cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Evolution of transverse flow and effective temperatures in the parton phase from a multi-phase transport model
Creators: name: Lin, Zi-Wei
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I study the space-time evolution of transverse flow and effective temperatures in the dense parton phase with the string melting version of a multi-phase transport model. Parameters of the model are first constrained to reproduce the bulk data on the rapidity density, $p_{\rm T}$ spectrum and elliptic flow at low $p_{\rm T}$ for central and mid-central Au+Au collisions at $200A$ GeV and Pb+Pb collisions at $2760A$ GeV. I then calculate the transverse flow and effective temperatures in volume cells within mid-spacetime-rapidity $|η|<1/2$. I find that the effective temperatures extracted from different variables, which are all evaluated in the rest frame of a volume cell, can be very different; this indicates that the parton system in the model is not in full chemical or thermal equilibrium locally, even after averaging over many events. In particular, the effective temperatures extracted from the parton energy density or number density are often quite different than those extracted from the parton mean $p_{\rm T}$ or mean energy. For these collisions in general, effective temperatures extracted from the parton energy density or number density are higher than those extracted from the parton mean $p_{\rm T}$ in the inner part of the overlap volume, while the opposite occurs in the outer part of the overlap volume. I argue that this indicates that the dense parton matter in the inner part of the overlap volume is over-populated; I also find that all cells with energy density above 1 GeV/fm$^3$ are over-populated after a couple of fm/$c$.
description: Corrected a few typos including one in Eq.(8)
Non-Linear Resonance in Relativistic Preheating
Creators: name: Underwood, Bret
name: Zhai, Yunxiao
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Inflation in the early Universe can be followed by a brief period of preheating, resulting in rapid and non-equilibrium particle production through the dynamics of parametric resonance. However, the parametric resonance effect is very sensitive to the linearity of the reheating sector. Additional self-interactions in the reheating sector, such as non-canonical kinetic terms like the DBI Lagrangian, may enhance or frustrate the parametric resonance effect of preheating. In the case of a DBI reheating sector, preheating is described by parametric resonance of a damped relativistic harmonic oscillator. In this paper, we illustrate how the non-linear terms in the relativistic oscillator shut down the parametric resonance effect. This limits the effectiveness of preheating when there are non-linear self-interactions.
description: 17 pages, 10 figures. v2: Added references. v3: Added some references, additional discussion on particle production
Broadly speaking
Creators: name: Williams, Alicia B.
Publisher: name: No Publisher Supplied
Year: 2018

description: This dissertation argues that nineteenth-century British writers, in responding to the rise of mass literacy through conventions for addressing reading audiences, turned to literary form to imagine the public as a democratic concept. Associated above all with the diminutive appeal to the “dear reader,” these conventions are—when not bypassed as a gratuitous curiosity—often cast as a reactionary effort to contain the rise of a mass reading public in a singular, gentle figure. “Broadly Speaking” uncovers the remarkable range of devices for addressing readers in the periodical and the novel, including direct forms such as dear reader, networks of paratext, gothic frame tales and other structures for soliciting readers as interlocutors, and journalistic manifestos, among others. Focusing on the spatial dynamics organized by these conventions, I show how writers called on their ubiquity and pliability to situate audiences within an expanding reading public—a social body so sprawling that it was increasingly imagined in abstract terms. Because conventions of address appeal to unseen, uncountable readers, they proved uniquely able to implicate reading audiences in this shift towards abstraction. An abstractly drawn public is necessarily an inclusive public: across the diversity of these conventions, writers moved from evoking delimited and face-to-face relationships with readers to a theoretically egalitarian and limitless readership. In doing so, they used literary form to imagine a democratic public that accounted for all by counting none.
The Identification of Local Dust Events from DustWatch PM10 Signals and Their Interaction with Climate and Land Use Variables in Regional New South Wales
Creators: name: Lim, Bing Hong
Publisher: name: The Australian National University
Year: 2015

