cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Via di fuga dai superflare delle nane rosse
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2021

Dall’analisi delle curve di luce di alcune nane rosse osservate con il Transiting Exoplanet Survey Satellite, un team di astronomi ha scoperto che i superflare tendono a verificarsi al di sopra di circa 55 gradi di latitudine: un risultato che ha rilevanti implicazioni per i modelli dei campi magnetici delle stelle e per l’abitabilità degli esopianeti che orbitano loro intorno. Tutti i dettagli su Mnras
Dasylepida Moser 1913
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Dasylepida

description: Dasylepida Moser, 1913a
[7 species and 1 additional subspecies].
Type species Lepidiota nana Sharp, 1876, by subsequent designation of Nomura (1977).
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 118, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
La Nasa cerca aspiranti marziani fra i 30 e i 55 anni
Creators: Ilaria Barricella
Publisher: name: Media Inaf
Year: 2021

Marte sbarca sulla Terra. E con lui anche Chapea, un programma di missioni simulate che avrà inizio nell’autunno 2022. Il Pianeta rosso sarà un modulo da 158 mq stampato in 3D con sede al Johnson Space Center della Nasa, a Houston. Sono aperte le candidature per diventare un marziano a tempo determinato
Perseidi, le stelle cadenti delle notti d’estate
Creators: Mauro Messerotti
Publisher: name: Media Inaf
Year: 2021

Il clou dello spettacolo sarà fra le nove e la mezzanotte di giovedì 12 agosto. Ma già in queste sere è possibile fare incetta di “lacrime di San Lorenzo” – in realtà detriti della coda della cometa Swift-Tuttle che, sfrecciando a oltre 200mila km/h nel cielo notturno, danno origine alle scie luminose. Non occorrono binocoli né telescopi, ma solo un cielo sufficientemente buio
Acqua liquida su Marte, il fronte del sì
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2021

Nell’ultimo mese e mezzo sono usciti su Geophysical Research Letters alcuni articoli che mettono in dubbio la presenza – suggerita nel 2018 su Science – di un lago d’acqua liquida nel sottosuolo di Marte. Come controbattono gli autori di quello studio? Lo abbiamo chiesto a due di loro, l’astrofisico dell’Inaf di Bologna Roberto Orosei e la geofisica dell’Università di Roma Tre Elena Pettinelli
A Universal Formula for the Stress-Tensor Contribution to Scalar Four-Point Functions
Creators: name: Giecold, Gregory
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We illustrate the power and efficiency of a recently uncovered Mellin-space approach to AdS/CFT correlation functions by providing a universal formula for the 4-scalar graviton-exchange Witten diagram, for arbitrary CFT-dual scaling dimensions. Our result keeps the space-time dimension generic as well, and is expressed as a combination of just 11 hypergeometric functions. Such hypergeometric functions are related to scalar-exchange diagrams. In particular, if reverse-engineered in terms of D-functions, this might be viewed as a first-step towards proving a long-standing conjecture by Dolan, Nirschl and Osborn pertaining to four-point correlators of chiral primary operators at strong coupling. Most importantly, the technology developed herein marks an additional development towards the long-anticipated computation of the four-point function of the N=4 sYM stress-tensor.
description: 17 pages, 1 figure. Zipped source file includes a Mathematica notebook
Un lago dai piedi d’argilla
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2021

La firma che il radar Marsis ha individuato nel sottosuolo di Marte non sarebbe quella dell’acqua liquida, come proposto da uno studio a guida italiana tre anni fa, bensì della smectite – un particolare tipo di argilla. Lo suggerisce uno studio pubblicato la settimana scorsa su Geophysical Research Letters
What kind of beautiful strangeness will it take? sustainable design, matter and pedagogical encounters
Creators: name: Korwin-Kossakowski, Lucille
Publisher: name: University of British Columbia
Year: 2013

description: Sustainability is not about achieving an end point, rather it is a way of knowing, feeling and being that embraces a different perception of the material world we live in. My thesis is an inquiry into the entangled relationship between design and matter with the hope of inspiring this dynamic understanding of sustainability. I consider how coming to know the material nature of design may help designers achieve a more intimate perception of matter, and alter not only the way we design, but also what we think design should be. Matter is the force that binds the human with the nonhuman, the relationship human’s share with the material world shapes our thoughts and ideas, and the fabricated world we live in today had its birthplace in human imagination. Of interest to me is the question: If design, as a practice, were to challenge the Western antimaterial habit of mind that burdens both human and nonhuman beings, what unimaginable and strange realms may open up when our imaginations are pushed beyond the limits of disciplinary thinking? The intention of my thesis is not to arrive at a single solution that will draw us out of the unsustainable reality that lurks beneath much of design, mass production and consumption. Instead this is the thoughtful journey of one designer longing to discover what new dialogue can be found between design and matter beyond the limited scope of our instrumental reasoning so that we may begin to see, feel and know the material world differently.
Spatial soundfield recording using multiple higher order microphones
Creators: name: Fan, Cheng
Publisher: name: The Australian National University
Year: 2015

