaFe$_{1.96}$Ni$_{0.04}$As$_{2}$
Creators: name: Harriger, Leland W.
name: Schneidewind, Astrid
name: Li, Shiliang
name: Zhao, Jun
name: Li, Zhengcai
name: Lu, Wei
name: Dong, Xiaoli
name: Zhou, Fang
name: Zhao, Zhongxian
name: Hu, Jiangping
name: Dai, Pengcheng
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We use neutron scattering to study magnetic order and spin excitations in BaFe$_{1.96}$Ni$_{0.04}$As$_{2}$. On cooling, the system first changes the lattice symmetry from tetragonal to orthoromhbic near $\sim$97 K, and then orders antiferromagnetically at $T_N=91$ K before developing weak superconductivity below $\sim$15 K. Although superconductivity appears to co-exist with static antiferromagnetic order from transport and neutron diffraction measurement, inelastic neutron scattering experiments reveal that magnetic excitations do not respond to superconductivity. Instead, the effect of electron-doping is to reduce the c-axis exchange coupling in BaFe$_2$As$_2$ and induce quasi two-dimensional spin excitations. These results suggest that transition from three-dimensional spin waves to two-dimensional spin excitations by electron-doping is important for the separated structural/magnetic phase transitions and high-temperature superconductivity in iron arsenides.
description: 4 pages, 4 figures
A core set of bean genotypes established from phenotyping of a Snap Bean Panel
Creators: name: García-Fernández, Carmen
name: Jurado, María
name: Campa, Ana
name: Bitocchi, Elena
name: Papa, Roberto
name: Ferreira, Juan Jose
Publisher: name: Zenodo
Year: 2021
Subjects: snap bean, phenotyping, diversity, core collection,

description: This poster was presented in the BIC & NAPIA biennial meetings hosted virtually by the University of Saskatchewan, Canada (Nov 2-4, 2021) https://www.bic-napia.org/ Bean Improvement Cooperative (BIC) http://www.bic.uprm.edu/
Thomas rotation and Mocanu paradox -- not at all paradoxical
Creators: name: Silagadze, Z. K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Non-commutativity of the Einstein velocity addition, in case of non-collinear velocities, seemingly gives rise to a conflict with reciprocity principle. However, Thomas rotation comes at a rescue and the paradox is avoided. It is shown that such a resolution of the so called Mocanu paradox is completely natural from the point of view of basic premises of special relativity.
description: 6 pages, 3 figures, revtex4
Derek Mahon’s Homage to Pasolini
Creators: name: De Angelis, Irene
Publisher: name: Biblioteca di Studi di Filologia Moderna: Series, Journals and Workshop
Year: 2011

description: This essay aims to show that Derek Mahon's 'Roman Script' and the prefatory 'Ghosts' draw on rich veins of history, art and literature to bring out a number of meaningful connections. For example, the same self-indulgence that wrecked a family in Ibsen's 'Ghosts' seriously weakened the Roman Empire and undermined faith in the Roman Catholic Church. The cultural mediocrity that Mahon's mother fought so hopelessly prompts modern tourists to desecrate Keats's grave or great works of art with their cheap photography, just as it contributed to the creation of the deadly Fascist myth as well as to present-day consumerism, which produces so much ruin and refuse. Quotations from Shelley's 'Adonais' and 'Hellas' and from Keats's Odes reveal echoes of these poets in 'Roman Script'. In their fight for truth against falsity, Gramsci and Pasolini take their rightful place beside Shelley and above all Keats, whose portrait emerges from the concluding “re-make” of Metastasio
description: Studi irlandesi. A Journal of Irish Studies, No 1 (2011)
Crystal Nucleation in a Supercooled Liquid with Glassy Dynamics
Creators: name: Saika-Voivod, Ivan
name: Bowles, Richard K.