description: Wind erosion is a significant cause of land degradation in regional New South Wales. Reports on the state of wind erosion have primarily been focusing on more prominent dust storm events such as the 2009 Sydney “Red Dawn” event. Therefore, the establishment of the DustWatch network provides an unprecedented opportunity for the real-time monitoring of wind erosion in the region of New South Wales. The network provides high resolution dust and climate data which can be analyzed in relation to ground cover, rainfall, and wind patterns. This analysis provides a better understanding of the degree of natural erosion versus accelerated (i.e. anthropogenic induced) erosion. However, this process requires the separation of local dust events from regional dust events. To address this, the DustWatch team has been identifying local and regional dust events using methods of satellite imagery as well as physical surveys. This time-consuming process has accumulated a set of identified events. This research had utilized this set of identified events to derive a model which can predict the nature of dust events based on nine predictors fitted within the model. These predictors are derived from the characterization of the dust events identified by DustWatch, using CoDii’s temporal line graphs which illustrates the characteristics of dust, wind direction, and wind speed associated with each event. The developed logistic regression model was able to predict the nature of 548 events. Including the 183 events that were already identified by DustWatch, this research was able to utilise a total of 731 identified dust events. Spatio-temporal analysis and seasonal analysis were conducted on the set of 731 identified dust events. The analyses showed that the northern and southern regions’ spring-summer dust seasons and summer rainfall patterns, were generally supportive of McTainsh et al.'s (1998) dust storm seasonality. Large-scale climatic drivers such as the El Niño Southern Oscillation (ENSO) was a major cause of increased ground cover loss and higher magnitude of dust entrainment across the study region. The general pattern in wind direction for our study region supports the identification of the Simpson Desert-Channel Country, the Strzelecki Desert, and the Lake Eyre Basin as significant sources of dust to the region of Eastern Australia. Several catchments within New South Wales had been assessed to be vulnerable to wind erosion, which may explain the observation of high local dust entrainment in Moree.
A unified theory for perfect absorption in ultra-thin absorptive films with constant tangential electric or magnetic fields
Creators: name: Luo, Jie
name: Li, Sucheng
name: Hou, Bo
name: Lai, Yun
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The maximal absorption rate of ultra-thin films is 50% under the condition that the tangential electric (or magnetic) field is almost constant across the film in symmetrical environment. However, with certain reflectors, the absorption rate can be greatly increased, to even perfect absorption (100%). In this work, we explicitly derive the general conditions of the ultra-thin absorptive film parameters to achieve perfect absorption with general types of reflectors under the condition that the tangential electric (or magnetic) field is almost constant across the film. We find that the parameters of the film can be classified into three groups, exhibiting: 1) a large permittivity (permeability), 2) a near-zero permeability (permittivity), or 3) a suitable combination of the permittivity and the permeability, respectively. Interestingly, the latter two cases demonstrate extraordinary absorption in ultra-thin films with almost vanishing losses. Our work serves as a guide for designing ultra-thin perfect absorbers with general types of reflectors.
Charmless chiral perturbation theory for N_f=2+1+1 twisted mass lattice QCD
Creators: name: Baer, Oliver
name: Horz, Ben
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The chiral Lagrangian describing the low-energy behavior of N_f=2+1+1 twisted mass lattice QCD is constructed through O(a^2). In contrast to existing results the effects of a heavy charm quark are consistently removed, leaving behind a charmless 3-flavor Lagrangian. This Lagrangian is used to compute the pion and kaon masses to one loop in a regime where the pion mass splitting is large and taken as a leading order effect. In comparison with continuum chiral perturbation theory additional chiral logarithms are present in the results. In particular, chiral logarithms involving the neutral pion mass appear. These predict rather large finite volume corrections in the kaon mass which roughly account for the finite volume effects observed in lattice data.
description: v2: Error in derivation of the chiral Lagrangian corrected, results for pseudoscalar masses and conclusions unchanged. First part of the paper rewritten and shortened, typos corrected, references added. Matches published version
Vagabonde blu che non sono altro
Creators: Ufficio stampa Unibo
Publisher: name: Media Inaf
Year: 2023

All’inizio della loro nuova vita, le misteriose e affascinanti “blue straggler” si trovano più di frequente negli ammassi globulari a bassa densità stellare: lo rivela un’indagine – guidata da studiosi dell’Università di Bologna e dell’Inaf – che per la prima volta mette in luce una chiara relazione tra le proprietà fisiche di queste enigmatiche stelle e l’ambiente in cui si formano
L’età degli anelli di Saturno
Creators: Chiara Badia
Publisher: name: Media Inaf
Year: 2023

Come stabilire l’età degli anelli? Chiedendolo alla polvere. In questo caso, ai frammenti di micrometeoroidi che rivestono i pezzi di ghiaccio. Misurando quanti se ne sono accumulati su 163 grani analizzati dalla missione Cassini, è stato possibile giungere a una stima affidabile: gli anelli di Saturno hanno appena 400 milioni di anni. Meno d'un decimo dell’età del pianeta. E fra altri cento milioni di anni probabilmente non ci saranno più
Butter and Cheese: Sales Changes Associated with Three Levels of Promotion
Creators: name: Henderson, Peter L.
name: Henderson, Peter L.
Publisher: name: Unknown
Year: 1976
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Marketing
subject: FOS: Economics and business
subject: Butter
subject: cheese
subject: oleomargarine
subject: marketing
subject: promotion