description: Spatial soundfield recording draws significant interests in noise cancellation, source localisation and entertainment applications. It is a complex and challenging problem in acoustic signal processing implementations, due to large numbers of microphones required and its extreme precision demand for equipment synchronisation and sensor positioning. This project presents an experimental design of a 2D soundfield recording system using multiple higher order microphones with its auxiliary systems that synchronise multiple recording channels and automatically localise microphones. This system was tested with both nearfield and farfield recordings of a soundfield constructed by loudspeakers in a reverberant room. The verification results show that soundfield recordings had reproduction error less than 10%. It proves that by higher order coefficients translation and with sufficient support from peripheral technologies, spatial soundfield recording over large areas is able to be implemented on general audio equipments using ordinary microphones, amplifiers, audio interfaces and loudspeakers.
Dedalopterus Sabatinelli & Pontuale 1998
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Dedalopterus

description: Dedalopterus Sabatinelli & Pontuale, 1998b
[11 species].
Type species Cyphochilus signatus Moser, 1908, by original designation.
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 118, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Bella come il Sole: ecco Kappa 1 Ceti
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2021

Una nuova ricerca condotta dalla Nasa ci regala uno sguardo ravvicinato di una stella a soli 30 anni luce di distanza che si pensa assomigli al Sole da giovane. Lo studio ha permesso agli scienziati di comprendere meglio come potesse essere il Sole circa 4 miliardi di anni fa e come potrebbe aver modellato l'atmosfera del nostro pianeta e lo sviluppo della vita sulla Terra. Tutti i dettagli su ApJ
Engertia Dalle Torre 1912
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Engertia

description: Engertia Dalle Torre, 1912c
[2 species].
Replacement name for Phila Brenske, 1897, not Phila Motschoulsky, 1850.
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 118, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Classical codes for quantum broadcast channels
Creators: name: Savov, Ivan
name: Wilde, Mark M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present two approaches for transmitting classical information over quantum broadcast channels. The first technique is a quantum generalization of the superposition coding scheme for the classical broadcast channel. We use a quantum simultaneous nonunique decoder and obtain a proof of the rate region stated in [Yard et al., IEEE Trans. Inf. Theory 57 (10), 2011]. Our second result is a quantum generalization of the Marton coding scheme. The error analysis for the quantum Marton region makes use of ideas in our earlier work and an idea recently presented by Radhakrishnan et al. in arXiv:1410.3248. Both results exploit recent advances in quantum simultaneous decoding developed in the context of quantum interference channels.
description: v4: 20 pages, final version to appear in IEEE Transactions on Information Theory
Phosphinoamide ligands for the synthesis of early transition metal organometallic complexes
Creators: name: Halcovitch, Nathan Ross
Publisher: name: University of British Columbia
Year: 2013

description: Early transition metal hydrides are currently of great interest; they are intermediates in catalytic processes, and have demonstrated ability to activate small molecules. While these complexes are traditionally supported by cyclopentadienyl-type ancillary ligands, current efforts are focused on alternative architectures. In particular, chelating mixed-donor ancillary ligands are currently employed for the synthesis of metal hydride complexes. Bidentate phosphinoamide ligands ([ArNPiPr₂]¹- where Ar = 3,5-dimethylphenyl) were used herein for the synthesis of scandium, yttrium and zirconium organometallic complexes that were characterized using NMR spectroscopy and X-ray diffraction techniques. Mixed phosphinoamide-alkyl yttrium complexes were generated in solution as a mixture of products from reaction of ArNHPiPr₂ with Y(CH₂SiMe₃)₃(THF)₂. Using the same methodology, (ArNPiPr₂)₂Sc(CH₂SiMe₃)(THF) was prepared and reaction with H₂ or PhSiH₃ gave the ligand redistribution product (ArNPiPr₂)₃Sc(THF), along with insoluble materials. A ferrocene-linked diphosphinoamide ligand was developed ([fc(NPiPr₂)₂]²- where fc = 1,1′-ferrocenyl) and employed for the synthesis of a discandium dihydride complex which is bridged by both hydride and phosphinoamide ligands. Because of the insolubility of this discandium dihydride subsequent attempted reactions with CO, alkenes and alkynes were unsuccessful. Triphosphinoamide zirconium complexes (ArNPiPr₂)₃ZrX (X = Cl, Et, CH₂Ph, BH₄, PHPh) were prepared and proved to be poor precursors for the synthesis of a zirconium hydride complex. The ferrocene-linked diphosphinoamide ligand was used in the synthesis of zirconium organometallic complexes, fc(NPiPr₂)2ZrR₂ (R = Me, CH₂Ph, CH₂tBu, tBu). While these dialkyl zirconium complexes were unreactive with respect to H₂, they have been shown to undergo insertion of (2,6-dimethylphenyl)isocyanide to generate the expected iminoacyl complexes. The reactivity of the iminoacyl complexes has been examined and a thermally induced 1,2-hydrogen shift reaction was observed for the benzyl-substituted iminoacyl, to generate an amidoalkene complex; the kinetics of the transformation were studied and deuterium isotopic labelling experiments revealed a primary isotope effect for the migrating hydrogen. The electrochemical oxidation of ferrocene-linked diphosphinoamide scandium and zirconium complexes was examined using cyclic-voltammetry; irreversible oxidation of the ferrocenyl diphosphinoamide ligand in these complexes was observed.
Local cohomology properties of direct summands
Creators: name: Nunez-Betancourt, Luis
Publisher: name: arXiv
Year: 2011
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13D45