name: Poole, Peter H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In simulations of supercooled, high-density liquid silica we study a range of temperature T in which we find both crystal nucleation, as well as the characteristic dynamics of a glass forming liquid, including a breakdown of the Stokes-Einstein relation. We find that the liquid cannot be observed below a homogeneous nucleation limit (HNL) at which the liquid crystallizes faster than it can equilibrate. We show that the HNL would occur at lower T, and perhaps not at all, if the Stokes-Einstein relation were obeyed, and hence that glassy dynamics plays a central role in setting a crystallization limit on the liquid state in this case. We also explore the relation of the HNL to the Kauzmann temperature, and test for spinodal-like effects near the HNL.
description: 4 pages, 4 figures
Lineamenti di diplomatica generale
Creators: name: Nicolaj, Giovanna
Publisher: name: Scrineum Rivista
Year: 2013
Subjects: diplomatics; documentation history; documentary functions

description: What is 'Diplomatics' and what is its purpose? What are written records, and what are they for? The A. answers to these questions in this preparatory study of her recent handbook Lezioni di diplomatica generale (Roma 2007), suggesting a methodological reflection on 'Diplomatics' beginning from the definition of document and investigating its typical forms (whitin its own historical system of documents) and its several functions.
description: Scrineum Rivista, 1 (2003)
Improving the performance of bagging ensembles for data streams through mini-batching
Creators: name: Cassales, Guilherme
name: Gomes, Heitor
name: Bifet, Albert
name: Pfahringer, Bernhard
name: Senger, Hermes
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: Often, machine learning applications have to cope with dynamic environments where data are collected in the form of continuous data streams with potentially infinite length and transient behavior. Compared to traditional (batch) data mining, stream processing algorithms have additional requirements regarding computational resources and adaptability to data evolution. They must process instances incrementally because the data's continuous flow prohibits storing data for multiple passes. Ensemble learning achieved remarkable predictive performance in this scenario. Implemented as a set of (several) individual classifiers, ensembles are naturally amendable for task parallelism. However, the incremental learning and dynamic data structures used to capture the concept drift increase the cache misses and hinder the benefit of parallelism. This paper proposes a mini-batching strategy that can improve memory access locality and performance of several ensemble algorithms for stream mining in multi-core environments. With the aid of a formal framework, we demonstrate that mini-batching can significantly decrease the reuse distance (and the number of cache misses). Experiments on six different state-of-the-art ensemble algorithms applying four benchmark datasets with varied characteristics show speedups of up to 5X on 8-core processors. These benefits come at the expense of a small reduction in predictive performance.
The Complexity of Computing Minimal Unidirectional Covering Sets
Creators: name: Baumeister, Dorothea
name: Brandt, Felix
name: Fischer, Felix
name: Hoffmann, Jan
name: Rothe, Joerg
Publisher: name: arXiv
Year: 2009
Subjects: subject: Computational Complexity (cs.CC)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: Given a binary dominance relation on a set of alternatives, a common thread in the social sciences is to identify subsets of alternatives that satisfy certain notions of stability. Examples can be found in areas as diverse as voting theory, game theory, and argumentation theory. Brandt and Fischer [BF08] proved that it is NP-hard to decide whether an alternative is contained in some inclusion-minimal upward or downward covering set. For both problems, we raise this lower bound to the Theta_{2}^{p} level of the polynomial hierarchy and provide a Sigma_{2}^{p} upper bound. Relatedly, we show that a variety of other natural problems regarding minimal or minimum-size covering sets are hard or complete for either of NP, coNP, and Theta_{2}^{p}. An important consequence of our results is that neither minimal upward nor minimal downward covering sets (even when guaranteed to exist) can be computed in polynomial time unless P=NP. This sharply contrasts with Brandt and Fischer's result that minimal bidirectional covering sets (i.e., sets that are both minimal upward and minimal downward covering sets) are polynomial-time computable.
description: 27 pages, 7 figures
The Motion of Curling Rocks: Experimental Investigation and Semi-phenomenological Description
Creators: name: Jensen, E. T.