description: Butter and cheese sales related to three levels of promotion investment were compared to sales with no promotion. The study period was May 1972-July 1973. For cheese, annual investments of 6 and 9 cents per capita produced sales gains of 15-18 percent in the test markets. Butter sales rose about 4.5 percent at the 9-cent promotion level, but showed no gains at lower levels, apparently because of the effect of counterpromotions for oleomargarine. Projecting test market results to all U.S. supermarkets gave an increase of 244 million pounds in annual cheese sales, or the equivalent of 24.4 million hundredweight of fluid milk, for a promotion cost of $12 million, or 50 cents per hundredweight for the additional milk sold. For butter, the increase would be 21 million pounds, unadjusted for oleomargarine advertising. The milk equivalent would be 4.5 million hundredweight, and the cost of the national promotion campaign, $18 million. Adjusted for oleomargarine counterpromotion, the increase in butter sales would be 60 million pounds, or 12.7 million hundredweight of milk equivalent. The value of added milk sales would be about $100 million, for a promotion cost of about $1.42 per hundredweight.
Isolation and characterization of few-layer black phosphorus
Creators: name: Castellanos-Gomez, Andres
name: Vicarelli, Leonardo
name: Prada, Elsa
name: Island, Joshua O.
name: Narasimha-Acharya, K. L.
name: Blanter, Sofya I.
name: Groenendijk, Dirk J.
name: Buscema, Michele
name: Steele, Gary A.
name: Alvarez, J. V.
name: Zandbergen, Henny W.
name: Palacios, J. J.
name: van der Zant, Herre S. J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Isolation and characterization of mechanically exfoliated black phosphorus flakes with a thickness down to two single-layers is presented. A modification of the mechanical exfoliation method, which provides higher yield of atomically thin flakes than conventional mechanical exfoliation, has been developed. We present general guidelines to determine the number of layers using optical microscopy, Raman spectroscopy and transmission electron microscopy in a fast and reliable way. Moreover, we demonstrate that the exfoliated flakes are highly crystalline and that they are stable even in free-standing form through Raman spectroscopy and transmission electron microscopy measurements. A strong thickness dependence of the band structure is found by density functional theory calculations. The exciton binding energy, within an effective mass approximation, is also calculated for different number of layers. Our computational results for the optical gap are consistent with preliminary photoluminescence results on thin flakes. Finally, we study the environmental stability of black phosphorus flakes finding that the flakes are very hydrophilic and that long term exposure to air moisture etches black phosphorus away. Nonetheless, we demonstrate that the aging of the flakes is slow enough to allow fabrication of field-effect transistors with strong ambipolar behavior. Density functional theory calculations also give us insight into the water-induced changes of the structural and electronic properties of black phosphorus.
description: 11 main figures, 7 supporting figures
From Wasteland to Natural Treasure: Towards an Ecosystem Services Framework for South East Australia's Upland Peatlands
Creators: name: Murray, Anne
Publisher: name: The Australian National University
Year: 2019

description: This project explores the question: how can understanding of the characteristics and services delivered by South East Australian upland peatlands be improved to enhance their management? South East Australian upland peatlands are a rare type of freshwater wetland. They provide many important ecosystem services, including surface water supply and sediment filtration. The majority of South East Australian upland peatlands are found in national parks, but they are still being degraded. The current management of upland peatlands is inadequate because there is a lack of understanding of their characteristics and values. This deficiency arises from ambiguous peatland terminology and classification, as well as a lack of integrated information. Further, the ecosystem services provided by upland peatlands have not been systematically identified. In order to address these limitations, the current study considers three research sub-questions: 1. Can upland peatlands in South East Australia be understood as a distinct system for management purposes? 2. What ecosystem services are provided by upland peatlands in South East Australia? 3. What indicators can be used to assess the ecosystem services provided by upland peatlands in South East Australia? The first sub-question was investigated by comparing the characteristics of upland peatlands across the Australian Alps, New England Tablelands, South Eastern Highlands and Sydney Basin bioregions. The analysis shows that they share most characteristics, and can be understood as a distinct, although spatially disjunct, system for management purposes. The second research sub-question was explored using the “Common International Classification of Ecosystem Services” framework. The review demonstrates that upland peatlands provide many provisioning, regulating and cultural services, with regulating services being particularly important. Cultural services are rarely considered in peatland research literature, and deserve greater attention. The final research sub-question was addressed by identifying potential indicators for each ecosystem service, and evaluating these against key criteria, including data availability. Potential indicators exist for every ecosystem service, but this potential is limited by a lack of available data. The study identifies directions for future monitoring and research.
Sedici metri di felicità per il radar di Juice
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2023

Operazione perfettamente riuscita a sette milioni di km dalla Terra: il team dell’Esa, l’Agenzia spaziale europea, dando uno “scossone” ben calcolato alla sonda in viaggio verso Giove, è riuscito a sbloccare – dopo tre settimane di suspense – l’antenna da 16 metri del radar italiano Rime. Ora è completamente aperta. Ci siamo fatti raccontare tutti i dettagli dal responsabile scientifico di Rime, Lorenzo Bruzzone, dell’Università di Trento
Representations of resilience in the disaster policies of four association of South East Asian Nations (ASEAN) member states
Creators: name: Niall, Asha
Publisher: name: The Australian National University
Year: 2015