description: In this article, we prove that if $R\to S$ is a homomorphism of Noetherian rings that splits, then for every $i\geq 0$ and ideal $I\subset R$, $\Ass_R H^i_I(R)$ is finite when $\Ass_S H^i_{IS}(S)$ is finite. In addition, if $S$ is a Cohen-Macaulay ring that is finitely generated as an $R$-module, such that all the Bass numbers of $H^i_{IS}(S)$, as an $S$-module, are finite, then all the Bass numbers of $H^i_{I}(R)$, as an $R$-module, are finite. Moreover, we show these results for a larger class a functors introduced by Lyubeznik. As a consequence, we exhibit a Gorenstein $F$-regular UFD of positive characteristic that is not a direct summand, not even a pure subring, of any regular ring.
description: 8 pages. References updated. Minor changes
Betelgeuse raffreddata da una macchia stellare
Creators: Ilaria Barricella
Publisher: name: Media Inaf
Year: 2021

Un team internazionale di astrofisici fa luce sulle cause dell’oscuramento di Betelgeuse, che da ottobre 2019 a marzo 2020 ha registrato un’anomala diminuzione di luminosità. All’origine del fenomeno potrebbe esserci stata una grande macchia stellare, che avrebbe abbassato la temperatura dell'astro di 170 kelvin. Lo studio è pubblicato su Nature Communications
Gli occhi di Jiram sull’equatore di Ganimede
Creators: Ufficio stampa Inaf
Publisher: name: Media Inaf
Year: 2021

Lo strumento italiano Jiram a bordo della missione Juno ha osservato nell'infrarosso Ganimede, la luna principale di Giove, in particolare le regioni equatoriali del corpo celeste e il grande cratere Tashmetum
Position Reconstruction in a Dual Phase Xenon Scintillation Detector
Creators: name: Solovov, V. N.
name: Belov, V. A.
name: Akimov, D. Yu.
name: Araújo, H. M.
name: Barnes, E. J.
name: Burenkov, A. A.
name: Chepel, V.
name: Currie, A.
name: DeViveiros, L.
name: Edwards, B.
name: Ghag, C.
name: Hollingsworth, A.
name: Horn, M.
name: Kalmus, G. E.
name: Kobyakin, A. S.
name: Kovalenko, A. G.
name: Lebedenko, V. N.
name: Lindote, A.
name: Lopes, M. I.
name: Lüscher, R.
name: Majewski, P.
name: Murphy, A. St J.
name: Neves, F.
name: Paling, S. M.
name: da Cunha, J. Pinto
name: Preece, R.
name: Quenby, J. J.
name: Reichhart, L.
name: Scovell, P. R.
name: Silva, C.
name: Smith, N. J. T.
name: Smith, P. F.
name: Stekhanov, V. N.
name: Sumner, T. J.
name: Thorne, C.
name: Walker, R. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: We studied the application of statistical reconstruction algorithms, namely maximum likelihood and least squares methods, to the problem of event reconstruction in a dual phase liquid xenon detector. An iterative method was developed for in-situ reconstruction of the PMT light response functions from calibration data taken with an uncollimated gamma-ray source. Using the techniques described, the performance of the ZEPLIN-III dark matter detector was studied for 122 keV gamma-rays. For the inner part of the detector (R<100 mm), spatial resolutions of 13 mm and 1.6 mm FWHM were measured in the horizontal plane for primary and secondary scintillation, respectively. An energy resolution of 8.1% FWHM was achieved at that energy. The possibility of using this technique for improving performance and reducing cost of scintillation cameras for medical applications is currently under study.
description: 8 pages, 7 figures, in the Conference Record of IEEE NSS 2011, accepted for publication in IEEE Trans. on Nuc. Sci
title: Self-representation as performance art in women's art practice : Maya Deren's at land : a singlular performance of self
title: Self-representation as performance art : the abjection of self
titleType: AlternativeTitle
Creators: name: Meaney, Janet Anne
Publisher: name: The Australian National University
Year: 2011
Subjects: subject: NX456.5.P38 M43 2011
subject: Deren, Maya Criticism and interpretation
subject: Deren, Maya. videorecordingAt Land
subject: Performance art
subject: Video art
subject: Avant-garde (Aesthetics)
subject: Independent filmmakers BiographyUnited States
subject: Self perception