name: Shegelski, Mark R. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Physics (physics.class-ph)
subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: A large number of curling shots using a wide range of rotational and translational velocities on two different ice surfaces have been recorded and analyzed. The observed curling rock trajectories are described in terms of a semi-phenomenological model. The data are found to rule out `dry friction' models for the observed motion, and to support the idea that the curling rock rides upon a thin liquid film created at the ice surface (i.e. `wet friction'). Evidence is found to support the hypothesis that the frictional force acting upon each segment of the curling rock is directed opposite to the motion relative to this thin liquid film and not relative to the underlying fixed ice surface.
description: 12 pages, 8 figures
Carte processuali dell'archivio di Pomposa. Un 'dossier' della metà del XII secolo
Creators: name: Mezzetti, Corinna
Publisher: name: Scrineum Rivista
Year: 2013
Subjects: diplomatics; medieval law; monastery of Pomposa

description: Among the charters of Pomposa Abbey’s archive a legal deed dated to 12th century has been kept. It is a very important evidence of a judicial procedure deeply renewed by the return to the sources of Roman law. This memory, which collects arguments and their relative allegationes brought by the monks of Pomposa, was written during a controversy with Ferrara bishop flared up about the possession of some fields near the Po river. The acknowledgment of the hand of the notary who wrote the text made possible the reconstruction of a whole dossier of original documents and authenticated copies produced within the dispute. In the appendix of this contribution the critical edition of the same dossier will be published.
description: Scrineum Rivista, 2 (2004)
Solutions of the spatially-dependent mass Dirac equation with the spin and pseudo-spin symmetry for the Coulomb-like potential
Creators: name: Ikhdair, Sameer M.
name: Sever, Ramazan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the effect of spatially dependent mass function over the solution of the Dirac equation with the Coulomb potential in the (3+1)-dimensions for any arbitrary spin-orbit $κ$ state$.$ In the framework of the spin and pseudospin symmetry concept, the analytic bound state energy eigenvalues and the corresponding upper and lower two-component spinors of the two Dirac particles are obtained by means of the Nikiforov-Uvarov method, in closed form. This physical choice of the mass function leads to an exact analytical solution for the pseudospin part of the Dirac equation. The special cases $% κ=\pm 1$ ($l=\widetilde{l}=0,$ i.e., s-wave)$,$ the constant mass and the non-relativistic limits are briefly investigated.
description: 24 pages
Per una laicità senza aggettivi
Creators: name: Cives, Giacomo
Publisher: name: Studi sulla Formazione
Year: 2009

description: The Author talks about a very interesting argument today: the laity of State and the role of Church inside of this reality. How much Church does interfere on State’s affairs? We have to reflect on this situation.
description: Studi sulla Formazione, Anno XI, I-2008
Magnetotransport studies of the Sb square-net compound LaAgSb$_2$ under high pressure and rotating magnetic fields
Creators: name: Akiba, Kazuto
name: Umeshita, Nobuaki
name: Kobayashi, Tatsuo C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Square-net-layered materials have attracted attention as an extended research platform of Dirac fermions and of exotic magneto-transport phenomena. In this study, we investigated the magneto-transport properties of LaAgSb$_2$, which has Sb-square-net layers and shows charge density wave (CDW) transitions at ambient pressure. The application of pressure suppresses the CDWs, and above a pressure of 3.2 GPa, a disordered phase with no CDWs is realized. By utilizing a mechanical rotator combined with a high-pressure cell, we observed the angular dependence of the Shubnikov-de Haas (SdH) oscillation up to 3.5 GPa and confirmed the notable two-dimensional nature of the Fermi surface. In the disordered phase, we also observed a remarkable field-angular-dependent magnetoresistance (MR), which exhibited a "butterfly-like" polar pattern. To understand these results, we theoretically calculated the Fermi surface and conductivity tensor at the disordered phase. We showed that the SdH frequency and Hall coefficient calculated based on the present Fermi surface model agree well with the experiment. The transport properties in the disordered phase are mostly dominated by the anisotropic Dirac band, which has the highest conductivity owing to linear energy dispersions. We also proposed that momentum-dependent relaxation time plays an important role in the large transverse MR and negative longitudinal MR in the disordered phase, which is experimentally supported by the considerable violation of Kohler's scaling rule. Although quantitatively complete reproduction was not achieved, the calculation showed that the elemental features of the butterfly MR could be reasonably explained as the geometrical effect of the Fermi surface.