description: Disasters have the ability to overwhelm coping capacities of both communities and the state. This makes them an area of significant concern on local, regional, national and international scales. The international governance framework established to deal with disaster risk is the Hyogo Framework (HFA) and its successor, the Sendai Framework for Action (SFA), and has been adopted by the Association of South East Asian Nations (ASEAN) to guide disaster policy development in the region. Climate change is a major driver of disaster risk, and is governed internationally by the United Nations Framework Convention on Climate Change (UNFCCC). These two frameworks aim to address disaster risk through building resilience by reducing vulnerability. This thesis is concerned with ideas that influence the development of disaster policy within the Association of South East Asian Nations (ASEAN). More specifically, how the concept of resilience permeates from international governance frameworks, into regional agreements and domestic policy. Resilience is contested and can be loosely defined – within this study it is understood as a network of adaptive capacities. Word searches and document analysis of key country documents were used to examine how resilience is reflected in disaster policy within ASEAN countries. Due to the scoping limitations of this study, four countries -­‐ Cambodia, Lao PDR, Indonesia and the Philippines – are explored. This thesis found that resilience is described as a general goal, used as a guide for a broader policy direction over different time scales, across multiple levels of government. Throughout analysis, it became clear that disaster risk is influenced by a variety of factors, many of which need to be better understood. Similarly, resilience is used to inform policy explicitly designed to address increased risk from disaster as a result of low levels of development. There is also a strong focus on vulnerability through the lenses of demographic dynamics, including gender. However it is unclear how enhanced demographic information influences disaster policy. This thesis established that resilience ‘works’ within policy by drawing together multiple temporal, spatial and governance scales, and can encourage interactions by creating networks to build adaptive capacities. Resilience has a strong influence on international, regional and domestic disaster policy. By demonstrating how resilience is reflected in disaster policy, this research provides a firm foundation for areas of further study, particularly surrounding the implementation and efficacy of disaster policy within ASEAN states.
Webb osserva l’atmosfera di un sub-nettuniano
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2023

Dopo oltre un decennio, grazie allo sguardo a infrarossi del telescopio spaziale James Webb, gli astronomi sono riusciti a osservare attraverso lo spesso strato di foschia che ricopre il sub-nettuniano Gj 1214b, un esopianeta a 40 anni luce dalla Terra. Sembra essere un mondo acquatico e la foschia – o lo strato di nubi – che lo ricopre è stranamente brillante e riflettente
Feasibility of Preparation of Master Plans for Villages
Creators: name: Fatewar, Meet
Publisher: name: figshare
Year: 2023
Subjects: Rural community development

description: Rural Development is important for the nation’s socio-economic development. It is the process of improving the well-being, economic conditions and upgradation of physical and social infrastructure. India has more than six lakh villages. Out of the total 1.21 billion population of India, 69 percent (0.83 billion) population lives in the rural settlements. The rural population has increased by 0.09 billion in absolute number but it has declined from 72 percent in 2001 to 69 percent in 2011 in percentage. India with its large rural population is also called a nation of villages.
Pseudo-Critical Enhancement of Thermal Photons in Relativistic Heavy-Ion Collisions
Creators: name: van Hees, Hendrik
name: He, Min
name: Rapp, Ralf
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the spectra and elliptic flow of thermal photons emitted in ultrarelativistic heavy-ion collisions (URHICs) at RHIC and LHC. The thermal emission rates are taken from complete leading-order rates for the QGP and hadronic many-body calculations including baryons and antibaryons, as well as meson-exchange reactions (including Bremsstrahlung). We first update previous thermal fireball calculations by implementing a lattice-QCD based equation of state and extend them to compare to recent LHC data. We then scrutinize the space-time evolution of Au-Au collisions at RHIC by employing an ideal hydrodynamic model constrained by bulk- and multistrange-hadron spectra and elliptic flow, including a non-vanishing initial flow. We systematically compare the evolutions of temperature, radial flow, azimuthal anisotropy and four-volume, and exhibit the temperature profile of thermal photon radiation. Based on these insights, we put forward a scenario with a "pseudo-critical enhancement" of thermal emission rates, and investigate its impact on RHIC and LHC direct photon data.
description: 11 pages, 12 figures; v2: version accepted for publication in Nucl. Phys. A
Engaging with the sociocultural complexity of food in Australia's contemporary food culture: A case study of an ACT farmers' market
Creators: name: O'Hara, Sean
Publisher: name: The Australian National University
Year: 2015