description: The presentation of the thesis comprises the Studio Practice component (66%), the culmination of which takes the form of an exhibition of 8 large-scale photographic portraits, 20 small photographs of selected performances and an LCD screen showing a compilation video. I will conduct a live performance on the opening day of 22 June 2011 at the School of Art Gallery, Australian National University. The exhibition extends to 3July 2011. The presentation also comprises the Dissertation component (33%). The Report documents the influence of artists, including Marina Abramovic, Bas Jan Ader, John Cage, Zhang Huan, Joan Jonas and William Pope L., and their correlation to my work. It also considers the overarching influence of Julia Kristeva's theories of the abject. The Studio Practice component while based in the Photography and New Media Arts workshop has examined the abjection of self in performance art through performing live, in gallery spaces and in the public domain using the photograph and video, to document the works. The Dissertation undertakes an analysis of the life and work of American avant-garde filmmaker Maya Deren that establishes her actions in her film At Land as performance art - provided by Candidate.
description: [v. 1]. Dissertation -- [v.2]. Exegesis: Self-representation as performance art : the abjection of self
Phila Brenske 1897
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Phila

description: Phila Brenske, 1897.
Type species Phila amboinae Brenske, 1897, by monotypy.
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 118, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Essays in innovation, technology diffusion and globalisation
Creators: name: Swan, Anthony
Publisher: name: The Australian National University
Year: 2012
Subjects: subject: HF1365.S93 2012
subject: Globalization Economic aspects
subject: International trade
subject: Technological innovations
subject: International economic relations

description: I explore the implications of an increasingly integrated world economy on production patterns, levels of innovation activity and technology diffusion, and welfare across countries in a series of three essays. First, I analyse the gains from openness to international trade and multinational production (MP) across countries in a general equilibrium framework where innovation activity and technology are endogenously determined. The gains from openness to trade and MP implied by the calibrated model are in general much larger than the gains previously reported in the literature, reflecting productivity gains from inward MP, additional profits to multinationals and their affiliates around the world from outward MP, and the benefits of specialisation across production and research activities. Second, I examine the role of international trade in spreading the benefits of technology embodied in machinery and equipment around the world and the contribution of different country characteristics that promote or inhibit these benefits. The results explain why the International Comparison Program's data on equipment prices tend not to fall with levels of development across countries. Third, I examine the empirical relevance of Rybczynski effects, skills biased technical change, and increased global production sharing in explaining Israel's adjustment to immigration of Russian Jews in the 1990s. My findings provide new evidence that all three mechanisms played an important role in Israel's adjustment. The conclusions of this thesis suggest that the gains from participating in a global economy are potentially large but depend in large part on the extent to which the benefits of technology are spread around the world, which in turn depends on geography and other country characteristics.
Additional file 1 of Enhanced tolerance to Phytophthora root and stem rot by over-expression of the plant antimicrobial peptide CaAMP1 gene in soybean
Creators: name: Niu, Lu
name: Zhong, Xiaofang
name: Zhang, Yuanyu
name: Yang, Jing
name: Xing, Guojie
name: Li, Haiyun
name: Liu, Dongbo
name: Ma, Rui
name: Dong, Yingshan
name: Yang, Xiangdong
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Plant Biology

description: Additional file 1. Supplementary Table 1
Effetto boomerang: così il gas rientra nelle galassie
Creators: Ilaria Barricella
Publisher: name: Media Inaf
Year: 2021