description: 12 pages, 9 figures
A periodic orbit formula for quantum reactions through transition states
Creators: name: Schubert, Roman
name: Waalkens, Holger
name: Goussev, Arseni
name: Wiggins, Stephen
Publisher: name: arXiv
Year: 2010
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Transition State Theory forms the basis of computing reaction rates in chemical and other systems. Recently it has been shown how transition state theory can rigorously be realized in phase space using an explicit algorithm. The quantization has been demonstrated to lead to an efficient procedure to compute cumulative reaction probabilities and the associated Gamov-Siegert resonances. In this letter these results are used to express the cumulative reaction probability as an absolutely convergent sum over periodic orbits contained in the transition state.
description: 4 pages, 3 figures
New Experimental Limit on Photon Hidden-Sector Paraphoton Mixing
Creators: name: Afanasev, A.
name: Baker, O. K.
name: Beard, K. B.
name: Biallas, G.
name: Boyce, J.
name: Minarni, M.
name: Ramdon, R.
name: Shinn, M.
name: Slocum, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We report on the first results of a search for optical-wavelength photons mixing with hypothetical hidden-sector paraphotons in the mass range between 10^-5 and 10^-2 electron volts for a mixing parameter greater than 10^-7. This was a generation-regeneration experiment using the "light shining through a wall" technique in which regenerated photons are searched for downstream of an optical barrier that separates it from an upstream generation region. The new limits presented here are approximately three times more sensitive to this mixing than the best previous measurement. The present results indicate no evidence for photon-paraphoton mixing for the range of parameters investigated.
description: 9 pages, 3 figures
Aerodynamic Optimisation and Stability Analysis of Solar-powered Unmanned Aerial Vehicle.pdf
Creators: name: Haider, Aun
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 401201
subject: Aerodynamics (excl. hypersonic aerodynamics)

description: Solar-powered unmanned aerial vehicles (UAVs) with long endurance can be utilised for area surveillance as the regenerative nature of solar energy makes such UAVs a terrestrial satellite with 24/7 endurance. This paper presents an aerodynamic optimisation scheme for UAVs through the selection of airfoils and wing planform during the preliminary design phase. Sizing of the tail and control surface based on historical trends for similar aircraft is also substantiated. Finally, detailed aerodynamic and stability analyses of the optimised configuration validate adequate flying and handling qualities of UAVs. The optimisation effort increased the endurance factor by 19.75 percent. This increase will conserve the energy required to overcome in-flight drag and surplus power that can be utilised by onboard equipment.
Double Well Potential: Perturbation Theory, Tunneling, WKB (beyond instantons)
Creators: name: Turbiner, Alexander V
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A simple approximate solution for the quantum-mechanical quartic oscillator $V= m^2 x^2+g x^4$ in the double-well regime $m^2<0$ at arbitrary $g \geq 0$ is presented. It is based on a combining of perturbation theory near true minima of the potential, semi-classical approximation at large distances and a description of tunneling under the barrier. It provides 9-10 significant digits in energies and gives for wavefunctions the relative deviation in real $x$-space less than $\lesssim 10^{-3}$.