description: The globalisation, industrialisation and commoditisation of Australia’s mainstream food system over the last fifty years has had a detrimental impact on Australia’s environmental and population health. The failure of this system suggests the need for an alternative, but the dominance of this system means that any alternative would require a significant cultural shift towards a more integrative approach to food. Changes to consumption are central to such a shift, particularly in how people engage with the sociocultural complexity of food. There is a considerable body of literature on how farmers’ markets fit within, yet provide an alternative, to this system. This thesis contributes to this literature by examining the role of farmers’ markets in improving engagement with the sociocultural complexity of food within Australia’s contemporary food culture. This examination was conducted through a qualitative case study of the Capital Region Farmers’ Market (CRFM) in Canberra, ACT involving semi-structured interviews with key stakeholder groups – eaters, producers and organisers. Through an analysis of these interviews, this thesis found that within this vanguard demographic there are precursor conditions for a cultural shift in Australia’s contemporary food system and culture. The initial precursor condition was how farmers’ markets encourage eaters to engage in positive food routines in their everyday life, namely enjoying sharing meals, enjoying food shopping and understanding the complexities of eating. The other precursor condition was how farmers’ markets challenge the efficiency narrative of the contemporary mainstream food system by fostering the importance of eating and production values other than price and convenience. Eating values relating to food quality and the social value of food were more important than the production values of connection to land and production, economic support for producers and sustainable production methods. These findings add to our understanding of the values that are fostered in farmers’ markets. However, for a cultural shift to occur, there needs to be mainstream change. The results relating to positive food routines suggest that this concept could be an initial step for improving engagement with the sociocultural complexity of food, which crosses demographic boundaries, and therefore has implications for further research in this field.
Il centro galattico non è per giovani coppie
Creators: Valentina Guglielmo
Publisher: name: Media Inaf
Year: 2023

Stelle giovani e massicce che normalmente si trovano in coppia, vicino al buco nero supermassiccio al centro della nostra galassia sono, al contrario, inspiegabilmente sole. È quanto emerge da uno studio osservativo lungo un decennio su 16 giovani stelle nell’ammasso centrale, e dalle stime statistiche da esso derivate. La ragione precisa rimane da scoprire
Quantifying Systemic Risk by Solutions of the Mean-Variance Risk Model
Creators: name: Jurczyk, Jan
name: Eckrot, Alexander
name: Morgenstern, Ingo
Publisher: name: Universität Regensburg
Year: 2016
Subjects: subject: PORTFOLIO SELECTION-PROBLEMS; HYBRID LOCAL SEARCH; CROSS-CORRELATIONS; OPTIMIZATION; TRANSITIONS; MARKET;
subject: 530 Physik

description: The world is still recovering from the financial crisis peaking in September 2008. The triggering event was the bankruptcy of Lehman Brothers. To detect such turmoils, one can investigate the time-dependent behaviour of correlations between assets or indices. These cross-correlations have been connected to the systemic risks within markets by several studies in the aftermath of this crisis. We study 37 different US indices which cover almost all aspects of the US economy and show that monitoring an average investor's behaviour can be used to quantify times of increased risk. In this paper the overall investing strategy is approximated by the ground-states of the mean-variance model along the efficient frontier bound to real world constraints. Changes in the behaviour of the average investor is utlilized as a early warning sign.
On zero energy states in graphene
Creators: name: Ho, C. -L.
name: Roy, P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We obtain zero energy states in graphene for a number of potentials and discuss the relation of the decoupled Schrödinger-like equations for the the spinor components with non relativistic $\cal{PT}$ symmetric quantum mechanics.
description: 4 pages, 2 figures. Presentation improved, two figures added, references updated
The Racialised Funnel of Inequality: Public Primary Education in Mauritius
Creators: name: Bachraz, Vijetta
Publisher: name: The Australian National University
Year: 2023

description: Education is often perceived as the great decolonising equaliser in many former colonies. Memories of racial and social inequalities instituted by colonial domination have been replaced with the conviction that social mobility through the education system is democratically afforded to all, regardless of race, ethnicity, and religion (Bereketeab, 2020). Yet, little is known about how in neoliberal times, their public education systems produce neocolonial social arrangements that serve the interests of the new dominant while creating racialised inequality through high-stakes examinations with genesis in colonisation. This dissertation examines how the neocolonial state in pluri-ethnic Mauritius configures the primary education system to create and reproduce social and racial patterns of inequality by drawing on ethnographic research undertaken in two socio-economically and racially distinct schools with contrasting academic performance levels as case studies. This thesis unites Bourdieu's Theory of Practice and Critical Race Theory to illuminate how high-stakes examinations and educational policies preserve the interests of whiteness and the dominant class. It explores how high-stakes examinations structure practices within the field of primary education to instantiate the "new eugenics" (Baker, 2002, p. 670), the processes of selection, classification and elimination that reproduce racialised educational inequality. This study employed a historical approach and a relational analysis to examine the two case studies at different levels, focusing on the island's history of colonisation, the local, national, and global contexts, and the macro educational structures that shape practices at the micro level of the family. This study finds that the upper and broader middle class of Indo-Mauritians (Mauritians of Indian ancestry), who benefit from the Hindu-dominant state, collude to reproduce historical patterns of classed and racialised educational advantage and disadvantage. This occurs behind the facade of meritocracy and constructions of intelligence shaped by the Certificate of Primary Education (CPE) high-stakes examinations. The focus on high-stakes examinations to gauge the health of the public education system generates compensatory educational policies and practices that reproduce systemic racism, (re)constructing the Creole (Mauritians of African ancestry) working class as deviating from standards of normality that define a proper person. The findings of this thesis make important theoretical, methodological, and empirical contributions to postcolonial sociology in studying how social transformation and neocolonial domination unfold through public education.
Vita su Marte? La risposta dall’italiano Ma_Miss
Creators: Ufficio stampa Inaf
Publisher: name: Media Inaf
Year: 2023