Un team di scienziati osserva il riaccrescimento di gas nella galassia a spirale Ngc 4921, fenomeno dovuto alla ricaduta di nubi di gas precedentemente espulse per effetto del ram pressure stripping. Il gas tornato in sede potrebbe essere “riciclato” per formare nuove stelle, incrementando così l’attività della galassia. La ricerca è in pubblicazione su The Astrophysical Journal
Eulepida Kolbe 1894
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Eulepida

description: Eulepida Kolbe, 1894
[24 species].
Type species Eulepida baumanni Kolbe, 1894, by subsequent designation of Dewailly (1950).
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 118, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Particle Dynamics on Snyder space
Creators: name: Lu, Lei
name: Stern, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We examine Hamiltonian formalism on Euclidean Snyder space. The latter corresponds to a lattice in the quantum theory. For any given dynamical system, it may not be possible to identify time with a real number parametrizing the evolution in the quantum theory. The alternative requires the introduction of a dynamical time operator. We obtain the dynamical time operator for the relativistic (nonrelativistic) particle, and use it to construct the generators of Poincaré (Galilei) group on Snyder space.
description: 22 pages
title: Dissertation : photography and our connection with our culture, history and identity exegesis
title: Exegesis : photographs and place
titleType: AlternativeTitle
Creators: name: Steele, James Robin
Publisher: name: The Australian National University
Year: 2014
Subjects: subject: Photography Philosophy
subject: Identity (Philosophical concept) in art
subject: Photography Social aspects

description: Photographs are used to reinforce arguments about our history, our culture, and our identity. With billions of photographs now available online, growing numbers of cameras capturing every moment, and people sharing the resulting images in an instant across the globe, what is the connection between even a single photograph and the basic truth of the reality it purports to represent? Focusing on geographic location, my research interest for my creative practice is in how photographs document and represent place. Place helps to define who we are. Place informs us about our past and about the foundations of our community and our culture. Photographs help to define place because they provide evidence for what is there, what was there, and what happened there. In my studio practice I explore the use of rephotography to highlight the differences in material form of place over time. The exhibition explores the place of the photograph in the modern world by comparing photographs taken in the past with those taken in the same places almost forty years later with a series of photographs taken in 1973 in and around Cronulla Street, south of Sydney, and rephotographs of the same scenes in 2011. They show sometimes subtle, sometimes clear, changes in our environment and behaviour that go unnoticed without photographic evidence. To better understand what the photographs in my exhibition are actually saying to us, and to explore what photographs from the past actually tell us, for my dissertation I examined a number of photographs from a more distant, nineteenth or early twentieth century past that proved to be ambiguous. On the basis of my research, I argue that the model of the nineteenth century photograph as an indexical truth, modulated by cultural interpretation, is more complex than is generally thought. Online access to substantially expanded resources through more sophisticated digital tools today shows clearly that the staged photographs should not be considered as 'false' simply because they are not documents of true events. They give us access to the way people then constructed their reality. This offers us useful information about the way they thought about themselves and their society. I also argue that online digital tools, the resources they allow us to access easily, and the opportunities provided by the internet to interact with each other change the rules significantly for Australian institutions of photographic history - galleries, libraries, archives and museums. These institutions are yet to realise the implications of these changed rules, and to embrace the opportunities provided by them to engage actively with individual researchers.
Dal crepuscolo all’alba dell’universo
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2021

Può l’oscurità del crepuscolo – i fotoni della radiazione cosmica di fondo – insieme alla luce dell’alba – la radiazione ultravioletta emessa dalle prime stelle che si accendono – svelare la storia della reionizzazione e dirci qualcosa sull’inflazione primordiale? Ne parliamo con Daniela Paoletti dell’Istituto nazionale di astrofisica, coautrice di due nuovi studi che cercano di rispondere a questa domanda
Piccolo e roccioso, a 35 anni luce da noi
Creators: Redazione Eso
Publisher: name: Media Inaf
Year: 2021

Si chiama L 98-59b, è il pianeta più interno del sistema L 98-59, e ha solo la metà della massa di Venere. Il team di scienziati – molti dei quali dell’Inaf – che, usando lo strumento Espresso installato al Vlt dell’Eso, ne ha misurato le caratteristiche ha inoltre scoperto, nello stesso sistema planetario, un quarto pianeta e trovato indizi dell’esistenza di un quinto – in una zona alla giusta distanza dalla stella affinché l’acqua possa rimanere liquida in superficie
A caccia di molecole rare nelle nursery stellari
Creators: Eleonora Ferroni
Publisher: name: Media Inaf
Year: 2021

La grande sensibilità del radiotelescopio Iram da 30 metri permette di rivelare emissioni molto deboli, come quella da molecole rare come HCNH+. Un gruppo di astronomi guidato dall'Inaf ha studiato nel dettaglio questa molecola (abbondante nell'atmosfera di Titano) e per la prima volta è stato chiarito che l'abbondanza di HCNH+ è diversa a seconda che si tratti di regioni di formazione stellare giovani (fredde) o evolute (calde). I dettagli su A&A
Paraquat poisoning in Sri Lanka
Creators: name: Gawarammana, Indika Bandara
Publisher: name: The Australian National University
Year: 2012
Subjects: subject: Paraquat Toxicology.
subject: Accidental poisoning Sri Lanka.
subject: Self-poisoning Sri Lanka.