description: 13 pages, invited talk at "Crossing the boundaries: Gauge dynamics at strong coupling (Shifmania)", Minneapolis, May 14-17, 2009
LegoDNN: Block-grained Scaling of Deep Neural Networks for Mobile Vision
Creators: name: Han, Rui
name: Zhang, Qinglong
name: Liu, Chi Harold
name: Wang, Guoren
name: Tang, Jian
name: Chen, Lydia Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Deep neural networks (DNNs) have become ubiquitous techniques in mobile and embedded systems for applications such as image/object recognition and classification. The trend of executing multiple DNNs simultaneously exacerbate the existing limitations of meeting stringent latency/accuracy requirements on resource constrained mobile devices. The prior art sheds light on exploring the accuracy-resource tradeoff by scaling the model sizes in accordance to resource dynamics. However, such model scaling approaches face to imminent challenges: (i) large space exploration of model sizes, and (ii) prohibitively long training time for different model combinations. In this paper, we present LegoDNN, a lightweight, block-grained scaling solution for running multi-DNN workloads in mobile vision systems. LegoDNN guarantees short model training times by only extracting and training a small number of common blocks (e.g. 5 in VGG and 8 in ResNet) in a DNN. At run-time, LegoDNN optimally combines the descendant models of these blocks to maximize accuracy under specific resources and latency constraints, while reducing switching overhead via smart block-level scaling of the DNN. We implement LegoDNN in TensorFlow Lite and extensively evaluate it against state-of-the-art techniques (FLOP scaling, knowledge distillation and model compression) using a set of 12 popular DNN models. Evaluation results show that LegoDNN provides 1,296x to 279,936x more options in model sizes without increasing training time, thus achieving as much as 31.74% improvement in inference accuracy and 71.07% reduction in scaling energy consumptions.
description: 13 pages, 15 figures
Spectroscopy of electron-induced fluorescence in organic liquid scintillators
Creators: name: Undagoitia, T. Marrodan
name: von Feilitzsch, F.
name: Oberauer, L.
name: Potzel, W.
name: Ulrich, A.
name: Winter, J.
name: Wurm, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Emission spectra of several organic liquid-scintillator mixtures which are relevant for the proposed LENA detector have been measured by exciting the medium with electrons of ~10keV. The results are compared with spectra resulting from ultraviolet light excitation. Good agreement between spectra measured by both methods has been found.
description: 6 pages, 7 figures
Complex symmetric partial isometries
Creators: name: Garcia, Stephan Ramon
name: Wogen, Warren R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 47B99

description: An operator $T \in B(\h)$ is complex symmetric if there exists a conjugate-linear, isometric involution $C:\h\to\h$ so that $T = CT^*C$. We provide a concrete description of all complex symmetric partial isometries. In particular, we prove that any partial isometry on a Hilbert space of dimension $\leq 4$ is complex symmetric.
description: 9 pages
Density matrix reconstruction from displaced photon number distributions
Creators: name: Kiukas, Jukka
name: Pellonpää, Juha-Pekka
name: Schultz, Jussi
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider state reconstruction from the measurement statistics of phase space observables generated by photon number states. The results are obtained by inverting certain infinite matrices. In particular, we obtain reconstruction formulas, each of which involves only a single phase space observable.
description: 19 pages
Concerning verification of the Nernst theorem for Casimir-Lifshitz free energy
Creators: name: Ellingsen, Simen A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: By regarding the Lifshitz expression for the Casimir free energy on the real frequency axis rather than the imaginary Matsubara frequencies as is customary, new light is shed on the ongoing debate regarding the thermodynamical consistency of this theory in combination with common permittivity models. It is argued that when permittivity is temperature independent over a temperature interval including zero temperature, a cavity made of causal material with continuous dispersion properties separated by vacuum cannot violate Nernst's theorem (the third law of thermodynamics). The purported violation of this theorem pertains to divergencies in the double limit in which frequency and temperature vanish simultaneously. While any model should abide by the laws of thermodynamics within its range of applicability, we emphasise that the Nernst heat theorem is a relevant criterion for choosing amongst candidate theories only when these theories are fully applicable at zero temperature and frequency.
description: 8 pages. Major changes throughout. Final version accepted for publication in Phys. Rev. E
The cosmological constant as a manifestation of the conformal anomaly?