Progettato per studiare la mineralogia e le proprietà fisiche del sottosuolo marziano, lo spettrometro Ma_Miss a bordo del rover Rosalind Franklin della missione Esa ExoMars potrà rivelare anche la presenza di sostanze organiche tra cui l’acido benzoico, già trovato su Marte dal rover Curiosity. Lo dimostra uno studio pubblicato su Astrobiology, guidato da ricercatori e ricercatrici dell’Inaf, dell’Asi e dell’Università Aix Marseille
title: DS 11.3: Additional seismogram examples at distances beyond 100°
Creators: name: Klinge, Klaus
name: Wendt, Siegfried
name: Bormann, Peter
Publisher: name: Deutsches GeoForschungsZentrum GFZ
Year: 2012
Subjects: Seismology

description: New Manual of Seismological Observatory Practice 2 (NMSOP2)
Exposing and selling the use of web Services - an Option to be considered in make-or-buy decision-making
Creators: name: Zimmermann, Steffen
name: Müller, Marcel
name: Heinrich, Bernd
Publisher: name: Universität Regensburg
Year: 2016
Subjects: subject: DEVELOPMENT COST ESTIMATION; REAL OPTIONS; INFORMATION-TECHNOLOGY; MEAN REVERSION; DEVELOPMENT-PROJECTS; SOFTWARE; INVESTMENT; MANAGEMENT; RISK; UNCERTAINTY; Make-or-buy decisions; Web services; Real option theory; Sell option; Web service market
subject: 650 Management

description: The emergence of the web service market has enabled firms to choose between developing web services internally and purchasing them externally from web service providers. In general, these so-called make-or-buy decisions have been the object of intense debate in the IT outsourcing literature. However, characteristics of web services such as loose coupling and the current trend of digitalizing application interfaces enable new opportunities especially to non-software firms: when a firm decides to develop a web service internally (make-decision), it has the option of exposing and selling the use of this web service after its internal development (sell option). In this paper, we propose a normative approach for the valuation of such a sell option based on real option theory, taking into account the characteristics of web services. This approach enhances traditional make-or-buy approaches by additionally considering this sell option in decision-making. Our results are twofold: (I) the sell option has considerable impact on traditional make-or-buy decisions and makes the internal development of web services more attractive; (II) it is preferable to execute the sell option as soon as possible after completion of the internal development of the web service. (C) 2016 Elsevier B.V. All rights reserved.
Risolto il mistero del buco nero in fuga
Creators: Jacopo Danieli
Publisher: name: Media Inaf
Year: 2023

Una scia luminosa in un’immagine del telescopio spaziale Hubble era stata oggetto di uno studio pubblicato pochi giorni fa in cui veniva descritta come una lunga traccia di stelle in formazione innescata da un buco nero supermassiccio in fuga da una galassia. Ora, un team di ricercatori dell’Instituto de Astrofísica de Canarias fornisce una spiegazione alternativa meno esotica. I dettagli su A&A Letters
Conservation laws protect dynamic spin correlations from decay: Limited role of integrability in the central spin model
Creators: name: Uhrig, Goetz S.
name: Hackmann, Johannes
name: Stanek, Daniel
name: Stolze, Joachim
name: Anders, Frithjof B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Mazur's inequality renders statements about persistent correlations possible. We generalize it in a convenient form applicable to any set of linearly independent constants of motion. This approach is used to show rigorously that a fraction of the initial spin correlations persists indefinitely in the isotropic central spin model unless the average coupling vanishes. The central spin model describes a major mechanism of decoherence in a large class of potential realizations of quantum bits. Thus the derived results contribute significantly to the understanding of the preservation of coherence. We will show that persisting quantum correlations are not linked to the integrability of the model, but caused by a finite operator overlap with a finite set of constants of motion.
description: 5 pages, 1 figure, +2 pages supplemental material Small changes and some additional explicit calculations in the supplement
Hard and thermal probes of QGP from the perspective of Lattice QCD
Creators: name: Ding, Heng-Tong
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this talk I review the current status of lattice QCD results on the hard and thermal probes of QGP, including jet quenching parameters, the melting of quarkonia and open heavy flavours, thermal photon/dilepton rates, electrical conductivity as well as heavy quark diffusion coefficients.
description: 6 pages, plenary talk given at the 6th International Conference on Hard and Electromagnetic Probes of High-energy Nuclear Collisions (Hard Probes 2013), accepted version to appear in NPA
On the hardness of classically simulating the one clean qubit model
Creators: name: Morimae, Tomoyuki
name: Fujii, Keisuke
name: Fitzsimons, Joseph F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Complexity (cs.CC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Deterministic quantum computation with one quantum bit (DQC1) is a model of quantum computing where the input restricted to containing a single qubit in a pure state and with all other qubits in a completely-mixed state, with only a single qubit measurement at the end of the computation [E. Knill and R. Laflamme, Phys. Rev. Lett. {\bf81}, 5672 (1998)]. While it is known that DQC1 can efficiently solve several problems for which no known classical efficient algorithms exist, the question of whether DQC1 is really more powerful than classical computation remains open. In this paper, we introduce a slightly modified version of DQC1, which we call DQC1$_k$, where $k$ output qubits are measured, and show that DQC1$_k$ cannot be classically efficiently simulated for any $k\geq3$ unless the polynomial hierarchy collapses at the third level.
description: 5 pages, 4 figures
Direct comparison of optical lattice clocks with an intercontinental baseline of 9 000 km
Creators: name: Hachisu, H.
name: Fujieda, M.
name: Nagano, S.
name: Gotoh, T.
name: Nogami, A.
name: Ido, T.
name: Falke, St.
name: Huntemann, N.
name: Grebing, C.
name: Lipphardt, B.
name: Lisdat, Ch.
name: Piester, D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We have demonstrated a direct frequency comparison between two $^{87}{\rm Sr}$ lattice clocks operated in intercontinentally separated laboratories in real time. Two-way satellite time and frequency transfer technique based on the carrier phase was employed for a direct comparison with a baseline of 9 000 km between Japan and Germany. A clock comparison was achieved for 83 640 s resulting in a fractional difference of $(1.1\pm1.6) \times 10^{-15}$, where the statistical part is the biggest contribution to the uncertainty. This measurement directly confirms the agreement of the two optical clocks on an intercontinental scale.
Colto sul nascere il bagliore ottico di un Grb
Creators: Ufficio Comunicazione Gssi
Publisher: name: Media Inaf
Year: 2023