description: Self poisoning is a major medical problem in Asia. Patients are treated at rural, ill equipped hospitals which are under staffed- both in terms of numbers and training. Paraquat, a popular herbicide that has become an integral part of agriculture has been the most lethal pesticide in Sri Lanka and many other parts of Asia due to its very high case fatality (>70%). Paraquat self poisoning posed many challenges to both physicians and researchers. The natural history had been described only in one small case series reported in the West. The mechanism of toxicity of paraquat poisoning and treatment methods available had not been comprehensively reviewed to prioritise and design new antidote trials. The best way to estimate prognosis was unclear as prior studies did not directly compare the various markers of prognosis and many tests proposed were not widely available. The most widely used treatment for paraquat poisoning is immunosuppression with cyclophosphamide, dexamethasone and methylprednisolone. This treatment had however not been shown to work in an adequately powered RCT. This thesis presents a comprehensive review of the literature on paraquat poisoning and data from a cohort of 605 patients. The natural history and evolution of paraquat self poisoning is described and dozens of clinical and biochemical markers of prognosis were evaluated to create a simple decision support tool to aid determination of prognosis. A double blind randomized controlled clinical trial demonstrated that immunosuppression was ineffective in reducing mortality. A phase I/II trial with intravenous salicylate highlighted that this is a promising new treatment that requires further evaluation in larger trials.
Quantum efficiency of technical metal photocathodes under laser irradiation of various wavelength
Creators: name: Pimpec, F. Le
name: Ardana-Lamas, F.
name: Hauri, C. P.
name: Milne, C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Quantum efficiency studies for various wavelength and various technical metal surfaces were carried out in a dedicated unbaked vacuum chamber. Copper, magnesium, aluminium and aluminium-lithium photocathodes were irradiated by two different high power, high repetition rate, laser systems. We have observed an emission of electrons for photon energy below the work function of the material. This is explained by multiple photon absorption at the photocathode. We have not observed any degradation of the QE for those materials, but an improvement when irradiating them over a long period of time. This is contrary to observations made in RF photoguns.
description: PSI technical note 29 pages, 2 tables and 20 figures - Augmented and corrected compare to version 1
È online la nuova “banca di parole” di Hubble
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2021

Si chiama Hubble Word Bank l’ultimo progetto di Esa/Hubble per sensibilizzare la cittadinanza alla comprensione dell’astronomia, attraverso splendide immagini del telescopio spaziale Hubble e definizioni semplici e chiare. Un dizionario astronomico multimediale nato come risorsa informativa e didattica rivolta a studenti, genitori, educatori, comunicatori e a un pubblico generico
A Comprehensive Analysis of Fermi Gamma-ray Burst Data: III. Energy-Dependent T90 Distributions of GBM GRBs and Instrumental Selection Effect on Duration Classification
Creators: name: Qin, Ying
name: Liang, En-Wei
name: Liang, Yun-Feng
name: Yi, Shuang-Xi
name: Lin, Lin
name: Zhang, Bin-Bin
name: Zhang, Jin
name: Lu, Hou-Jun
name: Lu, Rui-Jing
name: Lu, Lian-Zhong
name: Zhang, Bing
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The durations (T90) of 315 GRBs detected with Fermi/GBM (8-1000 keV) by 2011 September are calculated using the Bayesian Block method. We compare the T90 distributions between this sample and those derived from previous/current GRB missions. We show that the T90 distribution of this GRB sample is bimodal, with a statistical significance level being comparable to those derived from the BeppoSAX/GRBM sample and the Swift/BAT sample, but lower than that derived from the CGRO/BATSE sample. The short-to-long GRB number ratio is also much lower than that derived from the BATSE sample, i.e., 1:6.5 vs 1:3. We measure T90 in several bands, i.e., 8-15, 15-25, 25-50, 50-100, 100-350, and 350-1000 keV, to investigate the energy-dependence effect of the bimodal T90 distribution. It is found that the bimodal feature is well observed in the 50-100 and 100-350 keV bands, but is only marginally acceptable in the 25-50 keV and 350-1000 keV bands. The hypothesis of the bimodality is confidently rejected in the 8-15 and 15-25 keV bands. The T90 distributions in these bands are roughly consistent with those observed by missions with similar energy bands. The parameter T90 as a function of energy follows \bar T90 \propto E^{-0.20\pm 0.02} for long GRBs. Considering the erratic X-ray and optical flares, the duration of a burst would be even much longer for most GRBs. Our results, together with the observed extended emission of some short GRBs, indicate that the central engine activity time scale would be much longer than T90} for both long and short GRBs and the observed bimodal T90 distribution may be due to an instrumental selection effect.
description: 29 pages, 2 tables, 9 figures, accepted for publication in ApJ
Eulepidopsis Burgeon 1946
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Eulepidopsis