Creators: name: Thomas, Evan C.
name: Urban, Federico R.
name: Zhitnitsky, Ariel R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose that the solution to the cosmological vacuum energy puzzle may come from the infrared sector of the effective theory of gravity, where the impact of the trace anomaly is of upmost relevance. We proceed by introducing two auxiliary fields, which are capable of describing a diversity of quantum states via specification of their macroscopic (IR) boundary conditions, in contrast to ultraviolet quantum effects. Our investigation aims at finding a realistic cosmological solution which interprets the observed cosmological constant as a well defined deficit in the zero point energy density of the Universe. The energy density arises from a phase transition, which alters the properties of the quantum ground state. We explicitly formulate low energy gravity as an effective field theory with a precise definition of the "point of normalization" as the point at which the "renormalized cosmological constant" is set to zero in the Minkowski vacuum, in which the Einstein equations are automatically satisfied as the Ricci tensor identically vanishes. With this definition the effective QFT of gravity has a predictive power. In particular, it must predict the evolution of the system in any nontrivial geometry, including the vacuum energy behaviour as a function of infrared, rather than ultraviolet, input parameters.
description: 15 pages - v2 with extended introduction to match published version
Additional file 1 of Infrared thermography for assessment of thoracic paravertebral block: a prospective observational study
Creators: name: Zhang, Shuang
name: Liu, Yong
name: Liu, Xiaohu
name: Liu, Tianzhu
name: Li, Pengcheng
name: Mei, Wei
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Mental Health

description: Additional file 1: Supplementary Table 1. ROC curve analysis for T4-T7 dermatome. Data are expressed as mean (95% confidence interval).
Future Study of Dense Superconducting Hydrides at High Pressure
Creators: name: Wang, Dong
name: Ding, Yang
name: Mao, Ho-Kwang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The discovery of a record high superconducting transition temperature (Tc) of 288 K in a pressurized hydride inspires new hope to realize ambient condition superconductivity. Here, we give a perspective on the theoretical and experimental studies of hydride superconductivity. Predictions based on the BCS-Eliashberg-Midgal theory with the aid of density functional theory have been playing a leading role in the research and guiding the experimental realizations. To date, about twenty hydrides experiments have been reported to exhibit high-Tc superconductivity and their Tc agree well with the predicted values. However, there are still some controversies existing between the predictions and experiments, such as no significant transition temperature broadening observed in the magnetic field, the experimental electron-phonon coupling beyond the Eliashberg-Midgal limit, and the energy dependence of density of states around the Fermi level. To investigate these controversies and the origin of the highest Tc in hydrides, key experiments are required to determine the structure, bonding, and vibrational properties associated with H atoms in these hydrides.
description: 24 pages, 3 figures, 2 tables
Evaluation of the response against powdery mildew and white mold in the snap bean panel
Creators: name: Campa, Ana
name: Sheikhahmadi Sayed Adib
name: Bitocchi, Elena
name: Papa, Roberto
name: Ferreira, Juan Jose
Publisher: name: Zenodo
Year: 2021
Subjects: snap bean, diversity, resistance, white mold, powdery mildew

description: This poster was presented in the BIC & NAPIA biennial meetings hosted virtually by the University of Saskatchewan, Canada (Nov 2-4, 2021) https://www.bic-napia.org/ Bean Improvement Cooperative (BIC) http://www.bic.uprm.edu
Competing interactions in arrested states of colloidal clays
Creators: name: Ruzicka, B.
name: Zulian, L.
name: Zaccarelli, E.
name: Angelini, R.
name: Sztucki, M.
name: Moussaid, A.
name: Ruocco, G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Using experiments, theory and simulations, we show that the arrested state observed in a colloidal clay at intermediate concentrations is stabilized by the screened Coulomb repulsion (Wigner glass). Dilution experiments allow us to distinguish this high-concentration disconnected state, which melts upon addition of water, from a low-concentration gel state, which does not melt. Theoretical modelling and simulations reproduce the measured Small Angle X-Ray Scattering static structure factors and confirm the long-range electrostatic nature of the arrested structure. These findings are attributed to the different timescales controlling the competing attractive and repulsive interactions.