Ricercatori del Gssi e dell’Inaf tra gli autori principali di uno studio che contribuisce a svelare i misteri dei lampi di raggi gamma, le esplosioni più potenti dell’universo, osservando la luce visibile durante l’emissione gamma. L’articolo, pubblicato oggi su Nature Astronomy, mostra come osservare la prima luce emessa sia fondamentale nel comprendere le misteriose proprietà dei velocissimi getti di materia ed energia che si generano nell’esplosione di stelle massicce
OLS: capacity building in open science in peer-led global and diverse community
Creators: name: Sundukova, Mayya
name: Paladin, Lisanna
name: Eranti, Pradeep
name: Sharan, Malvika
Publisher: name: Zenodo
Year: 2023
Subjects: open research
community
sustainability
mentoring
training
researchers
open science

description: This is an abstract, poster and talk presentation at the Annual Conference 2023 of the Marie Curie Alumni Association, presented in Cordoba, Spain in 24 and 25 of February. We speak about capacity building in digital and global community through training and mentoring program for Open Science ambassadors and community of practice. We present the practices for equitable participation in the program and developed open educational resources, and share an example of community response to public consultations in best practices in open science. We would like to thank the Executive Director Yo Yehudi and all Open Life Science community members.
On the distribution of stellar remnants around massive black holes: slow mass segregation, star cluster inspirals and correlated orbits
Creators: name: Antonini, Fabio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the long term dynamical evolution of stellar mass black holes (BHs) at the Galactic center (GC) and put constraints on their number and central mass distribution. Models of the GC are considered that have not yet achieved a steady state under the influence of random gravitational encounters. Contrary to some recent claims that mass-segregation can rapidly rebuild a density cusp in the stars, we find that time scales associated with cusp regrowth are longer than the Hubble time. These results cast doubts on standard models that postulate high densities of BHs near the GC and motivate studies that start from initial conditions which correspond to well-defined physical models. For the first time, we consider the distribution of BHs in a dissipationless formation model for the Milky Way nuclear cluster (NC), in which massive stellar clusters merge in the GC to form a nucleus. We simulate the successive inspiral of massive clusters containing an inner dense cluster of BHs. The pre-existing mass segregation is not completely erased as the clusters are disrupted by the massive black hole tidal field. As a result, after 12 inspiral events a NC forms in which the BHs have higher central densities than the stars. After evolving the model for 5-10 Gyr, the BHs do form a steep central cusp, while the stellar distribution maintains properties that resemble those of the Milky Way NC. Finally, we investigate the effect of BH perturbations on the motion of the GC S-stars, as a means of constraining the number of the perturbers. We find that reproducing the S-star orbital distribution requires >~1000 BHs within 0.1 pc of Sgr A*. A dissipationless formation scenario for the Milky Way NC is consistent with this lower limit and therefore could reconcile the need for high central densities of BHs (to explain the orbits of the S-stars), with the missing-cusp problem of the GC giant star population.
description: 23 pages, 21 Figures. Accepted for publication in ApJ
Renormalized stress tensor for massive fields in Kerr-Newman spacetime
Creators: name: Belokogne, Andrei
name: Folacci, Antoine
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a four-dimensional spacetime, the DeWitt-Schwinger expansion of the effective action associated with a massive quantum field reduces, after renormalization and in the large mass limit, to a single term constructed from the purely geometrical Gilkey-DeWitt coefficient $a_3$ and its metric variation provides a good analytical approximation for the renormalized stress-energy tensor of the quantum field. Here, from the general expression of this tensor, we obtain analytically the renormalized stress-energy tensors of the massive scalar field, the massive Dirac field and the Proca field in Kerr-Newman spacetime. It should be noted that, even if, at first sight, the expressions obtained are complicated, their structure is in fact rather simple, involving naturally spacetime coordinates as well as the mass $M$, the charge $Q$ and the rotation parameter $a$ of the Kerr-Newman black hole and permitting us to recover rapidly the results already existing in the literature for the Schwarzschild, Reissner-Nordström and Kerr black holes (and to correct them in the latter case). In the absence of exact results in Kerr-Newman spacetime, our approximate renormalized stress-energy tensors could be very helpful, in particular to study the backreaction of massive quantum fields on this spacetime or on its quasinormal modes.
description: v2: Presentation greatly improved, discussions and references added.v3: Matches the published version
Vasti vivai stellari nell’atlante di Visions
Creators: Redazione Eso
Publisher: name: Media Inaf
Year: 2023