description: Eulepidopsis Burgeon, 1946b
[1 species].
Type species Eulepidopsis wilsoni Burgeon, 1946, by monotypy.
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 118, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Disorder, entropy and harmonic functions
Creators: name: Benjamini, Itai
name: Duminil-Copin, Hugo
name: Kozma, Gady
name: Yadin, Ariel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We study harmonic functions on random environments with particular emphasis on the case of the infinite cluster of supercritical percolation on $\mathbb{Z}^d$. We prove that the vector space of harmonic functions growing at most linearly is $(d+1)$-dimensional almost surely. Further, there are no nonconstant sublinear harmonic functions (thus implying the uniqueness of the corrector). A main ingredient of the proof is a quantitative, annealed version of the Avez entropy argument. This also provides bounds on the derivative of the heat kernel, simplifying and generalizing existing results. The argument applies to many different environments; even reversibility is not necessary.
description: Published at http://dx.doi.org/10.1214/14-AOP934 in the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Qui Perseverance raccoglie il suo primo campione
Creators: Claudia Mignone
Publisher: name: Media Inaf
Year: 2021

In questi giorni, il rover Perseverance della Nasa è impegnato nella raccolta di un campione di roccia marziana, il primo di una esclusiva collezione geologica che le future missioni di Mars Sample Return riporteranno sulla Terra per esami di laboratorio approfonditi. Ne parliamo con Marco Merusi del Niels Bohr Institute di Copenhagen, membro del team dello strumento Mastcam-Z a bordo del rover
Exopholis Motschulsky 1859
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Exopholis

description: Exopholis Motschulsky, 1859
[8 species].
Type species Exopholis birmannica Motschulsky, 1859, by monotypy.
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 118, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Ammonia recovery from municipal wastewater through a struvite formation-thermal decomposition cycle
Creators: name: Wilson, Connor Walter
Publisher: name: University of British Columbia
Year: 2014

description: Bench-scale batch experiments were performed to assess the potential for ammonia removal and recovery from municipal post-digestion waste streams via struvite (MgNH4PO4•6H2O) crystallization using thermally decomposed struvite as a source of magnesium and orthophosphate. To simulate this process, newberyite (MgHPO4•3H2O), a synthesized surrogate for thermally decomposed struvite, was added to various ammonia solutions including synthetic struvite crystallizer effluent and synthetic dewatering centrate. The main objective of this study was to develop the concept of the proposed technology through evaluation of the effects of chemical and physical factors on the rates and mechanisms of ammonia removal, orthophosphate solubilization, and overall newberyite-to-struvite conversion efficiency. A model was developed using PHREEQC software to simulate each batch experiment and to predict the solid and liquid phase compositions that would result from these systems attaining chemical equilibrium. Experimental and model-predicted results were employed for the delineation of near optimal conditions for efficient transformation of newberyite into struvite. Ammonia removal efficiencies as high as 87% were achieved while maintaining orthophosphate residuals as low as 10 mg/L PO4-P. Measurements of liquid phase compositions at reaction times approaching equilibrium compared well with that predicted by the model. Results suggested an optimum within a region of 1 to 3 hour reaction times, pH between 7 and 8, temperature between 10° and 25° C, and at a newberyite dose that provides a suspension Mg:N:P molar ratio of 1:1:1. Although the results of the present study illustrate the potential of this technology, it is recommended that further research be performed employing the newberyite-containing material produced by the pilot-scale struvite thermal decomposition reactor located at the University of British Columbia.
Hall instability of solar flux tubes
Creators: name: Pandey, B. P.
name: Wardle, Mark
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The magnetic network which consists of vertical flux tubes located in intergranular lanes is dominated by Hall drift in the photosphere-lower chromosphere region ($\lesssim 1 Mm$). In the internetwork regions, Hall drift dominates above $0.25 Mm$ in the photosphere and below $2.5 Mm$ in the chromosphere. Although Hall drift does not cause any dissipation in the ambient plasma, it can destabilise the flux tubes and magnetic elements in the presence of azimuthal shear flow. The physical mechanism of this instability is quite simple: the shear flow twists the radial magnetic field and generates azimuthal field; torsional oscillations of the azimuthal field in turn generates the radial field completing feedback loop. The maximum growth rate of Hall instability is proportional to the absolute value of the shear gradient and is dependent on the ambient diffusivity. The diffusivity also determines the most unstable wavelength which is smaller for weaker fields. We apply the result of local stability analysis to the network and internetwork magnetic elements and show that the maximum growth rate for kilogauss field occurs around $0.5 Mm$ and decreases with increasing altitude. However, for a $120 G$ field, the maximum growth rate remains almost constant in the entire photosphere-lower chromosphere except in a small region of lower photosphere. For shear flow gradient $\sim 0.01 s^{-1}$, the Hall growth time is 10 minute near the footpoint. Therefore, network fields are likely to be unstable in the photosphere, whereas internetwork fields could be unstable in the entire photosphere-chromosphere. Thus the Hall instability can play an important role in generating low frequency turbulence which can heat the chromosphere.
description: 8 page, 4 figures
Ghiaccio d’acqua all’ombra delle rocce lunari
Creators: Giuseppe Fiasconaro
Publisher: name: Media Inaf
Year: 2021