description: Accepted for publication in Physical Review Letters
title: Metapneumovirus humano
title: La tendencia de un virus común
titleType: Subtitle
Creators: name: Canto Molina, Diana Iran
Publisher: name: Gio Canto Academic Press
Year: 2025
Subjects: subject: Metapneumovirus
subject: Metapneumovirus
subject: Metapneumovirus/genetics
subject: Metapneumovirus/enzymology

description: Metapneumovirus humano: La tendencia de un virus común, de Diana Iran Canto Molina, ofrece una mirada clara y accesible sobre uno de los virus respiratorios más comunes pero menos conocidos: el metapneumovirus humano (hMPV). Con un enfoque basado en evidencia científica y fuentes oficiales, la obra explica sus características, formas de transmisión, síntomas y medidas preventivas, especialmente en poblaciones vulnerables como niños, adultos mayores y personas inmunocomprometidas. En un contexto de creciente interés por la salud pública, este libro se convierte en una valiosa herramienta para comprender y actuar frente a enfermedades respiratorias estacionales sin caer en alarmismos.
Assisted Tunneling of a metastable state between barriers
Creators: name: Kälbermann, German
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The assisted tunneling of a metastable state between barriers is investigated analytically by means of a simplified one dimensional model. A time dependent perturbation changes the pole spectrum of the wave function introducing a larger decay constant. New insights about the decay of a metastable state are found. The scheme is exemplified for parameters corresponding to the nuclear process of $α$ decay.
description: Physical Review C (RC) in press
Reply to arXiv:0709.2619 "Comment on 'Scaling behavior of classical wave transport in mesoscopic media at the localization transition' [arXiv:cond-mat/0509381]"
Creators: name: Cheung, S. K.
name: Zhang, Z. Q.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We argue from both technical and physical points of view that the main result shown in the Comment [arXiv:0709.2619] by Cherrolet et al. [Phys. Rev. B 80, 037101 (2009)] as well as the authors' interpretations of the result are not sufficient to draw the conclusion that the scaling law at the mobility edge takes the form T \propto 1/L^2. On the other hand, we believe that the result shows some evidence of T \propto ln L/L^2 behavior found in S. K. Cheung and Z. Q. Zhang, Phys. Rev. B 72, 235102 (2005) [arXiv:cond-mat/0509381]. More calculations with even larger L's are necessary to give a more definitive answer to this question.
description: 7 pages, 1 figure
OLIY TA'LIM TALABALARIDA KREATIV FIKRLASH KO'NIKMALARINI RIVOJLANTIRISH
Creators: name: Xudaybergenova, Nawrızbiyke
Publisher: name: Zenodo
Year: 2025

description: Bu maqolada oliy ta’lim talabalarida kreativ fikrlash ko’nikmalarini shakllantirish, uning ijodkorlik qobiliyatlarini rivojlantirish o’zaro faol munosabatlarga tez kirisha olish va amaliy ta’lim jaroyonida uni o’rinli qo’llay olish ko’nikmalarini rivojlantirish haqida aytib o’tilgan. Bu jarayonda ular bilan bevosita ishlaydigan o’qituvchidagi kreativlik darajasining qanday bo’lishi kerakliligi ko’rsatib o’tilgan.
Tidy Transcriptomics for Single-cell RNA Sequencing Analyses
Creators: name: Mangiola, Stefano
name: Doyle, Maria
Publisher: name: Zenodo
Year: 2022
Subjects: Bioconductor
open source
tidyseurat
tidySingleCellExperiment
tidyverse
tidytranscriptomics
RNA sequencing data
bioinformatics

description: This is an introduction associated with "Tidy Transcriptomics for Single-cell RNA Sequencing Analyses" which was organised by the ISCB Academy. This tutorial shows how to perform analysis of single-cell RNA sequencing data following the tidy data paradigm. The tidy data paradigm provides a standard way to organise data values within a dataset, where each variable is a column, each observation is a row, and data is manipulated using an easy-to-understand vocabulary. Most importantly, the data structure remains consistent across manipulation and analysis functions. This can be achieved with the integration of packages present in the R CRAN and Bioconductor ecosystem, including tidyseurat, tidySingleCellExperiment and tidyverse. These packages are part of the tidytranscriptomics suite that introduces a tidy approach to RNA sequencing data representation and analysis. For more information see the tidy transcriptomics blog.
description: The complete materials are accessed in the ISCB Academy GitHub repository