Grazie a oltre un milione di immagini acquisite in cinque anni dal telescopio Vista dell'Eso, un team di astronomi ha prodotto l’atlante “Visions”, una vasta raccolta in infrarosso di cinque incubatrici stellari nel nostro vicinato cosmico. Lo studio è in corso di pubblicazione su Astronomy & Astrophysics
Evaluasi Diri dalam Pedoman Akreditasi Jurnal Ilmiah Tahun 2021
Creators: name: Suyanto, Helmi
Publisher: name: Zenodo
Year: 2022
Subjects: Relawan Jurnal Indonesia
akreditasi jurnal

description: Disampaikan pada Workshop Peningkatan Peringkat Akreditasi Jurnal Fakultas Teknik UNNES Semarang 22 November 2022
Kiki e Totoro, dall’asteroide consegna a domicilio
Creators: Ufficio stampa Inaf
Publisher: name: Media Inaf
Year: 2023

Un viaggio lunghissimo nel Sistema solare li ha portati da Ryugu alla Terra, all’interno della capsula di raccolta della sonda Hayabusa2 che li ha prelevati dalla superficie del corpo celeste nel 2019. Due piccoli grani, lunghi meno di due millimetri per tre milligrammi di peso, parte del preziosissimo carico, sono giunti dal Giappone ai laboratori dell’Inaf a Roma, dove un team di ricerca li analizzerà con l’ambizioso obiettivo di ricostruire la storia dell’evoluzione di Ryugu
EVALUASI DIRI dalam Pedoman Akreditasi Jurnal Ilmiah Tahun 2021
Creators: name: Suyanto, Helmi
Publisher: name: Zenodo
Year: 2022
Subjects: Relawan Jurnal Indonesia
akreditasi jurnal
FST UIN Walisongo

description: Paparan disampaikan pada Workshop Peningkatan Peringkat Akreditasi Jurnal FST UIN Walisongo Semarang, tanggal 16 November 2022.
All’origine delle bolle di eRosita
Creators: Giuseppe Fiasconaro
Publisher: name: Media Inaf
Year: 2023

Stando a una nuova ricerca condotta da un team internazionale di ricercatori, all'origine delle “bolle di eRosita” – enormi lobi di gas caldo che si estendono per migliaia di chilometri sopra e sotto il piano della nostra galassia – non ci sarebbe l'intensa attività del buco nero supermassiccio al centro della Via Lattea, Sgr A*, bensì una vigorosa attività di formazione stellare. Tutti i dettagli su Nature Astronomy
Julian Assange, o Wikileaks e o princípio de voz ativa
Creators: name: Miotto, Marcio
Publisher: name: Zenodo
Year: 2012
Subjects: wikileaks, politica, assange, democracia, autoritarismo, voz publica, isegoria

description: Manchete: O que os constrangimentos contra Assange podem ensinar sobre nossa noção de “liberdade”? Miotto, M. Julian Assange, o Wikileaks e o princípio de voz ativa. Amálgama, 28/08/2012 https://www.revistaamalgama.com.br/08/2012/julian-assange-o-wikileaks-e-o-principio-de-voz-ativa/ (depósito DOI: 10.5281/zenodo.4291102 )
On the relationship between a quantum Markov semigroup and its representation via linear stochastic Schroedinger equations
Creators: name: Fagnola, Franco
name: Mora, Carlos
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60H15, 46L55, 60H30, 81S22

description: A quantum Markov semigroup can be represented via classical diffusion processes solving a stochastic Schrödinger equation. In this paper we first prove that a quantum Markov semigroup is irreducible if and only if classical diffusion processes are total in the Hilbert space of the system. Then we study the relationship between irreducibility of a quantum Markov semigroup and properties of these diffusions such as accessibility, the Lie algebra rank condition, and irreducibility. We prove that all these properties are, in general, weaker than irreducibility of the quantum Markov semigroup, nevertheless, they are equivalent for some important classes of semigroups.
description: 16 pages