Secondo un recente studio condotto da due ricercatori del Jpl utilizzando modelli termofisici accoppiati a modelli di desorbimento, le ombre proiettate dai sassi e dai crateri lunari creano piccole zone abbastanza fredde da permettere l’accumulo di ghiaccio d'acqua su tutta la sua superficie anche durante il caldo giorno lunare. I risultati della ricerca, pubblicati ieri su Mnras, spiegherebbero ad esempio i cambiamenti nelle quantità d'acqua misurate durante il giorno sul suolo del nostro satellite naturale
Graviengertia Prokofiev 2016
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Graviengertia

description: Graviengertia Prokofiev, 2016a
[1 species].
Type species Graviengertia rhipilepis Prokofiev, 2016, by original designation.
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 118, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Sulle vie del kripton
Creators: Redazione Media Inaf
Publisher: name: Media Inaf
Year: 2021

Nei fumetti della Dc Comics è il pianeta che diede i natali a Superman. In natura è un elemento sintetizzato dalle stelle attraverso il cosiddetto “processo s”. Ora un team guidato da Moshe Tessler – e del quale fanno parte anche Sergio Cristallo, Marco Limongi e Lorenzo Roberti dell’Inaf – ha scoperto perché i modelli ne prevedessero una quantità inferiore a quella effettivamente osservata nell’universo
Un giorno nel sistema planetario Hr 8799
Creators: Eleonora Ferroni
Publisher: name: Media Inaf
Year: 2021

Sfruttando la potenza di un nuovo strumento montato sul secondo telescopio dell’Osservatorio Keck alle Hawaii, un gruppo di ricercatori ha calcolato che le velocità minime di rotazione dei pianeti ‘d’ ed ‘e’ del sistema Hr 8799 sono rispettivamente di 10,1 km/s e 15 km/s. Ciò si traduce in una lunghezza del giorno che potrebbe andare da 3 fino a 24 ore, a seconda delle inclinazioni assiali dei pianeti, ancora non determinate
Relaxation and Pre-thermalization in an Isolated Quantum System
Creators: name: Gring, Michael
name: Kuhnert, Maximilian
name: Langen, Tim
name: Kitagawa, Takuya
name: Rauer, Bernhard
name: Schreitl, Matthias
name: Mazets, Igor
name: Smith, David A.
name: Demler, Eugene
name: Schmiedmayer, Jörg
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Understanding relaxation processes is an important unsolved problem in many areas of physics. A key challenge in studying such non-equilibrium dynamics is the scarcity of experimental tools for characterizing their complex transient states. We employ measurements of full quantum mechanical probability distributions of matter-wave interference to study the relaxation dynamics of a coherently split one-dimensional Bose gas and obtain unprecedented information about the dynamical states of the system. Following an initial rapid evolution, the full distributions reveal the approach towards a thermal-like steady state characterized by an effective temperature that is independent from the initial equilibrium temperature of the system before the splitting process. We conjecture that this state can be described through a generalized Gibbs ensemble and associate it with pre-thermalization.
description: 6 pages, 4 figures
Ottenute coppie di materia e antimateria dalla luce
Creators: Valentina Guglielmo
Publisher: name: Media Inaf
Year: 2021

Grazie al regime energetico raggiunto dall’acceleratore Rhic negli Usa e al rivelatore Star installato in esso, i fisici sono riusciti a verificare sperimentalmente due fenomeni predetti dalla fisica teorica già negli anni ’30: la produzione di elettroni e positroni dallo scontro di fasci di fotoni e la deflessione della luce polarizzata in un campo magnetico nel vuoto, un fenomeno noto come birifrangenza
Holorhopaea Britton 1978
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Holorhopaea

description: Holorhopaea Britton, 1978
[1 species].
Type species Holorhopaea sagata Britton, 1978, by original designation.
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 118, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437